[Pdx-pm] evil @ARGV syntax

[Michael Rasmussen]

Michael G Schwern wrote:
> It also doesn't say much about regular expressions, threading, 
> object-oriented programming or EBCDIC.
> 
> NAME
>        perlvar - Perl predefined variables
> 
> DESCRIPTION
>        Predefined Names
> 
>        The following names have special meaning to Perl.

For a topic that confuses new Perl folk this would seem to be something
that should be covered at every available opportunity.  The section on
@ARGV does cover the $# issue:

  @ARGV   The array @ARGV contains the command-line arguments intended
          for the script.  $#ARGV is generally the number of arguments
          minus one, because $ARGV[0] is the first argument, not the 
          program’s command name itself.  See $0 for the command name.

It's incredible easy to expand that to:

  @ARGV   The array @ARGV contains the command-line arguments intended
          for the script. @ARGV evaluated in a scaler context returns
          the number of arguments.  $#ARGV is generally the number of
          arguments minus one, because $ARGV[0] is the first argument,
          not the program’s command name itself.  See $0 for the
          command name.

Which would be a GoodThing considering the trouble that people have 
with the issue.


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    Michael Rasmussen, Portland Oregon  
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