Module: Chassis::StringUtils

Defined in:
lib/chassis/string_utils.rb

Class Method Summary collapse

Class Method Details

.constantize(camel_cased_word) ⇒ Object 



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# File 'lib/chassis/string_utils.rb', line 23

def constantize(camel_cased_word)
  names = camel_cased_word.split('::')
  names.shift if names.empty? || names.first.empty?

  names.inject(Object) do |constant, name|
    if constant == Object
      constant.const_get(name)
    else
      candidate = constant.const_get(name)
      next candidate if constant.const_defined?(name, false)
      next candidate unless Object.const_defined?(name)

      # Go down the ancestors to check it it's owned
      # directly before we reach Object or the end of ancestors.
      constant = constant.ancestors.inject do |const, ancestor|
        break const    if ancestor == Object
        break ancestor if ancestor.const_defined?(name, false)
        const
      end

      # owner is in Object, so raise
      constant.const_get(name, false)
    end
  end
end

.demodulize(path) ⇒ Object 



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# File 'lib/chassis/string_utils.rb', line 3

def demodulize(path)
  path = path.to_s
  if i = path.rindex('::')
    path[(i+2)..-1]
  else
    path
  end
end

.underscore(camel_cased_word) ⇒ Object 



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# File 'lib/chassis/string_utils.rb', line 13

def underscore(camel_cased_word)
  word = camel_cased_word.to_s.gsub('::', '/')
  word.gsub!(/([A-Z\d]+)([A-Z][a-z])/,'\1_\2')
  word.gsub!(/([a-z\d])([A-Z])/,'\1_\2')
  word.tr!("-", "_")
  word.downcase!
  word
end