private string ConvertToKatakana(String toKatakana)
{
JapaneseKanaConverter converter = new JapaneseKanaConverter();
String converted = "";
for (int i = 0; i < toKatakana.Length; i++) {
if (JapaneseKanaClassifier.IsKatakana(Convert.ToString(toKatakana[i])))
converted += toKatakana[i];
else if (JapaneseKanaClassifier.IsHiragana(Convert.ToString(toKatakana[i])))
converted += converter.HiraganaToKatakana(Convert.ToString(toKatakana[i]));
else {
Console.WriteLine(toKatakana + " " + toKatakana[i] + " " + i);
if (JapaneseKanaClassifier.IsKanji(Convert.ToString(toKatakana[i])))
throw new FormatException("Kanji Error");
else
converted += toKatakana[i]; //Latin Characters
}
}
return converted;
}
public static string KanaToRomaji(String kana)
{
if (JapaneseKanaClassifier.ContainsKanji(kana))
throw new FormatException("String contains kanji");
JapaneseKanaConverter converter = new JapaneseKanaConverter();
if (JapaneseKanaClassifier.IsHiragana(kana)) {
kana = converter.HiraganaToKatakana(kana);
}
String converted = "";
for (int i = 0; i < kana.Length; i++) {
if (JapaneseKanaClassifier.IsHiragana(kana[i])) {
converted += converter.HiraganaToKatakana(Convert.ToString(kana[i]));
}
else { converted += kana[i]; }
}
kana = converted;
Dictionary<string, string> dictionary = new Dictionary<string, string>();
Dictionary<string, string> digraph = new Dictionary<string, string>();
for (int i = 0; i < romajiKatakanaPairs.Length; i += 2)
dictionary.Add(romajiKatakanaPairs[i], romajiKatakanaPairs[i + 1]);
for (int i = 0; i < romajiKatakanaDigraphs.Length; i += 2)
digraph.Add(romajiKatakanaDigraphs[i], romajiKatakanaDigraphs[i + 1]);
String temp = "";
String modified = "";
for (int i = 0; i < kana.Length; i++) {
temp = "";
if (((i + 1) < kana.Length) && dictionary.ContainsKey(Convert.ToString(kana[i]))) {
temp = kana[i] + "" + kana[i + 1];
if (digraph.ContainsKey(temp)) {
modified += digraph[temp];
i++;
}
else if (dictionary.ContainsKey(Convert.ToString(kana[i]))) {
modified += dictionary[Convert.ToString(kana[i])];
}
}
else if (dictionary.ContainsKey(Convert.ToString(kana[i]))) {
modified += dictionary[Convert.ToString(kana[i])];
}
else if (kana[i] == 'っ' || kana[i] == 'ッ') {
string buffer = "";
if (((i + 1) < kana.Length) && dictionary.ContainsKey(Convert.ToString(kana[i + 1])) && JapaneseKanaClassifier.IsJapaneseScript(Convert.ToString(kana[i + 1]))) {
buffer += dictionary[Convert.ToString(kana[i + 1])];
modified += buffer[0];
}
else if ((i + 1) == kana.Length || (((i + 1) < kana.Length) && dictionary.ContainsKey(Convert.ToString(kana[i + 1])) && !JapaneseKanaClassifier.IsJapaneseScript(Convert.ToString(kana[i + 1]))))
modified += "-";
}
else if (kana[i] == 'ー') {
modified += modified[modified.Length - 1];
}
else {
modified += kana[i];
}
}
return modified;
}
