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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 308d34e9f07d 861f2601a38b
line wrap: on
line source

/* machine description file for hp9000 series 800 machines.
   Copyright (C) 1987 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs 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.

GNU Emacs 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. */

/* The following line tells the configuration script what sort of 
   operating system this machine is likely to run.
   USUAL-OPSYS="hpux"  */

/* Now define a symbol for the cpu type, if your compiler
   does not define it automatically:
   Ones defined so far include vax, m68000, ns16000, pyramid,
   orion, tahoe, APOLLO and many others */
#ifndef hp9000s800
#	define hp9000s800
#endif


#ifdef __hpux
/* Now define a symbol for the cpu type, if your compiler
   does not define it automatically:
   Ones defined so far include vax, m68000, ns16000, pyramid,
   orion, tahoe, APOLLO and many others */
#ifndef hp9000s800
#     define hp9000s800
#endif

/* Data type of load average, as read out of kmem.  */

#define LOAD_AVE_TYPE double

/* Convert that into an integer that is 100 for a load average of 1.0  */

#define LOAD_AVE_CVT(x) ((int) (x * 100.0))

/* the data segment on this machine always starts at address 0x40000000. */

#ifdef DATA_START
#undef DATA_START
#endif
#ifdef TEXT_START
#undef TEXT_START
#endif

#define DATA_START    0x40000000
#define TEXT_START    0x00000000

/* Define NO_REMAP if memory segmentation makes it not work well
   to change the boundary between the text section and data section
   when Emacs is dumped.  If you define this, the preloaded Lisp
   code will not be sharable; but that's better than failing completely.  */

#define NO_REMAP

/* This machine requires completely different unexec code
   which lives in a separate file.  Specify the file name.  */

#define UNEXEC "unexhp9k800.o"

#define LIBS_MACHINE
#define LIBS_DEBUG


/* The symbol in the kernel where the load average is found
   is named _avenrun.  At this time there are two major flavors
   of hp-ux (there is the s800 and s300 (s200) flavors).  The
   differences are thusly moved to the corresponding machine description file.
*/

/* no underscore please */
#define LDAV_SYMBOL "avenrun"

#if 0   /* Supposedly no longer true.  */
/* In hpux, for unknown reasons, S_IFLNK is defined even though
   symbolic links do not exist.
   Make sure our conditionals based on S_IFLNK are not confused.

   Here we assume that stat.h is included before config.h
   so that we can override it here.  */

#undef S_IFLNK
#endif

#endif /* __hpux */