void Compressor::compress(string in, string out)
{
size = Utils::getFileSize(in);
//cout << "size : " << size << endl;
char c;
string temp = "";
ifstream infile;
infile.open(in, ios::binary | ios::in);
while(!infile.eof()) {
infile.read(&c, 1);
charCpt++;
float f = (float)charCpt / (float)size;
if( f * 100 > nbBar) {
nbBar++;
Utils::drawProgressBar("compressing : ", nbBar);
}
if(index >= pow(2, ENCODING_LENGTH)) {
m->clear();
initDico();
index = 256;
}
temp = pair(w, c);
if(m->find(temp) != m->end()) {
w = temp;
} else {
m->insert(std::pair<string, long>(temp, (long)index));
index++;
long n = m->at(w);
//cout << "c : " << n << endl;
if(huffman) {
chars->push_back(n);
computeOufman(n);
} else {
result += std::bitset<ENCODING_LENGTH>(n).to_string();
}
w = pair("", c);
}
}
if(huffman) {
computeOufman(m->at(w));
chars->push_back(m->at(w));
Huffman *h = new Huffman(oufman);
result = h->convertToString(chars);
} else {
result += std::bitset<ENCODING_LENGTH>(m->at(w)).to_string();
string encodingLength = std::bitset<8>(ENCODING_LENGTH).to_string();
result = encodingLength + result;
}
writeResult(out);
}
Compressor::Compressor()
{
m = new unordered_map<string, long>;
oufman = new map<long, int>;
chars = new vector<int>;
initDico();
w = "";
result = "";
index = 256;
charCpt = 0;
nbBar = 0;
}
Twig *initTwig(const char *cachePath, bool debug)
{
Template *env;
env = (Template*)malloc(sizeof(*env));
if(env==NULL)
printf("Error env malloc\n");
env->debug=debug;
env->cache=alignhash_init(Twig_Hash);
env->filter=initDico(TWIG_ANY_ENCODING);
addFilter(env, "nl2br", &interpret_nl2br);
return env;
}
