305 lines
8.7 KiB
JavaScript
305 lines
8.7 KiB
JavaScript
/***
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MochiKit.Format 1.4
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See <http://mochikit.com/> for documentation, downloads, license, etc.
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(c) 2005 Bob Ippolito. All rights Reserved.
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***/
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if (typeof(dojo) != 'undefined') {
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dojo.provide('MochiKit.Format');
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}
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if (typeof(MochiKit) == 'undefined') {
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MochiKit = {};
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}
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if (typeof(MochiKit.Format) == 'undefined') {
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MochiKit.Format = {};
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}
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MochiKit.Format.NAME = "MochiKit.Format";
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MochiKit.Format.VERSION = "1.4";
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MochiKit.Format.__repr__ = function () {
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return "[" + this.NAME + " " + this.VERSION + "]";
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};
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MochiKit.Format.toString = function () {
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return this.__repr__();
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};
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MochiKit.Format._numberFormatter = function (placeholder, header, footer, locale, isPercent, precision, leadingZeros, separatorAt, trailingZeros) {
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return function (num) {
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num = parseFloat(num);
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if (typeof(num) == "undefined" || num === null || isNaN(num)) {
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return placeholder;
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}
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var curheader = header;
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var curfooter = footer;
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if (num < 0) {
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num = -num;
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} else {
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curheader = curheader.replace(/-/, "");
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}
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var me = arguments.callee;
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var fmt = MochiKit.Format.formatLocale(locale);
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if (isPercent) {
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num = num * 100.0;
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curfooter = fmt.percent + curfooter;
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}
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num = MochiKit.Format.roundToFixed(num, precision);
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var parts = num.split(/\./);
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var whole = parts[0];
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var frac = (parts.length == 1) ? "" : parts[1];
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var res = "";
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while (whole.length < leadingZeros) {
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whole = "0" + whole;
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}
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if (separatorAt) {
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while (whole.length > separatorAt) {
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var i = whole.length - separatorAt;
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//res = res + fmt.separator + whole.substring(i, whole.length);
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res = fmt.separator + whole.substring(i, whole.length) + res;
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whole = whole.substring(0, i);
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}
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}
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res = whole + res;
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if (precision > 0) {
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while (frac.length < trailingZeros) {
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frac = frac + "0";
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}
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res = res + fmt.decimal + frac;
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}
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return curheader + res + curfooter;
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};
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};
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/** @id MochiKit.Format.numberFormatter */
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MochiKit.Format.numberFormatter = function (pattern, placeholder/* = "" */, locale/* = "default" */) {
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// http://java.sun.com/docs/books/tutorial/i18n/format/numberpattern.html
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// | 0 | leading or trailing zeros
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// | # | just the number
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// | , | separator
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// | . | decimal separator
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// | % | Multiply by 100 and format as percent
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if (typeof(placeholder) == "undefined") {
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placeholder = "";
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}
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var match = pattern.match(/((?:[0#]+,)?[0#]+)(?:\.([0#]+))?(%)?/);
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if (!match) {
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throw TypeError("Invalid pattern");
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}
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var header = pattern.substr(0, match.index);
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var footer = pattern.substr(match.index + match[0].length);
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if (header.search(/-/) == -1) {
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header = header + "-";
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}
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var whole = match[1];
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var frac = (typeof(match[2]) == "string" && match[2] != "") ? match[2] : "";
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var isPercent = (typeof(match[3]) == "string" && match[3] != "");
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var tmp = whole.split(/,/);
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var separatorAt;
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if (typeof(locale) == "undefined") {
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locale = "default";
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}
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if (tmp.length == 1) {
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separatorAt = null;
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} else {
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separatorAt = tmp[1].length;
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}
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var leadingZeros = whole.length - whole.replace(/0/g, "").length;
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var trailingZeros = frac.length - frac.replace(/0/g, "").length;
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var precision = frac.length;
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var rval = MochiKit.Format._numberFormatter(
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placeholder, header, footer, locale, isPercent, precision,
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leadingZeros, separatorAt, trailingZeros
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);
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var m = MochiKit.Base;
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if (m) {
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var fn = arguments.callee;
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var args = m.concat(arguments);
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rval.repr = function () {
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return [
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self.NAME,
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"(",
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map(m.repr, args).join(", "),
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")"
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].join("");
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};
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}
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return rval;
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};
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/** @id MochiKit.Format.formatLocale */
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MochiKit.Format.formatLocale = function (locale) {
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if (typeof(locale) == "undefined" || locale === null) {
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locale = "default";
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}
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if (typeof(locale) == "string") {
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var rval = MochiKit.Format.LOCALE[locale];
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if (typeof(rval) == "string") {
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rval = arguments.callee(rval);
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MochiKit.Format.LOCALE[locale] = rval;
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}
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return rval;
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} else {
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return locale;
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}
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};
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/** @id MochiKit.Format.twoDigitAverage */
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MochiKit.Format.twoDigitAverage = function (numerator, denominator) {
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if (denominator) {
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var res = numerator / denominator;
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if (!isNaN(res)) {
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return MochiKit.Format.twoDigitFloat(numerator / denominator);
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}
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}
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return "0";
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};
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/** @id MochiKit.Format.twoDigitFloat */
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MochiKit.Format.twoDigitFloat = function (someFloat) {
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var sign = (someFloat < 0 ? '-' : '');
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var s = Math.floor(Math.abs(someFloat) * 100).toString();
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if (s == '0') {
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return s;
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}
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if (s.length < 3) {
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while (s.charAt(s.length - 1) == '0') {
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s = s.substring(0, s.length - 1);
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}
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return sign + '0.' + s;
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}
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var head = sign + s.substring(0, s.length - 2);
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var tail = s.substring(s.length - 2, s.length);
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if (tail == '00') {
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return head;
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} else if (tail.charAt(1) == '0') {
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return head + '.' + tail.charAt(0);
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} else {
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return head + '.' + tail;
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}
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};
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/** @id MochiKit.Format.lstrip */
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MochiKit.Format.lstrip = function (str, /* optional */chars) {
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str = str + "";
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if (typeof(str) != "string") {
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return null;
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}
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if (!chars) {
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return str.replace(/^\s+/, "");
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} else {
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return str.replace(new RegExp("^[" + chars + "]+"), "");
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}
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};
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/** @id MochiKit.Format.rstrip */
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MochiKit.Format.rstrip = function (str, /* optional */chars) {
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str = str + "";
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if (typeof(str) != "string") {
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return null;
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}
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if (!chars) {
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return str.replace(/\s+$/, "");
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} else {
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return str.replace(new RegExp("[" + chars + "]+$"), "");
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}
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};
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/** @id MochiKit.Format.strip */
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MochiKit.Format.strip = function (str, /* optional */chars) {
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var self = MochiKit.Format;
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return self.rstrip(self.lstrip(str, chars), chars);
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};
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/** @id MochiKit.Format.truncToFixed */
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MochiKit.Format.truncToFixed = function (aNumber, precision) {
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aNumber = Math.floor(aNumber * Math.pow(10, precision));
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var res = (aNumber * Math.pow(10, -precision)).toFixed(precision);
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if (res.charAt(0) == ".") {
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res = "0" + res;
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}
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return res;
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};
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/** @id MochiKit.Format.roundToFixed */
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MochiKit.Format.roundToFixed = function (aNumber, precision) {
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return MochiKit.Format.truncToFixed(
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aNumber + 0.5 * Math.pow(10, -precision),
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precision
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);
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};
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/** @id MochiKit.Format.percentFormat */
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MochiKit.Format.percentFormat = function (someFloat) {
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return MochiKit.Format.twoDigitFloat(100 * someFloat) + '%';
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};
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MochiKit.Format.EXPORT = [
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"truncToFixed",
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"roundToFixed",
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"numberFormatter",
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"formatLocale",
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"twoDigitAverage",
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"twoDigitFloat",
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"percentFormat",
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"lstrip",
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"rstrip",
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"strip"
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];
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MochiKit.Format.LOCALE = {
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en_US: {separator: ",", decimal: ".", percent: "%"},
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de_DE: {separator: ".", decimal: ",", percent: "%"},
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fr_FR: {separator: " ", decimal: ",", percent: "%"},
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"default": "en_US"
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};
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MochiKit.Format.EXPORT_OK = [];
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MochiKit.Format.EXPORT_TAGS = {
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':all': MochiKit.Format.EXPORT,
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':common': MochiKit.Format.EXPORT
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};
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MochiKit.Format.__new__ = function () {
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// MochiKit.Base.nameFunctions(this);
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var base = this.NAME + ".";
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var k, v, o;
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for (k in this.LOCALE) {
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o = this.LOCALE[k];
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if (typeof(o) == "object") {
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o.repr = function () { return this.NAME; };
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o.NAME = base + "LOCALE." + k;
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}
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}
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for (k in this) {
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o = this[k];
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if (typeof(o) == 'function' && typeof(o.NAME) == 'undefined') {
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try {
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o.NAME = base + k;
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} catch (e) {
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// pass
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}
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}
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}
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};
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MochiKit.Format.__new__();
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if (typeof(MochiKit.Base) != "undefined") {
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MochiKit.Base._exportSymbols(this, MochiKit.Format);
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} else {
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(function (globals, module) {
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if ((typeof(JSAN) == 'undefined' && typeof(dojo) == 'undefined')
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|| (MochiKit.__export__ === false)) {
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var all = module.EXPORT_TAGS[":all"];
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for (var i = 0; i < all.length; i++) {
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globals[all[i]] = module[all[i]];
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}
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}
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})(this, MochiKit.Format);
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}
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