mirror of https://gitlab.com/curben/blog
34 lines
979 B
JavaScript
34 lines
979 B
JavaScript
'use strict'
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/* global hexo */
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/*
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* Add Link button next to a heading
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* based on https://github.com/hexojs/hexo-renderer-marked/blob/master/lib/renderer.js
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*/
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const { slugize, stripHTML, unescapeHTML: unescape } = require('hexo-util')
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const anchorId = (str, transformOption) => {
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return slugize(stripHTML(unescape(str.replace('.', ''))).trim(), { transform: transformOption })
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}
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hexo.extend.filter.register('marked:renderer', function (renderer) {
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const { config } = this
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const headingId = {}
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renderer.heading = function (text, level) {
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const { modifyAnchors } = config.marked
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const transformOption = modifyAnchors
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let id = anchorId(text, transformOption)
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// Add a number after id if repeated
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if (headingId[id]) {
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id += `-${headingId[id]++}`
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} else {
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headingId[id] = 1
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}
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// add headerlink
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return `<h${level} id="${id}">${text} <a href="#${id}" class="headerlink" title="${stripHTML(text)}">§</a></h${level}>`
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}
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})
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