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Re: [xsl] C14N and XSLT

2018-04-10 09:04:33


On 10 Apr 2018, at 14:12, Geert Bormans 
geert(_at_)gbormans(_dot_)telenet(_dot_)be 
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:

All,

I am evaluating whether I should make C14N part of an XSLT chain or have 
something like XMLStarlet at the end of the process.

I believe that by the book, I can not guarantee an XML serialisation from an 
XSLT renders a canonical XML, can I?

Correct, there is no such guarantee. Indeed, I think some of the provisions in 
the XSLT/XQuery serialization spec actually guarantee that the output will NOT 
be in C14N form.

Unfortunately the Oracle/JDK canonicalizer appears to operate in pull mode, 
which makes it difficult to add it to the end of a push-mode JAXP pipeline. But 
you could try sending the XSLT output to a PipedOutputStream, and reading it as 
a PipedInputStream using the Canonicalizer running in a separate thread.

Michael Kay
Saxonica


To me things like <foo></foo> instead of <foo/> are impossible to force, or 
did I missed something?
(I am aware of some undocumented tricks that help me force this in some 
processors, but that is no guarantee for a long lasting solution)

I am leaning towards using a C14N dedicated tooling, but the files are big 
and XSLT streaming would help

Any thoughts?

Thanks,

Geert
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