S-Lang is a C programmer's library that includes routines for the rapid development of sophisticated, user friendly, multi-platform applications. The S-Lang library includes the following: -Low level tty input routines for reading single characters at a time. -Keymap routines for defining keys and manipulating multiple keymaps. -High level screen management routines for manipulating both monochrome and color terminals. These routines are very efficient. -Low level terminal-independent routines for manipulating the display of a terminal. -Routines for reading single line input with line editing and recall capabilities. -Searching functions: both ordinary searches and regular expression searches. -An embedded stack-based language interpreter with a C-like syntax. -A malloc debugging package WWW: http://www.s-lang.org/