1EFL(1)                      General Commands Manual                     EFL(1)
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NAME

6       efl - Extended Fortran Language
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SYNOPSIS

9       efl [ option ... ] [ filename ... ]
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DESCRIPTION

12       Efl  compiles a program written in the EFL language into clean Fortran.
13       Efl provides the same control flow constructs as does ratfor(1),  which
14       are essentially identical to those in C:
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16       statement grouping with braces;
17              decision-making  with  if, if-else, and switch-case; while, for,
18              Fortran do, repeat, and repeat...until loops; multi-level  break
19              and next.  In addition, EFL has C-like data structures, and more
20              uniform and convenient input/output syntax,  generic  functions.
21              EFL  also  provides some syntactic sugar to make programs easier
22              to read and write:
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24       free form input:
25              multiple statements/line; automatic continuation statement label
26              names (not just numbers),
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28       comments:
29              # this is a comment
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31       translation of relationals:
32              >, >=, etc., become .GT., .GE., etc.
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34       return (expression)
35              returns expression to caller from function
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37       define:
38              define name replacement
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40       include:
41              include filename
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43       The  Efl  command option -w suppresses warning messages.  The option -C
44       causes comments to be copied through to the Fortran  output  (default);
45       -#  prevents comments from being copied through.  If a command argument
46       contains an embedded equal sign, that argument is treated as if it  had
47       appeared  in  an option statement at the beginning of the program.  Efl
48       is best used with f77(1).
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SEE ALSO

51       f77(1), ratfor(1).
52       S. I. Feldman, The Programming Language EFL, Bell Labs  Computing  Sci‐
53       ence Technical Report #78.
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577th Edition                     April 29, 1985                          EFL(1)