| %{ |
| /* 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=cmExprLexer.h -ocmExprLexer.cxx cmExprLexer.in.l |
| |
| Modify cmExprLexer.cxx: |
| - remove trailing whitespace: sed -i 's/\s*$//' cmExprLexer.h cmExprLexer.cxx |
| - remove blank lines at end of file: sed -i '${/^$/d;}' cmExprLexer.h cmExprLexer.cxx |
| - #include "cmStandardLexer.h" at the top: sed -i '1i#include "cmStandardLexer.h"' cmExprLexer.cxx |
| |
| */ |
| |
| /* IWYU pragma: no_forward_declare yyguts_t */ |
| |
| #ifndef __clang_analyzer__ /* Suppress clang scan-build warnings */ |
| |
| #include "cmExprParserHelper.h" |
| |
| /* Replace the lexer input function. */ |
| #undef YY_INPUT |
| #define YY_INPUT(buf, result, max_size) \ |
| do { result = yyextra->LexInput(buf, max_size); } while (0) |
| |
| /* Include the set of tokens from the parser. */ |
| #include "cmExprParserTokens.h" |
| |
| #include <string> |
| |
| /*--------------------------------------------------------------------------*/ |
| %} |
| |
| %option prefix="cmExpr_yy" |
| |
| %option reentrant |
| %option noyywrap |
| %pointer |
| |
| %% |
| [ \t] {} |
| |
| [0-9][0-9]* { yylvalp->Number = std::stoll(yytext, nullptr, 10); return exp_NUMBER; } |
| 0[xX][0-9a-fA-F][0-9a-fA-F]* { yylvalp->Number = std::stoll(yytext, nullptr, 16); return exp_NUMBER; } |
| |
| "+" { return exp_PLUS; } |
| "-" { return exp_MINUS; } |
| "*" { return exp_TIMES; } |
| "/" { return exp_DIVIDE; } |
| "%" { return exp_MOD; } |
| "\|" { return exp_OR; } |
| "&" { return exp_AND; } |
| "^" { return exp_XOR; } |
| "~" { return exp_NOT; } |
| "<<" { return exp_SHIFTLEFT; } |
| ">>" { return exp_SHIFTRIGHT; } |
| "(" { return exp_OPENPARENT; } |
| ")" { return exp_CLOSEPARENT; } |
| . { yyextra->UnexpectedChar(yytext[0]); } |
| |
| %% |
| |
| /*--------------------------------------------------------------------------*/ |
| |
| #endif /* __clang_analyzer__ */ |