prezip-bin - Online in the Cloud

PROGRAM:

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.

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