50 lines
1.7 KiB
Swift
50 lines
1.7 KiB
Swift
// (c) 2021 and onwards The vChewing Project (MIT-NTL License).
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// StringView Ranges extension by (c) 2022 and onwards Isaac Xen (MIT License).
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// ====================
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// This code is released under the MIT license (SPDX-License-Identifier: MIT)
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// ... with NTL restriction stating that:
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// No trademark license is granted to use the trade names, trademarks, service
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// marks, or product names of Contributor, except as required to fulfill notice
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// requirements defined in MIT License.
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import Foundation
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// MARK: - StringView Ranges Extension MK2
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// Credit: Isaac Xen (MK1) & Shiki Suen (MK2)
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extension String {
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/// 分析傳入的原始辭典檔案（UTF-8 TXT）的資料。
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/// - Parameters:
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/// - separator: 行內單元分隔符。
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/// - task: 要執行的外包任務。
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func parse(
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splitee separator: Element,
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task: @escaping (_ theRange: Range<String.Index>) -> Void
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) {
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var startIndex = startIndex
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split(separator: separator).forEach { substring in
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let theRange = range(of: substring, range: startIndex ..< endIndex)
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guard let theRange = theRange else { return }
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task(theRange)
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startIndex = theRange.upperBound
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}
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}
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}
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// MARK: - StringView Ranges Extension MK1 Backup (by Isaac Xen)
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// This is only for reference and is not used in this assembly.
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private extension String {
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func ranges(splitBy separator: Element) -> [Range<String.Index>] {
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var startIndex = startIndex
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return split(separator: separator).reduce(into: []) { ranges, substring in
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_ = range(of: substring, range: startIndex ..< endIndex).map { range in
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ranges.append(range)
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startIndex = range.upperBound
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}
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}
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}
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}
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