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|
%{
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
/*-------------------------------------------------------------------------
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:"]
*/
#include "cmConfigure.h" // IWYU pragma: keep
#include "cmsys/String.h"
#include <stdlib.h>
#include <string.h>
/*-------------------------------------------------------------------------*/
#define cmFortranParser_cxx
#include "cmFortranParser.h" /* Interface to parser object. */
#include "cmFortranParserTokens.h" /* Need YYSTYPE for YY_DECL. */
/* 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);
}
/* 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_LINE_DIRECTIVE
%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 COLON DCOLON LPAREN RPAREN
%token <number> UNTERMINATED_STRING
%token <string> STRING WORD
%token <string> CPP_INCLUDE_ANGLE
%token END
%token INCLUDE
%token INTERFACE
%token MODULE
%token SUBMODULE
%token USE
/*-------------------------------------------------------------------------*/
/* grammar */
%%
code: /* empty */ | code stmt;
stmt:
INTERFACE EOSTMT {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
cmFortranParser_SetInInterface(parser, true);
}
| USE WORD other EOSTMT {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
cmFortranParser_RuleUse(parser, $2);
free($2);
}
| MODULE WORD other EOSTMT {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
if (cmsysString_strcasecmp($2, "function") != 0 &&
cmsysString_strcasecmp($2, "procedure") != 0 &&
cmsysString_strcasecmp($2, "subroutine") != 0) {
cmFortranParser_RuleModule(parser, $2);
}
free($2);
}
| SUBMODULE LPAREN WORD RPAREN WORD other EOSTMT {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
cmFortranParser_RuleUse(parser, $3);
free($3);
free($5);
}
| SUBMODULE LPAREN WORD COLON WORD RPAREN WORD other EOSTMT {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
cmFortranParser_RuleUse(parser, $3);
free($3);
free($5);
free($7);
}
| INTERFACE WORD other EOSTMT {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
cmFortranParser_SetInInterface(parser, true);
free($2);
}
| END INTERFACE other EOSTMT {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
cmFortranParser_SetInInterface(parser, false);
}
| USE DCOLON WORD other EOSTMT {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
cmFortranParser_RuleUse(parser, $3);
free($3);
}
| USE COMMA WORD DCOLON WORD other EOSTMT {
if (cmsysString_strcasecmp($3, "non_intrinsic") == 0) {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
cmFortranParser_RuleUse(parser, $5);
}
free($3);
free($5);
}
| INCLUDE STRING other EOSTMT {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
cmFortranParser_RuleInclude(parser, $2);
free($2);
}
| CPP_LINE_DIRECTIVE STRING other EOSTMT {
cmFortranParser* parser = cmFortran_yyget_extra(yyscanner);
cmFortranParser_RuleLineDirective(parser, $2);
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);
}
| EOSTMT
| error EOSTMT /* tolerate unknown statements until their end */
;
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); }
| END
| INCLUDE
| INTERFACE
| MODULE
| SUBMODULE
| USE
| STRING { free ($1); }
| GARBAGE
| ASSIGNMENT_OP
| COLON
| DCOLON
| LPAREN
| RPAREN
| COMMA
| UNTERMINATED_STRING
;
%%
/* End of grammar */
|
