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TextFile

package body Misc_Defs is

-- returns true if an nfa state has an epsilon out-transition slot
-- that can be used.  This definition is currently not used.

    function Free_Epsilon (State : in Integer) return Boolean is
    begin
        return ((Transchar (State) = Sym_Epsilon) and
                (Trans2 (State) = No_Transition) and
                (Finalst (State) /= State));
    end Free_Epsilon;

    -- returns true if an nfa state has an epsilon out-transition character
    -- and both slots are free

    function Super_Free_Epsilon (State : in Integer) return Boolean is
    begin
        return ((Transchar (State) = Sym_Epsilon) and
                (Trans1 (State) = No_Transition));
    end Super_Free_Epsilon;

    function Allocate_Integer_Array (Size : in Integer) return Int_Ptr is
    begin
        return new Unbounded_Int_Array (0 .. Size);
    end Allocate_Integer_Array;

    procedure Reallocate_Integer_Array
                 (Arr : in out Int_Ptr; Size : in Integer) is
        New_Arr : Int_Ptr;
    begin
        New_Arr := Allocate_Integer_Array (Size);
        New_Arr (0 .. Arr'Last) := Arr (0 .. Arr'Last);
        Arr := New_Arr;
    end Reallocate_Integer_Array;

    procedure Reallocate_State_Enum_Array
                 (Arr : in out State_Enum_Ptr; Size : in Integer) is
        New_Arr : State_Enum_Ptr;
    begin
        New_Arr := Allocate_State_Enum_Array (Size);
        New_Arr (0 .. Arr'Last) := Arr (0 .. Arr'Last);
        Arr := New_Arr;
    end Reallocate_State_Enum_Array;

    procedure Reallocate_Rule_Enum_Array
                 (Arr : in out Rule_Enum_Ptr; Size : in Integer) is
        New_Arr : Rule_Enum_Ptr;
    begin
        New_Arr := Allocate_Rule_Enum_Array (Size);
        New_Arr (0 .. Arr'Last) := Arr (0 .. Arr'Last);
        Arr := New_Arr;
    end Reallocate_Rule_Enum_Array;

    function Allocate_Int_Ptr_Array (Size : in Integer) return Int_Star_Ptr is
    begin
        return new Unbounded_Int_Star_Array (0 .. Size);
    end Allocate_Int_Ptr_Array;

    function Allocate_Rule_Enum_Array
                (Size : in Integer) return Rule_Enum_Ptr is
    begin
        return new Unbounded_Rule_Enum_Array (0 .. Size);
    end Allocate_Rule_Enum_Array;

    function Allocate_State_Enum_Array
                (Size : in Integer) return State_Enum_Ptr is
    begin
        return new Unbounded_State_Enum_Array (0 .. Size);
    end Allocate_State_Enum_Array;

    function Allocate_Boolean_Array (Size : in Integer) return Boolean_Ptr is
    begin
        return new Boolean_Array (0 .. Size);
    end Allocate_Boolean_Array;

    function Allocate_Vstring_Array (Size : in Integer) return Vstring_Ptr is
    begin
        return new Unbounded_Vstring_Array (0 .. Size);
    end Allocate_Vstring_Array;

    function Allocate_Dfaacc_Union (Size : in Integer) return Dfaacc_Ptr is
    begin
        return new Unbounded_Dfaacc_Array (0 .. Size);
    end Allocate_Dfaacc_Union;

    procedure Reallocate_Int_Ptr_Array
                 (Arr : in out Int_Star_Ptr; Size : in Integer) is
        New_Arr : Int_Star_Ptr;
    begin
        New_Arr := Allocate_Int_Ptr_Array (Size);
        New_Arr (0 .. Arr'Last) := Arr (0 .. Arr'Last);
        Arr := New_Arr;
    end Reallocate_Int_Ptr_Array;

    procedure Reallocate_Character_Array
                 (Arr : in out Char_Ptr; Size : in Integer) is
        New_Arr : Char_Ptr;
    begin
        New_Arr := Allocate_Character_Array (Size);
        New_Arr (0 .. Arr'Last) := Arr (0 .. Arr'Last);
        Arr := New_Arr;
    end Reallocate_Character_Array;

    procedure Reallocate_Vstring_Array
                 (Arr : in out Vstring_Ptr; Size : in Integer) is
        New_Arr : Vstring_Ptr;
    begin
        New_Arr := Allocate_Vstring_Array (Size);
        New_Arr (0 .. Arr'Last) := Arr (0 .. Arr'Last);
        Arr := New_Arr;
    end Reallocate_Vstring_Array;

    function Allocate_Character_Array (Size : in Integer) return Char_Ptr is
    begin
        return new Char_Array (0 .. Size);
    end Allocate_Character_Array;

    procedure Reallocate_Dfaacc_Union
                 (Arr : in out Dfaacc_Ptr; Size : in Integer) is
        New_Arr : Dfaacc_Ptr;
    begin
        New_Arr := Allocate_Dfaacc_Union (Size);
        New_Arr (0 .. Arr'Last) := Arr (0 .. Arr'Last);
        Arr := New_Arr;
    end Reallocate_Dfaacc_Union;

    procedure Reallocate_Boolean_Array
                 (Arr : in out Boolean_Ptr; Size : in Integer) is
        New_Arr : Boolean_Ptr;
    begin
        New_Arr := Allocate_Boolean_Array (Size);
        New_Arr (0 .. Arr'Last) := Arr (0 .. Arr'Last);
        Arr := New_Arr;
    end Reallocate_Boolean_Array;

    function Max (X, Y : in Integer) return Integer is
    begin
        if (X > Y) then
            return X;
        else
            return Y;
        end if;
    end Max;

    function Min (X, Y : in Integer) return Integer is
    begin
        if (X < Y) then
            return X;
        else
            return Y;
        end if;
    end Min;

end Misc_Defs;
-- Copyright (c) 1990 Regents of the University of California.
-- All rights reserved.
--
-- This software was developed by John Self of the Arcadia project
-- at the University of California, Irvine.
--
-- Redistribution and use in source and binary forms are permitted
-- provided that the above copyright notice and this paragraph are
-- duplicated in all such forms and that any documentation,
-- advertising materials, and other materials related to such
-- distribution and use acknowledge that the software was developed
-- by the University of California, Irvine.  The name of the
-- University may not be used to endorse or promote products derived
-- from this software without specific prior written permission.
-- THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
-- IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-- WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

-- TITLE miscellaneous definitions
-- AUTHOR: John Self (UCI)
-- DESCRIPTION contains all global variables used in aflex.
--             also some subprograms which are commonly used.
-- NOTES The real purpose of this file is to contain all miscellaneous
--       items (functions, MACROS, variables definitions) which were at the
--       top level of flex.
-- $Header: /co/ua/self/arcadia/alex/ada/RCS/misc_defsS.a,v 1.8 90/01/04 13:39:
-- 33 self Exp Locker: self $