Data for root for day periods in ICU data

[Mark Davis ☕️]

​No, because if there are no variable rules, there are no variable rules.

What the spec should say is:

If there are variable day periods specified by a set of
dayPeriodRules, that set needs to completely....


The AM/PM are fixed day periods, don't require rules, and always valid as a
fallback.​

Mark

On Wed, Dec 2, 2015 at 8:39 PM, kz <kazede at google.com> wrote:

> But root shouldn't be empty. TR35 says
>
> The set of dayPeriodRules need to completely cover the 24 hours in a day
>> (from 0:00 before 24:00), with no overlaps between any dayPeriodRules.
>
>
> Now root is allowed to have *no strings* for the variable day periods
> (making it fall back to am/pm -- btw I submitted a ticket for that
> clarification), but to conform to the spec, it still needs to state, even
> trivially, which day period each moment in time falls in. Or we need to
> change the spec to allow empty rule sets.
>
> What do you think?
>
>
> Thanks
> kz
>
> On Wed, Dec 2, 2015 at 11:26 AM, Mark Davis ☕️ <mark at macchiato.com> wrote:
>
>> Makes sense now. Root is empty, which is correct. Based on what you said,
>> I suspect that set1 is being suppressed because it is empty. Probably needs
>> a tweak to the LDML2ICU converter to have a special value for "no rules" to
>> show up in ICU. Mind filing a ticket for that?
>>
>> In the meantime—*as a workaround*—if there is no set1 in the ICU data
>> you can assume it is an empty rule set.
>>
>> Mark
>>
>> On Wed, Dec 2, 2015 at 7:44 PM, kz <kazede at google.com> wrote:
>>
>>> My mistake; I meant "variable day periods" when I said "day periods".
>>>
>>> The lack of localized strings is not the problem; what I'm having
>>> trouble with are the rules
>>> <http://unicode.org/repos/cldr/tags/latest/common/supplemental/dayPeriods.xml>
>>> for when to use what string. Root has a presence in that file but no rules
>>> are defined. In ICU data, this results in root pointing to "set1" but set1
>>> doesn't exist.
>>>
>>> Is this a mistake, or should I hard code in how to handle root?
>>>
>>>
>>> Thanks
>>> kz
>>>
>>> On Wed, Dec 2, 2015 at 2:55 AM, Mark Davis ☕️ <mark at macchiato.com>
>>> wrote:
>>>
>>>> There are day periods in CLDR for root; I see:
>>>>
>>>> <dayPeriods>
>>>> <dayPeriodContext type="format">
>>>> <dayPeriodWidth type="abbreviated">
>>>> <dayPeriod type="am">AM</dayPeriod>
>>>> <dayPeriod type="pm">PM</dayPeriod>
>>>> </dayPeriodWidth>
>>>> <dayPeriodWidth type="narrow">
>>>> <alias source="locale" path="../dayPeriodWidth[@type='abbreviated']"/>
>>>> </dayPeriodWidth>
>>>> <dayPeriodWidth type="wide">
>>>> <alias source="locale" path="../dayPeriodWidth[@type='abbreviated']"/>
>>>> </dayPeriodWidth>
>>>> </dayPeriodContext>
>>>> <dayPeriodContext type="stand-alone">
>>>> <dayPeriodWidth type="abbreviated">
>>>> <alias source="locale"
>>>> path="../../dayPeriodContext[@type='format']/dayPeriodWidth[@type='abbreviated']"/>
>>>> </dayPeriodWidth>
>>>> <dayPeriodWidth type="narrow">
>>>> <alias source="locale" path="../dayPeriodWidth[@type='abbreviated']"/>
>>>> </dayPeriodWidth>
>>>> <dayPeriodWidth type="wide">
>>>> <alias source="locale" path="../dayPeriodWidth[@type='abbreviated']"/>
>>>> </dayPeriodWidth>
>>>> </dayPeriodContext>
>>>> </dayPeriods>
>>>>
>>>> If a locale has no variable day periods, then AM/PM is the default. We
>>>> should make that clearer in the spec. Would you mind filing a ticket?
>>>>
>>>> For more info, see
>>>> http://unicode.org/reports/tr35/tr35-dates.html#Day_Period_Rules
>>>>
>>>> Mark
>>>>
>>>> On Wed, Dec 2, 2015 at 1:41 AM, kz <kazede at google.com> wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> In the CLDR data for day periods
>>>>> <http://unicode.org/repos/cldr/tags/latest/common/supplemental/dayPeriods.xml>,
>>>>> there's an entry for root but the content is commented out. This results in
>>>>> root having a presence but not given a rule set in ICU data for day
>>>>> periods
>>>>> <http://bugs.icu-project.org/trac/browser/icu/trunk/source/data/misc/dayPeriods.txt>
>>>>> .
>>>>>
>>>>> What should be the proper formatting behavior for the root locale for
>>>>> the day period character 'B'? Is an empty string acceptable?
>>>>>
>>>>>
>>>>> Thanks
>>>>> kz
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> CLDR-Users mailing list
>>>>> CLDR-Users at unicode.org
>>>>> http://unicode.org/mailman/listinfo/cldr-users
>>>>>
>>>>>
>>>>
>>>
>>
>
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