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joplin/packages/app-mobile/contentScripts/richTextEditorBundle/contentScript/convertHtmlToMarkdown.ts

33 lines
1022 B
TypeScript

const TurndownService = require('@joplin/turndown');
const turndownPluginGfm = require('@joplin/turndown-plugin-gfm').gfm;
// Avoid using @joplin/lib/HtmlToMd here. HtmlToMd may cause several megabytes
// of additional JavaScript and supporting data to be included.
const convertHtmlToMarkdown = (html: string|HTMLElement) => {
const turndownOpts = {
headingStyle: 'atx',
codeBlockStyle: 'fenced',
preserveImageTagsWithSize: true,
preserveNestedTables: true,
preserveColorStyles: true,
bulletListMarker: '-',
emDelimiter: '*',
strongDelimiter: '**',
allowResourcePlaceholders: true,
// If soft-breaks are enabled, lines need to end with two or more spaces for
// trailing <br/>s to render. See
// https://github.com/laurent22/joplin/issues/8430
br: ' ',
};
const turndown = new TurndownService(turndownOpts);
turndown.use(turndownPluginGfm);
turndown.remove('script');
turndown.remove('style');
const md = turndown.turndown(html);
return md;
};
export default convertHtmlToMarkdown;