func MustNewRegexp(s string) Regexp {
	re, err := NewRegexp(s)
	if err != nil {
		panic(err)
	}
	return re
}
func MustNewRegexp(s string) Regexp {
	re, err := NewRegexp(s)
	if err != nil {
		panic(err)
	}
	return re
}
func MustNewRegexp ( s string ) Regexp { re , err := NewRegexp ( s ) if err != nil { panic ( err ) } return re }
// MustNewRegexp works like NewRegexp, but panics if the regular expression does not compile.
MustNewRegexp works like NewRegexp but panics if the regular expression does not compile .