AsciiDoc – text document format for writing

AsciiDoc is a lightweight markup language for writing notes, documentation, articles, books, ebooks, slideshows, web pages, man pages and blogs. It’s a plain text human readable/writable document format that dates back to 2002.

AsciiDoc is highly configurable: both the AsciiDoc source file syntax and the backend output markups (which can be almost any type of SGML/XML markup) can be customized and extended by the user.