90 lines
3.9 KiB
Swift
Executable File
90 lines
3.9 KiB
Swift
Executable File
//
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// Created by Mike Griebling on 2022-12-31.
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// Translated from an Objective-C implementation by Kostub Deshmukh.
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//
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// This software may be modified and distributed under the terms of the
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// MIT license. See the LICENSE file for details.
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//
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import Foundation
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public struct UnicodeSymbol {
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static let multiplication = "\u{00D7}"
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static let division = "\u{00F7}"
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static let fractionSlash = "\u{2044}"
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static let whiteSquare = "\u{25A1}"
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static let blackSquare = "\u{25A0}"
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static let lessEqual = "\u{2264}"
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static let greaterEqual = "\u{2265}"
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static let notEqual = "\u{2260}"
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static let squareRoot = "\u{221A}" // \sqrt
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static let cubeRoot = "\u{221B}"
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static let infinity = "\u{221E}" // \infty
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static let angle = "\u{2220}" // \angle
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static let degree = "\u{00B0}" // \circ
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static let capitalGreekStart = UInt32(0x0391)
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static let capitalGreekEnd = UInt32(0x03A9)
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static let lowerGreekStart = UInt32(0x03B1)
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static let lowerGreekEnd = UInt32(0x03C9)
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static let planksConstant = UInt32(0x210e)
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static let lowerItalicStart = UInt32(0x1D44E)
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static let capitalItalicStart = UInt32(0x1D434)
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static let greekLowerItalicStart = UInt32(0x1D6FC)
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static let greekCapitalItalicStart = UInt32(0x1D6E2)
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static let greekSymbolItalicStart = UInt32(0x1D716)
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static let mathCapitalBoldStart = UInt32(0x1D400)
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static let mathLowerBoldStart = UInt32(0x1D41A)
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static let greekCapitalBoldStart = UInt32(0x1D6A8)
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static let greekLowerBoldStart = UInt32(0x1D6C2)
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static let greekSymbolBoldStart = UInt32(0x1D6DC)
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static let numberBoldStart = UInt32(0x1D7CE)
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static let mathCapitalBoldItalicStart = UInt32(0x1D468)
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static let mathLowerBoldItalicStart = UInt32(0x1D482)
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static let greekCapitalBoldItalicStart = UInt32(0x1D71C)
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static let greekLowerBoldItalicStart = UInt32(0x1D736)
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static let greekSymbolBoldItalicStart = UInt32(0x1D750)
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static let mathCapitalScriptStart = UInt32(0x1D49C)
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static let mathCapitalTTStart = UInt32(0x1D670)
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static let mathLowerTTStart = UInt32(0x1D68A)
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static let numberTTStart = UInt32(0x1D7F6)
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static let mathCapitalSansSerifStart = UInt32(0x1D5A0)
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static let mathLowerSansSerifStart = UInt32(0x1D5BA)
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static let numberSansSerifStart = UInt32(0x1D7E2)
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static let mathCapitalFrakturStart = UInt32(0x1D504)
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static let mathLowerFrakturStart = UInt32(0x1D51E)
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static let mathCapitalBlackboardStart = UInt32(0x1D538)
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static let mathLowerBlackboardStart = UInt32(0x1D552)
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static let numberBlackboardStart = UInt32(0x1D7D8)
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}
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extension Character {
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var utf32Char: UTF32Char { self.unicodeScalars.map { $0.value }.reduce(0, +) }
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var isLowerEnglish : Bool { self >= "a" && self <= "z" }
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var isUpperEnglish : Bool { self >= "A" && self <= "Z" }
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var isNumber : Bool { self >= "0" && self <= "9" }
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var isLowerGreek : Bool {
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let uch = self.utf32Char
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return uch >= UnicodeSymbol.lowerGreekStart && uch <= UnicodeSymbol.lowerGreekEnd
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}
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var isCapitalGreek : Bool {
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let uch = self.utf32Char
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return uch >= UnicodeSymbol.capitalGreekStart && uch <= UnicodeSymbol.capitalGreekEnd
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}
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var greekSymbolOrder : UInt32? {
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let greekSymbols : [UTF32Char] = [0x03F5, 0x03D1, 0x03F0, 0x03D5, 0x03F1, 0x03D6]
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let index = greekSymbols.firstIndex(of: self.utf32Char)
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if let pos = index { return UInt32(pos) }
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return nil
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}
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var isGreekSymbol : Bool { self.greekSymbolOrder != nil }
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}
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