apache - How to write RewriteCond base on directory name character length? -

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i trying learn how apply rewritecond based on length of "request uri", or directory name.

so 3 letter directories (/ark/, /pit/, /dyn/, etc), want apply rewritecond. doing this:

rewritecond %{request_uri}  !(ark|pit|dyn) [nc]

which works, list can long , seems easier use regex or select 3 letter directories.

any ideas?

try this:

rewritecond %{request_uri}  !([a-z]{3}) [nc]

this match folder name has lower case letters , in length of 3


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