public static string VerifyTOKEN(string token)
{
if (token == null)
{
throw new ArgumentNullException("token");
}
if (token.Length == 0)
{
return(token);
}
if (XmlChar.IsWhitespace(token [0]) ||
XmlChar.IsWhitespace(token [token.Length - 1]))
{
throw new XmlException("Whitespace characters (#xA, #xD, #x9, #x20) are not allowed as leading or trailing whitespaces of xs:token.");
}
for (int i = 0; i < token.Length; i++)
{
if (XmlChar.IsWhitespace(token [i]) && token [i] != ' ')
{
throw new XmlException("Either #xA, #xD or #x9 are not allowed inside xs:token.");
}
}
return(token);
}
public static string VerifyWhitespace(string content)
{
if (content == null)
{
throw new ArgumentNullException("content");
}
if (XmlChar.IsWhitespace(content))
{
return(content);
}
throw new XmlException(string.Format("'{0}' is not whitespace", content));
}
public static bool IsWhitespaceChar(char ch)
{
return(XmlChar.IsWhitespace(ch));
}