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Merge pull request #2956 from ryzokuken/plugin-markdown

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markdown plugin improvements
This commit is contained in:
Hakim El Hattab 2021-05-17 09:54:24 +02:00 committed by GitHub
commit 2c115b887a
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 28 additions and 20 deletions
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48
plugin/markdown/plugin.js
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@ -421,34 +421,42 @@ const Plugin = () => {
deck = reveal;
let renderer = new marked.Renderer();
let { renderer, animateLists, ...markedOptions } = deck.getConfig().markdown;
renderer.code = ( code, language ) => {
if (!renderer) {
let renderer = new marked.Renderer();
// Off by default
let lineNumbers = '';
renderer.code = ( code, language ) => {
// Users can opt in to show line numbers and highlight
// specific lines.
// ```javascript [] show line numbers
// ```javascript [1,4-8] highlights lines 1 and 4-8
if( CODE_LINE_NUMBER_REGEX.test( language ) ) {
lineNumbers = language.match( CODE_LINE_NUMBER_REGEX )[1].trim();
lineNumbers = `data-line-numbers="${lineNumbers}"`;
language = language.replace( CODE_LINE_NUMBER_REGEX, '' ).trim();
}
// Off by default
let lineNumbers = '';
// Escape before this gets injected into the DOM to
// avoid having the HTML parser alter our code before
// highlight.js is able to read it
code = escapeForHTML( code );
// Users can opt in to show line numbers and highlight
// specific lines.
// ```javascript [] show line numbers
// ```javascript [1,4-8] highlights lines 1 and 4-8
if( CODE_LINE_NUMBER_REGEX.test( language ) ) {
lineNumbers = language.match( CODE_LINE_NUMBER_REGEX )[1].trim();
lineNumbers = `data-line-numbers="${lineNumbers}"`;
language = language.replace( CODE_LINE_NUMBER_REGEX, '' ).trim();
}
return `<pre><code ${lineNumbers} class="${language}">${code}</code></pre>`;
};
// Escape before this gets injected into the DOM to
// avoid having the HTML parser alter our code before
// highlight.js is able to read it
code = escapeForHTML( code );
return `<pre><code ${lineNumbers} class="${language}">${code}</code></pre>`;
};
}
if (animateLists) {
renderer.listitem = (text) => `<li class="fragment">${text}</li>`;
}
marked.setOptions( {
renderer,
...deck.getConfig().markdown
...markedOptions
} );
return processSlides( deck.getRevealElement() ).then( convertSlides );