109 lines
3.1 KiB
Plaintext
109 lines
3.1 KiB
Plaintext
%{
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/*
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* Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* $Id: lex.l,v 1.1.1.2 2000/08/02 19:59:05 assar Exp $ */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "symbol.h"
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#include "parse.h"
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#include "lex.h"
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#include "gen_locl.h"
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static unsigned lineno = 1;
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#define YY_NO_UNPUT
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#undef ECHO
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%}
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%%
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INTEGER { return INTEGER; }
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IMPORTS { return IMPORTS; }
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FROM { return FROM; }
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SEQUENCE { return SEQUENCE; }
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OF { return OF; }
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OCTET { return OCTET; }
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STRING { return STRING; }
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GeneralizedTime { return GeneralizedTime; }
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GeneralString { return GeneralString; }
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BIT { return BIT; }
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APPLICATION { return APPLICATION; }
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OPTIONAL { return OPTIONAL; }
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BEGIN { return TBEGIN; }
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END { return END; }
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DEFINITIONS { return DEFINITIONS; }
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EXTERNAL { return EXTERNAL; }
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[,;{}()|] { return *yytext; }
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"[" { return *yytext; }
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"]" { return *yytext; }
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::= { return EEQUAL; }
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--[^\n]*\n { ++lineno; }
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-?[0-9]+ { yylval.constant = atoi(yytext); return CONSTANT; }
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[A-Za-z][-A-Za-z0-9_]* { yylval.name = strdup (yytext); return IDENTIFIER; }
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[ \t] ;
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\n { ++lineno; }
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\.\. { return DOTDOT; }
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. { error_message("Ignoring char(%c)\n", *yytext); }
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%%
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#ifndef yywrap /* XXX */
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int
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yywrap ()
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{
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return 1;
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}
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#endif
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void
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error_message (const char *format, ...)
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{
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va_list args;
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va_start (args, format);
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fprintf (stderr, "%s:%d: ", filename(), lineno);
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vfprintf (stderr, format, args);
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va_end (args);
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}
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