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.IX Title "Net::OSCAR::XML 3"
.TH Net::OSCAR::XML 3 "2010-10-07" "perl v5.8.8" "User Contributed Perl Documentation"
.SH "NAME"
Net::OSCAR::XML \-\- XML functions for Net::OSCAR
.SH "VERSION"
.IX Header "VERSION"
version 1.928
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
We're doing the fancy-schmancy Protocol.xml stuff here, so I'll explain it here.
.PP
Protocol.xml contains a number of \*(L"\s-1OSCAR\s0 protocol elements\*(R".  One <define> block
is one \s-1OSCAR\s0 protocol elemennt.
.PP
When the module is first loaded, Protocol.xml is parsed and two hashes are created,
one whose keys are the names the the elements and whose values are the contents
of the XML::Parser tree which represents the contents of those elements; the other
hash has a family/subtype tuple as a key and element names as a value.
.PP
To do something with an element, given its name, Net::OSCAR calls \f(CW\*(C`protoparse("element name")\*(C'\fR.
This returns a \f(CW\*(C`Net::OSCAR::XML::Template\*(C'\fR object, which has \f(CW\*(C`pack\*(C'\fR and \f(CW\*(C`unpack\*(C'\fR methods.
\&\f(CW\*(C`pack\*(C'\fR takes a hash and returns a string of binary characters, and \f(CW\*(C`unpack\*(C'\fR goes the
other way around.  The objects are cached, so \f(CW\*(C`protoparse\*(C'\fR only has to do actual work once
for every protocol element.