Mercurial > 510Connectbot
diff app/src/main/java/de/mud/terminal/vt320.java @ 438:d29cce60f393
migrate from Eclipse to Android Studio
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Thu, 03 Dec 2015 11:23:55 -0800 |
| parents | src/de/mud/terminal/vt320.java@2a7199ad90be |
| children | f698820bffdf |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/app/src/main/java/de/mud/terminal/vt320.java Thu Dec 03 11:23:55 2015 -0800 @@ -0,0 +1,3423 @@ +/* + * This file is part of "JTA - Telnet/SSH for the JAVA(tm) platform". + * + * (c) Matthias L. Jugel, Marcus Meiner 1996-2005. All Rights Reserved. + * + * Please visit http://javatelnet.org/ for updates and contact. + * + * --LICENSE NOTICE-- + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * 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 General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * --LICENSE NOTICE-- + * + */ + +package de.mud.terminal; + +import android.text.AndroidCharacter; + +import java.util.Properties; + +/** + * Implementation of a VT terminal emulation plus ANSI compatible. + * <P> + * <B>Maintainer:</B> Marcus Meißner + * + * @version $Id: vt320.java 507 2005-10-25 10:14:52Z marcus $ + * @author Matthias L. Jugel, Marcus Meißner + */ +public abstract class vt320 extends VDUBuffer implements VDUInput { + + /** the debug level */ + private final static int debug = 0; + private StringBuilder debugStr; + public abstract void debug(String notice); + + /** + * Write an answer back to the remote host. This is needed to be able to + * send terminal answers requests like status and type information. + * @param b the array of bytes to be sent + */ + public abstract void write(byte[] b); + + /** + * Write an answer back to the remote host. This is needed to be able to + * send terminal answers requests like status and type information. + * @param b the byte to be sent + */ + public abstract void write(int b); + + /** + * No more bytes to read from the transport, hook here to test screen changes + */ + public void testChanged() { + /* do nothing by default */ + } + + /** + * inject field contents as if typed + */ + public void setField(int l, int c, char [] d) { + // ignore line and column, just send the bytes to the host. + int n = d.length; + byte [] b = new byte [n]; + + for (int i = 0; i < n; i++) b[i] = (byte)(d[i] & 0x00ff); + + write(b); + } + + public void monitorKey(boolean down) { + // do nothing + } + + public void keyDepressed(int keyCode, char keyChar, int modifiers) { + keyPressed(keyCode, keyChar, modifiers); + } + + /** + * Play the beep sound ... + */ + public void beep() { + /* do nothing by default */ + } + + public void redrawPassthru() { + redraw(); // VDUBuffer.redraw is protected + } + + /** + * Convenience function for putString(char[], int, int) + */ + public void putString(String s) { + int len = s.length(); + char[] tmp = new char[len]; + s.getChars(0, len, tmp, 0); + putString(tmp, null, 0, len); + } + + /** + * Put string at current cursor position. Moves cursor + * according to the String. Does NOT wrap. + * @param s character array + * @param start place to start in array + * @param len number of characters to process + */ + public void putString(char[] s, byte[] fullwidths, int start, int len) { + if (len > 0) { + //markLine(R, 1); + int lastChar = -1; + char c; + boolean isWide = false; + + for (int i = 0; i < len; i++) { + c = s[start + i]; + + // Shortcut for my favorite ASCII + if (c <= 0x7F) { + if (lastChar != -1) + putChar((char) lastChar, isWide, false); + + lastChar = c; + isWide = false; + } + else if (!Character.isLowSurrogate(c) && !Character.isHighSurrogate(c)) { + if (Character.getType(c) == Character.NON_SPACING_MARK) { + if (lastChar != -1) { + char nc = Precomposer.precompose((char) lastChar, c); + putChar(nc, isWide, false); + lastChar = -1; + } + } + else { + if (lastChar != -1) + putChar((char) lastChar, isWide, false); + + lastChar = c; + + if (fullwidths != null) { + final byte width = fullwidths[i]; + isWide = (width == AndroidCharacter.EAST_ASIAN_WIDTH_WIDE) + || (width == AndroidCharacter.EAST_ASIAN_WIDTH_FULL_WIDTH); + } + } + } + } + + if (lastChar != -1) + putChar((char) lastChar, isWide, false); + + setCursorPosition(C, R); + redraw(); + } + } + + protected void sendTelnetCommand(byte cmd) { + /* do nothing by default */ + } + + /** + * Sent the changed window size from the terminal to all listeners. + */ + protected void setWindowSize(int c, int r) { + /* To be overridden by Terminal.java */ + } + + @Override + public void setScreenSize(int c, int r, boolean broadcast) { + int oldrows = height; + + if (debug > 2) { + if (debugStr == null) + debugStr = new StringBuilder(); + + debugStr.append("setscreensize (") + .append(c) + .append(',') + .append(r) + .append(',') + .append(broadcast) + .append(')'); + debug(debugStr.toString()); + debugStr.setLength(0); + } + + super.setScreenSize(c, r, false); + boolean cursorChanged = false; + + // Don't let the cursor go off the screen. + if (C >= c) { + C = c - 1; + cursorChanged = true; + } + + if (R >= r) { + R = r - 1; + cursorChanged = true; + } + + if (cursorChanged) { + setCursorPosition(C, R); + redraw(); + } + + if (broadcast) { + setWindowSize(c, r); /* broadcast up */ + } + } + + + /** + * Create a new vt320 terminal and intialize it with useful settings. + */ + public vt320(int width, int height) { + super(width, height); + debugStr = new StringBuilder(); + setVMS(false); + setIBMCharset(false); + setTerminalID("vt320"); + setBufferSize(100); + //setBorder(2, false); + gx = new char[4]; + reset(); + /* top row of numpad */ + PF1 = "\u001bOP"; + PF2 = "\u001bOQ"; + PF3 = "\u001bOR"; + PF4 = "\u001bOS"; + /* the 3x2 keyblock on PC keyboards */ + Insert = new String[4]; + Remove = new String[4]; + KeyHome = new String[4]; + KeyEnd = new String[4]; + NextScn = new String[4]; + PrevScn = new String[4]; + Escape = new String[4]; + BackSpace = new String[4]; + TabKey = new String[4]; + Insert[0] = Insert[1] = Insert[2] = Insert[3] = "\u001b[2~"; + Remove[0] = Remove[1] = Remove[2] = Remove[3] = "\u001b[3~"; + PrevScn[0] = PrevScn[1] = PrevScn[2] = PrevScn[3] = "\u001b[5~"; + NextScn[0] = NextScn[1] = NextScn[2] = NextScn[3] = "\u001b[6~"; + KeyHome[0] = KeyHome[1] = KeyHome[2] = KeyHome[3] = "\u001b[H"; + KeyEnd[0] = KeyEnd[1] = KeyEnd[2] = KeyEnd[3] = "\u001b[F"; + Escape[0] = Escape[1] = Escape[2] = Escape[3] = "\u001b"; + + if (vms) { + BackSpace[1] = "" + (char) 10; // VMS shift deletes word back + BackSpace[2] = "\u0018"; // VMS control deletes line back + BackSpace[0] = BackSpace[3] = "\u007f"; // VMS other is delete + } + else { + //BackSpace[0] = BackSpace[1] = BackSpace[2] = BackSpace[3] = "\b"; + // ConnectBot modifications. + BackSpace[0] = "\b"; + BackSpace[1] = "\u007f"; + BackSpace[2] = "\u001b[3~"; + BackSpace[3] = "\u001b[2~"; + } + + /* some more VT100 keys */ + Find = "\u001b[1~"; + Select = "\u001b[4~"; + Help = "\u001b[28~"; + Do = "\u001b[29~"; + FunctionKey = new String[21]; + FunctionKey[0] = ""; + FunctionKey[1] = PF1; + FunctionKey[2] = PF2; + FunctionKey[3] = PF3; + FunctionKey[4] = PF4; + /* following are defined differently for vt220 / vt132 ... */ + FunctionKey[5] = "\u001b[15~"; + FunctionKey[6] = "\u001b[17~"; + FunctionKey[7] = "\u001b[18~"; + FunctionKey[8] = "\u001b[19~"; + FunctionKey[9] = "\u001b[20~"; + FunctionKey[10] = "\u001b[21~"; + FunctionKey[11] = "\u001b[23~"; + FunctionKey[12] = "\u001b[24~"; + FunctionKey[13] = "\u001b[25~"; + FunctionKey[14] = "\u001b[26~"; + FunctionKey[15] = Help; + FunctionKey[16] = Do; + FunctionKey[17] = "\u001b[31~"; + FunctionKey[18] = "\u001b[32~"; + FunctionKey[19] = "\u001b[33~"; + FunctionKey[20] = "\u001b[34~"; + FunctionKeyShift = new String[21]; + FunctionKeyAlt = new String[21]; + FunctionKeyCtrl = new String[21]; + + for (int i = 0; i < 20; i++) { + FunctionKeyShift[i] = ""; + FunctionKeyAlt[i] = ""; + FunctionKeyCtrl[i] = ""; + } + + FunctionKeyShift[15] = Find; + FunctionKeyShift[16] = Select; + TabKey[0] = "\u0009"; + TabKey[1] = "\u001bOP\u0009"; + TabKey[2] = TabKey[3] = ""; + KeyUp = new String[4]; + KeyUp[0] = "\u001b[A"; + KeyDown = new String[4]; + KeyDown[0] = "\u001b[B"; + KeyRight = new String[4]; + KeyRight[0] = "\u001b[C"; + KeyLeft = new String[4]; + KeyLeft[0] = "\u001b[D"; + Numpad = new String[10]; + Numpad[0] = "\u001bOp"; + Numpad[1] = "\u001bOq"; + Numpad[2] = "\u001bOr"; + Numpad[3] = "\u001bOs"; + Numpad[4] = "\u001bOt"; + Numpad[5] = "\u001bOu"; + Numpad[6] = "\u001bOv"; + Numpad[7] = "\u001bOw"; + Numpad[8] = "\u001bOx"; + Numpad[9] = "\u001bOy"; + KPMinus = PF4; + KPComma = "\u001bOl"; + KPPeriod = "\u001bOn"; + KPEnter = "\u001bOM"; + NUMPlus = new String[4]; + NUMPlus[0] = "+"; + NUMDot = new String[4]; + NUMDot[0] = "."; + } + + public void setBackspace(int type) { + switch (type) { + case DELETE_IS_DEL: + BackSpace[0] = "\u007f"; + BackSpace[1] = "\b"; + break; + + case DELETE_IS_BACKSPACE: + BackSpace[0] = "\b"; + BackSpace[1] = "\u007f"; + break; + } + } + + /** + * Create a default vt320 terminal with 80 columns and 24 lines. + */ + public vt320() { + this(80, 24); + } + + /** + * Terminal is mouse-aware and requires (x,y) coordinates of + * on the terminal (character coordinates) and the button clicked. + * @param x + * @param y + * @param modifiers + */ + public void mousePressed(int x, int y, int modifiers) { + if (mouserpt == 0) + return; + + int mods = modifiers; + mousebut = 3; + + if ((mods & 16) == 16) mousebut = 0; + + if ((mods & 8) == 8) mousebut = 1; + + if ((mods & 4) == 4) mousebut = 2; + + int mousecode; + + if (mouserpt == 9) /* X10 Mouse */ + mousecode = 0x20 | mousebut; + else /* normal xterm mouse reporting */ + mousecode = mousebut | 0x20 | ((mods & 7) << 2); + + byte b[] = new byte[6]; + b[0] = 27; + b[1] = (byte) '['; + b[2] = (byte) 'M'; + b[3] = (byte) mousecode; + b[4] = (byte)(0x20 + x + 1); + b[5] = (byte)(0x20 + y + 1); + write(b); // FIXME: writeSpecial here + } + + /** + * Terminal is mouse-aware and requires the coordinates and button + * of the release. + * @param x + * @param y + * @param modifiers + */ + public void mouseReleased(int x, int y, int modifiers) { + if (mouserpt == 0) + return; + + /* problem is tht modifiers still have the released button set in them. + int mods = modifiers; + mousebut = 3; + if ((mods & 16)==16) mousebut=0; + if ((mods & 8)==8 ) mousebut=1; + if ((mods & 4)==4 ) mousebut=2; + */ + int mousecode; + + if (mouserpt == 9) + mousecode = 0x20 + mousebut; /* same as press? appears so. */ + else + mousecode = '#'; + + byte b[] = new byte[6]; + b[0] = 27; + b[1] = (byte) '['; + b[2] = (byte) 'M'; + b[3] = (byte) mousecode; + b[4] = (byte)(0x20 + x + 1); + b[5] = (byte)(0x20 + y + 1); + write(b); // FIXME: writeSpecial here + mousebut = 0; + } + + + /** we should do localecho (passed from other modules). false is default */ + private boolean localecho = false; + + /** + * Enable or disable the local echo property of the terminal. + * @param echo true if the terminal should echo locally + */ + public void setLocalEcho(boolean echo) { + localecho = echo; + } + + /** + * Enable the VMS mode of the terminal to handle some things differently + * for VMS hosts. + * @param vms true for vms mode, false for normal mode + */ + public void setVMS(boolean vms) { + this.vms = vms; + } + + /** + * Enable the usage of the IBM character set used by some BBS's. Special + * graphical character are available in this mode. + * @param ibm true to use the ibm character set + */ + public void setIBMCharset(boolean ibm) { + useibmcharset = ibm; + } + + /** + * Override the standard key codes used by the terminal emulation. + * @param codes a properties object containing key code definitions + */ + public void setKeyCodes(Properties codes) { + String res, prefixes[] = {"", "S", "C", "A"}; + int i; + + for (i = 0; i < 10; i++) { + res = codes.getProperty("NUMPAD" + i); + + if (res != null) Numpad[i] = unEscape(res); + } + + for (i = 1; i < 20; i++) { + res = codes.getProperty("F" + i); + + if (res != null) FunctionKey[i] = unEscape(res); + + res = codes.getProperty("SF" + i); + + if (res != null) FunctionKeyShift[i] = unEscape(res); + + res = codes.getProperty("CF" + i); + + if (res != null) FunctionKeyCtrl[i] = unEscape(res); + + res = codes.getProperty("AF" + i); + + if (res != null) FunctionKeyAlt[i] = unEscape(res); + } + + for (i = 0; i < 4; i++) { + res = codes.getProperty(prefixes[i] + "PGUP"); + + if (res != null) PrevScn[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "PGDOWN"); + + if (res != null) NextScn[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "END"); + + if (res != null) KeyEnd[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "HOME"); + + if (res != null) KeyHome[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "INSERT"); + + if (res != null) Insert[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "REMOVE"); + + if (res != null) Remove[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "UP"); + + if (res != null) KeyUp[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "DOWN"); + + if (res != null) KeyDown[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "LEFT"); + + if (res != null) KeyLeft[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "RIGHT"); + + if (res != null) KeyRight[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "ESCAPE"); + + if (res != null) Escape[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "BACKSPACE"); + + if (res != null) BackSpace[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "TAB"); + + if (res != null) TabKey[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "NUMPLUS"); + + if (res != null) NUMPlus[i] = unEscape(res); + + res = codes.getProperty(prefixes[i] + "NUMDECIMAL"); + + if (res != null) NUMDot[i] = unEscape(res); + } + } + + /** + * Set the terminal id used to identify this terminal. + * @param terminalID the id string + */ + public void setTerminalID(String terminalID) { + this.terminalID = terminalID; + + if (terminalID.equals("scoansi")) { + FunctionKey[1] = "\u001b[M"; FunctionKey[2] = "\u001b[N"; + FunctionKey[3] = "\u001b[O"; FunctionKey[4] = "\u001b[P"; + FunctionKey[5] = "\u001b[Q"; FunctionKey[6] = "\u001b[R"; + FunctionKey[7] = "\u001b[S"; FunctionKey[8] = "\u001b[T"; + FunctionKey[9] = "\u001b[U"; FunctionKey[10] = "\u001b[V"; + FunctionKey[11] = "\u001b[W"; FunctionKey[12] = "\u001b[X"; + FunctionKey[13] = "\u001b[Y"; FunctionKey[14] = "?"; + FunctionKey[15] = "\u001b[a"; FunctionKey[16] = "\u001b[b"; + FunctionKey[17] = "\u001b[c"; FunctionKey[18] = "\u001b[d"; + FunctionKey[19] = "\u001b[e"; FunctionKey[20] = "\u001b[f"; + PrevScn[0] = PrevScn[1] = PrevScn[2] = PrevScn[3] = "\u001b[I"; + NextScn[0] = NextScn[1] = NextScn[2] = NextScn[3] = "\u001b[G"; + // more theoretically. + } + } + + public void setAnswerBack(String ab) { + this.answerBack = unEscape(ab); + } + + /** + * Get the terminal id used to identify this terminal. + */ + public String getTerminalID() { + return terminalID; + } + + /** + * A small conveniance method thar converts the string to a byte array + * for sending. + * @param s the string to be sent + */ + private boolean write(String s, boolean doecho) { + if (debug > 2) { + debugStr.append("write(|") + .append(s) + .append("|,") + .append(doecho); + debug(debugStr.toString()); + debugStr.setLength(0); + } + + if (s == null) // aka the empty string. + return true; + + /* NOTE: getBytes() honours some locale, it *CONVERTS* the string. + * However, we output only 7bit stuff towards the target, and *some* + * 8 bit control codes. We must not mess up the latter, so we do hand + * by hand copy. + */ + byte arr[] = new byte[s.length()]; + + for (int i = 0; i < s.length(); i++) { + arr[i] = (byte) s.charAt(i); + } + + write(arr); + + if (doecho) + putString(s); + + return true; + } + + private boolean write(int s, boolean doecho) { + if (debug > 2) { + debugStr.append("write(|") + .append(s) + .append("|,") + .append(doecho); + debug(debugStr.toString()); + debugStr.setLength(0); + } + + write(s); + + // TODO check if character is wide + if (doecho) + putChar((char)s, false, false); + + return true; + } + + private boolean write(String s) { + return write(s, localecho); + } + + // =================================================================== + // the actual terminal emulation code comes here: + // =================================================================== + + private String terminalID = "vt320"; + private String answerBack = "Use Terminal.answerback to set ...\n"; + + // X - COLUMNS, Y - ROWS + int R, C; + int attributes = 0; + + int Sc, Sr, Sa, Stm, Sbm; + char Sgr, Sgl; + char Sgx[]; + + int insertmode = 0; + int statusmode = 0; + boolean vt52mode = false; + boolean keypadmode = false; /* false - numeric, true - application */ + boolean output8bit = false; + int normalcursor = 0; + boolean moveoutsidemargins = true; + boolean wraparound = true; + boolean sendcrlf = true; + boolean capslock = false; + boolean numlock = false; + int mouserpt = 0; + byte mousebut = 0; + + boolean useibmcharset = false; + + int lastwaslf = 0; + boolean usedcharsets = false; + + private final static char ESC = 27; + private final static char IND = 132; + private final static char NEL = 133; + private final static char RI = 141; + private final static char SS2 = 142; + private final static char SS3 = 143; + private final static char DCS = 144; + private final static char HTS = 136; + private final static char CSI = 155; + private final static char OSC = 157; + private final static int TSTATE_DATA = 0; + private final static int TSTATE_ESC = 1; /* ESC */ + private final static int TSTATE_CSI = 2; /* ESC [ */ + private final static int TSTATE_DCS = 3; /* ESC P */ + private final static int TSTATE_DCEQ = 4; /* ESC [? */ + private final static int TSTATE_ESCSQUARE = 5; /* ESC # */ + private final static int TSTATE_OSC = 6; /* ESC ] */ + private final static int TSTATE_SETG0 = 7; /* ESC (? */ + private final static int TSTATE_SETG1 = 8; /* ESC )? */ + private final static int TSTATE_SETG2 = 9; /* ESC *? */ + private final static int TSTATE_SETG3 = 10; /* ESC +? */ + private final static int TSTATE_CSI_DOLLAR = 11; /* ESC [ Pn $ */ + private final static int TSTATE_CSI_EX = 12; /* ESC [ ! */ + private final static int TSTATE_ESCSPACE = 13; /* ESC <space> */ + private final static int TSTATE_VT52X = 14; + private final static int TSTATE_VT52Y = 15; + private final static int TSTATE_CSI_TICKS = 16; + private final static int TSTATE_CSI_EQUAL = 17; /* ESC [ = */ + private final static int TSTATE_TITLE = 18; /* xterm title */ + + /* Keys we support */ + public final static int KEY_PAUSE = 1; + public final static int KEY_F1 = 2; + public final static int KEY_F2 = 3; + public final static int KEY_F3 = 4; + public final static int KEY_F4 = 5; + public final static int KEY_F5 = 6; + public final static int KEY_F6 = 7; + public final static int KEY_F7 = 8; + public final static int KEY_F8 = 9; + public final static int KEY_F9 = 10; + public final static int KEY_F10 = 11; + public final static int KEY_F11 = 12; + public final static int KEY_F12 = 13; + public final static int KEY_F13 = 14; // only used by tn5250 + public final static int KEY_F14 = 15; // only used by tn5250 + public final static int KEY_F15 = 16; // only used by tn5250 + public final static int KEY_F16 = 17; // only used by tn5250 + public final static int KEY_F17 = 18; // only used by tn5250 + public final static int KEY_F18 = 19; // only used by tn5250 + public final static int KEY_F19 = 20; // only used by tn5250 + public final static int KEY_F20 = 21; // only used by tn5250 + public final static int KEY_F21 = 22; // only used by tn5250 + public final static int KEY_F22 = 23; // only used by tn5250 + public final static int KEY_F23 = 24; // only used by tn5250 + public final static int KEY_F24 = 25; // only used by tn5250 + public final static int KEY_UP = 26; + public final static int KEY_DOWN = 27; + public final static int KEY_LEFT = 28; + public final static int KEY_RIGHT = 29; + public final static int KEY_PAGE_DOWN = 30; + public final static int KEY_PAGE_UP = 31; + public final static int KEY_INSERT = 32; + public final static int KEY_DELETE = 33; + public final static int KEY_BACK_SPACE = 34; + public final static int KEY_HOME = 35; + public final static int KEY_END = 36; + public final static int KEY_NUM_LOCK = 37; + public final static int KEY_CAPS_LOCK = 38; + public final static int KEY_SHIFT = 39; + public final static int KEY_CONTROL = 40; + public final static int KEY_ALT = 41; + public final static int KEY_ENTER = 42; + public final static int KEY_NUMPAD0 = 43; + public final static int KEY_NUMPAD1 = 44; + public final static int KEY_NUMPAD2 = 45; + public final static int KEY_NUMPAD3 = 46; + public final static int KEY_NUMPAD4 = 47; + public final static int KEY_NUMPAD5 = 48; + public final static int KEY_NUMPAD6 = 49; + public final static int KEY_NUMPAD7 = 50; + public final static int KEY_NUMPAD8 = 51; + public final static int KEY_NUMPAD9 = 52; + public final static int KEY_DECIMAL = 53; + public final static int KEY_ADD = 54; + public final static int KEY_ESCAPE = 55; + public final static int KEY_TAB = 56; + public final static int KEY_SYSREQ = 57; // only used by tn5250 + + public final static int DELETE_IS_DEL = 0; + public final static int DELETE_IS_BACKSPACE = 1; + + /* The graphics charsets + * B - default ASCII + * A - ISO Latin 1 + * 0 - DEC SPECIAL + * < - User defined + * .... + */ + char gx[]; + char gl; // GL (left charset) + char gr; // GR (right charset) + int onegl; // single shift override for GL. + + // Map from scoansi linedrawing to DEC _and_ unicode (for the stuff which + // is not in linedrawing). Got from experimenting with scoadmin. + private final static String scoansi_acs = "Tm7k3x4u?kZl@mYjEnB\u2566DqCtAvM\u2550:\u2551N\u2557I\u2554;\u2557H\u255a0a<\u255d"; + // array to store DEC Special -> Unicode mapping + // Unicode DEC Unicode name (DEC name) + private static char DECSPECIAL[] = { + '\u0040', //5f blank + '\u2666', //60 black diamond + '\u2592', //61 grey square + '\u2409', //62 Horizontal tab (ht) pict. for control + '\u240c', //63 Form Feed (ff) pict. for control + '\u240d', //64 Carriage Return (cr) pict. for control + '\u240a', //65 Line Feed (lf) pict. for control + '\u00ba', //66 Masculine ordinal indicator + '\u00b1', //67 Plus or minus sign + '\u2424', //68 New Line (nl) pict. for control + '\u240b', //69 Vertical Tab (vt) pict. for control + '\u2518', //6a Forms light up and left + '\u2510', //6b Forms light down and left + '\u250c', //6c Forms light down and right + '\u2514', //6d Forms light up and right + '\u253c', //6e Forms light vertical and horizontal + '\u2594', //6f Upper 1/8 block (Scan 1) + '\u2580', //70 Upper 1/2 block (Scan 3) + '\u2500', //71 Forms light horizontal or ?em dash? (Scan 5) + '\u25ac', //72 \u25ac black rect. or \u2582 lower 1/4 (Scan 7) + '\u005f', //73 \u005f underscore or \u2581 lower 1/8 (Scan 9) + '\u251c', //74 Forms light vertical and right + '\u2524', //75 Forms light vertical and left + '\u2534', //76 Forms light up and horizontal + '\u252c', //77 Forms light down and horizontal + '\u2502', //78 vertical bar + '\u2264', //79 less than or equal + '\u2265', //7a greater than or equal + '\u00b6', //7b paragraph + '\u2260', //7c not equal + '\u00a3', //7d Pound Sign (british) + '\u00b7' //7e Middle Dot + }; + + /** Strings to send on function key pressing */ + private String Numpad[]; + private String FunctionKey[]; + private String FunctionKeyShift[]; + private String FunctionKeyCtrl[]; + private String FunctionKeyAlt[]; + private String TabKey[]; + private String KeyUp[], KeyDown[], KeyLeft[], KeyRight[]; + private String KPMinus, KPComma, KPPeriod, KPEnter; + private String PF1, PF2, PF3, PF4; + private String Help, Do, Find, Select; + + private String KeyHome[], KeyEnd[], Insert[], Remove[], PrevScn[], NextScn[]; + private String Escape[], BackSpace[], NUMDot[], NUMPlus[]; + + private String osc, dcs; /* to memorize OSC & DCS control sequence */ + + /** vt320 state variable (internal) */ + private int term_state = TSTATE_DATA; + /** in vms mode, set by Terminal.VMS property */ + private boolean vms = false; + /** Tabulators */ + private byte[] Tabs; + /** The list of integers as used by CSI */ + private int[] DCEvars = new int[30]; + private int DCEvar; + + /** + * Replace escape code characters (backslash + identifier) with their + * respective codes. + * @param tmp the string to be parsed + * @return a unescaped string + */ + static String unEscape(String tmp) { + int idx = 0, oldidx = 0; + String cmd; + // f.println("unescape("+tmp+")"); + cmd = ""; + + while ((idx = tmp.indexOf('\\', oldidx)) >= 0 && + ++idx <= tmp.length()) { + cmd += tmp.substring(oldidx, idx - 1); + + if (idx == tmp.length()) return cmd; + + switch (tmp.charAt(idx)) { + case 'b': + cmd += "\b"; + break; + + case 'e': + cmd += "\u001b"; + break; + + case 'n': + cmd += "\n"; + break; + + case 'r': + cmd += "\r"; + break; + + case 't': + cmd += "\t"; + break; + + case 'v': + cmd += "\u000b"; + break; + + case 'a': + cmd += "\u0012"; + break; + + default : + if ((tmp.charAt(idx) >= '0') && (tmp.charAt(idx) <= '9')) { + int i; + + for (i = idx; i < tmp.length(); i++) + if ((tmp.charAt(i) < '0') || (tmp.charAt(i) > '9')) + break; + + cmd += (char) Integer.parseInt(tmp.substring(idx, i)); + idx = i - 1; + } + else + cmd += tmp.substring(idx, ++idx); + + break; + } + + oldidx = ++idx; + } + + if (oldidx <= tmp.length()) cmd += tmp.substring(oldidx); + + return cmd; + } + + /** + * A small conveniance method thar converts a 7bit string to the 8bit + * version depending on VT52/Output8Bit mode. + * + * @param s the string to be sent + */ + private boolean writeSpecial(String s) { + if (s == null) + return true; + + if (((s.length() >= 3) && (s.charAt(0) == 27) && (s.charAt(1) == 'O'))) { + if (vt52mode) { + if ((s.charAt(2) >= 'P') && (s.charAt(2) <= 'S')) { + s = "\u001b" + s.substring(2); /* ESC x */ + } + else { + s = "\u001b?" + s.substring(2); /* ESC ? x */ + } + } + else { + if (output8bit) { + s = "\u008f" + s.substring(2); /* SS3 x */ + } /* else keep string as it is */ + } + } + + if (((s.length() >= 3) && (s.charAt(0) == 27) && (s.charAt(1) == '['))) { + if (output8bit) { + s = "\u009b" + s.substring(2); /* CSI ... */ + } /* else keep */ + } + + return write(s, false); + } + + /** + * main keytyping event handler for all the special function and modifier keys + * the normal keys are processed by write(byte b); + */ + public void keyPressed(int keyCode, char keyChar, int modifiers) { + boolean control = (modifiers & VDUInput.KEY_CONTROL) != 0; + boolean shift = (modifiers & VDUInput.KEY_SHIFT) != 0; + boolean alt = (modifiers & VDUInput.KEY_ALT) != 0; + + if (debug > 1) { + debugStr.append("keyPressed(") + .append(keyCode) + .append(", ") + .append((int)keyChar) + .append(", ") + .append(modifiers) + .append(')'); + debug(debugStr.toString()); + debugStr.setLength(0); + } + + int xind; + String fmap[]; + xind = 0; + fmap = FunctionKey; + + if (shift) { + fmap = FunctionKeyShift; + xind = 1; + } + + if (control) { + fmap = FunctionKeyCtrl; + xind = 2; + } + + if (alt) { + fmap = FunctionKeyAlt; + xind = 3; + } + + switch (keyCode) { + case KEY_PAUSE: + if (shift || control) + sendTelnetCommand((byte) 243); // BREAK + + break; + + case KEY_F1: + writeSpecial(fmap[1]); + break; + + case KEY_F2: + writeSpecial(fmap[2]); + break; + + case KEY_F3: + writeSpecial(fmap[3]); + break; + + case KEY_F4: + writeSpecial(fmap[4]); + break; + + case KEY_F5: + writeSpecial(fmap[5]); + break; + + case KEY_F6: + writeSpecial(fmap[6]); + break; + + case KEY_F7: + writeSpecial(fmap[7]); + break; + + case KEY_F8: + writeSpecial(fmap[8]); + break; + + case KEY_F9: + writeSpecial(fmap[9]); + break; + + case KEY_F10: + writeSpecial(fmap[10]); + break; + + case KEY_F11: + writeSpecial(fmap[11]); + break; + + case KEY_F12: + writeSpecial(fmap[12]); + break; + + case KEY_F13: + case KEY_F14: + case KEY_F15: + case KEY_F16: + case KEY_F17: + case KEY_F18: + case KEY_F19: + case KEY_F20: + case KEY_F21: + case KEY_F22: + case KEY_F23: + case KEY_F24: + break; + + case KEY_UP: + writeSpecial(KeyUp[xind]); + break; + + case KEY_DOWN: + writeSpecial(KeyDown[xind]); + break; + + case KEY_LEFT: + writeSpecial(KeyLeft[xind]); + break; + + case KEY_RIGHT: + writeSpecial(KeyRight[xind]); + break; + + case KEY_PAGE_DOWN: + writeSpecial(NextScn[xind]); + break; + + case KEY_PAGE_UP: + writeSpecial(PrevScn[xind]); + break; + + case KEY_INSERT: + writeSpecial(Insert[xind]); + break; + + case KEY_DELETE: + writeSpecial(Remove[xind]); + break; + + case KEY_BACK_SPACE: + writeSpecial(BackSpace[xind]); + + if (localecho) { + if (BackSpace[xind] == "\b") { + putString("\b \b"); // make the last char 'deleted' + } + else { + putString(BackSpace[xind]); // echo it + } + } + + break; + + case KEY_HOME: + writeSpecial(KeyHome[xind]); + break; + + case KEY_END: + writeSpecial(KeyEnd[xind]); + break; + + case KEY_NUM_LOCK: + if (vms && control) { + writeSpecial(PF1); + } + + if (!control) + numlock = !numlock; + + break; + + case KEY_CAPS_LOCK: + capslock = !capslock; + break; + + case KEY_SHIFT: + case KEY_CONTROL: + case KEY_ALT: + break; + + case KEY_ESCAPE: + writeSpecial(Escape[xind]); + break; + + case KEY_ENTER: + write(0x0d); + break; + + case KEY_TAB: + writeSpecial(TabKey[xind]); + break; + + default: + break; + } + } + + private void handle_dcs(String dcs) { + debugStr.append("DCS: ") + .append(dcs); + debug(debugStr.toString()); + debugStr.setLength(0); + } + + private void handle_osc(String osc) { + if (osc.length() > 2 && osc.substring(0, 2).equals("4;")) { + // Define color palette + String[] colorData = osc.split(";"); + + try { + int colorIndex = Integer.parseInt(colorData[1]); + + if ("rgb:".equals(colorData[2].substring(0, 4))) { + String[] rgb = colorData[2].substring(4).split("/"); + int red = Integer.parseInt(rgb[0].substring(0, 2), 16) & 0xFF; + int green = Integer.parseInt(rgb[1].substring(0, 2), 16) & 0xFF; + int blue = Integer.parseInt(rgb[2].substring(0, 2), 16) & 0xFF; + display.setColor(colorIndex, red, green, blue); + } + } + catch (Exception e) { + debugStr.append("OSC: invalid color sequence encountered: ") + .append(osc); + debug(debugStr.toString()); + debugStr.setLength(0); + } + } + else + debug("OSC: " + osc); + } + + private final static char unimap[] = { + //# + //# Name: cp437_DOSLatinUS to Unicode table + //# Unicode version: 1.1 + //# Table version: 1.1 + //# Table format: Format A + //# Date: 03/31/95 + //# Authors: Michel Suignard <michelsu@microsoft.com> + //# Lori Hoerth <lorih@microsoft.com> + //# General notes: none + //# + //# Format: Three tab-separated columns + //# Column #1 is the cp1255_WinHebrew code (in hex) + //# Column #2 is the Unicode (in hex as 0xXXXX) + //# Column #3 is the Unicode name (follows a comment sign, '#') + //# + //# The entries are in cp437_DOSLatinUS order + //# + + 0x0000, // #NULL + 0x0001, // #START OF HEADING + 0x0002, // #START OF TEXT + 0x0003, // #END OF TEXT + 0x0004, // #END OF TRANSMISSION + 0x0005, // #ENQUIRY + 0x0006, // #ACKNOWLEDGE + 0x0007, // #BELL + 0x0008, // #BACKSPACE + 0x0009, // #HORIZONTAL TABULATION + 0x000a, // #LINE FEED + 0x000b, // #VERTICAL TABULATION + 0x000c, // #FORM FEED + 0x000d, // #CARRIAGE RETURN + 0x000e, // #SHIFT OUT + 0x000f, // #SHIFT IN + 0x0010, // #DATA LINK ESCAPE + 0x0011, // #DEVICE CONTROL ONE + 0x0012, // #DEVICE CONTROL TWO + 0x0013, // #DEVICE CONTROL THREE + 0x0014, // #DEVICE CONTROL FOUR + 0x0015, // #NEGATIVE ACKNOWLEDGE + 0x0016, // #SYNCHRONOUS IDLE + 0x0017, // #END OF TRANSMISSION BLOCK + 0x0018, // #CANCEL + 0x0019, // #END OF MEDIUM + 0x001a, // #SUBSTITUTE + 0x001b, // #ESCAPE + 0x001c, // #FILE SEPARATOR + 0x001d, // #GROUP SEPARATOR + 0x001e, // #RECORD SEPARATOR + 0x001f, // #UNIT SEPARATOR + 0x0020, // #SPACE + 0x0021, // #EXCLAMATION MARK + 0x0022, // #QUOTATION MARK + 0x0023, // #NUMBER SIGN + 0x0024, // #DOLLAR SIGN + 0x0025, // #PERCENT SIGN + 0x0026, // #AMPERSAND + 0x0027, // #APOSTROPHE + 0x0028, // #LEFT PARENTHESIS + 0x0029, // #RIGHT PARENTHESIS + 0x002a, // #ASTERISK + 0x002b, // #PLUS SIGN + 0x002c, // #COMMA + 0x002d, // #HYPHEN-MINUS + 0x002e, // #FULL STOP + 0x002f, // #SOLIDUS + 0x0030, // #DIGIT ZERO + 0x0031, // #DIGIT ONE + 0x0032, // #DIGIT TWO + 0x0033, // #DIGIT THREE + 0x0034, // #DIGIT FOUR + 0x0035, // #DIGIT FIVE + 0x0036, // #DIGIT SIX + 0x0037, // #DIGIT SEVEN + 0x0038, // #DIGIT EIGHT + 0x0039, // #DIGIT NINE + 0x003a, // #COLON + 0x003b, // #SEMICOLON + 0x003c, // #LESS-THAN SIGN + 0x003d, // #EQUALS SIGN + 0x003e, // #GREATER-THAN SIGN + 0x003f, // #QUESTION MARK + 0x0040, // #COMMERCIAL AT + 0x0041, // #LATIN CAPITAL LETTER A + 0x0042, // #LATIN CAPITAL LETTER B + 0x0043, // #LATIN CAPITAL LETTER C + 0x0044, // #LATIN CAPITAL LETTER D + 0x0045, // #LATIN CAPITAL LETTER E + 0x0046, // #LATIN CAPITAL LETTER F + 0x0047, // #LATIN CAPITAL LETTER G + 0x0048, // #LATIN CAPITAL LETTER H + 0x0049, // #LATIN CAPITAL LETTER I + 0x004a, // #LATIN CAPITAL LETTER J + 0x004b, // #LATIN CAPITAL LETTER K + 0x004c, // #LATIN CAPITAL LETTER L + 0x004d, // #LATIN CAPITAL LETTER M + 0x004e, // #LATIN CAPITAL LETTER N + 0x004f, // #LATIN CAPITAL LETTER O + 0x0050, // #LATIN CAPITAL LETTER P + 0x0051, // #LATIN CAPITAL LETTER Q + 0x0052, // #LATIN CAPITAL LETTER R + 0x0053, // #LATIN CAPITAL LETTER S + 0x0054, // #LATIN CAPITAL LETTER T + 0x0055, // #LATIN CAPITAL LETTER U + 0x0056, // #LATIN CAPITAL LETTER V + 0x0057, // #LATIN CAPITAL LETTER W + 0x0058, // #LATIN CAPITAL LETTER X + 0x0059, // #LATIN CAPITAL LETTER Y + 0x005a, // #LATIN CAPITAL LETTER Z + 0x005b, // #LEFT SQUARE BRACKET + 0x005c, // #REVERSE SOLIDUS + 0x005d, // #RIGHT SQUARE BRACKET + 0x005e, // #CIRCUMFLEX ACCENT + 0x005f, // #LOW LINE + 0x0060, // #GRAVE ACCENT + 0x0061, // #LATIN SMALL LETTER A + 0x0062, // #LATIN SMALL LETTER B + 0x0063, // #LATIN SMALL LETTER C + 0x0064, // #LATIN SMALL LETTER D + 0x0065, // #LATIN SMALL LETTER E + 0x0066, // #LATIN SMALL LETTER F + 0x0067, // #LATIN SMALL LETTER G + 0x0068, // #LATIN SMALL LETTER H + 0x0069, // #LATIN SMALL LETTER I + 0x006a, // #LATIN SMALL LETTER J + 0x006b, // #LATIN SMALL LETTER K + 0x006c, // #LATIN SMALL LETTER L + 0x006d, // #LATIN SMALL LETTER M + 0x006e, // #LATIN SMALL LETTER N + 0x006f, // #LATIN SMALL LETTER O + 0x0070, // #LATIN SMALL LETTER P + 0x0071, // #LATIN SMALL LETTER Q + 0x0072, // #LATIN SMALL LETTER R + 0x0073, // #LATIN SMALL LETTER S + 0x0074, // #LATIN SMALL LETTER T + 0x0075, // #LATIN SMALL LETTER U + 0x0076, // #LATIN SMALL LETTER V + 0x0077, // #LATIN SMALL LETTER W + 0x0078, // #LATIN SMALL LETTER X + 0x0079, // #LATIN SMALL LETTER Y + 0x007a, // #LATIN SMALL LETTER Z + 0x007b, // #LEFT CURLY BRACKET + 0x007c, // #VERTICAL LINE + 0x007d, // #RIGHT CURLY BRACKET + 0x007e, // #TILDE + 0x007f, // #DELETE + 0x00c7, // #LATIN CAPITAL LETTER C WITH CEDILLA + 0x00fc, // #LATIN SMALL LETTER U WITH DIAERESIS + 0x00e9, // #LATIN SMALL LETTER E WITH ACUTE + 0x00e2, // #LATIN SMALL LETTER A WITH CIRCUMFLEX + 0x00e4, // #LATIN SMALL LETTER A WITH DIAERESIS + 0x00e0, // #LATIN SMALL LETTER A WITH GRAVE + 0x00e5, // #LATIN SMALL LETTER A WITH RING ABOVE + 0x00e7, // #LATIN SMALL LETTER C WITH CEDILLA + 0x00ea, // #LATIN SMALL LETTER E WITH CIRCUMFLEX + 0x00eb, // #LATIN SMALL LETTER E WITH DIAERESIS + 0x00e8, // #LATIN SMALL LETTER E WITH GRAVE + 0x00ef, // #LATIN SMALL LETTER I WITH DIAERESIS + 0x00ee, // #LATIN SMALL LETTER I WITH CIRCUMFLEX + 0x00ec, // #LATIN SMALL LETTER I WITH GRAVE + 0x00c4, // #LATIN CAPITAL LETTER A WITH DIAERESIS + 0x00c5, // #LATIN CAPITAL LETTER A WITH RING ABOVE + 0x00c9, // #LATIN CAPITAL LETTER E WITH ACUTE + 0x00e6, // #LATIN SMALL LIGATURE AE + 0x00c6, // #LATIN CAPITAL LIGATURE AE + 0x00f4, // #LATIN SMALL LETTER O WITH CIRCUMFLEX + 0x00f6, // #LATIN SMALL LETTER O WITH DIAERESIS + 0x00f2, // #LATIN SMALL LETTER O WITH GRAVE + 0x00fb, // #LATIN SMALL LETTER U WITH CIRCUMFLEX + 0x00f9, // #LATIN SMALL LETTER U WITH GRAVE + 0x00ff, // #LATIN SMALL LETTER Y WITH DIAERESIS + 0x00d6, // #LATIN CAPITAL LETTER O WITH DIAERESIS + 0x00dc, // #LATIN CAPITAL LETTER U WITH DIAERESIS + 0x00a2, // #CENT SIGN + 0x00a3, // #POUND SIGN + 0x00a5, // #YEN SIGN + 0x20a7, // #PESETA SIGN + 0x0192, // #LATIN SMALL LETTER F WITH HOOK + 0x00e1, // #LATIN SMALL LETTER A WITH ACUTE + 0x00ed, // #LATIN SMALL LETTER I WITH ACUTE + 0x00f3, // #LATIN SMALL LETTER O WITH ACUTE + 0x00fa, // #LATIN SMALL LETTER U WITH ACUTE + 0x00f1, // #LATIN SMALL LETTER N WITH TILDE + 0x00d1, // #LATIN CAPITAL LETTER N WITH TILDE + 0x00aa, // #FEMININE ORDINAL INDICATOR + 0x00ba, // #MASCULINE ORDINAL INDICATOR + 0x00bf, // #INVERTED QUESTION MARK + 0x2310, // #REVERSED NOT SIGN + 0x00ac, // #NOT SIGN + 0x00bd, // #VULGAR FRACTION ONE HALF + 0x00bc, // #VULGAR FRACTION ONE QUARTER + 0x00a1, // #INVERTED EXCLAMATION MARK + 0x00ab, // #LEFT-POINTING DOUBLE ANGLE QUOTATION MARK + 0x00bb, // #RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK + 0x2591, // #LIGHT SHADE + 0x2592, // #MEDIUM SHADE + 0x2593, // #DARK SHADE + 0x2502, // #BOX DRAWINGS LIGHT VERTICAL + 0x2524, // #BOX DRAWINGS LIGHT VERTICAL AND LEFT + 0x2561, // #BOX DRAWINGS VERTICAL SINGLE AND LEFT DOUBLE + 0x2562, // #BOX DRAWINGS VERTICAL DOUBLE AND LEFT SINGLE + 0x2556, // #BOX DRAWINGS DOWN DOUBLE AND LEFT SINGLE + 0x2555, // #BOX DRAWINGS DOWN SINGLE AND LEFT DOUBLE + 0x2563, // #BOX DRAWINGS DOUBLE VERTICAL AND LEFT + 0x2551, // #BOX DRAWINGS DOUBLE VERTICAL + 0x2557, // #BOX DRAWINGS DOUBLE DOWN AND LEFT + 0x255d, // #BOX DRAWINGS DOUBLE UP AND LEFT + 0x255c, // #BOX DRAWINGS UP DOUBLE AND LEFT SINGLE + 0x255b, // #BOX DRAWINGS UP SINGLE AND LEFT DOUBLE + 0x2510, // #BOX DRAWINGS LIGHT DOWN AND LEFT + 0x2514, // #BOX DRAWINGS LIGHT UP AND RIGHT + 0x2534, // #BOX DRAWINGS LIGHT UP AND HORIZONTAL + 0x252c, // #BOX DRAWINGS LIGHT DOWN AND HORIZONTAL + 0x251c, // #BOX DRAWINGS LIGHT VERTICAL AND RIGHT + 0x2500, // #BOX DRAWINGS LIGHT HORIZONTAL + 0x253c, // #BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL + 0x255e, // #BOX DRAWINGS VERTICAL SINGLE AND RIGHT DOUBLE + 0x255f, // #BOX DRAWINGS VERTICAL DOUBLE AND RIGHT SINGLE + 0x255a, // #BOX DRAWINGS DOUBLE UP AND RIGHT + 0x2554, // #BOX DRAWINGS DOUBLE DOWN AND RIGHT + 0x2569, // #BOX DRAWINGS DOUBLE UP AND HORIZONTAL + 0x2566, // #BOX DRAWINGS DOUBLE DOWN AND HORIZONTAL + 0x2560, // #BOX DRAWINGS DOUBLE VERTICAL AND RIGHT + 0x2550, // #BOX DRAWINGS DOUBLE HORIZONTAL + 0x256c, // #BOX DRAWINGS DOUBLE VERTICAL AND HORIZONTAL + 0x2567, // #BOX DRAWINGS UP SINGLE AND HORIZONTAL DOUBLE + 0x2568, // #BOX DRAWINGS UP DOUBLE AND HORIZONTAL SINGLE + 0x2564, // #BOX DRAWINGS DOWN SINGLE AND HORIZONTAL DOUBLE + 0x2565, // #BOX DRAWINGS DOWN DOUBLE AND HORIZONTAL SINGLE + 0x2559, // #BOX DRAWINGS UP DOUBLE AND RIGHT SINGLE + 0x2558, // #BOX DRAWINGS UP SINGLE AND RIGHT DOUBLE + 0x2552, // #BOX DRAWINGS DOWN SINGLE AND RIGHT DOUBLE + 0x2553, // #BOX DRAWINGS DOWN DOUBLE AND RIGHT SINGLE + 0x256b, // #BOX DRAWINGS VERTICAL DOUBLE AND HORIZONTAL SINGLE + 0x256a, // #BOX DRAWINGS VERTICAL SINGLE AND HORIZONTAL DOUBLE + 0x2518, // #BOX DRAWINGS LIGHT UP AND LEFT + 0x250c, // #BOX DRAWINGS LIGHT DOWN AND RIGHT + 0x2588, // #FULL BLOCK + 0x2584, // #LOWER HALF BLOCK + 0x258c, // #LEFT HALF BLOCK + 0x2590, // #RIGHT HALF BLOCK + 0x2580, // #UPPER HALF BLOCK + 0x03b1, // #GREEK SMALL LETTER ALPHA + 0x00df, // #LATIN SMALL LETTER SHARP S + 0x0393, // #GREEK CAPITAL LETTER GAMMA + 0x03c0, // #GREEK SMALL LETTER PI + 0x03a3, // #GREEK CAPITAL LETTER SIGMA + 0x03c3, // #GREEK SMALL LETTER SIGMA + 0x00b5, // #MICRO SIGN + 0x03c4, // #GREEK SMALL LETTER TAU + 0x03a6, // #GREEK CAPITAL LETTER PHI + 0x0398, // #GREEK CAPITAL LETTER THETA + 0x03a9, // #GREEK CAPITAL LETTER OMEGA + 0x03b4, // #GREEK SMALL LETTER DELTA + 0x221e, // #INFINITY + 0x03c6, // #GREEK SMALL LETTER PHI + 0x03b5, // #GREEK SMALL LETTER EPSILON + 0x2229, // #INTERSECTION + 0x2261, // #IDENTICAL TO + 0x00b1, // #PLUS-MINUS SIGN + 0x2265, // #GREATER-THAN OR EQUAL TO + 0x2264, // #LESS-THAN OR EQUAL TO + 0x2320, // #TOP HALF INTEGRAL + 0x2321, // #BOTTOM HALF INTEGRAL + 0x00f7, // #DIVISION SIGN + 0x2248, // #ALMOST EQUAL TO + 0x00b0, // #DEGREE SIGN + 0x2219, // #BULLET OPERATOR + 0x00b7, // #MIDDLE DOT + 0x221a, // #SQUARE ROOT + 0x207f, // #SUPERSCRIPT LATIN SMALL LETTER N + 0x00b2, // #SUPERSCRIPT TWO + 0x25a0, // #BLACK SQUARE + 0x00a0, // #NO-BREAK SPACE + }; + + public char map_cp850_unicode(char x) { + if (x >= 0x100) + return x; + + return unimap[x]; + } + + private void _SetCursor(int row, int col) { + int maxr = height - 1; + int tm = getTopMargin(); + R = (row < 0) ? 0 : row; + C = (col < 0) ? 0 : (col >= width) ? width - 1 : col; + + if (!moveoutsidemargins) { + R += tm; + maxr = getBottomMargin(); + } + + if (R > maxr) R = maxr; + } + + private void putChar(char c, boolean isWide, boolean doshowcursor) { + int rows = this.height; //statusline + int columns = this.width; + + // byte msg[]; +// if (debug > 4) { +// debugStr.append("putChar(") +// .append(c) +// .append(" [") +// .append((int) c) +// .append("]) at R=") +// .append(R) +// .append(" , C=") +// .append(C) +// .append(", columns=") +// .append(columns) +// .append(", rows=") +// .append(rows); +// debug(debugStr.toString()); +// debugStr.setLength(0); +// } +// markLine(R, 1); +// if (c > 255) { +// if (debug > 0) +// debug("char > 255:" + (int) c); +// //return; +// } + switch (term_state) { + case TSTATE_DATA: + + /* FIXME: we shouldn't use chars with bit 8 set if ibmcharset. + * probably... but some BBS do anyway... + */ + if (!useibmcharset) { + boolean doneflag = true; + + switch (c) { + case OSC: + osc = ""; + term_state = TSTATE_OSC; + break; + + case RI: + if (R > getTopMargin()) + R--; + else + insertLine(R, 1, SCROLL_DOWN); + + if (debug > 1) + debug("RI"); + + break; + + case IND: + if (debug > 2) { + debugStr.append("IND at ") + .append(R) + .append(", tm is ") + .append(getTopMargin()) + .append(", bm is ") + .append(getBottomMargin()); + debug(debugStr.toString()); + debugStr.setLength(0); + } + + if (R == getBottomMargin() || R == rows - 1) + insertLine(R, 1, SCROLL_UP); + else + R++; + + if (debug > 1) + debug("IND (at " + R + " )"); + + break; + + case NEL: + if (R == getBottomMargin() || R == rows - 1) + insertLine(R, 1, SCROLL_UP); + else + R++; + + C = 0; + + if (debug > 1) + debug("NEL (at " + R + " )"); + + break; + + case HTS: + Tabs[C] = 1; + + if (debug > 1) + debug("HTS"); + + break; + + case DCS: + dcs = ""; + term_state = TSTATE_DCS; + break; + + default: + doneflag = false; + break; + } + + if (doneflag) break; + } + + switch (c) { + case SS3: + onegl = 3; + break; + + case SS2: + onegl = 2; + break; + + case CSI: // should be in the 8bit section, but some BBS use this + DCEvar = 0; + DCEvars[0] = 0; + DCEvars[1] = 0; + DCEvars[2] = 0; + DCEvars[3] = 0; + term_state = TSTATE_CSI; + break; + + case ESC: + term_state = TSTATE_ESC; + lastwaslf = 0; + break; + + case 5: /* ENQ */ + write(answerBack, false); + break; + + case 12: + /* FormFeed, Home for the BBS world */ + deleteArea(0, 0, columns, rows, attributes); + C = R = 0; + break; + + case '\b': /* 8 */ + C--; + + if (C < 0) + C = 0; + + lastwaslf = 0; + break; + + case '\t': + do { + // Don't overwrite or insert! TABS are not destructive, but movement! + C++; + } + while (C < columns && (Tabs[C] == 0)); + + lastwaslf = 0; + break; + + case '\r': // 13 CR + C = 0; + break; + + case '\n': // 10 LF + if (debug > 3) + debug("R= " + R + ", bm " + getBottomMargin() + ", tm=" + getTopMargin() + ", rows=" + rows); + + if (!vms) { + if (lastwaslf != 0 && lastwaslf != c) // Ray: I do not understand this logic. + break; + + lastwaslf = c; + /*C = 0;*/ + } + + if (R == getBottomMargin() || R >= rows - 1) + insertLine(R, 1, SCROLL_UP); + else + R++; + + break; + + case 7: + beep(); + break; + + case '\016': /* SMACS , as */ + /* ^N, Shift out - Put G1 into GL */ + gl = 1; + usedcharsets = true; + break; + + case '\017': /* RMACS , ae */ + /* ^O, Shift in - Put G0 into GL */ + gl = 0; + usedcharsets = true; + break; + + default: { + int thisgl = gl; + + if (onegl >= 0) { + thisgl = onegl; + onegl = -1; + } + + lastwaslf = 0; + + if (c < 32) { + if (c != 0) + if (debug > 0) + debug("TSTATE_DATA char: " + ((int) c)); + + /*break; some BBS really want those characters, like hearst etc. */ + if (c == 0) /* print 0 ... you bet */ + break; + } + + if (C >= columns) { + if (wraparound) { + int bot = rows; + + // If we're in the scroll region, check against the bottom margin + if (R <= getBottomMargin() && R >= getTopMargin()) + bot = getBottomMargin() + 1; + + if (R < bot - 1) + R++; + else { + if (debug > 3) debug("scrolling due to wrap at " + R); + + insertLine(R, 1, SCROLL_UP); + } + + C = 0; + } + else { + // cursor stays on last character. + C = columns - 1; + } + } + + boolean mapped = false; + + // Mapping if DEC Special is chosen charset + if (usedcharsets) { + if (c >= '\u0020' && c <= '\u007f') { + switch (gx[thisgl]) { + case '0': + + // Remap SCOANSI line drawing to VT100 line drawing chars + // for our SCO using customers. + if (terminalID.equals("scoansi") || terminalID.equals("ansi")) { + for (int i = 0; i < scoansi_acs.length(); i += 2) { + if (c == scoansi_acs.charAt(i)) { + c = scoansi_acs.charAt(i + 1); + break; + } + } + } + + if (c >= '\u005f' && c <= '\u007e') { + c = DECSPECIAL[(short) c - 0x5f]; + mapped = true; + } + + break; + + case '<': // 'user preferred' is currently 'ISO Latin-1 suppl + c = (char)((c & 0x7f) | 0x80); + mapped = true; + break; + + case 'A': + case 'B': // Latin-1 , ASCII -> fall through + mapped = true; + break; + + default: + debug("Unsupported GL mapping: " + gx[thisgl]); + break; + } + } + + if (!mapped && (c >= '\u0080' && c <= '\u00ff')) { + switch (gx[gr]) { + case '0': + if (c >= '\u00df' && c <= '\u00fe') { + c = DECSPECIAL[c - '\u00df']; + mapped = true; + } + + break; + + case '<': + case 'A': + case 'B': + mapped = true; + break; + + default: + debug("Unsupported GR mapping: " + gx[gr]); + break; + } + } + } + + if (!mapped && useibmcharset) + c = map_cp850_unicode(c); + + /*if(true || (statusmode == 0)) { */ + if (isWide) { + if (C >= columns - 1) { + if (wraparound) { + int bot = rows; + + // If we're in the scroll region, check against the bottom margin + if (R <= getBottomMargin() && R >= getTopMargin()) + bot = getBottomMargin() + 1; + + if (R < bot - 1) + R++; + else { + if (debug > 3) debug("scrolling due to wrap at " + R); + + insertLine(R, 1, SCROLL_UP); + } + + C = 0; + } + else { + // cursor stays on last wide character. + C = columns - 2; + } + } + } + + if (insertmode == 1) { + if (isWide) { + insertChar(C++, R, c, attributes | FULLWIDTH); + insertChar(C, R, ' ', attributes | FULLWIDTH); + } + else + insertChar(C, R, c, attributes); + } + else { + if (isWide) { + putChar(C++, R, c, attributes | FULLWIDTH); + putChar(C, R, ' ', attributes | FULLWIDTH); + } + else + putChar(C, R, c, attributes); + } + + /* + } else { + if (insertmode==1) { + insertChar(C, rows, c, attributes); + } else { + putChar(C, rows, c, attributes); + } + } + */ + C++; + break; + } + } /* switch(c) */ + + break; + + case TSTATE_OSC: + if ((c < 0x20) && (c != ESC)) {// NP - No printing character + handle_osc(osc); + term_state = TSTATE_DATA; + break; + } + + //but check for vt102 ESC \ + if (c == '\\' && osc.charAt(osc.length() - 1) == ESC) { + handle_osc(osc); + term_state = TSTATE_DATA; + break; + } + + osc = osc + c; + break; + + case TSTATE_ESCSPACE: + term_state = TSTATE_DATA; + + switch (c) { + case 'F': /* S7C1T, Disable output of 8-bit controls, use 7-bit */ + output8bit = false; + break; + + case 'G': /* S8C1T, Enable output of 8-bit control codes*/ + output8bit = true; + break; + + default: + debug("ESC <space> " + c + " unhandled."); + } + + break; + + case TSTATE_ESC: + term_state = TSTATE_DATA; + + switch (c) { + case ' ': + term_state = TSTATE_ESCSPACE; + break; + + case '#': + term_state = TSTATE_ESCSQUARE; + break; + + case 'c': + /* Hard terminal reset */ + reset(); + break; + + case '[': + DCEvar = 0; + DCEvars[0] = 0; + DCEvars[1] = 0; + DCEvars[2] = 0; + DCEvars[3] = 0; + term_state = TSTATE_CSI; + break; + + case ']': + osc = ""; + term_state = TSTATE_OSC; + break; + + case 'P': + dcs = ""; + term_state = TSTATE_DCS; + break; + + case 'A': /* CUU */ + R--; + + if (R < 0) R = 0; + + break; + + case 'B': /* CUD */ + R++; + + if (R >= rows) R = rows - 1; + + break; + + case 'C': + C++; + + if (C >= columns) C = columns - 1; + + break; + + case 'I': // RI + insertLine(R, 1, SCROLL_DOWN); + break; + + case 'E': /* NEL */ + if (R == getBottomMargin() || R == rows - 1) + insertLine(R, 1, SCROLL_UP); + else + R++; + + C = 0; + + if (debug > 1) + debug("ESC E (at " + R + ")"); + + break; + + case 'D': /* IND */ + if (R == getBottomMargin() || R == rows - 1) + insertLine(R, 1, SCROLL_UP); + else + R++; + + if (debug > 1) + debug("ESC D (at " + R + " )"); + + break; + + case 'J': /* erase to end of screen */ + if (R < rows - 1) + deleteArea(0, R + 1, columns, rows - R - 1, attributes); + + if (C < columns - 1) + deleteArea(C, R, columns - C, 1, attributes); + + break; + + case 'K': + if (C < columns - 1) + deleteArea(C, R, columns - C, 1, attributes); + + break; + + case 'M': // RI + debug("ESC M : R is " + R + ", tm is " + getTopMargin() + ", bm is " + getBottomMargin()); + + if (R > getTopMargin()) { // just go up 1 line. + R--; + } + else { // scroll down + insertLine(R, 1, SCROLL_DOWN); + } + + /* else do nothing ; */ + if (debug > 2) + debug("ESC M "); + + break; + + case 'H': + if (debug > 1) + debug("ESC H at " + C); + + /* right border probably ...*/ + if (C >= columns) + C = columns - 1; + + Tabs[C] = 1; + break; + + case 'N': // SS2 + onegl = 2; + break; + + case 'O': // SS3 + onegl = 3; + break; + + case '=': + + /*application keypad*/ + if (debug > 0) + debug("ESC ="); + + keypadmode = true; + break; + + case '<': /* vt52 mode off */ + vt52mode = false; + break; + + case '>': /*normal keypad*/ + if (debug > 0) + debug("ESC >"); + + keypadmode = false; + break; + + case '7': /* DECSC: save cursor, attributes */ + Sc = C; + Sr = R; + Sgl = gl; + Sgr = gr; + Sa = attributes; + Sgx = new char[4]; + + for (int i = 0; i < 4; i++) Sgx[i] = gx[i]; + + if (debug > 1) + debug("ESC 7"); + + break; + + case '8': /* DECRC: restore cursor, attributes */ + C = Sc; + R = Sr; + gl = Sgl; + gr = Sgr; + + if (Sgx != null) + for (int i = 0; i < 4; i++) gx[i] = Sgx[i]; + + attributes = Sa; + + if (debug > 1) + debug("ESC 8"); + + break; + + case '(': /* Designate G0 Character set (ISO 2022) */ + term_state = TSTATE_SETG0; + usedcharsets = true; + break; + + case ')': /* Designate G1 character set (ISO 2022) */ + term_state = TSTATE_SETG1; + usedcharsets = true; + break; + + case '*': /* Designate G2 Character set (ISO 2022) */ + term_state = TSTATE_SETG2; + usedcharsets = true; + break; + + case '+': /* Designate G3 Character set (ISO 2022) */ + term_state = TSTATE_SETG3; + usedcharsets = true; + break; + + case '~': /* Locking Shift 1, right */ + gr = 1; + usedcharsets = true; + break; + + case 'n': /* Locking Shift 2 */ + gl = 2; + usedcharsets = true; + break; + + case '}': /* Locking Shift 2, right */ + gr = 2; + usedcharsets = true; + break; + + case 'o': /* Locking Shift 3 */ + gl = 3; + usedcharsets = true; + break; + + case '|': /* Locking Shift 3, right */ + gr = 3; + usedcharsets = true; + break; + + case 'Y': /* vt52 cursor address mode , next chars are x,y */ + term_state = TSTATE_VT52Y; + break; + + case '_': + term_state = TSTATE_TITLE; + break; + + case '\\': + // TODO save title + term_state = TSTATE_DATA; + break; + + default: + debug("ESC unknown letter: " + c + " (" + ((int) c) + ")"); + break; + } + + break; + + case TSTATE_VT52X: + C = c - 37; + + if (C < 0) + C = 0; + else if (C >= width) + C = width - 1; + + term_state = TSTATE_VT52Y; + break; + + case TSTATE_VT52Y: + R = c - 37; + + if (R < 0) + R = 0; + else if (R >= height) + R = height - 1; + + term_state = TSTATE_DATA; + break; + + case TSTATE_SETG0: + if (c != '0' && c != 'A' && c != 'B' && c != '<') + debug("ESC ( " + c + ": G0 char set? (" + ((int) c) + ")"); + else { + if (debug > 2) debug("ESC ( : G0 char set (" + c + " " + ((int) c) + ")"); + + gx[0] = c; + } + + term_state = TSTATE_DATA; + break; + + case TSTATE_SETG1: + if (c != '0' && c != 'A' && c != 'B' && c != '<') { + debug("ESC ) " + c + " (" + ((int) c) + ") :G1 char set?"); + } + else { + if (debug > 2) debug("ESC ) :G1 char set (" + c + " " + ((int) c) + ")"); + + gx[1] = c; + } + + term_state = TSTATE_DATA; + break; + + case TSTATE_SETG2: + if (c != '0' && c != 'A' && c != 'B' && c != '<') + debug("ESC*:G2 char set? (" + ((int) c) + ")"); + else { + if (debug > 2) debug("ESC*:G2 char set (" + c + " " + ((int) c) + ")"); + + gx[2] = c; + } + + term_state = TSTATE_DATA; + break; + + case TSTATE_SETG3: + if (c != '0' && c != 'A' && c != 'B' && c != '<') + debug("ESC+:G3 char set? (" + ((int) c) + ")"); + else { + if (debug > 2) debug("ESC+:G3 char set (" + c + " " + ((int) c) + ")"); + + gx[3] = c; + } + + term_state = TSTATE_DATA; + break; + + case TSTATE_ESCSQUARE: + switch (c) { + case '8': + for (int i = 0; i < columns; i++) + for (int j = 0; j < rows; j++) + putChar(i, j, 'E', 0); + + break; + + default: + debug("ESC # " + c + " not supported."); + break; + } + + term_state = TSTATE_DATA; + break; + + case TSTATE_DCS: + if (c == '\\' && dcs.charAt(dcs.length() - 1) == ESC) { + handle_dcs(dcs); + term_state = TSTATE_DATA; + break; + } + + dcs = dcs + c; + break; + + case TSTATE_DCEQ: + term_state = TSTATE_DATA; + + switch (c) { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + DCEvars[DCEvar] = DCEvars[DCEvar] * 10 + (c) - 48; + term_state = TSTATE_DCEQ; + break; + + case ';': + DCEvar++; + DCEvars[DCEvar] = 0; + term_state = TSTATE_DCEQ; + break; + + case 's': // XTERM_SAVE missing! + if (true || debug > 1) + debug("ESC [ ? " + DCEvars[0] + " s unimplemented!"); + + break; + + case 'r': // XTERM_RESTORE + if (true || debug > 1) + debug("ESC [ ? " + DCEvars[0] + " r"); + + /* DEC Mode reset */ + for (int i = 0; i <= DCEvar; i++) { + switch (DCEvars[i]) { + case 3: /* 80 columns*/ + setScreenSize(80, height, true); + break; + + case 4: /* scrolling mode, smooth */ + break; + + case 5: /* light background */ + break; + + case 6: /* DECOM (Origin Mode) move inside margins. */ + moveoutsidemargins = true; + break; + + case 7: /* DECAWM: Autowrap Mode */ + wraparound = false; + break; + + case 12:/* local echo off */ + break; + + case 9: /* X10 mouse */ + case 1000: /* xterm style mouse report on */ + case 1001: + case 1002: + case 1003: + mouserpt = DCEvars[i]; + break; + + default: + debug("ESC [ ? " + DCEvars[0] + " r, unimplemented!"); + } + } + + break; + + case 'h': // DECSET + if (debug > 0) + debug("ESC [ ? " + DCEvars[0] + " h"); + + /* DEC Mode set */ + for (int i = 0; i <= DCEvar; i++) { + switch (DCEvars[i]) { + case 1: /* Application cursor keys */ + KeyUp[0] = "\u001bOA"; + KeyDown[0] = "\u001bOB"; + KeyRight[0] = "\u001bOC"; + KeyLeft[0] = "\u001bOD"; + break; + + case 2: /* DECANM */ + vt52mode = false; + break; + + case 3: /* 132 columns*/ + setScreenSize(132, height, true); + break; + + case 6: /* DECOM: move inside margins. */ + moveoutsidemargins = false; + break; + + case 7: /* DECAWM: Autowrap Mode */ + wraparound = true; + break; + + case 25: /* turn cursor on */ + showCursor(true); + break; + + case 9: /* X10 mouse */ + case 1000: /* xterm style mouse report on */ + case 1001: + case 1002: + case 1003: + mouserpt = DCEvars[i]; + break; + + /* unimplemented stuff, fall through */ + /* 4 - scrolling mode, smooth */ + /* 5 - light background */ + /* 12 - local echo off */ + /* 18 - DECPFF - Printer Form Feed Mode -> On */ + /* 19 - DECPEX - Printer Extent Mode -> Screen */ + default: + debug("ESC [ ? " + DCEvars[0] + " h, unsupported."); + break; + } + } + + break; + + case 'i': // DEC Printer Control, autoprint, echo screenchars to printer + + // This is different to CSI i! + // Also: "Autoprint prints a final display line only when the + // cursor is moved off the line by an autowrap or LF, FF, or + // VT (otherwise do not print the line)." + switch (DCEvars[0]) { + case 1: + if (debug > 1) + debug("CSI ? 1 i : Print line containing cursor"); + + break; + + case 4: + if (debug > 1) + debug("CSI ? 4 i : Start passthrough printing"); + + break; + + case 5: + if (debug > 1) + debug("CSI ? 4 i : Stop passthrough printing"); + + break; + } + + break; + + case 'l': //DECRST + + /* DEC Mode reset */ + if (debug > 0) + debug("ESC [ ? " + DCEvars[0] + " l"); + + for (int i = 0; i <= DCEvar; i++) { + switch (DCEvars[i]) { + case 1: /* Application cursor keys */ + KeyUp[0] = "\u001b[A"; + KeyDown[0] = "\u001b[B"; + KeyRight[0] = "\u001b[C"; + KeyLeft[0] = "\u001b[D"; + break; + + case 2: /* DECANM */ + vt52mode = true; + break; + + case 3: /* 80 columns*/ + setScreenSize(80, height, true); + break; + + case 6: /* DECOM: move outside margins. */ + moveoutsidemargins = true; + break; + + case 7: /* DECAWM: Autowrap Mode OFF */ + wraparound = false; + break; + + case 25: /* turn cursor off */ + showCursor(false); + break; + + /* Unimplemented stuff: */ + /* 4 - scrolling mode, jump */ + /* 5 - dark background */ + /* 7 - DECAWM - no wrap around mode */ + /* 12 - local echo on */ + /* 18 - DECPFF - Printer Form Feed Mode -> Off*/ + /* 19 - DECPEX - Printer Extent Mode -> Scrolling Region */ + case 9: /* X10 mouse */ + case 1000: /* xterm style mouse report OFF */ + case 1001: + case 1002: + case 1003: + mouserpt = 0; + break; + + default: + debug("ESC [ ? " + DCEvars[0] + " l, unsupported."); + break; + } + } + + break; + + case 'n': + if (debug > 0) + debug("ESC [ ? " + DCEvars[0] + " n"); + + switch (DCEvars[0]) { + case 15: + /* printer? no printer. */ + write((ESC) + "[?13n", false); + debug("ESC[5n"); + break; + + default: + debug("ESC [ ? " + DCEvars[0] + " n, unsupported."); + break; + } + + break; + + default: + debug("ESC [ ? " + DCEvars[0] + " " + c + ", unsupported."); + break; + } + + break; + + case TSTATE_CSI_EX: + term_state = TSTATE_DATA; + + switch (c) { + case ESC: + term_state = TSTATE_ESC; + break; + + default: + debug("Unknown character ESC[! character is " + (int) c); + break; + } + + break; + + case TSTATE_CSI_TICKS: + term_state = TSTATE_DATA; + + switch (c) { + case 'p': + debug("Conformance level: " + DCEvars[0] + " (unsupported)," + DCEvars[1]); + + if (DCEvars[0] == 61) { + output8bit = false; + break; + } + + if (DCEvars[1] == 1) { + output8bit = false; + } + else { + output8bit = true; /* 0 or 2 */ + } + + break; + + default: + debug("Unknown ESC [... \"" + c); + break; + } + + break; + + case TSTATE_CSI_EQUAL: + term_state = TSTATE_DATA; + + switch (c) { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + DCEvars[DCEvar] = DCEvars[DCEvar] * 10 + (c) - 48; + term_state = TSTATE_CSI_EQUAL; + break; + + case ';': + DCEvar++; + DCEvars[DCEvar] = 0; + term_state = TSTATE_CSI_EQUAL; + break; + + case 'F': { /* SCO ANSI foreground */ + int newcolor; + debug("ESC [ = " + DCEvars[0] + " F"); + attributes &= ~COLOR_FG; + newcolor = ((DCEvars[0] & 1) << 2) | + (DCEvars[0] & 2) | + ((DCEvars[0] & 4) >> 2) ; + attributes |= (newcolor + 1) << COLOR_FG_SHIFT; + break; + } + + case 'G': { /* SCO ANSI background */ + int newcolor; + debug("ESC [ = " + DCEvars[0] + " G"); + attributes &= ~COLOR_BG; + newcolor = ((DCEvars[0] & 1) << 2) | + (DCEvars[0] & 2) | + ((DCEvars[0] & 4) >> 2) ; + attributes |= (newcolor + 1) << COLOR_BG_SHIFT; + break; + } + + default: + debugStr.append("Unknown ESC [ = "); + + for (int i = 0; i <= DCEvar; i++) { + debugStr.append(DCEvars[i]) + .append(','); + } + + debugStr.append(c); + debug(debugStr.toString()); + debugStr.setLength(0); + break; + } + + break; + + case TSTATE_CSI_DOLLAR: + term_state = TSTATE_DATA; + + switch (c) { + case '}': + debug("Active Status Display now " + DCEvars[0]); + statusmode = DCEvars[0]; + break; + + /* bad documentation? + case '-': + debug("Set Status Display now "+DCEvars[0]); + break; + */ + case '~': + debug("Status Line mode now " + DCEvars[0]); + break; + + default: + debug("UNKNOWN Status Display code " + c + ", with Pn=" + DCEvars[0]); + break; + } + + break; + + case TSTATE_CSI: + term_state = TSTATE_DATA; + + switch (c) { + case '"': + term_state = TSTATE_CSI_TICKS; + break; + + case '$': + term_state = TSTATE_CSI_DOLLAR; + break; + + case '=': + term_state = TSTATE_CSI_EQUAL; + break; + + case '!': + term_state = TSTATE_CSI_EX; + break; + + case '?': + DCEvar = 0; + DCEvars[0] = 0; + term_state = TSTATE_DCEQ; + break; + + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + DCEvars[DCEvar] = DCEvars[DCEvar] * 10 + (c) - 48; + term_state = TSTATE_CSI; + break; + + case ';': + DCEvar++; + DCEvars[DCEvar] = 0; + term_state = TSTATE_CSI; + break; + + case 'c':/* send primary device attributes */ + /* send (ESC[?61c) */ + String subcode = ""; + + if (terminalID.equals("vt320")) subcode = "63;"; + + if (terminalID.equals("vt220")) subcode = "62;"; + + if (terminalID.equals("vt100")) subcode = "61;"; + + write((ESC) + "[?" + subcode + "1;2c", false); + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " c"); + + break; + + case 'q': + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " q"); + + break; + + case 'g': + + /* used for tabsets */ + switch (DCEvars[0]) { + case 3:/* clear them */ + Tabs = new byte[width]; + break; + + case 0: + Tabs[C] = 0; + break; + } + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " g"); + + break; + + case 'h': + switch (DCEvars[0]) { + case 4: + insertmode = 1; + break; + + case 20: + debug("Setting CRLF to TRUE"); + sendcrlf = true; + break; + + default: + debug("unsupported: ESC [ " + DCEvars[0] + " h"); + break; + } + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " h"); + + break; + + case 'i': // Printer Controller mode. + + // "Transparent printing sends all output, except the CSI 4 i + // termination string, to the printer and not the screen, + // uses an 8-bit channel if no parity so NUL and DEL will be + // seen by the printer and by the termination recognizer code, + // and all translation and character set selections are + // bypassed." + switch (DCEvars[0]) { + case 0: + if (debug > 1) + debug("CSI 0 i: Print Screen, not implemented."); + + break; + + case 4: + if (debug > 1) + debug("CSI 4 i: Enable Transparent Printing, not implemented."); + + break; + + case 5: + if (debug > 1) + debug("CSI 4/5 i: Disable Transparent Printing, not implemented."); + + break; + + default: + debug("ESC [ " + DCEvars[0] + " i, unimplemented!"); + } + + break; + + case 'l': + switch (DCEvars[0]) { + case 4: + insertmode = 0; + break; + + case 20: + debug("Setting CRLF to FALSE"); + sendcrlf = false; + break; + + default: + debug("ESC [ " + DCEvars[0] + " l, unimplemented!"); + break; + } + + break; + + case 'A': { // CUU + int limit; + + /* FIXME: xterm only cares about 0 and topmargin */ + if (R >= getTopMargin()) { + limit = getTopMargin(); + } + else + limit = 0; + + if (DCEvars[0] == 0) + R--; + else + R -= DCEvars[0]; + + if (R < limit) + R = limit; + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " A"); + + break; + } + + case 'B': // CUD + /* cursor down n (1) times */ + { + int limit; + + if (R <= getBottomMargin()) { + limit = getBottomMargin(); + } + else + limit = rows - 1; + + if (DCEvars[0] == 0) + R++; + else + R += DCEvars[0]; + + if (R > limit) + R = limit; + else { + if (debug > 2) debug("Not limited."); + } + + if (debug > 2) debug("to: " + R); + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " B (at C=" + C + ")"); + + break; + } + + case 'C': + if (DCEvars[0] == 0) + DCEvars[0] = 1; + + while (DCEvars[0]-- > 0) { + C++; + } + + if (C >= columns) + C = columns - 1; + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " C"); + + break; + + case 'd': // CVA + R = DCEvars[0] - 1; + + if (R < 0) + R = 0; + else if (R >= height) + R = height - 1; + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " d"); + + break; + + case 'D': + if (DCEvars[0] == 0) + DCEvars[0] = 1; + + while (DCEvars[0]-- > 0) { + C--; + } + + if (C < 0) C = 0; + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " D"); + + break; + + case 'r': // DECSTBM + if (DCEvar > 0) { // Ray: Any argument is optional + R = DCEvars[1] - 1; + + if (R < 0) + R = rows - 1; + else if (R >= rows) { + R = rows - 1; + } + } + else + R = rows - 1; + + int bot = R; + + if (R >= DCEvars[0]) { + R = DCEvars[0] - 1; + + if (R < 0) + R = 0; + } + + setMargins(R, bot); + _SetCursor(0, 0); + + if (debug > 1) + debug("ESC [" + DCEvars[0] + " ; " + DCEvars[1] + " r"); + + break; + + case 'G': /* CUP / cursor absolute column */ + C = DCEvars[0]; + + if (C < 0) + C = 0; + else if (C >= width) + C = width - 1; + + if (debug > 1) debug("ESC [ " + DCEvars[0] + " G"); + + break; + + case 'H': /* CUP / cursor position */ + /* gets 2 arguments */ + _SetCursor(DCEvars[0] - 1, DCEvars[1] - 1); + + if (debug > 2) { + debug("ESC [ " + DCEvars[0] + ";" + DCEvars[1] + " H, moveoutsidemargins " + moveoutsidemargins); + debug(" -> R now " + R + ", C now " + C); + } + + break; + + case 'f': /* move cursor 2 */ + /* gets 2 arguments */ + R = DCEvars[0] - 1; + C = DCEvars[1] - 1; + + if (C < 0) + C = 0; + else if (C >= width) + C = width - 1; + + if (R < 0) + R = 0; + else if (R >= height) + R = height - 1; + + if (debug > 2) + debug("ESC [ " + DCEvars[0] + ";" + DCEvars[1] + " f"); + + break; + + case 'S': /* ind aka 'scroll forward' */ + if (DCEvars[0] == 0) + insertLine(getBottomMargin(), SCROLL_UP); + else + insertLine(getBottomMargin(), DCEvars[0], SCROLL_UP); + + break; + + case 'L': + + /* insert n lines */ + if (DCEvars[0] == 0) + insertLine(R, SCROLL_DOWN); + else + insertLine(R, DCEvars[0], SCROLL_DOWN); + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + "" + (c) + " (at R " + R + ")"); + + break; + + case 'T': /* 'ri' aka scroll backward */ + if (DCEvars[0] == 0) + insertLine(getTopMargin(), SCROLL_DOWN); + else + insertLine(getTopMargin(), DCEvars[0], SCROLL_DOWN); + + break; + + case 'M': + if (debug > 1) + debug("ESC [ " + DCEvars[0] + "" + (c) + " at R=" + R); + + if (DCEvars[0] == 0) + deleteLine(R); + else + for (int i = 0; i < DCEvars[0]; i++) + deleteLine(R); + + break; + + case 'K': + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " K"); + + /* clear in line */ + switch (DCEvars[0]) { + case 6: /* 97801 uses ESC[6K for delete to end of line */ + case 0:/*clear to right*/ + if (C < columns - 1) + deleteArea(C, R, columns - C, 1, attributes); + + break; + + case 1:/*clear to the left, including this */ + if (C > 0) + deleteArea(0, R, C + 1, 1, attributes); + + break; + + case 2:/*clear whole line */ + deleteArea(0, R, columns, 1, attributes); + break; + } + + break; + + case 'J': + + /* clear below current line */ + switch (DCEvars[0]) { + case 0: + if (R < rows - 1) + deleteArea(0, R + 1, columns, rows - R - 1, attributes); + + if (C < columns - 1) + deleteArea(C, R, columns - C, 1, attributes); + + break; + + case 1: + if (R > 0) + deleteArea(0, 0, columns, R, attributes); + + if (C > 0) + deleteArea(0, R, C + 1, 1, attributes); // include up to and including current + + break; + + case 2: + deleteArea(0, 0, columns, rows, attributes); + break; + } + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " J"); + + break; + + case '@': + if (DCEvars[0] == 0) DCEvars[0] = 1; + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " @"); + + for (int i = 0; i < DCEvars[0]; i++) + insertChar(C, R, ' ', attributes); + + break; + + case 'X': { + int toerase = DCEvars[0]; + + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " X, C=" + C + ",R=" + R); + + if (toerase == 0) + toerase = 1; + + if (toerase + C > columns) + toerase = columns - C; + + deleteArea(C, R, toerase, 1, attributes); + // does not change cursor position + break; + } + + case 'P': + if (debug > 1) + debug("ESC [ " + DCEvars[0] + " P, C=" + C + ",R=" + R); + + if (DCEvars[0] == 0) DCEvars[0] = 1; + + for (int i = 0; i < DCEvars[0]; i++) + deleteChar(C, R); + + break; + + case 'n': + switch (DCEvars[0]) { + case 5: /* malfunction? No malfunction. */ + writeSpecial((ESC) + "[0n"); + + if (debug > 1) + debug("ESC[5n"); + + break; + + case 6: + // DO NOT offset R and C by 1! (checked against /usr/X11R6/bin/resize + // FIXME check again. + // FIXME: but vttest thinks different??? + writeSpecial((ESC) + "[" + R + ";" + C + "R"); + + if (debug > 1) + debug("ESC[6n"); + + break; + + default: + if (debug > 0) + debug("ESC [ " + DCEvars[0] + " n??"); + + break; + } + + break; + + case 's': /* DECSC - save cursor */ + Sc = C; + Sr = R; + Sa = attributes; + + if (debug > 3) + debug("ESC[s"); + + break; + + case 'u': /* DECRC - restore cursor */ + C = Sc; + R = Sr; + attributes = Sa; + + if (debug > 3) + debug("ESC[u"); + + break; + + case 'm': /* attributes as color, bold , blink,*/ + if (debug > 3) + debug("ESC [ "); + + if (DCEvar == 0 && DCEvars[0] == 0) + attributes = 0; + + for (int i = 0; i <= DCEvar; i++) { + switch (DCEvars[i]) { + case 0: + if (DCEvar > 0) { + if (terminalID.equals("scoansi")) { + attributes &= COLOR; /* Keeps color. Strange but true. */ + } + else { + attributes = 0; + } + } + + break; + + case 1: + attributes |= BOLD; + attributes &= ~LOW; + break; + + case 2: + + /* SCO color hack mode */ + if (terminalID.equals("scoansi") && ((DCEvar - i) >= 2)) { + int ncolor; + attributes &= ~(COLOR | BOLD); + ncolor = DCEvars[i + 1]; + + if ((ncolor & 8) == 8) + attributes |= BOLD; + + ncolor = ((ncolor & 1) << 2) | (ncolor & 2) | ((ncolor & 4) >> 2); + attributes |= ((ncolor) + 1) << COLOR_FG_SHIFT; + ncolor = DCEvars[i + 2]; + ncolor = ((ncolor & 1) << 2) | (ncolor & 2) | ((ncolor & 4) >> 2); + attributes |= ((ncolor) + 1) << COLOR_BG_SHIFT; + i += 2; + } + else { + attributes |= LOW; + } + + break; + + case 3: /* italics */ + attributes |= INVERT; + break; + + case 4: + attributes |= UNDERLINE; + break; + + case 7: + attributes |= INVERT; + break; + + case 8: + attributes |= INVISIBLE; + break; + + case 5: /* blink on */ + break; + + /* 10 - ANSI X3.64-1979, select primary font, don't display control + * chars, don't set bit 8 on output */ + case 10: + gl = 0; + usedcharsets = true; + break; + + /* 11 - ANSI X3.64-1979, select second alt. font, display control + * chars, set bit 8 on output */ + case 11: /* SMACS , as */ + case 12: + gl = 1; + usedcharsets = true; + break; + + case 21: /* normal intensity */ + attributes &= ~(LOW | BOLD); + break; + + case 23: /* italics off */ + attributes &= ~INVERT; + break; + + case 25: /* blinking off */ + break; + + case 27: + attributes &= ~INVERT; + break; + + case 28: + attributes &= ~INVISIBLE; + break; + + case 24: + attributes &= ~UNDERLINE; + break; + + case 22: + attributes &= ~BOLD; + break; + + case 30: + case 31: + case 32: + case 33: + case 34: + case 35: + case 36: + case 37: + attributes &= ~COLOR_FG; + attributes |= ((DCEvars[i] - 30) + 1) << COLOR_FG_SHIFT; + break; + + case 38: + if (DCEvars[i + 1] == 5) { + attributes &= ~COLOR_FG; + attributes |= ((DCEvars[i + 2]) + 1) << COLOR_FG_SHIFT; + i += 2; + } + + break; + + case 39: + attributes &= ~COLOR_FG; + break; + + case 40: + case 41: + case 42: + case 43: + case 44: + case 45: + case 46: + case 47: + attributes &= ~COLOR_BG; + attributes |= ((DCEvars[i] - 40) + 1) << COLOR_BG_SHIFT; + break; + + case 48: + if (DCEvars[i + 1] == 5) { + attributes &= ~COLOR_BG; + attributes |= (DCEvars[i + 2] + 1) << COLOR_BG_SHIFT; + i += 2; + } + + break; + + case 49: + attributes &= ~COLOR_BG; + break; + + case 90: + case 91: + case 92: + case 93: + case 94: + case 95: + case 96: + case 97: + attributes &= ~COLOR_FG; + attributes |= ((DCEvars[i] - 82) + 1) << COLOR_FG_SHIFT; + break; + + case 100: + case 101: + case 102: + case 103: + case 104: + case 105: + case 106: + case 107: + attributes &= ~COLOR_BG; + attributes |= ((DCEvars[i] - 92) + 1) << COLOR_BG_SHIFT; + break; + + default: + debugStr.append("ESC [ ") + .append(DCEvars[i]) + .append(" m unknown..."); + debug(debugStr.toString()); + debugStr.setLength(0); + break; + } + + if (debug > 3) { + debugStr.append(DCEvars[i]) + .append(';'); + debug(debugStr.toString()); + debugStr.setLength(0); + } + } + + if (debug > 3) { + debugStr.append(" (attributes = ") + .append(attributes) + .append(")m"); + debug(debugStr.toString()); + debugStr.setLength(0); + } + + break; + + default: + debugStr.append("ESC [ unknown letter: ") + .append(c) + .append(" (") + .append((int)c) + .append(')'); + debug(debugStr.toString()); + debugStr.setLength(0); + break; + } + + break; + + case TSTATE_TITLE: + switch (c) { + case ESC: + term_state = TSTATE_ESC; + break; + + default: + // TODO save title + break; + } + + break; + + default: + term_state = TSTATE_DATA; + break; + } + + setCursorPosition(C, R); + } + + /* hard reset the terminal */ + public void reset() { + gx[0] = 'B'; + gx[1] = 'B'; + gx[2] = 'B'; + gx[3] = 'B'; + gl = 0; // default GL to G0 + gr = 2; // default GR to G2 + onegl = -1; // Single shift override + /* reset tabs */ + int nw = width; + + if (nw < 132) nw = 132; + + Tabs = new byte[nw]; + + for (int i = 0; i < nw; i += 8) { + Tabs[i] = 1; + } + + deleteArea(0, 0, width, height, attributes); + setMargins(0, height); + C = R = 0; + _SetCursor(0, 0); + + if (display != null) + display.resetColors(); + + showCursor(true); + /*FIXME:*/ + term_state = TSTATE_DATA; + } +}