What's more, once the lexical analysis and format parsing have been solved,
the developer must also consider a way to load documents from the various
XML transports:
Such a piece of code could load a document from a file:
URL
HTTP is most common, and ObjectPAL does not have any native function
to access data from http: URLs
Needs one code to the Windows API, or use a third-party library ?
To sum the situation up, most of the time, the variability of XML sources
cannot be controlled a priori, and native ObjectPAL parsing is not
a solution.