Subject: Re: [xsl] deep copy without attributes From: Andrew Welch <andrew.j.welch@xxxxxxxxx> Date: Mon, 20 May 2013 16:35:16 +0100 |
> Well I'm not going to get hung up on that semantic - after all copy > doesn't copy and as for copy of - well what does that mean. I agree it's not easy - 'what is the difference between xsl:copy and xsl:copy-of?' is an interview question I use. Once you can visualise the input xml as a tree of nodes in your mind it's becomes straightforward, especially with attributes and their values as a single node (you can't shallow copy an attribute and change its value). A shallow copy (xsl:copy) copies a single node to the result (and just that node) while a deep copy (xsl:copy-of) copies the whole subtree. >> Instead you have to shallow copy a node at a time, and not copy the >> attribute nodes, eg use an identity template with a no-op for >> attribute: >> > > and that is what is cumbersome especially if you put yourself in the > shoes of what a good friend of mine calls an occasional dabbler in the > language. Lots of xslt is non-intuitive, but that doesn't mean it's cumbersome... try doing the same task in any other language. -- Andrew Welch http://andrewjwelch.com
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