Re: XProc 1.0 to 3.0 migration

As far as I know, no one has yet taken on the task of writing such an XSLT.

One problem that I see is how to leave multiline XPath expressions 
intact, for example here:

https://github.com/transpect/docx2hub/blob/master/xpl/mathtype2mml.xpl#L144

In the *.xpl files of a typical transpect project, I found 101 multiline 
select or match attributes. Most of them are in libraries though, so 
they only need to be migrated once, for many projects.

I thought about patching xerces so that it optionally doesn't normalize 
whitespace in attributes.

But it might be useful to parse the XPath expressions anyway. For 
example, if the migration stylesheet tries to convert parameter ports 
into parameter options, it might need to change expressions that refer 
to /c:param-set documents, too. And if the XPath expressions are parsed 
(including those in inline XSLT), they can be nicely indented on output.

Anyway, I hope that if someone is able to report first useful results of 
their XProc migration XSLT, they will share the repo location with this 
list so that we can improve it collectively.

Gerrit

On 23.05.2020 11:36, Martin Honnen wrote:
> Am 22.05.2020 um 20:51 schrieb Piez, Wendell A. (Fed):
>> XProctors:
> 
> 
>>
>> Having said the more important may I sneak in a question? When (oh 
>> happy day) I migrate to XProc 3.0, what happens to my library of XProc 
>> 1.0? Is there an XSLT I could run to update my old pipeline files, or 
>> other obvious migration pathway? I looked in the spec for hints on 
>> backward compatibility and nothing jumped out.
> 
> Norm was asked about this in his talk at XmlPrague this year I think and
> in
> https://youtu.be/Q42bhIbSYLk?list=PLQpqh98e9RgURPOd2Y6Md-WZ1_MpAqFK8&t=1378
> indicates that they hope to have a stylesheet that performs the
> transformation from XProc 1 to XProc 3 but probably the result needs
> some correction.
> 
> That's all I know about this.
>

Received on Sunday, 24 May 2020 06:29:15 UTC