package pb import ( "github.com/mattn/go-runewidth" "regexp" ) // Finds the control character sequences (like colors) var ctrlFinder = regexp.MustCompile("\x1b\x5b[0-9]+\x6d") func escapeAwareRuneCountInString(s string) int { n := runewidth.StringWidth(s) for _, sm := range ctrlFinder.FindAllString(s, -1) { n -= len(sm) } return n }