1. A polymorphic language being developed by Stephen Crawley <sxc@itd.dtso.oz.au> of Defence Science & Tech Org, Australia. Alex has abstract data types, type inference and inheritance.

2. An iswim-like language with exception handling.

["An Exception Handling Construct for Functional Languages", M. Brez et al, in Proc ESOP88, LNCS 300, Springer 1988].

3. A scanner generator. alexis is its input language.

["Alex: A Simple and Efficient Scanner Generator", H. Mossenbock, SIGPLAN Notices 21(5), May 1986].