public static string VerifyQName(string name, ExceptionType exceptionType)
{
if (string.IsNullOrEmpty(name))
{
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", XmlExceptionHelper.BuildCharExceptionArgs(name, endPos), exceptionType, 0, endPos + 1);
}
return(name);
}
/// <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(SR.Format("SR.Xml_BadNameChar", XmlExceptionHelper.BuildCharExceptionArgs(':', '\0')), nameof(name));
}
else
{
prefix = name.Substring(0, colonPos);
colonPos++; // move after colon
lname = name.Substring(colonPos, name.Length - colonPos);
}
}
/// <summary>
/// Throws an invalid name exception.
/// </summary>
/// <param name="s">String that was parsed.</param>
/// <param name="offsetStartChar">Offset in string where parsing began.</param>
/// <param name="offsetBadChar">Offset in string where parsing failed.</param>
internal static void ThrowInvalidName(string s, int offsetStartChar, int offsetBadChar)
{
// If the name is empty, throw an exception
if (offsetStartChar >= s.Length)
{
throw new XmlException("SR.Xml_EmptyName");
}
Debug.Assert(offsetBadChar < s.Length);
if (xmlCharType.IsNCNameSingleChar(s[offsetBadChar]) && !XmlCharType.Instance.IsStartNCNameSingleChar(s[offsetBadChar]))
{
// The error character is a valid name character, but is not a valid start name character
throw new XmlException(SR.Format("SR.Xml_BadStartNameChar", XmlExceptionHelper.BuildCharExceptionArgs(s, offsetBadChar)));
}
else
{
// The error character is an invalid name character
throw new XmlException(SR.Format("SR.Xml_BadNameChar", XmlExceptionHelper.BuildCharExceptionArgs(s, offsetBadChar)));
}
}
public static Exception CreateInvalidCharException(string data, int invCharPos, ExceptionType exceptionType)
{
return(CreateException("SR.Xml_InvalidCharacter", XmlExceptionHelper.BuildCharExceptionArgs(data, invCharPos), exceptionType, 0, invCharPos + 1));
}