OpenEdge ABL is an open source programming language created in 2006.

OpenEdge Advanced Business Language, or OpenEdge ABL for short, is a business application development language created and maintained by Progress Software Corporation (PSC). The language, typically classified as a fourth-generation programming language, uses an English-like syntax to simplify software development. The language was called PROGRESS or Progress 4GL up until version 9, but in 2006 PSC changed the name to OpenEdge Advanced Business Language (OpenEdge ABL) in order to overcome a presumed industry perception that 4GLs were less capable than other languages. Read more on Wikipedia...

• OpenEdge ABL Wikipedia page
• There are at least 72 OpenEdge ABL repos on GitHub
• OpenEdge ABL first developed in Progress Software Corporation
• file extensions for OpenEdge ABL include p, cls and w
• The Google BigQuery Public Dataset GitHub snapshot shows 2k users using OpenEdge ABL in 3k repos on GitHub
• Pygments supports syntax highlighting for OpenEdge ABL
• GitHub supports syntax highlighting for OpenEdge ABL
• See also: (2 related languages)SQL, ISBN