35 lines
757 B
JavaScript
35 lines
757 B
JavaScript
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/**
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* @typedef {import('mdast').Heading} Heading
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* @typedef {import('../types.js').State} State
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*/
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import {EXIT, visit} from 'unist-util-visit'
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import {toString} from 'mdast-util-to-string'
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/**
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* @param {Heading} node
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* @param {State} state
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* @returns {boolean}
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*/
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export function formatHeadingAsSetext(node, state) {
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let literalWithBreak = false
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// Look for literals with a line break.
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// Note that this also
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visit(node, function (node) {
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if (
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('value' in node && /\r?\n|\r/.test(node.value)) ||
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node.type === 'break'
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) {
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literalWithBreak = true
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return EXIT
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}
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})
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return Boolean(
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(!node.depth || node.depth < 3) &&
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toString(node) &&
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(state.options.setext || literalWithBreak)
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)
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}
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