ode>from</code> or <code>to</code> are negative they are taken as relative to the end, with a minimum of 0. (Note: a negative length is <b>not</b> taken as end relative, use '..' for this situation)</p>

<p>The subsequence is limited to the range of the string. Indexes out of range will not throw an exception.</p>

<p>If from is omitted, the subsequence will start at the beginning. If <code>to</code> or <code>length</code> are ommitted, the subsequence will extend to the end.</p>

<p>For example:</p>
<pre>
