[R] XML and str

[Ashley Ford]

If I read in an .xml file eg with 
> xeg <- xmlTreeParse(system.file("exampleData", "test.xml",
package="XML"))

It appears to be OK however examining it with str() gives an apparent
error

> str(xeg,2)
List of 2
 $ doc:List of 3
  ..$ file    : list()
  .. ..- attr(*, "class")= chr [1:2] "XMLComment" "XMLNode"
  ..$ version :List of 4
  .. ..- attr(*, "class")= chr "XMLNode"
  ..$ children:Error in obj$children[[...]] : subscript out of bounds

I am unsure if this is a feature or a bug and if the latter whether it
is in XML or str, it is not causing a problem but I would like to
understand what is happening, any ideas ?

examining components eg 
> str(xeg$doc$children,2)

List of 2
 $ comment: list()
  ..- attr(*, "class")= chr [1:2] "XMLComment" "XMLNode"
etc 

is OK.

XML Version 1.4-1, 
same behaviour on Windows and Linux, R version 2.4.1 (2006-12-18)




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