CharEntityEncoderFallback.cs

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using System.Text;
 
namespace System.Xml;
 
internal sealed class CharEntityEncoderFallback : EncoderFallback
{
    private CharEntityEncoderFallbackBuffer _fallbackBuffer;
 
    private int[] _textContentMarks;
 
    private int _endMarkPos;
 
    private int _curMarkPos;
 
    private int _startOffset;
 
    public override int MaxCharCount => 12;
 
    internal int StartOffset
    {
        set
        {
            _startOffset = value;
        }
    }
 
    internal CharEntityEncoderFallback()
    {
    }
 
    public override EncoderFallbackBuffer CreateFallbackBuffer()
    {
        if (_fallbackBuffer == null)
        {
            _fallbackBuffer = new CharEntityEncoderFallbackBuffer(this);
        }
        return _fallbackBuffer;
    }
 
    internal void Reset(int[] textContentMarks, int endMarkPos)
    {
        _textContentMarks = textContentMarks;
        _endMarkPos = endMarkPos;
        _curMarkPos = 0;
    }
 
    internal bool CanReplaceAt(int index)
    {
        int i = _curMarkPos;
        for (int num = _startOffset + index; i < _endMarkPos && num >= _textContentMarks[i + 1]; i++)
        {
        }
        _curMarkPos = i;
        return (i & 1) != 0;
    }
}