| %{ |
| /*============================================================================ |
| CMake - Cross Platform Makefile Generator |
| Copyright 2000-2009 Kitware, Inc., Insight Software Consortium |
| |
| Distributed under the OSI-approved BSD License (the "License"); |
| see accompanying file Copyright.txt for details. |
| |
| This software is distributed WITHOUT ANY WARRANTY; without even the |
| implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| See the License for more information. |
| ============================================================================*/ |
| /* |
| |
| This file must be translated to C and modified to build everywhere. |
| |
| Run flex like this: |
| |
| flex --prefix=cmExpr_yy --header-file=cmExprLexer.h -ocmExprLexer.cxx cmExprLexer.in.l |
| |
| Modify cmExprLexer.cxx: |
| - remove TABs |
| - remove use of the 'register' storage class specifier |
| - remove "yyscanner" argument from these methods: |
| yy_fatal_error, cmExpr_yyalloc, cmExpr_yyrealloc, cmExpr_yyfree |
| - remove all YY_BREAK lines occurring right after return statements |
| - change while ( 1 ) to for(;;) |
| |
| Modify cmExprLexer.h: |
| - remove TABs |
| - remove the yy_init_globals function |
| - remove the block that includes unistd.h |
| - remove #line directives (avoids bogus warning on old Sun) |
| |
| */ |
| |
| #include "cmStandardLexer.h" |
| |
| #include "cmExprParserHelper.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 "cmExprParserTokens.h" |
| |
| /*--------------------------------------------------------------------------*/ |
| %} |
| |
| %option reentrant |
| %option noyywrap |
| %pointer |
| |
| %% |
| |
| [0-9][0-9]* { yylvalp->Number = atoi(yytext); 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; } |
| |
| %% |