LIL (short for Little Interpreted Language) is a small, highly dynamic scripting language designed to be easily embedded in existing applications. LIL is inspired from (and looks very similar to) Tcl, although it is much smaller in scope and has several differences that make it incompatible with Tcl.
At the moment there are two implementation of LIL, one in C called C LIL which is also the reference implementation and one in Free Pascal called FPLIL. Both are available in this repository. The C version is just a pair of files (a source code file and a header file) whereas the Free Pascal version is a single unit file with an optional package for Lazarus.