Selective parsing of elements

David Brownell db at Eng.Sun.COM
Fri Oct 23 18:40:47 BST 1998

Nicolas MONNET wrote:
> I want to parse select XML tags, and pass the remaining ones 'as-is'. Is
> there a way, or is there a certain parser, that will allow me to
> 'register', for example, the tags I'm interested in, and pass the rest as
> PCDATA? Is there anything wrong with this approach?

Most Java parsers offer some such functionality, though details vary.

For example, you could use a SAX parser and ignore DocumentHandler.element
callbacks for the elements you're not concerned with.

Sun's package, as well as others, support this.  I think it's more typical
that folk want to add special processing for specific tags, rather than
ignore the others.  In Sun's package you can define particular "XML Beans"
to represent those tags, and customize processing in that way.  To do that,
you "register" element classes, which can have your custom code.  Similar
mechanisms exist in a number of other packages, and some standards will
probably be forthcoming in this area.

- Dave

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