57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
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/**
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* @typedef {import('nlcst').Paragraph} Paragraph
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*/
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import {modifyChildren} from 'unist-util-modify-children'
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// Merge a sentence into the following sentence, when the sentence does not
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// contain word tokens.
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export const mergeNonWordSentences = modifyChildren(
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/**
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* @type {import('unist-util-modify-children').Modifier<Paragraph>}
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*/
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function (child, index, parent) {
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if ('children' in child) {
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let position = -1
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while (child.children[++position]) {
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if (child.children[position].type === 'WordNode') {
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return
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}
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}
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const previous = parent.children[index - 1]
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if (previous && 'children' in previous) {
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previous.children.push(...child.children)
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// Remove the child.
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parent.children.splice(index, 1)
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// Patch position.
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if (previous.position && child.position) {
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previous.position.end = child.position.end
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}
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// Next, iterate over the node *now* at the current position (which was the
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// next node).
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return index
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}
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const next = parent.children[index + 1]
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if (next && 'children' in next) {
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next.children.unshift(...child.children)
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// Patch position.
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if (next.position && child.position) {
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next.position.start = child.position.start
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}
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// Remove the child.
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parent.children.splice(index, 1)
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}
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}
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}
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)
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