| 476 | return this.prependRight(index, content); |
| 477 | } |
| 478 | move(start, end, index) { |
| 479 | if (index >= start && index <= end) throw new Error('Cannot move a selection inside itself'); |
| 480 | this._split(start); |
| 481 | this._split(end); |
| 482 | this._split(index); |
| 483 | const first = this.byStart[start]; |
| 484 | const last = this.byEnd[end]; |
| 485 | const oldLeft = first.previous; |
| 486 | const oldRight = last.next; |
| 487 | const newRight = this.byStart[index]; |
| 488 | if (!newRight && last === this.lastChunk) return this; |
| 489 | const newLeft = newRight ? newRight.previous : this.lastChunk; |
| 490 | if (oldLeft) oldLeft.next = oldRight; |
| 491 | if (oldRight) oldRight.previous = oldLeft; |
| 492 | if (newLeft) newLeft.next = first; |
| 493 | if (newRight) newRight.previous = last; |
| 494 | if (!first.previous) this.firstChunk = last.next; |
| 495 | if (!last.next) { |
| 496 | this.lastChunk = first.previous; |
| 497 | this.lastChunk.next = null; |
| 498 | } |
| 499 | first.previous = newLeft; |
| 500 | last.next = newRight || null; |
| 501 | if (!newLeft) this.firstChunk = first; |
| 502 | if (!newRight) this.lastChunk = last; |
| 503 | return this; |
| 504 | } |
| 505 | overwrite(start, end, content, options) { |
| 506 | if (typeof content !== 'string') throw new TypeError('replacement content must be a string'); |
| 507 | while (start < 0) start += this.original.length; |