title: how to use "AND", "OR" for RewriteCond on Apache?
body: <p>Is this how to use AND, OR for <code>RewriteCond</code> on Apache?</p>
  
  <pre><code>rewritecond A [or]
  rewritecond B
  rewritecond C [or]
  rewritecond D
  RewriteRule ... something
  </code></pre>
  
  <p>becomes <code>if ( (A or B) and (C or D) ) rewrite_it</code>.</p>
  
  <p>So it seems like "OR" is higher precedence than "AND"?  Is there a way to easily tell, like in the  <code>(A or B) and (C or D)</code> syntax?</p>