Good name for f.byLine.map!(x => x.idup)?

[monarch_dodra]

On Thursday, 20 March 2014 at 01:38:38 UTC, Andrei Alexandrescu 
wrote:
> On 3/19/14, 4:53 PM, Meta wrote:
>> On Wednesday, 19 March 2014 at 22:30:55 UTC, Peter Alexander 
>> wrote:
>>> On Sunday, 16 March 2014 at 16:58:36 UTC, Andrei Alexandrescu 
>>> wrote:
>>>> A classic idiom for reading lines and keeping them is 
>>>> f.byLine.map!(x
>>>> => x.idup) to get strings instead of the buffer etc.
>>>
>>> f.readLines
>>
>> What about a simpler f.iter() or f.lineIter()?
>
> Ideally it would be a variation of byLine. -- Andrei

What about simply templatizing (*) it?

byLine() => implicit char[]
byLine!string() => dupes

This has the double advantage that:
* Does not introduce a new symbol
* Can be customized for wchar/dchar

In particular, the wchar thing could be of interest to those that 
are reading a file they now is UTF16/UCS2.

(*) Technically, it's already a template, but the parameters are 
inferred. We could make it so that we can use explicitly defined 
parameters. In particular, so that the output type is specified 
before the terminator type. AFAIK, the transition can be made 
seemlessly with no breakage.