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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 3ecd8885ac67
children
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/* Synched up with: FSF 19.31. */

/* system description file for hpux version 8.
   This contains changes that were suggested "for the hp700".
   They were not needed for the 800.
   Our conjecture that they are needed for hpux version 8,
   which is what runs on the 700.  */

/* XEmacs change -- suggested by hamish@bnr.ca */
#define DONT_DEFINE_NO_REMAP /* `static' hack not needed */

#include "hpux.h"

#define HPUX8

/* XEmacs change -- suggested by hamish@bnr.ca */
#undef HPUX_PRE_8_0

/* XEmacs change -- Ugly, nasty kludge to prevent X11R4 Xos.h from
   redefining struct timeval and struct timezone. */
#define __TIMEVAL__

/* Don't use shared libraries.  unexec doesn't handle them.
   Note GCC automatically passes -a archive to ld, and it has its own
   conflicting -a.  */
#ifdef __GNUC__
/* No need to specify roundabout way of linking temacs.  */
#define ORDINARY_LINK

#ifdef HPUX_USE_SHLIBS
#define LD_SWITCH_SYSTEM
#else
#define LD_SWITCH_SYSTEM "-Xlinker -a -Xlinker archive"
#endif

#else /* not __GNUC__ */

#if (defined(hp9000s700) || defined(__hp9000s700))
#ifdef HPUX_USE_SHLIBS
#define LD_SWITCH_SYSTEM "-L/lib/pa1.1"
#else
#define LD_SWITCH_SYSTEM "-a archive -L/lib/pa1.1"
#endif
#else /* not (defined(hp9000s700) || defined(__hp9000s700)) */
#ifdef HPUX_USE_SHLIBS
#define LD_SWITCH_SYSTEM
#else
#define LD_SWITCH_SYSTEM "-a archive"
#endif
#endif /* not (defined(hp9000s700) || defined(__hp9000s700)) */

#endif /* not __GNUC__ */

/* XEmacs change */
#ifndef __GNUC__
#define C_SWITCH_SYSTEM "-Aa -D_HPUX_SOURCE"
#endif

/* Some hpux 8 machines seem to have TIOCGWINSZ,
   and none have sioctl.h, so might as well define this.  */
#define NO_SIOCTL_H

#if 0 /* autoconf should be detecting the presence or absence of 
	 random and srandom now.  */
/* If you use X11R4 you must define this.  If you use
   X11R5 you must comment this out */
/* #define HAVE_RANDOM */
#define random foo_random
#define srandom foo_srandom
#endif

#if 0  /* This seems to be spurious.  */
/* "X11R5" on hpux8 doesn't have this function, which is supposed to exist
   in X11R5.  Maybe things will work if we just don't call it.  */
#define NO_XRM_SET_DATABASE
#endif

/* Enable a special hack in XTread_socket.  */
/* XEmacs change:  we don't use this. */
#if 0
#define X_IO_BUG
#endif