09/01/05 22:47:21
>>79
調べ方の一例
$ irb -ractive_support
irb> String.ancestors
=> [String, ActiveSupport::CoreExtensions::String::Multibyte,
ActiveSupport::CoreExtensions::String::Behavior, ActiveSupport::CoreExtensions::String::Filters,
ActiveSupport::CoreExtensions::String::Conversions,
ActiveSupport::CoreExtensions::String::Access, ActiveSupport::CoreExtensions::String::Inflections,
Enumerable, Comparable, Object, ActiveSupport::Dependencies::Loadable, Base64::Deprecated,
Base64, Kernel]
このうち、目的のメソッドはInflections(語形変化)の中にある。
irb> ActiveSupport::CoreExtensions::String::Inflections.instance_methods
=> ["titleize", "constantize", "singularize", "classify", "demodulize", "underscore", "titlecase",
"foreign_key", "tableize", "humanize", "pluralize", "camelize", "camelcase", "parameterize",
"dasherize"]
irb> "fooBarBaz".underscore
=> "foo_bar_baz"