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1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
4f5df788 KB |
3 | * All rights reserved. |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
5e8b0e60 KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
22e155fc DF |
16 | */ |
17 | ||
18 | #ifndef lint | |
19 | char copyright[] = | |
20 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
21 | All rights reserved.\n"; | |
4f5df788 | 22 | #endif /* not lint */ |
22e155fc DF |
23 | |
24 | #ifndef lint | |
5e8b0e60 | 25 | static char sccsid[] = "@(#)mkstr.c 5.3 (Berkeley) %G%"; |
4f5df788 | 26 | #endif /* not lint */ |
22e155fc | 27 | |
fe6c8cd8 BJ |
28 | #include <stdio.h> |
29 | ||
30 | #define ungetchar(c) ungetc(c, stdin) | |
31 | ||
32 | long ftell(); | |
33 | char *calloc(); | |
34 | /* | |
35 | * mkstr - create a string error message file by massaging C source | |
36 | * | |
37 | * Bill Joy UCB August 1977 | |
38 | * | |
39 | * Modified March 1978 to hash old messages to be able to recompile | |
40 | * without addding messages to the message file (usually) | |
41 | * | |
42 | * Based on an earlier program conceived by Bill Joy and Chuck Haley | |
43 | * | |
44 | * Program to create a string error message file | |
45 | * from a group of C programs. Arguments are the name | |
46 | * of the file where the strings are to be placed, the | |
47 | * prefix of the new files where the processed source text | |
48 | * is to be placed, and the files to be processed. | |
49 | * | |
50 | * The program looks for 'error("' in the source stream. | |
51 | * Whenever it finds this, the following characters from the '"' | |
52 | * to a '"' are replaced by 'seekpt' where seekpt is a | |
53 | * pointer into the error message file. | |
54 | * If the '(' is not immediately followed by a '"' no change occurs. | |
55 | * | |
56 | * The optional '-' causes strings to be added at the end of the | |
57 | * existing error message file for recompilation of single routines. | |
58 | */ | |
59 | ||
60 | ||
61 | FILE *mesgread, *mesgwrite; | |
62 | char *progname; | |
63 | char usagestr[] = "usage: %s [ - ] mesgfile prefix file ...\n"; | |
64 | char name[100], *np; | |
65 | ||
66 | main(argc, argv) | |
67 | int argc; | |
68 | char *argv[]; | |
69 | { | |
70 | char addon = 0; | |
71 | ||
72 | argc--, progname = *argv++; | |
73 | if (argc > 1 && argv[0][0] == '-') | |
74 | addon++, argc--, argv++; | |
75 | if (argc < 3) | |
76 | fprintf(stderr, usagestr, progname), exit(1); | |
77 | mesgwrite = fopen(argv[0], addon ? "a" : "w"); | |
78 | if (mesgwrite == NULL) | |
79 | perror(argv[0]), exit(1); | |
80 | mesgread = fopen(argv[0], "r"); | |
81 | if (mesgread == NULL) | |
82 | perror(argv[0]), exit(1); | |
83 | inithash(); | |
84 | argc--, argv++; | |
85 | strcpy(name, argv[0]); | |
86 | np = name + strlen(name); | |
87 | argc--, argv++; | |
88 | do { | |
89 | strcpy(np, argv[0]); | |
90 | if (freopen(name, "w", stdout) == NULL) | |
91 | perror(name), exit(1); | |
92 | if (freopen(argv[0], "r", stdin) == NULL) | |
93 | perror(argv[0]), exit(1); | |
94 | process(); | |
95 | argc--, argv++; | |
96 | } while (argc > 0); | |
97 | exit(0); | |
98 | } | |
99 | ||
100 | process() | |
101 | { | |
102 | register char *cp; | |
103 | register c; | |
104 | ||
105 | for (;;) { | |
106 | c = getchar(); | |
107 | if (c == EOF) | |
108 | return; | |
109 | if (c != 'e') { | |
110 | putchar(c); | |
111 | continue; | |
112 | } | |
113 | if (match("error(")) { | |
114 | printf("error("); | |
115 | c = getchar(); | |
116 | if (c != '"') | |
117 | putchar(c); | |
118 | else | |
119 | copystr(); | |
120 | } | |
121 | } | |
122 | } | |
123 | ||
124 | match(ocp) | |
125 | char *ocp; | |
126 | { | |
127 | register char *cp; | |
128 | register c; | |
129 | ||
130 | for (cp = ocp + 1; *cp; cp++) { | |
131 | c = getchar(); | |
132 | if (c != *cp) { | |
133 | while (ocp < cp) | |
134 | putchar(*ocp++); | |
135 | ungetchar(c); | |
136 | return (0); | |
137 | } | |
138 | } | |
139 | return (1); | |
140 | } | |
141 | ||
142 | copystr() | |
143 | { | |
144 | register c, ch; | |
145 | char buf[512]; | |
146 | register char *cp = buf; | |
147 | ||
148 | for (;;) { | |
149 | c = getchar(); | |
150 | if (c == EOF) | |
151 | break; | |
152 | switch (c) { | |
153 | ||
154 | case '"': | |
155 | *cp++ = 0; | |
156 | goto out; | |
157 | case '\\': | |
158 | c = getchar(); | |
159 | switch (c) { | |
160 | ||
161 | case 'b': | |
162 | c = '\b'; | |
163 | break; | |
164 | case 't': | |
165 | c = '\t'; | |
166 | break; | |
167 | case 'r': | |
168 | c = '\r'; | |
169 | break; | |
170 | case 'n': | |
171 | c = '\n'; | |
172 | break; | |
173 | case '\n': | |
174 | continue; | |
175 | case 'f': | |
176 | c = '\f'; | |
177 | break; | |
178 | case '0': | |
179 | c = 0; | |
180 | break; | |
181 | case '\\': | |
182 | break; | |
183 | default: | |
184 | if (!octdigit(c)) | |
185 | break; | |
186 | c -= '0'; | |
187 | ch = getchar(); | |
188 | if (!octdigit(ch)) | |
189 | break; | |
190 | c <<= 7, c += ch - '0'; | |
191 | ch = getchar(); | |
192 | if (!octdigit(ch)) | |
193 | break; | |
194 | c <<= 3, c+= ch - '0', ch = -1; | |
195 | break; | |
196 | } | |
197 | } | |
198 | *cp++ = c; | |
199 | } | |
200 | out: | |
201 | *cp = 0; | |
202 | printf("%d", hashit(buf, 1, NULL)); | |
203 | } | |
204 | ||
205 | octdigit(c) | |
206 | char c; | |
207 | { | |
208 | ||
209 | return (c >= '0' && c <= '7'); | |
210 | } | |
211 | ||
212 | inithash() | |
213 | { | |
214 | char buf[512]; | |
215 | int mesgpt = 0; | |
216 | ||
217 | rewind(mesgread); | |
218 | while (fgetNUL(buf, sizeof buf, mesgread) != NULL) { | |
219 | hashit(buf, 0, mesgpt); | |
220 | mesgpt += strlen(buf) + 2; | |
221 | } | |
222 | } | |
223 | ||
224 | #define NBUCKETS 511 | |
225 | ||
226 | struct hash { | |
227 | long hval; | |
228 | unsigned hpt; | |
229 | struct hash *hnext; | |
230 | } *bucket[NBUCKETS]; | |
231 | ||
232 | hashit(str, really, fakept) | |
233 | char *str; | |
234 | char really; | |
235 | unsigned fakept; | |
236 | { | |
237 | int i; | |
238 | register struct hash *hp; | |
239 | char buf[512]; | |
240 | long hashval = 0; | |
241 | register char *cp; | |
242 | ||
243 | if (really) | |
244 | fflush(mesgwrite); | |
245 | for (cp = str; *cp;) | |
246 | hashval = (hashval << 1) + *cp++; | |
247 | i = hashval % NBUCKETS; | |
248 | if (i < 0) | |
249 | i += NBUCKETS; | |
250 | if (really != 0) | |
251 | for (hp = bucket[i]; hp != 0; hp = hp->hnext) | |
252 | if (hp->hval == hashval) { | |
253 | fseek(mesgread, (long) hp->hpt, 0); | |
254 | fgetNUL(buf, sizeof buf, mesgread); | |
255 | /* | |
256 | fprintf(stderr, "Got (from %d) %s\n", hp->hpt, buf); | |
257 | */ | |
258 | if (strcmp(buf, str) == 0) | |
259 | break; | |
260 | } | |
261 | if (!really || hp == 0) { | |
262 | hp = (struct hash *) calloc(1, sizeof *hp); | |
263 | hp->hnext = bucket[i]; | |
264 | hp->hval = hashval; | |
265 | hp->hpt = really ? ftell(mesgwrite) : fakept; | |
266 | if (really) { | |
267 | fwrite(str, sizeof (char), strlen(str) + 1, mesgwrite); | |
268 | fwrite("\n", sizeof (char), 1, mesgwrite); | |
269 | } | |
270 | bucket[i] = hp; | |
271 | } | |
272 | /* | |
273 | fprintf(stderr, "%s hashed to %ld at %d\n", str, hp->hval, hp->hpt); | |
274 | */ | |
275 | return (hp->hpt); | |
276 | } | |
277 | ||
278 | #include <sys/types.h> | |
279 | #include <sys/stat.h> | |
280 | ||
281 | fgetNUL(obuf, rmdr, file) | |
282 | char *obuf; | |
283 | register int rmdr; | |
284 | FILE *file; | |
285 | { | |
286 | register c; | |
287 | register char *buf = obuf; | |
288 | ||
289 | while (--rmdr > 0 && (c = getc(file)) != 0 && c != EOF) | |
290 | *buf++ = c; | |
291 | *buf++ = 0; | |
292 | getc(file); | |
293 | return ((feof(file) || ferror(file)) ? NULL : 1); | |
294 | } |