home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.compression.research
- Path: sparky!uunet!cs.utexas.edu!sun-barr!sh.wide!wnoc-kyo!kuis!kudpc!nucc!g44140g
- From: g44140g@nucc.cc.nagoya-u.ac.jp (Haruhiko Okumura)
- Subject: Re: improvements to lha
- Message-ID: <1993Jan22.013145.1063@nucc.cc.nagoya-u.ac.jp>
- Sender: g44140g@nucc.cc.nagoya-u.ac.jp (Haruhiko Okumura)
- Organization: Matsusaka University, Matsusaka, Japan.
- Date: Fri, 22 Jan 1993 01:31:45 GMT
- Lines: 24
-
- Thanks for the many ideas to improve LHA. I'm aware that hashing will
- make LHA faster. In fact there was an archiver (before ARJ and ZIP),
- written by a Japanese (in Z80 assembler!), that mimicked LHA's
- algorithm but used hashing.
-
- As Dan Halem has mentioned, the idea by Leonid A. Broukhis reminded me
- of Bender and Wolf, IEEE IT 37, 721-729 (1991). This should improve
- compression, but is probably rather slow.
-
- I received several emails asking the status of LHA in Japan. LHA 2.13
- is still the de fact standard archiver here. It won the first Free
- Software Grand Prix of Japan last year. Yoshi (the author of LHA) has
- written several minor revisions. I think 2.56a1 is the latest one,
- This particular version tries to cope with NetWare file sharing. But
- its algorithm is the same as LHA 2.13. Some of the previous test
- versions were compiled under DOS extender with larger dictionary
- sizes. They were very very slow.
-
- It's high time Yoshi rewrote his archiver, but he's too busy (and so
- am I). We need your help.
-
- Haruhiko Okumura (g44140g@nucc.cc.nagoya-u.ac.jp)
- Matsusaka University, 1846 Kubo-cho, Matsusaka 515 Japan
-
-