Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?
 
PerlMonks  

Re^2: bareword error

by hipowls (Curate)
on Mar 14, 2008 at 10:49 UTC ( #674176=note: print w/ replies, xml ) Need Help??


in reply to Re: bareword error
in thread bareword error

Good answer, one error though, m// is not an empty pattern, it is the last pattern to successfully match, split gets special dispensation so that split m//, $stuff does split on an empty pattern.

From the split reference:

As a special case for split, using the empty pattern // specifically matches only the null string, and is not be confused with the regular use of // to mean "the last successful pattern match". So, for split, the following:
print join(':', split(//, 'hi there'));
produces the output 'h:i: :t:h:e:r:e'.


Comment on Re^2: bareword error
Download Code
Replies are listed 'Best First'.
Re^3: bareword error
by johngg (Abbot) on Mar 14, 2008 at 11:16 UTC
    Cripes, I'd never realised that, thanks for pointing it out. I had to write a little piece of code to prove it to myself.

    $ perl -le ' > $s1 = q{catDOGfish}; > $s2 = q{xxYYYzz}; > print $1 if $s1 =~ m{([A-Z]+)}; > print $1 if $s1 =~ m{([0-9]+)}; > print $1 if $s2 =~ m{};' DOG YYY $

    Fancy not knowing that after all this time!

    Thanks again,

    JohnGG

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://674176]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others rifling through the Monastery: (15)
As of 2015-07-28 14:40 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (256 votes), past polls