Re: [docbook-apps] Implementing support for filterin/filterout in assemblies

[Bob Stayton <bobs@sagehill.net>]

Hi Peter,

I don't know of an existing implementation, but I would be willing to assist with your efforts.

Before you start, though, you might not need to use the filterin filterout elements if you just need simple conditional exclusion. Note that assembly elements like module accept the regular DocBook effectivity attributes. You can preprocess your assembly file containing those attributes using the stock profiling/profile.xsl stylesheet and command line parameters to produce a profiled assembly.as described here under the "Two-pass processing" heading.

http://www.sagehill.net/docbookxsl/AlternateText.html#ProfileFilter

Bob Stayton
Sagehill Enterprises
bobs@sagehill.net

On 3/22/2019 1:04 PM, Peter Desjardins wrote:

Hi! I need to do some conditional processing of a book that I'm
assembling from an assembly structure. A specific audience needs a
version of the book with some modules removed.

I see in https://tdg.docbook.org/tdg/5.1/ch06.html that the filterout
element is intended to do what I need. But it looks like support for
filterout hasn't been implemented yet:

https://github.com/docbook/xslt10-stylesheets/blob/master/xsl/assembly/assemble.xsl#L742

I am about to fork the repository and try hacking together some form
of support. Before I do, has anyone else done this? If possible, I'd
like to help work on something that could be contributed to the
project.

Thanks!

Peter

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