- Test m_pkthdr.fw_flags against DUMMYNET_MBUF_TAGGED before trying to locate
[dragonfly/netmp.git] / usr.sbin / config / lang.l
blob938135c2004fbd0a1e4acc282bc25626ca577ecc
1 %{
2 /*-
3  * Copyright (c) 1980, 1993
4  *      The Regents of the University of California.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *      This product includes software developed by the University of
17  *      California, Berkeley and its contributors.
18  * 4. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  *
34  *      @(#)lang.l      8.1 (Berkeley) 6/6/93
35  * $FreeBSD: src/usr.sbin/config/lang.l,v 1.27 1999/11/09 07:20:22 peter Exp $
36  * $DragonFly: src/usr.sbin/config/lang.l,v 1.14 2008/05/01 09:24:42 swildner Exp $
37  */
39 #include <ctype.h>
40 #include <string.h>
41 #include "y.tab.h"
42 #include "config.h"
44 #define YY_NO_UNPUT
47  * Key word table
48  */
50 struct kt {
51         const char *kt_name;
52         int kt_val;
53 } key_words[] = {
54         { "at",         AT },
55         { "bus",        BUS },
56         { "config",     CONFIG },
57         { "cpu",        CPU },
58         { "device",     DEVICE },
59         { "disable",    DISABLE },
60         { "drive",      DRIVE },
61         { "drq",        DRQ },
62         { "flags",      FLAGS },
63         { "ident",      IDENT },
64         { "iomem",      IOMEM },
65         { "iosiz",      IOSIZ },
66         { "irq",        IRQ },
67         { "machine",    CONFIG_MACHINE },
68         { "machine_arch", CONFIG_MACHINE_ARCH },
69         { "makeoptions", MAKEOPTIONS },
70         { "maxusers",   MAXUSERS },
71         { "nexus",      NEXUS },
72         { "option",     OPTIONS },
73         { "options",    OPTIONS },
74         { "platform",   CONFIG_PLATFORM },
75         { "port",       PORT },
76         { "pseudo-device",PSEUDO_DEVICE },
77         { "target",     TARGET },
78         { "unit",       UNIT },
79         { 0, 0 },
83 int kw_lookup(char *);
84 int octal(char *);
85 int hex(char *);
88 WORD    [A-Za-z_][-A-Za-z_]*
89 ID      [A-Za-z_][-A-Za-z_0-9]*
90 %START NONUM TOEOL
92 <NONUM>{WORD}   {
93                         int i;
95                         BEGIN 0;
96                         if ((i = kw_lookup(yytext)) == -1)
97                         {
98                                 yylval.str = strdup(yytext);
99                                 return(ID);
100                         }
101                         return(i);
102                 }
103 <INITIAL>{WORD}/[0-9]* {
104                         int i;
106                         if ((i = kw_lookup(yytext)) == -1)
107                                 REJECT;
108                         if (i == DEVICE || i == PSEUDO_DEVICE || i == AT)
109                                 BEGIN NONUM;
110                         return(i);
111                 }
112 <INITIAL>{ID}   {
113                         BEGIN 0;
114                         yylval.str = strdup(yytext);
115                         return(ID);
116                 }
117 \\\"[^"]+\\\"   {
118                         BEGIN 0;
119                         yytext[yyleng-2] = '"';
120                         yytext[yyleng-1] = '\0';
121                         yylval.str = strdup(yytext + 1);
122                         return(ID);
123                 }
124 \"[^"]+\"       {
125                         BEGIN 0;
126                         yytext[yyleng-1] = '\0';
127                         yylval.str = strdup(yytext + 1);
128                         return(ID);
129                 }
130 <TOEOL>[^# \t\n]*       {
131                         BEGIN 0;
132                         yylval.str = strdup(yytext);
133                         return(ID);
134                 }
135 0[0-7]*         {
136                         yylval.val = octal(yytext);
137                         return(NUMBER);
138                 }
139 0x[0-9a-fA-F]+  {
140                         yylval.val = hex(yytext);
141                         return(NUMBER);
142                 }
143 -?[1-9][0-9]*   {
144                         yylval.val = atoi(yytext);
145                         return(NUMBER);
146                 }
147 [0-9]"."[0-9]*  {
148                         yylval.val = (int)(60 * atof(yytext) + 0.5);
149                         return(FPNUMBER);
150                 }
151 "?"             {
152                         yylval.val = -1;
153                         return(NUMBER);
154                 }
155 \n/[ \t]        {
156                         yyline++;
157                 }
158 \n              {
159                         yyline++;
160                         return(SEMICOLON);
161                 }
162 #.*             {       /* Ignored (comment) */;        }
163 [ \t\f]*        {       /* Ignored (white space) */;    }
164 ";"             {       return(SEMICOLON);              }
165 ","             {       return(COMMA);                  }
166 "="             {       BEGIN TOEOL; return(EQUALS);    }
167 "@"             {       return(AT);                     }
168 .               {       return(yytext[0]);              }
172  * kw_lookup
173  *      Look up a string in the keyword table.  Returns a -1 if the
174  *      string is not a keyword otherwise it returns the keyword number
175  */
178 kw_lookup(char *word)
180         struct kt *kp;
182         for (kp = key_words; kp->kt_name != NULL; kp++)
183                 if (!strcmp(word, kp->kt_name))
184                         return(kp->kt_val);
185         return(-1);
189  * Number conversion routines
190  */
193 octal(char *str)
195         int num;
197         sscanf(str, "%o", &num);
198         return(num);
202 hex(char *str)
204         int num;
206         sscanf(str + 2, "%x", &num);
207         return(num);