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984263bc MD |
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 | */ | |
37 | ||
38 | #include <ctype.h> | |
39 | #include <string.h> | |
40 | #include "y.tab.h" | |
41 | #include "config.h" | |
42 | ||
984263bc MD |
43 | /* |
44 | * Key word table | |
45 | */ | |
46 | ||
47 | struct kt { | |
67c34974 | 48 | const char *kt_name; |
984263bc MD |
49 | int kt_val; |
50 | } key_words[] = { | |
51 | { "at", AT }, | |
52 | { "bus", BUS }, | |
984263bc | 53 | { "config", CONFIG }, |
984263bc MD |
54 | { "cpu", CPU }, |
55 | { "device", DEVICE }, | |
56 | { "disable", DISABLE }, | |
984263bc MD |
57 | { "drive", DRIVE }, |
58 | { "drq", DRQ }, | |
59 | { "flags", FLAGS }, | |
60 | { "ident", IDENT }, | |
61 | { "iomem", IOMEM }, | |
62 | { "iosiz", IOSIZ }, | |
63 | { "irq", IRQ }, | |
e2ea6619 MD |
64 | { "machine", CONFIG_MACHINE }, |
65 | { "machine_arch", CONFIG_MACHINE_ARCH }, | |
984263bc MD |
66 | { "makeoptions", MAKEOPTIONS }, |
67 | { "maxusers", MAXUSERS }, | |
68 | { "nexus", NEXUS }, | |
69 | { "option", OPTIONS }, | |
70 | { "options", OPTIONS }, | |
0955fd91 | 71 | { "platform", CONFIG_PLATFORM }, |
984263bc MD |
72 | { "port", PORT }, |
73 | { "pseudo-device",PSEUDO_DEVICE }, | |
984263bc MD |
74 | { "target", TARGET }, |
75 | { "unit", UNIT }, | |
76 | { 0, 0 }, | |
77 | }; | |
78 | ||
79 | ||
2d8a3be7 EN |
80 | int kw_lookup(char *); |
81 | int octal(char *); | |
82 | int hex(char *); | |
984263bc MD |
83 | |
84 | %} | |
85 | WORD [A-Za-z_][-A-Za-z_]* | |
86 | ID [A-Za-z_][-A-Za-z_0-9]* | |
87 | %START NONUM TOEOL | |
eb74dec6 JM |
88 | %option noinput |
89 | %option nounput | |
984263bc MD |
90 | %% |
91 | <NONUM>{WORD} { | |
92 | int i; | |
93 | ||
94 | BEGIN 0; | |
95 | if ((i = kw_lookup(yytext)) == -1) | |
96 | { | |
97 | yylval.str = strdup(yytext); | |
1c5ef3d3 | 98 | return(ID); |
984263bc | 99 | } |
52da1405 | 100 | return(i); |
984263bc MD |
101 | } |
102 | <INITIAL>{WORD}/[0-9]* { | |
103 | int i; | |
104 | ||
105 | if ((i = kw_lookup(yytext)) == -1) | |
106 | REJECT; | |
7c34091c | 107 | if (i == DEVICE || i == PSEUDO_DEVICE || i == AT) |
984263bc | 108 | BEGIN NONUM; |
52da1405 | 109 | return(i); |
984263bc MD |
110 | } |
111 | <INITIAL>{ID} { | |
112 | BEGIN 0; | |
113 | yylval.str = strdup(yytext); | |
52da1405 | 114 | return(ID); |
984263bc MD |
115 | } |
116 | \\\"[^"]+\\\" { | |
117 | BEGIN 0; | |
118 | yytext[yyleng-2] = '"'; | |
119 | yytext[yyleng-1] = '\0'; | |
120 | yylval.str = strdup(yytext + 1); | |
52da1405 | 121 | return(ID); |
984263bc MD |
122 | } |
123 | \"[^"]+\" { | |
124 | BEGIN 0; | |
125 | yytext[yyleng-1] = '\0'; | |
126 | yylval.str = strdup(yytext + 1); | |
52da1405 | 127 | return(ID); |
984263bc MD |
128 | } |
129 | <TOEOL>[^# \t\n]* { | |
130 | BEGIN 0; | |
131 | yylval.str = strdup(yytext); | |
52da1405 | 132 | return(ID); |
984263bc MD |
133 | } |
134 | 0[0-7]* { | |
135 | yylval.val = octal(yytext); | |
52da1405 | 136 | return(NUMBER); |
984263bc MD |
137 | } |
138 | 0x[0-9a-fA-F]+ { | |
139 | yylval.val = hex(yytext); | |
52da1405 | 140 | return(NUMBER); |
984263bc MD |
141 | } |
142 | -?[1-9][0-9]* { | |
143 | yylval.val = atoi(yytext); | |
52da1405 | 144 | return(NUMBER); |
984263bc MD |
145 | } |
146 | [0-9]"."[0-9]* { | |
52da1405 EN |
147 | yylval.val = (int)(60 * atof(yytext) + 0.5); |
148 | return(FPNUMBER); | |
984263bc MD |
149 | } |
150 | "?" { | |
151 | yylval.val = -1; | |
52da1405 | 152 | return(NUMBER); |
984263bc MD |
153 | } |
154 | \n/[ \t] { | |
155 | yyline++; | |
156 | } | |
157 | \n { | |
158 | yyline++; | |
52da1405 | 159 | return(SEMICOLON); |
984263bc MD |
160 | } |
161 | #.* { /* Ignored (comment) */; } | |
162 | [ \t\f]* { /* Ignored (white space) */; } | |
52da1405 EN |
163 | ";" { return(SEMICOLON); } |
164 | "," { return(COMMA); } | |
165 | "=" { BEGIN TOEOL; return(EQUALS); } | |
166 | "@" { return(AT); } | |
167 | . { return(yytext[0]); } | |
984263bc MD |
168 | |
169 | %% | |
170 | /* | |
171 | * kw_lookup | |
172 | * Look up a string in the keyword table. Returns a -1 if the | |
173 | * string is not a keyword otherwise it returns the keyword number | |
174 | */ | |
175 | ||
176 | int | |
c0c7f013 | 177 | kw_lookup(char *word) |
984263bc | 178 | { |
c0c7f013 | 179 | struct kt *kp; |
984263bc | 180 | |
52c13bff | 181 | for (kp = key_words; kp->kt_name != NULL; kp++) |
227147e5 | 182 | if (!strcmp(word, kp->kt_name)) |
52da1405 EN |
183 | return(kp->kt_val); |
184 | return(-1); | |
984263bc MD |
185 | } |
186 | ||
187 | /* | |
188 | * Number conversion routines | |
189 | */ | |
190 | ||
191 | int | |
c0c7f013 | 192 | octal(char *str) |
984263bc MD |
193 | { |
194 | int num; | |
195 | ||
08fdb9c1 | 196 | sscanf(str, "%o", &num); |
52da1405 | 197 | return(num); |
984263bc MD |
198 | } |
199 | ||
200 | int | |
c0c7f013 | 201 | hex(char *str) |
984263bc MD |
202 | { |
203 | int num; | |
204 | ||
08fdb9c1 | 205 | sscanf(str + 2, "%x", &num); |
52da1405 | 206 | return(num); |
984263bc | 207 | } |