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secondo/Algebras/SymbolicTrajectory/PatternRegExScanner.l
2026-01-23 17:03:45 +08:00

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/*
----
This file is part of SECONDO.
Copyright (C) 2004, University in Hagen, Department of Computer Science,
Database Systems for New Applications.
SECONDO is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
SECONDO 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
----
*/
%{
/*
1 The Scannerfile
*/
#include "PatternRegExParser.y.h"
int yylex_destroy ( void );
void destroyLex(){
yy_delete_buffer(YY_CURRENT_BUFFER);
pregexlex_destroy();
}
%}
%option prefix="pregex"
%option noyywrap
whitespace [ \n\r\t\a\b\f\t\v]
integer [0-9]+
%%
<INITIAL>{whitespace} { ; }
<INITIAL>{integer} { pregexlval.numval = atoi(pregextext); return INTEGER;}
<INITIAL>"(" { return OPEN; }
<INITIAL>")" { return CLOSE; }
<INITIAL>"*" { return STAR; }
<INITIAL>"|" { return OR; }
<INITIAL>"+" { return PLUS; }
<INITIAL>"?" { return OPTION; }
%%