| %{ |
| /*========================================================================= |
| |
| Program: CMake - Cross-Platform Makefile Generator |
| Module: $RCSfile$ |
| Language: C++ |
| Date: $Date$ |
| Version: $Revision$ |
| |
| Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved. |
| See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details. |
| |
| This software is distributed WITHOUT ANY WARRANTY; without even |
| the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| PURPOSE. See the above copyright notices 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 "yyscanner" argument from these methods: |
| yy_fatal_error, yyalloc, yyrealloc, 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 "cmExprParserHelper.h" |
| |
| /* Disable some warnings. */ |
| #if defined(_MSC_VER) |
| # pragma warning ( disable : 4127 ) |
| # pragma warning ( disable : 4131 ) |
| # pragma warning ( disable : 4244 ) |
| # pragma warning ( disable : 4251 ) |
| # pragma warning ( disable : 4267 ) |
| # pragma warning ( disable : 4305 ) |
| # pragma warning ( disable : 4309 ) |
| # pragma warning ( disable : 4706 ) |
| # pragma warning ( disable : 4786 ) |
| #endif |
| |
| /* Disable features we do not need. */ |
| #define YY_NEVER_INTERACTIVE 1 |
| #undef ECHO /* SGI termios defines this differently. */ |
| #define ECHO |
| |
| /* 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" |
| |
| |
| #if defined( _WIN32 ) && !defined( __CYGWIN__ ) |
| /* Handle Windows properly */ |
| # include <io.h> |
| # if defined( _MSC_VER ) |
| # define isatty _isatty |
| # endif |
| # define YY_NO_UNISTD_H 1 |
| #endif |
| |
| /*--------------------------------------------------------------------------*/ |
| %} |
| |
| %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; } |
| |
| %% |