Commit | Line | Data |
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f3a0bf5c | 1 | /* Deal with the X Resource Manager. |
3a22ee35 | 2 | Copyright (C) 1990, 1993, 1994 Free Software Foundation. |
f3a0bf5c JB |
3 | |
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
d4327fec | 6 | the Free Software Foundation; either version 2, or (at your option) |
f3a0bf5c JB |
7 | any later version. |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; see the file COPYING. If not, write to | |
16 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
17 | ||
18 | /* Written by jla, 4/90 */ | |
19 | ||
a2a4d43e | 20 | #ifdef emacs |
18160b98 | 21 | #include <config.h> |
a2a4d43e JB |
22 | #endif |
23 | ||
837255fb JB |
24 | #include <stdio.h> |
25 | ||
a2a4d43e JB |
26 | #if 1 /* I'd really appreciate it if this code could go away... -JimB */ |
27 | /* this avoids lossage in the `dual-universe' headers on AT&T SysV X11 */ | |
28 | #ifdef USG5 | |
8f510a71 | 29 | #ifndef SYSV |
a2a4d43e | 30 | #define SYSV |
8f510a71 | 31 | #endif |
a2a4d43e JB |
32 | #include <unistd.h> |
33 | #endif /* USG5 */ | |
34 | ||
35 | #endif /* 1 */ | |
54c908b5 | 36 | |
f3a0bf5c JB |
37 | #include <X11/Xlib.h> |
38 | #include <X11/Xatom.h> | |
dfc35f5f | 39 | #if 0 |
f3a0bf5c | 40 | #include <X11/Xos.h> |
dfc35f5f | 41 | #endif |
f3a0bf5c JB |
42 | #include <X11/X.h> |
43 | #include <X11/Xutil.h> | |
44 | #include <X11/Xresource.h> | |
531ff254 JB |
45 | #ifdef VMS |
46 | #include "vms-pwd.h" | |
47 | #else | |
f3a0bf5c | 48 | #include <pwd.h> |
531ff254 | 49 | #endif |
f3a0bf5c JB |
50 | #include <sys/stat.h> |
51 | ||
0f2cd61f RS |
52 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
53 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
54 | #endif | |
55 | ||
f3a0bf5c | 56 | extern char *getenv (); |
3d5d61ae JB |
57 | |
58 | /* This does cause trouble on AIX. I'm going to take the comment at | |
59 | face value. */ | |
60 | #if 0 | |
dfc35f5f JB |
61 | extern short getuid (); /* If this causes portability problems, |
62 | I think we should just delete it; it'll | |
63 | default to `int' anyway. */ | |
3d5d61ae JB |
64 | #endif |
65 | ||
2d487ae5 | 66 | #ifdef DECLARE_GETPWUID_WITH_UID_T |
3e0be4d0 RS |
67 | extern struct passwd *getpwuid (uid_t); |
68 | extern struct passwd *getpwnam (const char *); | |
69 | #else | |
f3a0bf5c JB |
70 | extern struct passwd *getpwuid (); |
71 | extern struct passwd *getpwnam (); | |
3e0be4d0 | 72 | #endif |
f3a0bf5c | 73 | |
e29ad342 KH |
74 | extern char *get_system_name (); |
75 | ||
837255fb JB |
76 | /* Make sure not to #include anything after these definitions. Let's |
77 | not step on anyone's prototypes. */ | |
78 | #ifdef emacs | |
79 | #define malloc xmalloc | |
80 | #define realloc xrealloc | |
81 | #define free xfree | |
82 | #endif | |
83 | ||
84 | char *x_get_string_resource (); | |
85 | static int file_p (); | |
86 | ||
87 | \f | |
88 | /* X file search path processing. */ | |
89 | ||
90 | ||
91 | /* The string which gets substituted for the %C escape in XFILESEARCHPATH | |
92 | and friends, or zero if none was specified. */ | |
93 | char *x_customization_string; | |
94 | ||
95 | ||
96 | /* Return the value of the emacs.customization (Emacs.Customization) | |
97 | resource, for later use in search path decoding. If we find no | |
98 | such resource, return zero. */ | |
99 | char * | |
100 | x_get_customization_string (db, name, class) | |
101 | XrmDatabase db; | |
102 | char *name, *class; | |
103 | { | |
104 | char *full_name | |
105 | = (char *) alloca (strlen (name) + sizeof ("customization") + 3); | |
106 | char *full_class | |
107 | = (char *) alloca (strlen (class) + sizeof ("Customization") + 3); | |
108 | char *result; | |
109 | ||
110 | sprintf (full_name, "%s.%s", name, "customization"); | |
111 | sprintf (full_class, "%s.%s", class, "Customization"); | |
112 | ||
113 | result = x_get_string_resource (db, full_name, full_class); | |
114 | ||
115 | if (result) | |
abfc2e5f RS |
116 | { |
117 | char *copy = (char *) malloc (strlen (result) + 1); | |
118 | strcpy (copy, result); | |
119 | return copy; | |
120 | } | |
837255fb JB |
121 | else |
122 | return 0; | |
123 | } | |
124 | ||
125 | ||
126 | /* Expand all the Xt-style %-escapes in STRING, whose length is given | |
127 | by STRING_LEN. Here are the escapes we're supposed to recognize: | |
128 | ||
129 | %N The value of the application's class name | |
130 | %T The value of the type parameter ("app-defaults" in this | |
131 | context) | |
132 | %S The value of the suffix parameter ("" in this context) | |
133 | %L The language string associated with the specified display | |
134 | (We use the "LANG" environment variable here, if it's set.) | |
135 | %l The language part of the display's language string | |
136 | (We treat this just like %L. If someone can tell us what | |
137 | we're really supposed to do, dandy.) | |
138 | %t The territory part of the display's language string | |
139 | (This never gets used.) | |
140 | %c The codeset part of the display's language string | |
141 | (This never gets used either.) | |
142 | %C The customization string retrieved from the resource | |
143 | database associated with display. | |
144 | (This is x_customization_string.) | |
145 | ||
146 | Return the expanded file name if it exists and is readable, and | |
147 | refers to %L only when the LANG environment variable is set, or | |
148 | otherwise provided by X. | |
149 | ||
150 | ESCAPED_SUFFIX and SUFFIX are postpended to STRING if they are | |
151 | non-zero. %-escapes in ESCAPED_SUFFIX are expanded; STRING is left | |
152 | alone. | |
153 | ||
154 | Return NULL otherwise. */ | |
155 | ||
156 | static char * | |
157 | magic_file_p (string, string_len, class, escaped_suffix, suffix) | |
158 | char *string; | |
159 | int string_len; | |
160 | char *class, *escaped_suffix, *suffix; | |
161 | { | |
162 | char *lang = getenv ("LANG"); | |
163 | ||
164 | int path_size = 100; | |
165 | char *path = (char *) malloc (path_size); | |
166 | int path_len = 0; | |
167 | ||
168 | char *p = string; | |
169 | ||
170 | while (p < string + string_len) | |
171 | { | |
172 | /* The chunk we're about to stick on the end of result. */ | |
173 | char *next; | |
174 | int next_len; | |
175 | ||
176 | if (*p == '%') | |
177 | { | |
178 | p++; | |
179 | ||
180 | if (p >= string + string_len) | |
181 | next_len = 0; | |
182 | else | |
183 | switch (*p) | |
184 | { | |
185 | case '%': | |
186 | next = "%"; | |
187 | next_len = 1; | |
188 | break; | |
189 | ||
190 | case 'C': | |
191 | next = (x_customization_string | |
192 | ? x_customization_string | |
193 | : ""); | |
194 | next_len = strlen (next); | |
195 | break; | |
196 | ||
197 | case 'N': | |
198 | next = class; | |
199 | next_len = strlen (class); | |
200 | break; | |
201 | ||
202 | case 'T': | |
203 | next = "app-defaults"; | |
204 | next_len = strlen (next); | |
205 | break; | |
206 | ||
207 | default: | |
208 | case 'S': | |
209 | next_len = 0; | |
210 | break; | |
211 | ||
212 | case 'L': | |
213 | case 'l': | |
214 | if (! lang) | |
215 | { | |
216 | free (path); | |
217 | return NULL; | |
218 | } | |
219 | ||
220 | next = lang; | |
221 | next_len = strlen (next); | |
222 | break; | |
223 | ||
224 | case 't': | |
225 | case 'c': | |
226 | free (path); | |
227 | return NULL; | |
228 | } | |
229 | } | |
230 | else | |
231 | next = p, next_len = 1; | |
232 | ||
233 | /* Do we have room for this component followed by a '\0' ? */ | |
234 | if (path_len + next_len + 1 > path_size) | |
235 | { | |
236 | path_size = (path_len + next_len + 1) * 2; | |
237 | path = (char *) realloc (path, path_size); | |
238 | } | |
239 | ||
240 | bcopy (next, path + path_len, next_len); | |
241 | path_len += next_len; | |
242 | ||
243 | p++; | |
244 | ||
245 | /* If we've reached the end of the string, append ESCAPED_SUFFIX. */ | |
246 | if (p >= string + string_len && escaped_suffix) | |
247 | { | |
248 | string = escaped_suffix; | |
249 | string_len = strlen (string); | |
250 | p = string; | |
251 | escaped_suffix = NULL; | |
252 | } | |
253 | } | |
254 | ||
255 | /* Perhaps we should add the SUFFIX now. */ | |
256 | if (suffix) | |
257 | { | |
258 | int suffix_len = strlen (suffix); | |
259 | ||
260 | if (path_len + suffix_len + 1 > path_size) | |
261 | { | |
262 | path_size = (path_len + suffix_len + 1); | |
263 | path = (char *) realloc (path, path_size); | |
264 | } | |
265 | ||
266 | bcopy (suffix, path + path_len, suffix_len); | |
267 | path_len += suffix_len; | |
268 | } | |
269 | ||
270 | path[path_len] = '\0'; | |
271 | ||
272 | if (! file_p (path)) | |
273 | { | |
274 | free (path); | |
275 | return NULL; | |
276 | } | |
277 | ||
278 | return path; | |
279 | } | |
280 | ||
281 | ||
f3a0bf5c | 282 | static char * |
837255fb | 283 | gethomedir () |
f3a0bf5c | 284 | { |
f3a0bf5c JB |
285 | struct passwd *pw; |
286 | char *ptr; | |
837255fb | 287 | char *copy; |
f3a0bf5c JB |
288 | |
289 | if ((ptr = getenv ("HOME")) == NULL) | |
290 | { | |
1cac1f6f KH |
291 | if ((ptr = getenv ("LOGNAME")) != NULL |
292 | || (ptr = getenv ("USER")) != NULL) | |
f3a0bf5c JB |
293 | pw = getpwnam (ptr); |
294 | else | |
1cac1f6f | 295 | pw = getpwuid (getuid ()); |
837255fb | 296 | |
f3a0bf5c JB |
297 | if (pw) |
298 | ptr = pw->pw_dir; | |
f3a0bf5c JB |
299 | } |
300 | ||
837255fb JB |
301 | if (ptr == NULL) |
302 | return "/"; | |
f3a0bf5c | 303 | |
837255fb JB |
304 | copy = (char *) malloc (strlen (ptr) + 2); |
305 | strcpy (copy, ptr); | |
306 | strcat (copy, "/"); | |
f3a0bf5c | 307 | |
837255fb | 308 | return copy; |
f3a0bf5c JB |
309 | } |
310 | ||
837255fb | 311 | |
f3a0bf5c JB |
312 | static int |
313 | file_p (path) | |
314 | char *path; | |
315 | { | |
316 | struct stat status; | |
317 | ||
dfc35f5f | 318 | return (access (path, 4) == 0 /* exists and is readable */ |
f3a0bf5c | 319 | && stat (path, &status) == 0 /* get the status */ |
0f2cd61f | 320 | && (S_ISDIR (status.st_mode)) == 0); /* not a directory */ |
f3a0bf5c JB |
321 | } |
322 | ||
f3a0bf5c | 323 | |
837255fb JB |
324 | /* Find the first element of SEARCH_PATH which exists and is readable, |
325 | after expanding the %-escapes. Return 0 if we didn't find any, and | |
326 | the path name of the one we found otherwise. */ | |
f3a0bf5c | 327 | |
837255fb JB |
328 | static char * |
329 | search_magic_path (search_path, class, escaped_suffix, suffix) | |
330 | char *search_path, *class, *escaped_suffix, *suffix; | |
f3a0bf5c | 331 | { |
837255fb | 332 | register char *s, *p; |
d4327fec | 333 | |
837255fb | 334 | for (s = search_path; *s; s = p) |
f3a0bf5c | 335 | { |
837255fb JB |
336 | for (p = s; *p && *p != ':'; p++) |
337 | ; | |
338 | ||
0f2cd61f | 339 | if (p > s) |
f3a0bf5c | 340 | { |
0f2cd61f | 341 | char *path = magic_file_p (s, p - s, class, escaped_suffix, suffix); |
837255fb JB |
342 | if (path) |
343 | return path; | |
f3a0bf5c | 344 | } |
0f2cd61f | 345 | else if (*p == ':') |
f3a0bf5c | 346 | { |
0f2cd61f RS |
347 | char *path; |
348 | ||
349 | s = "%N%S"; | |
350 | path = magic_file_p (s, strlen (s), class, escaped_suffix, suffix); | |
837255fb JB |
351 | if (path) |
352 | return path; | |
f3a0bf5c JB |
353 | } |
354 | ||
837255fb JB |
355 | if (*p == ':') |
356 | p++; | |
f3a0bf5c JB |
357 | } |
358 | ||
359 | return 0; | |
360 | } | |
361 | \f | |
837255fb JB |
362 | /* Producing databases for individual sources. */ |
363 | ||
364 | #define X_DEFAULT_SEARCH_PATH "/usr/lib/X11/%L/%T/%N%C%S:/usr/lib/X11/%l/%T/%N%C%S:/usr/lib/X11/%T/%N%C%S:/usr/lib/X11/%L/%T/%N%S:/usr/lib/X11/%l/%T/%N%S:/usr/lib/X11/%T/%N%S" | |
365 | ||
f3a0bf5c JB |
366 | static XrmDatabase |
367 | get_system_app (class) | |
368 | char *class; | |
369 | { | |
837255fb JB |
370 | XrmDatabase db = NULL; |
371 | char *path; | |
f3a0bf5c | 372 | |
837255fb JB |
373 | path = getenv ("XFILESEARCHPATH"); |
374 | if (! path) path = X_DEFAULT_SEARCH_PATH; | |
f3a0bf5c | 375 | |
837255fb JB |
376 | path = search_magic_path (path, class, 0, 0); |
377 | if (path) | |
378 | { | |
379 | db = XrmGetFileDatabase (path); | |
380 | free (path); | |
381 | } | |
f3a0bf5c | 382 | |
f3a0bf5c JB |
383 | return db; |
384 | } | |
385 | ||
837255fb | 386 | |
f3a0bf5c JB |
387 | static XrmDatabase |
388 | get_fallback (display) | |
389 | Display *display; | |
390 | { | |
391 | XrmDatabase db; | |
392 | ||
393 | return NULL; | |
394 | } | |
395 | ||
837255fb | 396 | |
f3a0bf5c JB |
397 | static XrmDatabase |
398 | get_user_app (class) | |
399 | char *class; | |
400 | { | |
837255fb JB |
401 | char *path; |
402 | char *file = 0; | |
403 | ||
404 | /* Check for XUSERFILESEARCHPATH. It is a path of complete file | |
405 | names, not directories. */ | |
406 | if (((path = getenv ("XUSERFILESEARCHPATH")) | |
407 | && (file = search_magic_path (path, class, 0, 0))) | |
408 | ||
409 | /* Check for APPLRESDIR; it is a path of directories. In each, | |
410 | we have to search for LANG/CLASS and then CLASS. */ | |
411 | || ((path = getenv ("XAPPLRESDIR")) | |
412 | && ((file = search_magic_path (path, class, "/%L/%N", 0)) | |
413 | || (file = search_magic_path (path, class, "/%N", 0)))) | |
414 | ||
415 | /* Check in the home directory. This is a bit of a hack; let's | |
416 | hope one's home directory doesn't contain any %-escapes. */ | |
417 | || (path = gethomedir (), | |
418 | ((file = search_magic_path (path, class, "%L/%N", 0)) | |
419 | || (file = search_magic_path (path, class, "%N", 0))))) | |
f3a0bf5c | 420 | { |
837255fb JB |
421 | XrmDatabase db = XrmGetFileDatabase (file); |
422 | free (file); | |
423 | return db; | |
f3a0bf5c | 424 | } |
837255fb | 425 | else |
f3a0bf5c | 426 | return NULL; |
f3a0bf5c JB |
427 | } |
428 | ||
837255fb | 429 | |
f3a0bf5c JB |
430 | static XrmDatabase |
431 | get_user_db (display) | |
432 | Display *display; | |
433 | { | |
434 | XrmDatabase db; | |
435 | char *xdefs; | |
436 | ||
2c8d1900 | 437 | #ifdef PBaseSize /* Cheap way to test for X11R4 or later. */ |
b631f177 JB |
438 | xdefs = XResourceManagerString (display); |
439 | #else | |
a2a4d43e | 440 | xdefs = display->xdefaults; |
b631f177 JB |
441 | #endif |
442 | ||
f3a0bf5c JB |
443 | if (xdefs != NULL) |
444 | db = XrmGetStringDatabase (xdefs); | |
445 | else | |
446 | { | |
837255fb JB |
447 | char *home; |
448 | char *xdefault; | |
f3a0bf5c | 449 | |
837255fb JB |
450 | home = gethomedir (); |
451 | xdefault = (char *) malloc (strlen (home) + sizeof (".Xdefaults")); | |
452 | strcpy (xdefault, home); | |
f3a0bf5c JB |
453 | strcat (xdefault, ".Xdefaults"); |
454 | db = XrmGetFileDatabase (xdefault); | |
837255fb JB |
455 | free (home); |
456 | free (xdefault); | |
f3a0bf5c JB |
457 | } |
458 | ||
d8717d15 | 459 | #ifdef HAVE_XSCREENRESOURCESTRING |
9b37b1c2 JB |
460 | /* Get the screen-specific resources too. */ |
461 | xdefs = XScreenResourceString (DefaultScreenOfDisplay (display)); | |
462 | if (xdefs != NULL) | |
fdce0b39 JB |
463 | { |
464 | XrmMergeDatabases (XrmGetStringDatabase (xdefs), &db); | |
465 | XFree (xdefs); | |
466 | } | |
9b37b1c2 JB |
467 | #endif |
468 | ||
f3a0bf5c JB |
469 | return db; |
470 | } | |
471 | ||
472 | static XrmDatabase | |
473 | get_environ_db () | |
474 | { | |
475 | XrmDatabase db; | |
476 | char *p; | |
e29ad342 | 477 | char *path = 0, *home = 0, *host; |
f3a0bf5c JB |
478 | |
479 | if ((p = getenv ("XENVIRONMENT")) == NULL) | |
480 | { | |
837255fb | 481 | home = gethomedir (); |
e29ad342 | 482 | host = get_system_name (); |
837255fb JB |
483 | path = (char *) malloc (strlen (home) |
484 | + sizeof (".Xdefaults-") | |
485 | + strlen (host)); | |
486 | sprintf (path, "%s%s%s", home, ".Xdefaults-", host); | |
f3a0bf5c JB |
487 | p = path; |
488 | } | |
489 | ||
490 | db = XrmGetFileDatabase (p); | |
837255fb JB |
491 | |
492 | if (path) free (path); | |
493 | if (home) free (home); | |
837255fb | 494 | |
f3a0bf5c JB |
495 | return db; |
496 | } | |
497 | \f | |
837255fb JB |
498 | /* External interface. */ |
499 | ||
f3a0bf5c JB |
500 | /* Types of values that we can find in a database */ |
501 | ||
502 | #define XrmStringType "String" /* String representation */ | |
503 | XrmRepresentation x_rm_string; /* Quark representation */ | |
504 | ||
505 | /* Load X resources based on the display and a possible -xrm option. */ | |
506 | ||
507 | XrmDatabase | |
837255fb | 508 | x_load_resources (display, xrm_string, myname, myclass) |
f3a0bf5c | 509 | Display *display; |
837255fb | 510 | char *xrm_string, *myname, *myclass; |
f3a0bf5c JB |
511 | { |
512 | char *xdefs; | |
837255fb | 513 | XrmDatabase user_database; |
f3a0bf5c JB |
514 | XrmDatabase rdb; |
515 | XrmDatabase db; | |
516 | ||
517 | x_rm_string = XrmStringToQuark (XrmStringType); | |
082dc211 RS |
518 | #ifndef USE_X_TOOLKIT |
519 | /* pmr@osf.org says this shouldn't be done if USE_X_TOOLKIT. | |
520 | I suspect it's because the toolkit version does this elsewhere. */ | |
f3a0bf5c | 521 | XrmInitialize (); |
082dc211 | 522 | #endif |
f3a0bf5c JB |
523 | rdb = XrmGetStringDatabase (""); |
524 | ||
837255fb JB |
525 | user_database = get_user_db (display); |
526 | ||
527 | /* Figure out what the "customization string" is, so we can use it | |
528 | to decode paths. */ | |
529 | if (x_customization_string) | |
530 | free (x_customization_string); | |
531 | x_customization_string | |
532 | = x_get_customization_string (user_database, myname, myclass); | |
533 | ||
f3a0bf5c JB |
534 | /* Get application system defaults */ |
535 | db = get_system_app (myclass); | |
536 | if (db != NULL) | |
537 | XrmMergeDatabases (db, &rdb); | |
538 | ||
539 | /* Get Fallback resources */ | |
540 | db = get_fallback (display); | |
541 | if (db != NULL) | |
542 | XrmMergeDatabases (db, &rdb); | |
543 | ||
544 | /* Get application user defaults */ | |
545 | db = get_user_app (myclass); | |
546 | if (db != NULL) | |
547 | XrmMergeDatabases (db, &rdb); | |
548 | ||
549 | /* get User defaults */ | |
837255fb JB |
550 | if (user_database != NULL) |
551 | XrmMergeDatabases (user_database, &rdb); | |
f3a0bf5c JB |
552 | |
553 | /* Get Environment defaults. */ | |
554 | db = get_environ_db (); | |
555 | if (db != NULL) | |
556 | XrmMergeDatabases (db, &rdb); | |
557 | ||
558 | /* Last, merge in any specification from the command line. */ | |
559 | if (xrm_string != NULL) | |
560 | { | |
561 | db = XrmGetStringDatabase (xrm_string); | |
562 | if (db != NULL) | |
563 | XrmMergeDatabases (db, &rdb); | |
564 | } | |
565 | ||
566 | return rdb; | |
567 | } | |
568 | ||
837255fb | 569 | |
f3a0bf5c JB |
570 | /* Retrieve the value of the resource specified by NAME with class CLASS |
571 | and of type TYPE from database RDB. The value is returned in RET_VALUE. */ | |
572 | ||
573 | int | |
574 | x_get_resource (rdb, name, class, expected_type, ret_value) | |
575 | XrmDatabase rdb; | |
576 | char *name, *class; | |
577 | XrmRepresentation expected_type; | |
578 | XrmValue *ret_value; | |
579 | { | |
580 | XrmValue value; | |
581 | XrmName namelist[100]; | |
582 | XrmClass classlist[100]; | |
583 | XrmRepresentation type; | |
584 | ||
585 | XrmStringToNameList(name, namelist); | |
586 | XrmStringToClassList(class, classlist); | |
587 | ||
588 | if (XrmQGetResource (rdb, namelist, classlist, &type, &value) == True | |
589 | && (type == expected_type)) | |
590 | { | |
591 | if (type == x_rm_string) | |
41ab0754 | 592 | ret_value->addr = (char *) value.addr; |
f3a0bf5c JB |
593 | else |
594 | bcopy (value.addr, ret_value->addr, ret_value->size); | |
595 | ||
596 | return value.size; | |
597 | } | |
598 | ||
599 | return 0; | |
600 | } | |
601 | ||
602 | /* Retrieve the string resource specified by NAME with CLASS from | |
603 | database RDB. */ | |
604 | ||
605 | char * | |
606 | x_get_string_resource (rdb, name, class) | |
607 | XrmDatabase rdb; | |
608 | char *name, *class; | |
609 | { | |
610 | XrmValue value; | |
611 | ||
612 | if (x_get_resource (rdb, name, class, x_rm_string, &value)) | |
613 | return (char *) value.addr; | |
614 | ||
615 | return (char *) 0; | |
616 | } | |
617 | \f | |
837255fb JB |
618 | /* Stand-alone test facilities. */ |
619 | ||
f3a0bf5c | 620 | #ifdef TESTRM |
837255fb JB |
621 | |
622 | typedef char **List; | |
623 | #define arg_listify(len, list) (list) | |
624 | #define car(list) (*(list)) | |
625 | #define cdr(list) (list + 1) | |
626 | #define NIL(list) (! *(list)) | |
627 | #define free_arglist(list) | |
628 | ||
629 | static List | |
630 | member (elt, list) | |
631 | char *elt; | |
632 | List list; | |
633 | { | |
634 | List p; | |
635 | ||
636 | for (p = list; ! NIL (p); p = cdr (p)) | |
637 | if (! strcmp (elt, car (p))) | |
638 | return p; | |
639 | ||
640 | return p; | |
641 | } | |
f3a0bf5c JB |
642 | |
643 | static void | |
644 | fatal (msg, prog, x1, x2, x3, x4, x5) | |
645 | char *msg, *prog; | |
646 | int x1, x2, x3, x4, x5; | |
647 | { | |
648 | extern int errno; | |
649 | ||
650 | if (errno) | |
651 | perror (prog); | |
652 | ||
653 | (void) fprintf (stderr, msg, prog, x1, x2, x3, x4, x5); | |
654 | exit (1); | |
655 | } | |
656 | ||
657 | main (argc, argv) | |
658 | int argc; | |
659 | char **argv; | |
660 | { | |
661 | Display *display; | |
837255fb | 662 | char *displayname, *resource_string, *class, *name; |
f3a0bf5c | 663 | XrmDatabase xdb; |
837255fb | 664 | List arg_list, lp; |
f3a0bf5c JB |
665 | |
666 | arg_list = arg_listify (argc, argv); | |
667 | ||
668 | lp = member ("-d", arg_list); | |
669 | if (!NIL (lp)) | |
670 | displayname = car (cdr (lp)); | |
671 | else | |
672 | displayname = "localhost:0.0"; | |
673 | ||
674 | lp = member ("-xrm", arg_list); | |
675 | if (! NIL (lp)) | |
676 | resource_string = car (cdr (lp)); | |
677 | else | |
678 | resource_string = (char *) 0; | |
679 | ||
680 | lp = member ("-c", arg_list); | |
681 | if (! NIL (lp)) | |
682 | class = car (cdr (lp)); | |
683 | else | |
684 | class = "Emacs"; | |
685 | ||
837255fb JB |
686 | lp = member ("-n", arg_list); |
687 | if (! NIL (lp)) | |
688 | name = car (cdr (lp)); | |
689 | else | |
690 | name = "emacs"; | |
f3a0bf5c | 691 | |
837255fb | 692 | free_arglist (arg_list); |
f3a0bf5c JB |
693 | |
694 | if (!(display = XOpenDisplay (displayname))) | |
695 | fatal ("Can't open display '%s'\n", XDisplayName (displayname)); | |
696 | ||
837255fb | 697 | xdb = x_load_resources (display, resource_string, name, class); |
f3a0bf5c | 698 | |
f3a0bf5c JB |
699 | /* In a real program, you'd want to also do this: */ |
700 | display->db = xdb; | |
f3a0bf5c JB |
701 | |
702 | while (1) | |
703 | { | |
837255fb JB |
704 | char query_name[90]; |
705 | char query_class[90]; | |
706 | ||
707 | printf ("Name: "); | |
708 | gets (query_name); | |
f3a0bf5c | 709 | |
837255fb | 710 | if (strlen (query_name)) |
f3a0bf5c | 711 | { |
837255fb JB |
712 | char *value; |
713 | ||
714 | printf ("Class: "); | |
715 | gets (query_class); | |
716 | ||
717 | value = x_get_string_resource (xdb, query_name, query_class); | |
f3a0bf5c JB |
718 | |
719 | if (value != NULL) | |
837255fb | 720 | printf ("\t%s(%s): %s\n\n", query_name, query_class, value); |
f3a0bf5c JB |
721 | else |
722 | printf ("\tNo Value.\n\n"); | |
723 | } | |
724 | else | |
725 | break; | |
726 | } | |
727 | printf ("\tExit.\n\n"); | |
728 | ||
729 | XCloseDisplay (display); | |
730 | } | |
731 | #endif /* TESTRM */ |