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in reply to leaving only [a-zA-Z0-9]

you can also use $a =~ s/\W//g;

If you use locales; it supports special chars too.

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Re: Re: leaving only [a-zA-Z0-9]
by Happy-the-monk (Canon) on Mar 21, 2004 at 14:18 UTC

    you can also use $a =~ s/\W//g;

    make that   s/[\W_]//g;   to take away the   _   too.

    And careful with   locale!   That will not get rid of Umlauts and word characters with accents and such. It will still get rid of special characters though.

    Sören

[reply]
      "That will not get rid of Umlauts and word characters with accents and such." - that are the specialchars I've meant.
      Sorry I should have been more detailed in my explanation.
[reply]

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