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Re: [xsl] Rule of thumb: Are XPath 2.0 or XSLT 2.0 constructs faster?

2012-02-09 06:52:07
I like pure XPath solutions because they are less verbose, but I find
"full" XSLT less restricting and easier to debug (especially when I
want to check what variable holds what value).

Since about 6 months oXygen has implemented stepping through an XPath
expression (not sure about setting breakpoints). Thus there should be
no difference in debugging XPath code and XSLT code with oXygen.

Cheers,
Dimitre Novatchev.

On Wed, Feb 8, 2012 at 11:59 PM, TW <zupftom(_at_)googlemail(_dot_)com> wrote:
Hi all,

in XSLT 2.0, I quite often find that I can do things using either
XPath or XSLT constructs.  For example, in a step-by-step calculation
I define a number of variables, either with <xsl:variable> or XPath
"for $x in y" expressions.  I can use <xsl:choose> or XPath's
if/then/else (single or chained).  Sometimes a goal can be achieved
with either <xsl:for-each>/<xsl:sort> and more complex sort criteria
and return values, or max()/min() and some conditional treatment.

I like pure XPath solutions because they are less verbose, but I find
"full" XSLT less restricting and easier to debug (especially when I
want to check what variable holds what value).  But how does it look
performance-wise?  Is there a valid rule of thumb what constructs are
cheaper in general?  Do XSLT constructs maybe have an overhead that
XPath ones don't?

Thomas W.

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-- 
Cheers,
Dimitre Novatchev
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