Locale value syntax In general, a value for a locale category (the according environment variable) is constructed like this: "xy[_XY][.codeset][@modifier]" xy: language-abbreviation, ISO 639-1 (2 characters), [ISO 639-2 (3 characters) might be used for languages without a two letter code] XY: country/territory, ISO 3166 [3166-2 three letter codes might be possible] codeset: f.i. "iso88591", "ISO..