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<html><head><title>XLISP *obarray*</title>
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</head>
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<hr>
<h1>*obarray*</h1>
<hr>
<p><table cellpadding="0" cellspacing="0" style="margin-left:10px"><tbody>
<tr valign="top">
<td><nobr>Type:</nobr></td>
<td><nobr> - </nobr></td>
<td width="100%"><nobr>system variable</nobr></td>
</tr>
<tr valign="top">
<td><nobr>Source:</nobr></td>
<td><nobr> - </nobr></td>
<td width="100%"><nobr>xlsym.c</nobr></td>
</tr>
</tbody></table></p>
<h2>Syntax</h2>
<dl>
<dt> *obarray*</dt>
</dl>
<h2>Description</h2>
<p>The *obarray* system variable contains the system symbol table.
This symbol table is an XLISP array that is constructed out of lists.</p>
<h2>Examples</h2>
<pre class="example">
(defun lookin (sym) <font color="#008844">; create a function to</font>
(aref *obarray* <font color="#008844">; look inside *OBARRAY*</font>
(hash sym (length *obarray*)))) <font color="#008844">; and look for a specific</font>
<font color="#008844">; symbol - returns a list</font>
(lookin "CAR") <font color="#008844">; returns (TEST PEEK CAR)</font>
(lookin "car") <font color="#008844">; returns NIL</font>
</pre>
<p><b>Note:</b> When looking into *obarray* or
<a href="intern.htm">intern</a>ing symbols, remember that
"car" and "CAR" written as strings [with quotation marks
in front and behind] are two different symbols in *obarray*. Remember also
that normal symbols created by XLISP are upper case names. So, if you type
in 'car as a normal symbol [with a single quote in front of it], it will be
the symbol CAR after this normal upper-casing operation.</p>
<p>See the
<a href="../manual/xlisp-man-011.htm#obarray">*obarray*</a>
system variable in the <nobr>XLISP 2.0</nobr> manual.</p>
<p><nobr> <a href="#top">Back to Top</nobr></a></p>
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