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2010-09-16 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.11 released.
* Added new option `-0' which produces a compression speed and
ratio comparable to those of `gzip -9'.
* fast_encoder.h fast_encoder.cc: New files.
* main.cc: Match length limit set by options -1 to -8 has been
reduced to extend range of use towards gzip. Lower numbers now
compress less but faster. (-1 now takes 43% less time for only
20% larger compressed size).
* encoder.cc: Compression of option -9 has been slightly increased.
* lziprecover.cc: Added new option "--merge" which tries to
produce a correct file merging the good parts of two or more
damaged copies.
* lziprecover.cc: Added new option "--repair" for repairing a
1-byte error in single-member files.
* decoder.cc (decode_member): Detect file errors earlier to
improve efficiency of lziprecover's new repair capability.
This change also prevents (harmless) access to uninitialized
memory when decompressing a corrupt file.
* lziprecover.cc: Added new option "--force".
* lziprecover.cc: Added new option "--output".
* lziprecover.cc: Added new option "--split" to select the until
now only operation of splitting multimember files.
* lziprecover.cc: If no operation is specified, warn the user
and do nothing.
* main.cc: Fixed warning about fchown's return value being ignored.
* decoder.cc: "-tvvvv" now also shows compression ratio.
* main.cc: Set stdin/stdout in binary mode on MSVC and OS2.
* New examples have been added to the manual.
* testsuite: "test1" renamed to "test.txt"
* Matchfinder types HC4 (4 bytes hash-chain) and HT4 (4 bytes
hash-table) have been tested and found no better than the
current BT4.
2010-04-05 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.10 released.
* decoder.h: Input_buffer integrated in Range_decoder.
* main.cc: File specified with option "-o" is now created with
mode 0666 if umask allows it, deleted if interrupted by user.
* main.cc: New constant "o_binary".
* main.cc: Dictionary size for options -2, -3, -4 and -8 has
been changed to improve linearity of compressed sizes.
* lzip.h: Fixed warnings produced by over-optimization (-O3).
* Makefile.in: Added quotes to directory names.
2010-01-17 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.9 released.
* main.cc (main): Return at least 1 if closing stdout fails.
* Makefile.in: Added "--name" option to help2man invocation.
* testsuite/check.sh: Use "test1" instead of "COPYING" for testing.
2009-09-02 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.8 released.
* Compression time has been reduced by 4%.
* Lzdiff and lzgrep have been moved to the new package zutils.
* Fixed warnings on sistems where uint32_t != unsigned int.
2009-06-25 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.7 released.
* decoder.h (copy_block): Fixed memcpy overlap introduced in 1.6.
2009-06-22 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.6 released.
* Decompression time has been reduced by 17%.
* Added decompression support for Sync Flush marker.
* Added support for .tbz extension to lzdiff and lzgrep.
* Added man pages for lzdiff, lzgrep and lziprecover.
* encoder.cc (Matchfinder): Reduce memory use to 9x if input file
is smaller than dictionary size limit.
* decoder.cc: Added extra flush calls to improve partial
decompression of corrupt files.
* "--test" no more needs "/dev/null".
* Removed some "bashisms" from lzdiff and lzgrep.
* Dictionary size for options "-1" to "-4" has been changed.
* main.cc (signal_handler): Declared as `extern "C"'.
* Makefile.in: Extra files are now installed by default.
* testsuite/check.sh: Test lziprecover.
* Added "export LC_ALL=C" to all scripts.
2009-04-12 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.5 released.
* lzip.h: Coded dictionary size implemented in File_header.
* Fixed some includes that prevented compilation with GCC 4.4.
* "member_size" and "volume_size" are now accurate limits.
* Compression speed has been improved.
* Implemented bt4 type matchfinder.
* Added chapter "Algorithm" to the manual.
* Lzdiff and lzgrep now accept "-h" for "--help" and
"-V" for "--version".
* Makefile.in: Man page is now installed by default.
* testsuite/check.sh: Verify that files are open in binary mode.
2009-01-24 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.4 released.
* Implemented compression of version 1 files.
* Added new option "--member-size".
* Added new option "--volume-size".
* Added new option "--output".
* main.cc: Read from non regular files if "--stdout" is specified.
* Added "lziprecover", a member recoverer program.
* testsuite/unzcrash.cc: Test all 1-byte errors.
2008-12-21 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.3 released.
* This version automatically chooses the smallest possible
dictionary size for each file during compression, saving
memory during decompression.
* Implemented decompression of version 1 files.
* testsuite/check.sh: Replaced "diff -q" with "cmp".
2008-12-10 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.2 released.
* encoder.cc: A 1-byte read outside allocated memory has been fixed.
* lzip.h: Dictionary size limit has been reduced to 512MiB because
setting it to 1GiB causes overflow of a 32 bit integer.
* Added "lzdiff", a diff/cmp wrapper for gzip, bzip2, lzip and
non-compressed files.
* Added "lzgrep", a grep wrapper for gzip, bzip2, lzip and
non-compressed files.
* "make install-info" should now work on Debian and OS X.
2008-11-17 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.1 released.
* Changed short name of option "--dictionary-size" to "-s".
* Changed short name of option "--match-length" to "-m".
* Changed LONG_LONG_MAX to LLONG_MAX.
2008-10-14 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 1.0 released.
* "-tvv" shows file version and dictionary size.
2008-09-30 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 0.5 released.
* Decompression is now 1% faster.
2008-09-23 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 0.4 released.
* Code cleanup for global variable "verbosity".
* Regained the compression ratio of 0.2 with 5% faster speed.
* Fixed compilation on sistems where size_t != unsigned int.
2008-09-15 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 0.3 released.
* encoder.cc: Compression is now 15% faster, 1% worse.
* main.cc (main): Make "-t" option override "-c".
* main.cc (decompress): Show "done" instead of "ok" when not testing.
* encoder.h: Use trials[] to return the list of pairs.
2008-09-09 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 0.2 released.
* encoder.cc: Small improvements in compression speed.
* Small documentation changes.
2008-08-20 Antonio Diaz Diaz <ant_diaz@teleline.es>
* Version 0.1 released.
Copyright (C) 2008, 2009, 2010 Antonio Diaz Diaz.
This file is a collection of facts, and thus it is not copyrightable,
but just in case, you have unlimited permission to copy, distribute and
modify it.
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