From 34a42e784bf1238c6bb2847c52d7c841fcfdef5f Mon Sep 17 00:00:00 2001 From: Kevin Lamonte Date: Wed, 18 Mar 2015 23:27:59 -0400 Subject: [PATCH] TTerminalWindow working --- README.md | 1 - src/jexer/TApplication.java | 39 +- src/jexer/TTerminalWindow.java | 419 ++ src/jexer/TWindow.java | 9 + src/jexer/demos/Demo1.java | 8 +- src/jexer/menu/TMenu.java | 3 +- src/jexer/tterminal/DECCharacterSets.java | 375 ++ src/jexer/tterminal/DisplayLine.java | 222 + src/jexer/tterminal/ECMA48.java | 5521 +++++++++++++++++++++ src/jexer/tterminal/package-info.java | 35 + 10 files changed, 6616 insertions(+), 16 deletions(-) create mode 100644 src/jexer/TTerminalWindow.java create mode 100644 src/jexer/tterminal/DECCharacterSets.java create mode 100644 src/jexer/tterminal/DisplayLine.java create mode 100644 src/jexer/tterminal/ECMA48.java create mode 100644 src/jexer/tterminal/package-info.java diff --git a/README.md b/README.md index f287251..a58e024 100644 --- a/README.md +++ b/README.md @@ -95,7 +95,6 @@ Many tasks remain before calling this version 1.0: 0.0.3: - TEditor -- TTerminal 0.0.4: diff --git a/src/jexer/TApplication.java b/src/jexer/TApplication.java index e887b5d..4aaab1d 100644 --- a/src/jexer/TApplication.java +++ b/src/jexer/TApplication.java @@ -1259,14 +1259,11 @@ public class TApplication { return true; } - /* - TODO if (command.equals(cmShell)) { - openTerminal(0, 0, TWindow.Flag.RESIZABLE); + openTerminal(0, 0, TWindow.RESIZABLE); repaint = true; return true; } - */ if (command.equals(cmTile)) { tileWindows(); @@ -1307,14 +1304,11 @@ public class TApplication { return true; } - /* - TODO - if (menu.id == TMenu.MID_SHELL) { - openTerminal(0, 0, TWindow.Flag.RESIZABLE); + if (menu.getId() == TMenu.MID_SHELL) { + openTerminal(0, 0, TWindow.RESIZABLE); repaint = true; return true; } - */ if (menu.getId() == TMenu.MID_TILE) { tileWindows(); @@ -1521,8 +1515,6 @@ public class TApplication { int newWidth = (getScreen().getWidth() / a); int newHeight1 = ((getScreen().getHeight() - 1) / b); int newHeight2 = ((getScreen().getHeight() - 1) / (b + c)); - // System.err.printf("Z %s a %s b %s c %s newWidth %s newHeight1 %s newHeight2 %s", - // z, a, b, c, newWidth, newHeight1, newHeight2); List sorted = new LinkedList(windows); Collections.sort(sorted); @@ -1662,4 +1654,29 @@ public class TApplication { return new TInputBox(this, title, caption, text); } + /** + * Convenience function to open a terminal window. + * + * @param x column relative to parent + * @param y row relative to parent + * @return the terminal new window + */ + public final TTerminalWindow openTerminal(final int x, final int y) { + return openTerminal(x, y, TWindow.RESIZABLE); + } + + /** + * Convenience function to open a terminal window. + * + * @param x column relative to parent + * @param y row relative to parent + * @param flags mask of CENTERED, MODAL, or RESIZABLE + * @return the terminal new window + */ + public final TTerminalWindow openTerminal(final int x, final int y, + final int flags) { + + return new TTerminalWindow(this, x, y, flags); + } + } diff --git a/src/jexer/TTerminalWindow.java b/src/jexer/TTerminalWindow.java new file mode 100644 index 0000000..83cc86e --- /dev/null +++ b/src/jexer/TTerminalWindow.java @@ -0,0 +1,419 @@ +/** + * Jexer - Java Text User Interface + * + * License: LGPLv3 or later + * + * This module is licensed under the GNU Lesser General Public License + * Version 3. Please see the file "COPYING" in this directory for more + * information about the GNU Lesser General Public License Version 3. + * + * Copyright (C) 2015 Kevin Lamonte + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see + * http://www.gnu.org/licenses/, or write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + * @author Kevin Lamonte [kevin.lamonte@gmail.com] + * @version 1 + */ +package jexer; + +import java.io.InputStream; +import java.io.IOException; +import java.io.OutputStream; +import java.io.UnsupportedEncodingException; +import java.util.LinkedList; +import java.util.List; + +import jexer.bits.Cell; +import jexer.bits.CellAttributes; +import jexer.event.TKeypressEvent; +import jexer.event.TMouseEvent; +import jexer.event.TResizeEvent; +import jexer.tterminal.DisplayLine; +import jexer.tterminal.ECMA48; +import static jexer.TKeypress.*; + +/** + * TTerminalWindow exposes a ECMA-48 / ANSI X3.64 style terminal in a window. + */ +public class TTerminalWindow extends TWindow { + + /** + * The emulator. + */ + private ECMA48 emulator; + + /** + * The Process created by the shell spawning constructor. + */ + private Process shell; + + /** + * Vertical scrollbar. + */ + private TVScroller vScroller; + + /** + * Public constructor spawns a shell. + * + * @param application TApplication that manages this window + * @param x column relative to parent + * @param y row relative to parent + * @param flags mask of CENTERED, MODAL, or RESIZABLE + */ + public TTerminalWindow(final TApplication application, final int x, + final int y, final int flags) { + + super(application, "Terminal", x, y, 80 + 2, 24 + 2, flags); + + try { + String [] cmdShellWindows = { + "cmd.exe" + }; + + // You cannot run a login shell in a bare Process interactively, + // due to libc's behavior of buffering when stdin/stdout aren't a + // tty. Use 'script' instead to run a shell in a pty. + String [] cmdShell = { + "script", "-fqe", "/dev/null" + }; + // Spawn a shell and pass its I/O to the other constructor. + ProcessBuilder pb; + if (System.getProperty("os.name").startsWith("Windows")) { + pb = new ProcessBuilder(cmdShellWindows); + } else { + pb = new ProcessBuilder(cmdShell); + } + // shell = Runtime.getRuntime().exec(cmdShell); + + // TODO: add LANG, TERM, LINES, and COLUMNS + pb.redirectErrorStream(true); + shell = pb.start(); + emulator = new ECMA48(ECMA48.DeviceType.XTERM, + shell.getInputStream(), + shell.getOutputStream()); + } catch (IOException e) { + e.printStackTrace(); + } + + // Setup the scroll bars + onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(), + getHeight())); + } + + /** + * Public constructor. + * + * @param application TApplication that manages this window + * @param x column relative to parent + * @param y row relative to parent + * @param flags mask of CENTERED, MODAL, or RESIZABLE + * @param input an InputStream connected to the remote side. For type == + * XTERM, input is converted to a Reader with UTF-8 encoding. + * @param output an OutputStream connected to the remote user. For type + * == XTERM, output is converted to a Writer with UTF-8 encoding. + * @throws UnsupportedEncodingException if an exception is thrown when + * creating the InputStreamReader + */ + public TTerminalWindow(final TApplication application, final int x, + final int y, final int flags, final InputStream input, + final OutputStream output) throws UnsupportedEncodingException { + + super(application, "Terminal", x, y, 80 + 2, 24 + 2, flags); + + emulator = new ECMA48(ECMA48.DeviceType.XTERM, input, output); + + // Setup the scroll bars + onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(), + getHeight())); + + } + + /** + * Draw the display buffer. + */ + @Override + public void draw() { + // Synchronize against the emulator so we don't stomp on its reader + // thread. + synchronized (emulator) { + + // Update the scroll bars + reflow(); + + // Draw the box using my superclass + super.draw(); + + List scrollback = emulator.getScrollbackBuffer(); + List display = emulator.getDisplayBuffer(); + + // Put together the visible rows + // System.err.printf("----------------------------\n"); + // System.err.printf("vScroller.value %d\n", vScroller.getValue()); + int visibleHeight = getHeight() - 2; + // System.err.printf("visibleHeight %d\n", visibleHeight); + int visibleBottom = scrollback.size() + display.size() + + vScroller.getValue(); + // System.err.printf("visibleBottom %d\n", visibleBottom); + assert (visibleBottom >= 0); + + List preceedingBlankLines = new LinkedList(); + int visibleTop = visibleBottom - visibleHeight; + // System.err.printf("visibleTop %d\n", visibleTop); + if (visibleTop < 0) { + for (int i = visibleTop; i < 0; i++) { + preceedingBlankLines.add(emulator.getBlankDisplayLine()); + } + visibleTop = 0; + } + assert (visibleTop >= 0); + + List displayLines = new LinkedList(); + displayLines.addAll(scrollback); + displayLines.addAll(display); + // System.err.printf("displayLines.size %d\n", displayLines.size()); + + List visibleLines = new LinkedList(); + visibleLines.addAll(preceedingBlankLines); + visibleLines.addAll(displayLines.subList(visibleTop, + visibleBottom)); + // System.err.printf("visibleLines.size %d\n", visibleLines.size()); + + visibleHeight -= visibleLines.size(); + // System.err.printf("visibleHeight %d\n", visibleHeight); + assert (visibleHeight >= 0); + + // Now draw the emulator screen + int row = 1; + for (DisplayLine line: visibleLines) { + int widthMax = emulator.getWidth(); + if (line.isDoubleWidth()) { + widthMax /= 2; + } + if (widthMax > getWidth() - 2) { + widthMax = getWidth() - 2; + } + for (int i = 0; i < widthMax; i++) { + Cell ch = line.charAt(i); + Cell newCell = new Cell(); + newCell.setTo(ch); + boolean reverse = line.isReverseColor() ^ ch.getReverse(); + newCell.setReverse(false); + if (reverse) { + newCell.setBackColor(ch.getForeColor()); + newCell.setForeColor(ch.getBackColor()); + } + if (line.isDoubleWidth()) { + getScreen().putCharXY((i * 2) + 1, row, newCell); + getScreen().putCharXY((i * 2) + 2, row, ' ', newCell); + } else { + getScreen().putCharXY(i + 1, row, newCell); + } + } + row++; + if (row == getHeight() - 1) { + // Don't overwrite the box edge + break; + } + } + CellAttributes background = new CellAttributes(); + // Fill in the blank lines on bottom + for (int i = 0; i < visibleHeight; i++) { + getScreen().hLineXY(1, i + row, getWidth() - 2, ' ', + background); + } + + } // synchronized (emulator) + + } + + /** + * Handle window close. + */ + @Override public void onClose() { + emulator.close(); + } + + /** + * Copy out variables from the emulator that TTerminal has to expose on + * screen. + */ + private void readEmulatorState() { + // Synchronize against the emulator so we don't stomp on its reader + // thread. + synchronized (emulator) { + + setCursorX(emulator.getCursorX() + 1); + setCursorY(emulator.getCursorY() + 1 + + (getHeight() - 2 - emulator.getHeight())); + if (vScroller != null) { + setCursorY(getCursorY() - vScroller.getValue()); + } + setHasCursor(emulator.visibleCursor()); + if (getCursorX() > getWidth() - 2) { + setHasCursor(false); + } + if ((getCursorY() > getHeight() - 2) || (getCursorY() < 0)) { + setHasCursor(false); + } + if (emulator.getScreenTitle().length() > 0) { + // Only update the title if the shell is still alive + if (shell != null) { + setTitle(emulator.getScreenTitle()); + } + } + setMaximumWindowWidth(emulator.getWidth() + 2); + + // Check to see if the shell has died. + if (!emulator.isReading() && (shell != null)) { + // The emulator exited on its own, all is fine + setTitle(String.format("%s [Completed - %d]", + getTitle(), shell.exitValue())); + shell = null; + emulator.close(); + } else if (emulator.isReading() && (shell != null)) { + // The shell might be dead, let's check + try { + int rc = shell.exitValue(); + // If we got here, the shell died. + setTitle(String.format("%s [Completed - %d]", + getTitle(), rc)); + shell = null; + emulator.close(); + } catch (IllegalThreadStateException e) { + // The shell is still running, do nothing. + } + } + + } // synchronized (emulator) + } + + /** + * Handle window/screen resize events. + * + * @param resize resize event + */ + @Override + public void onResize(final TResizeEvent resize) { + + // Synchronize against the emulator so we don't stomp on its reader + // thread. + synchronized (emulator) { + + if (resize.getType() == TResizeEvent.Type.WIDGET) { + // Resize the scroll bars + reflow(); + + // Get out of scrollback + vScroller.setValue(0); + } + return; + + } // synchronized (emulator) + } + + /** + * Resize scrollbars for a new width/height. + */ + private void reflow() { + + // Synchronize against the emulator so we don't stomp on its reader + // thread. + synchronized (emulator) { + + // Pull cursor information + readEmulatorState(); + + // Vertical scrollbar + if (vScroller == null) { + vScroller = new TVScroller(this, getWidth() - 2, 0, + getHeight() - 2); + vScroller.setBottomValue(0); + vScroller.setValue(0); + } else { + vScroller.setX(getWidth() - 2); + vScroller.setHeight(getHeight() - 2); + } + vScroller.setTopValue(getHeight() - 2 + - (emulator.getScrollbackBuffer().size() + + emulator.getDisplayBuffer().size())); + vScroller.setBigChange(getHeight() - 2); + + } // synchronized (emulator) + } + + /** + * Handle keystrokes. + * + * @param keypress keystroke event + */ + @Override + public void onKeypress(final TKeypressEvent keypress) { + + // Scrollback up/down + if (keypress.equals(kbShiftPgUp) + || keypress.equals(kbCtrlPgUp) + || keypress.equals(kbAltPgUp) + ) { + vScroller.bigDecrement(); + return; + } + if (keypress.equals(kbShiftPgDn) + || keypress.equals(kbCtrlPgDn) + || keypress.equals(kbAltPgDn) + ) { + vScroller.bigIncrement(); + return; + } + + // Synchronize against the emulator so we don't stomp on its reader + // thread. + synchronized (emulator) { + if (emulator.isReading()) { + // Get out of scrollback + vScroller.setValue(0); + emulator.keypress(keypress.getKey()); + readEmulatorState(); + return; + } + } + + // Process is closed, honor "normal" TUI keystrokes + super.onKeypress(keypress); + } + + /** + * Handle mouse press events. + * + * @param mouse mouse button press event + */ + @Override + public void onMouseDown(final TMouseEvent mouse) { + + if (mouse.getMouseWheelUp()) { + vScroller.decrement(); + return; + } + if (mouse.getMouseWheelDown()) { + vScroller.increment(); + return; + } + + // Pass to children + super.onMouseDown(mouse); + } + +} diff --git a/src/jexer/TWindow.java b/src/jexer/TWindow.java index e15092e..2fc4aa5 100644 --- a/src/jexer/TWindow.java +++ b/src/jexer/TWindow.java @@ -187,6 +187,15 @@ public class TWindow extends TWidget { private int restoreWindowX; private int restoreWindowY; + /** + * Set the maximum width for this window. + * + * @param maximumWindowWidth new maximum width + */ + public final void setMaximumWindowWidth(final int maximumWindowWidth) { + this.maximumWindowWidth = maximumWindowWidth; + } + /** * Public constructor. Window will be located at (0, 0). * diff --git a/src/jexer/demos/Demo1.java b/src/jexer/demos/Demo1.java index bb158dd..f0a8c59 100644 --- a/src/jexer/demos/Demo1.java +++ b/src/jexer/demos/Demo1.java @@ -405,17 +405,19 @@ class DemoMainWindow extends TWindow { ); } row += 2; + */ if (!isModal()) { addLabel("Terminal", 1, row); addButton("Termi&nal", 35, row, - { - getApplication().openTerminal(0, 0); + new TAction() { + public void DO() { + getApplication().openTerminal(0, 0); + } } ); } row += 2; - */ progressBar = addProgressBar(1, row, 22, 0); row++; diff --git a/src/jexer/menu/TMenu.java b/src/jexer/menu/TMenu.java index de49760..ad8e4ac 100644 --- a/src/jexer/menu/TMenu.java +++ b/src/jexer/menu/TMenu.java @@ -473,7 +473,8 @@ public final class TMenu extends TWindow { break; case MID_WINDOW_CLOSE: label = "&Close"; - key = kbCtrlW; + hasKey = false; + // key = kbCtrlW; break; default: diff --git a/src/jexer/tterminal/DECCharacterSets.java b/src/jexer/tterminal/DECCharacterSets.java new file mode 100644 index 0000000..12c2dd8 --- /dev/null +++ b/src/jexer/tterminal/DECCharacterSets.java @@ -0,0 +1,375 @@ +/** + * Jexer - Java Text User Interface + * + * License: LGPLv3 or later + * + * This module is licensed under the GNU Lesser General Public License + * Version 3. Please see the file "COPYING" in this directory for more + * information about the GNU Lesser General Public License Version 3. + * + * Copyright (C) 2015 Kevin Lamonte + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see + * http://www.gnu.org/licenses/, or write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + * @author Kevin Lamonte [kevin.lamonte@gmail.com] + * @version 1 + */ +package jexer.tterminal; + +/** + * This class contains a collection of the DEC VT100 and VT220 character set + * mappings into Unicode. + */ +public final class DECCharacterSets { + + /** + * Private constructor prevents accidental creation of this class. + */ + private DECCharacterSets() { + } + + /** + * US - Normal "international" (ASCII). + */ + public static final char [] US_ASCII = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F, + 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x007E, 0x0020 + }; + + /** + * DEC Supplemental Graphics (VT100 drawing characters). + */ + public static final char [] SPECIAL_GRAPHICS = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F, + 0x2666, 0x2592, 0x2409, 0x240C, 0x240D, 0x240A, 0x00B0, 0x00B1, + 0x2424, 0x240B, 0x2518, 0x2510, 0x250C, 0x2514, 0x253C, 0x23BA, + 0x23BB, 0x2500, 0x23BC, 0x23BD, 0x251C, 0x2524, 0x2534, 0x252C, + 0x2502, 0x2264, 0x2265, 0x03C0, 0x2260, 0x00A3, 0x00B7, 0x0020 + }; + + /** + * Dec Supplemental (DEC multinational). + */ + public static final char [] DEC_SUPPLEMENTAL = { + 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087, + 0x0088, 0x0089, 0x008A, 0x008B, 0x008C, 0x008D, 0x008E, 0x008F, + 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097, + 0x0098, 0x0099, 0x009A, 0x009B, 0x009C, 0x009D, 0x009E, 0x009F, + 0x0020, 0x00A1, 0x00A2, 0x00A3, 0x00A8, 0x00A5, 0x0020, 0x00A7, + 0x00A4, 0x00A9, 0x00AA, 0x00AB, 0x0020, 0x0020, 0x0020, 0x0020, + 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x0020, 0x00B5, 0x00B6, 0x00B7, + 0x0020, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x0020, 0x00BF, + 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7, + 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, + 0x0020, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x0157, + 0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x0178, 0x0020, 0x00DF, + 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7, + 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, + 0x0020, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x0153, + 0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FF, 0x0020, 0x0020 + }; + + /** + * UK. + */ + public static final char [] UK = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x00A3, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F, + 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x007E, 0x0020 + }; + + /** + * DUTCH. + */ + public static final char [] NL = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x00A3, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x00BE, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x0133, 0x00BD, 0x007C, 0x005E, 0x005F, + 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x00A8, 0x0066, 0x00BC, 0x00B4, 0x0020 + }; + + /** + * FINNISH. + */ + public static final char [] FI = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x00C4, 0x00D6, 0x00C5, 0x00DC, 0x005F, + 0x00E9, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x00E4, 0x00F6, 0x00E5, 0x00FC, 0x0020 + }; + + /** + * FRENCH. + */ + public static final char [] FR = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x00A3, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x00E0, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x00B0, 0x00E7, 0x00A7, 0x005E, 0x005F, + 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x00E9, 0x00F9, 0x00E8, 0x00A8, 0x0020 + }; + + /** + * FRENCH_CA. + */ + public static final char [] FR_CA = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x00E0, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x00E2, 0x00E7, 0x00EA, 0x00EE, 0x005F, + 0x00F4, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x00E9, 0x00F9, 0x00E8, 0x00FB, 0x0020 + }; + + /** + * GERMAN. + */ + public static final char [] DE = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x00A7, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x00C4, 0x00D6, 0x00DC, 0x005E, 0x005F, + 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x00E4, 0x00F6, 0x00FC, 0x00DF, 0x0020 + }; + + /** + * ITALIAN. + */ + public static final char [] IT = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x00A3, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x00A7, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x00B0, 0x00E7, 0x00E9, 0x005E, 0x005F, + 0x00F9, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x00E0, 0x00F2, 0x00E8, 0x00EC, 0x0020 + }; + + /** + * NORWEGIAN. + */ + public static final char [] NO = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x00C4, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x00C6, 0x00D8, 0x00C5, 0x00DC, 0x005F, + 0x00E4, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x00E6, 0x00F8, 0x00E5, 0x00FC, 0x0020 + }; + + /** + * SPANISH. + */ + public static final char [] ES = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x00A3, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x00A7, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x00A1, 0x00D1, 0x00BF, 0x005E, 0x005F, + 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x00B0, 0x00F1, 0x00E7, 0x007E, 0x0020 + }; + + /** + * SWEDISH. + */ + public static final char [] SV = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x00C9, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x00C4, 0x00D6, 0x00C5, 0x00DC, 0x005F, + 0x00E9, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x00E4, 0x00F6, 0x00E5, 0x00FC, 0x0020 + }; + + /** + * SWISS. + */ + public static final char [] SWISS = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x00F9, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x00E0, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x00E9, 0x00E7, 0x00EA, 0x00EE, 0x00E8, + 0x00F4, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, + 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, + 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, + 0x0078, 0x0079, 0x007A, 0x00E4, 0x00F6, 0x00FC, 0x00FB, 0x0020 + }; + + /** + * VT52 drawing characters. + */ + public static final char [] VT52_SPECIAL_GRAPHICS = { + 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, + 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, + 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, + 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, + 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, + 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, + 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, + 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, + 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, + 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, + 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, + 0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x0020, 0x0020, + 0x0020, 0x2588, 0x215F, 0x2592, 0x2592, 0x2592, 0x00B0, 0x00B1, + 0x2190, 0x2026, 0x00F7, 0x2193, 0x23BA, 0x23BA, 0x23BB, 0x23BB, + 0x2500, 0x2500, 0x23BC, 0x23BC, 0x2080, 0x2081, 0x2082, 0x2083, + 0x2084, 0x2085, 0x2086, 0x2087, 0x2088, 0x2089, 0x00B6, 0x0020 + }; + +} diff --git a/src/jexer/tterminal/DisplayLine.java b/src/jexer/tterminal/DisplayLine.java new file mode 100644 index 0000000..3f2cfd7 --- /dev/null +++ b/src/jexer/tterminal/DisplayLine.java @@ -0,0 +1,222 @@ +/** + * Jexer - Java Text User Interface + * + * License: LGPLv3 or later + * + * This module is licensed under the GNU Lesser General Public License + * Version 3. Please see the file "COPYING" in this directory for more + * information about the GNU Lesser General Public License Version 3. + * + * Copyright (C) 2015 Kevin Lamonte + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see + * http://www.gnu.org/licenses/, or write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + * @author Kevin Lamonte [kevin.lamonte@gmail.com] + * @version 1 + */ +package jexer.tterminal; + +import jexer.bits.Cell; +import jexer.bits.CellAttributes; + +/** + * This represents a single line of the display buffer. + */ +public final class DisplayLine { + /** + * Maximum line length. + */ + private static final int MAX_LINE_LENGTH = 256; + + /** + * The characters/attributes of the line. + */ + private Cell [] chars; + + /** + * Get the Cell at a specific column. + * + * @param idx the character index + * @return the Cell + */ + public Cell charAt(final int idx) { + return chars[idx]; + } + + /** + * Get the length of this line. + * + * @return line length + */ + public int length() { + return chars.length; + } + + /** + * Double-width line flag. + */ + private boolean doubleWidth = false; + + /** + * Get double width flag. + * + * @return double width + */ + public boolean isDoubleWidth() { + return doubleWidth; + } + + /** + * Set double width flag. + * + * @param doubleWidth new value for double width flag + */ + public void setDoubleWidth(final boolean doubleWidth) { + this.doubleWidth = doubleWidth; + } + + /** + * Double height line flag. Valid values are: + * + * 

+     *   0 = single height
+     *   1 = top half double height
+     *   2 = bottom half double height
+     *
+ */ + private int doubleHeight = 0; + + /** + * Get double height flag. + * + * @return double height + */ + public int getDoubleHeight() { + return doubleHeight; + } + + /** + * Set double height flag. + * + * @param doubleHeight new value for double height flag + */ + public void setDoubleHeight(final int doubleHeight) { + this.doubleHeight = doubleHeight; + } + + /** + * DECSCNM - reverse video. We copy the flag to the line so that + * reverse-mode scrollback lines still show inverted colors correctly. + */ + private boolean reverseColor = false; + + /** + * Get reverse video flag. + * + * @return reverse video + */ + public boolean isReverseColor() { + return reverseColor; + } + + /** + * Set double-height flag. + * + * @param reverseColor new value for reverse video flag + */ + public void setReverseColor(final boolean reverseColor) { + this.reverseColor = reverseColor; + } + + /** + * Public constructor sets everything to drawing attributes. + * + * @param attr current drawing attributes + */ + public DisplayLine(final CellAttributes attr) { + chars = new Cell[MAX_LINE_LENGTH]; + for (int i = 0; i < chars.length; i++) { + chars[i] = new Cell(); + chars[i].setTo(attr); + } + } + + /** + * Insert a character at the specified position. + * + * @param idx the character index + * @param newCell the new Cell + */ + public void insert(final int idx, final Cell newCell) { + System.arraycopy(chars, idx, chars, idx + 1, chars.length - idx - 1); + chars[idx] = newCell; + } + + /** + * Replace character at the specified position. + * + * @param idx the character index + * @param newCell the new Cell + */ + public void replace(final int idx, final Cell newCell) { + chars[idx] = newCell; + } + + /** + * Set the Cell at the specified position to the blank (reset). + * + * @param idx the character index + */ + public void setBlank(final int idx) { + chars[idx].reset(); + } + + /** + * Set the character (just the char, not the attributes) at the specified + * position to ch. + * + * @param idx the character index + * @param ch the new char + */ + public void setChar(final int idx, final char ch) { + chars[idx].setChar(ch); + } + + /** + * Set the attributes (just the attributes, not the char) at the + * specified position to attr. + * + * @param idx the character index + * @param attr the new attributes + */ + public void setAttr(final int idx, final CellAttributes attr) { + chars[idx].setAttr(attr); + } + + /** + * Delete character at the specified position, filling in new characters + * on the right with newCell. + * + * @param idx the character index + * @param newCell the new Cell + */ + public void delete(final int idx, final Cell newCell) { + System.arraycopy(chars, idx + 1, chars, idx, chars.length - idx - 1); + chars[chars.length - 1] = newCell; + } + +} diff --git a/src/jexer/tterminal/ECMA48.java b/src/jexer/tterminal/ECMA48.java new file mode 100644 index 0000000..41a5f4d --- /dev/null +++ b/src/jexer/tterminal/ECMA48.java @@ -0,0 +1,5521 @@ +/** + * Jexer - Java Text User Interface + * + * License: LGPLv3 or later + * + * This module is licensed under the GNU Lesser General Public License + * Version 3. Please see the file "COPYING" in this directory for more + * information about the GNU Lesser General Public License Version 3. + * + * Copyright (C) 2015 Kevin Lamonte + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see + * http://www.gnu.org/licenses/, or write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + * @author Kevin Lamonte [kevin.lamonte@gmail.com] + * @version 1 + */ +package jexer.tterminal; + +import java.io.InputStream; +import java.io.InputStreamReader; +import java.io.IOException; +import java.io.OutputStream; +import java.io.OutputStreamWriter; +import java.io.Reader; +import java.io.UnsupportedEncodingException; +import java.io.Writer; +import java.util.ArrayList; +import java.util.Collections; +import java.util.LinkedList; +import java.util.List; + +import jexer.bits.Color; +import jexer.bits.Cell; +import jexer.bits.CellAttributes; +import jexer.TKeypress; +import static jexer.TKeypress.*; + +/** + * This implements a complex ANSI ECMA-48/ISO 6429/ANSI X3.64 type consoles, + * including a scrollback buffer. + * + *

+ * It currently implements VT100, VT102, VT220, and XTERM with the following + * caveats: + * + *

+ * - Smooth scrolling, printing, keyboard locking, keyboard leds, and tests + * from VT100 are not supported. + * + *

+ * - 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.) + * + *

+ * - Numeric/application keys from the number pad are not supported because + * they are not exposed from the TKeypress API. + * + *

+ * - VT52 HOLD SCREEN mode is not supported. + * + *

+ * - In VT52 graphics mode, the 3/, 5/, and 7/ characters (fraction + * numerators) are not rendered correctly. + * + *

+ * - All data meant for the 'printer' (CSI Pc ? i) is discarded. + */ +public class ECMA48 implements Runnable { + + /** + * 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 + } + + /** + * 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: + // "I am a VT220" - 7 bit version + if (!s8c1t) { + return "\033[?62;1;6c"; + } + // "I am a VT220" - 8 bit version + return "\u009b?62;1;6c"; + case XTERM: + // "I am a VT100 with advanced video option" (often VT102) + return "\033[?1;2c"; + default: + throw new IllegalArgumentException("Invalid device type: " + type); + } + } + + /** + * Return the proper TERM environment variable for this device type. + * + * @return "TERM=vt100", "TERM=xterm", etc. + */ + public String deviceTypeTerm() { + switch (type) { + case VT100: + return "TERM=vt100"; + + case VT102: + return "TERM=vt102"; + + case VT220: + return "TERM=vt220"; + + case XTERM: + return "TERM=xterm"; + + default: + throw new IllegalArgumentException("Invalid device type: " + type); + } + } + + /** + * 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 baseLang a base language without UTF-8 flag such as "C" or + * "en_US" + * @return "LANG=en_US", "LANG=en_US.UTF-8", etc. + */ + public String deviceTypeLang(final String baseLang) { + switch (type) { + + case VT100: + return "LANG=" + baseLang; + + case VT102: + return "LANG=" + baseLang; + + case VT220: + return "LANG=" + baseLang; + + case XTERM: + return "LANG=" + baseLang + ".UTF-8"; + + default: + throw new IllegalArgumentException("Invalid device type: " + type); + } + } + + /** + * Write a string directly to the remote side. + * + * @param str string to send + */ + private 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 { + 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.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() { + + // Synchronize so we don't stomp on the reader thread. + synchronized (this) { + + // Tell the reader thread to stop looking at input. It will + // close the input stream as it exits. + if (stopReaderThread == false) { + stopReaderThread = true; + try { + readerThread.join(); + } catch (InterruptedException e) { + e.printStackTrace(); + } + } + + // 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 (output != null) { + try { + output.close(); + } catch (IOException e) { + // SQUASH + } + output = null; + } + break; + default: + throw new IllegalArgumentException("Invalid device type: " + + type); + } + } // synchronized (this) + } + + /** + * When true, the reader thread is expected to exit. + */ + private boolean stopReaderThread = false; + + /** + * The reader thread. + */ + private Thread readerThread = null; + + /** + * 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); + } + + /** + * The type of emulator to be. + */ + private DeviceType type = DeviceType.VT102; + + /** + * 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); + } + + /** + * The scrollback buffer characters + attributes. + */ + private List scrollback; + + /** + * Get the scrollback buffer. + * + * @return the scrollback buffer + */ + public final List getScrollbackBuffer() { + return scrollback; + } + + /** + * The raw display buffer characters + attributes. + */ + private List display; + + /** + * Get the display buffer. + * + * @return the display buffer + */ + public final List getDisplayBuffer() { + return display; + } + + /** + * 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 InputStream 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; + + /** + * Parser character scan states. + */ + enum ScanState { + GROUND, + ESCAPE, + ESCAPE_INTERMEDIATE, + CSI_ENTRY, + CSI_PARAM, + CSI_INTERMEDIATE, + CSI_IGNORE, + DCS_ENTRY, + DCS_INTERMEDIATE, + DCS_PARAM, + DCS_PASSTHROUGH, + DCS_IGNORE, + SOSPMAPC_STRING, + OSC_STRING, + VT52_DIRECT_CURSOR_ADDRESS + } + + /** + * Current scanning state. + */ + private ScanState scanState; + + /** + * 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 + } + + /** + * Physical display width. We start at 80x24, but the user can resize us + * bigger/smaller. + */ + private int width; + + /** + * Get the display width. + * + * @return the width (usually 80 or 132) + */ + public final int getWidth() { + return width; + } + + /** + * Physical display height. We start at 80x24, but the user can resize + * us bigger/smaller. + */ + private int height; + + /** + * Get the display height. + * + * @return the height (usually 24) + */ + public final int getHeight() { + return 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 char 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; + + /** + * Get visible cursor flag. + * + * @return if true, the cursor is visible + */ + public final boolean visibleCursor() { + return cursorVisible; + } + + /** + * 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 = ""; + + /** + * 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; + } + + /** + * Array of flags that have come in, e.g. '?' (DEC private mode), '=', + * '>' (<), ... + */ + private List csiFlags; + + /** + * Parameter characters being collected. + */ + private List csiParams; + + /** + * Non-csi collect buffer. + */ + private List collectBuffer; + + /** + * When true, use the G1 character set. + */ + private boolean shiftOut = false; + + /** + * Horizontal tab stop locations. + */ + private List 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. + */ + 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; + + /** + * 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(); + } + } + + /** + * The current terminal state. + */ + private SaveableState currentState; + + /** + * The last saved terminal state. + */ + private SaveableState savedState; + + /** + * Clear the CSI parameters and flags. + */ + private void toGround() { + csiParams.clear(); + csiFlags.clear(); + collectBuffer.clear(); + scanState = ScanState.GROUND; + } + + /** + * Reset the tab stops list. + */ + private void resetTabStops() { + tabStops.clear(); + for (int i = 0; (i * 8) <= rightMargin; i++) { + tabStops.add(new Integer(i * 8)); + } + } + + /** + * 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; + + // 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; + + // Tab stops + resetTabStops(); + + // Clear CSI stuff + toGround(); + } + + /** + * 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, inputStrem 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. + * @throws UnsupportedEncodingException if an exception is thrown when + * creating the InputStreamReader + */ + public ECMA48(final DeviceType type, final InputStream inputStream, + final OutputStream outputStream) throws UnsupportedEncodingException { + + assert (inputStream != null); + assert (outputStream != null); + + csiFlags = new ArrayList(); + csiParams = new ArrayList(); + collectBuffer = new ArrayList(); + tabStops = new ArrayList(); + scrollback = new LinkedList(); + display = new LinkedList(); + + this.type = type; + this.inputStream = inputStream; + if (type == DeviceType.XTERM) { + this.input = new InputStreamReader(inputStream, "UTF-8"); + this.output = new OutputStreamWriter(outputStream, "UTF-8"); + this.outputStream = null; + } else { + this.output = null; + this.outputStream = outputStream; + } + + 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(); + } + + /** + * 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)); + display.remove(0); + 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() { + int i; + + 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 char ch) { + int rightMargin = this.rightMargin; + + // 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); + // 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 keyboard press to a VT100, VT220, or XTERM sequence and + * send to the remote side. + * + * @param keypress keypress received from the local user + */ + public void keypress(final TKeypress keypress) { + writeRemote(keypressToString(keypress)); + } + + /** + * 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 + */ + private String keypressToString(final TKeypress keypress) { + + if ((fullDuplex == false) && (!keypress.getIsKey())) { + /* + * If this is a control character, process it like it came from + * the remote side. + */ + if (keypress.getCh() < 0x20) { + handleControlChar(keypress.getCh()); + } else { + // Local echo for everything else + printCharacter(keypress.getCh()); + } + } + + if ((newLineMode == true) && (keypress.equals(kbEnter))) { + // NLM: send CRLF + return "\015\012"; + } + + // Handle control characters + if ((keypress.getCtrl()) && (!keypress.getIsKey())) { + StringBuilder sb = new StringBuilder(); + char ch = keypress.getCh(); + ch -= 0x40; + sb.append(ch); + return sb.toString(); + } + + // Handle alt characters + if ((keypress.getAlt()) && (!keypress.getIsKey())) { + StringBuilder sb = new StringBuilder("\033"); + char ch = keypress.getCh(); + sb.append(ch); + return sb.toString(); + } + + if (keypress.equals(kbBackspace)) { + switch (type) { + case VT100: + return "\010"; + case VT102: + return "\010"; + case VT220: + return "\177"; + case XTERM: + return "\177"; + } + } + + if (keypress.equals(kbLeft)) { + switch (arrowKeyMode) { + case ANSI: + return "\033[D"; + case VT52: + return "\033D"; + case VT100: + return "\033OD"; + } + } + + if (keypress.equals(kbRight)) { + switch (arrowKeyMode) { + case ANSI: + return "\033[C"; + case VT52: + return "\033C"; + case VT100: + return "\033OC"; + } + } + + if (keypress.equals(kbUp)) { + switch (arrowKeyMode) { + case ANSI: + return "\033[A"; + case VT52: + return "\033A"; + case VT100: + return "\033OA"; + } + } + + if (keypress.equals(kbDown)) { + switch (arrowKeyMode) { + case ANSI: + return "\033[B"; + case VT52: + return "\033B"; + case VT100: + return "\033OB"; + } + } + + if (keypress.equals(kbHome)) { + switch (arrowKeyMode) { + case ANSI: + return "\033[H"; + case VT52: + return "\033H"; + case VT100: + return "\033OH"; + } + } + + if (keypress.equals(kbEnd)) { + 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"; + } + return "\033O2P"; + } + + if (keypress.equals(kbShiftF2)) { + // Shifted PF2 + if (vt52Mode) { + return "\0332Q"; + } + return "\033O2Q"; + } + + if (keypress.equals(kbShiftF3)) { + // Shifted PF3 + if (vt52Mode) { + return "\0332R"; + } + return "\033O2R"; + } + + if (keypress.equals(kbShiftF4)) { + // Shifted PF4 + if (vt52Mode) { + return "\0332S"; + } + 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"; + } + return "\033O5P"; + } + + if (keypress.equals(kbCtrlF2)) { + // Control PF2 + if (vt52Mode) { + return "\0335Q"; + } + return "\033O5Q"; + } + + if (keypress.equals(kbCtrlF3)) { + // Control PF3 + if (vt52Mode) { + return "\0335R"; + } + return "\033O5R"; + } + + if (keypress.equals(kbCtrlF4)) { + // Control PF4 + if (vt52Mode) { + return "\0335S"; + } + 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.equals(kbPgUp)) { + // Page Up + return "\033[5~"; + } + + if (keypress.equals(kbPgDn)) { + // Page Down + return "\033[6~"; + } + + if (keypress.equals(kbIns)) { + // Ins + return "\033[2~"; + } + + if (keypress.equals(kbShiftIns)) { + // This is what xterm sends for SHIFT-INS + return "\033[2;2~"; + // This is what xterm sends for CTRL-INS + // return "\033[2;5~"; + } + + if (keypress.equals(kbShiftDel)) { + // This is what xterm sends for SHIFT-DEL + return "\033[3;2~"; + // This is what xterm sends for CTRL-DEL + // return "\033[3;5~"; + } + + if (keypress.equals(kbDel)) { + // Delete sends real delete for VTxxx + return "\177"; + // return "\033[3~"; + } + + 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"; + } + + // Non-alt, non-ctrl characters + if (!keypress.getIsKey()) { + StringBuilder sb = new StringBuilder(); + sb.append(keypress.getCh()); + 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 char 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 char mapCharacter(final char 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: + assert (false); + + case G2_GR: + assert (false); + + case G3_GR: + assert (false); + + 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: + assert (false); + + case G3_GL: + assert (false); + + 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 displayTop = display.subList(0, regionTop); + List displayBottom = display.subList(regionBottom + 1, + display.size()); + List displayMiddle = display.subList(regionBottom + 1 + - remaining, regionBottom + 1); + display = new LinkedList(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 displayTop = display.subList(0, regionTop); + List displayBottom = display.subList(regionBottom + 1, + display.size()); + List displayMiddle = display.subList(regionTop, + regionTop + remaining); + display = new LinkedList(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.add(new Character(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(new Integer(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.add(new Integer(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. value is 'true' for set ('h'), false for reset + * ('l'). + */ + private void setToggle(final boolean value) { + boolean decPrivateModeFlag = false; + for (Character ch: collectBuffer) { + if (ch == '?') { + decPrivateModeFlag = true; + } + } + + 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; + 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; + + 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(); + newCell.setChar('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 (Character ch: collectBuffer) { + if (ch == '?') { + decPrivateModeFlag = true; + } + } + + 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 (Character ch: collectBuffer) { + if (ch == '?') { + decPrivateModeFlag = true; + } + } + + 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; + } + + for (Integer i: csiParams) { + + 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; + + 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); + break; + case 31: + // Set red foreground + currentState.attr.setForeColor(Color.RED); + break; + case 32: + // Set green foreground + currentState.attr.setForeColor(Color.GREEN); + break; + case 33: + // Set yellow foreground + currentState.attr.setForeColor(Color.YELLOW); + break; + case 34: + // Set blue foreground + currentState.attr.setForeColor(Color.BLUE); + break; + case 35: + // Set magenta foreground + currentState.attr.setForeColor(Color.MAGENTA); + break; + case 36: + // Set cyan foreground + currentState.attr.setForeColor(Color.CYAN); + break; + case 37: + // Set white foreground + currentState.attr.setForeColor(Color.WHITE); + break; + case 38: + // 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); + break; + case 40: + // Set black background + currentState.attr.setBackColor(Color.BLACK); + break; + case 41: + // Set red background + currentState.attr.setBackColor(Color.RED); + break; + case 42: + // Set green background + currentState.attr.setBackColor(Color.GREEN); + break; + case 43: + // Set yellow background + currentState.attr.setBackColor(Color.YELLOW); + break; + case 44: + // Set blue background + currentState.attr.setBackColor(Color.BLUE); + break; + case 45: + // Set magenta background + currentState.attr.setBackColor(Color.MAGENTA); + break; + case 46: + // Set cyan background + currentState.attr.setBackColor(Color.CYAN); + break; + case 47: + // Set white background + currentState.attr.setBackColor(Color.WHITE); + break; + case 49: + // Default background + currentState.attr.setBackColor(Color.BLACK); + break; + + default: + break; + } + } + } + + /** + * DA - Device attributes. + */ + private void da() { + int extendedFlag = 0; + int i = 0; + Character [] chars = collectBuffer.toArray(new Character[0]); + StringBuilder args = new StringBuilder(); + for (int j = 1; j < chars.length; j++) { + args.append(chars[j]); + } + + if (chars.length > 0) { + if (chars[0] == '>') { + extendedFlag = 1; + if (chars.length >= 2) { + i = Integer.parseInt(args.toString()); + } + } else if (chars[0] == '=') { + extendedFlag = 2; + if (chars.length >= 2) { + i = Integer.parseInt(args.toString()); + } + } 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() { + 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; + + for (Character ch: collectBuffer) { + if (ch == '?') { + decPrivateModeFlag = true; + } + } + + 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. + String str = ""; + if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) + && (s8c1t == true) + ) { + str = String.format("\u009b%d;%dR", + currentState.cursorY + 1, currentState.cursorX + 1); + } else { + str = String.format("\033[%d;%dR", + currentState.cursorY + 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 newStops = new ArrayList(); + 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).getProtect()))) { + + 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 (Character ch: collectBuffer) { + if (ch == '?') { + decPrivateModeFlag = true; + } + } + + 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) { + // Collect first + collectBuffer.add(new Character(xtermChar)); + + // Xterm cases... + if (xtermChar == 0x07) { + Character [] chars = collectBuffer.toArray(new Character[0]); + StringBuilder args = new StringBuilder(); + for (int j = 0; j < chars.length - 1; j++) { + args.append(chars[j]); + } + String [] p = args.toString().split(";"); + if (p.length > 0) { + if ((p[0].equals("0")) || (p[0].equals("2"))) { + if (p.length > 1) { + // Screen title + screenTitle = p[1]; + } + } + } + + // Go to SCAN_GROUND state + toGround(); + return; + } + } + + /** + * Run this input character through the ECMA48 state machine. + * + * @param ch character from the remote side + */ + public void consume(char ch) { + + // DEBUG + // System.err.printf("%c", ch); + + // Special case for VT10x: 7-bit characters only + if ((type == DeviceType.VT100) || (type == DeviceType.VT102)) { + ch = (char)(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) + && (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(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(ch); + return; + } + + // 20-2F --> collect, then switch to ESCAPE_INTERMEDIATE + if ((ch >= 0x20) && (ch <= 0x2F)) { + collect(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(ch); + } + + // 20-2F --> collect + if ((ch >= 0x20) && (ch <= 0x2F)) { + collect(ch); + } + + // 30-7E --> dispatch, then switch to GROUND + if ((ch >= 0x30) && (ch <= 0x7E)) { + switch (ch) { + case '0': + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> Special graphics + currentState.g0Charset = CharacterSet.DRAWING; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> Special graphics + currentState.g1Charset = CharacterSet.DRAWING; + } + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> Special graphics + currentState.g2Charset = CharacterSet.DRAWING; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> Special graphics + currentState.g3Charset = CharacterSet.DRAWING; + } + } + break; + case '1': + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> Alternate character ROM standard character set + currentState.g0Charset = CharacterSet.ROM; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> Alternate character ROM standard character set + currentState.g1Charset = CharacterSet.ROM; + } + break; + case '2': + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> Alternate character ROM special graphics + currentState.g0Charset = CharacterSet.ROM_SPECIAL; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> Alternate character ROM special graphics + currentState.g1Charset = CharacterSet.ROM_SPECIAL; + } + break; + case '3': + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '#')) { + // DECDHL - Double-height line (top half) + dechdl(true); + } + break; + case '4': + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '#')) { + // DECDHL - Double-height line (bottom half) + dechdl(false); + } + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> DUTCH + currentState.g0Charset = CharacterSet.NRC_DUTCH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> DUTCH + currentState.g1Charset = CharacterSet.NRC_DUTCH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> DUTCH + currentState.g2Charset = CharacterSet.NRC_DUTCH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> DUTCH + currentState.g3Charset = CharacterSet.NRC_DUTCH; + } + } + break; + case '5': + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '#')) { + // DECSWL - Single-width line + decswl(); + } + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> FINNISH + currentState.g0Charset = CharacterSet.NRC_FINNISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> FINNISH + currentState.g1Charset = CharacterSet.NRC_FINNISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> FINNISH + currentState.g2Charset = CharacterSet.NRC_FINNISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> FINNISH + currentState.g3Charset = CharacterSet.NRC_FINNISH; + } + } + break; + case '6': + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '#')) { + // DECDWL - Double-width line + decdwl(); + } + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> NORWEGIAN + currentState.g0Charset = CharacterSet.NRC_NORWEGIAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> NORWEGIAN + currentState.g1Charset = CharacterSet.NRC_NORWEGIAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> NORWEGIAN + currentState.g2Charset = CharacterSet.NRC_NORWEGIAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> NORWEGIAN + currentState.g3Charset = CharacterSet.NRC_NORWEGIAN; + } + } + break; + case '7': + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> SWEDISH + currentState.g0Charset = CharacterSet.NRC_SWEDISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> SWEDISH + currentState.g1Charset = CharacterSet.NRC_SWEDISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> SWEDISH + currentState.g2Charset = CharacterSet.NRC_SWEDISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> SWEDISH + currentState.g3Charset = CharacterSet.NRC_SWEDISH; + } + } + break; + case '8': + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '#')) { + // DECALN - Screen alignment display + decaln(); + } + break; + case '9': + case ':': + case ';': + break; + case '<': + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> DEC_SUPPLEMENTAL + currentState.g0Charset = CharacterSet.DEC_SUPPLEMENTAL; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> DEC_SUPPLEMENTAL + currentState.g1Charset = CharacterSet.DEC_SUPPLEMENTAL; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> DEC_SUPPLEMENTAL + currentState.g2Charset = CharacterSet.DEC_SUPPLEMENTAL; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> DEC_SUPPLEMENTAL + currentState.g3Charset = CharacterSet.DEC_SUPPLEMENTAL; + } + } + break; + case '=': + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> SWISS + currentState.g0Charset = CharacterSet.NRC_SWISS; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> SWISS + currentState.g1Charset = CharacterSet.NRC_SWISS; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> SWISS + currentState.g2Charset = CharacterSet.NRC_SWISS; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> SWISS + currentState.g3Charset = CharacterSet.NRC_SWISS; + } + } + break; + case '>': + case '?': + case '@': + break; + case 'A': + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> United Kingdom set + currentState.g0Charset = CharacterSet.UK; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> United Kingdom set + currentState.g1Charset = CharacterSet.UK; + } + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> United Kingdom set + currentState.g2Charset = CharacterSet.UK; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> United Kingdom set + currentState.g3Charset = CharacterSet.UK; + } + } + break; + case 'B': + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> ASCII set + currentState.g0Charset = CharacterSet.US; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> ASCII set + currentState.g1Charset = CharacterSet.US; + } + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> ASCII + currentState.g2Charset = CharacterSet.US; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> ASCII + currentState.g3Charset = CharacterSet.US; + } + } + break; + case 'C': + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> FINNISH + currentState.g0Charset = CharacterSet.NRC_FINNISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> FINNISH + currentState.g1Charset = CharacterSet.NRC_FINNISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> FINNISH + currentState.g2Charset = CharacterSet.NRC_FINNISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> FINNISH + currentState.g3Charset = CharacterSet.NRC_FINNISH; + } + } + break; + case 'D': + break; + case 'E': + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> NORWEGIAN + currentState.g0Charset = CharacterSet.NRC_NORWEGIAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> NORWEGIAN + currentState.g1Charset = CharacterSet.NRC_NORWEGIAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> NORWEGIAN + currentState.g2Charset = CharacterSet.NRC_NORWEGIAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> NORWEGIAN + currentState.g3Charset = CharacterSet.NRC_NORWEGIAN; + } + } + break; + case 'F': + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ' ')) { + // S7C1T + s8c1t = false; + } + } + break; + case 'G': + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ' ')) { + // S8C1T + s8c1t = true; + } + } + break; + case 'H': + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> SWEDISH + currentState.g0Charset = CharacterSet.NRC_SWEDISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> SWEDISH + currentState.g1Charset = CharacterSet.NRC_SWEDISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> SWEDISH + currentState.g2Charset = CharacterSet.NRC_SWEDISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(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.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> GERMAN + currentState.g0Charset = CharacterSet.NRC_GERMAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> GERMAN + currentState.g1Charset = CharacterSet.NRC_GERMAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> GERMAN + currentState.g2Charset = CharacterSet.NRC_GERMAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(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.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> FRENCH_CA + currentState.g0Charset = CharacterSet.NRC_FRENCH_CA; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> FRENCH_CA + currentState.g1Charset = CharacterSet.NRC_FRENCH_CA; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> FRENCH_CA + currentState.g2Charset = CharacterSet.NRC_FRENCH_CA; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> FRENCH_CA + currentState.g3Charset = CharacterSet.NRC_FRENCH_CA; + } + } + break; + case 'R': + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> FRENCH + currentState.g0Charset = CharacterSet.NRC_FRENCH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> FRENCH + currentState.g1Charset = CharacterSet.NRC_FRENCH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> FRENCH + currentState.g2Charset = CharacterSet.NRC_FRENCH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(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.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> ITALIAN + currentState.g0Charset = CharacterSet.NRC_ITALIAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> ITALIAN + currentState.g1Charset = CharacterSet.NRC_ITALIAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> ITALIAN + currentState.g2Charset = CharacterSet.NRC_ITALIAN; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '+')) { + // G3 --> ITALIAN + currentState.g3Charset = CharacterSet.NRC_ITALIAN; + } + } + break; + case 'Z': + if ((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) { + + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '(')) { + // G0 --> SPANISH + currentState.g0Charset = CharacterSet.NRC_SPANISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == ')')) { + // G1 --> SPANISH + currentState.g1Charset = CharacterSet.NRC_SPANISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(0) == '*')) { + // G2 --> SPANISH + currentState.g2Charset = CharacterSet.NRC_SPANISH; + } + if ((collectBuffer.size() == 1) + && (collectBuffer.get(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(ch); + } + + // 20-2F --> collect, then switch to CSI_INTERMEDIATE + if ((ch >= 0x20) && (ch <= 0x2F)) { + collect(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(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) { + 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': + 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(ch); + } + + // 20-2F --> collect, then switch to CSI_INTERMEDIATE + if ((ch >= 0x20) && (ch <= 0x2F)) { + collect(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) { + 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': + case 't': + 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(ch); + } + + // 20-2F --> collect + if ((ch >= 0x20) && (ch <= 0x2F)) { + collect(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.get(collectBuffer.size() - 1) == '\"') + ) { + // DECSCL - compatibility level + decscl(); + } + if ((type == DeviceType.XTERM) + && (collectBuffer.get(collectBuffer.size() - 1) == '!') + ) { + // DECSTR - Soft terminal reset + decstr(); + } + break; + case 'q': + if (((type == DeviceType.VT220) + || (type == DeviceType.XTERM)) + && (collectBuffer.get(collectBuffer.size() - 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(ch); + } + + // 20-2F --> collect + if ((ch >= 0x20) && (ch <= 0x2F)) { + collect(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(ch); + } + if (ch == 0x5C) { + if ((collectBuffer.size() > 0) + && (collectBuffer.get(collectBuffer.size() - 1) == 0x1B)) { + toGround(); + } + } + + // 20-2F --> collect, then switch to DCS_INTERMEDIATE + if ((ch >= 0x20) && (ch <= 0x2F)) { + collect(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(ch); + scanState = ScanState.DCS_PARAM; + } + + // 00-17, 19, 1C-1F, 7F --> ignore + + // 0x3A goes to DCS_IGNORE + if (ch == 0x3F) { + scanState = ScanState.DCS_IGNORE; + } + + // 0x40-7E goes to DCS_PASSTHROUGH + if ((ch >= 0x40) && (ch <= 0x7E)) { + 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(ch); + } + if (ch == 0x5C) { + if ((collectBuffer.size() > 0) && + (collectBuffer.get(collectBuffer.size() - 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(ch); + } + if (ch == 0x5C) { + if ((collectBuffer.size() > 0) && + (collectBuffer.get(collectBuffer.size() - 1) == 0x1B)) { + toGround(); + } + } + + // 20-2F --> collect, then switch to DCS_INTERMEDIATE + if ((ch >= 0x20) && (ch <= 0x2F)) { + collect(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; + } + + // 0x40-7E goes to DCS_PASSTHROUGH + if ((ch >= 0x40) && (ch <= 0x7E)) { + 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(ch); + } + if (ch == 0x5C) { + if ((collectBuffer.size() > 0) + && (collectBuffer.get(collectBuffer.size() - 1) == 0x1B) + ) { + toGround(); + } + } + + // 00-17, 19, 1C-1F, 20-7E --> put + // TODO + if (ch <= 0x17) { + return; + } + if (ch == 0x19) { + return; + } + if ((ch >= 0x1C) && (ch <= 0x1F)) { + return; + } + if ((ch >= 0x20) && (ch <= 0x7E)) { + 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 SOSPMAPC_STRING: + // 00-17, 19, 1C-1F, 20-7F --> ignore + + // 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)) { + oscPut(ch); + } + + // 00-17, 19, 1C-1F --> ignore + + // 20-7F --> osc_put + if ((ch >= 0x20) && (ch <= 0x7F)) { + oscPut(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.size() == 0) { + collect(ch); + } else if (collectBuffer.size() == 1) { + // We've got the two characters, one in the buffer and the + // other in ch. + cursorPosition(collectBuffer.get(0) - '\040', ch - '\040'); + toGround(); + } + return; + } + + } + + /** + * Expose current cursor X to outside world. + * + * @return current cursor X + */ + public final int getCursorX() { + return currentState.cursorX; + } + + /** + * Expose current cursor Y to outside world. + * + * @return current cursor Y + */ + public final int getCursorY() { + return currentState.cursorY; + } + + /** + * Read function runs on a separate thread. + */ + public 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[128]; + } else { + readBuffer = new byte[128]; + } + + while (!done && !stopReaderThread) { + try { + // We assume that if inputStream has bytes available, then + // input won't block on read(). + int n = inputStream.available(); + if (n > 0) { + // 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 newSize = Math.max(readBufferUTF8.length * 2, n); + + readBufferUTF8 = new char[newSize]; + } + } else { + if (readBuffer.length < n) { + // The buffer wasn't big enough, make it huger + int newSize = Math.max(readBuffer.length * 2, n); + readBuffer = new byte[newSize]; + } + } + + int rc = -1; + if (utf8) { + rc = input.read(readBufferUTF8, 0, n); + } else { + rc = inputStream.read(readBuffer, 0, n); + } + // System.err.printf("read() %d\n", rc); System.err.flush(); + if (rc == -1) { + // This is EOF + done = true; + } else { + for (int i = 0; i < rc; i++) { + int ch = 0; + if (utf8) { + ch = readBufferUTF8[i]; + } else { + ch = readBuffer[i]; + } + // Don't step on UI events + synchronized (this) { + consume((char)ch); + } + } + } + } else { + // Wait 10 millis for more data + Thread.sleep(10); + } + // System.err.println("end while loop"); System.err.flush(); + } catch (InterruptedException e) { + // SQUASH + } catch (IOException e) { + e.printStackTrace(); + done = true; + } + } // while ((done == false) && (stopReaderThread == false)) + + // Close the input stream + try { + if (utf8) { + input.close(); + input = null; + inputStream = null; + } else { + inputStream.close(); + inputStream = null; + } + } catch (IOException e) { + e.printStackTrace(); + } + + // Let the rest of the world know that I am done. + stopReaderThread = true; + + // System.err.println("*** run() exiting..."); System.err.flush(); + } + +} diff --git a/src/jexer/tterminal/package-info.java b/src/jexer/tterminal/package-info.java new file mode 100644 index 0000000..44f4428 --- /dev/null +++ b/src/jexer/tterminal/package-info.java @@ -0,0 +1,35 @@ +/* + * Jexer - Java Text User Interface + * + * License: LGPLv3 or later + * + * This module is licensed under the GNU Lesser General Public License + * Version 3. Please see the file "COPYING" in this directory for more + * information about the GNU Lesser General Public License Version 3. + * + * Copyright (C) 2015 Kevin Lamonte + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see + * http://www.gnu.org/licenses/, or write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + * @author Kevin Lamonte [kevin.lamonte@gmail.com] + * @version 1 + */ + +/** + * An ECMA-48 / ANSI X3.64 style terminal emulator. + */ +package jexer.tterminal; -- 2.27.0