source: node_modules/prismjs/components/prism-latex.js@ d24f17c

(function (Prism) {
        var funcPattern = /\\(?:[^a-z()[\]]|[a-z*]+)/i;
        var insideEqu = {
                'equation-command': {
                        pattern: funcPattern,
                        alias: 'regex'
                }
        };

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

        Prism.languages.tex = Prism.languages.latex;
        Prism.languages.context = Prism.languages.latex;
}(Prism));