func routeSplitFunc(data []byte, atEOF bool) (int, []byte, error) {
	if atEOF || data == nil {
		return 0, nil, io.EOF
	}

	r, _ := utf8.DecodeRune(data)

	// matcher
	if r == '<' {
		i := bytes.IndexRune(data, '>')
		if i == -1 {
			return 0, nil, NoClosingBracket
		}
		return (i + 1), data[:(i + 1)], nil
	}

	// one char
	if len(data) == 1 {
		return 1, data, nil
	}

	// should ignore first '/'
	slashIndex := bytes.IndexRune(data[1:], '/')
	if slashIndex != -1 {
		slashIndex++
	}

	matchIndex := bytes.IndexRune(data, '<')

	// remaining string would be a static entry
	if slashIndex == -1 && matchIndex == -1 {
		return len(data), data, nil
	}

	// split by '<'
	// return data before '<'
	if matchIndex != -1 && (slashIndex == -1 || slashIndex > matchIndex) {
		return matchIndex, data[:matchIndex], nil
	}

	// split by '/'
	// return data before '/' including '/'
	return slashIndex + 1, data[:(slashIndex + 1)], nil
}
func routeSplitFunc(data []byte, atEOF bool) (int, []byte, error) {
	if atEOF || data == nil {
		return 0, nil, io.EOF
	}

	r, _ := utf8.DecodeRune(data)

	
	if r == '<' {
		i := bytes.IndexRune(data, '>')
		if i == -1 {
			return 0, nil, NoClosingBracket
		}
		return (i + 1), data[:(i + 1)], nil
	}

	
	if len(data) == 1 {
		return 1, data, nil
	}

	
	slashIndex := bytes.IndexRune(data[1:], '/')
	if slashIndex != -1 {
		slashIndex++
	}

	matchIndex := bytes.IndexRune(data, '<')

	
	if slashIndex == -1 && matchIndex == -1 {
		return len(data), data, nil
	}

	
	
	if matchIndex != -1 && (slashIndex == -1 || slashIndex > matchIndex) {
		return matchIndex, data[:matchIndex], nil
	}

	
	
	return slashIndex + 1, data[:(slashIndex + 1)], nil
}
func routeSplitFunc ( data [ ] byte , atEOF bool ) ( int , [ ] byte , error ) { if atEOF || data == nil { return 0 , nil , io . EOF } r , _ := utf8 . DecodeRune ( data ) // matcher if r == '<' { i := bytes . IndexRune ( data , '>' ) if i == - 1 { return 0 , nil , NoClosingBracket } return ( i + 1 ) , data [ : ( i + 1 ) ] , nil } // one char if len ( data ) == 1 { return 1 , data , nil } // should ignore first '/' slashIndex := bytes . IndexRune ( data [ 1 : ] , '/' ) if slashIndex != - 1 { slashIndex ++ } matchIndex := bytes . IndexRune ( data , '<' ) // remaining string would be a static entry if slashIndex == - 1 && matchIndex == - 1 { return len ( data ) , data , nil } // split by '<' // return data before '<' if matchIndex != - 1 && ( slashIndex == - 1 || slashIndex > matchIndex ) { return matchIndex , data [ : matchIndex ] , nil } // split by '/' // return data before '/' including '/' return slashIndex + 1 , data [ : ( slashIndex + 1 ) ] , nil }
// routeSplitFunc is the SplitFunc to scan url pattern.
routeSplitFunc is the SplitFunc to scan url pattern .