Re: [xml-dev] element census tool?

[Bjoern Hoehrmann <derhoermi@gmx.net>]

* Simon St.Laurent wrote:
>I know I could write this myself, but suspect someone else has already 
>done a better job of it - and I just don't know the right Google 
>keywords to summon it.
>
>I'm looking for a tool that I can feed an XML document, and it will tell 
>me which element names were used in the document.
>
>Attributes used on those elements would be a bonus, as would a frequency 
>count for usage, but mostly I'm just trying to survey a collection of 
>(DocBook) documents quickly.

As this is turning into a rosetta code excercise, let me throw in C#:

  var elems = XDocument.Load(path).Root.DescendantsAndSelf();
  var attrs = elems.Attributes()
    .GroupBy(x => new { Attr = x.Name, Elem = x.Parent.Name });

  foreach (var elem in elems.GroupBy(x => x.Name))
    Console.WriteLine("{0} {1}", elem.Count(), elem.Key);

  Console.WriteLine();

  foreach (var attr in attrs)
    Console.WriteLine("{0} {1}/@{2}", attr.Count(),
      attr.Key.Elem, attr.Key.Attr);

Though it would seem the GNU-ish way to solve this would be having a
tool that prints out all the element names and attribute/element paths
and then use, say, `sort | uniq -c` on it.
-- 
Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de
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