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Re^2: Match/Replace/Interpolate

by toadi (Chaplain)
on Jul 21, 2006 at 08:58 UTC ( #562809=note: print w/ replies, xml ) Need Help??


in reply to Re: Match/Replace/Interpolate
in thread Match/Replace/Interpolate

Hi Corion, thanks for the reply. What do the ! mean instead of the normal / in the regex?



--
My opinions may have changed,
but not the fact that I am right


Comment on Re^2: Match/Replace/Interpolate
Re^3: Match/Replace/Interpolate
by gellyfish (Monsignor) on Jul 21, 2006 at 09:01 UTC

    They don't mean anything special, you can replace the '/' with any other character (or matching pairs of brackets) to improve readability and reduce the requirement for escaping of literal '/' characters in your expression.

    /J\

Re^3: Match/Replace/Interpolate
by Corion (Pope) on Jul 21, 2006 at 09:01 UTC

    The ! are used as alternative delimiters, because you use / within the regular expression. This makes it easy to avoid the escaping of slashes. Instead of \/, I now can write / as it will not be recognized as the regex delimiter anymore.

    perlop has the section on Regexp Quote-like Operators which explains how this works.

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