| "use strict"; |
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| const isBrowser = (typeof window !== 'undefined') && (window.window === window) && window.navigator |
| const cwd = isBrowser ? window.location.href : process.cwd () |
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| const urlRegexp = new RegExp ("^((https|http)://)?[a-z0-9A-Z]{3}\.[a-z0-9A-Z][a-z0-9A-Z]{0,61}?[a-z0-9A-Z]\.com|net|cn|cc (:s[0-9]{1-4})?/$") |
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| const path = module.exports = { |
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| concat (a, b) { |
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| const a_endsWithSlash = (a[a.length - 1] === '/'), |
| b_startsWithSlash = (b[0] === '/') |
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| return a + ((a_endsWithSlash || b_startsWithSlash) ? '' : '/') + |
| ((a_endsWithSlash && b_startsWithSlash) ? b.substring (1) : b) |
| }, |
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| resolve (x) { |
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| if (path.isAbsolute (x)) { |
| return path.normalize (x) } |
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| return path.normalize (path.concat (cwd, x)) |
| }, |
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| normalize (x) { |
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| let output = [], |
| skip = 0 |
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| x.split ('/').reverse ().filter (x => x !== '.').forEach (x => { |
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| if (x === '..') { skip++ } |
| else if (skip === 0) { output.push (x) } |
| else { skip-- } |
| }) |
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| const result = output.reverse ().join ('/') |
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| return ((isBrowser && (result[0] === '/')) ? result[1] === '/' ? window.location.protocol : window.location.origin : '') + result |
| }, |
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| isData: x => x.indexOf ('data:') === 0, |
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| isURL: x => urlRegexp.test (x), |
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| isAbsolute: x => (x[0] === '/') || /^[^\/]*:/.test (x), |
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| relativeToFile (a, b) { |
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| return (path.isData (a) || path.isAbsolute (b)) ? |
| path.normalize (b) : |
| path.normalize (path.concat (a.split ('/').slice (0, -1).join ('/'), b)) |
| } |
| } |
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