lex.l revision 1.4 
1/*	$NetBSD: lex.l,v 1.4 2009/10/28 22:22:44 christos Exp $	*/
2
3%{
4/*-
5 * Copyright (c)2003 Citrus Project,
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#if HAVE_NBTOOL_CONFIG_H
31#include "nbtool_config.h"
32#endif
33
34#include <sys/cdefs.h>
35#if !defined(lint)
36__RCSID("$NetBSD: lex.l,v 1.4 2009/10/28 22:22:44 christos Exp $");
37#endif /* not lint */
38
39#include <assert.h>
40#include <errno.h>
41#include <limits.h>
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45#include <machine/endian.h>
46#include <sys/queue.h>
47
48#include "ldef.h"
49#include "yacc.h"
50
51int line_number = 1;
52
53#define YY_NO_UNPUT
54#define YY_NO_INPUT
55%}
56
57%x	COMMENT
58
59%%
60
61[ \t]+	{ }
62#.*[\n]|"//".*[\n]|[\n]	{ line_number++; return (R_LN); }
63
64"/*"		{ BEGIN COMMENT; }
65<COMMENT>"*/"	{ BEGIN 0; }
66<COMMENT>[\n]	{ line_number++; }
67<COMMENT>.	{ }
68<COMMENT><<EOF>>	{
69		yyerror("unexpected file end (unterminate comment)\n");
70		exit(1);
71	}
72
73([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+)	{
74		yylval.i_value = strtoul(yytext, NULL, 0);
75		return L_IMM;
76	}
77
78"NAME"		{ return R_NAME; }
79"ENCODING"	{ return R_ENCODING; }
80"VARIABLE"	{ return R_VARIABLE; }
81"DEFCSID"	{ return R_DEFCSID; }
82"INVALID"	{ return R_INVALID; }
83
84\"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\'	{
85		size_t len;
86		len = strlen(yytext);
87		yylval.s_value = malloc(len-1);
88		strlcpy(yylval.s_value, yytext+1, len-1);
89		return L_STRING;
90	}
91[^ =/\-0-9\t\n][^ \t\n]*	{
92		yylval.s_value = strdup(yytext);
93		return L_STRING;
94	}
95
96%%
97
98#ifndef yywrap
99int
100yywrap(void)
101{
102	return (1);
103}
104#endif
105