+
+ /*
+ * NOTE:
+ * PHP is written by C and utilize C library, whose APIs are defined in POSIX.
+ *
+ * setlocale() is one of APIs of C library.
+ * but the argument value for setlocale() depends on each implements
+ *
+ * The latest POSIX standard:
+ * The Open Group Base Specifications Issue 7
+ * IEEE Std 1003.1™-2008
+ * http://pubs.opengroup.org/onlinepubs/9699919799/mindex.html
+ *
+ * Microsoft's operating system uses their own implementation
+ * Language Strings
+ * http://msdn.microsoft.com/en-us/library/39cwe7zf%28v=vs.110%29.aspx
+ * Country/Region Strings
+ * http://msdn.microsoft.com/en-us/library/cdax410z%28v=vs.110%29.aspx
+ *
+ * Linux and Unix (in this meaning, Apple's OS X derives from UNIX) uses ISO standard.
+ * two characters language tag (ISO 639-1)
+ * two characters region and country lag (ISO 3166-1 alpha-1)
+ *
+ */
+ if ( PHP_OS == "WIN32" || PHP_OS == "WINNT" )
+ {
+ /* LOCALE_IN_WINDOWS is defined in each translation files */
+ setlocale(LC_ALL, _LOCALE_IN_WINDOWS);
+ }
+ else
+ {
+ setlocale(LC_ALL, preg_replace('#(.+)_(.+)_(.+)#', '$1-$3', $locale));
+ }
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