1/* $NetBSD: lex.l,v 1.3 2006/02/09 22:03:15 dogcow Exp $	*/
2
3%{
4/*-
5 * SPDX-License-Identifier: BSD-2-Clause
6 *
7 * Copyright (c)2003 Citrus Project,
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33#include <sys/endian.h>
34#include <sys/queue.h>
35#include <sys/types.h>
36
37#include <assert.h>
38#include <errno.h>
39#include <limits.h>
40#include <stdio.h>
41#include <stdlib.h>
42#include <string.h>
43
44#include "ldef.h"
45#include "yacc.h"
46
47#define YY_DECL int yylex(void)
48
49int linenumber = 1;
50%}
51%option	noinput
52%option	nounput
53
54%x	COMMENT
55
56%%
57
58[ \t]+	{ }
59#.*[\n]|"//".*[\n]|[\n]	{ linenumber++; return (R_LN); }
60
61"/*"		{ BEGIN COMMENT; }
62<COMMENT>"*/"	{ BEGIN 0; }
63<COMMENT>[\n]	{ linenumber++; }
64<COMMENT>.	{ }
65<COMMENT><<EOF>>	{
66		yyerror("unexpected file end (unterminated comment)\n");
67		exit(1);
68	}
69
70([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+)	{
71		yylval.i_value = strtoul(yytext, NULL, 0);
72		return (L_IMM);
73	}
74
75"NAME"		{ return (R_NAME); }
76"ENCODING"	{ return (R_ENCODING); }
77"VARIABLE"	{ return (R_VARIABLE); }
78"DEFCSID"	{ return (R_DEFCSID); }
79"INVALID"	{ return (R_INVALID); }
80
81\"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\'	{
82		size_t len;
83
84		len = strlen(yytext);
85		yylval.s_value = malloc(len - 1);
86		strlcpy(yylval.s_value, yytext + 1, len - 1);
87		return (L_STRING);
88	}
89[^ =/\-0-9\t\n][^ \t\n]*	{
90		yylval.s_value = strdup(yytext);
91		return (L_STRING);
92	}
93
94%%
95
96#ifndef yywrap
97int
98yywrap(void)
99{
100
101	return (1);
102}
103#endif
104