[Classpathx-xml] Another ValidationConsumer Question...

[Jeff Rafter]

I have a lot of the functionality ported for the ValidationConsumer I have
been working on in Pascal. I am having problems though. VERY simple content
models function perfectly-- for example

<?xml version="1.0"?>
<!DOCTYPE catalog [
  <!ELEMENT catalog (CD*)>
  <!ELEMENT CD (#PCDATA)>
]>
<catalog>
   <CD>test1</CD>
   <CD>test2</CD>
</catalog>

Can be validated. However if there are multiple elements in a sequence
model, the second element (even if there are more than two) causes a
failure-- so the following document

<?xml version="1.0"?>
<!DOCTYPE catalog [
  <!ELEMENT catalog (CD, Album)>
  <!ELEMENT CD (#PCDATA)>
  <!ELEMENT Album (#PCDATA)>
]>
<catalog>
   <CD>test1</CD>
   <Album>test2</Album>
</catalog>

Raises an error: "Element Type 'Album' in element 'catalog' violates content
model (CD,Album). I have tried to trace what is happening but am continually
lost. When the test for Album occurs the current recognizer is an
EmptyRecognizer (which is created in the call to patchNext as the model is
first built). I can't find the bug... but I am assuming that the
EmptyRecognizer that is created in patchNext in the ChildrenRecognizer
constructor is the terminating model and is never intended for actual use
(except in invalid documents). So my bug must be in populate right? Is it
safe to assume that

(CD,Album)

should generate two ChildrenRecognizers in the the components array and a
third EmptyRecognizer is added as the terminating node in the call to patch
next...?

Thanks,
Jeff Rafter
Defined Systems
http://www.defined.net
XML Development and Developer Web Hosting