On 5/27/13 8:16 PM, bearophile wrote:
The "group" of Phobos is useful and it has purposes quite different from
the Perl6 "classify", both are needed.
I have also suggested "group" to act more like the Python
"itertools.grouby" and yield not just the (head,count) tuples, but
(head,lazy_range_of_the_equality_ class) that is quite useful, example:
from itertools import groupby
s = "abABACAaaaaBCAB"
[(h, list(g)) for h,g in groupby(s, key=str.isupper)]
[(False, ['a', 'b']), (True, ['A', 'B', 'A', 'C', 'A']), (False, ['a',
'a', 'a', 'a']), (True, ['B', 'C', 'A', 'B'])]
I think Andrei was looking at this change with interest. Changing Phobos
group() API now is maybe not easy to do, so maybe it's better to
introduce a differently named function for that, like one named
"groupAll" or something similar.
I wrote that a while ago. Someone please review and pull
https://github.com/D-Programming-Language/phobos/pull/1186 already!
Andrei
