A small menubar app that allows you to switch between R versions quickly (if you have multiple versions of R framework installed).
https://rud.is/rswitch
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67 lines
2.1 KiB
67 lines
2.1 KiB
//
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// UnicodeScalar.swift
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// SwiftSoup
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//
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// Created by Nabil Chatbi on 14/11/16.
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// Copyright © 2016 Nabil Chatbi. All rights reserved.
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//
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import Foundation
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private let uppercaseSet = CharacterSet.uppercaseLetters
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private let lowercaseSet = CharacterSet.lowercaseLetters
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private let alphaSet = CharacterSet.letters
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private let alphaNumericSet = CharacterSet.alphanumerics
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private let symbolSet = CharacterSet.symbols
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private let digitSet = CharacterSet.decimalDigits
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extension UnicodeScalar {
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public static let Ampersand: UnicodeScalar = "&"
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public static let LessThan: UnicodeScalar = "<"
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public static let GreaterThan: UnicodeScalar = ">"
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public static let Space: UnicodeScalar = " "
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public static let BackslashF: UnicodeScalar = UnicodeScalar(12)
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public static let BackslashT: UnicodeScalar = "\t"
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public static let BackslashN: UnicodeScalar = "\n"
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public static let BackslashR: UnicodeScalar = "\r"
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public static let Slash: UnicodeScalar = "/"
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public static let FormFeed: UnicodeScalar = "\u{000B}"// Form Feed
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public static let VerticalTab: UnicodeScalar = "\u{000C}"// vertical tab
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func isMemberOfCharacterSet(_ set: CharacterSet) -> Bool {
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return set.contains(self)
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}
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/// True for any space character, and the control characters \t, \n, \r, \f, \v.
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var isWhitespace: Bool {
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switch self {
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case UnicodeScalar.Space, UnicodeScalar.BackslashT, UnicodeScalar.BackslashN, UnicodeScalar.BackslashR, UnicodeScalar.BackslashF: return true
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case UnicodeScalar.FormFeed, UnicodeScalar.VerticalTab: return true // Form Feed, vertical tab
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default: return false
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}
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}
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/// `true` if `self` normalized contains a single code unit that is in the categories of Uppercase and Titlecase Letters.
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var isUppercase: Bool {
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return isMemberOfCharacterSet(uppercaseSet)
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}
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/// `true` if `self` normalized contains a single code unit that is in the category of Lowercase Letters.
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var isLowercase: Bool {
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return isMemberOfCharacterSet(lowercaseSet)
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}
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var uppercase: UnicodeScalar {
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let str = String(self).uppercased()
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return str.unicodeScalar(0)
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}
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}
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