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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 ecf1ebac70d8
children
line wrap: on
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/* Header file for Harris CXUX.
   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: FSF 19.31. */

/*
 *	Define symbols to identify the version of Unix this is.
 *	Define all the symbols that apply correctly.
 */

#define USG5
#define USG

#ifndef	_CX_UX
#define	_CX_UX 1
#endif

/* Define this symbol if you are running CX/UX 7.0 or later (7.0 introduced
 * support for ELF files, and while we still build emacs in COFF format, the
 * way it is linked is different for 7.0).
 */
/* #define USING_CX_UX_7 */

#ifdef USING_CX_UX_7
#define LINKER "/usr/sde/coff/usr/bin/ld"
#define LD_SWITCH_SYSTEM "-L/usr/sde/coff/usr/lib -zzero_word"
#define START_FILES "pre-crt0.o /usr/sde/coff/usr/lib/crt0.o /usr/sde/coff/usr/lib/m88100.o"
#else	/* !USING_CX_UX_7 */
#ifdef	_M88K
#define	START_FILES "pre-crt0.o /lib/crt0.o"
#else
#define	START_FILES "cxux-crt0.o /lib/crt0.o"
#endif
#endif	/* USING_CX_UX_7 */

/* SYSTEM_TYPE should indicate the kind of system you are using.
 It sets the Lisp variable system-type.  */

#define SYSTEM_TYPE "usg-unix-v"

#define C_SWITCH_SYSTEM "-Xa"

/* Letter to use in finding device name of first pty,
  if system supports pty's.  'a' means it is /dev/ptya0  */

#define FIRST_PTY_LETTER 'A'
#define	PTY_ITERATION	for (c = 'A'; c <= 'P'; c++) for (i = 0; i < 16; i++)

/* If your system uses COFF (Common Object File Format) then define the
   preprocessor symbol "COFF". */

#define COFF

/* define MAIL_USE_FLOCK if the mailer uses flock
   to interlock access to /usr/spool/mail/$USER.
   The alternative is that a lock file named
   /usr/spool/mail/$USER.lock.  */

#define MAIL_USE_FLOCK


/* The symbol in the kernel where the load average is found
   is named _avenrun.  */

#define LDAV_SYMBOL "_avenrun"

#define KERNEL_FILE "/unix"

/* There are too many kludges required to redefine malloc - use the system
   one */
#define SYSTEM_MALLOC

/* const really does work, but I can't get configure to run the C compiler
 * with the right options so it figures that out.
 */
#undef const

/*
 * <pwd.h> already declares getpwuid, and with a uid_t argument in ANSI C
 * mode.  Define this so xrdb.c will compile
 */
#ifdef	__STDC__
#define	DECLARE_GETPWUID_WITH_UID_T
#endif