freebsd-skq/usr.sbin/bluetooth/bthidd/lexer.l
2013-05-23 05:42:35 +00:00

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%{
/*
* lexer.l
*/
/*-
* Copyright (c) 2006 Maksim Yevmenkin <m_evmenkin@yahoo.com>
* 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.
*
* $Id: lexer.l,v 1.3 2006/09/07 21:06:53 max Exp $
* $FreeBSD$
*/
#include <bluetooth.h>
#include <stdlib.h>
#include "parser.h"
int yylex (void);
#define YY_DECL int yylex(void)
%}
%option yylineno noyywrap nounput noinput
delim [ \t\n]
ws {delim}+
empty {delim}*
comment \#.*
hexdigit [0-9a-fA-F]
hexbyte {hexdigit}{hexdigit}?
device_word device
bdaddr_word bdaddr
control_psm_word control_psm
interrupt_psm_word interrupt_psm
reconnect_initiate_word reconnect_initiate
battery_power_word battery_power
normally_connectable_word normally_connectable
hid_descriptor_word hid_descriptor
true_word true
false_word false
bdaddrstring {hexbyte}:{hexbyte}:{hexbyte}:{hexbyte}:{hexbyte}:{hexbyte}
hexbytestring 0x{hexbyte}
%%
\; return (';');
\: return (':');
\{ return ('{');
\} return ('}');
{ws} ;
{empty} ;
{comment} ;
{device_word} return (T_DEVICE);
{bdaddr_word} return (T_BDADDR);
{control_psm_word} return (T_CONTROL_PSM);
{interrupt_psm_word} return (T_INTERRUPT_PSM);
{reconnect_initiate_word} return (T_RECONNECT_INITIATE);
{battery_power_word} return (T_BATTERY_POWER);
{normally_connectable_word} return (T_NORMALLY_CONNECTABLE);
{hid_descriptor_word} return (T_HID_DESCRIPTOR);
{true_word} return (T_TRUE);
{false_word} return (T_FALSE);
{bdaddrstring} {
return (bt_aton(yytext, &yylval.bdaddr)?
T_BDADDRSTRING : T_ERROR);
}
{hexbytestring} {
char *ep;
yylval.num = strtoul(yytext, &ep, 16);
return (*ep == '\0'? T_HEXBYTE : T_ERROR);
}
. return (T_ERROR);
%%