Method ParseParameters

src/util/system.cpp:294–373

}

bool ArgsManager::ParseParameters(int argc, const char* const argv[], std::string& error)
{
    LOCK(cs_args);
    m_settings.command_line_options.clear();

    for (int i = 1; i < argc; i++) {
        std::string key(argv[i]);

#ifdef MAC_OSX
        // At the first time when a user gets the "App downloaded from the
        // internet" warning, and clicks the Open button, macOS passes
        // a unique process serial number (PSN) as -psn_... command-line
        // argument, which we filter out.
        if (key.substr(0, 5) == "-psn_") continue;
#endif

        if (key == "-") break; //bitcoin-tx using stdin
        std::string val;
        size_t is_index = key.find('=');
        if (is_index != std::string::npos) {
            val = key.substr(is_index + 1);
            key.erase(is_index);
        }
#ifdef WIN32
        key = ToLower(key);
        if (key[0] == '/')
            key[0] = '-';
#endif

        if (key[0] != '-') {
            if (!m_accept_any_command && m_command.empty()) {
                // The first non-dash arg is a registered command
                std::optional<unsigned int> flags = GetArgFlags(key);
                if (!flags || !(*flags & ArgsManager::COMMAND)) {
                    error = strprintf("Invalid command '%s'", argv[i]);
                    return false;
                }
            }
            m_command.push_back(key);
            while (++i < argc) {
                // The remaining args are command args
                m_command.push_back(argv[i]);
            }
            break;
        }

        // Transform --foo to -foo
        if (key.length() > 1 && key[1] == '-')
            key.erase(0, 1);

        // Transform -foo to foo
        key.erase(0, 1);
        KeyInfo keyinfo = InterpretKey(key);
        std::optional<unsigned int> flags = GetArgFlags('-' + keyinfo.name);

        // Unknown command line options and command line options with dot
        // characters (which are returned from InterpretKey with nonempty
        // section strings) are not valid.