4.3BSD - /usr/man/cat1/ratfor.0

RATFOR(1)                                                            RATFOR(1)


NAME
       ratfor - rational Fortran dialect

SYNOPSIS
       ratfor [ option ... ] [ filename ... ]

DESCRIPTION
       Ratfor  converts a rational dialect of Fortran into ordinary irrational
       Fortran.  Ratfor provides control flow constructs essentially identical
       to those in C:

       statement grouping:
              { statement; statement; statement }

       decision-making:
              if (condition) statement [ else statement ]
              switch (integer value) {
                   case integer:  statement
                   ...
                   [ default: ]   statement
              }

       loops: while (condition) statement
              for (expression; condition; expression) statement
              do limits statement
              repeat statement [ until (condition) ]
              break
              next

       and some syntactic sugar to make programs easier to read and write:

       free form input:
              multiple statements/line; automatic continuation

       comments:
              # this is a comment

       translation of relationals:
              >, >=, etc., become .GT., .GE., etc.

       return (expression)
              returns expression to caller from function

       define:
              define name replacement

       include:
              include filename

       Ratfor is best used with f77(1).

SEE ALSO
       f77(1)
       B.  W.  Kernighan  and  P.  J. Plauger, Software Tools, Addison-Wesley,
       1976.


7th Edition                     April 29, 1985                       RATFOR(1)