xref: /vim-8.2.3635/src/normal.c (revision 4a85b415)
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 static void	op_function __ARGS((oparg_T *oap));
36 #if defined(FEAT_MOUSE) && defined(FEAT_VISUAL)
37 static void	find_start_of_word __ARGS((pos_T *));
38 static void	find_end_of_word __ARGS((pos_T *));
39 static int	get_mouse_class __ARGS((char_u *p));
40 #endif
41 static void	prep_redo_cmd __ARGS((cmdarg_T *cap));
42 static void	prep_redo __ARGS((int regname, long, int, int, int, int, int));
43 static int	checkclearop __ARGS((oparg_T *oap));
44 static int	checkclearopq __ARGS((oparg_T *oap));
45 static void	clearop __ARGS((oparg_T *oap));
46 static void	clearopbeep __ARGS((oparg_T *oap));
47 #ifdef FEAT_VISUAL
48 static void	unshift_special __ARGS((cmdarg_T *cap));
49 #endif
50 #ifdef FEAT_CMDL_INFO
51 static void	del_from_showcmd __ARGS((int));
52 #endif
53 
54 /*
55  * nv_*(): functions called to handle Normal and Visual mode commands.
56  * n_*(): functions called to handle Normal mode commands.
57  * v_*(): functions called to handle Visual mode commands.
58  */
59 static void	nv_ignore __ARGS((cmdarg_T *cap));
60 static void	nv_nop __ARGS((cmdarg_T *cap));
61 static void	nv_error __ARGS((cmdarg_T *cap));
62 static void	nv_help __ARGS((cmdarg_T *cap));
63 static void	nv_addsub __ARGS((cmdarg_T *cap));
64 static void	nv_page __ARGS((cmdarg_T *cap));
65 static void	nv_gd __ARGS((oparg_T *oap, int nchar, int thisblock));
66 static int	nv_screengo __ARGS((oparg_T *oap, int dir, long dist));
67 #ifdef FEAT_MOUSE
68 static void	nv_mousescroll __ARGS((cmdarg_T *cap));
69 static void	nv_mouse __ARGS((cmdarg_T *cap));
70 #endif
71 static void	nv_scroll_line __ARGS((cmdarg_T *cap));
72 static void	nv_zet __ARGS((cmdarg_T *cap));
73 #ifdef FEAT_GUI
74 static void	nv_ver_scrollbar __ARGS((cmdarg_T *cap));
75 static void	nv_hor_scrollbar __ARGS((cmdarg_T *cap));
76 #endif
77 #ifdef FEAT_GUI_TABLINE
78 static void	nv_tabline __ARGS((cmdarg_T *cap));
79 static void	nv_tabmenu __ARGS((cmdarg_T *cap));
80 #endif
81 static void	nv_exmode __ARGS((cmdarg_T *cap));
82 static void	nv_colon __ARGS((cmdarg_T *cap));
83 static void	nv_ctrlg __ARGS((cmdarg_T *cap));
84 static void	nv_ctrlh __ARGS((cmdarg_T *cap));
85 static void	nv_clear __ARGS((cmdarg_T *cap));
86 static void	nv_ctrlo __ARGS((cmdarg_T *cap));
87 static void	nv_hat __ARGS((cmdarg_T *cap));
88 static void	nv_Zet __ARGS((cmdarg_T *cap));
89 static void	nv_ident __ARGS((cmdarg_T *cap));
90 static void	nv_tagpop __ARGS((cmdarg_T *cap));
91 static void	nv_scroll __ARGS((cmdarg_T *cap));
92 static void	nv_right __ARGS((cmdarg_T *cap));
93 static void	nv_left __ARGS((cmdarg_T *cap));
94 static void	nv_up __ARGS((cmdarg_T *cap));
95 static void	nv_down __ARGS((cmdarg_T *cap));
96 #ifdef FEAT_SEARCHPATH
97 static void	nv_gotofile __ARGS((cmdarg_T *cap));
98 #endif
99 static void	nv_end __ARGS((cmdarg_T *cap));
100 static void	nv_dollar __ARGS((cmdarg_T *cap));
101 static void	nv_search __ARGS((cmdarg_T *cap));
102 static void	nv_next __ARGS((cmdarg_T *cap));
103 static void	normal_search __ARGS((cmdarg_T *cap, int dir, char_u *pat, int opt));
104 static void	nv_csearch __ARGS((cmdarg_T *cap));
105 static void	nv_brackets __ARGS((cmdarg_T *cap));
106 static void	nv_percent __ARGS((cmdarg_T *cap));
107 static void	nv_brace __ARGS((cmdarg_T *cap));
108 static void	nv_mark __ARGS((cmdarg_T *cap));
109 static void	nv_findpar __ARGS((cmdarg_T *cap));
110 static void	nv_undo __ARGS((cmdarg_T *cap));
111 static void	nv_kundo __ARGS((cmdarg_T *cap));
112 static void	nv_Replace __ARGS((cmdarg_T *cap));
113 #ifdef FEAT_VREPLACE
114 static void	nv_vreplace __ARGS((cmdarg_T *cap));
115 #endif
116 #ifdef FEAT_VISUAL
117 static void	v_swap_corners __ARGS((int cmdchar));
118 #endif
119 static void	nv_replace __ARGS((cmdarg_T *cap));
120 static void	n_swapchar __ARGS((cmdarg_T *cap));
121 static void	nv_cursormark __ARGS((cmdarg_T *cap, int flag, pos_T *pos));
122 #ifdef FEAT_VISUAL
123 static void	v_visop __ARGS((cmdarg_T *cap));
124 #endif
125 static void	nv_subst __ARGS((cmdarg_T *cap));
126 static void	nv_abbrev __ARGS((cmdarg_T *cap));
127 static void	nv_optrans __ARGS((cmdarg_T *cap));
128 static void	nv_gomark __ARGS((cmdarg_T *cap));
129 static void	nv_pcmark __ARGS((cmdarg_T *cap));
130 static void	nv_regname __ARGS((cmdarg_T *cap));
131 #ifdef FEAT_VISUAL
132 static void	nv_visual __ARGS((cmdarg_T *cap));
133 static void	n_start_visual_mode __ARGS((int c));
134 #endif
135 static void	nv_window __ARGS((cmdarg_T *cap));
136 static void	nv_suspend __ARGS((cmdarg_T *cap));
137 static void	nv_g_cmd __ARGS((cmdarg_T *cap));
138 static void	n_opencmd __ARGS((cmdarg_T *cap));
139 static void	nv_dot __ARGS((cmdarg_T *cap));
140 static void	nv_redo __ARGS((cmdarg_T *cap));
141 static void	nv_Undo __ARGS((cmdarg_T *cap));
142 static void	nv_tilde __ARGS((cmdarg_T *cap));
143 static void	nv_operator __ARGS((cmdarg_T *cap));
144 static void	nv_lineop __ARGS((cmdarg_T *cap));
145 static void	nv_home __ARGS((cmdarg_T *cap));
146 static void	nv_pipe __ARGS((cmdarg_T *cap));
147 static void	nv_bck_word __ARGS((cmdarg_T *cap));
148 static void	nv_wordcmd __ARGS((cmdarg_T *cap));
149 static void	nv_beginline __ARGS((cmdarg_T *cap));
150 #ifdef FEAT_VISUAL
151 static void	adjust_for_sel __ARGS((cmdarg_T *cap));
152 static int	unadjust_for_sel __ARGS((void));
153 static void	nv_select __ARGS((cmdarg_T *cap));
154 #endif
155 static void	nv_goto __ARGS((cmdarg_T *cap));
156 static void	nv_normal __ARGS((cmdarg_T *cap));
157 static void	nv_esc __ARGS((cmdarg_T *oap));
158 static void	nv_edit __ARGS((cmdarg_T *cap));
159 static void	invoke_edit __ARGS((cmdarg_T *cap, int repl, int cmd, int startln));
160 #ifdef FEAT_TEXTOBJ
161 static void	nv_object __ARGS((cmdarg_T *cap));
162 #endif
163 static void	nv_record __ARGS((cmdarg_T *cap));
164 static void	nv_at __ARGS((cmdarg_T *cap));
165 static void	nv_halfpage __ARGS((cmdarg_T *cap));
166 static void	nv_join __ARGS((cmdarg_T *cap));
167 static void	nv_put __ARGS((cmdarg_T *cap));
168 static void	nv_open __ARGS((cmdarg_T *cap));
169 #ifdef FEAT_SNIFF
170 static void	nv_sniff __ARGS((cmdarg_T *cap));
171 #endif
172 #ifdef FEAT_NETBEANS_INTG
173 static void	nv_nbcmd __ARGS((cmdarg_T *cap));
174 #endif
175 #ifdef FEAT_DND
176 static void	nv_drop __ARGS((cmdarg_T *cap));
177 #endif
178 #ifdef FEAT_AUTOCMD
179 static void	nv_cursorhold __ARGS((cmdarg_T *cap));
180 #endif
181 
182 /*
183  * Function to be called for a Normal or Visual mode command.
184  * The argument is a cmdarg_T.
185  */
186 typedef void (*nv_func_T) __ARGS((cmdarg_T *cap));
187 
188 /* Values for cmd_flags. */
189 #define NV_NCH	    0x01	  /* may need to get a second char */
190 #define NV_NCH_NOP  (0x02|NV_NCH) /* get second char when no operator pending */
191 #define NV_NCH_ALW  (0x04|NV_NCH) /* always get a second char */
192 #define NV_LANG	    0x08	/* second char needs language adjustment */
193 
194 #define NV_SS	    0x10	/* may start selection */
195 #define NV_SSS	    0x20	/* may start selection with shift modifier */
196 #define NV_STS	    0x40	/* may stop selection without shift modif. */
197 #define NV_RL	    0x80	/* 'rightleft' modifies command */
198 #define NV_KEEPREG  0x100	/* don't clear regname */
199 #define NV_NCW	    0x200	/* not allowed in command-line window */
200 
201 /*
202  * Generally speaking, every Normal mode command should either clear any
203  * pending operator (with *clearop*()), or set the motion type variable
204  * oap->motion_type.
205  *
206  * When a cursor motion command is made, it is marked as being a character or
207  * line oriented motion.  Then, if an operator is in effect, the operation
208  * becomes character or line oriented accordingly.
209  */
210 
211 /*
212  * This table contains one entry for every Normal or Visual mode command.
213  * The order doesn't matter, init_normal_cmds() will create a sorted index.
214  * It is faster when all keys from zero to '~' are present.
215  */
216 static const struct nv_cmd
217 {
218     int		cmd_char;	/* (first) command character */
219     nv_func_T   cmd_func;	/* function for this command */
220     short_u	cmd_flags;	/* NV_ flags */
221     short	cmd_arg;	/* value for ca.arg */
222 } nv_cmds[] =
223 {
224     {NUL,	nv_error,	0,			0},
225     {Ctrl_A,	nv_addsub,	0,			0},
226     {Ctrl_B,	nv_page,	NV_STS,			BACKWARD},
227     {Ctrl_C,	nv_esc,		0,			TRUE},
228     {Ctrl_D,	nv_halfpage,	0,			0},
229     {Ctrl_E,	nv_scroll_line,	0,			TRUE},
230     {Ctrl_F,	nv_page,	NV_STS,			FORWARD},
231     {Ctrl_G,	nv_ctrlg,	0,			0},
232     {Ctrl_H,	nv_ctrlh,	0,			0},
233     {Ctrl_I,	nv_pcmark,	0,			0},
234     {NL,	nv_down,	0,			FALSE},
235     {Ctrl_K,	nv_error,	0,			0},
236     {Ctrl_L,	nv_clear,	0,			0},
237     {Ctrl_M,	nv_down,	0,			TRUE},
238     {Ctrl_N,	nv_down,	NV_STS,			FALSE},
239     {Ctrl_O,	nv_ctrlo,	0,			0},
240     {Ctrl_P,	nv_up,		NV_STS,			FALSE},
241 #ifdef FEAT_VISUAL
242     {Ctrl_Q,	nv_visual,	0,			FALSE},
243 #else
244     {Ctrl_Q,	nv_ignore,	0,			0},
245 #endif
246     {Ctrl_R,	nv_redo,	0,			0},
247     {Ctrl_S,	nv_ignore,	0,			0},
248     {Ctrl_T,	nv_tagpop,	NV_NCW,			0},
249     {Ctrl_U,	nv_halfpage,	0,			0},
250 #ifdef FEAT_VISUAL
251     {Ctrl_V,	nv_visual,	0,			FALSE},
252     {'V',	nv_visual,	0,			FALSE},
253     {'v',	nv_visual,	0,			FALSE},
254 #else
255     {Ctrl_V,	nv_error,	0,			0},
256     {'V',	nv_error,	0,			0},
257     {'v',	nv_error,	0,			0},
258 #endif
259     {Ctrl_W,	nv_window,	0,			0},
260     {Ctrl_X,	nv_addsub,	0,			0},
261     {Ctrl_Y,	nv_scroll_line,	0,			FALSE},
262     {Ctrl_Z,	nv_suspend,	0,			0},
263     {ESC,	nv_esc,		0,			FALSE},
264     {Ctrl_BSL,	nv_normal,	NV_NCH_ALW,		0},
265     {Ctrl_RSB,	nv_ident,	NV_NCW,			0},
266     {Ctrl_HAT,	nv_hat,		NV_NCW,			0},
267     {Ctrl__,	nv_error,	0,			0},
268     {' ',	nv_right,	0,			0},
269     {'!',	nv_operator,	0,			0},
270     {'"',	nv_regname,	NV_NCH_NOP|NV_KEEPREG,	0},
271     {'#',	nv_ident,	0,			0},
272     {'$',	nv_dollar,	0,			0},
273     {'%',	nv_percent,	0,			0},
274     {'&',	nv_optrans,	0,			0},
275     {'\'',	nv_gomark,	NV_NCH_ALW,		TRUE},
276     {'(',	nv_brace,	0,			BACKWARD},
277     {')',	nv_brace,	0,			FORWARD},
278     {'*',	nv_ident,	0,			0},
279     {'+',	nv_down,	0,			TRUE},
280     {',',	nv_csearch,	0,			TRUE},
281     {'-',	nv_up,		0,			TRUE},
282     {'.',	nv_dot,		NV_KEEPREG,		0},
283     {'/',	nv_search,	0,			FALSE},
284     {'0',	nv_beginline,	0,			0},
285     {'1',	nv_ignore,	0,			0},
286     {'2',	nv_ignore,	0,			0},
287     {'3',	nv_ignore,	0,			0},
288     {'4',	nv_ignore,	0,			0},
289     {'5',	nv_ignore,	0,			0},
290     {'6',	nv_ignore,	0,			0},
291     {'7',	nv_ignore,	0,			0},
292     {'8',	nv_ignore,	0,			0},
293     {'9',	nv_ignore,	0,			0},
294     {':',	nv_colon,	0,			0},
295     {';',	nv_csearch,	0,			FALSE},
296     {'<',	nv_operator,	NV_RL,			0},
297     {'=',	nv_operator,	0,			0},
298     {'>',	nv_operator,	NV_RL,			0},
299     {'?',	nv_search,	0,			FALSE},
300     {'@',	nv_at,		NV_NCH_NOP,		FALSE},
301     {'A',	nv_edit,	0,			0},
302     {'B',	nv_bck_word,	0,			1},
303     {'C',	nv_abbrev,	NV_KEEPREG,		0},
304     {'D',	nv_abbrev,	NV_KEEPREG,		0},
305     {'E',	nv_wordcmd,	0,			TRUE},
306     {'F',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
307     {'G',	nv_goto,	0,			TRUE},
308     {'H',	nv_scroll,	0,			0},
309     {'I',	nv_edit,	0,			0},
310     {'J',	nv_join,	0,			0},
311     {'K',	nv_ident,	0,			0},
312     {'L',	nv_scroll,	0,			0},
313     {'M',	nv_scroll,	0,			0},
314     {'N',	nv_next,	0,			SEARCH_REV},
315     {'O',	nv_open,	0,			0},
316     {'P',	nv_put,		0,			0},
317     {'Q',	nv_exmode,	NV_NCW,			0},
318     {'R',	nv_Replace,	0,			FALSE},
319     {'S',	nv_subst,	NV_KEEPREG,		0},
320     {'T',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
321     {'U',	nv_Undo,	0,			0},
322     {'W',	nv_wordcmd,	0,			TRUE},
323     {'X',	nv_abbrev,	NV_KEEPREG,		0},
324     {'Y',	nv_abbrev,	NV_KEEPREG,		0},
325     {'Z',	nv_Zet,		NV_NCH_NOP|NV_NCW,	0},
326     {'[',	nv_brackets,	NV_NCH_ALW,		BACKWARD},
327     {'\\',	nv_error,	0,			0},
328     {']',	nv_brackets,	NV_NCH_ALW,		FORWARD},
329     {'^',	nv_beginline,	0,			BL_WHITE | BL_FIX},
330     {'_',	nv_lineop,	0,			0},
331     {'`',	nv_gomark,	NV_NCH_ALW,		FALSE},
332     {'a',	nv_edit,	NV_NCH,			0},
333     {'b',	nv_bck_word,	0,			0},
334     {'c',	nv_operator,	0,			0},
335     {'d',	nv_operator,	0,			0},
336     {'e',	nv_wordcmd,	0,			FALSE},
337     {'f',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
338     {'g',	nv_g_cmd,	NV_NCH_ALW,		FALSE},
339     {'h',	nv_left,	NV_RL,			0},
340     {'i',	nv_edit,	NV_NCH,			0},
341     {'j',	nv_down,	0,			FALSE},
342     {'k',	nv_up,		0,			FALSE},
343     {'l',	nv_right,	NV_RL,			0},
344     {'m',	nv_mark,	NV_NCH_NOP,		0},
345     {'n',	nv_next,	0,			0},
346     {'o',	nv_open,	0,			0},
347     {'p',	nv_put,		0,			0},
348     {'q',	nv_record,	NV_NCH,			0},
349     {'r',	nv_replace,	NV_NCH_NOP|NV_LANG,	0},
350     {'s',	nv_subst,	NV_KEEPREG,		0},
351     {'t',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
352     {'u',	nv_undo,	0,			0},
353     {'w',	nv_wordcmd,	0,			FALSE},
354     {'x',	nv_abbrev,	NV_KEEPREG,		0},
355     {'y',	nv_operator,	0,			0},
356     {'z',	nv_zet,		NV_NCH_ALW,		0},
357     {'{',	nv_findpar,	0,			BACKWARD},
358     {'|',	nv_pipe,	0,			0},
359     {'}',	nv_findpar,	0,			FORWARD},
360     {'~',	nv_tilde,	0,			0},
361 
362     /* pound sign */
363     {POUND,	nv_ident,	0,			0},
364 #ifdef FEAT_MOUSE
365     {K_MOUSEUP, nv_mousescroll,	0,			TRUE},
366     {K_MOUSEDOWN, nv_mousescroll, 0,			FALSE},
367     {K_LEFTMOUSE, nv_mouse,	0,			0},
368     {K_LEFTMOUSE_NM, nv_mouse,	0,			0},
369     {K_LEFTDRAG, nv_mouse,	0,			0},
370     {K_LEFTRELEASE, nv_mouse,	0,			0},
371     {K_LEFTRELEASE_NM, nv_mouse, 0,			0},
372     {K_MIDDLEMOUSE, nv_mouse,	0,			0},
373     {K_MIDDLEDRAG, nv_mouse,	0,			0},
374     {K_MIDDLERELEASE, nv_mouse,	0,			0},
375     {K_RIGHTMOUSE, nv_mouse,	0,			0},
376     {K_RIGHTDRAG, nv_mouse,	0,			0},
377     {K_RIGHTRELEASE, nv_mouse,	0,			0},
378     {K_X1MOUSE, nv_mouse,	0,			0},
379     {K_X1DRAG, nv_mouse,	0,			0},
380     {K_X1RELEASE, nv_mouse,	0,			0},
381     {K_X2MOUSE, nv_mouse,	0,			0},
382     {K_X2DRAG, nv_mouse,	0,			0},
383     {K_X2RELEASE, nv_mouse,	0,			0},
384 #endif
385     {K_IGNORE,	nv_ignore,	NV_KEEPREG,		0},
386     {K_NOP,	nv_nop,		0,			0},
387     {K_INS,	nv_edit,	0,			0},
388     {K_KINS,	nv_edit,	0,			0},
389     {K_BS,	nv_ctrlh,	0,			0},
390     {K_UP,	nv_up,		NV_SSS|NV_STS,		FALSE},
391     {K_S_UP,	nv_page,	NV_SS,			BACKWARD},
392     {K_DOWN,	nv_down,	NV_SSS|NV_STS,		FALSE},
393     {K_S_DOWN,	nv_page,	NV_SS,			FORWARD},
394     {K_LEFT,	nv_left,	NV_SSS|NV_STS|NV_RL,	0},
395     {K_S_LEFT,	nv_bck_word,	NV_SS|NV_RL,		0},
396     {K_C_LEFT,	nv_bck_word,	NV_SSS|NV_RL|NV_STS,	1},
397     {K_RIGHT,	nv_right,	NV_SSS|NV_STS|NV_RL,	0},
398     {K_S_RIGHT,	nv_wordcmd,	NV_SS|NV_RL,		FALSE},
399     {K_C_RIGHT,	nv_wordcmd,	NV_SSS|NV_RL|NV_STS,	TRUE},
400     {K_PAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
401     {K_KPAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
402     {K_PAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
403     {K_KPAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
404     {K_END,	nv_end,		NV_SSS|NV_STS,		FALSE},
405     {K_KEND,	nv_end,		NV_SSS|NV_STS,		FALSE},
406     {K_S_END,	nv_end,		NV_SS,			FALSE},
407     {K_C_END,	nv_end,		NV_SSS|NV_STS,		TRUE},
408     {K_HOME,	nv_home,	NV_SSS|NV_STS,		0},
409     {K_KHOME,	nv_home,	NV_SSS|NV_STS,		0},
410     {K_S_HOME,	nv_home,	NV_SS,			0},
411     {K_C_HOME,	nv_goto,	NV_SSS|NV_STS,		FALSE},
412     {K_DEL,	nv_abbrev,	0,			0},
413     {K_KDEL,	nv_abbrev,	0,			0},
414     {K_UNDO,	nv_kundo,	0,			0},
415     {K_HELP,	nv_help,	NV_NCW,			0},
416     {K_F1,	nv_help,	NV_NCW,			0},
417     {K_XF1,	nv_help,	NV_NCW,			0},
418 #ifdef FEAT_VISUAL
419     {K_SELECT,	nv_select,	0,			0},
420 #endif
421 #ifdef FEAT_GUI
422     {K_VER_SCROLLBAR, nv_ver_scrollbar, 0,		0},
423     {K_HOR_SCROLLBAR, nv_hor_scrollbar, 0,		0},
424 #endif
425 #ifdef FEAT_GUI_TABLINE
426     {K_TABLINE, nv_tabline,	0,			0},
427     {K_TABMENU, nv_tabmenu,	0,			0},
428 #endif
429 #ifdef FEAT_FKMAP
430     {K_F8,	farsi_fkey,	0,			0},
431     {K_F9,	farsi_fkey,	0,			0},
432 #endif
433 #ifdef FEAT_SNIFF
434     {K_SNIFF,	nv_sniff,	0,			0},
435 #endif
436 #ifdef FEAT_NETBEANS_INTG
437     {K_F21,	nv_nbcmd,	NV_NCH_ALW,		0},
438 #endif
439 #ifdef FEAT_DND
440     {K_DROP,	nv_drop,	NV_STS,			0},
441 #endif
442 #ifdef FEAT_AUTOCMD
443     {K_CURSORHOLD, nv_cursorhold, NV_KEEPREG,		0},
444 #endif
445 };
446 
447 /* Number of commands in nv_cmds[]. */
448 #define NV_CMDS_SIZE (sizeof(nv_cmds) / sizeof(struct nv_cmd))
449 
450 /* Sorted index of commands in nv_cmds[]. */
451 static short nv_cmd_idx[NV_CMDS_SIZE];
452 
453 /* The highest index for which
454  * nv_cmds[idx].cmd_char == nv_cmd_idx[nv_cmds[idx].cmd_char] */
455 static int nv_max_linear;
456 
457 /*
458  * Compare functions for qsort() below, that checks the command character
459  * through the index in nv_cmd_idx[].
460  */
461     static int
462 #ifdef __BORLANDC__
463 _RTLENTRYF
464 #endif
465 nv_compare(s1, s2)
466     const void	*s1;
467     const void	*s2;
468 {
469     int		c1, c2;
470 
471     /* The commands are sorted on absolute value. */
472     c1 = nv_cmds[*(const short *)s1].cmd_char;
473     c2 = nv_cmds[*(const short *)s2].cmd_char;
474     if (c1 < 0)
475 	c1 = -c1;
476     if (c2 < 0)
477 	c2 = -c2;
478     return c1 - c2;
479 }
480 
481 /*
482  * Initialize the nv_cmd_idx[] table.
483  */
484     void
485 init_normal_cmds()
486 {
487     int		i;
488 
489     /* Fill the index table with a one to one relation. */
490     for (i = 0; i < NV_CMDS_SIZE; ++i)
491 	nv_cmd_idx[i] = i;
492 
493     /* Sort the commands by the command character.  */
494     qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);
495 
496     /* Find the first entry that can't be indexed by the command character. */
497     for (i = 0; i < NV_CMDS_SIZE; ++i)
498 	if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
499 	    break;
500     nv_max_linear = i - 1;
501 }
502 
503 /*
504  * Search for a command in the commands table.
505  * Returns -1 for invalid command.
506  */
507     static int
508 find_command(cmdchar)
509     int		cmdchar;
510 {
511     int		i;
512     int		idx;
513     int		top, bot;
514     int		c;
515 
516 #ifdef FEAT_MBYTE
517     /* A multi-byte character is never a command. */
518     if (cmdchar >= 0x100)
519 	return -1;
520 #endif
521 
522     /* We use the absolute value of the character.  Special keys have a
523      * negative value, but are sorted on their absolute value. */
524     if (cmdchar < 0)
525 	cmdchar = -cmdchar;
526 
527     /* If the character is in the first part: The character is the index into
528      * nv_cmd_idx[]. */
529     if (cmdchar <= nv_max_linear)
530 	return nv_cmd_idx[cmdchar];
531 
532     /* Perform a binary search. */
533     bot = nv_max_linear + 1;
534     top = NV_CMDS_SIZE - 1;
535     idx = -1;
536     while (bot <= top)
537     {
538 	i = (top + bot) / 2;
539 	c = nv_cmds[nv_cmd_idx[i]].cmd_char;
540 	if (c < 0)
541 	    c = -c;
542 	if (cmdchar == c)
543 	{
544 	    idx = nv_cmd_idx[i];
545 	    break;
546 	}
547 	if (cmdchar > c)
548 	    bot = i + 1;
549 	else
550 	    top = i - 1;
551     }
552     return idx;
553 }
554 
555 /*
556  * Execute a command in Normal mode.
557  */
558 /*ARGSUSED*/
559     void
560 normal_cmd(oap, toplevel)
561     oparg_T	*oap;
562     int		toplevel;		/* TRUE when called from main() */
563 {
564     static long	opcount = 0;		/* ca.opcount saved here */
565     cmdarg_T	ca;			/* command arguments */
566     int		c;
567     int		ctrl_w = FALSE;		/* got CTRL-W command */
568     int		old_col = curwin->w_curswant;
569 #ifdef FEAT_CMDL_INFO
570     int		need_flushbuf;		/* need to call out_flush() */
571 #endif
572 #ifdef FEAT_VISUAL
573     pos_T	old_pos;		/* cursor position before command */
574     int		mapped_len;
575     static int	old_mapped_len = 0;
576 #endif
577     int		idx;
578 
579     vim_memset(&ca, 0, sizeof(ca));	/* also resets ca.retval */
580     ca.oap = oap;
581     ca.opcount = opcount;
582 
583 #ifdef FEAT_SNIFF
584     want_sniff_request = sniff_connected;
585 #endif
586 
587     /*
588      * If there is an operator pending, then the command we take this time
589      * will terminate it. Finish_op tells us to finish the operation before
590      * returning this time (unless the operation was cancelled).
591      */
592 #ifdef CURSOR_SHAPE
593     c = finish_op;
594 #endif
595     finish_op = (oap->op_type != OP_NOP);
596 #ifdef CURSOR_SHAPE
597     if (finish_op != c)
598     {
599 	ui_cursor_shape();		/* may show different cursor shape */
600 # ifdef FEAT_MOUSESHAPE
601 	update_mouseshape(-1);
602 # endif
603     }
604 #endif
605 
606     if (!finish_op && !oap->regname)
607 	ca.opcount = 0;
608 
609 #ifdef FEAT_VISUAL
610     mapped_len = typebuf_maplen();
611 #endif
612 
613     State = NORMAL_BUSY;
614 #ifdef USE_ON_FLY_SCROLL
615     dont_scroll = FALSE;	/* allow scrolling here */
616 #endif
617 
618     /*
619      * Get the command character from the user.
620      */
621     c = safe_vgetc();
622 
623 #ifdef FEAT_LANGMAP
624     LANGMAP_ADJUST(c, TRUE);
625 #endif
626 
627 #ifdef FEAT_VISUAL
628     /*
629      * If a mapping was started in Visual or Select mode, remember the length
630      * of the mapping.  This is used below to not return to Insert mode for as
631      * long as the mapping is being executed.
632      */
633     if (restart_edit == 0)
634 	old_mapped_len = 0;
635     else if (old_mapped_len
636 		|| (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0))
637 	old_mapped_len = typebuf_maplen();
638 #endif
639 
640     if (c == NUL)
641 	c = K_ZERO;
642 
643 #ifdef FEAT_VISUAL
644     /*
645      * In Select mode, typed text replaces the selection.
646      */
647     if (VIsual_active
648 	    && VIsual_select
649 	    && (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
650     {
651 # ifdef FEAT_MBYTE
652 	char_u	    buf[MB_MAXBYTES + 1];
653 
654 	buf[(*mb_char2bytes)(c, buf)] = NUL;
655 # else
656 	char_u	    buf[2];
657 
658 	buf[0] = c;
659 	buf[1] = NUL;
660 # endif
661 	/* Fake a "c"hange command.  When "restart_edit" is set (e.g., because
662 	 * 'insertmode' is set) fake a "d"elete command, Insert mode will
663 	 * restart automatically.
664 	 * Insert the typed character in the typeahead buffer, so that it will
665 	 * be mapped in Insert mode.  Required for ":lmap" to work.  May cause
666 	 * mapping a character from ":vnoremap"... */
667 	(void)ins_typebuf(buf, REMAP_YES, 0, !KeyTyped, FALSE);
668 	if (restart_edit != 0)
669 	    c = 'd';
670 	else
671 	    c = 'c';
672 	msg_nowait = TRUE;	/* don't delay going to insert mode */
673     }
674 #endif
675 
676 #ifdef FEAT_CMDL_INFO
677     need_flushbuf = add_to_showcmd(c);
678 #endif
679 
680 getcount:
681 #ifdef FEAT_VISUAL
682     if (!(VIsual_active && VIsual_select))
683 #endif
684     {
685 	/*
686 	 * Handle a count before a command and compute ca.count0.
687 	 * Note that '0' is a command and not the start of a count, but it's
688 	 * part of a count after other digits.
689 	 */
690 	while (    (c >= '1' && c <= '9')
691 		|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
692 	{
693 	    if (c == K_DEL || c == K_KDEL)
694 	    {
695 		ca.count0 /= 10;
696 #ifdef FEAT_CMDL_INFO
697 		del_from_showcmd(4);	/* delete the digit and ~@% */
698 #endif
699 	    }
700 	    else
701 		ca.count0 = ca.count0 * 10 + (c - '0');
702 	    if (ca.count0 < 0)	    /* got too large! */
703 		ca.count0 = 999999999L;
704 	    if (ctrl_w)
705 	    {
706 		++no_mapping;
707 		++allow_keys;		/* no mapping for nchar, but keys */
708 	    }
709 	    ++no_zero_mapping;		/* don't map zero here */
710 	    c = safe_vgetc();
711 #ifdef FEAT_LANGMAP
712 	    LANGMAP_ADJUST(c, TRUE);
713 #endif
714 	    --no_zero_mapping;
715 	    if (ctrl_w)
716 	    {
717 		--no_mapping;
718 		--allow_keys;
719 	    }
720 #ifdef FEAT_CMDL_INFO
721 	    need_flushbuf |= add_to_showcmd(c);
722 #endif
723 	}
724 
725 	/*
726 	 * If we got CTRL-W there may be a/another count
727 	 */
728 	if (c == Ctrl_W && !ctrl_w && oap->op_type == OP_NOP)
729 	{
730 	    ctrl_w = TRUE;
731 	    ca.opcount = ca.count0;	/* remember first count */
732 	    ca.count0 = 0;
733 	    ++no_mapping;
734 	    ++allow_keys;		/* no mapping for nchar, but keys */
735 	    c = safe_vgetc();		/* get next character */
736 #ifdef FEAT_LANGMAP
737 	    LANGMAP_ADJUST(c, TRUE);
738 #endif
739 	    --no_mapping;
740 	    --allow_keys;
741 #ifdef FEAT_CMDL_INFO
742 	    need_flushbuf |= add_to_showcmd(c);
743 #endif
744 	    goto getcount;		/* jump back */
745 	}
746     }
747 
748     /*
749      * If we're in the middle of an operator (including after entering a yank
750      * buffer with '"') AND we had a count before the operator, then that
751      * count overrides the current value of ca.count0.
752      * What this means effectively, is that commands like "3dw" get turned
753      * into "d3w" which makes things fall into place pretty neatly.
754      * If you give a count before AND after the operator, they are multiplied.
755      */
756     if (ca.opcount != 0)
757     {
758 	if (ca.count0)
759 	    ca.count0 *= ca.opcount;
760 	else
761 	    ca.count0 = ca.opcount;
762     }
763 
764     /*
765      * Always remember the count.  It will be set to zero (on the next call,
766      * above) when there is no pending operator.
767      * When called from main(), save the count for use by the "count" built-in
768      * variable.
769      */
770     ca.opcount = ca.count0;
771     ca.count1 = (ca.count0 == 0 ? 1 : ca.count0);
772 
773 #ifdef FEAT_EVAL
774     /*
775      * Only set v:count when called from main() and not a stuffed command.
776      */
777     if (toplevel && stuff_empty())
778 	set_vcount(ca.count0, ca.count1);
779 #endif
780 
781     /*
782      * Find the command character in the table of commands.
783      * For CTRL-W we already got nchar when looking for a count.
784      */
785     if (ctrl_w)
786     {
787 	ca.nchar = c;
788 	ca.cmdchar = Ctrl_W;
789     }
790     else
791 	ca.cmdchar = c;
792     idx = find_command(ca.cmdchar);
793     if (idx < 0)
794     {
795 	/* Not a known command: beep. */
796 	clearopbeep(oap);
797 	goto normal_end;
798     }
799 
800     if (text_locked() && (nv_cmds[idx].cmd_flags & NV_NCW))
801     {
802 	/* This command is not allowed wile editing a ccmdline: beep. */
803 	clearopbeep(oap);
804 	text_locked_msg();
805 	goto normal_end;
806     }
807 #ifdef FEAT_AUTOCMD
808     if ((nv_cmds[idx].cmd_flags & NV_NCW) && curbuf_locked())
809 	goto normal_end;
810 #endif
811 
812 #ifdef FEAT_VISUAL
813     /*
814      * In Visual/Select mode, a few keys are handled in a special way.
815      */
816     if (VIsual_active)
817     {
818 	/* when 'keymodel' contains "stopsel" may stop Select/Visual mode */
819 	if (km_stopsel
820 		&& (nv_cmds[idx].cmd_flags & NV_STS)
821 		&& !(mod_mask & MOD_MASK_SHIFT))
822 	{
823 	    end_visual_mode();
824 	    redraw_curbuf_later(INVERTED);
825 	}
826 
827 	/* Keys that work different when 'keymodel' contains "startsel" */
828 	if (km_startsel)
829 	{
830 	    if (nv_cmds[idx].cmd_flags & NV_SS)
831 	    {
832 		unshift_special(&ca);
833 		idx = find_command(ca.cmdchar);
834 		if (idx < 0)
835 		{
836 		    /* Just in case */
837 		    clearopbeep(oap);
838 		    goto normal_end;
839 		}
840 	    }
841 	    else if ((nv_cmds[idx].cmd_flags & NV_SSS)
842 					       && (mod_mask & MOD_MASK_SHIFT))
843 	    {
844 		mod_mask &= ~MOD_MASK_SHIFT;
845 	    }
846 	}
847     }
848 #endif
849 
850 #ifdef FEAT_RIGHTLEFT
851     if (curwin->w_p_rl && KeyTyped && !KeyStuffed
852 					  && (nv_cmds[idx].cmd_flags & NV_RL))
853     {
854 	/* Invert horizontal movements and operations.  Only when typed by the
855 	 * user directly, not when the result of a mapping or "x" translated
856 	 * to "dl". */
857 	switch (ca.cmdchar)
858 	{
859 	    case 'l':	    ca.cmdchar = 'h'; break;
860 	    case K_RIGHT:   ca.cmdchar = K_LEFT; break;
861 	    case K_S_RIGHT: ca.cmdchar = K_S_LEFT; break;
862 	    case K_C_RIGHT: ca.cmdchar = K_C_LEFT; break;
863 	    case 'h':	    ca.cmdchar = 'l'; break;
864 	    case K_LEFT:    ca.cmdchar = K_RIGHT; break;
865 	    case K_S_LEFT:  ca.cmdchar = K_S_RIGHT; break;
866 	    case K_C_LEFT:  ca.cmdchar = K_C_RIGHT; break;
867 	    case '>':	    ca.cmdchar = '<'; break;
868 	    case '<':	    ca.cmdchar = '>'; break;
869 	}
870 	idx = find_command(ca.cmdchar);
871     }
872 #endif
873 
874     /*
875      * Get an additional character if we need one.
876      */
877     if ((nv_cmds[idx].cmd_flags & NV_NCH)
878 	    && (((nv_cmds[idx].cmd_flags & NV_NCH_NOP) == NV_NCH_NOP
879 		    && oap->op_type == OP_NOP)
880 		|| (nv_cmds[idx].cmd_flags & NV_NCH_ALW) == NV_NCH_ALW
881 		|| (ca.cmdchar == 'q'
882 		    && oap->op_type == OP_NOP
883 		    && !Recording
884 		    && !Exec_reg)
885 		|| ((ca.cmdchar == 'a' || ca.cmdchar == 'i')
886 		    && (oap->op_type != OP_NOP
887 #ifdef FEAT_VISUAL
888 			|| VIsual_active
889 #endif
890 		       ))))
891     {
892 	int	*cp;
893 	int	repl = FALSE;	/* get character for replace mode */
894 	int	lit = FALSE;	/* get extra character literally */
895 	int	langmap_active = FALSE;    /* using :lmap mappings */
896 	int	lang;		/* getting a text character */
897 #ifdef USE_IM_CONTROL
898 	int	save_smd;	/* saved value of p_smd */
899 #endif
900 
901 	++no_mapping;
902 	++allow_keys;		/* no mapping for nchar, but allow key codes */
903 	if (ca.cmdchar == 'g')
904 	{
905 	    /*
906 	     * For 'g' get the next character now, so that we can check for
907 	     * "gr", "g'" and "g`".
908 	     */
909 	    ca.nchar = safe_vgetc();
910 #ifdef FEAT_LANGMAP
911 	    LANGMAP_ADJUST(ca.nchar, TRUE);
912 #endif
913 #ifdef FEAT_CMDL_INFO
914 	    need_flushbuf |= add_to_showcmd(ca.nchar);
915 #endif
916 	    if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
917 						      || ca.nchar == Ctrl_BSL)
918 	    {
919 		cp = &ca.extra_char;	/* need to get a third character */
920 		if (ca.nchar != 'r')
921 		    lit = TRUE;			/* get it literally */
922 		else
923 		    repl = TRUE;		/* get it in replace mode */
924 	    }
925 	    else
926 		cp = NULL;		/* no third character needed */
927 	}
928 	else
929 	{
930 	    if (ca.cmdchar == 'r')		/* get it in replace mode */
931 		repl = TRUE;
932 	    cp = &ca.nchar;
933 	}
934 	lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));
935 
936 	/*
937 	 * Get a second or third character.
938 	 */
939 	if (cp != NULL)
940 	{
941 #ifdef CURSOR_SHAPE
942 	    if (repl)
943 	    {
944 		State = REPLACE;	/* pretend Replace mode */
945 		ui_cursor_shape();	/* show different cursor shape */
946 	    }
947 #endif
948 	    if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
949 	    {
950 		/* Allow mappings defined with ":lmap". */
951 		--no_mapping;
952 		--allow_keys;
953 		if (repl)
954 		    State = LREPLACE;
955 		else
956 		    State = LANGMAP;
957 		langmap_active = TRUE;
958 	    }
959 #ifdef USE_IM_CONTROL
960 	    save_smd = p_smd;
961 	    p_smd = FALSE;	/* Don't let the IM code show the mode here */
962 	    if (lang && curbuf->b_p_iminsert == B_IMODE_IM)
963 		im_set_active(TRUE);
964 #endif
965 
966 	    *cp = safe_vgetc();
967 
968 	    if (langmap_active)
969 	    {
970 		/* Undo the decrement done above */
971 		++no_mapping;
972 		++allow_keys;
973 		State = NORMAL_BUSY;
974 	    }
975 #ifdef USE_IM_CONTROL
976 	    if (lang)
977 	    {
978 		if (curbuf->b_p_iminsert != B_IMODE_LMAP)
979 		    im_save_status(&curbuf->b_p_iminsert);
980 		im_set_active(FALSE);
981 	    }
982 	    p_smd = save_smd;
983 #endif
984 #ifdef CURSOR_SHAPE
985 	    State = NORMAL_BUSY;
986 #endif
987 #ifdef FEAT_CMDL_INFO
988 	    need_flushbuf |= add_to_showcmd(*cp);
989 #endif
990 
991 	    if (!lit)
992 	    {
993 #ifdef FEAT_DIGRAPHS
994 		/* Typing CTRL-K gets a digraph. */
995 		if (*cp == Ctrl_K
996 			&& ((nv_cmds[idx].cmd_flags & NV_LANG)
997 			    || cp == &ca.extra_char)
998 			&& vim_strchr(p_cpo, CPO_DIGRAPH) == NULL)
999 		{
1000 		    c = get_digraph(FALSE);
1001 		    if (c > 0)
1002 		    {
1003 			*cp = c;
1004 # ifdef FEAT_CMDL_INFO
1005 			/* Guessing how to update showcmd here... */
1006 			del_from_showcmd(3);
1007 			need_flushbuf |= add_to_showcmd(*cp);
1008 # endif
1009 		    }
1010 		}
1011 #endif
1012 
1013 #ifdef FEAT_LANGMAP
1014 		/* adjust chars > 127, except after "tTfFr" commands */
1015 		LANGMAP_ADJUST(*cp, !lang);
1016 #endif
1017 #ifdef FEAT_RIGHTLEFT
1018 		/* adjust Hebrew mapped char */
1019 		if (p_hkmap && lang && KeyTyped)
1020 		    *cp = hkmap(*cp);
1021 # ifdef FEAT_FKMAP
1022 		/* adjust Farsi mapped char */
1023 		if (p_fkmap && lang && KeyTyped)
1024 		    *cp = fkmap(*cp);
1025 # endif
1026 #endif
1027 	    }
1028 
1029 	    /*
1030 	     * When the next character is CTRL-\ a following CTRL-N means the
1031 	     * command is aborted and we go to Normal mode.
1032 	     */
1033 	    if (cp == &ca.extra_char
1034 		    && ca.nchar == Ctrl_BSL
1035 		    && (ca.extra_char == Ctrl_N || ca.extra_char == Ctrl_G))
1036 	    {
1037 		ca.cmdchar = Ctrl_BSL;
1038 		ca.nchar = ca.extra_char;
1039 		idx = find_command(ca.cmdchar);
1040 	    }
1041 	    else if (*cp == Ctrl_BSL)
1042 	    {
1043 		long towait = (p_ttm >= 0 ? p_ttm : p_tm);
1044 
1045 		/* There is a busy wait here when typing "f<C-\>" and then
1046 		 * something different from CTRL-N.  Can't be avoided. */
1047 		while ((c = vpeekc()) <= 0 && towait > 0L)
1048 		{
1049 		    do_sleep(towait > 50L ? 50L : towait);
1050 		    towait -= 50L;
1051 		}
1052 		if (c > 0)
1053 		{
1054 		    c = safe_vgetc();
1055 		    if (c != Ctrl_N && c != Ctrl_G)
1056 			vungetc(c);
1057 		    else
1058 		    {
1059 			ca.cmdchar = Ctrl_BSL;
1060 			ca.nchar = c;
1061 			idx = find_command(ca.cmdchar);
1062 		    }
1063 		}
1064 	    }
1065 
1066 #ifdef FEAT_MBYTE
1067 	    /* When getting a text character and the next character is a
1068 	     * multi-byte character, it could be a composing character.
1069 	     * However, don't wait for it to arrive. */
1070 	    while (enc_utf8 && lang && (c = vpeekc()) > 0
1071 				 && (c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1))
1072 	    {
1073 		c = safe_vgetc();
1074 		if (!utf_iscomposing(c))
1075 		{
1076 		    vungetc(c);		/* it wasn't, put it back */
1077 		    break;
1078 		}
1079 		else if (ca.ncharC1 == 0)
1080 		    ca.ncharC1 = c;
1081 		else
1082 		    ca.ncharC2 = c;
1083 	    }
1084 #endif
1085 	}
1086 	--no_mapping;
1087 	--allow_keys;
1088     }
1089 
1090 #ifdef FEAT_CMDL_INFO
1091     /*
1092      * Flush the showcmd characters onto the screen so we can see them while
1093      * the command is being executed.  Only do this when the shown command was
1094      * actually displayed, otherwise this will slow down a lot when executing
1095      * mappings.
1096      */
1097     if (need_flushbuf)
1098 	out_flush();
1099 #endif
1100 #ifdef FEAT_AUTOCMD
1101     did_cursorhold = FALSE;
1102 #endif
1103 
1104     State = NORMAL;
1105 
1106     if (ca.nchar == ESC)
1107     {
1108 	clearop(oap);
1109 	if (restart_edit == 0 && goto_im())
1110 	    restart_edit = 'a';
1111 	goto normal_end;
1112     }
1113 
1114     if (ca.cmdchar != K_IGNORE)
1115     {
1116 	msg_didout = FALSE;    /* don't scroll screen up for normal command */
1117 	msg_col = 0;
1118     }
1119 
1120 #ifdef FEAT_VISUAL
1121     old_pos = curwin->w_cursor;		/* remember where cursor was */
1122 
1123     /* When 'keymodel' contains "startsel" some keys start Select/Visual
1124      * mode. */
1125     if (!VIsual_active && km_startsel)
1126     {
1127 	if (nv_cmds[idx].cmd_flags & NV_SS)
1128 	{
1129 	    start_selection();
1130 	    unshift_special(&ca);
1131 	    idx = find_command(ca.cmdchar);
1132 	}
1133 	else if ((nv_cmds[idx].cmd_flags & NV_SSS)
1134 					   && (mod_mask & MOD_MASK_SHIFT))
1135 	{
1136 	    start_selection();
1137 	    mod_mask &= ~MOD_MASK_SHIFT;
1138 	}
1139     }
1140 #endif
1141 
1142     /*
1143      * Execute the command!
1144      * Call the command function found in the commands table.
1145      */
1146     ca.arg = nv_cmds[idx].cmd_arg;
1147     (nv_cmds[idx].cmd_func)(&ca);
1148 
1149     /*
1150      * If we didn't start or finish an operator, reset oap->regname, unless we
1151      * need it later.
1152      */
1153     if (!finish_op
1154 	    && !oap->op_type
1155 	    && (idx < 0 || !(nv_cmds[idx].cmd_flags & NV_KEEPREG)))
1156     {
1157 	clearop(oap);
1158 #ifdef FEAT_EVAL
1159 	set_reg_var('"');
1160 #endif
1161     }
1162 
1163 #ifdef FEAT_VISUAL
1164     /* Get the length of mapped chars again after typing a count, second
1165      * character or "z333<cr>". */
1166     if (old_mapped_len > 0)
1167 	old_mapped_len = typebuf_maplen();
1168 #endif
1169 
1170     /*
1171      * If an operation is pending, handle it...
1172      */
1173     do_pending_operator(&ca, old_col, FALSE);
1174 
1175     /*
1176      * Wait for a moment when a message is displayed that will be overwritten
1177      * by the mode message.
1178      * In Visual mode and with "^O" in Insert mode, a short message will be
1179      * overwritten by the mode message.  Wait a bit, until a key is hit.
1180      * In Visual mode, it's more important to keep the Visual area updated
1181      * than keeping a message (e.g. from a /pat search).
1182      * Only do this if the command was typed, not from a mapping.
1183      * Don't wait when emsg_silent is non-zero.
1184      * Also wait a bit after an error message, e.g. for "^O:".
1185      * Don't redraw the screen, it would remove the message.
1186      */
1187     if (       ((p_smd
1188 		    && msg_silent == 0
1189 		    && (restart_edit != 0
1190 #ifdef FEAT_VISUAL
1191 			|| (VIsual_active
1192 			    && old_pos.lnum == curwin->w_cursor.lnum
1193 			    && old_pos.col == curwin->w_cursor.col)
1194 #endif
1195 		       )
1196 		    && (clear_cmdline
1197 			|| redraw_cmdline)
1198 		    && (msg_didout || (msg_didany && msg_scroll))
1199 		    && !msg_nowait
1200 		    && KeyTyped)
1201 		|| (restart_edit != 0
1202 #ifdef FEAT_VISUAL
1203 		    && !VIsual_active
1204 #endif
1205 		    && (msg_scroll
1206 			|| emsg_on_display)))
1207 	    && oap->regname == 0
1208 	    && !(ca.retval & CA_COMMAND_BUSY)
1209 	    && stuff_empty()
1210 	    && typebuf_typed()
1211 	    && emsg_silent == 0
1212 	    && !did_wait_return
1213 	    && oap->op_type == OP_NOP)
1214     {
1215 	int	save_State = State;
1216 
1217 	/* Draw the cursor with the right shape here */
1218 	if (restart_edit != 0)
1219 	    State = INSERT;
1220 
1221 	/* If need to redraw, and there is a "keep_msg", redraw before the
1222 	 * delay */
1223 	if (must_redraw && keep_msg != NULL && !emsg_on_display)
1224 	{
1225 	    char_u	*kmsg;
1226 
1227 	    kmsg = keep_msg;
1228 	    keep_msg = NULL;
1229 	    /* showmode() will clear keep_msg, but we want to use it anyway */
1230 	    update_screen(0);
1231 	    /* now reset it, otherwise it's put in the history again */
1232 	    keep_msg = kmsg;
1233 	    msg_attr(kmsg, keep_msg_attr);
1234 	    vim_free(kmsg);
1235 	}
1236 	setcursor();
1237 	cursor_on();
1238 	out_flush();
1239 	if (msg_scroll || emsg_on_display)
1240 	    ui_delay(1000L, TRUE);	/* wait at least one second */
1241 	ui_delay(3000L, FALSE);		/* wait up to three seconds */
1242 	State = save_State;
1243 
1244 	msg_scroll = FALSE;
1245 	emsg_on_display = FALSE;
1246     }
1247 
1248     /*
1249      * Finish up after executing a Normal mode command.
1250      */
1251 normal_end:
1252 
1253     msg_nowait = FALSE;
1254 
1255     /* Reset finish_op, in case it was set */
1256 #ifdef CURSOR_SHAPE
1257     c = finish_op;
1258 #endif
1259     finish_op = FALSE;
1260 #ifdef CURSOR_SHAPE
1261     /* Redraw the cursor with another shape, if we were in Operator-pending
1262      * mode or did a replace command. */
1263     if (c || ca.cmdchar == 'r')
1264     {
1265 	ui_cursor_shape();		/* may show different cursor shape */
1266 # ifdef FEAT_MOUSESHAPE
1267 	update_mouseshape(-1);
1268 # endif
1269     }
1270 #endif
1271 
1272 #ifdef FEAT_CMDL_INFO
1273     if (oap->op_type == OP_NOP && oap->regname == 0)
1274 	clear_showcmd();
1275 #endif
1276 
1277     checkpcmark();		/* check if we moved since setting pcmark */
1278     vim_free(ca.searchbuf);
1279 
1280 #ifdef FEAT_MBYTE
1281     if (has_mbyte)
1282 	mb_adjust_cursor();
1283 #endif
1284 
1285 #ifdef FEAT_SCROLLBIND
1286     if (curwin->w_p_scb && toplevel)
1287     {
1288 	validate_cursor();	/* may need to update w_leftcol */
1289 	do_check_scrollbind(TRUE);
1290     }
1291 #endif
1292 
1293     /*
1294      * May restart edit(), if we got here with CTRL-O in Insert mode (but not
1295      * if still inside a mapping that started in Visual mode).
1296      * May switch from Visual to Select mode after CTRL-O command.
1297      */
1298     if (       oap->op_type == OP_NOP
1299 #ifdef FEAT_VISUAL
1300 	    && ((restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1301 		|| restart_VIsual_select == 1)
1302 #else
1303 	    && restart_edit != 0
1304 #endif
1305 	    && !(ca.retval & CA_COMMAND_BUSY)
1306 	    && stuff_empty()
1307 	    && oap->regname == 0)
1308     {
1309 #ifdef FEAT_VISUAL
1310 	if (restart_VIsual_select == 1)
1311 	{
1312 	    VIsual_select = TRUE;
1313 	    showmode();
1314 	    restart_VIsual_select = 0;
1315 	}
1316 #endif
1317 	if (restart_edit != 0
1318 #ifdef FEAT_VISUAL
1319 		&& !VIsual_active && old_mapped_len == 0
1320 #endif
1321 		)
1322 	    (void)edit(restart_edit, FALSE, 1L);
1323     }
1324 
1325 #ifdef FEAT_VISUAL
1326     if (restart_VIsual_select == 2)
1327 	restart_VIsual_select = 1;
1328 #endif
1329 
1330     /* Save count before an operator for next time. */
1331     opcount = ca.opcount;
1332 }
1333 
1334 /*
1335  * Handle an operator after visual mode or when the movement is finished
1336  */
1337     void
1338 do_pending_operator(cap, old_col, gui_yank)
1339     cmdarg_T	*cap;
1340     int		old_col;
1341     int		gui_yank;
1342 {
1343     oparg_T	*oap = cap->oap;
1344     pos_T	old_cursor;
1345     int		empty_region_error;
1346     int		restart_edit_save;
1347 
1348 #ifdef FEAT_VISUAL
1349     /* The visual area is remembered for redo */
1350     static int	    redo_VIsual_mode = NUL; /* 'v', 'V', or Ctrl-V */
1351     static linenr_T redo_VIsual_line_count; /* number of lines */
1352     static colnr_T  redo_VIsual_col;	    /* number of cols or end column */
1353     static long	    redo_VIsual_count;	    /* count for Visual operator */
1354 # ifdef FEAT_VIRTUALEDIT
1355     int		    include_line_break = FALSE;
1356 # endif
1357 #endif
1358 
1359 #if defined(FEAT_CLIPBOARD)
1360     /*
1361      * Yank the visual area into the GUI selection register before we operate
1362      * on it and lose it forever.
1363      * Don't do it if a specific register was specified, so that ""x"*P works.
1364      * This could call do_pending_operator() recursively, but that's OK
1365      * because gui_yank will be TRUE for the nested call.
1366      */
1367     if (clip_star.available
1368 	    && oap->op_type != OP_NOP
1369 	    && !gui_yank
1370 # ifdef FEAT_VISUAL
1371 	    && VIsual_active
1372 	    && !redo_VIsual_busy
1373 # endif
1374 	    && oap->regname == 0)
1375 	clip_auto_select();
1376 #endif
1377     old_cursor = curwin->w_cursor;
1378 
1379     /*
1380      * If an operation is pending, handle it...
1381      */
1382     if ((finish_op
1383 #ifdef FEAT_VISUAL
1384 		|| VIsual_active
1385 #endif
1386 		) && oap->op_type != OP_NOP)
1387     {
1388 #ifdef FEAT_VISUAL
1389 	oap->is_VIsual = VIsual_active;
1390 	if (oap->motion_force == 'V')
1391 	    oap->motion_type = MLINE;
1392 	else if (oap->motion_force == 'v')
1393 	{
1394 	    /* If the motion was linewise, "inclusive" will not have been set.
1395 	     * Use "exclusive" to be consistent.  Makes "dvj" work nice. */
1396 	    if (oap->motion_type == MLINE)
1397 		oap->inclusive = FALSE;
1398 	    /* If the motion already was characterwise, toggle "inclusive" */
1399 	    else if (oap->motion_type == MCHAR)
1400 		oap->inclusive = !oap->inclusive;
1401 	    oap->motion_type = MCHAR;
1402 	}
1403 	else if (oap->motion_force == Ctrl_V)
1404 	{
1405 	    /* Change line- or characterwise motion into Visual block mode. */
1406 	    VIsual_active = TRUE;
1407 	    VIsual = oap->start;
1408 	    VIsual_mode = Ctrl_V;
1409 	    VIsual_select = FALSE;
1410 	    VIsual_reselect = FALSE;
1411 	}
1412 #endif
1413 
1414 	/* only redo yank when 'y' flag is in 'cpoptions' */
1415 	/* never redo "zf" (define fold) */
1416 	if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1417 #ifdef FEAT_VISUAL
1418 		&& (!VIsual_active || oap->motion_force)
1419 #endif
1420 		&& cap->cmdchar != 'D'
1421 #ifdef FEAT_FOLDING
1422 		&& oap->op_type != OP_FOLD
1423 		&& oap->op_type != OP_FOLDOPEN
1424 		&& oap->op_type != OP_FOLDOPENREC
1425 		&& oap->op_type != OP_FOLDCLOSE
1426 		&& oap->op_type != OP_FOLDCLOSEREC
1427 		&& oap->op_type != OP_FOLDDEL
1428 		&& oap->op_type != OP_FOLDDELREC
1429 #endif
1430 		)
1431 	{
1432 	    prep_redo(oap->regname, cap->count0,
1433 		    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1434 		    oap->motion_force, cap->cmdchar, cap->nchar);
1435 	    if (cap->cmdchar == '/' || cap->cmdchar == '?') /* was a search */
1436 	    {
1437 		/*
1438 		 * If 'cpoptions' does not contain 'r', insert the search
1439 		 * pattern to really repeat the same command.
1440 		 */
1441 		if (vim_strchr(p_cpo, CPO_REDO) == NULL)
1442 		    AppendToRedobuffLit(cap->searchbuf, -1);
1443 		AppendToRedobuff(NL_STR);
1444 	    }
1445 	    else if (cap->cmdchar == ':')
1446 	    {
1447 		/* do_cmdline() has stored the first typed line in
1448 		 * "repeat_cmdline".  When several lines are typed repeating
1449 		 * won't be possible. */
1450 		if (repeat_cmdline == NULL)
1451 		    ResetRedobuff();
1452 		else
1453 		{
1454 		    AppendToRedobuffLit(repeat_cmdline, -1);
1455 		    AppendToRedobuff(NL_STR);
1456 		    vim_free(repeat_cmdline);
1457 		    repeat_cmdline = NULL;
1458 		}
1459 	    }
1460 	}
1461 
1462 #ifdef FEAT_VISUAL
1463 	if (redo_VIsual_busy)
1464 	{
1465 	    oap->start = curwin->w_cursor;
1466 	    curwin->w_cursor.lnum += redo_VIsual_line_count - 1;
1467 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1468 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1469 	    VIsual_mode = redo_VIsual_mode;
1470 	    if (VIsual_mode == 'v')
1471 	    {
1472 		if (redo_VIsual_line_count <= 1)
1473 		    curwin->w_cursor.col += redo_VIsual_col - 1;
1474 		else
1475 		    curwin->w_cursor.col = redo_VIsual_col;
1476 	    }
1477 	    if (redo_VIsual_col == MAXCOL)
1478 	    {
1479 		curwin->w_curswant = MAXCOL;
1480 		coladvance((colnr_T)MAXCOL);
1481 	    }
1482 	    cap->count0 = redo_VIsual_count;
1483 	    if (redo_VIsual_count != 0)
1484 		cap->count1 = redo_VIsual_count;
1485 	    else
1486 		cap->count1 = 1;
1487 	}
1488 	else if (VIsual_active)
1489 	{
1490 	    /* Save the current VIsual area for '< and '> marks, and "gv" */
1491 	    curbuf->b_visual.vi_start = VIsual;
1492 	    curbuf->b_visual.vi_end = curwin->w_cursor;
1493 	    curbuf->b_visual.vi_mode = VIsual_mode;
1494 	    curbuf->b_visual.vi_curswant = curwin->w_curswant;
1495 # ifdef FEAT_EVAL
1496 	    curbuf->b_visual_mode_eval = VIsual_mode;
1497 # endif
1498 
1499 	    /* In Select mode, a linewise selection is operated upon like a
1500 	     * characterwise selection. */
1501 	    if (VIsual_select && VIsual_mode == 'V')
1502 	    {
1503 		if (lt(VIsual, curwin->w_cursor))
1504 		{
1505 		    VIsual.col = 0;
1506 		    curwin->w_cursor.col =
1507 			       (colnr_T)STRLEN(ml_get(curwin->w_cursor.lnum));
1508 		}
1509 		else
1510 		{
1511 		    curwin->w_cursor.col = 0;
1512 		    VIsual.col = (colnr_T)STRLEN(ml_get(VIsual.lnum));
1513 		}
1514 		VIsual_mode = 'v';
1515 	    }
1516 	    /* If 'selection' is "exclusive", backup one character for
1517 	     * charwise selections. */
1518 	    else if (VIsual_mode == 'v')
1519 	    {
1520 # ifdef FEAT_VIRTUALEDIT
1521 		include_line_break =
1522 # endif
1523 		    unadjust_for_sel();
1524 	    }
1525 
1526 	    oap->start = VIsual;
1527 	    if (VIsual_mode == 'V')
1528 		oap->start.col = 0;
1529 	}
1530 #endif /* FEAT_VISUAL */
1531 
1532 	/*
1533 	 * Set oap->start to the first position of the operated text, oap->end
1534 	 * to the end of the operated text.  w_cursor is equal to oap->start.
1535 	 */
1536 	if (lt(oap->start, curwin->w_cursor))
1537 	{
1538 #ifdef FEAT_FOLDING
1539 	    /* Include folded lines completely. */
1540 	    if (!VIsual_active)
1541 	    {
1542 		if (hasFolding(oap->start.lnum, &oap->start.lnum, NULL))
1543 		    oap->start.col = 0;
1544 		if (hasFolding(curwin->w_cursor.lnum, NULL,
1545 						      &curwin->w_cursor.lnum))
1546 		    curwin->w_cursor.col = (colnr_T)STRLEN(ml_get_curline());
1547 	    }
1548 #endif
1549 	    oap->end = curwin->w_cursor;
1550 	    curwin->w_cursor = oap->start;
1551 
1552 	    /* w_virtcol may have been updated; if the cursor goes back to its
1553 	     * previous position w_virtcol becomes invalid and isn't updated
1554 	     * automatically. */
1555 	    curwin->w_valid &= ~VALID_VIRTCOL;
1556 	}
1557 	else
1558 	{
1559 #ifdef FEAT_FOLDING
1560 	    /* Include folded lines completely. */
1561 	    if (!VIsual_active && oap->motion_type == MLINE)
1562 	    {
1563 		if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum,
1564 									NULL))
1565 		    curwin->w_cursor.col = 0;
1566 		if (hasFolding(oap->start.lnum, NULL, &oap->start.lnum))
1567 		    oap->start.col = (colnr_T)STRLEN(ml_get(oap->start.lnum));
1568 	    }
1569 #endif
1570 	    oap->end = oap->start;
1571 	    oap->start = curwin->w_cursor;
1572 	}
1573 
1574 	oap->line_count = oap->end.lnum - oap->start.lnum + 1;
1575 
1576 #ifdef FEAT_VIRTUALEDIT
1577 	/* Set "virtual_op" before resetting VIsual_active. */
1578 	virtual_op = virtual_active();
1579 #endif
1580 
1581 #ifdef FEAT_VISUAL
1582 	if (VIsual_active || redo_VIsual_busy)
1583 	{
1584 	    if (VIsual_mode == Ctrl_V)	/* block mode */
1585 	    {
1586 		colnr_T	    start, end;
1587 
1588 		oap->block_mode = TRUE;
1589 
1590 		getvvcol(curwin, &(oap->start),
1591 				      &oap->start_vcol, NULL, &oap->end_vcol);
1592 		if (!redo_VIsual_busy)
1593 		{
1594 		    getvvcol(curwin, &(oap->end), &start, NULL, &end);
1595 
1596 		    if (start < oap->start_vcol)
1597 			oap->start_vcol = start;
1598 		    if (end > oap->end_vcol)
1599 		    {
1600 			if (*p_sel == 'e' && start >= 1
1601 						&& start - 1 >= oap->end_vcol)
1602 			    oap->end_vcol = start - 1;
1603 			else
1604 			    oap->end_vcol = end;
1605 		    }
1606 		}
1607 
1608 		/* if '$' was used, get oap->end_vcol from longest line */
1609 		if (curwin->w_curswant == MAXCOL)
1610 		{
1611 		    curwin->w_cursor.col = MAXCOL;
1612 		    oap->end_vcol = 0;
1613 		    for (curwin->w_cursor.lnum = oap->start.lnum;
1614 			    curwin->w_cursor.lnum <= oap->end.lnum;
1615 						      ++curwin->w_cursor.lnum)
1616 		    {
1617 			getvvcol(curwin, &curwin->w_cursor, NULL, NULL, &end);
1618 			if (end > oap->end_vcol)
1619 			    oap->end_vcol = end;
1620 		    }
1621 		}
1622 		else if (redo_VIsual_busy)
1623 		    oap->end_vcol = oap->start_vcol + redo_VIsual_col - 1;
1624 		/*
1625 		 * Correct oap->end.col and oap->start.col to be the
1626 		 * upper-left and lower-right corner of the block area.
1627 		 *
1628 		 * (Actually, this does convert column positions into character
1629 		 * positions)
1630 		 */
1631 		curwin->w_cursor.lnum = oap->end.lnum;
1632 		coladvance(oap->end_vcol);
1633 		oap->end = curwin->w_cursor;
1634 
1635 		curwin->w_cursor = oap->start;
1636 		coladvance(oap->start_vcol);
1637 		oap->start = curwin->w_cursor;
1638 	    }
1639 
1640 	    if (!redo_VIsual_busy && !gui_yank)
1641 	    {
1642 		/*
1643 		 * Prepare to reselect and redo Visual: this is based on the
1644 		 * size of the Visual text
1645 		 */
1646 		resel_VIsual_mode = VIsual_mode;
1647 		if (curwin->w_curswant == MAXCOL)
1648 		    resel_VIsual_col = MAXCOL;
1649 		else if (VIsual_mode == Ctrl_V)
1650 		    resel_VIsual_col = oap->end_vcol - oap->start_vcol + 1;
1651 		else if (oap->line_count > 1)
1652 		    resel_VIsual_col = oap->end.col;
1653 		else
1654 		    resel_VIsual_col = oap->end.col - oap->start.col + 1;
1655 		resel_VIsual_line_count = oap->line_count;
1656 	    }
1657 
1658 	    /* can't redo yank (unless 'y' is in 'cpoptions') and ":" */
1659 	    if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1660 		    && oap->op_type != OP_COLON
1661 #ifdef FEAT_FOLDING
1662 		    && oap->op_type != OP_FOLD
1663 		    && oap->op_type != OP_FOLDOPEN
1664 		    && oap->op_type != OP_FOLDOPENREC
1665 		    && oap->op_type != OP_FOLDCLOSE
1666 		    && oap->op_type != OP_FOLDCLOSEREC
1667 		    && oap->op_type != OP_FOLDDEL
1668 		    && oap->op_type != OP_FOLDDELREC
1669 #endif
1670 		    && oap->motion_force == NUL
1671 		    )
1672 	    {
1673 		/* Prepare for redoing.  Only use the nchar field for "r",
1674 		 * otherwise it might be the second char of the operator. */
1675 		prep_redo(oap->regname, 0L, NUL, 'v',
1676 				get_op_char(oap->op_type),
1677 				get_extra_op_char(oap->op_type),
1678 				oap->op_type == OP_REPLACE ? cap->nchar : NUL);
1679 		if (!redo_VIsual_busy)
1680 		{
1681 		    redo_VIsual_mode = resel_VIsual_mode;
1682 		    redo_VIsual_col = resel_VIsual_col;
1683 		    redo_VIsual_line_count = resel_VIsual_line_count;
1684 		    redo_VIsual_count = cap->count0;
1685 		}
1686 	    }
1687 
1688 	    /*
1689 	     * oap->inclusive defaults to TRUE.
1690 	     * If oap->end is on a NUL (empty line) oap->inclusive becomes
1691 	     * FALSE.  This makes "d}P" and "v}dP" work the same.
1692 	     */
1693 	    if (oap->motion_force == NUL || oap->motion_type == MLINE)
1694 		oap->inclusive = TRUE;
1695 	    if (VIsual_mode == 'V')
1696 		oap->motion_type = MLINE;
1697 	    else
1698 	    {
1699 		oap->motion_type = MCHAR;
1700 		if (VIsual_mode != Ctrl_V && *ml_get_pos(&(oap->end)) == NUL
1701 # ifdef FEAT_VIRTUALEDIT
1702 			&& (include_line_break || !virtual_op)
1703 # endif
1704 			)
1705 		{
1706 		    oap->inclusive = FALSE;
1707 		    /* Try to include the newline, unless it's an operator
1708 		     * that works on lines only */
1709 		    if (*p_sel != 'o'
1710 			    && !op_on_lines(oap->op_type)
1711 			    && oap->end.lnum < curbuf->b_ml.ml_line_count)
1712 		    {
1713 			++oap->end.lnum;
1714 			oap->end.col = 0;
1715 # ifdef FEAT_VIRTUALEDIT
1716 			oap->end.coladd = 0;
1717 # endif
1718 			++oap->line_count;
1719 		    }
1720 		}
1721 	    }
1722 
1723 	    redo_VIsual_busy = FALSE;
1724 
1725 	    /*
1726 	     * Switch Visual off now, so screen updating does
1727 	     * not show inverted text when the screen is redrawn.
1728 	     * With OP_YANK and sometimes with OP_COLON and OP_FILTER there is
1729 	     * no screen redraw, so it is done here to remove the inverted
1730 	     * part.
1731 	     */
1732 	    if (!gui_yank)
1733 	    {
1734 		VIsual_active = FALSE;
1735 # ifdef FEAT_MOUSE
1736 		setmouse();
1737 		mouse_dragging = 0;
1738 # endif
1739 		if (mode_displayed)
1740 		    clear_cmdline = TRUE;   /* unshow visual mode later */
1741 #ifdef FEAT_CMDL_INFO
1742 		else
1743 		    clear_showcmd();
1744 #endif
1745 		if ((oap->op_type == OP_YANK
1746 			    || oap->op_type == OP_COLON
1747 			    || oap->op_type == OP_FUNCTION
1748 			    || oap->op_type == OP_FILTER)
1749 			&& oap->motion_force == NUL)
1750 		    redraw_curbuf_later(INVERTED);
1751 	    }
1752 	}
1753 #endif
1754 
1755 #ifdef FEAT_MBYTE
1756 	/* Include the trailing byte of a multi-byte char. */
1757 	if (has_mbyte && oap->inclusive)
1758 	{
1759 	    int		l;
1760 
1761 	    l = (*mb_ptr2len)(ml_get_pos(&oap->end));
1762 	    if (l > 1)
1763 		oap->end.col += l - 1;
1764 	}
1765 #endif
1766 	curwin->w_set_curswant = TRUE;
1767 
1768 	/*
1769 	 * oap->empty is set when start and end are the same.  The inclusive
1770 	 * flag affects this too, unless yanking and the end is on a NUL.
1771 	 */
1772 	oap->empty = (oap->motion_type == MCHAR
1773 		    && (!oap->inclusive
1774 			|| (oap->op_type == OP_YANK
1775 			    && gchar_pos(&oap->end) == NUL))
1776 		    && equalpos(oap->start, oap->end)
1777 #ifdef FEAT_VIRTUALEDIT
1778 		    && !(virtual_op && oap->start.coladd != oap->end.coladd)
1779 #endif
1780 		    );
1781 	/*
1782 	 * For delete, change and yank, it's an error to operate on an
1783 	 * empty region, when 'E' included in 'cpoptions' (Vi compatible).
1784 	 */
1785 	empty_region_error = (oap->empty
1786 				&& vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL);
1787 
1788 #ifdef FEAT_VISUAL
1789 	/* Force a redraw when operating on an empty Visual region, when
1790 	 * 'modifiable is off or creating a fold. */
1791 	if (oap->is_VIsual && (oap->empty || !curbuf->b_p_ma
1792 # ifdef FEAT_FOLDING
1793 		    || oap->op_type == OP_FOLD
1794 # endif
1795 		    ))
1796 	    redraw_curbuf_later(INVERTED);
1797 #endif
1798 
1799 	/*
1800 	 * If the end of an operator is in column one while oap->motion_type
1801 	 * is MCHAR and oap->inclusive is FALSE, we put op_end after the last
1802 	 * character in the previous line. If op_start is on or before the
1803 	 * first non-blank in the line, the operator becomes linewise
1804 	 * (strange, but that's the way vi does it).
1805 	 */
1806 	if (	   oap->motion_type == MCHAR
1807 		&& oap->inclusive == FALSE
1808 		&& !(cap->retval & CA_NO_ADJ_OP_END)
1809 		&& oap->end.col == 0
1810 #ifdef FEAT_VISUAL
1811 		&& (!oap->is_VIsual || *p_sel == 'o')
1812 		&& !oap->block_mode
1813 #endif
1814 		&& oap->line_count > 1)
1815 	{
1816 	    oap->end_adjusted = TRUE;	    /* remember that we did this */
1817 	    --oap->line_count;
1818 	    --oap->end.lnum;
1819 	    if (inindent(0))
1820 		oap->motion_type = MLINE;
1821 	    else
1822 	    {
1823 		oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
1824 		if (oap->end.col)
1825 		{
1826 		    --oap->end.col;
1827 		    oap->inclusive = TRUE;
1828 		}
1829 	    }
1830 	}
1831 	else
1832 	    oap->end_adjusted = FALSE;
1833 
1834 	switch (oap->op_type)
1835 	{
1836 	case OP_LSHIFT:
1837 	case OP_RSHIFT:
1838 	    op_shift(oap, TRUE,
1839 #ifdef FEAT_VISUAL
1840 		    oap->is_VIsual ? (int)cap->count1 :
1841 #endif
1842 		    1);
1843 	    auto_format(FALSE, TRUE);
1844 	    break;
1845 
1846 	case OP_JOIN_NS:
1847 	case OP_JOIN:
1848 	    if (oap->line_count < 2)
1849 		oap->line_count = 2;
1850 	    if (curwin->w_cursor.lnum + oap->line_count - 1 >
1851 						   curbuf->b_ml.ml_line_count)
1852 		beep_flush();
1853 	    else
1854 	    {
1855 		do_do_join(oap->line_count, oap->op_type == OP_JOIN);
1856 		auto_format(FALSE, TRUE);
1857 	    }
1858 	    break;
1859 
1860 	case OP_DELETE:
1861 #ifdef FEAT_VISUAL
1862 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1863 #endif
1864 	    if (empty_region_error)
1865 		vim_beep();
1866 	    else
1867 	    {
1868 		(void)op_delete(oap);
1869 		if (oap->motion_type == MLINE && has_format_option(FO_AUTO))
1870 		    u_save_cursor();	    /* cursor line wasn't saved yet */
1871 		auto_format(FALSE, TRUE);
1872 	    }
1873 	    break;
1874 
1875 	case OP_YANK:
1876 	    if (empty_region_error)
1877 	    {
1878 		if (!gui_yank)
1879 		    vim_beep();
1880 	    }
1881 	    else
1882 		(void)op_yank(oap, FALSE, !gui_yank);
1883 	    check_cursor_col();
1884 	    break;
1885 
1886 	case OP_CHANGE:
1887 #ifdef FEAT_VISUAL
1888 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1889 #endif
1890 	    if (empty_region_error)
1891 		vim_beep();
1892 	    else
1893 	    {
1894 		/* This is a new edit command, not a restart.  Need to
1895 		 * remember it to make 'insertmode' work with mappings for
1896 		 * Visual mode.  But do this only once and not when typed and
1897 		 * 'insertmode' isn't set. */
1898 		if (p_im || !KeyTyped)
1899 		    restart_edit_save = restart_edit;
1900 		else
1901 		    restart_edit_save = 0;
1902 		restart_edit = 0;
1903 		/* Reset finish_op now, don't want it set inside edit(). */
1904 		finish_op = FALSE;
1905 		if (op_change(oap))	/* will call edit() */
1906 		    cap->retval |= CA_COMMAND_BUSY;
1907 		if (restart_edit == 0)
1908 		    restart_edit = restart_edit_save;
1909 	    }
1910 	    break;
1911 
1912 	case OP_FILTER:
1913 	    if (vim_strchr(p_cpo, CPO_FILTER) != NULL)
1914 		AppendToRedobuff((char_u *)"!\r");  /* use any last used !cmd */
1915 	    else
1916 		bangredo = TRUE;    /* do_bang() will put cmd in redo buffer */
1917 
1918 	case OP_INDENT:
1919 	case OP_COLON:
1920 
1921 #if defined(FEAT_LISP) || defined(FEAT_CINDENT)
1922 	    /*
1923 	     * If 'equalprg' is empty, do the indenting internally.
1924 	     */
1925 	    if (oap->op_type == OP_INDENT && *get_equalprg() == NUL)
1926 	    {
1927 # ifdef FEAT_LISP
1928 		if (curbuf->b_p_lisp)
1929 		{
1930 		    op_reindent(oap, get_lisp_indent);
1931 		    break;
1932 		}
1933 # endif
1934 # ifdef FEAT_CINDENT
1935 		op_reindent(oap,
1936 #  ifdef FEAT_EVAL
1937 			*curbuf->b_p_inde != NUL ? get_expr_indent :
1938 #  endif
1939 			    get_c_indent);
1940 		break;
1941 # endif
1942 	    }
1943 #endif
1944 
1945 	    op_colon(oap);
1946 	    break;
1947 
1948 	case OP_TILDE:
1949 	case OP_UPPER:
1950 	case OP_LOWER:
1951 	case OP_ROT13:
1952 	    if (empty_region_error)
1953 		vim_beep();
1954 	    else
1955 		op_tilde(oap);
1956 	    check_cursor_col();
1957 	    break;
1958 
1959 	case OP_FORMAT:
1960 #if defined(FEAT_EVAL)
1961 	    if (*curbuf->b_p_fex != NUL)
1962 		op_formatexpr(oap);	/* use expression */
1963 	    else
1964 #endif
1965 		if (*p_fp != NUL)
1966 		op_colon(oap);		/* use external command */
1967 	    else
1968 		op_format(oap, FALSE);	/* use internal function */
1969 	    break;
1970 
1971 	case OP_FORMAT2:
1972 	    op_format(oap, TRUE);	/* use internal function */
1973 	    break;
1974 
1975 	case OP_FUNCTION:
1976 	    op_function(oap);		/* call 'operatorfunc' */
1977 	    break;
1978 
1979 	case OP_INSERT:
1980 	case OP_APPEND:
1981 #ifdef FEAT_VISUAL
1982 	    VIsual_reselect = FALSE;	/* don't reselect now */
1983 #endif
1984 #ifdef FEAT_VISUALEXTRA
1985 	    if (empty_region_error)
1986 		vim_beep();
1987 	    else
1988 	    {
1989 		/* This is a new edit command, not a restart.  Need to
1990 		 * remember it to make 'insertmode' work with mappings for
1991 		 * Visual mode.  But do this only once. */
1992 		restart_edit_save = restart_edit;
1993 		restart_edit = 0;
1994 
1995 		op_insert(oap, cap->count1);
1996 
1997 		/* TODO: when inserting in several lines, should format all
1998 		 * the lines. */
1999 		auto_format(FALSE, TRUE);
2000 
2001 		if (restart_edit == 0)
2002 		    restart_edit = restart_edit_save;
2003 	    }
2004 #else
2005 	    vim_beep();
2006 #endif
2007 	    break;
2008 
2009 	case OP_REPLACE:
2010 #ifdef FEAT_VISUAL
2011 	    VIsual_reselect = FALSE;	/* don't reselect now */
2012 #endif
2013 #ifdef FEAT_VISUALEXTRA
2014 	    if (empty_region_error)
2015 #endif
2016 		vim_beep();
2017 #ifdef FEAT_VISUALEXTRA
2018 	    else
2019 		op_replace(oap, cap->nchar);
2020 #endif
2021 	    break;
2022 
2023 #ifdef FEAT_FOLDING
2024 	case OP_FOLD:
2025 	    VIsual_reselect = FALSE;	/* don't reselect now */
2026 	    foldCreate(oap->start.lnum, oap->end.lnum);
2027 	    break;
2028 
2029 	case OP_FOLDOPEN:
2030 	case OP_FOLDOPENREC:
2031 	case OP_FOLDCLOSE:
2032 	case OP_FOLDCLOSEREC:
2033 	    VIsual_reselect = FALSE;	/* don't reselect now */
2034 	    opFoldRange(oap->start.lnum, oap->end.lnum,
2035 		    oap->op_type == OP_FOLDOPEN
2036 					    || oap->op_type == OP_FOLDOPENREC,
2037 		    oap->op_type == OP_FOLDOPENREC
2038 					  || oap->op_type == OP_FOLDCLOSEREC,
2039 					  oap->is_VIsual);
2040 	    break;
2041 
2042 	case OP_FOLDDEL:
2043 	case OP_FOLDDELREC:
2044 	    VIsual_reselect = FALSE;	/* don't reselect now */
2045 	    deleteFold(oap->start.lnum, oap->end.lnum,
2046 			       oap->op_type == OP_FOLDDELREC, oap->is_VIsual);
2047 	    break;
2048 #endif
2049 	default:
2050 	    clearopbeep(oap);
2051 	}
2052 #ifdef FEAT_VIRTUALEDIT
2053 	virtual_op = MAYBE;
2054 #endif
2055 	if (!gui_yank)
2056 	{
2057 	    /*
2058 	     * if 'sol' not set, go back to old column for some commands
2059 	     */
2060 	    if (!p_sol && oap->motion_type == MLINE && !oap->end_adjusted
2061 		    && (oap->op_type == OP_LSHIFT || oap->op_type == OP_RSHIFT
2062 						|| oap->op_type == OP_DELETE))
2063 		coladvance(curwin->w_curswant = old_col);
2064 	}
2065 	else
2066 	{
2067 	    curwin->w_cursor = old_cursor;
2068 	}
2069 #ifdef FEAT_VISUAL
2070 	oap->block_mode = FALSE;
2071 #endif
2072 	clearop(oap);
2073     }
2074 }
2075 
2076 /*
2077  * Handle indent and format operators and visual mode ":".
2078  */
2079     static void
2080 op_colon(oap)
2081     oparg_T	*oap;
2082 {
2083     stuffcharReadbuff(':');
2084 #ifdef FEAT_VISUAL
2085     if (oap->is_VIsual)
2086 	stuffReadbuff((char_u *)"'<,'>");
2087     else
2088 #endif
2089     {
2090 	/*
2091 	 * Make the range look nice, so it can be repeated.
2092 	 */
2093 	if (oap->start.lnum == curwin->w_cursor.lnum)
2094 	    stuffcharReadbuff('.');
2095 	else
2096 	    stuffnumReadbuff((long)oap->start.lnum);
2097 	if (oap->end.lnum != oap->start.lnum)
2098 	{
2099 	    stuffcharReadbuff(',');
2100 	    if (oap->end.lnum == curwin->w_cursor.lnum)
2101 		stuffcharReadbuff('.');
2102 	    else if (oap->end.lnum == curbuf->b_ml.ml_line_count)
2103 		stuffcharReadbuff('$');
2104 	    else if (oap->start.lnum == curwin->w_cursor.lnum)
2105 	    {
2106 		stuffReadbuff((char_u *)".+");
2107 		stuffnumReadbuff((long)oap->line_count - 1);
2108 	    }
2109 	    else
2110 		stuffnumReadbuff((long)oap->end.lnum);
2111 	}
2112     }
2113     if (oap->op_type != OP_COLON)
2114 	stuffReadbuff((char_u *)"!");
2115     if (oap->op_type == OP_INDENT)
2116     {
2117 #ifndef FEAT_CINDENT
2118 	if (*get_equalprg() == NUL)
2119 	    stuffReadbuff((char_u *)"indent");
2120 	else
2121 #endif
2122 	    stuffReadbuff(get_equalprg());
2123 	stuffReadbuff((char_u *)"\n");
2124     }
2125     else if (oap->op_type == OP_FORMAT)
2126     {
2127 	if (*p_fp == NUL)
2128 	    stuffReadbuff((char_u *)"fmt");
2129 	else
2130 	    stuffReadbuff(p_fp);
2131 	stuffReadbuff((char_u *)"\n']");
2132     }
2133 
2134     /*
2135      * do_cmdline() does the rest
2136      */
2137 }
2138 
2139 /*
2140  * Handle the "g@" operator: call 'operatorfunc'.
2141  */
2142 /*ARGSUSED*/
2143     static void
2144 op_function(oap)
2145     oparg_T	*oap;
2146 {
2147 #ifdef FEAT_EVAL
2148     char_u	*(argv[1]);
2149 
2150     if (*p_opfunc == NUL)
2151 	EMSG(_("E774: 'operatorfunc' is empty"));
2152     else
2153     {
2154 	/* Set '[ and '] marks to text to be operated on. */
2155 	curbuf->b_op_start = oap->start;
2156 	curbuf->b_op_end = oap->end;
2157 	if (oap->motion_type != MLINE && !oap->inclusive)
2158 	    /* Exclude the end position. */
2159 	    decl(&curbuf->b_op_end);
2160 
2161 	if (oap->block_mode)
2162 	    argv[0] = (char_u *)"block";
2163 	else if (oap->motion_type == MLINE)
2164 	    argv[0] = (char_u *)"line";
2165 	else
2166 	    argv[0] = (char_u *)"char";
2167 	(void)call_func_retnr(p_opfunc, 1, argv, FALSE);
2168     }
2169 #else
2170     EMSG(_("E775: Eval feature not available"));
2171 #endif
2172 }
2173 
2174 #if defined(FEAT_MOUSE) || defined(PROTO)
2175 /*
2176  * Do the appropriate action for the current mouse click in the current mode.
2177  * Not used for Command-line mode.
2178  *
2179  * Normal Mode:
2180  * event	 modi-	position      visual	   change   action
2181  *		 fier	cursor			   window
2182  * left press	  -	yes	    end		    yes
2183  * left press	  C	yes	    end		    yes	    "^]" (2)
2184  * left press	  S	yes	    end		    yes	    "*" (2)
2185  * left drag	  -	yes	start if moved	    no
2186  * left relse	  -	yes	start if moved	    no
2187  * middle press	  -	yes	 if not active	    no	    put register
2188  * middle press	  -	yes	 if active	    no	    yank and put
2189  * right press	  -	yes	start or extend	    yes
2190  * right press	  S	yes	no change	    yes	    "#" (2)
2191  * right drag	  -	yes	extend		    no
2192  * right relse	  -	yes	extend		    no
2193  *
2194  * Insert or Replace Mode:
2195  * event	 modi-	position      visual	   change   action
2196  *		 fier	cursor			   window
2197  * left press	  -	yes	(cannot be active)  yes
2198  * left press	  C	yes	(cannot be active)  yes	    "CTRL-O^]" (2)
2199  * left press	  S	yes	(cannot be active)  yes	    "CTRL-O*" (2)
2200  * left drag	  -	yes	start or extend (1) no	    CTRL-O (1)
2201  * left relse	  -	yes	start or extend (1) no	    CTRL-O (1)
2202  * middle press	  -	no	(cannot be active)  no	    put register
2203  * right press	  -	yes	start or extend	    yes	    CTRL-O
2204  * right press	  S	yes	(cannot be active)  yes	    "CTRL-O#" (2)
2205  *
2206  * (1) only if mouse pointer moved since press
2207  * (2) only if click is in same buffer
2208  *
2209  * Return TRUE if start_arrow() should be called for edit mode.
2210  */
2211     int
2212 do_mouse(oap, c, dir, count, fixindent)
2213     oparg_T	*oap;		/* operator argument, can be NULL */
2214     int		c;		/* K_LEFTMOUSE, etc */
2215     int		dir;		/* Direction to 'put' if necessary */
2216     long	count;
2217     int		fixindent;	/* PUT_FIXINDENT if fixing indent necessary */
2218 {
2219     static int	do_always = FALSE;	/* ignore 'mouse' setting next time */
2220     static int	got_click = FALSE;	/* got a click some time back */
2221 
2222     int		which_button;	/* MOUSE_LEFT, _MIDDLE or _RIGHT */
2223     int		is_click;	/* If FALSE it's a drag or release event */
2224     int		is_drag;	/* If TRUE it's a drag event */
2225     int		jump_flags = 0;	/* flags for jump_to_mouse() */
2226     pos_T	start_visual;
2227     int		moved;		/* Has cursor moved? */
2228     int		in_status_line;	/* mouse in status line */
2229 #ifdef FEAT_VERTSPLIT
2230     int		in_sep_line;	/* mouse in vertical separator line */
2231 #endif
2232     int		c1, c2;
2233 #if defined(FEAT_FOLDING)
2234     pos_T	save_cursor;
2235 #endif
2236     win_T	*old_curwin = curwin;
2237 #ifdef FEAT_VISUAL
2238     static pos_T orig_cursor;
2239     colnr_T	leftcol, rightcol;
2240     pos_T	end_visual;
2241     int		diff;
2242     int		old_active = VIsual_active;
2243     int		old_mode = VIsual_mode;
2244 #endif
2245     int		regname;
2246 
2247 #if defined(FEAT_FOLDING)
2248     save_cursor = curwin->w_cursor;
2249 #endif
2250 
2251     /*
2252      * When GUI is active, always recognize mouse events, otherwise:
2253      * - Ignore mouse event in normal mode if 'mouse' doesn't include 'n'.
2254      * - Ignore mouse event in visual mode if 'mouse' doesn't include 'v'.
2255      * - For command line and insert mode 'mouse' is checked before calling
2256      *	 do_mouse().
2257      */
2258     if (do_always)
2259 	do_always = FALSE;
2260     else
2261 #ifdef FEAT_GUI
2262 	if (!gui.in_use)
2263 #endif
2264 	{
2265 #ifdef FEAT_VISUAL
2266 	    if (VIsual_active)
2267 	    {
2268 		if (!mouse_has(MOUSE_VISUAL))
2269 		    return FALSE;
2270 	    }
2271 	    else
2272 #endif
2273 		if (State == NORMAL && !mouse_has(MOUSE_NORMAL))
2274 		return FALSE;
2275 	}
2276 
2277     which_button = get_mouse_button(KEY2TERMCAP1(c), &is_click, &is_drag);
2278 
2279 #ifdef FEAT_MOUSESHAPE
2280     /* May have stopped dragging the status or separator line.  The pointer is
2281      * most likely still on the status or separator line. */
2282     if (!is_drag && drag_status_line)
2283     {
2284 	drag_status_line = FALSE;
2285 	update_mouseshape(SHAPE_IDX_STATUS);
2286     }
2287 # ifdef FEAT_VERTSPLIT
2288     if (!is_drag && drag_sep_line)
2289     {
2290 	drag_sep_line = FALSE;
2291 	update_mouseshape(SHAPE_IDX_VSEP);
2292     }
2293 # endif
2294 #endif
2295 
2296     /*
2297      * Ignore drag and release events if we didn't get a click.
2298      */
2299     if (is_click)
2300 	got_click = TRUE;
2301     else
2302     {
2303 	if (!got_click)			/* didn't get click, ignore */
2304 	    return FALSE;
2305 	if (!is_drag)			/* release, reset got_click */
2306 	    got_click = FALSE;
2307     }
2308 
2309 #ifndef FEAT_VISUAL
2310     /*
2311      * ALT is only used for starging/extending Visual mode.
2312      */
2313     if ((mod_mask & MOD_MASK_ALT))
2314 	return FALSE;
2315 #endif
2316 
2317     /*
2318      * CTRL right mouse button does CTRL-T
2319      */
2320     if (is_click && (mod_mask & MOD_MASK_CTRL) && which_button == MOUSE_RIGHT)
2321     {
2322 	if (State & INSERT)
2323 	    stuffcharReadbuff(Ctrl_O);
2324 	if (count > 1)
2325 	    stuffnumReadbuff(count);
2326 	stuffcharReadbuff(Ctrl_T);
2327 	got_click = FALSE;		/* ignore drag&release now */
2328 	return FALSE;
2329     }
2330 
2331     /*
2332      * CTRL only works with left mouse button
2333      */
2334     if ((mod_mask & MOD_MASK_CTRL) && which_button != MOUSE_LEFT)
2335 	return FALSE;
2336 
2337     /*
2338      * When a modifier is down, ignore drag and release events, as well as
2339      * multiple clicks and the middle mouse button.
2340      * Accept shift-leftmouse drags when 'mousemodel' is "popup.*".
2341      */
2342     if ((mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL | MOD_MASK_ALT
2343 							     | MOD_MASK_META))
2344 	    && (!is_click
2345 		|| (mod_mask & MOD_MASK_MULTI_CLICK)
2346 		|| which_button == MOUSE_MIDDLE)
2347 	    && !((mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT))
2348 		&& mouse_model_popup()
2349 		&& which_button == MOUSE_LEFT)
2350 	    && !((mod_mask & MOD_MASK_ALT)
2351 		&& !mouse_model_popup()
2352 		&& which_button == MOUSE_RIGHT)
2353 	    )
2354 	return FALSE;
2355 
2356     /*
2357      * If the button press was used as the movement command for an operator
2358      * (eg "d<MOUSE>"), or it is the middle button that is held down, ignore
2359      * drag/release events.
2360      */
2361     if (!is_click && which_button == MOUSE_MIDDLE)
2362 	return FALSE;
2363 
2364     if (oap != NULL)
2365 	regname = oap->regname;
2366     else
2367 	regname = 0;
2368 
2369     /*
2370      * Middle mouse button does a 'put' of the selected text
2371      */
2372     if (which_button == MOUSE_MIDDLE)
2373     {
2374 	if (State == NORMAL)
2375 	{
2376 	    /*
2377 	     * If an operator was pending, we don't know what the user wanted
2378 	     * to do. Go back to normal mode: Clear the operator and beep().
2379 	     */
2380 	    if (oap != NULL && oap->op_type != OP_NOP)
2381 	    {
2382 		clearopbeep(oap);
2383 		return FALSE;
2384 	    }
2385 
2386 #ifdef FEAT_VISUAL
2387 	    /*
2388 	     * If visual was active, yank the highlighted text and put it
2389 	     * before the mouse pointer position.
2390 	     */
2391 	    if (VIsual_active)
2392 	    {
2393 		stuffcharReadbuff('y');
2394 		stuffcharReadbuff(K_MIDDLEMOUSE);
2395 		do_always = TRUE;	/* ignore 'mouse' setting next time */
2396 		return FALSE;
2397 	    }
2398 #endif
2399 	    /*
2400 	     * The rest is below jump_to_mouse()
2401 	     */
2402 	}
2403 
2404 	else if ((State & INSERT) == 0)
2405 	    return FALSE;
2406 
2407 	/*
2408 	 * Middle click in insert mode doesn't move the mouse, just insert the
2409 	 * contents of a register.  '.' register is special, can't insert that
2410 	 * with do_put().
2411 	 * Also paste at the cursor if the current mode isn't in 'mouse' (only
2412 	 * happens for the GUI).
2413 	 */
2414 	if ((State & INSERT) || !mouse_has(MOUSE_NORMAL))
2415 	{
2416 	    if (regname == '.')
2417 		insert_reg(regname, TRUE);
2418 	    else
2419 	    {
2420 #ifdef FEAT_CLIPBOARD
2421 		if (clip_star.available && regname == 0)
2422 		    regname = '*';
2423 #endif
2424 		if ((State & REPLACE_FLAG) && !yank_register_mline(regname))
2425 		    insert_reg(regname, TRUE);
2426 		else
2427 		{
2428 		    do_put(regname, BACKWARD, 1L, fixindent | PUT_CURSEND);
2429 
2430 		    /* Repeat it with CTRL-R CTRL-O r or CTRL-R CTRL-P r */
2431 		    AppendCharToRedobuff(Ctrl_R);
2432 		    AppendCharToRedobuff(fixindent ? Ctrl_P : Ctrl_O);
2433 		    AppendCharToRedobuff(regname == 0 ? '"' : regname);
2434 		}
2435 	    }
2436 	    return FALSE;
2437 	}
2438     }
2439 
2440     /* When dragging or button-up stay in the same window. */
2441     if (!is_click)
2442 	jump_flags |= MOUSE_FOCUS | MOUSE_DID_MOVE;
2443 
2444     start_visual.lnum = 0;
2445 
2446 #ifdef FEAT_WINDOWS
2447     /* Check for clicking in the tab page line. */
2448     if (mouse_row == 0 && firstwin->w_winrow > 0)
2449     {
2450 	got_click = FALSE;	/* ignore mouse-up and drag events */
2451 
2452 	/* click in a tab selects that tab page */
2453 	if (is_click
2454 # ifdef FEAT_CMDWIN
2455 		&& cmdwin_type == 0
2456 # endif
2457 		&& mouse_col < Columns)
2458 	{
2459 	    c1 = TabPageIdxs[mouse_col];
2460 	    if (c1 >= 0)
2461 	    {
2462 		if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2463 		{
2464 		    /* double click opens new page */
2465 		    end_visual_mode();
2466 		    tabpage_new();
2467 		    tabpage_move(c1 == 0 ? 9999 : c1 - 1);
2468 		}
2469 		else
2470 		{
2471 		    /* Go to specified tab page, or next one if not clicking
2472 		     * on a label. */
2473 		    goto_tabpage(c1);
2474 
2475 		    /* It's like clicking on the status line of a window. */
2476 		    if (curwin != old_curwin)
2477 			end_visual_mode();
2478 		}
2479 	    }
2480 	    else if (c1 < 0)
2481 	    {
2482 		tabpage_T	*tp;
2483 
2484 		/* Close the current or specified tab page. */
2485 		if (c1 == -999)
2486 		    tp = curtab;
2487 		else
2488 		    tp = find_tabpage(-c1);
2489 		if (tp == curtab)
2490 		{
2491 		    if (first_tabpage->tp_next != NULL)
2492 			tabpage_close(FALSE);
2493 		}
2494 		else if (tp != NULL)
2495 		    tabpage_close_other(tp, FALSE);
2496 	    }
2497 	}
2498 	return TRUE;
2499     }
2500 #endif
2501 
2502     /*
2503      * When 'mousemodel' is "popup" or "popup_setpos", translate mouse events:
2504      * right button up   -> pop-up menu
2505      * shift-left button -> right button
2506      * alt-left button   -> alt-right button
2507      */
2508     if (mouse_model_popup())
2509     {
2510 	if (which_button == MOUSE_RIGHT
2511 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2512 	{
2513 	    /*
2514 	     * NOTE: Ignore right button down and drag mouse events.
2515 	     * Windows only shows the popup menu on the button up event.
2516 	     */
2517 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_PHOTON)
2518 	    if (!is_click)
2519 		return FALSE;
2520 #endif
2521 #if defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN)
2522 	    if (is_click || is_drag)
2523 		return FALSE;
2524 #endif
2525 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) \
2526 	    || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \
2527 	    || defined(FEAT_GUI_MAC) || defined(FEAT_GUI_PHOTON)
2528 	    if (gui.in_use)
2529 	    {
2530 		jump_flags = 0;
2531 		if (STRCMP(p_mousem, "popup_setpos") == 0)
2532 		{
2533 		    /* First set the cursor position before showing the popup
2534 		     * menu. */
2535 #ifdef FEAT_VISUAL
2536 		    if (VIsual_active)
2537 		    {
2538 			pos_T    m_pos;
2539 
2540 			/*
2541 			 * set MOUSE_MAY_STOP_VIS if we are outside the
2542 			 * selection or the current window (might have false
2543 			 * negative here)
2544 			 */
2545 			if (mouse_row < W_WINROW(curwin)
2546 			     || mouse_row
2547 				      > (W_WINROW(curwin) + curwin->w_height))
2548 			    jump_flags = MOUSE_MAY_STOP_VIS;
2549 			else if (get_fpos_of_mouse(&m_pos) != IN_BUFFER)
2550 			    jump_flags = MOUSE_MAY_STOP_VIS;
2551 			else
2552 			{
2553 			    if ((lt(curwin->w_cursor, VIsual)
2554 					&& (lt(m_pos, curwin->w_cursor)
2555 					    || lt(VIsual, m_pos)))
2556 				    || (lt(VIsual, curwin->w_cursor)
2557 					&& (lt(m_pos, VIsual)
2558 					    || lt(curwin->w_cursor, m_pos))))
2559 			    {
2560 				jump_flags = MOUSE_MAY_STOP_VIS;
2561 			    }
2562 			    else if (VIsual_mode == Ctrl_V)
2563 			    {
2564 				getvcols(curwin, &curwin->w_cursor, &VIsual,
2565 							 &leftcol, &rightcol);
2566 				getvcol(curwin, &m_pos, NULL, &m_pos.col, NULL);
2567 				if (m_pos.col < leftcol || m_pos.col > rightcol)
2568 				    jump_flags = MOUSE_MAY_STOP_VIS;
2569 			    }
2570 			}
2571 		    }
2572 		    else
2573 			jump_flags = MOUSE_MAY_STOP_VIS;
2574 #endif
2575 		}
2576 		if (jump_flags)
2577 		{
2578 		    jump_flags = jump_to_mouse(jump_flags, NULL, which_button);
2579 		    update_curbuf(
2580 #ifdef FEAT_VISUAL
2581 			    VIsual_active ? INVERTED :
2582 #endif
2583 			    VALID);
2584 		    setcursor();
2585 		    out_flush();    /* Update before showing popup menu */
2586 		}
2587 # ifdef FEAT_MENU
2588 		gui_show_popupmenu();
2589 # endif
2590 		return (jump_flags & CURSOR_MOVED) != 0;
2591 	    }
2592 	    else
2593 		return FALSE;
2594 #else
2595 	    return FALSE;
2596 #endif
2597 	}
2598 	if (which_button == MOUSE_LEFT
2599 				&& (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT)))
2600 	{
2601 	    which_button = MOUSE_RIGHT;
2602 	    mod_mask &= ~MOD_MASK_SHIFT;
2603 	}
2604     }
2605 
2606 #ifdef FEAT_VISUAL
2607     if ((State & (NORMAL | INSERT))
2608 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2609     {
2610 	if (which_button == MOUSE_LEFT)
2611 	{
2612 	    if (is_click)
2613 	    {
2614 		/* stop Visual mode for a left click in a window, but not when
2615 		 * on a status line */
2616 		if (VIsual_active)
2617 		    jump_flags |= MOUSE_MAY_STOP_VIS;
2618 	    }
2619 	    else if (mouse_has(MOUSE_VISUAL))
2620 		jump_flags |= MOUSE_MAY_VIS;
2621 	}
2622 	else if (which_button == MOUSE_RIGHT)
2623 	{
2624 	    if (is_click && VIsual_active)
2625 	    {
2626 		/*
2627 		 * Remember the start and end of visual before moving the
2628 		 * cursor.
2629 		 */
2630 		if (lt(curwin->w_cursor, VIsual))
2631 		{
2632 		    start_visual = curwin->w_cursor;
2633 		    end_visual = VIsual;
2634 		}
2635 		else
2636 		{
2637 		    start_visual = VIsual;
2638 		    end_visual = curwin->w_cursor;
2639 		}
2640 	    }
2641 	    jump_flags |= MOUSE_FOCUS;
2642 	    if (mouse_has(MOUSE_VISUAL))
2643 		jump_flags |= MOUSE_MAY_VIS;
2644 	}
2645     }
2646 #endif
2647 
2648     /*
2649      * If an operator is pending, ignore all drags and releases until the
2650      * next mouse click.
2651      */
2652     if (!is_drag && oap != NULL && oap->op_type != OP_NOP)
2653     {
2654 	got_click = FALSE;
2655 	oap->motion_type = MCHAR;
2656     }
2657 
2658     /* When releasing the button let jump_to_mouse() know. */
2659     if (!is_click && !is_drag)
2660 	jump_flags |= MOUSE_RELEASED;
2661 
2662     /*
2663      * JUMP!
2664      */
2665     jump_flags = jump_to_mouse(jump_flags,
2666 			oap == NULL ? NULL : &(oap->inclusive), which_button);
2667     moved = (jump_flags & CURSOR_MOVED);
2668     in_status_line = (jump_flags & IN_STATUS_LINE);
2669 #ifdef FEAT_VERTSPLIT
2670     in_sep_line = (jump_flags & IN_SEP_LINE);
2671 #endif
2672 
2673 #ifdef FEAT_NETBEANS_INTG
2674     if (usingNetbeans && isNetbeansBuffer(curbuf)
2675 			    && !(jump_flags & (IN_STATUS_LINE | IN_SEP_LINE)))
2676     {
2677 	int key = KEY2TERMCAP1(c);
2678 
2679 	if (key == (int)KE_LEFTRELEASE || key == (int)KE_MIDDLERELEASE
2680 					       || key == (int)KE_RIGHTRELEASE)
2681 	    netbeans_button_release(which_button);
2682     }
2683 #endif
2684 
2685     /* When jumping to another window, clear a pending operator.  That's a bit
2686      * friendlier than beeping and not jumping to that window. */
2687     if (curwin != old_curwin && oap != NULL && oap->op_type != OP_NOP)
2688 	clearop(oap);
2689 
2690 #ifdef FEAT_FOLDING
2691     if (mod_mask == 0
2692 	    && !is_drag
2693 	    && (jump_flags & (MOUSE_FOLD_CLOSE | MOUSE_FOLD_OPEN))
2694 	    && which_button == MOUSE_LEFT)
2695     {
2696 	/* open or close a fold at this line */
2697 	if (jump_flags & MOUSE_FOLD_OPEN)
2698 	    openFold(curwin->w_cursor.lnum, 1L);
2699 	else
2700 	    closeFold(curwin->w_cursor.lnum, 1L);
2701 	/* don't move the cursor if still in the same window */
2702 	if (curwin == old_curwin)
2703 	    curwin->w_cursor = save_cursor;
2704     }
2705 #endif
2706 
2707 #if defined(FEAT_CLIPBOARD) && defined(FEAT_CMDWIN)
2708     if ((jump_flags & IN_OTHER_WIN) && !VIsual_active && clip_star.available)
2709     {
2710 	clip_modeless(which_button, is_click, is_drag);
2711 	return FALSE;
2712     }
2713 #endif
2714 
2715 #ifdef FEAT_VISUAL
2716     /* Set global flag that we are extending the Visual area with mouse
2717      * dragging; temporarily mimimize 'scrolloff'. */
2718     if (VIsual_active && is_drag && p_so)
2719     {
2720 	/* In the very first line, allow scrolling one line */
2721 	if (mouse_row == 0)
2722 	    mouse_dragging = 2;
2723 	else
2724 	    mouse_dragging = 1;
2725     }
2726 
2727     /* When dragging the mouse above the window, scroll down. */
2728     if (is_drag && mouse_row < 0 && !in_status_line)
2729     {
2730 	scroll_redraw(FALSE, 1L);
2731 	mouse_row = 0;
2732     }
2733 
2734     if (start_visual.lnum)		/* right click in visual mode */
2735     {
2736        /* When ALT is pressed make Visual mode blockwise. */
2737        if (mod_mask & MOD_MASK_ALT)
2738 	   VIsual_mode = Ctrl_V;
2739 
2740 	/*
2741 	 * In Visual-block mode, divide the area in four, pick up the corner
2742 	 * that is in the quarter that the cursor is in.
2743 	 */
2744 	if (VIsual_mode == Ctrl_V)
2745 	{
2746 	    getvcols(curwin, &start_visual, &end_visual, &leftcol, &rightcol);
2747 	    if (curwin->w_curswant > (leftcol + rightcol) / 2)
2748 		end_visual.col = leftcol;
2749 	    else
2750 		end_visual.col = rightcol;
2751 	    if (curwin->w_cursor.lnum <
2752 				    (start_visual.lnum + end_visual.lnum) / 2)
2753 		end_visual.lnum = end_visual.lnum;
2754 	    else
2755 		end_visual.lnum = start_visual.lnum;
2756 
2757 	    /* move VIsual to the right column */
2758 	    start_visual = curwin->w_cursor;	    /* save the cursor pos */
2759 	    curwin->w_cursor = end_visual;
2760 	    coladvance(end_visual.col);
2761 	    VIsual = curwin->w_cursor;
2762 	    curwin->w_cursor = start_visual;	    /* restore the cursor */
2763 	}
2764 	else
2765 	{
2766 	    /*
2767 	     * If the click is before the start of visual, change the start.
2768 	     * If the click is after the end of visual, change the end.  If
2769 	     * the click is inside the visual, change the closest side.
2770 	     */
2771 	    if (lt(curwin->w_cursor, start_visual))
2772 		VIsual = end_visual;
2773 	    else if (lt(end_visual, curwin->w_cursor))
2774 		VIsual = start_visual;
2775 	    else
2776 	    {
2777 		/* In the same line, compare column number */
2778 		if (end_visual.lnum == start_visual.lnum)
2779 		{
2780 		    if (curwin->w_cursor.col - start_visual.col >
2781 				    end_visual.col - curwin->w_cursor.col)
2782 			VIsual = start_visual;
2783 		    else
2784 			VIsual = end_visual;
2785 		}
2786 
2787 		/* In different lines, compare line number */
2788 		else
2789 		{
2790 		    diff = (curwin->w_cursor.lnum - start_visual.lnum) -
2791 				(end_visual.lnum - curwin->w_cursor.lnum);
2792 
2793 		    if (diff > 0)		/* closest to end */
2794 			VIsual = start_visual;
2795 		    else if (diff < 0)	/* closest to start */
2796 			VIsual = end_visual;
2797 		    else			/* in the middle line */
2798 		    {
2799 			if (curwin->w_cursor.col <
2800 					(start_visual.col + end_visual.col) / 2)
2801 			    VIsual = end_visual;
2802 			else
2803 			    VIsual = start_visual;
2804 		    }
2805 		}
2806 	    }
2807 	}
2808     }
2809     /*
2810      * If Visual mode started in insert mode, execute "CTRL-O"
2811      */
2812     else if ((State & INSERT) && VIsual_active)
2813 	stuffcharReadbuff(Ctrl_O);
2814 #endif
2815 
2816     /*
2817      * Middle mouse click: Put text before cursor.
2818      */
2819     if (which_button == MOUSE_MIDDLE)
2820     {
2821 #ifdef FEAT_CLIPBOARD
2822 	if (clip_star.available && regname == 0)
2823 	    regname = '*';
2824 #endif
2825 	if (yank_register_mline(regname))
2826 	{
2827 	    if (mouse_past_bottom)
2828 		dir = FORWARD;
2829 	}
2830 	else if (mouse_past_eol)
2831 	    dir = FORWARD;
2832 
2833 	if (fixindent)
2834 	{
2835 	    c1 = (dir == BACKWARD) ? '[' : ']';
2836 	    c2 = 'p';
2837 	}
2838 	else
2839 	{
2840 	    c1 = (dir == FORWARD) ? 'p' : 'P';
2841 	    c2 = NUL;
2842 	}
2843 	prep_redo(regname, count, NUL, c1, NUL, c2, NUL);
2844 
2845 	/*
2846 	 * Remember where the paste started, so in edit() Insstart can be set
2847 	 * to this position
2848 	 */
2849 	if (restart_edit != 0)
2850 	    where_paste_started = curwin->w_cursor;
2851 	do_put(regname, dir, count, fixindent | PUT_CURSEND);
2852     }
2853 
2854 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2855     /*
2856      * Ctrl-Mouse click or double click in a quickfix window jumps to the
2857      * error under the mouse pointer.
2858      */
2859     else if (((mod_mask & MOD_MASK_CTRL)
2860 		|| (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2861 	    && bt_quickfix(curbuf))
2862     {
2863 	if (State & INSERT)
2864 	    stuffcharReadbuff(Ctrl_O);
2865 	if (curwin->w_llist_ref == NULL)	/* quickfix window */
2866 	    stuffReadbuff((char_u *)":.cc\n");
2867 	else					/* location list window */
2868 	    stuffReadbuff((char_u *)":.ll\n");
2869 	got_click = FALSE;		/* ignore drag&release now */
2870     }
2871 #endif
2872 
2873     /*
2874      * Ctrl-Mouse click (or double click in a help window) jumps to the tag
2875      * under the mouse pointer.
2876      */
2877     else if ((mod_mask & MOD_MASK_CTRL) || (curbuf->b_help
2878 		     && (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK))
2879     {
2880 	if (State & INSERT)
2881 	    stuffcharReadbuff(Ctrl_O);
2882 	stuffcharReadbuff(Ctrl_RSB);
2883 	got_click = FALSE;		/* ignore drag&release now */
2884     }
2885 
2886     /*
2887      * Shift-Mouse click searches for the next occurrence of the word under
2888      * the mouse pointer
2889      */
2890     else if ((mod_mask & MOD_MASK_SHIFT))
2891     {
2892 	if (State & INSERT
2893 #ifdef FEAT_VISUAL
2894 		|| (VIsual_active && VIsual_select)
2895 #endif
2896 		)
2897 	    stuffcharReadbuff(Ctrl_O);
2898 	if (which_button == MOUSE_LEFT)
2899 	    stuffcharReadbuff('*');
2900 	else	/* MOUSE_RIGHT */
2901 	    stuffcharReadbuff('#');
2902     }
2903 
2904     /* Handle double clicks, unless on status line */
2905     else if (in_status_line)
2906     {
2907 #ifdef FEAT_MOUSESHAPE
2908 	if ((is_drag || is_click) && !drag_status_line)
2909 	{
2910 	    drag_status_line = TRUE;
2911 	    update_mouseshape(-1);
2912 	}
2913 #endif
2914     }
2915 #ifdef FEAT_VERTSPLIT
2916     else if (in_sep_line)
2917     {
2918 # ifdef FEAT_MOUSESHAPE
2919 	if ((is_drag || is_click) && !drag_sep_line)
2920 	{
2921 	    drag_sep_line = TRUE;
2922 	    update_mouseshape(-1);
2923 	}
2924 # endif
2925     }
2926 #endif
2927 #ifdef FEAT_VISUAL
2928     else if ((mod_mask & MOD_MASK_MULTI_CLICK) && (State & (NORMAL | INSERT))
2929 	     && mouse_has(MOUSE_VISUAL))
2930     {
2931 	if (is_click || !VIsual_active)
2932 	{
2933 	    if (VIsual_active)
2934 		orig_cursor = VIsual;
2935 	    else
2936 	    {
2937 		check_visual_highlight();
2938 		VIsual = curwin->w_cursor;
2939 		orig_cursor = VIsual;
2940 		VIsual_active = TRUE;
2941 		VIsual_reselect = TRUE;
2942 		/* start Select mode if 'selectmode' contains "mouse" */
2943 		may_start_select('o');
2944 		setmouse();
2945 	    }
2946 	    if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2947 	    {
2948 		/* Double click with ALT pressed makes it blockwise. */
2949 		if (mod_mask & MOD_MASK_ALT)
2950 		    VIsual_mode = Ctrl_V;
2951 		else
2952 		    VIsual_mode = 'v';
2953 	    }
2954 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_3CLICK)
2955 		VIsual_mode = 'V';
2956 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_4CLICK)
2957 		VIsual_mode = Ctrl_V;
2958 #ifdef FEAT_CLIPBOARD
2959 	    /* Make sure the clipboard gets updated.  Needed because start and
2960 	     * end may still be the same, and the selection needs to be owned */
2961 	    clip_star.vmode = NUL;
2962 #endif
2963 	}
2964 	/*
2965 	 * A double click selects a word or a block.
2966 	 */
2967 	if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2968 	{
2969 	    pos_T	*pos = NULL;
2970 	    int		gc;
2971 
2972 	    if (is_click)
2973 	    {
2974 		/* If the character under the cursor (skipping white space) is
2975 		 * not a word character, try finding a match and select a (),
2976 		 * {}, [], #if/#endif, etc. block. */
2977 		end_visual = curwin->w_cursor;
2978 		while (gc = gchar_pos(&end_visual), vim_iswhite(gc))
2979 		    inc(&end_visual);
2980 		if (oap != NULL)
2981 		    oap->motion_type = MCHAR;
2982 		if (oap != NULL
2983 			&& VIsual_mode == 'v'
2984 			&& !vim_iswordc(gchar_pos(&end_visual))
2985 			&& equalpos(curwin->w_cursor, VIsual)
2986 			&& (pos = findmatch(oap, NUL)) != NULL)
2987 		{
2988 		    curwin->w_cursor = *pos;
2989 		    if (oap->motion_type == MLINE)
2990 			VIsual_mode = 'V';
2991 		    else if (*p_sel == 'e')
2992 		    {
2993 			if (lt(curwin->w_cursor, VIsual))
2994 			    ++VIsual.col;
2995 			else
2996 			    ++curwin->w_cursor.col;
2997 		    }
2998 		}
2999 	    }
3000 
3001 	    if (pos == NULL && (is_click || is_drag))
3002 	    {
3003 		/* When not found a match or when dragging: extend to include
3004 		 * a word. */
3005 		if (lt(curwin->w_cursor, orig_cursor))
3006 		{
3007 		    find_start_of_word(&curwin->w_cursor);
3008 		    find_end_of_word(&VIsual);
3009 		}
3010 		else
3011 		{
3012 		    find_start_of_word(&VIsual);
3013 		    if (*p_sel == 'e' && *ml_get_cursor() != NUL)
3014 #ifdef FEAT_MBYTE
3015 			curwin->w_cursor.col +=
3016 					 (*mb_ptr2len)(ml_get_cursor());
3017 #else
3018 			++curwin->w_cursor.col;
3019 #endif
3020 		    find_end_of_word(&curwin->w_cursor);
3021 		}
3022 	    }
3023 	    curwin->w_set_curswant = TRUE;
3024 	}
3025 	if (is_click)
3026 	    redraw_curbuf_later(INVERTED);	/* update the inversion */
3027     }
3028     else if (VIsual_active && !old_active)
3029     {
3030 	if (mod_mask & MOD_MASK_ALT)
3031 	    VIsual_mode = Ctrl_V;
3032 	else
3033 	    VIsual_mode = 'v';
3034     }
3035 
3036     /* If Visual mode changed show it later. */
3037     if ((!VIsual_active && old_active && mode_displayed)
3038 	    || (VIsual_active && p_smd && msg_silent == 0
3039 				 && (!old_active || VIsual_mode != old_mode)))
3040 	redraw_cmdline = TRUE;
3041 #endif
3042 
3043     return moved;
3044 }
3045 
3046 #ifdef FEAT_VISUAL
3047 /*
3048  * Move "pos" back to the start of the word it's in.
3049  */
3050     static void
3051 find_start_of_word(pos)
3052     pos_T	*pos;
3053 {
3054     char_u	*line;
3055     int		cclass;
3056     int		col;
3057 
3058     line = ml_get(pos->lnum);
3059     cclass = get_mouse_class(line + pos->col);
3060 
3061     while (pos->col > 0)
3062     {
3063 	col = pos->col - 1;
3064 #ifdef FEAT_MBYTE
3065 	col -= (*mb_head_off)(line, line + col);
3066 #endif
3067 	if (get_mouse_class(line + col) != cclass)
3068 	    break;
3069 	pos->col = col;
3070     }
3071 }
3072 
3073 /*
3074  * Move "pos" forward to the end of the word it's in.
3075  * When 'selection' is "exclusive", the position is just after the word.
3076  */
3077     static void
3078 find_end_of_word(pos)
3079     pos_T	*pos;
3080 {
3081     char_u	*line;
3082     int		cclass;
3083     int		col;
3084 
3085     line = ml_get(pos->lnum);
3086     if (*p_sel == 'e' && pos->col > 0)
3087     {
3088 	--pos->col;
3089 #ifdef FEAT_MBYTE
3090 	pos->col -= (*mb_head_off)(line, line + pos->col);
3091 #endif
3092     }
3093     cclass = get_mouse_class(line + pos->col);
3094     while (line[pos->col] != NUL)
3095     {
3096 #ifdef FEAT_MBYTE
3097 	col = pos->col + (*mb_ptr2len)(line + pos->col);
3098 #else
3099 	col = pos->col + 1;
3100 #endif
3101 	if (get_mouse_class(line + col) != cclass)
3102 	{
3103 	    if (*p_sel == 'e')
3104 		pos->col = col;
3105 	    break;
3106 	}
3107 	pos->col = col;
3108     }
3109 }
3110 
3111 /*
3112  * Get class of a character for selection: same class means same word.
3113  * 0: blank
3114  * 1: punctuation groups
3115  * 2: normal word character
3116  * >2: multi-byte word character.
3117  */
3118     static int
3119 get_mouse_class(p)
3120     char_u	*p;
3121 {
3122     int		c;
3123 
3124 #ifdef FEAT_MBYTE
3125     if (has_mbyte && MB_BYTE2LEN(p[0]) > 1)
3126 	return mb_get_class(p);
3127 #endif
3128 
3129     c = *p;
3130     if (c == ' ' || c == '\t')
3131 	return 0;
3132 
3133     if (vim_iswordc(c))
3134 	return 2;
3135 
3136     /*
3137      * There are a few special cases where we want certain combinations of
3138      * characters to be considered as a single word.  These are things like
3139      * "->", "/ *", "*=", "+=", "&=", "<=", ">=", "!=" etc.  Otherwise, each
3140      * character is in it's own class.
3141      */
3142     if (c != NUL && vim_strchr((char_u *)"-+*/%<>&|^!=", c) != NULL)
3143 	return 1;
3144     return c;
3145 }
3146 #endif /* FEAT_VISUAL */
3147 #endif /* FEAT_MOUSE */
3148 
3149 #if defined(FEAT_VISUAL) || defined(PROTO)
3150 /*
3151  * Check if  highlighting for visual mode is possible, give a warning message
3152  * if not.
3153  */
3154     void
3155 check_visual_highlight()
3156 {
3157     static int	    did_check = FALSE;
3158 
3159     if (full_screen)
3160     {
3161 	if (!did_check && hl_attr(HLF_V) == 0)
3162 	    MSG(_("Warning: terminal cannot highlight"));
3163 	did_check = TRUE;
3164     }
3165 }
3166 
3167 /*
3168  * End Visual mode.
3169  * This function should ALWAYS be called to end Visual mode, except from
3170  * do_pending_operator().
3171  */
3172     void
3173 end_visual_mode()
3174 {
3175 #ifdef FEAT_CLIPBOARD
3176     /*
3177      * If we are using the clipboard, then remember what was selected in case
3178      * we need to paste it somewhere while we still own the selection.
3179      * Only do this when the clipboard is already owned.  Don't want to grab
3180      * the selection when hitting ESC.
3181      */
3182     if (clip_star.available && clip_star.owned)
3183 	clip_auto_select();
3184 #endif
3185 
3186     VIsual_active = FALSE;
3187 #ifdef FEAT_MOUSE
3188     setmouse();
3189     mouse_dragging = 0;
3190 #endif
3191 
3192     /* Save the current VIsual area for '< and '> marks, and "gv" */
3193     curbuf->b_visual.vi_mode = VIsual_mode;
3194     curbuf->b_visual.vi_start = VIsual;
3195     curbuf->b_visual.vi_end = curwin->w_cursor;
3196     curbuf->b_visual.vi_curswant = curwin->w_curswant;
3197 #ifdef FEAT_EVAL
3198     curbuf->b_visual_mode_eval = VIsual_mode;
3199 #endif
3200 #ifdef FEAT_VIRTUALEDIT
3201     if (!virtual_active())
3202 	curwin->w_cursor.coladd = 0;
3203 #endif
3204 
3205     if (mode_displayed)
3206 	clear_cmdline = TRUE;		/* unshow visual mode later */
3207 #ifdef FEAT_CMDL_INFO
3208     else
3209 	clear_showcmd();
3210 #endif
3211 
3212     /* Don't leave the cursor past the end of the line */
3213     if (curwin->w_cursor.col > 0 && *ml_get_cursor() == NUL)
3214 	--curwin->w_cursor.col;
3215 }
3216 
3217 /*
3218  * Reset VIsual_active and VIsual_reselect.
3219  */
3220     void
3221 reset_VIsual_and_resel()
3222 {
3223     if (VIsual_active)
3224     {
3225 	end_visual_mode();
3226 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3227     }
3228     VIsual_reselect = FALSE;
3229 }
3230 
3231 /*
3232  * Reset VIsual_active and VIsual_reselect if it's set.
3233  */
3234     void
3235 reset_VIsual()
3236 {
3237     if (VIsual_active)
3238     {
3239 	end_visual_mode();
3240 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3241 	VIsual_reselect = FALSE;
3242     }
3243 }
3244 #endif /* FEAT_VISUAL */
3245 
3246 #if defined(FEAT_BEVAL)
3247 static int find_is_eval_item __ARGS((char_u *ptr, int *colp, int *nbp, int dir));
3248 
3249 /*
3250  * Check for a balloon-eval special item to include when searching for an
3251  * identifier.  When "dir" is BACKWARD "ptr[-1]" must be valid!
3252  * Returns TRUE if the character at "*ptr" should be included.
3253  * "dir" is FORWARD or BACKWARD, the direction of searching.
3254  * "*colp" is in/decremented if "ptr[-dir]" should also be included.
3255  * "bnp" points to a counter for square brackets.
3256  */
3257     static int
3258 find_is_eval_item(ptr, colp, bnp, dir)
3259     char_u	*ptr;
3260     int		*colp;
3261     int		*bnp;
3262     int		dir;
3263 {
3264     /* Accept everything inside []. */
3265     if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD))
3266 	++*bnp;
3267     if (*bnp > 0)
3268     {
3269 	if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD))
3270 	    --*bnp;
3271 	return TRUE;
3272     }
3273 
3274     /* skip over "s.var" */
3275     if (*ptr == '.')
3276 	return TRUE;
3277 
3278     /* two-character item: s->var */
3279     if (ptr[dir == BACKWARD ? 0 : 1] == '>'
3280 	    && ptr[dir == BACKWARD ? -1 : 0] == '-')
3281     {
3282 	*colp += dir;
3283 	return TRUE;
3284     }
3285     return FALSE;
3286 }
3287 #endif
3288 
3289 /*
3290  * Find the identifier under or to the right of the cursor.
3291  * "find_type" can have one of three values:
3292  * FIND_IDENT:   find an identifier (keyword)
3293  * FIND_STRING:  find any non-white string
3294  * FIND_IDENT + FIND_STRING: find any non-white string, identifier preferred.
3295  * FIND_EVAL:	 find text useful for C program debugging
3296  *
3297  * There are three steps:
3298  * 1. Search forward for the start of an identifier/string.  Doesn't move if
3299  *    already on one.
3300  * 2. Search backward for the start of this identifier/string.
3301  *    This doesn't match the real Vi but I like it a little better and it
3302  *    shouldn't bother anyone.
3303  * 3. Search forward to the end of this identifier/string.
3304  *    When FIND_IDENT isn't defined, we backup until a blank.
3305  *
3306  * Returns the length of the string, or zero if no string is found.
3307  * If a string is found, a pointer to the string is put in "*string".  This
3308  * string is not always NUL terminated.
3309  */
3310     int
3311 find_ident_under_cursor(string, find_type)
3312     char_u	**string;
3313     int		find_type;
3314 {
3315     return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
3316 				     curwin->w_cursor.col, string, find_type);
3317 }
3318 
3319 /*
3320  * Like find_ident_under_cursor(), but for any window and any position.
3321  * However: Uses 'iskeyword' from the current window!.
3322  */
3323     int
3324 find_ident_at_pos(wp, lnum, startcol, string, find_type)
3325     win_T	*wp;
3326     linenr_T	lnum;
3327     colnr_T	startcol;
3328     char_u	**string;
3329     int		find_type;
3330 {
3331     char_u	*ptr;
3332     int		col = 0;	    /* init to shut up GCC */
3333     int		i;
3334 #ifdef FEAT_MBYTE
3335     int		this_class = 0;
3336     int		prev_class;
3337     int		prevcol;
3338 #endif
3339 #if defined(FEAT_BEVAL)
3340     int		bn = 0;	    /* bracket nesting */
3341 #endif
3342 
3343     /*
3344      * if i == 0: try to find an identifier
3345      * if i == 1: try to find any non-white string
3346      */
3347     ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
3348     for (i = (find_type & FIND_IDENT) ? 0 : 1;	i < 2; ++i)
3349     {
3350 	/*
3351 	 * 1. skip to start of identifier/string
3352 	 */
3353 	col = startcol;
3354 #ifdef FEAT_MBYTE
3355 	if (has_mbyte)
3356 	{
3357 	    while (ptr[col] != NUL)
3358 	    {
3359 # if defined(FEAT_BEVAL)
3360 		/* Stop at a ']' to evaluate "a[x]". */
3361 		if ((find_type & FIND_EVAL) && ptr[col] == ']')
3362 		    break;
3363 # endif
3364 		this_class = mb_get_class(ptr + col);
3365 		if (this_class != 0 && (i == 1 || this_class != 1))
3366 		    break;
3367 		col += (*mb_ptr2len)(ptr + col);
3368 	    }
3369 	}
3370 	else
3371 #endif
3372 	    while (ptr[col] != NUL
3373 		    && (i == 0 ? !vim_iswordc(ptr[col]) : vim_iswhite(ptr[col]))
3374 # if defined(FEAT_BEVAL)
3375 		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
3376 # endif
3377 		    )
3378 		++col;
3379 
3380 #if defined(FEAT_BEVAL)
3381 	/* When starting on a ']' count it, so that we include the '['. */
3382 	bn = ptr[col] == ']';
3383 #endif
3384 
3385 	/*
3386 	 * 2. Back up to start of identifier/string.
3387 	 */
3388 #ifdef FEAT_MBYTE
3389 	if (has_mbyte)
3390 	{
3391 	    /* Remember class of character under cursor. */
3392 # if defined(FEAT_BEVAL)
3393 	    if ((find_type & FIND_EVAL) && ptr[col] == ']')
3394 		this_class = mb_get_class((char_u *)"a");
3395 	    else
3396 # endif
3397 		this_class = mb_get_class(ptr + col);
3398 	    while (col > 0 && this_class != 0)
3399 	    {
3400 		prevcol = col - 1 - (*mb_head_off)(ptr, ptr + col - 1);
3401 		prev_class = mb_get_class(ptr + prevcol);
3402 		if (this_class != prev_class
3403 			&& (i == 0
3404 			    || prev_class == 0
3405 			    || (find_type & FIND_IDENT))
3406 # if defined(FEAT_BEVAL)
3407 			&& (!(find_type & FIND_EVAL)
3408 			    || prevcol == 0
3409 			    || !find_is_eval_item(ptr + prevcol, &prevcol,
3410 							       &bn, BACKWARD))
3411 # endif
3412 			)
3413 		    break;
3414 		col = prevcol;
3415 	    }
3416 
3417 	    /* If we don't want just any old string, or we've found an
3418 	     * identifier, stop searching. */
3419 	    if (this_class > 2)
3420 		this_class = 2;
3421 	    if (!(find_type & FIND_STRING) || this_class == 2)
3422 		break;
3423 	}
3424 	else
3425 #endif
3426 	{
3427 	    while (col > 0
3428 		    && ((i == 0
3429 			    ? vim_iswordc(ptr[col - 1])
3430 			    : (!vim_iswhite(ptr[col - 1])
3431 				&& (!(find_type & FIND_IDENT)
3432 				    || !vim_iswordc(ptr[col - 1]))))
3433 #if defined(FEAT_BEVAL)
3434 			|| ((find_type & FIND_EVAL)
3435 			    && col > 1
3436 			    && find_is_eval_item(ptr + col - 1, &col,
3437 							       &bn, BACKWARD))
3438 #endif
3439 			))
3440 		--col;
3441 
3442 	    /* If we don't want just any old string, or we've found an
3443 	     * identifier, stop searching. */
3444 	    if (!(find_type & FIND_STRING) || vim_iswordc(ptr[col]))
3445 		break;
3446 	}
3447     }
3448 
3449     if (ptr[col] == NUL || (i == 0 && (
3450 #ifdef FEAT_MBYTE
3451 		has_mbyte ? this_class != 2 :
3452 #endif
3453 		!vim_iswordc(ptr[col]))))
3454     {
3455 	/*
3456 	 * didn't find an identifier or string
3457 	 */
3458 	if (find_type & FIND_STRING)
3459 	    EMSG(_("E348: No string under cursor"));
3460 	else
3461 	    EMSG(_("E349: No identifier under cursor"));
3462 	return 0;
3463     }
3464     ptr += col;
3465     *string = ptr;
3466 
3467     /*
3468      * 3. Find the end if the identifier/string.
3469      */
3470 #if defined(FEAT_BEVAL)
3471     bn = 0;
3472     startcol -= col;
3473 #endif
3474     col = 0;
3475 #ifdef FEAT_MBYTE
3476     if (has_mbyte)
3477     {
3478 	/* Search for point of changing multibyte character class. */
3479 	this_class = mb_get_class(ptr);
3480 	while (ptr[col] != NUL
3481 		&& ((i == 0 ? mb_get_class(ptr + col) == this_class
3482 			    : mb_get_class(ptr + col) != 0)
3483 # if defined(FEAT_BEVAL)
3484 		    || ((find_type & FIND_EVAL)
3485 			&& col <= (int)startcol
3486 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3487 # endif
3488 		))
3489 	    col += (*mb_ptr2len)(ptr + col);
3490     }
3491     else
3492 #endif
3493 	while ((i == 0 ? vim_iswordc(ptr[col])
3494 		       : (ptr[col] != NUL && !vim_iswhite(ptr[col])))
3495 # if defined(FEAT_BEVAL)
3496 		    || ((find_type & FIND_EVAL)
3497 			&& col <= (int)startcol
3498 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3499 # endif
3500 		)
3501 	{
3502 	    ++col;
3503 	}
3504 
3505     return col;
3506 }
3507 
3508 /*
3509  * Prepare for redo of a normal command.
3510  */
3511     static void
3512 prep_redo_cmd(cap)
3513     cmdarg_T  *cap;
3514 {
3515     prep_redo(cap->oap->regname, cap->count0,
3516 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
3517 }
3518 
3519 /*
3520  * Prepare for redo of any command.
3521  * Note that only the last argument can be a multi-byte char.
3522  */
3523     static void
3524 prep_redo(regname, num, cmd1, cmd2, cmd3, cmd4, cmd5)
3525     int	    regname;
3526     long    num;
3527     int	    cmd1;
3528     int	    cmd2;
3529     int	    cmd3;
3530     int	    cmd4;
3531     int	    cmd5;
3532 {
3533     ResetRedobuff();
3534     if (regname != 0)	/* yank from specified buffer */
3535     {
3536 	AppendCharToRedobuff('"');
3537 	AppendCharToRedobuff(regname);
3538     }
3539     if (num)
3540 	AppendNumberToRedobuff(num);
3541 
3542     if (cmd1 != NUL)
3543 	AppendCharToRedobuff(cmd1);
3544     if (cmd2 != NUL)
3545 	AppendCharToRedobuff(cmd2);
3546     if (cmd3 != NUL)
3547 	AppendCharToRedobuff(cmd3);
3548     if (cmd4 != NUL)
3549 	AppendCharToRedobuff(cmd4);
3550     if (cmd5 != NUL)
3551 	AppendCharToRedobuff(cmd5);
3552 }
3553 
3554 /*
3555  * check for operator active and clear it
3556  *
3557  * return TRUE if operator was active
3558  */
3559     static int
3560 checkclearop(oap)
3561     oparg_T	*oap;
3562 {
3563     if (oap->op_type == OP_NOP)
3564 	return FALSE;
3565     clearopbeep(oap);
3566     return TRUE;
3567 }
3568 
3569 /*
3570  * check for operator or Visual active and clear it
3571  *
3572  * return TRUE if operator was active
3573  */
3574     static int
3575 checkclearopq(oap)
3576     oparg_T	*oap;
3577 {
3578     if (oap->op_type == OP_NOP
3579 #ifdef FEAT_VISUAL
3580 	    && !VIsual_active
3581 #endif
3582 	    )
3583 	return FALSE;
3584     clearopbeep(oap);
3585     return TRUE;
3586 }
3587 
3588     static void
3589 clearop(oap)
3590     oparg_T	*oap;
3591 {
3592     oap->op_type = OP_NOP;
3593     oap->regname = 0;
3594     oap->motion_force = NUL;
3595     oap->use_reg_one = FALSE;
3596 }
3597 
3598     static void
3599 clearopbeep(oap)
3600     oparg_T	*oap;
3601 {
3602     clearop(oap);
3603     beep_flush();
3604 }
3605 
3606 #ifdef FEAT_VISUAL
3607 /*
3608  * Remove the shift modifier from a special key.
3609  */
3610     static void
3611 unshift_special(cap)
3612     cmdarg_T	*cap;
3613 {
3614     switch (cap->cmdchar)
3615     {
3616 	case K_S_RIGHT:	cap->cmdchar = K_RIGHT; break;
3617 	case K_S_LEFT:	cap->cmdchar = K_LEFT; break;
3618 	case K_S_UP:	cap->cmdchar = K_UP; break;
3619 	case K_S_DOWN:	cap->cmdchar = K_DOWN; break;
3620 	case K_S_HOME:	cap->cmdchar = K_HOME; break;
3621 	case K_S_END:	cap->cmdchar = K_END; break;
3622     }
3623     cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
3624 }
3625 #endif
3626 
3627 #if defined(FEAT_CMDL_INFO) || defined(PROTO)
3628 /*
3629  * Routines for displaying a partly typed command
3630  */
3631 
3632 #ifdef FEAT_VISUAL	/* need room for size of Visual area */
3633 # define SHOWCMD_BUFLEN SHOWCMD_COLS + 1 + 30
3634 #else
3635 # define SHOWCMD_BUFLEN SHOWCMD_COLS + 1
3636 #endif
3637 static char_u	showcmd_buf[SHOWCMD_BUFLEN];
3638 static char_u	old_showcmd_buf[SHOWCMD_BUFLEN];  /* For push_showcmd() */
3639 static int	showcmd_is_clear = TRUE;
3640 static int	showcmd_visual = FALSE;
3641 
3642 static void display_showcmd __ARGS((void));
3643 
3644     void
3645 clear_showcmd()
3646 {
3647     if (!p_sc)
3648 	return;
3649 
3650 #ifdef FEAT_VISUAL
3651     if (VIsual_active && !char_avail())
3652     {
3653 	int		i = lt(VIsual, curwin->w_cursor);
3654 	long		lines;
3655 	colnr_T		leftcol, rightcol;
3656 	linenr_T	top, bot;
3657 
3658 	/* Show the size of the Visual area. */
3659 	if (i)
3660 	{
3661 	    top = VIsual.lnum;
3662 	    bot = curwin->w_cursor.lnum;
3663 	}
3664 	else
3665 	{
3666 	    top = curwin->w_cursor.lnum;
3667 	    bot = VIsual.lnum;
3668 	}
3669 # ifdef FEAT_FOLDING
3670 	/* Include closed folds as a whole. */
3671 	hasFolding(top, &top, NULL);
3672 	hasFolding(bot, NULL, &bot);
3673 # endif
3674 	lines = bot - top + 1;
3675 
3676 	if (VIsual_mode == Ctrl_V)
3677 	{
3678 	    getvcols(curwin, &curwin->w_cursor, &VIsual, &leftcol, &rightcol);
3679 	    sprintf((char *)showcmd_buf, "%ldx%ld", lines,
3680 					      (long)(rightcol - leftcol + 1));
3681 	}
3682 	else if (VIsual_mode == 'V' || VIsual.lnum != curwin->w_cursor.lnum)
3683 	    sprintf((char *)showcmd_buf, "%ld", lines);
3684 	else
3685 	    sprintf((char *)showcmd_buf, "%ld", (long)(i
3686 		    ? curwin->w_cursor.col - VIsual.col
3687 		    : VIsual.col - curwin->w_cursor.col) + (*p_sel != 'e'));
3688 	showcmd_buf[SHOWCMD_COLS] = NUL;	/* truncate */
3689 	showcmd_visual = TRUE;
3690     }
3691     else
3692 #endif
3693     {
3694 	showcmd_buf[0] = NUL;
3695 	showcmd_visual = FALSE;
3696 
3697 	/* Don't actually display something if there is nothing to clear. */
3698 	if (showcmd_is_clear)
3699 	    return;
3700     }
3701 
3702     display_showcmd();
3703 }
3704 
3705 /*
3706  * Add 'c' to string of shown command chars.
3707  * Return TRUE if output has been written (and setcursor() has been called).
3708  */
3709     int
3710 add_to_showcmd(c)
3711     int		c;
3712 {
3713     char_u	*p;
3714     int		old_len;
3715     int		extra_len;
3716     int		overflow;
3717 #if defined(FEAT_MOUSE)
3718     int		i;
3719     static int	ignore[] =
3720     {
3721 # ifdef FEAT_GUI
3722 	K_VER_SCROLLBAR, K_HOR_SCROLLBAR,
3723 	K_LEFTMOUSE_NM, K_LEFTRELEASE_NM,
3724 # endif
3725 	K_IGNORE,
3726 	K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE,
3727 	K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
3728 	K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
3729 	K_MOUSEDOWN, K_MOUSEUP,
3730 	K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
3731 	K_CURSORHOLD,
3732 	0
3733     };
3734 #endif
3735 
3736     if (!p_sc || msg_silent != 0)
3737 	return FALSE;
3738 
3739     if (showcmd_visual)
3740     {
3741 	showcmd_buf[0] = NUL;
3742 	showcmd_visual = FALSE;
3743     }
3744 
3745 #if defined(FEAT_MOUSE)
3746     /* Ignore keys that are scrollbar updates and mouse clicks */
3747     if (IS_SPECIAL(c))
3748 	for (i = 0; ignore[i] != 0; ++i)
3749 	    if (ignore[i] == c)
3750 		return FALSE;
3751 #endif
3752 
3753     p = transchar(c);
3754     old_len = (int)STRLEN(showcmd_buf);
3755     extra_len = (int)STRLEN(p);
3756     overflow = old_len + extra_len - SHOWCMD_COLS;
3757     if (overflow > 0)
3758 	STRCPY(showcmd_buf, showcmd_buf + overflow);
3759     STRCAT(showcmd_buf, p);
3760 
3761     if (char_avail())
3762 	return FALSE;
3763 
3764     display_showcmd();
3765 
3766     return TRUE;
3767 }
3768 
3769     void
3770 add_to_showcmd_c(c)
3771     int		c;
3772 {
3773     if (!add_to_showcmd(c))
3774 	setcursor();
3775 }
3776 
3777 /*
3778  * Delete 'len' characters from the end of the shown command.
3779  */
3780     static void
3781 del_from_showcmd(len)
3782     int	    len;
3783 {
3784     int	    old_len;
3785 
3786     if (!p_sc)
3787 	return;
3788 
3789     old_len = (int)STRLEN(showcmd_buf);
3790     if (len > old_len)
3791 	len = old_len;
3792     showcmd_buf[old_len - len] = NUL;
3793 
3794     if (!char_avail())
3795 	display_showcmd();
3796 }
3797 
3798 /*
3799  * push_showcmd() and pop_showcmd() are used when waiting for the user to type
3800  * something and there is a partial mapping.
3801  */
3802     void
3803 push_showcmd()
3804 {
3805     if (p_sc)
3806 	STRCPY(old_showcmd_buf, showcmd_buf);
3807 }
3808 
3809     void
3810 pop_showcmd()
3811 {
3812     if (!p_sc)
3813 	return;
3814 
3815     STRCPY(showcmd_buf, old_showcmd_buf);
3816 
3817     display_showcmd();
3818 }
3819 
3820     static void
3821 display_showcmd()
3822 {
3823     int	    len;
3824 
3825     cursor_off();
3826 
3827     len = (int)STRLEN(showcmd_buf);
3828     if (len == 0)
3829 	showcmd_is_clear = TRUE;
3830     else
3831     {
3832 	screen_puts(showcmd_buf, (int)Rows - 1, sc_col, 0);
3833 	showcmd_is_clear = FALSE;
3834     }
3835 
3836     /*
3837      * clear the rest of an old message by outputing up to SHOWCMD_COLS spaces
3838      */
3839     screen_puts((char_u *)"          " + len, (int)Rows - 1, sc_col + len, 0);
3840 
3841     setcursor();	    /* put cursor back where it belongs */
3842 }
3843 #endif
3844 
3845 #ifdef FEAT_SCROLLBIND
3846 /*
3847  * When "check" is FALSE, prepare for commands that scroll the window.
3848  * When "check" is TRUE, take care of scroll-binding after the window has
3849  * scrolled.  Called from normal_cmd() and edit().
3850  */
3851     void
3852 do_check_scrollbind(check)
3853     int		check;
3854 {
3855     static win_T	*old_curwin = NULL;
3856     static linenr_T	old_topline = 0;
3857 #ifdef FEAT_DIFF
3858     static int		old_topfill = 0;
3859 #endif
3860     static buf_T	*old_buf = NULL;
3861     static colnr_T	old_leftcol = 0;
3862 
3863     if (check && curwin->w_p_scb)
3864     {
3865 	/* If a ":syncbind" command was just used, don't scroll, only reset
3866 	 * the values. */
3867 	if (did_syncbind)
3868 	    did_syncbind = FALSE;
3869 	else if (curwin == old_curwin)
3870 	{
3871 	    /*
3872 	     * Synchronize other windows, as necessary according to
3873 	     * 'scrollbind'.  Don't do this after an ":edit" command, except
3874 	     * when 'diff' is set.
3875 	     */
3876 	    if ((curwin->w_buffer == old_buf
3877 #ifdef FEAT_DIFF
3878 			|| curwin->w_p_diff
3879 #endif
3880 		)
3881 		&& (curwin->w_topline != old_topline
3882 #ifdef FEAT_DIFF
3883 			|| curwin->w_topfill != old_topfill
3884 #endif
3885 			|| curwin->w_leftcol != old_leftcol))
3886 	    {
3887 		check_scrollbind(curwin->w_topline - old_topline,
3888 			(long)(curwin->w_leftcol - old_leftcol));
3889 	    }
3890 	}
3891 	else if (vim_strchr(p_sbo, 'j')) /* jump flag set in 'scrollopt' */
3892 	{
3893 	    /*
3894 	     * When switching between windows, make sure that the relative
3895 	     * vertical offset is valid for the new window.  The relative
3896 	     * offset is invalid whenever another 'scrollbind' window has
3897 	     * scrolled to a point that would force the current window to
3898 	     * scroll past the beginning or end of its buffer.  When the
3899 	     * resync is performed, some of the other 'scrollbind' windows may
3900 	     * need to jump so that the current window's relative position is
3901 	     * visible on-screen.
3902 	     */
3903 	    check_scrollbind(curwin->w_topline - curwin->w_scbind_pos, 0L);
3904 	}
3905 	curwin->w_scbind_pos = curwin->w_topline;
3906     }
3907 
3908     old_curwin = curwin;
3909     old_topline = curwin->w_topline;
3910 #ifdef FEAT_DIFF
3911     old_topfill = curwin->w_topfill;
3912 #endif
3913     old_buf = curwin->w_buffer;
3914     old_leftcol = curwin->w_leftcol;
3915 }
3916 
3917 /*
3918  * Synchronize any windows that have "scrollbind" set, based on the
3919  * number of rows by which the current window has changed
3920  * (1998-11-02 16:21:01  R. Edward Ralston <[email protected]>)
3921  */
3922     void
3923 check_scrollbind(topline_diff, leftcol_diff)
3924     linenr_T	topline_diff;
3925     long	leftcol_diff;
3926 {
3927     int		want_ver;
3928     int		want_hor;
3929     win_T	*old_curwin = curwin;
3930     buf_T	*old_curbuf = curbuf;
3931 #ifdef FEAT_VISUAL
3932     int		old_VIsual_select = VIsual_select;
3933     int		old_VIsual_active = VIsual_active;
3934 #endif
3935     colnr_T	tgt_leftcol = curwin->w_leftcol;
3936     long	topline;
3937     long	y;
3938 
3939     /*
3940      * check 'scrollopt' string for vertical and horizontal scroll options
3941      */
3942     want_ver = (vim_strchr(p_sbo, 'v') && topline_diff != 0);
3943 #ifdef FEAT_DIFF
3944     want_ver |= old_curwin->w_p_diff;
3945 #endif
3946     want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || topline_diff != 0));
3947 
3948     /*
3949      * loop through the scrollbound windows and scroll accordingly
3950      */
3951 #ifdef FEAT_VISUAL
3952     VIsual_select = VIsual_active = 0;
3953 #endif
3954     for (curwin = firstwin; curwin; curwin = curwin->w_next)
3955     {
3956 	curbuf = curwin->w_buffer;
3957 	/* skip original window  and windows with 'noscrollbind' */
3958 	if (curwin != old_curwin && curwin->w_p_scb)
3959 	{
3960 	    /*
3961 	     * do the vertical scroll
3962 	     */
3963 	    if (want_ver)
3964 	    {
3965 #ifdef FEAT_DIFF
3966 		if (old_curwin->w_p_diff && curwin->w_p_diff)
3967 		{
3968 		    diff_set_topline(old_curwin, curwin);
3969 		}
3970 		else
3971 #endif
3972 		{
3973 		    curwin->w_scbind_pos += topline_diff;
3974 		    topline = curwin->w_scbind_pos;
3975 		    if (topline > curbuf->b_ml.ml_line_count)
3976 			topline = curbuf->b_ml.ml_line_count;
3977 		    if (topline < 1)
3978 			topline = 1;
3979 
3980 		    y = topline - curwin->w_topline;
3981 		    if (y > 0)
3982 			scrollup(y, FALSE);
3983 		    else
3984 			scrolldown(-y, FALSE);
3985 		}
3986 
3987 		redraw_later(VALID);
3988 		cursor_correct();
3989 #ifdef FEAT_WINDOWS
3990 		curwin->w_redr_status = TRUE;
3991 #endif
3992 	    }
3993 
3994 	    /*
3995 	     * do the horizontal scroll
3996 	     */
3997 	    if (want_hor && curwin->w_leftcol != tgt_leftcol)
3998 	    {
3999 		curwin->w_leftcol = tgt_leftcol;
4000 		leftcol_changed();
4001 	    }
4002 	}
4003     }
4004 
4005     /*
4006      * reset current-window
4007      */
4008 #ifdef FEAT_VISUAL
4009     VIsual_select = old_VIsual_select;
4010     VIsual_active = old_VIsual_active;
4011 #endif
4012     curwin = old_curwin;
4013     curbuf = old_curbuf;
4014 }
4015 #endif /* #ifdef FEAT_SCROLLBIND */
4016 
4017 /*
4018  * Command character that's ignored.
4019  * Used for CTRL-Q and CTRL-S to avoid problems with terminals that use
4020  * xon/xoff
4021  */
4022     static void
4023 nv_ignore(cap)
4024     cmdarg_T	*cap;
4025 {
4026     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
4027 }
4028 
4029 /*
4030  * Command character that doesn't do anything, but unlike nv_ignore() does
4031  * start edit().  Used for "startinsert" executed while starting up.
4032  */
4033 /*ARGSUSED */
4034     static void
4035 nv_nop(cap)
4036     cmdarg_T	*cap;
4037 {
4038 }
4039 
4040 /*
4041  * Command character doesn't exist.
4042  */
4043     static void
4044 nv_error(cap)
4045     cmdarg_T	*cap;
4046 {
4047     clearopbeep(cap->oap);
4048 }
4049 
4050 /*
4051  * <Help> and <F1> commands.
4052  */
4053     static void
4054 nv_help(cap)
4055     cmdarg_T	*cap;
4056 {
4057     if (!checkclearopq(cap->oap))
4058 	ex_help(NULL);
4059 }
4060 
4061 /*
4062  * CTRL-A and CTRL-X: Add or subtract from letter or number under cursor.
4063  */
4064     static void
4065 nv_addsub(cap)
4066     cmdarg_T	*cap;
4067 {
4068     if (!checkclearopq(cap->oap)
4069 	    && do_addsub((int)cap->cmdchar, cap->count1) == OK)
4070 	prep_redo_cmd(cap);
4071 }
4072 
4073 /*
4074  * CTRL-F, CTRL-B, etc: Scroll page up or down.
4075  */
4076     static void
4077 nv_page(cap)
4078     cmdarg_T	*cap;
4079 {
4080     if (!checkclearop(cap->oap))
4081     {
4082 #ifdef FEAT_WINDOWS
4083 	if (mod_mask & MOD_MASK_CTRL)
4084 	{
4085 	    /* <C-PageUp>: tab page back; <C-PageDown>: tab page forward */
4086 	    if (cap->arg == BACKWARD)
4087 		goto_tabpage(-(int)cap->count1);
4088 	    else
4089 		goto_tabpage((int)cap->count0);
4090 	}
4091 	else
4092 #endif
4093 	(void)onepage(cap->arg, cap->count1);
4094     }
4095 }
4096 
4097 /*
4098  * Implementation of "gd" and "gD" command.
4099  */
4100     static void
4101 nv_gd(oap, nchar, thisblock)
4102     oparg_T	*oap;
4103     int		nchar;
4104     int		thisblock;	/* 1 for "1gd" and "1gD" */
4105 {
4106     int		len;
4107     char_u	*ptr;
4108 
4109     if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
4110 	    || find_decl(ptr, len, nchar == 'd', thisblock, 0) == FAIL)
4111 	clearopbeep(oap);
4112 #ifdef FEAT_FOLDING
4113     else if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
4114 	foldOpenCursor();
4115 #endif
4116 }
4117 
4118 /*
4119  * Search for variable declaration of "ptr[len]".
4120  * When "locally" is TRUE in the current function ("gd"), otherwise in the
4121  * current file ("gD").
4122  * When "thisblock" is TRUE check the {} block scope.
4123  * Return FAIL when not found.
4124  */
4125     int
4126 find_decl(ptr, len, locally, thisblock, searchflags)
4127     char_u	*ptr;
4128     int		len;
4129     int		locally;
4130     int		thisblock;
4131     int		searchflags;	/* flags passed to searchit() */
4132 {
4133     char_u	*pat;
4134     pos_T	old_pos;
4135     pos_T	par_pos;
4136     pos_T	found_pos;
4137     int		t;
4138     int		save_p_ws;
4139     int		save_p_scs;
4140     int		retval = OK;
4141     int		incl;
4142 
4143     if ((pat = alloc(len + 7)) == NULL)
4144 	return FAIL;
4145 
4146     /* Put "\V" before the pattern to avoid that the special meaning of "."
4147      * and "~" causes trouble. */
4148     sprintf((char *)pat, vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
4149 								    len, ptr);
4150     old_pos = curwin->w_cursor;
4151     save_p_ws = p_ws;
4152     save_p_scs = p_scs;
4153     p_ws = FALSE;	/* don't wrap around end of file now */
4154     p_scs = FALSE;	/* don't switch ignorecase off now */
4155 
4156     /*
4157      * With "gD" go to line 1.
4158      * With "gd" Search back for the start of the current function, then go
4159      * back until a blank line.  If this fails go to line 1.
4160      */
4161     if (!locally || !findpar(&incl, BACKWARD, 1L, '{', FALSE))
4162     {
4163 	setpcmark();			/* Set in findpar() otherwise */
4164 	curwin->w_cursor.lnum = 1;
4165 	par_pos = curwin->w_cursor;
4166     }
4167     else
4168     {
4169 	par_pos = curwin->w_cursor;
4170 	while (curwin->w_cursor.lnum > 1 && *skipwhite(ml_get_curline()) != NUL)
4171 	    --curwin->w_cursor.lnum;
4172     }
4173     curwin->w_cursor.col = 0;
4174 
4175     /* Search forward for the identifier, ignore comment lines. */
4176     clearpos(&found_pos);
4177     for (;;)
4178     {
4179 	t = searchit(curwin, curbuf, &curwin->w_cursor, FORWARD,
4180 				  pat, 1L, searchflags, RE_LAST, (linenr_T)0);
4181 	if (curwin->w_cursor.lnum >= old_pos.lnum)
4182 	    t = FAIL;	/* match after start is failure too */
4183 
4184 	if (thisblock && t != FAIL)
4185 	{
4186 	    pos_T	*pos;
4187 
4188 	    /* Check that the block the match is in doesn't end before the
4189 	     * position where we started the search from. */
4190 	    if ((pos = findmatchlimit(NULL, '}', FM_FORWARD,
4191 		     (int)(old_pos.lnum - curwin->w_cursor.lnum + 1))) != NULL
4192 		    && pos->lnum < old_pos.lnum)
4193 		continue;
4194 	}
4195 
4196 	if (t == FAIL)
4197 	{
4198 	    /* If we previously found a valid position, use it. */
4199 	    if (found_pos.lnum != 0)
4200 	    {
4201 		curwin->w_cursor = found_pos;
4202 		t = OK;
4203 	    }
4204 	    break;
4205 	}
4206 #ifdef FEAT_COMMENTS
4207 	if (get_leader_len(ml_get_curline(), NULL, FALSE) > 0)
4208 	{
4209 	    /* Ignore this line, continue at start of next line. */
4210 	    ++curwin->w_cursor.lnum;
4211 	    curwin->w_cursor.col = 0;
4212 	    continue;
4213 	}
4214 #endif
4215 	if (!locally)	/* global search: use first match found */
4216 	    break;
4217 	if (curwin->w_cursor.lnum >= par_pos.lnum)
4218 	{
4219 	    /* If we previously found a valid position, use it. */
4220 	    if (found_pos.lnum != 0)
4221 		curwin->w_cursor = found_pos;
4222 	    break;
4223 	}
4224 
4225 	/* For finding a local variable and the match is before the "{" search
4226 	 * to find a later match.  For K&R style function declarations this
4227 	 * skips the function header without types. */
4228 	found_pos = curwin->w_cursor;
4229     }
4230 
4231     if (t == FAIL)
4232     {
4233 	retval = FAIL;
4234 	curwin->w_cursor = old_pos;
4235     }
4236     else
4237     {
4238 	curwin->w_set_curswant = TRUE;
4239 	/* "n" searches forward now */
4240 	reset_search_dir();
4241     }
4242 
4243     vim_free(pat);
4244     p_ws = save_p_ws;
4245     p_scs = save_p_scs;
4246 
4247     return retval;
4248 }
4249 
4250 /*
4251  * Move 'dist' lines in direction 'dir', counting lines by *screen*
4252  * lines rather than lines in the file.
4253  * 'dist' must be positive.
4254  *
4255  * Return OK if able to move cursor, FAIL otherwise.
4256  */
4257     static int
4258 nv_screengo(oap, dir, dist)
4259     oparg_T	*oap;
4260     int		dir;
4261     long	dist;
4262 {
4263     int		linelen = linetabsize(ml_get_curline());
4264     int		retval = OK;
4265     int		atend = FALSE;
4266     int		n;
4267     int		col_off1;	/* margin offset for first screen line */
4268     int		col_off2;	/* margin offset for wrapped screen line */
4269     int		width1;		/* text width for first screen line */
4270     int		width2;		/* test width for wrapped screen line */
4271 
4272     oap->motion_type = MCHAR;
4273     oap->inclusive = FALSE;
4274 
4275     col_off1 = curwin_col_off();
4276     col_off2 = col_off1 - curwin_col_off2();
4277     width1 = W_WIDTH(curwin) - col_off1;
4278     width2 = W_WIDTH(curwin) - col_off2;
4279 
4280 #ifdef FEAT_VERTSPLIT
4281     if (curwin->w_width != 0)
4282     {
4283 #endif
4284       /*
4285        * Instead of sticking at the last character of the buffer line we
4286        * try to stick in the last column of the screen.
4287        */
4288       if (curwin->w_curswant == MAXCOL)
4289       {
4290 	atend = TRUE;
4291 	validate_virtcol();
4292 	if (width1 <= 0)
4293 	    curwin->w_curswant = 0;
4294 	else
4295 	{
4296 	    curwin->w_curswant = width1 - 1;
4297 	    if (curwin->w_virtcol > curwin->w_curswant)
4298 		curwin->w_curswant += ((curwin->w_virtcol
4299 			     - curwin->w_curswant - 1) / width2 + 1) * width2;
4300 	}
4301       }
4302       else
4303       {
4304 	if (linelen > width1)
4305 	    n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4306 	else
4307 	    n = width1;
4308 	if (curwin->w_curswant > (colnr_T)n + 1)
4309 	    curwin->w_curswant -= ((curwin->w_curswant - n) / width2 + 1)
4310 								     * width2;
4311       }
4312 
4313       while (dist--)
4314       {
4315 	if (dir == BACKWARD)
4316 	{
4317 	    if ((long)curwin->w_curswant >= width2)
4318 		/* move back within line */
4319 		curwin->w_curswant -= width2;
4320 	    else
4321 	    {
4322 		/* to previous line */
4323 		if (curwin->w_cursor.lnum == 1)
4324 		{
4325 		    retval = FAIL;
4326 		    break;
4327 		}
4328 		--curwin->w_cursor.lnum;
4329 #ifdef FEAT_FOLDING
4330 		/* Move to the start of a closed fold.  Don't do that when
4331 		 * 'foldopen' contains "all": it will open in a moment. */
4332 		if (!(fdo_flags & FDO_ALL))
4333 		    (void)hasFolding(curwin->w_cursor.lnum,
4334 						&curwin->w_cursor.lnum, NULL);
4335 #endif
4336 		linelen = linetabsize(ml_get_curline());
4337 		if (linelen > width1)
4338 		    curwin->w_curswant += (((linelen - width1 - 1) / width2)
4339 								+ 1) * width2;
4340 	    }
4341 	}
4342 	else /* dir == FORWARD */
4343 	{
4344 	    if (linelen > width1)
4345 		n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4346 	    else
4347 		n = width1;
4348 	    if (curwin->w_curswant + width2 < (colnr_T)n)
4349 		/* move forward within line */
4350 		curwin->w_curswant += width2;
4351 	    else
4352 	    {
4353 		/* to next line */
4354 #ifdef FEAT_FOLDING
4355 		/* Move to the end of a closed fold. */
4356 		(void)hasFolding(curwin->w_cursor.lnum, NULL,
4357 						      &curwin->w_cursor.lnum);
4358 #endif
4359 		if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4360 		{
4361 		    retval = FAIL;
4362 		    break;
4363 		}
4364 		curwin->w_cursor.lnum++;
4365 		curwin->w_curswant %= width2;
4366 	    }
4367 	}
4368       }
4369 #ifdef FEAT_VERTSPLIT
4370     }
4371 #endif
4372 
4373     coladvance(curwin->w_curswant);
4374 
4375 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
4376     if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
4377     {
4378 	/*
4379 	 * Check for landing on a character that got split at the end of the
4380 	 * last line.  We want to advance a screenline, not end up in the same
4381 	 * screenline or move two screenlines.
4382 	 */
4383 	validate_virtcol();
4384 	if (curwin->w_virtcol > curwin->w_curswant
4385 		&& (curwin->w_curswant < (colnr_T)width1
4386 		    ? (curwin->w_curswant > (colnr_T)width1 / 2)
4387 		    : ((curwin->w_curswant - width1) % width2
4388 						      > (colnr_T)width2 / 2)))
4389 	    --curwin->w_cursor.col;
4390     }
4391 #endif
4392 
4393     if (atend)
4394 	curwin->w_curswant = MAXCOL;	    /* stick in the last column */
4395 
4396     return retval;
4397 }
4398 
4399 #ifdef FEAT_MOUSE
4400 /*
4401  * Mouse scroll wheel: Default action is to scroll three lines, or one page
4402  * when Shift or Ctrl is used.
4403  * K_MOUSEUP (cap->arg == TRUE) or K_MOUSEDOWN (cap->arg == FALSE)
4404  */
4405     static void
4406 nv_mousescroll(cap)
4407     cmdarg_T	*cap;
4408 {
4409 # if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
4410     win_T *old_curwin = curwin;
4411 
4412     /* Currently we only get the mouse coordinates in the GUI. */
4413     if (gui.in_use && mouse_row >= 0 && mouse_col >= 0)
4414     {
4415 	int row, col;
4416 
4417 	row = mouse_row;
4418 	col = mouse_col;
4419 
4420 	/* find the window at the pointer coordinates */
4421 	curwin = mouse_find_win(&row, &col);
4422 	curbuf = curwin->w_buffer;
4423     }
4424 # endif
4425 
4426     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4427     {
4428 	(void)onepage(cap->arg ? FORWARD : BACKWARD, 1L);
4429     }
4430     else
4431     {
4432 	cap->count1 = 3;
4433 	cap->count0 = 3;
4434 	nv_scroll_line(cap);
4435     }
4436 
4437 # if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
4438     curwin->w_redr_status = TRUE;
4439 
4440     curwin = old_curwin;
4441     curbuf = curwin->w_buffer;
4442 # endif
4443 }
4444 
4445 /*
4446  * Mouse clicks and drags.
4447  */
4448     static void
4449 nv_mouse(cap)
4450     cmdarg_T	*cap;
4451 {
4452     (void)do_mouse(cap->oap, cap->cmdchar, BACKWARD, cap->count1, 0);
4453 }
4454 #endif
4455 
4456 /*
4457  * Handle CTRL-E and CTRL-Y commands: scroll a line up or down.
4458  * cap->arg must be TRUE for CTRL-E.
4459  */
4460     static void
4461 nv_scroll_line(cap)
4462     cmdarg_T	*cap;
4463 {
4464     if (!checkclearop(cap->oap))
4465 	scroll_redraw(cap->arg, cap->count1);
4466 }
4467 
4468 /*
4469  * Scroll "count" lines up or down, and redraw.
4470  */
4471     void
4472 scroll_redraw(up, count)
4473     int		up;
4474     long	count;
4475 {
4476     linenr_T	prev_topline = curwin->w_topline;
4477 #ifdef FEAT_DIFF
4478     int		prev_topfill = curwin->w_topfill;
4479 #endif
4480     linenr_T	prev_lnum = curwin->w_cursor.lnum;
4481 
4482     if (up)
4483 	scrollup(count, TRUE);
4484     else
4485 	scrolldown(count, TRUE);
4486     if (p_so)
4487     {
4488 	/* Adjust the cursor position for 'scrolloff'.  Mark w_topline as
4489 	 * valid, otherwise the screen jumps back at the end of the file. */
4490 	cursor_correct();
4491 	check_cursor_moved(curwin);
4492 	curwin->w_valid |= VALID_TOPLINE;
4493 
4494 	/* If moved back to where we were, at least move the cursor, otherwise
4495 	 * we get stuck at one position.  Don't move the cursor up if the
4496 	 * first line of the buffer is already on the screen */
4497 	while (curwin->w_topline == prev_topline
4498 #ifdef FEAT_DIFF
4499 		&& curwin->w_topfill == prev_topfill
4500 #endif
4501 		)
4502 	{
4503 	    if (up)
4504 	    {
4505 		if (curwin->w_cursor.lnum > prev_lnum
4506 			|| cursor_down(1L, FALSE) == FAIL)
4507 		    break;
4508 	    }
4509 	    else
4510 	    {
4511 		if (curwin->w_cursor.lnum < prev_lnum
4512 			|| prev_topline == 1L
4513 			|| cursor_up(1L, FALSE) == FAIL)
4514 		    break;
4515 	    }
4516 	    /* Mark w_topline as valid, otherwise the screen jumps back at the
4517 	     * end of the file. */
4518 	    check_cursor_moved(curwin);
4519 	    curwin->w_valid |= VALID_TOPLINE;
4520 	}
4521     }
4522     if (curwin->w_cursor.lnum != prev_lnum)
4523 	coladvance(curwin->w_curswant);
4524     redraw_later(VALID);
4525 }
4526 
4527 /*
4528  * Commands that start with "z".
4529  */
4530     static void
4531 nv_zet(cap)
4532     cmdarg_T  *cap;
4533 {
4534     long	n;
4535     colnr_T	col;
4536     int		nchar = cap->nchar;
4537 #ifdef FEAT_FOLDING
4538     long	old_fdl = curwin->w_p_fdl;
4539     int		old_fen = curwin->w_p_fen;
4540 #endif
4541 #ifdef FEAT_SPELL
4542     int		undo = FALSE;
4543 #endif
4544 
4545     if (VIM_ISDIGIT(nchar))
4546     {
4547 	/*
4548 	 * "z123{nchar}": edit the count before obtaining {nchar}
4549 	 */
4550 	if (checkclearop(cap->oap))
4551 	    return;
4552 	n = nchar - '0';
4553 	for (;;)
4554 	{
4555 #ifdef USE_ON_FLY_SCROLL
4556 	    dont_scroll = TRUE;		/* disallow scrolling here */
4557 #endif
4558 	    ++no_mapping;
4559 	    ++allow_keys;   /* no mapping for nchar, but allow key codes */
4560 	    nchar = safe_vgetc();
4561 #ifdef FEAT_LANGMAP
4562 	    LANGMAP_ADJUST(nchar, TRUE);
4563 #endif
4564 	    --no_mapping;
4565 	    --allow_keys;
4566 #ifdef FEAT_CMDL_INFO
4567 	    (void)add_to_showcmd(nchar);
4568 #endif
4569 	    if (nchar == K_DEL || nchar == K_KDEL)
4570 		n /= 10;
4571 	    else if (VIM_ISDIGIT(nchar))
4572 		n = n * 10 + (nchar - '0');
4573 	    else if (nchar == CAR)
4574 	    {
4575 #ifdef FEAT_GUI
4576 		need_mouse_correct = TRUE;
4577 #endif
4578 		win_setheight((int)n);
4579 		break;
4580 	    }
4581 	    else if (nchar == 'l'
4582 		    || nchar == 'h'
4583 		    || nchar == K_LEFT
4584 		    || nchar == K_RIGHT)
4585 	    {
4586 		cap->count1 = n ? n * cap->count1 : cap->count1;
4587 		goto dozet;
4588 	    }
4589 	    else
4590 	    {
4591 		clearopbeep(cap->oap);
4592 		break;
4593 	    }
4594 	}
4595 	cap->oap->op_type = OP_NOP;
4596 	return;
4597     }
4598 
4599 dozet:
4600     if (
4601 #ifdef FEAT_FOLDING
4602 	    /* "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
4603 	     * and "zC" only in Visual mode.  "zj" and "zk" are motion
4604 	     * commands. */
4605 	    cap->nchar != 'f' && cap->nchar != 'F'
4606 	    && !(VIsual_active && vim_strchr((char_u *)"dcCoO", cap->nchar))
4607 	    && cap->nchar != 'j' && cap->nchar != 'k'
4608 	    &&
4609 #endif
4610 	    checkclearop(cap->oap))
4611 	return;
4612 
4613     /*
4614      * For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
4615      * If line number given, set cursor.
4616      */
4617     if ((vim_strchr((char_u *)"+\r\nt.z^-b", nchar) != NULL)
4618 	    && cap->count0
4619 	    && cap->count0 != curwin->w_cursor.lnum)
4620     {
4621 	setpcmark();
4622 	if (cap->count0 > curbuf->b_ml.ml_line_count)
4623 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4624 	else
4625 	    curwin->w_cursor.lnum = cap->count0;
4626 	check_cursor_col();
4627     }
4628 
4629     switch (nchar)
4630     {
4631 		/* "z+", "z<CR>" and "zt": put cursor at top of screen */
4632     case '+':
4633 		if (cap->count0 == 0)
4634 		{
4635 		    /* No count given: put cursor at the line below screen */
4636 		    validate_botline();	/* make sure w_botline is valid */
4637 		    if (curwin->w_botline > curbuf->b_ml.ml_line_count)
4638 			curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4639 		    else
4640 			curwin->w_cursor.lnum = curwin->w_botline;
4641 		}
4642 		/* FALLTHROUGH */
4643     case NL:
4644     case CAR:
4645     case K_KENTER:
4646 		beginline(BL_WHITE | BL_FIX);
4647 		/* FALLTHROUGH */
4648 
4649     case 't':	scroll_cursor_top(0, TRUE);
4650 		redraw_later(VALID);
4651 		break;
4652 
4653 		/* "z." and "zz": put cursor in middle of screen */
4654     case '.':	beginline(BL_WHITE | BL_FIX);
4655 		/* FALLTHROUGH */
4656 
4657     case 'z':	scroll_cursor_halfway(TRUE);
4658 		redraw_later(VALID);
4659 		break;
4660 
4661 		/* "z^", "z-" and "zb": put cursor at bottom of screen */
4662     case '^':	/* Strange Vi behavior: <count>z^ finds line at top of window
4663 		 * when <count> is at bottom of window, and puts that one at
4664 		 * bottom of window. */
4665 		if (cap->count0 != 0)
4666 		{
4667 		    scroll_cursor_bot(0, TRUE);
4668 		    curwin->w_cursor.lnum = curwin->w_topline;
4669 		}
4670 		else if (curwin->w_topline == 1)
4671 		    curwin->w_cursor.lnum = 1;
4672 		else
4673 		    curwin->w_cursor.lnum = curwin->w_topline - 1;
4674 		/* FALLTHROUGH */
4675     case '-':
4676 		beginline(BL_WHITE | BL_FIX);
4677 		/* FALLTHROUGH */
4678 
4679     case 'b':	scroll_cursor_bot(0, TRUE);
4680 		redraw_later(VALID);
4681 		break;
4682 
4683 		/* "zH" - scroll screen right half-page */
4684     case 'H':
4685 		cap->count1 *= W_WIDTH(curwin) / 2;
4686 		/* FALLTHROUGH */
4687 
4688 		/* "zh" - scroll screen to the right */
4689     case 'h':
4690     case K_LEFT:
4691 		if (!curwin->w_p_wrap)
4692 		{
4693 		    if ((colnr_T)cap->count1 > curwin->w_leftcol)
4694 			curwin->w_leftcol = 0;
4695 		    else
4696 			curwin->w_leftcol -= (colnr_T)cap->count1;
4697 		    leftcol_changed();
4698 		}
4699 		break;
4700 
4701 		/* "zL" - scroll screen left half-page */
4702     case 'L':	cap->count1 *= W_WIDTH(curwin) / 2;
4703 		/* FALLTHROUGH */
4704 
4705 		/* "zl" - scroll screen to the left */
4706     case 'l':
4707     case K_RIGHT:
4708 		if (!curwin->w_p_wrap)
4709 		{
4710 		    /* scroll the window left */
4711 		    curwin->w_leftcol += (colnr_T)cap->count1;
4712 		    leftcol_changed();
4713 		}
4714 		break;
4715 
4716 		/* "zs" - scroll screen, cursor at the start */
4717     case 's':	if (!curwin->w_p_wrap)
4718 		{
4719 #ifdef FEAT_FOLDING
4720 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4721 			col = 0;	/* like the cursor is in col 0 */
4722 		    else
4723 #endif
4724 		    getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
4725 		    if ((long)col > p_siso)
4726 			col -= p_siso;
4727 		    else
4728 			col = 0;
4729 		    if (curwin->w_leftcol != col)
4730 		    {
4731 			curwin->w_leftcol = col;
4732 			redraw_later(NOT_VALID);
4733 		    }
4734 		}
4735 		break;
4736 
4737 		/* "ze" - scroll screen, cursor at the end */
4738     case 'e':	if (!curwin->w_p_wrap)
4739 		{
4740 #ifdef FEAT_FOLDING
4741 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4742 			col = 0;	/* like the cursor is in col 0 */
4743 		    else
4744 #endif
4745 		    getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
4746 		    n = W_WIDTH(curwin) - curwin_col_off();
4747 		    if ((long)col + p_siso < n)
4748 			col = 0;
4749 		    else
4750 			col = col + p_siso - n + 1;
4751 		    if (curwin->w_leftcol != col)
4752 		    {
4753 			curwin->w_leftcol = col;
4754 			redraw_later(NOT_VALID);
4755 		    }
4756 		}
4757 		break;
4758 
4759 #ifdef FEAT_FOLDING
4760 		/* "zF": create fold command */
4761 		/* "zf": create fold operator */
4762     case 'F':
4763     case 'f':   if (foldManualAllowed(TRUE))
4764 		{
4765 		    cap->nchar = 'f';
4766 		    nv_operator(cap);
4767 		    curwin->w_p_fen = TRUE;
4768 
4769 		    /* "zF" is like "zfzf" */
4770 		    if (nchar == 'F' && cap->oap->op_type == OP_FOLD)
4771 		    {
4772 			nv_operator(cap);
4773 			finish_op = TRUE;
4774 		    }
4775 		}
4776 		else
4777 		    clearopbeep(cap->oap);
4778 		break;
4779 
4780 		/* "zd": delete fold at cursor */
4781 		/* "zD": delete fold at cursor recursively */
4782     case 'd':
4783     case 'D':	if (foldManualAllowed(FALSE))
4784 		{
4785 		    if (VIsual_active)
4786 			nv_operator(cap);
4787 		    else
4788 			deleteFold(curwin->w_cursor.lnum,
4789 				  curwin->w_cursor.lnum, nchar == 'D', FALSE);
4790 		}
4791 		break;
4792 
4793 		/* "zE": erease all folds */
4794     case 'E':	if (foldmethodIsManual(curwin))
4795 		{
4796 		    clearFolding(curwin);
4797 		    changed_window_setting();
4798 		}
4799 		else if (foldmethodIsMarker(curwin))
4800 		    deleteFold((linenr_T)1, curbuf->b_ml.ml_line_count,
4801 								 TRUE, FALSE);
4802 		else
4803 		    EMSG(_("E352: Cannot erase folds with current 'foldmethod'"));
4804 		break;
4805 
4806 		/* "zn": fold none: reset 'foldenable' */
4807     case 'n':	curwin->w_p_fen = FALSE;
4808 		break;
4809 
4810 		/* "zN": fold Normal: set 'foldenable' */
4811     case 'N':	curwin->w_p_fen = TRUE;
4812 		break;
4813 
4814 		/* "zi": invert folding: toggle 'foldenable' */
4815     case 'i':	curwin->w_p_fen = !curwin->w_p_fen;
4816 		break;
4817 
4818 		/* "za": open closed fold or close open fold at cursor */
4819     case 'a':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4820 		    openFold(curwin->w_cursor.lnum, cap->count1);
4821 		else
4822 		{
4823 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4824 		    curwin->w_p_fen = TRUE;
4825 		}
4826 		break;
4827 
4828 		/* "zA": open fold at cursor recursively */
4829     case 'A':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4830 		    openFoldRecurse(curwin->w_cursor.lnum);
4831 		else
4832 		{
4833 		    closeFoldRecurse(curwin->w_cursor.lnum);
4834 		    curwin->w_p_fen = TRUE;
4835 		}
4836 		break;
4837 
4838 		/* "zo": open fold at cursor or Visual area */
4839     case 'o':	if (VIsual_active)
4840 		    nv_operator(cap);
4841 		else
4842 		    openFold(curwin->w_cursor.lnum, cap->count1);
4843 		break;
4844 
4845 		/* "zO": open fold recursively */
4846     case 'O':	if (VIsual_active)
4847 		    nv_operator(cap);
4848 		else
4849 		    openFoldRecurse(curwin->w_cursor.lnum);
4850 		break;
4851 
4852 		/* "zc": close fold at cursor or Visual area */
4853     case 'c':	if (VIsual_active)
4854 		    nv_operator(cap);
4855 		else
4856 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4857 		curwin->w_p_fen = TRUE;
4858 		break;
4859 
4860 		/* "zC": close fold recursively */
4861     case 'C':	if (VIsual_active)
4862 		    nv_operator(cap);
4863 		else
4864 		    closeFoldRecurse(curwin->w_cursor.lnum);
4865 		curwin->w_p_fen = TRUE;
4866 		break;
4867 
4868 		/* "zv": open folds at the cursor */
4869     case 'v':	foldOpenCursor();
4870 		break;
4871 
4872 		/* "zx": re-apply 'foldlevel' and open folds at the cursor */
4873     case 'x':	curwin->w_p_fen = TRUE;
4874 		newFoldLevel();		/* update right now */
4875 		foldOpenCursor();
4876 		break;
4877 
4878 		/* "zX": undo manual opens/closes, re-apply 'foldlevel' */
4879     case 'X':	curwin->w_p_fen = TRUE;
4880 		old_fdl = -1;		/* force an update */
4881 		break;
4882 
4883 		/* "zm": fold more */
4884     case 'm':	if (curwin->w_p_fdl > 0)
4885 		    --curwin->w_p_fdl;
4886 		old_fdl = -1;		/* force an update */
4887 		curwin->w_p_fen = TRUE;
4888 		break;
4889 
4890 		/* "zM": close all folds */
4891     case 'M':	curwin->w_p_fdl = 0;
4892 		old_fdl = -1;		/* force an update */
4893 		curwin->w_p_fen = TRUE;
4894 		break;
4895 
4896 		/* "zr": reduce folding */
4897     case 'r':	++curwin->w_p_fdl;
4898 		break;
4899 
4900 		/* "zR": open all folds */
4901     case 'R':	curwin->w_p_fdl = getDeepestNesting();
4902 		old_fdl = -1;		/* force an update */
4903 		break;
4904 
4905     case 'j':	/* "zj" move to next fold downwards */
4906     case 'k':	/* "zk" move to next fold upwards */
4907 		if (foldMoveTo(TRUE, nchar == 'j' ? FORWARD : BACKWARD,
4908 							  cap->count1) == FAIL)
4909 		    clearopbeep(cap->oap);
4910 		break;
4911 
4912 #endif /* FEAT_FOLDING */
4913 
4914 #ifdef FEAT_SPELL
4915     case 'u':	/* "zug" and "zuw": undo "zg" and "zw" */
4916 		++no_mapping;
4917 		++allow_keys;   /* no mapping for nchar, but allow key codes */
4918 		nchar = safe_vgetc();
4919 #ifdef FEAT_LANGMAP
4920 		LANGMAP_ADJUST(nchar, TRUE);
4921 #endif
4922 		--no_mapping;
4923 		--allow_keys;
4924 #ifdef FEAT_CMDL_INFO
4925 		(void)add_to_showcmd(nchar);
4926 #endif
4927 		if (vim_strchr((char_u *)"gGwW", nchar) == NULL)
4928 		{
4929 		    clearopbeep(cap->oap);
4930 		    break;
4931 		}
4932 		undo = TRUE;
4933 		/*FALLTHROUGH*/
4934 
4935     case 'g':	/* "zg": add good word to word list */
4936     case 'w':	/* "zw": add wrong word to word list */
4937     case 'G':	/* "zG": add good word to temp word list */
4938     case 'W':	/* "zW": add wrong word to temp word list */
4939 		{
4940 		    char_u  *ptr = NULL;
4941 		    int	    len;
4942 
4943 		    if (checkclearop(cap->oap))
4944 			break;
4945 # ifdef FEAT_VISUAL
4946 		    if (VIsual_active && get_visual_text(cap, &ptr, &len)
4947 								      == FAIL)
4948 			return;
4949 # endif
4950 		    if (ptr == NULL)
4951 		    {
4952 			pos_T	pos = curwin->w_cursor;
4953 
4954 			/* Find bad word under the cursor. */
4955 			len = spell_move_to(curwin, FORWARD, TRUE, TRUE, NULL);
4956 			if (len != 0 && curwin->w_cursor.col <= pos.col)
4957 			    ptr = ml_get_pos(&curwin->w_cursor);
4958 			curwin->w_cursor = pos;
4959 		    }
4960 
4961 		    if (ptr == NULL && (len = find_ident_under_cursor(&ptr,
4962 							    FIND_IDENT)) == 0)
4963 			return;
4964 		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W',
4965 					    (nchar == 'G' || nchar == 'W')
4966 						       ? 0 : (int)cap->count1,
4967 					    undo);
4968 		}
4969 		break;
4970 
4971     case '=':	/* "z=": suggestions for a badly spelled word  */
4972 		if (!checkclearop(cap->oap))
4973 		    spell_suggest((int)cap->count0);
4974 		break;
4975 #endif
4976 
4977     default:	clearopbeep(cap->oap);
4978     }
4979 
4980 #ifdef FEAT_FOLDING
4981     /* Redraw when 'foldenable' changed */
4982     if (old_fen != curwin->w_p_fen)
4983     {
4984 # ifdef FEAT_DIFF
4985 	win_T	    *wp;
4986 
4987 	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
4988 	{
4989 	    /* Adjust 'foldenable' in diff-synced windows. */
4990 	    FOR_ALL_WINDOWS(wp)
4991 	    {
4992 		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
4993 		{
4994 		    wp->w_p_fen = curwin->w_p_fen;
4995 		    changed_window_setting_win(wp);
4996 		}
4997 	    }
4998 	}
4999 # endif
5000 	changed_window_setting();
5001     }
5002 
5003     /* Redraw when 'foldlevel' changed. */
5004     if (old_fdl != curwin->w_p_fdl)
5005 	newFoldLevel();
5006 #endif
5007 }
5008 
5009 #ifdef FEAT_GUI
5010 /*
5011  * Vertical scrollbar movement.
5012  */
5013     static void
5014 nv_ver_scrollbar(cap)
5015     cmdarg_T	*cap;
5016 {
5017     if (cap->oap->op_type != OP_NOP)
5018 	clearopbeep(cap->oap);
5019 
5020     /* Even if an operator was pending, we still want to scroll */
5021     gui_do_scroll();
5022 }
5023 
5024 /*
5025  * Horizontal scrollbar movement.
5026  */
5027     static void
5028 nv_hor_scrollbar(cap)
5029     cmdarg_T	*cap;
5030 {
5031     if (cap->oap->op_type != OP_NOP)
5032 	clearopbeep(cap->oap);
5033 
5034     /* Even if an operator was pending, we still want to scroll */
5035     gui_do_horiz_scroll();
5036 }
5037 #endif
5038 
5039 #if defined(FEAT_GUI_TABLINE) || defined(PROTO)
5040 /*
5041  * Click in GUI tab.
5042  */
5043     static void
5044 nv_tabline(cap)
5045     cmdarg_T	*cap;
5046 {
5047     if (cap->oap->op_type != OP_NOP)
5048 	clearopbeep(cap->oap);
5049 
5050     /* Even if an operator was pending, we still want to jump tabs. */
5051     goto_tabpage(current_tab);
5052 }
5053 
5054 /*
5055  * Selected item in tab line menu.
5056  */
5057     static void
5058 nv_tabmenu(cap)
5059     cmdarg_T	*cap;
5060 {
5061     if (cap->oap->op_type != OP_NOP)
5062 	clearopbeep(cap->oap);
5063 
5064     /* Even if an operator was pending, we still want to jump tabs. */
5065     handle_tabmenu();
5066 }
5067 
5068 /*
5069  * Handle selecting an item of the GUI tab line menu.
5070  * Used in Normal and Insert mode.
5071  */
5072     void
5073 handle_tabmenu()
5074 {
5075     switch (current_tabmenu)
5076     {
5077 	case TABLINE_MENU_CLOSE:
5078 	    if (current_tab == 0)
5079 		do_cmdline_cmd((char_u *)"tabclose");
5080 	    else
5081 	    {
5082 		vim_snprintf((char *)IObuff, IOSIZE, "tabclose %d",
5083 								 current_tab);
5084 		do_cmdline_cmd(IObuff);
5085 	    }
5086 	    break;
5087 
5088 	case TABLINE_MENU_NEW:
5089 	    vim_snprintf((char *)IObuff, IOSIZE, "%dtabnew",
5090 				     current_tab > 0 ? current_tab - 1 : 999);
5091 	    do_cmdline_cmd(IObuff);
5092 	    break;
5093 
5094 	case TABLINE_MENU_OPEN:
5095 	    vim_snprintf((char *)IObuff, IOSIZE, "browse %dtabnew",
5096 				     current_tab > 0 ? current_tab - 1 : 999);
5097 	    do_cmdline_cmd(IObuff);
5098 	    break;
5099     }
5100 }
5101 #endif
5102 
5103 /*
5104  * "Q" command.
5105  */
5106     static void
5107 nv_exmode(cap)
5108     cmdarg_T	*cap;
5109 {
5110     /*
5111      * Ignore 'Q' in Visual mode, just give a beep.
5112      */
5113 #ifdef FEAT_VISUAL
5114     if (VIsual_active)
5115 	vim_beep();
5116     else
5117 #endif
5118 	if (!checkclearop(cap->oap))
5119 	do_exmode(FALSE);
5120 }
5121 
5122 /*
5123  * Handle a ":" command.
5124  */
5125     static void
5126 nv_colon(cap)
5127     cmdarg_T  *cap;
5128 {
5129     int	    old_p_im;
5130 
5131 #ifdef FEAT_VISUAL
5132     if (VIsual_active)
5133 	nv_operator(cap);
5134     else
5135 #endif
5136     {
5137 	if (cap->oap->op_type != OP_NOP)
5138 	{
5139 	    /* Using ":" as a movement is characterwise exclusive. */
5140 	    cap->oap->motion_type = MCHAR;
5141 	    cap->oap->inclusive = FALSE;
5142 	}
5143 	else if (cap->count0)
5144 	{
5145 	    /* translate "count:" into ":.,.+(count - 1)" */
5146 	    stuffcharReadbuff('.');
5147 	    if (cap->count0 > 1)
5148 	    {
5149 		stuffReadbuff((char_u *)",.+");
5150 		stuffnumReadbuff((long)cap->count0 - 1L);
5151 	    }
5152 	}
5153 
5154 	/* When typing, don't type below an old message */
5155 	if (KeyTyped)
5156 	    compute_cmdrow();
5157 
5158 	old_p_im = p_im;
5159 
5160 	/* get a command line and execute it */
5161 	do_cmdline(NULL, getexline, NULL,
5162 			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
5163 
5164 	/* If 'insertmode' changed, enter or exit Insert mode */
5165 	if (p_im != old_p_im)
5166 	{
5167 	    if (p_im)
5168 		restart_edit = 'i';
5169 	    else
5170 		restart_edit = 0;
5171 	}
5172 
5173 	/* The start of the operator may have become invalid by the Ex
5174 	 * command. */
5175 	if (cap->oap->op_type != OP_NOP
5176 		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
5177 		    || cap->oap->start.col >
5178 					 STRLEN(ml_get(cap->oap->start.lnum))))
5179 	    clearopbeep(cap->oap);
5180     }
5181 }
5182 
5183 /*
5184  * Handle CTRL-G command.
5185  */
5186     static void
5187 nv_ctrlg(cap)
5188     cmdarg_T *cap;
5189 {
5190 #ifdef FEAT_VISUAL
5191     if (VIsual_active)	/* toggle Selection/Visual mode */
5192     {
5193 	VIsual_select = !VIsual_select;
5194 	showmode();
5195     }
5196     else
5197 #endif
5198 	if (!checkclearop(cap->oap))
5199 	/* print full name if count given or :cd used */
5200 	fileinfo((int)cap->count0, FALSE, TRUE);
5201 }
5202 
5203 /*
5204  * Handle CTRL-H <Backspace> command.
5205  */
5206     static void
5207 nv_ctrlh(cap)
5208     cmdarg_T *cap;
5209 {
5210 #ifdef FEAT_VISUAL
5211     if (VIsual_active && VIsual_select)
5212     {
5213 	cap->cmdchar = 'x';	/* BS key behaves like 'x' in Select mode */
5214 	v_visop(cap);
5215     }
5216     else
5217 #endif
5218 	nv_left(cap);
5219 }
5220 
5221 /*
5222  * CTRL-L: clear screen and redraw.
5223  */
5224     static void
5225 nv_clear(cap)
5226     cmdarg_T	*cap;
5227 {
5228     if (!checkclearop(cap->oap))
5229     {
5230 #if defined(__BEOS__) && !USE_THREAD_FOR_INPUT_WITH_TIMEOUT
5231 	/*
5232 	 * Right now, the BeBox doesn't seem to have an easy way to detect
5233 	 * window resizing, so we cheat and make the user detect it
5234 	 * manually with CTRL-L instead
5235 	 */
5236 	ui_get_shellsize();
5237 #endif
5238 #ifdef FEAT_SYN_HL
5239 	/* Clear all syntax states to force resyncing. */
5240 	syn_stack_free_all(curbuf);
5241 #endif
5242 	redraw_later(CLEAR);
5243     }
5244 }
5245 
5246 /*
5247  * CTRL-O: In Select mode: switch to Visual mode for one command.
5248  * Otherwise: Go to older pcmark.
5249  */
5250     static void
5251 nv_ctrlo(cap)
5252     cmdarg_T	*cap;
5253 {
5254 #ifdef FEAT_VISUAL
5255     if (VIsual_active && VIsual_select)
5256     {
5257 	VIsual_select = FALSE;
5258 	showmode();
5259 	restart_VIsual_select = 2;	/* restart Select mode later */
5260     }
5261     else
5262 #endif
5263     {
5264 	cap->count1 = -cap->count1;
5265 	nv_pcmark(cap);
5266     }
5267 }
5268 
5269 /*
5270  * CTRL-^ command, short for ":e #"
5271  */
5272     static void
5273 nv_hat(cap)
5274     cmdarg_T	*cap;
5275 {
5276     if (!checkclearopq(cap->oap))
5277 	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
5278 						GETF_SETMARK|GETF_ALT, FALSE);
5279 }
5280 
5281 /*
5282  * "Z" commands.
5283  */
5284     static void
5285 nv_Zet(cap)
5286     cmdarg_T *cap;
5287 {
5288     if (!checkclearopq(cap->oap))
5289     {
5290 	switch (cap->nchar)
5291 	{
5292 			/* "ZZ": equivalent to ":x". */
5293 	    case 'Z':	do_cmdline_cmd((char_u *)"x");
5294 			break;
5295 
5296 			/* "ZQ": equivalent to ":q!" (Elvis compatible). */
5297 	    case 'Q':	do_cmdline_cmd((char_u *)"q!");
5298 			break;
5299 
5300 	    default:	clearopbeep(cap->oap);
5301 	}
5302     }
5303 }
5304 
5305 #if defined(FEAT_WINDOWS) || defined(PROTO)
5306 /*
5307  * Call nv_ident() as if "c1" was used, with "c2" as next character.
5308  */
5309     void
5310 do_nv_ident(c1, c2)
5311     int		c1;
5312     int		c2;
5313 {
5314     oparg_T	oa;
5315     cmdarg_T	ca;
5316 
5317     clear_oparg(&oa);
5318     vim_memset(&ca, 0, sizeof(ca));
5319     ca.oap = &oa;
5320     ca.cmdchar = c1;
5321     ca.nchar = c2;
5322     nv_ident(&ca);
5323 }
5324 #endif
5325 
5326 /*
5327  * Handle the commands that use the word under the cursor.
5328  * [g] CTRL-]	:ta to current identifier
5329  * [g] 'K'	run program for current identifier
5330  * [g] '*'	/ to current identifier or string
5331  * [g] '#'	? to current identifier or string
5332  *  g  ']'	:tselect for current identifier
5333  */
5334     static void
5335 nv_ident(cap)
5336     cmdarg_T	*cap;
5337 {
5338     char_u	*ptr = NULL;
5339     char_u	*buf;
5340     char_u	*p;
5341     char_u	*kp;		/* value of 'keywordprg' */
5342     int		kp_help;	/* 'keywordprg' is ":help" */
5343     int		n = 0;		/* init for GCC */
5344     int		cmdchar;
5345     int		g_cmd;		/* "g" command */
5346     char_u	*aux_ptr;
5347     int		isman;
5348     int		isman_s;
5349 
5350     if (cap->cmdchar == 'g')	/* "g*", "g#", "g]" and "gCTRL-]" */
5351     {
5352 	cmdchar = cap->nchar;
5353 	g_cmd = TRUE;
5354     }
5355     else
5356     {
5357 	cmdchar = cap->cmdchar;
5358 	g_cmd = FALSE;
5359     }
5360 
5361     if (cmdchar == POUND)	/* the pound sign, '#' for English keyboards */
5362 	cmdchar = '#';
5363 
5364     /*
5365      * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
5366      */
5367     if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
5368     {
5369 #ifdef FEAT_VISUAL
5370 	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
5371 	    return;
5372 #endif
5373 	if (checkclearopq(cap->oap))
5374 	    return;
5375     }
5376 
5377     if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
5378 		    (cmdchar == '*' || cmdchar == '#')
5379 				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
5380     {
5381 	clearop(cap->oap);
5382 	return;
5383     }
5384 
5385     /* Allocate buffer to put the command in.  Inserting backslashes can
5386      * double the length of the word.  p_kp / curbuf->b_p_kp could be added
5387      * and some numbers. */
5388     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
5389     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
5390 						 || STRCMP(kp, ":help") == 0);
5391     buf = alloc((unsigned)(n * 2 + 30 + STRLEN(kp)));
5392     if (buf == NULL)
5393 	return;
5394     buf[0] = NUL;
5395 
5396     switch (cmdchar)
5397     {
5398 	case '*':
5399 	case '#':
5400 	    /*
5401 	     * Put cursor at start of word, makes search skip the word
5402 	     * under the cursor.
5403 	     * Call setpcmark() first, so "*``" puts the cursor back where
5404 	     * it was.
5405 	     */
5406 	    setpcmark();
5407 	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());
5408 
5409 	    if (!g_cmd && vim_iswordp(ptr))
5410 		STRCPY(buf, "\\<");
5411 	    no_smartcase = TRUE;	/* don't use 'smartcase' now */
5412 	    break;
5413 
5414 	case 'K':
5415 	    if (kp_help)
5416 		STRCPY(buf, "he! ");
5417 	    else
5418 	    {
5419 		/* When a count is given, turn it into a range.  Is this
5420 		 * really what we want? */
5421 		isman = (STRCMP(kp, "man") == 0);
5422 		isman_s = (STRCMP(kp, "man -s") == 0);
5423 		if (cap->count0 != 0 && !(isman || isman_s))
5424 		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);
5425 
5426 		STRCAT(buf, "! ");
5427 		if (cap->count0 == 0 && isman_s)
5428 		    STRCAT(buf, "man");
5429 		else
5430 		    STRCAT(buf, kp);
5431 		STRCAT(buf, " ");
5432 		if (cap->count0 != 0 && (isman || isman_s))
5433 		{
5434 		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
5435 		    STRCAT(buf, " ");
5436 		}
5437 	    }
5438 	    break;
5439 
5440 	case ']':
5441 #ifdef FEAT_CSCOPE
5442 	    if (p_cst)
5443 		STRCPY(buf, "cstag ");
5444 	    else
5445 #endif
5446 		STRCPY(buf, "ts ");
5447 	    break;
5448 
5449 	default:
5450 	    if (curbuf->b_help)
5451 		STRCPY(buf, "he! ");
5452 	    else if (g_cmd)
5453 		STRCPY(buf, "tj ");
5454 	    else
5455 		sprintf((char *)buf, "%ldta ", cap->count0);
5456     }
5457 
5458     /*
5459      * Now grab the chars in the identifier
5460      */
5461     if (cmdchar == '*')
5462 	aux_ptr = (char_u *)(p_magic ? "/.*~[^$\\" : "/^$\\");
5463     else if (cmdchar == '#')
5464 	aux_ptr = (char_u *)(p_magic ? "/?.*~[^$\\" : "/?^$\\");
5465     else if (cmdchar == 'K' && !kp_help)
5466 	aux_ptr = (char_u *)" \t\\\"|!";
5467     else
5468 	/* Don't escape spaces and Tabs in a tag with a backslash */
5469 	aux_ptr = (char_u *)"\\|\"";
5470 
5471     p = buf + STRLEN(buf);
5472     while (n-- > 0)
5473     {
5474 	/* put a backslash before \ and some others */
5475 	if (vim_strchr(aux_ptr, *ptr) != NULL)
5476 	    *p++ = '\\';
5477 #ifdef FEAT_MBYTE
5478 	/* When current byte is a part of multibyte character, copy all bytes
5479 	 * of that character. */
5480 	if (has_mbyte)
5481 	{
5482 	    int i;
5483 	    int len = (*mb_ptr2len)(ptr) - 1;
5484 
5485 	    for (i = 0; i < len && n >= 1; ++i, --n)
5486 		*p++ = *ptr++;
5487 	}
5488 #endif
5489 	*p++ = *ptr++;
5490     }
5491     *p = NUL;
5492 
5493     /*
5494      * Execute the command.
5495      */
5496     if (cmdchar == '*' || cmdchar == '#')
5497     {
5498 	if (!g_cmd && (
5499 #ifdef FEAT_MBYTE
5500 		has_mbyte ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr)) :
5501 #endif
5502 		vim_iswordc(ptr[-1])))
5503 	    STRCAT(buf, "\\>");
5504 #ifdef FEAT_CMDHIST
5505 	/* put pattern in search history */
5506 	add_to_history(HIST_SEARCH, buf, TRUE, NUL);
5507 #endif
5508 	normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0);
5509     }
5510     else
5511 	do_cmdline_cmd(buf);
5512 
5513     vim_free(buf);
5514 }
5515 
5516 #if defined(FEAT_VISUAL) || defined(PROTO)
5517 /*
5518  * Get visually selected text, within one line only.
5519  * Returns FAIL if more than one line selected.
5520  */
5521     int
5522 get_visual_text(cap, pp, lenp)
5523     cmdarg_T	*cap;
5524     char_u	**pp;	    /* return: start of selected text */
5525     int		*lenp;	    /* return: length of selected text */
5526 {
5527     if (VIsual_mode != 'V')
5528 	unadjust_for_sel();
5529     if (VIsual.lnum != curwin->w_cursor.lnum)
5530     {
5531 	if (cap != NULL)
5532 	    clearopbeep(cap->oap);
5533 	return FAIL;
5534     }
5535     if (VIsual_mode == 'V')
5536     {
5537 	*pp = ml_get_curline();
5538 	*lenp = (int)STRLEN(*pp);
5539     }
5540     else
5541     {
5542 	if (lt(curwin->w_cursor, VIsual))
5543 	{
5544 	    *pp = ml_get_pos(&curwin->w_cursor);
5545 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
5546 	}
5547 	else
5548 	{
5549 	    *pp = ml_get_pos(&VIsual);
5550 	    *lenp = curwin->w_cursor.col - VIsual.col + 1;
5551 	}
5552 #ifdef FEAT_MBYTE
5553 	if (has_mbyte)
5554 	    /* Correct the length to include the whole last character. */
5555 	    *lenp += (*mb_ptr2len)(*pp + (*lenp - 1)) - 1;
5556 #endif
5557     }
5558     reset_VIsual_and_resel();
5559     return OK;
5560 }
5561 #endif
5562 
5563 /*
5564  * CTRL-T: backwards in tag stack
5565  */
5566     static void
5567 nv_tagpop(cap)
5568     cmdarg_T	*cap;
5569 {
5570     if (!checkclearopq(cap->oap))
5571 	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
5572 }
5573 
5574 /*
5575  * Handle scrolling command 'H', 'L' and 'M'.
5576  */
5577     static void
5578 nv_scroll(cap)
5579     cmdarg_T  *cap;
5580 {
5581     int		used = 0;
5582     long	n;
5583 #ifdef FEAT_FOLDING
5584     linenr_T	lnum;
5585 #endif
5586     int		half;
5587 
5588     cap->oap->motion_type = MLINE;
5589     setpcmark();
5590 
5591     if (cap->cmdchar == 'L')
5592     {
5593 	validate_botline();	    /* make sure curwin->w_botline is valid */
5594 	curwin->w_cursor.lnum = curwin->w_botline - 1;
5595 	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
5596 	    curwin->w_cursor.lnum = 1;
5597 	else
5598 	{
5599 #ifdef FEAT_FOLDING
5600 	    if (hasAnyFolding(curwin))
5601 	    {
5602 		/* Count a fold for one screen line. */
5603 		for (n = cap->count1 - 1; n > 0
5604 			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
5605 		{
5606 		    (void)hasFolding(curwin->w_cursor.lnum,
5607 						&curwin->w_cursor.lnum, NULL);
5608 		    --curwin->w_cursor.lnum;
5609 		}
5610 	    }
5611 	    else
5612 #endif
5613 		curwin->w_cursor.lnum -= cap->count1 - 1;
5614 	}
5615     }
5616     else
5617     {
5618 	if (cap->cmdchar == 'M')
5619 	{
5620 #ifdef FEAT_DIFF
5621 	    /* Don't count filler lines above the window. */
5622 	    used -= diff_check_fill(curwin, curwin->w_topline)
5623 							  - curwin->w_topfill;
5624 #endif
5625 	    validate_botline();	    /* make sure w_empty_rows is valid */
5626 	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
5627 	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
5628 	    {
5629 #ifdef FEAT_DIFF
5630 		/* Count half he number of filler lines to be "below this
5631 		 * line" and half to be "above the next line". */
5632 		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
5633 							     + n) / 2 >= half)
5634 		{
5635 		    --n;
5636 		    break;
5637 		}
5638 #endif
5639 		used += plines(curwin->w_topline + n);
5640 		if (used >= half)
5641 		    break;
5642 #ifdef FEAT_FOLDING
5643 		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
5644 		    n = lnum - curwin->w_topline;
5645 #endif
5646 	    }
5647 	    if (n > 0 && used > curwin->w_height)
5648 		--n;
5649 	}
5650 	else /* (cap->cmdchar == 'H') */
5651 	{
5652 	    n = cap->count1 - 1;
5653 #ifdef FEAT_FOLDING
5654 	    if (hasAnyFolding(curwin))
5655 	    {
5656 		/* Count a fold for one screen line. */
5657 		lnum = curwin->w_topline;
5658 		while (n-- > 0 && lnum < curwin->w_botline - 1)
5659 		{
5660 		    hasFolding(lnum, NULL, &lnum);
5661 		    ++lnum;
5662 		}
5663 		n = lnum - curwin->w_topline;
5664 	    }
5665 #endif
5666 	}
5667 	curwin->w_cursor.lnum = curwin->w_topline + n;
5668 	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
5669 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
5670     }
5671 
5672     cursor_correct();	/* correct for 'so' */
5673     beginline(BL_SOL | BL_FIX);
5674 }
5675 
5676 /*
5677  * Cursor right commands.
5678  */
5679     static void
5680 nv_right(cap)
5681     cmdarg_T	*cap;
5682 {
5683     long	n;
5684 #ifdef FEAT_VISUAL
5685     int		PAST_LINE;
5686 #else
5687 # define PAST_LINE 0
5688 #endif
5689 
5690     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5691     {
5692 	/* <C-Right> and <S-Right> move a word or WORD right */
5693 	if (mod_mask & MOD_MASK_CTRL)
5694 	    cap->arg = TRUE;
5695 	nv_wordcmd(cap);
5696 	return;
5697     }
5698 
5699     cap->oap->motion_type = MCHAR;
5700     cap->oap->inclusive = FALSE;
5701 #ifdef FEAT_VISUAL
5702     PAST_LINE = (VIsual_active && *p_sel != 'o');
5703 
5704 # ifdef FEAT_VIRTUALEDIT
5705     /*
5706      * In virtual mode, there's no such thing as "PAST_LINE", as lines are
5707      * (theoretically) infinitly long.
5708      */
5709     if (virtual_active())
5710 	PAST_LINE = 0;
5711 # endif
5712 #endif
5713 
5714     for (n = cap->count1; n > 0; --n)
5715     {
5716 	if ((!PAST_LINE && oneright() == FAIL)
5717 		|| (PAST_LINE && *ml_get_cursor() == NUL))
5718 	{
5719 	    /*
5720 	     *	  <Space> wraps to next line if 'whichwrap' has 's'.
5721 	     *	      'l' wraps to next line if 'whichwrap' has 'l'.
5722 	     * CURS_RIGHT wraps to next line if 'whichwrap' has '>'.
5723 	     */
5724 	    if (       ((cap->cmdchar == ' '
5725 			    && vim_strchr(p_ww, 's') != NULL)
5726 			|| (cap->cmdchar == 'l'
5727 			    && vim_strchr(p_ww, 'l') != NULL)
5728 			|| (cap->cmdchar == K_RIGHT
5729 			    && vim_strchr(p_ww, '>') != NULL))
5730 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
5731 	    {
5732 		/* When deleting we also count the NL as a character.
5733 		 * Set cap->oap->inclusive when last char in the line is
5734 		 * included, move to next line after that */
5735 		if (	   cap->oap->op_type != OP_NOP
5736 			&& !cap->oap->inclusive
5737 			&& !lineempty(curwin->w_cursor.lnum))
5738 		    cap->oap->inclusive = TRUE;
5739 		else
5740 		{
5741 		    ++curwin->w_cursor.lnum;
5742 		    curwin->w_cursor.col = 0;
5743 #ifdef FEAT_VIRTUALEDIT
5744 		    curwin->w_cursor.coladd = 0;
5745 #endif
5746 		    curwin->w_set_curswant = TRUE;
5747 		    cap->oap->inclusive = FALSE;
5748 		}
5749 		continue;
5750 	    }
5751 	    if (cap->oap->op_type == OP_NOP)
5752 	    {
5753 		/* Only beep and flush if not moved at all */
5754 		if (n == cap->count1)
5755 		    beep_flush();
5756 	    }
5757 	    else
5758 	    {
5759 		if (!lineempty(curwin->w_cursor.lnum))
5760 		    cap->oap->inclusive = TRUE;
5761 	    }
5762 	    break;
5763 	}
5764 #ifdef FEAT_VISUAL
5765 	else if (PAST_LINE)
5766 	{
5767 	    curwin->w_set_curswant = TRUE;
5768 # ifdef FEAT_VIRTUALEDIT
5769 	    if (virtual_active())
5770 		oneright();
5771 	    else
5772 # endif
5773 	    {
5774 # ifdef FEAT_MBYTE
5775 		if (has_mbyte)
5776 		    curwin->w_cursor.col +=
5777 					 (*mb_ptr2len)(ml_get_cursor());
5778 		else
5779 # endif
5780 		    ++curwin->w_cursor.col;
5781 	    }
5782 	}
5783 #endif
5784     }
5785 #ifdef FEAT_FOLDING
5786     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5787 					       && cap->oap->op_type == OP_NOP)
5788 	foldOpenCursor();
5789 #endif
5790 }
5791 
5792 /*
5793  * Cursor left commands.
5794  *
5795  * Returns TRUE when operator end should not be adjusted.
5796  */
5797     static void
5798 nv_left(cap)
5799     cmdarg_T	*cap;
5800 {
5801     long	n;
5802 
5803     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5804     {
5805 	/* <C-Left> and <S-Left> move a word or WORD left */
5806 	if (mod_mask & MOD_MASK_CTRL)
5807 	    cap->arg = 1;
5808 	nv_bck_word(cap);
5809 	return;
5810     }
5811 
5812     cap->oap->motion_type = MCHAR;
5813     cap->oap->inclusive = FALSE;
5814     for (n = cap->count1; n > 0; --n)
5815     {
5816 	if (oneleft() == FAIL)
5817 	{
5818 	    /* <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
5819 	     *		 'h' wraps to previous line if 'whichwrap' has 'h'.
5820 	     *	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
5821 	     */
5822 	    if (       (((cap->cmdchar == K_BS
5823 				|| cap->cmdchar == Ctrl_H)
5824 			    && vim_strchr(p_ww, 'b') != NULL)
5825 			|| (cap->cmdchar == 'h'
5826 			    && vim_strchr(p_ww, 'h') != NULL)
5827 			|| (cap->cmdchar == K_LEFT
5828 			    && vim_strchr(p_ww, '<') != NULL))
5829 		    && curwin->w_cursor.lnum > 1)
5830 	    {
5831 		--(curwin->w_cursor.lnum);
5832 		coladvance((colnr_T)MAXCOL);
5833 		curwin->w_set_curswant = TRUE;
5834 
5835 		/* When the NL before the first char has to be deleted we
5836 		 * put the cursor on the NUL after the previous line.
5837 		 * This is a very special case, be careful!
5838 		 * don't adjust op_end now, otherwise it won't work */
5839 		if (	   (cap->oap->op_type == OP_DELETE
5840 			    || cap->oap->op_type == OP_CHANGE)
5841 			&& !lineempty(curwin->w_cursor.lnum))
5842 		{
5843 		    ++curwin->w_cursor.col;
5844 		    cap->retval |= CA_NO_ADJ_OP_END;
5845 		}
5846 		continue;
5847 	    }
5848 	    /* Only beep and flush if not moved at all */
5849 	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
5850 		beep_flush();
5851 	    break;
5852 	}
5853     }
5854 #ifdef FEAT_FOLDING
5855     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5856 					       && cap->oap->op_type == OP_NOP)
5857 	foldOpenCursor();
5858 #endif
5859 }
5860 
5861 /*
5862  * Cursor up commands.
5863  * cap->arg is TRUE for "-": Move cursor to first non-blank.
5864  */
5865     static void
5866 nv_up(cap)
5867     cmdarg_T	*cap;
5868 {
5869     if (mod_mask & MOD_MASK_SHIFT)
5870     {
5871 	/* <S-Up> is page up */
5872 	cap->arg = BACKWARD;
5873 	nv_page(cap);
5874     }
5875     else
5876     {
5877 	cap->oap->motion_type = MLINE;
5878 	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5879 	    clearopbeep(cap->oap);
5880 	else if (cap->arg)
5881 	    beginline(BL_WHITE | BL_FIX);
5882     }
5883 }
5884 
5885 /*
5886  * Cursor down commands.
5887  * cap->arg is TRUE for CR and "+": Move cursor to first non-blank.
5888  */
5889     static void
5890 nv_down(cap)
5891     cmdarg_T	*cap;
5892 {
5893     if (mod_mask & MOD_MASK_SHIFT)
5894     {
5895 	/* <S-Down> is page down */
5896 	cap->arg = FORWARD;
5897 	nv_page(cap);
5898     }
5899     else
5900 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5901     /* In a quickfix window a <CR> jumps to the error under the cursor. */
5902     if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
5903 	if (curwin->w_llist_ref == NULL)
5904 	    do_cmdline_cmd((char_u *)".cc");	/* quickfix window */
5905 	else
5906 	    do_cmdline_cmd((char_u *)".ll");	/* location list window */
5907     else
5908 #endif
5909     {
5910 #ifdef FEAT_CMDWIN
5911 	/* In the cmdline window a <CR> executes the command. */
5912 	if (cmdwin_type != 0 && cap->cmdchar == CAR)
5913 	    cmdwin_result = CAR;
5914 	else
5915 #endif
5916 	{
5917 	    cap->oap->motion_type = MLINE;
5918 	    if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5919 		clearopbeep(cap->oap);
5920 	    else if (cap->arg)
5921 		beginline(BL_WHITE | BL_FIX);
5922 	}
5923     }
5924 }
5925 
5926 #ifdef FEAT_SEARCHPATH
5927 /*
5928  * Grab the file name under the cursor and edit it.
5929  */
5930     static void
5931 nv_gotofile(cap)
5932     cmdarg_T	*cap;
5933 {
5934     char_u	*ptr;
5935     linenr_T	lnum = -1;
5936 
5937     if (text_locked())
5938     {
5939 	clearopbeep(cap->oap);
5940 	text_locked_msg();
5941 	return;
5942     }
5943 #ifdef FEAT_AUTOCMD
5944     if (curbuf_locked())
5945     {
5946 	clearop(cap->oap);
5947 	return;
5948     }
5949 #endif
5950 
5951     ptr = grab_file_name(cap->count1, &lnum);
5952 
5953     if (ptr != NULL)
5954     {
5955 	/* do autowrite if necessary */
5956 	if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !P_HID(curbuf))
5957 	    autowrite(curbuf, FALSE);
5958 	setpcmark();
5959 	(void)do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
5960 					       P_HID(curbuf) ? ECMD_HIDE : 0);
5961 	if (cap->nchar == 'F' && lnum >= 0)
5962 	{
5963 	    curwin->w_cursor.lnum = lnum;
5964 	    check_cursor_lnum();
5965 	    beginline(BL_SOL | BL_FIX);
5966 	}
5967 	vim_free(ptr);
5968     }
5969     else
5970 	clearop(cap->oap);
5971 }
5972 #endif
5973 
5974 /*
5975  * <End> command: to end of current line or last line.
5976  */
5977     static void
5978 nv_end(cap)
5979     cmdarg_T	*cap;
5980 {
5981     if (cap->arg || (mod_mask & MOD_MASK_CTRL))	/* CTRL-END = goto last line */
5982     {
5983 	cap->arg = TRUE;
5984 	nv_goto(cap);
5985 	cap->count1 = 1;		/* to end of current line */
5986     }
5987     nv_dollar(cap);
5988 }
5989 
5990 /*
5991  * Handle the "$" command.
5992  */
5993     static void
5994 nv_dollar(cap)
5995     cmdarg_T	*cap;
5996 {
5997     cap->oap->motion_type = MCHAR;
5998     cap->oap->inclusive = TRUE;
5999 #ifdef FEAT_VIRTUALEDIT
6000     /* In virtual mode when off the edge of a line and an operator
6001      * is pending (whew!) keep the cursor where it is.
6002      * Otherwise, send it to the end of the line. */
6003     if (!virtual_active() || gchar_cursor() != NUL
6004 					       || cap->oap->op_type == OP_NOP)
6005 #endif
6006 	curwin->w_curswant = MAXCOL;	/* so we stay at the end */
6007     if (cursor_down((long)(cap->count1 - 1),
6008 					 cap->oap->op_type == OP_NOP) == FAIL)
6009 	clearopbeep(cap->oap);
6010 #ifdef FEAT_FOLDING
6011     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6012 	foldOpenCursor();
6013 #endif
6014 }
6015 
6016 /*
6017  * Implementation of '?' and '/' commands.
6018  * If cap->arg is TRUE don't set PC mark.
6019  */
6020     static void
6021 nv_search(cap)
6022     cmdarg_T	    *cap;
6023 {
6024     oparg_T	*oap = cap->oap;
6025 
6026     if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
6027     {
6028 	/* Translate "g??" to "g?g?" */
6029 	cap->cmdchar = 'g';
6030 	cap->nchar = '?';
6031 	nv_operator(cap);
6032 	return;
6033     }
6034 
6035     cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0);
6036 
6037     if (cap->searchbuf == NULL)
6038     {
6039 	clearop(oap);
6040 	return;
6041     }
6042 
6043     normal_search(cap, cap->cmdchar, cap->searchbuf,
6044 						(cap->arg ? 0 : SEARCH_MARK));
6045 }
6046 
6047 /*
6048  * Handle "N" and "n" commands.
6049  * cap->arg is SEARCH_REV for "N", 0 for "n".
6050  */
6051     static void
6052 nv_next(cap)
6053     cmdarg_T	*cap;
6054 {
6055     normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
6056 }
6057 
6058 /*
6059  * Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
6060  * Uses only cap->count1 and cap->oap from "cap".
6061  */
6062     static void
6063 normal_search(cap, dir, pat, opt)
6064     cmdarg_T	*cap;
6065     int		dir;
6066     char_u	*pat;
6067     int		opt;		/* extra flags for do_search() */
6068 {
6069     int		i;
6070 
6071     cap->oap->motion_type = MCHAR;
6072     cap->oap->inclusive = FALSE;
6073     cap->oap->use_reg_one = TRUE;
6074     curwin->w_set_curswant = TRUE;
6075 
6076     i = do_search(cap->oap, dir, pat, cap->count1,
6077 				 opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG);
6078     if (i == 0)
6079 	clearop(cap->oap);
6080     else
6081     {
6082 	if (i == 2)
6083 	    cap->oap->motion_type = MLINE;
6084 #ifdef FEAT_VIRTUALEDIT
6085 	curwin->w_cursor.coladd = 0;
6086 #endif
6087 #ifdef FEAT_FOLDING
6088 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6089 	    foldOpenCursor();
6090 #endif
6091     }
6092 
6093     /* "/$" will put the cursor after the end of the line, may need to
6094      * correct that here */
6095     check_cursor();
6096 }
6097 
6098 /*
6099  * Character search commands.
6100  * cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', TRUE for
6101  * ',' and FALSE for ';'.
6102  * cap->nchar is NUL for ',' and ';' (repeat the search)
6103  */
6104     static void
6105 nv_csearch(cap)
6106     cmdarg_T	*cap;
6107 {
6108     int		t_cmd;
6109 
6110     if (cap->cmdchar == 't' || cap->cmdchar == 'T')
6111 	t_cmd = TRUE;
6112     else
6113 	t_cmd = FALSE;
6114 
6115     cap->oap->motion_type = MCHAR;
6116     if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
6117 	clearopbeep(cap->oap);
6118     else
6119     {
6120 	curwin->w_set_curswant = TRUE;
6121 #ifdef FEAT_VIRTUALEDIT
6122 	/* Include a Tab for "tx" and for "dfx". */
6123 	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
6124 		&& (t_cmd || cap->oap->op_type != OP_NOP))
6125 	{
6126 	    colnr_T	scol, ecol;
6127 
6128 	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
6129 	    curwin->w_cursor.coladd = ecol - scol;
6130 	}
6131 	else
6132 	    curwin->w_cursor.coladd = 0;
6133 #endif
6134 #ifdef FEAT_VISUAL
6135 	adjust_for_sel(cap);
6136 #endif
6137 #ifdef FEAT_FOLDING
6138 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6139 	    foldOpenCursor();
6140 #endif
6141     }
6142 }
6143 
6144 /*
6145  * "[" and "]" commands.
6146  * cap->arg is BACKWARD for "[" and FORWARD for "]".
6147  */
6148     static void
6149 nv_brackets(cap)
6150     cmdarg_T	*cap;
6151 {
6152     pos_T	new_pos;
6153     pos_T	prev_pos;
6154     pos_T	*pos = NULL;	    /* init for GCC */
6155     pos_T	old_pos;	    /* cursor position before command */
6156     int		flag;
6157     long	n;
6158     int		findc;
6159     int		c;
6160 
6161     cap->oap->motion_type = MCHAR;
6162     cap->oap->inclusive = FALSE;
6163     old_pos = curwin->w_cursor;
6164 #ifdef FEAT_VIRTUALEDIT
6165     curwin->w_cursor.coladd = 0;	    /* TODO: don't do this for an error. */
6166 #endif
6167 
6168 #ifdef FEAT_SEARCHPATH
6169     /*
6170      * "[f" or "]f" : Edit file under the cursor (same as "gf")
6171      */
6172     if (cap->nchar == 'f')
6173 	nv_gotofile(cap);
6174     else
6175 #endif
6176 
6177 #ifdef FEAT_FIND_ID
6178     /*
6179      * Find the occurence(s) of the identifier or define under cursor
6180      * in current and included files or jump to the first occurence.
6181      *
6182      *			search	     list	    jump
6183      *		      fwd   bwd    fwd	 bwd	 fwd	bwd
6184      * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
6185      * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
6186      */
6187     if (vim_strchr((char_u *)
6188 #ifdef EBCDIC
6189 		"iI\005dD\067",
6190 #else
6191 		"iI\011dD\004",
6192 #endif
6193 		cap->nchar) != NULL)
6194     {
6195 	char_u	*ptr;
6196 	int	len;
6197 
6198 	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
6199 	    clearop(cap->oap);
6200 	else
6201 	{
6202 	    find_pattern_in_path(ptr, 0, len, TRUE,
6203 		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
6204 		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
6205 		cap->count1,
6206 		isupper(cap->nchar) ? ACTION_SHOW_ALL :
6207 			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
6208 		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
6209 		(linenr_T)MAXLNUM);
6210 	    curwin->w_set_curswant = TRUE;
6211 	}
6212     }
6213     else
6214 #endif
6215 
6216     /*
6217      * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
6218      * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
6219      * "[/", "[*", "]/", "]*": go to Nth comment start/end.
6220      * "[m" or "]m" search for prev/next start of (Java) method.
6221      * "[M" or "]M" search for prev/next end of (Java) method.
6222      */
6223     if (  (cap->cmdchar == '['
6224 		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
6225 	    || (cap->cmdchar == ']'
6226 		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
6227     {
6228 	if (cap->nchar == '*')
6229 	    cap->nchar = '/';
6230 	new_pos.lnum = 0;
6231 	prev_pos.lnum = 0;
6232 	if (cap->nchar == 'm' || cap->nchar == 'M')
6233 	{
6234 	    if (cap->cmdchar == '[')
6235 		findc = '{';
6236 	    else
6237 		findc = '}';
6238 	    n = 9999;
6239 	}
6240 	else
6241 	{
6242 	    findc = cap->nchar;
6243 	    n = cap->count1;
6244 	}
6245 	for ( ; n > 0; --n)
6246 	{
6247 	    if ((pos = findmatchlimit(cap->oap, findc,
6248 		(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
6249 	    {
6250 		if (new_pos.lnum == 0)	/* nothing found */
6251 		{
6252 		    if (cap->nchar != 'm' && cap->nchar != 'M')
6253 			clearopbeep(cap->oap);
6254 		}
6255 		else
6256 		    pos = &new_pos;	/* use last one found */
6257 		break;
6258 	    }
6259 	    prev_pos = new_pos;
6260 	    curwin->w_cursor = *pos;
6261 	    new_pos = *pos;
6262 	}
6263 	curwin->w_cursor = old_pos;
6264 
6265 	/*
6266 	 * Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
6267 	 * brought us to the match for "[m" and "]M" when inside a method.
6268 	 * Try finding the '{' or '}' we want to be at.
6269 	 * Also repeat for the given count.
6270 	 */
6271 	if (cap->nchar == 'm' || cap->nchar == 'M')
6272 	{
6273 	    /* norm is TRUE for "]M" and "[m" */
6274 	    int	    norm = ((findc == '{') == (cap->nchar == 'm'));
6275 
6276 	    n = cap->count1;
6277 	    /* found a match: we were inside a method */
6278 	    if (prev_pos.lnum != 0)
6279 	    {
6280 		pos = &prev_pos;
6281 		curwin->w_cursor = prev_pos;
6282 		if (norm)
6283 		    --n;
6284 	    }
6285 	    else
6286 		pos = NULL;
6287 	    while (n > 0)
6288 	    {
6289 		for (;;)
6290 		{
6291 		    if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
6292 		    {
6293 			/* if not found anything, that's an error */
6294 			if (pos == NULL)
6295 			    clearopbeep(cap->oap);
6296 			n = 0;
6297 			break;
6298 		    }
6299 		    c = gchar_cursor();
6300 		    if (c == '{' || c == '}')
6301 		    {
6302 			/* Must have found end/start of class: use it.
6303 			 * Or found the place to be at. */
6304 			if ((c == findc && norm) || (n == 1 && !norm))
6305 			{
6306 			    new_pos = curwin->w_cursor;
6307 			    pos = &new_pos;
6308 			    n = 0;
6309 			}
6310 			/* if no match found at all, we started outside of the
6311 			 * class and we're inside now.  Just go on. */
6312 			else if (new_pos.lnum == 0)
6313 			{
6314 			    new_pos = curwin->w_cursor;
6315 			    pos = &new_pos;
6316 			}
6317 			/* found start/end of other method: go to match */
6318 			else if ((pos = findmatchlimit(cap->oap, findc,
6319 			    (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
6320 								  0)) == NULL)
6321 			    n = 0;
6322 			else
6323 			    curwin->w_cursor = *pos;
6324 			break;
6325 		    }
6326 		}
6327 		--n;
6328 	    }
6329 	    curwin->w_cursor = old_pos;
6330 	    if (pos == NULL && new_pos.lnum != 0)
6331 		clearopbeep(cap->oap);
6332 	}
6333 	if (pos != NULL)
6334 	{
6335 	    setpcmark();
6336 	    curwin->w_cursor = *pos;
6337 	    curwin->w_set_curswant = TRUE;
6338 #ifdef FEAT_FOLDING
6339 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped
6340 					       && cap->oap->op_type == OP_NOP)
6341 		foldOpenCursor();
6342 #endif
6343 	}
6344     }
6345 
6346     /*
6347      * "[[", "[]", "]]" and "][": move to start or end of function
6348      */
6349     else if (cap->nchar == '[' || cap->nchar == ']')
6350     {
6351 	if (cap->nchar == cap->cmdchar)		    /* "]]" or "[[" */
6352 	    flag = '{';
6353 	else
6354 	    flag = '}';		    /* "][" or "[]" */
6355 
6356 	curwin->w_set_curswant = TRUE;
6357 	/*
6358 	 * Imitate strange Vi behaviour: When using "]]" with an operator
6359 	 * we also stop at '}'.
6360 	 */
6361 	if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
6362 	      (cap->oap->op_type != OP_NOP
6363 				      && cap->arg == FORWARD && flag == '{')))
6364 	    clearopbeep(cap->oap);
6365 	else
6366 	{
6367 	    if (cap->oap->op_type == OP_NOP)
6368 		beginline(BL_WHITE | BL_FIX);
6369 #ifdef FEAT_FOLDING
6370 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6371 		foldOpenCursor();
6372 #endif
6373 	}
6374     }
6375 
6376     /*
6377      * "[p", "[P", "]P" and "]p": put with indent adjustment
6378      */
6379     else if (cap->nchar == 'p' || cap->nchar == 'P')
6380     {
6381 	if (!checkclearopq(cap->oap))
6382 	{
6383 	    prep_redo_cmd(cap);
6384 	    do_put(cap->oap->regname,
6385 	      (cap->cmdchar == ']' && cap->nchar == 'p') ? FORWARD : BACKWARD,
6386 						  cap->count1, PUT_FIXINDENT);
6387 	}
6388     }
6389 
6390     /*
6391      * "['", "[`", "]'" and "]`": jump to next mark
6392      */
6393     else if (cap->nchar == '\'' || cap->nchar == '`')
6394     {
6395 	pos = &curwin->w_cursor;
6396 	for (n = cap->count1; n > 0; --n)
6397 	{
6398 	    prev_pos = *pos;
6399 	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
6400 							  cap->nchar == '\'');
6401 	    if (pos == NULL)
6402 		break;
6403 	}
6404 	if (pos == NULL)
6405 	    pos = &prev_pos;
6406 	nv_cursormark(cap, cap->nchar == '\'', pos);
6407     }
6408 
6409 #ifdef FEAT_MOUSE
6410     /*
6411      * [ or ] followed by a middle mouse click: put selected text with
6412      * indent adjustment.  Any other button just does as usual.
6413      */
6414     else if (cap->nchar >= K_LEFTMOUSE && cap->nchar <= K_RIGHTRELEASE)
6415     {
6416 	(void)do_mouse(cap->oap, cap->nchar,
6417 		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
6418 		       cap->count1, PUT_FIXINDENT);
6419     }
6420 #endif /* FEAT_MOUSE */
6421 
6422 #ifdef FEAT_FOLDING
6423     /*
6424      * "[z" and "]z": move to start or end of open fold.
6425      */
6426     else if (cap->nchar == 'z')
6427     {
6428 	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6429 							 cap->count1) == FAIL)
6430 	    clearopbeep(cap->oap);
6431     }
6432 #endif
6433 
6434 #ifdef FEAT_DIFF
6435     /*
6436      * "[c" and "]c": move to next or previous diff-change.
6437      */
6438     else if (cap->nchar == 'c')
6439     {
6440 	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
6441 							 cap->count1) == FAIL)
6442 	    clearopbeep(cap->oap);
6443     }
6444 #endif
6445 
6446 #ifdef FEAT_SPELL
6447     /*
6448      * "[s", "[S", "]s" and "]S": move to next spell error.
6449      */
6450     else if (cap->nchar == 's' || cap->nchar == 'S')
6451     {
6452 	setpcmark();
6453 	for (n = 0; n < cap->count1; ++n)
6454 	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6455 			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
6456 	    {
6457 		clearopbeep(cap->oap);
6458 		break;
6459 	    }
6460 # ifdef FEAT_FOLDING
6461 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6462 	    foldOpenCursor();
6463 # endif
6464     }
6465 #endif
6466 
6467     /* Not a valid cap->nchar. */
6468     else
6469 	clearopbeep(cap->oap);
6470 }
6471 
6472 /*
6473  * Handle Normal mode "%" command.
6474  */
6475     static void
6476 nv_percent(cap)
6477     cmdarg_T	*cap;
6478 {
6479     pos_T	*pos;
6480 #ifdef FEAT_FOLDING
6481     linenr_T	lnum = curwin->w_cursor.lnum;
6482 #endif
6483 
6484     cap->oap->inclusive = TRUE;
6485     if (cap->count0)	    /* {cnt}% : goto {cnt} percentage in file */
6486     {
6487 	if (cap->count0 > 100)
6488 	    clearopbeep(cap->oap);
6489 	else
6490 	{
6491 	    cap->oap->motion_type = MLINE;
6492 	    setpcmark();
6493 	    /* Round up, so CTRL-G will give same value.  Watch out for a
6494 	     * large line count, the line number must not go negative! */
6495 	    if (curbuf->b_ml.ml_line_count > 1000000)
6496 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99L)
6497 							 / 100L * cap->count0;
6498 	    else
6499 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
6500 						    cap->count0 + 99L) / 100L;
6501 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
6502 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6503 	    beginline(BL_SOL | BL_FIX);
6504 	}
6505     }
6506     else		    /* "%" : go to matching paren */
6507     {
6508 	cap->oap->motion_type = MCHAR;
6509 	cap->oap->use_reg_one = TRUE;
6510 	if ((pos = findmatch(cap->oap, NUL)) == NULL)
6511 	    clearopbeep(cap->oap);
6512 	else
6513 	{
6514 	    setpcmark();
6515 	    curwin->w_cursor = *pos;
6516 	    curwin->w_set_curswant = TRUE;
6517 #ifdef FEAT_VIRTUALEDIT
6518 	    curwin->w_cursor.coladd = 0;
6519 #endif
6520 #ifdef FEAT_VISUAL
6521 	    adjust_for_sel(cap);
6522 #endif
6523 	}
6524     }
6525 #ifdef FEAT_FOLDING
6526     if (cap->oap->op_type == OP_NOP
6527 	    && lnum != curwin->w_cursor.lnum
6528 	    && (fdo_flags & FDO_PERCENT)
6529 	    && KeyTyped)
6530 	foldOpenCursor();
6531 #endif
6532 }
6533 
6534 /*
6535  * Handle "(" and ")" commands.
6536  * cap->arg is BACKWARD for "(" and FORWARD for ")".
6537  */
6538     static void
6539 nv_brace(cap)
6540     cmdarg_T	*cap;
6541 {
6542     cap->oap->motion_type = MCHAR;
6543     cap->oap->use_reg_one = TRUE;
6544     /* The motion used to be inclusive for "(", but that is not what Vi does. */
6545     cap->oap->inclusive = FALSE;
6546     curwin->w_set_curswant = TRUE;
6547 
6548     if (findsent(cap->arg, cap->count1) == FAIL)
6549 	clearopbeep(cap->oap);
6550     else
6551     {
6552 #ifdef FEAT_VIRTUALEDIT
6553 	curwin->w_cursor.coladd = 0;
6554 #endif
6555 #ifdef FEAT_FOLDING
6556 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6557 	    foldOpenCursor();
6558 #endif
6559     }
6560 }
6561 
6562 /*
6563  * "m" command: Mark a position.
6564  */
6565     static void
6566 nv_mark(cap)
6567     cmdarg_T	*cap;
6568 {
6569     if (!checkclearop(cap->oap))
6570     {
6571 	if (setmark(cap->nchar) == FAIL)
6572 	    clearopbeep(cap->oap);
6573     }
6574 }
6575 
6576 /*
6577  * "{" and "}" commands.
6578  * cmd->arg is BACKWARD for "{" and FORWARD for "}".
6579  */
6580     static void
6581 nv_findpar(cap)
6582     cmdarg_T	*cap;
6583 {
6584     cap->oap->motion_type = MCHAR;
6585     cap->oap->inclusive = FALSE;
6586     cap->oap->use_reg_one = TRUE;
6587     curwin->w_set_curswant = TRUE;
6588     if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, FALSE))
6589 	clearopbeep(cap->oap);
6590     else
6591     {
6592 #ifdef FEAT_VIRTUALEDIT
6593 	curwin->w_cursor.coladd = 0;
6594 #endif
6595 #ifdef FEAT_FOLDING
6596 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6597 	    foldOpenCursor();
6598 #endif
6599     }
6600 }
6601 
6602 /*
6603  * "u" command: Undo or make lower case.
6604  */
6605     static void
6606 nv_undo(cap)
6607     cmdarg_T	*cap;
6608 {
6609     if (cap->oap->op_type == OP_LOWER
6610 #ifdef FEAT_VISUAL
6611 	    || VIsual_active
6612 #endif
6613 	    )
6614     {
6615 	/* translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu" */
6616 	cap->cmdchar = 'g';
6617 	cap->nchar = 'u';
6618 	nv_operator(cap);
6619     }
6620     else
6621 	nv_kundo(cap);
6622 }
6623 
6624 /*
6625  * <Undo> command.
6626  */
6627     static void
6628 nv_kundo(cap)
6629     cmdarg_T	*cap;
6630 {
6631     if (!checkclearopq(cap->oap))
6632     {
6633 	u_undo((int)cap->count1);
6634 	curwin->w_set_curswant = TRUE;
6635     }
6636 }
6637 
6638 /*
6639  * Handle the "r" command.
6640  */
6641     static void
6642 nv_replace(cap)
6643     cmdarg_T	*cap;
6644 {
6645     char_u	*ptr;
6646     int		had_ctrl_v;
6647     long	n;
6648 
6649     if (checkclearop(cap->oap))
6650 	return;
6651 
6652     /* get another character */
6653     if (cap->nchar == Ctrl_V)
6654     {
6655 	had_ctrl_v = Ctrl_V;
6656 	cap->nchar = get_literal();
6657 	/* Don't redo a multibyte character with CTRL-V. */
6658 	if (cap->nchar > DEL)
6659 	    had_ctrl_v = NUL;
6660     }
6661     else
6662 	had_ctrl_v = NUL;
6663 
6664 #ifdef FEAT_VISUAL
6665     /* Visual mode "r" */
6666     if (VIsual_active)
6667     {
6668 	nv_operator(cap);
6669 	return;
6670     }
6671 #endif
6672 
6673 #ifdef FEAT_VIRTUALEDIT
6674     /* Break tabs, etc. */
6675     if (virtual_active())
6676     {
6677 	if (u_save_cursor() == FAIL)
6678 	    return;
6679 	if (gchar_cursor() == NUL)
6680 	{
6681 	    /* Add extra space and put the cursor on the first one. */
6682 	    coladvance_force((colnr_T)(getviscol() + cap->count1));
6683 	    curwin->w_cursor.col -= cap->count1;
6684 	}
6685 	else if (gchar_cursor() == TAB)
6686 	    coladvance_force(getviscol());
6687     }
6688 #endif
6689 
6690     /*
6691      * Check for a special key or not enough characters to replace.
6692      */
6693     ptr = ml_get_cursor();
6694     if (IS_SPECIAL(cap->nchar) || STRLEN(ptr) < (unsigned)cap->count1
6695 #ifdef FEAT_MBYTE
6696 	    || (has_mbyte && mb_charlen(ptr) < cap->count1)
6697 #endif
6698 	    )
6699     {
6700 	clearopbeep(cap->oap);
6701 	return;
6702     }
6703 
6704     /*
6705      * Replacing with a TAB is done by edit() when it is complicated because
6706      * 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
6707      * Other characters are done below to avoid problems with things like
6708      * CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
6709      */
6710     if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
6711     {
6712 	stuffnumReadbuff(cap->count1);
6713 	stuffcharReadbuff('R');
6714 	stuffcharReadbuff('\t');
6715 	stuffcharReadbuff(ESC);
6716 	return;
6717     }
6718 
6719     /* save line for undo */
6720     if (u_save_cursor() == FAIL)
6721 	return;
6722 
6723     if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
6724     {
6725 	/*
6726 	 * Replace character(s) by a single newline.
6727 	 * Strange vi behaviour: Only one newline is inserted.
6728 	 * Delete the characters here.
6729 	 * Insert the newline with an insert command, takes care of
6730 	 * autoindent.	The insert command depends on being on the last
6731 	 * character of a line or not.
6732 	 */
6733 #ifdef FEAT_MBYTE
6734 	(void)del_chars(cap->count1, FALSE);	/* delete the characters */
6735 #else
6736 	(void)del_bytes(cap->count1, FALSE, FALSE); /* delete the characters */
6737 #endif
6738 	stuffcharReadbuff('\r');
6739 	stuffcharReadbuff(ESC);
6740 
6741 	/* Give 'r' to edit(), to get the redo command right. */
6742 	invoke_edit(cap, TRUE, 'r', FALSE);
6743     }
6744     else
6745     {
6746 	prep_redo(cap->oap->regname, cap->count1,
6747 				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);
6748 
6749 	curbuf->b_op_start = curwin->w_cursor;
6750 #ifdef FEAT_MBYTE
6751 	if (has_mbyte)
6752 	{
6753 	    int		old_State = State;
6754 
6755 	    if (cap->ncharC1 != 0)
6756 		AppendCharToRedobuff(cap->ncharC1);
6757 	    if (cap->ncharC2 != 0)
6758 		AppendCharToRedobuff(cap->ncharC2);
6759 
6760 	    /* This is slow, but it handles replacing a single-byte with a
6761 	     * multi-byte and the other way around.  Also handles adding
6762 	     * composing characters for utf-8. */
6763 	    for (n = cap->count1; n > 0; --n)
6764 	    {
6765 		State = REPLACE;
6766 		ins_char(cap->nchar);
6767 		State = old_State;
6768 		if (cap->ncharC1 != 0)
6769 		    ins_char(cap->ncharC1);
6770 		if (cap->ncharC2 != 0)
6771 		    ins_char(cap->ncharC2);
6772 	    }
6773 	}
6774 	else
6775 #endif
6776 	{
6777 	    /*
6778 	     * Replace the characters within one line.
6779 	     */
6780 	    for (n = cap->count1; n > 0; --n)
6781 	    {
6782 		/*
6783 		 * Get ptr again, because u_save and/or showmatch() will have
6784 		 * released the line.  At the same time we let know that the
6785 		 * line will be changed.
6786 		 */
6787 		ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
6788 		ptr[curwin->w_cursor.col] = cap->nchar;
6789 		if (p_sm && msg_silent == 0)
6790 		    showmatch(cap->nchar);
6791 		++curwin->w_cursor.col;
6792 	    }
6793 #ifdef FEAT_NETBEANS_INTG
6794 	    if (usingNetbeans)
6795 	    {
6796 		colnr_T start = (colnr_T)(curwin->w_cursor.col - cap->count1);
6797 
6798 		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
6799 							    (long)cap->count1);
6800 		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
6801 					       &ptr[start], (int)cap->count1);
6802 	    }
6803 #endif
6804 
6805 	    /* mark the buffer as changed and prepare for displaying */
6806 	    changed_bytes(curwin->w_cursor.lnum,
6807 			       (colnr_T)(curwin->w_cursor.col - cap->count1));
6808 	}
6809 	--curwin->w_cursor.col;	    /* cursor on the last replaced char */
6810 #ifdef FEAT_MBYTE
6811 	/* if the character on the left of the current cursor is a multi-byte
6812 	 * character, move two characters left */
6813 	if (has_mbyte)
6814 	    mb_adjust_cursor();
6815 #endif
6816 	curbuf->b_op_end = curwin->w_cursor;
6817 	curwin->w_set_curswant = TRUE;
6818 	set_last_insert(cap->nchar);
6819     }
6820 }
6821 
6822 #ifdef FEAT_VISUAL
6823 /*
6824  * 'o': Exchange start and end of Visual area.
6825  * 'O': same, but in block mode exchange left and right corners.
6826  */
6827     static void
6828 v_swap_corners(cmdchar)
6829     int		cmdchar;
6830 {
6831     pos_T	old_cursor;
6832     colnr_T	left, right;
6833 
6834     if (cmdchar == 'O' && VIsual_mode == Ctrl_V)
6835     {
6836 	old_cursor = curwin->w_cursor;
6837 	getvcols(curwin, &old_cursor, &VIsual, &left, &right);
6838 	curwin->w_cursor.lnum = VIsual.lnum;
6839 	coladvance(left);
6840 	VIsual = curwin->w_cursor;
6841 
6842 	curwin->w_cursor.lnum = old_cursor.lnum;
6843 	curwin->w_curswant = right;
6844 	/* 'selection "exclusive" and cursor at right-bottom corner: move it
6845 	 * right one column */
6846 	if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e')
6847 	    ++curwin->w_curswant;
6848 	coladvance(curwin->w_curswant);
6849 	if (curwin->w_cursor.col == old_cursor.col
6850 #ifdef FEAT_VIRTUALEDIT
6851 		&& (!virtual_active()
6852 		    || curwin->w_cursor.coladd == old_cursor.coladd)
6853 #endif
6854 		)
6855 	{
6856 	    curwin->w_cursor.lnum = VIsual.lnum;
6857 	    if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e')
6858 		++right;
6859 	    coladvance(right);
6860 	    VIsual = curwin->w_cursor;
6861 
6862 	    curwin->w_cursor.lnum = old_cursor.lnum;
6863 	    coladvance(left);
6864 	    curwin->w_curswant = left;
6865 	}
6866     }
6867     else
6868     {
6869 	old_cursor = curwin->w_cursor;
6870 	curwin->w_cursor = VIsual;
6871 	VIsual = old_cursor;
6872 	curwin->w_set_curswant = TRUE;
6873     }
6874 }
6875 #endif /* FEAT_VISUAL */
6876 
6877 /*
6878  * "R" (cap->arg is FALSE) and "gR" (cap->arg is TRUE).
6879  */
6880     static void
6881 nv_Replace(cap)
6882     cmdarg_T	    *cap;
6883 {
6884 #ifdef FEAT_VISUAL
6885     if (VIsual_active)		/* "R" is replace lines */
6886     {
6887 	cap->cmdchar = 'c';
6888 	cap->nchar = NUL;
6889 	VIsual_mode = 'V';
6890 	nv_operator(cap);
6891     }
6892     else
6893 #endif
6894 	if (!checkclearopq(cap->oap))
6895     {
6896 	if (!curbuf->b_p_ma)
6897 	    EMSG(_(e_modifiable));
6898 	else
6899 	{
6900 #ifdef FEAT_VIRTUALEDIT
6901 	    if (virtual_active())
6902 		coladvance(getviscol());
6903 #endif
6904 	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
6905 	}
6906     }
6907 }
6908 
6909 #ifdef FEAT_VREPLACE
6910 /*
6911  * "gr".
6912  */
6913     static void
6914 nv_vreplace(cap)
6915     cmdarg_T	*cap;
6916 {
6917 # ifdef FEAT_VISUAL
6918     if (VIsual_active)
6919     {
6920 	cap->cmdchar = 'r';
6921 	cap->nchar = cap->extra_char;
6922 	nv_replace(cap);	/* Do same as "r" in Visual mode for now */
6923     }
6924     else
6925 # endif
6926 	if (!checkclearopq(cap->oap))
6927     {
6928 	if (!curbuf->b_p_ma)
6929 	    EMSG(_(e_modifiable));
6930 	else
6931 	{
6932 	    if (cap->extra_char == Ctrl_V)	/* get another character */
6933 		cap->extra_char = get_literal();
6934 	    stuffcharReadbuff(cap->extra_char);
6935 	    stuffcharReadbuff(ESC);
6936 # ifdef FEAT_VIRTUALEDIT
6937 	    if (virtual_active())
6938 		coladvance(getviscol());
6939 # endif
6940 	    invoke_edit(cap, TRUE, 'v', FALSE);
6941 	}
6942     }
6943 }
6944 #endif
6945 
6946 /*
6947  * Swap case for "~" command, when it does not work like an operator.
6948  */
6949     static void
6950 n_swapchar(cap)
6951     cmdarg_T	*cap;
6952 {
6953     long	n;
6954     pos_T	startpos;
6955     int		did_change = 0;
6956 #ifdef FEAT_NETBEANS_INTG
6957     pos_T	pos;
6958     char_u	*ptr;
6959     int		count;
6960 #endif
6961 
6962     if (checkclearopq(cap->oap))
6963 	return;
6964 
6965     if (lineempty(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
6966     {
6967 	clearopbeep(cap->oap);
6968 	return;
6969     }
6970 
6971     prep_redo_cmd(cap);
6972 
6973     if (u_save_cursor() == FAIL)
6974 	return;
6975 
6976     startpos = curwin->w_cursor;
6977 #ifdef FEAT_NETBEANS_INTG
6978     pos = startpos;
6979 #endif
6980     for (n = cap->count1; n > 0; --n)
6981     {
6982 	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
6983 	inc_cursor();
6984 	if (gchar_cursor() == NUL)
6985 	{
6986 	    if (vim_strchr(p_ww, '~') != NULL
6987 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
6988 	    {
6989 #ifdef FEAT_NETBEANS_INTG
6990 		if (usingNetbeans)
6991 		{
6992 		    if (did_change)
6993 		    {
6994 			ptr = ml_get(pos.lnum);
6995 			count = (int)STRLEN(ptr) - pos.col;
6996 			netbeans_removed(curbuf, pos.lnum, pos.col,
6997 								 (long)count);
6998 			netbeans_inserted(curbuf, pos.lnum, pos.col,
6999 							&ptr[pos.col], count);
7000 		    }
7001 		    pos.col = 0;
7002 		    pos.lnum++;
7003 		}
7004 #endif
7005 		++curwin->w_cursor.lnum;
7006 		curwin->w_cursor.col = 0;
7007 		if (n > 1)
7008 		{
7009 		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
7010 			break;
7011 		    u_clearline();
7012 		}
7013 	    }
7014 	    else
7015 		break;
7016 	}
7017     }
7018 #ifdef FEAT_NETBEANS_INTG
7019     if (did_change && usingNetbeans)
7020     {
7021 	ptr = ml_get(pos.lnum);
7022 	count = curwin->w_cursor.col - pos.col;
7023 	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
7024 	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
7025     }
7026 #endif
7027 
7028 
7029     check_cursor();
7030     curwin->w_set_curswant = TRUE;
7031     if (did_change)
7032     {
7033 	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
7034 									  0L);
7035 	curbuf->b_op_start = startpos;
7036 	curbuf->b_op_end = curwin->w_cursor;
7037 	if (curbuf->b_op_end.col > 0)
7038 	    --curbuf->b_op_end.col;
7039     }
7040 }
7041 
7042 /*
7043  * Move cursor to mark.
7044  */
7045     static void
7046 nv_cursormark(cap, flag, pos)
7047     cmdarg_T	*cap;
7048     int		flag;
7049     pos_T	*pos;
7050 {
7051     if (check_mark(pos) == FAIL)
7052 	clearop(cap->oap);
7053     else
7054     {
7055 	if (cap->cmdchar == '\''
7056 		|| cap->cmdchar == '`'
7057 		|| cap->cmdchar == '['
7058 		|| cap->cmdchar == ']')
7059 	    setpcmark();
7060 	curwin->w_cursor = *pos;
7061 	if (flag)
7062 	    beginline(BL_WHITE | BL_FIX);
7063 	else
7064 	    check_cursor();
7065     }
7066     cap->oap->motion_type = flag ? MLINE : MCHAR;
7067     if (cap->cmdchar == '`')
7068 	cap->oap->use_reg_one = TRUE;
7069     cap->oap->inclusive = FALSE;		/* ignored if not MCHAR */
7070     curwin->w_set_curswant = TRUE;
7071 }
7072 
7073 #ifdef FEAT_VISUAL
7074 /*
7075  * Handle commands that are operators in Visual mode.
7076  */
7077     static void
7078 v_visop(cap)
7079     cmdarg_T	*cap;
7080 {
7081     static char_u trans[] = "YyDdCcxdXdAAIIrr";
7082 
7083     /* Uppercase means linewise, except in block mode, then "D" deletes till
7084      * the end of the line, and "C" replaces til EOL */
7085     if (isupper(cap->cmdchar))
7086     {
7087 	if (VIsual_mode != Ctrl_V)
7088 	    VIsual_mode = 'V';
7089 	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
7090 	    curwin->w_curswant = MAXCOL;
7091     }
7092     cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
7093     nv_operator(cap);
7094 }
7095 #endif
7096 
7097 /*
7098  * "s" and "S" commands.
7099  */
7100     static void
7101 nv_subst(cap)
7102     cmdarg_T	*cap;
7103 {
7104 #ifdef FEAT_VISUAL
7105     if (VIsual_active)	/* "vs" and "vS" are the same as "vc" */
7106     {
7107 	if (cap->cmdchar == 'S')
7108 	    VIsual_mode = 'V';
7109 	cap->cmdchar = 'c';
7110 	nv_operator(cap);
7111     }
7112     else
7113 #endif
7114 	nv_optrans(cap);
7115 }
7116 
7117 /*
7118  * Abbreviated commands.
7119  */
7120     static void
7121 nv_abbrev(cap)
7122     cmdarg_T	*cap;
7123 {
7124     if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
7125 	cap->cmdchar = 'x';		/* DEL key behaves like 'x' */
7126 
7127 #ifdef FEAT_VISUAL
7128     /* in Visual mode these commands are operators */
7129     if (VIsual_active)
7130 	v_visop(cap);
7131     else
7132 #endif
7133 	nv_optrans(cap);
7134 }
7135 
7136 /*
7137  * Translate a command into another command.
7138  */
7139     static void
7140 nv_optrans(cap)
7141     cmdarg_T	*cap;
7142 {
7143     static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
7144 			      (char_u *)"d$", (char_u *)"c$",
7145 			      (char_u *)"cl", (char_u *)"cc",
7146 			      (char_u *)"yy", (char_u *)":s\r"};
7147     static char_u *str = (char_u *)"xXDCsSY&";
7148 
7149     if (!checkclearopq(cap->oap))
7150     {
7151 	/* In Vi "2D" doesn't delete the next line.  Can't translate it
7152 	 * either, because "2." should also not use the count. */
7153 	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
7154 	{
7155 	    cap->oap->start = curwin->w_cursor;
7156 	    cap->oap->op_type = OP_DELETE;
7157 	    cap->count1 = 1;
7158 	    nv_dollar(cap);
7159 	    finish_op = TRUE;
7160 	    ResetRedobuff();
7161 	    AppendCharToRedobuff('D');
7162 	}
7163 	else
7164 	{
7165 	    if (cap->count0)
7166 		stuffnumReadbuff(cap->count0);
7167 	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
7168 	}
7169     }
7170     cap->opcount = 0;
7171 }
7172 
7173 /*
7174  * "'" and "`" commands.  Also for "g'" and "g`".
7175  * cap->arg is TRUE for "'" and "g'".
7176  */
7177     static void
7178 nv_gomark(cap)
7179     cmdarg_T	*cap;
7180 {
7181     pos_T	*pos;
7182     int		c;
7183 #ifdef FEAT_FOLDING
7184     linenr_T	lnum = curwin->w_cursor.lnum;
7185     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7186 #endif
7187 
7188     if (cap->cmdchar == 'g')
7189 	c = cap->extra_char;
7190     else
7191 	c = cap->nchar;
7192     pos = getmark(c, (cap->oap->op_type == OP_NOP));
7193     if (pos == (pos_T *)-1)	    /* jumped to other file */
7194     {
7195 	if (cap->arg)
7196 	{
7197 	    check_cursor_lnum();
7198 	    beginline(BL_WHITE | BL_FIX);
7199 	}
7200 	else
7201 	    check_cursor();
7202     }
7203     else
7204 	nv_cursormark(cap, cap->arg, pos);
7205 
7206 #ifdef FEAT_VIRTUALEDIT
7207     /* May need to clear the coladd that a mark includes. */
7208     if (!virtual_active())
7209 	curwin->w_cursor.coladd = 0;
7210 #endif
7211 #ifdef FEAT_FOLDING
7212     if (cap->oap->op_type == OP_NOP
7213 	    && (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
7214 	    && (fdo_flags & FDO_MARK)
7215 	    && old_KeyTyped)
7216 	foldOpenCursor();
7217 #endif
7218 }
7219 
7220 /*
7221  * Handle CTRL-O, CTRL-I, "g;" and "g," commands.
7222  */
7223     static void
7224 nv_pcmark(cap)
7225     cmdarg_T	*cap;
7226 {
7227 #ifdef FEAT_JUMPLIST
7228     pos_T	*pos;
7229 # ifdef FEAT_FOLDING
7230     linenr_T	lnum = curwin->w_cursor.lnum;
7231     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7232 # endif
7233 
7234     if (!checkclearopq(cap->oap))
7235     {
7236 	if (cap->cmdchar == 'g')
7237 	    pos = movechangelist((int)cap->count1);
7238 	else
7239 	    pos = movemark((int)cap->count1);
7240 	if (pos == (pos_T *)-1)		/* jump to other file */
7241 	{
7242 	    curwin->w_set_curswant = TRUE;
7243 	    check_cursor();
7244 	}
7245 	else if (pos != NULL)		    /* can jump */
7246 	    nv_cursormark(cap, FALSE, pos);
7247 	else if (cap->cmdchar == 'g')
7248 	{
7249 	    if (curbuf->b_changelistlen == 0)
7250 		EMSG(_("E664: changelist is empty"));
7251 	    else if (cap->count1 < 0)
7252 		EMSG(_("E662: At start of changelist"));
7253 	    else
7254 		EMSG(_("E663: At end of changelist"));
7255 	}
7256 	else
7257 	    clearopbeep(cap->oap);
7258 # ifdef FEAT_FOLDING
7259 	if (cap->oap->op_type == OP_NOP
7260 		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
7261 		&& (fdo_flags & FDO_MARK)
7262 		&& old_KeyTyped)
7263 	    foldOpenCursor();
7264 # endif
7265     }
7266 #else
7267     clearopbeep(cap->oap);
7268 #endif
7269 }
7270 
7271 /*
7272  * Handle '"' command.
7273  */
7274     static void
7275 nv_regname(cap)
7276     cmdarg_T	*cap;
7277 {
7278     if (checkclearop(cap->oap))
7279 	return;
7280 #ifdef FEAT_EVAL
7281     if (cap->nchar == '=')
7282 	cap->nchar = get_expr_register();
7283 #endif
7284     if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
7285     {
7286 	cap->oap->regname = cap->nchar;
7287 	cap->opcount = cap->count0;	/* remember count before '"' */
7288 #ifdef FEAT_EVAL
7289 	set_reg_var(cap->oap->regname);
7290 #endif
7291     }
7292     else
7293 	clearopbeep(cap->oap);
7294 }
7295 
7296 #ifdef FEAT_VISUAL
7297 /*
7298  * Handle "v", "V" and "CTRL-V" commands.
7299  * Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
7300  * is TRUE.
7301  * Handle CTRL-Q just like CTRL-V.
7302  */
7303     static void
7304 nv_visual(cap)
7305     cmdarg_T	*cap;
7306 {
7307     if (cap->cmdchar == Ctrl_Q)
7308 	cap->cmdchar = Ctrl_V;
7309 
7310     /* 'v', 'V' and CTRL-V can be used while an operator is pending to make it
7311      * characterwise, linewise, or blockwise. */
7312     if (cap->oap->op_type != OP_NOP)
7313     {
7314 	cap->oap->motion_force = cap->cmdchar;
7315 	finish_op = FALSE;	/* operator doesn't finish now but later */
7316 	return;
7317     }
7318 
7319     VIsual_select = cap->arg;
7320     if (VIsual_active)	    /* change Visual mode */
7321     {
7322 	if (VIsual_mode == cap->cmdchar)    /* stop visual mode */
7323 	    end_visual_mode();
7324 	else				    /* toggle char/block mode */
7325 	{				    /*	   or char/line mode */
7326 	    VIsual_mode = cap->cmdchar;
7327 	    showmode();
7328 	}
7329 	redraw_curbuf_later(INVERTED);	    /* update the inversion */
7330     }
7331     else		    /* start Visual mode */
7332     {
7333 	check_visual_highlight();
7334 	if (cap->count0)		    /* use previously selected part */
7335 	{
7336 	    if (resel_VIsual_mode == NUL)   /* there is none */
7337 	    {
7338 		beep_flush();
7339 		return;
7340 	    }
7341 	    VIsual = curwin->w_cursor;
7342 
7343 	    VIsual_active = TRUE;
7344 	    VIsual_reselect = TRUE;
7345 	    if (!cap->arg)
7346 		/* start Select mode when 'selectmode' contains "cmd" */
7347 		may_start_select('c');
7348 #ifdef FEAT_MOUSE
7349 	    setmouse();
7350 #endif
7351 	    if (p_smd && msg_silent == 0)
7352 		redraw_cmdline = TRUE;	    /* show visual mode later */
7353 	    /*
7354 	     * For V and ^V, we multiply the number of lines even if there
7355 	     * was only one -- webb
7356 	     */
7357 	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
7358 	    {
7359 		curwin->w_cursor.lnum +=
7360 				    resel_VIsual_line_count * cap->count0 - 1;
7361 		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
7362 		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
7363 	    }
7364 	    VIsual_mode = resel_VIsual_mode;
7365 	    if (VIsual_mode == 'v')
7366 	    {
7367 		if (resel_VIsual_line_count <= 1)
7368 		    curwin->w_cursor.col += resel_VIsual_col * cap->count0 - 1;
7369 		else
7370 		    curwin->w_cursor.col = resel_VIsual_col;
7371 		check_cursor_col();
7372 	    }
7373 	    if (resel_VIsual_col == MAXCOL)
7374 	    {
7375 		curwin->w_curswant = MAXCOL;
7376 		coladvance((colnr_T)MAXCOL);
7377 	    }
7378 	    else if (VIsual_mode == Ctrl_V)
7379 	    {
7380 		validate_virtcol();
7381 		curwin->w_curswant = curwin->w_virtcol
7382 					 + resel_VIsual_col * cap->count0 - 1;
7383 		coladvance(curwin->w_curswant);
7384 	    }
7385 	    else
7386 		curwin->w_set_curswant = TRUE;
7387 	    redraw_curbuf_later(INVERTED);	/* show the inversion */
7388 	}
7389 	else
7390 	{
7391 	    if (!cap->arg)
7392 		/* start Select mode when 'selectmode' contains "cmd" */
7393 		may_start_select('c');
7394 	    n_start_visual_mode(cap->cmdchar);
7395 	}
7396     }
7397 }
7398 
7399 /*
7400  * Start selection for Shift-movement keys.
7401  */
7402     void
7403 start_selection()
7404 {
7405     /* if 'selectmode' contains "key", start Select mode */
7406     may_start_select('k');
7407     n_start_visual_mode('v');
7408 }
7409 
7410 /*
7411  * Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
7412  */
7413     void
7414 may_start_select(c)
7415     int		c;
7416 {
7417     VIsual_select = (stuff_empty() && typebuf_typed()
7418 		    && (vim_strchr(p_slm, c) != NULL));
7419 }
7420 
7421 /*
7422  * Start Visual mode "c".
7423  * Should set VIsual_select before calling this.
7424  */
7425     static void
7426 n_start_visual_mode(c)
7427     int		c;
7428 {
7429     VIsual_mode = c;
7430     VIsual_active = TRUE;
7431     VIsual_reselect = TRUE;
7432 #ifdef FEAT_VIRTUALEDIT
7433     /* Corner case: the 0 position in a tab may change when going into
7434      * virtualedit.  Recalculate curwin->w_cursor to avoid bad hilighting.
7435      */
7436     if (c == Ctrl_V && (ve_flags & VE_BLOCK) && gchar_cursor() == TAB)
7437 	coladvance(curwin->w_virtcol);
7438 #endif
7439     VIsual = curwin->w_cursor;
7440 
7441 #ifdef FEAT_FOLDING
7442     foldAdjustVisual();
7443 #endif
7444 
7445 #ifdef FEAT_MOUSE
7446     setmouse();
7447 #endif
7448     if (p_smd && msg_silent == 0)
7449 	redraw_cmdline = TRUE;	/* show visual mode later */
7450 #ifdef FEAT_CLIPBOARD
7451     /* Make sure the clipboard gets updated.  Needed because start and
7452      * end may still be the same, and the selection needs to be owned */
7453     clip_star.vmode = NUL;
7454 #endif
7455 
7456     /* Only need to redraw this line, unless still need to redraw an old
7457      * Visual area (when 'lazyredraw' is set). */
7458     if (curwin->w_redr_type < INVERTED)
7459     {
7460 	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
7461 	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
7462     }
7463 }
7464 
7465 #endif /* FEAT_VISUAL */
7466 
7467 /*
7468  * CTRL-W: Window commands
7469  */
7470     static void
7471 nv_window(cap)
7472     cmdarg_T	*cap;
7473 {
7474 #ifdef FEAT_WINDOWS
7475     if (!checkclearop(cap->oap))
7476 	do_window(cap->nchar, cap->count0, NUL); /* everything is in window.c */
7477 #else
7478     (void)checkclearop(cap->oap);
7479 #endif
7480 }
7481 
7482 /*
7483  * CTRL-Z: Suspend
7484  */
7485     static void
7486 nv_suspend(cap)
7487     cmdarg_T	*cap;
7488 {
7489     clearop(cap->oap);
7490 #ifdef FEAT_VISUAL
7491     if (VIsual_active)
7492 	end_visual_mode();		/* stop Visual mode */
7493 #endif
7494     do_cmdline_cmd((char_u *)"st");
7495 }
7496 
7497 /*
7498  * Commands starting with "g".
7499  */
7500     static void
7501 nv_g_cmd(cap)
7502     cmdarg_T	*cap;
7503 {
7504     oparg_T	*oap = cap->oap;
7505 #ifdef FEAT_VISUAL
7506     pos_T	tpos;
7507 #endif
7508     int		i;
7509     int		flag = FALSE;
7510 
7511     switch (cap->nchar)
7512     {
7513 #ifdef MEM_PROFILE
7514     /*
7515      * "g^A": dump log of used memory.
7516      */
7517     case Ctrl_A:
7518 	vim_mem_profile_dump();
7519 	break;
7520 #endif
7521 
7522 #ifdef FEAT_VREPLACE
7523     /*
7524      * "gR": Enter virtual replace mode.
7525      */
7526     case 'R':
7527 	cap->arg = TRUE;
7528 	nv_Replace(cap);
7529 	break;
7530 
7531     case 'r':
7532 	nv_vreplace(cap);
7533 	break;
7534 #endif
7535 
7536     case '&':
7537 	do_cmdline_cmd((char_u *)"%s//~/&");
7538 	break;
7539 
7540 #ifdef FEAT_VISUAL
7541     /*
7542      * "gv": Reselect the previous Visual area.  If Visual already active,
7543      *	     exchange previous and current Visual area.
7544      */
7545     case 'v':
7546 	if (checkclearop(oap))
7547 	    break;
7548 
7549 	if (	   curbuf->b_visual.vi_start.lnum == 0
7550 		|| curbuf->b_visual.vi_start.lnum > curbuf->b_ml.ml_line_count
7551 		|| curbuf->b_visual.vi_end.lnum == 0)
7552 	    beep_flush();
7553 	else
7554 	{
7555 	    /* set w_cursor to the start of the Visual area, tpos to the end */
7556 	    if (VIsual_active)
7557 	    {
7558 		i = VIsual_mode;
7559 		VIsual_mode = curbuf->b_visual.vi_mode;
7560 		curbuf->b_visual.vi_mode = i;
7561 # ifdef FEAT_EVAL
7562 		curbuf->b_visual_mode_eval = i;
7563 # endif
7564 		i = curwin->w_curswant;
7565 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7566 		curbuf->b_visual.vi_curswant = i;
7567 
7568 		tpos = curbuf->b_visual.vi_end;
7569 		curbuf->b_visual.vi_end = curwin->w_cursor;
7570 		curwin->w_cursor = curbuf->b_visual.vi_start;
7571 		curbuf->b_visual.vi_start = VIsual;
7572 	    }
7573 	    else
7574 	    {
7575 		VIsual_mode = curbuf->b_visual.vi_mode;
7576 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7577 		tpos = curbuf->b_visual.vi_end;
7578 		curwin->w_cursor = curbuf->b_visual.vi_start;
7579 	    }
7580 
7581 	    VIsual_active = TRUE;
7582 	    VIsual_reselect = TRUE;
7583 
7584 	    /* Set Visual to the start and w_cursor to the end of the Visual
7585 	     * area.  Make sure they are on an existing character. */
7586 	    check_cursor();
7587 	    VIsual = curwin->w_cursor;
7588 	    curwin->w_cursor = tpos;
7589 	    check_cursor();
7590 	    update_topline();
7591 	    /*
7592 	     * When called from normal "g" command: start Select mode when
7593 	     * 'selectmode' contains "cmd".  When called for K_SELECT, always
7594 	     * start Select mode.
7595 	     */
7596 	    if (cap->arg)
7597 		VIsual_select = TRUE;
7598 	    else
7599 		may_start_select('c');
7600 #ifdef FEAT_MOUSE
7601 	    setmouse();
7602 #endif
7603 #ifdef FEAT_CLIPBOARD
7604 	    /* Make sure the clipboard gets updated.  Needed because start and
7605 	     * end are still the same, and the selection needs to be owned */
7606 	    clip_star.vmode = NUL;
7607 #endif
7608 	    redraw_curbuf_later(INVERTED);
7609 	    showmode();
7610 	}
7611 	break;
7612     /*
7613      * "gV": Don't reselect the previous Visual area after a Select mode
7614      *	     mapping of menu.
7615      */
7616     case 'V':
7617 	VIsual_reselect = FALSE;
7618 	break;
7619 
7620     /*
7621      * "gh":  start Select mode.
7622      * "gH":  start Select line mode.
7623      * "g^H": start Select block mode.
7624      */
7625     case K_BS:
7626 	cap->nchar = Ctrl_H;
7627 	/* FALLTHROUGH */
7628     case 'h':
7629     case 'H':
7630     case Ctrl_H:
7631 # ifdef EBCDIC
7632 	/* EBCDIC: 'v'-'h' != '^v'-'^h' */
7633 	if (cap->nchar == Ctrl_H)
7634 	    cap->cmdchar = Ctrl_V;
7635 	else
7636 # endif
7637 	cap->cmdchar = cap->nchar + ('v' - 'h');
7638 	cap->arg = TRUE;
7639 	nv_visual(cap);
7640 	break;
7641 #endif /* FEAT_VISUAL */
7642 
7643     /*
7644      * "gj" and "gk" two new funny movement keys -- up and down
7645      * movement based on *screen* line rather than *file* line.
7646      */
7647     case 'j':
7648     case K_DOWN:
7649 	/* with 'nowrap' it works just like the normal "j" command; also when
7650 	 * in a closed fold */
7651 	if (!curwin->w_p_wrap
7652 #ifdef FEAT_FOLDING
7653 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7654 #endif
7655 		)
7656 	{
7657 	    oap->motion_type = MLINE;
7658 	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
7659 	}
7660 	else
7661 	    i = nv_screengo(oap, FORWARD, cap->count1);
7662 	if (i == FAIL)
7663 	    clearopbeep(oap);
7664 	break;
7665 
7666     case 'k':
7667     case K_UP:
7668 	/* with 'nowrap' it works just like the normal "k" command; also when
7669 	 * in a closed fold */
7670 	if (!curwin->w_p_wrap
7671 #ifdef FEAT_FOLDING
7672 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7673 #endif
7674 	   )
7675 	{
7676 	    oap->motion_type = MLINE;
7677 	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
7678 	}
7679 	else
7680 	    i = nv_screengo(oap, BACKWARD, cap->count1);
7681 	if (i == FAIL)
7682 	    clearopbeep(oap);
7683 	break;
7684 
7685     /*
7686      * "gJ": join two lines without inserting a space.
7687      */
7688     case 'J':
7689 	nv_join(cap);
7690 	break;
7691 
7692     /*
7693      * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
7694      * "gm": middle of "g0" and "g$".
7695      */
7696     case '^':
7697 	flag = TRUE;
7698 	/* FALLTHROUGH */
7699 
7700     case '0':
7701     case 'm':
7702     case K_HOME:
7703     case K_KHOME:
7704 	oap->motion_type = MCHAR;
7705 	oap->inclusive = FALSE;
7706 	if (curwin->w_p_wrap
7707 #ifdef FEAT_VERTSPLIT
7708 		&& curwin->w_width != 0
7709 #endif
7710 		)
7711 	{
7712 	    int		width1 = W_WIDTH(curwin) - curwin_col_off();
7713 	    int		width2 = width1 + curwin_col_off2();
7714 
7715 	    validate_virtcol();
7716 	    i = 0;
7717 	    if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
7718 		i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
7719 	}
7720 	else
7721 	    i = curwin->w_leftcol;
7722 	/* Go to the middle of the screen line.  When 'number' is on and lines
7723 	 * are wrapping the middle can be more to the left.*/
7724 	if (cap->nchar == 'm')
7725 	    i += (W_WIDTH(curwin) - curwin_col_off()
7726 		    + ((curwin->w_p_wrap && i > 0)
7727 			? curwin_col_off2() : 0)) / 2;
7728 	coladvance((colnr_T)i);
7729 	if (flag)
7730 	{
7731 	    do
7732 		i = gchar_cursor();
7733 	    while (vim_iswhite(i) && oneright() == OK);
7734 	}
7735 	curwin->w_set_curswant = TRUE;
7736 	break;
7737 
7738     case '_':
7739 	/* "g_": to the last non-blank character in the line or <count> lines
7740 	 * downward. */
7741 	cap->oap->motion_type = MCHAR;
7742 	cap->oap->inclusive = TRUE;
7743 	curwin->w_curswant = MAXCOL;
7744 	if (cursor_down((long)(cap->count1 - 1),
7745 					 cap->oap->op_type == OP_NOP) == FAIL)
7746 	    clearopbeep(cap->oap);
7747 	else
7748 	{
7749 	    char_u  *ptr = ml_get_curline();
7750 
7751 	    /* In Visual mode we may end up after the line. */
7752 	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
7753 		--curwin->w_cursor.col;
7754 
7755 	    /* Decrease the cursor column until it's on a non-blank. */
7756 	    while (curwin->w_cursor.col > 0
7757 				    && vim_iswhite(ptr[curwin->w_cursor.col]))
7758 		--curwin->w_cursor.col;
7759 	    curwin->w_set_curswant = TRUE;
7760 	}
7761 	break;
7762 
7763     case '$':
7764     case K_END:
7765     case K_KEND:
7766 	{
7767 	    int col_off = curwin_col_off();
7768 
7769 	    oap->motion_type = MCHAR;
7770 	    oap->inclusive = TRUE;
7771 	    if (curwin->w_p_wrap
7772 #ifdef FEAT_VERTSPLIT
7773 		    && curwin->w_width != 0
7774 #endif
7775 	       )
7776 	    {
7777 		curwin->w_curswant = MAXCOL;    /* so we stay at the end */
7778 		if (cap->count1 == 1)
7779 		{
7780 		    int		width1 = W_WIDTH(curwin) - col_off;
7781 		    int		width2 = width1 + curwin_col_off2();
7782 
7783 		    validate_virtcol();
7784 		    i = width1 - 1;
7785 		    if (curwin->w_virtcol >= (colnr_T)width1)
7786 			i += ((curwin->w_virtcol - width1) / width2 + 1)
7787 								     * width2;
7788 		    coladvance((colnr_T)i);
7789 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
7790 		    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
7791 		    {
7792 			/*
7793 			 * Check for landing on a character that got split at
7794 			 * the end of the line.  We do not want to advance to
7795 			 * the next screen line.
7796 			 */
7797 			validate_virtcol();
7798 			if (curwin->w_virtcol > (colnr_T)i)
7799 			    --curwin->w_cursor.col;
7800 		    }
7801 #endif
7802 		}
7803 		else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
7804 		    clearopbeep(oap);
7805 	    }
7806 	    else
7807 	    {
7808 		i = curwin->w_leftcol + W_WIDTH(curwin) - col_off - 1;
7809 		coladvance((colnr_T)i);
7810 
7811 		/* Make sure we stick in this column. */
7812 		validate_virtcol();
7813 		curwin->w_curswant = curwin->w_virtcol;
7814 		curwin->w_set_curswant = FALSE;
7815 	    }
7816 	}
7817 	break;
7818 
7819     /*
7820      * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
7821      */
7822     case '*':
7823     case '#':
7824 #if POUND != '#'
7825     case POUND:		/* pound sign (sometimes equal to '#') */
7826 #endif
7827     case Ctrl_RSB:		/* :tag or :tselect for current identifier */
7828     case ']':			/* :tselect for current identifier */
7829 	nv_ident(cap);
7830 	break;
7831 
7832     /*
7833      * ge and gE: go back to end of word
7834      */
7835     case 'e':
7836     case 'E':
7837 	oap->motion_type = MCHAR;
7838 	curwin->w_set_curswant = TRUE;
7839 	oap->inclusive = TRUE;
7840 	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
7841 	    clearopbeep(oap);
7842 	break;
7843 
7844     /*
7845      * "g CTRL-G": display info about cursor position
7846      */
7847     case Ctrl_G:
7848 	cursor_pos_info();
7849 	break;
7850 
7851     /*
7852      * "gi": start Insert at the last position.
7853      */
7854     case 'i':
7855 	if (curbuf->b_last_insert.lnum != 0)
7856 	{
7857 	    curwin->w_cursor = curbuf->b_last_insert;
7858 	    check_cursor_lnum();
7859 	    i = (int)STRLEN(ml_get_curline());
7860 	    if (curwin->w_cursor.col > (colnr_T)i)
7861 	    {
7862 #ifdef FEAT_VIRTUALEDIT
7863 		if (virtual_active())
7864 		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
7865 #endif
7866 		curwin->w_cursor.col = i;
7867 	    }
7868 	}
7869 	cap->cmdchar = 'i';
7870 	nv_edit(cap);
7871 	break;
7872 
7873     /*
7874      * "gI": Start insert in column 1.
7875      */
7876     case 'I':
7877 	beginline(0);
7878 	if (!checkclearopq(oap))
7879 	    invoke_edit(cap, FALSE, 'g', FALSE);
7880 	break;
7881 
7882 #ifdef FEAT_SEARCHPATH
7883     /*
7884      * "gf": goto file, edit file under cursor
7885      * "]f" and "[f": can also be used.
7886      */
7887     case 'f':
7888     case 'F':
7889 	nv_gotofile(cap);
7890 	break;
7891 #endif
7892 
7893 	/* "g'm" and "g`m": jump to mark without setting pcmark */
7894     case '\'':
7895 	cap->arg = TRUE;
7896 	/*FALLTHROUGH*/
7897     case '`':
7898 	nv_gomark(cap);
7899 	break;
7900 
7901     /*
7902      * "gs": Goto sleep.
7903      */
7904     case 's':
7905 	do_sleep(cap->count1 * 1000L);
7906 	break;
7907 
7908     /*
7909      * "ga": Display the ascii value of the character under the
7910      * cursor.	It is displayed in decimal, hex, and octal. -- webb
7911      */
7912     case 'a':
7913 	do_ascii(NULL);
7914 	break;
7915 
7916 #ifdef FEAT_MBYTE
7917     /*
7918      * "g8": Display the bytes used for the UTF-8 character under the
7919      * cursor.	It is displayed in hex.
7920      * "8g8" finds illegal byte sequence.
7921      */
7922     case '8':
7923 	if (cap->count0 == 8)
7924 	    utf_find_illegal();
7925 	else
7926 	    show_utf8();
7927 	break;
7928 #endif
7929 
7930     case '<':
7931 	show_sb_text();
7932 	break;
7933 
7934     /*
7935      * "gg": Goto the first line in file.  With a count it goes to
7936      * that line number like for "G". -- webb
7937      */
7938     case 'g':
7939 	cap->arg = FALSE;
7940 	nv_goto(cap);
7941 	break;
7942 
7943     /*
7944      *	 Two-character operators:
7945      *	 "gq"	    Format text
7946      *	 "gw"	    Format text and keep cursor position
7947      *	 "g~"	    Toggle the case of the text.
7948      *	 "gu"	    Change text to lower case.
7949      *	 "gU"	    Change text to upper case.
7950      *   "g?"	    rot13 encoding
7951      *   "g@"	    call 'operatorfunc'
7952      */
7953     case 'q':
7954     case 'w':
7955 	oap->cursor_start = curwin->w_cursor;
7956 	/*FALLTHROUGH*/
7957     case '~':
7958     case 'u':
7959     case 'U':
7960     case '?':
7961     case '@':
7962 	nv_operator(cap);
7963 	break;
7964 
7965     /*
7966      * "gd": Find first occurence of pattern under the cursor in the
7967      *	 current function
7968      * "gD": idem, but in the current file.
7969      */
7970     case 'd':
7971     case 'D':
7972 	nv_gd(oap, cap->nchar, (int)cap->count0);
7973 	break;
7974 
7975 #ifdef FEAT_MOUSE
7976     /*
7977      * g<*Mouse> : <C-*mouse>
7978      */
7979     case K_MIDDLEMOUSE:
7980     case K_MIDDLEDRAG:
7981     case K_MIDDLERELEASE:
7982     case K_LEFTMOUSE:
7983     case K_LEFTDRAG:
7984     case K_LEFTRELEASE:
7985     case K_RIGHTMOUSE:
7986     case K_RIGHTDRAG:
7987     case K_RIGHTRELEASE:
7988     case K_X1MOUSE:
7989     case K_X1DRAG:
7990     case K_X1RELEASE:
7991     case K_X2MOUSE:
7992     case K_X2DRAG:
7993     case K_X2RELEASE:
7994 	mod_mask = MOD_MASK_CTRL;
7995 	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
7996 	break;
7997 #endif
7998 
7999     case K_IGNORE:
8000 	break;
8001 
8002     /*
8003      * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
8004      */
8005     case 'p':
8006     case 'P':
8007 	nv_put(cap);
8008 	break;
8009 
8010 #ifdef FEAT_BYTEOFF
8011     /* "go": goto byte count from start of buffer */
8012     case 'o':
8013 	goto_byte(cap->count0);
8014 	break;
8015 #endif
8016 
8017     /* "gQ": improved Ex mode */
8018     case 'Q':
8019 	if (text_locked())
8020 	{
8021 	    clearopbeep(cap->oap);
8022 	    text_locked_msg();
8023 	    break;
8024 	}
8025 
8026 	if (!checkclearopq(oap))
8027 	    do_exmode(TRUE);
8028 	break;
8029 
8030 #ifdef FEAT_JUMPLIST
8031     case ',':
8032 	nv_pcmark(cap);
8033 	break;
8034 
8035     case ';':
8036 	cap->count1 = -cap->count1;
8037 	nv_pcmark(cap);
8038 	break;
8039 #endif
8040 
8041 #ifdef FEAT_WINDOWS
8042     case 't':
8043 	goto_tabpage((int)cap->count0);
8044 	break;
8045     case 'T':
8046 	goto_tabpage(-(int)cap->count1);
8047 	break;
8048 #endif
8049 
8050     case '+':
8051     case '-': /* "g+" and "g-": undo or redo along the timeline */
8052 	if (!checkclearopq(oap))
8053 	    undo_time(cap->nchar == '-' ? -cap->count1 : cap->count1,
8054 								FALSE, FALSE);
8055 	break;
8056 
8057     default:
8058 	clearopbeep(oap);
8059 	break;
8060     }
8061 }
8062 
8063 /*
8064  * Handle "o" and "O" commands.
8065  */
8066     static void
8067 n_opencmd(cap)
8068     cmdarg_T	*cap;
8069 {
8070     if (!checkclearopq(cap->oap))
8071     {
8072 #ifdef FEAT_FOLDING
8073 	if (cap->cmdchar == 'O')
8074 	    /* Open above the first line of a folded sequence of lines */
8075 	    (void)hasFolding(curwin->w_cursor.lnum,
8076 						&curwin->w_cursor.lnum, NULL);
8077 	else
8078 	    /* Open below the last line of a folded sequence of lines */
8079 	    (void)hasFolding(curwin->w_cursor.lnum,
8080 						NULL, &curwin->w_cursor.lnum);
8081 #endif
8082 	if (u_save((linenr_T)(curwin->w_cursor.lnum -
8083 					       (cap->cmdchar == 'O' ? 1 : 0)),
8084 		   (linenr_T)(curwin->w_cursor.lnum +
8085 					       (cap->cmdchar == 'o' ? 1 : 0))
8086 		       ) == OK
8087 		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
8088 #ifdef FEAT_COMMENTS
8089 		    has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM :
8090 #endif
8091 		    0, 0))
8092 	{
8093 	    /* When '#' is in 'cpoptions' ignore the count. */
8094 	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
8095 		cap->count1 = 1;
8096 	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
8097 	}
8098     }
8099 }
8100 
8101 /*
8102  * "." command: redo last change.
8103  */
8104     static void
8105 nv_dot(cap)
8106     cmdarg_T	*cap;
8107 {
8108     if (!checkclearopq(cap->oap))
8109     {
8110 	/*
8111 	 * If "restart_edit" is TRUE, the last but one command is repeated
8112 	 * instead of the last command (inserting text). This is used for
8113 	 * CTRL-O <.> in insert mode.
8114 	 */
8115 	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
8116 	    clearopbeep(cap->oap);
8117     }
8118 }
8119 
8120 /*
8121  * CTRL-R: undo undo
8122  */
8123     static void
8124 nv_redo(cap)
8125     cmdarg_T	*cap;
8126 {
8127     if (!checkclearopq(cap->oap))
8128     {
8129 	u_redo((int)cap->count1);
8130 	curwin->w_set_curswant = TRUE;
8131     }
8132 }
8133 
8134 /*
8135  * Handle "U" command.
8136  */
8137     static void
8138 nv_Undo(cap)
8139     cmdarg_T	*cap;
8140 {
8141     /* In Visual mode and typing "gUU" triggers an operator */
8142     if (cap->oap->op_type == OP_UPPER
8143 #ifdef FEAT_VISUAL
8144 	    || VIsual_active
8145 #endif
8146 	    )
8147     {
8148 	/* translate "gUU" to "gUgU" */
8149 	cap->cmdchar = 'g';
8150 	cap->nchar = 'U';
8151 	nv_operator(cap);
8152     }
8153     else if (!checkclearopq(cap->oap))
8154     {
8155 	u_undoline();
8156 	curwin->w_set_curswant = TRUE;
8157     }
8158 }
8159 
8160 /*
8161  * '~' command: If tilde is not an operator and Visual is off: swap case of a
8162  * single character.
8163  */
8164     static void
8165 nv_tilde(cap)
8166     cmdarg_T	*cap;
8167 {
8168     if (!p_to
8169 #ifdef FEAT_VISUAL
8170 	    && !VIsual_active
8171 #endif
8172 	    && cap->oap->op_type != OP_TILDE)
8173 	n_swapchar(cap);
8174     else
8175 	nv_operator(cap);
8176 }
8177 
8178 /*
8179  * Handle an operator command.
8180  * The actual work is done by do_pending_operator().
8181  */
8182     static void
8183 nv_operator(cap)
8184     cmdarg_T	*cap;
8185 {
8186     int	    op_type;
8187 
8188     op_type = get_op_type(cap->cmdchar, cap->nchar);
8189 
8190     if (op_type == cap->oap->op_type)	    /* double operator works on lines */
8191 	nv_lineop(cap);
8192     else if (!checkclearop(cap->oap))
8193     {
8194 	cap->oap->start = curwin->w_cursor;
8195 	cap->oap->op_type = op_type;
8196     }
8197 }
8198 
8199 /*
8200  * Handle linewise operator "dd", "yy", etc.
8201  *
8202  * "_" is is a strange motion command that helps make operators more logical.
8203  * It is actually implemented, but not documented in the real Vi.  This motion
8204  * command actually refers to "the current line".  Commands like "dd" and "yy"
8205  * are really an alternate form of "d_" and "y_".  It does accept a count, so
8206  * "d3_" works to delete 3 lines.
8207  */
8208     static void
8209 nv_lineop(cap)
8210     cmdarg_T	*cap;
8211 {
8212     cap->oap->motion_type = MLINE;
8213     if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
8214 	clearopbeep(cap->oap);
8215     else if (  cap->oap->op_type == OP_DELETE
8216 	    || cap->oap->op_type == OP_LSHIFT
8217 	    || cap->oap->op_type == OP_RSHIFT)
8218 	beginline(BL_SOL | BL_FIX);
8219     else if (cap->oap->op_type != OP_YANK)	/* 'Y' does not move cursor */
8220 	beginline(BL_WHITE | BL_FIX);
8221 }
8222 
8223 /*
8224  * <Home> command.
8225  */
8226     static void
8227 nv_home(cap)
8228     cmdarg_T	*cap;
8229 {
8230     /* CTRL-HOME is like "gg" */
8231     if (mod_mask & MOD_MASK_CTRL)
8232 	nv_goto(cap);
8233     else
8234     {
8235 	cap->count0 = 1;
8236 	nv_pipe(cap);
8237     }
8238     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8239 			       one-character line). */
8240 }
8241 
8242 /*
8243  * "|" command.
8244  */
8245     static void
8246 nv_pipe(cap)
8247     cmdarg_T *cap;
8248 {
8249     cap->oap->motion_type = MCHAR;
8250     cap->oap->inclusive = FALSE;
8251     beginline(0);
8252     if (cap->count0 > 0)
8253     {
8254 	coladvance((colnr_T)(cap->count0 - 1));
8255 	curwin->w_curswant = (colnr_T)(cap->count0 - 1);
8256     }
8257     else
8258 	curwin->w_curswant = 0;
8259     /* keep curswant at the column where we wanted to go, not where
8260        we ended; differs if line is too short */
8261     curwin->w_set_curswant = FALSE;
8262 }
8263 
8264 /*
8265  * Handle back-word command "b" and "B".
8266  * cap->arg is 1 for "B"
8267  */
8268     static void
8269 nv_bck_word(cap)
8270     cmdarg_T	*cap;
8271 {
8272     cap->oap->motion_type = MCHAR;
8273     cap->oap->inclusive = FALSE;
8274     curwin->w_set_curswant = TRUE;
8275     if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
8276 	clearopbeep(cap->oap);
8277 #ifdef FEAT_FOLDING
8278     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8279 	foldOpenCursor();
8280 #endif
8281 }
8282 
8283 /*
8284  * Handle word motion commands "e", "E", "w" and "W".
8285  * cap->arg is TRUE for "E" and "W".
8286  */
8287     static void
8288 nv_wordcmd(cap)
8289     cmdarg_T	*cap;
8290 {
8291     int		n;
8292     int		word_end;
8293     int		flag = FALSE;
8294 
8295     /*
8296      * Set inclusive for the "E" and "e" command.
8297      */
8298     if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
8299 	word_end = TRUE;
8300     else
8301 	word_end = FALSE;
8302     cap->oap->inclusive = word_end;
8303 
8304     /*
8305      * "cw" and "cW" are a special case.
8306      */
8307     if (!word_end && cap->oap->op_type == OP_CHANGE)
8308     {
8309 	n = gchar_cursor();
8310 	if (n != NUL)			/* not an empty line */
8311 	{
8312 	    if (vim_iswhite(n))
8313 	    {
8314 		/*
8315 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
8316 		 * changes one character, not all blanks until the start of
8317 		 * the next word.  Only do this when the 'w' flag is included
8318 		 * in 'cpoptions'.
8319 		 */
8320 		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
8321 		{
8322 		    cap->oap->inclusive = TRUE;
8323 		    cap->oap->motion_type = MCHAR;
8324 		    return;
8325 		}
8326 	    }
8327 	    else
8328 	    {
8329 		/*
8330 		 * This is a little strange. To match what the real Vi does,
8331 		 * we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
8332 		 * that we are not on a space or a TAB.  This seems impolite
8333 		 * at first, but it's really more what we mean when we say
8334 		 * 'cw'.
8335 		 * Another strangeness: When standing on the end of a word
8336 		 * "ce" will change until the end of the next wordt, but "cw"
8337 		 * will change only one character! This is done by setting
8338 		 * flag.
8339 		 */
8340 		cap->oap->inclusive = TRUE;
8341 		word_end = TRUE;
8342 		flag = TRUE;
8343 	    }
8344 	}
8345     }
8346 
8347     cap->oap->motion_type = MCHAR;
8348     curwin->w_set_curswant = TRUE;
8349     if (word_end)
8350 	n = end_word(cap->count1, cap->arg, flag, FALSE);
8351     else
8352 	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
8353 
8354     /* Don't leave the cursor on the NUL past a line */
8355     if (curwin->w_cursor.col && gchar_cursor() == NUL)
8356     {
8357 	--curwin->w_cursor.col;
8358 	cap->oap->inclusive = TRUE;
8359     }
8360 
8361     if (n == FAIL && cap->oap->op_type == OP_NOP)
8362 	clearopbeep(cap->oap);
8363     else
8364     {
8365 #ifdef FEAT_VISUAL
8366 	adjust_for_sel(cap);
8367 #endif
8368 #ifdef FEAT_FOLDING
8369 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8370 	    foldOpenCursor();
8371 #endif
8372     }
8373 }
8374 
8375 /*
8376  * "0" and "^" commands.
8377  * cap->arg is the argument for beginline().
8378  */
8379     static void
8380 nv_beginline(cap)
8381     cmdarg_T	*cap;
8382 {
8383     cap->oap->motion_type = MCHAR;
8384     cap->oap->inclusive = FALSE;
8385     beginline(cap->arg);
8386 #ifdef FEAT_FOLDING
8387     if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8388 	foldOpenCursor();
8389 #endif
8390     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8391 			       one-character line). */
8392 }
8393 
8394 #ifdef FEAT_VISUAL
8395 /*
8396  * In exclusive Visual mode, may include the last character.
8397  */
8398     static void
8399 adjust_for_sel(cap)
8400     cmdarg_T	*cap;
8401 {
8402     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
8403 	    && gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor))
8404     {
8405 # ifdef FEAT_MBYTE
8406 	if (has_mbyte)
8407 	    inc_cursor();
8408 	else
8409 # endif
8410 	    ++curwin->w_cursor.col;
8411 	cap->oap->inclusive = FALSE;
8412     }
8413 }
8414 
8415 /*
8416  * Exclude last character at end of Visual area for 'selection' == "exclusive".
8417  * Should check VIsual_mode before calling this.
8418  * Returns TRUE when backed up to the previous line.
8419  */
8420     static int
8421 unadjust_for_sel()
8422 {
8423     pos_T	*pp;
8424 
8425     if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor))
8426     {
8427 	if (lt(VIsual, curwin->w_cursor))
8428 	    pp = &curwin->w_cursor;
8429 	else
8430 	    pp = &VIsual;
8431 #ifdef FEAT_VIRTUALEDIT
8432 	if (pp->coladd > 0)
8433 	    --pp->coladd;
8434 	else
8435 #endif
8436 	if (pp->col > 0)
8437 	{
8438 	    --pp->col;
8439 #ifdef FEAT_MBYTE
8440 	    mb_adjustpos(pp);
8441 #endif
8442 	}
8443 	else if (pp->lnum > 1)
8444 	{
8445 	    --pp->lnum;
8446 	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
8447 	    return TRUE;
8448 	}
8449     }
8450     return FALSE;
8451 }
8452 
8453 /*
8454  * SELECT key in Normal or Visual mode: end of Select mode mapping.
8455  */
8456     static void
8457 nv_select(cap)
8458     cmdarg_T	*cap;
8459 {
8460     if (VIsual_active)
8461 	VIsual_select = TRUE;
8462     else if (VIsual_reselect)
8463     {
8464 	cap->nchar = 'v';	    /* fake "gv" command */
8465 	cap->arg = TRUE;
8466 	nv_g_cmd(cap);
8467     }
8468 }
8469 
8470 #endif
8471 
8472 /*
8473  * "G", "gg", CTRL-END, CTRL-HOME.
8474  * cap->arg is TRUE for "G".
8475  */
8476     static void
8477 nv_goto(cap)
8478     cmdarg_T	*cap;
8479 {
8480     linenr_T	lnum;
8481 
8482     if (cap->arg)
8483 	lnum = curbuf->b_ml.ml_line_count;
8484     else
8485 	lnum = 1L;
8486     cap->oap->motion_type = MLINE;
8487     setpcmark();
8488 
8489     /* When a count is given, use it instead of the default lnum */
8490     if (cap->count0 != 0)
8491 	lnum = cap->count0;
8492     if (lnum < 1L)
8493 	lnum = 1L;
8494     else if (lnum > curbuf->b_ml.ml_line_count)
8495 	lnum = curbuf->b_ml.ml_line_count;
8496     curwin->w_cursor.lnum = lnum;
8497     beginline(BL_SOL | BL_FIX);
8498 #ifdef FEAT_FOLDING
8499     if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP)
8500 	foldOpenCursor();
8501 #endif
8502 }
8503 
8504 /*
8505  * CTRL-\ in Normal mode.
8506  */
8507     static void
8508 nv_normal(cap)
8509     cmdarg_T	*cap;
8510 {
8511     if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G)
8512     {
8513 	clearop(cap->oap);
8514 	if (restart_edit != 0 && mode_displayed)
8515 	    clear_cmdline = TRUE;		/* unshow mode later */
8516 	restart_edit = 0;
8517 #ifdef FEAT_CMDWIN
8518 	if (cmdwin_type != 0)
8519 	    cmdwin_result = Ctrl_C;
8520 #endif
8521 #ifdef FEAT_VISUAL
8522 	if (VIsual_active)
8523 	{
8524 	    end_visual_mode();		/* stop Visual */
8525 	    redraw_curbuf_later(INVERTED);
8526 	}
8527 #endif
8528 	/* CTRL-\ CTRL-G restarts Insert mode when 'insertmode' is set. */
8529 	if (cap->nchar == Ctrl_G && p_im)
8530 	    restart_edit = 'a';
8531     }
8532     else
8533 	clearopbeep(cap->oap);
8534 }
8535 
8536 /*
8537  * ESC in Normal mode: beep, but don't flush buffers.
8538  * Don't even beep if we are canceling a command.
8539  */
8540     static void
8541 nv_esc(cap)
8542     cmdarg_T	*cap;
8543 {
8544     int		no_reason;
8545 
8546     no_reason = (cap->oap->op_type == OP_NOP
8547 		&& cap->opcount == 0
8548 		&& cap->count0 == 0
8549 		&& cap->oap->regname == 0
8550 		&& !p_im);
8551 
8552     if (cap->arg)		/* TRUE for CTRL-C */
8553     {
8554 	if (restart_edit == 0
8555 #ifdef FEAT_CMDWIN
8556 		&& cmdwin_type == 0
8557 #endif
8558 #ifdef FEAT_VISUAL
8559 		&& !VIsual_active
8560 #endif
8561 		&& no_reason)
8562 	    MSG(_("Type  :quit<Enter>  to exit Vim"));
8563 
8564 	/* Don't reset "restart_edit" when 'insertmode' is set, it won't be
8565 	 * set again below when halfway a mapping. */
8566 	if (!p_im)
8567 	    restart_edit = 0;
8568 #ifdef FEAT_CMDWIN
8569 	if (cmdwin_type != 0)
8570 	{
8571 	    cmdwin_result = K_IGNORE;
8572 	    got_int = FALSE;	/* don't stop executing autocommands et al. */
8573 	    return;
8574 	}
8575 #endif
8576     }
8577 
8578 #ifdef FEAT_VISUAL
8579     if (VIsual_active)
8580     {
8581 	end_visual_mode();	/* stop Visual */
8582 	check_cursor_col();	/* make sure cursor is not beyond EOL */
8583 	curwin->w_set_curswant = TRUE;
8584 	redraw_curbuf_later(INVERTED);
8585     }
8586     else
8587 #endif
8588 	if (no_reason)
8589 	    vim_beep();
8590     clearop(cap->oap);
8591 
8592     /* A CTRL-C is often used at the start of a menu.  When 'insertmode' is
8593      * set return to Insert mode afterwards. */
8594     if (restart_edit == 0 && goto_im()
8595 #ifdef FEAT_EX_EXTRA
8596 	    && ex_normal_busy == 0
8597 #endif
8598 	    )
8599 	restart_edit = 'a';
8600 }
8601 
8602 /*
8603  * Handle "A", "a", "I", "i" and <Insert> commands.
8604  */
8605     static void
8606 nv_edit(cap)
8607     cmdarg_T *cap;
8608 {
8609     /* <Insert> is equal to "i" */
8610     if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
8611 	cap->cmdchar = 'i';
8612 
8613 #ifdef FEAT_VISUAL
8614     /* in Visual mode "A" and "I" are an operator */
8615     if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
8616 	v_visop(cap);
8617 
8618     /* in Visual mode and after an operator "a" and "i" are for text objects */
8619     else
8620 #endif
8621 	if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
8622 	    && (cap->oap->op_type != OP_NOP
8623 #ifdef FEAT_VISUAL
8624 		|| VIsual_active
8625 #endif
8626 		))
8627     {
8628 #ifdef FEAT_TEXTOBJ
8629 	nv_object(cap);
8630 #else
8631 	clearopbeep(cap->oap);
8632 #endif
8633     }
8634     else if (!curbuf->b_p_ma && !p_im)
8635     {
8636 	/* Only give this error when 'insertmode' is off. */
8637 	EMSG(_(e_modifiable));
8638 	clearop(cap->oap);
8639     }
8640     else if (!checkclearopq(cap->oap))
8641     {
8642 	switch (cap->cmdchar)
8643 	{
8644 	    case 'A':	/* "A"ppend after the line */
8645 		curwin->w_set_curswant = TRUE;
8646 #ifdef FEAT_VIRTUALEDIT
8647 		if (ve_flags == VE_ALL)
8648 		{
8649 		    int save_State = State;
8650 
8651 		    /* Pretent Insert mode here to allow the cursor on the
8652 		     * character past the end of the line */
8653 		    State = INSERT;
8654 		    coladvance((colnr_T)MAXCOL);
8655 		    State = save_State;
8656 		}
8657 		else
8658 #endif
8659 		    curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
8660 		break;
8661 
8662 	    case 'I':	/* "I"nsert before the first non-blank */
8663 		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
8664 		    beginline(BL_WHITE);
8665 		else
8666 		    beginline(BL_WHITE|BL_FIX);
8667 		break;
8668 
8669 	    case 'a':	/* "a"ppend is like "i"nsert on the next character. */
8670 #ifdef FEAT_VIRTUALEDIT
8671 		/* increment coladd when in virtual space, increment the
8672 		 * column otherwise, also to append after an unprintable char */
8673 		if (virtual_active()
8674 			&& (curwin->w_cursor.coladd > 0
8675 			    || *ml_get_cursor() == NUL
8676 			    || *ml_get_cursor() == TAB))
8677 		    curwin->w_cursor.coladd++;
8678 		else
8679 #endif
8680 		if (*ml_get_cursor() != NUL)
8681 		    inc_cursor();
8682 		break;
8683 	}
8684 
8685 #ifdef FEAT_VIRTUALEDIT
8686 	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
8687 	{
8688 	    int save_State = State;
8689 
8690 	    /* Pretent Insert mode here to allow the cursor on the
8691 	     * character past the end of the line */
8692 	    State = INSERT;
8693 	    coladvance(getviscol());
8694 	    State = save_State;
8695 	}
8696 #endif
8697 
8698 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
8699     }
8700 }
8701 
8702 /*
8703  * Invoke edit() and take care of "restart_edit" and the return value.
8704  */
8705     static void
8706 invoke_edit(cap, repl, cmd, startln)
8707     cmdarg_T	*cap;
8708     int		repl;		/* "r" or "gr" command */
8709     int		cmd;
8710     int		startln;
8711 {
8712     int		restart_edit_save = 0;
8713 
8714     /* Complicated: When the user types "a<C-O>a" we don't want to do Insert
8715      * mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
8716      * it. */
8717     if (repl || !stuff_empty())
8718 	restart_edit_save = restart_edit;
8719     else
8720 	restart_edit_save = 0;
8721 
8722     /* Always reset "restart_edit", this is not a restarted edit. */
8723     restart_edit = 0;
8724 
8725     if (edit(cmd, startln, cap->count1))
8726 	cap->retval |= CA_COMMAND_BUSY;
8727 
8728     if (restart_edit == 0)
8729 	restart_edit = restart_edit_save;
8730 }
8731 
8732 #ifdef FEAT_TEXTOBJ
8733 /*
8734  * "a" or "i" while an operator is pending or in Visual mode: object motion.
8735  */
8736     static void
8737 nv_object(cap)
8738     cmdarg_T	*cap;
8739 {
8740     int		flag;
8741     int		include;
8742     char_u	*mps_save;
8743 
8744     if (cap->cmdchar == 'i')
8745 	include = FALSE;    /* "ix" = inner object: exclude white space */
8746     else
8747 	include = TRUE;	    /* "ax" = an object: include white space */
8748 
8749     /* Make sure (), [], {} and <> are in 'matchpairs' */
8750     mps_save = curbuf->b_p_mps;
8751     curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";
8752 
8753     switch (cap->nchar)
8754     {
8755 	case 'w': /* "aw" = a word */
8756 		flag = current_word(cap->oap, cap->count1, include, FALSE);
8757 		break;
8758 	case 'W': /* "aW" = a WORD */
8759 		flag = current_word(cap->oap, cap->count1, include, TRUE);
8760 		break;
8761 	case 'b': /* "ab" = a braces block */
8762 	case '(':
8763 	case ')':
8764 		flag = current_block(cap->oap, cap->count1, include, '(', ')');
8765 		break;
8766 	case 'B': /* "aB" = a Brackets block */
8767 	case '{':
8768 	case '}':
8769 		flag = current_block(cap->oap, cap->count1, include, '{', '}');
8770 		break;
8771 	case '[': /* "a[" = a [] block */
8772 	case ']':
8773 		flag = current_block(cap->oap, cap->count1, include, '[', ']');
8774 		break;
8775 	case '<': /* "a<" = a <> block */
8776 	case '>':
8777 		flag = current_block(cap->oap, cap->count1, include, '<', '>');
8778 		break;
8779 	case 't': /* "at" = a tag block (xml and html) */
8780 		flag = current_tagblock(cap->oap, cap->count1, include);
8781 		break;
8782 	case 'p': /* "ap" = a paragraph */
8783 		flag = current_par(cap->oap, cap->count1, include, 'p');
8784 		break;
8785 	case 's': /* "as" = a sentence */
8786 		flag = current_sent(cap->oap, cap->count1, include);
8787 		break;
8788 	case '"': /* "a"" = a double quoted string */
8789 	case '\'': /* "a'" = a single quoted string */
8790 	case '`': /* "a`" = a backtick quoted string */
8791 		flag = current_quote(cap->oap, cap->count1, include,
8792 								  cap->nchar);
8793 		break;
8794 #if 0	/* TODO */
8795 	case 'S': /* "aS" = a section */
8796 	case 'f': /* "af" = a filename */
8797 	case 'u': /* "au" = a URL */
8798 #endif
8799 	default:
8800 		flag = FAIL;
8801 		break;
8802     }
8803 
8804     curbuf->b_p_mps = mps_save;
8805     if (flag == FAIL)
8806 	clearopbeep(cap->oap);
8807     adjust_cursor_col();
8808     curwin->w_set_curswant = TRUE;
8809 }
8810 #endif
8811 
8812 /*
8813  * "q" command: Start/stop recording.
8814  * "q:", "q/", "q?": edit command-line in command-line window.
8815  */
8816     static void
8817 nv_record(cap)
8818     cmdarg_T	*cap;
8819 {
8820     if (cap->oap->op_type == OP_FORMAT)
8821     {
8822 	/* "gqq" is the same as "gqgq": format line */
8823 	cap->cmdchar = 'g';
8824 	cap->nchar = 'q';
8825 	nv_operator(cap);
8826     }
8827     else if (!checkclearop(cap->oap))
8828     {
8829 #ifdef FEAT_CMDWIN
8830 	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
8831 	{
8832 	    stuffcharReadbuff(cap->nchar);
8833 	    stuffcharReadbuff(K_CMDWIN);
8834 	}
8835 	else
8836 #endif
8837 	    /* (stop) recording into a named register, unless executing a
8838 	     * register */
8839 	    if (!Exec_reg && do_record(cap->nchar) == FAIL)
8840 		clearopbeep(cap->oap);
8841     }
8842 }
8843 
8844 /*
8845  * Handle the "@r" command.
8846  */
8847     static void
8848 nv_at(cap)
8849     cmdarg_T	*cap;
8850 {
8851     if (checkclearop(cap->oap))
8852 	return;
8853 #ifdef FEAT_EVAL
8854     if (cap->nchar == '=')
8855     {
8856 	if (get_expr_register() == NUL)
8857 	    return;
8858     }
8859 #endif
8860     while (cap->count1-- && !got_int)
8861     {
8862 	if (do_execreg(cap->nchar, FALSE, FALSE) == FAIL)
8863 	{
8864 	    clearopbeep(cap->oap);
8865 	    break;
8866 	}
8867 	line_breakcheck();
8868     }
8869 }
8870 
8871 /*
8872  * Handle the CTRL-U and CTRL-D commands.
8873  */
8874     static void
8875 nv_halfpage(cap)
8876     cmdarg_T	*cap;
8877 {
8878     if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
8879 	    || (cap->cmdchar == Ctrl_D
8880 		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
8881 	clearopbeep(cap->oap);
8882     else if (!checkclearop(cap->oap))
8883 	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
8884 }
8885 
8886 /*
8887  * Handle "J" or "gJ" command.
8888  */
8889     static void
8890 nv_join(cap)
8891     cmdarg_T *cap;
8892 {
8893 #ifdef FEAT_VISUAL
8894     if (VIsual_active)	/* join the visual lines */
8895 	nv_operator(cap);
8896     else
8897 #endif
8898 	if (!checkclearop(cap->oap))
8899     {
8900 	if (cap->count0 <= 1)
8901 	    cap->count0 = 2;	    /* default for join is two lines! */
8902 	if (curwin->w_cursor.lnum + cap->count0 - 1 >
8903 						   curbuf->b_ml.ml_line_count)
8904 	    clearopbeep(cap->oap);  /* beyond last line */
8905 	else
8906 	{
8907 	    prep_redo(cap->oap->regname, cap->count0,
8908 			 NUL, cap->cmdchar, NUL, NUL, cap->nchar);
8909 	    do_do_join(cap->count0, cap->nchar == NUL);
8910 	}
8911     }
8912 }
8913 
8914 /*
8915  * "P", "gP", "p" and "gp" commands.
8916  */
8917     static void
8918 nv_put(cap)
8919     cmdarg_T  *cap;
8920 {
8921 #ifdef FEAT_VISUAL
8922     int		regname = 0;
8923     void	*reg1 = NULL, *reg2 = NULL;
8924     int		empty = FALSE;
8925     int		was_visual = FALSE;
8926 #endif
8927     int		dir;
8928     int		flags = 0;
8929 
8930     if (cap->oap->op_type != OP_NOP)
8931     {
8932 #ifdef FEAT_DIFF
8933 	/* "dp" is ":diffput" */
8934 	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
8935 	{
8936 	    clearop(cap->oap);
8937 	    nv_diffgetput(TRUE);
8938 	}
8939 	else
8940 #endif
8941 	clearopbeep(cap->oap);
8942     }
8943     else
8944     {
8945 	dir = (cap->cmdchar == 'P'
8946 		|| (cap->cmdchar == 'g' && cap->nchar == 'P'))
8947 							 ? BACKWARD : FORWARD;
8948 	prep_redo_cmd(cap);
8949 	if (cap->cmdchar == 'g')
8950 	    flags |= PUT_CURSEND;
8951 
8952 #ifdef FEAT_VISUAL
8953 	if (VIsual_active)
8954 	{
8955 	    /* Putting in Visual mode: The put text replaces the selected
8956 	     * text.  First delete the selected text, then put the new text.
8957 	     * Need to save and restore the registers that the delete
8958 	     * overwrites if the old contents is being put.
8959 	     */
8960 	    was_visual = TRUE;
8961 	    regname = cap->oap->regname;
8962 # ifdef FEAT_CLIPBOARD
8963 	    adjust_clip_reg(&regname);
8964 # endif
8965 	    if (regname == 0 || VIM_ISDIGIT(regname)
8966 # ifdef FEAT_CLIPBOARD
8967 		    || (clip_unnamed && (regname == '*' || regname == '+'))
8968 # endif
8969 
8970 		    )
8971 	    {
8972 		/* the delete is going to overwrite the register we want to
8973 		 * put, save it first. */
8974 		reg1 = get_register(regname, TRUE);
8975 	    }
8976 
8977 	    /* Now delete the selected text. */
8978 	    cap->cmdchar = 'd';
8979 	    cap->nchar = NUL;
8980 	    cap->oap->regname = NUL;
8981 	    nv_operator(cap);
8982 	    do_pending_operator(cap, 0, FALSE);
8983 	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
8984 
8985 	    /* delete PUT_LINE_BACKWARD; */
8986 	    cap->oap->regname = regname;
8987 
8988 	    if (reg1 != NULL)
8989 	    {
8990 		/* Delete probably changed the register we want to put, save
8991 		 * it first. Then put back what was there before the delete. */
8992 		reg2 = get_register(regname, FALSE);
8993 		put_register(regname, reg1);
8994 	    }
8995 
8996 	    /* When deleted a linewise Visual area, put the register as
8997 	     * lines to avoid it joined with the next line.  When deletion was
8998 	     * characterwise, split a line when putting lines. */
8999 	    if (VIsual_mode == 'V')
9000 		flags |= PUT_LINE;
9001 	    else if (VIsual_mode == 'v')
9002 		flags |= PUT_LINE_SPLIT;
9003 	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
9004 		flags |= PUT_LINE_FORWARD;
9005 	    dir = BACKWARD;
9006 	    if ((VIsual_mode != 'V'
9007 			&& curwin->w_cursor.col < curbuf->b_op_start.col)
9008 		    || (VIsual_mode == 'V'
9009 			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
9010 		/* cursor is at the end of the line or end of file, put
9011 		 * forward. */
9012 		dir = FORWARD;
9013 	}
9014 #endif
9015 	do_put(cap->oap->regname, dir, cap->count1, flags);
9016 
9017 #ifdef FEAT_VISUAL
9018 	/* If a register was saved, put it back now. */
9019 	if (reg2 != NULL)
9020 	    put_register(regname, reg2);
9021 
9022 	/* What to reselect with "gv"?  Selecting the just put text seems to
9023 	 * be the most useful, since the original text was removed. */
9024 	if (was_visual)
9025 	{
9026 	    curbuf->b_visual.vi_start = curbuf->b_op_start;
9027 	    curbuf->b_visual.vi_end = curbuf->b_op_end;
9028 	}
9029 
9030 	/* When all lines were selected and deleted do_put() leaves an empty
9031 	 * line that needs to be deleted now. */
9032 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
9033 	{
9034 	    ml_delete(curbuf->b_ml.ml_line_count, TRUE);
9035 
9036 	    /* If the cursor was in that line, move it to the end of the last
9037 	     * line. */
9038 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
9039 	    {
9040 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
9041 		coladvance((colnr_T)MAXCOL);
9042 	    }
9043 	}
9044 #endif
9045 	auto_format(FALSE, TRUE);
9046     }
9047 }
9048 
9049 /*
9050  * "o" and "O" commands.
9051  */
9052     static void
9053 nv_open(cap)
9054     cmdarg_T	*cap;
9055 {
9056 #ifdef FEAT_DIFF
9057     /* "do" is ":diffget" */
9058     if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
9059     {
9060 	clearop(cap->oap);
9061 	nv_diffgetput(FALSE);
9062     }
9063     else
9064 #endif
9065 #ifdef FEAT_VISUAL
9066     if (VIsual_active)  /* switch start and end of visual */
9067 	v_swap_corners(cap->cmdchar);
9068     else
9069 #endif
9070 	n_opencmd(cap);
9071 }
9072 
9073 #ifdef FEAT_SNIFF
9074 /*ARGSUSED*/
9075     static void
9076 nv_sniff(cap)
9077     cmdarg_T	*cap;
9078 {
9079     ProcessSniffRequests();
9080 }
9081 #endif
9082 
9083 #ifdef FEAT_NETBEANS_INTG
9084     static void
9085 nv_nbcmd(cap)
9086     cmdarg_T	*cap;
9087 {
9088     netbeans_keycommand(cap->nchar);
9089 }
9090 #endif
9091 
9092 #ifdef FEAT_DND
9093 /*ARGSUSED*/
9094     static void
9095 nv_drop(cap)
9096     cmdarg_T	*cap;
9097 {
9098     do_put('~', BACKWARD, 1L, PUT_CURSEND);
9099 }
9100 #endif
9101 
9102 #ifdef FEAT_AUTOCMD
9103 /*
9104  * Trigger CursorHold event.
9105  * When waiting for a character for 'updatetime' K_CURSORHOLD is put in the
9106  * input buffer.  "did_cursorhold" is set to avoid retriggering.
9107  */
9108 /*ARGSUSED*/
9109     static void
9110 nv_cursorhold(cap)
9111     cmdarg_T	*cap;
9112 {
9113     apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
9114     did_cursorhold = TRUE;
9115     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
9116 }
9117 #endif
9118