RATFOR BASICS

You should be able to read Ratfor if you already know Fortran, C, or any similar computer language. The Ratfor processor is not a compiler but a simple word-processing program that converts the Ratfor dialect to Fortran. To maximize your use of Ratfor, you will need to know its rules:

Function Ratfor Fortran90 C

multiple statements May be separated by ``;''. Equivalent Equivalent on one line

do Multi-line statements DO/ END DO construct, Equivalent

bracketed with { }. may be named.

if Multi-line statements Multi-line require THEN/ Equivalent

bracketed { } END IF.

else/ Multiple statements in { } Requires THEN/ELSE Equivalent

else if single statements per THEN/ END IF construct construct do not require {}.

while while() {} DO WHILE()/END DO Equivalent

break if/while break exit Equivalent

iterate do next CYCLE continue

relation operators ==, !=, >, .eq. or ==, /= or .ne. Equivalent

<, >=, > .gt. or >, < or .lt., .ge. or >=, .le. or <=

Comments #, to the end of the is a Same functionality enclosed by

comment with !. /* */

and and or && , || .and., .or. Equivalent

line _ & end of line

continuation delineated with ``;''

for statement for(initial; end; update) Some of the functionality Equivalent possible with DO.