760 bool Pattern::parsePattern(StringRef PatternStr, StringRef Prefix,  in parsePattern()  argument
765   PatternLoc = SMLoc::getFromPointer(PatternStr.data());  in parsePattern()
769     while (!PatternStr.empty() &&  in parsePattern()
770            (PatternStr.back() == ' ' || PatternStr.back() == '\t'))  in parsePattern()
771       PatternStr = PatternStr.substr(0, PatternStr.size() - 1);  in parsePattern()
774   if (PatternStr.empty() && CheckTy != Check::CheckEmpty) {  in parsePattern()
780   if (!PatternStr.empty() && CheckTy == Check::CheckEmpty) {  in parsePattern()
795     FixedStr = PatternStr;  in parsePattern()
801       (PatternStr.size() < 2 ||  in parsePattern()
802        (!PatternStr.contains("{{") && !PatternStr.contains("[[")))) {  in parsePattern()
803     FixedStr = PatternStr;  in parsePattern()
819   while (!PatternStr.empty()) {  in parsePattern()
821     if (PatternStr.starts_with("{{")) {  in parsePattern()
823       size_t End = PatternStr.find("}}");  in parsePattern()
825         SM.PrintMessage(SMLoc::getFromPointer(PatternStr.data()),  in parsePattern()
835       bool HasAlternation = PatternStr.contains('|');  in parsePattern()
841       if (AddRegExToRegEx(PatternStr.substr(2, End - 2), CurParen, SM))  in parsePattern()
846       PatternStr = PatternStr.substr(End + 2);  in parsePattern()
860     if (PatternStr.starts_with("[[") && !PatternStr.starts_with("[[[")) {  in parsePattern()
861       StringRef UnparsedPatternStr = PatternStr.substr(2);  in parsePattern()
869         SM.PrintMessage(SMLoc::getFromPointer(PatternStr.data()),  in parsePattern()
877       PatternStr = UnparsedPatternStr.substr(End + 2);  in parsePattern()
1041         std::min(PatternStr.find("{{", 1), PatternStr.find("[[", 1));  in parsePattern()
1042     RegExStr += Regex::escape(PatternStr.substr(0, FixedMatchEnd));  in parsePattern()
1043     PatternStr = PatternStr.substr(FixedMatchEnd);  in parsePattern()