Formats the specified 64-bit number using the named ruleset.

Parameters:

	number	The number to format.
	ruleSetName	The name of the rule set to format the number with. This must be the name of a valid public rule set for this formatter.
	toAppendTo	the string that will hold the (appended) result
	pos	the fieldposition
	status	the status

Returns:

A textual representation of the number. ICU 2.1

Definition at line 1097 of file rbnf.cpp.

References UnicodeString::indexOf(), UnicodeString::length(), U_ILLEGAL_ARGUMENT_ERROR, and U_SUCCESS.

{
    if (U_SUCCESS(status)) {
        if (ruleSetName.indexOf(gPercentPercent) == 0) {
            // throw new IllegalArgumentException("Can't use internal rule set");
            status = U_ILLEGAL_ARGUMENT_ERROR;
        } else {
            NFRuleSet *rs = findRuleSet(ruleSetName, status);
            if (rs) {
                rs->format(number, toAppendTo, toAppendTo.length());
            }
        }
    }
    return toAppendTo;
}