Re: [xml-dev] Help with updating XML files

[Jonathan Robie <jonathan.robie@redhat.com>]

There are many ways to do this, but if you are on Linux you probably 
have libxml already installed, so you might want to take a look at the 
libxml tutorial:

http://xmlsoft.org/tutorial/index.html

Alternatively, you could use the xerces-c library.

Jonathan

Ashish Lal wrote:
> I have about 4 to 5 xml small sized xml files (each with say 20 
> element nodes). I need an way to update the nodes in the XML files 
> from a C++ program. The C++ program would call a function with the 
> right parameters and the right node would be updated (see example 
> below). I am using this in a linux based embedded application and 
> would like to avoid installing an XML database.
>  
> Example: See the XML file below -
> ......................
> <Sensors>
>     <Temperature> 70 </Temperature>
>     <Pressure> 200 </Pressure>
>     <Humidity> 20 </Humidity>
> </Sensors>
> ...........................
>  
> How can I update the value of (say) Temperature from 70 to 90 in the 
> XML file from a C++ program?
>  
> Any help or pointers would be deeply appreciated.
>  
> Regards,
> --Ashish