4998041d73
* automatic toc generation in markdown * don't open hash links in new tab * only process toc for top level items --------- Co-authored-by: ekzyis <ek@stacker.news>
24 lines
579 B
JavaScript
24 lines
579 B
JavaScript
import { fromMarkdown } from 'mdast-util-from-markdown'
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import { visit } from 'unist-util-visit'
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import { toString } from 'mdast-util-to-string'
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import { slug } from 'github-slugger'
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export function extractHeadings (markdownOrTree) {
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const tree = typeof markdownOrTree === 'string'
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? fromMarkdown(markdownOrTree)
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: markdownOrTree
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const headings = []
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visit(tree, 'heading', node => {
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const str = toString(node)
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headings.push({
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heading: str,
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slug: slug(str.replace(/[^\w\-\s]+/gi, '')),
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depth: node.depth
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})
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})
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return headings
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}
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