/// <summary>
/// Matches a text without setting an error if matches fails.
/// </summary>
/// <param name="text">The string that must match. Can not be null nor empty.</param>
/// <param name="comparisonType">Specifies the culture, case, and sort rules.</param>
/// <returns></returns>
public bool TryMatchText(string text, StringComparison comparisonType = StringComparison.OrdinalIgnoreCase)
{
if (string.IsNullOrEmpty(text))
{
throw new ArgumentException(nameof(text));
}
int len = text.Length;
return(!IsEnd &&
len <= _length &&
string.Compare(_text.GetText(_startIndex, len), 0, text, 0, len, comparisonType) == 0
? UncheckedMove(len)
: false);
}
/// <summary>
/// Returns a substring of the Virtual String.
/// It calls <see cref="IVirtualString.GetText(long, int)"/> on <see cref="Text"/>.
/// </summary>
/// <param name="index">The index where we want to start the substring.</param>
/// <param name="length">The length of the substring.</param>
/// <returns>The string containing characters in the range.</returns>
public string GetText(long index, int length)
{
return(_text.GetText(index, length));
}