Question about where namespaces have to match...

[MatthewRed]

Hey there,My company uses a *somewhat* xml and schema liike format for many of their data and configuration files. It is my task to write a converter to valid and qualified xml and xsd files.My question (premise): looking within the xml files (under Referencing a Schema in an XML Document), there is a part "<note xmlns="http://www.w3schools.com"".'>http://www.w3schools.com"". I understand that this is the namespace which the root element, and all child elements operate under. Further, there is a "xsi:schemaLocation="http://www.w3schools.com" attribute. Note that these are only relevant code fragments.Further, within the schema there is a "targetNamespace="http://www.w3schools.com"" and a "xmlns="http://www.w3schools.com"" set of attributes within the root element of the schema file (all this stuff is taken from the link above).My question (actual): which of these need to match? I am not abundantly clear what the default namespace in the schema file is for, or the default namespace expressed in the schemaLocation attribute, w3schools doesn't explain it too clearly and I cannot yet find a clear reference on the subject.Thanks in advance-

[MatthewRed]

So aparently there is a seperate application of sorts I need to aquire to validate my xml file against my schema, a "schema validator". Does anyone know of one I can integrate into a c++ application?

[MatthewRed]

Xerces, by Apache is an adequate solution to parsing an xml file into a DOM. It supports validation. Take apart the DOMPrint example and it demonstrates a simple solution.