title: Rewrite Rule exlude certain pattern
body: <p>Here is my current Rule. I'm not sure how to make it work.</p>
  
  <pre><code>RewriteRule ^/c/(.*)$ http://somurl/a/c/$1 [P,QSA]
  </code></pre>
  
  <p>my regular URL pattern is
      /c/one/two?somekey=somevalue</p>
  
  <p>I need to exlude this pattern from being processed.</p>
  
  <pre><code>/c/one/two/ab-three/bc-four/cd-five?somekey=somevalue
                  OR 
  /c/one/two/bc-four/cd-five?somekey=somevalue
  </code></pre>
  
  <p>In the above patter, "bc" is consistent, this I need to check and exclude. Others may or maynot exist. </p>
  
  <p>Will adding this condition above my rule work?</p>
  
  <pre><code>RewriteCond %{REQUEST_URI} !^/one/(.*)/bc-(.*)/
  </code></pre>
  
  <p>If not can you help me out?</p>
  
  <p>Thanks!</p>