How to use

isUpperVowel

method

in

org.apache.lucene.analysis.ga.IrishLowerCaseFilter

@Override
public boolean incrementToken() throws IOException {
 if (input.incrementToken()) {
  char[] chArray = termAtt.buffer();
  int chLen = termAtt.length();
  int idx = 0;
  if (chLen > 1 && (chArray[0] == 'n' || chArray[0] == 't') && isUpperVowel(chArray[1])) {
   chArray = termAtt.resizeBuffer(chLen + 1);
   for (int i = chLen; i > 1; i--) {
    chArray[i] = chArray[i - 1];
   }
   chArray[1] = '-';
   termAtt.setLength(chLen + 1);
   idx = 2;
   chLen = chLen + 1;
  }
  for (int i = idx; i < chLen;) {
   i += Character.toChars(Character.toLowerCase(chArray[i]), chArray, i);
   }
  return true;
 } else {
  return false;
 }
}

@Override
public boolean incrementToken() throws IOException {
 if (input.incrementToken()) {
  char[] chArray = termAtt.buffer();
  int chLen = termAtt.length();
  int idx = 0;
  if (chLen > 1 && (chArray[0] == 'n' || chArray[0] == 't') && isUpperVowel(chArray[1])) {
   chArray = termAtt.resizeBuffer(chLen + 1);
   for (int i = chLen; i > 1; i--) {
    chArray[i] = chArray[i - 1];
   }
   chArray[1] = '-';
   termAtt.setLength(chLen + 1);
   idx = 2;
   chLen = chLen + 1;
  }
  for (int i = idx; i < chLen;) {
   i += Character.toChars(Character.toLowerCase(chArray[i]), chArray, i);
   }
  return true;
 } else {
  return false;
 }
}

@Override
public boolean incrementToken() throws IOException {
 if (input.incrementToken()) {
  char[] chArray = termAtt.buffer();
  int chLen = termAtt.length();
  int idx = 0;
  if (chLen > 1 && (chArray[0] == 'n' || chArray[0] == 't') && isUpperVowel(chArray[1])) {
   chArray = termAtt.resizeBuffer(chLen + 1);
   for (int i = chLen; i > 1; i--) {
    chArray[i] = chArray[i - 1];
   }
   chArray[1] = '-';
   termAtt.setLength(chLen + 1);
   idx = 2;
   chLen = chLen + 1;
  }
  for (int i = idx; i < chLen;) {
   i += Character.toChars(Character.toLowerCase(chArray[i]), chArray, i);
   }
  return true;
 } else {
  return false;
 }
}