nyctergatis.com Contact Projects Sysquake Remote Live NME PDF Hike Sudoku GifBuilder jpeglib for Palm OS MySQL Client Cross-GCC for Mac OS

NMEPluginCalendar.c Go to the documentation of this file. /* License: new BSD license (see header file) */ #include "NMEPluginCalendar.h" #include <string.h> #include <stdio.h> NMEErr NMEPluginCalendar(NMEConstText name, NMEInt nameLen, NMEConstText data, NMEInt dataLen, NMEContext *context, void *userData) { char *endp; int year, month; int weekday; // weekday of first day of month (0=monday) int m1, y1; // temp. values used to compute weekday int d, dmax; char str[16]; static int const nd[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; (void)name; (void)nameLen; (void)userData; // read year and month in data year = strtol(data, &endp, 0); month = strtol(endp, NULL, 0); if (year < 0) year = 0; if (month < 1 || month > 12) month = 1; // find week day of 1st day of month m1 = (month - 14) / 12; y1 = year + 4800; weekday = (1461 * (y1 + m1) / 4 + 367 * (month - 2 - 12 * m1) / 12 - 3 * ((y1 + m1 + 100) / 100) / 4 - 32074) % 7; // write calendar to dest: "\n|=Mon|=Tue...\n|||1|2|..." if (!NMEAddString("\n|=Mon|=Tue|=Wed|=Thu|=Fri|=Sat|=Sun\n", -1, '\0', context)) return kNMEErrNotEnoughMemory; dmax = nd[month - 1]; if (month == 2 && (year % 4 == 0 && year % 100 != 0 || year % 400 == 0)) dmax = 29; for (d = 0; d < weekday; d++) if (!NMEAddString("|", 1, '\0', context)) return kNMEErrNotEnoughMemory; for (d = 1; d <= dmax; d++) { sprintf(str, "|%d", d); if (!NMEAddString(str, -1, '\0', context)) return kNMEErrNotEnoughMemory; if ((d + weekday) % 7 == 0) if (!NMEAddString("\n", 1, '\0', context)) return kNMEErrNotEnoughMemory; } if (!NMEAddString("\n\n", 2, '\0', context)) return kNMEErrNotEnoughMemory; return kNMEErrOk; }