xref: /vim-8.2.3635/src/normal.c (revision 64d8e25b)
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 /*
18  * The Visual area is remembered for reselection.
19  */
20 static int	resel_VIsual_mode = NUL;	/* 'v', 'V', or Ctrl-V */
21 static linenr_T	resel_VIsual_line_count;	/* number of lines */
22 static colnr_T	resel_VIsual_vcol;		/* nr of cols or end col */
23 static int	VIsual_mode_orig = NUL;		/* saved Visual mode */
24 
25 static int	restart_VIsual_select = 0;
26 
27 #ifdef FEAT_EVAL
28 static void	set_vcount_ca(cmdarg_T *cap, int *set_prevcount);
29 #endif
30 static int
31 #ifdef __BORLANDC__
32     _RTLENTRYF
33 #endif
34 		nv_compare(const void *s1, const void *s2);
35 static int	find_command(int cmdchar);
36 static void	op_colon(oparg_T *oap);
37 static void	op_function(oparg_T *oap);
38 #if defined(FEAT_MOUSE)
39 static void	find_start_of_word(pos_T *);
40 static void	find_end_of_word(pos_T *);
41 static int	get_mouse_class(char_u *p);
42 #endif
43 static void	prep_redo_cmd(cmdarg_T *cap);
44 static void	prep_redo(int regname, long, int, int, int, int, int);
45 static int	checkclearop(oparg_T *oap);
46 static int	checkclearopq(oparg_T *oap);
47 static void	clearop(oparg_T *oap);
48 static void	clearopbeep(oparg_T *oap);
49 static void	unshift_special(cmdarg_T *cap);
50 static void	may_clear_cmdline(void);
51 #ifdef FEAT_CMDL_INFO
52 static void	del_from_showcmd(int);
53 #endif
54 
55 /*
56  * nv_*(): functions called to handle Normal and Visual mode commands.
57  * n_*(): functions called to handle Normal mode commands.
58  * v_*(): functions called to handle Visual mode commands.
59  */
60 static void	nv_ignore(cmdarg_T *cap);
61 static void	nv_nop(cmdarg_T *cap);
62 static void	nv_error(cmdarg_T *cap);
63 static void	nv_help(cmdarg_T *cap);
64 static void	nv_addsub(cmdarg_T *cap);
65 static void	nv_page(cmdarg_T *cap);
66 static void	nv_gd(oparg_T *oap, int nchar, int thisblock);
67 static int	nv_screengo(oparg_T *oap, int dir, long dist);
68 #ifdef FEAT_MOUSE
69 static void	nv_mousescroll(cmdarg_T *cap);
70 static void	nv_mouse(cmdarg_T *cap);
71 #endif
72 static void	nv_scroll_line(cmdarg_T *cap);
73 static void	nv_zet(cmdarg_T *cap);
74 #ifdef FEAT_GUI
75 static void	nv_ver_scrollbar(cmdarg_T *cap);
76 static void	nv_hor_scrollbar(cmdarg_T *cap);
77 #endif
78 #ifdef FEAT_GUI_TABLINE
79 static void	nv_tabline(cmdarg_T *cap);
80 static void	nv_tabmenu(cmdarg_T *cap);
81 #endif
82 static void	nv_exmode(cmdarg_T *cap);
83 static void	nv_colon(cmdarg_T *cap);
84 static void	nv_ctrlg(cmdarg_T *cap);
85 static void	nv_ctrlh(cmdarg_T *cap);
86 static void	nv_clear(cmdarg_T *cap);
87 static void	nv_ctrlo(cmdarg_T *cap);
88 static void	nv_hat(cmdarg_T *cap);
89 static void	nv_Zet(cmdarg_T *cap);
90 static void	nv_ident(cmdarg_T *cap);
91 static void	nv_tagpop(cmdarg_T *cap);
92 static void	nv_scroll(cmdarg_T *cap);
93 static void	nv_right(cmdarg_T *cap);
94 static void	nv_left(cmdarg_T *cap);
95 static void	nv_up(cmdarg_T *cap);
96 static void	nv_down(cmdarg_T *cap);
97 #ifdef FEAT_SEARCHPATH
98 static void	nv_gotofile(cmdarg_T *cap);
99 #endif
100 static void	nv_end(cmdarg_T *cap);
101 static void	nv_dollar(cmdarg_T *cap);
102 static void	nv_search(cmdarg_T *cap);
103 static void	nv_next(cmdarg_T *cap);
104 static int	normal_search(cmdarg_T *cap, int dir, char_u *pat, int opt);
105 static void	nv_csearch(cmdarg_T *cap);
106 static void	nv_brackets(cmdarg_T *cap);
107 static void	nv_percent(cmdarg_T *cap);
108 static void	nv_brace(cmdarg_T *cap);
109 static void	nv_mark(cmdarg_T *cap);
110 static void	nv_findpar(cmdarg_T *cap);
111 static void	nv_undo(cmdarg_T *cap);
112 static void	nv_kundo(cmdarg_T *cap);
113 static void	nv_Replace(cmdarg_T *cap);
114 #ifdef FEAT_VREPLACE
115 static void	nv_vreplace(cmdarg_T *cap);
116 #endif
117 static void	v_swap_corners(int cmdchar);
118 static void	nv_replace(cmdarg_T *cap);
119 static void	n_swapchar(cmdarg_T *cap);
120 static void	nv_cursormark(cmdarg_T *cap, int flag, pos_T *pos);
121 static void	v_visop(cmdarg_T *cap);
122 static void	nv_subst(cmdarg_T *cap);
123 static void	nv_abbrev(cmdarg_T *cap);
124 static void	nv_optrans(cmdarg_T *cap);
125 static void	nv_gomark(cmdarg_T *cap);
126 static void	nv_pcmark(cmdarg_T *cap);
127 static void	nv_regname(cmdarg_T *cap);
128 static void	nv_visual(cmdarg_T *cap);
129 static void	n_start_visual_mode(int c);
130 static void	nv_window(cmdarg_T *cap);
131 static void	nv_suspend(cmdarg_T *cap);
132 static void	nv_g_cmd(cmdarg_T *cap);
133 static void	n_opencmd(cmdarg_T *cap);
134 static void	nv_dot(cmdarg_T *cap);
135 static void	nv_redo(cmdarg_T *cap);
136 static void	nv_Undo(cmdarg_T *cap);
137 static void	nv_tilde(cmdarg_T *cap);
138 static void	nv_operator(cmdarg_T *cap);
139 #ifdef FEAT_EVAL
140 static void	set_op_var(int optype);
141 #endif
142 static void	nv_lineop(cmdarg_T *cap);
143 static void	nv_home(cmdarg_T *cap);
144 static void	nv_pipe(cmdarg_T *cap);
145 static void	nv_bck_word(cmdarg_T *cap);
146 static void	nv_wordcmd(cmdarg_T *cap);
147 static void	nv_beginline(cmdarg_T *cap);
148 static void	adjust_cursor(oparg_T *oap);
149 static void	adjust_for_sel(cmdarg_T *cap);
150 static int	unadjust_for_sel(void);
151 static void	nv_select(cmdarg_T *cap);
152 static void	nv_goto(cmdarg_T *cap);
153 static void	nv_normal(cmdarg_T *cap);
154 static void	nv_esc(cmdarg_T *oap);
155 static void	nv_edit(cmdarg_T *cap);
156 static void	invoke_edit(cmdarg_T *cap, int repl, int cmd, int startln);
157 #ifdef FEAT_TEXTOBJ
158 static void	nv_object(cmdarg_T *cap);
159 #endif
160 static void	nv_record(cmdarg_T *cap);
161 static void	nv_at(cmdarg_T *cap);
162 static void	nv_halfpage(cmdarg_T *cap);
163 static void	nv_join(cmdarg_T *cap);
164 static void	nv_put(cmdarg_T *cap);
165 static void	nv_open(cmdarg_T *cap);
166 #ifdef FEAT_NETBEANS_INTG
167 static void	nv_nbcmd(cmdarg_T *cap);
168 #endif
169 #ifdef FEAT_DND
170 static void	nv_drop(cmdarg_T *cap);
171 #endif
172 #ifdef FEAT_AUTOCMD
173 static void	nv_cursorhold(cmdarg_T *cap);
174 #endif
175 static void	get_op_vcol(oparg_T *oap, colnr_T col, int initial);
176 
177 static char *e_noident = N_("E349: No identifier under cursor");
178 
179 /*
180  * Function to be called for a Normal or Visual mode command.
181  * The argument is a cmdarg_T.
182  */
183 typedef void (*nv_func_T)(cmdarg_T *cap);
184 
185 /* Values for cmd_flags. */
186 #define NV_NCH	    0x01	  /* may need to get a second char */
187 #define NV_NCH_NOP  (0x02|NV_NCH) /* get second char when no operator pending */
188 #define NV_NCH_ALW  (0x04|NV_NCH) /* always get a second char */
189 #define NV_LANG	    0x08	/* second char needs language adjustment */
190 
191 #define NV_SS	    0x10	/* may start selection */
192 #define NV_SSS	    0x20	/* may start selection with shift modifier */
193 #define NV_STS	    0x40	/* may stop selection without shift modif. */
194 #define NV_RL	    0x80	/* 'rightleft' modifies command */
195 #define NV_KEEPREG  0x100	/* don't clear regname */
196 #define NV_NCW	    0x200	/* not allowed in command-line window */
197 
198 /*
199  * Generally speaking, every Normal mode command should either clear any
200  * pending operator (with *clearop*()), or set the motion type variable
201  * oap->motion_type.
202  *
203  * When a cursor motion command is made, it is marked as being a character or
204  * line oriented motion.  Then, if an operator is in effect, the operation
205  * becomes character or line oriented accordingly.
206  */
207 
208 /*
209  * This table contains one entry for every Normal or Visual mode command.
210  * The order doesn't matter, init_normal_cmds() will create a sorted index.
211  * It is faster when all keys from zero to '~' are present.
212  */
213 static const struct nv_cmd
214 {
215     int		cmd_char;	/* (first) command character */
216     nv_func_T   cmd_func;	/* function for this command */
217     short_u	cmd_flags;	/* NV_ flags */
218     short	cmd_arg;	/* value for ca.arg */
219 } nv_cmds[] =
220 {
221     {NUL,	nv_error,	0,			0},
222     {Ctrl_A,	nv_addsub,	0,			0},
223     {Ctrl_B,	nv_page,	NV_STS,			BACKWARD},
224     {Ctrl_C,	nv_esc,		0,			TRUE},
225     {Ctrl_D,	nv_halfpage,	0,			0},
226     {Ctrl_E,	nv_scroll_line,	0,			TRUE},
227     {Ctrl_F,	nv_page,	NV_STS,			FORWARD},
228     {Ctrl_G,	nv_ctrlg,	0,			0},
229     {Ctrl_H,	nv_ctrlh,	0,			0},
230     {Ctrl_I,	nv_pcmark,	0,			0},
231     {NL,	nv_down,	0,			FALSE},
232     {Ctrl_K,	nv_error,	0,			0},
233     {Ctrl_L,	nv_clear,	0,			0},
234     {Ctrl_M,	nv_down,	0,			TRUE},
235     {Ctrl_N,	nv_down,	NV_STS,			FALSE},
236     {Ctrl_O,	nv_ctrlo,	0,			0},
237     {Ctrl_P,	nv_up,		NV_STS,			FALSE},
238     {Ctrl_Q,	nv_visual,	0,			FALSE},
239     {Ctrl_R,	nv_redo,	0,			0},
240     {Ctrl_S,	nv_ignore,	0,			0},
241     {Ctrl_T,	nv_tagpop,	NV_NCW,			0},
242     {Ctrl_U,	nv_halfpage,	0,			0},
243     {Ctrl_V,	nv_visual,	0,			FALSE},
244     {'V',	nv_visual,	0,			FALSE},
245     {'v',	nv_visual,	0,			FALSE},
246     {Ctrl_W,	nv_window,	0,			0},
247     {Ctrl_X,	nv_addsub,	0,			0},
248     {Ctrl_Y,	nv_scroll_line,	0,			FALSE},
249     {Ctrl_Z,	nv_suspend,	0,			0},
250     {ESC,	nv_esc,		0,			FALSE},
251     {Ctrl_BSL,	nv_normal,	NV_NCH_ALW,		0},
252     {Ctrl_RSB,	nv_ident,	NV_NCW,			0},
253     {Ctrl_HAT,	nv_hat,		NV_NCW,			0},
254     {Ctrl__,	nv_error,	0,			0},
255     {' ',	nv_right,	0,			0},
256     {'!',	nv_operator,	0,			0},
257     {'"',	nv_regname,	NV_NCH_NOP|NV_KEEPREG,	0},
258     {'#',	nv_ident,	0,			0},
259     {'$',	nv_dollar,	0,			0},
260     {'%',	nv_percent,	0,			0},
261     {'&',	nv_optrans,	0,			0},
262     {'\'',	nv_gomark,	NV_NCH_ALW,		TRUE},
263     {'(',	nv_brace,	0,			BACKWARD},
264     {')',	nv_brace,	0,			FORWARD},
265     {'*',	nv_ident,	0,			0},
266     {'+',	nv_down,	0,			TRUE},
267     {',',	nv_csearch,	0,			TRUE},
268     {'-',	nv_up,		0,			TRUE},
269     {'.',	nv_dot,		NV_KEEPREG,		0},
270     {'/',	nv_search,	0,			FALSE},
271     {'0',	nv_beginline,	0,			0},
272     {'1',	nv_ignore,	0,			0},
273     {'2',	nv_ignore,	0,			0},
274     {'3',	nv_ignore,	0,			0},
275     {'4',	nv_ignore,	0,			0},
276     {'5',	nv_ignore,	0,			0},
277     {'6',	nv_ignore,	0,			0},
278     {'7',	nv_ignore,	0,			0},
279     {'8',	nv_ignore,	0,			0},
280     {'9',	nv_ignore,	0,			0},
281     {':',	nv_colon,	0,			0},
282     {';',	nv_csearch,	0,			FALSE},
283     {'<',	nv_operator,	NV_RL,			0},
284     {'=',	nv_operator,	0,			0},
285     {'>',	nv_operator,	NV_RL,			0},
286     {'?',	nv_search,	0,			FALSE},
287     {'@',	nv_at,		NV_NCH_NOP,		FALSE},
288     {'A',	nv_edit,	0,			0},
289     {'B',	nv_bck_word,	0,			1},
290     {'C',	nv_abbrev,	NV_KEEPREG,		0},
291     {'D',	nv_abbrev,	NV_KEEPREG,		0},
292     {'E',	nv_wordcmd,	0,			TRUE},
293     {'F',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
294     {'G',	nv_goto,	0,			TRUE},
295     {'H',	nv_scroll,	0,			0},
296     {'I',	nv_edit,	0,			0},
297     {'J',	nv_join,	0,			0},
298     {'K',	nv_ident,	0,			0},
299     {'L',	nv_scroll,	0,			0},
300     {'M',	nv_scroll,	0,			0},
301     {'N',	nv_next,	0,			SEARCH_REV},
302     {'O',	nv_open,	0,			0},
303     {'P',	nv_put,		0,			0},
304     {'Q',	nv_exmode,	NV_NCW,			0},
305     {'R',	nv_Replace,	0,			FALSE},
306     {'S',	nv_subst,	NV_KEEPREG,		0},
307     {'T',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
308     {'U',	nv_Undo,	0,			0},
309     {'W',	nv_wordcmd,	0,			TRUE},
310     {'X',	nv_abbrev,	NV_KEEPREG,		0},
311     {'Y',	nv_abbrev,	NV_KEEPREG,		0},
312     {'Z',	nv_Zet,		NV_NCH_NOP|NV_NCW,	0},
313     {'[',	nv_brackets,	NV_NCH_ALW,		BACKWARD},
314     {'\\',	nv_error,	0,			0},
315     {']',	nv_brackets,	NV_NCH_ALW,		FORWARD},
316     {'^',	nv_beginline,	0,			BL_WHITE | BL_FIX},
317     {'_',	nv_lineop,	0,			0},
318     {'`',	nv_gomark,	NV_NCH_ALW,		FALSE},
319     {'a',	nv_edit,	NV_NCH,			0},
320     {'b',	nv_bck_word,	0,			0},
321     {'c',	nv_operator,	0,			0},
322     {'d',	nv_operator,	0,			0},
323     {'e',	nv_wordcmd,	0,			FALSE},
324     {'f',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
325     {'g',	nv_g_cmd,	NV_NCH_ALW,		FALSE},
326     {'h',	nv_left,	NV_RL,			0},
327     {'i',	nv_edit,	NV_NCH,			0},
328     {'j',	nv_down,	0,			FALSE},
329     {'k',	nv_up,		0,			FALSE},
330     {'l',	nv_right,	NV_RL,			0},
331     {'m',	nv_mark,	NV_NCH_NOP,		0},
332     {'n',	nv_next,	0,			0},
333     {'o',	nv_open,	0,			0},
334     {'p',	nv_put,		0,			0},
335     {'q',	nv_record,	NV_NCH,			0},
336     {'r',	nv_replace,	NV_NCH_NOP|NV_LANG,	0},
337     {'s',	nv_subst,	NV_KEEPREG,		0},
338     {'t',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
339     {'u',	nv_undo,	0,			0},
340     {'w',	nv_wordcmd,	0,			FALSE},
341     {'x',	nv_abbrev,	NV_KEEPREG,		0},
342     {'y',	nv_operator,	0,			0},
343     {'z',	nv_zet,		NV_NCH_ALW,		0},
344     {'{',	nv_findpar,	0,			BACKWARD},
345     {'|',	nv_pipe,	0,			0},
346     {'}',	nv_findpar,	0,			FORWARD},
347     {'~',	nv_tilde,	0,			0},
348 
349     /* pound sign */
350     {POUND,	nv_ident,	0,			0},
351 #ifdef FEAT_MOUSE
352     {K_MOUSEUP, nv_mousescroll,	0,			MSCR_UP},
353     {K_MOUSEDOWN, nv_mousescroll, 0,			MSCR_DOWN},
354     {K_MOUSELEFT, nv_mousescroll, 0,			MSCR_LEFT},
355     {K_MOUSERIGHT, nv_mousescroll, 0,			MSCR_RIGHT},
356     {K_LEFTMOUSE, nv_mouse,	0,			0},
357     {K_LEFTMOUSE_NM, nv_mouse,	0,			0},
358     {K_LEFTDRAG, nv_mouse,	0,			0},
359     {K_LEFTRELEASE, nv_mouse,	0,			0},
360     {K_LEFTRELEASE_NM, nv_mouse, 0,			0},
361     {K_MIDDLEMOUSE, nv_mouse,	0,			0},
362     {K_MIDDLEDRAG, nv_mouse,	0,			0},
363     {K_MIDDLERELEASE, nv_mouse,	0,			0},
364     {K_RIGHTMOUSE, nv_mouse,	0,			0},
365     {K_RIGHTDRAG, nv_mouse,	0,			0},
366     {K_RIGHTRELEASE, nv_mouse,	0,			0},
367     {K_X1MOUSE, nv_mouse,	0,			0},
368     {K_X1DRAG, nv_mouse,	0,			0},
369     {K_X1RELEASE, nv_mouse,	0,			0},
370     {K_X2MOUSE, nv_mouse,	0,			0},
371     {K_X2DRAG, nv_mouse,	0,			0},
372     {K_X2RELEASE, nv_mouse,	0,			0},
373 #endif
374     {K_IGNORE,	nv_ignore,	NV_KEEPREG,		0},
375     {K_NOP,	nv_nop,		0,			0},
376     {K_INS,	nv_edit,	0,			0},
377     {K_KINS,	nv_edit,	0,			0},
378     {K_BS,	nv_ctrlh,	0,			0},
379     {K_UP,	nv_up,		NV_SSS|NV_STS,		FALSE},
380     {K_S_UP,	nv_page,	NV_SS,			BACKWARD},
381     {K_DOWN,	nv_down,	NV_SSS|NV_STS,		FALSE},
382     {K_S_DOWN,	nv_page,	NV_SS,			FORWARD},
383     {K_LEFT,	nv_left,	NV_SSS|NV_STS|NV_RL,	0},
384     {K_S_LEFT,	nv_bck_word,	NV_SS|NV_RL,		0},
385     {K_C_LEFT,	nv_bck_word,	NV_SSS|NV_RL|NV_STS,	1},
386     {K_RIGHT,	nv_right,	NV_SSS|NV_STS|NV_RL,	0},
387     {K_S_RIGHT,	nv_wordcmd,	NV_SS|NV_RL,		FALSE},
388     {K_C_RIGHT,	nv_wordcmd,	NV_SSS|NV_RL|NV_STS,	TRUE},
389     {K_PAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
390     {K_KPAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
391     {K_PAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
392     {K_KPAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
393     {K_END,	nv_end,		NV_SSS|NV_STS,		FALSE},
394     {K_KEND,	nv_end,		NV_SSS|NV_STS,		FALSE},
395     {K_S_END,	nv_end,		NV_SS,			FALSE},
396     {K_C_END,	nv_end,		NV_SSS|NV_STS,		TRUE},
397     {K_HOME,	nv_home,	NV_SSS|NV_STS,		0},
398     {K_KHOME,	nv_home,	NV_SSS|NV_STS,		0},
399     {K_S_HOME,	nv_home,	NV_SS,			0},
400     {K_C_HOME,	nv_goto,	NV_SSS|NV_STS,		FALSE},
401     {K_DEL,	nv_abbrev,	0,			0},
402     {K_KDEL,	nv_abbrev,	0,			0},
403     {K_UNDO,	nv_kundo,	0,			0},
404     {K_HELP,	nv_help,	NV_NCW,			0},
405     {K_F1,	nv_help,	NV_NCW,			0},
406     {K_XF1,	nv_help,	NV_NCW,			0},
407     {K_SELECT,	nv_select,	0,			0},
408 #ifdef FEAT_GUI
409     {K_VER_SCROLLBAR, nv_ver_scrollbar, 0,		0},
410     {K_HOR_SCROLLBAR, nv_hor_scrollbar, 0,		0},
411 #endif
412 #ifdef FEAT_GUI_TABLINE
413     {K_TABLINE, nv_tabline,	0,			0},
414     {K_TABMENU, nv_tabmenu,	0,			0},
415 #endif
416 #ifdef FEAT_FKMAP
417     {K_F8,	farsi_f8,	0,			0},
418     {K_F9,	farsi_f9,	0,			0},
419 #endif
420 #ifdef FEAT_NETBEANS_INTG
421     {K_F21,	nv_nbcmd,	NV_NCH_ALW,		0},
422 #endif
423 #ifdef FEAT_DND
424     {K_DROP,	nv_drop,	NV_STS,			0},
425 #endif
426 #ifdef FEAT_AUTOCMD
427     {K_CURSORHOLD, nv_cursorhold, NV_KEEPREG,		0},
428 #endif
429 };
430 
431 /* Number of commands in nv_cmds[]. */
432 #define NV_CMDS_SIZE (sizeof(nv_cmds) / sizeof(struct nv_cmd))
433 
434 /* Sorted index of commands in nv_cmds[]. */
435 static short nv_cmd_idx[NV_CMDS_SIZE];
436 
437 /* The highest index for which
438  * nv_cmds[idx].cmd_char == nv_cmd_idx[nv_cmds[idx].cmd_char] */
439 static int nv_max_linear;
440 
441 /*
442  * Compare functions for qsort() below, that checks the command character
443  * through the index in nv_cmd_idx[].
444  */
445     static int
446 #ifdef __BORLANDC__
447 _RTLENTRYF
448 #endif
449 nv_compare(const void *s1, const void *s2)
450 {
451     int		c1, c2;
452 
453     /* The commands are sorted on absolute value. */
454     c1 = nv_cmds[*(const short *)s1].cmd_char;
455     c2 = nv_cmds[*(const short *)s2].cmd_char;
456     if (c1 < 0)
457 	c1 = -c1;
458     if (c2 < 0)
459 	c2 = -c2;
460     return c1 - c2;
461 }
462 
463 /*
464  * Initialize the nv_cmd_idx[] table.
465  */
466     void
467 init_normal_cmds(void)
468 {
469     int		i;
470 
471     /* Fill the index table with a one to one relation. */
472     for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
473 	nv_cmd_idx[i] = i;
474 
475     /* Sort the commands by the command character.  */
476     qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);
477 
478     /* Find the first entry that can't be indexed by the command character. */
479     for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
480 	if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
481 	    break;
482     nv_max_linear = i - 1;
483 }
484 
485 /*
486  * Search for a command in the commands table.
487  * Returns -1 for invalid command.
488  */
489     static int
490 find_command(int cmdchar)
491 {
492     int		i;
493     int		idx;
494     int		top, bot;
495     int		c;
496 
497 #ifdef FEAT_MBYTE
498     /* A multi-byte character is never a command. */
499     if (cmdchar >= 0x100)
500 	return -1;
501 #endif
502 
503     /* We use the absolute value of the character.  Special keys have a
504      * negative value, but are sorted on their absolute value. */
505     if (cmdchar < 0)
506 	cmdchar = -cmdchar;
507 
508     /* If the character is in the first part: The character is the index into
509      * nv_cmd_idx[]. */
510     if (cmdchar <= nv_max_linear)
511 	return nv_cmd_idx[cmdchar];
512 
513     /* Perform a binary search. */
514     bot = nv_max_linear + 1;
515     top = NV_CMDS_SIZE - 1;
516     idx = -1;
517     while (bot <= top)
518     {
519 	i = (top + bot) / 2;
520 	c = nv_cmds[nv_cmd_idx[i]].cmd_char;
521 	if (c < 0)
522 	    c = -c;
523 	if (cmdchar == c)
524 	{
525 	    idx = nv_cmd_idx[i];
526 	    break;
527 	}
528 	if (cmdchar > c)
529 	    bot = i + 1;
530 	else
531 	    top = i - 1;
532     }
533     return idx;
534 }
535 
536 /*
537  * Execute a command in Normal mode.
538  */
539     void
540 normal_cmd(
541     oparg_T	*oap,
542     int		toplevel UNUSED)	/* TRUE when called from main() */
543 {
544     cmdarg_T	ca;			/* command arguments */
545     int		c;
546     int		ctrl_w = FALSE;		/* got CTRL-W command */
547     int		old_col = curwin->w_curswant;
548 #ifdef FEAT_CMDL_INFO
549     int		need_flushbuf;		/* need to call out_flush() */
550 #endif
551     pos_T	old_pos;		/* cursor position before command */
552     int		mapped_len;
553     static int	old_mapped_len = 0;
554     int		idx;
555 #ifdef FEAT_EVAL
556     int		set_prevcount = FALSE;
557 #endif
558 
559     vim_memset(&ca, 0, sizeof(ca));	/* also resets ca.retval */
560     ca.oap = oap;
561 
562     /* Use a count remembered from before entering an operator.  After typing
563      * "3d" we return from normal_cmd() and come back here, the "3" is
564      * remembered in "opcount". */
565     ca.opcount = opcount;
566 
567     /*
568      * If there is an operator pending, then the command we take this time
569      * will terminate it. Finish_op tells us to finish the operation before
570      * returning this time (unless the operation was cancelled).
571      */
572 #ifdef CURSOR_SHAPE
573     c = finish_op;
574 #endif
575     finish_op = (oap->op_type != OP_NOP);
576 #ifdef CURSOR_SHAPE
577     if (finish_op != c)
578     {
579 	ui_cursor_shape();		/* may show different cursor shape */
580 # ifdef FEAT_MOUSESHAPE
581 	update_mouseshape(-1);
582 # endif
583     }
584 #endif
585 
586     /* When not finishing an operator and no register name typed, reset the
587      * count. */
588     if (!finish_op && !oap->regname)
589     {
590 	ca.opcount = 0;
591 #ifdef FEAT_EVAL
592 	set_prevcount = TRUE;
593 #endif
594     }
595 
596 #ifdef FEAT_AUTOCMD
597     /* Restore counts from before receiving K_CURSORHOLD.  This means after
598      * typing "3", handling K_CURSORHOLD and then typing "2" we get "32", not
599      * "3 * 2". */
600     if (oap->prev_opcount > 0 || oap->prev_count0 > 0)
601     {
602 	ca.opcount = oap->prev_opcount;
603 	ca.count0 = oap->prev_count0;
604 	oap->prev_opcount = 0;
605 	oap->prev_count0 = 0;
606     }
607 #endif
608 
609     mapped_len = typebuf_maplen();
610 
611     State = NORMAL_BUSY;
612 #ifdef USE_ON_FLY_SCROLL
613     dont_scroll = FALSE;	/* allow scrolling here */
614 #endif
615 
616 #ifdef FEAT_EVAL
617     /* Set v:count here, when called from main() and not a stuffed
618      * command, so that v:count can be used in an expression mapping
619      * when there is no count. Do set it for redo. */
620     if (toplevel && readbuf1_empty())
621 	set_vcount_ca(&ca, &set_prevcount);
622 #endif
623 
624     /*
625      * Get the command character from the user.
626      */
627     c = safe_vgetc();
628     LANGMAP_ADJUST(c, get_real_state() != SELECTMODE);
629 
630     /*
631      * If a mapping was started in Visual or Select mode, remember the length
632      * of the mapping.  This is used below to not return to Insert mode for as
633      * long as the mapping is being executed.
634      */
635     if (restart_edit == 0)
636 	old_mapped_len = 0;
637     else if (old_mapped_len
638 		|| (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0))
639 	old_mapped_len = typebuf_maplen();
640 
641     if (c == NUL)
642 	c = K_ZERO;
643 
644     /*
645      * In Select mode, typed text replaces the selection.
646      */
647     if (VIsual_active
648 	    && VIsual_select
649 	    && (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
650     {
651 	/* Fake a "c"hange command.  When "restart_edit" is set (e.g., because
652 	 * 'insertmode' is set) fake a "d"elete command, Insert mode will
653 	 * restart automatically.
654 	 * Insert the typed character in the typeahead buffer, so that it can
655 	 * be mapped in Insert mode.  Required for ":lmap" to work. */
656 	ins_char_typebuf(c);
657 	if (restart_edit != 0)
658 	    c = 'd';
659 	else
660 	    c = 'c';
661 	msg_nowait = TRUE;	/* don't delay going to insert mode */
662 	old_mapped_len = 0;	/* do go to Insert mode */
663     }
664 
665 #ifdef FEAT_CMDL_INFO
666     need_flushbuf = add_to_showcmd(c);
667 #endif
668 
669 getcount:
670     if (!(VIsual_active && VIsual_select))
671     {
672 	/*
673 	 * Handle a count before a command and compute ca.count0.
674 	 * Note that '0' is a command and not the start of a count, but it's
675 	 * part of a count after other digits.
676 	 */
677 	while (    (c >= '1' && c <= '9')
678 		|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
679 	{
680 	    if (c == K_DEL || c == K_KDEL)
681 	    {
682 		ca.count0 /= 10;
683 #ifdef FEAT_CMDL_INFO
684 		del_from_showcmd(4);	/* delete the digit and ~@% */
685 #endif
686 	    }
687 	    else
688 		ca.count0 = ca.count0 * 10 + (c - '0');
689 	    if (ca.count0 < 0)	    /* got too large! */
690 		ca.count0 = 999999999L;
691 #ifdef FEAT_EVAL
692 	    /* Set v:count here, when called from main() and not a stuffed
693 	     * command, so that v:count can be used in an expression mapping
694 	     * right after the count. Do set it for redo. */
695 	    if (toplevel && readbuf1_empty())
696 		set_vcount_ca(&ca, &set_prevcount);
697 #endif
698 	    if (ctrl_w)
699 	    {
700 		++no_mapping;
701 		++allow_keys;		/* no mapping for nchar, but keys */
702 	    }
703 	    ++no_zero_mapping;		/* don't map zero here */
704 	    c = plain_vgetc();
705 	    LANGMAP_ADJUST(c, TRUE);
706 	    --no_zero_mapping;
707 	    if (ctrl_w)
708 	    {
709 		--no_mapping;
710 		--allow_keys;
711 	    }
712 #ifdef FEAT_CMDL_INFO
713 	    need_flushbuf |= add_to_showcmd(c);
714 #endif
715 	}
716 
717 	/*
718 	 * If we got CTRL-W there may be a/another count
719 	 */
720 	if (c == Ctrl_W && !ctrl_w && oap->op_type == OP_NOP)
721 	{
722 	    ctrl_w = TRUE;
723 	    ca.opcount = ca.count0;	/* remember first count */
724 	    ca.count0 = 0;
725 	    ++no_mapping;
726 	    ++allow_keys;		/* no mapping for nchar, but keys */
727 	    c = plain_vgetc();		/* get next character */
728 	    LANGMAP_ADJUST(c, TRUE);
729 	    --no_mapping;
730 	    --allow_keys;
731 #ifdef FEAT_CMDL_INFO
732 	    need_flushbuf |= add_to_showcmd(c);
733 #endif
734 	    goto getcount;		/* jump back */
735 	}
736     }
737 
738 #ifdef FEAT_AUTOCMD
739     if (c == K_CURSORHOLD)
740     {
741 	/* Save the count values so that ca.opcount and ca.count0 are exactly
742 	 * the same when coming back here after handling K_CURSORHOLD. */
743 	oap->prev_opcount = ca.opcount;
744 	oap->prev_count0 = ca.count0;
745     }
746     else
747 #endif
748 	if (ca.opcount != 0)
749     {
750 	/*
751 	 * If we're in the middle of an operator (including after entering a
752 	 * yank buffer with '"') AND we had a count before the operator, then
753 	 * that count overrides the current value of ca.count0.
754 	 * What this means effectively, is that commands like "3dw" get turned
755 	 * into "d3w" which makes things fall into place pretty neatly.
756 	 * If you give a count before AND after the operator, they are
757 	 * multiplied.
758 	 */
759 	if (ca.count0)
760 	    ca.count0 *= ca.opcount;
761 	else
762 	    ca.count0 = ca.opcount;
763     }
764 
765     /*
766      * Always remember the count.  It will be set to zero (on the next call,
767      * above) when there is no pending operator.
768      * When called from main(), save the count for use by the "count" built-in
769      * variable.
770      */
771     ca.opcount = ca.count0;
772     ca.count1 = (ca.count0 == 0 ? 1 : ca.count0);
773 
774 #ifdef FEAT_EVAL
775     /*
776      * Only set v:count when called from main() and not a stuffed command.
777      * Do set it for redo.
778      */
779     if (toplevel && readbuf1_empty())
780 	set_vcount(ca.count0, ca.count1, set_prevcount);
781 #endif
782 
783     /*
784      * Find the command character in the table of commands.
785      * For CTRL-W we already got nchar when looking for a count.
786      */
787     if (ctrl_w)
788     {
789 	ca.nchar = c;
790 	ca.cmdchar = Ctrl_W;
791     }
792     else
793 	ca.cmdchar = c;
794     idx = find_command(ca.cmdchar);
795     if (idx < 0)
796     {
797 	/* Not a known command: beep. */
798 	clearopbeep(oap);
799 	goto normal_end;
800     }
801 
802     if (text_locked() && (nv_cmds[idx].cmd_flags & NV_NCW))
803     {
804 	/* This command is not allowed while editing a cmdline: beep. */
805 	clearopbeep(oap);
806 	text_locked_msg();
807 	goto normal_end;
808     }
809 #ifdef FEAT_AUTOCMD
810     if ((nv_cmds[idx].cmd_flags & NV_NCW) && curbuf_locked())
811 	goto normal_end;
812 #endif
813 
814     /*
815      * In Visual/Select mode, a few keys are handled in a special way.
816      */
817     if (VIsual_active)
818     {
819 	/* when 'keymodel' contains "stopsel" may stop Select/Visual mode */
820 	if (km_stopsel
821 		&& (nv_cmds[idx].cmd_flags & NV_STS)
822 		&& !(mod_mask & MOD_MASK_SHIFT))
823 	{
824 	    end_visual_mode();
825 	    redraw_curbuf_later(INVERTED);
826 	}
827 
828 	/* Keys that work different when 'keymodel' contains "startsel" */
829 	if (km_startsel)
830 	{
831 	    if (nv_cmds[idx].cmd_flags & NV_SS)
832 	    {
833 		unshift_special(&ca);
834 		idx = find_command(ca.cmdchar);
835 		if (idx < 0)
836 		{
837 		    /* Just in case */
838 		    clearopbeep(oap);
839 		    goto normal_end;
840 		}
841 	    }
842 	    else if ((nv_cmds[idx].cmd_flags & NV_SSS)
843 					       && (mod_mask & MOD_MASK_SHIFT))
844 	    {
845 		mod_mask &= ~MOD_MASK_SHIFT;
846 	    }
847 	}
848     }
849 
850 #ifdef FEAT_RIGHTLEFT
851     if (curwin->w_p_rl && KeyTyped && !KeyStuffed
852 					  && (nv_cmds[idx].cmd_flags & NV_RL))
853     {
854 	/* Invert horizontal movements and operations.  Only when typed by the
855 	 * user directly, not when the result of a mapping or "x" translated
856 	 * to "dl". */
857 	switch (ca.cmdchar)
858 	{
859 	    case 'l':	    ca.cmdchar = 'h'; break;
860 	    case K_RIGHT:   ca.cmdchar = K_LEFT; break;
861 	    case K_S_RIGHT: ca.cmdchar = K_S_LEFT; break;
862 	    case K_C_RIGHT: ca.cmdchar = K_C_LEFT; break;
863 	    case 'h':	    ca.cmdchar = 'l'; break;
864 	    case K_LEFT:    ca.cmdchar = K_RIGHT; break;
865 	    case K_S_LEFT:  ca.cmdchar = K_S_RIGHT; break;
866 	    case K_C_LEFT:  ca.cmdchar = K_C_RIGHT; break;
867 	    case '>':	    ca.cmdchar = '<'; break;
868 	    case '<':	    ca.cmdchar = '>'; break;
869 	}
870 	idx = find_command(ca.cmdchar);
871     }
872 #endif
873 
874     /*
875      * Get an additional character if we need one.
876      */
877     if ((nv_cmds[idx].cmd_flags & NV_NCH)
878 	    && (((nv_cmds[idx].cmd_flags & NV_NCH_NOP) == NV_NCH_NOP
879 		    && oap->op_type == OP_NOP)
880 		|| (nv_cmds[idx].cmd_flags & NV_NCH_ALW) == NV_NCH_ALW
881 		|| (ca.cmdchar == 'q'
882 		    && oap->op_type == OP_NOP
883 		    && !Recording
884 		    && !Exec_reg)
885 		|| ((ca.cmdchar == 'a' || ca.cmdchar == 'i')
886 		    && (oap->op_type != OP_NOP || VIsual_active))))
887     {
888 	int	*cp;
889 	int	repl = FALSE;	/* get character for replace mode */
890 	int	lit = FALSE;	/* get extra character literally */
891 	int	langmap_active = FALSE;    /* using :lmap mappings */
892 	int	lang;		/* getting a text character */
893 #ifdef USE_IM_CONTROL
894 	int	save_smd;	/* saved value of p_smd */
895 #endif
896 
897 	++no_mapping;
898 	++allow_keys;		/* no mapping for nchar, but allow key codes */
899 #ifdef FEAT_AUTOCMD
900 	/* Don't generate a CursorHold event here, most commands can't handle
901 	 * it, e.g., nv_replace(), nv_csearch(). */
902 	did_cursorhold = TRUE;
903 #endif
904 	if (ca.cmdchar == 'g')
905 	{
906 	    /*
907 	     * For 'g' get the next character now, so that we can check for
908 	     * "gr", "g'" and "g`".
909 	     */
910 	    ca.nchar = plain_vgetc();
911 	    LANGMAP_ADJUST(ca.nchar, TRUE);
912 #ifdef FEAT_CMDL_INFO
913 	    need_flushbuf |= add_to_showcmd(ca.nchar);
914 #endif
915 	    if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
916 						       || ca.nchar == Ctrl_BSL)
917 	    {
918 		cp = &ca.extra_char;	/* need to get a third character */
919 		if (ca.nchar != 'r')
920 		    lit = TRUE;			/* get it literally */
921 		else
922 		    repl = TRUE;		/* get it in replace mode */
923 	    }
924 	    else
925 		cp = NULL;		/* no third character needed */
926 	}
927 	else
928 	{
929 	    if (ca.cmdchar == 'r')		/* get it in replace mode */
930 		repl = TRUE;
931 	    cp = &ca.nchar;
932 	}
933 	lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));
934 
935 	/*
936 	 * Get a second or third character.
937 	 */
938 	if (cp != NULL)
939 	{
940 #ifdef CURSOR_SHAPE
941 	    if (repl)
942 	    {
943 		State = REPLACE;	/* pretend Replace mode */
944 		ui_cursor_shape();	/* show different cursor shape */
945 	    }
946 #endif
947 	    if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
948 	    {
949 		/* Allow mappings defined with ":lmap". */
950 		--no_mapping;
951 		--allow_keys;
952 		if (repl)
953 		    State = LREPLACE;
954 		else
955 		    State = LANGMAP;
956 		langmap_active = TRUE;
957 	    }
958 #ifdef USE_IM_CONTROL
959 	    save_smd = p_smd;
960 	    p_smd = FALSE;	/* Don't let the IM code show the mode here */
961 	    if (lang && curbuf->b_p_iminsert == B_IMODE_IM)
962 		im_set_active(TRUE);
963 #endif
964 
965 	    *cp = plain_vgetc();
966 
967 	    if (langmap_active)
968 	    {
969 		/* Undo the decrement done above */
970 		++no_mapping;
971 		++allow_keys;
972 		State = NORMAL_BUSY;
973 	    }
974 #ifdef USE_IM_CONTROL
975 	    if (lang)
976 	    {
977 		if (curbuf->b_p_iminsert != B_IMODE_LMAP)
978 		    im_save_status(&curbuf->b_p_iminsert);
979 		im_set_active(FALSE);
980 	    }
981 	    p_smd = save_smd;
982 #endif
983 #ifdef CURSOR_SHAPE
984 	    State = NORMAL_BUSY;
985 #endif
986 #ifdef FEAT_CMDL_INFO
987 	    need_flushbuf |= add_to_showcmd(*cp);
988 #endif
989 
990 	    if (!lit)
991 	    {
992 #ifdef FEAT_DIGRAPHS
993 		/* Typing CTRL-K gets a digraph. */
994 		if (*cp == Ctrl_K
995 			&& ((nv_cmds[idx].cmd_flags & NV_LANG)
996 			    || cp == &ca.extra_char)
997 			&& vim_strchr(p_cpo, CPO_DIGRAPH) == NULL)
998 		{
999 		    c = get_digraph(FALSE);
1000 		    if (c > 0)
1001 		    {
1002 			*cp = c;
1003 # ifdef FEAT_CMDL_INFO
1004 			/* Guessing how to update showcmd here... */
1005 			del_from_showcmd(3);
1006 			need_flushbuf |= add_to_showcmd(*cp);
1007 # endif
1008 		    }
1009 		}
1010 #endif
1011 
1012 		/* adjust chars > 127, except after "tTfFr" commands */
1013 		LANGMAP_ADJUST(*cp, !lang);
1014 #ifdef FEAT_RIGHTLEFT
1015 		/* adjust Hebrew mapped char */
1016 		if (p_hkmap && lang && KeyTyped)
1017 		    *cp = hkmap(*cp);
1018 # ifdef FEAT_FKMAP
1019 		/* adjust Farsi mapped char */
1020 		if (p_fkmap && lang && KeyTyped)
1021 		    *cp = fkmap(*cp);
1022 # endif
1023 #endif
1024 	    }
1025 
1026 	    /*
1027 	     * When the next character is CTRL-\ a following CTRL-N means the
1028 	     * command is aborted and we go to Normal mode.
1029 	     */
1030 	    if (cp == &ca.extra_char
1031 		    && ca.nchar == Ctrl_BSL
1032 		    && (ca.extra_char == Ctrl_N || ca.extra_char == Ctrl_G))
1033 	    {
1034 		ca.cmdchar = Ctrl_BSL;
1035 		ca.nchar = ca.extra_char;
1036 		idx = find_command(ca.cmdchar);
1037 	    }
1038 	    else if ((ca.nchar == 'n' || ca.nchar == 'N') && ca.cmdchar == 'g')
1039 		ca.oap->op_type = get_op_type(*cp, NUL);
1040 	    else if (*cp == Ctrl_BSL)
1041 	    {
1042 		long towait = (p_ttm >= 0 ? p_ttm : p_tm);
1043 
1044 		/* There is a busy wait here when typing "f<C-\>" and then
1045 		 * something different from CTRL-N.  Can't be avoided. */
1046 		while ((c = vpeekc()) <= 0 && towait > 0L)
1047 		{
1048 		    do_sleep(towait > 50L ? 50L : towait);
1049 		    towait -= 50L;
1050 		}
1051 		if (c > 0)
1052 		{
1053 		    c = plain_vgetc();
1054 		    if (c != Ctrl_N && c != Ctrl_G)
1055 			vungetc(c);
1056 		    else
1057 		    {
1058 			ca.cmdchar = Ctrl_BSL;
1059 			ca.nchar = c;
1060 			idx = find_command(ca.cmdchar);
1061 		    }
1062 		}
1063 	    }
1064 
1065 #ifdef FEAT_MBYTE
1066 	    /* When getting a text character and the next character is a
1067 	     * multi-byte character, it could be a composing character.
1068 	     * However, don't wait for it to arrive. Also, do enable mapping,
1069 	     * because if it's put back with vungetc() it's too late to apply
1070 	     * mapping. */
1071 	    --no_mapping;
1072 	    while (enc_utf8 && lang && (c = vpeekc()) > 0
1073 				 && (c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1))
1074 	    {
1075 		c = plain_vgetc();
1076 		if (!utf_iscomposing(c))
1077 		{
1078 		    vungetc(c);		/* it wasn't, put it back */
1079 		    break;
1080 		}
1081 		else if (ca.ncharC1 == 0)
1082 		    ca.ncharC1 = c;
1083 		else
1084 		    ca.ncharC2 = c;
1085 	    }
1086 	    ++no_mapping;
1087 #endif
1088 	}
1089 	--no_mapping;
1090 	--allow_keys;
1091     }
1092 
1093 #ifdef FEAT_CMDL_INFO
1094     /*
1095      * Flush the showcmd characters onto the screen so we can see them while
1096      * the command is being executed.  Only do this when the shown command was
1097      * actually displayed, otherwise this will slow down a lot when executing
1098      * mappings.
1099      */
1100     if (need_flushbuf)
1101 	out_flush();
1102 #endif
1103 #ifdef FEAT_AUTOCMD
1104     if (ca.cmdchar != K_IGNORE)
1105 	did_cursorhold = FALSE;
1106 #endif
1107 
1108     State = NORMAL;
1109 
1110     if (ca.nchar == ESC)
1111     {
1112 	clearop(oap);
1113 	if (restart_edit == 0 && goto_im())
1114 	    restart_edit = 'a';
1115 	goto normal_end;
1116     }
1117 
1118     if (ca.cmdchar != K_IGNORE)
1119     {
1120 	msg_didout = FALSE;    /* don't scroll screen up for normal command */
1121 	msg_col = 0;
1122     }
1123 
1124     old_pos = curwin->w_cursor;		/* remember where cursor was */
1125 
1126     /* When 'keymodel' contains "startsel" some keys start Select/Visual
1127      * mode. */
1128     if (!VIsual_active && km_startsel)
1129     {
1130 	if (nv_cmds[idx].cmd_flags & NV_SS)
1131 	{
1132 	    start_selection();
1133 	    unshift_special(&ca);
1134 	    idx = find_command(ca.cmdchar);
1135 	}
1136 	else if ((nv_cmds[idx].cmd_flags & NV_SSS)
1137 					   && (mod_mask & MOD_MASK_SHIFT))
1138 	{
1139 	    start_selection();
1140 	    mod_mask &= ~MOD_MASK_SHIFT;
1141 	}
1142     }
1143 
1144     /*
1145      * Execute the command!
1146      * Call the command function found in the commands table.
1147      */
1148     ca.arg = nv_cmds[idx].cmd_arg;
1149     (nv_cmds[idx].cmd_func)(&ca);
1150 
1151     /*
1152      * If we didn't start or finish an operator, reset oap->regname, unless we
1153      * need it later.
1154      */
1155     if (!finish_op
1156 	    && !oap->op_type
1157 	    && (idx < 0 || !(nv_cmds[idx].cmd_flags & NV_KEEPREG)))
1158     {
1159 	clearop(oap);
1160 #ifdef FEAT_EVAL
1161 	{
1162 	    int regname = 0;
1163 
1164 	    /* Adjust the register according to 'clipboard', so that when
1165 	     * "unnamed" is present it becomes '*' or '+' instead of '"'. */
1166 # ifdef FEAT_CLIPBOARD
1167 	    adjust_clip_reg(&regname);
1168 # endif
1169 	    set_reg_var(regname);
1170 	}
1171 #endif
1172     }
1173 
1174     /* Get the length of mapped chars again after typing a count, second
1175      * character or "z333<cr>". */
1176     if (old_mapped_len > 0)
1177 	old_mapped_len = typebuf_maplen();
1178 
1179     /*
1180      * If an operation is pending, handle it...
1181      */
1182     do_pending_operator(&ca, old_col, FALSE);
1183 
1184     /*
1185      * Wait for a moment when a message is displayed that will be overwritten
1186      * by the mode message.
1187      * In Visual mode and with "^O" in Insert mode, a short message will be
1188      * overwritten by the mode message.  Wait a bit, until a key is hit.
1189      * In Visual mode, it's more important to keep the Visual area updated
1190      * than keeping a message (e.g. from a /pat search).
1191      * Only do this if the command was typed, not from a mapping.
1192      * Don't wait when emsg_silent is non-zero.
1193      * Also wait a bit after an error message, e.g. for "^O:".
1194      * Don't redraw the screen, it would remove the message.
1195      */
1196     if (       ((p_smd
1197 		    && msg_silent == 0
1198 		    && (restart_edit != 0
1199 			|| (VIsual_active
1200 			    && old_pos.lnum == curwin->w_cursor.lnum
1201 			    && old_pos.col == curwin->w_cursor.col)
1202 		       )
1203 		    && (clear_cmdline
1204 			|| redraw_cmdline)
1205 		    && (msg_didout || (msg_didany && msg_scroll))
1206 		    && !msg_nowait
1207 		    && KeyTyped)
1208 		|| (restart_edit != 0
1209 		    && !VIsual_active
1210 		    && (msg_scroll
1211 			|| emsg_on_display)))
1212 	    && oap->regname == 0
1213 	    && !(ca.retval & CA_COMMAND_BUSY)
1214 	    && stuff_empty()
1215 	    && typebuf_typed()
1216 	    && emsg_silent == 0
1217 	    && !did_wait_return
1218 	    && oap->op_type == OP_NOP)
1219     {
1220 	int	save_State = State;
1221 
1222 	/* Draw the cursor with the right shape here */
1223 	if (restart_edit != 0)
1224 	    State = INSERT;
1225 
1226 	/* If need to redraw, and there is a "keep_msg", redraw before the
1227 	 * delay */
1228 	if (must_redraw && keep_msg != NULL && !emsg_on_display)
1229 	{
1230 	    char_u	*kmsg;
1231 
1232 	    kmsg = keep_msg;
1233 	    keep_msg = NULL;
1234 	    /* showmode() will clear keep_msg, but we want to use it anyway */
1235 	    update_screen(0);
1236 	    /* now reset it, otherwise it's put in the history again */
1237 	    keep_msg = kmsg;
1238 	    msg_attr(kmsg, keep_msg_attr);
1239 	    vim_free(kmsg);
1240 	}
1241 	setcursor();
1242 	cursor_on();
1243 	out_flush();
1244 	if (msg_scroll || emsg_on_display)
1245 	    ui_delay(1000L, TRUE);	/* wait at least one second */
1246 	ui_delay(3000L, FALSE);		/* wait up to three seconds */
1247 	State = save_State;
1248 
1249 	msg_scroll = FALSE;
1250 	emsg_on_display = FALSE;
1251     }
1252 
1253     /*
1254      * Finish up after executing a Normal mode command.
1255      */
1256 normal_end:
1257 
1258     msg_nowait = FALSE;
1259 
1260     /* Reset finish_op, in case it was set */
1261 #ifdef CURSOR_SHAPE
1262     c = finish_op;
1263 #endif
1264     finish_op = FALSE;
1265 #ifdef CURSOR_SHAPE
1266     /* Redraw the cursor with another shape, if we were in Operator-pending
1267      * mode or did a replace command. */
1268     if (c || ca.cmdchar == 'r')
1269     {
1270 	ui_cursor_shape();		/* may show different cursor shape */
1271 # ifdef FEAT_MOUSESHAPE
1272 	update_mouseshape(-1);
1273 # endif
1274     }
1275 #endif
1276 
1277 #ifdef FEAT_CMDL_INFO
1278     if (oap->op_type == OP_NOP && oap->regname == 0
1279 # ifdef FEAT_AUTOCMD
1280 	    && ca.cmdchar != K_CURSORHOLD
1281 # endif
1282 	    )
1283 	clear_showcmd();
1284 #endif
1285 
1286     checkpcmark();		/* check if we moved since setting pcmark */
1287     vim_free(ca.searchbuf);
1288 
1289 #ifdef FEAT_MBYTE
1290     if (has_mbyte)
1291 	mb_adjust_cursor();
1292 #endif
1293 
1294 #ifdef FEAT_SCROLLBIND
1295     if (curwin->w_p_scb && toplevel)
1296     {
1297 	validate_cursor();	/* may need to update w_leftcol */
1298 	do_check_scrollbind(TRUE);
1299     }
1300 #endif
1301 
1302 #ifdef FEAT_CURSORBIND
1303     if (curwin->w_p_crb && toplevel)
1304     {
1305 	validate_cursor();	/* may need to update w_leftcol */
1306 	do_check_cursorbind();
1307     }
1308 #endif
1309 
1310     /*
1311      * May restart edit(), if we got here with CTRL-O in Insert mode (but not
1312      * if still inside a mapping that started in Visual mode).
1313      * May switch from Visual to Select mode after CTRL-O command.
1314      */
1315     if (       oap->op_type == OP_NOP
1316 	    && ((restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1317 		|| restart_VIsual_select == 1)
1318 	    && !(ca.retval & CA_COMMAND_BUSY)
1319 	    && stuff_empty()
1320 	    && oap->regname == 0)
1321     {
1322 	if (restart_VIsual_select == 1)
1323 	{
1324 	    VIsual_select = TRUE;
1325 	    showmode();
1326 	    restart_VIsual_select = 0;
1327 	}
1328 	if (restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1329 	    (void)edit(restart_edit, FALSE, 1L);
1330     }
1331 
1332     if (restart_VIsual_select == 2)
1333 	restart_VIsual_select = 1;
1334 
1335     /* Save count before an operator for next time. */
1336     opcount = ca.opcount;
1337 }
1338 
1339 #ifdef FEAT_EVAL
1340 /*
1341  * Set v:count and v:count1 according to "cap".
1342  * Set v:prevcount only when "set_prevcount" is TRUE.
1343  */
1344     static void
1345 set_vcount_ca(cmdarg_T *cap, int *set_prevcount)
1346 {
1347     long count = cap->count0;
1348 
1349     /* multiply with cap->opcount the same way as above */
1350     if (cap->opcount != 0)
1351 	count = cap->opcount * (count == 0 ? 1 : count);
1352     set_vcount(count, count == 0 ? 1 : count, *set_prevcount);
1353     *set_prevcount = FALSE;  /* only set v:prevcount once */
1354 }
1355 #endif
1356 
1357 /*
1358  * Handle an operator after visual mode or when the movement is finished
1359  */
1360     void
1361 do_pending_operator(cmdarg_T *cap, int old_col, int gui_yank)
1362 {
1363     oparg_T	*oap = cap->oap;
1364     pos_T	old_cursor;
1365     int		empty_region_error;
1366     int		restart_edit_save;
1367 #ifdef FEAT_LINEBREAK
1368     int		lbr_saved = curwin->w_p_lbr;
1369 #endif
1370 
1371     /* The visual area is remembered for redo */
1372     static int	    redo_VIsual_mode = NUL; /* 'v', 'V', or Ctrl-V */
1373     static linenr_T redo_VIsual_line_count; /* number of lines */
1374     static colnr_T  redo_VIsual_vcol;	    /* number of cols or end column */
1375     static long	    redo_VIsual_count;	    /* count for Visual operator */
1376     static int	    redo_VIsual_arg;	    /* extra argument */
1377 #ifdef FEAT_VIRTUALEDIT
1378     int		    include_line_break = FALSE;
1379 #endif
1380 
1381 #if defined(FEAT_CLIPBOARD)
1382     /*
1383      * Yank the visual area into the GUI selection register before we operate
1384      * on it and lose it forever.
1385      * Don't do it if a specific register was specified, so that ""x"*P works.
1386      * This could call do_pending_operator() recursively, but that's OK
1387      * because gui_yank will be TRUE for the nested call.
1388      */
1389     if ((clip_star.available || clip_plus.available)
1390 	    && oap->op_type != OP_NOP
1391 	    && !gui_yank
1392 	    && VIsual_active
1393 	    && !redo_VIsual_busy
1394 	    && oap->regname == 0)
1395 	clip_auto_select();
1396 #endif
1397     old_cursor = curwin->w_cursor;
1398 
1399     /*
1400      * If an operation is pending, handle it...
1401      */
1402     if ((finish_op || VIsual_active) && oap->op_type != OP_NOP)
1403     {
1404 #ifdef FEAT_LINEBREAK
1405 	/* Avoid a problem with unwanted linebreaks in block mode. */
1406 	if (curwin->w_p_lbr)
1407 	    curwin->w_valid &= ~VALID_VIRTCOL;
1408 	curwin->w_p_lbr = FALSE;
1409 #endif
1410 	oap->is_VIsual = VIsual_active;
1411 	if (oap->motion_force == 'V')
1412 	    oap->motion_type = MLINE;
1413 	else if (oap->motion_force == 'v')
1414 	{
1415 	    /* If the motion was linewise, "inclusive" will not have been set.
1416 	     * Use "exclusive" to be consistent.  Makes "dvj" work nice. */
1417 	    if (oap->motion_type == MLINE)
1418 		oap->inclusive = FALSE;
1419 	    /* If the motion already was characterwise, toggle "inclusive" */
1420 	    else if (oap->motion_type == MCHAR)
1421 		oap->inclusive = !oap->inclusive;
1422 	    oap->motion_type = MCHAR;
1423 	}
1424 	else if (oap->motion_force == Ctrl_V)
1425 	{
1426 	    /* Change line- or characterwise motion into Visual block mode. */
1427 	    VIsual_active = TRUE;
1428 	    VIsual = oap->start;
1429 	    VIsual_mode = Ctrl_V;
1430 	    VIsual_select = FALSE;
1431 	    VIsual_reselect = FALSE;
1432 	}
1433 
1434 	/* Only redo yank when 'y' flag is in 'cpoptions'. */
1435 	/* Never redo "zf" (define fold). */
1436 	if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1437 		&& ((!VIsual_active || oap->motion_force)
1438 		    /* Also redo Operator-pending Visual mode mappings */
1439 		    || (VIsual_active && cap->cmdchar == ':'
1440 						 && oap->op_type != OP_COLON))
1441 		&& cap->cmdchar != 'D'
1442 #ifdef FEAT_FOLDING
1443 		&& oap->op_type != OP_FOLD
1444 		&& oap->op_type != OP_FOLDOPEN
1445 		&& oap->op_type != OP_FOLDOPENREC
1446 		&& oap->op_type != OP_FOLDCLOSE
1447 		&& oap->op_type != OP_FOLDCLOSEREC
1448 		&& oap->op_type != OP_FOLDDEL
1449 		&& oap->op_type != OP_FOLDDELREC
1450 #endif
1451 		)
1452 	{
1453 	    prep_redo(oap->regname, cap->count0,
1454 		    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1455 		    oap->motion_force, cap->cmdchar, cap->nchar);
1456 	    if (cap->cmdchar == '/' || cap->cmdchar == '?') /* was a search */
1457 	    {
1458 		/*
1459 		 * If 'cpoptions' does not contain 'r', insert the search
1460 		 * pattern to really repeat the same command.
1461 		 */
1462 		if (vim_strchr(p_cpo, CPO_REDO) == NULL)
1463 		    AppendToRedobuffLit(cap->searchbuf, -1);
1464 		AppendToRedobuff(NL_STR);
1465 	    }
1466 	    else if (cap->cmdchar == ':')
1467 	    {
1468 		/* do_cmdline() has stored the first typed line in
1469 		 * "repeat_cmdline".  When several lines are typed repeating
1470 		 * won't be possible. */
1471 		if (repeat_cmdline == NULL)
1472 		    ResetRedobuff();
1473 		else
1474 		{
1475 		    AppendToRedobuffLit(repeat_cmdline, -1);
1476 		    AppendToRedobuff(NL_STR);
1477 		    vim_free(repeat_cmdline);
1478 		    repeat_cmdline = NULL;
1479 		}
1480 	    }
1481 	}
1482 
1483 	if (redo_VIsual_busy)
1484 	{
1485 	    /* Redo of an operation on a Visual area. Use the same size from
1486 	     * redo_VIsual_line_count and redo_VIsual_vcol. */
1487 	    oap->start = curwin->w_cursor;
1488 	    curwin->w_cursor.lnum += redo_VIsual_line_count - 1;
1489 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1490 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1491 	    VIsual_mode = redo_VIsual_mode;
1492 	    if (redo_VIsual_vcol == MAXCOL || VIsual_mode == 'v')
1493 	    {
1494 		if (VIsual_mode == 'v')
1495 		{
1496 		    if (redo_VIsual_line_count <= 1)
1497 		    {
1498 			validate_virtcol();
1499 			curwin->w_curswant =
1500 				     curwin->w_virtcol + redo_VIsual_vcol - 1;
1501 		    }
1502 		    else
1503 			curwin->w_curswant = redo_VIsual_vcol;
1504 		}
1505 		else
1506 		{
1507 		    curwin->w_curswant = MAXCOL;
1508 		}
1509 		coladvance(curwin->w_curswant);
1510 	    }
1511 	    cap->count0 = redo_VIsual_count;
1512 	    if (redo_VIsual_count != 0)
1513 		cap->count1 = redo_VIsual_count;
1514 	    else
1515 		cap->count1 = 1;
1516 	}
1517 	else if (VIsual_active)
1518 	{
1519 	    if (!gui_yank)
1520 	    {
1521 		/* Save the current VIsual area for '< and '> marks, and "gv" */
1522 		curbuf->b_visual.vi_start = VIsual;
1523 		curbuf->b_visual.vi_end = curwin->w_cursor;
1524 		curbuf->b_visual.vi_mode = VIsual_mode;
1525 		if (VIsual_mode_orig != NUL)
1526 		{
1527 		    curbuf->b_visual.vi_mode = VIsual_mode_orig;
1528 		    VIsual_mode_orig = NUL;
1529 		}
1530 		curbuf->b_visual.vi_curswant = curwin->w_curswant;
1531 # ifdef FEAT_EVAL
1532 		curbuf->b_visual_mode_eval = VIsual_mode;
1533 # endif
1534 	    }
1535 
1536 	    /* In Select mode, a linewise selection is operated upon like a
1537 	     * characterwise selection.
1538 	     * Special case: gH<Del> deletes the last line. */
1539 	    if (VIsual_select && VIsual_mode == 'V'
1540 					    && cap->oap->op_type != OP_DELETE)
1541 	    {
1542 		if (lt(VIsual, curwin->w_cursor))
1543 		{
1544 		    VIsual.col = 0;
1545 		    curwin->w_cursor.col =
1546 			       (colnr_T)STRLEN(ml_get(curwin->w_cursor.lnum));
1547 		}
1548 		else
1549 		{
1550 		    curwin->w_cursor.col = 0;
1551 		    VIsual.col = (colnr_T)STRLEN(ml_get(VIsual.lnum));
1552 		}
1553 		VIsual_mode = 'v';
1554 	    }
1555 	    /* If 'selection' is "exclusive", backup one character for
1556 	     * charwise selections. */
1557 	    else if (VIsual_mode == 'v')
1558 	    {
1559 # ifdef FEAT_VIRTUALEDIT
1560 		include_line_break =
1561 # endif
1562 		    unadjust_for_sel();
1563 	    }
1564 
1565 	    oap->start = VIsual;
1566 	    if (VIsual_mode == 'V')
1567 		oap->start.col = 0;
1568 	}
1569 
1570 	/*
1571 	 * Set oap->start to the first position of the operated text, oap->end
1572 	 * to the end of the operated text.  w_cursor is equal to oap->start.
1573 	 */
1574 	if (lt(oap->start, curwin->w_cursor))
1575 	{
1576 #ifdef FEAT_FOLDING
1577 	    /* Include folded lines completely. */
1578 	    if (!VIsual_active)
1579 	    {
1580 		if (hasFolding(oap->start.lnum, &oap->start.lnum, NULL))
1581 		    oap->start.col = 0;
1582 		if (hasFolding(curwin->w_cursor.lnum, NULL,
1583 						      &curwin->w_cursor.lnum))
1584 		    curwin->w_cursor.col = (colnr_T)STRLEN(ml_get_curline());
1585 	    }
1586 #endif
1587 	    oap->end = curwin->w_cursor;
1588 	    curwin->w_cursor = oap->start;
1589 
1590 	    /* w_virtcol may have been updated; if the cursor goes back to its
1591 	     * previous position w_virtcol becomes invalid and isn't updated
1592 	     * automatically. */
1593 	    curwin->w_valid &= ~VALID_VIRTCOL;
1594 	}
1595 	else
1596 	{
1597 #ifdef FEAT_FOLDING
1598 	    /* Include folded lines completely. */
1599 	    if (!VIsual_active && oap->motion_type == MLINE)
1600 	    {
1601 		if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum,
1602 									NULL))
1603 		    curwin->w_cursor.col = 0;
1604 		if (hasFolding(oap->start.lnum, NULL, &oap->start.lnum))
1605 		    oap->start.col = (colnr_T)STRLEN(ml_get(oap->start.lnum));
1606 	    }
1607 #endif
1608 	    oap->end = oap->start;
1609 	    oap->start = curwin->w_cursor;
1610 	}
1611 
1612 	oap->line_count = oap->end.lnum - oap->start.lnum + 1;
1613 
1614 #ifdef FEAT_VIRTUALEDIT
1615 	/* Set "virtual_op" before resetting VIsual_active. */
1616 	virtual_op = virtual_active();
1617 #endif
1618 
1619 	if (VIsual_active || redo_VIsual_busy)
1620 	{
1621 	    get_op_vcol(oap, redo_VIsual_vcol, TRUE);
1622 
1623 	    if (!redo_VIsual_busy && !gui_yank)
1624 	    {
1625 		/*
1626 		 * Prepare to reselect and redo Visual: this is based on the
1627 		 * size of the Visual text
1628 		 */
1629 		resel_VIsual_mode = VIsual_mode;
1630 		if (curwin->w_curswant == MAXCOL)
1631 		    resel_VIsual_vcol = MAXCOL;
1632 		else
1633 		{
1634 		    if (VIsual_mode != Ctrl_V)
1635 			getvvcol(curwin, &(oap->end),
1636 						  NULL, NULL, &oap->end_vcol);
1637 		    if (VIsual_mode == Ctrl_V || oap->line_count <= 1)
1638 		    {
1639 			if (VIsual_mode != Ctrl_V)
1640 			    getvvcol(curwin, &(oap->start),
1641 						&oap->start_vcol, NULL, NULL);
1642 			resel_VIsual_vcol = oap->end_vcol - oap->start_vcol + 1;
1643 		    }
1644 		    else
1645 			resel_VIsual_vcol = oap->end_vcol;
1646 		}
1647 		resel_VIsual_line_count = oap->line_count;
1648 	    }
1649 
1650 	    /* can't redo yank (unless 'y' is in 'cpoptions') and ":" */
1651 	    if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1652 		    && oap->op_type != OP_COLON
1653 #ifdef FEAT_FOLDING
1654 		    && oap->op_type != OP_FOLD
1655 		    && oap->op_type != OP_FOLDOPEN
1656 		    && oap->op_type != OP_FOLDOPENREC
1657 		    && oap->op_type != OP_FOLDCLOSE
1658 		    && oap->op_type != OP_FOLDCLOSEREC
1659 		    && oap->op_type != OP_FOLDDEL
1660 		    && oap->op_type != OP_FOLDDELREC
1661 #endif
1662 		    && oap->motion_force == NUL
1663 		    )
1664 	    {
1665 		/* Prepare for redoing.  Only use the nchar field for "r",
1666 		 * otherwise it might be the second char of the operator. */
1667 		if (cap->cmdchar == 'g' && (cap->nchar == 'n'
1668 							|| cap->nchar == 'N'))
1669 		    prep_redo(oap->regname, cap->count0,
1670 			    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1671 			    oap->motion_force, cap->cmdchar, cap->nchar);
1672 		else if (cap->cmdchar != ':')
1673 		    prep_redo(oap->regname, 0L, NUL, 'v',
1674 					get_op_char(oap->op_type),
1675 					get_extra_op_char(oap->op_type),
1676 					oap->op_type == OP_REPLACE
1677 							  ? cap->nchar : NUL);
1678 		if (!redo_VIsual_busy)
1679 		{
1680 		    redo_VIsual_mode = resel_VIsual_mode;
1681 		    redo_VIsual_vcol = resel_VIsual_vcol;
1682 		    redo_VIsual_line_count = resel_VIsual_line_count;
1683 		    redo_VIsual_count = cap->count0;
1684 		    redo_VIsual_arg = cap->arg;
1685 		}
1686 	    }
1687 
1688 	    /*
1689 	     * oap->inclusive defaults to TRUE.
1690 	     * If oap->end is on a NUL (empty line) oap->inclusive becomes
1691 	     * FALSE.  This makes "d}P" and "v}dP" work the same.
1692 	     */
1693 	    if (oap->motion_force == NUL || oap->motion_type == MLINE)
1694 		oap->inclusive = TRUE;
1695 	    if (VIsual_mode == 'V')
1696 		oap->motion_type = MLINE;
1697 	    else
1698 	    {
1699 		oap->motion_type = MCHAR;
1700 		if (VIsual_mode != Ctrl_V && *ml_get_pos(&(oap->end)) == NUL
1701 #ifdef FEAT_VIRTUALEDIT
1702 			&& (include_line_break || !virtual_op)
1703 #endif
1704 			)
1705 		{
1706 		    oap->inclusive = FALSE;
1707 		    /* Try to include the newline, unless it's an operator
1708 		     * that works on lines only. */
1709 		    if (*p_sel != 'o'
1710 			    && !op_on_lines(oap->op_type)
1711 			    && oap->end.lnum < curbuf->b_ml.ml_line_count)
1712 		    {
1713 			++oap->end.lnum;
1714 			oap->end.col = 0;
1715 #ifdef FEAT_VIRTUALEDIT
1716 			oap->end.coladd = 0;
1717 #endif
1718 			++oap->line_count;
1719 		    }
1720 		}
1721 	    }
1722 
1723 	    redo_VIsual_busy = FALSE;
1724 
1725 	    /*
1726 	     * Switch Visual off now, so screen updating does
1727 	     * not show inverted text when the screen is redrawn.
1728 	     * With OP_YANK and sometimes with OP_COLON and OP_FILTER there is
1729 	     * no screen redraw, so it is done here to remove the inverted
1730 	     * part.
1731 	     */
1732 	    if (!gui_yank)
1733 	    {
1734 		VIsual_active = FALSE;
1735 #ifdef FEAT_MOUSE
1736 		setmouse();
1737 		mouse_dragging = 0;
1738 #endif
1739 		may_clear_cmdline();
1740 		if ((oap->op_type == OP_YANK
1741 			    || oap->op_type == OP_COLON
1742 			    || oap->op_type == OP_FUNCTION
1743 			    || oap->op_type == OP_FILTER)
1744 			&& oap->motion_force == NUL)
1745 		{
1746 #ifdef FEAT_LINEBREAK
1747 		    /* make sure redrawing is correct */
1748 		    curwin->w_p_lbr = lbr_saved;
1749 #endif
1750 		    redraw_curbuf_later(INVERTED);
1751 		}
1752 	    }
1753 	}
1754 
1755 #ifdef FEAT_MBYTE
1756 	/* Include the trailing byte of a multi-byte char. */
1757 	if (has_mbyte && oap->inclusive)
1758 	{
1759 	    int		l;
1760 
1761 	    l = (*mb_ptr2len)(ml_get_pos(&oap->end));
1762 	    if (l > 1)
1763 		oap->end.col += l - 1;
1764 	}
1765 #endif
1766 	curwin->w_set_curswant = TRUE;
1767 
1768 	/*
1769 	 * oap->empty is set when start and end are the same.  The inclusive
1770 	 * flag affects this too, unless yanking and the end is on a NUL.
1771 	 */
1772 	oap->empty = (oap->motion_type == MCHAR
1773 		    && (!oap->inclusive
1774 			|| (oap->op_type == OP_YANK
1775 			    && gchar_pos(&oap->end) == NUL))
1776 		    && equalpos(oap->start, oap->end)
1777 #ifdef FEAT_VIRTUALEDIT
1778 		    && !(virtual_op && oap->start.coladd != oap->end.coladd)
1779 #endif
1780 		    );
1781 	/*
1782 	 * For delete, change and yank, it's an error to operate on an
1783 	 * empty region, when 'E' included in 'cpoptions' (Vi compatible).
1784 	 */
1785 	empty_region_error = (oap->empty
1786 				&& vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL);
1787 
1788 	/* Force a redraw when operating on an empty Visual region, when
1789 	 * 'modifiable is off or creating a fold. */
1790 	if (oap->is_VIsual && (oap->empty || !curbuf->b_p_ma
1791 #ifdef FEAT_FOLDING
1792 		    || oap->op_type == OP_FOLD
1793 #endif
1794 		    ))
1795 	{
1796 #ifdef FEAT_LINEBREAK
1797 	    curwin->w_p_lbr = lbr_saved;
1798 #endif
1799 	    redraw_curbuf_later(INVERTED);
1800 	}
1801 
1802 	/*
1803 	 * If the end of an operator is in column one while oap->motion_type
1804 	 * is MCHAR and oap->inclusive is FALSE, we put op_end after the last
1805 	 * character in the previous line. If op_start is on or before the
1806 	 * first non-blank in the line, the operator becomes linewise
1807 	 * (strange, but that's the way vi does it).
1808 	 */
1809 	if (	   oap->motion_type == MCHAR
1810 		&& oap->inclusive == FALSE
1811 		&& !(cap->retval & CA_NO_ADJ_OP_END)
1812 		&& oap->end.col == 0
1813 		&& (!oap->is_VIsual || *p_sel == 'o')
1814 		&& !oap->block_mode
1815 		&& oap->line_count > 1)
1816 	{
1817 	    oap->end_adjusted = TRUE;	    /* remember that we did this */
1818 	    --oap->line_count;
1819 	    --oap->end.lnum;
1820 	    if (inindent(0))
1821 		oap->motion_type = MLINE;
1822 	    else
1823 	    {
1824 		oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
1825 		if (oap->end.col)
1826 		{
1827 		    --oap->end.col;
1828 		    oap->inclusive = TRUE;
1829 		}
1830 	    }
1831 	}
1832 	else
1833 	    oap->end_adjusted = FALSE;
1834 
1835 	switch (oap->op_type)
1836 	{
1837 	case OP_LSHIFT:
1838 	case OP_RSHIFT:
1839 	    op_shift(oap, TRUE, oap->is_VIsual ? (int)cap->count1 : 1);
1840 	    auto_format(FALSE, TRUE);
1841 	    break;
1842 
1843 	case OP_JOIN_NS:
1844 	case OP_JOIN:
1845 	    if (oap->line_count < 2)
1846 		oap->line_count = 2;
1847 	    if (curwin->w_cursor.lnum + oap->line_count - 1 >
1848 						   curbuf->b_ml.ml_line_count)
1849 		beep_flush();
1850 	    else
1851 	    {
1852 		(void)do_join(oap->line_count, oap->op_type == OP_JOIN,
1853 							    TRUE, TRUE, TRUE);
1854 		auto_format(FALSE, TRUE);
1855 	    }
1856 	    break;
1857 
1858 	case OP_DELETE:
1859 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1860 	    if (empty_region_error)
1861 	    {
1862 		vim_beep(BO_OPER);
1863 		CancelRedo();
1864 	    }
1865 	    else
1866 	    {
1867 		(void)op_delete(oap);
1868 		if (oap->motion_type == MLINE && has_format_option(FO_AUTO))
1869 		    u_save_cursor();	    /* cursor line wasn't saved yet */
1870 		auto_format(FALSE, TRUE);
1871 	    }
1872 	    break;
1873 
1874 	case OP_YANK:
1875 	    if (empty_region_error)
1876 	    {
1877 		if (!gui_yank)
1878 		{
1879 		    vim_beep(BO_OPER);
1880 		    CancelRedo();
1881 		}
1882 	    }
1883 	    else
1884 	    {
1885 #ifdef FEAT_LINEBREAK
1886 		curwin->w_p_lbr = lbr_saved;
1887 #endif
1888 		(void)op_yank(oap, FALSE, !gui_yank);
1889 	    }
1890 	    check_cursor_col();
1891 	    break;
1892 
1893 	case OP_CHANGE:
1894 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1895 	    if (empty_region_error)
1896 	    {
1897 		vim_beep(BO_OPER);
1898 		CancelRedo();
1899 	    }
1900 	    else
1901 	    {
1902 		/* This is a new edit command, not a restart.  Need to
1903 		 * remember it to make 'insertmode' work with mappings for
1904 		 * Visual mode.  But do this only once and not when typed and
1905 		 * 'insertmode' isn't set. */
1906 		if (p_im || !KeyTyped)
1907 		    restart_edit_save = restart_edit;
1908 		else
1909 		    restart_edit_save = 0;
1910 		restart_edit = 0;
1911 #ifdef FEAT_LINEBREAK
1912 		/* Restore linebreak, so that when the user edits it looks as
1913 		 * before. */
1914 		if (curwin->w_p_lbr != lbr_saved)
1915 		{
1916 		    curwin->w_p_lbr = lbr_saved;
1917 		    get_op_vcol(oap, redo_VIsual_mode, FALSE);
1918 		}
1919 #endif
1920 		/* Reset finish_op now, don't want it set inside edit(). */
1921 		finish_op = FALSE;
1922 		if (op_change(oap))	/* will call edit() */
1923 		    cap->retval |= CA_COMMAND_BUSY;
1924 		if (restart_edit == 0)
1925 		    restart_edit = restart_edit_save;
1926 	    }
1927 	    break;
1928 
1929 	case OP_FILTER:
1930 	    if (vim_strchr(p_cpo, CPO_FILTER) != NULL)
1931 		AppendToRedobuff((char_u *)"!\r");  /* use any last used !cmd */
1932 	    else
1933 		bangredo = TRUE;    /* do_bang() will put cmd in redo buffer */
1934 
1935 	case OP_INDENT:
1936 	case OP_COLON:
1937 
1938 #if defined(FEAT_LISP) || defined(FEAT_CINDENT)
1939 	    /*
1940 	     * If 'equalprg' is empty, do the indenting internally.
1941 	     */
1942 	    if (oap->op_type == OP_INDENT && *get_equalprg() == NUL)
1943 	    {
1944 # ifdef FEAT_LISP
1945 		if (curbuf->b_p_lisp)
1946 		{
1947 		    op_reindent(oap, get_lisp_indent);
1948 		    break;
1949 		}
1950 # endif
1951 # ifdef FEAT_CINDENT
1952 		op_reindent(oap,
1953 #  ifdef FEAT_EVAL
1954 			*curbuf->b_p_inde != NUL ? get_expr_indent :
1955 #  endif
1956 			    get_c_indent);
1957 		break;
1958 # endif
1959 	    }
1960 #endif
1961 
1962 	    op_colon(oap);
1963 	    break;
1964 
1965 	case OP_TILDE:
1966 	case OP_UPPER:
1967 	case OP_LOWER:
1968 	case OP_ROT13:
1969 	    if (empty_region_error)
1970 	    {
1971 		vim_beep(BO_OPER);
1972 		CancelRedo();
1973 	    }
1974 	    else
1975 		op_tilde(oap);
1976 	    check_cursor_col();
1977 	    break;
1978 
1979 	case OP_FORMAT:
1980 #if defined(FEAT_EVAL)
1981 	    if (*curbuf->b_p_fex != NUL)
1982 		op_formatexpr(oap);	/* use expression */
1983 	    else
1984 #endif
1985 		if (*p_fp != NUL)
1986 		op_colon(oap);		/* use external command */
1987 	    else
1988 		op_format(oap, FALSE);	/* use internal function */
1989 	    break;
1990 
1991 	case OP_FORMAT2:
1992 	    op_format(oap, TRUE);	/* use internal function */
1993 	    break;
1994 
1995 	case OP_FUNCTION:
1996 	    op_function(oap);		/* call 'operatorfunc' */
1997 	    break;
1998 
1999 	case OP_INSERT:
2000 	case OP_APPEND:
2001 	    VIsual_reselect = FALSE;	/* don't reselect now */
2002 #ifdef FEAT_VISUALEXTRA
2003 	    if (empty_region_error)
2004 	    {
2005 		vim_beep(BO_OPER);
2006 		CancelRedo();
2007 	    }
2008 	    else
2009 	    {
2010 		/* This is a new edit command, not a restart.  Need to
2011 		 * remember it to make 'insertmode' work with mappings for
2012 		 * Visual mode.  But do this only once. */
2013 		restart_edit_save = restart_edit;
2014 		restart_edit = 0;
2015 #ifdef FEAT_LINEBREAK
2016 		/* Restore linebreak, so that when the user edits it looks as
2017 		 * before. */
2018 		if (curwin->w_p_lbr != lbr_saved)
2019 		{
2020 		    curwin->w_p_lbr = lbr_saved;
2021 		    get_op_vcol(oap, redo_VIsual_mode, FALSE);
2022 		}
2023 #endif
2024 		op_insert(oap, cap->count1);
2025 #ifdef FEAT_LINEBREAK
2026 		/* Reset linebreak, so that formatting works correctly. */
2027 		curwin->w_p_lbr = FALSE;
2028 #endif
2029 
2030 		/* TODO: when inserting in several lines, should format all
2031 		 * the lines. */
2032 		auto_format(FALSE, TRUE);
2033 
2034 		if (restart_edit == 0)
2035 		    restart_edit = restart_edit_save;
2036 	    }
2037 #else
2038 	    vim_beep(BO_OPER);
2039 #endif
2040 	    break;
2041 
2042 	case OP_REPLACE:
2043 	    VIsual_reselect = FALSE;	/* don't reselect now */
2044 #ifdef FEAT_VISUALEXTRA
2045 	    if (empty_region_error)
2046 #endif
2047 	    {
2048 		vim_beep(BO_OPER);
2049 		CancelRedo();
2050 	    }
2051 #ifdef FEAT_VISUALEXTRA
2052 	    else
2053 	    {
2054 # ifdef FEAT_LINEBREAK
2055 		/* Restore linebreak, so that when the user edits it looks as
2056 		 * before. */
2057 		if (curwin->w_p_lbr != lbr_saved)
2058 		{
2059 		    curwin->w_p_lbr = lbr_saved;
2060 		    get_op_vcol(oap, redo_VIsual_mode, FALSE);
2061 		}
2062 # endif
2063 		op_replace(oap, cap->nchar);
2064 	    }
2065 #endif
2066 	    break;
2067 
2068 #ifdef FEAT_FOLDING
2069 	case OP_FOLD:
2070 	    VIsual_reselect = FALSE;	/* don't reselect now */
2071 	    foldCreate(oap->start.lnum, oap->end.lnum);
2072 	    break;
2073 
2074 	case OP_FOLDOPEN:
2075 	case OP_FOLDOPENREC:
2076 	case OP_FOLDCLOSE:
2077 	case OP_FOLDCLOSEREC:
2078 	    VIsual_reselect = FALSE;	/* don't reselect now */
2079 	    opFoldRange(oap->start.lnum, oap->end.lnum,
2080 		    oap->op_type == OP_FOLDOPEN
2081 					    || oap->op_type == OP_FOLDOPENREC,
2082 		    oap->op_type == OP_FOLDOPENREC
2083 					  || oap->op_type == OP_FOLDCLOSEREC,
2084 					  oap->is_VIsual);
2085 	    break;
2086 
2087 	case OP_FOLDDEL:
2088 	case OP_FOLDDELREC:
2089 	    VIsual_reselect = FALSE;	/* don't reselect now */
2090 	    deleteFold(oap->start.lnum, oap->end.lnum,
2091 			       oap->op_type == OP_FOLDDELREC, oap->is_VIsual);
2092 	    break;
2093 #endif
2094 	case OP_NR_ADD:
2095 	case OP_NR_SUB:
2096 	    if (empty_region_error)
2097 	    {
2098 		vim_beep(BO_OPER);
2099 		CancelRedo();
2100 	    }
2101 	    else
2102 	    {
2103 		VIsual_active = TRUE;
2104 #ifdef FEAT_LINEBREAK
2105 		curwin->w_p_lbr = lbr_saved;
2106 #endif
2107 		op_addsub(oap, cap->count1, redo_VIsual_arg);
2108 		VIsual_active = FALSE;
2109 	    }
2110 	    check_cursor_col();
2111 	    break;
2112 	default:
2113 	    clearopbeep(oap);
2114 	}
2115 #ifdef FEAT_VIRTUALEDIT
2116 	virtual_op = MAYBE;
2117 #endif
2118 	if (!gui_yank)
2119 	{
2120 	    /*
2121 	     * if 'sol' not set, go back to old column for some commands
2122 	     */
2123 	    if (!p_sol && oap->motion_type == MLINE && !oap->end_adjusted
2124 		    && (oap->op_type == OP_LSHIFT || oap->op_type == OP_RSHIFT
2125 						|| oap->op_type == OP_DELETE))
2126 	    {
2127 #ifdef FEAT_LINEBREAK
2128 		curwin->w_p_lbr = FALSE;
2129 #endif
2130 		coladvance(curwin->w_curswant = old_col);
2131 	    }
2132 	}
2133 	else
2134 	{
2135 	    curwin->w_cursor = old_cursor;
2136 	}
2137 	oap->block_mode = FALSE;
2138 	clearop(oap);
2139     }
2140 #ifdef FEAT_LINEBREAK
2141     curwin->w_p_lbr = lbr_saved;
2142 #endif
2143 }
2144 
2145 /*
2146  * Handle indent and format operators and visual mode ":".
2147  */
2148     static void
2149 op_colon(oparg_T *oap)
2150 {
2151     stuffcharReadbuff(':');
2152     if (oap->is_VIsual)
2153 	stuffReadbuff((char_u *)"'<,'>");
2154     else
2155     {
2156 	/*
2157 	 * Make the range look nice, so it can be repeated.
2158 	 */
2159 	if (oap->start.lnum == curwin->w_cursor.lnum)
2160 	    stuffcharReadbuff('.');
2161 	else
2162 	    stuffnumReadbuff((long)oap->start.lnum);
2163 	if (oap->end.lnum != oap->start.lnum)
2164 	{
2165 	    stuffcharReadbuff(',');
2166 	    if (oap->end.lnum == curwin->w_cursor.lnum)
2167 		stuffcharReadbuff('.');
2168 	    else if (oap->end.lnum == curbuf->b_ml.ml_line_count)
2169 		stuffcharReadbuff('$');
2170 	    else if (oap->start.lnum == curwin->w_cursor.lnum)
2171 	    {
2172 		stuffReadbuff((char_u *)".+");
2173 		stuffnumReadbuff((long)oap->line_count - 1);
2174 	    }
2175 	    else
2176 		stuffnumReadbuff((long)oap->end.lnum);
2177 	}
2178     }
2179     if (oap->op_type != OP_COLON)
2180 	stuffReadbuff((char_u *)"!");
2181     if (oap->op_type == OP_INDENT)
2182     {
2183 #ifndef FEAT_CINDENT
2184 	if (*get_equalprg() == NUL)
2185 	    stuffReadbuff((char_u *)"indent");
2186 	else
2187 #endif
2188 	    stuffReadbuff(get_equalprg());
2189 	stuffReadbuff((char_u *)"\n");
2190     }
2191     else if (oap->op_type == OP_FORMAT)
2192     {
2193 	if (*p_fp == NUL)
2194 	    stuffReadbuff((char_u *)"fmt");
2195 	else
2196 	    stuffReadbuff(p_fp);
2197 	stuffReadbuff((char_u *)"\n']");
2198     }
2199 
2200     /*
2201      * do_cmdline() does the rest
2202      */
2203 }
2204 
2205 /*
2206  * Handle the "g@" operator: call 'operatorfunc'.
2207  */
2208     static void
2209 op_function(oparg_T *oap UNUSED)
2210 {
2211 #ifdef FEAT_EVAL
2212     char_u	*(argv[1]);
2213 # ifdef FEAT_VIRTUALEDIT
2214     int		save_virtual_op = virtual_op;
2215 # endif
2216 
2217     if (*p_opfunc == NUL)
2218 	EMSG(_("E774: 'operatorfunc' is empty"));
2219     else
2220     {
2221 	/* Set '[ and '] marks to text to be operated on. */
2222 	curbuf->b_op_start = oap->start;
2223 	curbuf->b_op_end = oap->end;
2224 	if (oap->motion_type != MLINE && !oap->inclusive)
2225 	    /* Exclude the end position. */
2226 	    decl(&curbuf->b_op_end);
2227 
2228 	if (oap->block_mode)
2229 	    argv[0] = (char_u *)"block";
2230 	else if (oap->motion_type == MLINE)
2231 	    argv[0] = (char_u *)"line";
2232 	else
2233 	    argv[0] = (char_u *)"char";
2234 
2235 # ifdef FEAT_VIRTUALEDIT
2236 	/* Reset virtual_op so that 'virtualedit' can be changed in the
2237 	 * function. */
2238 	virtual_op = MAYBE;
2239 # endif
2240 
2241 	(void)call_func_retnr(p_opfunc, 1, argv, FALSE);
2242 
2243 # ifdef FEAT_VIRTUALEDIT
2244 	virtual_op = save_virtual_op;
2245 # endif
2246     }
2247 #else
2248     EMSG(_("E775: Eval feature not available"));
2249 #endif
2250 }
2251 
2252 #if defined(FEAT_MOUSE) || defined(PROTO)
2253 /*
2254  * Do the appropriate action for the current mouse click in the current mode.
2255  * Not used for Command-line mode.
2256  *
2257  * Normal Mode:
2258  * event	 modi-	position      visual	   change   action
2259  *		 fier	cursor			   window
2260  * left press	  -	yes	    end		    yes
2261  * left press	  C	yes	    end		    yes	    "^]" (2)
2262  * left press	  S	yes	    end		    yes	    "*" (2)
2263  * left drag	  -	yes	start if moved	    no
2264  * left relse	  -	yes	start if moved	    no
2265  * middle press	  -	yes	 if not active	    no	    put register
2266  * middle press	  -	yes	 if active	    no	    yank and put
2267  * right press	  -	yes	start or extend	    yes
2268  * right press	  S	yes	no change	    yes	    "#" (2)
2269  * right drag	  -	yes	extend		    no
2270  * right relse	  -	yes	extend		    no
2271  *
2272  * Insert or Replace Mode:
2273  * event	 modi-	position      visual	   change   action
2274  *		 fier	cursor			   window
2275  * left press	  -	yes	(cannot be active)  yes
2276  * left press	  C	yes	(cannot be active)  yes	    "CTRL-O^]" (2)
2277  * left press	  S	yes	(cannot be active)  yes	    "CTRL-O*" (2)
2278  * left drag	  -	yes	start or extend (1) no	    CTRL-O (1)
2279  * left relse	  -	yes	start or extend (1) no	    CTRL-O (1)
2280  * middle press	  -	no	(cannot be active)  no	    put register
2281  * right press	  -	yes	start or extend	    yes	    CTRL-O
2282  * right press	  S	yes	(cannot be active)  yes	    "CTRL-O#" (2)
2283  *
2284  * (1) only if mouse pointer moved since press
2285  * (2) only if click is in same buffer
2286  *
2287  * Return TRUE if start_arrow() should be called for edit mode.
2288  */
2289     int
2290 do_mouse(
2291     oparg_T	*oap,		/* operator argument, can be NULL */
2292     int		c,		/* K_LEFTMOUSE, etc */
2293     int		dir,		/* Direction to 'put' if necessary */
2294     long	count,
2295     int		fixindent)	/* PUT_FIXINDENT if fixing indent necessary */
2296 {
2297     static int	do_always = FALSE;	/* ignore 'mouse' setting next time */
2298     static int	got_click = FALSE;	/* got a click some time back */
2299 
2300     int		which_button;	/* MOUSE_LEFT, _MIDDLE or _RIGHT */
2301     int		is_click;	/* If FALSE it's a drag or release event */
2302     int		is_drag;	/* If TRUE it's a drag event */
2303     int		jump_flags = 0;	/* flags for jump_to_mouse() */
2304     pos_T	start_visual;
2305     int		moved;		/* Has cursor moved? */
2306     int		in_status_line;	/* mouse in status line */
2307 #ifdef FEAT_WINDOWS
2308     static int	in_tab_line = FALSE; /* mouse clicked in tab line */
2309     int		in_sep_line;	/* mouse in vertical separator line */
2310 #endif
2311     int		c1, c2;
2312 #if defined(FEAT_FOLDING)
2313     pos_T	save_cursor;
2314 #endif
2315     win_T	*old_curwin = curwin;
2316     static pos_T orig_cursor;
2317     colnr_T	leftcol, rightcol;
2318     pos_T	end_visual;
2319     int		diff;
2320     int		old_active = VIsual_active;
2321     int		old_mode = VIsual_mode;
2322     int		regname;
2323 
2324 #if defined(FEAT_FOLDING)
2325     save_cursor = curwin->w_cursor;
2326 #endif
2327 
2328     /*
2329      * When GUI is active, always recognize mouse events, otherwise:
2330      * - Ignore mouse event in normal mode if 'mouse' doesn't include 'n'.
2331      * - Ignore mouse event in visual mode if 'mouse' doesn't include 'v'.
2332      * - For command line and insert mode 'mouse' is checked before calling
2333      *	 do_mouse().
2334      */
2335     if (do_always)
2336 	do_always = FALSE;
2337     else
2338 #ifdef FEAT_GUI
2339 	if (!gui.in_use)
2340 #endif
2341 	{
2342 	    if (VIsual_active)
2343 	    {
2344 		if (!mouse_has(MOUSE_VISUAL))
2345 		    return FALSE;
2346 	    }
2347 	    else if (State == NORMAL && !mouse_has(MOUSE_NORMAL))
2348 		return FALSE;
2349 	}
2350 
2351     for (;;)
2352     {
2353 	which_button = get_mouse_button(KEY2TERMCAP1(c), &is_click, &is_drag);
2354 	if (is_drag)
2355 	{
2356 	    /* If the next character is the same mouse event then use that
2357 	     * one. Speeds up dragging the status line. */
2358 	    if (vpeekc() != NUL)
2359 	    {
2360 		int nc;
2361 		int save_mouse_row = mouse_row;
2362 		int save_mouse_col = mouse_col;
2363 
2364 		/* Need to get the character, peeking doesn't get the actual
2365 		 * one. */
2366 		nc = safe_vgetc();
2367 		if (c == nc)
2368 		    continue;
2369 		vungetc(nc);
2370 		mouse_row = save_mouse_row;
2371 		mouse_col = save_mouse_col;
2372 	    }
2373 	}
2374 	break;
2375     }
2376 
2377 #ifdef FEAT_MOUSESHAPE
2378     /* May have stopped dragging the status or separator line.  The pointer is
2379      * most likely still on the status or separator line. */
2380     if (!is_drag && drag_status_line)
2381     {
2382 	drag_status_line = FALSE;
2383 	update_mouseshape(SHAPE_IDX_STATUS);
2384     }
2385     if (!is_drag && drag_sep_line)
2386     {
2387 	drag_sep_line = FALSE;
2388 	update_mouseshape(SHAPE_IDX_VSEP);
2389     }
2390 #endif
2391 
2392     /*
2393      * Ignore drag and release events if we didn't get a click.
2394      */
2395     if (is_click)
2396 	got_click = TRUE;
2397     else
2398     {
2399 	if (!got_click)			/* didn't get click, ignore */
2400 	    return FALSE;
2401 	if (!is_drag)			/* release, reset got_click */
2402 	{
2403 	    got_click = FALSE;
2404 #ifdef FEAT_WINDOWS
2405 	    if (in_tab_line)
2406 	    {
2407 		in_tab_line = FALSE;
2408 		return FALSE;
2409 	    }
2410 #endif
2411 	}
2412     }
2413 
2414     /*
2415      * CTRL right mouse button does CTRL-T
2416      */
2417     if (is_click && (mod_mask & MOD_MASK_CTRL) && which_button == MOUSE_RIGHT)
2418     {
2419 	if (State & INSERT)
2420 	    stuffcharReadbuff(Ctrl_O);
2421 	if (count > 1)
2422 	    stuffnumReadbuff(count);
2423 	stuffcharReadbuff(Ctrl_T);
2424 	got_click = FALSE;		/* ignore drag&release now */
2425 	return FALSE;
2426     }
2427 
2428     /*
2429      * CTRL only works with left mouse button
2430      */
2431     if ((mod_mask & MOD_MASK_CTRL) && which_button != MOUSE_LEFT)
2432 	return FALSE;
2433 
2434     /*
2435      * When a modifier is down, ignore drag and release events, as well as
2436      * multiple clicks and the middle mouse button.
2437      * Accept shift-leftmouse drags when 'mousemodel' is "popup.*".
2438      */
2439     if ((mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL | MOD_MASK_ALT
2440 							     | MOD_MASK_META))
2441 	    && (!is_click
2442 		|| (mod_mask & MOD_MASK_MULTI_CLICK)
2443 		|| which_button == MOUSE_MIDDLE)
2444 	    && !((mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT))
2445 		&& mouse_model_popup()
2446 		&& which_button == MOUSE_LEFT)
2447 	    && !((mod_mask & MOD_MASK_ALT)
2448 		&& !mouse_model_popup()
2449 		&& which_button == MOUSE_RIGHT)
2450 	    )
2451 	return FALSE;
2452 
2453     /*
2454      * If the button press was used as the movement command for an operator
2455      * (eg "d<MOUSE>"), or it is the middle button that is held down, ignore
2456      * drag/release events.
2457      */
2458     if (!is_click && which_button == MOUSE_MIDDLE)
2459 	return FALSE;
2460 
2461     if (oap != NULL)
2462 	regname = oap->regname;
2463     else
2464 	regname = 0;
2465 
2466     /*
2467      * Middle mouse button does a 'put' of the selected text
2468      */
2469     if (which_button == MOUSE_MIDDLE)
2470     {
2471 	if (State == NORMAL)
2472 	{
2473 	    /*
2474 	     * If an operator was pending, we don't know what the user wanted
2475 	     * to do. Go back to normal mode: Clear the operator and beep().
2476 	     */
2477 	    if (oap != NULL && oap->op_type != OP_NOP)
2478 	    {
2479 		clearopbeep(oap);
2480 		return FALSE;
2481 	    }
2482 
2483 	    /*
2484 	     * If visual was active, yank the highlighted text and put it
2485 	     * before the mouse pointer position.
2486 	     * In Select mode replace the highlighted text with the clipboard.
2487 	     */
2488 	    if (VIsual_active)
2489 	    {
2490 		if (VIsual_select)
2491 		{
2492 		    stuffcharReadbuff(Ctrl_G);
2493 		    stuffReadbuff((char_u *)"\"+p");
2494 		}
2495 		else
2496 		{
2497 		    stuffcharReadbuff('y');
2498 		    stuffcharReadbuff(K_MIDDLEMOUSE);
2499 		}
2500 		do_always = TRUE;	/* ignore 'mouse' setting next time */
2501 		return FALSE;
2502 	    }
2503 	    /*
2504 	     * The rest is below jump_to_mouse()
2505 	     */
2506 	}
2507 
2508 	else if ((State & INSERT) == 0)
2509 	    return FALSE;
2510 
2511 	/*
2512 	 * Middle click in insert mode doesn't move the mouse, just insert the
2513 	 * contents of a register.  '.' register is special, can't insert that
2514 	 * with do_put().
2515 	 * Also paste at the cursor if the current mode isn't in 'mouse' (only
2516 	 * happens for the GUI).
2517 	 */
2518 	if ((State & INSERT) || !mouse_has(MOUSE_NORMAL))
2519 	{
2520 	    if (regname == '.')
2521 		insert_reg(regname, TRUE);
2522 	    else
2523 	    {
2524 #ifdef FEAT_CLIPBOARD
2525 		if (clip_star.available && regname == 0)
2526 		    regname = '*';
2527 #endif
2528 		if ((State & REPLACE_FLAG) && !yank_register_mline(regname))
2529 		    insert_reg(regname, TRUE);
2530 		else
2531 		{
2532 		    do_put(regname, BACKWARD, 1L, fixindent | PUT_CURSEND);
2533 
2534 		    /* Repeat it with CTRL-R CTRL-O r or CTRL-R CTRL-P r */
2535 		    AppendCharToRedobuff(Ctrl_R);
2536 		    AppendCharToRedobuff(fixindent ? Ctrl_P : Ctrl_O);
2537 		    AppendCharToRedobuff(regname == 0 ? '"' : regname);
2538 		}
2539 	    }
2540 	    return FALSE;
2541 	}
2542     }
2543 
2544     /* When dragging or button-up stay in the same window. */
2545     if (!is_click)
2546 	jump_flags |= MOUSE_FOCUS | MOUSE_DID_MOVE;
2547 
2548     start_visual.lnum = 0;
2549 
2550 #ifdef FEAT_WINDOWS
2551     /* Check for clicking in the tab page line. */
2552     if (mouse_row == 0 && firstwin->w_winrow > 0)
2553     {
2554 	if (is_drag)
2555 	{
2556 	    if (in_tab_line)
2557 	    {
2558 		c1 = TabPageIdxs[mouse_col];
2559 		tabpage_move(c1 <= 0 ? 9999 : c1 < tabpage_index(curtab)
2560 								? c1 - 1 : c1);
2561 	    }
2562 	    return FALSE;
2563 	}
2564 
2565 	/* click in a tab selects that tab page */
2566 	if (is_click
2567 # ifdef FEAT_CMDWIN
2568 		&& cmdwin_type == 0
2569 # endif
2570 		&& mouse_col < Columns)
2571 	{
2572 	    in_tab_line = TRUE;
2573 	    c1 = TabPageIdxs[mouse_col];
2574 	    if (c1 >= 0)
2575 	    {
2576 		if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2577 		{
2578 		    /* double click opens new page */
2579 		    end_visual_mode();
2580 		    tabpage_new();
2581 		    tabpage_move(c1 == 0 ? 9999 : c1 - 1);
2582 		}
2583 		else
2584 		{
2585 		    /* Go to specified tab page, or next one if not clicking
2586 		     * on a label. */
2587 		    goto_tabpage(c1);
2588 
2589 		    /* It's like clicking on the status line of a window. */
2590 		    if (curwin != old_curwin)
2591 			end_visual_mode();
2592 		}
2593 	    }
2594 	    else if (c1 < 0)
2595 	    {
2596 		tabpage_T	*tp;
2597 
2598 		/* Close the current or specified tab page. */
2599 		if (c1 == -999)
2600 		    tp = curtab;
2601 		else
2602 		    tp = find_tabpage(-c1);
2603 		if (tp == curtab)
2604 		{
2605 		    if (first_tabpage->tp_next != NULL)
2606 			tabpage_close(FALSE);
2607 		}
2608 		else if (tp != NULL)
2609 		    tabpage_close_other(tp, FALSE);
2610 	    }
2611 	}
2612 	return TRUE;
2613     }
2614     else if (is_drag && in_tab_line)
2615     {
2616 	c1 = TabPageIdxs[mouse_col];
2617 	tabpage_move(c1 <= 0 ? 9999 : c1 - 1);
2618 	return FALSE;
2619     }
2620 
2621 #endif
2622 
2623     /*
2624      * When 'mousemodel' is "popup" or "popup_setpos", translate mouse events:
2625      * right button up   -> pop-up menu
2626      * shift-left button -> right button
2627      * alt-left button   -> alt-right button
2628      */
2629     if (mouse_model_popup())
2630     {
2631 	if (which_button == MOUSE_RIGHT
2632 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2633 	{
2634 	    /*
2635 	     * NOTE: Ignore right button down and drag mouse events.
2636 	     * Windows only shows the popup menu on the button up event.
2637 	     */
2638 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) \
2639 			  || defined(FEAT_GUI_PHOTON) || defined(FEAT_GUI_MAC)
2640 	    if (!is_click)
2641 		return FALSE;
2642 #endif
2643 #if defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN)
2644 	    if (is_click || is_drag)
2645 		return FALSE;
2646 #endif
2647 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) \
2648 	    || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \
2649 	    || defined(FEAT_GUI_MAC) || defined(FEAT_GUI_PHOTON)
2650 	    if (gui.in_use)
2651 	    {
2652 		jump_flags = 0;
2653 		if (STRCMP(p_mousem, "popup_setpos") == 0)
2654 		{
2655 		    /* First set the cursor position before showing the popup
2656 		     * menu. */
2657 		    if (VIsual_active)
2658 		    {
2659 			pos_T    m_pos;
2660 
2661 			/*
2662 			 * set MOUSE_MAY_STOP_VIS if we are outside the
2663 			 * selection or the current window (might have false
2664 			 * negative here)
2665 			 */
2666 			if (mouse_row < W_WINROW(curwin)
2667 			     || mouse_row
2668 				      > (W_WINROW(curwin) + curwin->w_height))
2669 			    jump_flags = MOUSE_MAY_STOP_VIS;
2670 			else if (get_fpos_of_mouse(&m_pos) != IN_BUFFER)
2671 			    jump_flags = MOUSE_MAY_STOP_VIS;
2672 			else
2673 			{
2674 			    if ((lt(curwin->w_cursor, VIsual)
2675 					&& (lt(m_pos, curwin->w_cursor)
2676 					    || lt(VIsual, m_pos)))
2677 				    || (lt(VIsual, curwin->w_cursor)
2678 					&& (lt(m_pos, VIsual)
2679 					    || lt(curwin->w_cursor, m_pos))))
2680 			    {
2681 				jump_flags = MOUSE_MAY_STOP_VIS;
2682 			    }
2683 			    else if (VIsual_mode == Ctrl_V)
2684 			    {
2685 				getvcols(curwin, &curwin->w_cursor, &VIsual,
2686 							 &leftcol, &rightcol);
2687 				getvcol(curwin, &m_pos, NULL, &m_pos.col, NULL);
2688 				if (m_pos.col < leftcol || m_pos.col > rightcol)
2689 				    jump_flags = MOUSE_MAY_STOP_VIS;
2690 			    }
2691 			}
2692 		    }
2693 		    else
2694 			jump_flags = MOUSE_MAY_STOP_VIS;
2695 		}
2696 		if (jump_flags)
2697 		{
2698 		    jump_flags = jump_to_mouse(jump_flags, NULL, which_button);
2699 		    update_curbuf(VIsual_active ? INVERTED : VALID);
2700 		    setcursor();
2701 		    out_flush();    /* Update before showing popup menu */
2702 		}
2703 # ifdef FEAT_MENU
2704 		gui_show_popupmenu();
2705 # endif
2706 		return (jump_flags & CURSOR_MOVED) != 0;
2707 	    }
2708 	    else
2709 		return FALSE;
2710 #else
2711 	    return FALSE;
2712 #endif
2713 	}
2714 	if (which_button == MOUSE_LEFT
2715 				&& (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT)))
2716 	{
2717 	    which_button = MOUSE_RIGHT;
2718 	    mod_mask &= ~MOD_MASK_SHIFT;
2719 	}
2720     }
2721 
2722     if ((State & (NORMAL | INSERT))
2723 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2724     {
2725 	if (which_button == MOUSE_LEFT)
2726 	{
2727 	    if (is_click)
2728 	    {
2729 		/* stop Visual mode for a left click in a window, but not when
2730 		 * on a status line */
2731 		if (VIsual_active)
2732 		    jump_flags |= MOUSE_MAY_STOP_VIS;
2733 	    }
2734 	    else if (mouse_has(MOUSE_VISUAL))
2735 		jump_flags |= MOUSE_MAY_VIS;
2736 	}
2737 	else if (which_button == MOUSE_RIGHT)
2738 	{
2739 	    if (is_click && VIsual_active)
2740 	    {
2741 		/*
2742 		 * Remember the start and end of visual before moving the
2743 		 * cursor.
2744 		 */
2745 		if (lt(curwin->w_cursor, VIsual))
2746 		{
2747 		    start_visual = curwin->w_cursor;
2748 		    end_visual = VIsual;
2749 		}
2750 		else
2751 		{
2752 		    start_visual = VIsual;
2753 		    end_visual = curwin->w_cursor;
2754 		}
2755 	    }
2756 	    jump_flags |= MOUSE_FOCUS;
2757 	    if (mouse_has(MOUSE_VISUAL))
2758 		jump_flags |= MOUSE_MAY_VIS;
2759 	}
2760     }
2761 
2762     /*
2763      * If an operator is pending, ignore all drags and releases until the
2764      * next mouse click.
2765      */
2766     if (!is_drag && oap != NULL && oap->op_type != OP_NOP)
2767     {
2768 	got_click = FALSE;
2769 	oap->motion_type = MCHAR;
2770     }
2771 
2772     /* When releasing the button let jump_to_mouse() know. */
2773     if (!is_click && !is_drag)
2774 	jump_flags |= MOUSE_RELEASED;
2775 
2776     /*
2777      * JUMP!
2778      */
2779     jump_flags = jump_to_mouse(jump_flags,
2780 			oap == NULL ? NULL : &(oap->inclusive), which_button);
2781     moved = (jump_flags & CURSOR_MOVED);
2782     in_status_line = (jump_flags & IN_STATUS_LINE);
2783 #ifdef FEAT_WINDOWS
2784     in_sep_line = (jump_flags & IN_SEP_LINE);
2785 #endif
2786 
2787 #ifdef FEAT_NETBEANS_INTG
2788     if (isNetbeansBuffer(curbuf)
2789 			    && !(jump_flags & (IN_STATUS_LINE | IN_SEP_LINE)))
2790     {
2791 	int key = KEY2TERMCAP1(c);
2792 
2793 	if (key == (int)KE_LEFTRELEASE || key == (int)KE_MIDDLERELEASE
2794 					       || key == (int)KE_RIGHTRELEASE)
2795 	    netbeans_button_release(which_button);
2796     }
2797 #endif
2798 
2799     /* When jumping to another window, clear a pending operator.  That's a bit
2800      * friendlier than beeping and not jumping to that window. */
2801     if (curwin != old_curwin && oap != NULL && oap->op_type != OP_NOP)
2802 	clearop(oap);
2803 
2804 #ifdef FEAT_FOLDING
2805     if (mod_mask == 0
2806 	    && !is_drag
2807 	    && (jump_flags & (MOUSE_FOLD_CLOSE | MOUSE_FOLD_OPEN))
2808 	    && which_button == MOUSE_LEFT)
2809     {
2810 	/* open or close a fold at this line */
2811 	if (jump_flags & MOUSE_FOLD_OPEN)
2812 	    openFold(curwin->w_cursor.lnum, 1L);
2813 	else
2814 	    closeFold(curwin->w_cursor.lnum, 1L);
2815 	/* don't move the cursor if still in the same window */
2816 	if (curwin == old_curwin)
2817 	    curwin->w_cursor = save_cursor;
2818     }
2819 #endif
2820 
2821 #if defined(FEAT_CLIPBOARD) && defined(FEAT_CMDWIN)
2822     if ((jump_flags & IN_OTHER_WIN) && !VIsual_active && clip_star.available)
2823     {
2824 	clip_modeless(which_button, is_click, is_drag);
2825 	return FALSE;
2826     }
2827 #endif
2828 
2829     /* Set global flag that we are extending the Visual area with mouse
2830      * dragging; temporarily minimize 'scrolloff'. */
2831     if (VIsual_active && is_drag && p_so)
2832     {
2833 	/* In the very first line, allow scrolling one line */
2834 	if (mouse_row == 0)
2835 	    mouse_dragging = 2;
2836 	else
2837 	    mouse_dragging = 1;
2838     }
2839 
2840     /* When dragging the mouse above the window, scroll down. */
2841     if (is_drag && mouse_row < 0 && !in_status_line)
2842     {
2843 	scroll_redraw(FALSE, 1L);
2844 	mouse_row = 0;
2845     }
2846 
2847     if (start_visual.lnum)		/* right click in visual mode */
2848     {
2849        /* When ALT is pressed make Visual mode blockwise. */
2850        if (mod_mask & MOD_MASK_ALT)
2851 	   VIsual_mode = Ctrl_V;
2852 
2853 	/*
2854 	 * In Visual-block mode, divide the area in four, pick up the corner
2855 	 * that is in the quarter that the cursor is in.
2856 	 */
2857 	if (VIsual_mode == Ctrl_V)
2858 	{
2859 	    getvcols(curwin, &start_visual, &end_visual, &leftcol, &rightcol);
2860 	    if (curwin->w_curswant > (leftcol + rightcol) / 2)
2861 		end_visual.col = leftcol;
2862 	    else
2863 		end_visual.col = rightcol;
2864 	    if (curwin->w_cursor.lnum >=
2865 				    (start_visual.lnum + end_visual.lnum) / 2)
2866 		end_visual.lnum = start_visual.lnum;
2867 
2868 	    /* move VIsual to the right column */
2869 	    start_visual = curwin->w_cursor;	    /* save the cursor pos */
2870 	    curwin->w_cursor = end_visual;
2871 	    coladvance(end_visual.col);
2872 	    VIsual = curwin->w_cursor;
2873 	    curwin->w_cursor = start_visual;	    /* restore the cursor */
2874 	}
2875 	else
2876 	{
2877 	    /*
2878 	     * If the click is before the start of visual, change the start.
2879 	     * If the click is after the end of visual, change the end.  If
2880 	     * the click is inside the visual, change the closest side.
2881 	     */
2882 	    if (lt(curwin->w_cursor, start_visual))
2883 		VIsual = end_visual;
2884 	    else if (lt(end_visual, curwin->w_cursor))
2885 		VIsual = start_visual;
2886 	    else
2887 	    {
2888 		/* In the same line, compare column number */
2889 		if (end_visual.lnum == start_visual.lnum)
2890 		{
2891 		    if (curwin->w_cursor.col - start_visual.col >
2892 				    end_visual.col - curwin->w_cursor.col)
2893 			VIsual = start_visual;
2894 		    else
2895 			VIsual = end_visual;
2896 		}
2897 
2898 		/* In different lines, compare line number */
2899 		else
2900 		{
2901 		    diff = (curwin->w_cursor.lnum - start_visual.lnum) -
2902 				(end_visual.lnum - curwin->w_cursor.lnum);
2903 
2904 		    if (diff > 0)		/* closest to end */
2905 			VIsual = start_visual;
2906 		    else if (diff < 0)	/* closest to start */
2907 			VIsual = end_visual;
2908 		    else			/* in the middle line */
2909 		    {
2910 			if (curwin->w_cursor.col <
2911 					(start_visual.col + end_visual.col) / 2)
2912 			    VIsual = end_visual;
2913 			else
2914 			    VIsual = start_visual;
2915 		    }
2916 		}
2917 	    }
2918 	}
2919     }
2920     /*
2921      * If Visual mode started in insert mode, execute "CTRL-O"
2922      */
2923     else if ((State & INSERT) && VIsual_active)
2924 	stuffcharReadbuff(Ctrl_O);
2925 
2926     /*
2927      * Middle mouse click: Put text before cursor.
2928      */
2929     if (which_button == MOUSE_MIDDLE)
2930     {
2931 #ifdef FEAT_CLIPBOARD
2932 	if (clip_star.available && regname == 0)
2933 	    regname = '*';
2934 #endif
2935 	if (yank_register_mline(regname))
2936 	{
2937 	    if (mouse_past_bottom)
2938 		dir = FORWARD;
2939 	}
2940 	else if (mouse_past_eol)
2941 	    dir = FORWARD;
2942 
2943 	if (fixindent)
2944 	{
2945 	    c1 = (dir == BACKWARD) ? '[' : ']';
2946 	    c2 = 'p';
2947 	}
2948 	else
2949 	{
2950 	    c1 = (dir == FORWARD) ? 'p' : 'P';
2951 	    c2 = NUL;
2952 	}
2953 	prep_redo(regname, count, NUL, c1, NUL, c2, NUL);
2954 
2955 	/*
2956 	 * Remember where the paste started, so in edit() Insstart can be set
2957 	 * to this position
2958 	 */
2959 	if (restart_edit != 0)
2960 	    where_paste_started = curwin->w_cursor;
2961 	do_put(regname, dir, count, fixindent | PUT_CURSEND);
2962     }
2963 
2964 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2965     /*
2966      * Ctrl-Mouse click or double click in a quickfix window jumps to the
2967      * error under the mouse pointer.
2968      */
2969     else if (((mod_mask & MOD_MASK_CTRL)
2970 		|| (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2971 	    && bt_quickfix(curbuf))
2972     {
2973 	if (State & INSERT)
2974 	    stuffcharReadbuff(Ctrl_O);
2975 	if (curwin->w_llist_ref == NULL)	/* quickfix window */
2976 	    stuffReadbuff((char_u *)":.cc\n");
2977 	else					/* location list window */
2978 	    stuffReadbuff((char_u *)":.ll\n");
2979 	got_click = FALSE;		/* ignore drag&release now */
2980     }
2981 #endif
2982 
2983     /*
2984      * Ctrl-Mouse click (or double click in a help window) jumps to the tag
2985      * under the mouse pointer.
2986      */
2987     else if ((mod_mask & MOD_MASK_CTRL) || (curbuf->b_help
2988 		     && (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK))
2989     {
2990 	if (State & INSERT)
2991 	    stuffcharReadbuff(Ctrl_O);
2992 	stuffcharReadbuff(Ctrl_RSB);
2993 	got_click = FALSE;		/* ignore drag&release now */
2994     }
2995 
2996     /*
2997      * Shift-Mouse click searches for the next occurrence of the word under
2998      * the mouse pointer
2999      */
3000     else if ((mod_mask & MOD_MASK_SHIFT))
3001     {
3002 	if ((State & INSERT) || (VIsual_active && VIsual_select))
3003 	    stuffcharReadbuff(Ctrl_O);
3004 	if (which_button == MOUSE_LEFT)
3005 	    stuffcharReadbuff('*');
3006 	else	/* MOUSE_RIGHT */
3007 	    stuffcharReadbuff('#');
3008     }
3009 
3010     /* Handle double clicks, unless on status line */
3011     else if (in_status_line)
3012     {
3013 #ifdef FEAT_MOUSESHAPE
3014 	if ((is_drag || is_click) && !drag_status_line)
3015 	{
3016 	    drag_status_line = TRUE;
3017 	    update_mouseshape(-1);
3018 	}
3019 #endif
3020     }
3021 #ifdef FEAT_WINDOWS
3022     else if (in_sep_line)
3023     {
3024 # ifdef FEAT_MOUSESHAPE
3025 	if ((is_drag || is_click) && !drag_sep_line)
3026 	{
3027 	    drag_sep_line = TRUE;
3028 	    update_mouseshape(-1);
3029 	}
3030 # endif
3031     }
3032 #endif
3033     else if ((mod_mask & MOD_MASK_MULTI_CLICK) && (State & (NORMAL | INSERT))
3034 	     && mouse_has(MOUSE_VISUAL))
3035     {
3036 	if (is_click || !VIsual_active)
3037 	{
3038 	    if (VIsual_active)
3039 		orig_cursor = VIsual;
3040 	    else
3041 	    {
3042 		check_visual_highlight();
3043 		VIsual = curwin->w_cursor;
3044 		orig_cursor = VIsual;
3045 		VIsual_active = TRUE;
3046 		VIsual_reselect = TRUE;
3047 		/* start Select mode if 'selectmode' contains "mouse" */
3048 		may_start_select('o');
3049 		setmouse();
3050 	    }
3051 	    if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
3052 	    {
3053 		/* Double click with ALT pressed makes it blockwise. */
3054 		if (mod_mask & MOD_MASK_ALT)
3055 		    VIsual_mode = Ctrl_V;
3056 		else
3057 		    VIsual_mode = 'v';
3058 	    }
3059 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_3CLICK)
3060 		VIsual_mode = 'V';
3061 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_4CLICK)
3062 		VIsual_mode = Ctrl_V;
3063 #ifdef FEAT_CLIPBOARD
3064 	    /* Make sure the clipboard gets updated.  Needed because start and
3065 	     * end may still be the same, and the selection needs to be owned */
3066 	    clip_star.vmode = NUL;
3067 #endif
3068 	}
3069 	/*
3070 	 * A double click selects a word or a block.
3071 	 */
3072 	if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
3073 	{
3074 	    pos_T	*pos = NULL;
3075 	    int		gc;
3076 
3077 	    if (is_click)
3078 	    {
3079 		/* If the character under the cursor (skipping white space) is
3080 		 * not a word character, try finding a match and select a (),
3081 		 * {}, [], #if/#endif, etc. block. */
3082 		end_visual = curwin->w_cursor;
3083 		while (gc = gchar_pos(&end_visual), vim_iswhite(gc))
3084 		    inc(&end_visual);
3085 		if (oap != NULL)
3086 		    oap->motion_type = MCHAR;
3087 		if (oap != NULL
3088 			&& VIsual_mode == 'v'
3089 			&& !vim_iswordc(gchar_pos(&end_visual))
3090 			&& equalpos(curwin->w_cursor, VIsual)
3091 			&& (pos = findmatch(oap, NUL)) != NULL)
3092 		{
3093 		    curwin->w_cursor = *pos;
3094 		    if (oap->motion_type == MLINE)
3095 			VIsual_mode = 'V';
3096 		    else if (*p_sel == 'e')
3097 		    {
3098 			if (lt(curwin->w_cursor, VIsual))
3099 			    ++VIsual.col;
3100 			else
3101 			    ++curwin->w_cursor.col;
3102 		    }
3103 		}
3104 	    }
3105 
3106 	    if (pos == NULL && (is_click || is_drag))
3107 	    {
3108 		/* When not found a match or when dragging: extend to include
3109 		 * a word. */
3110 		if (lt(curwin->w_cursor, orig_cursor))
3111 		{
3112 		    find_start_of_word(&curwin->w_cursor);
3113 		    find_end_of_word(&VIsual);
3114 		}
3115 		else
3116 		{
3117 		    find_start_of_word(&VIsual);
3118 		    if (*p_sel == 'e' && *ml_get_cursor() != NUL)
3119 #ifdef FEAT_MBYTE
3120 			curwin->w_cursor.col +=
3121 					 (*mb_ptr2len)(ml_get_cursor());
3122 #else
3123 			++curwin->w_cursor.col;
3124 #endif
3125 		    find_end_of_word(&curwin->w_cursor);
3126 		}
3127 	    }
3128 	    curwin->w_set_curswant = TRUE;
3129 	}
3130 	if (is_click)
3131 	    redraw_curbuf_later(INVERTED);	/* update the inversion */
3132     }
3133     else if (VIsual_active && !old_active)
3134     {
3135 	if (mod_mask & MOD_MASK_ALT)
3136 	    VIsual_mode = Ctrl_V;
3137 	else
3138 	    VIsual_mode = 'v';
3139     }
3140 
3141     /* If Visual mode changed show it later. */
3142     if ((!VIsual_active && old_active && mode_displayed)
3143 	    || (VIsual_active && p_smd && msg_silent == 0
3144 				 && (!old_active || VIsual_mode != old_mode)))
3145 	redraw_cmdline = TRUE;
3146 
3147     return moved;
3148 }
3149 
3150 /*
3151  * Move "pos" back to the start of the word it's in.
3152  */
3153     static void
3154 find_start_of_word(pos_T *pos)
3155 {
3156     char_u	*line;
3157     int		cclass;
3158     int		col;
3159 
3160     line = ml_get(pos->lnum);
3161     cclass = get_mouse_class(line + pos->col);
3162 
3163     while (pos->col > 0)
3164     {
3165 	col = pos->col - 1;
3166 #ifdef FEAT_MBYTE
3167 	col -= (*mb_head_off)(line, line + col);
3168 #endif
3169 	if (get_mouse_class(line + col) != cclass)
3170 	    break;
3171 	pos->col = col;
3172     }
3173 }
3174 
3175 /*
3176  * Move "pos" forward to the end of the word it's in.
3177  * When 'selection' is "exclusive", the position is just after the word.
3178  */
3179     static void
3180 find_end_of_word(pos_T *pos)
3181 {
3182     char_u	*line;
3183     int		cclass;
3184     int		col;
3185 
3186     line = ml_get(pos->lnum);
3187     if (*p_sel == 'e' && pos->col > 0)
3188     {
3189 	--pos->col;
3190 #ifdef FEAT_MBYTE
3191 	pos->col -= (*mb_head_off)(line, line + pos->col);
3192 #endif
3193     }
3194     cclass = get_mouse_class(line + pos->col);
3195     while (line[pos->col] != NUL)
3196     {
3197 #ifdef FEAT_MBYTE
3198 	col = pos->col + (*mb_ptr2len)(line + pos->col);
3199 #else
3200 	col = pos->col + 1;
3201 #endif
3202 	if (get_mouse_class(line + col) != cclass)
3203 	{
3204 	    if (*p_sel == 'e')
3205 		pos->col = col;
3206 	    break;
3207 	}
3208 	pos->col = col;
3209     }
3210 }
3211 
3212 /*
3213  * Get class of a character for selection: same class means same word.
3214  * 0: blank
3215  * 1: punctuation groups
3216  * 2: normal word character
3217  * >2: multi-byte word character.
3218  */
3219     static int
3220 get_mouse_class(char_u *p)
3221 {
3222     int		c;
3223 
3224 #ifdef FEAT_MBYTE
3225     if (has_mbyte && MB_BYTE2LEN(p[0]) > 1)
3226 	return mb_get_class(p);
3227 #endif
3228 
3229     c = *p;
3230     if (c == ' ' || c == '\t')
3231 	return 0;
3232 
3233     if (vim_iswordc(c))
3234 	return 2;
3235 
3236     /*
3237      * There are a few special cases where we want certain combinations of
3238      * characters to be considered as a single word.  These are things like
3239      * "->", "/ *", "*=", "+=", "&=", "<=", ">=", "!=" etc.  Otherwise, each
3240      * character is in its own class.
3241      */
3242     if (c != NUL && vim_strchr((char_u *)"-+*/%<>&|^!=", c) != NULL)
3243 	return 1;
3244     return c;
3245 }
3246 #endif /* FEAT_MOUSE */
3247 
3248 /*
3249  * Check if  highlighting for visual mode is possible, give a warning message
3250  * if not.
3251  */
3252     void
3253 check_visual_highlight(void)
3254 {
3255     static int	    did_check = FALSE;
3256 
3257     if (full_screen)
3258     {
3259 	if (!did_check && hl_attr(HLF_V) == 0)
3260 	    MSG(_("Warning: terminal cannot highlight"));
3261 	did_check = TRUE;
3262     }
3263 }
3264 
3265 /*
3266  * End Visual mode.
3267  * This function should ALWAYS be called to end Visual mode, except from
3268  * do_pending_operator().
3269  */
3270     void
3271 end_visual_mode(void)
3272 {
3273 #ifdef FEAT_CLIPBOARD
3274     /*
3275      * If we are using the clipboard, then remember what was selected in case
3276      * we need to paste it somewhere while we still own the selection.
3277      * Only do this when the clipboard is already owned.  Don't want to grab
3278      * the selection when hitting ESC.
3279      */
3280     if (clip_star.available && clip_star.owned)
3281 	clip_auto_select();
3282 #endif
3283 
3284     VIsual_active = FALSE;
3285 #ifdef FEAT_MOUSE
3286     setmouse();
3287     mouse_dragging = 0;
3288 #endif
3289 
3290     /* Save the current VIsual area for '< and '> marks, and "gv" */
3291     curbuf->b_visual.vi_mode = VIsual_mode;
3292     curbuf->b_visual.vi_start = VIsual;
3293     curbuf->b_visual.vi_end = curwin->w_cursor;
3294     curbuf->b_visual.vi_curswant = curwin->w_curswant;
3295 #ifdef FEAT_EVAL
3296     curbuf->b_visual_mode_eval = VIsual_mode;
3297 #endif
3298 #ifdef FEAT_VIRTUALEDIT
3299     if (!virtual_active())
3300 	curwin->w_cursor.coladd = 0;
3301 #endif
3302     may_clear_cmdline();
3303 
3304     adjust_cursor_eol();
3305 }
3306 
3307 /*
3308  * Reset VIsual_active and VIsual_reselect.
3309  */
3310     void
3311 reset_VIsual_and_resel(void)
3312 {
3313     if (VIsual_active)
3314     {
3315 	end_visual_mode();
3316 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3317     }
3318     VIsual_reselect = FALSE;
3319 }
3320 
3321 /*
3322  * Reset VIsual_active and VIsual_reselect if it's set.
3323  */
3324     void
3325 reset_VIsual(void)
3326 {
3327     if (VIsual_active)
3328     {
3329 	end_visual_mode();
3330 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3331 	VIsual_reselect = FALSE;
3332     }
3333 }
3334 
3335 #if defined(FEAT_BEVAL)
3336 static int find_is_eval_item(char_u *ptr, int *colp, int *nbp, int dir);
3337 
3338 /*
3339  * Check for a balloon-eval special item to include when searching for an
3340  * identifier.  When "dir" is BACKWARD "ptr[-1]" must be valid!
3341  * Returns TRUE if the character at "*ptr" should be included.
3342  * "dir" is FORWARD or BACKWARD, the direction of searching.
3343  * "*colp" is in/decremented if "ptr[-dir]" should also be included.
3344  * "bnp" points to a counter for square brackets.
3345  */
3346     static int
3347 find_is_eval_item(
3348     char_u	*ptr,
3349     int		*colp,
3350     int		*bnp,
3351     int		dir)
3352 {
3353     /* Accept everything inside []. */
3354     if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD))
3355 	++*bnp;
3356     if (*bnp > 0)
3357     {
3358 	if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD))
3359 	    --*bnp;
3360 	return TRUE;
3361     }
3362 
3363     /* skip over "s.var" */
3364     if (*ptr == '.')
3365 	return TRUE;
3366 
3367     /* two-character item: s->var */
3368     if (ptr[dir == BACKWARD ? 0 : 1] == '>'
3369 	    && ptr[dir == BACKWARD ? -1 : 0] == '-')
3370     {
3371 	*colp += dir;
3372 	return TRUE;
3373     }
3374     return FALSE;
3375 }
3376 #endif
3377 
3378 /*
3379  * Find the identifier under or to the right of the cursor.
3380  * "find_type" can have one of three values:
3381  * FIND_IDENT:   find an identifier (keyword)
3382  * FIND_STRING:  find any non-white string
3383  * FIND_IDENT + FIND_STRING: find any non-white string, identifier preferred.
3384  * FIND_EVAL:	 find text useful for C program debugging
3385  *
3386  * There are three steps:
3387  * 1. Search forward for the start of an identifier/string.  Doesn't move if
3388  *    already on one.
3389  * 2. Search backward for the start of this identifier/string.
3390  *    This doesn't match the real Vi but I like it a little better and it
3391  *    shouldn't bother anyone.
3392  * 3. Search forward to the end of this identifier/string.
3393  *    When FIND_IDENT isn't defined, we backup until a blank.
3394  *
3395  * Returns the length of the string, or zero if no string is found.
3396  * If a string is found, a pointer to the string is put in "*string".  This
3397  * string is not always NUL terminated.
3398  */
3399     int
3400 find_ident_under_cursor(char_u **string, int find_type)
3401 {
3402     return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
3403 				     curwin->w_cursor.col, string, find_type);
3404 }
3405 
3406 /*
3407  * Like find_ident_under_cursor(), but for any window and any position.
3408  * However: Uses 'iskeyword' from the current window!.
3409  */
3410     int
3411 find_ident_at_pos(
3412     win_T	*wp,
3413     linenr_T	lnum,
3414     colnr_T	startcol,
3415     char_u	**string,
3416     int		find_type)
3417 {
3418     char_u	*ptr;
3419     int		col = 0;	    /* init to shut up GCC */
3420     int		i;
3421 #ifdef FEAT_MBYTE
3422     int		this_class = 0;
3423     int		prev_class;
3424     int		prevcol;
3425 #endif
3426 #if defined(FEAT_BEVAL)
3427     int		bn = 0;	    /* bracket nesting */
3428 #endif
3429 
3430     /*
3431      * if i == 0: try to find an identifier
3432      * if i == 1: try to find any non-white string
3433      */
3434     ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
3435     for (i = (find_type & FIND_IDENT) ? 0 : 1;	i < 2; ++i)
3436     {
3437 	/*
3438 	 * 1. skip to start of identifier/string
3439 	 */
3440 	col = startcol;
3441 #ifdef FEAT_MBYTE
3442 	if (has_mbyte)
3443 	{
3444 	    while (ptr[col] != NUL)
3445 	    {
3446 # if defined(FEAT_BEVAL)
3447 		/* Stop at a ']' to evaluate "a[x]". */
3448 		if ((find_type & FIND_EVAL) && ptr[col] == ']')
3449 		    break;
3450 # endif
3451 		this_class = mb_get_class(ptr + col);
3452 		if (this_class != 0 && (i == 1 || this_class != 1))
3453 		    break;
3454 		col += (*mb_ptr2len)(ptr + col);
3455 	    }
3456 	}
3457 	else
3458 #endif
3459 	    while (ptr[col] != NUL
3460 		    && (i == 0 ? !vim_iswordc(ptr[col]) : vim_iswhite(ptr[col]))
3461 # if defined(FEAT_BEVAL)
3462 		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
3463 # endif
3464 		    )
3465 		++col;
3466 
3467 #if defined(FEAT_BEVAL)
3468 	/* When starting on a ']' count it, so that we include the '['. */
3469 	bn = ptr[col] == ']';
3470 #endif
3471 
3472 	/*
3473 	 * 2. Back up to start of identifier/string.
3474 	 */
3475 #ifdef FEAT_MBYTE
3476 	if (has_mbyte)
3477 	{
3478 	    /* Remember class of character under cursor. */
3479 # if defined(FEAT_BEVAL)
3480 	    if ((find_type & FIND_EVAL) && ptr[col] == ']')
3481 		this_class = mb_get_class((char_u *)"a");
3482 	    else
3483 # endif
3484 		this_class = mb_get_class(ptr + col);
3485 	    while (col > 0 && this_class != 0)
3486 	    {
3487 		prevcol = col - 1 - (*mb_head_off)(ptr, ptr + col - 1);
3488 		prev_class = mb_get_class(ptr + prevcol);
3489 		if (this_class != prev_class
3490 			&& (i == 0
3491 			    || prev_class == 0
3492 			    || (find_type & FIND_IDENT))
3493 # if defined(FEAT_BEVAL)
3494 			&& (!(find_type & FIND_EVAL)
3495 			    || prevcol == 0
3496 			    || !find_is_eval_item(ptr + prevcol, &prevcol,
3497 							       &bn, BACKWARD))
3498 # endif
3499 			)
3500 		    break;
3501 		col = prevcol;
3502 	    }
3503 
3504 	    /* If we don't want just any old string, or we've found an
3505 	     * identifier, stop searching. */
3506 	    if (this_class > 2)
3507 		this_class = 2;
3508 	    if (!(find_type & FIND_STRING) || this_class == 2)
3509 		break;
3510 	}
3511 	else
3512 #endif
3513 	{
3514 	    while (col > 0
3515 		    && ((i == 0
3516 			    ? vim_iswordc(ptr[col - 1])
3517 			    : (!vim_iswhite(ptr[col - 1])
3518 				&& (!(find_type & FIND_IDENT)
3519 				    || !vim_iswordc(ptr[col - 1]))))
3520 #if defined(FEAT_BEVAL)
3521 			|| ((find_type & FIND_EVAL)
3522 			    && col > 1
3523 			    && find_is_eval_item(ptr + col - 1, &col,
3524 							       &bn, BACKWARD))
3525 #endif
3526 			))
3527 		--col;
3528 
3529 	    /* If we don't want just any old string, or we've found an
3530 	     * identifier, stop searching. */
3531 	    if (!(find_type & FIND_STRING) || vim_iswordc(ptr[col]))
3532 		break;
3533 	}
3534     }
3535 
3536     if (ptr[col] == NUL || (i == 0 && (
3537 #ifdef FEAT_MBYTE
3538 		has_mbyte ? this_class != 2 :
3539 #endif
3540 		!vim_iswordc(ptr[col]))))
3541     {
3542 	/*
3543 	 * didn't find an identifier or string
3544 	 */
3545 	if (find_type & FIND_STRING)
3546 	    EMSG(_("E348: No string under cursor"));
3547 	else
3548 	    EMSG(_(e_noident));
3549 	return 0;
3550     }
3551     ptr += col;
3552     *string = ptr;
3553 
3554     /*
3555      * 3. Find the end if the identifier/string.
3556      */
3557 #if defined(FEAT_BEVAL)
3558     bn = 0;
3559     startcol -= col;
3560 #endif
3561     col = 0;
3562 #ifdef FEAT_MBYTE
3563     if (has_mbyte)
3564     {
3565 	/* Search for point of changing multibyte character class. */
3566 	this_class = mb_get_class(ptr);
3567 	while (ptr[col] != NUL
3568 		&& ((i == 0 ? mb_get_class(ptr + col) == this_class
3569 			    : mb_get_class(ptr + col) != 0)
3570 # if defined(FEAT_BEVAL)
3571 		    || ((find_type & FIND_EVAL)
3572 			&& col <= (int)startcol
3573 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3574 # endif
3575 		))
3576 	    col += (*mb_ptr2len)(ptr + col);
3577     }
3578     else
3579 #endif
3580 	while ((i == 0 ? vim_iswordc(ptr[col])
3581 		       : (ptr[col] != NUL && !vim_iswhite(ptr[col])))
3582 # if defined(FEAT_BEVAL)
3583 		    || ((find_type & FIND_EVAL)
3584 			&& col <= (int)startcol
3585 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3586 # endif
3587 		)
3588 	{
3589 	    ++col;
3590 	}
3591 
3592     return col;
3593 }
3594 
3595 /*
3596  * Prepare for redo of a normal command.
3597  */
3598     static void
3599 prep_redo_cmd(cmdarg_T *cap)
3600 {
3601     prep_redo(cap->oap->regname, cap->count0,
3602 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
3603 }
3604 
3605 /*
3606  * Prepare for redo of any command.
3607  * Note that only the last argument can be a multi-byte char.
3608  */
3609     static void
3610 prep_redo(
3611     int	    regname,
3612     long    num,
3613     int	    cmd1,
3614     int	    cmd2,
3615     int	    cmd3,
3616     int	    cmd4,
3617     int	    cmd5)
3618 {
3619     ResetRedobuff();
3620     if (regname != 0)	/* yank from specified buffer */
3621     {
3622 	AppendCharToRedobuff('"');
3623 	AppendCharToRedobuff(regname);
3624     }
3625     if (num)
3626 	AppendNumberToRedobuff(num);
3627 
3628     if (cmd1 != NUL)
3629 	AppendCharToRedobuff(cmd1);
3630     if (cmd2 != NUL)
3631 	AppendCharToRedobuff(cmd2);
3632     if (cmd3 != NUL)
3633 	AppendCharToRedobuff(cmd3);
3634     if (cmd4 != NUL)
3635 	AppendCharToRedobuff(cmd4);
3636     if (cmd5 != NUL)
3637 	AppendCharToRedobuff(cmd5);
3638 }
3639 
3640 /*
3641  * check for operator active and clear it
3642  *
3643  * return TRUE if operator was active
3644  */
3645     static int
3646 checkclearop(oparg_T *oap)
3647 {
3648     if (oap->op_type == OP_NOP)
3649 	return FALSE;
3650     clearopbeep(oap);
3651     return TRUE;
3652 }
3653 
3654 /*
3655  * Check for operator or Visual active.  Clear active operator.
3656  *
3657  * Return TRUE if operator or Visual was active.
3658  */
3659     static int
3660 checkclearopq(oparg_T *oap)
3661 {
3662     if (oap->op_type == OP_NOP && !VIsual_active)
3663 	return FALSE;
3664     clearopbeep(oap);
3665     return TRUE;
3666 }
3667 
3668     static void
3669 clearop(oparg_T *oap)
3670 {
3671     oap->op_type = OP_NOP;
3672     oap->regname = 0;
3673     oap->motion_force = NUL;
3674     oap->use_reg_one = FALSE;
3675 }
3676 
3677     static void
3678 clearopbeep(oparg_T *oap)
3679 {
3680     clearop(oap);
3681     beep_flush();
3682 }
3683 
3684 /*
3685  * Remove the shift modifier from a special key.
3686  */
3687     static void
3688 unshift_special(cmdarg_T *cap)
3689 {
3690     switch (cap->cmdchar)
3691     {
3692 	case K_S_RIGHT:	cap->cmdchar = K_RIGHT; break;
3693 	case K_S_LEFT:	cap->cmdchar = K_LEFT; break;
3694 	case K_S_UP:	cap->cmdchar = K_UP; break;
3695 	case K_S_DOWN:	cap->cmdchar = K_DOWN; break;
3696 	case K_S_HOME:	cap->cmdchar = K_HOME; break;
3697 	case K_S_END:	cap->cmdchar = K_END; break;
3698     }
3699     cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
3700 }
3701 
3702 /*
3703  * If the mode is currently displayed clear the command line or update the
3704  * command displayed.
3705  */
3706     static void
3707 may_clear_cmdline(void)
3708 {
3709     if (mode_displayed)
3710 	clear_cmdline = TRUE;   /* unshow visual mode later */
3711 #ifdef FEAT_CMDL_INFO
3712     else
3713 	clear_showcmd();
3714 #endif
3715 }
3716 
3717 #if defined(FEAT_CMDL_INFO) || defined(PROTO)
3718 /*
3719  * Routines for displaying a partly typed command
3720  */
3721 
3722 #define SHOWCMD_BUFLEN SHOWCMD_COLS + 1 + 30
3723 static char_u	showcmd_buf[SHOWCMD_BUFLEN];
3724 static char_u	old_showcmd_buf[SHOWCMD_BUFLEN];  /* For push_showcmd() */
3725 static int	showcmd_is_clear = TRUE;
3726 static int	showcmd_visual = FALSE;
3727 
3728 static void display_showcmd(void);
3729 
3730     void
3731 clear_showcmd(void)
3732 {
3733     if (!p_sc)
3734 	return;
3735 
3736     if (VIsual_active && !char_avail())
3737     {
3738 	int		cursor_bot = lt(VIsual, curwin->w_cursor);
3739 	long		lines;
3740 	colnr_T		leftcol, rightcol;
3741 	linenr_T	top, bot;
3742 
3743 	/* Show the size of the Visual area. */
3744 	if (cursor_bot)
3745 	{
3746 	    top = VIsual.lnum;
3747 	    bot = curwin->w_cursor.lnum;
3748 	}
3749 	else
3750 	{
3751 	    top = curwin->w_cursor.lnum;
3752 	    bot = VIsual.lnum;
3753 	}
3754 # ifdef FEAT_FOLDING
3755 	/* Include closed folds as a whole. */
3756 	(void)hasFolding(top, &top, NULL);
3757 	(void)hasFolding(bot, NULL, &bot);
3758 # endif
3759 	lines = bot - top + 1;
3760 
3761 	if (VIsual_mode == Ctrl_V)
3762 	{
3763 # ifdef FEAT_LINEBREAK
3764 	    char_u *saved_sbr = p_sbr;
3765 
3766 	    /* Make 'sbr' empty for a moment to get the correct size. */
3767 	    p_sbr = empty_option;
3768 # endif
3769 	    getvcols(curwin, &curwin->w_cursor, &VIsual, &leftcol, &rightcol);
3770 # ifdef FEAT_LINEBREAK
3771 	    p_sbr = saved_sbr;
3772 # endif
3773 	    sprintf((char *)showcmd_buf, "%ldx%ld", lines,
3774 					      (long)(rightcol - leftcol + 1));
3775 	}
3776 	else if (VIsual_mode == 'V' || VIsual.lnum != curwin->w_cursor.lnum)
3777 	    sprintf((char *)showcmd_buf, "%ld", lines);
3778 	else
3779 	{
3780 	    char_u  *s, *e;
3781 	    int	    l;
3782 	    int	    bytes = 0;
3783 	    int	    chars = 0;
3784 
3785 	    if (cursor_bot)
3786 	    {
3787 		s = ml_get_pos(&VIsual);
3788 		e = ml_get_cursor();
3789 	    }
3790 	    else
3791 	    {
3792 		s = ml_get_cursor();
3793 		e = ml_get_pos(&VIsual);
3794 	    }
3795 	    while ((*p_sel != 'e') ? s <= e : s < e)
3796 	    {
3797 # ifdef FEAT_MBYTE
3798 		l = (*mb_ptr2len)(s);
3799 # else
3800 		l = (*s == NUL) ? 0 : 1;
3801 # endif
3802 		if (l == 0)
3803 		{
3804 		    ++bytes;
3805 		    ++chars;
3806 		    break;  /* end of line */
3807 		}
3808 		bytes += l;
3809 		++chars;
3810 		s += l;
3811 	    }
3812 	    if (bytes == chars)
3813 		sprintf((char *)showcmd_buf, "%d", chars);
3814 	    else
3815 		sprintf((char *)showcmd_buf, "%d-%d", chars, bytes);
3816 	}
3817 	showcmd_buf[SHOWCMD_COLS] = NUL;	/* truncate */
3818 	showcmd_visual = TRUE;
3819     }
3820     else
3821     {
3822 	showcmd_buf[0] = NUL;
3823 	showcmd_visual = FALSE;
3824 
3825 	/* Don't actually display something if there is nothing to clear. */
3826 	if (showcmd_is_clear)
3827 	    return;
3828     }
3829 
3830     display_showcmd();
3831 }
3832 
3833 /*
3834  * Add 'c' to string of shown command chars.
3835  * Return TRUE if output has been written (and setcursor() has been called).
3836  */
3837     int
3838 add_to_showcmd(int c)
3839 {
3840     char_u	*p;
3841     int		old_len;
3842     int		extra_len;
3843     int		overflow;
3844 #if defined(FEAT_MOUSE)
3845     int		i;
3846     static int	ignore[] =
3847     {
3848 # ifdef FEAT_GUI
3849 	K_VER_SCROLLBAR, K_HOR_SCROLLBAR,
3850 	K_LEFTMOUSE_NM, K_LEFTRELEASE_NM,
3851 # endif
3852 	K_IGNORE,
3853 	K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE,
3854 	K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
3855 	K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
3856 	K_MOUSEDOWN, K_MOUSEUP, K_MOUSELEFT, K_MOUSERIGHT,
3857 	K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
3858 	K_CURSORHOLD,
3859 	0
3860     };
3861 #endif
3862 
3863     if (!p_sc || msg_silent != 0)
3864 	return FALSE;
3865 
3866     if (showcmd_visual)
3867     {
3868 	showcmd_buf[0] = NUL;
3869 	showcmd_visual = FALSE;
3870     }
3871 
3872 #if defined(FEAT_MOUSE)
3873     /* Ignore keys that are scrollbar updates and mouse clicks */
3874     if (IS_SPECIAL(c))
3875 	for (i = 0; ignore[i] != 0; ++i)
3876 	    if (ignore[i] == c)
3877 		return FALSE;
3878 #endif
3879 
3880     p = transchar(c);
3881     if (*p == ' ')
3882 	STRCPY(p, "<20>");
3883     old_len = (int)STRLEN(showcmd_buf);
3884     extra_len = (int)STRLEN(p);
3885     overflow = old_len + extra_len - SHOWCMD_COLS;
3886     if (overflow > 0)
3887 	mch_memmove(showcmd_buf, showcmd_buf + overflow,
3888 						      old_len - overflow + 1);
3889     STRCAT(showcmd_buf, p);
3890 
3891     if (char_avail())
3892 	return FALSE;
3893 
3894     display_showcmd();
3895 
3896     return TRUE;
3897 }
3898 
3899     void
3900 add_to_showcmd_c(int c)
3901 {
3902     if (!add_to_showcmd(c))
3903 	setcursor();
3904 }
3905 
3906 /*
3907  * Delete 'len' characters from the end of the shown command.
3908  */
3909     static void
3910 del_from_showcmd(int len)
3911 {
3912     int	    old_len;
3913 
3914     if (!p_sc)
3915 	return;
3916 
3917     old_len = (int)STRLEN(showcmd_buf);
3918     if (len > old_len)
3919 	len = old_len;
3920     showcmd_buf[old_len - len] = NUL;
3921 
3922     if (!char_avail())
3923 	display_showcmd();
3924 }
3925 
3926 /*
3927  * push_showcmd() and pop_showcmd() are used when waiting for the user to type
3928  * something and there is a partial mapping.
3929  */
3930     void
3931 push_showcmd(void)
3932 {
3933     if (p_sc)
3934 	STRCPY(old_showcmd_buf, showcmd_buf);
3935 }
3936 
3937     void
3938 pop_showcmd(void)
3939 {
3940     if (!p_sc)
3941 	return;
3942 
3943     STRCPY(showcmd_buf, old_showcmd_buf);
3944 
3945     display_showcmd();
3946 }
3947 
3948     static void
3949 display_showcmd(void)
3950 {
3951     int	    len;
3952 
3953     cursor_off();
3954 
3955     len = (int)STRLEN(showcmd_buf);
3956     if (len == 0)
3957 	showcmd_is_clear = TRUE;
3958     else
3959     {
3960 	screen_puts(showcmd_buf, (int)Rows - 1, sc_col, 0);
3961 	showcmd_is_clear = FALSE;
3962     }
3963 
3964     /*
3965      * clear the rest of an old message by outputting up to SHOWCMD_COLS
3966      * spaces
3967      */
3968     screen_puts((char_u *)"          " + len, (int)Rows - 1, sc_col + len, 0);
3969 
3970     setcursor();	    /* put cursor back where it belongs */
3971 }
3972 #endif
3973 
3974 #ifdef FEAT_SCROLLBIND
3975 /*
3976  * When "check" is FALSE, prepare for commands that scroll the window.
3977  * When "check" is TRUE, take care of scroll-binding after the window has
3978  * scrolled.  Called from normal_cmd() and edit().
3979  */
3980     void
3981 do_check_scrollbind(int check)
3982 {
3983     static win_T	*old_curwin = NULL;
3984     static linenr_T	old_topline = 0;
3985 #ifdef FEAT_DIFF
3986     static int		old_topfill = 0;
3987 #endif
3988     static buf_T	*old_buf = NULL;
3989     static colnr_T	old_leftcol = 0;
3990 
3991     if (check && curwin->w_p_scb)
3992     {
3993 	/* If a ":syncbind" command was just used, don't scroll, only reset
3994 	 * the values. */
3995 	if (did_syncbind)
3996 	    did_syncbind = FALSE;
3997 	else if (curwin == old_curwin)
3998 	{
3999 	    /*
4000 	     * Synchronize other windows, as necessary according to
4001 	     * 'scrollbind'.  Don't do this after an ":edit" command, except
4002 	     * when 'diff' is set.
4003 	     */
4004 	    if ((curwin->w_buffer == old_buf
4005 #ifdef FEAT_DIFF
4006 			|| curwin->w_p_diff
4007 #endif
4008 		)
4009 		&& (curwin->w_topline != old_topline
4010 #ifdef FEAT_DIFF
4011 			|| curwin->w_topfill != old_topfill
4012 #endif
4013 			|| curwin->w_leftcol != old_leftcol))
4014 	    {
4015 		check_scrollbind(curwin->w_topline - old_topline,
4016 			(long)(curwin->w_leftcol - old_leftcol));
4017 	    }
4018 	}
4019 	else if (vim_strchr(p_sbo, 'j')) /* jump flag set in 'scrollopt' */
4020 	{
4021 	    /*
4022 	     * When switching between windows, make sure that the relative
4023 	     * vertical offset is valid for the new window.  The relative
4024 	     * offset is invalid whenever another 'scrollbind' window has
4025 	     * scrolled to a point that would force the current window to
4026 	     * scroll past the beginning or end of its buffer.  When the
4027 	     * resync is performed, some of the other 'scrollbind' windows may
4028 	     * need to jump so that the current window's relative position is
4029 	     * visible on-screen.
4030 	     */
4031 	    check_scrollbind(curwin->w_topline - curwin->w_scbind_pos, 0L);
4032 	}
4033 	curwin->w_scbind_pos = curwin->w_topline;
4034     }
4035 
4036     old_curwin = curwin;
4037     old_topline = curwin->w_topline;
4038 #ifdef FEAT_DIFF
4039     old_topfill = curwin->w_topfill;
4040 #endif
4041     old_buf = curwin->w_buffer;
4042     old_leftcol = curwin->w_leftcol;
4043 }
4044 
4045 /*
4046  * Synchronize any windows that have "scrollbind" set, based on the
4047  * number of rows by which the current window has changed
4048  * (1998-11-02 16:21:01  R. Edward Ralston <[email protected]>)
4049  */
4050     void
4051 check_scrollbind(linenr_T topline_diff, long leftcol_diff)
4052 {
4053     int		want_ver;
4054     int		want_hor;
4055     win_T	*old_curwin = curwin;
4056     buf_T	*old_curbuf = curbuf;
4057     int		old_VIsual_select = VIsual_select;
4058     int		old_VIsual_active = VIsual_active;
4059     colnr_T	tgt_leftcol = curwin->w_leftcol;
4060     long	topline;
4061     long	y;
4062 
4063     /*
4064      * check 'scrollopt' string for vertical and horizontal scroll options
4065      */
4066     want_ver = (vim_strchr(p_sbo, 'v') && topline_diff != 0);
4067 #ifdef FEAT_DIFF
4068     want_ver |= old_curwin->w_p_diff;
4069 #endif
4070     want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || topline_diff != 0));
4071 
4072     /*
4073      * loop through the scrollbound windows and scroll accordingly
4074      */
4075     VIsual_select = VIsual_active = 0;
4076     FOR_ALL_WINDOWS(curwin)
4077     {
4078 	curbuf = curwin->w_buffer;
4079 	/* skip original window  and windows with 'noscrollbind' */
4080 	if (curwin != old_curwin && curwin->w_p_scb)
4081 	{
4082 	    /*
4083 	     * do the vertical scroll
4084 	     */
4085 	    if (want_ver)
4086 	    {
4087 #ifdef FEAT_DIFF
4088 		if (old_curwin->w_p_diff && curwin->w_p_diff)
4089 		{
4090 		    diff_set_topline(old_curwin, curwin);
4091 		}
4092 		else
4093 #endif
4094 		{
4095 		    curwin->w_scbind_pos += topline_diff;
4096 		    topline = curwin->w_scbind_pos;
4097 		    if (topline > curbuf->b_ml.ml_line_count)
4098 			topline = curbuf->b_ml.ml_line_count;
4099 		    if (topline < 1)
4100 			topline = 1;
4101 
4102 		    y = topline - curwin->w_topline;
4103 		    if (y > 0)
4104 			scrollup(y, FALSE);
4105 		    else
4106 			scrolldown(-y, FALSE);
4107 		}
4108 
4109 		redraw_later(VALID);
4110 		cursor_correct();
4111 #ifdef FEAT_WINDOWS
4112 		curwin->w_redr_status = TRUE;
4113 #endif
4114 	    }
4115 
4116 	    /*
4117 	     * do the horizontal scroll
4118 	     */
4119 	    if (want_hor && curwin->w_leftcol != tgt_leftcol)
4120 	    {
4121 		curwin->w_leftcol = tgt_leftcol;
4122 		leftcol_changed();
4123 	    }
4124 	}
4125     }
4126 
4127     /*
4128      * reset current-window
4129      */
4130     VIsual_select = old_VIsual_select;
4131     VIsual_active = old_VIsual_active;
4132     curwin = old_curwin;
4133     curbuf = old_curbuf;
4134 }
4135 #endif /* #ifdef FEAT_SCROLLBIND */
4136 
4137 /*
4138  * Command character that's ignored.
4139  * Used for CTRL-Q and CTRL-S to avoid problems with terminals that use
4140  * xon/xoff.
4141  */
4142     static void
4143 nv_ignore(cmdarg_T *cap)
4144 {
4145     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
4146 }
4147 
4148 /*
4149  * Command character that doesn't do anything, but unlike nv_ignore() does
4150  * start edit().  Used for "startinsert" executed while starting up.
4151  */
4152     static void
4153 nv_nop(cmdarg_T *cap UNUSED)
4154 {
4155 }
4156 
4157 /*
4158  * Command character doesn't exist.
4159  */
4160     static void
4161 nv_error(cmdarg_T *cap)
4162 {
4163     clearopbeep(cap->oap);
4164 }
4165 
4166 /*
4167  * <Help> and <F1> commands.
4168  */
4169     static void
4170 nv_help(cmdarg_T *cap)
4171 {
4172     if (!checkclearopq(cap->oap))
4173 	ex_help(NULL);
4174 }
4175 
4176 /*
4177  * CTRL-A and CTRL-X: Add or subtract from letter or number under cursor.
4178  */
4179     static void
4180 nv_addsub(cmdarg_T *cap)
4181 {
4182     if (!VIsual_active && cap->oap->op_type == OP_NOP)
4183     {
4184 	prep_redo_cmd(cap);
4185 	cap->oap->op_type = cap->cmdchar == Ctrl_A ?  OP_NR_ADD : OP_NR_SUB;
4186 	op_addsub(cap->oap, cap->count1, cap->arg);
4187 	cap->oap->op_type = OP_NOP;
4188     }
4189     else if (VIsual_active)
4190 	nv_operator(cap);
4191     else
4192 	clearop(cap->oap);
4193 }
4194 
4195 /*
4196  * CTRL-F, CTRL-B, etc: Scroll page up or down.
4197  */
4198     static void
4199 nv_page(cmdarg_T *cap)
4200 {
4201     if (!checkclearop(cap->oap))
4202     {
4203 #ifdef FEAT_WINDOWS
4204 	if (mod_mask & MOD_MASK_CTRL)
4205 	{
4206 	    /* <C-PageUp>: tab page back; <C-PageDown>: tab page forward */
4207 	    if (cap->arg == BACKWARD)
4208 		goto_tabpage(-(int)cap->count1);
4209 	    else
4210 		goto_tabpage((int)cap->count0);
4211 	}
4212 	else
4213 #endif
4214 	(void)onepage(cap->arg, cap->count1);
4215     }
4216 }
4217 
4218 /*
4219  * Implementation of "gd" and "gD" command.
4220  */
4221     static void
4222 nv_gd(
4223     oparg_T	*oap,
4224     int		nchar,
4225     int		thisblock)	/* 1 for "1gd" and "1gD" */
4226 {
4227     int		len;
4228     char_u	*ptr;
4229 
4230     if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
4231 	    || find_decl(ptr, len, nchar == 'd', thisblock, SEARCH_START)
4232 								      == FAIL)
4233 	clearopbeep(oap);
4234 #ifdef FEAT_FOLDING
4235     else if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
4236 	foldOpenCursor();
4237 #endif
4238 }
4239 
4240 /*
4241  * Search for variable declaration of "ptr[len]".
4242  * When "locally" is TRUE in the current function ("gd"), otherwise in the
4243  * current file ("gD").
4244  * When "thisblock" is TRUE check the {} block scope.
4245  * Return FAIL when not found.
4246  */
4247     int
4248 find_decl(
4249     char_u	*ptr,
4250     int		len,
4251     int		locally,
4252     int		thisblock,
4253     int		flags_arg)	/* flags passed to searchit() */
4254 {
4255     char_u	*pat;
4256     pos_T	old_pos;
4257     pos_T	par_pos;
4258     pos_T	found_pos;
4259     int		t;
4260     int		save_p_ws;
4261     int		save_p_scs;
4262     int		retval = OK;
4263     int		incll;
4264     int		searchflags = flags_arg;
4265 
4266     if ((pat = alloc(len + 7)) == NULL)
4267 	return FAIL;
4268 
4269     /* Put "\V" before the pattern to avoid that the special meaning of "."
4270      * and "~" causes trouble. */
4271     sprintf((char *)pat, vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
4272 								    len, ptr);
4273     old_pos = curwin->w_cursor;
4274     save_p_ws = p_ws;
4275     save_p_scs = p_scs;
4276     p_ws = FALSE;	/* don't wrap around end of file now */
4277     p_scs = FALSE;	/* don't switch ignorecase off now */
4278 
4279     /*
4280      * With "gD" go to line 1.
4281      * With "gd" Search back for the start of the current function, then go
4282      * back until a blank line.  If this fails go to line 1.
4283      */
4284     if (!locally || !findpar(&incll, BACKWARD, 1L, '{', FALSE))
4285     {
4286 	setpcmark();			/* Set in findpar() otherwise */
4287 	curwin->w_cursor.lnum = 1;
4288 	par_pos = curwin->w_cursor;
4289     }
4290     else
4291     {
4292 	par_pos = curwin->w_cursor;
4293 	while (curwin->w_cursor.lnum > 1 && *skipwhite(ml_get_curline()) != NUL)
4294 	    --curwin->w_cursor.lnum;
4295     }
4296     curwin->w_cursor.col = 0;
4297 
4298     /* Search forward for the identifier, ignore comment lines. */
4299     clearpos(&found_pos);
4300     for (;;)
4301     {
4302 	t = searchit(curwin, curbuf, &curwin->w_cursor, FORWARD,
4303 			    pat, 1L, searchflags, RE_LAST, (linenr_T)0, NULL);
4304 	if (curwin->w_cursor.lnum >= old_pos.lnum)
4305 	    t = FAIL;	/* match after start is failure too */
4306 
4307 	if (thisblock && t != FAIL)
4308 	{
4309 	    pos_T	*pos;
4310 
4311 	    /* Check that the block the match is in doesn't end before the
4312 	     * position where we started the search from. */
4313 	    if ((pos = findmatchlimit(NULL, '}', FM_FORWARD,
4314 		     (int)(old_pos.lnum - curwin->w_cursor.lnum + 1))) != NULL
4315 		    && pos->lnum < old_pos.lnum)
4316 		continue;
4317 	}
4318 
4319 	if (t == FAIL)
4320 	{
4321 	    /* If we previously found a valid position, use it. */
4322 	    if (found_pos.lnum != 0)
4323 	    {
4324 		curwin->w_cursor = found_pos;
4325 		t = OK;
4326 	    }
4327 	    break;
4328 	}
4329 #ifdef FEAT_COMMENTS
4330 	if (get_leader_len(ml_get_curline(), NULL, FALSE, TRUE) > 0)
4331 	{
4332 	    /* Ignore this line, continue at start of next line. */
4333 	    ++curwin->w_cursor.lnum;
4334 	    curwin->w_cursor.col = 0;
4335 	    continue;
4336 	}
4337 #endif
4338 	if (!locally)	/* global search: use first match found */
4339 	    break;
4340 	if (curwin->w_cursor.lnum >= par_pos.lnum)
4341 	{
4342 	    /* If we previously found a valid position, use it. */
4343 	    if (found_pos.lnum != 0)
4344 		curwin->w_cursor = found_pos;
4345 	    break;
4346 	}
4347 
4348 	/* For finding a local variable and the match is before the "{" search
4349 	 * to find a later match.  For K&R style function declarations this
4350 	 * skips the function header without types.  Remove SEARCH_START from
4351 	 * flags to avoid getting stuck at one position. */
4352 	found_pos = curwin->w_cursor;
4353 	searchflags &= ~SEARCH_START;
4354     }
4355 
4356     if (t == FAIL)
4357     {
4358 	retval = FAIL;
4359 	curwin->w_cursor = old_pos;
4360     }
4361     else
4362     {
4363 	curwin->w_set_curswant = TRUE;
4364 	/* "n" searches forward now */
4365 	reset_search_dir();
4366     }
4367 
4368     vim_free(pat);
4369     p_ws = save_p_ws;
4370     p_scs = save_p_scs;
4371 
4372     return retval;
4373 }
4374 
4375 /*
4376  * Move 'dist' lines in direction 'dir', counting lines by *screen*
4377  * lines rather than lines in the file.
4378  * 'dist' must be positive.
4379  *
4380  * Return OK if able to move cursor, FAIL otherwise.
4381  */
4382     static int
4383 nv_screengo(oparg_T *oap, int dir, long dist)
4384 {
4385     int		linelen = linetabsize(ml_get_curline());
4386     int		retval = OK;
4387     int		atend = FALSE;
4388     int		n;
4389     int		col_off1;	/* margin offset for first screen line */
4390     int		col_off2;	/* margin offset for wrapped screen line */
4391     int		width1;		/* text width for first screen line */
4392     int		width2;		/* test width for wrapped screen line */
4393 
4394     oap->motion_type = MCHAR;
4395     oap->inclusive = (curwin->w_curswant == MAXCOL);
4396 
4397     col_off1 = curwin_col_off();
4398     col_off2 = col_off1 - curwin_col_off2();
4399     width1 = W_WIDTH(curwin) - col_off1;
4400     width2 = W_WIDTH(curwin) - col_off2;
4401     if (width2 == 0)
4402 	width2 = 1; /* avoid divide by zero */
4403 
4404 #ifdef FEAT_WINDOWS
4405     if (curwin->w_width != 0)
4406 #endif
4407     {
4408       /*
4409        * Instead of sticking at the last character of the buffer line we
4410        * try to stick in the last column of the screen.
4411        */
4412       if (curwin->w_curswant == MAXCOL)
4413       {
4414 	atend = TRUE;
4415 	validate_virtcol();
4416 	if (width1 <= 0)
4417 	    curwin->w_curswant = 0;
4418 	else
4419 	{
4420 	    curwin->w_curswant = width1 - 1;
4421 	    if (curwin->w_virtcol > curwin->w_curswant)
4422 		curwin->w_curswant += ((curwin->w_virtcol
4423 			     - curwin->w_curswant - 1) / width2 + 1) * width2;
4424 	}
4425       }
4426       else
4427       {
4428 	if (linelen > width1)
4429 	    n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4430 	else
4431 	    n = width1;
4432 	if (curwin->w_curswant > (colnr_T)n + 1)
4433 	    curwin->w_curswant -= ((curwin->w_curswant - n) / width2 + 1)
4434 								     * width2;
4435       }
4436 
4437       while (dist--)
4438       {
4439 	if (dir == BACKWARD)
4440 	{
4441 	    if ((long)curwin->w_curswant >= width2)
4442 		/* move back within line */
4443 		curwin->w_curswant -= width2;
4444 	    else
4445 	    {
4446 		/* to previous line */
4447 		if (curwin->w_cursor.lnum == 1)
4448 		{
4449 		    retval = FAIL;
4450 		    break;
4451 		}
4452 		--curwin->w_cursor.lnum;
4453 #ifdef FEAT_FOLDING
4454 		/* Move to the start of a closed fold.  Don't do that when
4455 		 * 'foldopen' contains "all": it will open in a moment. */
4456 		if (!(fdo_flags & FDO_ALL))
4457 		    (void)hasFolding(curwin->w_cursor.lnum,
4458 						&curwin->w_cursor.lnum, NULL);
4459 #endif
4460 		linelen = linetabsize(ml_get_curline());
4461 		if (linelen > width1)
4462 		    curwin->w_curswant += (((linelen - width1 - 1) / width2)
4463 								+ 1) * width2;
4464 	    }
4465 	}
4466 	else /* dir == FORWARD */
4467 	{
4468 	    if (linelen > width1)
4469 		n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4470 	    else
4471 		n = width1;
4472 	    if (curwin->w_curswant + width2 < (colnr_T)n)
4473 		/* move forward within line */
4474 		curwin->w_curswant += width2;
4475 	    else
4476 	    {
4477 		/* to next line */
4478 #ifdef FEAT_FOLDING
4479 		/* Move to the end of a closed fold. */
4480 		(void)hasFolding(curwin->w_cursor.lnum, NULL,
4481 						      &curwin->w_cursor.lnum);
4482 #endif
4483 		if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4484 		{
4485 		    retval = FAIL;
4486 		    break;
4487 		}
4488 		curwin->w_cursor.lnum++;
4489 		curwin->w_curswant %= width2;
4490 		linelen = linetabsize(ml_get_curline());
4491 	    }
4492 	}
4493       }
4494     }
4495 
4496     if (virtual_active() && atend)
4497 	coladvance(MAXCOL);
4498     else
4499 	coladvance(curwin->w_curswant);
4500 
4501 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
4502     if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
4503     {
4504 	colnr_T virtcol;
4505 
4506 	/*
4507 	 * Check for landing on a character that got split at the end of the
4508 	 * last line.  We want to advance a screenline, not end up in the same
4509 	 * screenline or move two screenlines.
4510 	 */
4511 	validate_virtcol();
4512 	virtcol = curwin->w_virtcol;
4513 # if defined(FEAT_LINEBREAK)
4514 	if (virtcol > (colnr_T)width1 && *p_sbr != NUL)
4515 	    virtcol -= vim_strsize(p_sbr);
4516 # endif
4517 
4518 	if (virtcol > curwin->w_curswant
4519 		&& (curwin->w_curswant < (colnr_T)width1
4520 		    ? (curwin->w_curswant > (colnr_T)width1 / 2)
4521 		    : ((curwin->w_curswant - width1) % width2
4522 						      > (colnr_T)width2 / 2)))
4523 	    --curwin->w_cursor.col;
4524     }
4525 #endif
4526 
4527     if (atend)
4528 	curwin->w_curswant = MAXCOL;	    /* stick in the last column */
4529 
4530     return retval;
4531 }
4532 
4533 #ifdef FEAT_MOUSE
4534 /*
4535  * Mouse scroll wheel: Default action is to scroll three lines, or one page
4536  * when Shift or Ctrl is used.
4537  * K_MOUSEUP (cap->arg == 1) or K_MOUSEDOWN (cap->arg == 0) or
4538  * K_MOUSELEFT (cap->arg == -1) or K_MOUSERIGHT (cap->arg == -2)
4539  */
4540     static void
4541 nv_mousescroll(cmdarg_T *cap)
4542 {
4543 # ifdef FEAT_WINDOWS
4544     win_T *old_curwin = curwin;
4545 
4546     if (mouse_row >= 0 && mouse_col >= 0)
4547     {
4548 	int row, col;
4549 
4550 	row = mouse_row;
4551 	col = mouse_col;
4552 
4553 	/* find the window at the pointer coordinates */
4554 	curwin = mouse_find_win(&row, &col);
4555 	curbuf = curwin->w_buffer;
4556     }
4557 # endif
4558 
4559     if (cap->arg == MSCR_UP || cap->arg == MSCR_DOWN)
4560     {
4561 	if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4562 	{
4563 	    (void)onepage(cap->arg ? FORWARD : BACKWARD, 1L);
4564 	}
4565 	else
4566 	{
4567 	    cap->count1 = 3;
4568 	    cap->count0 = 3;
4569 	    nv_scroll_line(cap);
4570 	}
4571     }
4572 # ifdef FEAT_GUI
4573     else
4574     {
4575 	/* Horizontal scroll - only allowed when 'wrap' is disabled */
4576 	if (!curwin->w_p_wrap)
4577 	{
4578 	    int val, step = 6;
4579 
4580 	    if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4581 		step = W_WIDTH(curwin);
4582 	    val = curwin->w_leftcol + (cap->arg == MSCR_RIGHT ? -step : +step);
4583 	    if (val < 0)
4584 		val = 0;
4585 
4586 	    gui_do_horiz_scroll(val, TRUE);
4587 	}
4588     }
4589 # endif
4590 
4591 # ifdef FEAT_WINDOWS
4592     curwin->w_redr_status = TRUE;
4593 
4594     curwin = old_curwin;
4595     curbuf = curwin->w_buffer;
4596 # endif
4597 }
4598 
4599 /*
4600  * Mouse clicks and drags.
4601  */
4602     static void
4603 nv_mouse(cmdarg_T *cap)
4604 {
4605     (void)do_mouse(cap->oap, cap->cmdchar, BACKWARD, cap->count1, 0);
4606 }
4607 #endif
4608 
4609 /*
4610  * Handle CTRL-E and CTRL-Y commands: scroll a line up or down.
4611  * cap->arg must be TRUE for CTRL-E.
4612  */
4613     static void
4614 nv_scroll_line(cmdarg_T *cap)
4615 {
4616     if (!checkclearop(cap->oap))
4617 	scroll_redraw(cap->arg, cap->count1);
4618 }
4619 
4620 /*
4621  * Scroll "count" lines up or down, and redraw.
4622  */
4623     void
4624 scroll_redraw(int up, long count)
4625 {
4626     linenr_T	prev_topline = curwin->w_topline;
4627 #ifdef FEAT_DIFF
4628     int		prev_topfill = curwin->w_topfill;
4629 #endif
4630     linenr_T	prev_lnum = curwin->w_cursor.lnum;
4631 
4632     if (up)
4633 	scrollup(count, TRUE);
4634     else
4635 	scrolldown(count, TRUE);
4636     if (p_so)
4637     {
4638 	/* Adjust the cursor position for 'scrolloff'.  Mark w_topline as
4639 	 * valid, otherwise the screen jumps back at the end of the file. */
4640 	cursor_correct();
4641 	check_cursor_moved(curwin);
4642 	curwin->w_valid |= VALID_TOPLINE;
4643 
4644 	/* If moved back to where we were, at least move the cursor, otherwise
4645 	 * we get stuck at one position.  Don't move the cursor up if the
4646 	 * first line of the buffer is already on the screen */
4647 	while (curwin->w_topline == prev_topline
4648 #ifdef FEAT_DIFF
4649 		&& curwin->w_topfill == prev_topfill
4650 #endif
4651 		)
4652 	{
4653 	    if (up)
4654 	    {
4655 		if (curwin->w_cursor.lnum > prev_lnum
4656 			|| cursor_down(1L, FALSE) == FAIL)
4657 		    break;
4658 	    }
4659 	    else
4660 	    {
4661 		if (curwin->w_cursor.lnum < prev_lnum
4662 			|| prev_topline == 1L
4663 			|| cursor_up(1L, FALSE) == FAIL)
4664 		    break;
4665 	    }
4666 	    /* Mark w_topline as valid, otherwise the screen jumps back at the
4667 	     * end of the file. */
4668 	    check_cursor_moved(curwin);
4669 	    curwin->w_valid |= VALID_TOPLINE;
4670 	}
4671     }
4672     if (curwin->w_cursor.lnum != prev_lnum)
4673 	coladvance(curwin->w_curswant);
4674     redraw_later(VALID);
4675 }
4676 
4677 /*
4678  * Commands that start with "z".
4679  */
4680     static void
4681 nv_zet(cmdarg_T *cap)
4682 {
4683     long	n;
4684     colnr_T	col;
4685     int		nchar = cap->nchar;
4686 #ifdef FEAT_FOLDING
4687     long	old_fdl = curwin->w_p_fdl;
4688     int		old_fen = curwin->w_p_fen;
4689 #endif
4690 #ifdef FEAT_SPELL
4691     int		undo = FALSE;
4692 #endif
4693 
4694     if (VIM_ISDIGIT(nchar))
4695     {
4696 	/*
4697 	 * "z123{nchar}": edit the count before obtaining {nchar}
4698 	 */
4699 	if (checkclearop(cap->oap))
4700 	    return;
4701 	n = nchar - '0';
4702 	for (;;)
4703 	{
4704 #ifdef USE_ON_FLY_SCROLL
4705 	    dont_scroll = TRUE;		/* disallow scrolling here */
4706 #endif
4707 	    ++no_mapping;
4708 	    ++allow_keys;   /* no mapping for nchar, but allow key codes */
4709 	    nchar = plain_vgetc();
4710 	    LANGMAP_ADJUST(nchar, TRUE);
4711 	    --no_mapping;
4712 	    --allow_keys;
4713 #ifdef FEAT_CMDL_INFO
4714 	    (void)add_to_showcmd(nchar);
4715 #endif
4716 	    if (nchar == K_DEL || nchar == K_KDEL)
4717 		n /= 10;
4718 	    else if (VIM_ISDIGIT(nchar))
4719 		n = n * 10 + (nchar - '0');
4720 	    else if (nchar == CAR)
4721 	    {
4722 #ifdef FEAT_GUI
4723 		need_mouse_correct = TRUE;
4724 #endif
4725 		win_setheight((int)n);
4726 		break;
4727 	    }
4728 	    else if (nchar == 'l'
4729 		    || nchar == 'h'
4730 		    || nchar == K_LEFT
4731 		    || nchar == K_RIGHT)
4732 	    {
4733 		cap->count1 = n ? n * cap->count1 : cap->count1;
4734 		goto dozet;
4735 	    }
4736 	    else
4737 	    {
4738 		clearopbeep(cap->oap);
4739 		break;
4740 	    }
4741 	}
4742 	cap->oap->op_type = OP_NOP;
4743 	return;
4744     }
4745 
4746 dozet:
4747     if (
4748 #ifdef FEAT_FOLDING
4749 	    /* "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
4750 	     * and "zC" only in Visual mode.  "zj" and "zk" are motion
4751 	     * commands. */
4752 	    cap->nchar != 'f' && cap->nchar != 'F'
4753 	    && !(VIsual_active && vim_strchr((char_u *)"dcCoO", cap->nchar))
4754 	    && cap->nchar != 'j' && cap->nchar != 'k'
4755 	    &&
4756 #endif
4757 	    checkclearop(cap->oap))
4758 	return;
4759 
4760     /*
4761      * For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
4762      * If line number given, set cursor.
4763      */
4764     if ((vim_strchr((char_u *)"+\r\nt.z^-b", nchar) != NULL)
4765 	    && cap->count0
4766 	    && cap->count0 != curwin->w_cursor.lnum)
4767     {
4768 	setpcmark();
4769 	if (cap->count0 > curbuf->b_ml.ml_line_count)
4770 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4771 	else
4772 	    curwin->w_cursor.lnum = cap->count0;
4773 	check_cursor_col();
4774     }
4775 
4776     switch (nchar)
4777     {
4778 		/* "z+", "z<CR>" and "zt": put cursor at top of screen */
4779     case '+':
4780 		if (cap->count0 == 0)
4781 		{
4782 		    /* No count given: put cursor at the line below screen */
4783 		    validate_botline();	/* make sure w_botline is valid */
4784 		    if (curwin->w_botline > curbuf->b_ml.ml_line_count)
4785 			curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4786 		    else
4787 			curwin->w_cursor.lnum = curwin->w_botline;
4788 		}
4789 		/* FALLTHROUGH */
4790     case NL:
4791     case CAR:
4792     case K_KENTER:
4793 		beginline(BL_WHITE | BL_FIX);
4794 		/* FALLTHROUGH */
4795 
4796     case 't':	scroll_cursor_top(0, TRUE);
4797 		redraw_later(VALID);
4798 		set_fraction(curwin);
4799 		break;
4800 
4801 		/* "z." and "zz": put cursor in middle of screen */
4802     case '.':	beginline(BL_WHITE | BL_FIX);
4803 		/* FALLTHROUGH */
4804 
4805     case 'z':	scroll_cursor_halfway(TRUE);
4806 		redraw_later(VALID);
4807 		set_fraction(curwin);
4808 		break;
4809 
4810 		/* "z^", "z-" and "zb": put cursor at bottom of screen */
4811     case '^':	/* Strange Vi behavior: <count>z^ finds line at top of window
4812 		 * when <count> is at bottom of window, and puts that one at
4813 		 * bottom of window. */
4814 		if (cap->count0 != 0)
4815 		{
4816 		    scroll_cursor_bot(0, TRUE);
4817 		    curwin->w_cursor.lnum = curwin->w_topline;
4818 		}
4819 		else if (curwin->w_topline == 1)
4820 		    curwin->w_cursor.lnum = 1;
4821 		else
4822 		    curwin->w_cursor.lnum = curwin->w_topline - 1;
4823 		/* FALLTHROUGH */
4824     case '-':
4825 		beginline(BL_WHITE | BL_FIX);
4826 		/* FALLTHROUGH */
4827 
4828     case 'b':	scroll_cursor_bot(0, TRUE);
4829 		redraw_later(VALID);
4830 		set_fraction(curwin);
4831 		break;
4832 
4833 		/* "zH" - scroll screen right half-page */
4834     case 'H':
4835 		cap->count1 *= W_WIDTH(curwin) / 2;
4836 		/* FALLTHROUGH */
4837 
4838 		/* "zh" - scroll screen to the right */
4839     case 'h':
4840     case K_LEFT:
4841 		if (!curwin->w_p_wrap)
4842 		{
4843 		    if ((colnr_T)cap->count1 > curwin->w_leftcol)
4844 			curwin->w_leftcol = 0;
4845 		    else
4846 			curwin->w_leftcol -= (colnr_T)cap->count1;
4847 		    leftcol_changed();
4848 		}
4849 		break;
4850 
4851 		/* "zL" - scroll screen left half-page */
4852     case 'L':	cap->count1 *= W_WIDTH(curwin) / 2;
4853 		/* FALLTHROUGH */
4854 
4855 		/* "zl" - scroll screen to the left */
4856     case 'l':
4857     case K_RIGHT:
4858 		if (!curwin->w_p_wrap)
4859 		{
4860 		    /* scroll the window left */
4861 		    curwin->w_leftcol += (colnr_T)cap->count1;
4862 		    leftcol_changed();
4863 		}
4864 		break;
4865 
4866 		/* "zs" - scroll screen, cursor at the start */
4867     case 's':	if (!curwin->w_p_wrap)
4868 		{
4869 #ifdef FEAT_FOLDING
4870 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4871 			col = 0;	/* like the cursor is in col 0 */
4872 		    else
4873 #endif
4874 		    getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
4875 		    if ((long)col > p_siso)
4876 			col -= p_siso;
4877 		    else
4878 			col = 0;
4879 		    if (curwin->w_leftcol != col)
4880 		    {
4881 			curwin->w_leftcol = col;
4882 			redraw_later(NOT_VALID);
4883 		    }
4884 		}
4885 		break;
4886 
4887 		/* "ze" - scroll screen, cursor at the end */
4888     case 'e':	if (!curwin->w_p_wrap)
4889 		{
4890 #ifdef FEAT_FOLDING
4891 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4892 			col = 0;	/* like the cursor is in col 0 */
4893 		    else
4894 #endif
4895 		    getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
4896 		    n = W_WIDTH(curwin) - curwin_col_off();
4897 		    if ((long)col + p_siso < n)
4898 			col = 0;
4899 		    else
4900 			col = col + p_siso - n + 1;
4901 		    if (curwin->w_leftcol != col)
4902 		    {
4903 			curwin->w_leftcol = col;
4904 			redraw_later(NOT_VALID);
4905 		    }
4906 		}
4907 		break;
4908 
4909 #ifdef FEAT_FOLDING
4910 		/* "zF": create fold command */
4911 		/* "zf": create fold operator */
4912     case 'F':
4913     case 'f':   if (foldManualAllowed(TRUE))
4914 		{
4915 		    cap->nchar = 'f';
4916 		    nv_operator(cap);
4917 		    curwin->w_p_fen = TRUE;
4918 
4919 		    /* "zF" is like "zfzf" */
4920 		    if (nchar == 'F' && cap->oap->op_type == OP_FOLD)
4921 		    {
4922 			nv_operator(cap);
4923 			finish_op = TRUE;
4924 		    }
4925 		}
4926 		else
4927 		    clearopbeep(cap->oap);
4928 		break;
4929 
4930 		/* "zd": delete fold at cursor */
4931 		/* "zD": delete fold at cursor recursively */
4932     case 'd':
4933     case 'D':	if (foldManualAllowed(FALSE))
4934 		{
4935 		    if (VIsual_active)
4936 			nv_operator(cap);
4937 		    else
4938 			deleteFold(curwin->w_cursor.lnum,
4939 				  curwin->w_cursor.lnum, nchar == 'D', FALSE);
4940 		}
4941 		break;
4942 
4943 		/* "zE": erase all folds */
4944     case 'E':	if (foldmethodIsManual(curwin))
4945 		{
4946 		    clearFolding(curwin);
4947 		    changed_window_setting();
4948 		}
4949 		else if (foldmethodIsMarker(curwin))
4950 		    deleteFold((linenr_T)1, curbuf->b_ml.ml_line_count,
4951 								 TRUE, FALSE);
4952 		else
4953 		    EMSG(_("E352: Cannot erase folds with current 'foldmethod'"));
4954 		break;
4955 
4956 		/* "zn": fold none: reset 'foldenable' */
4957     case 'n':	curwin->w_p_fen = FALSE;
4958 		break;
4959 
4960 		/* "zN": fold Normal: set 'foldenable' */
4961     case 'N':	curwin->w_p_fen = TRUE;
4962 		break;
4963 
4964 		/* "zi": invert folding: toggle 'foldenable' */
4965     case 'i':	curwin->w_p_fen = !curwin->w_p_fen;
4966 		break;
4967 
4968 		/* "za": open closed fold or close open fold at cursor */
4969     case 'a':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4970 		    openFold(curwin->w_cursor.lnum, cap->count1);
4971 		else
4972 		{
4973 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4974 		    curwin->w_p_fen = TRUE;
4975 		}
4976 		break;
4977 
4978 		/* "zA": open fold at cursor recursively */
4979     case 'A':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4980 		    openFoldRecurse(curwin->w_cursor.lnum);
4981 		else
4982 		{
4983 		    closeFoldRecurse(curwin->w_cursor.lnum);
4984 		    curwin->w_p_fen = TRUE;
4985 		}
4986 		break;
4987 
4988 		/* "zo": open fold at cursor or Visual area */
4989     case 'o':	if (VIsual_active)
4990 		    nv_operator(cap);
4991 		else
4992 		    openFold(curwin->w_cursor.lnum, cap->count1);
4993 		break;
4994 
4995 		/* "zO": open fold recursively */
4996     case 'O':	if (VIsual_active)
4997 		    nv_operator(cap);
4998 		else
4999 		    openFoldRecurse(curwin->w_cursor.lnum);
5000 		break;
5001 
5002 		/* "zc": close fold at cursor or Visual area */
5003     case 'c':	if (VIsual_active)
5004 		    nv_operator(cap);
5005 		else
5006 		    closeFold(curwin->w_cursor.lnum, cap->count1);
5007 		curwin->w_p_fen = TRUE;
5008 		break;
5009 
5010 		/* "zC": close fold recursively */
5011     case 'C':	if (VIsual_active)
5012 		    nv_operator(cap);
5013 		else
5014 		    closeFoldRecurse(curwin->w_cursor.lnum);
5015 		curwin->w_p_fen = TRUE;
5016 		break;
5017 
5018 		/* "zv": open folds at the cursor */
5019     case 'v':	foldOpenCursor();
5020 		break;
5021 
5022 		/* "zx": re-apply 'foldlevel' and open folds at the cursor */
5023     case 'x':	curwin->w_p_fen = TRUE;
5024 		curwin->w_foldinvalid = TRUE;	/* recompute folds */
5025 		newFoldLevel();			/* update right now */
5026 		foldOpenCursor();
5027 		break;
5028 
5029 		/* "zX": undo manual opens/closes, re-apply 'foldlevel' */
5030     case 'X':	curwin->w_p_fen = TRUE;
5031 		curwin->w_foldinvalid = TRUE;	/* recompute folds */
5032 		old_fdl = -1;			/* force an update */
5033 		break;
5034 
5035 		/* "zm": fold more */
5036     case 'm':	if (curwin->w_p_fdl > 0)
5037 		{
5038 		    curwin->w_p_fdl -= cap->count1;
5039 		    if (curwin->w_p_fdl < 0)
5040 			curwin->w_p_fdl = 0;
5041 		}
5042 		old_fdl = -1;		/* force an update */
5043 		curwin->w_p_fen = TRUE;
5044 		break;
5045 
5046 		/* "zM": close all folds */
5047     case 'M':	curwin->w_p_fdl = 0;
5048 		old_fdl = -1;		/* force an update */
5049 		curwin->w_p_fen = TRUE;
5050 		break;
5051 
5052 		/* "zr": reduce folding */
5053     case 'r':	curwin->w_p_fdl += cap->count1;
5054 		{
5055 		    int d = getDeepestNesting();
5056 
5057 		    if (curwin->w_p_fdl >= d)
5058 			curwin->w_p_fdl = d;
5059 		}
5060 		break;
5061 
5062 		/* "zR": open all folds */
5063     case 'R':	curwin->w_p_fdl = getDeepestNesting();
5064 		old_fdl = -1;		/* force an update */
5065 		break;
5066 
5067     case 'j':	/* "zj" move to next fold downwards */
5068     case 'k':	/* "zk" move to next fold upwards */
5069 		if (foldMoveTo(TRUE, nchar == 'j' ? FORWARD : BACKWARD,
5070 							  cap->count1) == FAIL)
5071 		    clearopbeep(cap->oap);
5072 		break;
5073 
5074 #endif /* FEAT_FOLDING */
5075 
5076 #ifdef FEAT_SPELL
5077     case 'u':	/* "zug" and "zuw": undo "zg" and "zw" */
5078 		++no_mapping;
5079 		++allow_keys;   /* no mapping for nchar, but allow key codes */
5080 		nchar = plain_vgetc();
5081 		LANGMAP_ADJUST(nchar, TRUE);
5082 		--no_mapping;
5083 		--allow_keys;
5084 #ifdef FEAT_CMDL_INFO
5085 		(void)add_to_showcmd(nchar);
5086 #endif
5087 		if (vim_strchr((char_u *)"gGwW", nchar) == NULL)
5088 		{
5089 		    clearopbeep(cap->oap);
5090 		    break;
5091 		}
5092 		undo = TRUE;
5093 		/*FALLTHROUGH*/
5094 
5095     case 'g':	/* "zg": add good word to word list */
5096     case 'w':	/* "zw": add wrong word to word list */
5097     case 'G':	/* "zG": add good word to temp word list */
5098     case 'W':	/* "zW": add wrong word to temp word list */
5099 		{
5100 		    char_u  *ptr = NULL;
5101 		    int	    len;
5102 
5103 		    if (checkclearop(cap->oap))
5104 			break;
5105 		    if (VIsual_active && get_visual_text(cap, &ptr, &len)
5106 								      == FAIL)
5107 			return;
5108 		    if (ptr == NULL)
5109 		    {
5110 			pos_T	pos = curwin->w_cursor;
5111 
5112 			/* Find bad word under the cursor.  When 'spell' is
5113 			 * off this fails and find_ident_under_cursor() is
5114 			 * used below. */
5115 			emsg_off++;
5116 			len = spell_move_to(curwin, FORWARD, TRUE, TRUE, NULL);
5117 			emsg_off--;
5118 			if (len != 0 && curwin->w_cursor.col <= pos.col)
5119 			    ptr = ml_get_pos(&curwin->w_cursor);
5120 			curwin->w_cursor = pos;
5121 		    }
5122 
5123 		    if (ptr == NULL && (len = find_ident_under_cursor(&ptr,
5124 							    FIND_IDENT)) == 0)
5125 			return;
5126 		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W',
5127 					    (nchar == 'G' || nchar == 'W')
5128 						       ? 0 : (int)cap->count1,
5129 					    undo);
5130 		}
5131 		break;
5132 
5133     case '=':	/* "z=": suggestions for a badly spelled word  */
5134 		if (!checkclearop(cap->oap))
5135 		    spell_suggest((int)cap->count0);
5136 		break;
5137 #endif
5138 
5139     default:	clearopbeep(cap->oap);
5140     }
5141 
5142 #ifdef FEAT_FOLDING
5143     /* Redraw when 'foldenable' changed */
5144     if (old_fen != curwin->w_p_fen)
5145     {
5146 # ifdef FEAT_DIFF
5147 	win_T	    *wp;
5148 
5149 	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
5150 	{
5151 	    /* Adjust 'foldenable' in diff-synced windows. */
5152 	    FOR_ALL_WINDOWS(wp)
5153 	    {
5154 		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
5155 		{
5156 		    wp->w_p_fen = curwin->w_p_fen;
5157 		    changed_window_setting_win(wp);
5158 		}
5159 	    }
5160 	}
5161 # endif
5162 	changed_window_setting();
5163     }
5164 
5165     /* Redraw when 'foldlevel' changed. */
5166     if (old_fdl != curwin->w_p_fdl)
5167 	newFoldLevel();
5168 #endif
5169 }
5170 
5171 #ifdef FEAT_GUI
5172 /*
5173  * Vertical scrollbar movement.
5174  */
5175     static void
5176 nv_ver_scrollbar(cmdarg_T *cap)
5177 {
5178     if (cap->oap->op_type != OP_NOP)
5179 	clearopbeep(cap->oap);
5180 
5181     /* Even if an operator was pending, we still want to scroll */
5182     gui_do_scroll();
5183 }
5184 
5185 /*
5186  * Horizontal scrollbar movement.
5187  */
5188     static void
5189 nv_hor_scrollbar(cmdarg_T *cap)
5190 {
5191     if (cap->oap->op_type != OP_NOP)
5192 	clearopbeep(cap->oap);
5193 
5194     /* Even if an operator was pending, we still want to scroll */
5195     gui_do_horiz_scroll(scrollbar_value, FALSE);
5196 }
5197 #endif
5198 
5199 #if defined(FEAT_GUI_TABLINE) || defined(PROTO)
5200 /*
5201  * Click in GUI tab.
5202  */
5203     static void
5204 nv_tabline(cmdarg_T *cap)
5205 {
5206     if (cap->oap->op_type != OP_NOP)
5207 	clearopbeep(cap->oap);
5208 
5209     /* Even if an operator was pending, we still want to jump tabs. */
5210     goto_tabpage(current_tab);
5211 }
5212 
5213 /*
5214  * Selected item in tab line menu.
5215  */
5216     static void
5217 nv_tabmenu(cmdarg_T *cap)
5218 {
5219     if (cap->oap->op_type != OP_NOP)
5220 	clearopbeep(cap->oap);
5221 
5222     /* Even if an operator was pending, we still want to jump tabs. */
5223     handle_tabmenu();
5224 }
5225 
5226 /*
5227  * Handle selecting an item of the GUI tab line menu.
5228  * Used in Normal and Insert mode.
5229  */
5230     void
5231 handle_tabmenu(void)
5232 {
5233     switch (current_tabmenu)
5234     {
5235 	case TABLINE_MENU_CLOSE:
5236 	    if (current_tab == 0)
5237 		do_cmdline_cmd((char_u *)"tabclose");
5238 	    else
5239 	    {
5240 		vim_snprintf((char *)IObuff, IOSIZE, "tabclose %d",
5241 								 current_tab);
5242 		do_cmdline_cmd(IObuff);
5243 	    }
5244 	    break;
5245 
5246 	case TABLINE_MENU_NEW:
5247 	    if (current_tab == 0)
5248 		do_cmdline_cmd((char_u *)"$tabnew");
5249 	    else
5250 	    {
5251 		vim_snprintf((char *)IObuff, IOSIZE, "%dtabnew",
5252 							     current_tab - 1);
5253 		do_cmdline_cmd(IObuff);
5254 	    }
5255 	    break;
5256 
5257 	case TABLINE_MENU_OPEN:
5258 	    if (current_tab == 0)
5259 		do_cmdline_cmd((char_u *)"browse $tabnew");
5260 	    else
5261 	    {
5262 		vim_snprintf((char *)IObuff, IOSIZE, "browse %dtabnew",
5263 							     current_tab - 1);
5264 		do_cmdline_cmd(IObuff);
5265 	    }
5266 	    break;
5267     }
5268 }
5269 #endif
5270 
5271 /*
5272  * "Q" command.
5273  */
5274     static void
5275 nv_exmode(cmdarg_T *cap)
5276 {
5277     /*
5278      * Ignore 'Q' in Visual mode, just give a beep.
5279      */
5280     if (VIsual_active)
5281 	vim_beep(BO_EX);
5282     else if (!checkclearop(cap->oap))
5283 	do_exmode(FALSE);
5284 }
5285 
5286 /*
5287  * Handle a ":" command.
5288  */
5289     static void
5290 nv_colon(cmdarg_T *cap)
5291 {
5292     int	    old_p_im;
5293     int	    cmd_result;
5294 
5295     if (VIsual_active)
5296 	nv_operator(cap);
5297     else
5298     {
5299 	if (cap->oap->op_type != OP_NOP)
5300 	{
5301 	    /* Using ":" as a movement is characterwise exclusive. */
5302 	    cap->oap->motion_type = MCHAR;
5303 	    cap->oap->inclusive = FALSE;
5304 	}
5305 	else if (cap->count0)
5306 	{
5307 	    /* translate "count:" into ":.,.+(count - 1)" */
5308 	    stuffcharReadbuff('.');
5309 	    if (cap->count0 > 1)
5310 	    {
5311 		stuffReadbuff((char_u *)",.+");
5312 		stuffnumReadbuff((long)cap->count0 - 1L);
5313 	    }
5314 	}
5315 
5316 	/* When typing, don't type below an old message */
5317 	if (KeyTyped)
5318 	    compute_cmdrow();
5319 
5320 	old_p_im = p_im;
5321 
5322 	/* get a command line and execute it */
5323 	cmd_result = do_cmdline(NULL, getexline, NULL,
5324 			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
5325 
5326 	/* If 'insertmode' changed, enter or exit Insert mode */
5327 	if (p_im != old_p_im)
5328 	{
5329 	    if (p_im)
5330 		restart_edit = 'i';
5331 	    else
5332 		restart_edit = 0;
5333 	}
5334 
5335 	if (cmd_result == FAIL)
5336 	    /* The Ex command failed, do not execute the operator. */
5337 	    clearop(cap->oap);
5338 	else if (cap->oap->op_type != OP_NOP
5339 		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
5340 		    || cap->oap->start.col >
5341 			       (colnr_T)STRLEN(ml_get(cap->oap->start.lnum))
5342 		    || did_emsg
5343 		    ))
5344 	    /* The start of the operator has become invalid by the Ex command.
5345 	     */
5346 	    clearopbeep(cap->oap);
5347     }
5348 }
5349 
5350 /*
5351  * Handle CTRL-G command.
5352  */
5353     static void
5354 nv_ctrlg(cmdarg_T *cap)
5355 {
5356     if (VIsual_active)	/* toggle Selection/Visual mode */
5357     {
5358 	VIsual_select = !VIsual_select;
5359 	showmode();
5360     }
5361     else if (!checkclearop(cap->oap))
5362 	/* print full name if count given or :cd used */
5363 	fileinfo((int)cap->count0, FALSE, TRUE);
5364 }
5365 
5366 /*
5367  * Handle CTRL-H <Backspace> command.
5368  */
5369     static void
5370 nv_ctrlh(cmdarg_T *cap)
5371 {
5372     if (VIsual_active && VIsual_select)
5373     {
5374 	cap->cmdchar = 'x';	/* BS key behaves like 'x' in Select mode */
5375 	v_visop(cap);
5376     }
5377     else
5378 	nv_left(cap);
5379 }
5380 
5381 /*
5382  * CTRL-L: clear screen and redraw.
5383  */
5384     static void
5385 nv_clear(cmdarg_T *cap)
5386 {
5387     if (!checkclearop(cap->oap))
5388     {
5389 #if defined(__BEOS__) && !USE_THREAD_FOR_INPUT_WITH_TIMEOUT
5390 	/*
5391 	 * Right now, the BeBox doesn't seem to have an easy way to detect
5392 	 * window resizing, so we cheat and make the user detect it
5393 	 * manually with CTRL-L instead
5394 	 */
5395 	ui_get_shellsize();
5396 #endif
5397 #ifdef FEAT_SYN_HL
5398 	/* Clear all syntax states to force resyncing. */
5399 	syn_stack_free_all(curwin->w_s);
5400 #endif
5401 	redraw_later(CLEAR);
5402     }
5403 }
5404 
5405 /*
5406  * CTRL-O: In Select mode: switch to Visual mode for one command.
5407  * Otherwise: Go to older pcmark.
5408  */
5409     static void
5410 nv_ctrlo(cmdarg_T *cap)
5411 {
5412     if (VIsual_active && VIsual_select)
5413     {
5414 	VIsual_select = FALSE;
5415 	showmode();
5416 	restart_VIsual_select = 2;	/* restart Select mode later */
5417     }
5418     else
5419     {
5420 	cap->count1 = -cap->count1;
5421 	nv_pcmark(cap);
5422     }
5423 }
5424 
5425 /*
5426  * CTRL-^ command, short for ":e #"
5427  */
5428     static void
5429 nv_hat(cmdarg_T *cap)
5430 {
5431     if (!checkclearopq(cap->oap))
5432 	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
5433 						GETF_SETMARK|GETF_ALT, FALSE);
5434 }
5435 
5436 /*
5437  * "Z" commands.
5438  */
5439     static void
5440 nv_Zet(cmdarg_T *cap)
5441 {
5442     if (!checkclearopq(cap->oap))
5443     {
5444 	switch (cap->nchar)
5445 	{
5446 			/* "ZZ": equivalent to ":x". */
5447 	    case 'Z':	do_cmdline_cmd((char_u *)"x");
5448 			break;
5449 
5450 			/* "ZQ": equivalent to ":q!" (Elvis compatible). */
5451 	    case 'Q':	do_cmdline_cmd((char_u *)"q!");
5452 			break;
5453 
5454 	    default:	clearopbeep(cap->oap);
5455 	}
5456     }
5457 }
5458 
5459 #if defined(FEAT_WINDOWS) || defined(PROTO)
5460 /*
5461  * Call nv_ident() as if "c1" was used, with "c2" as next character.
5462  */
5463     void
5464 do_nv_ident(int c1, int c2)
5465 {
5466     oparg_T	oa;
5467     cmdarg_T	ca;
5468 
5469     clear_oparg(&oa);
5470     vim_memset(&ca, 0, sizeof(ca));
5471     ca.oap = &oa;
5472     ca.cmdchar = c1;
5473     ca.nchar = c2;
5474     nv_ident(&ca);
5475 }
5476 #endif
5477 
5478 /*
5479  * Handle the commands that use the word under the cursor.
5480  * [g] CTRL-]	:ta to current identifier
5481  * [g] 'K'	run program for current identifier
5482  * [g] '*'	/ to current identifier or string
5483  * [g] '#'	? to current identifier or string
5484  *  g  ']'	:tselect for current identifier
5485  */
5486     static void
5487 nv_ident(cmdarg_T *cap)
5488 {
5489     char_u	*ptr = NULL;
5490     char_u	*buf;
5491     unsigned	buflen;
5492     char_u	*newbuf;
5493     char_u	*p;
5494     char_u	*kp;		/* value of 'keywordprg' */
5495     int		kp_help;	/* 'keywordprg' is ":he" */
5496     int		kp_ex;		/* 'keywordprg' starts with ":" */
5497     int		n = 0;		/* init for GCC */
5498     int		cmdchar;
5499     int		g_cmd;		/* "g" command */
5500     int		tag_cmd = FALSE;
5501     char_u	*aux_ptr;
5502     int		isman;
5503     int		isman_s;
5504 
5505     if (cap->cmdchar == 'g')	/* "g*", "g#", "g]" and "gCTRL-]" */
5506     {
5507 	cmdchar = cap->nchar;
5508 	g_cmd = TRUE;
5509     }
5510     else
5511     {
5512 	cmdchar = cap->cmdchar;
5513 	g_cmd = FALSE;
5514     }
5515 
5516     if (cmdchar == POUND)	/* the pound sign, '#' for English keyboards */
5517 	cmdchar = '#';
5518 
5519     /*
5520      * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
5521      */
5522     if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
5523     {
5524 	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
5525 	    return;
5526 	if (checkclearopq(cap->oap))
5527 	    return;
5528     }
5529 
5530     if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
5531 		    (cmdchar == '*' || cmdchar == '#')
5532 				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
5533     {
5534 	clearop(cap->oap);
5535 	return;
5536     }
5537 
5538     /* Allocate buffer to put the command in.  Inserting backslashes can
5539      * double the length of the word.  p_kp / curbuf->b_p_kp could be added
5540      * and some numbers. */
5541     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
5542     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
5543 						 || STRCMP(kp, ":help") == 0);
5544     kp_ex = (*kp == ':');
5545     buflen = (unsigned)(n * 2 + 30 + STRLEN(kp));
5546     buf = alloc(buflen);
5547     if (buf == NULL)
5548 	return;
5549     buf[0] = NUL;
5550 
5551     switch (cmdchar)
5552     {
5553 	case '*':
5554 	case '#':
5555 	    /*
5556 	     * Put cursor at start of word, makes search skip the word
5557 	     * under the cursor.
5558 	     * Call setpcmark() first, so "*``" puts the cursor back where
5559 	     * it was.
5560 	     */
5561 	    setpcmark();
5562 	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());
5563 
5564 	    if (!g_cmd && vim_iswordp(ptr))
5565 		STRCPY(buf, "\\<");
5566 	    no_smartcase = TRUE;	/* don't use 'smartcase' now */
5567 	    break;
5568 
5569 	case 'K':
5570 	    if (kp_help)
5571 		STRCPY(buf, "he! ");
5572 	    else if (kp_ex)
5573 	    {
5574 		if (cap->count0 != 0)
5575 		    vim_snprintf((char *)buf, buflen, "%s %ld",
5576 							     kp, cap->count0);
5577 		else
5578 		    STRCPY(buf, kp);
5579 		STRCAT(buf, " ");
5580 	    }
5581 	    else
5582 	    {
5583 		/* An external command will probably use an argument starting
5584 		 * with "-" as an option.  To avoid trouble we skip the "-". */
5585 		while (*ptr == '-' && n > 0)
5586 		{
5587 		    ++ptr;
5588 		    --n;
5589 		}
5590 		if (n == 0)
5591 		{
5592 		    EMSG(_(e_noident));	 /* found dashes only */
5593 		    vim_free(buf);
5594 		    return;
5595 		}
5596 
5597 		/* When a count is given, turn it into a range.  Is this
5598 		 * really what we want? */
5599 		isman = (STRCMP(kp, "man") == 0);
5600 		isman_s = (STRCMP(kp, "man -s") == 0);
5601 		if (cap->count0 != 0 && !(isman || isman_s))
5602 		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);
5603 
5604 		STRCAT(buf, "! ");
5605 		if (cap->count0 == 0 && isman_s)
5606 		    STRCAT(buf, "man");
5607 		else
5608 		    STRCAT(buf, kp);
5609 		STRCAT(buf, " ");
5610 		if (cap->count0 != 0 && (isman || isman_s))
5611 		{
5612 		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
5613 		    STRCAT(buf, " ");
5614 		}
5615 	    }
5616 	    break;
5617 
5618 	case ']':
5619 	    tag_cmd = TRUE;
5620 #ifdef FEAT_CSCOPE
5621 	    if (p_cst)
5622 		STRCPY(buf, "cstag ");
5623 	    else
5624 #endif
5625 		STRCPY(buf, "ts ");
5626 	    break;
5627 
5628 	default:
5629 	    tag_cmd = TRUE;
5630 	    if (curbuf->b_help)
5631 		STRCPY(buf, "he! ");
5632 	    else
5633 	    {
5634 		if (g_cmd)
5635 		    STRCPY(buf, "tj ");
5636 		else
5637 		    sprintf((char *)buf, "%ldta ", cap->count0);
5638 	    }
5639     }
5640 
5641     /*
5642      * Now grab the chars in the identifier
5643      */
5644     if (cmdchar == 'K' && !kp_help)
5645     {
5646 	/* Escape the argument properly for a shell command */
5647 	ptr = vim_strnsave(ptr, n);
5648 	p = vim_strsave_shellescape(ptr, TRUE, TRUE);
5649 	vim_free(ptr);
5650 	if (p == NULL)
5651 	{
5652 	    vim_free(buf);
5653 	    return;
5654 	}
5655 	newbuf = (char_u *)vim_realloc(buf, STRLEN(buf) + STRLEN(p) + 1);
5656 	if (newbuf == NULL)
5657 	{
5658 	    vim_free(buf);
5659 	    vim_free(p);
5660 	    return;
5661 	}
5662 	buf = newbuf;
5663 	STRCAT(buf, p);
5664 	vim_free(p);
5665     }
5666     else
5667     {
5668 	if (cmdchar == '*')
5669 	    aux_ptr = (char_u *)(p_magic ? "/.*~[^$\\" : "/^$\\");
5670 	else if (cmdchar == '#')
5671 	    aux_ptr = (char_u *)(p_magic ? "/?.*~[^$\\" : "/?^$\\");
5672 	else if (tag_cmd)
5673 	{
5674 	    if (curbuf->b_help)
5675 		/* ":help" handles unescaped argument */
5676 		aux_ptr = (char_u *)"";
5677 	    else
5678 		aux_ptr = (char_u *)"\\|\"\n[";
5679 	}
5680 	else
5681 	    aux_ptr = (char_u *)"\\|\"\n*?[";
5682 
5683 	p = buf + STRLEN(buf);
5684 	while (n-- > 0)
5685 	{
5686 	    /* put a backslash before \ and some others */
5687 	    if (vim_strchr(aux_ptr, *ptr) != NULL)
5688 		*p++ = '\\';
5689 #ifdef FEAT_MBYTE
5690 	    /* When current byte is a part of multibyte character, copy all
5691 	     * bytes of that character. */
5692 	    if (has_mbyte)
5693 	    {
5694 		int i;
5695 		int len = (*mb_ptr2len)(ptr) - 1;
5696 
5697 		for (i = 0; i < len && n >= 1; ++i, --n)
5698 		    *p++ = *ptr++;
5699 	    }
5700 #endif
5701 	    *p++ = *ptr++;
5702 	}
5703 	*p = NUL;
5704     }
5705 
5706     /*
5707      * Execute the command.
5708      */
5709     if (cmdchar == '*' || cmdchar == '#')
5710     {
5711 	if (!g_cmd && (
5712 #ifdef FEAT_MBYTE
5713 		has_mbyte ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr)) :
5714 #endif
5715 		vim_iswordc(ptr[-1])))
5716 	    STRCAT(buf, "\\>");
5717 #ifdef FEAT_CMDHIST
5718 	/* put pattern in search history */
5719 	init_history();
5720 	add_to_history(HIST_SEARCH, buf, TRUE, NUL);
5721 #endif
5722 	(void)normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0);
5723     }
5724     else
5725 	do_cmdline_cmd(buf);
5726 
5727     vim_free(buf);
5728 }
5729 
5730 /*
5731  * Get visually selected text, within one line only.
5732  * Returns FAIL if more than one line selected.
5733  */
5734     int
5735 get_visual_text(
5736     cmdarg_T	*cap,
5737     char_u	**pp,	    /* return: start of selected text */
5738     int		*lenp)	    /* return: length of selected text */
5739 {
5740     if (VIsual_mode != 'V')
5741 	unadjust_for_sel();
5742     if (VIsual.lnum != curwin->w_cursor.lnum)
5743     {
5744 	if (cap != NULL)
5745 	    clearopbeep(cap->oap);
5746 	return FAIL;
5747     }
5748     if (VIsual_mode == 'V')
5749     {
5750 	*pp = ml_get_curline();
5751 	*lenp = (int)STRLEN(*pp);
5752     }
5753     else
5754     {
5755 	if (lt(curwin->w_cursor, VIsual))
5756 	{
5757 	    *pp = ml_get_pos(&curwin->w_cursor);
5758 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
5759 	}
5760 	else
5761 	{
5762 	    *pp = ml_get_pos(&VIsual);
5763 	    *lenp = curwin->w_cursor.col - VIsual.col + 1;
5764 	}
5765 #ifdef FEAT_MBYTE
5766 	if (has_mbyte)
5767 	    /* Correct the length to include the whole last character. */
5768 	    *lenp += (*mb_ptr2len)(*pp + (*lenp - 1)) - 1;
5769 #endif
5770     }
5771     reset_VIsual_and_resel();
5772     return OK;
5773 }
5774 
5775 /*
5776  * CTRL-T: backwards in tag stack
5777  */
5778     static void
5779 nv_tagpop(cmdarg_T *cap)
5780 {
5781     if (!checkclearopq(cap->oap))
5782 	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
5783 }
5784 
5785 /*
5786  * Handle scrolling command 'H', 'L' and 'M'.
5787  */
5788     static void
5789 nv_scroll(cmdarg_T *cap)
5790 {
5791     int		used = 0;
5792     long	n;
5793 #ifdef FEAT_FOLDING
5794     linenr_T	lnum;
5795 #endif
5796     int		half;
5797 
5798     cap->oap->motion_type = MLINE;
5799     setpcmark();
5800 
5801     if (cap->cmdchar == 'L')
5802     {
5803 	validate_botline();	    /* make sure curwin->w_botline is valid */
5804 	curwin->w_cursor.lnum = curwin->w_botline - 1;
5805 	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
5806 	    curwin->w_cursor.lnum = 1;
5807 	else
5808 	{
5809 #ifdef FEAT_FOLDING
5810 	    if (hasAnyFolding(curwin))
5811 	    {
5812 		/* Count a fold for one screen line. */
5813 		for (n = cap->count1 - 1; n > 0
5814 			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
5815 		{
5816 		    (void)hasFolding(curwin->w_cursor.lnum,
5817 						&curwin->w_cursor.lnum, NULL);
5818 		    --curwin->w_cursor.lnum;
5819 		}
5820 	    }
5821 	    else
5822 #endif
5823 		curwin->w_cursor.lnum -= cap->count1 - 1;
5824 	}
5825     }
5826     else
5827     {
5828 	if (cap->cmdchar == 'M')
5829 	{
5830 #ifdef FEAT_DIFF
5831 	    /* Don't count filler lines above the window. */
5832 	    used -= diff_check_fill(curwin, curwin->w_topline)
5833 							  - curwin->w_topfill;
5834 #endif
5835 	    validate_botline();	    /* make sure w_empty_rows is valid */
5836 	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
5837 	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
5838 	    {
5839 #ifdef FEAT_DIFF
5840 		/* Count half he number of filler lines to be "below this
5841 		 * line" and half to be "above the next line". */
5842 		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
5843 							     + n) / 2 >= half)
5844 		{
5845 		    --n;
5846 		    break;
5847 		}
5848 #endif
5849 		used += plines(curwin->w_topline + n);
5850 		if (used >= half)
5851 		    break;
5852 #ifdef FEAT_FOLDING
5853 		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
5854 		    n = lnum - curwin->w_topline;
5855 #endif
5856 	    }
5857 	    if (n > 0 && used > curwin->w_height)
5858 		--n;
5859 	}
5860 	else /* (cap->cmdchar == 'H') */
5861 	{
5862 	    n = cap->count1 - 1;
5863 #ifdef FEAT_FOLDING
5864 	    if (hasAnyFolding(curwin))
5865 	    {
5866 		/* Count a fold for one screen line. */
5867 		lnum = curwin->w_topline;
5868 		while (n-- > 0 && lnum < curwin->w_botline - 1)
5869 		{
5870 		    (void)hasFolding(lnum, NULL, &lnum);
5871 		    ++lnum;
5872 		}
5873 		n = lnum - curwin->w_topline;
5874 	    }
5875 #endif
5876 	}
5877 	curwin->w_cursor.lnum = curwin->w_topline + n;
5878 	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
5879 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
5880     }
5881 
5882     cursor_correct();	/* correct for 'so' */
5883     beginline(BL_SOL | BL_FIX);
5884 }
5885 
5886 /*
5887  * Cursor right commands.
5888  */
5889     static void
5890 nv_right(cmdarg_T *cap)
5891 {
5892     long	n;
5893     int		past_line;
5894 
5895     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5896     {
5897 	/* <C-Right> and <S-Right> move a word or WORD right */
5898 	if (mod_mask & MOD_MASK_CTRL)
5899 	    cap->arg = TRUE;
5900 	nv_wordcmd(cap);
5901 	return;
5902     }
5903 
5904     cap->oap->motion_type = MCHAR;
5905     cap->oap->inclusive = FALSE;
5906     past_line = (VIsual_active && *p_sel != 'o');
5907 
5908 #ifdef FEAT_VIRTUALEDIT
5909     /*
5910      * In virtual edit mode, there's no such thing as "past_line", as lines
5911      * are (theoretically) infinitely long.
5912      */
5913     if (virtual_active())
5914 	past_line = 0;
5915 #endif
5916 
5917     for (n = cap->count1; n > 0; --n)
5918     {
5919 	if ((!past_line && oneright() == FAIL)
5920 		|| (past_line && *ml_get_cursor() == NUL)
5921 		)
5922 	{
5923 	    /*
5924 	     *	  <Space> wraps to next line if 'whichwrap' has 's'.
5925 	     *	      'l' wraps to next line if 'whichwrap' has 'l'.
5926 	     * CURS_RIGHT wraps to next line if 'whichwrap' has '>'.
5927 	     */
5928 	    if (       ((cap->cmdchar == ' '
5929 			    && vim_strchr(p_ww, 's') != NULL)
5930 			|| (cap->cmdchar == 'l'
5931 			    && vim_strchr(p_ww, 'l') != NULL)
5932 			|| (cap->cmdchar == K_RIGHT
5933 			    && vim_strchr(p_ww, '>') != NULL))
5934 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
5935 	    {
5936 		/* When deleting we also count the NL as a character.
5937 		 * Set cap->oap->inclusive when last char in the line is
5938 		 * included, move to next line after that */
5939 		if (	   cap->oap->op_type != OP_NOP
5940 			&& !cap->oap->inclusive
5941 			&& !lineempty(curwin->w_cursor.lnum))
5942 		    cap->oap->inclusive = TRUE;
5943 		else
5944 		{
5945 		    ++curwin->w_cursor.lnum;
5946 		    curwin->w_cursor.col = 0;
5947 #ifdef FEAT_VIRTUALEDIT
5948 		    curwin->w_cursor.coladd = 0;
5949 #endif
5950 		    curwin->w_set_curswant = TRUE;
5951 		    cap->oap->inclusive = FALSE;
5952 		}
5953 		continue;
5954 	    }
5955 	    if (cap->oap->op_type == OP_NOP)
5956 	    {
5957 		/* Only beep and flush if not moved at all */
5958 		if (n == cap->count1)
5959 		    beep_flush();
5960 	    }
5961 	    else
5962 	    {
5963 		if (!lineempty(curwin->w_cursor.lnum))
5964 		    cap->oap->inclusive = TRUE;
5965 	    }
5966 	    break;
5967 	}
5968 	else if (past_line)
5969 	{
5970 	    curwin->w_set_curswant = TRUE;
5971 #ifdef FEAT_VIRTUALEDIT
5972 	    if (virtual_active())
5973 		oneright();
5974 	    else
5975 #endif
5976 	    {
5977 #ifdef FEAT_MBYTE
5978 		if (has_mbyte)
5979 		    curwin->w_cursor.col +=
5980 					 (*mb_ptr2len)(ml_get_cursor());
5981 		else
5982 #endif
5983 		    ++curwin->w_cursor.col;
5984 	    }
5985 	}
5986     }
5987 #ifdef FEAT_FOLDING
5988     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5989 					       && cap->oap->op_type == OP_NOP)
5990 	foldOpenCursor();
5991 #endif
5992 }
5993 
5994 /*
5995  * Cursor left commands.
5996  *
5997  * Returns TRUE when operator end should not be adjusted.
5998  */
5999     static void
6000 nv_left(cmdarg_T *cap)
6001 {
6002     long	n;
6003 
6004     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
6005     {
6006 	/* <C-Left> and <S-Left> move a word or WORD left */
6007 	if (mod_mask & MOD_MASK_CTRL)
6008 	    cap->arg = 1;
6009 	nv_bck_word(cap);
6010 	return;
6011     }
6012 
6013     cap->oap->motion_type = MCHAR;
6014     cap->oap->inclusive = FALSE;
6015     for (n = cap->count1; n > 0; --n)
6016     {
6017 	if (oneleft() == FAIL)
6018 	{
6019 	    /* <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
6020 	     *		 'h' wraps to previous line if 'whichwrap' has 'h'.
6021 	     *	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
6022 	     */
6023 	    if (       (((cap->cmdchar == K_BS
6024 				|| cap->cmdchar == Ctrl_H)
6025 			    && vim_strchr(p_ww, 'b') != NULL)
6026 			|| (cap->cmdchar == 'h'
6027 			    && vim_strchr(p_ww, 'h') != NULL)
6028 			|| (cap->cmdchar == K_LEFT
6029 			    && vim_strchr(p_ww, '<') != NULL))
6030 		    && curwin->w_cursor.lnum > 1)
6031 	    {
6032 		--(curwin->w_cursor.lnum);
6033 		coladvance((colnr_T)MAXCOL);
6034 		curwin->w_set_curswant = TRUE;
6035 
6036 		/* When the NL before the first char has to be deleted we
6037 		 * put the cursor on the NUL after the previous line.
6038 		 * This is a very special case, be careful!
6039 		 * Don't adjust op_end now, otherwise it won't work. */
6040 		if (	   (cap->oap->op_type == OP_DELETE
6041 			    || cap->oap->op_type == OP_CHANGE)
6042 			&& !lineempty(curwin->w_cursor.lnum))
6043 		{
6044 		    char_u *cp = ml_get_cursor();
6045 
6046 		    if (*cp != NUL)
6047 		    {
6048 #ifdef FEAT_MBYTE
6049 			if (has_mbyte)
6050 			    curwin->w_cursor.col += (*mb_ptr2len)(cp);
6051 			else
6052 #endif
6053 			    ++curwin->w_cursor.col;
6054 		    }
6055 		    cap->retval |= CA_NO_ADJ_OP_END;
6056 		}
6057 		continue;
6058 	    }
6059 	    /* Only beep and flush if not moved at all */
6060 	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
6061 		beep_flush();
6062 	    break;
6063 	}
6064     }
6065 #ifdef FEAT_FOLDING
6066     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
6067 					       && cap->oap->op_type == OP_NOP)
6068 	foldOpenCursor();
6069 #endif
6070 }
6071 
6072 /*
6073  * Cursor up commands.
6074  * cap->arg is TRUE for "-": Move cursor to first non-blank.
6075  */
6076     static void
6077 nv_up(cmdarg_T *cap)
6078 {
6079     if (mod_mask & MOD_MASK_SHIFT)
6080     {
6081 	/* <S-Up> is page up */
6082 	cap->arg = BACKWARD;
6083 	nv_page(cap);
6084     }
6085     else
6086     {
6087 	cap->oap->motion_type = MLINE;
6088 	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
6089 	    clearopbeep(cap->oap);
6090 	else if (cap->arg)
6091 	    beginline(BL_WHITE | BL_FIX);
6092     }
6093 }
6094 
6095 /*
6096  * Cursor down commands.
6097  * cap->arg is TRUE for CR and "+": Move cursor to first non-blank.
6098  */
6099     static void
6100 nv_down(
6101     cmdarg_T	*cap)
6102 {
6103     if (mod_mask & MOD_MASK_SHIFT)
6104     {
6105 	/* <S-Down> is page down */
6106 	cap->arg = FORWARD;
6107 	nv_page(cap);
6108     }
6109     else
6110 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
6111     /* In a quickfix window a <CR> jumps to the error under the cursor. */
6112     if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
6113 	if (curwin->w_llist_ref == NULL)
6114 	    do_cmdline_cmd((char_u *)".cc");	/* quickfix window */
6115 	else
6116 	    do_cmdline_cmd((char_u *)".ll");	/* location list window */
6117     else
6118 #endif
6119     {
6120 #ifdef FEAT_CMDWIN
6121 	/* In the cmdline window a <CR> executes the command. */
6122 	if (cmdwin_type != 0 && cap->cmdchar == CAR)
6123 	    cmdwin_result = CAR;
6124 	else
6125 #endif
6126 	{
6127 	    cap->oap->motion_type = MLINE;
6128 	    if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
6129 		clearopbeep(cap->oap);
6130 	    else if (cap->arg)
6131 		beginline(BL_WHITE | BL_FIX);
6132 	}
6133     }
6134 }
6135 
6136 #ifdef FEAT_SEARCHPATH
6137 /*
6138  * Grab the file name under the cursor and edit it.
6139  */
6140     static void
6141 nv_gotofile(cmdarg_T *cap)
6142 {
6143     char_u	*ptr;
6144     linenr_T	lnum = -1;
6145 
6146     if (text_locked())
6147     {
6148 	clearopbeep(cap->oap);
6149 	text_locked_msg();
6150 	return;
6151     }
6152 #ifdef FEAT_AUTOCMD
6153     if (curbuf_locked())
6154     {
6155 	clearop(cap->oap);
6156 	return;
6157     }
6158 #endif
6159 
6160     ptr = grab_file_name(cap->count1, &lnum);
6161 
6162     if (ptr != NULL)
6163     {
6164 	/* do autowrite if necessary */
6165 	if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !P_HID(curbuf))
6166 	    (void)autowrite(curbuf, FALSE);
6167 	setpcmark();
6168 	(void)do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
6169 				       P_HID(curbuf) ? ECMD_HIDE : 0, curwin);
6170 	if (cap->nchar == 'F' && lnum >= 0)
6171 	{
6172 	    curwin->w_cursor.lnum = lnum;
6173 	    check_cursor_lnum();
6174 	    beginline(BL_SOL | BL_FIX);
6175 	}
6176 	vim_free(ptr);
6177     }
6178     else
6179 	clearop(cap->oap);
6180 }
6181 #endif
6182 
6183 /*
6184  * <End> command: to end of current line or last line.
6185  */
6186     static void
6187 nv_end(cmdarg_T *cap)
6188 {
6189     if (cap->arg || (mod_mask & MOD_MASK_CTRL))	/* CTRL-END = goto last line */
6190     {
6191 	cap->arg = TRUE;
6192 	nv_goto(cap);
6193 	cap->count1 = 1;		/* to end of current line */
6194     }
6195     nv_dollar(cap);
6196 }
6197 
6198 /*
6199  * Handle the "$" command.
6200  */
6201     static void
6202 nv_dollar(cmdarg_T *cap)
6203 {
6204     cap->oap->motion_type = MCHAR;
6205     cap->oap->inclusive = TRUE;
6206 #ifdef FEAT_VIRTUALEDIT
6207     /* In virtual mode when off the edge of a line and an operator
6208      * is pending (whew!) keep the cursor where it is.
6209      * Otherwise, send it to the end of the line. */
6210     if (!virtual_active() || gchar_cursor() != NUL
6211 					       || cap->oap->op_type == OP_NOP)
6212 #endif
6213 	curwin->w_curswant = MAXCOL;	/* so we stay at the end */
6214     if (cursor_down((long)(cap->count1 - 1),
6215 					 cap->oap->op_type == OP_NOP) == FAIL)
6216 	clearopbeep(cap->oap);
6217 #ifdef FEAT_FOLDING
6218     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6219 	foldOpenCursor();
6220 #endif
6221 }
6222 
6223 /*
6224  * Implementation of '?' and '/' commands.
6225  * If cap->arg is TRUE don't set PC mark.
6226  */
6227     static void
6228 nv_search(cmdarg_T *cap)
6229 {
6230     oparg_T	*oap = cap->oap;
6231     pos_T	save_cursor = curwin->w_cursor;
6232 
6233     if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
6234     {
6235 	/* Translate "g??" to "g?g?" */
6236 	cap->cmdchar = 'g';
6237 	cap->nchar = '?';
6238 	nv_operator(cap);
6239 	return;
6240     }
6241 
6242     /* When using 'incsearch' the cursor may be moved to set a different search
6243      * start position. */
6244     cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0);
6245 
6246     if (cap->searchbuf == NULL)
6247     {
6248 	clearop(oap);
6249 	return;
6250     }
6251 
6252     (void)normal_search(cap, cap->cmdchar, cap->searchbuf,
6253 			(cap->arg || !equalpos(save_cursor, curwin->w_cursor))
6254 							   ? 0 : SEARCH_MARK);
6255 }
6256 
6257 /*
6258  * Handle "N" and "n" commands.
6259  * cap->arg is SEARCH_REV for "N", 0 for "n".
6260  */
6261     static void
6262 nv_next(cmdarg_T *cap)
6263 {
6264     pos_T old = curwin->w_cursor;
6265     int   i = normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
6266 
6267     if (i == 1 && equalpos(old, curwin->w_cursor))
6268     {
6269 	/* Avoid getting stuck on the current cursor position, which can
6270 	 * happen when an offset is given and the cursor is on the last char
6271 	 * in the buffer: Repeat with count + 1. */
6272 	cap->count1 += 1;
6273 	(void)normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
6274 	cap->count1 -= 1;
6275     }
6276 }
6277 
6278 /*
6279  * Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
6280  * Uses only cap->count1 and cap->oap from "cap".
6281  * Return 0 for failure, 1 for found, 2 for found and line offset added.
6282  */
6283     static int
6284 normal_search(
6285     cmdarg_T	*cap,
6286     int		dir,
6287     char_u	*pat,
6288     int		opt)		/* extra flags for do_search() */
6289 {
6290     int		i;
6291 
6292     cap->oap->motion_type = MCHAR;
6293     cap->oap->inclusive = FALSE;
6294     cap->oap->use_reg_one = TRUE;
6295     curwin->w_set_curswant = TRUE;
6296 
6297     i = do_search(cap->oap, dir, pat, cap->count1,
6298 			   opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG, NULL);
6299     if (i == 0)
6300 	clearop(cap->oap);
6301     else
6302     {
6303 	if (i == 2)
6304 	    cap->oap->motion_type = MLINE;
6305 #ifdef FEAT_VIRTUALEDIT
6306 	curwin->w_cursor.coladd = 0;
6307 #endif
6308 #ifdef FEAT_FOLDING
6309 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6310 	    foldOpenCursor();
6311 #endif
6312     }
6313 
6314     /* "/$" will put the cursor after the end of the line, may need to
6315      * correct that here */
6316     check_cursor();
6317     return i;
6318 }
6319 
6320 /*
6321  * Character search commands.
6322  * cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', TRUE for
6323  * ',' and FALSE for ';'.
6324  * cap->nchar is NUL for ',' and ';' (repeat the search)
6325  */
6326     static void
6327 nv_csearch(cmdarg_T *cap)
6328 {
6329     int		t_cmd;
6330 
6331     if (cap->cmdchar == 't' || cap->cmdchar == 'T')
6332 	t_cmd = TRUE;
6333     else
6334 	t_cmd = FALSE;
6335 
6336     cap->oap->motion_type = MCHAR;
6337     if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
6338 	clearopbeep(cap->oap);
6339     else
6340     {
6341 	curwin->w_set_curswant = TRUE;
6342 #ifdef FEAT_VIRTUALEDIT
6343 	/* Include a Tab for "tx" and for "dfx". */
6344 	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
6345 		&& (t_cmd || cap->oap->op_type != OP_NOP))
6346 	{
6347 	    colnr_T	scol, ecol;
6348 
6349 	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
6350 	    curwin->w_cursor.coladd = ecol - scol;
6351 	}
6352 	else
6353 	    curwin->w_cursor.coladd = 0;
6354 #endif
6355 	adjust_for_sel(cap);
6356 #ifdef FEAT_FOLDING
6357 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6358 	    foldOpenCursor();
6359 #endif
6360     }
6361 }
6362 
6363 /*
6364  * "[" and "]" commands.
6365  * cap->arg is BACKWARD for "[" and FORWARD for "]".
6366  */
6367     static void
6368 nv_brackets(cmdarg_T *cap)
6369 {
6370     pos_T	new_pos = INIT_POS_T(0, 0, 0);
6371     pos_T	prev_pos;
6372     pos_T	*pos = NULL;	    /* init for GCC */
6373     pos_T	old_pos;	    /* cursor position before command */
6374     int		flag;
6375     long	n;
6376     int		findc;
6377     int		c;
6378 
6379     cap->oap->motion_type = MCHAR;
6380     cap->oap->inclusive = FALSE;
6381     old_pos = curwin->w_cursor;
6382 #ifdef FEAT_VIRTUALEDIT
6383     curwin->w_cursor.coladd = 0;	    /* TODO: don't do this for an error. */
6384 #endif
6385 
6386 #ifdef FEAT_SEARCHPATH
6387     /*
6388      * "[f" or "]f" : Edit file under the cursor (same as "gf")
6389      */
6390     if (cap->nchar == 'f')
6391 	nv_gotofile(cap);
6392     else
6393 #endif
6394 
6395 #ifdef FEAT_FIND_ID
6396     /*
6397      * Find the occurrence(s) of the identifier or define under cursor
6398      * in current and included files or jump to the first occurrence.
6399      *
6400      *			search	     list	    jump
6401      *		      fwd   bwd    fwd	 bwd	 fwd	bwd
6402      * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
6403      * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
6404      */
6405     if (vim_strchr((char_u *)
6406 #ifdef EBCDIC
6407 		"iI\005dD\067",
6408 #else
6409 		"iI\011dD\004",
6410 #endif
6411 		cap->nchar) != NULL)
6412     {
6413 	char_u	*ptr;
6414 	int	len;
6415 
6416 	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
6417 	    clearop(cap->oap);
6418 	else
6419 	{
6420 	    find_pattern_in_path(ptr, 0, len, TRUE,
6421 		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
6422 		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
6423 		cap->count1,
6424 		isupper(cap->nchar) ? ACTION_SHOW_ALL :
6425 			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
6426 		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
6427 		(linenr_T)MAXLNUM);
6428 	    curwin->w_set_curswant = TRUE;
6429 	}
6430     }
6431     else
6432 #endif
6433 
6434     /*
6435      * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
6436      * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
6437      * "[/", "[*", "]/", "]*": go to Nth comment start/end.
6438      * "[m" or "]m" search for prev/next start of (Java) method.
6439      * "[M" or "]M" search for prev/next end of (Java) method.
6440      */
6441     if (  (cap->cmdchar == '['
6442 		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
6443 	    || (cap->cmdchar == ']'
6444 		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
6445     {
6446 	if (cap->nchar == '*')
6447 	    cap->nchar = '/';
6448 	prev_pos.lnum = 0;
6449 	if (cap->nchar == 'm' || cap->nchar == 'M')
6450 	{
6451 	    if (cap->cmdchar == '[')
6452 		findc = '{';
6453 	    else
6454 		findc = '}';
6455 	    n = 9999;
6456 	}
6457 	else
6458 	{
6459 	    findc = cap->nchar;
6460 	    n = cap->count1;
6461 	}
6462 	for ( ; n > 0; --n)
6463 	{
6464 	    if ((pos = findmatchlimit(cap->oap, findc,
6465 		(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
6466 	    {
6467 		if (new_pos.lnum == 0)	/* nothing found */
6468 		{
6469 		    if (cap->nchar != 'm' && cap->nchar != 'M')
6470 			clearopbeep(cap->oap);
6471 		}
6472 		else
6473 		    pos = &new_pos;	/* use last one found */
6474 		break;
6475 	    }
6476 	    prev_pos = new_pos;
6477 	    curwin->w_cursor = *pos;
6478 	    new_pos = *pos;
6479 	}
6480 	curwin->w_cursor = old_pos;
6481 
6482 	/*
6483 	 * Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
6484 	 * brought us to the match for "[m" and "]M" when inside a method.
6485 	 * Try finding the '{' or '}' we want to be at.
6486 	 * Also repeat for the given count.
6487 	 */
6488 	if (cap->nchar == 'm' || cap->nchar == 'M')
6489 	{
6490 	    /* norm is TRUE for "]M" and "[m" */
6491 	    int	    norm = ((findc == '{') == (cap->nchar == 'm'));
6492 
6493 	    n = cap->count1;
6494 	    /* found a match: we were inside a method */
6495 	    if (prev_pos.lnum != 0)
6496 	    {
6497 		pos = &prev_pos;
6498 		curwin->w_cursor = prev_pos;
6499 		if (norm)
6500 		    --n;
6501 	    }
6502 	    else
6503 		pos = NULL;
6504 	    while (n > 0)
6505 	    {
6506 		for (;;)
6507 		{
6508 		    if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
6509 		    {
6510 			/* if not found anything, that's an error */
6511 			if (pos == NULL)
6512 			    clearopbeep(cap->oap);
6513 			n = 0;
6514 			break;
6515 		    }
6516 		    c = gchar_cursor();
6517 		    if (c == '{' || c == '}')
6518 		    {
6519 			/* Must have found end/start of class: use it.
6520 			 * Or found the place to be at. */
6521 			if ((c == findc && norm) || (n == 1 && !norm))
6522 			{
6523 			    new_pos = curwin->w_cursor;
6524 			    pos = &new_pos;
6525 			    n = 0;
6526 			}
6527 			/* if no match found at all, we started outside of the
6528 			 * class and we're inside now.  Just go on. */
6529 			else if (new_pos.lnum == 0)
6530 			{
6531 			    new_pos = curwin->w_cursor;
6532 			    pos = &new_pos;
6533 			}
6534 			/* found start/end of other method: go to match */
6535 			else if ((pos = findmatchlimit(cap->oap, findc,
6536 			    (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
6537 								  0)) == NULL)
6538 			    n = 0;
6539 			else
6540 			    curwin->w_cursor = *pos;
6541 			break;
6542 		    }
6543 		}
6544 		--n;
6545 	    }
6546 	    curwin->w_cursor = old_pos;
6547 	    if (pos == NULL && new_pos.lnum != 0)
6548 		clearopbeep(cap->oap);
6549 	}
6550 	if (pos != NULL)
6551 	{
6552 	    setpcmark();
6553 	    curwin->w_cursor = *pos;
6554 	    curwin->w_set_curswant = TRUE;
6555 #ifdef FEAT_FOLDING
6556 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped
6557 					       && cap->oap->op_type == OP_NOP)
6558 		foldOpenCursor();
6559 #endif
6560 	}
6561     }
6562 
6563     /*
6564      * "[[", "[]", "]]" and "][": move to start or end of function
6565      */
6566     else if (cap->nchar == '[' || cap->nchar == ']')
6567     {
6568 	if (cap->nchar == cap->cmdchar)		    /* "]]" or "[[" */
6569 	    flag = '{';
6570 	else
6571 	    flag = '}';		    /* "][" or "[]" */
6572 
6573 	curwin->w_set_curswant = TRUE;
6574 	/*
6575 	 * Imitate strange Vi behaviour: When using "]]" with an operator
6576 	 * we also stop at '}'.
6577 	 */
6578 	if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
6579 	      (cap->oap->op_type != OP_NOP
6580 				      && cap->arg == FORWARD && flag == '{')))
6581 	    clearopbeep(cap->oap);
6582 	else
6583 	{
6584 	    if (cap->oap->op_type == OP_NOP)
6585 		beginline(BL_WHITE | BL_FIX);
6586 #ifdef FEAT_FOLDING
6587 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6588 		foldOpenCursor();
6589 #endif
6590 	}
6591     }
6592 
6593     /*
6594      * "[p", "[P", "]P" and "]p": put with indent adjustment
6595      */
6596     else if (cap->nchar == 'p' || cap->nchar == 'P')
6597     {
6598 	if (!checkclearop(cap->oap))
6599 	{
6600 	    int	    dir = (cap->cmdchar == ']' && cap->nchar == 'p')
6601 							 ? FORWARD : BACKWARD;
6602 	    int	    regname = cap->oap->regname;
6603 	    int	    was_visual = VIsual_active;
6604 	    int	    line_count = curbuf->b_ml.ml_line_count;
6605 	    pos_T   start, end;
6606 
6607 	    if (VIsual_active)
6608 	    {
6609 		start = ltoreq(VIsual, curwin->w_cursor)
6610 						  ? VIsual : curwin->w_cursor;
6611 		end =  equalpos(start,VIsual) ? curwin->w_cursor : VIsual;
6612 		curwin->w_cursor = (dir == BACKWARD ? start : end);
6613 	    }
6614 # ifdef FEAT_CLIPBOARD
6615 	    adjust_clip_reg(&regname);
6616 # endif
6617 	    prep_redo_cmd(cap);
6618 
6619 	    do_put(regname, dir, cap->count1, PUT_FIXINDENT);
6620 	    if (was_visual)
6621 	    {
6622 		VIsual = start;
6623 		curwin->w_cursor = end;
6624 		if (dir == BACKWARD)
6625 		{
6626 		    /* adjust lines */
6627 		    VIsual.lnum += curbuf->b_ml.ml_line_count - line_count;
6628 		    curwin->w_cursor.lnum +=
6629 				      curbuf->b_ml.ml_line_count - line_count;
6630 		}
6631 
6632 		VIsual_active = TRUE;
6633 		if (VIsual_mode == 'V')
6634 		{
6635 		    /* delete visually selected lines */
6636 		    cap->cmdchar = 'd';
6637 		    cap->nchar = NUL;
6638 		    cap->oap->regname = regname;
6639 		    nv_operator(cap);
6640 		    do_pending_operator(cap, 0, FALSE);
6641 		}
6642 		if (VIsual_active)
6643 		{
6644 		    end_visual_mode();
6645 		    redraw_later(SOME_VALID);
6646 		}
6647 	    }
6648 	}
6649     }
6650 
6651     /*
6652      * "['", "[`", "]'" and "]`": jump to next mark
6653      */
6654     else if (cap->nchar == '\'' || cap->nchar == '`')
6655     {
6656 	pos = &curwin->w_cursor;
6657 	for (n = cap->count1; n > 0; --n)
6658 	{
6659 	    prev_pos = *pos;
6660 	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
6661 							  cap->nchar == '\'');
6662 	    if (pos == NULL)
6663 		break;
6664 	}
6665 	if (pos == NULL)
6666 	    pos = &prev_pos;
6667 	nv_cursormark(cap, cap->nchar == '\'', pos);
6668     }
6669 
6670 #ifdef FEAT_MOUSE
6671     /*
6672      * [ or ] followed by a middle mouse click: put selected text with
6673      * indent adjustment.  Any other button just does as usual.
6674      */
6675     else if (cap->nchar >= K_RIGHTRELEASE && cap->nchar <= K_LEFTMOUSE)
6676     {
6677 	(void)do_mouse(cap->oap, cap->nchar,
6678 		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
6679 		       cap->count1, PUT_FIXINDENT);
6680     }
6681 #endif /* FEAT_MOUSE */
6682 
6683 #ifdef FEAT_FOLDING
6684     /*
6685      * "[z" and "]z": move to start or end of open fold.
6686      */
6687     else if (cap->nchar == 'z')
6688     {
6689 	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6690 							 cap->count1) == FAIL)
6691 	    clearopbeep(cap->oap);
6692     }
6693 #endif
6694 
6695 #ifdef FEAT_DIFF
6696     /*
6697      * "[c" and "]c": move to next or previous diff-change.
6698      */
6699     else if (cap->nchar == 'c')
6700     {
6701 	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
6702 							 cap->count1) == FAIL)
6703 	    clearopbeep(cap->oap);
6704     }
6705 #endif
6706 
6707 #ifdef FEAT_SPELL
6708     /*
6709      * "[s", "[S", "]s" and "]S": move to next spell error.
6710      */
6711     else if (cap->nchar == 's' || cap->nchar == 'S')
6712     {
6713 	setpcmark();
6714 	for (n = 0; n < cap->count1; ++n)
6715 	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6716 			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
6717 	    {
6718 		clearopbeep(cap->oap);
6719 		break;
6720 	    }
6721 # ifdef FEAT_FOLDING
6722 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6723 	    foldOpenCursor();
6724 # endif
6725     }
6726 #endif
6727 
6728     /* Not a valid cap->nchar. */
6729     else
6730 	clearopbeep(cap->oap);
6731 }
6732 
6733 /*
6734  * Handle Normal mode "%" command.
6735  */
6736     static void
6737 nv_percent(cmdarg_T *cap)
6738 {
6739     pos_T	*pos;
6740 #if defined(FEAT_FOLDING)
6741     linenr_T	lnum = curwin->w_cursor.lnum;
6742 #endif
6743 
6744     cap->oap->inclusive = TRUE;
6745     if (cap->count0)	    /* {cnt}% : goto {cnt} percentage in file */
6746     {
6747 	if (cap->count0 > 100)
6748 	    clearopbeep(cap->oap);
6749 	else
6750 	{
6751 	    cap->oap->motion_type = MLINE;
6752 	    setpcmark();
6753 	    /* Round up, so CTRL-G will give same value.  Watch out for a
6754 	     * large line count, the line number must not go negative! */
6755 	    if (curbuf->b_ml.ml_line_count > 1000000)
6756 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99L)
6757 							 / 100L * cap->count0;
6758 	    else
6759 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
6760 						    cap->count0 + 99L) / 100L;
6761 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
6762 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6763 	    beginline(BL_SOL | BL_FIX);
6764 	}
6765     }
6766     else		    /* "%" : go to matching paren */
6767     {
6768 	cap->oap->motion_type = MCHAR;
6769 	cap->oap->use_reg_one = TRUE;
6770 	if ((pos = findmatch(cap->oap, NUL)) == NULL)
6771 	    clearopbeep(cap->oap);
6772 	else
6773 	{
6774 	    setpcmark();
6775 	    curwin->w_cursor = *pos;
6776 	    curwin->w_set_curswant = TRUE;
6777 #ifdef FEAT_VIRTUALEDIT
6778 	    curwin->w_cursor.coladd = 0;
6779 #endif
6780 	    adjust_for_sel(cap);
6781 	}
6782     }
6783 #ifdef FEAT_FOLDING
6784     if (cap->oap->op_type == OP_NOP
6785 	    && lnum != curwin->w_cursor.lnum
6786 	    && (fdo_flags & FDO_PERCENT)
6787 	    && KeyTyped)
6788 	foldOpenCursor();
6789 #endif
6790 }
6791 
6792 /*
6793  * Handle "(" and ")" commands.
6794  * cap->arg is BACKWARD for "(" and FORWARD for ")".
6795  */
6796     static void
6797 nv_brace(cmdarg_T *cap)
6798 {
6799     cap->oap->motion_type = MCHAR;
6800     cap->oap->use_reg_one = TRUE;
6801     /* The motion used to be inclusive for "(", but that is not what Vi does. */
6802     cap->oap->inclusive = FALSE;
6803     curwin->w_set_curswant = TRUE;
6804 
6805     if (findsent(cap->arg, cap->count1) == FAIL)
6806 	clearopbeep(cap->oap);
6807     else
6808     {
6809 	/* Don't leave the cursor on the NUL past end of line. */
6810 	adjust_cursor(cap->oap);
6811 #ifdef FEAT_VIRTUALEDIT
6812 	curwin->w_cursor.coladd = 0;
6813 #endif
6814 #ifdef FEAT_FOLDING
6815 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6816 	    foldOpenCursor();
6817 #endif
6818     }
6819 }
6820 
6821 /*
6822  * "m" command: Mark a position.
6823  */
6824     static void
6825 nv_mark(cmdarg_T *cap)
6826 {
6827     if (!checkclearop(cap->oap))
6828     {
6829 	if (setmark(cap->nchar) == FAIL)
6830 	    clearopbeep(cap->oap);
6831     }
6832 }
6833 
6834 /*
6835  * "{" and "}" commands.
6836  * cmd->arg is BACKWARD for "{" and FORWARD for "}".
6837  */
6838     static void
6839 nv_findpar(cmdarg_T *cap)
6840 {
6841     cap->oap->motion_type = MCHAR;
6842     cap->oap->inclusive = FALSE;
6843     cap->oap->use_reg_one = TRUE;
6844     curwin->w_set_curswant = TRUE;
6845     if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, FALSE))
6846 	clearopbeep(cap->oap);
6847     else
6848     {
6849 #ifdef FEAT_VIRTUALEDIT
6850 	curwin->w_cursor.coladd = 0;
6851 #endif
6852 #ifdef FEAT_FOLDING
6853 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6854 	    foldOpenCursor();
6855 #endif
6856     }
6857 }
6858 
6859 /*
6860  * "u" command: Undo or make lower case.
6861  */
6862     static void
6863 nv_undo(cmdarg_T *cap)
6864 {
6865     if (cap->oap->op_type == OP_LOWER || VIsual_active)
6866     {
6867 	/* translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu" */
6868 	cap->cmdchar = 'g';
6869 	cap->nchar = 'u';
6870 	nv_operator(cap);
6871     }
6872     else
6873 	nv_kundo(cap);
6874 }
6875 
6876 /*
6877  * <Undo> command.
6878  */
6879     static void
6880 nv_kundo(cmdarg_T *cap)
6881 {
6882     if (!checkclearopq(cap->oap))
6883     {
6884 	u_undo((int)cap->count1);
6885 	curwin->w_set_curswant = TRUE;
6886     }
6887 }
6888 
6889 /*
6890  * Handle the "r" command.
6891  */
6892     static void
6893 nv_replace(cmdarg_T *cap)
6894 {
6895     char_u	*ptr;
6896     int		had_ctrl_v;
6897     long	n;
6898 
6899     if (checkclearop(cap->oap))
6900 	return;
6901 
6902     /* get another character */
6903     if (cap->nchar == Ctrl_V)
6904     {
6905 	had_ctrl_v = Ctrl_V;
6906 	cap->nchar = get_literal();
6907 	/* Don't redo a multibyte character with CTRL-V. */
6908 	if (cap->nchar > DEL)
6909 	    had_ctrl_v = NUL;
6910     }
6911     else
6912 	had_ctrl_v = NUL;
6913 
6914     /* Abort if the character is a special key. */
6915     if (IS_SPECIAL(cap->nchar))
6916     {
6917 	clearopbeep(cap->oap);
6918 	return;
6919     }
6920 
6921     /* Visual mode "r" */
6922     if (VIsual_active)
6923     {
6924 	if (got_int)
6925 	    reset_VIsual();
6926 	if (had_ctrl_v)
6927 	{
6928 	    if (cap->nchar == '\r')
6929 		cap->nchar = -1;
6930 	    else if (cap->nchar == '\n')
6931 		cap->nchar = -2;
6932 	}
6933 	nv_operator(cap);
6934 	return;
6935     }
6936 
6937 #ifdef FEAT_VIRTUALEDIT
6938     /* Break tabs, etc. */
6939     if (virtual_active())
6940     {
6941 	if (u_save_cursor() == FAIL)
6942 	    return;
6943 	if (gchar_cursor() == NUL)
6944 	{
6945 	    /* Add extra space and put the cursor on the first one. */
6946 	    coladvance_force((colnr_T)(getviscol() + cap->count1));
6947 	    curwin->w_cursor.col -= cap->count1;
6948 	}
6949 	else if (gchar_cursor() == TAB)
6950 	    coladvance_force(getviscol());
6951     }
6952 #endif
6953 
6954     /* Abort if not enough characters to replace. */
6955     ptr = ml_get_cursor();
6956     if (STRLEN(ptr) < (unsigned)cap->count1
6957 #ifdef FEAT_MBYTE
6958 	    || (has_mbyte && mb_charlen(ptr) < cap->count1)
6959 #endif
6960 	    )
6961     {
6962 	clearopbeep(cap->oap);
6963 	return;
6964     }
6965 
6966     /*
6967      * Replacing with a TAB is done by edit() when it is complicated because
6968      * 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
6969      * Other characters are done below to avoid problems with things like
6970      * CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
6971      */
6972     if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
6973     {
6974 	stuffnumReadbuff(cap->count1);
6975 	stuffcharReadbuff('R');
6976 	stuffcharReadbuff('\t');
6977 	stuffcharReadbuff(ESC);
6978 	return;
6979     }
6980 
6981     /* save line for undo */
6982     if (u_save_cursor() == FAIL)
6983 	return;
6984 
6985     if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
6986     {
6987 	/*
6988 	 * Replace character(s) by a single newline.
6989 	 * Strange vi behaviour: Only one newline is inserted.
6990 	 * Delete the characters here.
6991 	 * Insert the newline with an insert command, takes care of
6992 	 * autoindent.	The insert command depends on being on the last
6993 	 * character of a line or not.
6994 	 */
6995 #ifdef FEAT_MBYTE
6996 	(void)del_chars(cap->count1, FALSE);	/* delete the characters */
6997 #else
6998 	(void)del_bytes(cap->count1, FALSE, FALSE); /* delete the characters */
6999 #endif
7000 	stuffcharReadbuff('\r');
7001 	stuffcharReadbuff(ESC);
7002 
7003 	/* Give 'r' to edit(), to get the redo command right. */
7004 	invoke_edit(cap, TRUE, 'r', FALSE);
7005     }
7006     else
7007     {
7008 	prep_redo(cap->oap->regname, cap->count1,
7009 				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);
7010 
7011 	curbuf->b_op_start = curwin->w_cursor;
7012 #ifdef FEAT_MBYTE
7013 	if (has_mbyte)
7014 	{
7015 	    int		old_State = State;
7016 
7017 	    if (cap->ncharC1 != 0)
7018 		AppendCharToRedobuff(cap->ncharC1);
7019 	    if (cap->ncharC2 != 0)
7020 		AppendCharToRedobuff(cap->ncharC2);
7021 
7022 	    /* This is slow, but it handles replacing a single-byte with a
7023 	     * multi-byte and the other way around.  Also handles adding
7024 	     * composing characters for utf-8. */
7025 	    for (n = cap->count1; n > 0; --n)
7026 	    {
7027 		State = REPLACE;
7028 		if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y)
7029 		{
7030 		    int c = ins_copychar(curwin->w_cursor.lnum
7031 					   + (cap->nchar == Ctrl_Y ? -1 : 1));
7032 		    if (c != NUL)
7033 			ins_char(c);
7034 		    else
7035 			/* will be decremented further down */
7036 			++curwin->w_cursor.col;
7037 		}
7038 		else
7039 		    ins_char(cap->nchar);
7040 		State = old_State;
7041 		if (cap->ncharC1 != 0)
7042 		    ins_char(cap->ncharC1);
7043 		if (cap->ncharC2 != 0)
7044 		    ins_char(cap->ncharC2);
7045 	    }
7046 	}
7047 	else
7048 #endif
7049 	{
7050 	    /*
7051 	     * Replace the characters within one line.
7052 	     */
7053 	    for (n = cap->count1; n > 0; --n)
7054 	    {
7055 		/*
7056 		 * Get ptr again, because u_save and/or showmatch() will have
7057 		 * released the line.  At the same time we let know that the
7058 		 * line will be changed.
7059 		 */
7060 		ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
7061 		if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y)
7062 		{
7063 		  int c = ins_copychar(curwin->w_cursor.lnum
7064 					   + (cap->nchar == Ctrl_Y ? -1 : 1));
7065 		  if (c != NUL)
7066 		    ptr[curwin->w_cursor.col] = c;
7067 		}
7068 		else
7069 		    ptr[curwin->w_cursor.col] = cap->nchar;
7070 		if (p_sm && msg_silent == 0)
7071 		    showmatch(cap->nchar);
7072 		++curwin->w_cursor.col;
7073 	    }
7074 #ifdef FEAT_NETBEANS_INTG
7075 	    if (netbeans_active())
7076 	    {
7077 		colnr_T  start = (colnr_T)(curwin->w_cursor.col - cap->count1);
7078 
7079 		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
7080 							   (long)cap->count1);
7081 		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
7082 					       &ptr[start], (int)cap->count1);
7083 	    }
7084 #endif
7085 
7086 	    /* mark the buffer as changed and prepare for displaying */
7087 	    changed_bytes(curwin->w_cursor.lnum,
7088 			       (colnr_T)(curwin->w_cursor.col - cap->count1));
7089 	}
7090 	--curwin->w_cursor.col;	    /* cursor on the last replaced char */
7091 #ifdef FEAT_MBYTE
7092 	/* if the character on the left of the current cursor is a multi-byte
7093 	 * character, move two characters left */
7094 	if (has_mbyte)
7095 	    mb_adjust_cursor();
7096 #endif
7097 	curbuf->b_op_end = curwin->w_cursor;
7098 	curwin->w_set_curswant = TRUE;
7099 	set_last_insert(cap->nchar);
7100     }
7101 }
7102 
7103 /*
7104  * 'o': Exchange start and end of Visual area.
7105  * 'O': same, but in block mode exchange left and right corners.
7106  */
7107     static void
7108 v_swap_corners(int cmdchar)
7109 {
7110     pos_T	old_cursor;
7111     colnr_T	left, right;
7112 
7113     if (cmdchar == 'O' && VIsual_mode == Ctrl_V)
7114     {
7115 	old_cursor = curwin->w_cursor;
7116 	getvcols(curwin, &old_cursor, &VIsual, &left, &right);
7117 	curwin->w_cursor.lnum = VIsual.lnum;
7118 	coladvance(left);
7119 	VIsual = curwin->w_cursor;
7120 
7121 	curwin->w_cursor.lnum = old_cursor.lnum;
7122 	curwin->w_curswant = right;
7123 	/* 'selection "exclusive" and cursor at right-bottom corner: move it
7124 	 * right one column */
7125 	if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e')
7126 	    ++curwin->w_curswant;
7127 	coladvance(curwin->w_curswant);
7128 	if (curwin->w_cursor.col == old_cursor.col
7129 #ifdef FEAT_VIRTUALEDIT
7130 		&& (!virtual_active()
7131 		    || curwin->w_cursor.coladd == old_cursor.coladd)
7132 #endif
7133 		)
7134 	{
7135 	    curwin->w_cursor.lnum = VIsual.lnum;
7136 	    if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e')
7137 		++right;
7138 	    coladvance(right);
7139 	    VIsual = curwin->w_cursor;
7140 
7141 	    curwin->w_cursor.lnum = old_cursor.lnum;
7142 	    coladvance(left);
7143 	    curwin->w_curswant = left;
7144 	}
7145     }
7146     else
7147     {
7148 	old_cursor = curwin->w_cursor;
7149 	curwin->w_cursor = VIsual;
7150 	VIsual = old_cursor;
7151 	curwin->w_set_curswant = TRUE;
7152     }
7153 }
7154 
7155 /*
7156  * "R" (cap->arg is FALSE) and "gR" (cap->arg is TRUE).
7157  */
7158     static void
7159 nv_Replace(cmdarg_T *cap)
7160 {
7161     if (VIsual_active)		/* "R" is replace lines */
7162     {
7163 	cap->cmdchar = 'c';
7164 	cap->nchar = NUL;
7165 	VIsual_mode_orig = VIsual_mode; /* remember original area for gv */
7166 	VIsual_mode = 'V';
7167 	nv_operator(cap);
7168     }
7169     else if (!checkclearopq(cap->oap))
7170     {
7171 	if (!curbuf->b_p_ma)
7172 	    EMSG(_(e_modifiable));
7173 	else
7174 	{
7175 #ifdef FEAT_VIRTUALEDIT
7176 	    if (virtual_active())
7177 		coladvance(getviscol());
7178 #endif
7179 	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
7180 	}
7181     }
7182 }
7183 
7184 #ifdef FEAT_VREPLACE
7185 /*
7186  * "gr".
7187  */
7188     static void
7189 nv_vreplace(cmdarg_T *cap)
7190 {
7191     if (VIsual_active)
7192     {
7193 	cap->cmdchar = 'r';
7194 	cap->nchar = cap->extra_char;
7195 	nv_replace(cap);	/* Do same as "r" in Visual mode for now */
7196     }
7197     else if (!checkclearopq(cap->oap))
7198     {
7199 	if (!curbuf->b_p_ma)
7200 	    EMSG(_(e_modifiable));
7201 	else
7202 	{
7203 	    if (cap->extra_char == Ctrl_V)	/* get another character */
7204 		cap->extra_char = get_literal();
7205 	    stuffcharReadbuff(cap->extra_char);
7206 	    stuffcharReadbuff(ESC);
7207 # ifdef FEAT_VIRTUALEDIT
7208 	    if (virtual_active())
7209 		coladvance(getviscol());
7210 # endif
7211 	    invoke_edit(cap, TRUE, 'v', FALSE);
7212 	}
7213     }
7214 }
7215 #endif
7216 
7217 /*
7218  * Swap case for "~" command, when it does not work like an operator.
7219  */
7220     static void
7221 n_swapchar(cmdarg_T *cap)
7222 {
7223     long	n;
7224     pos_T	startpos;
7225     int		did_change = 0;
7226 #ifdef FEAT_NETBEANS_INTG
7227     pos_T	pos;
7228     char_u	*ptr;
7229     int		count;
7230 #endif
7231 
7232     if (checkclearopq(cap->oap))
7233 	return;
7234 
7235     if (lineempty(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
7236     {
7237 	clearopbeep(cap->oap);
7238 	return;
7239     }
7240 
7241     prep_redo_cmd(cap);
7242 
7243     if (u_save_cursor() == FAIL)
7244 	return;
7245 
7246     startpos = curwin->w_cursor;
7247 #ifdef FEAT_NETBEANS_INTG
7248     pos = startpos;
7249 #endif
7250     for (n = cap->count1; n > 0; --n)
7251     {
7252 	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
7253 	inc_cursor();
7254 	if (gchar_cursor() == NUL)
7255 	{
7256 	    if (vim_strchr(p_ww, '~') != NULL
7257 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
7258 	    {
7259 #ifdef FEAT_NETBEANS_INTG
7260 		if (netbeans_active())
7261 		{
7262 		    if (did_change)
7263 		    {
7264 			ptr = ml_get(pos.lnum);
7265 			count = (int)STRLEN(ptr) - pos.col;
7266 			netbeans_removed(curbuf, pos.lnum, pos.col,
7267 								 (long)count);
7268 			netbeans_inserted(curbuf, pos.lnum, pos.col,
7269 							&ptr[pos.col], count);
7270 		    }
7271 		    pos.col = 0;
7272 		    pos.lnum++;
7273 		}
7274 #endif
7275 		++curwin->w_cursor.lnum;
7276 		curwin->w_cursor.col = 0;
7277 		if (n > 1)
7278 		{
7279 		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
7280 			break;
7281 		    u_clearline();
7282 		}
7283 	    }
7284 	    else
7285 		break;
7286 	}
7287     }
7288 #ifdef FEAT_NETBEANS_INTG
7289     if (did_change && netbeans_active())
7290     {
7291 	ptr = ml_get(pos.lnum);
7292 	count = curwin->w_cursor.col - pos.col;
7293 	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
7294 	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
7295     }
7296 #endif
7297 
7298 
7299     check_cursor();
7300     curwin->w_set_curswant = TRUE;
7301     if (did_change)
7302     {
7303 	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
7304 									  0L);
7305 	curbuf->b_op_start = startpos;
7306 	curbuf->b_op_end = curwin->w_cursor;
7307 	if (curbuf->b_op_end.col > 0)
7308 	    --curbuf->b_op_end.col;
7309     }
7310 }
7311 
7312 /*
7313  * Move cursor to mark.
7314  */
7315     static void
7316 nv_cursormark(cmdarg_T *cap, int flag, pos_T *pos)
7317 {
7318     if (check_mark(pos) == FAIL)
7319 	clearop(cap->oap);
7320     else
7321     {
7322 	if (cap->cmdchar == '\''
7323 		|| cap->cmdchar == '`'
7324 		|| cap->cmdchar == '['
7325 		|| cap->cmdchar == ']')
7326 	    setpcmark();
7327 	curwin->w_cursor = *pos;
7328 	if (flag)
7329 	    beginline(BL_WHITE | BL_FIX);
7330 	else
7331 	    check_cursor();
7332     }
7333     cap->oap->motion_type = flag ? MLINE : MCHAR;
7334     if (cap->cmdchar == '`')
7335 	cap->oap->use_reg_one = TRUE;
7336     cap->oap->inclusive = FALSE;		/* ignored if not MCHAR */
7337     curwin->w_set_curswant = TRUE;
7338 }
7339 
7340 /*
7341  * Handle commands that are operators in Visual mode.
7342  */
7343     static void
7344 v_visop(cmdarg_T *cap)
7345 {
7346     static char_u trans[] = "YyDdCcxdXdAAIIrr";
7347 
7348     /* Uppercase means linewise, except in block mode, then "D" deletes till
7349      * the end of the line, and "C" replaces till EOL */
7350     if (isupper(cap->cmdchar))
7351     {
7352 	if (VIsual_mode != Ctrl_V)
7353 	{
7354 	    VIsual_mode_orig = VIsual_mode;
7355 	    VIsual_mode = 'V';
7356 	}
7357 	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
7358 	    curwin->w_curswant = MAXCOL;
7359     }
7360     cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
7361     nv_operator(cap);
7362 }
7363 
7364 /*
7365  * "s" and "S" commands.
7366  */
7367     static void
7368 nv_subst(cmdarg_T *cap)
7369 {
7370     if (VIsual_active)	/* "vs" and "vS" are the same as "vc" */
7371     {
7372 	if (cap->cmdchar == 'S')
7373 	{
7374 	    VIsual_mode_orig = VIsual_mode;
7375 	    VIsual_mode = 'V';
7376 	}
7377 	cap->cmdchar = 'c';
7378 	nv_operator(cap);
7379     }
7380     else
7381 	nv_optrans(cap);
7382 }
7383 
7384 /*
7385  * Abbreviated commands.
7386  */
7387     static void
7388 nv_abbrev(cmdarg_T *cap)
7389 {
7390     if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
7391 	cap->cmdchar = 'x';		/* DEL key behaves like 'x' */
7392 
7393     /* in Visual mode these commands are operators */
7394     if (VIsual_active)
7395 	v_visop(cap);
7396     else
7397 	nv_optrans(cap);
7398 }
7399 
7400 /*
7401  * Translate a command into another command.
7402  */
7403     static void
7404 nv_optrans(cmdarg_T *cap)
7405 {
7406     static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
7407 			      (char_u *)"d$", (char_u *)"c$",
7408 			      (char_u *)"cl", (char_u *)"cc",
7409 			      (char_u *)"yy", (char_u *)":s\r"};
7410     static char_u *str = (char_u *)"xXDCsSY&";
7411 
7412     if (!checkclearopq(cap->oap))
7413     {
7414 	/* In Vi "2D" doesn't delete the next line.  Can't translate it
7415 	 * either, because "2." should also not use the count. */
7416 	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
7417 	{
7418 	    cap->oap->start = curwin->w_cursor;
7419 	    cap->oap->op_type = OP_DELETE;
7420 #ifdef FEAT_EVAL
7421 	    set_op_var(OP_DELETE);
7422 #endif
7423 	    cap->count1 = 1;
7424 	    nv_dollar(cap);
7425 	    finish_op = TRUE;
7426 	    ResetRedobuff();
7427 	    AppendCharToRedobuff('D');
7428 	}
7429 	else
7430 	{
7431 	    if (cap->count0)
7432 		stuffnumReadbuff(cap->count0);
7433 	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
7434 	}
7435     }
7436     cap->opcount = 0;
7437 }
7438 
7439 /*
7440  * "'" and "`" commands.  Also for "g'" and "g`".
7441  * cap->arg is TRUE for "'" and "g'".
7442  */
7443     static void
7444 nv_gomark(cmdarg_T *cap)
7445 {
7446     pos_T	*pos;
7447     int		c;
7448 #ifdef FEAT_FOLDING
7449     pos_T	old_cursor = curwin->w_cursor;
7450     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7451 #endif
7452 
7453     if (cap->cmdchar == 'g')
7454 	c = cap->extra_char;
7455     else
7456 	c = cap->nchar;
7457     pos = getmark(c, (cap->oap->op_type == OP_NOP));
7458     if (pos == (pos_T *)-1)	    /* jumped to other file */
7459     {
7460 	if (cap->arg)
7461 	{
7462 	    check_cursor_lnum();
7463 	    beginline(BL_WHITE | BL_FIX);
7464 	}
7465 	else
7466 	    check_cursor();
7467     }
7468     else
7469 	nv_cursormark(cap, cap->arg, pos);
7470 
7471 #ifdef FEAT_VIRTUALEDIT
7472     /* May need to clear the coladd that a mark includes. */
7473     if (!virtual_active())
7474 	curwin->w_cursor.coladd = 0;
7475 #endif
7476 #ifdef FEAT_FOLDING
7477     if (cap->oap->op_type == OP_NOP
7478 	    && pos != NULL
7479 	    && (pos == (pos_T *)-1 || !equalpos(old_cursor, *pos))
7480 	    && (fdo_flags & FDO_MARK)
7481 	    && old_KeyTyped)
7482 	foldOpenCursor();
7483 #endif
7484 }
7485 
7486 /*
7487  * Handle CTRL-O, CTRL-I, "g;" and "g," commands.
7488  */
7489     static void
7490 nv_pcmark(cmdarg_T *cap)
7491 {
7492 #ifdef FEAT_JUMPLIST
7493     pos_T	*pos;
7494 # ifdef FEAT_FOLDING
7495     linenr_T	lnum = curwin->w_cursor.lnum;
7496     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7497 # endif
7498 
7499     if (!checkclearopq(cap->oap))
7500     {
7501 	if (cap->cmdchar == 'g')
7502 	    pos = movechangelist((int)cap->count1);
7503 	else
7504 	    pos = movemark((int)cap->count1);
7505 	if (pos == (pos_T *)-1)		/* jump to other file */
7506 	{
7507 	    curwin->w_set_curswant = TRUE;
7508 	    check_cursor();
7509 	}
7510 	else if (pos != NULL)		    /* can jump */
7511 	    nv_cursormark(cap, FALSE, pos);
7512 	else if (cap->cmdchar == 'g')
7513 	{
7514 	    if (curbuf->b_changelistlen == 0)
7515 		EMSG(_("E664: changelist is empty"));
7516 	    else if (cap->count1 < 0)
7517 		EMSG(_("E662: At start of changelist"));
7518 	    else
7519 		EMSG(_("E663: At end of changelist"));
7520 	}
7521 	else
7522 	    clearopbeep(cap->oap);
7523 # ifdef FEAT_FOLDING
7524 	if (cap->oap->op_type == OP_NOP
7525 		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
7526 		&& (fdo_flags & FDO_MARK)
7527 		&& old_KeyTyped)
7528 	    foldOpenCursor();
7529 # endif
7530     }
7531 #else
7532     clearopbeep(cap->oap);
7533 #endif
7534 }
7535 
7536 /*
7537  * Handle '"' command.
7538  */
7539     static void
7540 nv_regname(cmdarg_T *cap)
7541 {
7542     if (checkclearop(cap->oap))
7543 	return;
7544 #ifdef FEAT_EVAL
7545     if (cap->nchar == '=')
7546 	cap->nchar = get_expr_register();
7547 #endif
7548     if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
7549     {
7550 	cap->oap->regname = cap->nchar;
7551 	cap->opcount = cap->count0;	/* remember count before '"' */
7552 #ifdef FEAT_EVAL
7553 	set_reg_var(cap->oap->regname);
7554 #endif
7555     }
7556     else
7557 	clearopbeep(cap->oap);
7558 }
7559 
7560 /*
7561  * Handle "v", "V" and "CTRL-V" commands.
7562  * Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
7563  * is TRUE.
7564  * Handle CTRL-Q just like CTRL-V.
7565  */
7566     static void
7567 nv_visual(cmdarg_T *cap)
7568 {
7569     if (cap->cmdchar == Ctrl_Q)
7570 	cap->cmdchar = Ctrl_V;
7571 
7572     /* 'v', 'V' and CTRL-V can be used while an operator is pending to make it
7573      * characterwise, linewise, or blockwise. */
7574     if (cap->oap->op_type != OP_NOP)
7575     {
7576 	cap->oap->motion_force = cap->cmdchar;
7577 	finish_op = FALSE;	/* operator doesn't finish now but later */
7578 	return;
7579     }
7580 
7581     VIsual_select = cap->arg;
7582     if (VIsual_active)	    /* change Visual mode */
7583     {
7584 	if (VIsual_mode == cap->cmdchar)    /* stop visual mode */
7585 	    end_visual_mode();
7586 	else				    /* toggle char/block mode */
7587 	{				    /*	   or char/line mode */
7588 	    VIsual_mode = cap->cmdchar;
7589 	    showmode();
7590 	}
7591 	redraw_curbuf_later(INVERTED);	    /* update the inversion */
7592     }
7593     else		    /* start Visual mode */
7594     {
7595 	check_visual_highlight();
7596 	if (cap->count0 > 0 && resel_VIsual_mode != NUL)
7597 	{
7598 	    /* use previously selected part */
7599 	    VIsual = curwin->w_cursor;
7600 
7601 	    VIsual_active = TRUE;
7602 	    VIsual_reselect = TRUE;
7603 	    if (!cap->arg)
7604 		/* start Select mode when 'selectmode' contains "cmd" */
7605 		may_start_select('c');
7606 #ifdef FEAT_MOUSE
7607 	    setmouse();
7608 #endif
7609 	    if (p_smd && msg_silent == 0)
7610 		redraw_cmdline = TRUE;	    /* show visual mode later */
7611 	    /*
7612 	     * For V and ^V, we multiply the number of lines even if there
7613 	     * was only one -- webb
7614 	     */
7615 	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
7616 	    {
7617 		curwin->w_cursor.lnum +=
7618 				    resel_VIsual_line_count * cap->count0 - 1;
7619 		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
7620 		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
7621 	    }
7622 	    VIsual_mode = resel_VIsual_mode;
7623 	    if (VIsual_mode == 'v')
7624 	    {
7625 		if (resel_VIsual_line_count <= 1)
7626 		{
7627 		    validate_virtcol();
7628 		    curwin->w_curswant = curwin->w_virtcol
7629 					+ resel_VIsual_vcol * cap->count0 - 1;
7630 		}
7631 		else
7632 		    curwin->w_curswant = resel_VIsual_vcol;
7633 		coladvance(curwin->w_curswant);
7634 	    }
7635 	    if (resel_VIsual_vcol == MAXCOL)
7636 	    {
7637 		curwin->w_curswant = MAXCOL;
7638 		coladvance((colnr_T)MAXCOL);
7639 	    }
7640 	    else if (VIsual_mode == Ctrl_V)
7641 	    {
7642 		validate_virtcol();
7643 		curwin->w_curswant = curwin->w_virtcol
7644 					+ resel_VIsual_vcol * cap->count0 - 1;
7645 		coladvance(curwin->w_curswant);
7646 	    }
7647 	    else
7648 		curwin->w_set_curswant = TRUE;
7649 	    redraw_curbuf_later(INVERTED);	/* show the inversion */
7650 	}
7651 	else
7652 	{
7653 	    if (!cap->arg)
7654 		/* start Select mode when 'selectmode' contains "cmd" */
7655 		may_start_select('c');
7656 	    n_start_visual_mode(cap->cmdchar);
7657 	    if (VIsual_mode != 'V' && *p_sel == 'e')
7658 		++cap->count1;  /* include one more char */
7659 	    if (cap->count0 > 0 && --cap->count1 > 0)
7660 	    {
7661 		/* With a count select that many characters or lines. */
7662 		if (VIsual_mode == 'v' || VIsual_mode == Ctrl_V)
7663 		    nv_right(cap);
7664 		else if (VIsual_mode == 'V')
7665 		    nv_down(cap);
7666 	    }
7667 	}
7668     }
7669 }
7670 
7671 /*
7672  * Start selection for Shift-movement keys.
7673  */
7674     void
7675 start_selection(void)
7676 {
7677     /* if 'selectmode' contains "key", start Select mode */
7678     may_start_select('k');
7679     n_start_visual_mode('v');
7680 }
7681 
7682 /*
7683  * Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
7684  */
7685     void
7686 may_start_select(int c)
7687 {
7688     VIsual_select = (stuff_empty() && typebuf_typed()
7689 		    && (vim_strchr(p_slm, c) != NULL));
7690 }
7691 
7692 /*
7693  * Start Visual mode "c".
7694  * Should set VIsual_select before calling this.
7695  */
7696     static void
7697 n_start_visual_mode(int c)
7698 {
7699 #ifdef FEAT_CONCEAL
7700     /* Check for redraw before changing the state. */
7701     conceal_check_cursur_line();
7702 #endif
7703 
7704     VIsual_mode = c;
7705     VIsual_active = TRUE;
7706     VIsual_reselect = TRUE;
7707 #ifdef FEAT_VIRTUALEDIT
7708     /* Corner case: the 0 position in a tab may change when going into
7709      * virtualedit.  Recalculate curwin->w_cursor to avoid bad hilighting.
7710      */
7711     if (c == Ctrl_V && (ve_flags & VE_BLOCK) && gchar_cursor() == TAB)
7712     {
7713 	validate_virtcol();
7714 	coladvance(curwin->w_virtcol);
7715     }
7716 #endif
7717     VIsual = curwin->w_cursor;
7718 
7719 #ifdef FEAT_FOLDING
7720     foldAdjustVisual();
7721 #endif
7722 
7723 #ifdef FEAT_MOUSE
7724     setmouse();
7725 #endif
7726 #ifdef FEAT_CONCEAL
7727     /* Check for redraw after changing the state. */
7728     conceal_check_cursur_line();
7729 #endif
7730 
7731     if (p_smd && msg_silent == 0)
7732 	redraw_cmdline = TRUE;	/* show visual mode later */
7733 #ifdef FEAT_CLIPBOARD
7734     /* Make sure the clipboard gets updated.  Needed because start and
7735      * end may still be the same, and the selection needs to be owned */
7736     clip_star.vmode = NUL;
7737 #endif
7738 
7739     /* Only need to redraw this line, unless still need to redraw an old
7740      * Visual area (when 'lazyredraw' is set). */
7741     if (curwin->w_redr_type < INVERTED)
7742     {
7743 	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
7744 	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
7745     }
7746 }
7747 
7748 
7749 /*
7750  * CTRL-W: Window commands
7751  */
7752     static void
7753 nv_window(cmdarg_T *cap)
7754 {
7755 #ifdef FEAT_WINDOWS
7756     if (!checkclearop(cap->oap))
7757 	do_window(cap->nchar, cap->count0, NUL); /* everything is in window.c */
7758 #else
7759     (void)checkclearop(cap->oap);
7760 #endif
7761 }
7762 
7763 /*
7764  * CTRL-Z: Suspend
7765  */
7766     static void
7767 nv_suspend(cmdarg_T *cap)
7768 {
7769     clearop(cap->oap);
7770     if (VIsual_active)
7771 	end_visual_mode();		/* stop Visual mode */
7772     do_cmdline_cmd((char_u *)"st");
7773 }
7774 
7775 /*
7776  * Commands starting with "g".
7777  */
7778     static void
7779 nv_g_cmd(cmdarg_T *cap)
7780 {
7781     oparg_T	*oap = cap->oap;
7782     pos_T	tpos;
7783     int		i;
7784     int		flag = FALSE;
7785 
7786     switch (cap->nchar)
7787     {
7788     case Ctrl_A:
7789     case Ctrl_X:
7790 #ifdef MEM_PROFILE
7791     /*
7792      * "g^A": dump log of used memory.
7793      */
7794 	if (!VIsual_active && cap->nchar == Ctrl_A)
7795 	    vim_mem_profile_dump();
7796 	else
7797 #endif
7798     /*
7799      * "g^A/g^X": sequentially increment visually selected region
7800      */
7801 	     if (VIsual_active)
7802 	{
7803 	    cap->arg = TRUE;
7804 	    cap->cmdchar = cap->nchar;
7805 	    cap->nchar = NUL;
7806 	    nv_addsub(cap);
7807 	}
7808 	else
7809 	    clearopbeep(oap);
7810 	break;
7811 
7812 #ifdef FEAT_VREPLACE
7813     /*
7814      * "gR": Enter virtual replace mode.
7815      */
7816     case 'R':
7817 	cap->arg = TRUE;
7818 	nv_Replace(cap);
7819 	break;
7820 
7821     case 'r':
7822 	nv_vreplace(cap);
7823 	break;
7824 #endif
7825 
7826     case '&':
7827 	do_cmdline_cmd((char_u *)"%s//~/&");
7828 	break;
7829 
7830     /*
7831      * "gv": Reselect the previous Visual area.  If Visual already active,
7832      *	     exchange previous and current Visual area.
7833      */
7834     case 'v':
7835 	if (checkclearop(oap))
7836 	    break;
7837 
7838 	if (	   curbuf->b_visual.vi_start.lnum == 0
7839 		|| curbuf->b_visual.vi_start.lnum > curbuf->b_ml.ml_line_count
7840 		|| curbuf->b_visual.vi_end.lnum == 0)
7841 	    beep_flush();
7842 	else
7843 	{
7844 	    /* set w_cursor to the start of the Visual area, tpos to the end */
7845 	    if (VIsual_active)
7846 	    {
7847 		i = VIsual_mode;
7848 		VIsual_mode = curbuf->b_visual.vi_mode;
7849 		curbuf->b_visual.vi_mode = i;
7850 # ifdef FEAT_EVAL
7851 		curbuf->b_visual_mode_eval = i;
7852 # endif
7853 		i = curwin->w_curswant;
7854 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7855 		curbuf->b_visual.vi_curswant = i;
7856 
7857 		tpos = curbuf->b_visual.vi_end;
7858 		curbuf->b_visual.vi_end = curwin->w_cursor;
7859 		curwin->w_cursor = curbuf->b_visual.vi_start;
7860 		curbuf->b_visual.vi_start = VIsual;
7861 	    }
7862 	    else
7863 	    {
7864 		VIsual_mode = curbuf->b_visual.vi_mode;
7865 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7866 		tpos = curbuf->b_visual.vi_end;
7867 		curwin->w_cursor = curbuf->b_visual.vi_start;
7868 	    }
7869 
7870 	    VIsual_active = TRUE;
7871 	    VIsual_reselect = TRUE;
7872 
7873 	    /* Set Visual to the start and w_cursor to the end of the Visual
7874 	     * area.  Make sure they are on an existing character. */
7875 	    check_cursor();
7876 	    VIsual = curwin->w_cursor;
7877 	    curwin->w_cursor = tpos;
7878 	    check_cursor();
7879 	    update_topline();
7880 	    /*
7881 	     * When called from normal "g" command: start Select mode when
7882 	     * 'selectmode' contains "cmd".  When called for K_SELECT, always
7883 	     * start Select mode.
7884 	     */
7885 	    if (cap->arg)
7886 		VIsual_select = TRUE;
7887 	    else
7888 		may_start_select('c');
7889 #ifdef FEAT_MOUSE
7890 	    setmouse();
7891 #endif
7892 #ifdef FEAT_CLIPBOARD
7893 	    /* Make sure the clipboard gets updated.  Needed because start and
7894 	     * end are still the same, and the selection needs to be owned */
7895 	    clip_star.vmode = NUL;
7896 #endif
7897 	    redraw_curbuf_later(INVERTED);
7898 	    showmode();
7899 	}
7900 	break;
7901     /*
7902      * "gV": Don't reselect the previous Visual area after a Select mode
7903      *	     mapping of menu.
7904      */
7905     case 'V':
7906 	VIsual_reselect = FALSE;
7907 	break;
7908 
7909     /*
7910      * "gh":  start Select mode.
7911      * "gH":  start Select line mode.
7912      * "g^H": start Select block mode.
7913      */
7914     case K_BS:
7915 	cap->nchar = Ctrl_H;
7916 	/* FALLTHROUGH */
7917     case 'h':
7918     case 'H':
7919     case Ctrl_H:
7920 # ifdef EBCDIC
7921 	/* EBCDIC: 'v'-'h' != '^v'-'^h' */
7922 	if (cap->nchar == Ctrl_H)
7923 	    cap->cmdchar = Ctrl_V;
7924 	else
7925 # endif
7926 	cap->cmdchar = cap->nchar + ('v' - 'h');
7927 	cap->arg = TRUE;
7928 	nv_visual(cap);
7929 	break;
7930 
7931     /* "gn", "gN" visually select next/previous search match
7932      * "gn" selects next match
7933      * "gN" selects previous match
7934      */
7935     case 'N':
7936     case 'n':
7937 	if (!current_search(cap->count1, cap->nchar == 'n'))
7938 	    clearopbeep(oap);
7939 	break;
7940 
7941     /*
7942      * "gj" and "gk" two new funny movement keys -- up and down
7943      * movement based on *screen* line rather than *file* line.
7944      */
7945     case 'j':
7946     case K_DOWN:
7947 	/* with 'nowrap' it works just like the normal "j" command; also when
7948 	 * in a closed fold */
7949 	if (!curwin->w_p_wrap
7950 #ifdef FEAT_FOLDING
7951 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7952 #endif
7953 		)
7954 	{
7955 	    oap->motion_type = MLINE;
7956 	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
7957 	}
7958 	else
7959 	    i = nv_screengo(oap, FORWARD, cap->count1);
7960 	if (i == FAIL)
7961 	    clearopbeep(oap);
7962 	break;
7963 
7964     case 'k':
7965     case K_UP:
7966 	/* with 'nowrap' it works just like the normal "k" command; also when
7967 	 * in a closed fold */
7968 	if (!curwin->w_p_wrap
7969 #ifdef FEAT_FOLDING
7970 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7971 #endif
7972 	   )
7973 	{
7974 	    oap->motion_type = MLINE;
7975 	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
7976 	}
7977 	else
7978 	    i = nv_screengo(oap, BACKWARD, cap->count1);
7979 	if (i == FAIL)
7980 	    clearopbeep(oap);
7981 	break;
7982 
7983     /*
7984      * "gJ": join two lines without inserting a space.
7985      */
7986     case 'J':
7987 	nv_join(cap);
7988 	break;
7989 
7990     /*
7991      * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
7992      * "gm": middle of "g0" and "g$".
7993      */
7994     case '^':
7995 	flag = TRUE;
7996 	/* FALLTHROUGH */
7997 
7998     case '0':
7999     case 'm':
8000     case K_HOME:
8001     case K_KHOME:
8002 	oap->motion_type = MCHAR;
8003 	oap->inclusive = FALSE;
8004 	if (curwin->w_p_wrap
8005 #ifdef FEAT_WINDOWS
8006 		&& curwin->w_width != 0
8007 #endif
8008 		)
8009 	{
8010 	    int		width1 = W_WIDTH(curwin) - curwin_col_off();
8011 	    int		width2 = width1 + curwin_col_off2();
8012 
8013 	    validate_virtcol();
8014 	    i = 0;
8015 	    if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
8016 		i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
8017 	}
8018 	else
8019 	    i = curwin->w_leftcol;
8020 	/* Go to the middle of the screen line.  When 'number' or
8021 	 * 'relativenumber' is on and lines are wrapping the middle can be more
8022 	 * to the left. */
8023 	if (cap->nchar == 'm')
8024 	    i += (W_WIDTH(curwin) - curwin_col_off()
8025 		    + ((curwin->w_p_wrap && i > 0)
8026 			? curwin_col_off2() : 0)) / 2;
8027 	coladvance((colnr_T)i);
8028 	if (flag)
8029 	{
8030 	    do
8031 		i = gchar_cursor();
8032 	    while (vim_iswhite(i) && oneright() == OK);
8033 	}
8034 	curwin->w_set_curswant = TRUE;
8035 	break;
8036 
8037     case '_':
8038 	/* "g_": to the last non-blank character in the line or <count> lines
8039 	 * downward. */
8040 	cap->oap->motion_type = MCHAR;
8041 	cap->oap->inclusive = TRUE;
8042 	curwin->w_curswant = MAXCOL;
8043 	if (cursor_down((long)(cap->count1 - 1),
8044 					 cap->oap->op_type == OP_NOP) == FAIL)
8045 	    clearopbeep(cap->oap);
8046 	else
8047 	{
8048 	    char_u  *ptr = ml_get_curline();
8049 
8050 	    /* In Visual mode we may end up after the line. */
8051 	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
8052 		--curwin->w_cursor.col;
8053 
8054 	    /* Decrease the cursor column until it's on a non-blank. */
8055 	    while (curwin->w_cursor.col > 0
8056 				    && vim_iswhite(ptr[curwin->w_cursor.col]))
8057 		--curwin->w_cursor.col;
8058 	    curwin->w_set_curswant = TRUE;
8059 	    adjust_for_sel(cap);
8060 	}
8061 	break;
8062 
8063     case '$':
8064     case K_END:
8065     case K_KEND:
8066 	{
8067 	    int col_off = curwin_col_off();
8068 
8069 	    oap->motion_type = MCHAR;
8070 	    oap->inclusive = TRUE;
8071 	    if (curwin->w_p_wrap
8072 #ifdef FEAT_WINDOWS
8073 		    && curwin->w_width != 0
8074 #endif
8075 	       )
8076 	    {
8077 		curwin->w_curswant = MAXCOL;    /* so we stay at the end */
8078 		if (cap->count1 == 1)
8079 		{
8080 		    int		width1 = W_WIDTH(curwin) - col_off;
8081 		    int		width2 = width1 + curwin_col_off2();
8082 
8083 		    validate_virtcol();
8084 		    i = width1 - 1;
8085 		    if (curwin->w_virtcol >= (colnr_T)width1)
8086 			i += ((curwin->w_virtcol - width1) / width2 + 1)
8087 								     * width2;
8088 		    coladvance((colnr_T)i);
8089 
8090 		    /* Make sure we stick in this column. */
8091 		    validate_virtcol();
8092 		    curwin->w_curswant = curwin->w_virtcol;
8093 		    curwin->w_set_curswant = FALSE;
8094 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
8095 		    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
8096 		    {
8097 			/*
8098 			 * Check for landing on a character that got split at
8099 			 * the end of the line.  We do not want to advance to
8100 			 * the next screen line.
8101 			 */
8102 			if (curwin->w_virtcol > (colnr_T)i)
8103 			    --curwin->w_cursor.col;
8104 		    }
8105 #endif
8106 		}
8107 		else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
8108 		    clearopbeep(oap);
8109 	    }
8110 	    else
8111 	    {
8112 		i = curwin->w_leftcol + W_WIDTH(curwin) - col_off - 1;
8113 		coladvance((colnr_T)i);
8114 
8115 		/* Make sure we stick in this column. */
8116 		validate_virtcol();
8117 		curwin->w_curswant = curwin->w_virtcol;
8118 		curwin->w_set_curswant = FALSE;
8119 	    }
8120 	}
8121 	break;
8122 
8123     /*
8124      * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
8125      */
8126     case '*':
8127     case '#':
8128 #if POUND != '#'
8129     case POUND:		/* pound sign (sometimes equal to '#') */
8130 #endif
8131     case Ctrl_RSB:		/* :tag or :tselect for current identifier */
8132     case ']':			/* :tselect for current identifier */
8133 	nv_ident(cap);
8134 	break;
8135 
8136     /*
8137      * ge and gE: go back to end of word
8138      */
8139     case 'e':
8140     case 'E':
8141 	oap->motion_type = MCHAR;
8142 	curwin->w_set_curswant = TRUE;
8143 	oap->inclusive = TRUE;
8144 	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
8145 	    clearopbeep(oap);
8146 	break;
8147 
8148     /*
8149      * "g CTRL-G": display info about cursor position
8150      */
8151     case Ctrl_G:
8152 	cursor_pos_info(NULL);
8153 	break;
8154 
8155     /*
8156      * "gi": start Insert at the last position.
8157      */
8158     case 'i':
8159 	if (curbuf->b_last_insert.lnum != 0)
8160 	{
8161 	    curwin->w_cursor = curbuf->b_last_insert;
8162 	    check_cursor_lnum();
8163 	    i = (int)STRLEN(ml_get_curline());
8164 	    if (curwin->w_cursor.col > (colnr_T)i)
8165 	    {
8166 #ifdef FEAT_VIRTUALEDIT
8167 		if (virtual_active())
8168 		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
8169 #endif
8170 		curwin->w_cursor.col = i;
8171 	    }
8172 	}
8173 	cap->cmdchar = 'i';
8174 	nv_edit(cap);
8175 	break;
8176 
8177     /*
8178      * "gI": Start insert in column 1.
8179      */
8180     case 'I':
8181 	beginline(0);
8182 	if (!checkclearopq(oap))
8183 	    invoke_edit(cap, FALSE, 'g', FALSE);
8184 	break;
8185 
8186 #ifdef FEAT_SEARCHPATH
8187     /*
8188      * "gf": goto file, edit file under cursor
8189      * "]f" and "[f": can also be used.
8190      */
8191     case 'f':
8192     case 'F':
8193 	nv_gotofile(cap);
8194 	break;
8195 #endif
8196 
8197 	/* "g'm" and "g`m": jump to mark without setting pcmark */
8198     case '\'':
8199 	cap->arg = TRUE;
8200 	/*FALLTHROUGH*/
8201     case '`':
8202 	nv_gomark(cap);
8203 	break;
8204 
8205     /*
8206      * "gs": Goto sleep.
8207      */
8208     case 's':
8209 	do_sleep(cap->count1 * 1000L);
8210 	break;
8211 
8212     /*
8213      * "ga": Display the ascii value of the character under the
8214      * cursor.	It is displayed in decimal, hex, and octal. -- webb
8215      */
8216     case 'a':
8217 	do_ascii(NULL);
8218 	break;
8219 
8220 #ifdef FEAT_MBYTE
8221     /*
8222      * "g8": Display the bytes used for the UTF-8 character under the
8223      * cursor.	It is displayed in hex.
8224      * "8g8" finds illegal byte sequence.
8225      */
8226     case '8':
8227 	if (cap->count0 == 8)
8228 	    utf_find_illegal();
8229 	else
8230 	    show_utf8();
8231 	break;
8232 #endif
8233 
8234     case '<':
8235 	show_sb_text();
8236 	break;
8237 
8238     /*
8239      * "gg": Goto the first line in file.  With a count it goes to
8240      * that line number like for "G". -- webb
8241      */
8242     case 'g':
8243 	cap->arg = FALSE;
8244 	nv_goto(cap);
8245 	break;
8246 
8247     /*
8248      *	 Two-character operators:
8249      *	 "gq"	    Format text
8250      *	 "gw"	    Format text and keep cursor position
8251      *	 "g~"	    Toggle the case of the text.
8252      *	 "gu"	    Change text to lower case.
8253      *	 "gU"	    Change text to upper case.
8254      *   "g?"	    rot13 encoding
8255      *   "g@"	    call 'operatorfunc'
8256      */
8257     case 'q':
8258     case 'w':
8259 	oap->cursor_start = curwin->w_cursor;
8260 	/*FALLTHROUGH*/
8261     case '~':
8262     case 'u':
8263     case 'U':
8264     case '?':
8265     case '@':
8266 	nv_operator(cap);
8267 	break;
8268 
8269     /*
8270      * "gd": Find first occurrence of pattern under the cursor in the
8271      *	 current function
8272      * "gD": idem, but in the current file.
8273      */
8274     case 'd':
8275     case 'D':
8276 	nv_gd(oap, cap->nchar, (int)cap->count0);
8277 	break;
8278 
8279 #ifdef FEAT_MOUSE
8280     /*
8281      * g<*Mouse> : <C-*mouse>
8282      */
8283     case K_MIDDLEMOUSE:
8284     case K_MIDDLEDRAG:
8285     case K_MIDDLERELEASE:
8286     case K_LEFTMOUSE:
8287     case K_LEFTDRAG:
8288     case K_LEFTRELEASE:
8289     case K_RIGHTMOUSE:
8290     case K_RIGHTDRAG:
8291     case K_RIGHTRELEASE:
8292     case K_X1MOUSE:
8293     case K_X1DRAG:
8294     case K_X1RELEASE:
8295     case K_X2MOUSE:
8296     case K_X2DRAG:
8297     case K_X2RELEASE:
8298 	mod_mask = MOD_MASK_CTRL;
8299 	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
8300 	break;
8301 #endif
8302 
8303     case K_IGNORE:
8304 	break;
8305 
8306     /*
8307      * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
8308      */
8309     case 'p':
8310     case 'P':
8311 	nv_put(cap);
8312 	break;
8313 
8314 #ifdef FEAT_BYTEOFF
8315     /* "go": goto byte count from start of buffer */
8316     case 'o':
8317 	goto_byte(cap->count0);
8318 	break;
8319 #endif
8320 
8321     /* "gQ": improved Ex mode */
8322     case 'Q':
8323 	if (text_locked())
8324 	{
8325 	    clearopbeep(cap->oap);
8326 	    text_locked_msg();
8327 	    break;
8328 	}
8329 
8330 	if (!checkclearopq(oap))
8331 	    do_exmode(TRUE);
8332 	break;
8333 
8334 #ifdef FEAT_JUMPLIST
8335     case ',':
8336 	nv_pcmark(cap);
8337 	break;
8338 
8339     case ';':
8340 	cap->count1 = -cap->count1;
8341 	nv_pcmark(cap);
8342 	break;
8343 #endif
8344 
8345 #ifdef FEAT_WINDOWS
8346     case 't':
8347 	if (!checkclearop(oap))
8348 	    goto_tabpage((int)cap->count0);
8349 	break;
8350     case 'T':
8351 	if (!checkclearop(oap))
8352 	    goto_tabpage(-(int)cap->count1);
8353 	break;
8354 #endif
8355 
8356     case '+':
8357     case '-': /* "g+" and "g-": undo or redo along the timeline */
8358 	if (!checkclearopq(oap))
8359 	    undo_time(cap->nchar == '-' ? -cap->count1 : cap->count1,
8360 							 FALSE, FALSE, FALSE);
8361 	break;
8362 
8363     default:
8364 	clearopbeep(oap);
8365 	break;
8366     }
8367 }
8368 
8369 /*
8370  * Handle "o" and "O" commands.
8371  */
8372     static void
8373 n_opencmd(cmdarg_T *cap)
8374 {
8375 #ifdef FEAT_CONCEAL
8376     linenr_T	oldline = curwin->w_cursor.lnum;
8377 #endif
8378 
8379     if (!checkclearopq(cap->oap))
8380     {
8381 #ifdef FEAT_FOLDING
8382 	if (cap->cmdchar == 'O')
8383 	    /* Open above the first line of a folded sequence of lines */
8384 	    (void)hasFolding(curwin->w_cursor.lnum,
8385 						&curwin->w_cursor.lnum, NULL);
8386 	else
8387 	    /* Open below the last line of a folded sequence of lines */
8388 	    (void)hasFolding(curwin->w_cursor.lnum,
8389 						NULL, &curwin->w_cursor.lnum);
8390 #endif
8391 	if (u_save((linenr_T)(curwin->w_cursor.lnum -
8392 					       (cap->cmdchar == 'O' ? 1 : 0)),
8393 		   (linenr_T)(curwin->w_cursor.lnum +
8394 					       (cap->cmdchar == 'o' ? 1 : 0))
8395 		       ) == OK
8396 		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
8397 #ifdef FEAT_COMMENTS
8398 		    has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM :
8399 #endif
8400 		    0, 0))
8401 	{
8402 #ifdef FEAT_CONCEAL
8403 	    if (curwin->w_p_cole > 0 && oldline != curwin->w_cursor.lnum)
8404 		update_single_line(curwin, oldline);
8405 #endif
8406 	    /* When '#' is in 'cpoptions' ignore the count. */
8407 	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
8408 		cap->count1 = 1;
8409 #ifdef FEAT_SYN_HL
8410 	    if (curwin->w_p_cul)
8411 		/* force redraw of cursorline */
8412 		curwin->w_valid &= ~VALID_CROW;
8413 #endif
8414 	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
8415 	}
8416     }
8417 }
8418 
8419 /*
8420  * "." command: redo last change.
8421  */
8422     static void
8423 nv_dot(cmdarg_T *cap)
8424 {
8425     if (!checkclearopq(cap->oap))
8426     {
8427 	/*
8428 	 * If "restart_edit" is TRUE, the last but one command is repeated
8429 	 * instead of the last command (inserting text). This is used for
8430 	 * CTRL-O <.> in insert mode.
8431 	 */
8432 	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
8433 	    clearopbeep(cap->oap);
8434     }
8435 }
8436 
8437 /*
8438  * CTRL-R: undo undo
8439  */
8440     static void
8441 nv_redo(cmdarg_T *cap)
8442 {
8443     if (!checkclearopq(cap->oap))
8444     {
8445 	u_redo((int)cap->count1);
8446 	curwin->w_set_curswant = TRUE;
8447     }
8448 }
8449 
8450 /*
8451  * Handle "U" command.
8452  */
8453     static void
8454 nv_Undo(cmdarg_T *cap)
8455 {
8456     /* In Visual mode and typing "gUU" triggers an operator */
8457     if (cap->oap->op_type == OP_UPPER || VIsual_active)
8458     {
8459 	/* translate "gUU" to "gUgU" */
8460 	cap->cmdchar = 'g';
8461 	cap->nchar = 'U';
8462 	nv_operator(cap);
8463     }
8464     else if (!checkclearopq(cap->oap))
8465     {
8466 	u_undoline();
8467 	curwin->w_set_curswant = TRUE;
8468     }
8469 }
8470 
8471 /*
8472  * '~' command: If tilde is not an operator and Visual is off: swap case of a
8473  * single character.
8474  */
8475     static void
8476 nv_tilde(cmdarg_T *cap)
8477 {
8478     if (!p_to && !VIsual_active && cap->oap->op_type != OP_TILDE)
8479 	n_swapchar(cap);
8480     else
8481 	nv_operator(cap);
8482 }
8483 
8484 /*
8485  * Handle an operator command.
8486  * The actual work is done by do_pending_operator().
8487  */
8488     static void
8489 nv_operator(cmdarg_T *cap)
8490 {
8491     int	    op_type;
8492 
8493     op_type = get_op_type(cap->cmdchar, cap->nchar);
8494 
8495     if (op_type == cap->oap->op_type)	    /* double operator works on lines */
8496 	nv_lineop(cap);
8497     else if (!checkclearop(cap->oap))
8498     {
8499 	cap->oap->start = curwin->w_cursor;
8500 	cap->oap->op_type = op_type;
8501 #ifdef FEAT_EVAL
8502 	set_op_var(op_type);
8503 #endif
8504     }
8505 }
8506 
8507 #ifdef FEAT_EVAL
8508 /*
8509  * Set v:operator to the characters for "optype".
8510  */
8511     static void
8512 set_op_var(int optype)
8513 {
8514     char_u	opchars[3];
8515 
8516     if (optype == OP_NOP)
8517 	set_vim_var_string(VV_OP, NULL, 0);
8518     else
8519     {
8520 	opchars[0] = get_op_char(optype);
8521 	opchars[1] = get_extra_op_char(optype);
8522 	opchars[2] = NUL;
8523 	set_vim_var_string(VV_OP, opchars, -1);
8524     }
8525 }
8526 #endif
8527 
8528 /*
8529  * Handle linewise operator "dd", "yy", etc.
8530  *
8531  * "_" is is a strange motion command that helps make operators more logical.
8532  * It is actually implemented, but not documented in the real Vi.  This motion
8533  * command actually refers to "the current line".  Commands like "dd" and "yy"
8534  * are really an alternate form of "d_" and "y_".  It does accept a count, so
8535  * "d3_" works to delete 3 lines.
8536  */
8537     static void
8538 nv_lineop(cmdarg_T *cap)
8539 {
8540     cap->oap->motion_type = MLINE;
8541     if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
8542 	clearopbeep(cap->oap);
8543     else if (  (cap->oap->op_type == OP_DELETE /* only with linewise motions */
8544 		&& cap->oap->motion_force != 'v'
8545 		&& cap->oap->motion_force != Ctrl_V)
8546 	    || cap->oap->op_type == OP_LSHIFT
8547 	    || cap->oap->op_type == OP_RSHIFT)
8548 	beginline(BL_SOL | BL_FIX);
8549     else if (cap->oap->op_type != OP_YANK)	/* 'Y' does not move cursor */
8550 	beginline(BL_WHITE | BL_FIX);
8551 }
8552 
8553 /*
8554  * <Home> command.
8555  */
8556     static void
8557 nv_home(cmdarg_T *cap)
8558 {
8559     /* CTRL-HOME is like "gg" */
8560     if (mod_mask & MOD_MASK_CTRL)
8561 	nv_goto(cap);
8562     else
8563     {
8564 	cap->count0 = 1;
8565 	nv_pipe(cap);
8566     }
8567     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8568 			       one-character line). */
8569 }
8570 
8571 /*
8572  * "|" command.
8573  */
8574     static void
8575 nv_pipe(cmdarg_T *cap)
8576 {
8577     cap->oap->motion_type = MCHAR;
8578     cap->oap->inclusive = FALSE;
8579     beginline(0);
8580     if (cap->count0 > 0)
8581     {
8582 	coladvance((colnr_T)(cap->count0 - 1));
8583 	curwin->w_curswant = (colnr_T)(cap->count0 - 1);
8584     }
8585     else
8586 	curwin->w_curswant = 0;
8587     /* keep curswant at the column where we wanted to go, not where
8588      * we ended; differs if line is too short */
8589     curwin->w_set_curswant = FALSE;
8590 }
8591 
8592 /*
8593  * Handle back-word command "b" and "B".
8594  * cap->arg is 1 for "B"
8595  */
8596     static void
8597 nv_bck_word(cmdarg_T *cap)
8598 {
8599     cap->oap->motion_type = MCHAR;
8600     cap->oap->inclusive = FALSE;
8601     curwin->w_set_curswant = TRUE;
8602     if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
8603 	clearopbeep(cap->oap);
8604 #ifdef FEAT_FOLDING
8605     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8606 	foldOpenCursor();
8607 #endif
8608 }
8609 
8610 /*
8611  * Handle word motion commands "e", "E", "w" and "W".
8612  * cap->arg is TRUE for "E" and "W".
8613  */
8614     static void
8615 nv_wordcmd(cmdarg_T *cap)
8616 {
8617     int		n;
8618     int		word_end;
8619     int		flag = FALSE;
8620     pos_T	startpos = curwin->w_cursor;
8621 
8622     /*
8623      * Set inclusive for the "E" and "e" command.
8624      */
8625     if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
8626 	word_end = TRUE;
8627     else
8628 	word_end = FALSE;
8629     cap->oap->inclusive = word_end;
8630 
8631     /*
8632      * "cw" and "cW" are a special case.
8633      */
8634     if (!word_end && cap->oap->op_type == OP_CHANGE)
8635     {
8636 	n = gchar_cursor();
8637 	if (n != NUL)			/* not an empty line */
8638 	{
8639 	    if (vim_iswhite(n))
8640 	    {
8641 		/*
8642 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
8643 		 * changes one character, not all blanks until the start of
8644 		 * the next word.  Only do this when the 'w' flag is included
8645 		 * in 'cpoptions'.
8646 		 */
8647 		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
8648 		{
8649 		    cap->oap->inclusive = TRUE;
8650 		    cap->oap->motion_type = MCHAR;
8651 		    return;
8652 		}
8653 	    }
8654 	    else
8655 	    {
8656 		/*
8657 		 * This is a little strange. To match what the real Vi does,
8658 		 * we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
8659 		 * that we are not on a space or a TAB.  This seems impolite
8660 		 * at first, but it's really more what we mean when we say
8661 		 * 'cw'.
8662 		 * Another strangeness: When standing on the end of a word
8663 		 * "ce" will change until the end of the next word, but "cw"
8664 		 * will change only one character! This is done by setting
8665 		 * flag.
8666 		 */
8667 		cap->oap->inclusive = TRUE;
8668 		word_end = TRUE;
8669 		flag = TRUE;
8670 	    }
8671 	}
8672     }
8673 
8674     cap->oap->motion_type = MCHAR;
8675     curwin->w_set_curswant = TRUE;
8676     if (word_end)
8677 	n = end_word(cap->count1, cap->arg, flag, FALSE);
8678     else
8679 	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
8680 
8681     /* Don't leave the cursor on the NUL past the end of line. Unless we
8682      * didn't move it forward. */
8683     if (lt(startpos, curwin->w_cursor))
8684 	adjust_cursor(cap->oap);
8685 
8686     if (n == FAIL && cap->oap->op_type == OP_NOP)
8687 	clearopbeep(cap->oap);
8688     else
8689     {
8690 	adjust_for_sel(cap);
8691 #ifdef FEAT_FOLDING
8692 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8693 	    foldOpenCursor();
8694 #endif
8695     }
8696 }
8697 
8698 /*
8699  * Used after a movement command: If the cursor ends up on the NUL after the
8700  * end of the line, may move it back to the last character and make the motion
8701  * inclusive.
8702  */
8703     static void
8704 adjust_cursor(oparg_T *oap)
8705 {
8706     /* The cursor cannot remain on the NUL when:
8707      * - the column is > 0
8708      * - not in Visual mode or 'selection' is "o"
8709      * - 'virtualedit' is not "all" and not "onemore".
8710      */
8711     if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL
8712 		&& (!VIsual_active || *p_sel == 'o')
8713 #ifdef FEAT_VIRTUALEDIT
8714 		&& !virtual_active() && (ve_flags & VE_ONEMORE) == 0
8715 #endif
8716 		)
8717     {
8718 	--curwin->w_cursor.col;
8719 #ifdef FEAT_MBYTE
8720 	/* prevent cursor from moving on the trail byte */
8721 	if (has_mbyte)
8722 	    mb_adjust_cursor();
8723 #endif
8724 	oap->inclusive = TRUE;
8725     }
8726 }
8727 
8728 /*
8729  * "0" and "^" commands.
8730  * cap->arg is the argument for beginline().
8731  */
8732     static void
8733 nv_beginline(cmdarg_T *cap)
8734 {
8735     cap->oap->motion_type = MCHAR;
8736     cap->oap->inclusive = FALSE;
8737     beginline(cap->arg);
8738 #ifdef FEAT_FOLDING
8739     if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8740 	foldOpenCursor();
8741 #endif
8742     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8743 			       one-character line). */
8744 }
8745 
8746 /*
8747  * In exclusive Visual mode, may include the last character.
8748  */
8749     static void
8750 adjust_for_sel(cmdarg_T *cap)
8751 {
8752     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
8753 	    && gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor))
8754     {
8755 #ifdef FEAT_MBYTE
8756 	if (has_mbyte)
8757 	    inc_cursor();
8758 	else
8759 #endif
8760 	    ++curwin->w_cursor.col;
8761 	cap->oap->inclusive = FALSE;
8762     }
8763 }
8764 
8765 /*
8766  * Exclude last character at end of Visual area for 'selection' == "exclusive".
8767  * Should check VIsual_mode before calling this.
8768  * Returns TRUE when backed up to the previous line.
8769  */
8770     static int
8771 unadjust_for_sel(void)
8772 {
8773     pos_T	*pp;
8774 
8775     if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor))
8776     {
8777 	if (lt(VIsual, curwin->w_cursor))
8778 	    pp = &curwin->w_cursor;
8779 	else
8780 	    pp = &VIsual;
8781 #ifdef FEAT_VIRTUALEDIT
8782 	if (pp->coladd > 0)
8783 	    --pp->coladd;
8784 	else
8785 #endif
8786 	if (pp->col > 0)
8787 	{
8788 	    --pp->col;
8789 #ifdef FEAT_MBYTE
8790 	    mb_adjustpos(curbuf, pp);
8791 #endif
8792 	}
8793 	else if (pp->lnum > 1)
8794 	{
8795 	    --pp->lnum;
8796 	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
8797 	    return TRUE;
8798 	}
8799     }
8800     return FALSE;
8801 }
8802 
8803 /*
8804  * SELECT key in Normal or Visual mode: end of Select mode mapping.
8805  */
8806     static void
8807 nv_select(cmdarg_T *cap)
8808 {
8809     if (VIsual_active)
8810 	VIsual_select = TRUE;
8811     else if (VIsual_reselect)
8812     {
8813 	cap->nchar = 'v';	    /* fake "gv" command */
8814 	cap->arg = TRUE;
8815 	nv_g_cmd(cap);
8816     }
8817 }
8818 
8819 
8820 /*
8821  * "G", "gg", CTRL-END, CTRL-HOME.
8822  * cap->arg is TRUE for "G".
8823  */
8824     static void
8825 nv_goto(cmdarg_T *cap)
8826 {
8827     linenr_T	lnum;
8828 
8829     if (cap->arg)
8830 	lnum = curbuf->b_ml.ml_line_count;
8831     else
8832 	lnum = 1L;
8833     cap->oap->motion_type = MLINE;
8834     setpcmark();
8835 
8836     /* When a count is given, use it instead of the default lnum */
8837     if (cap->count0 != 0)
8838 	lnum = cap->count0;
8839     if (lnum < 1L)
8840 	lnum = 1L;
8841     else if (lnum > curbuf->b_ml.ml_line_count)
8842 	lnum = curbuf->b_ml.ml_line_count;
8843     curwin->w_cursor.lnum = lnum;
8844     beginline(BL_SOL | BL_FIX);
8845 #ifdef FEAT_FOLDING
8846     if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP)
8847 	foldOpenCursor();
8848 #endif
8849 }
8850 
8851 /*
8852  * CTRL-\ in Normal mode.
8853  */
8854     static void
8855 nv_normal(cmdarg_T *cap)
8856 {
8857     if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G)
8858     {
8859 	clearop(cap->oap);
8860 	if (restart_edit != 0 && mode_displayed)
8861 	    clear_cmdline = TRUE;		/* unshow mode later */
8862 	restart_edit = 0;
8863 #ifdef FEAT_CMDWIN
8864 	if (cmdwin_type != 0)
8865 	    cmdwin_result = Ctrl_C;
8866 #endif
8867 	if (VIsual_active)
8868 	{
8869 	    end_visual_mode();		/* stop Visual */
8870 	    redraw_curbuf_later(INVERTED);
8871 	}
8872 	/* CTRL-\ CTRL-G restarts Insert mode when 'insertmode' is set. */
8873 	if (cap->nchar == Ctrl_G && p_im)
8874 	    restart_edit = 'a';
8875     }
8876     else
8877 	clearopbeep(cap->oap);
8878 }
8879 
8880 /*
8881  * ESC in Normal mode: beep, but don't flush buffers.
8882  * Don't even beep if we are canceling a command.
8883  */
8884     static void
8885 nv_esc(cmdarg_T *cap)
8886 {
8887     int		no_reason;
8888 
8889     no_reason = (cap->oap->op_type == OP_NOP
8890 		&& cap->opcount == 0
8891 		&& cap->count0 == 0
8892 		&& cap->oap->regname == 0
8893 		&& !p_im);
8894 
8895     if (cap->arg)		/* TRUE for CTRL-C */
8896     {
8897 	if (restart_edit == 0
8898 #ifdef FEAT_CMDWIN
8899 		&& cmdwin_type == 0
8900 #endif
8901 		&& !VIsual_active
8902 		&& no_reason)
8903 	    MSG(_("Type  :quit<Enter>  to exit Vim"));
8904 
8905 	/* Don't reset "restart_edit" when 'insertmode' is set, it won't be
8906 	 * set again below when halfway a mapping. */
8907 	if (!p_im)
8908 	    restart_edit = 0;
8909 #ifdef FEAT_CMDWIN
8910 	if (cmdwin_type != 0)
8911 	{
8912 	    cmdwin_result = K_IGNORE;
8913 	    got_int = FALSE;	/* don't stop executing autocommands et al. */
8914 	    return;
8915 	}
8916 #endif
8917     }
8918 
8919     if (VIsual_active)
8920     {
8921 	end_visual_mode();	/* stop Visual */
8922 	check_cursor_col();	/* make sure cursor is not beyond EOL */
8923 	curwin->w_set_curswant = TRUE;
8924 	redraw_curbuf_later(INVERTED);
8925     }
8926     else if (no_reason)
8927 	vim_beep(BO_ESC);
8928     clearop(cap->oap);
8929 
8930     /* A CTRL-C is often used at the start of a menu.  When 'insertmode' is
8931      * set return to Insert mode afterwards. */
8932     if (restart_edit == 0 && goto_im() && ex_normal_busy == 0)
8933 	restart_edit = 'a';
8934 }
8935 
8936 /*
8937  * Handle "A", "a", "I", "i" and <Insert> commands.
8938  */
8939     static void
8940 nv_edit(cmdarg_T *cap)
8941 {
8942     /* <Insert> is equal to "i" */
8943     if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
8944 	cap->cmdchar = 'i';
8945 
8946     /* in Visual mode "A" and "I" are an operator */
8947     if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
8948 	v_visop(cap);
8949 
8950     /* in Visual mode and after an operator "a" and "i" are for text objects */
8951     else if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
8952 	    && (cap->oap->op_type != OP_NOP || VIsual_active))
8953     {
8954 #ifdef FEAT_TEXTOBJ
8955 	nv_object(cap);
8956 #else
8957 	clearopbeep(cap->oap);
8958 #endif
8959     }
8960     else if (!curbuf->b_p_ma && !p_im)
8961     {
8962 	/* Only give this error when 'insertmode' is off. */
8963 	EMSG(_(e_modifiable));
8964 	clearop(cap->oap);
8965     }
8966     else if (!checkclearopq(cap->oap))
8967     {
8968 	switch (cap->cmdchar)
8969 	{
8970 	    case 'A':	/* "A"ppend after the line */
8971 		curwin->w_set_curswant = TRUE;
8972 #ifdef FEAT_VIRTUALEDIT
8973 		if (ve_flags == VE_ALL)
8974 		{
8975 		    int save_State = State;
8976 
8977 		    /* Pretend Insert mode here to allow the cursor on the
8978 		     * character past the end of the line */
8979 		    State = INSERT;
8980 		    coladvance((colnr_T)MAXCOL);
8981 		    State = save_State;
8982 		}
8983 		else
8984 #endif
8985 		    curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
8986 		break;
8987 
8988 	    case 'I':	/* "I"nsert before the first non-blank */
8989 		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
8990 		    beginline(BL_WHITE);
8991 		else
8992 		    beginline(BL_WHITE|BL_FIX);
8993 		break;
8994 
8995 	    case 'a':	/* "a"ppend is like "i"nsert on the next character. */
8996 #ifdef FEAT_VIRTUALEDIT
8997 		/* increment coladd when in virtual space, increment the
8998 		 * column otherwise, also to append after an unprintable char */
8999 		if (virtual_active()
9000 			&& (curwin->w_cursor.coladd > 0
9001 			    || *ml_get_cursor() == NUL
9002 			    || *ml_get_cursor() == TAB))
9003 		    curwin->w_cursor.coladd++;
9004 		else
9005 #endif
9006 		if (*ml_get_cursor() != NUL)
9007 		    inc_cursor();
9008 		break;
9009 	}
9010 
9011 #ifdef FEAT_VIRTUALEDIT
9012 	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
9013 	{
9014 	    int save_State = State;
9015 
9016 	    /* Pretend Insert mode here to allow the cursor on the
9017 	     * character past the end of the line */
9018 	    State = INSERT;
9019 	    coladvance(getviscol());
9020 	    State = save_State;
9021 	}
9022 #endif
9023 
9024 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
9025     }
9026 }
9027 
9028 /*
9029  * Invoke edit() and take care of "restart_edit" and the return value.
9030  */
9031     static void
9032 invoke_edit(
9033     cmdarg_T	*cap,
9034     int		repl,		/* "r" or "gr" command */
9035     int		cmd,
9036     int		startln)
9037 {
9038     int		restart_edit_save = 0;
9039 
9040     /* Complicated: When the user types "a<C-O>a" we don't want to do Insert
9041      * mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
9042      * it. */
9043     if (repl || !stuff_empty())
9044 	restart_edit_save = restart_edit;
9045     else
9046 	restart_edit_save = 0;
9047 
9048     /* Always reset "restart_edit", this is not a restarted edit. */
9049     restart_edit = 0;
9050 
9051     if (edit(cmd, startln, cap->count1))
9052 	cap->retval |= CA_COMMAND_BUSY;
9053 
9054     if (restart_edit == 0)
9055 	restart_edit = restart_edit_save;
9056 }
9057 
9058 #ifdef FEAT_TEXTOBJ
9059 /*
9060  * "a" or "i" while an operator is pending or in Visual mode: object motion.
9061  */
9062     static void
9063 nv_object(
9064     cmdarg_T	*cap)
9065 {
9066     int		flag;
9067     int		include;
9068     char_u	*mps_save;
9069 
9070     if (cap->cmdchar == 'i')
9071 	include = FALSE;    /* "ix" = inner object: exclude white space */
9072     else
9073 	include = TRUE;	    /* "ax" = an object: include white space */
9074 
9075     /* Make sure (), [], {} and <> are in 'matchpairs' */
9076     mps_save = curbuf->b_p_mps;
9077     curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";
9078 
9079     switch (cap->nchar)
9080     {
9081 	case 'w': /* "aw" = a word */
9082 		flag = current_word(cap->oap, cap->count1, include, FALSE);
9083 		break;
9084 	case 'W': /* "aW" = a WORD */
9085 		flag = current_word(cap->oap, cap->count1, include, TRUE);
9086 		break;
9087 	case 'b': /* "ab" = a braces block */
9088 	case '(':
9089 	case ')':
9090 		flag = current_block(cap->oap, cap->count1, include, '(', ')');
9091 		break;
9092 	case 'B': /* "aB" = a Brackets block */
9093 	case '{':
9094 	case '}':
9095 		flag = current_block(cap->oap, cap->count1, include, '{', '}');
9096 		break;
9097 	case '[': /* "a[" = a [] block */
9098 	case ']':
9099 		flag = current_block(cap->oap, cap->count1, include, '[', ']');
9100 		break;
9101 	case '<': /* "a<" = a <> block */
9102 	case '>':
9103 		flag = current_block(cap->oap, cap->count1, include, '<', '>');
9104 		break;
9105 	case 't': /* "at" = a tag block (xml and html) */
9106 		/* Do not adjust oap->end in do_pending_operator()
9107 		 * otherwise there are different results for 'dit'
9108 		 * (note leading whitespace in last line):
9109 		 * 1) <b>      2) <b>
9110 		 *    foobar      foobar
9111 		 *    </b>            </b>
9112 		 */
9113 		cap->retval |= CA_NO_ADJ_OP_END;
9114 		flag = current_tagblock(cap->oap, cap->count1, include);
9115 		break;
9116 	case 'p': /* "ap" = a paragraph */
9117 		flag = current_par(cap->oap, cap->count1, include, 'p');
9118 		break;
9119 	case 's': /* "as" = a sentence */
9120 		flag = current_sent(cap->oap, cap->count1, include);
9121 		break;
9122 	case '"': /* "a"" = a double quoted string */
9123 	case '\'': /* "a'" = a single quoted string */
9124 	case '`': /* "a`" = a backtick quoted string */
9125 		flag = current_quote(cap->oap, cap->count1, include,
9126 								  cap->nchar);
9127 		break;
9128 #if 0	/* TODO */
9129 	case 'S': /* "aS" = a section */
9130 	case 'f': /* "af" = a filename */
9131 	case 'u': /* "au" = a URL */
9132 #endif
9133 	default:
9134 		flag = FAIL;
9135 		break;
9136     }
9137 
9138     curbuf->b_p_mps = mps_save;
9139     if (flag == FAIL)
9140 	clearopbeep(cap->oap);
9141     adjust_cursor_col();
9142     curwin->w_set_curswant = TRUE;
9143 }
9144 #endif
9145 
9146 /*
9147  * "q" command: Start/stop recording.
9148  * "q:", "q/", "q?": edit command-line in command-line window.
9149  */
9150     static void
9151 nv_record(cmdarg_T *cap)
9152 {
9153     if (cap->oap->op_type == OP_FORMAT)
9154     {
9155 	/* "gqq" is the same as "gqgq": format line */
9156 	cap->cmdchar = 'g';
9157 	cap->nchar = 'q';
9158 	nv_operator(cap);
9159     }
9160     else if (!checkclearop(cap->oap))
9161     {
9162 #ifdef FEAT_CMDWIN
9163 	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
9164 	{
9165 	    stuffcharReadbuff(cap->nchar);
9166 	    stuffcharReadbuff(K_CMDWIN);
9167 	}
9168 	else
9169 #endif
9170 	    /* (stop) recording into a named register, unless executing a
9171 	     * register */
9172 	    if (!Exec_reg && do_record(cap->nchar) == FAIL)
9173 		clearopbeep(cap->oap);
9174     }
9175 }
9176 
9177 /*
9178  * Handle the "@r" command.
9179  */
9180     static void
9181 nv_at(cmdarg_T *cap)
9182 {
9183     if (checkclearop(cap->oap))
9184 	return;
9185 #ifdef FEAT_EVAL
9186     if (cap->nchar == '=')
9187     {
9188 	if (get_expr_register() == NUL)
9189 	    return;
9190     }
9191 #endif
9192     while (cap->count1-- && !got_int)
9193     {
9194 	if (do_execreg(cap->nchar, FALSE, FALSE, FALSE) == FAIL)
9195 	{
9196 	    clearopbeep(cap->oap);
9197 	    break;
9198 	}
9199 	line_breakcheck();
9200     }
9201 }
9202 
9203 /*
9204  * Handle the CTRL-U and CTRL-D commands.
9205  */
9206     static void
9207 nv_halfpage(cmdarg_T *cap)
9208 {
9209     if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
9210 	    || (cap->cmdchar == Ctrl_D
9211 		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
9212 	clearopbeep(cap->oap);
9213     else if (!checkclearop(cap->oap))
9214 	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
9215 }
9216 
9217 /*
9218  * Handle "J" or "gJ" command.
9219  */
9220     static void
9221 nv_join(cmdarg_T *cap)
9222 {
9223     if (VIsual_active)	/* join the visual lines */
9224 	nv_operator(cap);
9225     else if (!checkclearop(cap->oap))
9226     {
9227 	if (cap->count0 <= 1)
9228 	    cap->count0 = 2;	    /* default for join is two lines! */
9229 	if (curwin->w_cursor.lnum + cap->count0 - 1 >
9230 						   curbuf->b_ml.ml_line_count)
9231 	{
9232 	    /* can't join when on the last line */
9233 	    if (cap->count0 <= 2)
9234 	    {
9235 		clearopbeep(cap->oap);
9236 		return;
9237 	    }
9238 	    cap->count0 = curbuf->b_ml.ml_line_count
9239 						  - curwin->w_cursor.lnum + 1;
9240 	}
9241 
9242 	prep_redo(cap->oap->regname, cap->count0,
9243 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
9244 	(void)do_join(cap->count0, cap->nchar == NUL, TRUE, TRUE, TRUE);
9245     }
9246 }
9247 
9248 /*
9249  * "P", "gP", "p" and "gp" commands.
9250  */
9251     static void
9252 nv_put(cmdarg_T *cap)
9253 {
9254     int		regname = 0;
9255     void	*reg1 = NULL, *reg2 = NULL;
9256     int		empty = FALSE;
9257     int		was_visual = FALSE;
9258     int		dir;
9259     int		flags = 0;
9260 
9261     if (cap->oap->op_type != OP_NOP)
9262     {
9263 #ifdef FEAT_DIFF
9264 	/* "dp" is ":diffput" */
9265 	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
9266 	{
9267 	    clearop(cap->oap);
9268 	    nv_diffgetput(TRUE, cap->opcount);
9269 	}
9270 	else
9271 #endif
9272 	clearopbeep(cap->oap);
9273     }
9274     else
9275     {
9276 	dir = (cap->cmdchar == 'P'
9277 		|| (cap->cmdchar == 'g' && cap->nchar == 'P'))
9278 							 ? BACKWARD : FORWARD;
9279 	prep_redo_cmd(cap);
9280 	if (cap->cmdchar == 'g')
9281 	    flags |= PUT_CURSEND;
9282 
9283 	if (VIsual_active)
9284 	{
9285 	    /* Putting in Visual mode: The put text replaces the selected
9286 	     * text.  First delete the selected text, then put the new text.
9287 	     * Need to save and restore the registers that the delete
9288 	     * overwrites if the old contents is being put.
9289 	     */
9290 	    was_visual = TRUE;
9291 	    regname = cap->oap->regname;
9292 #ifdef FEAT_CLIPBOARD
9293 	    adjust_clip_reg(&regname);
9294 #endif
9295 	   if (regname == 0 || regname == '"'
9296 				     || VIM_ISDIGIT(regname) || regname == '-'
9297 #ifdef FEAT_CLIPBOARD
9298 		    || (clip_unnamed && (regname == '*' || regname == '+'))
9299 #endif
9300 
9301 		    )
9302 	    {
9303 		/* The delete is going to overwrite the register we want to
9304 		 * put, save it first. */
9305 		reg1 = get_register(regname, TRUE);
9306 	    }
9307 
9308 	    /* Now delete the selected text. */
9309 	    cap->cmdchar = 'd';
9310 	    cap->nchar = NUL;
9311 	    cap->oap->regname = NUL;
9312 	    nv_operator(cap);
9313 	    do_pending_operator(cap, 0, FALSE);
9314 	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
9315 
9316 	    /* delete PUT_LINE_BACKWARD; */
9317 	    cap->oap->regname = regname;
9318 
9319 	    if (reg1 != NULL)
9320 	    {
9321 		/* Delete probably changed the register we want to put, save
9322 		 * it first. Then put back what was there before the delete. */
9323 		reg2 = get_register(regname, FALSE);
9324 		put_register(regname, reg1);
9325 	    }
9326 
9327 	    /* When deleted a linewise Visual area, put the register as
9328 	     * lines to avoid it joined with the next line.  When deletion was
9329 	     * characterwise, split a line when putting lines. */
9330 	    if (VIsual_mode == 'V')
9331 		flags |= PUT_LINE;
9332 	    else if (VIsual_mode == 'v')
9333 		flags |= PUT_LINE_SPLIT;
9334 	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
9335 		flags |= PUT_LINE_FORWARD;
9336 	    dir = BACKWARD;
9337 	    if ((VIsual_mode != 'V'
9338 			&& curwin->w_cursor.col < curbuf->b_op_start.col)
9339 		    || (VIsual_mode == 'V'
9340 			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
9341 		/* cursor is at the end of the line or end of file, put
9342 		 * forward. */
9343 		dir = FORWARD;
9344 	    /* May have been reset in do_put(). */
9345 	    VIsual_active = TRUE;
9346 	}
9347 	do_put(cap->oap->regname, dir, cap->count1, flags);
9348 
9349 	/* If a register was saved, put it back now. */
9350 	if (reg2 != NULL)
9351 	    put_register(regname, reg2);
9352 
9353 	/* What to reselect with "gv"?  Selecting the just put text seems to
9354 	 * be the most useful, since the original text was removed. */
9355 	if (was_visual)
9356 	{
9357 	    curbuf->b_visual.vi_start = curbuf->b_op_start;
9358 	    curbuf->b_visual.vi_end = curbuf->b_op_end;
9359 	    /* need to adjust cursor position */
9360 	    if (*p_sel == 'e')
9361 		inc(&curbuf->b_visual.vi_end);
9362 	}
9363 
9364 	/* When all lines were selected and deleted do_put() leaves an empty
9365 	 * line that needs to be deleted now. */
9366 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
9367 	{
9368 	    ml_delete(curbuf->b_ml.ml_line_count, TRUE);
9369 
9370 	    /* If the cursor was in that line, move it to the end of the last
9371 	     * line. */
9372 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
9373 	    {
9374 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
9375 		coladvance((colnr_T)MAXCOL);
9376 	    }
9377 	}
9378 	auto_format(FALSE, TRUE);
9379     }
9380 }
9381 
9382 /*
9383  * "o" and "O" commands.
9384  */
9385     static void
9386 nv_open(cmdarg_T *cap)
9387 {
9388 #ifdef FEAT_DIFF
9389     /* "do" is ":diffget" */
9390     if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
9391     {
9392 	clearop(cap->oap);
9393 	nv_diffgetput(FALSE, cap->opcount);
9394     }
9395     else
9396 #endif
9397     if (VIsual_active)  /* switch start and end of visual */
9398 	v_swap_corners(cap->cmdchar);
9399     else
9400 	n_opencmd(cap);
9401 }
9402 
9403 #ifdef FEAT_NETBEANS_INTG
9404     static void
9405 nv_nbcmd(cmdarg_T *cap)
9406 {
9407     netbeans_keycommand(cap->nchar);
9408 }
9409 #endif
9410 
9411 #ifdef FEAT_DND
9412     static void
9413 nv_drop(cmdarg_T *cap UNUSED)
9414 {
9415     do_put('~', BACKWARD, 1L, PUT_CURSEND);
9416 }
9417 #endif
9418 
9419 #ifdef FEAT_AUTOCMD
9420 /*
9421  * Trigger CursorHold event.
9422  * When waiting for a character for 'updatetime' K_CURSORHOLD is put in the
9423  * input buffer.  "did_cursorhold" is set to avoid retriggering.
9424  */
9425     static void
9426 nv_cursorhold(cmdarg_T *cap)
9427 {
9428     apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
9429     did_cursorhold = TRUE;
9430     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
9431 }
9432 #endif
9433 
9434 /*
9435  * Calculate start/end virtual columns for operating in block mode.
9436  */
9437     static void
9438 get_op_vcol(
9439     oparg_T	*oap,
9440     colnr_T	redo_VIsual_vcol,
9441     int		initial)    /* when TRUE adjust position for 'selectmode' */
9442 {
9443     colnr_T	    start, end;
9444 
9445     if (VIsual_mode != Ctrl_V
9446 	    || (!initial && oap->end.col < W_WIDTH(curwin)))
9447 	return;
9448 
9449     oap->block_mode = TRUE;
9450 
9451 #ifdef FEAT_MBYTE
9452     /* prevent from moving onto a trail byte */
9453     if (has_mbyte)
9454     {
9455 	check_pos(curwin->w_buffer, &oap->end);
9456 	mb_adjustpos(curwin->w_buffer, &oap->end);
9457     }
9458 #endif
9459 
9460     getvvcol(curwin, &(oap->start), &oap->start_vcol, NULL, &oap->end_vcol);
9461 
9462     if (!redo_VIsual_busy)
9463     {
9464 	getvvcol(curwin, &(oap->end), &start, NULL, &end);
9465 
9466 	if (start < oap->start_vcol)
9467 	    oap->start_vcol = start;
9468 	if (end > oap->end_vcol)
9469 	{
9470 	    if (initial && *p_sel == 'e' && start >= 1
9471 				    && start - 1 >= oap->end_vcol)
9472 		oap->end_vcol = start - 1;
9473 	    else
9474 		oap->end_vcol = end;
9475 	}
9476     }
9477 
9478     /* if '$' was used, get oap->end_vcol from longest line */
9479     if (curwin->w_curswant == MAXCOL)
9480     {
9481 	curwin->w_cursor.col = MAXCOL;
9482 	oap->end_vcol = 0;
9483 	for (curwin->w_cursor.lnum = oap->start.lnum;
9484 		curwin->w_cursor.lnum <= oap->end.lnum;
9485 					++curwin->w_cursor.lnum)
9486 	{
9487 	    getvvcol(curwin, &curwin->w_cursor, NULL, NULL, &end);
9488 	    if (end > oap->end_vcol)
9489 		oap->end_vcol = end;
9490 	}
9491     }
9492     else if (redo_VIsual_busy)
9493 	oap->end_vcol = oap->start_vcol + redo_VIsual_vcol - 1;
9494     /*
9495     * Correct oap->end.col and oap->start.col to be the
9496     * upper-left and lower-right corner of the block area.
9497     *
9498     * (Actually, this does convert column positions into character
9499     * positions)
9500     */
9501     curwin->w_cursor.lnum = oap->end.lnum;
9502     coladvance(oap->end_vcol);
9503     oap->end = curwin->w_cursor;
9504 
9505     curwin->w_cursor = oap->start;
9506     coladvance(oap->start_vcol);
9507     oap->start = curwin->w_cursor;
9508 }
9509