parser help 2003-05-27 - By Anthony Rabaa
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Utsav Boobna wrote:<br>
<blockquote type="cite"
cite="midPine.LNX.4.33.0305271442001.19983-100000@(protected)">
<pre wrap="">Hi,
Given a DOM tree I would like to check the validity of the
subtree of a given node, by the parser. One way which I can think of is to
write the XML document corresponding to it and then parse it. will it
work? is there some better and effective way of doing it ?
also, at some stage if it is found that a particular subtree is invalid then,
I would like to substitute its children by few different elements and then
repeatedly check its validation for different combination of children, so
I think writing an XML document each time wont be effective.
will some modification in the parser be helpful?
Utsav
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</pre>
</blockquote>
My suggestion would be to serialize the node into a SAXParser object,
inserting its respective DOCTYPE statement before it. Have your object
doing the work implement org.xml.sax.ErrorHandler and you will catch
all the errors of the child node as the parser validates the contents
against the DTD. This method would allow you to catch more than one
error, you don't have to be creating/deleting files and you can stick
to just manipulating the one DOM.<br>
<div class="moz-signature">-- <br>
<b>Anthony Rabaa</b><br>
<font size="-1">Software Developer & Network
Administrator<br>
AMCon Research Inc.<br>
Ottawa, Ontario, Canada<br>
<a href="http://www.amconresearch.net">http://www
.amconresearch.net</a></font><br>
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