This is Lingua::XFST, version 0.1. Lingua::XFST is a (bare minimum) Perl interface to the Xerox finite state libraries. Full access to the C API is available through Lingua::XFST::Privates, but this requires knowledge on how the C library works, and how SWIG generated interfaces work. Having the Xerox library installed is (obviously) a prerequisite to get this module working. If you don't already have it, you can download it from http://fsmbook.com/. The libraries have to be available both to the linker, and the privates/Makefile.PL script. This latter tries to be clever and looks at LD_LIBRARY_PATH (DYLD_LIBRARY_PATH on OS X) to find the proper path, but if setting the proper env var doesn't work you may have to hack privates/Makefile.PL directly (this is an early version, after all). The source repository is available at https://github.com/arnsholt/Lingua-XFST, patches (and pull requests!), bug reports, feedback welcome.