michael@0: /***
michael@0: 
michael@0: MochiKit.Format 1.4.2
michael@0: 
michael@0: See <http://mochikit.com/> for documentation, downloads, license, etc.
michael@0: 
michael@0: (c) 2005 Bob Ippolito.  All rights Reserved.
michael@0: 
michael@0: ***/
michael@0: 
michael@0: MochiKit.Base._deps('Format', ['Base']);
michael@0: 
michael@0: MochiKit.Format.NAME = "MochiKit.Format";
michael@0: MochiKit.Format.VERSION = "1.4.2";
michael@0: MochiKit.Format.__repr__ = function () {
michael@0:     return "[" + this.NAME + " " + this.VERSION + "]";
michael@0: };
michael@0: MochiKit.Format.toString = function () {
michael@0:     return this.__repr__();
michael@0: };
michael@0: 
michael@0: MochiKit.Format._numberFormatter = function (placeholder, header, footer, locale, isPercent, precision, leadingZeros, separatorAt, trailingZeros) {
michael@0:     return function (num) {
michael@0:         num = parseFloat(num);
michael@0:         if (typeof(num) == "undefined" || num === null || isNaN(num)) {
michael@0:             return placeholder;
michael@0:         }
michael@0:         var curheader = header;
michael@0:         var curfooter = footer;
michael@0:         if (num < 0) {
michael@0:             num = -num;
michael@0:         } else {
michael@0:             curheader = curheader.replace(/-/, "");
michael@0:         }
michael@0:         var me = arguments.callee;
michael@0:         var fmt = MochiKit.Format.formatLocale(locale);
michael@0:         if (isPercent) {
michael@0:             num = num * 100.0;
michael@0:             curfooter = fmt.percent + curfooter;
michael@0:         }
michael@0:         num = MochiKit.Format.roundToFixed(num, precision);
michael@0:         var parts = num.split(/\./);
michael@0:         var whole = parts[0];
michael@0:         var frac = (parts.length == 1) ? "" : parts[1];
michael@0:         var res = "";
michael@0:         while (whole.length < leadingZeros) {
michael@0:             whole = "0" + whole;
michael@0:         }
michael@0:         if (separatorAt) {
michael@0:             while (whole.length > separatorAt) {
michael@0:                 var i = whole.length - separatorAt;
michael@0:                 //res = res + fmt.separator + whole.substring(i, whole.length);
michael@0:                 res = fmt.separator + whole.substring(i, whole.length) + res;
michael@0:                 whole = whole.substring(0, i);
michael@0:             }
michael@0:         }
michael@0:         res = whole + res;
michael@0:         if (precision > 0) {
michael@0:             while (frac.length < trailingZeros) {
michael@0:                 frac = frac + "0";
michael@0:             }
michael@0:             res = res + fmt.decimal + frac;
michael@0:         }
michael@0:         return curheader + res + curfooter;
michael@0:     };
michael@0: };
michael@0: 
michael@0: /** @id MochiKit.Format.numberFormatter */
michael@0: MochiKit.Format.numberFormatter = function (pattern, placeholder/* = "" */, locale/* = "default" */) {
michael@0:     // http://java.sun.com/docs/books/tutorial/i18n/format/numberpattern.html
michael@0:     // | 0 | leading or trailing zeros
michael@0:     // | # | just the number
michael@0:     // | , | separator
michael@0:     // | . | decimal separator
michael@0:     // | % | Multiply by 100 and format as percent
michael@0:     if (typeof(placeholder) == "undefined") {
michael@0:         placeholder = "";
michael@0:     }
michael@0:     var match = pattern.match(/((?:[0#]+,)?[0#]+)(?:\.([0#]+))?(%)?/);
michael@0:     if (!match) {
michael@0:         throw TypeError("Invalid pattern");
michael@0:     }
michael@0:     var header = pattern.substr(0, match.index);
michael@0:     var footer = pattern.substr(match.index + match[0].length);
michael@0:     if (header.search(/-/) == -1) {
michael@0:         header = header + "-";
michael@0:     }
michael@0:     var whole = match[1];
michael@0:     var frac = (typeof(match[2]) == "string" && match[2] != "") ? match[2] : "";
michael@0:     var isPercent = (typeof(match[3]) == "string" && match[3] != "");
michael@0:     var tmp = whole.split(/,/);
michael@0:     var separatorAt;
michael@0:     if (typeof(locale) == "undefined") {
michael@0:         locale = "default";
michael@0:     }
michael@0:     if (tmp.length == 1) {
michael@0:         separatorAt = null;
michael@0:     } else {
michael@0:         separatorAt = tmp[1].length;
michael@0:     }
michael@0:     var leadingZeros = whole.length - whole.replace(/0/g, "").length;
michael@0:     var trailingZeros = frac.length - frac.replace(/0/g, "").length;
michael@0:     var precision = frac.length;
michael@0:     var rval = MochiKit.Format._numberFormatter(
michael@0:         placeholder, header, footer, locale, isPercent, precision,
michael@0:         leadingZeros, separatorAt, trailingZeros
michael@0:     );
michael@0:     var m = MochiKit.Base;
michael@0:     if (m) {
michael@0:         var fn = arguments.callee;
michael@0:         var args = m.concat(arguments);
michael@0:         rval.repr = function () {
michael@0:             return [
michael@0:                 self.NAME,
michael@0:                 "(",
michael@0:                 map(m.repr, args).join(", "),
michael@0:                 ")"
michael@0:             ].join("");
michael@0:         };
michael@0:     }
michael@0:     return rval;
michael@0: };
michael@0: 
michael@0: /** @id MochiKit.Format.formatLocale */
michael@0: MochiKit.Format.formatLocale = function (locale) {
michael@0:     if (typeof(locale) == "undefined" || locale === null) {
michael@0:         locale = "default";
michael@0:     }
michael@0:     if (typeof(locale) == "string") {
michael@0:         var rval = MochiKit.Format.LOCALE[locale];
michael@0:         if (typeof(rval) == "string") {
michael@0:             rval = arguments.callee(rval);
michael@0:             MochiKit.Format.LOCALE[locale] = rval;
michael@0:         }
michael@0:         return rval;
michael@0:     } else {
michael@0:         return locale;
michael@0:     }
michael@0: };
michael@0: 
michael@0: /** @id MochiKit.Format.twoDigitAverage */
michael@0: MochiKit.Format.twoDigitAverage = function (numerator, denominator) {
michael@0:     if (denominator) {
michael@0:         var res = numerator / denominator;
michael@0:         if (!isNaN(res)) {
michael@0:             return MochiKit.Format.twoDigitFloat(res);
michael@0:         }
michael@0:     }
michael@0:     return "0";
michael@0: };
michael@0: 
michael@0: /** @id MochiKit.Format.twoDigitFloat */
michael@0: MochiKit.Format.twoDigitFloat = function (aNumber) {
michael@0:     var res = roundToFixed(aNumber, 2);
michael@0:     if (res.indexOf(".00") > 0) {
michael@0:         return res.substring(0, res.length - 3);
michael@0:     } else if (res.charAt(res.length - 1) == "0") {
michael@0:         return res.substring(0, res.length - 1);
michael@0:     } else {
michael@0:         return res;
michael@0:     }
michael@0: };
michael@0: 
michael@0: /** @id MochiKit.Format.lstrip */
michael@0: MochiKit.Format.lstrip = function (str, /* optional */chars) {
michael@0:     str = str + "";
michael@0:     if (typeof(str) != "string") {
michael@0:         return null;
michael@0:     }
michael@0:     if (!chars) {
michael@0:         return str.replace(/^\s+/, "");
michael@0:     } else {
michael@0:         return str.replace(new RegExp("^[" + chars + "]+"), "");
michael@0:     }
michael@0: };
michael@0: 
michael@0: /** @id MochiKit.Format.rstrip */
michael@0: MochiKit.Format.rstrip = function (str, /* optional */chars) {
michael@0:     str = str + "";
michael@0:     if (typeof(str) != "string") {
michael@0:         return null;
michael@0:     }
michael@0:     if (!chars) {
michael@0:         return str.replace(/\s+$/, "");
michael@0:     } else {
michael@0:         return str.replace(new RegExp("[" + chars + "]+$"), "");
michael@0:     }
michael@0: };
michael@0: 
michael@0: /** @id MochiKit.Format.strip */
michael@0: MochiKit.Format.strip = function (str, /* optional */chars) {
michael@0:     var self = MochiKit.Format;
michael@0:     return self.rstrip(self.lstrip(str, chars), chars);
michael@0: };
michael@0: 
michael@0: /** @id MochiKit.Format.truncToFixed */
michael@0: MochiKit.Format.truncToFixed = function (aNumber, precision) {
michael@0:     var res = Math.floor(aNumber).toFixed(0);
michael@0:     if (aNumber < 0) {
michael@0:         res = Math.ceil(aNumber).toFixed(0);
michael@0:         if (res.charAt(0) != "-" && precision > 0) {
michael@0:             res = "-" + res;
michael@0:         }
michael@0:     }
michael@0:     if (res.indexOf("e") < 0 && precision > 0) {
michael@0:         var tail = aNumber.toString();
michael@0:         if (tail.indexOf("e") > 0) {
michael@0:             tail = ".";
michael@0:         } else if (tail.indexOf(".") < 0) {
michael@0:             tail = ".";
michael@0:         } else {
michael@0:             tail = tail.substring(tail.indexOf("."));
michael@0:         }
michael@0:         if (tail.length - 1 > precision) {
michael@0:             tail = tail.substring(0, precision + 1);
michael@0:         }
michael@0:         while (tail.length - 1 < precision) {
michael@0:             tail += "0";
michael@0:         }
michael@0:         res += tail;
michael@0:     }
michael@0:     return res;
michael@0: };
michael@0: 
michael@0: /** @id MochiKit.Format.roundToFixed */
michael@0: MochiKit.Format.roundToFixed = function (aNumber, precision) {
michael@0:     var upper = Math.abs(aNumber) + 0.5 * Math.pow(10, -precision);
michael@0:     var res = MochiKit.Format.truncToFixed(upper, precision);
michael@0:     if (aNumber < 0) {
michael@0:         res = "-" + res;
michael@0:     }
michael@0:     return res;
michael@0: };
michael@0: 
michael@0: /** @id MochiKit.Format.percentFormat */
michael@0: MochiKit.Format.percentFormat = function (aNumber) {
michael@0:     return MochiKit.Format.twoDigitFloat(100 * aNumber) + '%';
michael@0: };
michael@0: 
michael@0: MochiKit.Format.EXPORT = [
michael@0:     "truncToFixed",
michael@0:     "roundToFixed",
michael@0:     "numberFormatter",
michael@0:     "formatLocale",
michael@0:     "twoDigitAverage",
michael@0:     "twoDigitFloat",
michael@0:     "percentFormat",
michael@0:     "lstrip",
michael@0:     "rstrip",
michael@0:     "strip"
michael@0: ];
michael@0: 
michael@0: MochiKit.Format.LOCALE = {
michael@0:     en_US: {separator: ",", decimal: ".", percent: "%"},
michael@0:     de_DE: {separator: ".", decimal: ",", percent: "%"},
michael@0:     pt_BR: {separator: ".", decimal: ",", percent: "%"},
michael@0:     fr_FR: {separator: " ", decimal: ",", percent: "%"},
michael@0:     "default": "en_US"
michael@0: };
michael@0: 
michael@0: MochiKit.Format.EXPORT_OK = [];
michael@0: MochiKit.Format.EXPORT_TAGS = {
michael@0:     ':all': MochiKit.Format.EXPORT,
michael@0:     ':common': MochiKit.Format.EXPORT
michael@0: };
michael@0: 
michael@0: MochiKit.Format.__new__ = function () {
michael@0:     // MochiKit.Base.nameFunctions(this);
michael@0:     var base = this.NAME + ".";
michael@0:     var k, v, o;
michael@0:     for (k in this.LOCALE) {
michael@0:         o = this.LOCALE[k];
michael@0:         if (typeof(o) == "object") {
michael@0:             o.repr = function () { return this.NAME; };
michael@0:             o.NAME = base + "LOCALE." + k;
michael@0:         }
michael@0:     }
michael@0:     for (k in this) {
michael@0:         o = this[k];
michael@0:         if (typeof(o) == 'function' && typeof(o.NAME) == 'undefined') {
michael@0:             try {
michael@0:                 o.NAME = base + k;
michael@0:             } catch (e) {
michael@0:                 // pass
michael@0:             }
michael@0:         }
michael@0:     }
michael@0: };
michael@0: 
michael@0: MochiKit.Format.__new__();
michael@0: 
michael@0: if (typeof(MochiKit.Base) != "undefined") {
michael@0:     MochiKit.Base._exportSymbols(this, MochiKit.Format);
michael@0: } else {
michael@0:     (function (globals, module) {
michael@0:         if ((typeof(JSAN) == 'undefined' && typeof(dojo) == 'undefined')
michael@0:             || (MochiKit.__export__ === false)) {
michael@0:             var all = module.EXPORT_TAGS[":all"];
michael@0:             for (var i = 0; i < all.length; i++) {
michael@0:                 globals[all[i]] = module[all[i]];
michael@0:             }
michael@0:         }
michael@0:     })(this, MochiKit.Format);
michael@0: }