ratfor(1)
NAME
ratfor − rational Fortran dialect
SYNTAX
ratfor [ option... ] [ filename... ]
DESCRIPTION
The ratfor command converts a rational dialect of Fortran into an ordinary irrational dialect of Fortran. The ratfor command 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 [n]
next [n]
The ratfor command makes programs easier to read and write
by providing the following:
free form input:
multiple statements/line; automatic continuation
comments:
# this is a comment
translation of relationals:
>, >=, and so on, become .GT., .GE., and so on
return (expression)
returns expression to caller from function
define:
define name replacement
include:
include filename
The option −h causes quoted strings to be turned into 27H constructs. −C copies comments to the output, and attempts to format it neatly. Normally, continuation lines are marked with an & in column 1; the option −6x makes the continuation character x and places it in column 6.
The ratfor command is best used with f77(1).