I'm surprised that everyone (including the FAQ) missed the most obvious solution which uses an alternation. Most other solutions seem to forget that the $ anchor is right before the trailing newline. :)
$string =~ s/^\s+|\s+$//gm;
If you want to preserve blank lines, it's a tiny bit longer.
s/^[\t\f ]+|[\t\f ]+$//mg;
Remember: in Perl, the common things are supposed to be easy, so if you're doing something common and it's not easy, you're probably missing something. :)
I'm going to update the FAQ answer too.
brian d foy <firstname.lastname@example.org>
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
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:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- 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
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||