<para>
The non-standard option letter <literal>D</literal> (dynamic) allows
to use the variables $host, $origin (the IP address the request came from),
- $path and $url. The will be replaced with the value they refer to before
+ $path and $url. They will be replaced with the value they refer to before
the filter is executed.
</para>
<para>
- Note that '$' is a bad choice as delimiter for dynamic filters as you
+ Note that '$' is a bad choice for a delimiter in a dynamic filter as you
might end up with unintended variables if you use a variable name
directly after the delimiter. Variables will be resolved without
escaping anything, therefore you also have to be careful not to chose
<para>
The non-standard option letter <literal>T</literal> (trivial) prevents
- parsing for backreferences in the substitute. Use if you want to include
+ parsing for backreferences in the substitute. Use it if you want to include
text like '$&' in your substitute without quoting.
</para>