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3.2.4 DocBook
For inserting LilyPond snippets it is good to keep the conformity of our DocBook document, thus allowing us to use DocBook editors, validation etc. So we don’t use custom tags, only specify a convention based on the standard DocBook elements.
Common conventions
For inserting all type of snippets we use the mediaobject and
inlinemediaobject element, so our snippets can be formatted
inline or not inline. The snippet formatting options are always
provided in the role property of the innermost element (see in
next sections). Tags are chosen to allow DocBook editors format the
content gracefully. The DocBook files to be processed with
lilypond-book should have the extension ‘.lyxml’.
Including a LilyPond file
This is the most simple case. We must use the ‘.ly’ extension for
the included file, and insert it as a standard imageobject, with
the following structure:
<mediaobject>
<imageobject>
<imagedata fileref="music1.ly" role="printfilename" />
</imageobject>
</mediaobject>
Note that you can use mediaobject or inlinemediaobject
as the outermost element as you wish.
Including LilyPond code
Including LilyPond code is possible by using a programlisting,
where the language is set to lilypond with the following
structure:
<inlinemediaobject>
<textobject>
<programlisting language="lilypond" role="fragment verbatim staffsize=16 ragged-right relative=2">
\context Staff \with {
\remove "Time_signature_engraver"
\remove "Clef_engraver"}
{ c4( fis) }
</programlisting>
</textobject>
</inlinemediaobject>
As you can see, the outermost element is a mediaobject or
inlinemediaobject, and there is a textobject containing
the programlisting inside.
Processing the DocBook document
Running lilypond-book on our ‘.lyxml’ file will create a
valid DocBook document to be further processed with ‘.xml’
extension. If you use
dblatex, it will create a
PDF file from this document automatically. For HTML (HTML Help,
JavaHelp etc.) generation you can use the official DocBook XSL
stylesheets, however, it is possible that you have to make some
customization for it.
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