lull: remove duplicate mop arms after merge

This commit is contained in:
~wicrum-wicrun 2023-04-05 16:23:12 +02:00
parent f0cc9c34cd
commit 447bfea9f8

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@ -20,412 +20,6 @@
size=@ud
max-size=_64
==
::
:: +mop: constructs and validates ordered ordered map based on key,
:: val, and comparator gate
::
++ mop
|* [key=mold value=mold]
|= ord=$-([key key] ?)
|= a=*
=/ b ;;((tree [key=key val=value]) a)
?> (apt:((on key value) ord) b)
b
::
::
++ ordered-map on
:: +on: treap with user-specified horizontal order, ordered-map
::
:: WARNING: ordered-map will not work properly if two keys can be
:: unequal under noun equality but equal via the compare gate
::
++ on
~/ %on
|* [key=mold val=mold]
=> |%
+$ item [key=key val=val]
--
:: +compare: item comparator for horizontal order
::
~% %comp +>+ ~
|= compare=$-([key key] ?)
~% %core + ~
|%
:: +all: apply logical AND boolean test on all values
::
++ all
~/ %all
|= [a=(tree item) b=$-(item ?)]
^- ?
|-
?~ a
&
?&((b n.a) $(a l.a) $(a r.a))
:: +any: apply logical OR boolean test on all values
::
++ any
~/ %any
|= [a=(tree item) b=$-(item ?)]
|- ^- ?
?~ a
|
?|((b n.a) $(a l.a) $(a r.a))
:: +apt: verify horizontal and vertical orderings
::
++ apt
~/ %apt
|= a=(tree item)
=| [l=(unit key) r=(unit key)]
|- ^- ?
:: empty tree is valid
::
?~ a %.y
:: nonempty trees must maintain several criteria
::
?& :: if .n.a is left of .u.l, assert horizontal comparator
::
?~(l %.y (compare key.n.a u.l))
:: if .n.a is right of .u.r, assert horizontal comparator
::
?~(r %.y (compare u.r key.n.a))
:: if .a is not leftmost element, assert vertical order between
:: .l.a and .n.a and recurse to the left with .n.a as right
:: neighbor
::
?~(l.a %.y &((mor key.n.a key.n.l.a) $(a l.a, l `key.n.a)))
:: if .a is not rightmost element, assert vertical order
:: between .r.a and .n.a and recurse to the right with .n.a as
:: left neighbor
::
?~(r.a %.y &((mor key.n.a key.n.r.a) $(a r.a, r `key.n.a)))
==
:: +bap: convert to list, right to left
::
++ bap
~/ %bap
|= a=(tree item)
^- (list item)
=| b=(list item)
|- ^+ b
?~ a b
$(a r.a, b [n.a $(a l.a)])
:: +del: delete .key from .a if it exists, producing value iff deleted
::
++ del
~/ %del
|= [a=(tree item) =key]
^- [(unit val) (tree item)]
?~ a [~ ~]
:: we found .key at the root; delete and rebalance
::
?: =(key key.n.a)
[`val.n.a (nip a)]
:: recurse left or right to find .key
::
?: (compare key key.n.a)
=+ [found lef]=$(a l.a)
[found a(l lef)]
=+ [found rig]=$(a r.a)
[found a(r rig)]
:: +dip: stateful partial inorder traversal
::
:: Mutates .state on each run of .f. Starts at .start key, or if
:: .start is ~, starts at the head. Stops when .f produces .stop=%.y.
:: Traverses from left to right keys.
:: Each run of .f can replace an item's value or delete the item.
::
++ dip
~/ %dip
|* state=mold
|= $: a=(tree item)
=state
f=$-([state item] [(unit val) ? state])
==
^+ [state a]
:: acc: accumulator
::
:: .stop: set to %.y by .f when done traversing
:: .state: threaded through each run of .f and produced by +abet
::
=/ acc [stop=`?`%.n state=state]
=< abet =< main
|%
++ this .
++ abet [state.acc a]
:: +main: main recursive loop; performs a partial inorder traversal
::
++ main
^+ this
:: stop if empty or we've been told to stop
::
?: =(~ a) this
?: stop.acc this
:: inorder traversal: left -> node -> right, until .f sets .stop
::
=. this left
?: stop.acc this
=^ del this node
=? this !stop.acc right
=? a del (nip a)
this
:: +node: run .f on .n.a, updating .a, .state, and .stop
::
++ node
^+ [del=*? this]
:: run .f on node, updating .stop.acc and .state.acc
::
?> ?=(^ a)
=^ res acc (f state.acc n.a)
?~ res
[del=& this]
[del=| this(val.n.a u.res)]
:: +left: recurse on left subtree, copying mutant back into .l.a
::
++ left
^+ this
?~ a this
=/ lef main(a l.a)
lef(a a(l a.lef))
:: +right: recurse on right subtree, copying mutant back into .r.a
::
++ right
^+ this
?~ a this
=/ rig main(a r.a)
rig(a a(r a.rig))
--
:: +gas: put a list of items
::
++ gas
~/ %gas
|= [a=(tree item) b=(list item)]
^- (tree item)
?~ b a
$(b t.b, a (put a i.b))
:: +get: get val at key or return ~
::
++ get
~/ %get
|= [a=(tree item) b=key]
^- (unit val)
?~ a ~
?: =(b key.n.a)
`val.n.a
?: (compare b key.n.a)
$(a l.a)
$(a r.a)
:: +got: need value at key
::
++ got
|= [a=(tree item) b=key]
^- val
(need (get a b))
:: +has: check for key existence
::
++ has
~/ %has
|= [a=(tree item) b=key]
^- ?
!=(~ (get a b))
:: +lot: take a subset range excluding start and/or end and all elements
:: outside the range
::
++ lot
~/ %lot
|= $: tre=(tree item)
start=(unit key)
end=(unit key)
==
^- (tree item)
|^
?: ?&(?=(~ start) ?=(~ end))
tre
?~ start
(del-span tre %end end)
?~ end
(del-span tre %start start)
?> (compare u.start u.end)
=. tre (del-span tre %start start)
(del-span tre %end end)
::
++ del-span
|= [a=(tree item) b=?(%start %end) c=(unit key)]
^- (tree item)
?~ a a
?~ c a
?- b
%start
:: found key
?: =(key.n.a u.c)
(nip a(l ~))
:: traverse to find key
?: (compare key.n.a u.c)
:: found key to the left of start
$(a (nip a(l ~)))
:: found key to the right of start
a(l $(a l.a))
::
%end
:: found key
?: =(u.c key.n.a)
(nip a(r ~))
:: traverse to find key
?: (compare key.n.a u.c)
:: found key to the left of end
a(r $(a r.a))
:: found key to the right of end
$(a (nip a(r ~)))
==
--
:: +nip: remove root; for internal use
::
++ nip
~/ %nip
|= a=(tree item)
^- (tree item)
?> ?=(^ a)
:: delete .n.a; merge and balance .l.a and .r.a
::
|- ^- (tree item)
?~ l.a r.a
?~ r.a l.a
?: (mor key.n.l.a key.n.r.a)
l.a(r $(l.a r.l.a))
r.a(l $(r.a l.r.a))
::
:: +pop: produce .head (leftmost item) and .rest or crash if empty
::
++ pop
~/ %pop
|= a=(tree item)
^- [head=item rest=(tree item)]
?~ a !!
?~ l.a [n.a r.a]
=/ l $(a l.a)
:- head.l
:: load .rest.l back into .a and rebalance
::
?: |(?=(~ rest.l) (mor key.n.a key.n.rest.l))
a(l rest.l)
rest.l(r a(r r.rest.l))
:: +pry: produce head (leftmost item) or null
::
++ pry
~/ %pry
|= a=(tree item)
^- (unit item)
?~ a ~
|-
?~ l.a `n.a
$(a l.a)
:: +put: ordered item insert
::
++ put
~/ %put
|= [a=(tree item) =key =val]
^- (tree item)
:: base case: replace null with single-item tree
::
?~ a [n=[key val] l=~ r=~]
:: base case: overwrite existing .key with new .val
::
?: =(key.n.a key) a(val.n val)
:: if item goes on left, recurse left then rebalance vertical order
::
?: (compare key key.n.a)
=/ l $(a l.a)
?> ?=(^ l)
?: (mor key.n.a key.n.l)
a(l l)
l(r a(l r.l))
:: item goes on right; recurse right then rebalance vertical order
::
=/ r $(a r.a)
?> ?=(^ r)
?: (mor key.n.a key.n.r)
a(r r)
r(l a(r l.r))
:: +ram: produce tail (rightmost item) or null
::
++ ram
~/ %ram
|= a=(tree item)
^- (unit item)
?~ a ~
|-
?~ r.a `n.a
$(a r.a)
:: +run: apply gate to transform all values in place
::
++ run
~/ %run
|* [a=(tree item) b=$-(val *)]
|-
?~ a a
[n=[key.n.a (b val.n.a)] l=$(a l.a) r=$(a r.a)]
:: +tab: tabulate a subset excluding start element with a max count
::
++ tab
~/ %tab
|= [a=(tree item) b=(unit key) c=@]
^- (list item)
|^
(flop e:(tabulate (del-span a b) b c))
::
++ tabulate
|= [a=(tree item) b=(unit key) c=@]
^- [d=@ e=(list item)]
?: ?&(?=(~ b) =(c 0))
[0 ~]
=| f=[d=@ e=(list item)]
|- ^+ f
?: ?|(?=(~ a) =(d.f c)) f
=. f $(a l.a)
?: =(d.f c) f
=. f [+(d.f) [n.a e.f]]
?:(=(d.f c) f $(a r.a))
::
++ del-span
|= [a=(tree item) b=(unit key)]
^- (tree item)
?~ a a
?~ b a
?: =(key.n.a u.b)
r.a
?: (compare key.n.a u.b)
$(a r.a)
a(l $(a l.a))
--
:: +tap: convert to list, left to right
::
++ tap
~/ %tap
|= a=(tree item)
^- (list item)
=| b=(list item)
|- ^+ b
?~ a b
$(a l.a, b [n.a $(a r.a)])
:: +uni: unify two ordered maps
::
:: .b takes precedence over .a if keys overlap.
::
++ uni
~/ %uni
|= [a=(tree item) b=(tree item)]
^- (tree item)
?~ b a
?~ a b
?: =(key.n.a key.n.b)
[n=n.b l=$(a l.a, b l.b) r=$(a r.a, b r.b)]
?: (mor key.n.a key.n.b)
?: (compare key.n.b key.n.a)
$(l.a $(a l.a, r.b ~), b r.b)
$(r.a $(a r.a, l.b ~), b l.b)
?: (compare key.n.a key.n.b)
$(l.b $(b l.b, r.a ~), a r.a)
$(r.b $(b r.b, l.a ~), a l.a)
--
:: +clock: polymorphic cache type for use with the clock replacement algorithm
::
:: The +by-clock core wraps interface arms for manipulating a mapping from