398 void Preprocessor::Directive(const TokenSequence &dir, Prescanner &prescanner) {  in Directive()  argument
399   std::size_t tokens{dir.SizeInTokens()};  in Directive()
400   std::size_t j{dir.SkipBlanks(0)};  in Directive()
404   if (dir.TokenAt(j).ToString() != "#") {  in Directive()
405     prescanner.Say(dir.GetTokenProvenanceRange(j), "missing '#'"_err_en_US);  in Directive()
408   j = dir.SkipBlanks(j + 1);  in Directive()
409   while (tokens > 0 && dir.TokenAt(tokens - 1).IsBlank()) {  in Directive()
415   if (IsDecimalDigit(dir.TokenAt(j)[0]) || dir.TokenAt(j)[0] == '"') {  in Directive()
419   std::string dirName{ToLowerCaseLetters(dir.TokenAt(dirOffset).ToString())};  in Directive()
420   j = dir.SkipBlanks(j + 1);  in Directive()
422   if (j < tokens && IsLegalIdentifierStart(dir.TokenAt(j)[0])) {  in Directive()
423     nameToken = dir.TokenAt(j);  in Directive()
429       prescanner.Say(dir.GetTokenProvenanceRange(j < tokens ? j : tokens - 1),  in Directive()
435     if (++j < tokens && dir.TokenAt(j).size() == 1 &&  in Directive()
436         dir.TokenAt(j)[0] == '(') {  in Directive()
437       j = dir.SkipBlanks(j + 1);  in Directive()
440       if (dir.TokenAt(j).ToString() != ")") {  in Directive()
442           std::string an{dir.TokenAt(j).ToString()};  in Directive()
447               prescanner.Say(dir.GetTokenProvenanceRange(j),  in Directive()
453           j = dir.SkipBlanks(j + 1);  in Directive()
455             prescanner.Say(dir.GetTokenProvenanceRange(tokens - 1),  in Directive()
459           std::string punc{dir.TokenAt(j).ToString()};  in Directive()
464             prescanner.Say(dir.GetTokenProvenanceRange(j),  in Directive()
468           j = dir.SkipBlanks(j + 1);  in Directive()
470             prescanner.Say(dir.GetTokenProvenanceRange(tokens - 1),  in Directive()
477           prescanner.Say(dir.GetTokenProvenance(dirOffset),  in Directive()
482       j = dir.SkipBlanks(j + 1);  in Directive()
484           nameToken, Definition{argName, dir, j, tokens - j, isVariadic}));  in Directive()
486       j = dir.SkipBlanks(j + 1);  in Directive()
488           std::make_pair(nameToken, Definition{dir, j, tokens - j}));  in Directive()
493           dir.GetIntervalProvenanceRange(dirOffset, tokens - dirOffset),  in Directive()
496       if (dir.IsAnythingLeft(++j)) {  in Directive()
497         prescanner.Say(dir.GetIntervalProvenanceRange(j, tokens - j),  in Directive()
507           dir.GetIntervalProvenanceRange(dirOffset, tokens - dirOffset),  in Directive()
510       if (dir.IsAnythingLeft(++j)) {  in Directive()
511         prescanner.Say(dir.GetIntervalProvenanceRange(j, tokens - j),  in Directive()
520           dir.GetTokenProvenance(dirOffset));  in Directive()
523     if (IsIfPredicateTrue(dir, j, tokens - j, prescanner)) {  in Directive()
527           dir.GetTokenProvenanceRange(dirOffset));  in Directive()
530     if (dir.IsAnythingLeft(j)) {  in Directive()
531       prescanner.Say(dir.GetIntervalProvenanceRange(j, tokens - j),  in Directive()
534       prescanner.Say(dir.GetTokenProvenanceRange(dirOffset),  in Directive()
537       prescanner.Say(dir.GetTokenProvenanceRange(dirOffset),  in Directive()
542           dir.GetTokenProvenanceRange(dirOffset));  in Directive()
546       prescanner.Say(dir.GetTokenProvenanceRange(dirOffset),  in Directive()
549       prescanner.Say(dir.GetTokenProvenanceRange(dirOffset),  in Directive()
554           dir.GetTokenProvenanceRange(dirOffset));  in Directive()
557     if (dir.IsAnythingLeft(j)) {  in Directive()
558       prescanner.Say(dir.GetIntervalProvenanceRange(j, tokens - j),  in Directive()
561       prescanner.Say(dir.GetTokenProvenanceRange(dirOffset),  in Directive()
568         dir.GetIntervalProvenanceRange(dirOffset, tokens - dirOffset),  in Directive()
569         "%s"_err_en_US, dir.ToString());  in Directive()
572         dir.GetIntervalProvenanceRange(dirOffset, tokens - dirOffset),  in Directive()
573         "%s"_warn_en_US, dir.ToString());  in Directive()
576         dir.GetIntervalProvenanceRange(dirOffset, tokens - dirOffset),  in Directive()
577         "%s"_en_US, dir.ToString());  in Directive()
581           dir.GetIntervalProvenanceRange(dirOffset, tokens - dirOffset),  in Directive()
587     if (dir.TokenAt(j).ToString() == "<") { // #include <foo>  in Directive()
590         prescanner.Say(dir.GetIntervalProvenanceRange(j, tokens - j),  in Directive()
594       while (k < tokens && dir.TokenAt(k) != ">") {  in Directive()
598         prescanner.Say(dir.GetIntervalProvenanceRange(j, tokens - j),  in Directive()
601       TokenSequence braced{dir, j + 1, k - j - 1};  in Directive()
604     } else if ((include = dir.TokenAt(j).ToString()).substr(0, 1) == "\"" &&  in Directive()
609       auto prov{dir.GetTokenProvenanceRange(dirOffset).start()};  in Directive()
614       prescanner.Say(dir.GetTokenProvenanceRange(j < tokens ? j : tokens - 1),  in Directive()
619       prescanner.Say(dir.GetTokenProvenanceRange(dirOffset),  in Directive()
623     j = dir.SkipBlanks(j + 1);  in Directive()
624     if (j < tokens && dir.TokenAt(j).ToString() != "!") {  in Directive()
625       prescanner.Say(dir.GetIntervalProvenanceRange(j, tokens - j),  in Directive()
633       prescanner.Say(dir.GetTokenProvenanceRange(dirOffset),  in Directive()
637           allSources_.AddIncludedFile(*included, dir.GetProvenanceRange())};  in Directive()
643     prescanner.Say(dir.GetTokenProvenanceRange(dirOffset),  in Directive()