Support new IGNORE-INVALID-SEQUENCESP argument, #'query-coding-region. lisp/ChangeLog addition: 2009-02-07 Aidan Kehoe <kehoea@parhasard.net> * coding.el (query-coding-clear-highlights): Rename the BUFFER argument to BUFFER-OR-STRING, describe it as possibly being a string in its documentation. (default-query-coding-region): Add a new IGNORE-INVALID-SEQUENCESP argument, document that this function does not support it. Bind case-fold-search to nil, we don't want this to influence what the function thinks is encodable or not. (query-coding-region): Add a new IGNORE-INVALID-SEQUENCESP argument, document what it does; reflect this new argument in the associated compiler macro. (query-coding-string): Add a new IGNORE-INVALID-SEQUENCESP argument, document what it does. Support the HIGHLIGHT argument correctly. * unicode.el (unicode-query-coding-region): Add a new IGNORE-INVALID-SEQUENCESP argument, document what it does, implement this. Document a potential problem. Use #'query-coding-clear-highlights instead of reimplementing it ourselves. Remove some debugging messages. * mule/arabic.el (iso-8859-6): * mule/cyrillic.el (iso-8859-5): * mule/greek.el (iso-8859-7): * mule/hebrew.el (iso-8859-8): * mule/latin.el (iso-8859-2): * mule/latin.el (iso-8859-3): * mule/latin.el (iso-8859-4): * mule/latin.el (iso-8859-14): * mule/latin.el (iso-8859-15): * mule/latin.el (iso-8859-16): * mule/latin.el (iso-8859-9): * mule/latin.el (windows-1252): * mule/mule-coding.el (iso-8859-1): Avoid the assumption that characters not given an explicit mapping in these coding systems map to the ISO 8859-1 characters corresponding to the octets on disk; this makes it much more reasonable to implement the IGNORE-INVALID-SEQUENCESP argument to query-coding-region. * mule/mule-cmds.el (set-language-info): Correct the docstring. * mule/mule-cmds.el (finish-set-language-environment): Treat invalid Unicode sequences produced from invalid-sequence-coding-system and corresponding to control characters the same as control characters in redisplay. * mule/mule-cmds.el: Document that encode-coding-char is available in coding.el * mule/mule-coding.el (make-8-bit-generate-helper): Change to return the both the encode-program generated and the relevant non-ASCII charset; update the docstring to reflect this. * mule/mule-coding.el (make-8-bit-generate-encode-program-and-skip-chars-strings): Rename this function; have it return skip-chars-strings as well as the encode program. Have these skip-chars-strings use ranges for charsets, where possible. * mule/mule-coding.el (make-8-bit-create-decode-encode-tables): Revise this to allow people to specify explicitly characters that should be undefined (= corresponding to keys in unicode-error-default-translation-table), and treating unspecified octets above #x7f as undefined by default. * mule/mule-coding.el (8-bit-fixed-query-coding-region): Add a new IGNORE-INVALID-SEQUENCESP argument, implement support for it using the 8-bit-fixed-invalid-sequences-skip-chars coding system property; remove some debugging messages. * mule/mule-coding.el (make-8-bit-coding-system): This function is dumped, autoloading it makes no sense. Document what happens when characters above #x7f are not specified, implement this. * mule/vietnamese.el: Correct spelling. tests/ChangeLog addition: 2009-02-07 Aidan Kehoe <kehoea@parhasard.net> * automated/query-coding-tests.el: Add FAILING-CASE arguments to the Assert calls, making #'q-c-debug mostly unnecessary. Remove #'q-c-debug. Add new tests that use the IGNORE-INVALID-SEQUENCESP argument to #'query-coding-region; rework the existing ones to respect it.

/* Font handling code for X and Xft.

Copyright (C) 2003 Eric Knauel
Copyright (C) 2004 Free Software Foundation, Inc.

Author:		Stephen J. Turnbull <stephen@xemacs.org>
Created:	24 Jul 2004 by Stephen J. Turnbull

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 GNU Emacs. */

#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include "lwlib-fonts.h"

#if 0
/* these are all from ../src; if we need them move the code */
#include "lisp.h"
#include "device.h"
#include "device-impl.h"
#include "console-x-impl.h"
#ifdef HAVE_FONTCONFIG
#include "font-mgr.h"
#endif
#endif

/*
 * code for handling Xft
 */

#ifdef USE_XFT

/* helper function to correctly open Xft/core fonts by name
   #### Can't we use FcParseName here?
   #### Is this done so often that the logic needs to be hard-coded in C?

   Daniel Pittman sez: Older code tried to enforce that an XLFD font was
   not scaled, while this version just doesn't care.  I think that is a
   better behavior, since if someone really wants a scaled font we should
   oblige them.

   Stephen sez: This whole function was ill-conceived, and I'm not sure it
   succeeds at any of the things it attempts to do.  First, we should be
   using fontconfig directly.  I'm not sure what Xft (or fontconfig) will
   try to do if passed an XLFD.  As for scaled fonts, both options are
   equally bad.  The problem is that the X server will often scale bitmap
   fonts willy-nilly; it's worth trying to avoid that, but I can't say
   whether that's worth overriding somebody who knows what they're doing.
   In any case, I think we should find out what Xft (fontconfig?) is able
   and willing to do with XLFDs, and probably move the logic to LISP.
*/
XftFont *
xft_open_font_by_name (Display *dpy, char *name)
{
  XftFont *res = NULL;

  /* if (!NILP (Fxft_xlfd_font_name_p (make_string (name, strlen (name))))) */
  /* #### this is bogus but ... */
  int count = 0;
  char *pos = name;
  /* extra parens shut up gcc */
  while ((pos = index (pos, '-')))
    {
      count++;
      pos++;
    }

  /* #### hard-coding DefaultScreen is evil! */
  if (count == 14		/* fully-qualified XLFD */
      || (count < 14		/* heuristic for wildcarded XLFD */
	  && count >= 5
	  && index (name, '*')))
    res = XftFontOpenXlfd (dpy, DefaultScreen (dpy), name);
  else
    res = XftFontOpenName (dpy, DefaultScreen (dpy), name);

  /* Try for a generic monospace font
     #### Why?  Menus don't need to line up in columns! */
  if (!res) 
    res = XftFontOpenName (dpy, DefaultScreen (dpy), "monospace");
  /* Try for anything we can get */
  if (!res)
    res = XftFontOpenName (dpy, DefaultScreen (dpy), "");

  if (!res)
    {
      /* #### This is Just So Wrong ... ! */
      /* sorry folks ... */
      fprintf (stderr,
	       "Unable to find any usable XFT font, even the defaults!\n");
      abort ();
      return 0;
    }

  return res;
}

#endif /* USE_XFT */

/* End of lwlib-fonts.c */