xref: /vim-8.2.3635/src/normal.c (revision acc22406)
1 /* vi:set ts=8 sts=4 sw=4 noet:
2  *
3  * VIM - Vi IMproved	by Bram Moolenaar
4  *
5  * Do ":help uganda"  in Vim to read copying and usage conditions.
6  * Do ":help credits" in Vim to see a list of people who contributed.
7  * See README.txt for an overview of the Vim source code.
8  */
9 /*
10  * normal.c:	Contains the main routine for processing characters in command
11  *		mode.  Communicates closely with the code in ops.c to handle
12  *		the operators.
13  */
14 
15 #include "vim.h"
16 
17 static int	VIsual_mode_orig = NUL;		// saved Visual mode
18 static int	restart_VIsual_select = 0;
19 
20 #ifdef FEAT_EVAL
21 static void	set_vcount_ca(cmdarg_T *cap, int *set_prevcount);
22 #endif
23 static int	nv_compare(const void *s1, const void *s2);
24 static void	unshift_special(cmdarg_T *cap);
25 #ifdef FEAT_CMDL_INFO
26 static void	del_from_showcmd(int);
27 #endif
28 
29 /*
30  * nv_*(): functions called to handle Normal and Visual mode commands.
31  * n_*(): functions called to handle Normal mode commands.
32  * v_*(): functions called to handle Visual mode commands.
33  */
34 static void	nv_ignore(cmdarg_T *cap);
35 static void	nv_nop(cmdarg_T *cap);
36 static void	nv_error(cmdarg_T *cap);
37 static void	nv_help(cmdarg_T *cap);
38 static void	nv_addsub(cmdarg_T *cap);
39 static void	nv_page(cmdarg_T *cap);
40 static void	nv_zet(cmdarg_T *cap);
41 #ifdef FEAT_GUI
42 static void	nv_ver_scrollbar(cmdarg_T *cap);
43 static void	nv_hor_scrollbar(cmdarg_T *cap);
44 #endif
45 #ifdef FEAT_GUI_TABLINE
46 static void	nv_tabline(cmdarg_T *cap);
47 static void	nv_tabmenu(cmdarg_T *cap);
48 #endif
49 static void	nv_exmode(cmdarg_T *cap);
50 static void	nv_colon(cmdarg_T *cap);
51 static void	nv_ctrlg(cmdarg_T *cap);
52 static void	nv_ctrlh(cmdarg_T *cap);
53 static void	nv_clear(cmdarg_T *cap);
54 static void	nv_ctrlo(cmdarg_T *cap);
55 static void	nv_hat(cmdarg_T *cap);
56 static void	nv_Zet(cmdarg_T *cap);
57 static void	nv_ident(cmdarg_T *cap);
58 static void	nv_tagpop(cmdarg_T *cap);
59 static void	nv_scroll(cmdarg_T *cap);
60 static void	nv_right(cmdarg_T *cap);
61 static void	nv_left(cmdarg_T *cap);
62 static void	nv_up(cmdarg_T *cap);
63 static void	nv_down(cmdarg_T *cap);
64 static void	nv_end(cmdarg_T *cap);
65 static void	nv_dollar(cmdarg_T *cap);
66 static void	nv_search(cmdarg_T *cap);
67 static void	nv_next(cmdarg_T *cap);
68 static int	normal_search(cmdarg_T *cap, int dir, char_u *pat, int opt, int *wrapped);
69 static void	nv_csearch(cmdarg_T *cap);
70 static void	nv_brackets(cmdarg_T *cap);
71 static void	nv_percent(cmdarg_T *cap);
72 static void	nv_brace(cmdarg_T *cap);
73 static void	nv_mark(cmdarg_T *cap);
74 static void	nv_findpar(cmdarg_T *cap);
75 static void	nv_undo(cmdarg_T *cap);
76 static void	nv_kundo(cmdarg_T *cap);
77 static void	nv_Replace(cmdarg_T *cap);
78 static void	nv_replace(cmdarg_T *cap);
79 static void	nv_cursormark(cmdarg_T *cap, int flag, pos_T *pos);
80 static void	v_visop(cmdarg_T *cap);
81 static void	nv_subst(cmdarg_T *cap);
82 static void	nv_abbrev(cmdarg_T *cap);
83 static void	nv_optrans(cmdarg_T *cap);
84 static void	nv_gomark(cmdarg_T *cap);
85 static void	nv_pcmark(cmdarg_T *cap);
86 static void	nv_regname(cmdarg_T *cap);
87 static void	nv_visual(cmdarg_T *cap);
88 static void	n_start_visual_mode(int c);
89 static void	nv_window(cmdarg_T *cap);
90 static void	nv_suspend(cmdarg_T *cap);
91 static void	nv_g_cmd(cmdarg_T *cap);
92 static void	nv_dot(cmdarg_T *cap);
93 static void	nv_redo(cmdarg_T *cap);
94 static void	nv_Undo(cmdarg_T *cap);
95 static void	nv_tilde(cmdarg_T *cap);
96 static void	nv_operator(cmdarg_T *cap);
97 #ifdef FEAT_EVAL
98 static void	set_op_var(int optype);
99 #endif
100 static void	nv_lineop(cmdarg_T *cap);
101 static void	nv_home(cmdarg_T *cap);
102 static void	nv_pipe(cmdarg_T *cap);
103 static void	nv_bck_word(cmdarg_T *cap);
104 static void	nv_wordcmd(cmdarg_T *cap);
105 static void	nv_beginline(cmdarg_T *cap);
106 static void	adjust_cursor(oparg_T *oap);
107 static void	adjust_for_sel(cmdarg_T *cap);
108 static void	nv_select(cmdarg_T *cap);
109 static void	nv_goto(cmdarg_T *cap);
110 static void	nv_normal(cmdarg_T *cap);
111 static void	nv_esc(cmdarg_T *oap);
112 static void	nv_edit(cmdarg_T *cap);
113 static void	invoke_edit(cmdarg_T *cap, int repl, int cmd, int startln);
114 #ifdef FEAT_TEXTOBJ
115 static void	nv_object(cmdarg_T *cap);
116 #endif
117 static void	nv_record(cmdarg_T *cap);
118 static void	nv_at(cmdarg_T *cap);
119 static void	nv_halfpage(cmdarg_T *cap);
120 static void	nv_join(cmdarg_T *cap);
121 static void	nv_put(cmdarg_T *cap);
122 static void	nv_put_opt(cmdarg_T *cap, int fix_indent);
123 static void	nv_open(cmdarg_T *cap);
124 #ifdef FEAT_NETBEANS_INTG
125 static void	nv_nbcmd(cmdarg_T *cap);
126 #endif
127 #ifdef FEAT_DND
128 static void	nv_drop(cmdarg_T *cap);
129 #endif
130 static void	nv_cursorhold(cmdarg_T *cap);
131 
132 static char *e_noident = N_("E349: No identifier under cursor");
133 
134 /*
135  * Function to be called for a Normal or Visual mode command.
136  * The argument is a cmdarg_T.
137  */
138 typedef void (*nv_func_T)(cmdarg_T *cap);
139 
140 // Values for cmd_flags.
141 #define NV_NCH	    0x01	  // may need to get a second char
142 #define NV_NCH_NOP  (0x02|NV_NCH) // get second char when no operator pending
143 #define NV_NCH_ALW  (0x04|NV_NCH) // always get a second char
144 #define NV_LANG	    0x08	// second char needs language adjustment
145 
146 #define NV_SS	    0x10	// may start selection
147 #define NV_SSS	    0x20	// may start selection with shift modifier
148 #define NV_STS	    0x40	// may stop selection without shift modif.
149 #define NV_RL	    0x80	// 'rightleft' modifies command
150 #define NV_KEEPREG  0x100	// don't clear regname
151 #define NV_NCW	    0x200	// not allowed in command-line window
152 
153 /*
154  * Generally speaking, every Normal mode command should either clear any
155  * pending operator (with *clearop*()), or set the motion type variable
156  * oap->motion_type.
157  *
158  * When a cursor motion command is made, it is marked as being a character or
159  * line oriented motion.  Then, if an operator is in effect, the operation
160  * becomes character or line oriented accordingly.
161  */
162 
163 /*
164  * This table contains one entry for every Normal or Visual mode command.
165  * The order doesn't matter, init_normal_cmds() will create a sorted index.
166  * It is faster when all keys from zero to '~' are present.
167  */
168 static const struct nv_cmd
169 {
170     int		cmd_char;	// (first) command character
171     nv_func_T   cmd_func;	// function for this command
172     short_u	cmd_flags;	// NV_ flags
173     short	cmd_arg;	// value for ca.arg
174 } nv_cmds[] =
175 {
176     {NUL,	nv_error,	0,			0},
177     {Ctrl_A,	nv_addsub,	0,			0},
178     {Ctrl_B,	nv_page,	NV_STS,			BACKWARD},
179     {Ctrl_C,	nv_esc,		0,			TRUE},
180     {Ctrl_D,	nv_halfpage,	0,			0},
181     {Ctrl_E,	nv_scroll_line,	0,			TRUE},
182     {Ctrl_F,	nv_page,	NV_STS,			FORWARD},
183     {Ctrl_G,	nv_ctrlg,	0,			0},
184     {Ctrl_H,	nv_ctrlh,	0,			0},
185     {Ctrl_I,	nv_pcmark,	0,			0},
186     {NL,	nv_down,	0,			FALSE},
187     {Ctrl_K,	nv_error,	0,			0},
188     {Ctrl_L,	nv_clear,	0,			0},
189     {CAR,	nv_down,	0,			TRUE},
190     {Ctrl_N,	nv_down,	NV_STS,			FALSE},
191     {Ctrl_O,	nv_ctrlo,	0,			0},
192     {Ctrl_P,	nv_up,		NV_STS,			FALSE},
193     {Ctrl_Q,	nv_visual,	0,			FALSE},
194     {Ctrl_R,	nv_redo,	0,			0},
195     {Ctrl_S,	nv_ignore,	0,			0},
196     {Ctrl_T,	nv_tagpop,	NV_NCW,			0},
197     {Ctrl_U,	nv_halfpage,	0,			0},
198     {Ctrl_V,	nv_visual,	0,			FALSE},
199     {'V',	nv_visual,	0,			FALSE},
200     {'v',	nv_visual,	0,			FALSE},
201     {Ctrl_W,	nv_window,	0,			0},
202     {Ctrl_X,	nv_addsub,	0,			0},
203     {Ctrl_Y,	nv_scroll_line,	0,			FALSE},
204     {Ctrl_Z,	nv_suspend,	0,			0},
205     {ESC,	nv_esc,		0,			FALSE},
206     {Ctrl_BSL,	nv_normal,	NV_NCH_ALW,		0},
207     {Ctrl_RSB,	nv_ident,	NV_NCW,			0},
208     {Ctrl_HAT,	nv_hat,		NV_NCW,			0},
209     {Ctrl__,	nv_error,	0,			0},
210     {' ',	nv_right,	0,			0},
211     {'!',	nv_operator,	0,			0},
212     {'"',	nv_regname,	NV_NCH_NOP|NV_KEEPREG,	0},
213     {'#',	nv_ident,	0,			0},
214     {'$',	nv_dollar,	0,			0},
215     {'%',	nv_percent,	0,			0},
216     {'&',	nv_optrans,	0,			0},
217     {'\'',	nv_gomark,	NV_NCH_ALW,		TRUE},
218     {'(',	nv_brace,	0,			BACKWARD},
219     {')',	nv_brace,	0,			FORWARD},
220     {'*',	nv_ident,	0,			0},
221     {'+',	nv_down,	0,			TRUE},
222     {',',	nv_csearch,	0,			TRUE},
223     {'-',	nv_up,		0,			TRUE},
224     {'.',	nv_dot,		NV_KEEPREG,		0},
225     {'/',	nv_search,	0,			FALSE},
226     {'0',	nv_beginline,	0,			0},
227     {'1',	nv_ignore,	0,			0},
228     {'2',	nv_ignore,	0,			0},
229     {'3',	nv_ignore,	0,			0},
230     {'4',	nv_ignore,	0,			0},
231     {'5',	nv_ignore,	0,			0},
232     {'6',	nv_ignore,	0,			0},
233     {'7',	nv_ignore,	0,			0},
234     {'8',	nv_ignore,	0,			0},
235     {'9',	nv_ignore,	0,			0},
236     {':',	nv_colon,	0,			0},
237     {';',	nv_csearch,	0,			FALSE},
238     {'<',	nv_operator,	NV_RL,			0},
239     {'=',	nv_operator,	0,			0},
240     {'>',	nv_operator,	NV_RL,			0},
241     {'?',	nv_search,	0,			FALSE},
242     {'@',	nv_at,		NV_NCH_NOP,		FALSE},
243     {'A',	nv_edit,	0,			0},
244     {'B',	nv_bck_word,	0,			1},
245     {'C',	nv_abbrev,	NV_KEEPREG,		0},
246     {'D',	nv_abbrev,	NV_KEEPREG,		0},
247     {'E',	nv_wordcmd,	0,			TRUE},
248     {'F',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
249     {'G',	nv_goto,	0,			TRUE},
250     {'H',	nv_scroll,	0,			0},
251     {'I',	nv_edit,	0,			0},
252     {'J',	nv_join,	0,			0},
253     {'K',	nv_ident,	0,			0},
254     {'L',	nv_scroll,	0,			0},
255     {'M',	nv_scroll,	0,			0},
256     {'N',	nv_next,	0,			SEARCH_REV},
257     {'O',	nv_open,	0,			0},
258     {'P',	nv_put,		0,			0},
259     {'Q',	nv_exmode,	NV_NCW,			0},
260     {'R',	nv_Replace,	0,			FALSE},
261     {'S',	nv_subst,	NV_KEEPREG,		0},
262     {'T',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
263     {'U',	nv_Undo,	0,			0},
264     {'W',	nv_wordcmd,	0,			TRUE},
265     {'X',	nv_abbrev,	NV_KEEPREG,		0},
266     {'Y',	nv_abbrev,	NV_KEEPREG,		0},
267     {'Z',	nv_Zet,		NV_NCH_NOP|NV_NCW,	0},
268     {'[',	nv_brackets,	NV_NCH_ALW,		BACKWARD},
269     {'\\',	nv_error,	0,			0},
270     {']',	nv_brackets,	NV_NCH_ALW,		FORWARD},
271     {'^',	nv_beginline,	0,			BL_WHITE | BL_FIX},
272     {'_',	nv_lineop,	0,			0},
273     {'`',	nv_gomark,	NV_NCH_ALW,		FALSE},
274     {'a',	nv_edit,	NV_NCH,			0},
275     {'b',	nv_bck_word,	0,			0},
276     {'c',	nv_operator,	0,			0},
277     {'d',	nv_operator,	0,			0},
278     {'e',	nv_wordcmd,	0,			FALSE},
279     {'f',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
280     {'g',	nv_g_cmd,	NV_NCH_ALW,		FALSE},
281     {'h',	nv_left,	NV_RL,			0},
282     {'i',	nv_edit,	NV_NCH,			0},
283     {'j',	nv_down,	0,			FALSE},
284     {'k',	nv_up,		0,			FALSE},
285     {'l',	nv_right,	NV_RL,			0},
286     {'m',	nv_mark,	NV_NCH_NOP,		0},
287     {'n',	nv_next,	0,			0},
288     {'o',	nv_open,	0,			0},
289     {'p',	nv_put,		0,			0},
290     {'q',	nv_record,	NV_NCH,			0},
291     {'r',	nv_replace,	NV_NCH_NOP|NV_LANG,	0},
292     {'s',	nv_subst,	NV_KEEPREG,		0},
293     {'t',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
294     {'u',	nv_undo,	0,			0},
295     {'w',	nv_wordcmd,	0,			FALSE},
296     {'x',	nv_abbrev,	NV_KEEPREG,		0},
297     {'y',	nv_operator,	0,			0},
298     {'z',	nv_zet,		NV_NCH_ALW,		0},
299     {'{',	nv_findpar,	0,			BACKWARD},
300     {'|',	nv_pipe,	0,			0},
301     {'}',	nv_findpar,	0,			FORWARD},
302     {'~',	nv_tilde,	0,			0},
303 
304     // pound sign
305     {POUND,	nv_ident,	0,			0},
306     {K_MOUSEUP, nv_mousescroll,	0,			MSCR_UP},
307     {K_MOUSEDOWN, nv_mousescroll, 0,			MSCR_DOWN},
308     {K_MOUSELEFT, nv_mousescroll, 0,			MSCR_LEFT},
309     {K_MOUSERIGHT, nv_mousescroll, 0,			MSCR_RIGHT},
310     {K_LEFTMOUSE, nv_mouse,	0,			0},
311     {K_LEFTMOUSE_NM, nv_mouse,	0,			0},
312     {K_LEFTDRAG, nv_mouse,	0,			0},
313     {K_LEFTRELEASE, nv_mouse,	0,			0},
314     {K_LEFTRELEASE_NM, nv_mouse, 0,			0},
315     {K_MOUSEMOVE, nv_mouse,	0,			0},
316     {K_MIDDLEMOUSE, nv_mouse,	0,			0},
317     {K_MIDDLEDRAG, nv_mouse,	0,			0},
318     {K_MIDDLERELEASE, nv_mouse,	0,			0},
319     {K_RIGHTMOUSE, nv_mouse,	0,			0},
320     {K_RIGHTDRAG, nv_mouse,	0,			0},
321     {K_RIGHTRELEASE, nv_mouse,	0,			0},
322     {K_X1MOUSE, nv_mouse,	0,			0},
323     {K_X1DRAG, nv_mouse,	0,			0},
324     {K_X1RELEASE, nv_mouse,	0,			0},
325     {K_X2MOUSE, nv_mouse,	0,			0},
326     {K_X2DRAG, nv_mouse,	0,			0},
327     {K_X2RELEASE, nv_mouse,	0,			0},
328     {K_IGNORE,	nv_ignore,	NV_KEEPREG,		0},
329     {K_NOP,	nv_nop,		0,			0},
330     {K_INS,	nv_edit,	0,			0},
331     {K_KINS,	nv_edit,	0,			0},
332     {K_BS,	nv_ctrlh,	0,			0},
333     {K_UP,	nv_up,		NV_SSS|NV_STS,		FALSE},
334     {K_S_UP,	nv_page,	NV_SS,			BACKWARD},
335     {K_DOWN,	nv_down,	NV_SSS|NV_STS,		FALSE},
336     {K_S_DOWN,	nv_page,	NV_SS,			FORWARD},
337     {K_LEFT,	nv_left,	NV_SSS|NV_STS|NV_RL,	0},
338     {K_S_LEFT,	nv_bck_word,	NV_SS|NV_RL,		0},
339     {K_C_LEFT,	nv_bck_word,	NV_SSS|NV_RL|NV_STS,	1},
340     {K_RIGHT,	nv_right,	NV_SSS|NV_STS|NV_RL,	0},
341     {K_S_RIGHT,	nv_wordcmd,	NV_SS|NV_RL,		FALSE},
342     {K_C_RIGHT,	nv_wordcmd,	NV_SSS|NV_RL|NV_STS,	TRUE},
343     {K_PAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
344     {K_KPAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
345     {K_PAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
346     {K_KPAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
347     {K_END,	nv_end,		NV_SSS|NV_STS,		FALSE},
348     {K_KEND,	nv_end,		NV_SSS|NV_STS,		FALSE},
349     {K_S_END,	nv_end,		NV_SS,			FALSE},
350     {K_C_END,	nv_end,		NV_SSS|NV_STS,		TRUE},
351     {K_HOME,	nv_home,	NV_SSS|NV_STS,		0},
352     {K_KHOME,	nv_home,	NV_SSS|NV_STS,		0},
353     {K_S_HOME,	nv_home,	NV_SS,			0},
354     {K_C_HOME,	nv_goto,	NV_SSS|NV_STS,		FALSE},
355     {K_DEL,	nv_abbrev,	0,			0},
356     {K_KDEL,	nv_abbrev,	0,			0},
357     {K_UNDO,	nv_kundo,	0,			0},
358     {K_HELP,	nv_help,	NV_NCW,			0},
359     {K_F1,	nv_help,	NV_NCW,			0},
360     {K_XF1,	nv_help,	NV_NCW,			0},
361     {K_SELECT,	nv_select,	0,			0},
362 #ifdef FEAT_GUI
363     {K_VER_SCROLLBAR, nv_ver_scrollbar, 0,		0},
364     {K_HOR_SCROLLBAR, nv_hor_scrollbar, 0,		0},
365 #endif
366 #ifdef FEAT_GUI_TABLINE
367     {K_TABLINE, nv_tabline,	0,			0},
368     {K_TABMENU, nv_tabmenu,	0,			0},
369 #endif
370 #ifdef FEAT_NETBEANS_INTG
371     {K_F21,	nv_nbcmd,	NV_NCH_ALW,		0},
372 #endif
373 #ifdef FEAT_DND
374     {K_DROP,	nv_drop,	NV_STS,			0},
375 #endif
376     {K_CURSORHOLD, nv_cursorhold, NV_KEEPREG,		0},
377     {K_PS,	nv_edit,	0,			0},
378 };
379 
380 // Number of commands in nv_cmds[].
381 #define NV_CMDS_SIZE (sizeof(nv_cmds) / sizeof(struct nv_cmd))
382 
383 // Sorted index of commands in nv_cmds[].
384 static short nv_cmd_idx[NV_CMDS_SIZE];
385 
386 // The highest index for which
387 // nv_cmds[idx].cmd_char == nv_cmd_idx[nv_cmds[idx].cmd_char]
388 static int nv_max_linear;
389 
390 /*
391  * Compare functions for qsort() below, that checks the command character
392  * through the index in nv_cmd_idx[].
393  */
394     static int
395 nv_compare(const void *s1, const void *s2)
396 {
397     int		c1, c2;
398 
399     // The commands are sorted on absolute value.
400     c1 = nv_cmds[*(const short *)s1].cmd_char;
401     c2 = nv_cmds[*(const short *)s2].cmd_char;
402     if (c1 < 0)
403 	c1 = -c1;
404     if (c2 < 0)
405 	c2 = -c2;
406     return c1 - c2;
407 }
408 
409 /*
410  * Initialize the nv_cmd_idx[] table.
411  */
412     void
413 init_normal_cmds(void)
414 {
415     int		i;
416 
417     // Fill the index table with a one to one relation.
418     for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
419 	nv_cmd_idx[i] = i;
420 
421     // Sort the commands by the command character.
422     qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);
423 
424     // Find the first entry that can't be indexed by the command character.
425     for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
426 	if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
427 	    break;
428     nv_max_linear = i - 1;
429 }
430 
431 /*
432  * Search for a command in the commands table.
433  * Returns -1 for invalid command.
434  */
435     static int
436 find_command(int cmdchar)
437 {
438     int		i;
439     int		idx;
440     int		top, bot;
441     int		c;
442 
443     // A multi-byte character is never a command.
444     if (cmdchar >= 0x100)
445 	return -1;
446 
447     // We use the absolute value of the character.  Special keys have a
448     // negative value, but are sorted on their absolute value.
449     if (cmdchar < 0)
450 	cmdchar = -cmdchar;
451 
452     // If the character is in the first part: The character is the index into
453     // nv_cmd_idx[].
454     if (cmdchar <= nv_max_linear)
455 	return nv_cmd_idx[cmdchar];
456 
457     // Perform a binary search.
458     bot = nv_max_linear + 1;
459     top = NV_CMDS_SIZE - 1;
460     idx = -1;
461     while (bot <= top)
462     {
463 	i = (top + bot) / 2;
464 	c = nv_cmds[nv_cmd_idx[i]].cmd_char;
465 	if (c < 0)
466 	    c = -c;
467 	if (cmdchar == c)
468 	{
469 	    idx = nv_cmd_idx[i];
470 	    break;
471 	}
472 	if (cmdchar > c)
473 	    bot = i + 1;
474 	else
475 	    top = i - 1;
476     }
477     return idx;
478 }
479 
480 /*
481  * Execute a command in Normal mode.
482  */
483     void
484 normal_cmd(
485     oparg_T	*oap,
486     int		toplevel UNUSED)	// TRUE when called from main()
487 {
488     cmdarg_T	ca;			// command arguments
489     int		c;
490     int		ctrl_w = FALSE;		// got CTRL-W command
491     int		old_col = curwin->w_curswant;
492 #ifdef FEAT_CMDL_INFO
493     int		need_flushbuf;		// need to call out_flush()
494 #endif
495     pos_T	old_pos;		// cursor position before command
496     int		mapped_len;
497     static int	old_mapped_len = 0;
498     int		idx;
499 #ifdef FEAT_EVAL
500     int		set_prevcount = FALSE;
501 #endif
502 
503     CLEAR_FIELD(ca);	// also resets ca.retval
504     ca.oap = oap;
505 
506     // Use a count remembered from before entering an operator.  After typing
507     // "3d" we return from normal_cmd() and come back here, the "3" is
508     // remembered in "opcount".
509     ca.opcount = opcount;
510 
511     /*
512      * If there is an operator pending, then the command we take this time
513      * will terminate it. Finish_op tells us to finish the operation before
514      * returning this time (unless the operation was cancelled).
515      */
516 #ifdef CURSOR_SHAPE
517     c = finish_op;
518 #endif
519     finish_op = (oap->op_type != OP_NOP);
520 #ifdef CURSOR_SHAPE
521     if (finish_op != c)
522     {
523 	ui_cursor_shape();		// may show different cursor shape
524 # ifdef FEAT_MOUSESHAPE
525 	update_mouseshape(-1);
526 # endif
527     }
528 #endif
529 
530     // When not finishing an operator and no register name typed, reset the
531     // count.
532     if (!finish_op && !oap->regname)
533     {
534 	ca.opcount = 0;
535 #ifdef FEAT_EVAL
536 	set_prevcount = TRUE;
537 #endif
538     }
539 
540     // Restore counts from before receiving K_CURSORHOLD.  This means after
541     // typing "3", handling K_CURSORHOLD and then typing "2" we get "32", not
542     // "3 * 2".
543     if (oap->prev_opcount > 0 || oap->prev_count0 > 0)
544     {
545 	ca.opcount = oap->prev_opcount;
546 	ca.count0 = oap->prev_count0;
547 	oap->prev_opcount = 0;
548 	oap->prev_count0 = 0;
549     }
550 
551     mapped_len = typebuf_maplen();
552 
553     State = NORMAL_BUSY;
554 #ifdef USE_ON_FLY_SCROLL
555     dont_scroll = FALSE;	// allow scrolling here
556 #endif
557 
558 #ifdef FEAT_EVAL
559     // Set v:count here, when called from main() and not a stuffed
560     // command, so that v:count can be used in an expression mapping
561     // when there is no count. Do set it for redo.
562     if (toplevel && readbuf1_empty())
563 	set_vcount_ca(&ca, &set_prevcount);
564 #endif
565 
566     /*
567      * Get the command character from the user.
568      */
569     c = safe_vgetc();
570     LANGMAP_ADJUST(c, get_real_state() != SELECTMODE);
571 
572     /*
573      * If a mapping was started in Visual or Select mode, remember the length
574      * of the mapping.  This is used below to not return to Insert mode for as
575      * long as the mapping is being executed.
576      */
577     if (restart_edit == 0)
578 	old_mapped_len = 0;
579     else if (old_mapped_len
580 		|| (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0))
581 	old_mapped_len = typebuf_maplen();
582 
583     if (c == NUL)
584 	c = K_ZERO;
585 
586     /*
587      * In Select mode, typed text replaces the selection.
588      */
589     if (VIsual_active
590 	    && VIsual_select
591 	    && (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
592     {
593 	// Fake a "c"hange command.  When "restart_edit" is set (e.g., because
594 	// 'insertmode' is set) fake a "d"elete command, Insert mode will
595 	// restart automatically.
596 	// Insert the typed character in the typeahead buffer, so that it can
597 	// be mapped in Insert mode.  Required for ":lmap" to work.
598 	ins_char_typebuf(vgetc_char, vgetc_mod_mask);
599 	if (restart_edit != 0)
600 	    c = 'd';
601 	else
602 	    c = 'c';
603 	msg_nowait = TRUE;	// don't delay going to insert mode
604 	old_mapped_len = 0;	// do go to Insert mode
605     }
606 
607 #ifdef FEAT_CMDL_INFO
608     need_flushbuf = add_to_showcmd(c);
609 #endif
610 
611 getcount:
612     if (!(VIsual_active && VIsual_select))
613     {
614 	/*
615 	 * Handle a count before a command and compute ca.count0.
616 	 * Note that '0' is a command and not the start of a count, but it's
617 	 * part of a count after other digits.
618 	 */
619 	while (    (c >= '1' && c <= '9')
620 		|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
621 	{
622 	    if (c == K_DEL || c == K_KDEL)
623 	    {
624 		ca.count0 /= 10;
625 #ifdef FEAT_CMDL_INFO
626 		del_from_showcmd(4);	// delete the digit and ~@%
627 #endif
628 	    }
629 	    else
630 		ca.count0 = ca.count0 * 10 + (c - '0');
631 	    if (ca.count0 < 0)	    // got too large!
632 		ca.count0 = 999999999L;
633 #ifdef FEAT_EVAL
634 	    // Set v:count here, when called from main() and not a stuffed
635 	    // command, so that v:count can be used in an expression mapping
636 	    // right after the count. Do set it for redo.
637 	    if (toplevel && readbuf1_empty())
638 		set_vcount_ca(&ca, &set_prevcount);
639 #endif
640 	    if (ctrl_w)
641 	    {
642 		++no_mapping;
643 		++allow_keys;		// no mapping for nchar, but keys
644 	    }
645 	    ++no_zero_mapping;		// don't map zero here
646 	    c = plain_vgetc();
647 	    LANGMAP_ADJUST(c, TRUE);
648 	    --no_zero_mapping;
649 	    if (ctrl_w)
650 	    {
651 		--no_mapping;
652 		--allow_keys;
653 	    }
654 #ifdef FEAT_CMDL_INFO
655 	    need_flushbuf |= add_to_showcmd(c);
656 #endif
657 	}
658 
659 	/*
660 	 * If we got CTRL-W there may be a/another count
661 	 */
662 	if (c == Ctrl_W && !ctrl_w && oap->op_type == OP_NOP)
663 	{
664 	    ctrl_w = TRUE;
665 	    ca.opcount = ca.count0;	// remember first count
666 	    ca.count0 = 0;
667 	    ++no_mapping;
668 	    ++allow_keys;		// no mapping for nchar, but keys
669 	    c = plain_vgetc();		// get next character
670 	    LANGMAP_ADJUST(c, TRUE);
671 	    --no_mapping;
672 	    --allow_keys;
673 #ifdef FEAT_CMDL_INFO
674 	    need_flushbuf |= add_to_showcmd(c);
675 #endif
676 	    goto getcount;		// jump back
677 	}
678     }
679 
680     if (c == K_CURSORHOLD)
681     {
682 	// Save the count values so that ca.opcount and ca.count0 are exactly
683 	// the same when coming back here after handling K_CURSORHOLD.
684 	oap->prev_opcount = ca.opcount;
685 	oap->prev_count0 = ca.count0;
686     }
687     else if (ca.opcount != 0)
688     {
689 	/*
690 	 * If we're in the middle of an operator (including after entering a
691 	 * yank buffer with '"') AND we had a count before the operator, then
692 	 * that count overrides the current value of ca.count0.
693 	 * What this means effectively, is that commands like "3dw" get turned
694 	 * into "d3w" which makes things fall into place pretty neatly.
695 	 * If you give a count before AND after the operator, they are
696 	 * multiplied.
697 	 */
698 	if (ca.count0)
699 	    ca.count0 *= ca.opcount;
700 	else
701 	    ca.count0 = ca.opcount;
702     }
703 
704     /*
705      * Always remember the count.  It will be set to zero (on the next call,
706      * above) when there is no pending operator.
707      * When called from main(), save the count for use by the "count" built-in
708      * variable.
709      */
710     ca.opcount = ca.count0;
711     ca.count1 = (ca.count0 == 0 ? 1 : ca.count0);
712 
713 #ifdef FEAT_EVAL
714     /*
715      * Only set v:count when called from main() and not a stuffed command.
716      * Do set it for redo.
717      */
718     if (toplevel && readbuf1_empty())
719 	set_vcount(ca.count0, ca.count1, set_prevcount);
720 #endif
721 
722     /*
723      * Find the command character in the table of commands.
724      * For CTRL-W we already got nchar when looking for a count.
725      */
726     if (ctrl_w)
727     {
728 	ca.nchar = c;
729 	ca.cmdchar = Ctrl_W;
730     }
731     else
732 	ca.cmdchar = c;
733     idx = find_command(ca.cmdchar);
734     if (idx < 0)
735     {
736 	// Not a known command: beep.
737 	clearopbeep(oap);
738 	goto normal_end;
739     }
740 
741     if (text_locked() && (nv_cmds[idx].cmd_flags & NV_NCW))
742     {
743 	// This command is not allowed while editing a cmdline: beep.
744 	clearopbeep(oap);
745 	text_locked_msg();
746 	goto normal_end;
747     }
748     if ((nv_cmds[idx].cmd_flags & NV_NCW) && curbuf_locked())
749 	goto normal_end;
750 
751     /*
752      * In Visual/Select mode, a few keys are handled in a special way.
753      */
754     if (VIsual_active)
755     {
756 	// when 'keymodel' contains "stopsel" may stop Select/Visual mode
757 	if (km_stopsel
758 		&& (nv_cmds[idx].cmd_flags & NV_STS)
759 		&& !(mod_mask & MOD_MASK_SHIFT))
760 	{
761 	    end_visual_mode();
762 	    redraw_curbuf_later(INVERTED);
763 	}
764 
765 	// Keys that work different when 'keymodel' contains "startsel"
766 	if (km_startsel)
767 	{
768 	    if (nv_cmds[idx].cmd_flags & NV_SS)
769 	    {
770 		unshift_special(&ca);
771 		idx = find_command(ca.cmdchar);
772 		if (idx < 0)
773 		{
774 		    // Just in case
775 		    clearopbeep(oap);
776 		    goto normal_end;
777 		}
778 	    }
779 	    else if ((nv_cmds[idx].cmd_flags & NV_SSS)
780 					       && (mod_mask & MOD_MASK_SHIFT))
781 		mod_mask &= ~MOD_MASK_SHIFT;
782 	}
783     }
784 
785 #ifdef FEAT_RIGHTLEFT
786     if (curwin->w_p_rl && KeyTyped && !KeyStuffed
787 					  && (nv_cmds[idx].cmd_flags & NV_RL))
788     {
789 	// Invert horizontal movements and operations.  Only when typed by the
790 	// user directly, not when the result of a mapping or "x" translated
791 	// to "dl".
792 	switch (ca.cmdchar)
793 	{
794 	    case 'l':	    ca.cmdchar = 'h'; break;
795 	    case K_RIGHT:   ca.cmdchar = K_LEFT; break;
796 	    case K_S_RIGHT: ca.cmdchar = K_S_LEFT; break;
797 	    case K_C_RIGHT: ca.cmdchar = K_C_LEFT; break;
798 	    case 'h':	    ca.cmdchar = 'l'; break;
799 	    case K_LEFT:    ca.cmdchar = K_RIGHT; break;
800 	    case K_S_LEFT:  ca.cmdchar = K_S_RIGHT; break;
801 	    case K_C_LEFT:  ca.cmdchar = K_C_RIGHT; break;
802 	    case '>':	    ca.cmdchar = '<'; break;
803 	    case '<':	    ca.cmdchar = '>'; break;
804 	}
805 	idx = find_command(ca.cmdchar);
806     }
807 #endif
808 
809     /*
810      * Get an additional character if we need one.
811      */
812     if ((nv_cmds[idx].cmd_flags & NV_NCH)
813 	    && (((nv_cmds[idx].cmd_flags & NV_NCH_NOP) == NV_NCH_NOP
814 		    && oap->op_type == OP_NOP)
815 		|| (nv_cmds[idx].cmd_flags & NV_NCH_ALW) == NV_NCH_ALW
816 		|| (ca.cmdchar == 'q'
817 		    && oap->op_type == OP_NOP
818 		    && reg_recording == 0
819 		    && reg_executing == 0)
820 		|| ((ca.cmdchar == 'a' || ca.cmdchar == 'i')
821 		    && (oap->op_type != OP_NOP || VIsual_active))))
822     {
823 	int	*cp;
824 	int	repl = FALSE;	// get character for replace mode
825 	int	lit = FALSE;	// get extra character literally
826 	int	langmap_active = FALSE;    // using :lmap mappings
827 	int	lang;		// getting a text character
828 #ifdef HAVE_INPUT_METHOD
829 	int	save_smd;	// saved value of p_smd
830 #endif
831 
832 	++no_mapping;
833 	++allow_keys;		// no mapping for nchar, but allow key codes
834 	// Don't generate a CursorHold event here, most commands can't handle
835 	// it, e.g., nv_replace(), nv_csearch().
836 	did_cursorhold = TRUE;
837 	if (ca.cmdchar == 'g')
838 	{
839 	    /*
840 	     * For 'g' get the next character now, so that we can check for
841 	     * "gr", "g'" and "g`".
842 	     */
843 	    ca.nchar = plain_vgetc();
844 	    LANGMAP_ADJUST(ca.nchar, TRUE);
845 #ifdef FEAT_CMDL_INFO
846 	    need_flushbuf |= add_to_showcmd(ca.nchar);
847 #endif
848 	    if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
849 						       || ca.nchar == Ctrl_BSL)
850 	    {
851 		cp = &ca.extra_char;	// need to get a third character
852 		if (ca.nchar != 'r')
853 		    lit = TRUE;			// get it literally
854 		else
855 		    repl = TRUE;		// get it in replace mode
856 	    }
857 	    else
858 		cp = NULL;		// no third character needed
859 	}
860 	else
861 	{
862 	    if (ca.cmdchar == 'r')		// get it in replace mode
863 		repl = TRUE;
864 	    cp = &ca.nchar;
865 	}
866 	lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));
867 
868 	/*
869 	 * Get a second or third character.
870 	 */
871 	if (cp != NULL)
872 	{
873 	    if (repl)
874 	    {
875 		State = REPLACE;	// pretend Replace mode
876 #ifdef CURSOR_SHAPE
877 		ui_cursor_shape();	// show different cursor shape
878 #endif
879 	    }
880 	    if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
881 	    {
882 		// Allow mappings defined with ":lmap".
883 		--no_mapping;
884 		--allow_keys;
885 		if (repl)
886 		    State = LREPLACE;
887 		else
888 		    State = LANGMAP;
889 		langmap_active = TRUE;
890 	    }
891 #ifdef HAVE_INPUT_METHOD
892 	    save_smd = p_smd;
893 	    p_smd = FALSE;	// Don't let the IM code show the mode here
894 	    if (lang && curbuf->b_p_iminsert == B_IMODE_IM)
895 		im_set_active(TRUE);
896 #endif
897 
898 	    *cp = plain_vgetc();
899 
900 	    if (langmap_active)
901 	    {
902 		// Undo the decrement done above
903 		++no_mapping;
904 		++allow_keys;
905 		State = NORMAL_BUSY;
906 	    }
907 #ifdef HAVE_INPUT_METHOD
908 	    if (lang)
909 	    {
910 		if (curbuf->b_p_iminsert != B_IMODE_LMAP)
911 		    im_save_status(&curbuf->b_p_iminsert);
912 		im_set_active(FALSE);
913 	    }
914 	    p_smd = save_smd;
915 #endif
916 	    State = NORMAL_BUSY;
917 #ifdef FEAT_CMDL_INFO
918 	    need_flushbuf |= add_to_showcmd(*cp);
919 #endif
920 
921 	    if (!lit)
922 	    {
923 #ifdef FEAT_DIGRAPHS
924 		// Typing CTRL-K gets a digraph.
925 		if (*cp == Ctrl_K
926 			&& ((nv_cmds[idx].cmd_flags & NV_LANG)
927 			    || cp == &ca.extra_char)
928 			&& vim_strchr(p_cpo, CPO_DIGRAPH) == NULL)
929 		{
930 		    c = get_digraph(FALSE);
931 		    if (c > 0)
932 		    {
933 			*cp = c;
934 # ifdef FEAT_CMDL_INFO
935 			// Guessing how to update showcmd here...
936 			del_from_showcmd(3);
937 			need_flushbuf |= add_to_showcmd(*cp);
938 # endif
939 		    }
940 		}
941 #endif
942 
943 		// adjust chars > 127, except after "tTfFr" commands
944 		LANGMAP_ADJUST(*cp, !lang);
945 #ifdef FEAT_RIGHTLEFT
946 		// adjust Hebrew mapped char
947 		if (p_hkmap && lang && KeyTyped)
948 		    *cp = hkmap(*cp);
949 #endif
950 	    }
951 
952 	    /*
953 	     * When the next character is CTRL-\ a following CTRL-N means the
954 	     * command is aborted and we go to Normal mode.
955 	     */
956 	    if (cp == &ca.extra_char
957 		    && ca.nchar == Ctrl_BSL
958 		    && (ca.extra_char == Ctrl_N || ca.extra_char == Ctrl_G))
959 	    {
960 		ca.cmdchar = Ctrl_BSL;
961 		ca.nchar = ca.extra_char;
962 		idx = find_command(ca.cmdchar);
963 	    }
964 	    else if ((ca.nchar == 'n' || ca.nchar == 'N') && ca.cmdchar == 'g')
965 		ca.oap->op_type = get_op_type(*cp, NUL);
966 	    else if (*cp == Ctrl_BSL)
967 	    {
968 		long towait = (p_ttm >= 0 ? p_ttm : p_tm);
969 
970 		// There is a busy wait here when typing "f<C-\>" and then
971 		// something different from CTRL-N.  Can't be avoided.
972 		while ((c = vpeekc()) <= 0 && towait > 0L)
973 		{
974 		    do_sleep(towait > 50L ? 50L : towait);
975 		    towait -= 50L;
976 		}
977 		if (c > 0)
978 		{
979 		    c = plain_vgetc();
980 		    if (c != Ctrl_N && c != Ctrl_G)
981 			vungetc(c);
982 		    else
983 		    {
984 			ca.cmdchar = Ctrl_BSL;
985 			ca.nchar = c;
986 			idx = find_command(ca.cmdchar);
987 		    }
988 		}
989 	    }
990 
991 	    // When getting a text character and the next character is a
992 	    // multi-byte character, it could be a composing character.
993 	    // However, don't wait for it to arrive. Also, do enable mapping,
994 	    // because if it's put back with vungetc() it's too late to apply
995 	    // mapping.
996 	    --no_mapping;
997 	    while (enc_utf8 && lang && (c = vpeekc()) > 0
998 				 && (c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1))
999 	    {
1000 		c = plain_vgetc();
1001 		if (!utf_iscomposing(c))
1002 		{
1003 		    vungetc(c);		// it wasn't, put it back
1004 		    break;
1005 		}
1006 		else if (ca.ncharC1 == 0)
1007 		    ca.ncharC1 = c;
1008 		else
1009 		    ca.ncharC2 = c;
1010 	    }
1011 	    ++no_mapping;
1012 	}
1013 	--no_mapping;
1014 	--allow_keys;
1015     }
1016 
1017 #ifdef FEAT_CMDL_INFO
1018     /*
1019      * Flush the showcmd characters onto the screen so we can see them while
1020      * the command is being executed.  Only do this when the shown command was
1021      * actually displayed, otherwise this will slow down a lot when executing
1022      * mappings.
1023      */
1024     if (need_flushbuf)
1025 	out_flush();
1026 #endif
1027     if (ca.cmdchar != K_IGNORE)
1028 	did_cursorhold = FALSE;
1029 
1030     State = NORMAL;
1031 
1032     if (ca.nchar == ESC)
1033     {
1034 	clearop(oap);
1035 	if (restart_edit == 0 && goto_im())
1036 	    restart_edit = 'a';
1037 	goto normal_end;
1038     }
1039 
1040     if (ca.cmdchar != K_IGNORE)
1041     {
1042 	msg_didout = FALSE;    // don't scroll screen up for normal command
1043 	msg_col = 0;
1044     }
1045 
1046     old_pos = curwin->w_cursor;		// remember where cursor was
1047 
1048     // When 'keymodel' contains "startsel" some keys start Select/Visual
1049     // mode.
1050     if (!VIsual_active && km_startsel)
1051     {
1052 	if (nv_cmds[idx].cmd_flags & NV_SS)
1053 	{
1054 	    start_selection();
1055 	    unshift_special(&ca);
1056 	    idx = find_command(ca.cmdchar);
1057 	}
1058 	else if ((nv_cmds[idx].cmd_flags & NV_SSS)
1059 					   && (mod_mask & MOD_MASK_SHIFT))
1060 	{
1061 	    start_selection();
1062 	    mod_mask &= ~MOD_MASK_SHIFT;
1063 	}
1064     }
1065 
1066     /*
1067      * Execute the command!
1068      * Call the command function found in the commands table.
1069      */
1070     ca.arg = nv_cmds[idx].cmd_arg;
1071     (nv_cmds[idx].cmd_func)(&ca);
1072 
1073     /*
1074      * If we didn't start or finish an operator, reset oap->regname, unless we
1075      * need it later.
1076      */
1077     if (!finish_op
1078 	    && !oap->op_type
1079 	    && (idx < 0 || !(nv_cmds[idx].cmd_flags & NV_KEEPREG)))
1080     {
1081 	clearop(oap);
1082 #ifdef FEAT_EVAL
1083 	reset_reg_var();
1084 #endif
1085     }
1086 
1087     // Get the length of mapped chars again after typing a count, second
1088     // character or "z333<cr>".
1089     if (old_mapped_len > 0)
1090 	old_mapped_len = typebuf_maplen();
1091 
1092     /*
1093      * If an operation is pending, handle it.  But not for K_IGNORE.
1094      */
1095     if (ca.cmdchar != K_IGNORE)
1096 	do_pending_operator(&ca, old_col, FALSE);
1097 
1098     /*
1099      * Wait for a moment when a message is displayed that will be overwritten
1100      * by the mode message.
1101      * In Visual mode and with "^O" in Insert mode, a short message will be
1102      * overwritten by the mode message.  Wait a bit, until a key is hit.
1103      * In Visual mode, it's more important to keep the Visual area updated
1104      * than keeping a message (e.g. from a /pat search).
1105      * Only do this if the command was typed, not from a mapping.
1106      * Don't wait when emsg_silent is non-zero.
1107      * Also wait a bit after an error message, e.g. for "^O:".
1108      * Don't redraw the screen, it would remove the message.
1109      */
1110     if (       ((p_smd
1111 		    && msg_silent == 0
1112 		    && (restart_edit != 0
1113 			|| (VIsual_active
1114 			    && old_pos.lnum == curwin->w_cursor.lnum
1115 			    && old_pos.col == curwin->w_cursor.col)
1116 		       )
1117 		    && (clear_cmdline
1118 			|| redraw_cmdline)
1119 		    && (msg_didout || (msg_didany && msg_scroll))
1120 		    && !msg_nowait
1121 		    && KeyTyped)
1122 		|| (restart_edit != 0
1123 		    && !VIsual_active
1124 		    && (msg_scroll
1125 			|| emsg_on_display)))
1126 	    && oap->regname == 0
1127 	    && !(ca.retval & CA_COMMAND_BUSY)
1128 	    && stuff_empty()
1129 	    && typebuf_typed()
1130 	    && emsg_silent == 0
1131 	    && !did_wait_return
1132 	    && oap->op_type == OP_NOP)
1133     {
1134 	int	save_State = State;
1135 
1136 	// Draw the cursor with the right shape here
1137 	if (restart_edit != 0)
1138 	    State = INSERT;
1139 
1140 	// If need to redraw, and there is a "keep_msg", redraw before the
1141 	// delay
1142 	if (must_redraw && keep_msg != NULL && !emsg_on_display)
1143 	{
1144 	    char_u	*kmsg;
1145 
1146 	    kmsg = keep_msg;
1147 	    keep_msg = NULL;
1148 	    // Showmode() will clear keep_msg, but we want to use it anyway.
1149 	    // First update w_topline.
1150 	    setcursor();
1151 	    update_screen(0);
1152 	    // now reset it, otherwise it's put in the history again
1153 	    keep_msg = kmsg;
1154 
1155 	    kmsg = vim_strsave(keep_msg);
1156 	    if (kmsg != NULL)
1157 	    {
1158 		msg_attr((char *)kmsg, keep_msg_attr);
1159 		vim_free(kmsg);
1160 	    }
1161 	}
1162 	setcursor();
1163 #ifdef CURSOR_SHAPE
1164 	ui_cursor_shape();		// may show different cursor shape
1165 #endif
1166 	cursor_on();
1167 	out_flush();
1168 	if (msg_scroll || emsg_on_display)
1169 	    ui_delay(1003L, TRUE);	// wait at least one second
1170 	ui_delay(3003L, FALSE);		// wait up to three seconds
1171 	State = save_State;
1172 
1173 	msg_scroll = FALSE;
1174 	emsg_on_display = FALSE;
1175     }
1176 
1177     /*
1178      * Finish up after executing a Normal mode command.
1179      */
1180 normal_end:
1181 
1182     msg_nowait = FALSE;
1183 
1184     // Reset finish_op, in case it was set
1185 #ifdef CURSOR_SHAPE
1186     c = finish_op;
1187 #endif
1188     finish_op = FALSE;
1189 #ifdef CURSOR_SHAPE
1190     // Redraw the cursor with another shape, if we were in Operator-pending
1191     // mode or did a replace command.
1192     if (c || ca.cmdchar == 'r')
1193     {
1194 	ui_cursor_shape();		// may show different cursor shape
1195 # ifdef FEAT_MOUSESHAPE
1196 	update_mouseshape(-1);
1197 # endif
1198     }
1199 #endif
1200 
1201 #ifdef FEAT_CMDL_INFO
1202     if (oap->op_type == OP_NOP && oap->regname == 0
1203 	    && ca.cmdchar != K_CURSORHOLD)
1204 	clear_showcmd();
1205 #endif
1206 
1207     checkpcmark();		// check if we moved since setting pcmark
1208     vim_free(ca.searchbuf);
1209 
1210     if (has_mbyte)
1211 	mb_adjust_cursor();
1212 
1213     if (curwin->w_p_scb && toplevel)
1214     {
1215 	validate_cursor();	// may need to update w_leftcol
1216 	do_check_scrollbind(TRUE);
1217     }
1218 
1219     if (curwin->w_p_crb && toplevel)
1220     {
1221 	validate_cursor();	// may need to update w_leftcol
1222 	do_check_cursorbind();
1223     }
1224 
1225 #ifdef FEAT_TERMINAL
1226     // don't go to Insert mode if a terminal has a running job
1227     if (term_job_running(curbuf->b_term))
1228 	restart_edit = 0;
1229 #endif
1230 
1231     /*
1232      * May restart edit(), if we got here with CTRL-O in Insert mode (but not
1233      * if still inside a mapping that started in Visual mode).
1234      * May switch from Visual to Select mode after CTRL-O command.
1235      */
1236     if (       oap->op_type == OP_NOP
1237 	    && ((restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1238 		|| restart_VIsual_select == 1)
1239 	    && !(ca.retval & CA_COMMAND_BUSY)
1240 	    && stuff_empty()
1241 	    && oap->regname == 0)
1242     {
1243 	if (restart_VIsual_select == 1)
1244 	{
1245 	    VIsual_select = TRUE;
1246 	    showmode();
1247 	    restart_VIsual_select = 0;
1248 	}
1249 	if (restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1250 	    (void)edit(restart_edit, FALSE, 1L);
1251     }
1252 
1253     if (restart_VIsual_select == 2)
1254 	restart_VIsual_select = 1;
1255 
1256     // Save count before an operator for next time.
1257     opcount = ca.opcount;
1258 }
1259 
1260 #ifdef FEAT_EVAL
1261 /*
1262  * Set v:count and v:count1 according to "cap".
1263  * Set v:prevcount only when "set_prevcount" is TRUE.
1264  */
1265     static void
1266 set_vcount_ca(cmdarg_T *cap, int *set_prevcount)
1267 {
1268     long count = cap->count0;
1269 
1270     // multiply with cap->opcount the same way as above
1271     if (cap->opcount != 0)
1272 	count = cap->opcount * (count == 0 ? 1 : count);
1273     set_vcount(count, count == 0 ? 1 : count, *set_prevcount);
1274     *set_prevcount = FALSE;  // only set v:prevcount once
1275 }
1276 #endif
1277 
1278 /*
1279  * Check if highlighting for Visual mode is possible, give a warning message
1280  * if not.
1281  */
1282     void
1283 check_visual_highlight(void)
1284 {
1285     static int	    did_check = FALSE;
1286 
1287     if (full_screen)
1288     {
1289 	if (!did_check && HL_ATTR(HLF_V) == 0)
1290 	    msg(_("Warning: terminal cannot highlight"));
1291 	did_check = TRUE;
1292     }
1293 }
1294 
1295 /*
1296  * End Visual mode.
1297  * This function should ALWAYS be called to end Visual mode, except from
1298  * do_pending_operator().
1299  */
1300     void
1301 end_visual_mode(void)
1302 {
1303 #ifdef FEAT_CLIPBOARD
1304     /*
1305      * If we are using the clipboard, then remember what was selected in case
1306      * we need to paste it somewhere while we still own the selection.
1307      * Only do this when the clipboard is already owned.  Don't want to grab
1308      * the selection when hitting ESC.
1309      */
1310     if (clip_star.available && clip_star.owned)
1311 	clip_auto_select();
1312 #endif
1313 
1314     VIsual_active = FALSE;
1315     setmouse();
1316     mouse_dragging = 0;
1317 
1318     // Save the current VIsual area for '< and '> marks, and "gv"
1319     curbuf->b_visual.vi_mode = VIsual_mode;
1320     curbuf->b_visual.vi_start = VIsual;
1321     curbuf->b_visual.vi_end = curwin->w_cursor;
1322     curbuf->b_visual.vi_curswant = curwin->w_curswant;
1323 #ifdef FEAT_EVAL
1324     curbuf->b_visual_mode_eval = VIsual_mode;
1325 #endif
1326     if (!virtual_active())
1327 	curwin->w_cursor.coladd = 0;
1328     may_clear_cmdline();
1329 
1330     adjust_cursor_eol();
1331 }
1332 
1333 /*
1334  * Reset VIsual_active and VIsual_reselect.
1335  */
1336     void
1337 reset_VIsual_and_resel(void)
1338 {
1339     if (VIsual_active)
1340     {
1341 	end_visual_mode();
1342 	redraw_curbuf_later(INVERTED);	// delete the inversion later
1343     }
1344     VIsual_reselect = FALSE;
1345 }
1346 
1347 /*
1348  * Reset VIsual_active and VIsual_reselect if it's set.
1349  */
1350     void
1351 reset_VIsual(void)
1352 {
1353     if (VIsual_active)
1354     {
1355 	end_visual_mode();
1356 	redraw_curbuf_later(INVERTED);	// delete the inversion later
1357 	VIsual_reselect = FALSE;
1358     }
1359 }
1360 
1361     void
1362 restore_visual_mode(void)
1363 {
1364     if (VIsual_mode_orig != NUL)
1365     {
1366 	curbuf->b_visual.vi_mode = VIsual_mode_orig;
1367 	VIsual_mode_orig = NUL;
1368     }
1369 }
1370 
1371 /*
1372  * Check for a balloon-eval special item to include when searching for an
1373  * identifier.  When "dir" is BACKWARD "ptr[-1]" must be valid!
1374  * Returns TRUE if the character at "*ptr" should be included.
1375  * "dir" is FORWARD or BACKWARD, the direction of searching.
1376  * "*colp" is in/decremented if "ptr[-dir]" should also be included.
1377  * "bnp" points to a counter for square brackets.
1378  */
1379     static int
1380 find_is_eval_item(
1381     char_u	*ptr,
1382     int		*colp,
1383     int		*bnp,
1384     int		dir)
1385 {
1386     // Accept everything inside [].
1387     if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD))
1388 	++*bnp;
1389     if (*bnp > 0)
1390     {
1391 	if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD))
1392 	    --*bnp;
1393 	return TRUE;
1394     }
1395 
1396     // skip over "s.var"
1397     if (*ptr == '.')
1398 	return TRUE;
1399 
1400     // two-character item: s->var
1401     if (ptr[dir == BACKWARD ? 0 : 1] == '>'
1402 	    && ptr[dir == BACKWARD ? -1 : 0] == '-')
1403     {
1404 	*colp += dir;
1405 	return TRUE;
1406     }
1407     return FALSE;
1408 }
1409 
1410 /*
1411  * Find the identifier under or to the right of the cursor.
1412  * "find_type" can have one of three values:
1413  * FIND_IDENT:   find an identifier (keyword)
1414  * FIND_STRING:  find any non-white text
1415  * FIND_IDENT + FIND_STRING: find any non-white text, identifier preferred.
1416  * FIND_EVAL:	 find text useful for C program debugging
1417  *
1418  * There are three steps:
1419  * 1. Search forward for the start of an identifier/text.  Doesn't move if
1420  *    already on one.
1421  * 2. Search backward for the start of this identifier/text.
1422  *    This doesn't match the real Vi but I like it a little better and it
1423  *    shouldn't bother anyone.
1424  * 3. Search forward to the end of this identifier/text.
1425  *    When FIND_IDENT isn't defined, we backup until a blank.
1426  *
1427  * Returns the length of the text, or zero if no text is found.
1428  * If text is found, a pointer to the text is put in "*text".  This
1429  * points into the current buffer line and is not always NUL terminated.
1430  */
1431     int
1432 find_ident_under_cursor(char_u **text, int find_type)
1433 {
1434     return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
1435 				curwin->w_cursor.col, text, NULL, find_type);
1436 }
1437 
1438 /*
1439  * Like find_ident_under_cursor(), but for any window and any position.
1440  * However: Uses 'iskeyword' from the current window!.
1441  */
1442     int
1443 find_ident_at_pos(
1444     win_T	*wp,
1445     linenr_T	lnum,
1446     colnr_T	startcol,
1447     char_u	**text,
1448     int		*textcol,	// column where "text" starts, can be NULL
1449     int		find_type)
1450 {
1451     char_u	*ptr;
1452     int		col = 0;	// init to shut up GCC
1453     int		i;
1454     int		this_class = 0;
1455     int		prev_class;
1456     int		prevcol;
1457     int		bn = 0;		// bracket nesting
1458 
1459     /*
1460      * if i == 0: try to find an identifier
1461      * if i == 1: try to find any non-white text
1462      */
1463     ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
1464     for (i = (find_type & FIND_IDENT) ? 0 : 1;	i < 2; ++i)
1465     {
1466 	/*
1467 	 * 1. skip to start of identifier/text
1468 	 */
1469 	col = startcol;
1470 	if (has_mbyte)
1471 	{
1472 	    while (ptr[col] != NUL)
1473 	    {
1474 		// Stop at a ']' to evaluate "a[x]".
1475 		if ((find_type & FIND_EVAL) && ptr[col] == ']')
1476 		    break;
1477 		this_class = mb_get_class(ptr + col);
1478 		if (this_class != 0 && (i == 1 || this_class != 1))
1479 		    break;
1480 		col += (*mb_ptr2len)(ptr + col);
1481 	    }
1482 	}
1483 	else
1484 	    while (ptr[col] != NUL
1485 		    && (i == 0 ? !vim_iswordc(ptr[col]) : VIM_ISWHITE(ptr[col]))
1486 		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
1487 		    )
1488 		++col;
1489 
1490 	// When starting on a ']' count it, so that we include the '['.
1491 	bn = ptr[col] == ']';
1492 
1493 	/*
1494 	 * 2. Back up to start of identifier/text.
1495 	 */
1496 	if (has_mbyte)
1497 	{
1498 	    // Remember class of character under cursor.
1499 	    if ((find_type & FIND_EVAL) && ptr[col] == ']')
1500 		this_class = mb_get_class((char_u *)"a");
1501 	    else
1502 		this_class = mb_get_class(ptr + col);
1503 	    while (col > 0 && this_class != 0)
1504 	    {
1505 		prevcol = col - 1 - (*mb_head_off)(ptr, ptr + col - 1);
1506 		prev_class = mb_get_class(ptr + prevcol);
1507 		if (this_class != prev_class
1508 			&& (i == 0
1509 			    || prev_class == 0
1510 			    || (find_type & FIND_IDENT))
1511 			&& (!(find_type & FIND_EVAL)
1512 			    || prevcol == 0
1513 			    || !find_is_eval_item(ptr + prevcol, &prevcol,
1514 							       &bn, BACKWARD))
1515 			)
1516 		    break;
1517 		col = prevcol;
1518 	    }
1519 
1520 	    // If we don't want just any old text, or we've found an
1521 	    // identifier, stop searching.
1522 	    if (this_class > 2)
1523 		this_class = 2;
1524 	    if (!(find_type & FIND_STRING) || this_class == 2)
1525 		break;
1526 	}
1527 	else
1528 	{
1529 	    while (col > 0
1530 		    && ((i == 0
1531 			    ? vim_iswordc(ptr[col - 1])
1532 			    : (!VIM_ISWHITE(ptr[col - 1])
1533 				&& (!(find_type & FIND_IDENT)
1534 				    || !vim_iswordc(ptr[col - 1]))))
1535 			|| ((find_type & FIND_EVAL)
1536 			    && col > 1
1537 			    && find_is_eval_item(ptr + col - 1, &col,
1538 							       &bn, BACKWARD))
1539 			))
1540 		--col;
1541 
1542 	    // If we don't want just any old text, or we've found an
1543 	    // identifier, stop searching.
1544 	    if (!(find_type & FIND_STRING) || vim_iswordc(ptr[col]))
1545 		break;
1546 	}
1547     }
1548 
1549     if (ptr[col] == NUL || (i == 0
1550 		&& (has_mbyte ? this_class != 2 : !vim_iswordc(ptr[col]))))
1551     {
1552 	// didn't find an identifier or text
1553 	if ((find_type & FIND_NOERROR) == 0)
1554 	{
1555 	    if (find_type & FIND_STRING)
1556 		emsg(_("E348: No string under cursor"));
1557 	    else
1558 		emsg(_(e_noident));
1559 	}
1560 	return 0;
1561     }
1562     ptr += col;
1563     *text = ptr;
1564     if (textcol != NULL)
1565 	*textcol = col;
1566 
1567     /*
1568      * 3. Find the end if the identifier/text.
1569      */
1570     bn = 0;
1571     startcol -= col;
1572     col = 0;
1573     if (has_mbyte)
1574     {
1575 	// Search for point of changing multibyte character class.
1576 	this_class = mb_get_class(ptr);
1577 	while (ptr[col] != NUL
1578 		&& ((i == 0 ? mb_get_class(ptr + col) == this_class
1579 			    : mb_get_class(ptr + col) != 0)
1580 		    || ((find_type & FIND_EVAL)
1581 			&& col <= (int)startcol
1582 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
1583 		))
1584 	    col += (*mb_ptr2len)(ptr + col);
1585     }
1586     else
1587 	while ((i == 0 ? vim_iswordc(ptr[col])
1588 		       : (ptr[col] != NUL && !VIM_ISWHITE(ptr[col])))
1589 		    || ((find_type & FIND_EVAL)
1590 			&& col <= (int)startcol
1591 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
1592 		)
1593 	    ++col;
1594 
1595     return col;
1596 }
1597 
1598 /*
1599  * Prepare for redo of a normal command.
1600  */
1601     static void
1602 prep_redo_cmd(cmdarg_T *cap)
1603 {
1604     prep_redo(cap->oap->regname, cap->count0,
1605 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
1606 }
1607 
1608 /*
1609  * Prepare for redo of any command.
1610  * Note that only the last argument can be a multi-byte char.
1611  */
1612     void
1613 prep_redo(
1614     int	    regname,
1615     long    num,
1616     int	    cmd1,
1617     int	    cmd2,
1618     int	    cmd3,
1619     int	    cmd4,
1620     int	    cmd5)
1621 {
1622     ResetRedobuff();
1623     if (regname != 0)	// yank from specified buffer
1624     {
1625 	AppendCharToRedobuff('"');
1626 	AppendCharToRedobuff(regname);
1627     }
1628     if (num)
1629 	AppendNumberToRedobuff(num);
1630 
1631     if (cmd1 != NUL)
1632 	AppendCharToRedobuff(cmd1);
1633     if (cmd2 != NUL)
1634 	AppendCharToRedobuff(cmd2);
1635     if (cmd3 != NUL)
1636 	AppendCharToRedobuff(cmd3);
1637     if (cmd4 != NUL)
1638 	AppendCharToRedobuff(cmd4);
1639     if (cmd5 != NUL)
1640 	AppendCharToRedobuff(cmd5);
1641 }
1642 
1643 /*
1644  * check for operator active and clear it
1645  *
1646  * return TRUE if operator was active
1647  */
1648     static int
1649 checkclearop(oparg_T *oap)
1650 {
1651     if (oap->op_type == OP_NOP)
1652 	return FALSE;
1653     clearopbeep(oap);
1654     return TRUE;
1655 }
1656 
1657 /*
1658  * Check for operator or Visual active.  Clear active operator.
1659  *
1660  * Return TRUE if operator or Visual was active.
1661  */
1662     static int
1663 checkclearopq(oparg_T *oap)
1664 {
1665     if (oap->op_type == OP_NOP && !VIsual_active)
1666 	return FALSE;
1667     clearopbeep(oap);
1668     return TRUE;
1669 }
1670 
1671     void
1672 clearop(oparg_T *oap)
1673 {
1674     oap->op_type = OP_NOP;
1675     oap->regname = 0;
1676     oap->motion_force = NUL;
1677     oap->use_reg_one = FALSE;
1678 }
1679 
1680     void
1681 clearopbeep(oparg_T *oap)
1682 {
1683     clearop(oap);
1684     beep_flush();
1685 }
1686 
1687 /*
1688  * Remove the shift modifier from a special key.
1689  */
1690     static void
1691 unshift_special(cmdarg_T *cap)
1692 {
1693     switch (cap->cmdchar)
1694     {
1695 	case K_S_RIGHT:	cap->cmdchar = K_RIGHT; break;
1696 	case K_S_LEFT:	cap->cmdchar = K_LEFT; break;
1697 	case K_S_UP:	cap->cmdchar = K_UP; break;
1698 	case K_S_DOWN:	cap->cmdchar = K_DOWN; break;
1699 	case K_S_HOME:	cap->cmdchar = K_HOME; break;
1700 	case K_S_END:	cap->cmdchar = K_END; break;
1701     }
1702     cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
1703 }
1704 
1705 /*
1706  * If the mode is currently displayed clear the command line or update the
1707  * command displayed.
1708  */
1709     void
1710 may_clear_cmdline(void)
1711 {
1712     if (mode_displayed)
1713 	clear_cmdline = TRUE;   // unshow visual mode later
1714 #ifdef FEAT_CMDL_INFO
1715     else
1716 	clear_showcmd();
1717 #endif
1718 }
1719 
1720 #if defined(FEAT_CMDL_INFO) || defined(PROTO)
1721 /*
1722  * Routines for displaying a partly typed command
1723  */
1724 
1725 #define SHOWCMD_BUFLEN SHOWCMD_COLS + 1 + 30
1726 static char_u	showcmd_buf[SHOWCMD_BUFLEN];
1727 static char_u	old_showcmd_buf[SHOWCMD_BUFLEN];  // For push_showcmd()
1728 static int	showcmd_is_clear = TRUE;
1729 static int	showcmd_visual = FALSE;
1730 
1731 static void display_showcmd(void);
1732 
1733     void
1734 clear_showcmd(void)
1735 {
1736     if (!p_sc)
1737 	return;
1738 
1739     if (VIsual_active && !char_avail())
1740     {
1741 	int		cursor_bot = LT_POS(VIsual, curwin->w_cursor);
1742 	long		lines;
1743 	colnr_T		leftcol, rightcol;
1744 	linenr_T	top, bot;
1745 
1746 	// Show the size of the Visual area.
1747 	if (cursor_bot)
1748 	{
1749 	    top = VIsual.lnum;
1750 	    bot = curwin->w_cursor.lnum;
1751 	}
1752 	else
1753 	{
1754 	    top = curwin->w_cursor.lnum;
1755 	    bot = VIsual.lnum;
1756 	}
1757 # ifdef FEAT_FOLDING
1758 	// Include closed folds as a whole.
1759 	(void)hasFolding(top, &top, NULL);
1760 	(void)hasFolding(bot, NULL, &bot);
1761 # endif
1762 	lines = bot - top + 1;
1763 
1764 	if (VIsual_mode == Ctrl_V)
1765 	{
1766 # ifdef FEAT_LINEBREAK
1767 	    char_u *saved_sbr = p_sbr;
1768 	    char_u *saved_w_sbr = curwin->w_p_sbr;
1769 
1770 	    // Make 'sbr' empty for a moment to get the correct size.
1771 	    p_sbr = empty_option;
1772 	    curwin->w_p_sbr = empty_option;
1773 # endif
1774 	    getvcols(curwin, &curwin->w_cursor, &VIsual, &leftcol, &rightcol);
1775 # ifdef FEAT_LINEBREAK
1776 	    p_sbr = saved_sbr;
1777 	    curwin->w_p_sbr = saved_w_sbr;
1778 # endif
1779 	    sprintf((char *)showcmd_buf, "%ldx%ld", lines,
1780 					      (long)(rightcol - leftcol + 1));
1781 	}
1782 	else if (VIsual_mode == 'V' || VIsual.lnum != curwin->w_cursor.lnum)
1783 	    sprintf((char *)showcmd_buf, "%ld", lines);
1784 	else
1785 	{
1786 	    char_u  *s, *e;
1787 	    int	    l;
1788 	    int	    bytes = 0;
1789 	    int	    chars = 0;
1790 
1791 	    if (cursor_bot)
1792 	    {
1793 		s = ml_get_pos(&VIsual);
1794 		e = ml_get_cursor();
1795 	    }
1796 	    else
1797 	    {
1798 		s = ml_get_cursor();
1799 		e = ml_get_pos(&VIsual);
1800 	    }
1801 	    while ((*p_sel != 'e') ? s <= e : s < e)
1802 	    {
1803 		l = (*mb_ptr2len)(s);
1804 		if (l == 0)
1805 		{
1806 		    ++bytes;
1807 		    ++chars;
1808 		    break;  // end of line
1809 		}
1810 		bytes += l;
1811 		++chars;
1812 		s += l;
1813 	    }
1814 	    if (bytes == chars)
1815 		sprintf((char *)showcmd_buf, "%d", chars);
1816 	    else
1817 		sprintf((char *)showcmd_buf, "%d-%d", chars, bytes);
1818 	}
1819 	showcmd_buf[SHOWCMD_COLS] = NUL;	// truncate
1820 	showcmd_visual = TRUE;
1821     }
1822     else
1823     {
1824 	showcmd_buf[0] = NUL;
1825 	showcmd_visual = FALSE;
1826 
1827 	// Don't actually display something if there is nothing to clear.
1828 	if (showcmd_is_clear)
1829 	    return;
1830     }
1831 
1832     display_showcmd();
1833 }
1834 
1835 /*
1836  * Add 'c' to string of shown command chars.
1837  * Return TRUE if output has been written (and setcursor() has been called).
1838  */
1839     int
1840 add_to_showcmd(int c)
1841 {
1842     char_u	*p;
1843     int		old_len;
1844     int		extra_len;
1845     int		overflow;
1846     int		i;
1847     static int	ignore[] =
1848     {
1849 #ifdef FEAT_GUI
1850 	K_VER_SCROLLBAR, K_HOR_SCROLLBAR,
1851 	K_LEFTMOUSE_NM, K_LEFTRELEASE_NM,
1852 #endif
1853 	K_IGNORE, K_PS,
1854 	K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE, K_MOUSEMOVE,
1855 	K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
1856 	K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
1857 	K_MOUSEDOWN, K_MOUSEUP, K_MOUSELEFT, K_MOUSERIGHT,
1858 	K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
1859 	K_CURSORHOLD,
1860 	0
1861     };
1862 
1863     if (!p_sc || msg_silent != 0)
1864 	return FALSE;
1865 
1866     if (showcmd_visual)
1867     {
1868 	showcmd_buf[0] = NUL;
1869 	showcmd_visual = FALSE;
1870     }
1871 
1872     // Ignore keys that are scrollbar updates and mouse clicks
1873     if (IS_SPECIAL(c))
1874 	for (i = 0; ignore[i] != 0; ++i)
1875 	    if (ignore[i] == c)
1876 		return FALSE;
1877 
1878     p = transchar(c);
1879     if (*p == ' ')
1880 	STRCPY(p, "<20>");
1881     old_len = (int)STRLEN(showcmd_buf);
1882     extra_len = (int)STRLEN(p);
1883     overflow = old_len + extra_len - SHOWCMD_COLS;
1884     if (overflow > 0)
1885 	mch_memmove(showcmd_buf, showcmd_buf + overflow,
1886 						      old_len - overflow + 1);
1887     STRCAT(showcmd_buf, p);
1888 
1889     if (char_avail())
1890 	return FALSE;
1891 
1892     display_showcmd();
1893 
1894     return TRUE;
1895 }
1896 
1897     void
1898 add_to_showcmd_c(int c)
1899 {
1900     if (!add_to_showcmd(c))
1901 	setcursor();
1902 }
1903 
1904 /*
1905  * Delete 'len' characters from the end of the shown command.
1906  */
1907     static void
1908 del_from_showcmd(int len)
1909 {
1910     int	    old_len;
1911 
1912     if (!p_sc)
1913 	return;
1914 
1915     old_len = (int)STRLEN(showcmd_buf);
1916     if (len > old_len)
1917 	len = old_len;
1918     showcmd_buf[old_len - len] = NUL;
1919 
1920     if (!char_avail())
1921 	display_showcmd();
1922 }
1923 
1924 /*
1925  * push_showcmd() and pop_showcmd() are used when waiting for the user to type
1926  * something and there is a partial mapping.
1927  */
1928     void
1929 push_showcmd(void)
1930 {
1931     if (p_sc)
1932 	STRCPY(old_showcmd_buf, showcmd_buf);
1933 }
1934 
1935     void
1936 pop_showcmd(void)
1937 {
1938     if (!p_sc)
1939 	return;
1940 
1941     STRCPY(showcmd_buf, old_showcmd_buf);
1942 
1943     display_showcmd();
1944 }
1945 
1946     static void
1947 display_showcmd(void)
1948 {
1949     int	    len;
1950 
1951     cursor_off();
1952 
1953     len = (int)STRLEN(showcmd_buf);
1954     if (len == 0)
1955 	showcmd_is_clear = TRUE;
1956     else
1957     {
1958 	screen_puts(showcmd_buf, (int)Rows - 1, sc_col, 0);
1959 	showcmd_is_clear = FALSE;
1960     }
1961 
1962     /*
1963      * clear the rest of an old message by outputting up to SHOWCMD_COLS
1964      * spaces
1965      */
1966     screen_puts((char_u *)"          " + len, (int)Rows - 1, sc_col + len, 0);
1967 
1968     setcursor();	    // put cursor back where it belongs
1969 }
1970 #endif
1971 
1972 /*
1973  * When "check" is FALSE, prepare for commands that scroll the window.
1974  * When "check" is TRUE, take care of scroll-binding after the window has
1975  * scrolled.  Called from normal_cmd() and edit().
1976  */
1977     void
1978 do_check_scrollbind(int check)
1979 {
1980     static win_T	*old_curwin = NULL;
1981     static linenr_T	old_topline = 0;
1982 #ifdef FEAT_DIFF
1983     static int		old_topfill = 0;
1984 #endif
1985     static buf_T	*old_buf = NULL;
1986     static colnr_T	old_leftcol = 0;
1987 
1988     if (check && curwin->w_p_scb)
1989     {
1990 	// If a ":syncbind" command was just used, don't scroll, only reset
1991 	// the values.
1992 	if (did_syncbind)
1993 	    did_syncbind = FALSE;
1994 	else if (curwin == old_curwin)
1995 	{
1996 	    /*
1997 	     * Synchronize other windows, as necessary according to
1998 	     * 'scrollbind'.  Don't do this after an ":edit" command, except
1999 	     * when 'diff' is set.
2000 	     */
2001 	    if ((curwin->w_buffer == old_buf
2002 #ifdef FEAT_DIFF
2003 			|| curwin->w_p_diff
2004 #endif
2005 		)
2006 		&& (curwin->w_topline != old_topline
2007 #ifdef FEAT_DIFF
2008 			|| curwin->w_topfill != old_topfill
2009 #endif
2010 			|| curwin->w_leftcol != old_leftcol))
2011 	    {
2012 		check_scrollbind(curwin->w_topline - old_topline,
2013 			(long)(curwin->w_leftcol - old_leftcol));
2014 	    }
2015 	}
2016 	else if (vim_strchr(p_sbo, 'j')) // jump flag set in 'scrollopt'
2017 	{
2018 	    /*
2019 	     * When switching between windows, make sure that the relative
2020 	     * vertical offset is valid for the new window.  The relative
2021 	     * offset is invalid whenever another 'scrollbind' window has
2022 	     * scrolled to a point that would force the current window to
2023 	     * scroll past the beginning or end of its buffer.  When the
2024 	     * resync is performed, some of the other 'scrollbind' windows may
2025 	     * need to jump so that the current window's relative position is
2026 	     * visible on-screen.
2027 	     */
2028 	    check_scrollbind(curwin->w_topline - curwin->w_scbind_pos, 0L);
2029 	}
2030 	curwin->w_scbind_pos = curwin->w_topline;
2031     }
2032 
2033     old_curwin = curwin;
2034     old_topline = curwin->w_topline;
2035 #ifdef FEAT_DIFF
2036     old_topfill = curwin->w_topfill;
2037 #endif
2038     old_buf = curwin->w_buffer;
2039     old_leftcol = curwin->w_leftcol;
2040 }
2041 
2042 /*
2043  * Synchronize any windows that have "scrollbind" set, based on the
2044  * number of rows by which the current window has changed
2045  * (1998-11-02 16:21:01  R. Edward Ralston <[email protected]>)
2046  */
2047     void
2048 check_scrollbind(linenr_T topline_diff, long leftcol_diff)
2049 {
2050     int		want_ver;
2051     int		want_hor;
2052     win_T	*old_curwin = curwin;
2053     buf_T	*old_curbuf = curbuf;
2054     int		old_VIsual_select = VIsual_select;
2055     int		old_VIsual_active = VIsual_active;
2056     colnr_T	tgt_leftcol = curwin->w_leftcol;
2057     long	topline;
2058     long	y;
2059 
2060     /*
2061      * check 'scrollopt' string for vertical and horizontal scroll options
2062      */
2063     want_ver = (vim_strchr(p_sbo, 'v') && topline_diff != 0);
2064 #ifdef FEAT_DIFF
2065     want_ver |= old_curwin->w_p_diff;
2066 #endif
2067     want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || topline_diff != 0));
2068 
2069     /*
2070      * loop through the scrollbound windows and scroll accordingly
2071      */
2072     VIsual_select = VIsual_active = 0;
2073     FOR_ALL_WINDOWS(curwin)
2074     {
2075 	curbuf = curwin->w_buffer;
2076 	// skip original window  and windows with 'noscrollbind'
2077 	if (curwin != old_curwin && curwin->w_p_scb)
2078 	{
2079 	    /*
2080 	     * do the vertical scroll
2081 	     */
2082 	    if (want_ver)
2083 	    {
2084 #ifdef FEAT_DIFF
2085 		if (old_curwin->w_p_diff && curwin->w_p_diff)
2086 		{
2087 		    diff_set_topline(old_curwin, curwin);
2088 		}
2089 		else
2090 #endif
2091 		{
2092 		    curwin->w_scbind_pos += topline_diff;
2093 		    topline = curwin->w_scbind_pos;
2094 		    if (topline > curbuf->b_ml.ml_line_count)
2095 			topline = curbuf->b_ml.ml_line_count;
2096 		    if (topline < 1)
2097 			topline = 1;
2098 
2099 		    y = topline - curwin->w_topline;
2100 		    if (y > 0)
2101 			scrollup(y, FALSE);
2102 		    else
2103 			scrolldown(-y, FALSE);
2104 		}
2105 
2106 		redraw_later(VALID);
2107 		cursor_correct();
2108 		curwin->w_redr_status = TRUE;
2109 	    }
2110 
2111 	    /*
2112 	     * do the horizontal scroll
2113 	     */
2114 	    if (want_hor && curwin->w_leftcol != tgt_leftcol)
2115 	    {
2116 		curwin->w_leftcol = tgt_leftcol;
2117 		leftcol_changed();
2118 	    }
2119 	}
2120     }
2121 
2122     /*
2123      * reset current-window
2124      */
2125     VIsual_select = old_VIsual_select;
2126     VIsual_active = old_VIsual_active;
2127     curwin = old_curwin;
2128     curbuf = old_curbuf;
2129 }
2130 
2131 /*
2132  * Command character that's ignored.
2133  * Used for CTRL-Q and CTRL-S to avoid problems with terminals that use
2134  * xon/xoff.
2135  */
2136     static void
2137 nv_ignore(cmdarg_T *cap)
2138 {
2139     cap->retval |= CA_COMMAND_BUSY;	// don't call edit() now
2140 }
2141 
2142 /*
2143  * Command character that doesn't do anything, but unlike nv_ignore() does
2144  * start edit().  Used for "startinsert" executed while starting up.
2145  */
2146     static void
2147 nv_nop(cmdarg_T *cap UNUSED)
2148 {
2149 }
2150 
2151 /*
2152  * Command character doesn't exist.
2153  */
2154     static void
2155 nv_error(cmdarg_T *cap)
2156 {
2157     clearopbeep(cap->oap);
2158 }
2159 
2160 /*
2161  * <Help> and <F1> commands.
2162  */
2163     static void
2164 nv_help(cmdarg_T *cap)
2165 {
2166     if (!checkclearopq(cap->oap))
2167 	ex_help(NULL);
2168 }
2169 
2170 /*
2171  * CTRL-A and CTRL-X: Add or subtract from letter or number under cursor.
2172  */
2173     static void
2174 nv_addsub(cmdarg_T *cap)
2175 {
2176 #ifdef FEAT_JOB_CHANNEL
2177     if (bt_prompt(curbuf) && !prompt_curpos_editable())
2178 	clearopbeep(cap->oap);
2179     else
2180 #endif
2181     if (!VIsual_active && cap->oap->op_type == OP_NOP)
2182     {
2183 	prep_redo_cmd(cap);
2184 	cap->oap->op_type = cap->cmdchar == Ctrl_A ?  OP_NR_ADD : OP_NR_SUB;
2185 	op_addsub(cap->oap, cap->count1, cap->arg);
2186 	cap->oap->op_type = OP_NOP;
2187     }
2188     else if (VIsual_active)
2189 	nv_operator(cap);
2190     else
2191 	clearop(cap->oap);
2192 }
2193 
2194 /*
2195  * CTRL-F, CTRL-B, etc: Scroll page up or down.
2196  */
2197     static void
2198 nv_page(cmdarg_T *cap)
2199 {
2200     if (!checkclearop(cap->oap))
2201     {
2202 	if (mod_mask & MOD_MASK_CTRL)
2203 	{
2204 	    // <C-PageUp>: tab page back; <C-PageDown>: tab page forward
2205 	    if (cap->arg == BACKWARD)
2206 		goto_tabpage(-(int)cap->count1);
2207 	    else
2208 		goto_tabpage((int)cap->count0);
2209 	}
2210 	else
2211 	    (void)onepage(cap->arg, cap->count1);
2212     }
2213 }
2214 
2215 /*
2216  * Implementation of "gd" and "gD" command.
2217  */
2218     static void
2219 nv_gd(
2220     oparg_T	*oap,
2221     int		nchar,
2222     int		thisblock)	// 1 for "1gd" and "1gD"
2223 {
2224     int		len;
2225     char_u	*ptr;
2226 
2227     if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
2228 	    || find_decl(ptr, len, nchar == 'd', thisblock, SEARCH_START)
2229 								      == FAIL)
2230 	clearopbeep(oap);
2231 #ifdef FEAT_FOLDING
2232     else if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
2233 	foldOpenCursor();
2234 #endif
2235 }
2236 
2237 /*
2238  * Return TRUE if line[offset] is not inside a C-style comment or string, FALSE
2239  * otherwise.
2240  */
2241     static int
2242 is_ident(char_u *line, int offset)
2243 {
2244     int	i;
2245     int	incomment = FALSE;
2246     int	instring = 0;
2247     int	prev = 0;
2248 
2249     for (i = 0; i < offset && line[i] != NUL; i++)
2250     {
2251 	if (instring != 0)
2252 	{
2253 	    if (prev != '\\' && line[i] == instring)
2254 		instring = 0;
2255 	}
2256 	else if ((line[i] == '"' || line[i] == '\'') && !incomment)
2257 	{
2258 	    instring = line[i];
2259 	}
2260 	else
2261 	{
2262 	    if (incomment)
2263 	    {
2264 		if (prev == '*' && line[i] == '/')
2265 		    incomment = FALSE;
2266 	    }
2267 	    else if (prev == '/' && line[i] == '*')
2268 	    {
2269 		incomment = TRUE;
2270 	    }
2271 	    else if (prev == '/' && line[i] == '/')
2272 	    {
2273 		return FALSE;
2274 	    }
2275 	}
2276 
2277 	prev = line[i];
2278     }
2279 
2280     return incomment == FALSE && instring == 0;
2281 }
2282 
2283 /*
2284  * Search for variable declaration of "ptr[len]".
2285  * When "locally" is TRUE in the current function ("gd"), otherwise in the
2286  * current file ("gD").
2287  * When "thisblock" is TRUE check the {} block scope.
2288  * Return FAIL when not found.
2289  */
2290     int
2291 find_decl(
2292     char_u	*ptr,
2293     int		len,
2294     int		locally,
2295     int		thisblock,
2296     int		flags_arg)	// flags passed to searchit()
2297 {
2298     char_u	*pat;
2299     pos_T	old_pos;
2300     pos_T	par_pos;
2301     pos_T	found_pos;
2302     int		t;
2303     int		save_p_ws;
2304     int		save_p_scs;
2305     int		retval = OK;
2306     int		incll;
2307     int		searchflags = flags_arg;
2308     int		valid;
2309 
2310     if ((pat = alloc(len + 7)) == NULL)
2311 	return FAIL;
2312 
2313     // Put "\V" before the pattern to avoid that the special meaning of "."
2314     // and "~" causes trouble.
2315     sprintf((char *)pat, vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
2316 								    len, ptr);
2317     old_pos = curwin->w_cursor;
2318     save_p_ws = p_ws;
2319     save_p_scs = p_scs;
2320     p_ws = FALSE;	// don't wrap around end of file now
2321     p_scs = FALSE;	// don't switch ignorecase off now
2322 
2323     /*
2324      * With "gD" go to line 1.
2325      * With "gd" Search back for the start of the current function, then go
2326      * back until a blank line.  If this fails go to line 1.
2327      */
2328     if (!locally || !findpar(&incll, BACKWARD, 1L, '{', FALSE))
2329     {
2330 	setpcmark();			// Set in findpar() otherwise
2331 	curwin->w_cursor.lnum = 1;
2332 	par_pos = curwin->w_cursor;
2333     }
2334     else
2335     {
2336 	par_pos = curwin->w_cursor;
2337 	while (curwin->w_cursor.lnum > 1 && *skipwhite(ml_get_curline()) != NUL)
2338 	    --curwin->w_cursor.lnum;
2339     }
2340     curwin->w_cursor.col = 0;
2341 
2342     // Search forward for the identifier, ignore comment lines.
2343     CLEAR_POS(&found_pos);
2344     for (;;)
2345     {
2346 	t = searchit(curwin, curbuf, &curwin->w_cursor, NULL, FORWARD,
2347 					  pat, 1L, searchflags, RE_LAST, NULL);
2348 	if (curwin->w_cursor.lnum >= old_pos.lnum)
2349 	    t = FAIL;	// match after start is failure too
2350 
2351 	if (thisblock && t != FAIL)
2352 	{
2353 	    pos_T	*pos;
2354 
2355 	    // Check that the block the match is in doesn't end before the
2356 	    // position where we started the search from.
2357 	    if ((pos = findmatchlimit(NULL, '}', FM_FORWARD,
2358 		     (int)(old_pos.lnum - curwin->w_cursor.lnum + 1))) != NULL
2359 		    && pos->lnum < old_pos.lnum)
2360 	    {
2361 		// There can't be a useful match before the end of this block.
2362 		// Skip to the end.
2363 		curwin->w_cursor = *pos;
2364 		continue;
2365 	    }
2366 	}
2367 
2368 	if (t == FAIL)
2369 	{
2370 	    // If we previously found a valid position, use it.
2371 	    if (found_pos.lnum != 0)
2372 	    {
2373 		curwin->w_cursor = found_pos;
2374 		t = OK;
2375 	    }
2376 	    break;
2377 	}
2378 	if (get_leader_len(ml_get_curline(), NULL, FALSE, TRUE) > 0)
2379 	{
2380 	    // Ignore this line, continue at start of next line.
2381 	    ++curwin->w_cursor.lnum;
2382 	    curwin->w_cursor.col = 0;
2383 	    continue;
2384 	}
2385 	valid = is_ident(ml_get_curline(), curwin->w_cursor.col);
2386 
2387 	// If the current position is not a valid identifier and a previous
2388 	// match is present, favor that one instead.
2389 	if (!valid && found_pos.lnum != 0)
2390 	{
2391 	    curwin->w_cursor = found_pos;
2392 	    break;
2393 	}
2394 
2395 	// Global search: use first valid match found
2396 	if (valid && !locally)
2397 	    break;
2398 	if (valid && curwin->w_cursor.lnum >= par_pos.lnum)
2399 	{
2400 	    // If we previously found a valid position, use it.
2401 	    if (found_pos.lnum != 0)
2402 		curwin->w_cursor = found_pos;
2403 	    break;
2404 	}
2405 
2406 	// For finding a local variable and the match is before the "{" or
2407 	// inside a comment, continue searching.  For K&R style function
2408 	// declarations this skips the function header without types.
2409 	if (!valid)
2410 	    CLEAR_POS(&found_pos);
2411 	else
2412 	    found_pos = curwin->w_cursor;
2413 	// Remove SEARCH_START from flags to avoid getting stuck at one
2414 	// position.
2415 	searchflags &= ~SEARCH_START;
2416     }
2417 
2418     if (t == FAIL)
2419     {
2420 	retval = FAIL;
2421 	curwin->w_cursor = old_pos;
2422     }
2423     else
2424     {
2425 	curwin->w_set_curswant = TRUE;
2426 	// "n" searches forward now
2427 	reset_search_dir();
2428     }
2429 
2430     vim_free(pat);
2431     p_ws = save_p_ws;
2432     p_scs = save_p_scs;
2433 
2434     return retval;
2435 }
2436 
2437 /*
2438  * Move 'dist' lines in direction 'dir', counting lines by *screen*
2439  * lines rather than lines in the file.
2440  * 'dist' must be positive.
2441  *
2442  * Return OK if able to move cursor, FAIL otherwise.
2443  */
2444     static int
2445 nv_screengo(oparg_T *oap, int dir, long dist)
2446 {
2447     int		linelen = linetabsize(ml_get_curline());
2448     int		retval = OK;
2449     int		atend = FALSE;
2450     int		n;
2451     int		col_off1;	// margin offset for first screen line
2452     int		col_off2;	// margin offset for wrapped screen line
2453     int		width1;		// text width for first screen line
2454     int		width2;		// test width for wrapped screen line
2455 
2456     oap->motion_type = MCHAR;
2457     oap->inclusive = (curwin->w_curswant == MAXCOL);
2458 
2459     col_off1 = curwin_col_off();
2460     col_off2 = col_off1 - curwin_col_off2();
2461     width1 = curwin->w_width - col_off1;
2462     width2 = curwin->w_width - col_off2;
2463     if (width2 == 0)
2464 	width2 = 1; // avoid divide by zero
2465 
2466     if (curwin->w_width != 0)
2467     {
2468       /*
2469        * Instead of sticking at the last character of the buffer line we
2470        * try to stick in the last column of the screen.
2471        */
2472       if (curwin->w_curswant == MAXCOL)
2473       {
2474 	atend = TRUE;
2475 	validate_virtcol();
2476 	if (width1 <= 0)
2477 	    curwin->w_curswant = 0;
2478 	else
2479 	{
2480 	    curwin->w_curswant = width1 - 1;
2481 	    if (curwin->w_virtcol > curwin->w_curswant)
2482 		curwin->w_curswant += ((curwin->w_virtcol
2483 			     - curwin->w_curswant - 1) / width2 + 1) * width2;
2484 	}
2485       }
2486       else
2487       {
2488 	if (linelen > width1)
2489 	    n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
2490 	else
2491 	    n = width1;
2492 	if (curwin->w_curswant >= (colnr_T)n)
2493 	    curwin->w_curswant = n - 1;
2494       }
2495 
2496       while (dist--)
2497       {
2498 	if (dir == BACKWARD)
2499 	{
2500 	    if ((long)curwin->w_curswant >= width1)
2501 		// Move back within the line. This can give a negative value
2502 		// for w_curswant if width1 < width2 (with cpoptions+=n),
2503 		// which will get clipped to column 0.
2504 		curwin->w_curswant -= width2;
2505 	    else
2506 	    {
2507 		// to previous line
2508 		if (curwin->w_cursor.lnum == 1)
2509 		{
2510 		    retval = FAIL;
2511 		    break;
2512 		}
2513 		--curwin->w_cursor.lnum;
2514 #ifdef FEAT_FOLDING
2515 		// Move to the start of a closed fold.  Don't do that when
2516 		// 'foldopen' contains "all": it will open in a moment.
2517 		if (!(fdo_flags & FDO_ALL))
2518 		    (void)hasFolding(curwin->w_cursor.lnum,
2519 						&curwin->w_cursor.lnum, NULL);
2520 #endif
2521 		linelen = linetabsize(ml_get_curline());
2522 		if (linelen > width1)
2523 		    curwin->w_curswant += (((linelen - width1 - 1) / width2)
2524 								+ 1) * width2;
2525 	    }
2526 	}
2527 	else // dir == FORWARD
2528 	{
2529 	    if (linelen > width1)
2530 		n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
2531 	    else
2532 		n = width1;
2533 	    if (curwin->w_curswant + width2 < (colnr_T)n)
2534 		// move forward within line
2535 		curwin->w_curswant += width2;
2536 	    else
2537 	    {
2538 		// to next line
2539 #ifdef FEAT_FOLDING
2540 		// Move to the end of a closed fold.
2541 		(void)hasFolding(curwin->w_cursor.lnum, NULL,
2542 						      &curwin->w_cursor.lnum);
2543 #endif
2544 		if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
2545 		{
2546 		    retval = FAIL;
2547 		    break;
2548 		}
2549 		curwin->w_cursor.lnum++;
2550 		curwin->w_curswant %= width2;
2551 		// Check if the cursor has moved below the number display
2552 		// when width1 < width2 (with cpoptions+=n). Subtract width2
2553 		// to get a negative value for w_curswant, which will get
2554 		// clipped to column 0.
2555 		if (curwin->w_curswant >= width1)
2556 		    curwin->w_curswant -= width2;
2557 		linelen = linetabsize(ml_get_curline());
2558 	    }
2559 	}
2560       }
2561     }
2562 
2563     if (virtual_active() && atend)
2564 	coladvance(MAXCOL);
2565     else
2566 	coladvance(curwin->w_curswant);
2567 
2568     if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
2569     {
2570 	colnr_T virtcol;
2571 
2572 	/*
2573 	 * Check for landing on a character that got split at the end of the
2574 	 * last line.  We want to advance a screenline, not end up in the same
2575 	 * screenline or move two screenlines.
2576 	 */
2577 	validate_virtcol();
2578 	virtcol = curwin->w_virtcol;
2579 #if defined(FEAT_LINEBREAK)
2580 	if (virtcol > (colnr_T)width1 && *get_showbreak_value(curwin) != NUL)
2581 	    virtcol -= vim_strsize(get_showbreak_value(curwin));
2582 #endif
2583 
2584 	if (virtcol > curwin->w_curswant
2585 		&& (curwin->w_curswant < (colnr_T)width1
2586 		    ? (curwin->w_curswant > (colnr_T)width1 / 2)
2587 		    : ((curwin->w_curswant - width1) % width2
2588 						      > (colnr_T)width2 / 2)))
2589 	    --curwin->w_cursor.col;
2590     }
2591 
2592     if (atend)
2593 	curwin->w_curswant = MAXCOL;	    // stick in the last column
2594 
2595     return retval;
2596 }
2597 
2598 /*
2599  * Handle CTRL-E and CTRL-Y commands: scroll a line up or down.
2600  * cap->arg must be TRUE for CTRL-E.
2601  */
2602     void
2603 nv_scroll_line(cmdarg_T *cap)
2604 {
2605     if (!checkclearop(cap->oap))
2606 	scroll_redraw(cap->arg, cap->count1);
2607 }
2608 
2609 /*
2610  * Scroll "count" lines up or down, and redraw.
2611  */
2612     void
2613 scroll_redraw(int up, long count)
2614 {
2615     linenr_T	prev_topline = curwin->w_topline;
2616 #ifdef FEAT_DIFF
2617     int		prev_topfill = curwin->w_topfill;
2618 #endif
2619     linenr_T	prev_lnum = curwin->w_cursor.lnum;
2620 
2621     if (up)
2622 	scrollup(count, TRUE);
2623     else
2624 	scrolldown(count, TRUE);
2625     if (get_scrolloff_value())
2626     {
2627 	// Adjust the cursor position for 'scrolloff'.  Mark w_topline as
2628 	// valid, otherwise the screen jumps back at the end of the file.
2629 	cursor_correct();
2630 	check_cursor_moved(curwin);
2631 	curwin->w_valid |= VALID_TOPLINE;
2632 
2633 	// If moved back to where we were, at least move the cursor, otherwise
2634 	// we get stuck at one position.  Don't move the cursor up if the
2635 	// first line of the buffer is already on the screen
2636 	while (curwin->w_topline == prev_topline
2637 #ifdef FEAT_DIFF
2638 		&& curwin->w_topfill == prev_topfill
2639 #endif
2640 		)
2641 	{
2642 	    if (up)
2643 	    {
2644 		if (curwin->w_cursor.lnum > prev_lnum
2645 			|| cursor_down(1L, FALSE) == FAIL)
2646 		    break;
2647 	    }
2648 	    else
2649 	    {
2650 		if (curwin->w_cursor.lnum < prev_lnum
2651 			|| prev_topline == 1L
2652 			|| cursor_up(1L, FALSE) == FAIL)
2653 		    break;
2654 	    }
2655 	    // Mark w_topline as valid, otherwise the screen jumps back at the
2656 	    // end of the file.
2657 	    check_cursor_moved(curwin);
2658 	    curwin->w_valid |= VALID_TOPLINE;
2659 	}
2660     }
2661     if (curwin->w_cursor.lnum != prev_lnum)
2662 	coladvance(curwin->w_curswant);
2663     redraw_later(VALID);
2664 }
2665 
2666 /*
2667  * Commands that start with "z".
2668  */
2669     static void
2670 nv_zet(cmdarg_T *cap)
2671 {
2672     long	n;
2673     colnr_T	col;
2674     int		nchar = cap->nchar;
2675 #ifdef FEAT_FOLDING
2676     long	old_fdl = curwin->w_p_fdl;
2677     int		old_fen = curwin->w_p_fen;
2678 #endif
2679 #ifdef FEAT_SPELL
2680     int		undo = FALSE;
2681 #endif
2682     long        siso = get_sidescrolloff_value();
2683 
2684     if (VIM_ISDIGIT(nchar))
2685     {
2686 	/*
2687 	 * "z123{nchar}": edit the count before obtaining {nchar}
2688 	 */
2689 	if (checkclearop(cap->oap))
2690 	    return;
2691 	n = nchar - '0';
2692 	for (;;)
2693 	{
2694 #ifdef USE_ON_FLY_SCROLL
2695 	    dont_scroll = TRUE;		// disallow scrolling here
2696 #endif
2697 	    ++no_mapping;
2698 	    ++allow_keys;   // no mapping for nchar, but allow key codes
2699 	    nchar = plain_vgetc();
2700 	    LANGMAP_ADJUST(nchar, TRUE);
2701 	    --no_mapping;
2702 	    --allow_keys;
2703 #ifdef FEAT_CMDL_INFO
2704 	    (void)add_to_showcmd(nchar);
2705 #endif
2706 	    if (nchar == K_DEL || nchar == K_KDEL)
2707 		n /= 10;
2708 	    else if (VIM_ISDIGIT(nchar))
2709 		n = n * 10 + (nchar - '0');
2710 	    else if (nchar == CAR)
2711 	    {
2712 #ifdef FEAT_GUI
2713 		need_mouse_correct = TRUE;
2714 #endif
2715 		win_setheight((int)n);
2716 		break;
2717 	    }
2718 	    else if (nchar == 'l'
2719 		    || nchar == 'h'
2720 		    || nchar == K_LEFT
2721 		    || nchar == K_RIGHT)
2722 	    {
2723 		cap->count1 = n ? n * cap->count1 : cap->count1;
2724 		goto dozet;
2725 	    }
2726 	    else
2727 	    {
2728 		clearopbeep(cap->oap);
2729 		break;
2730 	    }
2731 	}
2732 	cap->oap->op_type = OP_NOP;
2733 	return;
2734     }
2735 
2736 dozet:
2737     if (
2738 #ifdef FEAT_FOLDING
2739 	    // "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
2740 	    // and "zC" only in Visual mode.  "zj" and "zk" are motion
2741 	    // commands.
2742 	    cap->nchar != 'f' && cap->nchar != 'F'
2743 	    && !(VIsual_active && vim_strchr((char_u *)"dcCoO", cap->nchar))
2744 	    && cap->nchar != 'j' && cap->nchar != 'k'
2745 	    &&
2746 #endif
2747 	    checkclearop(cap->oap))
2748 	return;
2749 
2750     /*
2751      * For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
2752      * If line number given, set cursor.
2753      */
2754     if ((vim_strchr((char_u *)"+\r\nt.z^-b", nchar) != NULL)
2755 	    && cap->count0
2756 	    && cap->count0 != curwin->w_cursor.lnum)
2757     {
2758 	setpcmark();
2759 	if (cap->count0 > curbuf->b_ml.ml_line_count)
2760 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
2761 	else
2762 	    curwin->w_cursor.lnum = cap->count0;
2763 	check_cursor_col();
2764     }
2765 
2766     switch (nchar)
2767     {
2768 		// "z+", "z<CR>" and "zt": put cursor at top of screen
2769     case '+':
2770 		if (cap->count0 == 0)
2771 		{
2772 		    // No count given: put cursor at the line below screen
2773 		    validate_botline();	// make sure w_botline is valid
2774 		    if (curwin->w_botline > curbuf->b_ml.ml_line_count)
2775 			curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
2776 		    else
2777 			curwin->w_cursor.lnum = curwin->w_botline;
2778 		}
2779 		// FALLTHROUGH
2780     case NL:
2781     case CAR:
2782     case K_KENTER:
2783 		beginline(BL_WHITE | BL_FIX);
2784 		// FALLTHROUGH
2785 
2786     case 't':	scroll_cursor_top(0, TRUE);
2787 		redraw_later(VALID);
2788 		set_fraction(curwin);
2789 		break;
2790 
2791 		// "z." and "zz": put cursor in middle of screen
2792     case '.':	beginline(BL_WHITE | BL_FIX);
2793 		// FALLTHROUGH
2794 
2795     case 'z':	scroll_cursor_halfway(TRUE);
2796 		redraw_later(VALID);
2797 		set_fraction(curwin);
2798 		break;
2799 
2800 		// "z^", "z-" and "zb": put cursor at bottom of screen
2801     case '^':	// Strange Vi behavior: <count>z^ finds line at top of window
2802 		// when <count> is at bottom of window, and puts that one at
2803 		// bottom of window.
2804 		if (cap->count0 != 0)
2805 		{
2806 		    scroll_cursor_bot(0, TRUE);
2807 		    curwin->w_cursor.lnum = curwin->w_topline;
2808 		}
2809 		else if (curwin->w_topline == 1)
2810 		    curwin->w_cursor.lnum = 1;
2811 		else
2812 		    curwin->w_cursor.lnum = curwin->w_topline - 1;
2813 		// FALLTHROUGH
2814     case '-':
2815 		beginline(BL_WHITE | BL_FIX);
2816 		// FALLTHROUGH
2817 
2818     case 'b':	scroll_cursor_bot(0, TRUE);
2819 		redraw_later(VALID);
2820 		set_fraction(curwin);
2821 		break;
2822 
2823 		// "zH" - scroll screen right half-page
2824     case 'H':
2825 		cap->count1 *= curwin->w_width / 2;
2826 		// FALLTHROUGH
2827 
2828 		// "zh" - scroll screen to the right
2829     case 'h':
2830     case K_LEFT:
2831 		if (!curwin->w_p_wrap)
2832 		{
2833 		    if ((colnr_T)cap->count1 > curwin->w_leftcol)
2834 			curwin->w_leftcol = 0;
2835 		    else
2836 			curwin->w_leftcol -= (colnr_T)cap->count1;
2837 		    leftcol_changed();
2838 		}
2839 		break;
2840 
2841 		// "zL" - scroll screen left half-page
2842     case 'L':	cap->count1 *= curwin->w_width / 2;
2843 		// FALLTHROUGH
2844 
2845 		// "zl" - scroll screen to the left
2846     case 'l':
2847     case K_RIGHT:
2848 		if (!curwin->w_p_wrap)
2849 		{
2850 		    // scroll the window left
2851 		    curwin->w_leftcol += (colnr_T)cap->count1;
2852 		    leftcol_changed();
2853 		}
2854 		break;
2855 
2856 		// "zs" - scroll screen, cursor at the start
2857     case 's':	if (!curwin->w_p_wrap)
2858 		{
2859 #ifdef FEAT_FOLDING
2860 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
2861 			col = 0;	// like the cursor is in col 0
2862 		    else
2863 #endif
2864 		    getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
2865 		    if ((long)col > siso)
2866 			col -= siso;
2867 		    else
2868 			col = 0;
2869 		    if (curwin->w_leftcol != col)
2870 		    {
2871 			curwin->w_leftcol = col;
2872 			redraw_later(NOT_VALID);
2873 		    }
2874 		}
2875 		break;
2876 
2877 		// "ze" - scroll screen, cursor at the end
2878     case 'e':	if (!curwin->w_p_wrap)
2879 		{
2880 #ifdef FEAT_FOLDING
2881 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
2882 			col = 0;	// like the cursor is in col 0
2883 		    else
2884 #endif
2885 		    getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
2886 		    n = curwin->w_width - curwin_col_off();
2887 		    if ((long)col + siso < n)
2888 			col = 0;
2889 		    else
2890 			col = col + siso - n + 1;
2891 		    if (curwin->w_leftcol != col)
2892 		    {
2893 			curwin->w_leftcol = col;
2894 			redraw_later(NOT_VALID);
2895 		    }
2896 		}
2897 		break;
2898 
2899 #ifdef FEAT_FOLDING
2900 		// "zF": create fold command
2901 		// "zf": create fold operator
2902     case 'F':
2903     case 'f':   if (foldManualAllowed(TRUE))
2904 		{
2905 		    cap->nchar = 'f';
2906 		    nv_operator(cap);
2907 		    curwin->w_p_fen = TRUE;
2908 
2909 		    // "zF" is like "zfzf"
2910 		    if (nchar == 'F' && cap->oap->op_type == OP_FOLD)
2911 		    {
2912 			nv_operator(cap);
2913 			finish_op = TRUE;
2914 		    }
2915 		}
2916 		else
2917 		    clearopbeep(cap->oap);
2918 		break;
2919 
2920 		// "zd": delete fold at cursor
2921 		// "zD": delete fold at cursor recursively
2922     case 'd':
2923     case 'D':	if (foldManualAllowed(FALSE))
2924 		{
2925 		    if (VIsual_active)
2926 			nv_operator(cap);
2927 		    else
2928 			deleteFold(curwin->w_cursor.lnum,
2929 				  curwin->w_cursor.lnum, nchar == 'D', FALSE);
2930 		}
2931 		break;
2932 
2933 		// "zE": erase all folds
2934     case 'E':	if (foldmethodIsManual(curwin))
2935 		{
2936 		    clearFolding(curwin);
2937 		    changed_window_setting();
2938 		}
2939 		else if (foldmethodIsMarker(curwin))
2940 		    deleteFold((linenr_T)1, curbuf->b_ml.ml_line_count,
2941 								 TRUE, FALSE);
2942 		else
2943 		    emsg(_("E352: Cannot erase folds with current 'foldmethod'"));
2944 		break;
2945 
2946 		// "zn": fold none: reset 'foldenable'
2947     case 'n':	curwin->w_p_fen = FALSE;
2948 		break;
2949 
2950 		// "zN": fold Normal: set 'foldenable'
2951     case 'N':	curwin->w_p_fen = TRUE;
2952 		break;
2953 
2954 		// "zi": invert folding: toggle 'foldenable'
2955     case 'i':	curwin->w_p_fen = !curwin->w_p_fen;
2956 		break;
2957 
2958 		// "za": open closed fold or close open fold at cursor
2959     case 'a':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
2960 		    openFold(curwin->w_cursor.lnum, cap->count1);
2961 		else
2962 		{
2963 		    closeFold(curwin->w_cursor.lnum, cap->count1);
2964 		    curwin->w_p_fen = TRUE;
2965 		}
2966 		break;
2967 
2968 		// "zA": open fold at cursor recursively
2969     case 'A':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
2970 		    openFoldRecurse(curwin->w_cursor.lnum);
2971 		else
2972 		{
2973 		    closeFoldRecurse(curwin->w_cursor.lnum);
2974 		    curwin->w_p_fen = TRUE;
2975 		}
2976 		break;
2977 
2978 		// "zo": open fold at cursor or Visual area
2979     case 'o':	if (VIsual_active)
2980 		    nv_operator(cap);
2981 		else
2982 		    openFold(curwin->w_cursor.lnum, cap->count1);
2983 		break;
2984 
2985 		// "zO": open fold recursively
2986     case 'O':	if (VIsual_active)
2987 		    nv_operator(cap);
2988 		else
2989 		    openFoldRecurse(curwin->w_cursor.lnum);
2990 		break;
2991 
2992 		// "zc": close fold at cursor or Visual area
2993     case 'c':	if (VIsual_active)
2994 		    nv_operator(cap);
2995 		else
2996 		    closeFold(curwin->w_cursor.lnum, cap->count1);
2997 		curwin->w_p_fen = TRUE;
2998 		break;
2999 
3000 		// "zC": close fold recursively
3001     case 'C':	if (VIsual_active)
3002 		    nv_operator(cap);
3003 		else
3004 		    closeFoldRecurse(curwin->w_cursor.lnum);
3005 		curwin->w_p_fen = TRUE;
3006 		break;
3007 
3008 		// "zv": open folds at the cursor
3009     case 'v':	foldOpenCursor();
3010 		break;
3011 
3012 		// "zx": re-apply 'foldlevel' and open folds at the cursor
3013     case 'x':	curwin->w_p_fen = TRUE;
3014 		curwin->w_foldinvalid = TRUE;	// recompute folds
3015 		newFoldLevel();			// update right now
3016 		foldOpenCursor();
3017 		break;
3018 
3019 		// "zX": undo manual opens/closes, re-apply 'foldlevel'
3020     case 'X':	curwin->w_p_fen = TRUE;
3021 		curwin->w_foldinvalid = TRUE;	// recompute folds
3022 		old_fdl = -1;			// force an update
3023 		break;
3024 
3025 		// "zm": fold more
3026     case 'm':	if (curwin->w_p_fdl > 0)
3027 		{
3028 		    curwin->w_p_fdl -= cap->count1;
3029 		    if (curwin->w_p_fdl < 0)
3030 			curwin->w_p_fdl = 0;
3031 		}
3032 		old_fdl = -1;		// force an update
3033 		curwin->w_p_fen = TRUE;
3034 		break;
3035 
3036 		// "zM": close all folds
3037     case 'M':	curwin->w_p_fdl = 0;
3038 		old_fdl = -1;		// force an update
3039 		curwin->w_p_fen = TRUE;
3040 		break;
3041 
3042 		// "zr": reduce folding
3043     case 'r':	curwin->w_p_fdl += cap->count1;
3044 		{
3045 		    int d = getDeepestNesting();
3046 
3047 		    if (curwin->w_p_fdl >= d)
3048 			curwin->w_p_fdl = d;
3049 		}
3050 		break;
3051 
3052 		// "zR": open all folds
3053     case 'R':	curwin->w_p_fdl = getDeepestNesting();
3054 		old_fdl = -1;		// force an update
3055 		break;
3056 
3057     case 'j':	// "zj" move to next fold downwards
3058     case 'k':	// "zk" move to next fold upwards
3059 		if (foldMoveTo(TRUE, nchar == 'j' ? FORWARD : BACKWARD,
3060 							  cap->count1) == FAIL)
3061 		    clearopbeep(cap->oap);
3062 		break;
3063 
3064 #endif // FEAT_FOLDING
3065 
3066 #ifdef FEAT_SPELL
3067     case 'u':	// "zug" and "zuw": undo "zg" and "zw"
3068 		++no_mapping;
3069 		++allow_keys;   // no mapping for nchar, but allow key codes
3070 		nchar = plain_vgetc();
3071 		LANGMAP_ADJUST(nchar, TRUE);
3072 		--no_mapping;
3073 		--allow_keys;
3074 #ifdef FEAT_CMDL_INFO
3075 		(void)add_to_showcmd(nchar);
3076 #endif
3077 		if (vim_strchr((char_u *)"gGwW", nchar) == NULL)
3078 		{
3079 		    clearopbeep(cap->oap);
3080 		    break;
3081 		}
3082 		undo = TRUE;
3083 		// FALLTHROUGH
3084 
3085     case 'g':	// "zg": add good word to word list
3086     case 'w':	// "zw": add wrong word to word list
3087     case 'G':	// "zG": add good word to temp word list
3088     case 'W':	// "zW": add wrong word to temp word list
3089 		{
3090 		    char_u  *ptr = NULL;
3091 		    int	    len;
3092 
3093 		    if (checkclearop(cap->oap))
3094 			break;
3095 		    if (VIsual_active && get_visual_text(cap, &ptr, &len)
3096 								      == FAIL)
3097 			return;
3098 		    if (ptr == NULL)
3099 		    {
3100 			pos_T	pos = curwin->w_cursor;
3101 
3102 			// Find bad word under the cursor.  When 'spell' is
3103 			// off this fails and find_ident_under_cursor() is
3104 			// used below.
3105 			emsg_off++;
3106 			len = spell_move_to(curwin, FORWARD, TRUE, TRUE, NULL);
3107 			emsg_off--;
3108 			if (len != 0 && curwin->w_cursor.col <= pos.col)
3109 			    ptr = ml_get_pos(&curwin->w_cursor);
3110 			curwin->w_cursor = pos;
3111 		    }
3112 
3113 		    if (ptr == NULL && (len = find_ident_under_cursor(&ptr,
3114 							    FIND_IDENT)) == 0)
3115 			return;
3116 		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W'
3117 					      ? SPELL_ADD_BAD : SPELL_ADD_GOOD,
3118 					    (nchar == 'G' || nchar == 'W')
3119 						       ? 0 : (int)cap->count1,
3120 					    undo);
3121 		}
3122 		break;
3123 
3124     case '=':	// "z=": suggestions for a badly spelled word
3125 		if (!checkclearop(cap->oap))
3126 		    spell_suggest((int)cap->count0);
3127 		break;
3128 #endif
3129 
3130     default:	clearopbeep(cap->oap);
3131     }
3132 
3133 #ifdef FEAT_FOLDING
3134     // Redraw when 'foldenable' changed
3135     if (old_fen != curwin->w_p_fen)
3136     {
3137 # ifdef FEAT_DIFF
3138 	win_T	    *wp;
3139 
3140 	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
3141 	{
3142 	    // Adjust 'foldenable' in diff-synced windows.
3143 	    FOR_ALL_WINDOWS(wp)
3144 	    {
3145 		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
3146 		{
3147 		    wp->w_p_fen = curwin->w_p_fen;
3148 		    changed_window_setting_win(wp);
3149 		}
3150 	    }
3151 	}
3152 # endif
3153 	changed_window_setting();
3154     }
3155 
3156     // Redraw when 'foldlevel' changed.
3157     if (old_fdl != curwin->w_p_fdl)
3158 	newFoldLevel();
3159 #endif
3160 }
3161 
3162 #ifdef FEAT_GUI
3163 /*
3164  * Vertical scrollbar movement.
3165  */
3166     static void
3167 nv_ver_scrollbar(cmdarg_T *cap)
3168 {
3169     if (cap->oap->op_type != OP_NOP)
3170 	clearopbeep(cap->oap);
3171 
3172     // Even if an operator was pending, we still want to scroll
3173     gui_do_scroll();
3174 }
3175 
3176 /*
3177  * Horizontal scrollbar movement.
3178  */
3179     static void
3180 nv_hor_scrollbar(cmdarg_T *cap)
3181 {
3182     if (cap->oap->op_type != OP_NOP)
3183 	clearopbeep(cap->oap);
3184 
3185     // Even if an operator was pending, we still want to scroll
3186     gui_do_horiz_scroll(scrollbar_value, FALSE);
3187 }
3188 #endif
3189 
3190 #if defined(FEAT_GUI_TABLINE) || defined(PROTO)
3191 /*
3192  * Click in GUI tab.
3193  */
3194     static void
3195 nv_tabline(cmdarg_T *cap)
3196 {
3197     if (cap->oap->op_type != OP_NOP)
3198 	clearopbeep(cap->oap);
3199 
3200     // Even if an operator was pending, we still want to jump tabs.
3201     goto_tabpage(current_tab);
3202 }
3203 
3204 /*
3205  * Selected item in tab line menu.
3206  */
3207     static void
3208 nv_tabmenu(cmdarg_T *cap)
3209 {
3210     if (cap->oap->op_type != OP_NOP)
3211 	clearopbeep(cap->oap);
3212 
3213     // Even if an operator was pending, we still want to jump tabs.
3214     handle_tabmenu();
3215 }
3216 
3217 /*
3218  * Handle selecting an item of the GUI tab line menu.
3219  * Used in Normal and Insert mode.
3220  */
3221     void
3222 handle_tabmenu(void)
3223 {
3224     switch (current_tabmenu)
3225     {
3226 	case TABLINE_MENU_CLOSE:
3227 	    if (current_tab == 0)
3228 		do_cmdline_cmd((char_u *)"tabclose");
3229 	    else
3230 	    {
3231 		vim_snprintf((char *)IObuff, IOSIZE, "tabclose %d",
3232 								 current_tab);
3233 		do_cmdline_cmd(IObuff);
3234 	    }
3235 	    break;
3236 
3237 	case TABLINE_MENU_NEW:
3238 	    if (current_tab == 0)
3239 		do_cmdline_cmd((char_u *)"$tabnew");
3240 	    else
3241 	    {
3242 		vim_snprintf((char *)IObuff, IOSIZE, "%dtabnew",
3243 							     current_tab - 1);
3244 		do_cmdline_cmd(IObuff);
3245 	    }
3246 	    break;
3247 
3248 	case TABLINE_MENU_OPEN:
3249 	    if (current_tab == 0)
3250 		do_cmdline_cmd((char_u *)"browse $tabnew");
3251 	    else
3252 	    {
3253 		vim_snprintf((char *)IObuff, IOSIZE, "browse %dtabnew",
3254 							     current_tab - 1);
3255 		do_cmdline_cmd(IObuff);
3256 	    }
3257 	    break;
3258     }
3259 }
3260 #endif
3261 
3262 /*
3263  * "Q" command.
3264  */
3265     static void
3266 nv_exmode(cmdarg_T *cap)
3267 {
3268     /*
3269      * Ignore 'Q' in Visual mode, just give a beep.
3270      */
3271     if (VIsual_active)
3272 	vim_beep(BO_EX);
3273     else if (!checkclearop(cap->oap))
3274 	do_exmode(FALSE);
3275 }
3276 
3277 /*
3278  * Handle a ":" command.
3279  */
3280     static void
3281 nv_colon(cmdarg_T *cap)
3282 {
3283     int	    old_p_im;
3284     int	    cmd_result;
3285 
3286     if (VIsual_active)
3287 	nv_operator(cap);
3288     else
3289     {
3290 	if (cap->oap->op_type != OP_NOP)
3291 	{
3292 	    // Using ":" as a movement is characterwise exclusive.
3293 	    cap->oap->motion_type = MCHAR;
3294 	    cap->oap->inclusive = FALSE;
3295 	}
3296 	else if (cap->count0)
3297 	{
3298 	    // translate "count:" into ":.,.+(count - 1)"
3299 	    stuffcharReadbuff('.');
3300 	    if (cap->count0 > 1)
3301 	    {
3302 		stuffReadbuff((char_u *)",.+");
3303 		stuffnumReadbuff((long)cap->count0 - 1L);
3304 	    }
3305 	}
3306 
3307 	// When typing, don't type below an old message
3308 	if (KeyTyped)
3309 	    compute_cmdrow();
3310 
3311 	old_p_im = p_im;
3312 
3313 	// get a command line and execute it
3314 	cmd_result = do_cmdline(NULL, getexline, NULL,
3315 			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
3316 
3317 	// If 'insertmode' changed, enter or exit Insert mode
3318 	if (p_im != old_p_im)
3319 	{
3320 	    if (p_im)
3321 		restart_edit = 'i';
3322 	    else
3323 		restart_edit = 0;
3324 	}
3325 
3326 	if (cmd_result == FAIL)
3327 	    // The Ex command failed, do not execute the operator.
3328 	    clearop(cap->oap);
3329 	else if (cap->oap->op_type != OP_NOP
3330 		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
3331 		    || cap->oap->start.col >
3332 			       (colnr_T)STRLEN(ml_get(cap->oap->start.lnum))
3333 		    || did_emsg
3334 		    ))
3335 	    // The start of the operator has become invalid by the Ex command.
3336 	    clearopbeep(cap->oap);
3337     }
3338 }
3339 
3340 /*
3341  * Handle CTRL-G command.
3342  */
3343     static void
3344 nv_ctrlg(cmdarg_T *cap)
3345 {
3346     if (VIsual_active)	// toggle Selection/Visual mode
3347     {
3348 	VIsual_select = !VIsual_select;
3349 	showmode();
3350     }
3351     else if (!checkclearop(cap->oap))
3352 	// print full name if count given or :cd used
3353 	fileinfo((int)cap->count0, FALSE, TRUE);
3354 }
3355 
3356 /*
3357  * Handle CTRL-H <Backspace> command.
3358  */
3359     static void
3360 nv_ctrlh(cmdarg_T *cap)
3361 {
3362     if (VIsual_active && VIsual_select)
3363     {
3364 	cap->cmdchar = 'x';	// BS key behaves like 'x' in Select mode
3365 	v_visop(cap);
3366     }
3367     else
3368 	nv_left(cap);
3369 }
3370 
3371 /*
3372  * CTRL-L: clear screen and redraw.
3373  */
3374     static void
3375 nv_clear(cmdarg_T *cap)
3376 {
3377     if (!checkclearop(cap->oap))
3378     {
3379 #ifdef FEAT_SYN_HL
3380 	// Clear all syntax states to force resyncing.
3381 	syn_stack_free_all(curwin->w_s);
3382 # ifdef FEAT_RELTIME
3383 	{
3384 	    win_T *wp;
3385 
3386 	    FOR_ALL_WINDOWS(wp)
3387 		wp->w_s->b_syn_slow = FALSE;
3388 	}
3389 # endif
3390 #endif
3391 	redraw_later(CLEAR);
3392 #if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL))
3393 # ifdef VIMDLL
3394 	if (!gui.in_use)
3395 # endif
3396 	    resize_console_buf();
3397 #endif
3398     }
3399 }
3400 
3401 /*
3402  * CTRL-O: In Select mode: switch to Visual mode for one command.
3403  * Otherwise: Go to older pcmark.
3404  */
3405     static void
3406 nv_ctrlo(cmdarg_T *cap)
3407 {
3408     if (VIsual_active && VIsual_select)
3409     {
3410 	VIsual_select = FALSE;
3411 	showmode();
3412 	restart_VIsual_select = 2;	// restart Select mode later
3413     }
3414     else
3415     {
3416 	cap->count1 = -cap->count1;
3417 	nv_pcmark(cap);
3418     }
3419 }
3420 
3421 /*
3422  * CTRL-^ command, short for ":e #".  Works even when the alternate buffer is
3423  * not named.
3424  */
3425     static void
3426 nv_hat(cmdarg_T *cap)
3427 {
3428     if (!checkclearopq(cap->oap))
3429 	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
3430 						GETF_SETMARK|GETF_ALT, FALSE);
3431 }
3432 
3433 /*
3434  * "Z" commands.
3435  */
3436     static void
3437 nv_Zet(cmdarg_T *cap)
3438 {
3439     if (!checkclearopq(cap->oap))
3440     {
3441 	switch (cap->nchar)
3442 	{
3443 			// "ZZ": equivalent to ":x".
3444 	    case 'Z':	do_cmdline_cmd((char_u *)"x");
3445 			break;
3446 
3447 			// "ZQ": equivalent to ":q!" (Elvis compatible).
3448 	    case 'Q':	do_cmdline_cmd((char_u *)"q!");
3449 			break;
3450 
3451 	    default:	clearopbeep(cap->oap);
3452 	}
3453     }
3454 }
3455 
3456 /*
3457  * Call nv_ident() as if "c1" was used, with "c2" as next character.
3458  */
3459     void
3460 do_nv_ident(int c1, int c2)
3461 {
3462     oparg_T	oa;
3463     cmdarg_T	ca;
3464 
3465     clear_oparg(&oa);
3466     CLEAR_FIELD(ca);
3467     ca.oap = &oa;
3468     ca.cmdchar = c1;
3469     ca.nchar = c2;
3470     nv_ident(&ca);
3471 }
3472 
3473 /*
3474  * Handle the commands that use the word under the cursor.
3475  * [g] CTRL-]	:ta to current identifier
3476  * [g] 'K'	run program for current identifier
3477  * [g] '*'	/ to current identifier or string
3478  * [g] '#'	? to current identifier or string
3479  *  g  ']'	:tselect for current identifier
3480  */
3481     static void
3482 nv_ident(cmdarg_T *cap)
3483 {
3484     char_u	*ptr = NULL;
3485     char_u	*buf;
3486     unsigned	buflen;
3487     char_u	*newbuf;
3488     char_u	*p;
3489     char_u	*kp;		// value of 'keywordprg'
3490     int		kp_help;	// 'keywordprg' is ":he"
3491     int		kp_ex;		// 'keywordprg' starts with ":"
3492     int		n = 0;		// init for GCC
3493     int		cmdchar;
3494     int		g_cmd;		// "g" command
3495     int		tag_cmd = FALSE;
3496     char_u	*aux_ptr;
3497     int		isman;
3498     int		isman_s;
3499 
3500     if (cap->cmdchar == 'g')	// "g*", "g#", "g]" and "gCTRL-]"
3501     {
3502 	cmdchar = cap->nchar;
3503 	g_cmd = TRUE;
3504     }
3505     else
3506     {
3507 	cmdchar = cap->cmdchar;
3508 	g_cmd = FALSE;
3509     }
3510 
3511     if (cmdchar == POUND)	// the pound sign, '#' for English keyboards
3512 	cmdchar = '#';
3513 
3514     /*
3515      * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
3516      */
3517     if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
3518     {
3519 	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
3520 	    return;
3521 	if (checkclearopq(cap->oap))
3522 	    return;
3523     }
3524 
3525     if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
3526 		    (cmdchar == '*' || cmdchar == '#')
3527 				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
3528     {
3529 	clearop(cap->oap);
3530 	return;
3531     }
3532 
3533     // Allocate buffer to put the command in.  Inserting backslashes can
3534     // double the length of the word.  p_kp / curbuf->b_p_kp could be added
3535     // and some numbers.
3536     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
3537     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
3538 						 || STRCMP(kp, ":help") == 0);
3539     if (kp_help && *skipwhite(ptr) == NUL)
3540     {
3541 	emsg(_(e_noident));	 // found white space only
3542 	return;
3543     }
3544     kp_ex = (*kp == ':');
3545     buflen = (unsigned)(n * 2 + 30 + STRLEN(kp));
3546     buf = alloc(buflen);
3547     if (buf == NULL)
3548 	return;
3549     buf[0] = NUL;
3550 
3551     switch (cmdchar)
3552     {
3553 	case '*':
3554 	case '#':
3555 	    /*
3556 	     * Put cursor at start of word, makes search skip the word
3557 	     * under the cursor.
3558 	     * Call setpcmark() first, so "*``" puts the cursor back where
3559 	     * it was.
3560 	     */
3561 	    setpcmark();
3562 	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());
3563 
3564 	    if (!g_cmd && vim_iswordp(ptr))
3565 		STRCPY(buf, "\\<");
3566 	    no_smartcase = TRUE;	// don't use 'smartcase' now
3567 	    break;
3568 
3569 	case 'K':
3570 	    if (kp_help)
3571 		STRCPY(buf, "he! ");
3572 	    else if (kp_ex)
3573 	    {
3574 		if (cap->count0 != 0)
3575 		    vim_snprintf((char *)buf, buflen, "%s %ld",
3576 							     kp, cap->count0);
3577 		else
3578 		    STRCPY(buf, kp);
3579 		STRCAT(buf, " ");
3580 	    }
3581 	    else
3582 	    {
3583 		// An external command will probably use an argument starting
3584 		// with "-" as an option.  To avoid trouble we skip the "-".
3585 		while (*ptr == '-' && n > 0)
3586 		{
3587 		    ++ptr;
3588 		    --n;
3589 		}
3590 		if (n == 0)
3591 		{
3592 		    emsg(_(e_noident));	 // found dashes only
3593 		    vim_free(buf);
3594 		    return;
3595 		}
3596 
3597 		// When a count is given, turn it into a range.  Is this
3598 		// really what we want?
3599 		isman = (STRCMP(kp, "man") == 0);
3600 		isman_s = (STRCMP(kp, "man -s") == 0);
3601 		if (cap->count0 != 0 && !(isman || isman_s))
3602 		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);
3603 
3604 		STRCAT(buf, "! ");
3605 		if (cap->count0 == 0 && isman_s)
3606 		    STRCAT(buf, "man");
3607 		else
3608 		    STRCAT(buf, kp);
3609 		STRCAT(buf, " ");
3610 		if (cap->count0 != 0 && (isman || isman_s))
3611 		{
3612 		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
3613 		    STRCAT(buf, " ");
3614 		}
3615 	    }
3616 	    break;
3617 
3618 	case ']':
3619 	    tag_cmd = TRUE;
3620 #ifdef FEAT_CSCOPE
3621 	    if (p_cst)
3622 		STRCPY(buf, "cstag ");
3623 	    else
3624 #endif
3625 		STRCPY(buf, "ts ");
3626 	    break;
3627 
3628 	default:
3629 	    tag_cmd = TRUE;
3630 	    if (curbuf->b_help)
3631 		STRCPY(buf, "he! ");
3632 	    else
3633 	    {
3634 		if (g_cmd)
3635 		    STRCPY(buf, "tj ");
3636 		else
3637 		    sprintf((char *)buf, "%ldta ", cap->count0);
3638 	    }
3639     }
3640 
3641     /*
3642      * Now grab the chars in the identifier
3643      */
3644     if (cmdchar == 'K' && !kp_help)
3645     {
3646 	ptr = vim_strnsave(ptr, n);
3647 	if (kp_ex)
3648 	    // Escape the argument properly for an Ex command
3649 	    p = vim_strsave_fnameescape(ptr, FALSE);
3650 	else
3651 	    // Escape the argument properly for a shell command
3652 	    p = vim_strsave_shellescape(ptr, TRUE, TRUE);
3653 	vim_free(ptr);
3654 	if (p == NULL)
3655 	{
3656 	    vim_free(buf);
3657 	    return;
3658 	}
3659 	newbuf = vim_realloc(buf, STRLEN(buf) + STRLEN(p) + 1);
3660 	if (newbuf == NULL)
3661 	{
3662 	    vim_free(buf);
3663 	    vim_free(p);
3664 	    return;
3665 	}
3666 	buf = newbuf;
3667 	STRCAT(buf, p);
3668 	vim_free(p);
3669     }
3670     else
3671     {
3672 	if (cmdchar == '*')
3673 	    aux_ptr = (char_u *)(p_magic ? "/.*~[^$\\" : "/^$\\");
3674 	else if (cmdchar == '#')
3675 	    aux_ptr = (char_u *)(p_magic ? "/?.*~[^$\\" : "/?^$\\");
3676 	else if (tag_cmd)
3677 	{
3678 	    if (curbuf->b_help)
3679 		// ":help" handles unescaped argument
3680 		aux_ptr = (char_u *)"";
3681 	    else
3682 		aux_ptr = (char_u *)"\\|\"\n[";
3683 	}
3684 	else
3685 	    aux_ptr = (char_u *)"\\|\"\n*?[";
3686 
3687 	p = buf + STRLEN(buf);
3688 	while (n-- > 0)
3689 	{
3690 	    // put a backslash before \ and some others
3691 	    if (vim_strchr(aux_ptr, *ptr) != NULL)
3692 		*p++ = '\\';
3693 	    // When current byte is a part of multibyte character, copy all
3694 	    // bytes of that character.
3695 	    if (has_mbyte)
3696 	    {
3697 		int i;
3698 		int len = (*mb_ptr2len)(ptr) - 1;
3699 
3700 		for (i = 0; i < len && n >= 1; ++i, --n)
3701 		    *p++ = *ptr++;
3702 	    }
3703 	    *p++ = *ptr++;
3704 	}
3705 	*p = NUL;
3706     }
3707 
3708     /*
3709      * Execute the command.
3710      */
3711     if (cmdchar == '*' || cmdchar == '#')
3712     {
3713 	if (!g_cmd && (has_mbyte
3714 		    ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr))
3715 		    : vim_iswordc(ptr[-1])))
3716 	    STRCAT(buf, "\\>");
3717 
3718 	// put pattern in search history
3719 	init_history();
3720 	add_to_history(HIST_SEARCH, buf, TRUE, NUL);
3721 
3722 	(void)normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0, NULL);
3723     }
3724     else
3725     {
3726 	g_tag_at_cursor = TRUE;
3727 	do_cmdline_cmd(buf);
3728 	g_tag_at_cursor = FALSE;
3729     }
3730 
3731     vim_free(buf);
3732 }
3733 
3734 /*
3735  * Get visually selected text, within one line only.
3736  * Returns FAIL if more than one line selected.
3737  */
3738     int
3739 get_visual_text(
3740     cmdarg_T	*cap,
3741     char_u	**pp,	    // return: start of selected text
3742     int		*lenp)	    // return: length of selected text
3743 {
3744     if (VIsual_mode != 'V')
3745 	unadjust_for_sel();
3746     if (VIsual.lnum != curwin->w_cursor.lnum)
3747     {
3748 	if (cap != NULL)
3749 	    clearopbeep(cap->oap);
3750 	return FAIL;
3751     }
3752     if (VIsual_mode == 'V')
3753     {
3754 	*pp = ml_get_curline();
3755 	*lenp = (int)STRLEN(*pp);
3756     }
3757     else
3758     {
3759 	if (LT_POS(curwin->w_cursor, VIsual))
3760 	{
3761 	    *pp = ml_get_pos(&curwin->w_cursor);
3762 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
3763 	}
3764 	else
3765 	{
3766 	    *pp = ml_get_pos(&VIsual);
3767 	    *lenp = curwin->w_cursor.col - VIsual.col + 1;
3768 	}
3769 	if (has_mbyte)
3770 	    // Correct the length to include the whole last character.
3771 	    *lenp += (*mb_ptr2len)(*pp + (*lenp - 1)) - 1;
3772     }
3773     reset_VIsual_and_resel();
3774     return OK;
3775 }
3776 
3777 /*
3778  * CTRL-T: backwards in tag stack
3779  */
3780     static void
3781 nv_tagpop(cmdarg_T *cap)
3782 {
3783     if (!checkclearopq(cap->oap))
3784 	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
3785 }
3786 
3787 /*
3788  * Handle scrolling command 'H', 'L' and 'M'.
3789  */
3790     static void
3791 nv_scroll(cmdarg_T *cap)
3792 {
3793     int		used = 0;
3794     long	n;
3795 #ifdef FEAT_FOLDING
3796     linenr_T	lnum;
3797 #endif
3798     int		half;
3799 
3800     cap->oap->motion_type = MLINE;
3801     setpcmark();
3802 
3803     if (cap->cmdchar == 'L')
3804     {
3805 	validate_botline();	    // make sure curwin->w_botline is valid
3806 	curwin->w_cursor.lnum = curwin->w_botline - 1;
3807 	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
3808 	    curwin->w_cursor.lnum = 1;
3809 	else
3810 	{
3811 #ifdef FEAT_FOLDING
3812 	    if (hasAnyFolding(curwin))
3813 	    {
3814 		// Count a fold for one screen line.
3815 		for (n = cap->count1 - 1; n > 0
3816 			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
3817 		{
3818 		    (void)hasFolding(curwin->w_cursor.lnum,
3819 						&curwin->w_cursor.lnum, NULL);
3820 		    --curwin->w_cursor.lnum;
3821 		}
3822 	    }
3823 	    else
3824 #endif
3825 		curwin->w_cursor.lnum -= cap->count1 - 1;
3826 	}
3827     }
3828     else
3829     {
3830 	if (cap->cmdchar == 'M')
3831 	{
3832 #ifdef FEAT_DIFF
3833 	    // Don't count filler lines above the window.
3834 	    used -= diff_check_fill(curwin, curwin->w_topline)
3835 							  - curwin->w_topfill;
3836 #endif
3837 	    validate_botline();	    // make sure w_empty_rows is valid
3838 	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
3839 	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
3840 	    {
3841 #ifdef FEAT_DIFF
3842 		// Count half he number of filler lines to be "below this
3843 		// line" and half to be "above the next line".
3844 		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
3845 							     + n) / 2 >= half)
3846 		{
3847 		    --n;
3848 		    break;
3849 		}
3850 #endif
3851 		used += plines(curwin->w_topline + n);
3852 		if (used >= half)
3853 		    break;
3854 #ifdef FEAT_FOLDING
3855 		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
3856 		    n = lnum - curwin->w_topline;
3857 #endif
3858 	    }
3859 	    if (n > 0 && used > curwin->w_height)
3860 		--n;
3861 	}
3862 	else // (cap->cmdchar == 'H')
3863 	{
3864 	    n = cap->count1 - 1;
3865 #ifdef FEAT_FOLDING
3866 	    if (hasAnyFolding(curwin))
3867 	    {
3868 		// Count a fold for one screen line.
3869 		lnum = curwin->w_topline;
3870 		while (n-- > 0 && lnum < curwin->w_botline - 1)
3871 		{
3872 		    (void)hasFolding(lnum, NULL, &lnum);
3873 		    ++lnum;
3874 		}
3875 		n = lnum - curwin->w_topline;
3876 	    }
3877 #endif
3878 	}
3879 	curwin->w_cursor.lnum = curwin->w_topline + n;
3880 	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
3881 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
3882     }
3883 
3884     // Correct for 'so', except when an operator is pending.
3885     if (cap->oap->op_type == OP_NOP)
3886 	cursor_correct();
3887     beginline(BL_SOL | BL_FIX);
3888 }
3889 
3890 /*
3891  * Cursor right commands.
3892  */
3893     static void
3894 nv_right(cmdarg_T *cap)
3895 {
3896     long	n;
3897     int		past_line;
3898 
3899     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
3900     {
3901 	// <C-Right> and <S-Right> move a word or WORD right
3902 	if (mod_mask & MOD_MASK_CTRL)
3903 	    cap->arg = TRUE;
3904 	nv_wordcmd(cap);
3905 	return;
3906     }
3907 
3908     cap->oap->motion_type = MCHAR;
3909     cap->oap->inclusive = FALSE;
3910     past_line = (VIsual_active && *p_sel != 'o');
3911 
3912     /*
3913      * In virtual edit mode, there's no such thing as "past_line", as lines
3914      * are (theoretically) infinitely long.
3915      */
3916     if (virtual_active())
3917 	past_line = 0;
3918 
3919     for (n = cap->count1; n > 0; --n)
3920     {
3921 	if ((!past_line && oneright() == FAIL)
3922 		|| (past_line && *ml_get_cursor() == NUL)
3923 		)
3924 	{
3925 	    /*
3926 	     *	  <Space> wraps to next line if 'whichwrap' has 's'.
3927 	     *	      'l' wraps to next line if 'whichwrap' has 'l'.
3928 	     * CURS_RIGHT wraps to next line if 'whichwrap' has '>'.
3929 	     */
3930 	    if (       ((cap->cmdchar == ' '
3931 			    && vim_strchr(p_ww, 's') != NULL)
3932 			|| (cap->cmdchar == 'l'
3933 			    && vim_strchr(p_ww, 'l') != NULL)
3934 			|| (cap->cmdchar == K_RIGHT
3935 			    && vim_strchr(p_ww, '>') != NULL))
3936 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
3937 	    {
3938 		// When deleting we also count the NL as a character.
3939 		// Set cap->oap->inclusive when last char in the line is
3940 		// included, move to next line after that
3941 		if (	   cap->oap->op_type != OP_NOP
3942 			&& !cap->oap->inclusive
3943 			&& !LINEEMPTY(curwin->w_cursor.lnum))
3944 		    cap->oap->inclusive = TRUE;
3945 		else
3946 		{
3947 		    ++curwin->w_cursor.lnum;
3948 		    curwin->w_cursor.col = 0;
3949 		    curwin->w_cursor.coladd = 0;
3950 		    curwin->w_set_curswant = TRUE;
3951 		    cap->oap->inclusive = FALSE;
3952 		}
3953 		continue;
3954 	    }
3955 	    if (cap->oap->op_type == OP_NOP)
3956 	    {
3957 		// Only beep and flush if not moved at all
3958 		if (n == cap->count1)
3959 		    beep_flush();
3960 	    }
3961 	    else
3962 	    {
3963 		if (!LINEEMPTY(curwin->w_cursor.lnum))
3964 		    cap->oap->inclusive = TRUE;
3965 	    }
3966 	    break;
3967 	}
3968 	else if (past_line)
3969 	{
3970 	    curwin->w_set_curswant = TRUE;
3971 	    if (virtual_active())
3972 		oneright();
3973 	    else
3974 	    {
3975 		if (has_mbyte)
3976 		    curwin->w_cursor.col += (*mb_ptr2len)(ml_get_cursor());
3977 		else
3978 		    ++curwin->w_cursor.col;
3979 	    }
3980 	}
3981     }
3982 #ifdef FEAT_FOLDING
3983     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
3984 					       && cap->oap->op_type == OP_NOP)
3985 	foldOpenCursor();
3986 #endif
3987 }
3988 
3989 /*
3990  * Cursor left commands.
3991  *
3992  * Returns TRUE when operator end should not be adjusted.
3993  */
3994     static void
3995 nv_left(cmdarg_T *cap)
3996 {
3997     long	n;
3998 
3999     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4000     {
4001 	// <C-Left> and <S-Left> move a word or WORD left
4002 	if (mod_mask & MOD_MASK_CTRL)
4003 	    cap->arg = 1;
4004 	nv_bck_word(cap);
4005 	return;
4006     }
4007 
4008     cap->oap->motion_type = MCHAR;
4009     cap->oap->inclusive = FALSE;
4010     for (n = cap->count1; n > 0; --n)
4011     {
4012 	if (oneleft() == FAIL)
4013 	{
4014 	    // <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
4015 	    //		 'h' wraps to previous line if 'whichwrap' has 'h'.
4016 	    //	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
4017 	    if (       (((cap->cmdchar == K_BS
4018 				|| cap->cmdchar == Ctrl_H)
4019 			    && vim_strchr(p_ww, 'b') != NULL)
4020 			|| (cap->cmdchar == 'h'
4021 			    && vim_strchr(p_ww, 'h') != NULL)
4022 			|| (cap->cmdchar == K_LEFT
4023 			    && vim_strchr(p_ww, '<') != NULL))
4024 		    && curwin->w_cursor.lnum > 1)
4025 	    {
4026 		--(curwin->w_cursor.lnum);
4027 		coladvance((colnr_T)MAXCOL);
4028 		curwin->w_set_curswant = TRUE;
4029 
4030 		// When the NL before the first char has to be deleted we
4031 		// put the cursor on the NUL after the previous line.
4032 		// This is a very special case, be careful!
4033 		// Don't adjust op_end now, otherwise it won't work.
4034 		if (	   (cap->oap->op_type == OP_DELETE
4035 			    || cap->oap->op_type == OP_CHANGE)
4036 			&& !LINEEMPTY(curwin->w_cursor.lnum))
4037 		{
4038 		    char_u *cp = ml_get_cursor();
4039 
4040 		    if (*cp != NUL)
4041 		    {
4042 			if (has_mbyte)
4043 			    curwin->w_cursor.col += (*mb_ptr2len)(cp);
4044 			else
4045 			    ++curwin->w_cursor.col;
4046 		    }
4047 		    cap->retval |= CA_NO_ADJ_OP_END;
4048 		}
4049 		continue;
4050 	    }
4051 	    // Only beep and flush if not moved at all
4052 	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
4053 		beep_flush();
4054 	    break;
4055 	}
4056     }
4057 #ifdef FEAT_FOLDING
4058     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
4059 					       && cap->oap->op_type == OP_NOP)
4060 	foldOpenCursor();
4061 #endif
4062 }
4063 
4064 /*
4065  * Cursor up commands.
4066  * cap->arg is TRUE for "-": Move cursor to first non-blank.
4067  */
4068     static void
4069 nv_up(cmdarg_T *cap)
4070 {
4071     if (mod_mask & MOD_MASK_SHIFT)
4072     {
4073 	// <S-Up> is page up
4074 	cap->arg = BACKWARD;
4075 	nv_page(cap);
4076     }
4077     else
4078     {
4079 	cap->oap->motion_type = MLINE;
4080 	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
4081 	    clearopbeep(cap->oap);
4082 	else if (cap->arg)
4083 	    beginline(BL_WHITE | BL_FIX);
4084     }
4085 }
4086 
4087 /*
4088  * Cursor down commands.
4089  * cap->arg is TRUE for CR and "+": Move cursor to first non-blank.
4090  */
4091     static void
4092 nv_down(cmdarg_T *cap)
4093 {
4094     if (mod_mask & MOD_MASK_SHIFT)
4095     {
4096 	// <S-Down> is page down
4097 	cap->arg = FORWARD;
4098 	nv_page(cap);
4099     }
4100 #if defined(FEAT_QUICKFIX)
4101     // Quickfix window only: view the result under the cursor.
4102     else if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
4103 	qf_view_result(FALSE);
4104 #endif
4105     else
4106     {
4107 #ifdef FEAT_CMDWIN
4108 	// In the cmdline window a <CR> executes the command.
4109 	if (cmdwin_type != 0 && cap->cmdchar == CAR)
4110 	    cmdwin_result = CAR;
4111 	else
4112 #endif
4113 #ifdef FEAT_JOB_CHANNEL
4114 	// In a prompt buffer a <CR> in the last line invokes the callback.
4115 	if (bt_prompt(curbuf) && cap->cmdchar == CAR
4116 		       && curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4117 	{
4118 	    invoke_prompt_callback();
4119 	    if (restart_edit == 0)
4120 		restart_edit = 'a';
4121 	}
4122 	else
4123 #endif
4124 	{
4125 	    cap->oap->motion_type = MLINE;
4126 	    if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
4127 		clearopbeep(cap->oap);
4128 	    else if (cap->arg)
4129 		beginline(BL_WHITE | BL_FIX);
4130 	}
4131     }
4132 }
4133 
4134 #ifdef FEAT_SEARCHPATH
4135 /*
4136  * Grab the file name under the cursor and edit it.
4137  */
4138     static void
4139 nv_gotofile(cmdarg_T *cap)
4140 {
4141     char_u	*ptr;
4142     linenr_T	lnum = -1;
4143 
4144     if (text_locked())
4145     {
4146 	clearopbeep(cap->oap);
4147 	text_locked_msg();
4148 	return;
4149     }
4150     if (curbuf_locked())
4151     {
4152 	clearop(cap->oap);
4153 	return;
4154     }
4155 #ifdef FEAT_PROP_POPUP
4156     if (ERROR_IF_TERM_POPUP_WINDOW)
4157 	return;
4158 #endif
4159 
4160     ptr = grab_file_name(cap->count1, &lnum);
4161 
4162     if (ptr != NULL)
4163     {
4164 	// do autowrite if necessary
4165 	if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !buf_hide(curbuf))
4166 	    (void)autowrite(curbuf, FALSE);
4167 	setpcmark();
4168 	if (do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
4169 				buf_hide(curbuf) ? ECMD_HIDE : 0, curwin) == OK
4170 		&& cap->nchar == 'F' && lnum >= 0)
4171 	{
4172 	    curwin->w_cursor.lnum = lnum;
4173 	    check_cursor_lnum();
4174 	    beginline(BL_SOL | BL_FIX);
4175 	}
4176 	vim_free(ptr);
4177     }
4178     else
4179 	clearop(cap->oap);
4180 }
4181 #endif
4182 
4183 /*
4184  * <End> command: to end of current line or last line.
4185  */
4186     static void
4187 nv_end(cmdarg_T *cap)
4188 {
4189     if (cap->arg || (mod_mask & MOD_MASK_CTRL))	// CTRL-END = goto last line
4190     {
4191 	cap->arg = TRUE;
4192 	nv_goto(cap);
4193 	cap->count1 = 1;		// to end of current line
4194     }
4195     nv_dollar(cap);
4196 }
4197 
4198 /*
4199  * Handle the "$" command.
4200  */
4201     static void
4202 nv_dollar(cmdarg_T *cap)
4203 {
4204     cap->oap->motion_type = MCHAR;
4205     cap->oap->inclusive = TRUE;
4206     // In virtual mode when off the edge of a line and an operator
4207     // is pending (whew!) keep the cursor where it is.
4208     // Otherwise, send it to the end of the line.
4209     if (!virtual_active() || gchar_cursor() != NUL
4210 					       || cap->oap->op_type == OP_NOP)
4211 	curwin->w_curswant = MAXCOL;	// so we stay at the end
4212     if (cursor_down((long)(cap->count1 - 1),
4213 					 cap->oap->op_type == OP_NOP) == FAIL)
4214 	clearopbeep(cap->oap);
4215 #ifdef FEAT_FOLDING
4216     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
4217 	foldOpenCursor();
4218 #endif
4219 }
4220 
4221 /*
4222  * Implementation of '?' and '/' commands.
4223  * If cap->arg is TRUE don't set PC mark.
4224  */
4225     static void
4226 nv_search(cmdarg_T *cap)
4227 {
4228     oparg_T	*oap = cap->oap;
4229     pos_T	save_cursor = curwin->w_cursor;
4230 
4231     if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
4232     {
4233 	// Translate "g??" to "g?g?"
4234 	cap->cmdchar = 'g';
4235 	cap->nchar = '?';
4236 	nv_operator(cap);
4237 	return;
4238     }
4239 
4240     // When using 'incsearch' the cursor may be moved to set a different search
4241     // start position.
4242     cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0, TRUE);
4243 
4244     if (cap->searchbuf == NULL)
4245     {
4246 	clearop(oap);
4247 	return;
4248     }
4249 
4250     (void)normal_search(cap, cap->cmdchar, cap->searchbuf,
4251 			(cap->arg || !EQUAL_POS(save_cursor, curwin->w_cursor))
4252 						      ? 0 : SEARCH_MARK, NULL);
4253 }
4254 
4255 /*
4256  * Handle "N" and "n" commands.
4257  * cap->arg is SEARCH_REV for "N", 0 for "n".
4258  */
4259     static void
4260 nv_next(cmdarg_T *cap)
4261 {
4262     pos_T   old = curwin->w_cursor;
4263     int	    wrapped = FALSE;
4264     int	    i = normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg, &wrapped);
4265 
4266     if (i == 1 && !wrapped && EQUAL_POS(old, curwin->w_cursor))
4267     {
4268 	// Avoid getting stuck on the current cursor position, which can
4269 	// happen when an offset is given and the cursor is on the last char
4270 	// in the buffer: Repeat with count + 1.
4271 	cap->count1 += 1;
4272 	(void)normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg, NULL);
4273 	cap->count1 -= 1;
4274     }
4275 }
4276 
4277 /*
4278  * Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
4279  * Uses only cap->count1 and cap->oap from "cap".
4280  * Return 0 for failure, 1 for found, 2 for found and line offset added.
4281  */
4282     static int
4283 normal_search(
4284     cmdarg_T	*cap,
4285     int		dir,
4286     char_u	*pat,
4287     int		opt,		// extra flags for do_search()
4288     int		*wrapped)
4289 {
4290     int		i;
4291     searchit_arg_T sia;
4292 
4293     cap->oap->motion_type = MCHAR;
4294     cap->oap->inclusive = FALSE;
4295     cap->oap->use_reg_one = TRUE;
4296     curwin->w_set_curswant = TRUE;
4297 
4298     CLEAR_FIELD(sia);
4299     i = do_search(cap->oap, dir, dir, pat, cap->count1,
4300 			    opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG, &sia);
4301     if (wrapped != NULL)
4302 	*wrapped = sia.sa_wrapped;
4303     if (i == 0)
4304 	clearop(cap->oap);
4305     else
4306     {
4307 	if (i == 2)
4308 	    cap->oap->motion_type = MLINE;
4309 	curwin->w_cursor.coladd = 0;
4310 #ifdef FEAT_FOLDING
4311 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
4312 	    foldOpenCursor();
4313 #endif
4314     }
4315 
4316     // "/$" will put the cursor after the end of the line, may need to
4317     // correct that here
4318     check_cursor();
4319     return i;
4320 }
4321 
4322 /*
4323  * Character search commands.
4324  * cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', TRUE for
4325  * ',' and FALSE for ';'.
4326  * cap->nchar is NUL for ',' and ';' (repeat the search)
4327  */
4328     static void
4329 nv_csearch(cmdarg_T *cap)
4330 {
4331     int		t_cmd;
4332 
4333     if (cap->cmdchar == 't' || cap->cmdchar == 'T')
4334 	t_cmd = TRUE;
4335     else
4336 	t_cmd = FALSE;
4337 
4338     cap->oap->motion_type = MCHAR;
4339     if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
4340 	clearopbeep(cap->oap);
4341     else
4342     {
4343 	curwin->w_set_curswant = TRUE;
4344 	// Include a Tab for "tx" and for "dfx".
4345 	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
4346 		&& (t_cmd || cap->oap->op_type != OP_NOP))
4347 	{
4348 	    colnr_T	scol, ecol;
4349 
4350 	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
4351 	    curwin->w_cursor.coladd = ecol - scol;
4352 	}
4353 	else
4354 	    curwin->w_cursor.coladd = 0;
4355 	adjust_for_sel(cap);
4356 #ifdef FEAT_FOLDING
4357 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
4358 	    foldOpenCursor();
4359 #endif
4360     }
4361 }
4362 
4363 /*
4364  * "[" and "]" commands.
4365  * cap->arg is BACKWARD for "[" and FORWARD for "]".
4366  */
4367     static void
4368 nv_brackets(cmdarg_T *cap)
4369 {
4370     pos_T	new_pos = {0, 0, 0};
4371     pos_T	prev_pos;
4372     pos_T	*pos = NULL;	    // init for GCC
4373     pos_T	old_pos;	    // cursor position before command
4374     int		flag;
4375     long	n;
4376     int		findc;
4377     int		c;
4378 
4379     cap->oap->motion_type = MCHAR;
4380     cap->oap->inclusive = FALSE;
4381     old_pos = curwin->w_cursor;
4382     curwin->w_cursor.coladd = 0;    // TODO: don't do this for an error.
4383 
4384 #ifdef FEAT_SEARCHPATH
4385     /*
4386      * "[f" or "]f" : Edit file under the cursor (same as "gf")
4387      */
4388     if (cap->nchar == 'f')
4389 	nv_gotofile(cap);
4390     else
4391 #endif
4392 
4393 #ifdef FEAT_FIND_ID
4394     /*
4395      * Find the occurrence(s) of the identifier or define under cursor
4396      * in current and included files or jump to the first occurrence.
4397      *
4398      *			search	     list	    jump
4399      *		      fwd   bwd    fwd	 bwd	 fwd	bwd
4400      * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
4401      * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
4402      */
4403     if (vim_strchr((char_u *)
4404 # ifdef EBCDIC
4405 		"iI\005dD\067",
4406 # else
4407 		"iI\011dD\004",
4408 # endif
4409 		cap->nchar) != NULL)
4410     {
4411 	char_u	*ptr;
4412 	int	len;
4413 
4414 	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
4415 	    clearop(cap->oap);
4416 	else
4417 	{
4418 	    find_pattern_in_path(ptr, 0, len, TRUE,
4419 		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
4420 		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
4421 		cap->count1,
4422 		isupper(cap->nchar) ? ACTION_SHOW_ALL :
4423 			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
4424 		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
4425 		(linenr_T)MAXLNUM);
4426 	    curwin->w_set_curswant = TRUE;
4427 	}
4428     }
4429     else
4430 #endif
4431 
4432     /*
4433      * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
4434      * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
4435      * "[/", "[*", "]/", "]*": go to Nth comment start/end.
4436      * "[m" or "]m" search for prev/next start of (Java) method.
4437      * "[M" or "]M" search for prev/next end of (Java) method.
4438      */
4439     if (  (cap->cmdchar == '['
4440 		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
4441 	    || (cap->cmdchar == ']'
4442 		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
4443     {
4444 	if (cap->nchar == '*')
4445 	    cap->nchar = '/';
4446 	prev_pos.lnum = 0;
4447 	if (cap->nchar == 'm' || cap->nchar == 'M')
4448 	{
4449 	    if (cap->cmdchar == '[')
4450 		findc = '{';
4451 	    else
4452 		findc = '}';
4453 	    n = 9999;
4454 	}
4455 	else
4456 	{
4457 	    findc = cap->nchar;
4458 	    n = cap->count1;
4459 	}
4460 	for ( ; n > 0; --n)
4461 	{
4462 	    if ((pos = findmatchlimit(cap->oap, findc,
4463 		(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
4464 	    {
4465 		if (new_pos.lnum == 0)	// nothing found
4466 		{
4467 		    if (cap->nchar != 'm' && cap->nchar != 'M')
4468 			clearopbeep(cap->oap);
4469 		}
4470 		else
4471 		    pos = &new_pos;	// use last one found
4472 		break;
4473 	    }
4474 	    prev_pos = new_pos;
4475 	    curwin->w_cursor = *pos;
4476 	    new_pos = *pos;
4477 	}
4478 	curwin->w_cursor = old_pos;
4479 
4480 	/*
4481 	 * Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
4482 	 * brought us to the match for "[m" and "]M" when inside a method.
4483 	 * Try finding the '{' or '}' we want to be at.
4484 	 * Also repeat for the given count.
4485 	 */
4486 	if (cap->nchar == 'm' || cap->nchar == 'M')
4487 	{
4488 	    // norm is TRUE for "]M" and "[m"
4489 	    int	    norm = ((findc == '{') == (cap->nchar == 'm'));
4490 
4491 	    n = cap->count1;
4492 	    // found a match: we were inside a method
4493 	    if (prev_pos.lnum != 0)
4494 	    {
4495 		pos = &prev_pos;
4496 		curwin->w_cursor = prev_pos;
4497 		if (norm)
4498 		    --n;
4499 	    }
4500 	    else
4501 		pos = NULL;
4502 	    while (n > 0)
4503 	    {
4504 		for (;;)
4505 		{
4506 		    if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
4507 		    {
4508 			// if not found anything, that's an error
4509 			if (pos == NULL)
4510 			    clearopbeep(cap->oap);
4511 			n = 0;
4512 			break;
4513 		    }
4514 		    c = gchar_cursor();
4515 		    if (c == '{' || c == '}')
4516 		    {
4517 			// Must have found end/start of class: use it.
4518 			// Or found the place to be at.
4519 			if ((c == findc && norm) || (n == 1 && !norm))
4520 			{
4521 			    new_pos = curwin->w_cursor;
4522 			    pos = &new_pos;
4523 			    n = 0;
4524 			}
4525 			// if no match found at all, we started outside of the
4526 			// class and we're inside now.  Just go on.
4527 			else if (new_pos.lnum == 0)
4528 			{
4529 			    new_pos = curwin->w_cursor;
4530 			    pos = &new_pos;
4531 			}
4532 			// found start/end of other method: go to match
4533 			else if ((pos = findmatchlimit(cap->oap, findc,
4534 			    (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
4535 								  0)) == NULL)
4536 			    n = 0;
4537 			else
4538 			    curwin->w_cursor = *pos;
4539 			break;
4540 		    }
4541 		}
4542 		--n;
4543 	    }
4544 	    curwin->w_cursor = old_pos;
4545 	    if (pos == NULL && new_pos.lnum != 0)
4546 		clearopbeep(cap->oap);
4547 	}
4548 	if (pos != NULL)
4549 	{
4550 	    setpcmark();
4551 	    curwin->w_cursor = *pos;
4552 	    curwin->w_set_curswant = TRUE;
4553 #ifdef FEAT_FOLDING
4554 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped
4555 					       && cap->oap->op_type == OP_NOP)
4556 		foldOpenCursor();
4557 #endif
4558 	}
4559     }
4560 
4561     /*
4562      * "[[", "[]", "]]" and "][": move to start or end of function
4563      */
4564     else if (cap->nchar == '[' || cap->nchar == ']')
4565     {
4566 	if (cap->nchar == cap->cmdchar)		    // "]]" or "[["
4567 	    flag = '{';
4568 	else
4569 	    flag = '}';		    // "][" or "[]"
4570 
4571 	curwin->w_set_curswant = TRUE;
4572 	/*
4573 	 * Imitate strange Vi behaviour: When using "]]" with an operator
4574 	 * we also stop at '}'.
4575 	 */
4576 	if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
4577 	      (cap->oap->op_type != OP_NOP
4578 				      && cap->arg == FORWARD && flag == '{')))
4579 	    clearopbeep(cap->oap);
4580 	else
4581 	{
4582 	    if (cap->oap->op_type == OP_NOP)
4583 		beginline(BL_WHITE | BL_FIX);
4584 #ifdef FEAT_FOLDING
4585 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
4586 		foldOpenCursor();
4587 #endif
4588 	}
4589     }
4590 
4591     /*
4592      * "[p", "[P", "]P" and "]p": put with indent adjustment
4593      */
4594     else if (cap->nchar == 'p' || cap->nchar == 'P')
4595     {
4596 	nv_put_opt(cap, TRUE);
4597     }
4598 
4599     /*
4600      * "['", "[`", "]'" and "]`": jump to next mark
4601      */
4602     else if (cap->nchar == '\'' || cap->nchar == '`')
4603     {
4604 	pos = &curwin->w_cursor;
4605 	for (n = cap->count1; n > 0; --n)
4606 	{
4607 	    prev_pos = *pos;
4608 	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
4609 							  cap->nchar == '\'');
4610 	    if (pos == NULL)
4611 		break;
4612 	}
4613 	if (pos == NULL)
4614 	    pos = &prev_pos;
4615 	nv_cursormark(cap, cap->nchar == '\'', pos);
4616     }
4617 
4618     /*
4619      * [ or ] followed by a middle mouse click: put selected text with
4620      * indent adjustment.  Any other button just does as usual.
4621      */
4622     else if (cap->nchar >= K_RIGHTRELEASE && cap->nchar <= K_LEFTMOUSE)
4623     {
4624 	(void)do_mouse(cap->oap, cap->nchar,
4625 		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
4626 		       cap->count1, PUT_FIXINDENT);
4627     }
4628 
4629 #ifdef FEAT_FOLDING
4630     /*
4631      * "[z" and "]z": move to start or end of open fold.
4632      */
4633     else if (cap->nchar == 'z')
4634     {
4635 	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
4636 							 cap->count1) == FAIL)
4637 	    clearopbeep(cap->oap);
4638     }
4639 #endif
4640 
4641 #ifdef FEAT_DIFF
4642     /*
4643      * "[c" and "]c": move to next or previous diff-change.
4644      */
4645     else if (cap->nchar == 'c')
4646     {
4647 	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
4648 							 cap->count1) == FAIL)
4649 	    clearopbeep(cap->oap);
4650     }
4651 #endif
4652 
4653 #ifdef FEAT_SPELL
4654     /*
4655      * "[s", "[S", "]s" and "]S": move to next spell error.
4656      */
4657     else if (cap->nchar == 's' || cap->nchar == 'S')
4658     {
4659 	setpcmark();
4660 	for (n = 0; n < cap->count1; ++n)
4661 	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
4662 			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
4663 	    {
4664 		clearopbeep(cap->oap);
4665 		break;
4666 	    }
4667 	    else
4668 		curwin->w_set_curswant = TRUE;
4669 # ifdef FEAT_FOLDING
4670 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
4671 	    foldOpenCursor();
4672 # endif
4673     }
4674 #endif
4675 
4676     // Not a valid cap->nchar.
4677     else
4678 	clearopbeep(cap->oap);
4679 }
4680 
4681 /*
4682  * Handle Normal mode "%" command.
4683  */
4684     static void
4685 nv_percent(cmdarg_T *cap)
4686 {
4687     pos_T	*pos;
4688 #if defined(FEAT_FOLDING)
4689     linenr_T	lnum = curwin->w_cursor.lnum;
4690 #endif
4691 
4692     cap->oap->inclusive = TRUE;
4693     if (cap->count0)	    // {cnt}% : goto {cnt} percentage in file
4694     {
4695 	if (cap->count0 > 100)
4696 	    clearopbeep(cap->oap);
4697 	else
4698 	{
4699 	    cap->oap->motion_type = MLINE;
4700 	    setpcmark();
4701 	    // Round up, so CTRL-G will give same value.  Watch out for a
4702 	    // large line count, the line number must not go negative!
4703 	    if (curbuf->b_ml.ml_line_count > 1000000)
4704 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99L)
4705 							 / 100L * cap->count0;
4706 	    else
4707 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
4708 						    cap->count0 + 99L) / 100L;
4709 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
4710 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4711 	    beginline(BL_SOL | BL_FIX);
4712 	}
4713     }
4714     else		    // "%" : go to matching paren
4715     {
4716 	cap->oap->motion_type = MCHAR;
4717 	cap->oap->use_reg_one = TRUE;
4718 	if ((pos = findmatch(cap->oap, NUL)) == NULL)
4719 	    clearopbeep(cap->oap);
4720 	else
4721 	{
4722 	    setpcmark();
4723 	    curwin->w_cursor = *pos;
4724 	    curwin->w_set_curswant = TRUE;
4725 	    curwin->w_cursor.coladd = 0;
4726 	    adjust_for_sel(cap);
4727 	}
4728     }
4729 #ifdef FEAT_FOLDING
4730     if (cap->oap->op_type == OP_NOP
4731 	    && lnum != curwin->w_cursor.lnum
4732 	    && (fdo_flags & FDO_PERCENT)
4733 	    && KeyTyped)
4734 	foldOpenCursor();
4735 #endif
4736 }
4737 
4738 /*
4739  * Handle "(" and ")" commands.
4740  * cap->arg is BACKWARD for "(" and FORWARD for ")".
4741  */
4742     static void
4743 nv_brace(cmdarg_T *cap)
4744 {
4745     cap->oap->motion_type = MCHAR;
4746     cap->oap->use_reg_one = TRUE;
4747     // The motion used to be inclusive for "(", but that is not what Vi does.
4748     cap->oap->inclusive = FALSE;
4749     curwin->w_set_curswant = TRUE;
4750 
4751     if (findsent(cap->arg, cap->count1) == FAIL)
4752 	clearopbeep(cap->oap);
4753     else
4754     {
4755 	// Don't leave the cursor on the NUL past end of line.
4756 	adjust_cursor(cap->oap);
4757 	curwin->w_cursor.coladd = 0;
4758 #ifdef FEAT_FOLDING
4759 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
4760 	    foldOpenCursor();
4761 #endif
4762     }
4763 }
4764 
4765 /*
4766  * "m" command: Mark a position.
4767  */
4768     static void
4769 nv_mark(cmdarg_T *cap)
4770 {
4771     if (!checkclearop(cap->oap))
4772     {
4773 	if (setmark(cap->nchar) == FAIL)
4774 	    clearopbeep(cap->oap);
4775     }
4776 }
4777 
4778 /*
4779  * "{" and "}" commands.
4780  * cmd->arg is BACKWARD for "{" and FORWARD for "}".
4781  */
4782     static void
4783 nv_findpar(cmdarg_T *cap)
4784 {
4785     cap->oap->motion_type = MCHAR;
4786     cap->oap->inclusive = FALSE;
4787     cap->oap->use_reg_one = TRUE;
4788     curwin->w_set_curswant = TRUE;
4789     if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, FALSE))
4790 	clearopbeep(cap->oap);
4791     else
4792     {
4793 	curwin->w_cursor.coladd = 0;
4794 #ifdef FEAT_FOLDING
4795 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
4796 	    foldOpenCursor();
4797 #endif
4798     }
4799 }
4800 
4801 /*
4802  * "u" command: Undo or make lower case.
4803  */
4804     static void
4805 nv_undo(cmdarg_T *cap)
4806 {
4807     if (cap->oap->op_type == OP_LOWER || VIsual_active)
4808     {
4809 	// translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu"
4810 	cap->cmdchar = 'g';
4811 	cap->nchar = 'u';
4812 	nv_operator(cap);
4813     }
4814     else
4815 	nv_kundo(cap);
4816 }
4817 
4818 /*
4819  * <Undo> command.
4820  */
4821     static void
4822 nv_kundo(cmdarg_T *cap)
4823 {
4824     if (!checkclearopq(cap->oap))
4825     {
4826 #ifdef FEAT_JOB_CHANNEL
4827 	if (bt_prompt(curbuf))
4828 	{
4829 	    clearopbeep(cap->oap);
4830 	    return;
4831 	}
4832 #endif
4833 	u_undo((int)cap->count1);
4834 	curwin->w_set_curswant = TRUE;
4835     }
4836 }
4837 
4838 /*
4839  * Handle the "r" command.
4840  */
4841     static void
4842 nv_replace(cmdarg_T *cap)
4843 {
4844     char_u	*ptr;
4845     int		had_ctrl_v;
4846     long	n;
4847 
4848     if (checkclearop(cap->oap))
4849 	return;
4850 #ifdef FEAT_JOB_CHANNEL
4851     if (bt_prompt(curbuf) && !prompt_curpos_editable())
4852     {
4853 	clearopbeep(cap->oap);
4854 	return;
4855     }
4856 #endif
4857 
4858     // get another character
4859     if (cap->nchar == Ctrl_V)
4860     {
4861 	had_ctrl_v = Ctrl_V;
4862 	cap->nchar = get_literal();
4863 	// Don't redo a multibyte character with CTRL-V.
4864 	if (cap->nchar > DEL)
4865 	    had_ctrl_v = NUL;
4866     }
4867     else
4868 	had_ctrl_v = NUL;
4869 
4870     // Abort if the character is a special key.
4871     if (IS_SPECIAL(cap->nchar))
4872     {
4873 	clearopbeep(cap->oap);
4874 	return;
4875     }
4876 
4877     // Visual mode "r"
4878     if (VIsual_active)
4879     {
4880 	if (got_int)
4881 	    reset_VIsual();
4882 	if (had_ctrl_v)
4883 	{
4884 	    // Use a special (negative) number to make a difference between a
4885 	    // literal CR or NL and a line break.
4886 	    if (cap->nchar == CAR)
4887 		cap->nchar = REPLACE_CR_NCHAR;
4888 	    else if (cap->nchar == NL)
4889 		cap->nchar = REPLACE_NL_NCHAR;
4890 	}
4891 	nv_operator(cap);
4892 	return;
4893     }
4894 
4895     // Break tabs, etc.
4896     if (virtual_active())
4897     {
4898 	if (u_save_cursor() == FAIL)
4899 	    return;
4900 	if (gchar_cursor() == NUL)
4901 	{
4902 	    // Add extra space and put the cursor on the first one.
4903 	    coladvance_force((colnr_T)(getviscol() + cap->count1));
4904 	    curwin->w_cursor.col -= cap->count1;
4905 	}
4906 	else if (gchar_cursor() == TAB)
4907 	    coladvance_force(getviscol());
4908     }
4909 
4910     // Abort if not enough characters to replace.
4911     ptr = ml_get_cursor();
4912     if (STRLEN(ptr) < (unsigned)cap->count1
4913 	    || (has_mbyte && mb_charlen(ptr) < cap->count1))
4914     {
4915 	clearopbeep(cap->oap);
4916 	return;
4917     }
4918 
4919     /*
4920      * Replacing with a TAB is done by edit() when it is complicated because
4921      * 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
4922      * Other characters are done below to avoid problems with things like
4923      * CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
4924      */
4925     if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
4926     {
4927 	stuffnumReadbuff(cap->count1);
4928 	stuffcharReadbuff('R');
4929 	stuffcharReadbuff('\t');
4930 	stuffcharReadbuff(ESC);
4931 	return;
4932     }
4933 
4934     // save line for undo
4935     if (u_save_cursor() == FAIL)
4936 	return;
4937 
4938     if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
4939     {
4940 	/*
4941 	 * Replace character(s) by a single newline.
4942 	 * Strange vi behaviour: Only one newline is inserted.
4943 	 * Delete the characters here.
4944 	 * Insert the newline with an insert command, takes care of
4945 	 * autoindent.	The insert command depends on being on the last
4946 	 * character of a line or not.
4947 	 */
4948 	(void)del_chars(cap->count1, FALSE);	// delete the characters
4949 	stuffcharReadbuff('\r');
4950 	stuffcharReadbuff(ESC);
4951 
4952 	// Give 'r' to edit(), to get the redo command right.
4953 	invoke_edit(cap, TRUE, 'r', FALSE);
4954     }
4955     else
4956     {
4957 	prep_redo(cap->oap->regname, cap->count1,
4958 				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);
4959 
4960 	curbuf->b_op_start = curwin->w_cursor;
4961 	if (has_mbyte)
4962 	{
4963 	    int		old_State = State;
4964 
4965 	    if (cap->ncharC1 != 0)
4966 		AppendCharToRedobuff(cap->ncharC1);
4967 	    if (cap->ncharC2 != 0)
4968 		AppendCharToRedobuff(cap->ncharC2);
4969 
4970 	    // This is slow, but it handles replacing a single-byte with a
4971 	    // multi-byte and the other way around.  Also handles adding
4972 	    // composing characters for utf-8.
4973 	    for (n = cap->count1; n > 0; --n)
4974 	    {
4975 		State = REPLACE;
4976 		if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y)
4977 		{
4978 		    int c = ins_copychar(curwin->w_cursor.lnum
4979 					   + (cap->nchar == Ctrl_Y ? -1 : 1));
4980 		    if (c != NUL)
4981 			ins_char(c);
4982 		    else
4983 			// will be decremented further down
4984 			++curwin->w_cursor.col;
4985 		}
4986 		else
4987 		    ins_char(cap->nchar);
4988 		State = old_State;
4989 		if (cap->ncharC1 != 0)
4990 		    ins_char(cap->ncharC1);
4991 		if (cap->ncharC2 != 0)
4992 		    ins_char(cap->ncharC2);
4993 	    }
4994 	}
4995 	else
4996 	{
4997 	    /*
4998 	     * Replace the characters within one line.
4999 	     */
5000 	    for (n = cap->count1; n > 0; --n)
5001 	    {
5002 		/*
5003 		 * Get ptr again, because u_save and/or showmatch() will have
5004 		 * released the line.  At the same time we let know that the
5005 		 * line will be changed.
5006 		 */
5007 		ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
5008 		if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y)
5009 		{
5010 		  int c = ins_copychar(curwin->w_cursor.lnum
5011 					   + (cap->nchar == Ctrl_Y ? -1 : 1));
5012 		  if (c != NUL)
5013 		    ptr[curwin->w_cursor.col] = c;
5014 		}
5015 		else
5016 		    ptr[curwin->w_cursor.col] = cap->nchar;
5017 		if (p_sm && msg_silent == 0)
5018 		    showmatch(cap->nchar);
5019 		++curwin->w_cursor.col;
5020 	    }
5021 #ifdef FEAT_NETBEANS_INTG
5022 	    if (netbeans_active())
5023 	    {
5024 		colnr_T  start = (colnr_T)(curwin->w_cursor.col - cap->count1);
5025 
5026 		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
5027 							   (long)cap->count1);
5028 		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
5029 					       &ptr[start], (int)cap->count1);
5030 	    }
5031 #endif
5032 
5033 	    // mark the buffer as changed and prepare for displaying
5034 	    changed_bytes(curwin->w_cursor.lnum,
5035 			       (colnr_T)(curwin->w_cursor.col - cap->count1));
5036 	}
5037 	--curwin->w_cursor.col;	    // cursor on the last replaced char
5038 	// if the character on the left of the current cursor is a multi-byte
5039 	// character, move two characters left
5040 	if (has_mbyte)
5041 	    mb_adjust_cursor();
5042 	curbuf->b_op_end = curwin->w_cursor;
5043 	curwin->w_set_curswant = TRUE;
5044 	set_last_insert(cap->nchar);
5045     }
5046 }
5047 
5048 /*
5049  * 'o': Exchange start and end of Visual area.
5050  * 'O': same, but in block mode exchange left and right corners.
5051  */
5052     static void
5053 v_swap_corners(int cmdchar)
5054 {
5055     pos_T	old_cursor;
5056     colnr_T	left, right;
5057 
5058     if (cmdchar == 'O' && VIsual_mode == Ctrl_V)
5059     {
5060 	old_cursor = curwin->w_cursor;
5061 	getvcols(curwin, &old_cursor, &VIsual, &left, &right);
5062 	curwin->w_cursor.lnum = VIsual.lnum;
5063 	coladvance(left);
5064 	VIsual = curwin->w_cursor;
5065 
5066 	curwin->w_cursor.lnum = old_cursor.lnum;
5067 	curwin->w_curswant = right;
5068 	// 'selection "exclusive" and cursor at right-bottom corner: move it
5069 	// right one column
5070 	if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e')
5071 	    ++curwin->w_curswant;
5072 	coladvance(curwin->w_curswant);
5073 	if (curwin->w_cursor.col == old_cursor.col
5074 		&& (!virtual_active()
5075 		    || curwin->w_cursor.coladd == old_cursor.coladd))
5076 	{
5077 	    curwin->w_cursor.lnum = VIsual.lnum;
5078 	    if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e')
5079 		++right;
5080 	    coladvance(right);
5081 	    VIsual = curwin->w_cursor;
5082 
5083 	    curwin->w_cursor.lnum = old_cursor.lnum;
5084 	    coladvance(left);
5085 	    curwin->w_curswant = left;
5086 	}
5087     }
5088     else
5089     {
5090 	old_cursor = curwin->w_cursor;
5091 	curwin->w_cursor = VIsual;
5092 	VIsual = old_cursor;
5093 	curwin->w_set_curswant = TRUE;
5094     }
5095 }
5096 
5097 /*
5098  * "R" (cap->arg is FALSE) and "gR" (cap->arg is TRUE).
5099  */
5100     static void
5101 nv_Replace(cmdarg_T *cap)
5102 {
5103     if (VIsual_active)		// "R" is replace lines
5104     {
5105 	cap->cmdchar = 'c';
5106 	cap->nchar = NUL;
5107 	VIsual_mode_orig = VIsual_mode; // remember original area for gv
5108 	VIsual_mode = 'V';
5109 	nv_operator(cap);
5110     }
5111     else if (!checkclearopq(cap->oap))
5112     {
5113 	if (!curbuf->b_p_ma)
5114 	    emsg(_(e_modifiable));
5115 	else
5116 	{
5117 	    if (virtual_active())
5118 		coladvance(getviscol());
5119 	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
5120 	}
5121     }
5122 }
5123 
5124 /*
5125  * "gr".
5126  */
5127     static void
5128 nv_vreplace(cmdarg_T *cap)
5129 {
5130     if (VIsual_active)
5131     {
5132 	cap->cmdchar = 'r';
5133 	cap->nchar = cap->extra_char;
5134 	nv_replace(cap);	// Do same as "r" in Visual mode for now
5135     }
5136     else if (!checkclearopq(cap->oap))
5137     {
5138 	if (!curbuf->b_p_ma)
5139 	    emsg(_(e_modifiable));
5140 	else
5141 	{
5142 	    if (cap->extra_char == Ctrl_V)	// get another character
5143 		cap->extra_char = get_literal();
5144 	    stuffcharReadbuff(cap->extra_char);
5145 	    stuffcharReadbuff(ESC);
5146 	    if (virtual_active())
5147 		coladvance(getviscol());
5148 	    invoke_edit(cap, TRUE, 'v', FALSE);
5149 	}
5150     }
5151 }
5152 
5153 /*
5154  * Swap case for "~" command, when it does not work like an operator.
5155  */
5156     static void
5157 n_swapchar(cmdarg_T *cap)
5158 {
5159     long	n;
5160     pos_T	startpos;
5161     int		did_change = 0;
5162 #ifdef FEAT_NETBEANS_INTG
5163     pos_T	pos;
5164     char_u	*ptr;
5165     int		count;
5166 #endif
5167 
5168     if (checkclearopq(cap->oap))
5169 	return;
5170 
5171     if (LINEEMPTY(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
5172     {
5173 	clearopbeep(cap->oap);
5174 	return;
5175     }
5176 
5177     prep_redo_cmd(cap);
5178 
5179     if (u_save_cursor() == FAIL)
5180 	return;
5181 
5182     startpos = curwin->w_cursor;
5183 #ifdef FEAT_NETBEANS_INTG
5184     pos = startpos;
5185 #endif
5186     for (n = cap->count1; n > 0; --n)
5187     {
5188 	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
5189 	inc_cursor();
5190 	if (gchar_cursor() == NUL)
5191 	{
5192 	    if (vim_strchr(p_ww, '~') != NULL
5193 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
5194 	    {
5195 #ifdef FEAT_NETBEANS_INTG
5196 		if (netbeans_active())
5197 		{
5198 		    if (did_change)
5199 		    {
5200 			ptr = ml_get(pos.lnum);
5201 			count = (int)STRLEN(ptr) - pos.col;
5202 			netbeans_removed(curbuf, pos.lnum, pos.col,
5203 								 (long)count);
5204 			netbeans_inserted(curbuf, pos.lnum, pos.col,
5205 							&ptr[pos.col], count);
5206 		    }
5207 		    pos.col = 0;
5208 		    pos.lnum++;
5209 		}
5210 #endif
5211 		++curwin->w_cursor.lnum;
5212 		curwin->w_cursor.col = 0;
5213 		if (n > 1)
5214 		{
5215 		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
5216 			break;
5217 		    u_clearline();
5218 		}
5219 	    }
5220 	    else
5221 		break;
5222 	}
5223     }
5224 #ifdef FEAT_NETBEANS_INTG
5225     if (did_change && netbeans_active())
5226     {
5227 	ptr = ml_get(pos.lnum);
5228 	count = curwin->w_cursor.col - pos.col;
5229 	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
5230 	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
5231     }
5232 #endif
5233 
5234 
5235     check_cursor();
5236     curwin->w_set_curswant = TRUE;
5237     if (did_change)
5238     {
5239 	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
5240 									  0L);
5241 	curbuf->b_op_start = startpos;
5242 	curbuf->b_op_end = curwin->w_cursor;
5243 	if (curbuf->b_op_end.col > 0)
5244 	    --curbuf->b_op_end.col;
5245     }
5246 }
5247 
5248 /*
5249  * Move cursor to mark.
5250  */
5251     static void
5252 nv_cursormark(cmdarg_T *cap, int flag, pos_T *pos)
5253 {
5254     if (check_mark(pos) == FAIL)
5255 	clearop(cap->oap);
5256     else
5257     {
5258 	if (cap->cmdchar == '\''
5259 		|| cap->cmdchar == '`'
5260 		|| cap->cmdchar == '['
5261 		|| cap->cmdchar == ']')
5262 	    setpcmark();
5263 	curwin->w_cursor = *pos;
5264 	if (flag)
5265 	    beginline(BL_WHITE | BL_FIX);
5266 	else
5267 	    check_cursor();
5268     }
5269     cap->oap->motion_type = flag ? MLINE : MCHAR;
5270     if (cap->cmdchar == '`')
5271 	cap->oap->use_reg_one = TRUE;
5272     cap->oap->inclusive = FALSE;		// ignored if not MCHAR
5273     curwin->w_set_curswant = TRUE;
5274 }
5275 
5276 /*
5277  * Handle commands that are operators in Visual mode.
5278  */
5279     static void
5280 v_visop(cmdarg_T *cap)
5281 {
5282     static char_u trans[] = "YyDdCcxdXdAAIIrr";
5283 
5284     // Uppercase means linewise, except in block mode, then "D" deletes till
5285     // the end of the line, and "C" replaces till EOL
5286     if (isupper(cap->cmdchar))
5287     {
5288 	if (VIsual_mode != Ctrl_V)
5289 	{
5290 	    VIsual_mode_orig = VIsual_mode;
5291 	    VIsual_mode = 'V';
5292 	}
5293 	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
5294 	    curwin->w_curswant = MAXCOL;
5295     }
5296     cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
5297     nv_operator(cap);
5298 }
5299 
5300 /*
5301  * "s" and "S" commands.
5302  */
5303     static void
5304 nv_subst(cmdarg_T *cap)
5305 {
5306 #ifdef FEAT_TERMINAL
5307     // When showing output of term_dumpdiff() swap the top and botom.
5308     if (term_swap_diff() == OK)
5309 	return;
5310 #endif
5311 #ifdef FEAT_JOB_CHANNEL
5312     if (bt_prompt(curbuf) && !prompt_curpos_editable())
5313     {
5314 	clearopbeep(cap->oap);
5315 	return;
5316     }
5317 #endif
5318     if (VIsual_active)	// "vs" and "vS" are the same as "vc"
5319     {
5320 	if (cap->cmdchar == 'S')
5321 	{
5322 	    VIsual_mode_orig = VIsual_mode;
5323 	    VIsual_mode = 'V';
5324 	}
5325 	cap->cmdchar = 'c';
5326 	nv_operator(cap);
5327     }
5328     else
5329 	nv_optrans(cap);
5330 }
5331 
5332 /*
5333  * Abbreviated commands.
5334  */
5335     static void
5336 nv_abbrev(cmdarg_T *cap)
5337 {
5338     if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
5339 	cap->cmdchar = 'x';		// DEL key behaves like 'x'
5340 
5341     // in Visual mode these commands are operators
5342     if (VIsual_active)
5343 	v_visop(cap);
5344     else
5345 	nv_optrans(cap);
5346 }
5347 
5348 /*
5349  * Translate a command into another command.
5350  */
5351     static void
5352 nv_optrans(cmdarg_T *cap)
5353 {
5354     static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
5355 			      (char_u *)"d$", (char_u *)"c$",
5356 			      (char_u *)"cl", (char_u *)"cc",
5357 			      (char_u *)"yy", (char_u *)":s\r"};
5358     static char_u *str = (char_u *)"xXDCsSY&";
5359 
5360     if (!checkclearopq(cap->oap))
5361     {
5362 	// In Vi "2D" doesn't delete the next line.  Can't translate it
5363 	// either, because "2." should also not use the count.
5364 	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
5365 	{
5366 	    cap->oap->start = curwin->w_cursor;
5367 	    cap->oap->op_type = OP_DELETE;
5368 #ifdef FEAT_EVAL
5369 	    set_op_var(OP_DELETE);
5370 #endif
5371 	    cap->count1 = 1;
5372 	    nv_dollar(cap);
5373 	    finish_op = TRUE;
5374 	    ResetRedobuff();
5375 	    AppendCharToRedobuff('D');
5376 	}
5377 	else
5378 	{
5379 	    if (cap->count0)
5380 		stuffnumReadbuff(cap->count0);
5381 	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
5382 	}
5383     }
5384     cap->opcount = 0;
5385 }
5386 
5387 /*
5388  * "'" and "`" commands.  Also for "g'" and "g`".
5389  * cap->arg is TRUE for "'" and "g'".
5390  */
5391     static void
5392 nv_gomark(cmdarg_T *cap)
5393 {
5394     pos_T	*pos;
5395     int		c;
5396 #ifdef FEAT_FOLDING
5397     pos_T	old_cursor = curwin->w_cursor;
5398     int		old_KeyTyped = KeyTyped;    // getting file may reset it
5399 #endif
5400 
5401     if (cap->cmdchar == 'g')
5402 	c = cap->extra_char;
5403     else
5404 	c = cap->nchar;
5405     pos = getmark(c, (cap->oap->op_type == OP_NOP));
5406     if (pos == (pos_T *)-1)	    // jumped to other file
5407     {
5408 	if (cap->arg)
5409 	{
5410 	    check_cursor_lnum();
5411 	    beginline(BL_WHITE | BL_FIX);
5412 	}
5413 	else
5414 	    check_cursor();
5415     }
5416     else
5417 	nv_cursormark(cap, cap->arg, pos);
5418 
5419     // May need to clear the coladd that a mark includes.
5420     if (!virtual_active())
5421 	curwin->w_cursor.coladd = 0;
5422     check_cursor_col();
5423 #ifdef FEAT_FOLDING
5424     if (cap->oap->op_type == OP_NOP
5425 	    && pos != NULL
5426 	    && (pos == (pos_T *)-1 || !EQUAL_POS(old_cursor, *pos))
5427 	    && (fdo_flags & FDO_MARK)
5428 	    && old_KeyTyped)
5429 	foldOpenCursor();
5430 #endif
5431 }
5432 
5433 /*
5434  * Handle CTRL-O, CTRL-I, "g;" and "g," commands.
5435  */
5436     static void
5437 nv_pcmark(cmdarg_T *cap)
5438 {
5439 #ifdef FEAT_JUMPLIST
5440     pos_T	*pos;
5441 # ifdef FEAT_FOLDING
5442     linenr_T	lnum = curwin->w_cursor.lnum;
5443     int		old_KeyTyped = KeyTyped;    // getting file may reset it
5444 # endif
5445 
5446     if (!checkclearopq(cap->oap))
5447     {
5448 	if (cap->cmdchar == 'g')
5449 	    pos = movechangelist((int)cap->count1);
5450 	else
5451 	    pos = movemark((int)cap->count1);
5452 	if (pos == (pos_T *)-1)		// jump to other file
5453 	{
5454 	    curwin->w_set_curswant = TRUE;
5455 	    check_cursor();
5456 	}
5457 	else if (pos != NULL)		    // can jump
5458 	    nv_cursormark(cap, FALSE, pos);
5459 	else if (cap->cmdchar == 'g')
5460 	{
5461 	    if (curbuf->b_changelistlen == 0)
5462 		emsg(_("E664: changelist is empty"));
5463 	    else if (cap->count1 < 0)
5464 		emsg(_("E662: At start of changelist"));
5465 	    else
5466 		emsg(_("E663: At end of changelist"));
5467 	}
5468 	else
5469 	    clearopbeep(cap->oap);
5470 # ifdef FEAT_FOLDING
5471 	if (cap->oap->op_type == OP_NOP
5472 		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
5473 		&& (fdo_flags & FDO_MARK)
5474 		&& old_KeyTyped)
5475 	    foldOpenCursor();
5476 # endif
5477     }
5478 #else
5479     clearopbeep(cap->oap);
5480 #endif
5481 }
5482 
5483 /*
5484  * Handle '"' command.
5485  */
5486     static void
5487 nv_regname(cmdarg_T *cap)
5488 {
5489     if (checkclearop(cap->oap))
5490 	return;
5491 #ifdef FEAT_EVAL
5492     if (cap->nchar == '=')
5493 	cap->nchar = get_expr_register();
5494 #endif
5495     if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
5496     {
5497 	cap->oap->regname = cap->nchar;
5498 	cap->opcount = cap->count0;	// remember count before '"'
5499 #ifdef FEAT_EVAL
5500 	set_reg_var(cap->oap->regname);
5501 #endif
5502     }
5503     else
5504 	clearopbeep(cap->oap);
5505 }
5506 
5507 /*
5508  * Handle "v", "V" and "CTRL-V" commands.
5509  * Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
5510  * is TRUE.
5511  * Handle CTRL-Q just like CTRL-V.
5512  */
5513     static void
5514 nv_visual(cmdarg_T *cap)
5515 {
5516     if (cap->cmdchar == Ctrl_Q)
5517 	cap->cmdchar = Ctrl_V;
5518 
5519     // 'v', 'V' and CTRL-V can be used while an operator is pending to make it
5520     // characterwise, linewise, or blockwise.
5521     if (cap->oap->op_type != OP_NOP)
5522     {
5523 	motion_force = cap->oap->motion_force = cap->cmdchar;
5524 	finish_op = FALSE;	// operator doesn't finish now but later
5525 	return;
5526     }
5527 
5528     VIsual_select = cap->arg;
5529     if (VIsual_active)	    // change Visual mode
5530     {
5531 	if (VIsual_mode == cap->cmdchar)    // stop visual mode
5532 	    end_visual_mode();
5533 	else				    // toggle char/block mode
5534 	{				    //	   or char/line mode
5535 	    VIsual_mode = cap->cmdchar;
5536 	    showmode();
5537 	}
5538 	redraw_curbuf_later(INVERTED);	    // update the inversion
5539     }
5540     else		    // start Visual mode
5541     {
5542 	check_visual_highlight();
5543 	if (cap->count0 > 0 && resel_VIsual_mode != NUL)
5544 	{
5545 	    // use previously selected part
5546 	    VIsual = curwin->w_cursor;
5547 
5548 	    VIsual_active = TRUE;
5549 	    VIsual_reselect = TRUE;
5550 	    if (!cap->arg)
5551 		// start Select mode when 'selectmode' contains "cmd"
5552 		may_start_select('c');
5553 	    setmouse();
5554 	    if (p_smd && msg_silent == 0)
5555 		redraw_cmdline = TRUE;	    // show visual mode later
5556 	    /*
5557 	     * For V and ^V, we multiply the number of lines even if there
5558 	     * was only one -- webb
5559 	     */
5560 	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
5561 	    {
5562 		curwin->w_cursor.lnum +=
5563 				    resel_VIsual_line_count * cap->count0 - 1;
5564 		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
5565 		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
5566 	    }
5567 	    VIsual_mode = resel_VIsual_mode;
5568 	    if (VIsual_mode == 'v')
5569 	    {
5570 		if (resel_VIsual_line_count <= 1)
5571 		{
5572 		    validate_virtcol();
5573 		    curwin->w_curswant = curwin->w_virtcol
5574 					+ resel_VIsual_vcol * cap->count0 - 1;
5575 		}
5576 		else
5577 		    curwin->w_curswant = resel_VIsual_vcol;
5578 		coladvance(curwin->w_curswant);
5579 	    }
5580 	    if (resel_VIsual_vcol == MAXCOL)
5581 	    {
5582 		curwin->w_curswant = MAXCOL;
5583 		coladvance((colnr_T)MAXCOL);
5584 	    }
5585 	    else if (VIsual_mode == Ctrl_V)
5586 	    {
5587 		validate_virtcol();
5588 		curwin->w_curswant = curwin->w_virtcol
5589 					+ resel_VIsual_vcol * cap->count0 - 1;
5590 		coladvance(curwin->w_curswant);
5591 	    }
5592 	    else
5593 		curwin->w_set_curswant = TRUE;
5594 	    redraw_curbuf_later(INVERTED);	// show the inversion
5595 	}
5596 	else
5597 	{
5598 	    if (!cap->arg)
5599 		// start Select mode when 'selectmode' contains "cmd"
5600 		may_start_select('c');
5601 	    n_start_visual_mode(cap->cmdchar);
5602 	    if (VIsual_mode != 'V' && *p_sel == 'e')
5603 		++cap->count1;  // include one more char
5604 	    if (cap->count0 > 0 && --cap->count1 > 0)
5605 	    {
5606 		// With a count select that many characters or lines.
5607 		if (VIsual_mode == 'v' || VIsual_mode == Ctrl_V)
5608 		    nv_right(cap);
5609 		else if (VIsual_mode == 'V')
5610 		    nv_down(cap);
5611 	    }
5612 	}
5613     }
5614 }
5615 
5616 /*
5617  * Start selection for Shift-movement keys.
5618  */
5619     void
5620 start_selection(void)
5621 {
5622     // if 'selectmode' contains "key", start Select mode
5623     may_start_select('k');
5624     n_start_visual_mode('v');
5625 }
5626 
5627 /*
5628  * Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
5629  */
5630     void
5631 may_start_select(int c)
5632 {
5633     VIsual_select = (stuff_empty() && typebuf_typed()
5634 		    && (vim_strchr(p_slm, c) != NULL));
5635 }
5636 
5637 /*
5638  * Start Visual mode "c".
5639  * Should set VIsual_select before calling this.
5640  */
5641     static void
5642 n_start_visual_mode(int c)
5643 {
5644 #ifdef FEAT_CONCEAL
5645     // Check for redraw before changing the state.
5646     conceal_check_cursor_line();
5647 #endif
5648 
5649     VIsual_mode = c;
5650     VIsual_active = TRUE;
5651     VIsual_reselect = TRUE;
5652 
5653     // Corner case: the 0 position in a tab may change when going into
5654     // virtualedit.  Recalculate curwin->w_cursor to avoid bad highlighting.
5655     if (c == Ctrl_V && (ve_flags & VE_BLOCK) && gchar_cursor() == TAB)
5656     {
5657 	validate_virtcol();
5658 	coladvance(curwin->w_virtcol);
5659     }
5660     VIsual = curwin->w_cursor;
5661 
5662 #ifdef FEAT_FOLDING
5663     foldAdjustVisual();
5664 #endif
5665 
5666     setmouse();
5667 #ifdef FEAT_CONCEAL
5668     // Check for redraw after changing the state.
5669     conceal_check_cursor_line();
5670 #endif
5671 
5672     if (p_smd && msg_silent == 0)
5673 	redraw_cmdline = TRUE;	// show visual mode later
5674 #ifdef FEAT_CLIPBOARD
5675     // Make sure the clipboard gets updated.  Needed because start and
5676     // end may still be the same, and the selection needs to be owned
5677     clip_star.vmode = NUL;
5678 #endif
5679 
5680     // Only need to redraw this line, unless still need to redraw an old
5681     // Visual area (when 'lazyredraw' is set).
5682     if (curwin->w_redr_type < INVERTED)
5683     {
5684 	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
5685 	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
5686     }
5687 }
5688 
5689 
5690 /*
5691  * CTRL-W: Window commands
5692  */
5693     static void
5694 nv_window(cmdarg_T *cap)
5695 {
5696     if (cap->nchar == ':')
5697     {
5698 	// "CTRL-W :" is the same as typing ":"; useful in a terminal window
5699 	cap->cmdchar = ':';
5700 	cap->nchar = NUL;
5701 	nv_colon(cap);
5702     }
5703     else if (!checkclearop(cap->oap))
5704 	do_window(cap->nchar, cap->count0, NUL); // everything is in window.c
5705 }
5706 
5707 /*
5708  * CTRL-Z: Suspend
5709  */
5710     static void
5711 nv_suspend(cmdarg_T *cap)
5712 {
5713     clearop(cap->oap);
5714     if (VIsual_active)
5715 	end_visual_mode();		// stop Visual mode
5716     do_cmdline_cmd((char_u *)"st");
5717 }
5718 
5719 /*
5720  * Commands starting with "g".
5721  */
5722     static void
5723 nv_g_cmd(cmdarg_T *cap)
5724 {
5725     oparg_T	*oap = cap->oap;
5726     pos_T	tpos;
5727     int		i;
5728     int		flag = FALSE;
5729 
5730     switch (cap->nchar)
5731     {
5732     case Ctrl_A:
5733     case Ctrl_X:
5734 #ifdef MEM_PROFILE
5735     /*
5736      * "g^A": dump log of used memory.
5737      */
5738 	if (!VIsual_active && cap->nchar == Ctrl_A)
5739 	    vim_mem_profile_dump();
5740 	else
5741 #endif
5742     /*
5743      * "g^A/g^X": sequentially increment visually selected region
5744      */
5745 	     if (VIsual_active)
5746 	{
5747 	    cap->arg = TRUE;
5748 	    cap->cmdchar = cap->nchar;
5749 	    cap->nchar = NUL;
5750 	    nv_addsub(cap);
5751 	}
5752 	else
5753 	    clearopbeep(oap);
5754 	break;
5755 
5756     /*
5757      * "gR": Enter virtual replace mode.
5758      */
5759     case 'R':
5760 	cap->arg = TRUE;
5761 	nv_Replace(cap);
5762 	break;
5763 
5764     case 'r':
5765 	nv_vreplace(cap);
5766 	break;
5767 
5768     case '&':
5769 	do_cmdline_cmd((char_u *)"%s//~/&");
5770 	break;
5771 
5772     /*
5773      * "gv": Reselect the previous Visual area.  If Visual already active,
5774      *	     exchange previous and current Visual area.
5775      */
5776     case 'v':
5777 	if (checkclearop(oap))
5778 	    break;
5779 
5780 	if (	   curbuf->b_visual.vi_start.lnum == 0
5781 		|| curbuf->b_visual.vi_start.lnum > curbuf->b_ml.ml_line_count
5782 		|| curbuf->b_visual.vi_end.lnum == 0)
5783 	    beep_flush();
5784 	else
5785 	{
5786 	    // set w_cursor to the start of the Visual area, tpos to the end
5787 	    if (VIsual_active)
5788 	    {
5789 		i = VIsual_mode;
5790 		VIsual_mode = curbuf->b_visual.vi_mode;
5791 		curbuf->b_visual.vi_mode = i;
5792 # ifdef FEAT_EVAL
5793 		curbuf->b_visual_mode_eval = i;
5794 # endif
5795 		i = curwin->w_curswant;
5796 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
5797 		curbuf->b_visual.vi_curswant = i;
5798 
5799 		tpos = curbuf->b_visual.vi_end;
5800 		curbuf->b_visual.vi_end = curwin->w_cursor;
5801 		curwin->w_cursor = curbuf->b_visual.vi_start;
5802 		curbuf->b_visual.vi_start = VIsual;
5803 	    }
5804 	    else
5805 	    {
5806 		VIsual_mode = curbuf->b_visual.vi_mode;
5807 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
5808 		tpos = curbuf->b_visual.vi_end;
5809 		curwin->w_cursor = curbuf->b_visual.vi_start;
5810 	    }
5811 
5812 	    VIsual_active = TRUE;
5813 	    VIsual_reselect = TRUE;
5814 
5815 	    // Set Visual to the start and w_cursor to the end of the Visual
5816 	    // area.  Make sure they are on an existing character.
5817 	    check_cursor();
5818 	    VIsual = curwin->w_cursor;
5819 	    curwin->w_cursor = tpos;
5820 	    check_cursor();
5821 	    update_topline();
5822 	    /*
5823 	     * When called from normal "g" command: start Select mode when
5824 	     * 'selectmode' contains "cmd".  When called for K_SELECT, always
5825 	     * start Select mode.
5826 	     */
5827 	    if (cap->arg)
5828 		VIsual_select = TRUE;
5829 	    else
5830 		may_start_select('c');
5831 	    setmouse();
5832 #ifdef FEAT_CLIPBOARD
5833 	    // Make sure the clipboard gets updated.  Needed because start and
5834 	    // end are still the same, and the selection needs to be owned
5835 	    clip_star.vmode = NUL;
5836 #endif
5837 	    redraw_curbuf_later(INVERTED);
5838 	    showmode();
5839 	}
5840 	break;
5841     /*
5842      * "gV": Don't reselect the previous Visual area after a Select mode
5843      *	     mapping of menu.
5844      */
5845     case 'V':
5846 	VIsual_reselect = FALSE;
5847 	break;
5848 
5849     /*
5850      * "gh":  start Select mode.
5851      * "gH":  start Select line mode.
5852      * "g^H": start Select block mode.
5853      */
5854     case K_BS:
5855 	cap->nchar = Ctrl_H;
5856 	// FALLTHROUGH
5857     case 'h':
5858     case 'H':
5859     case Ctrl_H:
5860 # ifdef EBCDIC
5861 	// EBCDIC: 'v'-'h' != '^v'-'^h'
5862 	if (cap->nchar == Ctrl_H)
5863 	    cap->cmdchar = Ctrl_V;
5864 	else
5865 # endif
5866 	cap->cmdchar = cap->nchar + ('v' - 'h');
5867 	cap->arg = TRUE;
5868 	nv_visual(cap);
5869 	break;
5870 
5871     // "gn", "gN" visually select next/previous search match
5872     // "gn" selects next match
5873     // "gN" selects previous match
5874     case 'N':
5875     case 'n':
5876 	if (!current_search(cap->count1, cap->nchar == 'n'))
5877 	    clearopbeep(oap);
5878 	break;
5879 
5880     /*
5881      * "gj" and "gk" two new funny movement keys -- up and down
5882      * movement based on *screen* line rather than *file* line.
5883      */
5884     case 'j':
5885     case K_DOWN:
5886 	// with 'nowrap' it works just like the normal "j" command; also when
5887 	// in a closed fold
5888 	if (!curwin->w_p_wrap
5889 #ifdef FEAT_FOLDING
5890 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
5891 #endif
5892 		)
5893 	{
5894 	    oap->motion_type = MLINE;
5895 	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
5896 	}
5897 	else
5898 	    i = nv_screengo(oap, FORWARD, cap->count1);
5899 	if (i == FAIL)
5900 	    clearopbeep(oap);
5901 	break;
5902 
5903     case 'k':
5904     case K_UP:
5905 	// with 'nowrap' it works just like the normal "k" command; also when
5906 	// in a closed fold
5907 	if (!curwin->w_p_wrap
5908 #ifdef FEAT_FOLDING
5909 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
5910 #endif
5911 	   )
5912 	{
5913 	    oap->motion_type = MLINE;
5914 	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
5915 	}
5916 	else
5917 	    i = nv_screengo(oap, BACKWARD, cap->count1);
5918 	if (i == FAIL)
5919 	    clearopbeep(oap);
5920 	break;
5921 
5922     /*
5923      * "gJ": join two lines without inserting a space.
5924      */
5925     case 'J':
5926 	nv_join(cap);
5927 	break;
5928 
5929     /*
5930      * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
5931      * "gm": middle of "g0" and "g$".
5932      */
5933     case '^':
5934 	flag = TRUE;
5935 	// FALLTHROUGH
5936 
5937     case '0':
5938     case 'm':
5939     case K_HOME:
5940     case K_KHOME:
5941 	oap->motion_type = MCHAR;
5942 	oap->inclusive = FALSE;
5943 	if (curwin->w_p_wrap && curwin->w_width != 0)
5944 	{
5945 	    int		width1 = curwin->w_width - curwin_col_off();
5946 	    int		width2 = width1 + curwin_col_off2();
5947 
5948 	    validate_virtcol();
5949 	    i = 0;
5950 	    if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
5951 		i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
5952 	}
5953 	else
5954 	    i = curwin->w_leftcol;
5955 	// Go to the middle of the screen line.  When 'number' or
5956 	// 'relativenumber' is on and lines are wrapping the middle can be more
5957 	// to the left.
5958 	if (cap->nchar == 'm')
5959 	    i += (curwin->w_width - curwin_col_off()
5960 		    + ((curwin->w_p_wrap && i > 0)
5961 			? curwin_col_off2() : 0)) / 2;
5962 	coladvance((colnr_T)i);
5963 	if (flag)
5964 	{
5965 	    do
5966 		i = gchar_cursor();
5967 	    while (VIM_ISWHITE(i) && oneright() == OK);
5968 	    curwin->w_valid &= ~VALID_WCOL;
5969 	}
5970 	curwin->w_set_curswant = TRUE;
5971 	break;
5972 
5973     case 'M':
5974 	{
5975 	    char_u  *ptr = ml_get_curline();
5976 
5977 	    oap->motion_type = MCHAR;
5978 	    oap->inclusive = FALSE;
5979 	    if (has_mbyte)
5980 		i = mb_string2cells(ptr, (int)STRLEN(ptr));
5981 	    else
5982 		i = (int)STRLEN(ptr);
5983 	    if (cap->count0 > 0 && cap->count0 <= 100)
5984 		coladvance((colnr_T)(i * cap->count0 / 100));
5985 	    else
5986 		coladvance((colnr_T)(i / 2));
5987 	    curwin->w_set_curswant = TRUE;
5988 	}
5989 	break;
5990 
5991     case '_':
5992 	// "g_": to the last non-blank character in the line or <count> lines
5993 	// downward.
5994 	cap->oap->motion_type = MCHAR;
5995 	cap->oap->inclusive = TRUE;
5996 	curwin->w_curswant = MAXCOL;
5997 	if (cursor_down((long)(cap->count1 - 1),
5998 					 cap->oap->op_type == OP_NOP) == FAIL)
5999 	    clearopbeep(cap->oap);
6000 	else
6001 	{
6002 	    char_u  *ptr = ml_get_curline();
6003 
6004 	    // In Visual mode we may end up after the line.
6005 	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
6006 		--curwin->w_cursor.col;
6007 
6008 	    // Decrease the cursor column until it's on a non-blank.
6009 	    while (curwin->w_cursor.col > 0
6010 				    && VIM_ISWHITE(ptr[curwin->w_cursor.col]))
6011 		--curwin->w_cursor.col;
6012 	    curwin->w_set_curswant = TRUE;
6013 	    adjust_for_sel(cap);
6014 	}
6015 	break;
6016 
6017     case '$':
6018     case K_END:
6019     case K_KEND:
6020 	{
6021 	    int col_off = curwin_col_off();
6022 
6023 	    oap->motion_type = MCHAR;
6024 	    oap->inclusive = TRUE;
6025 	    if (curwin->w_p_wrap && curwin->w_width != 0)
6026 	    {
6027 		curwin->w_curswant = MAXCOL;    // so we stay at the end
6028 		if (cap->count1 == 1)
6029 		{
6030 		    int		width1 = curwin->w_width - col_off;
6031 		    int		width2 = width1 + curwin_col_off2();
6032 
6033 		    validate_virtcol();
6034 		    i = width1 - 1;
6035 		    if (curwin->w_virtcol >= (colnr_T)width1)
6036 			i += ((curwin->w_virtcol - width1) / width2 + 1)
6037 								     * width2;
6038 		    coladvance((colnr_T)i);
6039 
6040 		    // Make sure we stick in this column.
6041 		    validate_virtcol();
6042 		    curwin->w_curswant = curwin->w_virtcol;
6043 		    curwin->w_set_curswant = FALSE;
6044 		    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
6045 		    {
6046 			/*
6047 			 * Check for landing on a character that got split at
6048 			 * the end of the line.  We do not want to advance to
6049 			 * the next screen line.
6050 			 */
6051 			if (curwin->w_virtcol > (colnr_T)i)
6052 			    --curwin->w_cursor.col;
6053 		    }
6054 		}
6055 		else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
6056 		    clearopbeep(oap);
6057 	    }
6058 	    else
6059 	    {
6060 		if (cap->count1 > 1)
6061 		    // if it fails, let the cursor still move to the last char
6062 		    (void)cursor_down(cap->count1 - 1, FALSE);
6063 
6064 		i = curwin->w_leftcol + curwin->w_width - col_off - 1;
6065 		coladvance((colnr_T)i);
6066 
6067 		// Make sure we stick in this column.
6068 		validate_virtcol();
6069 		curwin->w_curswant = curwin->w_virtcol;
6070 		curwin->w_set_curswant = FALSE;
6071 	    }
6072 	}
6073 	break;
6074 
6075     /*
6076      * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
6077      */
6078     case '*':
6079     case '#':
6080 #if POUND != '#'
6081     case POUND:		// pound sign (sometimes equal to '#')
6082 #endif
6083     case Ctrl_RSB:		// :tag or :tselect for current identifier
6084     case ']':			// :tselect for current identifier
6085 	nv_ident(cap);
6086 	break;
6087 
6088     /*
6089      * ge and gE: go back to end of word
6090      */
6091     case 'e':
6092     case 'E':
6093 	oap->motion_type = MCHAR;
6094 	curwin->w_set_curswant = TRUE;
6095 	oap->inclusive = TRUE;
6096 	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
6097 	    clearopbeep(oap);
6098 	break;
6099 
6100     /*
6101      * "g CTRL-G": display info about cursor position
6102      */
6103     case Ctrl_G:
6104 	cursor_pos_info(NULL);
6105 	break;
6106 
6107     /*
6108      * "gi": start Insert at the last position.
6109      */
6110     case 'i':
6111 	if (curbuf->b_last_insert.lnum != 0)
6112 	{
6113 	    curwin->w_cursor = curbuf->b_last_insert;
6114 	    check_cursor_lnum();
6115 	    i = (int)STRLEN(ml_get_curline());
6116 	    if (curwin->w_cursor.col > (colnr_T)i)
6117 	    {
6118 		if (virtual_active())
6119 		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
6120 		curwin->w_cursor.col = i;
6121 	    }
6122 	}
6123 	cap->cmdchar = 'i';
6124 	nv_edit(cap);
6125 	break;
6126 
6127     /*
6128      * "gI": Start insert in column 1.
6129      */
6130     case 'I':
6131 	beginline(0);
6132 	if (!checkclearopq(oap))
6133 	    invoke_edit(cap, FALSE, 'g', FALSE);
6134 	break;
6135 
6136 #ifdef FEAT_SEARCHPATH
6137     /*
6138      * "gf": goto file, edit file under cursor
6139      * "]f" and "[f": can also be used.
6140      */
6141     case 'f':
6142     case 'F':
6143 	nv_gotofile(cap);
6144 	break;
6145 #endif
6146 
6147 	// "g'm" and "g`m": jump to mark without setting pcmark
6148     case '\'':
6149 	cap->arg = TRUE;
6150 	// FALLTHROUGH
6151     case '`':
6152 	nv_gomark(cap);
6153 	break;
6154 
6155     /*
6156      * "gs": Goto sleep.
6157      */
6158     case 's':
6159 	do_sleep(cap->count1 * 1000L);
6160 	break;
6161 
6162     /*
6163      * "ga": Display the ascii value of the character under the
6164      * cursor.	It is displayed in decimal, hex, and octal. -- webb
6165      */
6166     case 'a':
6167 	do_ascii(NULL);
6168 	break;
6169 
6170     /*
6171      * "g8": Display the bytes used for the UTF-8 character under the
6172      * cursor.	It is displayed in hex.
6173      * "8g8" finds illegal byte sequence.
6174      */
6175     case '8':
6176 	if (cap->count0 == 8)
6177 	    utf_find_illegal();
6178 	else
6179 	    show_utf8();
6180 	break;
6181 
6182     // "g<": show scrollback text
6183     case '<':
6184 	show_sb_text();
6185 	break;
6186 
6187     /*
6188      * "gg": Goto the first line in file.  With a count it goes to
6189      * that line number like for "G". -- webb
6190      */
6191     case 'g':
6192 	cap->arg = FALSE;
6193 	nv_goto(cap);
6194 	break;
6195 
6196     /*
6197      *	 Two-character operators:
6198      *	 "gq"	    Format text
6199      *	 "gw"	    Format text and keep cursor position
6200      *	 "g~"	    Toggle the case of the text.
6201      *	 "gu"	    Change text to lower case.
6202      *	 "gU"	    Change text to upper case.
6203      *   "g?"	    rot13 encoding
6204      *   "g@"	    call 'operatorfunc'
6205      */
6206     case 'q':
6207     case 'w':
6208 	oap->cursor_start = curwin->w_cursor;
6209 	// FALLTHROUGH
6210     case '~':
6211     case 'u':
6212     case 'U':
6213     case '?':
6214     case '@':
6215 	nv_operator(cap);
6216 	break;
6217 
6218     /*
6219      * "gd": Find first occurrence of pattern under the cursor in the
6220      *	 current function
6221      * "gD": idem, but in the current file.
6222      */
6223     case 'd':
6224     case 'D':
6225 	nv_gd(oap, cap->nchar, (int)cap->count0);
6226 	break;
6227 
6228     /*
6229      * g<*Mouse> : <C-*mouse>
6230      */
6231     case K_MIDDLEMOUSE:
6232     case K_MIDDLEDRAG:
6233     case K_MIDDLERELEASE:
6234     case K_LEFTMOUSE:
6235     case K_LEFTDRAG:
6236     case K_LEFTRELEASE:
6237     case K_MOUSEMOVE:
6238     case K_RIGHTMOUSE:
6239     case K_RIGHTDRAG:
6240     case K_RIGHTRELEASE:
6241     case K_X1MOUSE:
6242     case K_X1DRAG:
6243     case K_X1RELEASE:
6244     case K_X2MOUSE:
6245     case K_X2DRAG:
6246     case K_X2RELEASE:
6247 	mod_mask = MOD_MASK_CTRL;
6248 	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
6249 	break;
6250 
6251     case K_IGNORE:
6252 	break;
6253 
6254     /*
6255      * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
6256      */
6257     case 'p':
6258     case 'P':
6259 	nv_put(cap);
6260 	break;
6261 
6262 #ifdef FEAT_BYTEOFF
6263     // "go": goto byte count from start of buffer
6264     case 'o':
6265 	goto_byte(cap->count0);
6266 	break;
6267 #endif
6268 
6269     // "gQ": improved Ex mode
6270     case 'Q':
6271 	if (text_locked())
6272 	{
6273 	    clearopbeep(cap->oap);
6274 	    text_locked_msg();
6275 	    break;
6276 	}
6277 
6278 	if (!checkclearopq(oap))
6279 	    do_exmode(TRUE);
6280 	break;
6281 
6282 #ifdef FEAT_JUMPLIST
6283     case ',':
6284 	nv_pcmark(cap);
6285 	break;
6286 
6287     case ';':
6288 	cap->count1 = -cap->count1;
6289 	nv_pcmark(cap);
6290 	break;
6291 #endif
6292 
6293     case 't':
6294 	if (!checkclearop(oap))
6295 	    goto_tabpage((int)cap->count0);
6296 	break;
6297     case 'T':
6298 	if (!checkclearop(oap))
6299 	    goto_tabpage(-(int)cap->count1);
6300 	break;
6301 
6302     case '+':
6303     case '-': // "g+" and "g-": undo or redo along the timeline
6304 	if (!checkclearopq(oap))
6305 	    undo_time(cap->nchar == '-' ? -cap->count1 : cap->count1,
6306 							 FALSE, FALSE, FALSE);
6307 	break;
6308 
6309     default:
6310 	clearopbeep(oap);
6311 	break;
6312     }
6313 }
6314 
6315 /*
6316  * Handle "o" and "O" commands.
6317  */
6318     static void
6319 n_opencmd(cmdarg_T *cap)
6320 {
6321 #ifdef FEAT_CONCEAL
6322     linenr_T	oldline = curwin->w_cursor.lnum;
6323 #endif
6324 
6325     if (!checkclearopq(cap->oap))
6326     {
6327 #ifdef FEAT_FOLDING
6328 	if (cap->cmdchar == 'O')
6329 	    // Open above the first line of a folded sequence of lines
6330 	    (void)hasFolding(curwin->w_cursor.lnum,
6331 						&curwin->w_cursor.lnum, NULL);
6332 	else
6333 	    // Open below the last line of a folded sequence of lines
6334 	    (void)hasFolding(curwin->w_cursor.lnum,
6335 						NULL, &curwin->w_cursor.lnum);
6336 #endif
6337 	if (u_save((linenr_T)(curwin->w_cursor.lnum -
6338 					       (cap->cmdchar == 'O' ? 1 : 0)),
6339 		   (linenr_T)(curwin->w_cursor.lnum +
6340 					       (cap->cmdchar == 'o' ? 1 : 0))
6341 		       ) == OK
6342 		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
6343 			 has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM : 0,
6344 								      0) == OK)
6345 	{
6346 #ifdef FEAT_CONCEAL
6347 	    if (curwin->w_p_cole > 0 && oldline != curwin->w_cursor.lnum)
6348 		redrawWinline(curwin, oldline);
6349 #endif
6350 #ifdef FEAT_SYN_HL
6351 	    if (curwin->w_p_cul)
6352 		// force redraw of cursorline
6353 		curwin->w_valid &= ~VALID_CROW;
6354 #endif
6355 	    // When '#' is in 'cpoptions' ignore the count.
6356 	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
6357 		cap->count1 = 1;
6358 	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
6359 	}
6360     }
6361 }
6362 
6363 /*
6364  * "." command: redo last change.
6365  */
6366     static void
6367 nv_dot(cmdarg_T *cap)
6368 {
6369     if (!checkclearopq(cap->oap))
6370     {
6371 	/*
6372 	 * If "restart_edit" is TRUE, the last but one command is repeated
6373 	 * instead of the last command (inserting text). This is used for
6374 	 * CTRL-O <.> in insert mode.
6375 	 */
6376 	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
6377 	    clearopbeep(cap->oap);
6378     }
6379 }
6380 
6381 /*
6382  * CTRL-R: undo undo
6383  */
6384     static void
6385 nv_redo(cmdarg_T *cap)
6386 {
6387     if (!checkclearopq(cap->oap))
6388     {
6389 	u_redo((int)cap->count1);
6390 	curwin->w_set_curswant = TRUE;
6391     }
6392 }
6393 
6394 /*
6395  * Handle "U" command.
6396  */
6397     static void
6398 nv_Undo(cmdarg_T *cap)
6399 {
6400     // In Visual mode and typing "gUU" triggers an operator
6401     if (cap->oap->op_type == OP_UPPER || VIsual_active)
6402     {
6403 	// translate "gUU" to "gUgU"
6404 	cap->cmdchar = 'g';
6405 	cap->nchar = 'U';
6406 	nv_operator(cap);
6407     }
6408     else if (!checkclearopq(cap->oap))
6409     {
6410 	u_undoline();
6411 	curwin->w_set_curswant = TRUE;
6412     }
6413 }
6414 
6415 /*
6416  * '~' command: If tilde is not an operator and Visual is off: swap case of a
6417  * single character.
6418  */
6419     static void
6420 nv_tilde(cmdarg_T *cap)
6421 {
6422     if (!p_to && !VIsual_active && cap->oap->op_type != OP_TILDE)
6423     {
6424 #ifdef FEAT_JOB_CHANNEL
6425 	if (bt_prompt(curbuf) && !prompt_curpos_editable())
6426 	{
6427 	    clearopbeep(cap->oap);
6428 	    return;
6429 	}
6430 #endif
6431 	n_swapchar(cap);
6432     }
6433     else
6434 	nv_operator(cap);
6435 }
6436 
6437 /*
6438  * Handle an operator command.
6439  * The actual work is done by do_pending_operator().
6440  */
6441     static void
6442 nv_operator(cmdarg_T *cap)
6443 {
6444     int	    op_type;
6445 
6446     op_type = get_op_type(cap->cmdchar, cap->nchar);
6447 #ifdef FEAT_JOB_CHANNEL
6448     if (bt_prompt(curbuf) && op_is_change(op_type) && !prompt_curpos_editable())
6449     {
6450 	clearopbeep(cap->oap);
6451 	return;
6452     }
6453 #endif
6454 
6455     if (op_type == cap->oap->op_type)	    // double operator works on lines
6456 	nv_lineop(cap);
6457     else if (!checkclearop(cap->oap))
6458     {
6459 	cap->oap->start = curwin->w_cursor;
6460 	cap->oap->op_type = op_type;
6461 #ifdef FEAT_EVAL
6462 	set_op_var(op_type);
6463 #endif
6464     }
6465 }
6466 
6467 #ifdef FEAT_EVAL
6468 /*
6469  * Set v:operator to the characters for "optype".
6470  */
6471     static void
6472 set_op_var(int optype)
6473 {
6474     char_u	opchars[3];
6475 
6476     if (optype == OP_NOP)
6477 	set_vim_var_string(VV_OP, NULL, 0);
6478     else
6479     {
6480 	opchars[0] = get_op_char(optype);
6481 	opchars[1] = get_extra_op_char(optype);
6482 	opchars[2] = NUL;
6483 	set_vim_var_string(VV_OP, opchars, -1);
6484     }
6485 }
6486 #endif
6487 
6488 /*
6489  * Handle linewise operator "dd", "yy", etc.
6490  *
6491  * "_" is is a strange motion command that helps make operators more logical.
6492  * It is actually implemented, but not documented in the real Vi.  This motion
6493  * command actually refers to "the current line".  Commands like "dd" and "yy"
6494  * are really an alternate form of "d_" and "y_".  It does accept a count, so
6495  * "d3_" works to delete 3 lines.
6496  */
6497     static void
6498 nv_lineop(cmdarg_T *cap)
6499 {
6500     cap->oap->motion_type = MLINE;
6501     if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
6502 	clearopbeep(cap->oap);
6503     else if (  (cap->oap->op_type == OP_DELETE // only with linewise motions
6504 		&& cap->oap->motion_force != 'v'
6505 		&& cap->oap->motion_force != Ctrl_V)
6506 	    || cap->oap->op_type == OP_LSHIFT
6507 	    || cap->oap->op_type == OP_RSHIFT)
6508 	beginline(BL_SOL | BL_FIX);
6509     else if (cap->oap->op_type != OP_YANK)	// 'Y' does not move cursor
6510 	beginline(BL_WHITE | BL_FIX);
6511 }
6512 
6513 /*
6514  * <Home> command.
6515  */
6516     static void
6517 nv_home(cmdarg_T *cap)
6518 {
6519     // CTRL-HOME is like "gg"
6520     if (mod_mask & MOD_MASK_CTRL)
6521 	nv_goto(cap);
6522     else
6523     {
6524 	cap->count0 = 1;
6525 	nv_pipe(cap);
6526     }
6527     ins_at_eol = FALSE;	    // Don't move cursor past eol (only necessary in a
6528 			    // one-character line).
6529 }
6530 
6531 /*
6532  * "|" command.
6533  */
6534     static void
6535 nv_pipe(cmdarg_T *cap)
6536 {
6537     cap->oap->motion_type = MCHAR;
6538     cap->oap->inclusive = FALSE;
6539     beginline(0);
6540     if (cap->count0 > 0)
6541     {
6542 	coladvance((colnr_T)(cap->count0 - 1));
6543 	curwin->w_curswant = (colnr_T)(cap->count0 - 1);
6544     }
6545     else
6546 	curwin->w_curswant = 0;
6547     // keep curswant at the column where we wanted to go, not where
6548     // we ended; differs if line is too short
6549     curwin->w_set_curswant = FALSE;
6550 }
6551 
6552 /*
6553  * Handle back-word command "b" and "B".
6554  * cap->arg is 1 for "B"
6555  */
6556     static void
6557 nv_bck_word(cmdarg_T *cap)
6558 {
6559     cap->oap->motion_type = MCHAR;
6560     cap->oap->inclusive = FALSE;
6561     curwin->w_set_curswant = TRUE;
6562     if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
6563 	clearopbeep(cap->oap);
6564 #ifdef FEAT_FOLDING
6565     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6566 	foldOpenCursor();
6567 #endif
6568 }
6569 
6570 /*
6571  * Handle word motion commands "e", "E", "w" and "W".
6572  * cap->arg is TRUE for "E" and "W".
6573  */
6574     static void
6575 nv_wordcmd(cmdarg_T *cap)
6576 {
6577     int		n;
6578     int		word_end;
6579     int		flag = FALSE;
6580     pos_T	startpos = curwin->w_cursor;
6581 
6582     /*
6583      * Set inclusive for the "E" and "e" command.
6584      */
6585     if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
6586 	word_end = TRUE;
6587     else
6588 	word_end = FALSE;
6589     cap->oap->inclusive = word_end;
6590 
6591     /*
6592      * "cw" and "cW" are a special case.
6593      */
6594     if (!word_end && cap->oap->op_type == OP_CHANGE)
6595     {
6596 	n = gchar_cursor();
6597 	if (n != NUL)			// not an empty line
6598 	{
6599 	    if (VIM_ISWHITE(n))
6600 	    {
6601 		/*
6602 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
6603 		 * changes one character, not all blanks until the start of
6604 		 * the next word.  Only do this when the 'w' flag is included
6605 		 * in 'cpoptions'.
6606 		 */
6607 		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
6608 		{
6609 		    cap->oap->inclusive = TRUE;
6610 		    cap->oap->motion_type = MCHAR;
6611 		    return;
6612 		}
6613 	    }
6614 	    else
6615 	    {
6616 		/*
6617 		 * This is a little strange. To match what the real Vi does,
6618 		 * we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
6619 		 * that we are not on a space or a TAB.  This seems impolite
6620 		 * at first, but it's really more what we mean when we say
6621 		 * 'cw'.
6622 		 * Another strangeness: When standing on the end of a word
6623 		 * "ce" will change until the end of the next word, but "cw"
6624 		 * will change only one character! This is done by setting
6625 		 * flag.
6626 		 */
6627 		cap->oap->inclusive = TRUE;
6628 		word_end = TRUE;
6629 		flag = TRUE;
6630 	    }
6631 	}
6632     }
6633 
6634     cap->oap->motion_type = MCHAR;
6635     curwin->w_set_curswant = TRUE;
6636     if (word_end)
6637 	n = end_word(cap->count1, cap->arg, flag, FALSE);
6638     else
6639 	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
6640 
6641     // Don't leave the cursor on the NUL past the end of line. Unless we
6642     // didn't move it forward.
6643     if (LT_POS(startpos, curwin->w_cursor))
6644 	adjust_cursor(cap->oap);
6645 
6646     if (n == FAIL && cap->oap->op_type == OP_NOP)
6647 	clearopbeep(cap->oap);
6648     else
6649     {
6650 	adjust_for_sel(cap);
6651 #ifdef FEAT_FOLDING
6652 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6653 	    foldOpenCursor();
6654 #endif
6655     }
6656 }
6657 
6658 /*
6659  * Used after a movement command: If the cursor ends up on the NUL after the
6660  * end of the line, may move it back to the last character and make the motion
6661  * inclusive.
6662  */
6663     static void
6664 adjust_cursor(oparg_T *oap)
6665 {
6666     // The cursor cannot remain on the NUL when:
6667     // - the column is > 0
6668     // - not in Visual mode or 'selection' is "o"
6669     // - 'virtualedit' is not "all" and not "onemore".
6670     if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL
6671 		&& (!VIsual_active || *p_sel == 'o')
6672 		&& !virtual_active() && (ve_flags & VE_ONEMORE) == 0)
6673     {
6674 	--curwin->w_cursor.col;
6675 	// prevent cursor from moving on the trail byte
6676 	if (has_mbyte)
6677 	    mb_adjust_cursor();
6678 	oap->inclusive = TRUE;
6679     }
6680 }
6681 
6682 /*
6683  * "0" and "^" commands.
6684  * cap->arg is the argument for beginline().
6685  */
6686     static void
6687 nv_beginline(cmdarg_T *cap)
6688 {
6689     cap->oap->motion_type = MCHAR;
6690     cap->oap->inclusive = FALSE;
6691     beginline(cap->arg);
6692 #ifdef FEAT_FOLDING
6693     if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6694 	foldOpenCursor();
6695 #endif
6696     ins_at_eol = FALSE;	    // Don't move cursor past eol (only necessary in a
6697 			    // one-character line).
6698 }
6699 
6700 /*
6701  * In exclusive Visual mode, may include the last character.
6702  */
6703     static void
6704 adjust_for_sel(cmdarg_T *cap)
6705 {
6706     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
6707 	    && gchar_cursor() != NUL && LT_POS(VIsual, curwin->w_cursor))
6708     {
6709 	if (has_mbyte)
6710 	    inc_cursor();
6711 	else
6712 	    ++curwin->w_cursor.col;
6713 	cap->oap->inclusive = FALSE;
6714     }
6715 }
6716 
6717 /*
6718  * Exclude last character at end of Visual area for 'selection' == "exclusive".
6719  * Should check VIsual_mode before calling this.
6720  * Returns TRUE when backed up to the previous line.
6721  */
6722     int
6723 unadjust_for_sel(void)
6724 {
6725     pos_T	*pp;
6726 
6727     if (*p_sel == 'e' && !EQUAL_POS(VIsual, curwin->w_cursor))
6728     {
6729 	if (LT_POS(VIsual, curwin->w_cursor))
6730 	    pp = &curwin->w_cursor;
6731 	else
6732 	    pp = &VIsual;
6733 	if (pp->coladd > 0)
6734 	    --pp->coladd;
6735 	else
6736 	if (pp->col > 0)
6737 	{
6738 	    --pp->col;
6739 	    mb_adjustpos(curbuf, pp);
6740 	}
6741 	else if (pp->lnum > 1)
6742 	{
6743 	    --pp->lnum;
6744 	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
6745 	    return TRUE;
6746 	}
6747     }
6748     return FALSE;
6749 }
6750 
6751 /*
6752  * SELECT key in Normal or Visual mode: end of Select mode mapping.
6753  */
6754     static void
6755 nv_select(cmdarg_T *cap)
6756 {
6757     if (VIsual_active)
6758 	VIsual_select = TRUE;
6759     else if (VIsual_reselect)
6760     {
6761 	cap->nchar = 'v';	    // fake "gv" command
6762 	cap->arg = TRUE;
6763 	nv_g_cmd(cap);
6764     }
6765 }
6766 
6767 
6768 /*
6769  * "G", "gg", CTRL-END, CTRL-HOME.
6770  * cap->arg is TRUE for "G".
6771  */
6772     static void
6773 nv_goto(cmdarg_T *cap)
6774 {
6775     linenr_T	lnum;
6776 
6777     if (cap->arg)
6778 	lnum = curbuf->b_ml.ml_line_count;
6779     else
6780 	lnum = 1L;
6781     cap->oap->motion_type = MLINE;
6782     setpcmark();
6783 
6784     // When a count is given, use it instead of the default lnum
6785     if (cap->count0 != 0)
6786 	lnum = cap->count0;
6787     if (lnum < 1L)
6788 	lnum = 1L;
6789     else if (lnum > curbuf->b_ml.ml_line_count)
6790 	lnum = curbuf->b_ml.ml_line_count;
6791     curwin->w_cursor.lnum = lnum;
6792     beginline(BL_SOL | BL_FIX);
6793 #ifdef FEAT_FOLDING
6794     if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP)
6795 	foldOpenCursor();
6796 #endif
6797 }
6798 
6799 /*
6800  * CTRL-\ in Normal mode.
6801  */
6802     static void
6803 nv_normal(cmdarg_T *cap)
6804 {
6805     if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G)
6806     {
6807 	clearop(cap->oap);
6808 	if (restart_edit != 0 && mode_displayed)
6809 	    clear_cmdline = TRUE;		// unshow mode later
6810 	restart_edit = 0;
6811 #ifdef FEAT_CMDWIN
6812 	if (cmdwin_type != 0)
6813 	    cmdwin_result = Ctrl_C;
6814 #endif
6815 	if (VIsual_active)
6816 	{
6817 	    end_visual_mode();		// stop Visual
6818 	    redraw_curbuf_later(INVERTED);
6819 	}
6820 	// CTRL-\ CTRL-G restarts Insert mode when 'insertmode' is set.
6821 	if (cap->nchar == Ctrl_G && p_im)
6822 	    restart_edit = 'a';
6823     }
6824     else
6825 	clearopbeep(cap->oap);
6826 }
6827 
6828 /*
6829  * ESC in Normal mode: beep, but don't flush buffers.
6830  * Don't even beep if we are canceling a command.
6831  */
6832     static void
6833 nv_esc(cmdarg_T *cap)
6834 {
6835     int		no_reason;
6836 
6837     no_reason = (cap->oap->op_type == OP_NOP
6838 		&& cap->opcount == 0
6839 		&& cap->count0 == 0
6840 		&& cap->oap->regname == 0
6841 		&& !p_im);
6842 
6843     if (cap->arg)		// TRUE for CTRL-C
6844     {
6845 	if (restart_edit == 0
6846 #ifdef FEAT_CMDWIN
6847 		&& cmdwin_type == 0
6848 #endif
6849 		&& !VIsual_active
6850 		&& no_reason)
6851 	{
6852 	    if (anyBufIsChanged())
6853 		msg(_("Type  :qa!  and press <Enter> to abandon all changes and exit Vim"));
6854 	    else
6855 		msg(_("Type  :qa  and press <Enter> to exit Vim"));
6856 	}
6857 
6858 	// Don't reset "restart_edit" when 'insertmode' is set, it won't be
6859 	// set again below when halfway a mapping.
6860 	if (!p_im)
6861 	    restart_edit = 0;
6862 #ifdef FEAT_CMDWIN
6863 	if (cmdwin_type != 0)
6864 	{
6865 	    cmdwin_result = K_IGNORE;
6866 	    got_int = FALSE;	// don't stop executing autocommands et al.
6867 	    return;
6868 	}
6869 #endif
6870     }
6871 
6872     if (VIsual_active)
6873     {
6874 	end_visual_mode();	// stop Visual
6875 	check_cursor_col();	// make sure cursor is not beyond EOL
6876 	curwin->w_set_curswant = TRUE;
6877 	redraw_curbuf_later(INVERTED);
6878     }
6879     else if (no_reason)
6880 	vim_beep(BO_ESC);
6881     clearop(cap->oap);
6882 
6883     // A CTRL-C is often used at the start of a menu.  When 'insertmode' is
6884     // set return to Insert mode afterwards.
6885     if (restart_edit == 0 && goto_im() && ex_normal_busy == 0)
6886 	restart_edit = 'a';
6887 }
6888 
6889 /*
6890  * Move the cursor for the "A" command.
6891  */
6892     void
6893 set_cursor_for_append_to_line(void)
6894 {
6895     curwin->w_set_curswant = TRUE;
6896     if (ve_flags == VE_ALL)
6897     {
6898 	int save_State = State;
6899 
6900 	// Pretend Insert mode here to allow the cursor on the
6901 	// character past the end of the line
6902 	State = INSERT;
6903 	coladvance((colnr_T)MAXCOL);
6904 	State = save_State;
6905     }
6906     else
6907 	curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
6908 }
6909 
6910 /*
6911  * Handle "A", "a", "I", "i" and <Insert> commands.
6912  * Also handle K_PS, start bracketed paste.
6913  */
6914     static void
6915 nv_edit(cmdarg_T *cap)
6916 {
6917     // <Insert> is equal to "i"
6918     if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
6919 	cap->cmdchar = 'i';
6920 
6921     // in Visual mode "A" and "I" are an operator
6922     if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
6923     {
6924 #ifdef FEAT_TERMINAL
6925 	if (term_in_normal_mode())
6926 	{
6927 	    end_visual_mode();
6928 	    clearop(cap->oap);
6929 	    term_enter_job_mode();
6930 	    return;
6931 	}
6932 #endif
6933 	v_visop(cap);
6934     }
6935 
6936     // in Visual mode and after an operator "a" and "i" are for text objects
6937     else if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
6938 	    && (cap->oap->op_type != OP_NOP || VIsual_active))
6939     {
6940 #ifdef FEAT_TEXTOBJ
6941 	nv_object(cap);
6942 #else
6943 	clearopbeep(cap->oap);
6944 #endif
6945     }
6946 #ifdef FEAT_TERMINAL
6947     else if (term_in_normal_mode())
6948     {
6949 	clearop(cap->oap);
6950 	term_enter_job_mode();
6951 	return;
6952     }
6953 #endif
6954     else if (!curbuf->b_p_ma && !p_im)
6955     {
6956 	// Only give this error when 'insertmode' is off.
6957 	emsg(_(e_modifiable));
6958 	clearop(cap->oap);
6959 	if (cap->cmdchar == K_PS)
6960 	    // drop the pasted text
6961 	    bracketed_paste(PASTE_INSERT, TRUE, NULL);
6962     }
6963     else if (cap->cmdchar == K_PS && VIsual_active)
6964     {
6965 	pos_T old_pos = curwin->w_cursor;
6966 	pos_T old_visual = VIsual;
6967 
6968 	// In Visual mode the selected text is deleted.
6969 	if (VIsual_mode == 'V' || curwin->w_cursor.lnum != VIsual.lnum)
6970 	{
6971 	    shift_delete_registers();
6972 	    cap->oap->regname = '1';
6973 	}
6974 	else
6975 	    cap->oap->regname = '-';
6976 	cap->cmdchar = 'd';
6977 	cap->nchar = NUL;
6978 	nv_operator(cap);
6979 	do_pending_operator(cap, 0, FALSE);
6980 	cap->cmdchar = K_PS;
6981 
6982 	// When the last char in the line was deleted then append. Detect this
6983 	// by checking if the cursor moved to before the Visual area.
6984 	if (*ml_get_cursor() != NUL && LT_POS(curwin->w_cursor, old_pos)
6985 				       && LT_POS(curwin->w_cursor, old_visual))
6986 	    inc_cursor();
6987 
6988 	// Insert to replace the deleted text with the pasted text.
6989 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
6990     }
6991     else if (!checkclearopq(cap->oap))
6992     {
6993 	switch (cap->cmdchar)
6994 	{
6995 	    case 'A':	// "A"ppend after the line
6996 		set_cursor_for_append_to_line();
6997 		break;
6998 
6999 	    case 'I':	// "I"nsert before the first non-blank
7000 		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
7001 		    beginline(BL_WHITE);
7002 		else
7003 		    beginline(BL_WHITE|BL_FIX);
7004 		break;
7005 
7006 	    case K_PS:
7007 		// Bracketed paste works like "a"ppend, unless the cursor is in
7008 		// the first column, then it inserts.
7009 		if (curwin->w_cursor.col == 0)
7010 		    break;
7011 		// FALLTHROUGH
7012 
7013 	    case 'a':	// "a"ppend is like "i"nsert on the next character.
7014 		// increment coladd when in virtual space, increment the
7015 		// column otherwise, also to append after an unprintable char
7016 		if (virtual_active()
7017 			&& (curwin->w_cursor.coladd > 0
7018 			    || *ml_get_cursor() == NUL
7019 			    || *ml_get_cursor() == TAB))
7020 		    curwin->w_cursor.coladd++;
7021 		else if (*ml_get_cursor() != NUL)
7022 		    inc_cursor();
7023 		break;
7024 	}
7025 
7026 	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
7027 	{
7028 	    int save_State = State;
7029 
7030 	    // Pretend Insert mode here to allow the cursor on the
7031 	    // character past the end of the line
7032 	    State = INSERT;
7033 	    coladvance(getviscol());
7034 	    State = save_State;
7035 	}
7036 
7037 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
7038     }
7039     else if (cap->cmdchar == K_PS)
7040 	// drop the pasted text
7041 	bracketed_paste(PASTE_INSERT, TRUE, NULL);
7042 }
7043 
7044 /*
7045  * Invoke edit() and take care of "restart_edit" and the return value.
7046  */
7047     static void
7048 invoke_edit(
7049     cmdarg_T	*cap,
7050     int		repl,		// "r" or "gr" command
7051     int		cmd,
7052     int		startln)
7053 {
7054     int		restart_edit_save = 0;
7055 
7056     // Complicated: When the user types "a<C-O>a" we don't want to do Insert
7057     // mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
7058     // it.
7059     if (repl || !stuff_empty())
7060 	restart_edit_save = restart_edit;
7061     else
7062 	restart_edit_save = 0;
7063 
7064     // Always reset "restart_edit", this is not a restarted edit.
7065     restart_edit = 0;
7066 
7067     if (edit(cmd, startln, cap->count1))
7068 	cap->retval |= CA_COMMAND_BUSY;
7069 
7070     if (restart_edit == 0)
7071 	restart_edit = restart_edit_save;
7072 }
7073 
7074 #ifdef FEAT_TEXTOBJ
7075 /*
7076  * "a" or "i" while an operator is pending or in Visual mode: object motion.
7077  */
7078     static void
7079 nv_object(
7080     cmdarg_T	*cap)
7081 {
7082     int		flag;
7083     int		include;
7084     char_u	*mps_save;
7085 
7086     if (cap->cmdchar == 'i')
7087 	include = FALSE;    // "ix" = inner object: exclude white space
7088     else
7089 	include = TRUE;	    // "ax" = an object: include white space
7090 
7091     // Make sure (), [], {} and <> are in 'matchpairs'
7092     mps_save = curbuf->b_p_mps;
7093     curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";
7094 
7095     switch (cap->nchar)
7096     {
7097 	case 'w': // "aw" = a word
7098 		flag = current_word(cap->oap, cap->count1, include, FALSE);
7099 		break;
7100 	case 'W': // "aW" = a WORD
7101 		flag = current_word(cap->oap, cap->count1, include, TRUE);
7102 		break;
7103 	case 'b': // "ab" = a braces block
7104 	case '(':
7105 	case ')':
7106 		flag = current_block(cap->oap, cap->count1, include, '(', ')');
7107 		break;
7108 	case 'B': // "aB" = a Brackets block
7109 	case '{':
7110 	case '}':
7111 		flag = current_block(cap->oap, cap->count1, include, '{', '}');
7112 		break;
7113 	case '[': // "a[" = a [] block
7114 	case ']':
7115 		flag = current_block(cap->oap, cap->count1, include, '[', ']');
7116 		break;
7117 	case '<': // "a<" = a <> block
7118 	case '>':
7119 		flag = current_block(cap->oap, cap->count1, include, '<', '>');
7120 		break;
7121 	case 't': // "at" = a tag block (xml and html)
7122 		// Do not adjust oap->end in do_pending_operator()
7123 		// otherwise there are different results for 'dit'
7124 		// (note leading whitespace in last line):
7125 		// 1) <b>      2) <b>
7126 		//    foobar      foobar
7127 		//    </b>            </b>
7128 		cap->retval |= CA_NO_ADJ_OP_END;
7129 		flag = current_tagblock(cap->oap, cap->count1, include);
7130 		break;
7131 	case 'p': // "ap" = a paragraph
7132 		flag = current_par(cap->oap, cap->count1, include, 'p');
7133 		break;
7134 	case 's': // "as" = a sentence
7135 		flag = current_sent(cap->oap, cap->count1, include);
7136 		break;
7137 	case '"': // "a"" = a double quoted string
7138 	case '\'': // "a'" = a single quoted string
7139 	case '`': // "a`" = a backtick quoted string
7140 		flag = current_quote(cap->oap, cap->count1, include,
7141 								  cap->nchar);
7142 		break;
7143 #if 0	// TODO
7144 	case 'S': // "aS" = a section
7145 	case 'f': // "af" = a filename
7146 	case 'u': // "au" = a URL
7147 #endif
7148 	default:
7149 		flag = FAIL;
7150 		break;
7151     }
7152 
7153     curbuf->b_p_mps = mps_save;
7154     if (flag == FAIL)
7155 	clearopbeep(cap->oap);
7156     adjust_cursor_col();
7157     curwin->w_set_curswant = TRUE;
7158 }
7159 #endif
7160 
7161 /*
7162  * "q" command: Start/stop recording.
7163  * "q:", "q/", "q?": edit command-line in command-line window.
7164  */
7165     static void
7166 nv_record(cmdarg_T *cap)
7167 {
7168     if (cap->oap->op_type == OP_FORMAT)
7169     {
7170 	// "gqq" is the same as "gqgq": format line
7171 	cap->cmdchar = 'g';
7172 	cap->nchar = 'q';
7173 	nv_operator(cap);
7174     }
7175     else if (!checkclearop(cap->oap))
7176     {
7177 #ifdef FEAT_CMDWIN
7178 	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
7179 	{
7180 	    stuffcharReadbuff(cap->nchar);
7181 	    stuffcharReadbuff(K_CMDWIN);
7182 	}
7183 	else
7184 #endif
7185 	    // (stop) recording into a named register, unless executing a
7186 	    // register
7187 	    if (reg_executing == 0 && do_record(cap->nchar) == FAIL)
7188 		clearopbeep(cap->oap);
7189     }
7190 }
7191 
7192 /*
7193  * Handle the "@r" command.
7194  */
7195     static void
7196 nv_at(cmdarg_T *cap)
7197 {
7198     if (checkclearop(cap->oap))
7199 	return;
7200 #ifdef FEAT_EVAL
7201     if (cap->nchar == '=')
7202     {
7203 	if (get_expr_register() == NUL)
7204 	    return;
7205     }
7206 #endif
7207     while (cap->count1-- && !got_int)
7208     {
7209 	if (do_execreg(cap->nchar, FALSE, FALSE, FALSE) == FAIL)
7210 	{
7211 	    clearopbeep(cap->oap);
7212 	    break;
7213 	}
7214 	line_breakcheck();
7215     }
7216 }
7217 
7218 /*
7219  * Handle the CTRL-U and CTRL-D commands.
7220  */
7221     static void
7222 nv_halfpage(cmdarg_T *cap)
7223 {
7224     if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
7225 	    || (cap->cmdchar == Ctrl_D
7226 		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
7227 	clearopbeep(cap->oap);
7228     else if (!checkclearop(cap->oap))
7229 	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
7230 }
7231 
7232 /*
7233  * Handle "J" or "gJ" command.
7234  */
7235     static void
7236 nv_join(cmdarg_T *cap)
7237 {
7238     if (VIsual_active)	// join the visual lines
7239 	nv_operator(cap);
7240     else if (!checkclearop(cap->oap))
7241     {
7242 	if (cap->count0 <= 1)
7243 	    cap->count0 = 2;	    // default for join is two lines!
7244 	if (curwin->w_cursor.lnum + cap->count0 - 1 >
7245 						   curbuf->b_ml.ml_line_count)
7246 	{
7247 	    // can't join when on the last line
7248 	    if (cap->count0 <= 2)
7249 	    {
7250 		clearopbeep(cap->oap);
7251 		return;
7252 	    }
7253 	    cap->count0 = curbuf->b_ml.ml_line_count
7254 						  - curwin->w_cursor.lnum + 1;
7255 	}
7256 
7257 	prep_redo(cap->oap->regname, cap->count0,
7258 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
7259 	(void)do_join(cap->count0, cap->nchar == NUL, TRUE, TRUE, TRUE);
7260     }
7261 }
7262 
7263 /*
7264  * "P", "gP", "p" and "gp" commands.
7265  */
7266     static void
7267 nv_put(cmdarg_T *cap)
7268 {
7269     nv_put_opt(cap, FALSE);
7270 }
7271 
7272 /*
7273  * "P", "gP", "p" and "gp" commands.
7274  * "fix_indent" is TRUE for "[p", "[P", "]p" and "]P".
7275  */
7276     static void
7277 nv_put_opt(cmdarg_T *cap, int fix_indent)
7278 {
7279     int		regname = 0;
7280     void	*reg1 = NULL, *reg2 = NULL;
7281     int		empty = FALSE;
7282     int		was_visual = FALSE;
7283     int		dir;
7284     int		flags = 0;
7285 
7286     if (cap->oap->op_type != OP_NOP)
7287     {
7288 #ifdef FEAT_DIFF
7289 	// "dp" is ":diffput"
7290 	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
7291 	{
7292 	    clearop(cap->oap);
7293 	    nv_diffgetput(TRUE, cap->opcount);
7294 	}
7295 	else
7296 #endif
7297 	clearopbeep(cap->oap);
7298     }
7299 #ifdef FEAT_JOB_CHANNEL
7300     else if (bt_prompt(curbuf) && !prompt_curpos_editable())
7301     {
7302 	clearopbeep(cap->oap);
7303     }
7304 #endif
7305     else
7306     {
7307 	if (fix_indent)
7308 	{
7309 	    dir = (cap->cmdchar == ']' && cap->nchar == 'p')
7310 							 ? FORWARD : BACKWARD;
7311 	    flags |= PUT_FIXINDENT;
7312 	}
7313 	else
7314 	    dir = (cap->cmdchar == 'P'
7315 				 || (cap->cmdchar == 'g' && cap->nchar == 'P'))
7316 							 ? BACKWARD : FORWARD;
7317 	prep_redo_cmd(cap);
7318 	if (cap->cmdchar == 'g')
7319 	    flags |= PUT_CURSEND;
7320 
7321 	if (VIsual_active)
7322 	{
7323 	    // Putting in Visual mode: The put text replaces the selected
7324 	    // text.  First delete the selected text, then put the new text.
7325 	    // Need to save and restore the registers that the delete
7326 	    // overwrites if the old contents is being put.
7327 	    was_visual = TRUE;
7328 	    regname = cap->oap->regname;
7329 #ifdef FEAT_CLIPBOARD
7330 	    adjust_clip_reg(&regname);
7331 #endif
7332 	   if (regname == 0 || regname == '"'
7333 				     || VIM_ISDIGIT(regname) || regname == '-'
7334 #ifdef FEAT_CLIPBOARD
7335 		    || (clip_unnamed && (regname == '*' || regname == '+'))
7336 #endif
7337 
7338 		    )
7339 	    {
7340 		// The delete is going to overwrite the register we want to
7341 		// put, save it first.
7342 		reg1 = get_register(regname, TRUE);
7343 	    }
7344 
7345 	    // Now delete the selected text. Avoid messages here.
7346 	    cap->cmdchar = 'd';
7347 	    cap->nchar = NUL;
7348 	    cap->oap->regname = NUL;
7349 	    ++msg_silent;
7350 	    nv_operator(cap);
7351 	    do_pending_operator(cap, 0, FALSE);
7352 	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
7353 	    --msg_silent;
7354 
7355 	    // delete PUT_LINE_BACKWARD;
7356 	    cap->oap->regname = regname;
7357 
7358 	    if (reg1 != NULL)
7359 	    {
7360 		// Delete probably changed the register we want to put, save
7361 		// it first. Then put back what was there before the delete.
7362 		reg2 = get_register(regname, FALSE);
7363 		put_register(regname, reg1);
7364 	    }
7365 
7366 	    // When deleted a linewise Visual area, put the register as
7367 	    // lines to avoid it joined with the next line.  When deletion was
7368 	    // characterwise, split a line when putting lines.
7369 	    if (VIsual_mode == 'V')
7370 		flags |= PUT_LINE;
7371 	    else if (VIsual_mode == 'v')
7372 		flags |= PUT_LINE_SPLIT;
7373 	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
7374 		flags |= PUT_LINE_FORWARD;
7375 	    dir = BACKWARD;
7376 	    if ((VIsual_mode != 'V'
7377 			&& curwin->w_cursor.col < curbuf->b_op_start.col)
7378 		    || (VIsual_mode == 'V'
7379 			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
7380 		// cursor is at the end of the line or end of file, put
7381 		// forward.
7382 		dir = FORWARD;
7383 	    // May have been reset in do_put().
7384 	    VIsual_active = TRUE;
7385 	}
7386 	do_put(cap->oap->regname, dir, cap->count1, flags);
7387 
7388 	// If a register was saved, put it back now.
7389 	if (reg2 != NULL)
7390 	    put_register(regname, reg2);
7391 
7392 	// What to reselect with "gv"?  Selecting the just put text seems to
7393 	// be the most useful, since the original text was removed.
7394 	if (was_visual)
7395 	{
7396 	    curbuf->b_visual.vi_start = curbuf->b_op_start;
7397 	    curbuf->b_visual.vi_end = curbuf->b_op_end;
7398 	    // need to adjust cursor position
7399 	    if (*p_sel == 'e')
7400 		inc(&curbuf->b_visual.vi_end);
7401 	}
7402 
7403 	// When all lines were selected and deleted do_put() leaves an empty
7404 	// line that needs to be deleted now.
7405 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
7406 	{
7407 	    ml_delete_flags(curbuf->b_ml.ml_line_count, ML_DEL_MESSAGE);
7408 	    deleted_lines(curbuf->b_ml.ml_line_count + 1, 1);
7409 
7410 	    // If the cursor was in that line, move it to the end of the last
7411 	    // line.
7412 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
7413 	    {
7414 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
7415 		coladvance((colnr_T)MAXCOL);
7416 	    }
7417 	}
7418 	auto_format(FALSE, TRUE);
7419     }
7420 }
7421 
7422 /*
7423  * "o" and "O" commands.
7424  */
7425     static void
7426 nv_open(cmdarg_T *cap)
7427 {
7428 #ifdef FEAT_DIFF
7429     // "do" is ":diffget"
7430     if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
7431     {
7432 	clearop(cap->oap);
7433 	nv_diffgetput(FALSE, cap->opcount);
7434     }
7435     else
7436 #endif
7437     if (VIsual_active)  // switch start and end of visual
7438 	v_swap_corners(cap->cmdchar);
7439 #ifdef FEAT_JOB_CHANNEL
7440     else if (bt_prompt(curbuf))
7441 	clearopbeep(cap->oap);
7442 #endif
7443     else
7444 	n_opencmd(cap);
7445 }
7446 
7447 #ifdef FEAT_NETBEANS_INTG
7448     static void
7449 nv_nbcmd(cmdarg_T *cap)
7450 {
7451     netbeans_keycommand(cap->nchar);
7452 }
7453 #endif
7454 
7455 #ifdef FEAT_DND
7456     static void
7457 nv_drop(cmdarg_T *cap UNUSED)
7458 {
7459     do_put('~', BACKWARD, 1L, PUT_CURSEND);
7460 }
7461 #endif
7462 
7463 /*
7464  * Trigger CursorHold event.
7465  * When waiting for a character for 'updatetime' K_CURSORHOLD is put in the
7466  * input buffer.  "did_cursorhold" is set to avoid retriggering.
7467  */
7468     static void
7469 nv_cursorhold(cmdarg_T *cap)
7470 {
7471     apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
7472     did_cursorhold = TRUE;
7473     cap->retval |= CA_COMMAND_BUSY;	// don't call edit() now
7474 }
7475