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