<!doctype debiandoc system>to indicate that the document is a Debiandoc-SGML file.
The document should start with the <book> tag and end with
</book>.
This should be followed by the <title>, one or more
<author>-<email> pairs, and optionally a
<version>. Each of these is a piece of marked-up inline
text - see Marked-up inline text and character style markup, chapter 4. The <version> may also
contain <date> which stands for the date at the time the
document is formatted.
Then may come an <abstract> and a <copyright> notice and a
<toc> marker.
The <abstract> contains a single paragraph.
The <copyright> notice contains a copyright summary (this
is used, for example, at the bottom of every HTML page) followed by
one or more paragraphs, the first of which must be indicated by a
<p> tag to distinguish it from the summary.
The <toc> marker specifies that a table of contents is to be
produced. The <toc> doesn't contain anything in the SGML
source - its contents are generated by the processing systems. The
<toc> can have an attribute saying how detailed it should be;
for example, <toc sect1> says that subsections should be
included, whereas <toc chapt> says that only chapters should be
included. The values allowed are chapt, sect, sect1
and sect2.
Following these parts comes the body of the document - one or more
chapters <chapt>.
It is not necessary to mark the end of the <title>,
<author>s, <version>, <abstract> and
<copyright> elements - they are implicitly ended by the
start of the next element.