The S-Lang programming library with utf8 support S-Lang is a C programmer's library that includes routines for the rapid development of sophisticated, user friendly, multi-platform applications. This package contains only the shared library libslang.so.* and copyright information. It is only necessary for programs that use this library (such as jed and slrn). If you plan on doing development with S-Lang, you will need the companion -dev package as well. This packages has wide character support.