xref: /vim-8.2.3635/src/normal.c (revision e344bead)
1 /* vi:set ts=8 sts=4 sw=4:
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 #ifdef FEAT_VISUAL
18 /*
19  * The Visual area is remembered for reselection.
20  */
21 static int	resel_VIsual_mode = NUL;	/* 'v', 'V', or Ctrl-V */
22 static linenr_T	resel_VIsual_line_count;	/* number of lines */
23 static colnr_T	resel_VIsual_col;		/* nr of cols or end col */
24 
25 static int	restart_VIsual_select = 0;
26 #endif
27 
28 static int
29 # ifdef __BORLANDC__
30 _RTLENTRYF
31 # endif
32 		nv_compare __ARGS((const void *s1, const void *s2));
33 static int	find_command __ARGS((int cmdchar));
34 static void	op_colon __ARGS((oparg_T *oap));
35 #if defined(FEAT_MOUSE) && defined(FEAT_VISUAL)
36 static void	find_start_of_word __ARGS((pos_T *));
37 static void	find_end_of_word __ARGS((pos_T *));
38 static int	get_mouse_class __ARGS((char_u *p));
39 #endif
40 static void	prep_redo_cmd __ARGS((cmdarg_T *cap));
41 static void	prep_redo __ARGS((int regname, long, int, int, int, int, int));
42 static int	checkclearop __ARGS((oparg_T *oap));
43 static int	checkclearopq __ARGS((oparg_T *oap));
44 static void	clearop __ARGS((oparg_T *oap));
45 static void	clearopbeep __ARGS((oparg_T *oap));
46 #ifdef FEAT_VISUAL
47 static void	unshift_special __ARGS((cmdarg_T *cap));
48 #endif
49 #ifdef FEAT_CMDL_INFO
50 static void	del_from_showcmd __ARGS((int));
51 #endif
52 
53 /*
54  * nv_*(): functions called to handle Normal and Visual mode commands.
55  * n_*(): functions called to handle Normal mode commands.
56  * v_*(): functions called to handle Visual mode commands.
57  */
58 static void	nv_ignore __ARGS((cmdarg_T *cap));
59 static void	nv_error __ARGS((cmdarg_T *cap));
60 static void	nv_help __ARGS((cmdarg_T *cap));
61 static void	nv_addsub __ARGS((cmdarg_T *cap));
62 static void	nv_page __ARGS((cmdarg_T *cap));
63 static void	nv_gd __ARGS((oparg_T *oap, int nchar));
64 static int	nv_screengo __ARGS((oparg_T *oap, int dir, long dist));
65 #ifdef FEAT_MOUSE
66 static void	nv_mousescroll __ARGS((cmdarg_T *cap));
67 static void	nv_mouse __ARGS((cmdarg_T *cap));
68 #endif
69 static void	nv_scroll_line __ARGS((cmdarg_T *cap));
70 static void	nv_zet __ARGS((cmdarg_T *cap));
71 #ifdef FEAT_GUI
72 static void	nv_ver_scrollbar __ARGS((cmdarg_T *cap));
73 static void	nv_hor_scrollbar __ARGS((cmdarg_T *cap));
74 #endif
75 static void	nv_exmode __ARGS((cmdarg_T *cap));
76 static void	nv_colon __ARGS((cmdarg_T *cap));
77 static void	nv_ctrlg __ARGS((cmdarg_T *cap));
78 static void	nv_ctrlh __ARGS((cmdarg_T *cap));
79 static void	nv_clear __ARGS((cmdarg_T *cap));
80 static void	nv_ctrlo __ARGS((cmdarg_T *cap));
81 static void	nv_hat __ARGS((cmdarg_T *cap));
82 static void	nv_Zet __ARGS((cmdarg_T *cap));
83 static void	nv_ident __ARGS((cmdarg_T *cap));
84 static void	nv_tagpop __ARGS((cmdarg_T *cap));
85 static void	nv_scroll __ARGS((cmdarg_T *cap));
86 static void	nv_right __ARGS((cmdarg_T *cap));
87 static void	nv_left __ARGS((cmdarg_T *cap));
88 static void	nv_up __ARGS((cmdarg_T *cap));
89 static void	nv_down __ARGS((cmdarg_T *cap));
90 #ifdef FEAT_SEARCHPATH
91 static void	nv_gotofile __ARGS((cmdarg_T *cap));
92 #endif
93 static void	nv_end __ARGS((cmdarg_T *cap));
94 static void	nv_dollar __ARGS((cmdarg_T *cap));
95 static void	nv_search __ARGS((cmdarg_T *cap));
96 static void	nv_next __ARGS((cmdarg_T *cap));
97 static void	normal_search __ARGS((cmdarg_T *cap, int dir, char_u *pat, int opt));
98 static void	nv_csearch __ARGS((cmdarg_T *cap));
99 static void	nv_brackets __ARGS((cmdarg_T *cap));
100 static void	nv_percent __ARGS((cmdarg_T *cap));
101 static void	nv_brace __ARGS((cmdarg_T *cap));
102 static void	nv_mark __ARGS((cmdarg_T *cap));
103 static void	nv_findpar __ARGS((cmdarg_T *cap));
104 static void	nv_undo __ARGS((cmdarg_T *cap));
105 static void	nv_kundo __ARGS((cmdarg_T *cap));
106 static void	nv_Replace __ARGS((cmdarg_T *cap));
107 #ifdef FEAT_VREPLACE
108 static void	nv_vreplace __ARGS((cmdarg_T *cap));
109 #endif
110 #ifdef FEAT_VISUAL
111 static void	v_swap_corners __ARGS((int cmdchar));
112 #endif
113 static void	nv_replace __ARGS((cmdarg_T *cap));
114 static void	n_swapchar __ARGS((cmdarg_T *cap));
115 static void	nv_cursormark __ARGS((cmdarg_T *cap, int flag, pos_T *pos));
116 #ifdef FEAT_VISUAL
117 static void	v_visop __ARGS((cmdarg_T *cap));
118 #endif
119 static void	nv_subst __ARGS((cmdarg_T *cap));
120 static void	nv_abbrev __ARGS((cmdarg_T *cap));
121 static void	nv_optrans __ARGS((cmdarg_T *cap));
122 static void	nv_gomark __ARGS((cmdarg_T *cap));
123 static void	nv_pcmark __ARGS((cmdarg_T *cap));
124 static void	nv_regname __ARGS((cmdarg_T *cap));
125 #ifdef FEAT_VISUAL
126 static void	nv_visual __ARGS((cmdarg_T *cap));
127 static void	n_start_visual_mode __ARGS((int c));
128 #endif
129 static void	nv_window __ARGS((cmdarg_T *cap));
130 static void	nv_suspend __ARGS((cmdarg_T *cap));
131 static void	nv_g_cmd __ARGS((cmdarg_T *cap));
132 static void	n_opencmd __ARGS((cmdarg_T *cap));
133 static void	nv_dot __ARGS((cmdarg_T *cap));
134 static void	nv_redo __ARGS((cmdarg_T *cap));
135 static void	nv_Undo __ARGS((cmdarg_T *cap));
136 static void	nv_tilde __ARGS((cmdarg_T *cap));
137 static void	nv_operator __ARGS((cmdarg_T *cap));
138 static void	nv_lineop __ARGS((cmdarg_T *cap));
139 static void	nv_home __ARGS((cmdarg_T *cap));
140 static void	nv_pipe __ARGS((cmdarg_T *cap));
141 static void	nv_bck_word __ARGS((cmdarg_T *cap));
142 static void	nv_wordcmd __ARGS((cmdarg_T *cap));
143 static void	nv_beginline __ARGS((cmdarg_T *cap));
144 #ifdef FEAT_VISUAL
145 static void	adjust_for_sel __ARGS((cmdarg_T *cap));
146 static int	unadjust_for_sel __ARGS((void));
147 static void	nv_select __ARGS((cmdarg_T *cap));
148 #endif
149 static void	nv_goto __ARGS((cmdarg_T *cap));
150 static void	nv_normal __ARGS((cmdarg_T *cap));
151 static void	nv_esc __ARGS((cmdarg_T *oap));
152 static void	nv_edit __ARGS((cmdarg_T *cap));
153 static void	invoke_edit __ARGS((cmdarg_T *cap, int repl, int cmd, int startln));
154 #ifdef FEAT_TEXTOBJ
155 static void	nv_object __ARGS((cmdarg_T *cap));
156 #endif
157 static void	nv_record __ARGS((cmdarg_T *cap));
158 static void	nv_at __ARGS((cmdarg_T *cap));
159 static void	nv_halfpage __ARGS((cmdarg_T *cap));
160 static void	nv_join __ARGS((cmdarg_T *cap));
161 static void	nv_put __ARGS((cmdarg_T *cap));
162 static void	nv_open __ARGS((cmdarg_T *cap));
163 #ifdef FEAT_SNIFF
164 static void	nv_sniff __ARGS((cmdarg_T *cap));
165 #endif
166 #ifdef FEAT_NETBEANS_INTG
167 static void	nv_nbcmd __ARGS((cmdarg_T *cap));
168 #endif
169 #ifdef FEAT_DND
170 static void	nv_drop __ARGS((cmdarg_T *cap));
171 #endif
172 #ifdef FEAT_AUTOCMD
173 static void	nv_cursorhold __ARGS((cmdarg_T *cap));
174 #endif
175 
176 /*
177  * Function to be called for a Normal or Visual mode command.
178  * The argument is a cmdarg_T.
179  */
180 typedef void (*nv_func_T) __ARGS((cmdarg_T *cap));
181 
182 /* Values for cmd_flags. */
183 #define NV_NCH	    0x01	  /* may need to get a second char */
184 #define NV_NCH_NOP  (0x02|NV_NCH) /* get second char when no operator pending */
185 #define NV_NCH_ALW  (0x04|NV_NCH) /* always get a second char */
186 #define NV_LANG	    0x08	/* second char needs language adjustment */
187 
188 #define NV_SS	    0x10	/* may start selection */
189 #define NV_SSS	    0x20	/* may start selection with shift modifier */
190 #define NV_STS	    0x40	/* may stop selection without shift modif. */
191 #define NV_RL	    0x80	/* 'rightleft' modifies command */
192 #define NV_KEEPREG  0x100	/* don't clear regname */
193 #define NV_NCW	    0x200	/* not allowed in command-line window */
194 
195 /*
196  * Generally speaking, every Normal mode command should either clear any
197  * pending operator (with *clearop*()), or set the motion type variable
198  * oap->motion_type.
199  *
200  * When a cursor motion command is made, it is marked as being a character or
201  * line oriented motion.  Then, if an operator is in effect, the operation
202  * becomes character or line oriented accordingly.
203  */
204 
205 /*
206  * This table contains one entry for every Normal or Visual mode command.
207  * The order doesn't matter, init_normal_cmds() will create a sorted index.
208  * It is faster when all keys from zero to '~' are present.
209  */
210 static const struct nv_cmd
211 {
212     int		cmd_char;	/* (first) command character */
213     nv_func_T   cmd_func;	/* function for this command */
214     short_u	cmd_flags;	/* NV_ flags */
215     short	cmd_arg;	/* value for ca.arg */
216 } nv_cmds[] =
217 {
218     {NUL,	nv_error,	0,			0},
219     {Ctrl_A,	nv_addsub,	0,			0},
220     {Ctrl_B,	nv_page,	NV_STS,			BACKWARD},
221     {Ctrl_C,	nv_esc,		0,			TRUE},
222     {Ctrl_D,	nv_halfpage,	0,			0},
223     {Ctrl_E,	nv_scroll_line,	0,			TRUE},
224     {Ctrl_F,	nv_page,	NV_STS,			FORWARD},
225     {Ctrl_G,	nv_ctrlg,	0,			0},
226     {Ctrl_H,	nv_ctrlh,	0,			0},
227     {Ctrl_I,	nv_pcmark,	0,			0},
228     {NL,	nv_down,	0,			FALSE},
229     {Ctrl_K,	nv_error,	0,			0},
230     {Ctrl_L,	nv_clear,	0,			0},
231     {Ctrl_M,	nv_down,	0,			TRUE},
232     {Ctrl_N,	nv_down,	NV_STS,			FALSE},
233     {Ctrl_O,	nv_ctrlo,	0,			0},
234     {Ctrl_P,	nv_up,		NV_STS,			FALSE},
235 #ifdef FEAT_VISUAL
236     {Ctrl_Q,	nv_visual,	0,			FALSE},
237 #else
238     {Ctrl_Q,	nv_ignore,	0,			0},
239 #endif
240     {Ctrl_R,	nv_redo,	0,			0},
241     {Ctrl_S,	nv_ignore,	0,			0},
242     {Ctrl_T,	nv_tagpop,	NV_NCW,			0},
243     {Ctrl_U,	nv_halfpage,	0,			0},
244 #ifdef FEAT_VISUAL
245     {Ctrl_V,	nv_visual,	0,			FALSE},
246     {'V',	nv_visual,	0,			FALSE},
247     {'v',	nv_visual,	0,			FALSE},
248 #else
249     {Ctrl_V,	nv_error,	0,			0},
250     {'V',	nv_error,	0,			0},
251     {'v',	nv_error,	0,			0},
252 #endif
253     {Ctrl_W,	nv_window,	0,			0},
254     {Ctrl_X,	nv_addsub,	0,			0},
255     {Ctrl_Y,	nv_scroll_line,	0,			FALSE},
256     {Ctrl_Z,	nv_suspend,	0,			0},
257     {ESC,	nv_esc,		0,			FALSE},
258     {Ctrl_BSL,	nv_normal,	NV_NCH_ALW,		0},
259     {Ctrl_RSB,	nv_ident,	NV_NCW,			0},
260     {Ctrl_HAT,	nv_hat,		NV_NCW,			0},
261     {Ctrl__,	nv_error,	0,			0},
262     {' ',	nv_right,	0,			0},
263     {'!',	nv_operator,	0,			0},
264     {'"',	nv_regname,	NV_NCH_NOP|NV_KEEPREG,	0},
265     {'#',	nv_ident,	0,			0},
266     {'$',	nv_dollar,	0,			0},
267     {'%',	nv_percent,	0,			0},
268     {'&',	nv_optrans,	0,			0},
269     {'\'',	nv_gomark,	NV_NCH_ALW,		TRUE},
270     {'(',	nv_brace,	0,			BACKWARD},
271     {')',	nv_brace,	0,			FORWARD},
272     {'*',	nv_ident,	0,			0},
273     {'+',	nv_down,	0,			TRUE},
274     {',',	nv_csearch,	0,			TRUE},
275     {'-',	nv_up,		0,			TRUE},
276     {'.',	nv_dot,		NV_KEEPREG,		0},
277     {'/',	nv_search,	0,			FALSE},
278     {'0',	nv_beginline,	0,			0},
279     {'1',	nv_ignore,	0,			0},
280     {'2',	nv_ignore,	0,			0},
281     {'3',	nv_ignore,	0,			0},
282     {'4',	nv_ignore,	0,			0},
283     {'5',	nv_ignore,	0,			0},
284     {'6',	nv_ignore,	0,			0},
285     {'7',	nv_ignore,	0,			0},
286     {'8',	nv_ignore,	0,			0},
287     {'9',	nv_ignore,	0,			0},
288     {':',	nv_colon,	0,			0},
289     {';',	nv_csearch,	0,			FALSE},
290     {'<',	nv_operator,	NV_RL,			0},
291     {'=',	nv_operator,	0,			0},
292     {'>',	nv_operator,	NV_RL,			0},
293     {'?',	nv_search,	0,			FALSE},
294     {'@',	nv_at,		NV_NCH_NOP,		FALSE},
295     {'A',	nv_edit,	0,			0},
296     {'B',	nv_bck_word,	0,			1},
297     {'C',	nv_abbrev,	NV_KEEPREG,		0},
298     {'D',	nv_abbrev,	NV_KEEPREG,		0},
299     {'E',	nv_wordcmd,	0,			TRUE},
300     {'F',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
301     {'G',	nv_goto,	0,			TRUE},
302     {'H',	nv_scroll,	0,			0},
303     {'I',	nv_edit,	0,			0},
304     {'J',	nv_join,	0,			0},
305     {'K',	nv_ident,	0,			0},
306     {'L',	nv_scroll,	0,			0},
307     {'M',	nv_scroll,	0,			0},
308     {'N',	nv_next,	0,			SEARCH_REV},
309     {'O',	nv_open,	0,			0},
310     {'P',	nv_put,		0,			0},
311     {'Q',	nv_exmode,	NV_NCW,			0},
312     {'R',	nv_Replace,	0,			FALSE},
313     {'S',	nv_subst,	NV_KEEPREG,		0},
314     {'T',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
315     {'U',	nv_Undo,	0,			0},
316     {'W',	nv_wordcmd,	0,			TRUE},
317     {'X',	nv_abbrev,	NV_KEEPREG,		0},
318     {'Y',	nv_abbrev,	NV_KEEPREG,		0},
319     {'Z',	nv_Zet,		NV_NCH_NOP|NV_NCW,	0},
320     {'[',	nv_brackets,	NV_NCH_ALW,		BACKWARD},
321     {'\\',	nv_error,	0,			0},
322     {']',	nv_brackets,	NV_NCH_ALW,		FORWARD},
323     {'^',	nv_beginline,	0,			BL_WHITE | BL_FIX},
324     {'_',	nv_lineop,	0,			0},
325     {'`',	nv_gomark,	NV_NCH_ALW,		FALSE},
326     {'a',	nv_edit,	NV_NCH,			0},
327     {'b',	nv_bck_word,	0,			0},
328     {'c',	nv_operator,	0,			0},
329     {'d',	nv_operator,	0,			0},
330     {'e',	nv_wordcmd,	0,			FALSE},
331     {'f',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
332     {'g',	nv_g_cmd,	NV_NCH_ALW,		FALSE},
333     {'h',	nv_left,	NV_RL,			0},
334     {'i',	nv_edit,	NV_NCH,			0},
335     {'j',	nv_down,	0,			FALSE},
336     {'k',	nv_up,		0,			FALSE},
337     {'l',	nv_right,	NV_RL,			0},
338     {'m',	nv_mark,	NV_NCH_NOP,		0},
339     {'n',	nv_next,	0,			0},
340     {'o',	nv_open,	0,			0},
341     {'p',	nv_put,		0,			0},
342     {'q',	nv_record,	NV_NCH,			0},
343     {'r',	nv_replace,	NV_NCH_NOP|NV_LANG,	0},
344     {'s',	nv_subst,	NV_KEEPREG,		0},
345     {'t',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
346     {'u',	nv_undo,	0,			0},
347     {'w',	nv_wordcmd,	0,			FALSE},
348     {'x',	nv_abbrev,	NV_KEEPREG,		0},
349     {'y',	nv_operator,	0,			0},
350     {'z',	nv_zet,		NV_NCH_ALW,		0},
351     {'{',	nv_findpar,	0,			BACKWARD},
352     {'|',	nv_pipe,	0,			0},
353     {'}',	nv_findpar,	0,			FORWARD},
354     {'~',	nv_tilde,	0,			0},
355 
356     /* pound sign */
357     {POUND,	nv_ident,	0,			0},
358 #ifdef FEAT_MOUSE
359     {K_MOUSEUP, nv_mousescroll,	0,			TRUE},
360     {K_MOUSEDOWN, nv_mousescroll, 0,			FALSE},
361     {K_LEFTMOUSE, nv_mouse,	0,			0},
362     {K_LEFTMOUSE_NM, nv_mouse,	0,			0},
363     {K_LEFTDRAG, nv_mouse,	0,			0},
364     {K_LEFTRELEASE, nv_mouse,	0,			0},
365     {K_LEFTRELEASE_NM, nv_mouse, 0,			0},
366     {K_MIDDLEMOUSE, nv_mouse,	0,			0},
367     {K_MIDDLEDRAG, nv_mouse,	0,			0},
368     {K_MIDDLERELEASE, nv_mouse,	0,			0},
369     {K_RIGHTMOUSE, nv_mouse,	0,			0},
370     {K_RIGHTDRAG, nv_mouse,	0,			0},
371     {K_RIGHTRELEASE, nv_mouse,	0,			0},
372     {K_X1MOUSE, nv_mouse,	0,			0},
373     {K_X1DRAG, nv_mouse,	0,			0},
374     {K_X1RELEASE, nv_mouse,	0,			0},
375     {K_X2MOUSE, nv_mouse,	0,			0},
376     {K_X2DRAG, nv_mouse,	0,			0},
377     {K_X2RELEASE, nv_mouse,	0,			0},
378 #endif
379     {K_IGNORE,	nv_ignore,	0,			0},
380     {K_INS,	nv_edit,	0,			0},
381     {K_KINS,	nv_edit,	0,			0},
382     {K_BS,	nv_ctrlh,	0,			0},
383     {K_UP,	nv_up,		NV_SSS|NV_STS,		FALSE},
384     {K_S_UP,	nv_page,	NV_SS,			BACKWARD},
385     {K_DOWN,	nv_down,	NV_SSS|NV_STS,		FALSE},
386     {K_S_DOWN,	nv_page,	NV_SS,			FORWARD},
387     {K_LEFT,	nv_left,	NV_SSS|NV_STS|NV_RL,	0},
388     {K_S_LEFT,	nv_bck_word,	NV_SS|NV_RL,		0},
389     {K_C_LEFT,	nv_bck_word,	NV_SSS|NV_RL|NV_STS,	1},
390     {K_RIGHT,	nv_right,	NV_SSS|NV_STS|NV_RL,	0},
391     {K_S_RIGHT,	nv_wordcmd,	NV_SS|NV_RL,		FALSE},
392     {K_C_RIGHT,	nv_wordcmd,	NV_SSS|NV_RL|NV_STS,	TRUE},
393     {K_PAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
394     {K_KPAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
395     {K_PAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
396     {K_KPAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
397     {K_END,	nv_end,		NV_SSS|NV_STS,		FALSE},
398     {K_KEND,	nv_end,		NV_SSS|NV_STS,		FALSE},
399     {K_S_END,	nv_end,		NV_SS,			FALSE},
400     {K_C_END,	nv_end,		NV_SSS|NV_STS,		TRUE},
401     {K_HOME,	nv_home,	NV_SSS|NV_STS,		0},
402     {K_KHOME,	nv_home,	NV_SSS|NV_STS,		0},
403     {K_S_HOME,	nv_home,	NV_SS,			0},
404     {K_C_HOME,	nv_goto,	NV_SSS|NV_STS,		FALSE},
405     {K_DEL,	nv_abbrev,	0,			0},
406     {K_KDEL,	nv_abbrev,	0,			0},
407     {K_UNDO,	nv_kundo,	0,			0},
408     {K_HELP,	nv_help,	NV_NCW,			0},
409     {K_F1,	nv_help,	NV_NCW,			0},
410     {K_XF1,	nv_help,	NV_NCW,			0},
411 #ifdef FEAT_VISUAL
412     {K_SELECT,	nv_select,	0,			0},
413 #endif
414 #ifdef FEAT_GUI
415     {K_VER_SCROLLBAR, nv_ver_scrollbar, 0,		0},
416     {K_HOR_SCROLLBAR, nv_hor_scrollbar, 0,		0},
417 #endif
418 #ifdef FEAT_FKMAP
419     {K_F8,	farsi_fkey,	0,			0},
420     {K_F9,	farsi_fkey,	0,			0},
421 #endif
422 #ifdef FEAT_SNIFF
423     {K_SNIFF,	nv_sniff,	0,			0},
424 #endif
425 #ifdef FEAT_NETBEANS_INTG
426     {K_F21,	nv_nbcmd,	NV_NCH_ALW,		0},
427 #endif
428 #ifdef FEAT_DND
429     {K_DROP,	nv_drop,	NV_STS,			0},
430 #endif
431 #ifdef FEAT_AUTOCMD
432     {K_CURSORHOLD, nv_cursorhold, 0,			0},
433 #endif
434 };
435 
436 /* Number of commands in nv_cmds[]. */
437 #define NV_CMDS_SIZE (sizeof(nv_cmds) / sizeof(struct nv_cmd))
438 
439 /* Sorted index of commands in nv_cmds[]. */
440 static short nv_cmd_idx[NV_CMDS_SIZE];
441 
442 /* The highest index for which
443  * nv_cmds[idx].cmd_char == nv_cmd_idx[nv_cmds[idx].cmd_char] */
444 static int nv_max_linear;
445 
446 /*
447  * Compare functions for qsort() below, that checks the command character
448  * through the index in nv_cmd_idx[].
449  */
450     static int
451 #ifdef __BORLANDC__
452 _RTLENTRYF
453 #endif
454 nv_compare(s1, s2)
455     const void	*s1;
456     const void	*s2;
457 {
458     int		c1, c2;
459 
460     /* The commands are sorted on absolute value. */
461     c1 = nv_cmds[*(const short *)s1].cmd_char;
462     c2 = nv_cmds[*(const short *)s2].cmd_char;
463     if (c1 < 0)
464 	c1 = -c1;
465     if (c2 < 0)
466 	c2 = -c2;
467     return c1 - c2;
468 }
469 
470 /*
471  * Initialize the nv_cmd_idx[] table.
472  */
473     void
474 init_normal_cmds()
475 {
476     int		i;
477 
478     /* Fill the index table with a one to one relation. */
479     for (i = 0; i < NV_CMDS_SIZE; ++i)
480 	nv_cmd_idx[i] = i;
481 
482     /* Sort the commands by the command character.  */
483     qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);
484 
485     /* Find the first entry that can't be indexed by the command character. */
486     for (i = 0; i < NV_CMDS_SIZE; ++i)
487 	if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
488 	    break;
489     nv_max_linear = i - 1;
490 }
491 
492 /*
493  * Search for a command in the commands table.
494  * Returns -1 for invalid command.
495  */
496     static int
497 find_command(cmdchar)
498     int		cmdchar;
499 {
500     int		i;
501     int		idx;
502     int		top, bot;
503     int		c;
504 
505 #ifdef FEAT_MBYTE
506     /* A multi-byte character is never a command. */
507     if (cmdchar >= 0x100)
508 	return -1;
509 #endif
510 
511     /* We use the absolute value of the character.  Special keys have a
512      * negative value, but are sorted on their absolute value. */
513     if (cmdchar < 0)
514 	cmdchar = -cmdchar;
515 
516     /* If the character is in the first part: The character is the index into
517      * nv_cmd_idx[]. */
518     if (cmdchar <= nv_max_linear)
519 	return nv_cmd_idx[cmdchar];
520 
521     /* Perform a binary search. */
522     bot = nv_max_linear + 1;
523     top = NV_CMDS_SIZE - 1;
524     idx = -1;
525     while (bot <= top)
526     {
527 	i = (top + bot) / 2;
528 	c = nv_cmds[nv_cmd_idx[i]].cmd_char;
529 	if (c < 0)
530 	    c = -c;
531 	if (cmdchar == c)
532 	{
533 	    idx = nv_cmd_idx[i];
534 	    break;
535 	}
536 	if (cmdchar > c)
537 	    bot = i + 1;
538 	else
539 	    top = i - 1;
540     }
541     return idx;
542 }
543 
544 /*
545  * Execute a command in Normal mode.
546  */
547 /*ARGSUSED*/
548     void
549 normal_cmd(oap, toplevel)
550     oparg_T	*oap;
551     int		toplevel;		/* TRUE when called from main() */
552 {
553     static long	opcount = 0;		/* ca.opcount saved here */
554     cmdarg_T	ca;			/* command arguments */
555     int		c;
556     int		ctrl_w = FALSE;		/* got CTRL-W command */
557     int		old_col = curwin->w_curswant;
558 #ifdef FEAT_CMDL_INFO
559     int		need_flushbuf;		/* need to call out_flush() */
560 #endif
561 #ifdef FEAT_VISUAL
562     pos_T	old_pos;		/* cursor position before command */
563     int		mapped_len;
564 #endif
565     static int	old_mapped_len = 0;
566     int		idx;
567 
568     vim_memset(&ca, 0, sizeof(ca));	/* also resets ca.retval */
569     ca.oap = oap;
570     ca.opcount = opcount;
571 
572 #ifdef FEAT_SNIFF
573     want_sniff_request = sniff_connected;
574 #endif
575 
576     /*
577      * If there is an operator pending, then the command we take this time
578      * will terminate it. Finish_op tells us to finish the operation before
579      * returning this time (unless the operation was cancelled).
580      */
581 #ifdef CURSOR_SHAPE
582     c = finish_op;
583 #endif
584     finish_op = (oap->op_type != OP_NOP);
585 #ifdef CURSOR_SHAPE
586     if (finish_op != c)
587     {
588 	ui_cursor_shape();		/* may show different cursor shape */
589 # ifdef FEAT_MOUSESHAPE
590 	update_mouseshape(-1);
591 # endif
592     }
593 #endif
594 
595     if (!finish_op && !oap->regname)
596 	ca.opcount = 0;
597 
598 #ifdef FEAT_VISUAL
599     mapped_len = typebuf_maplen();
600 #endif
601 
602     State = NORMAL_BUSY;
603 #ifdef USE_ON_FLY_SCROLL
604     dont_scroll = FALSE;	/* allow scrolling here */
605 #endif
606 
607     /*
608      * Get the command character from the user.
609      */
610     c = safe_vgetc();
611 
612 #ifdef FEAT_LANGMAP
613     LANGMAP_ADJUST(c, TRUE);
614 #endif
615 
616     /*
617      * If a mapping was started in Visual or Select mode, remember the length
618      * of the mapping.  This is used below to not return to Insert mode for as
619      * long as the mapping is being executed.
620      */
621     if (restart_edit == 0)
622 	old_mapped_len = 0;
623     else if (old_mapped_len
624 #ifdef FEAT_VISUAL
625 	    || (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0)
626 #endif
627 	    )
628 	old_mapped_len = typebuf_maplen();
629 
630     if (c == NUL)
631 	c = K_ZERO;
632 
633 #ifdef FEAT_VISUAL
634     /*
635      * In Select mode, typed text replaces the selection.
636      */
637     if (VIsual_active
638 	    && VIsual_select
639 	    && (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
640     {
641 # ifdef FEAT_MBYTE
642 	char_u	    buf[MB_MAXBYTES + 1];
643 
644 	buf[(*mb_char2bytes)(c, buf)] = NUL;
645 # else
646 	char_u	    buf[2];
647 
648 	buf[0] = c;
649 	buf[1] = NUL;
650 # endif
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 will
655 	 * be mapped in Insert mode.  Required for ":lmap" to work.  May cause
656 	 * mapping a character from ":vnoremap"... */
657 	(void)ins_typebuf(buf, REMAP_YES, 0, !KeyTyped, FALSE);
658 	if (restart_edit != 0)
659 	    c = 'd';
660 	else
661 	    c = 'c';
662     }
663 #endif
664 
665 #ifdef FEAT_CMDL_INFO
666     need_flushbuf = add_to_showcmd(c);
667 #endif
668 
669 getcount:
670 #ifdef FEAT_VISUAL
671     if (!(VIsual_active && VIsual_select))
672 #endif
673     {
674 	/*
675 	 * Handle a count before a command and compute ca.count0.
676 	 * Note that '0' is a command and not the start of a count, but it's
677 	 * part of a count after other digits.
678 	 */
679 	while (    (c >= '1' && c <= '9')
680 		|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
681 	{
682 	    if (c == K_DEL || c == K_KDEL)
683 	    {
684 		ca.count0 /= 10;
685 #ifdef FEAT_CMDL_INFO
686 		del_from_showcmd(4);	/* delete the digit and ~@% */
687 #endif
688 	    }
689 	    else
690 		ca.count0 = ca.count0 * 10 + (c - '0');
691 	    if (ca.count0 < 0)	    /* got too large! */
692 		ca.count0 = 999999999L;
693 	    if (ctrl_w)
694 	    {
695 		++no_mapping;
696 		++allow_keys;		/* no mapping for nchar, but keys */
697 	    }
698 	    ++no_zero_mapping;		/* don't map zero here */
699 	    c = safe_vgetc();
700 #ifdef FEAT_LANGMAP
701 	    LANGMAP_ADJUST(c, TRUE);
702 #endif
703 	    --no_zero_mapping;
704 	    if (ctrl_w)
705 	    {
706 		--no_mapping;
707 		--allow_keys;
708 	    }
709 #ifdef FEAT_CMDL_INFO
710 	    need_flushbuf |= add_to_showcmd(c);
711 #endif
712 	}
713 
714 	/*
715 	 * If we got CTRL-W there may be a/another count
716 	 */
717 	if (c == Ctrl_W && !ctrl_w && oap->op_type == OP_NOP)
718 	{
719 	    ctrl_w = TRUE;
720 	    ca.opcount = ca.count0;	/* remember first count */
721 	    ca.count0 = 0;
722 	    ++no_mapping;
723 	    ++allow_keys;		/* no mapping for nchar, but keys */
724 	    c = safe_vgetc();		/* get next character */
725 #ifdef FEAT_LANGMAP
726 	    LANGMAP_ADJUST(c, TRUE);
727 #endif
728 	    --no_mapping;
729 	    --allow_keys;
730 #ifdef FEAT_CMDL_INFO
731 	    need_flushbuf |= add_to_showcmd(c);
732 #endif
733 	    goto getcount;		/* jump back */
734 	}
735     }
736 
737     /*
738      * If we're in the middle of an operator (including after entering a yank
739      * buffer with '"') AND we had a count before the operator, then that
740      * count overrides the current value of ca.count0.
741      * What this means effectively, is that commands like "3dw" get turned
742      * into "d3w" which makes things fall into place pretty neatly.
743      * If you give a count before AND after the operator, they are multiplied.
744      */
745     if (ca.opcount != 0)
746     {
747 	if (ca.count0)
748 	    ca.count0 *= ca.opcount;
749 	else
750 	    ca.count0 = ca.opcount;
751     }
752 
753     /*
754      * Always remember the count.  It will be set to zero (on the next call,
755      * above) when there is no pending operator.
756      * When called from main(), save the count for use by the "count" built-in
757      * variable.
758      */
759     ca.opcount = ca.count0;
760     ca.count1 = (ca.count0 == 0 ? 1 : ca.count0);
761 
762 #ifdef FEAT_EVAL
763     /*
764      * Only set v:count when called from main() and not a stuffed command.
765      */
766     if (toplevel && stuff_empty())
767 	set_vcount(ca.count0, ca.count1);
768 #endif
769 
770     /*
771      * Find the command character in the table of commands.
772      * For CTRL-W we already got nchar when looking for a count.
773      */
774     if (ctrl_w)
775     {
776 	ca.nchar = c;
777 	ca.cmdchar = Ctrl_W;
778     }
779     else
780 	ca.cmdchar = c;
781     idx = find_command(ca.cmdchar);
782     if (idx < 0)
783     {
784 	/* Not a known command: beep. */
785 	clearopbeep(oap);
786 	goto normal_end;
787     }
788 #ifdef FEAT_CMDWIN
789     if (cmdwin_type != 0 && (nv_cmds[idx].cmd_flags & NV_NCW))
790     {
791 	/* This command is not allowed in the cmdline window: beep. */
792 	clearopbeep(oap);
793 	EMSG(_(e_cmdwin));
794 	goto normal_end;
795     }
796 #endif
797 
798 #ifdef FEAT_VISUAL
799     /*
800      * In Visual/Select mode, a few keys are handled in a special way.
801      */
802     if (VIsual_active)
803     {
804 	/* when 'keymodel' contains "stopsel" may stop Select/Visual mode */
805 	if (km_stopsel
806 		&& (nv_cmds[idx].cmd_flags & NV_STS)
807 		&& !(mod_mask & MOD_MASK_SHIFT))
808 	{
809 	    end_visual_mode();
810 	    redraw_curbuf_later(INVERTED);
811 	}
812 
813 	/* Keys that work different when 'keymodel' contains "startsel" */
814 	if (km_startsel)
815 	{
816 	    if (nv_cmds[idx].cmd_flags & NV_SS)
817 	    {
818 		unshift_special(&ca);
819 		idx = find_command(ca.cmdchar);
820 	    }
821 	    else if ((nv_cmds[idx].cmd_flags & NV_SSS)
822 					       && (mod_mask & MOD_MASK_SHIFT))
823 	    {
824 		mod_mask &= ~MOD_MASK_SHIFT;
825 	    }
826 	}
827     }
828 #endif
829 
830 #ifdef FEAT_RIGHTLEFT
831     if (curwin->w_p_rl && KeyTyped && !KeyStuffed
832 					  && (nv_cmds[idx].cmd_flags & NV_RL))
833     {
834 	/* Invert horizontal movements and operations.  Only when typed by the
835 	 * user directly, not when the result of a mapping or "x" translated
836 	 * to "dl". */
837 	switch (ca.cmdchar)
838 	{
839 	    case 'l':	    ca.cmdchar = 'h'; break;
840 	    case K_RIGHT:   ca.cmdchar = K_LEFT; break;
841 	    case K_S_RIGHT: ca.cmdchar = K_S_LEFT; break;
842 	    case K_C_RIGHT: ca.cmdchar = K_C_LEFT; break;
843 	    case 'h':	    ca.cmdchar = 'l'; break;
844 	    case K_LEFT:    ca.cmdchar = K_RIGHT; break;
845 	    case K_S_LEFT:  ca.cmdchar = K_S_RIGHT; break;
846 	    case K_C_LEFT:  ca.cmdchar = K_C_RIGHT; break;
847 	    case '>':	    ca.cmdchar = '<'; break;
848 	    case '<':	    ca.cmdchar = '>'; break;
849 	}
850 	idx = find_command(ca.cmdchar);
851     }
852 #endif
853 
854     /*
855      * Get an additional character if we need one.
856      */
857     if ((nv_cmds[idx].cmd_flags & NV_NCH)
858 	    && (((nv_cmds[idx].cmd_flags & NV_NCH_NOP) == NV_NCH_NOP
859 		    && oap->op_type == OP_NOP)
860 		|| (nv_cmds[idx].cmd_flags & NV_NCH_ALW) == NV_NCH_ALW
861 		|| (ca.cmdchar == 'q'
862 		    && oap->op_type == OP_NOP
863 		    && !Recording
864 		    && !Exec_reg)
865 		|| ((ca.cmdchar == 'a' || ca.cmdchar == 'i')
866 		    && (oap->op_type != OP_NOP
867 #ifdef FEAT_VISUAL
868 			|| VIsual_active
869 #endif
870 		       ))))
871     {
872 	int	*cp;
873 	int	repl = FALSE;	/* get character for replace mode */
874 	int	lit = FALSE;	/* get extra character literally */
875 	int	langmap_active = FALSE;    /* using :lmap mappings */
876 	int	lang;		/* getting a text character */
877 #ifdef USE_IM_CONTROL
878 	int	save_smd;	/* saved value of p_smd */
879 #endif
880 
881 	++no_mapping;
882 	++allow_keys;		/* no mapping for nchar, but allow key codes */
883 	if (ca.cmdchar == 'g')
884 	{
885 	    /*
886 	     * For 'g' get the next character now, so that we can check for
887 	     * "gr", "g'" and "g`".
888 	     */
889 	    ca.nchar = safe_vgetc();
890 #ifdef FEAT_LANGMAP
891 	    LANGMAP_ADJUST(ca.nchar, TRUE);
892 #endif
893 #ifdef FEAT_CMDL_INFO
894 	    need_flushbuf |= add_to_showcmd(ca.nchar);
895 #endif
896 	    if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
897 						      || ca.nchar == Ctrl_BSL)
898 	    {
899 		cp = &ca.extra_char;	/* need to get a third character */
900 		if (ca.nchar != 'r')
901 		    lit = TRUE;			/* get it literally */
902 		else
903 		    repl = TRUE;		/* get it in replace mode */
904 	    }
905 	    else
906 		cp = NULL;		/* no third character needed */
907 	}
908 	else
909 	{
910 	    if (ca.cmdchar == 'r')		/* get it in replace mode */
911 		repl = TRUE;
912 	    cp = &ca.nchar;
913 	}
914 	lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));
915 
916 	/*
917 	 * Get a second or third character.
918 	 */
919 	if (cp != NULL)
920 	{
921 #ifdef CURSOR_SHAPE
922 	    if (repl)
923 	    {
924 		State = REPLACE;	/* pretend Replace mode */
925 		ui_cursor_shape();	/* show different cursor shape */
926 	    }
927 #endif
928 	    if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
929 	    {
930 		/* Allow mappings defined with ":lmap". */
931 		--no_mapping;
932 		--allow_keys;
933 		if (repl)
934 		    State = LREPLACE;
935 		else
936 		    State = LANGMAP;
937 		langmap_active = TRUE;
938 	    }
939 #ifdef USE_IM_CONTROL
940 	    save_smd = p_smd;
941 	    p_smd = FALSE;	/* Don't let the IM code show the mode here */
942 	    if (lang && curbuf->b_p_iminsert == B_IMODE_IM)
943 		im_set_active(TRUE);
944 #endif
945 
946 	    *cp = safe_vgetc();
947 
948 	    if (langmap_active)
949 	    {
950 		/* Undo the decrement done above */
951 		++no_mapping;
952 		++allow_keys;
953 		State = NORMAL_BUSY;
954 	    }
955 #ifdef USE_IM_CONTROL
956 	    if (lang)
957 	    {
958 		if (curbuf->b_p_iminsert != B_IMODE_LMAP)
959 		    im_save_status(&curbuf->b_p_iminsert);
960 		im_set_active(FALSE);
961 	    }
962 	    p_smd = save_smd;
963 #endif
964 #ifdef CURSOR_SHAPE
965 	    State = NORMAL_BUSY;
966 #endif
967 #ifdef FEAT_CMDL_INFO
968 	    need_flushbuf |= add_to_showcmd(*cp);
969 #endif
970 
971 	    if (!lit)
972 	    {
973 #ifdef FEAT_DIGRAPHS
974 		/* Typing CTRL-K gets a digraph. */
975 		if (*cp == Ctrl_K
976 			&& ((nv_cmds[idx].cmd_flags & NV_LANG)
977 			    || cp == &ca.extra_char)
978 			&& vim_strchr(p_cpo, CPO_DIGRAPH) == NULL)
979 		{
980 		    c = get_digraph(FALSE);
981 		    if (c > 0)
982 		    {
983 			*cp = c;
984 # ifdef FEAT_CMDL_INFO
985 			/* Guessing how to update showcmd here... */
986 			del_from_showcmd(3);
987 			need_flushbuf |= add_to_showcmd(*cp);
988 # endif
989 		    }
990 		}
991 #endif
992 
993 #ifdef FEAT_LANGMAP
994 		/* adjust chars > 127, except after "tTfFr" commands */
995 		LANGMAP_ADJUST(*cp, !lang);
996 #endif
997 #ifdef FEAT_RIGHTLEFT
998 		/* adjust Hebrew mapped char */
999 		if (p_hkmap && lang && KeyTyped)
1000 		    *cp = hkmap(*cp);
1001 # ifdef FEAT_FKMAP
1002 		/* adjust Farsi mapped char */
1003 		if (p_fkmap && lang && KeyTyped)
1004 		    *cp = fkmap(*cp);
1005 # endif
1006 #endif
1007 	    }
1008 
1009 	    /*
1010 	     * When the next character is CTRL-\ a following CTRL-N means the
1011 	     * command is aborted and we go to Normal mode.
1012 	     */
1013 	    if (cp == &ca.extra_char
1014 		    && ca.nchar == Ctrl_BSL
1015 		    && (ca.extra_char == Ctrl_N || ca.extra_char == Ctrl_G))
1016 	    {
1017 		ca.cmdchar = Ctrl_BSL;
1018 		ca.nchar = ca.extra_char;
1019 		idx = find_command(ca.cmdchar);
1020 	    }
1021 	    else if (*cp == Ctrl_BSL)
1022 	    {
1023 		long towait = (p_ttm >= 0 ? p_ttm : p_tm);
1024 
1025 		/* There is a busy wait here when typing "f<C-\>" and then
1026 		 * something different from CTRL-N.  Can't be avoided. */
1027 		while ((c = vpeekc()) <= 0 && towait > 0L)
1028 		{
1029 		    do_sleep(towait > 50L ? 50L : towait);
1030 		    towait -= 50L;
1031 		}
1032 		if (c > 0)
1033 		{
1034 		    c = safe_vgetc();
1035 		    if (c != Ctrl_N && c != Ctrl_G)
1036 			vungetc(c);
1037 		    else
1038 		    {
1039 			ca.cmdchar = Ctrl_BSL;
1040 			ca.nchar = c;
1041 			idx = find_command(ca.cmdchar);
1042 		    }
1043 		}
1044 	    }
1045 
1046 #ifdef FEAT_MBYTE
1047 	    /* When getting a text character and the next character is a
1048 	     * multi-byte character, it could be a composing character.
1049 	     * However, don't wait for it to arrive. */
1050 	    while (enc_utf8 && lang && (c = vpeekc()) > 0
1051 				 && (c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1))
1052 	    {
1053 		c = safe_vgetc();
1054 		if (!utf_iscomposing(c))
1055 		{
1056 		    vungetc(c);		/* it wasn't, put it back */
1057 		    break;
1058 		}
1059 		else if (ca.ncharC1 == 0)
1060 		    ca.ncharC1 = c;
1061 		else
1062 		    ca.ncharC2 = c;
1063 	    }
1064 #endif
1065 	}
1066 	--no_mapping;
1067 	--allow_keys;
1068     }
1069 
1070 #ifdef FEAT_CMDL_INFO
1071     /*
1072      * Flush the showcmd characters onto the screen so we can see them while
1073      * the command is being executed.  Only do this when the shown command was
1074      * actually displayed, otherwise this will slow down a lot when executing
1075      * mappings.
1076      */
1077     if (need_flushbuf)
1078 	out_flush();
1079 #endif
1080 #ifdef FEAT_AUTOCMD
1081     did_cursorhold = FALSE;
1082 #endif
1083 
1084     State = NORMAL;
1085 
1086     if (ca.nchar == ESC)
1087     {
1088 	clearop(oap);
1089 	if (restart_edit == 0 && goto_im())
1090 	    restart_edit = 'a';
1091 	goto normal_end;
1092     }
1093 
1094     if (ca.cmdchar != K_IGNORE)
1095     {
1096 	msg_didout = FALSE;    /* don't scroll screen up for normal command */
1097 	msg_col = 0;
1098     }
1099 
1100 #ifdef FEAT_VISUAL
1101     old_pos = curwin->w_cursor;		/* remember where cursor was */
1102 
1103     /* When 'keymodel' contains "startsel" some keys start Select/Visual
1104      * mode. */
1105     if (!VIsual_active && km_startsel)
1106     {
1107 	if (nv_cmds[idx].cmd_flags & NV_SS)
1108 	{
1109 	    start_selection();
1110 	    unshift_special(&ca);
1111 	    idx = find_command(ca.cmdchar);
1112 	}
1113 	else if ((nv_cmds[idx].cmd_flags & NV_SSS)
1114 					   && (mod_mask & MOD_MASK_SHIFT))
1115 	{
1116 	    start_selection();
1117 	    mod_mask &= ~MOD_MASK_SHIFT;
1118 	}
1119     }
1120 #endif
1121 
1122     /*
1123      * Execute the command!
1124      * Call the command function found in the commands table.
1125      */
1126     ca.arg = nv_cmds[idx].cmd_arg;
1127     (nv_cmds[idx].cmd_func)(&ca);
1128 
1129     /*
1130      * If we didn't start or finish an operator, reset oap->regname, unless we
1131      * need it later.
1132      */
1133     if (!finish_op
1134 	    && !oap->op_type
1135 	    && (idx < 0 || !(nv_cmds[idx].cmd_flags & NV_KEEPREG)))
1136     {
1137 	clearop(oap);
1138 #ifdef FEAT_EVAL
1139 	set_reg_var('"');
1140 #endif
1141     }
1142 
1143     /* get the length of mapped chars again after typing a count, second
1144      * character or "z333<cr>". */
1145     if (old_mapped_len > 0)
1146 	old_mapped_len = typebuf_maplen();
1147 
1148     /*
1149      * If an operation is pending, handle it...
1150      */
1151     do_pending_operator(&ca, old_col, FALSE);
1152 
1153     /*
1154      * Wait for a moment when a message is displayed that will be overwritten
1155      * by the mode message.
1156      * In Visual mode and with "^O" in Insert mode, a short message will be
1157      * overwritten by the mode message.  Wait a bit, until a key is hit.
1158      * In Visual mode, it's more important to keep the Visual area updated
1159      * than keeping a message (e.g. from a /pat search).
1160      * Only do this if the command was typed, not from a mapping.
1161      * Don't wait when emsg_silent is non-zero.
1162      * Also wait a bit after an error message, e.g. for "^O:".
1163      * Don't redraw the screen, it would remove the message.
1164      */
1165     if (       ((p_smd
1166 		    && (restart_edit != 0
1167 #ifdef FEAT_VISUAL
1168 			|| (VIsual_active
1169 			    && old_pos.lnum == curwin->w_cursor.lnum
1170 			    && old_pos.col == curwin->w_cursor.col)
1171 #endif
1172 		       )
1173 		    && (clear_cmdline
1174 			|| redraw_cmdline)
1175 		    && (msg_didout || (msg_didany && msg_scroll))
1176 		    && !msg_nowait
1177 		    && KeyTyped)
1178 		|| (restart_edit != 0
1179 #ifdef FEAT_VISUAL
1180 		    && !VIsual_active
1181 #endif
1182 		    && (msg_scroll
1183 			|| emsg_on_display)))
1184 	    && oap->regname == 0
1185 	    && !(ca.retval & CA_COMMAND_BUSY)
1186 	    && stuff_empty()
1187 	    && typebuf_typed()
1188 	    && emsg_silent == 0
1189 	    && !did_wait_return
1190 	    && oap->op_type == OP_NOP)
1191     {
1192 	int	save_State = State;
1193 
1194 	/* Draw the cursor with the right shape here */
1195 	if (restart_edit != 0)
1196 	    State = INSERT;
1197 
1198 	/* If need to redraw, and there is a "keep_msg", redraw before the
1199 	 * delay */
1200 	if (must_redraw && keep_msg != NULL && !emsg_on_display)
1201 	{
1202 	    char_u	*kmsg;
1203 
1204 	    kmsg = keep_msg;
1205 	    keep_msg = NULL;
1206 	    /* showmode() will clear keep_msg, but we want to use it anyway */
1207 	    update_screen(0);
1208 	    /* now reset it, otherwise it's put in the history again */
1209 	    keep_msg = kmsg;
1210 	    msg_attr(kmsg, keep_msg_attr);
1211 	    vim_free(kmsg);
1212 	}
1213 	setcursor();
1214 	cursor_on();
1215 	out_flush();
1216 	if (msg_scroll || emsg_on_display)
1217 	    ui_delay(1000L, TRUE);	/* wait at least one second */
1218 	ui_delay(3000L, FALSE);		/* wait up to three seconds */
1219 	State = save_State;
1220 
1221 	msg_scroll = FALSE;
1222 	emsg_on_display = FALSE;
1223     }
1224 
1225     /*
1226      * Finish up after executing a Normal mode command.
1227      */
1228 normal_end:
1229 
1230     msg_nowait = FALSE;
1231 
1232     /* Reset finish_op, in case it was set */
1233 #ifdef CURSOR_SHAPE
1234     c = finish_op;
1235 #endif
1236     finish_op = FALSE;
1237 #ifdef CURSOR_SHAPE
1238     /* Redraw the cursor with another shape, if we were in Operator-pending
1239      * mode or did a replace command. */
1240     if (c || ca.cmdchar == 'r')
1241     {
1242 	ui_cursor_shape();		/* may show different cursor shape */
1243 # ifdef FEAT_MOUSESHAPE
1244 	update_mouseshape(-1);
1245 # endif
1246     }
1247 #endif
1248 
1249 #ifdef FEAT_CMDL_INFO
1250     if (oap->op_type == OP_NOP && oap->regname == 0)
1251 	clear_showcmd();
1252 #endif
1253 
1254     checkpcmark();		/* check if we moved since setting pcmark */
1255     vim_free(ca.searchbuf);
1256 
1257 #ifdef FEAT_MBYTE
1258     if (has_mbyte)
1259 	mb_adjust_cursor();
1260 #endif
1261 
1262 #ifdef FEAT_SCROLLBIND
1263     if (curwin->w_p_scb && toplevel)
1264     {
1265 	validate_cursor();	/* may need to update w_leftcol */
1266 	do_check_scrollbind(TRUE);
1267     }
1268 #endif
1269 
1270     /*
1271      * May restart edit(), if we got here with CTRL-O in Insert mode (but not
1272      * if still inside a mapping that started in Visual mode).
1273      * May switch from Visual to Select mode after CTRL-O command.
1274      */
1275     if (       oap->op_type == OP_NOP
1276 #ifdef FEAT_VISUAL
1277 	    && ((restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1278 		|| restart_VIsual_select == 1)
1279 #endif
1280 	    && !(ca.retval & CA_COMMAND_BUSY)
1281 	    && stuff_empty()
1282 	    && oap->regname == 0)
1283     {
1284 #ifdef FEAT_VISUAL
1285 	if (restart_VIsual_select == 1)
1286 	{
1287 	    VIsual_select = TRUE;
1288 	    showmode();
1289 	    restart_VIsual_select = 0;
1290 	}
1291 #endif
1292 	if (restart_edit != 0
1293 #ifdef FEAT_VISUAL
1294 		&& !VIsual_active
1295 #endif
1296 		&& old_mapped_len == 0)
1297 	    (void)edit(restart_edit, FALSE, 1L);
1298     }
1299 
1300 #ifdef FEAT_VISUAL
1301     if (restart_VIsual_select == 2)
1302 	restart_VIsual_select = 1;
1303 #endif
1304 
1305     /* Save count before an operator for next time. */
1306     opcount = ca.opcount;
1307 }
1308 
1309 /*
1310  * Handle an operator after visual mode or when the movement is finished
1311  */
1312     void
1313 do_pending_operator(cap, old_col, gui_yank)
1314     cmdarg_T	*cap;
1315     int		old_col;
1316     int		gui_yank;
1317 {
1318     oparg_T	*oap = cap->oap;
1319     pos_T	old_cursor;
1320     int		empty_region_error;
1321     int		restart_edit_save;
1322 
1323 #ifdef FEAT_VISUAL
1324     /* The visual area is remembered for redo */
1325     static int	    redo_VIsual_mode = NUL; /* 'v', 'V', or Ctrl-V */
1326     static linenr_T redo_VIsual_line_count; /* number of lines */
1327     static colnr_T  redo_VIsual_col;	    /* number of cols or end column */
1328     static long	    redo_VIsual_count;	    /* count for Visual operator */
1329 # ifdef FEAT_VIRTUALEDIT
1330     int		    include_line_break = FALSE;
1331 # endif
1332 #endif
1333 
1334 #if defined(FEAT_CLIPBOARD)
1335     /*
1336      * Yank the visual area into the GUI selection register before we operate
1337      * on it and lose it forever.
1338      * Don't do it if a specific register was specified, so that ""x"*P works.
1339      * This could call do_pending_operator() recursively, but that's OK
1340      * because gui_yank will be TRUE for the nested call.
1341      */
1342     if (clip_star.available
1343 	    && oap->op_type != OP_NOP
1344 	    && !gui_yank
1345 # ifdef FEAT_VISUAL
1346 	    && VIsual_active
1347 	    && !redo_VIsual_busy
1348 # endif
1349 	    && oap->regname == 0)
1350 	clip_auto_select();
1351 #endif
1352     old_cursor = curwin->w_cursor;
1353 
1354     /*
1355      * If an operation is pending, handle it...
1356      */
1357     if ((finish_op
1358 #ifdef FEAT_VISUAL
1359 		|| VIsual_active
1360 #endif
1361 		) && oap->op_type != OP_NOP)
1362     {
1363 #ifdef FEAT_VISUAL
1364 	oap->is_VIsual = VIsual_active;
1365 	if (oap->motion_force == 'V')
1366 	    oap->motion_type = MLINE;
1367 	else if (oap->motion_force == 'v')
1368 	{
1369 	    /* If the motion was linewise, "inclusive" will not have been set.
1370 	     * Use "exclusive" to be consistent.  Makes "dvj" work nice. */
1371 	    if (oap->motion_type == MLINE)
1372 		oap->inclusive = FALSE;
1373 	    /* If the motion already was characterwise, toggle "inclusive" */
1374 	    else if (oap->motion_type == MCHAR)
1375 		oap->inclusive = !oap->inclusive;
1376 	    oap->motion_type = MCHAR;
1377 	}
1378 	else if (oap->motion_force == Ctrl_V)
1379 	{
1380 	    /* Change line- or characterwise motion into Visual block mode. */
1381 	    VIsual_active = TRUE;
1382 	    VIsual = oap->start;
1383 	    VIsual_mode = Ctrl_V;
1384 	    VIsual_select = FALSE;
1385 	    VIsual_reselect = FALSE;
1386 	}
1387 #endif
1388 
1389 	/* only redo yank when 'y' flag is in 'cpoptions' */
1390 	/* never redo "zf" (define fold) */
1391 	if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1392 #ifdef FEAT_VISUAL
1393 		&& (!VIsual_active || oap->motion_force)
1394 #endif
1395 		&& cap->cmdchar != 'D'
1396 #ifdef FEAT_FOLDING
1397 		&& oap->op_type != OP_FOLD
1398 		&& oap->op_type != OP_FOLDOPEN
1399 		&& oap->op_type != OP_FOLDOPENREC
1400 		&& oap->op_type != OP_FOLDCLOSE
1401 		&& oap->op_type != OP_FOLDCLOSEREC
1402 		&& oap->op_type != OP_FOLDDEL
1403 		&& oap->op_type != OP_FOLDDELREC
1404 #endif
1405 		)
1406 	{
1407 	    prep_redo(oap->regname, cap->count0,
1408 		    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1409 		    oap->motion_force, cap->cmdchar, cap->nchar);
1410 	    if (cap->cmdchar == '/' || cap->cmdchar == '?') /* was a search */
1411 	    {
1412 		/*
1413 		 * If 'cpoptions' does not contain 'r', insert the search
1414 		 * pattern to really repeat the same command.
1415 		 */
1416 		if (vim_strchr(p_cpo, CPO_REDO) == NULL)
1417 		    AppendToRedobuffLit(cap->searchbuf);
1418 		AppendToRedobuff(NL_STR);
1419 	    }
1420 	    else if (cap->cmdchar == ':')
1421 	    {
1422 		/* do_cmdline() has stored the first typed line in
1423 		 * "repeat_cmdline".  When several lines are typed repeating
1424 		 * won't be possible. */
1425 		if (repeat_cmdline == NULL)
1426 		    ResetRedobuff();
1427 		else
1428 		{
1429 		    AppendToRedobuffLit(repeat_cmdline);
1430 		    AppendToRedobuff(NL_STR);
1431 		    vim_free(repeat_cmdline);
1432 		    repeat_cmdline = NULL;
1433 		}
1434 	    }
1435 	}
1436 
1437 #ifdef FEAT_VISUAL
1438 	if (redo_VIsual_busy)
1439 	{
1440 	    oap->start = curwin->w_cursor;
1441 	    curwin->w_cursor.lnum += redo_VIsual_line_count - 1;
1442 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1443 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1444 	    VIsual_mode = redo_VIsual_mode;
1445 	    if (VIsual_mode == 'v')
1446 	    {
1447 		if (redo_VIsual_line_count <= 1)
1448 		    curwin->w_cursor.col += redo_VIsual_col - 1;
1449 		else
1450 		    curwin->w_cursor.col = redo_VIsual_col;
1451 	    }
1452 	    if (redo_VIsual_col == MAXCOL)
1453 	    {
1454 		curwin->w_curswant = MAXCOL;
1455 		coladvance((colnr_T)MAXCOL);
1456 	    }
1457 	    cap->count0 = redo_VIsual_count;
1458 	    if (redo_VIsual_count != 0)
1459 		cap->count1 = redo_VIsual_count;
1460 	    else
1461 		cap->count1 = 1;
1462 	}
1463 	else if (VIsual_active)
1464 	{
1465 	    /* Save the current VIsual area for '< and '> marks, and "gv" */
1466 	    curbuf->b_visual_start = VIsual;
1467 	    curbuf->b_visual_end = curwin->w_cursor;
1468 	    curbuf->b_visual_mode = VIsual_mode;
1469 # ifdef FEAT_EVAL
1470 	    curbuf->b_visual_mode_eval = VIsual_mode;
1471 # endif
1472 	    curbuf->b_visual_curswant = curwin->w_curswant;
1473 
1474 	    /* In Select mode, a linewise selection is operated upon like a
1475 	     * characterwise selection. */
1476 	    if (VIsual_select && VIsual_mode == 'V')
1477 	    {
1478 		if (lt(VIsual, curwin->w_cursor))
1479 		{
1480 		    VIsual.col = 0;
1481 		    curwin->w_cursor.col =
1482 			       (colnr_T)STRLEN(ml_get(curwin->w_cursor.lnum));
1483 		}
1484 		else
1485 		{
1486 		    curwin->w_cursor.col = 0;
1487 		    VIsual.col = (colnr_T)STRLEN(ml_get(VIsual.lnum));
1488 		}
1489 		VIsual_mode = 'v';
1490 	    }
1491 	    /* If 'selection' is "exclusive", backup one character for
1492 	     * charwise selections. */
1493 	    else if (VIsual_mode == 'v')
1494 	    {
1495 # ifdef FEAT_VIRTUALEDIT
1496 		include_line_break =
1497 # endif
1498 		    unadjust_for_sel();
1499 	    }
1500 
1501 	    oap->start = VIsual;
1502 	    if (VIsual_mode == 'V')
1503 		oap->start.col = 0;
1504 	}
1505 #endif /* FEAT_VISUAL */
1506 
1507 	/*
1508 	 * Set oap->start to the first position of the operated text, oap->end
1509 	 * to the end of the operated text.  w_cursor is equal to oap->start.
1510 	 */
1511 	if (lt(oap->start, curwin->w_cursor))
1512 	{
1513 #ifdef FEAT_FOLDING
1514 	    /* Include folded lines completely. */
1515 	    if (!VIsual_active)
1516 	    {
1517 		if (hasFolding(oap->start.lnum, &oap->start.lnum, NULL))
1518 		    oap->start.col = 0;
1519 		if (hasFolding(curwin->w_cursor.lnum, NULL,
1520 						      &curwin->w_cursor.lnum))
1521 		    curwin->w_cursor.col = (colnr_T)STRLEN(ml_get_curline());
1522 	    }
1523 #endif
1524 	    oap->end = curwin->w_cursor;
1525 	    curwin->w_cursor = oap->start;
1526 
1527 	    /* w_virtcol may have been updated; if the cursor goes back to its
1528 	     * previous position w_virtcol becomes invalid and isn't updated
1529 	     * automatically. */
1530 	    curwin->w_valid &= ~VALID_VIRTCOL;
1531 	}
1532 	else
1533 	{
1534 #ifdef FEAT_FOLDING
1535 	    /* Include folded lines completely. */
1536 	    if (!VIsual_active && oap->motion_type == MLINE)
1537 	    {
1538 		if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum,
1539 									NULL))
1540 		    curwin->w_cursor.col = 0;
1541 		if (hasFolding(oap->start.lnum, NULL, &oap->start.lnum))
1542 		    oap->start.col = (colnr_T)STRLEN(ml_get(oap->start.lnum));
1543 	    }
1544 #endif
1545 	    oap->end = oap->start;
1546 	    oap->start = curwin->w_cursor;
1547 	}
1548 
1549 	oap->line_count = oap->end.lnum - oap->start.lnum + 1;
1550 
1551 #ifdef FEAT_VIRTUALEDIT
1552 	/* Set "virtual_op" before resetting VIsual_active. */
1553 	virtual_op = virtual_active();
1554 #endif
1555 
1556 #ifdef FEAT_VISUAL
1557 	if (VIsual_active || redo_VIsual_busy)
1558 	{
1559 	    if (VIsual_mode == Ctrl_V)	/* block mode */
1560 	    {
1561 		colnr_T	    start, end;
1562 
1563 		oap->block_mode = TRUE;
1564 
1565 		getvvcol(curwin, &(oap->start),
1566 				      &oap->start_vcol, NULL, &oap->end_vcol);
1567 		if (!redo_VIsual_busy)
1568 		{
1569 		    getvvcol(curwin, &(oap->end), &start, NULL, &end);
1570 
1571 		    if (start < oap->start_vcol)
1572 			oap->start_vcol = start;
1573 		    if (end > oap->end_vcol)
1574 		    {
1575 			if (*p_sel == 'e' && start >= 1
1576 						&& start - 1 >= oap->end_vcol)
1577 			    oap->end_vcol = start - 1;
1578 			else
1579 			    oap->end_vcol = end;
1580 		    }
1581 		}
1582 
1583 		/* if '$' was used, get oap->end_vcol from longest line */
1584 		if (curwin->w_curswant == MAXCOL)
1585 		{
1586 		    curwin->w_cursor.col = MAXCOL;
1587 		    oap->end_vcol = 0;
1588 		    for (curwin->w_cursor.lnum = oap->start.lnum;
1589 			    curwin->w_cursor.lnum <= oap->end.lnum;
1590 						      ++curwin->w_cursor.lnum)
1591 		    {
1592 			getvvcol(curwin, &curwin->w_cursor, NULL, NULL, &end);
1593 			if (end > oap->end_vcol)
1594 			    oap->end_vcol = end;
1595 		    }
1596 		}
1597 		else if (redo_VIsual_busy)
1598 		    oap->end_vcol = oap->start_vcol + redo_VIsual_col - 1;
1599 		/*
1600 		 * Correct oap->end.col and oap->start.col to be the
1601 		 * upper-left and lower-right corner of the block area.
1602 		 *
1603 		 * (Actually, this does convert column positions into character
1604 		 * positions)
1605 		 */
1606 		curwin->w_cursor.lnum = oap->end.lnum;
1607 		coladvance(oap->end_vcol);
1608 		oap->end = curwin->w_cursor;
1609 
1610 		curwin->w_cursor = oap->start;
1611 		coladvance(oap->start_vcol);
1612 		oap->start = curwin->w_cursor;
1613 	    }
1614 
1615 	    if (!redo_VIsual_busy && !gui_yank)
1616 	    {
1617 		/*
1618 		 * Prepare to reselect and redo Visual: this is based on the
1619 		 * size of the Visual text
1620 		 */
1621 		resel_VIsual_mode = VIsual_mode;
1622 		if (curwin->w_curswant == MAXCOL)
1623 		    resel_VIsual_col = MAXCOL;
1624 		else if (VIsual_mode == Ctrl_V)
1625 		    resel_VIsual_col = oap->end_vcol - oap->start_vcol + 1;
1626 		else if (oap->line_count > 1)
1627 		    resel_VIsual_col = oap->end.col;
1628 		else
1629 		    resel_VIsual_col = oap->end.col - oap->start.col + 1;
1630 		resel_VIsual_line_count = oap->line_count;
1631 	    }
1632 
1633 	    /* can't redo yank (unless 'y' is in 'cpoptions') and ":" */
1634 	    if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1635 		    && oap->op_type != OP_COLON
1636 #ifdef FEAT_FOLDING
1637 		    && oap->op_type != OP_FOLD
1638 		    && oap->op_type != OP_FOLDOPEN
1639 		    && oap->op_type != OP_FOLDOPENREC
1640 		    && oap->op_type != OP_FOLDCLOSE
1641 		    && oap->op_type != OP_FOLDCLOSEREC
1642 		    && oap->op_type != OP_FOLDDEL
1643 		    && oap->op_type != OP_FOLDDELREC
1644 #endif
1645 		    && oap->motion_force == NUL
1646 		    )
1647 	    {
1648 		/* Prepare for redoing.  Only use the nchar field for "r",
1649 		 * otherwise it might be the second char of the operator. */
1650 		prep_redo(oap->regname, 0L, NUL, 'v',
1651 				get_op_char(oap->op_type),
1652 				get_extra_op_char(oap->op_type),
1653 				oap->op_type == OP_REPLACE ? cap->nchar : NUL);
1654 		if (!redo_VIsual_busy)
1655 		{
1656 		    redo_VIsual_mode = resel_VIsual_mode;
1657 		    redo_VIsual_col = resel_VIsual_col;
1658 		    redo_VIsual_line_count = resel_VIsual_line_count;
1659 		    redo_VIsual_count = cap->count0;
1660 		}
1661 	    }
1662 
1663 	    /*
1664 	     * oap->inclusive defaults to TRUE.
1665 	     * If oap->end is on a NUL (empty line) oap->inclusive becomes
1666 	     * FALSE.  This makes "d}P" and "v}dP" work the same.
1667 	     */
1668 	    if (oap->motion_force == NUL || oap->motion_type == MLINE)
1669 		oap->inclusive = TRUE;
1670 	    if (VIsual_mode == 'V')
1671 		oap->motion_type = MLINE;
1672 	    else
1673 	    {
1674 		oap->motion_type = MCHAR;
1675 		if (VIsual_mode != Ctrl_V && *ml_get_pos(&(oap->end)) == NUL
1676 # ifdef FEAT_VIRTUALEDIT
1677 			&& (include_line_break || !virtual_op)
1678 # endif
1679 			)
1680 		{
1681 		    oap->inclusive = FALSE;
1682 		    /* Try to include the newline, unless it's an operator
1683 		     * that works on lines only */
1684 		    if (*p_sel != 'o'
1685 			    && !op_on_lines(oap->op_type)
1686 			    && oap->end.lnum < curbuf->b_ml.ml_line_count)
1687 		    {
1688 			++oap->end.lnum;
1689 			oap->end.col = 0;
1690 # ifdef FEAT_VIRTUALEDIT
1691 			oap->end.coladd = 0;
1692 # endif
1693 			++oap->line_count;
1694 		    }
1695 		}
1696 	    }
1697 
1698 	    redo_VIsual_busy = FALSE;
1699 	    /*
1700 	     * Switch Visual off now, so screen updating does
1701 	     * not show inverted text when the screen is redrawn.
1702 	     * With OP_YANK and sometimes with OP_COLON and OP_FILTER there is
1703 	     * no screen redraw, so it is done here to remove the inverted
1704 	     * part.
1705 	     */
1706 	    if (!gui_yank)
1707 	    {
1708 		VIsual_active = FALSE;
1709 # ifdef FEAT_MOUSE
1710 		setmouse();
1711 		mouse_dragging = 0;
1712 # endif
1713 		if (p_smd)
1714 		    clear_cmdline = TRUE;   /* unshow visual mode later */
1715 #ifdef FEAT_CMDL_INFO
1716 		else
1717 		    clear_showcmd();
1718 #endif
1719 		if ((oap->op_type == OP_YANK
1720 			    || oap->op_type == OP_COLON
1721 			    || oap->op_type == OP_FILTER)
1722 			&& oap->motion_force == NUL)
1723 		    redraw_curbuf_later(INVERTED);
1724 	    }
1725 	}
1726 #endif
1727 
1728 #ifdef FEAT_MBYTE
1729 	/* Include the trailing byte of a multi-byte char. */
1730 	if (has_mbyte && oap->inclusive)
1731 	{
1732 	    int		l;
1733 
1734 	    l = (*mb_ptr2len)(ml_get_pos(&oap->end));
1735 	    if (l > 1)
1736 		oap->end.col += l - 1;
1737 	}
1738 #endif
1739 	curwin->w_set_curswant = TRUE;
1740 
1741 	/*
1742 	 * oap->empty is set when start and end are the same.  The inclusive
1743 	 * flag affects this too, unless yanking and the end is on a NUL.
1744 	 */
1745 	oap->empty = (oap->motion_type == MCHAR
1746 		    && (!oap->inclusive
1747 			|| (oap->op_type == OP_YANK
1748 			    && gchar_pos(&oap->end) == NUL))
1749 		    && equalpos(oap->start, oap->end)
1750 #ifdef FEAT_VIRTUALEDIT
1751 		    && !(virtual_op && oap->start.coladd != oap->end.coladd)
1752 #endif
1753 		    );
1754 	/*
1755 	 * For delete, change and yank, it's an error to operate on an
1756 	 * empty region, when 'E' included in 'cpoptions' (Vi compatible).
1757 	 */
1758 	empty_region_error = (oap->empty
1759 				&& vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL);
1760 
1761 #ifdef FEAT_VISUAL
1762 	/* Force a redraw when operating on an empty Visual region, when
1763 	 * 'modifiable is off or creating a fold. */
1764 	if (oap->is_VIsual && (oap->empty || !curbuf->b_p_ma
1765 # ifdef FEAT_FOLDING
1766 		    || oap->op_type == OP_FOLD
1767 # endif
1768 		    ))
1769 	    redraw_curbuf_later(INVERTED);
1770 #endif
1771 
1772 	/*
1773 	 * If the end of an operator is in column one while oap->motion_type
1774 	 * is MCHAR and oap->inclusive is FALSE, we put op_end after the last
1775 	 * character in the previous line. If op_start is on or before the
1776 	 * first non-blank in the line, the operator becomes linewise
1777 	 * (strange, but that's the way vi does it).
1778 	 */
1779 	if (	   oap->motion_type == MCHAR
1780 		&& oap->inclusive == FALSE
1781 		&& !(cap->retval & CA_NO_ADJ_OP_END)
1782 		&& oap->end.col == 0
1783 #ifdef FEAT_VISUAL
1784 		&& (!oap->is_VIsual || *p_sel == 'o')
1785 		&& !oap->block_mode
1786 #endif
1787 		&& oap->line_count > 1)
1788 	{
1789 	    oap->end_adjusted = TRUE;	    /* remember that we did this */
1790 	    --oap->line_count;
1791 	    --oap->end.lnum;
1792 	    if (inindent(0))
1793 		oap->motion_type = MLINE;
1794 	    else
1795 	    {
1796 		oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
1797 		if (oap->end.col)
1798 		{
1799 		    --oap->end.col;
1800 		    oap->inclusive = TRUE;
1801 		}
1802 	    }
1803 	}
1804 	else
1805 	    oap->end_adjusted = FALSE;
1806 
1807 	switch (oap->op_type)
1808 	{
1809 	case OP_LSHIFT:
1810 	case OP_RSHIFT:
1811 	    op_shift(oap, TRUE,
1812 #ifdef FEAT_VISUAL
1813 		    oap->is_VIsual ? (int)cap->count1 :
1814 #endif
1815 		    1);
1816 	    auto_format(FALSE, TRUE);
1817 	    break;
1818 
1819 	case OP_JOIN_NS:
1820 	case OP_JOIN:
1821 	    if (oap->line_count < 2)
1822 		oap->line_count = 2;
1823 	    if (curwin->w_cursor.lnum + oap->line_count - 1 >
1824 						   curbuf->b_ml.ml_line_count)
1825 		beep_flush();
1826 	    else
1827 	    {
1828 		do_do_join(oap->line_count, oap->op_type == OP_JOIN);
1829 		auto_format(FALSE, TRUE);
1830 	    }
1831 	    break;
1832 
1833 	case OP_DELETE:
1834 #ifdef FEAT_VISUAL
1835 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1836 #endif
1837 	    if (empty_region_error)
1838 		vim_beep();
1839 	    else
1840 	    {
1841 		(void)op_delete(oap);
1842 		if (oap->motion_type == MLINE && has_format_option(FO_AUTO))
1843 		    u_save_cursor();	    /* cursor line wasn't saved yet */
1844 		auto_format(FALSE, TRUE);
1845 	    }
1846 	    break;
1847 
1848 	case OP_YANK:
1849 	    if (empty_region_error)
1850 	    {
1851 		if (!gui_yank)
1852 		    vim_beep();
1853 	    }
1854 	    else
1855 		(void)op_yank(oap, FALSE, !gui_yank);
1856 	    check_cursor_col();
1857 	    break;
1858 
1859 	case OP_CHANGE:
1860 #ifdef FEAT_VISUAL
1861 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1862 #endif
1863 	    if (empty_region_error)
1864 		vim_beep();
1865 	    else
1866 	    {
1867 		/* This is a new edit command, not a restart.  Need to
1868 		 * remember it to make 'insertmode' work with mappings for
1869 		 * Visual mode.  But do this only once and not when typed and
1870 		 * 'insertmode' isn't set. */
1871 		if (p_im || !KeyTyped)
1872 		    restart_edit_save = restart_edit;
1873 		else
1874 		    restart_edit_save = 0;
1875 		restart_edit = 0;
1876 		/* Reset finish_op now, don't want it set inside edit(). */
1877 		finish_op = FALSE;
1878 		if (op_change(oap))	/* will call edit() */
1879 		    cap->retval |= CA_COMMAND_BUSY;
1880 		if (restart_edit == 0)
1881 		    restart_edit = restart_edit_save;
1882 	    }
1883 	    break;
1884 
1885 	case OP_FILTER:
1886 	    if (vim_strchr(p_cpo, CPO_FILTER) != NULL)
1887 		AppendToRedobuff((char_u *)"!\r");  /* use any last used !cmd */
1888 	    else
1889 		bangredo = TRUE;    /* do_bang() will put cmd in redo buffer */
1890 
1891 	case OP_INDENT:
1892 	case OP_COLON:
1893 
1894 #if defined(FEAT_LISP) || defined(FEAT_CINDENT)
1895 	    /*
1896 	     * If 'equalprg' is empty, do the indenting internally.
1897 	     */
1898 	    if (oap->op_type == OP_INDENT && *get_equalprg() == NUL)
1899 	    {
1900 # ifdef FEAT_LISP
1901 		if (curbuf->b_p_lisp)
1902 		{
1903 		    op_reindent(oap, get_lisp_indent);
1904 		    break;
1905 		}
1906 # endif
1907 # ifdef FEAT_CINDENT
1908 		op_reindent(oap,
1909 #  ifdef FEAT_EVAL
1910 			*curbuf->b_p_inde != NUL ? get_expr_indent :
1911 #  endif
1912 			    get_c_indent);
1913 		break;
1914 # endif
1915 	    }
1916 #endif
1917 
1918 	    op_colon(oap);
1919 	    break;
1920 
1921 	case OP_TILDE:
1922 	case OP_UPPER:
1923 	case OP_LOWER:
1924 	case OP_ROT13:
1925 	    if (empty_region_error)
1926 		vim_beep();
1927 	    else
1928 		op_tilde(oap);
1929 	    check_cursor_col();
1930 	    break;
1931 
1932 	case OP_FORMAT:
1933 	    if (*p_fp != NUL)
1934 		op_colon(oap);		/* use external command */
1935 	    else
1936 		op_format(oap, FALSE);	/* use internal function */
1937 	    break;
1938 
1939 	case OP_FORMAT2:
1940 	    op_format(oap, TRUE);	/* use internal function */
1941 	    break;
1942 
1943 	case OP_INSERT:
1944 	case OP_APPEND:
1945 #ifdef FEAT_VISUAL
1946 	    VIsual_reselect = FALSE;	/* don't reselect now */
1947 #endif
1948 #ifdef FEAT_VISUALEXTRA
1949 	    if (empty_region_error)
1950 		vim_beep();
1951 	    else
1952 	    {
1953 		/* This is a new edit command, not a restart.  Need to
1954 		 * remember it to make 'insertmode' work with mappings for
1955 		 * Visual mode.  But do this only once. */
1956 		restart_edit_save = restart_edit;
1957 		restart_edit = 0;
1958 
1959 		op_insert(oap, cap->count1);
1960 
1961 		/* TODO: when inserting in several lines, should format all
1962 		 * the lines. */
1963 		auto_format(FALSE, TRUE);
1964 
1965 		if (restart_edit == 0)
1966 		    restart_edit = restart_edit_save;
1967 	    }
1968 #else
1969 	    vim_beep();
1970 #endif
1971 	    break;
1972 
1973 	case OP_REPLACE:
1974 #ifdef FEAT_VISUAL
1975 	    VIsual_reselect = FALSE;	/* don't reselect now */
1976 #endif
1977 #ifdef FEAT_VISUALEXTRA
1978 	    if (empty_region_error)
1979 #endif
1980 		vim_beep();
1981 #ifdef FEAT_VISUALEXTRA
1982 	    else
1983 		op_replace(oap, cap->nchar);
1984 #endif
1985 	    break;
1986 
1987 #ifdef FEAT_FOLDING
1988 	case OP_FOLD:
1989 	    VIsual_reselect = FALSE;	/* don't reselect now */
1990 	    foldCreate(oap->start.lnum, oap->end.lnum);
1991 	    break;
1992 
1993 	case OP_FOLDOPEN:
1994 	case OP_FOLDOPENREC:
1995 	case OP_FOLDCLOSE:
1996 	case OP_FOLDCLOSEREC:
1997 	    VIsual_reselect = FALSE;	/* don't reselect now */
1998 	    opFoldRange(oap->start.lnum, oap->end.lnum,
1999 		    oap->op_type == OP_FOLDOPEN
2000 					    || oap->op_type == OP_FOLDOPENREC,
2001 		    oap->op_type == OP_FOLDOPENREC
2002 					  || oap->op_type == OP_FOLDCLOSEREC,
2003 					  oap->is_VIsual);
2004 	    break;
2005 
2006 	case OP_FOLDDEL:
2007 	case OP_FOLDDELREC:
2008 	    VIsual_reselect = FALSE;	/* don't reselect now */
2009 	    deleteFold(oap->start.lnum, oap->end.lnum,
2010 			       oap->op_type == OP_FOLDDELREC, oap->is_VIsual);
2011 	    break;
2012 #endif
2013 	default:
2014 	    clearopbeep(oap);
2015 	}
2016 #ifdef FEAT_VIRTUALEDIT
2017 	virtual_op = MAYBE;
2018 #endif
2019 	if (!gui_yank)
2020 	{
2021 	    /*
2022 	     * if 'sol' not set, go back to old column for some commands
2023 	     */
2024 	    if (!p_sol && oap->motion_type == MLINE && !oap->end_adjusted
2025 		    && (oap->op_type == OP_LSHIFT || oap->op_type == OP_RSHIFT
2026 						|| oap->op_type == OP_DELETE))
2027 		coladvance(curwin->w_curswant = old_col);
2028 	}
2029 	else
2030 	{
2031 	    curwin->w_cursor = old_cursor;
2032 	}
2033 #ifdef FEAT_VISUAL
2034 	oap->block_mode = FALSE;
2035 #endif
2036 	clearop(oap);
2037     }
2038 }
2039 
2040 /*
2041  * Handle indent and format operators and visual mode ":".
2042  */
2043     static void
2044 op_colon(oap)
2045     oparg_T	*oap;
2046 {
2047     stuffcharReadbuff(':');
2048 #ifdef FEAT_VISUAL
2049     if (oap->is_VIsual)
2050 	stuffReadbuff((char_u *)"'<,'>");
2051     else
2052 #endif
2053     {
2054 	/*
2055 	 * Make the range look nice, so it can be repeated.
2056 	 */
2057 	if (oap->start.lnum == curwin->w_cursor.lnum)
2058 	    stuffcharReadbuff('.');
2059 	else
2060 	    stuffnumReadbuff((long)oap->start.lnum);
2061 	if (oap->end.lnum != oap->start.lnum)
2062 	{
2063 	    stuffcharReadbuff(',');
2064 	    if (oap->end.lnum == curwin->w_cursor.lnum)
2065 		stuffcharReadbuff('.');
2066 	    else if (oap->end.lnum == curbuf->b_ml.ml_line_count)
2067 		stuffcharReadbuff('$');
2068 	    else if (oap->start.lnum == curwin->w_cursor.lnum)
2069 	    {
2070 		stuffReadbuff((char_u *)".+");
2071 		stuffnumReadbuff((long)oap->line_count - 1);
2072 	    }
2073 	    else
2074 		stuffnumReadbuff((long)oap->end.lnum);
2075 	}
2076     }
2077     if (oap->op_type != OP_COLON)
2078 	stuffReadbuff((char_u *)"!");
2079     if (oap->op_type == OP_INDENT)
2080     {
2081 #ifndef FEAT_CINDENT
2082 	if (*get_equalprg() == NUL)
2083 	    stuffReadbuff((char_u *)"indent");
2084 	else
2085 #endif
2086 	    stuffReadbuff(get_equalprg());
2087 	stuffReadbuff((char_u *)"\n");
2088     }
2089     else if (oap->op_type == OP_FORMAT)
2090     {
2091 	if (*p_fp == NUL)
2092 	    stuffReadbuff((char_u *)"fmt");
2093 	else
2094 	    stuffReadbuff(p_fp);
2095 	stuffReadbuff((char_u *)"\n']");
2096     }
2097 
2098     /*
2099      * do_cmdline() does the rest
2100      */
2101 }
2102 
2103 #if defined(FEAT_MOUSE) || defined(PROTO)
2104 /*
2105  * Do the appropriate action for the current mouse click in the current mode.
2106  * Not used for Command-line mode.
2107  *
2108  * Normal Mode:
2109  * event	 modi-	position      visual	   change   action
2110  *		 fier	cursor			   window
2111  * left press	  -	yes	    end		    yes
2112  * left press	  C	yes	    end		    yes	    "^]" (2)
2113  * left press	  S	yes	    end		    yes	    "*" (2)
2114  * left drag	  -	yes	start if moved	    no
2115  * left relse	  -	yes	start if moved	    no
2116  * middle press	  -	yes	 if not active	    no	    put register
2117  * middle press	  -	yes	 if active	    no	    yank and put
2118  * right press	  -	yes	start or extend	    yes
2119  * right press	  S	yes	no change	    yes	    "#" (2)
2120  * right drag	  -	yes	extend		    no
2121  * right relse	  -	yes	extend		    no
2122  *
2123  * Insert or Replace Mode:
2124  * event	 modi-	position      visual	   change   action
2125  *		 fier	cursor			   window
2126  * left press	  -	yes	(cannot be active)  yes
2127  * left press	  C	yes	(cannot be active)  yes	    "CTRL-O^]" (2)
2128  * left press	  S	yes	(cannot be active)  yes	    "CTRL-O*" (2)
2129  * left drag	  -	yes	start or extend (1) no	    CTRL-O (1)
2130  * left relse	  -	yes	start or extend (1) no	    CTRL-O (1)
2131  * middle press	  -	no	(cannot be active)  no	    put register
2132  * right press	  -	yes	start or extend	    yes	    CTRL-O
2133  * right press	  S	yes	(cannot be active)  yes	    "CTRL-O#" (2)
2134  *
2135  * (1) only if mouse pointer moved since press
2136  * (2) only if click is in same buffer
2137  *
2138  * Return TRUE if start_arrow() should be called for edit mode.
2139  */
2140     int
2141 do_mouse(oap, c, dir, count, fixindent)
2142     oparg_T	*oap;		/* operator argument, can be NULL */
2143     int		c;		/* K_LEFTMOUSE, etc */
2144     int		dir;		/* Direction to 'put' if necessary */
2145     long	count;
2146     int		fixindent;	/* PUT_FIXINDENT if fixing indent necessary */
2147 {
2148     static int	do_always = FALSE;	/* ignore 'mouse' setting next time */
2149     static int	got_click = FALSE;	/* got a click some time back */
2150 
2151     int		which_button;	/* MOUSE_LEFT, _MIDDLE or _RIGHT */
2152     int		is_click;	/* If FALSE it's a drag or release event */
2153     int		is_drag;	/* If TRUE it's a drag event */
2154     int		jump_flags = 0;	/* flags for jump_to_mouse() */
2155     pos_T	start_visual;
2156     int		moved;		/* Has cursor moved? */
2157     int		in_status_line;	/* mouse in status line */
2158 #ifdef FEAT_VERTSPLIT
2159     int		in_sep_line;	/* mouse in vertical separator line */
2160 #endif
2161     int		c1, c2;
2162 #if defined(FEAT_FOLDING)
2163     pos_T	save_cursor;
2164 #endif
2165     win_T	*old_curwin = curwin;
2166 #ifdef FEAT_VISUAL
2167     static pos_T orig_cursor;
2168     colnr_T	leftcol, rightcol;
2169     pos_T	end_visual;
2170     int		diff;
2171     int		old_active = VIsual_active;
2172     int		old_mode = VIsual_mode;
2173 #endif
2174     int		regname;
2175 
2176 #if defined(FEAT_FOLDING)
2177     save_cursor = curwin->w_cursor;
2178 #endif
2179 
2180     /*
2181      * When GUI is active, always recognize mouse events, otherwise:
2182      * - Ignore mouse event in normal mode if 'mouse' doesn't include 'n'.
2183      * - Ignore mouse event in visual mode if 'mouse' doesn't include 'v'.
2184      * - For command line and insert mode 'mouse' is checked before calling
2185      *	 do_mouse().
2186      */
2187     if (do_always)
2188 	do_always = FALSE;
2189     else
2190 #ifdef FEAT_GUI
2191 	if (!gui.in_use)
2192 #endif
2193 	{
2194 #ifdef FEAT_VISUAL
2195 	    if (VIsual_active)
2196 	    {
2197 		if (!mouse_has(MOUSE_VISUAL))
2198 		    return FALSE;
2199 	    }
2200 	    else
2201 #endif
2202 		if (State == NORMAL && !mouse_has(MOUSE_NORMAL))
2203 		return FALSE;
2204 	}
2205 
2206     which_button = get_mouse_button(KEY2TERMCAP1(c), &is_click, &is_drag);
2207 
2208 #ifdef FEAT_MOUSESHAPE
2209     /* May have stopped dragging the status or separator line.  The pointer is
2210      * most likely still on the status or separator line. */
2211     if (!is_drag && drag_status_line)
2212     {
2213 	drag_status_line = FALSE;
2214 	update_mouseshape(SHAPE_IDX_STATUS);
2215     }
2216 # ifdef FEAT_VERTSPLIT
2217     if (!is_drag && drag_sep_line)
2218     {
2219 	drag_sep_line = FALSE;
2220 	update_mouseshape(SHAPE_IDX_VSEP);
2221     }
2222 # endif
2223 #endif
2224 
2225     /*
2226      * Ignore drag and release events if we didn't get a click.
2227      */
2228     if (is_click)
2229 	got_click = TRUE;
2230     else
2231     {
2232 	if (!got_click)			/* didn't get click, ignore */
2233 	    return FALSE;
2234 	if (!is_drag)			/* release, reset got_click */
2235 	    got_click = FALSE;
2236     }
2237 
2238     /*
2239      * ALT is currently ignored
2240      */
2241     if ((mod_mask & MOD_MASK_ALT))
2242 	return FALSE;
2243 
2244     /*
2245      * CTRL right mouse button does CTRL-T
2246      */
2247     if (is_click && (mod_mask & MOD_MASK_CTRL) && which_button == MOUSE_RIGHT)
2248     {
2249 	if (State & INSERT)
2250 	    stuffcharReadbuff(Ctrl_O);
2251 	if (count > 1)
2252 	    stuffnumReadbuff(count);
2253 	stuffcharReadbuff(Ctrl_T);
2254 	got_click = FALSE;		/* ignore drag&release now */
2255 	return FALSE;
2256     }
2257 
2258     /*
2259      * CTRL only works with left mouse button
2260      */
2261     if ((mod_mask & MOD_MASK_CTRL) && which_button != MOUSE_LEFT)
2262 	return FALSE;
2263 
2264     /*
2265      * When a modifier is down, ignore drag and release events, as well as
2266      * multiple clicks and the middle mouse button.
2267      * Accept shift-leftmouse drags when 'mousemodel' is "popup.*".
2268      */
2269     if ((mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL | MOD_MASK_ALT
2270 							     | MOD_MASK_META))
2271 	    && (!is_click
2272 		|| (mod_mask & MOD_MASK_MULTI_CLICK)
2273 		|| which_button == MOUSE_MIDDLE)
2274 	    && !((mod_mask & MOD_MASK_SHIFT)
2275 		&& mouse_model_popup()
2276 		&& which_button == MOUSE_LEFT)
2277 	    )
2278 	return FALSE;
2279 
2280     /*
2281      * If the button press was used as the movement command for an operator
2282      * (eg "d<MOUSE>"), or it is the middle button that is held down, ignore
2283      * drag/release events.
2284      */
2285     if (!is_click && which_button == MOUSE_MIDDLE)
2286 	return FALSE;
2287 
2288     if (oap != NULL)
2289 	regname = oap->regname;
2290     else
2291 	regname = 0;
2292 
2293     /*
2294      * Middle mouse button does a 'put' of the selected text
2295      */
2296     if (which_button == MOUSE_MIDDLE)
2297     {
2298 	if (State == NORMAL)
2299 	{
2300 	    /*
2301 	     * If an operator was pending, we don't know what the user wanted
2302 	     * to do. Go back to normal mode: Clear the operator and beep().
2303 	     */
2304 	    if (oap != NULL && oap->op_type != OP_NOP)
2305 	    {
2306 		clearopbeep(oap);
2307 		return FALSE;
2308 	    }
2309 
2310 #ifdef FEAT_VISUAL
2311 	    /*
2312 	     * If visual was active, yank the highlighted text and put it
2313 	     * before the mouse pointer position.
2314 	     */
2315 	    if (VIsual_active)
2316 	    {
2317 		stuffcharReadbuff('y');
2318 		stuffcharReadbuff(K_MIDDLEMOUSE);
2319 		do_always = TRUE;	/* ignore 'mouse' setting next time */
2320 		return FALSE;
2321 	    }
2322 #endif
2323 	    /*
2324 	     * The rest is below jump_to_mouse()
2325 	     */
2326 	}
2327 
2328 	else if ((State & INSERT) == 0)
2329 	    return FALSE;
2330 
2331 	/*
2332 	 * Middle click in insert mode doesn't move the mouse, just insert the
2333 	 * contents of a register.  '.' register is special, can't insert that
2334 	 * with do_put().
2335 	 * Also paste at the cursor if the current mode isn't in 'mouse' (only
2336 	 * happens for the GUI).
2337 	 */
2338 	if ((State & INSERT) || !mouse_has(MOUSE_NORMAL))
2339 	{
2340 	    if (regname == '.')
2341 		insert_reg(regname, TRUE);
2342 	    else
2343 	    {
2344 #ifdef FEAT_CLIPBOARD
2345 		if (clip_star.available && regname == 0)
2346 		    regname = '*';
2347 #endif
2348 		if ((State & REPLACE_FLAG) && !yank_register_mline(regname))
2349 		    insert_reg(regname, TRUE);
2350 		else
2351 		{
2352 		    do_put(regname, BACKWARD, 1L, fixindent | PUT_CURSEND);
2353 
2354 		    /* Repeat it with CTRL-R CTRL-O r or CTRL-R CTRL-P r */
2355 		    AppendCharToRedobuff(Ctrl_R);
2356 		    AppendCharToRedobuff(fixindent ? Ctrl_P : Ctrl_O);
2357 		    AppendCharToRedobuff(regname == 0 ? '"' : regname);
2358 		}
2359 	    }
2360 	    return FALSE;
2361 	}
2362     }
2363 
2364     /* When dragging or button-up stay in the same window. */
2365     if (!is_click)
2366 	jump_flags |= MOUSE_FOCUS | MOUSE_DID_MOVE;
2367 
2368     start_visual.lnum = 0;
2369 
2370     /*
2371      * When 'mousemodel' is "popup" or "popup_setpos", translate mouse events:
2372      * right button up   -> pop-up menu
2373      * shift-left button -> right button
2374      */
2375     if (mouse_model_popup())
2376     {
2377 	if (which_button == MOUSE_RIGHT
2378 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2379 	{
2380 	    /*
2381 	     * NOTE: Ignore right button down and drag mouse events.
2382 	     * Windows only shows the popup menu on the button up event.
2383 	     */
2384 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_PHOTON) || defined(FEAT_GUI_KDE)
2385 	    if (!is_click)
2386 		return FALSE;
2387 #endif
2388 #if defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN)
2389 	    if (is_click || is_drag)
2390 		return FALSE;
2391 #endif
2392 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_KDE) \
2393 	    || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \
2394 	    || defined(FEAT_GUI_MAC) || defined(FEAT_GUI_PHOTON)
2395 	    if (gui.in_use)
2396 	    {
2397 		jump_flags = 0;
2398 		if (STRCMP(p_mousem, "popup_setpos") == 0)
2399 		{
2400 		    /* First set the cursor position before showing the popup
2401 		     * menu. */
2402 #ifdef FEAT_VISUAL
2403 		    if (VIsual_active)
2404 		    {
2405 			pos_T    m_pos;
2406 
2407 			/*
2408 			 * set MOUSE_MAY_STOP_VIS if we are outside the
2409 			 * selection or the current window (might have false
2410 			 * negative here)
2411 			 */
2412 			if (mouse_row < W_WINROW(curwin)
2413 			     || mouse_row
2414 				      > (W_WINROW(curwin) + curwin->w_height))
2415 			    jump_flags = MOUSE_MAY_STOP_VIS;
2416 			else if (get_fpos_of_mouse(&m_pos) != IN_BUFFER)
2417 			    jump_flags = MOUSE_MAY_STOP_VIS;
2418 			else
2419 			{
2420 			    if ((lt(curwin->w_cursor, VIsual)
2421 					&& (lt(m_pos, curwin->w_cursor)
2422 					    || lt(VIsual, m_pos)))
2423 				    || (lt(VIsual, curwin->w_cursor)
2424 					&& (lt(m_pos, VIsual)
2425 					    || lt(curwin->w_cursor, m_pos))))
2426 			    {
2427 				jump_flags = MOUSE_MAY_STOP_VIS;
2428 			    }
2429 			    else if (VIsual_mode == Ctrl_V)
2430 			    {
2431 				getvcols(curwin, &curwin->w_cursor, &VIsual,
2432 							 &leftcol, &rightcol);
2433 				getvcol(curwin, &m_pos, NULL, &m_pos.col, NULL);
2434 				if (m_pos.col < leftcol || m_pos.col > rightcol)
2435 				    jump_flags = MOUSE_MAY_STOP_VIS;
2436 			    }
2437 			}
2438 		    }
2439 		    else
2440 			jump_flags = MOUSE_MAY_STOP_VIS;
2441 #endif
2442 		}
2443 		if (jump_flags)
2444 		{
2445 		    jump_flags = jump_to_mouse(jump_flags, NULL, which_button);
2446 		    update_curbuf(
2447 #ifdef FEAT_VISUAL
2448 			    VIsual_active ? INVERTED :
2449 #endif
2450 			    VALID);
2451 		    setcursor();
2452 		    out_flush();    /* Update before showing popup menu */
2453 		}
2454 # ifdef FEAT_MENU
2455 		gui_show_popupmenu();
2456 # endif
2457 		return (jump_flags & CURSOR_MOVED) != 0;
2458 	    }
2459 	    else
2460 		return FALSE;
2461 #else
2462 	    return FALSE;
2463 #endif
2464 	}
2465 	if (which_button == MOUSE_LEFT && (mod_mask & MOD_MASK_SHIFT))
2466 	{
2467 	    which_button = MOUSE_RIGHT;
2468 	    mod_mask &= ~MOD_MASK_SHIFT;
2469 	}
2470     }
2471 
2472 #ifdef FEAT_VISUAL
2473     if ((State & (NORMAL | INSERT))
2474 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2475     {
2476 	if (which_button == MOUSE_LEFT)
2477 	{
2478 	    if (is_click)
2479 	    {
2480 		/* stop Visual mode for a left click in a window, but not when
2481 		 * on a status line */
2482 		if (VIsual_active)
2483 		    jump_flags |= MOUSE_MAY_STOP_VIS;
2484 	    }
2485 	    else if (mouse_has(MOUSE_VISUAL))
2486 		jump_flags |= MOUSE_MAY_VIS;
2487 	}
2488 	else if (which_button == MOUSE_RIGHT)
2489 	{
2490 	    if (is_click && VIsual_active)
2491 	    {
2492 		/*
2493 		 * Remember the start and end of visual before moving the
2494 		 * cursor.
2495 		 */
2496 		if (lt(curwin->w_cursor, VIsual))
2497 		{
2498 		    start_visual = curwin->w_cursor;
2499 		    end_visual = VIsual;
2500 		}
2501 		else
2502 		{
2503 		    start_visual = VIsual;
2504 		    end_visual = curwin->w_cursor;
2505 		}
2506 	    }
2507 	    jump_flags |= MOUSE_FOCUS;
2508 	    if (mouse_has(MOUSE_VISUAL))
2509 		jump_flags |= MOUSE_MAY_VIS;
2510 	}
2511     }
2512 #endif
2513 
2514     /*
2515      * If an operator is pending, ignore all drags and releases until the
2516      * next mouse click.
2517      */
2518     if (!is_drag && oap != NULL && oap->op_type != OP_NOP)
2519     {
2520 	got_click = FALSE;
2521 	oap->motion_type = MCHAR;
2522     }
2523 
2524     /* When releasing the button let jump_to_mouse() know. */
2525     if (!is_click && !is_drag)
2526 	jump_flags |= MOUSE_RELEASED;
2527 
2528     /*
2529      * JUMP!
2530      */
2531     jump_flags = jump_to_mouse(jump_flags,
2532 			oap == NULL ? NULL : &(oap->inclusive), which_button);
2533     moved = (jump_flags & CURSOR_MOVED);
2534     in_status_line = (jump_flags & IN_STATUS_LINE);
2535 #ifdef FEAT_VERTSPLIT
2536     in_sep_line = (jump_flags & IN_SEP_LINE);
2537 #endif
2538 
2539 #ifdef FEAT_NETBEANS_INTG
2540     if (usingNetbeans && isNetbeansBuffer(curbuf)
2541 			    && !(jump_flags & (IN_STATUS_LINE | IN_SEP_LINE)))
2542     {
2543 	int key = KEY2TERMCAP1(c);
2544 
2545 	if (key == (int)KE_LEFTRELEASE || key == (int)KE_MIDDLERELEASE
2546 					       || key == (int)KE_RIGHTRELEASE)
2547 	    netbeans_button_release(which_button);
2548     }
2549 #endif
2550 
2551     /* When jumping to another window, clear a pending operator.  That's a bit
2552      * friendlier than beeping and not jumping to that window. */
2553     if (curwin != old_curwin && oap != NULL && oap->op_type != OP_NOP)
2554 	clearop(oap);
2555 
2556 #ifdef FEAT_FOLDING
2557     if (mod_mask == 0
2558 	    && !is_drag
2559 	    && (jump_flags & (MOUSE_FOLD_CLOSE | MOUSE_FOLD_OPEN))
2560 	    && which_button == MOUSE_LEFT)
2561     {
2562 	/* open or close a fold at this line */
2563 	if (jump_flags & MOUSE_FOLD_OPEN)
2564 	    openFold(curwin->w_cursor.lnum, 1L);
2565 	else
2566 	    closeFold(curwin->w_cursor.lnum, 1L);
2567 	/* don't move the cursor if still in the same window */
2568 	if (curwin == old_curwin)
2569 	    curwin->w_cursor = save_cursor;
2570     }
2571 #endif
2572 
2573 #if defined(FEAT_CLIPBOARD) && defined(FEAT_CMDWIN)
2574     if ((jump_flags & IN_OTHER_WIN) && !VIsual_active && clip_star.available)
2575     {
2576 	clip_modeless(which_button, is_click, is_drag);
2577 	return FALSE;
2578     }
2579 #endif
2580 
2581 #ifdef FEAT_VISUAL
2582     /* Set global flag that we are extending the Visual area with mouse
2583      * dragging; temporarily mimimize 'scrolloff'. */
2584     if (VIsual_active && is_drag && p_so)
2585     {
2586 	/* In the very first line, allow scrolling one line */
2587 	if (mouse_row == 0)
2588 	    mouse_dragging = 2;
2589 	else
2590 	    mouse_dragging = 1;
2591     }
2592 
2593     /* When dragging the mouse above the window, scroll down. */
2594     if (is_drag && mouse_row < 0 && !in_status_line)
2595     {
2596 	scroll_redraw(FALSE, 1L);
2597 	mouse_row = 0;
2598     }
2599 
2600     if (start_visual.lnum)		/* right click in visual mode */
2601     {
2602 	/*
2603 	 * In Visual-block mode, divide the area in four, pick up the corner
2604 	 * that is in the quarter that the cursor is in.
2605 	 */
2606 	if (VIsual_mode == Ctrl_V)
2607 	{
2608 	    getvcols(curwin, &start_visual, &end_visual, &leftcol, &rightcol);
2609 	    if (curwin->w_curswant > (leftcol + rightcol) / 2)
2610 		end_visual.col = leftcol;
2611 	    else
2612 		end_visual.col = rightcol;
2613 	    if (curwin->w_cursor.lnum <
2614 				    (start_visual.lnum + end_visual.lnum) / 2)
2615 		end_visual.lnum = end_visual.lnum;
2616 	    else
2617 		end_visual.lnum = start_visual.lnum;
2618 
2619 	    /* move VIsual to the right column */
2620 	    start_visual = curwin->w_cursor;	    /* save the cursor pos */
2621 	    curwin->w_cursor = end_visual;
2622 	    coladvance(end_visual.col);
2623 	    VIsual = curwin->w_cursor;
2624 	    curwin->w_cursor = start_visual;	    /* restore the cursor */
2625 	}
2626 	else
2627 	{
2628 	    /*
2629 	     * If the click is before the start of visual, change the start.
2630 	     * If the click is after the end of visual, change the end.  If
2631 	     * the click is inside the visual, change the closest side.
2632 	     */
2633 	    if (lt(curwin->w_cursor, start_visual))
2634 		VIsual = end_visual;
2635 	    else if (lt(end_visual, curwin->w_cursor))
2636 		VIsual = start_visual;
2637 	    else
2638 	    {
2639 		/* In the same line, compare column number */
2640 		if (end_visual.lnum == start_visual.lnum)
2641 		{
2642 		    if (curwin->w_cursor.col - start_visual.col >
2643 				    end_visual.col - curwin->w_cursor.col)
2644 			VIsual = start_visual;
2645 		    else
2646 			VIsual = end_visual;
2647 		}
2648 
2649 		/* In different lines, compare line number */
2650 		else
2651 		{
2652 		    diff = (curwin->w_cursor.lnum - start_visual.lnum) -
2653 				(end_visual.lnum - curwin->w_cursor.lnum);
2654 
2655 		    if (diff > 0)		/* closest to end */
2656 			VIsual = start_visual;
2657 		    else if (diff < 0)	/* closest to start */
2658 			VIsual = end_visual;
2659 		    else			/* in the middle line */
2660 		    {
2661 			if (curwin->w_cursor.col <
2662 					(start_visual.col + end_visual.col) / 2)
2663 			    VIsual = end_visual;
2664 			else
2665 			    VIsual = start_visual;
2666 		    }
2667 		}
2668 	    }
2669 	}
2670     }
2671     /*
2672      * If Visual mode started in insert mode, execute "CTRL-O"
2673      */
2674     else if ((State & INSERT) && VIsual_active)
2675 	stuffcharReadbuff(Ctrl_O);
2676 #endif
2677 
2678     /*
2679      * Middle mouse click: Put text before cursor.
2680      */
2681     if (which_button == MOUSE_MIDDLE)
2682     {
2683 #ifdef FEAT_CLIPBOARD
2684 	if (clip_star.available && regname == 0)
2685 	    regname = '*';
2686 #endif
2687 	if (yank_register_mline(regname))
2688 	{
2689 	    if (mouse_past_bottom)
2690 		dir = FORWARD;
2691 	}
2692 	else if (mouse_past_eol)
2693 	    dir = FORWARD;
2694 
2695 	if (fixindent)
2696 	{
2697 	    c1 = (dir == BACKWARD) ? '[' : ']';
2698 	    c2 = 'p';
2699 	}
2700 	else
2701 	{
2702 	    c1 = (dir == FORWARD) ? 'p' : 'P';
2703 	    c2 = NUL;
2704 	}
2705 	prep_redo(regname, count, NUL, c1, NUL, c2, NUL);
2706 
2707 	/*
2708 	 * Remember where the paste started, so in edit() Insstart can be set
2709 	 * to this position
2710 	 */
2711 	if (restart_edit != 0)
2712 	    where_paste_started = curwin->w_cursor;
2713 	do_put(regname, dir, count, fixindent | PUT_CURSEND);
2714     }
2715 
2716 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2717     /*
2718      * Ctrl-Mouse click or double click in a quickfix window jumps to the
2719      * error under the mouse pointer.
2720      */
2721     else if (((mod_mask & MOD_MASK_CTRL)
2722 		|| (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2723 	    && bt_quickfix(curbuf))
2724     {
2725 	if (State & INSERT)
2726 	    stuffcharReadbuff(Ctrl_O);
2727 	stuffReadbuff((char_u *)":.cc\n");
2728 	got_click = FALSE;		/* ignore drag&release now */
2729     }
2730 #endif
2731 
2732     /*
2733      * Ctrl-Mouse click (or double click in a help window) jumps to the tag
2734      * under the mouse pointer.
2735      */
2736     else if ((mod_mask & MOD_MASK_CTRL) || (curbuf->b_help
2737 		     && (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK))
2738     {
2739 	if (State & INSERT)
2740 	    stuffcharReadbuff(Ctrl_O);
2741 	stuffcharReadbuff(Ctrl_RSB);
2742 	got_click = FALSE;		/* ignore drag&release now */
2743     }
2744 
2745     /*
2746      * Shift-Mouse click searches for the next occurrence of the word under
2747      * the mouse pointer
2748      */
2749     else if ((mod_mask & MOD_MASK_SHIFT))
2750     {
2751 	if (State & INSERT
2752 #ifdef FEAT_VISUAL
2753 		|| (VIsual_active && VIsual_select)
2754 #endif
2755 		)
2756 	    stuffcharReadbuff(Ctrl_O);
2757 	if (which_button == MOUSE_LEFT)
2758 	    stuffcharReadbuff('*');
2759 	else	/* MOUSE_RIGHT */
2760 	    stuffcharReadbuff('#');
2761     }
2762 
2763     /* Handle double clicks, unless on status line */
2764     else if (in_status_line)
2765     {
2766 #ifdef FEAT_MOUSESHAPE
2767 	if ((is_drag || is_click) && !drag_status_line)
2768 	{
2769 	    drag_status_line = TRUE;
2770 	    update_mouseshape(-1);
2771 	}
2772 #endif
2773     }
2774 #ifdef FEAT_VERTSPLIT
2775     else if (in_sep_line)
2776     {
2777 # ifdef FEAT_MOUSESHAPE
2778 	if ((is_drag || is_click) && !drag_sep_line)
2779 	{
2780 	    drag_sep_line = TRUE;
2781 	    update_mouseshape(-1);
2782 	}
2783 # endif
2784     }
2785 #endif
2786 #ifdef FEAT_VISUAL
2787     else if ((mod_mask & MOD_MASK_MULTI_CLICK) && (State & (NORMAL | INSERT))
2788 	     && mouse_has(MOUSE_VISUAL))
2789     {
2790 	if (is_click || !VIsual_active)
2791 	{
2792 	    if (VIsual_active)
2793 		orig_cursor = VIsual;
2794 	    else
2795 	    {
2796 		check_visual_highlight();
2797 		VIsual = curwin->w_cursor;
2798 		orig_cursor = VIsual;
2799 		VIsual_active = TRUE;
2800 		VIsual_reselect = TRUE;
2801 		/* start Select mode if 'selectmode' contains "mouse" */
2802 		may_start_select('o');
2803 		setmouse();
2804 	    }
2805 	    if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2806 		VIsual_mode = 'v';
2807 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_3CLICK)
2808 		VIsual_mode = 'V';
2809 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_4CLICK)
2810 		VIsual_mode = Ctrl_V;
2811 #ifdef FEAT_CLIPBOARD
2812 	    /* Make sure the clipboard gets updated.  Needed because start and
2813 	     * end may still be the same, and the selection needs to be owned */
2814 	    clip_star.vmode = NUL;
2815 #endif
2816 	}
2817 	/*
2818 	 * A double click selects a word or a block.
2819 	 */
2820 	if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2821 	{
2822 	    pos_T	*pos = NULL;
2823 	    int		gc;
2824 
2825 	    if (is_click)
2826 	    {
2827 		/* If the character under the cursor (skipping white space) is
2828 		 * not a word character, try finding a match and select a (),
2829 		 * {}, [], #if/#endif, etc. block. */
2830 		end_visual = curwin->w_cursor;
2831 		while (gc = gchar_pos(&end_visual), vim_iswhite(gc))
2832 		    inc(&end_visual);
2833 		if (oap != NULL)
2834 		    oap->motion_type = MCHAR;
2835 		if (oap != NULL
2836 			&& VIsual_mode == 'v'
2837 			&& !vim_iswordc(gchar_pos(&end_visual))
2838 			&& equalpos(curwin->w_cursor, VIsual)
2839 			&& (pos = findmatch(oap, NUL)) != NULL)
2840 		{
2841 		    curwin->w_cursor = *pos;
2842 		    if (oap->motion_type == MLINE)
2843 			VIsual_mode = 'V';
2844 		    else if (*p_sel == 'e')
2845 		    {
2846 			if (lt(curwin->w_cursor, VIsual))
2847 			    ++VIsual.col;
2848 			else
2849 			    ++curwin->w_cursor.col;
2850 		    }
2851 		}
2852 	    }
2853 
2854 	    if (pos == NULL && (is_click || is_drag))
2855 	    {
2856 		/* When not found a match or when dragging: extend to include
2857 		 * a word. */
2858 		if (lt(curwin->w_cursor, orig_cursor))
2859 		{
2860 		    find_start_of_word(&curwin->w_cursor);
2861 		    find_end_of_word(&VIsual);
2862 		}
2863 		else
2864 		{
2865 		    find_start_of_word(&VIsual);
2866 		    if (*p_sel == 'e' && *ml_get_cursor() != NUL)
2867 #ifdef FEAT_MBYTE
2868 			curwin->w_cursor.col +=
2869 					 (*mb_ptr2len)(ml_get_cursor());
2870 #else
2871 			++curwin->w_cursor.col;
2872 #endif
2873 		    find_end_of_word(&curwin->w_cursor);
2874 		}
2875 	    }
2876 	    curwin->w_set_curswant = TRUE;
2877 	}
2878 	if (is_click)
2879 	    redraw_curbuf_later(INVERTED);	/* update the inversion */
2880     }
2881     else if (VIsual_active && !old_active)
2882 	VIsual_mode = 'v';
2883 
2884     /* If Visual mode changed show it later. */
2885     if (p_smd && (VIsual_active != old_active || VIsual_mode != old_mode))
2886 	redraw_cmdline = TRUE;
2887 #endif
2888 
2889     return moved;
2890 }
2891 
2892 #ifdef FEAT_VISUAL
2893 /*
2894  * Move "pos" back to the start of the word it's in.
2895  */
2896     static void
2897 find_start_of_word(pos)
2898     pos_T	*pos;
2899 {
2900     char_u	*line;
2901     int		cclass;
2902     int		col;
2903 
2904     line = ml_get(pos->lnum);
2905     cclass = get_mouse_class(line + pos->col);
2906 
2907     while (pos->col > 0)
2908     {
2909 	col = pos->col - 1;
2910 #ifdef FEAT_MBYTE
2911 	col -= (*mb_head_off)(line, line + col);
2912 #endif
2913 	if (get_mouse_class(line + col) != cclass)
2914 	    break;
2915 	pos->col = col;
2916     }
2917 }
2918 
2919 /*
2920  * Move "pos" forward to the end of the word it's in.
2921  * When 'selection' is "exclusive", the position is just after the word.
2922  */
2923     static void
2924 find_end_of_word(pos)
2925     pos_T	*pos;
2926 {
2927     char_u	*line;
2928     int		cclass;
2929     int		col;
2930 
2931     line = ml_get(pos->lnum);
2932     if (*p_sel == 'e' && pos->col > 0)
2933     {
2934 	--pos->col;
2935 #ifdef FEAT_MBYTE
2936 	pos->col -= (*mb_head_off)(line, line + pos->col);
2937 #endif
2938     }
2939     cclass = get_mouse_class(line + pos->col);
2940     while (line[pos->col] != NUL)
2941     {
2942 #ifdef FEAT_MBYTE
2943 	col = pos->col + (*mb_ptr2len)(line + pos->col);
2944 #else
2945 	col = pos->col + 1;
2946 #endif
2947 	if (get_mouse_class(line + col) != cclass)
2948 	{
2949 	    if (*p_sel == 'e')
2950 		pos->col = col;
2951 	    break;
2952 	}
2953 	pos->col = col;
2954     }
2955 }
2956 
2957 /*
2958  * Get class of a character for selection: same class means same word.
2959  * 0: blank
2960  * 1: punctuation groups
2961  * 2: normal word character
2962  * >2: multi-byte word character.
2963  */
2964     static int
2965 get_mouse_class(p)
2966     char_u	*p;
2967 {
2968     int		c;
2969 
2970 #ifdef FEAT_MBYTE
2971     if (has_mbyte && MB_BYTE2LEN(p[0]) > 1)
2972 	return mb_get_class(p);
2973 #endif
2974 
2975     c = *p;
2976     if (c == ' ' || c == '\t')
2977 	return 0;
2978 
2979     if (vim_iswordc(c))
2980 	return 2;
2981 
2982     /*
2983      * There are a few special cases where we want certain combinations of
2984      * characters to be considered as a single word.  These are things like
2985      * "->", "/ *", "*=", "+=", "&=", "<=", ">=", "!=" etc.  Otherwise, each
2986      * character is in it's own class.
2987      */
2988     if (c != NUL && vim_strchr((char_u *)"-+*/%<>&|^!=", c) != NULL)
2989 	return 1;
2990     return c;
2991 }
2992 #endif /* FEAT_VISUAL */
2993 #endif /* FEAT_MOUSE */
2994 
2995 #if defined(FEAT_VISUAL) || defined(PROTO)
2996 /*
2997  * Check if  highlighting for visual mode is possible, give a warning message
2998  * if not.
2999  */
3000     void
3001 check_visual_highlight()
3002 {
3003     static int	    did_check = FALSE;
3004 
3005     if (full_screen)
3006     {
3007 	if (!did_check && hl_attr(HLF_V) == 0)
3008 	    MSG(_("Warning: terminal cannot highlight"));
3009 	did_check = TRUE;
3010     }
3011 }
3012 
3013 /*
3014  * End visual mode.
3015  * This function should ALWAYS be called to end Visual mode, except from
3016  * do_pending_operator().
3017  */
3018     void
3019 end_visual_mode()
3020 {
3021 #ifdef FEAT_CLIPBOARD
3022     /*
3023      * If we are using the clipboard, then remember what was selected in case
3024      * we need to paste it somewhere while we still own the selection.
3025      * Only do this when the clipboard is already owned.  Don't want to grab
3026      * the selection when hitting ESC.
3027      */
3028     if (clip_star.available && clip_star.owned)
3029 	clip_auto_select();
3030 #endif
3031 
3032     VIsual_active = FALSE;
3033 #ifdef FEAT_MOUSE
3034     setmouse();
3035     mouse_dragging = 0;
3036 #endif
3037 
3038     /* Save the current VIsual area for '< and '> marks, and "gv" */
3039     curbuf->b_visual_mode = VIsual_mode;
3040 #ifdef FEAT_EVAL
3041     curbuf->b_visual_mode_eval = VIsual_mode;
3042 #endif
3043     curbuf->b_visual_start = VIsual;
3044     curbuf->b_visual_end = curwin->w_cursor;
3045     curbuf->b_visual_curswant = curwin->w_curswant;
3046 #ifdef FEAT_VIRTUALEDIT
3047     if (!virtual_active())
3048 	curwin->w_cursor.coladd = 0;
3049 #endif
3050 
3051     if (p_smd)
3052 	clear_cmdline = TRUE;		/* unshow visual mode later */
3053 #ifdef FEAT_CMDL_INFO
3054     else
3055 	clear_showcmd();
3056 #endif
3057 
3058     /* Don't leave the cursor past the end of the line */
3059     if (curwin->w_cursor.col > 0 && *ml_get_cursor() == NUL)
3060 	--curwin->w_cursor.col;
3061 }
3062 
3063 /*
3064  * Reset VIsual_active and VIsual_reselect.
3065  */
3066     void
3067 reset_VIsual_and_resel()
3068 {
3069     if (VIsual_active)
3070     {
3071 	end_visual_mode();
3072 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3073     }
3074     VIsual_reselect = FALSE;
3075 }
3076 
3077 /*
3078  * Reset VIsual_active and VIsual_reselect if it's set.
3079  */
3080     void
3081 reset_VIsual()
3082 {
3083     if (VIsual_active)
3084     {
3085 	end_visual_mode();
3086 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3087 	VIsual_reselect = FALSE;
3088     }
3089 }
3090 #endif /* FEAT_VISUAL */
3091 
3092 #if defined(FEAT_BEVAL)
3093 static int find_is_eval_item __ARGS((char_u *ptr, int *colp, int *nbp, int dir));
3094 
3095 /*
3096  * Check for a balloon-eval special item to include when searching for an
3097  * identifier.  When "dir" is BACKWARD "ptr[-1]" must be valid!
3098  * Returns TRUE if the character at "*ptr" should be included.
3099  * "dir" is FORWARD or BACKWARD, the direction of searching.
3100  * "*colp" is in/decremented if "ptr[-dir]" should also be included.
3101  * "bnp" points to a counter for square brackets.
3102  */
3103     static int
3104 find_is_eval_item(ptr, colp, bnp, dir)
3105     char_u	*ptr;
3106     int		*colp;
3107     int		*bnp;
3108     int		dir;
3109 {
3110     /* Accept everything inside []. */
3111     if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD))
3112 	++*bnp;
3113     if (*bnp > 0)
3114     {
3115 	if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD))
3116 	    --*bnp;
3117 	return TRUE;
3118     }
3119 
3120     /* skip over "s.var" */
3121     if (*ptr == '.')
3122 	return TRUE;
3123 
3124     /* two-character item: s->var */
3125     if (ptr[dir == BACKWARD ? 0 : 1] == '>'
3126 	    && ptr[dir == BACKWARD ? -1 : 0] == '-')
3127     {
3128 	*colp += dir;
3129 	return TRUE;
3130     }
3131     return FALSE;
3132 }
3133 #endif
3134 
3135 /*
3136  * Find the identifier under or to the right of the cursor.
3137  * "find_type" can have one of three values:
3138  * FIND_IDENT:   find an identifier (keyword)
3139  * FIND_STRING:  find any non-white string
3140  * FIND_IDENT + FIND_STRING: find any non-white string, identifier preferred.
3141  * FIND_EVAL:	 find text useful for C program debugging
3142  *
3143  * There are three steps:
3144  * 1. Search forward for the start of an identifier/string.  Doesn't move if
3145  *    already on one.
3146  * 2. Search backward for the start of this identifier/string.
3147  *    This doesn't match the real Vi but I like it a little better and it
3148  *    shouldn't bother anyone.
3149  * 3. Search forward to the end of this identifier/string.
3150  *    When FIND_IDENT isn't defined, we backup until a blank.
3151  *
3152  * Returns the length of the string, or zero if no string is found.
3153  * If a string is found, a pointer to the string is put in "*string".  This
3154  * string is not always NUL terminated.
3155  */
3156     int
3157 find_ident_under_cursor(string, find_type)
3158     char_u	**string;
3159     int		find_type;
3160 {
3161     return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
3162 				     curwin->w_cursor.col, string, find_type);
3163 }
3164 
3165 /*
3166  * Like find_ident_under_cursor(), but for any window and any position.
3167  * However: Uses 'iskeyword' from the current window!.
3168  */
3169     int
3170 find_ident_at_pos(wp, lnum, startcol, string, find_type)
3171     win_T	*wp;
3172     linenr_T	lnum;
3173     colnr_T	startcol;
3174     char_u	**string;
3175     int		find_type;
3176 {
3177     char_u	*ptr;
3178     int		col = 0;	    /* init to shut up GCC */
3179     int		i;
3180 #ifdef FEAT_MBYTE
3181     int		this_class = 0;
3182     int		prev_class;
3183     int		prevcol;
3184 #endif
3185 #if defined(FEAT_BEVAL)
3186     int		bn = 0;	    /* bracket nesting */
3187 #endif
3188 
3189     /*
3190      * if i == 0: try to find an identifier
3191      * if i == 1: try to find any non-white string
3192      */
3193     ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
3194     for (i = (find_type & FIND_IDENT) ? 0 : 1;	i < 2; ++i)
3195     {
3196 	/*
3197 	 * 1. skip to start of identifier/string
3198 	 */
3199 	col = startcol;
3200 #ifdef FEAT_MBYTE
3201 	if (has_mbyte)
3202 	{
3203 	    while (ptr[col] != NUL)
3204 	    {
3205 # if defined(FEAT_BEVAL)
3206 		/* Stop at a ']' to evaluate "a[x]". */
3207 		if ((find_type & FIND_EVAL) && ptr[col] == ']')
3208 		    break;
3209 # endif
3210 		this_class = mb_get_class(ptr + col);
3211 		if (this_class != 0 && (i == 1 || this_class != 1))
3212 		    break;
3213 		col += (*mb_ptr2len)(ptr + col);
3214 	    }
3215 	}
3216 	else
3217 #endif
3218 	    while (ptr[col] != NUL
3219 		    && (i == 0 ? !vim_iswordc(ptr[col]) : vim_iswhite(ptr[col]))
3220 # if defined(FEAT_BEVAL)
3221 		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
3222 # endif
3223 		    )
3224 		++col;
3225 
3226 #if defined(FEAT_BEVAL)
3227 	/* When starting on a ']' count it, so that we include the '['. */
3228 	bn = ptr[col] == ']';
3229 #endif
3230 
3231 	/*
3232 	 * 2. Back up to start of identifier/string.
3233 	 */
3234 #ifdef FEAT_MBYTE
3235 	if (has_mbyte)
3236 	{
3237 	    /* Remember class of character under cursor. */
3238 # if defined(FEAT_BEVAL)
3239 	    if ((find_type & FIND_EVAL) && ptr[col] == ']')
3240 		this_class = mb_get_class((char_u *)"a");
3241 	    else
3242 # endif
3243 		this_class = mb_get_class(ptr + col);
3244 	    while (col > 0)
3245 	    {
3246 		prevcol = col - 1 - (*mb_head_off)(ptr, ptr + col - 1);
3247 		prev_class = mb_get_class(ptr + prevcol);
3248 		if (this_class != prev_class
3249 			&& (i == 0
3250 			    || prev_class == 0
3251 			    || (find_type & FIND_IDENT))
3252 # if defined(FEAT_BEVAL)
3253 			&& (!(find_type & FIND_EVAL)
3254 			    || prevcol == 0
3255 			    || !find_is_eval_item(ptr + prevcol, &prevcol,
3256 							       &bn, BACKWARD))
3257 # endif
3258 			)
3259 		    break;
3260 		col = prevcol;
3261 	    }
3262 
3263 	    /* If we don't want just any old string, or we've found an
3264 	     * identifier, stop searching. */
3265 	    if (this_class > 2)
3266 		this_class = 2;
3267 	    if (!(find_type & FIND_STRING) || this_class == 2)
3268 		break;
3269 	}
3270 	else
3271 #endif
3272 	{
3273 	    while (col > 0
3274 		    && ((i == 0
3275 			    ? vim_iswordc(ptr[col - 1])
3276 			    : (!vim_iswhite(ptr[col - 1])
3277 				&& (!(find_type & FIND_IDENT)
3278 				    || !vim_iswordc(ptr[col - 1]))))
3279 #if defined(FEAT_BEVAL)
3280 			|| ((find_type & FIND_EVAL)
3281 			    && col > 1
3282 			    && find_is_eval_item(ptr + col - 1, &col,
3283 							       &bn, BACKWARD))
3284 #endif
3285 			))
3286 		--col;
3287 
3288 	    /* If we don't want just any old string, or we've found an
3289 	     * identifier, stop searching. */
3290 	    if (!(find_type & FIND_STRING) || vim_iswordc(ptr[col]))
3291 		break;
3292 	}
3293     }
3294 
3295     if (ptr[col] == NUL || (i == 0 && (
3296 #ifdef FEAT_MBYTE
3297 		has_mbyte ? this_class != 2 :
3298 #endif
3299 		!vim_iswordc(ptr[col]))))
3300     {
3301 	/*
3302 	 * didn't find an identifier or string
3303 	 */
3304 	if (find_type & FIND_STRING)
3305 	    EMSG(_("E348: No string under cursor"));
3306 	else
3307 	    EMSG(_("E349: No identifier under cursor"));
3308 	return 0;
3309     }
3310     ptr += col;
3311     *string = ptr;
3312 
3313     /*
3314      * 3. Find the end if the identifier/string.
3315      */
3316 #if defined(FEAT_BEVAL)
3317     bn = 0;
3318     startcol -= col;
3319 #endif
3320     col = 0;
3321 #ifdef FEAT_MBYTE
3322     if (has_mbyte)
3323     {
3324 	/* Search for point of changing multibyte character class. */
3325 	this_class = mb_get_class(ptr);
3326 	while (ptr[col] != NUL
3327 		&& ((i == 0 ? mb_get_class(ptr + col) == this_class
3328 			    : mb_get_class(ptr + col) != 0)
3329 # if defined(FEAT_BEVAL)
3330 		    || ((find_type & FIND_EVAL)
3331 			&& col <= (int)startcol
3332 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3333 # endif
3334 		))
3335 	    col += (*mb_ptr2len)(ptr + col);
3336     }
3337     else
3338 #endif
3339 	while ((i == 0 ? vim_iswordc(ptr[col])
3340 		       : (ptr[col] != NUL && !vim_iswhite(ptr[col])))
3341 # if defined(FEAT_BEVAL)
3342 		    || ((find_type & FIND_EVAL)
3343 			&& col <= (int)startcol
3344 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3345 # endif
3346 		)
3347 	{
3348 	    ++col;
3349 	}
3350 
3351     return col;
3352 }
3353 
3354 /*
3355  * Prepare for redo of a normal command.
3356  */
3357     static void
3358 prep_redo_cmd(cap)
3359     cmdarg_T  *cap;
3360 {
3361     prep_redo(cap->oap->regname, cap->count0,
3362 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
3363 }
3364 
3365 /*
3366  * Prepare for redo of any command.
3367  * Note that only the last argument can be a multi-byte char.
3368  */
3369     static void
3370 prep_redo(regname, num, cmd1, cmd2, cmd3, cmd4, cmd5)
3371     int	    regname;
3372     long    num;
3373     int	    cmd1;
3374     int	    cmd2;
3375     int	    cmd3;
3376     int	    cmd4;
3377     int	    cmd5;
3378 {
3379     ResetRedobuff();
3380     if (regname != 0)	/* yank from specified buffer */
3381     {
3382 	AppendCharToRedobuff('"');
3383 	AppendCharToRedobuff(regname);
3384     }
3385     if (num)
3386 	AppendNumberToRedobuff(num);
3387 
3388     if (cmd1 != NUL)
3389 	AppendCharToRedobuff(cmd1);
3390     if (cmd2 != NUL)
3391 	AppendCharToRedobuff(cmd2);
3392     if (cmd3 != NUL)
3393 	AppendCharToRedobuff(cmd3);
3394     if (cmd4 != NUL)
3395 	AppendCharToRedobuff(cmd4);
3396     if (cmd5 != NUL)
3397 	AppendCharToRedobuff(cmd5);
3398 }
3399 
3400 /*
3401  * check for operator active and clear it
3402  *
3403  * return TRUE if operator was active
3404  */
3405     static int
3406 checkclearop(oap)
3407     oparg_T	*oap;
3408 {
3409     if (oap->op_type == OP_NOP)
3410 	return FALSE;
3411     clearopbeep(oap);
3412     return TRUE;
3413 }
3414 
3415 /*
3416  * check for operator or Visual active and clear it
3417  *
3418  * return TRUE if operator was active
3419  */
3420     static int
3421 checkclearopq(oap)
3422     oparg_T	*oap;
3423 {
3424     if (oap->op_type == OP_NOP
3425 #ifdef FEAT_VISUAL
3426 	    && !VIsual_active
3427 #endif
3428 	    )
3429 	return FALSE;
3430     clearopbeep(oap);
3431     return TRUE;
3432 }
3433 
3434     static void
3435 clearop(oap)
3436     oparg_T	*oap;
3437 {
3438     oap->op_type = OP_NOP;
3439     oap->regname = 0;
3440     oap->motion_force = NUL;
3441     oap->use_reg_one = FALSE;
3442 }
3443 
3444     static void
3445 clearopbeep(oap)
3446     oparg_T	*oap;
3447 {
3448     clearop(oap);
3449     beep_flush();
3450 }
3451 
3452 #ifdef FEAT_VISUAL
3453 /*
3454  * Remove the shift modifier from a special key.
3455  */
3456     static void
3457 unshift_special(cap)
3458     cmdarg_T	*cap;
3459 {
3460     switch (cap->cmdchar)
3461     {
3462 	case K_S_RIGHT:	cap->cmdchar = K_RIGHT; break;
3463 	case K_S_LEFT:	cap->cmdchar = K_LEFT; break;
3464 	case K_S_UP:	cap->cmdchar = K_UP; break;
3465 	case K_S_DOWN:	cap->cmdchar = K_DOWN; break;
3466 	case K_S_HOME:	cap->cmdchar = K_HOME; break;
3467 	case K_S_END:	cap->cmdchar = K_END; break;
3468     }
3469     cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
3470 }
3471 #endif
3472 
3473 #if defined(FEAT_CMDL_INFO) || defined(PROTO)
3474 /*
3475  * Routines for displaying a partly typed command
3476  */
3477 
3478 #ifdef FEAT_VISUAL	/* need room for size of Visual area */
3479 # define SHOWCMD_BUFLEN SHOWCMD_COLS + 1 + 30
3480 #else
3481 # define SHOWCMD_BUFLEN SHOWCMD_COLS + 1
3482 #endif
3483 static char_u	showcmd_buf[SHOWCMD_BUFLEN];
3484 static char_u	old_showcmd_buf[SHOWCMD_BUFLEN];  /* For push_showcmd() */
3485 static int	showcmd_is_clear = TRUE;
3486 static int	showcmd_visual = FALSE;
3487 
3488 static void display_showcmd __ARGS((void));
3489 
3490     void
3491 clear_showcmd()
3492 {
3493     if (!p_sc)
3494 	return;
3495 
3496 #ifdef FEAT_VISUAL
3497     if (VIsual_active && !char_avail())
3498     {
3499 	int		i = lt(VIsual, curwin->w_cursor);
3500 	long		lines;
3501 	colnr_T		leftcol, rightcol;
3502 	linenr_T	top, bot;
3503 
3504 	/* Show the size of the Visual area. */
3505 	if (i)
3506 	{
3507 	    top = VIsual.lnum;
3508 	    bot = curwin->w_cursor.lnum;
3509 	}
3510 	else
3511 	{
3512 	    top = curwin->w_cursor.lnum;
3513 	    bot = VIsual.lnum;
3514 	}
3515 # ifdef FEAT_FOLDING
3516 	/* Include closed folds as a whole. */
3517 	hasFolding(top, &top, NULL);
3518 	hasFolding(bot, NULL, &bot);
3519 # endif
3520 	lines = bot - top + 1;
3521 
3522 	if (VIsual_mode == Ctrl_V)
3523 	{
3524 	    getvcols(curwin, &curwin->w_cursor, &VIsual, &leftcol, &rightcol);
3525 	    sprintf((char *)showcmd_buf, "%ldx%ld", lines,
3526 					      (long)(rightcol - leftcol + 1));
3527 	}
3528 	else if (VIsual_mode == 'V' || VIsual.lnum != curwin->w_cursor.lnum)
3529 	    sprintf((char *)showcmd_buf, "%ld", lines);
3530 	else
3531 	    sprintf((char *)showcmd_buf, "%ld", (long)(i
3532 		    ? curwin->w_cursor.col - VIsual.col
3533 		    : VIsual.col - curwin->w_cursor.col) + (*p_sel != 'e'));
3534 	showcmd_buf[SHOWCMD_COLS] = NUL;	/* truncate */
3535 	showcmd_visual = TRUE;
3536     }
3537     else
3538 #endif
3539     {
3540 	showcmd_buf[0] = NUL;
3541 	showcmd_visual = FALSE;
3542 
3543 	/* Don't actually display something if there is nothing to clear. */
3544 	if (showcmd_is_clear)
3545 	    return;
3546     }
3547 
3548     display_showcmd();
3549 }
3550 
3551 /*
3552  * Add 'c' to string of shown command chars.
3553  * Return TRUE if output has been written (and setcursor() has been called).
3554  */
3555     int
3556 add_to_showcmd(c)
3557     int		c;
3558 {
3559     char_u	*p;
3560     int		old_len;
3561     int		extra_len;
3562     int		overflow;
3563 #if defined(FEAT_MOUSE)
3564     int		i;
3565     static int	ignore[] =
3566     {
3567 #ifdef FEAT_GUI
3568 	K_VER_SCROLLBAR, K_HOR_SCROLLBAR,
3569 	K_LEFTMOUSE_NM, K_LEFTRELEASE_NM,
3570 #endif
3571 	K_IGNORE,
3572 	K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE,
3573 	K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
3574 	K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
3575 	K_MOUSEDOWN, K_MOUSEUP,
3576 	K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
3577 	0
3578     };
3579 #endif
3580 
3581     if (!p_sc)
3582 	return FALSE;
3583 
3584     if (showcmd_visual)
3585     {
3586 	showcmd_buf[0] = NUL;
3587 	showcmd_visual = FALSE;
3588     }
3589 
3590 #if defined(FEAT_MOUSE)
3591     /* Ignore keys that are scrollbar updates and mouse clicks */
3592     if (IS_SPECIAL(c))
3593 	for (i = 0; ignore[i] != 0; ++i)
3594 	    if (ignore[i] == c)
3595 		return FALSE;
3596 #endif
3597 
3598     p = transchar(c);
3599     old_len = (int)STRLEN(showcmd_buf);
3600     extra_len = (int)STRLEN(p);
3601     overflow = old_len + extra_len - SHOWCMD_COLS;
3602     if (overflow > 0)
3603 	STRCPY(showcmd_buf, showcmd_buf + overflow);
3604     STRCAT(showcmd_buf, p);
3605 
3606     if (char_avail())
3607 	return FALSE;
3608 
3609     display_showcmd();
3610 
3611     return TRUE;
3612 }
3613 
3614     void
3615 add_to_showcmd_c(c)
3616     int		c;
3617 {
3618     if (!add_to_showcmd(c))
3619 	setcursor();
3620 }
3621 
3622 /*
3623  * Delete 'len' characters from the end of the shown command.
3624  */
3625     static void
3626 del_from_showcmd(len)
3627     int	    len;
3628 {
3629     int	    old_len;
3630 
3631     if (!p_sc)
3632 	return;
3633 
3634     old_len = (int)STRLEN(showcmd_buf);
3635     if (len > old_len)
3636 	len = old_len;
3637     showcmd_buf[old_len - len] = NUL;
3638 
3639     if (!char_avail())
3640 	display_showcmd();
3641 }
3642 
3643 /*
3644  * push_showcmd() and pop_showcmd() are used when waiting for the user to type
3645  * something and there is a partial mapping.
3646  */
3647     void
3648 push_showcmd()
3649 {
3650     if (p_sc)
3651 	STRCPY(old_showcmd_buf, showcmd_buf);
3652 }
3653 
3654     void
3655 pop_showcmd()
3656 {
3657     if (!p_sc)
3658 	return;
3659 
3660     STRCPY(showcmd_buf, old_showcmd_buf);
3661 
3662     display_showcmd();
3663 }
3664 
3665     static void
3666 display_showcmd()
3667 {
3668     int	    len;
3669 
3670     cursor_off();
3671 
3672     len = (int)STRLEN(showcmd_buf);
3673     if (len == 0)
3674 	showcmd_is_clear = TRUE;
3675     else
3676     {
3677 	screen_puts(showcmd_buf, (int)Rows - 1, sc_col, 0);
3678 	showcmd_is_clear = FALSE;
3679     }
3680 
3681     /*
3682      * clear the rest of an old message by outputing up to SHOWCMD_COLS spaces
3683      */
3684     screen_puts((char_u *)"          " + len, (int)Rows - 1, sc_col + len, 0);
3685 
3686     setcursor();	    /* put cursor back where it belongs */
3687 }
3688 #endif
3689 
3690 #ifdef FEAT_SCROLLBIND
3691 /*
3692  * When "check" is FALSE, prepare for commands that scroll the window.
3693  * When "check" is TRUE, take care of scroll-binding after the window has
3694  * scrolled.  Called from normal_cmd() and edit().
3695  */
3696     void
3697 do_check_scrollbind(check)
3698     int		check;
3699 {
3700     static win_T	*old_curwin = NULL;
3701     static linenr_T	old_topline = 0;
3702 #ifdef FEAT_DIFF
3703     static int		old_topfill = 0;
3704 #endif
3705     static buf_T	*old_buf = NULL;
3706     static colnr_T	old_leftcol = 0;
3707 
3708     if (check && curwin->w_p_scb)
3709     {
3710 	/* If a ":syncbind" command was just used, don't scroll, only reset
3711 	 * the values. */
3712 	if (did_syncbind)
3713 	    did_syncbind = FALSE;
3714 	else if (curwin == old_curwin)
3715 	{
3716 	    /*
3717 	     * Synchronize other windows, as necessary according to
3718 	     * 'scrollbind'.  Don't do this after an ":edit" command, except
3719 	     * when 'diff' is set.
3720 	     */
3721 	    if ((curwin->w_buffer == old_buf
3722 #ifdef FEAT_DIFF
3723 			|| curwin->w_p_diff
3724 #endif
3725 		)
3726 		&& (curwin->w_topline != old_topline
3727 #ifdef FEAT_DIFF
3728 			|| curwin->w_topfill != old_topfill
3729 #endif
3730 			|| curwin->w_leftcol != old_leftcol))
3731 	    {
3732 		check_scrollbind(curwin->w_topline - old_topline,
3733 			(long)(curwin->w_leftcol - old_leftcol));
3734 	    }
3735 	}
3736 	else if (vim_strchr(p_sbo, 'j')) /* jump flag set in 'scrollopt' */
3737 	{
3738 	    /*
3739 	     * When switching between windows, make sure that the relative
3740 	     * vertical offset is valid for the new window.  The relative
3741 	     * offset is invalid whenever another 'scrollbind' window has
3742 	     * scrolled to a point that would force the current window to
3743 	     * scroll past the beginning or end of its buffer.  When the
3744 	     * resync is performed, some of the other 'scrollbind' windows may
3745 	     * need to jump so that the current window's relative position is
3746 	     * visible on-screen.
3747 	     */
3748 	    check_scrollbind(curwin->w_topline - curwin->w_scbind_pos, 0L);
3749 	}
3750 	curwin->w_scbind_pos = curwin->w_topline;
3751     }
3752 
3753     old_curwin = curwin;
3754     old_topline = curwin->w_topline;
3755 #ifdef FEAT_DIFF
3756     old_topfill = curwin->w_topfill;
3757 #endif
3758     old_buf = curwin->w_buffer;
3759     old_leftcol = curwin->w_leftcol;
3760 }
3761 
3762 /*
3763  * Synchronize any windows that have "scrollbind" set, based on the
3764  * number of rows by which the current window has changed
3765  * (1998-11-02 16:21:01  R. Edward Ralston <[email protected]>)
3766  */
3767     void
3768 check_scrollbind(topline_diff, leftcol_diff)
3769     linenr_T	topline_diff;
3770     long	leftcol_diff;
3771 {
3772     int		want_ver;
3773     int		want_hor;
3774     win_T	*old_curwin = curwin;
3775     buf_T	*old_curbuf = curbuf;
3776 #ifdef FEAT_VISUAL
3777     int		old_VIsual_select = VIsual_select;
3778     int		old_VIsual_active = VIsual_active;
3779 #endif
3780     colnr_T	tgt_leftcol = curwin->w_leftcol;
3781     long	topline;
3782     long	y;
3783 
3784     /*
3785      * check 'scrollopt' string for vertical and horizontal scroll options
3786      */
3787     want_ver = (vim_strchr(p_sbo, 'v') && topline_diff != 0);
3788 #ifdef FEAT_DIFF
3789     want_ver |= old_curwin->w_p_diff;
3790 #endif
3791     want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || topline_diff != 0));
3792 
3793     /*
3794      * loop through the scrollbound windows and scroll accordingly
3795      */
3796 #ifdef FEAT_VISUAL
3797     VIsual_select = VIsual_active = 0;
3798 #endif
3799     for (curwin = firstwin; curwin; curwin = curwin->w_next)
3800     {
3801 	curbuf = curwin->w_buffer;
3802 	/* skip original window  and windows with 'noscrollbind' */
3803 	if (curwin != old_curwin && curwin->w_p_scb)
3804 	{
3805 	    /*
3806 	     * do the vertical scroll
3807 	     */
3808 	    if (want_ver)
3809 	    {
3810 #ifdef FEAT_DIFF
3811 		if (old_curwin->w_p_diff && curwin->w_p_diff)
3812 		{
3813 		    diff_set_topline(old_curwin, curwin);
3814 		}
3815 		else
3816 #endif
3817 		{
3818 		    curwin->w_scbind_pos += topline_diff;
3819 		    topline = curwin->w_scbind_pos;
3820 		    if (topline > curbuf->b_ml.ml_line_count)
3821 			topline = curbuf->b_ml.ml_line_count;
3822 		    if (topline < 1)
3823 			topline = 1;
3824 
3825 		    y = topline - curwin->w_topline;
3826 		    if (y > 0)
3827 			scrollup(y, FALSE);
3828 		    else
3829 			scrolldown(-y, FALSE);
3830 		}
3831 
3832 		redraw_later(VALID);
3833 		cursor_correct();
3834 #ifdef FEAT_WINDOWS
3835 		curwin->w_redr_status = TRUE;
3836 #endif
3837 	    }
3838 
3839 	    /*
3840 	     * do the horizontal scroll
3841 	     */
3842 	    if (want_hor && curwin->w_leftcol != tgt_leftcol)
3843 	    {
3844 		curwin->w_leftcol = tgt_leftcol;
3845 		leftcol_changed();
3846 	    }
3847 	}
3848     }
3849 
3850     /*
3851      * reset current-window
3852      */
3853 #ifdef FEAT_VISUAL
3854     VIsual_select = old_VIsual_select;
3855     VIsual_active = old_VIsual_active;
3856 #endif
3857     curwin = old_curwin;
3858     curbuf = old_curbuf;
3859 }
3860 #endif /* #ifdef FEAT_SCROLLBIND */
3861 
3862 /*
3863  * Command character that's ignored.
3864  * Used for CTRL-Q and CTRL-S to avoid problems with terminals that use
3865  * xon/xoff
3866  */
3867 /*ARGSUSED */
3868     static void
3869 nv_ignore(cap)
3870     cmdarg_T	*cap;
3871 {
3872     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
3873 }
3874 
3875 /*
3876  * Command character doesn't exist.
3877  */
3878     static void
3879 nv_error(cap)
3880     cmdarg_T	*cap;
3881 {
3882     clearopbeep(cap->oap);
3883 }
3884 
3885 /*
3886  * <Help> and <F1> commands.
3887  */
3888     static void
3889 nv_help(cap)
3890     cmdarg_T	*cap;
3891 {
3892     if (!checkclearopq(cap->oap))
3893 	ex_help(NULL);
3894 }
3895 
3896 /*
3897  * CTRL-A and CTRL-X: Add or subtract from letter or number under cursor.
3898  */
3899     static void
3900 nv_addsub(cap)
3901     cmdarg_T	*cap;
3902 {
3903     if (!checkclearopq(cap->oap)
3904 	    && do_addsub((int)cap->cmdchar, cap->count1) == OK)
3905 	prep_redo_cmd(cap);
3906 }
3907 
3908 /*
3909  * CTRL-F, CTRL-B, etc: Scroll page up or down.
3910  */
3911     static void
3912 nv_page(cap)
3913     cmdarg_T	*cap;
3914 {
3915     if (!checkclearop(cap->oap))
3916 	(void)onepage(cap->arg, cap->count1);
3917 }
3918 
3919 /*
3920  * Implementation of "gd" and "gD" command.
3921  */
3922     static void
3923 nv_gd(oap, nchar)
3924     oparg_T   *oap;
3925     int	    nchar;
3926 {
3927     int		len;
3928     char_u	*pat;
3929     pos_T	old_pos;
3930     int		t;
3931     int		save_p_ws;
3932     int		save_p_scs;
3933     char_u	*ptr;
3934 
3935     if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
3936 	    || (pat = alloc(len + 7)) == NULL)
3937     {
3938 	clearopbeep(oap);
3939 	return;
3940     }
3941 
3942     /* Put "\V" before the pattern to avoid that the special meaning of "."
3943      * and "~" causes trouble. */
3944     sprintf((char *)pat, vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
3945 								    len, ptr);
3946     old_pos = curwin->w_cursor;
3947     save_p_ws = p_ws;
3948     save_p_scs = p_scs;
3949     p_ws = FALSE;	/* don't wrap around end of file now */
3950     p_scs = FALSE;	/* don't switch ignorecase off now */
3951 
3952     /*
3953      * With "gD" go to line 1.
3954      * With "gd" Search back for the start of the current function, then go
3955      * back until a blank line.  If this fails go to line 1.
3956      */
3957     if (nchar == 'D' || !findpar(oap, BACKWARD, 1L, '{', FALSE))
3958     {
3959 	setpcmark();			/* Set in findpar() otherwise */
3960 	curwin->w_cursor.lnum = 1;
3961     }
3962     else
3963     {
3964 	while (curwin->w_cursor.lnum > 1 && *skipwhite(ml_get_curline()) != NUL)
3965 	    --curwin->w_cursor.lnum;
3966     }
3967     curwin->w_cursor.col = 0;
3968 
3969     /* Search forward for the identifier, ignore comment lines. */
3970     while ((t = searchit(curwin, curbuf, &curwin->w_cursor, FORWARD, pat, 1L, 0,
3971 							     RE_LAST)) != FAIL
3972 #ifdef FEAT_COMMENTS
3973 	    && get_leader_len(ml_get_curline(), NULL, FALSE) > 0
3974 #endif
3975 	    && old_pos.lnum > curwin->w_cursor.lnum)
3976     {
3977 	/* Ignore this line, continue at start of next line. */
3978 	++curwin->w_cursor.lnum;
3979 	curwin->w_cursor.col = 0;
3980     }
3981     if (t == FAIL || old_pos.lnum <= curwin->w_cursor.lnum)
3982     {
3983 	clearopbeep(oap);
3984 	curwin->w_cursor = old_pos;
3985     }
3986     else
3987     {
3988 	curwin->w_set_curswant = TRUE;
3989 #ifdef FEAT_FOLDING
3990 	if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
3991 	    foldOpenCursor();
3992 #endif
3993 	/* "n" searches forward now */
3994 	reset_search_dir();
3995     }
3996 
3997     vim_free(pat);
3998     p_ws = save_p_ws;
3999     p_scs = save_p_scs;
4000 }
4001 
4002 /*
4003  * Move 'dist' lines in direction 'dir', counting lines by *screen*
4004  * lines rather than lines in the file.
4005  * 'dist' must be positive.
4006  *
4007  * Return OK if able to move cursor, FAIL otherwise.
4008  */
4009     static int
4010 nv_screengo(oap, dir, dist)
4011     oparg_T	*oap;
4012     int		dir;
4013     long	dist;
4014 {
4015     int		linelen = linetabsize(ml_get_curline());
4016     int		retval = OK;
4017     int		atend = FALSE;
4018     int		n;
4019     int		col_off1;	/* margin offset for first screen line */
4020     int		col_off2;	/* margin offset for wrapped screen line */
4021     int		width1;		/* text width for first screen line */
4022     int		width2;		/* test width for wrapped screen line */
4023 
4024     oap->motion_type = MCHAR;
4025     oap->inclusive = FALSE;
4026 
4027     col_off1 = curwin_col_off();
4028     col_off2 = col_off1 - curwin_col_off2();
4029     width1 = W_WIDTH(curwin) - col_off1;
4030     width2 = W_WIDTH(curwin) - col_off2;
4031 
4032 #ifdef FEAT_VERTSPLIT
4033     if (curwin->w_width != 0)
4034     {
4035 #endif
4036       /*
4037        * Instead of sticking at the last character of the buffer line we
4038        * try to stick in the last column of the screen.
4039        */
4040       if (curwin->w_curswant == MAXCOL)
4041       {
4042 	atend = TRUE;
4043 	validate_virtcol();
4044 	if (width1 <= 0)
4045 	    curwin->w_curswant = 0;
4046 	else
4047 	{
4048 	    curwin->w_curswant = width1 - 1;
4049 	    if (curwin->w_virtcol > curwin->w_curswant)
4050 		curwin->w_curswant += ((curwin->w_virtcol
4051 			     - curwin->w_curswant - 1) / width2 + 1) * width2;
4052 	}
4053       }
4054       else
4055       {
4056 	if (linelen > width1)
4057 	    n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4058 	else
4059 	    n = width1;
4060 	if (curwin->w_curswant > (colnr_T)n + 1)
4061 	    curwin->w_curswant -= ((curwin->w_curswant - n) / width2 + 1)
4062 								     * width2;
4063       }
4064 
4065       while (dist--)
4066       {
4067 	if (dir == BACKWARD)
4068 	{
4069 	    if ((long)curwin->w_curswant >= width2)
4070 		/* move back within line */
4071 		curwin->w_curswant -= width2;
4072 	    else
4073 	    {
4074 		/* to previous line */
4075 		if (curwin->w_cursor.lnum == 1)
4076 		{
4077 		    retval = FAIL;
4078 		    break;
4079 		}
4080 		--curwin->w_cursor.lnum;
4081 #ifdef FEAT_FOLDING
4082 		/* Move to the start of a closed fold.  Don't do that when
4083 		 * 'foldopen' contains "all": it will open in a moment. */
4084 		if (!(fdo_flags & FDO_ALL))
4085 		    (void)hasFolding(curwin->w_cursor.lnum,
4086 						&curwin->w_cursor.lnum, NULL);
4087 #endif
4088 		linelen = linetabsize(ml_get_curline());
4089 		if (linelen > width1)
4090 		    curwin->w_curswant += (((linelen - width1 - 1) / width2)
4091 								+ 1) * width2;
4092 	    }
4093 	}
4094 	else /* dir == FORWARD */
4095 	{
4096 	    if (linelen > width1)
4097 		n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4098 	    else
4099 		n = width1;
4100 	    if (curwin->w_curswant + width2 < (colnr_T)n)
4101 		/* move forward within line */
4102 		curwin->w_curswant += width2;
4103 	    else
4104 	    {
4105 		/* to next line */
4106 #ifdef FEAT_FOLDING
4107 		/* Move to the end of a closed fold. */
4108 		(void)hasFolding(curwin->w_cursor.lnum, NULL,
4109 						      &curwin->w_cursor.lnum);
4110 #endif
4111 		if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4112 		{
4113 		    retval = FAIL;
4114 		    break;
4115 		}
4116 		curwin->w_cursor.lnum++;
4117 		curwin->w_curswant %= width2;
4118 	    }
4119 	}
4120       }
4121 #ifdef FEAT_VERTSPLIT
4122     }
4123 #endif
4124 
4125     coladvance(curwin->w_curswant);
4126 
4127 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
4128     if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
4129     {
4130 	/*
4131 	 * Check for landing on a character that got split at the end of the
4132 	 * last line.  We want to advance a screenline, not end up in the same
4133 	 * screenline or move two screenlines.
4134 	 */
4135 	validate_virtcol();
4136 	if (curwin->w_virtcol > curwin->w_curswant
4137 		&& (curwin->w_curswant < (colnr_T)width1
4138 		    ? (curwin->w_curswant > (colnr_T)width1 / 2)
4139 		    : ((curwin->w_curswant - width1) % width2
4140 						      > (colnr_T)width2 / 2)))
4141 	    --curwin->w_cursor.col;
4142     }
4143 #endif
4144 
4145     if (atend)
4146 	curwin->w_curswant = MAXCOL;	    /* stick in the last column */
4147 
4148     return retval;
4149 }
4150 
4151 #ifdef FEAT_MOUSE
4152 /*
4153  * Mouse scroll wheel: Default action is to scroll three lines, or one page
4154  * when Shift or Ctrl is used.
4155  * K_MOUSEUP (cap->arg == TRUE) or K_MOUSEDOWN (cap->arg == FALSE)
4156  */
4157     static void
4158 nv_mousescroll(cap)
4159     cmdarg_T	*cap;
4160 {
4161 # if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
4162     win_T *old_curwin;
4163 
4164     old_curwin = curwin;
4165 
4166     /* Currently we only get the mouse coordinates in the GUI. */
4167     if (gui.in_use && mouse_row >= 0 && mouse_col >= 0)
4168     {
4169 	int row, col;
4170 
4171 	row = mouse_row;
4172 	col = mouse_col;
4173 
4174 	/* find the window at the pointer coordinates */
4175 	curwin = mouse_find_win(&row, &col);
4176 	curbuf = curwin->w_buffer;
4177     }
4178 # endif
4179 
4180     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4181     {
4182 	(void)onepage(cap->arg ? FORWARD : BACKWARD, 1L);
4183     }
4184     else
4185     {
4186 	cap->count1 = 3;
4187 	cap->count0 = 3;
4188 	nv_scroll_line(cap);
4189     }
4190 
4191 # if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
4192     curwin->w_redr_status = TRUE;
4193 
4194     curwin = old_curwin;
4195     curbuf = curwin->w_buffer;
4196 # endif
4197 }
4198 
4199 /*
4200  * Mouse clicks and drags.
4201  */
4202     static void
4203 nv_mouse(cap)
4204     cmdarg_T	*cap;
4205 {
4206     (void)do_mouse(cap->oap, cap->cmdchar, BACKWARD, cap->count1, 0);
4207 }
4208 #endif
4209 
4210 /*
4211  * Handle CTRL-E and CTRL-Y commands: scroll a line up or down.
4212  * cap->arg must be TRUE for CTRL-E.
4213  */
4214     static void
4215 nv_scroll_line(cap)
4216     cmdarg_T	*cap;
4217 {
4218     if (!checkclearop(cap->oap))
4219 	scroll_redraw(cap->arg, cap->count1);
4220 }
4221 
4222 /*
4223  * Scroll "count" lines up or down, and redraw.
4224  */
4225     void
4226 scroll_redraw(up, count)
4227     int		up;
4228     long	count;
4229 {
4230     linenr_T	prev_topline = curwin->w_topline;
4231 #ifdef FEAT_DIFF
4232     int		prev_topfill = curwin->w_topfill;
4233 #endif
4234     linenr_T	prev_lnum = curwin->w_cursor.lnum;
4235 
4236     if (up)
4237 	scrollup(count, TRUE);
4238     else
4239 	scrolldown(count, TRUE);
4240     if (p_so)
4241     {
4242 	/* Adjust the cursor position for 'scrolloff'.  Mark w_topline as
4243 	 * valid, otherwise the screen jumps back at the end of the file. */
4244 	cursor_correct();
4245 	check_cursor_moved(curwin);
4246 	curwin->w_valid |= VALID_TOPLINE;
4247 
4248 	/* If moved back to where we were, at least move the cursor, otherwise
4249 	 * we get stuck at one position.  Don't move the cursor up if the
4250 	 * first line of the buffer is already on the screen */
4251 	while (curwin->w_topline == prev_topline
4252 #ifdef FEAT_DIFF
4253 		&& curwin->w_topfill == prev_topfill
4254 #endif
4255 		)
4256 	{
4257 	    if (up)
4258 	    {
4259 		if (curwin->w_cursor.lnum > prev_lnum
4260 			|| cursor_down(1L, FALSE) == FAIL)
4261 		    break;
4262 	    }
4263 	    else
4264 	    {
4265 		if (curwin->w_cursor.lnum < prev_lnum
4266 			|| prev_topline == 1L
4267 			|| cursor_up(1L, FALSE) == FAIL)
4268 		    break;
4269 	    }
4270 	    /* Mark w_topline as valid, otherwise the screen jumps back at the
4271 	     * end of the file. */
4272 	    check_cursor_moved(curwin);
4273 	    curwin->w_valid |= VALID_TOPLINE;
4274 	}
4275     }
4276     if (curwin->w_cursor.lnum != prev_lnum)
4277 	coladvance(curwin->w_curswant);
4278     redraw_later(VALID);
4279 }
4280 
4281 /*
4282  * Commands that start with "z".
4283  */
4284     static void
4285 nv_zet(cap)
4286     cmdarg_T  *cap;
4287 {
4288     long	n;
4289     colnr_T	col;
4290     int		nchar = cap->nchar;
4291 #ifdef FEAT_FOLDING
4292     long	old_fdl = curwin->w_p_fdl;
4293     int		old_fen = curwin->w_p_fen;
4294 #endif
4295 
4296     if (VIM_ISDIGIT(nchar))
4297     {
4298 	/*
4299 	 * "z123{nchar}": edit the count before obtaining {nchar}
4300 	 */
4301 	if (checkclearop(cap->oap))
4302 	    return;
4303 	n = nchar - '0';
4304 	for (;;)
4305 	{
4306 #ifdef USE_ON_FLY_SCROLL
4307 	    dont_scroll = TRUE;		/* disallow scrolling here */
4308 #endif
4309 	    ++no_mapping;
4310 	    ++allow_keys;   /* no mapping for nchar, but allow key codes */
4311 	    nchar = safe_vgetc();
4312 #ifdef FEAT_LANGMAP
4313 	    LANGMAP_ADJUST(nchar, TRUE);
4314 #endif
4315 	    --no_mapping;
4316 	    --allow_keys;
4317 #ifdef FEAT_CMDL_INFO
4318 	    (void)add_to_showcmd(nchar);
4319 #endif
4320 	    if (nchar == K_DEL || nchar == K_KDEL)
4321 		n /= 10;
4322 	    else if (VIM_ISDIGIT(nchar))
4323 		n = n * 10 + (nchar - '0');
4324 	    else if (nchar == CAR)
4325 	    {
4326 #ifdef FEAT_GUI
4327 		need_mouse_correct = TRUE;
4328 #endif
4329 		win_setheight((int)n);
4330 		break;
4331 	    }
4332 	    else if (nchar == 'l'
4333 		    || nchar == 'h'
4334 		    || nchar == K_LEFT
4335 		    || nchar == K_RIGHT)
4336 	    {
4337 		cap->count1 = n ? n * cap->count1 : cap->count1;
4338 		goto dozet;
4339 	    }
4340 	    else
4341 	    {
4342 		clearopbeep(cap->oap);
4343 		break;
4344 	    }
4345 	}
4346 	cap->oap->op_type = OP_NOP;
4347 	return;
4348     }
4349 
4350 dozet:
4351     if (
4352 #ifdef FEAT_FOLDING
4353 	    /* "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
4354 	     * and "zC" only in Visual mode.  "zj" and "zk" are motion
4355 	     * commands. */
4356 	    cap->nchar != 'f' && cap->nchar != 'F'
4357 	    && !(VIsual_active && vim_strchr((char_u *)"dcCoO", cap->nchar))
4358 	    && cap->nchar != 'j' && cap->nchar != 'k'
4359 	    &&
4360 #endif
4361 	    checkclearop(cap->oap))
4362 	return;
4363 
4364     /*
4365      * For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
4366      * If line number given, set cursor.
4367      */
4368     if ((vim_strchr((char_u *)"+\r\nt.z^-b", nchar) != NULL)
4369 	    && cap->count0
4370 	    && cap->count0 != curwin->w_cursor.lnum)
4371     {
4372 	setpcmark();
4373 	if (cap->count0 > curbuf->b_ml.ml_line_count)
4374 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4375 	else
4376 	    curwin->w_cursor.lnum = cap->count0;
4377 	check_cursor_col();
4378     }
4379 
4380     switch (nchar)
4381     {
4382 		/* "z+", "z<CR>" and "zt": put cursor at top of screen */
4383     case '+':
4384 		if (cap->count0 == 0)
4385 		{
4386 		    /* No count given: put cursor at the line below screen */
4387 		    validate_botline();	/* make sure w_botline is valid */
4388 		    if (curwin->w_botline > curbuf->b_ml.ml_line_count)
4389 			curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4390 		    else
4391 			curwin->w_cursor.lnum = curwin->w_botline;
4392 		}
4393 		/* FALLTHROUGH */
4394     case NL:
4395     case CAR:
4396     case K_KENTER:
4397 		beginline(BL_WHITE | BL_FIX);
4398 		/* FALLTHROUGH */
4399 
4400     case 't':	scroll_cursor_top(0, TRUE);
4401 		redraw_later(VALID);
4402 		break;
4403 
4404 		/* "z." and "zz": put cursor in middle of screen */
4405     case '.':	beginline(BL_WHITE | BL_FIX);
4406 		/* FALLTHROUGH */
4407 
4408     case 'z':	scroll_cursor_halfway(TRUE);
4409 		redraw_later(VALID);
4410 		break;
4411 
4412 		/* "z^", "z-" and "zb": put cursor at bottom of screen */
4413     case '^':	/* Strange Vi behavior: <count>z^ finds line at top of window
4414 		 * when <count> is at bottom of window, and puts that one at
4415 		 * bottom of window. */
4416 		if (cap->count0 != 0)
4417 		{
4418 		    scroll_cursor_bot(0, TRUE);
4419 		    curwin->w_cursor.lnum = curwin->w_topline;
4420 		}
4421 		else if (curwin->w_topline == 1)
4422 		    curwin->w_cursor.lnum = 1;
4423 		else
4424 		    curwin->w_cursor.lnum = curwin->w_topline - 1;
4425 		/* FALLTHROUGH */
4426     case '-':
4427 		beginline(BL_WHITE | BL_FIX);
4428 		/* FALLTHROUGH */
4429 
4430     case 'b':	scroll_cursor_bot(0, TRUE);
4431 		redraw_later(VALID);
4432 		break;
4433 
4434 		/* "zH" - scroll screen right half-page */
4435     case 'H':
4436 		cap->count1 *= W_WIDTH(curwin) / 2;
4437 		/* FALLTHROUGH */
4438 
4439 		/* "zh" - scroll screen to the right */
4440     case 'h':
4441     case K_LEFT:
4442 		if (!curwin->w_p_wrap)
4443 		{
4444 		    if ((colnr_T)cap->count1 > curwin->w_leftcol)
4445 			curwin->w_leftcol = 0;
4446 		    else
4447 			curwin->w_leftcol -= (colnr_T)cap->count1;
4448 		    leftcol_changed();
4449 		}
4450 		break;
4451 
4452 		/* "zL" - scroll screen left half-page */
4453     case 'L':	cap->count1 *= W_WIDTH(curwin) / 2;
4454 		/* FALLTHROUGH */
4455 
4456 		/* "zl" - scroll screen to the left */
4457     case 'l':
4458     case K_RIGHT:
4459 		if (!curwin->w_p_wrap)
4460 		{
4461 		    /* scroll the window left */
4462 		    curwin->w_leftcol += (colnr_T)cap->count1;
4463 		    leftcol_changed();
4464 		}
4465 		break;
4466 
4467 		/* "zs" - scroll screen, cursor at the start */
4468     case 's':	if (!curwin->w_p_wrap)
4469 		{
4470 #ifdef FEAT_FOLDING
4471 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4472 			col = 0;	/* like the cursor is in col 0 */
4473 		    else
4474 #endif
4475 		    getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
4476 		    if ((long)col > p_siso)
4477 			col -= p_siso;
4478 		    else
4479 			col = 0;
4480 		    if (curwin->w_leftcol != col)
4481 		    {
4482 			curwin->w_leftcol = col;
4483 			redraw_later(NOT_VALID);
4484 		    }
4485 		}
4486 		break;
4487 
4488 		/* "ze" - scroll screen, cursor at the end */
4489     case 'e':	if (!curwin->w_p_wrap)
4490 		{
4491 #ifdef FEAT_FOLDING
4492 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4493 			col = 0;	/* like the cursor is in col 0 */
4494 		    else
4495 #endif
4496 		    getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
4497 		    n = W_WIDTH(curwin) - curwin_col_off();
4498 		    if ((long)col + p_siso < n)
4499 			col = 0;
4500 		    else
4501 			col = col + p_siso - n + 1;
4502 		    if (curwin->w_leftcol != col)
4503 		    {
4504 			curwin->w_leftcol = col;
4505 			redraw_later(NOT_VALID);
4506 		    }
4507 		}
4508 		break;
4509 
4510 #ifdef FEAT_FOLDING
4511 		/* "zF": create fold command */
4512 		/* "zf": create fold operator */
4513     case 'F':
4514     case 'f':   if (foldManualAllowed(TRUE))
4515 		{
4516 		    cap->nchar = 'f';
4517 		    nv_operator(cap);
4518 		    curwin->w_p_fen = TRUE;
4519 
4520 		    /* "zF" is like "zfzf" */
4521 		    if (nchar == 'F' && cap->oap->op_type == OP_FOLD)
4522 		    {
4523 			nv_operator(cap);
4524 			finish_op = TRUE;
4525 		    }
4526 		}
4527 		else
4528 		    clearopbeep(cap->oap);
4529 		break;
4530 
4531 		/* "zd": delete fold at cursor */
4532 		/* "zD": delete fold at cursor recursively */
4533     case 'd':
4534     case 'D':	if (foldManualAllowed(FALSE))
4535 		{
4536 		    if (VIsual_active)
4537 			nv_operator(cap);
4538 		    else
4539 			deleteFold(curwin->w_cursor.lnum,
4540 				  curwin->w_cursor.lnum, nchar == 'D', FALSE);
4541 		}
4542 		break;
4543 
4544 		/* "zE": erease all folds */
4545     case 'E':	if (foldmethodIsManual(curwin))
4546 		{
4547 		    clearFolding(curwin);
4548 		    changed_window_setting();
4549 		}
4550 		else if (foldmethodIsMarker(curwin))
4551 		    deleteFold((linenr_T)1, curbuf->b_ml.ml_line_count,
4552 								 TRUE, FALSE);
4553 		else
4554 		    EMSG(_("E352: Cannot erase folds with current 'foldmethod'"));
4555 		break;
4556 
4557 		/* "zn": fold none: reset 'foldenable' */
4558     case 'n':	curwin->w_p_fen = FALSE;
4559 		break;
4560 
4561 		/* "zN": fold Normal: set 'foldenable' */
4562     case 'N':	curwin->w_p_fen = TRUE;
4563 		break;
4564 
4565 		/* "zi": invert folding: toggle 'foldenable' */
4566     case 'i':	curwin->w_p_fen = !curwin->w_p_fen;
4567 		break;
4568 
4569 		/* "za": open closed fold or close open fold at cursor */
4570     case 'a':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4571 		    openFold(curwin->w_cursor.lnum, cap->count1);
4572 		else
4573 		{
4574 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4575 		    curwin->w_p_fen = TRUE;
4576 		}
4577 		break;
4578 
4579 		/* "zA": open fold at cursor recursively */
4580     case 'A':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4581 		    openFoldRecurse(curwin->w_cursor.lnum);
4582 		else
4583 		{
4584 		    closeFoldRecurse(curwin->w_cursor.lnum);
4585 		    curwin->w_p_fen = TRUE;
4586 		}
4587 		break;
4588 
4589 		/* "zo": open fold at cursor or Visual area */
4590     case 'o':	if (VIsual_active)
4591 		    nv_operator(cap);
4592 		else
4593 		    openFold(curwin->w_cursor.lnum, cap->count1);
4594 		break;
4595 
4596 		/* "zO": open fold recursively */
4597     case 'O':	if (VIsual_active)
4598 		    nv_operator(cap);
4599 		else
4600 		    openFoldRecurse(curwin->w_cursor.lnum);
4601 		break;
4602 
4603 		/* "zc": close fold at cursor or Visual area */
4604     case 'c':	if (VIsual_active)
4605 		    nv_operator(cap);
4606 		else
4607 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4608 		curwin->w_p_fen = TRUE;
4609 		break;
4610 
4611 		/* "zC": close fold recursively */
4612     case 'C':	if (VIsual_active)
4613 		    nv_operator(cap);
4614 		else
4615 		    closeFoldRecurse(curwin->w_cursor.lnum);
4616 		curwin->w_p_fen = TRUE;
4617 		break;
4618 
4619 		/* "zv": open folds at the cursor */
4620     case 'v':	foldOpenCursor();
4621 		break;
4622 
4623 		/* "zx": re-apply 'foldlevel' and open folds at the cursor */
4624     case 'x':	curwin->w_p_fen = TRUE;
4625 		newFoldLevel();		/* update right now */
4626 		foldOpenCursor();
4627 		break;
4628 
4629 		/* "zX": undo manual opens/closes, re-apply 'foldlevel' */
4630     case 'X':	curwin->w_p_fen = TRUE;
4631 		old_fdl = -1;		/* force an update */
4632 		break;
4633 
4634 		/* "zm": fold more */
4635     case 'm':	if (curwin->w_p_fdl > 0)
4636 		    --curwin->w_p_fdl;
4637 		old_fdl = -1;		/* force an update */
4638 		curwin->w_p_fen = TRUE;
4639 		break;
4640 
4641 		/* "zM": close all folds */
4642     case 'M':	curwin->w_p_fdl = 0;
4643 		old_fdl = -1;		/* force an update */
4644 		curwin->w_p_fen = TRUE;
4645 		break;
4646 
4647 		/* "zr": reduce folding */
4648     case 'r':	++curwin->w_p_fdl;
4649 		break;
4650 
4651 		/* "zR": open all folds */
4652     case 'R':	curwin->w_p_fdl = getDeepestNesting();
4653 		old_fdl = -1;		/* force an update */
4654 		break;
4655 
4656     case 'j':	/* "zj" move to next fold downwards */
4657     case 'k':	/* "zk" move to next fold upwards */
4658 		if (foldMoveTo(TRUE, nchar == 'j' ? FORWARD : BACKWARD,
4659 							  cap->count1) == FAIL)
4660 		    clearopbeep(cap->oap);
4661 		break;
4662 
4663 #endif /* FEAT_FOLDING */
4664 
4665 #ifdef FEAT_SYN_HL
4666     case 'g':	/* "zg": add good word to word list */
4667     case 'w':	/* "zw": add wrong word to word list */
4668     case 'G':	/* "zG": add good word to temp word list */
4669     case 'W':	/* "zW": add wrong word to temp word list */
4670 		{
4671 		    char_u  *ptr = NULL;
4672 		    int	    len;
4673 
4674 		    if (checkclearop(cap->oap))
4675 			break;
4676 # ifdef FEAT_VISUAL
4677 		    if (VIsual_active && get_visual_text(cap, &ptr, &len)
4678 								      == FAIL)
4679 			return;
4680 # endif
4681 		    if (ptr == NULL)
4682 		    {
4683 			pos_T	pos = curwin->w_cursor;
4684 			int	attr;
4685 
4686 			/* Find bad word under the cursor. */
4687 			len = spell_move_to(curwin, FORWARD, TRUE, TRUE, &attr);
4688 			if (len != 0 && curwin->w_cursor.col <= pos.col)
4689 			    ptr = ml_get_pos(&curwin->w_cursor);
4690 			curwin->w_cursor = pos;
4691 		    }
4692 
4693 		    if (ptr == NULL && (len = find_ident_under_cursor(&ptr,
4694 							    FIND_IDENT)) == 0)
4695 			return;
4696 		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W',
4697 					    (nchar == 'G' || nchar == 'W') ? 0
4698 							  : (int)cap->count1);
4699 		}
4700 		break;
4701 
4702     case '?':	/* "z?": suggestions for a badly spelled word  */
4703 		if (!checkclearopq(cap->oap))
4704 		    spell_suggest((int)cap->count0);
4705 		break;
4706 #endif
4707 
4708     default:	clearopbeep(cap->oap);
4709     }
4710 
4711 #ifdef FEAT_FOLDING
4712     /* Redraw when 'foldenable' changed */
4713     if (old_fen != curwin->w_p_fen)
4714     {
4715 # ifdef FEAT_DIFF
4716 	win_T	    *wp;
4717 
4718 	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
4719 	{
4720 	    /* Adjust 'foldenable' in diff-synced windows. */
4721 	    FOR_ALL_WINDOWS(wp)
4722 	    {
4723 		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
4724 		{
4725 		    wp->w_p_fen = curwin->w_p_fen;
4726 		    changed_window_setting_win(wp);
4727 		}
4728 	    }
4729 	}
4730 # endif
4731 	changed_window_setting();
4732     }
4733 
4734     /* Redraw when 'foldlevel' changed. */
4735     if (old_fdl != curwin->w_p_fdl)
4736 	newFoldLevel();
4737 #endif
4738 }
4739 
4740 #ifdef FEAT_GUI
4741 /*
4742  * Vertical scrollbar movement.
4743  */
4744     static void
4745 nv_ver_scrollbar(cap)
4746     cmdarg_T	*cap;
4747 {
4748     if (cap->oap->op_type != OP_NOP)
4749 	clearopbeep(cap->oap);
4750 
4751     /* Even if an operator was pending, we still want to scroll */
4752     gui_do_scroll();
4753 }
4754 
4755 /*
4756  * Horizontal scrollbar movement.
4757  */
4758     static void
4759 nv_hor_scrollbar(cap)
4760     cmdarg_T	*cap;
4761 {
4762     if (cap->oap->op_type != OP_NOP)
4763 	clearopbeep(cap->oap);
4764 
4765     /* Even if an operator was pending, we still want to scroll */
4766     gui_do_horiz_scroll();
4767 }
4768 #endif
4769 
4770 /*
4771  * "Q" command.
4772  */
4773     static void
4774 nv_exmode(cap)
4775     cmdarg_T	*cap;
4776 {
4777     /*
4778      * Ignore 'Q' in Visual mode, just give a beep.
4779      */
4780 #ifdef FEAT_VISUAL
4781     if (VIsual_active)
4782 	vim_beep();
4783     else
4784 #endif
4785 	if (!checkclearop(cap->oap))
4786 	do_exmode(FALSE);
4787 }
4788 
4789 /*
4790  * Handle a ":" command.
4791  */
4792     static void
4793 nv_colon(cap)
4794     cmdarg_T  *cap;
4795 {
4796     int	    old_p_im;
4797 
4798 #ifdef FEAT_VISUAL
4799     if (VIsual_active)
4800 	nv_operator(cap);
4801     else
4802 #endif
4803     {
4804 	if (cap->oap->op_type != OP_NOP)
4805 	{
4806 	    /* Using ":" as a movement is characterwise exclusive. */
4807 	    cap->oap->motion_type = MCHAR;
4808 	    cap->oap->inclusive = FALSE;
4809 	}
4810 	else if (cap->count0)
4811 	{
4812 	    /* translate "count:" into ":.,.+(count - 1)" */
4813 	    stuffcharReadbuff('.');
4814 	    if (cap->count0 > 1)
4815 	    {
4816 		stuffReadbuff((char_u *)",.+");
4817 		stuffnumReadbuff((long)cap->count0 - 1L);
4818 	    }
4819 	}
4820 
4821 	/* When typing, don't type below an old message */
4822 	if (KeyTyped)
4823 	    compute_cmdrow();
4824 
4825 	old_p_im = p_im;
4826 
4827 	/* get a command line and execute it */
4828 	do_cmdline(NULL, getexline, NULL,
4829 			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
4830 
4831 	/* If 'insertmode' changed, enter or exit Insert mode */
4832 	if (p_im != old_p_im)
4833 	{
4834 	    if (p_im)
4835 		restart_edit = 'i';
4836 	    else
4837 		restart_edit = 0;
4838 	}
4839 
4840 	/* The start of the operator may have become invalid by the Ex
4841 	 * command. */
4842 	if (cap->oap->op_type != OP_NOP
4843 		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
4844 		    || cap->oap->start.col >
4845 					 STRLEN(ml_get(cap->oap->start.lnum))))
4846 	    clearopbeep(cap->oap);
4847     }
4848 }
4849 
4850 /*
4851  * Handle CTRL-G command.
4852  */
4853     static void
4854 nv_ctrlg(cap)
4855     cmdarg_T *cap;
4856 {
4857 #ifdef FEAT_VISUAL
4858     if (VIsual_active)	/* toggle Selection/Visual mode */
4859     {
4860 	VIsual_select = !VIsual_select;
4861 	showmode();
4862     }
4863     else
4864 #endif
4865 	if (!checkclearop(cap->oap))
4866 	/* print full name if count given or :cd used */
4867 	fileinfo((int)cap->count0, FALSE, TRUE);
4868 }
4869 
4870 /*
4871  * Handle CTRL-H <Backspace> command.
4872  */
4873     static void
4874 nv_ctrlh(cap)
4875     cmdarg_T *cap;
4876 {
4877 #ifdef FEAT_VISUAL
4878     if (VIsual_active && VIsual_select)
4879     {
4880 	cap->cmdchar = 'x';	/* BS key behaves like 'x' in Select mode */
4881 	v_visop(cap);
4882     }
4883     else
4884 #endif
4885 	nv_left(cap);
4886 }
4887 
4888 /*
4889  * CTRL-L: clear screen and redraw.
4890  */
4891     static void
4892 nv_clear(cap)
4893     cmdarg_T	*cap;
4894 {
4895     if (!checkclearop(cap->oap))
4896     {
4897 #if defined(__BEOS__) && !USE_THREAD_FOR_INPUT_WITH_TIMEOUT
4898 	/*
4899 	 * Right now, the BeBox doesn't seem to have an easy way to detect
4900 	 * window resizing, so we cheat and make the user detect it
4901 	 * manually with CTRL-L instead
4902 	 */
4903 	ui_get_shellsize();
4904 #endif
4905 #ifdef FEAT_SYN_HL
4906 	/* Clear all syntax states to force resyncing. */
4907 	syn_stack_free_all(curbuf);
4908 #endif
4909 	redraw_later(CLEAR);
4910     }
4911 }
4912 
4913 /*
4914  * CTRL-O: In Select mode: switch to Visual mode for one command.
4915  * Otherwise: Go to older pcmark.
4916  */
4917     static void
4918 nv_ctrlo(cap)
4919     cmdarg_T	*cap;
4920 {
4921 #ifdef FEAT_VISUAL
4922     if (VIsual_active && VIsual_select)
4923     {
4924 	VIsual_select = FALSE;
4925 	showmode();
4926 	restart_VIsual_select = 2;	/* restart Select mode later */
4927     }
4928     else
4929 #endif
4930     {
4931 	cap->count1 = -cap->count1;
4932 	nv_pcmark(cap);
4933     }
4934 }
4935 
4936 /*
4937  * CTRL-^ command, short for ":e #"
4938  */
4939     static void
4940 nv_hat(cap)
4941     cmdarg_T	*cap;
4942 {
4943     if (!checkclearopq(cap->oap))
4944 	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
4945 						GETF_SETMARK|GETF_ALT, FALSE);
4946 }
4947 
4948 /*
4949  * "Z" commands.
4950  */
4951     static void
4952 nv_Zet(cap)
4953     cmdarg_T *cap;
4954 {
4955     if (!checkclearopq(cap->oap))
4956     {
4957 	switch (cap->nchar)
4958 	{
4959 			/* "ZZ": equivalent to ":x". */
4960 	    case 'Z':	do_cmdline_cmd((char_u *)"x");
4961 			break;
4962 
4963 			/* "ZQ": equivalent to ":q!" (Elvis compatible). */
4964 	    case 'Q':	do_cmdline_cmd((char_u *)"q!");
4965 			break;
4966 
4967 	    default:	clearopbeep(cap->oap);
4968 	}
4969     }
4970 }
4971 
4972 #if defined(FEAT_WINDOWS) || defined(PROTO)
4973 /*
4974  * Call nv_ident() as if "c1" was used, with "c2" as next character.
4975  */
4976     void
4977 do_nv_ident(c1, c2)
4978     int		c1;
4979     int		c2;
4980 {
4981     oparg_T	oa;
4982     cmdarg_T	ca;
4983 
4984     clear_oparg(&oa);
4985     vim_memset(&ca, 0, sizeof(ca));
4986     ca.oap = &oa;
4987     ca.cmdchar = c1;
4988     ca.nchar = c2;
4989     nv_ident(&ca);
4990 }
4991 #endif
4992 
4993 /*
4994  * Handle the commands that use the word under the cursor.
4995  * [g] CTRL-]	:ta to current identifier
4996  * [g] 'K'	run program for current identifier
4997  * [g] '*'	/ to current identifier or string
4998  * [g] '#'	? to current identifier or string
4999  *  g  ']'	:tselect for current identifier
5000  */
5001     static void
5002 nv_ident(cap)
5003     cmdarg_T	*cap;
5004 {
5005     char_u	*ptr = NULL;
5006     char_u	*buf;
5007     char_u	*p;
5008     char_u	*kp;		/* value of 'keywordprg' */
5009     int		kp_help;	/* 'keywordprg' is ":help" */
5010     int		n = 0;		/* init for GCC */
5011     int		cmdchar;
5012     int		g_cmd;		/* "g" command */
5013     char_u	*aux_ptr;
5014     int		isman;
5015     int		isman_s;
5016 
5017     if (cap->cmdchar == 'g')	/* "g*", "g#", "g]" and "gCTRL-]" */
5018     {
5019 	cmdchar = cap->nchar;
5020 	g_cmd = TRUE;
5021     }
5022     else
5023     {
5024 	cmdchar = cap->cmdchar;
5025 	g_cmd = FALSE;
5026     }
5027 
5028     if (cmdchar == POUND)	/* the pound sign, '#' for English keyboards */
5029 	cmdchar = '#';
5030 
5031     /*
5032      * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
5033      */
5034     if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
5035     {
5036 #ifdef FEAT_VISUAL
5037 	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
5038 	    return;
5039 #endif
5040 	if (checkclearopq(cap->oap))
5041 	    return;
5042     }
5043 
5044     if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
5045 		    (cmdchar == '*' || cmdchar == '#')
5046 				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
5047     {
5048 	clearop(cap->oap);
5049 	return;
5050     }
5051 
5052     /* Allocate buffer to put the command in.  Inserting backslashes can
5053      * double the length of the word.  p_kp / curbuf->b_p_kp could be added
5054      * and some numbers. */
5055     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
5056     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
5057 						 || STRCMP(kp, ":help") == 0);
5058     buf = alloc((unsigned)(n * 2 + 30 + STRLEN(kp)));
5059     if (buf == NULL)
5060 	return;
5061     buf[0] = NUL;
5062 
5063     switch (cmdchar)
5064     {
5065 	case '*':
5066 	case '#':
5067 	    /*
5068 	     * Put cursor at start of word, makes search skip the word
5069 	     * under the cursor.
5070 	     * Call setpcmark() first, so "*``" puts the cursor back where
5071 	     * it was.
5072 	     */
5073 	    setpcmark();
5074 	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());
5075 
5076 	    if (!g_cmd && vim_iswordp(ptr))
5077 		STRCPY(buf, "\\<");
5078 	    no_smartcase = TRUE;	/* don't use 'smartcase' now */
5079 	    break;
5080 
5081 	case 'K':
5082 	    if (kp_help)
5083 		STRCPY(buf, "he! ");
5084 	    else
5085 	    {
5086 		/* When a count is given, turn it into a range.  Is this
5087 		 * really what we want? */
5088 		isman = (STRCMP(kp, "man") == 0);
5089 		isman_s = (STRCMP(kp, "man -s") == 0);
5090 		if (cap->count0 != 0 && !(isman || isman_s))
5091 		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);
5092 
5093 		STRCAT(buf, "! ");
5094 		if (cap->count0 == 0 && isman_s)
5095 		    STRCAT(buf, "man");
5096 		else
5097 		    STRCAT(buf, kp);
5098 		STRCAT(buf, " ");
5099 		if (cap->count0 != 0 && (isman || isman_s))
5100 		{
5101 		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
5102 		    STRCAT(buf, " ");
5103 		}
5104 	    }
5105 	    break;
5106 
5107 	case ']':
5108 #ifdef FEAT_CSCOPE
5109 	    if (p_cst)
5110 		STRCPY(buf, "cstag ");
5111 	    else
5112 #endif
5113 		STRCPY(buf, "ts ");
5114 	    break;
5115 
5116 	default:
5117 	    if (curbuf->b_help)
5118 		STRCPY(buf, "he! ");
5119 	    else if (g_cmd)
5120 		STRCPY(buf, "tj ");
5121 	    else
5122 		STRCPY(buf, "ta ");
5123     }
5124 
5125     /*
5126      * Now grab the chars in the identifier
5127      */
5128     if (cmdchar == '*')
5129 	aux_ptr = (char_u *)(p_magic ? "/.*~[^$\\" : "/^$\\");
5130     else if (cmdchar == '#')
5131 	aux_ptr = (char_u *)(p_magic ? "/?.*~[^$\\" : "/?^$\\");
5132     else if (cmdchar == 'K' && !kp_help)
5133 	aux_ptr = (char_u *)" \t\\\"|!";
5134     else
5135 	/* Don't escape spaces and Tabs in a tag with a backslash */
5136 	aux_ptr = (char_u *)"\\|\"";
5137 
5138     p = buf + STRLEN(buf);
5139     while (n-- > 0)
5140     {
5141 	/* put a backslash before \ and some others */
5142 	if (vim_strchr(aux_ptr, *ptr) != NULL)
5143 	    *p++ = '\\';
5144 #ifdef FEAT_MBYTE
5145 	/* When current byte is a part of multibyte character, copy all bytes
5146 	 * of that character. */
5147 	if (has_mbyte)
5148 	{
5149 	    int i;
5150 	    int len = (*mb_ptr2len)(ptr) - 1;
5151 
5152 	    for (i = 0; i < len && n >= 1; ++i, --n)
5153 		*p++ = *ptr++;
5154 	}
5155 #endif
5156 	*p++ = *ptr++;
5157     }
5158     *p = NUL;
5159 
5160     /*
5161      * Execute the command.
5162      */
5163     if (cmdchar == '*' || cmdchar == '#')
5164     {
5165 	if (!g_cmd && (
5166 #ifdef FEAT_MBYTE
5167 		has_mbyte ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr)) :
5168 #endif
5169 		vim_iswordc(ptr[-1])))
5170 	    STRCAT(buf, "\\>");
5171 #ifdef FEAT_CMDHIST
5172 	/* put pattern in search history */
5173 	add_to_history(HIST_SEARCH, buf, TRUE, NUL);
5174 #endif
5175 	normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0);
5176     }
5177     else
5178 	do_cmdline_cmd(buf);
5179 
5180     vim_free(buf);
5181 }
5182 
5183 #if defined(FEAT_VISUAL) || defined(PROTO)
5184 /*
5185  * Get visually selected text, within one line only.
5186  * Returns FAIL if more than one line selected.
5187  */
5188     int
5189 get_visual_text(cap, pp, lenp)
5190     cmdarg_T	*cap;
5191     char_u	**pp;	    /* return: start of selected text */
5192     int		*lenp;	    /* return: length of selected text */
5193 {
5194     if (VIsual_mode != 'V')
5195 	unadjust_for_sel();
5196     if (VIsual.lnum != curwin->w_cursor.lnum)
5197     {
5198 	if (cap != NULL)
5199 	    clearopbeep(cap->oap);
5200 	return FAIL;
5201     }
5202     if (VIsual_mode == 'V')
5203     {
5204 	*pp = ml_get_curline();
5205 	*lenp = (int)STRLEN(*pp);
5206     }
5207     else
5208     {
5209 	if (lt(curwin->w_cursor, VIsual))
5210 	{
5211 	    *pp = ml_get_pos(&curwin->w_cursor);
5212 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
5213 	}
5214 	else
5215 	{
5216 	    *pp = ml_get_pos(&VIsual);
5217 	    *lenp = curwin->w_cursor.col - VIsual.col + 1;
5218 	}
5219 #ifdef FEAT_MBYTE
5220 	if (has_mbyte)
5221 	    /* Correct the length to include the whole last character. */
5222 	    *lenp += (*mb_ptr2len)(*pp + (*lenp - 1)) - 1;
5223 #endif
5224     }
5225     reset_VIsual_and_resel();
5226     return OK;
5227 }
5228 #endif
5229 
5230 /*
5231  * CTRL-T: backwards in tag stack
5232  */
5233     static void
5234 nv_tagpop(cap)
5235     cmdarg_T	*cap;
5236 {
5237     if (!checkclearopq(cap->oap))
5238 	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
5239 }
5240 
5241 /*
5242  * Handle scrolling command 'H', 'L' and 'M'.
5243  */
5244     static void
5245 nv_scroll(cap)
5246     cmdarg_T  *cap;
5247 {
5248     int		used = 0;
5249     long	n;
5250 #ifdef FEAT_FOLDING
5251     linenr_T	lnum;
5252 #endif
5253     int		half;
5254 
5255     cap->oap->motion_type = MLINE;
5256     setpcmark();
5257 
5258     if (cap->cmdchar == 'L')
5259     {
5260 	validate_botline();	    /* make sure curwin->w_botline is valid */
5261 	curwin->w_cursor.lnum = curwin->w_botline - 1;
5262 	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
5263 	    curwin->w_cursor.lnum = 1;
5264 	else
5265 	{
5266 #ifdef FEAT_FOLDING
5267 	    if (hasAnyFolding(curwin))
5268 	    {
5269 		/* Count a fold for one screen line. */
5270 		for (n = cap->count1 - 1; n > 0
5271 			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
5272 		{
5273 		    (void)hasFolding(curwin->w_cursor.lnum,
5274 						&curwin->w_cursor.lnum, NULL);
5275 		    --curwin->w_cursor.lnum;
5276 		}
5277 	    }
5278 	    else
5279 #endif
5280 		curwin->w_cursor.lnum -= cap->count1 - 1;
5281 	}
5282     }
5283     else
5284     {
5285 	if (cap->cmdchar == 'M')
5286 	{
5287 #ifdef FEAT_DIFF
5288 	    /* Don't count filler lines above the window. */
5289 	    used -= diff_check_fill(curwin, curwin->w_topline)
5290 							  - curwin->w_topfill;
5291 #endif
5292 	    validate_botline();	    /* make sure w_empty_rows is valid */
5293 	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
5294 	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
5295 	    {
5296 #ifdef FEAT_DIFF
5297 		/* Count half he number of filler lines to be "below this
5298 		 * line" and half to be "above the next line". */
5299 		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
5300 							     + n) / 2 >= half)
5301 		{
5302 		    --n;
5303 		    break;
5304 		}
5305 #endif
5306 		used += plines(curwin->w_topline + n);
5307 		if (used >= half)
5308 		    break;
5309 #ifdef FEAT_FOLDING
5310 		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
5311 		    n = lnum - curwin->w_topline;
5312 #endif
5313 	    }
5314 	    if (n > 0 && used > curwin->w_height)
5315 		--n;
5316 	}
5317 	else /* (cap->cmdchar == 'H') */
5318 	{
5319 	    n = cap->count1 - 1;
5320 #ifdef FEAT_FOLDING
5321 	    if (hasAnyFolding(curwin))
5322 	    {
5323 		/* Count a fold for one screen line. */
5324 		lnum = curwin->w_topline;
5325 		while (n-- > 0 && lnum < curwin->w_botline - 1)
5326 		{
5327 		    hasFolding(lnum, NULL, &lnum);
5328 		    ++lnum;
5329 		}
5330 		n = lnum - curwin->w_topline;
5331 	    }
5332 #endif
5333 	}
5334 	curwin->w_cursor.lnum = curwin->w_topline + n;
5335 	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
5336 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
5337     }
5338 
5339     cursor_correct();	/* correct for 'so' */
5340     beginline(BL_SOL | BL_FIX);
5341 }
5342 
5343 /*
5344  * Cursor right commands.
5345  */
5346     static void
5347 nv_right(cap)
5348     cmdarg_T	*cap;
5349 {
5350     long	n;
5351 #ifdef FEAT_VISUAL
5352     int		PAST_LINE;
5353 #else
5354 # define PAST_LINE 0
5355 #endif
5356 
5357     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5358     {
5359 	/* <C-Right> and <S-Right> move a word or WORD right */
5360 	if (mod_mask & MOD_MASK_CTRL)
5361 	    cap->arg = TRUE;
5362 	nv_wordcmd(cap);
5363 	return;
5364     }
5365 
5366     cap->oap->motion_type = MCHAR;
5367     cap->oap->inclusive = FALSE;
5368 #ifdef FEAT_VISUAL
5369     PAST_LINE = (VIsual_active && *p_sel != 'o');
5370 
5371 # ifdef FEAT_VIRTUALEDIT
5372     /*
5373      * In virtual mode, there's no such thing as "PAST_LINE", as lines are
5374      * (theoretically) infinitly long.
5375      */
5376     if (virtual_active())
5377 	PAST_LINE = 0;
5378 # endif
5379 #endif
5380 
5381     for (n = cap->count1; n > 0; --n)
5382     {
5383 	if ((!PAST_LINE && oneright() == FAIL)
5384 		|| (PAST_LINE && *ml_get_cursor() == NUL))
5385 	{
5386 	    /*
5387 	     *	  <Space> wraps to next line if 'whichwrap' bit 1 set.
5388 	     *	      'l' wraps to next line if 'whichwrap' bit 2 set.
5389 	     * CURS_RIGHT wraps to next line if 'whichwrap' bit 3 set
5390 	     */
5391 	    if (       ((cap->cmdchar == ' '
5392 			    && vim_strchr(p_ww, 's') != NULL)
5393 			|| (cap->cmdchar == 'l'
5394 			    && vim_strchr(p_ww, 'l') != NULL)
5395 			|| (cap->cmdchar == K_RIGHT
5396 			    && vim_strchr(p_ww, '>') != NULL))
5397 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
5398 	    {
5399 		/* When deleting we also count the NL as a character.
5400 		 * Set cap->oap->inclusive when last char in the line is
5401 		 * included, move to next line after that */
5402 		if (	   (cap->oap->op_type == OP_DELETE
5403 			    || cap->oap->op_type == OP_CHANGE)
5404 			&& !cap->oap->inclusive
5405 			&& !lineempty(curwin->w_cursor.lnum))
5406 		    cap->oap->inclusive = TRUE;
5407 		else
5408 		{
5409 		    ++curwin->w_cursor.lnum;
5410 		    curwin->w_cursor.col = 0;
5411 #ifdef FEAT_VIRTUALEDIT
5412 		    curwin->w_cursor.coladd = 0;
5413 #endif
5414 		    curwin->w_set_curswant = TRUE;
5415 		    cap->oap->inclusive = FALSE;
5416 		}
5417 		continue;
5418 	    }
5419 	    if (cap->oap->op_type == OP_NOP)
5420 	    {
5421 		/* Only beep and flush if not moved at all */
5422 		if (n == cap->count1)
5423 		    beep_flush();
5424 	    }
5425 	    else
5426 	    {
5427 		if (!lineempty(curwin->w_cursor.lnum))
5428 		    cap->oap->inclusive = TRUE;
5429 	    }
5430 	    break;
5431 	}
5432 #ifdef FEAT_VISUAL
5433 	else if (PAST_LINE)
5434 	{
5435 	    curwin->w_set_curswant = TRUE;
5436 # ifdef FEAT_VIRTUALEDIT
5437 	    if (virtual_active())
5438 		oneright();
5439 	    else
5440 # endif
5441 	    {
5442 # ifdef FEAT_MBYTE
5443 		if (has_mbyte)
5444 		    curwin->w_cursor.col +=
5445 					 (*mb_ptr2len)(ml_get_cursor());
5446 		else
5447 # endif
5448 		    ++curwin->w_cursor.col;
5449 	    }
5450 	}
5451 #endif
5452     }
5453 #ifdef FEAT_FOLDING
5454     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5455 					       && cap->oap->op_type == OP_NOP)
5456 	foldOpenCursor();
5457 #endif
5458 }
5459 
5460 /*
5461  * Cursor left commands.
5462  *
5463  * Returns TRUE when operator end should not be adjusted.
5464  */
5465     static void
5466 nv_left(cap)
5467     cmdarg_T	*cap;
5468 {
5469     long	n;
5470 
5471     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5472     {
5473 	/* <C-Left> and <S-Left> move a word or WORD left */
5474 	if (mod_mask & MOD_MASK_CTRL)
5475 	    cap->arg = 1;
5476 	nv_bck_word(cap);
5477 	return;
5478     }
5479 
5480     cap->oap->motion_type = MCHAR;
5481     cap->oap->inclusive = FALSE;
5482     for (n = cap->count1; n > 0; --n)
5483     {
5484 	if (oneleft() == FAIL)
5485 	{
5486 	    /* <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
5487 	     *		 'h' wraps to previous line if 'whichwrap' has 'h'.
5488 	     *	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
5489 	     */
5490 	    if (       (((cap->cmdchar == K_BS
5491 				|| cap->cmdchar == Ctrl_H)
5492 			    && vim_strchr(p_ww, 'b') != NULL)
5493 			|| (cap->cmdchar == 'h'
5494 			    && vim_strchr(p_ww, 'h') != NULL)
5495 			|| (cap->cmdchar == K_LEFT
5496 			    && vim_strchr(p_ww, '<') != NULL))
5497 		    && curwin->w_cursor.lnum > 1)
5498 	    {
5499 		--(curwin->w_cursor.lnum);
5500 		coladvance((colnr_T)MAXCOL);
5501 		curwin->w_set_curswant = TRUE;
5502 
5503 		/* When the NL before the first char has to be deleted we
5504 		 * put the cursor on the NUL after the previous line.
5505 		 * This is a very special case, be careful!
5506 		 * don't adjust op_end now, otherwise it won't work */
5507 		if (	   (cap->oap->op_type == OP_DELETE
5508 			    || cap->oap->op_type == OP_CHANGE)
5509 			&& !lineempty(curwin->w_cursor.lnum))
5510 		{
5511 		    ++curwin->w_cursor.col;
5512 		    cap->retval |= CA_NO_ADJ_OP_END;
5513 		}
5514 		continue;
5515 	    }
5516 	    /* Only beep and flush if not moved at all */
5517 	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
5518 		beep_flush();
5519 	    break;
5520 	}
5521     }
5522 #ifdef FEAT_FOLDING
5523     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5524 					       && cap->oap->op_type == OP_NOP)
5525 	foldOpenCursor();
5526 #endif
5527 }
5528 
5529 /*
5530  * Cursor up commands.
5531  * cap->arg is TRUE for "-": Move cursor to first non-blank.
5532  */
5533     static void
5534 nv_up(cap)
5535     cmdarg_T	*cap;
5536 {
5537     if (mod_mask & MOD_MASK_SHIFT)
5538     {
5539 	/* <S-Up> is page up */
5540 	cap->arg = BACKWARD;
5541 	nv_page(cap);
5542     }
5543     else
5544     {
5545 	cap->oap->motion_type = MLINE;
5546 	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5547 	    clearopbeep(cap->oap);
5548 	else if (cap->arg)
5549 	    beginline(BL_WHITE | BL_FIX);
5550     }
5551 }
5552 
5553 /*
5554  * Cursor down commands.
5555  * cap->arg is TRUE for CR and "+": Move cursor to first non-blank.
5556  */
5557     static void
5558 nv_down(cap)
5559     cmdarg_T	*cap;
5560 {
5561     if (mod_mask & MOD_MASK_SHIFT)
5562     {
5563 	/* <S-Down> is page down */
5564 	cap->arg = FORWARD;
5565 	nv_page(cap);
5566     }
5567     else
5568 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5569     /* In a quickfix window a <CR> jumps to the error under the cursor. */
5570     if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
5571 	do_cmdline_cmd((char_u *)".cc");
5572     else
5573 #endif
5574     {
5575 #ifdef FEAT_CMDWIN
5576 	/* In the cmdline window a <CR> executes the command. */
5577 	if (cmdwin_type != 0 && cap->cmdchar == CAR)
5578 	    cmdwin_result = CAR;
5579 	else
5580 #endif
5581 	{
5582 	    cap->oap->motion_type = MLINE;
5583 	    if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5584 		clearopbeep(cap->oap);
5585 	    else if (cap->arg)
5586 		beginline(BL_WHITE | BL_FIX);
5587 	}
5588     }
5589 }
5590 
5591 #ifdef FEAT_SEARCHPATH
5592 /*
5593  * Grab the file name under the cursor and edit it.
5594  */
5595     static void
5596 nv_gotofile(cap)
5597     cmdarg_T	*cap;
5598 {
5599     char_u	*ptr;
5600 
5601 #ifdef FEAT_CMDWIN
5602     if (cmdwin_type != 0)
5603     {
5604 	clearopbeep(cap->oap);
5605 	return;
5606     }
5607 #endif
5608 
5609     ptr = grab_file_name(cap->count1);
5610 
5611     if (ptr != NULL)
5612     {
5613 	/* do autowrite if necessary */
5614 	if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !P_HID(curbuf))
5615 	    autowrite(curbuf, FALSE);
5616 	setpcmark();
5617 	(void)do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
5618 					       P_HID(curbuf) ? ECMD_HIDE : 0);
5619 	vim_free(ptr);
5620     }
5621     else
5622 	clearop(cap->oap);
5623 }
5624 #endif
5625 
5626 /*
5627  * <End> command: to end of current line or last line.
5628  */
5629     static void
5630 nv_end(cap)
5631     cmdarg_T	*cap;
5632 {
5633     if (cap->arg || (mod_mask & MOD_MASK_CTRL))	/* CTRL-END = goto last line */
5634     {
5635 	cap->arg = TRUE;
5636 	nv_goto(cap);
5637 	cap->count1 = 1;		/* to end of current line */
5638     }
5639     nv_dollar(cap);
5640 }
5641 
5642 /*
5643  * Handle the "$" command.
5644  */
5645     static void
5646 nv_dollar(cap)
5647     cmdarg_T	*cap;
5648 {
5649     cap->oap->motion_type = MCHAR;
5650     cap->oap->inclusive = TRUE;
5651 #ifdef FEAT_VIRTUALEDIT
5652     /* In virtual mode when off the edge of a line and an operator
5653      * is pending (whew!) keep the cursor where it is.
5654      * Otherwise, send it to the end of the line. */
5655     if (!virtual_active() || gchar_cursor() != NUL
5656 					       || cap->oap->op_type == OP_NOP)
5657 #endif
5658 	curwin->w_curswant = MAXCOL;	/* so we stay at the end */
5659     if (cursor_down((long)(cap->count1 - 1),
5660 					 cap->oap->op_type == OP_NOP) == FAIL)
5661 	clearopbeep(cap->oap);
5662 #ifdef FEAT_FOLDING
5663     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
5664 	foldOpenCursor();
5665 #endif
5666 }
5667 
5668 /*
5669  * Implementation of '?' and '/' commands.
5670  * If cap->arg is TRUE don't set PC mark.
5671  */
5672     static void
5673 nv_search(cap)
5674     cmdarg_T	    *cap;
5675 {
5676     oparg_T	*oap = cap->oap;
5677 
5678     if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
5679     {
5680 	/* Translate "g??" to "g?g?" */
5681 	cap->cmdchar = 'g';
5682 	cap->nchar = '?';
5683 	nv_operator(cap);
5684 	return;
5685     }
5686 
5687     cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0);
5688 
5689     if (cap->searchbuf == NULL)
5690     {
5691 	clearop(oap);
5692 	return;
5693     }
5694 
5695     normal_search(cap, cap->cmdchar, cap->searchbuf,
5696 						(cap->arg ? 0 : SEARCH_MARK));
5697 }
5698 
5699 /*
5700  * Handle "N" and "n" commands.
5701  * cap->arg is SEARCH_REV for "N", 0 for "n".
5702  */
5703     static void
5704 nv_next(cap)
5705     cmdarg_T	*cap;
5706 {
5707     normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
5708 }
5709 
5710 /*
5711  * Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
5712  * Uses only cap->count1 and cap->oap from "cap".
5713  */
5714     static void
5715 normal_search(cap, dir, pat, opt)
5716     cmdarg_T	*cap;
5717     int		dir;
5718     char_u	*pat;
5719     int		opt;		/* extra flags for do_search() */
5720 {
5721     int		i;
5722 
5723     cap->oap->motion_type = MCHAR;
5724     cap->oap->inclusive = FALSE;
5725     cap->oap->use_reg_one = TRUE;
5726     curwin->w_set_curswant = TRUE;
5727 
5728     i = do_search(cap->oap, dir, pat, cap->count1,
5729 				 opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG);
5730     if (i == 0)
5731 	clearop(cap->oap);
5732     else
5733     {
5734 	if (i == 2)
5735 	    cap->oap->motion_type = MLINE;
5736 #ifdef FEAT_VIRTUALEDIT
5737 	curwin->w_cursor.coladd = 0;
5738 #endif
5739 #ifdef FEAT_FOLDING
5740 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
5741 	    foldOpenCursor();
5742 #endif
5743     }
5744 
5745     /* "/$" will put the cursor after the end of the line, may need to
5746      * correct that here */
5747     check_cursor();
5748 }
5749 
5750 /*
5751  * Character search commands.
5752  * cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', TRUE for
5753  * ',' and FALSE for ';'.
5754  * cap->nchar is NUL for ',' and ';' (repeat the search)
5755  */
5756     static void
5757 nv_csearch(cap)
5758     cmdarg_T	*cap;
5759 {
5760     int		t_cmd;
5761 
5762     if (cap->cmdchar == 't' || cap->cmdchar == 'T')
5763 	t_cmd = TRUE;
5764     else
5765 	t_cmd = FALSE;
5766 
5767     cap->oap->motion_type = MCHAR;
5768     if (cap->arg == BACKWARD)
5769 	cap->oap->inclusive = FALSE;
5770     else
5771 	cap->oap->inclusive = TRUE;
5772     if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
5773 	clearopbeep(cap->oap);
5774     else
5775     {
5776 	curwin->w_set_curswant = TRUE;
5777 #ifdef FEAT_VIRTUALEDIT
5778 	/* Include a Tab for "tx" and for "dfx". */
5779 	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
5780 		&& (t_cmd || cap->oap->op_type != OP_NOP))
5781 	{
5782 	    colnr_T	scol, ecol;
5783 
5784 	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
5785 	    curwin->w_cursor.coladd = ecol - scol;
5786 	}
5787 	else
5788 	    curwin->w_cursor.coladd = 0;
5789 #endif
5790 #ifdef FEAT_VISUAL
5791 	adjust_for_sel(cap);
5792 #endif
5793 #ifdef FEAT_FOLDING
5794 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
5795 	    foldOpenCursor();
5796 #endif
5797     }
5798 }
5799 
5800 /*
5801  * "[" and "]" commands.
5802  * cap->arg is BACKWARD for "[" and FORWARD for "]".
5803  */
5804     static void
5805 nv_brackets(cap)
5806     cmdarg_T	*cap;
5807 {
5808     pos_T	new_pos;
5809     pos_T	prev_pos;
5810     pos_T	*pos = NULL;	    /* init for GCC */
5811     pos_T	old_pos;	    /* cursor position before command */
5812     int		flag;
5813     long	n;
5814     int		findc;
5815     int		c;
5816 
5817     cap->oap->motion_type = MCHAR;
5818     cap->oap->inclusive = FALSE;
5819     old_pos = curwin->w_cursor;
5820 #ifdef FEAT_VIRTUALEDIT
5821     curwin->w_cursor.coladd = 0;	    /* TODO: don't do this for an error. */
5822 #endif
5823 
5824 #ifdef FEAT_SEARCHPATH
5825     /*
5826      * "[f" or "]f" : Edit file under the cursor (same as "gf")
5827      */
5828     if (cap->nchar == 'f')
5829 	nv_gotofile(cap);
5830     else
5831 #endif
5832 
5833 #ifdef FEAT_FIND_ID
5834     /*
5835      * Find the occurence(s) of the identifier or define under cursor
5836      * in current and included files or jump to the first occurence.
5837      *
5838      *			search	     list	    jump
5839      *		      fwd   bwd    fwd	 bwd	 fwd	bwd
5840      * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
5841      * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
5842      */
5843     if (vim_strchr((char_u *)
5844 #ifdef EBCDIC
5845 		"iI\005dD\067",
5846 #else
5847 		"iI\011dD\004",
5848 #endif
5849 		cap->nchar) != NULL)
5850     {
5851 	char_u	*ptr;
5852 	int	len;
5853 
5854 	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
5855 	    clearop(cap->oap);
5856 	else
5857 	{
5858 	    find_pattern_in_path(ptr, 0, len, TRUE,
5859 		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
5860 		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
5861 		cap->count1,
5862 		isupper(cap->nchar) ? ACTION_SHOW_ALL :
5863 			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
5864 		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
5865 		(linenr_T)MAXLNUM);
5866 	    curwin->w_set_curswant = TRUE;
5867 	}
5868     }
5869     else
5870 #endif
5871 
5872     /*
5873      * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
5874      * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
5875      * "[/", "[*", "]/", "]*": go to Nth comment start/end.
5876      * "[m" or "]m" search for prev/next start of (Java) method.
5877      * "[M" or "]M" search for prev/next end of (Java) method.
5878      */
5879     if (  (cap->cmdchar == '['
5880 		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
5881 	    || (cap->cmdchar == ']'
5882 		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
5883     {
5884 	if (cap->nchar == '*')
5885 	    cap->nchar = '/';
5886 	new_pos.lnum = 0;
5887 	prev_pos.lnum = 0;
5888 	if (cap->nchar == 'm' || cap->nchar == 'M')
5889 	{
5890 	    if (cap->cmdchar == '[')
5891 		findc = '{';
5892 	    else
5893 		findc = '}';
5894 	    n = 9999;
5895 	}
5896 	else
5897 	{
5898 	    findc = cap->nchar;
5899 	    n = cap->count1;
5900 	}
5901 	for ( ; n > 0; --n)
5902 	{
5903 	    if ((pos = findmatchlimit(cap->oap, findc,
5904 		(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
5905 	    {
5906 		if (new_pos.lnum == 0)	/* nothing found */
5907 		{
5908 		    if (cap->nchar != 'm' && cap->nchar != 'M')
5909 			clearopbeep(cap->oap);
5910 		}
5911 		else
5912 		    pos = &new_pos;	/* use last one found */
5913 		break;
5914 	    }
5915 	    prev_pos = new_pos;
5916 	    curwin->w_cursor = *pos;
5917 	    new_pos = *pos;
5918 	}
5919 	curwin->w_cursor = old_pos;
5920 
5921 	/*
5922 	 * Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
5923 	 * brought us to the match for "[m" and "]M" when inside a method.
5924 	 * Try finding the '{' or '}' we want to be at.
5925 	 * Also repeat for the given count.
5926 	 */
5927 	if (cap->nchar == 'm' || cap->nchar == 'M')
5928 	{
5929 	    /* norm is TRUE for "]M" and "[m" */
5930 	    int	    norm = ((findc == '{') == (cap->nchar == 'm'));
5931 
5932 	    n = cap->count1;
5933 	    /* found a match: we were inside a method */
5934 	    if (prev_pos.lnum != 0)
5935 	    {
5936 		pos = &prev_pos;
5937 		curwin->w_cursor = prev_pos;
5938 		if (norm)
5939 		    --n;
5940 	    }
5941 	    else
5942 		pos = NULL;
5943 	    while (n > 0)
5944 	    {
5945 		for (;;)
5946 		{
5947 		    if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
5948 		    {
5949 			/* if not found anything, that's an error */
5950 			if (pos == NULL)
5951 			    clearopbeep(cap->oap);
5952 			n = 0;
5953 			break;
5954 		    }
5955 		    c = gchar_cursor();
5956 		    if (c == '{' || c == '}')
5957 		    {
5958 			/* Must have found end/start of class: use it.
5959 			 * Or found the place to be at. */
5960 			if ((c == findc && norm) || (n == 1 && !norm))
5961 			{
5962 			    new_pos = curwin->w_cursor;
5963 			    pos = &new_pos;
5964 			    n = 0;
5965 			}
5966 			/* if no match found at all, we started outside of the
5967 			 * class and we're inside now.  Just go on. */
5968 			else if (new_pos.lnum == 0)
5969 			{
5970 			    new_pos = curwin->w_cursor;
5971 			    pos = &new_pos;
5972 			}
5973 			/* found start/end of other method: go to match */
5974 			else if ((pos = findmatchlimit(cap->oap, findc,
5975 			    (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
5976 								  0)) == NULL)
5977 			    n = 0;
5978 			else
5979 			    curwin->w_cursor = *pos;
5980 			break;
5981 		    }
5982 		}
5983 		--n;
5984 	    }
5985 	    curwin->w_cursor = old_pos;
5986 	    if (pos == NULL && new_pos.lnum != 0)
5987 		clearopbeep(cap->oap);
5988 	}
5989 	if (pos != NULL)
5990 	{
5991 	    setpcmark();
5992 	    curwin->w_cursor = *pos;
5993 	    curwin->w_set_curswant = TRUE;
5994 #ifdef FEAT_FOLDING
5995 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped
5996 					       && cap->oap->op_type == OP_NOP)
5997 		foldOpenCursor();
5998 #endif
5999 	}
6000     }
6001 
6002     /*
6003      * "[[", "[]", "]]" and "][": move to start or end of function
6004      */
6005     else if (cap->nchar == '[' || cap->nchar == ']')
6006     {
6007 	if (cap->nchar == cap->cmdchar)		    /* "]]" or "[[" */
6008 	    flag = '{';
6009 	else
6010 	    flag = '}';		    /* "][" or "[]" */
6011 
6012 	curwin->w_set_curswant = TRUE;
6013 	/*
6014 	 * Imitate strange Vi behaviour: When using "]]" with an operator
6015 	 * we also stop at '}'.
6016 	 */
6017 	if (!findpar(cap->oap, cap->arg, cap->count1, flag,
6018 	      (cap->oap->op_type != OP_NOP
6019 				      && cap->arg == FORWARD && flag == '{')))
6020 	    clearopbeep(cap->oap);
6021 	else
6022 	{
6023 	    if (cap->oap->op_type == OP_NOP)
6024 		beginline(BL_WHITE | BL_FIX);
6025 #ifdef FEAT_FOLDING
6026 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6027 		foldOpenCursor();
6028 #endif
6029 	}
6030     }
6031 
6032     /*
6033      * "[p", "[P", "]P" and "]p": put with indent adjustment
6034      */
6035     else if (cap->nchar == 'p' || cap->nchar == 'P')
6036     {
6037 	if (!checkclearopq(cap->oap))
6038 	{
6039 	    prep_redo_cmd(cap);
6040 	    do_put(cap->oap->regname,
6041 	      (cap->cmdchar == ']' && cap->nchar == 'p') ? FORWARD : BACKWARD,
6042 						  cap->count1, PUT_FIXINDENT);
6043 	}
6044     }
6045 
6046     /*
6047      * "['", "[`", "]'" and "]`": jump to next mark
6048      */
6049     else if (cap->nchar == '\'' || cap->nchar == '`')
6050     {
6051 	pos = &curwin->w_cursor;
6052 	for (n = cap->count1; n > 0; --n)
6053 	{
6054 	    prev_pos = *pos;
6055 	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
6056 							  cap->nchar == '\'');
6057 	    if (pos == NULL)
6058 		break;
6059 	}
6060 	if (pos == NULL)
6061 	    pos = &prev_pos;
6062 	nv_cursormark(cap, cap->nchar == '\'', pos);
6063     }
6064 
6065 #ifdef FEAT_MOUSE
6066     /*
6067      * [ or ] followed by a middle mouse click: put selected text with
6068      * indent adjustment.  Any other button just does as usual.
6069      */
6070     else if (cap->nchar >= K_LEFTMOUSE && cap->nchar <= K_RIGHTRELEASE)
6071     {
6072 	(void)do_mouse(cap->oap, cap->nchar,
6073 		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
6074 		       cap->count1, PUT_FIXINDENT);
6075     }
6076 #endif /* FEAT_MOUSE */
6077 
6078 #ifdef FEAT_FOLDING
6079     /*
6080      * "[z" and "]z": move to start or end of open fold.
6081      */
6082     else if (cap->nchar == 'z')
6083     {
6084 	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6085 							 cap->count1) == FAIL)
6086 	    clearopbeep(cap->oap);
6087     }
6088 #endif
6089 
6090 #ifdef FEAT_DIFF
6091     /*
6092      * "[c" and "]c": move to next or previous diff-change.
6093      */
6094     else if (cap->nchar == 'c')
6095     {
6096 	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
6097 							 cap->count1) == FAIL)
6098 	    clearopbeep(cap->oap);
6099     }
6100 #endif
6101 
6102 #ifdef FEAT_SYN_HL
6103     /*
6104      * "[s", "[S", "]s" and "]S": move to next spell error.
6105      */
6106     else if (cap->nchar == 's' || cap->nchar == 'S')
6107     {
6108 	setpcmark();
6109 	for (n = 0; n < cap->count1; ++n)
6110 	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6111 			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
6112 	    {
6113 		clearopbeep(cap->oap);
6114 		break;
6115 	    }
6116     }
6117 #endif
6118 
6119     /* Not a valid cap->nchar. */
6120     else
6121 	clearopbeep(cap->oap);
6122 }
6123 
6124 /*
6125  * Handle Normal mode "%" command.
6126  */
6127     static void
6128 nv_percent(cap)
6129     cmdarg_T	*cap;
6130 {
6131     pos_T	*pos;
6132 #ifdef FEAT_FOLDING
6133     linenr_T	lnum = curwin->w_cursor.lnum;
6134 #endif
6135 
6136     cap->oap->inclusive = TRUE;
6137     if (cap->count0)	    /* {cnt}% : goto {cnt} percentage in file */
6138     {
6139 	if (cap->count0 > 100)
6140 	    clearopbeep(cap->oap);
6141 	else
6142 	{
6143 	    cap->oap->motion_type = MLINE;
6144 	    setpcmark();
6145 	    /* Round up, so CTRL-G will give same value.  Watch out for a
6146 	     * large line count, the line number must not go negative! */
6147 	    if (curbuf->b_ml.ml_line_count > 1000000)
6148 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99L)
6149 							 / 100L * cap->count0;
6150 	    else
6151 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
6152 						    cap->count0 + 99L) / 100L;
6153 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
6154 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6155 	    beginline(BL_SOL | BL_FIX);
6156 	}
6157     }
6158     else		    /* "%" : go to matching paren */
6159     {
6160 	cap->oap->motion_type = MCHAR;
6161 	cap->oap->use_reg_one = TRUE;
6162 	if ((pos = findmatch(cap->oap, NUL)) == NULL)
6163 	    clearopbeep(cap->oap);
6164 	else
6165 	{
6166 	    setpcmark();
6167 	    curwin->w_cursor = *pos;
6168 	    curwin->w_set_curswant = TRUE;
6169 #ifdef FEAT_VIRTUALEDIT
6170 	    curwin->w_cursor.coladd = 0;
6171 #endif
6172 #ifdef FEAT_VISUAL
6173 	    adjust_for_sel(cap);
6174 #endif
6175 	}
6176     }
6177 #ifdef FEAT_FOLDING
6178     if (cap->oap->op_type == OP_NOP
6179 	    && lnum != curwin->w_cursor.lnum
6180 	    && (fdo_flags & FDO_PERCENT)
6181 	    && KeyTyped)
6182 	foldOpenCursor();
6183 #endif
6184 }
6185 
6186 /*
6187  * Handle "(" and ")" commands.
6188  * cap->arg is BACKWARD for "(" and FORWARD for ")".
6189  */
6190     static void
6191 nv_brace(cap)
6192     cmdarg_T	*cap;
6193 {
6194     cap->oap->motion_type = MCHAR;
6195     cap->oap->use_reg_one = TRUE;
6196     if (cap->cmdchar == ')')
6197 	cap->oap->inclusive = FALSE;
6198     else
6199 	cap->oap->inclusive = TRUE;
6200     curwin->w_set_curswant = TRUE;
6201 
6202     if (findsent(cap->arg, cap->count1) == FAIL)
6203 	clearopbeep(cap->oap);
6204     else
6205     {
6206 #ifdef FEAT_VIRTUALEDIT
6207 	curwin->w_cursor.coladd = 0;
6208 #endif
6209 #ifdef FEAT_FOLDING
6210 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6211 	    foldOpenCursor();
6212 #endif
6213     }
6214 }
6215 
6216 /*
6217  * "m" command: Mark a position.
6218  */
6219     static void
6220 nv_mark(cap)
6221     cmdarg_T	*cap;
6222 {
6223     if (!checkclearop(cap->oap))
6224     {
6225 	if (setmark(cap->nchar) == FAIL)
6226 	    clearopbeep(cap->oap);
6227     }
6228 }
6229 
6230 /*
6231  * "{" and "}" commands.
6232  * cmd->arg is BACKWARD for "{" and FORWARD for "}".
6233  */
6234     static void
6235 nv_findpar(cap)
6236     cmdarg_T	*cap;
6237 {
6238     cap->oap->motion_type = MCHAR;
6239     cap->oap->inclusive = FALSE;
6240     cap->oap->use_reg_one = TRUE;
6241     curwin->w_set_curswant = TRUE;
6242     if (!findpar(cap->oap, cap->arg, cap->count1, NUL, FALSE))
6243 	clearopbeep(cap->oap);
6244     else
6245     {
6246 #ifdef FEAT_VIRTUALEDIT
6247 	curwin->w_cursor.coladd = 0;
6248 #endif
6249 #ifdef FEAT_FOLDING
6250 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6251 	    foldOpenCursor();
6252 #endif
6253     }
6254 }
6255 
6256 /*
6257  * "u" command: Undo or make lower case.
6258  */
6259     static void
6260 nv_undo(cap)
6261     cmdarg_T	*cap;
6262 {
6263     if (cap->oap->op_type == OP_LOWER
6264 #ifdef FEAT_VISUAL
6265 	    || VIsual_active
6266 #endif
6267 	    )
6268     {
6269 	/* translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu" */
6270 	cap->cmdchar = 'g';
6271 	cap->nchar = 'u';
6272 	nv_operator(cap);
6273     }
6274     else
6275 	nv_kundo(cap);
6276 }
6277 
6278 /*
6279  * <Undo> command.
6280  */
6281     static void
6282 nv_kundo(cap)
6283     cmdarg_T	*cap;
6284 {
6285     if (!checkclearopq(cap->oap))
6286     {
6287 	u_undo((int)cap->count1);
6288 	curwin->w_set_curswant = TRUE;
6289     }
6290 }
6291 
6292 /*
6293  * Handle the "r" command.
6294  */
6295     static void
6296 nv_replace(cap)
6297     cmdarg_T	*cap;
6298 {
6299     char_u	*ptr;
6300     int		had_ctrl_v;
6301     long	n;
6302 
6303     if (checkclearop(cap->oap))
6304 	return;
6305 
6306     /* get another character */
6307     if (cap->nchar == Ctrl_V)
6308     {
6309 	had_ctrl_v = Ctrl_V;
6310 	cap->nchar = get_literal();
6311 	/* Don't redo a multibyte character with CTRL-V. */
6312 	if (cap->nchar > DEL)
6313 	    had_ctrl_v = NUL;
6314     }
6315     else
6316 	had_ctrl_v = NUL;
6317 
6318 #ifdef FEAT_VISUAL
6319     /* Visual mode "r" */
6320     if (VIsual_active)
6321     {
6322 	nv_operator(cap);
6323 	return;
6324     }
6325 #endif
6326 
6327 #ifdef FEAT_VIRTUALEDIT
6328     /* Break tabs, etc. */
6329     if (virtual_active())
6330     {
6331 	if (u_save_cursor() == FAIL)
6332 	    return;
6333 	if (gchar_cursor() == NUL)
6334 	{
6335 	    /* Add extra space and put the cursor on the first one. */
6336 	    coladvance_force((colnr_T)(getviscol() + cap->count1));
6337 	    curwin->w_cursor.col -= cap->count1;
6338 	}
6339 	else if (gchar_cursor() == TAB)
6340 	    coladvance_force(getviscol());
6341     }
6342 #endif
6343 
6344     /*
6345      * Check for a special key or not enough characters to replace.
6346      */
6347     ptr = ml_get_cursor();
6348     if (IS_SPECIAL(cap->nchar) || STRLEN(ptr) < (unsigned)cap->count1
6349 #ifdef FEAT_MBYTE
6350 	    || (has_mbyte && mb_charlen(ptr) < cap->count1)
6351 #endif
6352 	    )
6353     {
6354 	clearopbeep(cap->oap);
6355 	return;
6356     }
6357 
6358     /*
6359      * Replacing with a TAB is done by edit() when it is complicated because
6360      * 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
6361      * Other characters are done below to avoid problems with things like
6362      * CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
6363      */
6364     if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
6365     {
6366 	stuffnumReadbuff(cap->count1);
6367 	stuffcharReadbuff('R');
6368 	stuffcharReadbuff('\t');
6369 	stuffcharReadbuff(ESC);
6370 	return;
6371     }
6372 
6373     /* save line for undo */
6374     if (u_save_cursor() == FAIL)
6375 	return;
6376 
6377     if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
6378     {
6379 	/*
6380 	 * Replace character(s) by a single newline.
6381 	 * Strange vi behaviour: Only one newline is inserted.
6382 	 * Delete the characters here.
6383 	 * Insert the newline with an insert command, takes care of
6384 	 * autoindent.	The insert command depends on being on the last
6385 	 * character of a line or not.
6386 	 */
6387 #ifdef FEAT_MBYTE
6388 	(void)del_chars(cap->count1, FALSE);	/* delete the characters */
6389 #else
6390 	(void)del_bytes(cap->count1, FALSE);	/* delete the characters */
6391 #endif
6392 	stuffcharReadbuff('\r');
6393 	stuffcharReadbuff(ESC);
6394 
6395 	/* Give 'r' to edit(), to get the redo command right. */
6396 	invoke_edit(cap, TRUE, 'r', FALSE);
6397     }
6398     else
6399     {
6400 	prep_redo(cap->oap->regname, cap->count1,
6401 				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);
6402 
6403 	curbuf->b_op_start = curwin->w_cursor;
6404 #ifdef FEAT_MBYTE
6405 	if (has_mbyte)
6406 	{
6407 	    int		old_State = State;
6408 
6409 	    if (cap->ncharC1 != 0)
6410 		AppendCharToRedobuff(cap->ncharC1);
6411 	    if (cap->ncharC2 != 0)
6412 		AppendCharToRedobuff(cap->ncharC2);
6413 
6414 	    /* This is slow, but it handles replacing a single-byte with a
6415 	     * multi-byte and the other way around.  Also handles adding
6416 	     * composing characters for utf-8. */
6417 	    for (n = cap->count1; n > 0; --n)
6418 	    {
6419 		State = REPLACE;
6420 		ins_char(cap->nchar);
6421 		State = old_State;
6422 		if (cap->ncharC1 != 0)
6423 		    ins_char(cap->ncharC1);
6424 		if (cap->ncharC2 != 0)
6425 		    ins_char(cap->ncharC2);
6426 	    }
6427 	}
6428 	else
6429 #endif
6430 	{
6431 	    /*
6432 	     * Replace the characters within one line.
6433 	     */
6434 	    for (n = cap->count1; n > 0; --n)
6435 	    {
6436 		/*
6437 		 * Get ptr again, because u_save and/or showmatch() will have
6438 		 * released the line.  At the same time we let know that the
6439 		 * line will be changed.
6440 		 */
6441 		ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
6442 		ptr[curwin->w_cursor.col] = cap->nchar;
6443 		if (p_sm && msg_silent == 0)
6444 		    showmatch(cap->nchar);
6445 		++curwin->w_cursor.col;
6446 	    }
6447 #ifdef FEAT_NETBEANS_INTG
6448 	    if (usingNetbeans)
6449 	    {
6450 		colnr_T start = (colnr_T)(curwin->w_cursor.col - cap->count1);
6451 
6452 		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
6453 							    (long)cap->count1);
6454 		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
6455 					       &ptr[start], (int)cap->count1);
6456 	    }
6457 #endif
6458 
6459 	    /* mark the buffer as changed and prepare for displaying */
6460 	    changed_bytes(curwin->w_cursor.lnum,
6461 			       (colnr_T)(curwin->w_cursor.col - cap->count1));
6462 	}
6463 	--curwin->w_cursor.col;	    /* cursor on the last replaced char */
6464 #ifdef FEAT_MBYTE
6465 	/* if the character on the left of the current cursor is a multi-byte
6466 	 * character, move two characters left */
6467 	if (has_mbyte)
6468 	    mb_adjust_cursor();
6469 #endif
6470 	curbuf->b_op_end = curwin->w_cursor;
6471 	curwin->w_set_curswant = TRUE;
6472 	set_last_insert(cap->nchar);
6473     }
6474 }
6475 
6476 #ifdef FEAT_VISUAL
6477 /*
6478  * 'o': Exchange start and end of Visual area.
6479  * 'O': same, but in block mode exchange left and right corners.
6480  */
6481     static void
6482 v_swap_corners(cmdchar)
6483     int		cmdchar;
6484 {
6485     pos_T	old_cursor;
6486     colnr_T	left, right;
6487 
6488     if (cmdchar == 'O' && VIsual_mode == Ctrl_V)
6489     {
6490 	old_cursor = curwin->w_cursor;
6491 	getvcols(curwin, &old_cursor, &VIsual, &left, &right);
6492 	curwin->w_cursor.lnum = VIsual.lnum;
6493 	coladvance(left);
6494 	VIsual = curwin->w_cursor;
6495 
6496 	curwin->w_cursor.lnum = old_cursor.lnum;
6497 	curwin->w_curswant = right;
6498 	/* 'selection "exclusive" and cursor at right-bottom corner: move it
6499 	 * right one column */
6500 	if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e')
6501 	    ++curwin->w_curswant;
6502 	coladvance(curwin->w_curswant);
6503 	if (curwin->w_cursor.col == old_cursor.col
6504 #ifdef FEAT_VIRTUALEDIT
6505 		&& (!virtual_active()
6506 		    || curwin->w_cursor.coladd == old_cursor.coladd)
6507 #endif
6508 		)
6509 	{
6510 	    curwin->w_cursor.lnum = VIsual.lnum;
6511 	    if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e')
6512 		++right;
6513 	    coladvance(right);
6514 	    VIsual = curwin->w_cursor;
6515 
6516 	    curwin->w_cursor.lnum = old_cursor.lnum;
6517 	    coladvance(left);
6518 	    curwin->w_curswant = left;
6519 	}
6520     }
6521     else
6522     {
6523 	old_cursor = curwin->w_cursor;
6524 	curwin->w_cursor = VIsual;
6525 	VIsual = old_cursor;
6526 	curwin->w_set_curswant = TRUE;
6527     }
6528 }
6529 #endif /* FEAT_VISUAL */
6530 
6531 /*
6532  * "R" (cap->arg is FALSE) and "gR" (cap->arg is TRUE).
6533  */
6534     static void
6535 nv_Replace(cap)
6536     cmdarg_T	    *cap;
6537 {
6538 #ifdef FEAT_VISUAL
6539     if (VIsual_active)		/* "R" is replace lines */
6540     {
6541 	cap->cmdchar = 'c';
6542 	cap->nchar = NUL;
6543 	VIsual_mode = 'V';
6544 	nv_operator(cap);
6545     }
6546     else
6547 #endif
6548 	if (!checkclearopq(cap->oap))
6549     {
6550 	if (!curbuf->b_p_ma)
6551 	    EMSG(_(e_modifiable));
6552 	else
6553 	{
6554 #ifdef FEAT_VIRTUALEDIT
6555 	    if (virtual_active())
6556 		coladvance(getviscol());
6557 #endif
6558 	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
6559 	}
6560     }
6561 }
6562 
6563 #ifdef FEAT_VREPLACE
6564 /*
6565  * "gr".
6566  */
6567     static void
6568 nv_vreplace(cap)
6569     cmdarg_T	*cap;
6570 {
6571 # ifdef FEAT_VISUAL
6572     if (VIsual_active)
6573     {
6574 	cap->cmdchar = 'r';
6575 	cap->nchar = cap->extra_char;
6576 	nv_replace(cap);	/* Do same as "r" in Visual mode for now */
6577     }
6578     else
6579 # endif
6580 	if (!checkclearopq(cap->oap))
6581     {
6582 	if (!curbuf->b_p_ma)
6583 	    EMSG(_(e_modifiable));
6584 	else
6585 	{
6586 	    if (cap->extra_char == Ctrl_V)	/* get another character */
6587 		cap->extra_char = get_literal();
6588 	    stuffcharReadbuff(cap->extra_char);
6589 	    stuffcharReadbuff(ESC);
6590 # ifdef FEAT_VIRTUALEDIT
6591 	    if (virtual_active())
6592 		coladvance(getviscol());
6593 # endif
6594 	    invoke_edit(cap, TRUE, 'v', FALSE);
6595 	}
6596     }
6597 }
6598 #endif
6599 
6600 /*
6601  * Swap case for "~" command, when it does not work like an operator.
6602  */
6603     static void
6604 n_swapchar(cap)
6605     cmdarg_T	*cap;
6606 {
6607     long	n;
6608     pos_T	startpos;
6609     int		did_change = 0;
6610 #ifdef FEAT_NETBEANS_INTG
6611     pos_T	pos;
6612     char_u	*ptr;
6613     int		count;
6614 #endif
6615 
6616     if (checkclearopq(cap->oap))
6617 	return;
6618 
6619     if (lineempty(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
6620     {
6621 	clearopbeep(cap->oap);
6622 	return;
6623     }
6624 
6625     prep_redo_cmd(cap);
6626 
6627     if (u_save_cursor() == FAIL)
6628 	return;
6629 
6630     startpos = curwin->w_cursor;
6631 #ifdef FEAT_NETBEANS_INTG
6632     pos = startpos;
6633 #endif
6634     for (n = cap->count1; n > 0; --n)
6635     {
6636 	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
6637 	inc_cursor();
6638 	if (gchar_cursor() == NUL)
6639 	{
6640 	    if (vim_strchr(p_ww, '~') != NULL
6641 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
6642 	    {
6643 #ifdef FEAT_NETBEANS_INTG
6644 		if (usingNetbeans)
6645 		{
6646 		    if (did_change)
6647 		    {
6648 			ptr = ml_get(pos.lnum);
6649 			count = STRLEN(ptr) - pos.col;
6650 			netbeans_removed(curbuf, pos.lnum, pos.col,
6651 								 (long)count);
6652 			netbeans_inserted(curbuf, pos.lnum, pos.col,
6653 							&ptr[pos.col], count);
6654 		    }
6655 		    pos.col = 0;
6656 		    pos.lnum++;
6657 		}
6658 #endif
6659 		++curwin->w_cursor.lnum;
6660 		curwin->w_cursor.col = 0;
6661 		if (n > 1)
6662 		{
6663 		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
6664 			break;
6665 		    u_clearline();
6666 		}
6667 	    }
6668 	    else
6669 		break;
6670 	}
6671     }
6672 #ifdef FEAT_NETBEANS_INTG
6673     if (did_change && usingNetbeans)
6674     {
6675 	ptr = ml_get(pos.lnum);
6676 	count = curwin->w_cursor.col - pos.col;
6677 	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
6678 	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
6679     }
6680 #endif
6681 
6682 
6683     check_cursor();
6684     curwin->w_set_curswant = TRUE;
6685     if (did_change)
6686     {
6687 	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
6688 									  0L);
6689 	curbuf->b_op_start = startpos;
6690 	curbuf->b_op_end = curwin->w_cursor;
6691 	if (curbuf->b_op_end.col > 0)
6692 	    --curbuf->b_op_end.col;
6693     }
6694 }
6695 
6696 /*
6697  * Move cursor to mark.
6698  */
6699     static void
6700 nv_cursormark(cap, flag, pos)
6701     cmdarg_T	*cap;
6702     int		flag;
6703     pos_T	*pos;
6704 {
6705     if (check_mark(pos) == FAIL)
6706 	clearop(cap->oap);
6707     else
6708     {
6709 	if (cap->cmdchar == '\''
6710 		|| cap->cmdchar == '`'
6711 		|| cap->cmdchar == '['
6712 		|| cap->cmdchar == ']')
6713 	    setpcmark();
6714 	curwin->w_cursor = *pos;
6715 	if (flag)
6716 	    beginline(BL_WHITE | BL_FIX);
6717 	else
6718 	    check_cursor();
6719     }
6720     cap->oap->motion_type = flag ? MLINE : MCHAR;
6721     if (cap->cmdchar == '`')
6722 	cap->oap->use_reg_one = TRUE;
6723     cap->oap->inclusive = FALSE;		/* ignored if not MCHAR */
6724     curwin->w_set_curswant = TRUE;
6725 }
6726 
6727 #ifdef FEAT_VISUAL
6728 /*
6729  * Handle commands that are operators in Visual mode.
6730  */
6731     static void
6732 v_visop(cap)
6733     cmdarg_T	*cap;
6734 {
6735     static char_u trans[] = "YyDdCcxdXdAAIIrr";
6736 
6737     /* Uppercase means linewise, except in block mode, then "D" deletes till
6738      * the end of the line, and "C" replaces til EOL */
6739     if (isupper(cap->cmdchar))
6740     {
6741 	if (VIsual_mode != Ctrl_V)
6742 	    VIsual_mode = 'V';
6743 	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
6744 	    curwin->w_curswant = MAXCOL;
6745     }
6746     cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
6747     nv_operator(cap);
6748 }
6749 #endif
6750 
6751 /*
6752  * "s" and "S" commands.
6753  */
6754     static void
6755 nv_subst(cap)
6756     cmdarg_T	*cap;
6757 {
6758 #ifdef FEAT_VISUAL
6759     if (VIsual_active)	/* "vs" and "vS" are the same as "vc" */
6760     {
6761 	if (cap->cmdchar == 'S')
6762 	    VIsual_mode = 'V';
6763 	cap->cmdchar = 'c';
6764 	nv_operator(cap);
6765     }
6766     else
6767 #endif
6768 	nv_optrans(cap);
6769 }
6770 
6771 /*
6772  * Abbreviated commands.
6773  */
6774     static void
6775 nv_abbrev(cap)
6776     cmdarg_T	*cap;
6777 {
6778     if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
6779 	cap->cmdchar = 'x';		/* DEL key behaves like 'x' */
6780 
6781 #ifdef FEAT_VISUAL
6782     /* in Visual mode these commands are operators */
6783     if (VIsual_active)
6784 	v_visop(cap);
6785     else
6786 #endif
6787 	nv_optrans(cap);
6788 }
6789 
6790 /*
6791  * Translate a command into another command.
6792  */
6793     static void
6794 nv_optrans(cap)
6795     cmdarg_T	*cap;
6796 {
6797     static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
6798 			      (char_u *)"d$", (char_u *)"c$",
6799 			      (char_u *)"cl", (char_u *)"cc",
6800 			      (char_u *)"yy", (char_u *)":s\r"};
6801     static char_u *str = (char_u *)"xXDCsSY&";
6802 
6803     if (!checkclearopq(cap->oap))
6804     {
6805 	/* In Vi "2D" doesn't delete the next line.  Can't translate it
6806 	 * either, because "2." should also not use the count. */
6807 	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
6808 	{
6809 	    cap->oap->start = curwin->w_cursor;
6810 	    cap->oap->op_type = OP_DELETE;
6811 	    cap->count1 = 1;
6812 	    nv_dollar(cap);
6813 	    finish_op = TRUE;
6814 	    ResetRedobuff();
6815 	    AppendCharToRedobuff('D');
6816 	}
6817 	else
6818 	{
6819 	    if (cap->count0)
6820 		stuffnumReadbuff(cap->count0);
6821 	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
6822 	}
6823     }
6824     cap->opcount = 0;
6825 }
6826 
6827 /*
6828  * "'" and "`" commands.  Also for "g'" and "g`".
6829  * cap->arg is TRUE for "'" and "g'".
6830  */
6831     static void
6832 nv_gomark(cap)
6833     cmdarg_T	*cap;
6834 {
6835     pos_T	*pos;
6836     int		c;
6837 #ifdef FEAT_FOLDING
6838     linenr_T	lnum = curwin->w_cursor.lnum;
6839     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
6840 #endif
6841 
6842     if (cap->cmdchar == 'g')
6843 	c = cap->extra_char;
6844     else
6845 	c = cap->nchar;
6846     pos = getmark(c, (cap->oap->op_type == OP_NOP));
6847     if (pos == (pos_T *)-1)	    /* jumped to other file */
6848     {
6849 	if (cap->arg)
6850 	{
6851 	    check_cursor_lnum();
6852 	    beginline(BL_WHITE | BL_FIX);
6853 	}
6854 	else
6855 	    check_cursor();
6856     }
6857     else
6858 	nv_cursormark(cap, cap->arg, pos);
6859 
6860 #ifdef FEAT_VIRTUALEDIT
6861     /* May need to clear the coladd that a mark includes. */
6862     if (!virtual_active())
6863 	curwin->w_cursor.coladd = 0;
6864 #endif
6865 #ifdef FEAT_FOLDING
6866     if (cap->oap->op_type == OP_NOP
6867 	    && (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
6868 	    && (fdo_flags & FDO_MARK)
6869 	    && old_KeyTyped)
6870 	foldOpenCursor();
6871 #endif
6872 }
6873 
6874 /*
6875  * Handle CTRL-O, CTRL-I, "g;" and "g," commands.
6876  */
6877     static void
6878 nv_pcmark(cap)
6879     cmdarg_T	*cap;
6880 {
6881 #ifdef FEAT_JUMPLIST
6882     pos_T	*pos;
6883 # ifdef FEAT_FOLDING
6884     linenr_T	lnum = curwin->w_cursor.lnum;
6885     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
6886 # endif
6887 
6888     if (!checkclearopq(cap->oap))
6889     {
6890 	if (cap->cmdchar == 'g')
6891 	    pos = movechangelist((int)cap->count1);
6892 	else
6893 	    pos = movemark((int)cap->count1);
6894 	if (pos == (pos_T *)-1)		/* jump to other file */
6895 	{
6896 	    curwin->w_set_curswant = TRUE;
6897 	    check_cursor();
6898 	}
6899 	else if (pos != NULL)		    /* can jump */
6900 	    nv_cursormark(cap, FALSE, pos);
6901 	else if (cap->cmdchar == 'g')
6902 	{
6903 	    if (curbuf->b_changelistlen == 0)
6904 		EMSG(_("E664: changelist is empty"));
6905 	    else if (cap->count1 < 0)
6906 		EMSG(_("E662: At start of changelist"));
6907 	    else
6908 		EMSG(_("E663: At end of changelist"));
6909 	}
6910 	else
6911 	    clearopbeep(cap->oap);
6912 # ifdef FEAT_FOLDING
6913 	if (cap->oap->op_type == OP_NOP
6914 		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
6915 		&& (fdo_flags & FDO_MARK)
6916 		&& old_KeyTyped)
6917 	    foldOpenCursor();
6918 # endif
6919     }
6920 #else
6921     clearopbeep(cap->oap);
6922 #endif
6923 }
6924 
6925 /*
6926  * Handle '"' command.
6927  */
6928     static void
6929 nv_regname(cap)
6930     cmdarg_T	*cap;
6931 {
6932     if (checkclearop(cap->oap))
6933 	return;
6934 #ifdef FEAT_EVAL
6935     if (cap->nchar == '=')
6936 	cap->nchar = get_expr_register();
6937 #endif
6938     if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
6939     {
6940 	cap->oap->regname = cap->nchar;
6941 	cap->opcount = cap->count0;	/* remember count before '"' */
6942 #ifdef FEAT_EVAL
6943 	set_reg_var(cap->oap->regname);
6944 #endif
6945     }
6946     else
6947 	clearopbeep(cap->oap);
6948 }
6949 
6950 #ifdef FEAT_VISUAL
6951 /*
6952  * Handle "v", "V" and "CTRL-V" commands.
6953  * Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
6954  * is TRUE.
6955  * Handle CTRL-Q just like CTRL-V.
6956  */
6957     static void
6958 nv_visual(cap)
6959     cmdarg_T	*cap;
6960 {
6961     if (cap->cmdchar == Ctrl_Q)
6962 	cap->cmdchar = Ctrl_V;
6963 
6964     /* 'v', 'V' and CTRL-V can be used while an operator is pending to make it
6965      * characterwise, linewise, or blockwise. */
6966     if (cap->oap->op_type != OP_NOP)
6967     {
6968 	cap->oap->motion_force = cap->cmdchar;
6969 	finish_op = FALSE;	/* operator doesn't finish now but later */
6970 	return;
6971     }
6972 
6973     VIsual_select = cap->arg;
6974     if (VIsual_active)	    /* change Visual mode */
6975     {
6976 	if (VIsual_mode == cap->cmdchar)    /* stop visual mode */
6977 	    end_visual_mode();
6978 	else				    /* toggle char/block mode */
6979 	{				    /*	   or char/line mode */
6980 	    VIsual_mode = cap->cmdchar;
6981 	    showmode();
6982 	}
6983 	redraw_curbuf_later(INVERTED);	    /* update the inversion */
6984     }
6985     else		    /* start Visual mode */
6986     {
6987 	check_visual_highlight();
6988 	if (cap->count0)		    /* use previously selected part */
6989 	{
6990 	    if (resel_VIsual_mode == NUL)   /* there is none */
6991 	    {
6992 		beep_flush();
6993 		return;
6994 	    }
6995 	    VIsual = curwin->w_cursor;
6996 
6997 	    VIsual_active = TRUE;
6998 	    VIsual_reselect = TRUE;
6999 	    if (!cap->arg)
7000 		/* start Select mode when 'selectmode' contains "cmd" */
7001 		may_start_select('c');
7002 #ifdef FEAT_MOUSE
7003 	    setmouse();
7004 #endif
7005 	    if (p_smd)
7006 		redraw_cmdline = TRUE;	    /* show visual mode later */
7007 	    /*
7008 	     * For V and ^V, we multiply the number of lines even if there
7009 	     * was only one -- webb
7010 	     */
7011 	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
7012 	    {
7013 		curwin->w_cursor.lnum +=
7014 				    resel_VIsual_line_count * cap->count0 - 1;
7015 		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
7016 		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
7017 	    }
7018 	    VIsual_mode = resel_VIsual_mode;
7019 	    if (VIsual_mode == 'v')
7020 	    {
7021 		if (resel_VIsual_line_count <= 1)
7022 		    curwin->w_cursor.col += resel_VIsual_col * cap->count0 - 1;
7023 		else
7024 		    curwin->w_cursor.col = resel_VIsual_col;
7025 		check_cursor_col();
7026 	    }
7027 	    if (resel_VIsual_col == MAXCOL)
7028 	    {
7029 		curwin->w_curswant = MAXCOL;
7030 		coladvance((colnr_T)MAXCOL);
7031 	    }
7032 	    else if (VIsual_mode == Ctrl_V)
7033 	    {
7034 		validate_virtcol();
7035 		curwin->w_curswant = curwin->w_virtcol
7036 					 + resel_VIsual_col * cap->count0 - 1;
7037 		coladvance(curwin->w_curswant);
7038 	    }
7039 	    else
7040 		curwin->w_set_curswant = TRUE;
7041 	    redraw_curbuf_later(INVERTED);	/* show the inversion */
7042 	}
7043 	else
7044 	{
7045 	    if (!cap->arg)
7046 		/* start Select mode when 'selectmode' contains "cmd" */
7047 		may_start_select('c');
7048 	    n_start_visual_mode(cap->cmdchar);
7049 	}
7050     }
7051 }
7052 
7053 /*
7054  * Start selection for Shift-movement keys.
7055  */
7056     void
7057 start_selection()
7058 {
7059     /* if 'selectmode' contains "key", start Select mode */
7060     may_start_select('k');
7061     n_start_visual_mode('v');
7062 }
7063 
7064 /*
7065  * Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
7066  */
7067     void
7068 may_start_select(c)
7069     int		c;
7070 {
7071     VIsual_select = (stuff_empty() && typebuf_typed()
7072 		    && (vim_strchr(p_slm, c) != NULL));
7073 }
7074 
7075 /*
7076  * Start Visual mode "c".
7077  * Should set VIsual_select before calling this.
7078  */
7079     static void
7080 n_start_visual_mode(c)
7081     int		c;
7082 {
7083     VIsual_mode = c;
7084     VIsual_active = TRUE;
7085     VIsual_reselect = TRUE;
7086 #ifdef FEAT_VIRTUALEDIT
7087     /* Corner case: the 0 position in a tab may change when going into
7088      * virtualedit.  Recalculate curwin->w_cursor to avoid bad hilighting.
7089      */
7090     if (c == Ctrl_V && (ve_flags & VE_BLOCK) && gchar_cursor() == TAB)
7091 	coladvance(curwin->w_virtcol);
7092 #endif
7093     VIsual = curwin->w_cursor;
7094 
7095 #ifdef FEAT_FOLDING
7096     foldAdjustVisual();
7097 #endif
7098 
7099 #ifdef FEAT_MOUSE
7100     setmouse();
7101 #endif
7102     if (p_smd)
7103 	redraw_cmdline = TRUE;	/* show visual mode later */
7104 #ifdef FEAT_CLIPBOARD
7105     /* Make sure the clipboard gets updated.  Needed because start and
7106      * end may still be the same, and the selection needs to be owned */
7107     clip_star.vmode = NUL;
7108 #endif
7109 
7110     /* Only need to redraw this line, unless still need to redraw an old
7111      * Visual area (when 'lazyredraw' is set). */
7112     if (curwin->w_redr_type < INVERTED)
7113     {
7114 	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
7115 	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
7116     }
7117 }
7118 
7119 #endif /* FEAT_VISUAL */
7120 
7121 /*
7122  * CTRL-W: Window commands
7123  */
7124     static void
7125 nv_window(cap)
7126     cmdarg_T	*cap;
7127 {
7128 #ifdef FEAT_WINDOWS
7129     if (!checkclearop(cap->oap))
7130 	do_window(cap->nchar, cap->count0, NUL); /* everything is in window.c */
7131 #else
7132     (void)checkclearop(cap->oap);
7133 #endif
7134 }
7135 
7136 /*
7137  * CTRL-Z: Suspend
7138  */
7139     static void
7140 nv_suspend(cap)
7141     cmdarg_T	*cap;
7142 {
7143     clearop(cap->oap);
7144 #ifdef FEAT_VISUAL
7145     if (VIsual_active)
7146 	end_visual_mode();		/* stop Visual mode */
7147 #endif
7148     do_cmdline_cmd((char_u *)"st");
7149 }
7150 
7151 /*
7152  * Commands starting with "g".
7153  */
7154     static void
7155 nv_g_cmd(cap)
7156     cmdarg_T	*cap;
7157 {
7158     oparg_T	*oap = cap->oap;
7159 #ifdef FEAT_VISUAL
7160     pos_T	tpos;
7161 #endif
7162     int		i;
7163     int		flag = FALSE;
7164 
7165     switch (cap->nchar)
7166     {
7167 #ifdef MEM_PROFILE
7168     /*
7169      * "g^A": dump log of used memory.
7170      */
7171     case Ctrl_A:
7172 	vim_mem_profile_dump();
7173 	break;
7174 #endif
7175 
7176 #ifdef FEAT_VREPLACE
7177     /*
7178      * "gR": Enter virtual replace mode.
7179      */
7180     case 'R':
7181 	cap->arg = TRUE;
7182 	nv_Replace(cap);
7183 	break;
7184 
7185     case 'r':
7186 	nv_vreplace(cap);
7187 	break;
7188 #endif
7189 
7190     case '&':
7191 	do_cmdline_cmd((char_u *)"%s//~/&");
7192 	break;
7193 
7194 #ifdef FEAT_VISUAL
7195     /*
7196      * "gv": Reselect the previous Visual area.  If Visual already active,
7197      *	     exchange previous and current Visual area.
7198      */
7199     case 'v':
7200 	if (checkclearop(oap))
7201 	    break;
7202 
7203 	if (	   curbuf->b_visual_start.lnum == 0
7204 		|| curbuf->b_visual_start.lnum > curbuf->b_ml.ml_line_count
7205 		|| curbuf->b_visual_end.lnum == 0)
7206 	    beep_flush();
7207 	else
7208 	{
7209 	    /* set w_cursor to the start of the Visual area, tpos to the end */
7210 	    if (VIsual_active)
7211 	    {
7212 		i = VIsual_mode;
7213 		VIsual_mode = curbuf->b_visual_mode;
7214 		curbuf->b_visual_mode = i;
7215 # ifdef FEAT_EVAL
7216 		curbuf->b_visual_mode_eval = i;
7217 # endif
7218 		i = curwin->w_curswant;
7219 		curwin->w_curswant = curbuf->b_visual_curswant;
7220 		curbuf->b_visual_curswant = i;
7221 
7222 		tpos = curbuf->b_visual_end;
7223 		curbuf->b_visual_end = curwin->w_cursor;
7224 		curwin->w_cursor = curbuf->b_visual_start;
7225 		curbuf->b_visual_start = VIsual;
7226 	    }
7227 	    else
7228 	    {
7229 		VIsual_mode = curbuf->b_visual_mode;
7230 		curwin->w_curswant = curbuf->b_visual_curswant;
7231 		tpos = curbuf->b_visual_end;
7232 		curwin->w_cursor = curbuf->b_visual_start;
7233 	    }
7234 
7235 	    VIsual_active = TRUE;
7236 	    VIsual_reselect = TRUE;
7237 
7238 	    /* Set Visual to the start and w_cursor to the end of the Visual
7239 	     * area.  Make sure they are on an existing character. */
7240 	    check_cursor();
7241 	    VIsual = curwin->w_cursor;
7242 	    curwin->w_cursor = tpos;
7243 	    check_cursor();
7244 	    update_topline();
7245 	    /*
7246 	     * When called from normal "g" command: start Select mode when
7247 	     * 'selectmode' contains "cmd".  When called for K_SELECT, always
7248 	     * start Select mode.
7249 	     */
7250 	    if (cap->arg)
7251 		VIsual_select = TRUE;
7252 	    else
7253 		may_start_select('c');
7254 #ifdef FEAT_MOUSE
7255 	    setmouse();
7256 #endif
7257 #ifdef FEAT_CLIPBOARD
7258 	    /* Make sure the clipboard gets updated.  Needed because start and
7259 	     * end are still the same, and the selection needs to be owned */
7260 	    clip_star.vmode = NUL;
7261 #endif
7262 	    redraw_curbuf_later(INVERTED);
7263 	    showmode();
7264 	}
7265 	break;
7266     /*
7267      * "gV": Don't reselect the previous Visual area after a Select mode
7268      *	     mapping of menu.
7269      */
7270     case 'V':
7271 	VIsual_reselect = FALSE;
7272 	break;
7273 
7274     /*
7275      * "gh":  start Select mode.
7276      * "gH":  start Select line mode.
7277      * "g^H": start Select block mode.
7278      */
7279     case K_BS:
7280 	cap->nchar = Ctrl_H;
7281 	/* FALLTHROUGH */
7282     case 'h':
7283     case 'H':
7284     case Ctrl_H:
7285 # ifdef EBCDIC
7286 	/* EBCDIC: 'v'-'h' != '^v'-'^h' */
7287 	if (cap->nchar == Ctrl_H)
7288 	    cap->cmdchar = Ctrl_V;
7289 	else
7290 # endif
7291 	cap->cmdchar = cap->nchar + ('v' - 'h');
7292 	cap->arg = TRUE;
7293 	nv_visual(cap);
7294 	break;
7295 #endif /* FEAT_VISUAL */
7296 
7297     /*
7298      * "gj" and "gk" two new funny movement keys -- up and down
7299      * movement based on *screen* line rather than *file* line.
7300      */
7301     case 'j':
7302     case K_DOWN:
7303 	/* with 'nowrap' it works just like the normal "j" command; also when
7304 	 * in a closed fold */
7305 	if (!curwin->w_p_wrap
7306 #ifdef FEAT_FOLDING
7307 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7308 #endif
7309 		)
7310 	{
7311 	    oap->motion_type = MLINE;
7312 	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
7313 	}
7314 	else
7315 	    i = nv_screengo(oap, FORWARD, cap->count1);
7316 	if (i == FAIL)
7317 	    clearopbeep(oap);
7318 	break;
7319 
7320     case 'k':
7321     case K_UP:
7322 	/* with 'nowrap' it works just like the normal "k" command; also when
7323 	 * in a closed fold */
7324 	if (!curwin->w_p_wrap
7325 #ifdef FEAT_FOLDING
7326 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7327 #endif
7328 	   )
7329 	{
7330 	    oap->motion_type = MLINE;
7331 	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
7332 	}
7333 	else
7334 	    i = nv_screengo(oap, BACKWARD, cap->count1);
7335 	if (i == FAIL)
7336 	    clearopbeep(oap);
7337 	break;
7338 
7339     /*
7340      * "gJ": join two lines without inserting a space.
7341      */
7342     case 'J':
7343 	nv_join(cap);
7344 	break;
7345 
7346     /*
7347      * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
7348      * "gm": middle of "g0" and "g$".
7349      */
7350     case '^':
7351 	flag = TRUE;
7352 	/* FALLTHROUGH */
7353 
7354     case '0':
7355     case 'm':
7356     case K_HOME:
7357     case K_KHOME:
7358 	oap->motion_type = MCHAR;
7359 	oap->inclusive = FALSE;
7360 	if (curwin->w_p_wrap
7361 #ifdef FEAT_VERTSPLIT
7362 		&& curwin->w_width != 0
7363 #endif
7364 		)
7365 	{
7366 	    int		width1 = W_WIDTH(curwin) - curwin_col_off();
7367 	    int		width2 = width1 + curwin_col_off2();
7368 
7369 	    validate_virtcol();
7370 	    i = 0;
7371 	    if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
7372 		i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
7373 	}
7374 	else
7375 	    i = curwin->w_leftcol;
7376 	/* Go to the middle of the screen line.  When 'number' is on and lines
7377 	 * are wrapping the middle can be more to the left.*/
7378 	if (cap->nchar == 'm')
7379 	    i += (W_WIDTH(curwin) - curwin_col_off()
7380 		    + ((curwin->w_p_wrap && i > 0)
7381 			? curwin_col_off2() : 0)) / 2;
7382 	coladvance((colnr_T)i);
7383 	if (flag)
7384 	{
7385 	    do
7386 		i = gchar_cursor();
7387 	    while (vim_iswhite(i) && oneright() == OK);
7388 	}
7389 	curwin->w_set_curswant = TRUE;
7390 	break;
7391 
7392     case '_':
7393 	/* "g_": to the last non-blank character in the line or <count> lines
7394 	 * downward. */
7395 	cap->oap->motion_type = MCHAR;
7396 	cap->oap->inclusive = TRUE;
7397 	curwin->w_curswant = MAXCOL;
7398 	if (cursor_down((long)(cap->count1 - 1),
7399 					 cap->oap->op_type == OP_NOP) == FAIL)
7400 	    clearopbeep(cap->oap);
7401 	else
7402 	{
7403 	    char_u  *ptr = ml_get_curline();
7404 
7405 	    /* In Visual mode we may end up after the line. */
7406 	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
7407 		--curwin->w_cursor.col;
7408 
7409 	    /* Decrease the cursor column until it's on a non-blank. */
7410 	    while (curwin->w_cursor.col > 0
7411 				    && vim_iswhite(ptr[curwin->w_cursor.col]))
7412 		--curwin->w_cursor.col;
7413 	    curwin->w_set_curswant = TRUE;
7414 	}
7415 	break;
7416 
7417     case '$':
7418     case K_END:
7419     case K_KEND:
7420 	{
7421 	    int col_off = curwin_col_off();
7422 
7423 	    oap->motion_type = MCHAR;
7424 	    oap->inclusive = TRUE;
7425 	    if (curwin->w_p_wrap
7426 #ifdef FEAT_VERTSPLIT
7427 		    && curwin->w_width != 0
7428 #endif
7429 	       )
7430 	    {
7431 		curwin->w_curswant = MAXCOL;    /* so we stay at the end */
7432 		if (cap->count1 == 1)
7433 		{
7434 		    int		width1 = W_WIDTH(curwin) - col_off;
7435 		    int		width2 = width1 + curwin_col_off2();
7436 
7437 		    validate_virtcol();
7438 		    i = width1 - 1;
7439 		    if (curwin->w_virtcol >= (colnr_T)width1)
7440 			i += ((curwin->w_virtcol - width1) / width2 + 1)
7441 								     * width2;
7442 		    coladvance((colnr_T)i);
7443 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
7444 		    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
7445 		    {
7446 			/*
7447 			 * Check for landing on a character that got split at
7448 			 * the end of the line.  We do not want to advance to
7449 			 * the next screen line.
7450 			 */
7451 			validate_virtcol();
7452 			if (curwin->w_virtcol > (colnr_T)i)
7453 			    --curwin->w_cursor.col;
7454 		    }
7455 #endif
7456 		}
7457 		else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
7458 		    clearopbeep(oap);
7459 	    }
7460 	    else
7461 	    {
7462 		i = curwin->w_leftcol + W_WIDTH(curwin) - col_off - 1;
7463 		coladvance((colnr_T)i);
7464 
7465 		/* Make sure we stick in this column. */
7466 		validate_virtcol();
7467 		curwin->w_curswant = curwin->w_virtcol;
7468 		curwin->w_set_curswant = FALSE;
7469 	    }
7470 	}
7471 	break;
7472 
7473     /*
7474      * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
7475      */
7476     case '*':
7477     case '#':
7478 #if POUND != '#'
7479     case POUND:		/* pound sign (sometimes equal to '#') */
7480 #endif
7481     case Ctrl_RSB:		/* :tag or :tselect for current identifier */
7482     case ']':			/* :tselect for current identifier */
7483 	nv_ident(cap);
7484 	break;
7485 
7486     /*
7487      * ge and gE: go back to end of word
7488      */
7489     case 'e':
7490     case 'E':
7491 	oap->motion_type = MCHAR;
7492 	curwin->w_set_curswant = TRUE;
7493 	oap->inclusive = TRUE;
7494 	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
7495 	    clearopbeep(oap);
7496 	break;
7497 
7498     /*
7499      * "g CTRL-G": display info about cursor position
7500      */
7501     case Ctrl_G:
7502 	cursor_pos_info();
7503 	break;
7504 
7505     /*
7506      * "gi": start Insert at the last position.
7507      */
7508     case 'i':
7509 	if (curbuf->b_last_insert.lnum != 0)
7510 	{
7511 	    curwin->w_cursor = curbuf->b_last_insert;
7512 	    check_cursor_lnum();
7513 	    i = (int)STRLEN(ml_get_curline());
7514 	    if (curwin->w_cursor.col > (colnr_T)i)
7515 	    {
7516 #ifdef FEAT_VIRTUALEDIT
7517 		if (virtual_active())
7518 		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
7519 #endif
7520 		curwin->w_cursor.col = i;
7521 	    }
7522 	}
7523 	cap->cmdchar = 'i';
7524 	nv_edit(cap);
7525 	break;
7526 
7527     /*
7528      * "gI": Start insert in column 1.
7529      */
7530     case 'I':
7531 	beginline(0);
7532 	if (!checkclearopq(oap))
7533 	    invoke_edit(cap, FALSE, 'g', FALSE);
7534 	break;
7535 
7536 #ifdef FEAT_SEARCHPATH
7537     /*
7538      * "gf": goto file, edit file under cursor
7539      * "]f" and "[f": can also be used.
7540      */
7541     case 'f':
7542 	nv_gotofile(cap);
7543 	break;
7544 #endif
7545 
7546 	/* "g'm" and "g`m": jump to mark without setting pcmark */
7547     case '\'':
7548 	cap->arg = TRUE;
7549 	/*FALLTHROUGH*/
7550     case '`':
7551 	nv_gomark(cap);
7552 	break;
7553 
7554     /*
7555      * "gs": Goto sleep.
7556      */
7557     case 's':
7558 	do_sleep(cap->count1 * 1000L);
7559 	break;
7560 
7561     /*
7562      * "ga": Display the ascii value of the character under the
7563      * cursor.	It is displayed in decimal, hex, and octal. -- webb
7564      */
7565     case 'a':
7566 	do_ascii(NULL);
7567 	break;
7568 
7569 #ifdef FEAT_MBYTE
7570     /*
7571      * "g8": Display the bytes used for the UTF-8 character under the
7572      * cursor.	It is displayed in hex.
7573      */
7574     case '8':
7575 	show_utf8();
7576 	break;
7577 #endif
7578 
7579     case '<':
7580 	show_sb_text();
7581 	break;
7582 
7583     /*
7584      * "gg": Goto the first line in file.  With a count it goes to
7585      * that line number like for "G". -- webb
7586      */
7587     case 'g':
7588 	cap->arg = FALSE;
7589 	nv_goto(cap);
7590 	break;
7591 
7592     /*
7593      *	 Two-character operators:
7594      *	 "gq"	    Format text
7595      *	 "gw"	    Format text and keep cursor position
7596      *	 "g~"	    Toggle the case of the text.
7597      *	 "gu"	    Change text to lower case.
7598      *	 "gU"	    Change text to upper case.
7599      *   "g?"	    rot13 encoding
7600      */
7601     case 'q':
7602     case 'w':
7603 	oap->cursor_start = curwin->w_cursor;
7604 	/*FALLTHROUGH*/
7605     case '~':
7606     case 'u':
7607     case 'U':
7608     case '?':
7609 	nv_operator(cap);
7610 	break;
7611 
7612     /*
7613      * "gd": Find first occurence of pattern under the cursor in the
7614      *	 current function
7615      * "gD": idem, but in the current file.
7616      */
7617     case 'd':
7618     case 'D':
7619 	nv_gd(oap, cap->nchar);
7620 	break;
7621 
7622 #ifdef FEAT_MOUSE
7623     /*
7624      * g<*Mouse> : <C-*mouse>
7625      */
7626     case K_MIDDLEMOUSE:
7627     case K_MIDDLEDRAG:
7628     case K_MIDDLERELEASE:
7629     case K_LEFTMOUSE:
7630     case K_LEFTDRAG:
7631     case K_LEFTRELEASE:
7632     case K_RIGHTMOUSE:
7633     case K_RIGHTDRAG:
7634     case K_RIGHTRELEASE:
7635     case K_X1MOUSE:
7636     case K_X1DRAG:
7637     case K_X1RELEASE:
7638     case K_X2MOUSE:
7639     case K_X2DRAG:
7640     case K_X2RELEASE:
7641 	mod_mask = MOD_MASK_CTRL;
7642 	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
7643 	break;
7644 #endif
7645 
7646     case K_IGNORE:
7647 	break;
7648 
7649     /*
7650      * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
7651      */
7652     case 'p':
7653     case 'P':
7654 	nv_put(cap);
7655 	break;
7656 
7657 #ifdef FEAT_BYTEOFF
7658     /* "go": goto byte count from start of buffer */
7659     case 'o':
7660 	goto_byte(cap->count0);
7661 	break;
7662 #endif
7663 
7664     /* "gQ": improved Ex mode */
7665     case 'Q':
7666 #ifdef FEAT_CMDWIN
7667 	if (cmdwin_type != 0)
7668 	{
7669 	    clearopbeep(cap->oap);
7670 	    break;
7671 	}
7672 #endif
7673 	if (!checkclearopq(oap))
7674 	    do_exmode(TRUE);
7675 	break;
7676 
7677 #ifdef FEAT_JUMPLIST
7678     case ',':
7679 	nv_pcmark(cap);
7680 	break;
7681 
7682     case ';':
7683 	cap->count1 = -cap->count1;
7684 	nv_pcmark(cap);
7685 	break;
7686 #endif
7687 
7688     default:
7689 	clearopbeep(oap);
7690 	break;
7691     }
7692 }
7693 
7694 /*
7695  * Handle "o" and "O" commands.
7696  */
7697     static void
7698 n_opencmd(cap)
7699     cmdarg_T	*cap;
7700 {
7701     if (!checkclearopq(cap->oap))
7702     {
7703 #ifdef FEAT_FOLDING
7704 	if (cap->cmdchar == 'O')
7705 	    /* Open above the first line of a folded sequence of lines */
7706 	    (void)hasFolding(curwin->w_cursor.lnum,
7707 						&curwin->w_cursor.lnum, NULL);
7708 	else
7709 	    /* Open below the last line of a folded sequence of lines */
7710 	    (void)hasFolding(curwin->w_cursor.lnum,
7711 						NULL, &curwin->w_cursor.lnum);
7712 #endif
7713 	if (u_save((linenr_T)(curwin->w_cursor.lnum -
7714 					       (cap->cmdchar == 'O' ? 1 : 0)),
7715 		   (linenr_T)(curwin->w_cursor.lnum +
7716 					       (cap->cmdchar == 'o' ? 1 : 0))
7717 		       ) == OK
7718 		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
7719 #ifdef FEAT_COMMENTS
7720 		    has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM :
7721 #endif
7722 		    0, 0))
7723 	{
7724 	    /* When '#' is in 'cpoptions' ignore the count. */
7725 	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
7726 		cap->count1 = 1;
7727 	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
7728 	}
7729     }
7730 }
7731 
7732 /*
7733  * "." command: redo last change.
7734  */
7735     static void
7736 nv_dot(cap)
7737     cmdarg_T	*cap;
7738 {
7739     if (!checkclearopq(cap->oap))
7740     {
7741 	/*
7742 	 * If "restart_edit" is TRUE, the last but one command is repeated
7743 	 * instead of the last command (inserting text). This is used for
7744 	 * CTRL-O <.> in insert mode.
7745 	 */
7746 	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
7747 	    clearopbeep(cap->oap);
7748     }
7749 }
7750 
7751 /*
7752  * CTRL-R: undo undo
7753  */
7754     static void
7755 nv_redo(cap)
7756     cmdarg_T	*cap;
7757 {
7758     if (!checkclearopq(cap->oap))
7759     {
7760 	u_redo((int)cap->count1);
7761 	curwin->w_set_curswant = TRUE;
7762     }
7763 }
7764 
7765 /*
7766  * Handle "U" command.
7767  */
7768     static void
7769 nv_Undo(cap)
7770     cmdarg_T	*cap;
7771 {
7772     /* In Visual mode and typing "gUU" triggers an operator */
7773     if (cap->oap->op_type == OP_UPPER
7774 #ifdef FEAT_VISUAL
7775 	    || VIsual_active
7776 #endif
7777 	    )
7778     {
7779 	/* translate "gUU" to "gUgU" */
7780 	cap->cmdchar = 'g';
7781 	cap->nchar = 'U';
7782 	nv_operator(cap);
7783     }
7784     else if (!checkclearopq(cap->oap))
7785     {
7786 	u_undoline();
7787 	curwin->w_set_curswant = TRUE;
7788     }
7789 }
7790 
7791 /*
7792  * '~' command: If tilde is not an operator and Visual is off: swap case of a
7793  * single character.
7794  */
7795     static void
7796 nv_tilde(cap)
7797     cmdarg_T	*cap;
7798 {
7799     if (!p_to
7800 #ifdef FEAT_VISUAL
7801 	    && !VIsual_active
7802 #endif
7803 	    && cap->oap->op_type != OP_TILDE)
7804 	n_swapchar(cap);
7805     else
7806 	nv_operator(cap);
7807 }
7808 
7809 /*
7810  * Handle an operator command.
7811  * The actual work is done by do_pending_operator().
7812  */
7813     static void
7814 nv_operator(cap)
7815     cmdarg_T	*cap;
7816 {
7817     int	    op_type;
7818 
7819     op_type = get_op_type(cap->cmdchar, cap->nchar);
7820 
7821     if (op_type == cap->oap->op_type)	    /* double operator works on lines */
7822 	nv_lineop(cap);
7823     else if (!checkclearop(cap->oap))
7824     {
7825 	cap->oap->start = curwin->w_cursor;
7826 	cap->oap->op_type = op_type;
7827     }
7828 }
7829 
7830 /*
7831  * Handle linewise operator "dd", "yy", etc.
7832  *
7833  * "_" is is a strange motion command that helps make operators more logical.
7834  * It is actually implemented, but not documented in the real Vi.  This motion
7835  * command actually refers to "the current line".  Commands like "dd" and "yy"
7836  * are really an alternate form of "d_" and "y_".  It does accept a count, so
7837  * "d3_" works to delete 3 lines.
7838  */
7839     static void
7840 nv_lineop(cap)
7841     cmdarg_T	*cap;
7842 {
7843     cap->oap->motion_type = MLINE;
7844     if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
7845 	clearopbeep(cap->oap);
7846     else if (  cap->oap->op_type == OP_DELETE
7847 	    || cap->oap->op_type == OP_LSHIFT
7848 	    || cap->oap->op_type == OP_RSHIFT)
7849 	beginline(BL_SOL | BL_FIX);
7850     else if (cap->oap->op_type != OP_YANK)	/* 'Y' does not move cursor */
7851 	beginline(BL_WHITE | BL_FIX);
7852 }
7853 
7854 /*
7855  * <Home> command.
7856  */
7857     static void
7858 nv_home(cap)
7859     cmdarg_T	*cap;
7860 {
7861     /* CTRL-HOME is like "gg" */
7862     if (mod_mask & MOD_MASK_CTRL)
7863 	nv_goto(cap);
7864     else
7865     {
7866 	cap->count0 = 1;
7867 	nv_pipe(cap);
7868     }
7869     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
7870 			       one-character line). */
7871 }
7872 
7873 /*
7874  * "|" command.
7875  */
7876     static void
7877 nv_pipe(cap)
7878     cmdarg_T *cap;
7879 {
7880     cap->oap->motion_type = MCHAR;
7881     cap->oap->inclusive = FALSE;
7882     beginline(0);
7883     if (cap->count0 > 0)
7884     {
7885 	coladvance((colnr_T)(cap->count0 - 1));
7886 	curwin->w_curswant = (colnr_T)(cap->count0 - 1);
7887     }
7888     else
7889 	curwin->w_curswant = 0;
7890     /* keep curswant at the column where we wanted to go, not where
7891        we ended; differs if line is too short */
7892     curwin->w_set_curswant = FALSE;
7893 }
7894 
7895 /*
7896  * Handle back-word command "b" and "B".
7897  * cap->arg is 1 for "B"
7898  */
7899     static void
7900 nv_bck_word(cap)
7901     cmdarg_T	*cap;
7902 {
7903     cap->oap->motion_type = MCHAR;
7904     cap->oap->inclusive = FALSE;
7905     curwin->w_set_curswant = TRUE;
7906     if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
7907 	clearopbeep(cap->oap);
7908 #ifdef FEAT_FOLDING
7909     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
7910 	foldOpenCursor();
7911 #endif
7912 }
7913 
7914 /*
7915  * Handle word motion commands "e", "E", "w" and "W".
7916  * cap->arg is TRUE for "E" and "W".
7917  */
7918     static void
7919 nv_wordcmd(cap)
7920     cmdarg_T	*cap;
7921 {
7922     int		n;
7923     int		word_end;
7924     int		flag = FALSE;
7925 
7926     /*
7927      * Set inclusive for the "E" and "e" command.
7928      */
7929     if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
7930 	word_end = TRUE;
7931     else
7932 	word_end = FALSE;
7933     cap->oap->inclusive = word_end;
7934 
7935     /*
7936      * "cw" and "cW" are a special case.
7937      */
7938     if (!word_end && cap->oap->op_type == OP_CHANGE)
7939     {
7940 	n = gchar_cursor();
7941 	if (n != NUL)			/* not an empty line */
7942 	{
7943 	    if (vim_iswhite(n))
7944 	    {
7945 		/*
7946 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
7947 		 * changes one character, not all blanks until the start of
7948 		 * the next word.  Only do this when the 'w' flag is included
7949 		 * in 'cpoptions'.
7950 		 */
7951 		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
7952 		{
7953 		    cap->oap->inclusive = TRUE;
7954 		    cap->oap->motion_type = MCHAR;
7955 		    return;
7956 		}
7957 	    }
7958 	    else
7959 	    {
7960 		/*
7961 		 * This is a little strange. To match what the real Vi does,
7962 		 * we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
7963 		 * that we are not on a space or a TAB.  This seems impolite
7964 		 * at first, but it's really more what we mean when we say
7965 		 * 'cw'.
7966 		 * Another strangeness: When standing on the end of a word
7967 		 * "ce" will change until the end of the next wordt, but "cw"
7968 		 * will change only one character! This is done by setting
7969 		 * flag.
7970 		 */
7971 		cap->oap->inclusive = TRUE;
7972 		word_end = TRUE;
7973 		flag = TRUE;
7974 	    }
7975 	}
7976     }
7977 
7978     cap->oap->motion_type = MCHAR;
7979     curwin->w_set_curswant = TRUE;
7980     if (word_end)
7981 	n = end_word(cap->count1, cap->arg, flag, FALSE);
7982     else
7983 	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
7984 
7985     /* Don't leave the cursor on the NUL past a line */
7986     if (curwin->w_cursor.col && gchar_cursor() == NUL)
7987     {
7988 	--curwin->w_cursor.col;
7989 	cap->oap->inclusive = TRUE;
7990     }
7991 
7992     if (n == FAIL && cap->oap->op_type == OP_NOP)
7993 	clearopbeep(cap->oap);
7994     else
7995     {
7996 #ifdef FEAT_VISUAL
7997 	adjust_for_sel(cap);
7998 #endif
7999 #ifdef FEAT_FOLDING
8000 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8001 	    foldOpenCursor();
8002 #endif
8003     }
8004 }
8005 
8006 /*
8007  * "0" and "^" commands.
8008  * cap->arg is the argument for beginline().
8009  */
8010     static void
8011 nv_beginline(cap)
8012     cmdarg_T	*cap;
8013 {
8014     cap->oap->motion_type = MCHAR;
8015     cap->oap->inclusive = FALSE;
8016     beginline(cap->arg);
8017 #ifdef FEAT_FOLDING
8018     if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8019 	foldOpenCursor();
8020 #endif
8021 }
8022 
8023 #ifdef FEAT_VISUAL
8024 /*
8025  * In exclusive Visual mode, may include the last character.
8026  */
8027     static void
8028 adjust_for_sel(cap)
8029     cmdarg_T	*cap;
8030 {
8031     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
8032 	    && gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor))
8033     {
8034 # ifdef FEAT_MBYTE
8035 	if (has_mbyte)
8036 	    inc_cursor();
8037 	else
8038 # endif
8039 	    ++curwin->w_cursor.col;
8040 	cap->oap->inclusive = FALSE;
8041     }
8042 }
8043 
8044 /*
8045  * Exclude last character at end of Visual area for 'selection' == "exclusive".
8046  * Should check VIsual_mode before calling this.
8047  * Returns TRUE when backed up to the previous line.
8048  */
8049     static int
8050 unadjust_for_sel()
8051 {
8052     pos_T	*pp;
8053 
8054     if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor))
8055     {
8056 	if (lt(VIsual, curwin->w_cursor))
8057 	    pp = &curwin->w_cursor;
8058 	else
8059 	    pp = &VIsual;
8060 #ifdef FEAT_VIRTUALEDIT
8061 	if (pp->coladd > 0)
8062 	    --pp->coladd;
8063 	else
8064 #endif
8065 	if (pp->col > 0)
8066 	{
8067 	    --pp->col;
8068 #ifdef FEAT_MBYTE
8069 	    mb_adjustpos(pp);
8070 #endif
8071 	}
8072 	else if (pp->lnum > 1)
8073 	{
8074 	    --pp->lnum;
8075 	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
8076 	    return TRUE;
8077 	}
8078     }
8079     return FALSE;
8080 }
8081 
8082 /*
8083  * SELECT key in Normal or Visual mode: end of Select mode mapping.
8084  */
8085     static void
8086 nv_select(cap)
8087     cmdarg_T	*cap;
8088 {
8089     if (VIsual_active)
8090 	VIsual_select = TRUE;
8091     else if (VIsual_reselect)
8092     {
8093 	cap->nchar = 'v';	    /* fake "gv" command */
8094 	cap->arg = TRUE;
8095 	nv_g_cmd(cap);
8096     }
8097 }
8098 
8099 #endif
8100 
8101 /*
8102  * "G", "gg", CTRL-END, CTRL-HOME.
8103  * cap->arg is TRUE for "G".
8104  */
8105     static void
8106 nv_goto(cap)
8107     cmdarg_T	*cap;
8108 {
8109     linenr_T	lnum;
8110 
8111     if (cap->arg)
8112 	lnum = curbuf->b_ml.ml_line_count;
8113     else
8114 	lnum = 1L;
8115     cap->oap->motion_type = MLINE;
8116     setpcmark();
8117 
8118     /* When a count is given, use it instead of the default lnum */
8119     if (cap->count0 != 0)
8120 	lnum = cap->count0;
8121     if (lnum < 1L)
8122 	lnum = 1L;
8123     else if (lnum > curbuf->b_ml.ml_line_count)
8124 	lnum = curbuf->b_ml.ml_line_count;
8125     curwin->w_cursor.lnum = lnum;
8126     beginline(BL_SOL | BL_FIX);
8127 #ifdef FEAT_FOLDING
8128     if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP)
8129 	foldOpenCursor();
8130 #endif
8131 }
8132 
8133 /*
8134  * CTRL-\ in Normal mode.
8135  */
8136     static void
8137 nv_normal(cap)
8138     cmdarg_T	*cap;
8139 {
8140     if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G)
8141     {
8142 	clearop(cap->oap);
8143 	if (restart_edit != 0 && p_smd)
8144 	    clear_cmdline = TRUE;		/* unshow mode later */
8145 	restart_edit = 0;
8146 #ifdef FEAT_CMDWIN
8147 	if (cmdwin_type != 0)
8148 	    cmdwin_result = Ctrl_C;
8149 #endif
8150 #ifdef FEAT_VISUAL
8151 	if (VIsual_active)
8152 	{
8153 	    end_visual_mode();		/* stop Visual */
8154 	    redraw_curbuf_later(INVERTED);
8155 	}
8156 #endif
8157 	/* CTRL-\ CTRL-G restarts Insert mode when 'insertmode' is set. */
8158 	if (cap->nchar == Ctrl_G && p_im)
8159 	    restart_edit = 'a';
8160     }
8161     else
8162 	clearopbeep(cap->oap);
8163 }
8164 
8165 /*
8166  * ESC in Normal mode: beep, but don't flush buffers.
8167  * Don't even beep if we are canceling a command.
8168  */
8169     static void
8170 nv_esc(cap)
8171     cmdarg_T	*cap;
8172 {
8173     int		no_reason;
8174 
8175     no_reason = (cap->oap->op_type == OP_NOP
8176 		&& cap->opcount == 0
8177 		&& cap->count0 == 0
8178 		&& cap->oap->regname == 0
8179 		&& !p_im);
8180 
8181     if (cap->arg)		/* TRUE for CTRL-C */
8182     {
8183 	if (restart_edit == 0
8184 #ifdef FEAT_CMDWIN
8185 		&& cmdwin_type == 0
8186 #endif
8187 #ifdef FEAT_VISUAL
8188 		&& !VIsual_active
8189 #endif
8190 		&& no_reason)
8191 	    MSG(_("Type  :quit<Enter>  to exit Vim"));
8192 
8193 	/* Don't reset "restart_edit" when 'insertmode' is set, it won't be
8194 	 * set again below when halfway a mapping. */
8195 	if (!p_im)
8196 	    restart_edit = 0;
8197 #ifdef FEAT_CMDWIN
8198 	if (cmdwin_type != 0)
8199 	{
8200 	    cmdwin_result = K_IGNORE;
8201 	    got_int = FALSE;	/* don't stop executing autocommands et al. */
8202 	    return;
8203 	}
8204 #endif
8205     }
8206 
8207 #ifdef FEAT_VISUAL
8208     if (VIsual_active)
8209     {
8210 	end_visual_mode();	/* stop Visual */
8211 	check_cursor_col();	/* make sure cursor is not beyond EOL */
8212 	curwin->w_set_curswant = TRUE;
8213 	redraw_curbuf_later(INVERTED);
8214     }
8215     else
8216 #endif
8217 	if (no_reason)
8218 	    vim_beep();
8219     clearop(cap->oap);
8220 
8221     /* A CTRL-C is often used at the start of a menu.  When 'insertmode' is
8222      * set return to Insert mode afterwards. */
8223     if (restart_edit == 0 && goto_im()
8224 #ifdef FEAT_EX_EXTRA
8225 	    && ex_normal_busy == 0
8226 #endif
8227 	    )
8228 	restart_edit = 'a';
8229 }
8230 
8231 /*
8232  * Handle "A", "a", "I", "i" and <Insert> commands.
8233  */
8234     static void
8235 nv_edit(cap)
8236     cmdarg_T *cap;
8237 {
8238     /* <Insert> is equal to "i" */
8239     if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
8240 	cap->cmdchar = 'i';
8241 
8242 #ifdef FEAT_VISUAL
8243     /* in Visual mode "A" and "I" are an operator */
8244     if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
8245 	v_visop(cap);
8246 
8247     /* in Visual mode and after an operator "a" and "i" are for text objects */
8248     else
8249 #endif
8250 	if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
8251 	    && (cap->oap->op_type != OP_NOP
8252 #ifdef FEAT_VISUAL
8253 		|| VIsual_active
8254 #endif
8255 		))
8256     {
8257 #ifdef FEAT_TEXTOBJ
8258 	nv_object(cap);
8259 #else
8260 	clearopbeep(cap->oap);
8261 #endif
8262     }
8263     else if (!curbuf->b_p_ma && !p_im)
8264     {
8265 	/* Only give this error when 'insertmode' is off. */
8266 	EMSG(_(e_modifiable));
8267 	clearop(cap->oap);
8268     }
8269     else if (!checkclearopq(cap->oap))
8270     {
8271 	switch (cap->cmdchar)
8272 	{
8273 	    case 'A':	/* "A"ppend after the line */
8274 		curwin->w_set_curswant = TRUE;
8275 #ifdef FEAT_VIRTUALEDIT
8276 		if (ve_flags == VE_ALL)
8277 		{
8278 		    int save_State = State;
8279 
8280 		    /* Pretent Insert mode here to allow the cursor on the
8281 		     * character past the end of the line */
8282 		    State = INSERT;
8283 		    coladvance((colnr_T)MAXCOL);
8284 		    State = save_State;
8285 		}
8286 		else
8287 #endif
8288 		    curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
8289 		break;
8290 
8291 	    case 'I':	/* "I"nsert before the first non-blank */
8292 		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
8293 		    beginline(BL_WHITE);
8294 		else
8295 		    beginline(BL_WHITE|BL_FIX);
8296 		break;
8297 
8298 	    case 'a':	/* "a"ppend is like "i"nsert on the next character. */
8299 #ifdef FEAT_VIRTUALEDIT
8300 		/* increment coladd when in virtual space, increment the
8301 		 * column otherwise, also to append after an unprintable char */
8302 		if (virtual_active()
8303 			&& (curwin->w_cursor.coladd > 0
8304 			    || *ml_get_cursor() == NUL
8305 			    || *ml_get_cursor() == TAB))
8306 		    curwin->w_cursor.coladd++;
8307 		else
8308 #endif
8309 		if (*ml_get_cursor() != NUL)
8310 		    inc_cursor();
8311 		break;
8312 	}
8313 
8314 #ifdef FEAT_VIRTUALEDIT
8315 	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
8316 	{
8317 	    int save_State = State;
8318 
8319 	    /* Pretent Insert mode here to allow the cursor on the
8320 	     * character past the end of the line */
8321 	    State = INSERT;
8322 	    coladvance(getviscol());
8323 	    State = save_State;
8324 	}
8325 #endif
8326 
8327 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
8328     }
8329 }
8330 
8331 /*
8332  * Invoke edit() and take care of "restart_edit" and the return value.
8333  */
8334     static void
8335 invoke_edit(cap, repl, cmd, startln)
8336     cmdarg_T	*cap;
8337     int		repl;		/* "r" or "gr" command */
8338     int		cmd;
8339     int		startln;
8340 {
8341     int		restart_edit_save = 0;
8342 
8343     /* Complicated: When the user types "a<C-O>a" we don't want to do Insert
8344      * mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
8345      * it. */
8346     if (repl || !stuff_empty())
8347 	restart_edit_save = restart_edit;
8348     else
8349 	restart_edit_save = 0;
8350 
8351     /* Always reset "restart_edit", this is not a restarted edit. */
8352     restart_edit = 0;
8353 
8354     if (edit(cmd, startln, cap->count1))
8355 	cap->retval |= CA_COMMAND_BUSY;
8356 
8357     if (restart_edit == 0)
8358 	restart_edit = restart_edit_save;
8359 }
8360 
8361 #ifdef FEAT_TEXTOBJ
8362 /*
8363  * "a" or "i" while an operator is pending or in Visual mode: object motion.
8364  */
8365     static void
8366 nv_object(cap)
8367     cmdarg_T	*cap;
8368 {
8369     int		flag;
8370     int		include;
8371     char_u	*mps_save;
8372 
8373     if (cap->cmdchar == 'i')
8374 	include = FALSE;    /* "ix" = inner object: exclude white space */
8375     else
8376 	include = TRUE;	    /* "ax" = an object: include white space */
8377 
8378     /* Make sure (), [], {} and <> are in 'matchpairs' */
8379     mps_save = curbuf->b_p_mps;
8380     curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";
8381 
8382     switch (cap->nchar)
8383     {
8384 	case 'w': /* "aw" = a word */
8385 		flag = current_word(cap->oap, cap->count1, include, FALSE);
8386 		break;
8387 	case 'W': /* "aW" = a WORD */
8388 		flag = current_word(cap->oap, cap->count1, include, TRUE);
8389 		break;
8390 	case 'b': /* "ab" = a braces block */
8391 	case '(':
8392 	case ')':
8393 		flag = current_block(cap->oap, cap->count1, include, '(', ')');
8394 		break;
8395 	case 'B': /* "aB" = a Brackets block */
8396 	case '{':
8397 	case '}':
8398 		flag = current_block(cap->oap, cap->count1, include, '{', '}');
8399 		break;
8400 	case '[': /* "a[" = a [] block */
8401 	case ']':
8402 		flag = current_block(cap->oap, cap->count1, include, '[', ']');
8403 		break;
8404 	case '<': /* "a<" = a <> block */
8405 	case '>':
8406 		flag = current_block(cap->oap, cap->count1, include, '<', '>');
8407 		break;
8408 	case 't': /* "at" = a tag block (xml and html) */
8409 		flag = current_tagblock(cap->oap, cap->count1, include);
8410 		break;
8411 	case 'p': /* "ap" = a paragraph */
8412 		flag = current_par(cap->oap, cap->count1, include, 'p');
8413 		break;
8414 	case 's': /* "as" = a sentence */
8415 		flag = current_sent(cap->oap, cap->count1, include);
8416 		break;
8417 	case '"': /* "a"" = a double quoted string */
8418 	case '\'': /* "a'" = a single quoted string */
8419 	case '`': /* "a`" = a backtick quoted string */
8420 		flag = current_quote(cap->oap, cap->count1, include,
8421 								  cap->nchar);
8422 		break;
8423 #if 0	/* TODO */
8424 	case 'S': /* "aS" = a section */
8425 	case 'f': /* "af" = a filename */
8426 	case 'u': /* "au" = a URL */
8427 #endif
8428 	default:
8429 		flag = FAIL;
8430 		break;
8431     }
8432 
8433     curbuf->b_p_mps = mps_save;
8434     if (flag == FAIL)
8435 	clearopbeep(cap->oap);
8436     adjust_cursor_col();
8437     curwin->w_set_curswant = TRUE;
8438 }
8439 #endif
8440 
8441 /*
8442  * "q" command: Start/stop recording.
8443  * "q:", "q/", "q?": edit command-line in command-line window.
8444  */
8445     static void
8446 nv_record(cap)
8447     cmdarg_T	*cap;
8448 {
8449     if (cap->oap->op_type == OP_FORMAT)
8450     {
8451 	/* "gqq" is the same as "gqgq": format line */
8452 	cap->cmdchar = 'g';
8453 	cap->nchar = 'q';
8454 	nv_operator(cap);
8455     }
8456     else if (!checkclearop(cap->oap))
8457     {
8458 #ifdef FEAT_CMDWIN
8459 	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
8460 	{
8461 	    stuffcharReadbuff(cap->nchar);
8462 	    stuffcharReadbuff(K_CMDWIN);
8463 	}
8464 	else
8465 #endif
8466 	    /* (stop) recording into a named register, unless executing a
8467 	     * register */
8468 	    if (!Exec_reg && do_record(cap->nchar) == FAIL)
8469 		clearopbeep(cap->oap);
8470     }
8471 }
8472 
8473 /*
8474  * Handle the "@r" command.
8475  */
8476     static void
8477 nv_at(cap)
8478     cmdarg_T	*cap;
8479 {
8480     if (checkclearop(cap->oap))
8481 	return;
8482 #ifdef FEAT_EVAL
8483     if (cap->nchar == '=')
8484     {
8485 	if (get_expr_register() == NUL)
8486 	    return;
8487     }
8488 #endif
8489     while (cap->count1-- && !got_int)
8490     {
8491 	if (do_execreg(cap->nchar, FALSE, FALSE) == FAIL)
8492 	{
8493 	    clearopbeep(cap->oap);
8494 	    break;
8495 	}
8496 	line_breakcheck();
8497     }
8498 }
8499 
8500 /*
8501  * Handle the CTRL-U and CTRL-D commands.
8502  */
8503     static void
8504 nv_halfpage(cap)
8505     cmdarg_T	*cap;
8506 {
8507     if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
8508 	    || (cap->cmdchar == Ctrl_D
8509 		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
8510 	clearopbeep(cap->oap);
8511     else if (!checkclearop(cap->oap))
8512 	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
8513 }
8514 
8515 /*
8516  * Handle "J" or "gJ" command.
8517  */
8518     static void
8519 nv_join(cap)
8520     cmdarg_T *cap;
8521 {
8522 #ifdef FEAT_VISUAL
8523     if (VIsual_active)	/* join the visual lines */
8524 	nv_operator(cap);
8525     else
8526 #endif
8527 	if (!checkclearop(cap->oap))
8528     {
8529 	if (cap->count0 <= 1)
8530 	    cap->count0 = 2;	    /* default for join is two lines! */
8531 	if (curwin->w_cursor.lnum + cap->count0 - 1 >
8532 						   curbuf->b_ml.ml_line_count)
8533 	    clearopbeep(cap->oap);  /* beyond last line */
8534 	else
8535 	{
8536 	    prep_redo(cap->oap->regname, cap->count0,
8537 			 NUL, cap->cmdchar, NUL, NUL, cap->nchar);
8538 	    do_do_join(cap->count0, cap->nchar == NUL);
8539 	}
8540     }
8541 }
8542 
8543 /*
8544  * "P", "gP", "p" and "gp" commands.
8545  */
8546     static void
8547 nv_put(cap)
8548     cmdarg_T  *cap;
8549 {
8550 #ifdef FEAT_VISUAL
8551     int		regname = 0;
8552     void	*reg1 = NULL, *reg2 = NULL;
8553     int		empty = FALSE;
8554     int		was_visual = FALSE;
8555 #endif
8556     int		dir;
8557     int		flags = 0;
8558 
8559     if (cap->oap->op_type != OP_NOP)
8560     {
8561 #ifdef FEAT_DIFF
8562 	/* "dp" is ":diffput" */
8563 	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
8564 	{
8565 	    clearop(cap->oap);
8566 	    nv_diffgetput(TRUE);
8567 	}
8568 	else
8569 #endif
8570 	clearopbeep(cap->oap);
8571     }
8572     else
8573     {
8574 	dir = (cap->cmdchar == 'P'
8575 		|| (cap->cmdchar == 'g' && cap->nchar == 'P'))
8576 							 ? BACKWARD : FORWARD;
8577 	prep_redo_cmd(cap);
8578 	if (cap->cmdchar == 'g')
8579 	    flags |= PUT_CURSEND;
8580 
8581 #ifdef FEAT_VISUAL
8582 	if (VIsual_active)
8583 	{
8584 	    /* Putting in Visual mode: The put text replaces the selected
8585 	     * text.  First delete the selected text, then put the new text.
8586 	     * Need to save and restore the registers that the delete
8587 	     * overwrites if the old contents is being put.
8588 	     */
8589 	    was_visual = TRUE;
8590 	    regname = cap->oap->regname;
8591 # ifdef FEAT_CLIPBOARD
8592 	    adjust_clip_reg(&regname);
8593 # endif
8594 	    if (regname == 0 || VIM_ISDIGIT(regname)
8595 # ifdef FEAT_CLIPBOARD
8596 		    || (clip_unnamed && (regname == '*' || regname == '+'))
8597 # endif
8598 
8599 		    )
8600 	    {
8601 		/* the delete is going to overwrite the register we want to
8602 		 * put, save it first. */
8603 		reg1 = get_register(regname, TRUE);
8604 	    }
8605 
8606 	    /* Now delete the selected text. */
8607 	    cap->cmdchar = 'd';
8608 	    cap->nchar = NUL;
8609 	    cap->oap->regname = NUL;
8610 	    nv_operator(cap);
8611 	    do_pending_operator(cap, 0, FALSE);
8612 	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
8613 
8614 	    /* delete PUT_LINE_BACKWARD; */
8615 	    cap->oap->regname = regname;
8616 
8617 	    if (reg1 != NULL)
8618 	    {
8619 		/* Delete probably changed the register we want to put, save
8620 		 * it first. Then put back what was there before the delete. */
8621 		reg2 = get_register(regname, FALSE);
8622 		put_register(regname, reg1);
8623 	    }
8624 
8625 	    /* When deleted a linewise Visual area, put the register as
8626 	     * lines to avoid it joined with the next line.  When deletion was
8627 	     * characterwise, split a line when putting lines. */
8628 	    if (VIsual_mode == 'V')
8629 		flags |= PUT_LINE;
8630 	    else if (VIsual_mode == 'v')
8631 		flags |= PUT_LINE_SPLIT;
8632 	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
8633 		flags |= PUT_LINE_FORWARD;
8634 	    dir = BACKWARD;
8635 	    if ((VIsual_mode != 'V'
8636 			&& curwin->w_cursor.col < curbuf->b_op_start.col)
8637 		    || (VIsual_mode == 'V'
8638 			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
8639 		/* cursor is at the end of the line or end of file, put
8640 		 * forward. */
8641 		dir = FORWARD;
8642 	}
8643 #endif
8644 	do_put(cap->oap->regname, dir, cap->count1, flags);
8645 
8646 #ifdef FEAT_VISUAL
8647 	/* If a register was saved, put it back now. */
8648 	if (reg2 != NULL)
8649 	    put_register(regname, reg2);
8650 
8651 	/* What to reselect with "gv"?  Selecting the just put text seems to
8652 	 * be the most useful, since the original text was removed. */
8653 	if (was_visual)
8654 	{
8655 	    curbuf->b_visual_start = curbuf->b_op_start;
8656 	    curbuf->b_visual_end = curbuf->b_op_end;
8657 	}
8658 
8659 	/* When all lines were selected and deleted do_put() leaves an empty
8660 	 * line that needs to be deleted now. */
8661 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
8662 	    ml_delete(curbuf->b_ml.ml_line_count, TRUE);
8663 #endif
8664 	auto_format(FALSE, TRUE);
8665     }
8666 }
8667 
8668 /*
8669  * "o" and "O" commands.
8670  */
8671     static void
8672 nv_open(cap)
8673     cmdarg_T	*cap;
8674 {
8675 #ifdef FEAT_DIFF
8676     /* "do" is ":diffget" */
8677     if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
8678     {
8679 	clearop(cap->oap);
8680 	nv_diffgetput(FALSE);
8681     }
8682     else
8683 #endif
8684 #ifdef FEAT_VISUAL
8685     if (VIsual_active)  /* switch start and end of visual */
8686 	v_swap_corners(cap->cmdchar);
8687     else
8688 #endif
8689 	n_opencmd(cap);
8690 }
8691 
8692 #ifdef FEAT_SNIFF
8693 /*ARGSUSED*/
8694     static void
8695 nv_sniff(cap)
8696     cmdarg_T	*cap;
8697 {
8698     ProcessSniffRequests();
8699 }
8700 #endif
8701 
8702 #ifdef FEAT_NETBEANS_INTG
8703     static void
8704 nv_nbcmd(cap)
8705     cmdarg_T	*cap;
8706 {
8707     netbeans_keycommand(cap->nchar);
8708 }
8709 #endif
8710 
8711 #ifdef FEAT_DND
8712 /*ARGSUSED*/
8713     static void
8714 nv_drop(cap)
8715     cmdarg_T	*cap;
8716 {
8717     do_put('~', BACKWARD, 1L, PUT_CURSEND);
8718 }
8719 #endif
8720 
8721 #ifdef FEAT_AUTOCMD
8722 /*
8723  * Trigger CursorHold event.
8724  * When waiting for a character for 'updatetime' K_CURSORHOLD is put in the
8725  * input buffer.  "did_cursorhold" is set to avoid retriggering.
8726  */
8727 /*ARGSUSED*/
8728     static void
8729 nv_cursorhold(cap)
8730     cmdarg_T	*cap;
8731 {
8732     apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
8733     did_cursorhold = TRUE;
8734     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
8735 }
8736 #endif
8737 
8738