view src/s/sco4.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 023b83f4e54b
children
line wrap: on
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/* System description file for SCO 3.2v4.
   Copyright (C) 1993, 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. */

/* Contributed by Ian Lance Taylor, ian@cygnus.com.  */

/* SCO is sort of like SVR3.  */
#include "usg5-3.h"
#define SC0_R4

#if 0 /* Turned off rather than make the Lisp code check for this. -- rms.
	 I am assuming that (at least most of) the tests for usg-unix-v
	 do the right thing for sco3.2v4 also.  Things that *might* be wrong
	 as a result of turning off these lines include the values of
	 ange-ftp-remote-shell-file-name (now remsh)
	 dired-chown-program (now just chown)
	 lpr-command (now lp)
	 nntp-buggy-select (now t)
	 rmail-spool-directory (now /usr/mail?)
	 and the actions of the function print-region-1.  */

/* SYSTEM_TYPE should indicate the kind of system you are using.  */
#undef SYSTEM_TYPE
#define SYSTEM_TYPE "SCO 3.2v4"
#endif

/* SCO has ptys with unusual names.  */

#define PTY_ITERATION \
   for (i = 0; ; i++)
#define PTY_NAME_SPRINTF \
  sprintf (pty_name, "/dev/ptyp%d", i);
#define PTY_TTY_NAME_SPRINTF \
  sprintf (pty_name, "/dev/ttyp%d", i);

/* Must use 'cc' to link when build with motif toolkit. */
#ifndef __GNUC__
#define LINKER "cc"
#endif

#ifdef HAVE_SOCKETS
#define LIBS_SYSTEM "-lsocket -lPW"

/* SCO has gettimeofday in socket library */
/* Autoconf should determine this, but for now, 
   play safe to avoid error rather than deleting this
   and risking the wrong result.  */
#ifndef HAVE_GETTIMEOFDAY
#define HAVE_GETTIMEOFDAY
#endif
#endif

/* This enables configure to tell that we have alloca.  */
#ifndef LIBS_SYSTEM
#define LIBS_SYSTEM "-lPW"
#endif

#ifdef HAVE_X11R5
/* configure can't get this right linking fails unless -lsocket is used.  */
#undef HAVE_XSCREENNUMBEROFSCREEN
#define HAVE_XSCREENNUMBEROFSCREEN
#endif

/* We don't have -loldX, and we don't need it.  */
#define LIB_XMENU_LIB

/* SCO does have TIOCGWINSZ.  */
#undef BROKEN_TIOCGWINSZ
#define NEED_PTEM_H

/* We need to link with crt1.o and crtn.o.  */
#define START_FILES "pre-crt0.o /lib/crt1.o"
#define LIB_STANDARD "-lc /lib/crtn.o"

/* Specify program for etc/fakemail to run.  Define SMAIL if you are
   using smail, don't for MMDF.  */

#ifdef SMAIL
#define MAIL_PROGRAM_NAME "/bin/smail -q0"
#else
#define MAIL_PROGRAM_NAME "/usr/lib/mail/execmail"
#endif

/* Tell process_send_signal to use VSUSP instead of VSWTCH.  */
#define PREFER_VSUSP

/* wjs@wiis.wang.com says SCO 3.2 v4.2 "has sockets",
   but only for network connections.
   It doesn't have the kind of sockets that emacsclient.c
   and emacsserver.c would use.  */
#define NO_SOCKETS_IN_FILE_SYSTEM