in reply to string manipulation question

I dunno if this more readable or not, but anyway: 
  my $str = "a load of constant stuff..."
          . ($option && "optional bit in the middle ")
          . "loads more stuff";

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update: Ofcourse davorg is correct. Why do I never learn to test my code before posting! :)

$option = 0;     # Prints out the 0, not good.
$option = "";    # This works.
$option = undef; # Warnings with -w

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/dempa

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Re: Re: string manipulation question
by davorg (Chancellor) on May 18, 2001 at 17:36 UTC

    Depends what you set $option when you don't want the text included. Try it with 0 and see what happens.

    --
    <http://www.dave.org.uk>

    "Perl makes the fun jobs fun
    and the boring jobs bearable" - me

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Re: Re: string manipulation question
by Anonymous Monk on May 18, 2001 at 19:06 UTC
    of course you could write 
     
    my $str = "a load of constant stuff..."
            . (defined($option) && "optional bit in the middle ")
            . "loads more stuff";

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[reply]
[d/l]
      !! does wonders too.
            my $str = "a load of constant stuff..."
              . (!!$option && "optional bit in the middle ")
              . "loads more stuff";

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[reply]
[d/l]
        Aaah! I didn't know that trick. It's been said before and I'll say it again: You learn something new every day on PerlMonks.org. :)
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