xref: /minix/usr.bin/mkesdb/lex.l (revision 36dcc4a4)

/*	$NetBSD: lex.l,v 1.5 2009/10/29 14:49:03 christos Exp $	*/

%{
/*-
 * Copyright (c)2003 Citrus Project,
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 */

#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif

#include <sys/cdefs.h>
#if !defined(lint)
__RCSID("$NetBSD: lex.l,v 1.5 2009/10/29 14:49:03 christos Exp $");
#endif /* not lint */

#include <assert.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <machine/endian.h>
#include <sys/queue.h>

#include "ldef.h"
#include "yacc.h"

int line_number = 1;

%}

%option noinput nounput
%x	COMMENT

%%

[ \t]+	{ }
#.*[\n]|"//".*[\n]|[\n]	{ line_number++; return (R_LN); }

"/*"		{ BEGIN COMMENT; }
<COMMENT>"*/"	{ BEGIN 0; }
<COMMENT>[\n]	{ line_number++; }
<COMMENT>.	{ }
<COMMENT><<EOF>>	{
		yyerror("unexpected file end (unterminate comment)\n");
		exit(1);
	}

([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+)	{
		yylval.i_value = strtoul(yytext, NULL, 0);
		return L_IMM;
	}

"NAME"		{ return R_NAME; }
"ENCODING"	{ return R_ENCODING; }
"VARIABLE"	{ return R_VARIABLE; }
"DEFCSID"	{ return R_DEFCSID; }
"INVALID"	{ return R_INVALID; }

\"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\'	{
		size_t len;
		len = strlen(yytext);
		yylval.s_value = malloc(len-1);
		strlcpy(yylval.s_value, yytext+1, len-1);
		return L_STRING;
	}
[^ =/\-0-9\t\n][^ \t\n]*	{
		yylval.s_value = strdup(yytext);
		return L_STRING;
	}

%%

#ifndef yywrap
int
yywrap(void)
{
	return (1);
}
#endif