48 lines
1.3 KiB
Factor
48 lines
1.3 KiB
Factor
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USING: kernel arrays sequences macros combinators ;
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IN: combinators.cleave
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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! Cleave into array
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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USING: words quotations fry arrays.lib ;
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: >quot ( obj -- quot ) dup word? [ 1quotation ] when ;
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: >quots ( seq -- seq ) [ >quot ] map ;
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MACRO: <arr> ( seq -- )
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[ >quots ] [ length ] bi
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'[ , cleave , narray ] ;
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MACRO: <2arr> ( seq -- )
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[ >quots ] [ length ] bi
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'[ , 2cleave , narray ] ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: {1} ( x -- {x} ) 1array ; inline
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: {2} ( x y -- {x,y} ) 2array ; inline
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: {3} ( x y z -- {x,y,z} ) 3array ; inline
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: {n} narray ;
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: {bi} ( x p q -- {p(x),q(x)} ) bi {2} ; inline
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: {tri} ( x p q r -- {p(x),q(x),r(x)} ) tri {3} ; inline
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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! Spread into array
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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MACRO: <arr*> ( seq -- )
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[ >quots ] [ length ] bi
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'[ , spread , narray ] ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: {bi*} ( x y p q -- {p(x),q(y)} ) bi* {2} ; inline
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: {tri*} ( x y z p q r -- {p(x),q(y),r(z)} ) tri* {3} ; inline
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