Hi all,

I have a lot of byte arrays which contains mostly text but also #0. I am looking for functions to manipulate these arrays.

The stuff in strutils are mainly what I need but they operate on strings which is not usable to me due to the #0. Are there any such functions in FPC?

And while I am onto strings...does anyone know of a quick and easy way
to convert strings to a byte array. Much like aPchar := PChar(aString)?

Thanks
Wimpie

AnsiString does not have problems with #0.

Test:

var aStr:AnsiString;
begin
aStr:='test-test-test';
aStr:=StringReplace(aStr,'-',#0,[rfReplaceAll]);
//if you ouput now, you'll only see 'test'...
aStr:=StringReplace(aStr,#0,'-',[rfReplaceAll]);
//...but the text is still in the String;
Edit1.text:=aStr;
end;

Thanks. I tested it and it works.

The reference manual is a bit confusing though:
"Ansistrings are strings that have no length limit. They are reference counted and null terminated."

"i.e. a variable of type PChar is a pointer that points to an array of type Char, which is ended by a null-character (#0). "

The above quotes does not agree with the code above, which makes discovering this info a bit difficult.

Hi there,

I have a ByteArray unit that's pretty extensive.

function toString(Var Item:TByteArray):string
var
  iLen:Integer;
begin
  iLen:=System.Length(Item);
  SetLength(Result,iLen);
  if iLen>0 then
    System.Move(Item[0],Result[1],iLen);
end;

Thanks, this will be a useful function.