On Monday, 9 June 2014 at 11:16:18 UTC, monarch_dodra wrote:
On Monday, 9 June 2014 at 11:04:12 UTC, Chris wrote:
From the library reference:
assert(equal(splitter("hello world", ' '), [ "hello", "",
"world" ]));
and
"If a range with one separator is given, the result is a range
with two empty elements."
My problem was that if I have input like
auto word = "bla-";
it will return parts.data.length == 2, so I would have to
check parts.data[1] != "". This is too awkward. I just want
the parts of the word, i.e.
length == 2 // grab [0] grab [1]
length == 1 // grab [0] (no second part, as in "bla-")
length > 2 // do something else
You can just pipe in an extra "filter!(a=>!a.empty)", and it'll
do what you want:
put(parts, w.splitter('-').filter!(a=>!a.empty)());
The rational for this behavior, is that it preserves the "total
amount of information" from your input. EG:
assert(equal(myString.spliter(sep).join(sep), myString));
If the empty tokens were all stripped out, that wouldn't work,
you'd have lost information about how many separators there
actually were, and where they were.
I see, I've already popped in a filter. I only wonder how much of
a performance loss that is. Probably negligible.
