PFORT
FORTRAN66 Verifier

PFORT is a FORTRAN66 program which reads a user program and produces a report on violations of the FORTRAN66 standard.

Don't be surprised if every line of your program is in violation! FORTRAN66

• expected only upper case alphabetical characters;
• only allowed a very few non-alphanumeric characters;
• required identifiers to be 6 characters in length or less;
• did not allow the PROGRAM statement, the IMPLICIT statement, the DO WHILE statement;
• did not support CHARACTER variables;
• did not support quoted strings. In particular, strings to be printed had to be delimited using a "Hollerith" count.

Usage:

pfort < file.f

file.f

the user file to be checked.

Related Data and Programs:

CLEAN77 is a FORTRAN77 program which can reformat a FORTRAN77 file, using some standard indenting and numbering conventions.

Reference:

1. Barbara Ryder,
   The PFORT verifier,
   in Software: Practice and Experience,
   Volume 4, Number 4, 1974, pages 359-377.
2. Barbara Ryder, Andrew Hall,
   The PFORT verifier,
   Bell Laboratories Computer Science Technical Report,
   Number 12, 1975.

Source Code:

• pfort.f, the source code.
• pfort.csh, commands to compile the source code.

Examples and Tests:

• hello.f66, a FORTRAN66 file.
• hello_f66.txt, the report generated by the command "pfort < hello_f66.txt".
• hello.f, a FORTRAN77 file.
• hello_f.txt, the report generated by the command "pfort < hello_f.txt".

You can go up one level to the FORTRAN77 source codes.