CLDR Support
The following are features based on CLDR 1.8 that were only partially completed in ICU 4.4, and need to be completed in the near future.
Index Characters
For letter indexes, such as used in a phone.
Done so far
The data was converted, and is present in the locales. Example:
ExemplarCharactersIndex{"[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]"}
There is already API in com.ibm.icu.text.IndexCharacters, which synthesizes the list of index characters.
TODO
ICU4J: wire up the code so that it gets the data from resources, and only synthesizes if there is no data available. Add tests.
ICU4C: Propose parallel API, port from ICU4J.
List patterns
For composing a list such as "A, B et C".
Done so far
The data was converted, and is present in the locales. Example:
listPattern{
standard{
2{"{0} en {1}"}
end{"{0} en {1}"}
}
}
The code is pretty simple; see UTS #35 for how it is to work.
TODO
ICU4J: Propose API, code, tests.
ICU4C: Propose API, code, tests.
Language Matching Data
For matching requested locales against supported locales.
Done so far
The data was converted, and is present in supplementalData.txt. Example:
languageMatching{
written{
{
"no",
"nb",
"100",
}
There is code in ICU4J (com.ibm.icu.util.LocaleMatcher). It needs to be updated to use the CLDR data, with additional tests.
TODO
ICU4J: Update code, add tests.
ICU4C: Propose API, code, tests.
Day Periods
For use with calendars that don't use periods of 12 hours with 12 hour clocks. This one is a bit trickier; we ran into some issues when we started supporting, and since the data was gathered through the Easy Steps, the translators didn't have examples in front of them. So we don't have the same level of confidence in the data, and we'd need to review it.
Done so far
There is code to convert the data in LDML2ICUConverter, but it was suppressed late in the cycle. The data is in two parts: the rules for the locales (in supplemental), and the translations in in the locales (in main).
TODO
This needs to be a longer-term goal, because there is more work to be done.
Design: consider having additional pattern letter to choose between am/pm style, and other day periods.
Data: review and vet; modify LDML2ICUConverter to convert.
ICU4J: Propose API, code.
ICU4C: Propose API, code.