prezip-bin

PREZIP-BIN(1)           Aspell Abbreviated User's Manual           PREZIP-BIN(1)



NAME
       prezip-bin - prefix zip delta word list compressor/decompressor

SYNOPSIS
       prezip-bin [ -V | -d | -z ]

DESCRIPTION
       prezip-bin compresses/decompresses sorted word lists from standard input
       to standard output.

       Prezip-bin is similar to word-list-compress(1) but it allows a larger
       character set of {0x00...0x09, 0x0B, 0x0C, 0x0E...0xFF} and multi-words
       larger than 255 characters in length.  It can also decompress
       word-list-compress(1) compatible files.

COMMANDS
       Prezip-bin accepts only one of these commands.

       -V     Display prezip-bin version number to standard output.

       -d     Read a compressed word list from standard input and decompress it
              to standard output.  This can be a word-list-compress(1) or a
              prezip-bin compressed file.

       -z     Read a binary word list from standard input and compress it to
              standard output.

EXAMPLES
       prezip-bin -d <wordlist.cwl >wordlist.txt
              Decompress file wordlist.cwl to text file wordlist.txt

       prezip-bin -z <wordlist.txt >wordlist.pz 2>errors.txt
              Compress wordlist.txt to binary file wordlist.pz and send any
              error messages to a text file named errors.txt

       LC_COLLATE=C sort -u <wordlist.txt | prezip-bin -z >wordlist.pz
              Sort a word list, then pipe it to prezip-bin to create a
              compressed binary wordlist.pz file.

       prezip-bin -d <words.pz | aspell create master ./words.rws
              Decompress a wordlist, then pipe it to aspell(1) to create a
              spelling list.  Please check the aspell(1) info manual for proper
              usage and options.

TIPS
       Prezip-bin is best used with sorted word list type files.  It is not a
       general purpose compression program since resulting files may actually
       increase in size.

       Unlike word-list-compress(1) if your word list has leading or trailing
       blank spaces for formatting purposes, you should remove them first before
       you compress your list using prezip-bin -z , otherwise those spaces will
       be included in the compressed binary output.

DIAGNOSTICS
       Prezip-bin normally exits with a return code of 0. If it encounters an
       error, a message is sent to standard error output (stderr), and
       prezip-bin exits with a non-zero return value.  Error messages are listed
       below:

       (display help/usage message)
              Unknown command given on the command line so prezip-bin displays a
              usage message to standard error output.

       unknown format
              The input file appears not to be an expected format, or may
              possibly be a more advanced format.  The output file will be
              empty.

       corrupt input
              This is only for the decompression command -d. The input file
              appeared to be of a correct format, but something appears wrong
              now.  There may be some valid data in output, but due to input
              corruption, the rest of the file can not be completed.

       unexpected EOF
              The input file appeared okay but ended sooner than expected,
              therefore the output file is not complete.

SEE ALSO
       aspell(1), run-with-aspell(1), word-list-compress(1)

       Aspell is fully documented in its Texinfo manual.  See the `aspell' entry
       in info for more complete documentation.

REPORTING BUGS
       For help, see the Aspell homepage at <http://aspell.net>.  Send bug
       reports/comments to the Aspell user list at the above address.

AUTHOR
       This info page was written by Jose Da Silva <digital@joescat.com>.



prezip-bin-0.1.2                   2005-09-30                      PREZIP-BIN(1)