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import Prism from "prismjs";

// Hand-written Prism grammar for the plum language (github.com/pyrossh/plum),
// kept in sync with its tree-sitter grammar (tooling/tree-sitter-plum/grammar.js)
// and highlight query (tooling/tree-sitter-plum/queries/plum/highlights.scm) —
// there's no off-the-shelf Prism component for it, and this build only ever
// highlights at build time via Prism (see highlightCode.js), so a tree-sitter
// runtime isn't pulled in just for this one language.
Prism.languages.plum = {
  comment: /#.*/,
  string: {
    pattern: /"(?:\\.|\{[^{}]*\}|[^"\\{])*"/,
    greedy: true,
    inside: {
      interpolation: {
        pattern: /\{[^{}]*\}/,
        inside: {
          punctuation: /^\{|\}$/,
          rest: null,
        },
      },
      "escape-sequence": {
        pattern: /\\(?:u[0-9a-fA-F]{4}|U[0-9a-fA-F]{8}|x[0-9a-fA-F]{2}|[0-2][0-7]{0,2}|3[0-6][0-7]?|37[0-7]?|[4-7][0-7]?|N\{[^}]+\}|.|$)/,
        alias: "constant",
      },
    },
  },
  "raw-string": {
    pattern: /`[^`]*`/,
    greedy: true,
    alias: "string",
  },
  keyword:
    /\b(?:module|import|type|enum|trait|extern|fun|test|for|while|range|if|else if|else|when|match|break|continue|return|assert|todo)\b/,
  builtin: /\bself\b|\B_\b/,
  function: /\b[a-z][a-zA-Z0-9]*(?:_[a-zA-Z0-9]+)*(?=\()/,
  constant: /\b[A-Z][A-Z0-9]*(?:_[A-Z0-9]+)*\b/,
  "class-name": /\b[A-Z][a-zA-Z0-9]+\b/,
  number:
    /\b(?:0[xX][0-9a-fA-F](?:_?[0-9a-fA-F])*|0[bB][01](?:_?[01])*|[0-9][0-9_]*\.[0-9][0-9_]*(?:[eE][+-]?[0-9_]+)?[fF]?|[0-9][0-9_]*[eE][+-]?[0-9_]+[fF]?|[0-9][0-9_]*[fF]|[0-9][0-9_]*)\b/,
  operator: /\.\.\.|<<|>>|<=|>=|==|!=|<>|&&|\|\||:=|->|=>|[-+*/%^&|<>=!]/,
  punctuation: /[(){}\[\].,:|]/,
};

Prism.languages.plum.string.inside.interpolation.inside.rest = Prism.languages.plum;