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Copy pathFrwTwemojiParser.cs
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FrwTwemojiParser.cs
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using Microsoft.Extensions.Logging;
using ChatCore.Interfaces;
using ChatCore.Models;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
namespace ChatCore.Services
{
public class FrwTwemojiParser : IEmojiParser
{
internal static Regex _emojiRegex = new Regex("(?:\\uD83D\\uDC68\\uD83C\\uDFFC\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC68\\uD83C\\uDFFB|\\uD83D\\uDC68\\uD83C\\uDFFD\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC68\\uD83C[\\uDFFB\\uDFFC]|\\uD83D\\uDC68\\uD83C\\uDFFE\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC68\\uD83C[\\uDFFB-\\uDFFD]|\\uD83D\\uDC68\\uD83C\\uDFFF\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC68\\uD83C[\\uDFFB-\\uDFFE]|\\uD83D\\uDC69\\uD83C\\uDFFB\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC68\\uD83C[\\uDFFC-\\uDFFF]|\\uD83D\\uDC69\\uD83C\\uDFFC\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC68\\uD83C[\\uDFFB\\uDFFD-\\uDFFF]|\\uD83D\\uDC69\\uD83C\\uDFFC\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC69\\uD83C\\uDFFB|\\uD83D\\uDC69\\uD83C\\uDFFD\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC68\\uD83C[\\uDFFB\\uDFFC\\uDFFE\\uDFFF]|\\uD83D\\uDC69\\uD83C\\uDFFD\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC69\\uD83C[\\uDFFB\\uDFFC]|\\uD83D\\uDC69\\uD83C\\uDFFE\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC68\\uD83C[\\uDFFB-\\uDFFD\\uDFFF]|\\uD83D\\uDC69\\uD83C\\uDFFE\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC69\\uD83C[\\uDFFB-\\uDFFD]|\\uD83D\\uDC69\\uD83C\\uDFFF\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC68\\uD83C[\\uDFFB-\\uDFFE]|\\uD83D\\uDC69\\uD83C\\uDFFF\\u200D\\uD83E\\uDD1D\\u200D\\uD83D\\uDC69\\uD83C[\\uDFFB-\\uDFFE]|\\uD83E\\uDDD1\\uD83C\\uDFFB\\u200D\\uD83E\\uDD1D\\u200D\\uD83E\\uDDD1\\uD83C\\uDFFB|\\uD83E\\uDDD1\\uD83C\\uDFFC\\u200D\\uD83E\\uDD1D\\u200D\\uD83E\\uDDD1\\uD83C[\\uDFFB\\uDFFC]|\\uD83E\\uDDD1\\uD83C\\uDFFD\\u200D\\uD83E\\uDD1D\\u200D\\uD83E\\uDDD1\\uD83C[\\uDFFB-\\uDFFD]|\\uD83E\\uDDD1\\uD83C\\uDFFE\\u200D\\uD83E\\uDD1D\\u200D\\uD83E\\uDDD1\\uD83C[\\uDFFB-\\uDFFE]|\\uD83E\\uDDD1\\uD83C\\uDFFF\\u200D\\uD83E\\uDD1D\\u200D\\uD83E\\uDDD1\\uD83C[\\uDFFB-\\uDFFF]|\\uD83E\\uDDD1\\u200D\\uD83E\\uDD1D\\u200D\\uD83E\\uDDD1|\\uD83D\\uDC6B\\uD83C[\\uDFFB-\\uDFFF]|\\uD83D\\uDC6C\\uD83C[\\uDFFB-\\uDFFF]|\\uD83D\\uDC6D\\uD83C[\\uDFFB-\\uDFFF]|\\uD83D[\\uDC6B-\\uDC6D])|(?:\\uD83D[\\uDC68\\uDC69])(?:\\uD83C[\\uDFFB-\\uDFFF])?\\u200D(?:\\u2695\\uFE0F|\\u2696\\uFE0F|\\u2708\\uFE0F|\\uD83C[\\uDF3E\\uDF73\\uDF93\\uDFA4\\uDFA8\\uDFEB\\uDFED]|\\uD83D[\\uDCBB\\uDCBC\\uDD27\\uDD2C\\uDE80\\uDE92]|\\uD83E[\\uDDAF-\\uDDB3\\uDDBC\\uDDBD])|(?:\\uD83C[\\uDFCB\\uDFCC]|\\uD83D[\\uDD74\\uDD75]|\\u26F9)((?:\\uD83C[\\uDFFB-\\uDFFF]|\\uFE0F)\\u200D[\\u2640\\u2642]\\uFE0F)|(?:\\uD83C[\\uDFC3\\uDFC4\\uDFCA]|\\uD83D[\\uDC6E\\uDC71\\uDC73\\uDC77\\uDC81\\uDC82\\uDC86\\uDC87\\uDE45-\\uDE47\\uDE4B\\uDE4D\\uDE4E\\uDEA3\\uDEB4-\\uDEB6]|\\uD83E[\\uDD26\\uDD35\\uDD37-\\uDD39\\uDD3D\\uDD3E\\uDDB8\\uDDB9\\uDDCD-\\uDDCF\\uDDD6-\\uDDDD])(?:\\uD83C[\\uDFFB-\\uDFFF])?\\u200D[\\u2640\\u2642]\\uFE0F|(?:\\uD83D\\uDC68\\u200D\\u2764\\uFE0F\\u200D\\uD83D\\uDC8B\\u200D\\uD83D\\uDC68|\\uD83D\\uDC68\\u200D\\uD83D\\uDC68\\u200D\\uD83D\\uDC66\\u200D\\uD83D\\uDC66|\\uD83D\\uDC68\\u200D\\uD83D\\uDC68\\u200D\\uD83D\\uDC67\\u200D\\uD83D[\\uDC66\\uDC67]|\\uD83D\\uDC68\\u200D\\uD83D\\uDC69\\u200D\\uD83D\\uDC66\\u200D\\uD83D\\uDC66|\\uD83D\\uDC68\\u200D\\uD83D\\uDC69\\u200D\\uD83D\\uDC67\\u200D\\uD83D[\\uDC66\\uDC67]|\\uD83D\\uDC69\\u200D\\u2764\\uFE0F\\u200D\\uD83D\\uDC8B\\u200D\\uD83D[\\uDC68\\uDC69]|\\uD83D\\uDC69\\u200D\\uD83D\\uDC69\\u200D\\uD83D\\uDC66\\u200D\\uD83D\\uDC66|\\uD83D\\uDC69\\u200D\\uD83D\\uDC69\\u200D\\uD83D\\uDC67\\u200D\\uD83D[\\uDC66\\uDC67]|\\uD83D\\uDC68\\u200D\\u2764\\uFE0F\\u200D\\uD83D\\uDC68|\\uD83D\\uDC68\\u200D\\uD83D\\uDC66\\u200D\\uD83D\\uDC66|\\uD83D\\uDC68\\u200D\\uD83D\\uDC67\\u200D\\uD83D[\\uDC66\\uDC67]|\\uD83D\\uDC68\\u200D\\uD83D\\uDC68\\u200D\\uD83D[\\uDC66\\uDC67]|\\uD83D\\uDC68\\u200D\\uD83D\\uDC69\\u200D\\uD83D[\\uDC66\\uDC67]|\\uD83D\\uDC69\\u200D\\u2764\\uFE0F\\u200D\\uD83D[\\uDC68\\uDC69]|\\uD83D\\uDC69\\u200D\\uD83D\\uDC66\\u200D\\uD83D\\uDC66|\\uD83D\\uDC69\\u200D\\uD83D\\uDC67\\u200D\\uD83D[\\uDC66\\uDC67]|\\uD83D\\uDC69\\u200D\\uD83D\\uDC69\\u200D\\uD83D[\\uDC66\\uDC67]|\\uD83C\\uDFF3\\uFE0F\\u200D\\u26A7\\uFE0F|\\uD83C\\uDFF3\\uFE0F\\u200D\\uD83C\\uDF08|\\uD83C\\uDFF4\\u200D\\u2620\\uFE0F|\\uD83D\\uDC15\\u200D\\uD83E\\uDDBA|\\uD83D\\uDC41\\u200D\\uD83D\\uDDE8|\\uD83D\\uDC68\\u200D\\uD83D[\\uDC66\\uDC67]|\\uD83D\\uDC69\\u200D\\uD83D[\\uDC66\\uDC67]|\\uD83D\\uDC6F\\u200D\\u2640\\uFE0F|\\uD83D\\uDC6F\\u200D\\u2642\\uFE0F|\\uD83E\\uDD3C\\u200D\\u2640\\uFE0F|\\uD83E\\uDD3C\\u200D\\u2642\\uFE0F|\\uD83E\\uDDDE\\u200D\\u2640\\uFE0F|\\uD83E\\uDDDE\\u200D\\u2642\\uFE0F|\\uD83E\\uDDDF\\u200D\\u2640\\uFE0F|\\uD83E\\uDDDF\\u200D\\u2642\\uFE0F)|[#*0-9]\\uFE0F?\\u20E3|(?:[©®\\u2122\\u265F]\\uFE0F)|(?:\\uD83C[\\uDC04\\uDD70\\uDD71\\uDD7E\\uDD7F\\uDE02\\uDE1A\\uDE2F\\uDE37\\uDF21\\uDF24-\\uDF2C\\uDF36\\uDF7D\\uDF96\\uDF97\\uDF99-\\uDF9B\\uDF9E\\uDF9F\\uDFCD\\uDFCE\\uDFD4-\\uDFDF\\uDFF3\\uDFF5\\uDFF7]|\\uD83D[\\uDC3F\\uDC41\\uDCFD\\uDD49\\uDD4A\\uDD6F\\uDD70\\uDD73\\uDD76-\\uDD79\\uDD87\\uDD8A-\\uDD8D\\uDDA5\\uDDA8\\uDDB1\\uDDB2\\uDDBC\\uDDC2-\\uDDC4\\uDDD1-\\uDDD3\\uDDDC-\\uDDDE\\uDDE1\\uDDE3\\uDDE8\\uDDEF\\uDDF3\\uDDFA\\uDECB\\uDECD-\\uDECF\\uDEE0-\\uDEE5\\uDEE9\\uDEF0\\uDEF3]|[\\u203C\\u2049\\u2139\\u2194-\\u2199\\u21A9\\u21AA\\u231A\\u231B\\u2328\\u23CF\\u23ED-\\u23EF\\u23F1\\u23F2\\u23F8-\\u23FA\\u24C2\\u25AA\\u25AB\\u25B6\\u25C0\\u25FB-\\u25FE\\u2600-\\u2604\\u260E\\u2611\\u2614\\u2615\\u2618\\u2620\\u2622\\u2623\\u2626\\u262A\\u262E\\u262F\\u2638-\\u263A\\u2640\\u2642\\u2648-\\u2653\\u2660\\u2663\\u2665\\u2666\\u2668\\u267B\\u267F\\u2692-\\u2697\\u2699\\u269B\\u269C\\u26A0\\u26A1\\u26A7\\u26AA\\u26AB\\u26B0\\u26B1\\u26BD\\u26BE\\u26C4\\u26C5\\u26C8\\u26CF\\u26D1\\u26D3\\u26D4\\u26E9\\u26EA\\u26F0-\\u26F5\\u26F8\\u26FA\\u26FD\\u2702\\u2708\\u2709\\u270F\\u2712\\u2714\\u2716\\u271D\\u2721\\u2733\\u2734\\u2744\\u2747\\u2757\\u2763\\u2764\\u27A1\\u2934\\u2935\\u2B05-\\u2B07\\u2B1B\\u2B1C\\u2B50\\u2B55\\u3030\\u303D\\u3297\\u3299])(?:\\uFE0F|(?!\\uFE0E))|(?:(?:\\uD83C[\\uDFCB\\uDFCC]|\\uD83D[\\uDD74\\uDD75\\uDD90]|[\\u261D\\u26F7\\u26F9\\u270C\\u270D])(?:\\uFE0F|(?!\\uFE0E))|(?:\\uD83C[\\uDF85\\uDFC2-\\uDFC4\\uDFC7\\uDFCA]|\\uD83D[\\uDC42\\uDC43\\uDC46-\\uDC50\\uDC66-\\uDC69\\uDC6E\\uDC70-\\uDC78\\uDC7C\\uDC81-\\uDC83\\uDC85-\\uDC87\\uDCAA\\uDD7A\\uDD95\\uDD96\\uDE45-\\uDE47\\uDE4B-\\uDE4F\\uDEA3\\uDEB4-\\uDEB6\\uDEC0\\uDECC]|\\uD83E[\\uDD0F\\uDD18-\\uDD1C\\uDD1E\\uDD1F\\uDD26\\uDD30-\\uDD39\\uDD3D\\uDD3E\\uDDB5\\uDDB6\\uDDB8\\uDDB9\\uDDBB\\uDDCD-\\uDDCF\\uDDD1-\\uDDDD]|[\\u270A\\u270B]))(?:\\uD83C[\\uDFFB-\\uDFFF])?|(?:\\uD83C\\uDFF4\\uDB40\\uDC67\\uDB40\\uDC62\\uDB40\\uDC65\\uDB40\\uDC6E\\uDB40\\uDC67\\uDB40\\uDC7F|\\uD83C\\uDFF4\\uDB40\\uDC67\\uDB40\\uDC62\\uDB40\\uDC73\\uDB40\\uDC63\\uDB40\\uDC74\\uDB40\\uDC7F|\\uD83C\\uDFF4\\uDB40\\uDC67\\uDB40\\uDC62\\uDB40\\uDC77\\uDB40\\uDC6C\\uDB40\\uDC73\\uDB40\\uDC7F|\\uD83C\\uDDE6\\uD83C[\\uDDE8-\\uDDEC\\uDDEE\\uDDF1\\uDDF2\\uDDF4\\uDDF6-\\uDDFA\\uDDFC\\uDDFD\\uDDFF]|\\uD83C\\uDDE7\\uD83C[\\uDDE6\\uDDE7\\uDDE9-\\uDDEF\\uDDF1-\\uDDF4\\uDDF6-\\uDDF9\\uDDFB\\uDDFC\\uDDFE\\uDDFF]|\\uD83C\\uDDE8\\uD83C[\\uDDE6\\uDDE8\\uDDE9\\uDDEB-\\uDDEE\\uDDF0-\\uDDF5\\uDDF7\\uDDFA-\\uDDFF]|\\uD83C\\uDDE9\\uD83C[\\uDDEA\\uDDEC\\uDDEF\\uDDF0\\uDDF2\\uDDF4\\uDDFF]|\\uD83C\\uDDEA\\uD83C[\\uDDE6\\uDDE8\\uDDEA\\uDDEC\\uDDED\\uDDF7-\\uDDFA]|\\uD83C\\uDDEB\\uD83C[\\uDDEE-\\uDDF0\\uDDF2\\uDDF4\\uDDF7]|\\uD83C\\uDDEC\\uD83C[\\uDDE6\\uDDE7\\uDDE9-\\uDDEE\\uDDF1-\\uDDF3\\uDDF5-\\uDDFA\\uDDFC\\uDDFE]|\\uD83C\\uDDED\\uD83C[\\uDDF0\\uDDF2\\uDDF3\\uDDF7\\uDDF9\\uDDFA]|\\uD83C\\uDDEE\\uD83C[\\uDDE8-\\uDDEA\\uDDF1-\\uDDF4\\uDDF6-\\uDDF9]|\\uD83C\\uDDEF\\uD83C[\\uDDEA\\uDDF2\\uDDF4\\uDDF5]|\\uD83C\\uDDF0\\uD83C[\\uDDEA\\uDDEC-\\uDDEE\\uDDF2\\uDDF3\\uDDF5\\uDDF7\\uDDFC\\uDDFE\\uDDFF]|\\uD83C\\uDDF1\\uD83C[\\uDDE6-\\uDDE8\\uDDEE\\uDDF0\\uDDF7-\\uDDFB\\uDDFE]|\\uD83C\\uDDF2\\uD83C[\\uDDE6\\uDDE8-\\uDDED\\uDDF0-\\uDDFF]|\\uD83C\\uDDF3\\uD83C[\\uDDE6\\uDDE8\\uDDEA-\\uDDEC\\uDDEE\\uDDF1\\uDDF4\\uDDF5\\uDDF7\\uDDFA\\uDDFF]|\\uD83C\\uDDF4\\uD83C\\uDDF2|\\uD83C\\uDDF5\\uD83C[\\uDDE6\\uDDEA-\\uDDED\\uDDF0-\\uDDF3\\uDDF7-\\uDDF9\\uDDFC\\uDDFE]|\\uD83C\\uDDF6\\uD83C\\uDDE6|\\uD83C\\uDDF7\\uD83C[\\uDDEA\\uDDF4\\uDDF8\\uDDFA\\uDDFC]|\\uD83C\\uDDF8\\uD83C[\\uDDE6-\\uDDEA\\uDDEC-\\uDDF4\\uDDF7-\\uDDF9\\uDDFB\\uDDFD-\\uDDFF]|\\uD83C\\uDDF9\\uD83C[\\uDDE6\\uDDE8\\uDDE9\\uDDEB-\\uDDED\\uDDEF-\\uDDF4\\uDDF7\\uDDF9\\uDDFB\\uDDFC\\uDDFF]|\\uD83C\\uDDFA\\uD83C[\\uDDE6\\uDDEC\\uDDF2\\uDDF3\\uDDF8\\uDDFE\\uDDFF]|\\uD83C\\uDDFB\\uD83C[\\uDDE6\\uDDE8\\uDDEA\\uDDEC\\uDDEE\\uDDF3\\uDDFA]|\\uD83C\\uDDFC\\uD83C[\\uDDEB\\uDDF8]|\\uD83C\\uDDFD\\uD83C\\uDDF0|\\uD83C\\uDDFE\\uD83C[\\uDDEA\\uDDF9]|\\uD83C\\uDDFF\\uD83C[\\uDDE6\\uDDF2\\uDDFC]|\\uD83C[\\uDCCF\\uDD8E\\uDD91-\\uDD9A\\uDDE6-\\uDDFF\\uDE01\\uDE32-\\uDE36\\uDE38-\\uDE3A\\uDE50\\uDE51\\uDF00-\\uDF20\\uDF2D-\\uDF35\\uDF37-\\uDF7C\\uDF7E-\\uDF84\\uDF86-\\uDF93\\uDFA0-\\uDFC1\\uDFC5\\uDFC6\\uDFC8\\uDFC9\\uDFCF-\\uDFD3\\uDFE0-\\uDFF0\\uDFF4\\uDFF8-\\uDFFF]|\\uD83D[\\uDC00-\\uDC3E\\uDC40\\uDC44\\uDC45\\uDC51-\\uDC65\\uDC6A-\\uDC6D\\uDC6F\\uDC79-\\uDC7B\\uDC7D-\\uDC80\\uDC84\\uDC88-\\uDCA9\\uDCAB-\\uDCFC\\uDCFF-\\uDD3D\\uDD4B-\\uDD4E\\uDD50-\\uDD67\\uDDA4\\uDDFB-\\uDE44\\uDE48-\\uDE4A\\uDE80-\\uDEA2\\uDEA4-\\uDEB3\\uDEB7-\\uDEBF\\uDEC1-\\uDEC5\\uDED0-\\uDED2\\uDED5\\uDEEB\\uDEEC\\uDEF4-\\uDEFA\\uDFE0-\\uDFEB]|\\uD83E[\\uDD0D\\uDD0E\\uDD10-\\uDD17\\uDD1D\\uDD20-\\uDD25\\uDD27-\\uDD2F\\uDD3A\\uDD3C\\uDD3F-\\uDD45\\uDD47-\\uDD71\\uDD73-\\uDD76\\uDD7A-\\uDDA2\\uDDA5-\\uDDAA\\uDDAE-\\uDDB4\\uDDB7\\uDDBA\\uDDBC-\\uDDCA\\uDDD0\\uDDDE-\\uDDFF\\uDE70-\\uDE73\\uDE78-\\uDE7A\\uDE80-\\uDE82\\uDE90-\\uDE95]|[\\u23E9-\\u23EC\\u23F0\\u23F3\\u267E\\u26CE\\u2705\\u2728\\u274C\\u274E\\u2753-\\u2755\\u2795-\\u2797\\u27B0\\u27BF\\uE50A])|\\uFE0F", RegexOptions.Compiled | RegexOptions.CultureInvariant);
public FrwTwemojiParser(ILogger<FrwTwemojiParser> logger, IPathProvider pathProvider)
{
_logger = logger;
_pathProvider = pathProvider;
}
private ILogger _logger;
private IPathProvider _pathProvider;
public List<IChatEmote> FindEmojis(string str)
{
List<IChatEmote> emojis = new List<IChatEmote>();
if (string.IsNullOrEmpty(str))
{
return emojis;
}
//_logger.LogInformation($"Message: {str}, Bytes: {BitConverter.ToString(Encoding.UTF32.GetBytes(str))}");
foreach(Match match in _emojiRegex.Matches(str))
{
//_logger.LogInformation($"Match: {match.Value}, Bytes: {BitConverter.ToString(Encoding.UTF32.GetBytes(match.Value))}, Index: {match.Index}, Length: {match.Length}");
string unicodeStr = WebParseEmojiRegExMatchEvaluator(match);
if (string.IsNullOrEmpty(unicodeStr))
{
continue;
}
var emoji = new Emoji()
{
Id = $"Emoji_{unicodeStr}",
Name = match.Value,
StartIndex = match.Index,
EndIndex = match.Index + match.Length-1,
Uri = $"https://raw.githubusercontent.com/twitter/twemoji/32958b019cfb451575389851a5979f31a2a14d08/assets/72x72/{unicodeStr.ToLower()}.png",
IsAnimated = false
};
//_logger.LogInformation($"Match: {BitConverter.ToString(Encoding.UTF32.GetBytes(match.Value))}, Emoji: {unicodeStr}, StartIndex: {emoji.StartIndex}, EndIndex: {emoji.EndIndex}, Uri: {emoji.Uri}");
emojis.Add(emoji);
}
return emojis;
}
#region FrwTwemoji stuff
const char u200D = '\u200D'; // 8205
const char uFE0F = '\uFE0F'; // 65039
const char uD83C = '\uD83C'; // 55356
const char uDFFC = '\uDFFC'; // 57340
const char uDFFD = '\uDFFD'; // 57341
const char uDFFE = '\uDFFE'; // 57342
const char uDFFF = '\uDFFF'; // 57343
private static int ConvertUtf16ToCodePoint(string utf16)
{
char[] s = utf16.ToCharArray();
int retval;
if (s.GetUpperBound(0) == 0)
{
retval = char.ConvertToUtf32(utf16, 0);
}
else
{
retval = char.ConvertToUtf32(s[0], s[1]);
}
// Console.WriteLine(@"ConvertUtf16ToCodePoint) {1} => 0x{0:X}", retval, Show(utf16));
return retval;
}
private string WebParseEmojiRegExMatchEvaluator(Match match)
{
string emoji = string.Empty;
char[] s = match.Value.ToCharArray();
int upperboundOfS = s.GetUpperBound(0);
int codepoint = 0;
try
{
if (upperboundOfS < 2)
{
if (upperboundOfS == 1 && s[1] == uFE0F)
{
codepoint = ConvertUtf16ToCodePoint(new string(new[] { s[0] }));
}
else
{
codepoint = ConvertUtf16ToCodePoint(match.Value);
}
emoji = string.Format("{0:x}", codepoint).ToUpperInvariant();
}
else
{
int i = 0;
while (i <= upperboundOfS)
{
if (emoji.Length > 0)
{
emoji += "-";
}
if (s[i] != u200D)
{
if (i + 1 <= upperboundOfS && s[i + 1] != u200D)
{
if (i + 2 <= upperboundOfS && s[i + 1] == uD83C) // XXXX - 55356 - 57343
{
codepoint = ConvertUtf16ToCodePoint(new string(new char[] { s[i] }));
emoji += $"{codepoint:x}".ToUpperInvariant();
if (s[i + 2] == uDFFC)// XXXX - 55356 - 57340
{
emoji += "-1F3FC";
}
if (s[i + 2] == uDFFD)// XXXX - 55356 - 57341
{
emoji += "-1F3FD";
}
if (s[i + 2] == uDFFE)// XXXX - 55356 - 57342
{
emoji += "-1F3FE";
}
if (s[i + 2] == uDFFF)// XXXX - 55356 - 57343
{
emoji += "-1F3FF";
}
i += 3;
}
else
{
if (s[i + 1] == uFE0F)
{
// Issue #10 when there is 2️⃣ in the text : https://github.com/FrenchW/FrwTwemoji/issues/10
// s[0]: 50
// s[1]: 65039
// s[2]: 8419
codepoint = ConvertUtf16ToCodePoint(new string(new char[] { s[i + 2] }));
int codepoint0 = ConvertUtf16ToCodePoint(new string(new char[] { s[i] }));
emoji += $"{codepoint0:x}-".ToUpperInvariant() + $"{codepoint:x}".ToUpperInvariant();
i += 3;
}
else
{
if (i + 2 <= upperboundOfS && s[i + 2] == uFE0F)
{
// Issue when there is {🅰️} in the text
// s[0]: 55356
// s[1]: 56688
// s[2]: 65039
codepoint = ConvertUtf16ToCodePoint(new string(new char[] { s[i], s[i + 1] }));
emoji += $"{codepoint:x}".ToUpperInvariant();
i += 3;
}
else
{
codepoint = ConvertUtf16ToCodePoint(new string(new char[] { s[i], s[i + 1] }));
emoji += $"{codepoint:x}".ToUpperInvariant();
i += 2;
}
}
}
}
else
{
codepoint = ConvertUtf16ToCodePoint(new string(new char[] { s[i], s[i + 1] }));
emoji += $"{codepoint:x}".ToUpperInvariant();
i += 1;
}
}
else
{
if (i + 2 <= upperboundOfS && s[i + 2] == uFE0F)
{
codepoint = ConvertUtf16ToCodePoint(new string(new char[] { s[i + 1] }));
emoji += "200D-" + $"{codepoint:x}".ToUpperInvariant() + "-FE0F";
i += 3;
}
else
{
if (i + 2 <= upperboundOfS && s[i + 2] != u200D)
{
codepoint = ConvertUtf16ToCodePoint(new string(new char[] { s[i + 1], s[i + 2] }));
emoji += "200D-" + $"{codepoint:x}".ToUpperInvariant();
i += 3;
}
else
{
codepoint = ConvertUtf16ToCodePoint(new string(new char[] { s[i + 1] }));
emoji += "200D-" + $"{codepoint:x}".ToUpperInvariant();
i += 2;
}
}
}
}
}
}
catch
{
codepoint = ConvertUtf16ToCodePoint("🆘");
emoji = string.Format("{0:x}", codepoint).ToUpperInvariant();
}
return emoji;
}
#endregion
}
}