Parsing XHTML

#1 February 23rd, 2006, 11:55 AM

I'm trying to parse an XHTML document like this:

file.html:
<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>Some title</title>
</head>
<body>
<p>Some text</p>
</body>
</html>

with the following code:

XmlReaderSettings xs = new XmlReaderSettings();
xs.ProhibitDtd = false;
XmlReader reader = XmlReader.Create("file.html", xs);
reader.MoveToContent();

The last line generates the following exception:
An error has occurred while opening external DTD
'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd': Unable to connect
to the remote server

There is no difference if I'm using XmlReader, XmlDocument.Load...
There is no difference if I'm loading XML from file or from string...

The following line:
xs.ProhibitDtd = true;
produces of course an exception:
For security reasons DTD is prohibited in this XML document. To enable
DTD processing set the ProhibitDtd property on XmlReaderSettings to
false and pass the settings into XmlReader.Create method.

Ok, but I need this DTD! :)

How to do it?

#2 February 23rd, 2006, 01:05 PM

gizap@poczta.onet.pl wrote:
[color=blue]
> I'm trying to parse an XHTML document like this:
>
> file.html:
> <?xml version="1.0" ?>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
> <head>
> <title>Some title</title>
> </head>
> <body>
> <p>Some text</p>
> </body>
> </html>
>
> with the following code:
>
> XmlReaderSettings xs = new XmlReaderSettings();
> xs.ProhibitDtd = false;
> XmlReader reader = XmlReader.Create("file.html", xs);
> reader.MoveToContent();
>
> The last line generates the following exception:
> An error has occurred while opening external DTD
> 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd': Unable to connect
> to the remote server[/color]

Works for me if I am connected to the internet. Are you connected? How?
Is there any proxy used?
Make sure there is no code setting the property
xs.XmlResolver
to null.

--

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/

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