Method deleteSpan

internal/tui/prompt.go:288–300

deleteSpan removes the chip's label from the value and drops it from spans and store. Cursor lands at the vacated start; reconcile re-validates later spans, which shift left by the removed label length.

(chip chipSpan)

// and store. Cursor lands at the vacated start; reconcile re-validates later
// spans, which shift left by the removed label length.
func (p *promptInput) deleteSpan(chip chipSpan) {
	value := p.ta.Value()
	runes := []rune(value)
	if chip.end > len(runes) {
		return
	}
	spliced := string(runes[:chip.start]) + string(runes[chip.end:])
	p.ta.SetValue(spliced)
	p.setCursorRuneOffset(chip.start)
	delete(p.store, chip.id)
	p.spans = slices.DeleteFunc(p.spans, func(s chipSpan) bool { return s.id == chip.id })
	p.reconcile()
}

// reconcile re-finds each chip's label in the value (searching past the prior
// span's end) and updates offsets. A span whose label has vanished (e.g.