private static Token CheckToken(Token token)
{
if (token.Type == TokenType.Group) return token;
throw new Exception("You must provide a group token to create a new expression");
}
public ExpressionItem(Token token)
{
OriginalToken = token;
}
public Expression(Token bracketToken)
: base(CheckToken(bracketToken))
{
Sequence = new List<ExpressionItem>();
numFixities = Enum.GetNames(typeof(Fixity)).Length;
}
private bool IsOpenBracket(Token t)
{
if (t.Type == TokenType.Group) return OpenBrackets.Contains(t.Content[0]);
return false;
}