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),
aspell-import(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>.