2 Copyright (c) 2009, Yahoo! Inc. All rights reserved.
3 Code licensed under the BSD License:
4 http://developer.yahoo.net/yui/license.txt
8 YUI.add('datatype-date-format', function(Y) {
11 * The DataType Utility provides type-conversion and string-formatting
12 * convenience methods for various JavaScript object types.
21 * @submodule datatype-date
25 * Format date submodule implements strftime formatters for javascript based on the
26 * Open Group specification defined at
27 * http://www.opengroup.org/onlinepubs/007908799/xsh/strftime.html
28 * This implementation does not include modified conversion specifiers (i.e., Ex and Ox)
31 * @submodule datatype-date-format
35 * DataType.Date provides a set of utility functions to operate against Date objects.
37 * @class DataType.Date
42 * Pad a number with leading spaces, zeroes or something else
44 * @param x {Number} The number to be padded
45 * @param pad {String} The character to pad the number with
46 * @param r {Number} (optional) The base of the pad, eg, 10 implies to two digits, 100 implies to 3 digits.
49 var xPad=function (x, pad, r)
51 if(typeof r === "undefined")
56 for( ; parseInt(x, 10)<r && r>1; r/=10) {
63 * Default date format.
66 * @property dateFormat
70 Y.config.dateFormat = Y.config.dateFormat || "%Y-%m-%d";
73 * Default locale for the YUI instance.
79 Y.config.locale = Y.config.locale || "en";
83 a: function (d, l) { return l.a[d.getDay()]; },
84 A: function (d, l) { return l.A[d.getDay()]; },
85 b: function (d, l) { return l.b[d.getMonth()]; },
86 B: function (d, l) { return l.B[d.getMonth()]; },
87 C: function (d) { return xPad(parseInt(d.getFullYear()/100, 10), 0); },
90 g: function (d) { return xPad(parseInt(Dt.formats.G(d)%100, 10), 0); },
92 var y = d.getFullYear();
93 var V = parseInt(Dt.formats.V(d), 10);
94 var W = parseInt(Dt.formats.W(d), 10);
98 } else if(W===0 && V>=52) {
104 H: ["getHours", "0"],
105 I: function (d) { var I=d.getHours()%12; return xPad(I===0?12:I, 0); },
107 var gmd_1 = new Date("" + d.getFullYear() + "/1/1 GMT");
108 var gmdate = new Date("" + d.getFullYear() + "/" + (d.getMonth()+1) + "/" + d.getDate() + " GMT");
109 var ms = gmdate - gmd_1;
110 var doy = parseInt(ms/60000/60/24, 10)+1;
111 return xPad(doy, 0, 100);
113 k: ["getHours", " "],
114 l: function (d) { var I=d.getHours()%12; return xPad(I===0?12:I, " "); },
115 m: function (d) { return xPad(d.getMonth()+1, 0); },
116 M: ["getMinutes", "0"],
117 p: function (d, l) { return l.p[d.getHours() >= 12 ? 1 : 0 ]; },
118 P: function (d, l) { return l.P[d.getHours() >= 12 ? 1 : 0 ]; },
119 s: function (d, l) { return parseInt(d.getTime()/1000, 10); },
120 S: ["getSeconds", "0"],
121 u: function (d) { var dow = d.getDay(); return dow===0?7:dow; },
123 var doy = parseInt(Dt.formats.j(d), 10);
124 var rdow = 6-d.getDay();
125 var woy = parseInt((doy+rdow)/7, 10);
129 var woy = parseInt(Dt.formats.W(d), 10);
130 var dow1_1 = (new Date("" + d.getFullYear() + "/1/1")).getDay();
131 // First week is 01 and not 00 as in the case of %U and %W,
132 // so we add 1 to the final result except if day 1 of the year
133 // is a Monday (then %W returns 01).
134 // We also need to subtract 1 if the day 1 of the year is
135 // Friday-Sunday, so the resulting equation becomes:
136 var idow = woy + (dow1_1 > 4 || dow1_1 <= 1 ? 0 : 1);
137 if(idow === 53 && (new Date("" + d.getFullYear() + "/12/31")).getDay() < 4)
143 idow = Dt.formats.V(new Date("" + (d.getFullYear()-1) + "/12/31"));
146 return xPad(idow, 0);
150 var doy = parseInt(Dt.formats.j(d), 10);
151 var rdow = 7-Dt.formats.u(d);
152 var woy = parseInt((doy+rdow)/7, 10);
153 return xPad(woy, 0, 10);
155 y: function (d) { return xPad(d.getFullYear()%100, 0); },
158 var o = d.getTimezoneOffset();
159 var H = xPad(parseInt(Math.abs(o/60), 10), 0);
160 var M = xPad(Math.abs(o%60), 0);
161 return (o>0?"-":"+") + H + M;
164 var tz = d.toString().replace(/^.*:\d\d( GMT[+-]\d+)? \(?([A-Za-z ]+)\)?\d*$/, "$2").replace(/[a-z ]/g, "");
166 tz = Dt.formats.z(d);
170 "%": function (d) { return "%"; }
185 //"+": "%a %b %e %T %Z %Y"
189 * Takes a native JavaScript Date and formats it as a string for display to user.
193 * @param oDate {Date} Date.
194 * @param oConfig {Object} (Optional) Object literal of configuration values:
196 * <dt>format {String} (Optional)</dt>
199 * Any strftime string is supported, such as "%I:%M:%S %p". strftime has several format specifiers defined by the Open group at
200 * <a href="http://www.opengroup.org/onlinepubs/007908799/xsh/strftime.html">http://www.opengroup.org/onlinepubs/007908799/xsh/strftime.html</a>
201 * PHP added a few of its own, defined at <a href="http://www.php.net/strftime">http://www.php.net/strftime</a>
204 * This javascript implementation supports all the PHP specifiers and a few more. The full list is below.
207 * If not specified, it defaults to the ISO8601 standard date format: %Y-%m-%d. This may be overridden by changing Y.config.dateFormat
210 * <dt>%a</dt> <dd>abbreviated weekday name according to the current locale</dd>
211 * <dt>%A</dt> <dd>full weekday name according to the current locale</dd>
212 * <dt>%b</dt> <dd>abbreviated month name according to the current locale</dd>
213 * <dt>%B</dt> <dd>full month name according to the current locale</dd>
214 * <dt>%c</dt> <dd>preferred date and time representation for the current locale</dd>
215 * <dt>%C</dt> <dd>century number (the year divided by 100 and truncated to an integer, range 00 to 99)</dd>
216 * <dt>%d</dt> <dd>day of the month as a decimal number (range 01 to 31)</dd>
217 * <dt>%D</dt> <dd>same as %m/%d/%y</dd>
218 * <dt>%e</dt> <dd>day of the month as a decimal number, a single digit is preceded by a space (range " 1" to "31")</dd>
219 * <dt>%F</dt> <dd>same as %Y-%m-%d (ISO 8601 date format)</dd>
220 * <dt>%g</dt> <dd>like %G, but without the century</dd>
221 * <dt>%G</dt> <dd>The 4-digit year corresponding to the ISO week number</dd>
222 * <dt>%h</dt> <dd>same as %b</dd>
223 * <dt>%H</dt> <dd>hour as a decimal number using a 24-hour clock (range 00 to 23)</dd>
224 * <dt>%I</dt> <dd>hour as a decimal number using a 12-hour clock (range 01 to 12)</dd>
225 * <dt>%j</dt> <dd>day of the year as a decimal number (range 001 to 366)</dd>
226 * <dt>%k</dt> <dd>hour as a decimal number using a 24-hour clock (range 0 to 23); single digits are preceded by a blank. (See also %H.)</dd>
227 * <dt>%l</dt> <dd>hour as a decimal number using a 12-hour clock (range 1 to 12); single digits are preceded by a blank. (See also %I.) </dd>
228 * <dt>%m</dt> <dd>month as a decimal number (range 01 to 12)</dd>
229 * <dt>%M</dt> <dd>minute as a decimal number</dd>
230 * <dt>%n</dt> <dd>newline character</dd>
231 * <dt>%p</dt> <dd>either "AM" or "PM" according to the given time value, or the corresponding strings for the current locale</dd>
232 * <dt>%P</dt> <dd>like %p, but lower case</dd>
233 * <dt>%r</dt> <dd>time in a.m. and p.m. notation equal to %I:%M:%S %p</dd>
234 * <dt>%R</dt> <dd>time in 24 hour notation equal to %H:%M</dd>
235 * <dt>%s</dt> <dd>number of seconds since the Epoch, ie, since 1970-01-01 00:00:00 UTC</dd>
236 * <dt>%S</dt> <dd>second as a decimal number</dd>
237 * <dt>%t</dt> <dd>tab character</dd>
238 * <dt>%T</dt> <dd>current time, equal to %H:%M:%S</dd>
239 * <dt>%u</dt> <dd>weekday as a decimal number [1,7], with 1 representing Monday</dd>
240 * <dt>%U</dt> <dd>week number of the current year as a decimal number, starting with the
241 * first Sunday as the first day of the first week</dd>
242 * <dt>%V</dt> <dd>The ISO 8601:1988 week number of the current year as a decimal number,
243 * range 01 to 53, where week 1 is the first week that has at least 4 days
244 * in the current year, and with Monday as the first day of the week.</dd>
245 * <dt>%w</dt> <dd>day of the week as a decimal, Sunday being 0</dd>
246 * <dt>%W</dt> <dd>week number of the current year as a decimal number, starting with the
247 * first Monday as the first day of the first week</dd>
248 * <dt>%x</dt> <dd>preferred date representation for the current locale without the time</dd>
249 * <dt>%X</dt> <dd>preferred time representation for the current locale without the date</dd>
250 * <dt>%y</dt> <dd>year as a decimal number without a century (range 00 to 99)</dd>
251 * <dt>%Y</dt> <dd>year as a decimal number including the century</dd>
252 * <dt>%z</dt> <dd>numerical time zone representation</dd>
253 * <dt>%Z</dt> <dd>time zone name or abbreviation</dd>
254 * <dt>%%</dt> <dd>a literal "%" character</dd>
257 * <dt>locale {String} (Optional)</dt>
259 * The locale to use when displaying days of week, months of the year, and other locale specific
260 * strings. If not specified, this defaults to "en" (though this may be overridden by changing Y.config.locale).
261 * The following locales are built in:
266 * <dd>US English</dd>
268 * <dd>British English</dd>
270 * <dd>Australian English (identical to British English)</dd>
272 * More locales may be added by subclassing of Y.DataType.Date.Locale["en"].
273 * See Y.DataType.Date.Locale for more information.
276 * @return {String} Formatted date for display.
278 format : function (oDate, oConfig) {
279 oConfig = oConfig || {};
281 if(!Y.Lang.isDate(oDate)) {
282 return Y.Lang.isValue(oDate) ? oDate : "";
285 var format = oConfig.format || Y.config.dateFormat,
286 sLocale = oConfig.locale || Y.config.locale,
287 LOCALE = Y.DataType.Date.Locale;
289 sLocale = sLocale.replace(/_/g, "-");
291 // Make sure we have a definition for the requested locale, or default to en.
292 if(!LOCALE[sLocale]) {
293 var tmpLocale = sLocale.replace(/-[a-zA-Z]+$/, "");
294 if(tmpLocale in LOCALE) {
296 } else if(Y.config.locale in LOCALE) {
297 sLocale = Y.config.locale;
303 var aLocale = LOCALE[sLocale];
305 var replace_aggs = function (m0, m1) {
306 var f = Dt.aggregates[m1];
307 return (f === "locale" ? aLocale[m1] : f);
310 var replace_formats = function (m0, m1) {
311 var f = Dt.formats[m1];
312 switch(Y.Lang.type(f)) {
313 case "string": // string => built in date function
315 case "function": // function => our own function
316 return f.call(oDate, oDate, aLocale);
317 case "array": // built in function with padding
318 if(Y.Lang.type(f[0]) === "string") {
319 return xPad(oDate[f[0]](), f[1]);
320 } // no break; (fall through to default:)
326 // First replace aggregates (run in a loop because an agg may be made up of other aggs)
327 while(format.match(/%[cDFhnrRtTxX]/)) {
328 format = format.replace(/%([cDFhnrRtTxX])/g, replace_aggs);
331 // Now replace formats (do not run in a loop otherwise %%a will be replace with the value of %a)
332 var str = format.replace(/%([aAbBCdegGHIjklmMpPsSuUVwWyYzZ%])/g, replace_formats);
334 replace_aggs = replace_formats = undefined;
340 Y.mix(Y.namespace("DataType.Date"), Dt);
347 * The Date.Locale class is a container for all localised date strings
348 * used by Y.DataType.Date. It is used internally, but may be extended
349 * to provide new date localisations.
351 * To create your own Locale, follow these steps:
353 * <li>Find an existing locale that matches closely with your needs</li>
354 * <li>Use this as your base class. Use Y.DataType.Date.Locale["en"] if nothing
356 * <li>Create your own class as an extension of the base class using
357 * Y.merge, and add your own localisations where needed.</li>
359 * See the Y.DataType.Date.Locale["en-US"] and Y.DataType.Date.Locale["en-GB"]
360 * classes which extend Y.DataType.Date.Locale["en"].
362 * For example, to implement locales for French french and Canadian french,
363 * we would do the following:
365 * <li>For French french, we have no existing similar locale, so use
366 * Y.DataType.Date.Locale["en"] as the base, and extend it:
368 * Y.DataType.Date.Locale["fr"] = Y.merge(Y.DataType.Date.Locale, {
369 * a: ["dim", "lun", "mar", "mer", "jeu", "ven", "sam"],
370 * A: ["dimanche", "lundi", "mardi", "mercredi", "jeudi", "vendredi", "samedi"],
371 * b: ["jan", "fév", "mar", "avr", "mai", "jun", "jui", "aoû", "sep", "oct", "nov", "déc"],
372 * B: ["janvier", "février", "mars", "avril", "mai", "juin", "juillet", "août", "septembre", "octobre", "novembre", "décembre"],
373 * c: "%a %d %b %Y %T %Z",
381 * <li>For Canadian french, we start with French french and change the meaning of \%x:
383 * Y.DataType.Date.Locale["fr-CA"] = Y.merge(Y.DataType.Date.Locale["fr"], {
390 * With that, you can use your new locales:
392 * var d = new Date("2008/04/22");
393 * Y.DataType.Date.format(d, { format: "%A, %d %B == %x", locale: "fr" });
397 * mardi, 22 avril == 22.04.2008
401 * Y.DataType.Date.format(d, {format: "%A, %d %B == %x", locale: "fr-CA" });
405 * mardi, 22 avril == 2008-04-22
408 * @class DataType.Date.Locale
412 a: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
413 A: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
414 b: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
415 B: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
416 c: "%a %d %b %Y %T %Z",
424 Y.namespace("DataType.Date.Locale");
426 Y.DataType.Date.Locale["en"] = YDateEn;
428 Y.DataType.Date.Locale["en-US"] = Y.merge(YDateEn, {
429 c: "%a %d %b %Y %I:%M:%S %p %Z",
434 Y.DataType.Date.Locale["en-GB"] = Y.merge(YDateEn, {
437 Y.DataType.Date.Locale["en-AU"] = Y.merge(YDateEn);