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ratfor(1) [v7 man page]

RATFOR(1)						      General Commands Manual							 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 iden- tical 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] 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 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 a & in column 1; the option -6x makes the continuation character x and places it in column 6. Ratfor is best used with f77(1). SEE ALSO
f77(1) B. W. Kernighan and P. J. Plauger, Software Tools, Addison-Wesley, 1976. RATFOR(1)

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RATFOR(1)						      General Commands Manual							 RATFOR(1)

NAME
ratfor - ratfor preprocessor for Fortran 77 SYNOPSIS
ratfor [-l n] [-C] [-o outputfile] filename PARAMETERS
-l n Set starting label number. -o output Specify output file; default is stdout. -C Keep comments in (useful for compiler directives). -? Show summary of options. DESCRIPTION
Ratfor has the following syntax: prog: stat prog stat stat: if (...) stat if (...) stat else stat while (...) stat repeat stat repeat stat until (...) for (...;...;...) stat do ... stat switch (intexpr) { case val[,val]: stmt ... default: stmt } break n next n return (...) digits stat { prog } or [ prog ] or $( prog $) anything unrecognizable where stat is any Fortran or Ratfor statement, and intexpr is an expression that resolves into an integer value. A statement is terminated by an end-of-line or a semicolon. The following translations are also performed. < .lt. <= .le. == .eq. != .ne. ^= .ne. ~= .ne. >= .ge. > .gt. | .or. & .and. ! .not. ^ .not. ~ .not. Integer constants in bases other that decimal may be specified as n%dddd... where n is a decimal number indicating the base and dddd... are digits in that base. For bases > 10, letters are used for digits above 9. Examples: 8%77, 16%2ff, 2%0010011. The number is con- verted the equivalent decimal value using multiplication; this may cause sign problems if the number has too many digits. String literals ("..." or '...') can be continued across line boundaries by ending the line to be continued with an underline. The under- line is not included as part of the literal. Leading blanks and tabs on the next line are ignored; this facilitates consistent indenta- tion. include file will include the named file in the input. define (name,value) or define name value defines name as a symbolic parameter with the indicated value. Names of symbolic parameters may contain letters, digits, periods, and underline character but must begin with a letter (e.g. B.FLAG). Upper case is not equivalent to lower case in parameter names. string name "character string" or string name(size) "character string" defines name to be an integer array long enough to accommodate the ASCII codes for the given character string, one per word. The last word of name is initialized to the symbolic parameter EOS, and indicates the end of string. KEYWORDS
ratfor fortran preprocessor fortran77 ratfor77 Jun 1996 RATFOR(1)
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