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Date: Mon, 14 May 2007 18:12:23 +0300
From: Arthur Kerpician <arthur@bluechip.ro>
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Subject: [users@httpd] rewrite rules optimisation

Hi,
Im having trouble with defining some rules. This is the layout:
I want to send some GET vars in the URL like this:
http://localhost/a-1,b-2,c-3,d-4/
Based on this format, the rewriting engine should forward the request 
like this:
http://localhost/index.php?a=1&b=2&c=3&d=4

I know I can write a rule like this:
RewriteRule /a-([0-9]+),b-([0-9]+),c-([0-9]+),d-([0-9]+) 
/index.php?a=$1&b=$2&c=$3&d=$1

The problem is that one or more of these vars can be missing (some of 
them are filters, order by data info) or can be send in a different 
position than the one defined by the rule, something like this:
http://localhost/d-1,a-2/ (should rewrite to 
http://localhost/index.php?d=1&a=2)
or
http://localhost/c-1/ (should rewrite to http://localhost/index.php?c=1)

The hard way, as I see it, is to take into account all combinations / 
possibilities and write a rule for each and every case. Im not a even 
close to be a mod_rewrite fair user but I know there should be an easier 
(optimised) way of doing this.

Thanks all for your input,
Arthur

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