27 lines
941 B
JavaScript
27 lines
941 B
JavaScript
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/*
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* https://github.com/digitalmoksha/markdown-it-inject-linenumbers/blob/master/index.js
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*/
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export default function injectLinenumbersPlugin (md) {
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//
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// Inject line numbers for sync scroll. Notes:
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//
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// - We track only headings and paragraphs, at any level.
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// - TODO Footnotes content causes jumps. Level limit filters it automatically.
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function injectLineNumbers (tokens, idx, options, env, slf) {
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var line
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// if (tokens[idx].map && tokens[idx].level === 0) {
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if (tokens[idx].map) {
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line = tokens[idx].map[0]
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tokens[idx].attrJoin('class', 'source-line')
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tokens[idx].attrSet('data-source-line', String(line))
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}
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return slf.renderToken(tokens, idx, options, env, slf)
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}
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md.renderer.rules.paragraph_open = injectLineNumbers
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md.renderer.rules.heading_open = injectLineNumbers
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md.renderer.rules.list_item_open = injectLineNumbers
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md.renderer.rules.table_open = injectLineNumbers
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}
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