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Re: two questions

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John W. Krahn
August 5, 2009 07:01
Re: two questions
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Ed Avis wrote:
> sys adm <sysadm <at>> writes:
>> 1. why perl doesn't have a built-in strip() function?
>> each time I need to say $var =~ s/^\s+|\s+//g to strip
> Good question.  Perl 6 is fixing this by adding a 'trim' operator.
> The code I use is
>     for ($var) { s/\A\s+//; s/\s+\z/ }
You have a missing delimiter there.

>> 2. what's the standard module or method to generate a random string, for example
>> the string will be used as part of url.
> If you want to use the string in a URL then it cannot be truly random, because
> not every character can appear in a URL.

That does not make sense.

> Why not just generate a random number and use that as the string?

How is that different?

Those people who think they know everything are a great
annoyance to those of us who do.        -- Isaac Asimov

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