36 lines
829 B
Swift
36 lines
829 B
Swift
//
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// Data+internal.swift
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// ZcashLightClientKit
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//
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// Created by Francisco Gindre on 4/23/20.
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//
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import Foundation
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extension String {
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func toTxIdString() -> String {
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var id = ""
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self.reversed().pairs
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.map {
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$0.reversed()
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}
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.forEach { reversed in
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id.append(String(reversed))
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}
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return id
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}
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}
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extension Collection {
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var pairs: [SubSequence] {
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var startIndex = self.startIndex
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let count = self.count
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let halving = count / 2 + count % 2
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return (0..<halving).map { _ in
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let endIndex = index(startIndex, offsetBy: 2, limitedBy: self.endIndex) ?? self.endIndex
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defer { startIndex = endIndex }
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return self[startIndex..<endIndex]
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}
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}
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}
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