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