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%option noyywrap
%{
/* -*- c -*- */
/*
* arithscan.fl
*
* chpp
*
* Copyright (C) 1997-1998 Mark Probst
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "arith.h"
#include "arithparse.h"
%}
%%
"||" return T_OR;
"&&" return T_AND;
"==" return T_EQ;
"!=" return T_NE;
"<=" return T_LE;
">=" return T_GE;
[a-zA-Z_][a-zA-Z0-9_]* { yylval.type = NUMBER_STRING; yylval.val.stringVal = dsNewFrom(yytext); return T_IDENT; }
[0-9]+ { yylval.type = NUMBER_INT; yylval.val.intVal = atoi(yytext); yylval.val.doubleVal = yylval.val.intVal; return T_NUM; }
[0-9]*\.[0-9]+ { yylval.type = NUMBER_DOUBLE; yylval.val.doubleVal = atof(yytext); yylval.val.intVal = yylval.val.doubleVal; return T_NUM; }
[ \t\n]+ ;
. return yytext[0];
%%
static YY_BUFFER_STATE bufferState;
void
arithScanFromDS (dynstring *ds)
{
bufferState = yy_scan_string(ds->data);
}
void
arithEndScanning (void)
{
yy_delete_buffer(bufferState);
}
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