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- More improvements to egf-speedup patch (bug #138076).

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This commit is contained in:
Tim Waugh 2004-11-04 15:17:42 +00:00
parent 6f2e162151
commit 9fa0ec14fd
2 changed files with 61 additions and 40 deletions
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96
grep-2.5.1-egf-speedup.patch
View File

@ -1,5 +1,5 @@
--- grep-2.5.1/src/search.c.egf-speedup 2004-11-04 10:42:45.000000000 +0000
+++ grep-2.5.1/src/search.c 2004-11-04 11:12:44.688292744 +0000
--- grep-2.5.1/src/search.c.egf-speedup 2004-11-04 14:34:20.883140606 +0000
+++ grep-2.5.1/src/search.c 2004-11-04 14:53:29.991266613 +0000
@@ -70,9 +70,6 @@
call the regexp matcher at all. */
static int kwset_exact_matches;
@ -79,30 +79,34 @@
#endif /* MBS_SUPPORT */
buflim = buf + size;
@@ -376,15 +322,34 @@
@@ -373,18 +319,42 @@
if (kwset)
{
/* Find a possible match using the KWset matcher. */
+#ifdef MBS_SUPPORT
+ size_t bytes_left = 0;
+#endif /* MBS_SUPPORT */
size_t offset = kwsexec (kwset, beg, buflim - beg, &kwsm);
if (offset == (size_t) -1)
goto failure;
+#ifdef MBS_SUPPORT
+ if (MB_CUR_MAX > 1)
+ {
+ size_t n = offset;
+ while (n)
+ bytes_left = offset;
+ while (bytes_left)
+ {
+ size_t len = mbrlen (beg, n, &mbs);
+ size_t len = mbrlen (beg, bytes_left, &mbs);
+ if (len == (size_t) -1 || len == (size_t) -2 || len == 0)
+ {
+ /* Incomplete character. */
+ memset (&mbs, '\0', sizeof (mbstate_t));
+ beg += n;
+ beg += bytes_left;
+ break;
+ }
+
+ beg += len;
+ n -= len;
+ bytes_left -= len;
+ }
+ if (n)
+ continue;
+ }
+ else
+#endif /* MBS_SUPPORT */
@ -111,44 +115,58 @@
run it through DFA. */
end = memchr(beg, eol, buflim - beg);
end++;
-#ifdef MBS_SUPPORT
#ifdef MBS_SUPPORT
- if (MB_CUR_MAX > 1 && mb_properties[beg - buf] == 0)
- continue;
+ if (MB_CUR_MAX > 1 && bytes_left)
continue;
-#endif
+#endif /* MBS_SUPPORT */
while (beg > buf && beg[-1] != eol)
--beg;
if (kwsm.index < kwset_exact_matches)
@@ -399,6 +364,29 @@
@@ -395,13 +365,41 @@
else
{
/* No good fixed strings; start with DFA. */
+#ifdef MBS_SUPPORT
+ size_t bytes_left = 0;
+#endif /* MBS_SUPPORT */
size_t offset = dfaexec (&dfa, beg, buflim - beg, &backref);
if (offset == (size_t) -1)
break;
/* Narrow down to the line we've found. */
+#ifdef MBS_SUPPORT
+ if (MB_CUR_MAX > 1)
+ {
+ size_t n = offset;
+ while (n)
+ bytes_left = offset;
+ while (bytes_left)
+ {
+ size_t len = mbrlen (beg, n, &mbs);
+ size_t len = mbrlen (beg, bytes_left, &mbs);
+ if (len == (size_t) -1 || len == (size_t) -2 || len == 0)
+ {
+ /* Incomplete character. */
+ memset (&mbs, '\0', sizeof (mbstate_t));
+ beg += n;
+ beg += bytes_left;
+ break;
+ }
+
+ beg += len;
+ n -= len;
+ bytes_left -= len;
+ }
+ if (n)
+ continue;
+ }
+ else
+#endif /* MBS_SUPPORT */
beg += offset;
end = memchr (beg, eol, buflim - beg);
end++;
@@ -469,15 +457,6 @@
+#ifdef MBS_SUPPORT
+ if (MB_CUR_MAX > 1 && bytes_left)
+ continue;
+#endif /* MBS_SUPPORT */
while (beg > buf && beg[-1] != eol)
--beg;
}
@@ -469,15 +467,6 @@
} /* for (beg = end ..) */
failure:
@ -164,7 +182,7 @@
return (size_t) -1;
success_in_beg_and_end:
@@ -486,15 +465,6 @@
@@ -486,15 +475,6 @@
/* FALLTHROUGH */
success_in_start_and_len:
@ -180,7 +198,7 @@
*match_size = len;
return start;
}
@@ -531,17 +501,8 @@
@@ -531,17 +511,8 @@
struct kwsmatch kwsmatch;
size_t ret_val;
#ifdef MBS_SUPPORT
@ -200,7 +218,7 @@
#endif /* MBS_SUPPORT */
for (beg = buf; beg <= buf + size; ++beg)
@@ -550,8 +511,28 @@
@@ -550,8 +521,28 @@
if (offset == (size_t) -1)
goto failure;
#ifdef MBS_SUPPORT
@ -208,54 +226,54 @@
- continue; /* It is a part of multibyte character. */
+ if (MB_CUR_MAX > 1)
+ {
+ size_t n = offset;
+ while (n)
+ size_t bytes_left = offset;
+ while (bytes_left)
+ {
+ size_t len = mbrlen (beg, n, &mbs);
+ size_t len = mbrlen (beg, bytes_left, &mbs);
+ if (len == (size_t) -1 || len == (size_t) -2 || len == 0)
+ {
+ /* Incomplete character. */
+ memset (&mbs, '\0', sizeof (mbstate_t));
+ beg += n;
+ beg += bytes_left;
+ break;
+ }
+
+ beg += len;
+ n -= len;
+ bytes_left -= len;
+ }
+
+ if (n)
+ if (bytes_left)
+ continue;
+ }
+ else
#endif /* MBS_SUPPORT */
beg += offset;
len = kwsmatch.size[0];
@@ -587,6 +568,31 @@
@@ -587,6 +578,31 @@
if (offset == -1) {
break; /* Try a different anchor. */
}
+#ifdef MBS_SUPPORT
+ if (MB_CUR_MAX > 1)
+ {
+ size_t n = offset;
+ while (n)
+ size_t bytes_left = offset;
+ while (bytes_left)
+ {
+ size_t len = mbrlen (beg, n, &mbs);
+ size_t len = mbrlen (beg, bytes_left, &mbs);
+ if (len == (size_t) -1 || len == (size_t) -2 ||
+ len == 0)
+ {
+ /* Incomplete character. */
+ memset (&mbs, '\0', sizeof (mbstate_t));
+ beg += n;
+ beg += bytes_left;
+ break;
+ }
+
+ beg += len;
+ n -= len;
+ bytes_left -= len;
+ }
+
+ if (n)
+ if (bytes_left)
+ break; /* Try a different anchor. */
+ }
+ else
@ -263,7 +281,7 @@
beg += offset;
len = kwsmatch.size[0];
}
@@ -597,20 +603,30 @@
@@ -597,20 +613,30 @@
}
failure:
@ -303,7 +321,7 @@
while (buf < beg && beg[-1] != eol)
--beg;
len = end - beg;
@@ -618,15 +634,6 @@
@@ -618,15 +644,6 @@
success_in_beg_and_len:
*match_size = len;

5
grep.spec
View File

@ -1,7 +1,7 @@
Summary: The GNU versions of grep pattern matching utilities.
Name: grep
Version: 2.5.1
Release: 33
Release: 34
License: GPL
Group: Applications/Text
Source: ftp://ftp.gnu.org/pub/gnu/grep/grep-%{version}.tar.bz2
@ -81,6 +81,9 @@ fi
%{_mandir}/*/*
%changelog
* Thu Nov 4 2004 Tim Waugh <twaugh@redhat.com> 2.5.1-34
- More improvements to egf-speedup patch (bug #138076).
* Thu Nov 4 2004 Tim Waugh <twaugh@redhat.com> 2.5.1-33
- Small improvements to egf-speedup patch.