APM: some simple questions

[Mike Stok]

On Tue, 27 Jan 2004, Wayne Walker wrote:

> On Tue, Jan 27, 2004 at 12:10:43PM -0600, Goldilox wrote:
> > is it better form to do this:
> > 
> > while($exlen > 0){$indent=$indent."  ";$exlen=$exlen-1;}
> > 
> > or this
> > 
> > while($exlen){$indent=$indent."  ";$exlen=$exlen-1;}
> > 
> > (or is the second one even going to work?)
> 
> Both should work (didn't test it, nor did I test this...)
> This should also work
> 
> $indent .= ("  " x $exlen);
> 
> see "perldoc perlop"  search for " x "  minus the quotes

Hmmm, if $exlen happens to start out with a value < 0 then the second 
while loop may take a while to complete.  Wayne's solution is safer (and 
you could even say something like this

  use constant INDENT_SPACES => 2;		# &nbsp; per space

  $indent .= '&nbsp;' x (INDENT_SPACES * $exlen);
 
if the mood took you...)

Mike

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