summaryrefslogtreecommitdiffstats
path: root/README
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2019-01-04 10:58:08 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2019-01-04 10:58:08 +0000
commit14424b83ce5966bf2a6be5d2496c7570f50e8bdd (patch)
treedfbce56c33525cf91ab18561b173bba7ecc60eb5 /README
parentReleasing debian version 1.9-3. (diff)
downloadpdlzip-14424b83ce5966bf2a6be5d2496c7570f50e8bdd.tar.xz
pdlzip-14424b83ce5966bf2a6be5d2496c7570f50e8bdd.zip
Merging upstream version 1.10.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'README')
-rw-r--r--README38
1 files changed, 20 insertions, 18 deletions
diff --git a/README b/README
index 517adcf..6c29e49 100644
--- a/README
+++ b/README
@@ -1,17 +1,21 @@
Description
-Pdlzip is a lossless data compressor with a user interface similar to
-the one of lzip, bzip2 or gzip.
+Pdlzip is a permissively licensed implementation of the lzip data
+compressor, intended for those who can't distribute (or even use) GPL
+licensed Free Software. (The name of pdlzip comes from 'public domain
+lzip'). Pdlzip is written in C and is (hope)fully compatible with lzip 1.4
+or newer.
-Pdlzip uses the lzip file format; the files produced by pdlzip are
-(hope)fully compatible with lzip-1.4 or newer. Pdlzip is in fact a
-permissively licensed implementation of the lzip data compressor,
-intended for those who can't distribute (or even use) GPL licensed Free
-Software. (The name of pdlzip comes from "public domain lzip").
+Lzip is a lossless data compressor with a user interface similar to the
+one of gzip or bzip2. Lzip can compress about as fast as gzip (lzip -0)
+or compress most files more than bzip2 (lzip -9). Decompression speed is
+intermediate between gzip and bzip2. Lzip is better than gzip and bzip2
+from a data recovery perspective. Lzip has been designed, written and
+tested with great care to replace gzip and bzip2 as the standard
+general-purpose compressed format for unix-like systems.
-The lzip file format is designed for data sharing and long-term
-archiving, taking into account both data integrity and decoder
-availability:
+The lzip file format is designed for data sharing and long-term archiving,
+taking into account both data integrity and decoder availability:
* The lzip format provides very safe integrity checking and some data
recovery means. The lziprecover program can repair bit flip errors
@@ -20,11 +24,11 @@ availability:
merging of damaged copies of a file.
* The lzip format is as simple as possible (but not simpler). The
- lzip manual provides the source code of a simple decompressor along
- with a detailed explanation of how it works, so that with the only
- help of the lzip manual it would be possible for a digital
- archaeologist to extract the data from a lzip file long after
- quantum computers eventually render LZMA obsolete.
+ lzip manual provides the source code of a simple decompressor
+ along with a detailed explanation of how it works, so that with
+ the only help of the lzip manual it would be possible for a
+ digital archaeologist to extract the data from a lzip file long
+ after quantum computers eventually render LZMA obsolete.
* Additionally the lzip reference implementation is copylefted, which
guarantees that it will remain free forever.
@@ -40,8 +44,6 @@ If you keep any lzma-alone files, it is advisable to recompress them to
lzip format. Lziprecover can convert some lzma-alone files to lzip format
without recompressing.
-Pdlzip is written in C.
-
Pdlzip includes public domain (de)compression code from the LZMA SDK
(Software Development Kit) written by Igor Pavlov.
@@ -52,7 +54,7 @@ users of the most non-free platforms can share lzip files with everybody
else.
-Copyright (C) 2010-2018 Antonio Diaz Diaz.
+Copyright (C) 2010-2019 Antonio Diaz Diaz.
This file is free documentation: you have unlimited permission to copy,
distribute and modify it.