de facto keywords

[Robert Fraser]

Paul D. Anderson wrote:
>> The _real_ de facto keyword is the word "length" since when it's used 
>> inside an array index it shadows any variable called "length" outside.
> 
> I agree, but I can hear the screams from the populace who have used "length" all over their code. All the more reason, IMO, to make the change now.
> 
> Paul

The idea I saw before was to remove "length" as a specifier within array 
  indexes, and just use "$".