devd(8): Sync with FreeBSD and turn it on by default.
[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: head/sbin/devd/token.l 250227 2013-05-03 23:51:32Z jkim $
30  */
31
32 #include <ctype.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <syslog.h>
36 #include "devd.h"
37 #include "y.tab.h"
38
39 int lineno = 1;
40
41 static void
42 update_lineno(const char *cp)
43 {
44         while (*cp)     
45                 if (*cp++ == '\n')
46                         lineno++;
47 }
48
49 %}
50
51 %option nounput
52 %option noinput
53
54 %%
55
56 [ \t]+                  ;
57 \n                      lineno++;
58 ;                       { return SEMICOLON; }
59 #.*$                    ;
60 \/\/.*$                 ;
61 \/\*([^*]|(\*+([^*\/])))*\*+\/ { update_lineno(yytext); }
62 \{                      { return BEGINBLOCK; }
63 \}                      { return ENDBLOCK; }
64 [0-9]+                  { yylval.i = atoi(yytext); return NUMBER; }
65 \"[^"]+\"               {
66                                 int len = strlen(yytext) - 2;
67                                 char *walker;
68                                 int i;
69                                 update_lineno(yytext);
70                                 if ((yylval.str = (char *) malloc(len + 1)) == NULL)
71                                         goto out;
72                                 walker = yylval.str;
73                                 for (i = 1; i <= len; i++) {
74                                         if (yytext[i] == '\\' && 
75                                             yytext[i + 1] == '\n') {
76                                                 i += 2;
77                                                 while(isspace(yytext[i]))
78                                                         i++;
79                                         }
80                                         *walker++ = yytext[i];
81                                 }
82                                 *walker++ = '\0';
83                         out:;
84                                 return STRING;
85                         }
86
87
88 options                 { return OPTIONS; }
89 set                     { return SET; }
90 directory               { return DIRECTORY; }
91 pid-file                { return PID_FILE; }
92 attach                  { return ATTACH; }
93 detach                  { return DETACH; }
94 device-name             { return DEVICE_NAME; }
95 media-type              { return MEDIA_TYPE; }
96 class                   { return CLASS; }
97 subdevice               { return SUBDEVICE; }
98 action                  { return ACTION; }
99 match                   { return MATCH; }
100 nomatch                 { return NOMATCH; }
101 notify                  { return NOTIFY; }
102 [A-Za-z][A-Za-z0-9_-]*  {
103                                 yylval.str = strdup(yytext);
104                                 return ID;
105                         }
106 %%
107
108 void
109 yyerror(const char *s)
110 {
111         syslog(LOG_ERR, "line %d: %s%s %s.\n", lineno, yytext, yytext?":":"", s);
112 }