126 lines
3.8 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 {ListWrapper} from '../../facade/collection';
import * as html from '../../html_parser/ast';
import * as i18n from '../i18n_ast';
import {Serializer} from './serializer';
import * as xml from './xml_helper';
const _MESSAGES_TAG = 'messagebundle';
const _MESSAGE_TAG = 'msg';
const _PLACEHOLDER_TAG = 'ph';
const _EXEMPLE_TAG = 'ex';
const _DOCTYPE = `<!ELEMENT messagebundle (msg)*>
<!ATTLIST messagebundle class CDATA #IMPLIED>
<!ELEMENT msg (#PCDATA|ph|source)*>
<!ATTLIST msg id CDATA #IMPLIED>
<!ATTLIST msg seq CDATA #IMPLIED>
<!ATTLIST msg name CDATA #IMPLIED>
<!ATTLIST msg desc CDATA #IMPLIED>
<!ATTLIST msg meaning CDATA #IMPLIED>
<!ATTLIST msg obsolete (obsolete) #IMPLIED>
<!ATTLIST msg xml:space (default|preserve) "default">
<!ATTLIST msg is_hidden CDATA #IMPLIED>
<!ELEMENT source (#PCDATA)>
<!ELEMENT ph (#PCDATA|ex)*>
<!ATTLIST ph name CDATA #REQUIRED>
<!ELEMENT ex (#PCDATA)>`;
export class Xmb implements Serializer {
write(messageMap: {[k: string]: i18n.Message}): string {
const visitor = new _Visitor();
let rootNode = new xml.Tag(_MESSAGES_TAG);
rootNode.children.push(new xml.Text('\n'));
Object.keys(messageMap).forEach((id) => {
const message = messageMap[id];
let attrs: {[k: string]: string} = {id};
if (message.description) {
attrs['desc'] = message.description;
}
if (message.meaning) {
attrs['meaning'] = message.meaning;
}
rootNode.children.push(
new xml.Text(' '), new xml.Tag(_MESSAGE_TAG, attrs, visitor.serialize(message.nodes)),
new xml.Text('\n'));
});
return xml.serialize([
new xml.Declaration({version: '1.0', encoding: 'UTF-8'}),
new xml.Text('\n'),
new xml.Doctype(_MESSAGES_TAG, _DOCTYPE),
new xml.Text('\n'),
rootNode,
]);
}
load(content: string, url: string, placeholders: {[id: string]: {[name: string]: string}}):
{[id: string]: html.Node[]} {
throw new Error('Unsupported');
}
}
class _Visitor implements i18n.Visitor {
visitText(text: i18n.Text, context?: any): xml.Node[] { return [new xml.Text(text.value)]; }
visitContainer(container: i18n.Container, context?: any): xml.Node[] {
const nodes: xml.Node[] = [];
container.children.forEach((node: i18n.Node) => nodes.push(...node.visit(this)));
return nodes;
}
visitIcu(icu: i18n.Icu, context?: any): xml.Node[] {
const nodes = [new xml.Text(`{${icu.expression}, ${icu.type}, `)];
Object.keys(icu.cases).forEach((c: string) => {
nodes.push(new xml.Text(`${c} {`), ...icu.cases[c].visit(this), new xml.Text(`}`));
});
nodes.push(new xml.Text(`}`));
return nodes;
}
visitTagPlaceholder(ph: i18n.TagPlaceholder, context?: any): xml.Node[] {
const startEx = new xml.Tag(_EXEMPLE_TAG, {}, [new xml.Text(`<${ph.tag}>`)]);
const startTagPh = new xml.Tag(_PLACEHOLDER_TAG, {name: ph.startName}, [startEx]);
if (ph.isVoid) {
// void tags have no children nor closing tags
return [startTagPh];
}
const closeEx = new xml.Tag(_EXEMPLE_TAG, {}, [new xml.Text(`</${ph.tag}>`)]);
const closeTagPh = new xml.Tag(_PLACEHOLDER_TAG, {name: ph.closeName}, [closeEx]);
return [startTagPh, ...this.serialize(ph.children), closeTagPh];
}
visitPlaceholder(ph: i18n.Placeholder, context?: any): xml.Node[] {
return [new xml.Tag(_PLACEHOLDER_TAG, {name: ph.name})];
}
visitIcuPlaceholder(ph: i18n.IcuPlaceholder, context?: any): xml.Node[] {
return [new xml.Tag(_PLACEHOLDER_TAG, {name: ph.name})];
}
serialize(nodes: i18n.Node[]): xml.Node[] {
return ListWrapper.flatten(nodes.map(node => node.visit(this)));
}
}