jackassplus wrote:
>>> $data =~ s{ (?<! \n ) \n (?! \n ) }{}gmsx;
>
> I have no Idea what that is supposed to do.
It removes all singly occurring newlines.
This is a negative, zero-width, look-behind assertion (?<! \n ) It
means that the variable does not match what it contains, in this case a
newline, before the match but do not include what it matches in the match.
This is a negative, zero-width, look-ahead assertion (?! \n ) It means
that the variable does not match what it contains after the match but do
not include what it matches in the match.
See `perldoc perlre` and search for /Extended Patterns/
or http://perldoc.perl.org/perlre.html#Extended-Patterns
--
Just my 0.00000002 million dollars worth,
Shawn
Programming is as much about organization and communication
as it is about coding.
I like Perl; it's the only language where you can bless your
thingy.
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