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Re: Pattern matching forwards/backwards???

by Crian (Chaplain)
on Jun 15, 2009 at 11:00 UTC ( #771613=note: print w/replies, xml ) Need Help??


in reply to Pattern matching forwards/backwards???

1. /\QXFGHWW\E/

2. /([^-.]{3})/

together:

$_ = 'KLEWREGREG-----REGREGEWD....-EWGREGERABCSHRE..----...XFGHWW'; /([^-.]{3})[-.]*\QXFGHWW\E/; print $1;

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Re^2: Pattern matching forwards/backwards???
by JavaFan (Canon) on Jun 15, 2009 at 11:03 UTC
    That assumes there are no dashes and dots between the three letters searched for. It would fail on:
    $_ = 'A-BCXFGHWW';
      A small change and it will work again:
      $_ = 'A-BCXFGHWW'; print join '', m/([^-.])[-.]*([^-.])[-.]*([^-.])[-.]*\QXFGHWW\E/;

      CountZero

      A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

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[choroba]: Corion A colleague has helped me. It seems the "Modification of read-only value" was caused by old Test::More version which doesn't have done_testing, plus the old bug with $@ sometimes showing a different exception
[choroba]: will upload a fixed version and see
[Corion]: choroba: Ah, OK - sounds like a really weird combination :)

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