add cursor up for last command #587

This commit is contained in:
MichaelDvP
2020-10-29 17:40:07 +01:00
parent 049af36bc8
commit ec19692df2
2 changed files with 24 additions and 1 deletions

View File

@@ -61,10 +61,12 @@ void Shell::start() {
uuid::log::Logger::register_handler(this, uuid::log::Level::DEBUG); // added by proddy
//uuid::log::Logger::register_handler(this, uuid::log::Level::INFO); // added by proddy
#else
uuid::log::Logger::register_handler(this, uuid::log::Level::NOTICE);
uuid::log::Logger::register_handler(this, uuid::log::Level::INFO);
#endif
line_buffer_.reserve(maximum_command_line_length_);
oldline_.reserve(maximum_command_line_length_);
oldline_.clear();
display_banner();
display_prompt();
shells_.insert(shared_from_this());
@@ -175,6 +177,9 @@ void Shell::loop_normal() {
case '\x0A':
// Line feed (^J)
if (previous_ != '\x0D') {
if (!line_buffer_.empty()) {
oldline_ = line_buffer_;
}
process_command();
}
break;
@@ -187,6 +192,9 @@ void Shell::loop_normal() {
break;
case '\x0D':
if (!line_buffer_.empty()) {
oldline_ = line_buffer_;
}
// Carriage return (^M)
process_command();
break;
@@ -211,6 +219,20 @@ void Shell::loop_normal() {
line_buffer_.push_back(c);
write((uint8_t)c);
}
// cursor up, get last command
if ((c == 'A') && (previous_ == '[')) {
erase_current_line();
prompt_displayed_ = false;
line_buffer_ = oldline_;
display_prompt();
}
// cursor back, forw or down: Delete line
if (((c == 'B') || (c == 'C') || (c == 'D')) && (previous_ == '[')) {
erase_current_line();
prompt_displayed_ = false;
line_buffer_.clear();
display_prompt();
}
}
break;
}

View File

@@ -905,6 +905,7 @@ class Shell : public std::enable_shared_from_this<Shell>, public uuid::log::Hand
std::string line_buffer_; /*!< Command line buffer. Limited to maximum_command_line_length() bytes. @since 0.1.0 */
size_t maximum_command_line_length_ = MAX_COMMAND_LINE_LENGTH; /*!< Maximum command line length in bytes. @since 0.6.0 */
unsigned char previous_ = 0; /*!< Previous character that was entered on the command line. Used to detect CRLF line endings. @since 0.1.0 */
std::string oldline_; /*!< old Command line buffer.*/
Mode mode_ = Mode::NORMAL; /*!< Current execution mode. @since 0.1.0 */
std::unique_ptr<ModeData> mode_data_ = nullptr; /*!< Data associated with the current execution mode. @since 0.1.0 */
bool stopped_ = false; /*!< Indicates that the shell has been stopped. @since 0.1.0 */