private boolean createFormattingTemplate(NumberFormat format)
{
String numberPattern = format.getPattern();
// The formatter doesn't format numbers when numberPattern contains "|", e.g.
// (20|3)\d{4}. In those cases we quickly return.
if (numberPattern.indexOf('|') != -1)
{
return(false);
}
// Replace anything in the form of [..] with \d
numberPattern = CHARACTER_CLASS_PATTERN.matcher(numberPattern).replaceAll("\\\\d");
// Replace any standalone digit (not the one in d{}) with \d
numberPattern = STANDALONE_DIGIT_PATTERN.matcher(numberPattern).replaceAll("\\\\d");
formattingTemplate.setLength(0);
String tempTemplate = getFormattingTemplate(numberPattern, format.getFormat());
if (tempTemplate.length() > 0)
{
formattingTemplate.append(tempTemplate);
return(true);
}
return(false);
}
/**
* Clears the internal state of the formatter, so it can be reused.
*/
public void clear()
{
currentOutput = "";
accruedInput.setLength(0);
accruedInputWithoutFormatting.setLength(0);
formattingTemplate.setLength(0);
lastMatchPosition = 0;
currentFormattingPattern = "";
prefixBeforeNationalNumber.setLength(0);
nationalPrefixExtracted = "";
nationalNumber.setLength(0);
ableToFormat = true;
inputHasFormatting = false;
positionToRemember = 0;
originalPosition = 0;
isCompleteNumber = false;
isExpectingCountryCallingCode = false;
possibleFormats.clear();
shouldAddSpaceAfterNationalPrefix = false;
if (!currentMetadata.equals(defaultMetadata))
{
currentMetadata = getMetadataForRegion(defaultCountry);
}
}
private int normalizeCharClass(StringBuilder newPattern, int i) {
StringBuilder charClass = new StringBuilder();
StringBuilder eq = null;
int lastCodePoint = -1;
String result;
i++;
charClass.append("[");
while(true) {
int c = normalizedPattern.codePointAt(i);
StringBuilder sequenceBuffer;
if (c == ']' && lastCodePoint != '\\') {
charClass.append((char)c);
break;
} else if (Character.getType(c) == Character.NON_SPACING_MARK) {
sequenceBuffer = new StringBuilder();
sequenceBuffer.appendCodePoint(lastCodePoint);
while(Character.getType(c) == Character.NON_SPACING_MARK) {
sequenceBuffer.appendCodePoint(c);
i += Character.charCount(c);
if (i >= normalizedPattern.length())
break;
c = normalizedPattern.codePointAt(i);
}
String ea = produceEquivalentAlternation(
sequenceBuffer.toString());
charClass.setLength(charClass.length()-Character.charCount(lastCodePoint));
if (eq == null)
eq = new StringBuilder();
eq.append('|');
eq.append(ea);
} else {
charClass.appendCodePoint(c);
i++;
}
if (i == normalizedPattern.length())
throw error(new String("Unclosed character class"));
lastCodePoint = c;
}
if (eq != null) {
result = new String("(?:"+charClass.toString()+eq.toString()+")");
} else {
result = charClass.toString();
}
newPattern.append(result);
return i;
}
private void normalize() {
boolean inCharClass = false;
int lastCodePoint = -1;
// Convert pattern into normalizedD form
normalizedPattern = Normalizer.normalize(pattern, Normalizer.Form.NFD);
patternLength = normalizedPattern.length();
// Modify pattern to match canonical equivalences
StringBuilder newPattern = new StringBuilder(patternLength);
for(int i=0; i<patternLength; ) {
int c = normalizedPattern.codePointAt(i);
StringBuilder sequenceBuffer;
if ((Character.getType(c) == Character.NON_SPACING_MARK)
&& (lastCodePoint != -1)) {
sequenceBuffer = new StringBuilder();
sequenceBuffer.appendCodePoint(lastCodePoint);
sequenceBuffer.appendCodePoint(c);
while(Character.getType(c) == Character.NON_SPACING_MARK) {
i += Character.charCount(c);
if (i >= patternLength)
break;
c = normalizedPattern.codePointAt(i);
sequenceBuffer.appendCodePoint(c);
}
String ea = produceEquivalentAlternation(
sequenceBuffer.toString());
newPattern.setLength(newPattern.length()-Character.charCount(lastCodePoint));
newPattern.append("(?:").append(ea).append(")");
} else if (c == '[' && lastCodePoint != '\\') {
i = normalizeCharClass(newPattern, i);
} else {
newPattern.appendCodePoint(c);
}
lastCodePoint = c;
i += Character.charCount(c);
}
normalizedPattern = newPattern.toString();
}
