[xml] Using libxml2 to parse Wikipedia bot login results

[richardcavell mail com]

Hi everyone.

I'm a noob learning C.  C99, to be precise.  I've decided to code a 
Wikipedia bot in C.  I know it's probably not the best language to 
choose...

My code successfully logs in via the Wikimedia API.  In order to do so, 
I need to parse this kind of result:

<?xml version="1.0"?><api><login result="Success" lguserid="14084680" 
lgusername="RichardcavellBot" 
lgtoken="b0aa68b61c803e96144d82e0f535d63b" cookieprefix="enwiki" 
sessionid="bb538415baebda74e35ff6262dc92e19" /></api>

All I really want is to pass the term "login result" to a function and 
get "Success" in reply, or indeed whatever else is in those quotes.  At 
the moment I'm doing it using <string.h> and it works, but is probably 
not very future-proof nor very professional.  Should I be using libxml? 
 If so, how do I do it without getting bogged down in parsing an XML 
tree?

Richard