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Re^3: palindrome using regular expressions

by Hofmator (Curate)
on Oct 10, 2006 at 12:11 UTC ( #577386=note: print w/ replies, xml ) Need Help??


in reply to Re^2: palindrome using regular expressions
in thread palindrome using regular expressions

Yes, you are absolutely right. Thanks for the correction.

In fact, I also thought that reverse worked on strings and so I tried print reverse 'hello' which returns hello. From that I (incorrectly) concluded that it doesn't work ... well, got bitten by list context again, print scalar reverse 'hello' does the job OK :)

-- Hofmator

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Re^4: palindrome using regular expressions
by strat (Canon) on Oct 11, 2006 at 07:58 UTC

    exactly.

    reverse is aware of its context; if you use it in string context ($reverse = reverse ...), it reverses the string; but if you use it in list context (print reverse ... or @array = reverse ..), it reverses the list (and does nothing if the list only has one element

    Best regards,
    perl -e "s>>*F>e=>y)\*martinF)stronat)=>print,print v8.8.8.32.11.32"

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