&lt;!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"&gt;
&lt;para&gt;
The output from the date command,
&lt;computeroutput&gt;Sun  Nov 16, 1997  21:03:29&lt;/computeroutput&gt;,
uses fixed-width fields so that it can easily be parsed.
&lt;/para&gt;