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Dr. Dread
Professional Member
Joined: 03 Aug 2001
Posts: 1065
Location: Copenhagen, Denmark
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 Posted: Sun Mar 14, 2010 7:47 pm Post subject: XMLDOC bug? |
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Hi there!
I'm just checking out the XML capabilities of VDS6. I think there might be a bug in the SEEK function.
Consider this XML file:
| Code: | <?xml version="1.0" encoding="ISO-8859-1" ?>
<hom>
<node1 attrib="test">
<subnode>contents1</subnode>
</node1>
</hom>
<hom>
<node2 attrib="testx">
<subnode>contents2x</subnode>
</node2>
</hom>
<hom>
<node2 attrib="test">
<subnode>contents2</subnode>
</node2>
</hom>
<hom>
<node3 attrib="test">
<subnode>contents3</subnode>
</node3>
</hom> |
..and run it through this script:
| Code: | XMLDOC create,1
XMLDOC loadfile,1,debug.xml
if @XMLDOC(SEEK,1,/hom/node2["@attrib"=test])
info @XMLDOC(VALUE,1,subnode)
end |
In my view the script should look for the node named node2 and then return the contents of its subnode -
result should be contents2 but it is contents1
The function seems to match the first node having the right attribute even if the node name does not match the seek
criteria.
Am I getting something wrong here?
Greetz
Dread
_________________
~~ Alcohol and calculus don't mix... Don't drink and derive! ~~
String.DLL * advanced string processing |
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Aslan
Valued Contributor
Joined: 31 May 2001
Posts: 589
Location: Memphis, TN USA
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| Posted: Tue Mar 16, 2010 3:06 am Post subject: |
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I don't think VDS understands ["@attrib"=test]
I wonder if it would work with
| Code: | if @XMLDOC(SEEK,1,/hom/node2 attrib="test")
info @XMLDOC(VALUE,1,subnode)
end |
-OR-
| Code: | if @XMLDOC(SEEK,1,/hom/"node2 attrib=test")
info @XMLDOC(VALUE,1,subnode)
end |
Or VDS only understands very basic XML
e.g
| Code: | <note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note> |
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Dr. Dread
Professional Member
Joined: 03 Aug 2001
Posts: 1065
Location: Copenhagen, Denmark
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| Posted: Tue Mar 16, 2010 12:04 pm Post subject: |
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["@attrib"=test] is actually documented in the help file, and it does in fact work if only one XML entity has
the attribute being searched.
The problem arises when two or more nodes have the same attribute. Then VDS will pick the first node having the
correct attribute even though the actual node name does not match at all...
Greetz
Dread
_________________
~~ Alcohol and calculus don't mix... Don't drink and derive! ~~
String.DLL * advanced string processing |
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Aslan
Valued Contributor
Joined: 31 May 2001
Posts: 589
Location: Memphis, TN USA
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| Posted: Wed Mar 17, 2010 11:39 pm Post subject: |
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I tried even using none similar words for the attribute values but it didn't seem to make a difference.
It seems to only work if the attribute is numeric.
| Code: | <hom>
<node1 attrib="1">
<subnode>contents1</subnode>
</node1>
<node2 attrib="1">
<subnode>contents2x</subnode>
</node2>
<node2 attrib="2">
<subnode>contents2</subnode>
</node2>
<node3 attrib="1">
<subnode>contents3</subnode>
</node3>
</hom> |
| Code: | XMLDOC create,1
XMLDOC loadfile,1,debug.xml
if @XMLDOC(SEEK,1,/hom/node2["@attrib=2"])
info @XMLDOC(VALUE,1,subnode)
end
exit |
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Aslan
Valued Contributor
Joined: 31 May 2001
Posts: 589
Location: Memphis, TN USA
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| Posted: Thu Mar 18, 2010 12:07 am Post subject: |
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Ignore my last post.
To further confuse things; this works
Debug.xml | Code: | <Root>
<Node1 ID="TestA">
<SubNode1>Value11</SubNode1>
<SubNode2>Value12</SubNode2>
<SubNode3>Value13</SubNode3>
</Node1>
<Node2 ID="TestA">
<SubNode1>Value21</SubNode1>
<SubNode2>Value22</SubNode2>
<SubNode3>Value23</SubNode3>
</Node2>
<Node2 ID="TestB">
<SubNode1>Value31</SubNode1>
<SubNode2>Value32</SubNode2>
<SubNode3>Value33</SubNode3>
</Node2>
<Node ID="TestA">
<SubNode1>Value41</SubNode1>
<SubNode2>Value42</SubNode2>
<SubNode3>Value43</SubNode3>
</Node>
</Root> |
| Code: | XMLDOC create,1
XMLDOC loadfile,1,debug.xml
if @XMLDOC(SEEK,1,/root/node2["@ID=TestB"])
info @XMLDOC(VALUE,1,subnode3)
end |
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Dr. Dread
Professional Member
Joined: 03 Aug 2001
Posts: 1065
Location: Copenhagen, Denmark
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| Posted: Fri Mar 19, 2010 9:00 am Post subject: |
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Yeah, the behaviour is erratic.
If you do this
| Code: | if @XMLDOC(SEEK,1,/root/node["@ID=TestB"])
info @XMLDOC(VALUE,1,subnode3)
end |
VDS will return the same string - and it shouldn't
Well, I guess I have to look to Delphi - a shame when VDS has a nice XML feature 
Greetz
Dread
_________________
~~ Alcohol and calculus don't mix... Don't drink and derive! ~~
String.DLL * advanced string processing |
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