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ttsv2tcal - 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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ttsv2tcal (1495B) |
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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 gmtime(sec, tm) |
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14 { |
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15 tm["year"] = 1970 |
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16 while (sec >= (s = 86400 * (365 + isleap(tm["year"])))) { |
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17 tm["year"]++ |
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18 sec -= s |
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19 } |
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20 tm["mon"] = 1 |
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21 while (sec >= (s = 86400 * mdays(tm["mon"], tm["year"]))) { |
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22 tm["mon"]++ |
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23 sec -= s |
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24 } |
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25 tm["mday"] = 1 |
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26 while (sec >= (s = 86400)) { |
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27 tm["mday"]++ |
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28 sec -= s |
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29 } |
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30 tm["hour"] = 0 |
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31 while (sec >= 3600) { |
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32 tm["hour"]++ |
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33 sec -= 3600 |
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34 } |
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35 tm["min"] = 0 |
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36 while (sec >= 60) { |
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37 tm["min"]++ |
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38 sec -= 60 |
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39 } |
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40 tm["sec"] = sec |
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41 } |
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42 |
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43 function localtime(sec, tm, |
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44 tz, h, m) |
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45 { |
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46 return gmtime(sec + TZOFFSET, tm) |
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47 } |
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48 |
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49 BEGIN { |
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50 "date +%z" | getline tz |
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51 close("date +%z") |
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52 TZOFFSET = substr(tz, 1, 1) substr(tz, 2, 2)*3600 + substr(tz, 4, 2)*60 |
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53 |
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54 print("TZ" tz) |
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55 |
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56 FS = "\t" |
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57 } |
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58 |
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59 NR == 1 { |
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60 for (i = 1; i <= NF; i++) |
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61 name[i] = $i |
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62 next |
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63 } |
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64 |
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65 { |
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66 for (i = 1; i <= NF; i++) |
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67 ev[name[i]] = $i |
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68 |
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69 print("") |
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70 |
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71 localtime(ev["beg"] + offset, tm) |
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72 printf("%04d-%02d-%02d %02d:%02d\n", |
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73 tm["year"], tm["mon"], tm["mday"], tm["hour"], tm["min"]) |
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74 delete ev["beg"] |
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75 |
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76 localtime(ev["end"] + offset, tm) |
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77 printf("%04d-%02d-%02d %02d:%02d\n", |
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78 tm["year"], tm["mon"], tm["mday"], tm["hour"], tm["min"]) |
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79 delete ev["end"] |
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80 |
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81 for (i = 1; i <= NF; i++) { |
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82 if (name[i] in ev && ev[name[i]]) |
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83 printf(" %s: %s\n", name[i], ev[name[i]]) |
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84 } |
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85 |
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86 delete ev |
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87 } |
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88 |
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89 END { |
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90 print("") |
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91 } |
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