ncurses-5.7/ncurses/tty/lib_vidattr.c - nest-learning-thermostat/5.0.2/ncurses - Git at Google

 /****************************************************************************
  * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc.              *
  *                                                                          *
  * 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, distribute with modifications, 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 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  *                                                                          *
  * 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.                                                           *
  ****************************************************************************/

 /****************************************************************************
  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  *     and: Thomas E. Dickey                        1996 on                 *
  ****************************************************************************/

 /*
  *	vidputs(newmode, outc)
  *
  *	newmode is taken to be the logical 'or' of the symbols in curses.h
  *	representing graphic renditions.  The terminal is set to be in all of
  *	the given modes, if possible.
  *
  *	if the new attribute is normal
  *		if exit-alt-char-set exists
  *			emit it
  *		emit exit-attribute-mode
  *	else if set-attributes exists
  *		use it to set exactly what you want
  *	else
  *		if exit-attribute-mode exists
  *			turn off everything
  *		else
  *			turn off those which can be turned off and aren't in
  *			newmode.
  *		turn on each mode which should be on and isn't, one by one
  *
  *	NOTE that this algorithm won't achieve the desired mix of attributes
  *	in some cases, but those are probably just those cases in which it is
  *	actually impossible, anyway, so...
  *
  * 	NOTE that we cannot assume that there's no interaction between color
  *	and other attribute resets.  So each time we reset color (or other
  *	attributes) we'll have to be prepared to restore the other.
  */

 #include <curses.priv.h>
 #include <term.h>

 MODULE_ID("$Id: lib_vidattr.c,v 1.49 2007/06/30 21:58:04 tom Exp $")

 #define doPut(mode) TPUTS_TRACE(#mode); tputs(mode, 1, outc)

 #define TurnOn(mask,mode) \
 	if ((turn_on & mask) && mode) { doPut(mode); }

 #define TurnOff(mask,mode) \
 	if ((turn_off & mask) && mode) { doPut(mode); turn_off &= ~mask; }

 	/* if there is no current screen, assume we *can* do color */
 #define SetColorsIf(why,old_attr) \
 	if (can_color && (why)) { \
 		int old_pair = PAIR_NUMBER(old_attr); \
 		TR(TRACE_ATTRS, ("old pair = %d -- new pair = %d", old_pair, pair)); \
 		if ((pair != old_pair) \
 		 || (fix_pair0 && (pair == 0)) \
 		 || (reverse ^ ((old_attr & A_REVERSE) != 0))) { \
 			_nc_do_color(old_pair, pair, reverse, outc); \
 		} \
 	}

 #define PreviousAttr _nc_prescreen.previous_attr

 NCURSES_EXPORT(int)
 vidputs(chtype newmode, int (*outc) (int))
 {
     attr_t turn_on, turn_off;
     int pair;
     bool reverse = FALSE;
     bool can_color = (SP == 0 || SP->_coloron);
 #if NCURSES_EXT_FUNCS
     bool fix_pair0 = (SP != 0 && SP->_coloron && !SP->_default_color);
 #else
 #define fix_pair0 FALSE
 #endif

     newmode &= A_ATTRIBUTES;
     T((T_CALLED("vidputs(%s)"), _traceattr(newmode)));

     /* this allows us to go on whether or not newterm() has been called */
     if (SP)
 	PreviousAttr = AttrOf(SCREEN_ATTRS(SP));

     TR(TRACE_ATTRS, ("previous attribute was %s", _traceattr(PreviousAttr)));

     if ((SP != 0)
 	&& (magic_cookie_glitch > 0)) {
 #if USE_XMC_SUPPORT
 	static const chtype table[] =
 	{
 	    A_STANDOUT,
 	    A_UNDERLINE,
 	    A_REVERSE,
 	    A_BLINK,
 	    A_DIM,
 	    A_BOLD,
 	    A_INVIS,
 	    A_PROTECT,
 	};
 	unsigned n;
 	int used = 0;
 	int limit = (max_attributes <= 0) ? 1 : max_attributes;
 	chtype retain = 0;

 	/*
 	 * Limit the number of attribute bits set in the newmode according to
 	 * the terminfo max_attributes value.
 	 */
 	for (n = 0; n < SIZEOF(table); ++n) {
 	    if ((table[n] & SP->_ok_attributes) == 0) {
 		newmode &= ~table[n];
 	    } else if ((table[n] & newmode) != 0) {
 		if (used++ >= limit) {
 		    newmode &= ~table[n];
 		    if (newmode == retain)
 			break;
 		} else {
 		    retain = newmode;
 		}
 	    }
 	}
 #else
 	newmode &= ~(SP->_xmc_suppress);
 #endif
 	TR(TRACE_ATTRS, ("suppressed attribute is %s", _traceattr(newmode)));
     }

     /*
      * If we have a terminal that cannot combine color with video
      * attributes, use the colors in preference.
      */
     if (((newmode & A_COLOR) != 0
 	 || fix_pair0)
 	&& (no_color_video > 0)) {
 	/*
 	 * If we had chosen the A_xxx definitions to correspond to the
 	 * no_color_video mask, we could simply shift it up and mask off the
 	 * attributes.  But we did not (actually copied Solaris' definitions).
 	 * However, this is still simpler/faster than a lookup table.
 	 *
 	 * The 63 corresponds to A_STANDOUT, A_UNDERLINE, A_REVERSE, A_BLINK,
 	 * A_DIM, A_BOLD which are 1:1 with no_color_video.  The bits that
 	 * correspond to A_INVIS, A_PROTECT (192) must be shifted up 1 and
 	 * A_ALTCHARSET (256) down 2 to line up.  We use the NCURSES_BITS
 	 * macro so this will work properly for the wide-character layout.
 	 */
 	unsigned value = no_color_video;
 	attr_t mask = NCURSES_BITS((value & 63)
 				   | ((value & 192) << 1)
 				   | ((value & 256) >> 2), 8);

 	if ((mask & A_REVERSE) != 0
 	    && (newmode & A_REVERSE) != 0) {
 	    reverse = TRUE;
 	    mask &= ~A_REVERSE;
 	}
 	newmode &= ~mask;
     }

     if (newmode == PreviousAttr)
 	returnCode(OK);

     pair = PAIR_NUMBER(newmode);

     if (reverse) {
 	newmode &= ~A_REVERSE;
     }

     turn_off = (~newmode & PreviousAttr) & ALL_BUT_COLOR;
     turn_on = (newmode & ~PreviousAttr) & ALL_BUT_COLOR;

     SetColorsIf(((pair == 0) && !fix_pair0), PreviousAttr);

     if (newmode == A_NORMAL) {
 	if ((PreviousAttr & A_ALTCHARSET) && exit_alt_charset_mode) {
 	    doPut(exit_alt_charset_mode);
 	    PreviousAttr &= ~A_ALTCHARSET;
 	}
 	if (PreviousAttr) {
 	    if (exit_attribute_mode) {
 		doPut(exit_attribute_mode);
 	    } else {
 		if (!SP || SP->_use_rmul) {
 		    TurnOff(A_UNDERLINE, exit_underline_mode);
 		}
 		if (!SP || SP->_use_rmso) {
 		    TurnOff(A_STANDOUT, exit_standout_mode);
 		}
 	    }
 	    PreviousAttr &= ALL_BUT_COLOR;
 	}

 	SetColorsIf((pair != 0) || fix_pair0, PreviousAttr);
     } else if (set_attributes) {
 	if (turn_on || turn_off) {
 	    TPUTS_TRACE("set_attributes");
 	    tputs(tparm(set_attributes,
 			(newmode & A_STANDOUT) != 0,
 			(newmode & A_UNDERLINE) != 0,
 			(newmode & A_REVERSE) != 0,
 			(newmode & A_BLINK) != 0,
 			(newmode & A_DIM) != 0,
 			(newmode & A_BOLD) != 0,
 			(newmode & A_INVIS) != 0,
 			(newmode & A_PROTECT) != 0,
 			(newmode & A_ALTCHARSET) != 0), 1, outc);
 	    PreviousAttr &= ALL_BUT_COLOR;
 	}
 	SetColorsIf((pair != 0) || fix_pair0, PreviousAttr);
     } else {

 	TR(TRACE_ATTRS, ("turning %s off", _traceattr(turn_off)));

 	TurnOff(A_ALTCHARSET, exit_alt_charset_mode);

 	if (!SP || SP->_use_rmul) {
 	    TurnOff(A_UNDERLINE, exit_underline_mode);
 	}

 	if (!SP || SP->_use_rmso) {
 	    TurnOff(A_STANDOUT, exit_standout_mode);
 	}

 	if (turn_off && exit_attribute_mode) {
 	    doPut(exit_attribute_mode);
 	    turn_on |= (newmode & ALL_BUT_COLOR);
 	    PreviousAttr &= ALL_BUT_COLOR;
 	}
 	SetColorsIf((pair != 0) || fix_pair0, PreviousAttr);

 	TR(TRACE_ATTRS, ("turning %s on", _traceattr(turn_on)));
 	/* *INDENT-OFF* */
 	TurnOn(A_ALTCHARSET,	enter_alt_charset_mode);
 	TurnOn(A_BLINK,		enter_blink_mode);
 	TurnOn(A_BOLD,		enter_bold_mode);
 	TurnOn(A_DIM,		enter_dim_mode);
 	TurnOn(A_REVERSE,	enter_reverse_mode);
 	TurnOn(A_STANDOUT,	enter_standout_mode);
 	TurnOn(A_PROTECT,	enter_protected_mode);
 	TurnOn(A_INVIS,		enter_secure_mode);
 	TurnOn(A_UNDERLINE,	enter_underline_mode);
 #if USE_WIDEC_SUPPORT
 	TurnOn(A_HORIZONTAL,	enter_horizontal_hl_mode);
 	TurnOn(A_LEFT,		enter_left_hl_mode);
 	TurnOn(A_LOW,		enter_low_hl_mode);
 	TurnOn(A_RIGHT,		enter_right_hl_mode);
 	TurnOn(A_TOP,		enter_top_hl_mode);
 	TurnOn(A_VERTICAL,	enter_vertical_hl_mode);
 #endif
 	/* *INDENT-ON* */

     }

     if (reverse)
 	newmode |= A_REVERSE;

     if (SP)
 	SetAttr(SCREEN_ATTRS(SP), newmode);
     else
 	PreviousAttr = newmode;

     returnCode(OK);
 }

 NCURSES_EXPORT(int)
 vidattr(chtype newmode)
 {
     T((T_CALLED("vidattr(%s)"), _traceattr(newmode)));

     returnCode(vidputs(newmode, _nc_outch));
 }

 NCURSES_EXPORT(chtype)
 termattrs(void)
 {
     chtype attrs = A_NORMAL;

     T((T_CALLED("termattrs()")));
     if (enter_alt_charset_mode)
 	attrs |= A_ALTCHARSET;

     if (enter_blink_mode)
 	attrs |= A_BLINK;

     if (enter_bold_mode)
 	attrs |= A_BOLD;

     if (enter_dim_mode)
 	attrs |= A_DIM;

     if (enter_reverse_mode)
 	attrs |= A_REVERSE;

     if (enter_standout_mode)
 	attrs |= A_STANDOUT;

     if (enter_protected_mode)
 	attrs |= A_PROTECT;

     if (enter_secure_mode)
 	attrs |= A_INVIS;

     if (enter_underline_mode)
 	attrs |= A_UNDERLINE;

     if (SP->_coloron)
 	attrs |= A_COLOR;

     returnChar(attrs);
 }
	/****************************************************************************
	* Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
	* *
	* 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, distribute with modifications, 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 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
	* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
	* *
	* 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. *
	****************************************************************************/

	/****************************************************************************
	* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
	* and: Eric S. Raymond <esr@snark.thyrsus.com> *
	* and: Thomas E. Dickey 1996 on *
	****************************************************************************/

	/*
	* vidputs(newmode, outc)
	*
	* newmode is taken to be the logical 'or' of the symbols in curses.h
	* representing graphic renditions. The terminal is set to be in all of
	* the given modes, if possible.
	*
	* if the new attribute is normal
	* if exit-alt-char-set exists
	* emit it
	* emit exit-attribute-mode
	* else if set-attributes exists
	* use it to set exactly what you want
	* else
	* if exit-attribute-mode exists
	* turn off everything
	* else
	* turn off those which can be turned off and aren't in
	* newmode.
	* turn on each mode which should be on and isn't, one by one
	*
	* NOTE that this algorithm won't achieve the desired mix of attributes
	* in some cases, but those are probably just those cases in which it is
	* actually impossible, anyway, so...
	*
	* NOTE that we cannot assume that there's no interaction between color
	* and other attribute resets. So each time we reset color (or other
	* attributes) we'll have to be prepared to restore the other.
	*/

	#include <curses.priv.h>
	#include <term.h>

	MODULE_ID("$Id: lib_vidattr.c,v 1.49 2007/06/30 21:58:04 tom Exp $")

	#define doPut(mode) TPUTS_TRACE(#mode); tputs(mode, 1, outc)

	#define TurnOn(mask,mode) \
	if ((turn_on & mask) && mode) { doPut(mode); }

	#define TurnOff(mask,mode) \
	if ((turn_off & mask) && mode) { doPut(mode); turn_off &= ~mask; }

	/* if there is no current screen, assume we can do color */
	#define SetColorsIf(why,old_attr) \
	if (can_color && (why)) { \
	int old_pair = PAIR_NUMBER(old_attr); \
	TR(TRACE_ATTRS, ("old pair = %d -- new pair = %d", old_pair, pair)); \
	if ((pair != old_pair) \
	\|\| (fix_pair0 && (pair == 0)) \
	\|\| (reverse ^ ((old_attr & A_REVERSE) != 0))) { \
	_nc_do_color(old_pair, pair, reverse, outc); \
	} \
	}

	#define PreviousAttr _nc_prescreen.previous_attr

	NCURSES_EXPORT(int)
	vidputs(chtype newmode, int (*outc) (int))
	{
	attr_t turn_on, turn_off;
	int pair;
	bool reverse = FALSE;
	bool can_color = (SP == 0 \|\| SP->_coloron);
	#if NCURSES_EXT_FUNCS
	bool fix_pair0 = (SP != 0 && SP->_coloron && !SP->_default_color);
	#else
	#define fix_pair0 FALSE
	#endif

	newmode &= A_ATTRIBUTES;
	T((T_CALLED("vidputs(%s)"), _traceattr(newmode)));

	/* this allows us to go on whether or not newterm() has been called */
	if (SP)
	PreviousAttr = AttrOf(SCREEN_ATTRS(SP));

	TR(TRACE_ATTRS, ("previous attribute was %s", _traceattr(PreviousAttr)));

	if ((SP != 0)
	&& (magic_cookie_glitch > 0)) {
	#if USE_XMC_SUPPORT
	static const chtype table[] =
	{
	A_STANDOUT,
	A_UNDERLINE,
	A_REVERSE,
	A_BLINK,
	A_DIM,
	A_BOLD,
	A_INVIS,
	A_PROTECT,
	};
	unsigned n;
	int used = 0;
	int limit = (max_attributes <= 0) ? 1 : max_attributes;
	chtype retain = 0;

	/*
	* Limit the number of attribute bits set in the newmode according to
	* the terminfo max_attributes value.
	*/
	for (n = 0; n < SIZEOF(table); ++n) {
	if ((table[n] & SP->_ok_attributes) == 0) {
	newmode &= ~table[n];
	} else if ((table[n] & newmode) != 0) {
	if (used++ >= limit) {
	newmode &= ~table[n];
	if (newmode == retain)
	break;
	} else {
	retain = newmode;
	}
	}
	}
	#else
	newmode &= ~(SP->_xmc_suppress);
	#endif
	TR(TRACE_ATTRS, ("suppressed attribute is %s", _traceattr(newmode)));
	}

	/*
	* If we have a terminal that cannot combine color with video
	* attributes, use the colors in preference.
	*/
	if (((newmode & A_COLOR) != 0
	\|\| fix_pair0)
	&& (no_color_video > 0)) {
	/*
	* If we had chosen the A_xxx definitions to correspond to the
	* no_color_video mask, we could simply shift it up and mask off the
	* attributes. But we did not (actually copied Solaris' definitions).
	* However, this is still simpler/faster than a lookup table.
	*
	* The 63 corresponds to A_STANDOUT, A_UNDERLINE, A_REVERSE, A_BLINK,
	* A_DIM, A_BOLD which are 1:1 with no_color_video. The bits that
	* correspond to A_INVIS, A_PROTECT (192) must be shifted up 1 and
	* A_ALTCHARSET (256) down 2 to line up. We use the NCURSES_BITS
	* macro so this will work properly for the wide-character layout.
	*/
	unsigned value = no_color_video;
	attr_t mask = NCURSES_BITS((value & 63)
	\| ((value & 192) << 1)
	\| ((value & 256) >> 2), 8);

	if ((mask & A_REVERSE) != 0
	&& (newmode & A_REVERSE) != 0) {
	reverse = TRUE;
	mask &= ~A_REVERSE;
	}
	newmode &= ~mask;
	}

	if (newmode == PreviousAttr)
	returnCode(OK);

	pair = PAIR_NUMBER(newmode);

	if (reverse) {
	newmode &= ~A_REVERSE;
	}

	turn_off = (~newmode & PreviousAttr) & ALL_BUT_COLOR;
	turn_on = (newmode & ~PreviousAttr) & ALL_BUT_COLOR;

	SetColorsIf(((pair == 0) && !fix_pair0), PreviousAttr);

	if (newmode == A_NORMAL) {
	if ((PreviousAttr & A_ALTCHARSET) && exit_alt_charset_mode) {
	doPut(exit_alt_charset_mode);
	PreviousAttr &= ~A_ALTCHARSET;
	}
	if (PreviousAttr) {
	if (exit_attribute_mode) {
	doPut(exit_attribute_mode);
	} else {
	if (!SP \|\| SP->_use_rmul) {
	TurnOff(A_UNDERLINE, exit_underline_mode);
	}
	if (!SP \|\| SP->_use_rmso) {
	TurnOff(A_STANDOUT, exit_standout_mode);
	}
	}
	PreviousAttr &= ALL_BUT_COLOR;
	}

	SetColorsIf((pair != 0) \|\| fix_pair0, PreviousAttr);
	} else if (set_attributes) {
	if (turn_on \|\| turn_off) {
	TPUTS_TRACE("set_attributes");
	tputs(tparm(set_attributes,
	(newmode & A_STANDOUT) != 0,
	(newmode & A_UNDERLINE) != 0,
	(newmode & A_REVERSE) != 0,
	(newmode & A_BLINK) != 0,
	(newmode & A_DIM) != 0,
	(newmode & A_BOLD) != 0,
	(newmode & A_INVIS) != 0,
	(newmode & A_PROTECT) != 0,
	(newmode & A_ALTCHARSET) != 0), 1, outc);
	PreviousAttr &= ALL_BUT_COLOR;
	}
	SetColorsIf((pair != 0) \|\| fix_pair0, PreviousAttr);
	} else {

	TR(TRACE_ATTRS, ("turning %s off", _traceattr(turn_off)));

	TurnOff(A_ALTCHARSET, exit_alt_charset_mode);

	if (!SP \|\| SP->_use_rmul) {
	TurnOff(A_UNDERLINE, exit_underline_mode);
	}

	if (!SP \|\| SP->_use_rmso) {
	TurnOff(A_STANDOUT, exit_standout_mode);
	}

	if (turn_off && exit_attribute_mode) {
	doPut(exit_attribute_mode);
	turn_on \|= (newmode & ALL_BUT_COLOR);
	PreviousAttr &= ALL_BUT_COLOR;
	}
	SetColorsIf((pair != 0) \|\| fix_pair0, PreviousAttr);

	TR(TRACE_ATTRS, ("turning %s on", _traceattr(turn_on)));
	/* INDENT-OFF */
	TurnOn(A_ALTCHARSET, enter_alt_charset_mode);
	TurnOn(A_BLINK, enter_blink_mode);
	TurnOn(A_BOLD, enter_bold_mode);
	TurnOn(A_DIM, enter_dim_mode);
	TurnOn(A_REVERSE, enter_reverse_mode);
	TurnOn(A_STANDOUT, enter_standout_mode);
	TurnOn(A_PROTECT, enter_protected_mode);
	TurnOn(A_INVIS, enter_secure_mode);
	TurnOn(A_UNDERLINE, enter_underline_mode);
	#if USE_WIDEC_SUPPORT
	TurnOn(A_HORIZONTAL, enter_horizontal_hl_mode);
	TurnOn(A_LEFT, enter_left_hl_mode);
	TurnOn(A_LOW, enter_low_hl_mode);
	TurnOn(A_RIGHT, enter_right_hl_mode);
	TurnOn(A_TOP, enter_top_hl_mode);
	TurnOn(A_VERTICAL, enter_vertical_hl_mode);
	#endif
	/* INDENT-ON */

	}

	if (reverse)
	newmode \|= A_REVERSE;

	if (SP)
	SetAttr(SCREEN_ATTRS(SP), newmode);
	else
	PreviousAttr = newmode;

	returnCode(OK);
	}

	NCURSES_EXPORT(int)
	vidattr(chtype newmode)
	{
	T((T_CALLED("vidattr(%s)"), _traceattr(newmode)));

	returnCode(vidputs(newmode, _nc_outch));
	}

	NCURSES_EXPORT(chtype)
	termattrs(void)
	{
	chtype attrs = A_NORMAL;

	T((T_CALLED("termattrs()")));
	if (enter_alt_charset_mode)
	attrs \|= A_ALTCHARSET;

	if (enter_blink_mode)
	attrs \|= A_BLINK;

	if (enter_bold_mode)
	attrs \|= A_BOLD;

	if (enter_dim_mode)
	attrs \|= A_DIM;

	if (enter_reverse_mode)
	attrs \|= A_REVERSE;

	if (enter_standout_mode)
	attrs \|= A_STANDOUT;

	if (enter_protected_mode)
	attrs \|= A_PROTECT;

	if (enter_secure_mode)
	attrs \|= A_INVIS;

	if (enter_underline_mode)
	attrs \|= A_UNDERLINE;

	if (SP->_coloron)
	attrs \|= A_COLOR;

	returnChar(attrs);
	}