protected static void AddTerminalTo(ref Grammar.Grammar grammar, string line)
{
string _line = line;
LiteralGrammarElement addKeyword = new LiteralGrammarElement("Add");
if (addKeyword.Validate(ref _line, true).Result)
{
if (_line.IndexOf(" To ") != -1)
{
string to = _line.Substring(_line.IndexOf("To") + 2).Trim();
if (!grammar.Terminals.ContainsKey(to))
{
throw new InfinityGrammarScriptParseError("Terminal not found to perform addition of terminals - " + to, _line);
}
_line = _line.Substring(0, _line.IndexOf("To")).Trim();
string[] _terminals = _line.Split(new char[] { ' ', ',' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string _terminal in _terminals)
{
if (grammar.Terminals.ContainsKey(_terminal))
{
grammar.AddTerminalTo(_terminal, to);
}
else
{
throw new InfinityGrammarScriptParseError("No such terminal to add to - " + to + " : " + _terminal, _line);
}
}
}
else
{
throw new InfinityGrammarScriptParseError("Add statement improperly formed. Missing 'To' keyword.", _line);
}
}
else
{
throw new InfinityGrammarScriptParseError("Please check whether you have typed the correct syntax.", _line);
}
}
