/**
* Extracts IDD and plus sign to prefixBeforeNationalNumber when they are available, and places
* the remaining input into nationalNumber.
*
* @return true when accruedInputWithoutFormatting begins with the plus sign or valid IDD for
* defaultCountry.
*/
private boolean attemptToExtractIdd()
{
Pattern internationalPrefix =
regexCache.getPatternForRegex("\\" + PhoneNumberUtil.PLUS_SIGN + "|" +
currentMetadata.getInternationalPrefix());
Matcher iddMatcher = internationalPrefix.matcher(accruedInputWithoutFormatting);
if (iddMatcher.lookingAt())
{
isCompleteNumber = true;
int startOfCountryCallingCode = iddMatcher.end();
nationalNumber.setLength(0);
nationalNumber.append(accruedInputWithoutFormatting.substring(startOfCountryCallingCode));
prefixBeforeNationalNumber.setLength(0);
prefixBeforeNationalNumber.append(
accruedInputWithoutFormatting.substring(0, startOfCountryCallingCode));
if (accruedInputWithoutFormatting.charAt(0) != PhoneNumberUtil.PLUS_SIGN)
{
prefixBeforeNationalNumber.append(SEPARATOR_BEFORE_NATIONAL_NUMBER);
}
return(true);
}
return(false);
}
