Module: BubbleWrap::String

Defined in:
motion/core/string.rb

Overview

This module contains simplified version of the ‘camelize` and `underscore` methods from ActiveSupport, since these are such common operations when dealing with the Cocoa API.

Instance Method Summary collapse

Instance Method Details

#camelize(uppercase_first_letter = true) ⇒ Object

Convert ‘snake_case’ into ‘CamelCase’



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# File 'motion/core/string.rb', line 8

def camelize(uppercase_first_letter = true)
  string = self.dup
  string.gsub!(/(?:_|(\/))([a-z\d]*)/i) do
    new_word = $2.downcase
    new_word[0] = new_word[0].upcase
    new_word = "/#{new_word}" if $1 == '/'
    new_word
  end
  if uppercase_first_letter && uppercase_first_letter != :lower
    string[0] = string[0].upcase
  else
    string[0] = string[0].downcase
  end
  string.gsub!('/', '::')
  string
end

#to_color ⇒ Object 



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# File 'motion/core/string.rb', line 36

def to_color
  # First check if it is a color keyword
  keyword_selector = "#{self.camelize(:lower)}Color"
  return UIColor.send(keyword_selector) if UIColor.respond_to? keyword_selector

  # Next attempt to convert from hex
  hex_color = self.gsub("#", "")   
  case hex_color.size 
    when 3
      colors = hex_color.scan(%r{[0-9A-Fa-f]}).map{ |el| (el * 2).to_i(16) }
    when 6
      colors = hex_color.scan(%r<[0-9A-Fa-f]{2}>).map{ |el| el.to_i(16) }        
    else
      raise ArgumentError
  end 
  if colors.size == 3
    UIColor.colorWithRed((colors[0]/255.0), green:(colors[1]/255.0), blue:(colors[2]/255.0), alpha:1)
  else
    raise ArgumentError
  end 
end

#underscore ⇒ Object

Convert ‘CamelCase’ into ‘snake_case’



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# File 'motion/core/string.rb', line 26

def underscore
  word = self.dup
  word.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