import Foundation
let pattern = #"(\v)"#
let regex = try! NSRegularExpression(pattern: pattern)
let testString = #"""
line one⋮
line twoimport { CustomCacheKey } from '@layer0/core/router'
router.get('/some/path', ({ cache }) => {
cache({
key: new CustomCacheKey().addCookie('language').addCookie('currency'),
// Other options...
})
})import { CustomCacheKey } from '@layer0/core/router'
router.get('/some/path', ({ cache }) => {
cache({
browser: {
// Sets the cache-control: maxage=n header sent to the browser. To prevent the browser from caching this route
// set maxAgeSeconds: 0
maxAgeSeconds: 0,
// Sends a non-standard header `x-sw-cache-control: n` that you can use to control caching your service worker.
// Note that service workers do not understand this header by default, so you would need to add code to your service
// worker to support it
serviceWorkerSeconds: 60 * 60,
},
edge: {
// Sets the TTL for a response in Layer0's edge cache
maxAgeSeconds: 60 * 60 * 24,
// Sets the amount of time a stale response will be served from the cache. When a stale response is sent, Layer0
// will simultaneously fetch a new response to serve subsequent requests.
// Using stale-while-revalidate helps raise your effective cache hit rate to near 100%.
staleWhileRevalidateSeconds: 60 * 60, // serve stale responses for up to 1 hour while fetching a new response
// And many other options
},
// Optionally customizes the cache key for both edge and browser
key: new CustomCacheKey()
.addBrowser() // Split cache by browser type
.addCookie('some-cookie'), // Split cache by some-cookie cookie
})
})router.get('/scripts/:file', ({ serveStatic }) => {
serveStatic('path/to/scripts', {
permanent: true, // ensure that files are permanently accessible, even after a new version of the site has been deployed.
exclude: ['some-non-versioned-file.js'], // you can exclude specific files from being served permanently. You should do this for any files that do not have a hash of the content in the name.
})
})
"""#
let stringRange = NSRange(location: 0, length: testString.utf16.count)
if let firstMatch = regex.firstMatch(in: testString, range: stringRange) {
let result: [String] = (1 ..< firstMatch.numberOfRanges).map { (testString as NSString).substring(with: firstMatch.range(at: $0)) }
print(result)
} else {
print("No matches were found.")
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Swift 5.2, please visit: https://developer.apple.com/documentation/foundation/nsregularexpression