33 lines
942 B
JavaScript
33 lines
942 B
JavaScript
'use strict'
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var toString = require('nlcst-to-string')
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var modifyChildren = require('unist-util-modify-children')
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var expressions = require('../expressions')
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module.exports = modifyChildren(mergeInitialDigitSentences)
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// Initial lowercase letter.
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var digit = expressions.digitStart
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// Merge a sentence into its previous sentence, when the sentence starts with a
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// lower case letter.
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function mergeInitialDigitSentences(child, index, parent) {
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var children = child.children
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var siblings = parent.children
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var prev = siblings[index - 1]
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var head = children[0]
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if (prev && head && head.type === 'WordNode' && digit.test(toString(head))) {
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prev.children = prev.children.concat(children)
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siblings.splice(index, 1)
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// Update position.
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if (prev.position && child.position) {
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prev.position.end = child.position.end
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}
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// Next, iterate over the node *now* at the current position.
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return index
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}
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}
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