Function unescape_string

server/start_application.cpp:37–97

children_manager::~children_manager() {}

static std::vector<std::string> unescape_string(const std::string & app_string)
{
	std::vector<std::string> app;
	app.emplace_back();

	bool seen_backslash = false;
	bool seen_single_quote = false;
	bool seen_double_quote = false;
	for (auto c: app_string)
	{
		if (seen_backslash)
		{
			app.back() += c;
			seen_backslash = false;
		}
		else if (seen_single_quote)
		{
			if (c == '\'')
				seen_single_quote = false;
			else if (c == '\\')
				seen_backslash = true;
			else
				app.back() += c;
		}
		else if (seen_double_quote)
		{
			if (c == '"')
				seen_double_quote = false;
			else if (c == '\\')
				seen_backslash = true;
			else
				app.back() += c;
		}
		else
		{
			switch (c)
			{
				case '\\':
					seen_backslash = true;
					break;
				case '\'':
					seen_single_quote = true;
					break;
				case '"':
					seen_double_quote = true;
					break;
				case ' ':
					if (app.back() != "")
						app.emplace_back();
					break;
				default:
					app.back() += c;
			}
		}
	}

	if (app.back() == "")
		app.pop_back();