41 lines
		
	
	
		
			687 B
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			41 lines
		
	
	
		
			687 B
		
	
	
	
		
			Ruby
		
	
	
	
| # frozen_string_literal: true
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| 
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| require 'singleton'
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| 
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| class Emoji
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|   include Singleton
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| 
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|   def initialize
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|     data = Oj.load(File.open(Rails.root.join('lib', 'assets', 'emoji.json')))
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| 
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|     @map = {}
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| 
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|     data.each do |_, emoji|
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|       keys    = [emoji['shortname']] + emoji['aliases']
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|       unicode = codepoint_to_unicode(emoji['unicode'])
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| 
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|       keys.each do |key|
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|         @map[key] = unicode
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|       end
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|     end
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|   end
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| 
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|   def unicode(shortcode)
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|     @map[shortcode]
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|   end
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| 
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|   def names
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|     @map.keys
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|   end
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| 
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|   private
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| 
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|   def codepoint_to_unicode(codepoint)
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|     if codepoint.include?('-')
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|       codepoint.split('-').map(&:hex).pack('U*')
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|     else
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|       [codepoint.hex].pack('U')
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|     end
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|   end
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| end
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