Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
What is the coolest way of trimming leading and trailing whitespace from a multiline string?
(by 'coolest' i mean mean and lean. By 'mean' i mean the mean betwen clean and efficient. By 'clean' i mean: "simple and streamlined in design"). Tnx -- allan
Update: 1: $c =~ s/^\s+//; $c =~ s/\s+$//; This does precicely what i initially asked for

2: $c =~ s/^\s*(.*?)\s*$/$1/gm; As above, but also trims "intermediate lines" for leading & trailing WS, -- that's also very usefull to me.

3: $c =~s/\s*\n\s*/\n/g; $c =~ s/^[\t\ ]+//gm; $c =~s/[\t\ ]+$//gm;
Same as 2 but don't trim leading & trailing \n
That's not what i need for this specific solution.

Thanks again fellow monks, for fast & usefull guidelines
As the eternal tranquility of Truth reveals itself to us, this very place is the Land of Lotuses -- Hakuin Ekaku Zenji

20050330 Janitored by Corion: Closing code tags are spelled </code>

In reply to trim leading & trailing whitespace by ady

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others avoiding work at the Monastery: (4)
    As of 2018-04-23 23:52 GMT
    Find Nodes?
      Voting Booth?