CLEF(ID:2339/cle003)

for COBOL Language Enhancement Facility

extension system for COBOL to permit dialects to interoperate
Related languages
MCOBOL => CLEF   Evolution of
References:
  • Yow. J.F.S. The design and implementation of a COBOL compiler with a macro facility. M. Sc. Th., Computation Dept, Univ. Manchester Inst. of Science and Technology. Manchester, England, 1979. view details
  • Triance J.M. and Layzell, P.J. "CLEF - A COBOL Language Enhancement Facility", Computation Dept. Report 273, University of Manchester Institute of Science and Technology, December 1982. view details
  • Layzell, P.Z. "The History of Macro-Processors in Programming Language Extensibility" view details
          in The Computer Journal 28(1) January 1985 view details
  • Triance, JM and Layzell, PJ "A language enhancement facility for COBOL - its design and implementation" pp128-133 view details Abstract: A working party of the British Computer Society has designed a facility which allows users to configure their COBOL compilers to accept different dialects of COBOL. The facility, known as the COBOL Language Enhancement Facility (CLEF), was produced in response to users' requirements to enhance their versions of COBOL. This paper reviews the development of CLEF: looking at the users' requirements, identifying design criteria and outlining the design, implementation and evaluation of CLEF External link: Online copy
          in The Computer Journal 28(2) May 1985 view details