private static void AddTokenFlavorNone(IList <FormattedSentence.Token> tokens, int endAt, ref FormattedSentence.SimpleToken.Builder tokenBuilder)
 {
     if (tokenBuilder.IsValid)
     {
         if (tokenBuilder.Flavor == FormattedSentence.SimpleToken.TokenFlavor.InCurlyBraces)
         {
             throw new FormatException("'{' is mismatched or not escaped");
         }
         FormattedSentence.Sentence.AddToken(tokens, endAt, ref tokenBuilder);
     }
 }
 private static bool AddToken(IList <FormattedSentence.Token> tokens, int endAt, ref FormattedSentence.SimpleToken.Builder tokenBuilder)
 {
     if (tokenBuilder.IsValid)
     {
         FormattedSentence.SimpleToken simpleToken = tokenBuilder.Create(endAt);
         if (simpleToken != null)
         {
             tokens.Add(simpleToken);
         }
         tokenBuilder.Invalidate();
         return(simpleToken != null);
     }
     return(false);
 }
            private static int Parse(string input, int startAt, out FormattedSentence.Sentence sentence)
            {
                FormattedSentence.SimpleToken.Builder builder = new FormattedSentence.SimpleToken.Builder(null, FormattedSentence.SimpleToken.TokenFlavor.None, -1);
                List <FormattedSentence.Token>        list    = new List <FormattedSentence.Token>();
                int  num  = startAt - 1;
                bool flag = false;

                while (!flag)
                {
                    num++;
                    if (num > input.Length)
                    {
                        throw new FormatException("Unexpected end of escape sequence. If '' was intended for output, replace it with '\\'");
                    }
                    if (num == input.Length)
                    {
                        break;
                    }
                    char c  = input[num];
                    char c2 = c;
                    switch (c2)
                    {
                    case '<':
                    {
                        FormattedSentence.Sentence.AddTokenFlavorNone(list, num - 1, ref builder);
                        FormattedSentence.Sentence item;
                        num = FormattedSentence.Sentence.Parse(input, num + 1, out item);
                        if (num >= input.Length || input[num] != '>')
                        {
                            throw new FormatException("'<' is mismatched or not properly escaped");
                        }
                        list.Add(item);
                        continue;
                    }

                    case '=':
                        break;

                    case '>':
                        flag = true;
                        continue;

                    default:
                        switch (c2)
                        {
                        case '{':
                            FormattedSentence.Sentence.AddTokenFlavorNone(list, num - 1, ref builder);
                            builder = new FormattedSentence.SimpleToken.Builder(input, FormattedSentence.SimpleToken.TokenFlavor.InCurlyBraces, num + 1);
                            continue;

                        case '}':
                            if (!builder.IsValid || builder.Flavor != FormattedSentence.SimpleToken.TokenFlavor.InCurlyBraces)
                            {
                                throw new FormatException("'}' is mismatched or not escaped");
                            }
                            FormattedSentence.Sentence.AddToken(list, num - 1, ref builder);
                            continue;
                        }
                        break;
                    }
                    if (!builder.IsValid)
                    {
                        builder = new FormattedSentence.SimpleToken.Builder(input, FormattedSentence.SimpleToken.TokenFlavor.None, num);
                    }
                    if (c == '\\')
                    {
                        num++;
                    }
                }
                FormattedSentence.Sentence.AddTokenFlavorNone(list, num - 1, ref builder);
                sentence = new FormattedSentence.Sentence(list);
                return(num);
            }