102 lines
No EOL
18 KiB
JavaScript
Executable file
102 lines
No EOL
18 KiB
JavaScript
Executable file
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.dev/license
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*/
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import { WhitespaceVisitor, visitAllWithSiblings } from '../ml_parser/html_whitespaces';
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import { extractMessages } from './extractor_merger';
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import * as i18n from './i18n_ast';
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/**
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* A container for message extracted from the templates.
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*/
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export class MessageBundle {
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constructor(_htmlParser, _implicitTags, _implicitAttrs, _locale = null, _preserveWhitespace = true) {
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this._htmlParser = _htmlParser;
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this._implicitTags = _implicitTags;
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this._implicitAttrs = _implicitAttrs;
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this._locale = _locale;
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this._preserveWhitespace = _preserveWhitespace;
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this._messages = [];
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}
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updateFromTemplate(source, url, interpolationConfig) {
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const htmlParserResult = this._htmlParser.parse(source, url, {
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tokenizeExpansionForms: true,
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interpolationConfig,
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});
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if (htmlParserResult.errors.length) {
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return htmlParserResult.errors;
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}
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// Trim unnecessary whitespace from extracted messages if requested. This
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// makes the messages more durable to trivial whitespace changes without
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// affected message IDs.
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const rootNodes = this._preserveWhitespace
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? htmlParserResult.rootNodes
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: visitAllWithSiblings(new WhitespaceVisitor(/* preserveSignificantWhitespace */ false), htmlParserResult.rootNodes);
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const i18nParserResult = extractMessages(rootNodes, interpolationConfig, this._implicitTags, this._implicitAttrs,
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/* preserveSignificantWhitespace */ this._preserveWhitespace);
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if (i18nParserResult.errors.length) {
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return i18nParserResult.errors;
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}
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this._messages.push(...i18nParserResult.messages);
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return [];
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}
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// Return the message in the internal format
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// The public (serialized) format might be different, see the `write` method.
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getMessages() {
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return this._messages;
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}
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write(serializer, filterSources) {
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const messages = {};
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const mapperVisitor = new MapPlaceholderNames();
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// Deduplicate messages based on their ID
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this._messages.forEach((message) => {
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const id = serializer.digest(message);
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if (!messages.hasOwnProperty(id)) {
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messages[id] = message;
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}
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else {
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messages[id].sources.push(...message.sources);
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}
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});
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// Transform placeholder names using the serializer mapping
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const msgList = Object.keys(messages).map((id) => {
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const mapper = serializer.createNameMapper(messages[id]);
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const src = messages[id];
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const nodes = mapper ? mapperVisitor.convert(src.nodes, mapper) : src.nodes;
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let transformedMessage = new i18n.Message(nodes, {}, {}, src.meaning, src.description, id);
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transformedMessage.sources = src.sources;
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if (filterSources) {
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transformedMessage.sources.forEach((source) => (source.filePath = filterSources(source.filePath)));
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}
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return transformedMessage;
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});
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return serializer.write(msgList, this._locale);
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}
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}
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// Transform an i18n AST by renaming the placeholder nodes with the given mapper
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class MapPlaceholderNames extends i18n.CloneVisitor {
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convert(nodes, mapper) {
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return mapper ? nodes.map((n) => n.visit(this, mapper)) : nodes;
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}
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visitTagPlaceholder(ph, mapper) {
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const startName = mapper.toPublicName(ph.startName);
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const closeName = ph.closeName ? mapper.toPublicName(ph.closeName) : ph.closeName;
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const children = ph.children.map((n) => n.visit(this, mapper));
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return new i18n.TagPlaceholder(ph.tag, ph.attrs, startName, closeName, children, ph.isVoid, ph.sourceSpan, ph.startSourceSpan, ph.endSourceSpan);
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}
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visitBlockPlaceholder(ph, mapper) {
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const startName = mapper.toPublicName(ph.startName);
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const closeName = ph.closeName ? mapper.toPublicName(ph.closeName) : ph.closeName;
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const children = ph.children.map((n) => n.visit(this, mapper));
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return new i18n.BlockPlaceholder(ph.name, ph.parameters, startName, closeName, children, ph.sourceSpan, ph.startSourceSpan, ph.endSourceSpan);
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}
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visitPlaceholder(ph, mapper) {
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return new i18n.Placeholder(ph.value, mapper.toPublicName(ph.name), ph.sourceSpan);
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}
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visitIcuPlaceholder(ph, mapper) {
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return new i18n.IcuPlaceholder(ph.value, mapper.toPublicName(ph.name), ph.sourceSpan);
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}
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}
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//# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {InterpolationConfig} from '../ml_parser/defaults';\nimport {HtmlParser} from '../ml_parser/html_parser';\nimport {WhitespaceVisitor, visitAllWithSiblings} from '../ml_parser/html_whitespaces';\nimport {ParseError} from '../parse_util';\n\nimport {extractMessages} from './extractor_merger';\nimport * as i18n from './i18n_ast';\nimport {PlaceholderMapper, Serializer} from './serializers/serializer';\n\n/**\n * A container for message extracted from the templates.\n */\nexport class MessageBundle {\n  private _messages: i18n.Message[] = [];\n\n  constructor(\n    private _htmlParser: HtmlParser,\n    private _implicitTags: string[],\n    private _implicitAttrs: {[k: string]: string[]},\n    private _locale: string | null = null,\n    private readonly _preserveWhitespace = true,\n  ) {}\n\n  updateFromTemplate(\n    source: string,\n    url: string,\n    interpolationConfig: InterpolationConfig,\n  ): ParseError[] {\n    const htmlParserResult = this._htmlParser.parse(source, url, {\n      tokenizeExpansionForms: true,\n      interpolationConfig,\n    });\n\n    if (htmlParserResult.errors.length) {\n      return htmlParserResult.errors;\n    }\n\n    // Trim unnecessary whitespace from extracted messages if requested. This\n    // makes the messages more durable to trivial whitespace changes without\n    // affected message IDs.\n    const rootNodes = this._preserveWhitespace\n      ? htmlParserResult.rootNodes\n      : visitAllWithSiblings(\n          new WhitespaceVisitor(/* preserveSignificantWhitespace */ false),\n          htmlParserResult.rootNodes,\n        );\n\n    const i18nParserResult = extractMessages(\n      rootNodes,\n      interpolationConfig,\n      this._implicitTags,\n      this._implicitAttrs,\n      /* preserveSignificantWhitespace */ this._preserveWhitespace,\n    );\n\n    if (i18nParserResult.errors.length) {\n      return i18nParserResult.errors;\n    }\n\n    this._messages.push(...i18nParserResult.messages);\n    return [];\n  }\n\n  // Return the message in the internal format\n  // The public (serialized) format might be different, see the `write` method.\n  getMessages(): i18n.Message[] {\n    return this._messages;\n  }\n\n  write(serializer: Serializer, filterSources?: (path: string) => string): string {\n    const messages: {[id: string]: i18n.Message} = {};\n    const mapperVisitor = new MapPlaceholderNames();\n\n    // Deduplicate messages based on their ID\n    this._messages.forEach((message) => {\n      const id = serializer.digest(message);\n      if (!messages.hasOwnProperty(id)) {\n        messages[id] = message;\n      } else {\n        messages[id].sources.push(...message.sources);\n      }\n    });\n\n    // Transform placeholder names using the serializer mapping\n    const msgList = Object.keys(messages).map((id) => {\n      const mapper = serializer.createNameMapper(messages[id]);\n      const src = messages[id];\n      const nodes = mapper ? mapperVisitor.convert(src.nodes, mapper) : src.nodes;\n      let transformedMessage = new i18n.Message(nodes, {}, {}, src.meaning, src.description, id);\n      transformedMessage.sources = src.sources;\n      if (filterSources) {\n        transformedMessage.sources.forEach(\n          (source: i18n.MessageSpan) => (source.filePath = filterSources(source.filePath)),\n        );\n      }\n      return transformedMessage;\n    });\n\n    return serializer.write(msgList, this._locale);\n  }\n}\n\n// Transform an i18n AST by renaming the placeholder nodes with the given mapper\nclass MapPlaceholderNames extends i18n.CloneVisitor {\n  convert(nodes: i18n.Node[], mapper: PlaceholderMapper): i18n.Node[] {\n    return mapper ? nodes.map((n) => n.visit(this, mapper)) : nodes;\n  }\n\n  override visitTagPlaceholder(\n    ph: i18n.TagPlaceholder,\n    mapper: PlaceholderMapper,\n  ): i18n.TagPlaceholder {\n    const startName = mapper.toPublicName(ph.startName)!;\n    const closeName = ph.closeName ? mapper.toPublicName(ph.closeName)! : ph.closeName;\n    const children = ph.children.map((n) => n.visit(this, mapper));\n    return new i18n.TagPlaceholder(\n      ph.tag,\n      ph.attrs,\n      startName,\n      closeName,\n      children,\n      ph.isVoid,\n      ph.sourceSpan,\n      ph.startSourceSpan,\n      ph.endSourceSpan,\n    );\n  }\n\n  override visitBlockPlaceholder(\n    ph: i18n.BlockPlaceholder,\n    mapper: PlaceholderMapper,\n  ): i18n.BlockPlaceholder {\n    const startName = mapper.toPublicName(ph.startName)!;\n    const closeName = ph.closeName ? mapper.toPublicName(ph.closeName)! : ph.closeName;\n    const children = ph.children.map((n) => n.visit(this, mapper));\n    return new i18n.BlockPlaceholder(\n      ph.name,\n      ph.parameters,\n      startName,\n      closeName,\n      children,\n      ph.sourceSpan,\n      ph.startSourceSpan,\n      ph.endSourceSpan,\n    );\n  }\n\n  override visitPlaceholder(ph: i18n.Placeholder, mapper: PlaceholderMapper): i18n.Placeholder {\n    return new i18n.Placeholder(ph.value, mapper.toPublicName(ph.name)!, ph.sourceSpan);\n  }\n\n  override visitIcuPlaceholder(\n    ph: i18n.IcuPlaceholder,\n    mapper: PlaceholderMapper,\n  ): i18n.IcuPlaceholder {\n    return new i18n.IcuPlaceholder(ph.value, mapper.toPublicName(ph.name)!, ph.sourceSpan);\n  }\n}\n"]}
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