if (start < 0) {

start = qrand() % text.length();

}

int end = start + lenghtInWords;

if (end <= text.length()) {

QStringList res = text.mid(start, lenghtInWords);

return res.join(" ");

} else {

QStringList res1 = text.mid(start, text.length()-start);

QStringList res2 = text.mid(0, end % text.length());

return (res1 + res2).join(" ");

}

// for each string lenght maps the number of strings tested

QMap<int, int> triesMap;

// for each string length maps the number of correct test

QMap<int, int> correctMap;

// the following length variable indicates the length in words

for (int length = text.length() / 3; length > 0; --length) {

for (int i = 0; i < text.length(); ++i) {

QString substr = subString(length, i);

if (substr.length() < 3) continue;

QList<QPair<Language,double> > guessedLanguages =

languageGuesser()->identify(substr);

triesMap[substr.size()] += 1;

if (!guessedLanguages.empty()) {

correctMap[substr.size()] +=

Language(guessedLanguages.first().first) == language;

}

}

}

//QTextStream cin(stdin);

QTextStream cout(stdout);

cout << "Testing language " << language << "\n";

//int max = triesMap.keys().last();

int max = 71;

int tries = 0;

int correct = 0;

int startingFrom = 3;

for (int i = 3; i <= max; ++i) {

tries += triesMap.value(i);

correct += correctMap.value(i);

if ((i-2)%3 == 0 || i == max) {

// every 3 iterations and at last iteration

cout << startingFrom << "-" << i << ": " << correct << "/"

<< tries << "(" << double(correct) / tries * 100 << "%)\n";

startingFrom = i+1;

tries = 0;

correct = 0;

}

}

// foreach (int size, triesMap.keys()) {

// int tries = triesMap.value(size);

// int correct = correctMap.value(size);

// cout << size << ": " << correct << "/" << tries << "("

// << double(correct) / tries * 100 << "%)\n";

// }

cout << endl;