Delete iCal.c
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iCal.c
134
iCal.c
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const char *iCalHeader = "BEGIN:VCALENDAR\r\n"
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"VERSION:2.0\r\n"
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"PRODID:-//hacksw/handcal//NONSGML v1.0//EN\r\n";
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const char *iCalEvent = "BEGIN:VEVENT\r\n"
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"UID:%s%d\r\n"
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"DTSTAMP:%s\r\n"
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"DTSTART:%s\r\n"
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"DTEND:%s\r\n"
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"SUMMARY:%s\r\n"
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"END:VEVENT\r\n";
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const char *iCalFileExtension = "ics";
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/*
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* Wikipedia
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*
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*The body of the iCalendar object (the icalbody) contains single-line Calendar
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* Properties that apply to the entire calendar, as well as one or more blocks
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* of multiple lines that each define a Calendar Component such as an event,
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* journal entry, alarm, or one of several other types. Here is a simple example
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* of an iCalendar object with a single calendar containing a single Calendar
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* Component, a "Bastille Day Party" event starting at 5pm on July 14, 1997, and
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* ending at 4am the following morning:[10]
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BEGIN:VCALENDAR
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VERSION:2.0
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PRODID:-//hacksw/handcal//NONSGML v1.0//EN
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BEGIN:VEVENT
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UID:uid1@example.com
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ORGANIZER;CN=John Doe:MAILTO:john.doe@example.com
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DTSTART:19970714T170000Z
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DTEND:19970715T040000Z
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SUMMARY:Bastille Day Party
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GEO:48.85299;2.36885
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END:VEVENT
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END:VCALENDAR
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The UID field distributes updates when a scheduled event changes. When the event
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is first generated a globally unique identifier is created. If a later event is
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distributed with the same UID, it replaces the original one. An example UID
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might be Y2007S2C131M5@example.edu, for the 5th meeting of class 131 in semester
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2 at a hypothetical college. Email-style UIDs are now considered bad practice,
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with a UUID recommended instead.[11]
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The most common representation of date and time is a tz timestamp such as
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20010911T124640Z with the format <year (4 digits)><month (2)><day (2)>T<hour
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(2)><minute (2)><second (2)>Z for a total fixed length of 16 characters. Z
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indicates the use of UTC (referring to its Zulu time zone).[12] When used in
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DTSTART and DTEND properties, start times are inclusive while end times are not.
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This allows an event's end time to be the same as a consecutive event's start
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without those events overlapping and potentially creating (false) scheduling
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conflicts.[13]
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*/
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int exportiCal(llist *events_ll) {
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llist *ev_ll = events_ll;
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llistPrintE(ev_ll);
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printf("%s", iCalHeader);
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time_t now = time(NULL);
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struct tm lc;
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localtime_r(&now, &lc);
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// gen filename & open for write
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char nameBuf[32];
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strftime(nameBuf, 32 - 12, "%F", &lc);
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strcat(nameBuf, "dayplan.ics");
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FILE *fp = fopen(nameBuf, "w");
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if (fp == NULL) {
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planLog("fopen failed!!", 1);
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return 1;
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}
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// write iCal header to file
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fprintf(fp, "%s", iCalHeader);
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// for every event in events_ll create VEVENT str and write to fp
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int count = 0;
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while (ev_ll != NULL) {
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// gen iCal compatible time str
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Event *current = ev_ll->data;
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struct tm startlc;
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struct tm endlc;
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localtime_r(¤t->plannedStartTime, &startlc);
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localtime_r(¤t->plannedEndTime, &endlc);
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char timeStartBuf[17];
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char timeEndBuf[17];
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char timeStamp[17];
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strftime(timeStamp, 17, "%Y%m%dT%k%M%SZ", &lc);
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printf("%s\n", timeStamp);
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strftime(timeStartBuf, 17, "%Y%m%dT%k%M%SZ", &startlc);
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printf("%s\n", timeStartBuf);
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strftime(timeEndBuf, 17, "%Y%m%dT%k%M%SZ", &endlc);
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printf("%s\n", timeEndBuf);
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fprintf(fp, iCalEvent, current->task->name, count, timeStamp, timeStartBuf,
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timeEndBuf, current->task->name);
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ev_ll = ev_ll->next;
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count += 1;
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}
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// after all events are written end cal with
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// END:VCALENDAR
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fprintf(fp, "END:VCALENDAR\r\n");
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fclose(fp);
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return 0;
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}
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const char *taskFileFormat = "%s,%lu,%lu,%d,%lu\n";
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int taskLlToFile(llist *tll) {
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// open file
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FILE *fp = fopen("db.csv", "w");
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if (fp == NULL)
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return -1;
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llist *c = tll;
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while (c != NULL) {
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Task *ct = (Task *)c->data;
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fprintf(fp, taskFileFormat, ct->name, ct->created, ct->deadline,
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ct->priority, ct->spare);
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c = c->next;
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}
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fclose(fp);
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return 0;
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}
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