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Re: Parser for DTDs

• From: francis <francis@r...>
• To: Matt Mower <m.mower@u...>
• Date: Tue, 21 Apr 1998 17:00:04 +0100

Hi,


Matt Mower wrote:
> 
> Hi.
> 
> I am looking for a java parser that when fed a DTD returns a model
> representing all the valid documents that can be expressed using that
> DTD, i.e. for any given element type I need to be able to determine what
> are valid sub-elements/attributes/content. One additional constraint is
> that I need to parse the DTD outside of the context of an XML document.
> 
...

I can recommend Aelfred from microstar.com - it gives your program
callbacks which get called for DTD events like new element and tag
definitions as well as the expected XML events. There is a nice simple
DtdDemo.java program which you can hack to slap things into a Swing
JTree. 

Aelfred parses the DTD from the XML document however - if you need to
parse the DTD directly then the IBM parser certainly mentions this
feature in its documentation, the Microsoft one also mentions it as
available via a slightly non-recommended direct access to the the parser
object. I haven't used either yet...

http://www.alphaWorks.ibm.com/formula/
http://www.microsoft.com/workshop/author/xml/parser/
http://www.microstar.com/xml/

Hmmm - just cut and pasted IBM's command line DTD demo from the
codumentation into a DOS box

	jre -cp "xml4j.jar" GeneratingSample personal.dtd

and it worked straight off - nice...


Francis.

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• References:
  • Parser for DTDs
    • From: m.mower@u... (Matt Mower)

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