internal override void FixDefaultNSNames()
{
String value = GetValue();
// should not allow any prefix (even empty string prefix) to be bound to the reserved namespace
if (value == XmlReservedNs.NsXmlNs)
{
throw new XmlException(Res.Xml_CanNotBindToReservedNamespace, ValueLineNum, ValueLinePos);
}
_NamespaceURI = XmlReservedNs.NsXmlNs;
//Xmlns:
if (value == String.Empty && _Name.Length > 0)
{
throw new XmlException(Res.Xml_BadAttributeChar, XmlException.BuildCharExceptionStr(' '));
}
if ((_Name.Length > 0 && _Name[0] != '_' && XmlCharType.IsLetter(_Name[0]) == false) ||
(_Name.Length > 2 && String.Compare(_Name, 0, "xml", 0, 3, true, CultureInfo.InvariantCulture) == 0))
{
throw new XmlException(Res.Xml_BadNameChar, XmlException.BuildCharExceptionStr(_Name[0]));
}
_NsMgr.AddNamespace(_Name, value);
}
internal override void FixNSNames()
{
String value = GetValue();
// should not allow any prefix (even empty string prefix) to be bound to the reserved namespace
if (value == XmlReservedNs.NsXmlNs)
{
throw new XmlException(Res.Xml_CanNotBindToReservedNamespace, ValueLineNum, ValueLinePos);
}
// This functionis only called when we encounter an attribute of the type "xmlns..."
Debug.Assert(5 <= _NameWPrefix.Length);
_NamespaceURI = XmlReservedNs.NsXmlNs;
if (5 == _NameWPrefix.Length)
{
Debug.Assert((object)_NameWPrefix == (Object)_XmlNs);
_Name = _NameWPrefix;
_Prefix = String.Empty;
// We push the prefix that the elments belonging to this namespace will use.
// We don't have to check for value == String.Empty because it is legal to have a empty value for default namespace.
_NsMgr.AddNamespace(String.Empty, value);
}
else
{
_Prefix = _Scanner.GetTextAtom(_NameWPrefix.Substring(0, 5));
_Name = _Scanner.GetTextAtom(_NameWPrefix.Substring(6));
if ((object)_Name == (Object)_XmlNs)
{
throw new XmlException(Res.Xml_ReservedNs, _Name, LineNum, LinePos);
}
//Xmlns:
if (value == String.Empty && _Name.Length > 0)
{
throw new XmlException(Res.Xml_BadNamespaceDecl, ValueLineNum, ValueLinePos);
}
if ((_Name.Length > 0 && _Name[0] != '_' && XmlCharType.IsLetter(_Name[0]) == false))
{
throw new XmlException(Res.Xml_BadNameChar, XmlException.BuildCharExceptionStr(_Name[0]));
}
if (_Name.Length > 2 && String.Compare(_Name, 0, "xml", 0, 3, true, CultureInfo.InvariantCulture) == 0)
{
throw new XmlException(Res.Xml_CanNotStartWithXmlInNamespace, ValueLineNum, ValueLinePos);
}
_NsMgr.AddNamespace(_Name, value);
}
}
private void ValidateQName(string name)
{
if (name.Length == 0)
{
throw new ArgumentException(Res.GetString(Res.Xml_EmptyName));
}
int colonPos;
int len = ValidateNames.ParseQName(name, 0, out colonPos);
if (len != name.Length)
{
string res = (len == 0 || (colonPos > -1 && len == colonPos + 1)) ? Res.Xml_BadStartNameChar : Res.Xml_BadNameChar;
throw new ArgumentException(Res.GetString(res, XmlException.BuildCharExceptionStr(name[len])));
}
}
//Called only on xmlns or xmlns: attribute
internal override void FixNSNames()
{
String value = GetValue();
// should not binding to the reserved xmlns namespace
if (value == XmlReservedNs.NsXmlNs)
{
throw new XmlException(Res.Xml_CanNotBindToReservedNamespace, ValueLineNum, ValueLinePos);
}
_NamespaceURI = XmlReservedNs.NsXmlNs;
if ((object)_NameWPrefix == (Object)_XmlNs)
{
_Prefix = String.Empty;
_Name = _NameWPrefix;
_NsMgr.AddNamespace(String.Empty, value);
}
else
{
_Prefix = _Scanner.GetTextAtom(_NameWPrefix.Substring(0, 5));
Debug.Assert((object)_Prefix == (Object)_XmlNs);
_Name = _Scanner.GetTextAtom(_NameWPrefix.Substring(6));
//xmlns:xmlns not allowed
if (((object)_Name == (Object)_XmlNs) ||
(String.Compare(_Name, "xml", false, CultureInfo.InvariantCulture) == 0))
{
throw new XmlException(Res.Xml_ReservedNs, _Name, LineNum, LinePos);
}
if (value == String.Empty && _Name.Length > 0)
{
throw new XmlException(Res.Xml_BadNamespaceDecl, ValueLineNum, ValueLinePos);
}
if ((_Name.Length > 0 && _Name[0] != '_' && XmlCharType.IsLetter(_Name[0]) == false))
{
throw new XmlException(Res.Xml_BadNameChar, XmlException.BuildCharExceptionStr(_Name[0]));
}
_NsMgr.AddNamespace(_Name, value);
}
}
/// <summary>
/// Split a QualifiedName into prefix and localname, w/o any checking.
/// (Used for XmlReader/XPathNavigator MoveTo(name) methods)
/// </summary>
internal static void SplitQName(string name, out string prefix, out string lname)
{
int colonPos = name.IndexOf(':');
if (-1 == colonPos)
{
prefix = string.Empty;
lname = name;
}
else if (0 == colonPos || (name.Length - 1) == colonPos)
{
throw new ArgumentException(Res.GetString(Res.Xml_BadNameChar, XmlException.BuildCharExceptionStr(':')), "name");
}
else
{
prefix = name.Substring(0, colonPos);
colonPos++; // move after colon
lname = name.Substring(colonPos, name.Length - colonPos);
}
}
public static Exception GetInvalidNameException(string s, int offsetStartChar, int offsetBadChar)
{
// If the name is empty, throw an exception
if (offsetStartChar >= s.Length)
{
return(new XmlException(Res.Xml_EmptyName, string.Empty));
}
Debug.Assert(offsetBadChar < s.Length);
if (XmlCharType.Instance.IsNCNameChar(s[offsetBadChar]) && !XmlCharType.Instance.IsStartNCNameChar(s[offsetBadChar]))
{
// The error character is a valid name character, but is not a valid start name character
return(new XmlException(Res.Xml_BadStartNameChar, XmlException.BuildCharExceptionStr(s[offsetBadChar])));
}
else
{
// The error character is an invalid name character
return(new XmlException(Res.Xml_BadNameChar, XmlException.BuildCharExceptionStr(s[offsetBadChar])));
}
}
internal static string VerifyNMTOKEN(string name)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
if (name == string.Empty)
{
throw new XmlException(Res.Xml_InvalidNmToken, name);
}
int nameLength = name.Length;
int position = 0;
while (position < nameLength)
{
if (!XmlCharType.IsNameChar(name[position]))
{
throw new XmlException(Res.Xml_BadNameChar, XmlException.BuildCharExceptionStr(name[position]));
}
position++;
}
return(name);
}
/// <include file='doc\XmlConvert.uex' path='docs/doc[@for="XmlConvert.VerifyNCName"]/*' />
/// <devdoc>
/// <para>
/// </para>
/// </devdoc>
public static string VerifyNCName(string name)
{
if (name == null || name == string.Empty)
{
throw new ArgumentNullException("name");
}
if (!XmlCharType.IsStartNCNameChar(name[0]))
{
throw new XmlException(Res.Xml_BadStartNameChar, XmlException.BuildCharExceptionStr(name[0]));
}
int nameLength = name.Length;
int position = 1;
while (position < nameLength)
{
if (!XmlCharType.IsNCNameChar(name[position]))
{
throw new XmlException(Res.Xml_BadNameChar, XmlException.BuildCharExceptionStr(name[position]));
}
position++;
}
return(name);
}
private void CheckWhitespace( string value ) {
int i;
if ( ( i = xmlCharType.IsOnlyWhitespaceWithPos( value ) ) != -1 ) {
Throw( Res.Xml_InvalidWhitespaceCharacter, XmlException.BuildCharExceptionStr( base.reader.Value[i] ) );
}
}
public override bool Read() {
switch ( state ) {
case State.Initial:
state = State.Interactive;
if ( base.reader.ReadState == ReadState.Initial ) {
goto case State.Interactive;
}
break;
case State.Error:
return false;
case State.InReadBinary:
FinishReadBinary();
state = State.Interactive;
goto case State.Interactive;
case State.Interactive:
if ( !base.reader.Read() ) {
return false;
}
break;
default:
Debug.Assert( false );
return false;
}
XmlNodeType nodeType = base.reader.NodeType;
if ( !checkCharacters ) {
switch ( nodeType ) {
case XmlNodeType.Comment:
if ( ignoreComments ) {
return Read();
}
break;
case XmlNodeType.Whitespace:
if ( ignoreWhitespace ) {
return Read();
}
break;
case XmlNodeType.ProcessingInstruction:
if ( ignorePis ) {
return Read();
}
break;
case XmlNodeType.DocumentType:
if ( prohibitDtd ) {
Throw( Res.Xml_DtdIsProhibited, string.Empty );
}
break;
}
return true;
}
else {
switch ( nodeType ) {
case XmlNodeType.Element:
if ( checkCharacters ) {
// check element name
ValidateQName( base.reader.Prefix, base.reader.LocalName );
// check values of attributes
if ( base.reader.MoveToFirstAttribute() ) {
do {
ValidateQName( base.reader.Prefix, base.reader.LocalName );
CheckCharacters( base.reader.Value );
} while ( base.reader.MoveToNextAttribute() );
base.reader.MoveToElement();
}
}
break;
case XmlNodeType.Text:
case XmlNodeType.CDATA:
if ( checkCharacters ) {
CheckCharacters( base.reader.Value );
}
break;
case XmlNodeType.EntityReference:
if ( checkCharacters ) {
// check name
ValidateQName( base.reader.Name );
}
break;
case XmlNodeType.ProcessingInstruction:
if ( ignorePis ) {
return Read();
}
if ( checkCharacters ) {
ValidateQName( base.reader.Name );
CheckCharacters( base.reader.Value );
}
break;
case XmlNodeType.Comment:
if ( ignoreComments ) {
return Read();
}
if ( checkCharacters ) {
CheckCharacters( base.reader.Value );
}
break;
case XmlNodeType.DocumentType:
if ( prohibitDtd ) {
Throw( Res.Xml_DtdIsProhibited, string.Empty );
}
if ( checkCharacters ) {
ValidateQName( base.reader.Name );
CheckCharacters( base.reader.Value );
string str;
str = base.reader.GetAttribute( "SYSTEM" );
if ( str != null ) {
CheckCharacters( str );
}
str = base.reader.GetAttribute( "PUBLIC" );
if ( str != null ) {
int i;
if ( ( i = xmlCharType.IsPublicId( str ) ) >= 0 ) {
Throw( Res.Xml_InvalidCharacter, XmlException.BuildCharExceptionStr( str[i] ) );
}
}
}
break;
case XmlNodeType.Whitespace:
if ( ignoreWhitespace ) {
return Read();
}
if ( checkCharacters ) {
CheckWhitespace( base.reader.Value );
}
break;
case XmlNodeType.SignificantWhitespace:
if ( checkCharacters ) {
CheckWhitespace( base.reader.Value );
}
break;
case XmlNodeType.EndElement:
if ( checkCharacters ) {
ValidateQName( base.reader.Prefix, base.reader.LocalName );
}
break;
default:
break;
}
lastNodeType = nodeType;
return true;
}
}
private void ValidateNCName(string ncname)
{
if (ncname.Length == 0)
{
throw new ArgumentException(Res.GetString(Res.Xml_EmptyName));
}
int len = ValidateNames.ParseNCName(ncname, 0);
if (len != ncname.Length)
{
throw new ArgumentException(Res.GetString(len == 0 ? Res.Xml_BadStartNameChar : Res.Xml_BadNameChar, XmlException.BuildCharExceptionStr(ncname[len])));
}
}
public override void WriteWhitespace(string ws)
{
// "checkNames" is intentional here; if false, the whitespaces are checked in XmlWellformedWriter
if (checkNames)
{
int i;
if ((i = xmlCharType.IsOnlyWhitespaceWithPos(ws)) != -1)
{
throw new ArgumentException(Res.GetString(Res.Xml_InvalidWhitespaceCharacter, XmlException.BuildCharExceptionStr(ws[i])));
}
}
writer.WriteWhitespace(ws);
}
