Support #1346
closed
Assignment to variable makes a difference. Why?
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Description
SourceForge user: ormek
Hi Everybody,
in the attached stylesheet, I do an xsl:for-each on a
set of strings. Success in accessing the context node
then seems to depend on wether I assign its string
value to a variable first (lines 42-45):
42:
<xsl:value-of select="."/>43:
<xsl:value-of select ="count($TopicSelections[@value=string(.)])"/></td>
44: <xsl:variable name="v" select="string(.)"/>
45:
<xsl:value-of select ="count($TopicSelections[@value=$v])"/></td>
The output of lines 43 and 45 should not differ, but
they do. Only line 45 works.
I attached the stylesheet, an input file, and my result
file.
Please enlighten me about the conversion of atomic
values, sequences and trees that should cause this
behaviour if it is no bug.
BTW: I use saxonB.8-7
Best Wishes,
Oliver
Files
Updated by Anonymous almost 18 years ago
SourceForge user: ormek
Logged In: YES
user_id=203018
I also tried with 8.7.1j but to no avail.
Updated by Anonymous almost 18 years ago
SourceForge user: mhkay
Logged In: YES
user_id=251681
A predicate changes the context node: so within the square
brackets "." (and therefore string(.)) gives a different
result from the same expression evaluated outside the square
brackets. The expression $TopicSelections[@value=string(.)]
selects those items in $TopicSelections whose string-value
is equal to their @value attribute (for example <e
value="3">3).
If you don't want to use a variable, you can always use
current().
Michael Kay
Updated by Anonymous almost 18 years ago
SourceForge user: ormek
Logged In: YES
user_id=203018
Thank you for that perfect answer. Thank you also for the
pointer to current(). I ran into the problem of using an
expression as above within a sort statement and that
couldn't be solved with a variable.
Thank you very much for your work, your helpfullness and
your help.
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