NAME

     lt-trim — compiled dictionary trimmer for Apertium

SYNOPSIS

     lt-trim analyser_binary bidix_binary trimmed_analyser_binary

DESCRIPTION

     lt-trim is the application responsible for trimming compiled dictionaries.  The analyses
     (right-side when compiling lr) of analyser_binary are trimmed to the input side of
     bidix_binary (left-side when compiling lr, right-side when compiling rl), such that only
     analyses which would pass through ‘lt-proc(1) -b bidix_binary’ are kept.

     Warning: this program is experimental! It has been tested, but not deployed extensively yet.

     Both compound tags (“<compound-only-L>”, “<compound-R>”) and join elements (“<j/>” in XML,
     “+” in the stream) and the group element (“<g/>” in XML, “#” in the stream) should be
     handled correctly, even combinations of + followed by # in monodix are handled.

     Some minor caveats: If you have the capitalised lemma “Foo” in the monodix, but “foo” in the
     bidix, an analysis “^Foo<tag>$” would pass through bidix when doing lt-proc(1) -b, but will
     not make it through trimming.  Make sure your lemmas have the same capitalisation in the
     different dictionaries.  Also, you should not have literal ‘+’ or ‘#’ in your lemmas.  Since
     lt-comp(1) doesn't escape these, lt-trim cannot know that they are different from “<j/>” or
     “<g/>”, and you may get @-marked output this way.  You can analyse ‘+’ or ‘#’ by having the
     literal symbol in the “<l>” part and some other string (e.g., “plus”) in the “<r>”.

     You should not trim a generator unless you have a very simple translator pipeline, since the
     output of bidix seldom goes unchanged through transfer.

FILES

     analyser_binary
             The untrimmed analyser dictionary (a finite state transducer).

     bidix_binary
             The dictionary to use as trimmer (a finite state transducer).

     trimmed_analyser_binary
             The trimmed analyser dictionary (a finite state transducer).

SEE ALSO

     apertium(1), apertium-tagger(1), lt-comp(1), lt-expand(1), lt-print(1), lt-proc(1)

AUTHOR

     Copyright © 2005, 2006 Universitat d'Alacant / Universidad de Alicante.  This is free
     software.  You may redistribute copies of it under the terms of the GNU General Public
     License: https://www.gnu.org/licenses/gpl.html.

BUGS

     Many... lurking in the dark and waiting for you!