/// <summary>
/// Advances the reader and reads until a substring specified by <paramref name="indicator" /> is encountered.
/// The reader's position after executing this method depends on the <paramref name="options" />.
/// </summary>
/// <param name="indicator">The reader stops when an occurrence of this string instance is encountered.</param>
/// <param name="options">Specifies the reading options.</param>
/// <returns>
/// A substring read from the underlying string instance.
/// </returns>
public string ReadTo(string indicator, ReadOptions options = ReadOptions.StopAfterKey | ReadOptions.DiscardKey)
{
var idx = options.HasFlag(ReadOptions.InLine) ? UnderlyingString.InlineIndexOf(indicator, CurrentPosition, EndPosition - CurrentPosition, ComparisonType) :
UnderlyingString.IndexOf(indicator, CurrentPosition, EndPosition - CurrentPosition, ComparisonType);
return(_innerReadTo(idx, indicator.Length, options));
}
