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annotate date.js @ 0:f62b5c395a48

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Initial commit.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sat, 04 Jun 2011 05:02:47 +0200
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children 82905edac9d8
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1 Date.prototype.set8601 = function (string) {
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2 var regexp = "([0-9]{4})(-([0-9]{2})(-([0-9]{2})" +
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3 "(T([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?" +
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4 "(Z|(([-+])([0-9]{2}):([0-9]{2})))?)?)?)?";
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5 var d = string.match(new RegExp(regexp));
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6
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7 var offset = 0;
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8 var date = new Date(d[1], 0, 1);
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9
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10 if (d[3]) { date.setMonth(d[3] - 1); }
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11 if (d[5]) { date.setDate(d[5]); }
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12 if (d[7]) { date.setHours(d[7]); }
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13 if (d[8]) { date.setMinutes(d[8]); }
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14 if (d[10]) { date.setSeconds(d[10]); }
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15 if (d[12]) { date.setMilliseconds(Number("0." + d[12]) * 1000); }
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16 if (d[14]) {
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17 offset = (Number(d[16]) * 60) + Number(d[17]);
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18 offset *= ((d[15] == '-') ? 1 : -1);
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19 }
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20
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21 offset -= date.getTimezoneOffset();
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22 var time = (Number(date) + (offset * 60 * 1000));
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23 this.setTime(Number(time));
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24
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25 return this;
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26 }
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27
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28 Date.prototype.to8601 = function(){
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29 function pad(n){return n<10 ? '0'+n : n}
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30 return this.getUTCFullYear()+'-'
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31 + pad(this.getUTCMonth()+1)+'-'
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32 + pad(this.getUTCDate())+'T'
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33 + pad(this.getUTCHours())+':'
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34 + pad(this.getUTCMinutes())+':'
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35 + pad(this.getUTCSeconds())+'Z';
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36 }
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37
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38 Date.prototype.getRelative = function(){
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39 const s = 1000, m = s*60, h = m*60, d = h*24, y = d*365, M = y/12,
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40 ref = Date.now(),
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41 input = this.getTime(),
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42 delta = ref - input,
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43 year = Math.round((delta/y)*10)/10,
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44 month = Math.round((delta/M)*10)/10,
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45 day = Math.round((delta/d)*10)/10,
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46 hour = Math.round((delta/h)*10)/10,
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47 minute = Math.round((delta/m)*10)/10;
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48
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49 if (year == 1)
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50 return "a year ago";
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51 if (year > 1)
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52 return Math.round(year)+" years ago";
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53
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54 if (month == 1)
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55 return "a month ago";
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56 if (month > 1)
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57 return Math.round(month)+" months ago";
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58
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59 if (day == 1)
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60 return "today";
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61 if (day > 1)
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62 return Math.round(day)+" days ago";
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63
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64 if (hour == 1)
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65 return "an hour ago";
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66 if (hour > 1)
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67 return Math.round(hour)+" hours ago";
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68
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69 if (minute == 1)
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70 return "a minute ago";
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71 if (minute > 1)
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72 return Math.round(minute)+" minutes ago";
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73
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74 return "just now";
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75 };