On Sun, Jan 4, 2009 at 22:36, Mr. Shawn H. Corey <shawnhco...@magma.ca> wrote:
snip
> my $Backup_Count = 0;
>
> sub back_and_print {
> my $text = shift @_; # no tabs, no newlines!
>
> print "\b" x $Backup_Count;
> print " " x $Backup_Count;
> print "\b" x $Backup_Count;
> $Backup_Count = length $text;
> print $text;
> }
snip
Since $Backup_Count is acting as a static variable (in the ANSI C
sense) for back_and_print it would be a good idea to limit the access
to it to subroutine:
{
my $Backup_Count = 0;
sub back_and_print {
my $text = shift @_; # no tabs, no newlines!
print "\b" x $Backup_Count,
" " x $Backup_Count,
"\b" x $Backup_Count,
$text;
$Backup_Count = length $text;
}
}
--
Chas. Owens
wonkden.net
The most important skill a programmer can have is the ability to read.
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