driver.cpp

#include "driver.hh"
#include "parser.hh"

#include <help/Visitor.h>


Driver::Driver () :
    trace_parsing(false),
    trace_scanning(false),
    location_debug(false),
    scanner(*this), parser(scanner, *this) {
}


int Driver::parse (const std::string& f) {
  file = f;
  // initialize location positions
  location.initialize(&file);
  scan_begin();
  parser.set_debug_level(trace_parsing);
  int res = parser();
  scan_end();
  return res;
}

void Driver::scan_begin () {
  scanner.set_debug(trace_scanning);
  if (file.empty() || file == "-") {
  } else {
    stream.open(file);
    std::cerr << "File name is " << file << std::endl;

    // Restart scanner resetting buffer!
    scanner.yyrestart(&stream);
  }
}

void Driver::scan_end () {
  stream.close();
}

void Driver::execute () {
  Visitor visitor;
  visitor.visit(program);
}