| %{ |
| /* Distributed under the OSI-approved BSD 3-Clause License. See accompanying |
| file Copyright.txt or https://cmake.org/licensing for details. */ |
| /* |
| |
| This file must be translated to C++ and modified to build everywhere. |
| |
| Run flex >= 2.6 like this: |
| |
| flex --nounistd -DFLEXINT_H --noline --header-file=cmCommandArgumentLexer.h -ocmCommandArgumentLexer.cxx cmCommandArgumentLexer.in.l |
| |
| Modify cmCommandArgumentLexer.cxx: |
| - remove trailing whitespace: sed -i 's/\s*$//' cmCommandArgumentLexer.h cmCommandArgumentLexer.cxx |
| - remove blank lines at end of file: sed -i '${/^$/d;}' cmCommandArgumentLexer.h cmCommandArgumentLexer.cxx |
| - #include "cmStandardLexer.h" at the top: sed -i '1i#include "cmStandardLexer.h"' cmCommandArgumentLexer.cxx |
| |
| */ |
| |
| /* IWYU pragma: no_forward_declare yyguts_t */ |
| |
| #include "cmCommandArgumentParserHelper.h" |
| |
| /* Replace the lexer input function. */ |
| #undef YY_INPUT |
| #define YY_INPUT(buf, result, max_size) \ |
| { result = yyextra->LexInput(buf, max_size); } |
| |
| /* Include the set of tokens from the parser. */ |
| #include "cmCommandArgumentParserTokens.h" |
| |
| static const char *DCURLYVariable = "${"; |
| static const char *RCURLYVariable = "}"; |
| static const char *ATVariable = "@"; |
| static const char *DOLLARVariable = "$"; |
| static const char *LCURLYVariable = "{"; |
| static const char *BSLASHVariable = "\\"; |
| |
| /*--------------------------------------------------------------------------*/ |
| %} |
| |
| %option prefix="cmCommandArgument_yy" |
| |
| %option reentrant |
| %option noyywrap |
| %option nounput |
| %pointer |
| %s ESCAPES |
| %s NOESCAPES |
| |
| %% |
| |
| \$ENV\{ { |
| //std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl; |
| yyextra->AllocateParserType(yylvalp, yytext+1, strlen(yytext)-2); |
| return cal_ENVCURLY; |
| } |
| |
| \$[A-Za-z0-9/_.+-]+\{ { |
| //std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl; |
| yyextra->AllocateParserType(yylvalp, yytext+1, strlen(yytext)-2); |
| return cal_NCURLY; |
| } |
| |
| @[A-Za-z0-9/_.+-]+@ { |
| //std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl; |
| yyextra->AllocateParserType(yylvalp, yytext+1, strlen(yytext)-2); |
| return cal_ATNAME; |
| } |
| |
| "${" { |
| //std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl; |
| //yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext)); |
| yylvalp->str = DCURLYVariable; |
| return cal_DCURLY; |
| } |
| |
| "}" { |
| //std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl; |
| //yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext)); |
| yylvalp->str = RCURLYVariable; |
| return cal_RCURLY; |
| } |
| |
| "@" { |
| //std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl; |
| //yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext)); |
| yylvalp->str = ATVariable; |
| return cal_AT; |
| } |
| |
| [A-Za-z0-9/_.+-]+ { |
| //std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl; |
| yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext)); |
| return cal_NAME; |
| } |
| |
| <ESCAPES>\\. { |
| if ( !yyextra->HandleEscapeSymbol(yylvalp, *(yytext+1)) ) |
| { |
| return cal_ERROR; |
| } |
| return cal_SYMBOL; |
| } |
| |
| [^\${}\\@]+ { |
| //std::cerr << __LINE__ << " here: [" << yytext << "]" << std::endl; |
| yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext)); |
| return cal_SYMBOL; |
| } |
| |
| "$" { |
| //yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext)); |
| yylvalp->str = DOLLARVariable; |
| return cal_DOLLAR; |
| } |
| |
| "{" { |
| //yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext)); |
| yylvalp->str = LCURLYVariable; |
| return cal_LCURLY; |
| } |
| |
| <ESCAPES>"\\" { |
| //yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext)); |
| yylvalp->str = BSLASHVariable; |
| return cal_BSLASH; |
| } |
| |
| <NOESCAPES>"\\" { |
| //yyextra->AllocateParserType(yylvalp, yytext, strlen(yytext)); |
| yylvalp->str = BSLASHVariable; |
| return cal_SYMBOL; |
| } |
| |
| %% |
| |
| /*--------------------------------------------------------------------------*/ |
| void cmCommandArgument_SetupEscapes(yyscan_t yyscanner, bool noEscapes) |
| { |
| /* Hack into the internal flex-generated scanner to set the state. */ |
| struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; |
| if(noEscapes) { |
| BEGIN(NOESCAPES); |
| } else { |
| BEGIN(ESCAPES); |
| } |
| } |