/// <summary>
/// Determine whether this string ends with the provided string.
/// </summary>
public bool EndsWith(string other)
{
var it = new ReverseUtf8Enumerator(this);
for (int i = other.Length - 1; i >= 0; i--)
{
if (!it.MoveNext())
{
return(false);
}
var c = other[i];
uint codepoint;
if (char.IsLowSurrogate(c))
{
i--;
codepoint = (uint)char.ConvertToUtf32(other[i], c);
}
else
{
codepoint = (uint)c;
}
if (codepoint != it.Current.Value)
{
return(false);
}
}
return(true);
}
/// <summary>
/// Create a string consisting of this one, minus any trailing whitespace.
/// </summary>
/// <remarks>
/// This method does not allocate.
/// </remarks>
public Utf8String TrimEnd()
{
var it = new ReverseUtf8Enumerator(this);
while (it.MoveNext())
{
if (!char.IsWhiteSpace((char)it.Current.Value))
{
Console.WriteLine("idx: {0} len: {1}", it.Current.Index, it.Current.EncodedLength);
return(Substring(0, it.Current.Index + it.Current.EncodedLength));
}
}
return(Utf8String.Empty);
}