Factor is an open source programming language created in 2003 by Slava Pestov.
git clone https://github.com/factor/factor
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Factor is a stack-oriented programming language created by Slava Pestov. Factor is dynamically typed and has automatic memory management, as well as powerful metaprogramming features. The language has a single implementation featuring a self-hosted optimizing compiler and an interactive development environment. Read more on Wikipedia...
IN: main USE: io "Hello, world!" print
USING: io ; "Hello World" print
: make-html ( string -- xml ) dup <XML <html> <head><title><-></title></head> <body><h1><-></h1></body> </html> XML> ;