65 lines
1.8 KiB
Swift
65 lines
1.8 KiB
Swift
//
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// Extensions.swift
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//
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//
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// Created by Thibaut Schmitt on 13/12/2021.
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//
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import Foundation
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// MARK: - String
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public extension String {
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func removeCharacters(from forbiddenChars: CharacterSet) -> String {
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let passed = self.unicodeScalars.filter { !forbiddenChars.contains($0) }
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return String(String.UnicodeScalarView(passed))
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}
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func removeCharacters(from: String) -> String {
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return removeCharacters(from: CharacterSet(charactersIn: from))
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}
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func removeTrailingWhitespace() -> String {
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var newString = self
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while newString.last?.isWhitespace == true {
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newString = String(newString.dropLast())
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}
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return newString
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}
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func colorComponent() -> (alpha: String, red: String, green: String, blue: String) {
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var alpha: String = "FF"
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var red: String
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var green: String
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var blue: String
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var colorClean = self
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.replacingOccurrences(of: "#", with: "")
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.replacingOccurrences(of: "0x", with: "")
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if colorClean.count == 8 {
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alpha = String(colorClean.prefix(2))
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colorClean = String(colorClean.dropFirst(2))
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}
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red = String(colorClean.prefix(2))
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colorClean = String(colorClean.dropFirst(2))
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green = String(colorClean.prefix(2))
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colorClean = String(colorClean.dropFirst(2))
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blue = String(colorClean.prefix(2))
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return (alpha: alpha, red: red, green: green, blue: blue)
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}
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}
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// MARK: - Sequence
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extension Sequence where Iterator.Element: Hashable {
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public func unique() -> [Iterator.Element] {
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var seen: [Iterator.Element: Bool] = [:]
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return self.filter { seen.updateValue(true, forKey: $0) == nil }
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}
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}
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