Re: [MacPerl] Location of MAIN code relative to subroutines

["Paul J. Schinder" <schinder@pobox.com>]

On Tue, Apr 27, 1999 at 11:41:32AM -0600, Ero Brown wrote:
} 
} I seem to ben having a problem regarding the placement of "MAIN"
} code relative to subroutines.
} 
} When I execute the following script, the variable $TIME_OFFSET
} doesn't seem to have value in the "ParseFile" subroutine.
} 
} However, if I move the location of my "MAIN" code (or actually
} just the code snip in "MAIN" where $TIME_OFFSET is defined) to
} a position before my subroutines, this script appears to work
} correctly.
} 
} Is this a MacPerl bug, or am I missing something here?
} I'm currently using MacPerl 5.2.0r4.

You're missing something.  From perlsub (I don't remember what Shuck
calls it):


     Unlike dynamic variables created by the "local" operator,
     lexical variables declared with "my" are totally hidden from
     the outside world, including any called subroutines (even if
     it's the same subroutine called from itself or elsewhere--
     every call gets its own copy).

$TIME_OFFSET only exists from the point you declare it to the end of
the file.  The subroutines never see it.


} 
} Thanks,
} 
} Ero Brown
} 

-- 
Paul Schinder
schinder@pobox.com

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