/*
* Returns true if it has successfully loaded all the lines from _inputFile
* without encoutering ANY format or syntax error into our parameters.
* FOR MORE INFORMATION ABOUT THE FORMAT OF THE FILE, PLEASE TAKE A LOOK AT World.txt.
*/
bool World::analyseFile()
{
Reader* reader = new Reader(inputFile);
if (reader && reader->Open())
{
try
{
//Keeps in memory the number of loops we currently have to do.
int* valueQuantity;
//Look for the first parameter: the continents.
reader->flushUntilYou('[');
reader->getMultipleFormats("[Continents=%u]\n", &valueQuantity);
//For every continent.
for (int i = 0; i < *valueQuantity; i++)
{
char* continentInfo;
int* registryValue;
//We want to put in memory the name of it until an '=' an then its reference value (a.k.a. registryValue).
reader->getMultipleFormats("%l==%u\n", &continentInfo, ®istryValue);
Continent* continentObject = new Continent(continentInfo, *registryValue);
//Once we have the infos of one, we add it to our vector.
continentsVector->push_back(continentObject);
}
//Look for the first parameter: the countries.
reader->flushUntilYou('[');
reader->getMultipleFormats("[Territories=%u]\n", &valueQuantity);
//For every country.
for (int i = 0; i < *valueQuantity; i++)
{
char* countryInfo;
int* registryValue;
//We want to put in memory the name of it until an '=' an then its reference value (a.k.a. registryValue).
reader->getMultipleFormats("%l==%u\n", &countryInfo, ®istryValue);
Country* countryObject = new Country(countryInfo, *registryValue);
//Once we have the infos of one, we add it to our vector.
countriesVector->push_back(countryObject);
}
//Look for the first parameter: the links between continents.
reader->flushUntilYou('[');
reader->getMultipleFormats("[Links=%u]\n", &valueQuantity);
numberOfLinks = *valueQuantity;
//For every link.
for (int i = 0; i < *valueQuantity; i++)
{
int *countryRegistryValue, *continentRegistryValue, *countryPositionX, *countryPositionY;
int** countryLinks = new int*[10]; //We eventually won't need more than 10 spaces.
/*
* We first select the country we want to link, and then we load its related cartesian position
* and continent and put then into several variables.
*/
reader->getMultipleFormats("%u,%u,%u,%u", &countryRegistryValue, &countryPositionX, &countryPositionY, &continentRegistryValue);
vector<Country*>* linksVector = new vector<Country*>();
//Then, as long as the line does not end, we take the values of the linked countries.
for (int j = 0; reader->byteAtActualPosition() != '\n'; j++)
{
if (j > 9) break;
reader->getMultipleFormats(",%u", &countryLinks[j]);
linksVector->push_back(countriesVector->at(*countryLinks[j]));
}
//Flush the '\n' meaning that we are ready for the next line to be loaded.
reader->flushNextByte();
//Set all the infos we just loaded to its proper country.
countriesVector->at(*countryRegistryValue)->setCartesian(*countryPositionX, *countryPositionY);
countriesVector->at(*countryRegistryValue)->setContinent(continentsVector->at(*continentRegistryValue));
countriesVector->at(*countryRegistryValue)->connect(linksVector);
}
}
//File does not respond.
catch (fileNotGood fng) {
lastErrorMessage = fng.what();
return false;
}
//Syntax error: better stop operation as soon as possible.
catch (FormatSyntax fs) {
lastErrorMessage = fs.what();
return false;
}
//Close the file whatever happened not to loose data.
reader->Close();
return true;
}
else
lastErrorMessage = "Could not open the input file.";
return false;
}
