// Initializes the board by getting the puzzle from a csv file.
// 0 means empty (an example of a row: 0,0,1,0,0,2,0,0,3)
void Board::read(string filename) {
std::ifstream inFile(filename.c_str(), std::ios::in);
// If the file does not exist, throw an error.
if (!inFile) throw NoInputFile();
// Temporary strings to read input.
string temp;
vector<string> lines;
// Read all lines first and store them in an array,
while (getline(inFile, temp)) lines.push_back(temp);
if (lines.size() != size) throw BadInput(); // Wrong row counts.
// For each line, extract values using string streams and set values.
for (short i = 0; i < size; i++) {
std::istringstream ss(lines[i]);
vector<unsigned char> values;
while (getline(ss, temp, ','))
values.push_back(std::atoi(temp.c_str()));
// Check for wrong col counts.
if (values.size() != size) throw BadInput();
for (short j = 0; j < size; j++) {
if (values[j] < 0 || values[j] > size)
throw InvalidPuzzle(); // Bad value is given.
set(i, j, values[j]);
};
};
inFile.close();
// Check for the validity of the given puzzle.
if (!ifValid()) throw InvalidPuzzle();
};
std::istream& ZipFileInput::openFile(const stromx::runtime::InputProvider::OpenMode mode)
{
if(! m_initialized)
throw WrongState("Zip file input has not been initialized.");
if(m_currentFile)
throw WrongState("File has already been opened.");
if(! hasFile())
throw NoInputFile();
std::ios_base::openmode iosmode = std::ios_base::in;
if(mode == BINARY)
iosmode |= std::ios_base::binary;
struct zip_stat stat;
if(zip_stat(m_archiveHandle, m_currentFilename.c_str(), 0, &stat) < 0)
throw FileAccessFailed(m_currentFilename, m_archive, "Failed to access file in zip archive.");
if(stat.size == 0)
throw FileAccessFailed(m_currentFilename, m_archive, "File in zip archive has zero size.");
unsigned int fileSize = (unsigned int)(stat.size);
std::vector<char> content(fileSize);
zip_file* file = zip_fopen(m_archiveHandle, m_currentFilename.c_str(), 0);
if(! file)
throw FileAccessFailed(m_currentFilename, m_archive, "Failed to open file in zip archive.");
if((unsigned int)(zip_fread(file, &content[0], fileSize)) != fileSize)
throw FileAccessFailed(m_currentFilename, m_archive, "Failed to read file in zip archive.");
m_currentFile = new std::istringstream(std::string(&content[0], fileSize), iosmode);
return *m_currentFile;
}
