mod_rewrite doc rebuild

(including their regular expression counterparts), this

should never be necessary and is unsupported. A likely feature

to break in these contexts is relative substitutions.</li>

<li>The <code class="directive"><a href="../mod/core.html#if">If</a></code> blocks

follow the rules of the <em>directory</em> context.</li>

<li>By default, mod_rewrite overrides rules when <a href="../sections.html#merging">

merging sections</a> belonging to the same context. The <code class="directive"><a href="../mod/rewrite.html#rewriteoptions">RewriteOptions</a></code> directive can change this behavior,

for example using the <em>Inherit</em> setting.</li>

<li>The <code class="directive"><a href="../mod/rewrite.html#rewriteoptions">RewriteOptions</a></code> also regulates the

behavior of sections that are stated at the same nesting level of the configuration. In the

following example, by default only the RewriteRules stated in the second 

<code class="directive"><a href="../mod/core.html#if">If</a></code> block

are considered, since the first ones are overridden. Using <code class="directive"><a href="../mod/rewrite.html#rewriteoptions">RewriteOptions</a></code> Inherit forces mod_rewrite to merge the two

sections and consider both set of statements, rather than only the last one.</li>

</ul>

<div class="example"><pre class="prettyprint lang-config">&lt;If "true"&gt;

  # Without RewriteOptions Inherit, this rule is overridden by the next

  # section and no redirect will happen for URIs containing 'foo'

  RewriteRule foo http://example.com/foo [R]

</If>

<If "true">

  RewriteRule bar http://example.com/bar [R]

&lt;/If&gt;</pre>

</div>

</div>

      <p>For some hints on <a class="glossarylink" href="../glossary.html#regex" title="see glossary">regular