Commit | Line | Data |
---|---|---|
bc2ed385 | 1 | %{ |
cd68466f DF |
2 | |
3 | /* | |
4 | * Copyright (c) 1980 Regents of the University of California. | |
5 | * All rights reserved. The Berkeley software License Agreement | |
6 | * specifies the terms and conditions for redistribution. | |
7 | * | |
a0105456 | 8 | * @(#)lang.l 5.3 (Berkeley) %G% |
cd68466f | 9 | */ |
bc2ed385 MT |
10 | |
11 | #include <ctype.h> | |
12 | #include "y.tab.h" | |
13 | #include "config.h" | |
14 | ||
15 | #define tprintf if (do_trace) printf | |
b3043913 | 16 | |
bc2ed385 MT |
17 | /* |
18 | * Key word table | |
19 | */ | |
20 | ||
21 | struct kt { | |
22 | char *kt_name; | |
23 | int kt_val; | |
24 | } key_words[] = { | |
36edb824 SL |
25 | { "and", AND }, |
26 | { "args", ARGS }, | |
27 | { "at", AT }, | |
28 | { "config", CONFIG }, | |
29 | { "controller", CONTROLLER }, | |
30 | { "cpu", CPU }, | |
31 | { "csr", CSR }, | |
32 | { "device", DEVICE }, | |
33 | { "disk", DISK }, | |
34 | { "drive", DRIVE }, | |
35 | { "dst", DST }, | |
36 | { "dumps", DUMPS }, | |
37 | { "flags", FLAGS }, | |
38 | { "hz", HZ }, | |
39 | { "ident", IDENT }, | |
40 | { "machine", MACHINE }, | |
41 | { "major", MAJOR }, | |
7c1d4665 | 42 | { "makeoptions", MAKEOPTIONS }, |
36edb824 SL |
43 | { "master", MASTER }, |
44 | { "maxusers", MAXUSERS }, | |
45 | { "mba", MBA }, | |
46 | { "minor", MINOR }, | |
47 | { "nexus", NEXUS }, | |
48 | { "on", ON }, | |
49 | { "options", OPTIONS }, | |
50 | { "priority", PRIORITY }, | |
51 | { "pseudo-device",PSEUDO_DEVICE }, | |
52 | { "root", ROOT }, | |
53 | { "size", SIZE }, | |
54 | { "slave", SLAVE }, | |
55 | { "swap", SWAP }, | |
56 | { "tape", DEVICE }, | |
57 | { "timezone", TIMEZONE }, | |
58 | { "trace", TRACE }, | |
59 | { "uba", UBA }, | |
a0105456 | 60 | { "vba", VBA }, |
36edb824 SL |
61 | { "vector", VECTOR }, |
62 | { 0, 0 }, | |
bc2ed385 MT |
63 | }; |
64 | %} | |
b3043913 | 65 | WORD [A-Za-z_][-A-Za-z_]* |
bc2ed385 MT |
66 | %% |
67 | {WORD} { | |
68 | int i; | |
69 | ||
70 | if ((i = kw_lookup(yytext)) == -1) | |
71 | { | |
22d68ad0 | 72 | yylval.str = yytext; |
bc2ed385 MT |
73 | tprintf("id(%s) ", yytext); |
74 | return ID; | |
75 | } | |
76 | tprintf("(%s) ", yytext); | |
77 | return i; | |
78 | } | |
dea0cacc MT |
79 | \"[^"]+\" { |
80 | yytext[strlen(yytext)-1] = '\0'; | |
36edb824 | 81 | yylval.str = yytext + 1; |
dea0cacc MT |
82 | return ID; |
83 | } | |
bc2ed385 | 84 | 0[0-7]* { |
22d68ad0 BJ |
85 | yylval.val = octal(yytext); |
86 | tprintf("#O:%o ", yylval.val); | |
bc2ed385 MT |
87 | return NUMBER; |
88 | } | |
4cab9f3e | 89 | 0x[0-9a-fA-F]+ { |
22d68ad0 BJ |
90 | yylval.val = hex(yytext); |
91 | tprintf("#X:%x ", yylval.val); | |
bc2ed385 MT |
92 | return NUMBER; |
93 | } | |
94 | [1-9][0-9]* { | |
22d68ad0 BJ |
95 | yylval.val = atoi(yytext); |
96 | tprintf("#D:%d ", yylval.val); | |
bc2ed385 MT |
97 | return NUMBER; |
98 | } | |
a5e18d6b | 99 | [0-9]"."[0-9]* { |
22d68ad0 BJ |
100 | double atof(); |
101 | yylval.val = (int) (60 * atof(yytext) + 0.5); | |
a5e18d6b MT |
102 | return FPNUMBER; |
103 | } | |
57b7808b BJ |
104 | "-" { |
105 | return MINUS; | |
106 | } | |
bc2ed385 | 107 | "?" { |
22d68ad0 | 108 | yylval.val = -1; |
bc2ed385 MT |
109 | tprintf("? "); |
110 | return NUMBER; | |
111 | } | |
112 | \n/[ \t] { | |
113 | yyline++; | |
114 | tprintf("\n... "); | |
115 | } | |
116 | \n { | |
117 | yyline++; | |
118 | tprintf("\n"); | |
119 | return SEMICOLON; | |
120 | } | |
45a827f6 | 121 | #.* { /* Ignored (comment) */; } |
bc2ed385 MT |
122 | [ \t]* { /* Ignored (white space) */; } |
123 | ";" { return SEMICOLON; } | |
9c98d1fb | 124 | "," { return COMMA; } |
45a827f6 | 125 | "=" { return EQUALS; } |
0bf41cfc | 126 | "@" { return AT; } |
45a827f6 RE |
127 | . { return yytext[0]; } |
128 | ||
bc2ed385 MT |
129 | %% |
130 | /* | |
131 | * kw_lookup | |
132 | * Look up a string in the keyword table. Returns a -1 if the | |
133 | * string is not a keyword otherwise it returns the keyword number | |
134 | */ | |
135 | ||
136 | kw_lookup(word) | |
137 | register char *word; | |
138 | { | |
139 | register struct kt *kp; | |
140 | ||
141 | for (kp = key_words; kp->kt_name != 0; kp++) | |
142 | if (eq(word, kp->kt_name)) | |
143 | return kp->kt_val; | |
144 | return -1; | |
145 | } | |
146 | ||
147 | /* | |
148 | * Number conversion routines | |
149 | */ | |
150 | ||
151 | octal(str) | |
152 | char *str; | |
153 | { | |
154 | int num; | |
155 | ||
22d68ad0 | 156 | (void) sscanf(str, "%o", &num); |
bc2ed385 MT |
157 | return num; |
158 | } | |
159 | ||
160 | hex(str) | |
161 | char *str; | |
162 | { | |
163 | int num; | |
164 | ||
22d68ad0 | 165 | (void) sscanf(str+2, "%x", &num); |
bc2ed385 MT |
166 | return num; |
167 | } |