{

try

{

//test for Stream class

//Stream stream;

//std::cout << "Input text data and terminate by Control + D:\n";

//char* input = stream.readInput();

Stream stream("ag kar jf kar");

//test for Sink class

Sink sinkStream(&stream);

sinkStream.printEverything();

//test for ConstStream class

ConstStream constantStream("helloworld123");

//test for FileStream class

FileStream streamFromFile("WriteFromFile.txt");

//test for FileSink class

FileSink streamToFile(&stream, "Text.txt");

streamToFile.saveTextDataToFile();

//test for WordFilter class

WordFilter wordFilt(&stream, "kar");

std::cout << wordFilt.applyFilter(&stream) << std::endl;

//sinkStream.printEverything();

//test for SequenceReplaceFilter

Stream secondStream("i weight hey no more weight key weight");

SequenceReplaceFilter replaceFilter(&secondStream, "weight", "haha");

char* result = replaceFilter.applyFilter(&secondStream);

std::cout << result << std::endl;

free(result);

std::cout << "work" << std::endl;

//test for PairFilter

Stream thirdStream("i weight hey no more weight key weight");

SequenceReplaceFilter replaceFilterSecond(&thirdStream, "weight", "haha");

WordFilter wordFilterSecond(&stream, "haha");

PairFilter pairFilter(&stream, &replaceFilterSecond, &wordFilterSecond);

char* resultSecond = pairFilter.applyFilter(&thirdStream);

std::cout << resultSecond << std::endl;

//test for operators

Stream fourthStream("caradf truck");

WordFilter wordFilterThird(&fourthStream, "truck");

std::cout << wordFilterThird.applyFilter(&fourthStream) << std::endl;

std::cout << wordFilterThird.operator*() << std::endl;

wordFilterThird.operator++();

wordFilterThird.operator++();

std::cout << wordFilterThird.operator[](-1) << std::endl;

char* res = wordFilterThird.operator()(1, 3);

std::cout << res << std::endl;

free(res);

}

catch(const std::exception& ex)

{

std::cout << ex.what() << std::endl;

}

return 0;

}