tester.cpp

#include <fstream>
#include <iostream>

#include "lexicalscanner.h"
#include "tokenizer.h"
#include "tokenizer_checker.h"
#include "topdownsyntaxanalyzer.h"

using namespace std;

int main(int argc, char* argv[]) {

  cout << "Tokenizer" << endl << endl;
  if (argc < 2) {
    cerr << "tokenizer <input-file-name> [expected-output-file-name]" << endl << endl;
    cerr << "Please provide an input file name and optional expected output file. Exiting.\n";
    exit(1);
  }

  string parser_type = "rdp";

  for (int i = 2; i < argc; i++) {
      if (argv[i][0] == '-') {
          parser_type = string(argv[i]).substr(1);
      }
  }

  cout << "Processing file: " << argv[1] << endl << endl;
  string input_file_stream = argv[1];
  tokenizer tester(input_file_stream, parser_type);
  string dot = ".";
  string file_handle = input_file_stream.substr(0, input_file_stream.find(dot));
  string extension = "_output.txt";
  file_handle = file_handle + extension;
  cout << "Outputing results to the screen and to this file: " << file_handle << endl << endl;

  vector<Record> records = tester.parse_input(file_handle);

  // output locatin is passed to parse_input
  if (argc > 2 && argv[2][0] != '-') {
    cout << "comparing results to expected file: " << argv[2] << endl << endl;

    string expected_output_file = argv[2];

    tokenizer_checker checker(expected_output_file);

    int compare = checker.check_output(records);
    //compare to the output test file
    if (compare)
      cout << "The output of the lexer matches the expected output" << endl << endl;
    else cout << "The output of the lexer does not match the expected output" << endl << endl;
  }

  if (tester.getErrorHandler().hasErrors()) {
    cout << tester.getErrorHandler().toString();
    return 1;
  }

  return 0;
}