lt-trim(1)

NAME
lt-trim - This application is part of the lexical processing modules and tools ( lttoolbox )

This tool is part of the apertium machine translation architecture: http://www.apertium.org.

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 -b bidix_binary' are kept.

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

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

BUGS
Lots of...lurking in the dark and waiting for you!

AUTHOR
(c) 2013--2014 Universitat d'Alacant / Universidad de Alicante.