1 /* Deal with the X Resource Manager.
2 Copyright (C) 1990, 1993, 1994, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
5 Author: Joseph Arceneaux
8 This file is part of GNU Emacs.
10 GNU Emacs is free software: you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation, either version 3 of the License, or
13 (at your option) any later version.
15 GNU Emacs is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
35 #if 1 /* I'd really appreciate it if this code could go away... -JimB */
36 /* This avoids lossage in the `dual-universe' headers on AT&T SysV
37 X11. Don't do it on Solaris, because it breaks compilation with
38 XFree86 4.0.3 (and probably many other X11R6 releases) on Solaris
40 #if defined(USG5) && !defined(SOLARIS2)
44 #endif /* USG5 && !SOLARIS2 */
49 #include <X11/Xatom.h>
54 #include <X11/Xutil.h>
55 #include <X11/Xresource.h>
61 #if !defined(S_ISDIR) && defined(S_IFDIR)
62 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
67 extern char *getenv ();
69 /* This does cause trouble on AIX. I'm going to take the comment at
72 extern short getuid (); /* If this causes portability problems,
73 I think we should just delete it; it'll
74 default to `int' anyway. */
77 #ifdef DECLARE_GETPWUID_WITH_UID_T
78 extern struct passwd
*getpwuid (uid_t
);
79 extern struct passwd
*getpwnam (const char *);
81 extern struct passwd
*getpwuid ();
82 extern struct passwd
*getpwnam ();
85 extern char *get_system_name ();
87 /* Make sure not to #include anything after these definitions. Let's
88 not step on anyone's prototypes. */
90 /* darwin.h may have already defined these. */
94 #define malloc xmalloc
95 #define realloc xrealloc
99 char *x_get_string_resource ();
100 static int file_p ();
103 /* X file search path processing. */
106 /* The string which gets substituted for the %C escape in XFILESEARCHPATH
107 and friends, or zero if none was specified. */
108 char *x_customization_string
;
111 /* Return the value of the emacs.customization (Emacs.Customization)
112 resource, for later use in search path decoding. If we find no
113 such resource, return zero. */
115 x_get_customization_string (db
, name
, class)
120 = (char *) alloca (strlen (name
) + sizeof ("customization") + 3);
122 = (char *) alloca (strlen (class) + sizeof ("Customization") + 3);
125 sprintf (full_name
, "%s.%s", name
, "customization");
126 sprintf (full_class
, "%s.%s", class, "Customization");
128 result
= x_get_string_resource (db
, full_name
, full_class
);
132 char *copy
= (char *) malloc (strlen (result
) + 1);
133 strcpy (copy
, result
);
141 /* Expand all the Xt-style %-escapes in STRING, whose length is given
142 by STRING_LEN. Here are the escapes we're supposed to recognize:
144 %N The value of the application's class name
145 %T The value of the type parameter ("app-defaults" in this
147 %S The value of the suffix parameter ("" in this context)
148 %L The language string associated with the specified display
149 (We use the "LANG" environment variable here, if it's set.)
150 %l The language part of the display's language string
151 (We treat this just like %L. If someone can tell us what
152 we're really supposed to do, dandy.)
153 %t The territory part of the display's language string
154 (This never gets used.)
155 %c The codeset part of the display's language string
156 (This never gets used either.)
157 %C The customization string retrieved from the resource
158 database associated with display.
159 (This is x_customization_string.)
161 Return the expanded file name if it exists and is readable, and
162 refers to %L only when the LANG environment variable is set, or
163 otherwise provided by X.
165 ESCAPED_SUFFIX and SUFFIX are postpended to STRING if they are
166 non-zero. %-escapes in ESCAPED_SUFFIX are expanded; STRING is left
169 Return NULL otherwise. */
172 magic_file_p (string
, string_len
, class, escaped_suffix
, suffix
)
175 char *class, *escaped_suffix
, *suffix
;
177 char *lang
= getenv ("LANG");
180 char *path
= (char *) malloc (path_size
);
185 while (p
< string
+ string_len
)
187 /* The chunk we're about to stick on the end of result. */
195 if (p
>= string
+ string_len
)
206 next
= (x_customization_string
207 ? x_customization_string
209 next_len
= strlen (next
);
214 next_len
= strlen (class);
218 next
= "app-defaults";
219 next_len
= strlen (next
);
236 next_len
= strlen (next
);
246 next
= p
, next_len
= 1;
248 /* Do we have room for this component followed by a '\0' ? */
249 if (path_len
+ next_len
+ 1 > path_size
)
251 path_size
= (path_len
+ next_len
+ 1) * 2;
252 path
= (char *) realloc (path
, path_size
);
255 bcopy (next
, path
+ path_len
, next_len
);
256 path_len
+= next_len
;
260 /* If we've reached the end of the string, append ESCAPED_SUFFIX. */
261 if (p
>= string
+ string_len
&& escaped_suffix
)
263 string
= escaped_suffix
;
264 string_len
= strlen (string
);
266 escaped_suffix
= NULL
;
270 /* Perhaps we should add the SUFFIX now. */
273 int suffix_len
= strlen (suffix
);
275 if (path_len
+ suffix_len
+ 1 > path_size
)
277 path_size
= (path_len
+ suffix_len
+ 1);
278 path
= (char *) realloc (path
, path_size
);
281 bcopy (suffix
, path
+ path_len
, suffix_len
);
282 path_len
+= suffix_len
;
285 path
[path_len
] = '\0';
304 if ((ptr
= getenv ("HOME")) == NULL
)
306 if ((ptr
= getenv ("LOGNAME")) != NULL
307 || (ptr
= getenv ("USER")) != NULL
)
310 pw
= getpwuid (getuid ());
317 return xstrdup ("/");
319 copy
= (char *) malloc (strlen (ptr
) + 2);
333 return (access (filename
, 4) == 0 /* exists and is readable */
334 && stat (filename
, &status
) == 0 /* get the status */
335 && (S_ISDIR (status
.st_mode
)) == 0); /* not a directory */
339 /* Find the first element of SEARCH_PATH which exists and is readable,
340 after expanding the %-escapes. Return 0 if we didn't find any, and
341 the path name of the one we found otherwise. */
344 search_magic_path (search_path
, class, escaped_suffix
, suffix
)
345 char *search_path
, *class, *escaped_suffix
, *suffix
;
347 register char *s
, *p
;
349 for (s
= search_path
; *s
; s
= p
)
351 for (p
= s
; *p
&& *p
!= ':'; p
++)
356 char *path
= magic_file_p (s
, p
- s
, class, escaped_suffix
, suffix
);
365 path
= magic_file_p (s
, strlen (s
), class, escaped_suffix
, suffix
);
377 /* Producing databases for individual sources. */
380 get_system_app (class)
383 XrmDatabase db
= NULL
;
386 path
= getenv ("XFILESEARCHPATH");
387 if (! path
) path
= PATH_X_DEFAULTS
;
389 path
= search_magic_path (path
, class, 0, 0);
392 db
= XrmGetFileDatabase (path
);
401 get_fallback (display
)
416 /* Check for XUSERFILESEARCHPATH. It is a path of complete file
417 names, not directories. */
418 if (((path
= getenv ("XUSERFILESEARCHPATH"))
419 && (file
= search_magic_path (path
, class, 0, 0)))
421 /* Check for APPLRESDIR; it is a path of directories. In each,
422 we have to search for LANG/CLASS and then CLASS. */
423 || ((path
= getenv ("XAPPLRESDIR"))
424 && ((file
= search_magic_path (path
, class, "/%L/%N", 0))
425 || (file
= search_magic_path (path
, class, "/%N", 0))))
427 /* Check in the home directory. This is a bit of a hack; let's
428 hope one's home directory doesn't contain any %-escapes. */
429 || (free_it
= gethomedir (),
430 ((file
= search_magic_path (free_it
, class, "%L/%N", 0))
431 || (file
= search_magic_path (free_it
, class, "%N", 0)))))
433 XrmDatabase db
= XrmGetFileDatabase (file
);
445 get_user_db (display
)
451 #ifdef PBaseSize /* Cheap way to test for X11R4 or later. */
452 xdefs
= XResourceManagerString (display
);
454 xdefs
= display
->xdefaults
;
458 db
= XrmGetStringDatabase (xdefs
);
464 home
= gethomedir ();
465 xdefault
= (char *) malloc (strlen (home
) + sizeof (".Xdefaults"));
466 strcpy (xdefault
, home
);
467 strcat (xdefault
, ".Xdefaults");
468 db
= XrmGetFileDatabase (xdefault
);
473 #ifdef HAVE_XSCREENRESOURCESTRING
474 /* Get the screen-specific resources too. */
475 xdefs
= XScreenResourceString (DefaultScreenOfDisplay (display
));
478 XrmMergeDatabases (XrmGetStringDatabase (xdefs
), &db
);
491 char *path
= 0, *home
= 0, *host
;
493 if ((p
= getenv ("XENVIRONMENT")) == NULL
)
495 home
= gethomedir ();
496 host
= get_system_name ();
497 path
= (char *) malloc (strlen (home
)
498 + sizeof (".Xdefaults-")
500 sprintf (path
, "%s%s%s", home
, ".Xdefaults-", host
);
504 db
= XrmGetFileDatabase (p
);
512 /* External interface. */
514 /* Types of values that we can find in a database */
516 #define XrmStringType "String" /* String representation */
517 XrmRepresentation x_rm_string
; /* Quark representation */
519 /* Load X resources based on the display and a possible -xrm option. */
522 x_load_resources (display
, xrm_string
, myname
, myclass
)
524 char *xrm_string
, *myname
, *myclass
;
526 XrmDatabase user_database
;
531 char *helv
= "-*-helvetica-medium-r-*--*-120-*-*-*-*-iso8859-1";
534 char *courier
= "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1";
535 extern Lisp_Object Vdouble_click_time
;
538 x_rm_string
= XrmStringToQuark (XrmStringType
);
539 #ifndef USE_X_TOOLKIT
540 /* pmr@osf.org says this shouldn't be done if USE_X_TOOLKIT.
541 I suspect it's because the toolkit version does this elsewhere. */
544 rdb
= XrmGetStringDatabase ("");
546 /* Add some font defaults. If the font `helv' doesn't exist, widgets
547 will use some other default font. */
550 sprintf (line
, "%s.pane.background: grey75", myclass
);
551 XrmPutLineResource (&rdb
, line
);
552 sprintf (line
, "%s*fontList: %s", myclass
, helv
);
553 XrmPutLineResource (&rdb
, line
);
554 sprintf (line
, "%s*menu*background: grey75", myclass
);
555 XrmPutLineResource (&rdb
, line
);
556 sprintf (line
, "%s*menubar*background: grey75", myclass
);
557 XrmPutLineResource (&rdb
, line
);
558 sprintf (line
, "%s*verticalScrollBar.background: grey75", myclass
);
559 XrmPutLineResource (&rdb
, line
);
560 sprintf (line
, "%s*verticalScrollBar.troughColor: grey75", myclass
);
561 XrmPutLineResource (&rdb
, line
);
562 sprintf (line
, "%s.dialog*.background: grey75", myclass
);
563 XrmPutLineResource (&rdb
, line
);
564 sprintf (line
, "%s*fsb.Text.background: white", myclass
);
565 XrmPutLineResource (&rdb
, line
);
566 sprintf (line
, "%s*fsb.FilterText.background: white", myclass
);
567 XrmPutLineResource (&rdb
, line
);
568 sprintf (line
, "%s*fsb*DirList.background: white", myclass
);
569 XrmPutLineResource (&rdb
, line
);
570 sprintf (line
, "%s*fsb*ItemsList.background: white", myclass
);
571 XrmPutLineResource (&rdb
, line
);
572 sprintf (line
, "%s*fsb*background: grey75", myclass
);
573 XrmPutLineResource (&rdb
, line
);
574 sprintf (line
, "%s*fsb.Text.fontList: %s", myclass
, courier
);
575 XrmPutLineResource (&rdb
, line
);
576 sprintf (line
, "%s*fsb.FilterText.fontList: %s", myclass
, courier
);
577 XrmPutLineResource (&rdb
, line
);
578 sprintf (line
, "%s*fsb*ItemsList.fontList: %s", myclass
, courier
);
579 XrmPutLineResource (&rdb
, line
);
580 sprintf (line
, "%s*fsb*DirList.fontList: %s", myclass
, courier
);
581 XrmPutLineResource (&rdb
, line
);
583 /* Set double click time of list boxes in the file selection
584 dialog from `double-click-time'. */
585 if (INTEGERP (Vdouble_click_time
) && XINT (Vdouble_click_time
) > 0)
587 sprintf (line
, "%s*fsb*DirList.doubleClickInterval: %d",
588 myclass
, XFASTINT (Vdouble_click_time
));
589 XrmPutLineResource (&rdb
, line
);
590 sprintf (line
, "%s*fsb*ItemsList.doubleClickInterval: %d",
591 myclass
, XFASTINT (Vdouble_click_time
));
592 XrmPutLineResource (&rdb
, line
);
595 #else /* not USE_MOTIF */
597 sprintf (line
, "Emacs.dialog*.font: %s", helv
);
598 XrmPutLineResource (&rdb
, line
);
599 sprintf (line
, "Emacs.dialog*.background: grey75");
600 XrmPutLineResource (&rdb
, line
);
601 sprintf (line
, "*XlwMenu*font: %s", helv
);
602 XrmPutLineResource (&rdb
, line
);
603 sprintf (line
, "*XlwMenu*background: grey75");
604 XrmPutLineResource (&rdb
, line
);
605 sprintf (line
, "Emacs*verticalScrollBar.background: grey75");
606 XrmPutLineResource (&rdb
, line
);
608 #endif /* not USE_MOTIF */
610 user_database
= get_user_db (display
);
612 /* Figure out what the "customization string" is, so we can use it
614 free (x_customization_string
);
615 x_customization_string
616 = x_get_customization_string (user_database
, myname
, myclass
);
618 /* Get application system defaults */
619 db
= get_system_app (myclass
);
621 XrmMergeDatabases (db
, &rdb
);
623 /* Get Fallback resources */
624 db
= get_fallback (display
);
626 XrmMergeDatabases (db
, &rdb
);
628 /* Get application user defaults */
629 db
= get_user_app (myclass
);
631 XrmMergeDatabases (db
, &rdb
);
633 /* get User defaults */
634 if (user_database
!= NULL
)
635 XrmMergeDatabases (user_database
, &rdb
);
637 /* Get Environment defaults. */
638 db
= get_environ_db ();
640 XrmMergeDatabases (db
, &rdb
);
642 /* Last, merge in any specification from the command line. */
643 if (xrm_string
!= NULL
)
645 db
= XrmGetStringDatabase (xrm_string
);
647 XrmMergeDatabases (db
, &rdb
);
654 /* Retrieve the value of the resource specified by NAME with class CLASS
655 and of type TYPE from database RDB. The value is returned in RET_VALUE. */
658 x_get_resource (rdb
, name
, class, expected_type
, ret_value
)
661 XrmRepresentation expected_type
;
665 XrmName namelist
[100];
666 XrmClass classlist
[100];
667 XrmRepresentation type
;
669 XrmStringToNameList(name
, namelist
);
670 XrmStringToClassList(class, classlist
);
672 if (XrmQGetResource (rdb
, namelist
, classlist
, &type
, &value
) == True
673 && (type
== expected_type
))
675 if (type
== x_rm_string
)
676 ret_value
->addr
= (char *) value
.addr
;
678 bcopy (value
.addr
, ret_value
->addr
, ret_value
->size
);
686 /* Retrieve the string resource specified by NAME with CLASS from
690 x_get_string_resource (rdb
, name
, class)
696 if (inhibit_x_resources
)
697 /* --quick was passed, so this is a no-op. */
700 if (x_get_resource (rdb
, name
, class, x_rm_string
, &value
))
701 return (char *) value
.addr
;
706 /* Stand-alone test facilities. */
711 #define arg_listify(len, list) (list)
712 #define car(list) (*(list))
713 #define cdr(list) (list + 1)
714 #define NIL(list) (! *(list))
715 #define free_arglist(list)
724 for (p
= list
; ! NIL (p
); p
= cdr (p
))
725 if (! strcmp (elt
, car (p
)))
732 fatal (msg
, prog
, x1
, x2
, x3
, x4
, x5
)
734 int x1
, x2
, x3
, x4
, x5
;
741 (void) fprintf (stderr
, msg
, prog
, x1
, x2
, x3
, x4
, x5
);
750 char *displayname
, *resource_string
, *class, *name
;
754 arg_list
= arg_listify (argc
, argv
);
756 lp
= member ("-d", arg_list
);
758 displayname
= car (cdr (lp
));
760 displayname
= "localhost:0.0";
762 lp
= member ("-xrm", arg_list
);
764 resource_string
= car (cdr (lp
));
766 resource_string
= (char *) 0;
768 lp
= member ("-c", arg_list
);
770 class = car (cdr (lp
));
774 lp
= member ("-n", arg_list
);
776 name
= car (cdr (lp
));
780 free_arglist (arg_list
);
782 if (!(display
= XOpenDisplay (displayname
)))
783 fatal ("Can't open display '%s'\n", XDisplayName (displayname
));
785 xdb
= x_load_resources (display
, resource_string
, name
, class);
787 /* In a real program, you'd want to also do this: */
793 char query_class
[90];
798 if (strlen (query_name
))
805 value
= x_get_string_resource (xdb
, query_name
, query_class
);
808 printf ("\t%s(%s): %s\n\n", query_name
, query_class
, value
);
810 printf ("\tNo Value.\n\n");
815 printf ("\tExit.\n\n");
817 XCloseDisplay (display
);
821 /* arch-tag: 37e6fbab-ed05-4363-9e76-6c4109ed511f
822 (do not change this comment) */