/*************************/
/*** Private Functions ***/
/*************************/
/// <summary>
/// Add() - Adds a command to the command dictionary. The command is <br/>
/// added to the dictionary with its name as the key. The command is <br/>
/// retrieved from the dictionary each time it is needed for parsing.
/// </summary>
/// <param name="command">New command to populate the dictionary</param>
private void Add(ProgCmd command)
{
if (command != null)
{
cmdDict.Add(command.CommandName, command);
}
}
public ProgCmd GetProgCmd(string keyword)
{
ProgCmd command = null;
if (!cmdDict.TryGetValue(keyword, out command))
{
command = null;
}
return(command);
}
public ProgNode GetCommand()
{
ProgNode node = null;
string variable = parser.GetToken().GetString();
string keyword = variable.ToUpper();
ProgCmd command = parser.GetProgCmd(keyword);
if (command != null)
{
node = command.Interpret(this);
}
else
{
Token assignToken = parser.GetToken();
ProgNode expression = Expression();
node = new ProgNodeAssign(variable, expression);
}
return(node);
}
