view src/s/umips.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
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/* Synched up with: FSF 19.31. */

/* Definitions file for XEmacs running on Mips operating system.
   That system can emulate either BSD or Sys V, in either case with changes.
   If BSD is defined, we assume BSD is being emulated; otherwise, Sys V.  */

#ifdef BSD
#include "bsd4-3.h"

#define C_SWITCH_SYSTEM "-systype bsd43"
#define LD_SWITCH_SYSTEM "-systype bsd43"
#undef LIBS_SYSTEM
#define LIBS_DEBUG
#define START_FILES "pre-crt0.o /lib/crt1.o"
#define LIB_STANDARD "-lc /usr/lib/crtn.o"

#define COFF
#define TERMINFO
#undef MAIL_USE_FLOCK  /* Someone should check this.  */

#else /* not BSD */

#define DONT_DEFINE_NO_REMAP /* `static' hack not needed */
#include "usg5-2-2.h"

#undef LIBS_SYSTEM
#define LIBS_DEBUG
#define START_FILES "pre-crt0.o /usr/lib/crt1.o"
#define LIB_STANDARD "-lbsd -lc /usr/lib/crtn.o"
/* #define LIBS_TERMCAP -lcurses */

#define C_SWITCH_SYSTEM "-I/usr/include/bsd"

/* Don't try to use SIGIO even though it is defined.  */
#define BROKEN_SIGIO

/* Describe special kernel features.  */

#if defined(emacs)
#include <bsd/sys/time.h>
#endif

/* The `select' in the system won't work for pipes,
   so don't use it.  */
#define BROKEN_SELECT

/* ??? */
#define IRIS

#endif /* not BSD */

/* High order bit must be stripped off nlist return values */
#define FIXUP_KERNEL_SYMBOL_ADDR(NL)  (NL)[0].n_value &= 0x7fffffff;