LikelySubtags and Default Content

  1. First make sure that you do Update Language/Script/Region Subtags first
  2. Run GenerateMaximalLocales with VM argument -DCLDR_DIR set to your cldr directory to generate the likely subtag data AND the default content locales.
    1. If you are trying to debug, add the VM argument -DGenerateMaximalLocalesDebug
  3. Input data:
    1. Data comes from territory/language information in supplemental data.
    2. However, it is supplemented by LANGUAGE_OVERRIDES in
      1. If there is no territory/language information in supplemental data for a language, add it to LANGUAGE_OVERRIDES.
      2. If the mapping changes when it shouldn't (there are some special cases), add to LANGUAGE_OVERRIDES.
  4. Output:
    1. Creates {CLDR_DIR}/../Generated/cldr/supplemental/likelySubtags.xml and {CLDR_DIR}/../Generated/cldr/supplemental/supplementalMetadata.xml
    2. Diff with {CLDR_DIR}/common/supplemental/likelySubtags.xml and {CLDR_DIR}/common/supplemental/supplementalMetadata.xml
    3. Be very careful to diff everything and check for errors.
      1. Watch especially for backwards incompatible changes; that is, changes rather than just additions.
      2. Look at the above to handle that with LANGUAGE_OVERRIDES.
    4. Run tests, fix input data, and iterate as necessary.
    5. Copy into the svn workspace and commit.