70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
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#include <stdint.h>
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#include <stddef.h> // NULL
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#include <string.h> // memcmp
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#include <strings.h>
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#include "epoch.h"
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uint8_t monthGetDays(Month month, Year *year) {
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switch (month) {
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case January:
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case March:
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case May:
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case July:
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case August:
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case October:
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case December:
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return 31;
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case February:
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switch (year->tag) {
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case leapYear:
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return 28;
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default:
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return 29;
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}
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default:
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return 30;
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}
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}
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uint32_t monthGetSeconds(Month month, Year *year) {
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return (int64_t)monthGetDays(month, year) * SECONDS_PER_DAY;
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}
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int monthIncrement(Month *month) {
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if (*month == December)
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return 1;
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else
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*month += 1;
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return 0;
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}
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int monthDecrement(Month *month) {
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if (*month == January)
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return 1;
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else
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*month -= 1;
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return 0;
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}
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const char *MonthNames[] = { "January", "February", "March", "April", "May", "June",
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"July", "August", "September", "October", "November", "December" };
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const char *MonthAbbrs[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
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"Aug", "Sep", "Oct", "Nov", "Dec" };
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const char* monthName(Month month) {
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return MonthNames[month - 1];
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}
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const char* monthAbbr(Month month) {
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return MonthAbbrs[month - 1];
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}
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int parseMonth(const char *s) {
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int i;
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for (i = 0; i < 12; i++) {
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if (strncasecmp(s, MonthAbbrs[i], 4) == 0 || strncasecmp(s, MonthNames[i], 10) == 0)
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return i + 1;
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}
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return -1;
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}
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