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LANGUAGE OS.iso
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ell.lha
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Nullable.md
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1992-08-18
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375b
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25 lines
(*
* ell2 - a redesign of ell
*
* $RCSfile: Nullable.md,v $
*
* purpose: check nullability of the nonterminals
*
* $Author: grosch $
* $Date: 1991/02/06 16:15:59 $
*)
DEFINITION MODULE Nullable;
FROM Idents IMPORT tIdent;
PROCEDURE TestNullable;
PROCEDURE IsNullable (Nonterm: tIdent): BOOLEAN;
(* NULL_ *)
PROCEDURE WriteNullables;
(* _NULL *)
END Nullable.