view lisp/x-misc.el @ 5015:d95c102a96d3

cleanups for specifier font stages, from ben-unicode-internal (preparation for eliminating shadowed warnings) -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-02-08 Ben Wing <ben@xemacs.org> * faces.c: * faces.c (face_property_matching_instance): * faces.c (ensure_face_cachel_contains_charset): * faces.h (FACE_FONT): * lisp.h: * lisp.h (enum font_specifier_matchspec_stages): * objects-msw.c: * objects-msw.c (mswindows_font_spec_matches_charset): * objects-msw.c (mswindows_find_charset_font): * objects-tty.c: * objects-tty.c (tty_font_spec_matches_charset): * objects-tty.c (tty_find_charset_font): * objects-xlike-inc.c: * objects-xlike-inc.c (XFUN): * objects-xlike-inc.c (xft_find_charset_font): * objects.c: * objects.c (font_instantiate): * objects.c (FROB): * specifier.c: * specifier.c (charset_matches_specifier_tag_set_p): * specifier.c (call_charset_predicate): * specifier.c (define_specifier_tag): * specifier.c (Fdefine_specifier_tag): * specifier.c (setup_charset_initial_specifier_tags): * specifier.c (specifier_instance_from_inst_list): * specifier.c (FROB): * specifier.c (vars_of_specifier): * specifier.h: Rename the specifier-font-matching stages in preparation for eliminating shadowed warnings, some other related fixes from ben-unicode-internal. 1. Rename raw enums: initial -> STAGE_INITIAL final -> STAGE_FINAL impossible -> NUM_MATCHSPEC_STAGES 2. Move `enum font_specifier_matchspec_stages' from specifier.h to lisp.h. 3. Whitespace changes to match coding standards. 4. Eliminate unused second argument STAGE in charset predicates that don't use it -- the code that calls the charset predicates is now smart enough to supply the right number of arguments automatically. 5. Add some long(ish) comments and authorial notices, esp. in objects.c. 6. In specifier.c, change Vcharset_tag_lists from a vector over leading bytes to a hash table over charsets. This change is unnecessary currently but doesn't hurt and will be required when we merge in Unicode-internal. 7. In specifier.c, extract out the code that calls charset predicates into a function call_charset_predicate().
author Ben Wing <ben@xemacs.org>
date Mon, 08 Feb 2010 16:51:25 -0600
parents e29fcfd8df5f
children d0bb90d90736 308d34e9f07d
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;;; x-misc.el --- miscellaneous X functions.

;; Copyright (C) 1997 Free Software Foundation, Inc.
;; Copyright (C) 1995 Sun Microsystems.
;; Copyright (C) 1995, 1996 Ben Wing.

;; Author: Ben Wing <ben@xemacs.org>
;; Maintainer: XEmacs Development Team
;; Keywords: extensions, dumped

;; This file is part of XEmacs.

;; XEmacs is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; XEmacs is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;; General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with XEmacs; see the file COPYING.  If not, write to the 
;; Free Software Foundation, 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Commentary:

;; This file is dumped with XEmacs (when X support is compiled in).

;;; Code:

(globally-declare-fboundp
 '(x-get-resource))

(defun x-bogosity-check-resource (name class type)
  "Check for a bogus resource specification."
  (let ((bogus (x-get-resource
		(concat "__no-such-friggin-locale__." name)
		(concat "__No-such-friggin-widget__." class)
		type 'global nil t)))
    (if bogus
	(display-warning
	 'resource
	 (format "Bad resource specification encountered: something like
     Emacs*%s: %s
You should replace the * with a . in order to get proper behavior when
you use the specifier and/or `set-face-*' functions." name bogus)))))

(defun x-init-specifier-from-resources (specifier type locale
						  &rest resource-list)
  "Initialize a specifier from the resource database.
LOCALE specifies the locale that is to be initialized and should be
a frame, a device, or 'global.  TYPE is the type of the resource and
should be one of 'string, 'boolean, 'integer, or 'natnum.  The
remaining args should be conses of names and classes of resources
to be examined.  The first resource with a value specified becomes
the spec for SPECIFIER in LOCALE. (However, if SPECIFIER already
has a spec in LOCALE, nothing is done.) Finally, if LOCALE is 'global,
a check is done for bogus resource specifications."
  (if (eq locale 'global)
      (mapc #'(lambda (x)
                (x-bogosity-check-resource (car x) (cdr x) type))
            resource-list))
  (if (not (specifier-spec-list specifier locale))
      (catch 'done
	(while resource-list
	  (let* ((name (caar resource-list))
		 (class (cdar resource-list))
		 (resource
		  (x-get-resource name class type locale nil 'warn)))
	    (if resource
		(progn
		  (add-spec-to-specifier specifier resource locale)
		  (throw 'done t))))
	  (setq resource-list (cdr resource-list))))))

(defun x-get-resource-and-bogosity-check (name class type &optional locale)
  (x-bogosity-check-resource name class type)
  (x-get-resource name class type locale nil 'warn))

(defun x-get-resource-and-maybe-bogosity-check (name class type &optional
						     locale)
  (if (eq locale 'global)
      (x-bogosity-check-resource name class type))
  (x-get-resource name class type locale nil 'warn))

;;; x-misc.el ends here