Java implementation of Alpha-numeric comparator

[Naoto Sato]

j.t.Collator is basically for locale sensitive sorting, and I think this 
use case is locale independent. Aside from how significant to have it in 
the library, I am not sure j.t.Collator is the right place.

Naoto

On 12/16/14 11:04 AM, Xueming Shen wrote:
> On 12/16/2014 06:58 AM, roger riggs wrote:
>> Hi Ivan,
>>
>> In which package/class do you propose to add the API to get the
>> comparator?
>>
>> In java.time, comparators are returned from static methods in an
>> interface.
>> This allows lambda to be used for the implementation.
>> For example, ChronoZonedDateTime.timeLineOrder
>> <https://docs.oracle.com/javase/8/docs/api/java/time/chrono/ChronoZonedDateTime.html#timeLineOrder-->()[1]
>>
>>
>> For example a static method could be added to CharSequence:
>> public static int Comparator<CharSequence> alphaNumericComparator() ...
>>
>> In use it would be
>> CharSequence.alphaNumericComparator().compare("012", "234");
>>
>
> This is more like a special case of j.t.Collator. I'm not sure it's a
> good idea to put this "special"
> comparator into CharSequence, without careful planning. I will assume
> there are more useful
> utility comparators people would like to see here. To use the original
> example, while the
> it's good to have this comparator to compare "jdk 10" and "jdk9", how
> about "jdk-10" and
> "jdk 9"? Yes, it is more like a collator:-)
>
> -Sherman