comment on

>perl -wMstrict -le
"my $line = 'Hello hello START this is comment END '
          . 'START this is still comment END '
          . 'START this should still be comment END '
          . 'this is fixed'
          ;
 ;;
 my $START   = qr{ START \s* \K }xms;
 my $END     = qr{ (?= \s* END) }xms;
 my $not_end = qr{ (?! $END) .  }xms;
 ;;
 my ($extract) =
   $line =~ m{ $START $not_end* should $not_end* $END }xmsg;
 print qq{[[$line]]};
 print qq{'$extract'};
"
[[Hello hello START this is comment END START this is still comment
END START this should still be comment END this is fixed]]
'this should still be comment'
[download]

In reply to Re: extract a substring between two emements by AnomalousMonk
in thread extract a substring between two emements by Shaveta_Chawla

Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
Want more info? How to link or How to display code and escape characters are good places to start.


go ahead... be a heretic
	PerlMonks