+// TODO: This is copied in both winnmfmt.cpp and windtfmt.cpp, but really should
+// be factored out into a common helper for both.
+static UErrorCode GetEquivalentWindowsLocaleName(const Locale& locale, UnicodeString** buffer)
+{
+ UErrorCode status = U_ZERO_ERROR;
+ char asciiBCP47Tag[LOCALE_NAME_MAX_LENGTH] = {};
+
+ // Convert from names like "en_CA" and "de_DE@collation=phonebook" to "en-CA" and "de-DE-u-co-phonebk".
+ (void)uloc_toLanguageTag(locale.getName(), asciiBCP47Tag, UPRV_LENGTHOF(asciiBCP47Tag), FALSE, &status);
+
+ if (U_SUCCESS(status))
+ {
+ // Need it to be UTF-16, not 8-bit
+ // TODO: This seems like a good thing for a helper
+ wchar_t bcp47Tag[LOCALE_NAME_MAX_LENGTH] = {};
+ int32_t i;
+ for (i = 0; i < UPRV_LENGTHOF(bcp47Tag); i++)
+ {
+ if (asciiBCP47Tag[i] == '\0')
+ {
+ break;
+ }
+ else
+ {
+ // normally just copy the character
+ bcp47Tag[i] = static_cast<wchar_t>(asciiBCP47Tag[i]);
+ }
+ }
+
+ // Ensure it's null terminated
+ if (i < (UPRV_LENGTHOF(bcp47Tag) - 1))
+ {
+ bcp47Tag[i] = L'\0';
+ }
+ else
+ {
+ // Ran out of room.
+ bcp47Tag[UPRV_LENGTHOF(bcp47Tag) - 1] = L'\0';
+ }
+
+
+ wchar_t windowsLocaleName[LOCALE_NAME_MAX_LENGTH] = {};
+
+ // Note: On Windows versions below 10, there is no support for locale name aliases.
+ // This means that it will fail for locales where ICU has a completely different
+ // name (like ku vs ckb), and it will also not work for alternate sort locale
+ // names like "de-DE-u-co-phonebk".
+
+ // TODO: We could add some sort of exception table for cases like ku vs ckb.
+
+ int length = ResolveLocaleName(bcp47Tag, windowsLocaleName, UPRV_LENGTHOF(windowsLocaleName));
+
+ if (length > 0)
+ {
+ *buffer = new UnicodeString(windowsLocaleName);
+ }
+ else
+ {
+ status = U_UNSUPPORTED_ERROR;
+ }
+ }
+ return status;
+}
+
projects / apple / icu.git / blobdiff