private void processEscapeSequence()

in core/src/com/jediterm/terminal/emulator/JediEmulator.java [131:235]
104 lines of code
39 McCabe index (conditional complexity)

  private void processEscapeSequence(char ch, Terminal terminal) throws IOException {
    switch (ch) {
      case '[': // Control Sequence Introducer (CSI)
        ControlSequence args = new ControlSequence(myDataStream);
        if (!args.pushBackReordered(myDataStream)) {
          try {
            boolean result = processControlSequence(args);
            if (LOG.isDebugEnabled()) {
              if (result) {
                LOG.debug("Control Sequence ({})", args.getDebugInfo());
              }
              else {
                LOG.warn("Unhandled Control Sequence ({})", args.getDebugInfo());
              }
            }
          }
          catch (Exception e) {
            LOG.error("Error processing Control Sequence ({})", args.getDebugInfo(), e);
          }
        }
        break;
      case 'D': //Index (IND)
        terminal.index();
        break;
      case 'E': //Next Line (NEL)
        terminal.nextLine();
        break;
      case 'H': //Horizontal Tab Set (HTS)
        terminal.setTabStopAtCursor();
        break;
      case 'M': // Reverse Index (RI)
        terminal.reverseIndex();
        break;
      case 'N':
        terminal.singleShiftSelect(2); //Single Shift Select of G2 Character Set (SS2). This affects next character only.
        break;
      case 'O':
        terminal.singleShiftSelect(3); //Single Shift Select of G3 Character Set (SS3). This affects next character only.
        break;
      case 'P': // Device Control String (DCS)
        SystemCommandSequence command = new SystemCommandSequence(myDataStream);

        if (!deviceControlString(command)) {
          LOG.warn("Error processing DCS: ESCP" + command);
        }
        break;
      case ']': // Operating System Command (OSC)
        processOsc();
        break;
      case '6':
        unsupported("Back Index (DECBI), VT420 and up");
        break;
      case '7': //Save Cursor (DECSC)
        terminal.saveCursor();
        break;
      case '8':
        terminal.restoreCursor();
        break;
      case '9':
        unsupported("Forward Index (DECFI), VT420 and up");
        break;
      case '=': //Application Keypad (DECKPAM)
        setModeEnabled(TerminalMode.Keypad, true);
        break;
      case '>': //Normal Keypad (DECKPNM)
        setModeEnabled(TerminalMode.Keypad, false);
        break;
      case 'F': //Cursor to lower left corner of the screen
        terminal.cursorPosition(1, terminal.getTerminalHeight());
        break;
      case 'c': // RIS (Reset to Initial State) https://vt100.net/docs/vt510-rm/RIS.html
        terminal.reset(true);
        break;
      case 'n': //Invoke the G2 Character Set as GL - locking shift 2 (LS2)
        myTerminal.mapCharsetToGL(2);
        break;
      case 'o': //Invoke the G3 Character Set as GL - locking shift 3 (LS3)
        myTerminal.mapCharsetToGL(3);
        break;
      case '|': //Invoke the G3 Character Set as GR - locking shift 3, right (LS3R)
        myTerminal.mapCharsetToGR(3);
        break;
      case '}': //Invoke the G2 Character Set as GR - locking shift 2, right (LS2R)
        myTerminal.mapCharsetToGR(2);
        break;
      case '~': //Invoke the G1 Character Set as GR - locking shift 1, right (LS1R)
        myTerminal.mapCharsetToGR(1);
        break;
      case '#':
      case '(':
      case ')':
      case '*':
      case '+':
      case '$':
      case '@':
      case '%':
      case '.':
      case '/':
      case ' ':
        processTwoCharSequence(ch, terminal);
        break;
      default:
        unsupported(ch);
    }
  }