ANTLR (ANother Tool for Language Recognition) is a language tool that provides a framework for constructing recognizers, compilers, and translators from grammatical descriptions containing C++, Java, or Sather actions. It is similar to the popular compiler generator YACC, however ANTLR is much more powerful and easy to use. ANTLR-produced parsers are not only highly efficient, but are both human-readable and human-debuggable (especially with the interactive ParseView debugging tool). ANTLR can generate parsers, lexers, and tree-parsers in either C++, Java, or Sather. ANTLR is currently written in Java.
Xlit converts text from one writing system into another. It allows the user to define a transliteration simply by typing the input strings in one window and the strings to which they are to be mapped in another. Transliteration may be restricted to regions bounded by specified delimiters or their complements. Transliteration may also be performed by external commands or plugins. Xlit can also convert one type of delimiter to another, e.g. from HZ escapes to XML. Xlit can read and write transliteration definitions in its own format and as Yudit keymaps. It can be run in batch mode without the GUI.
dbacl is a digramic Bayesian text classifier. Given some text, it calculates the posterior probabilities that the input resembles one of any number of previously learned document collections. It can be used to sort incoming email into arbitrary categories such as spam, work, and play, or simply to distinguish an English text from a French text. It fully supports international character sets, and uses sophisticated statistical models based on the Maximum Entropy Principle.
The GNU Talk Filters are filter programs that convert ordinary English text into text that mimics a stereotyped or otherwise humorous dialect. Some of these filters have been in the public domain for many years, but here they are provided as a single integrated package. The filters include austro, b1ff, brooklyn, chef, cockney, drawl, dubya, fudd, funetak, jethro, jive, kraut, pansy, pirate, postmodern, redneck, valspeak, and warez. This package provides the filters both as individual executables and collectively as a C library, so they can be easily embedded in other programs.
Diogenes is a tool for searching and browsing the Latin and ancient Greek texts published on CD-ROM by the Packard Humanities Institute and the Thesaurus Linguae Graecae. It comes as an easy-to-install stand-alone application for GNU/Linux, Mac OS X, and Windows, based on the Firefox browser (i.e. Xulrunner). Alternatively, it can be installed by a network administrator as a server on a local network, and users then access it via an ordinary Web browser. There is also a command-line tool which can optionally format output as LaTeX instead of HTML.
Minpair consists of two programs, a C command-line program and a Tcl/Tk GUI, each of which can independently generate a complete list of minimal pairs (words differing in exactly one segment) for use in linguistic research. The GUI may also be used to control the faster CLI program. Both allow sequences of characters to be defined as single segments. Unicode is fully supported. It is also possible to obtain a list of pairs differing in exactly two positions for use in finding phonological rules.