Module: Tap::Env::StringExt

Included in:
String
Defined in:
lib/tap/env/string_ext.rb

Overview

StringExt provides two common string transformations, camelize and underscore. StringExt is automatically included in String.

Both methods are directly taken from the ActiveSupport Inflections module. StringExt should not cause conflicts if ActiveSupport is loaded alongside Tap.

ActiveSupport is distributed with an MIT-LICENSE:

Copyright (c) 2004-2008 David Heinemeier Hansson

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
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The above copyright notice and this permission notice shall be included in all copies or substantial 
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Instance Method Summary collapse

Instance Method Details

#camelize(first_letter = :upper) ⇒ Object

camelize converts self to UpperCamelCase. If the argument to camelize is set to :lower then camelize produces lowerCamelCase. camelize will also convert ‘/’ to ‘::’ which is useful for converting paths to namespaces.



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# File 'lib/tap/env/string_ext.rb', line 36

def camelize(first_letter = :upper)
  case first_letter
  when :upper then self.to_s.gsub(/\/(.?)/) { "::" + $1.upcase }.gsub(/(^|_)(.)/) { $2.upcase }
  when :lower then self.first + camelize[1..-1]
  end
end

#underscore ⇒ Object

The reverse of camelize. Makes an underscored, lowercase form from self. underscore will also change ‘::’ to ‘/’ to convert namespaces to paths.



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# File 'lib/tap/env/string_ext.rb', line 46

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