private void narrowDownPossibleFormats(String leadingDigits)
{
int indexOfLeadingDigitsPattern = leadingDigits.length() - MIN_LEADING_DIGITS_LENGTH;
Iterator <NumberFormat> it = possibleFormats.iterator();
while (it.hasNext())
{
NumberFormat format = it.next();
if (format.leadingDigitsPatternSize() > indexOfLeadingDigitsPattern)
{
Pattern leadingDigitsPattern =
regexCache.getPatternForRegex(
format.getLeadingDigitsPattern(indexOfLeadingDigitsPattern));
Matcher m = leadingDigitsPattern.matcher(leadingDigits);
if (!m.lookingAt())
{
it.remove();
}
} // else the particular format has no more specific leadingDigitsPattern, and it should be
// retained.
}
}
[TestMethod] public void testRegexInsertion()
{
String regex1 = "[1-5]";
String regex2 = "(?:12|34)";
String regex3 = "[1-3][58]";
regexCache.getPatternForRegex(regex1);
assertTrue(regexCache.containsRegex(regex1));
regexCache.getPatternForRegex(regex2);
assertTrue(regexCache.containsRegex(regex2));
assertTrue(regexCache.containsRegex(regex1));
regexCache.getPatternForRegex(regex1);
assertTrue(regexCache.containsRegex(regex1));
regexCache.getPatternForRegex(regex3);
assertTrue(regexCache.containsRegex(regex3));
assertFalse(regexCache.containsRegex(regex2));
assertTrue(regexCache.containsRegex(regex1));
}