Small command-line editor; biggest limitation is it only handles 80-character lines.
This is a line-editing library. It can be linked into almost any program to provide command-line editing and recall. This code has been untouched, but still working, since 1993.
It is call-compatible with the FSF readline library. It is a fraction of the size, and offers far fewer features. It is distributed under the Apache v2 license.
Configuration is done in the Makefile. Type "make testit" to get a small "shell" for testing.