mirror of https://github.com/oxen-io/session-ios
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
122 lines
5.1 KiB
Swift
122 lines
5.1 KiB
Swift
3 years ago
|
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
|
||
|
|
||
|
import Foundation
|
||
|
|
||
|
public extension UnicodeScalar {
|
||
|
class EmojiRange {
|
||
|
// rangeStart and rangeEnd are inclusive.
|
||
|
let rangeStart: UInt32
|
||
|
let rangeEnd: UInt32
|
||
|
|
||
|
// MARK: - Initializers
|
||
|
|
||
|
init(rangeStart: UInt32, rangeEnd: UInt32) {
|
||
|
self.rangeStart = rangeStart
|
||
|
self.rangeEnd = rangeEnd
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// From:
|
||
|
// https://www.unicode.org/Public/emoji/
|
||
|
// Current Version:
|
||
|
// https://www.unicode.org/Public/emoji/6.0/emoji-data.txt
|
||
|
//
|
||
|
// These ranges can be code-generated using:
|
||
|
//
|
||
|
// * Scripts/emoji-data.txt
|
||
|
// * Scripts/emoji_ranges.py
|
||
|
static let kEmojiRanges = [
|
||
|
// NOTE: Don't treat Pound Sign # as Jumbomoji.
|
||
|
// EmojiRange(rangeStart:0x23, rangeEnd:0x23),
|
||
|
// NOTE: Don't treat Asterisk * as Jumbomoji.
|
||
|
// EmojiRange(rangeStart:0x2A, rangeEnd:0x2A),
|
||
|
// NOTE: Don't treat Digits 0..9 as Jumbomoji.
|
||
|
// EmojiRange(rangeStart:0x30, rangeEnd:0x39),
|
||
|
// NOTE: Don't treat Copyright Symbol © as Jumbomoji.
|
||
|
// EmojiRange(rangeStart:0xA9, rangeEnd:0xA9),
|
||
|
// NOTE: Don't treat Trademark Sign ® as Jumbomoji.
|
||
|
// EmojiRange(rangeStart:0xAE, rangeEnd:0xAE),
|
||
|
EmojiRange(rangeStart: 0x200D, rangeEnd: 0x200D),
|
||
|
EmojiRange(rangeStart: 0x203C, rangeEnd: 0x203C),
|
||
|
EmojiRange(rangeStart: 0x2049, rangeEnd: 0x2049),
|
||
|
EmojiRange(rangeStart: 0x20D0, rangeEnd: 0x20FF),
|
||
|
EmojiRange(rangeStart: 0x2122, rangeEnd: 0x2122),
|
||
|
EmojiRange(rangeStart: 0x2139, rangeEnd: 0x2139),
|
||
|
EmojiRange(rangeStart: 0x2194, rangeEnd: 0x2199),
|
||
|
EmojiRange(rangeStart: 0x21A9, rangeEnd: 0x21AA),
|
||
|
EmojiRange(rangeStart: 0x231A, rangeEnd: 0x231B),
|
||
|
EmojiRange(rangeStart: 0x2328, rangeEnd: 0x2328),
|
||
|
EmojiRange(rangeStart: 0x2388, rangeEnd: 0x2388),
|
||
|
EmojiRange(rangeStart: 0x23CF, rangeEnd: 0x23CF),
|
||
|
EmojiRange(rangeStart: 0x23E9, rangeEnd: 0x23F3),
|
||
|
EmojiRange(rangeStart: 0x23F8, rangeEnd: 0x23FA),
|
||
|
EmojiRange(rangeStart: 0x24C2, rangeEnd: 0x24C2),
|
||
|
EmojiRange(rangeStart: 0x25AA, rangeEnd: 0x25AB),
|
||
|
EmojiRange(rangeStart: 0x25B6, rangeEnd: 0x25B6),
|
||
|
EmojiRange(rangeStart: 0x25C0, rangeEnd: 0x25C0),
|
||
|
EmojiRange(rangeStart: 0x25FB, rangeEnd: 0x25FE),
|
||
|
EmojiRange(rangeStart: 0x2600, rangeEnd: 0x27BF),
|
||
|
EmojiRange(rangeStart: 0x2934, rangeEnd: 0x2935),
|
||
|
EmojiRange(rangeStart: 0x2B05, rangeEnd: 0x2B07),
|
||
|
EmojiRange(rangeStart: 0x2B1B, rangeEnd: 0x2B1C),
|
||
|
EmojiRange(rangeStart: 0x2B50, rangeEnd: 0x2B50),
|
||
|
EmojiRange(rangeStart: 0x2B55, rangeEnd: 0x2B55),
|
||
|
EmojiRange(rangeStart: 0x3030, rangeEnd: 0x3030),
|
||
|
EmojiRange(rangeStart: 0x303D, rangeEnd: 0x303D),
|
||
|
EmojiRange(rangeStart: 0x3297, rangeEnd: 0x3297),
|
||
|
EmojiRange(rangeStart: 0x3299, rangeEnd: 0x3299),
|
||
|
EmojiRange(rangeStart: 0xFE00, rangeEnd: 0xFE0F),
|
||
|
EmojiRange(rangeStart: 0x1F000, rangeEnd: 0x1F0FF),
|
||
|
EmojiRange(rangeStart: 0x1F10D, rangeEnd: 0x1F10F),
|
||
|
EmojiRange(rangeStart: 0x1F12F, rangeEnd: 0x1F12F),
|
||
|
EmojiRange(rangeStart: 0x1F16C, rangeEnd: 0x1F171),
|
||
|
EmojiRange(rangeStart: 0x1F17E, rangeEnd: 0x1F17F),
|
||
|
EmojiRange(rangeStart: 0x1F18E, rangeEnd: 0x1F18E),
|
||
|
EmojiRange(rangeStart: 0x1F191, rangeEnd: 0x1F19A),
|
||
|
EmojiRange(rangeStart: 0x1F1AD, rangeEnd: 0x1F1FF),
|
||
|
EmojiRange(rangeStart: 0x1F201, rangeEnd: 0x1F20F),
|
||
|
EmojiRange(rangeStart: 0x1F21A, rangeEnd: 0x1F21A),
|
||
|
EmojiRange(rangeStart: 0x1F22F, rangeEnd: 0x1F22F),
|
||
|
EmojiRange(rangeStart: 0x1F232, rangeEnd: 0x1F23A),
|
||
|
EmojiRange(rangeStart: 0x1F23C, rangeEnd: 0x1F23F),
|
||
|
EmojiRange(rangeStart: 0x1F249, rangeEnd: 0x1F64F),
|
||
|
EmojiRange(rangeStart: 0x1F680, rangeEnd: 0x1F6FF),
|
||
|
EmojiRange(rangeStart: 0x1F774, rangeEnd: 0x1F77F),
|
||
|
EmojiRange(rangeStart: 0x1F7D5, rangeEnd: 0x1F7FF),
|
||
|
EmojiRange(rangeStart: 0x1F80C, rangeEnd: 0x1F80F),
|
||
|
EmojiRange(rangeStart: 0x1F848, rangeEnd: 0x1F84F),
|
||
|
EmojiRange(rangeStart: 0x1F85A, rangeEnd: 0x1F85F),
|
||
|
EmojiRange(rangeStart: 0x1F888, rangeEnd: 0x1F88F),
|
||
|
EmojiRange(rangeStart: 0x1F8AE, rangeEnd: 0x1FFFD),
|
||
|
EmojiRange(rangeStart: 0xE0020, rangeEnd: 0xE007F)
|
||
|
]
|
||
|
|
||
|
var isEmoji: Bool {
|
||
|
// Binary search
|
||
|
var left: Int = 0
|
||
|
var right = Int(UnicodeScalar.kEmojiRanges.count - 1)
|
||
|
|
||
|
while true {
|
||
|
let mid = (left + right) / 2
|
||
|
let midRange = UnicodeScalar.kEmojiRanges[mid]
|
||
|
if value < midRange.rangeStart {
|
||
|
if mid == left {
|
||
|
return false
|
||
|
}
|
||
|
right = mid - 1
|
||
|
} else if value > midRange.rangeEnd {
|
||
|
if mid == right {
|
||
|
return false
|
||
|
}
|
||
|
left = mid + 1
|
||
|
} else {
|
||
|
return true
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
var isZeroWidthJoiner: Bool {
|
||
|
return value == 8205
|
||
|
}
|
||
|
}
|