# 3 User's Guide DTDs

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3.1 The part DTD

The part DTD is intended for a "normal" document, like the User's Guide or Release Notes. First are some paragraphs introducing the main contents. After that follows chapters, written in separate files with the chapter DTD.

Example:

    <?xml version="1.0" encoding="latin1" ?>
    <!DOCTYPE part SYSTEM "part.dtd">
    <part>
      <header>
        <title>The chapter title</title>
        <prepared>The author</prepared>
        <docno/>
        <date/>
        <rev/>
      </header>

      <description>
        <p>Some text..</p>
      </description>

      <include file="file1"></include>
      <include file="file2"></include>
    </part>

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3.2 <part>

The top level tag of a part DTD.

Contains a <header>, an optional <description>, followed by one or more <include>.

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3.3 <description>

The introduction after the title and before the bulk of included chapters/manual pages.

Contains any combination and any number of block tags except <image> and <table>.

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3.4 <include>

An empty tag. The attribute file specifies a file to include. The .xml file extension should be omitted.

Example:

    <include file="notes"></include>

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3.5 The chapter DTD

The chapter DTD is intended for a chapter in a User's Guide or similar with text divided into sections, which can be nested.

Example:

    <?xml version="1.0" encoding="latin1" ?>
    <!DOCTYPE chapter SYSTEM "chapter.dtd">
    <chapter>
      <header>
        <title>Title on first level</title>
        <prepared/>
        <docno/>
        <date/>
        <rev/>
      </header>

      <p>Introduction...</p>

      <section>
        <title>Title on second level</title>

        <p>First paragraph.</p>

        <p>Second paragraph etc.</p>

        <section>
          <title>Title on third level</title>

          <p>...</p>
        </section>
      </section>

      ...
    </chapter>

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3.6 <chapter>

The top level tag of a chapter DTD.

Contains a <header>, an optional introduction consisting of any combination of block tags, followed by one or more <section>.

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3.7 <section>

Subdivision of a chapter.

Contains an optional <marker>, a <title>, followed by any combination and any number of block tags and <section ghlink="maint/lib/erl_docgen/doc/src/user_guide_dtds.xml#L172">.

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3.8 <title>

Section title, contains plain text.