13 lines
		
	
	
		
			312 B
		
	
	
	
		
			Factor
		
	
	
			
		
		
	
	
			13 lines
		
	
	
		
			312 B
		
	
	
	
		
			Factor
		
	
	
| 
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| USING: kernel parser generic math sequences strings ;
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| 
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| IN: lisp.lexer
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| TUPLE: sexp-lexer ;
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| : <sexp-lexer> ( text -- lexer )
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|     <lexer> sexp-lexer construct-delegate ;
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| 
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| M: sexp-lexer skip-word ( lexer -- )
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| [ 2dup nth "\"()" member?
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|   [ drop 1+ ] [ [ dup blank? swap ")" member? or ] skip ] if ] change-column ; |