@angular/compiler
Version:
Angular - the compiler library
42 lines • 6.08 kB
JavaScript
/**
* @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
*/
export class StyleWithImports {
constructor(style, styleUrls) {
this.style = style;
this.styleUrls = styleUrls;
}
}
export function isStyleUrlResolvable(url) {
if (url == null || url.length === 0 || url[0] == '/')
return false;
const schemeMatch = url.match(URL_WITH_SCHEMA_REGEXP);
return schemeMatch === null || schemeMatch[1] == 'package' || schemeMatch[1] == 'asset';
}
/**
* Rewrites stylesheets by resolving and removing the @import urls that
* are either relative or don't have a `package:` scheme
*/
export function extractStyleUrls(resolver, baseUrl, cssText) {
const foundUrls = [];
const modifiedCssText = cssText.replace(CSS_STRIPPABLE_COMMENT_REGEXP, '')
.replace(CSS_IMPORT_REGEXP, (...m) => {
const url = m[1] || m[2];
if (!isStyleUrlResolvable(url)) {
// Do not attempt to resolve non-package absolute URLs with URI
// scheme
return m[0];
}
foundUrls.push(resolver.resolve(baseUrl, url));
return '';
});
return new StyleWithImports(modifiedCssText, foundUrls);
}
const CSS_IMPORT_REGEXP = /@import\s+(?:url\()?\s*(?:(?:['"]([^'"]*))|([^;\)\s]*))[^;]*;?/g;
const CSS_STRIPPABLE_COMMENT_REGEXP = /\/\*(?!#\s*(?:sourceURL|sourceMappingURL)=)[\s\S]+?\*\//g;
const URL_WITH_SCHEMA_REGEXP = /^([^:/?#]+):/;
//# sourceMappingURL=data:application/json;base64,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