[xml] question on namespace

["Chris sun" <lei_sun comcast net>]

Hi :

   I have the following code to create xml doc.

 

xmlDocPtr doc;

xmlNsPtr nsp;

xmlNodePtr root;

 

doc = xmlNewDoc(BAD_CAST "1.0");

nsp = xmlNewNs(NULL, BAD_CAST http://www.mycompany.com/NAME, NULL);

root = xmlNewNode(nsp, BAD_CAST "root_node");

xmlDocSetRootElement(doc, root);

......

 

if I call schema validation function and pass this xmlDocPtr, the validation will succeed. However, after calling xmlSaveFormatFileEnc(doc, "UTF-9", 1). The newly created file doesn't have namespace tag on it's root element.

so if I open this file and validate , it will fail.

I wonder why the default namespace I specified was saved into xml file ?

 

Thank you!

 

chris