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LT-PROC(1) General Commands Manual LT-PROC(1) NAME lt-proc -- lexical processor for Apertium SYNOPSIS lt-proc [-a | -b | -o | -c | -d | -e | -g | -h | -p | -s | -t | -v | -h | -z | -w] [-W] [-N -N] [-L -N] [-i icx_file] fst_file [input_file [output_file]] DESCRIPTION lt-proc is the application responsible for providing the four lexical pro- cessing functionalities: * morphological analyser (option -a) * lexical transfer (option -n) * morphological generator (option -g) * post-generator (option -p) It accomplishes these tasks by reading binary files containing a compact and efficient representation of dictionaries (a class of finite-state transducers called augmented letter transducers). These files are gener- ated by lt-comp(1). It is worth mentioning that some characters (`[', `]', `$', `^', `/', `+') are special chars used for format and encapsulation. They should be es- caped if they have to be used literally, for instance: `['...`]' are ig- nored and the format of a linefeed is `^...$'. OPTIONS -a, --analysis Tokenizes the text in surface forms (lexical units as they appear in texts) and delivers, for each surface form, one or more lexical forms consisting of lemma, lexical category and morphological in- flection information. Tokenization is not straightforward due to the existence, on the one hand, of contractions, and, on the other hand, of multi-word lexical units. For contractions, the system reads in a single surface form and delivers the corresponding se- quence of lexical forms. Multi-word surface forms are analysed in a left-to-right, longest-match fashion. Multi-word surface forms may be invariable (such as a multi-word preposition or conjunction) or inflected (for example, in es, "echaban de menos", "they missed", is a form of the imperfect indicative tense of the verb "echar de menos", "to miss"). Limited support for some kinds of discontinuous multi-word units is also available. Single-word sur- face forms analysis produces output like the one in these examples: "cantar" -> "^cantar/cantar<vblex><inf>$" or "daba" -> "^daba/dar<vblex><pii><p1><sg>/dar<vblex><pii><p3><sg>$". -b, --bilingual Does lexical transference, attaching queues of morphological sym- bols not specified in the dictionaries. As the analysis mode, sup- ports multiple lexical forms in the target language for a given lexical form in the source language. Works typically with the out- put of apertium-pretransfer(1). -o, --surf-bilingual As with -b, but takes input from apertium-tagger(1) -p, with sur- face forms, and if the lexical form is not found in the bilingual dictionary, it outputs the surface form of the word. -c, --case-sensitive Use the literal case of the incoming characters -d, --debugged-gen Morphological generation with all the stuff -e, --decompose-compounds Try to treat unknown words as compounds, and decompose them. -w, --dictionary-case Use the case information contained in the lexicon, instead of the surface case (only applied in analysis mode). -g, --generation Delivers a target-language surface form for each target-language lexical form, by suitably inflecting it. -n, --non-marked-gen Morphological generation (like -g) but without unknown word marks (asterisk `*'). -b, --tagged-gen Morphological generation (like -g) but retaining part-of-speech tags. -p, --post-generation Performs orthographical operations such as contractions and apos- trophations. The post-generator is usually dormant (just copies the input to the output) until a special alarm symbol contained in some target-language surface forms wakes it up to perform a partic- ular string transformation if necessary; then it goes back to sleep. -s, --sao Input processing is in orthoepikon (previously sao) annotation sys- tem format: https://orthoepikon.sf.net. -t, --transliteration Apply a transliteration dictionary -i icx_file, --ignored-chars icx_file Ignores characters specified in the file icx_file -z, --null-flush Flush output on the null character -C, --careful-case Use dictionary case if present, else surface -N, --analyses Output no more than N analyses (if the transducer is weighted, the N best analyses) -L, --weight-classes Output no more than N best weight classes (where analyses with equal weight constitute a class) -W, --show-weights Print final analysis weights (if any) -v, --version Display the version number. -h, --help Display this help. FILES input_file The input compiled dictionary. SEE ALSO apertium(1), apertium-tagger(1), lt-comp(1), lt-expand(1) COPYRIGHT Copyright (C) 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. BUGS Many... lurking in the dark and waiting for you! Apertium March 23, 2006 LT-PROC(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | FILES | SEE ALSO | COPYRIGHT | BUGS
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