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 121487 2003-10-24 22:02:29Z imp $
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
39int lineno = 1;
40#define YY_NO_UNPUT
41
42static void
43update_lineno(const char *cp)
44{
45 while (*cp)
46 if (*cp++ == '\n')
47 lineno++;
48}
49
50%}
51
52%%
53
54[ \t]+ ;
55\n lineno++;
56; { return SEMICOLON; }
57#.*$ ;
58\/\/.*$ ;
59\/\*([^*]|(\*+([^*\/])))*\*+\/ { update_lineno(yytext); }
60\{ { return BEGINBLOCK; }
61\} { return ENDBLOCK; }
62[0-9]+ { yylval.i = atoi(yytext); return NUMBER; }
63\"[^"]+\" {
64 update_lineno(yytext);
65 int len = strlen(yytext) - 2;
66 char *walker;
67 int i;
68 if ((yylval.str = (char *) malloc(len + 1)) == NULL)
69 goto out;
70 walker = yylval.str;
71 for (i = 1; i <= len; i++) {
72 if (yytext[i] == '\\' &&
73 yytext[i + 1] == '\n') {
74 i += 2;
75 while(isspace(yytext[i]))
76 i++;
77 }
78 *walker++ = yytext[i];
79 }
80 *walker++ = '\0';
81 out:;
82 return STRING;
83 }
84
85
86options { return OPTIONS; }
87set { return SET; }
88directory { return DIRECTORY; }
89pid-file { return PID_FILE; }
90attach { return ATTACH; }
91detach { return DETACH; }
92device-name { return DEVICE_NAME; }
93action { return ACTION; }
94match { return MATCH; }
95nomatch { return NOMATCH; }
96notify { return NOTIFY; }
97[A-Za-z][A-Za-z0-9_-]* {
98 yylval.str = strdup(yytext);
99 return ID;
100 }
101%%
102
103void
104yyerror(const char *s)
105{
106 syslog(LOG_ERR, "line %d: %s%s %s.\n", lineno, yytext, yytext?":":"", s);
107}