[OSM-dev] Ruby XML parsing... REXML or libxml?

[nick at hogweed.org]

As part of the Rubification of the new renderer I need to read in the XML 
rules file e.g. http://nick.dev.openstreetmap.org/freemap.xml.

I seem to remember a while back that there had been a decision to change the 
XML library from REXML to libxml, for performance reasons. However looking 
round the Ruby XML parsing code in Subversion it's a mixture.... some code 
uses REXML, others libxml.

I'd imagine for a config file, performance issues are not as crucial as API 
requests. I seem to recall hearing that REXML was the easiest to use, being a 
library designed for Ruby rather than a port of a C library.... suggesting 
it's the one to go for in this case. Any opinions?

Thanks,
Nick