reprism/languages/latex.js

Modular Syntax highlighting for the web

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = {
  language: 'latex',
  init: function init(Prism) {
    (function (Prism) {
      var funcPattern = /\\(?:[^a-z()[\]]|[a-z*]+)/i,
          insideEqu = {
        'equation-command': {
          pattern: funcPattern,
          alias: 'regex'
        }
      };

      Prism.languages.latex = {
        comment: /%.*/m,
        // the verbatim environment prints whitespace to the document
        cdata: {
          pattern: /(\\begin\{((?:verbatim|lstlisting)\*?)\})[\s\S]*?(?=\\end\{\2\})/,
          lookbehind: true
        },
        /*
        * equations can be between $ $ or \( \) or \[ \]
        * (all are multiline)
        */
        equation: [{
          pattern: /\$(?:\\[\s\S]|[^\\$])*\$|\\\([\s\S]*?\\\)|\\\[[\s\S]*?\\\]/,
          inside: insideEqu,
          alias: 'string'
        }, {
          pattern: /(\\begin\{((?:equation|math|eqnarray|align|multline|gather)\*?)\})[\s\S]*?(?=\\end\{\2\})/,
          lookbehind: true,
          inside: insideEqu,
          alias: 'string'
        }],
        /*
        * arguments which are keywords or references are highlighted
        * as keywords
        */
        keyword: {
          pattern: /(\\(?:begin|end|ref|cite|label|usepackage|documentclass)(?:\[[^\]]+\])?\{)[^}]+(?=\})/,
          lookbehind: true
        },
        url: {
          pattern: /(\\url\{)[^}]+(?=\})/,
          lookbehind: true
        },
        /*
        * section or chapter headlines are highlighted as bold so that
        * they stand out more
        */
        headline: {
          pattern: /(\\(?:part|chapter|section|subsection|frametitle|subsubsection|paragraph|subparagraph|subsubparagraph|subsubsubparagraph)\*?(?:\[[^\]]+\])?\{)[^}]+(?=\}(?:\[[^\]]+\])?)/,
          lookbehind: true,
          alias: 'class-name'
        },
        function: {
          pattern: funcPattern,
          alias: 'selector'
        },
        punctuation: /[[\]{}&]/
      };
    })(Prism);
  }
};