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251 lines
7.3 KiB
251 lines
7.3 KiB
%{
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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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/*-------------------------------------------------------------------------
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Portions of this source have been derived from makedepf90 version 2.8.8,
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Copyright (C) 2000--2006 Erik Edelmann <erik.edelmann@iki.fi>
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The code was originally distributed under the GPL but permission
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from the copyright holder has been obtained to distribute this
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derived work under the CMake license.
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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=cmFortran_yy
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--defines=cmFortranParserTokens.h
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-ocmFortranParser.cxx
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cmFortranParser.y
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Modify cmFortranParser.cxx:
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- "#if 0" out yyerrorlab block in range ["goto yyerrlab1", "yyerrlab1:"]
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*/
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#include "cmConfigure.h" // IWYU pragma: keep
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#include "cmsys/String.h"
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#include <stdlib.h>
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#include <string.h>
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/*-------------------------------------------------------------------------*/
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#define cmFortranParser_cxx
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#include "cmFortranParser.h" /* Interface to parser object. */
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#include "cmFortranParserTokens.h" /* Need YYSTYPE for YY_DECL. */
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/* Forward declare the lexer entry point. */
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YY_DECL;
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/* Helper function to forward error callback from parser. */
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static void cmFortran_yyerror(yyscan_t yyscanner, const char* message)
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{
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_Error(parser, message);
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}
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/* Disable some warnings in the generated code. */
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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 contains default but no case. */
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# pragma warning (disable: 4701) /* Local variable may not be initialized. */
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# pragma warning (disable: 4702) /* Unreachable code. */
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# pragma warning (disable: 4127) /* Conditional expression is constant. */
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# pragma warning (disable: 4244) /* Conversion to smaller type, data loss. */
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#endif
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#if defined(__GNUC__) && __GNUC__ >= 8
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# pragma GCC diagnostic ignored "-Wconversion"
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#endif
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%}
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/* Generate a reentrant parser object. */
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%define api.pure
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/* Configure the parser to use a lexer object. */
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%lex-param {yyscan_t yyscanner}
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%parse-param {yyscan_t yyscanner}
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%define parse.error verbose
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%union {
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char* string;
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}
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/*-------------------------------------------------------------------------*/
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/* Tokens */
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%token EOSTMT ASSIGNMENT_OP GARBAGE
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%token CPP_LINE_DIRECTIVE
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%token CPP_INCLUDE F90PPR_INCLUDE COCO_INCLUDE
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%token F90PPR_DEFINE CPP_DEFINE F90PPR_UNDEF CPP_UNDEF
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%token CPP_IFDEF CPP_IFNDEF CPP_IF CPP_ELSE CPP_ELIF CPP_ENDIF
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%token F90PPR_IFDEF F90PPR_IFNDEF F90PPR_IF
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%token F90PPR_ELSE F90PPR_ELIF F90PPR_ENDIF
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%token COMMA COLON DCOLON LPAREN RPAREN
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%token <number> UNTERMINATED_STRING
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%token <string> STRING WORD
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%token <string> CPP_INCLUDE_ANGLE
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%token END
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%token INCLUDE
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%token INTERFACE
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%token MODULE
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%token SUBMODULE
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%token USE
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/*-------------------------------------------------------------------------*/
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/* grammar */
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%%
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code: /* empty */ | code stmt;
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stmt:
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INTERFACE EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_SetInInterface(parser, true);
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}
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| USE WORD other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleUse(parser, $2);
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free($2);
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}
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| MODULE WORD other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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if (cmsysString_strcasecmp($2, "function") != 0 &&
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cmsysString_strcasecmp($2, "procedure") != 0 &&
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cmsysString_strcasecmp($2, "subroutine") != 0) {
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cmFortranParser_RuleModule(parser, $2);
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}
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free($2);
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}
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| SUBMODULE LPAREN WORD RPAREN WORD other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleSubmodule(parser, $3, $5);
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free($3);
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free($5);
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}
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| SUBMODULE LPAREN WORD COLON WORD RPAREN WORD other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleSubmoduleNested(parser, $3, $5, $7);
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free($3);
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free($5);
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free($7);
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}
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| INTERFACE WORD other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_SetInInterface(parser, true);
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free($2);
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}
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| END INTERFACE other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_SetInInterface(parser, false);
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}
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| USE DCOLON WORD other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleUse(parser, $3);
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free($3);
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}
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| USE COMMA WORD DCOLON WORD other EOSTMT {
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if (cmsysString_strcasecmp($3, "non_intrinsic") == 0) {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleUse(parser, $5);
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}
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free($3);
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free($5);
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}
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| INCLUDE STRING other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleInclude(parser, $2);
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free($2);
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}
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| CPP_LINE_DIRECTIVE STRING other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleLineDirective(parser, $2);
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free($2);
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}
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| CPP_INCLUDE_ANGLE other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleInclude(parser, $1);
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free($1);
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}
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| include STRING other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleInclude(parser, $2);
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free($2);
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}
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| define WORD other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleDefine(parser, $2);
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free($2);
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}
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| undef WORD other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleUndef(parser, $2);
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free($2);
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}
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| ifdef WORD other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleIfdef(parser, $2);
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free($2);
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}
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| ifndef WORD other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleIfndef(parser, $2);
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free($2);
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}
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| if other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleIf(parser);
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}
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| elif other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleElif(parser);
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}
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| else other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleElse(parser);
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}
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| endif other EOSTMT {
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cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
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cmFortranParser_RuleEndif(parser);
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}
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| EOSTMT
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| error EOSTMT /* tolerate unknown statements until their end */
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;
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include: CPP_INCLUDE | F90PPR_INCLUDE | COCO_INCLUDE ;
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define: CPP_DEFINE | F90PPR_DEFINE;
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undef: CPP_UNDEF | F90PPR_UNDEF ;
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ifdef: CPP_IFDEF | F90PPR_IFDEF ;
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ifndef: CPP_IFNDEF | F90PPR_IFNDEF ;
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if: CPP_IF | F90PPR_IF ;
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elif: CPP_ELIF | F90PPR_ELIF ;
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else: CPP_ELSE | F90PPR_ELSE ;
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endif: CPP_ENDIF | F90PPR_ENDIF ;
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other: /* empty */ | other misc_code ;
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misc_code:
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WORD { free ($1); }
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| END
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| INCLUDE
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| INTERFACE
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| MODULE
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| SUBMODULE
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| USE
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| STRING { free ($1); }
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| GARBAGE
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| ASSIGNMENT_OP
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| COLON
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| DCOLON
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| LPAREN
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| RPAREN
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| COMMA
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| UNTERMINATED_STRING
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;
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%%
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/* End of grammar */
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