1 files changed, 80 insertions, 0 deletions
diff --git a/Time/DateStrings.cpp b/Time/DateStrings.cpp
new file mode 100644
index 0000000..7610c8f
--- /dev/null
+++ b/Time/DateStrings.cpp
@@ -0,0 +1,80 @@
+/* DateStrings.cpp
+ * Definitions for date strings for use with the Time library
+ *
+ * No memory is consumed in the sketch if your code does not call any of the string methods
+ * You can change the text of the strings, make sure the short strings are each exactly 3 characters 
+ * the long strings can be any length up to the constant dt_MAX_STRING_LEN defined in Time.h
+ * 
+ */
+ 
+#include <avr/pgmspace.h> 
+#include "Time.h"
+ 
+// the short strings for each day or month must be exactly dt_SHORT_STR_LEN
+#define dt_SHORT_STR_LEN  3 // the length of short strings
+
+static char buffer[dt_MAX_STRING_LEN+1];  // must be big enough for longest string and the terminating null
+
+char monthStr1[] PROGMEM = "January";
+char monthStr2[] PROGMEM = "February";
+char monthStr3[] PROGMEM = "March";
+char monthStr4[] PROGMEM = "April";
+char monthStr5[] PROGMEM = "May";
+char monthStr6[] PROGMEM = "June";
+char monthStr7[] PROGMEM = "July";
+char monthStr8[] PROGMEM = "August";
+char monthStr9[] PROGMEM = "September";
+char monthStr10[] PROGMEM = "October";
+char monthStr11[] PROGMEM = "November";
+char monthStr12[] PROGMEM = "December";
+
+PGM_P monthNames_P[] PROGMEM = 
+{
+    "",monthStr1,monthStr2,monthStr3,monthStr4,monthStr5,monthStr6,
+	monthStr7,monthStr8,monthStr9,monthStr10,monthStr11,monthStr12
+};
+
+char monthShortNames_P[] PROGMEM = "ErrJanFebMarAprMayJunJulAugSepOctNovDec";
+
+char dayStr0[] PROGMEM = "Err";
+char dayStr1[] PROGMEM = "Sunday";
+char dayStr2[] PROGMEM = "Monday";
+char dayStr3[] PROGMEM = "Tuesday";
+char dayStr4[] PROGMEM = "Wednesday";
+char dayStr5[] PROGMEM = "Thursday";
+char dayStr6[] PROGMEM = "Friday";
+char dayStr7[] PROGMEM = "Saturday";
+
+PGM_P dayNames_P[] PROGMEM = { dayStr0,dayStr1,dayStr2,dayStr3,dayStr4,dayStr5,dayStr6,dayStr7};
+char dayShortNames_P[] PROGMEM = "ErrSunMonTueWedThrFriSat";
+
+/* functions to return date strings */
+
+char* monthStr(uint8_t month)
+{
+    strcpy_P(buffer, (PGM_P)pgm_read_word(&(monthNames_P[month])));
+	return buffer;
+}
+
+char* monthShortStr(uint8_t month)
+{
+   for (int i=0; i < dt_SHORT_STR_LEN; i++)      
+      buffer[i] = pgm_read_byte(&(monthShortNames_P[i+ (month*dt_SHORT_STR_LEN)]));  
+   buffer[dt_SHORT_STR_LEN] = 0;
+   return buffer;
+}
+
+char* dayStr(uint8_t day) 
+{
+   strcpy_P(buffer, (PGM_P)pgm_read_word(&(dayNames_P[day])));
+   return buffer;
+}
+
+char* dayShortStr(uint8_t day) 
+{
+   uint8_t index = day*dt_SHORT_STR_LEN;
+   for (int i=0; i < dt_SHORT_STR_LEN; i++)      
+      buffer[i] = pgm_read_byte(&(dayShortNames_P[index + i]));  
+   buffer[dt_SHORT_STR_LEN] = 0; 
+   return buffer;
+}