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tcl.adb
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tcl.adb
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--------------------------------------------------------------------
--
-- tcl.adb --
--
-- Copyright (c) 1995-2000 Terry J. Westley
-- Copyright (c) 2008 O Kellogg
-- Copyright (c) 2006, 2008, 2009, 2014, 2019, 2021, 2022
-- Simon Wright <simon@pushface.org>
--
-- Tash is free software; you can redistribute it and/or modify it under
-- terms of the GNU General Public License as published by the Free
-- Software Foundation; either version 2, or (at your option) any later
-- version. Tash is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for more details. You should have received a copy of the GNU General
-- Public License distributed with Tash; see file COPYING. If not, write to
--
-- Free Software Foundation
-- 59 Temple Place - Suite 330
-- Boston, MA 02111-1307, USA
--
-- As a special exception, if other files instantiate generics from this
-- unit, or you link this unit with other files to produce an executable,
-- this unit does not by itself cause the resulting executable to be
-- covered by the GNU General Public License. This exception does not
-- however invalidate any other reasons why the executable file might be
-- covered by the GNU Public License.
--
-- Tash is maintained at http://tcladashell.sourceforge.net/.
--
--------------------------------------------------------------------
with Ada.Text_IO;
package body Tcl is
-- Some subprograms here correspond to C macros. C functions are
-- provided to invoke the macros. However, only Ada units can form
-- part of the public interface of the library, and what where
-- global symbols in the other units (including C units) are
-- converted to local symbols and hence not visible to callers.
--
-- So we have to call the C functions from Ada code, rather than
-- having pragma Import in the package spec.
procedure Tcl_IncrRefCount (objPtr : not null Tcl_Obj) is
procedure Tcl_CallIncrRefCount (objPtr : not null Tcl_Obj);
pragma Import (C, Tcl_CallIncrRefCount, "Tcl_CallIncrRefCount");
begin
Tcl_CallIncrRefCount (objPtr);
end Tcl_IncrRefCount;
procedure Tcl_DecrRefCount (objPtr : not null Tcl_Obj) is
procedure Tcl_CallDecrRefCount (objPtr : not null Tcl_Obj);
pragma Import (C, Tcl_CallDecrRefCount, "Tcl_CallDecrRefCount");
begin
Tcl_CallDecrRefCount (objPtr);
end Tcl_DecrRefCount;
function Tcl_IsShared (objPtr : not null Tcl_Obj) return C.int is
function Tcl_CallIsShared (objPtr : not null Tcl_Obj) return C.int;
pragma Import (C, Tcl_CallIsShared, "Tcl_CallIsShared");
begin
return Tcl_CallIsShared (objPtr);
end Tcl_IsShared;
function Tcl_GetHashValue
(HashEntry : not null Tcl_HashEntry)
return ClientData is
function Tcl_CallGetHashValue
(HashEntry : not null Tcl_HashEntry)
return ClientData;
pragma Import (C, Tcl_CallGetHashValue, "Tcl_CallGetHashValue");
begin
return Tcl_CallGetHashValue (HashEntry);
end Tcl_GetHashValue;
procedure Tcl_SetHashValue
(HashEntry : not null Tcl_HashEntry;
value : ClientData) is
procedure Tcl_CallSetHashValue
(HashEntry : not null Tcl_HashEntry;
value : ClientData);
pragma Import (C, Tcl_CallSetHashValue, "Tcl_CallSetHashValue");
begin
Tcl_CallSetHashValue (HashEntry, value);
end Tcl_SetHashValue;
function Tcl_GetHashKey
(HashTable : not null Tcl_HashTable;
HashEntry : not null Tcl_HashEntry)
return C.Strings.chars_ptr is
function Tcl_CallGetHashKey
(HashTable : not null Tcl_HashTable;
HashEntry : not null Tcl_HashEntry)
return C.Strings.chars_ptr;
pragma Import (C, Tcl_CallGetHashKey, "Tcl_CallGetHashKey");
begin
return Tcl_CallGetHashKey (HashTable, HashEntry);
end Tcl_GetHashKey;
function Tcl_FindHashEntry
(HashTable : not null Tcl_HashTable;
key : C.Strings.chars_ptr)
return Tcl_HashEntry is
function Tcl_CallFindHashEntry
(HashTable : not null Tcl_HashTable;
key : C.Strings.chars_ptr)
return Tcl_HashEntry;
pragma Import (C, Tcl_CallFindHashEntry, "Tcl_CallFindHashEntry");
begin
return Tcl_CallFindHashEntry (HashTable, key);
end Tcl_FindHashEntry;
function Tcl_CreateHashEntry
(HashTable : not null Tcl_HashTable;
key : C.Strings.chars_ptr;
newPtr : not null access C.int)
return Tcl_HashEntry is
function Tcl_CallCreateHashEntry
(HashTable : not null Tcl_HashTable;
key : C.Strings.chars_ptr;
newPtr : not null access C.int)
return Tcl_HashEntry;
pragma Import (C, Tcl_CallCreateHashEntry, "Tcl_CallCreateHashEntry");
begin
return Tcl_CallCreateHashEntry (HashTable, key, newPtr);
end Tcl_CreateHashEntry;
-- End of C macro interfaces.
procedure AppendStringsToObj
(objPtr : Tcl_Obj;
String1 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String2 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String3 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String4 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String5 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String6 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String7 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String8 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String9 : C.Strings.chars_ptr := C.Strings.Null_Ptr)
with
Import,
Convention => C_Variadic_1,
External_Name => "Tcl_AppendStringsToObj";
procedure Tcl_AppendStringsToObj
(objPtr : not null Tcl_Obj;
String1 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String2 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String3 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String4 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String5 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String6 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String7 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String8 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String9 : C.Strings.chars_ptr := C.Strings.Null_Ptr)
is
begin -- Tcl_AppendStringsToObj
AppendStringsToObj
(objPtr,
String1,
String2,
String3,
String4,
String5,
String6,
String7,
String8,
String9);
end Tcl_AppendStringsToObj;
procedure AppendResult
(interp : Tcl_Interp;
String1 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String2 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String3 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String4 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String5 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String6 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String7 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String8 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String9 : C.Strings.chars_ptr := C.Strings.Null_Ptr)
with
Import,
Convention => C_Variadic_1,
External_Name => "Tcl_AppendResult";
procedure Tcl_AppendResult
(interp : not null Tcl_Interp;
String1 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String2 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String3 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String4 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String5 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String6 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String7 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String8 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String9 : C.Strings.chars_ptr := C.Strings.Null_Ptr)
is
begin -- Tcl_AppendResult
AppendResult
(interp,
String1,
String2,
String3,
String4,
String5,
String6,
String7,
String8,
String9);
end Tcl_AppendResult;
procedure SetErrorCode
(interp : Tcl_Interp;
String1 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String2 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String3 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String4 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String5 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String6 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String7 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String8 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String9 : C.Strings.chars_ptr := C.Strings.Null_Ptr)
with
Import,
Convention => C_Variadic_1,
External_Name => "Tcl_SetErrorCode";
procedure Tcl_SetErrorCode
(interp : not null Tcl_Interp;
String1 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String2 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String3 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String4 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String5 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String6 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String7 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String8 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String9 : C.Strings.chars_ptr := C.Strings.Null_Ptr)
is
begin -- Tcl_SetErrorCode
SetErrorCode
(interp,
String1,
String2,
String3,
String4,
String5,
String6,
String7,
String8,
String9);
end Tcl_SetErrorCode;
function VarEval
(interp : Tcl_Interp;
String1 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String2 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String3 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String4 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String5 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String6 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String7 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String8 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String9 : C.Strings.chars_ptr := C.Strings.Null_Ptr)
return C.int
with
Import,
Convention => C_Variadic_1,
External_Name => "Tcl_VarEval";
function Tcl_VarEval
(interp : not null Tcl_Interp;
String1 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String2 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String3 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String4 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String5 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String6 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String7 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String8 : C.Strings.chars_ptr := C.Strings.Null_Ptr;
String9 : C.Strings.chars_ptr := C.Strings.Null_Ptr)
return C.int
is
begin -- Tcl_VarEval
return VarEval
(interp,
String1,
String2,
String3,
String4,
String5,
String6,
String7,
String8,
String9);
end Tcl_VarEval;
function Tcl_GetObjTypeName
(objPtr : Tcl_Obj) return C.Strings.chars_ptr is
begin
if objPtr = null or else objPtr.typePtr = null then
return C.Strings.Null_Ptr;
end if;
return objPtr.typePtr.name;
end Tcl_GetObjTypeName;
function Tcl_GetRefCount (objPtr : Tcl_Obj) return C.int is
begin
if objPtr = null then
return 0;
end if;
return objPtr.refCount;
end Tcl_GetRefCount;
procedure Tcl_PrintObj (Ptr : Tcl_Obj) is
begin
if Ptr = null then
Ada.Text_IO.Put ("NULL");
else
declare
Len : aliased C.int;
StringFromValue : constant C.Strings.chars_ptr
:= Tcl_GetStringFromObj (Ptr, Len'Access);
ObjTypeName : constant C.Strings.chars_ptr
:= Tcl_GetObjTypeName (Ptr);
RefCount : constant C.int := Tcl_GetRefCount (Ptr);
begin
Ada.Text_IO.Put
("s=""" & C.Strings.Value (StringFromValue) & """ " &
"t=" & C.Strings.Value (ObjTypeName) & " " &
"c=" & C.int'Image (RefCount));
end;
end if;
end Tcl_PrintObj;
end Tcl;