22 lines
717 B
Swift
22 lines
717 B
Swift
import Foundation
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func encode(_ scalar: UnicodeScalar) -> Data {
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return Data(String(scalar).utf8)
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}
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func decode(_ data: Data) -> UnicodeScalar? {
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guard let string = String(data: data, encoding: .utf8) else {
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assertionFailure("Failed to convert data to a valid String")
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return nil
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}
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assert(string.unicodeScalars.count == 1, "Data should contain one scalar!")
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return string.unicodeScalars.first
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}
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for scalar in "AöЖ€𝄞".unicodeScalars {
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let bytes = encode(scalar)
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let formattedBytes = bytes.map({ String($0, radix: 16)}).joined(separator: " ")
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let decoded = decode(bytes)!
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print("character: \(decoded), code point: U+\(String(scalar.value, radix: 16)), \tutf-8: \(formattedBytes)")
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}
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