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ttical-ics-tsv - ics2txt - convert icalendar .ics file to plain text |
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git clone git://bitreich.org/ics2txt git://hg6vgqziawt5s4dj.onion/ics2txt (git://bitreich.org) |
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README |
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--- |
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ttical-ics-tsv (1410B) |
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--- |
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1 #!/usr/bin/awk -f |
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2 |
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3 function isleap(year) |
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4 { |
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5 return (year % 4 == 0) && (year % 100 != 0) || (year % 400 == 0) |
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6 } |
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7 |
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8 function mdays(mon, year) |
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9 { |
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10 return (mon == 2) ? (28 + isleap(year)) : (30 + (mon + (mon > 7)) % 2) |
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11 } |
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12 |
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13 function timegm(year, mon, mday, hour, min, sec) |
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14 { |
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15 while (--mon >= 1) |
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16 mday += mdays(mon, year) |
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17 while (--year >= 1970) |
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18 mday += 365 + isleap(year) |
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19 return (((((mday - 1) * 24) + hour) * 60) + min) * 60 + sec |
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20 } |
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21 |
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22 function date_ical(str, offset, |
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23 year, mon, mday, hour, min) |
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24 { |
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25 year = substr(str, 1, 4) |
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26 mon = substr(str, 5, 2) |
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27 mday = substr(str, 7, 2) |
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28 hour = substr(str, 10, 2) |
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29 min = substr(str, 12, 2) |
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30 offset = (substr(str, 16, 1) == "Z" ? 0 : offset) |
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31 return timegm(year, mon, mday, hour, min, 0) - offset |
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32 } |
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33 |
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34 BEGIN { |
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35 "date +%z" | getline offset_str |
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36 close("date +%z") |
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37 hour = substr($0, 4, 2) |
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38 min = substr($0, 6, 2) |
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39 tzoffset = substr(zone, 3, 1) hour * 3600 + min * 60 |
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40 |
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41 FS = "[:;]" |
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42 } |
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43 |
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44 { |
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45 gsub("\r", ""); gsub("\t", "\\\\t") |
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46 gsub("^ *", ""); gsub(" *$", "") |
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47 |
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48 if (match($0, "^ ")) { |
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49 event[type] = event[type] substr($0, 2, length($0) - 1) |
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50 } else { |
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51 type = $1 |
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52 i = index($0, ":") |
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53 event[type] = substr($0, i + 1, length($0) - i) |
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54 } |
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55 |
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56 if ($0 ~ /^END:VEVENT/) |
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57 printf("%d\t%d\t%s\t%s\t%s\t%s\n", |
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58 date_ical(event["DTSTART"], offset), |
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59 date_ical(event["DTEND"], offset), |
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60 event["CATEGORIES"], |
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61 event["LOCATION"], |
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62 event["SUMMARY"], |
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63 event["DESCRIPTION"]) |
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64 } |
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