Conca is a concatenative programming language; it is also an interpreter for that language.
It is similar to Joy and Cat.
Cat - http://www.cat-language.com/
Joy - http://en.wikipedia.org/wiki/Joy_(programming_language)
One of the major differences is how a new function (word) is defined.
Note that Conca thinks that the back slash cahracter is used to escape special characters, like "\n" for line feed. When you load a file, use forward slashes or escape the back slashes. Example: "C:/Users/john/Dev/prog.conca" load