59 lines
1.3 KiB
JavaScript
59 lines
1.3 KiB
JavaScript
import slug from 'slug';
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import truncate from 'truncate-html';
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import marked, { Renderer } from 'marked';
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import highlight from 'highlight.js';
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slug.defaults.mode ='rfc3986';
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const renderer = new Renderer();
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renderer.code = (code, language) => {
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const validLang = !!(language && highlight.getLanguage(language));
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const highlighted = validLang ? highlight.highlight(language, code).value : code;
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return `<pre><code class="hljs ${language}">${highlighted}</code></pre>`;
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};
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renderer.heading = (text, level) => {
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const headingSlug = slug(text);
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return `
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<h${level}>
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<a name="${headingSlug}" class="anchor" href="#${headingSlug}">
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<span class="header-link"> </span>
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</a>
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${text}
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</h${level}>
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`;
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},
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marked.setOptions({
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renderer: renderer,
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gfm: true,
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tables: true,
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breaks: false,
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pedantic: false,
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sanitize: true,
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smartLists: true,
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smartypants: true,
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});
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// TODO: This is syncronous and can be costly,
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// should be performed outside http request
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const convertToMarkdown = (text) => {
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return marked(text);
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};
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truncate.defaultOptions = {
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stripTags: false,
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ellipsis: '...',
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decodeEntities: false,
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excludes: ['h1', 'pre', ],
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};
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const truncateMarkdown = (text, length) => {
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const html = convertToMarkdown(text);
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return truncate(html, length);
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};
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export {
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convertToMarkdown,
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truncateMarkdown,
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};
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