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Re^3: Split a string based on change of character

by ikegami (Pope)
on Jul 28, 2007 at 15:02 UTC ( #629295=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Split a string based on change of character
in thread Split a string based on change of character

I never thought of

grep $i=!$i,
before. I usually use
grep $i^=$i,

Yours is easier to understand, though.

Update: Yeah, I mean grep $i^=1,.


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Re^4: Split a string based on change of character
by Skeeve (Vicar) on Jul 28, 2007 at 15:28 UTC

    But $i^=$i makes $i 0 at once. So it's different to $i=!$i

    Back in the ancient times of C64 Basic I used j=1-j


    s$$([},&%#}/&/]+}%&{})*;#$&&s&&$^X.($'^"%]=\&(|?*{%
    +.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e

      I think ikegami meant $i^=1, i.e.:

      my @words = grep $i^=1, split /(?<=(.))(?!\1)/, $string;
      which does work.

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