String komprimieren dekomprimieren

[SleepyMaster]

Delphi-Quellcode:

uses 
  ZLib; 

function CompressString(input:string):string; 
var 
  InpBuf, OutBuf: Pointer; 
  OutBytes: Integer; 
begin 
  InpBuf := nil; 
  OutBuf := nil; 
  try 
    GetMem(InpBuf, Length(input)); 
    Move(input[1], InpBuf^, Length(input)); 
    CompressBuf(InpBuf, Length(input), OutBuf, OutBytes); 
    SetLength(result,OutBytes); 
    Move(OutBuf^, result[1], OutBytes); 
  finally 
    if InpBuf <> nil then FreeMem(InpBuf); 
    if OutBuf <> nil then FreeMem(OutBuf); 
  end; 
end; 

function DeCompressString(input:string):string; 
var 
  InpBuf, OutBuf: Pointer; 
  OutBytes: Integer; 
begin 
  InpBuf := nil; 
  OutBuf := nil; 
  try 
    GetMem(InpBuf, Length(input)); 
    Move(input[1], InpBuf^, Length(input)); 
    DeCompressBuf(InpBuf, Length(input),0,OutBuf, OutBytes); 
    SetLength(result,OutBytes); 
    Move(OutBuf^, result[1], OutBytes); 
  finally 
    if InpBuf <> nil then FreeMem(InpBuf); 
    if OutBuf <> nil then FreeMem(OutBuf); 
  end; 
end;