Ranges of char and wchar

[Walter Bright via Digitalmars-d]

On 5/8/2014 4:24 PM, Nick Sabalausky wrote:
> On 5/8/2014 4:13 PM, Walter Bright wrote:
>> 8/2014 12:22 PM, Nick Sabalausky wrote:
>>> On 5/8/2014 2:46 PM, Walter Bright wrote:
>>>>
>>>> But to make a lazy version from an eager one means reimplementing it.
>>>>
>>>
>>> Or yield()-ing inside the eager one's sink.
>>
>> The data is still supplied to it.
>
> I think I've lost track of what you mean here. What data is still supplied to
> what, and what point does that illustrate?
>

When creating an engine vs calculating the result, the former does not require 
the actual data to be supplied.

regex is a classic example of that.