lex.l revision 240537 
1/* $FreeBSD: stable/9/usr.bin/mkesdb/lex.l 240537 2012-09-15 18:53:00Z dim $ */
2/* $NetBSD: lex.l,v 1.3 2006/02/09 22:03:15 dogcow Exp $	*/
3
4%{
5/*-
6 * Copyright (c)2003 Citrus Project,
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
32#include <sys/endian.h>
33#include <sys/queue.h>
34#include <sys/types.h>
35
36#include <assert.h>
37#include <errno.h>
38#include <limits.h>
39#include <stdio.h>
40#include <stdlib.h>
41#include <string.h>
42
43#include "ldef.h"
44#include "yacc.h"
45
46int line_number = 1;
47%}
48%option	noinput
49%option	nounput
50
51%x	COMMENT
52
53%%
54
55[ \t]+	{ }
56#.*[\n]|"//".*[\n]|[\n]	{ line_number++; return (R_LN); }
57
58"/*"		{ BEGIN COMMENT; }
59<COMMENT>"*/"	{ BEGIN 0; }
60<COMMENT>[\n]	{ line_number++; }
61<COMMENT>.	{ }
62<COMMENT><<EOF>>	{
63		yyerror("unexpected file end (unterminated comment)\n");
64		exit(1);
65	}
66
67([1-9][0-9]*)|(0[0-9]*)|(0[xX][0-9A-Fa-f]+)	{
68		yylval.i_value = strtoul(yytext, NULL, 0);
69		return (L_IMM);
70	}
71
72"NAME"		{ return (R_NAME); }
73"ENCODING"	{ return (R_ENCODING); }
74"VARIABLE"	{ return (R_VARIABLE); }
75"DEFCSID"	{ return (R_DEFCSID); }
76"INVALID"	{ return (R_INVALID); }
77
78\"([^\"\n]*(\\\")?)*\"|\'([^\'\n]*(\\\')?)*\'	{
79		size_t len;
80
81		len = strlen(yytext);
82		yylval.s_value = malloc(len - 1);
83		strlcpy(yylval.s_value, yytext + 1, len - 1);
84		return (L_STRING);
85	}
86[^ =/\-0-9\t\n][^ \t\n]*	{
87		yylval.s_value = strdup(yytext);
88		return (L_STRING);
89	}
90
91%%
92
93#ifndef yywrap
94int
95yywrap(void)
96{
97
98	return (1);
99}
100#endif
101