Add love.system.getPreferredLocales()

src/modules/system/System.h

@@ -114,6 +114,19 @@ public:
 	 **/
 	bool hasBackgroundMusic() const;
 
+	/**
+	 * Gets the list of locales in order of user preference.
+	 * 
+	 * The returned string from this function has format of
+	 * xx_YY where 'xx' is ISO-639 language code and 'YY' is
+	 * the ISO-3166 country code if available. If country
+	 * code is unavailable, then it simply returns the language.
+	 * 
+	 * @return List user preferred locales or empty if the current
+	 * platform does not support this function.
+	 */
+	virtual std::vector<std::string> getPreferredLocales() const = 0;
+
 	static bool getConstant(const char *in, PowerState &out);
 	static bool getConstant(PowerState in, const char *&out);