I finished reading through the xslt4 doc. Great stuff, and I do the
for-each-context-switch as well.
I had some preprocessors converting a <gen:context select=""> (gen
prefix pointing to a different ns) to that context-setting-only
xsl:for-each as well (with xsl prefix pointing to the xslt namespace).
Good to see the specs including some of these common adjustments... I
should look back through them. :)
On Tue, May 19, 2020 at 10:55 AM Imsieke, Gerrit, le-tex
gerrit(_dot_)imsieke(_at_)le-tex(_dot_)de
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com>
wrote:
Of course such an xsl:with instruction won't be penalized by HOAXCoQS
[1], unlike xsl:for-each, which reeks of XSLT 1 habits most of the time.
xsl:with won't get brownie points though; I'd consider it "neutral".
But read my previous messages in this thread. Instead of xsl:with I
propose to use a @context-item attribute (an @xsl:context-item attribute
on non-xsl elements). If you really need the kind of wrapper that
xsl:with provides, you can still write
<xsl:sequence context-item="$context">
<xsl:variable .../><!-- @select evaluated in the context of $context -->
<foo>...</foo><!-- any expression within is also evaluated in the
context of $context -->
<bar>...</bar>
</xsl:sequence>
but most of the time the XSLT code will become more compact because the
context can be set by an attribute on almost any element, not with an
instruction.
-- Gerrit
[1] https://github.com/sydb/HOAXCoQS
On 19.05.2020 19:14, Pieter Lamers
pieter(_dot_)lamers(_at_)benjamins(_dot_)nl wrote:
I think <xsl:with select="..."> is an elegant rewrite of for-each. It
does make me wonder whether it would earn brownie points or penalties in
Gerrit's highly opiniated book.
On 19/05/2020 18:52, Liam R. E. Quin liam(_at_)fromoldbooks(_dot_)org wrote:
On Tue, 2020-05-19 at 08:54 +0000, Pieter Masereeuw
pieter(_at_)masereeuw(_dot_)nl
Because such a for-each does not repeat, I always add a comment like
<!-- Merely sets the context, does not repeat -->.
I tend to comment these too, although not with the repeat part - be
careful, too, as in English a less-informed reader might get an
incorrect impression reinforced that for-each is a loop, rather than a
mapping operator.
Yes, an xsl:with-context-item select=.... would be clearer. Wkether
it's worth increasing the size of the language for it is a judgment
call that's a little harder, i think.
Best,
Liam
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