extended fortran language

from The Free On-line Dictionary of Computing (8 July 2008)

Extended Fortran Language
EFL

   (EFL) A {Fortran} {preprocessor} to provide {structured
   programming} constructs much like {C}.  EFL is a descendant of
   {RATFOR}.  It is written in C.

   ["An Informal Description of EFL", S.I. Feldman].