/*jslint browser: true, cap: false, glovar: true, passfail: false, undef: false, white: false */ /*global SONGHAY YAHOO */ /* Bryan Wilhite (rasx@songhaysystem.com) Based on a design by mordred (http://www.codingforums.com) of Frankfurt, Germany. Based on the php date() function (http://www.php.net/manual/en/function.date.php). */ Date.prototype.monthNames = ['January', 'February', 'March', 'April','May', 'June', 'July', 'August','September', 'October', 'November', 'December']; Date.prototype.dayNames = ['Sunday', 'Monday', 'Tuesday', 'Wednesday','Thursday', 'Friday', 'Saturday']; Date.prototype.format = function(vFormatString) { var heap = vFormatString.split(''); var resHeap = []; //new Array(heap.length); var escapeChar = '\\'; var temp; var firstDay; var thisDay; /* You can change escapeChar to something different, but don't use a character that has a formatting meaning, unless you want to disable it's functionality. */ // Go through array and extract identifiers from its fields: for (var i = 0; i < heap.length; i++) { switch(heap[i]) { case escapeChar: resHeap[i] = heap[i+1]; i++; break; case 'a': // 'am' or 'pm'; temp = this.getHours(); resHeap[i] = (temp < 12) ? 'am' : 'pm'; break; case 'A': // 'AM' or 'PM' temp = this.getHours(); resHeap[i] = (temp < 12) ? 'AM' : 'PM'; break; case 'd': // day of the month, 2 digits with leading zeros i.e. '01' to '31' temp = String(this.getDate()); resHeap[i] = (temp.length > 1) ? temp : '0' + temp; break; case 'D': // day of the week, textual, 3 letters i.e. 'Fri' temp = this.dayNames[this.getDay()]; resHeap[i] = temp.substring(0, 3); break; case 'F': // month, textual, long i.e. 'January' resHeap[i] = this.monthNames[this.getMonth()]; break; case 'g': // hour, 12-hour format without leading zeros i.e. '1' to '12' temp = this.getHours(); resHeap[i] = (temp <= 12) ? temp : (temp - 12); break; case 'G': // hour, 24-hour format without leading zeros i.e. '0' to '23' resHeap[i] = String(this.getHours()); break; case 'h': // hour, 12-hour format i.e. '01' to '12' temp = String(this.getHours()); temp = (temp <= 12) ? temp : (temp - 12); resHeap[i] = (temp.length > 1) ? temp : '0' + temp; break; case 'H': // hour, 24-hour format i.e. '00' to '23' temp = String(this.getHours()); resHeap[i] = (temp.length > 1) ? temp : '0' + temp; break; case 'i': // minutes i.e. '00' to '59' temp = String(this.getMinutes()); resHeap[i] = (temp.length > 1) ? temp : '0' + temp; break; case 'I': // '1' if Daylight Savings Time, '0' otherwise. Works only on the northern hemisphere firstDay = new Date(this.getFullYear(), 0, 1); resHeap[i] = (this.getTimezoneOffset() != firstDay.getTimezoneOffset()) ? (1) : (0); break; case 'J': // day of the month without leading zeros i.e. '1' to '31' resHeap[i] = this.getDate(); break; case 'l': // day of the week, textual, long i.e. 'Friday' resHeap[i] = this.dayNames[this.getDay()]; break; case 'L': // boolean for whether it is a leap year i.e. '0' or '1' resHeap[i] = (this.getFullYear() % 4) ? false : true; break; case 'm': // month i.e. '01' to '12' temp = String(this.getMonth() + 1); resHeap[i] = (temp.length > 1) ? temp : '0' + temp; break; case 'M': // month, textual, 3 letters i.e. 'Jan' resHeap[i] = this.monthNames[this.getMonth()]; break; case 'n': // month without leading zeros i.e. '1' to '12' resHeap[i] = this.getMonth() + 1; break; case 'O': // Difference to Greenwich time in hours i.e. '+0200' var minZone = this.getTimezoneOffset(); var mins = minZone % 60; var hour = String(((minZone - mins) / 60) * -1); if (hour.charAt(0) != '-') { hour = '+' + hour; } hour = (hour.length == 3) ? (hour) : (hour.replace(/([+\-])(\d)/, '$1' + 0 + '$2')); resHeap[i] = hour + mins + '0'; break; case 'r': // RFC 822 formatted date e.g. 'Thu, 21 Dec 2000 16:01:07 +0200' var dayName = this.dayNames[this.getDay()].substr(0, 3); var monthName = this.monthNames[this.getMonth()].substr(0, 3); resHeap[i] = dayName + ', ' + this.getDate() + ' ' + monthName + this.format(' Y H:i:s O'); break; case 's': // seconds i.e. '00' to '59' temp = String(this.getSeconds()); resHeap[i] = (temp.length > 1) ? temp : '0' + temp; break; case 'S': // English ordinal suffix for the day of the month, 2 characters i.e. 'st', 'nd', 'rd' or 'th' temp = this.getDate(); var suffixes = ['st', 'nd', 'rd']; var suffix = ''; if (temp >= 11 && temp <= 13) { resHeap[i] = 'th'; } else { resHeap[i] = (suffix = suffixes[String(temp).substr(-1) - 1]) ? (suffix) : ('th'); } break; case 't': // number of days in the given month i.e. '28' to '31' resHeap[i] = this.getDay(); break; /* T: Not implemented */ case 'U': /* seconds since the Unix Epoch (January 1 1970 00:00:00 GMT) remember that this does not return milisecs! */ resHeap[i] = Math.floor(this.getTime() / 1000); break; case 'w': // day of the week, numeric, i.e. '0' (Sunday) to '6' (Saturday) resHeap[i] = this.getDay(); break; case 'W': // ISO-8601 week number of year, weeks starting on Monday var startOfYear = new Date(this.getFullYear(), 0, 1, 0, 0, 0, 0); firstDay = startOfYear.getDay() - 1; if (firstDay < 0) { firstDay = 6; } var firstMonday = Date.UTC(this.getFullYear(), 0, 8 - firstDay); thisDay = Date.UTC(this.getFullYear(), this.getMonth(), this.getDate()); resHeap[i] = Math.floor((thisDay - firstMonday) / (1000 * 60 * 60 * 24 * 7)) + 2; break; case 'y': // year, 2 digits i.e. '99' resHeap[i] = String(this.getFullYear()).substring(2); break; case 'Y': // year, 4 digits i.e. '1999' resHeap[i] = this.getFullYear(); break; case 'z': // day of the year i.e. '0' to '365' firstDay = Date.UTC(this.getFullYear(), 0, 0); thisDay = Date.UTC(this.getFullYear(), this.getMonth(), this.getDate()); resHeap[i] = Math.floor((thisDay - firstDay) / (1000 * 60 * 60 * 24)); break; case 'Z': // timezone offset in seconds (i.e. '-43200' to '43200'). resHeap[i] = this.getTimezoneOffset() * 60; break; default: resHeap[i] = heap[i]; } } // return joined array return resHeap.join(''); };