internal" href="#search-and-replace">Search and Replace</a>
  string(<a class="reference internal" href="#find">FIND</a> &lt;string&gt; &lt;substring&gt; &lt;out-var&gt; [...])
  string(<a class="reference internal" href="#replace">REPLACE</a> &lt;match-string&gt; &lt;replace-string&gt; &lt;out-var&gt; &lt;input&gt;...)
  string(<a class="reference internal" href="#regex-match">REGEX MATCH</a> &lt;match-regex&gt; &lt;out-var&gt; &lt;input&gt;...)
  string(<a class="reference internal" href="#regex-matchall"