fpc/rtl/objpas/objpas.pp
2001-08-19 21:02:01 +00:00

372 lines
8.7 KiB
ObjectPascal

{
$Id$
This file is part of the Free Pascal run time library.
Copyright (c) 1999-2000 by the Free Pascal development team
This unit makes Free Pascal as much as possible Delphi compatible
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program 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.
**********************************************************************}
{$Mode ObjFpc}
{$I-}
{$ifndef Unix}
{$S-}
{$endif}
unit objpas;
interface
{ first, in object pascal, the integer type must be redefined }
const
MaxInt = MaxLongint;
type
integer = longint;
{****************************************************************************
Compatibility routines.
****************************************************************************}
{ Untyped file support }
Procedure AssignFile(Var f:File;const Name:string);
Procedure AssignFile(Var f:File;p:pchar);
Procedure AssignFile(Var f:File;c:char);
Procedure CloseFile(Var f:File);
{ Text file support }
Procedure AssignFile(Var t:Text;const s:string);
Procedure AssignFile(Var t:Text;p:pchar);
Procedure AssignFile(Var t:Text;c:char);
Procedure CloseFile(Var t:Text);
{ Typed file supoort }
Procedure AssignFile(Var f:TypedFile;const Name:string);
Procedure AssignFile(Var f:TypedFile;p:pchar);
Procedure AssignFile(Var f:TypedFile;c:char);
{ ParamStr should return also an ansistring }
Function ParamStr(Param : Integer) : Ansistring;
Type
TResourceIterator = Function (Name,Value : AnsiString; Hash : Longint) : AnsiString;
Function Hash(S : AnsiString) : longint;
Procedure ResetResourceTables;
Procedure SetResourceStrings (SetFunction : TResourceIterator);
Function ResourceStringTableCount : Longint;
Function ResourceStringCount(TableIndex : longint) : longint;
Function GetResourceStringName(TableIndex,StringIndex : Longint) : Ansistring;
Function GetResourceStringHash(TableIndex,StringIndex : Longint) : Longint;
Function GetResourceStringDefaultValue(TableIndex,StringIndex : Longint) : AnsiString;
Function GetResourceStringCurrentValue(TableIndex,StringIndex : Longint) : AnsiString;
Function SetResourceStringValue(TableIndex,StringIndex : longint; Value : Ansistring) : Boolean;
implementation
{****************************************************************************
Compatibility routines.
****************************************************************************}
{ Untyped file support }
Procedure AssignFile(Var f:File;const Name:string);
begin
System.Assign (F,Name);
end;
Procedure AssignFile(Var f:File;p:pchar);
begin
System.Assign (F,P);
end;
Procedure AssignFile(Var f:File;c:char);
begin
System.Assign (F,C);
end;
Procedure CloseFile(Var f:File);
begin
{ Catch Runtime error/Exception }
{$I+}
System.Close(f);
{$I-}
end;
{ Text file support }
Procedure AssignFile(Var t:Text;const s:string);
begin
System.Assign (T,S);
end;
Procedure AssignFile(Var t:Text;p:pchar);
begin
System.Assign (T,P);
end;
Procedure AssignFile(Var t:Text;c:char);
begin
System.Assign (T,C);
end;
Procedure CloseFile(Var t:Text);
begin
{ Catch Runtime error/Exception }
{$I+}
System.Close(T);
{$I-}
end;
{ Typed file supoort }
Procedure AssignFile(Var f:TypedFile;const Name:string);
begin
system.Assign(F,Name);
end;
Procedure AssignFile(Var f:TypedFile;p:pchar);
begin
system.Assign (F,p);
end;
Procedure AssignFile(Var f:TypedFile;c:char);
begin
system.Assign (F,C);
end;
Function ParamStr(Param : Integer) : Ansistring;
Var Len : longint;
begin
if (Param>=0) and (Param<argc) then
begin
Len:=0;
While Argv[Param][Len]<>#0 do
Inc(len);
SetLength(Result,Len);
If Len>0 then
Move(Argv[Param][0],Result[1],Len);
end
else
paramstr:='';
end;
{ ---------------------------------------------------------------------
ResourceString support
---------------------------------------------------------------------}
Type
PResourceStringRecord = ^TResourceStringRecord;
TResourceStringRecord = Packed Record
DefaultValue,
CurrentValue : AnsiString;
HashValue : longint;
Name : AnsiString;
end;
TResourceStringTable = Packed Record
Count : longint;
Resrec : Array[Word] of TResourceStringRecord;
end;
PResourceStringTable = ^TResourceStringTable;
TResourceTableList = Packed Record
Count : longint;
Tables : Array[Word] of PResourceStringTable;
end;
Var
ResourceStringTable : TResourceTablelist; External Name 'FPC_RESOURCESTRINGTABLES';
Function Hash(S : AnsiString) : longint;
Var thehash,g,I : longint;
begin
thehash:=0;
For I:=1 to Length(S) do { 0 terminated }
begin
thehash:=thehash shl 4;
inc(theHash,Ord(S[i]));
g:=thehash and longint($f shl 28);
if g<>0 then
begin
thehash:=thehash xor (g shr 24);
thehash:=thehash xor g;
end;
end;
If theHash=0 then
Hash:=Not(0)
else
Hash:=TheHash;
end;
Function GetResourceString(Const TheTable: TResourceStringTable;Index : longint) : AnsiString;[Public,Alias : 'FPC_GETRESOURCESTRING'];
begin
If (Index>=0) and (Index<TheTAble.Count) then
Result:=TheTable.ResRec[Index].CurrentValue
else
Result:='';
end;
(*
Function SetResourceString(Hash : Longint;Const Name : ShortString; Const Value : AnsiString) : Boolean;
begin
Hash:=FindIndex(Hash,Name);
Result:=Hash<>-1;
If Result then
ResourceStringTable.ResRec[Hash].CurrentValue:=Value;
end;
*)
Procedure SetResourceStrings (SetFunction : TResourceIterator);
Var I,J : longint;
begin
With ResourceStringTable do
For I:=0 to Count-1 do
With Tables[I]^ do
For J:=0 to Count-1 do
With ResRec[J] do
CurrentValue:=SetFunction(Name,DefaultValue,HashValue);
end;
Procedure ResetResourceTables;
Var I,J : longint;
begin
With ResourceStringTable do
For I:=0 to Count-1 do
With Tables[I]^ do
For J:=0 to Count-1 do
With ResRec[J] do
CurrentValue:=DefaultValue;
end;
Function ResourceStringTableCount : Longint;
begin
Result:=ResourceStringTable.Count;
end;
Function CheckTableIndex (Index: longint) : Boolean;
begin
Result:=(Index<ResourceStringTable.Count) and (Index>=0)
end;
Function CheckStringIndex (TableIndex,Index: longint) : Boolean;
begin
Result:=(TableIndex<ResourceStringTable.Count) and (TableIndex>=0) and
(Index<ResourceStringTable.Tables[TableIndex]^.Count) and (Index>=0)
end;
Function ResourceStringCount(TableIndex : longint) : longint;
begin
If not CheckTableIndex(TableIndex) then
Result:=-1
else
Result:=ResourceStringTable.Tables[TableIndex]^.Count;
end;
Function GetResourceStringName(TableIndex,StringIndex : Longint) : Ansistring;
begin
If not CheckStringIndex(Tableindex,StringIndex) then
Result:=''
else
result:=ResourceStringTable.Tables[TableIndex]^.ResRec[StringIndex].Name;
end;
Function GetResourceStringHash(TableIndex,StringIndex : Longint) : Longint;
begin
If not CheckStringIndex(Tableindex,StringIndex) then
Result:=0
else
result:=ResourceStringTable.Tables[TableIndex]^.ResRec[StringIndex].HashValue;
end;
Function GetResourceStringDefaultValue(TableIndex,StringIndex : Longint) : AnsiString;
begin
If not CheckStringIndex(Tableindex,StringIndex) then
Result:=''
else
result:=ResourceStringTable.Tables[TableIndex]^.ResRec[StringIndex].DefaultValue;
end;
Function GetResourceStringCurrentValue(TableIndex,StringIndex : Longint) : AnsiString;
begin
If not CheckStringIndex(Tableindex,StringIndex) then
Result:=''
else
result:=ResourceStringTable.Tables[TableIndex]^.ResRec[StringIndex].CurrentValue;
end;
Function SetResourceStringValue(TableIndex,StringIndex : longint; Value : Ansistring) : Boolean;
begin
Result:=CheckStringIndex(Tableindex,StringIndex);
If Result then
ResourceStringTable.Tables[TableIndex]^.ResRec[StringIndex].CurrentValue:=Value;
end;
Initialization
ResetResourceTables;
finalization
end.
{
$Log$
Revision 1.7 2001-08-19 21:02:02 florian
* fixed and added a lot of stuff to get the Jedi DX( headers
compiled
Revision 1.6 2001/08/01 21:43:11 peter
* generate error for closefile
Revision 1.5 2000/12/16 15:58:18 jonas
* removed warnings about possible range check errors
Revision 1.4 2000/11/13 14:41:20 marco
* Unix renamefest for defines
Revision 1.3 2000/07/14 10:33:10 michael
+ Conditionals fixed
Revision 1.2 2000/07/13 11:33:51 michael
+ removed logs
}