The GNU Readline library (http://tiswww.tis.case.edu/~chet/readline/rltop.html) provides a set of functions for use by applications that allow users to edit command lines as they are typed.
The Readline Library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.
