27 lines
734 B
JavaScript
27 lines
734 B
JavaScript
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const packagePathnameFormat = /^\/((?:@[^/@]+\/)?[^/@]+)(?:@([^/]+))?(\/.*)?$/;
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export default function parsePackagePathname(pathname) {
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try {
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pathname = decodeURIComponent(pathname);
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} catch (error) {
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return null;
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}
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const match = packagePathnameFormat.exec(pathname);
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// Disallow invalid pathnames.
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if (match == null) return null;
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const packageName = match[1];
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const packageVersion = match[2] || 'latest';
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const filename = (match[3] || '').replace(/\/\/+/g, '/');
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return {
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// If the pathname is /@scope/name@version/file.js:
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packageName, // @scope/name
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packageVersion, // version
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packageSpec: `${packageName}@${packageVersion}`, // @scope/name@version
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filename // /file.js
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};
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}
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