annotate src/s/hpux8.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 3ecd8885ac67
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
1 /* Synched up with: FSF 19.31. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
2
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
3 /* system description file for hpux version 8.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
4 This contains changes that were suggested "for the hp700".
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
5 They were not needed for the 800.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
6 Our conjecture that they are needed for hpux version 8,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
7 which is what runs on the 700. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
8
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
9 /* XEmacs change -- suggested by hamish@bnr.ca */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
10 #define DONT_DEFINE_NO_REMAP /* `static' hack not needed */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
11
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
12 #include "hpux.h"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
13
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
14 #define HPUX8
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
15
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
16 /* XEmacs change -- suggested by hamish@bnr.ca */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
17 #undef HPUX_PRE_8_0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
18
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
19 /* XEmacs change -- Ugly, nasty kludge to prevent X11R4 Xos.h from
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
20 redefining struct timeval and struct timezone. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
21 #define __TIMEVAL__
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
22
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
23 /* Don't use shared libraries. unexec doesn't handle them.
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
24 Note GCC automatically passes -a archive to ld, and it has its own
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
25 conflicting -a. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
26 #ifdef __GNUC__
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
27 /* No need to specify roundabout way of linking temacs. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
28 #define ORDINARY_LINK
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
29
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
30 #ifdef HPUX_USE_SHLIBS
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
31 #define LD_SWITCH_SYSTEM
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
32 #else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
33 #define LD_SWITCH_SYSTEM "-Xlinker -a -Xlinker archive"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
34 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
35
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
36 #else /* not __GNUC__ */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
37
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
38 #if (defined(hp9000s700) || defined(__hp9000s700))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
39 #ifdef HPUX_USE_SHLIBS
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
40 #define LD_SWITCH_SYSTEM "-L/lib/pa1.1"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
41 #else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
42 #define LD_SWITCH_SYSTEM "-a archive -L/lib/pa1.1"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
43 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
44 #else /* not (defined(hp9000s700) || defined(__hp9000s700)) */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
45 #ifdef HPUX_USE_SHLIBS
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
46 #define LD_SWITCH_SYSTEM
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
47 #else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
48 #define LD_SWITCH_SYSTEM "-a archive"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
49 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
50 #endif /* not (defined(hp9000s700) || defined(__hp9000s700)) */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
51
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
52 #endif /* not __GNUC__ */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
53
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
54 /* XEmacs change */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
55 #ifndef __GNUC__
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
56 #define C_SWITCH_SYSTEM "-Aa -D_HPUX_SOURCE"
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
57 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
58
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
59 /* Some hpux 8 machines seem to have TIOCGWINSZ,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
60 and none have sioctl.h, so might as well define this. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
61 #define NO_SIOCTL_H
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
62
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
63 #if 0 /* autoconf should be detecting the presence or absence of
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
64 random and srandom now. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
65 /* If you use X11R4 you must define this. If you use
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
66 X11R5 you must comment this out */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
67 /* #define HAVE_RANDOM */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
68 #define random foo_random
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
69 #define srandom foo_srandom
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
70 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
71
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
72 #if 0 /* This seems to be spurious. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
73 /* "X11R5" on hpux8 doesn't have this function, which is supposed to exist
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
74 in X11R5. Maybe things will work if we just don't call it. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
75 #define NO_XRM_SET_DATABASE
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
76 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
77
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
78 /* Enable a special hack in XTread_socket. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
79 /* XEmacs change: we don't use this. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
80 #if 0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
81 #define X_IO_BUG
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
82 #endif