Mercurial > hg > xemacs-beta
view src/m/luna88k.h @ 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 | ecf1ebac70d8 |
| children |
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/* m- file for LUNA 88000 running Mach. originaly wrote by Jun. 26th '90 Akitoshi MORISHIMA ohm@astem.or.jp modified for mule-2.0 by Sep. 10th '94 MUKAIGAWA Shin'ichi shin@ari.ncl.omron.co.jp Copyright (C) 1990 Free Software Foundation, Inc. This file is part of GNU Emacs. GNU Emacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY. No author or distributor accepts responsibility to anyone for the consequences of using it or for whether it serves any particular purpose or works at all, unless he says so in writing. Refer to the GNU Emacs General Public License for full details. Everyone is granted permission to copy, modify and redistribute GNU Emacs, but only under the conditions described in the GNU Emacs General Public License. A copy of this license is supposed to have been given to you along with GNU Emacs so you can know your rights and responsibilities. It should be in a file named COPYING. Among other things, the copyright notice and this notice must be preserved on all copies. */ /* Synched up with: Mule 2.0. Not in FSF. */ /* Data type of load average, as read out of kmem. */ #define LOAD_AVE_TYPE long /* Convert that into an integer that is 100 for a load average of 1.0 */ #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) /* On Mach, LSCALE is defined instead of FSCALE, in h/kernel.h, as 1000. */ #define FSCALE 1000 /* Mask for address bits within a memory segment */ /* In other words, data segment starts from the address that is end of text segment rounded up to next (SEGMENT_MASK + 1) boundary. */ #define SEGSIZ 0x20000 #define SEGMENT_MASK (SEGSIZ - 1) /* macros to make unexec work right */ #define A_TEXT_OFFSET(HDR) sizeof(HDR) #define A_TEXT_SEEK(HDR) sizeof(HDR) /* Memory management mechanism is different on Mach, so emacs-supplied malloc.c does not work. */ #define SYSTEM_MALLOC /* We want errno in crt0.c */ #define NEED_ERRNO /* Mach has 'init_process()' in libc.a, conflicting with emacs' 'init_process()', causing make to stop. So redefining that. */ #define init_process init_process_emacs #define C_COMPILER gcc #define LOAD_AVE_MACH #define LIBS_MACHINE "-lmach" #define LIB_X11_LIB "-L/usr/lib/X11 -lX11 -lXwchar" #define CRT0_COMPILE "cc -c -O -Demacs $(ALL_CFLAGS)"