CCITT High Level Language

Better known by the acronym CHILL, the CCITT High Level Language is a structured procedural programming language especially developed to program telephone exchanges and other communication equipment with, originally developed by CCITT and the first full specification was published in 1980. It is somewhat Pascal like and shows some similarity in structure to Ada that was being developed in a similar timeframe.

OS/2 CHILL implementations

• GCC - GCC dropped CHILL support in 1999 but the OS/2 version did so even earlier, you may have to track down some ancient EMX port collection to actually find the CHILL port - Open source - Discontinued

Text editor support

• jEdit - Java based editor - CHILL syntax highlighting built in - Current

Links & publications

• The official specifiaction from CCITT - Downloadable in PDF format
• Alton L. Brintzenhoff, Steven W. Christensen, David T. Moore and J. Marc Stonebraker: Evaluation of Ada as a Communications Programming Language - 1981 - Examines the usefulness of Ada vis a vis CHILL.