void parser_t::Jump()
{
parsetree.push(NT_Jump);
if(scanner.next_token() == T_goto)
{
eat_token(T_goto);
scanner.next_token();
std::string tmp = scanner.get_token_value();
eat_token(T_num);
//If there's an if statement, handle it it.
if(scanner.next_token() == T_if) {
eat_token(T_if);
current = current + "if(";
Expression();
current = current + " != 0) { ";
current = current + "goto L" + tmp + "; }\n ";
}
else {
current = current + " goto L" + tmp + ";\n ";
}
}
else { syntax_error(NT_Jump); }
parsetree.pop();
}
void parser_t::Factor()
{
parsetree.push(NT_Factor);
if(scanner.next_token() == T_num)
{
current = current + scanner.get_token_value();
// printf("%s\n", current.c_str());
eat_token(T_num);
}
else if(scanner.next_token() == T_m)
{
eat_token(T_m);
eat_token(T_opensquare);
current = current + "m[";
Expression();
eat_token(T_closesquare);
current = current + "]";
}
else { syntax_error(NT_Factor); }
parsetree.pop();
}
void parser_t::Label()
{
parsetree.push(NT_Label);
if(scanner.next_token() == T_label)
{
eat_token(T_label);
current = c_code_main;
scanner.next_token();
current = current + "\n L" + scanner.get_token_value() + ":\n ";
// printf("current:\n%s\n", current.c_str());
eat_token(T_num);
eat_token(T_colon);
LabelStatements();
// printf("current:\n%s\n", current.c_str());
c_code_main = current;
current = c_code_main;
printf("%s\n", c_code_main.c_str());
}
else { syntax_error(NT_Label); }
parsetree.pop();
}