posthtml-prism
v2.0.1
Published
PostHTML code syntax highlighting with Prism
Downloads
788
Readme
Compile-time syntax highlighting for code blocks with Prism
Introduction
Before:
<pre><code class="language-javascript">
const foo = 'bar'
console.log(foo)
</code></pre>
After:
<pre><code class="language-javascript">
<span class="token keyword">const</span> foo <span class="token operator">=</span> <span class="token string">'bar'</span>
console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span>foo<span class="token punctuation">)</span>
</code></pre>
Install
$ npm i posthtml posthtml-prism
Usage
const fs = require('fs')
const posthtml = require('posthtml')
const highlight = require('posthtml-prism')
const source = fs.readFileSync('./before.html')
posthtml([
highlight({ inline: true })
])
.process(source)
.then(result => fs.writeFileSync('./after.html', result.html))
Options
inline
Type: boolean
Default: false
By default, only <code>
tags wrapped in <pre>
tags are highlighted.
Pass in inline: true
to highlight all code tags.
Styling
You will also need to include a Prism theme stylesheet in your HTML.
See PrismJS/prism-themes for all available themes.
Languages
By default, Prism loads the following languages: markup
, css
, clike
, and javascript
.
You can specify the language to be used for highlighting your code, by adding a language-*
or lang-*
class to the <code>
tag:
<pre>
<code class="language-php">
$app->post('framework/{id}', function($framework) {
$this->dispatch(new Energy($framework));
});
</code>
</pre>
Skip highlighting on a node
You can skip highlighting on a node in two ways:
- add a
prism-ignore
attribute on the node:
<pre>
<code prism-ignore>...</code>
</pre>
- or, add a
prism-ignore
class:
<pre>
<code class="prism-ignore">...</code>
</pre>
In both cases, the prism-ignore
attribute/class will be removed and highlighting will be skipped.