25 lines
		
	
	
		
			510 B
		
	
	
	
		
			Scheme
		
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			510 B
		
	
	
	
		
			Scheme
		
	
	
	
| (define debug-mode #f)
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| 
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| (define *tty-port* #f)
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| 
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| (define (init-tty-debug-output!)
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|   (and debug-mode
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|        (call-with-values 
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| 	   open-pty
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| 	 (lambda (input-port name)
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| 	   (set! *tty-port* (dup->outport input-port))
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| 	   (close input-port)
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| 	  (set-port-buffering *tty-port* bufpol/block 8192)
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| 	  name))))
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| 
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| (define debug-message
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|   (lambda args
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|     (if (and debug-mode *tty-port*)
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| 	(with-current-output-port*
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| 	 *tty-port*
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| 	 (lambda ()
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| 	   (for-each write args)
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| 	   (newline)
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| 	   (flush-tty/output *tty-port*))))))
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| 
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