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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 943eaba38521
children
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/* Definitions file for XEmacs running on UMAX 4.2
   Copyright (C) 1985, 1986 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 UNIPLUS */
/* #define USG5 */
/* #define USG */
/* #define BSD4_1 */
#define BSD4_2
/* #define BSD4_3 */
#define BSD
#define UMAX4_2
#define UMAX

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

#define SYSTEM_TYPE "berkeley-unix"

/* 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 'p'

/* 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 file containing the kernel's symbol table is called /vmunix.  */

#define KERNEL_FILE "/vmunix"

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

#define LDAV_SYMBOL "_avenrun"

/* Specify alignment requirement for start of text and data sections
   in the executable file.  */

#define SECTION_ALIGNMENT pagemask


#define SEGMENT_MASK	(64 * 1024 - 1)


/* crt0.c needs this for compilation because it uses asm.  */  

#define C_SWITCH_ASM -q nodirect_code

/* Encore machines with APC processor boards align sections on 4M
   boundaries, so it is not easy to remap the start of the text segment
   in the unexec() routine.  For them you need the following two lines.
   For DPC processors you can enable these or not, as you wish, but
   you will get better performance without them.  */

/* #define NO_REMAP
   #define TEXT_START 0
*/

/* Formerly "BSD_PGRPS" */

#define SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP