Ghost/ghost/admin/app/utils/format-markdown.js
Kevin Ansfield 4edebe9f1e use markdown-it for markdown previews (#690)
 use markdown-it for markdown previews

no issue

- replaces SimpleMDE's default `marked` rendering with `markdown-it`
- add ember-browserify and markdown-it plugins
2017-05-15 18:51:19 +02:00

48 lines
1.6 KiB
JavaScript

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