Method _split

benchmark/data.js:677–685

(index)

		return clone;
	}
	_split(index) {
		if (this.byStart[index] || this.byEnd[index]) return;
		let chunk = this.lastSearchedChunk;
		const searchForward = index > chunk.end;
		while (chunk) {
			if (chunk.contains(index)) return this._splitChunk(chunk, index);
			chunk = searchForward ? this.byStart[chunk.end] : this.byEnd[chunk.start];
		}
	}
	_splitChunk(chunk, index) {
		if (chunk.edited && chunk.content.length) {
			const loc = getLocator(this.original)(index);