Method createCursorWithColumn

src/utils/Cursor.ts:458–468

(
    lineStart: number,
    lineEnd: number,
    targetColumn: number,
  )

  // Helper to create cursor with preserved column, clamped to line length
  // Snaps to grapheme boundary to avoid landing mid-grapheme
  private createCursorWithColumn(
    lineStart: number,
    lineEnd: number,
    targetColumn: number,
  ): Cursor {
    const lineLength = lineEnd - lineStart
    const clampedColumn = Math.min(targetColumn, lineLength)
    const rawOffset = lineStart + clampedColumn
    const offset = this.measuredText.snapToGraphemeBoundary(rawOffset)
    return new Cursor(this.measuredText, offset, 0)
  }

  endOfLogicalLine(): Cursor {
    return new Cursor(this.measuredText, this.findLogicalLineEnd(), 0)