source: Dev/trunk/src/client/dojox/dtl/utils/date.js

define([
        "dojo/_base/lang",
        "dojox/date/php",
        "../_base"
], function(lang,ddp,dd){

        var date = lang.getObject("utils.date", true, dd);
        /*=====
         date = {
                // TODO: summary
         };
         =====*/

        date.DateFormat = ddp.DateFormat;
        lang.extend(date.DateFormat, ddp.DateFormat.prototype, {
                f: function(){
                        // summary:
                        //              Time, in 12-hour hours and minutes, with minutes left off if they're zero.
                        // description:
                        //              Examples: '1', '1:30', '2:05', '2'
                        //              Proprietary extension.
                        return (!this.date.getMinutes()) ? this.g() : this.g() + ":" + this.i();
                },
                N: function(){
                        // summary:
                        //              Month abbreviation in Associated Press style. Proprietary extension.
                        return date._months_ap[this.date.getMonth()];
                },
                P: function(){
                        // summary:
                        //              Time, in 12-hour hours, minutes and 'a.m.'/'p.m.', with minutes left off
                        //              if they're zero and the strings 'midnight' and 'noon' if appropriate.
                        // description:
                        //              Examples: '1 a.m.', '1:30 p.m.', 'midnight', 'noon', '12:30 p.m.'
                        //              Proprietary extension.
                        if(!this.date.getMinutes() && !this.date.getHours()){
                                return 'midnight';
                        }
                        if(!this.date.getMinutes() && this.date.getHours() == 12){
                                return 'noon';
                        }
                        return this.f() + " " + this.a();
                }
        });

        lang.mixin(dojox.dtl.utils.date, {
                format: function(/*Date*/ date, /*String*/ format){
                        var df = new dojox.dtl.utils.date.DateFormat(format);
                        return df.format(date);
                },
                timesince: function(d, now){
                        // summary:
                        //              Takes two datetime objects and returns the time between then and now
                        //              as a nicely formatted string, e.g "10 minutes"
                        // description:
                        //              Adapted from http://blog.natbat.co.uk/archive/2003/Jun/14/time_since
                        if(!(d instanceof Date)){
                                d = new Date(d.year, d.month, d.day);
                        }
                        if(!now){
                                now = new Date();
                        }

                        var delta = Math.abs(now.getTime() - d.getTime());
                        for(var i = 0, chunk; chunk = dojox.dtl.utils.date._chunks[i]; i++){
                                var count = Math.floor(delta / chunk[0]);
                                if(count) break;
                        }
                        return count + " " + chunk[1](count);
                },
                _chunks: [
                        [60 * 60 * 24 * 365 * 1000, function(n){ return (n == 1) ? 'year' : 'years'; }],
                        [60 * 60 * 24 * 30 * 1000, function(n){ return (n == 1) ? 'month' : 'months'; }],
                        [60 * 60 * 24 * 7 * 1000, function(n){ return (n == 1) ? 'week' : 'weeks'; }],
                        [60 * 60 * 24 * 1000, function(n){ return (n == 1) ? 'day' : 'days'; }],
                        [60 * 60 * 1000, function(n){ return (n == 1) ? 'hour' : 'hours'; }],
                        [60 * 1000, function(n){ return (n == 1) ? 'minute' : 'minutes'; }]
                ],
                _months_ap: ["Jan.", "Feb.", "March", "April", "May", "June", "July", "Aug.", "Sept.", "Oct.", "Nov.", "Dec."]
        });

        return date;
});