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Lzip was written by Antonio Diaz Diaz.
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The ideas embodied in lzip are due to (at least) the following people:
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Abraham Lempel and Jacob Ziv (for the LZ algorithm), Andrei Markov (for the
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definition of Markov chains), G.N.N. Martin (for the definition of range
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encoding), Igor Pavlov (for putting all the above together in LZMA), and
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Julian Seward (for bzip2's CLI).
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2024-01-26 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.24 released.
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* New options '--empty-error' and '--marking-error'.
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* main.cc: Reformat file diagnostics as 'PROGRAM: FILE: MESSAGE'.
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(show_option_error): New function showing argument and option name.
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(main): Make -o preserve date/mode/owner if 1 input file.
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(open_outstream): Create missing intermediate directories.
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* lzip.h: Rename verify_* to check_*.
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* configure, Makefile.in: New variable 'MAKEINFO'.
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* testsuite: New test files fox6.lz, fox6_mark.lz.
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2022-01-24 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.23 released.
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* Decompression time has been reduced by 5-12% depending on the file.
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* main.cc (getnum): Show option name and valid range if error.
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* Improve several descriptions in manual, '--help', and man page.
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* lzip.texi: Change GNU Texinfo category to 'Compression'.
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(Reported by Alfred M. Szmidt).
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2021-01-04 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.22 released.
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* main.cc (main): Report an error if a file name is empty.
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Make '-o' behave like '-c', but writing to file instead of stdout.
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Make '-c' and '-o' check whether the output is a terminal only once.
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Do not open output if input is a terminal.
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* configure: Build, check, and install without 'make'.
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* Replace 'decompressed', 'compressed' with 'out', 'in' in output.
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* lzip_index.cc: Improve messages for corruption in last header.
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* main.cc: Set a valid invocation_name even if argc == 0.
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* Document extraction from tar.lz in manual, '--help', and man page.
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* lzip.texi (Introduction): Mention plzip and tarlz as alternatives.
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* lzip.texi: Several fixes and improvements.
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* testsuite: Add 9 new test files.
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2019-01-03 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.21 released.
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* Rename File_* to Lzip_*.
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* lzip.h (Lzip_trailer): New function 'verify_consistency'.
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* lzip_index.cc: Detect some kinds of corrupt trailers.
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* main.cc (main): Check return value of close( infd ).
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* main.cc: Compile on DOS with DJGPP.
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* Fix a GCC warning about catching std::bad_alloc by value.
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* lzip.texi: Improve description of '-0..-9', '-m', and '-s'.
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* configure: Accept appending to CXXFLAGS; 'CXXFLAGS+=OPTIONS'.
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* INSTALL: Document use of CXXFLAGS+='-D __USE_MINGW_ANSI_STDIO'.
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2018-02-11 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.20 released.
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* New option '--loose-trailing'.
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* Improve corrupt header detection to HD=3.
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* main.cc: Show corrupt or truncated header in multimember file.
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* main.cc (main): Option '-S, --volume-size' now keeps input files.
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* encoder_base.*: Adjust dictionary size for each member.
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* Replace 'bits/byte' with inverse compression ratio in output.
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* Show progress of decompression at verbosity level 2 (-vv).
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* Show progress of (de)compression only if stderr is a terminal.
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* main.cc: Show final diagnostic when testing multiple files.
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* main.cc: Do not add a second extension '.lz' to the arg of '-o'.
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* decoder.cc (verify_trailer): Show stored sizes also in hex.
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Show dictionary size at verbosity level 4 (-vvvv).
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* lzip.texi: New chapter 'Meaning of lzip's output'.
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2017-04-13 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.19 released.
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* The option '-l, --list' has been ported from lziprecover.
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* Don't allow mixing different operations (-d, -l or -t).
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* Compression time of option '-0' has been slightly reduced.
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* Decompression time has been reduced by 2%.
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* main.cc: Continue testing if any input file is a terminal.
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* main.cc: Show trailing data in both hexadecimal and ASCII.
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* encoder.cc (Matchfinder_base): Check the size passed to new.
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* lzip_index.cc: Improve detection of bad dict and trailing data.
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* lzip.h: Unify messages for bad magic, trailing data, etc.
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2016-05-14 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.18 released.
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* New option '-a, --trailing-error'.
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* Decompression time has been reduced by 2%.
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* decoder.cc (verify_trailer): Remove test of final code.
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* main.cc (main): Delete '--output' file if infd is a terminal.
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* main.cc (main): Don't use stdin more than once.
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* Remove decompression support for version 0 files.
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* lzip.texi: New chapter 'Trailing data'.
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* configure: Avoid warning on some shells when testing for g++.
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* Makefile.in: Detect the existence of install-info.
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* check.sh: A POSIX shell is required to run the tests.
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* check.sh: Don't check error messages.
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2015-07-12 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.17 released.
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* Reorganization of the compression code.
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* lzip.texi: New chapter 'Quality assurance'.
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* Makefile.in: New targets 'install*-compress'.
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2014-08-26 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.16 released.
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* Compression ratio of option '-9' has been slightly increased.
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* Compression time has been reduced by 4%.
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* Compression time of option '-0' has been reduced by 2%.
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* main.cc (close_and_set_permissions): Behave like 'cp -p'.
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* Minor improvements.
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* lzip.texinfo: Rename to lzip.texi.
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* Change license to GPL version 2 or later.
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2013-09-20 Antonio Diaz Diaz <antonio@gnu.org>
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* Version 1.15 released.
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* Show progress of compression at verbosity level 2 (-vv).
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* main.cc (show_header): Don't show header version.
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* Ignore option '-n, --threads' for compatibility with plzip.
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* configure: Options now accept a separate argument.
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* lzip.texinfo: New chapter 'Stream format' and appendix
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'Reference source code'.
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2013-02-17 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.14 released.
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* Multi-step trials have been implemented.
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* Compression ratio has been slightly increased.
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* Compression time has been reduced by 5%.
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* Decompression time has been reduced by 12%.
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* Makefile.in: New target 'install-bin'.
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* main.cc: Use 'setmode' instead of '_setmode' on Windows and OS/2.
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* main.cc: Define 'strtoull' to 'std::strtoul' on Windows.
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2012-02-24 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.13 released.
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* Lziprecover has been moved to its own package.
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* main.cc (close_and_set_permissions): Inability to change output
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file attributes has been downgraded from error to warning.
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* Compression time of option '-0' has been reduced by 2%.
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* Reorganization of the compression code.
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* Small change in '--help' output and man page.
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* Change quote characters in messages as advised by GNU Standards.
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* configure: Rename 'datadir' to 'datarootdir'.
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* 'unzcrash.cc' has been moved to package 'lziprecover'.
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2011-04-30 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.12 released.
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* New option '-F, --recompress'.
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* encoder.h (update_prices): Update high length symbol prices
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independently of the value of 'pos_state'. This gives better
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compression for large values of '--match-length' without being
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slower.
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* encoder.h, encoder.cc: Optimize pair price calculations, reducing
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compression time for large values of '--match-length' by up to 6%.
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* Compression time of option '-0' has been reduced by 2%.
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* main.cc (decompress): Print only one status line for each
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multimember file when only one '-v' is specified.
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* main.cc (decompress): Print up to 6 bytes of trailing data when
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'-vvvv' is specified.
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* main.cc (open_instream): Don't show the message
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" and '--stdout' was not specified" for directories, etc.
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* lziprecover.cc: If '-v' is not specified show errors only.
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* unzcrash.cc: Use Arg_parser.
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* unzcrash.cc: New options '-b, --bits', '-p, --position', and
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'-s, --size'.
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2010-09-16 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.11 released.
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* New option '-0', which produces a compression speed and ratio
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comparable to those of 'gzip -9'.
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* fast_encoder.h, fast_encoder.cc: New files.
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* main.cc: Match length limit set by options -1 to -8 has been
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reduced to extend range of use towards gzip. Lower numbers now
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compress less but faster. (-1 now takes 43% less time for only 20%
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larger compressed size).
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Exit with status 1 if any output file exists and is skipped.
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* Compression ratio of option '-9' has been slightly increased.
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* lziprecover.cc: New option '-m, --merge', which tries to produce a
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correct file by merging the good parts of two or more damaged copies.
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* lziprecover.cc: New option '-R, --repair' for repairing a
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1-byte error in single-member files.
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* decoder.cc (decode_member): Detect file errors earlier to improve
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efficiency of lziprecover's new repair capability.
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This change also prevents (harmless) access to uninitialized
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memory when decompressing a corrupt file.
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* lziprecover.cc: New options '-f, --force' and '-o, --output'.
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* lziprecover.cc: New option '-s, --split' to select the until now
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only operation of splitting multimember files.
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* lziprecover.cc: If no operation is specified, warn the user and do
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nothing.
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* main.cc: Fix warning about fchown's return value being ignored.
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* decoder.cc: '-tvvvv' now also shows compression ratio.
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* main.cc: Set stdin/stdout in binary mode on MSVC and OS2.
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* lzip.texinfo: New examples.
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* testsuite: Rename 'test1' to 'test.txt'. New tests.
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* Matchfinder types HC4 (4 bytes hash-chain) and HT4 (4 bytes
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hash-table) have been tested and found no better than the current
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BT4.
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2010-04-05 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.10 released.
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* decoder.h: Input_buffer integrated in Range_decoder.
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* main.cc: File specified with option '-o' is now created with mode
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0666 if umask allows it, deleted if interrupted by user.
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* main.cc: New constant 'o_binary'.
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* main.cc: Dictionary size for options -2, -3, -4 and -8 has been
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changed to improve linearity of compressed sizes.
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* lzip.h: Fix warnings produced by over-optimization (-O3).
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* Makefile.in: Add quotes to directory names.
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2010-01-17 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.9 released.
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* main.cc (main): Return at least 1 if closing stdout fails.
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* Makefile.in: Add option '--name' to help2man invocation.
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* check.sh: Use 'test1' instead of 'COPYING' for testing.
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2009-09-02 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.8 released.
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* Compression time has been reduced by 4%.
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* Lzdiff and lzgrep have been moved to the new package zutils.
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* Fix warnings on systems where uint32_t != unsigned int.
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2009-06-25 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.7 released.
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* decoder.h (copy_block): Fix memcpy overlap introduced in 1.6.
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2009-06-22 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.6 released.
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* Decompression time has been reduced by 17%.
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* Add decompression support for Sync Flush marker.
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* Add support for the extension '.tbz' to lzdiff and lzgrep.
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* Add man pages for lzdiff, lzgrep and lziprecover.
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* encoder.cc (Matchfinder): Reduce memory use to 9x if input file is
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smaller than dictionary size limit.
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* decoder.cc: Add extra flush calls to improve partial decompression
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of corrupt files.
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* '--test' no longer needs '/dev/null'.
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* Remove some 'bashisms' from lzdiff and lzgrep.
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* Dictionary size for options '-1' to '-4' has been changed.
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* main.cc (signal_handler): Declare as 'extern "C"'.
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* Makefile.in: Extra files are now installed by default.
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* check.sh: Test lziprecover.
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* Add 'export LC_ALL=C' to all scripts.
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2009-04-12 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.5 released.
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* lzip.h: Implement coded dictionary size in Lzip_header.
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* Fix some includes that prevented compilation with GCC 4.4.
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* 'member_size' and 'volume_size' are now accurate limits.
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* Compression speed has been improved.
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* Implement bt4 type matchfinder.
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* lzip.texinfo: New chapter 'Algorithm'.
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* Lzdiff and lzgrep now accept '-h' for '--help' and
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'-V' for '--version'.
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* Makefile.in: Man page is now installed by default.
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* check.sh: Check that files are opened in binary mode.
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2009-01-24 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.4 released.
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* Implement compression of version 1 files.
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* New options '-b, --member-size', '-S, --volume-size', and
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'-o, --output'.
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* main.cc: Read from non-regular files if '--stdout' is specified.
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* Add 'lziprecover', a member recoverer program.
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* unzcrash.cc: Test all 1-byte errors.
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2008-12-21 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.3 released.
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* This version automatically chooses the smallest possible
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dictionary size for each file during compression, saving memory
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during decompression.
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* Implement decompression of version 1 files.
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* check.sh: Replace 'diff -q' with 'cmp'.
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2008-12-10 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.2 released.
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* encoder.cc: A 1-byte read outside allocated memory has been fixed.
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* lzip.h: Dictionary size limit has been reduced to 512 MiB because
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setting it to 1 GiB causes overflow of a 32 bit integer.
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* Add 'lzdiff', a diff/cmp wrapper for gzip, bzip2, lzip and
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non-compressed files.
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* Add 'lzgrep', a grep wrapper for gzip, bzip2, lzip and
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non-compressed files.
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* 'make install-info' should now work on Debian and OS X.
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2008-11-17 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.1 released.
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* Change short name of option '--dictionary-size' to '-s'.
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* Change short name of option '--match-length' to '-m'.
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* Change LONG_LONG_MAX to LLONG_MAX.
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2008-10-14 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 1.0 released.
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* '-tvv' shows file version and dictionary size.
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2008-09-30 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 0.5 released.
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* Decompression is now 1% faster.
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2008-09-23 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 0.4 released.
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* Code cleanup for global variable 'verbosity'.
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* Regain the compression ratio of 0.2 with 5% faster speed.
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* lzip.h: Fix compilation on systems where size_t != unsigned int.
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2008-09-15 Antonio Diaz Diaz <ant_diaz@teleline.es>
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* Version 0.3 released.
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||||||
|
* encoder.cc: Compression is now 15% faster, 1% worse.
|
||||||
|
* main.cc (main): Make option '-t' 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) 2008-2024 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.
|
||||||
|
|
@ -0,0 +1,197 @@
|
||||||
|
/* Arg_parser - POSIX/GNU command-line argument parser. (C++ version)
|
||||||
|
Copyright (C) 2006-2024 Antonio Diaz Diaz.
|
||||||
|
|
||||||
|
This library is free software. Redistribution and use in source and
|
||||||
|
binary forms, with or without modification, are permitted provided
|
||||||
|
that the following conditions are met:
|
||||||
|
|
||||||
|
1. Redistributions of source code must retain the above copyright
|
||||||
|
notice, this list of conditions, and the following disclaimer.
|
||||||
|
|
||||||
|
2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
notice, this list of conditions, and the following disclaimer in the
|
||||||
|
documentation and/or other materials provided with the distribution.
|
||||||
|
|
||||||
|
This library is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <cstring>
|
||||||
|
#include <string>
|
||||||
|
#include <vector>
|
||||||
|
|
||||||
|
#include "arg_parser.h"
|
||||||
|
|
||||||
|
|
||||||
|
bool Arg_parser::parse_long_option( const char * const opt, const char * const arg,
|
||||||
|
const Option options[], int & argind )
|
||||||
|
{
|
||||||
|
unsigned len;
|
||||||
|
int index = -1;
|
||||||
|
bool exact = false, ambig = false;
|
||||||
|
|
||||||
|
for( len = 0; opt[len+2] && opt[len+2] != '='; ++len ) ;
|
||||||
|
|
||||||
|
// Test all long options for either exact match or abbreviated matches.
|
||||||
|
for( int i = 0; options[i].code != 0; ++i )
|
||||||
|
if( options[i].long_name &&
|
||||||
|
std::strncmp( options[i].long_name, &opt[2], len ) == 0 )
|
||||||
|
{
|
||||||
|
if( std::strlen( options[i].long_name ) == len ) // Exact match found
|
||||||
|
{ index = i; exact = true; break; }
|
||||||
|
else if( index < 0 ) index = i; // First nonexact match found
|
||||||
|
else if( options[index].code != options[i].code ||
|
||||||
|
options[index].has_arg != options[i].has_arg )
|
||||||
|
ambig = true; // Second or later nonexact match found
|
||||||
|
}
|
||||||
|
|
||||||
|
if( ambig && !exact )
|
||||||
|
{
|
||||||
|
error_ = "option '"; error_ += opt; error_ += "' is ambiguous";
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
if( index < 0 ) // nothing found
|
||||||
|
{
|
||||||
|
error_ = "unrecognized option '"; error_ += opt; error_ += '\'';
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
++argind;
|
||||||
|
data.push_back( Record( options[index].code, options[index].long_name ) );
|
||||||
|
|
||||||
|
if( opt[len+2] ) // '--<long_option>=<argument>' syntax
|
||||||
|
{
|
||||||
|
if( options[index].has_arg == no )
|
||||||
|
{
|
||||||
|
error_ = "option '--"; error_ += options[index].long_name;
|
||||||
|
error_ += "' doesn't allow an argument";
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
if( options[index].has_arg == yes && !opt[len+3] )
|
||||||
|
{
|
||||||
|
error_ = "option '--"; error_ += options[index].long_name;
|
||||||
|
error_ += "' requires an argument";
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
data.back().argument = &opt[len+3];
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
if( options[index].has_arg == yes )
|
||||||
|
{
|
||||||
|
if( !arg || !arg[0] )
|
||||||
|
{
|
||||||
|
error_ = "option '--"; error_ += options[index].long_name;
|
||||||
|
error_ += "' requires an argument";
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
++argind; data.back().argument = arg;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
bool Arg_parser::parse_short_option( const char * const opt, const char * const arg,
|
||||||
|
const Option options[], int & argind )
|
||||||
|
{
|
||||||
|
int cind = 1; // character index in opt
|
||||||
|
|
||||||
|
while( cind > 0 )
|
||||||
|
{
|
||||||
|
int index = -1;
|
||||||
|
const unsigned char c = opt[cind];
|
||||||
|
|
||||||
|
if( c != 0 )
|
||||||
|
for( int i = 0; options[i].code; ++i )
|
||||||
|
if( c == options[i].code )
|
||||||
|
{ index = i; break; }
|
||||||
|
|
||||||
|
if( index < 0 )
|
||||||
|
{
|
||||||
|
error_ = "invalid option -- '"; error_ += c; error_ += '\'';
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
data.push_back( Record( c ) );
|
||||||
|
if( opt[++cind] == 0 ) { ++argind; cind = 0; } // opt finished
|
||||||
|
|
||||||
|
if( options[index].has_arg != no && cind > 0 && opt[cind] )
|
||||||
|
{
|
||||||
|
data.back().argument = &opt[cind]; ++argind; cind = 0;
|
||||||
|
}
|
||||||
|
else if( options[index].has_arg == yes )
|
||||||
|
{
|
||||||
|
if( !arg || !arg[0] )
|
||||||
|
{
|
||||||
|
error_ = "option requires an argument -- '"; error_ += c;
|
||||||
|
error_ += '\'';
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
data.back().argument = arg; ++argind; cind = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
Arg_parser::Arg_parser( const int argc, const char * const argv[],
|
||||||
|
const Option options[], const bool in_order )
|
||||||
|
{
|
||||||
|
if( argc < 2 || !argv || !options ) return;
|
||||||
|
|
||||||
|
std::vector< const char * > non_options; // skipped non-options
|
||||||
|
int argind = 1; // index in argv
|
||||||
|
|
||||||
|
while( argind < argc )
|
||||||
|
{
|
||||||
|
const unsigned char ch1 = argv[argind][0];
|
||||||
|
const unsigned char ch2 = ch1 ? argv[argind][1] : 0;
|
||||||
|
|
||||||
|
if( ch1 == '-' && ch2 ) // we found an option
|
||||||
|
{
|
||||||
|
const char * const opt = argv[argind];
|
||||||
|
const char * const arg = ( argind + 1 < argc ) ? argv[argind+1] : 0;
|
||||||
|
if( ch2 == '-' )
|
||||||
|
{
|
||||||
|
if( !argv[argind][2] ) { ++argind; break; } // we found "--"
|
||||||
|
else if( !parse_long_option( opt, arg, options, argind ) ) break;
|
||||||
|
}
|
||||||
|
else if( !parse_short_option( opt, arg, options, argind ) ) break;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
if( in_order ) data.push_back( Record( argv[argind++] ) );
|
||||||
|
else non_options.push_back( argv[argind++] );
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if( !error_.empty() ) data.clear();
|
||||||
|
else
|
||||||
|
{
|
||||||
|
for( unsigned i = 0; i < non_options.size(); ++i )
|
||||||
|
data.push_back( Record( non_options[i] ) );
|
||||||
|
while( argind < argc )
|
||||||
|
data.push_back( Record( argv[argind++] ) );
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
Arg_parser::Arg_parser( const char * const opt, const char * const arg,
|
||||||
|
const Option options[] )
|
||||||
|
{
|
||||||
|
if( !opt || !opt[0] || !options ) return;
|
||||||
|
|
||||||
|
if( opt[0] == '-' && opt[1] ) // we found an option
|
||||||
|
{
|
||||||
|
int argind = 1; // dummy
|
||||||
|
if( opt[1] == '-' )
|
||||||
|
{ if( opt[2] ) parse_long_option( opt, arg, options, argind ); }
|
||||||
|
else
|
||||||
|
parse_short_option( opt, arg, options, argind );
|
||||||
|
if( !error_.empty() ) data.clear();
|
||||||
|
}
|
||||||
|
else data.push_back( Record( opt ) );
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,110 @@
|
||||||
|
/* Arg_parser - POSIX/GNU command-line argument parser. (C++ version)
|
||||||
|
Copyright (C) 2006-2024 Antonio Diaz Diaz.
|
||||||
|
|
||||||
|
This library is free software. Redistribution and use in source and
|
||||||
|
binary forms, with or without modification, are permitted provided
|
||||||
|
that the following conditions are met:
|
||||||
|
|
||||||
|
1. Redistributions of source code must retain the above copyright
|
||||||
|
notice, this list of conditions, and the following disclaimer.
|
||||||
|
|
||||||
|
2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
notice, this list of conditions, and the following disclaimer in the
|
||||||
|
documentation and/or other materials provided with the distribution.
|
||||||
|
|
||||||
|
This library is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Arg_parser reads the arguments in 'argv' and creates a number of
|
||||||
|
option codes, option arguments, and non-option arguments.
|
||||||
|
|
||||||
|
In case of error, 'error' returns a non-empty error message.
|
||||||
|
|
||||||
|
'options' is an array of 'struct Option' terminated by an element
|
||||||
|
containing a code which is zero. A null long_name means a short-only
|
||||||
|
option. A code value outside the unsigned char range means a long-only
|
||||||
|
option.
|
||||||
|
|
||||||
|
Arg_parser normally makes it appear as if all the option arguments
|
||||||
|
were specified before all the non-option arguments for the purposes
|
||||||
|
of parsing, even if the user of your program intermixed option and
|
||||||
|
non-option arguments. If you want the arguments in the exact order
|
||||||
|
the user typed them, call 'Arg_parser' with 'in_order' = true.
|
||||||
|
|
||||||
|
The argument '--' terminates all options; any following arguments are
|
||||||
|
treated as non-option arguments, even if they begin with a hyphen.
|
||||||
|
|
||||||
|
The syntax for optional option arguments is '-<short_option><argument>'
|
||||||
|
(without whitespace), or '--<long_option>=<argument>'.
|
||||||
|
*/
|
||||||
|
|
||||||
|
class Arg_parser
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
enum Has_arg { no, yes, maybe };
|
||||||
|
|
||||||
|
struct Option
|
||||||
|
{
|
||||||
|
int code; // Short option letter or code ( code != 0 )
|
||||||
|
const char * long_name; // Long option name (maybe null)
|
||||||
|
Has_arg has_arg;
|
||||||
|
};
|
||||||
|
|
||||||
|
private:
|
||||||
|
struct Record
|
||||||
|
{
|
||||||
|
int code;
|
||||||
|
std::string parsed_name;
|
||||||
|
std::string argument;
|
||||||
|
explicit Record( const unsigned char c )
|
||||||
|
: code( c ), parsed_name( "-" ) { parsed_name += c; }
|
||||||
|
Record( const int c, const char * const long_name )
|
||||||
|
: code( c ), parsed_name( "--" ) { parsed_name += long_name; }
|
||||||
|
explicit Record( const char * const arg ) : code( 0 ), argument( arg ) {}
|
||||||
|
};
|
||||||
|
|
||||||
|
const std::string empty_arg;
|
||||||
|
std::string error_;
|
||||||
|
std::vector< Record > data;
|
||||||
|
|
||||||
|
bool parse_long_option( const char * const opt, const char * const arg,
|
||||||
|
const Option options[], int & argind );
|
||||||
|
bool parse_short_option( const char * const opt, const char * const arg,
|
||||||
|
const Option options[], int & argind );
|
||||||
|
|
||||||
|
public:
|
||||||
|
Arg_parser( const int argc, const char * const argv[],
|
||||||
|
const Option options[], const bool in_order = false );
|
||||||
|
|
||||||
|
// Restricted constructor. Parses a single token and argument (if any).
|
||||||
|
Arg_parser( const char * const opt, const char * const arg,
|
||||||
|
const Option options[] );
|
||||||
|
|
||||||
|
const std::string & error() const { return error_; }
|
||||||
|
|
||||||
|
// The number of arguments parsed. May be different from argc.
|
||||||
|
int arguments() const { return data.size(); }
|
||||||
|
|
||||||
|
/* If code( i ) is 0, argument( i ) is a non-option.
|
||||||
|
Else argument( i ) is the option's argument (or empty). */
|
||||||
|
int code( const int i ) const
|
||||||
|
{
|
||||||
|
if( i >= 0 && i < arguments() ) return data[i].code;
|
||||||
|
else return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Full name of the option parsed (short or long).
|
||||||
|
const std::string & parsed_name( const int i ) const
|
||||||
|
{
|
||||||
|
if( i >= 0 && i < arguments() ) return data[i].parsed_name;
|
||||||
|
else return empty_arg;
|
||||||
|
}
|
||||||
|
|
||||||
|
const std::string & argument( const int i ) const
|
||||||
|
{
|
||||||
|
if( i >= 0 && i < arguments() ) return data[i].argument;
|
||||||
|
else return empty_arg;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
@ -0,0 +1,231 @@
|
||||||
|
#! /bin/sh
|
||||||
|
# configure script for Lzip - LZMA lossless data compressor
|
||||||
|
# Copyright (C) 2008-2024 Antonio Diaz Diaz.
|
||||||
|
#
|
||||||
|
# This configure script is free software: you have unlimited permission
|
||||||
|
# to copy, distribute, and modify it.
|
||||||
|
|
||||||
|
pkgname=lzip
|
||||||
|
pkgversion=1.24
|
||||||
|
progname=lzip
|
||||||
|
srctrigger=doc/${pkgname}.texi
|
||||||
|
|
||||||
|
# clear some things potentially inherited from environment.
|
||||||
|
LC_ALL=C
|
||||||
|
export LC_ALL
|
||||||
|
srcdir=
|
||||||
|
prefix=/usr/local
|
||||||
|
exec_prefix='$(prefix)'
|
||||||
|
bindir='$(exec_prefix)/bin'
|
||||||
|
datarootdir='$(prefix)/share'
|
||||||
|
infodir='$(datarootdir)/info'
|
||||||
|
mandir='$(datarootdir)/man'
|
||||||
|
build=no
|
||||||
|
check=no
|
||||||
|
installdir=
|
||||||
|
CXX=g++
|
||||||
|
CPPFLAGS=
|
||||||
|
CXXFLAGS='-Wall -W -O2'
|
||||||
|
LDFLAGS=
|
||||||
|
MAKEINFO=makeinfo
|
||||||
|
|
||||||
|
# checking whether we are using GNU C++.
|
||||||
|
/bin/sh -c "${CXX} --version" > /dev/null 2>&1 || { CXX=c++ ; CXXFLAGS=-O2 ; }
|
||||||
|
|
||||||
|
# Loop over all args
|
||||||
|
args=
|
||||||
|
no_create=
|
||||||
|
while [ $# != 0 ] ; do
|
||||||
|
|
||||||
|
# Get the first arg, and shuffle
|
||||||
|
option=$1 ; arg2=no
|
||||||
|
shift
|
||||||
|
|
||||||
|
# Add the argument quoted to args
|
||||||
|
if [ -z "${args}" ] ; then args="\"${option}\""
|
||||||
|
else args="${args} \"${option}\"" ; fi
|
||||||
|
|
||||||
|
# Split out the argument for options that take them
|
||||||
|
case ${option} in
|
||||||
|
*=*) optarg=`echo "${option}" | sed -e 's,^[^=]*=,,;s,/$,,'` ;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# Process the options
|
||||||
|
case ${option} in
|
||||||
|
--help | -h)
|
||||||
|
echo "Usage: $0 [OPTION]... [VAR=VALUE]..."
|
||||||
|
echo
|
||||||
|
echo "To assign makefile variables (e.g., CXX, CXXFLAGS...), specify them as"
|
||||||
|
echo "arguments to configure in the form VAR=VALUE."
|
||||||
|
echo
|
||||||
|
echo "Options and variables: [defaults in brackets]"
|
||||||
|
echo " -h, --help display this help and exit"
|
||||||
|
echo " -V, --version output version information and exit"
|
||||||
|
echo " --srcdir=DIR find the source code in DIR [. or ..]"
|
||||||
|
echo " --prefix=DIR install into DIR [${prefix}]"
|
||||||
|
echo " --exec-prefix=DIR base directory for arch-dependent files [${exec_prefix}]"
|
||||||
|
echo " --bindir=DIR user executables directory [${bindir}]"
|
||||||
|
echo " --datarootdir=DIR base directory for doc and data [${datarootdir}]"
|
||||||
|
echo " --infodir=DIR info files directory [${infodir}]"
|
||||||
|
echo " --mandir=DIR man pages directory [${mandir}]"
|
||||||
|
echo " --build build in one step without using 'make'"
|
||||||
|
echo " --check check without using 'make', implies --build"
|
||||||
|
echo " --installdir=BINDIR install without using 'make', implies --build"
|
||||||
|
echo " CXX=COMPILER C++ compiler to use [${CXX}]"
|
||||||
|
echo " CPPFLAGS=OPTIONS command-line options for the preprocessor [${CPPFLAGS}]"
|
||||||
|
echo " CXXFLAGS=OPTIONS command-line options for the C++ compiler [${CXXFLAGS}]"
|
||||||
|
echo " CXXFLAGS+=OPTIONS append options to the current value of CXXFLAGS"
|
||||||
|
echo " LDFLAGS=OPTIONS command-line options for the linker [${LDFLAGS}]"
|
||||||
|
echo " MAKEINFO=NAME makeinfo program to use [${MAKEINFO}]"
|
||||||
|
echo
|
||||||
|
exit 0 ;;
|
||||||
|
--version | -V)
|
||||||
|
echo "Configure script for ${pkgname} version ${pkgversion}"
|
||||||
|
exit 0 ;;
|
||||||
|
--srcdir) srcdir=$1 ; arg2=yes ;;
|
||||||
|
--prefix) prefix=$1 ; arg2=yes ;;
|
||||||
|
--exec-prefix) exec_prefix=$1 ; arg2=yes ;;
|
||||||
|
--bindir) bindir=$1 ; arg2=yes ;;
|
||||||
|
--datarootdir) datarootdir=$1 ; arg2=yes ;;
|
||||||
|
--infodir) infodir=$1 ; arg2=yes ;;
|
||||||
|
--mandir) mandir=$1 ; arg2=yes ;;
|
||||||
|
--installdir) installdir=$1 ; arg2=yes ;;
|
||||||
|
|
||||||
|
--srcdir=*) srcdir=${optarg} ;;
|
||||||
|
--prefix=*) prefix=${optarg} ;;
|
||||||
|
--exec-prefix=*) exec_prefix=${optarg} ;;
|
||||||
|
--bindir=*) bindir=${optarg} ;;
|
||||||
|
--datarootdir=*) datarootdir=${optarg} ;;
|
||||||
|
--infodir=*) infodir=${optarg} ;;
|
||||||
|
--mandir=*) mandir=${optarg} ;;
|
||||||
|
--build) build=yes ;;
|
||||||
|
--check) check=yes ; build=yes ;;
|
||||||
|
--installdir=*) installdir=${optarg} ; build=yes ;;
|
||||||
|
--no-create) no_create=yes ;;
|
||||||
|
|
||||||
|
CXX=*) CXX=${optarg} ;;
|
||||||
|
CPPFLAGS=*) CPPFLAGS=${optarg} ;;
|
||||||
|
CXXFLAGS=*) CXXFLAGS=${optarg} ;;
|
||||||
|
CXXFLAGS+=*) CXXFLAGS="${CXXFLAGS} ${optarg}" ;;
|
||||||
|
LDFLAGS=*) LDFLAGS=${optarg} ;;
|
||||||
|
MAKEINFO=*) MAKEINFO=${optarg} ;;
|
||||||
|
|
||||||
|
--*)
|
||||||
|
echo "configure: WARNING: unrecognized option: '${option}'" 1>&2 ;;
|
||||||
|
*=* | *-*-*) ;;
|
||||||
|
*)
|
||||||
|
echo "configure: unrecognized option: '${option}'" 1>&2
|
||||||
|
echo "Try 'configure --help' for more information." 1>&2
|
||||||
|
exit 1 ;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# Check if the option took a separate argument
|
||||||
|
if [ "${arg2}" = yes ] ; then
|
||||||
|
if [ $# != 0 ] ; then args="${args} \"$1\"" ; shift
|
||||||
|
else echo "configure: Missing argument to '${option}'" 1>&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
|
||||||
|
# Find the source code, if location was not specified.
|
||||||
|
srcdirtext=
|
||||||
|
if [ -z "${srcdir}" ] ; then
|
||||||
|
srcdirtext="or . or .." ; srcdir=.
|
||||||
|
if [ ! -r "${srcdir}/${srctrigger}" ] ; then srcdir=.. ; fi
|
||||||
|
if [ ! -r "${srcdir}/${srctrigger}" ] ; then
|
||||||
|
## the sed command below emulates the dirname command
|
||||||
|
srcdir=`echo "$0" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ ! -r "${srcdir}/${srctrigger}" ] ; then
|
||||||
|
echo "configure: Can't find source code in ${srcdir} ${srcdirtext}" 1>&2
|
||||||
|
echo "configure: (At least ${srctrigger} is missing)." 1>&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Set srcdir to . if that's what it is.
|
||||||
|
if [ "`pwd`" = "`cd "${srcdir}" ; pwd`" ] ; then srcdir=. ; fi
|
||||||
|
|
||||||
|
if [ "${build}" = yes ] ; then
|
||||||
|
objs=$(sed -e :a -e '/\\$/N; s/\\\n//; ta' "${srcdir}/Makefile.in" | \
|
||||||
|
sed -n -e 's/^ *objs *= *//p' | sed -e 's/ \{2,\}/ /g')
|
||||||
|
for ofile in ${objs} ; do
|
||||||
|
file="${ofile%.o}.cc" ; pver=
|
||||||
|
[ "${ofile}" = main.o ] && pver=" -DPROGVERSION=\"${pkgversion}\""
|
||||||
|
compile_command="${CXX} ${CPPFLAGS} ${CXXFLAGS}${pver} -c -o ${ofile}"
|
||||||
|
echo "${compile_command} ${srcdir}/${file}"
|
||||||
|
${compile_command} "${srcdir}/${file}" || exit 1
|
||||||
|
done
|
||||||
|
link_command="${CXX} ${LDFLAGS} ${CXXFLAGS} -o ${progname} ${objs}"
|
||||||
|
echo "${link_command}" ; ${link_command} || exit 1
|
||||||
|
if [ "${check}" = yes ] ; then
|
||||||
|
"${srcdir}/testsuite/check.sh" "${srcdir}/testsuite" ${pkgversion} || exit 1
|
||||||
|
fi
|
||||||
|
if [ -n "${installdir}" ] ; then
|
||||||
|
echo "installing ${progname} in ${installdir}"
|
||||||
|
[ -d "${installdir}" ] || mkdir -p "${installdir}" || exit 1
|
||||||
|
cp -fp ${progname} "${installdir}/${progname}" || exit 1
|
||||||
|
fi
|
||||||
|
exit 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo
|
||||||
|
if [ -z "${no_create}" ] ; then
|
||||||
|
echo "creating config.status"
|
||||||
|
rm -f config.status
|
||||||
|
cat > config.status << EOF
|
||||||
|
#! /bin/sh
|
||||||
|
# This file was generated automatically by configure. Don't edit.
|
||||||
|
# Run this file to recreate the current configuration.
|
||||||
|
#
|
||||||
|
# This script is free software: you have unlimited permission
|
||||||
|
# to copy, distribute, and modify it.
|
||||||
|
|
||||||
|
exec /bin/sh "$0" ${args} --no-create
|
||||||
|
EOF
|
||||||
|
chmod +x config.status
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo "creating Makefile"
|
||||||
|
echo "VPATH = ${srcdir}"
|
||||||
|
echo "prefix = ${prefix}"
|
||||||
|
echo "exec_prefix = ${exec_prefix}"
|
||||||
|
echo "bindir = ${bindir}"
|
||||||
|
echo "datarootdir = ${datarootdir}"
|
||||||
|
echo "infodir = ${infodir}"
|
||||||
|
echo "mandir = ${mandir}"
|
||||||
|
echo "CXX = ${CXX}"
|
||||||
|
echo "CPPFLAGS = ${CPPFLAGS}"
|
||||||
|
echo "CXXFLAGS = ${CXXFLAGS}"
|
||||||
|
echo "LDFLAGS = ${LDFLAGS}"
|
||||||
|
echo "MAKEINFO = ${MAKEINFO}"
|
||||||
|
rm -f Makefile
|
||||||
|
cat > Makefile << EOF
|
||||||
|
# Makefile for Lzip - LZMA lossless data compressor
|
||||||
|
# Copyright (C) 2008-2024 Antonio Diaz Diaz.
|
||||||
|
# This file was generated automatically by configure. Don't edit.
|
||||||
|
#
|
||||||
|
# This Makefile is free software: you have unlimited permission
|
||||||
|
# to copy, distribute, and modify it.
|
||||||
|
|
||||||
|
pkgname = ${pkgname}
|
||||||
|
pkgversion = ${pkgversion}
|
||||||
|
progname = ${progname}
|
||||||
|
VPATH = ${srcdir}
|
||||||
|
prefix = ${prefix}
|
||||||
|
exec_prefix = ${exec_prefix}
|
||||||
|
bindir = ${bindir}
|
||||||
|
datarootdir = ${datarootdir}
|
||||||
|
infodir = ${infodir}
|
||||||
|
mandir = ${mandir}
|
||||||
|
CXX = ${CXX}
|
||||||
|
CPPFLAGS = ${CPPFLAGS}
|
||||||
|
CXXFLAGS = ${CXXFLAGS}
|
||||||
|
LDFLAGS = ${LDFLAGS}
|
||||||
|
MAKEINFO = ${MAKEINFO}
|
||||||
|
EOF
|
||||||
|
cat "${srcdir}/Makefile.in" >> Makefile
|
||||||
|
|
||||||
|
echo "OK. Now you can run make."
|
||||||
Loading…
Reference in New Issue