Factor

Factor (http://factorcode.org) is an expressive, fast and full-featured Concatenative language invented by Slava Pestov. The Factor implementation is released under a BSD license and runs on most common platforms.

Factor has been in development for more than five years, with a strong focus on practical programming all the way through; it began as a scripting language for a game. Factor has a small but friendly and vibrant community, and it is easy to learn.

• Binary packages are available from http://factorcode.org
• Why Factor?
• History
• Learning Factor

Features:

• The language
• The implementation
• The environment
• The library

Development:

• GIT repository
• Build farm
• Goals
• Design issues
• To do - find out what's planned
• Brainstorming
• Bug reports
• Wish list
• Deployment
• Contributing
• Optimization

Community:

• Users
• Concatenative IRC channel
• Mailing list
• Planet Factor - community blogs

External resources:

• Wikipedia article about Factor