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26 lines
755 B
JavaScript
26 lines
755 B
JavaScript
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var highlightRegExp = /highlight-(?:text|source)-([a-z0-9]+)/
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export default function highlightedCodeBlock (turndownService) {
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turndownService.addRule('highlightedCodeBlock', {
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filter: function (node) {
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var firstChild = node.firstChild
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return (
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node.nodeName === 'DIV' &&
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highlightRegExp.test(node.className) &&
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firstChild &&
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firstChild.nodeName === 'PRE'
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)
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},
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replacement: function (content, node, options) {
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var className = node.className || ''
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var language = (className.match(highlightRegExp) || [null, ''])[1]
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return (
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'\n\n' + options.fence + language + '\n' +
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node.firstChild.textContent +
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'\n' + options.fence + '\n\n'
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)
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}
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})
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}
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