gromer

git clone https://pyrossh.dev/repos/gromer.git

gromer is a framework and cli to build multipage web apps in golang using htmx and alpinejs.

f8ffbbb6 — Peter John

add hyperscript

Files changed (4) hide show

assets/js/codemirror-javascript@5.63.1.js +0 -1079
assets/js/codemirror@5.63.1.min.js +0 -1
assets/js/hyperscript@0.9.6.js +7351 -0
http.go +1 -0

assets/js/codemirror-javascript@5.63.1.js DELETED Viewed

@@ -1,1079 +0,0 @@
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: https://codemirror.net/LICENSE
-(function (mod) {
-  if (typeof exports == 'object' && typeof module == 'object')
-    // CommonJS
-    mod(require('../../lib/codemirror'));
-  else if (typeof define == 'function' && define.amd)
-    // AMD
-    define(['../../lib/codemirror'], mod);
-  // Plain browser env
-  else mod(CodeMirror);
-})(function (CodeMirror) {
-  'use strict';
-  CodeMirror.defineMode('javascript', function (config, parserConfig) {
-    var indentUnit = config.indentUnit;
-    var statementIndent = parserConfig.statementIndent;
-    var jsonldMode = parserConfig.jsonld;
-    var jsonMode = parserConfig.json || jsonldMode;
-    var trackScope = parserConfig.trackScope !== false;
-    var isTS = parserConfig.typescript;
-    var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
-    // Tokenizer
-    var keywords = (function () {
-      function kw(type) {
-        return { type: type, style: 'keyword' };
-      }
-      var A = kw('keyword a'),
-        B = kw('keyword b'),
-        C = kw('keyword c'),
-        D = kw('keyword d');
-      var operator = kw('operator'),
-        atom = { type: 'atom', style: 'atom' };
-      return {
-        if: kw('if'),
-        while: A,
-        with: A,
-        else: B,
-        do: B,
-        try: B,
-        finally: B,
-        return: D,
-        break: D,
-        continue: D,
-        new: kw('new'),
-        delete: C,
-        void: C,
-        throw: C,
-        debugger: kw('debugger'),
-        var: kw('var'),
-        const: kw('var'),
-        let: kw('var'),
-        function: kw('function'),
-        catch: kw('catch'),
-        for: kw('for'),
-        switch: kw('switch'),
-        case: kw('case'),
-        default: kw('default'),
-        in: operator,
-        typeof: operator,
-        instanceof: operator,
-        true: atom,
-        false: atom,
-        null: atom,
-        undefined: atom,
-        NaN: atom,
-        Infinity: atom,
-        this: kw('this'),
-        class: kw('class'),
-        super: kw('atom'),
-        yield: C,
-        export: kw('export'),
-        import: kw('import'),
-        extends: C,
-        await: C,
-      };
-    })();
-    var isOperatorChar = /[+\-*&%=<>!?|~^@]/;
-    var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
-    function readRegexp(stream) {
-      var escaped = false,
-        next,
-        inSet = false;
-      while ((next = stream.next()) != null) {
-        if (!escaped) {
-          if (next == '/' && !inSet) return;
-          if (next == '[') inSet = true;
-          else if (inSet && next == ']') inSet = false;
-        }
-        escaped = !escaped && next == '\\';
-      }
-    }
-    // Used as scratch variables to communicate multiple values without
-    // consing up tons of objects.
-    var type, content;
-    function ret(tp, style, cont) {
-      type = tp;
-      content = cont;
-      return style;
-    }
-    function tokenBase(stream, state) {
-      var ch = stream.next();
-      if (ch == '"' || ch == "'") {
-        state.tokenize = tokenString(ch);
-        return state.tokenize(stream, state);
-      } else if (ch == '.' && stream.match(/^\d[\d_]*(?:[eE][+\-]?[\d_]+)?/)) {
-        return ret('number', 'number');
-      } else if (ch == '.' && stream.match('..')) {
-        return ret('spread', 'meta');
-      } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
-        return ret(ch);
-      } else if (ch == '=' && stream.eat('>')) {
-        return ret('=>', 'operator');
-      } else if (ch == '0' && stream.match(/^(?:x[\dA-Fa-f_]+|o[0-7_]+|b[01_]+)n?/)) {
-        return ret('number', 'number');
-      } else if (/\d/.test(ch)) {
-        stream.match(/^[\d_]*(?:n|(?:\.[\d_]*)?(?:[eE][+\-]?[\d_]+)?)?/);
-        return ret('number', 'number');
-      } else if (ch == '/') {
-        if (stream.eat('*')) {
-          state.tokenize = tokenComment;
-          return tokenComment(stream, state);
-        } else if (stream.eat('/')) {
-          stream.skipToEnd();
-          return ret('comment', 'comment');
-        } else if (expressionAllowed(stream, state, 1)) {
-          readRegexp(stream);
-          stream.match(/^\b(([gimyus])(?![gimyus]*\2))+\b/);
-          return ret('regexp', 'string-2');
-        } else {
-          stream.eat('=');
-          return ret('operator', 'operator', stream.current());
-        }
-      } else if (ch == '`') {
-        state.tokenize = tokenQuasi;
-        return tokenQuasi(stream, state);
-      } else if (ch == '#' && stream.peek() == '!') {
-        stream.skipToEnd();
-        return ret('meta', 'meta');
-      } else if (ch == '#' && stream.eatWhile(wordRE)) {
-        return ret('variable', 'property');
-      } else if ((ch == '<' && stream.match('!--')) || (ch == '-' && stream.match('->') && !/\S/.test(stream.string.slice(0, stream.start)))) {
-        stream.skipToEnd();
-        return ret('comment', 'comment');
-      } else if (isOperatorChar.test(ch)) {
-        if (ch != '>' || !state.lexical || state.lexical.type != '>') {
-          if (stream.eat('=')) {
-            if (ch == '!' || ch == '=') stream.eat('=');
-          } else if (/[<>*+\-|&?]/.test(ch)) {
-            stream.eat(ch);
-            if (ch == '>') stream.eat(ch);
-          }
-        }
-        if (ch == '?' && stream.eat('.')) return ret('.');
-        return ret('operator', 'operator', stream.current());
-      } else if (wordRE.test(ch)) {
-        stream.eatWhile(wordRE);
-        var word = stream.current();
-        if (state.lastType != '.') {
-          if (keywords.propertyIsEnumerable(word)) {
-            var kw = keywords[word];
-            return ret(kw.type, kw.style, word);
-          }
-          if (word == 'async' && stream.match(/^(\s|\/\*([^*]|\*(?!\/))*?\*\/)*[\[\(\w]/, false)) return ret('async', 'keyword', word);
-        }
-        return ret('variable', 'variable', word);
-      }
-    }
-    function tokenString(quote) {
-      return function (stream, state) {
-        var escaped = false,
-          next;
-        if (jsonldMode && stream.peek() == '@' && stream.match(isJsonldKeyword)) {
-          state.tokenize = tokenBase;
-          return ret('jsonld-keyword', 'meta');
-        }
-        while ((next = stream.next()) != null) {
-          if (next == quote && !escaped) break;
-          escaped = !escaped && next == '\\';
-        }
-        if (!escaped) state.tokenize = tokenBase;
-        return ret('string', 'string');
-      };
-    }
-    function tokenComment(stream, state) {
-      var maybeEnd = false,
-        ch;
-      while ((ch = stream.next())) {
-        if (ch == '/' && maybeEnd) {
-          state.tokenize = tokenBase;
-          break;
-        }
-        maybeEnd = ch == '*';
-      }
-      return ret('comment', 'comment');
-    }
-    function tokenQuasi(stream, state) {
-      var escaped = false,
-        next;
-      while ((next = stream.next()) != null) {
-        if (!escaped && (next == '`' || (next == '$' && stream.eat('{')))) {
-          state.tokenize = tokenBase;
-          break;
-        }
-        escaped = !escaped && next == '\\';
-      }
-      return ret('quasi', 'string-2', stream.current());
-    }
-    var brackets = '([{}])';
-    // This is a crude lookahead trick to try and notice that we're
-    // parsing the argument patterns for a fat-arrow function before we
-    // actually hit the arrow token. It only works if the arrow is on
-    // the same line as the arguments and there's no strange noise
-    // (comments) in between. Fallback is to only notice when we hit the
-    // arrow, and not declare the arguments as locals for the arrow
-    // body.
-    function findFatArrow(stream, state) {
-      if (state.fatArrowAt) state.fatArrowAt = null;
-      var arrow = stream.string.indexOf('=>', stream.start);
-      if (arrow < 0) return;
-      if (isTS) {
-        // Try to skip TypeScript return type declarations after the arguments
-        var m = /:\s*(?:\w+(?:<[^>]*>|\[\])?|\{[^}]*\})\s*$/.exec(stream.string.slice(stream.start, arrow));
-        if (m) arrow = m.index;
-      }
-      var depth = 0,
-        sawSomething = false;
-      for (var pos = arrow - 1; pos >= 0; --pos) {
-        var ch = stream.string.charAt(pos);
-        var bracket = brackets.indexOf(ch);
-        if (bracket >= 0 && bracket < 3) {
-          if (!depth) {
-            ++pos;
-            break;
-          }
-          if (--depth == 0) {
-            if (ch == '(') sawSomething = true;
-            break;
-          }
-        } else if (bracket >= 3 && bracket < 6) {
-          ++depth;
-        } else if (wordRE.test(ch)) {
-          sawSomething = true;
-        } else if (/["'\/`]/.test(ch)) {
-          for (; ; --pos) {
-            if (pos == 0) return;
-            var next = stream.string.charAt(pos - 1);
-            if (next == ch && stream.string.charAt(pos - 2) != '\\') {
-              pos--;
-              break;
-            }
-          }
-        } else if (sawSomething && !depth) {
-          ++pos;
-          break;
-        }
-      }
-      if (sawSomething && !depth) state.fatArrowAt = pos;
-    }
-    // Parser
-    var atomicTypes = { atom: true, number: true, variable: true, string: true, regexp: true, this: true, import: true, 'jsonld-keyword': true };
-    function JSLexical(indented, column, type, align, prev, info) {
-      this.indented = indented;
-      this.column = column;
-      this.type = type;
-      this.prev = prev;
-      this.info = info;
-      if (align != null) this.align = align;
-    }
-    function inScope(state, varname) {
-      if (!trackScope) return false;
-      for (var v = state.localVars; v; v = v.next) if (v.name == varname) return true;
-      for (var cx = state.context; cx; cx = cx.prev) {
-        for (var v = cx.vars; v; v = v.next) if (v.name == varname) return true;
-      }
-    }
-    function parseJS(state, style, type, content, stream) {
-      var cc = state.cc;
-      // Communicate our context to the combinators.
-      // (Less wasteful than consing up a hundred closures on every call.)
-      cx.state = state;
-      cx.stream = stream;
-      (cx.marked = null), (cx.cc = cc);
-      cx.style = style;
-      if (!state.lexical.hasOwnProperty('align')) state.lexical.align = true;
-      while (true) {
-        var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
-        if (combinator(type, content)) {
-          while (cc.length && cc[cc.length - 1].lex) cc.pop()();
-          if (cx.marked) return cx.marked;
-          if (type == 'variable' && inScope(state, content)) return 'variable-2';
-          return style;
-        }
-      }
-    }
-    // Combinator utils
-    var cx = { state: null, column: null, marked: null, cc: null };
-    function pass() {
-      for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
-    }
-    function cont() {
-      pass.apply(null, arguments);
-      return true;
-    }
-    function inList(name, list) {
-      for (var v = list; v; v = v.next) if (v.name == name) return true;
-      return false;
-    }
-    function register(varname) {
-      var state = cx.state;
-      cx.marked = 'def';
-      if (!trackScope) return;
-      if (state.context) {
-        if (state.lexical.info == 'var' && state.context && state.context.block) {
-          // FIXME function decls are also not block scoped
-          var newContext = registerVarScoped(varname, state.context);
-          if (newContext != null) {
-            state.context = newContext;
-            return;
-          }
-        } else if (!inList(varname, state.localVars)) {
-          state.localVars = new Var(varname, state.localVars);
-          return;
-        }
-      }
-      // Fall through means this is global
-      if (parserConfig.globalVars && !inList(varname, state.globalVars)) state.globalVars = new Var(varname, state.globalVars);
-    }
-    function registerVarScoped(varname, context) {
-      if (!context) {
-        return null;
-      } else if (context.block) {
-        var inner = registerVarScoped(varname, context.prev);
-        if (!inner) return null;
-        if (inner == context.prev) return context;
-        return new Context(inner, context.vars, true);
-      } else if (inList(varname, context.vars)) {
-        return context;
-      } else {
-        return new Context(context.prev, new Var(varname, context.vars), false);
-      }
-    }
-    function isModifier(name) {
-      return name == 'public' || name == 'private' || name == 'protected' || name == 'abstract' || name == 'readonly';
-    }
-    // Combinators
-    function Context(prev, vars, block) {
-      this.prev = prev;
-      this.vars = vars;
-      this.block = block;
-    }
-    function Var(name, next) {
-      this.name = name;
-      this.next = next;
-    }
-    var defaultVars = new Var('this', new Var('arguments', null));
-    function pushcontext() {
-      cx.state.context = new Context(cx.state.context, cx.state.localVars, false);
-      cx.state.localVars = defaultVars;
-    }
-    function pushblockcontext() {
-      cx.state.context = new Context(cx.state.context, cx.state.localVars, true);
-      cx.state.localVars = null;
-    }
-    function popcontext() {
-      cx.state.localVars = cx.state.context.vars;
-      cx.state.context = cx.state.context.prev;
-    }
-    popcontext.lex = true;
-    function pushlex(type, info) {
-      var result = function () {
-        var state = cx.state,
-          indent = state.indented;
-        if (state.lexical.type == 'stat') indent = state.lexical.indented;
-        else for (var outer = state.lexical; outer && outer.type == ')' && outer.align; outer = outer.prev) indent = outer.indented;
-        state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
-      };
-      result.lex = true;
-      return result;
-    }
-    function poplex() {
-      var state = cx.state;
-      if (state.lexical.prev) {
-        if (state.lexical.type == ')') state.indented = state.lexical.indented;
-        state.lexical = state.lexical.prev;
-      }
-    }
-    poplex.lex = true;
-    function expect(wanted) {
-      function exp(type) {
-        if (type == wanted) return cont();
-        else if (wanted == ';' || type == '}' || type == ')' || type == ']') return pass();
-        else return cont(exp);
-      }
-      return exp;
-    }
-    function statement(type, value) {
-      if (type == 'var') return cont(pushlex('vardef', value), vardef, expect(';'), poplex);
-      if (type == 'keyword a') return cont(pushlex('form'), parenExpr, statement, poplex);
-      if (type == 'keyword b') return cont(pushlex('form'), statement, poplex);
-      if (type == 'keyword d') return cx.stream.match(/^\s*$/, false) ? cont() : cont(pushlex('stat'), maybeexpression, expect(';'), poplex);
-      if (type == 'debugger') return cont(expect(';'));
-      if (type == '{') return cont(pushlex('}'), pushblockcontext, block, poplex, popcontext);
-      if (type == ';') return cont();
-      if (type == 'if') {
-        if (cx.state.lexical.info == 'else' && cx.state.cc[cx.state.cc.length - 1] == poplex) cx.state.cc.pop()();
-        return cont(pushlex('form'), parenExpr, statement, poplex, maybeelse);
-      }
-      if (type == 'function') return cont(functiondef);
-      if (type == 'for') return cont(pushlex('form'), pushblockcontext, forspec, statement, popcontext, poplex);
-      if (type == 'class' || (isTS && value == 'interface')) {
-        cx.marked = 'keyword';
-        return cont(pushlex('form', type == 'class' ? type : value), className, poplex);
-      }
-      if (type == 'variable') {
-        if (isTS && value == 'declare') {
-          cx.marked = 'keyword';
-          return cont(statement);
-        } else if (isTS && (value == 'module' || value == 'enum' || value == 'type') && cx.stream.match(/^\s*\w/, false)) {
-          cx.marked = 'keyword';
-          if (value == 'enum') return cont(enumdef);
-          else if (value == 'type') return cont(typename, expect('operator'), typeexpr, expect(';'));
-          else return cont(pushlex('form'), pattern, expect('{'), pushlex('}'), block, poplex, poplex);
-        } else if (isTS && value == 'namespace') {
-          cx.marked = 'keyword';
-          return cont(pushlex('form'), expression, statement, poplex);
-        } else if (isTS && value == 'abstract') {
-          cx.marked = 'keyword';
-          return cont(statement);
-        } else {
-          return cont(pushlex('stat'), maybelabel);
-        }
-      }
-      if (type == 'switch') return cont(pushlex('form'), parenExpr, expect('{'), pushlex('}', 'switch'), pushblockcontext, block, poplex, poplex, popcontext);
-      if (type == 'case') return cont(expression, expect(':'));
-      if (type == 'default') return cont(expect(':'));
-      if (type == 'catch') return cont(pushlex('form'), pushcontext, maybeCatchBinding, statement, poplex, popcontext);
-      if (type == 'export') return cont(pushlex('stat'), afterExport, poplex);
-      if (type == 'import') return cont(pushlex('stat'), afterImport, poplex);
-      if (type == 'async') return cont(statement);
-      if (value == '@') return cont(expression, statement);
-      return pass(pushlex('stat'), expression, expect(';'), poplex);
-    }
-    function maybeCatchBinding(type) {
-      if (type == '(') return cont(funarg, expect(')'));
-    }
-    function expression(type, value) {
-      return expressionInner(type, value, false);
-    }
-    function expressionNoComma(type, value) {
-      return expressionInner(type, value, true);
-    }
-    function parenExpr(type) {
-      if (type != '(') return pass();
-      return cont(pushlex(')'), maybeexpression, expect(')'), poplex);
-    }
-    function expressionInner(type, value, noComma) {
-      if (cx.state.fatArrowAt == cx.stream.start) {
-        var body = noComma ? arrowBodyNoComma : arrowBody;
-        if (type == '(') return cont(pushcontext, pushlex(')'), commasep(funarg, ')'), poplex, expect('=>'), body, popcontext);
-        else if (type == 'variable') return pass(pushcontext, pattern, expect('=>'), body, popcontext);
-      }
-      var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
-      if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
-      if (type == 'function') return cont(functiondef, maybeop);
-      if (type == 'class' || (isTS && value == 'interface')) {
-        cx.marked = 'keyword';
-        return cont(pushlex('form'), classExpression, poplex);
-      }
-      if (type == 'keyword c' || type == 'async') return cont(noComma ? expressionNoComma : expression);
-      if (type == '(') return cont(pushlex(')'), maybeexpression, expect(')'), poplex, maybeop);
-      if (type == 'operator' || type == 'spread') return cont(noComma ? expressionNoComma : expression);
-      if (type == '[') return cont(pushlex(']'), arrayLiteral, poplex, maybeop);
-      if (type == '{') return contCommasep(objprop, '}', null, maybeop);
-      if (type == 'quasi') return pass(quasi, maybeop);
-      if (type == 'new') return cont(maybeTarget(noComma));
-      return cont();
-    }
-    function maybeexpression(type) {
-      if (type.match(/[;\}\)\],]/)) return pass();
-      return pass(expression);
-    }
-    function maybeoperatorComma(type, value) {
-      if (type == ',') return cont(maybeexpression);
-      return maybeoperatorNoComma(type, value, false);
-    }
-    function maybeoperatorNoComma(type, value, noComma) {
-      var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
-      var expr = noComma == false ? expression : expressionNoComma;
-      if (type == '=>') return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
-      if (type == 'operator') {
-        if (/\+\+|--/.test(value) || (isTS && value == '!')) return cont(me);
-        if (isTS && value == '<' && cx.stream.match(/^([^<>]|<[^<>]*>)*>\s*\(/, false)) return cont(pushlex('>'), commasep(typeexpr, '>'), poplex, me);
-        if (value == '?') return cont(expression, expect(':'), expr);
-        return cont(expr);
-      }
-      if (type == 'quasi') {
-        return pass(quasi, me);
-      }
-      if (type == ';') return;
-      if (type == '(') return contCommasep(expressionNoComma, ')', 'call', me);
-      if (type == '.') return cont(property, me);
-      if (type == '[') return cont(pushlex(']'), maybeexpression, expect(']'), poplex, me);
-      if (isTS && value == 'as') {
-        cx.marked = 'keyword';
-        return cont(typeexpr, me);
-      }
-      if (type == 'regexp') {
-        cx.state.lastType = cx.marked = 'operator';
-        cx.stream.backUp(cx.stream.pos - cx.stream.start - 1);
-        return cont(expr);
-      }
-    }
-    function quasi(type, value) {
-      if (type != 'quasi') return pass();
-      if (value.slice(value.length - 2) != '${') return cont(quasi);
-      return cont(maybeexpression, continueQuasi);
-    }
-    function continueQuasi(type) {
-      if (type == '}') {
-        cx.marked = 'string-2';
-        cx.state.tokenize = tokenQuasi;
-        return cont(quasi);
-      }
-    }
-    function arrowBody(type) {
-      findFatArrow(cx.stream, cx.state);
-      return pass(type == '{' ? statement : expression);
-    }
-    function arrowBodyNoComma(type) {
-      findFatArrow(cx.stream, cx.state);
-      return pass(type == '{' ? statement : expressionNoComma);
-    }
-    function maybeTarget(noComma) {
-      return function (type) {
-        if (type == '.') return cont(noComma ? targetNoComma : target);
-        else if (type == 'variable' && isTS) return cont(maybeTypeArgs, noComma ? maybeoperatorNoComma : maybeoperatorComma);
-        else return pass(noComma ? expressionNoComma : expression);
-      };
-    }
-    function target(_, value) {
-      if (value == 'target') {
-        cx.marked = 'keyword';
-        return cont(maybeoperatorComma);
-      }
-    }
-    function targetNoComma(_, value) {
-      if (value == 'target') {
-        cx.marked = 'keyword';
-        return cont(maybeoperatorNoComma);
-      }
-    }
-    function maybelabel(type) {
-      if (type == ':') return cont(poplex, statement);
-      return pass(maybeoperatorComma, expect(';'), poplex);
-    }
-    function property(type) {
-      if (type == 'variable') {
-        cx.marked = 'property';
-        return cont();
-      }
-    }
-    function objprop(type, value) {
-      if (type == 'async') {
-        cx.marked = 'property';
-        return cont(objprop);
-      } else if (type == 'variable' || cx.style == 'keyword') {
-        cx.marked = 'property';
-        if (value == 'get' || value == 'set') return cont(getterSetter);
-        var m; // Work around fat-arrow-detection complication for detecting typescript typed arrow params
-        if (isTS && cx.state.fatArrowAt == cx.stream.start && (m = cx.stream.match(/^\s*:\s*/, false))) cx.state.fatArrowAt = cx.stream.pos + m[0].length;
-        return cont(afterprop);
-      } else if (type == 'number' || type == 'string') {
-        cx.marked = jsonldMode ? 'property' : cx.style + ' property';
-        return cont(afterprop);
-      } else if (type == 'jsonld-keyword') {
-        return cont(afterprop);
-      } else if (isTS && isModifier(value)) {
-        cx.marked = 'keyword';
-        return cont(objprop);
-      } else if (type == '[') {
-        return cont(expression, maybetype, expect(']'), afterprop);
-      } else if (type == 'spread') {
-        return cont(expressionNoComma, afterprop);
-      } else if (value == '*') {
-        cx.marked = 'keyword';
-        return cont(objprop);
-      } else if (type == ':') {
-        return pass(afterprop);
-      }
-    }
-    function getterSetter(type) {
-      if (type != 'variable') return pass(afterprop);
-      cx.marked = 'property';
-      return cont(functiondef);
-    }
-    function afterprop(type) {
-      if (type == ':') return cont(expressionNoComma);
-      if (type == '(') return pass(functiondef);
-    }
-    function commasep(what, end, sep) {
-      function proceed(type, value) {
-        if (sep ? sep.indexOf(type) > -1 : type == ',') {
-          var lex = cx.state.lexical;
-          if (lex.info == 'call') lex.pos = (lex.pos || 0) + 1;
-          return cont(function (type, value) {
-            if (type == end || value == end) return pass();
-            return pass(what);
-          }, proceed);
-        }
-        if (type == end || value == end) return cont();
-        if (sep && sep.indexOf(';') > -1) return pass(what);
-        return cont(expect(end));
-      }
-      return function (type, value) {
-        if (type == end || value == end) return cont();
-        return pass(what, proceed);
-      };
-    }
-    function contCommasep(what, end, info) {
-      for (var i = 3; i < arguments.length; i++) cx.cc.push(arguments[i]);
-      return cont(pushlex(end, info), commasep(what, end), poplex);
-    }
-    function block(type) {
-      if (type == '}') return cont();
-      return pass(statement, block);
-    }
-    function maybetype(type, value) {
-      if (isTS) {
-        if (type == ':') return cont(typeexpr);
-        if (value == '?') return cont(maybetype);
-      }
-    }
-    function maybetypeOrIn(type, value) {
-      if (isTS && (type == ':' || value == 'in')) return cont(typeexpr);
-    }
-    function mayberettype(type) {
-      if (isTS && type == ':') {
-        if (cx.stream.match(/^\s*\w+\s+is\b/, false)) return cont(expression, isKW, typeexpr);
-        else return cont(typeexpr);
-      }
-    }
-    function isKW(_, value) {
-      if (value == 'is') {
-        cx.marked = 'keyword';
-        return cont();
-      }
-    }
-    function typeexpr(type, value) {
-      if (value == 'keyof' || value == 'typeof' || value == 'infer' || value == 'readonly') {
-        cx.marked = 'keyword';
-        return cont(value == 'typeof' ? expressionNoComma : typeexpr);
-      }
-      if (type == 'variable' || value == 'void') {
-        cx.marked = 'type';
-        return cont(afterType);
-      }
-      if (value == '|' || value == '&') return cont(typeexpr);
-      if (type == 'string' || type == 'number' || type == 'atom') return cont(afterType);
-      if (type == '[') return cont(pushlex(']'), commasep(typeexpr, ']', ','), poplex, afterType);
-      if (type == '{') return cont(pushlex('}'), typeprops, poplex, afterType);
-      if (type == '(') return cont(commasep(typearg, ')'), maybeReturnType, afterType);
-      if (type == '<') return cont(commasep(typeexpr, '>'), typeexpr);
-      if (type == 'quasi') {
-        return pass(quasiType, afterType);
-      }
-    }
-    function maybeReturnType(type) {
-      if (type == '=>') return cont(typeexpr);
-    }
-    function typeprops(type) {
-      if (type.match(/[\}\)\]]/)) return cont();
-      if (type == ',' || type == ';') return cont(typeprops);
-      return pass(typeprop, typeprops);
-    }
-    function typeprop(type, value) {
-      if (type == 'variable' || cx.style == 'keyword') {
-        cx.marked = 'property';
-        return cont(typeprop);
-      } else if (value == '?' || type == 'number' || type == 'string') {
-        return cont(typeprop);
-      } else if (type == ':') {
-        return cont(typeexpr);
-      } else if (type == '[') {
-        return cont(expect('variable'), maybetypeOrIn, expect(']'), typeprop);
-      } else if (type == '(') {
-        return pass(functiondecl, typeprop);
-      } else if (!type.match(/[;\}\)\],]/)) {
-        return cont();
-      }
-    }
-    function quasiType(type, value) {
-      if (type != 'quasi') return pass();
-      if (value.slice(value.length - 2) != '${') return cont(quasiType);
-      return cont(typeexpr, continueQuasiType);
-    }
-    function continueQuasiType(type) {
-      if (type == '}') {
-        cx.marked = 'string-2';
-        cx.state.tokenize = tokenQuasi;
-        return cont(quasiType);
-      }
-    }
-    function typearg(type, value) {
-      if ((type == 'variable' && cx.stream.match(/^\s*[?:]/, false)) || value == '?') return cont(typearg);
-      if (type == ':') return cont(typeexpr);
-      if (type == 'spread') return cont(typearg);
-      return pass(typeexpr);
-    }
-    function afterType(type, value) {
-      if (value == '<') return cont(pushlex('>'), commasep(typeexpr, '>'), poplex, afterType);
-      if (value == '|' || type == '.' || value == '&') return cont(typeexpr);
-      if (type == '[') return cont(typeexpr, expect(']'), afterType);
-      if (value == 'extends' || value == 'implements') {
-        cx.marked = 'keyword';
-        return cont(typeexpr);
-      }
-      if (value == '?') return cont(typeexpr, expect(':'), typeexpr);
-    }
-    function maybeTypeArgs(_, value) {
-      if (value == '<') return cont(pushlex('>'), commasep(typeexpr, '>'), poplex, afterType);
-    }
-    function typeparam() {
-      return pass(typeexpr, maybeTypeDefault);
-    }
-    function maybeTypeDefault(_, value) {
-      if (value == '=') return cont(typeexpr);
-    }
-    function vardef(_, value) {
-      if (value == 'enum') {
-        cx.marked = 'keyword';
-        return cont(enumdef);
-      }
-      return pass(pattern, maybetype, maybeAssign, vardefCont);
-    }
-    function pattern(type, value) {
-      if (isTS && isModifier(value)) {
-        cx.marked = 'keyword';
-        return cont(pattern);
-      }
-      if (type == 'variable') {
-        register(value);
-        return cont();
-      }
-      if (type == 'spread') return cont(pattern);
-      if (type == '[') return contCommasep(eltpattern, ']');
-      if (type == '{') return contCommasep(proppattern, '}');
-    }
-    function proppattern(type, value) {
-      if (type == 'variable' && !cx.stream.match(/^\s*:/, false)) {
-        register(value);
-        return cont(maybeAssign);
-      }
-      if (type == 'variable') cx.marked = 'property';
-      if (type == 'spread') return cont(pattern);
-      if (type == '}') return pass();
-      if (type == '[') return cont(expression, expect(']'), expect(':'), proppattern);
-      return cont(expect(':'), pattern, maybeAssign);
-    }
-    function eltpattern() {
-      return pass(pattern, maybeAssign);
-    }
-    function maybeAssign(_type, value) {
-      if (value == '=') return cont(expressionNoComma);
-    }
-    function vardefCont(type) {
-      if (type == ',') return cont(vardef);
-    }
-    function maybeelse(type, value) {
-      if (type == 'keyword b' && value == 'else') return cont(pushlex('form', 'else'), statement, poplex);
-    }
-    function forspec(type, value) {
-      if (value == 'await') return cont(forspec);
-      if (type == '(') return cont(pushlex(')'), forspec1, poplex);
-    }
-    function forspec1(type) {
-      if (type == 'var') return cont(vardef, forspec2);
-      if (type == 'variable') return cont(forspec2);
-      return pass(forspec2);
-    }
-    function forspec2(type, value) {
-      if (type == ')') return cont();
-      if (type == ';') return cont(forspec2);
-      if (value == 'in' || value == 'of') {
-        cx.marked = 'keyword';
-        return cont(expression, forspec2);
-      }
-      return pass(expression, forspec2);
-    }
-    function functiondef(type, value) {
-      if (value == '*') {
-        cx.marked = 'keyword';
-        return cont(functiondef);
-      }
-      if (type == 'variable') {
-        register(value);
-        return cont(functiondef);
-      }
-      if (type == '(') return cont(pushcontext, pushlex(')'), commasep(funarg, ')'), poplex, mayberettype, statement, popcontext);
-      if (isTS && value == '<') return cont(pushlex('>'), commasep(typeparam, '>'), poplex, functiondef);
-    }
-    function functiondecl(type, value) {
-      if (value == '*') {
-        cx.marked = 'keyword';
-        return cont(functiondecl);
-      }
-      if (type == 'variable') {
-        register(value);
-        return cont(functiondecl);
-      }
-      if (type == '(') return cont(pushcontext, pushlex(')'), commasep(funarg, ')'), poplex, mayberettype, popcontext);
-      if (isTS && value == '<') return cont(pushlex('>'), commasep(typeparam, '>'), poplex, functiondecl);
-    }
-    function typename(type, value) {
-      if (type == 'keyword' || type == 'variable') {
-        cx.marked = 'type';
-        return cont(typename);
-      } else if (value == '<') {
-        return cont(pushlex('>'), commasep(typeparam, '>'), poplex);
-      }
-    }
-    function funarg(type, value) {
-      if (value == '@') cont(expression, funarg);
-      if (type == 'spread') return cont(funarg);
-      if (isTS && isModifier(value)) {
-        cx.marked = 'keyword';
-        return cont(funarg);
-      }
-      if (isTS && type == 'this') return cont(maybetype, maybeAssign);
-      return pass(pattern, maybetype, maybeAssign);
-    }
-    function classExpression(type, value) {
-      // Class expressions may have an optional name.
-      if (type == 'variable') return className(type, value);
-      return classNameAfter(type, value);
-    }
-    function className(type, value) {
-      if (type == 'variable') {
-        register(value);
-        return cont(classNameAfter);
-      }
-    }
-    function classNameAfter(type, value) {
-      if (value == '<') return cont(pushlex('>'), commasep(typeparam, '>'), poplex, classNameAfter);
-      if (value == 'extends' || value == 'implements' || (isTS && type == ',')) {
-        if (value == 'implements') cx.marked = 'keyword';
-        return cont(isTS ? typeexpr : expression, classNameAfter);
-      }
-      if (type == '{') return cont(pushlex('}'), classBody, poplex);
-    }
-    function classBody(type, value) {
-      if (
-        type == 'async' ||
-        (type == 'variable' &&
-          (value == 'static' || value == 'get' || value == 'set' || (isTS && isModifier(value))) &&
-          cx.stream.match(/^\s+[\w$\xa1-\uffff]/, false))
-      ) {
-        cx.marked = 'keyword';
-        return cont(classBody);
-      }
-      if (type == 'variable' || cx.style == 'keyword') {
-        cx.marked = 'property';
-        return cont(classfield, classBody);
-      }
-      if (type == 'number' || type == 'string') return cont(classfield, classBody);
-      if (type == '[') return cont(expression, maybetype, expect(']'), classfield, classBody);
-      if (value == '*') {
-        cx.marked = 'keyword';
-        return cont(classBody);
-      }
-      if (isTS && type == '(') return pass(functiondecl, classBody);
-      if (type == ';' || type == ',') return cont(classBody);
-      if (type == '}') return cont();
-      if (value == '@') return cont(expression, classBody);
-    }
-    function classfield(type, value) {
-      if (value == '!') return cont(classfield);
-      if (value == '?') return cont(classfield);
-      if (type == ':') return cont(typeexpr, maybeAssign);
-      if (value == '=') return cont(expressionNoComma);
-      var context = cx.state.lexical.prev,
-        isInterface = context && context.info == 'interface';
-      return pass(isInterface ? functiondecl : functiondef);
-    }
-    function afterExport(type, value) {
-      if (value == '*') {
-        cx.marked = 'keyword';
-        return cont(maybeFrom, expect(';'));
-      }
-      if (value == 'default') {
-        cx.marked = 'keyword';
-        return cont(expression, expect(';'));
-      }
-      if (type == '{') return cont(commasep(exportField, '}'), maybeFrom, expect(';'));
-      return pass(statement);
-    }
-    function exportField(type, value) {
-      if (value == 'as') {
-        cx.marked = 'keyword';
-        return cont(expect('variable'));
-      }
-      if (type == 'variable') return pass(expressionNoComma, exportField);
-    }
-    function afterImport(type) {
-      if (type == 'string') return cont();
-      if (type == '(') return pass(expression);
-      if (type == '.') return pass(maybeoperatorComma);
-      return pass(importSpec, maybeMoreImports, maybeFrom);
-    }
-    function importSpec(type, value) {
-      if (type == '{') return contCommasep(importSpec, '}');
-      if (type == 'variable') register(value);
-      if (value == '*') cx.marked = 'keyword';
-      return cont(maybeAs);
-    }
-    function maybeMoreImports(type) {
-      if (type == ',') return cont(importSpec, maybeMoreImports);
-    }
-    function maybeAs(_type, value) {
-      if (value == 'as') {
-        cx.marked = 'keyword';
-        return cont(importSpec);
-      }
-    }
-    function maybeFrom(_type, value) {
-      if (value == 'from') {
-        cx.marked = 'keyword';
-        return cont(expression);
-      }
-    }
-    function arrayLiteral(type) {
-      if (type == ']') return cont();
-      return pass(commasep(expressionNoComma, ']'));
-    }
-    function enumdef() {
-      return pass(pushlex('form'), pattern, expect('{'), pushlex('}'), commasep(enummember, '}'), poplex, poplex);
-    }
-    function enummember() {
-      return pass(pattern, maybeAssign);
-    }
-    function isContinuedStatement(state, textAfter) {
-      return state.lastType == 'operator' || state.lastType == ',' || isOperatorChar.test(textAfter.charAt(0)) || /[,.]/.test(textAfter.charAt(0));
-    }
-    function expressionAllowed(stream, state, backUp) {
-      return (
-        (state.tokenize == tokenBase && /^(?:operator|sof|keyword [bcd]|case|new|export|default|spread|[\[{}\(,;:]|=>)$/.test(state.lastType)) ||
-        (state.lastType == 'quasi' && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
-      );
-    }
-    // Interface
-    return {
-      startState: function (basecolumn) {
-        var state = {
-          tokenize: tokenBase,
-          lastType: 'sof',
-          cc: [],
-          lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, 'block', false),
-          localVars: parserConfig.localVars,
-          context: parserConfig.localVars && new Context(null, null, false),
-          indented: basecolumn || 0,
-        };
-        if (parserConfig.globalVars && typeof parserConfig.globalVars == 'object') state.globalVars = parserConfig.globalVars;
-        return state;
-      },
-      token: function (stream, state) {
-        if (stream.sol()) {
-          if (!state.lexical.hasOwnProperty('align')) state.lexical.align = false;
-          state.indented = stream.indentation();
-          findFatArrow(stream, state);
-        }
-        if (state.tokenize != tokenComment && stream.eatSpace()) return null;
-        var style = state.tokenize(stream, state);
-        if (type == 'comment') return style;
-        state.lastType = type == 'operator' && (content == '++' || content == '--') ? 'incdec' : type;
-        return parseJS(state, style, type, content, stream);
-      },
-      indent: function (state, textAfter) {
-        if (state.tokenize == tokenComment || state.tokenize == tokenQuasi) return CodeMirror.Pass;
-        if (state.tokenize != tokenBase) return 0;
-        var firstChar = textAfter && textAfter.charAt(0),
-          lexical = state.lexical,
-          top;
-        // Kludge to prevent 'maybelse' from blocking lexical scope pops
-        if (!/^\s*else\b/.test(textAfter))
-          for (var i = state.cc.length - 1; i >= 0; --i) {
-            var c = state.cc[i];
-            if (c == poplex) lexical = lexical.prev;
-            else if (c != maybeelse && c != popcontext) break;
-          }
-        while (
-          (lexical.type == 'stat' || lexical.type == 'form') &&
-          (firstChar == '}' ||
-            ((top = state.cc[state.cc.length - 1]) && (top == maybeoperatorComma || top == maybeoperatorNoComma) && !/^[,\.=+\-*:?[\(]/.test(textAfter)))
-        )
-          lexical = lexical.prev;
-        if (statementIndent && lexical.type == ')' && lexical.prev.type == 'stat') lexical = lexical.prev;
-        var type = lexical.type,
-          closing = firstChar == type;
-        if (type == 'vardef') return lexical.indented + (state.lastType == 'operator' || state.lastType == ',' ? lexical.info.length + 1 : 0);
-        else if (type == 'form' && firstChar == '{') return lexical.indented;
-        else if (type == 'form') return lexical.indented + indentUnit;
-        else if (type == 'stat') return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
-        else if (lexical.info == 'switch' && !closing && parserConfig.doubleIndentSwitch != false)
-          return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
-        else if (lexical.align) return lexical.column + (closing ? 0 : 1);
-        else return lexical.indented + (closing ? 0 : indentUnit);
-      },
-      electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
-      blockCommentStart: jsonMode ? null : '/*',
-      blockCommentEnd: jsonMode ? null : '*/',
-      blockCommentContinue: jsonMode ? null : ' * ',
-      lineComment: jsonMode ? null : '//',
-      fold: 'brace',
-      closeBrackets: '()[]{}\'\'""``',
-      helperType: jsonMode ? 'json' : 'javascript',
-      jsonldMode: jsonldMode,
-      jsonMode: jsonMode,
-      expressionAllowed: expressionAllowed,
-      skipExpression: function (state) {
-        parseJS(state, 'atom', 'atom', 'true', new CodeMirror.StringStream('', 2, null));
-      },
-    };
-  });
-  CodeMirror.registerHelper('wordChars', 'javascript', /[\w$]/);
-  CodeMirror.defineMIME('text/javascript', 'javascript');
-  CodeMirror.defineMIME('text/ecmascript', 'javascript');
-  CodeMirror.defineMIME('application/javascript', 'javascript');
-  CodeMirror.defineMIME('application/x-javascript', 'javascript');
-  CodeMirror.defineMIME('application/ecmascript', 'javascript');
-  CodeMirror.defineMIME('application/json', { name: 'javascript', json: true });
-  CodeMirror.defineMIME('application/x-json', { name: 'javascript', json: true });
-  CodeMirror.defineMIME('application/manifest+json', { name: 'javascript', json: true });
-  CodeMirror.defineMIME('application/ld+json', { name: 'javascript', jsonld: true });
-  CodeMirror.defineMIME('text/typescript', { name: 'javascript', typescript: true });
-  CodeMirror.defineMIME('application/typescript', { name: 'javascript', typescript: true });
-});

assets/js/codemirror@5.63.1.min.js DELETED Viewed

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Qn(e){var t=e.doc,n=Zn(e);t.iter(function(e){var t=n(e);t!=e.height&&qe(e,t)})}function Jn(e,t,n,r){var i=e.display;if(!n&&"true"==Ne(t).getAttribute("cm-not-content"))return null;var o,i=i.lineSpace.getBoundingClientRect();try{o=t.clientX-i.left,s=t.clientY-i.top}catch(e){return null}var l,s=Gn(e,o,s);return r&&0<s.xRel&&(l=Ye(e.doc,s.line).text).length==s.ch&&(l=E(l,l.length,e.options.tabSize)-l.length,s=tt(s.line,Math.max(0,Math.round((o-vn(e.display).left)/_n(e.display))-l))),s}function er(e,t){if(t>=e.display.viewTo)return null;if((t-=e.display.viewFrom)<0)return null;for(var n=e.display.view,r=0;r<n.length;r++)if((t-=n[r].size)<0)return r}function tr(e,t,n,r){null==t&&(t=e.doc.first),null==n&&(n=e.doc.first+e.doc.size);var i,o,l=e.display;(r=r||0)&&n<l.viewTo&&(null==l.updateLineNumbers||l.updateLineNumbers>t)&&(l.updateLineNumbers=t),e.curOp.viewChanged=!0,t>=l.viewTo?St&&Rt(e.doc,t)<l.viewTo&&rr(e):n<=l.viewFrom?St&&zt(e.doc,n+r)>l.viewFrom?rr(e):(l.viewFrom+=r,l.viewTo+=r):t<=l.viewFrom&&n>=l.viewTo?rr(e):t<=l.viewFrom?(i=ir(e,n,n+r,1))?(l.view=l.view.slice(i.index),l.viewFrom=i.lineN,l.viewTo+=r):rr(e):n>=l.viewTo?(o=ir(e,t,t,-1))?(l.view=l.view.slice(0,o.index),l.viewTo=o.lineN):rr(e):(i=ir(e,t,t,-1),o=ir(e,n,n+r,1),i&&o?(l.view=l.view.slice(0,i.index).concat(Jt(e,i.lineN,o.lineN)).concat(l.view.slice(o.index)),l.viewTo+=r):rr(e));e=l.externalMeasured;e&&(n<e.lineN?e.lineN+=r:t<e.lineN+e.size&&(l.externalMeasured=null))}function nr(e,t,n){e.curOp.viewChanged=!0;var r=e.display,i=e.display.externalMeasured;i&&t>=i.lineN&&t<i.lineN+i.size&&(r.externalMeasured=null),t<r.viewFrom||t>=r.viewTo||(null==(t=r.view[er(e,t)]).node||-1==R(t=t.changes||(t.changes=[]),n)&&t.push(n))}function 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a=e.from(),n=e.to();a.line==n.line?s(a.line,a.ch,n.ch):(r=Ye(o,a.line),e=Ye(o,n.line),e=It(r)==It(e),r=s(a.line,a.ch,e?r.text.length+1:null).end,n=s(n.line,e?0:null,n.ch).start,e&&(r.top<n.top-2?(T(r.right,r.top,null,r.bottom),T(S,n.top,n.left,n.bottom)):T(r.right,r.top,n.left-r.right,r.bottom)),r.bottom<n.top&&T(S,r.bottom,null,n.top));t.appendChild(l)}(e,n,s)));return o}function ar(e,t,n){var r=Rn(e,t,"div",null,null,!e.options.singleCursorHeightPerLine),i=n.appendChild(M("div"," ","CodeMirror-cursor"));i.style.left=r.left+"px",i.style.top=r.top+"px",i.style.height=Math.max(0,r.bottom-r.top)*e.options.cursorHeight+"px",!/\bcm-fat-cursor\b/.test(e.getWrapperElement().className)||0<(t=In(e,t,"div",null,null)).right-t.left&&(i.style.width=t.right-t.left+"px"),r.other&&((n=n.appendChild(M("div"," ","CodeMirror-cursor CodeMirror-secondarycursor"))).style.display="",n.style.left=r.other.left+"px",n.style.top=r.other.top+"px",n.style.height=.85*(r.other.bottom-r.other.top)+"px")}function ur(e,t){return e.top-t.top||e.left-t.left}function cr(e){var t,n;e.state.focused&&(t=e.display,clearInterval(t.blinker),n=!0,t.cursorDiv.style.visibility="",0<e.options.cursorBlinkRate?t.blinker=setInterval(function(){e.hasFocus()||pr(e),t.cursorDiv.style.visibility=(n=!n)?"":"hidden"},e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden"))}function hr(e){e.hasFocus()||(e.display.input.focus(),e.state.focused||fr(e))}function dr(e){e.state.delayingBlurEvent=!0,setTimeout(function(){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1,e.state.focused&&pr(e))},100)}function fr(e,t){e.state.delayingBlurEvent&&!e.state.draggingText&&(e.state.delayingBlurEvent=!1),"nocursor"!=e.options.readOnly&&(e.state.focused||(be(e,"focus",e,t),e.state.focused=!0,A(e.display.wrapper,"CodeMirror-focused"),e.curOp||e.display.selForContextMenu==e.doc.sel||(e.display.input.reset(),f&&setTimeout(function(){return e.display.input.reset(!0)},20)),e.display.input.receivedFocus()),cr(e))}function pr(e,t){e.state.delayingBlurEvent||(e.state.focused&&(be(e,"blur",e,t),e.state.focused=!1,S(e.display.wrapper,"CodeMirror-focused")),clearInterval(e.display.blinker),setTimeout(function(){e.state.focused||(e.display.shift=!1)},150))}function gr(e){for(var t=e.display,n=t.lineDiv.offsetTop,r=Math.max(0,t.scroller.getBoundingClientRect().top),i=t.lineDiv.getBoundingClientRect().top,o=0,l=0;l<t.view.length;l++){var s,a=t.view[l],u=e.options.lineWrapping,c=void 0,h=0;if(!a.hidden){i+=a.line.height,w&&v<8?(c=(s=a.node.offsetTop+a.node.offsetHeight)-n,n=s):(c=(d=a.node.getBoundingClientRect()).bottom-d.top,!u&&a.text.firstChild&&(h=a.text.firstChild.getBoundingClientRect().right-d.left-1));var d=a.line.height-c;if((.005<d||d<-.005)&&(i<r&&(o-=d),qe(a.line,c),mr(a.line),a.rest))for(var f=0;f<a.rest.length;f++)mr(a.rest[f]);h>e.display.sizerWidth&&((h=Math.ceil(h/_n(e.display)))>e.display.maxLineLength&&(e.display.maxLineLength=h,e.display.maxLine=a.line,e.display.maxLineChanged=!0))}}2<Math.abs(o)&&(t.scroller.scrollTop+=o)}function mr(e){if(e.widgets)for(var t=0;t<e.widgets.length;++t){var n=e.widgets[t],r=n.node.parentNode;r&&(n.height=r.offsetHeight)}}function vr(e,t,n){var r=n&&null!=n.top?Math.max(0,n.top):e.scroller.scrollTop,r=Math.floor(r-gn(e)),i=n&&null!=n.bottom?n.bottom:r+e.wrapper.clientHeight,o=Qe(t,r),r=Qe(t,i);return n&&n.ensure&&(i=n.ensure.from.line,n=n.ensure.to.line,i<o?r=Qe(t,Gt(Ye(t,o=i))+e.wrapper.clientHeight):Math.min(n,t.lastLine())>=r&&(o=Qe(t,Gt(Ye(t,n))-e.wrapper.clientHeight),r=n)),{from:o,to:Math.max(r,o+1)}}function yr(e,t){var n=e.display,r=Yn(e.display);t.top<0&&(t.top=0);var i=(e.curOp&&null!=e.curOp.scrollTop?e.curOp:n.scroller).scrollTop,o=wn(e),l={};t.bottom-t.top>o&&(t.bottom=t.top+o);var s=e.doc.height+mn(n),a=t.top<r,r=t.bottom>s-r;t.top<i?l.scrollTop=a?0:t.top:t.bottom>i+o&&((u=Math.min(t.top,(r?s:t.bottom)-o))!=i&&(l.scrollTop=u));var i=e.options.fixedGutter?0:n.gutters.offsetWidth,u=e.curOp&&null!=e.curOp.scrollLeft?e.curOp.scrollLeft:n.scroller.scrollLeft-i,e=bn(e)-n.gutters.offsetWidth,n=t.right-t.left>e;return n&&(t.right=t.left+e),t.left<10?l.scrollLeft=0:t.left<u?l.scrollLeft=Math.max(0,t.left+i-(n?0:10)):t.right>e+u-3&&(l.scrollLeft=t.right+(n?0:10)-e),l}function br(e,t){null!=t&&(Cr(e),e.curOp.scrollTop=(null==e.curOp.scrollTop?e.doc:e.curOp).scrollTop+t)}function wr(e){Cr(e);var t=e.getCursor();e.curOp.scrollToPos={from:t,to:t,margin:e.options.cursorScrollMargin}}function xr(e,t,n){null==t&&null==n||Cr(e),null!=t&&(e.curOp.scrollLeft=t),null!=n&&(e.curOp.scrollTop=n)}function Cr(e){var t=e.curOp.scrollToPos;t&&(e.curOp.scrollToPos=null,Sr(e,zn(e,t.from),zn(e,t.to),t.margin))}function Sr(e,t,n,r){r=yr(e,{left:Math.min(t.left,n.left),top:Math.min(t.top,n.top)-r,right:Math.max(t.right,n.right),bottom:Math.max(t.bottom,n.bottom)+r});xr(e,r.scrollLeft,r.scrollTop)}function Lr(e,t){Math.abs(e.doc.scrollTop-t)<2||(d||Kr(e,{top:t}),kr(e,t,!0),d&&Kr(e),zr(e,100))}function kr(e,t,n){t=Math.max(0,Math.min(e.display.scroller.scrollHeight-e.display.scroller.clientHeight,t)),e.display.scroller.scrollTop==t&&!n||(e.doc.scrollTop=t,e.display.scrollbars.setScrollTop(t),e.display.scroller.scrollTop!=t&&(e.display.scroller.scrollTop=t))}function Tr(e,t,n,r){t=Math.max(0,Math.min(t,e.display.scroller.scrollWidth-e.display.scroller.clientWidth)),(n?t==e.doc.scrollLeft:Math.abs(e.doc.scrollLeft-t)<2)&&!r||(e.doc.scrollLeft=t,Yr(e),e.display.scroller.scrollLeft!=t&&(e.display.scroller.scrollLeft=t),e.display.scrollbars.setScrollLeft(t))}function Mr(e){var t=e.display,n=t.gutters.offsetWidth,r=Math.round(e.doc.height+mn(e.display));return{clientHeight:t.scroller.clientHeight,viewHeight:t.wrapper.clientHeight,scrollWidth:t.scroller.scrollWidth,clientWidth:t.scroller.clientWidth,viewWidth:t.wrapper.clientWidth,barLeft:e.options.fixedGutter?n:0,docHeight:r,scrollHeight:r+yn(e)+t.barHeight,nativeBarWidth:t.nativeBarWidth,gutterWidth:n}}e=function(e,t,n){this.cm=n;var r=this.vert=M("div",[M("div",null,null,"min-width: 1px")],"CodeMirror-vscrollbar"),i=this.horiz=M("div",[M("div",null,null,"height: 100%; min-height: 1px")],"CodeMirror-hscrollbar");r.tabIndex=i.tabIndex=-1,e(r),e(i),me(r,"scroll",function(){r.clientHeight&&t(r.scrollTop,"vertical")}),me(i,"scroll",function(){i.clientWidth&&t(i.scrollLeft,"horizontal")}),this.checkedZeroWidth=!1,w&&v<8&&(this.horiz.style.minHeight=this.vert.style.minWidth="18px")};e.prototype.update=function(e){var t,n=e.scrollWidth>e.clientWidth+1,r=e.scrollHeight>e.clientHeight+1,i=e.nativeBarWidth;return r?(this.vert.style.display="block",this.vert.style.bottom=n?i+"px":"0",t=e.viewHeight-(n?i:0),this.vert.firstChild.style.height=Math.max(0,e.scrollHeight-e.clientHeight+t)+"px"):(this.vert.style.display="",this.vert.firstChild.style.height="0"),n?(this.horiz.style.display="block",this.horiz.style.right=r?i+"px":"0",this.horiz.style.left=e.barLeft+"px",t=e.viewWidth-e.barLeft-(r?i:0),this.horiz.firstChild.style.width=Math.max(0,e.scrollWidth-e.clientWidth+t)+"px"):(this.horiz.style.display="",this.horiz.firstChild.style.width="0"),!this.checkedZeroWidth&&0<e.clientHeight&&(0==i&&this.zeroWidthHack(),this.checkedZeroWidth=!0),{right:r?i:0,bottom:n?i:0}},e.prototype.setScrollLeft=function(e){this.horiz.scrollLeft!=e&&(this.horiz.scrollLeft=e),this.disableHoriz&&this.enableZeroWidthBar(this.horiz,this.disableHoriz,"horiz")},e.prototype.setScrollTop=function(e){this.vert.scrollTop!=e&&(this.vert.scrollTop=e),this.disableVert&&this.enableZeroWidthBar(this.vert,this.disableVert,"vert")},e.prototype.zeroWidthHack=function(){this.horiz.style.height=this.vert.style.width=g&&!l?"12px":"18px",this.horiz.style.pointerEvents=this.vert.style.pointerEvents="none",this.disableHoriz=new I,this.disableVert=new I},e.prototype.enableZeroWidthBar=function(n,r,i){n.style.pointerEvents="auto",r.set(1e3,function e(){var t=n.getBoundingClientRect();("vert"==i?document.elementFromPoint(t.right-1,(t.top+t.bottom)/2):document.elementFromPoint((t.right+t.left)/2,t.bottom-1))!=n?n.style.pointerEvents="none":r.set(1e3,e)})},e.prototype.clear=function(){var e=this.horiz.parentNode;e.removeChild(this.horiz),e.removeChild(this.vert)};r=function(){};function Nr(e,t){t=t||Mr(e);var n=e.display.barWidth,r=e.display.barHeight;Or(e,t);for(var i=0;i<4&&n!=e.display.barWidth||r!=e.display.barHeight;i++)n!=e.display.barWidth&&e.options.lineWrapping&&gr(e),Or(e,Mr(e)),n=e.display.barWidth,r=e.display.barHeight}function Or(e,t){var n=e.display,r=n.scrollbars.update(t);n.sizer.style.paddingRight=(n.barWidth=r.right)+"px",n.sizer.style.paddingBottom=(n.barHeight=r.bottom)+"px",n.heightForcer.style.borderBottom=r.bottom+"px solid transparent",r.right&&r.bottom?(n.scrollbarFiller.style.display="block",n.scrollbarFiller.style.height=r.bottom+"px",n.scrollbarFiller.style.width=r.right+"px"):n.scrollbarFiller.style.display="",r.bottom&&e.options.coverGutterNextToScrollbar&&e.options.fixedGutter?(n.gutterFiller.style.display="block",n.gutterFiller.style.height=r.bottom+"px",n.gutterFiller.style.width=t.gutterWidth+"px"):n.gutterFiller.style.display=""}r.prototype.update=function(){return{bottom:0,right:0}},r.prototype.setScrollLeft=function(){},r.prototype.setScrollTop=function(){},r.prototype.clear=function(){};var Ar={native:e,null:r};function Dr(n){n.display.scrollbars&&(n.display.scrollbars.clear(),n.display.scrollbars.addClass&&S(n.display.wrapper,n.display.scrollbars.addClass)),n.display.scrollbars=new Ar[n.options.scrollbarStyle](function(e){n.display.wrapper.insertBefore(e,n.display.scrollbarFiller),me(e,"mousedown",function(){n.state.focused&&setTimeout(function(){return n.display.input.focus()},0)}),e.setAttribute("cm-not-content","true")},function(e,t){("horizontal"==t?Tr:Lr)(n,e)},n),n.display.scrollbars.addClass&&A(n.display.wrapper,n.display.scrollbars.addClass)}var Wr=0;function Hr(e){e.curOp={cm:e,viewChanged:!1,startHeight:e.doc.height,forceUpdate:!1,updateInput:0,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++Wr,markArrays:null},e=e.curOp,en?en.ops.push(e):e.ownsGroup=en={ops:[e],delayedCallbacks:[]}}function Fr(e){e=e.curOp;e&&tn(e,function(e){for(var t=0;t<e.ops.length;t++)e.ops[t].cm.curOp=null;!function(e){for(var t=e.ops,n=0;n<t.length;n++)!function(e){var t=e.cm,n=t.display;(function(e){var t=e.display;!t.scrollbarsClipped&&t.scroller.offsetWidth&&(t.nativeBarWidth=t.scroller.offsetWidth-t.scroller.clientWidth,t.heightForcer.style.height=yn(e)+"px",t.sizer.style.marginBottom=-t.nativeBarWidth+"px",t.sizer.style.borderRightWidth=yn(e)+"px",t.scrollbarsClipped=!0)})(t),e.updateMaxLine&&Vt(t);e.mustUpdate=e.viewChanged||e.forceUpdate||null!=e.scrollTop||e.scrollToPos&&(e.scrollToPos.from.line<n.viewFrom||e.scrollToPos.to.line>=n.viewTo)||n.maxLineChanged&&t.options.lineWrapping,e.update=e.mustUpdate&&new Gr(t,e.mustUpdate&&{top:e.scrollTop,ensure:e.scrollToPos},e.forceUpdate)}(t[n]);for(var r=0;r<t.length;r++)!function(e){e.updatedDisplay=e.mustUpdate&&Ur(e.cm,e.update)}(t[r]);for(var i=0;i<t.length;i++)!function(e){var t=e.cm,n=t.display;e.updatedDisplay&&gr(t);e.barMeasure=Mr(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=Cn(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+yn(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-bn(t)));(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection())}(t[i]);for(var o=0;o<t.length;o++)!function(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLeft<t.doc.scrollLeft&&Tr(t,Math.min(t.display.scroller.scrollLeft,e.maxScrollLeft),!0),t.display.maxLineChanged=!1);var n=e.focus&&e.focus==O();e.preparedSelection&&t.display.input.showSelection(e.preparedSelection,n);!e.updatedDisplay&&e.startHeight==t.doc.height||Nr(t,e.barMeasure);e.updatedDisplay&&Xr(t,e.barMeasure);e.selectionChanged&&cr(t);t.state.focused&&e.updateInput&&t.display.input.reset(e.typing);n&&hr(e.cm)}(t[o]);for(var l=0;l<t.length;l++)!function(e){var t=e.cm,n=t.display,r=t.doc;e.updatedDisplay&&Vr(t,e.update);null==n.wheelStartX||null==e.scrollTop&&null==e.scrollLeft&&!e.scrollToPos||(n.wheelStartX=n.wheelStartY=null);null!=e.scrollTop&&kr(t,e.scrollTop,e.forceScroll);null!=e.scrollLeft&&Tr(t,e.scrollLeft,!0,!0);{var i;e.scrollToPos&&(i=function(e,t,n,r){null==r&&(r=0),e.options.lineWrapping||t!=n||(n="before"==t.sticky?tt(t.line,t.ch+1,"before"):t,t=t.ch?tt(t.line,"before"==t.sticky?t.ch-1:t.ch,"after"):t);for(var i=0;i<5;i++){var o,l=!1,s=Rn(e,t),a=n&&n!=t?Rn(e,n):s,u=yr(e,o={left:Math.min(s.left,a.left),top:Math.min(s.top,a.top)-r,right:Math.max(s.left,a.left),bottom:Math.max(s.bottom,a.bottom)+r}),s=e.doc.scrollTop,a=e.doc.scrollLeft;if(null!=u.scrollTop&&(Lr(e,u.scrollTop),1<Math.abs(e.doc.scrollTop-s)&&(l=!0)),null!=u.scrollLeft&&(Tr(e,u.scrollLeft),1<Math.abs(e.doc.scrollLeft-a)&&(l=!0)),!l)break}return o}(t,at(r,e.scrollToPos.from),at(r,e.scrollToPos.to),e.scrollToPos.margin),function(e,t){var n,r,i;we(e,"scrollCursorIntoView")||(r=(n=e.display).sizer.getBoundingClientRect(),i=null,t.top+r.top<0?i=!0:t.bottom+r.top>(window.innerHeight||document.documentElement.clientHeight)&&(i=!1),null==i||u||(t=M("div","",null,"position: absolute;\n top: "+(t.top-n.viewOffset-gn(e.display))+"px;\n height: "+(t.bottom-t.top+yn(e)+n.barHeight)+"px;\n left: "+t.left+"px; width: "+Math.max(2,t.right-t.left)+"px;"),e.display.lineSpace.appendChild(t),t.scrollIntoView(i),e.display.lineSpace.removeChild(t)))}(t,i))}var o=e.maybeHiddenMarkers,l=e.maybeUnhiddenMarkers;if(o)for(var s=0;s<o.length;++s)o[s].lines.length||be(o[s],"hide");if(l)for(var a=0;a<l.length;++a)l[a].lines.length&&be(l[a],"unhide");n.wrapper.offsetHeight&&(r.scrollTop=t.display.scroller.scrollTop);e.changeObjs&&be(t,"changes",t,e.changeObjs);e.update&&e.update.finish()}(t[l])}(e)})}function Pr(e,t){if(e.curOp)return t();Hr(e);try{return t()}finally{Fr(e)}}function Er(e,t){return function(){if(e.curOp)return t.apply(e,arguments);Hr(e);try{return t.apply(e,arguments)}finally{Fr(e)}}}function Ir(e){return function(){if(this.curOp)return e.apply(this,arguments);Hr(this);try{return e.apply(this,arguments)}finally{Fr(this)}}}function Rr(t){return function(){var e=this.cm;if(!e||e.curOp)return t.apply(this,arguments);Hr(e);try{return t.apply(this,arguments)}finally{Fr(e)}}}function zr(e,t){e.doc.highlightFrontier<e.display.viewTo&&e.state.highlight.set(t,F(Br,e))}function Br(l){var s,a,u,c=l.doc;c.highlightFrontier>=l.display.viewTo||(s=+new Date+l.options.workTime,a=pt(l,c.highlightFrontier),u=[],c.iter(a.line,Math.min(c.first+c.size,l.display.viewTo+500),function(e){if(a.line>=l.display.viewFrom){var t=e.styles,n=e.text.length>l.options.maxHighlightLength?Ve(c.mode,a.state):null,r=dt(l,e,a,!0);n&&(a.state=n),e.styles=r.styles;n=e.styleClasses,r=r.classes;r?e.styleClasses=r:n&&(e.styleClasses=null);for(var i=!t||t.length!=e.styles.length||n!=r&&(!n||!r||n.bgClass!=r.bgClass||n.textClass!=r.textClass),o=0;!i&&o<t.length;++o)i=t[o]!=e.styles[o];i&&u.push(a.line),e.stateAfter=a.save(),a.nextLine()}else e.text.length<=l.options.maxHighlightLength&&gt(l,e.text,a),e.stateAfter=a.line%5==0?a.save():null,a.nextLine();if(+new Date>s)return zr(l,l.options.workDelay),!0}),c.highlightFrontier=a.line,c.modeFrontier=Math.max(c.modeFrontier,a.line),u.length&&Pr(l,function(){for(var e=0;e<u.length;e++)nr(l,u[e],"text")}))}var Gr=function(e,t,n){var r=e.display;this.viewport=t,this.visible=vr(r,e.doc,t),this.editorIsHidden=!r.wrapper.offsetWidth,this.wrapperHeight=r.wrapper.clientHeight,this.wrapperWidth=r.wrapper.clientWidth,this.oldDisplayWidth=bn(e),this.force=n,this.dims=$n(e),this.events=[]};function Ur(e,t){var n=e.display,r=e.doc;if(t.editorIsHidden)return rr(e),!1;if(!t.force&&t.visible.from>=n.viewFrom&&t.visible.to<=n.viewTo&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo)&&n.renderedView==n.view&&0==or(e))return!1;_r(e)&&(rr(e),t.dims=$n(e));var i=r.first+r.size,o=Math.max(t.visible.from-e.options.viewportMargin,r.first),l=Math.min(i,t.visible.to+e.options.viewportMargin);n.viewFrom<o&&o-n.viewFrom<20&&(o=Math.max(r.first,n.viewFrom)),n.viewTo>l&&n.viewTo-l<20&&(l=Math.min(i,n.viewTo)),St&&(o=Rt(e.doc,o),l=zt(e.doc,l));var s=o!=n.viewFrom||l!=n.viewTo||n.lastWrapHeight!=t.wrapperHeight||n.lastWrapWidth!=t.wrapperWidth;r=o,i=l,0==(l=(o=e).display).view.length||r>=l.viewTo||i<=l.viewFrom?(l.view=Jt(o,r,i),l.viewFrom=r):(l.viewFrom>r?l.view=Jt(o,r,l.viewFrom).concat(l.view):l.viewFrom<r&&(l.view=l.view.slice(er(o,r))),l.viewFrom=r,l.viewTo<i?l.view=l.view.concat(Jt(o,l.viewTo,i)):l.viewTo>i&&(l.view=l.view.slice(0,er(o,i)))),l.viewTo=i,n.viewOffset=Gt(Ye(e.doc,n.viewFrom)),e.display.mover.style.top=n.viewOffset+"px";o=or(e);if(!s&&0==o&&!t.force&&n.renderedView==n.view&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo))return!1;l=function(e){if(e.hasFocus())return null;var t=O();if(!t||!N(e.display.lineDiv,t))return null;var n={activeElt:t};return!window.getSelection||(t=window.getSelection()).anchorNode&&t.extend&&N(e.display.lineDiv,t.anchorNode)&&(n.anchorNode=t.anchorNode,n.anchorOffset=t.anchorOffset,n.focusNode=t.focusNode,n.focusOffset=t.focusOffset),n}(e);return 4<o&&(n.lineDiv.style.display="none"),function(n,e,t){var r=n.display,i=n.options.lineNumbers,o=r.lineDiv,l=o.firstChild;function s(e){var t=e.nextSibling;return f&&g&&n.display.currentWheelTarget==e?e.style.display="none":e.parentNode.removeChild(e),t}for(var a=r.view,u=r.viewFrom,c=0;c<a.length;c++){var h=a[c];if(!h.hidden)if(h.node&&h.node.parentNode==o){for(;l!=h.node;)l=s(l);var d=i&&null!=e&&e<=u&&h.lineNumber;h.changes&&(-1<R(h.changes,"gutter")&&(d=!1),ln(n,h,u,t)),d&&(L(h.lineNumber),h.lineNumber.appendChild(document.createTextNode(et(n.options,u)))),l=h.node.nextSibling}else{d=function(e,t,n,r){var i=an(e,t);return t.text=t.node=i.pre,i.bgClass&&(t.bgClass=i.bgClass),i.textClass&&(t.textClass=i.textClass),un(e,t),cn(e,t,n,r),hn(e,t,r),t.node}(n,h,u,t);o.insertBefore(d,l)}u+=h.size}for(;l;)l=s(l)}(e,n.updateLineNumbers,t.dims),4<o&&(n.lineDiv.style.display=""),n.renderedView=n.view,(i=l)&&i.activeElt&&i.activeElt!=O()&&(i.activeElt.focus(),!/^(INPUT|TEXTAREA)$/.test(i.activeElt.nodeName)&&i.anchorNode&&N(document.body,i.anchorNode)&&N(document.body,i.focusNode)&&(o=window.getSelection(),(l=document.createRange()).setEnd(i.anchorNode,i.anchorOffset),l.collapse(!1),o.removeAllRanges(),o.addRange(l),o.extend(i.focusNode,i.focusOffset))),L(n.cursorDiv),L(n.selectionDiv),n.gutters.style.height=n.sizer.style.minHeight=0,s&&(n.lastWrapHeight=t.wrapperHeight,n.lastWrapWidth=t.wrapperWidth,zr(e,400)),!(n.updateLineNumbers=null)}function Vr(e,t){for(var n=t.viewport,r=!0;;r=!1){if(r&&e.options.lineWrapping&&t.oldDisplayWidth!=bn(e))r&&(t.visible=vr(e.display,e.doc,n));else if(n&&null!=n.top&&(n={top:Math.min(e.doc.height+mn(e.display)-wn(e),n.top)}),t.visible=vr(e.display,e.doc,n),t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)break;if(!Ur(e,t))break;gr(e);var i=Mr(e);lr(e),Nr(e,i),Xr(e,i),t.force=!1}t.signal(e,"update",e),e.display.viewFrom==e.display.reportedViewFrom&&e.display.viewTo==e.display.reportedViewTo||(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function Kr(e,t){var n=new Gr(e,t);Ur(e,n)&&(gr(e),Vr(e,n),t=Mr(e),lr(e),Nr(e,t),Xr(e,t),n.finish())}function jr(e){var t=e.gutters.offsetWidth;e.sizer.style.marginLeft=t+"px",rn(e,"gutterChanged",e)}function Xr(e,t){e.display.sizer.style.minHeight=t.docHeight+"px",e.display.heightForcer.style.top=t.docHeight+"px",e.display.gutters.style.height=t.docHeight+e.display.barHeight+yn(e)+"px"}function Yr(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var r=qn(t)-t.scroller.scrollLeft+e.doc.scrollLeft,i=t.gutters.offsetWidth,o=r+"px",l=0;l<n.length;l++)if(!n[l].hidden){e.options.fixedGutter&&(n[l].gutter&&(n[l].gutter.style.left=o),n[l].gutterBackground&&(n[l].gutterBackground.style.left=o));var s=n[l].alignable;if(s)for(var a=0;a<s.length;a++)s[a].style.left=o}e.options.fixedGutter&&(t.gutters.style.left=r+i+"px")}}function _r(e){if(e.options.lineNumbers){var t=e.doc,n=et(e.options,t.first+t.size-1),r=e.display;if(n.length!=r.lineNumChars){var i=r.measure.appendChild(M("div",[M("div",n)],"CodeMirror-linenumber CodeMirror-gutter-elt")),t=i.firstChild.offsetWidth,i=i.offsetWidth-t;return r.lineGutter.style.width="",r.lineNumInnerWidth=Math.max(t,r.lineGutter.offsetWidth-i)+1,r.lineNumWidth=r.lineNumInnerWidth+i,r.lineNumChars=r.lineNumInnerWidth?n.length:-1,r.lineGutter.style.width=r.lineNumWidth+"px",jr(e.display),1}}}function $r(e,t){for(var n=[],r=!1,i=0;i<e.length;i++){var o=e[i],l=null;if("string"!=typeof o&&(l=o.style,o=o.className),"CodeMirror-linenumbers"==o){if(!t)continue;r=!0}n.push({className:o,style:l})}return t&&!r&&n.push({className:"CodeMirror-linenumbers",style:null}),n}function qr(e){var t=e.gutters,n=e.gutterSpecs;L(t),e.lineGutter=null;for(var r=0;r<n.length;++r){var i=n[r],o=i.className,l=i.style,i=t.appendChild(M("div",null,"CodeMirror-gutter "+o));l&&(i.style.cssText=l),"CodeMirror-linenumbers"==o&&((e.lineGutter=i).style.width=(e.lineNumWidth||1)+"px")}t.style.display=n.length?"":"none",jr(e)}function Zr(e){qr(e.display),tr(e),Yr(e)}function Qr(e,t,n,r){var i=this;this.input=n,i.scrollbarFiller=M("div",null,"CodeMirror-scrollbar-filler"),i.scrollbarFiller.setAttribute("cm-not-content","true"),i.gutterFiller=M("div",null,"CodeMirror-gutter-filler"),i.gutterFiller.setAttribute("cm-not-content","true"),i.lineDiv=T("div",null,"CodeMirror-code"),i.selectionDiv=M("div",null,null,"position: relative; z-index: 1"),i.cursorDiv=M("div",null,"CodeMirror-cursors"),i.measure=M("div",null,"CodeMirror-measure"),i.lineMeasure=M("div",null,"CodeMirror-measure"),i.lineSpace=T("div",[i.measure,i.lineMeasure,i.selectionDiv,i.cursorDiv,i.lineDiv],null,"position: relative; outline: none");var o=T("div",[i.lineSpace],"CodeMirror-lines");i.mover=M("div",[o],null,"position: relative"),i.sizer=M("div",[i.mover],"CodeMirror-sizer"),i.sizerWidth=null,i.heightForcer=M("div",null,null,"position: absolute; height: "+z+"px; width: 1px;"),i.gutters=M("div",null,"CodeMirror-gutters"),i.lineGutter=null,i.scroller=M("div",[i.sizer,i.heightForcer,i.gutters],"CodeMirror-scroll"),i.scroller.setAttribute("tabIndex","-1"),i.wrapper=M("div",[i.scrollbarFiller,i.gutterFiller,i.scroller],"CodeMirror"),i.wrapper.setAttribute("translate","no"),w&&v<8&&(i.gutters.style.zIndex=-1,i.scroller.style.paddingRight=0),f||d&&h||(i.scroller.draggable=!0),e&&(e.appendChild?e.appendChild(i.wrapper):e(i.wrapper)),i.viewFrom=i.viewTo=t.first,i.reportedViewFrom=i.reportedViewTo=t.first,i.view=[],i.renderedView=null,i.externalMeasured=null,i.viewOffset=0,i.lastWrapHeight=i.lastWrapWidth=0,i.updateLineNumbers=null,i.nativeBarWidth=i.barHeight=i.barWidth=0,i.scrollbarsClipped=!1,i.lineNumWidth=i.lineNumInnerWidth=i.lineNumChars=null,i.alignWidgets=!1,i.cachedCharWidth=i.cachedTextHeight=i.cachedPaddingH=null,i.maxLine=null,i.maxLineLength=0,i.maxLineChanged=!1,i.wheelDX=i.wheelDY=i.wheelStartX=i.wheelStartY=null,i.shift=!1,i.selForContextMenu=null,i.activeTouch=null,i.gutterSpecs=$r(r.gutters,r.lineNumbers),qr(i),n.init(i)}Gr.prototype.signal=function(e,t){Ce(e,t)&&this.events.push(arguments)},Gr.prototype.finish=function(){for(var e=0;e<this.events.length;e++)be.apply(null,this.events[e])};var Jr=0,ei=null;function ti(e){var t=e.wheelDeltaX,n=e.wheelDeltaY;return null==t&&e.detail&&e.axis==e.HORIZONTAL_AXIS&&(t=e.detail),null==n&&e.detail&&e.axis==e.VERTICAL_AXIS?n=e.detail:null==n&&(n=e.wheelDelta),{x:t,y:n}}function ni(e){e=ti(e);return e.x*=ei,e.y*=ei,e}function ri(e,t){var n=ti(t),r=n.x,i=n.y,o=ei;0===event.deltaMode&&(r=t.deltaX,i=t.deltaY,o=1);var l=e.display,s=l.scroller,a=s.scrollWidth>s.clientWidth,n=s.scrollHeight>s.clientHeight;if(r&&a||i&&n){if(i&&g&&f)e:for(var u=t.target,c=l.view;u!=s;u=u.parentNode)for(var h=0;h<c.length;h++)if(c[h].node==u){e.display.currentWheelTarget=u;break e}if(r&&!d&&!p&&null!=o)return 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a=0;a<o.changes.length;++a){var u=o.changes[a];if(n<u.from.line)u.from=tt(u.from.line+r,u.from.ch),u.to=tt(u.to.line+r,u.to.ch);else if(t<=u.to.line){l=!1;break}}l||(e.splice(0,i+1),i=0)}}}function Ji(e,t){var n=t.from.line,r=t.to.line,t=t.text.length-(r-n)-1;Qi(e.done,n,r,t),Qi(e.undone,n,r,t)}function eo(e,t,n,r){var i=t,o=t;return"number"==typeof t?o=Ye(e,st(e,t)):i=Ze(t),null==i?null:(r(o,i)&&e.cm&&nr(e.cm,i,n),o)}function to(e){this.lines=e,this.parent=null;for(var t=0,n=0;n<e.length;++n)e[n].parent=this,t+=e[n].height;this.height=t}function no(e){this.children=e;for(var t=0,n=0,r=0;r<e.length;++r){var i=e[r];t+=i.chunkSize(),n+=i.height,i.parent=this}this.size=t,this.height=n,this.parent=null}oi.prototype.from=function(){return lt(this.anchor,this.head)},oi.prototype.to=function(){return ot(this.anchor,this.head)},oi.prototype.empty=function(){return this.head.line==this.anchor.line&&this.head.ch==this.anchor.ch},to.prototype={chunkSize:function(){return this.lines.length},removeInner:function(e,t){for(var n,r=e,i=e+t;r<i;++r){var o=this.lines[r];this.height-=o.height,(n=o).parent=null,Nt(n),rn(o,"delete")}this.lines.splice(e,t)},collapse:function(e){e.push.apply(e,this.lines)},insertInner:function(e,t,n){this.height+=n,this.lines=this.lines.slice(0,e).concat(t).concat(this.lines.slice(e));for(var r=0;r<t.length;++r)t[r].parent=this},iterN:function(e,t,n){for(var r=e+t;e<r;++e)if(n(this.lines[e]))return!0}},no.prototype={chunkSize:function(){return this.size},removeInner:function(e,t){this.size-=t;for(var n,r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<o){var l=Math.min(t,o-e),s=i.height;if(i.removeInner(e,l),this.height-=s-i.height,o==l&&(this.children.splice(r--,1),i.parent=null),0==(t-=l))break;e=0}else e-=o}this.size-t<25&&(1<this.children.length||!(this.children[0]instanceof to))&&(this.collapse(n=[]),this.children=[new to(n)],this.children[0].parent=this)},collapse:function(e){for(var t=0;t<this.children.length;++t)this.children[t].collapse(e)},insertInner:function(e,t,n){this.size+=t.length,this.height+=n;for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<=o){if(i.insertInner(e,t,n),i.lines&&50<i.lines.length){for(var l=i.lines.length%25+25,s=l;s<i.lines.length;){var a=new to(i.lines.slice(s,s+=25));i.height-=a.height,this.children.splice(++r,0,a),a.parent=this}i.lines=i.lines.slice(0,l),this.maybeSpill()}break}e-=o}},maybeSpill:function(){if(!(this.children.length<=10)){var e=this;do{var t,n=new no(e.children.splice(e.children.length-5,5))}while(e.parent?(e.size-=n.size,e.height-=n.height,t=R(e.parent.children,e),e.parent.children.splice(t+1,0,n)):(((t=new no(e.children)).parent=e).children=[t,n],e=t),n.parent=e.parent,10<e.children.length);e.parent.maybeSpill()}},iterN:function(e,t,n){for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<o){var l=Math.min(t,o-e);if(i.iterN(e,l,n))return!0;if(0==(t-=l))break;e=0}else e-=o}}};function ro(e,t,n){if(n)for(var r in n)n.hasOwnProperty(r)&&(this[r]=n[r]);this.doc=e,this.node=t}function io(e,t,n){Gt(t)<(e.curOp&&e.curOp.scrollTop||e.doc.scrollTop)&&br(e,n)}ro.prototype.clear=function(){var e=this.doc.cm,t=this.line.widgets,n=this.line,r=Ze(n);if(null!=r&&t){for(var i=0;i<t.length;++i)t[i]==this&&t.splice(i--,1);t.length||(n.widgets=null);var o=fn(this);qe(n,Math.max(0,n.height-o)),e&&(Pr(e,function(){io(e,n,-o),nr(e,r,"widget")}),rn(e,"lineWidgetCleared",e,this,r))}},ro.prototype.changed=function(){var e=this,t=this.height,n=this.doc.cm,r=this.line;this.height=null;var i=fn(this)-t;i&&(Bt(this.doc,r)||qe(r,r.height+i),n&&Pr(n,function(){n.curOp.forceUpdate=!0,io(n,r,i),rn(n,"lineWidgetChanged",n,e,Ze(r))}))},Se(ro);function oo(e,t){this.lines=[],this.type=t,this.doc=e,this.id=++lo}var lo=0;function so(r,i,o,e,t){if(e&&e.shared)return function(e,n,r,i,o){(i=P(i)).shared=!1;var l=[so(e,n,r,i,o)],s=l[0],a=i.widgetNode;return mi(e,function(e){a&&(i.widgetNode=a.cloneNode(!0)),l.push(so(e,at(e,n),at(e,r),i,o));for(var t=0;t<e.linked.length;++t)if(e.linked[t].isParent)return;s=Y(l)}),new ao(l,s)}(r,i,o,e,t);if(r.cm&&!r.cm.curOp)return Er(r.cm,so)(r,i,o,e,t);var l=new oo(r,t),t=nt(i,o);if(e&&P(e,l,!1),0<t||0==t&&!1!==l.clearWhenEmpty)return l;if(l.replacedWith&&(l.collapsed=!0,l.widgetNode=T("span",[l.replacedWith],"CodeMirror-widget"),e.handleMouseEvents||l.widgetNode.setAttribute("cm-ignore-events","true"),e.insertLeft&&(l.widgetNode.insertLeft=!0)),l.collapsed){if(Et(r,i.line,i,o,l)||i.line!=o.line&&Et(r,o.line,i,o,l))throw new Error("Inserting collapsed marker partially overlapping an existing one");St=!0}l.addToHistory&&Ci(r,{from:i,to:o,origin:"markText"},r.sel,NaN);var s,a=i.line,u=r.cm;if(r.iter(a,o.line+1,function(e){var t,n;u&&l.collapsed&&!u.options.lineWrapping&&It(e)==u.display.maxLine&&(s=!0),l.collapsed&&a!=i.line&&qe(e,0),t=e,n=new Lt(l,a==i.line?i.ch:null,a==o.line?o.ch:null),(e=(e=r.cm&&r.cm.curOp)&&window.WeakSet&&(e.markedSpans||(e.markedSpans=new WeakSet)))&&e.has(t.markedSpans)?t.markedSpans.push(n):(t.markedSpans=t.markedSpans?t.markedSpans.concat([n]):[n],e&&e.add(t.markedSpans)),n.marker.attachLine(t),++a}),l.collapsed&&r.iter(i.line,o.line+1,function(e){Bt(r,e)&&qe(e,0)}),l.clearOnEnter&&me(l,"beforeCursorEnter",function(){return l.clear()}),l.readOnly&&(Ct=!0,(r.history.done.length||r.history.undone.length)&&r.clearHistory()),l.collapsed&&(l.id=++lo,l.atomic=!0),u){if(s&&(u.curOp.updateMaxLine=!0),l.collapsed)tr(u,i.line,o.line+1);else if(l.className||l.startStyle||l.endStyle||l.css||l.attributes||l.title)for(var n=i.line;n<=o.line;n++)nr(u,n,"text");l.atomic&&Ri(u.doc),rn(u,"markerAdded",u,l)}return l}oo.prototype.clear=function(){if(!this.explicitlyCleared){var e,t=this.doc.cm,n=t&&!t.curOp;n&&Hr(t),!Ce(this,"clear")||(e=this.find())&&rn(this,"clear",e.from,e.to);for(var r=null,i=null,o=0;o<this.lines.length;++o){var l=this.lines[o],s=kt(l.markedSpans,this);t&&!this.collapsed?nr(t,Ze(l),"text"):t&&(null!=s.to&&(i=Ze(l)),null!=s.from&&(r=Ze(l))),l.markedSpans=function(e,t){for(var n,r=0;r<e.length;++r)e[r]!=t&&(n=n||[]).push(e[r]);return n}(l.markedSpans,s),null==s.from&&this.collapsed&&!Bt(this.doc,l)&&t&&qe(l,Yn(t.display))}if(t&&this.collapsed&&!t.options.lineWrapping)for(var a=0;a<this.lines.length;++a){var u=It(this.lines[a]),c=Ut(u);c>t.display.maxLineLength&&(t.display.maxLine=u,t.display.maxLineLength=c,t.display.maxLineChanged=!0)}null!=r&&t&&this.collapsed&&tr(t,r,i+1),this.lines.length=0,this.explicitlyCleared=!0,this.atomic&&this.doc.cantEdit&&(this.doc.cantEdit=!1,t&&Ri(t.doc)),t&&rn(t,"markerCleared",t,this,r,i),n&&Fr(t),this.parent&&this.parent.clear()}},oo.prototype.find=function(e,t){var n,r;null==e&&"bookmark"==this.type&&(e=1);for(var i=0;i<this.lines.length;++i){var o=this.lines[i],l=kt(o.markedSpans,this);if(null!=l.from&&(n=tt(t?o:Ze(o),l.from),-1==e))return n;if(null!=l.to&&(r=tt(t?o:Ze(o),l.to),1==e))return r}return n&&{from:n,to:r}},oo.prototype.changed=function(){var n=this,r=this.find(-1,!0),i=this,o=this.doc.cm;r&&o&&Pr(o,function(){var e=r.line,t=Ze(r.line),t=Sn(o,t);t&&(On(t),o.curOp.selectionChanged=o.curOp.forceUpdate=!0),o.curOp.updateMaxLine=!0,Bt(i.doc,e)||null==i.height||(t=i.height,i.height=null,(t=fn(i)-t)&&qe(e,e.height+t)),rn(o,"markerChanged",o,n)})},oo.prototype.attachLine=function(e){var t;!this.lines.length&&this.doc.cm&&((t=this.doc.cm.curOp).maybeHiddenMarkers&&-1!=R(t.maybeHiddenMarkers,this)||(t.maybeUnhiddenMarkers||(t.maybeUnhiddenMarkers=[])).push(this)),this.lines.push(e)},oo.prototype.detachLine=function(e){this.lines.splice(R(this.lines,e),1),!this.lines.length&&this.doc.cm&&((e=this.doc.cm.curOp).maybeHiddenMarkers||(e.maybeHiddenMarkers=[])).push(this)},Se(oo);var ao=function(e,t){this.markers=e,this.primary=t;for(var n=0;n<e.length;++n)e[n].parent=this};function uo(e){return e.findMarks(tt(e.first,0),e.clipPos(tt(e.lastLine())),function(e){return e.parent})}function co(o){for(var e=0;e<o.length;e++)!function(e){var t=o[e],n=[t.primary.doc];mi(t.primary.doc,function(e){return n.push(e)});for(var r=0;r<t.markers.length;r++){var i=t.markers[r];-1==R(n,i.doc)&&(i.parent=null,t.markers.splice(r--,1))}}(e)}ao.prototype.clear=function(){if(!this.explicitlyCleared){this.explicitlyCleared=!0;for(var e=0;e<this.markers.length;++e)this.markers[e].clear();rn(this,"clear")}},ao.prototype.find=function(e,t){return this.primary.find(e,t)},Se(ao);function ho(e,t,n,r,i){if(!(this instanceof ho))return new ho(e,t,n,r,i);null==n&&(n=0),no.call(this,[new to([new Kt("",null)])]),this.first=n,this.scrollTop=this.scrollLeft=0,this.cantEdit=!1,this.cleanGeneration=1,n=tt(this.modeFrontier=this.highlightFrontier=n,0),this.sel=si(n),this.history=new bi(null),this.id=++fo,this.modeOption=t,this.lineSep=r,this.direction="rtl"==i?"rtl":"ltr",this.extend=!1,"string"==typeof e&&(e=this.splitLines(e)),gi(this,{from:n,to:n,text:e}),Pi(this,si(n),G)}var fo=0;(ho.prototype=q(no.prototype,{constructor:ho,iter:function(e,t,n){n?this.iterN(e-this.first,t-e,n):this.iterN(this.first,this.first+this.size,e)},insert:function(e,t){for(var n=0,r=0;r<t.length;++r)n+=t[r].height;this.insertInner(e-this.first,t,n)},remove:function(e,t){this.removeInner(e-this.first,t)},getValue:function(e){var t=$e(this,this.first,this.first+this.size);return!1===e?t:t.join(e||this.lineSeparator())},setValue:Rr(function(e){var t=tt(this.first,0),n=this.first+this.size-1;ji(this,{from:t,to:tt(n,Ye(this,n).text.length),text:this.splitLines(e),origin:"setValue",full:!0},!0),this.cm&&xr(this.cm,0,0),Pi(this,si(t),G)}),replaceRange:function(e,t,n,r){qi(this,e,t=at(this,t),n=n?at(this,n):t,r)},getRange:function(e,t,n){t=_e(this,at(this,e),at(this,t));return!1===n?t:""===n?t.join(""):t.join(n||this.lineSeparator())},getLine:function(e){e=this.getLineHandle(e);return e&&e.text},getLineHandle:function(e){if(Je(this,e))return Ye(this,e)},getLineNumber:Ze,getLineHandleVisualStart:function(e){return It(e="number"==typeof e?Ye(this,e):e)},lineCount:function(){return this.size},firstLine:function(){return this.first},lastLine:function(){return this.first+this.size-1},clipPos:function(e){return at(this,e)},getCursor:function(e){var t=this.sel.primary(),t=null==e||"head"==e?t.head:"anchor"==e?t.anchor:"end"==e||"to"==e||!1===e?t.to():t.from();return t},listSelections:function(){return this.sel.ranges},somethingSelected:function(){return this.sel.somethingSelected()},setCursor:Rr(function(e,t,n){Hi(this,at(this,"number"==typeof e?tt(e,t||0):e),null,n)}),setSelection:Rr(function(e,t,n){Hi(this,at(this,e),at(this,t||e),n)}),extendSelection:Rr(function(e,t,n){Ai(this,at(this,e),t&&at(this,t),n)}),extendSelections:Rr(function(e,t){Di(this,ut(this,e),t)}),extendSelectionsBy:Rr(function(e,t){Di(this,ut(this,_(this.sel.ranges,e)),t)}),setSelections:Rr(function(e,t,n){if(e.length){for(var r=[],i=0;i<e.length;i++)r[i]=new oi(at(this,e[i].anchor),at(this,e[i].head||e[i].anchor));null==t&&(t=Math.min(e.length-1,this.sel.primIndex)),Pi(this,li(this.cm,r,t),n)}}),addSelection:Rr(function(e,t,n){var r=this.sel.ranges.slice(0);r.push(new oi(at(this,e),at(this,t||e))),Pi(this,li(this.cm,r,r.length-1),n)}),getSelection:function(e){for(var t=this.sel.ranges,n=0;n<t.length;n++)var r=_e(this,t[n].from(),t[n].to()),i=i?i.concat(r):r;return!1===e?i:i.join(e||this.lineSeparator())},getSelections:function(e){for(var t=[],n=this.sel.ranges,r=0;r<n.length;r++){var i=_e(this,n[r].from(),n[r].to());!1!==e&&(i=i.join(e||this.lineSeparator())),t[r]=i}return t},replaceSelection:function(e,t,n){for(var r=[],i=0;i<this.sel.ranges.length;i++)r[i]=e;this.replaceSelections(r,t,n||"+input")},replaceSelections:Rr(function(e,t,n){for(var r=[],i=this.sel,o=0;o<i.ranges.length;o++){var l=i.ranges[o];r[o]={from:l.from(),to:l.to(),text:this.splitLines(e[o]),origin:n}}for(var t=t&&"end"!=t&&function(e,t,n){for(var r=[],i=u=tt(e.first,0),o=0;o<t.length;o++){var l=t[o],s=hi(l.from,u,i),a=hi(ai(l),u,i),u=l.to,i=a;"around"==n?(l=nt((l=e.sel.ranges[o]).head,l.anchor)<0,r[o]=new oi(l?a:s,l?s:a)):r[o]=new oi(s,s)}return new ii(r,e.sel.primIndex)}(this,r,t),s=r.length-1;0<=s;s--)ji(this,r[s]);t?Fi(this,t):this.cm&&wr(this.cm)}),undo:Rr(function(){Yi(this,"undo")}),redo:Rr(function(){Yi(this,"redo")}),undoSelection:Rr(function(){Yi(this,"undo",!0)}),redoSelection:Rr(function(){Yi(this,"redo",!0)}),setExtending:function(e){this.extend=e},getExtending:function(){return this.extend},historySize:function(){for(var e=this.history,t=0,n=0,r=0;r<e.done.length;r++)e.done[r].ranges||++t;for(var i=0;i<e.undone.length;i++)e.undone[i].ranges||++n;return{undo:t,redo:n}},clearHistory:function(){var t=this;this.history=new bi(this.history),mi(this,function(e){return e.history=t.history},!0)},markClean:function(){this.cleanGeneration=this.changeGeneration(!0)},changeGeneration:function(e){return e&&(this.history.lastOp=this.history.lastSelOp=this.history.lastOrigin=null),this.history.generation},isClean:function(e){return this.history.generation==(e||this.cleanGeneration)},getHistory:function(){return{done:Ni(this.history.done),undone:Ni(this.history.undone)}},setHistory:function(e){var t=this.history=new bi(this.history);t.done=Ni(e.done.slice(0),null,!0),t.undone=Ni(e.undone.slice(0),null,!0)},setGutterMarker:Rr(function(e,n,r){return eo(this,e,"gutter",function(e){var t=e.gutterMarkers||(e.gutterMarkers={});return!(t[n]=r)&&ee(t)&&(e.gutterMarkers=null),1})}),clearGutter:Rr(function(t){var n=this;this.iter(function(e){e.gutterMarkers&&e.gutterMarkers[t]&&eo(n,e,"gutter",function(){return e.gutterMarkers[t]=null,ee(e.gutterMarkers)&&(e.gutterMarkers=null),1})})}),lineInfo:function(e){var t;if("number"==typeof e){if(!Je(this,e))return null;if(!(e=Ye(this,t=e)))return null}else if(null==(t=Ze(e)))return null;return{line:t,handle:e,text:e.text,gutterMarkers:e.gutterMarkers,textClass:e.textClass,bgClass:e.bgClass,wrapClass:e.wrapClass,widgets:e.widgets}},addLineClass:Rr(function(e,n,r){return 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g=o.sel.ranges[p];if(g.head.line==t&&g.head.ch<u.length){g=tt(t,u.length);Wi(o,p,new oi(g,g));break}}}cl.defineInitHook=function(e){return hl.push(e)};var fl=null;function pl(e){fl=e}function gl(e,t,n,r,i){var o=e.doc;e.display.shift=!1,r=r||o.sel;var l=+new Date-200,s="paste"==i||e.state.pasteIncoming>l,a=He(t),u=null;if(s&&1<r.ranges.length)if(fl&&fl.text.join("\n")==t){if(r.ranges.length%fl.text.length==0)for(var u=[],c=0;c<fl.text.length;c++)u.push(o.splitLines(fl.text[c]))}else a.length==r.ranges.length&&e.options.pasteLinesPerSelection&&(u=_(a,function(e){return[e]}));for(var h=e.curOp.updateInput,d=r.ranges.length-1;0<=d;d--){var f=r.ranges[d],p=f.from(),g=f.to();f.empty()&&(n&&0<n?p=tt(p.line,p.ch-n):e.state.overwrite&&!s?g=tt(g.line,Math.min(Ye(o,g.line).text.length,g.ch+Y(a).length)):s&&fl&&fl.lineWise&&fl.text.join("\n")==a.join("\n")&&(p=g=tt(p.line,0)));g={from:p,to:g,text:u?u[d%u.length]:a,origin:i||(s?"paste":e.state.cutIncoming>l?"cut":"+input")};ji(e.doc,g),rn(e,"inputRead",e,g)}t&&!s&&vl(e,t),wr(e),e.curOp.updateInput<2&&(e.curOp.updateInput=h),e.curOp.typing=!0,e.state.pasteIncoming=e.state.cutIncoming=-1}function ml(e,t){var n=e.clipboardData&&e.clipboardData.getData("Text");return n&&(e.preventDefault(),t.isReadOnly()||t.options.disableInput||Pr(t,function(){return gl(t,n,0,null,"paste")}),1)}function vl(e,t){if(e.options.electricChars&&e.options.smartIndent)for(var n=e.doc.sel,r=n.ranges.length-1;0<=r;r--){var i=n.ranges[r];if(!(100<i.head.ch||r&&n.ranges[r-1].head.line==i.head.line)){var o=e.getModeAt(i.head),l=!1;if(o.electricChars){for(var s=0;s<o.electricChars.length;s++)if(-1<t.indexOf(o.electricChars.charAt(s))){l=dl(e,i.head.line,"smart");break}}else o.electricInput&&o.electricInput.test(Ye(e.doc,i.head.line).text.slice(0,i.head.ch))&&(l=dl(e,i.head.line,"smart"));l&&rn(e,"electricInput",e,i.head.line)}}}function yl(e){for(var t=[],n=[],r=0;r<e.doc.sel.ranges.length;r++){var i=e.doc.sel.ranges[r].head.line,i={anchor:tt(i,0),head:tt(i+1,0)};n.push(i),t.push(e.getRange(i.anchor,i.head))}return{text:t,ranges:n}}function bl(e,t,n,r){e.setAttribute("autocorrect",n?"":"off"),e.setAttribute("autocapitalize",r?"":"off"),e.setAttribute("spellcheck",!!t)}function wl(){var e=M("textarea",null,null,"position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"),t=M("div",[e],null,"overflow: hidden; position: relative; width: 3px; height: 0px;");return f?e.style.width="1000px":e.setAttribute("wrap","off"),s&&(e.style.border="1px solid black"),bl(e),t}function xl(i,o,l,s,a){var e=o,t=l,u=Ye(i,o.line),c=a&&"rtl"==i.direction?-l:l;function n(e){var t,n,r;if(null==(n="codepoint"==s?(t=u.text.charCodeAt(o.ch+(0<l?0:-1)),isNaN(t)?null:(n=0<l?55296<=t&&t<56320:56320<=t&&t<57343,new tt(o.line,Math.max(0,Math.min(u.text.length,o.ch+l*(n?2:1))),-l))):a?Io(i.cm,u,o,l):Po(u,o,l))){if(e||(r=o.line+c)<i.first||r>=i.first+i.size||(o=new tt(r,o.ch,o.sticky),!(u=Ye(i,r))))return;o=Eo(a,i.cm,u,o.line,c)}else o=n;return 1}if("char"==s||"codepoint"==s)n();else if("column"==s)n(!0);else if("word"==s||"group"==s)for(var r=null,h="group"==s,d=i.cm&&i.cm.getHelper(o,"wordChars"),f=!0;!(l<0)||n(!f);f=!1){var p=u.text.charAt(o.ch)||"\n",p=J(p,d)?"w":h&&"\n"==p?"n":!h||/\s/.test(p)?null:"p";if(!h||f||p||(p="s"),r&&r!=p){l<0&&(l=1,n(),o.sticky="after");break}if(p&&(r=p),0<l&&!n(!f))break}t=Gi(i,o,e,t,!0);return rt(e,t)&&(t.hitSide=!0),t}function Cl(e,t,n,r){var i,o,l,s=e.doc,a=t.left;for("page"==r?(i=Math.min(e.display.wrapper.clientHeight,window.innerHeight||document.documentElement.clientHeight),i=Math.max(i-.5*Yn(e.display),3),o=(0<n?t.bottom:t.top)+n*i):"line"==r&&(o=0<n?t.bottom+3:t.top-3);(l=Gn(e,a,o)).outside;){if(n<0?o<=0:o>=s.height){l.hitSide=!0;break}o+=5*n}return l}e=function(e){this.cm=e,this.lastAnchorNode=this.lastAnchorOffset=this.lastFocusNode=this.lastFocusOffset=null,this.polling=new I,this.composing=null,this.gracePeriod=!1,this.readDOMTimeout=null};function Sl(e,t){var n=Sn(e,t.line);if(!n||n.hidden)return null;var r=Ye(e.doc,t.line),n=xn(n,r,t.line),r=pe(r,e.doc.direction),e="left";r&&(e=le(r,t.ch)%2?"right":"left");e=Nn(n.map,t.ch,e);return e.offset="right"==e.collapse?e.end:e.start,e}function Ll(e,t){return t&&(e.bad=!0),e}function kl(e,t,n){var r;if(t==e.display.lineDiv){if(!(r=e.display.lineDiv.childNodes[n]))return Ll(e.clipPos(tt(e.display.viewTo-1)),!0);t=null,n=0}else for(r=t;;r=r.parentNode){if(!r||r==e.display.lineDiv)return null;if(r.parentNode&&r.parentNode==e.display.lineDiv)break}for(var i=0;i<e.display.view.length;i++){var o=e.display.view[i];if(o.node==r)return function(u,e,t){var n=u.text.firstChild,r=!1;if(!e||!N(n,e))return Ll(tt(Ze(u.line),0),!0);if(e==n&&(r=!0,e=n.childNodes[t],t=0,!e)){var i=u.rest?Y(u.rest):u.line;return Ll(tt(Ze(i),i.text.length),r)}var i=3==e.nodeType?e:null,o=e;i||1!=e.childNodes.length||3!=e.firstChild.nodeType||(i=e.firstChild,t=t&&i.nodeValue.length);for(;o.parentNode!=n;)o=o.parentNode;var c=u.measure,h=c.maps;function l(e,t,n){for(var r=-1;r<(h?h.length:0);r++)for(var i=r<0?c.map:h[r],o=0;o<i.length;o+=3){var l=i[o+2];if(l==e||l==t){var s=Ze(r<0?u.line:u.rest[r]),a=i[o]+n;return tt(s,a=n<0||l!=e?i[o+(n?1:0)]:a)}}}var s=l(i,o,t);if(s)return Ll(s,r);for(var a=o.nextSibling,d=i?i.nodeValue.length-t:0;a;a=a.nextSibling){if(s=l(a,a.firstChild,0))return Ll(tt(s.line,s.ch-d),r);d+=a.textContent.length}for(var f=o.previousSibling,p=t;f;f=f.previousSibling){if(s=l(f,f.firstChild,-1))return Ll(tt(s.line,s.ch+p),r);p+=f.textContent.length}}(o,t,n)}}e.prototype.init=function(e){var t=this,o=this,l=o.cm,s=o.div=e.lineDiv;function a(e){for(var t=e.target;t;t=t.parentNode){if(t==s)return 1;if(/\bCodeMirror-(?:line)?widget\b/.test(t.className))break}}function n(e){if(a(e)&&!we(l,e)){if(l.somethingSelected())pl({lineWise:!1,text:l.getSelections()}),"cut"==e.type&&l.replaceSelection("",null,"cut");else{if(!l.options.lineWiseCopyCut)return;var t=yl(l);pl({lineWise:!0,text:t.text}),"cut"==e.type&&l.operation(function(){l.setSelections(t.ranges,0,G),l.replaceSelection("",null,"cut")})}if(e.clipboardData){e.clipboardData.clearData();var n=fl.text.join("\n");if(e.clipboardData.setData("Text",n),e.clipboardData.getData("Text")==n)return void e.preventDefault()}var r=wl(),e=r.firstChild;l.display.lineSpace.insertBefore(r,l.display.lineSpace.firstChild),e.value=fl.text.join("\n");var i=O();H(e),setTimeout(function(){l.display.lineSpace.removeChild(r),i.focus(),i==s&&o.showPrimarySelection()},50)}}s.contentEditable=!0,bl(s,l.options.spellcheck,l.options.autocorrect,l.options.autocapitalize),me(s,"paste",function(e){!a(e)||we(l,e)||ml(e,l)||v<=11&&setTimeout(Er(l,function(){return t.updateFromDOM()}),20)}),me(s,"compositionstart",function(e){t.composing={data:e.data,done:!1}}),me(s,"compositionupdate",function(e){t.composing||(t.composing={data:e.data,done:!1})}),me(s,"compositionend",function(e){t.composing&&(e.data!=t.composing.data&&t.readFromDOMSoon(),t.composing.done=!0)}),me(s,"touchstart",function(){return o.forceCompositionEnd()}),me(s,"input",function(){t.composing||t.readFromDOMSoon()}),me(s,"copy",n),me(s,"cut",n)},e.prototype.screenReaderLabelChanged=function(e){e?this.div.setAttribute("aria-label",e):this.div.removeAttribute("aria-label")},e.prototype.prepareSelection=function(){var e=sr(this.cm,!1);return e.focus=O()==this.div,e},e.prototype.showSelection=function(e,t){e&&this.cm.display.view.length&&((e.focus||t)&&this.showPrimarySelection(),this.showMultipleSelections(e))},e.prototype.getSelection=function(){return this.cm.display.wrapper.ownerDocument.getSelection()},e.prototype.showPrimarySelection=function(){var e=this.getSelection(),t=this.cm,n=t.doc.sel.primary(),r=n.from(),i=n.to();if(t.display.viewTo==t.display.viewFrom||r.line>=t.display.viewTo||i.line<t.display.viewFrom)e.removeAllRanges();else{var o=kl(t,e.anchorNode,e.anchorOffset),n=kl(t,e.focusNode,e.focusOffset);if(!o||o.bad||!n||n.bad||0!=nt(lt(o,n),r)||0!=nt(ot(o,n),i)){n=t.display.view,r=r.line>=t.display.viewFrom&&Sl(t,r)||{node:n[0].measure.map[2],offset:0},i=i.line<t.display.viewTo&&Sl(t,i);if(i||(i={node:(s=(s=n[n.length-1].measure).maps?s.maps[s.maps.length-1]:s.map)[s.length-1],offset:s[s.length-2]-s[s.length-3]}),r&&i){var l,s=e.rangeCount&&e.getRangeAt(0);try{l=W(r.node,r.offset,i.offset,i.node)}catch(e){}l&&(!d&&t.state.focused?(e.collapse(r.node,r.offset),l.collapsed||(e.removeAllRanges(),e.addRange(l))):(e.removeAllRanges(),e.addRange(l)),s&&null==e.anchorNode?e.addRange(s):d&&this.startGracePeriod()),this.rememberSelection()}else e.removeAllRanges()}}},e.prototype.startGracePeriod=function(){var e=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout(function(){e.gracePeriod=!1,e.selectionChanged()&&e.cm.operation(function(){return e.cm.curOp.selectionChanged=!0})},20)},e.prototype.showMultipleSelections=function(e){k(this.cm.display.cursorDiv,e.cursors),k(this.cm.display.selectionDiv,e.selection)},e.prototype.rememberSelection=function(){var e=this.getSelection();this.lastAnchorNode=e.anchorNode,this.lastAnchorOffset=e.anchorOffset,this.lastFocusNode=e.focusNode,this.lastFocusOffset=e.focusOffset},e.prototype.selectionInEditor=function(){var e=this.getSelection();if(!e.rangeCount)return!1;e=e.getRangeAt(0).commonAncestorContainer;return N(this.div,e)},e.prototype.focus=function(){"nocursor"!=this.cm.options.readOnly&&(this.selectionInEditor()&&O()==this.div||this.showSelection(this.prepareSelection(),!0),this.div.focus())},e.prototype.blur=function(){this.div.blur()},e.prototype.getField=function(){return this.div},e.prototype.supportsTouch=function(){return!0},e.prototype.receivedFocus=function(){var e=this,t=this;this.selectionInEditor()?setTimeout(function(){return e.pollSelection()},20):Pr(this.cm,function(){return t.cm.curOp.selectionChanged=!0}),this.polling.set(this.cm.options.pollInterval,function e(){t.cm.state.focused&&(t.pollSelection(),t.polling.set(t.cm.options.pollInterval,e))})},e.prototype.selectionChanged=function(){var e=this.getSelection();return e.anchorNode!=this.lastAnchorNode||e.anchorOffset!=this.lastAnchorOffset||e.focusNode!=this.lastFocusNode||e.focusOffset!=this.lastFocusOffset},e.prototype.pollSelection=function(){if(null==this.readDOMTimeout&&!this.gracePeriod&&this.selectionChanged()){var e,t,n=this.getSelection(),r=this.cm;if(a&&o&&this.cm.display.gutterSpecs.length&&function(e){for(var t=e;t;t=t.parentNode)if(/CodeMirror-gutter-wrapper/.test(t.className))return!0;return!1}(n.anchorNode))return this.cm.triggerOnKeyDown({type:"keydown",keyCode:8,preventDefault:Math.abs}),this.blur(),void this.focus();this.composing||(this.rememberSelection(),e=kl(r,n.anchorNode,n.anchorOffset),t=kl(r,n.focusNode,n.focusOffset),e&&t&&Pr(r,function(){Pi(r.doc,si(e,t),G),(e.bad||t.bad)&&(r.curOp.selectionChanged=!0)}))}},e.prototype.pollContent=function(){null!=this.readDOMTimeout&&(clearTimeout(this.readDOMTimeout),this.readDOMTimeout=null);var e,t=this.cm,n=t.display,r=t.doc.sel.primary(),i=r.from(),r=r.to();if(0==i.ch&&i.line>t.firstLine()&&(i=tt(i.line-1,Ye(t.doc,i.line-1).length)),r.ch==Ye(t.doc,r.line).text.length&&r.line<t.lastLine()&&(r=tt(r.line+1,0)),i.line<n.viewFrom||r.line>n.viewTo-1)return!1;var o,l=i.line==n.viewFrom||0==(l=er(t,i.line))?(e=Ze(n.view[0].line),n.view[0].node):(e=Ze(n.view[l].line),n.view[l-1].node.nextSibling),r=er(t,r.line),r=r==n.view.length-1?(o=n.viewTo-1,n.lineDiv.lastChild):(o=Ze(n.view[r+1].line)-1,n.view[r+1].node.previousSibling);if(!l)return!1;for(var s=t.doc.splitLines(function(l,e,t,s,a){var n="",u=!1,c=l.doc.lineSeparator(),h=!1;function d(){u&&(n+=c,h&&(n+=c),u=h=!1)}function f(e){e&&(d(),n+=e)}for(;!function e(t){if(1==t.nodeType){var n=t.getAttribute("cm-text");if(n)f(n);else if(n=t.getAttribute("cm-marker"))(n=l.findMarks(tt(s,0),tt(a+1,0),(o=+n,function(e){return e.id==o}))).length&&(r=n[0].find(0))&&f(_e(l.doc,r.from,r.to).join(c));else if("false"!=t.getAttribute("contenteditable")){var r=/^(pre|div|p|li|table|br)$/i.test(t.nodeName);if(/^br$/i.test(t.nodeName)||0!=t.textContent.length){r&&d();for(var i=0;i<t.childNodes.length;i++)e(t.childNodes[i]);/^(pre|p)$/i.test(t.nodeName)&&(h=!0),r&&(u=!0)}}}else 3==t.nodeType&&f(t.nodeValue.replace(/\u200b/g,"").replace(/\u00a0/g," "));var o}(e),e!=t;)e=e.nextSibling,h=!1;return n}(t,l,r,e,o)),a=_e(t.doc,tt(e,0),tt(o,Ye(t.doc,o).text.length));1<s.length&&1<a.length;)if(Y(s)==Y(a))s.pop(),a.pop(),o--;else{if(s[0]!=a[0])break;s.shift(),a.shift(),e++}for(var u=0,c=0,h=s[0],d=a[0],f=Math.min(h.length,d.length);u<f&&h.charCodeAt(u)==d.charCodeAt(u);)++u;for(var p=Y(s),g=Y(a),m=Math.min(p.length-(1==s.length?u:0),g.length-(1==a.length?u:0));c<m&&p.charCodeAt(p.length-c-1)==g.charCodeAt(g.length-c-1);)++c;if(1==s.length&&1==a.length&&e==i.line)for(;u&&u>i.ch&&p.charCodeAt(p.length-c-1)==g.charCodeAt(g.length-c-1);)u--,c++;s[s.length-1]=p.slice(0,p.length-c).replace(/^\u200b+/,""),s[0]=s[0].slice(u).replace(/\u200b+$/,"");l=tt(e,u),r=tt(o,a.length?Y(a).length-c:0);return 1<s.length||s[0]||nt(l,r)?(qi(t.doc,s,l,r,"+input"),!0):void 0},e.prototype.ensurePolled=function(){this.forceCompositionEnd()},e.prototype.reset=function(){this.forceCompositionEnd()},e.prototype.forceCompositionEnd=function(){this.composing&&(clearTimeout(this.readDOMTimeout),this.composing=null,this.updateFromDOM(),this.div.blur(),this.div.focus())},e.prototype.readFromDOMSoon=function(){var e=this;null==this.readDOMTimeout&&(this.readDOMTimeout=setTimeout(function(){if(e.readDOMTimeout=null,e.composing){if(!e.composing.done)return;e.composing=null}e.updateFromDOM()},80))},e.prototype.updateFromDOM=function(){var e=this;!this.cm.isReadOnly()&&this.pollContent()||Pr(this.cm,function(){return tr(e.cm)})},e.prototype.setUneditable=function(e){e.contentEditable="false"},e.prototype.onKeyPress=function(e){0==e.charCode||this.composing||(e.preventDefault(),this.cm.isReadOnly()||Er(this.cm,gl)(this.cm,String.fromCharCode(null==e.charCode?e.keyCode:e.charCode),0))},e.prototype.readOnlyChanged=function(e){this.div.contentEditable=String("nocursor"!=e)},e.prototype.onContextMenu=function(){},e.prototype.resetPosition=function(){},e.prototype.needsContentAttribute=!0;var Tl,Ml,Nl,Ol,Al,r=function(e){this.cm=e,this.prevInput="",this.pollingFast=!1,this.polling=new I,this.hasSelection=!1,this.composing=null};function Dl(e,t,r,n){Tl.defaults[e]=t,r&&(Ml[e]=n?function(e,t,n){n!=ol&&r(e,t,n)}:r)}r.prototype.init=function(n){var e=this,r=this,i=this.cm;this.createField(n);var o=this.textarea;function t(e){if(!we(i,e)){if(i.somethingSelected())pl({lineWise:!1,text:i.getSelections()});else{if(!i.options.lineWiseCopyCut)return;var t=yl(i);pl({lineWise:!0,text:t.text}),"cut"==e.type?i.setSelections(t.ranges,null,G):(r.prevInput="",o.value=t.text.join("\n"),H(o))}"cut"==e.type&&(i.state.cutIncoming=+new Date)}}n.wrapper.insertBefore(this.wrapper,n.wrapper.firstChild),s&&(o.style.width="0px"),me(o,"input",function(){w&&9<=v&&e.hasSelection&&(e.hasSelection=null),r.poll()}),me(o,"paste",function(e){we(i,e)||ml(e,i)||(i.state.pasteIncoming=+new Date,r.fastPoll())}),me(o,"cut",t),me(o,"copy",t),me(n.scroller,"paste",function(e){if(!pn(n,e)&&!we(i,e)){if(!o.dispatchEvent)return i.state.pasteIncoming=+new Date,void r.focus();var t=new Event("paste");t.clipboardData=e.clipboardData,o.dispatchEvent(t)}}),me(n.lineSpace,"selectstart",function(e){pn(n,e)||Le(e)}),me(o,"compositionstart",function(){var e=i.getCursor("from");r.composing&&r.composing.range.clear(),r.composing={start:e,range:i.markText(e,i.getCursor("to"),{className:"CodeMirror-composing"})}}),me(o,"compositionend",function(){r.composing&&(r.poll(),r.composing.range.clear(),r.composing=null)})},r.prototype.createField=function(e){this.wrapper=wl(),this.textarea=this.wrapper.firstChild},r.prototype.screenReaderLabelChanged=function(e){e?this.textarea.setAttribute("aria-label",e):this.textarea.removeAttribute("aria-label")},r.prototype.prepareSelection=function(){var e,t=this.cm,n=t.display,r=t.doc,i=sr(t);return t.options.moveInputWithCursor&&(e=Rn(t,r.sel.primary().head,"div"),t=n.wrapper.getBoundingClientRect(),r=n.lineDiv.getBoundingClientRect(),i.teTop=Math.max(0,Math.min(n.wrapper.clientHeight-10,e.top+r.top-t.top)),i.teLeft=Math.max(0,Math.min(n.wrapper.clientWidth-10,e.left+r.left-t.left))),i},r.prototype.showSelection=function(e){var t=this.cm.display;k(t.cursorDiv,e.cursors),k(t.selectionDiv,e.selection),null!=e.teTop&&(this.wrapper.style.top=e.teTop+"px",this.wrapper.style.left=e.teLeft+"px")},r.prototype.reset=function(e){var t,n;this.contextMenuPending||this.composing||((t=this.cm).somethingSelected()?(this.prevInput="",n=t.getSelection(),this.textarea.value=n,t.state.focused&&H(this.textarea),w&&9<=v&&(this.hasSelection=n)):e||(this.prevInput=this.textarea.value="",w&&9<=v&&(this.hasSelection=null)))},r.prototype.getField=function(){return this.textarea},r.prototype.supportsTouch=function(){return!1},r.prototype.focus=function(){if("nocursor"!=this.cm.options.readOnly&&(!h||O()!=this.textarea))try{this.textarea.focus()}catch(e){}},r.prototype.blur=function(){this.textarea.blur()},r.prototype.resetPosition=function(){this.wrapper.style.top=this.wrapper.style.left=0},r.prototype.receivedFocus=function(){this.slowPoll()},r.prototype.slowPoll=function(){var e=this;this.pollingFast||this.polling.set(this.cm.options.pollInterval,function(){e.poll(),e.cm.state.focused&&e.slowPoll()})},r.prototype.fastPoll=function(){var t=!1,n=this;n.pollingFast=!0,n.polling.set(20,function e(){n.poll()||t?(n.pollingFast=!1,n.slowPoll()):(t=!0,n.polling.set(60,e))})},r.prototype.poll=function(){var e=this,t=this.cm,n=this.textarea,r=this.prevInput;if(this.contextMenuPending||!t.state.focused||Fe(n)&&!r&&!this.composing||t.isReadOnly()||t.options.disableInput||t.state.keySeq)return!1;var i=n.value;if(i==r&&!t.somethingSelected())return!1;if(w&&9<=v&&this.hasSelection===i||g&&/[\uf700-\uf7ff]/.test(i))return t.display.input.reset(),!1;if(t.doc.sel==t.display.selForContextMenu){var o=i.charCodeAt(0);if(8203!=o||r||(r=""),8666==o)return this.reset(),this.cm.execCommand("undo")}for(var l=0,s=Math.min(r.length,i.length);l<s&&r.charCodeAt(l)==i.charCodeAt(l);)++l;return Pr(t,function(){gl(t,i.slice(l),r.length-l,null,e.composing?"*compose":null),1e3<i.length||-1<i.indexOf("\n")?n.value=e.prevInput="":e.prevInput=i,e.composing&&(e.composing.range.clear(),e.composing.range=t.markText(e.composing.start,t.getCursor("to"),{className:"CodeMirror-composing"}))}),!0},r.prototype.ensurePolled=function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},r.prototype.onKeyPress=function(){w&&9<=v&&(this.hasSelection=null),this.fastPoll()},r.prototype.onContextMenu=function(e){var n=this,r=n.cm,i=r.display,o=n.textarea;n.contextMenuPending&&n.contextMenuPending();var l,s,t,a,u=Jn(r,e),c=i.scroller.scrollTop;function h(){var e,t;null!=o.selectionStart&&(t=""+((e=r.somethingSelected())?o.value:""),o.value="⇚",o.value=t,n.prevInput=e?"":"",o.selectionStart=1,o.selectionEnd=t.length,i.selForContextMenu=r.doc.sel)}function d(){var e,t;n.contextMenuPending==d&&(n.contextMenuPending=!1,n.wrapper.style.cssText=s,o.style.cssText=l,w&&v<9&&i.scrollbars.setScrollTop(i.scroller.scrollTop=c),null!=o.selectionStart&&((!w||v<9)&&h(),e=0,t=function(){i.selForContextMenu==r.doc.sel&&0==o.selectionStart&&0<o.selectionEnd&&""==n.prevInput?Er(r,Vi)(r):e++<10?i.detectingSelectAll=setTimeout(t,500):(i.selForContextMenu=null,i.input.reset())},i.detectingSelectAll=setTimeout(t,200)))}u&&!p&&(r.options.resetSelectionOnContextMenu&&-1==r.doc.sel.contains(u)&&Er(r,Pi)(r.doc,si(u),G),l=o.style.cssText,s=n.wrapper.style.cssText,u=n.wrapper.offsetParent.getBoundingClientRect(),n.wrapper.style.cssText="position: static",o.style.cssText="position: absolute; width: 30px; height: 30px;\n top: "+(e.clientY-u.top-5)+"px; left: "+(e.clientX-u.left-5)+"px;\n z-index: 1000; background: "+(w?"rgba(255, 255, 255, .05)":"transparent")+";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);",f&&(t=window.scrollY),i.input.focus(),f&&window.scrollTo(null,t),i.input.reset(),r.somethingSelected()||(o.value=n.prevInput=" "),n.contextMenuPending=d,i.selForContextMenu=r.doc.sel,clearTimeout(i.detectingSelectAll),w&&9<=v&&h(),x?(Me(e),a=function(){ye(window,"mouseup",a),setTimeout(d,20)},me(window,"mouseup",a)):setTimeout(d,50))},r.prototype.readOnlyChanged=function(e){e||this.reset(),this.textarea.disabled="nocursor"==e,this.textarea.readOnly=!!e},r.prototype.setUneditable=function(){},r.prototype.needsContentAttribute=!1,Ml=(Tl=cl).optionHandlers,Tl.defineOption=Dl,Tl.Init=ol,Dl("value","",function(e,t){return e.setValue(t)},!0),Dl("mode",null,function(e,t){e.doc.modeOption=t,di(e)},!0),Dl("indentUnit",2,di,!0),Dl("indentWithTabs",!1),Dl("smartIndent",!0),Dl("tabSize",4,function(e){fi(e),Dn(e),tr(e)},!0),Dl("lineSeparator",null,function(e,r){if(e.doc.lineSep=r){var i=[],o=e.doc.first;e.doc.iter(function(e){for(var t=0;;){var n=e.text.indexOf(r,t);if(-1==n)break;t=n+r.length,i.push(tt(o,n))}o++});for(var t=i.length-1;0<=t;t--)qi(e.doc,r,i[t],tt(i[t].line,i[t].ch+r.length))}}),Dl("specialChars",/[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b\u200e\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g,function(e,t,n){e.state.specialChars=new RegExp(t.source+(t.test("\t")?"":"|\t"),"g"),n!=ol&&e.refresh()}),Dl("specialCharPlaceholder",$t,function(e){return e.refresh()},!0),Dl("electricChars",!0),Dl("inputStyle",h?"contenteditable":"textarea",function(){throw new Error("inputStyle can not (yet) be changed in a running editor")},!0),Dl("spellcheck",!1,function(e,t){return e.getInputField().spellcheck=t},!0),Dl("autocorrect",!1,function(e,t){return e.getInputField().autocorrect=t},!0),Dl("autocapitalize",!1,function(e,t){return e.getInputField().autocapitalize=t},!0),Dl("rtlMoveVisually",!y),Dl("wholeLineUpdateBefore",!0),Dl("theme","default",function(e){il(e),Zr(e)},!0),Dl("keyMap","default",function(e,t,n){t=Wo(t),n=n!=ol&&Wo(n);n&&n.detach&&n.detach(e,t),t.attach&&t.attach(e,n||null)}),Dl("extraKeys",null),Dl("configureMouse",null),Dl("lineWrapping",!1,ul,!0),Dl("gutters",[],function(e,t){e.display.gutterSpecs=$r(t,e.options.lineNumbers),Zr(e)},!0),Dl("fixedGutter",!0,function(e,t){e.display.gutters.style.left=t?qn(e.display)+"px":"0",e.refresh()},!0),Dl("coverGutterNextToScrollbar",!1,function(e){return Nr(e)},!0),Dl("scrollbarStyle","native",function(e){Dr(e),Nr(e),e.display.scrollbars.setScrollTop(e.doc.scrollTop),e.display.scrollbars.setScrollLeft(e.doc.scrollLeft)},!0),Dl("lineNumbers",!1,function(e,t){e.display.gutterSpecs=$r(e.options.gutters,t),Zr(e)},!0),Dl("firstLineNumber",1,Zr,!0),Dl("lineNumberFormatter",function(e){return e},Zr,!0),Dl("showCursorWhenSelecting",!1,lr,!0),Dl("resetSelectionOnContextMenu",!0),Dl("lineWiseCopyCut",!0),Dl("pasteLinesPerSelection",!0),Dl("selectionsMayTouch",!1),Dl("readOnly",!1,function(e,t){"nocursor"==t&&(pr(e),e.display.input.blur()),e.display.input.readOnlyChanged(t)}),Dl("screenReaderLabel",null,function(e,t){e.display.input.screenReaderLabelChanged(t=""===t?null:t)}),Dl("disableInput",!1,function(e,t){t||e.display.input.reset()},!0),Dl("dragDrop",!0,al),Dl("allowDropFileTypes",null),Dl("cursorBlinkRate",530),Dl("cursorScrollMargin",0),Dl("cursorHeight",1,lr,!0),Dl("singleCursorHeightPerLine",!0,lr,!0),Dl("workTime",100),Dl("workDelay",100),Dl("flattenSpans",!0,fi,!0),Dl("addModeClass",!1,fi,!0),Dl("pollInterval",100),Dl("undoDepth",200,function(e,t){return e.doc.history.undoDepth=t}),Dl("historyEventDelay",1250),Dl("viewportMargin",10,function(e){return e.refresh()},!0),Dl("maxHighlightLength",1e4,fi,!0),Dl("moveInputWithCursor",!0,function(e,t){t||e.display.input.resetPosition()}),Dl("tabindex",null,function(e,t){return e.display.input.getField().tabIndex=t||""}),Dl("autofocus",null),Dl("direction","ltr",function(e,t){return e.doc.setDirection(t)},!0),Dl("phrases",null),Ol=(Nl=cl).optionHandlers,Al=Nl.helpers={},Nl.prototype={constructor:Nl,focus:function(){window.focus(),this.display.input.focus()},setOption:function(e,t){var n=this.options,r=n[e];n[e]==t&&"mode"!=e||(n[e]=t,Ol.hasOwnProperty(e)&&Er(this,Ol[e])(this,t,r),be(this,"optionChange",this,e))},getOption:function(e){return this.options[e]},getDoc:function(){return this.doc},addKeyMap:function(e,t){this.state.keyMaps[t?"push":"unshift"](Wo(e))},removeKeyMap:function(e){for(var t=this.state.keyMaps,n=0;n<t.length;++n)if(t[n]==e||t[n].name==e)return t.splice(n,1),!0},addOverlay:Ir(function(e,t){var n=e.token?e:Nl.getMode(this.options,e);if(n.startState)throw new Error("Overlays may not be stateful.");!function(e,t,n){for(var r=0,i=n(t);r<e.length&&n(e[r])<=i;)r++;e.splice(r,0,t)}(this.state.overlays,{mode:n,modeSpec:e,opaque:t&&t.opaque,priority:t&&t.priority||0},function(e){return e.priority}),this.state.modeGen++,tr(this)}),removeOverlay:Ir(function(e){for(var t=this.state.overlays,n=0;n<t.length;++n){var r=t[n].modeSpec;if(r==e||"string"==typeof e&&r.name==e)return t.splice(n,1),this.state.modeGen++,void tr(this)}}),indentLine:Ir(function(e,t,n){"string"!=typeof t&&"number"!=typeof t&&(t=null==t?this.options.smartIndent?"smart":"prev":t?"add":"subtract"),Je(this.doc,e)&&dl(this,e,t,n)}),indentSelection:Ir(function(e){for(var t=this.doc.sel.ranges,n=-1,r=0;r<t.length;r++){var i=t[r];if(i.empty())i.head.line>n&&(dl(this,i.head.line,e,!0),n=i.head.line,r==this.doc.sel.primIndex&&wr(this));else{for(var o=i.from(),l=i.to(),i=Math.max(n,o.line),n=Math.min(this.lastLine(),l.line-(l.ch?0:1))+1,s=i;s<n;++s)dl(this,s,e);i=this.doc.sel.ranges;0==o.ch&&t.length==i.length&&0<i[r].from().ch&&Wi(this.doc,r,new oi(o,i[r].to()),G)}}}),getTokenAt:function(e,t){return bt(this,e,t)},getLineTokens:function(e,t){return bt(this,tt(e),t,!0)},getTokenTypeAt:function(e){e=at(this.doc,e);var t,n=ft(this,Ye(this.doc,e.line)),r=0,i=(n.length-1)/2,o=e.ch;if(0==o)t=n[2];else for(;;){var l=r+i>>1;if((l?n[2*l-1]:0)>=o)i=l;else{if(!(n[2*l+1]<o)){t=n[2*l+2];break}r=1+l}}e=t?t.indexOf("overlay "):-1;return e<0?t:0==e?null:t.slice(0,e-1)},getModeAt:function(e){var t=this.doc.mode;return t.innerMode?Nl.innerMode(t,this.getTokenAt(e).state).mode:t},getHelper:function(e,t){return this.getHelpers(e,t)[0]},getHelpers:function(e,t){var n=[];if(!Al.hasOwnProperty(t))return n;var r=Al[t],i=this.getModeAt(e);if("string"==typeof i[t])r[i[t]]&&n.push(r[i[t]]);else if(i[t])for(var o=0;o<i[t].length;o++){var l=r[i[t][o]];l&&n.push(l)}else i.helperType&&r[i.helperType]?n.push(r[i.helperType]):r[i.name]&&n.push(r[i.name]);for(var s=0;s<r._global.length;s++){var a=r._global[s];a.pred(i,this)&&-1==R(n,a.val)&&n.push(a.val)}return n},getStateAfter:function(e,t){var n=this.doc;return pt(this,(e=st(n,null==e?n.first+n.size-1:e))+1,t).state},cursorCoords:function(e,t){var n=this.doc.sel.primary(),n=null==e?n.head:"object"==typeof e?at(this.doc,e):e?n.from():n.to();return Rn(this,n,t||"page")},charCoords:function(e,t){return In(this,at(this.doc,e),t||"page")},coordsChar:function(e,t){return Gn(this,(e=En(this,e,t||"page")).left,e.top)},lineAtHeight:function(e,t){return e=En(this,{top:e,left:0},t||"page").top,Qe(this.doc,e+this.display.viewOffset)},heightAtLine:function(e,t,n){var r,i=!1,e="number"==typeof e?(r=this.doc.first+this.doc.size-1,e<this.doc.first?e=this.doc.first:r<e&&(e=r,i=!0),Ye(this.doc,e)):e;return 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o,l,s=this.display,a=(e=Rn(this,at(this.doc,e))).bottom,u=e.left;t.style.position="absolute",t.setAttribute("cm-ignore-events","true"),this.display.input.setUneditable(t),s.sizer.appendChild(t),"over"==r?a=e.top:"above"!=r&&"near"!=r||(o=Math.max(s.wrapper.clientHeight,this.doc.height),l=Math.max(s.sizer.clientWidth,s.lineSpace.clientWidth),("above"==r||e.bottom+t.offsetHeight>o)&&e.top>t.offsetHeight?a=e.top-t.offsetHeight:e.bottom+t.offsetHeight<=o&&(a=e.bottom),u+t.offsetWidth>l&&(u=l-t.offsetWidth)),t.style.top=a+"px",t.style.left=t.style.right="","right"==i?(u=s.sizer.clientWidth-t.offsetWidth,t.style.right="0px"):("left"==i?u=0:"middle"==i&&(u=(s.sizer.clientWidth-t.offsetWidth)/2),t.style.left=u+"px"),n&&(n=this,t={left:u,top:a,right:u+t.offsetWidth,bottom:a+t.offsetHeight},null!=(t=yr(n,t)).scrollTop&&Lr(n,t.scrollTop),null!=t.scrollLeft&&Tr(n,t.scrollLeft))},triggerOnKeyDown:Ir(Yo),triggerOnKeyPress:Ir($o),triggerOnKeyUp:_o,triggerOnMouseDown:Ir(Jo),execCommand:function(e){if(Ro.hasOwnProperty(e))return Ro[e].call(null,this)},triggerElectric:Ir(function(e){vl(this,e)}),findPosH:function(e,t,n,r){var i=1;t<0&&(i=-1,t=-t);for(var o=at(this.doc,e),l=0;l<t&&!(o=xl(this.doc,o,i,n,r)).hitSide;++l);return o},moveH:Ir(function(t,n){var r=this;this.extendSelectionsBy(function(e){return r.display.shift||r.doc.extend||e.empty()?xl(r.doc,e.head,t,n,r.options.rtlMoveVisually):t<0?e.from():e.to()},V)}),deleteH:Ir(function(n,r){var e=this.doc.sel,i=this.doc;e.somethingSelected()?i.replaceSelection("",null,"+delete"):Ho(this,function(e){var t=xl(i,e.head,n,r,!1);return n<0?{from:t,to:e.head}:{from:e.head,to:t}})}),findPosV:function(e,t,n,r){var i=1,o=r;t<0&&(i=-1,t=-t);for(var l=at(this.doc,e),s=0;s<t;++s){var a=Rn(this,l,"div");if(null==o?o=a.left:a.left=o,(l=Cl(this,a,i,n)).hitSide)break}return l},moveV:Ir(function(r,i){var o=this,l=this.doc,s=[],a=!this.display.shift&&!l.extend&&l.sel.somethingSelected();if(l.extendSelectionsBy(function(e){if(a)return r<0?e.from():e.to();var t=Rn(o,e.head,"div");null!=e.goalColumn&&(t.left=e.goalColumn),s.push(t.left);var n=Cl(o,t,r,i);return"page"==i&&e==l.sel.primary()&&br(o,In(o,n,"div").top-t.top),n},V),s.length)for(var e=0;e<l.sel.ranges.length;e++)l.sel.ranges[e].goalColumn=s[e]}),findWordAt:function(e){var t=Ye(this.doc,e.line).text,n=e.ch,r=e.ch;if(t){var i=this.getHelper(e,"wordChars");"before"!=e.sticky&&r!=t.length||!n?++r:--n;for(var o=t.charAt(n),l=J(o,i)?function(e){return J(e,i)}:/\s/.test(o)?function(e){return/\s/.test(e)}:function(e){return!/\s/.test(e)&&!J(e)};0<n&&l(t.charAt(n-1));)--n;for(;r<t.length&&l(t.charAt(r));)++r}return new oi(tt(e.line,n),tt(e.line,r))},toggleOverwrite:function(e){null!=e&&e==this.state.overwrite||(((this.state.overwrite=!this.state.overwrite)?A:S)(this.display.cursorDiv,"CodeMirror-overwrite"),be(this,"overwriteToggle",this,this.state.overwrite))},hasFocus:function(){return this.display.input.getField()==O()},isReadOnly:function(){return!(!this.options.readOnly&&!this.doc.cantEdit)},scrollTo:Ir(function(e,t){xr(this,e,t)}),getScrollInfo:function(){var e=this.display.scroller;return{left:e.scrollLeft,top:e.scrollTop,height:e.scrollHeight-yn(this)-this.display.barHeight,width:e.scrollWidth-yn(this)-this.display.barWidth,clientHeight:wn(this),clientWidth:bn(this)}},scrollIntoView:Ir(function(e,t){var n;null==e?(e={from:this.doc.sel.primary().head,to:null},null==t&&(t=this.options.cursorScrollMargin)):"number"==typeof e?e={from:tt(e,0),to:null}:null==e.from&&(e={from:e,to:null}),e.to||(e.to=e.from),e.margin=t||0,null!=e.from.line?(n=e,Cr(t=this),t.curOp.scrollToPos=n):Sr(this,e.from,e.to,e.margin)}),setSize:Ir(function(e,t){function n(e){return"number"==typeof e||/^\d+$/.test(String(e))?e+"px":e}var r=this;null!=e&&(this.display.wrapper.style.width=n(e)),null!=t&&(this.display.wrapper.style.height=n(t)),this.options.lineWrapping&&An(this);var i=this.display.viewFrom;this.doc.iter(i,this.display.viewTo,function(e){if(e.widgets)for(var t=0;t<e.widgets.length;t++)if(e.widgets[t].noHScroll){nr(r,i,"widget");break}++i}),this.curOp.forceUpdate=!0,be(this,"refresh",this)}),operation:function(e){return Pr(this,e)},startOperation:function(){return Hr(this)},endOperation:function(){return Fr(this)},refresh:Ir(function(){var e=this.display.cachedTextHeight;tr(this),this.curOp.forceUpdate=!0,Dn(this),xr(this,this.doc.scrollLeft,this.doc.scrollTop),jr(this.display),(null==e||.5<Math.abs(e-Yn(this.display))||this.options.lineWrapping)&&Qn(this),be(this,"refresh",this)}),swapDoc:Ir(function(e){var t=this.doc;return t.cm=null,this.state.selectingText&&this.state.selectingText(),vi(this,e),Dn(this),this.display.input.reset(),xr(this,e.scrollLeft,e.scrollTop),this.curOp.forceScroll=!0,rn(this,"swapDoc",this,t),t}),phrase:function(e){var t=this.options.phrases;return t&&Object.prototype.hasOwnProperty.call(t,e)?t[e]:e},getInputField:function(){return this.display.input.getField()},getWrapperElement:function(){return this.display.wrapper},getScrollerElement:function(){return this.display.scroller},getGutterElement:function(){return this.display.gutters}},Se(Nl),Nl.registerHelper=function(e,t,n){Al.hasOwnProperty(e)||(Al[e]=Nl[e]={_global:[]}),Al[e][t]=n},Nl.registerGlobalHelper=function(e,t,n,r){Nl.registerHelper(e,t,r),Al[e]._global.push({pred:n,val:r})};var Wl,Hl,Fl="iter insert remove copy getEditor constructor".split(" ");for(Wl in ho.prototype)ho.prototype.hasOwnProperty(Wl)&&R(Fl,Wl)<0&&(cl.prototype[Wl]=function(e){return function(){return e.apply(this.doc,arguments)}}(ho.prototype[Wl]));return Se(ho),cl.inputStyles={textarea:r,contenteditable:e},cl.defineMode=function(e){cl.defaults.mode||"null"==e||(cl.defaults.mode=e),function(e,t){2<arguments.length&&(t.dependencies=Array.prototype.slice.call(arguments,2)),Ie[e]=t}.apply(this,arguments)},cl.defineMIME=function(e,t){Re[e]=t},cl.defineMode("null",function(){return{token:function(e){return e.skipToEnd()}}}),cl.defineMIME("text/plain","null"),cl.defineExtension=function(e,t){cl.prototype[e]=t},cl.defineDocExtension=function(e,t){ho.prototype[e]=t},cl.fromTextArea=function(t,n){var e;function r(){t.value=s.getValue()}if((n=n?P(n):{}).value=t.value,!n.tabindex&&t.tabIndex&&(n.tabindex=t.tabIndex),!n.placeholder&&t.placeholder&&(n.placeholder=t.placeholder),null==n.autofocus&&(e=O(),n.autofocus=e==t||null!=t.getAttribute("autofocus")&&e==document.body),t.form&&(me(t.form,"submit",r),!n.leaveSubmitMethodAlone)){var i=t.form,o=i.submit;try{var l=i.submit=function(){r(),i.submit=o,i.submit(),i.submit=l}}catch(e){}}n.finishInit=function(e){e.save=r,e.getTextArea=function(){return t},e.toTextArea=function(){e.toTextArea=isNaN,r(),t.parentNode.removeChild(e.getWrapperElement()),t.style.display="",t.form&&(ye(t.form,"submit",r),n.leaveSubmitMethodAlone||"function"!=typeof t.form.submit||(t.form.submit=o))}},t.style.display="none";var s=cl(function(e){return t.parentNode.insertBefore(e,t.nextSibling)},n);return s},(Hl=cl).off=ye,Hl.on=me,Hl.wheelEventPixels=ni,Hl.Doc=ho,Hl.splitLines=He,Hl.countColumn=E,Hl.findColumn=K,Hl.isWordChar=Q,Hl.Pass=B,Hl.signal=be,Hl.Line=Kt,Hl.changeEnd=ai,Hl.scrollbarModel=Ar,Hl.Pos=tt,Hl.cmpPos=nt,Hl.modes=Ie,Hl.mimeModes=Re,Hl.resolveMode=ze,Hl.getMode=Be,Hl.modeExtensions=Ge,Hl.extendMode=Ue,Hl.copyState=Ve,Hl.startState=je,Hl.innerMode=Ke,Hl.commands=Ro,Hl.keyMap=ko,Hl.keyName=Do,Hl.isModifierKey=Oo,Hl.lookupKey=No,Hl.normalizeKeyMap=Mo,Hl.StringStream=Xe,Hl.SharedTextMarker=ao,Hl.TextMarker=oo,Hl.LineWidget=ro,Hl.e_preventDefault=Le,Hl.e_stopPropagation=ke,Hl.e_stop=Me,Hl.addClass=A,Hl.contains=N,Hl.rmClass=S,Hl.keyNames=xo,cl.version="5.63.1",cl});

assets/js/hyperscript@0.9.6.js ADDED Viewed

@@ -0,0 +1,7351 @@
+'use strict';
+/**
+ * @typedef {Object} Hyperscript
+ */
+(function (self, factory) {
+    const _hyperscript = factory(self)
+    if (typeof exports === 'object' && typeof exports['nodeName'] !== 'string') {
+        module.exports = _hyperscript
+    } else {
+        self['_hyperscript'] = _hyperscript
+        if ('document' in self) self['_hyperscript'].browserInit()
+    }
+})(typeof self !== 'undefined' ? self : this, (globalScope) => {
+    /**
+     * @type {Object}
+     * @property {DynamicConverter[]} dynamicResolvers
+     *
+     * @callback DynamicConverter
+     * @param {String} str
+     * @param {*} value
+     * @returns {*}
+     */
+    const conversions = {
+        dynamicResolvers: [
+            function(str, value){
+                if (str === "Fixed") {
+                    return Number(value).toFixed();
+                } else if (str.indexOf("Fixed:") === 0) {
+                    let num = str.split(":")[1];
+                    return Number(value).toFixed(parseInt(num));
+                }
+            }
+        ],
+        String: function (val) {
+            if (val.toString) {
+                return val.toString();
+            } else {
+                return "" + val;
+            }
+        },
+        Int: function (val) {
+            return parseInt(val);
+        },
+        Float: function (val) {
+            return parseFloat(val);
+        },
+        Number: function (val) {
+            return Number(val);
+        },
+        Date: function (val) {
+            return new Date(val);
+        },
+        Array: function (val) {
+            return Array.from(val);
+        },
+        JSON: function (val) {
+            return JSON.stringify(val);
+        },
+        Object: function (val) {
+            if (val instanceof String) {
+                val = val.toString();
+            }
+            if (typeof val === "string") {
+                return JSON.parse(val);
+            } else {
+                return Object.assign({}, val);
+            }
+        },
+    }
+    const config = {
+        attributes: "_, script, data-script",
+        defaultTransition: "all 500ms ease-in",
+        disableSelector: "[disable-scripting], [data-disable-scripting]",
+        conversions,
+    }
+    class Lexer {
+        static OP_TABLE = {
+            "+": "PLUS",
+            "-": "MINUS",
+            "*": "MULTIPLY",
+            "/": "DIVIDE",
+            ".": "PERIOD",
+            "..": "ELLIPSIS",
+            "\\": "BACKSLASH",
+            ":": "COLON",
+            "%": "PERCENT",
+            "|": "PIPE",
+            "!": "EXCLAMATION",
+            "?": "QUESTION",
+            "#": "POUND",
+            "&": "AMPERSAND",
+            $: "DOLLAR",
+            ";": "SEMI",
+            ",": "COMMA",
+            "(": "L_PAREN",
+            ")": "R_PAREN",
+            "<": "L_ANG",
+            ">": "R_ANG",
+            "<=": "LTE_ANG",
+            ">=": "GTE_ANG",
+            "==": "EQ",
+            "===": "EQQ",
+            "!=": "NEQ",
+            "!==": "NEQQ",
+            "{": "L_BRACE",
+            "}": "R_BRACE",
+            "[": "L_BRACKET",
+            "]": "R_BRACKET",
+            "=": "EQUALS",
+        };
+        /**
+         * isValidCSSClassChar returns `true` if the provided character is valid in a CSS class.
+         * @param {string} c
+         * @returns boolean
+         */
+        static isValidCSSClassChar(c) {
+            return Lexer.isAlpha(c) || Lexer.isNumeric(c) || c === "-" || c === "_" || c === ":";
+        }
+        /**
+         * isValidCSSIDChar returns `true` if the provided character is valid in a CSS ID
+         * @param {string} c
+         * @returns boolean
+         */
+        static isValidCSSIDChar(c) {
+            return Lexer.isAlpha(c) || Lexer.isNumeric(c) || c === "-" || c === "_" || c === ":";
+        }
+        /**
+         * isWhitespace returns `true` if the provided character is whitespace.
+         * @param {string} c
+         * @returns boolean
+         */
+        static isWhitespace(c) {
+            return c === " " || c === "\t" || Lexer.isNewline(c);
+        }
+        /**
+         * positionString returns a string representation of a Token's line and column details.
+         * @param {Token} token
+         * @returns string
+         */
+        static positionString(token) {
+            return "[Line: " + token.line + ", Column: " + token.column + "]";
+        }
+        /**
+         * isNewline returns `true` if the provided character is a carrage return or newline
+         * @param {string} c
+         * @returns boolean
+         */
+        static isNewline(c) {
+            return c === "\r" || c === "\n";
+        }
+        /**
+         * isNumeric returns `true` if the provided character is a number (0-9)
+         * @param {string} c
+         * @returns boolean
+         */
+        static isNumeric(c) {
+            return c >= "0" && c <= "9";
+        }
+        /**
+         * isAlpha returns `true` if the provided character is a letter in the alphabet
+         * @param {string} c
+         * @returns boolean
+         */
+        static isAlpha(c) {
+            return (c >= "a" && c <= "z") || (c >= "A" && c <= "Z");
+        }
+        /**
+         * @param {string} c
+         * @param {boolean} [dollarIsOp]
+         * @returns boolean
+         */
+        static isIdentifierChar(c, dollarIsOp) {
+            return c === "_" || c === "$";
+        }
+        /**
+         * @param {string} c
+         * @returns boolean
+         */
+        static isReservedChar(c) {
+            return c === "`" || c === "^";
+        }
+        /**
+         * @param {Token[]} tokens
+         * @returns {boolean}
+         */
+        static isValidSingleQuoteStringStart(tokens) {
+            if (tokens.length > 0) {
+                var previousToken = tokens[tokens.length - 1];
+                if (
+                    previousToken.type === "IDENTIFIER" ||
+                    previousToken.type === "CLASS_REF" ||
+                    previousToken.type === "ID_REF"
+                ) {
+                    return false;
+                }
+                if (previousToken.op && (previousToken.value === ">" || previousToken.value === ")")) {
+                    return false;
+                }
+            }
+            return true;
+        }
+        /**
+         * @param {string} string
+         * @param {boolean} [template]
+         * @returns {Tokens}
+         */
+        static tokenize(string, template) {
+            var tokens = /** @type {Token[]}*/ [];
+            var source = string;
+            var position = 0;
+            var column = 0;
+            var line = 1;
+            var lastToken = "<START>";
+            var templateBraceCount = 0;
+            function inTemplate() {
+                return template && templateBraceCount === 0;
+            }
+            while (position < source.length) {
+                if (currentChar() === "-" && nextChar() === "-" && (Lexer.isWhitespace(charAfterThat()) || charAfterThat() === "")) {
+                    consumeComment();
+                } else {
+                    if (Lexer.isWhitespace(currentChar())) {
+                        tokens.push(consumeWhitespace());
+                    } else if (
+                        !possiblePrecedingSymbol() &&
+                        currentChar() === "." &&
+                        (Lexer.isAlpha(nextChar()) || nextChar() === "{")
+                    ) {
+                        tokens.push(consumeClassReference());
+                    } else if (
+                        !possiblePrecedingSymbol() &&
+                        currentChar() === "#" &&
+                        (Lexer.isAlpha(nextChar()) || nextChar() === "{")
+                    ) {
+                        tokens.push(consumeIdReference());
+                    } else if (currentChar() === "[" && nextChar() === "@") {
+                        tokens.push(consumeAttributeReference());
+                    } else if (currentChar() === "@") {
+                        tokens.push(consumeShortAttributeReference());
+                    } else if (currentChar() === "*" && Lexer.isAlpha(nextChar())) {
+                        tokens.push(consumeStyleReference());
+                    } else if (Lexer.isAlpha(currentChar()) || (!inTemplate() && Lexer.isIdentifierChar(currentChar()))) {
+                        tokens.push(consumeIdentifier());
+                    } else if (Lexer.isNumeric(currentChar())) {
+                        tokens.push(consumeNumber());
+                    } else if (!inTemplate() && (currentChar() === '"' || currentChar() === "`")) {
+                        tokens.push(consumeString());
+                    } else if (!inTemplate() && currentChar() === "'") {
+                        if (Lexer.isValidSingleQuoteStringStart(tokens)) {
+                            tokens.push(consumeString());
+                        } else {
+                            tokens.push(consumeOp());
+                        }
+                    } else if (Lexer.OP_TABLE[currentChar()]) {
+                        if (lastToken === "$" && currentChar() === "{") {
+                            templateBraceCount++;
+                        }
+                        if (currentChar() === "}") {
+                            templateBraceCount--;
+                        }
+                        tokens.push(consumeOp());
+                    } else if (inTemplate() || Lexer.isReservedChar(currentChar())) {
+                        tokens.push(makeToken("RESERVED", consumeChar()));
+                    } else {
+                        if (position < source.length) {
+                            throw Error("Unknown token: " + currentChar() + " ");
+                        }
+                    }
+                }
+            }
+            return new Tokens(tokens, [], source);
+            /**
+             * @param {string} [type]
+             * @param {string} [value]
+             * @returns {Token}
+             */
+            function makeOpToken(type, value) {
+                var token = makeToken(type, value);
+                token.op = true;
+                return token;
+            }
+            /**
+             * @param {string} [type]
+             * @param {string} [value]
+             * @returns {Token}
+             */
+            function makeToken(type, value) {
+                return {
+                    type: type,
+                    value: value,
+                    start: position,
+                    end: position + 1,
+                    column: column,
+                    line: line,
+                };
+            }
+            function consumeComment() {
+                while (currentChar() && !Lexer.isNewline(currentChar())) {
+                    consumeChar();
+                }
+                consumeChar();
+            }
+            /**
+             * @returns Token
+             */
+            function consumeClassReference() {
+                var classRef = makeToken("CLASS_REF");
+                var value = consumeChar();
+                if (currentChar() === "{") {
+                    classRef.template = true;
+                    value += consumeChar();
+                    while (currentChar() && currentChar() !== "}") {
+                        value += consumeChar();
+                    }
+                    if (currentChar() !== "}") {
+                        throw Error("Unterminated class reference");
+                    } else {
+                        value += consumeChar(); // consume final curly
+                    }
+                } else {
+                    while (Lexer.isValidCSSClassChar(currentChar())) {
+                        value += consumeChar();
+                    }
+                }
+                classRef.value = value;
+                classRef.end = position;
+                return classRef;
+            }
+            /**
+             * @returns Token
+             */
+            function consumeAttributeReference() {
+                var attributeRef = makeToken("ATTRIBUTE_REF");
+                var value = consumeChar();
+                while (position < source.length && currentChar() !== "]") {
+                    value += consumeChar();
+                }
+                if (currentChar() === "]") {
+                    value += consumeChar();
+                }
+                attributeRef.value = value;
+                attributeRef.end = position;
+                return attributeRef;
+            }
+            function consumeShortAttributeReference() {
+                var attributeRef = makeToken("ATTRIBUTE_REF");
+                var value = consumeChar();
+                while (Lexer.isValidCSSIDChar(currentChar())) {
+                    value += consumeChar();
+                }
+                attributeRef.value = value;
+                attributeRef.end = position;
+                return attributeRef;
+            }
+            function consumeStyleReference() {
+                var styleRef = makeToken("STYLE_REF");
+                var value = consumeChar();
+                while (Lexer.isAlpha(currentChar()) || currentChar() === "-") {
+                    value += consumeChar();
+                }
+                styleRef.value = value;
+                styleRef.end = position;
+                return styleRef;
+            }
+            /**
+             * @returns Token
+             */
+            function consumeIdReference() {
+                var idRef = makeToken("ID_REF");
+                var value = consumeChar();
+                if (currentChar() === "{") {
+                    idRef.template = true;
+                    value += consumeChar();
+                    while (currentChar() && currentChar() !== "}") {
+                        value += consumeChar();
+                    }
+                    if (currentChar() !== "}") {
+                        throw Error("Unterminated id reference");
+                    } else {
+                        consumeChar(); // consume final quote
+                    }
+                } else {
+                    while (Lexer.isValidCSSIDChar(currentChar())) {
+                        value += consumeChar();
+                    }
+                }
+                idRef.value = value;
+                idRef.end = position;
+                return idRef;
+            }
+            /**
+             * @returns Token
+             */
+            function consumeIdentifier() {
+                var identifier = makeToken("IDENTIFIER");
+                var value = consumeChar();
+                while (Lexer.isAlpha(currentChar()) ||
+                       Lexer.isNumeric(currentChar()) ||
+                       Lexer.isIdentifierChar(currentChar())) {
+                    value += consumeChar();
+                }
+                if (currentChar() === "!" && value === "beep") {
+                    value += consumeChar();
+                }
+                identifier.value = value;
+                identifier.end = position;
+                return identifier;
+            }
+            /**
+             * @returns Token
+             */
+            function consumeNumber() {
+                var number = makeToken("NUMBER");
+                var value = consumeChar();
+                while (Lexer.isNumeric(currentChar())) {
+                    value += consumeChar();
+                }
+                if (currentChar() === "." && Lexer.isNumeric(nextChar())) {
+                    value += consumeChar();
+                }
+                while (Lexer.isNumeric(currentChar())) {
+                    value += consumeChar();
+                }
+                number.value = value;
+                number.end = position;
+                return number;
+            }
+            /**
+             * @returns Token
+             */
+            function consumeOp() {
+                var op = makeOpToken();
+                var value = consumeChar(); // consume leading char
+                while (currentChar() && Lexer.OP_TABLE[value + currentChar()]) {
+                    value += consumeChar();
+                }
+                op.type = Lexer.OP_TABLE[value];
+                op.value = value;
+                op.end = position;
+                return op;
+            }
+            /**
+             * @returns Token
+             */
+            function consumeString() {
+                var string = makeToken("STRING");
+                var startChar = consumeChar(); // consume leading quote
+                var value = "";
+                while (currentChar() && currentChar() !== startChar) {
+                    if (currentChar() === "\\") {
+                        consumeChar(); // consume escape char and get the next one
+                        let nextChar = consumeChar();
+                        if (nextChar === "b") {
+                            value += "\b";
+                        } else if (nextChar === "f") {
+                            value += "\f";
+                        } else if (nextChar === "n") {
+                            value += "\n";
+                        } else if (nextChar === "r") {
+                            value += "\r";
+                        } else if (nextChar === "t") {
+                            value += "\t";
+                        } else if (nextChar === "v") {
+                            value += "\v";
+                        } else {
+                            value += nextChar;
+                        }
+                    } else {
+                        value += consumeChar();
+                    }
+                }
+                if (currentChar() !== startChar) {
+                    throw Error("Unterminated string at " + Lexer.positionString(string));
+                } else {
+                    consumeChar(); // consume final quote
+                }
+                string.value = value;
+                string.end = position;
+                string.template = startChar === "`";
+                return string;
+            }
+            /**
+             * @returns string
+             */
+            function currentChar() {
+                return source.charAt(position);
+            }
+            /**
+             * @returns string
+             */
+            function nextChar() {
+                return source.charAt(position + 1);
+            }
+            function charAfterThat() {
+                return source.charAt(position + 2);
+            }
+            /**
+             * @returns string
+             */
+            function consumeChar() {
+                lastToken = currentChar();
+                position++;
+                column++;
+                return lastToken;
+            }
+            /**
+             * @returns boolean
+             */
+            function possiblePrecedingSymbol() {
+                return (
+                    Lexer.isAlpha(lastToken) ||
+                    Lexer.isNumeric(lastToken) ||
+                    lastToken === ")" ||
+                    lastToken === "\"" ||
+                    lastToken === "'" ||
+                    lastToken === "`" ||
+                    lastToken === "}" ||
+                    lastToken === "]"
+                );
+            }
+            /**
+             * @returns Token
+             */
+            function consumeWhitespace() {
+                var whitespace = makeToken("WHITESPACE");
+                var value = "";
+                while (currentChar() && Lexer.isWhitespace(currentChar())) {
+                    if (Lexer.isNewline(currentChar())) {
+                        column = 0;
+                        line++;
+                    }
+                    value += consumeChar();
+                }
+                whitespace.value = value;
+                whitespace.end = position;
+                return whitespace;
+            }
+        }
+        /**
+         * @param {string} string
+         * @param {boolean} [template]
+         * @returns {Tokens}
+         */
+        tokenize(string, template) {
+            return Lexer.tokenize(string, template)
+        }
+    }
+    /**
+     * @typedef {Object} Token
+     * @property {string} [type]
+     * @property {string} [value]
+     * @property {number} [start]
+     * @property {number} [end]
+     * @property {number} [column]
+     * @property {number} [line]
+     * @property {boolean} [op] `true` if this token represents an operator
+     * @property {boolean} [template] `true` if this token is a template, for class refs, id refs, strings
+     */
+    class Tokens {
+        constructor(tokens, consumed, source) {
+            this.tokens = tokens
+            this.consumed = consumed
+            this.source = source
+            this.consumeWhitespace(); // consume initial whitespace
+        }
+        get list() {
+            return this.tokens
+        }
+        /** @type Token | null */
+        _lastConsumed = null;
+        consumeWhitespace() {
+            while (this.token(0, true).type === "WHITESPACE") {
+                this.consumed.push(this.tokens.shift());
+            }
+        }
+        /**
+         * @param {Tokens} tokens
+         * @param {*} error
+         */
+        raiseError(tokens, error) {
+            Parser.raiseParseError(tokens, error);
+        }
+        /**
+         * @param {string} value
+         * @returns {Token}
+         */
+        requireOpToken(value) {
+            var token = this.matchOpToken(value);
+            if (token) {
+                return token;
+            } else {
+                this.raiseError(this, "Expected '" + value + "' but found '" + this.currentToken().value + "'");
+            }
+        }
+        /**
+         * @param {string} op1
+         * @param {string} [op2]
+         * @param {string} [op3]
+         * @returns {Token | void}
+         */
+        matchAnyOpToken(op1, op2, op3) {
+            for (var i = 0; i < arguments.length; i++) {
+                var opToken = arguments[i];
+                var match = this.matchOpToken(opToken);
+                if (match) {
+                    return match;
+                }
+            }
+        }
+        /**
+         * @param {string} op1
+         * @param {string} [op2]
+         * @param {string} [op3]
+         * @returns {Token | void}
+         */
+        matchAnyToken(op1, op2, op3) {
+            for (var i = 0; i < arguments.length; i++) {
+                var opToken = arguments[i];
+                var match = this.matchToken(opToken);
+                if (match) {
+                    return match;
+                }
+            }
+        }
+        /**
+         * @param {string} value
+         * @returns {Token | void}
+         */
+        matchOpToken(value) {
+            if (this.currentToken() && this.currentToken().op && this.currentToken().value === value) {
+                return this.consumeToken();
+            }
+        }
+        /**
+         * @param {string} type1
+         * @param {string} [type2]
+         * @param {string} [type3]
+         * @param {string} [type4]
+         * @returns {Token}
+         */
+        requireTokenType(type1, type2, type3, type4) {
+            var token = this.matchTokenType(type1, type2, type3, type4);
+            if (token) {
+                return token;
+            } else {
+                this.raiseError(this, "Expected one of " + JSON.stringify([type1, type2, type3]));
+            }
+        }
+        /**
+         * @param {string} type1
+         * @param {string} [type2]
+         * @param {string} [type3]
+         * @param {string} [type4]
+         * @returns {Token | void}
+         */
+        matchTokenType(type1, type2, type3, type4) {
+            if (
+                this.currentToken() &&
+                this.currentToken().type &&
+                [type1, type2, type3, type4].indexOf(this.currentToken().type) >= 0
+            ) {
+                return this.consumeToken();
+            }
+        }
+        /**
+         * @param {string} value
+         * @param {string} [type]
+         * @returns {Token}
+         */
+        requireToken(value, type) {
+            var token = this.matchToken(value, type);
+            if (token) {
+                return token;
+            } else {
+                this.raiseError(this, "Expected '" + value + "' but found '" + this.currentToken().value + "'");
+            }
+        }
+        peekToken(value, peek, type) {
+            return this.tokens[peek] && this.tokens[peek].value === value && this.tokens[peek].type === type
+        }
+        /**
+         * @param {string} value
+         * @param {string} [type]
+         * @returns {Token | void}
+         */
+        matchToken(value, type) {
+            if (this.follows.indexOf(value) !== -1) {
+                return; // disallowed token here
+            }
+            var type = type || "IDENTIFIER";
+            if (this.currentToken() && this.currentToken().value === value && this.currentToken().type === type) {
+                return this.consumeToken();
+            }
+        }
+        /**
+         * @returns {Token}
+         */
+        consumeToken() {
+            var match = this.tokens.shift();
+            this.consumed.push(match);
+            this._lastConsumed = match;
+            this.consumeWhitespace(); // consume any whitespace
+            return match;
+        }
+        /**
+         * @param {string} value
+         * @param {string} [type]
+         * @returns {Token[]}
+         */
+        consumeUntil(value, type) {
+            /** @type Token[] */
+            var tokenList = [];
+            var currentToken = this.token(0, true);
+            while (
+                (type == null || currentToken.type !== type) &&
+                (value == null || currentToken.value !== value) &&
+                currentToken.type !== "EOF"
+            ) {
+                var match = this.tokens.shift();
+                this.consumed.push(match);
+                tokenList.push(currentToken);
+                currentToken = this.token(0, true);
+            }
+            this.consumeWhitespace(); // consume any whitespace
+            return tokenList;
+        }
+        /**
+         * @returns {string}
+         */
+        lastWhitespace() {
+            if (this.consumed[this.consumed.length - 1] && this.consumed[this.consumed.length - 1].type === "WHITESPACE") {
+                return this.consumed[this.consumed.length - 1].value;
+            } else {
+                return "";
+            }
+        }
+        consumeUntilWhitespace() {
+            return this.consumeUntil(null, "WHITESPACE");
+        }
+        /**
+         * @returns {boolean}
+         */
+        hasMore() {
+            return this.tokens.length > 0;
+        }
+        /**
+         * @param {number} n
+         * @param {boolean} [dontIgnoreWhitespace]
+         * @returns {Token}
+         */
+        token(n, dontIgnoreWhitespace) {
+            var /**@type {Token}*/ token;
+            var i = 0;
+            do {
+                if (!dontIgnoreWhitespace) {
+                    while (this.tokens[i] && this.tokens[i].type === "WHITESPACE") {
+                        i++;
+                    }
+                }
+                token = this.tokens[i];
+                n--;
+                i++;
+            } while (n > -1);
+            if (token) {
+                return token;
+            } else {
+                return {
+                    type: "EOF",
+                    value: "<<<EOF>>>",
+                };
+            }
+        }
+        /**
+         * @returns {Token}
+         */
+        currentToken() {
+            return this.token(0);
+        }
+        /**
+         * @returns {Token | null}
+         */
+        lastMatch() {
+            return this._lastConsumed;
+        }
+        /**
+         * @returns {string}
+         */
+        static sourceFor = function () {
+            return this.programSource.substring(this.startToken.start, this.endToken.end);
+        }
+        /**
+         * @returns {string}
+         */
+        static lineFor = function () {
+            return this.programSource.split("\n")[this.startToken.line - 1];
+        }
+        follows = [];
+        pushFollow(str) {
+            this.follows.push(str);
+        }
+        popFollow() {
+            this.follows.pop();
+        }
+        clearFollows() {
+            var tmp = this.follows;
+            this.follows = [];
+            return tmp;
+        }
+        restoreFollows(f) {
+            this.follows = f;
+        }
+    }
+    /**
+     * @callback ParseRule
+     * @param {Parser} parser
+     * @param {Runtime} runtime
+     * @param {Tokens} tokens
+     * @param {*} root
+     * @returns {ASTNode | undefined}
+     *
+     * @typedef {Object} ASTNode
+     * @member {boolean} isFeature
+     * @member {string} type
+     * @member {any[]} args
+     * @member {(this: ASTNode, ctx:Context, root:any, ...args:any) => any} op
+     * @member {(this: ASTNode, context?:Context) => any} evaluate
+     * @member {ASTNode} parent
+     * @member {Set<ASTNode>} children
+     * @member {ASTNode} root
+     * @member {String} keyword
+     * @member {Token} endToken
+     * @member {ASTNode} next
+     * @member {(context:Context) => ASTNode} resolveNext
+     * @member {EventSource} eventSource
+     * @member {(this: ASTNode) => void} install
+     * @member {(this: ASTNode, context:Context) => void} execute
+     * @member {(this: ASTNode, target: object, source: object, args?: Object) => void} apply
+     *
+     *
+     */
+    class Parser {
+        /**
+         *
+         * @param {Runtime} runtime
+         */
+        constructor(runtime) {
+            this.runtime = runtime
+            this.possessivesDisabled = false
+            /* ============================================================================================ */
+            /* Core hyperscript Grammar Elements                                                            */
+            /* ============================================================================================ */
+            this.addGrammarElement("feature", function (parser, runtime, tokens) {
+                if (tokens.matchOpToken("(")) {
+                    var featureElement = parser.requireElement("feature", tokens);
+                    tokens.requireOpToken(")");
+                    return featureElement;
+                }
+                var featureDefinition = parser.FEATURES[tokens.currentToken().value];
+                if (featureDefinition) {
+                    return featureDefinition(parser, runtime, tokens);
+                }
+            });
+            this.addGrammarElement("command", function (parser, runtime, tokens) {
+                if (tokens.matchOpToken("(")) {
+                    const commandElement = parser.requireElement("command", tokens);
+                    tokens.requireOpToken(")");
+                    return commandElement;
+                }
+                var commandDefinition = parser.COMMANDS[tokens.currentToken().value];
+                let commandElement;
+                if (commandDefinition) {
+                    commandElement = commandDefinition(parser, runtime, tokens);
+                } else if (tokens.currentToken().type === "IDENTIFIER") {
+                    commandElement = parser.parseElement("pseudoCommand", tokens);
+                }
+                if (commandElement) {
+                    return parser.parseElement("indirectStatement", tokens, commandElement);
+                }
+                return commandElement;
+            });
+            this.addGrammarElement("commandList", function (parser, runtime, tokens) {
+                var cmd = parser.parseElement("command", tokens);
+                if (cmd) {
+                    tokens.matchToken("then");
+                    const next = parser.parseElement("commandList", tokens);
+                    if (next) cmd.next = next;
+                    return cmd;
+                }
+            });
+            this.addGrammarElement("leaf", function (parser, runtime, tokens) {
+                var result = parser.parseAnyOf(parser.LEAF_EXPRESSIONS, tokens);
+                // symbol is last so it doesn't consume any constants
+                if (result == null) {
+                    return parser.parseElement("symbol", tokens);
+                }
+                return result;
+            });
+            this.addGrammarElement("indirectExpression", function (parser, runtime, tokens, root) {
+                for (var i = 0; i < parser.INDIRECT_EXPRESSIONS.length; i++) {
+                    var indirect = parser.INDIRECT_EXPRESSIONS[i];
+                    root.endToken = tokens.lastMatch();
+                    var result = parser.parseElement(indirect, tokens, root);
+                    if (result) {
+                        return result;
+                    }
+                }
+                return root;
+            });
+            this.addGrammarElement("indirectStatement", function (parser, runtime, tokens, root) {
+                if (tokens.matchToken("unless")) {
+                    root.endToken = tokens.lastMatch();
+                    var conditional = parser.requireElement("expression", tokens);
+                    var unless = {
+                        type: "unlessStatementModifier",
+                        args: [conditional],
+                        op: function (context, conditional) {
+                            if (conditional) {
+                                return this.next;
+                            } else {
+                                return root;
+                            }
+                        },
+                        execute: function (context) {
+                            return runtime.unifiedExec(this, context);
+                        },
+                    };
+                    root.parent = unless;
+                    return unless;
+                }
+                return root;
+            });
+            this.addGrammarElement("primaryExpression", function (parser, runtime, tokens) {
+                var leaf = parser.parseElement("leaf", tokens);
+                if (leaf) {
+                    return parser.parseElement("indirectExpression", tokens, leaf);
+                }
+                parser.raiseParseError(tokens, "Unexpected value: " + tokens.currentToken().value);
+            });
+        }
+        use(plugin) {
+            plugin(this)
+            return this
+        }
+        /** @type {Object<string,ParseRule>} */
+        GRAMMAR = {};
+        /** @type {Object<string,ParseRule>} */
+        COMMANDS = {};
+        /** @type {Object<string,ParseRule>} */
+        FEATURES = {};
+        /** @type {string[]} */
+        LEAF_EXPRESSIONS = [];
+        /** @type {string[]} */
+        INDIRECT_EXPRESSIONS = [];
+        /**
+         * @param {*} parseElement
+         * @param {*} start
+         * @param {Tokens} tokens
+         */
+        initElt(parseElement, start, tokens) {
+            parseElement.startToken = start;
+            parseElement.sourceFor = Tokens.sourceFor;
+            parseElement.lineFor = Tokens.lineFor;
+            parseElement.programSource = tokens.source;
+        }
+        /**
+         * @param {string} type
+         * @param {Tokens} tokens
+         * @param {ASTNode?} root
+         * @returns {ASTNode}
+         */
+        parseElement(type, tokens, root = undefined) {
+            var elementDefinition = this.GRAMMAR[type];
+            if (elementDefinition) {
+                var start = tokens.currentToken();
+                var parseElement = elementDefinition(this, this.runtime, tokens, root);
+                if (parseElement) {
+                    this.initElt(parseElement, start, tokens);
+                    parseElement.endToken = parseElement.endToken || tokens.lastMatch();
+                    var root = parseElement.root;
+                    while (root != null) {
+                        this.initElt(root, start, tokens);
+                        root = root.root;
+                    }
+                }
+                return parseElement;
+            }
+        }
+        /**
+         * @param {string} type
+         * @param {Tokens} tokens
+         * @param {string} [message]
+         * @param {*} [root]
+         * @returns {ASTNode}
+         */
+        requireElement(type, tokens, message, root) {
+            var result = this.parseElement(type, tokens, root);
+            if (!result) Parser.raiseParseError(tokens, message || "Expected " + type);
+            // @ts-ignore
+            return result;
+        }
+        /**
+         * @param {string[]} types
+         * @param {Tokens} tokens
+         * @returns {ASTNode}
+         */
+        parseAnyOf(types, tokens) {
+            for (var i = 0; i < types.length; i++) {
+                var type = types[i];
+                var expression = this.parseElement(type, tokens);
+                if (expression) {
+                    return expression;
+                }
+            }
+        }
+        /**
+         * @param {string} name
+         * @param {ParseRule} definition
+         */
+        addGrammarElement(name, definition) {
+            this.GRAMMAR[name] = definition;
+        }
+        /**
+         * @param {string} keyword
+         * @param {ParseRule} definition
+         */
+        addCommand(keyword, definition) {
+            var commandGrammarType = keyword + "Command";
+            var commandDefinitionWrapper = function (parser, runtime, tokens) {
+                const commandElement = definition(parser, runtime, tokens);
+                if (commandElement) {
+                    commandElement.type = commandGrammarType;
+                    commandElement.execute = function (context) {
+                        context.meta.command = commandElement;
+                        return runtime.unifiedExec(this, context);
+                    };
+                    return commandElement;
+                }
+            };
+            this.GRAMMAR[commandGrammarType] = commandDefinitionWrapper;
+            this.COMMANDS[keyword] = commandDefinitionWrapper;
+        }
+        /**
+         * @param {string} keyword
+         * @param {ParseRule} definition
+         */
+        addFeature(keyword, definition) {
+            var featureGrammarType = keyword + "Feature";
+            /** @type {ParseRule} */
+            var featureDefinitionWrapper = function (parser, runtime, tokens) {
+                var featureElement = definition(parser, runtime, tokens);
+                if (featureElement) {
+                    featureElement.isFeature = true;
+                    featureElement.keyword = keyword;
+                    featureElement.type = featureGrammarType;
+                    return featureElement;
+                }
+            };
+            this.GRAMMAR[featureGrammarType] = featureDefinitionWrapper;
+            this.FEATURES[keyword] = featureDefinitionWrapper;
+        }
+        /**
+         * @param {string} name
+         * @param {ParseRule} definition
+         */
+        addLeafExpression(name, definition) {
+            this.LEAF_EXPRESSIONS.push(name);
+            this.addGrammarElement(name, definition);
+        }
+        /**
+         * @param {string} name
+         * @param {ParseRule} definition
+         */
+        addIndirectExpression(name, definition) {
+            this.INDIRECT_EXPRESSIONS.push(name);
+            this.addGrammarElement(name, definition);
+        }
+        /**
+         *
+         * @param {Tokens} tokens
+         * @returns string
+         */
+        static createParserContext(tokens) {
+            var currentToken = tokens.currentToken();
+            var source = tokens.source;
+            var lines = source.split("\n");
+            var line = currentToken && currentToken.line ? currentToken.line - 1 : lines.length - 1;
+            var contextLine = lines[line];
+            var offset = currentToken && currentToken.line ? currentToken.column : contextLine.length - 1;
+            return contextLine + "\n" + " ".repeat(offset) + "^^\n\n";
+        }
+        /**
+         * @param {Tokens} tokens
+         * @param {string} [message]
+         */
+        static raiseParseError(tokens, message) {
+            message =
+                (message || "Unexpected Token : " + tokens.currentToken().value) + "\n\n" + Parser.createParserContext(tokens);
+            var error = new Error(message);
+            error["tokens"] = tokens;
+            throw error;
+        }
+        /**
+         * @param {Tokens} tokens
+         * @param {string} [message]
+         */
+        raiseParseError(tokens, message) {
+            Parser.raiseParseError(tokens, message)
+        }
+        /**
+         * @param {Tokens} tokens
+         * @returns {ASTNode}
+         */
+        parseHyperScript(tokens) {
+            var result = this.parseElement("hyperscript", tokens);
+            if (tokens.hasMore()) this.raiseParseError(tokens);
+            if (result) return result;
+        }
+        /**
+         * @param {ASTNode | undefined} elt
+         * @param {ASTNode} parent
+         */
+        setParent(elt, parent) {
+            if (typeof elt === 'object') {
+                elt.parent = parent;
+                if (typeof parent === 'object') {
+                    parent.children = (parent.children || new Set());
+                    parent.children.add(elt)
+                }
+                this.setParent(elt.next, parent);
+            }
+        }
+        /**
+         * @param {Token} token
+         * @returns {ParseRule}
+         */
+        commandStart(token) {
+            return this.COMMANDS[token.value];
+        }
+        /**
+         * @param {Token} token
+         * @returns {ParseRule}
+         */
+        featureStart(token) {
+            return this.FEATURES[token.value];
+        }
+        /**
+         * @param {Token} token
+         * @returns {boolean}
+         */
+        commandBoundary(token) {
+            if (
+                token.value == "end" ||
+                token.value == "then" ||
+                token.value == "else" ||
+                token.value == "otherwise" ||
+                token.value == ")" ||
+                this.commandStart(token) ||
+                this.featureStart(token) ||
+                token.type == "EOF"
+            ) {
+                return true;
+            }
+            return false;
+        }
+        /**
+         * @param {Tokens} tokens
+         * @returns {(string | ASTNode)[]}
+         */
+        parseStringTemplate(tokens) {
+            /** @type {(string | ASTNode)[]} */
+            var returnArr = [""];
+            do {
+                returnArr.push(tokens.lastWhitespace());
+                if (tokens.currentToken().value === "$") {
+                    tokens.consumeToken();
+                    var startingBrace = tokens.matchOpToken("{");
+                    returnArr.push(this.requireElement("expression", tokens));
+                    if (startingBrace) {
+                        tokens.requireOpToken("}");
+                    }
+                    returnArr.push("");
+                } else if (tokens.currentToken().value === "\\") {
+                    tokens.consumeToken(); // skip next
+                    tokens.consumeToken();
+                } else {
+                    var token = tokens.consumeToken();
+                    returnArr[returnArr.length - 1] += token ? token.value : "";
+                }
+            } while (tokens.hasMore());
+            returnArr.push(tokens.lastWhitespace());
+            return returnArr;
+        }
+        /**
+         * @param {ASTNode} commandList
+         */
+        ensureTerminated(commandList) {
+            const runtime = this.runtime
+            var implicitReturn = {
+                type: "implicitReturn",
+                op: function (context) {
+                    context.meta.returned = true;
+                    if (context.meta.resolve) {
+                        context.meta.resolve();
+                    }
+                    return runtime.HALT;
+                },
+                execute: function (ctx) {
+                    // do nothing
+                },
+            };
+            var end = commandList;
+            while (end.next) {
+                end = end.next;
+            }
+            end.next = implicitReturn;
+        }
+    }
+    class Runtime {
+        /**
+         *
+         * @param {Lexer} [lexer]
+         * @param {Parser} [parser]
+         */
+        constructor(lexer, parser) {
+            this.lexer = lexer ?? new Lexer;
+            this.parser = parser ?? new Parser(this)
+                .use(hyperscriptCoreGrammar)
+                .use(hyperscriptWebGrammar);
+            this.parser.runtime = this
+        }
+        /**
+         * @param {HTMLElement} elt
+         * @param {string} selector
+         * @returns boolean
+         */
+        matchesSelector(elt, selector) {
+            // noinspection JSUnresolvedVariable
+            var matchesFunction =
+                // @ts-ignore
+                elt.matches || elt.matchesSelector || elt.msMatchesSelector || elt.mozMatchesSelector || elt.webkitMatchesSelector || elt.oMatchesSelector;
+            return matchesFunction && matchesFunction.call(elt, selector);
+        }
+        /**
+         * @param {string} eventName
+         * @param {Object} [detail]
+         * @returns {Event}
+         */
+        makeEvent(eventName, detail) {
+            var evt;
+            if (globalScope.Event && typeof globalScope.Event === "function") {
+                evt = new Event(eventName, {
+                    bubbles: true,
+                    cancelable: true,
+                });
+                evt['detail'] = detail;
+            } else {
+                evt = document.createEvent("CustomEvent");
+                evt.initCustomEvent(eventName, true, true, detail);
+            }
+            return evt;
+        }
+        /**
+         * @param {Element} elt
+         * @param {string} eventName
+         * @param {Object} [detail]
+         * @param {Element} [sender]
+         * @returns {boolean}
+         */
+        triggerEvent(elt, eventName, detail, sender) {
+            detail = detail || {};
+            detail["sender"] = sender;
+            var event = this.makeEvent(eventName, detail);
+            var eventResult = elt.dispatchEvent(event);
+            return eventResult;
+        }
+        /**
+         * isArrayLike returns `true` if the provided value is an array or
+         * a NodeList (which is close enough to being an array for our purposes).
+         *
+         * @param {any} value
+         * @returns {value is Array | NodeList}
+         */
+        isArrayLike(value) {
+            return Array.isArray(value) ||
+                (typeof NodeList !== 'undefined' && (value instanceof NodeList || value instanceof HTMLCollection));
+        }
+        /**
+         * isIterable returns `true` if the provided value supports the
+         * iterator protocol.
+         *
+         * @param {any} value
+         * @returns {value is Iterable}
+         */
+        isIterable(value) {
+            return typeof value === 'object'
+                && Symbol.iterator in value
+                && typeof value[Symbol.iterator] === 'function';
+        }
+        /**
+         * shouldAutoIterate returns `true` if the provided value
+         * should be implicitly iterated over when accessing properties,
+         * and as the target of some commands.
+         *
+         * Currently, this is when the value is an {ElementCollection}
+         * or {isArrayLike} returns true.
+         *
+         * @param {any} value
+         * @returns {value is (any[] | ElementCollection)}
+         */
+        shouldAutoIterate(value) {
+            return  value[shouldAutoIterateSymbol] ||
+                this.isArrayLike(value);
+        }
+        /**
+         * forEach executes the provided `func` on every item in the `value` array.
+         * if `value` is a single item (and not an array) then `func` is simply called
+         * once.  If `value` is null, then no further actions are taken.
+         *
+         * @template T
+         * @param {T | Iterable<T>} value
+         * @param {(item: T) => void} func
+         */
+        forEach(value, func) {
+            if (value == null) {
+                // do nothing
+            } else if (this.isIterable(value)) {
+                for (const nth of value) {
+                    func(nth);
+                }
+            } else if (this.isArrayLike(value)) {
+                for (var i = 0; i < value.length; i++) {
+                    func(value[i]);
+                }
+            } else {
+                func(value);
+            }
+        }
+        /**
+         * implicitLoop executes the provided `func` on:
+         * - every item of {value}, if {value} should be auto-iterated
+         *   (see {shouldAutoIterate})
+         * - {value} otherwise
+         *
+         * @template T
+         * @param {ElementCollection | T | T[]} value
+         * @param {(item: T) => void} func
+         */
+        implicitLoop(value, func) {
+            if (this.shouldAutoIterate(value)) {
+                for (const x of value) func(x);
+            } else {
+                func(value);
+            }
+        }
+        wrapArrays(args) {
+            var arr = [];
+            for (var i = 0; i < args.length; i++) {
+                var arg = args[i];
+                if (Array.isArray(arg)) {
+                    arr.push(Promise.all(arg));
+                } else {
+                    arr.push(arg);
+                }
+            }
+            return arr;
+        }
+        unwrapAsyncs(values) {
+            for (var i = 0; i < values.length; i++) {
+                var value = values[i];
+                if (value.asyncWrapper) {
+                    values[i] = value.value;
+                }
+                if (Array.isArray(value)) {
+                    for (var j = 0; j < value.length; j++) {
+                        var valueElement = value[j];
+                        if (valueElement.asyncWrapper) {
+                            value[j] = valueElement.value;
+                        }
+                    }
+                }
+            }
+        }
+        static HALT = {};
+        HALT = Runtime.HALT;
+        /**
+         * @param {ASTNode} command
+         * @param {Context} ctx
+         */
+        unifiedExec(command, ctx) {
+            while (true) {
+                try {
+                    var next = this.unifiedEval(command, ctx);
+                } catch (e) {
+                    if (ctx.meta.handlingFinally) {
+                        console.error(" Exception in finally block: ", e);
+                        next = Runtime.HALT;
+                    } else {
+                        this.registerHyperTrace(ctx, e);
+                        if (ctx.meta.errorHandler && !ctx.meta.handlingError) {
+                            ctx.meta.handlingError = true;
+                            ctx.locals[ctx.meta.errorSymbol] = e;
+                            command = ctx.meta.errorHandler;
+                            continue;
+                        } else  {
+                            ctx.meta.currentException = e;
+                            next = Runtime.HALT;
+                        }
+                    }
+                }
+                if (next == null) {
+                    console.error(command, " did not return a next element to execute! context: ", ctx);
+                    return;
+                } else if (next.then) {
+                    next.then(resolvedNext => {
+                        this.unifiedExec(resolvedNext, ctx);
+                    }).catch(reason => {
+                        this.unifiedExec({ // Anonymous command to simply throw the exception
+                            op: function(){
+                                throw reason;
+                            }
+                        }, ctx);
+                    });
+                    return;
+                } else if (next === Runtime.HALT) {
+                    if (ctx.meta.finallyHandler && !ctx.meta.handlingFinally) {
+                        ctx.meta.handlingFinally = true;
+                        command = ctx.meta.finallyHandler;
+                    } else {
+                        if (ctx.meta.onHalt) {
+                            ctx.meta.onHalt();
+                        }
+                        if (ctx.meta.currentException) {
+                            if (ctx.meta.reject) {
+                                ctx.meta.reject(ctx.meta.currentException);
+                                return;
+                            } else {
+                                throw ctx.meta.currentException;
+                            }
+                        } else {
+                            return;
+                        }
+                    }
+                } else {
+                    command = next; // move to the next command
+                }
+            }
+        }
+        /**
+        * @param {*} parseElement
+        * @param {Context} ctx
+        * @returns {*}
+        */
+        unifiedEval(parseElement, ctx) {
+            /** @type any[] */
+            var args = [ctx];
+            var async = false;
+            var wrappedAsyncs = false;
+            if (parseElement.args) {
+                for (var i = 0; i < parseElement.args.length; i++) {
+                    var argument = parseElement.args[i];
+                    if (argument == null) {
+                        args.push(null);
+                    } else if (Array.isArray(argument)) {
+                        var arr = [];
+                        for (var j = 0; j < argument.length; j++) {
+                            var element = argument[j];
+                            var value = element ? element.evaluate(ctx) : null; // OK
+                            if (value) {
+                                if (value.then) {
+                                    async = true;
+                                } else if (value.asyncWrapper) {
+                                    wrappedAsyncs = true;
+                                }
+                            }
+                            arr.push(value);
+                        }
+                        args.push(arr);
+                    } else if (argument.evaluate) {
+                        var value = argument.evaluate(ctx); // OK
+                        if (value) {
+                            if (value.then) {
+                                async = true;
+                            } else if (value.asyncWrapper) {
+                                wrappedAsyncs = true;
+                            }
+                        }
+                        args.push(value);
+                    } else {
+                        args.push(argument);
+                    }
+                }
+            }
+            if (async) {
+                return new Promise((resolve, reject) => {
+                    args = this.wrapArrays(args);
+                    Promise.all(args)
+                        .then(function (values) {
+                            if (wrappedAsyncs) {
+                                this.unwrapAsyncs(values);
+                            }
+                            try {
+                                var apply = parseElement.op.apply(parseElement, values);
+                                resolve(apply);
+                            } catch (e) {
+                                reject(e);
+                            }
+                        })
+                        .catch(function (reason) {
+                            reject(reason);
+                        });
+                });
+            } else {
+                if (wrappedAsyncs) {
+                    this.unwrapAsyncs(args);
+                }
+                return parseElement.op.apply(parseElement, args);
+            }
+        }
+        _scriptAttrs = null;
+        /**
+        * getAttributes returns the attribute name(s) to use when
+        * locating hyperscript scripts in a DOM element.  If no value
+        * has been configured, it defaults to config.attributes
+        * @returns string[]
+        */
+        getScriptAttributes() {
+            if (this._scriptAttrs == null) {
+                this._scriptAttrs = config.attributes.replace(/ /g, "").split(",");
+            }
+            return this._scriptAttrs;
+        }
+        /**
+        * @param {Element} elt
+        * @returns {string | null}
+        */
+        getScript(elt) {
+            for (var i = 0; i < this.getScriptAttributes().length; i++) {
+                var scriptAttribute = this.getScriptAttributes()[i];
+                if (elt.hasAttribute && elt.hasAttribute(scriptAttribute)) {
+                    return elt.getAttribute(scriptAttribute);
+                }
+            }
+            if (elt instanceof HTMLScriptElement && elt.type === "text/hyperscript") {
+                return elt.innerText;
+            }
+            return null;
+        }
+        hyperscriptFeaturesMap = new WeakMap
+        /**
+        * @param {*} elt
+        * @returns {Object}
+        */
+        getHyperscriptFeatures(elt) {
+            var hyperscriptFeatures = this.hyperscriptFeaturesMap.get(elt);
+            if (typeof hyperscriptFeatures === 'undefined') {
+                if (elt) {
+                    // in some rare cases, elt is null and this line crashes
+                    this.hyperscriptFeaturesMap.set(elt, hyperscriptFeatures = {});
+                }
+            }
+            return hyperscriptFeatures;
+        }
+        /**
+        * @param {Object} owner
+        * @param {Context} ctx
+        */
+        addFeatures(owner, ctx) {
+            if (owner) {
+                Object.assign(ctx.locals, this.getHyperscriptFeatures(owner));
+                this.addFeatures(owner.parentElement, ctx);
+            }
+        }
+        /**
+        * @param {*} owner
+        * @param {*} feature
+        * @param {*} hyperscriptTarget
+        * @param {*} event
+        * @returns {Context}
+        */
+        makeContext(owner, feature, hyperscriptTarget, event) {
+            return new Context(owner, feature, hyperscriptTarget, event, this)
+        }
+        /**
+        * @returns string
+        */
+        getScriptSelector() {
+            return this.getScriptAttributes()
+                .map(function (attribute) {
+                    return "[" + attribute + "]";
+                })
+                .join(", ");
+        }
+        /**
+        * @param {any} value
+        * @param {string} type
+        * @returns {any}
+        */
+        convertValue(value, type) {
+            var dynamicResolvers = conversions.dynamicResolvers;
+            for (var i = 0; i < dynamicResolvers.length; i++) {
+                var dynamicResolver = dynamicResolvers[i];
+                var converted = dynamicResolver(type, value);
+                if (converted !== undefined) {
+                    return converted;
+                }
+            }
+            if (value == null) {
+                return null;
+            }
+            var converter = conversions[type];
+            if (converter) {
+                return converter(value);
+            }
+            throw "Unknown conversion : " + type;
+        }
+        /**
+        * @param {string} src
+        * @returns {ASTNode}
+        */
+        parse(src) {
+            const lexer = this.lexer, parser = this.parser
+            var tokens = lexer.tokenize(src);
+            if (this.parser.commandStart(tokens.currentToken())) {
+                var commandList = parser.requireElement("commandList", tokens);
+                if (tokens.hasMore()) parser.raiseParseError(tokens);
+                parser.ensureTerminated(commandList);
+                return commandList;
+            } else if (parser.featureStart(tokens.currentToken())) {
+                var hyperscript = parser.requireElement("hyperscript", tokens);
+                if (tokens.hasMore()) parser.raiseParseError(tokens);
+                return hyperscript;
+            } else {
+                var expression = parser.requireElement("expression", tokens);
+                if (tokens.hasMore()) parser.raiseParseError(tokens);
+                return expression;
+            }
+        }
+        /**
+         *
+         * @param {ASTNode} elt
+         * @param {Context} ctx
+         * @returns {any}
+         */
+        evaluateNoPromise(elt, ctx) {
+            let result = elt.evaluate(ctx);
+            if (result.next) {
+                throw new Error(Tokens.sourceFor.call(elt) + " returned a Promise in a context that they are not allowed.");
+            }
+            return result;
+        }
+        /**
+        * @param {string} src
+        * @param {Partial<Context>} [ctx]
+        * @param {Object} [args]
+        * @returns {any}
+        */
+        evaluate(src, ctx, args) {
+            class HyperscriptModule extends EventTarget {
+                constructor(mod) {
+                    super();
+                    this.module = mod;
+                }
+                toString() {
+                    return this.module.id;
+                }
+            }
+            var body = 'document' in globalScope
+                ? globalScope.document.body
+                : new HyperscriptModule(args && args.module);
+            ctx = Object.assign(this.makeContext(body, null, body, null), ctx || {});
+            var element = this.parse(src);
+            if (element.execute) {
+                element.execute(ctx);
+                return ctx.result;
+            } else if (element.apply) {
+                element.apply(body, body, args);
+                return this.getHyperscriptFeatures(body);
+            } else {
+                return element.evaluate(ctx);
+            }
+            function makeModule() {
+                return {}
+            }
+        }
+        /**
+        * @param {HTMLElement} elt
+        */
+        processNode(elt) {
+            var selector = this.getScriptSelector();
+            if (this.matchesSelector(elt, selector)) {
+                this.initElement(elt, elt);
+            }
+            if (elt instanceof HTMLScriptElement && elt.type === "text/hyperscript") {
+                this.initElement(elt, document.body);
+            }
+            if (elt.querySelectorAll) {
+                this.forEach(elt.querySelectorAll(selector + ", [type='text/hyperscript']"), elt => {
+                    this.initElement(elt, elt instanceof HTMLScriptElement && elt.type === "text/hyperscript" ? document.body : elt);
+                });
+            }
+        }
+        /**
+        * @param {Element} elt
+        * @param {Element} [target]
+        */
+        initElement(elt, target) {
+            if (elt.closest && elt.closest(config.disableSelector)) {
+                return;
+            }
+            var internalData = this.getInternalData(elt);
+            if (!internalData.initialized) {
+                var src = this.getScript(elt);
+                if (src) {
+                    try {
+                        internalData.initialized = true;
+                        internalData.script = src;
+                        const lexer = this.lexer, parser = this.parser
+                        var tokens = lexer.tokenize(src);
+                        var hyperScript = parser.parseHyperScript(tokens);
+                        if (!hyperScript) return;
+                        hyperScript.apply(target || elt, elt);
+                        setTimeout(() => {
+                            this.triggerEvent(target || elt, "load", {
+                                hyperscript: true,
+                            });
+                        }, 1);
+                    } catch (e) {
+                        this.triggerEvent(elt, "exception", {
+                            error: e,
+                        });
+                        console.error(
+                            "hyperscript errors were found on the following element:",
+                            elt,
+                            "\n\n",
+                            e.message,
+                            e.stack
+                        );
+                    }
+                }
+            }
+        }
+        internalDataMap = new WeakMap
+        /**
+        * @param {Element} elt
+        * @returns {Object}
+        */
+        getInternalData(elt) {
+            var internalData = this.internalDataMap.get(elt);
+            if (typeof internalData === 'undefined') {
+                this.internalDataMap.set(elt, internalData = {});
+            }
+            return internalData;
+        }
+        /**
+        * @param {any} value
+        * @param {string} typeString
+        * @param {boolean} [nullOk]
+        * @returns {boolean}
+        */
+        typeCheck(value, typeString, nullOk) {
+            if (value == null && nullOk) {
+                return true;
+            }
+            var typeName = Object.prototype.toString.call(value).slice(8, -1);
+            return typeName === typeString;
+        }
+        getElementScope(context) {
+            var elt = context.meta && context.meta.owner;
+            if (elt) {
+                var internalData = this.getInternalData(elt);
+                var scopeName = "elementScope";
+                if (context.meta.feature && context.meta.feature.behavior) {
+                    scopeName = context.meta.feature.behavior + "Scope";
+                }
+                var elementScope = getOrInitObject(internalData, scopeName);
+                return elementScope;
+            } else {
+                return {}; // no element, return empty scope
+            }
+        }
+        /**
+        * @param {string} str
+        * @returns {boolean}
+        */
+        isReservedWord(str) {
+            return ["meta", "it", "result", "locals", "event", "target", "detail", "sender", "body"].includes(str)
+        }
+        /**
+        * @param {any} context
+        * @returns {boolean}
+        */
+        isHyperscriptContext(context) {
+            return context instanceof Context;
+        }
+        /**
+        * @param {string} str
+        * @param {Context} context
+        * @returns {any}
+        */
+        resolveSymbol(str, context, type) {
+            if (str === "me" || str === "my" || str === "I") {
+                return context.me;
+            }
+            if (str === "it" || str === "its" || str === "result") {
+                return context.result;
+            }
+            if (str === "you" || str === "your" || str === "yourself") {
+                return context.you;
+            } else {
+                if (type === "global") {
+                    return globalScope[str];
+                } else if (type === "element") {
+                    var elementScope = this.getElementScope(context);
+                    return elementScope[str];
+                } else if (type === "local") {
+                    return context.locals[str];
+                } else {
+                    // meta scope (used for event conditionals)
+                    if (context.meta && context.meta.context) {
+                        var fromMetaContext = context.meta.context[str];
+                        if (typeof fromMetaContext !== "undefined") {
+                            return fromMetaContext;
+                        }
+                    }
+                    if (this.isHyperscriptContext(context) && !this.isReservedWord(str)) {
+                        // local scope
+                        var fromContext = context.locals[str];
+                    } else {
+                        // direct get from normal JS object or top-level of context
+                        var fromContext = context[str];
+                    }
+                    if (typeof fromContext !== "undefined") {
+                        return fromContext;
+                    } else {
+                        // element scope
+                        var elementScope = this.getElementScope(context);
+                        fromContext = elementScope[str];
+                        if (typeof fromContext !== "undefined") {
+                            return fromContext;
+                        } else {
+                            // global scope
+                            return globalScope[str];
+                        }
+                    }
+                }
+            }
+        }
+        setSymbol(str, context, type, value) {
+            if (type === "global") {
+                globalScope[str] = value;
+            } else if (type === "element") {
+                var elementScope = this.getElementScope(context);
+                elementScope[str] = value;
+            } else if (type === "local") {
+                context.locals[str] = value;
+            } else {
+                if (this.isHyperscriptContext(context) && !this.isReservedWord(str) && typeof context.locals[str] !== "undefined") {
+                    // local scope
+                    context.locals[str] = value;
+                } else {
+                    // element scope
+                    var elementScope = this.getElementScope(context);
+                    var fromContext = elementScope[str];
+                    if (typeof fromContext !== "undefined") {
+                        elementScope[str] = value;
+                    } else {
+                        if (this.isHyperscriptContext(context) && !this.isReservedWord(str)) {
+                            // local scope
+                            context.locals[str] = value;
+                        } else {
+                            // direct set on normal JS object or top-level of context
+                            context[str] = value;
+                        }
+                    }
+                }
+            }
+        }
+        /**
+        * @param {ASTNode} command
+        * @param {Context} context
+        * @returns {undefined | ASTNode}
+        */
+        findNext(command, context) {
+            if (command) {
+                if (command.resolveNext) {
+                    return command.resolveNext(context);
+                } else if (command.next) {
+                    return command.next;
+                } else {
+                    return this.findNext(command.parent, context);
+                }
+            }
+        }
+        /**
+        * @param {Object<string,any>} root
+        * @param {string} property
+        * @param {Getter} getter
+        * @returns {any}
+        *
+        * @callback Getter
+        * @param {Object<string,any>} root
+        * @param {string} property
+        */
+        flatGet(root, property, getter) {
+            if (root != null) {
+                var val = getter(root, property);
+                if (typeof val !== "undefined") {
+                    return val;
+                }
+                if (this.shouldAutoIterate(root)) {
+                    // flat map
+                    var result = [];
+                    for (var component of root) {
+                        var componentValue = getter(component, property);
+                        result.push(componentValue);
+                    }
+                    return result;
+                }
+            }
+        }
+        resolveProperty(root, property) {
+            return this.flatGet(root, property, (root, property) => root[property] )
+        }
+        resolveAttribute(root, property) {
+            return this.flatGet(root, property, (root, property) => root.getAttribute && root.getAttribute(property) )
+        }
+        /**
+         *
+         * @param {Object<string, any>} root
+         * @param {string} property
+         * @returns {string}
+         */
+        resolveStyle(root, property) {
+            return this.flatGet(root, property, (root, property) => root.style && root.style[property] )
+        }
+        /**
+         *
+         * @param {Object<string, any>} root
+         * @param {string} property
+         * @returns {string}
+         */
+        resolveComputedStyle(root, property) {
+            return this.flatGet(root, property, (root, property) => getComputedStyle(
+                /** @type {Element} */ (root)).getPropertyValue(property) )
+        }
+        /**
+        * @param {Element} elt
+        * @param {string[]} nameSpace
+        * @param {string} name
+        * @param {any} value
+        */
+        assignToNamespace(elt, nameSpace, name, value) {
+            let root
+            if (typeof document !== "undefined" && elt === document.body) {
+                root = globalScope;
+            } else {
+                root = this.getHyperscriptFeatures(elt);
+            }
+            while (nameSpace.length > 0) {
+                var propertyName = nameSpace.shift();
+                var newRoot = root[propertyName];
+                if (newRoot == null) {
+                    newRoot = {};
+                    root[propertyName] = newRoot;
+                }
+                root = newRoot;
+            }
+            root[name] = value;
+        }
+        getHyperTrace(ctx, thrown) {
+            var trace = [];
+            var root = ctx;
+            while (root.meta.caller) {
+                root = root.meta.caller;
+            }
+            if (root.meta.traceMap) {
+                return root.meta.traceMap.get(thrown, trace);
+            }
+        }
+        registerHyperTrace(ctx, thrown) {
+            var trace = [];
+            var root = null;
+            while (ctx != null) {
+                trace.push(ctx);
+                root = ctx;
+                ctx = ctx.meta.caller;
+            }
+            if (root.meta.traceMap == null) {
+                root.meta.traceMap = new Map(); // TODO - WeakMap?
+            }
+            if (!root.meta.traceMap.get(thrown)) {
+                var traceEntry = {
+                    trace: trace,
+                    print: function (logger) {
+                        logger = logger || console.error;
+                        logger("hypertrace /// ");
+                        var maxLen = 0;
+                        for (var i = 0; i < trace.length; i++) {
+                            maxLen = Math.max(maxLen, trace[i].meta.feature.displayName.length);
+                        }
+                        for (var i = 0; i < trace.length; i++) {
+                            var traceElt = trace[i];
+                            logger(
+                                "  ->",
+                                traceElt.meta.feature.displayName.padEnd(maxLen + 2),
+                                "-",
+                                traceElt.meta.owner
+                            );
+                        }
+                    },
+                };
+                root.meta.traceMap.set(thrown, traceEntry);
+            }
+        }
+        /**
+        * @param {string} str
+        * @returns {string}
+        */
+        escapeSelector(str) {
+            return str.replace(/:/g, function (str) {
+                return "\\" + str;
+            });
+        }
+        /**
+        * @param {any} value
+        * @param {*} elt
+        */
+        nullCheck(value, elt) {
+            if (value == null) {
+                throw new Error("'" + elt.sourceFor() + "' is null");
+            }
+        }
+        /**
+        * @param {any} value
+        * @returns {boolean}
+        */
+        isEmpty(value) {
+            return value == undefined || value.length === 0;
+        }
+        /**
+        * @param {any} value
+        * @returns {boolean}
+        */
+        doesExist(value) {
+            if(value == null){
+                return false;
+            }
+            if (this.shouldAutoIterate(value)) {
+                for (const elt of value) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        /**
+        * @param {Node} node
+        * @returns {Document|ShadowRoot}
+        */
+        getRootNode(node) {
+            if (node && node instanceof Node) {
+                var rv = node.getRootNode();
+                if (rv instanceof Document || rv instanceof ShadowRoot) return rv;
+            }
+            return document;
+        }
+        /**
+         *
+         * @param {Element} elt
+         * @param {ASTNode} onFeature
+         * @returns {EventQueue}
+         *
+         * @typedef {{queue:Array, executing:boolean}} EventQueue
+         */
+        getEventQueueFor(elt, onFeature) {
+            let internalData = this.getInternalData(elt);
+            var eventQueuesForElt = internalData.eventQueues;
+            if (eventQueuesForElt == null) {
+                eventQueuesForElt = new Map();
+                internalData.eventQueues = eventQueuesForElt;
+            }
+            var eventQueueForFeature = eventQueuesForElt.get(onFeature);
+            if (eventQueueForFeature == null) {
+                eventQueueForFeature = {queue:[], executing:false};
+                eventQueuesForElt.set(onFeature, eventQueueForFeature);
+            }
+            return eventQueueForFeature;
+        }
+        /** @type string | null */
+        // @ts-ignore
+        hyperscriptUrl = "document" in globalScope ? document.currentScript.src : null;
+    }
+    class Context {
+        /**
+        * @param {*} owner
+        * @param {*} feature
+        * @param {*} hyperscriptTarget
+        * @param {*} event
+        */
+        constructor(owner, feature, hyperscriptTarget, event, runtime) {
+            this.meta = {
+                parser: runtime.parser,
+                lexer: runtime.lexer,
+                runtime,
+                owner: owner,
+                feature: feature,
+                iterators: {},
+                ctx: this
+            }
+            this.locals = {};
+            this.me = hyperscriptTarget,
+            this.you = undefined
+            this.result = undefined
+            this.event = event;
+            this.target = event ? event.target : null;
+            this.detail = event ? event.detail : null;
+            this.sender = event ? event.detail ? event.detail.sender : null : null;
+            this.body = "document" in globalScope ? document.body : null;
+            runtime.addFeatures(owner, this);
+        }
+    }
+    class ElementCollection {
+        constructor(css, relativeToElement, escape) {
+            this._css = css;
+            this.relativeToElement = relativeToElement;
+            this.escape = escape;
+            this[shouldAutoIterateSymbol] = true;
+        }
+        get css() {
+            if (this.escape) {
+                return Runtime.prototype.escapeSelector(this._css);
+            } else {
+                return this._css;
+            }
+        }
+        get className() {
+            return this._css.substr(1);
+        }
+        get id() {
+            return this.className();
+        }
+        contains(elt) {
+            for (let element of this) {
+                if (element.contains(elt)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+        get length() {
+            return this.selectMatches().length;
+        }
+        [Symbol.iterator]() {
+            let query = this.selectMatches();
+            return query [Symbol.iterator]();
+        }
+        selectMatches() {
+            let query = Runtime.prototype.getRootNode(this.relativeToElement).querySelectorAll(this.css);
+            return query;
+        }
+    }
+    const shouldAutoIterateSymbol = Symbol()
+    function getOrInitObject(root, prop) {
+        var value = root[prop];
+        if (value) {
+            return value;
+        } else {
+            var newObj = {};
+            root[prop] = newObj;
+            return newObj;
+        }
+    }
+    /**
+     * parseJSON parses a JSON string into a corresponding value.  If the
+     * value passed in is not valid JSON, then it logs an error and returns `null`.
+     *
+     * @param {string} jString
+     * @returns any
+     */
+    function parseJSON(jString) {
+        try {
+            return JSON.parse(jString);
+        } catch (error) {
+            logError(error);
+            return null;
+        }
+    }
+    /**
+     * logError writes an error message to the Javascript console.  It can take any
+     * value, but msg should commonly be a simple string.
+     * @param {*} msg
+     */
+    function logError(msg) {
+        if (console.error) {
+            console.error(msg);
+        } else if (console.log) {
+            console.log("ERROR: ", msg);
+        }
+    }
+    // TODO: JSDoc description of what's happening here
+    function varargConstructor(Cls, args) {
+        return new (Cls.bind.apply(Cls, [Cls].concat(args)))();
+    }
+    // Grammar
+    /**
+     * @param {Parser} parser
+     */
+    function hyperscriptCoreGrammar(parser) {
+        parser.addLeafExpression("parenthesized", function (parser, _runtime, tokens) {
+            if (tokens.matchOpToken("(")) {
+                var follows = tokens.clearFollows();
+                try {
+                    var expr = parser.requireElement("expression", tokens);
+                } finally {
+                    tokens.restoreFollows(follows);
+                }
+                tokens.requireOpToken(")");
+                return expr;
+            }
+        });
+        parser.addLeafExpression("string", function (parser, runtime, tokens) {
+            var stringToken = tokens.matchTokenType("STRING");
+            if (!stringToken) return;
+            var rawValue = stringToken.value;
+            /** @type {any[]} */
+            var args;
+            if (stringToken.template) {
+                var innerTokens = Lexer.tokenize(rawValue, true);
+                args = parser.parseStringTemplate(innerTokens);
+            } else {
+                args = [];
+            }
+            return {
+                type: "string",
+                token: stringToken,
+                args: args,
+                op: function (context) {
+                    var returnStr = "";
+                    for (var i = 1; i < arguments.length; i++) {
+                        var val = arguments[i];
+                        if (val !== undefined) {
+                            returnStr += val;
+                        }
+                    }
+                    return returnStr;
+                },
+                evaluate: function (context) {
+                    if (args.length === 0) {
+                        return rawValue;
+                    } else {
+                        return runtime.unifiedEval(this, context);
+                    }
+                },
+            };
+        });
+        parser.addGrammarElement("nakedString", function (parser, runtime, tokens) {
+            if (tokens.hasMore()) {
+                var tokenArr = tokens.consumeUntilWhitespace();
+                tokens.matchTokenType("WHITESPACE");
+                return {
+                    type: "nakedString",
+                    tokens: tokenArr,
+                    evaluate: function (context) {
+                        return tokenArr
+                            .map(function (t) {
+                                return t.value;
+                            })
+                            .join("");
+                    },
+                };
+            }
+        });
+        parser.addLeafExpression("number", function (parser, runtime, tokens) {
+            var number = tokens.matchTokenType("NUMBER");
+            if (!number) return;
+            var numberToken = number;
+            var value = parseFloat(number.value);
+            return {
+                type: "number",
+                value: value,
+                numberToken: numberToken,
+                evaluate: function () {
+                    return value;
+                },
+            };
+        });
+        parser.addLeafExpression("idRef", function (parser, runtime, tokens) {
+            var elementId = tokens.matchTokenType("ID_REF");
+            if (!elementId) return;
+            // TODO - unify these two expression types
+            if (elementId.template) {
+                var templateValue = elementId.value.substr(2, elementId.value.length - 2);
+                var innerTokens = Lexer.tokenize(templateValue);
+                var innerExpression = parser.requireElement("expression", innerTokens);
+                return {
+                    type: "idRefTemplate",
+                    args: [innerExpression],
+                    op: function (context, arg) {
+                        return runtime.getRootNode(context.me).getElementById(arg);
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            } else {
+                const value = elementId.value.substr(1);
+                return {
+                    type: "idRef",
+                    css: elementId.value,
+                    value: value,
+                    evaluate: function (context) {
+                        return (
+                            runtime.getRootNode(context.me).getElementById(value)
+                        );
+                    },
+                };
+            }
+        });
+        parser.addLeafExpression("classRef", function (parser, runtime, tokens) {
+            var classRef = tokens.matchTokenType("CLASS_REF");
+            if (!classRef) return;
+            // TODO - unify these two expression types
+            if (classRef.template) {
+                var templateValue = classRef.value.substr(2, classRef.value.length - 2);
+                var innerTokens = Lexer.tokenize(templateValue);
+                var innerExpression = parser.requireElement("expression", innerTokens);
+                return {
+                    type: "classRefTemplate",
+                    args: [innerExpression],
+                    op: function (context, arg) {
+                        return new ElementCollection("." + arg, context.me, true)
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            } else {
+                const css = classRef.value;
+                return {
+                    type: "classRef",
+                    css: css,
+                    evaluate: function (context) {
+                        return new ElementCollection(css, context.me, true)
+                    },
+                };
+            }
+        });
+        class TemplatedQueryElementCollection extends ElementCollection {
+            constructor(css, relativeToElement, templateParts) {
+                super(css, relativeToElement);
+                this.templateParts = templateParts;
+                this.elements = templateParts.filter(elt => elt instanceof Element);
+            }
+            get css() {
+                let rv = "", i = 0
+                for (const val of this.templateParts) {
+                    if (val instanceof Element) {
+                        rv += "[data-hs-query-id='" + i++ + "']";
+                    } else rv += val;
+                }
+                return rv;
+            }
+            [Symbol.iterator]() {
+                this.elements.forEach((el, i) => el.dataset.hsQueryId = i);
+                const rv = super[Symbol.iterator]();
+                this.elements.forEach(el => el.removeAttribute('data-hs-query-id'));
+                return rv;
+            }
+        }
+        parser.addLeafExpression("queryRef", function (parser, runtime, tokens) {
+            var queryStart = tokens.matchOpToken("<");
+            if (!queryStart) return;
+            var queryTokens = tokens.consumeUntil("/");
+            tokens.requireOpToken("/");
+            tokens.requireOpToken(">");
+            var queryValue = queryTokens
+                .map(function (t) {
+                    if (t.type === "STRING") {
+                        return '"' + t.value + '"';
+                    } else {
+                        return t.value;
+                    }
+                })
+                .join("");
+            if (queryValue.indexOf("$") >= 0) {
+                var template = true;
+                var innerTokens = Lexer.tokenize(queryValue, true);
+                var args = parser.parseStringTemplate(innerTokens);
+            }
+            return {
+                type: "queryRef",
+                css: queryValue,
+                args: args,
+                op: function (context, ...args) {
+                    if (template) {
+                        return new TemplatedQueryElementCollection(queryValue, context.me, args)
+                    } else {
+                        return new ElementCollection(queryValue, context.me)
+                    }
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+        });
+        parser.addLeafExpression("attributeRef", function (parser, runtime, tokens) {
+            var attributeRef = tokens.matchTokenType("ATTRIBUTE_REF");
+            if (!attributeRef) return;
+            var outerVal = attributeRef.value;
+            if (outerVal.indexOf("[") === 0) {
+                var innerValue = outerVal.substring(2, outerVal.length - 1);
+            } else {
+                var innerValue = outerVal.substring(1);
+            }
+            var css = "[" + innerValue + "]";
+            var split = innerValue.split("=");
+            var name = split[0];
+            var value = split[1];
+            if (value) {
+                // strip quotes
+                if (value.indexOf('"') === 0) {
+                    value = value.substring(1, value.length - 1);
+                }
+            }
+            return {
+                type: "attributeRef",
+                name: name,
+                css: css,
+                value: value,
+                op: function (context) {
+                    var target = context.you || context.me;
+                    if (target) {
+                        return target.getAttribute(name);
+                    }
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+        });
+        parser.addLeafExpression("styleRef", function (parser, runtime, tokens) {
+            var styleRef = tokens.matchTokenType("STYLE_REF");
+            if (!styleRef) return;
+            var styleProp = styleRef.value.substr(1);
+            if (styleProp.startsWith("computed-")) {
+                styleProp = styleProp.substr("computed-".length);
+                return {
+                    type: "computedStyleRef",
+                    name: styleProp,
+                    op: function (context) {
+                        var target = context.you || context.me;
+                        if (target) {
+                            return runtime.resolveComputedStyle(target, styleProp);
+                        }
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            } else {
+                return {
+                    type: "styleRef",
+                    name: styleProp,
+                    op: function (context) {
+                        var target = context.you || context.me;
+                        if (target) {
+                            return runtime.resolveStyle(target, styleProp);
+                        }
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            }
+        });
+        parser.addGrammarElement("objectKey", function (parser, runtime, tokens) {
+            var token;
+            if ((token = tokens.matchTokenType("STRING"))) {
+                return {
+                    type: "objectKey",
+                    key: token.value,
+                    evaluate: function () {
+                        return token.value;
+                    },
+                };
+            } else if (tokens.matchOpToken("[")) {
+                var expr = parser.parseElement("expression", tokens);
+                tokens.requireOpToken("]");
+                return {
+                    type: "objectKey",
+                    expr: expr,
+                    args: [expr],
+                    op: function (ctx, expr) {
+                        return expr;
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            } else {
+                var key = "";
+                do {
+                    token = tokens.matchTokenType("IDENTIFIER") || tokens.matchOpToken("-");
+                    if (token) key += token.value;
+                } while (token);
+                return {
+                    type: "objectKey",
+                    key: key,
+                    evaluate: function () {
+                        return key;
+                    },
+                };
+            }
+        });
+        parser.addLeafExpression("objectLiteral", function (parser, runtime, tokens) {
+            if (!tokens.matchOpToken("{")) return;
+            var keyExpressions = [];
+            var valueExpressions = [];
+            if (!tokens.matchOpToken("}")) {
+                do {
+                    var name = parser.requireElement("objectKey", tokens);
+                    tokens.requireOpToken(":");
+                    var value = parser.requireElement("expression", tokens);
+                    valueExpressions.push(value);
+                    keyExpressions.push(name);
+                } while (tokens.matchOpToken(","));
+                tokens.requireOpToken("}");
+            }
+            return {
+                type: "objectLiteral",
+                args: [keyExpressions, valueExpressions],
+                op: function (context, keys, values) {
+                    var returnVal = {};
+                    for (var i = 0; i < keys.length; i++) {
+                        returnVal[keys[i]] = values[i];
+                    }
+                    return returnVal;
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+        });
+        parser.addGrammarElement("nakedNamedArgumentList", function (parser, runtime, tokens) {
+            var fields = [];
+            var valueExpressions = [];
+            if (tokens.currentToken().type === "IDENTIFIER") {
+                do {
+                    var name = tokens.requireTokenType("IDENTIFIER");
+                    tokens.requireOpToken(":");
+                    var value = parser.requireElement("expression", tokens);
+                    valueExpressions.push(value);
+                    fields.push({ name: name, value: value });
+                } while (tokens.matchOpToken(","));
+            }
+            return {
+                type: "namedArgumentList",
+                fields: fields,
+                args: [valueExpressions],
+                op: function (context, values) {
+                    var returnVal = { _namedArgList_: true };
+                    for (var i = 0; i < values.length; i++) {
+                        var field = fields[i];
+                        returnVal[field.name.value] = values[i];
+                    }
+                    return returnVal;
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+        });
+        parser.addGrammarElement("namedArgumentList", function (parser, runtime, tokens) {
+            if (!tokens.matchOpToken("(")) return;
+            var elt = parser.requireElement("nakedNamedArgumentList", tokens);
+            tokens.requireOpToken(")");
+            return elt;
+        });
+        parser.addGrammarElement("symbol", function (parser, runtime, tokens) {
+            /** @scope {SymbolScope} */
+            var scope = "default";
+            if (tokens.matchToken("global")) {
+                scope = "global";
+            } else if (tokens.matchToken("element") || tokens.matchToken("module")) {
+                scope = "element";
+                // optional possessive
+                if (tokens.matchOpToken("'")) {
+                    tokens.requireToken("s");
+                }
+            } else if (tokens.matchToken("local")) {
+                scope = "local";
+            }
+            // TODO better look ahead here
+            let eltPrefix = tokens.matchOpToken(":");
+            let identifier = tokens.matchTokenType("IDENTIFIER");
+            if (identifier) {
+                var name = identifier.value;
+                if (eltPrefix) {
+                    name = ":" + name;
+                }
+                if (scope === "default") {
+                    if (name.indexOf("$") === 0) {
+                        scope = "global";
+                    }
+                    if (name.indexOf(":") === 0) {
+                        scope = "element";
+                    }
+                }
+                return {
+                    type: "symbol",
+                    token: identifier,
+                    scope: scope,
+                    name: name,
+                    evaluate: function (context) {
+                        return runtime.resolveSymbol(name, context, scope);
+                    },
+                };
+            }
+        });
+        parser.addGrammarElement("implicitMeTarget", function (parser, runtime, tokens) {
+            return {
+                type: "implicitMeTarget",
+                evaluate: function (context) {
+                    return context.you || context.me;
+                },
+            };
+        });
+        parser.addLeafExpression("boolean", function (parser, runtime, tokens) {
+            var booleanLiteral = tokens.matchToken("true") || tokens.matchToken("false");
+            if (!booleanLiteral) return;
+            const value = booleanLiteral.value === "true";
+            return {
+                type: "boolean",
+                evaluate: function (context) {
+                    return value;
+                },
+            };
+        });
+        parser.addLeafExpression("null", function (parser, runtime, tokens) {
+            if (tokens.matchToken("null")) {
+                return {
+                    type: "null",
+                    evaluate: function (context) {
+                        return null;
+                    },
+                };
+            }
+        });
+        parser.addLeafExpression("arrayLiteral", function (parser, runtime, tokens) {
+            if (!tokens.matchOpToken("[")) return;
+            var values = [];
+            if (!tokens.matchOpToken("]")) {
+                do {
+                    var expr = parser.requireElement("expression", tokens);
+                    values.push(expr);
+                } while (tokens.matchOpToken(","));
+                tokens.requireOpToken("]");
+            }
+            return {
+                type: "arrayLiteral",
+                values: values,
+                args: [values],
+                op: function (context, values) {
+                    return values;
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+        });
+        parser.addLeafExpression("blockLiteral", function (parser, runtime, tokens) {
+            if (!tokens.matchOpToken("\\")) return;
+            var args = [];
+            var arg1 = tokens.matchTokenType("IDENTIFIER");
+            if (arg1) {
+                args.push(arg1);
+                while (tokens.matchOpToken(",")) {
+                    args.push(tokens.requireTokenType("IDENTIFIER"));
+                }
+            }
+            // TODO compound op token
+            tokens.requireOpToken("-");
+            tokens.requireOpToken(">");
+            var expr = parser.requireElement("expression", tokens);
+            return {
+                type: "blockLiteral",
+                args: args,
+                expr: expr,
+                evaluate: function (ctx) {
+                    var returnFunc = function () {
+                        //TODO - push scope
+                        for (var i = 0; i < args.length; i++) {
+                            ctx.locals[args[i].value] = arguments[i];
+                        }
+                        return expr.evaluate(ctx); //OK
+                    };
+                    return returnFunc;
+                },
+            };
+        });
+        parser.addIndirectExpression("propertyAccess", function (parser, runtime, tokens, root) {
+            if (!tokens.matchOpToken(".")) return;
+            var prop = tokens.requireTokenType("IDENTIFIER");
+            var propertyAccess = {
+                type: "propertyAccess",
+                root: root,
+                prop: prop,
+                args: [root],
+                op: function (_context, rootVal) {
+                    var value = runtime.resolveProperty(rootVal, prop.value);
+                    return value;
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+            return parser.parseElement("indirectExpression", tokens, propertyAccess);
+        });
+        parser.addIndirectExpression("of", function (parser, runtime, tokens, root) {
+            if (!tokens.matchToken("of")) return;
+            var newRoot = parser.requireElement("unaryExpression", tokens);
+            // find the urroot
+            var childOfUrRoot = null;
+            var urRoot = root;
+            while (urRoot.root) {
+                childOfUrRoot = urRoot;
+                urRoot = urRoot.root;
+            }
+            if (urRoot.type !== "symbol" && urRoot.type !== "attributeRef" && urRoot.type !== "styleRef" && urRoot.type !== "computedStyleRef") {
+                parser.raiseParseError(tokens, "Cannot take a property of a non-symbol: " + urRoot.type);
+            }
+            var attribute = urRoot.type === "attributeRef";
+            var style = urRoot.type === "styleRef" || urRoot.type === "computedStyleRef";
+            if (attribute || style) {
+                var attributeElt = urRoot
+            }
+            var prop = urRoot.name;
+            var propertyAccess = {
+                type: "ofExpression",
+                prop: urRoot.token,
+                root: newRoot,
+                attribute: attributeElt,
+                expression: root,
+                args: [newRoot],
+                op: function (context, rootVal) {
+                    if (attribute) {
+                        return runtime.resolveAttribute(rootVal, prop);
+                    } else if (style) {
+                        if (urRoot.type === "computedStyleRef") {
+                            return runtime.resolveComputedStyle(rootVal, prop);
+                        } else {
+                            return runtime.resolveStyle(rootVal, prop);
+                        }
+                    } else {
+                        return runtime.resolveProperty(rootVal, prop);
+                    }
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+            if (urRoot.type === "attributeRef") {
+                propertyAccess.attribute = urRoot;
+            }
+            if (childOfUrRoot) {
+                childOfUrRoot.root = propertyAccess;
+                childOfUrRoot.args = [propertyAccess];
+            } else {
+                root = propertyAccess;
+            }
+            return parser.parseElement("indirectExpression", tokens, root);
+        });
+        parser.addIndirectExpression("possessive", function (parser, runtime, tokens, root) {
+            if (parser.possessivesDisabled) {
+                return;
+            }
+            var apostrophe = tokens.matchOpToken("'");
+            if (
+                apostrophe ||
+                (root.type === "symbol" &&
+                    (root.name === "my" || root.name === "its" || root.name === "your") &&
+                    (tokens.currentToken().type === "IDENTIFIER" || tokens.currentToken().type === "ATTRIBUTE_REF" || tokens.currentToken().type === "STYLE_REF"))
+            ) {
+                if (apostrophe) {
+                    tokens.requireToken("s");
+                }
+                var attribute = parser.parseElement("attributeRef", tokens);
+                if (attribute == null) {
+                    var style = parser.parseElement("styleRef", tokens);
+                    if (style == null) {
+                        var prop = tokens.requireTokenType("IDENTIFIER");
+                    }
+                }
+                var propertyAccess = {
+                    type: "possessive",
+                    root: root,
+                    attribute: attribute || style,
+                    prop: prop,
+                    args: [root],
+                    op: function (context, rootVal) {
+                        if (attribute) {
+                            // @ts-ignore
+                            var value = runtime.resolveAttribute(rootVal, attribute.name);
+                        } else if (style) {
+                            var value
+                            if (style.type === 'computedStyleRef') {
+                                value = runtime.resolveComputedStyle(rootVal, style['name']);
+                            } else {
+                                value = runtime.resolveStyle(rootVal, style['name']);
+                            }
+                        } else {
+                            var value = runtime.resolveProperty(rootVal, prop.value);
+                        }
+                        return value;
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+                return parser.parseElement("indirectExpression", tokens, propertyAccess);
+            }
+        });
+        parser.addIndirectExpression("inExpression", function (parser, runtime, tokens, root) {
+            if (!tokens.matchToken("in")) return;
+            var target = parser.requireElement("unaryExpression", tokens);
+            var propertyAccess = {
+                type: "inExpression",
+                root: root,
+                args: [root, target],
+                op: function (context, rootVal, target) {
+                    var returnArr = [];
+                    if (rootVal.css) {
+                        runtime.implicitLoop(target, function (targetElt) {
+                            var results = targetElt.querySelectorAll(rootVal.css);
+                            for (var i = 0; i < results.length; i++) {
+                                returnArr.push(results[i]);
+                            }
+                        });
+                    } else if (rootVal instanceof Element) {
+                        var within = false;
+                        runtime.implicitLoop(target, function (targetElt) {
+                            if (targetElt.contains(rootVal)) {
+                                within = true;
+                            }
+                        });
+                        if(within) {
+                            return rootVal;
+                        }
+                    } else {
+                        runtime.implicitLoop(rootVal, function (rootElt) {
+                            runtime.implicitLoop(target, function (targetElt) {
+                                if (rootElt === targetElt) {
+                                    returnArr.push(rootElt);
+                                }
+                            });
+                        });
+                    }
+                    return returnArr;
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+            return parser.parseElement("indirectExpression", tokens, propertyAccess);
+        });
+        parser.addIndirectExpression("asExpression", function (parser, runtime, tokens, root) {
+            if (!tokens.matchToken("as")) return;
+            tokens.matchToken("a") || tokens.matchToken("an");
+            var conversion = parser.requireElement("dotOrColonPath", tokens).evaluate(); // OK No promise
+            var propertyAccess = {
+                type: "asExpression",
+                root: root,
+                args: [root],
+                op: function (context, rootVal) {
+                    return runtime.convertValue(rootVal, conversion);
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+            return parser.parseElement("indirectExpression", tokens, propertyAccess);
+        });
+        parser.addIndirectExpression("functionCall", function (parser, runtime, tokens, root) {
+            if (!tokens.matchOpToken("(")) return;
+            var args = [];
+            if (!tokens.matchOpToken(")")) {
+                do {
+                    args.push(parser.requireElement("expression", tokens));
+                } while (tokens.matchOpToken(","));
+                tokens.requireOpToken(")");
+            }
+            if (root.root) {
+                var functionCall = {
+                    type: "functionCall",
+                    root: root,
+                    argExressions: args,
+                    args: [root.root, args],
+                    op: function (context, rootRoot, args) {
+                        runtime.nullCheck(rootRoot, root.root);
+                        var func = rootRoot[root.prop.value];
+                        runtime.nullCheck(func, root);
+                        if (func.hyperfunc) {
+                            args.push(context);
+                        }
+                        return func.apply(rootRoot, args);
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            } else {
+                var functionCall = {
+                    type: "functionCall",
+                    root: root,
+                    argExressions: args,
+                    args: [root, args],
+                    op: function (context, func, argVals) {
+                        runtime.nullCheck(func, root);
+                        if (func.hyperfunc) {
+                            argVals.push(context);
+                        }
+                        var apply = func.apply(null, argVals);
+                        return apply;
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            }
+            return parser.parseElement("indirectExpression", tokens, functionCall);
+        });
+        parser.addIndirectExpression("attributeRefAccess", function (parser, runtime, tokens, root) {
+            var attribute = parser.parseElement("attributeRef", tokens);
+            if (!attribute) return;
+            var attributeAccess = {
+                type: "attributeRefAccess",
+                root: root,
+                attribute: attribute,
+                args: [root],
+                op: function (_ctx, rootVal) {
+                    // @ts-ignore
+                    var value = runtime.resolveAttribute(rootVal, attribute.name);
+                    return value;
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+            return attributeAccess;
+        });
+        parser.addIndirectExpression("arrayIndex", function (parser, runtime, tokens, root) {
+            if (!tokens.matchOpToken("[")) return;
+            var andBefore = false;
+            var andAfter = false;
+            var firstIndex = null;
+            var secondIndex = null;
+            if (tokens.matchOpToken("..")) {
+                andBefore = true;
+                firstIndex = parser.requireElement("expression", tokens);
+            } else {
+                firstIndex = parser.requireElement("expression", tokens);
+                if (tokens.matchOpToken("..")) {
+                    andAfter = true;
+                    var current = tokens.currentToken();
+                    if (current.type !== "R_BRACKET") {
+                        secondIndex = parser.parseElement("expression", tokens);
+                    }
+                }
+            }
+            tokens.requireOpToken("]");
+            var arrayIndex = {
+                type: "arrayIndex",
+                root: root,
+                prop: firstIndex,
+                firstIndex: firstIndex,
+                secondIndex: secondIndex,
+                args: [root, firstIndex, secondIndex],
+                op: function (_ctx, root, firstIndex, secondIndex) {
+                    if (root == null) {
+                        return null;
+                    }
+                    if (andBefore) {
+                        if (firstIndex < 0) {
+                            firstIndex = root.length + firstIndex;
+                        }
+                        return root.slice(0, firstIndex + 1); // returns all items from beginning to firstIndex (inclusive)
+                    } else if (andAfter) {
+                        if (secondIndex != null) {
+                            if (secondIndex < 0) {
+                                secondIndex = root.length + secondIndex;
+                            }
+                            return root.slice(firstIndex, secondIndex + 1); // returns all items from firstIndex to secondIndex (inclusive)
+                        } else {
+                            return root.slice(firstIndex); // returns from firstIndex to end of array
+                        }
+                    } else {
+                        return root[firstIndex];
+                    }
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+            return parser.parseElement("indirectExpression", tokens, arrayIndex);
+        });
+        // taken from https://drafts.csswg.org/css-values-4/#relative-length
+        //        and https://drafts.csswg.org/css-values-4/#absolute-length
+        //        (NB: we do not support `in` dues to conflicts w/ the hyperscript grammar)
+        var STRING_POSTFIXES = [
+            'em', 'ex', 'cap', 'ch', 'ic', 'rem', 'lh', 'rlh', 'vw', 'vh', 'vi', 'vb', 'vmin', 'vmax',
+            'cm', 'mm', 'Q', 'pc', 'pt', 'px'
+        ];
+        parser.addGrammarElement("postfixExpression", function (parser, runtime, tokens) {
+            var root = parser.parseElement("primaryExpression", tokens);
+            let stringPosfix = tokens.matchAnyToken.apply(tokens, STRING_POSTFIXES) || tokens.matchOpToken("%");
+            if (stringPosfix) {
+                return {
+                    type: "stringPostfix",
+                    postfix: stringPosfix.value,
+                    args: [root],
+                    op: function (context, val) {
+                        return "" + val + stringPosfix.value;
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            }
+            var timeFactor = null;
+            if (tokens.matchToken("s") || tokens.matchToken("seconds")) {
+                timeFactor = 1000;
+            } else if (tokens.matchToken("ms") || tokens.matchToken("milliseconds")) {
+                timeFactor = 1;
+            }
+            if (timeFactor) {
+                return {
+                    type: "timeExpression",
+                    time: root,
+                    factor: timeFactor,
+                    args: [root],
+                    op: function (_context, val) {
+                        return val * timeFactor;
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            }
+            if (tokens.matchOpToken(":")) {
+                var typeName = tokens.requireTokenType("IDENTIFIER");
+                var nullOk = !tokens.matchOpToken("!");
+                return {
+                    type: "typeCheck",
+                    typeName: typeName,
+                    nullOk: nullOk,
+                    args: [root],
+                    op: function (context, val) {
+                        var passed = runtime.typeCheck(val, typeName.value, nullOk);
+                        if (passed) {
+                            return val;
+                        } else {
+                            throw new Error("Typecheck failed!  Expected: " + typeName.value);
+                        }
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            } else {
+                return root;
+            }
+        });
+        parser.addGrammarElement("logicalNot", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("not")) return;
+            var root = parser.requireElement("unaryExpression", tokens);
+            return {
+                type: "logicalNot",
+                root: root,
+                args: [root],
+                op: function (context, val) {
+                    return !val;
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+        });
+        parser.addGrammarElement("noExpression", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("no")) return;
+            var root = parser.requireElement("unaryExpression", tokens);
+            return {
+                type: "noExpression",
+                root: root,
+                args: [root],
+                op: function (_context, val) {
+                    return runtime.isEmpty(val);
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+        });
+        parser.addLeafExpression("some", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("some")) return;
+            var root = parser.requireElement("expression", tokens);
+            return {
+                type: "noExpression",
+                root: root,
+                args: [root],
+                op: function (_context, val) {
+                    return !runtime.isEmpty(val);
+                },
+                evaluate(context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+        });
+        parser.addGrammarElement("negativeNumber", function (parser, runtime, tokens) {
+            if (!tokens.matchOpToken("-")) return;
+            var root = parser.requireElement("unaryExpression", tokens);
+            return {
+                type: "negativeNumber",
+                root: root,
+                args: [root],
+                op: function (context, value) {
+                    return -1 * value;
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+        });
+        parser.addGrammarElement("unaryExpression", function (parser, runtime, tokens) {
+            tokens.matchToken("the"); // optional "the"
+            return parser.parseAnyOf(
+                ["beepExpression", "logicalNot", "relativePositionalExpression", "positionalExpression", "noExpression", "negativeNumber", "postfixExpression"],
+                tokens
+            );
+        });
+        parser.addGrammarElement("beepExpression", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("beep!")) return;
+            var expression = parser.parseElement("unaryExpression", tokens);
+            if (expression) {
+                expression['booped'] = true;
+                var originalEvaluate = expression.evaluate;
+                expression.evaluate = function(ctx){
+                    let value = originalEvaluate.apply(expression, arguments);
+                    let element = ctx.me;
+                    if (runtime.triggerEvent(element, "hyperscript:beep", {element, expression, value})) {
+                        var typeName;
+                        if (value) {
+                            if (value instanceof ElementCollection){
+                                typeName = "ElementCollection";
+                            } else if (value.constructor) {
+                                typeName = value.constructor.name;
+                            } else {
+                                typeName = "unknown";
+                            }
+                        } else {
+                            typeName = "object (null)"
+                        }
+                        var logValue = value;
+                        if (typeName === "String") {
+                            logValue = '"' + logValue + '"';
+                        } else if (value instanceof ElementCollection) {
+                            logValue = Array.from(value);
+                        }
+                        console.log("///_ BEEP! The expression (" + Tokens.sourceFor.call(expression).substr(6) + ") evaluates to:", logValue,  "of type " + typeName);
+                    }
+                    return value;
+                }
+                return expression;
+            }
+        });
+        var scanForwardQuery = function(start, root, match, wrap) {
+            var results = root.querySelectorAll(match);
+            for (var i = 0; i < results.length; i++) {
+                var elt = results[i];
+                if (elt.compareDocumentPosition(start) === Node.DOCUMENT_POSITION_PRECEDING) {
+                    return elt;
+                }
+            }
+            if (wrap) {
+                return results[0];
+            }
+        }
+        var scanBackwardsQuery = function(start, root, match, wrap) {
+            var results = root.querySelectorAll(match);
+            for (var i = results.length - 1; i >= 0; i--) {
+                var elt = results[i];
+                if (elt.compareDocumentPosition(start) === Node.DOCUMENT_POSITION_FOLLOWING) {
+                    return elt;
+                }
+            }
+            if (wrap) {
+                return results[results.length - 1];
+            }
+        }
+        var scanForwardArray = function(start, array, match, wrap) {
+            var matches = [];
+            Runtime.prototype.forEach(array, function(elt){
+                if (elt.matches(match) || elt === start) {
+                    matches.push(elt);
+                }
+            })
+            for (var i = 0; i < matches.length - 1; i++) {
+                var elt = matches[i];
+                if (elt === start) {
+                    return matches[i + 1];
+                }
+            }
+            if (wrap) {
+                var first = matches[0];
+                if (first && first.matches(match)) {
+                    return first;
+                }
+            }
+        }
+        var scanBackwardsArray = function(start, array, match, wrap) {
+            return scanForwardArray(start, Array.from(array).reverse(), match, wrap);
+        }
+        parser.addGrammarElement("relativePositionalExpression", function (parser, runtime, tokens) {
+            var op = tokens.matchAnyToken("next", "previous");
+            if (!op) return;
+            if (op.value === "next") {
+                var forwardSearch = true;
+            }
+            var thing = parser.parseElement("expression", tokens);
+            if (tokens.matchToken("from")) {
+                tokens.pushFollow("in");
+                try {
+                    var from = parser.requireElement("unaryExpression", tokens);
+                } finally {
+                    tokens.popFollow();
+                }
+            } else {
+                var from = parser.requireElement("implicitMeTarget", tokens);
+            }
+            var inSearch = false;
+            var withinElt;
+            if (tokens.matchToken("in")) {
+                inSearch = true;
+                var inElt = parser.requireElement("unaryExpression", tokens);
+            } else if (tokens.matchToken("within")) {
+                withinElt = parser.requireElement("unaryExpression", tokens);
+            } else {
+                withinElt = document.body;
+            }
+            var wrapping = false;
+            if (tokens.matchToken("with")) {
+                tokens.requireToken("wrapping")
+                wrapping = true;
+            }
+            return {
+                type: "relativePositionalExpression",
+                from: from,
+                forwardSearch: forwardSearch,
+                inSearch: inSearch,
+                wrapping: wrapping,
+                inElt: inElt,
+                withinElt: withinElt,
+                operator: op.value,
+                args: [thing, from, inElt, withinElt],
+                op: function (context, thing, from, inElt, withinElt) {
+                    var css = thing.css;
+                    if (css == null) {
+                        throw "Expected a CSS value";
+                    }
+                    if(inSearch) {
+                        if (inElt) {
+                            if (forwardSearch) {
+                                return scanForwardArray(from, inElt, css, wrapping);
+                            } else {
+                                return scanBackwardsArray(from, inElt, css, wrapping);
+                            }
+                        }
+                    } else {
+                        if (withinElt) {
+                            if (forwardSearch) {
+                                return scanForwardQuery(from, withinElt, css, wrapping);
+                            } else {
+                                return scanBackwardsQuery(from, withinElt, css, wrapping);
+                            }
+                        }
+                    }
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            }
+        });
+        parser.addGrammarElement("positionalExpression", function (parser, runtime, tokens) {
+            var op = tokens.matchAnyToken("first", "last", "random");
+            if (!op) return;
+            tokens.matchAnyToken("in", "from", "of");
+            var rhs = parser.requireElement("unaryExpression", tokens);
+            const operator = op.value;
+            return {
+                type: "positionalExpression",
+                rhs: rhs,
+                operator: op.value,
+                args: [rhs],
+                op: function (context, rhsVal) {
+                    if (rhsVal && !Array.isArray(rhsVal)) {
+                        if (rhsVal.children) {
+                            rhsVal = rhsVal.children;
+                        } else {
+                            rhsVal = Array.from(rhsVal);
+                        }
+                    }
+                    if (rhsVal) {
+                        if (operator === "first") {
+                            return rhsVal[0];
+                        } else if (operator === "last") {
+                            return rhsVal[rhsVal.length - 1];
+                        } else if (operator === "random") {
+                            return rhsVal[Math.floor(Math.random() * rhsVal.length)];
+                        }
+                    }
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                },
+            };
+        });
+        parser.addGrammarElement("mathOperator", function (parser, runtime, tokens) {
+            var expr = parser.parseElement("unaryExpression", tokens);
+            var mathOp,
+                initialMathOp = null;
+            mathOp = tokens.matchAnyOpToken("+", "-", "*", "/", "%");
+            while (mathOp) {
+                initialMathOp = initialMathOp || mathOp;
+                var operator = mathOp.value;
+                if (initialMathOp.value !== operator) {
+                    parser.raiseParseError(tokens, "You must parenthesize math operations with different operators");
+                }
+                var rhs = parser.parseElement("unaryExpression", tokens);
+                expr = {
+                    type: "mathOperator",
+                    lhs: expr,
+                    rhs: rhs,
+                    operator: operator,
+                    args: [expr, rhs],
+                    op: function (context, lhsVal, rhsVal) {
+                        if (operator === "+") {
+                            return lhsVal + rhsVal;
+                        } else if (operator === "-") {
+                            return lhsVal - rhsVal;
+                        } else if (operator === "*") {
+                            return lhsVal * rhsVal;
+                        } else if (operator === "/") {
+                            return lhsVal / rhsVal;
+                        } else if (operator === "%") {
+                            return lhsVal % rhsVal;
+                        }
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+                mathOp = tokens.matchAnyOpToken("+", "-", "*", "/", "%");
+            }
+            return expr;
+        });
+        parser.addGrammarElement("mathExpression", function (parser, runtime, tokens) {
+            return parser.parseAnyOf(["mathOperator", "unaryExpression"], tokens);
+        });
+        function sloppyContains(src, container, value){
+            if (container['contains']) {
+                return container.contains(value);
+            } else if (container['includes']) {
+                return container.includes(value);
+            } else {
+                throw Error("The value of " + src.sourceFor() + " does not have a contains or includes method on it");
+            }
+        }
+        function sloppyMatches(src, target, toMatch){
+            if (target['match']) {
+                return !!target.match(toMatch);
+            } else if (target['matches']) {
+                return target.matches(toMatch);
+            } else {
+                throw Error("The value of " + src.sourceFor() + " does not have a match or matches method on it");
+            }
+        }
+        parser.addGrammarElement("comparisonOperator", function (parser, runtime, tokens) {
+            var expr = parser.parseElement("mathExpression", tokens);
+            var comparisonToken = tokens.matchAnyOpToken("<", ">", "<=", ">=", "==", "===", "!=", "!==");
+            var operator = comparisonToken ? comparisonToken.value : null;
+            var hasRightValue = true; // By default, most comparisons require two values, but there are some exceptions.
+            var typeCheck = false;
+            if (operator == null) {
+                if (tokens.matchToken("is") || tokens.matchToken("am")) {
+                    if (tokens.matchToken("not")) {
+                        if (tokens.matchToken("in")) {
+                            operator = "not in";
+                        } else if (tokens.matchToken("a")) {
+                            operator = "not a";
+                            typeCheck = true;
+                        } else if (tokens.matchToken("empty")) {
+                            operator = "not empty";
+                            hasRightValue = false;
+                        } else {
+                            operator = "!=";
+                        }
+                    } else if (tokens.matchToken("in")) {
+                        operator = "in";
+                    } else if (tokens.matchToken("a")) {
+                        operator = "a";
+                        typeCheck = true;
+                    } else if (tokens.matchToken("empty")) {
+                        operator = "empty";
+                        hasRightValue = false;
+                    } else if (tokens.matchToken("less")) {
+                        tokens.requireToken("than");
+                        if (tokens.matchToken("or")) {
+                            tokens.requireToken("equal");
+                            tokens.requireToken("to");
+                            operator = "<=";
+                        } else {
+                            operator = "<";
+                        }
+                    } else if (tokens.matchToken("greater")) {
+                        tokens.requireToken("than");
+                        if (tokens.matchToken("or")) {
+                            tokens.requireToken("equal");
+                            tokens.requireToken("to");
+                            operator = ">=";
+                        } else {
+                            operator = ">";
+                        }
+                    } else {
+                        operator = "==";
+                    }
+                } else if (tokens.matchToken("exist") || tokens.matchToken("exists")) {
+                    operator = "exist";
+                    hasRightValue = false;
+                } else if (tokens.matchToken("matches") || tokens.matchToken("match")) {
+                    operator = "match";
+                } else if (tokens.matchToken("contains") || tokens.matchToken("contain")) {
+                    operator = "contain";
+                } else if (tokens.matchToken("includes") || tokens.matchToken("include")) {
+                    operator = "include";
+                } else if (tokens.matchToken("do") || tokens.matchToken("does")) {
+                    tokens.requireToken("not");
+                    if (tokens.matchToken("matches") || tokens.matchToken("match")) {
+                        operator = "not match";
+                    } else if (tokens.matchToken("contains") || tokens.matchToken("contain")) {
+                        operator = "not contain";
+                    } else if (tokens.matchToken("exist") || tokens.matchToken("exist")) {
+                        operator = "not exist";
+                        hasRightValue = false;
+                    } else if (tokens.matchToken("include")) {
+                        operator = "not include";
+                    } else {
+                        parser.raiseParseError(tokens, "Expected matches or contains");
+                    }
+                }
+            }
+            if (operator) {
+                // Do not allow chained comparisons, which is dumb
+                if (typeCheck) {
+                    var typeName = tokens.requireTokenType("IDENTIFIER");
+                    var nullOk = !tokens.matchOpToken("!");
+                } else if (hasRightValue) {
+                    var rhs = parser.requireElement("mathExpression", tokens);
+                    if (operator === "match" || operator === "not match") {
+                        rhs = rhs.css ? rhs.css : rhs;
+                    }
+                }
+                var lhs = expr;
+                expr = {
+                    type: "comparisonOperator",
+                    operator: operator,
+                    typeName: typeName,
+                    nullOk: nullOk,
+                    lhs: expr,
+                    rhs: rhs,
+                    args: [expr, rhs],
+                    op: function (context, lhsVal, rhsVal) {
+                        if (operator === "==") {
+                            return lhsVal == rhsVal;
+                        } else if (operator === "!=") {
+                            return lhsVal != rhsVal;
+                        }
+                        if (operator === "match") {
+                            return lhsVal != null && sloppyMatches(lhs, lhsVal, rhsVal);
+                        }
+                        if (operator === "not match") {
+                            return lhsVal == null || !sloppyMatches(lhs, lhsVal, rhsVal);
+                        }
+                        if (operator === "in") {
+                            return rhsVal != null && sloppyContains(rhs, rhsVal, lhsVal);
+                        }
+                        if (operator === "not in") {
+                            return rhsVal == null || !sloppyContains(rhs, rhsVal, lhsVal);
+                        }
+                        if (operator === "contain") {
+                            return lhsVal != null && sloppyContains(lhs, lhsVal, rhsVal);
+                        }
+                        if (operator === "not contain") {
+                            return lhsVal == null || !sloppyContains(lhs, lhsVal, rhsVal);
+                        }
+                        if (operator === "include") {
+                            return lhsVal != null && sloppyContains(lhs, lhsVal, rhsVal);
+                        }
+                        if (operator === "not include") {
+                            return lhsVal == null || !sloppyContains(lhs, lhsVal, rhsVal);
+                        }
+                        if (operator === "===") {
+                            return lhsVal === rhsVal;
+                        } else if (operator === "!==") {
+                            return lhsVal !== rhsVal;
+                        } else if (operator === "<") {
+                            return lhsVal < rhsVal;
+                        } else if (operator === ">") {
+                            return lhsVal > rhsVal;
+                        } else if (operator === "<=") {
+                            return lhsVal <= rhsVal;
+                        } else if (operator === ">=") {
+                            return lhsVal >= rhsVal;
+                        } else if (operator === "empty") {
+                            return runtime.isEmpty(lhsVal);
+                        } else if (operator === "not empty") {
+                            return !runtime.isEmpty(lhsVal);
+                        } else if (operator === "exist") {
+                            return runtime.doesExist(lhsVal);
+                        } else if (operator === "not exist") {
+                            return !runtime.doesExist(lhsVal);
+                        } else if (operator === "a") {
+                            return runtime.typeCheck(lhsVal, typeName.value, nullOk);
+                        } else if (operator === "not a") {
+                            return !runtime.typeCheck(lhsVal, typeName.value, nullOk);
+                        } else {
+                            throw "Unknown comparison : " + operator;
+                        }
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+            }
+            return expr;
+        });
+        parser.addGrammarElement("comparisonExpression", function (parser, runtime, tokens) {
+            return parser.parseAnyOf(["comparisonOperator", "mathExpression"], tokens);
+        });
+        parser.addGrammarElement("logicalOperator", function (parser, runtime, tokens) {
+            var expr = parser.parseElement("comparisonExpression", tokens);
+            var logicalOp,
+                initialLogicalOp = null;
+            logicalOp = tokens.matchToken("and") || tokens.matchToken("or");
+            while (logicalOp) {
+                initialLogicalOp = initialLogicalOp || logicalOp;
+                if (initialLogicalOp.value !== logicalOp.value) {
+                    parser.raiseParseError(tokens, "You must parenthesize logical operations with different operators");
+                }
+                var rhs = parser.requireElement("comparisonExpression", tokens);
+                const operator = logicalOp.value;
+                expr = {
+                    type: "logicalOperator",
+                    operator: operator,
+                    lhs: expr,
+                    rhs: rhs,
+                    args: [expr, rhs],
+                    op: function (context, lhsVal, rhsVal) {
+                        if (operator === "and") {
+                            return lhsVal && rhsVal;
+                        } else {
+                            return lhsVal || rhsVal;
+                        }
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+                logicalOp = tokens.matchToken("and") || tokens.matchToken("or");
+            }
+            return expr;
+        });
+        parser.addGrammarElement("logicalExpression", function (parser, runtime, tokens) {
+            return parser.parseAnyOf(["logicalOperator", "mathExpression"], tokens);
+        });
+        parser.addGrammarElement("asyncExpression", function (parser, runtime, tokens) {
+            if (tokens.matchToken("async")) {
+                var value = parser.requireElement("logicalExpression", tokens);
+                var expr = {
+                    type: "asyncExpression",
+                    value: value,
+                    evaluate: function (context) {
+                        return {
+                            asyncWrapper: true,
+                            value: this.value.evaluate(context), //OK
+                        };
+                    },
+                };
+                return expr;
+            } else {
+                return parser.parseElement("logicalExpression", tokens);
+            }
+        });
+        parser.addGrammarElement("expression", function (parser, runtime, tokens) {
+            tokens.matchToken("the"); // optional the
+            return parser.parseElement("asyncExpression", tokens);
+        });
+        parser.addGrammarElement("assignableExpression", function (parser, runtime, tokens) {
+            tokens.matchToken("the"); // optional the
+            // TODO obviously we need to generalize this as a left hand side / targetable concept
+            var expr = parser.parseElement("primaryExpression", tokens);
+            if (expr && (
+                expr.type === "symbol" ||
+                expr.type === "ofExpression" ||
+                expr.type === "propertyAccess" ||
+                expr.type === "attributeRefAccess" ||
+                expr.type === "attributeRef" ||
+                expr.type === "styleRef" ||
+                expr.type === "arrayIndex" ||
+                expr.type === "possessive")
+            ) {
+                return expr;
+            } else {
+                parser.raiseParseError(
+                    tokens,
+                    "A target expression must be writable.  The expression type '" + (expr && expr.type) + "' is not."
+                );
+            }
+            return expr;
+        });
+        parser.addGrammarElement("hyperscript", function (parser, runtime, tokens) {
+            var features = [];
+            if (tokens.hasMore()) {
+                while (parser.featureStart(tokens.currentToken()) || tokens.currentToken().value === "(") {
+                    var feature = parser.requireElement("feature", tokens);
+                    features.push(feature);
+                    tokens.matchToken("end"); // optional end
+                }
+            }
+            return {
+                type: "hyperscript",
+                features: features,
+                apply: function (target, source, args) {
+                    // no op
+                    for (const feature of features) {
+                        feature.install(target, source, args);
+                    }
+                },
+            };
+        });
+        var parseEventArgs = function (tokens) {
+            var args = [];
+            // handle argument list (look ahead 3)
+            if (
+                tokens.token(0).value === "(" &&
+                (tokens.token(1).value === ")" || tokens.token(2).value === "," || tokens.token(2).value === ")")
+            ) {
+                tokens.matchOpToken("(");
+                do {
+                    args.push(tokens.requireTokenType("IDENTIFIER"));
+                } while (tokens.matchOpToken(","));
+                tokens.requireOpToken(")");
+            }
+            return args;
+        };
+        parser.addFeature("on", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("on")) return;
+            var every = false;
+            if (tokens.matchToken("every")) {
+                every = true;
+            }
+            var events = [];
+            var displayName = null;
+            do {
+                var on = parser.requireElement("eventName", tokens, "Expected event name");
+                var eventName = on.evaluate(); // OK No Promise
+                if (displayName) {
+                    displayName = displayName + " or " + eventName;
+                } else {
+                    displayName = "on " + eventName;
+                }
+                var args = parseEventArgs(tokens);
+                var filter = null;
+                if (tokens.matchOpToken("[")) {
+                    filter = parser.requireElement("expression", tokens);
+                    tokens.requireOpToken("]");
+                }
+                if (tokens.currentToken().type === "NUMBER") {
+                    var startCountToken = tokens.consumeToken();
+                    var startCount = parseInt(startCountToken.value);
+                    if (tokens.matchToken("to")) {
+                        var endCountToken = tokens.consumeToken();
+                        var endCount = parseInt(endCountToken.value);
+                    } else if (tokens.matchToken("and")) {
+                        var unbounded = true;
+                        tokens.requireToken("on");
+                    }
+                }
+                if (eventName === "intersection") {
+                    var intersectionSpec = {};
+                    if (tokens.matchToken("with")) {
+                        intersectionSpec["with"] = parser.requireElement("expression", tokens).evaluate();
+                    }
+                    if (tokens.matchToken("having")) {
+                        do {
+                            if (tokens.matchToken("margin")) {
+                                intersectionSpec["rootMargin"] = parser.requireElement("stringLike", tokens).evaluate();
+                            } else if (tokens.matchToken("threshold")) {
+                                intersectionSpec["threshold"] = parser.requireElement("expression", tokens).evaluate();
+                            } else {
+                                parser.raiseParseError(tokens, "Unknown intersection config specification");
+                            }
+                        } while (tokens.matchToken("and"));
+                    }
+                } else if (eventName === "mutation") {
+                    var mutationSpec = {};
+                    if (tokens.matchToken("of")) {
+                        do {
+                            if (tokens.matchToken("anything")) {
+                                mutationSpec["attributes"] = true;
+                                mutationSpec["subtree"] = true;
+                                mutationSpec["characterData"] = true;
+                                mutationSpec["childList"] = true;
+                            } else if (tokens.matchToken("childList")) {
+                                mutationSpec["childList"] = true;
+                            } else if (tokens.matchToken("attributes")) {
+                                mutationSpec["attributes"] = true;
+                                mutationSpec["attributeOldValue"] = true;
+                            } else if (tokens.matchToken("subtree")) {
+                                mutationSpec["subtree"] = true;
+                            } else if (tokens.matchToken("characterData")) {
+                                mutationSpec["characterData"] = true;
+                                mutationSpec["characterDataOldValue"] = true;
+                            } else if (tokens.currentToken().type === "ATTRIBUTE_REF") {
+                                var attribute = tokens.consumeToken();
+                                if (mutationSpec["attributeFilter"] == null) {
+                                    mutationSpec["attributeFilter"] = [];
+                                }
+                                if (attribute.value.indexOf("@") == 0) {
+                                    mutationSpec["attributeFilter"].push(attribute.value.substring(1));
+                                } else {
+                                    parser.raiseParseError(
+                                        tokens,
+                                        "Only shorthand attribute references are allowed here"
+                                    );
+                                }
+                            } else {
+                                parser.raiseParseError(tokens, "Unknown mutation config specification");
+                            }
+                        } while (tokens.matchToken("or"));
+                    } else {
+                        mutationSpec["attributes"] = true;
+                        mutationSpec["characterData"] = true;
+                        mutationSpec["childList"] = true;
+                    }
+                }
+                var from = null;
+                var elsewhere = false;
+                if (tokens.matchToken("from")) {
+                    if (tokens.matchToken("elsewhere")) {
+                        elsewhere = true;
+                    } else {
+                        from = parser.parseElement("expression", tokens);
+                        if (!from) {
+                            parser.raiseParseError(tokens, 'Expected either target value or "elsewhere".');
+                        }
+                    }
+                }
+                // support both "elsewhere" and "from elsewhere"
+                if (from === null && elsewhere === false && tokens.matchToken("elsewhere")) {
+                    elsewhere = true;
+                }
+                if (tokens.matchToken("in")) {
+                    var inExpr = parser.parseElement('unaryExpression', tokens);
+                }
+                if (tokens.matchToken("debounced")) {
+                    tokens.requireToken("at");
+                    var timeExpr = parser.requireElement("expression", tokens);
+                    // @ts-ignore
+                    var debounceTime = timeExpr.evaluate({}); // OK No promise TODO make a literal time expr
+                } else if (tokens.matchToken("throttled")) {
+                    tokens.requireToken("at");
+                    var timeExpr = parser.requireElement("expression", tokens);
+                    // @ts-ignore
+                    var throttleTime = timeExpr.evaluate({}); // OK No promise TODO make a literal time expr
+                }
+                events.push({
+                    execCount: 0,
+                    every: every,
+                    on: eventName,
+                    args: args,
+                    filter: filter,
+                    from: from,
+                    inExpr: inExpr,
+                    elsewhere: elsewhere,
+                    startCount: startCount,
+                    endCount: endCount,
+                    unbounded: unbounded,
+                    debounceTime: debounceTime,
+                    throttleTime: throttleTime,
+                    mutationSpec: mutationSpec,
+                    intersectionSpec: intersectionSpec,
+                    debounced: undefined,
+                    lastExec: undefined,
+                });
+            } while (tokens.matchToken("or"));
+            var queueLast = true;
+            if (!every) {
+                if (tokens.matchToken("queue")) {
+                    if (tokens.matchToken("all")) {
+                        var queueAll = true;
+                        var queueLast = false;
+                    } else if (tokens.matchToken("first")) {
+                        var queueFirst = true;
+                    } else if (tokens.matchToken("none")) {
+                        var queueNone = true;
+                    } else {
+                        tokens.requireToken("last");
+                    }
+                }
+            }
+            var start = parser.requireElement("commandList", tokens);
+            parser.ensureTerminated(start);
+            if (tokens.matchToken("catch")) {
+                var errorSymbol = tokens.requireTokenType("IDENTIFIER").value;
+                var errorHandler = parser.requireElement("commandList", tokens);
+                parser.ensureTerminated(errorHandler);
+            }
+            if (tokens.matchToken("finally")) {
+                var finallyHandler = parser.requireElement("commandList", tokens);
+                parser.ensureTerminated(finallyHandler);
+            }
+            var onFeature = {
+                displayName: displayName,
+                events: events,
+                start: start,
+                every: every,
+                execCount: 0,
+                errorHandler: errorHandler,
+                errorSymbol: errorSymbol,
+                execute: function (/** @type {Context} */ ctx) {
+                    let eventQueueInfo = runtime.getEventQueueFor(ctx.me, onFeature);
+                    if (eventQueueInfo.executing && every === false) {
+                        if (queueNone || (queueFirst && eventQueueInfo.queue.length > 0)) {
+                            return;
+                        }
+                        if (queueLast) {
+                            eventQueueInfo.queue.length = 0;
+                        }
+                        eventQueueInfo.queue.push(ctx);
+                        return;
+                    }
+                    onFeature.execCount++;
+                    eventQueueInfo.executing = true;
+                    ctx.meta.onHalt = function () {
+                        eventQueueInfo.executing = false;
+                        var queued = eventQueueInfo.queue.shift();
+                        if (queued) {
+                            setTimeout(function () {
+                                onFeature.execute(queued);
+                            }, 1);
+                        }
+                    };
+                    ctx.meta.reject = function (err) {
+                        console.error(err.message ? err.message : err);
+                        var hypertrace = runtime.getHyperTrace(ctx, err);
+                        if (hypertrace) {
+                            hypertrace.print();
+                        }
+                        runtime.triggerEvent(ctx.me, "exception", {
+                            error: err,
+                        });
+                    };
+                    start.execute(ctx);
+                },
+                install: function (elt, source) {
+                    for (const eventSpec of onFeature.events) {
+                        var targets;
+                        if (eventSpec.elsewhere) {
+                            targets = [document];
+                        } else if (eventSpec.from) {
+                            targets = eventSpec.from.evaluate(runtime.makeContext(elt, onFeature, elt, null));
+                        } else {
+                            targets = [elt];
+                        }
+                        runtime.implicitLoop(targets, function (target) {
+                            // OK NO PROMISE
+                            var eventName = eventSpec.on;
+                            if (eventSpec.mutationSpec) {
+                                eventName = "hyperscript:mutation";
+                                const observer = new MutationObserver(function (mutationList, observer) {
+                                    if (!onFeature.executing) {
+                                        runtime.triggerEvent(target, eventName, {
+                                            mutationList: mutationList,
+                                            observer: observer,
+                                        });
+                                    }
+                                });
+                                observer.observe(target, eventSpec.mutationSpec);
+                            }
+                            if (eventSpec.intersectionSpec) {
+                                eventName = "hyperscript:insersection";
+                                const observer = new IntersectionObserver(function (entries) {
+                                    for (const entry of entries) {
+                                        var detail = {
+                                            observer: observer,
+                                        };
+                                        detail = Object.assign(detail, entry);
+                                        detail["intersecting"] = entry.isIntersecting;
+                                        runtime.triggerEvent(target, eventName, detail);
+                                    }
+                                }, eventSpec.intersectionSpec);
+                                observer.observe(target);
+                            }
+                            var addEventListener = target.addEventListener || target.on;
+                            addEventListener.call(target, eventName, function listener(evt) {
+                                // OK NO PROMISE
+                                if (typeof Node !== 'undefined' && elt instanceof Node && target !== elt && !elt.isConnected) {
+                                    target.removeEventListener(eventName, listener);
+                                    return;
+                                }
+                                var ctx = runtime.makeContext(elt, onFeature, elt, evt);
+                                if (eventSpec.elsewhere && elt.contains(evt.target)) {
+                                    return;
+                                }
+                                if (eventSpec.from) {
+                                    ctx.result = target;
+                                }
+                                // establish context
+                                for (const arg of eventSpec.args) {
+                                    let eventValue = ctx.event[arg.value];
+                                    if (eventValue !== undefined) {
+                                        ctx.locals[arg.value] = eventValue;
+                                    } else if ('detail' in ctx.event) {
+                                        ctx.locals[arg.value] = ctx.event['detail'][arg.value];
+                                    }
+                                }
+                                // install error handler if any
+                                ctx.meta.errorHandler = errorHandler;
+                                ctx.meta.errorSymbol = errorSymbol;
+                                ctx.meta.finallyHandler = finallyHandler;
+                                // apply filter
+                                if (eventSpec.filter) {
+                                    var initialCtx = ctx.meta.context;
+                                    ctx.meta.context = ctx.event;
+                                    try {
+                                        var value = eventSpec.filter.evaluate(ctx); //OK NO PROMISE
+                                        if (value) {
+                                            // match the javascript semantics for if statements
+                                        } else {
+                                            return;
+                                        }
+                                    } finally {
+                                        ctx.meta.context = initialCtx;
+                                    }
+                                }
+                                if (eventSpec.inExpr) {
+                                    var inElement = evt.target;
+                                    while (true) {
+                                        if (inElement.matches && inElement.matches(eventSpec.inExpr.css)) {
+                                            ctx.result = inElement;
+                                            break;
+                                        } else {
+                                            inElement = inElement.parentElement;
+                                            if (inElement == null) {
+                                                return; // no match found
+                                            }
+                                        }
+                                    }
+                                }
+                                // verify counts
+                                eventSpec.execCount++;
+                                if (eventSpec.startCount) {
+                                    if (eventSpec.endCount) {
+                                        if (
+                                            eventSpec.execCount < eventSpec.startCount ||
+                                            eventSpec.execCount > eventSpec.endCount
+                                        ) {
+                                            return;
+                                        }
+                                    } else if (eventSpec.unbounded) {
+                                        if (eventSpec.execCount < eventSpec.startCount) {
+                                            return;
+                                        }
+                                    } else if (eventSpec.execCount !== eventSpec.startCount) {
+                                        return;
+                                    }
+                                }
+                                //debounce
+                                if (eventSpec.debounceTime) {
+                                    if (eventSpec.debounced) {
+                                        clearTimeout(eventSpec.debounced);
+                                    }
+                                    eventSpec.debounced = setTimeout(function () {
+                                        onFeature.execute(ctx);
+                                    }, eventSpec.debounceTime);
+                                    return;
+                                }
+                                // throttle
+                                if (eventSpec.throttleTime) {
+                                    if (
+                                        eventSpec.lastExec &&
+                                        Date.now() < eventSpec.lastExec + eventSpec.throttleTime
+                                    ) {
+                                        return;
+                                    } else {
+                                        eventSpec.lastExec = Date.now();
+                                    }
+                                }
+                                // apply execute
+                                onFeature.execute(ctx);
+                            });
+                        });
+                    }
+                },
+            };
+            parser.setParent(start, onFeature);
+            return onFeature;
+        });
+        parser.addFeature("def", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("def")) return;
+            var functionName = parser.requireElement("dotOrColonPath", tokens);
+            var nameVal = functionName.evaluate(); // OK
+            var nameSpace = nameVal.split(".");
+            var funcName = nameSpace.pop();
+            var args = [];
+            if (tokens.matchOpToken("(")) {
+                if (tokens.matchOpToken(")")) {
+                    // emtpy args list
+                } else {
+                    do {
+                        args.push(tokens.requireTokenType("IDENTIFIER"));
+                    } while (tokens.matchOpToken(","));
+                    tokens.requireOpToken(")");
+                }
+            }
+            var start = parser.requireElement("commandList", tokens);
+            if (tokens.matchToken("catch")) {
+                var errorSymbol = tokens.requireTokenType("IDENTIFIER").value;
+                var errorHandler = parser.parseElement("commandList", tokens);
+            }
+            if (tokens.matchToken("finally")) {
+                var finallyHandler = parser.requireElement("commandList", tokens);
+                parser.ensureTerminated(finallyHandler);
+            }
+            var functionFeature = {
+                displayName:
+                    funcName +
+                    "(" +
+                    args
+                        .map(function (arg) {
+                            return arg.value;
+                        })
+                        .join(", ") +
+                    ")",
+                name: funcName,
+                args: args,
+                start: start,
+                errorHandler: errorHandler,
+                errorSymbol: errorSymbol,
+                finallyHandler: finallyHandler,
+                install: function (target, source) {
+                    var func = function () {
+                        // null, worker
+                        var ctx = runtime.makeContext(source, functionFeature, target, null);
+                        // install error handler if any
+                        ctx.meta.errorHandler = errorHandler;
+                        ctx.meta.errorSymbol = errorSymbol;
+                        ctx.meta.finallyHandler = finallyHandler;
+                        for (var i = 0; i < args.length; i++) {
+                            var name = args[i];
+                            var argumentVal = arguments[i];
+                            if (name) {
+                                ctx.locals[name.value] = argumentVal;
+                            }
+                        }
+                        ctx.meta.caller = arguments[args.length];
+                        if (ctx.meta.caller) {
+                            ctx.meta.callingCommand = ctx.meta.caller.meta.command;
+                        }
+                        var resolve,
+                            reject = null;
+                        var promise = new Promise(function (theResolve, theReject) {
+                            resolve = theResolve;
+                            reject = theReject;
+                        });
+                        start.execute(ctx);
+                        if (ctx.meta.returned) {
+                            return ctx.meta.returnValue;
+                        } else {
+                            ctx.meta.resolve = resolve;
+                            ctx.meta.reject = reject;
+                            return promise;
+                        }
+                    };
+                    func.hyperfunc = true;
+                    func.hypername = nameVal;
+                    runtime.assignToNamespace(target, nameSpace, funcName, func);
+                },
+            };
+            parser.ensureTerminated(start);
+            // terminate error handler if any
+            if (errorHandler) {
+                parser.ensureTerminated(errorHandler);
+            }
+            parser.setParent(start, functionFeature);
+            return functionFeature;
+        });
+        parser.addFeature("set", function (parser, runtime, tokens) {
+            let setCmd = parser.parseElement("setCommand", tokens);
+            if (setCmd) {
+                if (setCmd.target.scope !== "element") {
+                    parser.raiseParseError(tokens, "variables declared at the feature level must be element scoped.");
+                }
+                let setFeature = {
+                    start: setCmd,
+                    install: function (target, source) {
+                        setCmd && setCmd.execute(runtime.makeContext(target, setFeature, target, null));
+                    },
+                };
+                parser.ensureTerminated(setCmd);
+                return setFeature;
+            }
+        });
+        parser.addFeature("init", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("init")) return;
+            var immediately = tokens.matchToken("immediately");
+            var start = parser.requireElement("commandList", tokens);
+            var initFeature = {
+                start: start,
+                install: function (target, source) {
+                    let handler = function () {
+                        start && start.execute(runtime.makeContext(target, initFeature, target, null));
+                    };
+                    if (immediately) {
+                        handler();
+                    } else {
+                        setTimeout(handler, 0);
+                    }
+                },
+            };
+            // terminate body
+            parser.ensureTerminated(start);
+            parser.setParent(start, initFeature);
+            return initFeature;
+        });
+        parser.addFeature("worker", function (parser, runtime, tokens) {
+            if (tokens.matchToken("worker")) {
+                parser.raiseParseError(
+                    tokens,
+                    "In order to use the 'worker' feature, include " +
+                        "the _hyperscript worker plugin. See " +
+                        "https://hyperscript.org/features/worker/ for " +
+                        "more info."
+                );
+                return undefined
+            }
+        });
+        parser.addFeature("behavior", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("behavior")) return;
+            var path = parser.requireElement("dotOrColonPath", tokens).evaluate();
+            var nameSpace = path.split(".");
+            var name = nameSpace.pop();
+            var formalParams = [];
+            if (tokens.matchOpToken("(") && !tokens.matchOpToken(")")) {
+                do {
+                    formalParams.push(tokens.requireTokenType("IDENTIFIER").value);
+                } while (tokens.matchOpToken(","));
+                tokens.requireOpToken(")");
+            }
+            var hs = parser.requireElement("hyperscript", tokens);
+            for (var i = 0; i < hs.features.length; i++) {
+                var feature = hs.features[i];
+                feature.behavior = path;
+            }
+            return {
+                install: function (target, source) {
+                    runtime.assignToNamespace(
+                        globalScope.document && globalScope.document.body,
+                        nameSpace,
+                        name,
+                        function (target, source, innerArgs) {
+                            var internalData = runtime.getInternalData(target);
+                            var elementScope = getOrInitObject(internalData, path + "Scope");
+                            for (var i = 0; i < formalParams.length; i++) {
+                                elementScope[formalParams[i]] = innerArgs[formalParams[i]];
+                            }
+                            hs.apply(target, source);
+                        }
+                    );
+                },
+            };
+        });
+        parser.addFeature("install", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("install")) return;
+            var behaviorPath = parser.requireElement("dotOrColonPath", tokens).evaluate();
+            var behaviorNamespace = behaviorPath.split(".");
+            var args = parser.parseElement("namedArgumentList", tokens);
+            var installFeature;
+            return (installFeature = {
+                install: function (target, source) {
+                    runtime.unifiedEval(
+                        {
+                            args: [args],
+                            op: function (ctx, args) {
+                                var behavior = globalScope;
+                                for (var i = 0; i < behaviorNamespace.length; i++) {
+                                    behavior = behavior[behaviorNamespace[i]];
+                                    if (typeof behavior !== "object" && typeof behavior !== "function")
+                                        throw new Error("No such behavior defined as " + behaviorPath);
+                                }
+                                if (!(behavior instanceof Function))
+                                    throw new Error(behaviorPath + " is not a behavior");
+                                behavior(target, source, args);
+                            },
+                        },
+                        runtime.makeContext(target, installFeature, target)
+                    );
+                },
+            });
+        });
+        parser.addGrammarElement("jsBody", function (parser, runtime, tokens) {
+            var jsSourceStart = tokens.currentToken().start;
+            var jsLastToken = tokens.currentToken();
+            var funcNames = [];
+            var funcName = "";
+            var expectFunctionDeclaration = false;
+            while (tokens.hasMore()) {
+                jsLastToken = tokens.consumeToken();
+                var peek = tokens.token(0, true);
+                if (peek.type === "IDENTIFIER" && peek.value === "end") {
+                    break;
+                }
+                if (expectFunctionDeclaration) {
+                    if (jsLastToken.type === "IDENTIFIER" || jsLastToken.type === "NUMBER") {
+                        funcName += jsLastToken.value;
+                    } else {
+                        if (funcName !== "") funcNames.push(funcName);
+                        funcName = "";
+                        expectFunctionDeclaration = false;
+                    }
+                } else if (jsLastToken.type === "IDENTIFIER" && jsLastToken.value === "function") {
+                    expectFunctionDeclaration = true;
+                }
+            }
+            var jsSourceEnd = jsLastToken.end + 1;
+            return {
+                type: "jsBody",
+                exposedFunctionNames: funcNames,
+                jsSource: tokens.source.substring(jsSourceStart, jsSourceEnd),
+            };
+        });
+        parser.addFeature("js", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("js")) return;
+            var jsBody = parser.requireElement("jsBody", tokens);
+            var jsSource =
+                jsBody.jsSource +
+                "\nreturn { " +
+                jsBody.exposedFunctionNames
+                    .map(function (name) {
+                        return name + ":" + name;
+                    })
+                    .join(",") +
+                " } ";
+            var func = new Function(jsSource);
+            return {
+                jsSource: jsSource,
+                function: func,
+                exposedFunctionNames: jsBody.exposedFunctionNames,
+                install: function () {
+                    Object.assign(globalScope, func());
+                },
+            };
+        });
+        parser.addCommand("js", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("js")) return;
+            // Parse inputs
+            var inputs = [];
+            if (tokens.matchOpToken("(")) {
+                if (tokens.matchOpToken(")")) {
+                    // empty input list
+                } else {
+                    do {
+                        var inp = tokens.requireTokenType("IDENTIFIER");
+                        inputs.push(inp.value);
+                    } while (tokens.matchOpToken(","));
+                    tokens.requireOpToken(")");
+                }
+            }
+            var jsBody = parser.requireElement("jsBody", tokens);
+            tokens.matchToken("end");
+            var func = varargConstructor(Function, inputs.concat([jsBody.jsSource]));
+            var command = {
+                jsSource: jsBody.jsSource,
+                function: func,
+                inputs: inputs,
+                op: function (context) {
+                    var args = [];
+                    inputs.forEach(function (input) {
+                        args.push(runtime.resolveSymbol(input, context, 'default'));
+                    });
+                    var result = func.apply(globalScope, args);
+                    if (result && typeof result.then === "function") {
+                        return new Promise(function (resolve) {
+                            result.then(function (actualResult) {
+                                context.result = actualResult;
+                                resolve(runtime.findNext(this, context));
+                            });
+                        });
+                    } else {
+                        context.result = result;
+                        return runtime.findNext(this, context);
+                    }
+                },
+            };
+            return command;
+        });
+        parser.addCommand("async", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("async")) return;
+            if (tokens.matchToken("do")) {
+                var body = parser.requireElement("commandList", tokens);
+                // Append halt
+                var end = body;
+                while (end.next) end = end.next;
+                end.next = runtime.HALT;
+                tokens.requireToken("end");
+            } else {
+                var body = parser.requireElement("command", tokens);
+            }
+            var command = {
+                body: body,
+                op: function (context) {
+                    setTimeout(function () {
+                        body.execute(context);
+                    });
+                    return runtime.findNext(this, context);
+                },
+            };
+            parser.setParent(body, command);
+            return command;
+        });
+        parser.addCommand("tell", function (parser, runtime, tokens) {
+            var startToken = tokens.currentToken();
+            if (!tokens.matchToken("tell")) return;
+            var value = parser.requireElement("expression", tokens);
+            var body = parser.requireElement("commandList", tokens);
+            if (tokens.hasMore() && !parser.featureStart(tokens.currentToken())) {
+                tokens.requireToken("end");
+            }
+            var slot = "tell_" + startToken.start;
+            var tellCmd = {
+                value: value,
+                body: body,
+                args: [value],
+                resolveNext: function (context) {
+                    var iterator = context.meta.iterators[slot];
+                    if (iterator.index < iterator.value.length) {
+                        context.you = iterator.value[iterator.index++];
+                        return body;
+                    } else {
+                        // restore original me
+                        context.you = iterator.originalYou;
+                        if (this.next) {
+                            return this.next;
+                        } else {
+                            return runtime.findNext(this.parent, context);
+                        }
+                    }
+                },
+                op: function (context, value) {
+                    if (value == null) {
+                        value = [];
+                    } else if (!(Array.isArray(value) || value instanceof NodeList)) {
+                        value = [value];
+                    }
+                    context.meta.iterators[slot] = {
+                        originalYou: context.you,
+                        index: 0,
+                        value: value,
+                    };
+                    return this.resolveNext(context);
+                },
+            };
+            parser.setParent(body, tellCmd);
+            return tellCmd;
+        });
+        parser.addCommand("wait", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("wait")) return;
+            var command;
+            // wait on event
+            if (tokens.matchToken("for")) {
+                tokens.matchToken("a"); // optional "a"
+                var events = [];
+                do {
+                    var lookahead = tokens.token(0);
+                    if (lookahead.type === 'NUMBER' || lookahead.type === 'L_PAREN') {
+                        events.push({
+                            time: parser.requireElement('expression', tokens).evaluate() // TODO: do we want to allow async here?
+                        })
+                    } else {
+                        events.push({
+                            name: parser.requireElement("dotOrColonPath", tokens, "Expected event name").evaluate(),
+                            args: parseEventArgs(tokens),
+                        });
+                    }
+                } while (tokens.matchToken("or"));
+                if (tokens.matchToken("from")) {
+                    var on = parser.requireElement("expression", tokens);
+                }
+                // wait on event
+                command = {
+                    event: events,
+                    on: on,
+                    args: [on],
+                    op: function (context, on) {
+                        var target = on ? on : context.me;
+                        if (!(target instanceof EventTarget))
+                            throw new Error("Not a valid event target: " + this.on.sourceFor());
+                        return new Promise((resolve) => {
+                            var resolved = false;
+                            for (const eventInfo of events) {
+                                var listener = (event) => {
+                                    context.result = event;
+                                    if (eventInfo.args) {
+                                        for (const arg of eventInfo.args) {
+                                            context.locals[arg.value] =
+                                                event[arg.value] || (event.detail ? event.detail[arg.value] : null);
+                                        }
+                                    }
+                                    if (!resolved) {
+                                        resolved = true;
+                                        resolve(runtime.findNext(this, context));
+                                    }
+                                };
+                                if (eventInfo.name){
+                                    target.addEventListener(eventInfo.name, listener, {once: true});
+                                } else if (eventInfo.time != null) {
+                                    setTimeout(listener, eventInfo.time, eventInfo.time)
+                                }
+                            }
+                        });
+                    },
+                };
+                return command;
+            } else {
+                var time;
+                if (tokens.matchToken("a")) {
+                    tokens.requireToken("tick");
+                    time = 0;
+                } else {
+                    time = parser.requireElement("expression", tokens);
+                }
+                command = {
+                    type: "waitCmd",
+                    time: time,
+                    args: [time],
+                    op: function (context, timeValue) {
+                        return new Promise((resolve) => {
+                            setTimeout(() => {
+                                resolve(runtime.findNext(this, context));
+                            }, timeValue);
+                        });
+                    },
+                    execute: function (context) {
+                        return runtime.unifiedExec(this, context);
+                    },
+                };
+                return command;
+            }
+        });
+        // TODO  - colon path needs to eventually become part of ruby-style symbols
+        parser.addGrammarElement("dotOrColonPath", function (parser, runtime, tokens) {
+            var root = tokens.matchTokenType("IDENTIFIER");
+            if (root) {
+                var path = [root.value];
+                var separator = tokens.matchOpToken(".") || tokens.matchOpToken(":");
+                if (separator) {
+                    do {
+                        path.push(tokens.requireTokenType("IDENTIFIER", "NUMBER").value);
+                    } while (tokens.matchOpToken(separator.value));
+                }
+                return {
+                    type: "dotOrColonPath",
+                    path: path,
+                    evaluate: function () {
+                        return path.join(separator ? separator.value : "");
+                    },
+                };
+            }
+        });
+        parser.addGrammarElement("eventName", function (parser, runtime, tokens) {
+            var token;
+            if ((token = tokens.matchTokenType("STRING"))) {
+                return {
+                    evaluate: function() {
+                        return token.value;
+                    },
+                };
+            }
+            return parser.parseElement("dotOrColonPath", tokens);
+        });
+        function parseSendCmd(cmdType, parser, runtime, tokens) {
+            var eventName = parser.requireElement("eventName", tokens);
+            var details = parser.parseElement("namedArgumentList", tokens);
+            if ((cmdType === "send" && tokens.matchToken("to")) ||
+                (cmdType === "trigger" && tokens.matchToken("on"))) {
+                var toExpr = parser.requireElement("expression", tokens);
+            } else {
+                var toExpr = parser.requireElement("implicitMeTarget", tokens);
+            }
+            var sendCmd = {
+                eventName: eventName,
+                details: details,
+                to: toExpr,
+                args: [toExpr, eventName, details],
+                op: function (context, to, eventName, details) {
+                    runtime.nullCheck(to, toExpr);
+                    runtime.forEach(to, function (target) {
+                        runtime.triggerEvent(target, eventName, details, context.me);
+                    });
+                    return runtime.findNext(sendCmd, context);
+                },
+            };
+            return sendCmd;
+        }
+        parser.addCommand("trigger", function (parser, runtime, tokens) {
+            if (tokens.matchToken("trigger")) {
+                return parseSendCmd("trigger", parser, runtime, tokens);
+            }
+        });
+        parser.addCommand("send", function (parser, runtime, tokens) {
+            if (tokens.matchToken("send")) {
+                return parseSendCmd("send", parser, runtime, tokens);
+            }
+        });
+        var parseReturnFunction = function (parser, runtime, tokens, returnAValue) {
+            if (returnAValue) {
+                if (parser.commandBoundary(tokens.currentToken())) {
+                    parser.raiseParseError(tokens, "'return' commands must return a value.  If you do not wish to return a value, use 'exit' instead.");
+                } else {
+                    var value = parser.requireElement("expression", tokens);
+                }
+            }
+            var returnCmd = {
+                value: value,
+                args: [value],
+                op: function (context, value) {
+                    var resolve = context.meta.resolve;
+                    context.meta.returned = true;
+                    context.meta.returnValue = value;
+                    if (resolve) {
+                        if (value) {
+                            resolve(value);
+                        } else {
+                            resolve();
+                        }
+                    }
+                    return runtime.HALT;
+                },
+            };
+            return returnCmd;
+        };
+        parser.addCommand("return", function (parser, runtime, tokens) {
+            if (tokens.matchToken("return")) {
+                return parseReturnFunction(parser, runtime, tokens, true);
+            }
+        });
+        parser.addCommand("exit", function (parser, runtime, tokens) {
+            if (tokens.matchToken("exit")) {
+                return parseReturnFunction(parser, runtime, tokens, false);
+            }
+        });
+        parser.addCommand("halt", function (parser, runtime, tokens) {
+            if (tokens.matchToken("halt")) {
+                if (tokens.matchToken("the")) {
+                    tokens.requireToken("event");
+                    // optional possessive
+                    if (tokens.matchOpToken("'")) {
+                        tokens.requireToken("s");
+                    }
+                    var keepExecuting = true;
+                }
+                if (tokens.matchToken("bubbling")) {
+                    var bubbling = true;
+                } else if (tokens.matchToken("default")) {
+                    var haltDefault = true;
+                }
+                var exit = parseReturnFunction(parser, runtime, tokens, false);
+                var haltCmd = {
+                    keepExecuting: true,
+                    bubbling: bubbling,
+                    haltDefault: haltDefault,
+                    exit: exit,
+                    op: function (ctx) {
+                        if (ctx.event) {
+                            if (bubbling) {
+                                ctx.event.stopPropagation();
+                            } else if (haltDefault) {
+                                ctx.event.preventDefault();
+                            } else {
+                                ctx.event.stopPropagation();
+                                ctx.event.preventDefault();
+                            }
+                            if (keepExecuting) {
+                                return runtime.findNext(this, ctx);
+                            } else {
+                                return exit;
+                            }
+                        }
+                    },
+                };
+                return haltCmd;
+            }
+        });
+        parser.addCommand("log", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("log")) return;
+            var exprs = [parser.parseElement("expression", tokens)];
+            while (tokens.matchOpToken(",")) {
+                exprs.push(parser.requireElement("expression", tokens));
+            }
+            if (tokens.matchToken("with")) {
+                var withExpr = parser.requireElement("expression", tokens);
+            }
+            var logCmd = {
+                exprs: exprs,
+                withExpr: withExpr,
+                args: [withExpr, exprs],
+                op: function (ctx, withExpr, values) {
+                    if (withExpr) {
+                        withExpr.apply(null, values);
+                    } else {
+                        console.log.apply(null, values);
+                    }
+                    return runtime.findNext(this, ctx);
+                },
+            };
+            return logCmd;
+        });
+        parser.addCommand("throw", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("throw")) return;
+            var expr = parser.requireElement("expression", tokens);
+            var throwCmd = {
+                expr: expr,
+                args: [expr],
+                op: function (ctx, expr) {
+                    runtime.registerHyperTrace(ctx, expr);
+                    throw expr;
+                },
+            };
+            return throwCmd;
+        });
+        var parseCallOrGet = function (parser, runtime, tokens) {
+            var expr = parser.requireElement("expression", tokens);
+            var callCmd = {
+                expr: expr,
+                args: [expr],
+                op: function (context, result) {
+                    context.result = result;
+                    return runtime.findNext(callCmd, context);
+                },
+            };
+            return callCmd;
+        };
+        parser.addCommand("call", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("call")) return;
+            var call = parseCallOrGet(parser, runtime, tokens);
+            if (call.expr && call.expr.type !== "functionCall") {
+                parser.raiseParseError(tokens, "Must be a function invocation");
+            }
+            return call;
+        });
+        parser.addCommand("get", function (parser, runtime, tokens) {
+            if (tokens.matchToken("get")) {
+                return parseCallOrGet(parser, runtime, tokens);
+            }
+        });
+        parser.addCommand("make", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("make")) return;
+            tokens.matchToken("a") || tokens.matchToken("an");
+            var expr = parser.requireElement("expression", tokens);
+            var args = [];
+            if (expr.type !== "queryRef" && tokens.matchToken("from")) {
+                do {
+                    args.push(parser.requireElement("expression", tokens));
+                } while (tokens.matchOpToken(","));
+            }
+            if (tokens.matchToken("called")) {
+                var target = parser.requireElement("symbol", tokens);
+            }
+            var command;
+            if (expr.type === "queryRef") {
+                command = {
+                    op: function (ctx) {
+                        var match,
+                            tagname = "div",
+                            id,
+                            classes = [];
+                        var re = /(?:(^|#|\.)([^#\. ]+))/g;
+                        while ((match = re.exec(expr.css))) {
+                            if (match[1] === "") tagname = match[2].trim();
+                            else if (match[1] === "#") id = match[2].trim();
+                            else classes.push(match[2].trim());
+                        }
+                        var result = document.createElement(tagname);
+                        if (id !== undefined) result.id = id;
+                        for (var i = 0; i < classes.length; i++) {
+                            var cls = classes[i];
+                            result.classList.add(cls)
+                        }
+                        ctx.result = result;
+                        if (target){
+                            runtime.setSymbol(target.name, ctx, target.scope, result);
+                        }
+                        return runtime.findNext(this, ctx);
+                    },
+                };
+                return command;
+            } else {
+                command = {
+                    args: [expr, args],
+                    op: function (ctx, expr, args) {
+                        ctx.result = varargConstructor(expr, args);
+                        if (target){
+                            runtime.setSymbol(target.name, ctx, target.scope, ctx.result);
+                        }
+                        return runtime.findNext(this, ctx);
+                    },
+                };
+                return command;
+            }
+        });
+        parser.addGrammarElement("pseudoCommand", function (parser, runtime, tokens) {
+            let lookAhead = tokens.token(1);
+            if (!(lookAhead && lookAhead.op && (lookAhead.value === '.' || lookAhead.value === "("))) {
+                return null;
+            }
+            var expr = parser.requireElement("primaryExpression", tokens);
+            var rootRoot = expr.root;
+            var root = expr;
+            while (rootRoot.root != null) {
+                root = root.root;
+                rootRoot = rootRoot.root;
+            }
+            if (expr.type !== "functionCall") {
+                parser.raiseParseError(tokens, "Pseudo-commands must be function calls");
+            }
+            if (root.type === "functionCall" && root.root.root == null) {
+                if (tokens.matchAnyToken("the", "to", "on", "with", "into", "from", "at")) {
+                    var realRoot = parser.requireElement("expression", tokens);
+                } else if (tokens.matchToken("me")) {
+                    var realRoot = parser.requireElement("implicitMeTarget", tokens);
+                }
+            }
+            /** @type {ASTNode} */
+            var pseudoCommand
+            if(realRoot){
+                pseudoCommand = {
+                    type: "pseudoCommand",
+                    root: realRoot,
+                    argExressions: root.argExressions,
+                    args: [realRoot, root.argExressions],
+                    op: function (context, rootRoot, args) {
+                        runtime.nullCheck(rootRoot, realRoot);
+                        var func = rootRoot[root.root.name];
+                        runtime.nullCheck(func, root);
+                        if (func.hyperfunc) {
+                            args.push(context);
+                        }
+                        context.result = func.apply(rootRoot, args);
+                        return runtime.findNext(pseudoCommand, context);
+                    },
+                    execute: function (context) {
+                        return runtime.unifiedExec(this, context);
+                    },
+                }
+            } else {
+                pseudoCommand = {
+                    type: "pseudoCommand",
+                    expr: expr,
+                    args: [expr],
+                    op: function (context, result) {
+                        context.result = result;
+                        return runtime.findNext(pseudoCommand, context);
+                    },
+                    execute: function (context) {
+                        return runtime.unifiedExec(this, context);
+                    },
+                };
+            }
+            return pseudoCommand;
+        });
+        /**
+        * @param {Parser} parser
+        * @param {Runtime} runtime
+        * @param {Tokens} tokens
+        * @param {*} target
+        * @param {*} value
+        * @returns
+        */
+        var makeSetter = function (parser, runtime, tokens, target, value) {
+            var symbolWrite = target.type === "symbol";
+            var attributeWrite = target.type === "attributeRef";
+            var styleWrite = target.type === "styleRef";
+            var arrayWrite = target.type === "arrayIndex";
+            if (!(attributeWrite || styleWrite || symbolWrite) && target.root == null) {
+                parser.raiseParseError(tokens, "Can only put directly into symbols, not references");
+            }
+            var rootElt = null;
+            var prop = null;
+            if (symbolWrite) {
+                // rootElt is null
+            } else if (attributeWrite || styleWrite) {
+                rootElt = parser.requireElement("implicitMeTarget", tokens);
+                var attribute = target;
+            } else if(arrayWrite) {
+                prop = target.firstIndex;
+                rootElt = target.root;
+            } else {
+                prop = target.prop ? target.prop.value : null;
+                var attribute = target.attribute;
+                rootElt = target.root;
+            }
+            /** @type {ASTNode} */
+            var setCmd = {
+                target: target,
+                symbolWrite: symbolWrite,
+                value: value,
+                args: [rootElt, prop, value],
+                op: function (context, root, prop, valueToSet) {
+                    if (symbolWrite) {
+                        runtime.setSymbol(target.name, context, target.scope, valueToSet);
+                    } else {
+                        runtime.nullCheck(root, rootElt);
+                        if (arrayWrite) {
+                            root[prop] = valueToSet;
+                        } else {
+                            runtime.implicitLoop(root, function (elt) {
+                                if (attribute) {
+                                    if (attribute.type === "attributeRef") {
+                                        if (valueToSet == null) {
+                                            elt.removeAttribute(attribute.name);
+                                        } else {
+                                            elt.setAttribute(attribute.name, valueToSet);
+                                        }
+                                    } else {
+                                        elt.style[attribute.name] = valueToSet;
+                                    }
+                                } else {
+                                    elt[prop] = valueToSet;
+                                }
+                            });
+                        }
+                    }
+                    return runtime.findNext(this, context);
+                },
+            };
+            return setCmd;
+        };
+        parser.addCommand("default", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("default")) return;
+            var target = parser.requireElement("assignableExpression", tokens);
+            tokens.requireToken("to");
+            var value = parser.requireElement("expression", tokens);
+            /** @type {ASTNode} */
+            var setter = makeSetter(parser, runtime, tokens, target, value);
+            var defaultCmd = {
+                target: target,
+                value: value,
+                setter: setter,
+                args: [target],
+                op: function (context, target) {
+                    if (target) {
+                        return runtime.findNext(this, context);
+                    } else {
+                        return setter;
+                    }
+                },
+            };
+            setter.parent = defaultCmd;
+            return defaultCmd;
+        });
+        parser.addCommand("set", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("set")) return;
+            if (tokens.currentToken().type === "L_BRACE") {
+                var obj = parser.requireElement("objectLiteral", tokens);
+                tokens.requireToken("on");
+                var target = parser.requireElement("expression", tokens);
+                var command = {
+                    objectLiteral: obj,
+                    target: target,
+                    args: [obj, target],
+                    op: function (ctx, obj, target) {
+                        Object.assign(target, obj);
+                        return runtime.findNext(this, ctx);
+                    },
+                };
+                return command;
+            }
+            try {
+                tokens.pushFollow("to");
+                var target = parser.requireElement("assignableExpression", tokens);
+            } finally {
+                tokens.popFollow();
+            }
+            tokens.requireToken("to");
+            var value = parser.requireElement("expression", tokens);
+            return makeSetter(parser, runtime, tokens, target, value);
+        });
+        parser.addCommand("if", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("if")) return;
+            var expr = parser.requireElement("expression", tokens);
+            tokens.matchToken("then"); // optional 'then'
+            var trueBranch = parser.parseElement("commandList", tokens);
+            if (tokens.matchToken("else") || tokens.matchToken("otherwise")) {
+                var falseBranch = parser.parseElement("commandList", tokens);
+            }
+            if (tokens.hasMore()) {
+                tokens.requireToken("end");
+            }
+            /** @type {ASTNode} */
+            var ifCmd = {
+                expr: expr,
+                trueBranch: trueBranch,
+                falseBranch: falseBranch,
+                args: [expr],
+                op: function (context, exprValue) {
+                    if (exprValue) {
+                        return trueBranch;
+                    } else if (falseBranch) {
+                        return falseBranch;
+                    } else {
+                        return runtime.findNext(this, context);
+                    }
+                },
+            };
+            parser.setParent(trueBranch, ifCmd);
+            parser.setParent(falseBranch, ifCmd);
+            return ifCmd;
+        });
+        var parseRepeatExpression = function (parser, tokens, runtime, startedWithForToken) {
+            var innerStartToken = tokens.currentToken();
+            var identifier;
+            if (tokens.matchToken("for") || startedWithForToken) {
+                var identifierToken = tokens.requireTokenType("IDENTIFIER");
+                identifier = identifierToken.value;
+                tokens.requireToken("in");
+                var expression = parser.requireElement("expression", tokens);
+            } else if (tokens.matchToken("in")) {
+                identifier = "it";
+                var expression = parser.requireElement("expression", tokens);
+            } else if (tokens.matchToken("while")) {
+                var whileExpr = parser.requireElement("expression", tokens);
+            } else if (tokens.matchToken("until")) {
+                var isUntil = true;
+                if (tokens.matchToken("event")) {
+                    var evt = parser.requireElement("dotOrColonPath", tokens, "Expected event name");
+                    if (tokens.matchToken("from")) {
+                        var on = parser.requireElement("expression", tokens);
+                    }
+                } else {
+                    var whileExpr = parser.requireElement("expression", tokens);
+                }
+            } else {
+                if (!parser.commandBoundary(tokens.currentToken()) &&
+                    tokens.currentToken().value !== 'forever') {
+                    var times = parser.requireElement("expression", tokens);
+                    tokens.requireToken("times");
+                } else {
+                    tokens.matchToken("forever"); // consume optional forever
+                    var forever = true;
+                }
+            }
+            if (tokens.matchToken("index")) {
+                var identifierToken = tokens.requireTokenType("IDENTIFIER");
+                var indexIdentifier = identifierToken.value;
+            }
+            var loop = parser.parseElement("commandList", tokens);
+            if (loop && evt) {
+                // if this is an event based loop, wait a tick at the end of the loop so that
+                // events have a chance to trigger in the loop condition o_O)))
+                var last = loop;
+                while (last.next) {
+                    last = last.next;
+                }
+                var waitATick = {
+                    type: "waitATick",
+                    op: function () {
+                        return new Promise(function (resolve) {
+                            setTimeout(function () {
+                                resolve(runtime.findNext(waitATick));
+                            }, 0);
+                        });
+                    },
+                };
+                last.next = waitATick;
+            }
+            if (tokens.hasMore()) {
+                tokens.requireToken("end");
+            }
+            if (identifier == null) {
+                identifier = "_implicit_repeat_" + innerStartToken.start;
+                var slot = identifier;
+            } else {
+                var slot = identifier + "_" + innerStartToken.start;
+            }
+            var repeatCmd = {
+                identifier: identifier,
+                indexIdentifier: indexIdentifier,
+                slot: slot,
+                expression: expression,
+                forever: forever,
+                times: times,
+                until: isUntil,
+                event: evt,
+                on: on,
+                whileExpr: whileExpr,
+                resolveNext: function () {
+                    return this;
+                },
+                loop: loop,
+                args: [whileExpr, times],
+                op: function (context, whileValue, times) {
+                    var iteratorInfo = context.meta.iterators[slot];
+                    var keepLooping = false;
+                    var loopVal = null;
+                    if (this.forever) {
+                        keepLooping = true;
+                    } else if (this.until) {
+                        if (evt) {
+                            keepLooping = context.meta.iterators[slot].eventFired === false;
+                        } else {
+                            keepLooping = whileValue !== true;
+                        }
+                    } else if (whileExpr) {
+                        keepLooping = whileValue;
+                    } else if (times) {
+                        keepLooping = iteratorInfo.index < times;
+                    } else {
+                        var nextValFromIterator = iteratorInfo.iterator.next();
+                        keepLooping = !nextValFromIterator.done;
+                        loopVal = nextValFromIterator.value;
+                    }
+                    if (keepLooping) {
+                        if (iteratorInfo.value) {
+                            context.result = context.locals[identifier] = loopVal;
+                        } else {
+                            context.result = iteratorInfo.index;
+                        }
+                        if (indexIdentifier) {
+                            context.locals[indexIdentifier] = iteratorInfo.index;
+                        }
+                        iteratorInfo.index++;
+                        return loop;
+                    } else {
+                        context.meta.iterators[slot] = null;
+                        return runtime.findNext(this.parent, context);
+                    }
+                },
+            };
+            parser.setParent(loop, repeatCmd);
+            var repeatInit = {
+                name: "repeatInit",
+                args: [expression, evt, on],
+                op: function (context, value, event, on) {
+                    var iteratorInfo = {
+                        index: 0,
+                        value: value,
+                        eventFired: false,
+                    };
+                    context.meta.iterators[slot] = iteratorInfo;
+                    if (value && value[Symbol.iterator]) {
+                        iteratorInfo.iterator = value[Symbol.iterator]();
+                    }
+                    if (evt) {
+                        var target = on || context.me;
+                        target.addEventListener(
+                            event,
+                            function (e) {
+                                context.meta.iterators[slot].eventFired = true;
+                            },
+                            { once: true }
+                        );
+                    }
+                    return repeatCmd; // continue to loop
+                },
+                execute: function (context) {
+                    return runtime.unifiedExec(this, context);
+                },
+            };
+            parser.setParent(repeatCmd, repeatInit);
+            return repeatInit;
+        };
+        parser.addCommand("repeat", function (parser, runtime, tokens) {
+            if (tokens.matchToken("repeat")) {
+                return parseRepeatExpression(parser, tokens, runtime, false);
+            }
+        });
+        parser.addCommand("for", function (parser, runtime, tokens) {
+            if (tokens.matchToken("for")) {
+                return parseRepeatExpression(parser, tokens, runtime, true);
+            }
+        });
+      parser.addCommand("continue", function (parser, runtime, tokens) {
+        if (!tokens.matchToken("continue")) return;
+        var command = {
+          op: function (context) {
+            // scan for the closest repeat statement
+            for (var parent = this.parent ; true ; parent = parent.parent) {
+              if (parent == undefined) {
+                parser.raiseParseError(tokens, "Command `continue` cannot be used outside of a `repeat` loop.")
+              }
+              if (parent.loop != undefined) {
+                return parent.resolveNext(context)
+              }
+            }
+          }
+        };
+        return command;
+      });
+      parser.addCommand("break", function (parser, runtime, tokens) {
+        if (!tokens.matchToken("break")) return;
+        var command = {
+          op: function (context) {
+            // scan for the closest repeat statement
+            for (var parent = this.parent ; true ; parent = parent.parent) {
+              if (parent == undefined) {
+                parser.raiseParseError(tokens, "Command `continue` cannot be used outside of a `repeat` loop.")
+              }
+              if (parent.loop != undefined) {
+                  return runtime.findNext(parent.parent, context);
+              }
+            }
+          }
+        };
+        return command;
+      });
+        parser.addGrammarElement("stringLike", function (parser, runtime, tokens) {
+            return parser.parseAnyOf(["string", "nakedString"], tokens);
+        });
+        parser.addCommand("append", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("append")) return;
+            var targetExpr = null;
+            var value = parser.requireElement("expression", tokens);
+            /** @type {ASTNode} */
+            var implicitResultSymbol = {
+                type: "symbol",
+                evaluate: function (context) {
+                    return runtime.resolveSymbol("result", context);
+                },
+            };
+            if (tokens.matchToken("to")) {
+                targetExpr = parser.requireElement("expression", tokens);
+            } else {
+                targetExpr = implicitResultSymbol;
+            }
+            var setter = null;
+            if (targetExpr.type === "symbol" || targetExpr.type === "attributeRef" || targetExpr.root != null) {
+                setter = makeSetter(parser, runtime, tokens, targetExpr, implicitResultSymbol);
+            }
+            var command = {
+                value: value,
+                target: targetExpr,
+                args: [targetExpr, value],
+                op: function (context, target, value) {
+                    if (Array.isArray(target)) {
+                        target.push(value);
+                        return runtime.findNext(this, context);
+                    } else if (target instanceof Element) {
+                        target.innerHTML += value;
+                        return runtime.findNext(this, context);
+                    } else if(setter) {
+                        context.result = (target || "") + value;
+                        return setter;
+                    } else {
+                        throw Error("Unable to append a value!")
+                    }
+                },
+                execute: function (context) {
+                    return runtime.unifiedExec(this, context/*, value, target*/);
+                },
+            };
+            if (setter != null) {
+                setter.parent = command;
+            }
+            return command;
+        });
+        function parsePickRange(parser, runtime, tokens) {
+            tokens.matchToken("at") || tokens.matchToken("from");
+            const rv = { includeStart: true, includeEnd: false }
+            rv.from = tokens.matchToken("start") ? 0 : parser.requireElement("expression", tokens)
+            if (tokens.matchToken("to") || tokens.matchOpToken("..")) {
+              if (tokens.matchToken("end")) {
+                rv.toEnd = true;
+              } else {
+                rv.to = parser.requireElement("expression", tokens);
+              }
+            }
+            if (tokens.matchToken("inclusive")) rv.includeEnd = true;
+            else if (tokens.matchToken("exclusive")) rv.includeStart = false;
+            return rv;
+        }
+        class RegExpIterator {
+          constructor(re, str) {
+            this.re = re;
+            this.str = str;
+          }
+          next() {
+            const match = this.re.exec(this.str);
+            if (match === null) return { done: true };
+            else return { value: match };
+          }
+        }
+        class RegExpIterable {
+          constructor(re, flags, str) {
+            this.re = re;
+            this.flags = flags;
+            this.str = str;
+          }
+          [Symbol.iterator]() {
+            return new RegExpIterator(new RegExp(this.re, this.flags), this.str);
+          }
+        }
+        parser.addCommand("pick", (parser, runtime, tokens) => {
+          if (!tokens.matchToken("pick")) return;
+          tokens.matchToken("the");
+          if (tokens.matchToken("item") || tokens.matchToken("items")
+           || tokens.matchToken("character") || tokens.matchToken("characters")) {
+            const range = parsePickRange(parser, runtime, tokens);
+            tokens.requireToken("from");
+            const root = parser.requireElement("expression", tokens);
+            return {
+              args: [root, range.from, range.to],
+              op(ctx, root, from, to) {
+                if (range.toEnd) to = root.length;
+                if (!range.includeStart) from++;
+                if (range.includeEnd) to++;
+                if (to == null || to == undefined) to = from + 1;
+                ctx.result = root.slice(from, to);
+                return runtime.findNext(this, ctx);
+              }
+            }
+          }
+          if (tokens.matchToken("match")) {
+            tokens.matchToken("of");
+            const re = parser.parseElement("expression", tokens);
+            let flags = ""
+            if (tokens.matchOpToken("|")) {
+              flags = tokens.requireToken("identifier").value;
+            }
+            tokens.requireToken("from");
+            const root = parser.parseElement("expression", tokens);
+            return {
+              args: [root, re],
+              op(ctx, root, re) {
+                ctx.result = new RegExp(re, flags).exec(root);
+                return runtime.findNext(this, ctx);
+              }
+            }
+          }
+          if (tokens.matchToken("matches")) {
+            tokens.matchToken("of");
+            const re = parser.parseElement("expression", tokens);
+            let flags = "gu"
+            if (tokens.matchOpToken("|")) {
+              flags = 'g' + tokens.requireToken("identifier").value.replace('g', '');
+            }
+            console.log('flags', flags)
+            tokens.requireToken("from");
+            const root = parser.parseElement("expression", tokens);
+            return {
+              args: [root, re],
+              op(ctx, root, re) {
+                ctx.result = new RegExpIterable(re, flags, root);
+                return runtime.findNext(this, ctx);
+              }
+            }
+          }
+        });
+        parser.addCommand("increment", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("increment")) return;
+            var amountExpr;
+            // This is optional.  Defaults to "result"
+            var target = parser.parseElement("assignableExpression", tokens);
+            // This is optional. Defaults to 1.
+            if (tokens.matchToken("by")) {
+                amountExpr = parser.requireElement("expression", tokens);
+            }
+            var implicitIncrementOp = {
+                type: "implicitIncrementOp",
+                target: target,
+                args: [target, amountExpr],
+                op: function (context, targetValue, amount) {
+                    targetValue = targetValue ? parseFloat(targetValue) : 0;
+                    amount = amountExpr ? parseFloat(amount) : 1;
+                    var newValue = targetValue + amount;
+                    context.result = newValue;
+                    return newValue;
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                }
+            };
+            return makeSetter(parser, runtime, tokens, target, implicitIncrementOp);
+        });
+        parser.addCommand("decrement", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("decrement")) return;
+            var amountExpr;
+            // This is optional.  Defaults to "result"
+            var target = parser.parseElement("assignableExpression", tokens);
+            // This is optional. Defaults to 1.
+            if (tokens.matchToken("by")) {
+                amountExpr = parser.requireElement("expression", tokens);
+            }
+            var implicitDecrementOp = {
+                type: "implicitDecrementOp",
+                target: target,
+                args: [target, amountExpr],
+                op: function (context, targetValue, amount) {
+                    targetValue = targetValue ? parseFloat(targetValue) : 0;
+                    amount = amountExpr ? parseFloat(amount) : 1;
+                    var newValue = targetValue - amount;
+                    context.result = newValue;
+                    return newValue;
+                },
+                evaluate: function (context) {
+                    return runtime.unifiedEval(this, context);
+                }
+            };
+            return makeSetter(parser, runtime, tokens, target, implicitDecrementOp);
+        });
+        function parseConversionInfo(tokens, parser) {
+            var type = "text";
+            var conversion;
+            tokens.matchToken("a") || tokens.matchToken("an");
+            if (tokens.matchToken("json") || tokens.matchToken("Object")) {
+                type = "json";
+            } else if (tokens.matchToken("response")) {
+                type = "response";
+            } else if (tokens.matchToken("html")) {
+                type = "html";
+            } else if (tokens.matchToken("text")) {
+                // default, ignore
+            } else {
+                conversion = parser.requireElement("dotOrColonPath", tokens).evaluate();
+            }
+            return {type, conversion};
+        }
+        parser.addCommand("fetch", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("fetch")) return;
+            var url = parser.requireElement("stringLike", tokens);
+            if (tokens.matchToken("as")) {
+                var conversionInfo = parseConversionInfo(tokens, parser);
+            }
+            if (tokens.matchToken("with") && tokens.currentToken().value !== "{") {
+                var args = parser.parseElement("nakedNamedArgumentList", tokens);
+            } else {
+                var args = parser.parseElement("objectLiteral", tokens);
+            }
+            if (conversionInfo == null && tokens.matchToken("as")) {
+                conversionInfo = parseConversionInfo(tokens, parser);
+            }
+            var type = conversionInfo ? conversionInfo.type : "text";
+            var conversion = conversionInfo ? conversionInfo.conversion : null
+            /** @type {ASTNode} */
+            var fetchCmd = {
+                url: url,
+                argExpressions: args,
+                args: [url, args],
+                op: function (context, url, args) {
+                    var detail = args || {};
+                    detail["sender"] = context.me;
+                    detail["headers"] = detail["headers"] || {}
+                    var abortController = new AbortController();
+                    let abortListener = context.me.addEventListener('fetch:abort', function(){
+                        abortController.abort();
+                    }, {once: true});
+                    detail['signal'] = abortController.signal;
+                    runtime.triggerEvent(context.me, "hyperscript:beforeFetch", detail);
+                    runtime.triggerEvent(context.me, "fetch:beforeRequest", detail);
+                    args = detail;
+                    var finished = false;
+                    if (args.timeout) {
+                        setTimeout(function () {
+                            if (!finished) {
+                                abortController.abort();
+                            }
+                        }, args.timeout);
+                    }
+                    return fetch(url, args)
+                        .then(function (resp) {
+                            let resultDetails = {response:resp};
+                            runtime.triggerEvent(context.me, "fetch:afterResponse", resultDetails);
+                            resp = resultDetails.response;
+                            if (type === "response") {
+                                context.result = resp;
+                                runtime.triggerEvent(context.me, "fetch:afterRequest", {result:resp});
+                                finished = true;
+                                return runtime.findNext(fetchCmd, context);
+                            }
+                            if (type === "json") {
+                                return resp.json().then(function (result) {
+                                    context.result = result;
+                                    runtime.triggerEvent(context.me, "fetch:afterRequest", {result});
+                                    finished = true;
+                                    return runtime.findNext(fetchCmd, context);
+                                });
+                            }
+                            return resp.text().then(function (result) {
+                                if (conversion) result = runtime.convertValue(result, conversion);
+                                if (type === "html") result = runtime.convertValue(result, "Fragment");
+                                context.result = result;
+                                runtime.triggerEvent(context.me, "fetch:afterRequest", {result});
+                                finished = true;
+                                return runtime.findNext(fetchCmd, context);
+                            });
+                        })
+                        .catch(function (reason) {
+                            runtime.triggerEvent(context.me, "fetch:error", {
+                                reason: reason,
+                            });
+                            throw reason;
+                        }).finally(function(){
+                            context.me.removeEventListener('fetch:abort', abortListener);
+                        });
+                },
+            };
+            return fetchCmd;
+        });
+    }
+    function hyperscriptWebGrammar(parser) {
+        parser.addCommand("settle", function (parser, runtime, tokens) {
+            if (tokens.matchToken("settle")) {
+                if (!parser.commandBoundary(tokens.currentToken())) {
+                    var onExpr = parser.requireElement("expression", tokens);
+                } else {
+                    var onExpr = parser.requireElement("implicitMeTarget", tokens);
+                }
+                var settleCommand = {
+                    type: "settleCmd",
+                    args: [onExpr],
+                    op: function (context, on) {
+                        runtime.nullCheck(on, onExpr);
+                        var resolve = null;
+                        var resolved = false;
+                        var transitionStarted = false;
+                        var promise = new Promise(function (r) {
+                            resolve = r;
+                        });
+                        // listen for a transition begin
+                        on.addEventListener(
+                            "transitionstart",
+                            function () {
+                                transitionStarted = true;
+                            },
+                            { once: true }
+                        );
+                        // if no transition begins in 500ms, cancel
+                        setTimeout(function () {
+                            if (!transitionStarted && !resolved) {
+                                resolve(runtime.findNext(settleCommand, context));
+                            }
+                        }, 500);
+                        // continue on a transition emd
+                        on.addEventListener(
+                            "transitionend",
+                            function () {
+                                if (!resolved) {
+                                    resolve(runtime.findNext(settleCommand, context));
+                                }
+                            },
+                            { once: true }
+                        );
+                        return promise;
+                    },
+                    execute: function (context) {
+                        return runtime.unifiedExec(this, context);
+                    },
+                };
+                return settleCommand;
+            }
+        });
+        parser.addCommand("add", function (parser, runtime, tokens) {
+            if (tokens.matchToken("add")) {
+                var classRef = parser.parseElement("classRef", tokens);
+                var attributeRef = null;
+                var cssDeclaration = null;
+                if (classRef == null) {
+                    attributeRef = parser.parseElement("attributeRef", tokens);
+                    if (attributeRef == null) {
+                        cssDeclaration = parser.parseElement("styleLiteral", tokens);
+                        if (cssDeclaration == null) {
+                            parser.raiseParseError(tokens, "Expected either a class reference or attribute expression");
+                        }
+                    }
+                } else {
+                    var classRefs = [classRef];
+                    while ((classRef = parser.parseElement("classRef", tokens))) {
+                        classRefs.push(classRef);
+                    }
+                }
+                if (tokens.matchToken("to")) {
+                    var toExpr = parser.requireElement("expression", tokens);
+                } else {
+                    var toExpr = parser.requireElement("implicitMeTarget", tokens);
+                }
+                if (tokens.matchToken("when")) {
+                    if (cssDeclaration) {
+                        parser.raiseParseError(tokens, "Only class and properties are supported with a when clause")
+                    }
+                    var when = parser.requireElement("expression", tokens);
+                }
+                if (classRefs) {
+                    return {
+                        classRefs: classRefs,
+                        to: toExpr,
+                        args: [toExpr, classRefs],
+                        op: function (context, to, classRefs) {
+                            runtime.nullCheck(to, toExpr);
+                            runtime.forEach(classRefs, function (classRef) {
+                                runtime.implicitLoop(to, function (target) {
+                                    if (when) {
+                                        context.result = target;
+                                        let whenResult = runtime.evaluateNoPromise(when, context);
+                                        if (whenResult) {
+                                            if (target instanceof Element) target.classList.add(classRef.className);
+                                        } else {
+                                            if (target instanceof Element) target.classList.remove(classRef.className);
+                                        }
+                                        context.result = null;
+                                    } else {
+                                        if (target instanceof Element) target.classList.add(classRef.className);
+                                    }
+                                });
+                            });
+                            return runtime.findNext(this, context);
+                        },
+                    };
+                } else if (attributeRef) {
+                    return {
+                        type: "addCmd",
+                        attributeRef: attributeRef,
+                        to: toExpr,
+                        args: [toExpr],
+                        op: function (context, to, attrRef) {
+                            runtime.nullCheck(to, toExpr);
+                            runtime.implicitLoop(to, function (target) {
+                                if (when) {
+                                    context.result = target;
+                                    let whenResult = runtime.evaluateNoPromise(when, context);
+                                    if (whenResult) {
+                                        target.setAttribute(attributeRef.name, attributeRef.value);
+                                    } else {
+                                        target.removeAttribute(attributeRef.name);
+                                    }
+                                    context.result = null;
+                                } else {
+                                    target.setAttribute(attributeRef.name, attributeRef.value);
+                                }
+                            });
+                            return runtime.findNext(this, context);
+                        },
+                        execute: function (ctx) {
+                            return runtime.unifiedExec(this, ctx);
+                        },
+                    };
+                } else {
+                    return {
+                        type: "addCmd",
+                        cssDeclaration: cssDeclaration,
+                        to: toExpr,
+                        args: [toExpr, cssDeclaration],
+                        op: function (context, to, css) {
+                            runtime.nullCheck(to, toExpr);
+                            runtime.implicitLoop(to, function (target) {
+                                target.style.cssText += css;
+                            });
+                            return runtime.findNext(this, context);
+                        },
+                        execute: function (ctx) {
+                            return runtime.unifiedExec(this, ctx);
+                        },
+                    };
+                }
+            }
+        });
+        parser.addGrammarElement("styleLiteral", function (parser, runtime, tokens) {
+            if (!tokens.matchOpToken("{")) return;
+            var stringParts = [""]
+            var exprs = []
+            while (tokens.hasMore()) {
+                if (tokens.matchOpToken("\\")) {
+                    tokens.consumeToken();
+                } else if (tokens.matchOpToken("}")) {
+                    break;
+                } else if (tokens.matchToken("$")) {
+                    var opencurly = tokens.matchOpToken("{");
+                    var expr = parser.parseElement("expression", tokens);
+                    if (opencurly) tokens.requireOpToken("}");
+                    exprs.push(expr)
+                    stringParts.push("")
+                } else {
+                    var tok = tokens.consumeToken();
+                    stringParts[stringParts.length-1] += tokens.source.substring(tok.start, tok.end);
+                }
+                stringParts[stringParts.length-1] += tokens.lastWhitespace();
+            }
+            return {
+                type: "styleLiteral",
+                args: [exprs],
+                op: function (ctx, exprs) {
+                    var rv = "";
+                    stringParts.forEach(function (part, idx) {
+                        rv += part;
+                        if (idx in exprs) rv += exprs[idx];
+                    });
+                    return rv;
+                },
+                evaluate: function(ctx) {
+                    return runtime.unifiedEval(this, ctx);
+                }
+            }
+        })
+        parser.addCommand("remove", function (parser, runtime, tokens) {
+            if (tokens.matchToken("remove")) {
+                var classRef = parser.parseElement("classRef", tokens);
+                var attributeRef = null;
+                var elementExpr = null;
+                if (classRef == null) {
+                    attributeRef = parser.parseElement("attributeRef", tokens);
+                    if (attributeRef == null) {
+                        elementExpr = parser.parseElement("expression", tokens);
+                        if (elementExpr == null) {
+                            parser.raiseParseError(
+                                tokens,
+                                "Expected either a class reference, attribute expression or value expression"
+                            );
+                        }
+                    }
+                } else {
+                    var classRefs = [classRef];
+                    while ((classRef = parser.parseElement("classRef", tokens))) {
+                        classRefs.push(classRef);
+                    }
+                }
+                if (tokens.matchToken("from")) {
+                    var fromExpr = parser.requireElement("expression", tokens);
+                } else {
+                    if (elementExpr == null) {
+                        var fromExpr = parser.requireElement("implicitMeTarget", tokens);
+                    }
+                }
+                if (elementExpr) {
+                    return {
+                        elementExpr: elementExpr,
+                        from: fromExpr,
+                        args: [elementExpr, fromExpr],
+                        op: function (context, element, from) {
+                            runtime.nullCheck(element, elementExpr);
+                            runtime.implicitLoop(element, function (target) {
+                                if (target.parentElement && (from == null || from.contains(target))) {
+                                    target.parentElement.removeChild(target);
+                                }
+                            });
+                            return runtime.findNext(this, context);
+                        },
+                    };
+                } else {
+                    return {
+                        classRefs: classRefs,
+                        attributeRef: attributeRef,
+                        elementExpr: elementExpr,
+                        from: fromExpr,
+                        args: [classRefs, fromExpr],
+                        op: function (context, classRefs, from) {
+                            runtime.nullCheck(from, fromExpr);
+                            if (classRefs) {
+                                runtime.forEach(classRefs, function (classRef) {
+                                    runtime.implicitLoop(from, function (target) {
+                                        target.classList.remove(classRef.className);
+                                    });
+                                });
+                            } else {
+                                runtime.implicitLoop(from, function (target) {
+                                    target.removeAttribute(attributeRef.name);
+                                });
+                            }
+                            return runtime.findNext(this, context);
+                        },
+                    };
+                }
+            }
+        });
+        parser.addCommand("toggle", function (parser, runtime, tokens) {
+            if (tokens.matchToken("toggle")) {
+                tokens.matchAnyToken("the", "my");
+                if (tokens.currentToken().type === "STYLE_REF") {
+                    let styleRef = tokens.consumeToken();
+                    var name = styleRef.value.substr(1);
+                    var visibility = true;
+                    var hideShowStrategy = resolveStrategy(parser, tokens, name);
+                    if (tokens.matchToken("of")) {
+                        tokens.pushFollow("with");
+                        try {
+                            var onExpr = parser.requireElement("expression", tokens);
+                        } finally {
+                            tokens.popFollow();
+                        }
+                    } else {
+                        var onExpr = parser.requireElement("implicitMeTarget", tokens);
+                    }
+                } else if (tokens.matchToken("between")) {
+                    var between = true;
+                    var classRef = parser.parseElement("classRef", tokens);
+                    tokens.requireToken("and");
+                    var classRef2 = parser.requireElement("classRef", tokens);
+                } else {
+                    var classRef = parser.parseElement("classRef", tokens);
+                    var attributeRef = null;
+                    if (classRef == null) {
+                        attributeRef = parser.parseElement("attributeRef", tokens);
+                        if (attributeRef == null) {
+                            parser.raiseParseError(tokens, "Expected either a class reference or attribute expression");
+                        }
+                    } else {
+                        var classRefs = [classRef];
+                        while ((classRef = parser.parseElement("classRef", tokens))) {
+                            classRefs.push(classRef);
+                        }
+                    }
+                }
+                if (visibility !== true) {
+                    if (tokens.matchToken("on")) {
+                        var onExpr = parser.requireElement("expression", tokens);
+                    } else {
+                        var onExpr = parser.requireElement("implicitMeTarget", tokens);
+                    }
+                }
+                if (tokens.matchToken("for")) {
+                    var time = parser.requireElement("expression", tokens);
+                } else if (tokens.matchToken("until")) {
+                    var evt = parser.requireElement("dotOrColonPath", tokens, "Expected event name");
+                    if (tokens.matchToken("from")) {
+                        var from = parser.requireElement("expression", tokens);
+                    }
+                }
+                var toggleCmd = {
+                    classRef: classRef,
+                    classRef2: classRef2,
+                    classRefs: classRefs,
+                    attributeRef: attributeRef,
+                    on: onExpr,
+                    time: time,
+                    evt: evt,
+                    from: from,
+                    toggle: function (on, classRef, classRef2, classRefs) {
+                        runtime.nullCheck(on, onExpr);
+                        if (visibility) {
+                            runtime.implicitLoop(on, function (target) {
+                                hideShowStrategy("toggle", target);
+                            });
+                        } else if (between) {
+                            runtime.implicitLoop(on, function (target) {
+                                if (target.classList.contains(classRef.className)) {
+                                    target.classList.remove(classRef.className);
+                                    target.classList.add(classRef2.className);
+                                } else {
+                                    target.classList.add(classRef.className);
+                                    target.classList.remove(classRef2.className);
+                                }
+                            });
+                        } else if (classRefs) {
+                            runtime.forEach(classRefs, function (classRef) {
+                                runtime.implicitLoop(on, function (target) {
+                                    target.classList.toggle(classRef.className);
+                                });
+                            });
+                        } else {
+                            runtime.forEach(on, function (target) {
+                                if (target.hasAttribute(attributeRef.name)) {
+                                    target.removeAttribute(attributeRef.name);
+                                } else {
+                                    target.setAttribute(attributeRef.name, attributeRef.value);
+                                }
+                            });
+                        }
+                    },
+                    args: [onExpr, time, evt, from, classRef, classRef2, classRefs],
+                    op: function (context, on, time, evt, from, classRef, classRef2, classRefs) {
+                        if (time) {
+                            return new Promise(function (resolve) {
+                                toggleCmd.toggle(on, classRef, classRef2, classRefs);
+                                setTimeout(function () {
+                                    toggleCmd.toggle(on, classRef, classRef2, classRefs);
+                                    resolve(runtime.findNext(toggleCmd, context));
+                                }, time);
+                            });
+                        } else if (evt) {
+                            return new Promise(function (resolve) {
+                                var target = from || context.me;
+                                target.addEventListener(
+                                    evt,
+                                    function () {
+                                        toggleCmd.toggle(on, classRef, classRef2, classRefs);
+                                        resolve(runtime.findNext(toggleCmd, context));
+                                    },
+                                    { once: true }
+                                );
+                                toggleCmd.toggle(on, classRef, classRef2, classRefs);
+                            });
+                        } else {
+                            this.toggle(on, classRef, classRef2, classRefs);
+                            return runtime.findNext(toggleCmd, context);
+                        }
+                    },
+                };
+                return toggleCmd;
+            }
+        });
+        var HIDE_SHOW_STRATEGIES = {
+            display: function (op, element, arg) {
+                if (arg) {
+                    element.style.display = arg;
+                } else if (op === "toggle") {
+                    if (getComputedStyle(element).display === "none") {
+                        HIDE_SHOW_STRATEGIES.display("show", element, arg);
+                    } else {
+                        HIDE_SHOW_STRATEGIES.display("hide", element, arg);
+                    }
+                } else if (op === "hide") {
+                    const internalData = parser.runtime.getInternalData(element);
+                    if (internalData.originalDisplay == null) {
+                        internalData.originalDisplay = element.style.display;
+                    }
+                    element.style.display = "none";
+                } else {
+                    const internalData = parser.runtime.getInternalData(element);
+                    if (internalData.originalDisplay && internalData.originalDisplay !== 'none') {
+                        element.style.display = internalData.originalDisplay;
+                    } else {
+                        element.style.removeProperty('display');
+                    }
+                }
+            },
+            visibility: function (op, element, arg) {
+                if (arg) {
+                    element.style.visibility = arg;
+                } else if (op === "toggle") {
+                    if (getComputedStyle(element).visibility === "hidden") {
+                        HIDE_SHOW_STRATEGIES.visibility("show", element, arg);
+                    } else {
+                        HIDE_SHOW_STRATEGIES.visibility("hide", element, arg);
+                    }
+                } else if (op === "hide") {
+                    element.style.visibility = "hidden";
+                } else {
+                    element.style.visibility = "visible";
+                }
+            },
+            opacity: function (op, element, arg) {
+                if (arg) {
+                    element.style.opacity = arg;
+                } else if (op === "toggle") {
+                    if (getComputedStyle(element).opacity === "0") {
+                        HIDE_SHOW_STRATEGIES.opacity("show", element, arg);
+                    } else {
+                        HIDE_SHOW_STRATEGIES.opacity("hide", element, arg);
+                    }
+                } else if (op === "hide") {
+                    element.style.opacity = "0";
+                } else {
+                    element.style.opacity = "1";
+                }
+            },
+        };
+        var parseShowHideTarget = function (parser, runtime, tokens) {
+            var target;
+            var currentTokenValue = tokens.currentToken();
+            if (currentTokenValue.value === "when" || currentTokenValue.value === "with" || parser.commandBoundary(currentTokenValue)) {
+                target = parser.parseElement("implicitMeTarget", tokens);
+            } else {
+                target = parser.parseElement("expression", tokens);
+            }
+            return target;
+        };
+        var resolveStrategy = function (parser, tokens, name) {
+            var configDefault = config.defaultHideShowStrategy;
+            var strategies = HIDE_SHOW_STRATEGIES;
+            if (config.hideShowStrategies) {
+                strategies = Object.assign(strategies, config.hideShowStrategies); // merge in user provided strategies
+            }
+            name = name || configDefault || "display";
+            var value = strategies[name];
+            if (value == null) {
+                parser.raiseParseError(tokens, "Unknown show/hide strategy : " + name);
+            }
+            return value;
+        };
+        parser.addCommand("hide", function (parser, runtime, tokens) {
+            if (tokens.matchToken("hide")) {
+                var targetExpr = parseShowHideTarget(parser, runtime, tokens);
+                var name = null;
+                if (tokens.matchToken("with")) {
+                    name = tokens.requireTokenType("IDENTIFIER", "STYLE_REF").value;
+                    if (name.indexOf("*") === 0) {
+                        name = name.substr(1);
+                    }
+                }
+                var hideShowStrategy = resolveStrategy(parser, tokens, name);
+                return {
+                    target: targetExpr,
+                    args: [targetExpr],
+                    op: function (ctx, target) {
+                        runtime.nullCheck(target, targetExpr);
+                        runtime.implicitLoop(target, function (elt) {
+                            hideShowStrategy("hide", elt);
+                        });
+                        return runtime.findNext(this, ctx);
+                    },
+                };
+            }
+        });
+        parser.addCommand("show", function (parser, runtime, tokens) {
+            if (tokens.matchToken("show")) {
+                var targetExpr = parseShowHideTarget(parser, runtime, tokens);
+                var name = null;
+                if (tokens.matchToken("with")) {
+                    name = tokens.requireTokenType("IDENTIFIER", "STYLE_REF").value;
+                    if (name.indexOf("*") === 0) {
+                        name = name.substr(1);
+                    }
+                }
+                var arg = null;
+                if (tokens.matchOpToken(":")) {
+                    var tokenArr = tokens.consumeUntilWhitespace();
+                    tokens.matchTokenType("WHITESPACE");
+                    arg = tokenArr
+                        .map(function (t) {
+                            return t.value;
+                        })
+                        .join("");
+                }
+                if (tokens.matchToken("when")) {
+                    var when = parser.requireElement("expression", tokens);
+                }
+                var hideShowStrategy = resolveStrategy(parser, tokens, name);
+                return {
+                    target: targetExpr,
+                    when: when,
+                    args: [targetExpr],
+                    op: function (ctx, target) {
+                        runtime.nullCheck(target, targetExpr);
+                        runtime.implicitLoop(target, function (elt) {
+                            if (when) {
+                                ctx.result = elt;
+                                let whenResult = runtime.evaluateNoPromise(when, ctx);
+                                if (whenResult) {
+                                    hideShowStrategy("show", elt, arg);
+                                } else {
+                                    hideShowStrategy("hide", elt);
+                                }
+                                ctx.result = null;
+                            } else {
+                                hideShowStrategy("show", elt, arg);
+                            }
+                        });
+                        return runtime.findNext(this, ctx);
+                    },
+                };
+            }
+        });
+        parser.addCommand("take", function (parser, runtime, tokens) {
+            if (tokens.matchToken("take")) {
+                var classRef = parser.requireElement("classRef", tokens);
+                if (tokens.matchToken("from")) {
+                    var fromExpr = parser.requireElement("expression", tokens);
+                } else {
+                    var fromExpr = classRef;
+                }
+                if (tokens.matchToken("for")) {
+                    var forExpr = parser.requireElement("expression", tokens);
+                } else {
+                    var forExpr = parser.requireElement("implicitMeTarget", tokens);
+                }
+                var takeCmd = {
+                    classRef: classRef,
+                    from: fromExpr,
+                    forElt: forExpr,
+                    args: [classRef, fromExpr, forExpr],
+                    op: function (context, eltColl, from, forElt) {
+                        runtime.nullCheck(from, fromExpr);
+                        runtime.nullCheck(forElt, forExpr);
+                        var clazz = eltColl.className;
+                        runtime.implicitLoop(from, function (target) {
+                            target.classList.remove(clazz);
+                        });
+                        runtime.implicitLoop(forElt, function (target) {
+                            target.classList.add(clazz);
+                        });
+                        return runtime.findNext(this, context);
+                    },
+                };
+                return takeCmd;
+            }
+        });
+        function putInto(runtime, context, prop, valueToPut) {
+            if (prop != null) {
+                var value = runtime.resolveSymbol(prop, context);
+            } else {
+                var value = context;
+            }
+            if (value instanceof Element || value instanceof HTMLDocument) {
+                while (value.firstChild) value.removeChild(value.firstChild);
+                value.append(parser.runtime.convertValue(valueToPut, "Fragment"));
+                runtime.processNode(value);
+            } else {
+                if (prop != null) {
+                    runtime.setSymbol(prop, context, null, valueToPut);
+                } else {
+                    throw "Don't know how to put a value into " + typeof context;
+                }
+            }
+        }
+        parser.addCommand("put", function (parser, runtime, tokens) {
+            if (tokens.matchToken("put")) {
+                var value = parser.requireElement("expression", tokens);
+                var operationToken = tokens.matchAnyToken("into", "before", "after");
+                if (operationToken == null && tokens.matchToken("at")) {
+                    tokens.matchToken("the"); // optional "the"
+                    operationToken = tokens.matchAnyToken("start", "end");
+                    tokens.requireToken("of");
+                }
+                if (operationToken == null) {
+                    parser.raiseParseError(tokens, "Expected one of 'into', 'before', 'at start of', 'at end of', 'after'");
+                }
+                var target = parser.requireElement("expression", tokens);
+                var operation = operationToken.value;
+                var arrayIndex = false;
+                var symbolWrite = false;
+                var rootExpr = null;
+                var prop = null;
+                if (target.type === "arrayIndex" && operation === "into") {
+                    arrayIndex = true;
+                    prop = target.prop;
+                    rootExpr = target.root;
+                }  else if (target.prop && target.root && operation === "into") {
+                    prop = target.prop.value;
+                    rootExpr = target.root;
+                } else if (target.type === "symbol" && operation === "into") {
+                    symbolWrite = true;
+                    prop = target.name;
+                } else if (target.type === "attributeRef" && operation === "into") {
+                    var attributeWrite = true;
+                    prop = target.name;
+                    rootExpr = parser.requireElement("implicitMeTarget", tokens);
+                } else if (target.type === "styleRef" && operation === "into") {
+                    var styleWrite = true;
+                    prop = target.name;
+                    rootExpr = parser.requireElement("implicitMeTarget", tokens);
+                } else if (target.attribute && operation === "into") {
+                    var attributeWrite = target.attribute.type === "attributeRef";
+                    var styleWrite = target.attribute.type === "styleRef";
+                    prop = target.attribute.name;
+                    rootExpr = target.root;
+                } else {
+                    rootExpr = target;
+                }
+                var putCmd = {
+                    target: target,
+                    operation: operation,
+                    symbolWrite: symbolWrite,
+                    value: value,
+                    args: [rootExpr, prop, value],
+                    op: function (context, root, prop, valueToPut) {
+                        if (symbolWrite) {
+                            putInto(runtime, context, prop, valueToPut);
+                        } else {
+                            runtime.nullCheck(root, rootExpr);
+                            if (operation === "into") {
+                                if (attributeWrite) {
+                                    runtime.implicitLoop(root, function (elt) {
+                                        elt.setAttribute(prop, valueToPut);
+                                    });
+                                } else if (styleWrite) {
+                                    runtime.implicitLoop(root, function (elt) {
+                                        elt.style[prop] = valueToPut;
+                                    });
+                                } else if (arrayIndex) {
+                                    root[prop] = valueToPut;
+                                } else {
+                                    runtime.implicitLoop(root, function (elt) {
+                                        putInto(runtime, elt, prop, valueToPut);
+                                    });
+                                }
+                            } else {
+                                var op =
+                                    operation === "before"
+                                        ? Element.prototype.before
+                                        : operation === "after"
+                                        ? Element.prototype.after
+                                        : operation === "start"
+                                        ? Element.prototype.prepend
+                                        : operation === "end"
+                                        ? Element.prototype.append
+                                        : Element.prototype.append; // unreachable
+                                runtime.implicitLoop(root, function (elt) {
+                                    op.call(
+                                        elt,
+                                        valueToPut instanceof Node
+                                            ? valueToPut
+                                            : runtime.convertValue(valueToPut, "Fragment")
+                                    );
+                                    // process any new content
+                                    if (elt.parentElement) {
+                                        runtime.processNode(elt.parentElement);
+                                    } else {
+                                        runtime.processNode(elt);
+                                    }
+                                });
+                            }
+                        }
+                        return runtime.findNext(this, context);
+                    },
+                };
+                return putCmd;
+            }
+        });
+        function parsePseudopossessiveTarget(parser, runtime, tokens) {
+            var targets;
+            if (
+                tokens.matchToken("the") ||
+                tokens.matchToken("element") ||
+                tokens.matchToken("elements") ||
+                tokens.currentToken().type === "CLASS_REF" ||
+                tokens.currentToken().type === "ID_REF" ||
+                (tokens.currentToken().op && tokens.currentToken().value === "<")
+            ) {
+                parser.possessivesDisabled = true;
+                try {
+                    targets = parser.parseElement("expression", tokens);
+                } finally {
+                    delete parser.possessivesDisabled;
+                }
+                // optional possessive
+                if (tokens.matchOpToken("'")) {
+                    tokens.requireToken("s");
+                }
+            } else if (tokens.currentToken().type === "IDENTIFIER" && tokens.currentToken().value === "its") {
+                var identifier = tokens.matchToken("its");
+                targets = {
+                    type: "pseudopossessiveIts",
+                    token: identifier,
+                    name: identifier.value,
+                    evaluate: function (context) {
+                        return runtime.resolveSymbol("it", context);
+                    },
+                };
+            } else {
+                tokens.matchToken("my") || tokens.matchToken("me"); // consume optional 'my'
+                targets = parser.parseElement("implicitMeTarget", tokens);
+            }
+            return targets;
+        }
+        parser.addCommand("transition", function (parser, runtime, tokens) {
+            if (tokens.matchToken("transition")) {
+                var targetsExpr = parsePseudopossessiveTarget(parser, runtime, tokens);
+                var properties = [];
+                var from = [];
+                var to = [];
+                var currentToken = tokens.currentToken();
+                while (
+                    !parser.commandBoundary(currentToken) &&
+                    currentToken.value !== "over" &&
+                    currentToken.value !== "using"
+                ) {
+                    if (tokens.currentToken().type === "STYLE_REF") {
+                        let styleRef = tokens.consumeToken();
+                        let styleProp = styleRef.value.substr(1);
+                        properties.push({
+                            type: "styleRefValue",
+                            evaluate: function () {
+                                return styleProp;
+                            },
+                        });
+                    } else {
+                        properties.push(parser.requireElement("stringLike", tokens));
+                    }
+                    if (tokens.matchToken("from")) {
+                        from.push(parser.requireElement("expression", tokens));
+                    } else {
+                        from.push(null);
+                    }
+                    tokens.requireToken("to");
+                    if (tokens.matchToken("initial")) {
+                        to.push({
+                            type: "initial_literal",
+                            evaluate : function(){
+                                return "initial";
+                            }
+                        });
+                    } else {
+                        to.push(parser.requireElement("expression", tokens));
+                    }
+                    currentToken = tokens.currentToken();
+                }
+                if (tokens.matchToken("over")) {
+                    var over = parser.requireElement("expression", tokens);
+                } else if (tokens.matchToken("using")) {
+                    var using = parser.requireElement("expression", tokens);
+                }
+                var transition = {
+                    to: to,
+                    args: [targetsExpr, properties, from, to, using, over],
+                    op: function (context, targets, properties, from, to, using, over) {
+                        runtime.nullCheck(targets, targetsExpr);
+                        var promises = [];
+                        runtime.implicitLoop(targets, function (target) {
+                            var promise = new Promise(function (resolve, reject) {
+                                var initialTransition = target.style.transition;
+                                if (over) {
+                                    target.style.transition = "all " + over + "ms ease-in";
+                                } else if (using) {
+                                    target.style.transition = using;
+                                } else {
+                                    target.style.transition = config.defaultTransition;
+                                }
+                                var internalData = runtime.getInternalData(target);
+                                var computedStyles = getComputedStyle(target);
+                                var initialStyles = {};
+                                for (var i = 0; i < computedStyles.length; i++) {
+                                    var name = computedStyles[i];
+                                    var initialValue = computedStyles[name];
+                                    initialStyles[name] = initialValue;
+                                }
+                                // store intitial values
+                                if (!internalData.initalStyles) {
+                                    internalData.initalStyles = initialStyles;
+                                }
+                                for (var i = 0; i < properties.length; i++) {
+                                    var property = properties[i];
+                                    var fromVal = from[i];
+                                    if (fromVal === "computed" || fromVal == null) {
+                                        target.style[property] = initialStyles[property];
+                                    } else {
+                                        target.style[property] = fromVal;
+                                    }
+                                }
+                                //console.log("transition started", transition);
+                                var transitionStarted = false;
+                                var resolved = false;
+                                target.addEventListener(
+                                    "transitionend",
+                                    function () {
+                                        if (!resolved) {
+                                            //console.log("transition ended", transition);
+                                            target.style.transition = initialTransition;
+                                            resolved = true;
+                                            resolve();
+                                        }
+                                    },
+                                    { once: true }
+                                );
+                                target.addEventListener(
+                                    "transitionstart",
+                                    function () {
+                                        transitionStarted = true;
+                                    },
+                                    { once: true }
+                                );
+                                // it no transition has started in 100ms, continue
+                                setTimeout(function () {
+                                    if (!resolved && !transitionStarted) {
+                                        //console.log("transition ended", transition);
+                                        target.style.transition = initialTransition;
+                                        resolved = true;
+                                        resolve();
+                                    }
+                                }, 100);
+                                setTimeout(function () {
+                                    var autoProps = [];
+                                    for (var i = 0; i < properties.length; i++) {
+                                        var property = properties[i];
+                                        var toVal = to[i];
+                                        if (toVal === "initial") {
+                                            var propertyValue = internalData.initalStyles[property];
+                                            target.style[property] = propertyValue;
+                                        } else {
+                                            target.style[property] = toVal;
+                                        }
+                                        //console.log("set", property, "to", target.style[property], "on", target, "value passed in : ", toVal);
+                                    }
+                                }, 0);
+                            });
+                            promises.push(promise);
+                        });
+                        return Promise.all(promises).then(function () {
+                            return runtime.findNext(transition, context);
+                        });
+                    },
+                };
+                return transition;
+            }
+        });
+        parser.addCommand("measure", function (parser, runtime, tokens) {
+            if (!tokens.matchToken("measure")) return;
+            var targetExpr = parsePseudopossessiveTarget(parser, runtime, tokens);
+            var propsToMeasure = [];
+            if (!parser.commandBoundary(tokens.currentToken()))
+                do {
+                    propsToMeasure.push(tokens.matchTokenType("IDENTIFIER").value);
+                } while (tokens.matchOpToken(","));
+            return {
+                properties: propsToMeasure,
+                args: [targetExpr],
+                op: function (ctx, target) {
+                    runtime.nullCheck(target, targetExpr);
+                    if (0 in target) target = target[0]; // not measuring multiple elts
+                    var rect = target.getBoundingClientRect();
+                    var scroll = {
+                        top: target.scrollTop,
+                        left: target.scrollLeft,
+                        topMax: target.scrollTopMax,
+                        leftMax: target.scrollLeftMax,
+                        height: target.scrollHeight,
+                        width: target.scrollWidth,
+                    };
+                    ctx.result = {
+                        x: rect.x,
+                        y: rect.y,
+                        left: rect.left,
+                        top: rect.top,
+                        right: rect.right,
+                        bottom: rect.bottom,
+                        width: rect.width,
+                        height: rect.height,
+                        bounds: rect,
+                        scrollLeft: scroll.left,
+                        scrollTop: scroll.top,
+                        scrollLeftMax: scroll.leftMax,
+                        scrollTopMax: scroll.topMax,
+                        scrollWidth: scroll.width,
+                        scrollHeight: scroll.height,
+                        scroll: scroll,
+                    };
+                    runtime.forEach(propsToMeasure, function (prop) {
+                        if (prop in ctx.result) ctx.locals[prop] = ctx.result[prop];
+                        else throw "No such measurement as " + prop;
+                    });
+                    return runtime.findNext(this, ctx);
+                },
+            };
+        });
+        parser.addLeafExpression("closestExpr", function (parser, runtime, tokens) {
+            if (tokens.matchToken("closest")) {
+                if (tokens.matchToken("parent")) {
+                    var parentSearch = true;
+                }
+                var css = null;
+                if (tokens.currentToken().type === "ATTRIBUTE_REF") {
+                    var attributeRef = parser.requireElement("attributeRefAccess", tokens, null);
+                    css = "[" + attributeRef.attribute.name + "]";
+                }
+                if (css == null) {
+                    var expr = parser.requireElement("expression", tokens);
+                    if (expr.css == null) {
+                        parser.raiseParseError(tokens, "Expected a CSS expression");
+                    } else {
+                        css = expr.css;
+                    }
+                }
+                if (tokens.matchToken("to")) {
+                    var to = parser.parseElement("expression", tokens);
+                } else {
+                    var to = parser.parseElement("implicitMeTarget", tokens);
+                }
+                var closestExpr = {
+                    type: "closestExpr",
+                    parentSearch: parentSearch,
+                    expr: expr,
+                    css: css,
+                    to: to,
+                    args: [to],
+                    op: function (ctx, to) {
+                        if (to == null) {
+                            return null;
+                        } else {
+                            let result = [];
+                            runtime.implicitLoop(to, function(to){
+                                if (parentSearch) {
+                                    result.push(to.parentElement ? to.parentElement.closest(css) : null);
+                                } else {
+                                    result.push(to.closest(css));
+                                }
+                            })
+                            if (runtime.shouldAutoIterate(to)) {
+                                return result;
+                            } else {
+                                return result[0];
+                            }
+                        }
+                    },
+                    evaluate: function (context) {
+                        return runtime.unifiedEval(this, context);
+                    },
+                };
+                if (attributeRef) {
+                    attributeRef.root = closestExpr;
+                    attributeRef.args = [closestExpr];
+                    return attributeRef;
+                } else {
+                    return closestExpr;
+                }
+            }
+        });
+        parser.addCommand("go", function (parser, runtime, tokens) {
+            if (tokens.matchToken("go")) {
+                if (tokens.matchToken("back")) {
+                    var back = true;
+                } else {
+                    tokens.matchToken("to");
+                    if (tokens.matchToken("url")) {
+                        var target = parser.requireElement("stringLike", tokens);
+                        var url = true;
+                        if (tokens.matchToken("in")) {
+                            tokens.requireToken("new");
+                            tokens.requireToken("window");
+                            var newWindow = true;
+                        }
+                    } else {
+                        tokens.matchToken("the"); // optional the
+                        var verticalPosition = tokens.matchAnyToken("top", "middle", "bottom");
+                        var horizontalPosition = tokens.matchAnyToken("left", "center", "right");
+                        if (verticalPosition || horizontalPosition) {
+                            tokens.requireToken("of");
+                        }
+                        var target = parser.requireElement("unaryExpression", tokens);
+                        var plusOrMinus = tokens.matchAnyOpToken("+", "-");
+                        if (plusOrMinus) {
+                            tokens.pushFollow("px");
+                            try {
+                                var offset = parser.requireElement("expression", tokens);
+                            } finally {
+                                tokens.popFollow();
+                            }
+                        }
+                        tokens.matchToken("px"); // optional px
+                        var smoothness = tokens.matchAnyToken("smoothly", "instantly");
+                        var scrollOptions = {};
+                        if (verticalPosition) {
+                            if (verticalPosition.value === "top") {
+                                scrollOptions.block = "start";
+                            } else if (verticalPosition.value === "bottom") {
+                                scrollOptions.block = "end";
+                            } else if (verticalPosition.value === "middle") {
+                                scrollOptions.block = "center";
+                            }
+                        }
+                        if (horizontalPosition) {
+                            if (horizontalPosition.value === "left") {
+                                scrollOptions.inline = "start";
+                            } else if (horizontalPosition.value === "center") {
+                                scrollOptions.inline = "center";
+                            } else if (horizontalPosition.value === "right") {
+                                scrollOptions.inline = "end";
+                            }
+                        }
+                        if (smoothness) {
+                            if (smoothness.value === "smoothly") {
+                                scrollOptions.behavior = "smooth";
+                            } else if (smoothness.value === "instantly") {
+                                scrollOptions.behavior = "instant";
+                            }
+                        }
+                    }
+                }
+                var goCmd = {
+                    target: target,
+                    args: [target, offset],
+                    op: function (ctx, to, offset) {
+                        if (back) {
+                            window.history.back();
+                        } else if (url) {
+                            if (to) {
+                                if (newWindow) {
+                                    window.open(to);
+                                } else {
+                                    window.location.href = to;
+                                }
+                            }
+                        } else {
+                            runtime.implicitLoop(to, function (target) {
+                                if (target === window) {
+                                    target = document.body;
+                                }
+                                if(plusOrMinus) {
+                                    // a top scroll w/ an offset of some sort
+                                    var boundingRect = target.getBoundingClientRect();
+                                    let scrollShim = document.createElement('div');
+                                    if (plusOrMinus.value === "-") {
+                                        var finalOffset = -offset;
+                                    } else {
+                                        var finalOffset = - -offset;
+                                    }
+                                    scrollShim.style.position = 'absolute';
+                                    scrollShim.style.top = (boundingRect.x + finalOffset) + "px";
+                                    scrollShim.style.left = (boundingRect.y + finalOffset) + "px";
+                                    scrollShim.style.height = (boundingRect.height + (2 * finalOffset)) + "px";
+                                    scrollShim.style.width = (boundingRect.width + (2 * finalOffset)) + "px";
+                                    scrollShim.style.zIndex = "" + Number.MIN_SAFE_INTEGER;
+                                    scrollShim.style.opacity = "0";
+                                    document.body.appendChild(scrollShim);
+                                    setTimeout(function () {
+                                        document.body.removeChild(scrollShim);
+                                    }, 100);
+                                    target = scrollShim;
+                                }
+                                target.scrollIntoView(scrollOptions);
+                            });
+                        }
+                        return runtime.findNext(goCmd, ctx);
+                    },
+                };
+                return goCmd;
+            }
+        });
+        config.conversions.dynamicResolvers.push(function (str, node) {
+            if (!(str === "Values" || str.indexOf("Values:") === 0)) {
+                return;
+            }
+            var conversion = str.split(":")[1];
+            /** @type Object<string,string | string[]> */
+            var result = {};
+            var implicitLoop = parser.runtime.implicitLoop.bind(parser.runtime);
+            implicitLoop(node, function (/** @type HTMLInputElement */ node) {
+                // Try to get a value directly from this node
+                var input = getInputInfo(node);
+                if (input !== undefined) {
+                    result[input.name] = input.value;
+                    return;
+                }
+                // Otherwise, try to query all child elements of this node that *should* contain values.
+                if (node.querySelectorAll != undefined) {
+                    /** @type {NodeListOf<HTMLInputElement>} */
+                    var children = node.querySelectorAll("input,select,textarea");
+                    children.forEach(appendValue);
+                }
+            });
+            if (conversion) {
+                if (conversion === "JSON") {
+                    return JSON.stringify(result);
+                } else if (conversion === "Form") {
+                    /** @ts-ignore */
+                    // TODO: does this work with multiple inputs of the same name?
+                    return new URLSearchParams(result).toString();
+                } else {
+                    throw "Unknown conversion: " + conversion;
+                }
+            } else {
+                return result;
+            }
+            /**
+             * @param {HTMLInputElement} node
+             */
+            function appendValue(node) {
+                var info = getInputInfo(node);
+                if (info == undefined) {
+                    return;
+                }
+                // If there is no value already stored in this space.
+                if (result[info.name] == undefined) {
+                    result[info.name] = info.value;
+                    return;
+                }
+                if (Array.isArray(result[info.name]) && Array.isArray(info.value)) {
+                    result[info.name] = [].concat(result[info.name], info.value);
+                    return;
+                }
+            }
+            /**
+             * @param {HTMLInputElement} node
+             * @returns {{name:string, value:string | string[]} | undefined}
+             */
+            function getInputInfo(node) {
+                try {
+                    /** @type {{name: string, value: string | string[]}}*/
+                    var result = {
+                        name: node.name,
+                        value: node.value,
+                    };
+                    if (result.name == undefined || result.value == undefined) {
+                        return undefined;
+                    }
+                    if (node.type == "radio" && node.checked == false) {
+                        return undefined;
+                    }
+                    if (node.type == "checkbox") {
+                        if (node.checked == false) {
+                            result.value = undefined;
+                        } else if (typeof result.value === "string") {
+                            result.value = [result.value];
+                        }
+                    }
+                    if (node.type == "select-multiple") {
+                        /** @type {NodeListOf<HTMLSelectElement>} */
+                        var selected = node.querySelectorAll("option[selected]");
+                        result.value = [];
+                        for (var index = 0; index < selected.length; index++) {
+                            result.value.push(selected[index].value);
+                        }
+                    }
+                    return result;
+                } catch (e) {
+                    return undefined;
+                }
+            }
+        });
+        config.conversions["HTML"] = function (value) {
+            var toHTML = /** @returns {string}*/ function (/** @type any*/ value) {
+                if (value instanceof Array) {
+                    return value
+                        .map(function (item) {
+                            return toHTML(item);
+                        })
+                        .join("");
+                }
+                if (value instanceof HTMLElement) {
+                    return value.outerHTML;
+                }
+                if (value instanceof NodeList) {
+                    var result = "";
+                    for (var i = 0; i < value.length; i++) {
+                        var node = value[i];
+                        if (node instanceof HTMLElement) {
+                            result += node.outerHTML;
+                        }
+                    }
+                    return result;
+                }
+                if (value.toString) {
+                    return value.toString();
+                }
+                return "";
+            };
+            return toHTML(value);
+        };
+        config.conversions["Fragment"] = function (val) {
+            var frag = document.createDocumentFragment();
+            parser.runtime.implicitLoop(val, function (val) {
+                if (val instanceof Node) frag.append(val);
+                else {
+                    var temp = document.createElement("template");
+                    temp.innerHTML = val;
+                    frag.append(temp.content);
+                }
+            });
+            return frag;
+        };
+    }
+    // Public API
+    const runtime_ = new Runtime(), lexer_ = runtime_.lexer, parser_ = runtime_.parser
+    /**
+     *
+     * @param {string} src
+     * @param {Partial<Context>} [ctx]
+     */
+    function run(src, ctx) {
+        return runtime_.evaluate(src, ctx)
+    }
+    function browserInit() {
+        /** @type {HTMLScriptElement[]} */
+        var scripts = Array.from(globalScope.document.querySelectorAll("script[type='text/hyperscript'][src]"))
+        Promise.all(
+			scripts.map(function (script) {
+				return fetch(script.src)
+					.then(function (res) {
+						return res.text();
+					});
+			})
+		)
+		.then(script_values => script_values.forEach(sc => _hyperscript(sc)))
+		.then(() => ready(function () {
+            mergeMetaConfig();
+            runtime_.processNode(document.documentElement);
+            globalScope.document.addEventListener("htmx:load", function (/** @type {CustomEvent} */ evt) {
+                runtime_.processNode(evt.detail.elt);
+            });
+        }));
+        function ready(fn) {
+            if (document.readyState !== "loading") {
+                setTimeout(fn);
+            } else {
+                document.addEventListener("DOMContentLoaded", fn);
+            }
+        }
+        function getMetaConfig() {
+            /** @type {HTMLMetaElement} */
+            var element = document.querySelector('meta[name="htmx-config"]');
+            if (element) {
+                return parseJSON(element.content);
+            } else {
+                return null;
+            }
+        }
+        function mergeMetaConfig() {
+            var metaConfig = getMetaConfig();
+            if (metaConfig) {
+                Object.assign(config, metaConfig);
+            }
+        }
+    }
+    /**
+     * @typedef {Object} HyperscriptAPI
+     *
+     * @property {Object} config
+     * @property {string} config.attributes
+     * @property {string} config.defaultTransition
+     * @property {string} config.disableSelector
+     * @property {typeof conversions} config.conversions
+     *
+     * @property {Object} internals
+     * @property {Lexer} internals.lexer
+     * @property {typeof Lexer} internals.Lexer
+     * @property {Parser} internals.parser
+     * @property {typeof Parser} internals.Parser
+     * @property {Runtime} internals.runtime
+     * @property {typeof Runtime} internals.Runtime
+     *
+     * @property {typeof ElementCollection} ElementCollection
+     *
+     * @property {(keyword: string, definition: ParseRule) => void} addFeature
+     * @property {(keyword: string, definition: ParseRule) => void} addCommand
+     * @property {(keyword: string, definition: ParseRule) => void} addLeafExpression
+     * @property {(keyword: string, definition: ParseRule) => void} addIndirectExpression
+     *
+     * @property {(src: string, ctx?: Partial<Context>) => any} evaluate
+     * @property {(src: string) => ASTNode} parse
+     * @property {(node: Element) => void} processNode
+     *
+     * @property {() => void} browserInit
+     *
+     *
+     * @typedef {HyperscriptAPI & ((src: string, ctx?: Partial<Context>) => any)} Hyperscript
+     */
+    /**
+     * @type {Hyperscript}
+     */
+    const _hyperscript = Object.assign(
+        run,
+        {
+            config,
+            use(plugin) { plugin(_hyperscript) },
+            internals: {
+                lexer: lexer_, parser: parser_, runtime: runtime_,
+                Lexer, Tokens, Parser, Runtime,
+            },
+            ElementCollection,
+            addFeature:            parser_.addFeature.bind(parser_),
+            addCommand:            parser_.addCommand.bind(parser_),
+            addLeafExpression:     parser_.addLeafExpression.bind(parser_),
+            addIndirectExpression: parser_.addIndirectExpression.bind(parser_),
+            evaluate:    runtime_.evaluate.bind(runtime_),
+            parse:       runtime_.parse.bind(runtime_),
+            processNode: runtime_.processNode.bind(runtime_),
+            browserInit,
+        }
+    )
+    return _hyperscript
+})

http.go CHANGED Viewed

@@ -338,6 +338,7 @@ func Handle(router *mux.Router, method, route string, h interface{}, meta, style
 		c.Link("stylesheet", GetComponentsStylesUrl(), "", "")
 		c.Link("icon", "/assets/favicon.ico", "image/x-icon", "image")
 		c.Script("/gromer/js/htmx@1.7.0.js", false)
+		c.Script("/gromer/js/hyperscript@0.9.6.js", false)
 		// c.Script("/gromer/js/alpinejs@3.9.6.js", true)
 		c.Meta(meta)
 		PerformRequest(route, h, c, w, r)

~repos /gromer

git clone https://pyrossh.dev/repos/gromer.git

gromer is a framework and cli to build multipage web apps in golang using htmx and alpinejs.