angular/modules/@angular/compiler/src/i18n/html_parser.ts
2016-08-15 22:28:38 -07:00

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2.6 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {HtmlParser as BaseHtmlParser} from '../ml_parser/html_parser';
import {DEFAULT_INTERPOLATION_CONFIG, InterpolationConfig} from '../ml_parser/interpolation_config';
import {ParseTreeResult} from '../ml_parser/parser';
import {mergeTranslations} from './extractor_merger';
import {MessageBundle} from './message_bundle';
import {Serializer} from './serializers/serializer';
import {Xliff} from './serializers/xliff';
import {Xmb} from './serializers/xmb';
import {Xtb} from './serializers/xtb';
import {TranslationBundle} from './translation_bundle';
export class HtmlParser implements BaseHtmlParser {
// @override
getTagDefinition: any;
// TODO(vicb): transB.load() should not need a msgB & add transB.resolve(msgB,
// interpolationConfig)
// TODO(vicb): remove the interpolationConfig from the Xtb serializer
constructor(
private _htmlParser: BaseHtmlParser, private _translations?: string,
private _translationsFormat?: string) {}
parse(
source: string, url: string, parseExpansionForms: boolean = false,
interpolationConfig: InterpolationConfig = DEFAULT_INTERPOLATION_CONFIG): ParseTreeResult {
const parseResult =
this._htmlParser.parse(source, url, parseExpansionForms, interpolationConfig);
if (!this._translations || this._translations === '') {
// Do not enable i18n when no translation bundle is provided
return parseResult;
}
// TODO(vicb): add support for implicit tags / attributes
const messageBundle = new MessageBundle(this._htmlParser, [], {});
const errors = messageBundle.updateFromTemplate(source, url, interpolationConfig);
if (errors && errors.length) {
return new ParseTreeResult(parseResult.rootNodes, parseResult.errors.concat(errors));
}
const serializer = this._createSerializer(interpolationConfig);
const translationBundle =
TranslationBundle.load(this._translations, url, messageBundle, serializer);
return mergeTranslations(parseResult.rootNodes, translationBundle, interpolationConfig, [], {});
}
private _createSerializer(interpolationConfig: InterpolationConfig): Serializer {
const format = (this._translationsFormat || 'xlf').toLowerCase();
switch (format) {
case 'xmb':
return new Xmb();
case 'xtb':
return new Xtb(this._htmlParser, interpolationConfig);
case 'xliff':
case 'xlf':
default:
return new Xliff(this._htmlParser, interpolationConfig);
}
}
}