Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/core-ext/string.rb

Instance Method Summary collapse

Instance Method Details

#camelcase(first_letter = nil) ⇒ Object

Converts a string to camelcase.

By default camelcase leaves the first character of the string as given. If first_letter is set to :lower or false, then #camelcase will produce lowerCamelCase. If it is set to :upper or true it will produce UpperCamelCase.

#camelcase also converts ‘/’ to ‘::’ which is useful for converting paths to namespaces.

Examples

"camel_case".camelcase             #=> "camelCase"
"camel/case".camelcase(true)       #=> "Camel::Case"
"Camel_case".camelcase(false)      #=> "camelCase"

TODO: Is this the best approach? Should lowerCamelCase be default instead?



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# File 'lib/core-ext/string.rb', line 19

def camelcase(first_letter=nil)
  case first_letter
  when :upper, true
    upper_camelcase
  when :lower, false
    lower_camelcase
  else
    str = dup
    str.gsub!(/\/(.?)/){ "::#{$1.upcase}" }  # NOT SO SURE ABOUT THIS
    str.gsub!(/(?:_+|-+)([a-z])/){ $1.upcase }
    #str.gsub!(/(\A|\s)([a-z])/){ $1 + $2.upcase }
    str
  end
end

#lower_camelcase ⇒ Object 



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# File 'lib/core-ext/string.rb', line 42

def lower_camelcase
  str = dup
  str.gsub!(/\/(.?)/){ "::#{$1.upcase}" }  # NOT SO SURE ABOUT THIS
  str.gsub!(/(?:_+|-+)([a-z])/){ $1.upcase }
  str.gsub!(/(\A|\s)([A-Z])/){ $1 + $2.downcase }
  str
end

#upper_camelcase ⇒ Object 



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# File 'lib/core-ext/string.rb', line 34

def upper_camelcase
  str = dup
  str.gsub!(/\/(.?)/){ "::#{$1.upcase}" }  # NOT SO SURE ABOUT THIS
  str.gsub!(/(?:_+|-+)([a-z])/){ $1.upcase }
  str.gsub!(/(\A|\s)([a-z])/){ $1 + $2.upcase }
  str
end