public static string ToKatakana(string input, WanaKanaOptions?options = null)
{
if (input is null)
{
throw new ArgumentNullException(nameof(input));
}
options ??= new WanaKanaOptions();
if (input.Length == 0)
{
return(string.Empty);
}
if (options.PassRomaji)
{
return(KanaConverters.HiraganaToKatakana(input));
}
if (MixedChecker.IsMixed(input) || RomajiChecker.IsRomaji(input) || SpecialCharacterChecker.IsEnglishPunctuation(input[0]))
{
var hiragana = KanaConverters.ToKana(input.ToLowerInvariant(), options);
return(KanaConverters.HiraganaToKatakana(hiragana));
}
return(KanaConverters.HiraganaToKatakana(input));
}
private static string GetTokenType(char character, bool compact = false)
{
if (compact)
{
if (IsJaNumber(character))
{
return(TokenTypes.Other);
}
if (IsEnNumber(character))
{
return(TokenTypes.Other);
}
if (IsEnSpace(character))
{
return(TokenTypes.English);
}
if (SpecialCharacterChecker.IsEnglishPunctuation(character))
{
return(TokenTypes.Other);
}
if (IsJaSpace(character))
{
return(TokenTypes.Japanese);
}
if (SpecialCharacterChecker.IsJapanesePunctuation(character))
{
return(TokenTypes.Other);
}
if (JapaneseChecker.IsJapanese(character))
{
return(TokenTypes.Japanese);
}
if (RomajiChecker.IsRomaji(character))
{
return(TokenTypes.English);
}
}
else
{
if (IsJaSpace(character))
{
return(TokenTypes.Space);
}
if (IsEnSpace(character))
{
return(TokenTypes.Space);
}
if (IsJaNumber(character))
{
return(TokenTypes.JapaneseNumber);
}
if (IsEnNumber(character))
{
return(TokenTypes.EnglishNumber);
}
if (SpecialCharacterChecker.IsEnglishPunctuation(character))
{
return(TokenTypes.EnglishPunctuation);
}
if (SpecialCharacterChecker.IsJapanesePunctuation(character))
{
return(TokenTypes.JapanesePunctuation);
}
if (KanjiChecker.IsKanji(character))
{
return(TokenTypes.Kanji);
}
if (HiraganaChecker.IsHiragana(character))
{
return(TokenTypes.Hiragana);
}
if (KatakanaChecker.IsKatakana(character))
{
return(TokenTypes.Katakana);
}
if (JapaneseChecker.IsJapanese(character))
{
return(TokenTypes.Japanese);
}
if (RomajiChecker.IsRomaji(character))
{
return(TokenTypes.English);
}
}
return(TokenTypes.Other);
}
/// <summary> /// Test if input is Romaji (allowing Hepburn romanisation). /// </summary> /// <param name="input">Input.</param> /// <param name="additionalCharactersRegex">Regex with additional allowed characters.</param> /// <returns>A value indicating whether input is romaji.</returns> public static bool IsRomaji(string input, Regex additionalCharactersRegex) => RomajiChecker.IsRomaji(input, additionalCharactersRegex);
/// <summary> /// Test if input is Romaji (allowing Hepburn romanisation). /// </summary> /// <param name="input">Input.</param> /// <param name="additionalCharactersRegex">Additional allowed characters.</param> /// <returns>A value indicating whether input is romaji.</returns> public static bool IsRomaji(string input, params char[] additionalCharacters) => RomajiChecker.IsRomaji(input, additionalCharacters);
/// <summary> /// Test if input is Romaji (allowing Hepburn romanisation). /// </summary> /// <param name="input">Input.</param> /// <returns>A value indicating whether input is romaji.</returns> public static bool IsRomaji(string input) => RomajiChecker.IsRomaji(input);
/// <summary> /// Test if input is Romaji (allowing Hepburn romanisation). /// </summary> /// <param name="input">Input.</param> /// <returns>A value indicating whether input is romaji.</returns> public static bool IsRomaji(char input) => RomajiChecker.IsRomaji(input);