Perl Guru Forums: Perl Programming Help: Intermediate: accessing hash of arrays:

CGI/Perl Guide | Learning Center | Forums | Advertise | Login

Site Search: in


	MAIN INDEX	SEARCH POSTS	WHO'S ONLINE	LOG IN

Home: Perl Programming Help: Intermediate:
accessing hash of arrays:

liven
Novice

Mar 10, 2008, 1:47 PM

Post #1 of 3 (433 views)

accessing hash of arrays:	Can't Post

loading an array of hashes:

Code

sub read_bingo_data 
{ 
	open (excel_data, $descriptive_file) || die("Couldn't open bingo description file\n"); 
	@data_lines=<excel_data>; 
 
	foreach $record (@data_lines)  
	{ 
		@holder = split(/,/, $record); 
		$bingo_name = shift(@holder); 
   push@{$descriptive_hash->{'bingo'}{$bingo_name}},"@holder[1..4]"; 
	} 
 
 
	close(excel_data); 
}

But when I try to step back through the array It only shows up as one element.

I use this line:

Code

@holder = split(/,/, $record);

and I use this line:

Code

$bingo_name = shift(@holder);

to name the array in the hash. I need each array to be named the first (element[0]) of the array or line from the excel data...

to add the data from an excell sheet to an array. but I don't need the first element of the array so that is why I do this:

Code

push@{$descriptive_hash->{'bingo'}{$bingo_name}},"@holder[1..4]";

Everything works, except the line:

@{$descriptive_hash->{'bingo'}{$bingo_name}},"@holder[1..4]"

acts as if it is just one element not 4....

What did I do wrong? I want it to be 4 separate elements that I can iterate through.

KevinR
Veteran

Mar 10, 2008, 3:38 PM

Post #2 of 3 (432 views)

Re: [liven] accessing hash of arrays: [In reply to]	Can't Post

When you double-quote an array it becomes a scalar, so remove the double-quotes from around the array slice. The whole thing can be written like so:

Code

	foreach $record (@data_lines)   
	{  
		@holder = split(/,/, $record);  
push@{$descriptive_hash->{'bingo'}{$holder[0]}},@holder[1..4];  
	}

shifting the array and assigning the first element to a scalar are really unecessary if that is all you are doing with @holder.
-------------------------------------------------

liven
Novice

Mar 11, 2008, 4:28 AM

Post #3 of 3 (425 views)

Re: [liven] accessing hash of arrays: [In reply to]	Can't Post

Kevin...

Now look I am going to try to say this in as polite a way a possible.

Your one smart fella.

Thanks!

Search for (options)

Web Applications & Managed Hosting Powered by Gossamer Threads
Visit our Mailing List Archives