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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;