mateparser.cc

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#include "mateparser.h"
#include <sstream>
#include <iostream>

using namespace std;

MateParser::MateParser() : pInFile(0)
{
  
}

MateParser::~MateParser()
{
  if ( pInFile ) {
    pInFile->close();
    delete pInFile;
  }
}

void MateParser::set_file(string file_name)
{
  if ( pInFile ) {
    //Parsing a new file before previous one finished
    cleanup();
  }
  pInFile = new ifstream( file_name.c_str() );
  line_num = 0;
}

bool MateParser::parse_line(string& name_1, string& name_2, size_t& length)
{
  if ( pInFile ) {//File handle open
    string line;
    if ( getline(*pInFile, line) ) {
      line_num++;
      istringstream is(line);
      if ( !(is>>name_1 && is>>name_2 && is>> length) ) {
        cerr<<"MateParser::parse_line(), input error"<<endl;
        cerr<<"line "<<line_num<<": "<<line<<"\nis ill formated"<<endl;
        cleanup();
        return false;
      }
      
      return true;
    }
    //Nothing more to do
    cleanup();
  }
  else {
    cerr<<"No file handle in MateParser::parse_line()"<<endl;
  }
  return false;
}

void MateParser::cleanup()
{
  if  (pInFile) {
    
    pInFile->close();
    delete pInFile;
    pInFile = 0;

  }
  
}

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