850 FormatDiagnostic(const char *DiagStr, const char *DiagEnd,  in FormatDiagnostic()  argument
855   if (DiagEnd - DiagStr == 2 && StringRef(DiagStr, DiagEnd - DiagStr) == "%0" &&  in FormatDiagnostic()
877   while (DiagStr != DiagEnd) {  in FormatDiagnostic()
878     if (DiagStr[0] != '%') {  in FormatDiagnostic()
880       const char *StrEnd = std::find(DiagStr, DiagEnd, '%');  in FormatDiagnostic()
881       OutStr.append(DiagStr, StrEnd);  in FormatDiagnostic()
882       DiagStr = StrEnd;  in FormatDiagnostic()
884     } else if (isPunctuation(DiagStr[1])) {  in FormatDiagnostic()
885       OutStr.push_back(DiagStr[1]);  // %% -> %.  in FormatDiagnostic()
886       DiagStr += 2;  in FormatDiagnostic()
891     ++DiagStr;  in FormatDiagnostic()
902     if (!isDigit(DiagStr[0])) {  in FormatDiagnostic()
903       Modifier = DiagStr;  in FormatDiagnostic()
904       while (DiagStr[0] == '-' ||  in FormatDiagnostic()
905              (DiagStr[0] >= 'a' && DiagStr[0] <= 'z'))  in FormatDiagnostic()
906         ++DiagStr;  in FormatDiagnostic()
907       ModifierLen = DiagStr-Modifier;  in FormatDiagnostic()
910       if (DiagStr[0] == '{') {  in FormatDiagnostic()
911         ++DiagStr; // Skip {.  in FormatDiagnostic()
912         Argument = DiagStr;  in FormatDiagnostic()
914         DiagStr = ScanFormat(DiagStr, DiagEnd, '}');  in FormatDiagnostic()
915         assert(DiagStr != DiagEnd && "Mismatched {}'s in diagnostic string!");  in FormatDiagnostic()
916         ArgumentLen = DiagStr-Argument;  in FormatDiagnostic()
917         ++DiagStr;  // Skip }.  in FormatDiagnostic()
921     assert(isDigit(*DiagStr) && "Invalid format for argument in diagnostic");  in FormatDiagnostic()
922     unsigned ArgNo = *DiagStr++ - '0';  in FormatDiagnostic()
929       assert(*DiagStr == ',' && isDigit(*(DiagStr + 1)) &&  in FormatDiagnostic()
931       ++DiagStr;  // Comma.  in FormatDiagnostic()
932       ArgNo2 = *DiagStr++ - '0';  in FormatDiagnostic()