[groovy-user] GPath - find all elements with a given attribute

[John Moore]

I'm tring to use XmlSlurper to process some XML, replacing all 'id'
attributes with a prefixed value. I must have misunderstood something about
GPath, because I'm ending up processing more elements than I want. Basically
my XML is like this:



My code is below. I am HOPING to process all nodes, at any level, contained
within the <form> element (so, abc, def, etc). What I'm finding, though, is
that the <form> element itself is being processed as well. How can I avoid
this?



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[Paul King]

Your code didn't show up on the mailing list but is on nabble.
Perhaps next time a direct email to the list might be better - don't
know why it had problems though. Anyway, try:

div.form.'*'.'**'

Cheers, Paul.

[John Moore]

Great, that worked, thanks. Could you please explain why it worked, and why
the previous version didn't? I'm keen to understand this area a little
better.

I've been having problems with the Groovy mailing list for some time, don't
know why. I think I may have to unsubscribe and resubscribe under a
different account.

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[Tim Yates]

The depth first iterator also iterates over the node itself (as the first element of the iteration)

Using Paul's solution, you only perform a depth first iteration over the children of this node.  It is the same as doing:

div.form.children().'**'.grep { println it ; it.@id.text()}

So does not pass the form itself

Hope this helps!

Tim

[John Moore]

Thanks for the explanation. I actually tried out using div.form.children()...
yesterday, figuring that that must be what the issue was, but got an error
suggesting it wasn't valid. I just tried again now and it's fine, so I
reckon there must have been some other syntax error which threw me off the
scent.

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