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view src/general.c @ 4407:4ee73bbe4f8e
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 | 64eaceca611d |
| children | 31be2a3d121d 308d34e9f07d |
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/* Commonly-used symbols Copyright (C) 1995 Sun Microsystems. Copyright (C) 1995, 1996, 2000 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. */ /* See general-slots.h. */ #include <config.h> #include "lisp.h" #define SYMBOL(fou) Lisp_Object fou #define SYMBOL_MODULE_API(fou) Lisp_Object fou #define SYMBOL_KEYWORD(la_cle_est_fou) Lisp_Object la_cle_est_fou #define SYMBOL_GENERAL(tout_le_monde, est_fou) Lisp_Object tout_le_monde #include "general-slots.h" #undef SYMBOL #undef SYMBOL_MODULE_API #undef SYMBOL_KEYWORD #undef SYMBOL_GENERAL void syms_of_general (void) { #define SYMBOL(loco) DEFSYMBOL (loco) #define SYMBOL_MODULE_API(loco) DEFSYMBOL (loco) #define SYMBOL_KEYWORD(meshugeneh) DEFKEYWORD (meshugeneh) #define SYMBOL_GENERAL(vachement, fou) defsymbol (&vachement, fou) #include "general-slots.h" #undef SYMBOL #undef SYMBOL_KEYWORD #undef SYMBOL_GENERAL }