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675 lines
21 KiB
JavaScript
675 lines
21 KiB
JavaScript
/*
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Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojo.date.locale"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
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dojo._hasResource["dojo.date.locale"] = true;
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dojo.provide("dojo.date.locale");
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// Localization methods for Date. Honor local customs using locale-dependent dojo.cldr data.
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dojo.require("dojo.date");
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dojo.require("dojo.cldr.supplemental");
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dojo.require("dojo.regexp");
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dojo.require("dojo.string");
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dojo.require("dojo.i18n");
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// Load the bundles containing localization information for
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// names and formats
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dojo.requireLocalization("dojo.cldr", "gregorian", null, "ROOT,ar,ca,cs,da,de,el,en,en-au,en-ca,en-gb,es,fi,fr,he,hu,it,ja,ko,nb,nl,pl,pt,pt-pt,ru,sk,sl,sv,th,tr,zh,zh-tw");
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//NOTE: Everything in this module assumes Gregorian calendars.
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// Other calendars will be implemented in separate modules.
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(function(){
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// Format a pattern without literals
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function formatPattern(dateObject, bundle, options, pattern){
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return pattern.replace(/([a-z])\1*/ig, function(match){
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var s, pad,
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c = match.charAt(0),
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l = match.length,
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widthList = ["abbr", "wide", "narrow"];
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switch(c){
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case 'G':
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s = bundle[(l < 4) ? "eraAbbr" : "eraNames"][dateObject.getFullYear() < 0 ? 0 : 1];
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break;
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case 'y':
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s = dateObject.getFullYear();
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switch(l){
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case 1:
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break;
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case 2:
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if(!options.fullYear){
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s = String(s); s = s.substr(s.length - 2);
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break;
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}
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// fallthrough
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default:
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pad = true;
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}
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break;
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case 'Q':
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case 'q':
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s = Math.ceil((dateObject.getMonth()+1)/3);
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// switch(l){
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// case 1: case 2:
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pad = true;
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// break;
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// case 3: case 4: // unimplemented
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// }
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break;
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case 'M':
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var m = dateObject.getMonth();
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if(l<3){
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s = m+1; pad = true;
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}else{
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var propM = ["months", "format", widthList[l-3]].join("-");
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s = bundle[propM][m];
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}
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break;
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case 'w':
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var firstDay = 0;
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s = dojo.date.locale._getWeekOfYear(dateObject, firstDay); pad = true;
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break;
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case 'd':
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s = dateObject.getDate(); pad = true;
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break;
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case 'D':
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s = dojo.date.locale._getDayOfYear(dateObject); pad = true;
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break;
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case 'E':
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var d = dateObject.getDay();
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if(l<3){
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s = d+1; pad = true;
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}else{
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var propD = ["days", "format", widthList[l-3]].join("-");
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s = bundle[propD][d];
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}
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break;
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case 'a':
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var timePeriod = (dateObject.getHours() < 12) ? 'am' : 'pm';
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s = bundle['dayPeriods-format-wide-' + timePeriod];
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break;
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case 'h':
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case 'H':
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case 'K':
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case 'k':
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var h = dateObject.getHours();
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// strange choices in the date format make it impossible to write this succinctly
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switch (c){
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case 'h': // 1-12
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s = (h % 12) || 12;
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break;
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case 'H': // 0-23
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s = h;
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break;
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case 'K': // 0-11
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s = (h % 12);
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break;
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case 'k': // 1-24
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s = h || 24;
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break;
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}
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pad = true;
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break;
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case 'm':
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s = dateObject.getMinutes(); pad = true;
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break;
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case 's':
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s = dateObject.getSeconds(); pad = true;
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break;
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case 'S':
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s = Math.round(dateObject.getMilliseconds() * Math.pow(10, l-3)); pad = true;
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break;
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case 'v': // FIXME: don't know what this is. seems to be same as z?
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case 'z':
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// We only have one timezone to offer; the one from the browser
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s = dojo.date.locale._getZone(dateObject, true, options);
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if(s){break;}
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l=4;
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// fallthrough... use GMT if tz not available
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case 'Z':
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var offset = dojo.date.locale._getZone(dateObject, false, options);
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var tz = [
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(offset<=0 ? "+" : "-"),
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dojo.string.pad(Math.floor(Math.abs(offset)/60), 2),
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dojo.string.pad(Math.abs(offset)% 60, 2)
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];
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if(l==4){
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tz.splice(0, 0, "GMT");
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tz.splice(3, 0, ":");
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}
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s = tz.join("");
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break;
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// case 'Y': case 'u': case 'W': case 'F': case 'g': case 'A': case 'e':
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// console.log(match+" modifier unimplemented");
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default:
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throw new Error("dojo.date.locale.format: invalid pattern char: "+pattern);
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}
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if(pad){ s = dojo.string.pad(s, l); }
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return s;
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});
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}
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/*=====
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dojo.date.locale.__FormatOptions = function(){
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// selector: String
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// choice of 'time','date' (default: date and time)
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// formatLength: String
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// choice of long, short, medium or full (plus any custom additions). Defaults to 'short'
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// datePattern:String
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// override pattern with this string
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// timePattern:String
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// override pattern with this string
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// am: String
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// override strings for am in times
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// pm: String
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// override strings for pm in times
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// locale: String
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// override the locale used to determine formatting rules
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// fullYear: Boolean
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// (format only) use 4 digit years whenever 2 digit years are called for
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// strict: Boolean
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// (parse only) strict parsing, off by default
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this.selector = selector;
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this.formatLength = formatLength;
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this.datePattern = datePattern;
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this.timePattern = timePattern;
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this.am = am;
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this.pm = pm;
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this.locale = locale;
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this.fullYear = fullYear;
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this.strict = strict;
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}
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=====*/
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dojo.date.locale._getZone = function(/*Date*/dateObject, /*boolean*/getName, /*dojo.date.locale.__FormatOptions?*/options){
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// summary:
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// Returns the zone (or offset) for the given date and options. This
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// is broken out into a separate function so that it can be overridden
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// by timezone-aware code.
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//
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// dateObject:
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// the date and/or time being formatted.
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//
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// getName:
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// Whether to return the timezone string (if true), or the offset (if false)
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//
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// options:
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// The options being used for formatting
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if(getName){
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return dojo.date.getTimezoneName(dateObject);
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}else{
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return dateObject.getTimezoneOffset();
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}
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};
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dojo.date.locale.format = function(/*Date*/dateObject, /*dojo.date.locale.__FormatOptions?*/options){
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// summary:
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// Format a Date object as a String, using locale-specific settings.
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//
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// description:
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// Create a string from a Date object using a known localized pattern.
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// By default, this method formats both date and time from dateObject.
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// Formatting patterns are chosen appropriate to the locale. Different
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// formatting lengths may be chosen, with "full" used by default.
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// Custom patterns may be used or registered with translations using
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// the dojo.date.locale.addCustomFormats method.
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// Formatting patterns are implemented using [the syntax described at
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// unicode.org](http://www.unicode.org/reports/tr35/tr35-4.html#Date_Format_Patterns)
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//
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// dateObject:
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// the date and/or time to be formatted. If a time only is formatted,
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// the values in the year, month, and day fields are irrelevant. The
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// opposite is true when formatting only dates.
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options = options || {};
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var locale = dojo.i18n.normalizeLocale(options.locale),
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formatLength = options.formatLength || 'short',
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bundle = dojo.date.locale._getGregorianBundle(locale),
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str = [],
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sauce = dojo.hitch(this, formatPattern, dateObject, bundle, options);
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if(options.selector == "year"){
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return _processPattern(bundle["dateFormatItem-yyyy"] || "yyyy", sauce);
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}
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var pattern;
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if(options.selector != "date"){
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pattern = options.timePattern || bundle["timeFormat-"+formatLength];
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if(pattern){str.push(_processPattern(pattern, sauce));}
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}
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if(options.selector != "time"){
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pattern = options.datePattern || bundle["dateFormat-"+formatLength];
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if(pattern){str.push(_processPattern(pattern, sauce));}
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}
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return str.length == 1 ? str[0] : bundle["dateTimeFormat-"+formatLength].replace(/\{(\d+)\}/g,
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function(match, key){ return str[key]; }); // String
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};
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dojo.date.locale.regexp = function(/*dojo.date.locale.__FormatOptions?*/options){
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// summary:
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// Builds the regular needed to parse a localized date
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return dojo.date.locale._parseInfo(options).regexp; // String
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};
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dojo.date.locale._parseInfo = function(/*dojo.date.locale.__FormatOptions?*/options){
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options = options || {};
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var locale = dojo.i18n.normalizeLocale(options.locale),
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bundle = dojo.date.locale._getGregorianBundle(locale),
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formatLength = options.formatLength || 'short',
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datePattern = options.datePattern || bundle["dateFormat-" + formatLength],
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timePattern = options.timePattern || bundle["timeFormat-" + formatLength],
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pattern;
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if(options.selector == 'date'){
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pattern = datePattern;
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}else if(options.selector == 'time'){
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pattern = timePattern;
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}else{
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pattern = bundle["dateTimeFormat-"+formatLength].replace(/\{(\d+)\}/g,
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function(match, key){ return [timePattern, datePattern][key]; });
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}
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var tokens = [],
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re = _processPattern(pattern, dojo.hitch(this, _buildDateTimeRE, tokens, bundle, options));
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return {regexp: re, tokens: tokens, bundle: bundle};
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};
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dojo.date.locale.parse = function(/*String*/value, /*dojo.date.locale.__FormatOptions?*/options){
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// summary:
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// Convert a properly formatted string to a primitive Date object,
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// using locale-specific settings.
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//
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// description:
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// Create a Date object from a string using a known localized pattern.
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// By default, this method parses looking for both date and time in the string.
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// Formatting patterns are chosen appropriate to the locale. Different
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// formatting lengths may be chosen, with "full" used by default.
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// Custom patterns may be used or registered with translations using
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// the dojo.date.locale.addCustomFormats method.
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//
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// Formatting patterns are implemented using [the syntax described at
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// unicode.org](http://www.unicode.org/reports/tr35/tr35-4.html#Date_Format_Patterns)
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// When two digit years are used, a century is chosen according to a sliding
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// window of 80 years before and 20 years after present year, for both `yy` and `yyyy` patterns.
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// year < 100CE requires strict mode.
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//
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// value:
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// A string representation of a date
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var info = dojo.date.locale._parseInfo(options),
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tokens = info.tokens, bundle = info.bundle,
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re = new RegExp("^" + info.regexp + "$", info.strict ? "" : "i"),
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match = re.exec(value);
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if(!match){ return null; } // null
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var widthList = ['abbr', 'wide', 'narrow'],
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result = [1970,0,1,0,0,0,0], // will get converted to a Date at the end
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amPm = "",
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valid = dojo.every(match, function(v, i){
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if(!i){return true;}
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var token=tokens[i-1];
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var l=token.length;
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switch(token.charAt(0)){
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case 'y':
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if(l != 2 && options.strict){
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//interpret year literally, so '5' would be 5 A.D.
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result[0] = v;
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}else{
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if(v<100){
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v = Number(v);
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//choose century to apply, according to a sliding window
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//of 80 years before and 20 years after present year
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var year = '' + new Date().getFullYear(),
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century = year.substring(0, 2) * 100,
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cutoff = Math.min(Number(year.substring(2, 4)) + 20, 99),
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num = (v < cutoff) ? century + v : century - 100 + v;
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result[0] = num;
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}else{
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//we expected 2 digits and got more...
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if(options.strict){
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return false;
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}
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//interpret literally, so '150' would be 150 A.D.
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//also tolerate '1950', if 'yyyy' input passed to 'yy' format
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result[0] = v;
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}
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}
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break;
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case 'M':
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if(l>2){
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var months = bundle['months-format-' + widthList[l-3]].concat();
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if(!options.strict){
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//Tolerate abbreviating period in month part
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//Case-insensitive comparison
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v = v.replace(".","").toLowerCase();
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months = dojo.map(months, function(s){ return s.replace(".","").toLowerCase(); } );
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}
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v = dojo.indexOf(months, v);
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if(v == -1){
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// console.log("dojo.date.locale.parse: Could not parse month name: '" + v + "'.");
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return false;
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}
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}else{
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v--;
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}
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result[1] = v;
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break;
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case 'E':
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case 'e':
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var days = bundle['days-format-' + widthList[l-3]].concat();
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if(!options.strict){
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//Case-insensitive comparison
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v = v.toLowerCase();
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days = dojo.map(days, function(d){return d.toLowerCase();});
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}
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v = dojo.indexOf(days, v);
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if(v == -1){
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// console.log("dojo.date.locale.parse: Could not parse weekday name: '" + v + "'.");
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return false;
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}
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//TODO: not sure what to actually do with this input,
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//in terms of setting something on the Date obj...?
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//without more context, can't affect the actual date
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//TODO: just validate?
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break;
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case 'D':
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result[1] = 0;
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// fallthrough...
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case 'd':
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result[2] = v;
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break;
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case 'a': //am/pm
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var am = options.am || bundle['dayPeriods-format-wide-am'],
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pm = options.pm || bundle['dayPeriods-format-wide-pm'];
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if(!options.strict){
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var period = /\./g;
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v = v.replace(period,'').toLowerCase();
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am = am.replace(period,'').toLowerCase();
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pm = pm.replace(period,'').toLowerCase();
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}
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if(options.strict && v != am && v != pm){
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// console.log("dojo.date.locale.parse: Could not parse am/pm part.");
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return false;
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}
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// we might not have seen the hours field yet, so store the state and apply hour change later
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amPm = (v == pm) ? 'p' : (v == am) ? 'a' : '';
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break;
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case 'K': //hour (1-24)
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if(v == 24){ v = 0; }
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// fallthrough...
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case 'h': //hour (1-12)
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case 'H': //hour (0-23)
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case 'k': //hour (0-11)
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//TODO: strict bounds checking, padding
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if(v > 23){
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// console.log("dojo.date.locale.parse: Illegal hours value");
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return false;
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}
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//in the 12-hour case, adjusting for am/pm requires the 'a' part
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//which could come before or after the hour, so we will adjust later
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result[3] = v;
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break;
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case 'm': //minutes
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result[4] = v;
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break;
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case 's': //seconds
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result[5] = v;
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break;
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case 'S': //milliseconds
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result[6] = v;
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// break;
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// case 'w':
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//TODO var firstDay = 0;
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// default:
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//TODO: throw?
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// console.log("dojo.date.locale.parse: unsupported pattern char=" + token.charAt(0));
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}
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return true;
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});
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var hours = +result[3];
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if(amPm === 'p' && hours < 12){
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result[3] = hours + 12; //e.g., 3pm -> 15
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}else if(amPm === 'a' && hours == 12){
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result[3] = 0; //12am -> 0
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}
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//TODO: implement a getWeekday() method in order to test
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//validity of input strings containing 'EEE' or 'EEEE'...
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var dateObject = new Date(result[0], result[1], result[2], result[3], result[4], result[5], result[6]); // Date
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if(options.strict){
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dateObject.setFullYear(result[0]);
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}
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// Check for overflow. The Date() constructor normalizes things like April 32nd...
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//TODO: why isn't this done for times as well?
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var allTokens = tokens.join(""),
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dateToken = allTokens.indexOf('d') != -1,
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monthToken = allTokens.indexOf('M') != -1;
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if(!valid ||
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(monthToken && dateObject.getMonth() > result[1]) ||
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(dateToken && dateObject.getDate() > result[2])){
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return null;
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}
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// Check for underflow, due to DST shifts. See #9366
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// This assumes a 1 hour dst shift correction at midnight
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// We could compare the timezone offset after the shift and add the difference instead.
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if((monthToken && dateObject.getMonth() < result[1]) ||
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(dateToken && dateObject.getDate() < result[2])){
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dateObject = dojo.date.add(dateObject, "hour", 1);
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}
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return dateObject; // Date
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};
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function _processPattern(pattern, applyPattern, applyLiteral, applyAll){
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//summary: Process a pattern with literals in it
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// Break up on single quotes, treat every other one as a literal, except '' which becomes '
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var identity = function(x){return x;};
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applyPattern = applyPattern || identity;
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applyLiteral = applyLiteral || identity;
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applyAll = applyAll || identity;
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//split on single quotes (which escape literals in date format strings)
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//but preserve escaped single quotes (e.g., o''clock)
|
|
var chunks = pattern.match(/(''|[^'])+/g),
|
|
literal = pattern.charAt(0) == "'";
|
|
|
|
dojo.forEach(chunks, function(chunk, i){
|
|
if(!chunk){
|
|
chunks[i]='';
|
|
}else{
|
|
chunks[i]=(literal ? applyLiteral : applyPattern)(chunk.replace(/''/g, "'"));
|
|
literal = !literal;
|
|
}
|
|
});
|
|
return applyAll(chunks.join(''));
|
|
}
|
|
|
|
function _buildDateTimeRE(tokens, bundle, options, pattern){
|
|
pattern = dojo.regexp.escapeString(pattern);
|
|
if(!options.strict){ pattern = pattern.replace(" a", " ?a"); } // kludge to tolerate no space before am/pm
|
|
return pattern.replace(/([a-z])\1*/ig, function(match){
|
|
// Build a simple regexp. Avoid captures, which would ruin the tokens list
|
|
var s,
|
|
c = match.charAt(0),
|
|
l = match.length,
|
|
p2 = '', p3 = '';
|
|
if(options.strict){
|
|
if(l > 1){ p2 = '0' + '{'+(l-1)+'}'; }
|
|
if(l > 2){ p3 = '0' + '{'+(l-2)+'}'; }
|
|
}else{
|
|
p2 = '0?'; p3 = '0{0,2}';
|
|
}
|
|
switch(c){
|
|
case 'y':
|
|
s = '\\d{2,4}';
|
|
break;
|
|
case 'M':
|
|
s = (l>2) ? '\\S+?' : p2+'[1-9]|1[0-2]';
|
|
break;
|
|
case 'D':
|
|
s = p2+'[1-9]|'+p3+'[1-9][0-9]|[12][0-9][0-9]|3[0-5][0-9]|36[0-6]';
|
|
break;
|
|
case 'd':
|
|
s = '3[01]|[12]\\d|'+p2+'[1-9]';
|
|
break;
|
|
case 'w':
|
|
s = p2+'[1-9]|[1-4][0-9]|5[0-3]';
|
|
break;
|
|
case 'E':
|
|
s = '\\S+';
|
|
break;
|
|
case 'h': //hour (1-12)
|
|
s = p2+'[1-9]|1[0-2]';
|
|
break;
|
|
case 'k': //hour (0-11)
|
|
s = p2+'\\d|1[01]';
|
|
break;
|
|
case 'H': //hour (0-23)
|
|
s = p2+'\\d|1\\d|2[0-3]';
|
|
break;
|
|
case 'K': //hour (1-24)
|
|
s = p2+'[1-9]|1\\d|2[0-4]';
|
|
break;
|
|
case 'm':
|
|
case 's':
|
|
s = '[0-5]\\d';
|
|
break;
|
|
case 'S':
|
|
s = '\\d{'+l+'}';
|
|
break;
|
|
case 'a':
|
|
var am = options.am || bundle['dayPeriods-format-wide-am'],
|
|
pm = options.pm || bundle['dayPeriods-format-wide-pm'];
|
|
if(options.strict){
|
|
s = am + '|' + pm;
|
|
}else{
|
|
s = am + '|' + pm;
|
|
if(am != am.toLowerCase()){ s += '|' + am.toLowerCase(); }
|
|
if(pm != pm.toLowerCase()){ s += '|' + pm.toLowerCase(); }
|
|
if(s.indexOf('.') != -1){ s += '|' + s.replace(/\./g, ""); }
|
|
}
|
|
s = s.replace(/\./g, "\\.");
|
|
break;
|
|
default:
|
|
// case 'v':
|
|
// case 'z':
|
|
// case 'Z':
|
|
s = ".*";
|
|
// console.log("parse of date format, pattern=" + pattern);
|
|
}
|
|
|
|
if(tokens){ tokens.push(match); }
|
|
|
|
return "(" + s + ")"; // add capture
|
|
}).replace(/[\xa0 ]/g, "[\\s\\xa0]"); // normalize whitespace. Need explicit handling of \xa0 for IE.
|
|
}
|
|
})();
|
|
|
|
(function(){
|
|
var _customFormats = [];
|
|
dojo.date.locale.addCustomFormats = function(/*String*/packageName, /*String*/bundleName){
|
|
// summary:
|
|
// Add a reference to a bundle containing localized custom formats to be
|
|
// used by date/time formatting and parsing routines.
|
|
//
|
|
// description:
|
|
// The user may add custom localized formats where the bundle has properties following the
|
|
// same naming convention used by dojo.cldr: `dateFormat-xxxx` / `timeFormat-xxxx`
|
|
// The pattern string should match the format used by the CLDR.
|
|
// See dojo.date.locale.format() for details.
|
|
// The resources must be loaded by dojo.requireLocalization() prior to use
|
|
|
|
_customFormats.push({pkg:packageName,name:bundleName});
|
|
};
|
|
|
|
dojo.date.locale._getGregorianBundle = function(/*String*/locale){
|
|
var gregorian = {};
|
|
dojo.forEach(_customFormats, function(desc){
|
|
var bundle = dojo.i18n.getLocalization(desc.pkg, desc.name, locale);
|
|
gregorian = dojo.mixin(gregorian, bundle);
|
|
}, this);
|
|
return gregorian; /*Object*/
|
|
};
|
|
})();
|
|
|
|
dojo.date.locale.addCustomFormats("dojo.cldr","gregorian");
|
|
|
|
dojo.date.locale.getNames = function(/*String*/item, /*String*/type, /*String?*/context, /*String?*/locale){
|
|
// summary:
|
|
// Used to get localized strings from dojo.cldr for day or month names.
|
|
//
|
|
// item:
|
|
// 'months' || 'days'
|
|
// type:
|
|
// 'wide' || 'narrow' || 'abbr' (e.g. "Monday", "Mon", or "M" respectively, in English)
|
|
// context:
|
|
// 'standAlone' || 'format' (default)
|
|
// locale:
|
|
// override locale used to find the names
|
|
|
|
var label,
|
|
lookup = dojo.date.locale._getGregorianBundle(locale),
|
|
props = [item, context, type];
|
|
if(context == 'standAlone'){
|
|
var key = props.join('-');
|
|
label = lookup[key];
|
|
// Fall back to 'format' flavor of name
|
|
if(label[0] == 1){ label = undefined; } // kludge, in the absence of real aliasing support in dojo.cldr
|
|
}
|
|
props[1] = 'format';
|
|
|
|
// return by copy so changes won't be made accidentally to the in-memory model
|
|
return (label || lookup[props.join('-')]).concat(); /*Array*/
|
|
};
|
|
|
|
dojo.date.locale.isWeekend = function(/*Date?*/dateObject, /*String?*/locale){
|
|
// summary:
|
|
// Determines if the date falls on a weekend, according to local custom.
|
|
|
|
var weekend = dojo.cldr.supplemental.getWeekend(locale),
|
|
day = (dateObject || new Date()).getDay();
|
|
if(weekend.end < weekend.start){
|
|
weekend.end += 7;
|
|
if(day < weekend.start){ day += 7; }
|
|
}
|
|
return day >= weekend.start && day <= weekend.end; // Boolean
|
|
};
|
|
|
|
// These are used only by format and strftime. Do they need to be public? Which module should they go in?
|
|
|
|
dojo.date.locale._getDayOfYear = function(/*Date*/dateObject){
|
|
// summary: gets the day of the year as represented by dateObject
|
|
return dojo.date.difference(new Date(dateObject.getFullYear(), 0, 1, dateObject.getHours()), dateObject) + 1; // Number
|
|
};
|
|
|
|
dojo.date.locale._getWeekOfYear = function(/*Date*/dateObject, /*Number*/firstDayOfWeek){
|
|
if(arguments.length == 1){ firstDayOfWeek = 0; } // Sunday
|
|
|
|
var firstDayOfYear = new Date(dateObject.getFullYear(), 0, 1).getDay(),
|
|
adj = (firstDayOfYear - firstDayOfWeek + 7) % 7,
|
|
week = Math.floor((dojo.date.locale._getDayOfYear(dateObject) + adj - 1) / 7);
|
|
|
|
// if year starts on the specified day, start counting weeks at 1
|
|
if(firstDayOfYear == firstDayOfWeek){ week++; }
|
|
|
|
return week; // Number
|
|
};
|
|
|
|
}
|