/*
 * $XConsortium: charproc.c,v 1.180 94/04/17 20:23:25 hersh Exp $
 */
/*
 
Copyright (c) 1988  X Consortium

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of the X Consortium shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the X Consortium.

*/
/*
 * Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
 *
 *                         All Rights Reserved
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted,
 * provided that the above copyright notice appear in all copies and that
 * both that copyright notice and this permission notice appear in
 * supporting documentation, and that the name of Digital Equipment
 * Corporation not be used in advertising or publicity pertaining to
 * distribution of the software without specific, written prior permission.
 *
 *
 * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
 * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
 * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
 * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

/* charproc.c */

#include "ptyx.h"
#include "VTparse.h"
#include "data.h"
#include "error.h"
#include "menu.h"
#include "main.h"
#include <X11/Xos.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include <X11/StringDefs.h>
#include <X11/Xmu/Atoms.h>
#include <X11/Xmu/CharSet.h>
#include <X11/Xmu/Converters.h>
#ifdef I18N
#include <X11/Xaw/XawImP.h>
#endif
#include <stdio.h>
#include <errno.h>
#include <setjmp.h>
#include <ctype.h>


/*
 * Check for both EAGAIN and EWOULDBLOCK, because some supposedly POSIX
 * systems are broken and return EWOULDBLOCK when they should return EAGAIN.
 * Note that this macro may evaluate its argument more than once.
 */
#if defined(EAGAIN) && defined(EWOULDBLOCK)
#define E_TEST(err) ((err) == EAGAIN || (err) == EWOULDBLOCK)
#else
#ifdef EAGAIN
#define E_TEST(err) ((err) == EAGAIN)
#else
#define E_TEST(err) ((err) == EWOULDBLOCK)
#endif
#endif

extern jmp_buf VTend;

extern XtAppContext app_con;
extern Widget toplevel;
extern void exit();
#ifndef X_NOT_STDC_ENV
#include <stdlib.h>
#else
extern char *malloc();
extern char *realloc();
#endif


static void VTallocbuf();
static int finput();
static void dotext();
static void WriteText();
static int in_put();
static void do_read(), do_write();
static void ToAlternate();
static void FromAlternate();
static void update_font_info();

static void bitset(), bitclr();
void ShowCursor(), HideCursor();
    
#define	DEFAULT		-1
#define	TEXT_BUF_SIZE	1024
#define TRACKTIMESEC	4L
#define TRACKTIMEUSEC	0L
#define BELLSUPPRESSMSEC 200

#define XtNalwaysHighlight 	"alwaysHighlight"
#define XtNappcursorDefault 	"appcursorDefault"
#define XtNappkeypadDefault 	"appkeypadDefault"
#define XtNbellSuppressTime 	"bellSuppressTime"
#define XtNboldFont 		"boldFont"
#define XtNc132 		"c132"
#define XtNcharClass 		"charClass"
#define XtNcurses 		"curses"
#define XtNhpLowerleftBugCompat "hpLowerleftBugCompat"
#define XtNcursorColor 		"cursorColor"
#define XtNcutNewline 		"cutNewline"
#define XtNcutToBeginningOfLine "cutToBeginningOfLine"
#define XtNeightBitInput 	"eightBitInput"
#define XtNeightBitOutput 	"eightBitOutput"
#define XtNgeometry 		"geometry"
#define XtNtekGeometry 		"tekGeometry"
#define XtNinternalBorder 	"internalBorder"
#define XtNjumpScroll 		"jumpScroll"
#ifdef ALLOWLOGGING
#define XtNlogFile 		"logFile"
#define XtNlogging 		"logging"
#define XtNlogInhibit 		"logInhibit"
#endif
#define XtNloginShell 		"loginShell"
#define XtNmarginBell 		"marginBell"
#define XtNpointerColor 	"pointerColor"
#define XtNpointerColorBackground "pointerColorBackground"
#define XtNpointerShape 	"pointerShape"
#define XtNmultiClickTime 	"multiClickTime"
#define XtNmultiScroll 		"multiScroll"
#define XtNnMarginBell 		"nMarginBell"
#define XtNresizeGravity 	"resizeGravity"
#define XtNreverseWrap 		"reverseWrap"
#define XtNautoWrap 		"autoWrap"
#define XtNsaveLines 		"saveLines"
#define XtNscrollBar 		"scrollBar"
#define XtNscrollTtyOutput 	"scrollTtyOutput"
#define XtNscrollKey 		"scrollKey"
#define XtNscrollLines 		"scrollLines"
#define XtNscrollPos 		"scrollPos"
#define XtNsignalInhibit 	"signalInhibit"
#define XtNtekInhibit 		"tekInhibit"
#define XtNtekStartup 		"tekStartup"
#define XtNtiteInhibit 		"titeInhibit"
#define XtNunderLine 		"underLine"
#define XtNvisualBell 		"visualBell"
#define XtNallowSendEvents 	"allowSendEvents"
#define XtNcolor0 		"color0"
#define XtNcolor1 		"color1"
#define XtNcolor2 		"color2"
#define XtNcolor3 		"color3"
#define XtNcolor4 		"color4"
#define XtNcolor5 		"color5"
#define XtNcolor6 		"color6"
#define XtNcolor7 		"color7"
#define XtNcolor8 		"color8"
#define XtNcolor9 		"color9"
#define XtNcolor10 		"color10"
#define XtNcolor11 		"color11"
#define XtNcolor12 		"color12"
#define XtNcolor13 		"color13"
#define XtNcolor14 		"color14"
#define XtNcolor15 		"color15"
#define XtNcolorBD 		"colorBD"
#define XtNcolorUL 		"colorUL"
#define XtNdynamicColors 	"dynamicColors"
#define XtNscrollBarRight 	"scrollBarRight"

#define XtCAlwaysHighlight 	"AlwaysHighlight"
#define XtCAppcursorDefault 	"AppcursorDefault"
#define XtCAppkeypadDefault 	"AppkeypadDefault"
#define XtCBellSuppressTime 	"BellSuppressTime"
#define XtCBoldFont 		"BoldFont"
#define XtCC132 		"C132"
#define XtCCharClass 		"CharClass"
#define XtCCurses 		"Curses"
#define XtCHpLowerleftBugCompat "HpLowerleftBugCompat"
#define XtCCutNewline 		"CutNewline"
#define XtCCutToBeginningOfLine "CutToBeginningOfLine"
#define XtCEightBitInput 	"EightBitInput"
#define XtCEightBitOutput 	"EightBitOutput"
#define XtCGeometry 		"Geometry"
#define XtCJumpScroll 		"JumpScroll"
#ifdef ALLOWLOGGING
#define XtCLogfile 		"Logfile"
#define XtCLogging 		"Logging"
#define XtCLogInhibit 		"LogInhibit"
#endif
#define XtCLoginShell 		"LoginShell"
#define XtCMarginBell 		"MarginBell"
#define XtCMultiClickTime 	"MultiClickTime"
#define XtCMultiScroll 		"MultiScroll"
#define XtCColumn 		"Column"
#define XtCResizeGravity 	"ResizeGravity"
#define XtCReverseWrap 		"ReverseWrap"
#define XtCAutoWrap 		"AutoWrap"
#define XtCSaveLines 		"SaveLines"
#define XtCScrollBar 		"ScrollBar"
#define XtCScrollLines 		"ScrollLines"
#define XtCScrollPos 		"ScrollPos"
#define XtCScrollCond 		"ScrollCond"
#define XtCSignalInhibit 	"SignalInhibit"
#define XtCTekInhibit 		"TekInhibit"
#define XtCTekStartup 		"TekStartup"
#define XtCTiteInhibit 		"TiteInhibit"
#define XtCUnderLine 		"UnderLine"
#define XtCVisualBell 		"VisualBell"
#define XtCAllowSendEvents 	"AllowSendEvents"
#define XtCDynamicColors 	"DynamicColors"
#define XtCScrollBarRight 	"ScrollBarRight"

#define	doinput()		(bcnt-- > 0 ? *bptr++ : in_put())

static int nparam;
static ANSI reply;
static int param[NPARAM];

static unsigned long ctotal;
static unsigned long ntotal;
static jmp_buf vtjmpbuf;

extern int groundtable[];
extern int csitable[];
extern int dectable[];
extern int eigtable[];
extern int esctable[];
extern int iestable[];
extern int igntable[];
extern int scrtable[];
extern int scstable[];


/* event handlers */
extern void HandleKeyPressed(), HandleEightBitKeyPressed();
extern void HandleStringEvent();
extern void HandleEnterWindow();
extern void HandleLeaveWindow();
extern void HandleBellPropertyChange();
extern void HandleFocusChange();
static void HandleKeymapChange();
extern void HandleInsertSelection();
extern void HandleSelectStart(), HandleKeyboardSelectStart();
extern void HandleSelectExtend(), HandleSelectSet();
extern void HandleSelectEnd(), HandleKeyboardSelectEnd();
extern void HandleStartExtend(), HandleKeyboardStartExtend();
static void HandleBell();
static void HandleVisualBell();
static void HandleIgnore();
extern void HandleSecure();
extern void HandleScrollForward();
extern void HandleScrollBack();
extern void HandleCreateMenu(), HandlePopupMenu();
extern void HandleSetFont();
extern void SetVTFont();

extern void ViButton(), DiredButton();
extern Boolean SendMousePosition();
extern void ScrnSetAttributes();

/*
 * NOTE: VTInitialize zeros out the entire ".screen" component of the 
 * XgtermWidget, so make sure to add an assignment statement in VTInitialize() 
 * for each new ".screen" field added to this resource list.
 */

/* Defaults */
static  Boolean	defaultFALSE	   = FALSE;
static  Boolean	defaultTRUE	   = TRUE;
static  int	defaultBorderWidth = DEFBORDERWIDTH;
static  int	defaultIntBorder   = DEFBORDER;
static  int	defaultSaveLines   = SAVELINES;
static	int	defaultScrollLines = SCROLLLINES;
static  int	defaultNMarginBell = N_MARGINBELL;
static  int	defaultMultiClickTime = MULTICLICKTIME;
static  int	defaultBellSuppressTime = BELLSUPPRESSMSEC;
static	char *	_Font_Selected_ = "yes";  /* string is arbitrary */

/*
 * Warning, the following must be kept under 1024 bytes or else some 
 * compilers (particularly AT&T 6386 SVR3.2) will barf).  Workaround is to
 * declare a static buffer and copy in at run time (the the Athena text widget
 * does).  Yuck.
 */
static char defaultTranslations[] =
"\
 Shift <KeyPress> Prior:scroll-back(1,halfpage) \n\
  Shift <KeyPress> Next:scroll-forw(1,halfpage) \n\
Shift <KeyPress> Select:select-cursor-start() select-cursor-end(PRIMARY, CUT_BUFFER0) \n\
Shift <KeyPress> Insert:insert-selection(PRIMARY, CUT_BUFFER0) \n\
       ~Meta <KeyPress>:insert-seven-bit() \n\
        Meta <KeyPress>:insert-eight-bit() \n\
       !Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
  !Lock Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
       ~Meta <Btn1Down>:select-start() \n\
     ~Meta <Btn1Motion>:select-extend() \n\
       !Ctrl <Btn2Down>:popup-menu(fontMenu) \n\
  !Lock Ctrl <Btn2Down>:popup-menu(fontMenu) \n\
 ~Ctrl ~Meta <Btn2Down>:ignore() \n\
   ~Ctrl ~Meta <Btn2Up>:insert-selection(PRIMARY, CUT_BUFFER0) \n\
       !Ctrl <Btn3Down>:popup-menu(vtMenu) \n\
  !Lock Ctrl <Btn3Down>:popup-menu(vtMenu) \n\
 ~Ctrl ~Meta <Btn3Down>:start-extend() \n\
     ~Meta <Btn3Motion>:select-extend()	\n\
                <BtnUp>:select-end(PRIMARY, CUT_BUFFER0) \n\
	      <BtnDown>:bell(0) \
";

static XtActionsRec actionsList[] = { 
    { "bell",		  HandleBell },
    { "create-menu",	  HandleCreateMenu },
    { "ignore",		  HandleIgnore },
    { "insert",		  HandleKeyPressed },  /* alias for insert-seven-bit */
    { "insert-seven-bit", HandleKeyPressed },
    { "insert-eight-bit", HandleEightBitKeyPressed },
    { "insert-selection", HandleInsertSelection },
    { "keymap", 	  HandleKeymapChange },
    { "popup-menu",	  HandlePopupMenu },
    { "secure",		  HandleSecure },
    { "select-start",	  HandleSelectStart },
    { "select-extend",	  HandleSelectExtend },
    { "select-end",	  HandleSelectEnd },
    { "select-set",	  HandleSelectSet },
    { "select-cursor-start",	  HandleKeyboardSelectStart },
    { "select-cursor-end",	  HandleKeyboardSelectEnd },
    { "set-vt-font",	  HandleSetFont },
    { "start-extend",	  HandleStartExtend },
    { "start-cursor-extend",	  HandleKeyboardStartExtend },
    { "string",		  HandleStringEvent },
    { "scroll-forw",	  HandleScrollForward },
    { "scroll-back",	  HandleScrollBack },
    /* menu actions */
    { "allow-send-events",	HandleAllowSends },
    { "set-visual-bell",	HandleSetVisualBell },
#ifdef ALLOWLOGGING
    { "set-logging",		HandleLogging },
#endif
    { "redraw",			HandleRedraw },
    { "send-signal",		HandleSendSignal },
    { "quit",			HandleQuit },
    { "set-scrollbar",		HandleScrollbar },
    { "set-jumpscroll",		HandleJumpscroll },
    { "set-reverse-video",	HandleReverseVideo },
    { "set-autowrap",		HandleAutoWrap },
    { "set-reversewrap",	HandleReverseWrap },
    { "set-autolinefeed",	HandleAutoLineFeed },
    { "set-appcursor",		HandleAppCursor },
    { "set-appkeypad",		HandleAppKeypad },
    { "set-scroll-on-key",	HandleScrollKey },
    { "set-scroll-on-tty-output",	HandleScrollTtyOutput },
    { "set-allow132",		HandleAllow132 },
    { "set-cursesemul",		HandleCursesEmul },
    { "set-marginbell",		HandleMarginBell },
    { "set-altscreen",		HandleAltScreen },
    { "soft-reset",		HandleSoftReset },
    { "hard-reset",		HandleHardReset },
    { "clear-saved-lines",	HandleClearSavedLines },
    { "set-terminal-type",	HandleSetTerminalType },
    { "set-visibility",		HandleVisibility },
    { "tek-page",		HandleTekPage },
    { "tek-reset",		HandleTekReset },
    { "tek-copy",		HandleTekCopy },
    { "visual-bell",		HandleVisualBell },
    { "dired-button", 		DiredButton },
    { "vi-button", 		ViButton },
};

static XtResource resources[] = {
{XtNfont, XtCFont, XtRString, sizeof(char *),
	XtOffsetOf(XgtermWidgetRec, misc.f_n), XtRString,
	DEFFONT},
{XtNboldFont, XtCBoldFont, XtRString, sizeof(char *),
	XtOffsetOf(XgtermWidgetRec, misc.f_b), XtRString,
	DEFBOLDFONT},
{XtNc132, XtCC132, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.c132),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNcharClass, XtCCharClass, XtRString, sizeof(char *),
	XtOffsetOf(XgtermWidgetRec, screen.charClass),
	XtRString, (XtPointer) NULL},
{XtNcurses, XtCCurses, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.curses),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNhpLowerleftBugCompat, XtCHpLowerleftBugCompat, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.hp_ll_bc),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNcutNewline, XtCCutNewline, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.cutNewline),
	XtRBoolean, (XtPointer) &defaultTRUE},
{XtNcutToBeginningOfLine, XtCCutToBeginningOfLine, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.cutToBeginningOfLine),
	XtRBoolean, (XtPointer) &defaultTRUE},
{XtNbackground, XtCBackground, XtRPixel, sizeof(Pixel),
	XtOffsetOf(XgtermWidgetRec, core.background_pixel),
	XtRString, "XtDefaultBackground"},
{XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel),
	XtOffsetOf(XgtermWidgetRec, screen.foreground),
	XtRString, "XtDefaultForeground"},
{XtNcursorColor, XtCForeground, XtRPixel, sizeof(Pixel),
	XtOffsetOf(XgtermWidgetRec, screen.cursorcolor),
	XtRString, "XtDefaultForeground"},
{XtNeightBitInput, XtCEightBitInput, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.input_eight_bits), 
	XtRBoolean, (XtPointer) &defaultTRUE},
{XtNeightBitOutput, XtCEightBitOutput, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.output_eight_bits), 
	XtRBoolean, (XtPointer) &defaultTRUE},
{XtNgeometry,XtCGeometry, XtRString, sizeof(char *),
	XtOffsetOf(XgtermWidgetRec, misc.geo_metry),
	XtRString, (XtPointer) NULL},
{XtNalwaysHighlight,XtCAlwaysHighlight,XtRBoolean,
        sizeof(Boolean),XtOffsetOf(XgtermWidgetRec, screen.always_highlight),
        XtRBoolean, (XtPointer) &defaultFALSE},
{XtNappcursorDefault,XtCAppcursorDefault,XtRBoolean,
        sizeof(Boolean),XtOffsetOf(XgtermWidgetRec, misc.appcursorDefault),
        XtRBoolean, (XtPointer) &defaultFALSE},
{XtNappkeypadDefault,XtCAppkeypadDefault,XtRBoolean,
        sizeof(Boolean),XtOffsetOf(XgtermWidgetRec, misc.appkeypadDefault),
        XtRBoolean, (XtPointer) &defaultFALSE},
{XtNbellSuppressTime, XtCBellSuppressTime, XtRInt, sizeof(int),
        XtOffsetOf(XgtermWidgetRec, screen.bellSuppressTime),
        XtRInt, (XtPointer) &defaultBellSuppressTime},
{XtNtekGeometry,XtCGeometry, XtRString, sizeof(char *),
	XtOffsetOf(XgtermWidgetRec, misc.T_geometry),
	XtRString, (XtPointer) NULL},
{XtNalwaysHighlight,XtCAlwaysHighlight,XtRBoolean,
        sizeof(Boolean),XtOffset(XgtermWidget, screen.always_highlight),
        XtRBoolean, (XtPointer) &defaultFALSE},
{XtNinternalBorder,XtCBorderWidth,XtRInt, sizeof(int),
	XtOffsetOf(XgtermWidgetRec, screen.border),
	XtRInt, (XtPointer) &defaultIntBorder},
{XtNjumpScroll, XtCJumpScroll, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.jumpscroll),
	XtRBoolean, (XtPointer) &defaultTRUE},
#ifdef ALLOWLOGGING
{XtNlogFile, XtCLogfile, XtRString, sizeof(char *),
	XtOffsetOf(XgtermWidgetRec, screen.logfile),
	XtRString, (XtPointer) NULL},
{XtNlogging, XtCLogging, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, misc.log_on),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNlogInhibit, XtCLogInhibit, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, misc.logInhibit),
	XtRBoolean, (XtPointer) &defaultFALSE},
#endif
{XtNloginShell, XtCLoginShell, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, misc.login_shell),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNmarginBell, XtCMarginBell, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.marginbell),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNpointerColor, XtCForeground, XtRPixel, sizeof(Pixel),
	XtOffsetOf(XgtermWidgetRec, screen.mousecolor),
	XtRString, "XtDefaultForeground"},
{XtNpointerColorBackground, XtCBackground, XtRPixel, sizeof(Pixel),
	XtOffsetOf(XgtermWidgetRec, screen.mousecolorback),
	XtRString, "XtDefaultBackground"},
{XtNpointerShape,XtCCursor, XtRCursor, sizeof(Cursor),
	XtOffsetOf(XgtermWidgetRec, screen.pointer_cursor),
	XtRString, (XtPointer) "xterm"},
{XtNmultiClickTime,XtCMultiClickTime, XtRInt, sizeof(int),
	XtOffsetOf(XgtermWidgetRec, screen.multiClickTime),
	XtRInt, (XtPointer) &defaultMultiClickTime},
{XtNmultiScroll,XtCMultiScroll, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.multiscroll),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNnMarginBell,XtCColumn, XtRInt, sizeof(int),
	XtOffsetOf(XgtermWidgetRec, screen.nmarginbell),
	XtRInt, (XtPointer) &defaultNMarginBell},
{XtNreverseVideo,XtCReverseVideo,XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, misc.re_verse),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNresizeGravity, XtCResizeGravity, XtRGravity, sizeof(XtGravity),
	XtOffsetOf(XgtermWidgetRec, misc.resizeGravity),
	XtRImmediate, (XtPointer) SouthWestGravity},
{XtNreverseWrap,XtCReverseWrap, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, misc.reverseWrap),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNautoWrap,XtCAutoWrap, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, misc.autoWrap),
	XtRBoolean, (XtPointer) &defaultTRUE},
{XtNsaveLines, XtCSaveLines, XtRInt, sizeof(int),
	XtOffsetOf(XgtermWidgetRec, screen.savelines),
	XtRInt, (XtPointer) &defaultSaveLines},
{XtNscrollBar, XtCScrollBar, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, misc.scrollbar),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNscrollTtyOutput,XtCScrollCond, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.scrollttyoutput),
	XtRBoolean, (XtPointer) &defaultTRUE},
{XtNscrollKey, XtCScrollCond, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.scrollkey),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNscrollLines, XtCScrollLines, XtRInt, sizeof(int),
	XtOffsetOf(XgtermWidgetRec, screen.scrolllines),
	XtRInt, (XtPointer) &defaultScrollLines},
{XtNsignalInhibit,XtCSignalInhibit,XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, misc.signalInhibit),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNtekInhibit, XtCTekInhibit, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, misc.tekInhibit),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNtekStartup, XtCTekStartup, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.TekEmu),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNtiteInhibit, XtCTiteInhibit, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, misc.titeInhibit),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNunderLine, XtCUnderLine, XtRBoolean, sizeof(Boolean),
        XtOffsetOf(XgtermWidgetRec, screen.underline),
        XtRBoolean, (XtPointer) &defaultFALSE},
{XtNvisualBell, XtCVisualBell, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.visualbell),
	XtRBoolean, (XtPointer) &defaultFALSE},
{XtNallowSendEvents, XtCAllowSendEvents, XtRBoolean, sizeof(Boolean),
	XtOffsetOf(XgtermWidgetRec, screen.allowSendEvents),
	XtRBoolean, (XtPointer) &defaultTRUE},
{"font1", "Font1", XtRString, sizeof(String),
	XtOffsetOf(XgtermWidgetRec, screen.menu_font_names[fontMenu_font1]),
	XtRString, (XtPointer) NULL},
{"font2", "Font2", XtRString, sizeof(String),
	XtOffsetOf(XgtermWidgetRec, screen.menu_font_names[fontMenu_font2]),
	XtRString, (XtPointer) NULL},
{"font3", "Font3", XtRString, sizeof(String),
	XtOffsetOf(XgtermWidgetRec, screen.menu_font_names[fontMenu_font3]),
	XtRString, (XtPointer) NULL},
{"font4", "Font4", XtRString, sizeof(String),
	XtOffsetOf(XgtermWidgetRec, screen.menu_font_names[fontMenu_font4]),
	XtRString, (XtPointer) NULL},
{"font5", "Font5", XtRString, sizeof(String),
	XtOffsetOf(XgtermWidgetRec, screen.menu_font_names[fontMenu_font5]),
	XtRString, (XtPointer) NULL},
{"font6", "Font6", XtRString, sizeof(String),
	XtOffsetOf(XgtermWidgetRec, screen.menu_font_names[fontMenu_font6]),
	XtRString, (XtPointer) NULL},
#ifdef I18N
  {XtNinputMethod, XtCInputMethod, XtRString, sizeof(char*),
                XtOffsetOf(XgtermWidgetRec, misc.input_method),
                XtRString, (XtPointer)NULL},
  {XtNpreeditType, XtCPreeditType, XtRString, sizeof(char*),
                XtOffsetOf(XgtermWidgetRec, misc.preedit_type),
                XtRString, (XtPointer)"Root"},
  {XtNopenIm, XtCOpenIm, XtRBoolean, sizeof(Boolean),
                XtOffsetOf(XgtermWidgetRec, misc.open_im),
                XtRImmediate, (XtPointer)TRUE},
#endif
{XtNcolor0, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_0]),
        XtRString, "XtDefaultForeground"},
{XtNcolor1, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_1]),
        XtRString, "XtDefaultForeground"},
{XtNcolor2, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_2]),
        XtRString, "XtDefaultForeground"},
{XtNcolor3, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_3]),
        XtRString, "XtDefaultForeground"},
{XtNcolor4, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_4]),
        XtRString, "XtDefaultForeground"},
{XtNcolor5, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_5]),
        XtRString, "XtDefaultForeground"},
{XtNcolor6, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_6]),
        XtRString, "XtDefaultForeground"},
{XtNcolor7, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_7]),
        XtRString, "XtDefaultForeground"},
{XtNcolor8, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_8]),
        XtRString, "XtDefaultForeground"},
{XtNcolor9, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_9]),
        XtRString, "XtDefaultForeground"},
{XtNcolor10, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_10]),
        XtRString, "XtDefaultForeground"},
{XtNcolor11, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_11]),
        XtRString, "XtDefaultForeground"},
{XtNcolor12, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_12]),
        XtRString, "XtDefaultForeground"},
{XtNcolor13, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_13]),
        XtRString, "XtDefaultForeground"},
{XtNcolor14, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_14]),
        XtRString, "XtDefaultForeground"},
{XtNcolor15, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_15]),
        XtRString, "XtDefaultForeground"},
{XtNcolorBD, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_BD]),
        XtRString, "XtDefaultForeground"},
{XtNcolorUL, XtCForeground, XtRPixel, sizeof(Pixel),
        XtOffsetOf(XgtermWidgetRec, screen.colors[COLOR_UL]),
        XtRString, "XtDefaultForeground"},
{XtNdynamicColors, XtCDynamicColors, XtRBoolean, sizeof(Boolean),
        XtOffsetOf(XgtermWidgetRec, misc.dynamicColors),
        XtRBoolean, (XtPointer) &defaultFALSE},
{XtNscrollBarRight, XtCScrollBarRight, XtRBoolean, sizeof(Boolean),
        XtOffsetOf(XgtermWidgetRec, misc.sb_right),
        XtRBoolean, (XtPointer) &defaultFALSE},
};

static void VTClassInit();
static void VTInitialize();
static void VTRealize();
static void VTExpose();
static void VTResize();
static void VTDestroy();
static Boolean VTSetValues();
#ifdef I18N
static void VTInitI18N();
#endif

static WidgetClassRec xgtermClassRec = {
  {
/* core_class fields */	
    /* superclass	  */	(WidgetClass) &widgetClassRec,
    /* class_name	  */	"VT100",
    /* widget_size	  */	sizeof(XgtermWidgetRec),
    /* class_initialize   */    VTClassInit,
    /* class_part_initialize */ NULL,
    /* class_inited       */	FALSE,
    /* initialize	  */	VTInitialize,
    /* initialize_hook    */    NULL,				
    /* realize		  */	VTRealize,
    /* actions		  */	actionsList,
    /* num_actions	  */	XtNumber(actionsList),
    /* resources	  */	resources,
    /* num_resources	  */	XtNumber(resources),
    /* xrm_class	  */	NULLQUARK,
    /* compress_motion	  */	TRUE,
    /* compress_exposure  */	FALSE,
    /* compress_enterleave */   TRUE,
    /* visible_interest	  */	FALSE,
    /* destroy		  */	VTDestroy,
    /* resize		  */	VTResize,
    /* expose		  */	VTExpose,
    /* set_values	  */	VTSetValues,
    /* set_values_hook    */    NULL,
    /* set_values_almost  */    NULL,
    /* get_values_hook    */    NULL,
    /* accept_focus	  */	NULL,
    /* version            */    XtVersion,
    /* callback_offsets   */    NULL,
    /* tm_table           */    defaultTranslations,
    /* query_geometry     */    XtInheritQueryGeometry,
    /* display_accelerator*/    XtInheritDisplayAccelerator,
    /* extension          */    NULL
  }
};

WidgetClass xgtermWidgetClass = (WidgetClass)&xgtermClassRec;

static void VTparse()
{
	register TScreen *screen = &term->screen;
	register int *parsestate = groundtable;
	register unsigned int c;
	register unsigned char *cp;
	register int row, col, top, bot, scstype;
	extern int TrackMouse();

	if(setjmp(vtjmpbuf))
		parsestate = groundtable;
	for( ; ; ) {
	        switch (parsestate[c = doinput()]) {
		 case CASE_PRINT:
			/* printable characters */
			top = bcnt > TEXT_BUF_SIZE ? TEXT_BUF_SIZE : bcnt;
			cp = bptr;
			*--bptr = c;
			while(top > 0 && isprint(*cp & 0x7f)) {
				top--;
				bcnt--;
				cp++;
			}
			if(screen->curss) {
				dotext(screen, term->flags,
				 screen->gsets[screen->curss], bptr, bptr + 1,
                                        term->cur_foreground,
                                        term->cur_background );
				screen->curss = 0;
				bptr++;
			}
			if(bptr < cp)
				dotext(screen, term->flags,
				 screen->gsets[screen->curgl], bptr, cp,
                                        term->cur_foreground,
                                        term->cur_background );
			bptr = cp;
			break;

		 case CASE_GROUND_STATE:
			/* exit ignore mode */
			parsestate = groundtable;
			break;

		 case CASE_IGNORE_STATE:
			/* Ies: ignore anything else */
			parsestate = igntable;
			break;

		 case CASE_IGNORE_ESC:
			/* Ign: escape */
			parsestate = iestable;
			break;

		 case CASE_IGNORE:
			/* Ignore character */
			break;

		 case CASE_BELL:
			/* bell */
			Bell();
			break;

		 case CASE_BS:
			/* backspace */
			CursorBack(screen, 1);
			break;

		 case CASE_CR:
			/* carriage return */
			CarriageReturn(screen);
			parsestate = groundtable;
			break;

		 case CASE_ESC:
			/* escape */
			parsestate = esctable;
			break;

		 case CASE_VMOT:
			/*
			 * form feed, line feed, vertical tab
			 */
			Index(screen, 1);
			if (term->flags & LINEFEED)
				CarriageReturn(screen);
			if (XtAppPending(app_con) ||
			    GetBytesAvailable (ConnectionNumber(screen->display)) > 0)
			  xevents();
			parsestate = groundtable;
			break;

		 case CASE_TAB:
			/* tab */
			screen->cur_col = TabNext(term->tabs, screen->cur_col);
			if (screen->cur_col > screen->max_col)
				screen->cur_col = screen->max_col;
			break;

		 case CASE_SI:
			screen->curgl = 0;
			break;

		 case CASE_SO:
			screen->curgl = 1;
			break;

		 case CASE_SCR_STATE:
			/* enter scr state */
			parsestate = scrtable;
			break;

		 case CASE_SCS0_STATE:
			/* enter scs state 0 */
			scstype = 0;
			parsestate = scstable;
			break;

		 case CASE_SCS1_STATE:
			/* enter scs state 1 */
			scstype = 1;
			parsestate = scstable;
			break;

		 case CASE_SCS2_STATE:
			/* enter scs state 2 */
			scstype = 2;
			parsestate = scstable;
			break;

		 case CASE_SCS3_STATE:
			/* enter scs state 3 */
			scstype = 3;
			parsestate = scstable;
			break;

		 case CASE_ESC_IGNORE:
			/* unknown escape sequence */
			parsestate = eigtable;
			break;

		 case CASE_ESC_DIGIT:
			/* digit in csi or dec mode */
			if((row = param[nparam - 1]) == DEFAULT)
				row = 0;
			param[nparam - 1] = 10 * row + (c - '0');
			break;

		 case CASE_ESC_SEMI:
			/* semicolon in csi or dec mode */
			param[nparam++] = DEFAULT;
			break;

		 case CASE_DEC_STATE:
			/* enter dec mode */
			parsestate = dectable;
			break;

		 case CASE_ICH:
			/* ICH */
			if((row = param[0]) < 1)
				row = 1;
			InsertChar(screen, row);
			parsestate = groundtable;
			break;

		 case CASE_CUU:
			/* CUU */
			if((row = param[0]) < 1)
				row = 1;
			CursorUp(screen, row);
			parsestate = groundtable;
			break;

		 case CASE_CUD:
			/* CUD */
			if((row = param[0]) < 1)
				row = 1;
			CursorDown(screen, row);
			parsestate = groundtable;
			break;

		 case CASE_CUF:
			/* CUF */
			if((row = param[0]) < 1)
				row = 1;
			CursorForward(screen, row);
			parsestate = groundtable;
			break;

		 case CASE_CUB:
			/* CUB */
			if((row = param[0]) < 1)
				row = 1;
			CursorBack(screen, row);
			parsestate = groundtable;
			break;

		 case CASE_CUP:
			/* CUP | HVP */
			if((row = param[0]) < 1)
				row = 1;
			if(nparam < 2 || (col = param[1]) < 1)
				col = 1;
			CursorSet(screen, row-1, col-1, term->flags);
			parsestate = groundtable;
			break;

		 case CASE_HP_BUGGY_LL:
			/* Some HP-UX applications have the bug that they
			   assume ESC F goes to the lower left corner of
			   the screen, regardless of what terminfo says. */
			if (screen->hp_ll_bc)
			    CursorSet(screen, screen->max_row, 0, term->flags);
			parsestate = groundtable;
			break;

		 case CASE_ED:
			/* ED */
			switch (param[0]) {
			 case DEFAULT:
			 case 0:
				ClearBelow(screen);
				break;

			 case 1:
				ClearAbove(screen);
				break;

			 case 2:
				ClearScreen(screen);
                                CursorSet(screen, 0, 0, term->flags);
				break;
			}
			parsestate = groundtable;
			break;

		 case CASE_EL:
			/* EL */
			switch (param[0]) {
			 case DEFAULT:
			 case 0:
				ClearRight(screen);
				break;
			 case 1:
				ClearLeft(screen);
				break;
			 case 2:
				ClearLine(screen);
				break;
			}
			parsestate = groundtable;
			break;

		 case CASE_IL:
			/* IL */
			if((row = param[0]) < 1)
				row = 1;
			InsertLine(screen, row);
			parsestate = groundtable;
			break;

		 case CASE_DL:
			/* DL */
			if((row = param[0]) < 1)
				row = 1;
			DeleteLine(screen, row);
			parsestate = groundtable;
			break;

		 case CASE_DCH:
			/* DCH */
			if((row = param[0]) < 1)
				row = 1;
			DeleteChar(screen, row);
			parsestate = groundtable;
			break;

		 case CASE_TRACK_MOUSE:
		 	/* Track mouse as long as in window and between
			   specified rows */
			TrackMouse(param[0], param[2]-1, param[1]-1,
			 param[3]-1, param[4]-2);
			break;

		 case CASE_DECID:
			param[0] = -1;		/* Default ID parameter */
			/* Fall through into ... */
		 case CASE_DA1:
			/* DA1 */
			if (param[0] <= 0) {	/* less than means DEFAULT */
				reply.a_type   = CSI;
				reply.a_pintro = '?';
				reply.a_nparam = 2;
				reply.a_param[0] = 1;		/* VT102 */
				reply.a_param[1] = 2;		/* VT102 */
				reply.a_inters = 0;
				reply.a_final  = 'c';
				unparseseq(&reply, screen->respond);
			}
			parsestate = groundtable;
			break;

		 case CASE_TBC:
			/* TBC */
			if ((row = param[0]) <= 0) /* less than means default */
				TabClear(term->tabs, screen->cur_col);
			else if (row == 3)
				TabZonk(term->tabs);
			parsestate = groundtable;
			break;

		 case CASE_SET:
			/* SET */
			ansi_modes(term, bitset);
			parsestate = groundtable;
			break;

		 case CASE_RST:
			/* RST */
			ansi_modes(term, bitclr);
			parsestate = groundtable;
			break;

		 case CASE_SGR:
			/* SGR */
			for (row=0; row<nparam; ++row) {
				switch (param[row]) {
				 case DEFAULT:
				 case 0:
					term->flags &= 
					    ~(INVERSE|BOLD|UNDERLINE|FG_COLOR|BG_COLOR);
					break;
				 case 1:
				 case 5:	/* Blink, really.	*/
					term->flags |= BOLD;
					if (term->misc.dynamicColors) {
                                          if (!(term->flags & FG_COLOR) ||
                                            (term->cur_foreground==COLOR_UL)) {
                                                term->flags |= FG_COLOR;
                                                term->cur_foreground = COLOR_BD;
                                          } else {   /* Set highlight bit */
                                            if (term->cur_foreground < 8)
                                              term->cur_foreground |= 8;
                                          }
					}
					break;
				 case 4:	/* Underscore		*/
					term->flags |= UNDERLINE;
					if (term->misc.dynamicColors) {
/**/                                      if (!(term->flags & FG_COLOR)) {
                                            term->flags |= FG_COLOR;
                                            term->cur_foreground = COLOR_UL;
                                          }
                                        }
					break;
				 case 7:
					term->flags |= INVERSE;
					break;
                                 case 30:
                                 case 31:
                                 case 32:
                                 case 33:
                                 case 34:
                                 case 35:
                                 case 36:
                                 case 37:
                                        term->flags |= FG_COLOR;
                                        term->cur_foreground = param[row] - 30;
                                        /* Set highlight bit if bold on */
                                        if (term->flags & BOLD)
                                          term->cur_foreground |= 8;
                                        break;
                                 case 40:
                                 case 41:
                                 case 42:
                                 case 43:
                                 case 44:
                                 case 45:
                                 case 46:
                                 case 47:
                                        term->flags |= BG_COLOR;
                                        term->cur_background = param[row] - 40;
                                        break;
				}
			}
			parsestate = groundtable;
			break;

		 case CASE_CPR:
			/* CPR */
			if ((row = param[0]) == 5) {
				reply.a_type = CSI;
				reply.a_pintro = 0;
				reply.a_nparam = 1;
				reply.a_param[0] = 0;
				reply.a_inters = 0;
				reply.a_final  = 'n';
				unparseseq(&reply, screen->respond);
			} else if (row == 6) {
				reply.a_type = CSI;
				reply.a_pintro = 0;
				reply.a_nparam = 2;
				reply.a_param[0] = screen->cur_row+1;
				reply.a_param[1] = screen->cur_col+1;
				reply.a_inters = 0;
				reply.a_final  = 'R';
				unparseseq(&reply, screen->respond);
			}
			parsestate = groundtable;
			break;

		 case CASE_HP_MEM_LOCK:
		 case CASE_HP_MEM_UNLOCK:
			if(screen->scroll_amt)
			    FlushScroll(screen);
			if (parsestate[c] == CASE_HP_MEM_LOCK)
			    screen->top_marg = screen->cur_row;
			else
			    screen->top_marg = 0;
			parsestate = groundtable;
			break;

		 case CASE_DECSTBM:
			/* DECSTBM - set scrolling region */
			if((top = param[0]) < 1)
				top = 1;
			if(nparam < 2 || (bot = param[1]) == DEFAULT
			   || bot > screen->max_row + 1
			   || bot == 0)
				bot = screen->max_row+1;
			if (bot > top) {
				if(screen->scroll_amt)
					FlushScroll(screen);
				screen->top_marg = top-1;
				screen->bot_marg = bot-1;
				CursorSet(screen, 0, 0, term->flags);
			}
			parsestate = groundtable;
			break;

                 case CASE_SUNREQTPARM:
                        /* Escape commands or query functions used by the
                         * SunView shelltool (ttysw widget).  Most of these
                         * are currently stubbed out.
                         */
                        if ((row = param[0]) == DEFAULT)
                                row = 18;
                        switch (row) {
                        case 1:
                            /* open */
                            break;
                        case 2:
                            /* close */
                            break;
                        case 3:
                            /* move */
                            break;
                        case 4:
                            /* resize */
                            break;
                        case 5:
                            /* front */
                            break;
                        case 6:
                            /* back */
                            break;
                        case 7:
                            /* refresh */
                            break;
                        case 11:
                            /* report if open or iconic by sending
                             * \E[1t or \E[2t.
                             */
                            break;
                        case 13:
                            /* report position by sending \E[3;TOP;LEFTt
                             */
                            break;
                        case 14:
                            /* report size in pixels by sending \E[4;HT;WIDTHt.
                             */
                            break;
                        case 18:
                            /* report size in characters by sending
                             * \E[8;ROWS;COLSt.
                             */
                            reply.a_type = ESC;
                            reply.a_pintro = '[';
                            reply.a_nparam = 3;
                            reply.a_param[0] = 8;
                            reply.a_param[1] = screen->max_row + 1;
                            reply.a_param[2] = screen->max_col + 1;
                            reply.a_inters = 0;
                            reply.a_final  = 't';
                            unparseseq(&reply, screen->respond);
                            break;
                        case 20:
                            /* report icon label by sending \E]Llabel\E\.
                             */
                            break;
                        case 21:
                            /* report tool header by sending \E]llabel\E\.
                             */
                            break;
                        }
                        parsestate = groundtable;
                        break;

		 case CASE_DECREQTPARM:
			/* DECREQTPARM */
			if ((row = param[0]) == DEFAULT)
				row = 0;
			if (row == 0 || row == 1) {
				reply.a_type = CSI;
				reply.a_pintro = 0;
				reply.a_nparam = 7;
				reply.a_param[0] = row + 2;
				reply.a_param[1] = 1;	/* no parity */
				reply.a_param[2] = 1;	/* eight bits */
				reply.a_param[3] = 112;	/* transmit 9600 baud */
				reply.a_param[4] = 112;	/* receive 9600 baud */
				reply.a_param[5] = 1;	/* clock multiplier ? */
				reply.a_param[6] = 0;	/* STP flags ? */
				reply.a_inters = 0;
				reply.a_final  = 'x';
				unparseseq(&reply, screen->respond);
			}
			parsestate = groundtable;
			break;

		 case CASE_DECSET:
			/* DECSET */
			dpmodes(term, bitset);
			parsestate = groundtable;
			break;

		 case CASE_DECRST:
			/* DECRST */
			dpmodes(term, bitclr);
			parsestate = groundtable;
			break;

		 case CASE_DECALN:
			/* DECALN */
			if(screen->cursor_state)
				HideCursor();
			for(row = screen->max_row ; row >= 0 ; row--) {
				memset(screen->buf[4 * row + 1], 0,
				 col = screen->max_col + 1);
				for(cp = (unsigned char *)screen->buf[4 * row] ; col > 0 ; col--)
					*cp++ = (unsigned char) 'E';
			}
			ScrnRefresh(screen, 0, 0, screen->max_row + 1,
			 screen->max_col + 1, False);
			parsestate = groundtable;
			break;

		 case CASE_GSETS:
			screen->gsets[scstype] = c;
			parsestate = groundtable;
			break;

		 case CASE_DECSC:
			/* DECSC */
			CursorSave(term, &screen->sc);
			parsestate = groundtable;
			break;

		 case CASE_DECRC:
			/* DECRC */
			CursorRestore(term, &screen->sc);
			parsestate = groundtable;
			break;

		 case CASE_DECKPAM:
			/* DECKPAM */
			term->keyboard.flags |= KYPD_APL;
			update_appkeypad();
			parsestate = groundtable;
			break;

		 case CASE_DECKPNM:
			/* DECKPNM */
			term->keyboard.flags &= ~KYPD_APL;
			update_appkeypad();
			parsestate = groundtable;
			break;

		 case CASE_IND:
			/* IND */
			Index(screen, 1);
			if (XtAppPending(app_con) ||
			    GetBytesAvailable (ConnectionNumber(screen->display)) > 0)
			  xevents();
			parsestate = groundtable;
			break;

		 case CASE_NEL:
			/* NEL */
			Index(screen, 1);
			CarriageReturn(screen);
			
			if (XtAppPending(app_con) ||
			    GetBytesAvailable (ConnectionNumber(screen->display)) > 0)
			  xevents();
			parsestate = groundtable;
			break;

		 case CASE_HTS:
			/* HTS */
			TabSet(term->tabs, screen->cur_col);
			parsestate = groundtable;
			break;

		 case CASE_RI:
			/* RI */
			RevIndex(screen, 1);
			parsestate = groundtable;
			break;

		 case CASE_SS2:
			/* SS2 */
			screen->curss = 2;
			parsestate = groundtable;
			break;

		 case CASE_SS3:
			/* SS3 */
			screen->curss = 3;
			parsestate = groundtable;
			break;

		 case CASE_CSI_STATE:
			/* enter csi state */
			nparam = 1;
			param[0] = DEFAULT;
			parsestate = csitable;
			break;

		 case CASE_OSC:
			/* Operating System Command: ESC ] */
			do_osc(finput);
			parsestate = groundtable;
			break;

		 case CASE_RIS:
			/* RIS */
			VTReset(TRUE);
			parsestate = groundtable;
			break;

		 case CASE_LS2:
			/* LS2 */
			screen->curgl = 2;
			parsestate = groundtable;
			break;

		 case CASE_LS3:
			/* LS3 */
			screen->curgl = 3;
			parsestate = groundtable;
			break;

		 case CASE_LS3R:
			/* LS3R */
			screen->curgr = 3;
			parsestate = groundtable;
			break;

		 case CASE_LS2R:
			/* LS2R */
			screen->curgr = 2;
			parsestate = groundtable;
			break;

		 case CASE_LS1R:
			/* LS1R */
			screen->curgr = 1;
			parsestate = groundtable;
			break;

		 case CASE_XGTERM_SAVE:
			savemodes(term);
			parsestate = groundtable;
			break;

		 case CASE_XGTERM_RESTORE:
			restoremodes(term);
			parsestate = groundtable;
			break;

		 default:
			printf ("VTParse: unknown state....\n");
		}
	}
}

static finput()
{
	return(doinput());
}


static char *v_buffer;			/* pointer to physical buffer */
static char *v_bufstr = NULL;		/* beginning of area to write */
static char *v_bufptr;			/* end of area to write */
static char *v_bufend;			/* end of physical buffer */

/**/
static XtIntervalId input_handler = (XtIntervalId) NULL;
static XtIntervalId output_handler = (XtIntervalId) NULL;
static int pty_read_bytes = 0;
#define	ptymask()	(v_bufptr > v_bufstr ? pty_mask : 0)

/* Write data to the pty as typed by the user, pasted with the mouse,
   or generated by us in response to a query ESC sequence. */

v_write(f, d, len)
    int f;
    char *d;
    int len;
{
	int riten;
	int c = len;

	if (v_bufstr == NULL  &&  len > 0) {
	        v_buffer = XtMalloc(len);
		v_bufstr = v_buffer;
		v_bufptr = v_buffer;
		v_bufend = v_buffer + len;
	}
#ifdef DEBUG
	if (debug) {
	    fprintf(stderr, "v_write called with %d bytes (%d left over)",
		    len, v_bufptr - v_bufstr);
	    if (len > 1  &&  len < 10) fprintf(stderr, " \"%.*s\"", len, d);
	    fprintf(stderr, "\n");
	}
#endif

	if ((1 << f) != pty_mask)
		return(write(f, d, len));

	/*
	 * Append to the block we already have.
	 * Always doing this simplifies the code, and
	 * isn't too bad, either.  If this is a short
	 * block, it isn't too expensive, and if this is
	 * a long block, we won't be able to write it all
	 * anyway.
	 */

	if (len > 0) {
	    if (v_bufend < v_bufptr + len) { /* we've run out of room */
		if (v_bufstr != v_buffer) {
		    /* there is unused space, move everything down */
		    /* possibly overlapping memmove here */
#ifdef DEBUG
		    if (debug)
			fprintf(stderr, "moving data down %d\n",
				v_bufstr - v_buffer);
#endif
		    memmove( v_buffer, v_bufstr, v_bufptr - v_bufstr);
		    v_bufptr -= v_bufstr - v_buffer;
		    v_bufstr = v_buffer;
		}
		if (v_bufend < v_bufptr + len) {
		    /* still won't fit: get more space */
		    /* Don't use XtRealloc because an error is not fatal. */
		    int size = v_bufptr - v_buffer; /* save across realloc */
		    v_buffer = realloc(v_buffer, size + len);
		    if (v_buffer) {
#ifdef DEBUG
			if (debug)
			    fprintf(stderr, "expanded buffer to %d\n",
				    size + len);
#endif
			v_bufstr = v_buffer;
			v_bufptr = v_buffer + size;
			v_bufend = v_bufptr + len;
		    } else {
			/* no memory: ignore entire write request */
			fprintf(stderr, "%s: cannot allocate buffer space\n",
				xgterm_name);
			v_buffer = v_bufstr; /* restore clobbered pointer */
			c = 0;
		    }
		}
	    }
	    if (v_bufend >= v_bufptr + len) {
		/* new stuff will fit */
		memmove( v_bufptr, d, len);
		v_bufptr += len;
	    }
	}

	/*
	 * Write out as much of the buffer as we can.
	 * Be careful not to overflow the pty's input silo.
	 * We are conservative here and only write
	 * a small amount at a time.
	 *
	 * If we can't push all the data into the pty yet, we expect write
	 * to return a non-negative number less than the length requested
	 * (if some data written) or -1 and set errno to EAGAIN,
	 * EWOULDBLOCK, or EINTR (if no data written).
	 *
	 * (Not all systems do this, sigh, so the code is actually
	 * a little more forgiving.)
	 */

#define MAX_PTY_WRITE 128	/* 1/2 POSIX minimum MAX_INPUT */

	if (v_bufptr > v_bufstr) {
	    riten = write(f, v_bufstr, v_bufptr - v_bufstr <= MAX_PTY_WRITE ?
			  	       v_bufptr - v_bufstr : MAX_PTY_WRITE);
	    if (riten < 0) {
#ifdef DEBUG
		if (debug) perror("write");
#endif
		riten = 0;
	    }
#ifdef DEBUG
	    if (debug)
		fprintf(stderr, "write called with %d, wrote %d\n",
			v_bufptr - v_bufstr <= MAX_PTY_WRITE ?
			v_bufptr - v_bufstr : MAX_PTY_WRITE,
			riten);
#endif
	    v_bufstr += riten;
	    if (v_bufstr >= v_bufptr) /* we wrote it all */
		v_bufstr = v_bufptr = v_buffer;
	}

	/*
	 * If we have lots of unused memory allocated, return it
	 */
	if (v_bufend - v_bufptr > 1024) { /* arbitrary hysteresis */
	    /* save pointers across realloc */
	    int start = v_bufstr - v_buffer;
	    int size = v_bufptr - v_buffer;
	    int allocsize = size ? size : 1;
	    
	    v_buffer = realloc(v_buffer, allocsize);
	    if (v_buffer) {
		v_bufstr = v_buffer + start;
		v_bufptr = v_buffer + size;
		v_bufend = v_buffer + allocsize;
#ifdef DEBUG
		if (debug)
		    fprintf(stderr, "shrunk buffer to %d\n", allocsize);
#endif
	    } else {
		/* should we print a warning if couldn't return memory? */
		v_buffer = v_bufstr - start; /* restore clobbered pointer */
	    }
	}

	/* If there is still data left to write post an event handler to
	 * write the rest of the buffer.  Otherwise remove any old handler.
	 */
	if (v_bufptr > v_bufstr) {
	    if (!output_handler)
		output_handler = XtAppAddInput (app_con, f,
		    (XtPointer)XtInputWriteMask, do_write, (XtPointer)NULL);
	} else if (output_handler) {
	    XtRemoveInput (output_handler);
	    output_handler = (XtIntervalId) NULL;
	}

	return(c);
}


/* in_put -- Process input from all sources (terminal pty i/o, X events, and
 * timers).  This is called after the input pty data buffer has been processed
 * and we are ready for more input, and it returns when new input data has
 * been received from the client.
 */
static int
in_put()
{
    register TScreen *screen = &term->screen;
    register XtInputMask mask;

    /* Enable pty input. */
    if (!input_handler)
        init_ttyio (screen->respond);

    /* Process events until we get some input data to return to our caller.
     */
    do {
        /* Pty input events are processed first - this is necessary for the
         * jump scroll feature to work properly.
         */
        if (bcnt <= 0 && pty_read_bytes < 4096) {
            mask = (XtIMAlternateInput | XtIMTimer);
            while (bcnt <= 0 && (XtAppPending(app_con) & mask))
                XtAppProcessEvent (app_con, mask);
            if (bcnt > 0)
                goto done;
        }

        /* Update the screen. */
        if (screen->scroll_amt)
            FlushScroll (screen);
        if (screen->cursor_set && (screen->cursor_col != screen->cur_col
                || screen->cursor_row != screen->cur_row)) {
            if (screen->cursor_state)
                HideCursor();
            ShowCursor();
        } else if (screen->cursor_set != screen->cursor_state) {
            if (screen->cursor_set)
                ShowCursor();
            else
                HideCursor();
        }
        while (!gt_flush())
            ;
        XFlush (XtDisplay(term));

        /* Process any queued up X events.  */
        while (XtAppPending(app_con) & (XtIMXEvent|XtIMTimer))
            XtAppProcessEvent (app_con, XtIMXEvent|XtIMTimer);

        /* Wait for and process the next input event. */
        XtAppProcessEvent (app_con, XtIMAll);
        pty_read_bytes = 0;

    } while (bcnt <= 0);

done:
    /* Disable pty input except when in this routine. */
    XtRemoveInput (input_handler);
    input_handler = (XtIntervalId) NULL;

    /* Return the next input char. */
    bcnt--;
    return (*bptr++);
}


/* do_read -- Called to read input data from the client pty.  We merely read
 * the data into the global input data buffer and return.  The data is
 * processed out of the buffer elsewhere.
 */
static void
do_read (w, fd, id)
    XtPointer w;
    int *fd;
    XtInputId *id;
{
    register TScreen *screen = &term->screen;

    /* Don't read any more data until the input buffer is empty. */
    if (bcnt > 0)
	return;

#ifdef ALLOWLOGGING
    if (screen->logging)
	FlushLog(screen);
#endif

    bcnt = read (*fd, (char *)(bptr = buffer), BUF_SIZE);
    if (bcnt > 0 && screen->logging)
	write (screen->logfd, buffer, bcnt);

    if (bcnt < 0) {
	if (errno == EIO)
	    Cleanup (0);
	else if (!E_TEST(errno))
	    Panic ("input: read returned unexpected error (%d)\n", errno);
    } else if (bcnt == 0) {
	Panic ("input: read returned zero\n", 0);

    } else {
	/* read from pty was successful */

	/* Let gtermio remove any graphics text. */
	bcnt = gt_input (bptr, bcnt);
	gt_flush();

	if (bcnt <= 0) {
	    bcnt = 0;
	    return;
	}

	if (!screen->output_eight_bits) {
	    register int bc = bcnt;
	    register Char *b = bptr;

	    for (; bc > 0; bc--, b++) {
		*b &= (Char) 0x7f;
	    }
	}

	if (screen->scrollWidget && screen->scrollttyoutput &&
		screen->topline < 0)
	    WindowScroll(screen, 0);  /* Scroll to bottom */

	pty_read_bytes += bcnt;
    }
}


/* do_write -- Called to write buffered client output when there is data
 * queued and the output file is ready for writing.
 */
static void
do_write (w, fd, id)
    XtPointer w;
    int *fd;
    XtInputId *id;
{
    v_write (*fd, 0, 0);
}

/* init_ttyio -- Initialize tty i/o.  Called by the main when the terminal
 * file descriptor has been obtained.
 */
init_ttyio (pty)
    int pty;
{
    if (pty < 0) {
        Panic ("init_ttyio: invalid pty=%d\n", pty);

    } else if (!input_handler) {
	input_handler = XtAppAddInput (app_con, pty,
	    (XtPointer)XtInputReadMask, do_read, (XtPointer)NULL);
    }
}


/*
 * process a string of characters according to the character set indicated
 * by charset.  worry about end of line conditions (wraparound if selected).
 */
static void
dotext(screen, flags, charset, buf, ptr, fg, bg)
    register TScreen	*screen;
    unsigned	flags, fg, bg;
    char	charset;
    char	*buf;		/* start of characters to process */
    char	*ptr;		/* end */
{
	register char	*s;
	register int	len;
	register int	n;
	register int	next_col;

	switch (charset) {
	case 'A':	/* United Kingdom set			*/
		for (s=buf; s<ptr; ++s)
			if (*s == '#')
				*s = '\036';	/* UK pound sign*/
		break;

	case 'B':	/* ASCII set				*/
		break;

	case '0':	/* special graphics (line drawing)	*/
		for (s=buf; s<ptr; ++s)
			if (*s>=0x5f && *s<=0x7e)
				*s = *s == 0x5f ? 0x7f : *s - 0x5f;
		break;

	default:	/* any character sets we don't recognize*/
		return;
	}

	len = ptr - buf; 
	ptr = buf;
	while (len > 0) {
		n = screen->max_col - screen->cur_col +1;
		if (n <= 1) {
			if (screen->do_wrap && (flags&WRAPAROUND)) {
			    /* mark that we had to wrap this line */
			    ScrnSetAttributes(screen, screen->cur_row, 0,
					      LINEWRAPPED, LINEWRAPPED, 1);
			    Index(screen, 1);
			    screen->cur_col = 0;
			    screen->do_wrap = 0;
			    n = screen->max_col+1;
			} else
			    n = 1;
		}
		if (len < n)
			n = len;
		next_col = screen->cur_col + n;
		WriteText(screen, ptr, n, flags, fg, bg);
		/*
		 * the call to WriteText updates screen->cur_col.
		 * If screen->cur_col != next_col, we must have
		 * hit the right margin, so set the do_wrap flag.
		 */
		screen->do_wrap = (screen->cur_col < next_col);
		len -= n;
		ptr += n;
	}
}
 
/*
 * write a string str of length len onto the screen at
 * the current cursor position.  update cursor position.
 */
static void
WriteText(screen, str, len, flags, fg, bg)
    register TScreen	*screen;
    register char	*str;
    register int	len;
    unsigned		flags, fg, bg;
{
	register int cx, cy;
	register unsigned fgs = flags;
        register Pixel fg_pix, bg_pix;
	GC	currentGC;

        fg_pix = (fgs & FG_COLOR) ? screen->colors[fg] : 
				    screen->foreground;
        bg_pix = (fgs & BG_COLOR) ? screen->colors[bg] : 
				    term->core.background_pixel;
 
   if(screen->cur_row - screen->topline <= screen->max_row) {
	/*
	if(screen->cur_row == screen->cursor_row && screen->cur_col <=
	 screen->cursor_col && screen->cursor_col <= screen->cur_col + len - 1)
		screen->cursor_state = OFF;
	 */
	if(screen->cursor_state)
		HideCursor();

	/*
	 *	make sure that the correct GC is current
	 */

	if (fgs & INVERSE) {
	    if (fgs & BOLD) 	currentGC = screen->reverseboldGC;
	    else		currentGC = screen->reverseGC;

	    if (term->misc.dynamicColors) {
                XSetForeground(screen->display, currentGC, bg_pix);
                XSetBackground(screen->display, currentGC, fg_pix);
	    }

	} else {   /* not bold */
	    if (fgs & BOLD) 	currentGC = screen->normalboldGC;
	    else		currentGC = screen->normalGC;

	    if (term->misc.dynamicColors) {
                XSetForeground(screen->display, currentGC, fg_pix);
                XSetBackground(screen->display, currentGC, bg_pix);
	    }
	}

	if (fgs & INSERT)
		InsertChar(screen, len);
        if (!(AddToRefresh(screen))) {
		if(screen->scroll_amt)
			FlushScroll(screen);
	cx = CursorX(screen, screen->cur_col);
	cy = CursorY(screen, screen->cur_row)+screen->fnt_norm->ascent;
 	XDrawImageString(screen->display, TextWindow(screen), currentGC,
			cx, cy, str, len);

	if((fgs & BOLD) && screen->enbolden) 
		if (currentGC == screen->normalGC || screen->reverseGC)
			XDrawString(screen->display, TextWindow(screen),
			      	currentGC,cx + 1, cy, str, len);

	if((fgs & UNDERLINE) && screen->underline)
		XDrawLine(screen->display, TextWindow(screen), currentGC,
			cx, cy+1,
			cx + len * FontWidth(screen), cy+1);
	/*
	 * the following statements compile data to compute the average 
	 * number of characters written on each call to XText.  The data
	 * may be examined via the use of a "hidden" escape sequence.
	 */
	ctotal += len;
	++ntotal;
      }
    }
	ScreenWrite(screen, str, flags, fg, bg, len);
	CursorForward(screen, len);
}
 
/*
 * process ANSI modes set, reset
 */
ansi_modes(termw, func)
    XgtermWidget	termw;
    int		(*func)();
{
	register int	i;

	for (i=0; i<nparam; ++i) {
		switch (param[i]) {
		case 4:			/* IRM				*/
			(*func)(&termw->flags, INSERT);
			break;

		case 20:		/* LNM				*/
			(*func)(&termw->flags, LINEFEED);
			update_autolinefeed();
			break;
		}
	}
}

/*
 * process DEC private modes set, reset
 */
dpmodes(termw, func)
    XgtermWidget	termw;
    void (*func)();
{
	register TScreen	*screen	= &termw->screen;
	register int	i, j;

	for (i=0; i<nparam; ++i) {
		switch (param[i]) {
		case 1:			/* DECCKM			*/
			(*func)(&termw->keyboard.flags, CURSOR_APL);
			update_appcursor();
			break;
		case 2:			/* ANSI/VT52 mode		*/
			if (func == bitset) {
				screen->gsets[0] =
					screen->gsets[1] =
					screen->gsets[2] =
					screen->gsets[3] = 'B';
				screen->curgl = 0;
				screen->curgr = 2;
			}
			break;
		case 3:			/* DECCOLM			*/
			if(screen->c132) {
				ClearScreen(screen);
				CursorSet(screen, 0, 0, termw->flags);
				if((j = func == bitset ? 132 : 80) !=
				 ((termw->flags & IN132COLUMNS) ? 132 : 80) ||
				 j != screen->max_col + 1) {
				        Dimension replyWidth, replyHeight;
					XtGeometryResult status;

					if (term->misc.sb_right) {
					    status = XtMakeResizeRequest (
					        (Widget) termw, 
					        (Dimension)FontWidth(screen) * j
					            + 2*screen->border,
					        (Dimension) FontHeight(screen)
						    * (screen->max_row + 1)
						    + 2 * screen->border,
					        &replyWidth, &replyHeight);
					} else {
                                            status = XtMakeResizeRequest (
                                                (Widget) termw,
                                                (Dimension)FontWidth(screen) * j
                                                    + 2*screen->border +
                                                    screen->scrollbar,
                                                (Dimension) FontHeight(screen)
                                                    * (screen->max_row + 1)
                                                    + 2 * screen->border,
                                                &replyWidth, &replyHeight);
					}

					if (status == XtGeometryYes ||
					    status == XtGeometryDone) {
					    ScreenResize (&termw->screen,
							  replyWidth,
							  replyHeight,
							  &termw->flags);
					}
				}
				(*func)(&termw->flags, IN132COLUMNS);
			}
			break;
		case 4:			/* DECSCLM (slow scroll)	*/
			if (func == bitset) {
				screen->jumpscroll = 0;
				if (screen->scroll_amt)
					FlushScroll(screen);
			} else
				screen->jumpscroll = 1;
			(*func)(&termw->flags, SMOOTHSCROLL);
			update_jumpscroll();
			break;
		case 5:			/* DECSCNM			*/
			j = termw->flags;
			(*func)(&termw->flags, REVERSE_VIDEO);
			if ((termw->flags ^ j) & REVERSE_VIDEO)
				ReverseVideo(termw);
			/* update_reversevideo done in RevVid */
			break;

		case 6:			/* DECOM			*/
			(*func)(&termw->flags, ORIGIN);
			CursorSet(screen, 0, 0, termw->flags);
			break;

		case 7:			/* DECAWM			*/
			(*func)(&termw->flags, WRAPAROUND);
			update_autowrap();
			break;
		case 8:			/* DECARM			*/
			/* ignore autorepeat */
			break;
		case 9:			/* MIT bogus sequence		*/
			if(func == bitset)
				screen->send_mouse_pos = 1;
			else
				screen->send_mouse_pos = 0;
			break;
		case 38:		/* DECTEK			*/
			if(func == bitset && !(screen->inhibit & I_TEK)) {
#ifdef ALLOWLOGGING
				if(screen->logging) {
					FlushLog(screen);
					screen->logstart = Tbuffer;
				}
#endif
				/* Enable gtermio as if a GS had been seen,
				 * but in xterm emulation mode (no trailers).
				 * Call gt_input to pass any buffered input
				 * following the DECTEK on to gtermio.
				 */
				switch_modes (0);
				gt_set_ginmode_trailers (NULL);
				while (!gt_flush())
				    ;
			}
			break;
		case 40:		/* 132 column mode		*/
			screen->c132 = (func == bitset);
			update_allow132();
			break;
		case 41:		/* curses hack			*/
			screen->curses = (func == bitset);
			update_cursesemul();
			break;
		case 44:		/* margin bell			*/
			screen->marginbell = (func == bitset);
			if(!screen->marginbell)
				screen->bellarmed = -1;
			update_marginbell();
			break;
		case 45:		/* reverse wraparound	*/
			(*func)(&termw->flags, REVERSEWRAP);
			update_reversewrap();
			break;
#ifdef ALLOWLOGGING
		case 46:		/* logging		*/
#ifdef ALLOWLOGFILEONOFF
			/*
			 * if this feature is enabled, logging may be 
			 * enabled and disabled via escape sequences.
			 */
			if(func == bitset)
				StartLog(screen);
			else
				CloseLog(screen);
#else
			Bell();
			Bell();
#endif /* ALLOWLOGFILEONOFF */
			break;
#endif
		case 47:		/* alternate buffer */
			if (!termw->misc.titeInhibit) {
			    if(func == bitset)
				ToAlternate(screen);
			    else
				FromAlternate(screen);
			}
			break;
		case 1000:		/* xgterm bogus sequence	*/
			if(func == bitset)
				screen->send_mouse_pos = 2;
			else
				screen->send_mouse_pos = 0;
			break;
		case 1001:		/* xgterm sequence w/hilite tracking */
			if(func == bitset)
				screen->send_mouse_pos = 3;
			else
				screen->send_mouse_pos = 0;
			break;
		}
	}
}

/*
 * process xgterm private modes save
 */
savemodes(termw)
    XgtermWidget termw;
{
	register TScreen	*screen	= &termw->screen;
	register int i;

	for (i = 0; i < nparam; i++) {
		switch (param[i]) {
		case 1:			/* DECCKM			*/
			screen->save_modes[0] = termw->keyboard.flags &
			 CURSOR_APL;
			break;
		case 3:			/* DECCOLM			*/
			if(screen->c132)
			    screen->save_modes[1] = termw->flags & IN132COLUMNS;
			break;
		case 4:			/* DECSCLM (slow scroll)	*/
			screen->save_modes[2] = termw->flags & SMOOTHSCROLL;
			break;
		case 5:			/* DECSCNM			*/
			screen->save_modes[3] = termw->flags & REVERSE_VIDEO;
			break;
		case 6:			/* DECOM			*/
			screen->save_modes[4] = termw->flags & ORIGIN;
			break;

		case 7:			/* DECAWM			*/
			screen->save_modes[5] = termw->flags & WRAPAROUND;
			break;
		case 8:			/* DECARM			*/
			/* ignore autorepeat */
			break;
		case 9:			/* mouse bogus sequence */
			screen->save_modes[7] = screen->send_mouse_pos;
			break;
		case 40:		/* 132 column mode		*/
			screen->save_modes[8] = screen->c132;
			break;
		case 41:		/* curses hack			*/
			screen->save_modes[9] = screen->curses;
			break;
		case 44:		/* margin bell			*/
			screen->save_modes[12] = screen->marginbell;
			break;
		case 45:		/* reverse wraparound	*/
			screen->save_modes[13] = termw->flags & REVERSEWRAP;
			break;
#ifdef ALLOWLOGGING
		case 46:		/* logging		*/
			screen->save_modes[14] = screen->logging;
			break;
#endif
		case 47:		/* alternate buffer		*/
			screen->save_modes[15] = screen->alternate;
			break;
		case 1000:		/* mouse bogus sequence		*/
		case 1001:
			screen->save_modes[7] = screen->send_mouse_pos;
			break;
		}
	}
}

/*
 * process xgterm private modes restore
 */
restoremodes(termw)
    XgtermWidget termw;
{
	register TScreen	*screen	= &termw->screen;
	register int i, j;

	for (i = 0; i < nparam; i++) {
		switch (param[i]) {
		case 1:			/* DECCKM			*/
			termw->keyboard.flags &= ~CURSOR_APL;
			termw->keyboard.flags |= screen->save_modes[0] &
			 CURSOR_APL;
			update_appcursor();
			break;
		case 3:			/* DECCOLM			*/
			if(screen->c132) {
				ClearScreen(screen);
				CursorSet(screen, 0, 0, termw->flags);
				if((j = (screen->save_modes[1] & IN132COLUMNS)
				 ? 132 : 80) != ((termw->flags & IN132COLUMNS)
				 ? 132 : 80) || j != screen->max_col + 1) {
				        Dimension replyWidth, replyHeight;
					XtGeometryResult status;
					status = XtMakeResizeRequest (
					    (Widget) termw,
					    (Dimension) FontWidth(screen) * j 
						+ 2*screen->border
						+ screen->scrollbar,
					    (Dimension) FontHeight(screen)
						* (screen->max_row + 1)
						+ 2*screen->border,
					    &replyWidth, &replyHeight);

					if (status == XtGeometryYes ||
					    status == XtGeometryDone) {
					    ScreenResize (&termw->screen,
							  replyWidth,
							  replyHeight,
							  &termw->flags);
					}
				}
				termw->flags &= ~IN132COLUMNS;
				termw->flags |= screen->save_modes[1] &
				 IN132COLUMNS;
			}
			break;
		case 4:			/* DECSCLM (slow scroll)	*/
			if (screen->save_modes[2] & SMOOTHSCROLL) {
				screen->jumpscroll = 0;
				if (screen->scroll_amt)
					FlushScroll(screen);
			} else
				screen->jumpscroll = 1;
			termw->flags &= ~SMOOTHSCROLL;
			termw->flags |= screen->save_modes[2] & SMOOTHSCROLL;
			update_jumpscroll();
			break;
		case 5:			/* DECSCNM			*/
			if((screen->save_modes[3] ^ termw->flags) & REVERSE_VIDEO) {
				termw->flags &= ~REVERSE_VIDEO;
				termw->flags |= screen->save_modes[3] & REVERSE_VIDEO;
				ReverseVideo(termw);
				/* update_reversevideo done in RevVid */
			}
			break;
		case 6:			/* DECOM			*/
			termw->flags &= ~ORIGIN;
			termw->flags |= screen->save_modes[4] & ORIGIN;
			CursorSet(screen, 0, 0, termw->flags);
			break;

		case 7:			/* DECAWM			*/
			termw->flags &= ~WRAPAROUND;
			termw->flags |= screen->save_modes[5] & WRAPAROUND;
			update_autowrap();
			break;
		case 8:			/* DECARM			*/
			/* ignore autorepeat */
			break;
		case 9:			/* MIT bogus sequence		*/
			screen->send_mouse_pos = screen->save_modes[7];
			break;
		case 40:		/* 132 column mode		*/
			screen->c132 = screen->save_modes[8];
			update_allow132();
			break;
		case 41:		/* curses hack			*/
			screen->curses = screen->save_modes[9];
			update_cursesemul();
			break;
		case 44:		/* margin bell			*/
			if(!(screen->marginbell = screen->save_modes[12]))
				screen->bellarmed = -1;
			update_marginbell();
			break;
		case 45:		/* reverse wraparound	*/
			termw->flags &= ~REVERSEWRAP;
			termw->flags |= screen->save_modes[13] & REVERSEWRAP;
			update_reversewrap();
			break;
#ifdef ALLOWLOGGING
		case 46:		/* logging		*/
#ifdef ALLOWLOGFILEONOFF
			if(screen->save_modes[14])
				StartLog(screen);
			else
				CloseLog(screen);
#endif /* ALLOWLOGFILEONOFF */
			/* update_logging done by StartLog and CloseLog */
			break;
#endif
		case 47:		/* alternate buffer */
			if (!termw->misc.titeInhibit) {
			    if(screen->save_modes[15])
				ToAlternate(screen);
			    else
				FromAlternate(screen);
			    /* update_altscreen done by ToAlt and FromAlt */
			}
			break;
		case 1000:		/* mouse bogus sequence		*/
		case 1001:
			screen->send_mouse_pos = screen->save_modes[7];
			break;
		}
	}
}

/*
 * set a bit in a word given a pointer to the word and a mask.
 */
static void bitset(p, mask)
    unsigned *p;
    int mask;
{
	*p |= mask;
}

/*
 * clear a bit in a word given a pointer to the word and a mask.
 */
static void bitclr(p, mask)
    unsigned *p;
    int mask;
{
	*p &= ~mask;
}

unparseseq(ap, fd)
    register ANSI *ap;
    int fd;
{
	register int	c;
	register int	i;
	register int	inters;

	c = ap->a_type;
	if (c>=0x80 && c<=0x9F) {
		unparseputc(ESC, fd);
		c -= 0x40;
	}
	unparseputc(c, fd);
	c = ap->a_type;
	if (c==ESC || c==DCS || c==CSI || c==OSC || c==PM || c==APC) {
		if (ap->a_pintro != 0)
			unparseputc((char) ap->a_pintro, fd);
		for (i=0; i<ap->a_nparam; ++i) {
			if (i != 0)
				unparseputc(';', fd);
			unparseputn((unsigned int) ap->a_param[i], fd);
		}
		inters = ap->a_inters;
		for (i=3; i>=0; --i) {
			c = (inters >> (8*i)) & 0xff;
			if (c != 0)
				unparseputc(c, fd);
		}
		unparseputc((char) ap->a_final, fd);
	}
}

unparseputn(n, fd)
unsigned int	n;
int fd;
{
	unsigned int	q;

	q = n/10;
	if (q != 0)
		unparseputn(q, fd);
	unparseputc((char) ('0' + (n%10)), fd);
}

unparseputc(c, fd)
char c;
int fd;
{
	char	buf[2];
	register i = 1;
	extern XgtermWidget term;

	if((buf[0] = c) == '\r' && (term->flags & LINEFEED)) {
		buf[1] = '\n';
		i++;
	}
	v_write(fd, buf, i);
}

unparsefputs (s, fd)
    register char *s;
    int fd;
{
    if (s) {
	while (*s) unparseputc (*s++, fd);
    }
}

static void SwitchBufs();

static void
ToAlternate(screen)
register TScreen *screen;
{
	extern ScrnBuf Allocate();

	if(screen->alternate)
		return;
	if(!screen->altbuf)
		screen->altbuf = Allocate(screen->max_row + 1, screen->max_col
		 + 1, &screen->abuf_address);
	SwitchBufs(screen);
	screen->alternate = TRUE;
	update_altscreen();
}

static void
FromAlternate(screen)
register TScreen *screen;
{
	if(!screen->alternate)
		return;
	screen->alternate = FALSE;
	SwitchBufs(screen);
	update_altscreen();
}

static void
SwitchBufs(screen)
    register TScreen *screen;
{
	register int rows, top;

	if(screen->cursor_state)
		HideCursor();
	rows = screen->max_row + 1;
	SwitchBufPtrs(screen);
	TrackText(0, 0, 0, 0);	/* remove any highlighting */
	if((top = -screen->topline) <= screen->max_row) {
		if(screen->scroll_amt)
			FlushScroll(screen);
		if(top == 0)
			XClearWindow(screen->display, TextWindow(screen));
		else
		    if (term->misc.sb_right) {
			XClearArea(
			    screen->display,
			    TextWindow(screen),
                            (int) screen->border,
			    (int) top * FontHeight(screen) + screen->border,
			    (unsigned) Width(screen),
			    (unsigned) (screen->max_row - top + 1)
				* FontHeight(screen),
			    FALSE);
		    } else {
                        XClearArea(
                            screen->display,
                            TextWindow(screen),
                            (int) screen->border + screen->scrollbar,
                            (int) top * FontHeight(screen) + screen->border,
                            (unsigned) Width(screen),
                            (unsigned) (screen->max_row - top + 1)
                                * FontHeight(screen),
                            FALSE);
		    }
	}
	ScrnRefresh(screen, 0, 0, rows, screen->max_col + 1, False);
}

/* swap buffer line pointers between alt and regular screens */

SwitchBufPtrs(screen)
    register TScreen *screen;
{
    register int rows = screen->max_row + 1;
    char *save [4 * MAX_ROWS];

    memmove( (char *)save, (char *)screen->buf, 4 * sizeof(char *) * rows);
    memmove( (char *)screen->buf, (char *)screen->altbuf, 
	  4 * sizeof(char *) * rows);
    memmove( (char *)screen->altbuf, (char *)save, 4 * sizeof(char *) * rows);
}

VTRun()
{
	register TScreen *screen = &term->screen;
	register int i;
	
	XtRealizeWidget (term->core.parent);
	if (!screen->TekEmu)
	    set_vt_visibility (TRUE);
/*
        if (!screen->Vshow)
            set_vt_visibility (TRUE);
*/

	update_vttekmode();
	update_vtshow();
	update_tekshow();
	set_vthide_sensitivity();
	
	if (screen->allbuf == NULL) VTallocbuf ();

	screen->cursor_state = OFF;
	screen->cursor_set = ON;

	bcnt = 0;
	bptr = buffer;
	while(Tpushb > Tpushback) {
		*bptr++ = *--Tpushb;
		bcnt++;
	}
	bcnt += (i = Tbcnt);
	for( ; i > 0 ; i--)
		*bptr++ = *Tbptr++;
	bptr = buffer;
	if(!setjmp(VTend))
		VTparse();
	HideCursor();
	screen->cursor_set = OFF;
}

/*ARGSUSED*/
static void VTExpose(w, event, region)
    Widget w;
    XEvent *event;
    Region region;
{
	register TScreen *screen = &term->screen;

#ifdef DEBUG
	if(debug)
		fputs("Expose\n", stderr);
#endif	/* DEBUG */
	if (event->type == Expose)
		HandleExposure (screen, event);
}

static void VTGraphicsOrNoExpose (event)
    XEvent *event;
{
	register TScreen *screen = &term->screen;
	if (screen->incopy <= 0) {
		screen->incopy = 1;
		if (screen->scrolls > 0)
			screen->scrolls--;
	}
	if (event->type == GraphicsExpose)
	  if (HandleExposure (screen, event))
		screen->cursor_state = OFF;
	if ((event->type == NoExpose) || ((XGraphicsExposeEvent *)event)->count == 0) {
		if (screen->incopy <= 0 && screen->scrolls > 0)
			screen->scrolls--;
		if (screen->scrolls)
			screen->incopy = -1;
		else
			screen->incopy = 0;
	}
}

/*ARGSUSED*/
static void VTNonMaskableEvent (w, closure, event, cont)
Widget w;			/* unused */
XtPointer closure;		/* unused */
XEvent *event;
Boolean *cont;			/* unused */
{
    switch (event->type) {
       case GraphicsExpose:
       case NoExpose:
	  VTGraphicsOrNoExpose (event);
	  break;
      }
}




static void VTResize(w)
    Widget w;
{
    if (XtIsRealized(w))
      ScreenResize (&term->screen, term->core.width, term->core.height,
		    &term->flags);
}

				
extern Atom wm_delete_window;	/* for ICCCM delete window */

static String xgterm_trans =
    "<ClientMessage>WM_PROTOCOLS: DeleteWindow()\n\
     <MappingNotify>: KeyboardMapping()\n";

int VTInit ()
{
    register TScreen *screen = &term->screen;
    Widget vtparent = term->core.parent;

    XtRealizeWidget (vtparent);
    XtOverrideTranslations(vtparent, XtParseTranslationTable(xgterm_trans));
    (void) XSetWMProtocols (XtDisplay(vtparent), XtWindow(vtparent),
			    &wm_delete_window, 1);

    if (screen->allbuf == NULL) VTallocbuf ();
    return (1);
}

static void VTallocbuf ()
{
    register TScreen *screen = &term->screen;
    int nrows = screen->max_row + 1;
    extern ScrnBuf Allocate();

    /* allocate screen buffer now, if necessary. */
    if (screen->scrollWidget)
      nrows += screen->savelines;
    screen->allbuf = Allocate (nrows, screen->max_col + 1,
     &screen->sbuf_address);
    if (screen->scrollWidget)
      screen->buf = &screen->allbuf[4 * screen->savelines];
    else
      screen->buf = screen->allbuf;
    return;
}

static void VTClassInit ()
{
    XtAddConverter(XtRString, XtRGravity, XmuCvtStringToGravity,
		   (XtConvertArgList) NULL, (Cardinal) 0);
}


/* ARGSUSED */
static void VTInitialize (wrequest, wnew, args, num_args)
   Widget wrequest, wnew;
   ArgList args;
   Cardinal *num_args;
{
   XgtermWidget request = (XgtermWidget) wrequest;
   XgtermWidget new     = (XgtermWidget) wnew;
   int i;

   /* Zero out the entire "screen" component of "new" widget,
      then do field-by-field assigment of "screen" fields
      that are named in the resource list. */

   memset ((char *) &new->screen, 0, sizeof(new->screen));
   new->screen.c132 = request->screen.c132;
   new->screen.curses = request->screen.curses;
   new->screen.hp_ll_bc = request->screen.hp_ll_bc;
   new->screen.foreground = request->screen.foreground;
   new->screen.cursorcolor = request->screen.cursorcolor;
   new->screen.border = request->screen.border;
   new->screen.jumpscroll = request->screen.jumpscroll;
#ifdef ALLOWLOGGING
   new->screen.logfile = request->screen.logfile;
#endif
   new->screen.marginbell = request->screen.marginbell;
   new->screen.mousecolor = request->screen.mousecolor;
   new->screen.mousecolorback = request->screen.mousecolorback;
   new->screen.multiscroll = request->screen.multiscroll;
   new->screen.nmarginbell = request->screen.nmarginbell;
   new->screen.savelines = request->screen.savelines;
   new->screen.scrolllines = request->screen.scrolllines;
   new->screen.scrollttyoutput = request->screen.scrollttyoutput;
   new->screen.scrollkey = request->screen.scrollkey;
   new->screen.underline = request->screen.underline;
   new->screen.visualbell = request->screen.visualbell;
   new->screen.TekEmu = request->screen.TekEmu;
   new->misc.re_verse = request->misc.re_verse;
   new->screen.multiClickTime = request->screen.multiClickTime;
   new->screen.bellSuppressTime = request->screen.bellSuppressTime;
   new->screen.charClass = request->screen.charClass;
   new->screen.cutNewline = request->screen.cutNewline;
   new->screen.cutToBeginningOfLine = request->screen.cutToBeginningOfLine;
   new->screen.always_highlight = request->screen.always_highlight;
   new->screen.pointer_cursor = request->screen.pointer_cursor;
   new->screen.input_eight_bits = request->screen.input_eight_bits;
   new->screen.output_eight_bits = request->screen.output_eight_bits;
   new->screen.allowSendEvents = request->screen.allowSendEvents;
   new->misc.titeInhibit = request->misc.titeInhibit;
   for (i = fontMenu_font1; i <= fontMenu_lastBuiltin; i++) {
       new->screen.menu_font_names[i] = request->screen.menu_font_names[i];
   }
   /* set default in realize proc */
   new->screen.menu_font_names[fontMenu_fontdefault] = NULL;
   new->screen.menu_font_names[fontMenu_fontescape] = NULL;
   new->screen.menu_font_names[fontMenu_fontsel] = NULL;
   new->screen.menu_font_number = fontMenu_fontdefault;

   for (i = 0; i < MAXCOLORS; i++) {
       new->screen.colors[i] = request->screen.colors[i];
   }

    /*
     * The definition of -rv now is that it changes the definition of 
     * XtDefaultForeground and XtDefaultBackground.  So, we no longer
     * need to do anything special.
     */
   new->keyboard.flags = 0;
   new->screen.display = new->core.screen->display;
   new->core.height = new->core.width = 1;
      /* dummy values so that we don't try to Realize the parent shell 
	 with height or width of 0, which is illegal in X.  The real
	 size is computed in the xgtermWidget's Realize proc,
	 but the shell's Realize proc is called first, and must see
	 a valid size. */

   /* look for focus related events on the shell, because we need
    * to care about the shell's border being part of our focus.
    */
   XtAddEventHandler(XtParent(new), FocusChangeMask, FALSE,
		HandleFocusChange, (Opaque)NULL);
   XtAddEventHandler((Widget)new, 0L, TRUE,
		VTNonMaskableEvent, (Opaque)NULL);
   XtAddEventHandler((Widget)new, PropertyChangeMask, FALSE,
		     HandleBellPropertyChange, (Opaque)NULL);

   /* These apply to vt100 window events. */
   XtAddEventHandler (wnew, EnterWindowMask, FALSE, HandleEnterWindow,
       (Opaque)NULL);
   XtAddEventHandler (wnew, LeaveWindowMask, FALSE, HandleLeaveWindow,
       (Opaque)NULL);

   new->screen.bellInProgress = FALSE;
   set_character_class (new->screen.charClass);

   /* create it, but don't realize it */
   ScrollBarOn (new, TRUE, FALSE);

   /* make sure that the resize gravity acceptable */
   if ( new->misc.resizeGravity != NorthWestGravity &&
        new->misc.resizeGravity != SouthWestGravity) {
       Cardinal nparams = 1;

       XtAppWarningMsg(app_con, "rangeError", "resizeGravity", "XGtermError",
		       "unsupported resizeGravity resource value (%d)",
		       (String *) &(new->misc.resizeGravity), &nparams);
       new->misc.resizeGravity = SouthWestGravity;
   }

   return;
}


static void VTDestroy (w)
Widget w;
{
    XtFree(((XgtermWidget)w)->screen.selection);
}

/*ARGSUSED*/
static void VTRealize (w, valuemask, values)
    Widget w;
    XtValueMask *valuemask;
    XSetWindowAttributes *values;
{
	unsigned int width, height;
	register TScreen *screen = &term->screen;
	int xpos, ypos, pr;
	XSizeHints		sizehints;
	int scrollbar_width;

	TabReset (term->tabs);

	screen->menu_font_names[fontMenu_fontdefault] = term->misc.f_n;
	screen->fnt_norm = screen->fnt_bold = NULL;
	if (!LoadNewFont(screen, term->misc.f_n, term->misc.f_b, False, 0)) {
	    if (XmuCompareISOLatin1(term->misc.f_n, "fixed") != 0) {
		fprintf (stderr, 
		     "%s:  unable to open font \"%s\", trying \"fixed\"....\n",
		     xgterm_name, term->misc.f_n);
		(void) LoadNewFont (screen, "fixed", NULL, False, 0);
		screen->menu_font_names[fontMenu_fontdefault] = "fixed";
	    }
	}

	/* really screwed if we couldn't open default font */
	if (!screen->fnt_norm) {
	    fprintf (stderr, "%s:  unable to locate a suitable font\n",
		     xgterm_name);
	    Exit (1);
	}

	/* making cursor */
	if (!screen->pointer_cursor) 
	  screen->pointer_cursor = make_colored_cursor(XC_xterm, 
						       screen->mousecolor,
						       screen->mousecolorback);
	else 
	  recolor_cursor (screen->pointer_cursor, 
			  screen->mousecolor, screen->mousecolorback);

	scrollbar_width = (term->misc.scrollbar || term->misc.sb_right ?
			   screen->scrollWidget->core.width /* +
			   screen->scrollWidget->core.border_width */ : 0);

	/* set defaults */
	xpos = 1; ypos = 1; width = 80; height = 24;
	pr = XParseGeometry (term->misc.geo_metry, &xpos, &ypos,
			     &width, &height);
	screen->max_col = (width - 1);	/* units in character cells */
	screen->max_row = (height - 1);	/* units in character cells */
	update_font_info (&term->screen, False);

	width = screen->fullVwin.fullwidth;
	height = screen->fullVwin.fullheight;

	if ((pr & XValue) && (XNegative&pr)) 
	  xpos += DisplayWidth(screen->display, DefaultScreen(screen->display))
			- width - (term->core.parent->core.border_width * 2);
	if ((pr & YValue) && (YNegative&pr))
	  ypos += DisplayHeight(screen->display,DefaultScreen(screen->display))
			- height - (term->core.parent->core.border_width * 2);

	/* set up size hints for window manager; min 1 char by 1 char */
	sizehints.base_width = 2 * screen->border + scrollbar_width;
	sizehints.base_height = 2 * screen->border;
	sizehints.width_inc = FontWidth(screen);
	sizehints.height_inc = FontHeight(screen);
	sizehints.min_width = sizehints.base_width + sizehints.width_inc;
	sizehints.min_height = sizehints.base_height + sizehints.height_inc;
	sizehints.flags = (PBaseSize|PMinSize|PResizeInc);
	sizehints.x = xpos;
	sizehints.y = ypos;
	if ((XValue&pr) || (YValue&pr)) {
	    sizehints.flags |= USSize|USPosition;
	    sizehints.flags |= PWinGravity;
	    switch (pr & (XNegative | YNegative)) {
	      case 0:
		sizehints.win_gravity = NorthWestGravity;
		break;
	      case XNegative:
		sizehints.win_gravity = NorthEastGravity;
		break;
	      case YNegative:
		sizehints.win_gravity = SouthWestGravity;
		break;
	      default:
		sizehints.win_gravity = SouthEastGravity;
		break;
	    }
	} else {
	    /* set a default size, but do *not* set position */
	    sizehints.flags |= PSize;
	}
	sizehints.width = width;
	sizehints.height = height;
	if ((WidthValue&pr) || (HeightValue&pr)) 
	  sizehints.flags |= USSize;
	else sizehints.flags |= PSize;

	(void) XtMakeResizeRequest((Widget) term,
				   (Dimension)width, (Dimension)height,
				   &term->core.width, &term->core.height);

	/* XXX This is bogus.  We are parsing geometries too late.  This
	 * is information that the shell widget ought to have before we get
	 * realized, so that it can do the right thing.
	 */
        if (sizehints.flags & USPosition)
	    XMoveWindow (XtDisplay(term), term->core.parent->core.window,
			 sizehints.x, sizehints.y);

	XSetWMNormalHints (XtDisplay(term), term->core.parent->core.window,
			   &sizehints);
	XFlush (XtDisplay(term));	/* get it out to window manager */

	/* use ForgetGravity instead of SouthWestGravity because translating
	   the Expose events for ConfigureNotifys is too hard */
	values->bit_gravity = term->misc.resizeGravity == NorthWestGravity ?
	    NorthWestGravity : ForgetGravity;
	term->screen.fullVwin.window = term->core.window =
	  XCreateWindow(XtDisplay(term), XtWindow(term->core.parent),
		term->core.x, term->core.y,
		term->core.width, term->core.height, term->core.border_width,
		(int) term->core.depth,
		InputOutput, CopyFromParent,	
		*valuemask|CWBitGravity, values);

/*
#ifdef I18N
        VTInitI18N();
#endif
*/

	set_cursor_gcs (screen);

	/* Reset variables used by ANSI emulation. */

	screen->gsets[0] = 'B';			/* ASCII_G		*/
	screen->gsets[1] = 'B';
	screen->gsets[2] = 'B';			/* DEC supplemental.	*/
	screen->gsets[3] = 'B';
	screen->curgl = 0;			/* G0 => GL.		*/
	screen->curgr = 2;			/* G2 => GR.		*/
	screen->curss = 0;			/* No single shift.	*/

	XDefineCursor(screen->display, VShellWindow, screen->pointer_cursor);

        screen->cur_col = screen->cur_row = 0;
	screen->max_col = Width(screen)/screen->fullVwin.f_width - 1;
	screen->top_marg = 0;
	screen->bot_marg = screen->max_row = Height(screen) /
				screen->fullVwin.f_height - 1;

	screen->sc.row = screen->sc.col = screen->sc.flags = 0;

	/* Mark screen buffer as unallocated.  We wait until the run loop so
	   that the child process does not fork and exec with all the dynamic
	   memory it will never use.  If we were to do it here, the
	   swap space for new process would be huge for huge savelines. */
        screen->buf = screen->allbuf = NULL;

	screen->do_wrap = 0;
	screen->scrolls = screen->incopy = 0;
	set_vt_box (screen);

	screen->savedlines = 0;

	if (term->misc.scrollbar || term->misc.sb_right ) {
		screen->scrollbar = 0;
		ScrollBarOn (term, FALSE, TRUE);
	}
	CursorSave (term, &screen->sc);
	return;
}

#ifdef I18N

static void VTInitI18N()
{
    int         i,
                ic_cnt = 0;
    char       *p,
               *s,
               *ns,
               *end,
                tmp[1024],
                buf[32];
    XIM         xim;
    XIMStyles  *xim_styles;
    XIMStyle    input_style;
    Boolean     found;

    term->screen.xic = NULL;

    if (!term->misc.open_im) return;

    if (term->misc.input_method) {
        strcpy(tmp, term->misc.input_method);
        for(s=tmp; *s;) {
            while (*s && isspace(*s)) s++;
            if (!*s) break;
            if (!(ns = end = index(s, ',')))
                end = s + strlen(s);
            while (isspace(*end)) end--;
            *end = '\0';

            strcpy(buf, "@im=");
            strcat(buf, s);
            if ((p = XSetLocaleModifiers(buf)) != NULL && *p
                && (xim = XOpenIM(XtDisplay(term), NULL, NULL, NULL)) != NULL)
                break;

            s = ns + 1;
        }
    } else {
        if ((p = XSetLocaleModifiers("@im=none")) != NULL && *p)
            xim = XOpenIM(XtDisplay(term), NULL, NULL, NULL);
    }

    if (xim == NULL && (p = XSetLocaleModifiers("")) != NULL && *p)
        xim = XOpenIM(XtDisplay(term), NULL, NULL, NULL);

    if (!xim) {
        fprintf(stderr, "Failed to open input method");
        return;
    }

    if (XGetIMValues(xim, XNQueryInputStyle, &xim_styles, NULL)
        || !xim_styles) {
        fprintf(stderr, "input method doesn't support any style\n");
        XCloseIM(xim);
        return;
    }

    found = False;
    strcpy(tmp, term->misc.preedit_type);
    for(s = tmp; s && !found;) {
        while (*s && isspace(*s)) s++;
        if (!*s) break;
        if (ns = end = index(s, ','))
            ns++;
        else
            end = s + strlen(s);
        while (isspace(*end)) end--;
        *end = '\0';

        if (!strcmp(s, "OverTheSpot")) {
            input_style = (XIMPreeditPosition | XIMStatusArea);
        } else if (!strcmp(s, "OffTheSpot")) {
            input_style = (XIMPreeditArea | XIMStatusArea);
        } else if (!strcmp(s, "Root")) {
            input_style = (XIMPreeditNothing | XIMStatusNothing);
        }
        for (i = 0; (unsigned short)i < xim_styles->count_styles; i++)
            if (input_style == xim_styles->supported_styles[i]) {
                found = True;
                break;
            }

        s = ns;
    }
    XFree(xim_styles);

    if (!found) {
        fprintf(stderr, "input method doesn't support my preedit type\n");
        XCloseIM(xim);
        return;
    }

    /*
     * This program only understands the Root preedit_style yet
     * Then misc.preedit_type should default to:
     *          "OverTheSpot,OffTheSpot,Root"
     *
     *  /MaF
     */
    if (input_style != (XIMPreeditNothing | XIMStatusNothing)) {
        fprintf(stderr,"This program only supports the 'Root' preedit type\n");
        XCloseIM(xim);
        return;
    }

    term->screen.xic = XCreateIC(xim, XNInputStyle, input_style,
                                      XNClientWindow, term->core.window,
                                      XNFocusWindow, term->core.window,
                                      NULL);

    if (!term->screen.xic) {
        fprintf(stderr,"Failed to create input context\n");
        XCloseIM(xim);
    }

    return;
}

#endif


static Boolean VTSetValues (cur, request, new, args, num_args)
    Widget cur, request, new;
    ArgList args;
    Cardinal *num_args;
{
    XgtermWidget curvt = (XgtermWidget) cur;
    XgtermWidget newvt = (XgtermWidget) new; 
    Boolean refresh_needed = FALSE;
    Boolean fonts_redone = FALSE;

    if(curvt->core.background_pixel != newvt->core.background_pixel
       || curvt->screen.foreground != newvt->screen.foreground
       || curvt->screen.menu_font_names[curvt->screen.menu_font_number]
          != newvt->screen.menu_font_names[newvt->screen.menu_font_number]
       || curvt->misc.f_n != newvt->misc.f_n) {
	if(curvt->misc.f_n != newvt->misc.f_n)
	    newvt->screen.menu_font_names[fontMenu_fontdefault] = newvt->misc.f_n;
	if (LoadNewFont(&newvt->screen,
			newvt->screen.menu_font_names[curvt->screen.menu_font_number],
			newvt->screen.menu_font_names[curvt->screen.menu_font_number],
			TRUE, newvt->screen.menu_font_number)) {
	    /* resizing does the redisplay, so don't ask for it here */
	    refresh_needed = TRUE;
	    fonts_redone = TRUE;
	} else
	    if(curvt->misc.f_n != newvt->misc.f_n)
		newvt->screen.menu_font_names[fontMenu_fontdefault] = curvt->misc.f_n;
    }
    if(!fonts_redone
       && curvt->screen.cursorcolor != newvt->screen.cursorcolor) {
	set_cursor_gcs(&newvt->screen);
	refresh_needed = TRUE;
    }
    if(curvt->misc.re_verse != newvt->misc.re_verse) {
	newvt->flags ^= REVERSE_VIDEO;
	ReverseVideo(newvt);
	newvt->misc.re_verse = !newvt->misc.re_verse; /* ReverseVideo toggles */
	refresh_needed = TRUE;
    }
    if(curvt->screen.mousecolor != newvt->screen.mousecolor
       || curvt->screen.mousecolorback != newvt->screen.mousecolorback) {
	recolor_cursor (newvt->screen.pointer_cursor, 
			newvt->screen.mousecolor,
			newvt->screen.mousecolorback);
	refresh_needed = TRUE;
    }
    if ((curvt->misc.scrollbar != newvt->misc.scrollbar) &&
        (curvt->misc.sb_right != newvt->misc.sb_right)) {
	    if (newvt->misc.scrollbar || newvt->misc.sb_right) {
	        ScrollBarOn (newvt, FALSE, FALSE);
	    } else {
	        ScrollBarOff (&newvt->screen);
	    }
	    update_scrollbar();
    }

    return refresh_needed;
}

/*
 * Shows cursor at new cursor position in screen.
 */
void
ShowCursor()
{
	register TScreen *screen = &term->screen;
	register int x, y, flags;
	Char c;
	GC	currentGC;
	Boolean	in_selection;

	if (eventMode != NORMAL) return;

	if (screen->cur_row - screen->topline > screen->max_row)
		return;
	c = screen->buf[y = 4 * (screen->cursor_row = screen->cur_row)]
	 [x = screen->cursor_col = screen->cur_col];
	flags = screen->buf[y + 1][x];
	if (c == 0)
		c = ' ';

	if (screen->cur_row > screen->endHRow ||
	    (screen->cur_row == screen->endHRow &&
	     screen->cur_col >= screen->endHCol) ||
	    screen->cur_row < screen->startHRow ||
	    (screen->cur_row == screen->startHRow &&
	     screen->cur_col < screen->startHCol))
	    in_selection = False;
	else
	    in_selection = True;

	if(screen->select || screen->always_highlight) {
		if (( (flags & INVERSE) && !in_selection) ||
		    (!(flags & INVERSE) &&  in_selection)){
		    /* text is reverse video */
		    if (screen->cursorGC) {
			currentGC = screen->cursorGC;
		    } else {
			if (flags & BOLD) {
				currentGC = screen->normalboldGC;
			} else {
				currentGC = screen->normalGC;
			}
		    }
		} else { /* normal video */
		    if (screen->reversecursorGC) {
			currentGC = screen->reversecursorGC;
		    } else {
			if (flags & BOLD) {
				currentGC = screen->reverseboldGC;
			} else {
				currentGC = screen->reverseGC;
			}
		    }
		}
#if 0
 /*RFB*/
 if ( flags & BG_COLOR )
        XSetForeground( screen->display, currentGC,
                screen->colors[ term->cur_background ]);
 if ( flags & FG_COLOR )
        XSetBackground( screen->display, currentGC,
                screen->colors[ term->cur_foreground ]);
 /**********************************************************/
 /*                                                        */
 /*  we test "flags and background" before calling         */
 /*  XSetForeground;                                       */
 /*                                                        */
 /*  it looks funny, but we're in reverse video and the    */
 /*  color we're setting it to is the current background   */
 /*  color!                                                */
 /*                                                        */
 /**********************************************************/
 /*RFB*/
#endif
	} else { /* not selected */
		if (( (flags & INVERSE) && !in_selection) ||
		    (!(flags & INVERSE) &&  in_selection)) {
		    /* text is reverse video */
			currentGC = screen->reverseGC;
		} else { /* normal video */
			currentGC = screen->normalGC;
		}
#if 0
 /*RFB*/
 if ( flags & FG_COLOR )
        XSetForeground( screen->display, currentGC,
                screen->colors[ term->cur_foreground ]);
 if ( flags & BG_COLOR )
        XSetBackground( screen->display, currentGC,
                screen->colors[ term->cur_background ]);
 /*RFB*/
#endif
	}

	x = CursorX (screen, screen->cur_col);
	y = CursorY(screen, screen->cur_row) + 
	  screen->fnt_norm->ascent;
	XDrawImageString(screen->display, TextWindow(screen), currentGC,
		x, y, (char *) &c, 1);

	if((flags & BOLD) && screen->enbolden) /* no bold font */
		XDrawString(screen->display, TextWindow(screen), currentGC,
			x + 1, y, (char *) &c, 1);
	if((flags & UNDERLINE) && screen->underline)
		XDrawLine(screen->display, TextWindow(screen), currentGC,
			x, y+1, x + FontWidth(screen), y+1);
	if (!screen->select && !screen->always_highlight) {
		screen->box->x = x;
		screen->box->y = y - screen->fnt_norm->ascent;
		XDrawLines (screen->display, TextWindow(screen), 
			    screen->cursoroutlineGC ? screen->cursoroutlineGC 
			    			    : currentGC,
			    screen->box, NBOX, CoordModePrevious);
	}
	screen->cursor_state = ON;
}

/*
 * hide cursor at previous cursor position in screen.
 */
void
HideCursor()
{
	register TScreen *screen = &term->screen;
	GC	currentGC;
	register int x, y, flags, fg, bg;
	register Pixel fg_pix, bg_pix;
	char c;
	Boolean	in_selection;

	if(screen->cursor_row - screen->topline > screen->max_row)
		return;
	c = screen->buf[y = 4 * screen->cursor_row][x = screen->cursor_col];
	flags = screen->buf[y + 1][x];
        fg = screen->buf[y + 2][x];
        bg = screen->buf[y + 3][x];

        fg_pix = (flags&FG_COLOR) ? screen->colors[fg] : 
				    screen->foreground;
        bg_pix = (flags&BG_COLOR) ? screen->colors[bg] : 
				    term->core.background_pixel;

	if (screen->cursor_row > screen->endHRow ||
	    (screen->cursor_row == screen->endHRow &&
	    screen->cursor_col >= screen->endHCol) ||
	    screen->cursor_row < screen->startHRow ||
	    (screen->cursor_row == screen->startHRow &&
	    screen->cursor_col < screen->startHCol))
	        in_selection = False;
	else
	    in_selection = True;

	if (( (flags & INVERSE) && !in_selection) ||
	    (!(flags & INVERSE) &&  in_selection)) {
		if(flags & BOLD)
		    currentGC = screen->reverseboldGC;
		else
		    currentGC = screen->reverseGC;
		if (term->misc.dynamicColors) {
                    XSetForeground(screen->display, currentGC, bg_pix);
                    XSetBackground(screen->display, currentGC, fg_pix);
		}
	} else {
		if(flags & BOLD)
		    currentGC = screen->normalboldGC;
		else
		    currentGC = screen->normalGC;
		if (term->misc.dynamicColors) {
                    XSetForeground(screen->display, currentGC, fg_pix);
                    XSetBackground(screen->display, currentGC, bg_pix);
		}
	}

	if (c == 0)
		c = ' ';
	x = CursorX (screen, screen->cursor_col);
	y = (((screen->cursor_row - screen->topline) * FontHeight(screen))) +
	 screen->border;
	y = y+screen->fnt_norm->ascent;
	XDrawImageString(screen->display, TextWindow(screen), currentGC,
		x, y, &c, 1);
	if((flags & BOLD) && screen->enbolden)
		XDrawString(screen->display, TextWindow(screen), currentGC,
			x + 1, y, &c, 1);
	if((flags & UNDERLINE) && screen->underline)
		XDrawLine(screen->display, TextWindow(screen), currentGC,
			x, y+1, x + FontWidth(screen), y+1);
	screen->cursor_state = OFF;
}

VTReset(full)
    Boolean full;
{
	register TScreen *screen = &term->screen;

	/* reset scrolling region */
	screen->top_marg = 0;
	screen->bot_marg = screen->max_row;
	term->flags &= ~ORIGIN;
	if(full) {
		TabReset (term->tabs);
		term->keyboard.flags = 0;
		update_appcursor();
		update_appkeypad();
		screen->gsets[0] = 'B';
		screen->gsets[1] = 'B';
		screen->gsets[2] = 'B';
		screen->gsets[3] = 'B';
		screen->curgl = 0;
		screen->curgr = 2;
		screen->curss = 0;
		FromAlternate(screen);
		ClearScreen(screen);
		screen->cursor_state = OFF;
		if (term->flags & REVERSE_VIDEO)
			ReverseVideo(term);

		term->flags = term->initflags;
		update_reversevideo();
		update_autowrap();
		update_reversewrap();
		update_autolinefeed();
		screen->jumpscroll = !(term->flags & SMOOTHSCROLL);
		update_jumpscroll();
		if(screen->c132 && (term->flags & IN132COLUMNS)) {
		    Dimension junk;

		    if (term->misc.sb_right) {
			XtMakeResizeRequest(
			    (Widget) term,
			    (Dimension) 80*FontWidth(screen)
                                + 2 * screen->border,
			    (Dimension) FontHeight(screen)
			        * (screen->max_row + 1) + 2 * screen->border,
			    &junk, &junk);
		    } else {
                        XtMakeResizeRequest(
                            (Widget) term,
                            (Dimension) 80*FontWidth(screen)
                                + 2 * screen->border + screen->scrollbar,
                            (Dimension) FontHeight(screen)
                                * (screen->max_row + 1) + 2 * screen->border,
                            &junk, &junk);
		    }
		    XSync(screen->display, FALSE);	/* synchronize */
		    if(XtAppPending(app_con))
		    	xevents();
		}
		CursorSet(screen, 0, 0, term->flags);
	}
	longjmp(vtjmpbuf, 1);	/* force ground state in parser */
}



/*
 * set_character_class - takes a string of the form
 * 
 *                 low[-high]:val[,low[-high]:val[...]]
 * 
 * and sets the indicated ranges to the indicated values.
 */

int set_character_class (s)
    register char *s;
{
    register int i;			/* iterator, index into s */
    int len;				/* length of s */
    int acc;				/* accumulator */
    int low, high;			/* bounds of range [0..127] */
    int base;				/* 8, 10, 16 (octal, decimal, hex) */
    int numbers;			/* count of numbers per range */
    int digits;				/* count of digits in a number */
    static char *errfmt = "%s:  %s in range string \"%s\" (position %d)\n";
    extern char *ProgramName;

    if (!s || !s[0]) return -1;

    base = 10;				/* in case we ever add octal, hex */
    low = high = -1;			/* out of range */

    for (i = 0, len = strlen (s), acc = 0, numbers = digits = 0;
	 i < len; i++) {
	char c = s[i];

	if (isspace(c)) {
	    continue;
	} else if (isdigit(c)) {
	    acc = acc * base + (c - '0');
	    digits++;
	    continue;
	} else if (c == '-') {
	    low = acc;
	    acc = 0;
	    if (digits == 0) {
		fprintf (stderr, errfmt, ProgramName, "missing number", s, i);
		return (-1);
	    }
	    digits = 0;
	    numbers++;
	    continue;
	} else if (c == ':') {
	    if (numbers == 0)
	      low = acc;
	    else if (numbers == 1)
	      high = acc;
	    else {
		fprintf (stderr, errfmt, ProgramName, "too many numbers",
			 s, i);
		return (-1);
	    }
	    digits = 0;
	    numbers++;
	    acc = 0;
	    continue;
	} else if (c == ',') {
	    /*
	     * now, process it
	     */

	    if (high < 0) {
		high = low;
		numbers++;
	    }
	    if (numbers != 2) {
		fprintf (stderr, errfmt, ProgramName, "bad value number", 
			 s, i);
	    } else if (SetCharacterClassRange (low, high, acc) != 0) {
		fprintf (stderr, errfmt, ProgramName, "bad range", s, i);
	    }

	    low = high = -1;
	    acc = 0;
	    digits = 0;
	    numbers = 0;
	    continue;
	} else {
	    fprintf (stderr, errfmt, ProgramName, "bad character", s, i);
	    return (-1);
	}				/* end if else if ... else */

    }

    if (low < 0 && high < 0) return (0);

    /*
     * now, process it
     */

    if (high < 0) high = low;
    if (numbers < 1 || numbers > 2) {
	fprintf (stderr, errfmt, ProgramName, "bad value number", s, i);
    } else if (SetCharacterClassRange (low, high, acc) != 0) {
	fprintf (stderr, errfmt, ProgramName, "bad range", s, i);
    }

    return (0);
}

/* ARGSUSED */
static void HandleKeymapChange(w, event, params, param_count)
    Widget w;
    XEvent *event;
    String *params;
    Cardinal *param_count;
{
    static XtTranslations keymap, original;
    static XtResource key_resources[] = {
	{ XtNtranslations, XtCTranslations, XtRTranslationTable,
	      sizeof(XtTranslations), 0, XtRTranslationTable, (XtPointer)NULL}
    };
    char mapName[1000];
    char mapClass[1000];

    if (*param_count != 1) return;

    if (original == NULL) original = w->core.tm.translations;

    if (strcmp(params[0], "None") == 0) {
	XtOverrideTranslations(w, original);
	return;
    }
    (void) sprintf( mapName, "%sKeymap", params[0] );
    (void) strcpy( mapClass, mapName );
    if (islower(mapClass[0])) mapClass[0] = toupper(mapClass[0]);
    XtGetSubresources( w, (XtPointer)&keymap, mapName, mapClass,
		       key_resources, (Cardinal)1, NULL, (Cardinal)0 );
    if (keymap != NULL)
	XtOverrideTranslations(w, keymap);
}


/* ARGSUSED */
static void HandleBell(w, event, params, param_count)
    Widget w;
    XEvent *event;		/* unused */
    String *params;		/* [0] = volume */
    Cardinal *param_count;	/* 0 or 1 */
{
    int percent = (*param_count) ? atoi(params[0]) : 0;

    XBell( XtDisplay(w), percent );
}


/* ARGSUSED */
static void HandleVisualBell(w, event, params, param_count)
    Widget w;
    XEvent *event;		/* unused */
    String *params;		/* unused */
    Cardinal *param_count;	/* unused */
{
    VisualBell();
}


/* ARGSUSED */
static void HandleIgnore(w, event, params, param_count)
    Widget w;
    XEvent *event;		/* unused */
    String *params;		/* unused */
    Cardinal *param_count;	/* unused */
{
    /* do nothing, but check for funny escape sequences */
    (void) SendMousePosition(w, event);
}


/* ARGSUSED */
static void
DoSetSelectedFont(w, client_data, selection, type, value, length, format)
    Widget w;
    XtPointer client_data;
    Atom *selection, *type;
    XtPointer value;
    unsigned long *length;
    int *format;
{
    char *val = (char *)value;
    int len;
    if (*type != XA_STRING  ||  *format != 8) {
	Bell();
	return;
    }
    len = strlen(val);
    if (len > 0) {
	if (val[len-1] == '\n') val[len-1] = '\0';
	/* Do some sanity checking to avoid sending a long selection
	   back to the server in an OpenFont that is unlikely to succeed.
	   XLFD allows up to 255 characters and no control characters;
	   we are a little more liberal here. */
	if (len > 1000  ||  strchr(val, '\n'))
	    return;
	if (!LoadNewFont (&term->screen, val, NULL, True, fontMenu_fontsel))
	    Bell();
    }
}

void FindFontSelection (atom_name, justprobe)
    char *atom_name;
    Bool justprobe;
{
    static AtomPtr *atoms;
    static int atomCount = 0;
    AtomPtr *pAtom;
    int a;
    Atom target;

    if (!atom_name) atom_name = "PRIMARY";

    for (pAtom = atoms, a = atomCount; a; a--, pAtom++) {
	if (strcmp(atom_name, XmuNameOfAtom(*pAtom)) == 0) break;
    }
    if (!a) {
	atoms = (AtomPtr*) XtRealloc ((char *)atoms,
				      sizeof(AtomPtr)*(atomCount+1));
	*(pAtom = &atoms[atomCount++]) = XmuMakeAtom(atom_name);
    }

    target = XmuInternAtom(XtDisplay(term), *pAtom);
    if (justprobe) {
	term->screen.menu_font_names[fontMenu_fontsel] = 
	  XGetSelectionOwner(XtDisplay(term), target) ? _Font_Selected_ : NULL;
    } else {
	XtGetSelectionValue((Widget)term, target, XA_STRING,
			    DoSetSelectedFont, NULL,
			    XtLastTimestampProcessed(XtDisplay(term)));
    }
    return;
}


/* ARGSUSED */
void HandleSetFont(w, event, params, param_count)
    Widget w;
    XEvent *event;		/* unused */
    String *params;		/* unused */
    Cardinal *param_count;	/* unused */
{
    int fontnum;
    char *name1 = NULL, *name2 = NULL;

    if (*param_count == 0) {
	fontnum = fontMenu_fontdefault;
    } else {
	int maxparams = 1;		/* total number of params allowed */

	switch (params[0][0]) {
	  case 'd': case 'D': case '0':
	    fontnum = fontMenu_fontdefault; break;
	  case '1':
	    fontnum = fontMenu_font1; break;
	  case '2':
	    fontnum = fontMenu_font2; break;
	  case '3':
	    fontnum = fontMenu_font3; break;
	  case '4':
	    fontnum = fontMenu_font4; break;
	  case '5':
	    fontnum = fontMenu_font5; break;
	  case '6':
	    fontnum = fontMenu_font6; break;
	  case 'e': case 'E':
	    fontnum = fontMenu_fontescape; maxparams = 3; break;
	  case 's': case 'S':
	    fontnum = fontMenu_fontsel; maxparams = 2; break;
	  default:
	    Bell();
	    return;
	}
	if (*param_count > maxparams) {	 /* see if extra args given */
	    Bell();
	    return;
	}
	switch (*param_count) {		/* assign 'em */
	  case 3:
	    name2 = params[2];
	    /* fall through */
	  case 2:
	    name1 = params[1];
	    break;
	}
    }

    SetVTFont (fontnum, True, name1, name2);
}


void SetVTFont (i, doresize, name1, name2)
    int i;
    Bool doresize;
    char *name1, *name2;
{
    TScreen *screen = &term->screen;

    if (i < 0 || i >= NMENUFONTS) {
	Bell();
	return;
    }
    if (i == fontMenu_fontsel) {	/* go get the selection */
	FindFontSelection (name1, False);  /* name1 = atom, name2 is ignored */
	return;
    }
    if (!name1) name1 = screen->menu_font_names[i];
    if (!LoadNewFont(screen, name1, name2, doresize, i)) {
	Bell();
    }
    return;
}


int LoadNewFont (screen, nfontname, bfontname, doresize, fontnum)
    TScreen *screen;
    char *nfontname, *bfontname;
    Bool doresize;
    int fontnum;
{
    XFontStruct *nfs = NULL, *bfs = NULL;
    XGCValues xgcv;
    unsigned long mask;
    GC new_normalGC = NULL, new_normalboldGC = NULL;
    GC new_reverseGC = NULL, new_reverseboldGC = NULL;
    char *tmpname = NULL;

    if (!nfontname) return 0;

    if (fontnum == fontMenu_fontescape &&
	nfontname != screen->menu_font_names[fontnum]) {
	tmpname = (char *) malloc (strlen(nfontname) + 1);
	if (!tmpname) return 0;
	strcpy (tmpname, nfontname);
    }

    if (!(nfs = XLoadQueryFont (screen->display, nfontname))) goto bad;
    if (nfs->ascent + nfs->descent == 0  ||  nfs->max_bounds.width == 0)
        goto bad;               /* can't use a 0-sized font */

    if (!(bfontname && 
	  (bfs = XLoadQueryFont (screen->display, bfontname))))
      bfs = nfs;
    else
        if (bfs->ascent + bfs->descent == 0  ||  bfs->max_bounds.width == 0)
            goto bad;           /* can't use a 0-sized font */

    mask = (GCFont | GCForeground | GCBackground | GCGraphicsExposures |
	    GCFunction);

    xgcv.font = nfs->fid;
    xgcv.foreground = screen->foreground;
    xgcv.background = term->core.background_pixel;
    xgcv.graphics_exposures = TRUE;	/* default */
    xgcv.function = GXcopy;

    new_normalGC = XtGetGC((Widget)term, mask, &xgcv);
    if (!new_normalGC) goto bad;

    if (nfs == bfs) {			/* there is no bold font */
	new_normalboldGC = new_normalGC;
    } else {
	xgcv.font = bfs->fid;
	new_normalboldGC = XtGetGC((Widget)term, mask, &xgcv);
	if (!new_normalboldGC) goto bad;
    }

    xgcv.font = nfs->fid;
    xgcv.foreground = term->core.background_pixel;
    xgcv.background = screen->foreground;
    new_reverseGC = XtGetGC((Widget)term, mask, &xgcv);
    if (!new_reverseGC) goto bad;

    if (nfs == bfs) {			/* there is no bold font */
	new_reverseboldGC = new_reverseGC;
    } else {
	xgcv.font = bfs->fid;
	new_reverseboldGC = XtGetGC((Widget)term, mask, &xgcv);
	if (!new_reverseboldGC) goto bad;
    }

    if (screen->normalGC != screen->normalboldGC)
	XtReleaseGC ((Widget) term, screen->normalboldGC);
    XtReleaseGC ((Widget) term, screen->normalGC);
    if (screen->reverseGC != screen->reverseboldGC)
	XtReleaseGC ((Widget) term, screen->reverseboldGC);
    XtReleaseGC ((Widget) term, screen->reverseGC);
    screen->normalGC = new_normalGC;
    screen->normalboldGC = new_normalboldGC;
    screen->reverseGC = new_reverseGC;
    screen->reverseboldGC = new_reverseboldGC;
    screen->fnt_norm = nfs;
    screen->fnt_bold = bfs;
    screen->enbolden = (nfs == bfs);
    set_menu_font (False);
    screen->menu_font_number = fontnum;
    set_menu_font (True);
    if (tmpname) {			/* if setting escape or sel */
	if (screen->menu_font_names[fontnum])
	  free (screen->menu_font_names[fontnum]);
	screen->menu_font_names[fontnum] = tmpname;
	if (fontnum == fontMenu_fontescape) {
	    set_sensitivity (term->screen.fontMenu,
			     fontMenuEntries[fontMenu_fontescape].widget,
			     TRUE);
	}
    }
    set_cursor_gcs (screen);
    update_font_info (screen, doresize);
    return 1;

  bad:
    if (tmpname) free (tmpname);
    if (new_normalGC)
      XtReleaseGC ((Widget) term, screen->normalGC);
    if (new_normalGC && new_normalGC != new_normalboldGC)
      XtReleaseGC ((Widget) term, new_normalboldGC);
    if (new_reverseGC)
      XtReleaseGC ((Widget) term, new_reverseGC);
    if (new_reverseGC && new_reverseGC != new_reverseboldGC)
      XtReleaseGC ((Widget) term, new_reverseboldGC);
    if (nfs) XFreeFont (screen->display, nfs);
    if (bfs && nfs != bfs) XFreeFont (screen->display, bfs);
    return 0;
}

static void
update_font_info (screen, doresize)
    TScreen *screen;
    Bool doresize;
{
    int i, j, width, height, scrollbar_width;

    screen->fullVwin.f_width = screen->fnt_norm->max_bounds.width;
    screen->fullVwin.f_height = (screen->fnt_norm->ascent +
				 screen->fnt_norm->descent);
    scrollbar_width = (term->misc.scrollbar || term->misc.sb_right ? 
		       screen->scrollWidget->core.width +
		       screen->scrollWidget->core.border_width : 0);
    i = 2 * screen->border + scrollbar_width;
    j = 2 * screen->border;
    width = (screen->max_col + 1) * screen->fullVwin.f_width + i;
    height = (screen->max_row + 1) * screen->fullVwin.f_height + j;
    screen->fullVwin.fullwidth = width;
    screen->fullVwin.fullheight = height;
    screen->fullVwin.width = width - i;
    screen->fullVwin.height = height - j;

    if (doresize) {
	if (VWindow(screen)) {
	    XClearWindow (screen->display, VWindow(screen));
	}
	DoResizeScreen (term);		/* set to the new natural size */
	if (screen->scrollWidget) {
	    if (term->misc.sb_right)
                ResizeScrollBar (screen->scrollWidget,
                                 screen->fullVwin.fullwidth -
                                 screen->scrollWidget->core.width -
                                 screen->scrollWidget->core.border_width, 0,
                                (Height(screen) + screen->border * 2)-1);
	    else
	        ResizeScrollBar (screen->scrollWidget, -1, -1,
			         Height(screen) + screen->border * 2);
        }
	Redraw ();
    }
    set_vt_box (screen);
}

set_vt_box (screen)
	TScreen *screen;
{
	XPoint	*vp;

	vp = &VTbox[1];
	(vp++)->x = FontWidth(screen) - 1;
	(vp++)->y = FontHeight(screen) - 1;
	(vp++)->x = -(FontWidth(screen) - 1);
	vp->y = -(FontHeight(screen) - 1);
	screen->box = VTbox;
}


set_cursor_gcs (screen)
    TScreen *screen;
{
    XGCValues xgcv;
    unsigned long mask;
    unsigned long cc = screen->cursorcolor;
    unsigned long fg = screen->foreground;
    unsigned long bg = term->core.background_pixel;
    GC new_cursorGC = NULL, new_reversecursorGC = NULL;
    GC new_cursoroutlineGC = NULL;

    /*
     * Let's see, there are three things that have "color":
     *
     *     background
     *     text
     *     cursorblock
     *
     * And, there are four situation when drawing a cursor, if we decide
     * that we like have a solid block of cursor color with the letter
     * that it is highlighting shown in the background color to make it
     * stand out:
     *
     *     selected window, normal video - background on cursor
     *     selected window, reverse video - foreground on cursor
     *     unselected window, normal video - foreground on background
     *     unselected window, reverse video - background on foreground
     *
     * Since the last two are really just normalGC and reverseGC, we only
     * need two new GC's.  Under monochrome, we get the same effect as
     * above by setting cursor color to foreground.
     */

    xgcv.font = screen->fnt_norm->fid;
    mask = (GCForeground | GCBackground | GCFont);
    if (cc != fg && cc != bg) {
	/* we have a colored cursor */
	xgcv.foreground = fg;
	xgcv.background = cc;
	new_cursorGC = XtGetGC ((Widget) term, mask, &xgcv);

	if (screen->always_highlight) {
	    new_reversecursorGC = (GC) 0;
	    new_cursoroutlineGC = (GC) 0;
	} else {
	    xgcv.foreground = bg;
	    xgcv.background = cc;
	    new_reversecursorGC = XtGetGC ((Widget) term, mask, &xgcv);
	    xgcv.foreground = cc;
	    xgcv.background = bg;
	    new_cursoroutlineGC = XtGetGC ((Widget) term, mask, &xgcv);
		}
    } else {
	new_cursorGC = (GC) 0;
	new_reversecursorGC = (GC) 0;
	new_cursoroutlineGC = (GC) 0;
    }
    if (screen->cursorGC) XtReleaseGC ((Widget)term, screen->cursorGC);
    if (screen->reversecursorGC)
	XtReleaseGC ((Widget)term, screen->reversecursorGC);
    if (screen->cursoroutlineGC)
	XtReleaseGC ((Widget)term, screen->cursoroutlineGC);
    screen->cursorGC = new_cursorGC;
    screen->reversecursorGC = new_reversecursorGC;
    screen->cursoroutlineGC = new_cursoroutlineGC;
}
