Jacobus Reyneke schrieb am 24.03.2010 um 20:39:27 (+0200):
I can't get past the fact that sometimes I end up with attributes that
will get part of their content from other parts of the XML document.
Fine.
Can anyone please share some ideas around evaluating information for
use inside xml attributes. I know it's ugly, horrible and terrible to
escape XML an dump it inside an attribute
Should be avoided under all circumstances. No excuse :-)
but I need to reference content by id from inside attributes from time
to time.
Why don't you just use entities and entity references? Good old DTD does
the job for you:
$ cat five.xml
<!DOCTYPE root [
<!ENTITY johny "Johny">
]>
<root>
<information lookup-id="5">
&johny;
</information>
<chapter title="The life of &johny;">
Everyone knew that &johny; was a happy child
</chapter>
</root>
$ xmllint --noent five.xml
<?xml version="1.0"?>
<!DOCTYPE root [
<!ENTITY johny "Johny">
]>
<root>
<information lookup-id="5">
Johny
</information>
<chapter title="The life of Johny">
Everyone knew that Johny was a happy child
</chapter>
</root>
That way, you won't need information/@lookup-id.
If you insist on using cryptic numbers, you could pre-generate the
entities and store them in a file called five.ent which you then
reference from the DOCTYPE.
--
Michael Ludwig
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