/// <summary>
/// Allows all characters specified by <paramref name="range"/> through the filter.
/// </summary>
public virtual void AllowRange(UnicodeRange range)
{
if (range is null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.range);
}
int firstCodePoint = range.FirstCodePoint;
int rangeSize = range.Length;
for (int i = 0; i < rangeSize; i++)
{
int codePoint = firstCodePoint + i;
UnicodeDebug.AssertIsBmpCodePoint((uint)codePoint); // UnicodeRange only supports BMP
_allowedCodePointsBitmap.AllowChar((char)codePoint);
}
}
/// <summary>
/// Disallows all characters specified by <paramref name="range"/> through the filter.
/// </summary>
public virtual void ForbidRange(UnicodeRange range)
{
if (range == null)
{
throw new ArgumentNullException(nameof(range));
}
int firstCodePoint = range.FirstCodePoint;
int rangeSize = range.Length;
for (int i = 0; i < rangeSize; i++)
{
int codePoint = firstCodePoint + i;
UnicodeDebug.AssertIsBmpCodePoint((uint)codePoint); // UnicodeRange only supports BMP
_allowedCodePointsBitmap.ForbidChar((char)codePoint);
}
}
private static void _GetIndexAndOffset(uint value, out nuint index, out int offset)
{
UnicodeDebug.AssertIsBmpCodePoint(value);
index = value >> 5;
offset = (int)value & 0x1F;
}