// by Jaume Ortola
private boolean areEqual(final char x, final char y) {
if (x == y) {
return true;
}
if (dictionaryMetadata.getEquivalentChars() != null
&& dictionaryMetadata.getEquivalentChars().containsKey(x)
&& dictionaryMetadata.getEquivalentChars().get(x).contains(y)) {
return true;
}
if (dictionaryMetadata.isIgnoringDiacritics()) {
String xn = Normalizer.normalize(Character.toString(x), Form.NFD);
String yn = Normalizer.normalize(Character.toString(y), Form.NFD);
if (xn.charAt(0) == yn.charAt(0)) { // avoid case conversion, if possible
return true;
}
if (dictionaryMetadata.isConvertingCase()) {
// again case conversion only when needed -- we
// do not need String.lowercase because we only check
// single characters, so a cheaper method is enough
if (Character.isLetter(xn.charAt(0))) {
boolean testNeeded =
Character.isLowerCase(xn.charAt(0)) != Character.isLowerCase(yn.charAt(0));
if (testNeeded) {
return Character.toLowerCase(xn.charAt(0)) == Character.toLowerCase(yn.charAt(0));
}
}
}
return xn.charAt(0) == yn.charAt(0);
}
return false;
}
