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# 22mar12abu
# (c) Software Lab. Alexander Burger
# (select [var ..] cls [hook|T] [var val ..])
(de select Lst
(let
(Vars
(make
(until
(or
(atom Lst)
(and
(sym? (car Lst))
(= `(char "+") (char (car Lst))) ) )
(link (pop 'Lst)) ) )
Cls (pop 'Lst)
Hook (cond
((ext? (car Lst)) (pop 'Lst))
((=T (car Lst)) (pop 'Lst) *DB) ) )
(default Lst
(cons
(or
(car Vars)
(and
(find
'((X) (isa '(+Need +index) (car X)))
(getl Cls) )
(get (car @) 'var) )
(cdr
(maxi caar
(getl (get (or Hook *DB) Cls)) ) ) ) ) )
(let Q
(goal
(cons
(make
(link
'select
'(@@)
(make
(for (L Lst L)
(link
(make
(link (pop 'L) Cls)
(and Hook (link Hook))
(link (if L (pop 'L) '(NIL . T))) ) ) ) ) )
(while Lst
(let (Var (pop 'Lst) Val (if Lst (pop 'Lst) '(NIL . T)))
(link
(list
(cond
((pair Val) 'range)
((or (num? Val) (ext? Val)) 'same)
((=T Val) 'bool)
((isa '(+Fold +Idx) (get Cls Var)) 'part)
((isa '+Fold (get Cls Var)) 'fold)
((isa '+Sn (get Cls Var)) 'tolr)
(T 'head) )
Val '@@ Var ) ) ) ) ) ) )
(use Obj
(loop
(NIL (setq Obj (cdr (asoq '@@ (prove Q)))))
(ifn Vars
(show Obj)
(for Var Vars
(cond
((pair Var)
(print (apply get Var Obj)) )
((meta Obj Var)
(print> @ (get Obj Var)) )
(T (print (get Obj Var))) )
(space) )
(print Obj) )
(T (line) Obj) ) ) ) ) )
(dm (print> . +relation) (Val)
(print Val) )
(dm (print> . +Number) (Val)
(prin (format Val (: scl))) )
(dm (print> . +Date) (Val)
(print (datStr Val)) )
# (update 'obj ['var])
(de update (Obj Var)
(let *Dbg NIL
(printsp Obj)
(if Var
(_update (get Obj Var) Var)
(set!> Obj
(any (revise (sym (val Obj)))) )
(for X (getl Obj)
(_update (or (atom X) (pop 'X)) X) ) )
Obj ) )
(de _update (Val Var)
(printsp Var)
(let New
(if (meta Obj Var)
(revise> @ Val)
(any (revise (sym Val))) )
(unless (= New Val)
(if (mis> Obj Var New)
(quit "mismatch" @)
(put!> Obj Var New) ) ) ) )
(dm (revise> . +relation) (Val)
(any (revise (sym Val))) )
(dm (revise> . +Bag) (Lst)
(mapcar
'((V B) (space 6) (revise> B V))
(any (revise (sym Lst)))
(: bag) ) )
(dm (revise> . +Number) (Val)
(format
(revise (format Val (: scl)))
(: scl) ) )
(dm (revise> . +Date) (Val)
(expDat
(revise
(datStr Val)
'((S) (list (datStr (expDat S)))) ) ) )
(dm (revise> . +List) (Val)
(mapcar
'((X) (space 3) (extra X))
(any (revise (sym Val))) ) )
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