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langident(1p)


NAME

   langident - identifies the language files are written in

SYNOPSIS

     langident [OPTIONS] file1 [file2 ...]

DESCRIPTION

   Identifies the language files are written in using Perl module
   Lingua::Identify.

   OPTIONS
   -a
   Show all results (not just the most probable language).

   -c
   Show confidence level for most probable language (it will be the first
   value right after the most probable language).

   -d
   Debug (development only).

   -E ENCODING
   Select an input encoding. Defaults to UTF-8.

     # use ISO-8859-1 (latin1)
     langident -E ISO-8859-1 file

   -e METHODS
   Select the method(s) to use. There are three ways of doing this:

     # simply using a method
     langident -e ngrams3 file

     # using several methods (separate them with a comma)
     langident -e prefixes3,suffixes3

     # using several methods and assign different weights to each of them
     langident -e smallwords=2,prefixes=1,ngrams3=1.3

   The available methods are the following: smallwords, prefixes1,
   prefixes2, prefixes3, prefixes4, suffixes1, suffixes2, suffixes3,
   suffixes4, ngrams1, ngrams2, ngrams3 and ngrams4.

   -h
   Display help message and exit.

   -l
   List all available languages and exit.

   -m NUMBER
   Set maximum number of results (languages) to display (shows the N most
   probable languages, by descending order of probability).

   Overrides the -a switch.

   -o LANGUAGES
   Only work with specified languages.

     # identify between Portuguese and English only
     langident -o pt,en *

   -p
   Also show percentages.

   -s SIZE
   Maximum size to examine.

   -v
   Show version and exit.

EXAMPLES

   Use methods ngrams2 and ngrams1, assigning the double of importance to
   ngrams2 (-e switch); output will include the three most probable
   languages (-m switch) with its percentages (-p switch) and also the
   confidence level (-c switch) of the first result.

     $ langident -e ngrams2=2,ngrams1 -c -p -m 3 README
     README:en 65.7209505939491 7.8971987481393 ga 4.11905889385895 tr 4.08487011400505
     $

TO DO

   *     Add a switch to ignore HTML tags (and maybe other formats too)

SEE ALSO

   Lingua::Identify(3), Text::ExtractWords(3), Text::Ngram(3),
   Text::Affixes(3).

   A linguist and/or a shrink.

   The latest CVS version of "Lingua::Identify" (which includes langident)
   can be attained at
   http://natura.di.uminho.pt/natura/viewcvs.cgi/Lingua/Identify/

   ISO 639 Language Codes, at http://www.w3.org/WAI/ER/IG/ert/iso639.htm

AUTHOR

   Jose Alves de Castro, <cog@cpan.org>

COPYRIGHT AND LICENSE

   Copyright 2004 by Jose Alves de Castro

   This library is free software; you can redistribute it and/or modify it
   under the same terms as Perl itself.



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