ngx-i18nsupport-lib
Version:
A Typescript library to work with Angular generated i18n files (xliff, xmb)
126 lines • 5.42 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var util_1 = require("util");
var MessageCategory = /** @class */ (function () {
function MessageCategory(_category, _message) {
this._category = _category;
this._message = _message;
}
MessageCategory.prototype.getCategory = function () {
return this._category;
};
MessageCategory.prototype.getMessageNormalized = function () {
return this._message;
};
return MessageCategory;
}());
/**
* Implementation of an ICU Message.
* Created by martin on 05.06.2017.
*/
var ICUMessage = /** @class */ (function () {
function ICUMessage(_parser, isPluralMessage) {
this._parser = _parser;
this._isPluralMessage = isPluralMessage;
this._categories = [];
}
ICUMessage.prototype.addCategory = function (category, message) {
this._categories.push(new MessageCategory(category, message));
};
/**
* ICU message as native string.
* This is, how it is stored, something like '{x, plural, =0 {..}'
* @return {string}
*/
ICUMessage.prototype.asNativeString = function () {
var varname = (this.isPluralMessage()) ? 'VAR_PLURAL' : 'VAR_SELECT';
var type = (this.isPluralMessage()) ? 'plural' : 'select';
var choiceString = '';
this._categories.forEach(function (category) {
choiceString = choiceString + util_1.format(' %s {%s}', category.getCategory(), category.getMessageNormalized().asNativeString());
});
return util_1.format('{%s, %s,%s}', varname, type, choiceString);
};
/**
* Is it a plural message?
*/
ICUMessage.prototype.isPluralMessage = function () {
return this._isPluralMessage;
};
/**
* Is it a select message?
*/
ICUMessage.prototype.isSelectMessage = function () {
return !this._isPluralMessage;
};
/**
* All the parts of the message.
* E.g. the ICU message {wolves, plural, =0 {no wolves} =1 {one wolf} =2 {two wolves} other {a wolf pack}}
* has 4 category objects with the categories =0, =1, =2, other.
*/
ICUMessage.prototype.getCategories = function () {
return this._categories;
};
/**
* Translate message and return a new, translated message
* @param translation the translation (hashmap of categories and translations).
* @return new message wit translated content.
* @throws an error if translation does not match the message.
* This is the case, if there are categories not contained in the original message.
*/
ICUMessage.prototype.translate = function (translation) {
var _this = this;
var message = new ICUMessage(this._parser, this.isPluralMessage());
var translatedCategories = new Set();
this._categories.forEach(function (category) {
var translatedMessage;
var translationForCategory = translation[category.getCategory()];
if (util_1.isNullOrUndefined(translationForCategory)) {
translatedMessage = category.getMessageNormalized();
}
else if (util_1.isString(translationForCategory)) {
translatedCategories.add(category.getCategory());
translatedMessage = _this._parser.parseNormalizedString(translationForCategory, null);
}
else {
// TODO embedded ICU Message
translatedMessage = null;
}
message.addCategory(category.getCategory(), translatedMessage);
});
// new categories, which are not part of the original message
Object.keys(translation).forEach(function (categoryName) {
if (!translatedCategories.has(categoryName)) {
if (_this.isSelectMessage()) {
throw new Error(util_1.format('adding a new category not allowed for select messages ("%s" is not part of message)', categoryName));
}
else {
_this.checkValidPluralCategory(categoryName);
// TODO embedded ICU Message
var translatedMessage = _this._parser.parseNormalizedString(translation[categoryName], null);
message.addCategory(categoryName, translatedMessage);
}
}
});
return message;
};
/**
* Check, wether category is valid plural category.
* Allowed are =n, 'zero', 'one', 'two', 'few', 'many' and 'other'
* @param categoryName category
* @throws an error, if it is not a valid category name
*/
ICUMessage.prototype.checkValidPluralCategory = function (categoryName) {
var allowedKeywords = ['zero', 'one', 'two', 'few', 'many', 'other'];
if (categoryName.match(/=\d+/)) {
return;
}
if (allowedKeywords.find(function (key) { return key === categoryName; })) {
return;
}
throw new Error(util_1.format('invalid plural category "%s", allowed are =<n> and %s', categoryName, allowedKeywords));
};
return ICUMessage;
}());
exports.ICUMessage = ICUMessage;
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