anchor.diff:                                  match x with //замена l в соответствии с правилом x
                                   |ToBranch(a,b,c) -> b::c::ls
                                   |ToLeaf(a,b)     -> b.ToString()::ls
  -                             else
  -                                l::(newForm ls)
  +                             else l::(newForm ls)
                      |_     -> []
                   System.Console.Write(String.concat "" ("->"::(newForm current)))                   
                   sentForm (newForm current) xs
  
positive.code:                                                                        
  let recognitionTable (rules,_) (s:string) = 
             
     let recTable = Microsoft.FSharp.Collections.Array2D.create s.Length s.Length ([],(0,0),(0,0),[]) 
     //recTable(i,l), для l > 0
  
     let inline processRule rule i k l =
  
negative.code:    for rule in rules do
        for k in 0..(s.Length-1) do
           match rule with
           |ToLeaf(a,b) -> if b = s.[k] then
                              let nonTerminals,_,_,rules = recTable.[k,0]
                              recTable.[k,0] <- ((a::nonTerminals),(-1,-1),(-1,-1),(rule::rules))
           |_           -> ()
  