Add utils, tests, and month view

[lackey] / src / util.h

diff --git a/src/util.h b/src/util.h
new file mode 100644 (file)
index 0000000..57e7afc
--- /dev/null
+++ b/src/util.h
@@ -0,0 +1,44 @@
+/* Types */
+typedef int year_t;
+typedef int day_t;
+
+typedef enum {
+       JAN =  0,
+       FEB =  1,
+       MAR =  2,
+       APR =  3,
+       MAY =  4,
+       JUN =  5,
+       JUL =  6,
+       AUG =  7,
+       SEP =  8,
+       OCT =  9,
+       NOV = 10,
+       DEC = 11,
+} month_t;
+
+typedef enum {
+       SUN = 0,
+       MON = 1,
+       TUE = 2,
+       WED = 3,
+       THU = 4,
+       FRI = 5,
+       SAT = 6,
+} wday_t;
+
+/* Time functions */
+int days_in_year(year_t year);
+int days_in_month(year_t year, month_t month);
+int weeks_in_month(year_t year, month_t month);
+wday_t start_of_month(year_t year, month_t month);
+
+/* String functions */
+const char *month_to_str(month_t month);
+const char *month_to_string(month_t month);
+const char *day_to_st(wday_t day);
+const char *day_to_str(wday_t day);
+const char *day_to_string(wday_t day);
+
+/* Tests */
+void test_time(void);