lttoolbox contains finite state tools for lexical processing,
morphological analysis and generation of words. Analysis is the
process of splitting a word like cats into its lemma cat and the
grammatical information <n><pl>. Generation is the opposite process.
The three main programs are lt-comp, the compiler, lt-proc, the processor, and lt-expand, which generates all possible mappings between surface forms and lexical forms in the dictionary.
Executables built by this package:
-
lt-comp: compiler, execute without parameters to show usage instructions. -
lt-proc: processor, typical options are -a (lexical analyser, default option), -g (lexical generator) and -p (lexical post-generator). Using -h will show all flags. -
lt-expand: generates all the pairs of transductions of a given dictionary. Execute without parameters to show the instructions of use. -
lt-trim: trims a compiled analyser to only contain entries which would pass through a compiled bidix, creating a new compiled and trimmed analyser. -
lt-compose: composes two compiled transducers (applying output of the first to input of the second), with support for flipping labels and allowing incomplete matches. -
lt-print: prints the arcs of a transducer in ATT format. -
lt-append: merges two compiled dictionaries. -
lt-paradigm: extracts all paths from a compiled dictionary matching an input pattern. -
lsx-comp: an alias oflt-comp.
There is also a C++ API that you can link to (see how apertium or apertium-lex-tools do this).
See https://wiki.apertium.org/wiki/Lttoolbox for usage examples and more information.
There are binaries available for Debian, Ubuntu, Fedora, CentOS, OpenSUSE, Windows, and macOS. We package both nightly builds and releases. See https://wiki.apertium.org/wiki/Installation for more information. Only build from source if you either want to change this tool's behavior, or are on a platform we don't yet package for.
Requirements:
- g++ >= 2.95
- GNU make
- libxml2 >= 2.6.17
- ICU
- utfcpp
Building & installing:
- ./autogen.sh
- make
- make install