public override State PushChar(char c, IParseContext context, ref string rollback)
{
INamedXObject namedObject = context.Nodes.Peek() as INamedXObject;
if (namedObject == null || namedObject.Name.Prefix != null)
{
throw new InvalidOperationException("Invalid state");
}
Debug.Assert(context.CurrentStateLength > 1 || char.IsLetter(c) || c == '_',
"First character pushed to a XmlTagNameState must be a letter.");
Debug.Assert(context.CurrentStateLength > 1 || context.KeywordBuilder.Length == 0,
"Keyword builder must be empty when state begins.");
if (XmlChar.IsWhitespace(c) || c == '<' || c == '>' || c == '/' || c == '=')
{
rollback = string.Empty;
if (context.KeywordBuilder.Length == 0)
{
context.LogError("Zero-length name.");
}
else
{
string s = context.KeywordBuilder.ToString();
int i = s.IndexOf(':');
if (i < 0)
{
namedObject.Name = new XName(s);
}
else
{
namedObject.Name = new XName(s.Substring(0, i), s.Substring(i + 1));
}
}
return(Parent);
}
if (c == ':')
{
if (context.KeywordBuilder.ToString().IndexOf(':') > 0)
{
context.LogError("Unexpected ':' in name.");
}
context.KeywordBuilder.Append(c);
return(null);
}
if (XmlChar.IsNameChar(c))
{
context.KeywordBuilder.Append(c);
return(null);
}
rollback = string.Empty;
context.LogError("Unexpected character '" + c + "' in name");
return(Parent);
}
public override State PushChar(char c, IParseContext context, ref string rollback)
{
INamedXObject namedObject = context.Nodes.Peek() as INamedXObject;
if (namedObject == null || namedObject.Name.Prefix != null)
{
throw new InvalidOperationException("Invalid state");
}
Debug.Assert(context.CurrentStateLength > 1 || char.IsLetter(c) || c == '_',
"First character pushed to a XmlTagNameState must be a letter.");
Debug.Assert(context.CurrentStateLength > 1 || context.KeywordBuilder.Length == 0,
"Keyword builder must be empty when state begins.");
if (c == ':')
{
if (namedObject.Name.Name != null || context.KeywordBuilder.Length == 0)
{
context.LogError("Unexpected ':' in name.");
return(Parent);
}
namedObject.Name = new XName(context.KeywordBuilder.ToString());
context.KeywordBuilder.Length = 0;
return(null);
}
if (XmlChar.IsWhitespace(c) || c == '<' || c == '>' || c == '/' || c == '=')
{
rollback = string.Empty;
if (context.KeywordBuilder.Length == 0)
{
context.LogError("Zero-length name.");
}
else if (namedObject.Name.Name != null)
{
//add prefix (and move current "name" to prefix)
namedObject.Name = new XName(namedObject.Name.Name, context.KeywordBuilder.ToString());
}
else
{
namedObject.Name = new XName(context.KeywordBuilder.ToString());
}
//note: parent's MalformedTagState logs an error, so skip this
//if (c == '<')
//context.LogError ("Unexpected '<' in name.");
return(Parent);
}
if (c == ':')
{
if (namedObject.Name.Name != null || context.KeywordBuilder.Length == 0)
{
context.LogError("Unexpected ':' in name.");
return(Parent);
}
namedObject.Name = new XName(context.KeywordBuilder.ToString());
context.KeywordBuilder.Length = 0;
return(null);
}
if (XmlChar.IsNameChar(c))
{
context.KeywordBuilder.Append(c);
return(null);
}
rollback = string.Empty;
context.LogError("Unexpected character '" + c + "' in name");
return(Parent);
}
