refractor/lang/fsharp.js

Lightweight, robust, elegant virtual syntax highlighting using Prism

'use strict';

module.exports = fsharp;
fsharp.displayName = 'fsharp';
fsharp.aliases = [];
function fsharp(Prism) {
  Prism.languages.fsharp = Prism.languages.extend('clike', {
    comment: [
      {
        pattern: /(^|[^\\])\(\*[\s\S]*?\*\)/,
        lookbehind: true
      },
      {
        pattern: /(^|[^\\:])\/\/.*/,
        lookbehind: true
      }
    ],
    keyword: /\b(?:let|return|use|yield)(?:!\B|\b)|\b(abstract|and|as|assert|base|begin|class|default|delegate|do|done|downcast|downto|elif|else|end|exception|extern|false|finally|for|fun|function|global|if|in|inherit|inline|interface|internal|lazy|match|member|module|mutable|namespace|new|not|null|of|open|or|override|private|public|rec|select|static|struct|then|to|true|try|type|upcast|val|void|when|while|with|asr|land|lor|lsl|lsr|lxor|mod|sig|atomic|break|checked|component|const|constraint|constructor|continue|eager|event|external|fixed|functor|include|method|mixin|object|parallel|process|protected|pure|sealed|tailcall|trait|virtual|volatile)\b/,
    string: {
      pattern: /(?:"""[\s\S]*?"""|@"(?:""|[^"])*"|("|')(?:\\[\s\S]|(?!\1)[^\\])*\1)B?/,
      greedy: true
    },
    number: [
      /\b-?0x[\da-fA-F]+(?:un|lf|LF)?\b/,
      /\b-?0b[01]+(?:y|uy)?\b/,
      /\b-?(?:\d*\.?\d+|\d+\.)(?:[fFmM]|[eE][+-]?\d+)?\b/,
      /\b-?\d+(?:y|uy|s|us|l|u|ul|L|UL|I)?\b/
    ]
  });
  Prism.languages.insertBefore('fsharp', 'keyword', {
    preprocessor: {
      pattern: /^[^\r\n\S]*#.*/m,
      alias: 'property',
      inside: {
        directive: {
          pattern: /(\s*#)\b(?:else|endif|if|light|line|nowarn)\b/,
          lookbehind: true,
          alias: 'keyword'
        }
      }
    }
  });
}