Andrei Alexandrescu:
A classic idiom for reading lines and keeping them is
f.byLine.map!(x => x.idup) to get strings instead of the buffer
etc.
This is essentially this issue, I will reopen it if you want:
https://d.puremagic.com/issues/show_bug.cgi?id=4474
The current behavior trips new users on occasion,
In D the default behaviors should be "not tripping". And the
optimized behavour should be on explicit request.
So I think byLine should dup on default, and it should not dup on
request. As I explained in Issue 4474.
Perhaps this breaking change (I asked in Issue 4474) in byLine
can't happen now.
and the idiom solving it is very frequent. So what the heck -
let's put that in a function, expose and document it nicely,
and call it a day.
A good name would help a lot. Let's paint that bikeshed!
A good function name for the copying version is:
"byDupLines"
An alternative solution is the opposite of that I was suggesting
in Issue 4474:
byLine => not dup
byLine!true => copies every line with dup
Bye,
bearophile.
