Function countLines

internal/tui/prompt.go:210–216

countLines returns a paste's visual line count. Terminals disagree on separators (\n unix, \r old-mac, \r\n Windows); max of the \n and \r counts handles all three without double-counting \r\n.

(s string)

// separators (\n unix, \r old-mac, \r\n Windows); max of the \n and \r counts
// handles all three without double-counting \r\n.
func countLines(s string) int {
	n := strings.Count(s, "\n")
	if r := strings.Count(s, "\r"); r > n {
		n = r
	}
	return n + 1
}

// handleChipKey gives chips atomic-token semantics: Backspace/Delete at a
// boundary removes the whole chip, ←/→ jumps across it, and a cursor inside a