fix(ivy): i18n - support "\", "`" and "${" sequences in i18n messages (#33820)
Since i18n messages are mapped to `$localize` tagged template strings, the "raw" version must be properly escaped. Otherwise TS will throw an error such as: ``` Error: Debug Failure. False expression: Expected argument 'text' to be the normalized (i.e. 'cooked') version of argument 'rawText'. ``` This commit ensures that we properly escape these raw strings before creating TS AST nodes from them. PR Close #33820
This commit is contained in:
Pete Bacon Darwin
Alex Rickabaugh
parent
62f7d0fe5c
commit
a6247aafa1
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@ -8,7 +8,6 @@
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import {ArrayType, AssertNotNull, BinaryOperator, BinaryOperatorExpr, BuiltinType, BuiltinTypeName, CastExpr, ClassStmt, CommaExpr, CommentStmt, ConditionalExpr, DeclareFunctionStmt, DeclareVarStmt, Expression, ExpressionStatement, ExpressionType, ExpressionVisitor, ExternalExpr, ExternalReference, FunctionExpr, IfStmt, InstantiateExpr, InvokeFunctionExpr, InvokeMethodExpr, JSDocCommentStmt, LiteralArrayExpr, LiteralExpr, LiteralMapExpr, MapType, NotExpr, ReadKeyExpr, ReadPropExpr, ReadVarExpr, ReturnStatement, Statement, StatementVisitor, StmtModifier, ThrowStmt, TryCatchStmt, Type, TypeVisitor, TypeofExpr, WrappedNodeExpr, WriteKeyExpr, WritePropExpr, WriteVarExpr} from '@angular/compiler';
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import {LocalizedString} from '@angular/compiler/src/output/output_ast';
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import {serializeI18nHead, serializeI18nTemplatePart} from '@angular/compiler/src/render3/view/i18n/meta';
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import * as ts from 'typescript';
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import {DefaultImportRecorder, ImportRewriter, NOOP_DEFAULT_IMPORT_RECORDER, NoopImportRewriter} from '../../imports';
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@ -547,7 +546,7 @@ export class TypeTranslatorVisitor implements ExpressionVisitor, TypeVisitor {
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*/
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function visitLocalizedString(ast: LocalizedString, context: Context, visitor: ExpressionVisitor) {
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let template: ts.TemplateLiteral;
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const metaBlock = serializeI18nHead(ast.metaBlock, ast.messageParts[0]);
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const metaBlock = ast.serializeI18nHead();
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if (ast.messageParts.length === 1) {
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template = ts.createNoSubstitutionTemplateLiteral(metaBlock.cooked, metaBlock.raw);
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} else {
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@ -555,9 +554,8 @@ function visitLocalizedString(ast: LocalizedString, context: Context, visitor: E
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const spans: ts.TemplateSpan[] = [];
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for (let i = 1; i < ast.messageParts.length; i++) {
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const resolvedExpression = ast.expressions[i - 1].visitExpression(visitor, context);
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const templatePart =
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serializeI18nTemplatePart(ast.placeHolderNames[i - 1], ast.messageParts[i]);
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const templateMiddle = ts.createTemplateMiddle(templatePart);
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const templatePart = ast.serializeI18nTemplatePart(i);
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const templateMiddle = ts.createTemplateMiddle(templatePart.cooked, templatePart.raw);
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spans.push(ts.createTemplateSpan(resolvedExpression, templateMiddle));
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}
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if (spans.length > 0) {
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@ -14,15 +14,15 @@ import {NgtscProgram} from '../../src/ngtsc/program';
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const IDENTIFIER = /[A-Za-z_$ɵ][A-Za-z0-9_$]*/;
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const OPERATOR =
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/!|\?|%|\*|\/|\^|&&?|\|\|?|\(|\)|\{|\}|\[|\]|:|;|<=?|>=?|={1,3}|!==?|=>|\+\+?|--?|@|,|\.|\.\.\./;
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/!|\?|%|\*|\/|\^|&&?|\|\|?|\(|\)|\{|\}|\[|\]|:|;|<=?|>=?|={1,3}|!==?|=>|\+\+?|--?|@|,|\.|\.\.\.|`|\\'/;
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const STRING = /'(\\'|[^'])*'|"(\\"|[^"])*"/;
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const BACKTICK_STRING = /\\`(([\s\S]*?)(\$\{[^}]*?\})?)*?\\`/;
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const BACKTICK_STRING = /\\`(([\s\S]*?)(\$\{[^}]*?\})?)*?[^\\]\\`/;
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const BACKTICK_INTERPOLATION = /(\$\{[^}]*\})/;
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const NUMBER = /\d+/;
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const ELLIPSIS = '…';
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const TOKEN = new RegExp(
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`\\s*((${IDENTIFIER.source})|(${OPERATOR.source})|(${STRING.source})|(${BACKTICK_STRING.source})|${NUMBER.source}|${ELLIPSIS})\\s*`,
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`\\s*((${IDENTIFIER.source})|(${BACKTICK_STRING.source})|(${OPERATOR.source})|(${STRING.source})|${NUMBER.source}|${ELLIPSIS})\\s*`,
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'y');
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type Piece = string | RegExp;
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@ -76,6 +76,9 @@ function tokenize(text: string): Piece[] {
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*/
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function tokenizeBackTickString(str: string): Piece[] {
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const pieces: Piece[] = ['`'];
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// Unescape backticks that are inside the backtick string
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// (we had to double escape them in the test string so they didn't look like string markers)
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str = str.replace(/\\\\\\`/, '\\`');
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const backTickPieces = str.slice(2, -2).split(BACKTICK_INTERPOLATION);
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backTickPieces.forEach((backTickPiece) => {
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if (BACKTICK_INTERPOLATION.test(backTickPiece)) {
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@ -111,6 +111,15 @@ const verifyUniqueConsts = (output: string) => {
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return true;
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};
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/**
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* Escape the template string for being placed inside a backtick string literal.
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*
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* * "\" would erroneously indicate a control character
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* * "`" and "${" strings would erroneously indicate the end of a message part
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*/
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const escapeTemplate = (template: string) =>
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template.replace(/\\/g, '\\\\').replace(/`/g, '\\`').replace(/\$\{/g, '$\\{');
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const getAppFilesWithTemplate = (template: string, args: any = {}) => ({
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app: {
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'spec.ts': `
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@ -120,7 +129,7 @@ const getAppFilesWithTemplate = (template: string, args: any = {}) => ({
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selector: 'my-component',
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${args.preserveWhitespaces ? 'preserveWhitespaces: true,' : ''}
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${args.interpolation ? 'interpolation: ' + JSON.stringify(args.interpolation) + ', ' : ''}
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template: \`${template}\`
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template: \`${escapeTemplate(template)}\`
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})
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export class MyComponent {}
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@ -180,7 +189,8 @@ describe('i18n support in the template compiler', () => {
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<div i18n-title="meaningD|descD" title="Title D">Content D</div>
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<div i18n-title="meaningE@@idE" title="Title E">Content E</div>
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<div i18n-title="@@idF" title="Title F">Content F</div>
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<div i18n-title="[BACKUP_MESSAGE_ID:idH]desc@@idG" title="Title G">Content G</div>
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<div i18n-title="[BACKUP_$\{MESSAGE}_ID:idH]\`desc@@idG" title="Title G">Content G</div>
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<div i18n="Some text \\' [BACKUP_MESSAGE_ID: xxx]">Content H</div>
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`;
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const output = String.raw `
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@ -258,15 +268,28 @@ describe('i18n support in the template compiler', () => {
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var $I18N_23$;
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if (ngI18nClosureMode) {
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/**
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* @desc [BACKUP_MESSAGE_ID:idH]desc
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* @desc [BACKUP_$` +
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String.raw `{MESSAGE}_ID:idH]` +
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'`' + String.raw `desc
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*/
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const $MSG_EXTERNAL_idG$$APP_SPEC_TS_24$ = goog.getMsg("Title G");
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$I18N_23$ = $MSG_EXTERNAL_idG$$APP_SPEC_TS_24$;
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}
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else {
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$I18N_23$ = $localize \`:[BACKUP_MESSAGE_ID\:idH]desc@@idG:Title G\`;
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$I18N_23$ = $localize \`:[BACKUP_$\{MESSAGE}_ID\:idH]\\\`desc@@idG:Title G\`;
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}
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const $_c25$ = ["title", $I18N_23$];
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var $I18N_20$;
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if (ngI18nClosureMode) {
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/**
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* @desc Some text \' [BACKUP_MESSAGE_ID: xxx]
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*/
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const $MSG_EXTERNAL_idG$$APP_SPEC_TS_21$ = goog.getMsg("Content H");
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$I18N_20$ = $MSG_EXTERNAL_idG$$APP_SPEC_TS_21$;
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}
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else {
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$I18N_20$ = $localize \`:Some text \\' [BACKUP_MESSAGE_ID\: xxx]:Content H\`;
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}
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…
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consts: [[${AttributeMarker.I18n}, "title"]],
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template: function MyComponent_Template(rf, ctx) {
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@ -298,6 +321,9 @@ describe('i18n support in the template compiler', () => {
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$r3$.ɵɵi18nAttributes(18, $_c25$);
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$r3$.ɵɵtext(19, "Content G");
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$r3$.ɵɵelementEnd();
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$r3$.ɵɵelementStart(20, "div");
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$r3$.ɵɵi18n(21, $I18N_20$);
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$r3$.ɵɵelementEnd();
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}
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}
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`;
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@ -7,8 +7,6 @@
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*/
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import {ParseSourceSpan} from '../parse_util';
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import {serializeI18nHead, serializeI18nTemplatePart} from '../render3/view/i18n/meta';
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import * as o from './output_ast';
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import {SourceMapGenerator} from './source_map';
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@ -363,14 +361,12 @@ export abstract class AbstractEmitterVisitor implements o.StatementVisitor, o.Ex
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}
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visitLocalizedString(ast: o.LocalizedString, ctx: EmitterVisitorContext): any {
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const head = serializeI18nHead(ast.metaBlock, ast.messageParts[0]);
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ctx.print(ast, '$localize `' + escapeBackticks(head.raw));
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const head = ast.serializeI18nHead();
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ctx.print(ast, '$localize `' + head.raw);
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for (let i = 1; i < ast.messageParts.length; i++) {
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ctx.print(ast, '${');
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ast.expressions[i - 1].visitExpression(this, ctx);
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ctx.print(
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ast,
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`}${escapeBackticks(serializeI18nTemplatePart(ast.placeHolderNames[i - 1], ast.messageParts[i]))}`);
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ctx.print(ast, `}${ast.serializeI18nTemplatePart(i).raw}`);
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}
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ctx.print(ast, '`');
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return null;
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@ -560,7 +556,3 @@ function _createIndent(count: number): string {
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}
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return res;
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}
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function escapeBackticks(str: string): string {
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return str.replace(/`/g, '\\`');
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}
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@ -499,8 +499,74 @@ export class LocalizedString extends Expression {
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visitExpression(visitor: ExpressionVisitor, context: any): any {
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return visitor.visitLocalizedString(this, context);
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}
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/**
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* Serialize the given `meta` and `messagePart` into "cooked" and "raw" strings that can be used
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* in a `$localize` tagged string. The format of the metadata is the same as that parsed by
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* `parseI18nMeta()`.
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*
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* @param meta The metadata to serialize
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* @param messagePart The first part of the tagged string
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*/
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serializeI18nHead(): {cooked: string, raw: string} {
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let metaBlock = this.metaBlock.description || '';
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if (this.metaBlock.meaning) {
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metaBlock = `${this.metaBlock.meaning}|${metaBlock}`;
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}
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if (this.metaBlock.customId || this.metaBlock.legacyId) {
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metaBlock = `${metaBlock}@@${this.metaBlock.customId || this.metaBlock.legacyId}`;
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}
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return createCookedRawString(metaBlock, this.messageParts[0]);
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}
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/**
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* Serialize the given `placeholderName` and `messagePart` into "cooked" and "raw" strings that
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* can be used in a `$localize` tagged string.
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*
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* @param placeholderName The placeholder name to serialize
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* @param messagePart The following message string after this placeholder
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*/
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serializeI18nTemplatePart(partIndex: number): {cooked: string, raw: string} {
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const placeholderName = this.placeHolderNames[partIndex - 1];
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const messagePart = this.messageParts[partIndex];
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return createCookedRawString(placeholderName, messagePart);
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}
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}
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const escapeSlashes = (str: string): string => str.replace(/\\/g, '\\\\');
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const escapeStartingColon = (str: string): string => str.replace(/^:/, '\\:');
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const escapeColons = (str: string): string => str.replace(/:/g, '\\:');
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const escapeForMessagePart = (str: string): string =>
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str.replace(/`/g, '\\`').replace(/\${/g, '$\\{');
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/**
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* Creates a `{cooked, raw}` object from the `metaBlock` and `messagePart`.
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*
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* The `raw` text must have various character sequences escaped:
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* * "\" would otherwise indicate that the next character is a control character.
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* * "`" and "${" are template string control sequences that would otherwise prematurely indicate
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* the end of a message part.
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* * ":" inside a metablock would prematurely indicate the end of the metablock.
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* * ":" at the start of a messagePart with no metablock would erroneously indicate the start of a
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* metablock.
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*
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* @param metaBlock Any metadata that should be prepended to the string
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* @param messagePart The message part of the string
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*/
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function createCookedRawString(metaBlock: string, messagePart: string) {
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if (metaBlock === '') {
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return {
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cooked: messagePart,
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raw: escapeForMessagePart(escapeStartingColon(escapeSlashes(messagePart)))
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};
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} else {
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return {
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cooked: `:${metaBlock}:${messagePart}`,
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raw: escapeForMessagePart(
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`:${escapeColons(escapeSlashes(metaBlock))}:${escapeSlashes(messagePart)}`)
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};
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}
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}
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export class ExternalExpr extends Expression {
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constructor(
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@ -234,50 +234,6 @@ export function parseI18nMeta(meta?: string): I18nMeta {
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return {customId, meaning, description};
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}
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/**
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* Serialize the given `meta` and `messagePart` "cooked" and "raw" strings that can be used in a
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* `$localize` tagged string. The format of the metadata is the same as that parsed by
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* `parseI18nMeta()`.
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*
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* @param meta The metadata to serialize
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* @param messagePart The first part of the tagged string
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*/
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export function serializeI18nHead(
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meta: I18nMeta, messagePart: string): {cooked: string, raw: string} {
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let metaBlock = meta.description || '';
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if (meta.meaning) {
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metaBlock = `${meta.meaning}|${metaBlock}`;
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}
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if (meta.customId || meta.legacyId) {
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metaBlock = `${metaBlock}@@${meta.customId || meta.legacyId}`;
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}
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if (metaBlock === '') {
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// There is no metaBlock, so we must ensure that any starting colon is escaped.
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return {cooked: messagePart, raw: escapeStartingColon(messagePart)};
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} else {
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return {
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cooked: `:${metaBlock}:${messagePart}`,
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raw: `:${escapeColons(metaBlock)}:${messagePart}`
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};
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}
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}
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/**
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* Serialize the given `placeholderName` and `messagePart` into strings that can be used in a
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* `$localize` tagged string.
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*
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* @param placeholderName The placeholder name to serialize
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* @param messagePart The following message string after this placeholder
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*/
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export function serializeI18nTemplatePart(placeholderName: string, messagePart: string): string {
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if (placeholderName === '') {
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// There is no placeholder name block, so we must ensure that any starting colon is escaped.
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return escapeStartingColon(messagePart);
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} else {
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return `:${placeholderName}:${messagePart}`;
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}
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}
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// Converts i18n meta information for a message (id, description, meaning)
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// to a JsDoc statement formatted as expected by the Closure compiler.
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export function i18nMetaToDocStmt(meta: I18nMeta): o.JSDocCommentStmt|null {
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@ -290,11 +246,3 @@ export function i18nMetaToDocStmt(meta: I18nMeta): o.JSDocCommentStmt|null {
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}
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return tags.length == 0 ? null : new o.JSDocCommentStmt(tags);
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}
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export function escapeStartingColon(str: string): string {
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return str.replace(/^:/, '\\:');
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}
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export function escapeColons(str: string): string {
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return str.replace(/:/g, '\\:');
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}
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@ -15,7 +15,7 @@ import {I18nContext} from '../../../src/render3/view/i18n/context';
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import {serializeI18nMessageForGetMsg} from '../../../src/render3/view/i18n/get_msg_utils';
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import {serializeIcuNode} from '../../../src/render3/view/i18n/icu_serializer';
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import {serializeI18nMessageForLocalize} from '../../../src/render3/view/i18n/localize_utils';
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import {I18nMeta, parseI18nMeta, serializeI18nHead, serializeI18nTemplatePart} from '../../../src/render3/view/i18n/meta';
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import {I18nMeta, parseI18nMeta} from '../../../src/render3/view/i18n/meta';
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import {formatI18nPlaceholderName} from '../../../src/render3/view/i18n/util';
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import {parseR3 as parse} from './util';
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@ -210,47 +210,66 @@ describe('Utils', () => {
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});
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it('serializeI18nHead()', () => {
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expect(serializeI18nHead(meta(), '')).toEqual({cooked: '', raw: ''});
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expect(serializeI18nHead(meta('', '', 'desc'), ''))
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expect(o.localizedString(meta(), [''], [], []).serializeI18nHead())
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.toEqual({cooked: '', raw: ''});
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expect(o.localizedString(meta('', '', 'desc'), [''], [], []).serializeI18nHead())
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.toEqual({cooked: ':desc:', raw: ':desc:'});
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expect(serializeI18nHead(meta('id', '', 'desc'), ''))
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expect(o.localizedString(meta('id', '', 'desc'), [''], [], []).serializeI18nHead())
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.toEqual({cooked: ':desc@@id:', raw: ':desc@@id:'});
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expect(serializeI18nHead(meta('', 'meaning', 'desc'), ''))
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expect(o.localizedString(meta('', 'meaning', 'desc'), [''], [], []).serializeI18nHead())
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.toEqual({cooked: ':meaning|desc:', raw: ':meaning|desc:'});
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expect(serializeI18nHead(meta('id', 'meaning', 'desc'), ''))
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expect(o.localizedString(meta('id', 'meaning', 'desc'), [''], [], []).serializeI18nHead())
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.toEqual({cooked: ':meaning|desc@@id:', raw: ':meaning|desc@@id:'});
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expect(serializeI18nHead(meta('id', '', ''), '')).toEqual({cooked: ':@@id:', raw: ':@@id:'});
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expect(o.localizedString(meta('id', '', ''), [''], [], []).serializeI18nHead())
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.toEqual({cooked: ':@@id:', raw: ':@@id:'});
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// Escaping colons (block markers)
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expect(serializeI18nHead(meta('id:sub_id', 'meaning', 'desc'), ''))
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expect(
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o.localizedString(meta('id:sub_id', 'meaning', 'desc'), [''], [], []).serializeI18nHead())
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.toEqual({cooked: ':meaning|desc@@id:sub_id:', raw: ':meaning|desc@@id\\:sub_id:'});
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expect(serializeI18nHead(meta('id', 'meaning:sub_meaning', 'desc'), '')).toEqual({
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cooked: ':meaning:sub_meaning|desc@@id:',
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raw: ':meaning\\:sub_meaning|desc@@id:'
|
||||
});
|
||||
expect(serializeI18nHead(meta('id', 'meaning', 'desc:sub_desc'), ''))
|
||||
expect(o.localizedString(meta('id', 'meaning:sub_meaning', 'desc'), [''], [], [])
|
||||
.serializeI18nHead())
|
||||
.toEqual(
|
||||
{cooked: ':meaning:sub_meaning|desc@@id:', raw: ':meaning\\:sub_meaning|desc@@id:'});
|
||||
expect(o.localizedString(meta('id', 'meaning', 'desc:sub_desc'), [''], [], [])
|
||||
.serializeI18nHead())
|
||||
.toEqual({cooked: ':meaning|desc:sub_desc@@id:', raw: ':meaning|desc\\:sub_desc@@id:'});
|
||||
expect(serializeI18nHead(meta('id', 'meaning', 'desc'), 'message source')).toEqual({
|
||||
cooked: ':meaning|desc@@id:message source',
|
||||
raw: ':meaning|desc@@id:message source'
|
||||
});
|
||||
expect(serializeI18nHead(meta('id', 'meaning', 'desc'), ':message source')).toEqual({
|
||||
cooked: ':meaning|desc@@id::message source',
|
||||
raw: ':meaning|desc@@id::message source'
|
||||
});
|
||||
expect(serializeI18nHead(meta('', '', ''), 'message source'))
|
||||
expect(o.localizedString(meta('id', 'meaning', 'desc'), ['message source'], [], [])
|
||||
.serializeI18nHead())
|
||||
.toEqual({
|
||||
cooked: ':meaning|desc@@id:message source',
|
||||
raw: ':meaning|desc@@id:message source'
|
||||
});
|
||||
expect(o.localizedString(meta('id', 'meaning', 'desc'), [':message source'], [], [])
|
||||
.serializeI18nHead())
|
||||
.toEqual({
|
||||
cooked: ':meaning|desc@@id::message source',
|
||||
raw: ':meaning|desc@@id::message source'
|
||||
});
|
||||
expect(o.localizedString(meta('', '', ''), ['message source'], [], []).serializeI18nHead())
|
||||
.toEqual({cooked: 'message source', raw: 'message source'});
|
||||
expect(serializeI18nHead(meta('', '', ''), ':message source'))
|
||||
expect(o.localizedString(meta('', '', ''), [':message source'], [], []).serializeI18nHead())
|
||||
.toEqual({cooked: ':message source', raw: '\\:message source'});
|
||||
});
|
||||
|
||||
it('serializeI18nPlaceholderBlock()', () => {
|
||||
expect(serializeI18nTemplatePart('', '')).toEqual('');
|
||||
expect(serializeI18nTemplatePart('abc', '')).toEqual(':abc:');
|
||||
expect(serializeI18nTemplatePart('', 'message')).toEqual('message');
|
||||
expect(serializeI18nTemplatePart('abc', 'message')).toEqual(':abc:message');
|
||||
expect(serializeI18nTemplatePart('', ':message')).toEqual('\\:message');
|
||||
expect(serializeI18nTemplatePart('abc', ':message')).toEqual(':abc::message');
|
||||
expect(o.localizedString(meta('', '', ''), ['', ''], [''], []).serializeI18nTemplatePart(1))
|
||||
.toEqual({cooked: '', raw: ''});
|
||||
expect(
|
||||
o.localizedString(meta('', '', ''), ['', ''], ['abc'], []).serializeI18nTemplatePart(1))
|
||||
.toEqual({cooked: ':abc:', raw: ':abc:'});
|
||||
expect(o.localizedString(meta('', '', ''), ['', 'message'], [''], [])
|
||||
.serializeI18nTemplatePart(1))
|
||||
.toEqual({cooked: 'message', raw: 'message'});
|
||||
expect(o.localizedString(meta('', '', ''), ['', 'message'], ['abc'], [])
|
||||
.serializeI18nTemplatePart(1))
|
||||
.toEqual({cooked: ':abc:message', raw: ':abc:message'});
|
||||
expect(o.localizedString(meta('', '', ''), ['', ':message'], [''], [])
|
||||
.serializeI18nTemplatePart(1))
|
||||
.toEqual({cooked: ':message', raw: '\\:message'});
|
||||
expect(o.localizedString(meta('', '', ''), ['', ':message'], ['abc'], [])
|
||||
.serializeI18nTemplatePart(1))
|
||||
.toEqual({cooked: ':abc::message', raw: ':abc::message'});
|
||||
});
|
||||
|
||||
function meta(customId?: string, meaning?: string, description?: string): I18nMeta {
|
||||
|
|
|
|||
Loading…
Reference in New Issue