Commit message: patch 8.2.3428: using freed memory when replacing

Problem:    Using freed memory when replacing. (Dhiraj Mishra)
Solution:   Get the line pointer after calling ins_copychar().
CVE: CVE-2021-3796
CWE: CWE-416
Vulnerability description: vim is vulnerable to Use After Free

Project: vim
File: normal.c

nv_visual(cmdarg_T *cap)
{
    if (cap->cmdchar == Ctrl_Q)
	cap->cmdchar = Ctrl_V;

    // 'v', 'V' and CTRL-V can be used while an operator is pending to make it
    // characterwise, linewise, or blockwise.
    if (cap->oap->op_type != OP_NOP)
    {
	motion_force = cap->oap->motion_force = cap->cmdchar;
	finish_op = FALSE;	// operator doesn't finish now but later
	return;
    }

    VIsual_select = cap->arg;
    if (VIsual_active)	    // change Visual mode
    {
	if (VIsual_mode == cap->cmdchar)    // stop visual mode
	    end_visual_mode();
	else				    // toggle char/block mode
	{				    //	   or char/line mode
	    VIsual_mode = cap->cmdchar;
	    showmode();
	}
	redraw_curbuf_later(INVERTED);	    // update the inversion
    }
    else		    // start Visual mode
    {
	check_visual_highlight();
	if (cap->count0 > 0 && resel_VIsual_mode != NUL)
	{
	    // use previously selected part
	    VIsual = curwin->w_cursor;

	    VIsual_active = TRUE;
	    VIsual_reselect = TRUE;
	    if (!cap->arg)
		// start Select mode when 'selectmode' contains "cmd"
		may_start_select('c');
	    setmouse();
	    if (p_smd && msg_silent == 0)
		redraw_cmdline = TRUE;	    // show visual mode later
	    /*
	     * For V and ^V, we multiply the number of lines even if there
	     * was only one -- webb
	     */
	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
	    {
		curwin->w_cursor.lnum +=
				    resel_VIsual_line_count * cap->count0 - 1;
		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
	    }
	    VIsual_mode = resel_VIsual_mode;
	    if (VIsual_mode == 'v')
	    {
		if (resel_VIsual_line_count <= 1)
		{
		    validate_virtcol();
		    curwin->w_curswant = curwin->w_virtcol
					+ resel_VIsual_vcol * cap->count0 - 1;
		}
		else
		    curwin->w_curswant = resel_VIsual_vcol;
		coladvance(curwin->w_curswant);
	    }
	    if (resel_VIsual_vcol == MAXCOL)
	    {
		curwin->w_curswant = MAXCOL;
		coladvance((colnr_T)MAXCOL);
	    }
	    else if (VIsual_mode == Ctrl_V)
	    {
		validate_virtcol();
		curwin->w_curswant = curwin->w_virtcol
					+ resel_VIsual_vcol * cap->count0 - 1;
		coladvance(curwin->w_curswant);
	    }
	    else
		curwin->w_set_curswant = TRUE;
	    redraw_curbuf_later(INVERTED);	// show the inversion
	}
	else
	{
	    if (!cap->arg)
		// start Select mode when 'selectmode' contains "cmd"
		may_start_select('c');
	    n_start_visual_mode(cap->cmdchar);
	    if (VIsual_mode != 'V' && *p_sel == 'e')
		++cap->count1;  // include one more char
	    if (cap->count0 > 0 && --cap->count1 > 0)
	    {
		// With a count select that many characters or lines.
		if (VIsual_mode == 'v' || VIsual_mode == Ctrl_V)
		    nv_right(cap);
		else if (VIsual_mode == 'V')
		    nv_down(cap);
	    }
	}
    }
}

Project: vim
File: normal.c

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;

    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
    }

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

Project: vim
File: normal.c

find_decl(
    char_u	*ptr,
    int		len,
    int		locally,
    int		thisblock,
    int		flags_arg)	// flags passed to searchit()
{
    char_u	*pat;
    pos_T	old_pos;
    pos_T	par_pos;
    pos_T	found_pos;
    int		t;
    int		save_p_ws;
    int		save_p_scs;
    int		retval = OK;
    int		incll;
    int		searchflags = flags_arg;
    int		valid;

    if ((pat = alloc(len + 7)) == NULL)
	return FAIL;

    // Put "\V" before the pattern to avoid that the special meaning of "."
    // and "~" causes trouble.
    sprintf((char *)pat, vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
								    len, ptr);
    old_pos = curwin->w_cursor;
    save_p_ws = p_ws;
    save_p_scs = p_scs;
    p_ws = FALSE;	// don't wrap around end of file now
    p_scs = FALSE;	// don't switch ignorecase off now

    /*
     * With "gD" go to line 1.
     * With "gd" Search back for the start of the current function, then go
     * back until a blank line.  If this fails go to line 1.
     */
    if (!locally || !findpar(&incll, BACKWARD, 1L, '{', FALSE))
    {
	setpcmark();			// Set in findpar() otherwise
	curwin->w_cursor.lnum = 1;
	par_pos = curwin->w_cursor;
    }
    else
    {
	par_pos = curwin->w_cursor;
	while (curwin->w_cursor.lnum > 1 && *skipwhite(ml_get_curline()) != NUL)
	    --curwin->w_cursor.lnum;
    }
    curwin->w_cursor.col = 0;

    // Search forward for the identifier, ignore comment lines.
    CLEAR_POS(&found_pos);
    for (;;)
    {
	t = searchit(curwin, curbuf, &curwin->w_cursor, NULL, FORWARD,
					  pat, 1L, searchflags, RE_LAST, NULL);
	if (curwin->w_cursor.lnum >= old_pos.lnum)
	    t = FAIL;	// match after start is failure too

	if (thisblock && t != FAIL)
	{
	    pos_T	*pos;

	    // Check that the block the match is in doesn't end before the
	    // position where we started the search from.
	    if ((pos = findmatchlimit(NULL, '}', FM_FORWARD,
		     (int)(old_pos.lnum - curwin->w_cursor.lnum + 1))) != NULL
		    && pos->lnum < old_pos.lnum)
	    {
		// There can't be a useful match before the end of this block.
		// Skip to the end.
		curwin->w_cursor = *pos;
		continue;
	    }
	}

	if (t == FAIL)
	{
	    // If we previously found a valid position, use it.
	    if (found_pos.lnum != 0)
	    {
		curwin->w_cursor = found_pos;
		t = OK;
	    }
	    break;
	}
	if (get_leader_len(ml_get_curline(), NULL, FALSE, TRUE) > 0)
	{
	    // Ignore this line, continue at start of next line.
	    ++curwin->w_cursor.lnum;
	    curwin->w_cursor.col = 0;
	    continue;
	}
	valid = is_ident(ml_get_curline(), curwin->w_cursor.col);

	// If the current position is not a valid identifier and a previous
	// match is present, favor that one instead.
	if (!valid && found_pos.lnum != 0)
	{
	    curwin->w_cursor = found_pos;
	    break;
	}

	// Global search: use first valid match found
	if (valid && !locally)
	    break;
	if (valid && curwin->w_cursor.lnum >= par_pos.lnum)
	{
	    // If we previously found a valid position, use it.
	    if (found_pos.lnum != 0)
		curwin->w_cursor = found_pos;
	    break;
	}

	// For finding a local variable and the match is before the "{" or
	// inside a comment, continue searching.  For K&R style function
	// declarations this skips the function header without types.
	if (!valid)
	    CLEAR_POS(&found_pos);
	else
	    found_pos = curwin->w_cursor;
	// Remove SEARCH_START from flags to avoid getting stuck at one
	// position.
	searchflags &= ~SEARCH_START;
    }

    if (t == FAIL)
    {
	retval = FAIL;
	curwin->w_cursor = old_pos;
    }
    else
    {
	curwin->w_set_curswant = TRUE;
	// "n" searches forward now
	reset_search_dir();
    }

    vim_free(pat);
    p_ws = save_p_ws;
    p_scs = save_p_scs;

    return retval;
}

Project: vim
File: normal.c

normal_cmd(
    oparg_T	*oap,
    int		toplevel UNUSED)	// TRUE when called from main()
{
    cmdarg_T	ca;			// command arguments
    int		c;
    int		ctrl_w = FALSE;		// got CTRL-W command
    int		old_col = curwin->w_curswant;
#ifdef FEAT_CMDL_INFO
    int		need_flushbuf;		// need to call out_flush()
#endif
    pos_T	old_pos;		// cursor position before command
    int		mapped_len;
    static int	old_mapped_len = 0;
    int		idx;
#ifdef FEAT_EVAL
    int		set_prevcount = FALSE;
#endif
    int		save_did_cursorhold = did_cursorhold;

    CLEAR_FIELD(ca);	// also resets ca.retval
    ca.oap = oap;

    // Use a count remembered from before entering an operator.  After typing
    // "3d" we return from normal_cmd() and come back here, the "3" is
    // remembered in "opcount".
    ca.opcount = opcount;

    /*
     * If there is an operator pending, then the command we take this time
     * will terminate it. Finish_op tells us to finish the operation before
     * returning this time (unless the operation was cancelled).
     */
#ifdef CURSOR_SHAPE
    c = finish_op;
#endif
    finish_op = (oap->op_type != OP_NOP);
#ifdef CURSOR_SHAPE
    if (finish_op != c)
    {
	ui_cursor_shape();		// may show different cursor shape
# ifdef FEAT_MOUSESHAPE
	update_mouseshape(-1);
# endif
    }
#endif

    // When not finishing an operator and no register name typed, reset the
    // count.
    if (!finish_op && !oap->regname)
    {
	ca.opcount = 0;
#ifdef FEAT_EVAL
	set_prevcount = TRUE;
#endif
    }

    // Restore counts from before receiving K_CURSORHOLD.  This means after
    // typing "3", handling K_CURSORHOLD and then typing "2" we get "32", not
    // "3 * 2".
    if (oap->prev_opcount > 0 || oap->prev_count0 > 0)
    {
	ca.opcount = oap->prev_opcount;
	ca.count0 = oap->prev_count0;
	oap->prev_opcount = 0;
	oap->prev_count0 = 0;
    }

    mapped_len = typebuf_maplen();

    State = NORMAL_BUSY;
#ifdef USE_ON_FLY_SCROLL
    dont_scroll = FALSE;	// allow scrolling here
#endif

#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
    // when there is no count. Do set it for redo.
    if (toplevel && readbuf1_empty())
	set_vcount_ca(&ca, &set_prevcount);
#endif

    /*
     * Get the command character from the user.
     */
    c = safe_vgetc();
    LANGMAP_ADJUST(c, get_real_state() != SELECTMODE);

    /*
     * If a mapping was started in Visual or Select mode, remember the length
     * of the mapping.  This is used below to not return to Insert mode for as
     * long as the mapping is being executed.
     */
    if (restart_edit == 0)
	old_mapped_len = 0;
    else if (old_mapped_len
		|| (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0))
	old_mapped_len = typebuf_maplen();

    if (c == NUL)
	c = K_ZERO;

    /*
     * In Select mode, typed text replaces the selection.
     */
    if (VIsual_active
	    && VIsual_select
	    && (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
    {
	// Fake a "c"hange command.  When "restart_edit" is set (e.g., because
	// 'insertmode' is set) fake a "d"elete command, Insert mode will
	// restart automatically.
	// Insert the typed character in the typeahead buffer, so that it can
	// be mapped in Insert mode.  Required for ":lmap" to work.
	ins_char_typebuf(vgetc_char, vgetc_mod_mask);
	if (restart_edit != 0)
	    c = 'd';
	else
	    c = 'c';
	msg_nowait = TRUE;	// don't delay going to insert mode
	old_mapped_len = 0;	// do go to Insert mode
    }

#ifdef FEAT_CMDL_INFO
    need_flushbuf = add_to_showcmd(c);
#endif

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')
		|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
	{
	    if (c == K_DEL || c == K_KDEL)
	    {
		ca.count0 /= 10;
#ifdef FEAT_CMDL_INFO
		del_from_showcmd(4);	// delete the digit and ~@%
#endif
	    }
	    else
		ca.count0 = ca.count0 * 10 + (c - '0');
	    if (ca.count0 < 0)	    // overflow
		ca.count0 = 999999999L;
#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(&ca, &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 && oap->op_type == OP_NOP)
	{
	    ctrl_w = TRUE;
	    ca.opcount = ca.count0;	// remember first count
	    ca.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.
	oap->prev_opcount = ca.opcount;
	oap->prev_count0 = ca.count0;
    }
    else if (ca.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 (ca.count0)
	    ca.count0 *= ca.opcount;
	else
	    ca.count0 = ca.opcount;
	if (ca.count0 < 0)	    // overflow
	    ca.count0 = 999999999L;
    }

    /*
     * 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.
     */
    ca.opcount = ca.count0;
    ca.count1 = (ca.count0 == 0 ? 1 : ca.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(ca.count0, ca.count1, set_prevcount);
#endif

    /*
     * Find the command character in the table of commands.
     * For CTRL-W we already got nchar when looking for a count.
     */
    if (ctrl_w)
    {
	ca.nchar = c;
	ca.cmdchar = Ctrl_W;
    }
    else
	ca.cmdchar = c;
    idx = find_command(ca.cmdchar);
    if (idx < 0)
    {
	// Not a known command: beep.
	clearopbeep(oap);
	goto normal_end;
    }

    if (text_locked() && (nv_cmds[idx].cmd_flags & NV_NCW))
    {
	// This command is not allowed while editing a cmdline: beep.
	clearopbeep(oap);
	text_locked_msg();
	goto normal_end;
    }
    if ((nv_cmds[idx].cmd_flags & NV_NCW) && curbuf_locked())
	goto normal_end;

    /*
     * In Visual/Select mode, a few keys are handled in a special way.
     */
    if (VIsual_active)
    {
	// when 'keymodel' contains "stopsel" may stop Select/Visual mode
	if (km_stopsel
		&& (nv_cmds[idx].cmd_flags & NV_STS)
		&& !(mod_mask & MOD_MASK_SHIFT))
	{
	    end_visual_mode();
	    redraw_curbuf_later(INVERTED);
	}

	// Keys that work different when 'keymodel' contains "startsel"
	if (km_startsel)
	{
	    if (nv_cmds[idx].cmd_flags & NV_SS)
	    {
		unshift_special(&ca);
		idx = find_command(ca.cmdchar);
		if (idx < 0)
		{
		    // Just in case
		    clearopbeep(oap);
		    goto normal_end;
		}
	    }
	    else if ((nv_cmds[idx].cmd_flags & NV_SSS)
					       && (mod_mask & MOD_MASK_SHIFT))
		mod_mask &= ~MOD_MASK_SHIFT;
	}
    }

#ifdef FEAT_RIGHTLEFT
    if (curwin->w_p_rl && KeyTyped && !KeyStuffed
					  && (nv_cmds[idx].cmd_flags & NV_RL))
    {
	// Invert horizontal movements and operations.  Only when typed by the
	// user directly, not when the result of a mapping or "x" translated
	// to "dl".
	switch (ca.cmdchar)
	{
	    case 'l':	    ca.cmdchar = 'h'; break;
	    case K_RIGHT:   ca.cmdchar = K_LEFT; break;
	    case K_S_RIGHT: ca.cmdchar = K_S_LEFT; break;
	    case K_C_RIGHT: ca.cmdchar = K_C_LEFT; break;
	    case 'h':	    ca.cmdchar = 'l'; break;
	    case K_LEFT:    ca.cmdchar = K_RIGHT; break;
	    case K_S_LEFT:  ca.cmdchar = K_S_RIGHT; break;
	    case K_C_LEFT:  ca.cmdchar = K_C_RIGHT; break;
	    case '>':	    ca.cmdchar = '<'; break;
	    case '<':	    ca.cmdchar = '>'; break;
	}
	idx = find_command(ca.cmdchar);
    }
#endif

    /*
     * Get an additional character if we need one.
     */
    if ((nv_cmds[idx].cmd_flags & NV_NCH)
	    && (((nv_cmds[idx].cmd_flags & NV_NCH_NOP) == NV_NCH_NOP
		    && oap->op_type == OP_NOP)
		|| (nv_cmds[idx].cmd_flags & NV_NCH_ALW) == NV_NCH_ALW
		|| (ca.cmdchar == 'q'
		    && oap->op_type == OP_NOP
		    && reg_recording == 0
		    && reg_executing == 0)
		|| ((ca.cmdchar == 'a' || ca.cmdchar == 'i')
		    && (oap->op_type != OP_NOP || VIsual_active))))
    {
	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 (ca.cmdchar == 'g')
	{
	    /*
	     * For 'g' get the next character now, so that we can check for
	     * "gr", "g'" and "g`".
	     */
	    ca.nchar = plain_vgetc();
	    LANGMAP_ADJUST(ca.nchar, TRUE);
#ifdef FEAT_CMDL_INFO
	    need_flushbuf |= add_to_showcmd(ca.nchar);
#endif
	    if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
						       || ca.nchar == Ctrl_BSL)
	    {
		cp = &ca.extra_char;	// need to get a third character
		if (ca.nchar != 'r')
		    lit = TRUE;			// get it literally
		else
		    repl = TRUE;		// get it in replace mode
	    }
	    else
		cp = NULL;		// no third character needed
	}
	else
	{
	    if (ca.cmdchar == 'r')		// get it in replace mode
		repl = TRUE;
	    cp = &ca.nchar;
	}
	lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));

	/*
	 * Get a second or third character.
	 */
	if (cp != NULL)
	{
	    if (repl)
	    {
		State = 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 = LREPLACE;
		else
		    State = 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 & 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 & 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 = 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 = 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 == &ca.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 == &ca.extra_char
		    && ca.nchar == Ctrl_BSL
		    && (ca.extra_char == Ctrl_N || ca.extra_char == Ctrl_G))
	    {
		ca.cmdchar = Ctrl_BSL;
		ca.nchar = ca.extra_char;
		idx = find_command(ca.cmdchar);
	    }
	    else if ((ca.nchar == 'n' || ca.nchar == 'N') && ca.cmdchar == 'g')
		ca.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
		    {
			ca.cmdchar = Ctrl_BSL;
			ca.nchar = c;
			idx = find_command(ca.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 (ca.ncharC1 == 0)
		    ca.ncharC1 = c;
		else
		    ca.ncharC2 = c;
	    }
	    ++no_mapping;
	}
	--no_mapping;
	--allow_keys;
    }

#ifdef FEAT_CMDL_INFO
    /*
     * Flush the showcmd characters onto the screen so we can see them while
     * the command is being executed.  Only do this when the shown command was
     * actually displayed, otherwise this will slow down a lot when executing
     * mappings.
     */
    if (need_flushbuf)
	out_flush();
#endif
    if (ca.cmdchar != K_IGNORE)
    {
	if (ex_normal_busy)
	    did_cursorhold = save_did_cursorhold;
	else
	    did_cursorhold = FALSE;
    }

    State = NORMAL;

    if (ca.nchar == ESC)
    {
	clearop(oap);
	if (restart_edit == 0 && goto_im())
	    restart_edit = 'a';
	goto normal_end;
    }

    if (ca.cmdchar != K_IGNORE)
    {
	msg_didout = FALSE;    // don't scroll screen up for normal command
	msg_col = 0;
    }

    old_pos = curwin->w_cursor;		// remember where cursor was

    // When 'keymodel' contains "startsel" some keys start Select/Visual
    // mode.
    if (!VIsual_active && km_startsel)
    {
	if (nv_cmds[idx].cmd_flags & NV_SS)
	{
	    start_selection();
	    unshift_special(&ca);
	    idx = find_command(ca.cmdchar);
	}
	else if ((nv_cmds[idx].cmd_flags & NV_SSS)
					   && (mod_mask & MOD_MASK_SHIFT))
	{
	    start_selection();
	    mod_mask &= ~MOD_MASK_SHIFT;
	}
    }

    /*
     * Execute the command!
     * Call the command function found in the commands table.
     */
    ca.arg = nv_cmds[idx].cmd_arg;
    (nv_cmds[idx].cmd_func)(&ca);

    /*
     * If we didn't start or finish an operator, reset oap->regname, unless we
     * need it later.
     */
    if (!finish_op
	    && !oap->op_type
	    && (idx < 0 || !(nv_cmds[idx].cmd_flags & NV_KEEPREG)))
    {
	clearop(oap);
#ifdef FEAT_EVAL
	reset_reg_var();
#endif
    }

    // Get the length of mapped chars again after typing a count, second
    // character or "z333<cr>".
    if (old_mapped_len > 0)
	old_mapped_len = typebuf_maplen();

    /*
     * If an operation is pending, handle it.  But not for K_IGNORE or
     * K_MOUSEMOVE.
     */
    if (ca.cmdchar != K_IGNORE && ca.cmdchar != K_MOUSEMOVE)
	do_pending_operator(&ca, old_col, FALSE);

    /*
     * Wait for a moment when a message is displayed that will be overwritten
     * by the mode message.
     * 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.
     */
    if (       ((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)))
	    && oap->regname == 0
	    && !(ca.retval & CA_COMMAND_BUSY)
	    && stuff_empty()
	    && typebuf_typed()
	    && emsg_silent == 0
	    && !in_assert_fails
	    && !did_wait_return
	    && oap->op_type == OP_NOP)
    {
	int	save_State = State;

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

    /*
     * Finish up after executing a Normal mode command.
     */
normal_end:

    msg_nowait = FALSE;

#ifdef FEAT_EVAL
    if (finish_op)
	reset_reg_var();
#endif

    // Reset finish_op, in case it was set
#ifdef CURSOR_SHAPE
    c = finish_op;
#endif
    finish_op = FALSE;
#ifdef CURSOR_SHAPE
    // Redraw the cursor with another shape, if we were in Operator-pending
    // mode or did a replace command.
    if (c || ca.cmdchar == 'r')
    {
	ui_cursor_shape();		// may show different cursor shape
# ifdef FEAT_MOUSESHAPE
	update_mouseshape(-1);
# endif
    }
#endif

#ifdef FEAT_CMDL_INFO
    if (oap->op_type == OP_NOP && oap->regname == 0
	    && ca.cmdchar != K_CURSORHOLD)
	clear_showcmd();
#endif

    checkpcmark();		// check if we moved since setting pcmark
    vim_free(ca.searchbuf);

    if (has_mbyte)
	mb_adjust_cursor();

    if (curwin->w_p_scb && toplevel)
    {
	validate_cursor();	// may need to update w_leftcol
	do_check_scrollbind(TRUE);
    }

    if (curwin->w_p_crb && toplevel)
    {
	validate_cursor();	// may need to update w_leftcol
	do_check_cursorbind();
    }

#ifdef FEAT_TERMINAL
    // don't go to Insert mode if a terminal has a running job
    if (term_job_running(curbuf->b_term))
	restart_edit = 0;
#endif

    /*
     * May restart edit(), if we got here with CTRL-O in Insert mode (but not
     * if still inside a mapping that started in Visual mode).
     * May switch from Visual to Select mode after CTRL-O command.
     */
    if (       oap->op_type == OP_NOP
	    && ((restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
		|| restart_VIsual_select == 1)
	    && !(ca.retval & CA_COMMAND_BUSY)
	    && stuff_empty()
	    && oap->regname == 0)
    {
	if (restart_VIsual_select == 1)
	{
	    VIsual_select = TRUE;
	    showmode();
	    restart_VIsual_select = 0;
	}
	if (restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
	    (void)edit(restart_edit, FALSE, 1L);
    }

    if (restart_VIsual_select == 2)
	restart_VIsual_select = 1;

    // Save count before an operator for next time.
    opcount = ca.opcount;
}

Project: vim
File: normal.c

nv_screengo(oparg_T *oap, int dir, long dist)
{
    int		linelen = linetabsize(ml_get_curline());
    int		retval = OK;
    int		atend = FALSE;
    int		n;
    int		col_off1;	// margin offset for first screen line
    int		col_off2;	// margin offset for wrapped screen line
    int		width1;		// text width for first screen line
    int		width2;		// test width for wrapped screen line

    oap->motion_type = MCHAR;
    oap->inclusive = (curwin->w_curswant == MAXCOL);

    col_off1 = curwin_col_off();
    col_off2 = col_off1 - curwin_col_off2();
    width1 = curwin->w_width - col_off1;
    width2 = curwin->w_width - col_off2;
    if (width2 == 0)
	width2 = 1; // avoid divide by zero

    if (curwin->w_width != 0)
    {
      /*
       * Instead of sticking at the last character of the buffer line we
       * try to stick in the last column of the screen.
       */
      if (curwin->w_curswant == MAXCOL)
      {
	atend = TRUE;
	validate_virtcol();
	if (width1 <= 0)
	    curwin->w_curswant = 0;
	else
	{
	    curwin->w_curswant = width1 - 1;
	    if (curwin->w_virtcol > curwin->w_curswant)
		curwin->w_curswant += ((curwin->w_virtcol
			     - curwin->w_curswant - 1) / width2 + 1) * width2;
	}
      }
      else
      {
	if (linelen > width1)
	    n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
	else
	    n = width1;
	if (curwin->w_curswant >= (colnr_T)n)
	    curwin->w_curswant = n - 1;
      }

      while (dist--)
      {
	if (dir == BACKWARD)
	{
	    if ((long)curwin->w_curswant >= width1
#ifdef FEAT_FOLDING
		    && !hasFolding(curwin->w_cursor.lnum, NULL, NULL)
#endif
	       )
		// Move back within the line. This can give a negative value
		// for w_curswant if width1 < width2 (with cpoptions+=n),
		// which will get clipped to column 0.
		curwin->w_curswant -= width2;
	    else
	    {
		// to previous line
#ifdef FEAT_FOLDING
		// Move to the start of a closed fold.  Don't do that when
		// 'foldopen' contains "all": it will open in a moment.
		if (!(fdo_flags & FDO_ALL))
		    (void)hasFolding(curwin->w_cursor.lnum,
						&curwin->w_cursor.lnum, NULL);
#endif
		if (curwin->w_cursor.lnum == 1)
		{
		    retval = FAIL;
		    break;
		}
		--curwin->w_cursor.lnum;

		linelen = linetabsize(ml_get_curline());
		if (linelen > width1)
		    curwin->w_curswant += (((linelen - width1 - 1) / width2)
								+ 1) * width2;
	    }
	}
	else // dir == FORWARD
	{
	    if (linelen > width1)
		n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
	    else
		n = width1;
	    if (curwin->w_curswant + width2 < (colnr_T)n
#ifdef FEAT_FOLDING
		    && !hasFolding(curwin->w_cursor.lnum, NULL, NULL)
#endif
		    )
		// move forward within line
		curwin->w_curswant += width2;
	    else
	    {
		// to next line
#ifdef FEAT_FOLDING
		// Move to the end of a closed fold.
		(void)hasFolding(curwin->w_cursor.lnum, NULL,
						      &curwin->w_cursor.lnum);
#endif
		if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
		{
		    retval = FAIL;
		    break;
		}
		curwin->w_cursor.lnum++;
		curwin->w_curswant %= width2;
		// Check if the cursor has moved below the number display
		// when width1 < width2 (with cpoptions+=n). Subtract width2
		// to get a negative value for w_curswant, which will get
		// clipped to column 0.
		if (curwin->w_curswant >= width1)
		    curwin->w_curswant -= width2;
		linelen = linetabsize(ml_get_curline());
	    }
	}
      }
    }

    if (virtual_active() && atend)
	coladvance(MAXCOL);
    else
	coladvance(curwin->w_curswant);

    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
    {
	colnr_T virtcol;

	/*
	 * Check for landing on a character that got split at the end of the
	 * last line.  We want to advance a screenline, not end up in the same
	 * screenline or move two screenlines.
	 */
	validate_virtcol();
	virtcol = curwin->w_virtcol;
#if defined(FEAT_LINEBREAK)
	if (virtcol > (colnr_T)width1 && *get_showbreak_value(curwin) != NUL)
	    virtcol -= vim_strsize(get_showbreak_value(curwin));
#endif

	if (virtcol > curwin->w_curswant
		&& (curwin->w_curswant < (colnr_T)width1
		    ? (curwin->w_curswant > (colnr_T)width1 / 2)
		    : ((curwin->w_curswant - width1) % width2
						      > (colnr_T)width2 / 2)))
	    --curwin->w_cursor.col;
    }

    if (atend)
	curwin->w_curswant = MAXCOL;	    // stick in the last column

    return retval;
}

Project: vim
File: normal.c

init_normal_cmds(void)
{
    int		i;

    // Fill the index table with a one to one relation.
    for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
	nv_cmd_idx[i] = i;

    // Sort the commands by the command character.
    qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);

    // Find the first entry that can't be indexed by the command character.
    for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
	if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
	    break;
    nv_max_linear = i - 1;
}

Project: vim
File: normal.c

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

Project: vim
File: normal.c

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

    if (cmd1 != NUL)
	AppendCharToRedobuff(cmd1);
    if (cmd2 != NUL)
	AppendCharToRedobuff(cmd2);
    if (cmd3 != NUL)
	AppendCharToRedobuff(cmd3);
    if (cmd4 != NUL)
	AppendCharToRedobuff(cmd4);
    if (cmd5 != NUL)
	AppendCharToRedobuff(cmd5);
}

Project: vim
File: normal.c

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) == 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);
	}
    }
}

Project: vim
File: normal.c

nv_exmode(cmdarg_T *cap)
{
    /*
     * Ignore 'Q' in Visual mode, just give a beep.
     */
    if (VIsual_active)
	vim_beep(BO_EX);
    else if (!checkclearop(cap->oap))
	do_exmode(FALSE);
}

Project: vim
File: normal.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(_("E348: No string under cursor"));
	    else
		emsg(_(e_noident));
	}
	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;
}

Project: vim
File: normal.c

nv_ident(cmdarg_T *cap)
{
    char_u	*ptr = NULL;
    char_u	*buf;
    unsigned	buflen;
    char_u	*newbuf;
    char_u	*p;
    char_u	*kp;		// value of 'keywordprg'
    int		kp_help;	// 'keywordprg' is ":he"
    int		kp_ex;		// 'keywordprg' starts with ":"
    int		n = 0;		// init for GCC
    int		cmdchar;
    int		g_cmd;		// "g" command
    int		tag_cmd = FALSE;
    char_u	*aux_ptr;
    int		isman;
    int		isman_s;

    if (cap->cmdchar == 'g')	// "g*", "g#", "g]" and "gCTRL-]"
    {
	cmdchar = cap->nchar;
	g_cmd = TRUE;
    }
    else
    {
	cmdchar = cap->cmdchar;
	g_cmd = FALSE;
    }

    if (cmdchar == POUND)	// the pound sign, '#' for English keyboards
	cmdchar = '#';

    /*
     * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
     */
    if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
    {
	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
	    return;
	if (checkclearopq(cap->oap))
	    return;
    }

    if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
		    (cmdchar == '*' || cmdchar == '#')
				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
    {
	clearop(cap->oap);
	return;
    }

    // Allocate buffer to put the command in.  Inserting backslashes can
    // double the length of the word.  p_kp / curbuf->b_p_kp could be added
    // and some numbers.
    kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
    kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
						 || STRCMP(kp, ":help") == 0);
    if (kp_help && *skipwhite(ptr) == NUL)
    {
	emsg(_(e_noident));	 // found white space only
	return;
    }
    kp_ex = (*kp == ':');
    buflen = (unsigned)(n * 2 + 30 + STRLEN(kp));
    buf = alloc(buflen);
    if (buf == NULL)
	return;
    buf[0] = NUL;

    switch (cmdchar)
    {
	case '*':
	case '#':
	    /*
	     * Put cursor at start of word, makes search skip the word
	     * under the cursor.
	     * Call setpcmark() first, so "*``" puts the cursor back where
	     * it was.
	     */
	    setpcmark();
	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());

	    if (!g_cmd && vim_iswordp(ptr))
		STRCPY(buf, "\\<");
	    no_smartcase = TRUE;	// don't use 'smartcase' now
	    break;

	case 'K':
	    if (kp_help)
		STRCPY(buf, "he! ");
	    else if (kp_ex)
	    {
		if (cap->count0 != 0)
		    vim_snprintf((char *)buf, buflen, "%s %ld",
							     kp, cap->count0);
		else
		    STRCPY(buf, kp);
		STRCAT(buf, " ");
	    }
	    else
	    {
		// An external command will probably use an argument starting
		// with "-" as an option.  To avoid trouble we skip the "-".
		while (*ptr == '-' && n > 0)
		{
		    ++ptr;
		    --n;
		}
		if (n == 0)
		{
		    emsg(_(e_noident));	 // found dashes only
		    vim_free(buf);
		    return;
		}

		// When a count is given, turn it into a range.  Is this
		// really what we want?
		isman = (STRCMP(kp, "man") == 0);
		isman_s = (STRCMP(kp, "man -s") == 0);
		if (cap->count0 != 0 && !(isman || isman_s))
		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);

		STRCAT(buf, "! ");
		if (cap->count0 == 0 && isman_s)
		    STRCAT(buf, "man");
		else
		    STRCAT(buf, kp);
		STRCAT(buf, " ");
		if (cap->count0 != 0 && (isman || isman_s))
		{
		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
		    STRCAT(buf, " ");
		}
	    }
	    break;

	case ']':
	    tag_cmd = TRUE;
#ifdef FEAT_CSCOPE
	    if (p_cst)
		STRCPY(buf, "cstag ");
	    else
#endif
		STRCPY(buf, "ts ");
	    break;

	default:
	    tag_cmd = TRUE;
	    if (curbuf->b_help)
		STRCPY(buf, "he! ");
	    else
	    {
		if (g_cmd)
		    STRCPY(buf, "tj ");
		else if (cap->count0 == 0)
		    STRCPY(buf, "ta ");
		else
		    sprintf((char *)buf, ":%ldta ", cap->count0);
	    }
    }

    /*
     * Now grab the chars in the identifier
     */
    if (cmdchar == 'K' && !kp_help)
    {
	ptr = vim_strnsave(ptr, n);
	if (kp_ex)
	    // Escape the argument properly for an Ex command
	    p = vim_strsave_fnameescape(ptr, FALSE);
	else
	    // Escape the argument properly for a shell command
	    p = vim_strsave_shellescape(ptr, TRUE, TRUE);
	vim_free(ptr);
	if (p == NULL)
	{
	    vim_free(buf);
	    return;
	}
	newbuf = vim_realloc(buf, STRLEN(buf) + STRLEN(p) + 1);
	if (newbuf == NULL)
	{
	    vim_free(buf);
	    vim_free(p);
	    return;
	}
	buf = newbuf;
	STRCAT(buf, p);
	vim_free(p);
    }
    else
    {
	if (cmdchar == '*')
	    aux_ptr = (char_u *)(magic_isset() ? "/.*~[^$\\" : "/^$\\");
	else if (cmdchar == '#')
	    aux_ptr = (char_u *)(magic_isset() ? "/?.*~[^$\\" : "/?^$\\");
	else if (tag_cmd)
	{
	    if (curbuf->b_help)
		// ":help" handles unescaped argument
		aux_ptr = (char_u *)"";
	    else
		aux_ptr = (char_u *)"\\|\"\n[";
	}
	else
	    aux_ptr = (char_u *)"\\|\"\n*?[";

	p = buf + STRLEN(buf);
	while (n-- > 0)
	{
	    // put a backslash before \ and some others
	    if (vim_strchr(aux_ptr, *ptr) != NULL)
		*p++ = '\\';
	    // When current byte is a part of multibyte character, copy all
	    // bytes of that character.
	    if (has_mbyte)
	    {
		int i;
		int len = (*mb_ptr2len)(ptr) - 1;

		for (i = 0; i < len && n >= 1; ++i, --n)
		    *p++ = *ptr++;
	    }
	    *p++ = *ptr++;
	}
	*p = NUL;
    }

    /*
     * Execute the command.
     */
    if (cmdchar == '*' || cmdchar == '#')
    {
	if (!g_cmd && (has_mbyte
		    ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr))
		    : vim_iswordc(ptr[-1])))
	    STRCAT(buf, "\\>");

	// put pattern in search history
	init_history();
	add_to_history(HIST_SEARCH, buf, TRUE, NUL);

	(void)normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0, NULL);
    }
    else
    {
	g_tag_at_cursor = TRUE;
	do_cmdline_cmd(buf);
	g_tag_at_cursor = FALSE;
    }

    vim_free(buf);
}

Project: vim
File: normal.c

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);
#ifdef FEAT_FOLDING
    else if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
	foldOpenCursor();
#endif
}

Project: vim
File: normal.c

nv_right(cmdarg_T *cap)
{
    long	n;
    int		past_line;

    if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
    {
	// <C-Right> and <S-Right> move a word or WORD right
	if (mod_mask & MOD_MASK_CTRL)
	    cap->arg = TRUE;
	nv_wordcmd(cap);
	return;
    }

    cap->oap->motion_type = MCHAR;
    cap->oap->inclusive = FALSE;
    past_line = (VIsual_active && *p_sel != 'o');

    /*
     * In virtual edit mode, there's no such thing as "past_line", as lines
     * are (theoretically) infinitely long.
     */
    if (virtual_active())
	past_line = 0;

    for (n = cap->count1; n > 0; --n)
    {
	if ((!past_line && oneright() == FAIL)
		|| (past_line && *ml_get_cursor() == NUL)
		)
	{
	    /*
	     *	  <Space> wraps to next line if 'whichwrap' has 's'.
	     *	      'l' wraps to next line if 'whichwrap' has 'l'.
	     * CURS_RIGHT wraps to next line if 'whichwrap' has '>'.
	     */
	    if (       ((cap->cmdchar == ' '
			    && vim_strchr(p_ww, 's') != NULL)
			|| (cap->cmdchar == 'l'
			    && vim_strchr(p_ww, 'l') != NULL)
			|| (cap->cmdchar == K_RIGHT
			    && vim_strchr(p_ww, '>') != NULL))
		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
	    {
		// When deleting we also count the NL as a character.
		// Set cap->oap->inclusive when last char in the line is
		// included, move to next line after that
		if (	   cap->oap->op_type != OP_NOP
			&& !cap->oap->inclusive
			&& !LINEEMPTY(curwin->w_cursor.lnum))
		    cap->oap->inclusive = TRUE;
		else
		{
		    ++curwin->w_cursor.lnum;
		    curwin->w_cursor.col = 0;
		    curwin->w_cursor.coladd = 0;
		    curwin->w_set_curswant = TRUE;
		    cap->oap->inclusive = FALSE;
		}
		continue;
	    }
	    if (cap->oap->op_type == OP_NOP)
	    {
		// Only beep and flush if not moved at all
		if (n == cap->count1)
		    beep_flush();
	    }
	    else
	    {
		if (!LINEEMPTY(curwin->w_cursor.lnum))
		    cap->oap->inclusive = TRUE;
	    }
	    break;
	}
	else if (past_line)
	{
	    curwin->w_set_curswant = TRUE;
	    if (virtual_active())
		oneright();
	    else
	    {
		if (has_mbyte)
		    curwin->w_cursor.col += (*mb_ptr2len)(ml_get_cursor());
		else
		    ++curwin->w_cursor.col;
	    }
	}
    }
#ifdef FEAT_FOLDING
    if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
					       && cap->oap->op_type == OP_NOP)
	foldOpenCursor();
#endif
}

Project: vim
File: normal.c

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

Project: vim
File: normal.c

nv_pcmark(cmdarg_T *cap)
{
#ifdef FEAT_JUMPLIST
    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(_("E664: changelist is empty"));
	    else if (cap->count1 < 0)
		emsg(_("E662: At start of changelist"));
	    else
		emsg(_("E663: 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
    }
#else
    clearopbeep(cap->oap);
#endif
}

Project: vim
File: normal.c

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
    }
}

Project: vim
File: normal.c

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);
    }
}

Project: vim
File: normal.c

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
#ifdef FEAT_SPELL
    int		undo = FALSE;
#endif
    long        siso = get_sidescrolloff_value();

    if (VIM_ISDIGIT(nchar))
    {
	/*
	 * "z123{nchar}": edit the count before obtaining {nchar}
	 */
	if (checkclearop(cap->oap))
	    return;
	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;
		goto dozet;
	    }
	    else
	    {
		clearopbeep(cap->oap);
		break;
	    }
	}
	cap->oap->op_type = OP_NOP;
	return;
    }

dozet:
    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(_("E352: 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"
		++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);
		    break;
		}
		undo = TRUE;
		// FALLTHROUGH

    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
		{
		    char_u  *ptr = NULL;
		    int	    len;

		    if (checkclearop(cap->oap))
			break;
		    if (VIsual_active && get_visual_text(cap, &ptr, &len)
								      == FAIL)
			return;
		    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;
		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W'
					      ? SPELL_ADD_BAD : SPELL_ADD_GOOD,
					    (nchar == 'G' || nchar == 'W')
						       ? 0 : (int)cap->count1,
					    undo);
		}
		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
}

Project: vim
File: normal.c

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

    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;
    }
}

Project: vim
File: normal.c

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

Project: vim
File: normal.c

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;

    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;
#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 = 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);
    }
}

Project: vim
File: normal.c

nv_compare(const void *s1, const void *s2)
{
    int		c1, c2;

    // The commands are sorted on absolute value.
    c1 = nv_cmds[*(const short *)s1].cmd_char;
    c2 = nv_cmds[*(const short *)s2].cmd_char;
    if (c1 < 0)
	c1 = -c1;
    if (c2 < 0)
	c2 = -c2;
    return c1 - c2;
}

Project: vim
File: normal.c

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, TRUE);

    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);
}

Project: vim
File: normal.c

nv_edit(cmdarg_T *cap)
{
    // <Insert> is equal to "i"
    if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
	cap->cmdchar = 'i';

    // in Visual mode "A" and "I" are an operator
    if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
    {
#ifdef FEAT_TERMINAL
	if (term_in_normal_mode())
	{
	    end_visual_mode();
	    clearop(cap->oap);
	    term_enter_job_mode();
	    return;
	}
#endif
	v_visop(cap);
    }

    // in Visual mode and after an operator "a" and "i" are for text objects
    else if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
	    && (cap->oap->op_type != OP_NOP || VIsual_active))
    {
#ifdef FEAT_TEXTOBJ
	nv_object(cap);
#else
	clearopbeep(cap->oap);
#endif
    }
#ifdef FEAT_TERMINAL
    else if (term_in_normal_mode())
    {
	clearop(cap->oap);
	term_enter_job_mode();
	return;
    }
#endif
    else if (!curbuf->b_p_ma && !p_im)
    {
	// Only give this error when 'insertmode' is off.
	emsg(_(e_cannot_make_changes_modifiable_is_off));
	clearop(cap->oap);
	if (cap->cmdchar == K_PS)
	    // drop the pasted text
	    bracketed_paste(PASTE_INSERT, TRUE, NULL);
    }
    else if (cap->cmdchar == K_PS && VIsual_active)
    {
	pos_T old_pos = curwin->w_cursor;
	pos_T old_visual = VIsual;

	// In Visual mode the selected text is deleted.
	if (VIsual_mode == 'V' || curwin->w_cursor.lnum != VIsual.lnum)
	{
	    shift_delete_registers();
	    cap->oap->regname = '1';
	}
	else
	    cap->oap->regname = '-';
	cap->cmdchar = 'd';
	cap->nchar = NUL;
	nv_operator(cap);
	do_pending_operator(cap, 0, FALSE);
	cap->cmdchar = K_PS;

	// When the last char in the line was deleted then append. Detect this
	// by checking if the cursor moved to before the Visual area.
	if (*ml_get_cursor() != NUL && LT_POS(curwin->w_cursor, old_pos)
				       && LT_POS(curwin->w_cursor, old_visual))
	    inc_cursor();

	// Insert to replace the deleted text with the pasted text.
	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
    }
    else if (!checkclearopq(cap->oap))
    {
	switch (cap->cmdchar)
	{
	    case 'A':	// "A"ppend after the line
		set_cursor_for_append_to_line();
		break;

	    case 'I':	// "I"nsert before the first non-blank
		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
		    beginline(BL_WHITE);
		else
		    beginline(BL_WHITE|BL_FIX);
		break;

	    case K_PS:
		// Bracketed paste works like "a"ppend, unless the cursor is in
		// the first column, then it inserts.
		if (curwin->w_cursor.col == 0)
		    break;
		// FALLTHROUGH

	    case 'a':	// "a"ppend is like "i"nsert on the next character.
		// increment coladd when in virtual space, increment the
		// column otherwise, also to append after an unprintable char
		if (virtual_active()
			&& (curwin->w_cursor.coladd > 0
			    || *ml_get_cursor() == NUL
			    || *ml_get_cursor() == TAB))
		    curwin->w_cursor.coladd++;
		else if (*ml_get_cursor() != NUL)
		    inc_cursor();
		break;
	}

	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
	{
	    int save_State = State;

	    // Pretend Insert mode here to allow the cursor on the
	    // character past the end of the line
	    State = INSERT;
	    coladvance(getviscol());
	    State = save_State;
	}

	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
    }
    else if (cap->cmdchar == K_PS)
	// drop the pasted text
	bracketed_paste(PASTE_INSERT, TRUE, NULL);
}

Project: vim
File: normal.c

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

    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
	cmd_result = do_cmdline(NULL, is_cmdkey ? getcmdkeycmd : getexline, NULL,
			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);

	// 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);
    }
}

Project: vim
File: normal.c

nv_brackets(cmdarg_T *cap)
{
    pos_T	new_pos = {0, 0, 0};
    pos_T	prev_pos;
    pos_T	*pos = NULL;	    // init for GCC
    pos_T	old_pos;	    // cursor position before command
    int		flag;
    long	n;
    int		findc;
    int		c;

    cap->oap->motion_type = MCHAR;
    cap->oap->inclusive = FALSE;
    old_pos = curwin->w_cursor;
    curwin->w_cursor.coladd = 0;    // TODO: don't do this for an error.

#ifdef FEAT_SEARCHPATH
    /*
     * "[f" or "]f" : Edit file under the cursor (same as "gf")
     */
    if (cap->nchar == 'f')
	nv_gotofile(cap);
    else
#endif

#ifdef FEAT_FIND_ID
    /*
     * Find the occurrence(s) of the identifier or define under cursor
     * in current and included files or jump to the first occurrence.
     *
     *			search	     list	    jump
     *		      fwd   bwd    fwd	 bwd	 fwd	bwd
     * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
     * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
     */
    if (vim_strchr((char_u *)
# ifdef EBCDIC
		"iI\005dD\067",
# else
		"iI\011dD\004",
# endif
		cap->nchar) != NULL)
    {
	char_u	*ptr;
	int	len;

	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
	    clearop(cap->oap);
	else
	{
	    find_pattern_in_path(ptr, 0, len, TRUE,
		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
		cap->count1,
		isupper(cap->nchar) ? ACTION_SHOW_ALL :
			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
		(linenr_T)MAXLNUM);
	    curwin->w_set_curswant = TRUE;
	}
    }
    else
#endif

    /*
     * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
     * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
     * "[/", "[*", "]/", "]*": go to Nth comment start/end.
     * "[m" or "]m" search for prev/next start of (Java) method.
     * "[M" or "]M" search for prev/next end of (Java) method.
     */
    if (  (cap->cmdchar == '['
		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
	    || (cap->cmdchar == ']'
		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
    {
	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
	}
    }

    /*
     * "[[", "[]", "]]" and "][": move to start or end of function
     */
    else if (cap->nchar == '[' || cap->nchar == ']')
    {
	if (cap->nchar == cap->cmdchar)		    // "]]" or "[["
	    flag = '{';
	else
	    flag = '}';		    // "][" or "[]"

	curwin->w_set_curswant = TRUE;
	/*
	 * Imitate strange Vi behaviour: When using "]]" with an operator
	 * we also stop at '}'.
	 */
	if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
	      (cap->oap->op_type != OP_NOP
				      && cap->arg == FORWARD && flag == '{')))
	    clearopbeep(cap->oap);
	else
	{
	    if (cap->oap->op_type == OP_NOP)
		beginline(BL_WHITE | BL_FIX);
#ifdef FEAT_FOLDING
	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
		foldOpenCursor();
#endif
	}
    }

    /*
     * "[p", "[P", "]P" and "]p": put with indent adjustment
     */
    else if (cap->nchar == 'p' || cap->nchar == 'P')
    {
	nv_put_opt(cap, TRUE);
    }

    /*
     * "['", "[`", "]'" and "]`": jump to next mark
     */
    else if (cap->nchar == '\'' || cap->nchar == '`')
    {
	pos = &curwin->w_cursor;
	for (n = cap->count1; n > 0; --n)
	{
	    prev_pos = *pos;
	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
							  cap->nchar == '\'');
	    if (pos == NULL)
		break;
	}
	if (pos == NULL)
	    pos = &prev_pos;
	nv_cursormark(cap, cap->nchar == '\'', pos);
    }

    /*
     * [ or ] followed by a middle mouse click: put selected text with
     * indent adjustment.  Any other button just does as usual.
     */
    else if (cap->nchar >= K_RIGHTRELEASE && cap->nchar <= K_LEFTMOUSE)
    {
	(void)do_mouse(cap->oap, cap->nchar,
		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
		       cap->count1, PUT_FIXINDENT);
    }

#ifdef FEAT_FOLDING
    /*
     * "[z" and "]z": move to start or end of open fold.
     */
    else if (cap->nchar == 'z')
    {
	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
							 cap->count1) == FAIL)
	    clearopbeep(cap->oap);
    }
#endif

#ifdef FEAT_DIFF
    /*
     * "[c" and "]c": move to next or previous diff-change.
     */
    else if (cap->nchar == 'c')
    {
	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
							 cap->count1) == FAIL)
	    clearopbeep(cap->oap);
    }
#endif

#ifdef FEAT_SPELL
    /*
     * "[s", "[S", "]s" and "]S": move to next spell error.
     */
    else if (cap->nchar == 's' || cap->nchar == 'S')
    {
	setpcmark();
	for (n = 0; n < cap->count1; ++n)
	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
	    {
		clearopbeep(cap->oap);
		break;
	    }
	    else
		curwin->w_set_curswant = TRUE;
# ifdef FEAT_FOLDING
	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
	    foldOpenCursor();
# endif
    }
#endif

    // Not a valid cap->nchar.
    else
	clearopbeep(cap->oap);
}

Project: vim
File: normal.c

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 = 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,
							   (long)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);
    }
}

Project: vim
File: normal.c

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

Project: vim
File: normal.c

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

Project: vim
File: normal.c

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 = INSERT;
	coladvance((colnr_T)MAXCOL);
	State = save_State;
    }
    else
	curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
}

Project: vim
File: normal.c

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
}

Project: vim
File: normal.c

end_visual_mode_keep_button()
{
#ifdef FEAT_CLIPBOARD
    /*
     * If we are using the clipboard, then remember what was selected in case
     * we need to paste it somewhere while we still own the selection.
     * Only do this when the clipboard is already owned.  Don't want to grab
     * the selection when hitting ESC.
     */
    if (clip_star.available && clip_star.owned)
	clip_auto_select();

# if defined(FEAT_EVAL)
    // Emit a TextYankPost for the automatic copy of the selection into the
    // star and/or plus register.
    if (has_textyankpost())
    {
	if (clip_isautosel_star())
	    call_yank_do_autocmd('*');
	if (clip_isautosel_plus())
	    call_yank_do_autocmd('+');
    }
# endif
#endif

    VIsual_active = FALSE;
    setmouse();
    mouse_dragging = 0;

    // Save the current VIsual area for '< and '> marks, and "gv"
    curbuf->b_visual.vi_mode = VIsual_mode;
    curbuf->b_visual.vi_start = VIsual;
    curbuf->b_visual.vi_end = curwin->w_cursor;
    curbuf->b_visual.vi_curswant = curwin->w_curswant;
#ifdef FEAT_EVAL
    curbuf->b_visual_mode_eval = VIsual_mode;
#endif
    if (!virtual_active())
	curwin->w_cursor.coladd = 0;
    may_clear_cmdline();

    adjust_cursor_eol();
}

Project: vim
File: normal.c

nv_g_cmd(cmdarg_T *cap)
{
    oparg_T	*oap = cap->oap;
    pos_T	tpos;
    int		i;
    int		flag = FALSE;

    switch (cap->nchar)
    {
    case Ctrl_A:
    case Ctrl_X:
#ifdef MEM_PROFILE
    /*
     * "g^A": dump log of used memory.
     */
	if (!VIsual_active && cap->nchar == Ctrl_A)
	    vim_mem_profile_dump();
	else
#endif
    /*
     * "g^A/g^X": sequentially increment visually selected region
     */
	     if (VIsual_active)
	{
	    cap->arg = TRUE;
	    cap->cmdchar = cap->nchar;
	    cap->nchar = NUL;
	    nv_addsub(cap);
	}
	else
	    clearopbeep(oap);
	break;

    /*
     * "gR": Enter virtual replace mode.
     */
    case 'R':
	cap->arg = TRUE;
	nv_Replace(cap);
	break;

    case 'r':
	nv_vreplace(cap);
	break;

    case '&':
	do_cmdline_cmd((char_u *)"%s//~/&");
	break;

    /*
     * "gv": Reselect the previous Visual area.  If Visual already active,
     *	     exchange previous and current Visual area.
     */
    case 'v':
	if (checkclearop(oap))
	    break;

	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();
	else
	{
	    // 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;
	    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();
	}
	break;
    /*
     * "gV": Don't reselect the previous Visual area after a Select mode
     *	     mapping of menu.
     */
    case 'V':
	VIsual_reselect = FALSE;
	break;

    /*
     * "gh":  start Select mode.
     * "gH":  start Select line mode.
     * "g^H": start Select block mode.
     */
    case K_BS:
	cap->nchar = Ctrl_H;
	// FALLTHROUGH
    case 'h':
    case 'H':
    case Ctrl_H:
# ifdef EBCDIC
	// EBCDIC: 'v'-'h' != '^v'-'^h'
	if (cap->nchar == Ctrl_H)
	    cap->cmdchar = Ctrl_V;
	else
# endif
	cap->cmdchar = cap->nchar + ('v' - 'h');
	cap->arg = TRUE;
	nv_visual(cap);
	break;

    // "gn", "gN" visually select next/previous search match
    // "gn" selects next match
    // "gN" selects previous match
    case 'N':
    case 'n':
	if (!current_search(cap->count1, cap->nchar == 'n'))
	    clearopbeep(oap);
	break;

    /*
     * "gj" and "gk" two new funny movement keys -- up and down
     * movement based on *screen* line rather than *file* line.
     */
    case 'j':
    case K_DOWN:
	// with 'nowrap' it works just like the normal "j" command.
	if (!curwin->w_p_wrap)
	{
	    oap->motion_type = MLINE;
	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
	}
	else
	    i = nv_screengo(oap, FORWARD, cap->count1);
	if (i == FAIL)
	    clearopbeep(oap);
	break;

    case 'k':
    case K_UP:
	// with 'nowrap' it works just like the normal "k" command.
	if (!curwin->w_p_wrap)
	{
	    oap->motion_type = MLINE;
	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
	}
	else
	    i = nv_screengo(oap, BACKWARD, cap->count1);
	if (i == FAIL)
	    clearopbeep(oap);
	break;

    /*
     * "gJ": join two lines without inserting a space.
     */
    case 'J':
	nv_join(cap);
	break;

    /*
     * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
     * "gm": middle of "g0" and "g$".
     */
    case '^':
	flag = TRUE;
	// FALLTHROUGH

    case '0':
    case 'm':
    case K_HOME:
    case K_KHOME:
	oap->motion_type = MCHAR;
	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;
	break;

    case 'M':
	{
	    char_u  *ptr = ml_get_curline();

	    oap->motion_type = MCHAR;
	    oap->inclusive = FALSE;
	    if (has_mbyte)
		i = mb_string2cells(ptr, (int)STRLEN(ptr));
	    else
		i = (int)STRLEN(ptr);
	    if (cap->count0 > 0 && cap->count0 <= 100)
		coladvance((colnr_T)(i * cap->count0 / 100));
	    else
		coladvance((colnr_T)(i / 2));
	    curwin->w_set_curswant = TRUE;
	}
	break;

    case '_':
	// "g_": to the last non-blank character in the line or <count> lines
	// downward.
	cap->oap->motion_type = MCHAR;
	cap->oap->inclusive = TRUE;
	curwin->w_curswant = MAXCOL;
	if (cursor_down((long)(cap->count1 - 1),
					 cap->oap->op_type == OP_NOP) == FAIL)
	    clearopbeep(cap->oap);
	else
	{
	    char_u  *ptr = ml_get_curline();

	    // In Visual mode we may end up after the line.
	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
		--curwin->w_cursor.col;

	    // Decrease the cursor column until it's on a non-blank.
	    while (curwin->w_cursor.col > 0
				    && VIM_ISWHITE(ptr[curwin->w_cursor.col]))
		--curwin->w_cursor.col;
	    curwin->w_set_curswant = TRUE;
	    adjust_for_sel(cap);
	}
	break;

    case '$':
    case K_END:
    case K_KEND:
	{
	    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;
	    }
	}
	break;

    /*
     * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
     */
    case '*':
    case '#':
#if POUND != '#'
    case POUND:		// pound sign (sometimes equal to '#')
#endif
    case Ctrl_RSB:		// :tag or :tselect for current identifier
    case ']':			// :tselect for current identifier
	nv_ident(cap);
	break;

    /*
     * ge and gE: go back to end of word
     */
    case 'e':
    case 'E':
	oap->motion_type = MCHAR;
	curwin->w_set_curswant = TRUE;
	oap->inclusive = TRUE;
	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
	    clearopbeep(oap);
	break;

    /*
     * "g CTRL-G": display info about cursor position
     */
    case Ctrl_G:
	cursor_pos_info(NULL);
	break;

    /*
     * "gi": start Insert at the last position.
     */
    case 'i':
	if (curbuf->b_last_insert.lnum != 0)
	{
	    curwin->w_cursor = curbuf->b_last_insert;
	    check_cursor_lnum();
	    i = (int)STRLEN(ml_get_curline());
	    if (curwin->w_cursor.col > (colnr_T)i)
	    {
		if (virtual_active())
		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
		curwin->w_cursor.col = i;
	    }
	}
	cap->cmdchar = 'i';
	nv_edit(cap);
	break;

    /*
     * "gI": Start insert in column 1.
     */
    case 'I':
	beginline(0);
	if (!checkclearopq(oap))
	    invoke_edit(cap, FALSE, 'g', FALSE);
	break;

#ifdef FEAT_SEARCHPATH
    /*
     * "gf": goto file, edit file under cursor
     * "]f" and "[f": can also be used.
     */
    case 'f':
    case 'F':
	nv_gotofile(cap);
	break;
#endif

	// "g'm" and "g`m": jump to mark without setting pcmark
    case '\'':
	cap->arg = TRUE;
	// FALLTHROUGH
    case '`':
	nv_gomark(cap);
	break;

    /*
     * "gs": Goto sleep.
     */
    case 's':
	do_sleep(cap->count1 * 1000L, FALSE);
	break;

    /*
     * "ga": Display the ascii value of the character under the
     * cursor.	It is displayed in decimal, hex, and octal. -- webb
     */
    case 'a':
	do_ascii(NULL);
	break;

    /*
     * "g8": Display the bytes used for the UTF-8 character under the
     * cursor.	It is displayed in hex.
     * "8g8" finds illegal byte sequence.
     */
    case '8':
	if (cap->count0 == 8)
	    utf_find_illegal();
	else
	    show_utf8();
	break;

    // "g<": show scrollback text
    case '<':
	show_sb_text();
	break;

    /*
     * "gg": Goto the first line in file.  With a count it goes to
     * that line number like for "G". -- webb
     */
    case 'g':
	cap->arg = FALSE;
	nv_goto(cap);
	break;

    /*
     *	 Two-character operators:
     *	 "gq"	    Format text
     *	 "gw"	    Format text and keep cursor position
     *	 "g~"	    Toggle the case of the text.
     *	 "gu"	    Change text to lower case.
     *	 "gU"	    Change text to upper case.
     *   "g?"	    rot13 encoding
     *   "g@"	    call 'operatorfunc'
     */
    case 'q':
    case 'w':
	oap->cursor_start = curwin->w_cursor;
	// FALLTHROUGH
    case '~':
    case 'u':
    case 'U':
    case '?':
    case '@':
	nv_operator(cap);
	break;

    /*
     * "gd": Find first occurrence of pattern under the cursor in the
     *	 current function
     * "gD": idem, but in the current file.
     */
    case 'd':
    case 'D':
	nv_gd(oap, cap->nchar, (int)cap->count0);
	break;

    /*
     * g<*Mouse> : <C-*mouse>
     */
    case K_MIDDLEMOUSE:
    case K_MIDDLEDRAG:
    case K_MIDDLERELEASE:
    case K_LEFTMOUSE:
    case K_LEFTDRAG:
    case K_LEFTRELEASE:
    case K_MOUSEMOVE:
    case K_RIGHTMOUSE:
    case K_RIGHTDRAG:
    case K_RIGHTRELEASE:
    case K_X1MOUSE:
    case K_X1DRAG:
    case K_X1RELEASE:
    case K_X2MOUSE:
    case K_X2DRAG:
    case K_X2RELEASE:
	mod_mask = MOD_MASK_CTRL;
	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
	break;

    case K_IGNORE:
	break;

    /*
     * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
     */
    case 'p':
    case 'P':
	nv_put(cap);
	break;

#ifdef FEAT_BYTEOFF
    // "go": goto byte count from start of buffer
    case 'o':
	goto_byte(cap->count0);
	break;
#endif

    // "gQ": improved Ex mode
    case 'Q':
	if (text_locked())
	{
	    clearopbeep(cap->oap);
	    text_locked_msg();
	    break;
	}

	if (!checkclearopq(oap))
	    do_exmode(TRUE);
	break;

#ifdef FEAT_JUMPLIST
    case ',':
	nv_pcmark(cap);
	break;

    case ';':
	cap->count1 = -cap->count1;
	nv_pcmark(cap);
	break;
#endif

    case 't':
	if (!checkclearop(oap))
	    goto_tabpage((int)cap->count0);
	break;
    case 'T':
	if (!checkclearop(oap))
	    goto_tabpage(-(int)cap->count1);
	break;

    case TAB:
	if (!checkclearop(oap) && goto_tabpage_lastused() == FAIL)
	    clearopbeep(oap);
	break;

    case '+':
    case '-': // "g+" and "g-": undo or redo along the timeline
	if (!checkclearopq(oap))
	    undo_time(cap->nchar == '-' ? -cap->count1 : cap->count1,
							 FALSE, FALSE, FALSE);
	break;

    default:
	clearopbeep(oap);
	break;
    }
}

Project: vim
File: normal.c

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;
}

Project: vim
File: normal.c

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;
    }
}

Project: vim
File: normal.c

check_scrollbind(linenr_T topline_diff, long leftcol_diff)
{
    int		want_ver;
    int		want_hor;
    win_T	*old_curwin = curwin;
    buf_T	*old_curbuf = curbuf;
    int		old_VIsual_select = VIsual_select;
    int		old_VIsual_active = VIsual_active;
    colnr_T	tgt_leftcol = curwin->w_leftcol;
    long	topline;
    long	y;

    /*
     * check 'scrollopt' string for vertical and horizontal scroll options
     */
    want_ver = (vim_strchr(p_sbo, 'v') && topline_diff != 0);
#ifdef FEAT_DIFF
    want_ver |= old_curwin->w_p_diff;
#endif
    want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || topline_diff != 0));

    /*
     * loop through the scrollbound windows and scroll accordingly
     */
    VIsual_select = VIsual_active = 0;
    FOR_ALL_WINDOWS(curwin)
    {
	curbuf = curwin->w_buffer;
	// skip original window  and windows with 'noscrollbind'
	if (curwin != old_curwin && curwin->w_p_scb)
	{
	    /*
	     * do the vertical scroll
	     */
	    if (want_ver)
	    {
#ifdef FEAT_DIFF
		if (old_curwin->w_p_diff && curwin->w_p_diff)
		{
		    diff_set_topline(old_curwin, curwin);
		}
		else
#endif
		{
		    curwin->w_scbind_pos += topline_diff;
		    topline = curwin->w_scbind_pos;
		    if (topline > curbuf->b_ml.ml_line_count)
			topline = curbuf->b_ml.ml_line_count;
		    if (topline < 1)
			topline = 1;

		    y = topline - curwin->w_topline;
		    if (y > 0)
			scrollup(y, FALSE);
		    else
			scrolldown(-y, FALSE);
		}

		redraw_later(VALID);
		cursor_correct();
		curwin->w_redr_status = TRUE;
	    }

	    /*
	     * do the horizontal scroll
	     */
	    if (want_hor && curwin->w_leftcol != tgt_leftcol)
	    {
		curwin->w_leftcol = tgt_leftcol;
		leftcol_changed();
	    }
	}
    }

    /*
     * reset current-window
     */
    VIsual_select = old_VIsual_select;
    VIsual_active = old_VIsual_active;
    curwin = old_curwin;
    curbuf = old_curbuf;
}