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Annotation of 43BSD/contrib/icon/book/16/ldag.icn, revision 1.1

1.1     ! root        1: procedure ldag(stree,done)
        !             2:    local a
        !             3:    /done := table()            # start table
        !             4:                                # return list if done
        !             5:    if a := \done[stree] then return a
        !             6:    stree ?                     # build like a tree
        !             7:       if a := [tab(upto('('))] then {
        !             8:          move(1)
        !             9:          while put(a,ldag(tab(bal(',)')),done)) do
        !            10:             move(1)
        !            11:          }
        !            12:       else a := [tab(0)]
        !            13:    return done[stree] := a     # put in table
        !            14: end

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