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%{
/*
* Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $Id: lex.l,v 1.19 2001/09/25 23:28:03 assar Exp $ */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#undef ECHO
#include "symbol.h"
#include "parse.h"
#include "lex.h"
#include "gen_locl.h"
static unsigned lineno = 1;
#define YY_NO_UNPUT
#undef ECHO
%}
%%
INTEGER { return INTEGER; }
IMPORTS { return IMPORTS; }
FROM { return FROM; }
SEQUENCE { return SEQUENCE; }
OF { return OF; }
OCTET { return OCTET; }
STRING { return STRING; }
GeneralizedTime { return GeneralizedTime; }
GeneralString { return GeneralString; }
BIT { return BIT; }
APPLICATION { return APPLICATION; }
OPTIONAL { return OPTIONAL; }
BEGIN { return TBEGIN; }
END { return END; }
DEFINITIONS { return DEFINITIONS; }
ENUMERATED { return ENUMERATED; }
EXTERNAL { return EXTERNAL; }
OBJECT { return OBJECT; }
IDENTIFIER { return IDENTIFIER; }
[,;{}()|] { return *yytext; }
"[" { return *yytext; }
"]" { return *yytext; }
::= { return EEQUAL; }
--[^\n]*\n { ++lineno; }
-?(0x)?[0-9]+ { char *e, *y = yytext;
yylval.constant = strtol((const char *)yytext,
&e, 0);
if(e == y)
error_message("malformed constant (%s)", yytext);
else
return CONSTANT;
}
[A-Za-z][-A-Za-z0-9_]* {
yylval.name = strdup ((const char *)yytext);
return IDENT;
}
[ \t] ;
\n { ++lineno; }
\.\. { return DOTDOT; }
. { error_message("Ignoring char(%c)\n", *yytext); }
%%
#ifndef yywrap /* XXX */
int
yywrap ()
{
return 1;
}
#endif
void
error_message (const char *format, ...)
{
va_list args;
va_start (args, format);
fprintf (stderr, "%s:%d: ", filename(), lineno);
vfprintf (stderr, format, args);
va_end (args);
}
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