On Thu, 30 Aug 2001, Andreas [iso-8859-1] Th�nnessen wrote:
> My idea was, that the validotor should allready have this
> information. The XMLContentModel provides a method whatCanGoHere()
> which looks quite like what I want. But I don't have any clue on how
> to access this...
I got this working awhile back. I don't remember much about it, but I do
still have the code lying around. The "fix" method is what you want to
look at, and I've included a couple helper methods which might be useful.
Questions welcome, answers not guaranteed.
j
/**
* Perform the acutal fixing operation. Given a tag name,
* find all elements with that name and determine what the
* DTD thinks they should have been named, then rename them that
* name.
* <br />
* Note: we could instead walk through all elements in the document
* and ask if each node is invalid, then attempt to fix it. This is
* faster, and I am assured that all invalid elements will be named
* "MsoNormal." If that situation changes, the algorithm we use should
* be made more general.
* @param nodeName The name of the elements which we believe
* are invalid.
*/
public void fix (String nodeName) throws Exception {
DocumentImpl doc = (DocumentImpl) this.parser.getDocument();
XMLValidator val = this.parser.getValidator();
Node node, parent;
NodeList nl = doc.getElementsByTagName(nodeName);
for (int i = 0; i < nl.getLength(); i++) {
node = nl.item(i);
parent = node.getParentNode();
InsertableElementsInfo info =
this.makeInfoObject (node);
int failedIndex =
val.whatCanGoHere
(this.getElementDeclIndex
(this.getElementIndex(parent.getNodeName())),
true, info);
if (failedIndex == -1)
fixNode(node, info, doc);
}
}
/**
* Given an element name, return the integer which the parser
* associates with that name.
*/
protected int getElementIndex (String elementName) {
if (elementName.equals("#text")) {
return (-1);
} else {
return(this.pool.addSymbol(elementName));
}
}
/**
* Given an element declaration integer, return the element name
* integer which the parser associates with it.
*/
protected int getElementDeclIndex (int elementIndex)
throws Exception {
if (this.parser == null) {
throw new Exception
("Null parser in FixInvalidXML: should have been set in
constructor");
}
XMLValidator val = this.parser.getValidator();
Grammar g = val.getGrammar();
if (g == null) {
throw new Exception
("FixInvalidXML failed to locate grammar object");
}
return(g.getElementDeclIndex(elementIndex, -1));
}
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