main.cpp

#include "LRParser.hpp"
#include "Grammar.hpp"
#include "Production.hpp"
#include "Symbol.hpp"
#include "LexText.hpp"

#include <iostream>

std::string const TEST_FILEPATH="testLex.txt";

int main(int const argc, char const * const * const argv)
{
  Grammar g;
  /*
  g |= NT("goal") >>= NT("expr");
  g |= NT("expr") >>= NT("term") + T("+") + NT("expr") | NT("term");
  g |= NT("term") >>= NT("factor") + T("*") + NT("term") | NT("factor");
  g |= NT("factor") >>= T("0") | T("1") | T("2") | T("3") | T("4") | T("5") | T("6") | T("7") | T("8") | T("9");
  */

  g |= NT("goal") >>= NT("expr");
  g |= NT("expr") >>= NT("term") + T("+") + NT("expr");
  g |= NT("expr") >>= NT("term");
  g |= NT("term") >>= NT("factor") + T("*") + NT("term");
  g |= NT("term") >>= NT("factor");
  g |= NT("factor") >>= T("id");

  /*
  g |= NT("E") >>= NT("E") + T("*") + NT("B");
  g |= NT("E") >>= NT("E") + T("+") + NT("B");
  g |= NT("E") >>= NT("B");
  g |= NT("B") >>= T("0");
  g |= NT("B") >>= T("1");
  */

  //g |= NT("B") >>= T("hello") + T(" ") + T("world") | T("goodbye") + T(" ") + T("world");

  /*
  g |= NT("start_$") >>= NT("start");
  g |= NT("start") >>= NT("start") + NT("expr");
  g |= NT("start");
  g |= NT("expr") >>= T("NR");
  g |= NT("expr") >>= NT("expr") + T("+") + NT("expr");
  */

  LRParser p(LRTable::Type::LR, 1, g);
  LexText plt(TEST_FILEPATH);
#ifndef NDEBUG
  std::cout << "====================----- Parsing -----====================" << std::endl;
#endif
  if(p.parse(plt))
  {
    std::cout << "Parsing success." << std::endl;
  }
#ifndef NDEBUG
  std::cout << "==================================================" << std::endl;
#endif

#ifndef NDEBUG
  std::cout << "====================----- " << TEST_FILEPATH << " -----====================" << std::endl;
  LexText lt(TEST_FILEPATH);
  Symbol s=END();
  do
  {
    s = lt.pop();
    std::cout << s.toString() << " ";
  }
  while(s != END());
  std::cout << std::endl;
  std::cout << "==================================================" << std::endl;

  
  std::cout << "====================----- Grammar -----====================" << std::endl;
  std::cout << g.toString();
  std::cout << "==================================================" << std::endl;
#endif

  return 0;
}