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It's not soo wrong ;-) All your statements are correct when using <xsl:value-of select="..."/>. And they were correct if I had used "preceding-sibling::field/@id != @id.
In the example above the node set of all id attributes of all preceding-sibling field elements are compared with the node set of the id attribute of the current node.
It obtains for the usage of not(): it's true if no value in node set 1 is equal to a value in node set 2.
While for != : it's true if one value in node set 1 is not equal to the values in node set 2.
If I'm wrong or unprecise please correct me.
Regards,
Joerg
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
Re: [xsl] Expression Logic Problem
Subject: Re: [xsl] Expression Logic Problem From: Joerg Heinicke <joerg.heinicke@xxxxxx> Date: Thu, 01 Aug 2002 02:02:46 +0200 |
1. preceding-sibling:
Instead of <xsl:if test="self::node()[1]"> use <xsl:if test="not(preceding-sibling::field/@id = @id)">
won't this return the very first field in document order?
No, it only tests whether there is not a preceding-sibling field element, which has the same @id like the current one.
You can write "not(preceding-sibling::field[@id = current()/@id])" if you want.
It is my understanding that if you have:
<a> <f id="1"/> <f id="2"/> <f id="2"/> </a>
and you happen to be on the 3rd f node you would get:
preceding-sibling::field/@id=1
and current()/@id=2
but if you use:
preceding-sibling::field[1]/@id=2
Is this wrong?
It's not soo wrong ;-) All your statements are correct when using <xsl:value-of select="..."/>. And they were correct if I had used "preceding-sibling::field/@id != @id.
In the example above the node set of all id attributes of all preceding-sibling field elements are compared with the node set of the id attribute of the current node.
It obtains for the usage of not(): it's true if no value in node set 1 is equal to a value in node set 2.
While for != : it's true if one value in node set 1 is not equal to the values in node set 2.
If I'm wrong or unprecise please correct me.
Regards,
Joerg
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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