GitHub - ipr/qLhaLib: Library in Qt&C++ to handle LhA-archives

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Name		Name	Last commit message	Last commit date
Latest commit History 80 Commits
AnsiFile.cpp		AnsiFile.cpp
AnsiFile.h		AnsiFile.h
FilemodeFlags.h		FilemodeFlags.h
FiletimeHelper.h		FiletimeHelper.h
GenericTime.h		GenericTime.h
Huffman.cpp		Huffman.cpp
Huffman.h		Huffman.h
LhArchive.cpp		LhArchive.cpp
LhArchive.h		LhArchive.h
LhDecoder.cpp		LhDecoder.cpp
LhDecoder.h		LhDecoder.h
LhExtract.cpp		LhExtract.cpp
LhExtract.h		LhExtract.h
LhHeader.cpp		LhHeader.cpp
LhHeader.h		LhHeader.h
LhaTypeDefs.h		LhaTypeDefs.h
README.txt		README.txt
bugs.txt		bugs.txt
crcio.cpp		crcio.cpp
crcio.h		crcio.h
qLhA.pro		qLhA.pro
qLhA_global.h		qLhA_global.h
qlhalib.cpp		qlhalib.cpp
qlhalib.h		qlhalib.h

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Reusable library in Qt&C++ for LhA-archive support.

Author: Ilkka Prusi
Contact: [email protected]

Based on Unix LHa 1.14i (lha-1.14i-ac20040929),
autoconfiscated version.

See: http://lha.sourceforge.jp/
and: http://www2m.biglobe.ne.jp/~dolphin/lha/lha-unix.htm
Also: http://homepage1.nifty.com/dangan/en/Content/Program/Java/jLHA/Notes/Notes.html
Original ANSI-C sources also in: http://gnuwin32.sourceforge.net/packages/lha.htm

qLhaLib is a Qt-DLL based on based on lha-1.14i-ac20040929.
qLhaLib should be relatively easily reusable on most platforms where Qt can be compiled
(with differences regarding compilers..).

lha-1.14i-ac20040929 copyrights:
 LHarc    for UNIX  V 1.02  Copyright(C) 1989  Y.Tagawa
 LHx      for MSDOS V C2.01 Copyright(C) 1990  H.Yoshizaki
 LHx(arc) for OSK   V 2.01  Modified     1990  Momozou
 LHa      for UNIX  V 1.00  Copyright(C) 1992  Masaru Oki
 LHa      for UNIX  V 1.14  Modified     1995  Nobutaka Watazaki
 LHa      for UNIX  V 1.14i Modified     2000  Tsugio Okamoto
                    Autoconfiscated 2001-2004  Koji Arai
qLhaLib copyright(c) 2011 Ilkka Prusi

This is free software. 
You can use, distribute and/or modify this software and source code free-of-charge.
No warranties. Copyrights should remain.

How is this different from original implementation?
* First, no need for console input/output (GUI-apps, code libraries..)
* Compiles on newer C++ compilers (see notes in qlhalib.h)
* Hopefully easier to read/follow/debug/extend..?
* Buffering/file-IO changes, should be more efficient now
 - prefer larger chunks instead of single byte read/write
* No conversion of text-file encoding: all files handled as "binary blobs" as-is
 - if there is need to change encoding there are tons of other tools for it already..
 - codec for pathname encoding can be set but that's it

Status:
* Should be working now, no bugs known currently
* Fixed pathname conversion to Unicode/QString
* Added support for Amiga-style file comments (NULL-terminator within filename in archive)
* Suppors LhA and Lzh packing methods: -lh0- .. -lh7-, -lhd-, -lzs-, -lz4-, -lz5-

Future plans?
* Joe Jared extensions? (packing methods)
 ** -lh8- -lh9- -lha- -lhb- -lhc- -lhe-
* LArc extensions? (packing methods)
 ** -lz7- -lz8- -lz2- -lz3-
* CP/M variations? (packing methods)
 ** -pc1- -pm?-
* other features?
* extended-header types?