Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
PerlMonks  

Re: split and assign to arrayref in one go?

by radiantmatrix (Parson)
on Jun 16, 2008 at 15:58 UTC ( #692293=note: print w/ replies, xml ) Need Help??


in reply to split and assign to arrayref in one go?

An alternative to moritz's solution, you could do this:

@{ $aref } = split(/\D+/,"1,2xxx4:17");

It says "store the result of the split into the array referenced by $aref". If $aref is undefined or an ArrayRef already, this works, even with strict and warnings.

$ perl -w -Mstrict -MData::Dumper -e 'my $x; @{$x} = split /\s/, "the +one true"; print Dumper($x)' $VAR1 = [ 'the', 'one', 'true' ];

If $aref is a different kind of reference, then you will get a fatal "Not an ARRAY reference".

$ perl -w -Mstrict -MData::Dumper -e 'my $x = {}; @{$x} = split /\s/, +"the one true"; print Dumper($x)' Not an ARRAY reference at -e line 1.
<radiant.matrix>
Ramblings and references
“A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort.” Herm Albright
I haven't found a problem yet that can't be solved by a well-placed trebuchet


Comment on Re: split and assign to arrayref in one go?
Select or Download Code
Re^2: split and assign to arrayref in one go?
by rovf (Priest) on Jun 16, 2008 at 16:13 UTC
    Autovivification if $aref hasn't been defined yet - this is also an elegant solution!!! I already went with moritz's idea, but will keep yours in mind for the next occasion.
    -- 
    Ronald Fischer <ynnor@mm.st>

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://692293]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others taking refuge in the Monastery: (6)
As of 2015-07-04 05:55 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 (57 votes), past polls