074f92f37d6c1fd5b3323c2c4a6033408564b713
[dragonfly.git] / sbin / devd / token.l
1 %{
2 /*-
3  * DEVD (Device action daemon)
4  *
5  * Copyright (c) 2002 M. Warner Losh <imp@freebsd.org>.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD: src/sbin/devd/token.l,v 1.7 2008/03/21 20:38:28 imp Exp $
30  */
31
32 #pragma GCC diagnostic ignored "-Wsign-compare"
33 #include <ctype.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <syslog.h>
37 #include "devd.h"
38 #include "y.tab.h"
39
40 int lineno = 1;
41
42 static void
43 update_lineno(const char *cp)
44 {
45         while (*cp)     
46                 if (*cp++ == '\n')
47                         lineno++;
48 }
49
50 %}
51
52 %option nounput
53 %option noinput
54
55 %%
56
57 [ \t]+                  ;
58 \n                      lineno++;
59 ;                       { return SEMICOLON; }
60 #.*$                    ;
61 \/\/.*$                 ;
62 \/\*([^*]|(\*+([^*\/])))*\*+\/ { update_lineno(yytext); }
63 \{                      { return BEGINBLOCK; }
64 \}                      { return ENDBLOCK; }
65 [0-9]+                  { yylval.i = atoi(yytext); return NUMBER; }
66 \"[^"]+\"               {
67                                 int len = strlen(yytext) - 2;
68                                 char *walker;
69                                 int i;
70                                 update_lineno(yytext);
71                                 if ((yylval.str = (char *) malloc(len + 1)) == NULL)
72                                         goto out;
73                                 walker = yylval.str;
74                                 for (i = 1; i <= len; i++) {
75                                         if (yytext[i] == '\\' && 
76                                             yytext[i + 1] == '\n') {
77                                                 i += 2;
78                                                 while(isspace(yytext[i]))
79                                                         i++;
80                                         }
81                                         *walker++ = yytext[i];
82                                 }
83                                 *walker++ = '\0';
84                         out:;
85                                 return STRING;
86                         }
87
88
89 options                 { return OPTIONS; }
90 set                     { return SET; }
91 directory               { return DIRECTORY; }
92 pid-file                { return PID_FILE; }
93 attach                  { return ATTACH; }
94 detach                  { return DETACH; }
95 device-name             { return DEVICE_NAME; }
96 media-type              { return MEDIA_TYPE; }
97 class                   { return CLASS; }
98 subdevice               { return SUBDEVICE; }
99 action                  { return ACTION; }
100 match                   { return MATCH; }
101 nomatch                 { return NOMATCH; }
102 notify                  { return NOTIFY; }
103 [A-Za-z][A-Za-z0-9_-]*  {
104                                 yylval.str = strdup(yytext);
105                                 return ID;
106                         }
107 %%
108
109 void
110 yyerror(const char *s)
111 {
112         syslog(LOG_ERR, "line %d: %s%s %s.\n", lineno, yytext, yytext?":":"", s);
113 }