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1.1     ! root        1: .TH EFL 1 "14 September 1979"
        !             2: .SH NAME
        !             3: efl \- Extended Fortran Language
        !             4: .SH SYNOPSIS
        !             5: .B efl
        !             6: [ option ... ]
        !             7: [ filename ... ]
        !             8: .SH DESCRIPTION
        !             9: .I Efl
        !            10: compiles a program written in the EFL language into clean Fortran.
        !            11: .I Efl
        !            12: provides the same control flow constructs as does
        !            13: .IR ratfor (1),
        !            14: which are essentially identical to those in C:
        !            15: .TP
        !            16: statement grouping with braces;
        !            17: decision-making with if, if-else, and switch-case;
        !            18: while,
        !            19: for,
        !            20: Fortran do,
        !            21: repeat,
        !            22: and repeat...until loops;
        !            23: multi-level break and next.
        !            24: In addition, EFL has C-like data structures,
        !            25: and more uniform and convenient input/output syntax,
        !            26: generic functions.
        !            27: EFL also provides
        !            28: some syntactic sugar to make programs easier to read and write:
        !            29: .TP
        !            30: free form input:
        !            31: multiple statements/line; automatic continuation
        !            32: statement label names (not just numbers),
        !            33: .TP
        !            34: comments:
        !            35: # this is a comment
        !            36: .TP
        !            37: translation of relationals:
        !            38: >, >=, etc., become .GT., .GE., etc.
        !            39: .TP
        !            40: return (expression)
        !            41: returns expression to caller from function
        !            42: .TP
        !            43: define:
        !            44: define name replacement
        !            45: .TP
        !            46: include:
        !            47: include filename
        !            48: .PP
        !            49: .fi
        !            50: The Efl command option
        !            51: .B \-w
        !            52: suppresses warning messages.
        !            53: The option
        !            54: .B \-C
        !            55: causes comments to be copied through to the Fortran output (default);
        !            56: .B \-#
        !            57: prevents comments from being copied through.
        !            58: If a command argument contains an embedded equal sign,
        !            59: that argument is treated as if it had appeared in an
        !            60: .B option
        !            61: statement at the beginning of the program.
        !            62: .I Efl
        !            63: is best used with
        !            64: .IR f77 (1).
        !            65: .SH "SEE ALSO"
        !            66: f77(1),
        !            67: ratfor(1).
        !            68: .br
        !            69: S. I. Feldman,
        !            70: .IR "The Programming Language EFL",
        !            71: Bell Labs Computing Science Technical Report #78.

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