the half open interval
<code class="literal">[0,finish)</code>. The value of <code class="literal">finish</code>
must be positive.</p></dd>
<dt><span class="term"><code class="function">index start()</code></span></dt>
<dd><p>This function returns the first index represented by the range</p></dd>
<dt><span class="term"><code class="function">index finish()</code></span></dt>
<dd><p>This function returns the upper boundary value of the half-open
interval.  Note that the range does not include this value.</p>