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Diffstat (limited to 'Source/cmFortranParser.y')
| -rw-r--r-- | Source/cmFortranParser.y | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/Source/cmFortranParser.y b/Source/cmFortranParser.y new file mode 100644 index 0000000..996bef6 --- /dev/null +++ b/Source/cmFortranParser.y @@ -0,0 +1,279 @@ +%{ +/*============================================================================ + 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. +============================================================================*/ +/*------------------------------------------------------------------------- + Portions of this source have been derived from makedepf90 version 2.8.8, + + Copyright (C) 2000--2006 Erik Edelmann <erik.edelmann@iki.fi> + + The code was originally distributed under the GPL but permission + from the copyright holder has been obtained to distribute this + derived work under the CMake license. +-------------------------------------------------------------------------*/ + +/* + +This file must be translated to C and modified to build everywhere. + +Run bison like this: + + bison --yacc --name-prefix=cmFortran_yy + --defines=cmFortranParserTokens.h + -ocmFortranParser.cxx + cmFortranParser.y + +Modify cmFortranParser.cxx: + - "#if 0" out yyerrorlab block in range ["goto yyerrlab1", "yyerrlab1:"] +*/ + +/*-------------------------------------------------------------------------*/ +#define cmFortranParser_cxx +#include "cmFortranParser.h" /* Interface to parser object. */ +#include "cmFortranParserTokens.h" /* Need YYSTYPE for YY_DECL. */ + +#include <cmsys/String.h> + +/* Forward declare the lexer entry point. */ +YY_DECL; + +/* Helper function to forward error callback from parser. */ +static void cmFortran_yyerror(yyscan_t yyscanner, const char* message) +{ + cmFortranParser* parser = cmFortran_yyget_extra(yyscanner); + cmFortranParser_Error(parser, message); +} + +static bool cmFortranParserIsKeyword(const char* word, + const char* keyword) +{ + return cmsysString_strcasecmp(word, keyword) == 0; +} + +/* Disable some warnings in the generated code. */ +#ifdef _MSC_VER +# pragma warning (disable: 4102) /* Unused goto label. */ +# pragma warning (disable: 4065) /* Switch contains default but no case. */ +# pragma warning (disable: 4701) /* Local variable may not be initialized. */ +# pragma warning (disable: 4702) /* Unreachable code. */ +# pragma warning (disable: 4127) /* Conditional expression is constant. */ +# pragma warning (disable: 4244) /* Conversion to smaller type, data loss. */ +#endif +%} + +/* Generate a reentrant parser object. */ +%define api.pure + +/* Configure the parser to use a lexer object. */ +%lex-param {yyscan_t yyscanner} +%parse-param {yyscan_t yyscanner} + +%define parse.error verbose + +%union { + char* string; +} + +/*-------------------------------------------------------------------------*/ +/* Tokens */ +%token EOSTMT ASSIGNMENT_OP GARBAGE +%token CPP_INCLUDE F90PPR_INCLUDE COCO_INCLUDE +%token F90PPR_DEFINE CPP_DEFINE F90PPR_UNDEF CPP_UNDEF +%token CPP_IFDEF CPP_IFNDEF CPP_IF CPP_ELSE CPP_ELIF CPP_ENDIF +%token F90PPR_IFDEF F90PPR_IFNDEF F90PPR_IF +%token F90PPR_ELSE F90PPR_ELIF F90PPR_ENDIF +%token COMMA DCOLON +%token <string> CPP_TOENDL +%token <number> UNTERMINATED_STRING +%token <string> STRING WORD +%token <string> CPP_INCLUDE_ANGLE + +/*-------------------------------------------------------------------------*/ +/* grammar */ +%% + +code: /* empty */ | code stmt; + +stmt: keyword_stmt | assignment_stmt; + +assignment_stmt: WORD ASSIGNMENT_OP other EOSTMT /* Ignore */ + { + free($1); + } + +keyword_stmt: + WORD EOSTMT + { + if (cmFortranParserIsKeyword($1, "interface")) + { + cmFortranParser* parser = + cmFortran_yyget_extra(yyscanner); + cmFortranParser_SetInInterface(parser, true); + } + free($1); + } +| WORD WORD other EOSTMT + { + if (cmFortranParserIsKeyword($1, "use")) + { + cmFortranParser* parser = + cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleUse(parser, $2); + } + else if (cmFortranParserIsKeyword($1, "module")) + { + cmFortranParser* parser = + cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleModule(parser, $2); + } + else if (cmFortranParserIsKeyword($1, "interface")) + { + cmFortranParser* parser = + cmFortran_yyget_extra(yyscanner); + cmFortranParser_SetInInterface(parser, true); + } + else if (cmFortranParserIsKeyword($2, "interface") && + cmFortranParserIsKeyword($1, "end")) + { + cmFortranParser* parser = + cmFortran_yyget_extra(yyscanner); + cmFortranParser_SetInInterface(parser, false); + } + free($1); + free($2); + } +| WORD DCOLON WORD other EOSTMT + { + if (cmFortranParserIsKeyword($1, "use")) + { + cmFortranParser* parser = + cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleUse(parser, $3); + } + free($1); + free($3); + } +| WORD COMMA WORD DCOLON WORD other EOSTMT + { + if (cmFortranParserIsKeyword($1, "use") && + cmFortranParserIsKeyword($3, "non_intrinsic") ) + { + cmFortranParser* parser = + cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleUse(parser, $5); + } + free($1); + free($3); + free($5); + } +| WORD STRING other EOSTMT /* Ignore */ + { + if (cmFortranParserIsKeyword($1, "include")) + { + cmFortranParser* parser = + cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleInclude(parser, $2); + } + free($1); + free($2); + } +| CPP_INCLUDE_ANGLE other EOSTMT + { + cmFortranParser* parser = + cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleInclude(parser, $1); + free($1); + } +| include STRING other EOSTMT + { + cmFortranParser* parser = + cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleInclude(parser, $2); + free($2); + } +| define WORD other EOSTMT + { + cmFortranParser* parser = cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleDefine(parser, $2); + free($2); + } +| undef WORD other EOSTMT + { + cmFortranParser* parser = cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleUndef(parser, $2); + free($2); + } +| ifdef WORD other EOSTMT + { + cmFortranParser* parser = cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleIfdef(parser, $2); + free($2); + } +| ifndef WORD other EOSTMT + { + cmFortranParser* parser = cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleIfndef(parser, $2); + free($2); + } +| if other EOSTMT + { + cmFortranParser* parser = cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleIf(parser); + } +| elif other EOSTMT + { + cmFortranParser* parser = cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleElif(parser); + } +| else other EOSTMT + { + cmFortranParser* parser = cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleElse(parser); + } +| endif other EOSTMT + { + cmFortranParser* parser = cmFortran_yyget_extra(yyscanner); + cmFortranParser_RuleEndif(parser); + } +| WORD GARBAGE other EOSTMT /* Ignore */ + { + free($1); + } +| GARBAGE other EOSTMT +| EOSTMT +| error +; + + + +include: CPP_INCLUDE | F90PPR_INCLUDE | COCO_INCLUDE ; +define: CPP_DEFINE | F90PPR_DEFINE; +undef: CPP_UNDEF | F90PPR_UNDEF ; +ifdef: CPP_IFDEF | F90PPR_IFDEF ; +ifndef: CPP_IFNDEF | F90PPR_IFNDEF ; +if: CPP_IF | F90PPR_IF ; +elif: CPP_ELIF | F90PPR_ELIF ; +else: CPP_ELSE | F90PPR_ELSE ; +endif: CPP_ENDIF | F90PPR_ENDIF ; +other: /* empty */ | other misc_code ; + +misc_code: + WORD { free ($1); } +| STRING { free ($1); } +| GARBAGE +| ASSIGNMENT_OP +| DCOLON +| COMMA +| UNTERMINATED_STRING +; + +%% +/* End of grammar */ |