first internationalisation for German and Dutch

src/ezTime.cpp

@@ -151,6 +151,69 @@ namespace ezt {
 
 	////////////////////////
 
+	#ifdef EZTIME_LANG_DE
+		String monthStr(const uint8_t month) {
+			switch(month) {
+				case 1: return  F("Januar");
+				case 2: return  F("Februar");		
+				case 3: return  F("März");
+				case 4: return  F("April");
+				case 5: return  F("Mai");
+				case 6: return  F("Juni");
+				case 7: return  F("Juli");
+				case 8: return  F("August");
+				case 9: return  F("September");
+				case 10: return F("Oktober");
+				case 11: return F("November");
+				case 12: return F("Dezember");
+			}
+			return "";
+		}
+
+		String dayStr(const uint8_t day) {
+			switch(day) {
+				case 1: return F("Sonntag");
+				case 2: return F("Montag");
+				case 3: return F("Dienstag");		
+				case 4: return F("Mittwoch");
+				case 5: return F("Donnerstag");
+				case 6: return F("Freitag");
+				case 7: return F("Samstag");
+			}
+			return "";
+		}
+	#elif EZTIME_LANG_NL
+		String monthStr(const uint8_t month) {
+			switch(month) {
+				case 1: return  F("Januari");
+				case 2: return  F("Februari");		
+				case 3: return  F("Maart");
+				case 4: return  F("April");
+				case 5: return  F("Mei");
+				case 6: return  F("Juni");
+				case 7: return  F("Juli");
+				case 8: return  F("Augustus");
+				case 9: return  F("September");
+				case 10: return F("October");
+				case 11: return F("November");
+				case 12: return F("December");
+			}
+			return "";
+		}
+
+		String dayStr(const uint8_t day) {
+			switch(day) {
+				case 1: return F("Zondag");
+				case 2: return F("Maandag");
+				case 3: return F("Dinsdag");		
+				case 4: return F("Woensdag");
+				case 5: return F("Donderdag");
+				case 6: return F("Vrijdag");
+				case 7: return F("Zaterdag");
+			}
+			return "";
+		}
+	#else
 		String monthStr(const uint8_t month) {
 			switch(month) {
 				case 1: return  F("January");
@@ -181,6 +244,8 @@ namespace ezt {
 			}
 			return "";
 		}
+	#endif
+
 
 	// Original time lib compatibility
 	String dayShortStr(const uint8_t day) { return dayStr(day).substring(0,3); }
@@ -1241,9 +1306,15 @@ String Timezone::dateTime(time_t t, const ezLocalOrUTC_t local_or_utc, const Str
 				case 'd':	// Day of the month, 2 digits with leading zeros
 					out += ezt::zeropad(tm.Day, 2);
 					break;
+				#ifdef EZTIME_TWO_LETTER_DAY
+					case 'D':	// A textual representation of a day, two letters
+						out += ezt::dayStr(tm.Wday).substring(0,2);
+						break;
+				#else
 					case 'D':	// A textual representation of a day, three letters
 						out += ezt::dayStr(tm.Wday).substring(0,3);
 						break;
+				#endif
 				case 'j':	// Day of the month without leading zeros
 					out += String(tm.Day);
 					break;