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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 e0db3c197671
line wrap: on
line source

/* TTY-specific Lisp objects.
   Copyright (C) 1995 Board of Trustees, University of Illinois.
   Copyright (C) 1995 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. */

#ifndef INCLUDED_objects_tty_impl_h_
#define INCLUDED_objects_tty_impl_h_

#include "objects-impl.h"
#include "objects-tty.h"

struct tty_color_instance_data
{
#ifdef NEW_GC
  struct lrecord_header header;
#endif /* NEW_GC */
  Lisp_Object symbol; /* so we don't have to constantly call Fintern() */
};

#ifdef NEW_GC
DECLARE_LRECORD (tty_color_instance_data, struct tty_color_instance_data);
#define XTTY_COLOR_INSTANCE_DATA(x) \
  XRECORD (x, tty_color_instance_data, struct tty_color_instance_data)
#define wrap_tty_color_instance_data(p) \
  wrap_record (p, tty_color_instance_data)
#define TTY_COLOR_INSTANCE_DATAP(x) RECORDP (x, tty_color_instance_data)
#define CHECK_TTY_COLOR_INSTANCE_DATA(x) \
  CHECK_RECORD (x, tty_color_instance_data)
#define CONCHECK_TTY_COLOR_INSTANCE_DATA(x) \
  CONCHECK_RECORD (x, tty_color_instance_data)
#endif /* NEW_GC */

#define TTY_COLOR_INSTANCE_DATA(c) 				\
  ((struct tty_color_instance_data *) (c)->data)

#define COLOR_INSTANCE_TTY_SYMBOL(c) (TTY_COLOR_INSTANCE_DATA (c)->symbol)

struct tty_font_instance_data
{
#ifdef NEW_GC
  struct lrecord_header header;
#endif /* NEW_GC */
  Lisp_Object charset;
};

#ifdef NEW_GC
DECLARE_LRECORD (tty_font_instance_data, struct tty_font_instance_data);
#define XTTY_FONT_INSTANCE_DATA(x) \
  XRECORD (x, tty_font_instance_data, struct tty_font_instance_data)
#define wrap_tty_font_instance_data(p) \
  wrap_record (p, tty_font_instance_data)
#define TTY_FONT_INSTANCE_DATAP(x) RECORDP (x, tty_font_instance_data)
#define CHECK_TTY_FONT_INSTANCE_DATA(x) \
  CHECK_RECORD (x, tty_font_instance_data)
#define CONCHECK_TTY_FONT_INSTANCE_DATA(x) \
  CONCHECK_RECORD (x, tty_font_instance_data)
#endif /* NEW_GC */

#define TTY_FONT_INSTANCE_DATA(c) 				\
  ((struct tty_font_instance_data *) (c)->data)

#define FONT_INSTANCE_TTY_CHARSET(c) (TTY_FONT_INSTANCE_DATA (c)->charset)

#endif /* INCLUDED_objects_tty_impl_h_ */