// This file is part of the jQuery formatCurrency Plugin.
//
// The jQuery formatCurrency Plugin is free software: you can redistribute it
// and/or modify it under the terms of the GNU General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. // The jQuery formatCurrency Plugin is distributed in the hope that it will
// be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along with
// the jQuery formatCurrency Plugin. If not, see <http://www.gnu.org/licenses/>.
// wiki http://code.google.com/p/jquery-formatcurrency/wiki/Usage (function($) { $.formatCurrency = {}; $.formatCurrency.regions = []; // default Region is en
$.formatCurrency.regions[''] = {
symbol: '',
positiveFormat: '%s%n',
negativeFormat: '(%s%n)',
decimalSymbol: '.',
digitGroupSymbol: ',',
groupDigits: true
}; $.fn.formatCurrency = function(destination, settings) { if (arguments.length == 1 && typeof destination !== "string") {
settings = destination;
destination = false;
} // initialize defaults
var defaults = {
name: "formatCurrency",
colorize: false,
region: '',
global: true,
roundToDecimalPlace: 2, // roundToDecimalPlace: -1; for no rounding; 0 to round to the dollar; 1 for one digit cents; 2 for two digit cents; 3 for three digit cents; ...
eventOnDecimalsEntered: false
};
// initialize default region
defaults = $.extend(defaults, $.formatCurrency.regions['']);
// override defaults with settings passed in
settings = $.extend(defaults, settings); // check for region setting
if (settings.region.length > 0) {
settings = $.extend(settings, getRegionOrCulture(settings.region));
}
settings.regex = generateRegex(settings); return this.each(function() {
$this = $(this); // get number
var num = '0';
num = $this[$this.is('input, select, textarea') ? 'val' : 'html'](); //identify '(123)' as a negative number
if (num.search('\\(') >= 0) {
num = '-' + num;
} if (num === '' || (num === '-' && settings.roundToDecimalPlace === -1)) {
return;
} // if the number is valid use it, otherwise clean it
if (isNaN(num)) {
// clean number
num = num.replace(settings.regex, ''); if (num === '' || (num === '-' && settings.roundToDecimalPlace === -1)) {
return;
} if (settings.decimalSymbol != '.') {
num = num.replace(settings.decimalSymbol, '.'); // reset to US decimal for arithmetic
}
if (isNaN(num)) {
num = '0';
}
} // evalutate number input
var numParts = String(num).split('.');
var isPositive = (num == Math.abs(num));
var hasDecimals = (numParts.length > 1);
var decimals = (hasDecimals ? numParts[1].toString() : '0');
var originalDecimals = decimals; // format number
num = Math.abs(numParts[0]);
num = isNaN(num) ? 0 : num;
if (settings.roundToDecimalPlace >= 0) {
decimals = parseFloat('1.' + decimals); // prepend "0."; (IE does NOT round 0.50.toFixed(0) up, but (1+0.50).toFixed(0)-1
decimals = decimals.toFixed(settings.roundToDecimalPlace); // round
if (decimals.substring(0, 1) == '2') {
num = Number(num) + 1;
}
decimals = decimals.substring(2); // remove "0."
}
num = String(num); if (settings.groupDigits) {
for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++) {
num = num.substring(0, num.length - (4 * i + 3)) + settings.digitGroupSymbol + num.substring(num.length - (4 * i + 3));
}
} if ((hasDecimals && settings.roundToDecimalPlace == -1) || settings.roundToDecimalPlace > 0) {
num += settings.decimalSymbol + decimals;
} // format symbol/negative
var format = isPositive ? settings.positiveFormat : settings.negativeFormat;
var money = format.replace(/%s/g, settings.symbol);
money = money.replace(/%n/g, num); // setup destination
var $destination = $([]);
if (!destination) {
$destination = $this;
} else {
$destination = $(destination);
}
// set destination
$destination[$destination.is('input, select, textarea') ? 'val' : 'html'](money); if (
hasDecimals &&
settings.eventOnDecimalsEntered &&
originalDecimals.length > settings.roundToDecimalPlace
) {
$destination.trigger('decimalsEntered', originalDecimals);
} // colorize
if (settings.colorize) {
$destination.css('color', isPositive ? 'black' : 'red');
}
});
}; // Remove all non numbers from text
$.fn.toNumber = function(settings) {
var defaults = $.extend({
name: "toNumber",
region: '',
global: true
}, $.formatCurrency.regions['']); settings = jQuery.extend(defaults, settings);
if (settings.region.length > 0) {
settings = $.extend(settings, getRegionOrCulture(settings.region));
}
settings.regex = generateRegex(settings); return this.each(function() {
var method = $(this).is('input, select, textarea') ? 'val' : 'html';
$(this)[method]($(this)[method]().replace('(', '(-').replace(settings.regex, ''));
});
}; // returns the value from the first element as a number
$.fn.asNumber = function(settings) {
var defaults = $.extend({
name: "asNumber",
region: '',
parse: true,
parseType: 'Float',
global: true
}, $.formatCurrency.regions['']);
settings = jQuery.extend(defaults, settings);
if (settings.region.length > 0) {
settings = $.extend(settings, getRegionOrCulture(settings.region));
}
settings.regex = generateRegex(settings);
settings.parseType = validateParseType(settings.parseType); var method = $(this).is('input, select, textarea') ? 'val' : 'html';
var num = $(this)[method]();
num = num ? num : "";
num = num.replace('(', '(-');
num = num.replace(settings.regex, '');
if (!settings.parse) {
return num;
} if (num.length == 0) {
num = '0';
} if (settings.decimalSymbol != '.') {
num = num.replace(settings.decimalSymbol, '.'); // reset to US decimal for arthmetic
} return window['parse' + settings.parseType](num);
}; function getRegionOrCulture(region) {
var regionInfo = $.formatCurrency.regions[region];
if (regionInfo) {
return regionInfo;
}
else {
if (/(\w+)-(\w+)/g.test(region)) {
var culture = region.replace(/(\w+)-(\w+)/g, "$1");
return $.formatCurrency.regions[culture];
}
}
// fallback to extend(null) (i.e. nothing)
return null;
} function validateParseType(parseType) {
switch (parseType.toLowerCase()) {
case 'int':
return 'Int';
case 'float':
return 'Float';
default:
throw 'invalid parseType';
}
} function generateRegex(settings) {
if (settings.symbol === '') {
return new RegExp("[^\\d" + settings.decimalSymbol + "-]", "g");
}
else {
var symbol = settings.symbol.replace('$', '\\$').replace('.', '\\.');
return new RegExp(symbol + "|[^\\d" + settings.decimalSymbol + "-]", "g");
}
} })(jQuery);
1.引入jquery和插件(jquery省略)
<script src="jquery.formatCurrency-1.4.0.js" type="text/javascript" ></script>
2.使用插件API方法
// 如将页面所有表格的金额单元格格式化显示
$('.label').formatCurrency(); //
$('.ageInput').toNumber();