In our professional software development, we have focused on finding ways to help developers work more effectively. Despite the range of programming languages available today, we are still limited by them. It makes sense to extend the existing languages to create more domain-oriented ones, which allow writing programs on a higher level and in a manner that is more natural to each domain. With an instrument that allows creating language constructs as simple as creating classes or methods is in a conventional language, you can significantly change the way you develop software. This new style of programming, when you create specialized languages, use them to develop software, and extend them when and how required, is called Language Oriented Programming (LOP). MPS Story Meta Programming System started in 2003 as a research project. In 2004, its underlying concepts were described in the Language Oriented Programming article.
Leo is... * A general data management environment. Leo shows user-created relationships among any kind of data: computer programs, web sites, etc. Leo shows multiple views of data within a single outline. * An outlining editor for programmers. Leo supports optional noweb and CWEB markup. * A flexible browser for projects, programs, classes or any other data. * A project manager. * Fully scriptable using Python. * Leo's outline files are XML format.