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procedure HexaStringToBinFile(const OutFileName: string; const HexaText: string); overload;
function LowCharCase(C: Char): Char;
asm
CMP AL,'A'
JB @@exit
CMP AL,'Z'
JA @@exit
SUB AL,'A' - 'a'
@@exit:
end;
var
HexaCleanText: string;
HexaBuffer: array of AnsiChar;
OutFile: file;
I, Count: Integer;
begin
AssignFile(OutFile, OutFileName);
Rewrite(OutFile, 1);
try
Count := 0;
SetLength(HexaCleanText, Length(HexaText));
ZeroMemory(@HexaCleanText[1], Length(HexaCleanText));
for I := 1 to Length(HexaText) do
begin
if CharInSet(HexaText[I], ['0'..'9', 'A'..'F', 'a'..'f']) then
begin
Inc(Count);
HexaCleanText[Count] := LowCharCase(HexaText[I]);
end;
end;
Count := Count div 2;
SetLength(HexaBuffer, Count);
HexToBin(PWideChar(@HexaCleanText[1]), PAnsiChar(@HexaBuffer[0]), Count);
BlockWrite(OutFile, HexaBuffer[0], Count);
finally
CloseFile(OutFile);
end;
end;
procedure HexaStringToBinFile(const OutFileName: string; const HexaText: string; Offset: Integer); overload;
function LowCharCase(C: Char): Char;
asm
CMP AL,'A'
JB @@exit
CMP AL,'Z'
JA @@exit
SUB AL,'A' - 'a'
@@exit:
end;
var
HexaCleanText: string;
HexaBuffer: array of AnsiChar;
OutFile: file;
I, Count: Integer;
begin
AssignFile(OutFile, OutFileName);
Reset(OutFile, 1);
try
Count := 0;
SetLength(HexaCleanText, Length(HexaText));
ZeroMemory(@HexaCleanText[1], Length(HexaCleanText));
for I := 1 to Length(HexaText) do
begin
if CharInSet(HexaText[I], ['0'..'9', 'A'..'F', 'a'..'f']) then
begin
Inc(Count);
HexaCleanText[Count] := LowCharCase(HexaText[I]);
end;
end;
Count := Count div 2;
SetLength(HexaBuffer, Count);
HexToBin(PWideChar(@HexaCleanText[1]), PAnsiChar(@HexaBuffer[0]), Count);
Seek(OutFile, Offset);
BlockWrite(OutFile, HexaBuffer[0], Count);
finally
CloseFile(OutFile);
end;
end;
function BinFileToHexaString(const InFileName: TFileName): string; overload;
var
FileStream: TFileStream;
MemoryStream: TBytesStream;
Buffer: TBytes;
begin
FileStream := TFileStream.Create(InFileName, fmOpenRead );
try
if FileStream.Size > 0 then
begin
MemoryStream := TBytesStream.Create();
try
MemoryStream.CopyFrom(FileStream, FileStream.Size);
MemoryStream.Position := 0;
SetLength(Buffer, FileStream.Size * 2);
BinToHex(MemoryStream.Bytes, 0, Buffer, 0, MemoryStream.Size);
Result := TEncoding.ANSI.GetString(Buffer);
finally
MemoryStream.Free;
end;
end;
finally
FileStream.Free;
end;
end;
function BinFileToHexaString(const InFileName: TFileName; Offset, Count: Integer): string; overload;
var
FileStream: TFileStream;
Buffer: AnsiString;
begin
FileStream := TFileStream.Create(InFileName, fmOpenRead );
try
if FileStream.Size >= Offset + Count then
begin
FileStream.Seek(Offset, soBeginning);
SetLength(Buffer, Count);
FileStream.Read(Buffer[1], Count);
SetLength(Result, Count * 2);
BinToHex(PAnsiChar(Buffer), PWideChar(Result), Count);
end;
finally
FileStream.Free;
end;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
HexaStringToBinFile('e.txt', 'FF AA 00 EE 99 12 34 56');
Edit1.Text := BinFileToHexaString('e.txt');
Edit2.Text := BinFileToHexaString('e.txt',3, 2);
HexaStringToBinFile('e.txt', '76 54', 3);
Edit3.Text := BinFileToHexaString('e.txt',3, 2);
Edit4.Text := BinFileToHexaString('e.txt');
end; |
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