PV_Unpacker - simple pure Pascal library to unpack various archives (ZIP, RAR, LZMA, TAR...)

See also: https://github.com/PascalVault/Lazarus_Packer

• .ZIP, .JAR, .CBZ, .DOCX (store, deflate, lzma, bzip2)
• .RAR, .CBR (version 4 and 5; store)
• .TAR, .CBT
• .ARJ (store, methods: 1-3)
• .LZH, .LHA (store, lh1, lh4, lh5, lh6, lh7, lhx)
• .ZOO (store, lzh)
• .AR (store, lh4, lh5)
• BlackHole .BH (store, deflate)
• .BIG
• BGA .BZA/.GZA
• .CPIO
• .DPK
• .DRS
• .FTG
• .GZIP, .GZ
• .BZIP2, .BZ2
• .HA
• .LBR
• .LZ, .LZMA
• .PCK
• Homm3 .LOD
• Quake .PAK
• Doom .WAD
• Quake .WAD and more!

• encrypted ZIP, RAR archives
• RAR files that use method different than "store"
• ARJ files that use method "fastest"

• progress bar
• integrity verification

use PV_Unpacker;
...
var Unp: TUnpacker;
begin
  Unp := TUnpacker.Create(OpenDialog1.Filename);

  if Unp.GetFormat = '' then ShowMessage('Unsupported');

  for i:=0 to Unp.Count-1 do begin
    Memo1.Lines.Add('name ' + Unp.GetName(i) + ', crc ' + IntToHex( Unp.GetCRC(i)) + ', date ' +  DateToStr(Unp.GetDate(i)) + ', packed size ' + IntToStr(Unp.GetPackedSize(i)) );
    if Unp.CanUnpack(i) then Unp.Extract(i, Unp.GetName(i) );        
  end;
  Unp.Free;
end;