public static bool IsValidNCName(string ncName, out Exception err)
{
err = null;
if (ncName.Length == 0)
{
err = new XmlException("NCName can not be an empty string", null);
return(false);
}
char c = ncName[0];
if (!XmlConstructs.IsNCNameStart(c))
{
err = new XmlException("The character '" + c + "' cannot start a NCName", null);
return(false);
}
for (int i = 1; i < ncName.Length; i++)
{
c = ncName[i];
if (!XmlConstructs.IsNCNameChar(c))
{
err = new XmlException("The character '" + c + "' is not allowed in a NCName", null);
return(false);
}
}
return(true);
}
public static bool IsWhitespace(string str)
{
for (int i = 0; i < str.Length; i++)
{
if (!XmlConstructs.IsWhitespace(str[i]))
{
return(false);
}
}
return(true);
}
public static bool IsNmToken(string str)
{
if (str.Length == 0)
{
return(false);
}
for (int i = 0; i < str.Length; i++)
{
if (!XmlConstructs.IsNameChar(str[i]))
{
return(false);
}
}
return(true);
}
public static bool IsValidNmtoken(string nmtoken, out Exception err)
{
err = null;
if (nmtoken.Length == 0)
{
err = new XmlException("NMTOKEN can not be an empty string", null);
return(false);
}
foreach (char c in nmtoken)
{
if (!XmlConstructs.IsNameChar(c))
{
err = new XmlException("The character '" + c + "' is not allowed in a NMTOKEN", null);
return(false);
}
}
return(true);
}
public static int IsValidName(string name)
{
if (name.Length == 0)
{
return(0);
}
if (!XmlConstructs.IsFirstNameChar(name[0]))
{
return(0);
}
for (int i = 1; i < name.Length; i++)
{
if (!XmlConstructs.IsNameChar(name[i]))
{
return(i);
}
}
return(-1);
}
public static bool IsInvalid(int c)
{
return(!XmlConstructs.IsValid(c));
}