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 | 3 | |
3b7ad313 EN |
4 | This file is part of GNU Emacs. |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
f3a0bf5c | 7 | it under the terms of the GNU General Public License as published by |
d4327fec | 8 | the Free Software Foundation; either version 2, or (at your option) |
f3a0bf5c JB |
9 | any later version. |
10 | ||
3b7ad313 | 11 | GNU Emacs is distributed in the hope that it will be useful, |
f3a0bf5c JB |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
3b7ad313 EN |
17 | along with GNU Emacs; see the file COPYING. If not, write to |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
f3a0bf5c JB |
20 | |
21 | /* Written by jla, 4/90 */ | |
22 | ||
a2a4d43e | 23 | #ifdef emacs |
18160b98 | 24 | #include <config.h> |
a2a4d43e JB |
25 | #endif |
26 | ||
012c3e71 RS |
27 | #include <paths.h> |
28 | ||
837255fb JB |
29 | #include <stdio.h> |
30 | ||
a2a4d43e JB |
31 | #if 1 /* I'd really appreciate it if this code could go away... -JimB */ |
32 | /* this avoids lossage in the `dual-universe' headers on AT&T SysV X11 */ | |
33 | #ifdef USG5 | |
8f510a71 | 34 | #ifndef SYSV |
a2a4d43e | 35 | #define SYSV |
8f510a71 | 36 | #endif |
a2a4d43e JB |
37 | #include <unistd.h> |
38 | #endif /* USG5 */ | |
39 | ||
40 | #endif /* 1 */ | |
54c908b5 | 41 | |
f3a0bf5c JB |
42 | #include <X11/Xlib.h> |
43 | #include <X11/Xatom.h> | |
dfc35f5f | 44 | #if 0 |
f3a0bf5c | 45 | #include <X11/Xos.h> |
dfc35f5f | 46 | #endif |
f3a0bf5c JB |
47 | #include <X11/X.h> |
48 | #include <X11/Xutil.h> | |
49 | #include <X11/Xresource.h> | |
531ff254 JB |
50 | #ifdef VMS |
51 | #include "vms-pwd.h" | |
52 | #else | |
f3a0bf5c | 53 | #include <pwd.h> |
531ff254 | 54 | #endif |
f3a0bf5c JB |
55 | #include <sys/stat.h> |
56 | ||
0f2cd61f RS |
57 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
58 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
59 | #endif | |
60 | ||
f3a0bf5c | 61 | extern char *getenv (); |
3d5d61ae JB |
62 | |
63 | /* This does cause trouble on AIX. I'm going to take the comment at | |
64 | face value. */ | |
65 | #if 0 | |
dfc35f5f JB |
66 | extern short getuid (); /* If this causes portability problems, |
67 | I think we should just delete it; it'll | |
68 | default to `int' anyway. */ | |
3d5d61ae JB |
69 | #endif |
70 | ||
2d487ae5 | 71 | #ifdef DECLARE_GETPWUID_WITH_UID_T |
3e0be4d0 RS |
72 | extern struct passwd *getpwuid (uid_t); |
73 | extern struct passwd *getpwnam (const char *); | |
74 | #else | |
f3a0bf5c JB |
75 | extern struct passwd *getpwuid (); |
76 | extern struct passwd *getpwnam (); | |
3e0be4d0 | 77 | #endif |
f3a0bf5c | 78 | |
e29ad342 KH |
79 | extern char *get_system_name (); |
80 | ||
837255fb JB |
81 | /* Make sure not to #include anything after these definitions. Let's |
82 | not step on anyone's prototypes. */ | |
83 | #ifdef emacs | |
84 | #define malloc xmalloc | |
85 | #define realloc xrealloc | |
86 | #define free xfree | |
87 | #endif | |
88 | ||
89 | char *x_get_string_resource (); | |
90 | static int file_p (); | |
91 | ||
92 | \f | |
93 | /* X file search path processing. */ | |
94 | ||
95 | ||
96 | /* The string which gets substituted for the %C escape in XFILESEARCHPATH | |
97 | and friends, or zero if none was specified. */ | |
98 | char *x_customization_string; | |
99 | ||
100 | ||
101 | /* Return the value of the emacs.customization (Emacs.Customization) | |
102 | resource, for later use in search path decoding. If we find no | |
103 | such resource, return zero. */ | |
104 | char * | |
105 | x_get_customization_string (db, name, class) | |
106 | XrmDatabase db; | |
107 | char *name, *class; | |
108 | { | |
109 | char *full_name | |
110 | = (char *) alloca (strlen (name) + sizeof ("customization") + 3); | |
111 | char *full_class | |
112 | = (char *) alloca (strlen (class) + sizeof ("Customization") + 3); | |
113 | char *result; | |
114 | ||
115 | sprintf (full_name, "%s.%s", name, "customization"); | |
116 | sprintf (full_class, "%s.%s", class, "Customization"); | |
117 | ||
118 | result = x_get_string_resource (db, full_name, full_class); | |
119 | ||
120 | if (result) | |
abfc2e5f RS |
121 | { |
122 | char *copy = (char *) malloc (strlen (result) + 1); | |
123 | strcpy (copy, result); | |
124 | return copy; | |
125 | } | |
837255fb JB |
126 | else |
127 | return 0; | |
128 | } | |
129 | ||
130 | ||
131 | /* Expand all the Xt-style %-escapes in STRING, whose length is given | |
132 | by STRING_LEN. Here are the escapes we're supposed to recognize: | |
133 | ||
134 | %N The value of the application's class name | |
135 | %T The value of the type parameter ("app-defaults" in this | |
136 | context) | |
137 | %S The value of the suffix parameter ("" in this context) | |
138 | %L The language string associated with the specified display | |
139 | (We use the "LANG" environment variable here, if it's set.) | |
140 | %l The language part of the display's language string | |
141 | (We treat this just like %L. If someone can tell us what | |
142 | we're really supposed to do, dandy.) | |
143 | %t The territory part of the display's language string | |
144 | (This never gets used.) | |
145 | %c The codeset part of the display's language string | |
146 | (This never gets used either.) | |
147 | %C The customization string retrieved from the resource | |
148 | database associated with display. | |
149 | (This is x_customization_string.) | |
150 | ||
151 | Return the expanded file name if it exists and is readable, and | |
152 | refers to %L only when the LANG environment variable is set, or | |
153 | otherwise provided by X. | |
154 | ||
155 | ESCAPED_SUFFIX and SUFFIX are postpended to STRING if they are | |
156 | non-zero. %-escapes in ESCAPED_SUFFIX are expanded; STRING is left | |
157 | alone. | |
158 | ||
159 | Return NULL otherwise. */ | |
160 | ||
161 | static char * | |
162 | magic_file_p (string, string_len, class, escaped_suffix, suffix) | |
163 | char *string; | |
164 | int string_len; | |
165 | char *class, *escaped_suffix, *suffix; | |
166 | { | |
167 | char *lang = getenv ("LANG"); | |
168 | ||
169 | int path_size = 100; | |
170 | char *path = (char *) malloc (path_size); | |
171 | int path_len = 0; | |
172 | ||
173 | char *p = string; | |
174 | ||
175 | while (p < string + string_len) | |
176 | { | |
177 | /* The chunk we're about to stick on the end of result. */ | |
178 | char *next; | |
179 | int next_len; | |
180 | ||
181 | if (*p == '%') | |
182 | { | |
183 | p++; | |
184 | ||
185 | if (p >= string + string_len) | |
186 | next_len = 0; | |
187 | else | |
188 | switch (*p) | |
189 | { | |
190 | case '%': | |
191 | next = "%"; | |
192 | next_len = 1; | |
193 | break; | |
194 | ||
195 | case 'C': | |
196 | next = (x_customization_string | |
197 | ? x_customization_string | |
198 | : ""); | |
199 | next_len = strlen (next); | |
200 | break; | |
201 | ||
202 | case 'N': | |
203 | next = class; | |
204 | next_len = strlen (class); | |
205 | break; | |
206 | ||
207 | case 'T': | |
208 | next = "app-defaults"; | |
209 | next_len = strlen (next); | |
210 | break; | |
211 | ||
212 | default: | |
213 | case 'S': | |
214 | next_len = 0; | |
215 | break; | |
216 | ||
217 | case 'L': | |
218 | case 'l': | |
219 | if (! lang) | |
220 | { | |
221 | free (path); | |
222 | return NULL; | |
223 | } | |
224 | ||
225 | next = lang; | |
226 | next_len = strlen (next); | |
227 | break; | |
228 | ||
229 | case 't': | |
230 | case 'c': | |
231 | free (path); | |
232 | return NULL; | |
233 | } | |
234 | } | |
235 | else | |
236 | next = p, next_len = 1; | |
237 | ||
238 | /* Do we have room for this component followed by a '\0' ? */ | |
239 | if (path_len + next_len + 1 > path_size) | |
240 | { | |
241 | path_size = (path_len + next_len + 1) * 2; | |
242 | path = (char *) realloc (path, path_size); | |
243 | } | |
244 | ||
245 | bcopy (next, path + path_len, next_len); | |
246 | path_len += next_len; | |
247 | ||
248 | p++; | |
249 | ||
250 | /* If we've reached the end of the string, append ESCAPED_SUFFIX. */ | |
251 | if (p >= string + string_len && escaped_suffix) | |
252 | { | |
253 | string = escaped_suffix; | |
254 | string_len = strlen (string); | |
255 | p = string; | |
256 | escaped_suffix = NULL; | |
257 | } | |
258 | } | |
259 | ||
260 | /* Perhaps we should add the SUFFIX now. */ | |
261 | if (suffix) | |
262 | { | |
263 | int suffix_len = strlen (suffix); | |
264 | ||
265 | if (path_len + suffix_len + 1 > path_size) | |
266 | { | |
267 | path_size = (path_len + suffix_len + 1); | |
268 | path = (char *) realloc (path, path_size); | |
269 | } | |
270 | ||
271 | bcopy (suffix, path + path_len, suffix_len); | |
272 | path_len += suffix_len; | |
273 | } | |
274 | ||
275 | path[path_len] = '\0'; | |
276 | ||
277 | if (! file_p (path)) | |
278 | { | |
279 | free (path); | |
280 | return NULL; | |
281 | } | |
282 | ||
283 | return path; | |
284 | } | |
285 | ||
286 | ||
f3a0bf5c | 287 | static char * |
837255fb | 288 | gethomedir () |
f3a0bf5c | 289 | { |
f3a0bf5c JB |
290 | struct passwd *pw; |
291 | char *ptr; | |
837255fb | 292 | char *copy; |
f3a0bf5c JB |
293 | |
294 | if ((ptr = getenv ("HOME")) == NULL) | |
295 | { | |
1cac1f6f KH |
296 | if ((ptr = getenv ("LOGNAME")) != NULL |
297 | || (ptr = getenv ("USER")) != NULL) | |
f3a0bf5c JB |
298 | pw = getpwnam (ptr); |
299 | else | |
1cac1f6f | 300 | pw = getpwuid (getuid ()); |
837255fb | 301 | |
f3a0bf5c JB |
302 | if (pw) |
303 | ptr = pw->pw_dir; | |
f3a0bf5c JB |
304 | } |
305 | ||
837255fb JB |
306 | if (ptr == NULL) |
307 | return "/"; | |
f3a0bf5c | 308 | |
837255fb JB |
309 | copy = (char *) malloc (strlen (ptr) + 2); |
310 | strcpy (copy, ptr); | |
311 | strcat (copy, "/"); | |
f3a0bf5c | 312 | |
837255fb | 313 | return copy; |
f3a0bf5c JB |
314 | } |
315 | ||
837255fb | 316 | |
f3a0bf5c JB |
317 | static int |
318 | file_p (path) | |
319 | char *path; | |
320 | { | |
321 | struct stat status; | |
322 | ||
dfc35f5f | 323 | return (access (path, 4) == 0 /* exists and is readable */ |
f3a0bf5c | 324 | && stat (path, &status) == 0 /* get the status */ |
0f2cd61f | 325 | && (S_ISDIR (status.st_mode)) == 0); /* not a directory */ |
f3a0bf5c JB |
326 | } |
327 | ||
f3a0bf5c | 328 | |
837255fb JB |
329 | /* Find the first element of SEARCH_PATH which exists and is readable, |
330 | after expanding the %-escapes. Return 0 if we didn't find any, and | |
331 | the path name of the one we found otherwise. */ | |
f3a0bf5c | 332 | |
837255fb JB |
333 | static char * |
334 | search_magic_path (search_path, class, escaped_suffix, suffix) | |
335 | char *search_path, *class, *escaped_suffix, *suffix; | |
f3a0bf5c | 336 | { |
837255fb | 337 | register char *s, *p; |
d4327fec | 338 | |
837255fb | 339 | for (s = search_path; *s; s = p) |
f3a0bf5c | 340 | { |
837255fb JB |
341 | for (p = s; *p && *p != ':'; p++) |
342 | ; | |
343 | ||
0f2cd61f | 344 | if (p > s) |
f3a0bf5c | 345 | { |
0f2cd61f | 346 | char *path = magic_file_p (s, p - s, class, escaped_suffix, suffix); |
837255fb JB |
347 | if (path) |
348 | return path; | |
f3a0bf5c | 349 | } |
0f2cd61f | 350 | else if (*p == ':') |
f3a0bf5c | 351 | { |
0f2cd61f RS |
352 | char *path; |
353 | ||
354 | s = "%N%S"; | |
355 | path = magic_file_p (s, strlen (s), class, escaped_suffix, suffix); | |
837255fb JB |
356 | if (path) |
357 | return path; | |
f3a0bf5c JB |
358 | } |
359 | ||
837255fb JB |
360 | if (*p == ':') |
361 | p++; | |
f3a0bf5c JB |
362 | } |
363 | ||
364 | return 0; | |
365 | } | |
366 | \f | |
837255fb JB |
367 | /* Producing databases for individual sources. */ |
368 | ||
f3a0bf5c JB |
369 | static XrmDatabase |
370 | get_system_app (class) | |
371 | char *class; | |
372 | { | |
837255fb JB |
373 | XrmDatabase db = NULL; |
374 | char *path; | |
f3a0bf5c | 375 | |
837255fb | 376 | path = getenv ("XFILESEARCHPATH"); |
58c7da0c | 377 | if (! path) path = PATH_X_DEFAULTS; |
f3a0bf5c | 378 | |
837255fb JB |
379 | path = search_magic_path (path, class, 0, 0); |
380 | if (path) | |
381 | { | |
382 | db = XrmGetFileDatabase (path); | |
383 | free (path); | |
384 | } | |
f3a0bf5c | 385 | |
f3a0bf5c JB |
386 | return db; |
387 | } | |
388 | ||
837255fb | 389 | |
f3a0bf5c JB |
390 | static XrmDatabase |
391 | get_fallback (display) | |
392 | Display *display; | |
393 | { | |
394 | XrmDatabase db; | |
395 | ||
396 | return NULL; | |
397 | } | |
398 | ||
837255fb | 399 | |
f3a0bf5c JB |
400 | static XrmDatabase |
401 | get_user_app (class) | |
402 | char *class; | |
403 | { | |
837255fb JB |
404 | char *path; |
405 | char *file = 0; | |
3fa18fb2 | 406 | char *free_it = 0; |
837255fb JB |
407 | |
408 | /* Check for XUSERFILESEARCHPATH. It is a path of complete file | |
409 | names, not directories. */ | |
410 | if (((path = getenv ("XUSERFILESEARCHPATH")) | |
411 | && (file = search_magic_path (path, class, 0, 0))) | |
412 | ||
413 | /* Check for APPLRESDIR; it is a path of directories. In each, | |
414 | we have to search for LANG/CLASS and then CLASS. */ | |
415 | || ((path = getenv ("XAPPLRESDIR")) | |
416 | && ((file = search_magic_path (path, class, "/%L/%N", 0)) | |
417 | || (file = search_magic_path (path, class, "/%N", 0)))) | |
418 | ||
419 | /* Check in the home directory. This is a bit of a hack; let's | |
420 | hope one's home directory doesn't contain any %-escapes. */ | |
3fa18fb2 RS |
421 | || (free_it = gethomedir (), |
422 | ((file = search_magic_path (free_it, class, "%L/%N", 0)) | |
423 | || (file = search_magic_path (free_it, class, "%N", 0))))) | |
f3a0bf5c | 424 | { |
837255fb JB |
425 | XrmDatabase db = XrmGetFileDatabase (file); |
426 | free (file); | |
3fa18fb2 RS |
427 | if (free_it) |
428 | free (free_it); | |
837255fb | 429 | return db; |
f3a0bf5c | 430 | } |
3fa18fb2 RS |
431 | |
432 | if (free_it) | |
433 | free (free_it); | |
434 | return NULL; | |
f3a0bf5c JB |
435 | } |
436 | ||
837255fb | 437 | |
f3a0bf5c JB |
438 | static XrmDatabase |
439 | get_user_db (display) | |
440 | Display *display; | |
441 | { | |
442 | XrmDatabase db; | |
443 | char *xdefs; | |
444 | ||
2c8d1900 | 445 | #ifdef PBaseSize /* Cheap way to test for X11R4 or later. */ |
b631f177 JB |
446 | xdefs = XResourceManagerString (display); |
447 | #else | |
a2a4d43e | 448 | xdefs = display->xdefaults; |
b631f177 JB |
449 | #endif |
450 | ||
f3a0bf5c JB |
451 | if (xdefs != NULL) |
452 | db = XrmGetStringDatabase (xdefs); | |
453 | else | |
454 | { | |
837255fb JB |
455 | char *home; |
456 | char *xdefault; | |
f3a0bf5c | 457 | |
837255fb JB |
458 | home = gethomedir (); |
459 | xdefault = (char *) malloc (strlen (home) + sizeof (".Xdefaults")); | |
460 | strcpy (xdefault, home); | |
f3a0bf5c JB |
461 | strcat (xdefault, ".Xdefaults"); |
462 | db = XrmGetFileDatabase (xdefault); | |
837255fb JB |
463 | free (home); |
464 | free (xdefault); | |
f3a0bf5c JB |
465 | } |
466 | ||
d8717d15 | 467 | #ifdef HAVE_XSCREENRESOURCESTRING |
9b37b1c2 JB |
468 | /* Get the screen-specific resources too. */ |
469 | xdefs = XScreenResourceString (DefaultScreenOfDisplay (display)); | |
470 | if (xdefs != NULL) | |
fdce0b39 JB |
471 | { |
472 | XrmMergeDatabases (XrmGetStringDatabase (xdefs), &db); | |
473 | XFree (xdefs); | |
474 | } | |
9b37b1c2 JB |
475 | #endif |
476 | ||
f3a0bf5c JB |
477 | return db; |
478 | } | |
479 | ||
480 | static XrmDatabase | |
481 | get_environ_db () | |
482 | { | |
483 | XrmDatabase db; | |
484 | char *p; | |
e29ad342 | 485 | char *path = 0, *home = 0, *host; |
f3a0bf5c JB |
486 | |
487 | if ((p = getenv ("XENVIRONMENT")) == NULL) | |
488 | { | |
837255fb | 489 | home = gethomedir (); |
e29ad342 | 490 | host = get_system_name (); |
837255fb JB |
491 | path = (char *) malloc (strlen (home) |
492 | + sizeof (".Xdefaults-") | |
493 | + strlen (host)); | |
494 | sprintf (path, "%s%s%s", home, ".Xdefaults-", host); | |
f3a0bf5c JB |
495 | p = path; |
496 | } | |
497 | ||
498 | db = XrmGetFileDatabase (p); | |
837255fb JB |
499 | |
500 | if (path) free (path); | |
501 | if (home) free (home); | |
837255fb | 502 | |
f3a0bf5c JB |
503 | return db; |
504 | } | |
505 | \f | |
837255fb JB |
506 | /* External interface. */ |
507 | ||
f3a0bf5c JB |
508 | /* Types of values that we can find in a database */ |
509 | ||
510 | #define XrmStringType "String" /* String representation */ | |
511 | XrmRepresentation x_rm_string; /* Quark representation */ | |
512 | ||
513 | /* Load X resources based on the display and a possible -xrm option. */ | |
514 | ||
515 | XrmDatabase | |
837255fb | 516 | x_load_resources (display, xrm_string, myname, myclass) |
f3a0bf5c | 517 | Display *display; |
837255fb | 518 | char *xrm_string, *myname, *myclass; |
f3a0bf5c JB |
519 | { |
520 | char *xdefs; | |
837255fb | 521 | XrmDatabase user_database; |
f3a0bf5c JB |
522 | XrmDatabase rdb; |
523 | XrmDatabase db; | |
524 | ||
525 | x_rm_string = XrmStringToQuark (XrmStringType); | |
082dc211 RS |
526 | #ifndef USE_X_TOOLKIT |
527 | /* pmr@osf.org says this shouldn't be done if USE_X_TOOLKIT. | |
528 | I suspect it's because the toolkit version does this elsewhere. */ | |
f3a0bf5c | 529 | XrmInitialize (); |
082dc211 | 530 | #endif |
f3a0bf5c JB |
531 | rdb = XrmGetStringDatabase (""); |
532 | ||
837255fb JB |
533 | user_database = get_user_db (display); |
534 | ||
535 | /* Figure out what the "customization string" is, so we can use it | |
536 | to decode paths. */ | |
537 | if (x_customization_string) | |
538 | free (x_customization_string); | |
539 | x_customization_string | |
540 | = x_get_customization_string (user_database, myname, myclass); | |
541 | ||
f3a0bf5c JB |
542 | /* Get application system defaults */ |
543 | db = get_system_app (myclass); | |
544 | if (db != NULL) | |
545 | XrmMergeDatabases (db, &rdb); | |
546 | ||
547 | /* Get Fallback resources */ | |
548 | db = get_fallback (display); | |
549 | if (db != NULL) | |
550 | XrmMergeDatabases (db, &rdb); | |
551 | ||
552 | /* Get application user defaults */ | |
553 | db = get_user_app (myclass); | |
554 | if (db != NULL) | |
555 | XrmMergeDatabases (db, &rdb); | |
556 | ||
557 | /* get User defaults */ | |
837255fb JB |
558 | if (user_database != NULL) |
559 | XrmMergeDatabases (user_database, &rdb); | |
f3a0bf5c JB |
560 | |
561 | /* Get Environment defaults. */ | |
562 | db = get_environ_db (); | |
563 | if (db != NULL) | |
564 | XrmMergeDatabases (db, &rdb); | |
565 | ||
566 | /* Last, merge in any specification from the command line. */ | |
567 | if (xrm_string != NULL) | |
568 | { | |
569 | db = XrmGetStringDatabase (xrm_string); | |
570 | if (db != NULL) | |
571 | XrmMergeDatabases (db, &rdb); | |
572 | } | |
573 | ||
574 | return rdb; | |
575 | } | |
576 | ||
837255fb | 577 | |
f3a0bf5c JB |
578 | /* Retrieve the value of the resource specified by NAME with class CLASS |
579 | and of type TYPE from database RDB. The value is returned in RET_VALUE. */ | |
580 | ||
581 | int | |
582 | x_get_resource (rdb, name, class, expected_type, ret_value) | |
583 | XrmDatabase rdb; | |
584 | char *name, *class; | |
585 | XrmRepresentation expected_type; | |
586 | XrmValue *ret_value; | |
587 | { | |
588 | XrmValue value; | |
589 | XrmName namelist[100]; | |
590 | XrmClass classlist[100]; | |
591 | XrmRepresentation type; | |
592 | ||
593 | XrmStringToNameList(name, namelist); | |
594 | XrmStringToClassList(class, classlist); | |
595 | ||
596 | if (XrmQGetResource (rdb, namelist, classlist, &type, &value) == True | |
597 | && (type == expected_type)) | |
598 | { | |
599 | if (type == x_rm_string) | |
41ab0754 | 600 | ret_value->addr = (char *) value.addr; |
f3a0bf5c JB |
601 | else |
602 | bcopy (value.addr, ret_value->addr, ret_value->size); | |
603 | ||
604 | return value.size; | |
605 | } | |
606 | ||
607 | return 0; | |
608 | } | |
609 | ||
610 | /* Retrieve the string resource specified by NAME with CLASS from | |
611 | database RDB. */ | |
612 | ||
613 | char * | |
614 | x_get_string_resource (rdb, name, class) | |
615 | XrmDatabase rdb; | |
616 | char *name, *class; | |
617 | { | |
618 | XrmValue value; | |
619 | ||
620 | if (x_get_resource (rdb, name, class, x_rm_string, &value)) | |
621 | return (char *) value.addr; | |
622 | ||
623 | return (char *) 0; | |
624 | } | |
625 | \f | |
837255fb JB |
626 | /* Stand-alone test facilities. */ |
627 | ||
f3a0bf5c | 628 | #ifdef TESTRM |
837255fb JB |
629 | |
630 | typedef char **List; | |
631 | #define arg_listify(len, list) (list) | |
632 | #define car(list) (*(list)) | |
633 | #define cdr(list) (list + 1) | |
634 | #define NIL(list) (! *(list)) | |
635 | #define free_arglist(list) | |
636 | ||
637 | static List | |
638 | member (elt, list) | |
639 | char *elt; | |
640 | List list; | |
641 | { | |
642 | List p; | |
643 | ||
644 | for (p = list; ! NIL (p); p = cdr (p)) | |
645 | if (! strcmp (elt, car (p))) | |
646 | return p; | |
647 | ||
648 | return p; | |
649 | } | |
f3a0bf5c JB |
650 | |
651 | static void | |
652 | fatal (msg, prog, x1, x2, x3, x4, x5) | |
653 | char *msg, *prog; | |
654 | int x1, x2, x3, x4, x5; | |
655 | { | |
656 | extern int errno; | |
657 | ||
658 | if (errno) | |
659 | perror (prog); | |
660 | ||
661 | (void) fprintf (stderr, msg, prog, x1, x2, x3, x4, x5); | |
662 | exit (1); | |
663 | } | |
664 | ||
665 | main (argc, argv) | |
666 | int argc; | |
667 | char **argv; | |
668 | { | |
669 | Display *display; | |
837255fb | 670 | char *displayname, *resource_string, *class, *name; |
f3a0bf5c | 671 | XrmDatabase xdb; |
837255fb | 672 | List arg_list, lp; |
f3a0bf5c JB |
673 | |
674 | arg_list = arg_listify (argc, argv); | |
675 | ||
676 | lp = member ("-d", arg_list); | |
677 | if (!NIL (lp)) | |
678 | displayname = car (cdr (lp)); | |
679 | else | |
680 | displayname = "localhost:0.0"; | |
681 | ||
682 | lp = member ("-xrm", arg_list); | |
683 | if (! NIL (lp)) | |
684 | resource_string = car (cdr (lp)); | |
685 | else | |
686 | resource_string = (char *) 0; | |
687 | ||
688 | lp = member ("-c", arg_list); | |
689 | if (! NIL (lp)) | |
690 | class = car (cdr (lp)); | |
691 | else | |
692 | class = "Emacs"; | |
693 | ||
837255fb JB |
694 | lp = member ("-n", arg_list); |
695 | if (! NIL (lp)) | |
696 | name = car (cdr (lp)); | |
697 | else | |
698 | name = "emacs"; | |
f3a0bf5c | 699 | |
837255fb | 700 | free_arglist (arg_list); |
f3a0bf5c JB |
701 | |
702 | if (!(display = XOpenDisplay (displayname))) | |
703 | fatal ("Can't open display '%s'\n", XDisplayName (displayname)); | |
704 | ||
837255fb | 705 | xdb = x_load_resources (display, resource_string, name, class); |
f3a0bf5c | 706 | |
f3a0bf5c JB |
707 | /* In a real program, you'd want to also do this: */ |
708 | display->db = xdb; | |
f3a0bf5c JB |
709 | |
710 | while (1) | |
711 | { | |
837255fb JB |
712 | char query_name[90]; |
713 | char query_class[90]; | |
714 | ||
715 | printf ("Name: "); | |
716 | gets (query_name); | |
f3a0bf5c | 717 | |
837255fb | 718 | if (strlen (query_name)) |
f3a0bf5c | 719 | { |
837255fb JB |
720 | char *value; |
721 | ||
722 | printf ("Class: "); | |
723 | gets (query_class); | |
724 | ||
725 | value = x_get_string_resource (xdb, query_name, query_class); | |
f3a0bf5c JB |
726 | |
727 | if (value != NULL) | |
837255fb | 728 | printf ("\t%s(%s): %s\n\n", query_name, query_class, value); |
f3a0bf5c JB |
729 | else |
730 | printf ("\tNo Value.\n\n"); | |
731 | } | |
732 | else | |
733 | break; | |
734 | } | |
735 | printf ("\tExit.\n\n"); | |
736 | ||
737 | XCloseDisplay (display); | |
738 | } | |
739 | #endif /* TESTRM */ |