shuffle split

Win has asked for the wisdom of the Perl Monks concerning the following question:

Dear Monks,

I’m seeking guidance. I am having problems with the following bit of code:


my $random_string = join '', shuffle split //, "stringtorandomise36let
+terslong123456";
[download]

It gives me the following error message:


syntax error at Test_flat_file_write_over.pl line 137, near "shuffle s
+plit"
Execution of Test_flat_file_write_over.pl aborted due to compilation e
+rrors.
[download]

I'm possibly missing a module reference.

Comment on shuffle split Select or Download Code

Replies are listed 'Best First'.
Re: shuffle split by prasadbabu (Prior) on Jan 31, 2006 at 12:15 UTC
Win, there is no 'shuffle' function in core perl, you can make use of List::Util to accomplish your job. `use List::Util shuffle; my $random_string = join '', shuffle split //, "stringtorandomise36let +terslong123456"; print "$random_string"; output: le663snetnlrodt1mer23trsogiions4atg5` [download] Prasad	[reply] [d/l]
Re: shuffle split by blazar (Canon) on Jan 31, 2006 at 12:11 UTC
$ perldoc -f shuffle No documentation for perl function `shuffle' found [download] You either have to roll your own `shuffle()` sub or use one from a suitable module. Please be sure to check the faq since as you can imagine the question comes out quite often. In case of doubt try perldoc -q shuffle.	[reply] [d/l] [select]
Re: shuffle split by szbalint (Friar) on Jan 31, 2006 at 12:17 UTC
From `perldoc -q shuffle`: How do I shuffle an array randomly? If you either have Perl 5.8.0 or later installed, or if you have Scalar-List-Utils 1.03 or later installed, you can say: `use List::Util 'shuffle'; @shuffled = shuffle(@list);` [download]	[reply] [d/l] [select]
Re: shuffle split by marto (Cardinal) on Jan 31, 2006 at 12:17 UTC
Win, I suspect you want to use List::Util by adding `use List::Util qw(shuffle);` to the top of your code. However, as I have pointed out to you in previous nodes, you would have found the answer yourself had you used Super Search prior to posting. Martin	[reply] [d/l]
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