Re: [xsl] Re: Re: Sorting date in xsl

Subject: Re: [xsl] Re: Re: Sorting date in xsl
From: "Albert Tsun" <albert.tsun@xxxxxxxxxxxx>
Date: Mon, 11 Jun 2001 15:31:30 +0800

Hi All,

I am new to XSLT and I want to ask if those generic xslt stylesheets compatible
to all
XSLT Processors.

I am now using Xalan and if yes, I would like to have one and try.

Many Thanks in advance

Dimitre Novatchev <dnovatchev@xxxxxxxxx> on 11/06/2001 03:18:00 PM

Please respond to xsl-list@xxxxxxxxxxxxxxxxxxxxxx

To:   francis@xxxxxxxxxxx
cc:   xsl-list@xxxxxxxxxxxxxxxxxxxxxx (bcc: Albert Tsun/Excel)

Subject:  [xsl] Re: Re: Sorting date in xsl

Francis Norton wrote:

> Dimitre Novatchev wrote:
> >
> >
> > A third and the most natural approach is to use a generic template for a
> > sort operation. You'll just pass to this generic template a template
> > implementing the "greater than" relation for your format of dates.
> >
> I'm not sure if it's an official generic template, but I have a generic
> sort function (in fact two of them, but only one works correctly) at
> Use sortcall.xslt on sort.xml, selecting the simple sort, to demonstrate
> it.
> The point is that you provide your own type-specific comparison template
> and this gets called from your included sort template. There's a
> standard way of calling the sort templates so that you can parameterise
> the choice of method. It's quite a neat solution really.

Hi Francis,

Yes, sortcall.xslt (actually in combination with simplesort.xslt and
implements a generic sorting algorithm.

There are important differences between this implementation and the one based on
template references:

  - Double indirection: a template with fixed name ("before") is called, which
    based on a parameter calls one of a set of predefined templates. This is
    through a potentially long xsl:choose.
    When a template reference is used there is no double indirection -- it is
    selected by the XSLT processor based on a uniquely typed node specified in
    the "select" attribute of an xsl:apply-templates within the generic sort
    No xsl:choose is used.

  - The template to be used for the first indirection (call) must have a unique
    name. This is not convenient and may cause potential naming conflicts,
    especially when templates using the generic sort templates are imported.
    Actually, it will not be possible to use in case when two different
    stylesheets are imported containing templates that each call the sorting
    template -- they will both have a "before" template. This means that the one
    with the highest import precedence will always be used.

    When using template references there is no such problem -- the templates
    implement the "greater-than" relation are not called by name, they are
    guaranteed to be matching a uniquely typed node and therefore there's
    never more than one template for the XSLT processor to select when resolving

    xsl:apply-templates from the generic (sort) template.

Thank you for your interest in the implementation of generic templates.
I will be glad to answer any questions regarding this implementation. I will
send to
anyone interested the code of some useful generic templates: generic min(),
max(), generic binSearch() and generic sort().

Dimitre Novatchev.

Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail - only $35
a year!

 XSL-List info and archive:

 XSL-List info and archive:

Current Thread