Just to clarify: The namespaced stylesheets and the original
non-namespaced stylesheets are nearly identical, because one is
generated from the other. The principal difference is that the element
names in the namespaced stylesheets have the DocBook namespace prefix.
Both sets of stylesheets have templates matching on all element names
from both DocBook 4 and 5, so each will work with either DocBook
version, if the document namespace is adjusted in preprocessing. This
works because XSL is template driven, and having templates that are not
called is perfectly common. It also works because the content models
between DocBook 4 and 5 are sufficiently compatible.
So adapting an existing customization layer is mostly done by adding the
namespace prefix to element names and importing the ns stylesheet. This
is described in:
http://www.sagehill.net/docbookxsl/CustomDb5Xsl.html
Bob Stayton
Sagehill Enterprises
[email protected]
On 2/17/2015 3:33 AM, Jirka Kosek wrote:
On 17.2.2015 10:27, Thomas Schraitle wrote:
(Of course, I could feed my new DocBook 5 sources into my existing XSL
customizations. This "works", but it takes too much time because of the
internal convertion of DocBook 5 to DocBook 4.)
And what about converting V4 documents to V5 (for example with different
filename) prior running DocBook XSL stylesheets? You automate this using
make or ant, only changed files will be converted again and you will
gain significant speed up.
However, we have some some hefty DocBook XSL customizations; a
"DocBook XSL Transition Guide" would be helpful. :)
How would you deal with such migration of "old" DocBook 4 XSL
customization layers?
Adding namespace prefix in front of element names inside XPath
expressions should be enough.
Jirka
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