// Verification method for XML whitespace characters as defined in XML spec production [3] S.
// Throws XmlException if invalid character is found, otherwise returns the input string.
public static string VerifyWhitespace(string content)
{
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
// returns the position of invalid character or -1
int pos = s_xmlCharType.IsOnlyWhitespaceWithPos(content);
if (pos != -1)
{
throw new XmlException(SR.Xml_InvalidWhitespaceCharacter, XmlException.BuildCharExceptionArgs(content, pos), 0, pos + 1);
}
return(content);
}
internal static string VerifyQName(string name, ExceptionType exceptionType)
{
if (name == null || name.Length == 0)
{
throw new ArgumentNullException(nameof(name));
}
int colonPosition = -1;
int endPos = ValidateNames.ParseQName(name, 0, out colonPosition);
if (endPos != name.Length)
{
throw CreateException(SR.Xml_BadNameChar, XmlException.BuildCharExceptionArgs(name, endPos), exceptionType, 0, endPos + 1);
}
return(name);
}
internal static string VerifyNMTOKEN(string name, ExceptionType exceptionType)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (name.Length == 0)
{
throw CreateException(SR.Xml_InvalidNmToken, name, exceptionType);
}
int endPos = ValidateNames.ParseNmtokenNoNamespaces(name, 0);
if (endPos != name.Length)
{
throw CreateException(SR.Xml_BadNameChar, XmlException.BuildCharExceptionArgs(name, endPos), exceptionType, 0, endPos + 1);
}
return(name);
}
internal static Exception CreateInvalidNameCharException(string name, int index, ExceptionType exceptionType)
{
return(CreateException(index == 0 ? SR.Xml_BadStartNameChar : SR.Xml_BadNameChar, XmlException.BuildCharExceptionArgs(name, index), exceptionType, 0, index + 1));
}
internal static Exception CreateInvalidCharException(char invChar, char nextChar, ExceptionType exceptionType)
{
return(CreateException(SR.Xml_InvalidCharacter, XmlException.BuildCharExceptionArgs(invChar, nextChar), exceptionType));
}
internal static Exception CreateInvalidCharException(string data, int invCharPos, ExceptionType exceptionType)
{
return(CreateException(SR.Xml_InvalidCharacter, XmlException.BuildCharExceptionArgs(data, invCharPos), exceptionType, 0, invCharPos + 1));
}