Having trouble with a rewrite rule

Posted on 2011-09-08
Last Modified: 2012-05-12
I'm using a rewrite rule to parse URLS and break them down into parameters:-

]RewriteRule ^([A-Za-z0-9\-]+)/([A-Za-z0-9\-]+)/([A-Za-z0-9\-]+)/([A-Za-z0-9\-]+)/([A-Za-z0-9\-]+)$ /indexa.php?a=$1&b=$2&c=$3&d=$4&e=$5 [L] 
RewriteRule ^([A-Za-z0-9\-]+)/([A-Za-z0-9\-]+)/([A-Za-z0-9\-]+)/([A-Za-z0-9\-]+)$ /indexa.php?a=$1&b=$2&c=$3&d=$4 [L]
RewriteRule ^([A-Za-z0-9\-]+)/([A-Za-z0-9\-]+)/([A-Za-z0-9\-]+)$ /indexa.php?a=$1&b=$2&c=$3 [L]
RewriteRule ^([A-Za-z0-9\-]+)/([A-Za-z0-9\-]+)$ /indexa.php?a=$1&b=$2 [L]
RewriteRule ^([A-Za-z0-9\-]+)$ /indexa.php?a=$1 [L]
RewriteRule ^()$ /indexa.php [L]

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This has been working fine until I try and install  a CMS add in. I put a rule in to exclude the CMS system:-

RewriteRule ^/cms/(.*)$ /cms/$1 [L]

Open in new window

In most cases such as:-


The rule behaves fine. However fails to rewrite URLs to folders without the trailing / eg:-


I'm not A1 on regex. Am I missing something obvious here?

I can't easily change the way that these latter URLS are coded in the CMS system as it supplied to me to use.
Question by:cescentman
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Assisted Solution

cescentman earned 0 total points
ID: 36509234
Any takers?
LVL 26

Expert Comment

ID: 36538441
Hi, loose your CMS rule and stick the following rules in front of your original block, to bypass the logic if the URL starts with a /cms/:

# Skip the next block if the URL starts with /cms
RewriteRule /cms/?$.  -   [S=7,NC]
RewriteRule /cms/?.*  -   [S=6,NC]

Adjust the skip rule account [s=#] to suit.
LVL 26

Assisted Solution

arober11 earned 100 total points
ID: 36538455
Sorry typo, must remember to turn of iOS's predictive text before typing code:

# Skip the next block if the URL starts with /cms
RewriteRule /cms/?$  -   [S=7,NC]
RewriteRule /cms/.*    -   [S=6,NC]
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Accepted Solution

cescentman earned 0 total points
ID: 36542961
Thanks for the help. This didn't work. Finally however I lighted on:-

RewriteRule ^cms - [L]

Which solves the problem.

Author Closing Comment

ID: 36565425
Thanks for helping
LVL 26

Expert Comment

ID: 36545633
One thing i did't spot earlier I'm guessing your rules are a .htaccess file rather than the more efficient httpd.conf, as no leading / in you chosen solution.

If you are using a .htaccess file removing the leading / should get the logic to work, while permitting you to have some cms rules further down in the file.

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