mirror of
https://github.com/reactos/CMake.git
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96afb12087
This converts the CMake license to a pure 3-clause OSI-approved BSD License. We drop the previous license clause requiring modified versions to be plainly marked. We also update the CMake copyright to cover the full development time range.
170 lines
3.9 KiB
Plaintext
170 lines
3.9 KiB
Plaintext
%{
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/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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/*
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This file must be translated to C and modified to build everywhere.
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Run bison like this:
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bison --yacc --name-prefix=cmExpr_yy --defines=cmExprParserTokens.h -ocmExprParser.cxx cmExprParser.y
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Modify cmExprParser.cxx:
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- remove TABs
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- add __HP_aCC to the #if test for yyerrorlab warning suppression
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*/
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/* Configure the parser to use a lexer object. */
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#define YYPARSE_PARAM yyscanner
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#define YYLEX_PARAM yyscanner
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#define YYERROR_VERBOSE 1
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#define cmExpr_yyerror(x) \
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cmExprError(yyscanner, x)
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#define yyGetParser (cmExpr_yyget_extra(yyscanner))
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/*-------------------------------------------------------------------------*/
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#include "cmExprParserHelper.h" /* Interface to parser object. */
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#include "cmExprLexer.h" /* Interface to lexer object. */
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#include "cmExprParserTokens.h" /* Need YYSTYPE for YY_DECL. */
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#include <math.h>
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/* Forward declare the lexer entry point. */
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YY_DECL;
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/* Internal utility functions. */
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static void cmExprError(yyscan_t yyscanner, const char* message);
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#define YYDEBUG 1
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//#define YYMAXDEPTH 100000
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//#define YYINITDEPTH 10000
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/* Disable some warnings in the generated code. */
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#ifdef __BORLANDC__
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# pragma warn -8004 /* Variable assigned a value that is not used. */
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# pragma warn -8008 /* condition always returns true */
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# pragma warn -8060 /* possibly incorrect assignment */
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# pragma warn -8066 /* unreachable code */
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#endif
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#ifdef _MSC_VER
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# pragma warning (disable: 4102) /* Unused goto label. */
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# pragma warning (disable: 4065) /* Switch statement contains default but no case. */
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#endif
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%}
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/* Generate a reentrant parser object. */
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%pure_parser
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/*-------------------------------------------------------------------------*/
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/* Tokens */
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%token exp_PLUS
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%token exp_MINUS
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%token exp_TIMES
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%token exp_DIVIDE
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%token exp_MOD
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%token exp_SHIFTLEFT
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%token exp_SHIFTRIGHT
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%token exp_OPENPARENT
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%token exp_CLOSEPARENT
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%token exp_OR;
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%token exp_AND;
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%token exp_XOR;
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%token exp_NOT;
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%token exp_NUMBER;
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/*-------------------------------------------------------------------------*/
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/* grammar */
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%%
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Start:
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exp
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{
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yyGetParser->SetResult($<Number>1);
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}
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exp:
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bitwiseor
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{$<Number>$ = $<Number>1;}
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exp exp_OR bitwiseor
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{$<Number>$ = $<Number>1 | $<Number>3;}
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bitwiseor:
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bitwisexor
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{$<Number>$ = $<Number>1;}
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bitwiseor exp_XOR bitwisexor
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{$<Number>$ = $<Number>1 ^ $<Number>3;}
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bitwisexor:
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bitwiseand
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{$<Number>$ = $<Number>1;}
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bitwisexor exp_AND bitwiseand
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{$<Number>$ = $<Number>1 & $<Number>3;}
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bitwiseand:
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shift
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{$<Number>$ = $<Number>1;}
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bitwiseand exp_SHIFTLEFT shift
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{$<Number>$ = $<Number>1 << $<Number>3;}
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bitwiseand exp_SHIFTRIGHT shift
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{$<Number>$ = $<Number>1 >> $<Number>3;}
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shift:
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term
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{$<Number>$ = $<Number>1;}
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shift exp_PLUS term
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{$<Number>$ = $<Number>1 + $<Number>3;}
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shift exp_MINUS term
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{$<Number>$ = $<Number>1 - $<Number>3;}
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term:
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factor
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{$<Number>$ = $<Number>1;}
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term exp_TIMES factor
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{$<Number>$ = $<Number>1 * $<Number>3;}
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term exp_DIVIDE factor
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{$<Number>$ = $<Number>1 / $<Number>3;}
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term exp_MOD factor
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{$<Number>$ = $<Number>1 % $<Number>3;}
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factor:
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exp_NUMBER
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{$<Number>$ = $<Number>1;}
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exp_OPENPARENT exp exp_CLOSEPARENT
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{$<Number>$ = $<Number>2;}
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;
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%%
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/* End of grammar */
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/*--------------------------------------------------------------------------*/
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void cmExprError(yyscan_t yyscanner, const char* message)
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{
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yyGetParser->Error(message);
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}
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