shell_prompt.cpp

/*
 * uuid-console - Microcontroller console shell
 * Copyright 2019  Simon Arlott
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include <uuid/console.h>
 
#include <string>
 
namespace uuid {
 
namespace console {
 
void Shell::display_banner() {
 
}
 
std::string Shell::hostname_text() {
    return std::string{};
}
 
std::string Shell::context_text() {
    return std::string{};
}
 
std::string Shell::prompt_prefix() {
    return std::string{};
}
 
std::string Shell::prompt_suffix() {
    return std::string{'$'};
}
 
void Shell::end_of_transmission() {
    if (idle_timeout_ > 0) {
        println();
        stop();
    }
}
 
void Shell::display_prompt() {
    switch (mode_) {
    case Mode::DELAY:
    case Mode::BLOCKING:
        break;
 
    case Mode::PASSWORD:
        print(reinterpret_cast<Shell::PasswordData*>(mode_data_.get())->password_prompt_);
        break;
 
    case Mode::NORMAL:
        std::string hostname = hostname_text();
        std::string context = context_text();
 
        print(prompt_prefix());
        if (!hostname.empty()) {
            print(hostname);
            print(' ');
        }
        if (!context.empty()) {
            print(context);
            print(' ');
        }
        print(prompt_suffix());
        print(' ');
        print(line_buffer_);
        prompt_displayed_ = true;
        break;
    }
}
 
} // namespace console
 
} // namespace uuid