Maybe do it in Python with the "lxml" module?
On Tue, 3 Mar 2020, Kerry, Richard richard(_dot_)kerry(_at_)atos(_dot_)net
wrote:
Ok,
Thanks all for the explanations. I'll look at the alternatives.
If this was C++, which is what I use most of the time (XSL is infrequent, just
when I want to manipulate some XML) I would
use some kind of polymorphism to achieve this. I'd define a couple of one-line
functions with the different variables, or
calls, and pass the appropriate one to the outer function so they could be run
on its results (somewhat garbled,
abbreviated explanation, sorry). I'm not aware of anything in XSL that looks
like polymorphism, but I would be interested
to know if there was a construct that might be similar, or usable for cases
like this one.
Granted I can't construct variable names dynamically, but I can have a number
of variables existing simultaneously and
select one and pass it around by address if I need to. I don't see an
analogous construct in XSL, except to use
choose/when to select a line of code based on an actual variable.
I could send my examples if that would be best, but I think that would provide
a lot of unnecessary code just to show a
small bit of context.
What I am actually trying to do is to get a number of XML files processed. The
files are in similar folders, called
'input' and 'output'. The files' names follow a couple of name patterns,
acq_(\d{4}) and out_(\d{4}). There is identical
code to scan through the folders and identify the files I want to process (and
extract the numbers from the filenames).
They are then passed to apply-templates with the different modes as mentioned.
So the file scanning, while not especially complicated, is not entirely trivial
and I'd like to have it written just once.
And then, because the contents of the files differs in structure, they are
handled by different templates, with different
modes.
Blue line
Richard Kerry
BNCS Engineer, SI SOL Telco & Media Vertical Practice
M: +44 (0)7812 325518
2nd Floor, MidCity Place, 71 High Holborn, London, WC1V 6EA
richard(_dot_)kerry(_at_)atos(_dot_)net
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___________________________________________________________________________________________________________________________
From: Michael Kay mike(_at_)saxonica(_dot_)com
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com>
Sent: 03 March 2020 11:48
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
<xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com>
Subject: Re: [xsl] How do I pass the mode as a string?
Section §6.6.2 in the XSLT 3.0 spec states:
The xsl:apply-templates element also has an optional mode attribute. The value of this
attribute must be one of the
following:
* an EQName, which is expanded as described in 5.1.1 Qualified Names to
define the name of a mode
* the token #default, to indicate that the default mode for the stylesheet
module is to be used
* the token #unnamed, to indicate that the unnamed mode is to be used
* the token #current, to indicate that the current mode is to be used
It does not allow an expression, and it does not allow an attribute value
template.
It's similar to trying to refer to a variable by name: you can't construct
variable names dynamically either, however much
you feel it would make your life easier.
You haven't described your problem so it's difficult to suggest a different
approach to solving it. Higher-order functions
might be the right way.
Michael Kay
Saxonica
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