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48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
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/* global html_sanitize */
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import cajaSanitizers from './caja-sanitizers';
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import markdownit from 'npm:markdown-it';
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import markdownitFootnote from 'npm:markdown-it-footnote';
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import markdownitLazyHeaders from 'npm:markdown-it-lazy-headers';
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import markdownitMark from 'npm:markdown-it-mark';
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import markdownitNamedHeaders from 'npm:markdown-it-named-headers';
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// eslint-disable-next-line new-cap
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let md = markdownit({
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html: true,
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breaks: true,
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linkify: true
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})
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.use(markdownitFootnote)
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.use(markdownitLazyHeaders)
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.use(markdownitMark)
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.use(markdownitNamedHeaders, {
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// match legacy Showdown IDs otherwise default is github style dasherized
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slugify(inputString, usedHeaders) {
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let slug = inputString.replace(/[^\w]/g, '').toLowerCase();
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if (usedHeaders[slug]) {
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usedHeaders[slug]++;
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slug += usedHeaders[slug];
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}
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return slug;
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}
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});
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export default function formatMarkdown(_markdown) {
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let markdown = _markdown || '';
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let escapedhtml = '';
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// convert markdown to HTML
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escapedhtml = md.render(markdown);
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// replace script and iFrame
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escapedhtml = escapedhtml.replace(/<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi,
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'<pre class="js-embed-placeholder">Embedded JavaScript</pre>');
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escapedhtml = escapedhtml.replace(/<iframe\b[^<]*(?:(?!<\/iframe>)<[^<]*)*<\/iframe>/gi,
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'<pre class="iframe-embed-placeholder">Embedded iFrame</pre>');
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// sanitize html
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escapedhtml = html_sanitize(escapedhtml, cajaSanitizers.url, cajaSanitizers.id);
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return escapedhtml;
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}
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