o42a is a high-level general purpose programming language. It is:

• compiled,
• statically-typed,
• prototype-based,
• logic-driven, and
• primarily declarative, while
• the imperative programming style is also supported.

The program written in o42a is closer to natural English text than one written in any C-like programming language.

The language is designed with programming productivity and code maintainability as main priorities. This achieved by

• powerful, yet restrained, semantics, and
• expressive and natural syntax.

A prototype of compiler is under development. This compiler is written in Java and uses LLVM for executable code generation.

The implementation status is draft. The majority of the language features are already in place. The development currently focused on compiler stability, testing and implementation of the missing features.

Here is a “Hello, World!” program written in o42a:

Use namespace 'Console'.
 
@Main := * {
  Print "Hello, World!" nl.
}

The o42a compiler and source code are available under the terms of GNU General Public License, version 3.