Auto virtual host with Rewrite..

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I'm running apache win32 and it gives me the error


Rewritelog logs/rewrite.log
RewritelogLevel 9

RewriteMap lowercase int:tolower
RewriteEngine on

RewriteCond ${lowercase:%{HTTP_HOST}} !^$
RewriteCond ${lowercase:%{HTTP_HOST}} !^

http://www\.synneergy.com$

RewriteCond ${lowercase:%{HTTP_HOST}} ^(www\.|)([^.]+)\.synneergy\.com$
RewriteRule ^(.+) ${lowercase:%{HTTP_HOST}}$1 [C]
RewriteRule ^(www\.|)([^.]+)\.synneergy\.com(.*) /users/$2$3 [L]

RewriteCond ${lowercase:%{HTTP_HOST}} ^(www\.|)[^.]+\.[^.]+\.synneergy\.com$
RewriteRule ^(.+) ${lowercase:%{HTTP_HOST}}$1 [C]
RewriteRule ^(www\.|)([^.]+)\.([^.]+)\.synneergy\.com(.*) /users/$3/$2$4 [L]


it gives me the following error:
Syntax error on line 997 of e:/web/apache/conf/httpd.conf:
RewriteCond: cannot compile regular expression '^(www\.|)([^.]+)\.synneergy\.com$'