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122 lines
5.1 KiB
Swift
122 lines
5.1 KiB
Swift
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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import Foundation
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public extension UnicodeScalar {
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class EmojiRange {
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// rangeStart and rangeEnd are inclusive.
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let rangeStart: UInt32
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let rangeEnd: UInt32
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// MARK: - Initializers
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init(rangeStart: UInt32, rangeEnd: UInt32) {
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self.rangeStart = rangeStart
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self.rangeEnd = rangeEnd
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}
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}
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// From:
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// https://www.unicode.org/Public/emoji/
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// Current Version:
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// https://www.unicode.org/Public/emoji/6.0/emoji-data.txt
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//
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// These ranges can be code-generated using:
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//
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// * Scripts/emoji-data.txt
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// * Scripts/emoji_ranges.py
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static let kEmojiRanges = [
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// NOTE: Don't treat Pound Sign # as Jumbomoji.
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// EmojiRange(rangeStart:0x23, rangeEnd:0x23),
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// NOTE: Don't treat Asterisk * as Jumbomoji.
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// EmojiRange(rangeStart:0x2A, rangeEnd:0x2A),
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// NOTE: Don't treat Digits 0..9 as Jumbomoji.
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// EmojiRange(rangeStart:0x30, rangeEnd:0x39),
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// NOTE: Don't treat Copyright Symbol © as Jumbomoji.
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// EmojiRange(rangeStart:0xA9, rangeEnd:0xA9),
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// NOTE: Don't treat Trademark Sign ® as Jumbomoji.
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// EmojiRange(rangeStart:0xAE, rangeEnd:0xAE),
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EmojiRange(rangeStart: 0x200D, rangeEnd: 0x200D),
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EmojiRange(rangeStart: 0x203C, rangeEnd: 0x203C),
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EmojiRange(rangeStart: 0x2049, rangeEnd: 0x2049),
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EmojiRange(rangeStart: 0x20D0, rangeEnd: 0x20FF),
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EmojiRange(rangeStart: 0x2122, rangeEnd: 0x2122),
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EmojiRange(rangeStart: 0x2139, rangeEnd: 0x2139),
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EmojiRange(rangeStart: 0x2194, rangeEnd: 0x2199),
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EmojiRange(rangeStart: 0x21A9, rangeEnd: 0x21AA),
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EmojiRange(rangeStart: 0x231A, rangeEnd: 0x231B),
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EmojiRange(rangeStart: 0x2328, rangeEnd: 0x2328),
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EmojiRange(rangeStart: 0x2388, rangeEnd: 0x2388),
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EmojiRange(rangeStart: 0x23CF, rangeEnd: 0x23CF),
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EmojiRange(rangeStart: 0x23E9, rangeEnd: 0x23F3),
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EmojiRange(rangeStart: 0x23F8, rangeEnd: 0x23FA),
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EmojiRange(rangeStart: 0x24C2, rangeEnd: 0x24C2),
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EmojiRange(rangeStart: 0x25AA, rangeEnd: 0x25AB),
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EmojiRange(rangeStart: 0x25B6, rangeEnd: 0x25B6),
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EmojiRange(rangeStart: 0x25C0, rangeEnd: 0x25C0),
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EmojiRange(rangeStart: 0x25FB, rangeEnd: 0x25FE),
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EmojiRange(rangeStart: 0x2600, rangeEnd: 0x27BF),
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EmojiRange(rangeStart: 0x2934, rangeEnd: 0x2935),
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EmojiRange(rangeStart: 0x2B05, rangeEnd: 0x2B07),
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EmojiRange(rangeStart: 0x2B1B, rangeEnd: 0x2B1C),
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EmojiRange(rangeStart: 0x2B50, rangeEnd: 0x2B50),
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EmojiRange(rangeStart: 0x2B55, rangeEnd: 0x2B55),
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EmojiRange(rangeStart: 0x3030, rangeEnd: 0x3030),
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EmojiRange(rangeStart: 0x303D, rangeEnd: 0x303D),
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EmojiRange(rangeStart: 0x3297, rangeEnd: 0x3297),
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EmojiRange(rangeStart: 0x3299, rangeEnd: 0x3299),
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EmojiRange(rangeStart: 0xFE00, rangeEnd: 0xFE0F),
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EmojiRange(rangeStart: 0x1F000, rangeEnd: 0x1F0FF),
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EmojiRange(rangeStart: 0x1F10D, rangeEnd: 0x1F10F),
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EmojiRange(rangeStart: 0x1F12F, rangeEnd: 0x1F12F),
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EmojiRange(rangeStart: 0x1F16C, rangeEnd: 0x1F171),
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EmojiRange(rangeStart: 0x1F17E, rangeEnd: 0x1F17F),
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EmojiRange(rangeStart: 0x1F18E, rangeEnd: 0x1F18E),
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EmojiRange(rangeStart: 0x1F191, rangeEnd: 0x1F19A),
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EmojiRange(rangeStart: 0x1F1AD, rangeEnd: 0x1F1FF),
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EmojiRange(rangeStart: 0x1F201, rangeEnd: 0x1F20F),
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EmojiRange(rangeStart: 0x1F21A, rangeEnd: 0x1F21A),
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EmojiRange(rangeStart: 0x1F22F, rangeEnd: 0x1F22F),
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EmojiRange(rangeStart: 0x1F232, rangeEnd: 0x1F23A),
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EmojiRange(rangeStart: 0x1F23C, rangeEnd: 0x1F23F),
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EmojiRange(rangeStart: 0x1F249, rangeEnd: 0x1F64F),
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EmojiRange(rangeStart: 0x1F680, rangeEnd: 0x1F6FF),
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EmojiRange(rangeStart: 0x1F774, rangeEnd: 0x1F77F),
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EmojiRange(rangeStart: 0x1F7D5, rangeEnd: 0x1F7FF),
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EmojiRange(rangeStart: 0x1F80C, rangeEnd: 0x1F80F),
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EmojiRange(rangeStart: 0x1F848, rangeEnd: 0x1F84F),
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EmojiRange(rangeStart: 0x1F85A, rangeEnd: 0x1F85F),
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EmojiRange(rangeStart: 0x1F888, rangeEnd: 0x1F88F),
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EmojiRange(rangeStart: 0x1F8AE, rangeEnd: 0x1FFFD),
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EmojiRange(rangeStart: 0xE0020, rangeEnd: 0xE007F)
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]
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var isEmoji: Bool {
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// Binary search
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var left: Int = 0
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var right = Int(UnicodeScalar.kEmojiRanges.count - 1)
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while true {
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let mid = (left + right) / 2
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let midRange = UnicodeScalar.kEmojiRanges[mid]
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if value < midRange.rangeStart {
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if mid == left {
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return false
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}
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right = mid - 1
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} else if value > midRange.rangeEnd {
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if mid == right {
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return false
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}
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left = mid + 1
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} else {
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return true
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}
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}
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}
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var isZeroWidthJoiner: Bool {
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return value == 8205
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}
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}
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