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Re: Removing whitespace

by Molt (Chaplain)
on May 07, 2002 at 13:12 UTC ( #164625=note: print w/replies, xml ) Need Help??

in reply to Removing whitespace

Okay, I'm about to break the habit of a lifetime and answer this. I think your initial post on this matter was here. If it isn't your post it's still the same basic question so your answer should be there.

Now I've been useful a couple of hints. If you're going to be asking questions it's worth registering a username so you can easily go back and view your own posts, and also it's definitely worth noting down useful tips in a notebook or something (Yes, a paper one. No CPU needed).

Now for a quick check.. I think you've managed to mangle your question somewhere, or do you really have an enviroment variable called (not 'with the value of', but called) 'Mike Wallace'?

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Re: Re: Removing whitespace
by particle (Vicar) on May 07, 2002 at 14:00 UTC
    actually, the poster specified (my code tags for clarity) $user = $ENV {'Mike', 'Wallace'};, which is not a valid way to recover a single key from %ENV.

    either he's looking for an array of environment vars (not likely), in which case he'd specify @ENV, or he's looking for a key named Mike', 'Wallace (which is valid on Win32,) which is referenced by $ENV{'Mike\', \'Wallace'}. NOTE: this is platform specific--i can't find a way to set an environment variable with quotes on solaris or cygwin.

    either way, Anonymous Monk probably meant what you said.

    ~Particle *accelerates*

      It is a valid way, and is Perl's way of doing 'Multidimensional hashes' without hitting hashes of hashes. Admittedly $; isn't normally space, but such is.

      In Programming Perl 2nd Ed this is all on Page 133, my 3rd Ed. is at home at the moment I'm afraid so I can't give page reference in that.

      The following code actually works.. which is somewhat scary when it's simply not What You Mean, as I don't think it is in this case.

      #!/usr/bin/perl -w use strict; $ENV{'Paul', 'Golds'} = 'Molt'; print $ENV{'Paul', 'Golds'};

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