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https://issues.apache.org/jira/browse/XALANJ-2379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12489468
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Joe commented on XALANJ-2379:
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After reading part of the X-Path specification and looking at the output from
Xalan-J and MS XML, I see that you are correct. This is the behavior it should
be exibiting. But, if this is the case, then why does this work:
<xsl:variable name="testcase1" select=".=''"/>
Logically looking at this expression, I would think that it grabs the content
of the current node, and converts it to a string. But, since there is no
content within the tags, it should always return false (based on the
explanation you just gave me.) Yet, using either Xalan-J or MS XML, it will
return true if the node is empty.
My thought is, shouldn't "text()" do the same thing? If not, then I feel this
is an inconsistency in the X-Path specification itself.
By the way...have you ever noticed how many run-on sentences the X-Path
specification contains? It would make an English major cry...lol.
> Empty node text comparisons failing
> -----------------------------------
>
> Key: XALANJ-2379
> URL: https://issues.apache.org/jira/browse/XALANJ-2379
> Project: XalanJ2
> Issue Type: Bug
> Affects Versions: 2.7
> Environment: Windows XP SP2, Eclipse 3.2.2 (build M20070212-1330)
> Reporter: Joe
> Priority: Critical
> Attachments: test.xml, test.xsl, test_output.xml
>
>
> When a text comparison on an empty node is performed, it never returns true.
> For example, if I were to use this variable:
> <xsl:variable name="testcase1" select="text()=''"/>
> this will always return false.
> Yet, if I do:
> <xsl:variable name="testcase1" select="string-length(text())=0"/>
> This returns the correct result.
> I will attach a test case to this bug report.
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