Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

Re^3: Perl oddities

by Anonymous Monk
on Mar 02, 2005 at 13:47 UTC ( #435824=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Perl oddities
in thread Perl oddities

That doesn't work:

#!/usr/bin/perl use strict; use warnings; $_ = "this that some other foo bar baz"; if (/(this)\s*(that)\s*(some)\s*(other)\s*(foo)\s*(bar)\s*(baz)/) { my ($this, $that, $some, $other, $foo, $bar, $baz) = ($1 .. $+); print "$this, $that, $some, $other, $foo, $bar, $baz\n"; } __END__ Use of uninitialized value in concatenation (.) or string at Use of uninitialized value in concatenation (.) or string at Use of uninitialized value in concatenation (.) or string at Use of uninitialized value in concatenation (.) or string at Use of uninitialized value in concatenation (.) or string at Use of uninitialized value in concatenation (.) or string at Use of uninitialized value in concatenation (.) or string at , , , , , ,
What does work is:
#!/usr/bin/perl use strict; use warnings; $_ = "this that some other foo bar baz"; if (/(this)\s*(that)\s*(some)\s*(other)\s*(foo)\s*(bar)\s*(baz)/) { my ($this, $that, $some, $other, $foo, $bar, $baz) = map {;no strict 'refs'; $$_} 1 .. $#-; print "$this, $that, $some, $other, $foo, $bar, $baz\n"; } __END__ this, that, some, other, foo, bar, baz
A trick I've been using for quite a long time. ($#+ instead of $#- works as well).


Comment on Re^3: Perl oddities
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://435824]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others cooling their heels in the Monastery: (13)
As of 2015-07-08 08:41 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 (98 votes), past polls