I’ve been messing with easier ways of adding parsers to ruby-marc’s MARC::Reader object. The idea is that you can do this:
require 'marc' require 'my_marc_stuff' mbreader = MARC::Reader.new('test.mrc') # => Stock marc binary reader mbreader = MARC::Reader.new('test.mrc' :readertype=>:marcstrict) # => ditto MARC::Reader.register_parser(My::MARC::Parser, :marcstrict) mbreader = MARC::Reader.new('test.mrc') # => Uses My::MARC::Parser now xmlreader = MARC::Reader.new('test.xml', :readertype=>:marcxml) # ...and maybe further on down the road asreader = MARC::Reader.new('test.seq', :readertype=>:alephsequential) mjreader = MARC::Reader.new('test.json', :readertype=>:marchashjson) A parser need only implement #each and a module-level method #decode_from_string.
Read all about it on the github page.