	__acquires(rose_node_list_lock)
{
	struct rose_node *rose_node;
	int i = 1;

	spin_lock_bh(&rose_node_list_lock);
	if (*pos == 0)
		return SEQ_START_TOKEN;

	for (rose_node = rose_node_list; rose_node && i < *pos;
	     rose_node = rose_node->next, ++i);

	return (i == *pos) ? rose_node : NULL;
}


static void *rose_node_next(struct seq_file *seq, void *v, loff_t *pos)
{
	++*pos;

	return (v == SEQ_START_TOKEN) ? rose_node_list
		: ((struct rose_node *)v)->next;
}

net: rose: fix UAF bug caused by rose_t0timer_expiry

There are UAF bugs caused by rose_t0timer_expiry(). The
root cause is that del_timer() could not stop the timer
handler that is running and there is no synchronization.
One of the race conditions is shown below:

    (thread 1)             |        (thread 2)
                           | rose_device_event
                           |   rose_rt_device_down
                           |     rose_remove_neigh
rose_t0timer_expiry        |       rose_stop_t0timer(rose_neigh)
  ...                      |         del_timer(&neigh->t0timer)
                           |         kfree(rose_neigh) //[1]FREE
  neigh->dce_mode //[2]USE |

The rose_neigh is deallocated in position [1] and use in
position [2].

The crash trace triggered by POC is like below:

BUG: KASAN: use-after-free in expire_timers+0x144/0x320
Write of size 8 at addr ffff888009b19658 by task swapper/0/0
...
Call Trace:
 <IRQ>
 dump_stack_lvl+0xbf/0xee
 print_address_description+0x7b/0x440
 print_report+0x101/0x230
 ? expire_timers+0x144/0x320
 kasan_report+0xed/0x120
 ? expire_timers+0x144/0x320
 expire_timers+0x144/0x320
 __run_timers+0x3ff/0x4d0
 run_timer_softirq+0x41/0x80
 __do_softirq+0x233/0x544
 ...

This patch changes rose_stop_ftimer() and rose_stop_t0timer()
in rose_remove_neigh() to del_timer_sync() in order that the
timer handler could be finished before the resources such as
rose_neigh and so on are deallocated. As a result, the UAF
bugs could be mitigated.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20220705125610.77971-1-duoming@zju.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>


	__acquires(rose_route_list_lock)
{
	struct rose_route *rose_route;
	int i = 1;

	spin_lock_bh(&rose_route_list_lock);
	if (*pos == 0)
		return SEQ_START_TOKEN;

	for (rose_route = rose_route_list; rose_route && i < *pos;
	     rose_route = rose_route->next, ++i);

	return (i == *pos) ? rose_route : NULL;
}


static void *rose_neigh_next(struct seq_file *seq, void *v, loff_t *pos)
{
	++*pos;

	return (v == SEQ_START_TOKEN) ? rose_neigh_list
		: ((struct rose_neigh *)v)->next;
}


static void rose_remove_neigh(struct rose_neigh *rose_neigh)
{
	struct rose_neigh *s;

	del_timer_sync(&rose_neigh->ftimer);
	del_timer_sync(&rose_neigh->t0timer);

	skb_queue_purge(&rose_neigh->queue);

	if ((s = rose_neigh_list) == rose_neigh) {
		rose_neigh_list = rose_neigh->next;
		if (rose_neigh->ax25)
			ax25_cb_put(rose_neigh->ax25);
		kfree(rose_neigh->digipeat);
		kfree(rose_neigh);
		return;
	}

	while (s != NULL && s->next != NULL) {
		if (s->next == rose_neigh) {
			s->next = rose_neigh->next;
			if (rose_neigh->ax25)
				ax25_cb_put(rose_neigh->ax25);
			kfree(rose_neigh->digipeat);
			kfree(rose_neigh);
			return;
		}

		s = s->next;
	}
}


static int rose_route_show(struct seq_file *seq, void *v)
{
	char buf[11], rsbuf[11];

	if (v == SEQ_START_TOKEN)
		seq_puts(seq,
			 "lci  address     callsign   neigh  <-> lci  address     callsign   neigh\n");
	else {
		struct rose_route *rose_route = v;

		if (rose_route->neigh1)
			seq_printf(seq,
				   "%3.3X  %-10s  %-9s  %05d      ",
				   rose_route->lci1,
				   rose2asc(rsbuf, &rose_route->src_addr),
				   ax2asc(buf, &rose_route->src_call),
				   rose_route->neigh1->number);
		else
			seq_puts(seq,
				 "000  *           *          00000      ");

		if (rose_route->neigh2)
			seq_printf(seq,
				   "%3.3X  %-10s  %-9s  %05d\n",
				   rose_route->lci2,
				   rose2asc(rsbuf, &rose_route->dest_addr),
				   ax2asc(buf, &rose_route->dest_call),
				   rose_route->neigh2->number);
		 else
			 seq_puts(seq,
				  "000  *           *          00000\n");
		}
	return 0;
}


v_visop(cmdarg_T *cap)
{
    static char_u trans[] = "YyDdCcxdXdAAIIrr";

    // Uppercase means linewise, except in block mode, then "D" deletes till
    // the end of the line, and "C" replaces till EOL
    if (isupper(cap->cmdchar))
    {
	if (VIsual_mode != Ctrl_V)
	{
	    VIsual_mode_orig = VIsual_mode;
	    VIsual_mode = 'V';
	}
	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
	    curwin->w_curswant = MAXCOL;
    }
    cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
    nv_operator(cap);
}

patch 8.2.4956: reading past end of line with "gf" in Visual block mode

Problem:    Reading past end of line with "gf" in Visual block mode.
Solution:   Do not include the NUL in the length.


nv_optrans(cmdarg_T *cap)
{
    static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
			      (char_u *)"d$", (char_u *)"c$",
			      (char_u *)"cl", (char_u *)"cc",
			      (char_u *)"yy", (char_u *)":s\r"};
    static char_u *str = (char_u *)"xXDCsSY&";

    if (!checkclearopq(cap->oap))
    {
	// In Vi "2D" doesn't delete the next line.  Can't translate it
	// either, because "2." should also not use the count.
	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
	{
	    cap->oap->start = curwin->w_cursor;
	    cap->oap->op_type = OP_DELETE;
#ifdef FEAT_EVAL
	    set_op_var(OP_DELETE);
#endif
	    cap->count1 = 1;
	    nv_dollar(cap);
	    finish_op = TRUE;
	    ResetRedobuff();
	    AppendCharToRedobuff('D');
	}
	else
	{
	    if (cap->count0)
		stuffnumReadbuff(cap->count0);
	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
	}
    }
    cap->opcount = 0;
}


nv_wordcmd(cmdarg_T *cap)
{
    int		n;
    int		word_end;
    int		flag = FALSE;
    pos_T	startpos = curwin->w_cursor;

    // Set inclusive for the "E" and "e" command.
    if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
	word_end = TRUE;
    else
	word_end = FALSE;
    cap->oap->inclusive = word_end;

    // "cw" and "cW" are a special case.
    if (!word_end && cap->oap->op_type == OP_CHANGE)
    {
	n = gchar_cursor();
	if (n != NUL)			// not an empty line
	{
	    if (VIM_ISWHITE(n))
	    {
		// Reproduce a funny Vi behaviour: "cw" on a blank only
		// changes one character, not all blanks until the start of
		// the next word.  Only do this when the 'w' flag is included
		// in 'cpoptions'.
		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
		{
		    cap->oap->inclusive = TRUE;
		    cap->oap->motion_type = MCHAR;
		    return;
		}
	    }
	    else
	    {
		// This is a little strange. To match what the real Vi does,
		// we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
		// that we are not on a space or a TAB.  This seems impolite
		// at first, but it's really more what we mean when we say
		// 'cw'.
		// Another strangeness: When standing on the end of a word
		// "ce" will change until the end of the next word, but "cw"
		// will change only one character! This is done by setting
		// flag.
		cap->oap->inclusive = TRUE;
		word_end = TRUE;
		flag = TRUE;
	    }
	}
    }

    cap->oap->motion_type = MCHAR;
    curwin->w_set_curswant = TRUE;
    if (word_end)
	n = end_word(cap->count1, cap->arg, flag, FALSE);
    else
	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);

    // Don't leave the cursor on the NUL past the end of line. Unless we
    // didn't move it forward.
    if (LT_POS(startpos, curwin->w_cursor))
	adjust_cursor(cap->oap);

    if (n == FAIL && cap->oap->op_type == OP_NOP)
	clearopbeep(cap->oap);
    else
    {
	adjust_for_sel(cap);
#ifdef FEAT_FOLDING
	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
	    foldOpenCursor();
#endif
    }
}


nv_z_get_count(cmdarg_T *cap, int *nchar_arg)
{
    int		nchar = *nchar_arg;
    long	n;

    // "z123{nchar}": edit the count before obtaining {nchar}
    if (checkclearop(cap->oap))
	return FALSE;
    n = nchar - '0';

    for (;;)
    {
#ifdef USE_ON_FLY_SCROLL
	dont_scroll = TRUE;		// disallow scrolling here
#endif
	++no_mapping;
	++allow_keys;   // no mapping for nchar, but allow key codes
	nchar = plain_vgetc();
	LANGMAP_ADJUST(nchar, TRUE);
	--no_mapping;
	--allow_keys;
#ifdef FEAT_CMDL_INFO
	(void)add_to_showcmd(nchar);
#endif
	if (nchar == K_DEL || nchar == K_KDEL)
	    n /= 10;
	else if (VIM_ISDIGIT(nchar))
	    n = n * 10 + (nchar - '0');
	else if (nchar == CAR)
	{
#ifdef FEAT_GUI
	    need_mouse_correct = TRUE;
#endif
	    win_setheight((int)n);
	    break;
	}
	else if (nchar == 'l'
		|| nchar == 'h'
		|| nchar == K_LEFT
		|| nchar == K_RIGHT)
	{
	    cap->count1 = n ? n * cap->count1 : cap->count1;
	    *nchar_arg = nchar;
	    return TRUE;
	}
	else
	{
	    clearopbeep(cap->oap);
	    break;
	}
    }
    cap->oap->op_type = OP_NOP;
    return FALSE;
}


nv_suspend(cmdarg_T *cap)
{
    clearop(cap->oap);
    if (VIsual_active)
	end_visual_mode();		// stop Visual mode
    do_cmdline_cmd((char_u *)"stop");
}


nv_record(cmdarg_T *cap)
{
    if (cap->oap->op_type == OP_FORMAT)
    {
	// "gqq" is the same as "gqgq": format line
	cap->cmdchar = 'g';
	cap->nchar = 'q';
	nv_operator(cap);
    }
    else if (!checkclearop(cap->oap))
    {
#ifdef FEAT_CMDWIN
	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
	{
	    stuffcharReadbuff(cap->nchar);
	    stuffcharReadbuff(K_CMDWIN);
	}
	else
#endif
	    // (stop) recording into a named register, unless executing a
	    // register
	    if (reg_executing == 0 && do_record(cap->nchar) == FAIL)
		clearopbeep(cap->oap);
    }
}


pop_showcmd(void)
{
    if (!p_sc)
	return;

    STRCPY(showcmd_buf, old_showcmd_buf);

    display_showcmd();
}


may_start_select(int c)
{
    VIsual_select = (c == 'o' || (stuff_empty() && typebuf_typed()))
		    && vim_strchr(p_slm, c) != NULL;
}


clearop(oparg_T *oap)
{
    oap->op_type = OP_NOP;
    oap->regname = 0;
    oap->motion_force = NUL;
    oap->use_reg_one = FALSE;
    motion_force = NUL;
}


nv_scroll(cmdarg_T *cap)
{
    int		used = 0;
    long	n;
#ifdef FEAT_FOLDING
    linenr_T	lnum;
#endif
    int		half;

    cap->oap->motion_type = MLINE;
    setpcmark();

    if (cap->cmdchar == 'L')
    {
	validate_botline();	    // make sure curwin->w_botline is valid
	curwin->w_cursor.lnum = curwin->w_botline - 1;
	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
	    curwin->w_cursor.lnum = 1;
	else
	{
#ifdef FEAT_FOLDING
	    if (hasAnyFolding(curwin))
	    {
		// Count a fold for one screen line.
		for (n = cap->count1 - 1; n > 0
			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
		{
		    (void)hasFolding(curwin->w_cursor.lnum,
						&curwin->w_cursor.lnum, NULL);
		    --curwin->w_cursor.lnum;
		}
	    }
	    else
#endif
		curwin->w_cursor.lnum -= cap->count1 - 1;
	}
    }
    else
    {
	if (cap->cmdchar == 'M')
	{
#ifdef FEAT_DIFF
	    // Don't count filler lines above the window.
	    used -= diff_check_fill(curwin, curwin->w_topline)
							  - curwin->w_topfill;
#endif
	    validate_botline();	    // make sure w_empty_rows is valid
	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
	    {
#ifdef FEAT_DIFF
		// Count half he number of filler lines to be "below this
		// line" and half to be "above the next line".
		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
							     + n) / 2 >= half)
		{
		    --n;
		    break;
		}
#endif
		used += plines(curwin->w_topline + n);
		if (used >= half)
		    break;
#ifdef FEAT_FOLDING
		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
		    n = lnum - curwin->w_topline;
#endif
	    }
	    if (n > 0 && used > curwin->w_height)
		--n;
	}
	else // (cap->cmdchar == 'H')
	{
	    n = cap->count1 - 1;
#ifdef FEAT_FOLDING
	    if (hasAnyFolding(curwin))
	    {
		// Count a fold for one screen line.
		lnum = curwin->w_topline;
		while (n-- > 0 && lnum < curwin->w_botline - 1)
		{
		    (void)hasFolding(lnum, NULL, &lnum);
		    ++lnum;
		}
		n = lnum - curwin->w_topline;
	    }
#endif
	}
	curwin->w_cursor.lnum = curwin->w_topline + n;
	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
    }

    // Correct for 'so', except when an operator is pending.
    if (cap->oap->op_type == OP_NOP)
	cursor_correct();
    beginline(BL_SOL | BL_FIX);
}


nv_regname(cmdarg_T *cap)
{
    if (checkclearop(cap->oap))
	return;
#ifdef FEAT_EVAL
    if (cap->nchar == '=')
	cap->nchar = get_expr_register();
#endif
    if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
    {
	cap->oap->regname = cap->nchar;
	cap->opcount = cap->count0;	// remember count before '"'
#ifdef FEAT_EVAL
	set_reg_var(cap->oap->regname);
#endif
    }
    else
	clearopbeep(cap->oap);
}


adjust_cursor(oparg_T *oap)
{
    // The cursor cannot remain on the NUL when:
    // - the column is > 0
    // - not in Visual mode or 'selection' is "o"
    // - 'virtualedit' is not "all" and not "onemore".
    if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL
		&& (!VIsual_active || *p_sel == 'o')
		&& !virtual_active() && (get_ve_flags() & VE_ONEMORE) == 0)
    {
	--curwin->w_cursor.col;
	// prevent cursor from moving on the trail byte
	if (has_mbyte)
	    mb_adjust_cursor();
	oap->inclusive = TRUE;
    }
}


normal_cmd_get_count(
	cmdarg_T	*cap,
	int		c,
	int		toplevel UNUSED,
	int		set_prevcount UNUSED,
	int		*ctrl_w,
	int		*need_flushbuf UNUSED)
{
getcount:
    if (!(VIsual_active && VIsual_select))
    {
	// Handle a count before a command and compute ca.count0.
	// Note that '0' is a command and not the start of a count, but it's
	// part of a count after other digits.
	while ((c >= '1' && c <= '9')
		|| (cap->count0 != 0 && (c == K_DEL || c == K_KDEL
			|| c == '0')))
	{
	    if (c == K_DEL || c == K_KDEL)
	    {
		cap->count0 /= 10;
#ifdef FEAT_CMDL_INFO
		del_from_showcmd(4);	// delete the digit and ~@%
#endif
	    }
	    else if (cap->count0 > 99999999L)
	    {
		cap->count0 = 999999999L;
	    }
	    else
	    {
		cap->count0 = cap->count0 * 10 + (c - '0');
	    }
#ifdef FEAT_EVAL
	    // Set v:count here, when called from main() and not a stuffed
	    // command, so that v:count can be used in an expression mapping
	    // right after the count. Do set it for redo.
	    if (toplevel && readbuf1_empty())
		set_vcount_ca(cap, &set_prevcount);
#endif
	    if (*ctrl_w)
	    {
		++no_mapping;
		++allow_keys;		// no mapping for nchar, but keys
	    }
	    ++no_zero_mapping;		// don't map zero here
	    c = plain_vgetc();
	    LANGMAP_ADJUST(c, TRUE);
	    --no_zero_mapping;
	    if (*ctrl_w)
	    {
		--no_mapping;
		--allow_keys;
	    }
#ifdef FEAT_CMDL_INFO
	    *need_flushbuf |= add_to_showcmd(c);
#endif
	}

	// If we got CTRL-W there may be a/another count
	if (c == Ctrl_W && !*ctrl_w && cap->oap->op_type == OP_NOP)
	{
	    *ctrl_w = TRUE;
	    cap->opcount = cap->count0;	// remember first count
	    cap->count0 = 0;
	    ++no_mapping;
	    ++allow_keys;		// no mapping for nchar, but keys
	    c = plain_vgetc();		// get next character
	    LANGMAP_ADJUST(c, TRUE);
	    --no_mapping;
	    --allow_keys;
#ifdef FEAT_CMDL_INFO
	    *need_flushbuf |= add_to_showcmd(c);
#endif
	    goto getcount;		// jump back
	}
    }

    if (c == K_CURSORHOLD)
    {
	// Save the count values so that ca.opcount and ca.count0 are exactly
	// the same when coming back here after handling K_CURSORHOLD.
	cap->oap->prev_opcount = cap->opcount;
	cap->oap->prev_count0 = cap->count0;
    }
    else if (cap->opcount != 0)
    {
	// If we're in the middle of an operator (including after entering a
	// yank buffer with '"') AND we had a count before the operator, then
	// that count overrides the current value of ca.count0.
	// What this means effectively, is that commands like "3dw" get turned
	// into "d3w" which makes things fall into place pretty neatly.
	// If you give a count before AND after the operator, they are
	// multiplied.
	if (cap->count0)
	{
	    if (cap->opcount >= 999999999L / cap->count0)
		cap->count0 = 999999999L;
	    else
		cap->count0 *= cap->opcount;
	}
	else
	    cap->count0 = cap->opcount;
    }

    // Always remember the count.  It will be set to zero (on the next call,
    // above) when there is no pending operator.
    // When called from main(), save the count for use by the "count" built-in
    // variable.
    cap->opcount = cap->count0;
    cap->count1 = (cap->count0 == 0 ? 1 : cap->count0);

#ifdef FEAT_EVAL
    // Only set v:count when called from main() and not a stuffed command.
    // Do set it for redo.
    if (toplevel && readbuf1_empty())
	set_vcount(cap->count0, cap->count1, set_prevcount);
#endif

    return c;
}


find_ident_at_pos(
    win_T	*wp,
    linenr_T	lnum,
    colnr_T	startcol,
    char_u	**text,
    int		*textcol,	// column where "text" starts, can be NULL
    int		find_type)
{
    char_u	*ptr;
    int		col = 0;	// init to shut up GCC
    int		i;
    int		this_class = 0;
    int		prev_class;
    int		prevcol;
    int		bn = 0;		// bracket nesting

    // if i == 0: try to find an identifier
    // if i == 1: try to find any non-white text
    ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
    for (i = (find_type & FIND_IDENT) ? 0 : 1;	i < 2; ++i)
    {
	/*
	 * 1. skip to start of identifier/text
	 */
	col = startcol;
	if (has_mbyte)
	{
	    while (ptr[col] != NUL)
	    {
		// Stop at a ']' to evaluate "a[x]".
		if ((find_type & FIND_EVAL) && ptr[col] == ']')
		    break;
		this_class = mb_get_class(ptr + col);
		if (this_class != 0 && (i == 1 || this_class != 1))
		    break;
		col += (*mb_ptr2len)(ptr + col);
	    }
	}
	else
	    while (ptr[col] != NUL
		    && (i == 0 ? !vim_iswordc(ptr[col]) : VIM_ISWHITE(ptr[col]))
		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
		    )
		++col;

	// When starting on a ']' count it, so that we include the '['.
	bn = ptr[col] == ']';

	/*
	 * 2. Back up to start of identifier/text.
	 */
	if (has_mbyte)
	{
	    // Remember class of character under cursor.
	    if ((find_type & FIND_EVAL) && ptr[col] == ']')
		this_class = mb_get_class((char_u *)"a");
	    else
		this_class = mb_get_class(ptr + col);
	    while (col > 0 && this_class != 0)
	    {
		prevcol = col - 1 - (*mb_head_off)(ptr, ptr + col - 1);
		prev_class = mb_get_class(ptr + prevcol);
		if (this_class != prev_class
			&& (i == 0
			    || prev_class == 0
			    || (find_type & FIND_IDENT))
			&& (!(find_type & FIND_EVAL)
			    || prevcol == 0
			    || !find_is_eval_item(ptr + prevcol, &prevcol,
							       &bn, BACKWARD))
			)
		    break;
		col = prevcol;
	    }

	    // If we don't want just any old text, or we've found an
	    // identifier, stop searching.
	    if (this_class > 2)
		this_class = 2;
	    if (!(find_type & FIND_STRING) || this_class == 2)
		break;
	}
	else
	{
	    while (col > 0
		    && ((i == 0
			    ? vim_iswordc(ptr[col - 1])
			    : (!VIM_ISWHITE(ptr[col - 1])
				&& (!(find_type & FIND_IDENT)
				    || !vim_iswordc(ptr[col - 1]))))
			|| ((find_type & FIND_EVAL)
			    && col > 1
			    && find_is_eval_item(ptr + col - 1, &col,
							       &bn, BACKWARD))
			))
		--col;

	    // If we don't want just any old text, or we've found an
	    // identifier, stop searching.
	    if (!(find_type & FIND_STRING) || vim_iswordc(ptr[col]))
		break;
	}
    }

    if (ptr[col] == NUL || (i == 0
		&& (has_mbyte ? this_class != 2 : !vim_iswordc(ptr[col]))))
    {
	// didn't find an identifier or text
	if ((find_type & FIND_NOERROR) == 0)
	{
	    if (find_type & FIND_STRING)
		emsg(_(e_no_string_under_cursor));
	    else
		emsg(_(e_no_identifier_under_cursor));
	}
	return 0;
    }
    ptr += col;
    *text = ptr;
    if (textcol != NULL)
	*textcol = col;

    /*
     * 3. Find the end if the identifier/text.
     */
    bn = 0;
    startcol -= col;
    col = 0;
    if (has_mbyte)
    {
	// Search for point of changing multibyte character class.
	this_class = mb_get_class(ptr);
	while (ptr[col] != NUL
		&& ((i == 0 ? mb_get_class(ptr + col) == this_class
			    : mb_get_class(ptr + col) != 0)
		    || ((find_type & FIND_EVAL)
			&& col <= (int)startcol
			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
		))
	    col += (*mb_ptr2len)(ptr + col);
    }
    else
	while ((i == 0 ? vim_iswordc(ptr[col])
		       : (ptr[col] != NUL && !VIM_ISWHITE(ptr[col])))
		    || ((find_type & FIND_EVAL)
			&& col <= (int)startcol
			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
		)
	    ++col;

    return col;
}


find_ident_under_cursor(char_u **text, int find_type)
{
    return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
				curwin->w_cursor.col, text, NULL, find_type);
}


nv_help(cmdarg_T *cap)
{
    if (!checkclearopq(cap->oap))
	ex_help(NULL);
}


nv_esc(cmdarg_T *cap)
{
    int		no_reason;

    no_reason = (cap->oap->op_type == OP_NOP
		&& cap->opcount == 0
		&& cap->count0 == 0
		&& cap->oap->regname == 0
		&& !p_im);

    if (cap->arg)		// TRUE for CTRL-C
    {
	if (restart_edit == 0
#ifdef FEAT_CMDWIN
		&& cmdwin_type == 0
#endif
		&& !VIsual_active
		&& no_reason)
	{
	    if (anyBufIsChanged())
		msg(_("Type  :qa!  and press <Enter> to abandon all changes and exit Vim"));
	    else
		msg(_("Type  :qa  and press <Enter> to exit Vim"));
	}

	// Don't reset "restart_edit" when 'insertmode' is set, it won't be
	// set again below when halfway a mapping.
	if (!p_im)
	    restart_edit = 0;
#ifdef FEAT_CMDWIN
	if (cmdwin_type != 0)
	{
	    cmdwin_result = K_IGNORE;
	    got_int = FALSE;	// don't stop executing autocommands et al.
	    return;
	}
#endif
    }
#ifdef FEAT_CMDWIN
    else if (cmdwin_type != 0 && ex_normal_busy)
    {
	// When :normal runs out of characters while in the command line window
	// vgetorpeek() will return ESC.  Exit the cmdline window to break the
	// loop.
	cmdwin_result = K_IGNORE;
	return;
    }
#endif

    if (VIsual_active)
    {
	end_visual_mode();	// stop Visual
	check_cursor_col();	// make sure cursor is not beyond EOL
	curwin->w_set_curswant = TRUE;
	redraw_curbuf_later(INVERTED);
    }
    else if (no_reason)
	vim_beep(BO_ESC);
    clearop(cap->oap);

    // A CTRL-C is often used at the start of a menu.  When 'insertmode' is
    // set return to Insert mode afterwards.
    if (restart_edit == 0 && goto_im() && ex_normal_busy == 0)
	restart_edit = 'a';
}


nv_g_home_m_cmd(cmdarg_T *cap)
{
    int		i;
    int		flag = FALSE;

    if (cap->nchar == '^')
	flag = TRUE;

    cap->oap->motion_type = MCHAR;
    cap->oap->inclusive = FALSE;
    if (curwin->w_p_wrap && curwin->w_width != 0)
    {
	int		width1 = curwin->w_width - curwin_col_off();
	int		width2 = width1 + curwin_col_off2();

	validate_virtcol();
	i = 0;
	if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
	    i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
    }
    else
	i = curwin->w_leftcol;
    // Go to the middle of the screen line.  When 'number' or
    // 'relativenumber' is on and lines are wrapping the middle can be more
    // to the left.
    if (cap->nchar == 'm')
	i += (curwin->w_width - curwin_col_off()
		+ ((curwin->w_p_wrap && i > 0)
		    ? curwin_col_off2() : 0)) / 2;
    coladvance((colnr_T)i);
    if (flag)
    {
	do
	    i = gchar_cursor();
	while (VIM_ISWHITE(i) && oneright() == OK);
	curwin->w_valid &= ~VALID_WCOL;
    }
    curwin->w_set_curswant = TRUE;
}


nv_up(cmdarg_T *cap)
{
    if (mod_mask & MOD_MASK_SHIFT)
    {
	// <S-Up> is page up
	cap->arg = BACKWARD;
	nv_page(cap);
    }
    else
    {
	cap->oap->motion_type = MLINE;
	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
	    clearopbeep(cap->oap);
	else if (cap->arg)
	    beginline(BL_WHITE | BL_FIX);
    }
}


check_visual_highlight(void)
{
    static int	    did_check = FALSE;

    if (full_screen)
    {
	if (!did_check && HL_ATTR(HLF_V) == 0)
	    msg(_("Warning: terminal cannot highlight"));
	did_check = TRUE;
    }
}


reset_VIsual(void)
{
    if (VIsual_active)
    {
	end_visual_mode();
	redraw_curbuf_later(INVERTED);	// delete the inversion later
	VIsual_reselect = FALSE;
    }
}


nv_cursormark(cmdarg_T *cap, int flag, pos_T *pos)
{
    if (check_mark(pos) == FAIL)
	clearop(cap->oap);
    else
    {
	if (cap->cmdchar == '\''
		|| cap->cmdchar == '`'
		|| cap->cmdchar == '['
		|| cap->cmdchar == ']')
	    setpcmark();
	curwin->w_cursor = *pos;
	if (flag)
	    beginline(BL_WHITE | BL_FIX);
	else
	    check_cursor();
    }
    cap->oap->motion_type = flag ? MLINE : MCHAR;
    if (cap->cmdchar == '`')
	cap->oap->use_reg_one = TRUE;
    cap->oap->inclusive = FALSE;		// ignored if not MCHAR
    curwin->w_set_curswant = TRUE;
}


nv_home(cmdarg_T *cap)
{
    // CTRL-HOME is like "gg"
    if (mod_mask & MOD_MASK_CTRL)
	nv_goto(cap);
    else
    {
	cap->count0 = 1;
	nv_pipe(cap);
    }
    ins_at_eol = FALSE;	    // Don't move cursor past eol (only necessary in a
			    // one-character line).
}


nv_ctrlh(cmdarg_T *cap)
{
    if (VIsual_active && VIsual_select)
    {
	cap->cmdchar = 'x';	// BS key behaves like 'x' in Select mode
	v_visop(cap);
    }
    else
	nv_left(cap);
}


nv_tabline(cmdarg_T *cap)
{
    if (cap->oap->op_type != OP_NOP)
	clearopbeep(cap->oap);

    // Even if an operator was pending, we still want to jump tabs.
    goto_tabpage(current_tab);
}


nv_dot(cmdarg_T *cap)
{
    if (!checkclearopq(cap->oap))
    {
	// If "restart_edit" is TRUE, the last but one command is repeated
	// instead of the last command (inserting text). This is used for
	// CTRL-O <.> in insert mode.
	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
	    clearopbeep(cap->oap);
    }
}


nv_gv_cmd(cmdarg_T *cap)
{
    pos_T	tpos;
    int		i;

    if (checkclearop(cap->oap))
	return;

    if (curbuf->b_visual.vi_start.lnum == 0
	    || curbuf->b_visual.vi_start.lnum > curbuf->b_ml.ml_line_count
	    || curbuf->b_visual.vi_end.lnum == 0)
    {
	beep_flush();
	return;
    }

    // set w_cursor to the start of the Visual area, tpos to the end
    if (VIsual_active)
    {
	i = VIsual_mode;
	VIsual_mode = curbuf->b_visual.vi_mode;
	curbuf->b_visual.vi_mode = i;
# ifdef FEAT_EVAL
	curbuf->b_visual_mode_eval = i;
# endif
	i = curwin->w_curswant;
	curwin->w_curswant = curbuf->b_visual.vi_curswant;
	curbuf->b_visual.vi_curswant = i;

	tpos = curbuf->b_visual.vi_end;
	curbuf->b_visual.vi_end = curwin->w_cursor;
	curwin->w_cursor = curbuf->b_visual.vi_start;
	curbuf->b_visual.vi_start = VIsual;
    }
    else
    {
	VIsual_mode = curbuf->b_visual.vi_mode;
	curwin->w_curswant = curbuf->b_visual.vi_curswant;
	tpos = curbuf->b_visual.vi_end;
	curwin->w_cursor = curbuf->b_visual.vi_start;
    }

    VIsual_active = TRUE;
    VIsual_reselect = TRUE;

    // Set Visual to the start and w_cursor to the end of the Visual
    // area.  Make sure they are on an existing character.
    check_cursor();
    VIsual = curwin->w_cursor;
    curwin->w_cursor = tpos;
    check_cursor();
    update_topline();

    // When called from normal "g" command: start Select mode when
    // 'selectmode' contains "cmd".  When called for K_SELECT, always
    // start Select mode.
    if (cap->arg)
    {
	VIsual_select = TRUE;
	VIsual_select_reg = 0;
    }
    else
	may_start_select('c');
    setmouse();
#ifdef FEAT_CLIPBOARD
    // Make sure the clipboard gets updated.  Needed because start and
    // end are still the same, and the selection needs to be owned
    clip_star.vmode = NUL;
#endif
    redraw_curbuf_later(INVERTED);
    showmode();
}


nv_ignore(cmdarg_T *cap)
{
    cap->retval |= CA_COMMAND_BUSY;	// don't call edit() now
}


nv_undo(cmdarg_T *cap)
{
    if (cap->oap->op_type == OP_LOWER || VIsual_active)
    {
	// translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu"
	cap->cmdchar = 'g';
	cap->nchar = 'u';
	nv_operator(cap);
    }
    else
	nv_kundo(cap);
}


nv_csearch(cmdarg_T *cap)
{
    int		t_cmd;

    if (cap->cmdchar == 't' || cap->cmdchar == 'T')
	t_cmd = TRUE;
    else
	t_cmd = FALSE;

    cap->oap->motion_type = MCHAR;
    if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
	clearopbeep(cap->oap);
    else
    {
	curwin->w_set_curswant = TRUE;
	// Include a Tab for "tx" and for "dfx".
	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
		&& (t_cmd || cap->oap->op_type != OP_NOP))
	{
	    colnr_T	scol, ecol;

	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
	    curwin->w_cursor.coladd = ecol - scol;
	}
	else
	    curwin->w_cursor.coladd = 0;
	adjust_for_sel(cap);
#ifdef FEAT_FOLDING
	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
	    foldOpenCursor();
#endif
    }
}


nv_error(cmdarg_T *cap)
{
    clearopbeep(cap->oap);
}


nv_colon(cmdarg_T *cap)
{
    int	old_p_im;
    int	cmd_result;
    int	is_cmdkey = cap->cmdchar == K_COMMAND
					   || cap->cmdchar == K_SCRIPT_COMMAND;
    int	flags;

    if (VIsual_active && !is_cmdkey)
	nv_operator(cap);
    else
    {
	if (cap->oap->op_type != OP_NOP)
	{
	    // Using ":" as a movement is characterwise exclusive.
	    cap->oap->motion_type = MCHAR;
	    cap->oap->inclusive = FALSE;
	}
	else if (cap->count0 && !is_cmdkey)
	{
	    // translate "count:" into ":.,.+(count - 1)"
	    stuffcharReadbuff('.');
	    if (cap->count0 > 1)
	    {
		stuffReadbuff((char_u *)",.+");
		stuffnumReadbuff((long)cap->count0 - 1L);
	    }
	}

	// When typing, don't type below an old message
	if (KeyTyped)
	    compute_cmdrow();

	old_p_im = p_im;

	// get a command line and execute it
	flags = cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0;
	if (is_cmdkey)
	    cmd_result = do_cmdkey_command(cap->cmdchar, flags);
	else
	    cmd_result = do_cmdline(NULL, getexline, NULL, flags);

	// If 'insertmode' changed, enter or exit Insert mode
	if (p_im != old_p_im)
	{
	    if (p_im)
		restart_edit = 'i';
	    else
		restart_edit = 0;
	}

	if (cmd_result == FAIL)
	    // The Ex command failed, do not execute the operator.
	    clearop(cap->oap);
	else if (cap->oap->op_type != OP_NOP
		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
		    || cap->oap->start.col >
			       (colnr_T)STRLEN(ml_get(cap->oap->start.lnum))
		    || did_emsg
		    ))
	    // The start of the operator has become invalid by the Ex command.
	    clearopbeep(cap->oap);
    }
}


nv_cursorhold(cmdarg_T *cap)
{
    apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
    did_cursorhold = TRUE;
    cap->retval |= CA_COMMAND_BUSY;	// don't call edit() now
}


do_check_scrollbind(int check)
{
    static win_T	*old_curwin = NULL;
    static linenr_T	old_topline = 0;
#ifdef FEAT_DIFF
    static int		old_topfill = 0;
#endif
    static buf_T	*old_buf = NULL;
    static colnr_T	old_leftcol = 0;

    if (check && curwin->w_p_scb)
    {
	// If a ":syncbind" command was just used, don't scroll, only reset
	// the values.
	if (did_syncbind)
	    did_syncbind = FALSE;
	else if (curwin == old_curwin)
	{
	    // Synchronize other windows, as necessary according to
	    // 'scrollbind'.  Don't do this after an ":edit" command, except
	    // when 'diff' is set.
	    if ((curwin->w_buffer == old_buf
#ifdef FEAT_DIFF
			|| curwin->w_p_diff
#endif
		)
		&& (curwin->w_topline != old_topline
#ifdef FEAT_DIFF
			|| curwin->w_topfill != old_topfill
#endif
			|| curwin->w_leftcol != old_leftcol))
	    {
		check_scrollbind(curwin->w_topline - old_topline,
			(long)(curwin->w_leftcol - old_leftcol));
	    }
	}
	else if (vim_strchr(p_sbo, 'j')) // jump flag set in 'scrollopt'
	{
	    // When switching between windows, make sure that the relative
	    // vertical offset is valid for the new window.  The relative
	    // offset is invalid whenever another 'scrollbind' window has
	    // scrolled to a point that would force the current window to
	    // scroll past the beginning or end of its buffer.  When the
	    // resync is performed, some of the other 'scrollbind' windows may
	    // need to jump so that the current window's relative position is
	    // visible on-screen.
	    check_scrollbind(curwin->w_topline - curwin->w_scbind_pos, 0L);
	}
	curwin->w_scbind_pos = curwin->w_topline;
    }

    old_curwin = curwin;
    old_topline = curwin->w_topline;
#ifdef FEAT_DIFF
    old_topfill = curwin->w_topfill;
#endif
    old_buf = curwin->w_buffer;
    old_leftcol = curwin->w_leftcol;
}


nv_tabmenu(cmdarg_T *cap)
{
    if (cap->oap->op_type != OP_NOP)
	clearopbeep(cap->oap);

    // Even if an operator was pending, we still want to jump tabs.
    handle_tabmenu();
}


find_is_eval_item(
    char_u	*ptr,
    int		*colp,
    int		*bnp,
    int		dir)
{
    // Accept everything inside [].
    if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD))
	++*bnp;
    if (*bnp > 0)
    {
	if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD))
	    --*bnp;
	return TRUE;
    }

    // skip over "s.var"
    if (*ptr == '.')
	return TRUE;

    // two-character item: s->var
    if (ptr[dir == BACKWARD ? 0 : 1] == '>'
	    && ptr[dir == BACKWARD ? -1 : 0] == '-')
    {
	*colp += dir;
	return TRUE;
    }
    return FALSE;
}


prep_redo_num2(
    int	    regname,
    long    num1,
    int	    cmd1,
    int	    cmd2,
    long    num2,
    int	    cmd3,
    int	    cmd4,
    int	    cmd5)
{
    ResetRedobuff();
    if (regname != 0)	// yank from specified buffer
    {
	AppendCharToRedobuff('"');
	AppendCharToRedobuff(regname);
    }
    if (num1 != 0)
	AppendNumberToRedobuff(num1);
    if (cmd1 != NUL)
	AppendCharToRedobuff(cmd1);
    if (cmd2 != NUL)
	AppendCharToRedobuff(cmd2);
    if (num2 != 0)
	AppendNumberToRedobuff(num2);
    if (cmd3 != NUL)
	AppendCharToRedobuff(cmd3);
    if (cmd4 != NUL)
	AppendCharToRedobuff(cmd4);
    if (cmd5 != NUL)
	AppendCharToRedobuff(cmd5);
}


nv_ver_scrollbar(cmdarg_T *cap)
{
    if (cap->oap->op_type != OP_NOP)
	clearopbeep(cap->oap);

    // Even if an operator was pending, we still want to scroll
    gui_do_scroll();
}


clearopbeep(oparg_T *oap)
{
    clearop(oap);
    beep_flush();
}


nv_gomark(cmdarg_T *cap)
{
    pos_T	*pos;
    int		c;
#ifdef FEAT_FOLDING
    pos_T	old_cursor = curwin->w_cursor;
    int		old_KeyTyped = KeyTyped;    // getting file may reset it
#endif

    if (cap->cmdchar == 'g')
	c = cap->extra_char;
    else
	c = cap->nchar;
    pos = getmark(c, (cap->oap->op_type == OP_NOP));
    if (pos == (pos_T *)-1)	    // jumped to other file
    {
	if (cap->arg)
	{
	    check_cursor_lnum();
	    beginline(BL_WHITE | BL_FIX);
	}
	else
	    check_cursor();
    }
    else
	nv_cursormark(cap, cap->arg, pos);

    // May need to clear the coladd that a mark includes.
    if (!virtual_active())
	curwin->w_cursor.coladd = 0;
    check_cursor_col();
#ifdef FEAT_FOLDING
    if (cap->oap->op_type == OP_NOP
	    && pos != NULL
	    && (pos == (pos_T *)-1 || !EQUAL_POS(old_cursor, *pos))
	    && (fdo_flags & FDO_MARK)
	    && old_KeyTyped)
	foldOpenCursor();
#endif
}


nv_addsub(cmdarg_T *cap)
{
#ifdef FEAT_JOB_CHANNEL
    if (bt_prompt(curbuf) && !prompt_curpos_editable())
	clearopbeep(cap->oap);
    else
#endif
    if (!VIsual_active && cap->oap->op_type == OP_NOP)
    {
	prep_redo_cmd(cap);
	cap->oap->op_type = cap->cmdchar == Ctrl_A ?  OP_NR_ADD : OP_NR_SUB;
	op_addsub(cap->oap, cap->count1, cap->arg);
	cap->oap->op_type = OP_NOP;
    }
    else if (VIsual_active)
	nv_operator(cap);
    else
	clearop(cap->oap);
}


nv_Replace(cmdarg_T *cap)
{
    if (VIsual_active)		// "R" is replace lines
    {
	cap->cmdchar = 'c';
	cap->nchar = NUL;
	VIsual_mode_orig = VIsual_mode; // remember original area for gv
	VIsual_mode = 'V';
	nv_operator(cap);
    }
    else if (!checkclearopq(cap->oap))
    {
	if (!curbuf->b_p_ma)
	    emsg(_(e_cannot_make_changes_modifiable_is_off));
	else
	{
	    if (virtual_active())
		coladvance(getviscol());
	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
	}
    }
}


nv_select(cmdarg_T *cap)
{
    if (VIsual_active)
    {
	VIsual_select = TRUE;
	VIsual_select_reg = 0;
    }
    else if (VIsual_reselect)
    {
	cap->nchar = 'v';	    // fake "gv" command
	cap->arg = TRUE;
	nv_g_cmd(cap);
    }
}


nv_mark(cmdarg_T *cap)
{
    if (!checkclearop(cap->oap))
    {
	if (setmark(cap->nchar) == FAIL)
	    clearopbeep(cap->oap);
    }
}


nv_tagpop(cmdarg_T *cap)
{
    if (!checkclearopq(cap->oap))
	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
}


reset_VIsual_and_resel(void)
{
    if (VIsual_active)
    {
	end_visual_mode();
	redraw_curbuf_later(INVERTED);	// delete the inversion later
    }
    VIsual_reselect = FALSE;
}


is_ident(char_u *line, int offset)
{
    int	i;
    int	incomment = FALSE;
    int	instring = 0;
    int	prev = 0;

    for (i = 0; i < offset && line[i] != NUL; i++)
    {
	if (instring != 0)
	{
	    if (prev != '\\' && line[i] == instring)
		instring = 0;
	}
	else if ((line[i] == '"' || line[i] == '\'') && !incomment)
	{
	    instring = line[i];
	}
	else
	{
	    if (incomment)
	    {
		if (prev == '*' && line[i] == '/')
		    incomment = FALSE;
	    }
	    else if (prev == '/' && line[i] == '*')
	    {
		incomment = TRUE;
	    }
	    else if (prev == '/' && line[i] == '/')
	    {
		return FALSE;
	    }
	}

	prev = line[i];
    }

    return incomment == FALSE && instring == 0;
}


nv_left(cmdarg_T *cap)
{
    long	n;

    if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
    {
	// <C-Left> and <S-Left> move a word or WORD left
	if (mod_mask & MOD_MASK_CTRL)
	    cap->arg = 1;
	nv_bck_word(cap);
	return;
    }

    cap->oap->motion_type = MCHAR;
    cap->oap->inclusive = FALSE;
    for (n = cap->count1; n > 0; --n)
    {
	if (oneleft() == FAIL)
	{
	    // <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
	    //		 'h' wraps to previous line if 'whichwrap' has 'h'.
	    //	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
	    if (       (((cap->cmdchar == K_BS
				|| cap->cmdchar == Ctrl_H)
			    && vim_strchr(p_ww, 'b') != NULL)
			|| (cap->cmdchar == 'h'
			    && vim_strchr(p_ww, 'h') != NULL)
			|| (cap->cmdchar == K_LEFT
			    && vim_strchr(p_ww, '<') != NULL))
		    && curwin->w_cursor.lnum > 1)
	    {
		--(curwin->w_cursor.lnum);
		coladvance((colnr_T)MAXCOL);
		curwin->w_set_curswant = TRUE;

		// When the NL before the first char has to be deleted we
		// put the cursor on the NUL after the previous line.
		// This is a very special case, be careful!
		// Don't adjust op_end now, otherwise it won't work.
		if (	   (cap->oap->op_type == OP_DELETE
			    || cap->oap->op_type == OP_CHANGE)
			&& !LINEEMPTY(curwin->w_cursor.lnum))
		{
		    char_u *cp = ml_get_cursor();

		    if (*cp != NUL)
		    {
			if (has_mbyte)
			    curwin->w_cursor.col += (*mb_ptr2len)(cp);
			else
			    ++curwin->w_cursor.col;
		    }
		    cap->retval |= CA_NO_ADJ_OP_END;
		}
		continue;
	    }
	    // Only beep and flush if not moved at all
	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
		beep_flush();
	    break;
	}
    }
#ifdef FEAT_FOLDING
    if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
					       && cap->oap->op_type == OP_NOP)
	foldOpenCursor();
#endif
}


nv_lineop(cmdarg_T *cap)
{
    cap->oap->motion_type = MLINE;
    if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
	clearopbeep(cap->oap);
    else if (  (cap->oap->op_type == OP_DELETE // only with linewise motions
		&& cap->oap->motion_force != 'v'
		&& cap->oap->motion_force != Ctrl_V)
	    || cap->oap->op_type == OP_LSHIFT
	    || cap->oap->op_type == OP_RSHIFT)
	beginline(BL_SOL | BL_FIX);
    else if (cap->oap->op_type != OP_YANK)	// 'Y' does not move cursor
	beginline(BL_WHITE | BL_FIX);
}


nv_abbrev(cmdarg_T *cap)
{
    if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
	cap->cmdchar = 'x';		// DEL key behaves like 'x'

    // in Visual mode these commands are operators
    if (VIsual_active)
	v_visop(cap);
    else
	nv_optrans(cap);
}


prep_redo_cmd(cmdarg_T *cap)
{
    prep_redo(cap->oap->regname, cap->count0,
				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
}


prep_redo(
    int	    regname,
    long    num,
    int	    cmd1,
    int	    cmd2,
    int	    cmd3,
    int	    cmd4,
    int	    cmd5)
{
    prep_redo_num2(regname, num, cmd1, cmd2, 0L, cmd3, cmd4, cmd5);
}


nv_gd(
    oparg_T	*oap,
    int		nchar,
    int		thisblock)	// 1 for "1gd" and "1gD"
{
    int		len;
    char_u	*ptr;

    if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
	    || find_decl(ptr, len, nchar == 'd', thisblock, SEARCH_START)
								       == FAIL)
    {
	clearopbeep(oap);
    }
    else
    {
#ifdef FEAT_FOLDING
	if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
	    foldOpenCursor();
#endif
	// clear any search statistics
	if (messaging() && !msg_silent && !shortmess(SHM_SEARCHCOUNT))
	    clear_cmdline = TRUE;
    }
}


nv_drop(cmdarg_T *cap UNUSED)
{
    do_put('~', NULL, BACKWARD, 1L, PUT_CURSEND);
}


unshift_special(cmdarg_T *cap)
{
    switch (cap->cmdchar)
    {
	case K_S_RIGHT:	cap->cmdchar = K_RIGHT; break;
	case K_S_LEFT:	cap->cmdchar = K_LEFT; break;
	case K_S_UP:	cap->cmdchar = K_UP; break;
	case K_S_DOWN:	cap->cmdchar = K_DOWN; break;
	case K_S_HOME:	cap->cmdchar = K_HOME; break;
	case K_S_END:	cap->cmdchar = K_END; break;
    }
    cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
}


nv_brace(cmdarg_T *cap)
{
    cap->oap->motion_type = MCHAR;
    cap->oap->use_reg_one = TRUE;
    // The motion used to be inclusive for "(", but that is not what Vi does.
    cap->oap->inclusive = FALSE;
    curwin->w_set_curswant = TRUE;

    if (findsent(cap->arg, cap->count1) == FAIL)
	clearopbeep(cap->oap);
    else
    {
	// Don't leave the cursor on the NUL past end of line.
	adjust_cursor(cap->oap);
	curwin->w_cursor.coladd = 0;
#ifdef FEAT_FOLDING
	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
	    foldOpenCursor();
#endif
    }
}


normal_search(
    cmdarg_T	*cap,
    int		dir,
    char_u	*pat,
    int		opt,		// extra flags for do_search()
    int		*wrapped)
{
    int		i;
    searchit_arg_T sia;
#ifdef FEAT_SEARCH_EXTRA
    pos_T	prev_cursor = curwin->w_cursor;
#endif

    cap->oap->motion_type = MCHAR;
    cap->oap->inclusive = FALSE;
    cap->oap->use_reg_one = TRUE;
    curwin->w_set_curswant = TRUE;

    CLEAR_FIELD(sia);
    i = do_search(cap->oap, dir, dir, pat, cap->count1,
			    opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG, &sia);
    if (wrapped != NULL)
	*wrapped = sia.sa_wrapped;
    if (i == 0)
	clearop(cap->oap);
    else
    {
	if (i == 2)
	    cap->oap->motion_type = MLINE;
	curwin->w_cursor.coladd = 0;
#ifdef FEAT_FOLDING
	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
	    foldOpenCursor();
#endif
    }
#ifdef FEAT_SEARCH_EXTRA
    // Redraw the window to refresh the highlighted matches.
    if (!EQUAL_POS(curwin->w_cursor, prev_cursor) && p_hls && !no_hlsearch)
	redraw_later(SOME_VALID);
#endif

    // "/$" will put the cursor after the end of the line, may need to
    // correct that here
    check_cursor();
    return i;
}


n_swapchar(cmdarg_T *cap)
{
    long	n;
    pos_T	startpos;
    int		did_change = 0;
#ifdef FEAT_NETBEANS_INTG
    pos_T	pos;
    char_u	*ptr;
    int		count;
#endif

    if (checkclearopq(cap->oap))
	return;

    if (LINEEMPTY(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
    {
	clearopbeep(cap->oap);
	return;
    }

    prep_redo_cmd(cap);

    if (u_save_cursor() == FAIL)
	return;

    startpos = curwin->w_cursor;
#ifdef FEAT_NETBEANS_INTG
    pos = startpos;
#endif
    for (n = cap->count1; n > 0; --n)
    {
	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
	inc_cursor();
	if (gchar_cursor() == NUL)
	{
	    if (vim_strchr(p_ww, '~') != NULL
		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
	    {
#ifdef FEAT_NETBEANS_INTG
		if (netbeans_active())
		{
		    if (did_change)
		    {
			ptr = ml_get(pos.lnum);
			count = (int)STRLEN(ptr) - pos.col;
			netbeans_removed(curbuf, pos.lnum, pos.col,
								 (long)count);
			netbeans_inserted(curbuf, pos.lnum, pos.col,
							&ptr[pos.col], count);
		    }
		    pos.col = 0;
		    pos.lnum++;
		}
#endif
		++curwin->w_cursor.lnum;
		curwin->w_cursor.col = 0;
		if (n > 1)
		{
		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
			break;
		    u_clearline();
		}
	    }
	    else
		break;
	}
    }
#ifdef FEAT_NETBEANS_INTG
    if (did_change && netbeans_active())
    {
	ptr = ml_get(pos.lnum);
	count = curwin->w_cursor.col - pos.col;
	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
    }
#endif

    check_cursor();
    curwin->w_set_curswant = TRUE;
    if (did_change)
    {
	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
									  0L);
	curbuf->b_op_start = startpos;
	curbuf->b_op_end = curwin->w_cursor;
	if (curbuf->b_op_end.col > 0)
	    --curbuf->b_op_end.col;
    }
}


del_from_showcmd(int len)
{
    int	    old_len;

    if (!p_sc)
	return;

    old_len = (int)STRLEN(showcmd_buf);
    if (len > old_len)
	len = old_len;
    showcmd_buf[old_len - len] = NUL;

    if (!char_avail())
	display_showcmd();
}


nv_join(cmdarg_T *cap)
{
    if (VIsual_active)	// join the visual lines
	nv_operator(cap);
    else if (!checkclearop(cap->oap))
    {
	if (cap->count0 <= 1)
	    cap->count0 = 2;	    // default for join is two lines!
	if (curwin->w_cursor.lnum + cap->count0 - 1 >
						   curbuf->b_ml.ml_line_count)
	{
	    // can't join when on the last line
	    if (cap->count0 <= 2)
	    {
		clearopbeep(cap->oap);
		return;
	    }
	    cap->count0 = curbuf->b_ml.ml_line_count
						  - curwin->w_cursor.lnum + 1;
	}

	prep_redo(cap->oap->regname, cap->count0,
				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
	(void)do_join(cap->count0, cap->nchar == NUL, TRUE, TRUE, TRUE);
    }
}


nv_put_opt(cmdarg_T *cap, int fix_indent)
{
    int		regname = 0;
    void	*reg1 = NULL, *reg2 = NULL;
    int		empty = FALSE;
    int		was_visual = FALSE;
    int		dir;
    int		flags = 0;
    int		keep_registers = FALSE;

    if (cap->oap->op_type != OP_NOP)
    {
#ifdef FEAT_DIFF
	// "dp" is ":diffput"
	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
	{
	    clearop(cap->oap);
	    nv_diffgetput(TRUE, cap->opcount);
	}
	else
#endif
	clearopbeep(cap->oap);
    }
#ifdef FEAT_JOB_CHANNEL
    else if (bt_prompt(curbuf) && !prompt_curpos_editable())
    {
	clearopbeep(cap->oap);
    }
#endif
    else
    {
	if (fix_indent)
	{
	    dir = (cap->cmdchar == ']' && cap->nchar == 'p')
							 ? FORWARD : BACKWARD;
	    flags |= PUT_FIXINDENT;
	}
	else
	    dir = (cap->cmdchar == 'P'
		    || ((cap->cmdchar == 'g' || cap->cmdchar == 'z')
			&& cap->nchar == 'P')) ? BACKWARD : FORWARD;
	prep_redo_cmd(cap);
	if (cap->cmdchar == 'g')
	    flags |= PUT_CURSEND;
	else if (cap->cmdchar == 'z')
	    flags |= PUT_BLOCK_INNER;

	if (VIsual_active)
	{
	    // Putting in Visual mode: The put text replaces the selected
	    // text.  First delete the selected text, then put the new text.
	    // Need to save and restore the registers that the delete
	    // overwrites if the old contents is being put.
	    was_visual = TRUE;
	    regname = cap->oap->regname;
	    keep_registers = cap->cmdchar == 'P';
#ifdef FEAT_CLIPBOARD
	    adjust_clip_reg(&regname);
#endif
	   if (regname == 0 || regname == '"'
				     || VIM_ISDIGIT(regname) || regname == '-'
#ifdef FEAT_CLIPBOARD
		    || (clip_unnamed && (regname == '*' || regname == '+'))
#endif

		    )
	    {
		// The delete is going to overwrite the register we want to
		// put, save it first.
		reg1 = get_register(regname, TRUE);
	    }

	    // Now delete the selected text. Avoid messages here.
	    cap->cmdchar = 'd';
	    cap->nchar = NUL;
	    cap->oap->regname = keep_registers ? '_' : NUL;
	    ++msg_silent;
	    nv_operator(cap);
	    do_pending_operator(cap, 0, FALSE);
	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
	    --msg_silent;

	    // delete PUT_LINE_BACKWARD;
	    cap->oap->regname = regname;

	    if (reg1 != NULL)
	    {
		// Delete probably changed the register we want to put, save
		// it first. Then put back what was there before the delete.
		reg2 = get_register(regname, FALSE);
		put_register(regname, reg1);
	    }

	    // When deleted a linewise Visual area, put the register as
	    // lines to avoid it joined with the next line.  When deletion was
	    // characterwise, split a line when putting lines.
	    if (VIsual_mode == 'V')
		flags |= PUT_LINE;
	    else if (VIsual_mode == 'v')
		flags |= PUT_LINE_SPLIT;
	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
		flags |= PUT_LINE_FORWARD;
	    dir = BACKWARD;
	    if ((VIsual_mode != 'V'
			&& curwin->w_cursor.col < curbuf->b_op_start.col)
		    || (VIsual_mode == 'V'
			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
		// cursor is at the end of the line or end of file, put
		// forward.
		dir = FORWARD;
	    // May have been reset in do_put().
	    VIsual_active = TRUE;
	}
	do_put(cap->oap->regname, NULL, dir, cap->count1, flags);

	// If a register was saved, put it back now.
	if (reg2 != NULL)
	    put_register(regname, reg2);

	// What to reselect with "gv"?  Selecting the just put text seems to
	// be the most useful, since the original text was removed.
	if (was_visual)
	{
	    curbuf->b_visual.vi_start = curbuf->b_op_start;
	    curbuf->b_visual.vi_end = curbuf->b_op_end;
	    // need to adjust cursor position
	    if (*p_sel == 'e')
		inc(&curbuf->b_visual.vi_end);
	}

	// When all lines were selected and deleted do_put() leaves an empty
	// line that needs to be deleted now.
	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
	{
	    ml_delete_flags(curbuf->b_ml.ml_line_count, ML_DEL_MESSAGE);
	    deleted_lines(curbuf->b_ml.ml_line_count + 1, 1);

	    // If the cursor was in that line, move it to the end of the last
	    // line.
	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
	    {
		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
		coladvance((colnr_T)MAXCOL);
	    }
	}
	auto_format(FALSE, TRUE);
    }
}


add_to_showcmd_c(int c)
{
    if (!add_to_showcmd(c))
	setcursor();
}


nv_findpar(cmdarg_T *cap)
{
    cap->oap->motion_type = MCHAR;
    cap->oap->inclusive = FALSE;
    cap->oap->use_reg_one = TRUE;
    curwin->w_set_curswant = TRUE;
    if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, FALSE))
	clearopbeep(cap->oap);
    else
    {
	curwin->w_cursor.coladd = 0;
#ifdef FEAT_FOLDING
	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
	    foldOpenCursor();
#endif
    }
}


invoke_edit(
    cmdarg_T	*cap,
    int		repl,		// "r" or "gr" command
    int		cmd,
    int		startln)
{
    int		restart_edit_save = 0;

    // Complicated: When the user types "a<C-O>a" we don't want to do Insert
    // mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
    // it.
    if (repl || !stuff_empty())
	restart_edit_save = restart_edit;
    else
	restart_edit_save = 0;

    // Always reset "restart_edit", this is not a restarted edit.
    restart_edit = 0;

    if (edit(cmd, startln, cap->count1))
	cap->retval |= CA_COMMAND_BUSY;

    if (restart_edit == 0)
	restart_edit = restart_edit_save;
}


nv_bracket_block(cmdarg_T *cap, pos_T *old_pos)
{
    pos_T	new_pos = {0, 0, 0};
    pos_T	*pos = NULL;	    // init for GCC
    pos_T	prev_pos;
    long	n;
    int		findc;
    int		c;

    if (cap->nchar == '*')
	cap->nchar = '/';
    prev_pos.lnum = 0;
    if (cap->nchar == 'm' || cap->nchar == 'M')
    {
	if (cap->cmdchar == '[')
	    findc = '{';
	else
	    findc = '}';
	n = 9999;
    }
    else
    {
	findc = cap->nchar;
	n = cap->count1;
    }
    for ( ; n > 0; --n)
    {
	if ((pos = findmatchlimit(cap->oap, findc,
			(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
	{
	    if (new_pos.lnum == 0)	// nothing found
	    {
		if (cap->nchar != 'm' && cap->nchar != 'M')
		    clearopbeep(cap->oap);
	    }
	    else
		pos = &new_pos;	// use last one found
	    break;
	}
	prev_pos = new_pos;
	curwin->w_cursor = *pos;
	new_pos = *pos;
    }
    curwin->w_cursor = *old_pos;

    // Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
    // brought us to the match for "[m" and "]M" when inside a method.
    // Try finding the '{' or '}' we want to be at.
    // Also repeat for the given count.
    if (cap->nchar == 'm' || cap->nchar == 'M')
    {
	// norm is TRUE for "]M" and "[m"
	int	    norm = ((findc == '{') == (cap->nchar == 'm'));

	n = cap->count1;
	// found a match: we were inside a method
	if (prev_pos.lnum != 0)
	{
	    pos = &prev_pos;
	    curwin->w_cursor = prev_pos;
	    if (norm)
		--n;
	}
	else
	    pos = NULL;
	while (n > 0)
	{
	    for (;;)
	    {
		if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
		{
		    // if not found anything, that's an error
		    if (pos == NULL)
			clearopbeep(cap->oap);
		    n = 0;
		    break;
		}
		c = gchar_cursor();
		if (c == '{' || c == '}')
		{
		    // Must have found end/start of class: use it.
		    // Or found the place to be at.
		    if ((c == findc && norm) || (n == 1 && !norm))
		    {
			new_pos = curwin->w_cursor;
			pos = &new_pos;
			n = 0;
		    }
		    // if no match found at all, we started outside of the
		    // class and we're inside now.  Just go on.
		    else if (new_pos.lnum == 0)
		    {
			new_pos = curwin->w_cursor;
			pos = &new_pos;
		    }
		    // found start/end of other method: go to match
		    else if ((pos = findmatchlimit(cap->oap, findc,
			      (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
								   0)) == NULL)
			n = 0;
		    else
			curwin->w_cursor = *pos;
		    break;
		}
	    }
	    --n;
	}
	curwin->w_cursor = *old_pos;
	if (pos == NULL && new_pos.lnum != 0)
	    clearopbeep(cap->oap);
    }
    if (pos != NULL)
    {
	setpcmark();
	curwin->w_cursor = *pos;
	curwin->w_set_curswant = TRUE;
#ifdef FEAT_FOLDING
	if ((fdo_flags & FDO_BLOCK) && KeyTyped
		&& cap->oap->op_type == OP_NOP)
	    foldOpenCursor();
#endif
    }
}


nv_pcmark(cmdarg_T *cap)
{
    pos_T	*pos;
#ifdef FEAT_FOLDING
    linenr_T	lnum = curwin->w_cursor.lnum;
    int		old_KeyTyped = KeyTyped;    // getting file may reset it
#endif

    if (!checkclearopq(cap->oap))
    {
	if (cap->cmdchar == TAB && mod_mask == MOD_MASK_CTRL)
	{
	    if (goto_tabpage_lastused() == FAIL)
		clearopbeep(cap->oap);
	    return;
	}
	if (cap->cmdchar == 'g')
	    pos = movechangelist((int)cap->count1);
	else
	    pos = movemark((int)cap->count1);
	if (pos == (pos_T *)-1)		// jump to other file
	{
	    curwin->w_set_curswant = TRUE;
	    check_cursor();
	}
	else if (pos != NULL)		    // can jump
	    nv_cursormark(cap, FALSE, pos);
	else if (cap->cmdchar == 'g')
	{
	    if (curbuf->b_changelistlen == 0)
		emsg(_(e_changelist_is_empty));
	    else if (cap->count1 < 0)
		emsg(_(e_at_start_of_changelist));
	    else
		emsg(_(e_at_end_of_changelist));
	}
	else
	    clearopbeep(cap->oap);
# ifdef FEAT_FOLDING
	if (cap->oap->op_type == OP_NOP
		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
		&& (fdo_flags & FDO_MARK)
		&& old_KeyTyped)
	    foldOpenCursor();
# endif
    }
}


normal_cmd_get_more_chars(
	int	    idx_arg,
	cmdarg_T    *cap,
	int	    *need_flushbuf UNUSED)
{
    int		idx = idx_arg;
    int		c;
    int		*cp;
    int		repl = FALSE;	// get character for replace mode
    int		lit = FALSE;	// get extra character literally
    int		langmap_active = FALSE;    // using :lmap mappings
    int		lang;		// getting a text character
#ifdef HAVE_INPUT_METHOD
    int		save_smd;	// saved value of p_smd
#endif

    ++no_mapping;
    ++allow_keys;		// no mapping for nchar, but allow key codes
    // Don't generate a CursorHold event here, most commands can't handle
    // it, e.g., nv_replace(), nv_csearch().
    did_cursorhold = TRUE;
    if (cap->cmdchar == 'g')
    {
	/*
	 * For 'g' get the next character now, so that we can check for
	 * "gr", "g'" and "g`".
	 */
	cap->nchar = plain_vgetc();
	LANGMAP_ADJUST(cap->nchar, TRUE);
#ifdef FEAT_CMDL_INFO
	*need_flushbuf |= add_to_showcmd(cap->nchar);
#endif
	if (cap->nchar == 'r' || cap->nchar == '\'' || cap->nchar == '`'
		|| cap->nchar == Ctrl_BSL)
	{
	    cp = &cap->extra_char;	// need to get a third character
	    if (cap->nchar != 'r')
		lit = TRUE;			// get it literally
	    else
		repl = TRUE;		// get it in replace mode
	}
	else
	    cp = NULL;		// no third character needed
    }
    else
    {
	if (cap->cmdchar == 'r')		// get it in replace mode
	    repl = TRUE;
	cp = &cap->nchar;
    }
    lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));

    /*
     * Get a second or third character.
     */
    if (cp != NULL)
    {
	if (repl)
	{
	    State = MODE_REPLACE;	// pretend Replace mode
#ifdef CURSOR_SHAPE
	    ui_cursor_shape();	// show different cursor shape
#endif
	}
	if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
	{
	    // Allow mappings defined with ":lmap".
	    --no_mapping;
	    --allow_keys;
	    if (repl)
		State = MODE_LREPLACE;
	    else
		State = MODE_LANGMAP;
	    langmap_active = TRUE;
	}
#ifdef HAVE_INPUT_METHOD
	save_smd = p_smd;
	p_smd = FALSE;	// Don't let the IM code show the mode here
	if (lang && curbuf->b_p_iminsert == B_IMODE_IM)
	    im_set_active(TRUE);
#endif
	if ((State & MODE_INSERT) && !p_ek)
	{
#ifdef FEAT_JOB_CHANNEL
	    ch_log_output = TRUE;
#endif
	    // Disable bracketed paste and modifyOtherKeys here, we won't
	    // recognize the escape sequences with 'esckeys' off.
	    out_str(T_BD);
	    out_str(T_CTE);
	}

	*cp = plain_vgetc();

	if ((State & MODE_INSERT) && !p_ek)
	{
#ifdef FEAT_JOB_CHANNEL
	    ch_log_output = TRUE;
#endif
	    // Re-enable bracketed paste mode and modifyOtherKeys
	    out_str(T_BE);
	    out_str(T_CTI);
	}

	if (langmap_active)
	{
	    // Undo the decrement done above
	    ++no_mapping;
	    ++allow_keys;
	    State = MODE_NORMAL_BUSY;
	}
#ifdef HAVE_INPUT_METHOD
	if (lang)
	{
	    if (curbuf->b_p_iminsert != B_IMODE_LMAP)
		im_save_status(&curbuf->b_p_iminsert);
	    im_set_active(FALSE);
	}
	p_smd = save_smd;
#endif
	State = MODE_NORMAL_BUSY;
#ifdef FEAT_CMDL_INFO
	*need_flushbuf |= add_to_showcmd(*cp);
#endif

	if (!lit)
	{
#ifdef FEAT_DIGRAPHS
	    // Typing CTRL-K gets a digraph.
	    if (*cp == Ctrl_K
		    && ((nv_cmds[idx].cmd_flags & NV_LANG)
			|| cp == &cap->extra_char)
		    && vim_strchr(p_cpo, CPO_DIGRAPH) == NULL)
	    {
		c = get_digraph(FALSE);
		if (c > 0)
		{
		    *cp = c;
# ifdef FEAT_CMDL_INFO
		    // Guessing how to update showcmd here...
		    del_from_showcmd(3);
		    *need_flushbuf |= add_to_showcmd(*cp);
# endif
		}
	    }
#endif

	    // adjust chars > 127, except after "tTfFr" commands
	    LANGMAP_ADJUST(*cp, !lang);
#ifdef FEAT_RIGHTLEFT
	    // adjust Hebrew mapped char
	    if (p_hkmap && lang && KeyTyped)
		*cp = hkmap(*cp);
#endif
	}

	// When the next character is CTRL-\ a following CTRL-N means the
	// command is aborted and we go to Normal mode.
	if (cp == &cap->extra_char
		&& cap->nchar == Ctrl_BSL
		&& (cap->extra_char == Ctrl_N || cap->extra_char == Ctrl_G))
	{
	    cap->cmdchar = Ctrl_BSL;
	    cap->nchar = cap->extra_char;
	    idx = find_command(cap->cmdchar);
	}
	else if ((cap->nchar == 'n' || cap->nchar == 'N') && cap->cmdchar == 'g')
	    cap->oap->op_type = get_op_type(*cp, NUL);
	else if (*cp == Ctrl_BSL)
	{
	    long towait = (p_ttm >= 0 ? p_ttm : p_tm);

	    // There is a busy wait here when typing "f<C-\>" and then
	    // something different from CTRL-N.  Can't be avoided.
	    while ((c = vpeekc()) <= 0 && towait > 0L)
	    {
		do_sleep(towait > 50L ? 50L : towait, FALSE);
		towait -= 50L;
	    }
	    if (c > 0)
	    {
		c = plain_vgetc();
		if (c != Ctrl_N && c != Ctrl_G)
		    vungetc(c);
		else
		{
		    cap->cmdchar = Ctrl_BSL;
		    cap->nchar = c;
		    idx = find_command(cap->cmdchar);
		}
	    }
	}

	// When getting a text character and the next character is a
	// multi-byte character, it could be a composing character.
	// However, don't wait for it to arrive. Also, do enable mapping,
	// because if it's put back with vungetc() it's too late to apply
	// mapping.
	--no_mapping;
	while (enc_utf8 && lang && (c = vpeekc()) > 0
		&& (c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1))
	{
	    c = plain_vgetc();
	    if (!utf_iscomposing(c))
	    {
		vungetc(c);		// it wasn't, put it back
		break;
	    }
	    else if (cap->ncharC1 == 0)
		cap->ncharC1 = c;
	    else
		cap->ncharC2 = c;
	}
	++no_mapping;
    }
    --no_mapping;
    --allow_keys;

    return idx;
}


nv_put(cmdarg_T *cap)
{
    nv_put_opt(cap, FALSE);
}


nv_ctrlg(cmdarg_T *cap)
{
    if (VIsual_active)	// toggle Selection/Visual mode
    {
	VIsual_select = !VIsual_select;
	may_trigger_modechanged();
	showmode();
    }
    else if (!checkclearop(cap->oap))
	// print full name if count given or :cd used
	fileinfo((int)cap->count0, FALSE, TRUE);
}


nv_next(cmdarg_T *cap)
{
    pos_T   old = curwin->w_cursor;
    int	    wrapped = FALSE;
    int	    i = normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg, &wrapped);

    if (i == 1 && !wrapped && EQUAL_POS(old, curwin->w_cursor))
    {
	// Avoid getting stuck on the current cursor position, which can
	// happen when an offset is given and the cursor is on the last char
	// in the buffer: Repeat with count + 1.
	cap->count1 += 1;
	(void)normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg, NULL);
	cap->count1 -= 1;
    }

#ifdef FEAT_SEARCH_EXTRA
    // Redraw the window to refresh the highlighted matches.
    if (i > 0 && p_hls && !no_hlsearch)
	redraw_later(SOME_VALID);
#endif
}


scroll_redraw(int up, long count)
{
    linenr_T	prev_topline = curwin->w_topline;
#ifdef FEAT_DIFF
    int		prev_topfill = curwin->w_topfill;
#endif
    linenr_T	prev_lnum = curwin->w_cursor.lnum;

    if (up)
	scrollup(count, TRUE);
    else
	scrolldown(count, TRUE);
    if (get_scrolloff_value())
    {
	// Adjust the cursor position for 'scrolloff'.  Mark w_topline as
	// valid, otherwise the screen jumps back at the end of the file.
	cursor_correct();
	check_cursor_moved(curwin);
	curwin->w_valid |= VALID_TOPLINE;

	// If moved back to where we were, at least move the cursor, otherwise
	// we get stuck at one position.  Don't move the cursor up if the
	// first line of the buffer is already on the screen
	while (curwin->w_topline == prev_topline
#ifdef FEAT_DIFF
		&& curwin->w_topfill == prev_topfill
#endif
		)
	{
	    if (up)
	    {
		if (curwin->w_cursor.lnum > prev_lnum
			|| cursor_down(1L, FALSE) == FAIL)
		    break;
	    }
	    else
	    {
		if (curwin->w_cursor.lnum < prev_lnum
			|| prev_topline == 1L
			|| cursor_up(1L, FALSE) == FAIL)
		    break;
	    }
	    // Mark w_topline as valid, otherwise the screen jumps back at the
	    // end of the file.
	    check_cursor_moved(curwin);
	    curwin->w_valid |= VALID_TOPLINE;
	}
    }
    if (curwin->w_cursor.lnum != prev_lnum)
	coladvance(curwin->w_curswant);
    redraw_later(VALID);
}


nv_zet(cmdarg_T *cap)
{
    long	n;
    colnr_T	col;
    int		nchar = cap->nchar;
#ifdef FEAT_FOLDING
    long	old_fdl = curwin->w_p_fdl;
    int		old_fen = curwin->w_p_fen;
#endif
    long	siso = get_sidescrolloff_value();

    if (VIM_ISDIGIT(nchar) && !nv_z_get_count(cap, &nchar))
	    return;

    if (
#ifdef FEAT_FOLDING
	    // "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
	    // and "zC" only in Visual mode.  "zj" and "zk" are motion
	    // commands.
	    cap->nchar != 'f' && cap->nchar != 'F'
	    && !(VIsual_active && vim_strchr((char_u *)"dcCoO", cap->nchar))
	    && cap->nchar != 'j' && cap->nchar != 'k'
	    &&
#endif
	    checkclearop(cap->oap))
	return;

    // For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
    // If line number given, set cursor.
    if ((vim_strchr((char_u *)"+\r\nt.z^-b", nchar) != NULL)
	    && cap->count0
	    && cap->count0 != curwin->w_cursor.lnum)
    {
	setpcmark();
	if (cap->count0 > curbuf->b_ml.ml_line_count)
	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
	else
	    curwin->w_cursor.lnum = cap->count0;
	check_cursor_col();
    }

    switch (nchar)
    {
		// "z+", "z<CR>" and "zt": put cursor at top of screen
    case '+':
		if (cap->count0 == 0)
		{
		    // No count given: put cursor at the line below screen
		    validate_botline();	// make sure w_botline is valid
		    if (curwin->w_botline > curbuf->b_ml.ml_line_count)
			curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
		    else
			curwin->w_cursor.lnum = curwin->w_botline;
		}
		// FALLTHROUGH
    case NL:
    case CAR:
    case K_KENTER:
		beginline(BL_WHITE | BL_FIX);
		// FALLTHROUGH

    case 't':	scroll_cursor_top(0, TRUE);
		redraw_later(VALID);
		set_fraction(curwin);
		break;

		// "z." and "zz": put cursor in middle of screen
    case '.':	beginline(BL_WHITE | BL_FIX);
		// FALLTHROUGH

    case 'z':	scroll_cursor_halfway(TRUE);
		redraw_later(VALID);
		set_fraction(curwin);
		break;

		// "z^", "z-" and "zb": put cursor at bottom of screen
    case '^':	// Strange Vi behavior: <count>z^ finds line at top of window
		// when <count> is at bottom of window, and puts that one at
		// bottom of window.
		if (cap->count0 != 0)
		{
		    scroll_cursor_bot(0, TRUE);
		    curwin->w_cursor.lnum = curwin->w_topline;
		}
		else if (curwin->w_topline == 1)
		    curwin->w_cursor.lnum = 1;
		else
		    curwin->w_cursor.lnum = curwin->w_topline - 1;
		// FALLTHROUGH
    case '-':
		beginline(BL_WHITE | BL_FIX);
		// FALLTHROUGH

    case 'b':	scroll_cursor_bot(0, TRUE);
		redraw_later(VALID);
		set_fraction(curwin);
		break;

		// "zH" - scroll screen right half-page
    case 'H':
		cap->count1 *= curwin->w_width / 2;
		// FALLTHROUGH

		// "zh" - scroll screen to the right
    case 'h':
    case K_LEFT:
		if (!curwin->w_p_wrap)
		{
		    if ((colnr_T)cap->count1 > curwin->w_leftcol)
			curwin->w_leftcol = 0;
		    else
			curwin->w_leftcol -= (colnr_T)cap->count1;
		    leftcol_changed();
		}
		break;

		// "zL" - scroll screen left half-page
    case 'L':	cap->count1 *= curwin->w_width / 2;
		// FALLTHROUGH

		// "zl" - scroll screen to the left
    case 'l':
    case K_RIGHT:
		if (!curwin->w_p_wrap)
		{
		    // scroll the window left
		    curwin->w_leftcol += (colnr_T)cap->count1;
		    leftcol_changed();
		}
		break;

		// "zs" - scroll screen, cursor at the start
    case 's':	if (!curwin->w_p_wrap)
		{
#ifdef FEAT_FOLDING
		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
			col = 0;	// like the cursor is in col 0
		    else
#endif
		    getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
		    if ((long)col > siso)
			col -= siso;
		    else
			col = 0;
		    if (curwin->w_leftcol != col)
		    {
			curwin->w_leftcol = col;
			redraw_later(NOT_VALID);
		    }
		}
		break;

		// "ze" - scroll screen, cursor at the end
    case 'e':	if (!curwin->w_p_wrap)
		{
#ifdef FEAT_FOLDING
		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
			col = 0;	// like the cursor is in col 0
		    else
#endif
		    getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
		    n = curwin->w_width - curwin_col_off();
		    if ((long)col + siso < n)
			col = 0;
		    else
			col = col + siso - n + 1;
		    if (curwin->w_leftcol != col)
		    {
			curwin->w_leftcol = col;
			redraw_later(NOT_VALID);
		    }
		}
		break;

		// "zp", "zP" in block mode put without addind trailing spaces
    case 'P':
    case 'p':  nv_put(cap);
	       break;
		// "zy" Yank without trailing spaces
    case 'y':  nv_operator(cap);
	       break;
#ifdef FEAT_FOLDING
		// "zF": create fold command
		// "zf": create fold operator
    case 'F':
    case 'f':   if (foldManualAllowed(TRUE))
		{
		    cap->nchar = 'f';
		    nv_operator(cap);
		    curwin->w_p_fen = TRUE;

		    // "zF" is like "zfzf"
		    if (nchar == 'F' && cap->oap->op_type == OP_FOLD)
		    {
			nv_operator(cap);
			finish_op = TRUE;
		    }
		}
		else
		    clearopbeep(cap->oap);
		break;

		// "zd": delete fold at cursor
		// "zD": delete fold at cursor recursively
    case 'd':
    case 'D':	if (foldManualAllowed(FALSE))
		{
		    if (VIsual_active)
			nv_operator(cap);
		    else
			deleteFold(curwin->w_cursor.lnum,
				  curwin->w_cursor.lnum, nchar == 'D', FALSE);
		}
		break;

		// "zE": erase all folds
    case 'E':	if (foldmethodIsManual(curwin))
		{
		    clearFolding(curwin);
		    changed_window_setting();
		}
		else if (foldmethodIsMarker(curwin))
		    deleteFold((linenr_T)1, curbuf->b_ml.ml_line_count,
								 TRUE, FALSE);
		else
		    emsg(_(e_cannot_erase_folds_with_current_foldmethod));
		break;

		// "zn": fold none: reset 'foldenable'
    case 'n':	curwin->w_p_fen = FALSE;
		break;

		// "zN": fold Normal: set 'foldenable'
    case 'N':	curwin->w_p_fen = TRUE;
		break;

		// "zi": invert folding: toggle 'foldenable'
    case 'i':	curwin->w_p_fen = !curwin->w_p_fen;
		break;

		// "za": open closed fold or close open fold at cursor
    case 'a':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
		    openFold(curwin->w_cursor.lnum, cap->count1);
		else
		{
		    closeFold(curwin->w_cursor.lnum, cap->count1);
		    curwin->w_p_fen = TRUE;
		}
		break;

		// "zA": open fold at cursor recursively
    case 'A':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
		    openFoldRecurse(curwin->w_cursor.lnum);
		else
		{
		    closeFoldRecurse(curwin->w_cursor.lnum);
		    curwin->w_p_fen = TRUE;
		}
		break;

		// "zo": open fold at cursor or Visual area
    case 'o':	if (VIsual_active)
		    nv_operator(cap);
		else
		    openFold(curwin->w_cursor.lnum, cap->count1);
		break;

		// "zO": open fold recursively
    case 'O':	if (VIsual_active)
		    nv_operator(cap);
		else
		    openFoldRecurse(curwin->w_cursor.lnum);
		break;

		// "zc": close fold at cursor or Visual area
    case 'c':	if (VIsual_active)
		    nv_operator(cap);
		else
		    closeFold(curwin->w_cursor.lnum, cap->count1);
		curwin->w_p_fen = TRUE;
		break;

		// "zC": close fold recursively
    case 'C':	if (VIsual_active)
		    nv_operator(cap);
		else
		    closeFoldRecurse(curwin->w_cursor.lnum);
		curwin->w_p_fen = TRUE;
		break;

		// "zv": open folds at the cursor
    case 'v':	foldOpenCursor();
		break;

		// "zx": re-apply 'foldlevel' and open folds at the cursor
    case 'x':	curwin->w_p_fen = TRUE;
		curwin->w_foldinvalid = TRUE;	// recompute folds
		newFoldLevel();			// update right now
		foldOpenCursor();
		break;

		// "zX": undo manual opens/closes, re-apply 'foldlevel'
    case 'X':	curwin->w_p_fen = TRUE;
		curwin->w_foldinvalid = TRUE;	// recompute folds
		old_fdl = -1;			// force an update
		break;

		// "zm": fold more
    case 'm':	if (curwin->w_p_fdl > 0)
		{
		    curwin->w_p_fdl -= cap->count1;
		    if (curwin->w_p_fdl < 0)
			curwin->w_p_fdl = 0;
		}
		old_fdl = -1;		// force an update
		curwin->w_p_fen = TRUE;
		break;

		// "zM": close all folds
    case 'M':	curwin->w_p_fdl = 0;
		old_fdl = -1;		// force an update
		curwin->w_p_fen = TRUE;
		break;

		// "zr": reduce folding
    case 'r':	curwin->w_p_fdl += cap->count1;
		{
		    int d = getDeepestNesting();

		    if (curwin->w_p_fdl >= d)
			curwin->w_p_fdl = d;
		}
		break;

		// "zR": open all folds
    case 'R':	curwin->w_p_fdl = getDeepestNesting();
		old_fdl = -1;		// force an update
		break;

    case 'j':	// "zj" move to next fold downwards
    case 'k':	// "zk" move to next fold upwards
		if (foldMoveTo(TRUE, nchar == 'j' ? FORWARD : BACKWARD,
							  cap->count1) == FAIL)
		    clearopbeep(cap->oap);
		break;

#endif // FEAT_FOLDING

#ifdef FEAT_SPELL
    case 'u':	// "zug" and "zuw": undo "zg" and "zw"
    case 'g':	// "zg": add good word to word list
    case 'w':	// "zw": add wrong word to word list
    case 'G':	// "zG": add good word to temp word list
    case 'W':	// "zW": add wrong word to temp word list
		if (nv_zg_zw(cap, nchar) == FAIL)
		    return;
		break;

    case '=':	// "z=": suggestions for a badly spelled word
		if (!checkclearop(cap->oap))
		    spell_suggest((int)cap->count0);
		break;
#endif

    default:	clearopbeep(cap->oap);
    }

#ifdef FEAT_FOLDING
    // Redraw when 'foldenable' changed
    if (old_fen != curwin->w_p_fen)
    {
# ifdef FEAT_DIFF
	win_T	    *wp;

	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
	{
	    // Adjust 'foldenable' in diff-synced windows.
	    FOR_ALL_WINDOWS(wp)
	    {
		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
		{
		    wp->w_p_fen = curwin->w_p_fen;
		    changed_window_setting_win(wp);
		}
	    }
	}
# endif
	changed_window_setting();
    }

    // Redraw when 'foldlevel' changed.
    if (old_fdl != curwin->w_p_fdl)
	newFoldLevel();
#endif
}


n_start_visual_mode(int c)
{
#ifdef FEAT_CONCEAL
    int cursor_line_was_concealed = curwin->w_p_cole > 0
						&& conceal_cursor_line(curwin);
#endif

    VIsual_mode = c;
    VIsual_active = TRUE;
    VIsual_reselect = TRUE;

    // Corner case: the 0 position in a tab may change when going into
    // virtualedit.  Recalculate curwin->w_cursor to avoid bad highlighting.
    if (c == Ctrl_V && (get_ve_flags() & VE_BLOCK) && gchar_cursor() == TAB)
    {
	validate_virtcol();
	coladvance(curwin->w_virtcol);
    }
    VIsual = curwin->w_cursor;

#ifdef FEAT_FOLDING
    foldAdjustVisual();
#endif

    may_trigger_modechanged();
    setmouse();
#ifdef FEAT_CONCEAL
    // Check if redraw is needed after changing the state.
    conceal_check_cursor_line(cursor_line_was_concealed);
#endif

    if (p_smd && msg_silent == 0)
	redraw_cmdline = TRUE;	// show visual mode later
#ifdef FEAT_CLIPBOARD
    // Make sure the clipboard gets updated.  Needed because start and
    // end may still be the same, and the selection needs to be owned
    clip_star.vmode = NUL;
#endif

    // Only need to redraw this line, unless still need to redraw an old
    // Visual area (when 'lazyredraw' is set).
    if (curwin->w_redr_type < INVERTED)
    {
	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
    }
}


handle_tabmenu(void)
{
    switch (current_tabmenu)
    {
	case TABLINE_MENU_CLOSE:
	    if (current_tab == 0)
		do_cmdline_cmd((char_u *)"tabclose");
	    else
	    {
		vim_snprintf((char *)IObuff, IOSIZE, "tabclose %d",
								 current_tab);
		do_cmdline_cmd(IObuff);
	    }
	    break;

	case TABLINE_MENU_NEW:
	    if (current_tab == 0)
		do_cmdline_cmd((char_u *)"$tabnew");
	    else
	    {
		vim_snprintf((char *)IObuff, IOSIZE, "%dtabnew",
							     current_tab - 1);
		do_cmdline_cmd(IObuff);
	    }
	    break;

	case TABLINE_MENU_OPEN:
	    if (current_tab == 0)
		do_cmdline_cmd((char_u *)"browse $tabnew");
	    else
	    {
		vim_snprintf((char *)IObuff, IOSIZE, "browse %dtabnew",
							     current_tab - 1);
		do_cmdline_cmd(IObuff);
	    }
	    break;
    }
}


nv_vreplace(cmdarg_T *cap)
{
    if (VIsual_active)
    {
	cap->cmdchar = 'r';
	cap->nchar = cap->extra_char;
	nv_replace(cap);	// Do same as "r" in Visual mode for now
    }
    else if (!checkclearopq(cap->oap))
    {
	if (!curbuf->b_p_ma)
	    emsg(_(e_cannot_make_changes_modifiable_is_off));
	else
	{
	    if (cap->extra_char == Ctrl_V)	// get another character
		cap->extra_char = get_literal(FALSE);
	    stuffcharReadbuff(cap->extra_char);
	    stuffcharReadbuff(ESC);
	    if (virtual_active())
		coladvance(getviscol());
	    invoke_edit(cap, TRUE, 'v', FALSE);
	}
    }
}


nv_scroll_line(cmdarg_T *cap)
{
    if (!checkclearop(cap->oap))
	scroll_redraw(cap->arg, cap->count1);
}


nv_bck_word(cmdarg_T *cap)
{
    cap->oap->motion_type = MCHAR;
    cap->oap->inclusive = FALSE;
    curwin->w_set_curswant = TRUE;
    if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
	clearopbeep(cap->oap);
#ifdef FEAT_FOLDING
    else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
	foldOpenCursor();
#endif
}


nv_ctrlo(cmdarg_T *cap)
{
    if (VIsual_active && VIsual_select)
    {
	VIsual_select = FALSE;
	may_trigger_modechanged();
	showmode();
	restart_VIsual_select = 2;	// restart Select mode later
    }
    else
    {
	cap->count1 = -cap->count1;
	nv_pcmark(cap);
    }
}


normal_cmd_wait_for_msg(void)
{
    int	save_State = State;

    // Draw the cursor with the right shape here
    if (restart_edit != 0)
	State = MODE_INSERT;

    // If need to redraw, and there is a "keep_msg", redraw before the
    // delay
    if (must_redraw && keep_msg != NULL && !emsg_on_display)
    {
	char_u	*kmsg;

	kmsg = keep_msg;
	keep_msg = NULL;
	// Showmode() will clear keep_msg, but we want to use it anyway.
	// First update w_topline.
	setcursor();
	update_screen(0);
	// now reset it, otherwise it's put in the history again
	keep_msg = kmsg;

	kmsg = vim_strsave(keep_msg);
	if (kmsg != NULL)
	{
	    msg_attr((char *)kmsg, keep_msg_attr);
	    vim_free(kmsg);
	}
    }
    setcursor();
#ifdef CURSOR_SHAPE
    ui_cursor_shape();		// may show different cursor shape
#endif
    cursor_on();
    out_flush();
    if (msg_scroll || emsg_on_display)
	ui_delay(1003L, TRUE);	// wait at least one second
    ui_delay(3003L, FALSE);		// wait up to three seconds
    State = save_State;

    msg_scroll = FALSE;
    emsg_on_display = FALSE;
}


nv_g_dollar_cmd(cmdarg_T *cap)
{
    oparg_T	*oap = cap->oap;
    int		i;
    int		col_off = curwin_col_off();

    oap->motion_type = MCHAR;
    oap->inclusive = TRUE;
    if (curwin->w_p_wrap && curwin->w_width != 0)
    {
	curwin->w_curswant = MAXCOL;    // so we stay at the end
	if (cap->count1 == 1)
	{
	    int		width1 = curwin->w_width - col_off;
	    int		width2 = width1 + curwin_col_off2();

	    validate_virtcol();
	    i = width1 - 1;
	    if (curwin->w_virtcol >= (colnr_T)width1)
		i += ((curwin->w_virtcol - width1) / width2 + 1)
		    * width2;
	    coladvance((colnr_T)i);

	    // Make sure we stick in this column.
	    validate_virtcol();
	    curwin->w_curswant = curwin->w_virtcol;
	    curwin->w_set_curswant = FALSE;
	    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
	    {
		// Check for landing on a character that got split at
		// the end of the line.  We do not want to advance to
		// the next screen line.
		if (curwin->w_virtcol > (colnr_T)i)
		    --curwin->w_cursor.col;
	    }
	}
	else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
	    clearopbeep(oap);
    }
    else
    {
	if (cap->count1 > 1)
	    // if it fails, let the cursor still move to the last char
	    (void)cursor_down(cap->count1 - 1, FALSE);

	i = curwin->w_leftcol + curwin->w_width - col_off - 1;
	coladvance((colnr_T)i);

	// if the character doesn't fit move one back
	if (curwin->w_cursor.col > 0
		&& (*mb_ptr2cells)(ml_get_cursor()) > 1)
	{
	    colnr_T vcol;

	    getvvcol(curwin, &curwin->w_cursor, NULL, NULL, &vcol);
	    if (vcol >= curwin->w_leftcol + curwin->w_width - col_off)
		--curwin->w_cursor.col;
	}

	// Make sure we stick in this column.
	validate_virtcol();
	curwin->w_curswant = curwin->w_virtcol;
	curwin->w_set_curswant = FALSE;
    }
}


nv_kundo(cmdarg_T *cap)
{
    if (!checkclearopq(cap->oap))
    {
#ifdef FEAT_JOB_CHANNEL
	if (bt_prompt(curbuf))
	{
	    clearopbeep(cap->oap);
	    return;
	}
#endif
	u_undo((int)cap->count1);
	curwin->w_set_curswant = TRUE;
    }
}


nv_at(cmdarg_T *cap)
{
    if (checkclearop(cap->oap))
	return;
#ifdef FEAT_EVAL
    if (cap->nchar == '=')
    {
	if (get_expr_register() == NUL)
	    return;
    }
#endif
    while (cap->count1-- && !got_int)
    {
	if (do_execreg(cap->nchar, FALSE, FALSE, FALSE) == FAIL)
	{
	    clearopbeep(cap->oap);
	    break;
	}
	line_breakcheck();
    }
}


add_to_showcmd(int c)
{
    char_u	*p;
    int		old_len;
    int		extra_len;
    int		overflow;
    int		i;
    static int	ignore[] =
    {
#ifdef FEAT_GUI
	K_VER_SCROLLBAR, K_HOR_SCROLLBAR,
	K_LEFTMOUSE_NM, K_LEFTRELEASE_NM,
#endif
	K_IGNORE, K_PS,
	K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE, K_MOUSEMOVE,
	K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
	K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
	K_MOUSEDOWN, K_MOUSEUP, K_MOUSELEFT, K_MOUSERIGHT,
	K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
	K_CURSORHOLD,
	0
    };

    if (!p_sc || msg_silent != 0)
	return FALSE;

    if (showcmd_visual)
    {
	showcmd_buf[0] = NUL;
	showcmd_visual = FALSE;
    }

    // Ignore keys that are scrollbar updates and mouse clicks
    if (IS_SPECIAL(c))
	for (i = 0; ignore[i] != 0; ++i)
	    if (ignore[i] == c)
		return FALSE;

    p = transchar(c);
    if (*p == ' ')
	STRCPY(p, "<20>");
    old_len = (int)STRLEN(showcmd_buf);
    extra_len = (int)STRLEN(p);
    overflow = old_len + extra_len - SHOWCMD_COLS;
    if (overflow > 0)
	mch_memmove(showcmd_buf, showcmd_buf + overflow,
						      old_len - overflow + 1);
    STRCAT(showcmd_buf, p);

    if (char_avail())
	return FALSE;

    display_showcmd();

    return TRUE;
}


unadjust_for_sel(void)
{
    pos_T	*pp;

    if (*p_sel == 'e' && !EQUAL_POS(VIsual, curwin->w_cursor))
    {
	if (LT_POS(VIsual, curwin->w_cursor))
	    pp = &curwin->w_cursor;
	else
	    pp = &VIsual;
	if (pp->coladd > 0)
	    --pp->coladd;
	else
	if (pp->col > 0)
	{
	    --pp->col;
	    mb_adjustpos(curbuf, pp);
	}
	else if (pp->lnum > 1)
	{
	    --pp->lnum;
	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
	    return TRUE;
	}
    }
    return FALSE;
}


normal_cmd_need_to_wait_for_msg(cmdarg_T *cap, pos_T *old_pos)
{
    // In Visual mode and with "^O" in Insert mode, a short message will be
    // overwritten by the mode message.  Wait a bit, until a key is hit.
    // In Visual mode, it's more important to keep the Visual area updated
    // than keeping a message (e.g. from a /pat search).
    // Only do this if the command was typed, not from a mapping.
    // Don't wait when emsg_silent is non-zero.
    // Also wait a bit after an error message, e.g. for "^O:".
    // Don't redraw the screen, it would remove the message.
    return (       ((p_smd
		    && msg_silent == 0
		    && (restart_edit != 0
			|| (VIsual_active
			    && old_pos->lnum == curwin->w_cursor.lnum
			    && old_pos->col == curwin->w_cursor.col)
		       )
		    && (clear_cmdline
			|| redraw_cmdline)
		    && (msg_didout || (msg_didany && msg_scroll))
		    && !msg_nowait
		    && KeyTyped)
		|| (restart_edit != 0
		    && !VIsual_active
		    && (msg_scroll
			|| emsg_on_display)))
	    && cap->oap->regname == 0
	    && !(cap->retval & CA_COMMAND_BUSY)
	    && stuff_empty()
	    && typebuf_typed()
	    && emsg_silent == 0
	    && !in_assert_fails
	    && !did_wait_return
	    && cap->oap->op_type == OP_NOP);
}


nv_object(
    cmdarg_T	*cap)
{
    int		flag;
    int		include;
    char_u	*mps_save;

    if (cap->cmdchar == 'i')
	include = FALSE;    // "ix" = inner object: exclude white space
    else
	include = TRUE;	    // "ax" = an object: include white space

    // Make sure (), [], {} and <> are in 'matchpairs'
    mps_save = curbuf->b_p_mps;
    curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";

    switch (cap->nchar)
    {
	case 'w': // "aw" = a word
		flag = current_word(cap->oap, cap->count1, include, FALSE);
		break;
	case 'W': // "aW" = a WORD
		flag = current_word(cap->oap, cap->count1, include, TRUE);
		break;
	case 'b': // "ab" = a braces block
	case '(':
	case ')':
		flag = current_block(cap->oap, cap->count1, include, '(', ')');
		break;
	case 'B': // "aB" = a Brackets block
	case '{':
	case '}':
		flag = current_block(cap->oap, cap->count1, include, '{', '}');
		break;
	case '[': // "a[" = a [] block
	case ']':
		flag = current_block(cap->oap, cap->count1, include, '[', ']');
		break;
	case '<': // "a<" = a <> block
	case '>':
		flag = current_block(cap->oap, cap->count1, include, '<', '>');
		break;
	case 't': // "at" = a tag block (xml and html)
		// Do not adjust oap->end in do_pending_operator()
		// otherwise there are different results for 'dit'
		// (note leading whitespace in last line):
		// 1) <b>      2) <b>
		//    foobar      foobar
		//    </b>            </b>
		cap->retval |= CA_NO_ADJ_OP_END;
		flag = current_tagblock(cap->oap, cap->count1, include);
		break;
	case 'p': // "ap" = a paragraph
		flag = current_par(cap->oap, cap->count1, include, 'p');
		break;
	case 's': // "as" = a sentence
		flag = current_sent(cap->oap, cap->count1, include);
		break;
	case '"': // "a"" = a double quoted string
	case '\'': // "a'" = a single quoted string
	case '`': // "a`" = a backtick quoted string
		flag = current_quote(cap->oap, cap->count1, include,
								  cap->nchar);
		break;
#if 0	// TODO
	case 'S': // "aS" = a section
	case 'f': // "af" = a filename
	case 'u': // "au" = a URL
#endif
	default:
		flag = FAIL;
		break;
    }

    curbuf->b_p_mps = mps_save;
    if (flag == FAIL)
	clearopbeep(cap->oap);
    adjust_cursor_col();
    curwin->w_set_curswant = TRUE;
}


nv_operator(cmdarg_T *cap)
{
    int	    op_type;

    op_type = get_op_type(cap->cmdchar, cap->nchar);
#ifdef FEAT_JOB_CHANNEL
    if (bt_prompt(curbuf) && op_is_change(op_type) && !prompt_curpos_editable())
    {
	clearopbeep(cap->oap);
	return;
    }
#endif

    if (op_type == cap->oap->op_type)	    // double operator works on lines
	nv_lineop(cap);
    else if (!checkclearop(cap->oap))
    {
	cap->oap->start = curwin->w_cursor;
	cap->oap->op_type = op_type;
#ifdef FEAT_EVAL
	set_op_var(op_type);
#endif
    }
}


nv_redo_or_register(cmdarg_T *cap)
{
    if (VIsual_select && VIsual_active)
    {
	int reg;
	// Get register name
	++no_mapping;
	++allow_keys;
	reg = plain_vgetc();
	LANGMAP_ADJUST(reg, TRUE);
	--no_mapping;
	--allow_keys;

	if (reg == '"')
	    // the unnamed register is 0
	    reg = 0;

	VIsual_select_reg = valid_yank_reg(reg, TRUE) ? reg : 0;
	return;
    }

    if (!checkclearopq(cap->oap))
    {
	u_redo((int)cap->count1);
	curwin->w_set_curswant = TRUE;
    }
}


nv_hor_scrollbar(cmdarg_T *cap)
{
    if (cap->oap->op_type != OP_NOP)
	clearopbeep(cap->oap);

    // Even if an operator was pending, we still want to scroll
    gui_do_horiz_scroll(scrollbar_value, FALSE);
}


nv_zg_zw(cmdarg_T *cap, int nchar)
{
    char_u	*ptr = NULL;
    int		len;
    int		undo = FALSE;

    if (nchar == 'u')
    {
	++no_mapping;
	++allow_keys;   // no mapping for nchar, but allow key codes
	nchar = plain_vgetc();
	LANGMAP_ADJUST(nchar, TRUE);
	--no_mapping;
	--allow_keys;
#ifdef FEAT_CMDL_INFO
	(void)add_to_showcmd(nchar);
#endif
	if (vim_strchr((char_u *)"gGwW", nchar) == NULL)
	{
	    clearopbeep(cap->oap);
	    return OK;
	}
	undo = TRUE;
    }

    if (checkclearop(cap->oap))
	return OK;
    if (VIsual_active && get_visual_text(cap, &ptr, &len) == FAIL)
	return FAIL;
    if (ptr == NULL)
    {
	pos_T	pos = curwin->w_cursor;

	// Find bad word under the cursor.  When 'spell' is
	// off this fails and find_ident_under_cursor() is
	// used below.
	emsg_off++;
	len = spell_move_to(curwin, FORWARD, TRUE, TRUE, NULL);
	emsg_off--;
	if (len != 0 && curwin->w_cursor.col <= pos.col)
	    ptr = ml_get_pos(&curwin->w_cursor);
	curwin->w_cursor = pos;
    }

    if (ptr == NULL
		&& (len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
	return FAIL;
    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W'
	    ? SPELL_ADD_BAD : SPELL_ADD_GOOD,
	    (nchar == 'G' || nchar == 'W') ? 0 : (int)cap->count1, undo);

    return OK;
}


nv_hat(cmdarg_T *cap)
{
    if (!checkclearopq(cap->oap))
	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
						GETF_SETMARK|GETF_ALT, FALSE);
}


n_opencmd(cmdarg_T *cap)
{
#ifdef FEAT_CONCEAL
    linenr_T	oldline = curwin->w_cursor.lnum;
#endif

    if (!checkclearopq(cap->oap))
    {
#ifdef FEAT_FOLDING
	if (cap->cmdchar == 'O')
	    // Open above the first line of a folded sequence of lines
	    (void)hasFolding(curwin->w_cursor.lnum,
						&curwin->w_cursor.lnum, NULL);
	else
	    // Open below the last line of a folded sequence of lines
	    (void)hasFolding(curwin->w_cursor.lnum,
						NULL, &curwin->w_cursor.lnum);
#endif
	if (u_save((linenr_T)(curwin->w_cursor.lnum -
					       (cap->cmdchar == 'O' ? 1 : 0)),
		   (linenr_T)(curwin->w_cursor.lnum +
					       (cap->cmdchar == 'o' ? 1 : 0))
		       ) == OK
		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
			 has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM : 0,
								0, NULL) == OK)
	{
#ifdef FEAT_CONCEAL
	    if (curwin->w_p_cole > 0 && oldline != curwin->w_cursor.lnum)
		redrawWinline(curwin, oldline);
#endif
#ifdef FEAT_SYN_HL
	    if (curwin->w_p_cul)
		// force redraw of cursorline
		curwin->w_valid &= ~VALID_CROW;
#endif
	    // When '#' is in 'cpoptions' ignore the count.
	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
		cap->count1 = 1;
	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
	}
    }
}


start_selection(void)
{
    // if 'selectmode' contains "key", start Select mode
    may_start_select('k');
    n_start_visual_mode('v');
}


checkclearop(oparg_T *oap)
{
    if (oap->op_type == OP_NOP)
	return FALSE;
    clearopbeep(oap);
    return TRUE;
}


nv_beginline(cmdarg_T *cap)
{
    cap->oap->motion_type = MCHAR;
    cap->oap->inclusive = FALSE;
    beginline(cap->arg);
#ifdef FEAT_FOLDING
    if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
	foldOpenCursor();
#endif
    ins_at_eol = FALSE;	    // Don't move cursor past eol (only necessary in a
			    // one-character line).
}


do_nv_ident(int c1, int c2)
{
    oparg_T	oa;
    cmdarg_T	ca;

    clear_oparg(&oa);
    CLEAR_FIELD(ca);
    ca.oap = &oa;
    ca.cmdchar = c1;
    ca.nchar = c2;
    nv_ident(&ca);
}


display_showcmd(void)
{
    int	    len;

    cursor_off();

    len = (int)STRLEN(showcmd_buf);
    if (len == 0)
	showcmd_is_clear = TRUE;
    else
    {
	screen_puts(showcmd_buf, (int)Rows - 1, sc_col, 0);
	showcmd_is_clear = FALSE;
    }

    // clear the rest of an old message by outputting up to SHOWCMD_COLS
    // spaces
    screen_puts((char_u *)"          " + len, (int)Rows - 1, sc_col + len, 0);

    setcursor();	    // put cursor back where it belongs
}


nv_halfpage(cmdarg_T *cap)
{
    if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
	    || (cap->cmdchar == Ctrl_D
		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
	clearopbeep(cap->oap);
    else if (!checkclearop(cap->oap))
	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
}


nv_replace(cmdarg_T *cap)
{
    char_u	*ptr;
    int		had_ctrl_v;
    long	n;

    if (checkclearop(cap->oap))
	return;
#ifdef FEAT_JOB_CHANNEL
    if (bt_prompt(curbuf) && !prompt_curpos_editable())
    {
	clearopbeep(cap->oap);
	return;
    }
#endif

    // get another character
    if (cap->nchar == Ctrl_V)
    {
	had_ctrl_v = Ctrl_V;
	cap->nchar = get_literal(FALSE);
	// Don't redo a multibyte character with CTRL-V.
	if (cap->nchar > DEL)
	    had_ctrl_v = NUL;
    }
    else
	had_ctrl_v = NUL;

    // Abort if the character is a special key.
    if (IS_SPECIAL(cap->nchar))
    {
	clearopbeep(cap->oap);
	return;
    }

    // Visual mode "r"
    if (VIsual_active)
    {
	if (got_int)
	    reset_VIsual();
	if (had_ctrl_v)
	{
	    // Use a special (negative) number to make a difference between a
	    // literal CR or NL and a line break.
	    if (cap->nchar == CAR)
		cap->nchar = REPLACE_CR_NCHAR;
	    else if (cap->nchar == NL)
		cap->nchar = REPLACE_NL_NCHAR;
	}
	nv_operator(cap);
	return;
    }

    // Break tabs, etc.
    if (virtual_active())
    {
	if (u_save_cursor() == FAIL)
	    return;
	if (gchar_cursor() == NUL)
	{
	    // Add extra space and put the cursor on the first one.
	    coladvance_force((colnr_T)(getviscol() + cap->count1));
	    curwin->w_cursor.col -= cap->count1;
	}
	else if (gchar_cursor() == TAB)
	    coladvance_force(getviscol());
    }

    // Abort if not enough characters to replace.
    ptr = ml_get_cursor();
    if (STRLEN(ptr) < (unsigned)cap->count1
	    || (has_mbyte && mb_charlen(ptr) < cap->count1))
    {
	clearopbeep(cap->oap);
	return;
    }

    // Replacing with a TAB is done by edit() when it is complicated because
    // 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
    // Other characters are done below to avoid problems with things like
    // CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
    if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
    {
	stuffnumReadbuff(cap->count1);
	stuffcharReadbuff('R');
	stuffcharReadbuff('\t');
	stuffcharReadbuff(ESC);
	return;
    }

    // save line for undo
    if (u_save_cursor() == FAIL)
	return;

    if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
    {
	// Replace character(s) by a single newline.
	// Strange vi behaviour: Only one newline is inserted.
	// Delete the characters here.
	// Insert the newline with an insert command, takes care of
	// autoindent.	The insert command depends on being on the last
	// character of a line or not.
	(void)del_chars(cap->count1, FALSE);	// delete the characters
	stuffcharReadbuff('\r');
	stuffcharReadbuff(ESC);

	// Give 'r' to edit(), to get the redo command right.
	invoke_edit(cap, TRUE, 'r', FALSE);
    }
    else
    {
	prep_redo(cap->oap->regname, cap->count1,
				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);

	curbuf->b_op_start = curwin->w_cursor;
	if (has_mbyte)
	{
	    int		old_State = State;

	    if (cap->ncharC1 != 0)
		AppendCharToRedobuff(cap->ncharC1);
	    if (cap->ncharC2 != 0)
		AppendCharToRedobuff(cap->ncharC2);

	    // This is slow, but it handles replacing a single-byte with a
	    // multi-byte and the other way around.  Also handles adding
	    // composing characters for utf-8.
	    for (n = cap->count1; n > 0; --n)
	    {
		State = MODE_REPLACE;
		if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y)
		{
		    int c = ins_copychar(curwin->w_cursor.lnum
					   + (cap->nchar == Ctrl_Y ? -1 : 1));
		    if (c != NUL)
			ins_char(c);
		    else
			// will be decremented further down
			++curwin->w_cursor.col;
		}
		else
		    ins_char(cap->nchar);
		State = old_State;
		if (cap->ncharC1 != 0)
		    ins_char(cap->ncharC1);
		if (cap->ncharC2 != 0)
		    ins_char(cap->ncharC2);
	    }
	}
	else
	{
	    // Replace the characters within one line.
	    for (n = cap->count1; n > 0; --n)
	    {
		// Get ptr again, because u_save and/or showmatch() will have
		// released the line.  This may also happen in ins_copychar().
		// At the same time we let know that the line will be changed.
		if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y)
		{
		  int c = ins_copychar(curwin->w_cursor.lnum
					   + (cap->nchar == Ctrl_Y ? -1 : 1));

		  ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
		  if (c != NUL)
		    ptr[curwin->w_cursor.col] = c;
		}
		else
		{
		    ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
		    ptr[curwin->w_cursor.col] = cap->nchar;
		}
		if (p_sm && msg_silent == 0)
		    showmatch(cap->nchar);
		++curwin->w_cursor.col;
	    }
#ifdef FEAT_NETBEANS_INTG
	    if (netbeans_active())
	    {
		colnr_T  start = (colnr_T)(curwin->w_cursor.col - cap->count1);

		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
							   cap->count1);
		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
					       &ptr[start], (int)cap->count1);
	    }
#endif

	    // mark the buffer as changed and prepare for displaying
	    changed_bytes(curwin->w_cursor.lnum,
			       (colnr_T)(curwin->w_cursor.col - cap->count1));
	}
	--curwin->w_cursor.col;	    // cursor on the last replaced char
	// if the character on the left of the current cursor is a multi-byte
	// character, move two characters left
	if (has_mbyte)
	    mb_adjust_cursor();
	curbuf->b_op_end = curwin->w_cursor;
	curwin->w_set_curswant = TRUE;
	set_last_insert(cap->nchar);
    }
}


nv_open(cmdarg_T *cap)
{
#ifdef FEAT_DIFF
    // "do" is ":diffget"
    if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
    {
	clearop(cap->oap);
	nv_diffgetput(FALSE, cap->opcount);
    }
    else
#endif
    if (VIsual_active)  // switch start and end of visual
	v_swap_corners(cap->cmdchar);
#ifdef FEAT_JOB_CHANNEL
    else if (bt_prompt(curbuf))
	clearopbeep(cap->oap);
#endif
    else
	n_opencmd(cap);
}


nv_search(cmdarg_T *cap)
{
    oparg_T	*oap = cap->oap;
    pos_T	save_cursor = curwin->w_cursor;

    if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
    {
	// Translate "g??" to "g?g?"
	cap->cmdchar = 'g';
	cap->nchar = '?';
	nv_operator(cap);
	return;
    }

    // When using 'incsearch' the cursor may be moved to set a different search
    // start position.
    cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0, 0);

    if (cap->searchbuf == NULL)
    {
	clearop(oap);
	return;
    }

    (void)normal_search(cap, cap->cmdchar, cap->searchbuf,
			(cap->arg || !EQUAL_POS(save_cursor, curwin->w_cursor))
						      ? 0 : SEARCH_MARK, NULL);
}


set_cursor_for_append_to_line(void)
{
    curwin->w_set_curswant = TRUE;
    if (get_ve_flags() == VE_ALL)
    {
	int save_State = State;

	// Pretend Insert mode here to allow the cursor on the
	// character past the end of the line
	State = MODE_INSERT;
	coladvance((colnr_T)MAXCOL);
	State = save_State;
    }
    else
	curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
}