internal static string[] BuildCharExceptionArgs(char invChar, char nextChar)
{
string[] aStringList = new string[2];
// for surrogate characters include both high and low char in the message so that a full character is displayed
if (XmlCharType.IsHighSurrogate(invChar) && nextChar != 0)
{
int combinedChar = XmlCharType.CombineSurrogateChar(nextChar, invChar);
aStringList[0] = new string(new char[] { invChar, nextChar });
aStringList[1] = string.Format(CultureInfo.InvariantCulture, "0x{0:X2}", combinedChar);
}
else
{
// don't include 0 character in the string - in means eof-of-string in native code, where this may bubble up to
if ((int)invChar == 0)
{
aStringList[0] = ".";
}
else
{
aStringList[0] = invChar.ToString(CultureInfo.InvariantCulture);
}
aStringList[1] = string.Format(CultureInfo.InvariantCulture, "0x{0:X2}", (int)invChar);
}
return(aStringList);
}
internal void WriteRawWithSurrogateChecking(string text)
{
if (text == null)
{
return;
}
if (_cacheAttrValue)
{
_attrValue.Append(text);
}
int len = text.Length;
int i = 0;
char ch = (char)0;
for (; ;)
{
unsafe
{
while (i < len &&
((_xmlCharType.charProperties[ch = text[i]] & XmlCharType.fCharData) != 0 || // ( xmlCharType.IsCharData( ( ch = text[i] ) )
ch < 0x20))
{
i++;
}
}
if (i == len)
{
break;
}
if (XmlCharType.IsHighSurrogate(ch))
{
if (i + 1 < len)
{
char lowChar = text[i + 1];
if (XmlCharType.IsLowSurrogate(lowChar))
{
i += 2;
continue;
}
else
{
throw XmlConvert.CreateInvalidSurrogatePairException(lowChar, ch);
}
}
throw new ArgumentException(ResXml.Xml_InvalidSurrogateMissingLowChar);
}
else if (XmlCharType.IsLowSurrogate(ch))
{
throw XmlConvert.CreateInvalidHighSurrogateCharException(ch);
}
else
{
i++;
}
}
_textWriter.Write(text);
return;
}
public void WriteRawWithSurrogateChecking(string text)
{
if (text == null)
{
return;
}
if (_cacheAttrValue)
{
_attrValue.Append(text);
}
int len = text.Length;
int i = 0;
char ch = (char)0;
for (;;)
{
while (i < len && (_xmlCharType.IsCharData(ch = text[i]) || ch < 0x20))
{
i++;
}
if (i == len)
{
break;
}
if (XmlCharType.IsHighSurrogate(ch))
{
if (i + 1 < len)
{
char lowChar = text[i + 1];
if (XmlCharType.IsLowSurrogate(lowChar))
{
i += 2;
continue;
}
else
{
throw new Exception("throw XmlConvert.CreateInvalidSurrogatePairException(lowChar, ch);");
//throw XmlConvert.CreateInvalidSurrogatePairException(lowChar, ch);
}
}
throw new Exception("throw new ArgumentException(SR.Xml_InvalidSurrogateMissingLowChar);");
}
else if (XmlCharType.IsLowSurrogate(ch))
{
throw new Exception("throw XmlConvert.CreateInvalidHighSurrogateCharException(ch);");
//throw XmlConvert.CreateInvalidHighSurrogateCharException(ch);
}
else
{
i++;
}
}
_textWriter.Write(text);
return;
}
internal void WriteSurrogateChar(char lowChar, char highChar)
{
if (!XmlCharType.IsLowSurrogate(lowChar) ||
!XmlCharType.IsHighSurrogate(highChar))
{
throw XmlConvert.CreateInvalidSurrogatePairException(lowChar, highChar);
}
_textWriter.Write(highChar);
_textWriter.Write(lowChar);
}
public void WriteSurrogateCharEntity(char lowChar, char highChar)
{
if (!XmlCharType.IsLowSurrogate(lowChar) ||
!XmlCharType.IsHighSurrogate(highChar))
{
throw new Exception("throw XmlConvert.CreateInvalidSurrogatePairException(lowChar, highChar);");
}
int surrogateChar = XmlCharType.CombineSurrogateChar(lowChar, highChar);
if (_cacheAttrValue)
{
_attrValue.Append(highChar);
_attrValue.Append(lowChar);
}
_textWriter.Write("&#x");
_textWriter.Write(surrogateChar.ToString("X", NumberFormatInfo.InvariantInfo));
_textWriter.Write(';');
}
public static unsafe void VerifyCharData(string data, ExceptionType invCharExceptionType, ExceptionType invSurrogateExceptionType)
{
if (string.IsNullOrEmpty(data))
{
return;
}
int i = 0;
int len = data.Length;
for (;;)
{
while (i < len && (xmlCharType.charProperties[data[i]] & XmlCharType.fCharData) != 0)
{
i++;
}
if (i == len)
{
return;
}
char ch = data[i];
if (XmlCharType.IsHighSurrogate(ch))
{
if (i + 1 == len)
{
throw CreateException(SR.Xml_InvalidSurrogateMissingLowChar, invSurrogateExceptionType, 0, i + 1);
}
ch = data[i + 1];
if (XmlCharType.IsLowSurrogate(ch))
{
i += 2;
continue;
}
else
{
throw CreateInvalidSurrogatePairException(data[i + 1], data[i], invSurrogateExceptionType, 0, i + 1);
}
}
throw CreateInvalidCharException(data, i, invCharExceptionType);
}
}
internal static void VerifyCharData(char[] data, int offset, int len, ExceptionType exceptionType)
{
if (data == null || len == 0)
{
return;
}
int i = offset;
int endPos = offset + len;
for (; ;)
{
while (i < endPos && s_xmlCharType.IsCharData(data[i]))
{
i++;
}
if (i == endPos)
{
return;
}
char ch = data[i];
if (XmlCharType.IsHighSurrogate(ch))
{
if (i + 1 == endPos)
{
throw CreateException(SR.Xml_InvalidSurrogateMissingLowChar, exceptionType, 0, offset - i + 1);
}
ch = data[i + 1];
if (XmlCharType.IsLowSurrogate(ch))
{
i += 2;
continue;
}
else
{
throw CreateInvalidSurrogatePairException(data[i + 1], data[i], exceptionType, 0, offset - i + 1);
}
}
throw CreateInvalidCharException(data, len, i, exceptionType);
}
}
internal static void VerifyCharData(string data, ExceptionType invCharExceptionType, ExceptionType invSurrogateExceptionType)
{
if (data == null || data.Length == 0)
{
return;
}
int i = 0;
int len = data.Length;
for (; ;)
{
while (i < len && s_xmlCharType.IsCharData(data[i]))
{
i++;
}
if (i == len)
{
return;
}
char ch = data[i];
if (XmlCharType.IsHighSurrogate(ch))
{
if (i + 1 == len)
{
throw CreateException(SR.Xml_InvalidSurrogateMissingLowChar, invSurrogateExceptionType, 0, i + 1);
}
ch = data[i + 1];
if (XmlCharType.IsLowSurrogate(ch))
{
i += 2;
continue;
}
else
{
throw CreateInvalidSurrogatePairException(data[i + 1], data[i], invSurrogateExceptionType, 0, i + 1);
}
}
throw CreateInvalidCharException(data, i, invCharExceptionType);
}
}
internal int IsOnlyCharData(string str)
{
if (str != null)
{
for (int i = 0; i < str.Length; i++)
{
if ((charProperties[str[i]] & fCharData) == 0)
{
if (i + 1 >= str.Length || !(XmlCharType.IsHighSurrogate(str[i]) && XmlCharType.IsLowSurrogate(str[i + 1])))
{
return(i);
}
else
{
i++;
}
}
}
}
return(-1);
}
public void Write(string text)
{
if (text == null)
{
return;
}
if (_cacheAttrValue)
{
_attrValue.Append(text);
}
// scan through the string to see if there are any characters to be escaped
int len = text.Length;
int i = 0;
int startPos = 0;
char ch = (char)0;
for (;;)
{
while (i < len && _xmlCharType.IsAttributeValueChar(ch = text[i]))
{
i++;
}
if (i == len)
{
// reached the end of the string -> write it whole out
_textWriter.Write(text);
return;
}
if (_inAttribute)
{
if (ch == 0x9)
{
i++;
continue;
}
}
else
{
if (ch == 0x9 || ch == 0xA || ch == 0xD || ch == '"' || ch == '\'')
{
i++;
continue;
}
}
// some character that needs to be escaped is found:
break;
}
char[] helperBuffer = new char[256];
for (;;)
{
if (startPos < i)
{
WriteStringFragment(text, startPos, i - startPos, helperBuffer);
}
if (i == len)
{
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 < len)
{
WriteSurrogateChar(text[++i], ch);
}
else
{
throw new Exception("throw XmlConvert.CreateInvalidSurrogatePairException(text[i], ch);");
}
}
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++;
startPos = i;
while (i < len && _xmlCharType.IsAttributeValueChar(ch = text[i]))
{
i++;
}
}
}
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++;
}
}
private static string EncodeName(string name, /*Name_not_NmToken*/ bool first, bool local)
{
if (string.IsNullOrEmpty(name))
{
return(name);
}
StringBuilder bufBld = null;
int length = name.Length;
int copyPosition = 0;
int position = 0;
int underscorePos = name.IndexOf('_');
MatchCollection mc = null;
IEnumerator en = null;
if (underscorePos >= 0)
{
if (s_encodeCharPattern == null)
{
s_encodeCharPattern = new Regex("(?<=_)[Xx]([0-9a-fA-F]{4}|[0-9a-fA-F]{8})_");
}
mc = s_encodeCharPattern.Matches(name, underscorePos);
en = mc.GetEnumerator();
}
int matchPos = -1;
if (en != null && en.MoveNext())
{
global::System.Text.RegularExpressions.Match m = (global::System.Text.RegularExpressions.Match)en.Current;
matchPos = m.Index - 1;
}
if (first)
{
if ((!s_xmlCharType.IsStartNCNameCharXml4e(name[0]) && (local || (!local && name[0] != ':'))) ||
matchPos == 0)
{
if (bufBld == null)
{
bufBld = new StringBuilder(length + 20);
}
bufBld.Append("_x");
if (length > 1 && XmlCharType.IsHighSurrogate(name[0]) && XmlCharType.IsLowSurrogate(name[1]))
{
int x = name[0];
int y = name[1];
Int32 u = XmlCharType.CombineSurrogateChar(y, x);
bufBld.Append(u.ToString("X8", CultureInfo.InvariantCulture));
position++;
copyPosition = 2;
}
else
{
bufBld.Append(((Int32)name[0]).ToString("X4", CultureInfo.InvariantCulture));
copyPosition = 1;
}
bufBld.Append('_');
position++;
if (matchPos == 0)
{
if (en.MoveNext())
{
global::System.Text.RegularExpressions.Match m = (global::System.Text.RegularExpressions.Match)en.Current;
matchPos = m.Index - 1;
}
}
}
}
for (; position < length; position++)
{
if ((local && !s_xmlCharType.IsNCNameCharXml4e(name[position])) ||
(!local && !s_xmlCharType.IsNameCharXml4e(name[position])) ||
(matchPos == position))
{
if (bufBld == null)
{
bufBld = new StringBuilder(length + 20);
}
if (matchPos == position)
{
if (en.MoveNext())
{
global::System.Text.RegularExpressions.Match m = (global::System.Text.RegularExpressions.Match)en.Current;
matchPos = m.Index - 1;
}
}
bufBld.Append(name, copyPosition, position - copyPosition);
bufBld.Append("_x");
if ((length > position + 1) && XmlCharType.IsHighSurrogate(name[position]) && XmlCharType.IsLowSurrogate(name[position + 1]))
{
int x = name[position];
int y = name[position + 1];
Int32 u = XmlCharType.CombineSurrogateChar(y, x);
bufBld.Append(u.ToString("X8", CultureInfo.InvariantCulture));
copyPosition = position + 2;
position++;
}
else
{
bufBld.Append(((Int32)name[position]).ToString("X4", CultureInfo.InvariantCulture));
copyPosition = position + 1;
}
bufBld.Append('_');
}
}
if (copyPosition == 0)
{
return(name);
}
else
{
if (copyPosition < length)
{
bufBld.Append(name, copyPosition, length - copyPosition);
}
return(bufBld.ToString());
}
}
