@angular/service-worker
Version:
Angular - service worker tooling!
48 lines • 5.21 kB
JavaScript
/**
* @license
* Copyright Google LLC 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
*/
const QUESTION_MARK = '[^/]';
const WILD_SINGLE = '[^/]*';
const WILD_OPEN = '(?:.+\\/)?';
const TO_ESCAPE_BASE = [
{ replace: /\./g, with: '\\.' },
{ replace: /\+/g, with: '\\+' },
{ replace: /\*/g, with: WILD_SINGLE },
];
const TO_ESCAPE_WILDCARD_QM = [
...TO_ESCAPE_BASE,
{ replace: /\?/g, with: QUESTION_MARK },
];
const TO_ESCAPE_LITERAL_QM = [
...TO_ESCAPE_BASE,
{ replace: /\?/g, with: '\\?' },
];
export function globToRegex(glob, literalQuestionMark = false) {
const toEscape = literalQuestionMark ? TO_ESCAPE_LITERAL_QM : TO_ESCAPE_WILDCARD_QM;
const segments = glob.split('/').reverse();
let regex = '';
while (segments.length > 0) {
const segment = segments.pop();
if (segment === '**') {
if (segments.length > 0) {
regex += WILD_OPEN;
}
else {
regex += '.*';
}
}
else {
const processed = toEscape.reduce((segment, escape) => segment.replace(escape.replace, escape.with), segment);
regex += processed;
if (segments.length > 0) {
regex += '\\/';
}
}
}
return regex;
}
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