48 lines
1.5 KiB
JavaScript
48 lines
1.5 KiB
JavaScript
|
/**
|
|||
|
|
* @typedef {import('nlcst').Paragraph} Paragraph
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
import {toString} from 'nlcst-to-string'
|
|||
|
|
import {modifyChildren} from 'unist-util-modify-children'
|
|||
|
|
// Closing or final punctuation, or terminal markers that should still be
|
|||
|
|
// included in the previous sentence, even though they follow the sentence’s
|
|||
|
|
// terminal marker.
|
|||
|
|
import {affixSymbol} from '../expressions.js'
|
|||
|
|
|
|||
|
|
// Move certain punctuation following a terminal marker (thus in the next
|
|||
|
|
// sentence) to the previous sentence.
|
|||
|
|
export const mergeAffixSymbol = modifyChildren(
|
|||
|
|
/**
|
|||
|
|
* @type {import('unist-util-modify-children').Modifier<Paragraph>}
|
|||
|
|
*/
|
|||
|
|
function (child, index, parent) {
|
|||
|
|
if ('children' in child && child.children.length > 0 && index > 0) {
|
|||
|
|
const previous = parent.children[index - 1]
|
|||
|
|
const first = child.children[0]
|
|||
|
|
const second = child.children[1]
|
|||
|
|
|
|||
|
|
if (
|
|||
|
|
previous &&
|
|||
|
|
previous.type === 'SentenceNode' &&
|
|||
|
|
(first.type === 'SymbolNode' || first.type === 'PunctuationNode') &&
|
|||
|
|
affixSymbol.test(toString(first))
|
|||
|
|
) {
|
|||
|
|
child.children.shift() // Remove `first`.
|
|||
|
|
previous.children.push(first)
|
|||
|
|
|
|||
|
|
// Update position.
|
|||
|
|
if (first.position && previous.position) {
|
|||
|
|
previous.position.end = first.position.end
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (second && second.position && child.position) {
|
|||
|
|
child.position.start = second.position.start
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Next, iterate over the previous node again.
|
|||
|
|
return index - 1
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
)
|