xref: /xsrc/external/mit/xterm/dist/ptyx.h

/* $XTermId: ptyx.h,v 1.854 2017/05/29 00:49:11 tom Exp $ */

/*
 * Copyright 1999-2016,2017 by Thomas E. Dickey
 *
 *                         All Rights Reserved
 *
 * 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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(s) of the above copyright
 * holders shall not be used in advertising or otherwise to promote the
 * sale, use or other dealings in this Software without prior written
 * authorization.
 *
 *
 * 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.
 */

#ifndef included_ptyx_h
#define included_ptyx_h 1

#ifdef HAVE_CONFIG_H
#include <xtermcfg.h>
#endif

/* ptyx.h */
/* *INDENT-OFF* */
/* @(#)ptyx.h	X10/6.6	11/10/86 */

#include <X11/IntrinsicP.h>
#include <X11/Shell.h>		/* for XtNdieCallback, etc. */
#include <X11/StringDefs.h>	/* for standard resource names */
#include <X11/Xmu/Misc.h>	/* For Max() and Min(). */

#undef bcopy
#undef bzero
#include <X11/Xfuncs.h>

#include <X11/Xosdefs.h>
#include <X11/Xmu/Converters.h>
#ifdef XRENDERFONT
#include <X11/Xft/Xft.h>
#endif

#include <stdio.h>

#ifdef HAVE_STDINT_H
#include <stdint.h>
#define DECONST(type,s) ((type *)(intptr_t)(const type *)(s))
#else
#define DECONST(type,s) ((type *)(s))
#endif

/* adapted from IntrinsicI.h */
#define MyStackAlloc(size, stack_cache_array)     \
    ((size) <= sizeof(stack_cache_array)	  \
    ?  (XtPointer)(stack_cache_array)		  \
    :  (XtPointer)malloc((size_t)(size)))

#define MyStackFree(pointer, stack_cache_array) \
    if ((pointer) != ((char *)(stack_cache_array))) free(pointer)

/* adapted from vile (vi-like-emacs) */
#define TypeCallocN(type,n)	(type *)calloc((size_t) (n), sizeof(type))
#define TypeCalloc(type)	TypeCallocN(type, 1)

#define TypeMallocN(type,n)	(type *)malloc(sizeof(type) * (size_t) (n))
#define TypeMalloc(type)	TypeMallocN(type, 1)

#define TypeRealloc(type,n,p)	(type *)realloc(p, (n) * sizeof(type))

#define TypeXtReallocN(t,p,n)	(t *)(void *)XtRealloc((char *)(p), (Cardinal)(sizeof(t) * (size_t) (n)))

#define TypeXtMallocX(type,n)	(type *)(void *)XtMalloc((Cardinal)(sizeof(type) + (size_t) (n)))
#define TypeXtMallocN(type,n)	(type *)(void *)XtMalloc((Cardinal)(sizeof(type) * (size_t) (n)))
#define TypeXtMalloc(type)	TypeXtMallocN(type, 1)

/* use these to allocate partly-structured data */
#define TextAlloc(n)		(char *)malloc(sizeof(char) * (size_t) ((n) + 1))
#define CastMalloc(type)	(type *)malloc(sizeof(type))

#define BumpBuffer(type, buffer, size, want) \
	if (want >= size) { \
	    size = 1 + (want * 2); \
	    buffer = TypeRealloc(type, size, buffer); \
	}

#define BfBuf(type) screen->bf_buf_##type
#define BfLen(type) screen->bf_len_##type

#define TypedBuffer(type) \
	type		*bf_buf_##type; \
	Cardinal	bf_len_##type

#define BumpTypedBuffer(type, want) \
	BumpBuffer(type, BfBuf(type), BfLen(type), want)

#define FreeTypedBuffer(type) \
	if (BfBuf(type) != 0) { \
	    free(BfBuf(type)); \
	    BfBuf(type) = 0; \
	} \
	BfLen(type) = 0

/*
** System V definitions
*/

#ifdef att
#define ATT
#endif

#ifdef SVR4
#undef  SYSV			/* predefined on Solaris 2.4 */
#define SYSV			/* SVR4 is (approx) superset of SVR3 */
#define ATT
#endif

#ifdef SYSV
#ifdef X_NOT_POSIX
#if !defined(CRAY) && !defined(SVR4)
#define	dup2(fd1,fd2)	((fd1 == fd2) ? fd1 : \
				(close(fd2), fcntl(fd1, F_DUPFD, fd2)))
#endif
#endif
#endif /* SYSV */

/*
 * Newer versions of <X11/Xft/Xft.h> have a version number.  We use certain
 * features from that.
 */
#if defined(XRENDERFONT) && defined(XFT_VERSION) && XFT_VERSION >= 20100
#define HAVE_TYPE_FCCHAR32	1	/* compatible: XftChar16 */
#define HAVE_TYPE_XFTCHARSPEC	1	/* new type XftCharSpec */
#endif

/*
** Definitions to simplify ifdef's for pty's.
*/
#define USE_PTY_DEVICE 1
#define USE_PTY_SEARCH 1

#if defined(__osf__) || (defined(linux) && defined(__GLIBC__) && (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
#undef USE_PTY_DEVICE
#undef USE_PTY_SEARCH
#define USE_PTS_DEVICE 1
#elif defined(VMS)
#undef USE_PTY_DEVICE
#undef USE_PTY_SEARCH
#elif defined(PUCC_PTYD)
#undef USE_PTY_SEARCH
#elif (defined(sun) && defined(SVR4)) || defined(_ALL_SOURCE) || defined(__CYGWIN__)
#undef USE_PTY_SEARCH
#elif defined(__OpenBSD__)
#undef USE_PTY_SEARCH
#undef USE_PTY_DEVICE
#endif

#if (defined (__GLIBC__) && ((__GLIBC__ > 2) || (__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 1)))
#define USE_HANDSHAKE 0	/* "recent" Linux systems do not require handshaking */
#endif

#if (defined (__GLIBC__) && ((__GLIBC__ > 2) || (__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 1)))
#define USE_USG_PTYS
#elif (defined(ATT) && !defined(__sgi)) || defined(__MVS__) || (defined(SYSV) && defined(i386))
#define USE_USG_PTYS
#endif

/*
 * More systems than not require pty-handshaking.
 */
#ifndef USE_HANDSHAKE
#define USE_HANDSHAKE 1
#endif

/*
** allow for mobility of the pty master/slave directories
*/
#ifndef PTYDEV
#if defined(__hpux)
#define	PTYDEV		"/dev/ptym/ptyxx"
#elif defined(__MVS__)
#define	PTYDEV		"/dev/ptypxxxx"
#else
#define	PTYDEV		"/dev/ptyxx"
#endif
#endif	/* !PTYDEV */

#ifndef TTYDEV
#if defined(__hpux)
#define TTYDEV		"/dev/pty/ttyxx"
#elif defined(__MVS__)
#define TTYDEV		"/dev/ptypxxxx"
#elif defined(USE_PTS_DEVICE)
#define TTYDEV		"/dev/pts/0"
#else
#define	TTYDEV		"/dev/ttyxx"
#endif
#endif	/* !TTYDEV */

#ifndef PTYCHAR1
#ifdef __hpux
#define PTYCHAR1	"zyxwvutsrqp"
#else	/* !__hpux */
#define	PTYCHAR1	"pqrstuvwxyzPQRSTUVWXYZ"
#endif	/* !__hpux */
#endif	/* !PTYCHAR1 */

#ifndef PTYCHAR2
#ifdef __hpux
#define	PTYCHAR2	"fedcba9876543210"
#else	/* !__hpux */
#if defined(__DragonFly__) || defined(__FreeBSD__)
#define	PTYCHAR2	"0123456789abcdefghijklmnopqrstuv"
#else /* !__FreeBSD__ */
#define	PTYCHAR2	"0123456789abcdef"
#endif /* !__FreeBSD__ */
#endif	/* !__hpux */
#endif	/* !PTYCHAR2 */

#ifndef TTYFORMAT
#if defined(CRAY)
#define TTYFORMAT "/dev/ttyp%03d"
#elif defined(__MVS__)
#define TTYFORMAT "/dev/ttyp%04d"
#else
#define TTYFORMAT "/dev/ttyp%d"
#endif
#endif /* TTYFORMAT */

#ifndef PTYFORMAT
#ifdef CRAY
#define PTYFORMAT "/dev/pty/%03d"
#elif defined(__MVS__)
#define PTYFORMAT "/dev/ptyp%04d"
#else
#define PTYFORMAT "/dev/ptyp%d"
#endif
#endif /* PTYFORMAT */

#ifndef PTYCHARLEN
#ifdef CRAY
#define PTYCHARLEN 3
#elif defined(__MVS__)
#define PTYCHARLEN 8     /* OS/390 stores, e.g. ut_id="ttyp1234"  */
#else
#define PTYCHARLEN 2
#endif
#endif

#ifndef MAXPTTYS
#ifdef CRAY
#define MAXPTTYS 256
#else
#define MAXPTTYS 2048
#endif
#endif

/* Until the translation manager comes along, I have to do my own translation of
 * mouse events into the proper routines. */

typedef enum {
    NORMAL = 0
    , LEFTEXTENSION
    , RIGHTEXTENSION
} EventMode;

/*
 * The origin of a screen is 0, 0.  Therefore, the number of rows
 * on a screen is screen->max_row + 1, and similarly for columns.
 */
#define MaxCols(screen)		((screen)->max_col + 1)
#define MaxRows(screen)		((screen)->max_row + 1)

typedef unsigned char Char;		/* to support 8 bit chars */
typedef Char *ScrnPtr;
typedef ScrnPtr *ScrnBuf;

/*
 * Declare an X String, but for unsigned chars.
 */
#ifdef _CONST_X_STRING
typedef const Char *UString;
#else
typedef Char *UString;
#endif

#define IsEmpty(s) ((s) == 0 || *(s) == '\0')
#define IsSpace(c) ((c) == ' ' || (c) == '\t' || (c) == '\r' || (c) == '\n')

/*
 * Check strtol result, using "FullS2L" when no more data is expected, and
 * "PartS2L" when more data may follow in the string.
 */
#define FullS2L(s,d) (PartS2L(s,d) && (*(d) == '\0'))
#define PartS2L(s,d) (isdigit(CharOf(*(s))) && (d) != (s) && (d) != 0)

#define CASETYPE(name) case name: result = #name; break

#define CharOf(n) ((Char)(n))

typedef struct {
    int row;
    int col;
} CELL;

#define isSameRow(a,b)		((a)->row == (b)->row)
#define isSameCol(a,b)		((a)->col == (b)->col)
#define isSameCELL(a,b)		(isSameRow(a,b) && isSameCol(a,b))

#define xBIT(n)         (1 << (n))

/*
 * ANSI emulation, special character codes
 */
#define ANSI_EOT	0x04
#define ANSI_BEL	0x07
#define ANSI_BS		0x08
#define ANSI_HT		0x09
#define ANSI_LF		0x0A
#define ANSI_VT		0x0B
#define	ANSI_FF		0x0C		/* C0, C1 control names		*/
#define ANSI_CR		0x0D
#define ANSI_SO		0x0E
#define ANSI_SI		0x0F
#define	ANSI_XON	0x11		/* DC1 */
#define	ANSI_XOFF	0x13		/* DC3 */
#define	ANSI_NAK	0x15
#define	ANSI_CAN	0x18
#define	ANSI_ESC	0x1B
#define	ANSI_SPA	0x20
#define XTERM_POUND	0x1E		/* internal mapping for '#'	*/
#define	ANSI_DEL	0x7F
#define	ANSI_SS2	0x8E
#define	ANSI_SS3	0x8F
#define	ANSI_DCS	0x90
#define	ANSI_SOS	0x98
#define	ANSI_CSI	0x9B
#define	ANSI_ST		0x9C
#define	ANSI_OSC	0x9D
#define	ANSI_PM		0x9E
#define	ANSI_APC	0x9F

#define L_CURL		'{'
#define R_CURL		'}'

#define MIN_DECID  52			/* can emulate VT52 */
#define MAX_DECID 525			/* ...through VT525 */

#ifndef DFT_DECID
#define DFT_DECID "vt420"		/* default VT420 */
#endif

#ifndef DFT_KBD_DIALECT
#define DFT_KBD_DIALECT "B"		/* default USASCII */
#endif

/* constants used for utf8 mode */
#define UCS_REPL	0xfffd
#define UCS_LIMIT	0x80000000U	/* both limit and flag for non-UCS */

#define TERMCAP_SIZE 1500		/* 1023 is standard; 'screen' exceeds */

#define MAX_XLFD_FONTS	1
#define MAX_XFT_FONTS	1
#define NMENUFONTS	9		/* font entries in fontMenu */

#define	NBOX	5			/* Number of Points in box	*/
#define	NPARAM	30			/* Max. parameters		*/

typedef struct {
	String opt;
	String desc;
} OptionHelp;

typedef	struct {
	int	count;			/* number of values in params[]	*/
	int	has_subparams;		/* true if there are any sub's	*/
	int	is_sub[NPARAM];		/* true for subparam		*/
	int	params[NPARAM];		/* parameter value		*/
} PARAMS;

typedef short ParmType;

typedef struct {
	Char		a_type;		/* CSI, etc., see unparseq()	*/
	Char		a_pintro;	/* private-mode char, if any	*/
	const char *	a_delim;	/* between parameters (;)	*/
	Char		a_inters;	/* special (before final-char)	*/
	Char		a_final;	/* final-char			*/
	ParmType	a_nparam;	/* # of parameters		*/
	ParmType	a_param[NPARAM]; /* Parameters			*/
	Char		a_radix[NPARAM]; /* Parameters			*/
} ANSI;

#define TEK_FONT_LARGE 0
#define TEK_FONT_2 1
#define TEK_FONT_3 2
#define TEK_FONT_SMALL 3
#define	TEKNUMFONTS 4

/* Actually there are 5 types of lines, but four are non-solid lines */
#define	TEKNUMLINES	4

typedef struct {
	int	x;
	int	y;
	int	fontsize;
	unsigned linetype;
} Tmodes;

typedef struct {
	int Twidth;
	int Theight;
} T_fontsize;

typedef struct {
	short *bits;
	int x;
	int y;
	int width;
	int height;
} BitmapBits;

#define	SAVELINES		64      /* default # lines to save      */
#define SCROLLLINES 1			/* default # lines to scroll    */

#define EXCHANGE(a,b,tmp) tmp = a; a = b; b = tmp

/***====================================================================***/

#if (XtSpecificationRelease < 6)
#ifndef NO_ACTIVE_ICON
#define NO_ACTIVE_ICON 1 /* Note: code relies on an X11R6 function */
#endif
#endif

#ifndef OPT_AIX_COLORS
#define OPT_AIX_COLORS  1 /* true if xterm is configured with AIX (16) colors */
#endif

#ifndef OPT_ALLOW_XXX_OPS
#define OPT_ALLOW_XXX_OPS 1 /* true if xterm adds "Allow XXX Ops" submenu */
#endif

#ifndef OPT_BLINK_CURS
#define OPT_BLINK_CURS  1 /* true if xterm has blinking cursor capability */
#endif

#ifndef OPT_BLINK_TEXT
#define OPT_BLINK_TEXT  OPT_BLINK_CURS /* true if xterm has blinking text capability */
#endif

#ifndef OPT_BOX_CHARS
#define OPT_BOX_CHARS	1 /* true if xterm can simulate box-characters */
#endif

#ifndef OPT_BUILTIN_XPMS
#define OPT_BUILTIN_XPMS 0 /* true if all xpm data is compiled-in */
#endif

#ifndef OPT_BROKEN_OSC
#ifdef linux
#define OPT_BROKEN_OSC	1 /* man console_codes, 1st paragraph - cf: ECMA-48 */
#else
#define OPT_BROKEN_OSC	0 /* true if xterm allows Linux's broken OSC parsing */
#endif
#endif

#ifndef OPT_BROKEN_ST
#define OPT_BROKEN_ST	1 /* true if xterm allows old/broken OSC parsing */
#endif

#ifndef OPT_C1_PRINT
#define OPT_C1_PRINT	1 /* true if xterm allows C1 controls to be printable */
#endif

#ifndef OPT_CLIP_BOLD
#define OPT_CLIP_BOLD	1 /* true if xterm uses clipping to avoid bold-trash */
#endif

#ifndef OPT_COLOR_CLASS
#define OPT_COLOR_CLASS 1 /* true if xterm uses separate color-resource classes */
#endif

#ifndef OPT_COLOR_RES
#define OPT_COLOR_RES   1 /* true if xterm delays color-resource evaluation */
#endif

#ifndef OPT_DABBREV
#define OPT_DABBREV 0	/* dynamic abbreviations */
#endif

#ifndef OPT_DEC_CHRSET
#define OPT_DEC_CHRSET  1 /* true if xterm is configured for DEC charset */
#endif

#ifndef OPT_DEC_LOCATOR
#define	OPT_DEC_LOCATOR 0 /* true if xterm supports VT220-style mouse events */
#endif

#ifndef OPT_DEC_RECTOPS
#define OPT_DEC_RECTOPS 0 /* true if xterm is configured for VT420 rectangles */
#endif

#ifndef OPT_SIXEL_GRAPHICS
#define OPT_SIXEL_GRAPHICS 0 /* true if xterm supports VT240-style sixel graphics */
#endif

#ifndef OPT_SCREEN_DUMPS
#define OPT_SCREEN_DUMPS 0 /* true if xterm supports screen dumps */
#endif

#ifndef OPT_REGIS_GRAPHICS
#define OPT_REGIS_GRAPHICS 0 /* true if xterm supports VT125/VT240/VT330 ReGIS graphics */
#endif

#ifndef OPT_GRAPHICS
#define OPT_GRAPHICS 0 /* true if xterm is configured for any type of graphics */
#endif

#ifndef OPT_DEC_SOFTFONT
#define OPT_DEC_SOFTFONT 0 /* true if xterm is configured for VT220 softfonts */
#endif

#ifndef OPT_DOUBLE_BUFFER
#define OPT_DOUBLE_BUFFER 0 /* true if using double-buffering */
#endif

#ifndef OPT_EBCDIC
#ifdef __MVS__
#define OPT_EBCDIC 1
#else
#define OPT_EBCDIC 0
#endif
#endif

#ifndef OPT_EXEC_XTERM
#define OPT_EXEC_XTERM 0 /* true if xterm can fork/exec copies of itself */
#endif

#ifndef OPT_EXTRA_PASTE
#define OPT_EXTRA_PASTE 1
#endif

#ifndef OPT_FIFO_LINES
#define OPT_FIFO_LINES 0 /* optimize save-lines feature using FIFO */
#endif

#ifndef OPT_FOCUS_EVENT
#define OPT_FOCUS_EVENT	1 /* focus in/out events */
#endif

#ifndef OPT_HP_FUNC_KEYS
#define OPT_HP_FUNC_KEYS 0 /* true if xterm supports HP-style function keys */
#endif

#ifndef OPT_I18N_SUPPORT
#if (XtSpecificationRelease >= 5)
#define OPT_I18N_SUPPORT 1 /* true if xterm uses internationalization support */
#else
#define OPT_I18N_SUPPORT 0
#endif
#endif

#ifndef OPT_INITIAL_ERASE
#define OPT_INITIAL_ERASE 1 /* use pty's erase character if it's not 128 */
#endif

#ifndef OPT_INPUT_METHOD
#if (XtSpecificationRelease >= 6)
#define OPT_INPUT_METHOD 1 /* true if xterm uses input-method support */
#else
#define OPT_INPUT_METHOD 0
#endif
#endif

#ifndef OPT_ISO_COLORS
#define OPT_ISO_COLORS  1 /* true if xterm is configured with ISO colors */
#endif

#ifndef OPT_256_COLORS
#define OPT_256_COLORS  0 /* true if xterm is configured with 256 colors */
#endif

#ifndef OPT_88_COLORS
#define OPT_88_COLORS	0 /* true if xterm is configured with 88 colors */
#endif

#ifndef OPT_HIGHLIGHT_COLOR
#define OPT_HIGHLIGHT_COLOR 1 /* true if xterm supports color highlighting */
#endif

#ifndef OPT_LOAD_VTFONTS
#define OPT_LOAD_VTFONTS 0 /* true if xterm has load-vt-fonts() action */
#endif

#ifndef OPT_LUIT_PROG
#define OPT_LUIT_PROG   0 /* true if xterm supports luit */
#endif

#ifndef OPT_MAXIMIZE
#define OPT_MAXIMIZE	1 /* add actions for iconify ... maximize */
#endif

#ifndef OPT_MINI_LUIT
#define OPT_MINI_LUIT   0 /* true if xterm supports built-in mini-luit */
#endif

#ifndef OPT_MOD_FKEYS
#define OPT_MOD_FKEYS	1 /* modify cursor- and function-keys in normal mode */
#endif

#ifndef OPT_NUM_LOCK
#define OPT_NUM_LOCK	1 /* use NumLock key only for numeric-keypad */
#endif

#ifndef OPT_PASTE64
#define OPT_PASTE64	0 /* program control of select/paste via base64 */
#endif

#ifndef OPT_PC_COLORS
#define OPT_PC_COLORS   1 /* true if xterm supports PC-style (bold) colors */
#endif

#ifndef OPT_PRINT_ON_EXIT
#define OPT_PRINT_ON_EXIT 1 /* true allows xterm to dump screen on X error */
#endif

#ifndef OPT_PTY_HANDSHAKE
#define OPT_PTY_HANDSHAKE USE_HANDSHAKE	/* avoid pty races on older systems */
#endif

#ifndef OPT_PRINT_COLORS
#define OPT_PRINT_COLORS 1 /* true if we print color information */
#endif

#ifndef OPT_READLINE
#define OPT_READLINE	0 /* mouse-click/paste support for readline */
#endif

#ifndef OPT_RENDERFONT
#ifdef XRENDERFONT
#define OPT_RENDERFONT 1
#else
#define OPT_RENDERFONT 0
#endif
#endif

#ifndef OPT_RENDERWIDE
#if OPT_RENDERFONT && OPT_WIDE_CHARS && defined(HAVE_TYPE_XFTCHARSPEC)
#define OPT_RENDERWIDE 1
#else
#define OPT_RENDERWIDE 0
#endif
#endif

#ifndef OPT_REPORT_CCLASS
#define OPT_REPORT_CCLASS  1 /* provide "-report-charclass" option */
#endif

#ifndef OPT_REPORT_COLORS
#define OPT_REPORT_COLORS  1 /* provide "-report-colors" option */
#endif

#ifndef OPT_REPORT_FONTS
#define OPT_REPORT_FONTS   1 /* provide "-report-fonts" option */
#endif

#ifndef OPT_SAME_NAME
#define OPT_SAME_NAME   1 /* suppress redundant updates of title, icon, etc. */
#endif

#ifndef OPT_SAVE_LINES
#define OPT_SAVE_LINES OPT_FIFO_LINES /* optimize save-lines feature */
#endif

#ifndef OPT_SCO_FUNC_KEYS
#define OPT_SCO_FUNC_KEYS 0 /* true if xterm supports SCO-style function keys */
#endif

#ifndef OPT_SUN_FUNC_KEYS
#define OPT_SUN_FUNC_KEYS 1 /* true if xterm supports Sun-style function keys */
#endif

#ifndef OPT_SCROLL_LOCK
#define OPT_SCROLL_LOCK 1 /* true if xterm interprets fontsize-shifting */
#endif

#ifndef OPT_SELECT_REGEX
#define OPT_SELECT_REGEX 0 /* true if xterm supports regular-expression selects */
#endif

#ifndef OPT_SELECTION_OPS
#define OPT_SELECTION_OPS 1 /* true if xterm supports operations on selection */
#endif

#ifndef OPT_SESSION_MGT
#if defined(XtNdieCallback) && defined(XtNsaveCallback)
#define OPT_SESSION_MGT 1
#else
#define OPT_SESSION_MGT 0
#endif
#endif

#ifndef OPT_SHIFT_FONTS
#define OPT_SHIFT_FONTS 0 /* true if xterm interprets fontsize-shifting */
#endif

#ifndef OPT_SUNPC_KBD
#define OPT_SUNPC_KBD	1 /* true if xterm supports Sun/PC keyboard map */
#endif

#ifndef OPT_TCAP_FKEYS
#define OPT_TCAP_FKEYS	0 /* true for experimental termcap function-keys */
#endif

#ifndef OPT_TCAP_QUERY
#define OPT_TCAP_QUERY	0 /* true for experimental termcap query */
#endif

#ifndef OPT_TEK4014
#define OPT_TEK4014     1 /* true if we're using tek4014 emulation */
#endif

#ifndef OPT_TOOLBAR
#define OPT_TOOLBAR	0 /* true if xterm supports toolbar menus */
#endif

#ifndef OPT_TRACE
#define OPT_TRACE       0 /* true if we're using debugging traces */
#endif

#ifndef OPT_TRACE_FLAGS
#define OPT_TRACE_FLAGS 0 /* additional tracing used for SCRN_BUF_FLAGS */
#endif

#ifndef OPT_VT52_MODE
#define OPT_VT52_MODE   1 /* true if xterm supports VT52 emulation */
#endif

#ifndef OPT_WIDE_ATTRS
#define OPT_WIDE_ATTRS  1 /* true if xterm supports 16-bit attributes */
#endif

#ifndef OPT_WIDE_CHARS
#define OPT_WIDE_CHARS  0 /* true if xterm supports 16-bit characters */
#endif

#ifndef OPT_WIDER_ICHAR
#define OPT_WIDER_ICHAR 1 /* true if xterm uses 32-bits for wide-chars */
#endif

#ifndef OPT_XMC_GLITCH
#define OPT_XMC_GLITCH	0 /* true if xterm supports xmc (magic cookie glitch) */
#endif

#ifndef OPT_ZICONBEEP
#define OPT_ZICONBEEP   1 /* true if xterm supports "-ziconbeep" option */
#endif

/***====================================================================***/

#if OPT_AIX_COLORS && !OPT_ISO_COLORS
/* You must have ANSI/ISO colors to support AIX colors */
#undef  OPT_AIX_COLORS
#define OPT_AIX_COLORS 0
#endif

#if OPT_COLOR_RES && !OPT_ISO_COLORS
/* You must have ANSI/ISO colors to support ColorRes logic */
#undef  OPT_COLOR_RES
#define OPT_COLOR_RES 0
#endif

#if OPT_256_COLORS && (OPT_WIDE_CHARS || OPT_RENDERFONT || OPT_XMC_GLITCH)
/* It's actually more complicated than that - but by trimming options you can
 * have 256 color resources though.
 */
#define OPT_COLOR_RES2 1
#else
#define OPT_COLOR_RES2 0
#endif

#if OPT_PASTE64 && !OPT_READLINE
/* OPT_PASTE64 uses logic from OPT_READLINE */
#undef  OPT_READLINE
#define OPT_READLINE 1
#endif

#if OPT_PC_COLORS && !OPT_ISO_COLORS
/* You must have ANSI/ISO colors to support PC colors */
#undef  OPT_PC_COLORS
#define OPT_PC_COLORS 0
#endif

#if OPT_PRINT_COLORS && !OPT_ISO_COLORS
/* You must have ANSI/ISO colors to be able to print them */
#undef  OPT_PRINT_COLORS
#define OPT_PRINT_COLORS 0
#endif

#if OPT_256_COLORS && !OPT_ISO_COLORS
/* You must have ANSI/ISO colors to support 256 colors */
#undef  OPT_256_COLORS
#define OPT_256_COLORS 0
#endif

#if OPT_88_COLORS && !OPT_ISO_COLORS
/* You must have ANSI/ISO colors to support 88 colors */
#undef  OPT_88_COLORS
#define OPT_88_COLORS 0
#endif

#if OPT_88_COLORS && OPT_256_COLORS
/* 256 colors supersedes 88 colors */
#undef  OPT_88_COLORS
#define OPT_88_COLORS 0
#endif

/***====================================================================***/

/*
 * Indices for menu_font_names[][]
 */
typedef enum {
    fNorm = 0			/* normal font */
    , fBold			/* bold font */
#if OPT_WIDE_ATTRS || OPT_RENDERWIDE
    , fItal			/* italic font */
#endif
#if OPT_WIDE_CHARS
    , fWide			/* double-width font */
    , fWBold			/* double-width bold font */
    , fWItal			/* double-width italic font */
#endif
    , fMAX
} VTFontEnum;

/*
 * Indices for cachedGCs.c (unrelated to VTFontEnum).
 */
typedef enum {
    gcNorm = 0
    , gcBold
    , gcNormReverse
    , gcBoldReverse
#if OPT_BOX_CHARS
    , gcLine
    , gcDots
#endif
#if OPT_DEC_CHRSET
    , gcCNorm
    , gcCBold
#endif
#if OPT_WIDE_CHARS
    , gcWide
    , gcWBold
    , gcWideReverse
    , gcWBoldReverse
#endif
    , gcVTcursNormal
    , gcVTcursFilled
    , gcVTcursReverse
    , gcVTcursOutline
#if OPT_TEK4014
    , gcTKcurs
#endif
    , gcMAX
} CgsEnum;

#define for_each_text_gc(n) for (n = gcNorm; n < gcVTcursNormal; ++n)
#define for_each_curs_gc(n) for (n = gcVTcursNormal; n <= gcVTcursOutline; ++n)
#define for_each_gc(n)      for (n = gcNorm; n < gcMAX; ++n)

/*
 * Indices for the normal terminal colors in screen.Tcolors[].
 * See also OscTextColors, which has corresponding values.
 */
typedef enum {
    TEXT_FG = 0			/* text foreground */
    , TEXT_BG			/* text background */
    , TEXT_CURSOR		/* text cursor */
    , MOUSE_FG			/* mouse foreground */
    , MOUSE_BG			/* mouse background */
#if OPT_TEK4014
    , TEK_FG = 5		/* tektronix foreground */
    , TEK_BG			/* tektronix background */
#endif
#if OPT_HIGHLIGHT_COLOR
    , HIGHLIGHT_BG = 7		/* highlight background */
#endif
#if OPT_TEK4014
    , TEK_CURSOR = 8		/* tektronix cursor */
#endif
#if OPT_HIGHLIGHT_COLOR
    , HIGHLIGHT_FG = 9		/* highlight foreground */
#endif
    , NCOLORS			/* total number of colors */
} TermColors;

/*
 * Definitions for exec-formatted and insert-formatted actions.
 */
typedef void (*FormatSelect) (Widget, char *, char *, CELL *, CELL *);

typedef struct {
    char *format;
    char *buffer;
    FormatSelect format_select;
#if OPT_PASTE64
    Cardinal base64_paste;
#endif
#if OPT_READLINE
    unsigned paste_brackets;
#endif
} InternalSelect;

/*
 * Constants for titleModes resource
 */
typedef enum {
    tmSetBase16 = 1		/* set title using hex-string */
    , tmGetBase16 = 2		/* get title using hex-string */
#if OPT_WIDE_CHARS
    , tmSetUtf8 = 4		/* like utf8Title, but controllable */
    , tmGetUtf8 = 8		/* retrieve title encoded as UTF-8 */
#endif
} TitleModes;

#define IsTitleMode(xw,mode) (((xw)->screen.title_modes & mode) != 0)

#include <xcharmouse.h>

/*
 * For readability...
 */
#define nrc_percent   100
#define nrc_dquote    200
#define nrc_ampersand 300
typedef enum {
    nrc_ASCII = 0
    ,nrc_British		/* vt100 */
    ,nrc_British_Latin_1	/* vt3xx */
    ,nrc_Cyrillic		/* vt5xx */
    ,nrc_DEC_Spec_Graphic	/* vt100 */
    ,nrc_DEC_Alt_Chars		/* vt100 */
    ,nrc_DEC_Alt_Graphics	/* vt100 */
    ,nrc_DEC_Supp		/* vt2xx */
    ,nrc_DEC_Supp_Graphic	/* vt3xx */
    ,nrc_DEC_Technical		/* vt3xx */
    ,nrc_Dutch			/* vt2xx */
    ,nrc_Finnish		/* vt2xx */
    ,nrc_Finnish2		/* vt2xx */
    ,nrc_French			/* vt2xx */
    ,nrc_French2		/* vt2xx */
    ,nrc_French_Canadian	/* vt2xx */
    ,nrc_French_Canadian2	/* vt3xx */
    ,nrc_German			/* vt2xx */
    ,nrc_Greek			/* vt5xx */
    ,nrc_Greek_Supp		/* vt5xx */
    ,nrc_Hebrew			/* vt5xx */
    ,nrc_Hebrew2		/* vt5xx */
    ,nrc_Hebrew_Supp		/* vt5xx */
    ,nrc_Italian		/* vt2xx */
    ,nrc_Latin_5_Supp		/* vt5xx */
    ,nrc_Latin_Cyrillic		/* vt5xx */
    ,nrc_Norwegian_Danish	/* vt3xx */
    ,nrc_Norwegian_Danish2	/* vt2xx */
    ,nrc_Norwegian_Danish3	/* vt2xx */
    ,nrc_Portugese		/* vt3xx */
    ,nrc_Russian		/* vt5xx */
    ,nrc_SCS_NRCS		/* vt5xx - probably Serbo/Croatian */
    ,nrc_Spanish		/* vt2xx */
    ,nrc_Swedish		/* vt2xx */
    ,nrc_Swedish2		/* vt2xx */
    ,nrc_Swiss			/* vt2xx */
    ,nrc_Turkish		/* vt5xx */
    ,nrc_Turkish2		/* vt5xx */
    ,nrc_Unknown
} DECNRCM_codes;

/*
 * Use this enumerated type to check consistency among dpmodes(), savemodes()
 * restoremodes() and do_decrpm().
 */
typedef enum {
    srm_DECCKM = 1
    ,srm_DECANM = 2
    ,srm_DECCOLM = 3
    ,srm_DECSCLM = 4
    ,srm_DECSCNM = 5
    ,srm_DECOM = 6
    ,srm_DECAWM = 7
    ,srm_DECARM = 8
    ,srm_X10_MOUSE = SET_X10_MOUSE
#if OPT_TOOLBAR
    ,srm_RXVT_TOOLBAR = 10
#endif
#if OPT_BLINK_CURS
    ,srm_ATT610_BLINK = 12
#endif
    ,srm_DECPFF = 18
    ,srm_DECPEX = 19
    ,srm_DECTCEM = 25
    ,srm_RXVT_SCROLLBAR = 30
#if OPT_SHIFT_FONTS
    ,srm_RXVT_FONTSIZE = 35
#endif
#if OPT_TEK4014
    ,srm_DECTEK = 38
#endif
    ,srm_132COLS = 40
    ,srm_CURSES_HACK = 41
    ,srm_DECNRCM = 42
    ,srm_MARGIN_BELL = 44
    ,srm_REVERSEWRAP = 45
#ifdef ALLOWLOGGING
    ,srm_ALLOWLOGGING = 46
#endif
    ,srm_OPT_ALTBUF_CURSOR = 1049
    ,srm_OPT_ALTBUF = 1047
    ,srm_ALTBUF = 47
    ,srm_DECNKM = 66
    ,srm_DECBKM = 67
    ,srm_DECLRMM = 69
#if OPT_SIXEL_GRAPHICS
    ,srm_DECSDM = 80		/* Sixel Display Mode */
#endif
    ,srm_DECNCSM = 95
    ,srm_VT200_MOUSE = SET_VT200_MOUSE
    ,srm_VT200_HIGHLIGHT_MOUSE = SET_VT200_HIGHLIGHT_MOUSE
    ,srm_BTN_EVENT_MOUSE = SET_BTN_EVENT_MOUSE
    ,srm_ANY_EVENT_MOUSE = SET_ANY_EVENT_MOUSE
#if OPT_FOCUS_EVENT
    ,srm_FOCUS_EVENT_MOUSE = SET_FOCUS_EVENT_MOUSE
#endif
    ,srm_EXT_MODE_MOUSE = SET_EXT_MODE_MOUSE
    ,srm_SGR_EXT_MODE_MOUSE = SET_SGR_EXT_MODE_MOUSE
    ,srm_URXVT_EXT_MODE_MOUSE = SET_URXVT_EXT_MODE_MOUSE
    ,srm_ALTERNATE_SCROLL = SET_ALTERNATE_SCROLL
    ,srm_RXVT_SCROLL_TTY_OUTPUT = 1010
    ,srm_RXVT_SCROLL_TTY_KEYPRESS = 1011
    ,srm_EIGHT_BIT_META = 1034
#if OPT_NUM_LOCK
    ,srm_REAL_NUMLOCK = 1035
    ,srm_META_SENDS_ESC = 1036
#endif
    ,srm_DELETE_IS_DEL = 1037
#if OPT_NUM_LOCK
    ,srm_ALT_SENDS_ESC = 1039
#endif
    ,srm_KEEP_SELECTION = 1040
    ,srm_SELECT_TO_CLIPBOARD = 1041
    ,srm_BELL_IS_URGENT = 1042
    ,srm_POP_ON_BELL = 1043
    ,srm_KEEP_CLIPBOARD = 1044
    ,srm_TITE_INHIBIT = 1048
#if OPT_TCAP_FKEYS
    ,srm_TCAP_FKEYS = 1050
#endif
#if OPT_SUN_FUNC_KEYS
    ,srm_SUN_FKEYS = 1051
#endif
#if OPT_HP_FUNC_KEYS
    ,srm_HP_FKEYS = 1052
#endif
#if OPT_SCO_FUNC_KEYS
    ,srm_SCO_FKEYS = 1053
#endif
    ,srm_LEGACY_FKEYS = 1060
#if OPT_SUNPC_KBD
    ,srm_VT220_FKEYS = 1061
#endif
#if OPT_GRAPHICS
    ,srm_PRIVATE_COLOR_REGISTERS = 1070
#endif
#if OPT_READLINE
    ,srm_BUTTON1_MOVE_POINT = SET_BUTTON1_MOVE_POINT
    ,srm_BUTTON2_MOVE_POINT = SET_BUTTON2_MOVE_POINT
    ,srm_DBUTTON3_DELETE = SET_DBUTTON3_DELETE
    ,srm_PASTE_IN_BRACKET = SET_PASTE_IN_BRACKET
    ,srm_PASTE_QUOTE = SET_PASTE_QUOTE
    ,srm_PASTE_LITERAL_NL = SET_PASTE_LITERAL_NL
#endif				/* OPT_READLINE */
#if OPT_SIXEL_GRAPHICS
    ,srm_SIXEL_SCROLLS_RIGHT = 8452
#endif
} DECSET_codes;

/* indices for mapping multiple clicks to selection types */
typedef enum {
    Select_CHAR=0
    ,Select_WORD
    ,Select_LINE
    ,Select_GROUP
    ,Select_PAGE
    ,Select_ALL
#if OPT_SELECT_REGEX
    ,Select_REGEX
#endif
    ,NSELECTUNITS
} SelectUnit;

typedef enum {
    ecSetColor = 1
    , ecGetColor
    , ecGetAnsiColor
    , ecLAST
} ColorOps;

typedef enum {
    efSetFont = 1
    , efGetFont
    , efLAST
} FontOps;

typedef enum {
    esFalse = 0
    , esTrue
    , esAlways
    , esNever
} FullscreenOps;

#ifndef NO_ACTIVE_ICON
typedef enum {
    eiFalse = 0
    , eiTrue
    , eiDefault
    , eiLAST
} AIconOps;
#endif

typedef enum {
    emX10 = 1
    , emLocator
    , emVT200Click
    , emVT200Hilite
    , emAnyButton
    , emAnyEvent
    , emFocusEvent
    , emExtended
    , emSGR
    , emURXVT
    , emAlternateScroll
    , emLAST
} MouseOps;

typedef enum {
    etSetTcap = 1
    , etGetTcap
    , etLAST
} TcapOps;

typedef enum {
    /* 1-23 are chosen to be the same as the control-sequence coding */
    ewRestoreWin = 1
    , ewMinimizeWin = 2
    , ewSetWinPosition = 3
    , ewSetWinSizePixels = 4
    , ewRaiseWin = 5
    , ewLowerWin = 6
    , ewRefreshWin = 7
    , ewSetWinSizeChars = 8
#if OPT_MAXIMIZE
    , ewMaximizeWin = 9
    , ewFullscreenWin = 10
#endif
    , ewGetWinState = 11
    , ewGetWinPosition = 13
    , ewGetWinSizePixels = 14
    , ewGetWinSizeChars = 18
#if OPT_MAXIMIZE
    , ewGetScreenSizeChars = 19
#endif
    , ewGetIconTitle = 20
    , ewGetWinTitle = 21
    , ewPushTitle = 22
    , ewPopTitle = 23
    /* these do not fit into that scheme, which is why we use an array */
    , ewSetWinLines
    , ewSetXprop
    , ewGetSelection
    , ewSetSelection
    /* get the size of the array... */
    , ewLAST
} WindowOps;

#define	COLOR_DEFINED(s,w)	((s)->which & (unsigned) (1<<(w)))
#define	COLOR_VALUE(s,w)	((s)->colors[w])
#define	SET_COLOR_VALUE(s,w,v)	(((s)->colors[w] = (v)), UIntSet((s)->which, (1<<(w))))

#define	COLOR_NAME(s,w)		((s)->names[w])
#define	SET_COLOR_NAME(s,w,v)	(((s)->names[w] = (v)), ((s)->which |= (unsigned) (1<<(w))))

#define	UNDEFINE_COLOR(s,w)	((s)->which &= (~((w)<<1)))

/***====================================================================***/

#if OPT_ISO_COLORS
#define TERM_COLOR_FLAGS(xw)	((xw)->flags & (FG_COLOR|BG_COLOR))
#define COLOR_0		0
#define COLOR_1		1
#define COLOR_2		2
#define COLOR_3		3
#define COLOR_4		4
#define COLOR_5		5
#define COLOR_6		6
#define COLOR_7		7
#define COLOR_8		8
#define COLOR_9		9
#define COLOR_10	10
#define COLOR_11	11
#define COLOR_12	12
#define COLOR_13	13
#define COLOR_14	14
#define COLOR_15	15
#define MIN_ANSI_COLORS 16

#if OPT_256_COLORS
# define NUM_ANSI_COLORS 256
#elif OPT_88_COLORS
# define NUM_ANSI_COLORS 88
#else
# define NUM_ANSI_COLORS MIN_ANSI_COLORS
#endif

#if NUM_ANSI_COLORS > MIN_ANSI_COLORS
# define OPT_EXT_COLORS  1
#else
# define OPT_EXT_COLORS  0
#endif

#define COLOR_BD	(NUM_ANSI_COLORS)	/* BOLD */
#define COLOR_UL	(NUM_ANSI_COLORS+1)	/* UNDERLINE */
#define COLOR_BL	(NUM_ANSI_COLORS+2)	/* BLINK */
#define COLOR_RV	(NUM_ANSI_COLORS+3)	/* REVERSE */

#if OPT_WIDE_ATTRS
#define COLOR_IT	(NUM_ANSI_COLORS+4)	/* ITALIC */
#define MAXCOLORS	(NUM_ANSI_COLORS+5)
#else
#define MAXCOLORS	(NUM_ANSI_COLORS+4)
#endif

#ifndef DFT_COLORMODE
#define DFT_COLORMODE True	/* default colorMode resource */
#endif

#define UseItalicFont(screen) (!(screen)->colorITMode)

#define ReverseOrHilite(screen,flags,hilite) \
		(( screen->colorRVMode && hilite ) || \
		    ( !screen->colorRVMode && \
		      (( (flags & INVERSE) && !hilite) || \
		       (!(flags & INVERSE) &&  hilite)) ))

/* Define a fake XK code, we need it for the fake color response in
 * xtermcapKeycode(). */
#if OPT_TCAP_QUERY && OPT_ISO_COLORS
# define XK_COLORS 0x0003
#endif

#else	/* !OPT_ISO_COLORS */

#define TERM_COLOR_FLAGS(xw) 0

#define UseItalicFont(screen) True
#define ReverseOrHilite(screen,flags,hilite) \
		      (( (flags & INVERSE) && !hilite) || \
		       (!(flags & INVERSE) &&  hilite))

#endif	/* OPT_ISO_COLORS */

# define XK_TCAPNAME 0x0004

#if OPT_AIX_COLORS
#define if_OPT_AIX_COLORS(screen, code) if(screen->colorMode) code
#else
#define if_OPT_AIX_COLORS(screen, code) /* nothing */
#endif

#if OPT_256_COLORS || OPT_88_COLORS || OPT_ISO_COLORS
# define if_OPT_ISO_COLORS(screen, code) if (screen->colorMode) code
#else
# define if_OPT_ISO_COLORS(screen, code) /* nothing */
#endif

#define COLOR_RES_NAME(root) "color" root

#if OPT_COLOR_CLASS
#define COLOR_RES_CLASS(root) "Color" root
#else
#define COLOR_RES_CLASS(root) XtCForeground
#endif

#if OPT_COLOR_RES
#define COLOR_RES(root,offset,value) Sres(COLOR_RES_NAME(root), COLOR_RES_CLASS(root), offset.resource, value)
#define COLOR_RES2(name,class,offset,value) Sres(name, class, offset.resource, value)
#else
#define COLOR_RES(root,offset,value) Cres(COLOR_RES_NAME(root), COLOR_RES_CLASS(root), offset, value)
#define COLOR_RES2(name,class,offset,value) Cres(name, class, offset, value)
#endif

#define CLICK_RES_NAME(count)  "on" count "Clicks"
#define CLICK_RES_CLASS(count) "On" count "Clicks"
#define CLICK_RES(count,offset,value) Sres(CLICK_RES_NAME(count), CLICK_RES_CLASS(count), offset, value)

/***====================================================================***/

#if OPT_DEC_CHRSET
#define if_OPT_DEC_CHRSET(code) code
	/* Use 2 bits for encoding the double high/wide sense of characters */
#define CSET_SWL        0
#define CSET_DHL_TOP    1
#define CSET_DHL_BOT    2
#define CSET_DWL        3
#define NUM_CHRSET      8	/* normal/bold and 4 CSET_xxx values */

	/* Use remaining bits for encoding the other character-sets */
#define CSET_NORMAL(code)  ((code) == CSET_SWL)
#define CSET_DOUBLE(code)  (!CSET_NORMAL(code) && !CSET_EXTEND(code))
#define CSET_EXTEND(code)  ((int)(code) > CSET_DWL)

#define DBLCS_BITS            4
#define DBLCS_MASK            BITS2MASK(DBLCS_BITS)

#define GetLineDblCS(ld)      (((ld)->bufHead >> LINEFLAG_BITS) & DBLCS_MASK)
#define SetLineDblCS(ld,cs)   (ld)->bufHead = (RowData) ((ld->bufHead & LINEFLAG_MASK) | (cs << LINEFLAG_BITS))

#define LineCharSet(screen, ld) \
	((CSET_DOUBLE(GetLineDblCS(ld))) \
		? GetLineDblCS(ld) \
		: (screen)->cur_chrset)
#define LineMaxCol(screen, ld) \
	(CSET_DOUBLE(GetLineDblCS(ld)) \
	 ? (screen->max_col / 2) \
	 : (screen->max_col))
#define LineCursorX(screen, ld, col) \
	(CSET_DOUBLE(GetLineDblCS(ld)) \
	 ? CursorX(screen, 2*(col)) \
	 : CursorX(screen, (col)))
#define LineFontWidth(screen, ld) \
	(CSET_DOUBLE(GetLineDblCS(ld)) \
	 ? 2*FontWidth(screen) \
	 : FontWidth(screen))
#else

#define if_OPT_DEC_CHRSET(code) /*nothing*/

#define GetLineDblCS(ld)       0

#define LineCharSet(screen, ld)         0
#define LineMaxCol(screen, ld)          screen->max_col
#define LineCursorX(screen, ld, col)    CursorX(screen, col)
#define LineFontWidth(screen, ld)       FontWidth(screen)

#endif

#if OPT_LUIT_PROG && !OPT_WIDE_CHARS
#error Luit requires the wide-chars configuration
#endif

/***====================================================================***/

#if OPT_EBCDIC
extern int E2A(int);
extern int A2E(int);
#else
#define E2A(a) (a)
#define A2E(a) (a)
#endif

#define CONTROL(a) (A2E(E2A(a)&037))

/***====================================================================***/

#if OPT_TEK4014
#define TEK4014_ACTIVE(xw)      ((xw)->misc.TekEmu)
#define TEK4014_SHOWN(xw)       ((xw)->misc.Tshow)
#define CURRENT_EMU_VAL(tek,vt) (TEK4014_ACTIVE(term) ? tek : vt)
#define CURRENT_EMU()           CURRENT_EMU_VAL((Widget)tekWidget, (Widget)term)
#else
#define TEK4014_ACTIVE(screen)  0
#define TEK4014_SHOWN(xw)       0
#define CURRENT_EMU_VAL(tek,vt) (vt)
#define CURRENT_EMU()           ((Widget)term)
#endif

/***====================================================================***/

#if OPT_TOOLBAR
#define SHELL_OF(widget) XtParent(XtParent(widget))
#else
#define SHELL_OF(widget) XtParent(widget)
#endif

/***====================================================================***/

#if OPT_VT52_MODE
#define if_OPT_VT52_MODE(screen, code) if(screen->vtXX_level == 0) code
#else
#define if_OPT_VT52_MODE(screen, code) /* nothing */
#endif

/***====================================================================***/

#if OPT_XMC_GLITCH
#define if_OPT_XMC_GLITCH(screen, code) if(screen->xmc_glitch) code
#define XMC_GLITCH 1	/* the character we'll show */
#define XMC_FLAGS (INVERSE|UNDERLINE|BOLD|BLINK)
#else
#define if_OPT_XMC_GLITCH(screen, code) /* nothing */
#endif

/***====================================================================***/

typedef unsigned IFlags;	/* at least 32 bits */

#if OPT_WIDE_ATTRS
typedef unsigned short IAttr;	/* at least 16 bits */
#else
typedef unsigned char IAttr;	/* at least 8 bits */
#endif

/***====================================================================***/

#define LO_BYTE(ch) CharOf((ch) & 0xff)
#define HI_BYTE(ch) CharOf((ch) >> 8)

#if OPT_WIDE_CHARS
#define if_OPT_WIDE_CHARS(screen, code) if(screen->wide_chars) code
#define if_WIDE_OR_NARROW(screen, wide, narrow) if(screen->wide_chars) wide else narrow
#if OPT_WIDER_ICHAR
typedef unsigned IChar;		/* for 8-21 bit characters */
#else
typedef unsigned short IChar;	/* for 8-16 bit characters */
#endif
#else
#define if_OPT_WIDE_CHARS(screen, code) /* nothing */
#define if_WIDE_OR_NARROW(screen, wide, narrow) narrow
typedef unsigned char IChar;	/* for 8-bit characters */
#endif

/***====================================================================***/

#ifndef RES_OFFSET
#define RES_OFFSET(offset) XtOffsetOf(XtermWidgetRec, offset)
#endif

#define RES_NAME(name) name
#define RES_CLASS(name) name

#define Bres(name, class, offset, dftvalue) \
	{RES_NAME(name), RES_CLASS(class), XtRBoolean, sizeof(Boolean), \
	 RES_OFFSET(offset), XtRImmediate, (XtPointer) dftvalue}

#define Cres(name, class, offset, dftvalue) \
	{RES_NAME(name), RES_CLASS(class), XtRPixel, sizeof(Pixel), \
	 RES_OFFSET(offset), XtRString, DECONST(char,dftvalue)}

#define Tres(name, class, offset, dftvalue) \
	COLOR_RES2(name, class, screen.Tcolors[offset], dftvalue) \

#define Fres(name, class, offset, dftvalue) \
	{RES_NAME(name), RES_CLASS(class), XtRFontStruct, sizeof(XFontStruct *), \
	 RES_OFFSET(offset), XtRString, DECONST(char,dftvalue)}

#define Ires(name, class, offset, dftvalue) \
	{RES_NAME(name), RES_CLASS(class), XtRInt, sizeof(int), \
	 RES_OFFSET(offset), XtRImmediate, (XtPointer) dftvalue}

#define Dres(name, class, offset, dftvalue) \
	{RES_NAME(name), RES_CLASS(class), XtRFloat, sizeof(float), \
	 RES_OFFSET(offset), XtRString, DECONST(char,dftvalue)}

#define Sres(name, class, offset, dftvalue) \
	{RES_NAME(name), RES_CLASS(class), XtRString, sizeof(char *), \
	 RES_OFFSET(offset), XtRString, DECONST(char,dftvalue)}

#define Wres(name, class, offset, dftvalue) \
	{RES_NAME(name), RES_CLASS(class), XtRWidget, sizeof(Widget), \
	 RES_OFFSET(offset), XtRWidget, (XtPointer) dftvalue}

/***====================================================================***/

#define FRG_SIZE resource.minBufSize
#define BUF_SIZE resource.maxBufSize

typedef struct {
	Char    *next;
	Char    *last;
	int      update;	/* HandleInterpret */
#if OPT_WIDE_CHARS
	IChar    utf_data;	/* resulting character */
	int      utf_size;	/* ...number of bytes decoded */
	Char    *write_buf;
	unsigned write_len;
#endif
	Char     buffer[1];
} PtyData;

/***====================================================================***/

#if OPT_ISO_COLORS
#if OPT_256_COLORS || OPT_88_COLORS
#define COLOR_BITS 8
typedef unsigned short CellColor;
#else
#define COLOR_BITS 4
typedef Char CellColor;
#endif
#else
typedef unsigned CellColor;
#endif

#define BITS2MASK(b)          ((1 << b) - 1)

#define COLOR_MASK            BITS2MASK(COLOR_BITS)

#define GetCellColorFG(src)   ((src) & COLOR_MASK)
#define GetCellColorBG(src)   (((src) >> COLOR_BITS) & COLOR_MASK)

typedef Char RowData;		/* wrap/blink, and DEC single-double chars */

#define LINEFLAG_BITS         4
#define LINEFLAG_MASK         BITS2MASK(LINEFLAG_BITS)

#define GetLineFlags(ld)      ((ld)->bufHead & LINEFLAG_MASK)

#if OPT_DEC_CHRSET
#define SetLineFlags(ld,xx)   (ld)->bufHead = (RowData) ((ld->bufHead & (DBLCS_MASK << LINEFLAG_BITS)) | (xx & LINEFLAG_MASK))
#else
#define SetLineFlags(ld,xx)   (ld)->bufHead = (RowData) (xx & LINEFLAG_MASK)
#endif

typedef IChar CharData;

/*
 * This is the xterm line-data/scrollback structure.
 */
typedef struct {
	Dimension lineSize;	/* number of columns in this row */
	RowData bufHead;	/* flag for wrapped lines */
#if OPT_WIDE_CHARS
	Char combSize;		/* number of items in combData[] */
#endif
	IAttr *attribs;		/* video attributes */
#if OPT_ISO_COLORS
	CellColor *color;	/* foreground+background color numbers */
#endif
	CharData *charData;	/* cell's base character */
	CharData *combData[1];	/* first enum past fixed-offsets */
} LineData;

typedef const LineData CLineData;

/*
 * We use CellData in a few places, when copying a cell's data to a temporary
 * variable.
 */
typedef struct {
	IAttr attribs;
#if OPT_WIDE_CHARS
	Char combSize;		/* number of items in combData[] */
#endif
#if OPT_ISO_COLORS
	CellColor color;	/* color-array */
#endif
	CharData charData;	/* cell's base character */
	CharData combData[1];	/* array of combining chars */
} CellData;

#define for_each_combData(off, ld) for (off = 0; off < ld->combSize; ++off)

/*
 * Accommodate older compilers by not using variable-length arrays.
 */
#define SizeOfLineData  offsetof(LineData, combData)
#define SizeOfCellData  offsetof(CellData, combData)

	/*
	 * A "row" is the index within the visible part of the screen, and an
	 * "inx" is the index within the whole set of scrollable lines.
	 */
#define ROW2INX(screen, row)	((row) + (screen)->topline)
#define INX2ROW(screen, inx)	((inx) - (screen)->topline)

/* these are unused but could be useful for debugging */
#if 0
#define ROW2ABS(screen, row)	((row) + (screen)->savedlines)
#define INX2ABS(screen, inx)	ROW2ABS(screen, INX2ROW(screen, inx))
#endif

#define okScrnRow(screen, row) \
	((row) <= ((screen)->max_row - (screen)->topline) \
      && (row) >= -((screen)->savedlines))

	/*
	 * Cache data for "proportional" and other fonts containing a mixture
	 * of widths.
	 */
typedef struct {
	Bool		mixed;
	Dimension	min_width;	/* nominal cell width for 0..255 */
	Dimension	max_width;	/* maximum cell width */
} FontMap;

#define KNOWN_MISSING	256

typedef enum {
	fwNever = 0,
	fwResource,
	fwAlways
} fontWarningTypes;

typedef struct {
	unsigned	chrset;
	unsigned	flags;
	fontWarningTypes warn;
	XFontStruct *	fs;
	char *		fn;
	FontMap		map;
	Char		known_missing[KNOWN_MISSING];
} XTermFonts;

#if OPT_RENDERFONT
typedef enum {
	erFalse = 0
	, erTrue
	, erDefault
	, erLast
} RenderFont;

#define DefaultRenderFont(xw) \
	if ((xw)->work.render_font == erDefault) \
	    (xw)->work.render_font = erFalse

typedef struct {
	XftFont *	font;
	FontMap		map;
} XTermXftFonts;
#endif

typedef struct {
	int		top;
	int		left;
	int		bottom;
	int		right;
} XTermRect;

	/* indices into save_modes[] */
typedef enum {
	DP_ALTERNATE_SCROLL,
	DP_ALT_SENDS_ESC,
	DP_BELL_IS_URGENT,
	DP_CRS_VISIBLE,
	DP_DECANM,
	DP_DECARM,
	DP_DECAWM,
	DP_DECBKM,
	DP_DECCKM,
	DP_DECCOLM,	/* IN132COLUMNS */
	DP_DECKPAM,
	DP_DECNRCM,
	DP_DECOM,
	DP_DECPEX,
	DP_DECPFF,
	DP_DECSCLM,
	DP_DECSCNM,
	DP_DECTCEM,
	DP_DELETE_IS_DEL,
	DP_EIGHT_BIT_META,
	DP_KEEP_CLIPBOARD,
	DP_KEEP_SELECTION,
	DP_KEYBOARD_TYPE,
	DP_POP_ON_BELL,
	DP_PRN_EXTENT,
	DP_PRN_FORMFEED,
	DP_RXVT_SCROLLBAR,
	DP_RXVT_SCROLL_TTY_KEYPRESS,
	DP_RXVT_SCROLL_TTY_OUTPUT,
	DP_SELECT_TO_CLIPBOARD,
	DP_X_ALTSCRN,
	DP_X_DECCOLM,
	DP_X_EXT_MOUSE,
	DP_X_LOGGING,
	DP_X_LRMM,
	DP_X_MARGIN,
	DP_X_MORE,
	DP_X_MOUSE,
	DP_X_NCSM,
	DP_X_REVWRAP,
	DP_X_X10MSE,
#if OPT_BLINK_CURS
	DP_CRS_BLINK,
#endif
#if OPT_FOCUS_EVENT
	DP_X_FOCUS,
#endif
#if OPT_NUM_LOCK
	DP_REAL_NUMLOCK,
	DP_META_SENDS_ESC,
#endif
#if OPT_SHIFT_FONTS
	DP_RXVT_FONTSIZE,
#endif
#if OPT_SIXEL_GRAPHICS
	DP_DECSDM,
#endif
#if OPT_TEK4014
	DP_DECTEK,
#endif
#if OPT_TOOLBAR
	DP_TOOLBAR,
#endif
	DP_X_PRIVATE_COLOR_REGISTERS,
#if OPT_SIXEL_GRAPHICS
	DP_SIXEL_SCROLLS_RIGHT,
#endif
	DP_LAST
} SaveModes;

#define DoSM(code,value)  screen->save_modes[code] = (unsigned) (value)
#define DoRM(code,value)  value = (Boolean) screen->save_modes[code]
#define DoRM0(code,value) value = screen->save_modes[code]

	/* index into vt_shell[] or tek_shell[] */
typedef enum {
	noMenu = -1
	,mainMenu
	,vtMenu
	,fontMenu
#if OPT_TEK4014
	,tekMenu
#endif
} MenuIndex;

typedef enum {
	bvOff = -1,
	bvLow = 0,
	bvHigh
} BellVolume;

#define NUM_POPUP_MENUS 4

#if OPT_COLOR_RES
typedef struct {
	String		resource;
	Pixel		value;
	unsigned short red, green, blue;
	int		mode;		/* -1=invalid, 0=unset, 1=set   */
} ColorRes;
#else
#define ColorRes Pixel
#endif

/* these are set in getPrinterFlags */
typedef struct {
	int	printer_extent;		/* print complete page		*/
	int	printer_formfeed;	/* print formfeed per function	*/
	int	printer_newline;	/* print newline per function	*/
	int	print_attributes;	/* 0=off, 1=normal, 2=color	*/
	int	print_everything;	/* 0=all, 1=dft, 2=alt, 3=saved */
} PrinterFlags;

typedef struct {
	FILE *	fp;			/* output file/pipe used	*/
	Boolean isOpen;			/* output was opened/tried	*/
	Boolean toFile;			/* true when directly to file	*/
	Boolean printer_checked;	/* printer_command is checked	*/
	String	printer_command;	/* pipe/shell command string	*/
	Boolean printer_autoclose;	/* close printer when offline	*/
	Boolean printer_extent;		/* print complete page		*/
	Boolean printer_formfeed;	/* print formfeed per function	*/
	Boolean printer_newline;	/* print newline per function	*/
	int	printer_controlmode;	/* 0=off, 1=auto, 2=controller	*/
	int	print_attributes;	/* 0=off, 1=normal, 2=color	*/
	int	print_everything;	/* 0=all, 1=dft, 2=alt, 3=saved */
} PrinterState;

typedef struct {
	unsigned	which;		/* must have NCOLORS bits */
	Pixel		colors[NCOLORS];
	char		*names[NCOLORS];
} ScrnColors;

typedef struct {
	Boolean		saved;
	int		row;
	int		col;
	IFlags		flags;		/* VTxxx saves graphics rendition */
	Char		curgl;
	Char		curgr;
	int		gsets[4];
	Boolean		wrap_flag;
#if OPT_ISO_COLORS
	int		cur_foreground; /* current foreground color	*/
	int		cur_background; /* current background color	*/
	int		sgr_foreground; /* current SGR foreground color */
	int		sgr_background; /* current SGR background color */
	Boolean		sgr_extended;	/* SGR set with extended codes? */
#endif
} SavedCursor;

typedef struct _SaveTitle {
	struct _SaveTitle *next;
	char		*iconName;
	char		*windowName;
} SaveTitle;

#define SAVED_CURSORS 2

typedef struct {
	int		width;		/* if > 0, width of scrollbar,	*/
					/* and scrollbar is showing	*/
	Boolean		rv_cached;	/* see ScrollBarReverseVideo	*/
	int		rv_active;	/* ...current reverse-video	*/
	Pixel		bg;		/* ...cached background color	*/
	Pixel		fg;		/* ...cached foreground color	*/
	Pixel		bdr;		/* ...cached border color	*/
	Pixmap		bdpix;		/* ...cached border pixmap	*/
} SbInfo;

#if OPT_TOOLBAR
typedef struct {
	Widget		menu_bar;	/* toolbar, if initialized	*/
	Dimension	menu_height;	/* ...and its height		*/
	Dimension	menu_border;	/* ...and its border		*/
} TbInfo;
#define VT100_TB_INFO(name) screen.fullVwin.tb_info.name
#endif

typedef struct {
	Window		window;		/* X window id			*/
	int		width;		/* width of columns		*/
	int		height;		/* height of rows		*/
	Dimension	fullwidth;	/* full width of window		*/
	Dimension	fullheight;	/* full height of window	*/
	int		f_width;	/* width of fonts in pixels	*/
	int		f_height;	/* height of fonts in pixels	*/
	int		f_ascent;	/* ascent of font in pixels	*/
	int		f_descent;	/* descent of font in pixels	*/
	SbInfo		sb_info;
#if OPT_DOUBLE_BUFFER
	Drawable	drawable;	/* X drawable id                */
#endif
#if OPT_TOOLBAR
	Boolean		active;		/* true if toolbars are used	*/
	TbInfo		tb_info;	/* toolbar information		*/
#endif
} VTwin;

typedef struct {
	Window		window;		/* X window id			*/
	int		width;		/* width of columns		*/
	int		height;		/* height of rows		*/
	Dimension	fullwidth;	/* full width of window		*/
	Dimension	fullheight;	/* full height of window	*/
	double		tekscale;	/* scale factor Tek -> vs100	*/
} TKwin;

typedef struct {
    char *f_n;			/* the normal font */
    char *f_b;			/* the bold font */
#if OPT_WIDE_ATTRS
    char *f_i;			/* italic font (Xft only) */
#endif
#if OPT_WIDE_CHARS
    char *f_w;			/* the normal wide font */
    char *f_wb;			/* the bold wide font */
    char *f_wi;			/* wide italic font (Xft only) */
#endif
} VTFontNames;

typedef struct {
    char **list_n;		/* the normal font */
    char **list_b;		/* the bold font */
#if OPT_WIDE_ATTRS || OPT_RENDERWIDE
    char **list_i;		/* italic font (Xft only) */
#endif
#if OPT_WIDE_CHARS
    char **list_w;		/* the normal wide font */
    char **list_wb;		/* the bold wide font */
    char **list_wi;		/* wide italic font (Xft only) */
#endif
} VTFontList;

typedef struct {
    VTFontList x11;
#if OPT_RENDERFONT
    VTFontList xft;
#endif
} XtermFontNames;

typedef struct {
    VTFontNames default_font;
    String menu_font_names[NMENUFONTS][fMAX];
    XtermFontNames fonts;
} SubResourceRec;

#if OPT_INPUT_METHOD
#define NINPUTWIDGETS	3
typedef struct {
	Widget		w;
	XIM		xim;		/* input method attached to 'w' */
	XIC		xic;		/* input context attached to 'xim' */
} TInput;
#endif

typedef enum {
	CURSOR_BLOCK = 2
	, CURSOR_UNDERLINE = 4
	, CURSOR_BAR = 6
} XtCursorShape;

#define isCursorBlock(s)	((s)->cursor_shape == CURSOR_BLOCK)
#define isCursorUnderline(s)	((s)->cursor_shape == CURSOR_UNDERLINE)
#define isCursorBar(s)		((s)->cursor_shape == CURSOR_BAR)

typedef enum {
	DEFAULT_STYLE = 0
	, BLINK_BLOCK
	, STEADY_BLOCK
	, BLINK_UNDERLINE
	, STEADY_UNDERLINE
	, BLINK_BAR
	, STEADY_BAR
} XtCursorStyle;

typedef struct {
/* These parameters apply to both windows */
	Display		*display;	/* X display for screen		*/
	int		respond;	/* socket for responses
					   (position report, etc.)	*/
/* These parameters apply to VT100 window */
	IChar		unparse_bfr[256];
	unsigned	unparse_len;

#if OPT_TCAP_QUERY
	int		tc_query_code;
	Bool		tc_query_fkey;
#endif
	pid_t		pid;		/* pid of process on far side   */
	uid_t		uid;		/* user id of actual person	*/
	gid_t		gid;		/* group id of actual person	*/
	ColorRes	Tcolors[NCOLORS]; /* terminal colors		*/
#if OPT_HIGHLIGHT_COLOR
	Boolean		hilite_color;	/* hilite colors override	*/
	Boolean		hilite_reverse;	/* hilite overrides reverse	*/
#endif
#if OPT_ISO_COLORS
	XColor *	cmap_data;	/* color table			*/
	unsigned	cmap_size;
	ColorRes	Acolors[MAXCOLORS]; /* ANSI color emulation	*/
	int		veryBoldColors;	/* modifier for boldColors	*/
	Boolean		boldColors;	/* can we make bold colors?	*/
	Boolean		colorMode;	/* are we using color mode?	*/
	Boolean		colorULMode;	/* use color for underline?	*/
	Boolean		italicULMode;	/* italic font for underline?	*/
	Boolean		colorBDMode;	/* use color for bold?		*/
	Boolean		colorBLMode;	/* use color for blink?		*/
	Boolean		colorRVMode;	/* use color for reverse?	*/
	Boolean		colorAttrMode;	/* prefer colorUL/BD to SGR	*/
#if OPT_WIDE_ATTRS
	Boolean		colorITMode;	/* use color for italics?	*/
#endif
#endif
#if OPT_DEC_CHRSET
	Boolean		font_doublesize;/* enable font-scaling		*/
	int		cache_doublesize;/* limit of our cache		*/
	Char		cur_chrset;	/* character-set index & code	*/
	int		fonts_used;	/* count items in double_fonts	*/
	XTermFonts	double_fonts[NUM_CHRSET];
#endif
#if OPT_DEC_RECTOPS
	int		cur_decsace;	/* parameter for DECSACE	*/
#endif
#if OPT_WIDE_CHARS
	Boolean		wide_chars;	/* true when 16-bit chars	*/
	Boolean		vt100_graphics;	/* true to allow vt100-graphics	*/
	Boolean		utf8_inparse;	/* true to enable UTF-8 parser	*/
	Boolean		normalized_c;	/* true to precompose to Form C */
	char *		utf8_mode_s;	/* use UTF-8 decode/encode	*/
	char *		utf8_fonts_s;	/* use UTF-8 decode/encode	*/
	int		utf8_nrc_mode;	/* saved UTF-8 mode for DECNRCM */
	Boolean		utf8_always;	/* special case for wideChars	*/
	int		utf8_mode;	/* use UTF-8 decode/encode: 0-2	*/
	int		utf8_fonts;	/* use UTF-8 decode/encode: 0-2	*/
	int		max_combining;	/* maximum # of combining chars	*/
	Boolean		utf8_latin1;	/* use UTF-8 with Latin-1 bias	*/
	Boolean		utf8_title;	/* use UTF-8 titles		*/
	int		latin9_mode;	/* poor man's luit, latin9	*/
	int		unicode_font;	/* font uses unicode encoding	*/
	int		utf_count;	/* state of utf_char		*/
	IChar		utf_char;	/* in-progress character	*/
	Boolean		char_was_written;
	int		last_written_col;
	int		last_written_row;
	TypedBuffer(XChar2b);
	TypedBuffer(char);
#endif
#if OPT_BROKEN_OSC
	Boolean		brokenLinuxOSC; /* true to ignore Linux palette ctls */
#endif
#if OPT_BROKEN_ST
	Boolean		brokenStringTerm; /* true to match old OSC parse */
#endif
#if OPT_C1_PRINT || OPT_WIDE_CHARS
	Boolean		c1_printable;	/* true if we treat C1 as print	*/
#endif
	int		border;		/* inner border			*/
	int		scrollBarBorder; /* scrollBar border		*/
	long		event_mask;
	unsigned	send_mouse_pos;	/* user wants mouse transition  */
					/* and position information	*/
	int		extend_coords;	/* support large terminals	*/
#if OPT_FOCUS_EVENT
	Boolean		send_focus_pos; /* user wants focus in/out info */
#endif
	Boolean		quiet_grab;	/* true if no cursor change on focus */
#if OPT_PASTE64
	Cardinal	base64_paste;	/* set to send paste in base64	*/
	int		base64_final;	/* string-terminator for paste	*/
	/* _qWriteSelectionData expects these to be initialized to zero.
	 * base64_flush() is the last step of the conversion, it clears these
	 * variables.
	 */
	unsigned	base64_accu;
	unsigned	base64_count;
	unsigned	base64_pad;
#endif
#if OPT_READLINE
	unsigned	click1_moves;
	unsigned	paste_moves;
	unsigned	dclick3_deletes;
	unsigned	paste_brackets;
	unsigned	paste_quotes;
	unsigned	paste_literal_nl;
#endif	/* OPT_READLINE */
#if OPT_DEC_LOCATOR
	Boolean		locator_reset;	/* turn mouse off after 1 report? */
	Boolean		locator_pixels;	/* report in pixels?		*/
					/* if false, report in cells	*/
	unsigned	locator_events;	/* what events to report	*/
	Boolean		loc_filter;	/* is filter rectangle active?	*/
	int		loc_filter_top;	/* filter rectangle for DEC Locator */
	int		loc_filter_left;
	int		loc_filter_bottom;
	int		loc_filter_right;
#endif	/* OPT_DEC_LOCATOR */
	int		mouse_button;	/* current button pressed	*/
	int		mouse_row;	/* ...and its row		*/
	int		mouse_col;	/* ...and its column		*/
	int		select;		/* xterm selected		*/
	Boolean		bellOnReset;	/* bellOnReset			*/
	Boolean		visualbell;	/* visual bell mode		*/
	Boolean		poponbell;	/* pop on bell mode		*/

	Boolean		eraseSavedLines; /* eraseSavedLines option	*/
	Boolean		eraseSavedLines0; /* initial eraseSavedLines	*/
	Boolean		tabCancelsWrap; /* tabCancelsWrap option	*/

	Boolean		allowPasteControls; /* PasteControls mode	*/
	Boolean		allowColorOps;	/* ColorOps mode		*/
	Boolean		allowFontOps;	/* FontOps mode			*/
	Boolean		allowMouseOps;	/* MouseOps mode		*/
	Boolean		allowSendEvents;/* SendEvent mode		*/
	Boolean		allowTcapOps;	/* TcapOps mode			*/
	Boolean		allowTitleOps;	/* TitleOps mode		*/
	Boolean		allowWindowOps;	/* WindowOps mode		*/

	Boolean		allowPasteControl0; /* PasteControls mode	*/
	Boolean		allowColorOp0;	/* initial ColorOps mode	*/
	Boolean		allowFontOp0;	/* initial FontOps mode		*/
	Boolean		allowMouseOp0;	/* initial MouseOps mode	*/
	Boolean		allowSendEvent0;/* initial SendEvent mode	*/
	Boolean		allowTcapOp0;	/* initial TcapOps mode		*/
	Boolean		allowTitleOp0;	/* initial TitleOps mode	*/
	Boolean		allowWindowOp0;	/* initial WindowOps mode	*/

	String		disallowedColorOps;
	char		disallow_color_ops[ecLAST];

	String		disallowedFontOps;
	char		disallow_font_ops[efLAST];

	String		disallowedMouseOps;
	char		disallow_mouse_ops[emLAST];

	String		disallowedTcapOps;
	char		disallow_tcap_ops[etLAST];

	String		disallowedWinOps;
	char		disallow_win_ops[ewLAST];

	Boolean		awaitInput;	/* select-timeout mode		*/
	Boolean		grabbedKbd;	/* keyboard is grabbed		*/
#ifdef ALLOWLOGGING
	int		logging;	/* logging mode			*/
	int		logfd;		/* file descriptor of log	*/
	char		*logfile;	/* log file name		*/
	Char		*logstart;	/* current start of log buffer	*/
#endif
	int		inhibit;	/* flags for inhibiting changes	*/

/* VT window parameters */
	Boolean		Vshow;		/* VT window showing		*/
	VTwin		fullVwin;
	int		needSwap;
#ifndef NO_ACTIVE_ICON
	VTwin		iconVwin;
	VTwin		*whichVwin;
#endif /* NO_ACTIVE_ICON */

	int		pointer_mode;	/* when to use hidden_cursor	*/
	int		pointer_mode0;	/* ...initial value             */
	Boolean 	hide_pointer;	/* true to use "hidden_cursor"  */
	Cursor		pointer_cursor;	/* pointer cursor in window	*/
	Cursor		hidden_cursor;	/* hidden cursor in window	*/

	String	answer_back;		/* response to ENQ		*/

	PrinterState	printer_state;	/* actual printer state		*/
	PrinterFlags	printer_flags;	/* working copy of printer flags */
#if OPT_PRINT_ON_EXIT
	Boolean		write_error;
#endif

	Boolean		fnt_prop;	/* true if proportional fonts	*/
	Boolean		fnt_boxes;	/* true if font has box-chars	*/
	Boolean		force_packed;	/* true to override proportional */
#if OPT_BOX_CHARS
	Boolean		force_box_chars;/* true if we assume no boxchars */
	Boolean		force_all_chars;/* true to outline missing chars */
	Boolean		assume_all_chars;/* true to allow missing chars */
	Boolean		allow_packing;	/* true to allow packed-fonts	*/
#endif
	Dimension	fnt_wide;
	Dimension	fnt_high;
	float		scale_height;	/* scaling for font-height	*/
	XTermFonts	fnts[fMAX];	/* normal/bold/etc for terminal	*/
	Boolean		free_bold_box;	/* same_font_size's austerity	*/
	Boolean		allowBoldFonts;	/* do we use bold fonts at all? */
#if OPT_WIDE_ATTRS
	XTermFonts	ifnts[fMAX];	/* normal/bold/etc italic fonts */
	Boolean		ifnts_ok;	/* true if ifnts[] is cached	*/
#endif
#ifndef NO_ACTIVE_ICON
	XTermFonts	fnt_icon;	/* icon font			*/
	String		icon_fontname;	/* name of icon font		*/
	int		icon_fontnum;	/* number to use for icon font	*/
#endif /* NO_ACTIVE_ICON */
	int		enbolden;	/* overstrike for bold font	*/
	XPoint		*box;		/* draw unselected cursor	*/

	int		cursor_state;	/* ON, OFF, or BLINKED_OFF	*/
	int		cursor_busy;	/* do not redraw...		*/
	Boolean		cursor_underline; /* true if cursor is in underline mode */
	XtCursorShape	cursor_shape;
#if OPT_BLINK_CURS
	Boolean		cursor_blink;	/* cursor blink enable		*/
	Boolean		cursor_blink_res; /* initial cursor blink value	*/
	Boolean		cursor_blink_esc; /* cursor blink escape-state	*/
#endif
#if OPT_BLINK_TEXT
	Boolean		blink_as_bold;	/* text blink disable		*/
#endif
#if OPT_BLINK_CURS || OPT_BLINK_TEXT
	int		blink_state;	/* ON, OFF, or BLINKED_OFF	*/
	int		blink_on;	/* cursor on time (msecs)	*/
	int		blink_off;	/* cursor off time (msecs)	*/
	XtIntervalId	blink_timer;	/* timer-id for cursor-proc	*/
#endif
#if OPT_ZICONBEEP
	Boolean		zIconBeep_flagged; /* True if icon name was changed */
#endif /* OPT_ZICONBEEP */
	int		cursor_GC;	/* see ShowCursor()		*/
	int		cursor_set;	/* requested state		*/
	CELL		cursorp;	/* previous cursor row/column	*/
	int		cur_col;	/* current cursor column	*/
	int		cur_row;	/* current cursor row		*/
	int		max_col;	/* rightmost column		*/
	int		max_row;	/* bottom row			*/
	int		top_marg;	/* top line of scrolling region */
	int		bot_marg;	/* bottom line of  "	    "	*/
	int		lft_marg;	/* left column of "	    "	*/
	int		rgt_marg;	/* right column of "	    "	*/
	Widget		scrollWidget;	/* pointer to scrollbar struct	*/
	/*
	 * Indices used to keep track of the top of the vt100 window and
	 * the saved lines, taking scrolling into account.
	 */
	int		topline;	/* line number of top, <= 0	*/
	long		saved_fifo;     /* number of lines that've ever been saved */
	int		savedlines;     /* number of lines that've been saved */
	int		savelines;	/* number of lines off top to save */
	int		scroll_amt;	/* amount to scroll		*/
	int		refresh_amt;	/* amount to refresh		*/
	/*
	 * Working variables for getLineData().
	 */
	size_t		lineExtra;	/* extra space for combining chars */
	/*
	 * Pointer to the current visible buffer.
	 */
	ScrnBuf		visbuf;		/* ptr to visible screen buf (main) */
	/*
	 * Data for the normal buffer, which may have saved lines to which
	 * the user can scroll.
	 */
	ScrnBuf		saveBuf_index;
	Char		*saveBuf_data;
	/*
	 * Data for visible and alternate buffer.
	 */
	ScrnBuf		editBuf_index[2];
	Char		*editBuf_data[2];
	int		whichBuf;	/* 0/1 for normal/alternate buf */
	Boolean		is_running;	/* true when buffers are legal	*/
	/*
	 * Workspace used for screen operations.
	 */
	Char		**save_ptr;	/* workspace for save-pointers  */
	size_t		save_len;	/* ...and its length		*/

	int		scrolllines;	/* number of lines to button scroll */
	Boolean		alternateScroll; /* scroll-actions become keys */
	Boolean		scrollttyoutput; /* scroll to bottom on tty output */
	Boolean		scrollkey;	/* scroll to bottom on key	*/
	Boolean		cursor_moved;	/* scrolling makes cursor move	*/

	Boolean		do_wrap;	/* true if cursor in last column
					    and character just output    */

	int		incopy;		/* 0 idle; 1 XCopyArea issued;
					    -1 first GraphicsExpose seen,
					    but last not seen		*/
	int		copy_src_x;	/* params from last XCopyArea ... */
	int		copy_src_y;
	unsigned int	copy_width;
	unsigned int	copy_height;
	int		copy_dest_x;
	int		copy_dest_y;

	Dimension	embed_wide;
	Dimension	embed_high;

	Boolean		c132;		/* allow change to 132 columns	*/
	Boolean		curses;		/* kludge line wrap for more	*/
	Boolean		hp_ll_bc;	/* kludge HP-style ll for xdb	*/
	Boolean		marginbell;	/* true if margin bell on	*/
	int		nmarginbell;	/* columns from right margin	*/
	int		bellArmed;	/* cursor below bell margin	*/
	BellVolume	marginVolume;	/* margin-bell volume           */
	BellVolume	warningVolume;	/* warning-bell volume          */
	Boolean		multiscroll;	/* true if multi-scroll		*/
	int		scrolls;	/* outstanding scroll count,
					    used only with multiscroll	*/
	SavedCursor	sc[SAVED_CURSORS]; /* data for restore cursor	*/
	IFlags		save_modes[DP_LAST]; /* save dec/xterm private modes */

	int		title_modes;	/* control set/get of titles	*/
	int		title_modes0;	/* ...initial value         	*/
	SaveTitle	*save_title;

	/* Improved VT100 emulation stuff.				*/
	String		keyboard_dialect; /* default keyboard dialect	*/
	int		gsets[4];	/* G0 through G3.		*/
	Char		curgl;		/* Current GL setting.		*/
	Char		curgr;		/* Current GR setting.		*/
	Char		curss;		/* Current single shift.	*/
	String		term_id;	/* resource for terminal_id	*/
	int		terminal_id;	/* 100=vt100, 220=vt220, etc.	*/
	int		vtXX_level;	/* 0=vt52, 1,2,3 = vt100 ... vt320 */
	int		ansi_level;	/* dpANSI levels 1,2,3		*/
	int		protected_mode;	/* 0=off, 1=DEC, 2=ISO		*/
	Boolean		always_bold_mode; /* compare normal/bold font	*/
	Boolean		always_highlight; /* whether to highlight cursor */
	Boolean		bold_mode;	/* use bold font or overstrike	*/
	Boolean		delete_is_del;	/* true for compatible Delete key */
	Boolean		jumpscroll;	/* whether we should jumpscroll */
	Boolean		fastscroll;	/* whether we should fastscroll */
	Boolean		old_fkeys;	/* true for compatible fkeys	*/
	Boolean		old_fkeys0;	/* ...initial value         	*/
	Boolean		underline;	/* whether to underline text	*/

#if OPT_MAXIMIZE
	Boolean		restore_data;
	int		restore_x;
	int		restore_y;
	unsigned	restore_width;
	unsigned	restore_height;
#endif

#if OPT_REGIS_GRAPHICS
	String		graphics_regis_default_font; /* font for "builtin" */

	String		graphics_regis_screensize; /* given a size in pixels */
	Dimension	graphics_regis_def_wide; /* ...corresponding width   */
	Dimension	graphics_regis_def_high; /* ...and height            */
#endif

#if OPT_GRAPHICS
	String		graphics_max_size;	/* given a size in pixels */
	Dimension	graphics_max_wide;	/* ...corresponding width */
	Dimension	graphics_max_high;	/* ...and height          */
#endif

#if OPT_SCROLL_LOCK
	Boolean		allowScrollLock;/* ScrollLock mode		*/
	Boolean		allowScrollLock0;/* initial ScrollLock mode	*/
	Boolean		scroll_lock;	/* true to keep buffer in view	*/
	Boolean		scroll_dirty;	/* scrolling makes screen dirty	*/
#endif

#if OPT_SIXEL_GRAPHICS
	Boolean		sixel_scrolling; /* sixel scrolling             */
	Boolean		sixel_scrolls_right; /* sixel scrolling moves cursor to right */
#endif

#if OPT_GRAPHICS
	int		numcolorregisters; /* number of supported color registers */
	Boolean		privatecolorregisters; /* private color registers for each graphic */
#endif

#if OPT_VT52_MODE
	Char		vt52_save_curgl;
	Char		vt52_save_curgr;
	Char		vt52_save_curss;
	int		vt52_save_gsets[4];
#endif
	/* Testing */
#if OPT_XMC_GLITCH
	unsigned	xmc_glitch;	/* # of spaces to pad on SGR's	*/
	IAttr		xmc_attributes;	/* attrs that make a glitch	*/
	Boolean		xmc_inline;	/* SGR's propagate only to eol	*/
	Boolean		move_sgr_ok;	/* SGR is reset on move		*/
#endif

	/*
	 * Bell
	 */
	int		visualBellDelay; /* msecs to delay for visibleBell */
	int		bellSuppressTime; /* msecs after Bell before another allowed */
	Boolean		bellInProgress; /* still ringing/flashing prev bell? */
	Boolean		bellIsUrgent;	/* set XUrgency WM hint on bell */
	Boolean		flash_line;	/* show visualBell as current line */
	/*
	 * Select/paste state.
	 */
	Boolean		selectToClipboard; /* primary vs clipboard */
	String		*mappedSelect;	/* mapping for "SELECT" to "PRIMARY" */

	Boolean		waitingForTrackInfo;
	int		numberOfClicks;
	int		maxClicks;
	int		multiClickTime;	/* time between multiclick selects */
	SelectUnit	selectUnit;
	SelectUnit	selectMap[NSELECTUNITS];
	String		onClick[NSELECTUNITS + 1];

	char		*charClass;	/* for overriding word selection */
	Boolean		cutNewline;	/* whether or not line cut has \n */
	Boolean		cutToBeginningOfLine;  /* line cuts to BOL? */
	Boolean		highlight_selection; /* controls appearance of selection */
	Boolean		show_wrap_marks; /* show lines which are wrapped */
	Boolean		trim_selection; /* controls trimming of selection */
	Boolean		i18nSelections;
	Boolean		brokenSelections;
	Boolean		keepClipboard;	/* retain data sent to clipboard */
	Boolean		keepSelection;	/* do not lose selection on output */
	Boolean		replyToEmacs;	/* Send emacs escape code when done selecting or extending? */
	Char		*selection_data; /* the current selection */
	int		selection_size; /* size of allocated buffer */
	unsigned long	selection_length; /* number of significant bytes */
	Char		*clipboard_data; /* the current clipboard */
	unsigned long	clipboard_size; /*  size of allocated buffer */
	EventMode	eventMode;
	Time		selection_time;	/* latest event timestamp */
	Time		lastButtonUpTime;
	unsigned	lastButton;

	CELL		rawPos;		/* raw position for selection start */
	CELL		startRaw;	/* area before selectUnit processing */
	CELL		endRaw;		/* " " */
	CELL		startSel;	/* area after selectUnit processing */
	CELL		endSel;		/* " " */
	CELL		startH;		/* start highlighted text */
	CELL		endH;		/* end highlighted text */
	CELL		saveStartW;	/* saved WORD state, for LINE */
	CELL		startExt;	/* Start, end of extension */
	CELL		endExt;		/* " " */
	CELL		saveStartR;	/* Saved values of raw selection for extend to restore to */
	CELL		saveEndR;	/* " " */
	int		startHCoord, endHCoord;
	int		firstValidRow;	/* Valid rows for selection clipping */
	int		lastValidRow;	/* " " */

	Boolean		selectToBuffer;	/* copy selection to buffer	*/
	InternalSelect	internal_select;

	String		default_string;
	String		eightbit_select_types;
	Atom*		selection_targets_8bit;
#if OPT_WIDE_CHARS
	String		utf8_select_types;
	Atom*		selection_targets_utf8;
#endif
	Atom*		selection_atoms; /* which selections we own */
	Cardinal	sel_atoms_size;	 /* how many atoms allocated */
	Cardinal	selection_count; /* how many atoms in use */
#if OPT_SELECT_REGEX
	char *		selectExpr[NSELECTUNITS];
#endif
	/*
	 * Input/output state.
	 */
	Boolean		input_eight_bits;	/* do not send ESC when meta pressed */
	int		eight_bit_meta;		/* use 8th bit when meta pressed */
	char *		eight_bit_meta_s;	/* ...resource eightBitMeta */
	Boolean		output_eight_bits;	/* honor all bits or strip */
	Boolean		control_eight_bits;	/* send CSI as 8-bits */
	Boolean		backarrow_key;		/* backspace/delete */
	Boolean		alt_is_not_meta;	/* use both Alt- and Meta-key */
	Boolean		alt_sends_esc;		/* Alt-key sends ESC prefix */
	Boolean		meta_sends_esc;		/* Meta-key sends ESC prefix */
	/*
	 * Fonts
	 */
	Pixmap		menu_item_bitmap;	/* mask for checking items */
	String		initial_font;
	char *		menu_font_names[NMENUFONTS][fMAX];
#define MenuFontName(n) menu_font_names[n][fNorm]
#define EscapeFontName() MenuFontName(fontMenu_fontescape)
#define SelectFontName() MenuFontName(fontMenu_fontsel)
	long		menu_font_sizes[NMENUFONTS];
	int		menu_font_number;
#if OPT_LOAD_VTFONTS || OPT_WIDE_CHARS
	Boolean		savedVTFonts;
	Boolean		mergedVTFonts;
	SubResourceRec	cacheVTFonts;
#endif
#if OPT_CLIP_BOLD
	Boolean		use_clipping;
#endif
	void *		main_cgs_cache;
#ifndef NO_ACTIVE_ICON
	void *		icon_cgs_cache;
#endif
#if OPT_RENDERFONT
	XTermXftFonts	renderFontNorm[NMENUFONTS];
	XTermXftFonts	renderFontBold[NMENUFONTS];
	XTermXftFonts	renderFontItal[NMENUFONTS];
#if OPT_RENDERWIDE
	XTermXftFonts	renderWideNorm[NMENUFONTS];
	XTermXftFonts	renderWideBold[NMENUFONTS];
	XTermXftFonts	renderWideItal[NMENUFONTS];
	TypedBuffer(XftCharSpec);
#else
	TypedBuffer(XftChar8);
#endif
	XftDraw *	renderDraw;
#endif
#if OPT_DABBREV
	Boolean		dabbrev_working;	/* nonzero during dabbrev process */
	unsigned char	dabbrev_erase_char;	/* used for deleting inserted completion */
#endif
	char		tcapbuf[TERMCAP_SIZE];
	char		tcap_area[TERMCAP_SIZE];
#if OPT_TCAP_FKEYS
	char **		tcap_fkeys;
#endif
} TScreen;

typedef struct _TekPart {
	XFontStruct *	Tfont[TEKNUMFONTS];
	int		tobaseline[TEKNUMFONTS]; /* top-baseline, each font */
	char *		initial_font;		/* large, 2, 3, small */
	char *		gin_terminator_str;	/* ginTerminator resource */
#if OPT_TOOLBAR
	TbInfo		tb_info;	/* toolbar information		*/
#endif
} TekPart;

/* Tektronix window parameters */
typedef struct _TekScreen {
	GC		TnormalGC;	/* normal painting		*/
	GC		TcursorGC;	/* normal cursor painting	*/

	Boolean		waitrefresh;	/* postpone refresh		*/
	TKwin		fullTwin;
#ifndef NO_ACTIVE_ICON
	TKwin		iconTwin;
	TKwin		*whichTwin;
#endif /* NO_ACTIVE_ICON */

	Cursor		arrow;		/* arrow cursor			*/
	GC		linepat[TEKNUMLINES]; /* line patterns		*/
	int		cur_X;		/* current x			*/
	int		cur_Y;		/* current y			*/
	Tmodes		cur;		/* current tek modes		*/
	Tmodes		page;		/* starting tek modes on page	*/
	int		margin;		/* 0 -> margin 1, 1 -> margin 2	*/
	int		pen;		/* current Tektronix pen 0=up, 1=dn */
	char		*TekGIN;	/* nonzero if Tektronix GIN mode*/
	int		gin_terminator; /* Tek strap option */
	char		tcapbuf[TERMCAP_SIZE];
} TekScreen;

#if OPT_READLINE
#define SCREEN_FLAG(screenp,f)		(1&(screenp)->f)
#define SCREEN_FLAG_set(screenp,f)	((screenp)->f |= 1)
#define SCREEN_FLAG_unset(screenp,f)	((screenp)->f &= (unsigned) ~1L)
#define SCREEN_FLAG_save(screenp,f)	\
	((screenp)->f = (((screenp)->f)<<1) | SCREEN_FLAG(screenp,f))
#define SCREEN_FLAG_restore(screenp,f)	((screenp)->f = (((screenp)->f)>>1))
#else
#define SCREEN_FLAG(screenp,f)		(0)
#endif

/*
 * After screen-updates, reset the flag that tells us we should do wrapping.
 * Likewise, reset (in wide-character mode) the flag that tells us where the
 * "previous" character was written.
 */
#if OPT_WIDE_CHARS
#define ResetWrap(screen) \
    (screen)->do_wrap = \
    (screen)->char_was_written = False
#else
#define ResetWrap(screen) \
    (screen)->do_wrap = False
#endif

/* meaning of bits in screen.select flag */
#define	INWINDOW	01	/* the mouse is in one of the windows */
#define	FOCUS		02	/* one of the windows is the focus window */

#define MULTICLICKTIME 250	/* milliseconds */

typedef struct {
    const char *name;
    int code;
} FlagList;

typedef enum {
    keyboardIsLegacy,		/* bogus vt220 codes for F1-F4, etc. */
    keyboardIsDefault,
    keyboardIsHP,
    keyboardIsSCO,
    keyboardIsSun,
    keyboardIsTermcap,
    keyboardIsVT220
} xtermKeyboardType;

typedef enum {			/* legal values for screen.pointer_mode */
    pNever = 0
    , pNoMouse = 1
    , pAlways = 2
    , pFocused = 3
} pointerModeTypes;

typedef enum {			/* legal values for screen.utf8_mode */
    uFalse = 0
    , uTrue = 1
    , uAlways = 2
    , uDefault = 3
    , uLast
} utf8ModeTypes;

typedef enum {			/* legal values for screen.eight_bit_meta */
    ebFalse = 0
    , ebTrue = 1
    , ebNever = 2
    , ebLocale = 3
    , ebLast
} ebMetaModeTypes;

#define NAME_OLD_KT " legacy"

#if OPT_HP_FUNC_KEYS
#define NAME_HP_KT " hp"
#else
#define NAME_HP_KT /*nothing*/
#endif

#if OPT_SCO_FUNC_KEYS
#define NAME_SCO_KT " sco"
#else
#define NAME_SCO_KT /*nothing*/
#endif

#if OPT_SUN_FUNC_KEYS
#define NAME_SUN_KT " sun"
#else
#define NAME_SUN_KT /*nothing*/
#endif

#if OPT_SUNPC_KBD
#define NAME_VT220_KT " vt220"
#else
#define NAME_VT220_KT /*nothing*/
#endif

#if OPT_TCAP_FKEYS
#define NAME_TCAP_KT " tcap"
#else
#define NAME_TCAP_KT /*nothing*/
#endif

#define KEYBOARD_TYPES NAME_TCAP_KT NAME_HP_KT NAME_SCO_KT NAME_SUN_KT NAME_VT220_KT

#if OPT_TRACE
#define TRACE_RC(code,func) code = func
#else
#define TRACE_RC(code,func) func
#endif

extern	const char * visibleKeyboardType(xtermKeyboardType);

typedef struct
{
    int allow_keys;		/* how to handle legacy/vt220 keyboard */
    int cursor_keys;		/* how to handle cursor-key modifiers */
    int function_keys;		/* how to handle function-key modifiers */
    int keypad_keys;		/* how to handle keypad key-modifiers */
    int other_keys;		/* how to handle other key-modifiers */
    int string_keys;		/* how to handle string() modifiers */
} TModify;

typedef struct
{
    xtermKeyboardType type;
    IFlags flags;
    char *shell_translations;
    char *xterm_translations;
    char *extra_translations;
#if OPT_INITIAL_ERASE
    int	reset_DECBKM;		/* reset should set DECBKM */
#endif
#if OPT_MOD_FKEYS
    TModify modify_now;		/* current modifier value */
    TModify modify_1st;		/* original modifier value, for resets */
    int format_keys;		/* format of modifyOtherKeys */
#endif
} TKeyboard;

#define GravityIsNorthWest(w) ((w)->misc.resizeGravity == NorthWestGravity)
#define GravityIsSouthWest(w) ((w)->misc.resizeGravity == SouthWestGravity)

typedef struct _Misc {
    VTFontNames default_font;
    char *geo_metry;
    char *T_geometry;
#if OPT_WIDE_CHARS
    Boolean cjk_width;		/* true for built-in CJK wcwidth() */
    Boolean mk_width;		/* true for simpler built-in wcwidth() */
    int mk_samplesize;
    int mk_samplepass;
#endif
#if OPT_LUIT_PROG
    Boolean callfilter;		/* true to invoke luit */
    Boolean use_encoding;	/* true to use -encoding option for luit */
    char *locale_str;		/* "locale" resource */
    char *localefilter;		/* path for luit */
#endif
    fontWarningTypes fontWarnings;
    int limit_resize;
#ifdef ALLOWLOGGING
    Boolean log_on;
#endif
    Boolean login_shell;
    Boolean re_verse;
    Boolean re_verse0;		/* initial value of "-rv" */
    XtGravity resizeGravity;
    Boolean reverseWrap;
    Boolean autoWrap;
    Boolean logInhibit;
    Boolean signalInhibit;
#if OPT_TEK4014
    Boolean tekInhibit;
    Boolean tekSmall;		/* start tek window in small size */
    Boolean TekEmu;		/* true if Tektronix emulation	*/
    Boolean Tshow;		/* Tek window showing		*/
#endif
    Boolean scrollbar;
#ifdef SCROLLBAR_RIGHT
    Boolean useRight;
#endif
    Boolean titeInhibit;
    Boolean tiXtraScroll;	/* scroll on ti/te */
    Boolean cdXtraScroll;	/* scroll on cd (clear-display) */
    Boolean appcursorDefault;
    Boolean appkeypadDefault;
#if OPT_INPUT_METHOD
    char* f_x;			/* font for XIM */
    char* input_method;
    char* preedit_type;
    Boolean open_im;		/* true if input-method is opened */
    int retry_im;
#endif
    Boolean dynamicColors;
#ifndef NO_ACTIVE_ICON
    char *active_icon_s;	/* use application icon window  */
    unsigned icon_border_width;
    Pixel icon_border_pixel;
#endif /* NO_ACTIVE_ICON */
#if OPT_DEC_SOFTFONT
    Boolean font_loadable;
#endif
#if OPT_SHIFT_FONTS
    Boolean shift_fonts;	/* true if we interpret fontsize-shifting */
#endif
#if OPT_SUNPC_KBD
    int ctrl_fkeys;		/* amount to add to XK_F1 for ctrl modifier */
#endif
#if OPT_NUM_LOCK
    Boolean real_NumLock;	/* true if we treat NumLock key specially */
    Boolean alwaysUseMods;	/* true if we always want f-key modifiers */
#endif
#if OPT_RENDERFONT
    VTFontNames default_xft;
    float face_size[NMENUFONTS];
    char *render_font_s;
#endif
} Misc;

typedef struct _Work {
    int dummy;
#ifdef SunXK_F36
#define MAX_UDK 37
#else
#define MAX_UDK 35
#endif
    struct {
	char *str;
	int len;
    } user_keys[MAX_UDK];
#ifndef NO_ACTIVE_ICON
    int active_icon;		/* use application icon window  */
#endif /* NO_ACTIVE_ICON */
#if OPT_INPUT_METHOD
    Boolean cannot_im;		/* true if we cannot use input-method */
    XFontSet xim_fs;		/* fontset for XIM preedit */
    int xim_fs_ascent;		/* ascent of fs */
    TInput inputs[NINPUTWIDGETS];
#endif
#if OPT_MAXIMIZE
#define MAX_EWMH_MODE 3
#define MAX_EWMH_DATA (1 + OPT_TEK4014)
    struct {
	int mode;		/* fullscreen, etc.		*/
	Boolean checked[MAX_EWMH_MODE];
	Boolean allowed[MAX_EWMH_MODE];
    } ewmh[MAX_EWMH_DATA];
#endif
#if OPT_NUM_LOCK
    unsigned num_lock;		/* modifier for Num_Lock */
    unsigned alt_mods;		/* modifier for Alt_L or Alt_R */
    unsigned meta_mods;		/* modifier for Meta_L or Meta_R */
#endif
    XtermFontNames fonts;
#if OPT_RENDERFONT
    Boolean render_font;
#endif
#if OPT_DABBREV
#define MAX_DABBREV	1024	/* maximum word length as in tcsh */
    char dabbrev_data[MAX_DABBREV];
#endif
    ScrnColors *oldColors;
    Boolean palette_changed;
} Work;

typedef struct {int foo;} XtermClassPart, TekClassPart;

typedef struct _XtermClassRec {
    CoreClassPart  core_class;
    XtermClassPart xterm_class;
} XtermClassRec;

extern WidgetClass xtermWidgetClass;

#define IsXtermWidget(w) (XtClass(w) == xtermWidgetClass)

#if OPT_TEK4014
typedef struct _TekClassRec {
    CoreClassPart core_class;
    TekClassPart tek_class;
} TekClassRec;

extern WidgetClass tekWidgetClass;

#define IsTekWidget(w) (XtClass(w) == tekWidgetClass)

#endif

/* define masks for keyboard.flags */
#define MODE_KAM	xBIT(0)	/* mode 2: keyboard action mode */
#define MODE_DECKPAM	xBIT(1)	/* keypad application mode */
#define MODE_DECCKM	xBIT(2)	/* private mode 1: cursor keys */
#define MODE_SRM	xBIT(3)	/* mode 12: send-receive mode */
#define MODE_DECBKM	xBIT(4)	/* private mode 67: backarrow */
#define MODE_DECSDM	xBIT(5)	/* private mode 80: sixel scrolling mode */

#define N_MARGINBELL	10

#define TAB_BITS_SHIFT	5	/* FIXME: 2**5 == 32 (should derive) */
#define TAB_BITS_WIDTH	(1 << TAB_BITS_SHIFT)
#define TAB_ARRAY_SIZE	(1024 / TAB_BITS_WIDTH)
#define MAX_TABS	(TAB_BITS_WIDTH * TAB_ARRAY_SIZE)

typedef unsigned Tabs [TAB_ARRAY_SIZE];

typedef struct _XtermWidgetRec {
    CorePart	core;
    XSizeHints	hints;
    XVisualInfo *visInfo;
    int		numVisuals;
    Bool	init_menu;
    TKeyboard	keyboard;	/* terminal keyboard		*/
    TScreen	screen;		/* terminal screen		*/
    IFlags	flags;		/* mode flags			*/
    int		cur_foreground; /* current foreground color	*/
    int		cur_background; /* current background color	*/
    Pixel	dft_foreground; /* default foreground color	*/
    Pixel	dft_background; /* default background color	*/
    Pixel	old_foreground; /* original foreground color	*/
    Pixel	old_background; /* original background color	*/
#if OPT_ISO_COLORS
    int		sgr_foreground; /* current SGR foreground color */
    int		sgr_background; /* current SGR background color */
    Boolean	sgr_extended;	/* SGR set with extended codes? */
#endif
    IFlags	initflags;	/* initial mode flags		*/
    Tabs	tabs;		/* tabstops of the terminal	*/
    Misc	misc;		/* miscellaneous parameters	*/
    Work	work;		/* workspace (no resources)	*/
} XtermWidgetRec, *XtermWidget;

#if OPT_TEK4014
typedef struct _TekWidgetRec {
    CorePart	core;
    XtermWidget vt;		/* main widget has border, etc. */
    TekPart	tek;		/* contains resources */
    TekScreen	screen;		/* contains working data (no resources) */
    Bool	init_menu;
    XSizeHints	hints;
} TekWidgetRec, *TekWidget;
#endif /* OPT_TEK4014 */

/*
 * terminal flags
 * There are actually two namespaces mixed together here.
 * One is the set of flags that can go in screen->visbuf attributes
 * and which must fit in a char (see OFF_ATTRS).
 * The other is the global setting stored in
 * term->flags and screen->save_modes.  This need only fit in an unsigned.
 */

#define AttrBIT(n)	xBIT(n)		/* text-attributes */
#define MiscBIT(n)	xBIT(n + 16)	/* miscellaneous state flags */

/* global flags and character flags (visible character attributes) */
#define INVERSE		AttrBIT(0)	/* invert the characters to be output */
#define UNDERLINE	AttrBIT(1)	/* true if underlining */
#define BOLD		AttrBIT(2)
#define BLINK		AttrBIT(3)
/* global flags (also character attributes) */
#define BG_COLOR	AttrBIT(4)	/* true if background set */
#define FG_COLOR	AttrBIT(5)	/* true if foreground set */

/* character flags (internal attributes) */
#define PROTECTED	AttrBIT(6)	/* a character that cannot be erased */
#define CHARDRAWN	AttrBIT(7)	/* a character has been drawn here on
					   the screen.  Used to distinguish
					   blanks from empty parts of the
					   screen when selecting */

#if OPT_WIDE_ATTRS
#define ATR_FAINT	AttrBIT(8)
#define ATR_ITALIC	AttrBIT(9)
#define ATR_STRIKEOUT	AttrBIT(10)
#define ATR_DBL_UNDER	AttrBIT(11)
#define SGR_MASK2       (ATR_FAINT | ATR_ITALIC | ATR_STRIKEOUT | ATR_DBL_UNDER)
#else
#define SGR_MASK2       0
#endif

/*
 * Other flags
 */
#define WRAPAROUND	MiscBIT(0)	/* true if auto wraparound mode */
#define	REVERSEWRAP	MiscBIT(1)	/* true if reverse wraparound mode */
#define REVERSE_VIDEO	MiscBIT(2)	/* true if screen white on black */
#define LINEFEED	MiscBIT(3)	/* true if in auto linefeed mode */
#define ORIGIN		MiscBIT(4)	/* true if in origin mode */
#define INSERT		MiscBIT(5)	/* true if in insert mode */
#define SMOOTHSCROLL	MiscBIT(6)	/* true if in smooth scroll mode */
#define IN132COLUMNS	MiscBIT(7)	/* true if in 132 column mode */
#define INVISIBLE	MiscBIT(8)	/* true if writing invisible text */
#define NATIONAL        MiscBIT(9)	/* true if writing national charset */
#define LEFT_RIGHT      MiscBIT(10)	/* true if left/right margin mode */
#define NOCLEAR_COLM    MiscBIT(11)	/* true if no clear on DECCOLM change */

#define DrawBIT(n)	xBIT(n + 8)	/* drawXtermText flags */
/* The following attributes are used in the argument of drawXtermText()  */
#define NOBACKGROUND	DrawBIT(0)	/* Used for overstrike */
#define NOTRANSLATION	DrawBIT(1)	/* No scan for chars missing in font */
#define DOUBLEWFONT	DrawBIT(2)	/* The actual X-font is double-width */
#define DOUBLEHFONT	DrawBIT(3)	/* The actual X-font is double-height */
#define CHARBYCHAR	DrawBIT(4)	/* Draw chars one-by-one */

/* The following attribute is used in the argument of xtermSpecialFont etc */
#define NORESOLUTION	DrawBIT(5)	/* find the font without resolution */


/*
 * Groups of attributes
 */
			/* mask for video-attributes only */
#define SGR_MASK	(BOLD | BLINK | UNDERLINE | INVERSE)

			/* mask: user-visible attributes */
#define	ATTRIBUTES	(SGR_MASK | SGR_MASK2 | BG_COLOR | FG_COLOR | INVISIBLE | PROTECTED)

/* The toplevel-call to drawXtermText() should have text-attributes guarded: */
#define DRAWX_MASK	(ATTRIBUTES | CHARDRAWN)

/*
 * BOLDATTR is not only nonzero when we will use bold font, but uses the bits
 * for BOLD/BLINK to match against the video attributes which were originally
 * requested.
 */
#define USE_BOLD(screen) ((screen)->allowBoldFonts)

#if OPT_BLINK_TEXT
#define BOLDATTR(screen) (unsigned) (USE_BOLD(screen) ? (BOLD | ((screen)->blink_as_bold ? BLINK : 0)) : 0)
#else
#define BOLDATTR(screen) (unsigned) (USE_BOLD(screen) ? (BOLD | BLINK) : 0)
#endif

/*
 * Per-line flags
 */
#define LINEWRAPPED	AttrBIT(0)
/* used once per line to indicate that it wraps onto the next line so we can
 * tell the difference between lines that have wrapped around and lines that
 * have ended naturally with a CR at column max_col.
 */
#define LINEBLINKED	AttrBIT(1)
/* set when the line contains blinking text.
 */

#if OPT_ZICONBEEP || OPT_TOOLBAR
#define HANDLE_STRUCT_NOTIFY 1
#else
#define HANDLE_STRUCT_NOTIFY 0
#endif

/*
 * If we've set protected attributes with the DEC-style DECSCA, then we'll have
 * to use DECSED or DECSEL to erase preserving protected text.  (The normal ED,
 * EL won't preserve protected-text).  If we've used SPA, then normal ED and EL
 * will preserve protected-text.  To keep things simple, just remember the last
 * control that was used to begin protected-text, and use that to determine how
 * erases are performed (otherwise we'd need 2 bits per protected character).
 */
#define OFF_PROTECT 0
#define DEC_PROTECT 1
#define ISO_PROTECT 2

#define TScreenOf(xw)	(&(xw)->screen)
#define TekScreenOf(tw) (&(tw)->screen)

#define PrinterOf(screen) (screen)->printer_state

#ifdef SCROLLBAR_RIGHT
#define OriginX(screen) (((term->misc.useRight)?0:ScrollbarWidth(screen)) + screen->border)
#else
#define OriginX(screen) (ScrollbarWidth(screen) + screen->border)
#endif

#define OriginY(screen) (screen->border)

#define CursorMoved(screen) \
		((screen)->cursor_moved || \
		    ((screen)->cursorp.col != (screen)->cur_col || \
		     (screen)->cursorp.row != (screen)->cur_row))

#define CursorX2(screen,col,fw) ((col) * (int)(fw) + OriginX(screen))
#define CursorX(screen,col)     CursorX2(screen, col, FontWidth(screen))
#define CursorY2(screen,row)    (((row) * FontHeight(screen)) + screen->border)
#define CursorY(screen,row)     CursorY2(screen, INX2ROW(screen, row))

/*
 * These definitions depend on whether xterm supports active-icon.
 */
#ifndef NO_ACTIVE_ICON
#define IsIconWin(screen,win)	((win) == &(screen)->iconVwin)
#define IsIcon(screen)		(WhichVWin(screen) == &(screen)->iconVwin)
#define WhichVWin(screen)	((screen)->whichVwin)
#define WhichTWin(screen)	((screen)->whichTwin)

#define WhichVFont(screen,name)	(IsIcon(screen) ? getIconicFont(screen) \
						: getNormalFont(screen, name))->fs
#define FontAscent(screen)	(IsIcon(screen) ? getIconicFont(screen)->fs->ascent \
						: WhichVWin(screen)->f_ascent)
#define FontDescent(screen)	(IsIcon(screen) ? getIconicFont(screen)->fs->descent \
						: WhichVWin(screen)->f_descent)
#else /* NO_ACTIVE_ICON */

#define IsIconWin(screen,win)	(False)
#define IsIcon(screen)		(False)
#define WhichVWin(screen)	(&((screen)->fullVwin))
#define WhichTWin(screen)	(&((screen)->fullTwin))

#define WhichVFont(screen,name)	getNormalFont(screen, name)->fs
#define FontAscent(screen)	WhichVWin(screen)->f_ascent
#define FontDescent(screen)	WhichVWin(screen)->f_descent

#endif /* NO_ACTIVE_ICON */

#define okFont(font) ((font) != 0 && (font)->fid != 0)

/*
 * Macro to check if we are iconified; do not use render for that case.
 */
#define UsingRenderFont(xw)	(((xw)->work.render_font == True) && !IsIcon(TScreenOf(xw)))

/*
 * These definitions do not depend on whether xterm supports active-icon.
 */
#define VWindow(screen)		WhichVWin(screen)->window
#define VShellWindow(xw)	XtWindow(SHELL_OF(xw))
#define TWindow(screen)		WhichTWin(screen)->window
#define TShellWindow		XtWindow(SHELL_OF(tekWidget))

#if OPT_DOUBLE_BUFFER
#define VDrawable(screen)	(((screen)->needSwap=1), WhichVWin(screen)->drawable)
#else
#define VDrawable(screen)	VWindow(screen)
#endif

#define Width(screen)		WhichVWin(screen)->width
#define Height(screen)		WhichVWin(screen)->height
#define FullWidth(screen)	WhichVWin(screen)->fullwidth
#define FullHeight(screen)	WhichVWin(screen)->fullheight
#define FontWidth(screen)	WhichVWin(screen)->f_width
#define FontHeight(screen)	WhichVWin(screen)->f_height

#define NormalFont(screen)	WhichVFont(screen, fNorm)
#define BoldFont(screen)	WhichVFont(screen, fBold)

#if OPT_WIDE_CHARS
#define NormalWFont(screen)	WhichVFont(screen, fWide)
#define BoldWFont(screen)	WhichVFont(screen, fWBold)
#endif

#define ScrollbarWidth(screen)	WhichVWin(screen)->sb_info.width

#define NormalGC(w,sp)		getCgsGC(w, WhichVWin(sp), gcNorm)
#define ReverseGC(w,sp)		getCgsGC(w, WhichVWin(sp), gcNormReverse)
#define NormalBoldGC(w,sp)	getCgsGC(w, WhichVWin(sp), gcBold)
#define ReverseBoldGC(w,sp)	getCgsGC(w, WhichVWin(sp), gcBoldReverse)

#define TWidth(screen)		WhichTWin(screen)->width
#define THeight(screen)		WhichTWin(screen)->height
#define TFullWidth(screen)	WhichTWin(screen)->fullwidth
#define TFullHeight(screen)	WhichTWin(screen)->fullheight
#define TekScale(screen)	WhichTWin(screen)->tekscale

/* use these before tek4014 is realized, good enough for default "9x15" font */
#define TDefaultRows		37
#define TDefaultCols		75

#define BorderWidth(w)		((w)->core.border_width)
#define BorderPixel(w)		((w)->core.border_pixel)

#define AllowXtermOps(w,name)	(TScreenOf(w)->name && !TScreenOf(w)->allowSendEvents)

#define AllowColorOps(w,name)	(AllowXtermOps(w, allowColorOps) || \
				 !TScreenOf(w)->disallow_color_ops[name])

#define AllowFontOps(w,name)	(AllowXtermOps(w, allowFontOps) || \
				 !TScreenOf(w)->disallow_font_ops[name])

#define AllowMouseOps(w,name)	(AllowXtermOps(w, allowMouseOps) || \
				 !TScreenOf(w)->disallow_mouse_ops[name])

#define AllowTcapOps(w,name)	(AllowXtermOps(w, allowTcapOps) || \
				 !TScreenOf(w)->disallow_tcap_ops[name])

#define AllowTitleOps(w)	AllowXtermOps(w, allowTitleOps)

#define SpecialWindowOps(w,name) (!TScreenOf(w)->disallow_win_ops[name])
#define AllowWindowOps(w,name)	(AllowXtermOps(w, allowWindowOps) || \
				 SpecialWindowOps(w,name))

#if OPT_TOOLBAR
#define ToolbarHeight(w)	((resource.toolBar) \
				 ? ((w)->VT100_TB_INFO(menu_height) \
				  + (w)->VT100_TB_INFO(menu_border) * 2) \
				 : 0)
#else
#define ToolbarHeight(w) 0
#endif

#if OPT_TEK4014
#define TEK_LINK_BLOCK_SIZE 1024

typedef struct Tek_Link
{
	struct Tek_Link	*next;	/* pointer to next TekLink in list
				   NULL <=> this is last TekLink */
	unsigned short fontsize;/* character size, 0-3 */
	unsigned short count;	/* number of chars in data */
	char *ptr;		/* current pointer into data */
	char data [TEK_LINK_BLOCK_SIZE];
} TekLink;
#endif /* OPT_TEK4014 */

/* flags for cursors */
#define	OFF		0
#define	ON		1
#define	BLINKED_OFF	2
#define	CLEAR		0
#define	TOGGLE		1

/* flags for inhibit */
#ifdef ALLOWLOGGING
#define	I_LOG		0x01
#endif
#define	I_SIGNAL	0x02
#define	I_TEK		0x04

/***====================================================================***/

#if OPT_TRACE
#undef NDEBUG			/* turn on assert's */
#else
#ifndef NDEBUG
#define NDEBUG			/* not debugging, don't do assert's */
#endif
#endif

#include <trace.h>

#ifndef TRACE
#define TRACE(p) /*nothing*/
#endif

#ifndef TRACE_CLOSE
#define TRACE_CLOSE() /*nothing*/
#endif

#ifndef TRACE_ARGV
#define TRACE_ARGV(tag,argv) /*nothing*/
#endif

#ifndef TRACE_CHILD
#define TRACE_CHILD /*nothing*/
#endif

#ifndef TRACE_FOCUS
#define TRACE_FOCUS(w,e) /*nothing*/
#endif

#ifndef TRACE_HINTS
#define TRACE_HINTS(hints) /*nothing*/
#endif

#ifndef TRACE_IDS
#define TRACE_IDS /*nothing*/
#endif

#ifndef TRACE_OPTS
#define TRACE_OPTS(opts,ress,lens) /*nothing*/
#endif

#ifndef TRACE_TRANS
#define TRACE_TRANS(name,w) /*nothing*/
#endif

#ifndef TRACE_WIN_ATTRS
#define TRACE_WIN_ATTRS(w) /*nothing*/
#endif

#ifndef TRACE_WM_HINTS
#define TRACE_WM_HINTS(w) /*nothing*/
#endif

#ifndef TRACE_XRES
#define TRACE_XRES() /*nothing*/
#endif

#ifndef TRACE2
#define TRACE2(p) /*nothing*/
#endif

#if OPT_TRACE && !defined(DEBUG)
#define DEBUG 1
#endif

#ifdef DEBUG
#define if_DEBUG(code) if(debug) code
#else
#define if_DEBUG(code) /*nothing*/
#endif

#define DEBUG_MSG(text) if_DEBUG({ IGNORE_RC(write(2, text, sizeof(text) - 1)); })

/* *INDENT-ON* */

#endif /* included_ptyx_h */