Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number
 
PerlMonks  

Re: trim leading & trailing whitespace

by brian_d_foy (Abbot)
on Mar 31, 2005 at 19:37 UTC ( #443942=note: print w/ replies, xml ) Need Help??


in reply to trim leading & trailing whitespace

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 <brian@stonehenge.com>


Comment on Re: trim leading & trailing whitespace
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://443942]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others romping around the Monastery: (4)
As of 2014-07-26 12:24 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    My favorite superfluous repetitious redundant duplicative phrase is:









    Results (176 votes), past polls