Re: Help: Process data
- From: Tim Greer <tim@xxxxxxxxxxxxx>
- Date: Sun, 30 Nov 2008 22:22:46 -0800
Amy Lee wrote:
I have a little problem, could you tell me why do you use such block?
my(undef, $this) = split;
The above will split (on whitespace, by default), with the $this
variable being assigned the value of 0 or 1 -- given your example (the
second field in the line, is either 1 or 0, and since the conditional
isn't checking or caring what the first field is, the first field is
just undefined and not assigned anything).
if ( $this == $value )
If the value of $this is equal to (==) $value (whatever $value you set
to), then it will...
{ push @buffer, $_ }
Push (add) $_ (the string value for that line) to the @buffer array.
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