Method handleChipKey

internal/tui/prompt.go:221–249

handleChipKey gives chips atomic-token semantics: Backspace/Delete at a boundary removes the whole chip, ←/→ jumps across it, and a cursor inside a chip is snapped to a boundary first. Returns (handled, updated).

(msg tea.KeyMsg)

// boundary removes the whole chip, ←/→ jumps across it, and a cursor inside a
// chip is snapped to a boundary first. Returns (handled, updated).
func (p promptInput) handleChipKey(msg tea.KeyMsg) (bool, promptInput) {
	if len(p.spans) == 0 {
		return false, p
	}
	cur := p.snapCursorOutOfChip()
	switch msg.Type {
	case tea.KeyBackspace:
		if chip, ok := p.chipAtBoundary(cur, false); ok {
			p.deleteSpan(chip)
			return true, p
		}
	case tea.KeyDelete:
		if chip, ok := p.chipAtBoundary(cur, true); ok {
			p.deleteSpan(chip)
			return true, p
		}
	case tea.KeyLeft:
		if chip, ok := p.chipAtBoundary(cur, false); ok {
			p.setCursorRuneOffset(chip.start)
			return true, p
		}
	case tea.KeyRight:
		if chip, ok := p.chipAtBoundary(cur, true); ok {
			p.setCursorRuneOffset(chip.end)
			return true, p
		}
	}
	return false, p
}

// insertChip splices a chip label in at the cursor, recording the new span at
// the right ORDER position so the following reconcile() walks the labels