Subject: Re: [xsl] counting characters in an XML document From: David Carlisle <davidc@xxxxxxxxx> Date: Mon, 5 Nov 2001 09:29:53 GMT |
> That solution confuses me - I would have expected descendants to work, > rather than child::*[1]. > <xsl:value-of select="string-length(descendants)"/> actually you don't nnned child either, you could just have gone <xsl:value-of select="string-length(/)"/> The string-value of an element (or root node) is the concatenation of the string value of all its child nodes that's why / or child:*[1] work. "string-length(descendants)" also works, but goes the long way round. first you select a node set which consistes of every element node in the document. then you apply string-length to that node set. Functions expectiong a string, if given a node set, take the first node in document order in the node set, discard every other node, then take the strng value of the selected node. Since the node set selected will include the top level document element, the above will give the string value of the document element, and all the descendant nodes will be discarded. But as described above the string value of the document element is the concatenation of the characters in its descendants... David _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp or alternatively call Star Internet for details on the Virus Scanning Service. XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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