mod_rewite problems unders Solaris 8

Problem:
Trying to setup mass virtual hosting via mod_rewrite example: http://www.engelschall.com/pw/apache/rewriteguide. Looking to set virtual host document root based on incoming URI. The lookup in in the text vhost map fails because the key being passed to it is "%1" and not the value from the previous RewriteCond.

rewrite.log:
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (2) init rewrite engine with requested uri /Sites/default.html
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (3) applying pattern '^/(.*)$' to uri '/Sites/default.html'
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (4) RewriteCond: input='' pattern='!^/commonurl1/.*' => matched
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (4) RewriteCond: input='' pattern='!^/commonurl2/.*' => matched
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (4) RewriteCond: input='testqa16:82' pattern='!^$' => matched
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (5) map lookup OK: map=lowercase key=%{HTTP_HOST -> val=%{http_host
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (4) RewriteCond: input='%{http_host|NONE}' pattern='^(.+)$' => matched
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (6) cache lookup FAILED, forcing new map lookup
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (5) map lookup FAILED: map=vhost[txt] key=%1
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (4) RewriteCond: input='' pattern='^(/.*)$' => not-matched
10.207.13.51 - - [22/Nov/2000:14:29:09 -0800] [realwww.foo.com/sid#a1af8][rid#b7a80/initial] (1) pass through /Sites/default.html

Question:
Why does map=lowercase key=%{HTTP_HOST AND map=vhost[txt] key=%1 NOT have the replaced values for these lookups?

>>map lookup OK: map=lowercase key=%{HTTP_HOST-> val=%{http_host

Converting HTTP_HOST to http_host doesn't do what you want. To convert to lowercase, I would do:

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteMap lc int:tolower
</IfModule>

Example:

RewriteRule ^([A-Za-z0-9_]+)([^/A-Za-z0-9_]+)/?$ $1/$2/
RewriteRule ^([^/]+)/?(.*)/$ index.php?category=${lc:$1}&id=$2 [T=application/x-httpd-php,L]

$1, the category, will convert to lowercase while $2, the id, remains as is.

The IfModule idiom is useful, thanks. I found one error in my httpd.conf:
RewriteCond %{REQUEST_URL} ...

should be

RewriteCond %{REQUEST_URI}

The docs have REQUEST_URL with the letter "L" where the variable is "REQUEST_URI" with an "I".

The key=%1 is still incorrect. When I run the same config params on another platform the key="testqa16:82" value is correct?!

The problem seems to be isolated to 1.3.14. When I compile apache 1.3.9 + mod_rewrite the key is correctly passed to the script/program/text file.

The problem exists under Solaris 2.6 and 2.8.

I will check if apache 1.3.14 under linux exhibits the same problem.