title: Parsing a mod rewrite enviorement variable
body: <p>I have a huge list of referers for specific URLs to do redirects for.  I want to do this with a Map file by having the referrer as the search and the URL+Destination as second URL.  So if the mod rewrite file looks like this
  Referer  /pages/index.html+/pages2/index2.html</p>
  
  <p>I can set Map result to a search variable that will return the URL+Destination
  RewriteRule . - [E=SEARCH:${ReferMap:%{REFERER}|NOT-FOUND}]  </p>
  
  <p>Is there a way I can parse this variable at the "+" sign and set a variable with values /pages/index.html  and /pages2/index2.html</p>