= Library of Congress MODS in Ruby
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== Purpose
This is a class-oriented Ruby library that parses LOC's MOD data.
This gem is developed using the MODS 3.7 XSD schema.
== Usage
=== Ruby API
require 'loc_mods'
<modsCollection>LocMods::Collection.from_xml(File.read("spec/fixtures/record_1.xml"))
=== Command line interface
LocMods provides a command-line interface (CLI) for various operations. The main
executable is loc-mods.
==== Detect duplicates
The detect-duplicates command allows you to find duplicate MODS records based
on using a "primary ID" that is their DOI (Digital Object Identifier).
Usage:
Options:
-r, --recursive: Search for MODS files recursively in subdirectories.-v, --verbose: Display more detailed output.-o, --output FILE: Write the results to a file instead of stdout.Example:
This command will:
. Search for MODS XML files in the specified directory (and subdirectories if -r is used).
. Parse each MODS file and extract the DOI.
. Group records with the same DOI.
. For each group of duplicates:
.. Display the shared DOI.
.. List the filenames of the duplicate records.
.. Show a detailed comparison of the differences between the records.
The output will highlight differences, removed elements, and missing elements between the duplicate records, helping you identify discrepancies in the metadata.
== Testing
== License
Copyright Ribose.