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Diffstat (limited to 'Source/cmCommandArgumentParser.y')
| -rw-r--r-- | Source/cmCommandArgumentParser.y | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/Source/cmCommandArgumentParser.y b/Source/cmCommandArgumentParser.y new file mode 100644 index 0000000..05a0674 --- /dev/null +++ b/Source/cmCommandArgumentParser.y @@ -0,0 +1,220 @@ +%{ +/*========================================================================= + + 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 bison like this: + + bison --yacc --name-prefix=cmCommandArgument_yy --defines=cmCommandArgumentParserTokens.h -ocmCommandArgumentParser.cxx cmCommandArgumentParser.y + +Modify cmCommandArgumentParser.cxx: + - remove TABs + - add __HP_aCC to the #if test for yyerrorlab warning suppression + +*/ + +/* Configure the parser to use a lexer object. */ +#define YYPARSE_PARAM yyscanner +#define YYLEX_PARAM yyscanner +#define YYERROR_VERBOSE 1 +#define cmCommandArgument_yyerror(x) \ + cmCommandArgumentError(yyscanner, x) +#define yyGetParser (cmCommandArgument_yyget_extra(yyscanner)) + +/*-------------------------------------------------------------------------*/ +#include "cmCommandArgumentParserHelper.h" /* Interface to parser object. */ +#include "cmCommandArgumentLexer.h" /* Interface to lexer object. */ +#include "cmCommandArgumentParserTokens.h" /* Need YYSTYPE for YY_DECL. */ + +/* Forward declare the lexer entry point. */ +YY_DECL; + +/* Internal utility functions. */ +static void cmCommandArgumentError(yyscan_t yyscanner, const char* message); + +#define YYDEBUG 1 +#define YYMAXDEPTH 1000000 + + +#define calCheckEmpty(cnt) yyGetParser->CheckEmpty(__LINE__, cnt, yyvsp); +#define calElementStart(cnt) yyGetParser->PrepareElement(&yyval) +/* Disable some warnings in the generated code. */ +#ifdef __BORLANDC__ +# pragma warn -8004 /* Variable assigned a value that is not used. */ +#endif +#ifdef _MSC_VER +# pragma warning (disable: 4102) /* Unused goto label. */ +# pragma warning (disable: 4065) /* Switch statement contains default but no case. */ +#endif +%} + +/* Generate a reentrant parser object. */ +%pure_parser + +/* +%union { + char* string; +} +*/ + +/*-------------------------------------------------------------------------*/ +/* Tokens */ +%token cal_NCURLY +%token cal_DCURLY +%token cal_RCURLY +%token cal_NAME +%token cal_SYMBOL +%token cal_AT +%token cal_ERROR + +/*-------------------------------------------------------------------------*/ +/* grammar */ +%% + + +Start: +Goal +{ + calElementStart(1); + calCheckEmpty(1); + $<str>$ = 0; + yyGetParser->SetResult($<str>1); +} + +Goal: +String +{ + calElementStart(1); + calCheckEmpty(1); + $<str>$ = $<str>1; +} +| +String Goal +{ + calElementStart(2); + calCheckEmpty(2); + $<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2); +} + +String: +TextWithRCurly +{ + calElementStart(1); + calCheckEmpty(1); + $<str>$ = $<str>1; +} +| +Variable +{ + calElementStart(1); + calCheckEmpty(1); + $<str>$ = $<str>1; +} + +MultipleIds: +{ + calElementStart(0); + calCheckEmpty(0); +} +| +ID MultipleIds +{ + calElementStart(2); + calCheckEmpty(2); + $<str>$ = yyGetParser->CombineUnions($<str>1, $<str>2); +} + +ID: +Text +{ + calElementStart(1); + calCheckEmpty(1); + $<str>$ = $<str>1; +} +| +Variable +{ + calElementStart(1); + calCheckEmpty(1); + $<str>$ = $<str>1; +} + +Text: +cal_NAME +{ + calElementStart(1); + calCheckEmpty(1); + $<str>$ = $<str>1; +} +| +cal_SYMBOL +{ + calElementStart(1); + calCheckEmpty(1); + $<str>$ = $<str>1; +} + +TextWithRCurly: +Text +{ + calElementStart(1); + calCheckEmpty(1); + $<str>$ = $<str>1; +} +| +cal_RCURLY +{ + calElementStart(1); + calCheckEmpty(1); + $<str>$ = $<str>1; +} + +Variable: +cal_NCURLY MultipleIds cal_RCURLY +{ + calElementStart(3); + calCheckEmpty(3); + $<str>$ = yyGetParser->ExpandSpecialVariable($<str>1,$<str>2); + std::cerr << __LINE__ << " here: [" << $<str>1 << "] [" << $<str>2 << "] [" << $<str>3 << "]" << std::endl; +} +| +cal_DCURLY MultipleIds cal_RCURLY +{ + calElementStart(3); + calCheckEmpty(3); + $<str>$ = yyGetParser->ExpandVariable($<str>2); + std::cerr << __LINE__ << " here: [" << $<str>1 << "] [" << $<str>2 << "] [" << $<str>3 << "]" << std::endl; +} +| +cal_AT cal_NAME cal_AT +{ + calElementStart(3); + calCheckEmpty(3); + $<str>$ = yyGetParser->ExpandVariable($<str>2); +} + +%% +/* End of grammar */ + +/*--------------------------------------------------------------------------*/ +void cmCommandArgumentError(yyscan_t yyscanner, const char* message) +{ + yyGetParser->Error(message); +} + |