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Always use boyer_moore in ASCII or Latin-1 buffers with ASCII search strings. 2007-12-26 Aidan Kehoe <kehoea@parhasard.net> * casetab.c: Extend and correct some case table documentation. * search.c (search_buffer): Correct a bug where only the first entry for a character in the case equivalence table was examined in determining if the Boyer-Moore search algorithm is appropriate. If there are case mappings outside of the charset and row of the characters specified in the search string, those case mappings can be safely ignored (and Boyer-Moore search can be used) if we know from the buffer statistics that the corresponding characters cannot occur. * search.c (boyer_moore): Assert that we haven't been passed a string with varying characters sets or rows within character sets. That's what simple_search is for. In the very rare event that a character in the search string has a canonical case mapping that is not in the same character set and row, don't try to search for the canonical character, search for some other character that is in the the desired character set and row. Assert that the case table isn't corrupt. Do not search for any character case mappings that cannot possibly occur in the buffer, given the buffer metadata about its contents.
author Aidan Kehoe <kehoea@parhasard.net>
date Wed, 26 Dec 2007 17:30:16 +0100
parents ad2f4ae9895b
children 87175eb65ff4
line wrap: on
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/* X-specific Lisp objects.
   Copyright (C) 1993, 1994 Free Software Foundation, Inc.
   Copyright (C) 1995 Board of Trustees, University of Illinois.
   Copyright (C) 1995, 1996, 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. */

/* This file Mule-ized (more like Mule-verified) by Ben Wing, 7-10-00. */

#ifndef INCLUDED_objects_x_impl_h_
#define INCLUDED_objects_x_impl_h_

#include "objects-impl.h"
#include "objects-x.h"
#ifdef USE_XFT
/* for resource name definitions, etc */
#include "../lwlib/lwlib-fonts.h"
#endif

#ifdef HAVE_X_WINDOWS

/*****************************************************************************
 Color-Instance
 ****************************************************************************/

struct x_color_instance_data
{
  XColor color;
  /* Yes, it looks crazy to have both the XColor and the XftColor, but
     pragmatically both are used. */
#ifdef USE_XFT
  XftColor xftColor;
#endif
  char dealloc_on_gc;
};

#define X_COLOR_INSTANCE_DATA(c) ((struct x_color_instance_data *) (c)->data)
#define COLOR_INSTANCE_X_COLOR(c) (X_COLOR_INSTANCE_DATA (c)->color)
#ifdef USE_XFT
#define COLOR_INSTANCE_X_XFTCOLOR(c) (X_COLOR_INSTANCE_DATA (c)->xftColor)
#endif
#define COLOR_INSTANCE_X_DEALLOC(c) (X_COLOR_INSTANCE_DATA (c)->dealloc_on_gc)

/*****************************************************************************
 Font-Instance
 ****************************************************************************/

struct x_font_instance_data
{
  /* X-specific information */
  /* Yes, it looks crazy to have both the XFontStruct and the XftFont, but
     pragmatically both are used (lwlib delegates labels to the widget sets,
     which internally use XFontStructs). */
  XFontStruct * font;
#ifdef USE_XFT
  XftFont *xftFont;
#endif

};

#define X_FONT_INSTANCE_DATA(f) ((struct x_font_instance_data *) (f)->data)
#define FONT_INSTANCE_X_FONT(f) (X_FONT_INSTANCE_DATA (f)->font)
#ifdef USE_XFT
#define FONT_INSTANCE_X_XFTFONT(f) (X_FONT_INSTANCE_DATA (f)->xftFont)
#endif

#endif /* HAVE_X_WINDOWS */

#endif /* INCLUDED_objects_x_impl_h_ */