public void Write(char[] array, int offset, int count)
{
if (null == array)
{
throw new ArgumentNullException(nameof(array));
}
if (0 > offset)
{
throw new ArgumentOutOfRangeException(nameof(offset));
}
if (0 > count)
{
throw new ArgumentOutOfRangeException(nameof(count));
}
if (count > array.Length - offset)
{
throw new ArgumentOutOfRangeException(nameof(count));
}
if (_cacheAttrValue)
{
_attrValue.Append(array, offset, count);
}
int endPos = offset + count;
int i = offset;
char ch = (char)0;
for (;;)
{
int startPos = i;
//unsafe
//{
while (i < endPos && _xmlCharType.IsAttributeValueChar(ch = array[i]))
{
i++;
}
//}
if (startPos < i)
{
_textWriter.Write(array, startPos, i - startPos);
}
if (i == endPos)
{
break;
}
switch (ch)
{
case (char)0x9:
_textWriter.Write(ch);
break;
case (char)0xA:
case (char)0xD:
if (_inAttribute)
{
WriteCharEntityImpl(ch);
}
else
{
_textWriter.Write(ch);
}
break;
case '<':
WriteEntityRefImpl("lt");
break;
case '>':
WriteEntityRefImpl("gt");
break;
case '&':
WriteEntityRefImpl("amp");
break;
case '\'':
if (_inAttribute && _quoteChar == ch)
{
WriteEntityRefImpl("apos");
}
else
{
_textWriter.Write('\'');
}
break;
case '"':
if (_inAttribute && _quoteChar == ch)
{
WriteEntityRefImpl("quot");
}
else
{
_textWriter.Write('"');
}
break;
default:
if (XmlCharType.IsHighSurrogate(ch))
{
if (i + 1 < endPos)
{
WriteSurrogateChar(array[++i], ch);
}
else
{
throw new Exception("throw new ArgumentException(SR.Xml_SurrogatePairSplit);");
}
}
else if (XmlCharType.IsLowSurrogate(ch))
{
throw new Exception("throw XmlConvert.CreateInvalidHighSurrogateCharException(ch)");
}
else
{
Debug.Assert((ch < 0x20 && !_xmlCharType.IsWhiteSpace(ch)) || (ch > 0xFFFD));
WriteCharEntityImpl(ch);
}
break;
}
i++;
}
}