+++ /dev/null
-/*
- * Jexer - Java Text User Interface
- *
- * The MIT License (MIT)
- *
- * Copyright (C) 2019 Kevin Lamonte
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * @author Kevin Lamonte [kevin.lamonte@gmail.com]
- * @version 1
- */
-package jexer.tterminal;
-
-import java.awt.Graphics2D;
-import java.awt.image.BufferedImage;
-import java.io.BufferedOutputStream;
-import java.io.CharArrayWriter;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.OutputStreamWriter;
-import java.io.PrintWriter;
-import java.io.Reader;
-import java.io.UnsupportedEncodingException;
-import java.io.Writer;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-
-import jexer.TKeypress;
-import jexer.backend.GlyphMaker;
-import jexer.bits.Color;
-import jexer.bits.Cell;
-import jexer.bits.CellAttributes;
-import jexer.bits.StringUtils;
-import jexer.event.TInputEvent;
-import jexer.event.TKeypressEvent;
-import jexer.event.TMouseEvent;
-import jexer.io.ReadTimeoutException;
-import jexer.io.TimeoutInputStream;
-import static jexer.TKeypress.*;
-
-/**
- * This implements a complex ECMA-48/ISO 6429/ANSI X3.64 type console,
- * including a scrollback buffer.
- *
- * <p>
- * It currently implements VT100, VT102, VT220, and XTERM with the following
- * caveats:
- *
- * <p>
- * - The vttest scenario for VT220 8-bit controls (11.1.2.3) reports a
- * failure with XTERM. This is due to vttest failing to decode the UTF-8
- * stream.
- *
- * <p>
- * - Smooth scrolling, printing, keyboard locking, keyboard leds, and tests
- * from VT100 are not supported.
- *
- * <p>
- * - User-defined keys (DECUDK), downloadable fonts (DECDLD), and VT100/ANSI
- * compatibility mode (DECSCL) from VT220 are not supported. (Also,
- * because DECSCL is not supported, it will fail the last part of the
- * vttest "Test of VT52 mode" if DeviceType is set to VT220.)
- *
- * <p>
- * - Numeric/application keys from the number pad are not supported because
- * they are not exposed from the TKeypress API.
- *
- * <p>
- * - VT52 HOLD SCREEN mode is not supported.
- *
- * <p>
- * - In VT52 graphics mode, the 3/, 5/, and 7/ characters (fraction
- * numerators) are not rendered correctly.
- *
- * <p>
- * - All data meant for the 'printer' (CSI Pc ? i) is discarded.
- */
-public class ECMA48 implements Runnable {
-
- // ------------------------------------------------------------------------
- // Constants --------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * The emulator can emulate several kinds of terminals.
- */
- public enum DeviceType {
- /**
- * DEC VT100 but also including the three VT102 functions.
- */
- VT100,
-
- /**
- * DEC VT102.
- */
- VT102,
-
- /**
- * DEC VT220.
- */
- VT220,
-
- /**
- * A subset of xterm.
- */
- XTERM
- }
-
- /**
- * Parser character scan states.
- */
- private enum ScanState {
- GROUND,
- ESCAPE,
- ESCAPE_INTERMEDIATE,
- CSI_ENTRY,
- CSI_PARAM,
- CSI_INTERMEDIATE,
- CSI_IGNORE,
- DCS_ENTRY,
- DCS_INTERMEDIATE,
- DCS_PARAM,
- DCS_PASSTHROUGH,
- DCS_IGNORE,
- DCS_SIXEL,
- SOSPMAPC_STRING,
- OSC_STRING,
- VT52_DIRECT_CURSOR_ADDRESS
- }
-
- /**
- * The selected number pad mode (DECKPAM, DECKPNM). We record this, but
- * can't really use it in keypress() because we do not see number pad
- * events from TKeypress.
- */
- private enum KeypadMode {
- Application,
- Numeric
- }
-
- /**
- * Arrow keys can emit three different sequences (DECCKM or VT52
- * submode).
- */
- private enum ArrowKeyMode {
- VT52,
- ANSI,
- VT100
- }
-
- /**
- * Available character sets for GL, GR, G0, G1, G2, G3.
- */
- private enum CharacterSet {
- US,
- UK,
- DRAWING,
- ROM,
- ROM_SPECIAL,
- VT52_GRAPHICS,
- DEC_SUPPLEMENTAL,
- NRC_DUTCH,
- NRC_FINNISH,
- NRC_FRENCH,
- NRC_FRENCH_CA,
- NRC_GERMAN,
- NRC_ITALIAN,
- NRC_NORWEGIAN,
- NRC_SPANISH,
- NRC_SWEDISH,
- NRC_SWISS
- }
-
- /**
- * Single-shift states used by the C1 control characters SS2 (0x8E) and
- * SS3 (0x8F).
- */
- private enum Singleshift {
- NONE,
- SS2,
- SS3
- }
-
- /**
- * VT220+ lockshift states.
- */
- private enum LockshiftMode {
- NONE,
- G1_GR,
- G2_GR,
- G2_GL,
- G3_GR,
- G3_GL
- }
-
- /**
- * XTERM mouse reporting protocols.
- */
- public enum MouseProtocol {
- OFF,
- X10,
- NORMAL,
- BUTTONEVENT,
- ANYEVENT
- }
-
- /**
- * XTERM mouse reporting encodings.
- */
- private enum MouseEncoding {
- X10,
- UTF8,
- SGR
- }
-
- // ------------------------------------------------------------------------
- // Variables --------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * The enclosing listening object.
- */
- private DisplayListener displayListener;
-
- /**
- * When true, the reader thread is expected to exit.
- */
- private volatile boolean stopReaderThread = false;
-
- /**
- * The reader thread.
- */
- private Thread readerThread = null;
-
- /**
- * The type of emulator to be.
- */
- private DeviceType type = DeviceType.VT102;
-
- /**
- * The scrollback buffer characters + attributes.
- */
- private volatile ArrayList<DisplayLine> scrollback;
-
- /**
- * The raw display buffer characters + attributes.
- */
- private volatile ArrayList<DisplayLine> display;
-
- /**
- * The maximum number of lines in the scrollback buffer.
- */
- private int maxScrollback = 10000;
-
- /**
- * The terminal's input. For type == XTERM, this is an InputStreamReader
- * with UTF-8 encoding.
- */
- private Reader input;
-
- /**
- * The terminal's raw InputStream. This is used for type != XTERM.
- */
- private volatile TimeoutInputStream inputStream;
-
- /**
- * The terminal's output. For type == XTERM, this wraps an
- * OutputStreamWriter with UTF-8 encoding.
- */
- private Writer output;
-
- /**
- * The terminal's raw OutputStream. This is used for type != XTERM.
- */
- private OutputStream outputStream;
-
- /**
- * Current scanning state.
- */
- private ScanState scanState;
-
- /**
- * Which mouse protocol is active.
- */
- private MouseProtocol mouseProtocol = MouseProtocol.OFF;
-
- /**
- * Which mouse encoding is active.
- */
- private MouseEncoding mouseEncoding = MouseEncoding.X10;
-
- /**
- * A terminal may request that the mouse pointer be hidden using a
- * Privacy Message containing either "hideMousePointer" or
- * "showMousePointer". This is currently only used within Jexer by
- * TTerminalWindow so that only the bottom-most instance of nested
- * Jexer's draws the mouse within its application window.
- */
- private boolean hideMousePointer = false;
-
- /**
- * Physical display width. We start at 80x24, but the user can resize us
- * bigger/smaller.
- */
- private int width;
-
- /**
- * Physical display height. We start at 80x24, but the user can resize
- * us bigger/smaller.
- */
- private int height;
-
- /**
- * Top margin of the scrolling region.
- */
- private int scrollRegionTop;
-
- /**
- * Bottom margin of the scrolling region.
- */
- private int scrollRegionBottom;
-
- /**
- * Right margin column number. This can be selected by the remote side
- * to be 80/132 (rightMargin values 79/131), or it can be (width - 1).
- */
- private int rightMargin;
-
- /**
- * Last character printed.
- */
- private int repCh;
-
- /**
- * VT100-style line wrapping: a character is placed in column 80 (or
- * 132), but the line does NOT wrap until another character is written to
- * column 1 of the next line, after which the cursor moves to column 2.
- */
- private boolean wrapLineFlag;
-
- /**
- * VT220 single shift flag.
- */
- private Singleshift singleshift = Singleshift.NONE;
-
- /**
- * true = insert characters, false = overwrite.
- */
- private boolean insertMode = false;
-
- /**
- * VT52 mode as selected by DECANM. True means VT52, false means
- * ANSI. Default is ANSI.
- */
- private boolean vt52Mode = false;
-
- /**
- * Visible cursor (DECTCEM).
- */
- private boolean cursorVisible = true;
-
- /**
- * Screen title as set by the xterm OSC sequence. Lots of applications
- * send a screenTitle regardless of whether it is an xterm client or not.
- */
- private String screenTitle = "";
-
- /**
- * Parameter characters being collected.
- */
- private List<Integer> csiParams;
-
- /**
- * Non-csi collect buffer.
- */
- private StringBuilder collectBuffer;
-
- /**
- * When true, use the G1 character set.
- */
- private boolean shiftOut = false;
-
- /**
- * Horizontal tab stop locations.
- */
- private List<Integer> tabStops;
-
- /**
- * S8C1T. True means 8bit controls, false means 7bit controls.
- */
- private boolean s8c1t = false;
-
- /**
- * Printer mode. True means send all output to printer, which discards
- * it.
- */
- private boolean printerControllerMode = false;
-
- /**
- * LMN line mode. If true, linefeed() puts the cursor on the first
- * column of the next line. If false, linefeed() puts the cursor one
- * line down on the current line. The default is false.
- */
- private boolean newLineMode = false;
-
- /**
- * Whether arrow keys send ANSI, VT100, or VT52 sequences.
- */
- private ArrowKeyMode arrowKeyMode;
-
- /**
- * Whether number pad keys send VT100 or VT52, application or numeric
- * sequences.
- */
- @SuppressWarnings("unused")
- private KeypadMode keypadMode;
-
- /**
- * When true, the terminal is in 132-column mode (DECCOLM).
- */
- private boolean columns132 = false;
-
- /**
- * true = reverse video. Set by DECSCNM.
- */
- private boolean reverseVideo = false;
-
- /**
- * false = echo characters locally.
- */
- private boolean fullDuplex = true;
-
- /**
- * The current terminal state.
- */
- private SaveableState currentState;
-
- /**
- * The last saved terminal state.
- */
- private SaveableState savedState;
-
- /**
- * The 88- or 256-color support RGB colors.
- */
- private List<Integer> colors88;
-
- /**
- * Sixel collection buffer.
- */
- private StringBuilder sixelParseBuffer;
-
- /**
- * Sixel shared palette.
- */
- private HashMap<Integer, java.awt.Color> sixelPalette;
-
- /**
- * The width of a character cell in pixels.
- */
- private int textWidth = 16;
-
- /**
- * The height of a character cell in pixels.
- */
- private int textHeight = 20;
-
- /**
- * The last used height of a character cell in pixels, only used for
- * full-width chars.
- */
- private int lastTextHeight = -1;
-
- /**
- * The glyph drawer for full-width chars.
- */
- private GlyphMaker glyphMaker = null;
-
- /**
- * Input queue for keystrokes and mouse events to send to the remote
- * side.
- */
- private ArrayList<TInputEvent> userQueue = new ArrayList<TInputEvent>();
-
- /**
- * DECSC/DECRC save/restore a subset of the total state. This class
- * encapsulates those specific flags/modes.
- */
- private class SaveableState {
-
- /**
- * When true, cursor positions are relative to the scrolling region.
- */
- public boolean originMode = false;
-
- /**
- * The current editing X position.
- */
- public int cursorX = 0;
-
- /**
- * The current editing Y position.
- */
- public int cursorY = 0;
-
- /**
- * Which character set is currently selected in G0.
- */
- public CharacterSet g0Charset = CharacterSet.US;
-
- /**
- * Which character set is currently selected in G1.
- */
- public CharacterSet g1Charset = CharacterSet.DRAWING;
-
- /**
- * Which character set is currently selected in G2.
- */
- public CharacterSet g2Charset = CharacterSet.US;
-
- /**
- * Which character set is currently selected in G3.
- */
- public CharacterSet g3Charset = CharacterSet.US;
-
- /**
- * Which character set is currently selected in GR.
- */
- public CharacterSet grCharset = CharacterSet.DRAWING;
-
- /**
- * The current drawing attributes.
- */
- public CellAttributes attr;
-
- /**
- * GL lockshift mode.
- */
- public LockshiftMode glLockshift = LockshiftMode.NONE;
-
- /**
- * GR lockshift mode.
- */
- public LockshiftMode grLockshift = LockshiftMode.NONE;
-
- /**
- * Line wrap.
- */
- public boolean lineWrap = true;
-
- /**
- * Reset to defaults.
- */
- public void reset() {
- originMode = false;
- cursorX = 0;
- cursorY = 0;
- g0Charset = CharacterSet.US;
- g1Charset = CharacterSet.DRAWING;
- g2Charset = CharacterSet.US;
- g3Charset = CharacterSet.US;
- grCharset = CharacterSet.DRAWING;
- attr = new CellAttributes();
- glLockshift = LockshiftMode.NONE;
- grLockshift = LockshiftMode.NONE;
- lineWrap = true;
- }
-
- /**
- * Copy attributes from another instance.
- *
- * @param that the other instance to match
- */
- public void setTo(final SaveableState that) {
- this.originMode = that.originMode;
- this.cursorX = that.cursorX;
- this.cursorY = that.cursorY;
- this.g0Charset = that.g0Charset;
- this.g1Charset = that.g1Charset;
- this.g2Charset = that.g2Charset;
- this.g3Charset = that.g3Charset;
- this.grCharset = that.grCharset;
- this.attr = new CellAttributes();
- this.attr.setTo(that.attr);
- this.glLockshift = that.glLockshift;
- this.grLockshift = that.grLockshift;
- this.lineWrap = that.lineWrap;
- }
-
- /**
- * Public constructor.
- */
- public SaveableState() {
- reset();
- }
- }
-
- // ------------------------------------------------------------------------
- // Constructors -----------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Public constructor.
- *
- * @param type one of the DeviceType constants to select VT100, VT102,
- * VT220, or XTERM
- * @param inputStream an InputStream connected to the remote side. For
- * type == XTERM, inputStream is converted to a Reader with UTF-8
- * encoding.
- * @param outputStream an OutputStream connected to the remote user. For
- * type == XTERM, outputStream is converted to a Writer with UTF-8
- * encoding.
- * @param displayListener a callback to the outer display, or null for
- * default VT100 behavior
- * @throws UnsupportedEncodingException if an exception is thrown when
- * creating the InputStreamReader
- */
- public ECMA48(final DeviceType type, final InputStream inputStream,
- final OutputStream outputStream, final DisplayListener displayListener)
- throws UnsupportedEncodingException {
-
- assert (inputStream != null);
- assert (outputStream != null);
-
- csiParams = new ArrayList<Integer>();
- tabStops = new ArrayList<Integer>();
- scrollback = new ArrayList<DisplayLine>();
- display = new ArrayList<DisplayLine>();
-
- this.type = type;
- if (inputStream instanceof TimeoutInputStream) {
- this.inputStream = (TimeoutInputStream)inputStream;
- } else {
- this.inputStream = new TimeoutInputStream(inputStream, 2000);
- }
- if (type == DeviceType.XTERM) {
- this.input = new InputStreamReader(this.inputStream, "UTF-8");
- this.output = new OutputStreamWriter(new
- BufferedOutputStream(outputStream), "UTF-8");
- this.outputStream = null;
- } else {
- this.output = null;
- this.outputStream = new BufferedOutputStream(outputStream);
- }
- this.displayListener = displayListener;
-
- reset();
- for (int i = 0; i < height; i++) {
- display.add(new DisplayLine(currentState.attr));
- }
-
- // Spin up the input reader
- readerThread = new Thread(this);
- readerThread.start();
- }
-
- // ------------------------------------------------------------------------
- // Runnable ---------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Read function runs on a separate thread.
- */
- public final void run() {
- boolean utf8 = false;
- boolean done = false;
-
- if (type == DeviceType.XTERM) {
- utf8 = true;
- }
-
- // available() will often return > 1, so we need to read in chunks to
- // stay caught up.
- char [] readBufferUTF8 = null;
- byte [] readBuffer = null;
- if (utf8) {
- readBufferUTF8 = new char[2048];
- } else {
- readBuffer = new byte[2048];
- }
-
- while (!done && !stopReaderThread) {
- synchronized (userQueue) {
- while (userQueue.size() > 0) {
- handleUserEvent(userQueue.remove(0));
- }
- }
-
- try {
- int n = inputStream.available();
-
- // System.err.printf("available() %d\n", n); System.err.flush();
- if (utf8) {
- if (readBufferUTF8.length < n) {
- // The buffer wasn't big enough, make it huger
- int newSizeHalf = Math.max(readBufferUTF8.length,
- n);
-
- readBufferUTF8 = new char[newSizeHalf * 2];
- }
- } else {
- if (readBuffer.length < n) {
- // The buffer wasn't big enough, make it huger
- int newSizeHalf = Math.max(readBuffer.length, n);
- readBuffer = new byte[newSizeHalf * 2];
- }
- }
- if (n == 0) {
- try {
- Thread.sleep(10);
- } catch (InterruptedException e) {
- // SQUASH
- }
- continue;
- }
-
- int rc = -1;
- try {
- if (utf8) {
- rc = input.read(readBufferUTF8, 0,
- readBufferUTF8.length);
- } else {
- rc = inputStream.read(readBuffer, 0,
- readBuffer.length);
- }
- } catch (ReadTimeoutException e) {
- rc = 0;
- }
-
- // System.err.printf("read() %d\n", rc); System.err.flush();
- if (rc == -1) {
- // This is EOF
- done = true;
- } else {
- // Don't step on UI events
- synchronized (this) {
- if (utf8) {
- for (int i = 0; i < rc;) {
- int ch = Character.codePointAt(readBufferUTF8,
- i);
- i += Character.charCount(ch);
- consume(ch);
- }
- } else {
- for (int i = 0; i < rc; i++) {
- consume(readBuffer[i]);
- }
- }
- }
- // Permit my enclosing UI to know that I updated.
- if (displayListener != null) {
- displayListener.displayChanged();
- }
- }
- // System.err.println("end while loop"); System.err.flush();
- } catch (IOException e) {
- done = true;
-
- // This is an unusual case. We want to see the stack trace,
- // but it is related to the spawned process rather than the
- // actual UI. We will generate the stack trace, and consume
- // it as though it was emitted by the shell.
- CharArrayWriter writer= new CharArrayWriter();
- // Send a ST and RIS to clear the emulator state.
- try {
- writer.write("\033\\\033c");
- writer.write("\n-----------------------------------\n");
- e.printStackTrace(new PrintWriter(writer));
- writer.write("\n-----------------------------------\n");
- } catch (IOException e2) {
- // SQUASH
- }
- char [] stackTrace = writer.toCharArray();
- for (int i = 0; i < stackTrace.length; i++) {
- if (stackTrace[i] == '\n') {
- consume('\r');
- }
- consume(stackTrace[i]);
- }
- }
-
- } // while ((done == false) && (stopReaderThread == false))
-
- // Let the rest of the world know that I am done.
- stopReaderThread = true;
-
- try {
- inputStream.cancelRead();
- inputStream.close();
- inputStream = null;
- } catch (IOException e) {
- // SQUASH
- }
- try {
- input.close();
- input = null;
- } catch (IOException e) {
- // SQUASH
- }
-
- // Permit my enclosing UI to know that I updated.
- if (displayListener != null) {
- displayListener.displayChanged();
- }
-
- // System.err.println("*** run() exiting..."); System.err.flush();
- }
-
- // ------------------------------------------------------------------------
- // ECMA48 -----------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Process keyboard and mouse events from the user.
- *
- * @param event the input event to consume
- */
- private void handleUserEvent(final TInputEvent event) {
- if (event instanceof TKeypressEvent) {
- keypress(((TKeypressEvent) event).getKey());
- }
- if (event instanceof TMouseEvent) {
- mouse((TMouseEvent) event);
- }
- }
-
- /**
- * Add a keyboard and mouse event from the user to the queue.
- *
- * @param event the input event to consume
- */
- public void addUserEvent(final TInputEvent event) {
- synchronized (userQueue) {
- userQueue.add(event);
- }
- }
-
- /**
- * Return the proper primary Device Attributes string.
- *
- * @return string to send to remote side that is appropriate for the
- * this.type
- */
- private String deviceTypeResponse() {
- switch (type) {
- case VT100:
- // "I am a VT100 with advanced video option" (often VT102)
- return "\033[?1;2c";
-
- case VT102:
- // "I am a VT102"
- return "\033[?6c";
-
- case VT220:
- case XTERM:
- // "I am a VT220" - 7 bit version
- if (!s8c1t) {
- return "\033[?62;1;6;9;4;22c";
- // return "\033[?62;1;6;9;4;22;444c";
- }
- // "I am a VT220" - 8 bit version
- return "\u009b?62;1;6;9;4;22c";
- // return "\u009b?62;1;6;9;4;22;444c";
- default:
- throw new IllegalArgumentException("Invalid device type: " + type);
- }
- }
-
- /**
- * Return the proper TERM environment variable for this device type.
- *
- * @param deviceType DeviceType.VT100, DeviceType, XTERM, etc.
- * @return "vt100", "xterm", etc.
- */
- public static String deviceTypeTerm(final DeviceType deviceType) {
- switch (deviceType) {
- case VT100:
- return "vt100";
-
- case VT102:
- return "vt102";
-
- case VT220:
- return "vt220";
-
- case XTERM:
- return "xterm";
-
- default:
- throw new IllegalArgumentException("Invalid device type: "
- + deviceType);
- }
- }
-
- /**
- * Return the proper LANG for this device type. Only XTERM devices know
- * about UTF-8, the others are defined by their standard to be either
- * 7-bit or 8-bit characters only.
- *
- * @param deviceType DeviceType.VT100, DeviceType, XTERM, etc.
- * @param baseLang a base language without UTF-8 flag such as "C" or
- * "en_US"
- * @return "en_US", "en_US.UTF-8", etc.
- */
- public static String deviceTypeLang(final DeviceType deviceType,
- final String baseLang) {
-
- switch (deviceType) {
-
- case VT100:
- case VT102:
- case VT220:
- return baseLang;
-
- case XTERM:
- return baseLang + ".UTF-8";
-
- default:
- throw new IllegalArgumentException("Invalid device type: "
- + deviceType);
- }
- }
-
- /**
- * Write a string directly to the remote side.
- *
- * @param str string to send
- */
- public void writeRemote(final String str) {
- if (stopReaderThread) {
- // Reader hit EOF, bail out now.
- close();
- return;
- }
-
- // System.err.printf("writeRemote() '%s'\n", str);
-
- switch (type) {
- case VT100:
- case VT102:
- case VT220:
- if (outputStream == null) {
- return;
- }
- try {
- outputStream.flush();
- for (int i = 0; i < str.length(); i++) {
- outputStream.write(str.charAt(i));
- }
- outputStream.flush();
- } catch (IOException e) {
- // Assume EOF
- close();
- }
- break;
- case XTERM:
- if (output == null) {
- return;
- }
- try {
- output.flush();
- output.write(str);
- output.flush();
- } catch (IOException e) {
- // Assume EOF
- close();
- }
- break;
- default:
- throw new IllegalArgumentException("Invalid device type: " + type);
- }
- }
-
- /**
- * Close the input and output streams and stop the reader thread. Note
- * that it is safe to call this multiple times.
- */
- public final void close() {
-
- // Tell the reader thread to stop looking at input. It will close
- // the input streams.
- if (stopReaderThread == false) {
- stopReaderThread = true;
- try {
- readerThread.join(1000);
- } catch (InterruptedException e) {
- // SQUASH
- }
- }
-
- // Now close the output stream.
- switch (type) {
- case VT100:
- case VT102:
- case VT220:
- if (outputStream != null) {
- try {
- outputStream.close();
- } catch (IOException e) {
- // SQUASH
- }
- outputStream = null;
- }
- break;
- case XTERM:
- if (outputStream != null) {
- try {
- outputStream.close();
- } catch (IOException e) {
- // SQUASH
- }
- outputStream = null;
- }
- if (output != null) {
- try {
- output.close();
- } catch (IOException e) {
- // SQUASH
- }
- output = null;
- }
- break;
- default:
- throw new IllegalArgumentException("Invalid device type: " +
- type);
- }
- }
-
- /**
- * See if the reader thread is still running.
- *
- * @return if true, we are still connected to / reading from the remote
- * side
- */
- public final boolean isReading() {
- return (!stopReaderThread);
- }
-
- /**
- * Obtain a new blank display line for an external user
- * (e.g. TTerminalWindow).
- *
- * @return new blank line
- */
- public final DisplayLine getBlankDisplayLine() {
- return new DisplayLine(currentState.attr);
- }
-
- /**
- * Get the scrollback buffer.
- *
- * @return the scrollback buffer
- */
- public final List<DisplayLine> getScrollbackBuffer() {
- return scrollback;
- }
-
- /**
- * Get the display buffer.
- *
- * @return the display buffer
- */
- public final List<DisplayLine> getDisplayBuffer() {
- return display;
- }
-
- /**
- * Get the visible display + scrollback buffer, offset by a specified
- * number of rows from the bottom.
- *
- * @param visibleHeight the total height of the display to show
- * @param scrollBottom the number of rows from the bottom to scroll back
- * @return a copy of the display + scrollback buffers
- */
- public final List<DisplayLine> getVisibleDisplay(final int visibleHeight,
- final int scrollBottom) {
-
- assert (visibleHeight >= 0);
- assert (scrollBottom >= 0);
-
- int visibleBottom = scrollback.size() + display.size() - scrollBottom;
-
- List<DisplayLine> preceedingBlankLines = new ArrayList<DisplayLine>();
- int visibleTop = visibleBottom - visibleHeight;
- if (visibleTop < 0) {
- for (int i = visibleTop; i < 0; i++) {
- preceedingBlankLines.add(getBlankDisplayLine());
- }
- visibleTop = 0;
- }
- assert (visibleTop >= 0);
-
- List<DisplayLine> displayLines = new ArrayList<DisplayLine>();
- displayLines.addAll(scrollback);
- displayLines.addAll(display);
-
- List<DisplayLine> visibleLines = new ArrayList<DisplayLine>();
- visibleLines.addAll(preceedingBlankLines);
- visibleLines.addAll(displayLines.subList(visibleTop, visibleBottom));
-
- // Fill in the blank lines on bottom
- int bottomBlankLines = visibleHeight - visibleLines.size();
- assert (bottomBlankLines >= 0);
- for (int i = 0; i < bottomBlankLines; i++) {
- visibleLines.add(getBlankDisplayLine());
- }
-
- return copyBuffer(visibleLines);
- }
-
- /**
- * Copy a display buffer.
- *
- * @param buffer the buffer to copy
- * @return a deep copy of the buffer's data
- */
- private List<DisplayLine> copyBuffer(final List<DisplayLine> buffer) {
- ArrayList<DisplayLine> result = new ArrayList<DisplayLine>(buffer.size());
- for (DisplayLine line: buffer) {
- result.add(new DisplayLine(line));
- }
- return result;
- }
-
- /**
- * Get the display width.
- *
- * @return the width (usually 80 or 132)
- */
- public final int getWidth() {
- return width;
- }
-
- /**
- * Set the display width.
- *
- * @param width the new width
- */
- public final synchronized void setWidth(final int width) {
- this.width = width;
- rightMargin = width - 1;
- if (currentState.cursorX >= width) {
- currentState.cursorX = width - 1;
- }
- if (savedState.cursorX >= width) {
- savedState.cursorX = width - 1;
- }
- }
-
- /**
- * Get the display height.
- *
- * @return the height (usually 24)
- */
- public final int getHeight() {
- return height;
- }
-
- /**
- * Set the display height.
- *
- * @param height the new height
- */
- public final synchronized void setHeight(final int height) {
- int delta = height - this.height;
- this.height = height;
- scrollRegionBottom += delta;
- if (scrollRegionBottom < 0) {
- scrollRegionBottom = height;
- }
- if (scrollRegionTop >= scrollRegionBottom) {
- scrollRegionTop = 0;
- }
- if (currentState.cursorY >= height) {
- currentState.cursorY = height - 1;
- }
- if (savedState.cursorY >= height) {
- savedState.cursorY = height - 1;
- }
- while (display.size() < height) {
- DisplayLine line = new DisplayLine(currentState.attr);
- line.setReverseColor(reverseVideo);
- display.add(line);
- }
- while (display.size() > height) {
- scrollback.add(display.remove(0));
- }
- }
-
- /**
- * Get visible cursor flag.
- *
- * @return if true, the cursor is visible
- */
- public final boolean isCursorVisible() {
- return cursorVisible;
- }
-
- /**
- * Get the screen title as set by the xterm OSC sequence. Lots of
- * applications send a screenTitle regardless of whether it is an xterm
- * client or not.
- *
- * @return screen title
- */
- public final String getScreenTitle() {
- return screenTitle;
- }
-
- /**
- * Get 132 columns value.
- *
- * @return if true, the terminal is in 132 column mode
- */
- public final boolean isColumns132() {
- return columns132;
- }
-
- /**
- * Clear the CSI parameters and flags.
- */
- private void toGround() {
- csiParams.clear();
- collectBuffer = new StringBuilder(8);
- scanState = ScanState.GROUND;
- }
-
- /**
- * Reset the tab stops list.
- */
- private void resetTabStops() {
- tabStops.clear();
- for (int i = 0; (i * 8) <= rightMargin; i++) {
- tabStops.add(Integer.valueOf(i * 8));
- }
- }
-
- /**
- * Reset the 88- or 256-colors.
- */
- private void resetColors() {
- colors88 = new ArrayList<Integer>(256);
- for (int i = 0; i < 256; i++) {
- colors88.add(0);
- }
-
- // Set default system colors.
- colors88.set(0, 0x00000000);
- colors88.set(1, 0x00a80000);
- colors88.set(2, 0x0000a800);
- colors88.set(3, 0x00a85400);
- colors88.set(4, 0x000000a8);
- colors88.set(5, 0x00a800a8);
- colors88.set(6, 0x0000a8a8);
- colors88.set(7, 0x00a8a8a8);
-
- colors88.set(8, 0x00545454);
- colors88.set(9, 0x00fc5454);
- colors88.set(10, 0x0054fc54);
- colors88.set(11, 0x00fcfc54);
- colors88.set(12, 0x005454fc);
- colors88.set(13, 0x00fc54fc);
- colors88.set(14, 0x0054fcfc);
- colors88.set(15, 0x00fcfcfc);
- }
-
- /**
- * Get the RGB value of one of the indexed colors.
- *
- * @param index the color index
- * @return the RGB value
- */
- private int get88Color(final int index) {
- // System.err.print("get88Color: " + index);
- if ((index < 0) || (index > colors88.size())) {
- // System.err.println(" -- UNKNOWN");
- return 0;
- }
- // System.err.printf(" %08x\n", colors88.get(index));
- return colors88.get(index);
- }
-
- /**
- * Set one of the indexed colors to a color specification.
- *
- * @param index the color index
- * @param spec the specification, typically something like "rgb:aa/bb/cc"
- */
- private void set88Color(final int index, final String spec) {
- // System.err.println("set88Color: " + index + " '" + spec + "'");
-
- if ((index < 0) || (index > colors88.size())) {
- return;
- }
- if (spec.startsWith("rgb:")) {
- String [] rgbTokens = spec.substring(4).split("/");
- if (rgbTokens.length == 3) {
- try {
- int rgb = (Integer.parseInt(rgbTokens[0], 16) << 16);
- rgb |= Integer.parseInt(rgbTokens[1], 16) << 8;
- rgb |= Integer.parseInt(rgbTokens[2], 16);
- // System.err.printf(" set to %08x\n", rgb);
- colors88.set(index, rgb);
- } catch (NumberFormatException e) {
- // SQUASH
- }
- }
- return;
- }
-
- if (spec.toLowerCase().equals("black")) {
- colors88.set(index, 0x00000000);
- } else if (spec.toLowerCase().equals("red")) {
- colors88.set(index, 0x00a80000);
- } else if (spec.toLowerCase().equals("green")) {
- colors88.set(index, 0x0000a800);
- } else if (spec.toLowerCase().equals("yellow")) {
- colors88.set(index, 0x00a85400);
- } else if (spec.toLowerCase().equals("blue")) {
- colors88.set(index, 0x000000a8);
- } else if (spec.toLowerCase().equals("magenta")) {
- colors88.set(index, 0x00a800a8);
- } else if (spec.toLowerCase().equals("cyan")) {
- colors88.set(index, 0x0000a8a8);
- } else if (spec.toLowerCase().equals("white")) {
- colors88.set(index, 0x00a8a8a8);
- }
-
- }
-
- /**
- * Reset the emulation state.
- */
- private void reset() {
-
- currentState = new SaveableState();
- savedState = new SaveableState();
- scanState = ScanState.GROUND;
- width = 80;
- height = 24;
- scrollRegionTop = 0;
- scrollRegionBottom = height - 1;
- rightMargin = width - 1;
- newLineMode = false;
- arrowKeyMode = ArrowKeyMode.ANSI;
- keypadMode = KeypadMode.Numeric;
- wrapLineFlag = false;
- if (displayListener != null) {
- width = displayListener.getDisplayWidth();
- height = displayListener.getDisplayHeight();
- rightMargin = width - 1;
- }
-
- // Flags
- shiftOut = false;
- vt52Mode = false;
- insertMode = false;
- columns132 = false;
- newLineMode = false;
- reverseVideo = false;
- fullDuplex = true;
- cursorVisible = true;
-
- // VT220
- singleshift = Singleshift.NONE;
- s8c1t = false;
- printerControllerMode = false;
-
- // XTERM
- mouseProtocol = MouseProtocol.OFF;
- mouseEncoding = MouseEncoding.X10;
-
- // Tab stops
- resetTabStops();
-
- // Reset extra colors
- resetColors();
-
- // Clear CSI stuff
- toGround();
- }
-
- /**
- * Append a new line to the bottom of the display, adding lines off the
- * top to the scrollback buffer.
- */
- private void newDisplayLine() {
- // Scroll the top line off into the scrollback buffer
- scrollback.add(display.get(0));
- if (scrollback.size() > maxScrollback) {
- scrollback.remove(0);
- scrollback.trimToSize();
- }
- display.remove(0);
- display.trimToSize();
- DisplayLine line = new DisplayLine(currentState.attr);
- line.setReverseColor(reverseVideo);
- display.add(line);
- }
-
- /**
- * Wraps the current line.
- */
- private void wrapCurrentLine() {
- if (currentState.cursorY == height - 1) {
- newDisplayLine();
- }
- if (currentState.cursorY < height - 1) {
- currentState.cursorY++;
- }
- currentState.cursorX = 0;
- }
-
- /**
- * Handle a carriage return.
- */
- private void carriageReturn() {
- currentState.cursorX = 0;
- wrapLineFlag = false;
- }
-
- /**
- * Reverse the color of the visible display.
- */
- private void invertDisplayColors() {
- for (DisplayLine line: display) {
- line.setReverseColor(!line.isReverseColor());
- }
- }
-
- /**
- * Handle a linefeed.
- */
- private void linefeed() {
-
- if (currentState.cursorY < scrollRegionBottom) {
- // Increment screen y
- currentState.cursorY++;
- } else {
-
- // Screen y does not increment
-
- /*
- * Two cases: either we're inside a scrolling region or not. If
- * the scrolling region bottom is the bottom of the screen, then
- * push the top line into the buffer. Else scroll the scrolling
- * region up.
- */
- if ((scrollRegionBottom == height - 1) && (scrollRegionTop == 0)) {
-
- // We're at the bottom of the scroll region, AND the scroll
- // region is the entire screen.
-
- // New line
- newDisplayLine();
-
- } else {
- // We're at the bottom of the scroll region, AND the scroll
- // region is NOT the entire screen.
- scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, 1);
- }
- }
-
- if (newLineMode) {
- currentState.cursorX = 0;
- }
- wrapLineFlag = false;
- }
-
- /**
- * Prints one character to the display buffer.
- *
- * @param ch character to display
- */
- private void printCharacter(final int ch) {
- int rightMargin = this.rightMargin;
-
- if (StringUtils.width(ch) == 2) {
- // This is a full-width character. Save two spaces, and then
- // draw the character as two image halves.
- int x0 = currentState.cursorX;
- int y0 = currentState.cursorY;
- printCharacter(' ');
- printCharacter(' ');
- if ((currentState.cursorX == x0 + 2)
- && (currentState.cursorY == y0)
- ) {
- // We can draw both halves of the character.
- drawHalves(x0, y0, x0 + 1, y0, ch);
- } else if ((currentState.cursorX == x0 + 1)
- && (currentState.cursorY == y0)
- ) {
- // VT100 line wrap behavior: we should be at the right
- // margin. We can draw both halves of the character.
- drawHalves(x0, y0, x0 + 1, y0, ch);
- } else {
- // The character splits across the line. Draw the entire
- // character on the new line, giving one more space for it.
- x0 = currentState.cursorX - 1;
- y0 = currentState.cursorY;
- printCharacter(' ');
- drawHalves(x0, y0, x0 + 1, y0, ch);
- }
- return;
- }
-
- // Check if we have double-width, and if so chop at 40/66 instead of
- // 80/132
- if (display.get(currentState.cursorY).isDoubleWidth()) {
- rightMargin = ((rightMargin + 1) / 2) - 1;
- }
-
- // Check the unusually-complicated line wrapping conditions...
- if (currentState.cursorX == rightMargin) {
-
- if (currentState.lineWrap == true) {
- /*
- * This case happens when: the cursor was already on the
- * right margin (either through printing or by an explicit
- * placement command), and a character was printed.
- *
- * The line wraps only when a new character arrives AND the
- * cursor is already on the right margin AND has placed a
- * character in its cell. Easier to see than to explain.
- */
- if (wrapLineFlag == false) {
- /*
- * This block marks the case that we are in the margin
- * and the first character has been received and printed.
- */
- wrapLineFlag = true;
- } else {
- /*
- * This block marks the case that we are in the margin
- * and the second character has been received and
- * printed.
- */
- wrapLineFlag = false;
- wrapCurrentLine();
- }
- }
- } else if (currentState.cursorX <= rightMargin) {
- /*
- * This is the normal case: a character came in and was printed
- * to the left of the right margin column.
- */
-
- // Turn off VT100 special-case flag
- wrapLineFlag = false;
- }
-
- // "Print" the character
- Cell newCell = new Cell(ch);
- CellAttributes newCellAttributes = (CellAttributes) newCell;
- newCellAttributes.setTo(currentState.attr);
- DisplayLine line = display.get(currentState.cursorY);
-
- if (StringUtils.width(ch) == 1) {
- // Insert mode special case
- if (insertMode == true) {
- line.insert(currentState.cursorX, newCell);
- } else {
- // Replace an existing character
- line.replace(currentState.cursorX, newCell);
- }
-
- // Increment horizontal
- if (wrapLineFlag == false) {
- currentState.cursorX++;
- if (currentState.cursorX > rightMargin) {
- currentState.cursorX--;
- }
- }
- }
- }
-
- /**
- * Translate the mouse event to a VT100, VT220, or XTERM sequence and
- * send to the remote side.
- *
- * @param mouse mouse event received from the local user
- */
- private void mouse(final TMouseEvent mouse) {
-
- /*
- System.err.printf("mouse(): protocol %s encoding %s mouse %s\n",
- mouseProtocol, mouseEncoding, mouse);
- */
-
- if (mouseEncoding == MouseEncoding.X10) {
- // We will support X10 but only for (160,94) and smaller.
- if ((mouse.getX() >= 160) || (mouse.getY() >= 94)) {
- return;
- }
- }
-
- switch (mouseProtocol) {
-
- case OFF:
- // Do nothing
- return;
-
- case X10:
- // Only report button presses
- if (mouse.getType() != TMouseEvent.Type.MOUSE_DOWN) {
- return;
- }
- break;
-
- case NORMAL:
- // Only report button presses and releases
- if ((mouse.getType() != TMouseEvent.Type.MOUSE_DOWN)
- && (mouse.getType() != TMouseEvent.Type.MOUSE_UP)
- ) {
- return;
- }
- break;
-
- case BUTTONEVENT:
- /*
- * Only report button presses, button releases, and motions that
- * have a button down (i.e. drag-and-drop).
- */
- if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) {
- if (!mouse.isMouse1()
- && !mouse.isMouse2()
- && !mouse.isMouse3()
- && !mouse.isMouseWheelUp()
- && !mouse.isMouseWheelDown()
- ) {
- return;
- }
- }
- break;
-
- case ANYEVENT:
- // Report everything
- break;
- }
-
- // Now encode the event
- StringBuilder sb = new StringBuilder(6);
- if (mouseEncoding == MouseEncoding.SGR) {
- sb.append((char) 0x1B);
- sb.append("[<");
-
- if (mouse.isMouse1()) {
- if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) {
- sb.append("32;");
- } else {
- sb.append("0;");
- }
- } else if (mouse.isMouse2()) {
- if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) {
- sb.append("33;");
- } else {
- sb.append("1;");
- }
- } else if (mouse.isMouse3()) {
- if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) {
- sb.append("34;");
- } else {
- sb.append("2;");
- }
- } else if (mouse.isMouseWheelUp()) {
- sb.append("64;");
- } else if (mouse.isMouseWheelDown()) {
- sb.append("65;");
- } else {
- // This is motion with no buttons down.
- sb.append("35;");
- }
-
- sb.append(String.format("%d;%d", mouse.getX() + 1,
- mouse.getY() + 1));
-
- if (mouse.getType() == TMouseEvent.Type.MOUSE_UP) {
- sb.append("m");
- } else {
- sb.append("M");
- }
-
- } else {
- // X10 and UTF8 encodings
- sb.append((char) 0x1B);
- sb.append('[');
- sb.append('M');
- if (mouse.getType() == TMouseEvent.Type.MOUSE_UP) {
- sb.append((char) (0x03 + 32));
- } else if (mouse.isMouse1()) {
- if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) {
- sb.append((char) (0x00 + 32 + 32));
- } else {
- sb.append((char) (0x00 + 32));
- }
- } else if (mouse.isMouse2()) {
- if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) {
- sb.append((char) (0x01 + 32 + 32));
- } else {
- sb.append((char) (0x01 + 32));
- }
- } else if (mouse.isMouse3()) {
- if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) {
- sb.append((char) (0x02 + 32 + 32));
- } else {
- sb.append((char) (0x02 + 32));
- }
- } else if (mouse.isMouseWheelUp()) {
- sb.append((char) (0x04 + 64));
- } else if (mouse.isMouseWheelDown()) {
- sb.append((char) (0x05 + 64));
- } else {
- // This is motion with no buttons down.
- sb.append((char) (0x03 + 32));
- }
-
- sb.append((char) (mouse.getX() + 33));
- sb.append((char) (mouse.getY() + 33));
- }
-
- // System.err.printf("Would write: \'%s\'\n", sb.toString());
- writeRemote(sb.toString());
- }
-
- /**
- * Translate the keyboard press to a VT100, VT220, or XTERM sequence and
- * send to the remote side.
- *
- * @param keypress keypress received from the local user
- */
- private void keypress(final TKeypress keypress) {
- writeRemote(keypressToString(keypress));
- }
-
- /**
- * Build one of the complex xterm keystroke sequences, storing the result in
- * xterm_keystroke_buffer.
- *
- * @param ss3 the prefix to use based on VT100 state.
- * @param first the first character, usually a number.
- * @param first the last character, one of the following: ~ A B C D F H
- * @param ctrl whether or not ctrl is down
- * @param alt whether or not alt is down
- * @param shift whether or not shift is down
- * @return the buffer with the full key sequence
- */
- private String xtermBuildKeySequence(final String ss3, final char first,
- final char last, boolean ctrl, boolean alt, boolean shift) {
-
- StringBuilder sb = new StringBuilder(ss3);
- if ((last == '~') || (ctrl == true) || (alt == true)
- || (shift == true)
- ) {
- sb.append(first);
- if ( (ctrl == false) && (alt == false) && (shift == true)) {
- sb.append(";2");
- } else if ((ctrl == false) && (alt == true) && (shift == false)) {
- sb.append(";3");
- } else if ((ctrl == false) && (alt == true) && (shift == true)) {
- sb.append(";4");
- } else if ((ctrl == true) && (alt == false) && (shift == false)) {
- sb.append(";5");
- } else if ((ctrl == true) && (alt == false) && (shift == true)) {
- sb.append(";6");
- } else if ((ctrl == true) && (alt == true) && (shift == false)) {
- sb.append(";7");
- } else if ((ctrl == true) && (alt == true) && (shift == true)) {
- sb.append(";8");
- }
- }
- sb.append(last);
- return sb.toString();
- }
-
- /**
- * Translate the keyboard press to a VT100, VT220, or XTERM sequence.
- *
- * @param keypress keypress received from the local user
- * @return string to transmit to the remote side
- */
- @SuppressWarnings("fallthrough")
- private String keypressToString(final TKeypress keypress) {
-
- if ((fullDuplex == false) && (!keypress.isFnKey())) {
- /*
- * If this is a control character, process it like it came from
- * the remote side.
- */
- if (keypress.getChar() < 0x20) {
- handleControlChar((char) keypress.getChar());
- } else {
- // Local echo for everything else
- printCharacter(keypress.getChar());
- }
- if (displayListener != null) {
- displayListener.displayChanged();
- }
- }
-
- if ((newLineMode == true) && (keypress.equals(kbEnter))) {
- // NLM: send CRLF
- return "\015\012";
- }
-
- // Handle control characters
- if ((keypress.isCtrl()) && (!keypress.isFnKey())) {
- StringBuilder sb = new StringBuilder();
- int ch = keypress.getChar();
- ch -= 0x40;
- sb.append(Character.toChars(ch));
- return sb.toString();
- }
-
- // Handle alt characters
- if ((keypress.isAlt()) && (!keypress.isFnKey())) {
- StringBuilder sb = new StringBuilder("\033");
- int ch = keypress.getChar();
- sb.append(Character.toChars(ch));
- return sb.toString();
- }
-
- if (keypress.equals(kbBackspaceDel)) {
- switch (type) {
- case VT100:
- return "\010";
- case VT102:
- return "\010";
- case VT220:
- return "\177";
- case XTERM:
- return "\177";
- }
- }
-
- if (keypress.equalsWithoutModifiers(kbLeft)) {
- switch (type) {
- case XTERM:
- switch (arrowKeyMode) {
- case ANSI:
- return xtermBuildKeySequence("\033[", '1', 'D',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT52:
- return xtermBuildKeySequence("\033", '1', 'D',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT100:
- return xtermBuildKeySequence("\033O", '1', 'D',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- }
- default:
- switch (arrowKeyMode) {
- case ANSI:
- return "\033[D";
- case VT52:
- return "\033D";
- case VT100:
- return "\033OD";
- }
- }
- }
-
- if (keypress.equalsWithoutModifiers(kbRight)) {
- switch (type) {
- case XTERM:
- switch (arrowKeyMode) {
- case ANSI:
- return xtermBuildKeySequence("\033[", '1', 'C',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT52:
- return xtermBuildKeySequence("\033", '1', 'C',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT100:
- return xtermBuildKeySequence("\033O", '1', 'C',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- }
- default:
- switch (arrowKeyMode) {
- case ANSI:
- return "\033[C";
- case VT52:
- return "\033C";
- case VT100:
- return "\033OC";
- }
- }
- }
-
- if (keypress.equalsWithoutModifiers(kbUp)) {
- switch (type) {
- case XTERM:
- switch (arrowKeyMode) {
- case ANSI:
- return xtermBuildKeySequence("\033[", '1', 'A',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT52:
- return xtermBuildKeySequence("\033", '1', 'A',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT100:
- return xtermBuildKeySequence("\033O", '1', 'A',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- }
- default:
- switch (arrowKeyMode) {
- case ANSI:
- return "\033[A";
- case VT52:
- return "\033A";
- case VT100:
- return "\033OA";
- }
- }
- }
-
- if (keypress.equalsWithoutModifiers(kbDown)) {
- switch (type) {
- case XTERM:
- switch (arrowKeyMode) {
- case ANSI:
- return xtermBuildKeySequence("\033[", '1', 'B',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT52:
- return xtermBuildKeySequence("\033", '1', 'B',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT100:
- return xtermBuildKeySequence("\033O", '1', 'B',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- }
- default:
- switch (arrowKeyMode) {
- case ANSI:
- return "\033[B";
- case VT52:
- return "\033B";
- case VT100:
- return "\033OB";
- }
- }
- }
-
- if (keypress.equalsWithoutModifiers(kbHome)) {
- switch (type) {
- case XTERM:
- switch (arrowKeyMode) {
- case ANSI:
- return xtermBuildKeySequence("\033[", '1', 'H',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT52:
- return xtermBuildKeySequence("\033", '1', 'H',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT100:
- return xtermBuildKeySequence("\033O", '1', 'H',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- }
- default:
- switch (arrowKeyMode) {
- case ANSI:
- return "\033[H";
- case VT52:
- return "\033H";
- case VT100:
- return "\033OH";
- }
- }
- }
-
- if (keypress.equalsWithoutModifiers(kbEnd)) {
- switch (type) {
- case XTERM:
- switch (arrowKeyMode) {
- case ANSI:
- return xtermBuildKeySequence("\033[", '1', 'F',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT52:
- return xtermBuildKeySequence("\033", '1', 'F',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT100:
- return xtermBuildKeySequence("\033O", '1', 'F',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- }
- default:
- switch (arrowKeyMode) {
- case ANSI:
- return "\033[F";
- case VT52:
- return "\033F";
- case VT100:
- return "\033OF";
- }
- }
- }
-
- if (keypress.equals(kbF1)) {
- // PF1
- if (vt52Mode) {
- return "\033P";
- }
- return "\033OP";
- }
-
- if (keypress.equals(kbF2)) {
- // PF2
- if (vt52Mode) {
- return "\033Q";
- }
- return "\033OQ";
- }
-
- if (keypress.equals(kbF3)) {
- // PF3
- if (vt52Mode) {
- return "\033R";
- }
- return "\033OR";
- }
-
- if (keypress.equals(kbF4)) {
- // PF4
- if (vt52Mode) {
- return "\033S";
- }
- return "\033OS";
- }
-
- if (keypress.equals(kbF5)) {
- switch (type) {
- case VT100:
- return "\033Ot";
- case VT102:
- return "\033Ot";
- case VT220:
- return "\033[15~";
- case XTERM:
- return "\033[15~";
- }
- }
-
- if (keypress.equals(kbF6)) {
- switch (type) {
- case VT100:
- return "\033Ou";
- case VT102:
- return "\033Ou";
- case VT220:
- return "\033[17~";
- case XTERM:
- return "\033[17~";
- }
- }
-
- if (keypress.equals(kbF7)) {
- switch (type) {
- case VT100:
- return "\033Ov";
- case VT102:
- return "\033Ov";
- case VT220:
- return "\033[18~";
- case XTERM:
- return "\033[18~";
- }
- }
-
- if (keypress.equals(kbF8)) {
- switch (type) {
- case VT100:
- return "\033Ol";
- case VT102:
- return "\033Ol";
- case VT220:
- return "\033[19~";
- case XTERM:
- return "\033[19~";
- }
- }
-
- if (keypress.equals(kbF9)) {
- switch (type) {
- case VT100:
- return "\033Ow";
- case VT102:
- return "\033Ow";
- case VT220:
- return "\033[20~";
- case XTERM:
- return "\033[20~";
- }
- }
-
- if (keypress.equals(kbF10)) {
- switch (type) {
- case VT100:
- return "\033Ox";
- case VT102:
- return "\033Ox";
- case VT220:
- return "\033[21~";
- case XTERM:
- return "\033[21~";
- }
- }
-
- if (keypress.equals(kbF11)) {
- return "\033[23~";
- }
-
- if (keypress.equals(kbF12)) {
- return "\033[24~";
- }
-
- if (keypress.equals(kbShiftF1)) {
- // Shifted PF1
- if (vt52Mode) {
- return "\0332P";
- }
- if (type == DeviceType.XTERM) {
- return "\0331;2P";
- }
- return "\033O2P";
- }
-
- if (keypress.equals(kbShiftF2)) {
- // Shifted PF2
- if (vt52Mode) {
- return "\0332Q";
- }
- if (type == DeviceType.XTERM) {
- return "\0331;2Q";
- }
- return "\033O2Q";
- }
-
- if (keypress.equals(kbShiftF3)) {
- // Shifted PF3
- if (vt52Mode) {
- return "\0332R";
- }
- if (type == DeviceType.XTERM) {
- return "\0331;2R";
- }
- return "\033O2R";
- }
-
- if (keypress.equals(kbShiftF4)) {
- // Shifted PF4
- if (vt52Mode) {
- return "\0332S";
- }
- if (type == DeviceType.XTERM) {
- return "\0331;2S";
- }
- return "\033O2S";
- }
-
- if (keypress.equals(kbShiftF5)) {
- // Shifted F5
- return "\033[15;2~";
- }
-
- if (keypress.equals(kbShiftF6)) {
- // Shifted F6
- return "\033[17;2~";
- }
-
- if (keypress.equals(kbShiftF7)) {
- // Shifted F7
- return "\033[18;2~";
- }
-
- if (keypress.equals(kbShiftF8)) {
- // Shifted F8
- return "\033[19;2~";
- }
-
- if (keypress.equals(kbShiftF9)) {
- // Shifted F9
- return "\033[20;2~";
- }
-
- if (keypress.equals(kbShiftF10)) {
- // Shifted F10
- return "\033[21;2~";
- }
-
- if (keypress.equals(kbShiftF11)) {
- // Shifted F11
- return "\033[23;2~";
- }
-
- if (keypress.equals(kbShiftF12)) {
- // Shifted F12
- return "\033[24;2~";
- }
-
- if (keypress.equals(kbCtrlF1)) {
- // Control PF1
- if (vt52Mode) {
- return "\0335P";
- }
- if (type == DeviceType.XTERM) {
- return "\0331;5P";
- }
- return "\033O5P";
- }
-
- if (keypress.equals(kbCtrlF2)) {
- // Control PF2
- if (vt52Mode) {
- return "\0335Q";
- }
- if (type == DeviceType.XTERM) {
- return "\0331;5Q";
- }
- return "\033O5Q";
- }
-
- if (keypress.equals(kbCtrlF3)) {
- // Control PF3
- if (vt52Mode) {
- return "\0335R";
- }
- if (type == DeviceType.XTERM) {
- return "\0331;5R";
- }
- return "\033O5R";
- }
-
- if (keypress.equals(kbCtrlF4)) {
- // Control PF4
- if (vt52Mode) {
- return "\0335S";
- }
- if (type == DeviceType.XTERM) {
- return "\0331;5S";
- }
- return "\033O5S";
- }
-
- if (keypress.equals(kbCtrlF5)) {
- // Control F5
- return "\033[15;5~";
- }
-
- if (keypress.equals(kbCtrlF6)) {
- // Control F6
- return "\033[17;5~";
- }
-
- if (keypress.equals(kbCtrlF7)) {
- // Control F7
- return "\033[18;5~";
- }
-
- if (keypress.equals(kbCtrlF8)) {
- // Control F8
- return "\033[19;5~";
- }
-
- if (keypress.equals(kbCtrlF9)) {
- // Control F9
- return "\033[20;5~";
- }
-
- if (keypress.equals(kbCtrlF10)) {
- // Control F10
- return "\033[21;5~";
- }
-
- if (keypress.equals(kbCtrlF11)) {
- // Control F11
- return "\033[23;5~";
- }
-
- if (keypress.equals(kbCtrlF12)) {
- // Control F12
- return "\033[24;5~";
- }
-
- if (keypress.equalsWithoutModifiers(kbPgUp)) {
- switch (type) {
- case XTERM:
- return xtermBuildKeySequence("\033[", '5', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- default:
- return "\033[5~";
- }
- }
-
- if (keypress.equalsWithoutModifiers(kbPgDn)) {
- switch (type) {
- case XTERM:
- return xtermBuildKeySequence("\033[", '6', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- default:
- return "\033[6~";
- }
- }
-
- if (keypress.equalsWithoutModifiers(kbIns)) {
- switch (type) {
- case XTERM:
- return xtermBuildKeySequence("\033[", '2', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- default:
- return "\033[2~";
- }
- }
-
- if (keypress.equalsWithoutModifiers(kbDel)) {
- switch (type) {
- case XTERM:
- return xtermBuildKeySequence("\033[", '3', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- default:
- // Delete sends real delete for VTxxx
- return "\177";
- }
- }
-
- if (keypress.equals(kbEnter)) {
- return "\015";
- }
-
- if (keypress.equals(kbEsc)) {
- return "\033";
- }
-
- if (keypress.equals(kbAltEsc)) {
- return "\033\033";
- }
-
- if (keypress.equals(kbTab)) {
- return "\011";
- }
-
- if ((keypress.equalsWithoutModifiers(kbBackTab)) ||
- (keypress.equals(kbShiftTab))
- ) {
- switch (type) {
- case XTERM:
- return "\033[Z";
- default:
- return "\011";
- }
- }
-
- // Non-alt, non-ctrl characters
- if (!keypress.isFnKey()) {
- StringBuilder sb = new StringBuilder();
- sb.append(Character.toChars(keypress.getChar()));
- return sb.toString();
- }
- return "";
- }
-
- /**
- * Map a symbol in any one of the VT100/VT220 character sets to a Unicode
- * symbol.
- *
- * @param ch 8-bit character from the remote side
- * @param charsetGl character set defined for GL
- * @param charsetGr character set defined for GR
- * @return character to display on the screen
- */
- private char mapCharacterCharset(final int ch,
- final CharacterSet charsetGl,
- final CharacterSet charsetGr) {
-
- int lookupChar = ch;
- CharacterSet lookupCharset = charsetGl;
-
- if (ch >= 0x80) {
- assert ((type == DeviceType.VT220) || (type == DeviceType.XTERM));
- lookupCharset = charsetGr;
- lookupChar &= 0x7F;
- }
-
- switch (lookupCharset) {
-
- case DRAWING:
- return DECCharacterSets.SPECIAL_GRAPHICS[lookupChar];
-
- case UK:
- return DECCharacterSets.UK[lookupChar];
-
- case US:
- return DECCharacterSets.US_ASCII[lookupChar];
-
- case NRC_DUTCH:
- return DECCharacterSets.NL[lookupChar];
-
- case NRC_FINNISH:
- return DECCharacterSets.FI[lookupChar];
-
- case NRC_FRENCH:
- return DECCharacterSets.FR[lookupChar];
-
- case NRC_FRENCH_CA:
- return DECCharacterSets.FR_CA[lookupChar];
-
- case NRC_GERMAN:
- return DECCharacterSets.DE[lookupChar];
-
- case NRC_ITALIAN:
- return DECCharacterSets.IT[lookupChar];
-
- case NRC_NORWEGIAN:
- return DECCharacterSets.NO[lookupChar];
-
- case NRC_SPANISH:
- return DECCharacterSets.ES[lookupChar];
-
- case NRC_SWEDISH:
- return DECCharacterSets.SV[lookupChar];
-
- case NRC_SWISS:
- return DECCharacterSets.SWISS[lookupChar];
-
- case DEC_SUPPLEMENTAL:
- return DECCharacterSets.DEC_SUPPLEMENTAL[lookupChar];
-
- case VT52_GRAPHICS:
- return DECCharacterSets.VT52_SPECIAL_GRAPHICS[lookupChar];
-
- case ROM:
- return DECCharacterSets.US_ASCII[lookupChar];
-
- case ROM_SPECIAL:
- return DECCharacterSets.US_ASCII[lookupChar];
-
- default:
- throw new IllegalArgumentException("Invalid character set value: "
- + lookupCharset);
- }
- }
-
- /**
- * Map an 8-bit byte into a printable character.
- *
- * @param ch either 8-bit or Unicode character from the remote side
- * @return character to display on the screen
- */
- private int mapCharacter(final int ch) {
- if (ch >= 0x100) {
- // Unicode character, just return it
- return ch;
- }
-
- CharacterSet charsetGl = currentState.g0Charset;
- CharacterSet charsetGr = currentState.grCharset;
-
- if (vt52Mode == true) {
- if (shiftOut == true) {
- // Shifted out character, pull from VT52 graphics
- charsetGl = currentState.g1Charset;
- charsetGr = CharacterSet.US;
- } else {
- // Normal
- charsetGl = currentState.g0Charset;
- charsetGr = CharacterSet.US;
- }
-
- // Pull the character
- return mapCharacterCharset(ch, charsetGl, charsetGr);
- }
-
- // shiftOout
- if (shiftOut == true) {
- // Shifted out character, pull from G1
- charsetGl = currentState.g1Charset;
- charsetGr = currentState.grCharset;
-
- // Pull the character
- return mapCharacterCharset(ch, charsetGl, charsetGr);
- }
-
- // SS2
- if (singleshift == Singleshift.SS2) {
-
- singleshift = Singleshift.NONE;
-
- // Shifted out character, pull from G2
- charsetGl = currentState.g2Charset;
- charsetGr = currentState.grCharset;
- }
-
- // SS3
- if (singleshift == Singleshift.SS3) {
-
- singleshift = Singleshift.NONE;
-
- // Shifted out character, pull from G3
- charsetGl = currentState.g3Charset;
- charsetGr = currentState.grCharset;
- }
-
- if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) {
- // Check for locking shift
-
- switch (currentState.glLockshift) {
-
- case G1_GR:
- throw new IllegalArgumentException("programming bug");
-
- case G2_GR:
- throw new IllegalArgumentException("programming bug");
-
- case G3_GR:
- throw new IllegalArgumentException("programming bug");
-
- case G2_GL:
- // LS2
- charsetGl = currentState.g2Charset;
- break;
-
- case G3_GL:
- // LS3
- charsetGl = currentState.g3Charset;
- break;
-
- case NONE:
- // Normal
- charsetGl = currentState.g0Charset;
- break;
- }
-
- switch (currentState.grLockshift) {
-
- case G2_GL:
- throw new IllegalArgumentException("programming bug");
-
- case G3_GL:
- throw new IllegalArgumentException("programming bug");
-
- case G1_GR:
- // LS1R
- charsetGr = currentState.g1Charset;
- break;
-
- case G2_GR:
- // LS2R
- charsetGr = currentState.g2Charset;
- break;
-
- case G3_GR:
- // LS3R
- charsetGr = currentState.g3Charset;
- break;
-
- case NONE:
- // Normal
- charsetGr = CharacterSet.DEC_SUPPLEMENTAL;
- break;
- }
-
-
- }
-
- // Pull the character
- return mapCharacterCharset(ch, charsetGl, charsetGr);
- }
-
- /**
- * Scroll the text within a scrolling region up n lines.
- *
- * @param regionTop top row of the scrolling region
- * @param regionBottom bottom row of the scrolling region
- * @param n number of lines to scroll
- */
- private void scrollingRegionScrollUp(final int regionTop,
- final int regionBottom, final int n) {
-
- if (regionTop >= regionBottom) {
- return;
- }
-
- // Sanity check: see if there will be any characters left after the
- // scroll
- if (regionBottom + 1 - regionTop <= n) {
- // There won't be anything left in the region, so just call
- // eraseScreen() and return.
- eraseScreen(regionTop, 0, regionBottom, width - 1, false);
- return;
- }
-
- int remaining = regionBottom + 1 - regionTop - n;
- List<DisplayLine> displayTop = display.subList(0, regionTop);
- List<DisplayLine> displayBottom = display.subList(regionBottom + 1,
- display.size());
- List<DisplayLine> displayMiddle = display.subList(regionBottom + 1
- - remaining, regionBottom + 1);
- display = new ArrayList<DisplayLine>(displayTop);
- display.addAll(displayMiddle);
- for (int i = 0; i < n; i++) {
- DisplayLine line = new DisplayLine(currentState.attr);
- line.setReverseColor(reverseVideo);
- display.add(line);
- }
- display.addAll(displayBottom);
-
- assert (display.size() == height);
- }
-
- /**
- * Scroll the text within a scrolling region down n lines.
- *
- * @param regionTop top row of the scrolling region
- * @param regionBottom bottom row of the scrolling region
- * @param n number of lines to scroll
- */
- private void scrollingRegionScrollDown(final int regionTop,
- final int regionBottom, final int n) {
-
- if (regionTop >= regionBottom) {
- return;
- }
-
- // Sanity check: see if there will be any characters left after the
- // scroll
- if (regionBottom + 1 - regionTop <= n) {
- // There won't be anything left in the region, so just call
- // eraseScreen() and return.
- eraseScreen(regionTop, 0, regionBottom, width - 1, false);
- return;
- }
-
- int remaining = regionBottom + 1 - regionTop - n;
- List<DisplayLine> displayTop = display.subList(0, regionTop);
- List<DisplayLine> displayBottom = display.subList(regionBottom + 1,
- display.size());
- List<DisplayLine> displayMiddle = display.subList(regionTop,
- regionTop + remaining);
- display = new ArrayList<DisplayLine>(displayTop);
- for (int i = 0; i < n; i++) {
- DisplayLine line = new DisplayLine(currentState.attr);
- line.setReverseColor(reverseVideo);
- display.add(line);
- }
- display.addAll(displayMiddle);
- display.addAll(displayBottom);
-
- assert (display.size() == height);
- }
-
- /**
- * Process a control character.
- *
- * @param ch 8-bit character from the remote side
- */
- private void handleControlChar(final char ch) {
- assert ((ch <= 0x1F) || ((ch >= 0x7F) && (ch <= 0x9F)));
-
- switch (ch) {
-
- case 0x00:
- // NUL - discard
- return;
-
- case 0x05:
- // ENQ
-
- // Transmit the answerback message.
- // Not supported
- break;
-
- case 0x07:
- // BEL
- // Not supported
- break;
-
- case 0x08:
- // BS
- cursorLeft(1, false);
- break;
-
- case 0x09:
- // HT
- advanceToNextTabStop();
- break;
-
- case 0x0A:
- // LF
- linefeed();
- break;
-
- case 0x0B:
- // VT
- linefeed();
- break;
-
- case 0x0C:
- // FF
- linefeed();
- break;
-
- case 0x0D:
- // CR
- carriageReturn();
- break;
-
- case 0x0E:
- // SO
- shiftOut = true;
- currentState.glLockshift = LockshiftMode.NONE;
- break;
-
- case 0x0F:
- // SI
- shiftOut = false;
- currentState.glLockshift = LockshiftMode.NONE;
- break;
-
- case 0x84:
- // IND
- ind();
- break;
-
- case 0x85:
- // NEL
- nel();
- break;
-
- case 0x88:
- // HTS
- hts();
- break;
-
- case 0x8D:
- // RI
- ri();
- break;
-
- case 0x8E:
- // SS2
- singleshift = Singleshift.SS2;
- break;
-
- case 0x8F:
- // SS3
- singleshift = Singleshift.SS3;
- break;
-
- default:
- break;
- }
-
- }
-
- /**
- * Advance the cursor to the next tab stop.
- */
- private void advanceToNextTabStop() {
- if (tabStops.size() == 0) {
- // Go to the rightmost column
- cursorRight(rightMargin - currentState.cursorX, false);
- return;
- }
- for (Integer stop: tabStops) {
- if (stop > currentState.cursorX) {
- cursorRight(stop - currentState.cursorX, false);
- return;
- }
- }
- /*
- * We got here, meaning there isn't a tab stop beyond the current
- * cursor position. Place the cursor of the right-most edge of the
- * screen.
- */
- cursorRight(rightMargin - currentState.cursorX, false);
- }
-
- /**
- * Save a character into the collect buffer.
- *
- * @param ch character to save
- */
- private void collect(final char ch) {
- collectBuffer.append(ch);
- }
-
- /**
- * Save a byte into the CSI parameters buffer.
- *
- * @param ch byte to save
- */
- private void param(final byte ch) {
- if (csiParams.size() == 0) {
- csiParams.add(Integer.valueOf(0));
- }
- Integer x = csiParams.get(csiParams.size() - 1);
- if ((ch >= '0') && (ch <= '9')) {
- x *= 10;
- x += (ch - '0');
- csiParams.set(csiParams.size() - 1, x);
- }
-
- if ((ch == ';') && (csiParams.size() < 16)) {
- csiParams.add(Integer.valueOf(0));
- }
- }
-
- /**
- * Get a CSI parameter value, with a default.
- *
- * @param position parameter index. 0 is the first parameter.
- * @param defaultValue value to use if csiParams[position] doesn't exist
- * @return parameter value
- */
- private int getCsiParam(final int position, final int defaultValue) {
- if (csiParams.size() < position + 1) {
- return defaultValue;
- }
- return csiParams.get(position).intValue();
- }
-
- /**
- * Get a CSI parameter value, clamped to within min/max.
- *
- * @param position parameter index. 0 is the first parameter.
- * @param defaultValue value to use if csiParams[position] doesn't exist
- * @param minValue minimum value inclusive
- * @param maxValue maximum value inclusive
- * @return parameter value
- */
- private int getCsiParam(final int position, final int defaultValue,
- final int minValue, final int maxValue) {
-
- assert (minValue <= maxValue);
- int value = getCsiParam(position, defaultValue);
- if (value < minValue) {
- value = minValue;
- }
- if (value > maxValue) {
- value = maxValue;
- }
- return value;
- }
-
- /**
- * Set or unset a toggle.
- *
- * @param value true for set ('h'), false for reset ('l')
- */
- private void setToggle(final boolean value) {
- boolean decPrivateModeFlag = false;
-
- for (int i = 0; i < collectBuffer.length(); i++) {
- if (collectBuffer.charAt(i) == '?') {
- decPrivateModeFlag = true;
- break;
- }
- }
-
- for (Integer i: csiParams) {
-
- switch (i) {
-
- case 1:
- if (decPrivateModeFlag == true) {
- // DECCKM
- if (value == true) {
- // Use application arrow keys
- arrowKeyMode = ArrowKeyMode.VT100;
- } else {
- // Use ANSI arrow keys
- arrowKeyMode = ArrowKeyMode.ANSI;
- }
- }
- break;
- case 2:
- if (decPrivateModeFlag == true) {
- if (value == false) {
-
- // DECANM
- vt52Mode = true;
- arrowKeyMode = ArrowKeyMode.VT52;
-
- /*
- * From the VT102 docs: "You use ANSI mode to select
- * most terminal features; the terminal uses the same
- * features when it switches to VT52 mode. You
- * cannot, however, change most of these features in
- * VT52 mode."
- *
- * In other words, do not reset any other attributes
- * when switching between VT52 submode and ANSI.
- *
- * HOWEVER, the real vt100 does switch the character
- * set according to Usenet.
- */
- currentState.g0Charset = CharacterSet.US;
- currentState.g1Charset = CharacterSet.DRAWING;
- shiftOut = false;
-
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- // VT52 mode is explicitly 7-bit
- s8c1t = false;
- singleshift = Singleshift.NONE;
- }
- }
- } else {
- // KAM
- if (value == true) {
- // Turn off keyboard
- // Not supported
- } else {
- // Turn on keyboard
- // Not supported
- }
- }
- break;
- case 3:
- if (decPrivateModeFlag == true) {
- // DECCOLM
- if (value == true) {
- // 132 columns
- columns132 = true;
- rightMargin = 131;
- } else {
- // 80 columns
- columns132 = false;
- if ((displayListener != null)
- && (type == DeviceType.XTERM)
- ) {
- // For xterms, reset to the actual width, not 80
- // columns.
- width = displayListener.getDisplayWidth();
- rightMargin = width - 1;
- } else {
- rightMargin = 79;
- width = rightMargin + 1;
- }
- }
- // Entire screen is cleared, and scrolling region is
- // reset
- eraseScreen(0, 0, height - 1, width - 1, false);
- scrollRegionTop = 0;
- scrollRegionBottom = height - 1;
- // Also home the cursor
- cursorPosition(0, 0);
- }
- break;
- case 4:
- if (decPrivateModeFlag == true) {
- // DECSCLM
- if (value == true) {
- // Smooth scroll
- // Not supported
- } else {
- // Jump scroll
- // Not supported
- }
- } else {
- // IRM
- if (value == true) {
- insertMode = true;
- } else {
- insertMode = false;
- }
- }
- break;
- case 5:
- if (decPrivateModeFlag == true) {
- // DECSCNM
- if (value == true) {
- /*
- * Set selects reverse screen, a white screen
- * background with black characters.
- */
- if (reverseVideo != true) {
- /*
- * If in normal video, switch it back
- */
- invertDisplayColors();
- }
- reverseVideo = true;
- } else {
- /*
- * Reset selects normal screen, a black screen
- * background with white characters.
- */
- if (reverseVideo == true) {
- /*
- * If in reverse video already, switch it back
- */
- invertDisplayColors();
- }
- reverseVideo = false;
- }
- }
- break;
- case 6:
- if (decPrivateModeFlag == true) {
- // DECOM
- if (value == true) {
- // Origin is relative to scroll region cursor.
- // Cursor can NEVER leave scrolling region.
- currentState.originMode = true;
- cursorPosition(0, 0);
- } else {
- // Origin is absolute to entire screen. Cursor can
- // leave the scrolling region via cup() and hvp().
- currentState.originMode = false;
- cursorPosition(0, 0);
- }
- }
- break;
- case 7:
- if (decPrivateModeFlag == true) {
- // DECAWM
- if (value == true) {
- // Turn linewrap on
- currentState.lineWrap = true;
- } else {
- // Turn linewrap off
- currentState.lineWrap = false;
- }
- }
- break;
- case 8:
- if (decPrivateModeFlag == true) {
- // DECARM
- if (value == true) {
- // Keyboard auto-repeat on
- // Not supported
- } else {
- // Keyboard auto-repeat off
- // Not supported
- }
- }
- break;
- case 12:
- if (decPrivateModeFlag == false) {
- // SRM
- if (value == true) {
- // Local echo off
- fullDuplex = true;
- } else {
- // Local echo on
- fullDuplex = false;
- }
- }
- break;
- case 18:
- if (decPrivateModeFlag == true) {
- // DECPFF
- // Not supported
- }
- break;
- case 19:
- if (decPrivateModeFlag == true) {
- // DECPEX
- // Not supported
- }
- break;
- case 20:
- if (decPrivateModeFlag == false) {
- // LNM
- if (value == true) {
- /*
- * Set causes a received linefeed, form feed, or
- * vertical tab to move cursor to first column of
- * next line. RETURN transmits both a carriage return
- * and linefeed. This selection is also called new
- * line option.
- */
- newLineMode = true;
- } else {
- /*
- * Reset causes a received linefeed, form feed, or
- * vertical tab to move cursor to next line in
- * current column. RETURN transmits a carriage
- * return.
- */
- newLineMode = false;
- }
- }
- break;
-
- case 25:
- if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) {
- if (decPrivateModeFlag == true) {
- // DECTCEM
- if (value == true) {
- // Visible cursor
- cursorVisible = true;
- } else {
- // Invisible cursor
- cursorVisible = false;
- }
- }
- }
- break;
-
- case 42:
- if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) {
- if (decPrivateModeFlag == true) {
- // DECNRCM
- if (value == true) {
- // Select national mode NRC
- // Not supported
- } else {
- // Select multi-national mode
- // Not supported
- }
- }
- }
-
- break;
-
- case 80:
- if (type == DeviceType.XTERM) {
- if (decPrivateModeFlag == true) {
- if (value == true) {
- // Enable sixel scrolling (default).
- // TODO
- } else {
- // Disable sixel scrolling.
- // TODO
- }
- }
- }
-
- break;
-
- case 1000:
- if ((type == DeviceType.XTERM)
- && (decPrivateModeFlag == true)
- ) {
- // Mouse: normal tracking mode
- if (value == true) {
- mouseProtocol = MouseProtocol.NORMAL;
- } else {
- mouseProtocol = MouseProtocol.OFF;
- }
- }
- break;
-
- case 1002:
- if ((type == DeviceType.XTERM)
- && (decPrivateModeFlag == true)
- ) {
- // Mouse: normal tracking mode
- if (value == true) {
- mouseProtocol = MouseProtocol.BUTTONEVENT;
- } else {
- mouseProtocol = MouseProtocol.OFF;
- }
- }
- break;
-
- case 1003:
- if ((type == DeviceType.XTERM)
- && (decPrivateModeFlag == true)
- ) {
- // Mouse: Any-event tracking mode
- if (value == true) {
- mouseProtocol = MouseProtocol.ANYEVENT;
- } else {
- mouseProtocol = MouseProtocol.OFF;
- }
- }
- break;
-
- case 1005:
- if ((type == DeviceType.XTERM)
- && (decPrivateModeFlag == true)
- ) {
- // Mouse: UTF-8 coordinates
- if (value == true) {
- mouseEncoding = MouseEncoding.UTF8;
- } else {
- mouseEncoding = MouseEncoding.X10;
- }
- }
- break;
-
- case 1006:
- if ((type == DeviceType.XTERM)
- && (decPrivateModeFlag == true)
- ) {
- // Mouse: SGR coordinates
- if (value == true) {
- mouseEncoding = MouseEncoding.SGR;
- } else {
- mouseEncoding = MouseEncoding.X10;
- }
- }
- break;
-
- case 1070:
- if (type == DeviceType.XTERM) {
- if (decPrivateModeFlag == true) {
- if (value == true) {
- // Use private color registers for each sixel
- // graphic (default).
- sixelPalette = null;
- } else {
- // Use shared color registers for each sixel
- // graphic.
- sixelPalette = new HashMap<Integer, java.awt.Color>();
- }
- }
- }
- break;
-
- default:
- break;
-
- }
- }
- }
-
- /**
- * DECSC - Save cursor.
- */
- private void decsc() {
- savedState.setTo(currentState);
- }
-
- /**
- * DECRC - Restore cursor.
- */
- private void decrc() {
- currentState.setTo(savedState);
- }
-
- /**
- * IND - Index.
- */
- private void ind() {
- // Move the cursor and scroll if necessary. If at the bottom line
- // already, a scroll up is supposed to be performed.
- if (currentState.cursorY == scrollRegionBottom) {
- scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, 1);
- }
- cursorDown(1, true);
- }
-
- /**
- * RI - Reverse index.
- */
- private void ri() {
- // Move the cursor and scroll if necessary. If at the top line
- // already, a scroll down is supposed to be performed.
- if (currentState.cursorY == scrollRegionTop) {
- scrollingRegionScrollDown(scrollRegionTop, scrollRegionBottom, 1);
- }
- cursorUp(1, true);
- }
-
- /**
- * NEL - Next line.
- */
- private void nel() {
- // Move the cursor and scroll if necessary. If at the bottom line
- // already, a scroll up is supposed to be performed.
- if (currentState.cursorY == scrollRegionBottom) {
- scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, 1);
- }
- cursorDown(1, true);
-
- // Reset to the beginning of the next line
- currentState.cursorX = 0;
- }
-
- /**
- * DECKPAM - Keypad application mode.
- */
- private void deckpam() {
- keypadMode = KeypadMode.Application;
- }
-
- /**
- * DECKPNM - Keypad numeric mode.
- */
- private void deckpnm() {
- keypadMode = KeypadMode.Numeric;
- }
-
- /**
- * Move up n spaces.
- *
- * @param n number of spaces to move
- * @param honorScrollRegion if true, then do nothing if the cursor is
- * outside the scrolling region
- */
- private void cursorUp(final int n, final boolean honorScrollRegion) {
- int top;
-
- /*
- * Special case: if a user moves the cursor from the right margin, we
- * have to reset the VT100 right margin flag.
- */
- if (n > 0) {
- wrapLineFlag = false;
- }
-
- for (int i = 0; i < n; i++) {
- if (honorScrollRegion == true) {
- // Honor the scrolling region
- if ((currentState.cursorY < scrollRegionTop)
- || (currentState.cursorY > scrollRegionBottom)
- ) {
- // Outside region, do nothing
- return;
- }
- // Inside region, go up
- top = scrollRegionTop;
- } else {
- // Non-scrolling case
- top = 0;
- }
-
- if (currentState.cursorY > top) {
- currentState.cursorY--;
- }
- }
- }
-
- /**
- * Move down n spaces.
- *
- * @param n number of spaces to move
- * @param honorScrollRegion if true, then do nothing if the cursor is
- * outside the scrolling region
- */
- private void cursorDown(final int n, final boolean honorScrollRegion) {
- int bottom;
-
- /*
- * Special case: if a user moves the cursor from the right margin, we
- * have to reset the VT100 right margin flag.
- */
- if (n > 0) {
- wrapLineFlag = false;
- }
-
- for (int i = 0; i < n; i++) {
-
- if (honorScrollRegion == true) {
- // Honor the scrolling region
- if (currentState.cursorY > scrollRegionBottom) {
- // Outside region, do nothing
- return;
- }
- // Inside region, go down
- bottom = scrollRegionBottom;
- } else {
- // Non-scrolling case
- bottom = height - 1;
- }
-
- if (currentState.cursorY < bottom) {
- currentState.cursorY++;
- }
- }
- }
-
- /**
- * Move left n spaces.
- *
- * @param n number of spaces to move
- * @param honorScrollRegion if true, then do nothing if the cursor is
- * outside the scrolling region
- */
- private void cursorLeft(final int n, final boolean honorScrollRegion) {
- /*
- * Special case: if a user moves the cursor from the right margin, we
- * have to reset the VT100 right margin flag.
- */
- if (n > 0) {
- wrapLineFlag = false;
- }
-
- for (int i = 0; i < n; i++) {
- if (honorScrollRegion == true) {
- // Honor the scrolling region
- if ((currentState.cursorY < scrollRegionTop)
- || (currentState.cursorY > scrollRegionBottom)
- ) {
- // Outside region, do nothing
- return;
- }
- }
-
- if (currentState.cursorX > 0) {
- currentState.cursorX--;
- }
- }
- }
-
- /**
- * Move right n spaces.
- *
- * @param n number of spaces to move
- * @param honorScrollRegion if true, then do nothing if the cursor is
- * outside the scrolling region
- */
- private void cursorRight(final int n, final boolean honorScrollRegion) {
- int rightMargin = this.rightMargin;
-
- /*
- * Special case: if a user moves the cursor from the right margin, we
- * have to reset the VT100 right margin flag.
- */
- if (n > 0) {
- wrapLineFlag = false;
- }
-
- if (display.get(currentState.cursorY).isDoubleWidth()) {
- rightMargin = ((rightMargin + 1) / 2) - 1;
- }
-
- for (int i = 0; i < n; i++) {
- if (honorScrollRegion == true) {
- // Honor the scrolling region
- if ((currentState.cursorY < scrollRegionTop)
- || (currentState.cursorY > scrollRegionBottom)
- ) {
- // Outside region, do nothing
- return;
- }
- }
-
- if (currentState.cursorX < rightMargin) {
- currentState.cursorX++;
- }
- }
- }
-
- /**
- * Move cursor to (col, row) where (0, 0) is the top-left corner.
- *
- * @param row row to move to
- * @param col column to move to
- */
- private void cursorPosition(int row, final int col) {
- int rightMargin = this.rightMargin;
-
- assert (col >= 0);
- assert (row >= 0);
-
- if (display.get(currentState.cursorY).isDoubleWidth()) {
- rightMargin = ((rightMargin + 1) / 2) - 1;
- }
-
- // Set column number
- currentState.cursorX = col;
-
- // Sanity check, bring column back to margin.
- if (currentState.cursorX > rightMargin) {
- currentState.cursorX = rightMargin;
- }
-
- // Set row number
- if (currentState.originMode == true) {
- row += scrollRegionTop;
- }
- if (currentState.cursorY < row) {
- cursorDown(row - currentState.cursorY, false);
- } else if (currentState.cursorY > row) {
- cursorUp(currentState.cursorY - row, false);
- }
-
- wrapLineFlag = false;
- }
-
- /**
- * HTS - Horizontal tabulation set.
- */
- private void hts() {
- for (Integer stop: tabStops) {
- if (stop == currentState.cursorX) {
- // Already have a tab stop here
- return;
- }
- }
-
- // Append a tab stop to the end of the array and resort them
- tabStops.add(currentState.cursorX);
- Collections.sort(tabStops);
- }
-
- /**
- * DECSWL - Single-width line.
- */
- private void decswl() {
- display.get(currentState.cursorY).setDoubleWidth(false);
- display.get(currentState.cursorY).setDoubleHeight(0);
- }
-
- /**
- * DECDWL - Double-width line.
- */
- private void decdwl() {
- display.get(currentState.cursorY).setDoubleWidth(true);
- display.get(currentState.cursorY).setDoubleHeight(0);
- }
-
- /**
- * DECHDL - Double-height + double-width line.
- *
- * @param topHalf if true, this sets the row to be the top half row of a
- * double-height row
- */
- private void dechdl(final boolean topHalf) {
- display.get(currentState.cursorY).setDoubleWidth(true);
- if (topHalf == true) {
- display.get(currentState.cursorY).setDoubleHeight(1);
- } else {
- display.get(currentState.cursorY).setDoubleHeight(2);
- }
- }
-
- /**
- * DECALN - Screen alignment display.
- */
- private void decaln() {
- Cell newCell = new Cell('E');
- for (DisplayLine line: display) {
- for (int i = 0; i < line.length(); i++) {
- line.replace(i, newCell);
- }
- }
- }
-
- /**
- * DECSCL - Compatibility level.
- */
- private void decscl() {
- int i = getCsiParam(0, 0);
- int j = getCsiParam(1, 0);
-
- if (i == 61) {
- // Reset fonts
- currentState.g0Charset = CharacterSet.US;
- currentState.g1Charset = CharacterSet.DRAWING;
- s8c1t = false;
- } else if (i == 62) {
-
- if ((j == 0) || (j == 2)) {
- s8c1t = true;
- } else if (j == 1) {
- s8c1t = false;
- }
- }
- }
-
- /**
- * CUD - Cursor down.
- */
- private void cud() {
- cursorDown(getCsiParam(0, 1, 1, height), true);
- }
-
- /**
- * CUF - Cursor forward.
- */
- private void cuf() {
- cursorRight(getCsiParam(0, 1, 1, rightMargin + 1), true);
- }
-
- /**
- * CUB - Cursor backward.
- */
- private void cub() {
- cursorLeft(getCsiParam(0, 1, 1, currentState.cursorX + 1), true);
- }
-
- /**
- * CUU - Cursor up.
- */
- private void cuu() {
- cursorUp(getCsiParam(0, 1, 1, currentState.cursorY + 1), true);
- }
-
- /**
- * CUP - Cursor position.
- */
- private void cup() {
- cursorPosition(getCsiParam(0, 1, 1, height) - 1,
- getCsiParam(1, 1, 1, rightMargin + 1) - 1);
- }
-
- /**
- * CNL - Cursor down and to column 1.
- */
- private void cnl() {
- cursorDown(getCsiParam(0, 1, 1, height), true);
- // To column 0
- cursorLeft(currentState.cursorX, true);
- }
-
- /**
- * CPL - Cursor up and to column 1.
- */
- private void cpl() {
- cursorUp(getCsiParam(0, 1, 1, currentState.cursorY + 1), true);
- // To column 0
- cursorLeft(currentState.cursorX, true);
- }
-
- /**
- * CHA - Cursor to column # in current row.
- */
- private void cha() {
- cursorPosition(currentState.cursorY,
- getCsiParam(0, 1, 1, rightMargin + 1) - 1);
- }
-
- /**
- * VPA - Cursor to row #, same column.
- */
- private void vpa() {
- cursorPosition(getCsiParam(0, 1, 1, height) - 1,
- currentState.cursorX);
- }
-
- /**
- * ED - Erase in display.
- */
- private void ed() {
- boolean honorProtected = false;
- boolean decPrivateModeFlag = false;
-
- for (int i = 0; i < collectBuffer.length(); i++) {
- if (collectBuffer.charAt(i) == '?') {
- decPrivateModeFlag = true;
- break;
- }
- }
-
- if (((type == DeviceType.VT220) || (type == DeviceType.XTERM))
- && (decPrivateModeFlag == true)
- ) {
- honorProtected = true;
- }
-
- int i = getCsiParam(0, 0);
-
- if (i == 0) {
- // Erase from here to end of screen
- if (currentState.cursorY < height - 1) {
- eraseScreen(currentState.cursorY + 1, 0, height - 1, width - 1,
- honorProtected);
- }
- eraseLine(currentState.cursorX, width - 1, honorProtected);
- } else if (i == 1) {
- // Erase from beginning of screen to here
- eraseScreen(0, 0, currentState.cursorY - 1, width - 1,
- honorProtected);
- eraseLine(0, currentState.cursorX, honorProtected);
- } else if (i == 2) {
- // Erase entire screen
- eraseScreen(0, 0, height - 1, width - 1, honorProtected);
- }
- }
-
- /**
- * EL - Erase in line.
- */
- private void el() {
- boolean honorProtected = false;
- boolean decPrivateModeFlag = false;
-
- for (int i = 0; i < collectBuffer.length(); i++) {
- if (collectBuffer.charAt(i) == '?') {
- decPrivateModeFlag = true;
- break;
- }
- }
-
- if (((type == DeviceType.VT220) || (type == DeviceType.XTERM))
- && (decPrivateModeFlag == true)
- ) {
- honorProtected = true;
- }
-
- int i = getCsiParam(0, 0);
-
- if (i == 0) {
- // Erase from here to end of line
- eraseLine(currentState.cursorX, width - 1, honorProtected);
- } else if (i == 1) {
- // Erase from beginning of line to here
- eraseLine(0, currentState.cursorX, honorProtected);
- } else if (i == 2) {
- // Erase entire line
- eraseLine(0, width - 1, honorProtected);
- }
- }
-
- /**
- * ECH - Erase # of characters in current row.
- */
- private void ech() {
- int i = getCsiParam(0, 1, 1, width);
-
- // Erase from here to i characters
- eraseLine(currentState.cursorX, currentState.cursorX + i - 1, false);
- }
-
- /**
- * IL - Insert line.
- */
- private void il() {
- int i = getCsiParam(0, 1);
-
- if ((currentState.cursorY >= scrollRegionTop)
- && (currentState.cursorY <= scrollRegionBottom)
- ) {
-
- // I can get the same effect with a scroll-down
- scrollingRegionScrollDown(currentState.cursorY,
- scrollRegionBottom, i);
- }
- }
-
- /**
- * DCH - Delete char.
- */
- private void dch() {
- int n = getCsiParam(0, 1);
- DisplayLine line = display.get(currentState.cursorY);
- Cell blank = new Cell();
- for (int i = 0; i < n; i++) {
- line.delete(currentState.cursorX, blank);
- }
- }
-
- /**
- * ICH - Insert blank char at cursor.
- */
- private void ich() {
- int n = getCsiParam(0, 1);
- DisplayLine line = display.get(currentState.cursorY);
- Cell blank = new Cell();
- for (int i = 0; i < n; i++) {
- line.insert(currentState.cursorX, blank);
- }
- }
-
- /**
- * DL - Delete line.
- */
- private void dl() {
- int i = getCsiParam(0, 1);
-
- if ((currentState.cursorY >= scrollRegionTop)
- && (currentState.cursorY <= scrollRegionBottom)) {
-
- // I can get the same effect with a scroll-down
- scrollingRegionScrollUp(currentState.cursorY,
- scrollRegionBottom, i);
- }
- }
-
- /**
- * HVP - Horizontal and vertical position.
- */
- private void hvp() {
- cup();
- }
-
- /**
- * REP - Repeat character.
- */
- private void rep() {
- int n = getCsiParam(0, 1);
- for (int i = 0; i < n; i++) {
- printCharacter(repCh);
- }
- }
-
- /**
- * SU - Scroll up.
- */
- private void su() {
- scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom,
- getCsiParam(0, 1, 1, height));
- }
-
- /**
- * SD - Scroll down.
- */
- private void sd() {
- scrollingRegionScrollDown(scrollRegionTop, scrollRegionBottom,
- getCsiParam(0, 1, 1, height));
- }
-
- /**
- * CBT - Go back X tab stops.
- */
- private void cbt() {
- int tabsToMove = getCsiParam(0, 1);
- int tabI;
-
- for (int i = 0; i < tabsToMove; i++) {
- int j = currentState.cursorX;
- for (tabI = 0; tabI < tabStops.size(); tabI++) {
- if (tabStops.get(tabI) >= currentState.cursorX) {
- break;
- }
- }
- tabI--;
- if (tabI <= 0) {
- j = 0;
- } else {
- j = tabStops.get(tabI);
- }
- cursorPosition(currentState.cursorY, j);
- }
- }
-
- /**
- * CHT - Advance X tab stops.
- */
- private void cht() {
- int n = getCsiParam(0, 1);
- for (int i = 0; i < n; i++) {
- advanceToNextTabStop();
- }
- }
-
- /**
- * SGR - Select graphics rendition.
- */
- private void sgr() {
-
- if (csiParams.size() == 0) {
- currentState.attr.reset();
- return;
- }
-
- int sgrColorMode = -1;
- boolean idx88Color = false;
- boolean rgbColor = false;
- int rgbRed = -1;
- int rgbGreen = -1;
-
- for (Integer i: csiParams) {
-
- if ((sgrColorMode == 38) || (sgrColorMode == 48)) {
-
- assert (type == DeviceType.XTERM);
-
- if (idx88Color) {
- /*
- * Indexed color mode, we now have the index number.
- */
- if (sgrColorMode == 38) {
- currentState.attr.setForeColorRGB(get88Color(i));
- } else {
- assert (sgrColorMode == 48);
- currentState.attr.setBackColorRGB(get88Color(i));
- }
- sgrColorMode = -1;
- idx88Color = false;
- continue;
- }
-
- if (rgbColor) {
- /*
- * RGB color mode, we are collecting tokens.
- */
- if (rgbRed == -1) {
- rgbRed = i & 0xFF;
- } else if (rgbGreen == -1) {
- rgbGreen = i & 0xFF;
- } else {
- int rgb = rgbRed << 16;
- rgb |= rgbGreen << 8;
- rgb |= i & 0xFF;
-
- // System.err.printf("RGB: %08x\n", rgb);
-
- if (sgrColorMode == 38) {
- currentState.attr.setForeColorRGB(rgb);
- } else {
- assert (sgrColorMode == 48);
- currentState.attr.setBackColorRGB(rgb);
- }
- rgbRed = -1;
- rgbGreen = -1;
- sgrColorMode = -1;
- rgbColor = false;
- }
- continue;
- }
-
- switch (i) {
-
- case 2:
- /*
- * RGB color mode.
- */
- rgbColor = true;
- break;
-
- case 5:
- /*
- * Indexed color mode.
- */
- idx88Color = true;
- break;
-
- default:
- /*
- * This is neither indexed nor RGB color. Bail out.
- */
- return;
- }
-
- } // if ((sgrColorMode == 38) || (sgrColorMode == 48))
-
- switch (i) {
-
- case 0:
- // Normal
- currentState.attr.reset();
- break;
-
- case 1:
- // Bold
- currentState.attr.setBold(true);
- break;
-
- case 4:
- // Underline
- currentState.attr.setUnderline(true);
- break;
-
- case 5:
- // Blink
- currentState.attr.setBlink(true);
- break;
-
- case 7:
- // Reverse
- currentState.attr.setReverse(true);
- break;
-
- default:
- break;
- }
-
- if (type == DeviceType.XTERM) {
-
- switch (i) {
-
- case 8:
- // Invisible
- // TODO
- break;
-
- case 90:
- // Set black foreground
- currentState.attr.setForeColorRGB(get88Color(8));
- break;
- case 91:
- // Set red foreground
- currentState.attr.setForeColorRGB(get88Color(9));
- break;
- case 92:
- // Set green foreground
- currentState.attr.setForeColorRGB(get88Color(10));
- break;
- case 93:
- // Set yellow foreground
- currentState.attr.setForeColorRGB(get88Color(11));
- break;
- case 94:
- // Set blue foreground
- currentState.attr.setForeColorRGB(get88Color(12));
- break;
- case 95:
- // Set magenta foreground
- currentState.attr.setForeColorRGB(get88Color(13));
- break;
- case 96:
- // Set cyan foreground
- currentState.attr.setForeColorRGB(get88Color(14));
- break;
- case 97:
- // Set white foreground
- currentState.attr.setForeColorRGB(get88Color(15));
- break;
-
- case 100:
- // Set black background
- currentState.attr.setBackColorRGB(get88Color(8));
- break;
- case 101:
- // Set red background
- currentState.attr.setBackColorRGB(get88Color(9));
- break;
- case 102:
- // Set green background
- currentState.attr.setBackColorRGB(get88Color(10));
- break;
- case 103:
- // Set yellow background
- currentState.attr.setBackColorRGB(get88Color(11));
- break;
- case 104:
- // Set blue background
- currentState.attr.setBackColorRGB(get88Color(12));
- break;
- case 105:
- // Set magenta background
- currentState.attr.setBackColorRGB(get88Color(13));
- break;
- case 106:
- // Set cyan background
- currentState.attr.setBackColorRGB(get88Color(14));
- break;
- case 107:
- // Set white background
- currentState.attr.setBackColorRGB(get88Color(15));
- break;
-
- default:
- break;
- }
- }
-
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- switch (i) {
-
- case 22:
- // Normal intensity
- currentState.attr.setBold(false);
- break;
-
- case 24:
- // No underline
- currentState.attr.setUnderline(false);
- break;
-
- case 25:
- // No blink
- currentState.attr.setBlink(false);
- break;
-
- case 27:
- // Un-reverse
- currentState.attr.setReverse(false);
- break;
-
- default:
- break;
- }
- }
-
- // A true VT100/102/220 does not support color, however everyone
- // is used to their terminal emulator supporting color so we will
- // unconditionally support color for all DeviceType's.
-
- switch (i) {
-
- case 30:
- // Set black foreground
- currentState.attr.setForeColor(Color.BLACK);
- currentState.attr.setForeColorRGB(-1);
- break;
- case 31:
- // Set red foreground
- currentState.attr.setForeColor(Color.RED);
- currentState.attr.setForeColorRGB(-1);
- break;
- case 32:
- // Set green foreground
- currentState.attr.setForeColor(Color.GREEN);
- currentState.attr.setForeColorRGB(-1);
- break;
- case 33:
- // Set yellow foreground
- currentState.attr.setForeColor(Color.YELLOW);
- currentState.attr.setForeColorRGB(-1);
- break;
- case 34:
- // Set blue foreground
- currentState.attr.setForeColor(Color.BLUE);
- currentState.attr.setForeColorRGB(-1);
- break;
- case 35:
- // Set magenta foreground
- currentState.attr.setForeColor(Color.MAGENTA);
- currentState.attr.setForeColorRGB(-1);
- break;
- case 36:
- // Set cyan foreground
- currentState.attr.setForeColor(Color.CYAN);
- currentState.attr.setForeColorRGB(-1);
- break;
- case 37:
- // Set white foreground
- currentState.attr.setForeColor(Color.WHITE);
- currentState.attr.setForeColorRGB(-1);
- break;
- case 38:
- if (type == DeviceType.XTERM) {
- /*
- * Xterm supports T.416 / ISO-8613-3 codes to select
- * either an indexed color or an RGB value. (It also
- * permits these ISO-8613-3 SGR sequences to be separated
- * by colons rather than semicolons.)
- *
- * We will support only the following:
- *
- * 1. Indexed color mode (88- or 256-color modes).
- *
- * 2. Direct RGB.
- *
- * These cover most of the use cases in the real world.
- *
- * HOWEVER, note that this is an awful broken "standard",
- * with no way to do it "right". See
- * http://invisible-island.net/ncurses/ncurses.faq.html#xterm_16MegaColors
- * for a detailed discussion of the current state of RGB
- * in various terminals, the point of which is that none
- * of them really do the same thing despite all appearing
- * to be "xterm".
- *
- * Also see
- * https://bugs.kde.org/show_bug.cgi?id=107487#c3 .
- * where it is assumed that supporting just the "indexed
- * mode" of these sequences (which could align easily
- * with existing SGR colors) is assumed to mean full
- * support of 24-bit RGB. So it is all or nothing.
- *
- * Finally, these sequences break the assumptions of
- * standard ECMA-48 style parsers as pointed out at
- * https://bugs.kde.org/show_bug.cgi?id=107487#c11 .
- * Therefore in order to keep a clean display, we cannot
- * parse anything else in this sequence.
- */
- sgrColorMode = 38;
- continue;
- } else {
- // Underscore on, default foreground color
- currentState.attr.setUnderline(true);
- currentState.attr.setForeColor(Color.WHITE);
- }
- break;
- case 39:
- // Underscore off, default foreground color
- currentState.attr.setUnderline(false);
- currentState.attr.setForeColor(Color.WHITE);
- currentState.attr.setForeColorRGB(-1);
- break;
- case 40:
- // Set black background
- currentState.attr.setBackColor(Color.BLACK);
- currentState.attr.setBackColorRGB(-1);
- break;
- case 41:
- // Set red background
- currentState.attr.setBackColor(Color.RED);
- currentState.attr.setBackColorRGB(-1);
- break;
- case 42:
- // Set green background
- currentState.attr.setBackColor(Color.GREEN);
- currentState.attr.setBackColorRGB(-1);
- break;
- case 43:
- // Set yellow background
- currentState.attr.setBackColor(Color.YELLOW);
- currentState.attr.setBackColorRGB(-1);
- break;
- case 44:
- // Set blue background
- currentState.attr.setBackColor(Color.BLUE);
- currentState.attr.setBackColorRGB(-1);
- break;
- case 45:
- // Set magenta background
- currentState.attr.setBackColor(Color.MAGENTA);
- currentState.attr.setBackColorRGB(-1);
- break;
- case 46:
- // Set cyan background
- currentState.attr.setBackColor(Color.CYAN);
- currentState.attr.setBackColorRGB(-1);
- break;
- case 47:
- // Set white background
- currentState.attr.setBackColor(Color.WHITE);
- currentState.attr.setBackColorRGB(-1);
- break;
- case 48:
- if (type == DeviceType.XTERM) {
- /*
- * Xterm supports T.416 / ISO-8613-3 codes to select
- * either an indexed color or an RGB value. (It also
- * permits these ISO-8613-3 SGR sequences to be separated
- * by colons rather than semicolons.)
- *
- * We will support only the following:
- *
- * 1. Indexed color mode (88- or 256-color modes).
- *
- * 2. Direct RGB.
- *
- * These cover most of the use cases in the real world.
- *
- * HOWEVER, note that this is an awful broken "standard",
- * with no way to do it "right". See
- * http://invisible-island.net/ncurses/ncurses.faq.html#xterm_16MegaColors
- * for a detailed discussion of the current state of RGB
- * in various terminals, the point of which is that none
- * of them really do the same thing despite all appearing
- * to be "xterm".
- *
- * Also see
- * https://bugs.kde.org/show_bug.cgi?id=107487#c3 .
- * where it is assumed that supporting just the "indexed
- * mode" of these sequences (which could align easily
- * with existing SGR colors) is assumed to mean full
- * support of 24-bit RGB. So it is all or nothing.
- *
- * Finally, these sequences break the assumptions of
- * standard ECMA-48 style parsers as pointed out at
- * https://bugs.kde.org/show_bug.cgi?id=107487#c11 .
- * Therefore in order to keep a clean display, we cannot
- * parse anything else in this sequence.
- */
- sgrColorMode = 48;
- continue;
- }
- break;
- case 49:
- // Default background
- currentState.attr.setBackColor(Color.BLACK);
- currentState.attr.setBackColorRGB(-1);
- break;
-
- default:
- break;
- }
- }
- }
-
- /**
- * DA - Device attributes.
- */
- private void da() {
- int extendedFlag = 0;
- int i = 0;
- if (collectBuffer.length() > 0) {
- String args = collectBuffer.substring(1);
- if (collectBuffer.charAt(0) == '>') {
- extendedFlag = 1;
- if (collectBuffer.length() >= 2) {
- i = Integer.parseInt(args);
- }
- } else if (collectBuffer.charAt(0) == '=') {
- extendedFlag = 2;
- if (collectBuffer.length() >= 2) {
- i = Integer.parseInt(args);
- }
- } else {
- // Unknown code, bail out
- return;
- }
- }
-
- if ((i != 0) && (i != 1)) {
- return;
- }
-
- if ((extendedFlag == 0) && (i == 0)) {
- // Send string directly to remote side
- writeRemote(deviceTypeResponse());
- return;
- }
-
- if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) {
-
- if ((extendedFlag == 1) && (i == 0)) {
- /*
- * Request "What type of terminal are you, what is your
- * firmware version, and what hardware options do you have
- * installed?"
- *
- * Respond: "I am a VT220 (identification code of 1), my
- * firmware version is _____ (Pv), and I have _____ Po
- * options installed."
- *
- * (Same as xterm)
- *
- */
-
- if (s8c1t == true) {
- writeRemote("\u009b>1;10;0c");
- } else {
- writeRemote("\033[>1;10;0c");
- }
- }
- }
-
- // VT420 and up
- if ((extendedFlag == 2) && (i == 0)) {
-
- /*
- * Request "What is your unit ID?"
- *
- * Respond: "I was manufactured at site 00 and have a unique ID
- * number of 123."
- *
- */
- writeRemote("\033P!|00010203\033\\");
- }
- }
-
- /**
- * DECSTBM - Set top and bottom margins.
- */
- private void decstbm() {
- boolean decPrivateModeFlag = false;
-
- for (int i = 0; i < collectBuffer.length(); i++) {
- if (collectBuffer.charAt(i) == '?') {
- decPrivateModeFlag = true;
- break;
- }
- }
- if (decPrivateModeFlag) {
- // This could be restore DEC private mode values.
- // Ignore it.
- } else {
- // DECSTBM
- int top = getCsiParam(0, 1, 1, height) - 1;
- int bottom = getCsiParam(1, height, 1, height) - 1;
-
- if (top > bottom) {
- top = bottom;
- }
- scrollRegionTop = top;
- scrollRegionBottom = bottom;
-
- // Home cursor
- cursorPosition(0, 0);
- }
- }
-
- /**
- * DECREQTPARM - Request terminal parameters.
- */
- private void decreqtparm() {
- int i = getCsiParam(0, 0);
-
- if ((i != 0) && (i != 1)) {
- return;
- }
-
- String str = "";
-
- /*
- * Request terminal parameters.
- *
- * Respond with:
- *
- * Parity NONE, 8 bits, xmitspeed 38400, recvspeed 38400.
- * (CLoCk MULtiplier = 1, STP option flags = 0)
- *
- * (Same as xterm)
- */
- if (((type == DeviceType.VT220) || (type == DeviceType.XTERM))
- && (s8c1t == true)
- ) {
- str = String.format("\u009b%d;1;1;128;128;1;0x", i + 2);
- } else {
- str = String.format("\033[%d;1;1;128;128;1;0x", i + 2);
- }
- writeRemote(str);
- }
-
- /**
- * DECSCA - Select Character Attributes.
- */
- private void decsca() {
- int i = getCsiParam(0, 0);
-
- if ((i == 0) || (i == 2)) {
- // Protect mode OFF
- currentState.attr.setProtect(false);
- }
- if (i == 1) {
- // Protect mode ON
- currentState.attr.setProtect(true);
- }
- }
-
- /**
- * DECSTR - Soft Terminal Reset.
- */
- private void decstr() {
- // Do exactly like RIS - Reset to initial state
- reset();
- // Do I clear screen too? I think so...
- eraseScreen(0, 0, height - 1, width - 1, false);
- cursorPosition(0, 0);
- }
-
- /**
- * DSR - Device status report.
- */
- private void dsr() {
- boolean decPrivateModeFlag = false;
- int row = currentState.cursorY;
-
- for (int i = 0; i < collectBuffer.length(); i++) {
- if (collectBuffer.charAt(i) == '?') {
- decPrivateModeFlag = true;
- break;
- }
- }
-
- int i = getCsiParam(0, 0);
-
- switch (i) {
-
- case 5:
- // Request status report. Respond with "OK, no malfunction."
-
- // Send string directly to remote side
- if (((type == DeviceType.VT220) || (type == DeviceType.XTERM))
- && (s8c1t == true)
- ) {
- writeRemote("\u009b0n");
- } else {
- writeRemote("\033[0n");
- }
- break;
-
- case 6:
- // Request cursor position. Respond with current position.
- if (currentState.originMode == true) {
- row -= scrollRegionTop;
- }
- String str = "";
- if (((type == DeviceType.VT220) || (type == DeviceType.XTERM))
- && (s8c1t == true)
- ) {
- str = String.format("\u009b%d;%dR", row + 1,
- currentState.cursorX + 1);
- } else {
- str = String.format("\033[%d;%dR", row + 1,
- currentState.cursorX + 1);
- }
-
- // Send string directly to remote side
- writeRemote(str);
- break;
-
- case 15:
- if (decPrivateModeFlag == true) {
-
- // Request printer status report. Respond with "Printer not
- // connected."
-
- if (((type == DeviceType.VT220) || (type == DeviceType.XTERM))
- && (s8c1t == true)) {
- writeRemote("\u009b?13n");
- } else {
- writeRemote("\033[?13n");
- }
- }
- break;
-
- case 25:
- if (((type == DeviceType.VT220) || (type == DeviceType.XTERM))
- && (decPrivateModeFlag == true)
- ) {
-
- // Request user-defined keys are locked or unlocked. Respond
- // with "User-defined keys are locked."
-
- if (s8c1t == true) {
- writeRemote("\u009b?21n");
- } else {
- writeRemote("\033[?21n");
- }
- }
- break;
-
- case 26:
- if (((type == DeviceType.VT220) || (type == DeviceType.XTERM))
- && (decPrivateModeFlag == true)
- ) {
-
- // Request keyboard language. Respond with "Keyboard
- // language is North American."
-
- if (s8c1t == true) {
- writeRemote("\u009b?27;1n");
- } else {
- writeRemote("\033[?27;1n");
- }
-
- }
- break;
-
- default:
- // Some other option, ignore
- break;
- }
- }
-
- /**
- * TBC - Tabulation clear.
- */
- private void tbc() {
- int i = getCsiParam(0, 0);
- if (i == 0) {
- List<Integer> newStops = new ArrayList<Integer>();
- for (Integer stop: tabStops) {
- if (stop == currentState.cursorX) {
- continue;
- }
- newStops.add(stop);
- }
- tabStops = newStops;
- }
- if (i == 3) {
- tabStops.clear();
- }
- }
-
- /**
- * Erase the characters in the current line from the start column to the
- * end column, inclusive.
- *
- * @param start starting column to erase (between 0 and width - 1)
- * @param end ending column to erase (between 0 and width - 1)
- * @param honorProtected if true, do not erase characters with the
- * protected attribute set
- */
- private void eraseLine(int start, int end, final boolean honorProtected) {
-
- if (start > end) {
- return;
- }
- if (end > width - 1) {
- end = width - 1;
- }
- if (start < 0) {
- start = 0;
- }
-
- for (int i = start; i <= end; i++) {
- DisplayLine line = display.get(currentState.cursorY);
- if ((!honorProtected)
- || ((honorProtected) && (!line.charAt(i).isProtect()))) {
-
- switch (type) {
- case VT100:
- case VT102:
- case VT220:
- /*
- * From the VT102 manual:
- *
- * Erasing a character also erases any character
- * attribute of the character.
- */
- line.setBlank(i);
- break;
- case XTERM:
- /*
- * Erase with the current color a.k.a. back-color erase
- * (bce).
- */
- line.setChar(i, ' ');
- line.setAttr(i, currentState.attr);
- break;
- }
- }
- }
- }
-
- /**
- * Erase a rectangular section of the screen, inclusive. end column,
- * inclusive.
- *
- * @param startRow starting row to erase (between 0 and height - 1)
- * @param startCol starting column to erase (between 0 and width - 1)
- * @param endRow ending row to erase (between 0 and height - 1)
- * @param endCol ending column to erase (between 0 and width - 1)
- * @param honorProtected if true, do not erase characters with the
- * protected attribute set
- */
- private void eraseScreen(final int startRow, final int startCol,
- final int endRow, final int endCol, final boolean honorProtected) {
-
- int oldCursorY;
-
- if ((startRow < 0)
- || (startCol < 0)
- || (endRow < 0)
- || (endCol < 0)
- || (endRow < startRow)
- || (endCol < startCol)
- ) {
- return;
- }
-
- oldCursorY = currentState.cursorY;
- for (int i = startRow; i <= endRow; i++) {
- currentState.cursorY = i;
- eraseLine(startCol, endCol, honorProtected);
-
- // Erase display clears the double attributes
- display.get(i).setDoubleWidth(false);
- display.get(i).setDoubleHeight(0);
- }
- currentState.cursorY = oldCursorY;
- }
-
- /**
- * VT220 printer functions. All of these are parsed, but won't do
- * anything.
- */
- private void printerFunctions() {
- boolean decPrivateModeFlag = false;
- for (int i = 0; i < collectBuffer.length(); i++) {
- if (collectBuffer.charAt(i) == '?') {
- decPrivateModeFlag = true;
- break;
- }
- }
-
- int i = getCsiParam(0, 0);
-
- switch (i) {
-
- case 0:
- if (decPrivateModeFlag == false) {
- // Print screen
- }
- break;
-
- case 1:
- if (decPrivateModeFlag == true) {
- // Print cursor line
- }
- break;
-
- case 4:
- if (decPrivateModeFlag == true) {
- // Auto print mode OFF
- } else {
- // Printer controller OFF
-
- // Characters re-appear on the screen
- printerControllerMode = false;
- }
- break;
-
- case 5:
- if (decPrivateModeFlag == true) {
- // Auto print mode
-
- } else {
- // Printer controller
-
- // Characters get sucked into oblivion
- printerControllerMode = true;
- }
- break;
-
- default:
- break;
-
- }
- }
-
- /**
- * Handle the SCAN_OSC_STRING state. Handle this in VT100 because lots
- * of remote systems will send an XTerm title sequence even if TERM isn't
- * xterm.
- *
- * @param xtermChar the character received from the remote side
- */
- private void oscPut(final char xtermChar) {
- // System.err.println("oscPut: " + xtermChar);
-
- // Collect first
- collectBuffer.append(xtermChar);
-
- // Xterm cases...
- if ((xtermChar == 0x07)
- || (collectBuffer.toString().endsWith("\033\\"))
- ) {
- String args = null;
- if (xtermChar == 0x07) {
- args = collectBuffer.substring(0, collectBuffer.length() - 1);
- } else {
- args = collectBuffer.substring(0, collectBuffer.length() - 2);
- }
-
- String [] p = args.split(";");
- if (p.length > 0) {
- if ((p[0].equals("0")) || (p[0].equals("2"))) {
- if (p.length > 1) {
- // Screen title
- screenTitle = p[1];
- }
- }
-
- if (p[0].equals("4")) {
- for (int i = 1; i + 1 < p.length; i += 2) {
- // Set a color index value
- try {
- set88Color(Integer.parseInt(p[i]), p[i + 1]);
- } catch (NumberFormatException e) {
- // SQUASH
- }
- }
- }
-
- if (p[0].equals("10")) {
- if (p[1].equals("?")) {
- // Respond with foreground color.
- java.awt.Color color = jexer.backend.SwingTerminal.attrToForegroundColor(currentState.attr);
-
- writeRemote(String.format(
- "\033]10;rgb:%04x/%04x/%04x\033\\",
- color.getRed() << 8,
- color.getGreen() << 8,
- color.getBlue() << 8));
- }
- }
-
- if (p[0].equals("11")) {
- if (p[1].equals("?")) {
- // Respond with background color.
- java.awt.Color color = jexer.backend.SwingTerminal.attrToBackgroundColor(currentState.attr);
-
- writeRemote(String.format(
- "\033]11;rgb:%04x/%04x/%04x\033\\",
- color.getRed() << 8,
- color.getGreen() << 8,
- color.getBlue() << 8));
- }
- }
-
- if (p[0].equals("444") && (p.length == 5)) {
- // Jexer image
- parseJexerImage(p[1], p[2], p[3], p[4]);
- }
-
- }
-
- // Go to SCAN_GROUND state
- toGround();
- return;
- }
- }
-
- /**
- * Handle the SCAN_SOSPMAPC_STRING state. This is currently only used by
- * Jexer ECMA48Terminal to talk to ECMA48.
- *
- * @param pmChar the character received from the remote side
- */
- private void pmPut(final char pmChar) {
- // System.err.println("pmPut: " + pmChar);
-
- // Collect first
- collectBuffer.append(pmChar);
-
- // Xterm cases...
- if (collectBuffer.toString().endsWith("\033\\")) {
- String arg = null;
- arg = collectBuffer.substring(0, collectBuffer.length() - 2);
-
- // System.err.println("arg: '" + arg + "'");
-
- if (arg.equals("hideMousePointer")) {
- hideMousePointer = true;
- }
- if (arg.equals("showMousePointer")) {
- hideMousePointer = false;
- }
-
- // Go to SCAN_GROUND state
- toGround();
- return;
- }
- }
-
- /**
- * Perform xterm window operations.
- */
- private void xtermWindowOps() {
- boolean xtermPrivateModeFlag = false;
-
- for (int i = 0; i < collectBuffer.length(); i++) {
- if (collectBuffer.charAt(i) == '?') {
- xtermPrivateModeFlag = true;
- break;
- }
- }
-
- int i = getCsiParam(0, 0);
-
- if (!xtermPrivateModeFlag) {
- switch (i) {
- case 14:
- // Report xterm text area size in pixels as CSI 4 ; height ;
- // width t
- writeRemote(String.format("\033[4;%d;%dt", textHeight * height,
- textWidth * width));
- break;
- case 16:
- // Report character size in pixels as CSI 6 ; height ; width
- // t
- writeRemote(String.format("\033[6;%d;%dt", textHeight,
- textWidth));
- break;
- case 18:
- // Report the text are size in characters as CSI 8 ; height ;
- // width t
- writeRemote(String.format("\033[8;%d;%dt", height, width));
- break;
- default:
- break;
- }
- }
- }
-
- /**
- * Respond to xterm sixel query.
- */
- private void xtermSixelQuery() {
- int item = getCsiParam(0, 0);
- int action = getCsiParam(1, 0);
- int value = getCsiParam(2, 0);
-
- switch (item) {
- case 1:
- if (action == 1) {
- // Report number of color registers.
- writeRemote(String.format("\033[?%d;%d;%dS", item, 0, 1024));
- return;
- }
- break;
- default:
- break;
- }
- // We will not support this option.
- writeRemote(String.format("\033[?%d;%dS", item, action));
- }
-
- /**
- * Run this input character through the ECMA48 state machine.
- *
- * @param ch character from the remote side
- */
- private void consume(int ch) {
-
- // DEBUG
- // System.err.printf("%c STATE = %s\n", ch, scanState);
-
- // Special case for VT10x: 7-bit characters only
- if ((type == DeviceType.VT100) || (type == DeviceType.VT102)) {
- ch = (ch & 0x7F);
- }
-
- // Special "anywhere" states
-
- // 18, 1A --> execute, then switch to SCAN_GROUND
- if ((ch == 0x18) || (ch == 0x1A)) {
- // CAN and SUB abort escape sequences
- toGround();
- return;
- }
-
- // 80-8F, 91-97, 99, 9A, 9C --> execute, then switch to SCAN_GROUND
-
- // 0x1B == ESCAPE
- if (ch == 0x1B) {
- if ((type == DeviceType.XTERM)
- && ((scanState == ScanState.OSC_STRING)
- || (scanState == ScanState.DCS_SIXEL)
- || (scanState == ScanState.SOSPMAPC_STRING))
- ) {
- // Xterm can pass ESCAPE to its OSC sequence.
- // Xterm can pass ESCAPE to its DCS sequence.
- // Jexer can pass ESCAPE to its PM sequence.
- } else if ((scanState != ScanState.DCS_ENTRY)
- && (scanState != ScanState.DCS_INTERMEDIATE)
- && (scanState != ScanState.DCS_IGNORE)
- && (scanState != ScanState.DCS_PARAM)
- && (scanState != ScanState.DCS_PASSTHROUGH)
- ) {
- scanState = ScanState.ESCAPE;
- return;
- }
- }
-
- // 0x9B == CSI 8-bit sequence
- if (ch == 0x9B) {
- scanState = ScanState.CSI_ENTRY;
- return;
- }
-
- // 0x9D goes to ScanState.OSC_STRING
- if (ch == 0x9D) {
- scanState = ScanState.OSC_STRING;
- return;
- }
-
- // 0x90 goes to DCS_ENTRY
- if (ch == 0x90) {
- scanState = ScanState.DCS_ENTRY;
- return;
- }
-
- // 0x98, 0x9E, and 0x9F go to SOSPMAPC_STRING
- if ((ch == 0x98) || (ch == 0x9E) || (ch == 0x9F)) {
- scanState = ScanState.SOSPMAPC_STRING;
- return;
- }
-
- // 0x7F (DEL) is always discarded
- if (ch == 0x7F) {
- return;
- }
-
- switch (scanState) {
-
- case GROUND:
- // 00-17, 19, 1C-1F --> execute
- // 80-8F, 91-9A, 9C --> execute
- if ((ch <= 0x1F) || ((ch >= 0x80) && (ch <= 0x9F))) {
- handleControlChar((char) ch);
- }
-
- // 20-7F --> print
- if (((ch >= 0x20) && (ch <= 0x7F))
- || (ch >= 0xA0)
- ) {
-
- // VT220 printer --> trash bin
- if (((type == DeviceType.VT220)
- || (type == DeviceType.XTERM))
- && (printerControllerMode == true)
- ) {
- return;
- }
-
- // Hang onto this character
- repCh = mapCharacter(ch);
-
- // Print this character
- printCharacter(repCh);
- }
- return;
-
- case ESCAPE:
- // 00-17, 19, 1C-1F --> execute
- if (ch <= 0x1F) {
- handleControlChar((char) ch);
- return;
- }
-
- // 20-2F --> collect, then switch to ESCAPE_INTERMEDIATE
- if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect((char) ch);
- scanState = ScanState.ESCAPE_INTERMEDIATE;
- return;
- }
-
- // 30-4F, 51-57, 59, 5A, 5C, 60-7E --> dispatch, then switch to GROUND
- if ((ch >= 0x30) && (ch <= 0x4F)) {
- switch (ch) {
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- break;
- case '7':
- // DECSC - Save cursor
- // Note this code overlaps both ANSI and VT52 mode
- decsc();
- break;
-
- case '8':
- // DECRC - Restore cursor
- // Note this code overlaps both ANSI and VT52 mode
- decrc();
- break;
-
- case '9':
- case ':':
- case ';':
- break;
- case '<':
- if (vt52Mode == true) {
- // DECANM - Enter ANSI mode
- vt52Mode = false;
- arrowKeyMode = ArrowKeyMode.VT100;
-
- /*
- * From the VT102 docs: "You use ANSI mode to select
- * most terminal features; the terminal uses the same
- * features when it switches to VT52 mode. You
- * cannot, however, change most of these features in
- * VT52 mode."
- *
- * In other words, do not reset any other attributes
- * when switching between VT52 submode and ANSI.
- */
-
- // Reset fonts
- currentState.g0Charset = CharacterSet.US;
- currentState.g1Charset = CharacterSet.DRAWING;
- s8c1t = false;
- singleshift = Singleshift.NONE;
- currentState.glLockshift = LockshiftMode.NONE;
- currentState.grLockshift = LockshiftMode.NONE;
- }
- break;
- case '=':
- // DECKPAM - Keypad application mode
- // Note this code overlaps both ANSI and VT52 mode
- deckpam();
- break;
- case '>':
- // DECKPNM - Keypad numeric mode
- // Note this code overlaps both ANSI and VT52 mode
- deckpnm();
- break;
- case '?':
- case '@':
- break;
- case 'A':
- if (vt52Mode == true) {
- // Cursor up, and stop at the top without scrolling
- cursorUp(1, false);
- }
- break;
- case 'B':
- if (vt52Mode == true) {
- // Cursor down, and stop at the bottom without scrolling
- cursorDown(1, false);
- }
- break;
- case 'C':
- if (vt52Mode == true) {
- // Cursor right, and stop at the right without scrolling
- cursorRight(1, false);
- }
- break;
- case 'D':
- if (vt52Mode == true) {
- // Cursor left, and stop at the left without scrolling
- cursorLeft(1, false);
- } else {
- // IND - Index
- ind();
- }
- break;
- case 'E':
- if (vt52Mode == true) {
- // Nothing
- } else {
- // NEL - Next line
- nel();
- }
- break;
- case 'F':
- if (vt52Mode == true) {
- // G0 --> Special graphics
- currentState.g0Charset = CharacterSet.VT52_GRAPHICS;
- }
- break;
- case 'G':
- if (vt52Mode == true) {
- // G0 --> ASCII set
- currentState.g0Charset = CharacterSet.US;
- }
- break;
- case 'H':
- if (vt52Mode == true) {
- // Cursor to home
- cursorPosition(0, 0);
- } else {
- // HTS - Horizontal tabulation set
- hts();
- }
- break;
- case 'I':
- if (vt52Mode == true) {
- // Reverse line feed. Same as RI.
- ri();
- }
- break;
- case 'J':
- if (vt52Mode == true) {
- // Erase to end of screen
- eraseLine(currentState.cursorX, width - 1, false);
- eraseScreen(currentState.cursorY + 1, 0, height - 1,
- width - 1, false);
- }
- break;
- case 'K':
- if (vt52Mode == true) {
- // Erase to end of line
- eraseLine(currentState.cursorX, width - 1, false);
- }
- break;
- case 'L':
- break;
- case 'M':
- if (vt52Mode == true) {
- // Nothing
- } else {
- // RI - Reverse index
- ri();
- }
- break;
- case 'N':
- if (vt52Mode == false) {
- // SS2
- singleshift = Singleshift.SS2;
- }
- break;
- case 'O':
- if (vt52Mode == false) {
- // SS3
- singleshift = Singleshift.SS3;
- }
- break;
- }
- toGround();
- return;
- }
- if ((ch >= 0x51) && (ch <= 0x57)) {
- switch (ch) {
- case 'Q':
- case 'R':
- case 'S':
- case 'T':
- case 'U':
- case 'V':
- case 'W':
- break;
- }
- toGround();
- return;
- }
- if (ch == 0x59) {
- // 'Y'
- if (vt52Mode == true) {
- scanState = ScanState.VT52_DIRECT_CURSOR_ADDRESS;
- } else {
- toGround();
- }
- return;
- }
- if (ch == 0x5A) {
- // 'Z'
- if (vt52Mode == true) {
- // Identify
- // Send string directly to remote side
- writeRemote("\033/Z");
- } else {
- // DECID
- // Send string directly to remote side
- writeRemote(deviceTypeResponse());
- }
- toGround();
- return;
- }
- if (ch == 0x5C) {
- // '\'
- toGround();
- return;
- }
-
- // VT52 cannot get to any of these other states
- if (vt52Mode == true) {
- toGround();
- return;
- }
-
- if ((ch >= 0x60) && (ch <= 0x7E)) {
- switch (ch) {
- case '`':
- case 'a':
- case 'b':
- break;
- case 'c':
- // RIS - Reset to initial state
- reset();
- // Do I clear screen too? I think so...
- eraseScreen(0, 0, height - 1, width - 1, false);
- cursorPosition(0, 0);
- break;
- case 'd':
- case 'e':
- case 'f':
- case 'g':
- case 'h':
- case 'i':
- case 'j':
- case 'k':
- case 'l':
- case 'm':
- break;
- case 'n':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- // VT220 lockshift G2 into GL
- currentState.glLockshift = LockshiftMode.G2_GL;
- shiftOut = false;
- }
- break;
- case 'o':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- // VT220 lockshift G3 into GL
- currentState.glLockshift = LockshiftMode.G3_GL;
- shiftOut = false;
- }
- break;
- case 'p':
- case 'q':
- case 'r':
- case 's':
- case 't':
- case 'u':
- case 'v':
- case 'w':
- case 'x':
- case 'y':
- case 'z':
- case '{':
- break;
- case '|':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- // VT220 lockshift G3 into GR
- currentState.grLockshift = LockshiftMode.G3_GR;
- shiftOut = false;
- }
- break;
- case '}':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- // VT220 lockshift G2 into GR
- currentState.grLockshift = LockshiftMode.G2_GR;
- shiftOut = false;
- }
- break;
-
- case '~':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- // VT220 lockshift G1 into GR
- currentState.grLockshift = LockshiftMode.G1_GR;
- shiftOut = false;
- }
- break;
- }
- toGround();
- }
-
- // 7F --> ignore
-
- // 0x5B goes to CSI_ENTRY
- if (ch == 0x5B) {
- scanState = ScanState.CSI_ENTRY;
- }
-
- // 0x5D goes to OSC_STRING
- if (ch == 0x5D) {
- scanState = ScanState.OSC_STRING;
- }
-
- // 0x50 goes to DCS_ENTRY
- if (ch == 0x50) {
- scanState = ScanState.DCS_ENTRY;
- }
-
- // 0x58, 0x5E, and 0x5F go to SOSPMAPC_STRING
- if ((ch == 0x58) || (ch == 0x5E) || (ch == 0x5F)) {
- scanState = ScanState.SOSPMAPC_STRING;
- }
-
- return;
-
- case ESCAPE_INTERMEDIATE:
- // 00-17, 19, 1C-1F --> execute
- if (ch <= 0x1F) {
- handleControlChar((char) ch);
- }
-
- // 20-2F --> collect
- if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect((char) ch);
- }
-
- // 30-7E --> dispatch, then switch to GROUND
- if ((ch >= 0x30) && (ch <= 0x7E)) {
- switch (ch) {
- case '0':
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> Special graphics
- currentState.g0Charset = CharacterSet.DRAWING;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> Special graphics
- currentState.g1Charset = CharacterSet.DRAWING;
- }
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> Special graphics
- currentState.g2Charset = CharacterSet.DRAWING;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> Special graphics
- currentState.g3Charset = CharacterSet.DRAWING;
- }
- }
- break;
- case '1':
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> Alternate character ROM standard character set
- currentState.g0Charset = CharacterSet.ROM;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> Alternate character ROM standard character set
- currentState.g1Charset = CharacterSet.ROM;
- }
- break;
- case '2':
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> Alternate character ROM special graphics
- currentState.g0Charset = CharacterSet.ROM_SPECIAL;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> Alternate character ROM special graphics
- currentState.g1Charset = CharacterSet.ROM_SPECIAL;
- }
- break;
- case '3':
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '#')) {
- // DECDHL - Double-height line (top half)
- dechdl(true);
- }
- break;
- case '4':
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '#')) {
- // DECDHL - Double-height line (bottom half)
- dechdl(false);
- }
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> DUTCH
- currentState.g0Charset = CharacterSet.NRC_DUTCH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> DUTCH
- currentState.g1Charset = CharacterSet.NRC_DUTCH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> DUTCH
- currentState.g2Charset = CharacterSet.NRC_DUTCH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> DUTCH
- currentState.g3Charset = CharacterSet.NRC_DUTCH;
- }
- }
- break;
- case '5':
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '#')) {
- // DECSWL - Single-width line
- decswl();
- }
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> FINNISH
- currentState.g0Charset = CharacterSet.NRC_FINNISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> FINNISH
- currentState.g1Charset = CharacterSet.NRC_FINNISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> FINNISH
- currentState.g2Charset = CharacterSet.NRC_FINNISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> FINNISH
- currentState.g3Charset = CharacterSet.NRC_FINNISH;
- }
- }
- break;
- case '6':
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '#')) {
- // DECDWL - Double-width line
- decdwl();
- }
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> NORWEGIAN
- currentState.g0Charset = CharacterSet.NRC_NORWEGIAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> NORWEGIAN
- currentState.g1Charset = CharacterSet.NRC_NORWEGIAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> NORWEGIAN
- currentState.g2Charset = CharacterSet.NRC_NORWEGIAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> NORWEGIAN
- currentState.g3Charset = CharacterSet.NRC_NORWEGIAN;
- }
- }
- break;
- case '7':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> SWEDISH
- currentState.g0Charset = CharacterSet.NRC_SWEDISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> SWEDISH
- currentState.g1Charset = CharacterSet.NRC_SWEDISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> SWEDISH
- currentState.g2Charset = CharacterSet.NRC_SWEDISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> SWEDISH
- currentState.g3Charset = CharacterSet.NRC_SWEDISH;
- }
- }
- break;
- case '8':
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '#')) {
- // DECALN - Screen alignment display
- decaln();
- }
- break;
- case '9':
- case ':':
- case ';':
- break;
- case '<':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> DEC_SUPPLEMENTAL
- currentState.g0Charset = CharacterSet.DEC_SUPPLEMENTAL;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> DEC_SUPPLEMENTAL
- currentState.g1Charset = CharacterSet.DEC_SUPPLEMENTAL;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> DEC_SUPPLEMENTAL
- currentState.g2Charset = CharacterSet.DEC_SUPPLEMENTAL;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> DEC_SUPPLEMENTAL
- currentState.g3Charset = CharacterSet.DEC_SUPPLEMENTAL;
- }
- }
- break;
- case '=':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> SWISS
- currentState.g0Charset = CharacterSet.NRC_SWISS;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> SWISS
- currentState.g1Charset = CharacterSet.NRC_SWISS;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> SWISS
- currentState.g2Charset = CharacterSet.NRC_SWISS;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> SWISS
- currentState.g3Charset = CharacterSet.NRC_SWISS;
- }
- }
- break;
- case '>':
- case '?':
- case '@':
- break;
- case 'A':
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> United Kingdom set
- currentState.g0Charset = CharacterSet.UK;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> United Kingdom set
- currentState.g1Charset = CharacterSet.UK;
- }
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> United Kingdom set
- currentState.g2Charset = CharacterSet.UK;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> United Kingdom set
- currentState.g3Charset = CharacterSet.UK;
- }
- }
- break;
- case 'B':
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> ASCII set
- currentState.g0Charset = CharacterSet.US;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> ASCII set
- currentState.g1Charset = CharacterSet.US;
- }
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> ASCII
- currentState.g2Charset = CharacterSet.US;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> ASCII
- currentState.g3Charset = CharacterSet.US;
- }
- }
- break;
- case 'C':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> FINNISH
- currentState.g0Charset = CharacterSet.NRC_FINNISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> FINNISH
- currentState.g1Charset = CharacterSet.NRC_FINNISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> FINNISH
- currentState.g2Charset = CharacterSet.NRC_FINNISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> FINNISH
- currentState.g3Charset = CharacterSet.NRC_FINNISH;
- }
- }
- break;
- case 'D':
- break;
- case 'E':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> NORWEGIAN
- currentState.g0Charset = CharacterSet.NRC_NORWEGIAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> NORWEGIAN
- currentState.g1Charset = CharacterSet.NRC_NORWEGIAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> NORWEGIAN
- currentState.g2Charset = CharacterSet.NRC_NORWEGIAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> NORWEGIAN
- currentState.g3Charset = CharacterSet.NRC_NORWEGIAN;
- }
- }
- break;
- case 'F':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ' ')) {
- // S7C1T
- s8c1t = false;
- }
- }
- break;
- case 'G':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ' ')) {
- // S8C1T
- s8c1t = true;
- }
- }
- break;
- case 'H':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> SWEDISH
- currentState.g0Charset = CharacterSet.NRC_SWEDISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> SWEDISH
- currentState.g1Charset = CharacterSet.NRC_SWEDISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> SWEDISH
- currentState.g2Charset = CharacterSet.NRC_SWEDISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> SWEDISH
- currentState.g3Charset = CharacterSet.NRC_SWEDISH;
- }
- }
- break;
- case 'I':
- case 'J':
- break;
- case 'K':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> GERMAN
- currentState.g0Charset = CharacterSet.NRC_GERMAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> GERMAN
- currentState.g1Charset = CharacterSet.NRC_GERMAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> GERMAN
- currentState.g2Charset = CharacterSet.NRC_GERMAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> GERMAN
- currentState.g3Charset = CharacterSet.NRC_GERMAN;
- }
- }
- break;
- case 'L':
- case 'M':
- case 'N':
- case 'O':
- case 'P':
- break;
- case 'Q':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> FRENCH_CA
- currentState.g0Charset = CharacterSet.NRC_FRENCH_CA;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> FRENCH_CA
- currentState.g1Charset = CharacterSet.NRC_FRENCH_CA;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> FRENCH_CA
- currentState.g2Charset = CharacterSet.NRC_FRENCH_CA;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> FRENCH_CA
- currentState.g3Charset = CharacterSet.NRC_FRENCH_CA;
- }
- }
- break;
- case 'R':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> FRENCH
- currentState.g0Charset = CharacterSet.NRC_FRENCH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> FRENCH
- currentState.g1Charset = CharacterSet.NRC_FRENCH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> FRENCH
- currentState.g2Charset = CharacterSet.NRC_FRENCH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> FRENCH
- currentState.g3Charset = CharacterSet.NRC_FRENCH;
- }
- }
- break;
- case 'S':
- case 'T':
- case 'U':
- case 'V':
- case 'W':
- case 'X':
- break;
- case 'Y':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> ITALIAN
- currentState.g0Charset = CharacterSet.NRC_ITALIAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> ITALIAN
- currentState.g1Charset = CharacterSet.NRC_ITALIAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> ITALIAN
- currentState.g2Charset = CharacterSet.NRC_ITALIAN;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> ITALIAN
- currentState.g3Charset = CharacterSet.NRC_ITALIAN;
- }
- }
- break;
- case 'Z':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '(')) {
- // G0 --> SPANISH
- currentState.g0Charset = CharacterSet.NRC_SPANISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == ')')) {
- // G1 --> SPANISH
- currentState.g1Charset = CharacterSet.NRC_SPANISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '*')) {
- // G2 --> SPANISH
- currentState.g2Charset = CharacterSet.NRC_SPANISH;
- }
- if ((collectBuffer.length() == 1)
- && (collectBuffer.charAt(0) == '+')) {
- // G3 --> SPANISH
- currentState.g3Charset = CharacterSet.NRC_SPANISH;
- }
- }
- break;
- case '[':
- case '\\':
- case ']':
- case '^':
- case '_':
- case '`':
- case 'a':
- case 'b':
- case 'c':
- case 'd':
- case 'e':
- case 'f':
- case 'g':
- case 'h':
- case 'i':
- case 'j':
- case 'k':
- case 'l':
- case 'm':
- case 'n':
- case 'o':
- case 'p':
- case 'q':
- case 'r':
- case 's':
- case 't':
- case 'u':
- case 'v':
- case 'w':
- case 'x':
- case 'y':
- case 'z':
- case '{':
- case '|':
- case '}':
- case '~':
- break;
- }
- toGround();
- }
-
- // 7F --> ignore
-
- // 0x9C goes to GROUND
- if (ch == 0x9C) {
- toGround();
- }
-
- return;
-
- case CSI_ENTRY:
- // 00-17, 19, 1C-1F --> execute
- if (ch <= 0x1F) {
- handleControlChar((char) ch);
- }
-
- // 20-2F --> collect, then switch to CSI_INTERMEDIATE
- if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect((char) ch);
- scanState = ScanState.CSI_INTERMEDIATE;
- }
-
- // 30-39, 3B --> param, then switch to CSI_PARAM
- if ((ch >= '0') && (ch <= '9')) {
- param((byte) ch);
- scanState = ScanState.CSI_PARAM;
- }
- if (ch == ';') {
- param((byte) ch);
- scanState = ScanState.CSI_PARAM;
- }
-
- // 3C-3F --> collect, then switch to CSI_PARAM
- if ((ch >= 0x3C) && (ch <= 0x3F)) {
- collect((char) ch);
- scanState = ScanState.CSI_PARAM;
- }
-
- // 40-7E --> dispatch, then switch to GROUND
- if ((ch >= 0x40) && (ch <= 0x7E)) {
- switch (ch) {
- case '@':
- // ICH - Insert character
- ich();
- break;
- case 'A':
- // CUU - Cursor up
- cuu();
- break;
- case 'B':
- // CUD - Cursor down
- cud();
- break;
- case 'C':
- // CUF - Cursor forward
- cuf();
- break;
- case 'D':
- // CUB - Cursor backward
- cub();
- break;
- case 'E':
- // CNL - Cursor down and to column 1
- if (type == DeviceType.XTERM) {
- cnl();
- }
- break;
- case 'F':
- // CPL - Cursor up and to column 1
- if (type == DeviceType.XTERM) {
- cpl();
- }
- break;
- case 'G':
- // CHA - Cursor to column # in current row
- if (type == DeviceType.XTERM) {
- cha();
- }
- break;
- case 'H':
- // CUP - Cursor position
- cup();
- break;
- case 'I':
- // CHT - Cursor forward X tab stops (default 1)
- if (type == DeviceType.XTERM) {
- cht();
- }
- break;
- case 'J':
- // ED - Erase in display
- ed();
- break;
- case 'K':
- // EL - Erase in line
- el();
- break;
- case 'L':
- // IL - Insert line
- il();
- break;
- case 'M':
- // DL - Delete line
- dl();
- break;
- case 'N':
- case 'O':
- break;
- case 'P':
- // DCH - Delete character
- dch();
- break;
- case 'Q':
- case 'R':
- break;
- case 'S':
- // Scroll up X lines (default 1)
- if (type == DeviceType.XTERM) {
- boolean xtermPrivateModeFlag = false;
- for (int i = 0; i < collectBuffer.length(); i++) {
- if (collectBuffer.charAt(i) == '?') {
- xtermPrivateModeFlag = true;
- break;
- }
- }
- if (xtermPrivateModeFlag) {
- xtermSixelQuery();
- } else {
- su();
- }
- }
- break;
- case 'T':
- // Scroll down X lines (default 1)
- if (type == DeviceType.XTERM) {
- sd();
- }
- break;
- case 'U':
- case 'V':
- case 'W':
- break;
- case 'X':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- // ECH - Erase character
- ech();
- }
- break;
- case 'Y':
- break;
- case 'Z':
- // CBT - Cursor backward X tab stops (default 1)
- if (type == DeviceType.XTERM) {
- cbt();
- }
- break;
- case '[':
- case '\\':
- case ']':
- case '^':
- case '_':
- break;
- case '`':
- // HPA - Cursor to column # in current row. Same as CHA
- if (type == DeviceType.XTERM) {
- cha();
- }
- break;
- case 'a':
- // HPR - Cursor right. Same as CUF
- if (type == DeviceType.XTERM) {
- cuf();
- }
- break;
- case 'b':
- // REP - Repeat last char X times
- if (type == DeviceType.XTERM) {
- rep();
- }
- break;
- case 'c':
- // DA - Device attributes
- da();
- break;
- case 'd':
- // VPA - Cursor to row, current column.
- if (type == DeviceType.XTERM) {
- vpa();
- }
- break;
- case 'e':
- // VPR - Cursor down. Same as CUD
- if (type == DeviceType.XTERM) {
- cud();
- }
- break;
- case 'f':
- // HVP - Horizontal and vertical position
- hvp();
- break;
- case 'g':
- // TBC - Tabulation clear
- tbc();
- break;
- case 'h':
- // Sets an ANSI or DEC private toggle
- setToggle(true);
- break;
- case 'i':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- // Printer functions
- printerFunctions();
- }
- break;
- case 'j':
- case 'k':
- break;
- case 'l':
- // Sets an ANSI or DEC private toggle
- setToggle(false);
- break;
- case 'm':
- // SGR - Select graphics rendition
- sgr();
- break;
- case 'n':
- // DSR - Device status report
- dsr();
- break;
- case 'o':
- case 'p':
- break;
- case 'q':
- // DECLL - Load leds
- // Not supported
- break;
- case 'r':
- // DECSTBM - Set top and bottom margins
- decstbm();
- break;
- case 's':
- // Save cursor (ANSI.SYS)
- if (type == DeviceType.XTERM) {
- savedState.cursorX = currentState.cursorX;
- savedState.cursorY = currentState.cursorY;
- }
- break;
- case 't':
- if (type == DeviceType.XTERM) {
- // Window operations
- xtermWindowOps();
- }
- break;
- case 'u':
- // Restore cursor (ANSI.SYS)
- if (type == DeviceType.XTERM) {
- cursorPosition(savedState.cursorY, savedState.cursorX);
- }
- break;
- case 'v':
- case 'w':
- break;
- case 'x':
- // DECREQTPARM - Request terminal parameters
- decreqtparm();
- break;
- case 'y':
- case 'z':
- case '{':
- case '|':
- case '}':
- case '~':
- break;
- }
- toGround();
- }
-
- // 7F --> ignore
-
- // 0x9C goes to GROUND
- if (ch == 0x9C) {
- toGround();
- }
-
- // 0x3A goes to CSI_IGNORE
- if (ch == 0x3A) {
- scanState = ScanState.CSI_IGNORE;
- }
- return;
-
- case CSI_PARAM:
- // 00-17, 19, 1C-1F --> execute
- if (ch <= 0x1F) {
- handleControlChar((char) ch);
- }
-
- // 20-2F --> collect, then switch to CSI_INTERMEDIATE
- if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect((char) ch);
- scanState = ScanState.CSI_INTERMEDIATE;
- }
-
- // 30-39, 3B --> param
- if ((ch >= '0') && (ch <= '9')) {
- param((byte) ch);
- }
- if (ch == ';') {
- param((byte) ch);
- }
-
- // 0x3A goes to CSI_IGNORE
- if (ch == 0x3A) {
- scanState = ScanState.CSI_IGNORE;
- }
- // 0x3C-3F goes to CSI_IGNORE
- if ((ch >= 0x3C) && (ch <= 0x3F)) {
- scanState = ScanState.CSI_IGNORE;
- }
-
- // 40-7E --> dispatch, then switch to GROUND
- if ((ch >= 0x40) && (ch <= 0x7E)) {
- switch (ch) {
- case '@':
- // ICH - Insert character
- ich();
- break;
- case 'A':
- // CUU - Cursor up
- cuu();
- break;
- case 'B':
- // CUD - Cursor down
- cud();
- break;
- case 'C':
- // CUF - Cursor forward
- cuf();
- break;
- case 'D':
- // CUB - Cursor backward
- cub();
- break;
- case 'E':
- // CNL - Cursor down and to column 1
- if (type == DeviceType.XTERM) {
- cnl();
- }
- break;
- case 'F':
- // CPL - Cursor up and to column 1
- if (type == DeviceType.XTERM) {
- cpl();
- }
- break;
- case 'G':
- // CHA - Cursor to column # in current row
- if (type == DeviceType.XTERM) {
- cha();
- }
- break;
- case 'H':
- // CUP - Cursor position
- cup();
- break;
- case 'I':
- // CHT - Cursor forward X tab stops (default 1)
- if (type == DeviceType.XTERM) {
- cht();
- }
- break;
- case 'J':
- // ED - Erase in display
- ed();
- break;
- case 'K':
- // EL - Erase in line
- el();
- break;
- case 'L':
- // IL - Insert line
- il();
- break;
- case 'M':
- // DL - Delete line
- dl();
- break;
- case 'N':
- case 'O':
- break;
- case 'P':
- // DCH - Delete character
- dch();
- break;
- case 'Q':
- case 'R':
- break;
- case 'S':
- // Scroll up X lines (default 1)
- if (type == DeviceType.XTERM) {
- boolean xtermPrivateModeFlag = false;
- for (int i = 0; i < collectBuffer.length(); i++) {
- if (collectBuffer.charAt(i) == '?') {
- xtermPrivateModeFlag = true;
- break;
- }
- }
- if (xtermPrivateModeFlag) {
- xtermSixelQuery();
- } else {
- su();
- }
- }
- break;
- case 'T':
- // Scroll down X lines (default 1)
- if (type == DeviceType.XTERM) {
- sd();
- }
- break;
- case 'U':
- case 'V':
- case 'W':
- break;
- case 'X':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- // ECH - Erase character
- ech();
- }
- break;
- case 'Y':
- break;
- case 'Z':
- // CBT - Cursor backward X tab stops (default 1)
- if (type == DeviceType.XTERM) {
- cbt();
- }
- break;
- case '[':
- case '\\':
- case ']':
- case '^':
- case '_':
- break;
- case '`':
- // HPA - Cursor to column # in current row. Same as CHA
- if (type == DeviceType.XTERM) {
- cha();
- }
- break;
- case 'a':
- // HPR - Cursor right. Same as CUF
- if (type == DeviceType.XTERM) {
- cuf();
- }
- break;
- case 'b':
- // REP - Repeat last char X times
- if (type == DeviceType.XTERM) {
- rep();
- }
- break;
- case 'c':
- // DA - Device attributes
- da();
- break;
- case 'd':
- // VPA - Cursor to row, current column.
- if (type == DeviceType.XTERM) {
- vpa();
- }
- break;
- case 'e':
- // VPR - Cursor down. Same as CUD
- if (type == DeviceType.XTERM) {
- cud();
- }
- break;
- case 'f':
- // HVP - Horizontal and vertical position
- hvp();
- break;
- case 'g':
- // TBC - Tabulation clear
- tbc();
- break;
- case 'h':
- // Sets an ANSI or DEC private toggle
- setToggle(true);
- break;
- case 'i':
- if ((type == DeviceType.VT220)
- || (type == DeviceType.XTERM)) {
-
- // Printer functions
- printerFunctions();
- }
- break;
- case 'j':
- case 'k':
- break;
- case 'l':
- // Sets an ANSI or DEC private toggle
- setToggle(false);
- break;
- case 'm':
- // SGR - Select graphics rendition
- sgr();
- break;
- case 'n':
- // DSR - Device status report
- dsr();
- break;
- case 'o':
- case 'p':
- break;
- case 'q':
- // DECLL - Load leds
- // Not supported
- break;
- case 'r':
- // DECSTBM - Set top and bottom margins
- decstbm();
- break;
- case 's':
- break;
- case 't':
- if (type == DeviceType.XTERM) {
- // Window operations
- xtermWindowOps();
- }
- break;
- case 'u':
- case 'v':
- case 'w':
- break;
- case 'x':
- // DECREQTPARM - Request terminal parameters
- decreqtparm();
- break;
- case 'y':
- case 'z':
- case '{':
- case '|':
- case '}':
- case '~':
- break;
- }
- toGround();
- }
-
- // 7F --> ignore
- return;
-
- case CSI_INTERMEDIATE:
- // 00-17, 19, 1C-1F --> execute
- if (ch <= 0x1F) {
- handleControlChar((char) ch);
- }
-
- // 20-2F --> collect
- if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect((char) ch);
- }
-
- // 0x30-3F goes to CSI_IGNORE
- if ((ch >= 0x30) && (ch <= 0x3F)) {
- scanState = ScanState.CSI_IGNORE;
- }
-
- // 40-7E --> dispatch, then switch to GROUND
- if ((ch >= 0x40) && (ch <= 0x7E)) {
- switch (ch) {
- case '@':
- case 'A':
- case 'B':
- case 'C':
- case 'D':
- case 'E':
- case 'F':
- case 'G':
- case 'H':
- case 'I':
- case 'J':
- case 'K':
- case 'L':
- case 'M':
- case 'N':
- case 'O':
- case 'P':
- case 'Q':
- case 'R':
- case 'S':
- case 'T':
- case 'U':
- case 'V':
- case 'W':
- case 'X':
- case 'Y':
- case 'Z':
- case '[':
- case '\\':
- case ']':
- case '^':
- case '_':
- case '`':
- case 'a':
- case 'b':
- case 'c':
- case 'd':
- case 'e':
- case 'f':
- case 'g':
- case 'h':
- case 'i':
- case 'j':
- case 'k':
- case 'l':
- case 'm':
- case 'n':
- case 'o':
- break;
- case 'p':
- if (((type == DeviceType.VT220)
- || (type == DeviceType.XTERM))
- && (collectBuffer.charAt(collectBuffer.length() - 1) == '\"')
- ) {
- // DECSCL - compatibility level
- decscl();
- }
- if ((type == DeviceType.XTERM)
- && (collectBuffer.charAt(collectBuffer.length() - 1) == '!')
- ) {
- // DECSTR - Soft terminal reset
- decstr();
- }
- break;
- case 'q':
- if (((type == DeviceType.VT220)
- || (type == DeviceType.XTERM))
- && (collectBuffer.charAt(collectBuffer.length() - 1) == '\"')
- ) {
- // DECSCA
- decsca();
- }
- break;
- case 'r':
- case 's':
- case 't':
- case 'u':
- case 'v':
- case 'w':
- case 'x':
- case 'y':
- case 'z':
- case '{':
- case '|':
- case '}':
- case '~':
- break;
- }
- toGround();
- }
-
- // 7F --> ignore
- return;
-
- case CSI_IGNORE:
- // 00-17, 19, 1C-1F --> execute
- if (ch <= 0x1F) {
- handleControlChar((char) ch);
- }
-
- // 20-2F --> collect
- if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect((char) ch);
- }
-
- // 40-7E --> ignore, then switch to GROUND
- if ((ch >= 0x40) && (ch <= 0x7E)) {
- toGround();
- }
-
- // 20-3F, 7F --> ignore
-
- return;
-
- case DCS_ENTRY:
-
- // 0x9C goes to GROUND
- if (ch == 0x9C) {
- toGround();
- }
-
- // 0x1B 0x5C goes to GROUND
- if (ch == 0x1B) {
- collect((char) ch);
- }
- if (ch == 0x5C) {
- if ((collectBuffer.length() > 0)
- && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B)
- ) {
- toGround();
- }
- }
-
- // 20-2F --> collect, then switch to DCS_INTERMEDIATE
- if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect((char) ch);
- scanState = ScanState.DCS_INTERMEDIATE;
- }
-
- // 30-39, 3B --> param, then switch to DCS_PARAM
- if ((ch >= '0') && (ch <= '9')) {
- param((byte) ch);
- scanState = ScanState.DCS_PARAM;
- }
- if (ch == ';') {
- param((byte) ch);
- scanState = ScanState.DCS_PARAM;
- }
-
- // 3C-3F --> collect, then switch to DCS_PARAM
- if ((ch >= 0x3C) && (ch <= 0x3F)) {
- collect((char) ch);
- scanState = ScanState.DCS_PARAM;
- }
-
- // 00-17, 19, 1C-1F, 7F --> ignore
-
- // 0x3A goes to DCS_IGNORE
- if (ch == 0x3F) {
- scanState = ScanState.DCS_IGNORE;
- }
-
- // 0x71 goes to DCS_SIXEL
- if (ch == 0x71) {
- sixelParseBuffer = new StringBuilder();
- scanState = ScanState.DCS_SIXEL;
- } else if ((ch >= 0x40) && (ch <= 0x7E)) {
- // 0x40-7E goes to DCS_PASSTHROUGH
- scanState = ScanState.DCS_PASSTHROUGH;
- }
- return;
-
- case DCS_INTERMEDIATE:
-
- // 0x9C goes to GROUND
- if (ch == 0x9C) {
- toGround();
- }
-
- // 0x1B 0x5C goes to GROUND
- if (ch == 0x1B) {
- collect((char) ch);
- }
- if (ch == 0x5C) {
- if ((collectBuffer.length() > 0)
- && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B)
- ) {
- toGround();
- }
- }
-
- // 0x30-3F goes to DCS_IGNORE
- if ((ch >= 0x30) && (ch <= 0x3F)) {
- scanState = ScanState.DCS_IGNORE;
- }
-
- // 0x40-7E goes to DCS_PASSTHROUGH
- if ((ch >= 0x40) && (ch <= 0x7E)) {
- scanState = ScanState.DCS_PASSTHROUGH;
- }
-
- // 00-17, 19, 1C-1F, 7F --> ignore
- return;
-
- case DCS_PARAM:
-
- // 0x9C goes to GROUND
- if (ch == 0x9C) {
- toGround();
- }
-
- // 0x1B 0x5C goes to GROUND
- if (ch == 0x1B) {
- collect((char) ch);
- }
- if (ch == 0x5C) {
- if ((collectBuffer.length() > 0)
- && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B)
- ) {
- toGround();
- }
- }
-
- // 20-2F --> collect, then switch to DCS_INTERMEDIATE
- if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect((char) ch);
- scanState = ScanState.DCS_INTERMEDIATE;
- }
-
- // 30-39, 3B --> param
- if ((ch >= '0') && (ch <= '9')) {
- param((byte) ch);
- }
- if (ch == ';') {
- param((byte) ch);
- }
-
- // 00-17, 19, 1C-1F, 7F --> ignore
-
- // 0x3A, 3C-3F goes to DCS_IGNORE
- if (ch == 0x3F) {
- scanState = ScanState.DCS_IGNORE;
- }
- if ((ch >= 0x3C) && (ch <= 0x3F)) {
- scanState = ScanState.DCS_IGNORE;
- }
-
- // 0x71 goes to DCS_SIXEL
- if (ch == 0x71) {
- sixelParseBuffer = new StringBuilder();
- scanState = ScanState.DCS_SIXEL;
- } else if ((ch >= 0x40) && (ch <= 0x7E)) {
- // 0x40-7E goes to DCS_PASSTHROUGH
- scanState = ScanState.DCS_PASSTHROUGH;
- }
- return;
-
- case DCS_PASSTHROUGH:
- // 0x9C goes to GROUND
- if (ch == 0x9C) {
- toGround();
- }
-
- // 0x1B 0x5C goes to GROUND
- if (ch == 0x1B) {
- collect((char) ch);
- }
- if (ch == 0x5C) {
- if ((collectBuffer.length() > 0)
- && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B)
- ) {
- toGround();
- }
- }
-
- // 00-17, 19, 1C-1F, 20-7E --> put
- if (ch <= 0x17) {
- // We ignore all DCS except sixel.
- return;
- }
- if (ch == 0x19) {
- // We ignore all DCS except sixel.
- return;
- }
- if ((ch >= 0x1C) && (ch <= 0x1F)) {
- // We ignore all DCS except sixel.
- return;
- }
- if ((ch >= 0x20) && (ch <= 0x7E)) {
- // We ignore all DCS except sixel.
- return;
- }
-
- // 7F --> ignore
-
- return;
-
- case DCS_IGNORE:
- // 00-17, 19, 1C-1F, 20-7F --> ignore
-
- // 0x9C goes to GROUND
- if (ch == 0x9C) {
- toGround();
- }
-
- return;
-
- case DCS_SIXEL:
- // 0x9C goes to GROUND
- if (ch == 0x9C) {
- parseSixel();
- toGround();
- return;
- }
-
- // 0x1B 0x5C goes to GROUND
- if (ch == 0x1B) {
- collect((char) ch);
- return;
- }
- if (ch == 0x5C) {
- if ((collectBuffer.length() > 0)
- && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B)
- ) {
- parseSixel();
- toGround();
- return;
- }
- }
-
- // 00-17, 19, 1C-1F, 20-7E --> put
- if ((ch <= 0x17)
- || (ch == 0x19)
- || ((ch >= 0x1C) && (ch <= 0x1F))
- || ((ch >= 0x20) && (ch <= 0x7E))
- ) {
- sixelParseBuffer.append((char) ch);
- }
-
- // 7F --> ignore
- return;
-
- case SOSPMAPC_STRING:
- // 00-17, 19, 1C-1F, 20-7F --> ignore
-
- // Special case for Jexer: PM can pass one control character
- if (ch == 0x1B) {
- pmPut((char) ch);
- }
-
- if ((ch >= 0x20) && (ch <= 0x7F)) {
- pmPut((char) ch);
- }
-
- // 0x9C goes to GROUND
- if (ch == 0x9C) {
- toGround();
- }
-
- return;
-
- case OSC_STRING:
- // Special case for Xterm: OSC can pass control characters
- if ((ch == 0x9C) || (ch == 0x07) || (ch == 0x1B)) {
- oscPut((char) ch);
- }
-
- // 00-17, 19, 1C-1F --> ignore
-
- // 20-7F --> osc_put
- if ((ch >= 0x20) && (ch <= 0x7F)) {
- oscPut((char) ch);
- }
-
- // 0x9C goes to GROUND
- if (ch == 0x9C) {
- toGround();
- }
-
- return;
-
- case VT52_DIRECT_CURSOR_ADDRESS:
- // This is a special case for the VT52 sequence "ESC Y l c"
- if (collectBuffer.length() == 0) {
- collect((char) ch);
- } else if (collectBuffer.length() == 1) {
- // We've got the two characters, one in the buffer and the
- // other in ch.
- cursorPosition(collectBuffer.charAt(0) - '\040', ch - '\040');
- toGround();
- }
- return;
- }
-
- }
-
- /**
- * Expose current cursor X to outside world.
- *
- * @return current cursor X
- */
- public final int getCursorX() {
- if (display.get(currentState.cursorY).isDoubleWidth()) {
- return currentState.cursorX * 2;
- }
- return currentState.cursorX;
- }
-
- /**
- * Expose current cursor Y to outside world.
- *
- * @return current cursor Y
- */
- public final int getCursorY() {
- return currentState.cursorY;
- }
-
- /**
- * Returns true if this terminal has requested the mouse pointer be
- * hidden.
- *
- * @return true if this terminal has requested the mouse pointer be
- * hidden
- */
- public final boolean hasHiddenMousePointer() {
- return hideMousePointer;
- }
-
- /**
- * Get the mouse protocol.
- *
- * @return MouseProtocol.OFF, MouseProtocol.X10, etc.
- */
- public MouseProtocol getMouseProtocol() {
- return mouseProtocol;
- }
-
- /**
- * Draw the left and right cells of a two-cell-wide (full-width) glyph.
- *
- * @param leftX the x position to draw the left half to
- * @param leftY the y position to draw the left half to
- * @param rightX the x position to draw the right half to
- * @param rightY the y position to draw the right half to
- * @param ch the character to draw
- */
- private void drawHalves(final int leftX, final int leftY,
- final int rightX, final int rightY, final int ch) {
-
- // System.err.println("drawHalves(): " + Integer.toHexString(ch));
-
- if (lastTextHeight != textHeight) {
- glyphMaker = GlyphMaker.getInstance(textHeight);
- lastTextHeight = textHeight;
- }
-
- Cell cell = new Cell(ch, currentState.attr);
- BufferedImage image = glyphMaker.getImage(cell, textWidth * 2,
- textHeight);
- BufferedImage leftImage = image.getSubimage(0, 0, textWidth,
- textHeight);
- BufferedImage rightImage = image.getSubimage(textWidth, 0, textWidth,
- textHeight);
-
- Cell left = new Cell(cell);
- left.setImage(leftImage);
- left.setWidth(Cell.Width.LEFT);
- display.get(leftY).replace(leftX, left);
-
- Cell right = new Cell(cell);
- right.setImage(rightImage);
- right.setWidth(Cell.Width.RIGHT);
- display.get(rightY).replace(rightX, right);
- }
-
- /**
- * Set the width of a character cell in pixels.
- *
- * @param textWidth the width in pixels of a character cell
- */
- public void setTextWidth(final int textWidth) {
- this.textWidth = textWidth;
- }
-
- /**
- * Set the height of a character cell in pixels.
- *
- * @param textHeight the height in pixels of a character cell
- */
- public void setTextHeight(final int textHeight) {
- this.textHeight = textHeight;
- }
-
- /**
- * Parse a sixel string into a bitmap image, and overlay that image onto
- * the text cells.
- */
- private void parseSixel() {
-
- /*
- System.err.println("parseSixel(): '" + sixelParseBuffer.toString()
- + "'");
- */
-
- Sixel sixel = new Sixel(sixelParseBuffer.toString(), sixelPalette);
- BufferedImage image = sixel.getImage();
-
- // System.err.println("parseSixel(): image " + image);
-
- if (image == null) {
- // Sixel data was malformed in some way, bail out.
- return;
- }
-
- /*
- * Procedure:
- *
- * Break up the image into text cell sized pieces as a new array of
- * Cells.
- *
- * Note original column position x0.
- *
- * For each cell:
- *
- * 1. Advance (printCharacter(' ')) for horizontal increment, or
- * index (linefeed() + cursorPosition(y, x0)) for vertical
- * increment.
- *
- * 2. Set (x, y) cell image data.
- *
- * 3. For the right and bottom edges:
- *
- * a. Render the text to pixels using Terminus font.
- *
- * b. Blit the image on top of the text, using alpha channel.
- */
- int cellColumns = image.getWidth() / textWidth;
- if (cellColumns * textWidth < image.getWidth()) {
- cellColumns++;
- }
- int cellRows = image.getHeight() / textHeight;
- if (cellRows * textHeight < image.getHeight()) {
- cellRows++;
- }
-
- // Break the image up into an array of cells.
- Cell [][] cells = new Cell[cellColumns][cellRows];
-
- for (int x = 0; x < cellColumns; x++) {
- for (int y = 0; y < cellRows; y++) {
-
- int width = textWidth;
- if ((x + 1) * textWidth > image.getWidth()) {
- width = image.getWidth() - (x * textWidth);
- }
- int height = textHeight;
- if ((y + 1) * textHeight > image.getHeight()) {
- height = image.getHeight() - (y * textHeight);
- }
-
- Cell cell = new Cell();
- cell.setImage(image.getSubimage(x * textWidth,
- y * textHeight, width, height));
-
- cells[x][y] = cell;
- }
- }
-
- int x0 = currentState.cursorX;
- for (int y = 0; y < cellRows; y++) {
- for (int x = 0; x < cellColumns; x++) {
- assert (currentState.cursorX <= rightMargin);
-
- // TODO: Render text of current cell first, then image over
- // it (accounting for blank pixels). For now, just copy the
- // cell.
- DisplayLine line = display.get(currentState.cursorY);
- line.replace(currentState.cursorX, cells[x][y]);
-
- // If at the end of the visible screen, stop.
- if (currentState.cursorX == rightMargin) {
- break;
- }
- // Room for more image on the visible screen.
- currentState.cursorX++;
- }
- linefeed();
- cursorPosition(currentState.cursorY, x0);
- }
-
- }
-
- /**
- * Parse a "Jexer" image string into a bitmap image, and overlay that
- * image onto the text cells.
- *
- * @param pw width token
- * @param ph height token
- * @param ps scroll token
- * @param data pixel data
- */
- private void parseJexerImage(final String pw, final String ph,
- final String ps, final String data) {
-
- int imageWidth = 0;
- int imageHeight = 0;
- boolean scroll = false;
- try {
- imageWidth = Integer.parseInt(pw);
- imageHeight = Integer.parseInt(ph);
- } catch (NumberFormatException e) {
- // SQUASH
- return;
- }
- if ((imageWidth < 1)
- || (imageWidth > 10000)
- || (imageHeight < 1)
- || (imageHeight > 10000)
- ) {
- return;
- }
- if (ps.equals("1")) {
- scroll = true;
- } else if (ps.equals("0")) {
- scroll = false;
- } else {
- return;
- }
-
- java.util.Base64.Decoder base64 = java.util.Base64.getDecoder();
- byte [] bytes = base64.decode(data);
- if (bytes.length != (imageWidth * imageHeight * 3)) {
- return;
- }
-
- BufferedImage image = new BufferedImage(imageWidth, imageHeight,
- BufferedImage.TYPE_INT_ARGB);
-
- for (int x = 0; x < imageWidth; x++) {
- for (int y = 0; y < imageHeight; y++) {
- int red = bytes[(y * imageWidth * 3) + (x * 3) ];
- if (red < 0) {
- red += 256;
- }
- int green = bytes[(y * imageWidth * 3) + (x * 3) + 1];
- if (green < 0) {
- green += 256;
- }
- int blue = bytes[(y * imageWidth * 3) + (x * 3) + 2];
- if (blue < 0) {
- blue += 256;
- }
- int rgb = 0xFF000000 | (red << 16) | (green << 8) | blue;
- image.setRGB(x, y, rgb);
- }
- }
-
- /*
- * Procedure:
- *
- * Break up the image into text cell sized pieces as a new array of
- * Cells.
- *
- * Note original column position x0.
- *
- * For each cell:
- *
- * 1. Advance (printCharacter(' ')) for horizontal increment, or
- * index (linefeed() + cursorPosition(y, x0)) for vertical
- * increment.
- *
- * 2. Set (x, y) cell image data.
- *
- * 3. For the right and bottom edges:
- *
- * a. Render the text to pixels using Terminus font.
- *
- * b. Blit the image on top of the text, using alpha channel.
- */
- int cellColumns = image.getWidth() / textWidth;
- if (cellColumns * textWidth < image.getWidth()) {
- cellColumns++;
- }
- int cellRows = image.getHeight() / textHeight;
- if (cellRows * textHeight < image.getHeight()) {
- cellRows++;
- }
-
- // Break the image up into an array of cells.
- Cell [][] cells = new Cell[cellColumns][cellRows];
-
- for (int x = 0; x < cellColumns; x++) {
- for (int y = 0; y < cellRows; y++) {
-
- int width = textWidth;
- if ((x + 1) * textWidth > image.getWidth()) {
- width = image.getWidth() - (x * textWidth);
- }
- int height = textHeight;
- if ((y + 1) * textHeight > image.getHeight()) {
- height = image.getHeight() - (y * textHeight);
- }
-
- Cell cell = new Cell();
- cell.setImage(image.getSubimage(x * textWidth,
- y * textHeight, width, height));
-
- cells[x][y] = cell;
- }
- }
-
- int x0 = currentState.cursorX;
- for (int y = 0; y < cellRows; y++) {
- for (int x = 0; x < cellColumns; x++) {
- assert (currentState.cursorX <= rightMargin);
- DisplayLine line = display.get(currentState.cursorY);
- line.replace(currentState.cursorX, cells[x][y]);
- // If at the end of the visible screen, stop.
- if (currentState.cursorX == rightMargin) {
- break;
- }
- // Room for more image on the visible screen.
- currentState.cursorX++;
- }
- if ((scroll == true)
- || ((scroll == false)
- && (currentState.cursorY < scrollRegionBottom))
- ) {
- linefeed();
- }
- cursorPosition(currentState.cursorY, x0);
- }
-
- }
-
-}
git://git.nikiroo.be / fanfix.git / blobdiff