line.go
func newLine(no int, str string, opts *Options, f *File) *line {
	return &line{
		no:     no,
		str:    str,
		indent: indent(str),
		tokens: strings.Split(strings.TrimLeft(str, space), space),
		opts:   opts,
		file:   f,
	}
}
func newLine(no int, str string, opts *Options, f *File) *line {
	return &line{
		no:     no,
		str:    str,
		indent: indent(str),
		tokens: strings.Split(strings.TrimLeft(str, space), space),
		opts:   opts,
		file:   f,
	}
}
func newLine ( no int , str string , opts * Options , f * File ) * line { return & line { no : no , str : str , indent : indent ( str ) , tokens : strings . Split ( strings . TrimLeft ( str , space ) , space ) , opts : opts , file : f , } }
// newLine creates and returns a line.
newLine creates and returns a line .