-! Copyright (C) 2012 John Benediktsson
+! Copyright (C) 2012 John Benediktsson, Doug Coleman
! See http://factorcode.org/license.txt for BSD license
+USING: arrays assocs assocs.private kernel math math.statistics
+sequences sets ;
+IN: assocs.extras
-USING: arrays assocs assocs.private kernel sequences ;
+: push-at-each ( value keys assoc -- )
+ '[ _ push-at ] with each ; inline
-IN: assocs.extras
+: deep-of ( assoc seq -- value/f )
+ [ of ] each ; inline
+
+: substitute! ( seq assoc -- seq )
+ substituter map! ;
+
+: assoc-reduce ( ... assoc identity quot: ( ... prev key value -- next ) -- ... result )
+ [ >alist ] 2dip [ first2 ] prepose reduce ; inline
+
+: reduce-keys ( ... assoc identity quot: ( ... prev elt -- ... next ) -- ... result )
+ [ drop ] prepose assoc-reduce ; inline
+
+: reduce-values ( ... assoc identity quot: ( ... prev elt -- ... next ) -- ... result )
+ [ nip ] prepose assoc-reduce ; inline
+
+: sum-keys ( assoc -- n ) 0 [ + ] reduce-keys ; inline
+
+: sum-values ( assoc -- n ) 0 [ + ] reduce-values ; inline
+
+: map-keys ( assoc quot: ( key -- key' ) -- assoc )
+ '[ _ dip ] assoc-map ; inline
+
+: map-values ( assoc quot: ( value -- value' ) -- assoc )
+ '[ swap _ dip swap ] assoc-map ; inline
+
+: filter-keys ( assoc quot: ( key -- key' ) -- assoc' )
+ '[ drop @ ] assoc-filter ; inline
+
+: filter-values ( assoc quot: ( value -- value' ) -- assoc' )
+ '[ nip @ ] assoc-filter ; inline
+
+: reject-keys ( assoc quot: ( key -- key' ) -- assoc' )
+ '[ drop @ ] assoc-reject ; inline
+
+: reject-values ( assoc quot: ( value -- value' ) -- assoc' )
+ '[ nip @ ] assoc-reject ; inline
+
+: rekey-new-assoc ( assoc keys -- newassoc )
+ [ tuck of ] with H{ } map>assoc ; inline
+
+: rekey-assoc ( assoc keys -- assoc )
+ [ dup keys ] dip diff over [ delete-at ] curry each ; inline
+
+: if-assoc-empty ( ..a assoc quot1: ( ..a -- ..b ) quot2: ( ..a assoc -- ..b ) -- ..b )
+ [ dup assoc-empty? ] [ [ drop ] prepose ] [ ] tri* if ; inline
+
+: assoc-invert-as ( assoc exemplar -- newassoc )
+ [ swap ] swap assoc-map-as ;
+
+: assoc-invert ( assoc -- newassoc )
+ dup assoc-invert-as ;
-: assoc-harvest ( assoc -- assoc' )
- [ nip empty? not ] assoc-filter ; inline
+: assoc-collect! ( assoc1 assoc2 -- assoc1 )
+ over [ push-at ] with-assoc assoc-each ;
-: deep-at ( assoc seq -- value/f )
- [ swap at ] each ; inline
+: assoc-collect ( assoc1 assoc2 -- newassoc )
+ [ [ [ assoc-size ] bi@ + ] [ drop ] 2bi new-assoc ] 2keep
+ [ assoc-collect! ] bi@ ;
-: zip-as ( keys values exemplar -- assoc )
- dup sequence? [
- [ 2array ] swap 2map-as
+! iterate over assoc2, replace conflicting values
+! Modifies assoc1
+: assoc-merge! ( assoc1 assoc2 quot: ( value1 value2 -- new-value ) -- assoc1' )
+ [| key2 val2 quot | val2 key2 pick
+ at* [ swap quot call ] [ drop ] if
+ key2 pick set-at ] curry assoc-each ; inline
+
+! Same as above, non-destructive
+: assoc-merge ( assoc1 assoc2 quot: ( value1 value2 -- new-value ) -- new-assoc )
+ pick [ [ clone ] 2dip assoc-merge! ]
+ [ drop nip ] if
+ ; inline
+
+! Successively apply assoc-merge operation
+: assoc-collapse ( seq quot: ( value1 value2 -- new-value ) -- assoc )
+ over empty?
+ [ 2drop f ]
+ [ [ unclip-slice H{ } or clone ] [ [ assoc-merge! ] curry ] bi* reduce ] if ; inline
+
+: assoc-collapse! ( assoc seq quot: ( value1 value2 -- new-value ) -- assoc )
+ [ assoc-merge! ] curry each ; inline
+
+: assoc-collapse-as ( seq quot: ( value1 value2 -- new-value ) exemplar -- assoc )
+ pick first assoc-size swap new-assoc
+ -rot assoc-collapse! ; inline
+
+GENERIC: delete-value-at ( value assoc -- )
+
+M: assoc delete-value-at
+ [ value-at* ] keep swap [ delete-at ] [ 2drop ] if ;
+
+ERROR: key-exists value key assoc ;
+: set-once-at ( value key assoc -- )
+ 2dup ?at [
+ key-exists
] [
- [ dup length ] dip new-assoc
- [ [ set-at ] with-assoc 2each ] keep
- ] if ; inline
+ drop set-at
+ ] if ;
-: substitute! ( seq assoc -- seq )
- substituter map! ;
+: kv-with ( obj assoc quot -- assoc curried )
+ swapd [ -rotd call ] 2curry ; inline
+
+<PRIVATE
+
+: (sequence>assoc) ( seq map-quot insert-quot assoc -- assoc )
+ [ swap curry compose each ] keep ; inline
+
+: (sequence-index>assoc) ( seq map-quot insert-quot assoc -- assoc )
+ [ swap curry compose each-index ] keep ; inline
+
+PRIVATE>
+
+: sequence>assoc! ( assoc seq map-quot: ( x -- ..y ) insert-quot: ( ..y assoc -- ) -- assoc )
+ roll (sequence>assoc) ; inline
+
+: assoc>object ( assoc map-quot insert-quot exemplar -- object )
+ clone [ swap curry compose assoc-each ] keep ; inline
+
+: assoc>object! ( assoc seq map-quot: ( x -- ..y ) insert-quot: ( ..y assoc -- ) -- object )
+ roll assoc>object ; inline
+
+: sequence>assoc ( seq map-quot insert-quot exemplar -- assoc )
+ clone (sequence>assoc) ; inline
+
+: sequence-index>assoc ( seq map-quot insert-quot exemplar -- assoc )
+ clone (sequence-index>assoc) ; inline
+
+: sequence-index>hashtable ( seq map-quot insert-quot -- hashtable )
+ H{ } sequence-index>assoc ; inline
+
+: sequence>hashtable ( seq map-quot insert-quot -- hashtable )
+ H{ } sequence>assoc ; inline
+
+: expand-keys-set-at-as ( assoc exemplar -- hashtable' )
+ [
+ [ swap dup sequence? [ 1array ] unless ]
+ [ '[ _ set-at ] with each ]
+ ] dip assoc>object ;
+
+: expand-keys-set-at ( assoc -- hashtable' )
+ H{ } expand-keys-set-at-as ;
+
+: expand-keys-push-at-as ( assoc exemplar -- hashtable' )
+ [
+ [ swap dup sequence? [ 1array ] unless ]
+ [ push-at-each ]
+ ] dip assoc>object ;
+
+: expand-keys-push-at ( assoc -- hashtable' )
+ H{ } expand-keys-push-at-as ; inline
+
+: expand-keys-push-as ( assoc exemplar -- hashtable' )
+ [
+ [ [ dup sequence? [ 1array ] unless ] dip ]
+ [ '[ _ 2array _ push ] each ]
+ ] dip assoc>object ;
+
+: expand-keys-push ( assoc -- hashtable' )
+ V{ } expand-keys-push-as ; inline
+
+: expand-values-set-at-as ( assoc exemplar -- hashtable' )
+ [
+ [ dup sequence? [ 1array ] unless swap ]
+ [ '[ _ _ set-at ] each ]
+ ] dip assoc>object ;
+
+: expand-values-set-at ( assoc -- hashtable' )
+ H{ } expand-values-set-at-as ; inline
+
+: expand-values-push-at-as ( assoc exemplar -- hashtable' )
+ [
+ [ dup sequence? [ 1array ] unless swap ]
+ [ '[ _ _ push-at ] each ]
+ ] dip assoc>object ;
+
+: expand-values-push-at ( assoc -- assoc )
+ H{ } expand-values-push-at-as ; inline
+
+: expand-values-push-as ( assoc exemplar -- assoc )
+ [
+ [ dup sequence? [ 1array ] unless ]
+ [ '[ 2array _ push ] with each ]
+ ] dip assoc>object ;
+
+: expand-values-push ( assoc -- sequence )
+ V{ } expand-values-push-as ; inline
+
+: assoc-any-key? ( ... assoc quot: ( ... key -- ... ? ) -- ... ? )
+ [ drop ] prepose assoc-find 2nip ; inline
+
+: assoc-any-value? ( ... assoc quot: ( ... key -- ... ? ) -- ... ? )
+ [ nip ] prepose assoc-find 2nip ; inline
+
+: assoc-all-key? ( ... assoc quot: ( ... key -- ... ? ) -- ... ? )
+ [ not ] compose assoc-any-key? not ; inline
+
+: assoc-all-value? ( ... assoc quot: ( ... key -- ... ? ) -- ... ? )
+ [ not ] compose assoc-any-value? not ; inline
+
+: any-multi-key? ( assoc -- ? )
+ [ sequence? ] assoc-any-key? ;
+
+: any-multi-value? ( assoc -- ? )
+ [ sequence? ] assoc-any-value? ;
+
+: flatten-keys ( assoc -- assoc' )
+ dup any-multi-key? [ expand-keys-set-at flatten-keys ] when ;
+
+: flatten-values ( assoc -- assoc' )
+ dup any-multi-value? [ expand-values-set-at flatten-values ] when ;
+
+: intersect-keys-as ( assoc seq exemplar -- elts )
+ [ [ of ] with ] dip zip-with-as sift-values ; inline
+
+: intersect-keys ( assoc seq -- elts )
+ over intersect-keys-as ; inline
+
+: values-of ( assoc seq -- seq' )
+ [ of ] with map ; inline
+
+: counts ( seq elts -- counts )
+ [ histogram ] dip intersect-keys ;
+
+: histogram-diff ( hashtable1 hashtable2 -- hashtable3 )
+ [ neg swap pick at+ ] assoc-each
+ [ 0 > ] filter-values ;
+
+: collect-by-multi! ( ... assoc seq quot: ( ... obj -- ... new-keys ) -- ... assoc )
+ [ keep swap ] curry rot [
+ [ push-at-each ] curry compose each
+ ] keep ; inline
+
+: collect-by-multi ( ... seq quot: ( ... obj -- ... new-keys ) -- ... assoc )
+ [ H{ } clone ] 2dip collect-by-multi! ; inline
+
+
+: collect-assoc-by! ( ... assoc input-assoc quot: ( ... key value -- ... key' value' ) -- ... assoc )
+ rot [ '[ @ swap _ push-at ] assoc-each ] keep ; inline
+
+: collect-assoc-by ( ... input-assoc quot: ( ... key value -- ... key value ) -- ... assoc )
+ [ H{ } clone ] 2dip collect-assoc-by! ; inline
+
+: collect-key-by! ( ... assoc input-assoc quot: ( ... key value -- ... new-key ) -- ... assoc )
+ '[ _ keepd ] collect-assoc-by! ; inline
+
+: collect-key-by ( ... input-assoc quot: ( ... key value -- ... new-key ) -- ... assoc )
+ [ H{ } clone ] 2dip collect-key-by! ; inline
+
+: collect-value-by! ( ... assoc input-assoc quot: ( ... key value -- ... new-key ) -- ... assoc )
+ '[ _ keep ] collect-assoc-by! ; inline
+
+: collect-value-by ( ... input-assoc quot: ( ... key value -- ... new-key ) -- ... assoc )
+ [ H{ } clone ] 2dip collect-value-by! ; inline
+
+
+: collect-assoc-by-multi! ( ... assoc input-assoc quot: ( ... key value -- ... new-keys value' ) -- ... assoc )
+ rot [ '[ @ swap _ push-at-each ] assoc-each ] keep ; inline
+
+: collect-assoc-by-multi ( ... assoc quot: ( ... key value -- ... new-keys value' ) -- ... assoc )
+ [ H{ } clone ] 2dip collect-assoc-by-multi! ; inline
+
+
+: collect-key-by-multi! ( ... assoc input-assoc quot: ( ... key value -- ... new-keys ) -- ... assoc )
+ '[ _ keepd ] collect-assoc-by-multi! ; inline
+
+: collect-key-by-multi ( ... assoc quot: ( ... key -- ... new-keys ) -- ... assoc )
+ [ H{ } clone ] 2dip collect-key-by-multi! ; inline
+
+
+: collect-value-by-multi! ( ... assoc input-assoc quot: ( ... key value -- ... new-keys ) -- ... assoc )
+ '[ _ keep ] collect-assoc-by-multi! ; inline
+
+: collect-value-by-multi ( ... assoc quot: ( ... value -- ... new-keys ) -- ... assoc )
+ [ H{ } clone ] 2dip collect-value-by-multi! ; inline
projects / factor.git / blobdiff