mirror of
https://github.com/urbit/shrub.git
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226 lines
6.9 KiB
Plaintext
226 lines
6.9 KiB
Plaintext
!: :: %behn, just a timer
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!? 164
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::::
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=, ^behn
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|= pit/vase
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=> =~
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|%
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++ sqeu |* {a/_* b/_*} :: binary skew queno
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$: r/@u :: rank+depth
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k/a :: priority
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n/b :: value
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c/(broq a b) :: children
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== ::
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++ broq |* {a/_* b/_*} :: brodal skew qeu
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(list (sqeu a b)) ::
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++ move {p/duct q/(wind note gift:able)} :: local move
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++ note $~ :: out request $->
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++ sign $~ :: in result $<-
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++ clok (broq @da duct) :: stored timers
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--
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::
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|%
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++ raze
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|= tym/{p/clok q/clok}
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^+ tym
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?~ p.tym tym
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?~ q.tym tym
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?: (gth p:~(get up p.tym) p:~(get up q.tym)) :: killed nonexisting
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~& [%snooze-lost del=p:~(get up q.tym) top=p:~(get up p.tym)]
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$(q.tym ~(pop up q.tym))
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?: =(~(get up p.tym) ~(get up q.tym))
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$(tym [~(pop up p.tym) ~(pop up q.tym)])
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tym
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::
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++ up :: priority queue
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=+ [key=@da val=duct]
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=+ cmp=lte :: lte=min, gte=max
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=> |%
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++ link
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|= {p/(sqeu key val) q/(sqeu key val)} :: link eq rank
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^- (sqeu key val)
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?> =(r.p r.q)
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?: (cmp k.p k.q)
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[r=+(r.p) k=k.p n=n.p c=[i=q t=c.p]]
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[r=+(r.q) k=k.q n=n.q c=[i=p t=c.q]]
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::
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++ sink :: skew link
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|= {p/(sqeu key val) q/(sqeu key val) r/(sqeu key val)}
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^- (sqeu key val)
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?: &((cmp k.q k.p) (cmp k.q k.r))
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[r=+(r.q) k=k.q n=n.q c=[i=p t=[i=r t=c.q]]]
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?: &((cmp k.r k.p) (cmp k.r k.q))
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[r=+(r.r) k=k.r n=n.r c=[i=p t=[i=q t=c.r]]]
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[r=+(r.q) k=k.p n=n.p c=[i=q t=[i=r t=~]]]
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::
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++ sert :: internal ins op
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|= {p/(sqeu key val) q/(broq key val)}
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^- (broq key val)
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?~ q [p ~]
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?> (lte r.p r.i.q)
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?: (lth r.p r.i.q)
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[i=p t=q]
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$(p (link p i.q), q t.q)
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::
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++ uniq :: remove init dup
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|= q/(broq key val)
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?~ q ~
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(sert i.q t.q)
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::
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++ meek :: unique meld
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|= {p/(broq key val) q/(broq key val)}
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^- (broq key val)
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?~ p q
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?~ q p
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?: (lth r.i.p r.i.q)
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[i.p $(p t.p)]
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?: (lth r.i.q r.i.p)
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[i.q $(q t.q)]
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(sert (link i.p i.q) $(p t.p, q t.q))
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::
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++ mini :: getmin
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|= q/(broq key val)
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^- p/{(sqeu key val) (broq key val)}
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?~ q ~|(%fatal-mini-empty !!)
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?~ t.q [i=i.q t=~]
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=+ [l r]=$(q t.q)
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?: (cmp k.i.q k.l)
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[i.q t.q]
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[l [i.q r]]
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::
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++ spit :: split
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|= {p/(broq key val) q/(list {k/key n/val}) r/(broq key val)}
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^- {t/(broq key val) x/(list {k/key n/val})}
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?~ r
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[t=p x=q]
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?: =(0 r.i.r)
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$(q [[k=k.i.r n=n.i.r] q], r t.r)
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$(p [i.r p], r t.r)
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--
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|_ a/(broq key val) :: public interface
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++ put :: insert element
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|= {k/key n/val}
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^+ a
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?~ a [i=[r=0 k=k n=n c=~] t=~]
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?~ t.a [i=[r=0 k=k n=n c=~] t=a]
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?: =(r.i.a r.i.t.a)
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[i=(sink [r=0 k=k n=n c=~] i.a i.t.a) t=t.t.a]
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[i=[r=0 k=k n=n c=~] t=a]
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::
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++ pop :: remove top
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^+ a
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=+ ?~ a ~|(%empty-broq-pop !!)
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[l r]=(mini a)
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=+ [t x]=(spit ~ ~ c.l)
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=. a r
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=. a (uni t)
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(gas x)
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::
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++ gas
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|= b/(list {k/key n/val})
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^+ a
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(roll b |=({{k/key n/val} q/_a} (put(a q) k n)))
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::
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++ tap
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^- (list {k/key n/val})
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?~ a ~
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[get tap(a pop)]
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::
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++ get :: retrieve top
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^- {p/key q/val}
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?~ a ~|(%empty-broq-peek !!)
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?~ t.a [k n]:i.a
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=+ m=get(a t.a)
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?.((cmp k.i.a p.m) m [k n]:i.a)
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::
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++ uni :: merge
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|= q/(broq key val)
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^+ a
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(meek (uniq a) (uniq q))
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--
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--
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. ==
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=| $: $0 ::
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tym/{p/clok q/clok} :: positive+negative
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== ::
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|= {now/@da eny/@ ski/sley} :: current invocation
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^?
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|% :: poke+peek pattern
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++ call :: handle request
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|= $: hen/duct
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hic/(hypo (hobo task:able))
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==
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^- {p/(list move) q/_..^$}
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=> %= . :: XX temporary
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q.hic
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^- task:able
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?: ?=($soft -.q.hic)
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:: ~& [%behn-call-soft (,@tas `*`-.p.q.hic)]
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((hard task:able) p.q.hic)
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?: (~(nest ut -:!>(*task:able)) | p.hic) q.hic
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~& [%behn-call-flub (@tas `*`-.q.hic)]
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((hard task:able) q.hic)
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==
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=^ mof tym
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?- -.q.hic
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$rest
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=. q.tym (~(put up q.tym) p.q.hic hen)
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=. tym (raze tym)
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[~ tym]
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::
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$wait
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=. p.tym (~(put up p.tym) p.q.hic hen)
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=. tym (raze tym)
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[~ tym]
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::
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$wake
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|- ^+ [*(list move) tym]
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=. tym (raze tym)
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?: =([~ ~] tym) [~ tym] :: XX TMI
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?: =(~ p.tym)
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~& %weird-wake [~ tym]
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=+ nex=~(get up p.tym)
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?: (lte now p.nex) [~ tym]
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=^ mof tym $(p.tym ~(pop up p.tym))
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[[`move`[q.nex %give %wake ~] mof] tym]
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::
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$wegh
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:_ tym :_ ~
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:^ hen %give %mass
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:- %behn
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:- %|
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:~ tym+[%& tym]
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==
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==
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[mof ..^$]
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::
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++ doze
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|= {now/@da hen/duct}
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^- (unit @da)
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?~ p.tym ~
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(some p:[~(get up p.tym)])
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::
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++ load
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|= old/{$0 tym/{clok clok}}
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^+ ..^$
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..^$(tym tym.old)
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::
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++ scry
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|= {fur/(unit (set monk)) ren/@tas why/shop syd/desk lot/coin tyl/path}
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^- (unit (unit cage))
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?. ?=($& -.why) ~
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=* who p.why
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=+ ^= liz
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|- ^- (list {@da duct})
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=. tym (raze tym)
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?~ p.tym ~
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[~(get up p.tym) $(p.tym ~(pop up p.tym))]
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[~ ~ %tank !>(>liz<)]
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::
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++ stay [%0 tym]
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++ take :: process move
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|= {tea/wire hen/duct hin/(hypo sign)}
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^+ [p=*(list move) q=..^$]
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!!
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--
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