Factor

Factor is an open source programming language created in 2003 by Slava Pestov.

Source code:

git clone https://github.com/factor/factor

#248on PLDB

21Years Old

201Repos

Try now: Riju · TIO

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...

Factor website
Factor Wikipedia page
Factor is developed on GitHub and has 1,282 stars
There are at least 201 Factor repos on GitHub
Factor first developed in https://github.com/factor
file extensions for Factor include factor
Factor on Twitter
The Google BigQuery Public Dataset GitHub snapshot shows 110 users using Factor in 111 repos on GitHub
There are 50 Project Euler users using Factor
Explore Factor snippets on Rosetta Code
Factor appears in the TIOBE Index
CodeMirror package for syntax highlighting Factor
Pygments supports syntax highlighting for Factor
GitHub supports syntax highlighting for Factor
factorcode.org was registered in 2005
See also: (17 related languages)Linux, Joy, Forth, Lisp, Self, Java, Scheme, C, Java Bytecode, Reverse Polish notation, XML, OpenGL, PostgreSQL, SQLite, Objective-C, Fortran, Smalltalk
Read more about Factor on the web: 1.

Example from Riju:

IN: main
USE: io

"Hello, world!" print

Example from hello-world:

USING: io ;
"Hello World" print

Example from Wikipedia:

: make-html ( string -- xml )
    dup
    <XML
        <html>
            <head><title><-></title></head>
            <body><h1><-></h1></body>
        </html>
    XML> ;

Feature	Supported	Token	Example
Strings	✓	"	"Hello world"
Print() Debugging	✓	print
Macros	✓
Garbage Collection	✓
Comments	✓
Semantic Indentation	X

Factor - Programming language

Language features