Rename /usr/src/sys/machine to /usr/src/sys/platform. Give the platform
[dragonfly.git] / usr.sbin / config / lang.l
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 1.13 2007/01/19 07:23:43 dillon Exp $
37  */
38
39 #include <ctype.h>
40 #include <string.h>
41 #include "y.tab.h"
42 #include "config.h"
43
44 #define YY_NO_UNPUT
45
46 /*
47  * Key word table
48  */
49
50 struct kt {
51         const char *kt_name;
52         int kt_val;
53 } key_words[] = {
54         { "at",         AT },
55         { "bus",        BUS },
56         { "conflicts",  CONFLICTS },
57         { "config",     CONFIG },
58         { "controller", CONTROLLER },
59         { "cpu",        CPU },
60         { "device",     DEVICE },
61         { "disable",    DISABLE },
62         { "disk",       DISK },
63         { "drive",      DRIVE },
64         { "drq",        DRQ },
65         { "flags",      FLAGS },
66         { "ident",      IDENT },
67         { "iomem",      IOMEM },
68         { "iosiz",      IOSIZ },
69         { "irq",        IRQ },
70         { "machine",    CONFIG_MACHINE },
71         { "machine_arch", CONFIG_MACHINE_ARCH },
72         { "makeoptions", MAKEOPTIONS },
73         { "maxusers",   MAXUSERS },
74         { "nexus",      NEXUS },
75         { "option",     OPTIONS },
76         { "options",    OPTIONS },
77         { "platform",   CONFIG_PLATFORM },
78         { "port",       PORT },
79         { "pseudo-device",PSEUDO_DEVICE },
80         { "tape",       TAPE },
81         { "target",     TARGET },
82         { "unit",       UNIT },
83         { 0, 0 },
84 };
85
86
87 int kw_lookup(char *);
88 int octal(char *);
89 int hex(char *);
90
91 %}
92 WORD    [A-Za-z_][-A-Za-z_]*
93 ID      [A-Za-z_][-A-Za-z_0-9]*
94 %START NONUM TOEOL
95 %%
96 <NONUM>{WORD}   {
97                         int i;
98
99                         BEGIN 0;
100                         if ((i = kw_lookup(yytext)) == -1)
101                         {
102                                 yylval.str = strdup(yytext);
103                                 return(ID);
104                         }
105                         return(i);
106                 }
107 <INITIAL>{WORD}/[0-9]* {
108                         int i;
109
110                         if ((i = kw_lookup(yytext)) == -1)
111                                 REJECT;
112                         if (i == CONTROLLER || i == DEVICE || i == DISK || i == TAPE ||
113                             i == PSEUDO_DEVICE || i == AT)
114                                 BEGIN NONUM;
115                         return(i);
116                 }
117 <INITIAL>{ID}   {
118                         BEGIN 0;
119                         yylval.str = strdup(yytext);
120                         return(ID);
121                 }
122 \\\"[^"]+\\\"   {
123                         BEGIN 0;
124                         yytext[yyleng-2] = '"';
125                         yytext[yyleng-1] = '\0';
126                         yylval.str = strdup(yytext + 1);
127                         return(ID);
128                 }
129 \"[^"]+\"       {
130                         BEGIN 0;
131                         yytext[yyleng-1] = '\0';
132                         yylval.str = strdup(yytext + 1);
133                         return(ID);
134                 }
135 <TOEOL>[^# \t\n]*       {
136                         BEGIN 0;
137                         yylval.str = strdup(yytext);
138                         return(ID);
139                 }
140 0[0-7]*         {
141                         yylval.val = octal(yytext);
142                         return(NUMBER);
143                 }
144 0x[0-9a-fA-F]+  {
145                         yylval.val = hex(yytext);
146                         return(NUMBER);
147                 }
148 -?[1-9][0-9]*   {
149                         yylval.val = atoi(yytext);
150                         return(NUMBER);
151                 }
152 [0-9]"."[0-9]*  {
153                         yylval.val = (int)(60 * atof(yytext) + 0.5);
154                         return(FPNUMBER);
155                 }
156 "?"             {
157                         yylval.val = -1;
158                         return(NUMBER);
159                 }
160 \n/[ \t]        {
161                         yyline++;
162                 }
163 \n              {
164                         yyline++;
165                         return(SEMICOLON);
166                 }
167 #.*             {       /* Ignored (comment) */;        }
168 [ \t\f]*        {       /* Ignored (white space) */;    }
169 ";"             {       return(SEMICOLON);              }
170 ","             {       return(COMMA);                  }
171 "="             {       BEGIN TOEOL; return(EQUALS);    }
172 "@"             {       return(AT);                     }
173 .               {       return(yytext[0]);              }
174
175 %%
176 /*
177  * kw_lookup
178  *      Look up a string in the keyword table.  Returns a -1 if the
179  *      string is not a keyword otherwise it returns the keyword number
180  */
181
182 int
183 kw_lookup(char *word)
184 {
185         struct kt *kp;
186
187         for (kp = key_words; kp->kt_name != NULL; kp++)
188                 if (!strcmp(word, kp->kt_name))
189                         return(kp->kt_val);
190         return(-1);
191 }
192
193 /*
194  * Number conversion routines
195  */
196
197 int
198 octal(char *str)
199 {
200         int num;
201
202         sscanf(str, "%o", &num);
203         return(num);
204 }
205
206 int
207 hex(char *str)
208 {
209         int num;
210
211         sscanf(str + 2, "%x", &num);
212         return(num);
213 }