/// <summary>
/// Reads all scalar values from the specified input string.
/// </summary>
/// <param name="inputString">The string to read values from.</param>
/// <returns>An array of scalar values contained in the string.</returns>
private static int[] ReadAllScalarValues(string inputString)
{
Utf16StringReader stringReader = new Utf16StringReader(inputString);
List <int> retVal = new List <int>();
while (true)
{
int nextValue = stringReader.ReadNextScalarValue();
if (nextValue < 0)
{
return(retVal.ToArray());
}
retVal.Add(nextValue);
}
}
/// <summary>
/// Reads the next scalar value from the input string.
/// </summary>
/// <returns>The next scalar value. If the input string contains invalid UTF-16, the
/// return value is the Unicode replacement character U+FFFD. If the end of the string
/// is reached, returns -1.</returns>
public int ReadNextScalarValue()
{
if (this.currentOffset >= this.input.Length)
{
return(-1);
}
char c = this.input[this.currentOffset++];
int num = (int)c;
if (char.IsHighSurrogate(c) && this.currentOffset < this.input.Length)
{
char c2 = this.input[this.currentOffset];
if (char.IsLowSurrogate(c2))
{
this.currentOffset++;
num = Utf16StringReader.ConvertToUtf32(c, c2);
}
}
if (Utf16StringReader.IsValidUnicodeScalarValue(num))
{
return(num);
}
return(65533);
}