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71 lines
1.8 KiB
Swift
71 lines
1.8 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2022 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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// Normalization tests are currently only avaible on Darwin, awaiting a sensible
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// file API...
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#if _runtime(_ObjC)
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import Foundation
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func parseGraphemeBreakTests(
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_ data: String,
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into result: inout [(String, Int)]
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) {
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for line in data.split(separator: "\n") {
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// Only look at actual tests
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guard line.hasPrefix("÷") else {
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continue
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}
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let info = line.split(separator: "#")
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let components = info[0].split(separator: " ")
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var string = ""
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var count = 0
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for i in components.indices {
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guard i != 0 else {
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continue
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}
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let scalar: Unicode.Scalar
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// If we're an odd index, this is a scalar.
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if i & 0x1 == 1 {
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scalar = Unicode.Scalar(UInt32(components[i], radix: 16)!)!
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string.unicodeScalars.append(scalar)
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} else {
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// Otherwise, it is a grapheme breaking operator.
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// If this is a break, record the +1 count. Otherwise it is × which is
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// not a break.
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if components[i] == "÷" {
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count += 1
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}
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}
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}
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result.append((string, count))
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}
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}
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public let graphemeBreakTests: [(String, Int)] = {
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var result: [(String, Int)] = []
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let testFile = readInputFile("GraphemeBreakTest.txt")
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parseGraphemeBreakTests(testFile, into: &result)
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return result
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}()
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#endif
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