@diplodoc/transform/lib/highlight.js

A simple transformer of text in YFM (Yandex Flavored Markdown) to HTML

"use strict";
const utils_1 = require("markdown-it/lib/common/utils");
module.exports = function makeHighlight(langs = {}) {
    try {
        // Important require.
        // Because we want to have a posibility to run in projects without hljs dependency
        const hljs = require('highlight.js');
        Object.keys(langs).forEach((lang) => {
            hljs.registerLanguage(lang, langs[lang]);
        });
        return function highlight(str, lang) {
            let highlightedStr;
            const classNames = ['hljs'];
            if (lang && hljs.getLanguage(lang)) {
                classNames.push(lang);
                try {
                    highlightedStr = hljs.highlight(lang, str, true).value;
                }
                catch (_) { }
            }
            highlightedStr = highlightedStr || (0, utils_1.escapeHtml)(str);
            return `<pre><code class="${classNames.join(' ')}">${highlightedStr}</code></pre>`;
        };
    }
    catch (_a) {
        return (str) => (0, utils_1.escapeHtml)(str);
    }
};
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