 the opening brace was
encountered.</font></p>

<h3>11.2. Block Composites
<a name="11.2. Block Composites"></a>
</h3>


<p style="margin-top: 1em"><font color="#000000">A block
composite object is created a series of commands enclosed by
square brackets. The composite can be treated for most
purposes like a single closed object, with the size and
shape of its bounding box. Here is an example. The program
fragment</font></p>

<pre style="margin-left:10%; margin-top: 1em">A: [
    circle;
    line up 1 at la