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A simple Pascal like language has only three statements.

  1. assignment statement e.g. x:=expression
  2. loop construct e.g. for i:=expression to expression do statement
  3. sequencing e.g. begin statement ;…; statement end
  1. Write a context-free grammar (CFG) for statements in the above language. Assume that expression has already been defined. Do not use optional parenthesis and * operator in CFG.
  2. Show the parse tree for the following statements:
    for j:=2 to 10 do
    begin 
        x:=expr1;
        y:=expr2;
    end
asked in Compiler Design by Veteran (52k points) | 307 views

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