AI: Refact

============================== old
if (lines.Count == 1 && text != oldText && Utilities.GetNumberOfLines(oldText) == 2)



============================== new
private static bool ContainsPunctuationFollowedByNewLine(string text)
{
    string[] punctuations = new[] { ".", ".</i>", "!", "!</i>", "?", "?</i>" };

    return punctuations.Any(punct => oldText.Contains(punct + Environment.NewLine));
}

public void SomeMethod()
{
    if (lines.Count == 1 && text != oldText && Utilities.GetNumberOfLines(oldText) == 2)
    {
        string[] startPatterns = new[] { "-", "<i>-"};
        string[] lineBreakPatterns = new[] { Environment.NewLine + "-", Environment.NewLine + "<i>-" };

        if ((startPatterns.Any(pattern => oldText.StartsWith(pattern, StringComparison.Ordinal)) ||
             lineBreakPatterns.Any(pattern => oldText.Contains(pattern))) &&
            ContainsPunctuationFollowedByNewLine(oldText))
        {
            if (text.StartsWith("<i>-", StringComparison.Ordinal))
            {
                text = "<i>" + text.Remove(0, 4).TrimStart();
            }
            else
            {
                text = text.TrimStart('-').TrimStart();
            }
        }
    }
}