public NumberFormat mergeFrom(NumberFormat other)
{
if (other.HasPattern())
{
setPattern(other.getPattern());
}
if (other.HasFormat())
{
setFormat(other.getFormat());
}
int leadingDigitsPatternSize = other.leadingDigitsPatternSize();
for (int i = 0; i < leadingDigitsPatternSize; i++)
{
addLeadingDigitsPattern(other.getLeadingDigitsPattern(i));
}
if (other.HasNationalPrefixFormattingRule())
{
setNationalPrefixFormattingRule(other.getNationalPrefixFormattingRule());
}
if (other.HasDomesticCarrierCodeFormattingRule())
{
setDomesticCarrierCodeFormattingRule(other.getDomesticCarrierCodeFormattingRule());
}
setNationalPrefixOptionalWhenFormatting(other.isNationalPrefixOptionalWhenFormatting());
return(this);
}
internal static bool isNationalPrefixPresentIfRequired(PhoneNumber number, PhoneNumberUtil util)
{
// First, check how we deduced the country code. If it was written in international format, then
// the national prefix is not required.
if (number.getCountryCodeSource() != PhoneNumber.CountryCodeSource.FROM_DEFAULT_COUNTRY)
{
return(true);
}
String phoneNumberRegion =
util.getRegionCodeForCountryCode(number.getCountryCode());
PhoneMetadata metadata = util.getMetadataForRegion(phoneNumberRegion);
if (metadata == null)
{
return(true);
}
// Check if a national prefix should be present when formatting this number.
String nationalNumber = util.getNationalSignificantNumber(number);
NumberFormat formatRule =
util.chooseFormattingRegexForNumber(metadata.numberFormats(), nationalNumber);
// To do this, we check that a national prefix formatting rule was present and that it wasn't
// just the first-group symbol ($1) with punctuation.
if ((formatRule != null) && formatRule.getNationalPrefixFormattingRule().Length > 0)
{
if (formatRule.isNationalPrefixOptionalWhenFormatting())
{
// The national-prefix is optional in these cases, so we don't need to check if it was
// present.
return(true);
}
if (PhoneNumberUtil.formattingRuleHasFirstGroupOnly(
formatRule.getNationalPrefixFormattingRule()))
{
// National Prefix not needed for this number.
return(true);
}
// Normalize the remainder.
String rawInputCopy = PhoneNumberUtil.normalizeDigitsOnly(number.getRawInput());
StringBuilder rawInput = new StringBuilder(rawInputCopy);
// Check if we found a national prefix and/or carrier code at the start of the raw input, and
// return the result.
return(util.maybeStripNationalPrefixAndCarrierCode(rawInput, metadata, null));
}
return(true);
}