First part of interactive checks that coding systems encode regions. 2008-01-21 Aidan Kehoe <kehoea@parhasard.net> * coding.el (decode-coding-string): (encode-coding-string): Accept GNU's NOCOPY argument for these. Todo; write compiler macros to use it. (query-coding-warning-face): New face, to show unencodable characters. (default-query-coding-region-safe-charset-skip-chars-map): New variable, a cache used by #'default-query-coding-region. (default-query-coding-region): Default implementation of #'query-coding-region, using the safe-charsets and safe-chars coding systemproperties. (query-coding-region): New function; can a given coding system encode a given region? (query-coding-string): New function; can a given coding system encode a given string? (unencodable-char-position): Function API taken from GNU; return the first unencodable position given a string and coding system. (encode-coding-char): Function API taken from GNU; return CHAR encoded using CODING-SYSTEM, or nil if CODING-SYSTEM would trash CHAR. ((unless (featurep 'mule)): Override the default query-coding-region implementation on non-Mule. * mule/mule-coding.el (make-8-bit-generate-helper): Eliminate a duplicate comment. (make-8-bit-choose-category): Simplify implementation. (8-bit-fixed-query-coding-region): Implementation of #'query-coding-region for coding systems created with #'make-8-bit-coding-system. (make-8-bit-coding-system): Initialise the #'query-coding-region implementation for these character sets. (make-8-bit-coding-system): Ditto for the compiler macro version of this function. * unicode.el (unicode-query-coding-skip-chars-arg): New variable, used by unicode-query-coding-region, initialised in mule/general-late.el. (unicode-query-coding-region): New function, the #'query-coding-region implementation for Unicode coding systems. Initialise the query-coding-function property for the Unicode coding systems to #'unicode-query-coding-region. * mule/mule-charset.el (charset-skip-chars-string): New function. Return a #'skip-chars-forward argument that skips all characters in CHARSET. (map-charset-chars): Function synced from GNU, modified to work with XEmacs. Map FUNC across the int value charset ranges of CHARSET.

/* Debugging aids -- togglable assertions.
   Copyright (C) 1994 Free Software Foundation, Inc.

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 Chuck Thompson */

#ifndef INCLUDED_debug_h_
#define INCLUDED_debug_h_

#define DEBUG_STDERR	1
#define DEBUG_ABORT	2

#ifdef DEBUG_XEMACS

struct debug_classes
{
  unsigned int redisplay :1;
  unsigned int buffers :1;
  unsigned int extents :1;
  unsigned int faces :1;
  unsigned int windows :1;
  unsigned int frames :1;
  unsigned int devices :1;
  unsigned int byte_code :1;

  unsigned int types_of_redisplay;
  unsigned int types_of_buffers;
  unsigned int types_of_extents;
  unsigned int types_of_faces;
  unsigned int types_of_windows;
  unsigned int types_of_frames;
  unsigned int types_of_devices;
  unsigned int types_of_byte_code;
};

extern struct debug_classes active_debug_classes;

#define DASSERT(class_, desired_type, action, assertion) do		\
{									\
  if (active_debug_classes.##class_					\
      && (active_debug_classes.types_of_##class_ & desired_type))	\
    {									\
      if (! (assertion))						\
	{								\
	  if (action == DEBUG_STDERR)					\
	    stderr_out ("Assertion failed in %s at line %d\n",		\
			__FILE__, __LINE__);		       		\
	  else								\
	    ABORT ();							\
	}								\
    }									\
} while (0)
#else /* !DEBUG_XEMACS */

#define DASSERT(class_, desired_type, action, assertion)	((void) 0)

#endif /* !DEBUG_XEMACS */

#endif /* INCLUDED_debug_h_ */