Re^2: Finding the largest word in a string help!

I like this approach, I am trying to exclude the inserting of a break if the string in the sentence its a link starting with "http", it gets complicated I guess:

my $str2 = "Be careful what you wish for you just might get it http://
+www.perlmonks.com/?parent=943112;node_id=3333 ---------------test----
+-------resutls----------!";
(my $break3 = $str2)=~ s/([^http.*?\s+]\S{30})/$1 /g;
print "\n\n$break3\n\n";
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Comment on Re^2: Finding the largest word in a string help! Download Code

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Re^3: Finding the largest word in a string help! by Anonymous Monk on Dec 13, 2011 at 09:24 UTC
I like this approach, I am trying to exclude the inserting of a break if the string in the sentence its a link starting with "http", it gets complicated I guess: Um, are you trying to invent the syntax or guess? This is your regex use YAPE::Regex::Explain; print YAPE::Regex::Explain ->new( qr/([^http.?\s+]\S{30})/ )->explain; __END__ The regular expression: (?-imsx:([^http.?\s+]\S{30})) matches as follows: NODE EXPLANATION ---------------------------------------------------------------------- (?-imsx: group, but do not capture (case-sensitive) (with ^ and $ matching normally) (with . not matching \n) (matching whitespace and # normally): ---------------------------------------------------------------------- ( group and capture to \1: ---------------------------------------------------------------------- [^http.?\s+] any character except: 'h', 't', 't', 'p', '.', '', '?', whitespace (\n, \r, \t, \f, and " "), '+' ---------------------------------------------------------------------- \S{30} non-whitespace (all but \n, \r, \t, \f, and " ") (30 times) ---------------------------------------------------------------------- ) end of \1 ---------------------------------------------------------------------- ) end of grouping ---------------------------------------------------------------------- [download] Neither approach is going to work Try `s{(\S{30,}){ my $ret = $1; if( $ret !~ /http/ ){ $ret .= " "; } $ret; }ge;` [download] see also perlintro, perlretut, perlre#(?<!pattern)	[reply] [d/l] [select]

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Re^3: Finding the largest word in a string help!
by Anonymous Monk on Dec 13, 2011 at 09:24 UTC

I like this approach, I am trying to exclude the inserting of a break if the string in the sentence its a link starting with "http", it gets complicated I guess:

Um, are you trying to invent the syntax or guess?

This is your regex

use YAPE::Regex::Explain;
print YAPE::Regex::Explain ->new(
    qr/([^http.*?\s+]\S{30})/
)->explain;
__END__
The regular expression:

(?-imsx:([^http.*?\s+]\S{30}))

matches as follows:
  
NODE                     EXPLANATION
----------------------------------------------------------------------
(?-imsx:                 group, but do not capture (case-sensitive)
                         (with ^ and $ matching normally) (with . not
                         matching \n) (matching whitespace and #
                         normally):
----------------------------------------------------------------------
  (                        group and capture to \1:
----------------------------------------------------------------------
    [^http.*?\s+]            any character except: 'h', 't', 't',
                             'p', '.', '*', '?', whitespace (\n, \r,
                             \t, \f, and " "), '+'
----------------------------------------------------------------------
    \S{30}                   non-whitespace (all but \n, \r, \t, \f,
                             and " ") (30 times)
----------------------------------------------------------------------
  )                        end of \1
----------------------------------------------------------------------
)                        end of grouping
----------------------------------------------------------------------
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Neither approach is going to work

Try

s{(\S{30,}){
    my $ret = $1;
    if( $ret !~ /http/ ){
        $ret .= " ";
    }
    $ret;
}ge;
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