42 lines
1.0 KiB
Factor
42 lines
1.0 KiB
Factor
! Copyright (C) 2008, 2009 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: kernel sequences math fry ;
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IN: deques
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GENERIC: push-front* ( obj deque -- node )
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GENERIC: push-back* ( obj deque -- node )
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GENERIC: peek-front ( deque -- obj )
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GENERIC: peek-back ( deque -- obj )
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GENERIC: pop-front* ( deque -- )
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GENERIC: pop-back* ( deque -- )
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GENERIC: delete-node ( node deque -- )
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GENERIC: deque-member? ( value deque -- ? )
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GENERIC: clear-deque ( deque -- )
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GENERIC: node-value ( node -- value )
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GENERIC: deque-empty? ( deque -- ? )
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: push-front ( obj deque -- )
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push-front* drop ;
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: push-all-front ( seq deque -- )
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[ push-front ] curry each ;
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: push-back ( obj deque -- )
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push-back* drop ;
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: push-all-back ( seq deque -- )
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[ push-back ] curry each ;
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: pop-front ( deque -- obj )
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[ peek-front ] [ pop-front* ] bi ;
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: pop-back ( deque -- obj )
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[ peek-back ] [ pop-back* ] bi ;
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: slurp-deque ( deque quot -- )
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[ drop '[ _ deque-empty? not ] ]
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[ '[ _ pop-back @ ] ]
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2bi while ; inline
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MIXIN: deque
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