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#pragma once
#include <iostream>
#include <string>
#include <sstream>
#include <fstream>
#include <vector>
#include <map>
#include "dummyvector.h"
using namespace std;
namespace G {
struct NT {
string symbol;
unsigned int index;
NT() {};
NT(string& s);
string repr() const;
friend ostream& operator<<(ostream& os, const NT& t);
};
struct T {
string word;
T(string& s);
string repr() const;
friend ostream& operator<<(ostream& os, const NT& nt);
};
enum item_type {
NON_TERMINAL,
TERMINAL
};
struct Item {
item_type type;
NT* nt;
T* t;
Item(string& s);
string repr() const;
friend ostream& operator<<(ostream& os, const Item& i);
};
struct Rule {
NT* lhs;
vector<Item*> rhs;
vector<Item*> target;
//map<int,int> map;
size_t arity;
DummyVector f;
Rule() {};
Rule(string& s);
string repr() const;
friend ostream& operator<<(ostream& os, const Rule& r);
};
struct Grammar {
vector<Rule*> rules;
vector<Rule*> flat;
vector<Rule*> start_nt;
vector<Rule*> start_t;
Grammar(string fn);
void add_glue();
void add_pass_through();
friend ostream& operator<<(ostream& os, const Grammar& g);
};
} // namespace
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