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/*
        Copyright (c) 2004-2006, The Dojo Foundation
        All Rights Reserved.

        Licensed under the Academic Free License version 2.1 or above OR the
        modified BSD license. For more information on Dojo licensing, see:

                http://dojotoolkit.org/community/licensing.shtml
*/



dojo.provide("dojo.date.format");
dojo.require("dojo.date.common");
dojo.require("dojo.date.supplemental");
dojo.require("dojo.lang.array");
dojo.require("dojo.lang.common");
dojo.require("dojo.lang.func");
dojo.require("dojo.string.common");
dojo.require("dojo.i18n.common");
dojo.requireLocalization("dojo.i18n.calendar", "gregorian", null, "ko,zh-cn,zh,sv,ja,en,zh-tw,it,hu,nl,fi,zh-hk,fr,pt,ROOT,es,de,pt-br");
dojo.requireLocalization("dojo.i18n.calendar", "gregorianExtras", null, "zh,ROOT,ja");
(function () {
        dojo.date.format = function (dateObject, options) {
                if (typeof options == "string") {
                        dojo.deprecated("dojo.date.format", "To format dates with POSIX-style strings, please use dojo.date.strftime instead", "0.5");
                        return dojo.date.strftime(dateObject, options);
                }
                function formatPattern(dateObject, pattern) {
                        return pattern.replace(/([a-z])\1*/ig, function (match) {
                                var s;
                                var c = match.charAt(0);
                                var l = match.length;
                                var pad;
                                var widthList = ["abbr", "wide", "narrow"];
                                switch (c) {
                                  case "G":
                                        if (l > 3) {
                                                dojo.unimplemented("Era format not implemented");
                                        }
                                        s = info.eras[dateObject.getFullYear() < 0 ? 1 : 0];
                                        break;
                                  case "y":
                                        s = dateObject.getFullYear();
                                        switch (l) {
                                          case 1:
                                                break;
                                          case 2:
                                                s = String(s).substr(-2);
                                                break;
                                          default:
                                                pad = true;
                                        }
                                        break;
                                  case "Q":
                                  case "q":
                                        s = Math.ceil((dateObject.getMonth() + 1) / 3);
                                        switch (l) {
                                          case 1:
                                          case 2:
                                                pad = true;
                                                break;
                                          case 3:
                                          case 4:
                                                dojo.unimplemented("Quarter format not implemented");
                                        }
                                        break;
                                  case "M":
                                  case "L":
                                        var m = dateObject.getMonth();
                                        var width;
                                        switch (l) {
                                          case 1:
                                          case 2:
                                                s = m + 1;
                                                pad = true;
                                                break;
                                          case 3:
                                          case 4:
                                          case 5:
                                                width = widthList[l - 3];
                                                break;
                                        }
                                        if (width) {
                                                var type = (c == "L") ? "standalone" : "format";
                                                var prop = ["months", type, width].join("-");
                                                s = info[prop][m];
                                        }
                                        break;
                                  case "w":
                                        var firstDay = 0;
                                        s = dojo.date.getWeekOfYear(dateObject, firstDay);
                                        pad = true;
                                        break;
                                  case "d":
                                        s = dateObject.getDate();
                                        pad = true;
                                        break;
                                  case "D":
                                        s = dojo.date.getDayOfYear(dateObject);
                                        pad = true;
                                        break;
                                  case "E":
                                  case "e":
                                  case "c":
                                        var d = dateObject.getDay();
                                        var width;
                                        switch (l) {
                                          case 1:
                                          case 2:
                                                if (c == "e") {
                                                        var first = dojo.date.getFirstDayOfWeek(options.locale);
                                                        d = (d - first + 7) % 7;
                                                }
                                                if (c != "c") {
                                                        s = d + 1;
                                                        pad = true;
                                                        break;
                                                }
                                          case 3:
                                          case 4:
                                          case 5:
                                                width = widthList[l - 3];
                                                break;
                                        }
                                        if (width) {
                                                var type = (c == "c") ? "standalone" : "format";
                                                var prop = ["days", type, width].join("-");
                                                s = info[prop][d];
                                        }
                                        break;
                                  case "a":
                                        var timePeriod = (dateObject.getHours() < 12) ? "am" : "pm";
                                        s = info[timePeriod];
                                        break;
                                  case "h":
                                  case "H":
                                  case "K":
                                  case "k":
                                        var h = dateObject.getHours();
                                        switch (c) {
                                          case "h":
                                                s = (h % 12) || 12;
                                                break;
                                          case "H":
                                                s = h;
                                                break;
                                          case "K":
                                                s = (h % 12);
                                                break;
                                          case "k":
                                                s = h || 24;
                                                break;
                                        }
                                        pad = true;
                                        break;
                                  case "m":
                                        s = dateObject.getMinutes();
                                        pad = true;
                                        break;
                                  case "s":
                                        s = dateObject.getSeconds();
                                        pad = true;
                                        break;
                                  case "S":
                                        s = Math.round(dateObject.getMilliseconds() * Math.pow(10, l - 3));
                                        break;
                                  case "v":
                                  case "z":
                                        s = dojo.date.getTimezoneName(dateObject);
                                        if (s) {
                                                break;
                                        }
                                        l = 4;
                                  case "Z":
                                        var offset = dateObject.getTimezoneOffset();
                                        var tz = [(offset <= 0 ? "+" : "-"), dojo.string.pad(Math.floor(Math.abs(offset) / 60), 2), dojo.string.pad(Math.abs(offset) % 60, 2)];
                                        if (l == 4) {
                                                tz.splice(0, 0, "GMT");
                                                tz.splice(3, 0, ":");
                                        }
                                        s = tz.join("");
                                        break;
                                  case "Y":
                                  case "u":
                                  case "W":
                                  case "F":
                                  case "g":
                                  case "A":
                                        dojo.debug(match + " modifier not yet implemented");
                                        s = "?";
                                        break;
                                  default:
                                        dojo.raise("dojo.date.format: invalid pattern char: " + pattern);
                                }
                                if (pad) {
                                        s = dojo.string.pad(s, l);
                                }
                                return s;
                        });
                }
                options = options || {};
                var locale = dojo.hostenv.normalizeLocale(options.locale);
                var formatLength = options.formatLength || "full";
                var info = dojo.date._getGregorianBundle(locale);
                var str = [];
                var sauce = dojo.lang.curry(this, formatPattern, dateObject);
                if (options.selector != "timeOnly") {
                        var datePattern = options.datePattern || info["dateFormat-" + formatLength];
                        if (datePattern) {
                                str.push(_processPattern(datePattern, sauce));
                        }
                }
                if (options.selector != "dateOnly") {
                        var timePattern = options.timePattern || info["timeFormat-" + formatLength];
                        if (timePattern) {
                                str.push(_processPattern(timePattern, sauce));
                        }
                }
                var result = str.join(" ");
                return result;
        };
        dojo.date.parse = function (value, options) {
                options = options || {};
                var locale = dojo.hostenv.normalizeLocale(options.locale);
                var info = dojo.date._getGregorianBundle(locale);
                var formatLength = options.formatLength || "full";
                if (!options.selector) {
                        options.selector = "dateOnly";
                }
                var datePattern = options.datePattern || info["dateFormat-" + formatLength];
                var timePattern = options.timePattern || info["timeFormat-" + formatLength];
                var pattern;
                if (options.selector == "dateOnly") {
                        pattern = datePattern;
                } else {
                        if (options.selector == "timeOnly") {
                                pattern = timePattern;
                        } else {
                                if (options.selector == "dateTime") {
                                        pattern = datePattern + " " + timePattern;
                                } else {
                                        var msg = "dojo.date.parse: Unknown selector param passed: '" + options.selector + "'.";
                                        msg += " Defaulting to date pattern.";
                                        dojo.debug(msg);
                                        pattern = datePattern;
                                }
                        }
                }
                var groups = [];
                var dateREString = _processPattern(pattern, dojo.lang.curry(this, _buildDateTimeRE, groups, info, options));
                var dateRE = new RegExp("^" + dateREString + "$");
                var match = dateRE.exec(value);
                if (!match) {
                        return null;
                }
                var widthList = ["abbr", "wide", "narrow"];
                var result = new Date(1972, 0);
                var expected = {};
                for (var i = 1; i < match.length; i++) {
                        var grp = groups[i - 1];
                        var l = grp.length;
                        var v = match[i];
                        switch (grp.charAt(0)) {
                          case "y":
                                if (l != 2) {
                                        result.setFullYear(v);
                                        expected.year = v;
                                } else {
                                        if (v < 100) {
                                                v = Number(v);
                                                var year = "" + new Date().getFullYear();
                                                var century = year.substring(0, 2) * 100;
                                                var yearPart = Number(year.substring(2, 4));
                                                var cutoff = Math.min(yearPart + 20, 99);
                                                var num = (v < cutoff) ? century + v : century - 100 + v;
                                                result.setFullYear(num);
                                                expected.year = num;
                                        } else {
                                                if (options.strict) {
                                                        return null;
                                                }
                                                result.setFullYear(v);
                                                expected.year = v;
                                        }
                                }
                                break;
                          case "M":
                                if (l > 2) {
                                        if (!options.strict) {
                                                v = v.replace(/\./g, "");
                                                v = v.toLowerCase();
                                        }
                                        var months = info["months-format-" + widthList[l - 3]].concat();
                                        for (var j = 0; j < months.length; j++) {
                                                if (!options.strict) {
                                                        months[j] = months[j].toLowerCase();
                                                }
                                                if (v == months[j]) {
                                                        result.setMonth(j);
                                                        expected.month = j;
                                                        break;
                                                }
                                        }
                                        if (j == months.length) {
                                                dojo.debug("dojo.date.parse: Could not parse month name: '" + v + "'.");
                                                return null;
                                        }
                                } else {
                                        result.setMonth(v - 1);
                                        expected.month = v - 1;
                                }
                                break;
                          case "E":
                          case "e":
                                if (!options.strict) {
                                        v = v.toLowerCase();
                                }
                                var days = info["days-format-" + widthList[l - 3]].concat();
                                for (var j = 0; j < days.length; j++) {
                                        if (!options.strict) {
                                                days[j] = days[j].toLowerCase();
                                        }
                                        if (v == days[j]) {
                                                break;
                                        }
                                }
                                if (j == days.length) {
                                        dojo.debug("dojo.date.parse: Could not parse weekday name: '" + v + "'.");
                                        return null;
                                }
                                break;
                          case "d":
                                result.setDate(v);
                                expected.date = v;
                                break;
                          case "a":
                                var am = options.am || info.am;
                                var pm = options.pm || info.pm;
                                if (!options.strict) {
                                        v = v.replace(/\./g, "").toLowerCase();
                                        am = am.replace(/\./g, "").toLowerCase();
                                        pm = pm.replace(/\./g, "").toLowerCase();
                                }
                                if (options.strict && v != am && v != pm) {
                                        dojo.debug("dojo.date.parse: Could not parse am/pm part.");
                                        return null;
                                }
                                var hours = result.getHours();
                                if (v == pm && hours < 12) {
                                        result.setHours(hours + 12);
                                } else {
                                        if (v == am && hours == 12) {
                                                result.setHours(0);
                                        }
                                }
                                break;
                          case "K":
                                if (v == 24) {
                                        v = 0;
                                }
                          case "h":
                          case "H":
                          case "k":
                                if (v > 23) {
                                        dojo.debug("dojo.date.parse: Illegal hours value");
                                        return null;
                                }
                                result.setHours(v);
                                break;
                          case "m":
                                result.setMinutes(v);
                                break;
                          case "s":
                                result.setSeconds(v);
                                break;
                          case "S":
                                result.setMilliseconds(v);
                                break;
                          default:
                                dojo.unimplemented("dojo.date.parse: unsupported pattern char=" + grp.charAt(0));
                        }
                }
                if (expected.year && result.getFullYear() != expected.year) {
                        dojo.debug("Parsed year: '" + result.getFullYear() + "' did not match input year: '" + expected.year + "'.");
                        return null;
                }
                if (expected.month && result.getMonth() != expected.month) {
                        dojo.debug("Parsed month: '" + result.getMonth() + "' did not match input month: '" + expected.month + "'.");
                        return null;
                }
                if (expected.date && result.getDate() != expected.date) {
                        dojo.debug("Parsed day of month: '" + result.getDate() + "' did not match input day of month: '" + expected.date + "'.");
                        return null;
                }
                return result;
        };
        function _processPattern(pattern, applyPattern, applyLiteral, applyAll) {
                var identity = function (x) {
                        return x;
                };
                applyPattern = applyPattern || identity;
                applyLiteral = applyLiteral || identity;
                applyAll = applyAll || identity;
                var chunks = pattern.match(/(''|[^'])+/g);
                var literal = false;
                for (var i = 0; i < chunks.length; i++) {
                        if (!chunks[i]) {
                                chunks[i] = "";
                        } else {
                                chunks[i] = (literal ? applyLiteral : applyPattern)(chunks[i]);
                                literal = !literal;
                        }
                }
                return applyAll(chunks.join(""));
        }
        function _buildDateTimeRE(groups, info, options, pattern) {
                return pattern.replace(/([a-z])\1*/ig, function (match) {
                        var s;
                        var c = match.charAt(0);
                        var l = match.length;
                        switch (c) {
                          case "y":
                                s = "\\d" + ((l == 2) ? "{2,4}" : "+");
                                break;
                          case "M":
                                s = (l > 2) ? "\\S+" : "\\d{1,2}";
                                break;
                          case "d":
                                s = "\\d{1,2}";
                                break;
                          case "E":
                                s = "\\S+";
                                break;
                          case "h":
                          case "H":
                          case "K":
                          case "k":
                                s = "\\d{1,2}";
                                break;
                          case "m":
                          case "s":
                                s = "[0-5]\\d";
                                break;
                          case "S":
                                s = "\\d{1,3}";
                                break;
                          case "a":
                                var am = options.am || info.am || "AM";
                                var pm = options.pm || info.pm || "PM";
                                if (options.strict) {
                                        s = am + "|" + pm;
                                } else {
                                        s = am;
                                        s += (am != am.toLowerCase()) ? "|" + am.toLowerCase() : "";
                                        s += "|";
                                        s += (pm != pm.toLowerCase()) ? pm + "|" + pm.toLowerCase() : pm;
                                }
                                break;
                          default:
                                dojo.unimplemented("parse of date format, pattern=" + pattern);
                        }
                        if (groups) {
                                groups.push(match);
                        }
                        return "\\s*(" + s + ")\\s*";
                });
        }
})();
dojo.date.strftime = function (dateObject, format, locale) {
        var padChar = null;
        function _(s, n) {
                return dojo.string.pad(s, n || 2, padChar || "0");
        }
        var info = dojo.date._getGregorianBundle(locale);
        function $(property) {
                switch (property) {
                  case "a":
                        return dojo.date.getDayShortName(dateObject, locale);
                  case "A":
                        return dojo.date.getDayName(dateObject, locale);
                  case "b":
                  case "h":
                        return dojo.date.getMonthShortName(dateObject, locale);
                  case "B":
                        return dojo.date.getMonthName(dateObject, locale);
                  case "c":
                        return dojo.date.format(dateObject, {locale:locale});
                  case "C":
                        return _(Math.floor(dateObject.getFullYear() / 100));
                  case "d":
                        return _(dateObject.getDate());
                  case "D":
                        return $("m") + "/" + $("d") + "/" + $("y");
                  case "e":
                        if (padChar == null) {
                                padChar = " ";
                        }
                        return _(dateObject.getDate());
                  case "f":
                        if (padChar == null) {
                                padChar = " ";
                        }
                        return _(dateObject.getMonth() + 1);
                  case "g":
                        break;
                  case "G":
                        dojo.unimplemented("unimplemented modifier 'G'");
                        break;
                  case "F":
                        return $("Y") + "-" + $("m") + "-" + $("d");
                  case "H":
                        return _(dateObject.getHours());
                  case "I":
                        return _(dateObject.getHours() % 12 || 12);
                  case "j":
                        return _(dojo.date.getDayOfYear(dateObject), 3);
                  case "k":
                        if (padChar == null) {
                                padChar = " ";
                        }
                        return _(dateObject.getHours());
                  case "l":
                        if (padChar == null) {
                                padChar = " ";
                        }
                        return _(dateObject.getHours() % 12 || 12);
                  case "m":
                        return _(dateObject.getMonth() + 1);
                  case "M":
                        return _(dateObject.getMinutes());
                  case "n":
                        return "\n";
                  case "p":
                        return info[dateObject.getHours() < 12 ? "am" : "pm"];
                  case "r":
                        return $("I") + ":" + $("M") + ":" + $("S") + " " + $("p");
                  case "R":
                        return $("H") + ":" + $("M");
                  case "S":
                        return _(dateObject.getSeconds());
                  case "t":
                        return "\t";
                  case "T":
                        return $("H") + ":" + $("M") + ":" + $("S");
                  case "u":
                        return String(dateObject.getDay() || 7);
                  case "U":
                        return _(dojo.date.getWeekOfYear(dateObject));
                  case "V":
                        return _(dojo.date.getIsoWeekOfYear(dateObject));
                  case "W":
                        return _(dojo.date.getWeekOfYear(dateObject, 1));
                  case "w":
                        return String(dateObject.getDay());
                  case "x":
                        return dojo.date.format(dateObject, {selector:"dateOnly", locale:locale});
                  case "X":
                        return dojo.date.format(dateObject, {selector:"timeOnly", locale:locale});
                  case "y":
                        return _(dateObject.getFullYear() % 100);
                  case "Y":
                        return String(dateObject.getFullYear());
                  case "z":
                        var timezoneOffset = dateObject.getTimezoneOffset();
                        return (timezoneOffset > 0 ? "-" : "+") + _(Math.floor(Math.abs(timezoneOffset) / 60)) + ":" + _(Math.abs(timezoneOffset) % 60);
                  case "Z":
                        return dojo.date.getTimezoneName(dateObject);
                  case "%":
                        return "%";
                }
        }
        var string = "";
        var i = 0;
        var index = 0;
        var switchCase = null;
        while ((index = format.indexOf("%", i)) != -1) {
                string += format.substring(i, index++);
                switch (format.charAt(index++)) {
                  case "_":
                        padChar = " ";
                        break;
                  case "-":
                        padChar = "";
                        break;
                  case "0":
                        padChar = "0";
                        break;
                  case "^":
                        switchCase = "upper";
                        break;
                  case "*":
                        switchCase = "lower";
                        break;
                  case "#":
                        switchCase = "swap";
                        break;
                  default:
                        padChar = null;
                        index--;
                        break;
                }
                var property = $(format.charAt(index++));
                switch (switchCase) {
                  case "upper":
                        property = property.toUpperCase();
                        break;
                  case "lower":
                        property = property.toLowerCase();
                        break;
                  case "swap":
                        var compareString = property.toLowerCase();
                        var swapString = "";
                        var j = 0;
                        var ch = "";
                        while (j < property.length) {
                                ch = property.charAt(j);
                                swapString += (ch == compareString.charAt(j)) ? ch.toUpperCase() : ch.toLowerCase();
                                j++;
                        }
                        property = swapString;
                        break;
                  default:
                        break;
                }
                switchCase = null;
                string += property;
                i = index;
        }
        string += format.substring(i);
        return string;
};
(function () {
        var _customFormats = [];
        dojo.date.addCustomFormats = function (packageName, bundleName) {
                _customFormats.push({pkg:packageName, name:bundleName});
        };
        dojo.date._getGregorianBundle = function (locale) {
                var gregorian = {};
                dojo.lang.forEach(_customFormats, function (desc) {
                        var bundle = dojo.i18n.getLocalization(desc.pkg, desc.name, locale);
                        gregorian = dojo.lang.mixin(gregorian, bundle);
                }, this);
                return gregorian;
        };
})();
dojo.date.addCustomFormats("dojo.i18n.calendar", "gregorian");
dojo.date.addCustomFormats("dojo.i18n.calendar", "gregorianExtras");
dojo.date.getNames = function (item, type, use, locale) {
        var label;
        var lookup = dojo.date._getGregorianBundle(locale);
        var props = [item, use, type];
        if (use == "standAlone") {
                label = lookup[props.join("-")];
        }
        props[1] = "format";
        return (label || lookup[props.join("-")]).concat();
};
dojo.date.getDayName = function (dateObject, locale) {
        return dojo.date.getNames("days", "wide", "format", locale)[dateObject.getDay()];
};
dojo.date.getDayShortName = function (dateObject, locale) {
        return dojo.date.getNames("days", "abbr", "format", locale)[dateObject.getDay()];
};
dojo.date.getMonthName = function (dateObject, locale) {
        return dojo.date.getNames("months", "wide", "format", locale)[dateObject.getMonth()];
};
dojo.date.getMonthShortName = function (dateObject, locale) {
        return dojo.date.getNames("months", "abbr", "format", locale)[dateObject.getMonth()];
};
dojo.date.toRelativeString = function (dateObject) {
        var now = new Date();
        var diff = (now - dateObject) / 1000;
        var end = " ago";
        var future = false;
        if (diff < 0) {
                future = true;
                end = " from now";
                diff = -diff;
        }
        if (diff < 60) {
                diff = Math.round(diff);
                return diff + " second" + (diff == 1 ? "" : "s") + end;
        }
        if (diff < 60 * 60) {
                diff = Math.round(diff / 60);
                return diff + " minute" + (diff == 1 ? "" : "s") + end;
        }
        if (diff < 60 * 60 * 24) {
                diff = Math.round(diff / 3600);
                return diff + " hour" + (diff == 1 ? "" : "s") + end;
        }
        if (diff < 60 * 60 * 24 * 7) {
                diff = Math.round(diff / (3600 * 24));
                if (diff == 1) {
                        return future ? "Tomorrow" : "Yesterday";
                } else {
                        return diff + " days" + end;
                }
        }
        return dojo.date.format(dateObject);
};
dojo.date.toSql = function (dateObject, noTime) {
        return dojo.date.strftime(dateObject, "%F" + !noTime ? " %T" : "");
};
dojo.date.fromSql = function (sqlDate) {
        var parts = sqlDate.split(/[\- :]/g);
        while (parts.length < 6) {
                parts.push(0);
        }
        return new Date(parts[0], (parseInt(parts[1], 10) - 1), parts[2], parts[3], parts[4], parts[5]);
};