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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@101129 13f79535-47bb-0310-9956-ffa450edef68

expression optimization/debugging


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when necessary.  Which is to say that it's necessary in all cases except
for prefork, where the change to apr-util to have it use the allocator
from the pool passed in is already sufficient.

Reviewed by:	Jean-Jacques Clar, Sander Striker, Brad Nicholes


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mod_dav_lock.c:72: warning: no previous prototype for `dav_generic_get_lockdb_path'
locks.c: In function `dav_generic_really_open_lockdb':
locks.c:356: warning: unused variable `db'
locks.c: In function `dav_generic_load_lock_record':
locks.c:606: warning: unused variable `buf'
locks.c: In function `dav_generic_remove_lock':
locks.c:1081: warning: unused variable `buf'


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- check more exactly whether the previous token is correct
- flip the tree from left-weighted to right-weighted, which is
  more natural and more efficient, since we don't need to loop
  up to the root, but just until the next and/or token.
- that way, flip the short circuit evaluation again to cut
  the right side now if possible...


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other MPM globals whenever HTTPD is started or restarted.


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invalid expressions. Checking these all manually would take a lot more
cycles than it'd save. Sorry.


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result of the enclosed expression. Since this expression will never
touched again during the tree-building stage, we can safely strip
TOKEN_GROUP from the tree and later evaluate the child directly.

The only side effect of this change is, that grouped strings on the
left side of EQ/NE/etc are now allowed (was invalid before), which
is acceptable IMHO (e.g. (foo bar baz) = zzzip)


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- the left side of such an operator can *only* be a string
- get a rid of the while-loop and re-organize the code
  to better reflect what we're actually doing there


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is way more useful if we short circuit the left side. So evaluate
the right side first. This, however, reverses my statement about
regex optimization (you have to put them onto the right side of an
&& or || operator to get a chance that the left side will be cutted).


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error was caught during the evaluation stage)


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code. Get a rid of this duplication.


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first parsed explicitly. There's probably also a minor performance improvement
on invalid expressions ... ;-)


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Submitted by: Jari Alto <jari.aalto@poboxes.com>
PR: 22348


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possible if there's no regex on the short circuited side (since it fills
in the backref data). The user may optimize this by putting the regex
onto the left side of the operator.


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0.0.0.0 to fix build on FreeBSD 4.2, and fix logic.

Reviewed by: Colm MacCarthaigh


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backslash will be skipped and not recognized as an escape character.
That way, <!--#if expr="\)"--> or the like won't work correctly.
Fix it now.


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- remove useless stuff
- shorten the code by inverting the switch/case conditions


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parentheses.


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...and saw that the expression parser generates inconsistent trees under
some circumstances. So I've decided that the dumper code may be of public
interest :). The actual bugfixes will follow later.


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that getaddrinfo() returned to us and skipping binding to IPv4 addresses
if the previous bind was to an IPv6 of the same address and port.

Justin made some style changes, added a (struct in6_addr*) to make it compile
on *BSD as well as an attempt to make the addition of the listener to the list
a little more efficient.

Submitted by:	Colm MacCarthaigh <colm@stdlib.net>
Reviewed by:	Justin Erenkrantz


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are correct :)


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- improved efficiency and memory footprint
- improved readability
- style
This includes an overhaul of the debugging macros, mostly
that they are not always in the way if one tries to understand
the code ;-)


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(give warnings on out of range or undefined captures).


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timeformat during runtime. The common case doesn't need max_string_len
at all and won't be configured more than one or two times.


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