FORTRAN in Fortran: A FORTRAN I transpiler, written in Fortran 2008. Translates FORTRAN I code to ANSI C. Please see the lecture on nostalgic programming in Fortran for further information. The details of the language are specified in the Programmer’s Reference Manual from 1956.

Use the provided Makefile to build the transpiler:

$ make

Or, run GNU Fortran directly:

$ gfortran -o compiler compiler.f90

Compile your FORTRAN I code with:

$ ./compiler <input> <output>

For instance:

$ ./compiler average.f average
$ ./average
3
10.0 12.2 17.8
 10.000
 12.200
 17.800
AVERAGE:  13.333

Copyright © 2018, Brandon Bohrer. Licenced under MIT.