22 lines
		
	
	
		
			347 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
		
			347 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: true
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| 
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| class IO
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|   def readline_nonblock(sep = $INPUT_RECORD_SEPARATOR)
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|     line = +""
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|     buffer = +""
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| 
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|     loop do
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|       break if buffer == sep
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| 
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|       read_nonblock(1, buffer)
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|       line.concat(buffer)
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|     end
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| 
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|     line.freeze
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|   rescue IO::WaitReadable, EOFError => e
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|     raise e if line.empty?
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| 
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|     line.freeze
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|   end
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| end
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