line.go
func indent(str string) int {
	var i int

	for _, b := range str {
		if b != unicodeSpace {
			break
		}
		i++
	}

	return i / 2
}
func indent(str string) int {
	var i int

	for _, b := range str {
		if b != unicodeSpace {
			break
		}
		i++
	}

	return i / 2
}
func indent ( str string ) int { var i int for _ , b := range str { if b != unicodeSpace { break } i ++ } return i / 2 }
// indent returns the line's indent.
indent returns the line s indent .