|
| 1 | +d3.time.format = function(template) { |
| 2 | + var format = {}; |
| 3 | + |
| 4 | + format.format = function(date) { |
| 5 | + var string = [], |
| 6 | + i = -1, |
| 7 | + j = 0, |
| 8 | + n = template.length, |
| 9 | + c, |
| 10 | + f; |
| 11 | + while (++i < n) { |
| 12 | + if (template.charCodeAt(i) == 37) { |
| 13 | + string.push( |
| 14 | + template.substring(j, i), |
| 15 | + f = d3_time_formats(c = template.charAt(i + 1)) |
| 16 | + ? f(date) : c); |
| 17 | + j = i + 1; |
| 18 | + } |
| 19 | + } |
| 20 | + return string.join(""); |
| 21 | + }; |
| 22 | + |
| 23 | + // TODO format.parse = function(string) {}; |
| 24 | + |
| 25 | + return format; |
| 26 | +}; |
| 27 | + |
| 28 | +var d3_time_zfill2 = d3.format("02d"), |
| 29 | + d3_time_zfill3 = d3.format("03d"), |
| 30 | + d3_time_zfill4 = d3.format("04d"), |
| 31 | + d3_time_sfill2 = d3.format(" 2d"); |
| 32 | + |
| 33 | +var d3_time_formats = { |
| 34 | + "a": function(d) { return d3_time_weekdays[d.getDay()].substring(0, 3); }, |
| 35 | + "A": function(d) { return d3_time_weekdays[d.getDay()]; }, |
| 36 | + "b": function(d) { return d3_time_months[d.getMonth()].substring(0, 3); }, |
| 37 | + "B": function(d) { return d3_time_months[d.getMonth()]; }, |
| 38 | + "c": d3_time_localeFull, |
| 39 | + "d": function(d) { return d3_time_zfill2(d.getDate()); }, |
| 40 | + "e": function(d) { return d3_time_sfill2(d.getDate()); }, |
| 41 | + "H": function(d) { return d3_time_zfill2(d.getHours()); }, |
| 42 | + "I": function(d) { return d3_time_zfill2(d.getHours() % 12 || 12); }, |
| 43 | + "j": d3_time_dayOfYear, |
| 44 | + "m": function(d) { return d3_time_zfill2(d.getMonth() + 1); }, |
| 45 | + "M": function(d) { return d3_time_zfill2(d.getMinutes()); }, |
| 46 | + "p": function(d) { return d.getHours() >= 12 ? "PM" : "AM"; }, |
| 47 | + "S": function(d) { return d3_time_zfill2(d.getSeconds()); }, |
| 48 | + "U": d3_time_weekNumberSunday, |
| 49 | + "w": function(d) { return d.getDay(); }, |
| 50 | + "W": d3_time_weekNumberMonday, |
| 51 | + "x": d3_time_localeDate, |
| 52 | + "X": d3_time_localeTime, |
| 53 | + "y": function(d) { return d3_time_zfill2(d.getYear() % 100); }, |
| 54 | + "Y": function(d) { return d3_time_zfill4(d.getFullYear() % 10000); }, |
| 55 | + "Z": d3_time_zone, |
| 56 | + "%": function(d) { return "%"; } |
| 57 | +}; |
| 58 | + |
| 59 | +var d3_time_localeDate = d3.time.format("%m/%d/%y"), |
| 60 | + d3_time_localeTime = d3.time.format("%H:%M:%S"), |
| 61 | + d3_time_localeFull = d3.time.format("%a %b %e %H:%M:%S %Y"); |
| 62 | + |
| 63 | +var d3_time_weekdays = [ |
| 64 | + "Sunday", |
| 65 | + "Monday", |
| 66 | + "Tuesday", |
| 67 | + "Wednesday", |
| 68 | + "Thursday", |
| 69 | + "Friday", |
| 70 | + "Saturday", |
| 71 | + "Sunday" |
| 72 | +]; |
| 73 | + |
| 74 | +var d3_time_months = [ |
| 75 | + "January", |
| 76 | + "February", |
| 77 | + "March", |
| 78 | + "April", |
| 79 | + "May", |
| 80 | + "June", |
| 81 | + "July", |
| 82 | + "August", |
| 83 | + "September", |
| 84 | + "October", |
| 85 | + "November", |
| 86 | + "December" |
| 87 | +]; |
| 88 | + |
| 89 | +function d3_time_dayOfYear(d) { |
| 90 | + return d3_time_zfill3(1 + ~~((d - new Date(d.getFullYear(), 0, 1)) / 864e5)); |
| 91 | +} |
| 92 | + |
| 93 | +function d3_time_weekNumberSunday(d) { |
| 94 | + var d0 = new Date(d.getFullYear(), 0, 1); |
| 95 | + return d3_time_zfill2(~~(((d - d0) / 864e5 + d0.getDay()) / 7)); |
| 96 | +} |
| 97 | + |
| 98 | +function d3_time_weekNumberMonday(d) { |
| 99 | + var d0 = new Date(d.getFullYear(), 0, 1); |
| 100 | + return d3_time_zfill2(~~(((d - d0) / 864e5 + (d0.getDay() + 6) % 7) / 7)); |
| 101 | +} |
| 102 | + |
| 103 | +// TODO table of time zone offset names? |
| 104 | +function d3_time_zone(d) { |
| 105 | + var z = d.getTimezoneOffset(), |
| 106 | + zs = z < 0 ? "-" : "+", |
| 107 | + zh = ~~(Math.abs(z) / 60), |
| 108 | + zm = Math.abs(z) % 60; |
| 109 | + return zs + d3_time_zfill2(zh) + d3_time_zfill2(zm); |
| 110 | +} |
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