[Gambas-user] Problem reading attributes from XML file

[Markus Schatten]

Dear friends,

I have a piece of code that was recently working, but for some reason
it stopped (using 3.5.4. currently). What I would like to do is simply
read out all attributes and their values (if they exists) from an
XmlNode. Here is what I do:

Public Sub btnLoad_Click()
  Dim xml As New XmlDocument
  Dim txt As String
  Dialog.Filter = ["*.xml", "XML Documents"]
  If Dialog.OpenFile() Then Return
  txt = File.Load(Dialog.Path)
  xml.FromString(txt)
  parse(xml.Root)
End

Public Sub parse(node As XmlNode) As Collection
  Dim child As XmlNode
  Dim ret As New Collection
  If node.Attributes Then
    For Each child In node.Attributes
      ret["@" & child.Name] = child.Value
    Next
  Endif
  Return ret
End

The XML file I'm trying to read is:

<exist:result xmlns:exist="http://exist.sourceforge.net/NS/exist">
    <exist:collection name="/db"
created="2016-02-27T19:24:55.787+01:00" owner="SYSTEM" group="dba"
permissions="rwxr-xr-x">
        <exist:collection name="apps"
created="2016-02-27T19:25:36.612+01:00" owner="SYSTEM" group="dba"
permissions="rwxr-xr-x"/>
        <exist:collection name="system"
created="2016-02-27T19:24:55.792+01:00" owner="SYSTEM" group="dba"
permissions="rwxr-xr-x"/>
    </exist:collection>
</exist:result>

What happens is that in the parse function on the first entry into the
for each loop the app crashes and the following message is displayed
in the console:

FATAL : tried to create a Gambas object with invalid type.

I've lost the few past hours searching for a solution, but the only
thing that I found is that the error is thrown in node.cpp from the
gb.xml source (e.g. here
https://github.com/justlostintime/gambas/blob/master/gb.xml/src/node.cpp).

What am I doing wrong? How should I get all attributes from an XmlNode?

All the best,

M.


--
Markus Schatten, PhD
Assistant professor and head of Artificial Intelligence Lab
University of Zagreb
Faculty of Organization and Informatics
Pavlinska 2, 42000 Varazdin, Croatia
http://www.foi.hr/nastavnici/schatten.markus/index.html
http://www.researchgate.net/profile/Markus_Schatten1
http://ai.foi.hr