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Handle varalias chains, custom variables in #'user-variable-p. src/ChangeLog addition: 2008-08-23 Aidan Kehoe <kehoea@parhasard.net> * eval.c (Fuser_variable_p): Moved to symbols.c * symbols.c (Fcustom_variable_p): Moved here from custom.el. (user_variable_alias_check_fun): Mapper function used in `user-variable-p'. (Fuser_variable_p): Moved here from eval.c, to allow it to examine the variable alias chain. Expanded to check each entry in the variable alias chain for signs of being a user variable; documentation updated, noting the differences between GNU's behaviour and ours (ours is a little more sensible) (map_varalias_chain): New. Given a C function, call it at least once for each symbol in a symbol's varalias chain, signalling an error if there's a cycle, and returning immediately if the function returns something other than Qzero. (Fdefvaralias): Correct the use of the word "alias" in the docstring and in the argument name. Motivate this in a comment. Add support for a DOCSTRING argument, something GNU has too, and document this * gc.c (vars_of_gc): Start the docstring of `garbage-collection-messages' with an asterisk, to indicate that it's a user variable. lisp/ChangeLog addition: 2008-08-23 Aidan Kehoe <kehoea@parhasard.net> * custom.el: Move #'custom-variable-p to C, since it's now called from #'user-variable-p.
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 23 Aug 2008 16:38:51 +0200
parents 141c2920ea48
children 308d34e9f07d
line wrap: on
line source

/* Define stream specific console, device, and frame object for XEmacs.
   Copyright (C) 1995 Board of Trustees, University of Illinois.
   Copyright (C) 1995 Free Software Foundation, Inc.
   Copyright (C) 2002 Ben Wing.

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, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: Not in FSF. */

/* Written by Ben Wing. */

#ifndef INCLUDED_console_stream_h_
#define INCLUDED_console_stream_h_

#include "console.h"

#ifndef NEW_GC
extern const struct sized_memory_description stream_console_data_description;
#endif /* not NEW_GC */

extern Lisp_Object Vterminal_console, Vterminal_frame, Vterminal_device;

Lisp_Object stream_semi_canonicalize_console_connection (Lisp_Object,
							 Error_Behavior);
Lisp_Object stream_canonicalize_console_connection (Lisp_Object,
						    Error_Behavior);
Lisp_Object stream_semi_canonicalize_device_connection (Lisp_Object,
							Error_Behavior);
Lisp_Object stream_canonicalize_device_connection (Lisp_Object,
						   Error_Behavior);
#endif /* INCLUDED_console_stream_h_ */