Mercurial > hg > xemacs-beta
view src/s/cygwin.sc @ 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 | 1ab9c4a77230 |
children |
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/* Default linker script, for normal executables */ OUTPUT_FORMAT(pei-i386) SEARCH_DIR("/usr/i686-pc-cygwin/lib"); SEARCH_DIR("/usr/lib"); SEARCH_DIR("/usr/lib/w32api"); ENTRY(_mainCRTStartup) SECTIONS { .text __image_base__ + __section_alignment__ : { *(.init) *(.text) *(SORT(.text$*)) *(.glue_7t) *(.glue_7) ___CTOR_LIST__ = .; __CTOR_LIST__ = . ; LONG (-1); *(SORT(.ctors.*)); *(.ctors); *(.ctor); LONG (0); ___DTOR_LIST__ = .; __DTOR_LIST__ = . ; LONG (-1); *(SORT(.dtors.*)); *(.dtors); *(.dtor); LONG (0); *(.fini) /* ??? Why is .gcc_exc here? */ *(.gcc_exc) etext = .; *(.gcc_except_table) } /* The Cygwin32 library uses a section to avoid copying certain data on fork. This used to be named ".data". The linker used to include this between __data_start__ and __data_end__, but that breaks building the cygwin32 dll. Instead, we name the section ".data_cygwin_nocopy" and explictly include it after __data_end__. */ .data BLOCK(__section_alignment__) : { __data_start__ = . ; *(.data) *(.data2) *(SORT(.data$*)) __data_end__ = . ; *(.data_cygwin_nocopy) } .bss BLOCK(__section_alignment__) : { __bss_start__ = . ; *(.bss) *(COMMON) __bss_end__ = . ; } .rdata BLOCK(__section_alignment__) : { *(.rdata) *(SORT(.rdata$*)) *(.eh_frame) ___RUNTIME_PSEUDO_RELOC_LIST__ = .; __RUNTIME_PSEUDO_RELOC_LIST__ = .; *(.rdata_runtime_pseudo_reloc) ___RUNTIME_PSEUDO_RELOC_LIST_END__ = .; __RUNTIME_PSEUDO_RELOC_LIST_END__ = .; } .pdata BLOCK(__section_alignment__) : { *(.pdata) } .edata BLOCK(__section_alignment__) : { *(.edata) } /DISCARD/ : { *(.debug$S) *(.debug$T) *(.debug$F) *(.drectve) } .idata BLOCK(__section_alignment__) : { /* This cannot currently be handled with grouped sections. See pe.em:sort_sections. */ SORT(*)(.idata$2) SORT(*)(.idata$3) /* These zeroes mark the end of the import list. */ LONG (0); LONG (0); LONG (0); LONG (0); LONG (0); SORT(*)(.idata$4) SORT(*)(.idata$5) SORT(*)(.idata$6) SORT(*)(.idata$7) } .CRT BLOCK(__section_alignment__) : { *(SORT(.CRT$*)) } .endjunk BLOCK(__section_alignment__) : { /* end is deprecated, don't use it */ end = .; _end = .; __end__ = .; } .rsrc BLOCK(__section_alignment__) : { *(.rsrc) *(SORT(.rsrc$*)) } .reloc BLOCK(__section_alignment__) : { *(.reloc) } .stab BLOCK(__section_alignment__) (NOLOAD) : { [ .stab ] } .stabstr BLOCK(__section_alignment__) (NOLOAD) : { [ .stabstr ] } }