Re: REF instead of HASH-ref

my %list = { 'lang' => 'de' };

You want:

my %list = ( 'lang' => 'de' );
my $listref = \%list;
[download]

(Note the parens).

Or you can do my $listref = { 'lang' => 'de' };(Note the curly braces).

Once you do that, print $listref->{'lang'} should print de, not any kind of stringified hash.

Check out perlref for more detail. Basically, the parenthese produce a list (which you can assign to a hash and then take a reference), and the curly braces produce an anonymous hash, whose reference you can store in a scalar.

Update
Added a little more detail....

Comment on Re: REF instead of HASH-ref Select or Download Code

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Re^2: REF instead of HASH-ref by zetetes (Pilgrim) on Sep 15, 2004 at 11:47 UTC
if i do `my %list = ( 'lang' => 'de' ); my $listref = \%list; print ref($listref);` [download] i get REF. if i do `my $listref = { 'lang' => 'de' }; print ref($listref);` [download] i get HASH. i use this with CGI. so i initialize the hash as follow: `use vars qw($query @parname %list $n ); $query = new CGI; @parname = $query->param; foreach $n (@parname) { $list{$n} = $query->param($n); }` [download] i then just pass \%list along to a function which takes the refenrence and uses the hash again. i used exactly this code (copy/paste) in another app, there it worked fine. the environment is the same, too. kind of puzzled. update: if i update the initialization to: `$query = new CGI; @parname = $query->param; foreach $n (@parname) { $hashref->{$n} = $query->param($n); }` [download] everything works fine. hm...	[reply] [d/l] [select]
Re^3: REF instead of HASH-ref by VSarkiss (Monsignor) on Sep 15, 2004 at 15:06 UTC
You're not keeping track of how deeply you're nesting your data structures. Rather than try to write a long explanation here, I'll suggest you read Tom Christiansen's Perl Data Structures Cookbook, also available in convenient perldoc form.	[reply]
Re^4: REF instead of HASH-ref by zetetes (Pilgrim) on Sep 15, 2004 at 19:54 UTC
thank you, VSarkiss for your patience and the hint. i'll have a look at the doc.	[reply]