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Annotation of 43BSDReno/pgrm/ratfor/ratfor.1, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1990 Regents of the University of California.
                      2: .\" All rights reserved.  The Berkeley software License Agreement
                      3: .\" specifies the terms and conditions for redistribution.
                      4: .\"
                      5: .\"     @(#)ratfor.1   6.4 (Berkeley) 7/24/90
                      6: .\"
                      7: .Dd July 24, 1990
                      8: .Dt RATFOR 1
                      9: .Os ATT 7th
                     10: .Sh NAME
                     11: .Nm ratfor
                     12: .Nd rational Fortran dialect
                     13: .Sh SYNOPSIS
                     14: .Nm ratfor
                     15: .Op Ar option ...
                     16: .Op Ar filename ...
                     17: .Sh DESCRIPTION
                     18: .Nm Ratfor
                     19: converts a rational dialect of Fortran into ordinary irrational Fortran.
                     20: .Nm Ratfor
                     21: provides control flow constructs essentially identical to those in C:
                     22: .Tw Fl
                     23: .Tp statement grouping:
                     24: { statement; statement; statement }
                     25: .Tp decision-making:
                     26: .Ds I
                     27: if (condition) statement { else statement }
                     28: switch (integer value) {
                     29: \tcase integer:        statement
                     30: \t...
                     31: \t[default]: statement
                     32: }
                     33: .De
                     34: .Tp loops:
                     35: .Ds L
                     36: while (condition) statement
                     37: for (expression; condition; expression) statement
                     38: do limits statement
                     39: repeat statement [until (condition)]
                     40: break
                     41: next
                     42: .De
                     43: .Tp
                     44: .Pp
                     45: and some syntactic sugar to make programs easier to read and write:
                     46: .Tw Fl
                     47: .Tp free form input:
                     48: multiple statements/line; automatic continuation
                     49: .Tp comments:
                     50: # this is a comment
                     51: .Tp translation of relationals:
                     52: >, >=, etc., become .GT., .GE., etc.
                     53: .Tp return (expression)
                     54: returns expression to caller from function
                     55: .Tp define:
                     56: define name replacement
                     57: .Tp include:
                     58: include filename
                     59: .Tp
                     60: .Pp
                     61: .Nm Ratfor
                     62: is best used with
                     63: .Xr f77  1  .
                     64: .Sh SEE ALSO
                     65: .Xr f77 1
                     66: .br
                     67: B. W. Kernighan and P. J. Plauger,
                     68: .Em Software Tools ,
                     69: Addison-Wesley,
                     70: 1976.
                     71: .Sh HISTORY
                     72: .Nm Ratfor
                     73: appeared in Version 7 AT&T UNIX.

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