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annotate iso8601.js @ 18:75625771e410

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author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Tue, 19 Oct 2010 18:51:34 +0200
parents 9ee956af41e3
children 7cfcd7d5796c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Thanks to Paul Sowden for this script.
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3 * http://delete.me.uk/2005/03/iso8601.html
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4 */
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5
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6 Date.prototype.setISO8601 = function(dString){
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7 var d;
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8 var regexp = /(\d\d\d\d)(-)?(\d\d)(-)?(\d\d)(T)?(\d\d)(:)?(\d\d)(:)?(\d\d)(\.\d+)?(Z|([+-])(\d\d)(:)?(\d\d))/;
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9 if ((d = dString.match(regexp))) {
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10 var offset = 0;
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11 this.setUTCDate(1);
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12 this.setUTCFullYear(parseInt(d[1],10));
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13 this.setUTCMonth(parseInt(d[3],10) - 1);
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14 this.setUTCDate(parseInt(d[5],10));
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15 this.setUTCHours(parseInt(d[7],10));
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16 this.setUTCMinutes(parseInt(d[9],10));
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17 this.setUTCSeconds(parseInt(d[11],10));
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18 if (d[12])
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19 this.setUTCMilliseconds(parseFloat(d[12]) * 1000);
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20 else
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21 this.setUTCMilliseconds(0);
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22 if (d[13] != 'Z') {
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23 offset = (d[15] * 60) + parseInt(d[17],10);
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24 offset *= ((d[14] == '-') ? -1 : 1);
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25 this.setTime(this.getTime() - offset * 60 * 1000);
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26 }
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27 } else
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28 this.setTime(Date.parse(dString));
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29 return this;
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30 };
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31
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32 Date.prototype.toString = function (format, offset) {
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33 /* accepted values for the format [1-6]:
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34 1 Year:
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35 YYYY (eg 1997)
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36 2 Year and month:
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37 YYYY-MM (eg 1997-07)
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38 3 Complete date:
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39 YYYY-MM-DD (eg 1997-07-16)
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40 4 Complete date plus hours and minutes:
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41 YYYY-MM-DDThh:mmTZD (eg 1997-07-16T19:20+01:00)
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42 5 Complete date plus hours, minutes and seconds:
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43 YYYY-MM-DDThh:mm:ssTZD (eg 1997-07-16T19:20:30+01:00)
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44 6 Complete date plus hours, minutes, seconds and a decimal
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45 fraction of a second
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46 YYYY-MM-DDThh:mm:ss.sTZD (eg 1997-07-16T19:20:30.45+01:00)
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47 */
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48 if (!format)
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49 var format = 5;
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50 if (!offset) {
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51 var offset = 'Z';
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52 var date = this;
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53 } else {
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54 var d = offset.match(/([-+])([0-9]{2}):([0-9]{2})/);
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55 var offsetnum = (Number(d[2]) * 60) + Number(d[3]);
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56 offsetnum *= ((d[1] == '-') ? -1 : 1);
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57 var date = new Date(Number(Number(this) + (offsetnum * 60000)));
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58 }
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59
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60 var zeropad = function (num) { return ((num < 10) ? '0' : '') + num; };
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61
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62 var str = "";
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63 str += date.getUTCFullYear();
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64 if (format > 1)
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65 str += "-" + zeropad(date.getUTCMonth() + 1);
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66 if (format > 2)
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67 str += "-" + zeropad(date.getUTCDate());
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68 if (format > 3)
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69 str += "T" + zeropad(date.getUTCHours()) +
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70 ":" + zeropad(date.getUTCMinutes());
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71 if (format > 5) {
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72 var secs = Number(date.getUTCSeconds() + "." +
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73 ((date.getUTCMilliseconds() < 100) ? '0' : '') +
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74 zeropad(date.getUTCMilliseconds()));
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75 str += ":" + zeropad(secs);
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76 } else if (format > 4)
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77 str += ":" + zeropad(date.getUTCSeconds());
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78
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79 if (format > 3)
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80 str += offset;
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81 return str;
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82 };