88 lines
2.2 KiB
JavaScript
88 lines
2.2 KiB
JavaScript
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(function (Prism) {
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var javaDocLike = Prism.languages.javadoclike = {
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'parameter': {
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pattern: /(^[\t ]*(?:\/{3}|\*|\/\*\*)\s*@(?:arg|arguments|param)\s+)\w+/m,
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lookbehind: true
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},
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'keyword': {
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// keywords are the first word in a line preceded be an `@` or surrounded by curly braces.
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// @word, {@word}
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pattern: /(^[\t ]*(?:\/{3}|\*|\/\*\*)\s*|\{)@[a-z][a-zA-Z-]+\b/m,
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lookbehind: true
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},
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'punctuation': /[{}]/
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};
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/**
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* Adds doc comment support to the given language and calls a given callback on each doc comment pattern.
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*
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* @param {string} lang the language add doc comment support to.
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* @param {(pattern: {inside: {rest: undefined}}) => void} callback the function called with each doc comment pattern as argument.
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*/
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function docCommentSupport(lang, callback) {
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var tokenName = 'doc-comment';
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var grammar = Prism.languages[lang];
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if (!grammar) {
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return;
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}
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var token = grammar[tokenName];
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if (!token) {
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// add doc comment: /** */
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var definition = {};
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definition[tokenName] = {
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pattern: /(^|[^\\])\/\*\*[^/][\s\S]*?(?:\*\/|$)/,
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lookbehind: true,
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alias: 'comment'
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};
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grammar = Prism.languages.insertBefore(lang, 'comment', definition);
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token = grammar[tokenName];
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}
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if (token instanceof RegExp) { // convert regex to object
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token = grammar[tokenName] = { pattern: token };
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}
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if (Array.isArray(token)) {
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for (var i = 0, l = token.length; i < l; i++) {
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if (token[i] instanceof RegExp) {
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token[i] = { pattern: token[i] };
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}
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callback(token[i]);
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}
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} else {
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callback(token);
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}
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}
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/**
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* Adds doc-comment support to the given languages for the given documentation language.
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*
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* @param {string[]|string} languages
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* @param {Object} docLanguage
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*/
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function addSupport(languages, docLanguage) {
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if (typeof languages === 'string') {
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languages = [languages];
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}
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languages.forEach(function (lang) {
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docCommentSupport(lang, function (pattern) {
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if (!pattern.inside) {
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pattern.inside = {};
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}
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pattern.inside.rest = docLanguage;
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});
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});
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}
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Object.defineProperty(javaDocLike, 'addSupport', { value: addSupport });
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javaDocLike.addSupport(['java', 'javascript', 'php'], javaDocLike);
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}(Prism));
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