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Really simple JSON and XML parsing, ripped from Merb and Rails.
Ruby Shell
Latest commit 7e2b953 @jnunemaker Merge pull request #54 from jgoyon/fix/raise_system_stack_error_large…

fix SystemStackError when parsing large JSON files


Build Status

Really simple JSON and XML parsing, ripped from Merb and Rails. The XML parser is ripped from Merb and the JSON parser is ripped from Rails. I take no credit, just packaged them for all to enjoy and easily use.


  • ruby 1.8.7
  • ruby 1.9+ (3 failures related to time parsing, would love it if someone could figure them out)

note on patches/pull requests

  • Fork the project.
  • Make your feature addition or bug fix.
  • Add tests for it. This is important so I don't break it in a future version unintentionally.
  • script/test - this will bootstrap and run the tests
  • Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself in another branch so I can ignore when I pull)
  • Send me a pull request. Bonus points for topic branches.


gem 'crack' # in Gemfile
require 'crack' # for xml and json
require 'crack/json' # for just json
require 'crack/xml' # for just xml


Crack::XML.parse("<tag>This is the contents</tag>")
# => {'tag' => 'This is the contents'}

Crack::JSON.parse('{"tag":"This is the contents"}')
# => {'tag' => 'This is the contents'}


Copyright (c) 2009 John Nunemaker. See LICENSE for details.


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