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# marc4j4r -- work with marc4j in JRuby

marc4j4r is some simple syntactic sugar on top of the java libary [marc4j](http://marc4j.tigris.org/). It allows iteration 
via #each and implements many of the same convenience functions as [ruby-marc](http://marc.rubyforge.org/).

Most of the good stuff is in RecordImpl and DataFieldImpl. They, along with the *Reader classes, now implement #each 
for their subparts as well as #[] where it makes sense. See the examples in [the documentation]() for more information.

There's also a convenience module method, MARC4J4R.reader, to get a reader, as shown below.

Full documentation can be generated via the 'rake yard' command and is online at http://rdoc.info/projects/billdueber/marc4j4r

## Example

    require 'rubygems'
    require 'marc4j4r'
  
    reader = MARC4J4R.reader('test.mrc')
    #reader = MARC4J4R.reader('test.mrc', :strictmarc) # be explicit
    #preader = MARC4J4R.reader('test.mrc', :permissivemarc)
    #xmlreader = MARC4J4R.reader('test.xml', :marcxml)
    # 
    # Can also use an IO object
    # reader = MARC4J4R.reader(File.new('test.mrc'))
  
  
    reader.each do |r|
      lccn = r['010']['a'] if r['010']
      isSBns = r.find_by_tag(['020', '022']).map {|f| f['a']}
      first035 = r['035']
      fullTitle = r['245'].sub_values(['a', 'b', 'd', 'f', 'h']).join(' ')
      r['300'].each do |subfield|
        puts subfield.code + ' ' + subfield.value
      end
    end
  


== Copyright

Copyright (c) 2010 BillDueber. See LICENSE for details.

Version data entries

6 entries across 6 versions & 1 rubygems

Version	Path
marc4j4r-0.1.6	README.markdown
marc4j4r-0.1.5	README.markdown
marc4j4r-0.1.4	README.markdown
marc4j4r-0.1.3	README.markdown
marc4j4r-0.1.2	README.markdown
marc4j4r-0.1.0	README.markdown