public static bool ValidateSortRules(string rules, out string message)
{
Collator.CollationRuleErrorInfo errorInfo = Collator.CheckRules(LdmlCollationParser.ReplaceUnicodeEscapesForIcu(rules));
if (errorInfo != null)
{
message = string.Format("Invalid ICU rules (Line: {0}, Column: {1}).", errorInfo.Line, errorInfo.Offset);
return(false);
}
message = null;
return(true);
}