alex: alex (A tool for generating lexical analysers in Haskell) alex: alex: Alex is a tool for generating lexical analysers in Haskell, given a alex: description of the tokens to be recognised in the form of regular alex: expressions. It is similar to the tool lex or flex for C/C++. alex: alex: This package is part of Haskell Platform. alex: alex: Homepage: https://haskell.org/alex/ alex: alex: