Ports Search

This package includes sq and usq, archivers for the CP/M "Squeeze" format compressed files. This is also found on some older MS-DOS files.

Szip performs data compression/decompression. It uses a limited order sort transform. This transformation is related to the Burrows-Wheeler transformation used in block sorting compression methods. The difference is a fast, deterministic behaviour in time at some compression loss.

This package includes undms, a decompressor for the Amiga DMS disk image format. It outputs ".adf" (11 sector per track, 80 tracks, 512 bytes/sector) uncompressed disk images which may be written directly to disk on NetBSD/amiga or used with an Amiga emulator.

A small (60 Kb when stripped) and unencumbered implementation of untar.

LHa for UNIX with autoconf

xDMS is an archiver unpacker for the Amiga DMS file format. It supports decompression of files compressed using all known DMS compression modes, including old and obsolete ones, and also encrypted files, for 100% compatibility.

XMill is a new tool for compressing XML data efficiently. It is based on a regrouping strategy that leverages the effect of highly-efficient compression techniques in compressors such as gzip. XMill groups XML text strings with respect to their meaning and exploits similarities between those text strings for compression. Hence, XMill typically achieves much better compression rates than conventional compressors such as gzip.

This the Unix port of the Amiga XPK library. The XPK system consists of a master library (libxpkmaster.so) and several (un)packer sublibraries (libxpkXXXX.so). Application programs only use the master library directly: the master library takes care of loading and using the sublibraries. Each sublibrary implements one type of compression. There are different libraries for different types of data. When unpacking the applications do not need to know which library was used to pack the data -- the appropriate library needs to be installed.

Zopfli is a new zlib (gzip, deflate) compatible compressor. This compressor takes more time (~100x slower), but compresses around 5% better than zlib and better than any other zlib-compatible compressor we have found.

Astrometry engine aims to create correct, standards-compliant astrometric meta data for every useful astronomical image ever taken, past and future, in any state of archival disarray. The engine will take any image and return the astrometry world coordinate system (WCS) -- i.e., a standards-based description of the (usually nonlinear) transformation between image coordinates and sky coordinates -- with absolutely no "false positives" (but maybe some "no answers"). It will do its best, even when the input image has no -- or totally incorrect -- meta-data.