MSXML v2 DOCTYPE

[ynyrjones]

Hi Everyone,

I'm trying to write an application in VB6 to export some XML using MS XML DOM version 2. I'm trying to get output the following line but I am having some trouble...

<!DOCTYPE NMLoader SYSTEM "standardX05.dtd">

within the structure...

<?xml version="1.0"?>
<!DOCTYPE NMLoader SYSTEM "standardX05.dtd">
<NMLoader>
<ele1>1</ele1>
<ele2>2</ele2>
</NMloader>

I've tried using the createCDataSection Method but it puts "[" around the tag and only appears to work within the <NMLoader> tags anyway, not at the start of the document. I've tried using the createTextNode method too but to no avail.

The nature of this post stems from a problem I've had trying to write the !DOCTYPE element when creating XML files "on the fly". This is because the DOCTYPE element is apparently read only. A few posts on the net mention that the only way to get around this problem is to first loadXML and then append the necessary DOCTYPE element.

I have attempted to load in the XML using the loadXML method. But I can't seem to append a DOCTYPE, I'm stuck again.

There's an IXMLDOMDocumentType object that I believe to be the DOCTYPE object that I need, I'm just struggling to see how and where I can append it.

The first question really is: Is this the way to be solving this problem? And if not, what is the best method of overcoming it? Installing a later version of ms xml?

The second question is: If this is the way to solve the problem, could you please post some code to help me out! I'm really struggling!

Many Thanks
Ynyr

 

[tsuji]

This is how you do it. (Make it early bind you want.)
[tt]
set oxmldoc=createobject("msxml2.domdocument.4.0")
with oxmldoc
.async=false
.validateonparse=false
.load "your_xml_doc.xml"
.loadxml "<?xml version=""1.0""?><!DOCTYPE NMLoader SYSTEM ""standardX05.dtd"">" & .documentElement.xml
.save "your_new_doc.xml"
end with
set oxmldoc=nothing
[/tt]
A couple of comments is of order.
[1] The above supposed the original "your_xml_doc.xml" is well-formed. Otherwise, you insert control on parseerror before loadxml.
[2] Anything like processing instructions and comments before the root will be lost. Hence, to use that form, you better place all those within the root.
[3] You can do the same with an xslt document which is essentially an identity transformation, but with an attribute doctype-system specified in the output element.
[tt]<xslutput method="xml" doctype-system="standardX05.dtd" />[/tt]
The transformation will be accomplished through transform() method or transformtoobject() method. This method will plug the hole of inconvenience mentioned in [2]. But I won't elaborate this.

 

[ynyrjones]

Thanks tsuji

I'll give that a try now. I've looked in a lot of places for an answer! I'll post back to let you know how its gone.

Ynyr