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%{
/* SPDX-License-Identifier: LGPL-2.1-or-later */

/***************************************************************************

 *   Copyright (c) 2010 Jürgen Riegel <juergen.riegel@web.de>              *

 *                                                                         *

 *   This library is free software; you can redistribute it and/or         *

 *   modify it under the terms of the GNU Library General Public           *

 *   License as published by the Free Software Foundation; either          *

 *   version 2 of the License, or (at your option) any later version.      *

 *                                                                         *

 *   This library  is distributed in the hope that it will be useful,      *

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *

 *   GNU Library General Public License for more details.                  *

 *                                                                         *

 *   You should have received a copy of the GNU Library General Public     *

 *   License along with this library; see the file COPYING.LIB. If not,    *

 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *

 *   Suite 330, Boston, MA  02111-1307, USA                                *

 *                                                                         *

 ***************************************************************************/

/* Lexer for the FreeCAD selection filter language */



/*  flex -o SelectionFilter.lex.cpp SelectionFilter.l */



#include <string>



#include "stdio.h"





/* This disables inclusion of unistd.h, which is not available under Visual C++
 * on Win32. The C++ scanner uses STL streams instead. */

#define YY_NO_UNISTD_H



%}



/*** Flex Declarations and Options ***/

/* change the name of the scanner class. results in "SelectionFilterFlexLexer" */

%option prefix="SelectionFilter"



/* the manual says "somewhat more optimized" */

%option batch



/* no support for include files is planned */

%option noyywrap nounput





%% /*** Filter language Part ***/


[ \t]                   ;
[\n]+                   ;
"SUBELEMENT"            return TSUB;
"SELECT"                return TSELECT;
"COUNT"                 return TCOUNT;
".."					return TSLICE;
"::"					return TNAMESPACE;

[a-zA-Z_][a-zA-Z0-9_]*  {
       yylval.string = StringFactory::New(yytext);

       return TIDENTIFIER;

      }

[0-9]+                  {

       long n = strtol (yytext, NULL, 10);

       yylval.number = n;

       return TNUMBER;

     }