101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
/* _,.---._ .-._ .--.-. ,--.--------.
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* _,..---._ ,-.' , - `. /==/ \ .-._/==/ //==/, - , -\
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* /==/, - \ /==/_, , - \|==|, \/ /, |==\ -\\==\.-. - ,-./
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* |==| _ _\==| .=. |==|- \| | \==\- \`--`\==\- \
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* |==| .=. |==|_ : ;=: - |==| , | -| `--`-' \==\_ \
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* |==|,| | -|==| , '=' |==| - _ | |==|- |
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* |==| '=' /\==\ - ,_ /|==| /\ , | |==|, |
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* |==|-, _`/ '.='. - .' /==/, | |- | /==/ -/
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* `-.`.____.' `--`--'' `--`./ `--` `--`--`
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* _ __ ,---. .-._ .=-.-. _,.----.
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* .-`.' ,`..--.' \ /==/ \ .-._ /==/_ /.' .' - \
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* /==/, - \==\-/\ \ |==|, \/ /, /==|, |/==/ , ,-'
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* |==| _ .=. /==/-|_\ | |==|- \| ||==| ||==|- | .
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* |==| , '=',\==\, - \ |==| , | -||==|- ||==|_ `-' \
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* |==|- '..'/==/ - ,| |==| - _ ||==| ,||==| _ , |
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* |==|, | /==/- /\ - \|==| /\ , ||==|- |\==\. /
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* /==/ - | \==\ _.\=\.-'/==/, | |- |/==/. / `-.`.___.-'
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* `--`---' `--` `--`./ `--``--`-`
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*
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* @(#)Copyright (c) 2024, Nathan D. Fisher.
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*
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* This is free software. It comes with NO WARRANTY.
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* Permission to use, modify and distribute this source code
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* is granted subject to the following conditions.
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* 1/ that the above copyright notice and this notice
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* are preserved in all copies and that due credit be given
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* to the author.
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* 2/ that any changes to this code are clearly commented
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* as such so that the author does not get blamed for bugs
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* other than his own.
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*/
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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 self, Year *year) {
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switch (self) {
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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 self, Year *year) {
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return (int64_t)monthGetDays(self, year) * SECONDS_PER_DAY;
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}
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int monthIncrement(Month *self) {
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if (*self == December)
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return 1;
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else
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*self += 1;
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return 0;
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}
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int monthDecrement(Month *self) {
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if (*self == January)
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return 1;
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else
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*self -= 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 self) {
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return MonthNames[self - 1];
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}
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const char* monthAbbr(Month self) {
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return MonthAbbrs[self - 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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