This is especially interesting for lexical analysis ("lexing") where input files can be exuberant, e.g. SQL dumps weighing hundreds of Megabytes.
The package contains a usage example, GRAYLEX-M4-EXAMPLE and the project cl-m4 demonstrates real-world usage.
Categories: lexer, Gray streams
Author: Alexander Kahl
Source repository: http://github.com/e-user/graylex.