reprism/src/languages/haxe.js

Modular Syntax highlighting for the web

export default {
  language: 'haxe',
  init: Prism => {
    Prism.languages.haxe = Prism.languages.extend('clike', {
      // Strings can be multi-line
      string: {
        pattern: /(["'])(?:(?!\1)[^\\]|\\[\s\S])*\1/,
        greedy: true,
        inside: {
          interpolation: {
            pattern: /(^|[^\\])\$(?:\w+|\{[^}]+\})/,
            lookbehind: true,
            inside: {
              interpolation: {
                pattern: /^\$\w*/,
                alias: 'variable',
              },
              // See rest below
            },
          },
        },
      },
      // The final look-ahead prevents highlighting of keywords if expressions such as "haxe.macro.Expr"
      keyword: /\bthis\b|\b(?:abstract|as|break|case|cast|catch|class|continue|default|do|dynamic|else|enum|extends|extern|from|for|function|if|implements|import|in|inline|interface|macro|new|null|override|public|private|return|static|super|switch|throw|to|try|typedef|using|var|while)(?!\.)\b/,
      operator: /\.{3}|\+\+?|-[->]?|[=!]=?|&&?|\|\|?|<[<=]?|>[>=]?|[*\/%~^]/,
    })
    Prism.languages.insertBefore('haxe', 'class-name', {
      regex: {
        pattern: /~\/(?:[^\/\\\r\n]|\\.)+\/[igmsu]*/,
        greedy: true,
      },
    })
    Prism.languages.insertBefore('haxe', 'keyword', {
      preprocessor: {
        pattern: /#\w+/,
        alias: 'builtin',
      },
      metadata: {
        pattern: /@:?\w+/,
        alias: 'symbol',
      },
      reification: {
        pattern: /\$(?:\w+|(?=\{))/,
        alias: 'variable',
      },
    })
    Prism.languages.haxe.string.inside.interpolation.inside.rest =
      Prism.languages.haxe
    delete Prism.languages.haxe['class-name']
  },
}