public SimpleParser(ILexer lexer)
{
m_startRuleToken = new Token { TokenType = TokenType.NEW_RULE };
m_tree = new Node<string>();
m_lexer = lexer;
m_consumed = new Stack<Token>();
m_err = new Queue<Error>();
// Setup rule pre-calling conditions
m_rulePreHook = name =>
{
if (m_tree.Value == null)
{
m_tree.Value = name;
return m_tree;
}
var tempNode = m_tree;
var newTopNode = m_tree.AddChild(name);
m_tree = newTopNode;
return tempNode;
};
// Setup rule post-calling conditions
m_rulePostHook = node => m_tree = node;
}
private void button2_Click(object sender, EventArgs e)
{
var token = new Token
{
TokenType = (TokenType)Enum.Parse(typeof (TokenType), cmbTokens.SelectedItem.ToString()),
Value = txtValue.Text
};
m_tokens.Add(token);
}
/// <summary>
/// Get NextToken and verify if it exists
/// </summary>
/// <param name="name">Name of expected token</param>
/// <param name="syntax">Syntax of expected token</param>
/// <returns>True if new token found, otherwise false</returns>
protected bool NextToken(String name, String syntax)
{
if (TokenStream.HasNext())
{
CurrentToken = TokenStream.NextToken();
return true;
}
else
{
//Unexpected token
throw new UnexpectedToken("Unexpected token found:", CurrentToken.GetValue().ToString(), CurrentToken.GetLine());
}
}
