59 lines
2.2 KiB
Swift
59 lines
2.2 KiB
Swift
//
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// Copyright (c) 2023 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the Software), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import Foundation
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open class DefaultRegexPlaceholderGenerator: RegexPlaceholderGenerator {
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public init() {}
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open func generatePlaceholder(matrixOfSymbols: [[Character]]) -> String {
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var placeholderStringBuilder = String()
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var indexes = [Array<Character>: Int]()
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matrixOfSymbols.forEach { listOfSymbols in
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indexes[listOfSymbols] = 0
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}
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matrixOfSymbols.filter { !$0.isEmpty }.forEach { listOfSymbols in
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if listOfSymbols.count == 1 {
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placeholderStringBuilder.append(listOfSymbols[0])
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return
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}
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if let index = indexes[listOfSymbols] {
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var newIndex = index
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if listOfSymbols.count <= newIndex {
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newIndex = 0
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}
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placeholderStringBuilder.append(listOfSymbols[newIndex])
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newIndex += 1
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indexes[listOfSymbols] = newIndex
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}
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}
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return placeholderStringBuilder
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}
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}
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