2019-08-09 13:02:51 +00:00
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'use strict'
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/* global hexo */
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2019-05-25 12:50:54 +00:00
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/*
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* Add "Copy" button to code snippet
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*/
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2019-05-25 10:16:35 +00:00
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2019-09-04 02:36:08 +00:00
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hexo.extend.filter.register('after_render:html', (data) => {
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const copyBtn = '<button class="copy-button">Copy</button>'
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2019-05-25 10:16:35 +00:00
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2019-09-04 02:36:08 +00:00
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// Regex is based on https://github.com/hexojs/hexo/pull/3697
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2019-10-19 03:12:15 +00:00
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return data.replace(/<pre>(?!<\/pre>).+?<\/pre>/gs, (str) => {
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2019-10-19 03:07:59 +00:00
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if (!str.includes(copyBtn)) return str.replace('</pre>', copyBtn + '</pre>')
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2019-09-06 07:02:44 +00:00
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return str
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})
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2019-05-25 10:16:35 +00:00
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})
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