func NormalizeTitle(title string) string {
normalizedTitle := title
normalizedTitle = strings.ToLower(normalizedTitle)
normalizedTitle = RomanizeHepburn(title)
normalizedTitle = strings.ToLower(normalizedTitle)
normalizedTitle = RemoveTrailingApostrophe(normalizedTitle)
normalizedTitle, _, _ = transform.String(transform.Chain(
norm.NFD,
transform.RemoveFunc(func(r rune) bool {
return unicode.Is(unicode.Mn, r)
}),
norm.NFC), normalizedTitle)
normalizedTitle = strings.ToLower(normalizedTitle)
normalizedTitle = regexp.MustCompile(`\(\d+\)`).ReplaceAllString(normalizedTitle, " ")
normalizedTitle = strings.Map(func(r rune) rune {
if !unicode.IsLetter(r) && !unicode.IsDigit(r) && r != '.' {
return ' '
}
return r
}, normalizedTitle)
normalizedTitle = regexp.MustCompile(`\s+`).ReplaceAllString(normalizedTitle, " ")
normalizedTitle = strings.TrimSpace(normalizedTitle)
return normalizedTitle
}
func ExampleRemoveFunc() {
input := []byte(`tschüß; до свидания`)
b := make([]byte, len(input))
t := transform.RemoveFunc(unicode.IsSpace)
n, _, _ := t.Transform(b, input, true)
fmt.Println(string(b[:n]))
t = transform.RemoveFunc(func(r rune) bool {
return !unicode.Is(unicode.Latin, r)
})
n, _, _ = t.Transform(b, input, true)
fmt.Println(string(b[:n]))
n, _, _ = t.Transform(b, norm.NFD.Bytes(input), true)
fmt.Println(string(b[:n]))
// Output:
// tschüß;досвидания
// tschüß
// tschuß
}