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ccd7e71a47
Several imported types and values from `@angular-devkit/core` could be removed while still maintaining the same functionality. This further reduces the schematics direct dependence on the `@angular-devkit/core` package.
20 lines
715 B
TypeScript
20 lines
715 B
TypeScript
/**
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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.io/license
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*/
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import { SchematicsException } from '@angular-devkit/schematics';
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// Must start with a letter, and must contain only alphanumeric characters or dashes.
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// When adding a dash the segment after the dash must also start with a letter.
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export const htmlSelectorRe = /^[a-zA-Z][.0-9a-zA-Z]*(:?-[a-zA-Z][.0-9a-zA-Z]*)*$/;
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export function validateHtmlSelector(selector: string): void {
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if (selector && !htmlSelectorRe.test(selector)) {
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throw new SchematicsException(`Selector (${selector}) is invalid.`);
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}
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}
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