RE: Writing to file

From: Rob Hanson (rhanson_at_aptegrity.com)
Date: 02/01/04 

To: 'Support' <support@emlgroup.co.nz>, beginners@perl.org
Date: Sun, 1 Feb 2004 15:24:25 -0500

> but I can not retrieve the data into $newline with join. Is this bit wrong

Yes, it is a little off.

> $member_array[$count]

This *isn't* an array, it is an *array reference*

> [@edit_array]

Same with this.

Join takes a list of scalars, not a list of references. So you need to
dereference them. I think this is what you are after.

join("\:",@{$member_array[$count]});

Rob

-----Original Message-----
From: Support [mailto:support@emlgroup.co.nz]
Sent: Sunday, February 01, 2004 2:31 PM
To: beginners@perl.org
Subject: Writing to file

Hi all
I have a little bit of code you may be able to help with. I load a file into
an array with

foreach $lines(@database_array) {
                @edit_array = split(/\:/,$lines);
                push(@member_array,[@edit_array]);
                $x++;
                }   #loop

and then play around with the array a bit, then I would like to load it back
into the file with

while($count<$x){       
$newline = join("\:",$member_array[$count],[@edit_array]);
chomp($newline);
print DAT "$newline\n";
$count++;
}

but I can not retrieve the data into $newline with join. Is this bit wrong

$member_array[$count],[@edit_array])

or am I missing the point completely or is there another way of doing it.
I am currently loading direct from the file working on that line and them
loading back to file, but I can only change one line at a time. Doing it
with as above I can alter the entire array and then load back to file.
Any help is appreciated and please excuse if I'm in the wrong forum.
Cheers
Colin
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