private Expression T1(Expression e1)
{
if (lexer.Current == LexicalToken.Star || lexer.Current == LexicalToken.Slash)
{
var op = OperatorExpression.FromToken(lexer.Current);
lexer.Next();
var e2 = F();
var e3 = Expression.Binary(e1, op, e2);
var e4 = T1(e3);
return(e4);
}
else
{
return(e1);
}
}
private Expression E1(Expression e1)
{
if (lexer.Current == LexicalToken.Plus || lexer.Current == LexicalToken.Minus)
{
var op = OperatorExpression.FromToken(lexer.Current);
lexer.Next();
var e2 = T();
var e3 = Expression.Binary(e1, op, e2);
var e4 = E1(e3);
return(e4);
}
else
{
return(e1);
}
}