ItemSet Parse(std::istream& in)
{
ItemSet items;
std::string currentItem;
int openBraces = 0;
while (!in.eof() && !in.fail())
{
std::string currentLine;
std::getline(in, currentLine);
auto commentPos = currentLine.find('#');
if (commentPos != std::string::npos)
currentLine.erase(commentPos); // remove any comment
if (!currentItem.empty())
currentItem.push_back('\n'); // preserve new-lines within an item
currentItem += currentLine;
openBraces += std::count(currentLine.begin(), currentLine.end(), '{');
openBraces -= std::count(currentLine.begin(), currentLine.end(), '}');
if (openBraces <= 0)
{
auto lastCharPos = currentItem.find_last_not_of(" \t");
if (lastCharPos != std::string::npos && currentItem[lastCharPos] != '=')
{
auto parsedItem = ParseItem(currentItem);
if (parsedItem)
items.push_back(std::move(parsedItem));
currentItem.clear();
openBraces = 0;
}
}
}
return items;
}
