Method process_injected_command

Marlin/src/gcode/queue.cpp:166–188

* Process the next "immediate" command from SRAM. * Return 'true' if any commands were processed. */

 * Return 'true' if any commands were processed.
 */
bool GCodeQueue::process_injected_command() {
  if (injected_commands[0] == '\0') return false;

  char c;
  size_t i = 0;
  while ((c = injected_commands[i]) && c != '\n') i++;

  // Execute a non-blank command
  if (i) {
    injected_commands[i] = '\0';
    parser.parse(injected_commands);
    gcode.process_parsed_command();
  }

  // Copy the next command into place
  for (
    uint8_t d = 0, s = i + !!c;                     // dst, src
    (injected_commands[d] = injected_commands[s]);  // copy, exit if 0
    d++, s++                                        // next dst, src
  );

  return true;
}

/**
 * Enqueue and return only when commands are actually enqueued.