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%{
/*============================================================================
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 flex like this:
flex -i --prefix=cmFortran_yy --header-file=cmFortranLexer.h -ocmFortranLexer.cxx cmFortranLexer.in.l
Modify cmFortranLexer.cxx:
- remove TABs
- remove use of the 'register' storage class specifier
- remove "yyscanner" argument from these methods:
yy_fatal_error, cmFortran_yyalloc, cmFortran_yyrealloc, cmFortran_yyfree
- remove "yyscanner = NULL" from end of cmFortran_yylex_destroy
- remove all YY_BREAK lines occurring right after return statements
- change while ( 1 ) to for(;;)
Modify cmFortranLexer.h:
- remove TABs
- remove the yy_init_globals function
- remove the block that includes unistd.h
- remove #line directives (avoids bogus warning on old Sun)
*/
#include "cmStandardLexer.h"
#define cmFortranLexer_cxx
#include "cmFortranParser.h" /* Interface to parser object. */
/* Replace the lexer input function. */
#undef YY_INPUT
#define YY_INPUT(buf, result, max_size) \
{ result = cmFortranParser_Input(yyextra, buf, max_size); }
/* Include the set of tokens from the parser. */
#include "cmFortranParserTokens.h"
/*--------------------------------------------------------------------------*/
%}
%option reentrant
%option noyywrap
%pointer
%s free_fmt fixed_fmt
%x str_sq str_dq
%%
\" {
cmFortranParser_StringStart(yyextra);
cmFortranParser_SetOldStartcond(yyextra, YY_START);
BEGIN(str_dq);
}
' {
cmFortranParser_StringStart(yyextra);
cmFortranParser_SetOldStartcond(yyextra, YY_START);
BEGIN(str_sq);
}
<str_dq>\" |
<str_sq>' {
BEGIN(cmFortranParser_GetOldStartcond(yyextra) );
yylvalp->string = strdup(cmFortranParser_StringEnd(yyextra));
return STRING;
}
<str_dq,str_sq>&[ \t]*\n |
<str_dq,str_sq>&[ \t]*\n[ \t]*& /* Ignore (continued strings, free fmt) */
<fixed_fmt,str_dq,str_sq>\n[ ]{5}[^ \t\n] {
if (cmFortranParser_GetOldStartcond(yyextra) == fixed_fmt)
; /* Ignore (cont. strings, fixed fmt) */
else
{
unput(yytext[strlen(yytext)-1]);
}
}
<str_dq,str_sq>\n {
unput ('\n');
BEGIN(INITIAL);
return UNTERMINATED_STRING;
}
<str_sq,str_dq>. {
cmFortranParser_StringAppend(yyextra, yytext[0]);
}
!.*\n { return EOSTMT; } /* Treat comments like */
<fixed_fmt>^[cC*dD].*\n { return EOSTMT; } /* empty lines */
^[ \t]*#[ \t]*include[ \t]*<[^>]+> {
yytext[yyleng-1] = 0;
yylvalp->string = strdup(strchr(yytext, '<')+1);
return CPP_INCLUDE_ANGLE;
}
^[ \t]*#[ \t]*include { return CPP_INCLUDE; }
\$[ \t]*include { return F90PPR_INCLUDE; }
\?\?[ \t]*include { return COCO_INCLUDE; }
^[ \t]*#[ \t]*define { return CPP_DEFINE; }
\$[ \t]*DEFINE { return F90PPR_DEFINE; }
^[ \t]*#[ \t]*undef { return CPP_UNDEF; }
\$[ \t]*UNDEF { return F90PPR_UNDEF; }
^[ \t]*#[ \t]*ifdef { return CPP_IFDEF; }
^[ \t]*#[ \t]*ifndef { return CPP_IFNDEF; }
^[ \t]*#[ \t]*if { return CPP_IF; }
^[ \t]*#[ \t]*elif { return CPP_ELIF; }
^[ \t]*#[ \t]*else { return CPP_ELSE; }
^[ \t]*#[ \t]*endif { return CPP_ENDIF; }
$[ \t]*ifdef { return F90PPR_IFDEF; }
$[ \t]*ifndef { return F90PPR_IFNDEF; }
$[ \t]*if { return F90PPR_IF; }
$[ \t]*elif { return F90PPR_ELIF; }
$[ \t]*else { return F90PPR_ELSE; }
$[ \t]*endif { return F90PPR_ENDIF; }
/* Line continuations, possible involving comments. */
&([ \t\n]*|!.*)*
&([ \t\n]*|!.*)*&
, { return COMMA; }
:: { return DCOLON; }
<fixed_fmt>\n[ ]{5}[^ ] { return GARBAGE; }
=|=> { return ASSIGNMENT_OP; }
[a-zA-Z_][a-zA-Z_0-9]* {
yylvalp->string = strdup(yytext);
return WORD;
}
[^ \t\n\r;,!'"a-zA-Z=&]+ { return GARBAGE; }
;|\n { return EOSTMT; }
[ \t\r,] /* Ignore */
\\[ \t]*\n /* Ignore line-endings preceeded by \ */
. { return *yytext; }
<<EOF>> {
if(!cmFortranParser_FilePop(yyextra) )
{
return YY_NULL;
}
}
%%
/*--------------------------------------------------------------------------*/
YY_BUFFER_STATE cmFortranLexer_GetCurrentBuffer(yyscan_t yyscanner)
{
/* Hack into the internal flex-generated scanner to get the buffer. */
struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
return YY_CURRENT_BUFFER;
}
|
