usr.sbin/bluetooth/bthidd/lexer.l

   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
  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