view lisp/x-misc.el @ 5014:c2e0c3af5fe3

cleanups to debug-print, try harder to make it work during GC -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-02-08 Ben Wing <ben@xemacs.org> * emacs.c: * emacs.c (assert_failed): Fix comments about when inhibit_non_essential_printing_operations is set and how used. Increment/decrement in assert_failed rather than just setting/resetting to avoid hosing things in case we're called when the value is already non-zero. Similarly increment/ decrement in_assert_failed. * gc.c (gc_prepare): * gc.c (gc_finish): Increment/decrement inhibit_non_essential_printing_operations rather than setting/resetting. * print.c: * print.c (debug_out): * print.c (write_string_to_alternate_debugging_output): * print.c (restore_inhibit_non_essential_conversion_operations): * print.c (debug_print_exit): * print.c (debug_print_enter): * print.c (debug_prin1): * print.c (debug_p4): * print.c (ext_print_begin): * print.c (ext_print_end): * print.c (external_debug_print): * print.c (debug_p3): * print.c (debug_backtrace): * print.c (debug_short_backtrace): * print.c (vars_of_print): Lots of cleanup. Fix debug_out() so it binds inhibit_non_essential_printing_operations around it to ensure no conversion. Remove many other places that set the same var since the lower-level functions now all do it. A few other places, add inhibit_non_essential_printing_operations bindings.Extract the code out that sets up and resets lots of bindings in debug_prin1() so that debug_backtrace() can use it, and rewrite it to use the new STORE_VOID_IN_LISP() rather than having to have a single static opaque structure holding all the bindings (and not handling reentrancy). Fix raw `char' to be `CIbyte' in the declaration of `alternate_do_string'. * signal.c (check_what_happened): Fix bug: Don't try to check for QUIT when inhibit_non_essential_printing_operations or we may screw things up if QUIT happens during debug printing.
author Ben Wing <ben@xemacs.org>
date Mon, 08 Feb 2010 07:00:24 -0600
parents e29fcfd8df5f
children d0bb90d90736 308d34e9f07d
line wrap: on
line source

;;; 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