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The attached patch adds a --interface/-i option to locale.exe that makes the --system/-s and --user/-u options print the respective default UI language instead of the default locale. * locale.cc: Add --interface option for printing Windows default UI languages. For background, here's what Windows' various default locales and languages do: - LOCALE_USER_DEFAULT: This reflects the setting on the Formats tab of the (Windows 7) Region&Language control panel, which affects the format of times, dates, numbers, and currency. - LOCALE_SYSTEM_DEFAULT: This reflects the "Language for non-Unicode programs" on the Adminstrative tab of Region&Language control panel, which also determines the ANSI and OEM codepages. - GetUserDefaultUILanguage(): This is the current user's Windows UI language, also called display language. On Windows installs with multiple UI languages, a setting for this appears on the "Keyboards and Languages" tab of the Region&Language control panel. - GetSystemDefaultUILanguage(): The is the system-wide UI language used for things that aren't user-specific, e.g. the login screen. As far as I know it's determined at Windows install time and can''t be changed. (The latter two APIs are available from Windows 2000 onwards.) Looking at those, and if we wanted to base the Cygwin locale settings on the Windows ones, I think LC_NUMERIC, LC_TIME, and LC_MONETARY should be determined by LOCALE_USER_DEFAULT, but LC_MESSAGES should be determined by GetUserDefaultUILanguage(). Not sure about LC_CTYPE and LC_COLLATE, but I suppose it would make sense for character classification and sorting to match the UI language. See also this blog post by MS's "Dr International" Michael Kaplan: http://blogs.msdn.com/b/michkap/archive/2006/05/13/596971.aspx Andy
Attachment:
ui_lang.patch
Description: Binary data
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