Function popPath

fdbmonitor/fdbmonitor.cpp:318–344

Removes the last component from a path string (if possible) and returns the result with one trailing separator.

// Removes the last component from a path string (if possible) and returns the result with one trailing separator.
std::string popPath(const std::string& path) {
	int i = path.size() - 1;
	// Skip over any trailing separators
	while (i >= 0 && path[i] == CANONICAL_PATH_SEPARATOR) {
		--i;
	}
	// Skip over non separators
	while (i >= 0 && path[i] != CANONICAL_PATH_SEPARATOR) {
		--i;
	}
	// Skip over trailing separators again
	bool foundSeparator = false;
	while (i >= 0 && path[i] == CANONICAL_PATH_SEPARATOR) {
		--i;
		foundSeparator = true;
	}

	if (foundSeparator) {
		++i;
	} else {
		// If absolute then we popped off the only path component so return "/"
		if (!path.empty() && path.front() == CANONICAL_PATH_SEPARATOR) {
			return "/";
		}
	}
	return path.substr(0, i + 1);
}

std::string abspath(std::string const& path, bool resolveLinks = true) {
	if (path.empty()) {