header extension bad way

[IgorTheSimplifier]

trimming your extension is bad way. You need to add whole boost just to perform one action.
From the structure of your algorithm is way better to change it in such way (no need for boos)

vector ext;
for (int i = 4; i < 8; i++)
{
if (header[i] == ' ')
{
break;
}
ext.push_back(header[i]);
}

mExtension = std::string(ext.begin(), ext.end());

[danielcardeenas]

Feel free to make a pull request. I did this when i was in school, my code practices weren't the best