Re: [xml] Inserting node using xpath and schema

[Olger Warnier <olger warnier gmail com>]

Hi Joe,

Did you look at the site http://xmlsoft.org ?

It contains developer documentation, including samples that should  
help you to proceed.
(it worked for me)

> I'm fairly new to libxml2 and could not find answers to my questions
> below by searching the FAQ and list archives. I'm trying to determine
> how I can use libxml2 to accomplish the following:
>
> - I have a parsed XML document in memory
> - I have multiple schemas for the document (a base schema and
> extensions)
> - I have an Xpath element expression and an element value

See http://xmlsoft.org/docs.html

> I want to be able to add the new element and value to the document  
> based
> on the Xpath expression and the schemas. The schema contains sequences
> so the Xpath element has to inserted as a child node in between  
> existing
> siblings.

This sounds pretty straight forward, but I must say that it is not to  
clear to me what you actually want todo. For xpath coding see http:// 
xmlsoft.org/html/libxml-xpath.html

> I can add a child node but its always after all of the existing
> children.
>
> Are there APIs that allow me to insert a node in between existing
> sibling nodes?

See http://xmlsoft.org/html/libxml-tree.html

> Is there a way to use a schema to tell libxml2 to insert a node as a
> child of a parent and the schema is used to determine the proper
> location of the node amongst the existing children?
Don't know, I didn't do too much with the schema parts of the code.  
This sounds as a piece of custom (your own) logic but I could be wrong.

If you wonder how you can use these APIs, see http://xmlsoft.org/ 
examples/index.html

> Thanks in advance,
>
> Joe
It would probably help to post more specific questions in order to  
get an answer.


Kind Regards,

Olger