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ttical-tsv-ics - ics2txt - convert icalendar .ics file to plain text HTML git clone git://bitreich.org/ics2txt git://hg6vgqziawt5s4dj.onion/ics2txt DIR Log DIR Files DIR Refs DIR Tags DIR README --- ttical-tsv-ics (1697B) --- 1 #!/usr/bin/awk -f 2 3 function isleap(year) 4 { 5 return (year % 4 == 0) && (year % 100 != 0) || (year % 400 == 0) 6 } 7 8 function mdays(mon, year) 9 { 10 return (mon == 2) ? (28 + isleap(year)) : (30 + (mon + (mon > 7)) % 2) 11 } 12 13 # Split the time in seconds since epoch into a table, with fields 14 # named as with gmtime(3): tm["year"], tm["mon"], tm["mday"], 15 # tm["hour"], tm["min"], tm["sec"] 16 function gmtime(sec, tm, 17 s) 18 { 19 tm["year"] = 1970 20 while (sec >= (s = 86400 * (365 + isleap(tm["year"])))) { 21 tm["year"]++ 22 sec -= s 23 } 24 25 tm["mon"] = 1 26 while (sec >= (s = 86400 * mdays(tm["mon"], tm["year"]))) { 27 tm["mon"]++ 28 sec -= s 29 } 30 31 tm["mday"] = 1 32 while (sec >= (s = 86400)) { 33 tm["mday"]++ 34 sec -= s 35 } 36 37 tm["hour"] = 0 38 while (sec >= 3600) { 39 tm["hour"]++ 40 sec -= 3600 41 } 42 43 tm["min"] = 0 44 while (sec >= 60) { 45 tm["min"]++ 46 sec -= 60 47 } 48 49 tm["sec"] = sec 50 } 51 52 function print_fold(prefix, s, n) 53 { 54 while (s != "") { 55 line = substr(s, 1, n) 56 if (length(s) > n) sub(" +[^ \t\r\n]*$", "", line) 57 print prefix line 58 s = substr(s, length(line) + 2) 59 } 60 } 61 62 BEGIN { 63 print "BEGIN:VCALENDAR" 64 print "VERSION:2.0" 65 print "CALSCALE:GREGORIAN" 66 print "METHOD:PUBLISH" 67 } 68 69 { 70 split($0, a, "\t") 71 gmtime(a[1] + offset, beg) 72 gmtime(a[2] + offset, end) 73 cat = a[3]; loc = a[4]; sum = a[5]; des = a[6] 74 75 print "" 76 print "BEGIN:VEVENT" 77 printf "DTSTART:%04d%02d%02dT%02d%02d00Z\n", 78 beg["year"], beg["mon"], beg["mday"], beg["hour"], beg["min"] 79 printf "DTEND:%04d%02d%02dT%02d%02d00Z\n", 80 end["year"], end["mon"], end["mday"], end["hour"], end["min"] 81 print "SUMMARY:" sum 82 print "DESCRIPTION:" des 83 print "CATEGORIES:" cat 84 print "LOCATION:" loc 85 print "END:VEVENT" 86 } 87 88 END { 89 print "" 90 print "END:VCALENDAR" 91 }