[XML-SIG] newbie question on loading/saving xml files

[Mark Humphrey]

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On Tue, Oct 23, 2001 at 02:02:49AM -0700, Mariappan, MaharajanX wrote:
> Hi Folks,
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> I just now start searching for documents for expat modules.
>=20
> I want to=20
> * load a xml file and show in GUI using python and
> * save the xml files in disk=20
>=20
> I went through=20
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>  <<DOM.html.url>>=20
> as Alexander told earlier, But I couldn't make out=20
>=20
> Pointer to any documents with examples will really help me

I'm checking my own code for this.  Seems like these are the functions that=
 you're wanting:

	Printer.PrintVisitor(...)
- and -
	FromXMLStream(...)

Writing works something like this:

	printer =3D Printer.PrintVisitor(f, 'UTF-8')
	printer.visit(domTree)

Here, f is an output file stream.  In my particular case,
	f =3D open(..., 'w')

You'll need to do this...
	from xml.dom.ext import Printer
=2E..to get this object.

The FromXMLStream function takes a file stream as an input and outputs a DO=
M tree, if the file stream was properly structured XML.  You get to it with:
	from xml.dom.ext.reader.Sax import FromXmlStream

After that, everything you do just consists of DOM tree manipulations, and =
you should be able to find good documentation on the DOM from the w3c web s=
ite (www.w3c.org).  PyXML has an odd mix of DOM level 1 and level 2 functio=
ns implemented, and I think I've even found a few random level 3 functions =
have been implemented.  Not sure what the exact pattern is, though.

--=20
Mark "Markus" Humphrey		mark.humphrey@acm.org
http://galadriel.ath.cx:88/
GPG Public Key A54BC06F, available on www.keyserver.net
If you can't say anything bad about Microsoft, don't say anything at all.

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