438 lines
14 KiB
JavaScript
438 lines
14 KiB
JavaScript
// Copyright 2009 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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* @fileoverview A utility to get better currency format pattern.
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*
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* This module implements a new currency format representation model. It
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* provides 3 currency representation forms: global, portable and local. Local
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* format is the most popular format people use to represent currency in its
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* circulating country without worrying about how it should be distinguished
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* from other currencies. Global format is a formal representation in context
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* of multiple currencies in same page, it is ISO 4217 currency code. Portable
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* format is a compromise between global and local. It looks similar to how
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* people would like to see how their currency is being represented in other
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* media. While at the same time, it should be distinguishable to world's
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* popular currencies (like USD, EUR) and currencies somewhat relevant in the
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* area (like CNY in HK, though native currency is HKD). There is no guarantee
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* of uniqueness.
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*
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*/
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goog.provide('goog.i18n.currency');
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goog.provide('goog.i18n.currency.CurrencyInfo');
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goog.provide('goog.i18n.currency.CurrencyInfoTier2');
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/**
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* The mask of precision field.
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* @private
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*/
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goog.i18n.currency.PRECISION_MASK_ = 0x07;
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/**
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* Whether the currency sign should be positioned after the number.
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* @private
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*/
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goog.i18n.currency.POSITION_FLAG_ = 0x10;
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/**
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* Whether a space should be inserted between the number and currency sign.
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* @private
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*/
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goog.i18n.currency.SPACE_FLAG_ = 0x20;
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/**
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* Whether tier2 was enabled already by calling addTier2Support().
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* @private
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*/
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goog.i18n.currency.tier2Enabled_ = false;
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/**
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* This function will add tier2 currency support. Be default, only tier1
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* (most popular currencies) are supported. If an application really needs
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* to support some of the rarely used currencies, it should call this function
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* before any other functions in this namespace.
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*/
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goog.i18n.currency.addTier2Support = function() {
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// Protection from executing this these again and again.
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if (!goog.i18n.currency.tier2Enabled_) {
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for (var key in goog.i18n.currency.CurrencyInfoTier2) {
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goog.i18n.currency.CurrencyInfo[key] =
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goog.i18n.currency.CurrencyInfoTier2[key];
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}
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goog.i18n.currency.tier2Enabled_ = true;
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}
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};
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/**
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* Global currency pattern always uses ISO-4217 currency code as prefix. Local
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* currency sign is added if it is different from currency code. Each currency
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* is unique in this form. The negative side is that ISO code looks weird in
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* some countries as people normally do not use it. Local currency sign
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* alleviates the problem, but also makes it a little verbose.
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*
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* @param {string} currencyCode ISO-4217 3-letter currency code.
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* @return {string} Global currency pattern string for given currency.
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*/
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goog.i18n.currency.getGlobalCurrencyPattern = function(currencyCode) {
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var info = goog.i18n.currency.CurrencyInfo[currencyCode];
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var patternNum = info[0];
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if (currencyCode == info[1]) {
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return goog.i18n.currency.getCurrencyPattern_(patternNum, info[1]);
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}
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return currencyCode + ' ' +
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goog.i18n.currency.getCurrencyPattern_(patternNum, info[1]);
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};
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/**
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* Return global currency sign string for those applications
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* that want to handle currency sign themselves.
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*
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* @param {string} currencyCode ISO-4217 3-letter currency code.
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* @return {string} Global currency sign for given currency.
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*/
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goog.i18n.currency.getGlobalCurrencySign = function(currencyCode) {
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var info = goog.i18n.currency.CurrencyInfo[currencyCode];
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return (currencyCode == info[1]) ? currencyCode :
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currencyCode + ' ' + info[1];
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};
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/**
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* Local currency pattern is the most frequently used pattern in currency's
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* native region. It does not care about how it is distinguished from other
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* currencies.
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*
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* @param {string} currencyCode ISO-4217 3-letter currency code.
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* @return {string} Local currency pattern string for given currency.
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*/
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goog.i18n.currency.getLocalCurrencyPattern = function(currencyCode) {
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var info = goog.i18n.currency.CurrencyInfo[currencyCode];
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return goog.i18n.currency.getCurrencyPattern_(info[0], info[1]);
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};
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/**
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* Returns local currency sign string for those applications that need to
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* handle currency sign separately.
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*
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* @param {string} currencyCode ISO-4217 3-letter currency code.
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* @return {string} Local currency sign for given currency.
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*/
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goog.i18n.currency.getLocalCurrencySign = function(currencyCode) {
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return goog.i18n.currency.CurrencyInfo[currencyCode][1];
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};
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/**
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* Portable currency pattern is a compromise between local and global. It is
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* not a mere blend or mid-way between the two. Currency sign is chosen so that
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* it looks familiar to native users. It also has enough information to
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* distinguish itself from other popular currencies in its native region.
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* In this pattern, currency sign symbols that has availability problem in
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* popular fonts are also avoided.
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*
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* @param {string} currencyCode ISO-4217 3-letter currency code.
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* @return {string} Portable currency pattern string for given currency.
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*/
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goog.i18n.currency.getPortableCurrencyPattern = function(currencyCode) {
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var info = goog.i18n.currency.CurrencyInfo[currencyCode];
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return goog.i18n.currency.getCurrencyPattern_(info[0], info[2]);
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};
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/**
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* Return portable currency sign string for those applications that need to
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* handle currency sign themselves.
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*
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* @param {string} currencyCode ISO-4217 3-letter currency code.
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* @return {string} Portable currency sign for given currency.
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*/
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goog.i18n.currency.getPortableCurrencySign = function(currencyCode) {
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return goog.i18n.currency.CurrencyInfo[currencyCode][2];
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};
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/**
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* This function returns the default currency sign position. Some applications
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* may want to handle currency sign and currency amount separately. This
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* function can be used in such situations to correctly position the currency
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* sign relative to the amount.
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*
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* To match the behavior of ICU, position is not determined by display locale.
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*
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* @param {string} currencyCode ISO-4217 3-letter currency code.
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* @return {boolean} true if currency should be positioned before amount field.
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*/
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goog.i18n.currency.isPrefixSignPosition = function(currencyCode) {
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return (goog.i18n.currency.CurrencyInfo[currencyCode][0] &
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goog.i18n.currency.POSITION_FLAG_) == 0;
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};
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/**
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* This function constructs the currency pattern. Currency sign is provided. The
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* pattern information is encoded in patternNum.
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*
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* @param {number} patternNum Encoded pattern number that has
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* currency pattern information.
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* @param {string} sign The currency sign that will be used in pattern.
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* @return {string} currency pattern string.
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* @private
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*/
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goog.i18n.currency.getCurrencyPattern_ = function(patternNum, sign) {
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var strParts = ['#,##0'];
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var precision = patternNum & goog.i18n.currency.PRECISION_MASK_;
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if (precision > 0) {
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strParts.push('.');
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for (var i = 0; i < precision; i++) {
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strParts.push('0');
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}
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}
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if ((patternNum & goog.i18n.currency.POSITION_FLAG_) == 0) {
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strParts.unshift(
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(patternNum & goog.i18n.currency.SPACE_FLAG_) ? "' " : "'");
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strParts.unshift(sign);
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strParts.unshift("'");
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} else {
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strParts.push(
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(patternNum & goog.i18n.currency.SPACE_FLAG_) ? " '" : "'", sign, "'");
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}
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return strParts.join('');
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};
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/**
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* Modify currency pattern string by adjusting precision for given currency.
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* Standard currency pattern will have 2 digit after decimal point.
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* Examples:
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* $#,##0.00 -> $#,##0 (precision == 0)
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* $#,##0.00 -> $#,##0.0 (precision == 1)
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* $#,##0.00 -> $#,##0.000 (precision == 3)
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*
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* @param {string} pattern currency pattern string.
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* @param {string} currencyCode 3-letter currency code.
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* @return {string} modified currency pattern string.
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*/
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goog.i18n.currency.adjustPrecision = function(pattern, currencyCode) {
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var strParts = ['0'];
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var info = goog.i18n.currency.CurrencyInfo[currencyCode];
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var precision = info[0] & goog.i18n.currency.PRECISION_MASK_;
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if (precision > 0) {
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strParts.push('.');
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for (var i = 0; i < precision; i++) {
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strParts.push('0');
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}
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}
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return pattern.replace(/0.00/g, strParts.join(''));
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};
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/**
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* Tier 1 currency information.
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*
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* The first number in the array is a combination of the precision mask and
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* other flags. The precision mask indicates how many decimal places to show for
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* the currency. Valid values are [0..7]. The position flag indicates whether
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* the currency sign should be positioned after the number. Valid values are 0
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* (before the number) or 16 (after the number). The space flag indicates
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* whether a space should be inserted between the currency sign and number.
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* Valid values are 0 (no space) and 32 (space).
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*
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* The number in the array is calculated by adding together the mask and flag
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* values. For example:
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*
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* 0: no precision (0), currency sign first (0), no space (0)
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* 2: two decimals precision (2), currency sign first (0), no space (0)
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* 18: two decimals precision (2), currency sign last (16), no space (0)
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* 50: two decimals precision (2), currency sign last (16), space (32)
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*
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* @const {!Object<!Array<?>>}
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*/
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goog.i18n.currency.CurrencyInfo = {
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'AED': [2, 'dh', '\u062f.\u0625.', 'DH'],
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'ALL': [0, 'Lek', 'Lek'],
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'AUD': [2, '$', 'AU$'],
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'BDT': [2, '\u09F3', 'Tk'],
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'BGN': [2, 'lev', 'lev'],
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'BRL': [2, 'R$', 'R$'],
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'CAD': [2, '$', 'C$'],
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'CDF': [2, 'FrCD', 'CDF'],
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'CHF': [2, 'CHF', 'CHF'],
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'CLP': [0, '$', 'CL$'],
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'CNY': [2, '¥', 'RMB¥'],
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'COP': [32, '$', 'COL$'],
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'CRC': [0, '\u20a1', 'CR\u20a1'],
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'CZK': [50, 'K\u010d', 'K\u010d'],
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'DKK': [50, 'kr.', 'kr.'],
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'DOP': [2, 'RD$', 'RD$'],
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'EGP': [2, '£', 'LE'],
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'ETB': [2, 'Birr', 'Birr'],
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'EUR': [2, '€', '€'],
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'GBP': [2, '£', 'GB£'],
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'HKD': [2, '$', 'HK$'],
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'HRK': [2, 'kn', 'kn'],
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'HUF': [34, 'Ft', 'Ft'],
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'IDR': [0, 'Rp', 'Rp'],
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'ILS': [34, '\u20AA', 'IL\u20AA'],
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'INR': [2, '\u20B9', 'Rs'],
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'IRR': [0, 'Rial', 'IRR'],
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'ISK': [0, 'kr', 'kr'],
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'JMD': [2, '$', 'JA$'],
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'JPY': [0, '¥', 'JP¥'],
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'KRW': [0, '\u20A9', 'KR₩'],
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'LKR': [2, 'Rs', 'SLRs'],
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'LTL': [2, 'Lt', 'Lt'],
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'MNT': [0, '\u20AE', 'MN₮'],
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'MVR': [2, 'Rf', 'MVR'],
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'MXN': [2, '$', 'Mex$'],
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'MYR': [2, 'RM', 'RM'],
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'NOK': [50, 'kr', 'NOkr'],
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'PAB': [2, 'B/.', 'B/.'],
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'PEN': [2, 'S/.', 'S/.'],
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'PHP': [2, '\u20B1', 'Php'],
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'PKR': [0, 'Rs', 'PKRs.'],
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'PLN': [50, 'z\u0142', 'z\u0142'],
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'RON': [2, 'RON', 'RON'],
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'RSD': [0, 'din', 'RSD'],
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'RUB': [50, '\u20bd', 'RUB'],
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'SAR': [2, 'Rial', 'Rial'],
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'SEK': [50, 'kr', 'kr'],
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'SGD': [2, '$', 'S$'],
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'THB': [2, '\u0e3f', 'THB'],
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'TRY': [2, 'TL', 'YTL'],
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'TWD': [2, 'NT$', 'NT$'],
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'TZS': [0, 'TSh', 'TSh'],
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'UAH': [2, 'грн.', 'UAH'],
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'USD': [2, '$', 'US$'],
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'UYU': [2, '$', '$U'],
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'VND': [48, '\u20AB', 'VN\u20AB'],
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'YER': [0, 'Rial', 'Rial'],
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'ZAR': [2, 'R', 'ZAR']
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};
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/**
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* Tier 2 currency information.
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* @const {!Object<!Array<?>>}
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*/
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goog.i18n.currency.CurrencyInfoTier2 = {
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'AFN': [48, 'Af.', 'AFN'],
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'AMD': [32, 'Dram', 'dram'],
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'ANG': [2, 'NAf.', 'ANG'],
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'AOA': [2, 'Kz', 'Kz'],
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'ARS': [34, '$', 'AR$'],
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'AWG': [2, 'Afl.', 'Afl.'],
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'AZN': [34, '\u20bc', 'AZN'],
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'BAM': [2, 'KM', 'KM'],
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'BBD': [2, '$', 'Bds$'],
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'BHD': [3, 'din', 'din'],
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'BIF': [0, 'FBu', 'FBu'],
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'BMD': [2, '$', 'BD$'],
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'BND': [2, '$', 'B$'],
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'BOB': [2, 'Bs', 'Bs'],
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'BSD': [2, '$', 'BS$'],
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'BTN': [2, 'Nu.', 'Nu.'],
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'BWP': [2, 'P', 'pula'],
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'BYR': [48, 'p.', 'BYR'],
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'BZD': [2, '$', 'BZ$'],
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'CUC': [1, '$', 'CUC$'],
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'CUP': [2, '$', 'CU$'],
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'CVE': [2, 'CVE', 'Esc'],
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'DJF': [0, 'Fdj', 'Fdj'],
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'DZD': [2, 'din', 'din'],
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'ERN': [2, 'Nfk', 'Nfk'],
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'FJD': [2, '$', 'FJ$'],
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'FKP': [2, '£', 'FK£'],
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'GEL': [2, 'GEL', 'GEL'],
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'GHS': [2, 'GHS', 'GHS'],
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'GIP': [2, '£', 'GI£'],
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'GMD': [2, 'GMD', 'GMD'],
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'GNF': [0, 'FG', 'FG'],
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'GTQ': [2, 'Q', 'GTQ'],
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'GYD': [0, '$', 'GY$'],
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'HNL': [2, 'L', 'HNL'],
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'HTG': [2, 'HTG', 'HTG'],
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'IQD': [0, 'din', 'IQD'],
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'JOD': [3, 'din', 'JOD'],
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'KES': [2, 'Ksh', 'Ksh'],
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'KGS': [2, 'KGS', 'KGS'],
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'KHR': [2, 'Riel', 'KHR'],
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'KMF': [0, 'CF', 'KMF'],
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'KPW': [0, '\u20A9KP', 'KPW'],
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'KWD': [3, 'din', 'KWD'],
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'KYD': [2, '$', 'KY$'],
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'KZT': [2, '\u20B8', 'KZT'],
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'LAK': [0, '\u20AD', '\u20AD'],
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'LBP': [0, 'L£', 'LBP'],
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'LRD': [2, '$', 'L$'],
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'LSL': [2, 'LSL', 'LSL'],
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'LYD': [3, 'din', 'LD'],
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'MAD': [2, 'dh', 'MAD'],
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'MDL': [2, 'MDL', 'MDL'],
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'MGA': [0, 'Ar', 'MGA'],
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'MKD': [2, 'din', 'MKD'],
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'MMK': [0, 'K', 'MMK'],
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'MOP': [2, 'MOP', 'MOP$'],
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'MRO': [0, 'MRO', 'MRO'],
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'MUR': [0, 'MURs', 'MURs'],
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'MWK': [2, 'MWK', 'MWK'],
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'MZN': [2, 'MTn', 'MTn'],
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'NAD': [2, '$', 'N$'],
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'NGN': [2, '\u20A6', 'NG\u20A6'],
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'NIO': [2, 'C$', 'C$'],
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'NPR': [2, 'Rs', 'NPRs'],
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'NZD': [2, '$', 'NZ$'],
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'OMR': [3, 'Rial', 'OMR'],
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'PGK': [2, 'PGK', 'PGK'],
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'PYG': [16, 'Gs.', 'PYG'],
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'QAR': [2, 'Rial', 'QR'],
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'RWF': [0, 'RF', 'RF'],
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'SBD': [2, '$', 'SI$'],
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'SCR': [2, 'SCR', 'SCR'],
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'SDG': [2, 'SDG', 'SDG'],
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'SHP': [2, '£', 'SH£'],
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'SLL': [0, 'SLL', 'SLL'],
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'SOS': [0, 'SOS', 'SOS'],
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'SRD': [2, '$', 'SR$'],
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'SSP': [2, '£', 'SSP'],
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'STD': [0, 'Db', 'Db'],
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'SYP': [0, '£', 'SY£'],
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'SZL': [2, 'SZL', 'SZL'],
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'TJS': [2, 'Som', 'TJS'],
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'TND': [3, 'din', 'DT'],
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'TOP': [2, 'T$', 'T$'],
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'TTD': [2, '$', 'TT$'],
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'UGX': [0, 'UGX', 'UGX'],
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'UZS': [0, 'so\u02bcm', 'UZS'],
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'VEF': [2, 'Bs', 'Bs'],
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'VUV': [0, 'VUV', 'VUV'],
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'WST': [2, 'WST', 'WST'],
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'XAF': [0, 'FCFA', 'FCFA'],
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'XCD': [2, '$', 'EC$'],
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'XOF': [0, 'CFA', 'CFA'],
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'XPF': [0, 'FCFP', 'FCFP'],
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'ZMW': [0, 'ZMW', 'ZMW'],
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'ZWD': [0, '$', 'Z$']
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};
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