.
(All these filename extension comparisons are case-insensitive.)

<p>
Once defined, a symbol can be used in place of any number.
</p></ul>
<b>Preprocessor Macros and Conditionals</b>
<ul>
PilRC includes a rudimentary C-style preprocessor that can handle object-like
macros and simple conditionals.  The following are accepted:
<p></p><ul><table>
 <tbody><tr><td><tt class="syntax">#define <var>&lt;Symbol.i&gt;</var></tt></td></tr><tr>
 </tr><tr><td><tt class="syntax">#define <var>&lt;Symbol.i&gt;</var> <var>