Method imageRefEndingAt

src/utils/Cursor.ts:300–303

* If an [Image #N] chip ends at `offset`, return its bounds. Used by left() * to hop the cursor over the chip instead of stepping into it.

(offset: number)

   * to hop the cursor over the chip instead of stepping into it.
   */
  imageRefEndingAt(offset: number): { start: number; end: number } | null {
    const m = this.text.slice(0, offset).match(/\[Image #\d+\]$/)
    return m ? { start: offset - m[0].length, end: offset } : null
  }

  imageRefStartingAt(offset: number): { start: number; end: number } | null {
    const m = this.text.slice(offset).match(/^\[Image #\d+\]/)