Are all programming languages in the public domain?

ICI is a C-like, high level language originally developed by Tim Long and placed into the public domain. ICI marries C's expression syntax, control ... With programs that are not overly performance critical or are I/O bound ICI makes a useful alternative to compiled languages. read more

The line between domain-specific languages and scripting languages is somewhat blurred, but domain-specific languages often lack low-level functions for filesystem access, interprocess control, and other functions that characterize full-featured programming languages, scripting or otherwise. read more