xref: /freebsd/usr.sbin/bluetooth/bthidd/lexer.l (revision 63d1fd5970ec814904aa0f4580b10a0d302d08b2)
1 %{
2 /*
3  * lexer.l
4  */
5 
6 /*-
7  * Copyright (c) 2006 Maksim Yevmenkin <m_evmenkin@yahoo.com>
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  * $Id: lexer.l,v 1.3 2006/09/07 21:06:53 max Exp $
32  * $FreeBSD$
33  */
34 #define L2CAP_SOCKET_CHECKED
35 #include <bluetooth.h>
36 #include <stdlib.h>
37 #include "parser.h"
38 
39 	int	yylex	(void);
40 
41 #define	YY_DECL	int yylex(void)
42 %}
43 
44 %option yylineno noyywrap nounput noinput
45 
46 delim				[ \t\n]
47 ws				{delim}+
48 empty				{delim}*
49 comment				\#.*
50 
51 hexdigit			[0-9a-fA-F]
52 hexbyte				{hexdigit}{hexdigit}?
53 
54 device_word			device
55 bdaddr_word			bdaddr
56 control_psm_word		control_psm
57 interrupt_psm_word		interrupt_psm
58 reconnect_initiate_word		reconnect_initiate
59 battery_power_word		battery_power
60 normally_connectable_word	normally_connectable
61 hid_descriptor_word		hid_descriptor
62 true_word			true
63 false_word			false
64 
65 bdaddrstring			{hexbyte}:{hexbyte}:{hexbyte}:{hexbyte}:{hexbyte}:{hexbyte}
66 hexbytestring			0x{hexbyte}
67 
68 %%
69 
70 \;				return (';');
71 \:				return (':');
72 \{				return ('{');
73 \}				return ('}');
74 
75 {ws}				;
76 {empty}				;
77 {comment}			;
78 
79 {device_word}			return (T_DEVICE);
80 {bdaddr_word}			return (T_BDADDR);
81 {control_psm_word}		return (T_CONTROL_PSM);
82 {interrupt_psm_word}		return (T_INTERRUPT_PSM);
83 {reconnect_initiate_word}	return (T_RECONNECT_INITIATE);
84 {battery_power_word}		return (T_BATTERY_POWER);
85 {normally_connectable_word}	return (T_NORMALLY_CONNECTABLE);
86 {hid_descriptor_word}		return (T_HID_DESCRIPTOR);
87 {true_word}			return (T_TRUE);
88 {false_word}			return (T_FALSE);
89 
90 {bdaddrstring}			{
91 				return (bt_aton(yytext, &yylval.bdaddr)?
92 						T_BDADDRSTRING : T_ERROR);
93 				}
94 
95 {hexbytestring}			{
96 				char	*ep;
97 
98 				yylval.num = strtoul(yytext, &ep, 16);
99 
100 				return (*ep == '\0'? T_HEXBYTE : T_ERROR);
101 				}
102 
103 .				return (T_ERROR);
104 
105 %%
106 
107