1. Computer Definition [Design?] Language.
A hardware description language.
"Computer Organisation and Microprogramming", Yaohan Chu, P-H 1970.
2. Command Definition Language.
Portion of ICES used to implement commands.
Sammet 1969, p.618-620.
3. Compiler Description Language.
C.H.A. Koster, 1969. Intended for implementation of the rules of an affix grammar by recursive procedures.
A procedure may be a set of tree-structured alternatives, each alternative is executed until one successfully exits.
Used in a portable COBOL-74 compiler from MPB, mprolog system from SzKI, and the Mephisto chess computer.
"CDL: A Compiler Implementation Language", in Methods of Algorithmic Language Implementation, C.H.A. Koster, LNCS 47, Springer 1977, pp.341-351.
"Using the CDL Compiler Compiler", C.H.A. Koster, 1974.
Versions: CDL2, CDLM used at Manchester.
4. Common Design Language.
"Common Design Language", IBM, Software Engineering Inst, Sept 1983.
5. Control Definition Language.
Ideas which contributed to Smalltalk.
["Control Structures for Programming Languges", David A. Fisher, PhD Thesis, CMU 1970].