| Developer | Brian Kernighan |
|---|---|
| First appeared | 1976 |
| Website | sepwww.stanford.edu |
| Influenced by | |
| Fortran, C | |
Ratfor (short for Rational Fortran) is a programming language implemented as a preprocessor for Fortran 66. It provides modern control structures, unavailable in Fortran 66, to replace GOTOs and statement numbers.