xref: /vim-8.2.3635/src/normal.c (revision 3577c6fa)
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 #ifdef FEAT_EVAL
145 static void	set_op_var __ARGS((int optype));
146 #endif
147 static void	nv_lineop __ARGS((cmdarg_T *cap));
148 static void	nv_home __ARGS((cmdarg_T *cap));
149 static void	nv_pipe __ARGS((cmdarg_T *cap));
150 static void	nv_bck_word __ARGS((cmdarg_T *cap));
151 static void	nv_wordcmd __ARGS((cmdarg_T *cap));
152 static void	nv_beginline __ARGS((cmdarg_T *cap));
153 static void	adjust_cursor __ARGS((oparg_T *oap));
154 #ifdef FEAT_VISUAL
155 static void	adjust_for_sel __ARGS((cmdarg_T *cap));
156 static int	unadjust_for_sel __ARGS((void));
157 static void	nv_select __ARGS((cmdarg_T *cap));
158 #endif
159 static void	nv_goto __ARGS((cmdarg_T *cap));
160 static void	nv_normal __ARGS((cmdarg_T *cap));
161 static void	nv_esc __ARGS((cmdarg_T *oap));
162 static void	nv_edit __ARGS((cmdarg_T *cap));
163 static void	invoke_edit __ARGS((cmdarg_T *cap, int repl, int cmd, int startln));
164 #ifdef FEAT_TEXTOBJ
165 static void	nv_object __ARGS((cmdarg_T *cap));
166 #endif
167 static void	nv_record __ARGS((cmdarg_T *cap));
168 static void	nv_at __ARGS((cmdarg_T *cap));
169 static void	nv_halfpage __ARGS((cmdarg_T *cap));
170 static void	nv_join __ARGS((cmdarg_T *cap));
171 static void	nv_put __ARGS((cmdarg_T *cap));
172 static void	nv_open __ARGS((cmdarg_T *cap));
173 #ifdef FEAT_SNIFF
174 static void	nv_sniff __ARGS((cmdarg_T *cap));
175 #endif
176 #ifdef FEAT_NETBEANS_INTG
177 static void	nv_nbcmd __ARGS((cmdarg_T *cap));
178 #endif
179 #ifdef FEAT_DND
180 static void	nv_drop __ARGS((cmdarg_T *cap));
181 #endif
182 #ifdef FEAT_AUTOCMD
183 static void	nv_cursorhold __ARGS((cmdarg_T *cap));
184 #endif
185 
186 /*
187  * Function to be called for a Normal or Visual mode command.
188  * The argument is a cmdarg_T.
189  */
190 typedef void (*nv_func_T) __ARGS((cmdarg_T *cap));
191 
192 /* Values for cmd_flags. */
193 #define NV_NCH	    0x01	  /* may need to get a second char */
194 #define NV_NCH_NOP  (0x02|NV_NCH) /* get second char when no operator pending */
195 #define NV_NCH_ALW  (0x04|NV_NCH) /* always get a second char */
196 #define NV_LANG	    0x08	/* second char needs language adjustment */
197 
198 #define NV_SS	    0x10	/* may start selection */
199 #define NV_SSS	    0x20	/* may start selection with shift modifier */
200 #define NV_STS	    0x40	/* may stop selection without shift modif. */
201 #define NV_RL	    0x80	/* 'rightleft' modifies command */
202 #define NV_KEEPREG  0x100	/* don't clear regname */
203 #define NV_NCW	    0x200	/* not allowed in command-line window */
204 
205 /*
206  * Generally speaking, every Normal mode command should either clear any
207  * pending operator (with *clearop*()), or set the motion type variable
208  * oap->motion_type.
209  *
210  * When a cursor motion command is made, it is marked as being a character or
211  * line oriented motion.  Then, if an operator is in effect, the operation
212  * becomes character or line oriented accordingly.
213  */
214 
215 /*
216  * This table contains one entry for every Normal or Visual mode command.
217  * The order doesn't matter, init_normal_cmds() will create a sorted index.
218  * It is faster when all keys from zero to '~' are present.
219  */
220 static const struct nv_cmd
221 {
222     int		cmd_char;	/* (first) command character */
223     nv_func_T   cmd_func;	/* function for this command */
224     short_u	cmd_flags;	/* NV_ flags */
225     short	cmd_arg;	/* value for ca.arg */
226 } nv_cmds[] =
227 {
228     {NUL,	nv_error,	0,			0},
229     {Ctrl_A,	nv_addsub,	0,			0},
230     {Ctrl_B,	nv_page,	NV_STS,			BACKWARD},
231     {Ctrl_C,	nv_esc,		0,			TRUE},
232     {Ctrl_D,	nv_halfpage,	0,			0},
233     {Ctrl_E,	nv_scroll_line,	0,			TRUE},
234     {Ctrl_F,	nv_page,	NV_STS,			FORWARD},
235     {Ctrl_G,	nv_ctrlg,	0,			0},
236     {Ctrl_H,	nv_ctrlh,	0,			0},
237     {Ctrl_I,	nv_pcmark,	0,			0},
238     {NL,	nv_down,	0,			FALSE},
239     {Ctrl_K,	nv_error,	0,			0},
240     {Ctrl_L,	nv_clear,	0,			0},
241     {Ctrl_M,	nv_down,	0,			TRUE},
242     {Ctrl_N,	nv_down,	NV_STS,			FALSE},
243     {Ctrl_O,	nv_ctrlo,	0,			0},
244     {Ctrl_P,	nv_up,		NV_STS,			FALSE},
245 #ifdef FEAT_VISUAL
246     {Ctrl_Q,	nv_visual,	0,			FALSE},
247 #else
248     {Ctrl_Q,	nv_ignore,	0,			0},
249 #endif
250     {Ctrl_R,	nv_redo,	0,			0},
251     {Ctrl_S,	nv_ignore,	0,			0},
252     {Ctrl_T,	nv_tagpop,	NV_NCW,			0},
253     {Ctrl_U,	nv_halfpage,	0,			0},
254 #ifdef FEAT_VISUAL
255     {Ctrl_V,	nv_visual,	0,			FALSE},
256     {'V',	nv_visual,	0,			FALSE},
257     {'v',	nv_visual,	0,			FALSE},
258 #else
259     {Ctrl_V,	nv_error,	0,			0},
260     {'V',	nv_error,	0,			0},
261     {'v',	nv_error,	0,			0},
262 #endif
263     {Ctrl_W,	nv_window,	0,			0},
264     {Ctrl_X,	nv_addsub,	0,			0},
265     {Ctrl_Y,	nv_scroll_line,	0,			FALSE},
266     {Ctrl_Z,	nv_suspend,	0,			0},
267     {ESC,	nv_esc,		0,			FALSE},
268     {Ctrl_BSL,	nv_normal,	NV_NCH_ALW,		0},
269     {Ctrl_RSB,	nv_ident,	NV_NCW,			0},
270     {Ctrl_HAT,	nv_hat,		NV_NCW,			0},
271     {Ctrl__,	nv_error,	0,			0},
272     {' ',	nv_right,	0,			0},
273     {'!',	nv_operator,	0,			0},
274     {'"',	nv_regname,	NV_NCH_NOP|NV_KEEPREG,	0},
275     {'#',	nv_ident,	0,			0},
276     {'$',	nv_dollar,	0,			0},
277     {'%',	nv_percent,	0,			0},
278     {'&',	nv_optrans,	0,			0},
279     {'\'',	nv_gomark,	NV_NCH_ALW,		TRUE},
280     {'(',	nv_brace,	0,			BACKWARD},
281     {')',	nv_brace,	0,			FORWARD},
282     {'*',	nv_ident,	0,			0},
283     {'+',	nv_down,	0,			TRUE},
284     {',',	nv_csearch,	0,			TRUE},
285     {'-',	nv_up,		0,			TRUE},
286     {'.',	nv_dot,		NV_KEEPREG,		0},
287     {'/',	nv_search,	0,			FALSE},
288     {'0',	nv_beginline,	0,			0},
289     {'1',	nv_ignore,	0,			0},
290     {'2',	nv_ignore,	0,			0},
291     {'3',	nv_ignore,	0,			0},
292     {'4',	nv_ignore,	0,			0},
293     {'5',	nv_ignore,	0,			0},
294     {'6',	nv_ignore,	0,			0},
295     {'7',	nv_ignore,	0,			0},
296     {'8',	nv_ignore,	0,			0},
297     {'9',	nv_ignore,	0,			0},
298     {':',	nv_colon,	0,			0},
299     {';',	nv_csearch,	0,			FALSE},
300     {'<',	nv_operator,	NV_RL,			0},
301     {'=',	nv_operator,	0,			0},
302     {'>',	nv_operator,	NV_RL,			0},
303     {'?',	nv_search,	0,			FALSE},
304     {'@',	nv_at,		NV_NCH_NOP,		FALSE},
305     {'A',	nv_edit,	0,			0},
306     {'B',	nv_bck_word,	0,			1},
307     {'C',	nv_abbrev,	NV_KEEPREG,		0},
308     {'D',	nv_abbrev,	NV_KEEPREG,		0},
309     {'E',	nv_wordcmd,	0,			TRUE},
310     {'F',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
311     {'G',	nv_goto,	0,			TRUE},
312     {'H',	nv_scroll,	0,			0},
313     {'I',	nv_edit,	0,			0},
314     {'J',	nv_join,	0,			0},
315     {'K',	nv_ident,	0,			0},
316     {'L',	nv_scroll,	0,			0},
317     {'M',	nv_scroll,	0,			0},
318     {'N',	nv_next,	0,			SEARCH_REV},
319     {'O',	nv_open,	0,			0},
320     {'P',	nv_put,		0,			0},
321     {'Q',	nv_exmode,	NV_NCW,			0},
322     {'R',	nv_Replace,	0,			FALSE},
323     {'S',	nv_subst,	NV_KEEPREG,		0},
324     {'T',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
325     {'U',	nv_Undo,	0,			0},
326     {'W',	nv_wordcmd,	0,			TRUE},
327     {'X',	nv_abbrev,	NV_KEEPREG,		0},
328     {'Y',	nv_abbrev,	NV_KEEPREG,		0},
329     {'Z',	nv_Zet,		NV_NCH_NOP|NV_NCW,	0},
330     {'[',	nv_brackets,	NV_NCH_ALW,		BACKWARD},
331     {'\\',	nv_error,	0,			0},
332     {']',	nv_brackets,	NV_NCH_ALW,		FORWARD},
333     {'^',	nv_beginline,	0,			BL_WHITE | BL_FIX},
334     {'_',	nv_lineop,	0,			0},
335     {'`',	nv_gomark,	NV_NCH_ALW,		FALSE},
336     {'a',	nv_edit,	NV_NCH,			0},
337     {'b',	nv_bck_word,	0,			0},
338     {'c',	nv_operator,	0,			0},
339     {'d',	nv_operator,	0,			0},
340     {'e',	nv_wordcmd,	0,			FALSE},
341     {'f',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
342     {'g',	nv_g_cmd,	NV_NCH_ALW,		FALSE},
343     {'h',	nv_left,	NV_RL,			0},
344     {'i',	nv_edit,	NV_NCH,			0},
345     {'j',	nv_down,	0,			FALSE},
346     {'k',	nv_up,		0,			FALSE},
347     {'l',	nv_right,	NV_RL,			0},
348     {'m',	nv_mark,	NV_NCH_NOP,		0},
349     {'n',	nv_next,	0,			0},
350     {'o',	nv_open,	0,			0},
351     {'p',	nv_put,		0,			0},
352     {'q',	nv_record,	NV_NCH,			0},
353     {'r',	nv_replace,	NV_NCH_NOP|NV_LANG,	0},
354     {'s',	nv_subst,	NV_KEEPREG,		0},
355     {'t',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
356     {'u',	nv_undo,	0,			0},
357     {'w',	nv_wordcmd,	0,			FALSE},
358     {'x',	nv_abbrev,	NV_KEEPREG,		0},
359     {'y',	nv_operator,	0,			0},
360     {'z',	nv_zet,		NV_NCH_ALW,		0},
361     {'{',	nv_findpar,	0,			BACKWARD},
362     {'|',	nv_pipe,	0,			0},
363     {'}',	nv_findpar,	0,			FORWARD},
364     {'~',	nv_tilde,	0,			0},
365 
366     /* pound sign */
367     {POUND,	nv_ident,	0,			0},
368 #ifdef FEAT_MOUSE
369     {K_MOUSEUP, nv_mousescroll,	0,			TRUE},
370     {K_MOUSEDOWN, nv_mousescroll, 0,			FALSE},
371     {K_LEFTMOUSE, nv_mouse,	0,			0},
372     {K_LEFTMOUSE_NM, nv_mouse,	0,			0},
373     {K_LEFTDRAG, nv_mouse,	0,			0},
374     {K_LEFTRELEASE, nv_mouse,	0,			0},
375     {K_LEFTRELEASE_NM, nv_mouse, 0,			0},
376     {K_MIDDLEMOUSE, nv_mouse,	0,			0},
377     {K_MIDDLEDRAG, nv_mouse,	0,			0},
378     {K_MIDDLERELEASE, nv_mouse,	0,			0},
379     {K_RIGHTMOUSE, nv_mouse,	0,			0},
380     {K_RIGHTDRAG, nv_mouse,	0,			0},
381     {K_RIGHTRELEASE, nv_mouse,	0,			0},
382     {K_X1MOUSE, nv_mouse,	0,			0},
383     {K_X1DRAG, nv_mouse,	0,			0},
384     {K_X1RELEASE, nv_mouse,	0,			0},
385     {K_X2MOUSE, nv_mouse,	0,			0},
386     {K_X2DRAG, nv_mouse,	0,			0},
387     {K_X2RELEASE, nv_mouse,	0,			0},
388 #endif
389     {K_IGNORE,	nv_ignore,	NV_KEEPREG,		0},
390     {K_NOP,	nv_nop,		0,			0},
391     {K_INS,	nv_edit,	0,			0},
392     {K_KINS,	nv_edit,	0,			0},
393     {K_BS,	nv_ctrlh,	0,			0},
394     {K_UP,	nv_up,		NV_SSS|NV_STS,		FALSE},
395     {K_S_UP,	nv_page,	NV_SS,			BACKWARD},
396     {K_DOWN,	nv_down,	NV_SSS|NV_STS,		FALSE},
397     {K_S_DOWN,	nv_page,	NV_SS,			FORWARD},
398     {K_LEFT,	nv_left,	NV_SSS|NV_STS|NV_RL,	0},
399     {K_S_LEFT,	nv_bck_word,	NV_SS|NV_RL,		0},
400     {K_C_LEFT,	nv_bck_word,	NV_SSS|NV_RL|NV_STS,	1},
401     {K_RIGHT,	nv_right,	NV_SSS|NV_STS|NV_RL,	0},
402     {K_S_RIGHT,	nv_wordcmd,	NV_SS|NV_RL,		FALSE},
403     {K_C_RIGHT,	nv_wordcmd,	NV_SSS|NV_RL|NV_STS,	TRUE},
404     {K_PAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
405     {K_KPAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
406     {K_PAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
407     {K_KPAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
408     {K_END,	nv_end,		NV_SSS|NV_STS,		FALSE},
409     {K_KEND,	nv_end,		NV_SSS|NV_STS,		FALSE},
410     {K_S_END,	nv_end,		NV_SS,			FALSE},
411     {K_C_END,	nv_end,		NV_SSS|NV_STS,		TRUE},
412     {K_HOME,	nv_home,	NV_SSS|NV_STS,		0},
413     {K_KHOME,	nv_home,	NV_SSS|NV_STS,		0},
414     {K_S_HOME,	nv_home,	NV_SS,			0},
415     {K_C_HOME,	nv_goto,	NV_SSS|NV_STS,		FALSE},
416     {K_DEL,	nv_abbrev,	0,			0},
417     {K_KDEL,	nv_abbrev,	0,			0},
418     {K_UNDO,	nv_kundo,	0,			0},
419     {K_HELP,	nv_help,	NV_NCW,			0},
420     {K_F1,	nv_help,	NV_NCW,			0},
421     {K_XF1,	nv_help,	NV_NCW,			0},
422 #ifdef FEAT_VISUAL
423     {K_SELECT,	nv_select,	0,			0},
424 #endif
425 #ifdef FEAT_GUI
426     {K_VER_SCROLLBAR, nv_ver_scrollbar, 0,		0},
427     {K_HOR_SCROLLBAR, nv_hor_scrollbar, 0,		0},
428 #endif
429 #ifdef FEAT_GUI_TABLINE
430     {K_TABLINE, nv_tabline,	0,			0},
431     {K_TABMENU, nv_tabmenu,	0,			0},
432 #endif
433 #ifdef FEAT_FKMAP
434     {K_F8,	farsi_fkey,	0,			0},
435     {K_F9,	farsi_fkey,	0,			0},
436 #endif
437 #ifdef FEAT_SNIFF
438     {K_SNIFF,	nv_sniff,	0,			0},
439 #endif
440 #ifdef FEAT_NETBEANS_INTG
441     {K_F21,	nv_nbcmd,	NV_NCH_ALW,		0},
442 #endif
443 #ifdef FEAT_DND
444     {K_DROP,	nv_drop,	NV_STS,			0},
445 #endif
446 #ifdef FEAT_AUTOCMD
447     {K_CURSORHOLD, nv_cursorhold, NV_KEEPREG,		0},
448 #endif
449 };
450 
451 /* Number of commands in nv_cmds[]. */
452 #define NV_CMDS_SIZE (sizeof(nv_cmds) / sizeof(struct nv_cmd))
453 
454 /* Sorted index of commands in nv_cmds[]. */
455 static short nv_cmd_idx[NV_CMDS_SIZE];
456 
457 /* The highest index for which
458  * nv_cmds[idx].cmd_char == nv_cmd_idx[nv_cmds[idx].cmd_char] */
459 static int nv_max_linear;
460 
461 /*
462  * Compare functions for qsort() below, that checks the command character
463  * through the index in nv_cmd_idx[].
464  */
465     static int
466 #ifdef __BORLANDC__
467 _RTLENTRYF
468 #endif
469 nv_compare(s1, s2)
470     const void	*s1;
471     const void	*s2;
472 {
473     int		c1, c2;
474 
475     /* The commands are sorted on absolute value. */
476     c1 = nv_cmds[*(const short *)s1].cmd_char;
477     c2 = nv_cmds[*(const short *)s2].cmd_char;
478     if (c1 < 0)
479 	c1 = -c1;
480     if (c2 < 0)
481 	c2 = -c2;
482     return c1 - c2;
483 }
484 
485 /*
486  * Initialize the nv_cmd_idx[] table.
487  */
488     void
489 init_normal_cmds()
490 {
491     int		i;
492 
493     /* Fill the index table with a one to one relation. */
494     for (i = 0; i < NV_CMDS_SIZE; ++i)
495 	nv_cmd_idx[i] = i;
496 
497     /* Sort the commands by the command character.  */
498     qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);
499 
500     /* Find the first entry that can't be indexed by the command character. */
501     for (i = 0; i < NV_CMDS_SIZE; ++i)
502 	if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
503 	    break;
504     nv_max_linear = i - 1;
505 }
506 
507 /*
508  * Search for a command in the commands table.
509  * Returns -1 for invalid command.
510  */
511     static int
512 find_command(cmdchar)
513     int		cmdchar;
514 {
515     int		i;
516     int		idx;
517     int		top, bot;
518     int		c;
519 
520 #ifdef FEAT_MBYTE
521     /* A multi-byte character is never a command. */
522     if (cmdchar >= 0x100)
523 	return -1;
524 #endif
525 
526     /* We use the absolute value of the character.  Special keys have a
527      * negative value, but are sorted on their absolute value. */
528     if (cmdchar < 0)
529 	cmdchar = -cmdchar;
530 
531     /* If the character is in the first part: The character is the index into
532      * nv_cmd_idx[]. */
533     if (cmdchar <= nv_max_linear)
534 	return nv_cmd_idx[cmdchar];
535 
536     /* Perform a binary search. */
537     bot = nv_max_linear + 1;
538     top = NV_CMDS_SIZE - 1;
539     idx = -1;
540     while (bot <= top)
541     {
542 	i = (top + bot) / 2;
543 	c = nv_cmds[nv_cmd_idx[i]].cmd_char;
544 	if (c < 0)
545 	    c = -c;
546 	if (cmdchar == c)
547 	{
548 	    idx = nv_cmd_idx[i];
549 	    break;
550 	}
551 	if (cmdchar > c)
552 	    bot = i + 1;
553 	else
554 	    top = i - 1;
555     }
556     return idx;
557 }
558 
559 /*
560  * Execute a command in Normal mode.
561  */
562 /*ARGSUSED*/
563     void
564 normal_cmd(oap, toplevel)
565     oparg_T	*oap;
566     int		toplevel;		/* TRUE when called from main() */
567 {
568     static long	opcount = 0;		/* ca.opcount saved here */
569     cmdarg_T	ca;			/* command arguments */
570     int		c;
571     int		ctrl_w = FALSE;		/* got CTRL-W command */
572     int		old_col = curwin->w_curswant;
573 #ifdef FEAT_CMDL_INFO
574     int		need_flushbuf;		/* need to call out_flush() */
575 #endif
576 #ifdef FEAT_VISUAL
577     pos_T	old_pos;		/* cursor position before command */
578     int		mapped_len;
579     static int	old_mapped_len = 0;
580 #endif
581     int		idx;
582 
583     vim_memset(&ca, 0, sizeof(ca));	/* also resets ca.retval */
584     ca.oap = oap;
585     ca.opcount = opcount;
586 
587 #ifdef FEAT_SNIFF
588     want_sniff_request = sniff_connected;
589 #endif
590 
591     /*
592      * If there is an operator pending, then the command we take this time
593      * will terminate it. Finish_op tells us to finish the operation before
594      * returning this time (unless the operation was cancelled).
595      */
596 #ifdef CURSOR_SHAPE
597     c = finish_op;
598 #endif
599     finish_op = (oap->op_type != OP_NOP);
600 #ifdef CURSOR_SHAPE
601     if (finish_op != c)
602     {
603 	ui_cursor_shape();		/* may show different cursor shape */
604 # ifdef FEAT_MOUSESHAPE
605 	update_mouseshape(-1);
606 # endif
607     }
608 #endif
609 
610     if (!finish_op && !oap->regname)
611 	ca.opcount = 0;
612 
613 #ifdef FEAT_VISUAL
614     mapped_len = typebuf_maplen();
615 #endif
616 
617     State = NORMAL_BUSY;
618 #ifdef USE_ON_FLY_SCROLL
619     dont_scroll = FALSE;	/* allow scrolling here */
620 #endif
621 
622     /*
623      * Get the command character from the user.
624      */
625     c = safe_vgetc();
626 
627 #ifdef FEAT_LANGMAP
628     LANGMAP_ADJUST(c, TRUE);
629 #endif
630 
631 #ifdef FEAT_VISUAL
632     /*
633      * If a mapping was started in Visual or Select mode, remember the length
634      * of the mapping.  This is used below to not return to Insert mode for as
635      * long as the mapping is being executed.
636      */
637     if (restart_edit == 0)
638 	old_mapped_len = 0;
639     else if (old_mapped_len
640 		|| (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0))
641 	old_mapped_len = typebuf_maplen();
642 #endif
643 
644     if (c == NUL)
645 	c = K_ZERO;
646 
647 #ifdef FEAT_VISUAL
648     /*
649      * In Select mode, typed text replaces the selection.
650      */
651     if (VIsual_active
652 	    && VIsual_select
653 	    && (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
654     {
655 	/* Fake a "c"hange command.  When "restart_edit" is set (e.g., because
656 	 * 'insertmode' is set) fake a "d"elete command, Insert mode will
657 	 * restart automatically.
658 	 * Insert the typed character in the typeahead buffer, so that it can
659 	 * be mapped in Insert mode.  Required for ":lmap" to work. */
660 	ins_char_typebuf(c);
661 	if (restart_edit != 0)
662 	    c = 'd';
663 	else
664 	    c = 'c';
665 	msg_nowait = TRUE;	/* don't delay going to insert mode */
666     }
667 #endif
668 
669 #ifdef FEAT_CMDL_INFO
670     need_flushbuf = add_to_showcmd(c);
671 #endif
672 
673 getcount:
674 #ifdef FEAT_VISUAL
675     if (!(VIsual_active && VIsual_select))
676 #endif
677     {
678 	/*
679 	 * Handle a count before a command and compute ca.count0.
680 	 * Note that '0' is a command and not the start of a count, but it's
681 	 * part of a count after other digits.
682 	 */
683 	while (    (c >= '1' && c <= '9')
684 		|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
685 	{
686 	    if (c == K_DEL || c == K_KDEL)
687 	    {
688 		ca.count0 /= 10;
689 #ifdef FEAT_CMDL_INFO
690 		del_from_showcmd(4);	/* delete the digit and ~@% */
691 #endif
692 	    }
693 	    else
694 		ca.count0 = ca.count0 * 10 + (c - '0');
695 	    if (ca.count0 < 0)	    /* got too large! */
696 		ca.count0 = 999999999L;
697 #ifdef FEAT_EVAL
698 	    /* Set v:count here, when called from main() and not a stuffed
699 	     * command, so that v:count can be used in an expression mapping
700 	     * right after the count. */
701 	    if (toplevel && stuff_empty())
702 		set_vcount(ca.count0, ca.count0 == 0 ? 1 : ca.count0);
703 #endif
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 = plain_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 = plain_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 #ifdef FEAT_AUTOCMD
904 	/* Don't generate a CursorHold event here, most commands can't handle
905 	 * it, e.g., nv_replace(), nv_csearch(). */
906 	did_cursorhold = TRUE;
907 #endif
908 	if (ca.cmdchar == 'g')
909 	{
910 	    /*
911 	     * For 'g' get the next character now, so that we can check for
912 	     * "gr", "g'" and "g`".
913 	     */
914 	    ca.nchar = plain_vgetc();
915 #ifdef FEAT_LANGMAP
916 	    LANGMAP_ADJUST(ca.nchar, TRUE);
917 #endif
918 #ifdef FEAT_CMDL_INFO
919 	    need_flushbuf |= add_to_showcmd(ca.nchar);
920 #endif
921 	    if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
922 						      || ca.nchar == Ctrl_BSL)
923 	    {
924 		cp = &ca.extra_char;	/* need to get a third character */
925 		if (ca.nchar != 'r')
926 		    lit = TRUE;			/* get it literally */
927 		else
928 		    repl = TRUE;		/* get it in replace mode */
929 	    }
930 	    else
931 		cp = NULL;		/* no third character needed */
932 	}
933 	else
934 	{
935 	    if (ca.cmdchar == 'r')		/* get it in replace mode */
936 		repl = TRUE;
937 	    cp = &ca.nchar;
938 	}
939 	lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));
940 
941 	/*
942 	 * Get a second or third character.
943 	 */
944 	if (cp != NULL)
945 	{
946 #ifdef CURSOR_SHAPE
947 	    if (repl)
948 	    {
949 		State = REPLACE;	/* pretend Replace mode */
950 		ui_cursor_shape();	/* show different cursor shape */
951 	    }
952 #endif
953 	    if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
954 	    {
955 		/* Allow mappings defined with ":lmap". */
956 		--no_mapping;
957 		--allow_keys;
958 		if (repl)
959 		    State = LREPLACE;
960 		else
961 		    State = LANGMAP;
962 		langmap_active = TRUE;
963 	    }
964 #ifdef USE_IM_CONTROL
965 	    save_smd = p_smd;
966 	    p_smd = FALSE;	/* Don't let the IM code show the mode here */
967 	    if (lang && curbuf->b_p_iminsert == B_IMODE_IM)
968 		im_set_active(TRUE);
969 #endif
970 
971 	    *cp = plain_vgetc();
972 
973 	    if (langmap_active)
974 	    {
975 		/* Undo the decrement done above */
976 		++no_mapping;
977 		++allow_keys;
978 		State = NORMAL_BUSY;
979 	    }
980 #ifdef USE_IM_CONTROL
981 	    if (lang)
982 	    {
983 		if (curbuf->b_p_iminsert != B_IMODE_LMAP)
984 		    im_save_status(&curbuf->b_p_iminsert);
985 		im_set_active(FALSE);
986 	    }
987 	    p_smd = save_smd;
988 #endif
989 #ifdef CURSOR_SHAPE
990 	    State = NORMAL_BUSY;
991 #endif
992 #ifdef FEAT_CMDL_INFO
993 	    need_flushbuf |= add_to_showcmd(*cp);
994 #endif
995 
996 	    if (!lit)
997 	    {
998 #ifdef FEAT_DIGRAPHS
999 		/* Typing CTRL-K gets a digraph. */
1000 		if (*cp == Ctrl_K
1001 			&& ((nv_cmds[idx].cmd_flags & NV_LANG)
1002 			    || cp == &ca.extra_char)
1003 			&& vim_strchr(p_cpo, CPO_DIGRAPH) == NULL)
1004 		{
1005 		    c = get_digraph(FALSE);
1006 		    if (c > 0)
1007 		    {
1008 			*cp = c;
1009 # ifdef FEAT_CMDL_INFO
1010 			/* Guessing how to update showcmd here... */
1011 			del_from_showcmd(3);
1012 			need_flushbuf |= add_to_showcmd(*cp);
1013 # endif
1014 		    }
1015 		}
1016 #endif
1017 
1018 #ifdef FEAT_LANGMAP
1019 		/* adjust chars > 127, except after "tTfFr" commands */
1020 		LANGMAP_ADJUST(*cp, !lang);
1021 #endif
1022 #ifdef FEAT_RIGHTLEFT
1023 		/* adjust Hebrew mapped char */
1024 		if (p_hkmap && lang && KeyTyped)
1025 		    *cp = hkmap(*cp);
1026 # ifdef FEAT_FKMAP
1027 		/* adjust Farsi mapped char */
1028 		if (p_fkmap && lang && KeyTyped)
1029 		    *cp = fkmap(*cp);
1030 # endif
1031 #endif
1032 	    }
1033 
1034 	    /*
1035 	     * When the next character is CTRL-\ a following CTRL-N means the
1036 	     * command is aborted and we go to Normal mode.
1037 	     */
1038 	    if (cp == &ca.extra_char
1039 		    && ca.nchar == Ctrl_BSL
1040 		    && (ca.extra_char == Ctrl_N || ca.extra_char == Ctrl_G))
1041 	    {
1042 		ca.cmdchar = Ctrl_BSL;
1043 		ca.nchar = ca.extra_char;
1044 		idx = find_command(ca.cmdchar);
1045 	    }
1046 	    else if (*cp == Ctrl_BSL)
1047 	    {
1048 		long towait = (p_ttm >= 0 ? p_ttm : p_tm);
1049 
1050 		/* There is a busy wait here when typing "f<C-\>" and then
1051 		 * something different from CTRL-N.  Can't be avoided. */
1052 		while ((c = vpeekc()) <= 0 && towait > 0L)
1053 		{
1054 		    do_sleep(towait > 50L ? 50L : towait);
1055 		    towait -= 50L;
1056 		}
1057 		if (c > 0)
1058 		{
1059 		    c = plain_vgetc();
1060 		    if (c != Ctrl_N && c != Ctrl_G)
1061 			vungetc(c);
1062 		    else
1063 		    {
1064 			ca.cmdchar = Ctrl_BSL;
1065 			ca.nchar = c;
1066 			idx = find_command(ca.cmdchar);
1067 		    }
1068 		}
1069 	    }
1070 
1071 #ifdef FEAT_MBYTE
1072 	    /* When getting a text character and the next character is a
1073 	     * multi-byte character, it could be a composing character.
1074 	     * However, don't wait for it to arrive. */
1075 	    while (enc_utf8 && lang && (c = vpeekc()) > 0
1076 				 && (c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1))
1077 	    {
1078 		c = plain_vgetc();
1079 		if (!utf_iscomposing(c))
1080 		{
1081 		    vungetc(c);		/* it wasn't, put it back */
1082 		    break;
1083 		}
1084 		else if (ca.ncharC1 == 0)
1085 		    ca.ncharC1 = c;
1086 		else
1087 		    ca.ncharC2 = c;
1088 	    }
1089 #endif
1090 	}
1091 	--no_mapping;
1092 	--allow_keys;
1093     }
1094 
1095 #ifdef FEAT_CMDL_INFO
1096     /*
1097      * Flush the showcmd characters onto the screen so we can see them while
1098      * the command is being executed.  Only do this when the shown command was
1099      * actually displayed, otherwise this will slow down a lot when executing
1100      * mappings.
1101      */
1102     if (need_flushbuf)
1103 	out_flush();
1104 #endif
1105 #ifdef FEAT_AUTOCMD
1106     did_cursorhold = FALSE;
1107 #endif
1108 
1109     State = NORMAL;
1110 
1111     if (ca.nchar == ESC)
1112     {
1113 	clearop(oap);
1114 	if (restart_edit == 0 && goto_im())
1115 	    restart_edit = 'a';
1116 	goto normal_end;
1117     }
1118 
1119     if (ca.cmdchar != K_IGNORE)
1120     {
1121 	msg_didout = FALSE;    /* don't scroll screen up for normal command */
1122 	msg_col = 0;
1123     }
1124 
1125 #ifdef FEAT_VISUAL
1126     old_pos = curwin->w_cursor;		/* remember where cursor was */
1127 
1128     /* When 'keymodel' contains "startsel" some keys start Select/Visual
1129      * mode. */
1130     if (!VIsual_active && km_startsel)
1131     {
1132 	if (nv_cmds[idx].cmd_flags & NV_SS)
1133 	{
1134 	    start_selection();
1135 	    unshift_special(&ca);
1136 	    idx = find_command(ca.cmdchar);
1137 	}
1138 	else if ((nv_cmds[idx].cmd_flags & NV_SSS)
1139 					   && (mod_mask & MOD_MASK_SHIFT))
1140 	{
1141 	    start_selection();
1142 	    mod_mask &= ~MOD_MASK_SHIFT;
1143 	}
1144     }
1145 #endif
1146 
1147     /*
1148      * Execute the command!
1149      * Call the command function found in the commands table.
1150      */
1151     ca.arg = nv_cmds[idx].cmd_arg;
1152     (nv_cmds[idx].cmd_func)(&ca);
1153 
1154     /*
1155      * If we didn't start or finish an operator, reset oap->regname, unless we
1156      * need it later.
1157      */
1158     if (!finish_op
1159 	    && !oap->op_type
1160 	    && (idx < 0 || !(nv_cmds[idx].cmd_flags & NV_KEEPREG)))
1161     {
1162 	clearop(oap);
1163 #ifdef FEAT_EVAL
1164 	set_reg_var('"');
1165 #endif
1166     }
1167 
1168 #ifdef FEAT_VISUAL
1169     /* Get the length of mapped chars again after typing a count, second
1170      * character or "z333<cr>". */
1171     if (old_mapped_len > 0)
1172 	old_mapped_len = typebuf_maplen();
1173 #endif
1174 
1175     /*
1176      * If an operation is pending, handle it...
1177      */
1178     do_pending_operator(&ca, old_col, FALSE);
1179 
1180     /*
1181      * Wait for a moment when a message is displayed that will be overwritten
1182      * by the mode message.
1183      * In Visual mode and with "^O" in Insert mode, a short message will be
1184      * overwritten by the mode message.  Wait a bit, until a key is hit.
1185      * In Visual mode, it's more important to keep the Visual area updated
1186      * than keeping a message (e.g. from a /pat search).
1187      * Only do this if the command was typed, not from a mapping.
1188      * Don't wait when emsg_silent is non-zero.
1189      * Also wait a bit after an error message, e.g. for "^O:".
1190      * Don't redraw the screen, it would remove the message.
1191      */
1192     if (       ((p_smd
1193 		    && msg_silent == 0
1194 		    && (restart_edit != 0
1195 #ifdef FEAT_VISUAL
1196 			|| (VIsual_active
1197 			    && old_pos.lnum == curwin->w_cursor.lnum
1198 			    && old_pos.col == curwin->w_cursor.col)
1199 #endif
1200 		       )
1201 		    && (clear_cmdline
1202 			|| redraw_cmdline)
1203 		    && (msg_didout || (msg_didany && msg_scroll))
1204 		    && !msg_nowait
1205 		    && KeyTyped)
1206 		|| (restart_edit != 0
1207 #ifdef FEAT_VISUAL
1208 		    && !VIsual_active
1209 #endif
1210 		    && (msg_scroll
1211 			|| emsg_on_display)))
1212 	    && oap->regname == 0
1213 	    && !(ca.retval & CA_COMMAND_BUSY)
1214 	    && stuff_empty()
1215 	    && typebuf_typed()
1216 	    && emsg_silent == 0
1217 	    && !did_wait_return
1218 	    && oap->op_type == OP_NOP)
1219     {
1220 	int	save_State = State;
1221 
1222 	/* Draw the cursor with the right shape here */
1223 	if (restart_edit != 0)
1224 	    State = INSERT;
1225 
1226 	/* If need to redraw, and there is a "keep_msg", redraw before the
1227 	 * delay */
1228 	if (must_redraw && keep_msg != NULL && !emsg_on_display)
1229 	{
1230 	    char_u	*kmsg;
1231 
1232 	    kmsg = keep_msg;
1233 	    keep_msg = NULL;
1234 	    /* showmode() will clear keep_msg, but we want to use it anyway */
1235 	    update_screen(0);
1236 	    /* now reset it, otherwise it's put in the history again */
1237 	    keep_msg = kmsg;
1238 	    msg_attr(kmsg, keep_msg_attr);
1239 	    vim_free(kmsg);
1240 	}
1241 	setcursor();
1242 	cursor_on();
1243 	out_flush();
1244 	if (msg_scroll || emsg_on_display)
1245 	    ui_delay(1000L, TRUE);	/* wait at least one second */
1246 	ui_delay(3000L, FALSE);		/* wait up to three seconds */
1247 	State = save_State;
1248 
1249 	msg_scroll = FALSE;
1250 	emsg_on_display = FALSE;
1251     }
1252 
1253     /*
1254      * Finish up after executing a Normal mode command.
1255      */
1256 normal_end:
1257 
1258     msg_nowait = FALSE;
1259 
1260     /* Reset finish_op, in case it was set */
1261 #ifdef CURSOR_SHAPE
1262     c = finish_op;
1263 #endif
1264     finish_op = FALSE;
1265 #ifdef CURSOR_SHAPE
1266     /* Redraw the cursor with another shape, if we were in Operator-pending
1267      * mode or did a replace command. */
1268     if (c || ca.cmdchar == 'r')
1269     {
1270 	ui_cursor_shape();		/* may show different cursor shape */
1271 # ifdef FEAT_MOUSESHAPE
1272 	update_mouseshape(-1);
1273 # endif
1274     }
1275 #endif
1276 
1277 #ifdef FEAT_CMDL_INFO
1278     if (oap->op_type == OP_NOP && oap->regname == 0)
1279 	clear_showcmd();
1280 #endif
1281 
1282     checkpcmark();		/* check if we moved since setting pcmark */
1283     vim_free(ca.searchbuf);
1284 
1285 #ifdef FEAT_MBYTE
1286     if (has_mbyte)
1287 	mb_adjust_cursor();
1288 #endif
1289 
1290 #ifdef FEAT_SCROLLBIND
1291     if (curwin->w_p_scb && toplevel)
1292     {
1293 	validate_cursor();	/* may need to update w_leftcol */
1294 	do_check_scrollbind(TRUE);
1295     }
1296 #endif
1297 
1298     /*
1299      * May restart edit(), if we got here with CTRL-O in Insert mode (but not
1300      * if still inside a mapping that started in Visual mode).
1301      * May switch from Visual to Select mode after CTRL-O command.
1302      */
1303     if (       oap->op_type == OP_NOP
1304 #ifdef FEAT_VISUAL
1305 	    && ((restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1306 		|| restart_VIsual_select == 1)
1307 #else
1308 	    && restart_edit != 0
1309 #endif
1310 	    && !(ca.retval & CA_COMMAND_BUSY)
1311 	    && stuff_empty()
1312 	    && oap->regname == 0)
1313     {
1314 #ifdef FEAT_VISUAL
1315 	if (restart_VIsual_select == 1)
1316 	{
1317 	    VIsual_select = TRUE;
1318 	    showmode();
1319 	    restart_VIsual_select = 0;
1320 	}
1321 #endif
1322 	if (restart_edit != 0
1323 #ifdef FEAT_VISUAL
1324 		&& !VIsual_active && old_mapped_len == 0
1325 #endif
1326 		)
1327 	    (void)edit(restart_edit, FALSE, 1L);
1328     }
1329 
1330 #ifdef FEAT_VISUAL
1331     if (restart_VIsual_select == 2)
1332 	restart_VIsual_select = 1;
1333 #endif
1334 
1335     /* Save count before an operator for next time. */
1336     opcount = ca.opcount;
1337 }
1338 
1339 /*
1340  * Handle an operator after visual mode or when the movement is finished
1341  */
1342     void
1343 do_pending_operator(cap, old_col, gui_yank)
1344     cmdarg_T	*cap;
1345     int		old_col;
1346     int		gui_yank;
1347 {
1348     oparg_T	*oap = cap->oap;
1349     pos_T	old_cursor;
1350     int		empty_region_error;
1351     int		restart_edit_save;
1352 
1353 #ifdef FEAT_VISUAL
1354     /* The visual area is remembered for redo */
1355     static int	    redo_VIsual_mode = NUL; /* 'v', 'V', or Ctrl-V */
1356     static linenr_T redo_VIsual_line_count; /* number of lines */
1357     static colnr_T  redo_VIsual_col;	    /* number of cols or end column */
1358     static long	    redo_VIsual_count;	    /* count for Visual operator */
1359 # ifdef FEAT_VIRTUALEDIT
1360     int		    include_line_break = FALSE;
1361 # endif
1362 #endif
1363 
1364 #if defined(FEAT_CLIPBOARD)
1365     /*
1366      * Yank the visual area into the GUI selection register before we operate
1367      * on it and lose it forever.
1368      * Don't do it if a specific register was specified, so that ""x"*P works.
1369      * This could call do_pending_operator() recursively, but that's OK
1370      * because gui_yank will be TRUE for the nested call.
1371      */
1372     if (clip_star.available
1373 	    && oap->op_type != OP_NOP
1374 	    && !gui_yank
1375 # ifdef FEAT_VISUAL
1376 	    && VIsual_active
1377 	    && !redo_VIsual_busy
1378 # endif
1379 	    && oap->regname == 0)
1380 	clip_auto_select();
1381 #endif
1382     old_cursor = curwin->w_cursor;
1383 
1384     /*
1385      * If an operation is pending, handle it...
1386      */
1387     if ((finish_op
1388 #ifdef FEAT_VISUAL
1389 		|| VIsual_active
1390 #endif
1391 		) && oap->op_type != OP_NOP)
1392     {
1393 #ifdef FEAT_VISUAL
1394 	oap->is_VIsual = VIsual_active;
1395 	if (oap->motion_force == 'V')
1396 	    oap->motion_type = MLINE;
1397 	else if (oap->motion_force == 'v')
1398 	{
1399 	    /* If the motion was linewise, "inclusive" will not have been set.
1400 	     * Use "exclusive" to be consistent.  Makes "dvj" work nice. */
1401 	    if (oap->motion_type == MLINE)
1402 		oap->inclusive = FALSE;
1403 	    /* If the motion already was characterwise, toggle "inclusive" */
1404 	    else if (oap->motion_type == MCHAR)
1405 		oap->inclusive = !oap->inclusive;
1406 	    oap->motion_type = MCHAR;
1407 	}
1408 	else if (oap->motion_force == Ctrl_V)
1409 	{
1410 	    /* Change line- or characterwise motion into Visual block mode. */
1411 	    VIsual_active = TRUE;
1412 	    VIsual = oap->start;
1413 	    VIsual_mode = Ctrl_V;
1414 	    VIsual_select = FALSE;
1415 	    VIsual_reselect = FALSE;
1416 	}
1417 #endif
1418 
1419 	/* only redo yank when 'y' flag is in 'cpoptions' */
1420 	/* never redo "zf" (define fold) */
1421 	if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1422 #ifdef FEAT_VISUAL
1423 		&& (!VIsual_active || oap->motion_force)
1424 #endif
1425 		&& cap->cmdchar != 'D'
1426 #ifdef FEAT_FOLDING
1427 		&& oap->op_type != OP_FOLD
1428 		&& oap->op_type != OP_FOLDOPEN
1429 		&& oap->op_type != OP_FOLDOPENREC
1430 		&& oap->op_type != OP_FOLDCLOSE
1431 		&& oap->op_type != OP_FOLDCLOSEREC
1432 		&& oap->op_type != OP_FOLDDEL
1433 		&& oap->op_type != OP_FOLDDELREC
1434 #endif
1435 		)
1436 	{
1437 	    prep_redo(oap->regname, cap->count0,
1438 		    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1439 		    oap->motion_force, cap->cmdchar, cap->nchar);
1440 	    if (cap->cmdchar == '/' || cap->cmdchar == '?') /* was a search */
1441 	    {
1442 		/*
1443 		 * If 'cpoptions' does not contain 'r', insert the search
1444 		 * pattern to really repeat the same command.
1445 		 */
1446 		if (vim_strchr(p_cpo, CPO_REDO) == NULL)
1447 		    AppendToRedobuffLit(cap->searchbuf, -1);
1448 		AppendToRedobuff(NL_STR);
1449 	    }
1450 	    else if (cap->cmdchar == ':')
1451 	    {
1452 		/* do_cmdline() has stored the first typed line in
1453 		 * "repeat_cmdline".  When several lines are typed repeating
1454 		 * won't be possible. */
1455 		if (repeat_cmdline == NULL)
1456 		    ResetRedobuff();
1457 		else
1458 		{
1459 		    AppendToRedobuffLit(repeat_cmdline, -1);
1460 		    AppendToRedobuff(NL_STR);
1461 		    vim_free(repeat_cmdline);
1462 		    repeat_cmdline = NULL;
1463 		}
1464 	    }
1465 	}
1466 
1467 #ifdef FEAT_VISUAL
1468 	if (redo_VIsual_busy)
1469 	{
1470 	    oap->start = curwin->w_cursor;
1471 	    curwin->w_cursor.lnum += redo_VIsual_line_count - 1;
1472 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1473 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1474 	    VIsual_mode = redo_VIsual_mode;
1475 	    if (VIsual_mode == 'v')
1476 	    {
1477 		if (redo_VIsual_line_count <= 1)
1478 		    curwin->w_cursor.col += redo_VIsual_col - 1;
1479 		else
1480 		    curwin->w_cursor.col = redo_VIsual_col;
1481 	    }
1482 	    if (redo_VIsual_col == MAXCOL)
1483 	    {
1484 		curwin->w_curswant = MAXCOL;
1485 		coladvance((colnr_T)MAXCOL);
1486 	    }
1487 	    cap->count0 = redo_VIsual_count;
1488 	    if (redo_VIsual_count != 0)
1489 		cap->count1 = redo_VIsual_count;
1490 	    else
1491 		cap->count1 = 1;
1492 	}
1493 	else if (VIsual_active)
1494 	{
1495 	    if (!gui_yank)
1496 	    {
1497 		/* Save the current VIsual area for '< and '> marks, and "gv" */
1498 		curbuf->b_visual.vi_start = VIsual;
1499 		curbuf->b_visual.vi_end = curwin->w_cursor;
1500 		curbuf->b_visual.vi_mode = VIsual_mode;
1501 		curbuf->b_visual.vi_curswant = curwin->w_curswant;
1502 # ifdef FEAT_EVAL
1503 		curbuf->b_visual_mode_eval = VIsual_mode;
1504 # endif
1505 	    }
1506 
1507 	    /* In Select mode, a linewise selection is operated upon like a
1508 	     * characterwise selection. */
1509 	    if (VIsual_select && VIsual_mode == 'V')
1510 	    {
1511 		if (lt(VIsual, curwin->w_cursor))
1512 		{
1513 		    VIsual.col = 0;
1514 		    curwin->w_cursor.col =
1515 			       (colnr_T)STRLEN(ml_get(curwin->w_cursor.lnum));
1516 		}
1517 		else
1518 		{
1519 		    curwin->w_cursor.col = 0;
1520 		    VIsual.col = (colnr_T)STRLEN(ml_get(VIsual.lnum));
1521 		}
1522 		VIsual_mode = 'v';
1523 	    }
1524 	    /* If 'selection' is "exclusive", backup one character for
1525 	     * charwise selections. */
1526 	    else if (VIsual_mode == 'v')
1527 	    {
1528 # ifdef FEAT_VIRTUALEDIT
1529 		include_line_break =
1530 # endif
1531 		    unadjust_for_sel();
1532 	    }
1533 
1534 	    oap->start = VIsual;
1535 	    if (VIsual_mode == 'V')
1536 		oap->start.col = 0;
1537 	}
1538 #endif /* FEAT_VISUAL */
1539 
1540 	/*
1541 	 * Set oap->start to the first position of the operated text, oap->end
1542 	 * to the end of the operated text.  w_cursor is equal to oap->start.
1543 	 */
1544 	if (lt(oap->start, curwin->w_cursor))
1545 	{
1546 #ifdef FEAT_FOLDING
1547 	    /* Include folded lines completely. */
1548 	    if (!VIsual_active)
1549 	    {
1550 		if (hasFolding(oap->start.lnum, &oap->start.lnum, NULL))
1551 		    oap->start.col = 0;
1552 		if (hasFolding(curwin->w_cursor.lnum, NULL,
1553 						      &curwin->w_cursor.lnum))
1554 		    curwin->w_cursor.col = (colnr_T)STRLEN(ml_get_curline());
1555 	    }
1556 #endif
1557 	    oap->end = curwin->w_cursor;
1558 	    curwin->w_cursor = oap->start;
1559 
1560 	    /* w_virtcol may have been updated; if the cursor goes back to its
1561 	     * previous position w_virtcol becomes invalid and isn't updated
1562 	     * automatically. */
1563 	    curwin->w_valid &= ~VALID_VIRTCOL;
1564 	}
1565 	else
1566 	{
1567 #ifdef FEAT_FOLDING
1568 	    /* Include folded lines completely. */
1569 	    if (!VIsual_active && oap->motion_type == MLINE)
1570 	    {
1571 		if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum,
1572 									NULL))
1573 		    curwin->w_cursor.col = 0;
1574 		if (hasFolding(oap->start.lnum, NULL, &oap->start.lnum))
1575 		    oap->start.col = (colnr_T)STRLEN(ml_get(oap->start.lnum));
1576 	    }
1577 #endif
1578 	    oap->end = oap->start;
1579 	    oap->start = curwin->w_cursor;
1580 	}
1581 
1582 	oap->line_count = oap->end.lnum - oap->start.lnum + 1;
1583 
1584 #ifdef FEAT_VIRTUALEDIT
1585 	/* Set "virtual_op" before resetting VIsual_active. */
1586 	virtual_op = virtual_active();
1587 #endif
1588 
1589 #ifdef FEAT_VISUAL
1590 	if (VIsual_active || redo_VIsual_busy)
1591 	{
1592 	    if (VIsual_mode == Ctrl_V)	/* block mode */
1593 	    {
1594 		colnr_T	    start, end;
1595 
1596 		oap->block_mode = TRUE;
1597 
1598 		getvvcol(curwin, &(oap->start),
1599 				      &oap->start_vcol, NULL, &oap->end_vcol);
1600 		if (!redo_VIsual_busy)
1601 		{
1602 		    getvvcol(curwin, &(oap->end), &start, NULL, &end);
1603 
1604 		    if (start < oap->start_vcol)
1605 			oap->start_vcol = start;
1606 		    if (end > oap->end_vcol)
1607 		    {
1608 			if (*p_sel == 'e' && start >= 1
1609 						&& start - 1 >= oap->end_vcol)
1610 			    oap->end_vcol = start - 1;
1611 			else
1612 			    oap->end_vcol = end;
1613 		    }
1614 		}
1615 
1616 		/* if '$' was used, get oap->end_vcol from longest line */
1617 		if (curwin->w_curswant == MAXCOL)
1618 		{
1619 		    curwin->w_cursor.col = MAXCOL;
1620 		    oap->end_vcol = 0;
1621 		    for (curwin->w_cursor.lnum = oap->start.lnum;
1622 			    curwin->w_cursor.lnum <= oap->end.lnum;
1623 						      ++curwin->w_cursor.lnum)
1624 		    {
1625 			getvvcol(curwin, &curwin->w_cursor, NULL, NULL, &end);
1626 			if (end > oap->end_vcol)
1627 			    oap->end_vcol = end;
1628 		    }
1629 		}
1630 		else if (redo_VIsual_busy)
1631 		    oap->end_vcol = oap->start_vcol + redo_VIsual_col - 1;
1632 		/*
1633 		 * Correct oap->end.col and oap->start.col to be the
1634 		 * upper-left and lower-right corner of the block area.
1635 		 *
1636 		 * (Actually, this does convert column positions into character
1637 		 * positions)
1638 		 */
1639 		curwin->w_cursor.lnum = oap->end.lnum;
1640 		coladvance(oap->end_vcol);
1641 		oap->end = curwin->w_cursor;
1642 
1643 		curwin->w_cursor = oap->start;
1644 		coladvance(oap->start_vcol);
1645 		oap->start = curwin->w_cursor;
1646 	    }
1647 
1648 	    if (!redo_VIsual_busy && !gui_yank)
1649 	    {
1650 		/*
1651 		 * Prepare to reselect and redo Visual: this is based on the
1652 		 * size of the Visual text
1653 		 */
1654 		resel_VIsual_mode = VIsual_mode;
1655 		if (curwin->w_curswant == MAXCOL)
1656 		    resel_VIsual_col = MAXCOL;
1657 		else if (VIsual_mode == Ctrl_V)
1658 		    resel_VIsual_col = oap->end_vcol - oap->start_vcol + 1;
1659 		else if (oap->line_count > 1)
1660 		    resel_VIsual_col = oap->end.col;
1661 		else
1662 		    resel_VIsual_col = oap->end.col - oap->start.col + 1;
1663 		resel_VIsual_line_count = oap->line_count;
1664 	    }
1665 
1666 	    /* can't redo yank (unless 'y' is in 'cpoptions') and ":" */
1667 	    if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1668 		    && oap->op_type != OP_COLON
1669 #ifdef FEAT_FOLDING
1670 		    && oap->op_type != OP_FOLD
1671 		    && oap->op_type != OP_FOLDOPEN
1672 		    && oap->op_type != OP_FOLDOPENREC
1673 		    && oap->op_type != OP_FOLDCLOSE
1674 		    && oap->op_type != OP_FOLDCLOSEREC
1675 		    && oap->op_type != OP_FOLDDEL
1676 		    && oap->op_type != OP_FOLDDELREC
1677 #endif
1678 		    && oap->motion_force == NUL
1679 		    )
1680 	    {
1681 		/* Prepare for redoing.  Only use the nchar field for "r",
1682 		 * otherwise it might be the second char of the operator. */
1683 		prep_redo(oap->regname, 0L, NUL, 'v',
1684 				get_op_char(oap->op_type),
1685 				get_extra_op_char(oap->op_type),
1686 				oap->op_type == OP_REPLACE ? cap->nchar : NUL);
1687 		if (!redo_VIsual_busy)
1688 		{
1689 		    redo_VIsual_mode = resel_VIsual_mode;
1690 		    redo_VIsual_col = resel_VIsual_col;
1691 		    redo_VIsual_line_count = resel_VIsual_line_count;
1692 		    redo_VIsual_count = cap->count0;
1693 		}
1694 	    }
1695 
1696 	    /*
1697 	     * oap->inclusive defaults to TRUE.
1698 	     * If oap->end is on a NUL (empty line) oap->inclusive becomes
1699 	     * FALSE.  This makes "d}P" and "v}dP" work the same.
1700 	     */
1701 	    if (oap->motion_force == NUL || oap->motion_type == MLINE)
1702 		oap->inclusive = TRUE;
1703 	    if (VIsual_mode == 'V')
1704 		oap->motion_type = MLINE;
1705 	    else
1706 	    {
1707 		oap->motion_type = MCHAR;
1708 		if (VIsual_mode != Ctrl_V && *ml_get_pos(&(oap->end)) == NUL
1709 # ifdef FEAT_VIRTUALEDIT
1710 			&& (include_line_break || !virtual_op)
1711 # endif
1712 			)
1713 		{
1714 		    oap->inclusive = FALSE;
1715 		    /* Try to include the newline, unless it's an operator
1716 		     * that works on lines only */
1717 		    if (*p_sel != 'o'
1718 			    && !op_on_lines(oap->op_type)
1719 			    && oap->end.lnum < curbuf->b_ml.ml_line_count)
1720 		    {
1721 			++oap->end.lnum;
1722 			oap->end.col = 0;
1723 # ifdef FEAT_VIRTUALEDIT
1724 			oap->end.coladd = 0;
1725 # endif
1726 			++oap->line_count;
1727 		    }
1728 		}
1729 	    }
1730 
1731 	    redo_VIsual_busy = FALSE;
1732 
1733 	    /*
1734 	     * Switch Visual off now, so screen updating does
1735 	     * not show inverted text when the screen is redrawn.
1736 	     * With OP_YANK and sometimes with OP_COLON and OP_FILTER there is
1737 	     * no screen redraw, so it is done here to remove the inverted
1738 	     * part.
1739 	     */
1740 	    if (!gui_yank)
1741 	    {
1742 		VIsual_active = FALSE;
1743 # ifdef FEAT_MOUSE
1744 		setmouse();
1745 		mouse_dragging = 0;
1746 # endif
1747 		if (mode_displayed)
1748 		    clear_cmdline = TRUE;   /* unshow visual mode later */
1749 #ifdef FEAT_CMDL_INFO
1750 		else
1751 		    clear_showcmd();
1752 #endif
1753 		if ((oap->op_type == OP_YANK
1754 			    || oap->op_type == OP_COLON
1755 			    || oap->op_type == OP_FUNCTION
1756 			    || oap->op_type == OP_FILTER)
1757 			&& oap->motion_force == NUL)
1758 		    redraw_curbuf_later(INVERTED);
1759 	    }
1760 	}
1761 #endif
1762 
1763 #ifdef FEAT_MBYTE
1764 	/* Include the trailing byte of a multi-byte char. */
1765 	if (has_mbyte && oap->inclusive)
1766 	{
1767 	    int		l;
1768 
1769 	    l = (*mb_ptr2len)(ml_get_pos(&oap->end));
1770 	    if (l > 1)
1771 		oap->end.col += l - 1;
1772 	}
1773 #endif
1774 	curwin->w_set_curswant = TRUE;
1775 
1776 	/*
1777 	 * oap->empty is set when start and end are the same.  The inclusive
1778 	 * flag affects this too, unless yanking and the end is on a NUL.
1779 	 */
1780 	oap->empty = (oap->motion_type == MCHAR
1781 		    && (!oap->inclusive
1782 			|| (oap->op_type == OP_YANK
1783 			    && gchar_pos(&oap->end) == NUL))
1784 		    && equalpos(oap->start, oap->end)
1785 #ifdef FEAT_VIRTUALEDIT
1786 		    && !(virtual_op && oap->start.coladd != oap->end.coladd)
1787 #endif
1788 		    );
1789 	/*
1790 	 * For delete, change and yank, it's an error to operate on an
1791 	 * empty region, when 'E' included in 'cpoptions' (Vi compatible).
1792 	 */
1793 	empty_region_error = (oap->empty
1794 				&& vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL);
1795 
1796 #ifdef FEAT_VISUAL
1797 	/* Force a redraw when operating on an empty Visual region, when
1798 	 * 'modifiable is off or creating a fold. */
1799 	if (oap->is_VIsual && (oap->empty || !curbuf->b_p_ma
1800 # ifdef FEAT_FOLDING
1801 		    || oap->op_type == OP_FOLD
1802 # endif
1803 		    ))
1804 	    redraw_curbuf_later(INVERTED);
1805 #endif
1806 
1807 	/*
1808 	 * If the end of an operator is in column one while oap->motion_type
1809 	 * is MCHAR and oap->inclusive is FALSE, we put op_end after the last
1810 	 * character in the previous line. If op_start is on or before the
1811 	 * first non-blank in the line, the operator becomes linewise
1812 	 * (strange, but that's the way vi does it).
1813 	 */
1814 	if (	   oap->motion_type == MCHAR
1815 		&& oap->inclusive == FALSE
1816 		&& !(cap->retval & CA_NO_ADJ_OP_END)
1817 		&& oap->end.col == 0
1818 #ifdef FEAT_VISUAL
1819 		&& (!oap->is_VIsual || *p_sel == 'o')
1820 		&& !oap->block_mode
1821 #endif
1822 		&& oap->line_count > 1)
1823 	{
1824 	    oap->end_adjusted = TRUE;	    /* remember that we did this */
1825 	    --oap->line_count;
1826 	    --oap->end.lnum;
1827 	    if (inindent(0))
1828 		oap->motion_type = MLINE;
1829 	    else
1830 	    {
1831 		oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
1832 		if (oap->end.col)
1833 		{
1834 		    --oap->end.col;
1835 		    oap->inclusive = TRUE;
1836 		}
1837 	    }
1838 	}
1839 	else
1840 	    oap->end_adjusted = FALSE;
1841 
1842 	switch (oap->op_type)
1843 	{
1844 	case OP_LSHIFT:
1845 	case OP_RSHIFT:
1846 	    op_shift(oap, TRUE,
1847 #ifdef FEAT_VISUAL
1848 		    oap->is_VIsual ? (int)cap->count1 :
1849 #endif
1850 		    1);
1851 	    auto_format(FALSE, TRUE);
1852 	    break;
1853 
1854 	case OP_JOIN_NS:
1855 	case OP_JOIN:
1856 	    if (oap->line_count < 2)
1857 		oap->line_count = 2;
1858 	    if (curwin->w_cursor.lnum + oap->line_count - 1 >
1859 						   curbuf->b_ml.ml_line_count)
1860 		beep_flush();
1861 	    else
1862 	    {
1863 		do_do_join(oap->line_count, oap->op_type == OP_JOIN);
1864 		auto_format(FALSE, TRUE);
1865 	    }
1866 	    break;
1867 
1868 	case OP_DELETE:
1869 #ifdef FEAT_VISUAL
1870 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1871 #endif
1872 	    if (empty_region_error)
1873 		vim_beep();
1874 	    else
1875 	    {
1876 		(void)op_delete(oap);
1877 		if (oap->motion_type == MLINE && has_format_option(FO_AUTO))
1878 		    u_save_cursor();	    /* cursor line wasn't saved yet */
1879 		auto_format(FALSE, TRUE);
1880 	    }
1881 	    break;
1882 
1883 	case OP_YANK:
1884 	    if (empty_region_error)
1885 	    {
1886 		if (!gui_yank)
1887 		    vim_beep();
1888 	    }
1889 	    else
1890 		(void)op_yank(oap, FALSE, !gui_yank);
1891 	    check_cursor_col();
1892 	    break;
1893 
1894 	case OP_CHANGE:
1895 #ifdef FEAT_VISUAL
1896 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1897 #endif
1898 	    if (empty_region_error)
1899 		vim_beep();
1900 	    else
1901 	    {
1902 		/* This is a new edit command, not a restart.  Need to
1903 		 * remember it to make 'insertmode' work with mappings for
1904 		 * Visual mode.  But do this only once and not when typed and
1905 		 * 'insertmode' isn't set. */
1906 		if (p_im || !KeyTyped)
1907 		    restart_edit_save = restart_edit;
1908 		else
1909 		    restart_edit_save = 0;
1910 		restart_edit = 0;
1911 		/* Reset finish_op now, don't want it set inside edit(). */
1912 		finish_op = FALSE;
1913 		if (op_change(oap))	/* will call edit() */
1914 		    cap->retval |= CA_COMMAND_BUSY;
1915 		if (restart_edit == 0)
1916 		    restart_edit = restart_edit_save;
1917 	    }
1918 	    break;
1919 
1920 	case OP_FILTER:
1921 	    if (vim_strchr(p_cpo, CPO_FILTER) != NULL)
1922 		AppendToRedobuff((char_u *)"!\r");  /* use any last used !cmd */
1923 	    else
1924 		bangredo = TRUE;    /* do_bang() will put cmd in redo buffer */
1925 
1926 	case OP_INDENT:
1927 	case OP_COLON:
1928 
1929 #if defined(FEAT_LISP) || defined(FEAT_CINDENT)
1930 	    /*
1931 	     * If 'equalprg' is empty, do the indenting internally.
1932 	     */
1933 	    if (oap->op_type == OP_INDENT && *get_equalprg() == NUL)
1934 	    {
1935 # ifdef FEAT_LISP
1936 		if (curbuf->b_p_lisp)
1937 		{
1938 		    op_reindent(oap, get_lisp_indent);
1939 		    break;
1940 		}
1941 # endif
1942 # ifdef FEAT_CINDENT
1943 		op_reindent(oap,
1944 #  ifdef FEAT_EVAL
1945 			*curbuf->b_p_inde != NUL ? get_expr_indent :
1946 #  endif
1947 			    get_c_indent);
1948 		break;
1949 # endif
1950 	    }
1951 #endif
1952 
1953 	    op_colon(oap);
1954 	    break;
1955 
1956 	case OP_TILDE:
1957 	case OP_UPPER:
1958 	case OP_LOWER:
1959 	case OP_ROT13:
1960 	    if (empty_region_error)
1961 		vim_beep();
1962 	    else
1963 		op_tilde(oap);
1964 	    check_cursor_col();
1965 	    break;
1966 
1967 	case OP_FORMAT:
1968 #if defined(FEAT_EVAL)
1969 	    if (*curbuf->b_p_fex != NUL)
1970 		op_formatexpr(oap);	/* use expression */
1971 	    else
1972 #endif
1973 		if (*p_fp != NUL)
1974 		op_colon(oap);		/* use external command */
1975 	    else
1976 		op_format(oap, FALSE);	/* use internal function */
1977 	    break;
1978 
1979 	case OP_FORMAT2:
1980 	    op_format(oap, TRUE);	/* use internal function */
1981 	    break;
1982 
1983 	case OP_FUNCTION:
1984 	    op_function(oap);		/* call 'operatorfunc' */
1985 	    break;
1986 
1987 	case OP_INSERT:
1988 	case OP_APPEND:
1989 #ifdef FEAT_VISUAL
1990 	    VIsual_reselect = FALSE;	/* don't reselect now */
1991 #endif
1992 #ifdef FEAT_VISUALEXTRA
1993 	    if (empty_region_error)
1994 		vim_beep();
1995 	    else
1996 	    {
1997 		/* This is a new edit command, not a restart.  Need to
1998 		 * remember it to make 'insertmode' work with mappings for
1999 		 * Visual mode.  But do this only once. */
2000 		restart_edit_save = restart_edit;
2001 		restart_edit = 0;
2002 
2003 		op_insert(oap, cap->count1);
2004 
2005 		/* TODO: when inserting in several lines, should format all
2006 		 * the lines. */
2007 		auto_format(FALSE, TRUE);
2008 
2009 		if (restart_edit == 0)
2010 		    restart_edit = restart_edit_save;
2011 	    }
2012 #else
2013 	    vim_beep();
2014 #endif
2015 	    break;
2016 
2017 	case OP_REPLACE:
2018 #ifdef FEAT_VISUAL
2019 	    VIsual_reselect = FALSE;	/* don't reselect now */
2020 #endif
2021 #ifdef FEAT_VISUALEXTRA
2022 	    if (empty_region_error)
2023 #endif
2024 		vim_beep();
2025 #ifdef FEAT_VISUALEXTRA
2026 	    else
2027 		op_replace(oap, cap->nchar);
2028 #endif
2029 	    break;
2030 
2031 #ifdef FEAT_FOLDING
2032 	case OP_FOLD:
2033 	    VIsual_reselect = FALSE;	/* don't reselect now */
2034 	    foldCreate(oap->start.lnum, oap->end.lnum);
2035 	    break;
2036 
2037 	case OP_FOLDOPEN:
2038 	case OP_FOLDOPENREC:
2039 	case OP_FOLDCLOSE:
2040 	case OP_FOLDCLOSEREC:
2041 	    VIsual_reselect = FALSE;	/* don't reselect now */
2042 	    opFoldRange(oap->start.lnum, oap->end.lnum,
2043 		    oap->op_type == OP_FOLDOPEN
2044 					    || oap->op_type == OP_FOLDOPENREC,
2045 		    oap->op_type == OP_FOLDOPENREC
2046 					  || oap->op_type == OP_FOLDCLOSEREC,
2047 					  oap->is_VIsual);
2048 	    break;
2049 
2050 	case OP_FOLDDEL:
2051 	case OP_FOLDDELREC:
2052 	    VIsual_reselect = FALSE;	/* don't reselect now */
2053 	    deleteFold(oap->start.lnum, oap->end.lnum,
2054 			       oap->op_type == OP_FOLDDELREC, oap->is_VIsual);
2055 	    break;
2056 #endif
2057 	default:
2058 	    clearopbeep(oap);
2059 	}
2060 #ifdef FEAT_VIRTUALEDIT
2061 	virtual_op = MAYBE;
2062 #endif
2063 	if (!gui_yank)
2064 	{
2065 	    /*
2066 	     * if 'sol' not set, go back to old column for some commands
2067 	     */
2068 	    if (!p_sol && oap->motion_type == MLINE && !oap->end_adjusted
2069 		    && (oap->op_type == OP_LSHIFT || oap->op_type == OP_RSHIFT
2070 						|| oap->op_type == OP_DELETE))
2071 		coladvance(curwin->w_curswant = old_col);
2072 	}
2073 	else
2074 	{
2075 	    curwin->w_cursor = old_cursor;
2076 	}
2077 #ifdef FEAT_VISUAL
2078 	oap->block_mode = FALSE;
2079 #endif
2080 	clearop(oap);
2081     }
2082 }
2083 
2084 /*
2085  * Handle indent and format operators and visual mode ":".
2086  */
2087     static void
2088 op_colon(oap)
2089     oparg_T	*oap;
2090 {
2091     stuffcharReadbuff(':');
2092 #ifdef FEAT_VISUAL
2093     if (oap->is_VIsual)
2094 	stuffReadbuff((char_u *)"'<,'>");
2095     else
2096 #endif
2097     {
2098 	/*
2099 	 * Make the range look nice, so it can be repeated.
2100 	 */
2101 	if (oap->start.lnum == curwin->w_cursor.lnum)
2102 	    stuffcharReadbuff('.');
2103 	else
2104 	    stuffnumReadbuff((long)oap->start.lnum);
2105 	if (oap->end.lnum != oap->start.lnum)
2106 	{
2107 	    stuffcharReadbuff(',');
2108 	    if (oap->end.lnum == curwin->w_cursor.lnum)
2109 		stuffcharReadbuff('.');
2110 	    else if (oap->end.lnum == curbuf->b_ml.ml_line_count)
2111 		stuffcharReadbuff('$');
2112 	    else if (oap->start.lnum == curwin->w_cursor.lnum)
2113 	    {
2114 		stuffReadbuff((char_u *)".+");
2115 		stuffnumReadbuff((long)oap->line_count - 1);
2116 	    }
2117 	    else
2118 		stuffnumReadbuff((long)oap->end.lnum);
2119 	}
2120     }
2121     if (oap->op_type != OP_COLON)
2122 	stuffReadbuff((char_u *)"!");
2123     if (oap->op_type == OP_INDENT)
2124     {
2125 #ifndef FEAT_CINDENT
2126 	if (*get_equalprg() == NUL)
2127 	    stuffReadbuff((char_u *)"indent");
2128 	else
2129 #endif
2130 	    stuffReadbuff(get_equalprg());
2131 	stuffReadbuff((char_u *)"\n");
2132     }
2133     else if (oap->op_type == OP_FORMAT)
2134     {
2135 	if (*p_fp == NUL)
2136 	    stuffReadbuff((char_u *)"fmt");
2137 	else
2138 	    stuffReadbuff(p_fp);
2139 	stuffReadbuff((char_u *)"\n']");
2140     }
2141 
2142     /*
2143      * do_cmdline() does the rest
2144      */
2145 }
2146 
2147 /*
2148  * Handle the "g@" operator: call 'operatorfunc'.
2149  */
2150 /*ARGSUSED*/
2151     static void
2152 op_function(oap)
2153     oparg_T	*oap;
2154 {
2155 #ifdef FEAT_EVAL
2156     char_u	*(argv[1]);
2157 
2158     if (*p_opfunc == NUL)
2159 	EMSG(_("E774: 'operatorfunc' is empty"));
2160     else
2161     {
2162 	/* Set '[ and '] marks to text to be operated on. */
2163 	curbuf->b_op_start = oap->start;
2164 	curbuf->b_op_end = oap->end;
2165 	if (oap->motion_type != MLINE && !oap->inclusive)
2166 	    /* Exclude the end position. */
2167 	    decl(&curbuf->b_op_end);
2168 
2169 	if (oap->block_mode)
2170 	    argv[0] = (char_u *)"block";
2171 	else if (oap->motion_type == MLINE)
2172 	    argv[0] = (char_u *)"line";
2173 	else
2174 	    argv[0] = (char_u *)"char";
2175 	(void)call_func_retnr(p_opfunc, 1, argv, FALSE);
2176     }
2177 #else
2178     EMSG(_("E775: Eval feature not available"));
2179 #endif
2180 }
2181 
2182 #if defined(FEAT_MOUSE) || defined(PROTO)
2183 /*
2184  * Do the appropriate action for the current mouse click in the current mode.
2185  * Not used for Command-line mode.
2186  *
2187  * Normal Mode:
2188  * event	 modi-	position      visual	   change   action
2189  *		 fier	cursor			   window
2190  * left press	  -	yes	    end		    yes
2191  * left press	  C	yes	    end		    yes	    "^]" (2)
2192  * left press	  S	yes	    end		    yes	    "*" (2)
2193  * left drag	  -	yes	start if moved	    no
2194  * left relse	  -	yes	start if moved	    no
2195  * middle press	  -	yes	 if not active	    no	    put register
2196  * middle press	  -	yes	 if active	    no	    yank and put
2197  * right press	  -	yes	start or extend	    yes
2198  * right press	  S	yes	no change	    yes	    "#" (2)
2199  * right drag	  -	yes	extend		    no
2200  * right relse	  -	yes	extend		    no
2201  *
2202  * Insert or Replace Mode:
2203  * event	 modi-	position      visual	   change   action
2204  *		 fier	cursor			   window
2205  * left press	  -	yes	(cannot be active)  yes
2206  * left press	  C	yes	(cannot be active)  yes	    "CTRL-O^]" (2)
2207  * left press	  S	yes	(cannot be active)  yes	    "CTRL-O*" (2)
2208  * left drag	  -	yes	start or extend (1) no	    CTRL-O (1)
2209  * left relse	  -	yes	start or extend (1) no	    CTRL-O (1)
2210  * middle press	  -	no	(cannot be active)  no	    put register
2211  * right press	  -	yes	start or extend	    yes	    CTRL-O
2212  * right press	  S	yes	(cannot be active)  yes	    "CTRL-O#" (2)
2213  *
2214  * (1) only if mouse pointer moved since press
2215  * (2) only if click is in same buffer
2216  *
2217  * Return TRUE if start_arrow() should be called for edit mode.
2218  */
2219     int
2220 do_mouse(oap, c, dir, count, fixindent)
2221     oparg_T	*oap;		/* operator argument, can be NULL */
2222     int		c;		/* K_LEFTMOUSE, etc */
2223     int		dir;		/* Direction to 'put' if necessary */
2224     long	count;
2225     int		fixindent;	/* PUT_FIXINDENT if fixing indent necessary */
2226 {
2227     static int	do_always = FALSE;	/* ignore 'mouse' setting next time */
2228     static int	got_click = FALSE;	/* got a click some time back */
2229 
2230     int		which_button;	/* MOUSE_LEFT, _MIDDLE or _RIGHT */
2231     int		is_click;	/* If FALSE it's a drag or release event */
2232     int		is_drag;	/* If TRUE it's a drag event */
2233     int		jump_flags = 0;	/* flags for jump_to_mouse() */
2234     pos_T	start_visual;
2235     int		moved;		/* Has cursor moved? */
2236     int		in_status_line;	/* mouse in status line */
2237 #ifdef FEAT_VERTSPLIT
2238     int		in_sep_line;	/* mouse in vertical separator line */
2239 #endif
2240     int		c1, c2;
2241 #if defined(FEAT_FOLDING)
2242     pos_T	save_cursor;
2243 #endif
2244     win_T	*old_curwin = curwin;
2245 #ifdef FEAT_VISUAL
2246     static pos_T orig_cursor;
2247     colnr_T	leftcol, rightcol;
2248     pos_T	end_visual;
2249     int		diff;
2250     int		old_active = VIsual_active;
2251     int		old_mode = VIsual_mode;
2252 #endif
2253     int		regname;
2254 
2255 #if defined(FEAT_FOLDING)
2256     save_cursor = curwin->w_cursor;
2257 #endif
2258 
2259     /*
2260      * When GUI is active, always recognize mouse events, otherwise:
2261      * - Ignore mouse event in normal mode if 'mouse' doesn't include 'n'.
2262      * - Ignore mouse event in visual mode if 'mouse' doesn't include 'v'.
2263      * - For command line and insert mode 'mouse' is checked before calling
2264      *	 do_mouse().
2265      */
2266     if (do_always)
2267 	do_always = FALSE;
2268     else
2269 #ifdef FEAT_GUI
2270 	if (!gui.in_use)
2271 #endif
2272 	{
2273 #ifdef FEAT_VISUAL
2274 	    if (VIsual_active)
2275 	    {
2276 		if (!mouse_has(MOUSE_VISUAL))
2277 		    return FALSE;
2278 	    }
2279 	    else
2280 #endif
2281 		if (State == NORMAL && !mouse_has(MOUSE_NORMAL))
2282 		return FALSE;
2283 	}
2284 
2285     which_button = get_mouse_button(KEY2TERMCAP1(c), &is_click, &is_drag);
2286 
2287 #ifdef FEAT_MOUSESHAPE
2288     /* May have stopped dragging the status or separator line.  The pointer is
2289      * most likely still on the status or separator line. */
2290     if (!is_drag && drag_status_line)
2291     {
2292 	drag_status_line = FALSE;
2293 	update_mouseshape(SHAPE_IDX_STATUS);
2294     }
2295 # ifdef FEAT_VERTSPLIT
2296     if (!is_drag && drag_sep_line)
2297     {
2298 	drag_sep_line = FALSE;
2299 	update_mouseshape(SHAPE_IDX_VSEP);
2300     }
2301 # endif
2302 #endif
2303 
2304     /*
2305      * Ignore drag and release events if we didn't get a click.
2306      */
2307     if (is_click)
2308 	got_click = TRUE;
2309     else
2310     {
2311 	if (!got_click)			/* didn't get click, ignore */
2312 	    return FALSE;
2313 	if (!is_drag)			/* release, reset got_click */
2314 	    got_click = FALSE;
2315     }
2316 
2317 #ifndef FEAT_VISUAL
2318     /*
2319      * ALT is only used for starging/extending Visual mode.
2320      */
2321     if ((mod_mask & MOD_MASK_ALT))
2322 	return FALSE;
2323 #endif
2324 
2325     /*
2326      * CTRL right mouse button does CTRL-T
2327      */
2328     if (is_click && (mod_mask & MOD_MASK_CTRL) && which_button == MOUSE_RIGHT)
2329     {
2330 	if (State & INSERT)
2331 	    stuffcharReadbuff(Ctrl_O);
2332 	if (count > 1)
2333 	    stuffnumReadbuff(count);
2334 	stuffcharReadbuff(Ctrl_T);
2335 	got_click = FALSE;		/* ignore drag&release now */
2336 	return FALSE;
2337     }
2338 
2339     /*
2340      * CTRL only works with left mouse button
2341      */
2342     if ((mod_mask & MOD_MASK_CTRL) && which_button != MOUSE_LEFT)
2343 	return FALSE;
2344 
2345     /*
2346      * When a modifier is down, ignore drag and release events, as well as
2347      * multiple clicks and the middle mouse button.
2348      * Accept shift-leftmouse drags when 'mousemodel' is "popup.*".
2349      */
2350     if ((mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL | MOD_MASK_ALT
2351 							     | MOD_MASK_META))
2352 	    && (!is_click
2353 		|| (mod_mask & MOD_MASK_MULTI_CLICK)
2354 		|| which_button == MOUSE_MIDDLE)
2355 	    && !((mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT))
2356 		&& mouse_model_popup()
2357 		&& which_button == MOUSE_LEFT)
2358 	    && !((mod_mask & MOD_MASK_ALT)
2359 		&& !mouse_model_popup()
2360 		&& which_button == MOUSE_RIGHT)
2361 	    )
2362 	return FALSE;
2363 
2364     /*
2365      * If the button press was used as the movement command for an operator
2366      * (eg "d<MOUSE>"), or it is the middle button that is held down, ignore
2367      * drag/release events.
2368      */
2369     if (!is_click && which_button == MOUSE_MIDDLE)
2370 	return FALSE;
2371 
2372     if (oap != NULL)
2373 	regname = oap->regname;
2374     else
2375 	regname = 0;
2376 
2377     /*
2378      * Middle mouse button does a 'put' of the selected text
2379      */
2380     if (which_button == MOUSE_MIDDLE)
2381     {
2382 	if (State == NORMAL)
2383 	{
2384 	    /*
2385 	     * If an operator was pending, we don't know what the user wanted
2386 	     * to do. Go back to normal mode: Clear the operator and beep().
2387 	     */
2388 	    if (oap != NULL && oap->op_type != OP_NOP)
2389 	    {
2390 		clearopbeep(oap);
2391 		return FALSE;
2392 	    }
2393 
2394 #ifdef FEAT_VISUAL
2395 	    /*
2396 	     * If visual was active, yank the highlighted text and put it
2397 	     * before the mouse pointer position.
2398 	     * In Select mode replace the highlighted text with the clipboard.
2399 	     */
2400 	    if (VIsual_active)
2401 	    {
2402 		if (VIsual_select)
2403 		{
2404 		    stuffcharReadbuff(Ctrl_G);
2405 		    stuffReadbuff((char_u *)"\"+p");
2406 		}
2407 		else
2408 		{
2409 		    stuffcharReadbuff('y');
2410 		    stuffcharReadbuff(K_MIDDLEMOUSE);
2411 		}
2412 		do_always = TRUE;	/* ignore 'mouse' setting next time */
2413 		return FALSE;
2414 	    }
2415 #endif
2416 	    /*
2417 	     * The rest is below jump_to_mouse()
2418 	     */
2419 	}
2420 
2421 	else if ((State & INSERT) == 0)
2422 	    return FALSE;
2423 
2424 	/*
2425 	 * Middle click in insert mode doesn't move the mouse, just insert the
2426 	 * contents of a register.  '.' register is special, can't insert that
2427 	 * with do_put().
2428 	 * Also paste at the cursor if the current mode isn't in 'mouse' (only
2429 	 * happens for the GUI).
2430 	 */
2431 	if ((State & INSERT) || !mouse_has(MOUSE_NORMAL))
2432 	{
2433 	    if (regname == '.')
2434 		insert_reg(regname, TRUE);
2435 	    else
2436 	    {
2437 #ifdef FEAT_CLIPBOARD
2438 		if (clip_star.available && regname == 0)
2439 		    regname = '*';
2440 #endif
2441 		if ((State & REPLACE_FLAG) && !yank_register_mline(regname))
2442 		    insert_reg(regname, TRUE);
2443 		else
2444 		{
2445 		    do_put(regname, BACKWARD, 1L, fixindent | PUT_CURSEND);
2446 
2447 		    /* Repeat it with CTRL-R CTRL-O r or CTRL-R CTRL-P r */
2448 		    AppendCharToRedobuff(Ctrl_R);
2449 		    AppendCharToRedobuff(fixindent ? Ctrl_P : Ctrl_O);
2450 		    AppendCharToRedobuff(regname == 0 ? '"' : regname);
2451 		}
2452 	    }
2453 	    return FALSE;
2454 	}
2455     }
2456 
2457     /* When dragging or button-up stay in the same window. */
2458     if (!is_click)
2459 	jump_flags |= MOUSE_FOCUS | MOUSE_DID_MOVE;
2460 
2461     start_visual.lnum = 0;
2462 
2463 #ifdef FEAT_WINDOWS
2464     /* Check for clicking in the tab page line. */
2465     if (mouse_row == 0 && firstwin->w_winrow > 0)
2466     {
2467 	if (is_drag)
2468 	    return FALSE;
2469 	got_click = FALSE;	/* ignore mouse-up and drag events */
2470 
2471 	/* click in a tab selects that tab page */
2472 	if (is_click
2473 # ifdef FEAT_CMDWIN
2474 		&& cmdwin_type == 0
2475 # endif
2476 		&& mouse_col < Columns)
2477 	{
2478 	    c1 = TabPageIdxs[mouse_col];
2479 	    if (c1 >= 0)
2480 	    {
2481 		if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2482 		{
2483 		    /* double click opens new page */
2484 		    end_visual_mode();
2485 		    tabpage_new();
2486 		    tabpage_move(c1 == 0 ? 9999 : c1 - 1);
2487 		}
2488 		else
2489 		{
2490 		    /* Go to specified tab page, or next one if not clicking
2491 		     * on a label. */
2492 		    goto_tabpage(c1);
2493 
2494 		    /* It's like clicking on the status line of a window. */
2495 		    if (curwin != old_curwin)
2496 			end_visual_mode();
2497 		}
2498 	    }
2499 	    else if (c1 < 0)
2500 	    {
2501 		tabpage_T	*tp;
2502 
2503 		/* Close the current or specified tab page. */
2504 		if (c1 == -999)
2505 		    tp = curtab;
2506 		else
2507 		    tp = find_tabpage(-c1);
2508 		if (tp == curtab)
2509 		{
2510 		    if (first_tabpage->tp_next != NULL)
2511 			tabpage_close(FALSE);
2512 		}
2513 		else if (tp != NULL)
2514 		    tabpage_close_other(tp, FALSE);
2515 	    }
2516 	}
2517 	return TRUE;
2518     }
2519 #endif
2520 
2521     /*
2522      * When 'mousemodel' is "popup" or "popup_setpos", translate mouse events:
2523      * right button up   -> pop-up menu
2524      * shift-left button -> right button
2525      * alt-left button   -> alt-right button
2526      */
2527     if (mouse_model_popup())
2528     {
2529 	if (which_button == MOUSE_RIGHT
2530 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2531 	{
2532 	    /*
2533 	     * NOTE: Ignore right button down and drag mouse events.
2534 	     * Windows only shows the popup menu on the button up event.
2535 	     */
2536 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) \
2537 			  || defined(FEAT_GUI_PHOTON) || defined(FEAT_GUI_MAC)
2538 	    if (!is_click)
2539 		return FALSE;
2540 #endif
2541 #if defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN)
2542 	    if (is_click || is_drag)
2543 		return FALSE;
2544 #endif
2545 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) \
2546 	    || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \
2547 	    || defined(FEAT_GUI_MAC) || defined(FEAT_GUI_PHOTON)
2548 	    if (gui.in_use)
2549 	    {
2550 		jump_flags = 0;
2551 		if (STRCMP(p_mousem, "popup_setpos") == 0)
2552 		{
2553 		    /* First set the cursor position before showing the popup
2554 		     * menu. */
2555 #ifdef FEAT_VISUAL
2556 		    if (VIsual_active)
2557 		    {
2558 			pos_T    m_pos;
2559 
2560 			/*
2561 			 * set MOUSE_MAY_STOP_VIS if we are outside the
2562 			 * selection or the current window (might have false
2563 			 * negative here)
2564 			 */
2565 			if (mouse_row < W_WINROW(curwin)
2566 			     || mouse_row
2567 				      > (W_WINROW(curwin) + curwin->w_height))
2568 			    jump_flags = MOUSE_MAY_STOP_VIS;
2569 			else if (get_fpos_of_mouse(&m_pos) != IN_BUFFER)
2570 			    jump_flags = MOUSE_MAY_STOP_VIS;
2571 			else
2572 			{
2573 			    if ((lt(curwin->w_cursor, VIsual)
2574 					&& (lt(m_pos, curwin->w_cursor)
2575 					    || lt(VIsual, m_pos)))
2576 				    || (lt(VIsual, curwin->w_cursor)
2577 					&& (lt(m_pos, VIsual)
2578 					    || lt(curwin->w_cursor, m_pos))))
2579 			    {
2580 				jump_flags = MOUSE_MAY_STOP_VIS;
2581 			    }
2582 			    else if (VIsual_mode == Ctrl_V)
2583 			    {
2584 				getvcols(curwin, &curwin->w_cursor, &VIsual,
2585 							 &leftcol, &rightcol);
2586 				getvcol(curwin, &m_pos, NULL, &m_pos.col, NULL);
2587 				if (m_pos.col < leftcol || m_pos.col > rightcol)
2588 				    jump_flags = MOUSE_MAY_STOP_VIS;
2589 			    }
2590 			}
2591 		    }
2592 		    else
2593 			jump_flags = MOUSE_MAY_STOP_VIS;
2594 #endif
2595 		}
2596 		if (jump_flags)
2597 		{
2598 		    jump_flags = jump_to_mouse(jump_flags, NULL, which_button);
2599 		    update_curbuf(
2600 #ifdef FEAT_VISUAL
2601 			    VIsual_active ? INVERTED :
2602 #endif
2603 			    VALID);
2604 		    setcursor();
2605 		    out_flush();    /* Update before showing popup menu */
2606 		}
2607 # ifdef FEAT_MENU
2608 		gui_show_popupmenu();
2609 # endif
2610 		return (jump_flags & CURSOR_MOVED) != 0;
2611 	    }
2612 	    else
2613 		return FALSE;
2614 #else
2615 	    return FALSE;
2616 #endif
2617 	}
2618 	if (which_button == MOUSE_LEFT
2619 				&& (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT)))
2620 	{
2621 	    which_button = MOUSE_RIGHT;
2622 	    mod_mask &= ~MOD_MASK_SHIFT;
2623 	}
2624     }
2625 
2626 #ifdef FEAT_VISUAL
2627     if ((State & (NORMAL | INSERT))
2628 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2629     {
2630 	if (which_button == MOUSE_LEFT)
2631 	{
2632 	    if (is_click)
2633 	    {
2634 		/* stop Visual mode for a left click in a window, but not when
2635 		 * on a status line */
2636 		if (VIsual_active)
2637 		    jump_flags |= MOUSE_MAY_STOP_VIS;
2638 	    }
2639 	    else if (mouse_has(MOUSE_VISUAL))
2640 		jump_flags |= MOUSE_MAY_VIS;
2641 	}
2642 	else if (which_button == MOUSE_RIGHT)
2643 	{
2644 	    if (is_click && VIsual_active)
2645 	    {
2646 		/*
2647 		 * Remember the start and end of visual before moving the
2648 		 * cursor.
2649 		 */
2650 		if (lt(curwin->w_cursor, VIsual))
2651 		{
2652 		    start_visual = curwin->w_cursor;
2653 		    end_visual = VIsual;
2654 		}
2655 		else
2656 		{
2657 		    start_visual = VIsual;
2658 		    end_visual = curwin->w_cursor;
2659 		}
2660 	    }
2661 	    jump_flags |= MOUSE_FOCUS;
2662 	    if (mouse_has(MOUSE_VISUAL))
2663 		jump_flags |= MOUSE_MAY_VIS;
2664 	}
2665     }
2666 #endif
2667 
2668     /*
2669      * If an operator is pending, ignore all drags and releases until the
2670      * next mouse click.
2671      */
2672     if (!is_drag && oap != NULL && oap->op_type != OP_NOP)
2673     {
2674 	got_click = FALSE;
2675 	oap->motion_type = MCHAR;
2676     }
2677 
2678     /* When releasing the button let jump_to_mouse() know. */
2679     if (!is_click && !is_drag)
2680 	jump_flags |= MOUSE_RELEASED;
2681 
2682     /*
2683      * JUMP!
2684      */
2685     jump_flags = jump_to_mouse(jump_flags,
2686 			oap == NULL ? NULL : &(oap->inclusive), which_button);
2687     moved = (jump_flags & CURSOR_MOVED);
2688     in_status_line = (jump_flags & IN_STATUS_LINE);
2689 #ifdef FEAT_VERTSPLIT
2690     in_sep_line = (jump_flags & IN_SEP_LINE);
2691 #endif
2692 
2693 #ifdef FEAT_NETBEANS_INTG
2694     if (usingNetbeans && isNetbeansBuffer(curbuf)
2695 			    && !(jump_flags & (IN_STATUS_LINE | IN_SEP_LINE)))
2696     {
2697 	int key = KEY2TERMCAP1(c);
2698 
2699 	if (key == (int)KE_LEFTRELEASE || key == (int)KE_MIDDLERELEASE
2700 					       || key == (int)KE_RIGHTRELEASE)
2701 	    netbeans_button_release(which_button);
2702     }
2703 #endif
2704 
2705     /* When jumping to another window, clear a pending operator.  That's a bit
2706      * friendlier than beeping and not jumping to that window. */
2707     if (curwin != old_curwin && oap != NULL && oap->op_type != OP_NOP)
2708 	clearop(oap);
2709 
2710 #ifdef FEAT_FOLDING
2711     if (mod_mask == 0
2712 	    && !is_drag
2713 	    && (jump_flags & (MOUSE_FOLD_CLOSE | MOUSE_FOLD_OPEN))
2714 	    && which_button == MOUSE_LEFT)
2715     {
2716 	/* open or close a fold at this line */
2717 	if (jump_flags & MOUSE_FOLD_OPEN)
2718 	    openFold(curwin->w_cursor.lnum, 1L);
2719 	else
2720 	    closeFold(curwin->w_cursor.lnum, 1L);
2721 	/* don't move the cursor if still in the same window */
2722 	if (curwin == old_curwin)
2723 	    curwin->w_cursor = save_cursor;
2724     }
2725 #endif
2726 
2727 #if defined(FEAT_CLIPBOARD) && defined(FEAT_CMDWIN)
2728     if ((jump_flags & IN_OTHER_WIN) && !VIsual_active && clip_star.available)
2729     {
2730 	clip_modeless(which_button, is_click, is_drag);
2731 	return FALSE;
2732     }
2733 #endif
2734 
2735 #ifdef FEAT_VISUAL
2736     /* Set global flag that we are extending the Visual area with mouse
2737      * dragging; temporarily minimize 'scrolloff'. */
2738     if (VIsual_active && is_drag && p_so)
2739     {
2740 	/* In the very first line, allow scrolling one line */
2741 	if (mouse_row == 0)
2742 	    mouse_dragging = 2;
2743 	else
2744 	    mouse_dragging = 1;
2745     }
2746 
2747     /* When dragging the mouse above the window, scroll down. */
2748     if (is_drag && mouse_row < 0 && !in_status_line)
2749     {
2750 	scroll_redraw(FALSE, 1L);
2751 	mouse_row = 0;
2752     }
2753 
2754     if (start_visual.lnum)		/* right click in visual mode */
2755     {
2756        /* When ALT is pressed make Visual mode blockwise. */
2757        if (mod_mask & MOD_MASK_ALT)
2758 	   VIsual_mode = Ctrl_V;
2759 
2760 	/*
2761 	 * In Visual-block mode, divide the area in four, pick up the corner
2762 	 * that is in the quarter that the cursor is in.
2763 	 */
2764 	if (VIsual_mode == Ctrl_V)
2765 	{
2766 	    getvcols(curwin, &start_visual, &end_visual, &leftcol, &rightcol);
2767 	    if (curwin->w_curswant > (leftcol + rightcol) / 2)
2768 		end_visual.col = leftcol;
2769 	    else
2770 		end_visual.col = rightcol;
2771 	    if (curwin->w_cursor.lnum <
2772 				    (start_visual.lnum + end_visual.lnum) / 2)
2773 		end_visual.lnum = end_visual.lnum;
2774 	    else
2775 		end_visual.lnum = start_visual.lnum;
2776 
2777 	    /* move VIsual to the right column */
2778 	    start_visual = curwin->w_cursor;	    /* save the cursor pos */
2779 	    curwin->w_cursor = end_visual;
2780 	    coladvance(end_visual.col);
2781 	    VIsual = curwin->w_cursor;
2782 	    curwin->w_cursor = start_visual;	    /* restore the cursor */
2783 	}
2784 	else
2785 	{
2786 	    /*
2787 	     * If the click is before the start of visual, change the start.
2788 	     * If the click is after the end of visual, change the end.  If
2789 	     * the click is inside the visual, change the closest side.
2790 	     */
2791 	    if (lt(curwin->w_cursor, start_visual))
2792 		VIsual = end_visual;
2793 	    else if (lt(end_visual, curwin->w_cursor))
2794 		VIsual = start_visual;
2795 	    else
2796 	    {
2797 		/* In the same line, compare column number */
2798 		if (end_visual.lnum == start_visual.lnum)
2799 		{
2800 		    if (curwin->w_cursor.col - start_visual.col >
2801 				    end_visual.col - curwin->w_cursor.col)
2802 			VIsual = start_visual;
2803 		    else
2804 			VIsual = end_visual;
2805 		}
2806 
2807 		/* In different lines, compare line number */
2808 		else
2809 		{
2810 		    diff = (curwin->w_cursor.lnum - start_visual.lnum) -
2811 				(end_visual.lnum - curwin->w_cursor.lnum);
2812 
2813 		    if (diff > 0)		/* closest to end */
2814 			VIsual = start_visual;
2815 		    else if (diff < 0)	/* closest to start */
2816 			VIsual = end_visual;
2817 		    else			/* in the middle line */
2818 		    {
2819 			if (curwin->w_cursor.col <
2820 					(start_visual.col + end_visual.col) / 2)
2821 			    VIsual = end_visual;
2822 			else
2823 			    VIsual = start_visual;
2824 		    }
2825 		}
2826 	    }
2827 	}
2828     }
2829     /*
2830      * If Visual mode started in insert mode, execute "CTRL-O"
2831      */
2832     else if ((State & INSERT) && VIsual_active)
2833 	stuffcharReadbuff(Ctrl_O);
2834 #endif
2835 
2836     /*
2837      * Middle mouse click: Put text before cursor.
2838      */
2839     if (which_button == MOUSE_MIDDLE)
2840     {
2841 #ifdef FEAT_CLIPBOARD
2842 	if (clip_star.available && regname == 0)
2843 	    regname = '*';
2844 #endif
2845 	if (yank_register_mline(regname))
2846 	{
2847 	    if (mouse_past_bottom)
2848 		dir = FORWARD;
2849 	}
2850 	else if (mouse_past_eol)
2851 	    dir = FORWARD;
2852 
2853 	if (fixindent)
2854 	{
2855 	    c1 = (dir == BACKWARD) ? '[' : ']';
2856 	    c2 = 'p';
2857 	}
2858 	else
2859 	{
2860 	    c1 = (dir == FORWARD) ? 'p' : 'P';
2861 	    c2 = NUL;
2862 	}
2863 	prep_redo(regname, count, NUL, c1, NUL, c2, NUL);
2864 
2865 	/*
2866 	 * Remember where the paste started, so in edit() Insstart can be set
2867 	 * to this position
2868 	 */
2869 	if (restart_edit != 0)
2870 	    where_paste_started = curwin->w_cursor;
2871 	do_put(regname, dir, count, fixindent | PUT_CURSEND);
2872     }
2873 
2874 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2875     /*
2876      * Ctrl-Mouse click or double click in a quickfix window jumps to the
2877      * error under the mouse pointer.
2878      */
2879     else if (((mod_mask & MOD_MASK_CTRL)
2880 		|| (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2881 	    && bt_quickfix(curbuf))
2882     {
2883 	if (State & INSERT)
2884 	    stuffcharReadbuff(Ctrl_O);
2885 	if (curwin->w_llist_ref == NULL)	/* quickfix window */
2886 	    stuffReadbuff((char_u *)":.cc\n");
2887 	else					/* location list window */
2888 	    stuffReadbuff((char_u *)":.ll\n");
2889 	got_click = FALSE;		/* ignore drag&release now */
2890     }
2891 #endif
2892 
2893     /*
2894      * Ctrl-Mouse click (or double click in a help window) jumps to the tag
2895      * under the mouse pointer.
2896      */
2897     else if ((mod_mask & MOD_MASK_CTRL) || (curbuf->b_help
2898 		     && (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK))
2899     {
2900 	if (State & INSERT)
2901 	    stuffcharReadbuff(Ctrl_O);
2902 	stuffcharReadbuff(Ctrl_RSB);
2903 	got_click = FALSE;		/* ignore drag&release now */
2904     }
2905 
2906     /*
2907      * Shift-Mouse click searches for the next occurrence of the word under
2908      * the mouse pointer
2909      */
2910     else if ((mod_mask & MOD_MASK_SHIFT))
2911     {
2912 	if (State & INSERT
2913 #ifdef FEAT_VISUAL
2914 		|| (VIsual_active && VIsual_select)
2915 #endif
2916 		)
2917 	    stuffcharReadbuff(Ctrl_O);
2918 	if (which_button == MOUSE_LEFT)
2919 	    stuffcharReadbuff('*');
2920 	else	/* MOUSE_RIGHT */
2921 	    stuffcharReadbuff('#');
2922     }
2923 
2924     /* Handle double clicks, unless on status line */
2925     else if (in_status_line)
2926     {
2927 #ifdef FEAT_MOUSESHAPE
2928 	if ((is_drag || is_click) && !drag_status_line)
2929 	{
2930 	    drag_status_line = TRUE;
2931 	    update_mouseshape(-1);
2932 	}
2933 #endif
2934     }
2935 #ifdef FEAT_VERTSPLIT
2936     else if (in_sep_line)
2937     {
2938 # ifdef FEAT_MOUSESHAPE
2939 	if ((is_drag || is_click) && !drag_sep_line)
2940 	{
2941 	    drag_sep_line = TRUE;
2942 	    update_mouseshape(-1);
2943 	}
2944 # endif
2945     }
2946 #endif
2947 #ifdef FEAT_VISUAL
2948     else if ((mod_mask & MOD_MASK_MULTI_CLICK) && (State & (NORMAL | INSERT))
2949 	     && mouse_has(MOUSE_VISUAL))
2950     {
2951 	if (is_click || !VIsual_active)
2952 	{
2953 	    if (VIsual_active)
2954 		orig_cursor = VIsual;
2955 	    else
2956 	    {
2957 		check_visual_highlight();
2958 		VIsual = curwin->w_cursor;
2959 		orig_cursor = VIsual;
2960 		VIsual_active = TRUE;
2961 		VIsual_reselect = TRUE;
2962 		/* start Select mode if 'selectmode' contains "mouse" */
2963 		may_start_select('o');
2964 		setmouse();
2965 	    }
2966 	    if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2967 	    {
2968 		/* Double click with ALT pressed makes it blockwise. */
2969 		if (mod_mask & MOD_MASK_ALT)
2970 		    VIsual_mode = Ctrl_V;
2971 		else
2972 		    VIsual_mode = 'v';
2973 	    }
2974 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_3CLICK)
2975 		VIsual_mode = 'V';
2976 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_4CLICK)
2977 		VIsual_mode = Ctrl_V;
2978 #ifdef FEAT_CLIPBOARD
2979 	    /* Make sure the clipboard gets updated.  Needed because start and
2980 	     * end may still be the same, and the selection needs to be owned */
2981 	    clip_star.vmode = NUL;
2982 #endif
2983 	}
2984 	/*
2985 	 * A double click selects a word or a block.
2986 	 */
2987 	if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2988 	{
2989 	    pos_T	*pos = NULL;
2990 	    int		gc;
2991 
2992 	    if (is_click)
2993 	    {
2994 		/* If the character under the cursor (skipping white space) is
2995 		 * not a word character, try finding a match and select a (),
2996 		 * {}, [], #if/#endif, etc. block. */
2997 		end_visual = curwin->w_cursor;
2998 		while (gc = gchar_pos(&end_visual), vim_iswhite(gc))
2999 		    inc(&end_visual);
3000 		if (oap != NULL)
3001 		    oap->motion_type = MCHAR;
3002 		if (oap != NULL
3003 			&& VIsual_mode == 'v'
3004 			&& !vim_iswordc(gchar_pos(&end_visual))
3005 			&& equalpos(curwin->w_cursor, VIsual)
3006 			&& (pos = findmatch(oap, NUL)) != NULL)
3007 		{
3008 		    curwin->w_cursor = *pos;
3009 		    if (oap->motion_type == MLINE)
3010 			VIsual_mode = 'V';
3011 		    else if (*p_sel == 'e')
3012 		    {
3013 			if (lt(curwin->w_cursor, VIsual))
3014 			    ++VIsual.col;
3015 			else
3016 			    ++curwin->w_cursor.col;
3017 		    }
3018 		}
3019 	    }
3020 
3021 	    if (pos == NULL && (is_click || is_drag))
3022 	    {
3023 		/* When not found a match or when dragging: extend to include
3024 		 * a word. */
3025 		if (lt(curwin->w_cursor, orig_cursor))
3026 		{
3027 		    find_start_of_word(&curwin->w_cursor);
3028 		    find_end_of_word(&VIsual);
3029 		}
3030 		else
3031 		{
3032 		    find_start_of_word(&VIsual);
3033 		    if (*p_sel == 'e' && *ml_get_cursor() != NUL)
3034 #ifdef FEAT_MBYTE
3035 			curwin->w_cursor.col +=
3036 					 (*mb_ptr2len)(ml_get_cursor());
3037 #else
3038 			++curwin->w_cursor.col;
3039 #endif
3040 		    find_end_of_word(&curwin->w_cursor);
3041 		}
3042 	    }
3043 	    curwin->w_set_curswant = TRUE;
3044 	}
3045 	if (is_click)
3046 	    redraw_curbuf_later(INVERTED);	/* update the inversion */
3047     }
3048     else if (VIsual_active && !old_active)
3049     {
3050 	if (mod_mask & MOD_MASK_ALT)
3051 	    VIsual_mode = Ctrl_V;
3052 	else
3053 	    VIsual_mode = 'v';
3054     }
3055 
3056     /* If Visual mode changed show it later. */
3057     if ((!VIsual_active && old_active && mode_displayed)
3058 	    || (VIsual_active && p_smd && msg_silent == 0
3059 				 && (!old_active || VIsual_mode != old_mode)))
3060 	redraw_cmdline = TRUE;
3061 #endif
3062 
3063     return moved;
3064 }
3065 
3066 #ifdef FEAT_VISUAL
3067 /*
3068  * Move "pos" back to the start of the word it's in.
3069  */
3070     static void
3071 find_start_of_word(pos)
3072     pos_T	*pos;
3073 {
3074     char_u	*line;
3075     int		cclass;
3076     int		col;
3077 
3078     line = ml_get(pos->lnum);
3079     cclass = get_mouse_class(line + pos->col);
3080 
3081     while (pos->col > 0)
3082     {
3083 	col = pos->col - 1;
3084 #ifdef FEAT_MBYTE
3085 	col -= (*mb_head_off)(line, line + col);
3086 #endif
3087 	if (get_mouse_class(line + col) != cclass)
3088 	    break;
3089 	pos->col = col;
3090     }
3091 }
3092 
3093 /*
3094  * Move "pos" forward to the end of the word it's in.
3095  * When 'selection' is "exclusive", the position is just after the word.
3096  */
3097     static void
3098 find_end_of_word(pos)
3099     pos_T	*pos;
3100 {
3101     char_u	*line;
3102     int		cclass;
3103     int		col;
3104 
3105     line = ml_get(pos->lnum);
3106     if (*p_sel == 'e' && pos->col > 0)
3107     {
3108 	--pos->col;
3109 #ifdef FEAT_MBYTE
3110 	pos->col -= (*mb_head_off)(line, line + pos->col);
3111 #endif
3112     }
3113     cclass = get_mouse_class(line + pos->col);
3114     while (line[pos->col] != NUL)
3115     {
3116 #ifdef FEAT_MBYTE
3117 	col = pos->col + (*mb_ptr2len)(line + pos->col);
3118 #else
3119 	col = pos->col + 1;
3120 #endif
3121 	if (get_mouse_class(line + col) != cclass)
3122 	{
3123 	    if (*p_sel == 'e')
3124 		pos->col = col;
3125 	    break;
3126 	}
3127 	pos->col = col;
3128     }
3129 }
3130 
3131 /*
3132  * Get class of a character for selection: same class means same word.
3133  * 0: blank
3134  * 1: punctuation groups
3135  * 2: normal word character
3136  * >2: multi-byte word character.
3137  */
3138     static int
3139 get_mouse_class(p)
3140     char_u	*p;
3141 {
3142     int		c;
3143 
3144 #ifdef FEAT_MBYTE
3145     if (has_mbyte && MB_BYTE2LEN(p[0]) > 1)
3146 	return mb_get_class(p);
3147 #endif
3148 
3149     c = *p;
3150     if (c == ' ' || c == '\t')
3151 	return 0;
3152 
3153     if (vim_iswordc(c))
3154 	return 2;
3155 
3156     /*
3157      * There are a few special cases where we want certain combinations of
3158      * characters to be considered as a single word.  These are things like
3159      * "->", "/ *", "*=", "+=", "&=", "<=", ">=", "!=" etc.  Otherwise, each
3160      * character is in it's own class.
3161      */
3162     if (c != NUL && vim_strchr((char_u *)"-+*/%<>&|^!=", c) != NULL)
3163 	return 1;
3164     return c;
3165 }
3166 #endif /* FEAT_VISUAL */
3167 #endif /* FEAT_MOUSE */
3168 
3169 #if defined(FEAT_VISUAL) || defined(PROTO)
3170 /*
3171  * Check if  highlighting for visual mode is possible, give a warning message
3172  * if not.
3173  */
3174     void
3175 check_visual_highlight()
3176 {
3177     static int	    did_check = FALSE;
3178 
3179     if (full_screen)
3180     {
3181 	if (!did_check && hl_attr(HLF_V) == 0)
3182 	    MSG(_("Warning: terminal cannot highlight"));
3183 	did_check = TRUE;
3184     }
3185 }
3186 
3187 /*
3188  * End Visual mode.
3189  * This function should ALWAYS be called to end Visual mode, except from
3190  * do_pending_operator().
3191  */
3192     void
3193 end_visual_mode()
3194 {
3195 #ifdef FEAT_CLIPBOARD
3196     /*
3197      * If we are using the clipboard, then remember what was selected in case
3198      * we need to paste it somewhere while we still own the selection.
3199      * Only do this when the clipboard is already owned.  Don't want to grab
3200      * the selection when hitting ESC.
3201      */
3202     if (clip_star.available && clip_star.owned)
3203 	clip_auto_select();
3204 #endif
3205 
3206     VIsual_active = FALSE;
3207 #ifdef FEAT_MOUSE
3208     setmouse();
3209     mouse_dragging = 0;
3210 #endif
3211 
3212     /* Save the current VIsual area for '< and '> marks, and "gv" */
3213     curbuf->b_visual.vi_mode = VIsual_mode;
3214     curbuf->b_visual.vi_start = VIsual;
3215     curbuf->b_visual.vi_end = curwin->w_cursor;
3216     curbuf->b_visual.vi_curswant = curwin->w_curswant;
3217 #ifdef FEAT_EVAL
3218     curbuf->b_visual_mode_eval = VIsual_mode;
3219 #endif
3220 #ifdef FEAT_VIRTUALEDIT
3221     if (!virtual_active())
3222 	curwin->w_cursor.coladd = 0;
3223 #endif
3224 
3225     if (mode_displayed)
3226 	clear_cmdline = TRUE;		/* unshow visual mode later */
3227 #ifdef FEAT_CMDL_INFO
3228     else
3229 	clear_showcmd();
3230 #endif
3231 
3232     adjust_cursor_eol();
3233 }
3234 
3235 /*
3236  * Reset VIsual_active and VIsual_reselect.
3237  */
3238     void
3239 reset_VIsual_and_resel()
3240 {
3241     if (VIsual_active)
3242     {
3243 	end_visual_mode();
3244 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3245     }
3246     VIsual_reselect = FALSE;
3247 }
3248 
3249 /*
3250  * Reset VIsual_active and VIsual_reselect if it's set.
3251  */
3252     void
3253 reset_VIsual()
3254 {
3255     if (VIsual_active)
3256     {
3257 	end_visual_mode();
3258 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3259 	VIsual_reselect = FALSE;
3260     }
3261 }
3262 #endif /* FEAT_VISUAL */
3263 
3264 #if defined(FEAT_BEVAL)
3265 static int find_is_eval_item __ARGS((char_u *ptr, int *colp, int *nbp, int dir));
3266 
3267 /*
3268  * Check for a balloon-eval special item to include when searching for an
3269  * identifier.  When "dir" is BACKWARD "ptr[-1]" must be valid!
3270  * Returns TRUE if the character at "*ptr" should be included.
3271  * "dir" is FORWARD or BACKWARD, the direction of searching.
3272  * "*colp" is in/decremented if "ptr[-dir]" should also be included.
3273  * "bnp" points to a counter for square brackets.
3274  */
3275     static int
3276 find_is_eval_item(ptr, colp, bnp, dir)
3277     char_u	*ptr;
3278     int		*colp;
3279     int		*bnp;
3280     int		dir;
3281 {
3282     /* Accept everything inside []. */
3283     if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD))
3284 	++*bnp;
3285     if (*bnp > 0)
3286     {
3287 	if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD))
3288 	    --*bnp;
3289 	return TRUE;
3290     }
3291 
3292     /* skip over "s.var" */
3293     if (*ptr == '.')
3294 	return TRUE;
3295 
3296     /* two-character item: s->var */
3297     if (ptr[dir == BACKWARD ? 0 : 1] == '>'
3298 	    && ptr[dir == BACKWARD ? -1 : 0] == '-')
3299     {
3300 	*colp += dir;
3301 	return TRUE;
3302     }
3303     return FALSE;
3304 }
3305 #endif
3306 
3307 /*
3308  * Find the identifier under or to the right of the cursor.
3309  * "find_type" can have one of three values:
3310  * FIND_IDENT:   find an identifier (keyword)
3311  * FIND_STRING:  find any non-white string
3312  * FIND_IDENT + FIND_STRING: find any non-white string, identifier preferred.
3313  * FIND_EVAL:	 find text useful for C program debugging
3314  *
3315  * There are three steps:
3316  * 1. Search forward for the start of an identifier/string.  Doesn't move if
3317  *    already on one.
3318  * 2. Search backward for the start of this identifier/string.
3319  *    This doesn't match the real Vi but I like it a little better and it
3320  *    shouldn't bother anyone.
3321  * 3. Search forward to the end of this identifier/string.
3322  *    When FIND_IDENT isn't defined, we backup until a blank.
3323  *
3324  * Returns the length of the string, or zero if no string is found.
3325  * If a string is found, a pointer to the string is put in "*string".  This
3326  * string is not always NUL terminated.
3327  */
3328     int
3329 find_ident_under_cursor(string, find_type)
3330     char_u	**string;
3331     int		find_type;
3332 {
3333     return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
3334 				     curwin->w_cursor.col, string, find_type);
3335 }
3336 
3337 /*
3338  * Like find_ident_under_cursor(), but for any window and any position.
3339  * However: Uses 'iskeyword' from the current window!.
3340  */
3341     int
3342 find_ident_at_pos(wp, lnum, startcol, string, find_type)
3343     win_T	*wp;
3344     linenr_T	lnum;
3345     colnr_T	startcol;
3346     char_u	**string;
3347     int		find_type;
3348 {
3349     char_u	*ptr;
3350     int		col = 0;	    /* init to shut up GCC */
3351     int		i;
3352 #ifdef FEAT_MBYTE
3353     int		this_class = 0;
3354     int		prev_class;
3355     int		prevcol;
3356 #endif
3357 #if defined(FEAT_BEVAL)
3358     int		bn = 0;	    /* bracket nesting */
3359 #endif
3360 
3361     /*
3362      * if i == 0: try to find an identifier
3363      * if i == 1: try to find any non-white string
3364      */
3365     ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
3366     for (i = (find_type & FIND_IDENT) ? 0 : 1;	i < 2; ++i)
3367     {
3368 	/*
3369 	 * 1. skip to start of identifier/string
3370 	 */
3371 	col = startcol;
3372 #ifdef FEAT_MBYTE
3373 	if (has_mbyte)
3374 	{
3375 	    while (ptr[col] != NUL)
3376 	    {
3377 # if defined(FEAT_BEVAL)
3378 		/* Stop at a ']' to evaluate "a[x]". */
3379 		if ((find_type & FIND_EVAL) && ptr[col] == ']')
3380 		    break;
3381 # endif
3382 		this_class = mb_get_class(ptr + col);
3383 		if (this_class != 0 && (i == 1 || this_class != 1))
3384 		    break;
3385 		col += (*mb_ptr2len)(ptr + col);
3386 	    }
3387 	}
3388 	else
3389 #endif
3390 	    while (ptr[col] != NUL
3391 		    && (i == 0 ? !vim_iswordc(ptr[col]) : vim_iswhite(ptr[col]))
3392 # if defined(FEAT_BEVAL)
3393 		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
3394 # endif
3395 		    )
3396 		++col;
3397 
3398 #if defined(FEAT_BEVAL)
3399 	/* When starting on a ']' count it, so that we include the '['. */
3400 	bn = ptr[col] == ']';
3401 #endif
3402 
3403 	/*
3404 	 * 2. Back up to start of identifier/string.
3405 	 */
3406 #ifdef FEAT_MBYTE
3407 	if (has_mbyte)
3408 	{
3409 	    /* Remember class of character under cursor. */
3410 # if defined(FEAT_BEVAL)
3411 	    if ((find_type & FIND_EVAL) && ptr[col] == ']')
3412 		this_class = mb_get_class((char_u *)"a");
3413 	    else
3414 # endif
3415 		this_class = mb_get_class(ptr + col);
3416 	    while (col > 0 && this_class != 0)
3417 	    {
3418 		prevcol = col - 1 - (*mb_head_off)(ptr, ptr + col - 1);
3419 		prev_class = mb_get_class(ptr + prevcol);
3420 		if (this_class != prev_class
3421 			&& (i == 0
3422 			    || prev_class == 0
3423 			    || (find_type & FIND_IDENT))
3424 # if defined(FEAT_BEVAL)
3425 			&& (!(find_type & FIND_EVAL)
3426 			    || prevcol == 0
3427 			    || !find_is_eval_item(ptr + prevcol, &prevcol,
3428 							       &bn, BACKWARD))
3429 # endif
3430 			)
3431 		    break;
3432 		col = prevcol;
3433 	    }
3434 
3435 	    /* If we don't want just any old string, or we've found an
3436 	     * identifier, stop searching. */
3437 	    if (this_class > 2)
3438 		this_class = 2;
3439 	    if (!(find_type & FIND_STRING) || this_class == 2)
3440 		break;
3441 	}
3442 	else
3443 #endif
3444 	{
3445 	    while (col > 0
3446 		    && ((i == 0
3447 			    ? vim_iswordc(ptr[col - 1])
3448 			    : (!vim_iswhite(ptr[col - 1])
3449 				&& (!(find_type & FIND_IDENT)
3450 				    || !vim_iswordc(ptr[col - 1]))))
3451 #if defined(FEAT_BEVAL)
3452 			|| ((find_type & FIND_EVAL)
3453 			    && col > 1
3454 			    && find_is_eval_item(ptr + col - 1, &col,
3455 							       &bn, BACKWARD))
3456 #endif
3457 			))
3458 		--col;
3459 
3460 	    /* If we don't want just any old string, or we've found an
3461 	     * identifier, stop searching. */
3462 	    if (!(find_type & FIND_STRING) || vim_iswordc(ptr[col]))
3463 		break;
3464 	}
3465     }
3466 
3467     if (ptr[col] == NUL || (i == 0 && (
3468 #ifdef FEAT_MBYTE
3469 		has_mbyte ? this_class != 2 :
3470 #endif
3471 		!vim_iswordc(ptr[col]))))
3472     {
3473 	/*
3474 	 * didn't find an identifier or string
3475 	 */
3476 	if (find_type & FIND_STRING)
3477 	    EMSG(_("E348: No string under cursor"));
3478 	else
3479 	    EMSG(_("E349: No identifier under cursor"));
3480 	return 0;
3481     }
3482     ptr += col;
3483     *string = ptr;
3484 
3485     /*
3486      * 3. Find the end if the identifier/string.
3487      */
3488 #if defined(FEAT_BEVAL)
3489     bn = 0;
3490     startcol -= col;
3491 #endif
3492     col = 0;
3493 #ifdef FEAT_MBYTE
3494     if (has_mbyte)
3495     {
3496 	/* Search for point of changing multibyte character class. */
3497 	this_class = mb_get_class(ptr);
3498 	while (ptr[col] != NUL
3499 		&& ((i == 0 ? mb_get_class(ptr + col) == this_class
3500 			    : mb_get_class(ptr + col) != 0)
3501 # if defined(FEAT_BEVAL)
3502 		    || ((find_type & FIND_EVAL)
3503 			&& col <= (int)startcol
3504 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3505 # endif
3506 		))
3507 	    col += (*mb_ptr2len)(ptr + col);
3508     }
3509     else
3510 #endif
3511 	while ((i == 0 ? vim_iswordc(ptr[col])
3512 		       : (ptr[col] != NUL && !vim_iswhite(ptr[col])))
3513 # if defined(FEAT_BEVAL)
3514 		    || ((find_type & FIND_EVAL)
3515 			&& col <= (int)startcol
3516 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3517 # endif
3518 		)
3519 	{
3520 	    ++col;
3521 	}
3522 
3523     return col;
3524 }
3525 
3526 /*
3527  * Prepare for redo of a normal command.
3528  */
3529     static void
3530 prep_redo_cmd(cap)
3531     cmdarg_T  *cap;
3532 {
3533     prep_redo(cap->oap->regname, cap->count0,
3534 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
3535 }
3536 
3537 /*
3538  * Prepare for redo of any command.
3539  * Note that only the last argument can be a multi-byte char.
3540  */
3541     static void
3542 prep_redo(regname, num, cmd1, cmd2, cmd3, cmd4, cmd5)
3543     int	    regname;
3544     long    num;
3545     int	    cmd1;
3546     int	    cmd2;
3547     int	    cmd3;
3548     int	    cmd4;
3549     int	    cmd5;
3550 {
3551     ResetRedobuff();
3552     if (regname != 0)	/* yank from specified buffer */
3553     {
3554 	AppendCharToRedobuff('"');
3555 	AppendCharToRedobuff(regname);
3556     }
3557     if (num)
3558 	AppendNumberToRedobuff(num);
3559 
3560     if (cmd1 != NUL)
3561 	AppendCharToRedobuff(cmd1);
3562     if (cmd2 != NUL)
3563 	AppendCharToRedobuff(cmd2);
3564     if (cmd3 != NUL)
3565 	AppendCharToRedobuff(cmd3);
3566     if (cmd4 != NUL)
3567 	AppendCharToRedobuff(cmd4);
3568     if (cmd5 != NUL)
3569 	AppendCharToRedobuff(cmd5);
3570 }
3571 
3572 /*
3573  * check for operator active and clear it
3574  *
3575  * return TRUE if operator was active
3576  */
3577     static int
3578 checkclearop(oap)
3579     oparg_T	*oap;
3580 {
3581     if (oap->op_type == OP_NOP)
3582 	return FALSE;
3583     clearopbeep(oap);
3584     return TRUE;
3585 }
3586 
3587 /*
3588  * Check for operator or Visual active.  Clear active operator.
3589  *
3590  * Return TRUE if operator or Visual was active.
3591  */
3592     static int
3593 checkclearopq(oap)
3594     oparg_T	*oap;
3595 {
3596     if (oap->op_type == OP_NOP
3597 #ifdef FEAT_VISUAL
3598 	    && !VIsual_active
3599 #endif
3600 	    )
3601 	return FALSE;
3602     clearopbeep(oap);
3603     return TRUE;
3604 }
3605 
3606     static void
3607 clearop(oap)
3608     oparg_T	*oap;
3609 {
3610     oap->op_type = OP_NOP;
3611     oap->regname = 0;
3612     oap->motion_force = NUL;
3613     oap->use_reg_one = FALSE;
3614 }
3615 
3616     static void
3617 clearopbeep(oap)
3618     oparg_T	*oap;
3619 {
3620     clearop(oap);
3621     beep_flush();
3622 }
3623 
3624 #ifdef FEAT_VISUAL
3625 /*
3626  * Remove the shift modifier from a special key.
3627  */
3628     static void
3629 unshift_special(cap)
3630     cmdarg_T	*cap;
3631 {
3632     switch (cap->cmdchar)
3633     {
3634 	case K_S_RIGHT:	cap->cmdchar = K_RIGHT; break;
3635 	case K_S_LEFT:	cap->cmdchar = K_LEFT; break;
3636 	case K_S_UP:	cap->cmdchar = K_UP; break;
3637 	case K_S_DOWN:	cap->cmdchar = K_DOWN; break;
3638 	case K_S_HOME:	cap->cmdchar = K_HOME; break;
3639 	case K_S_END:	cap->cmdchar = K_END; break;
3640     }
3641     cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
3642 }
3643 #endif
3644 
3645 #if defined(FEAT_CMDL_INFO) || defined(PROTO)
3646 /*
3647  * Routines for displaying a partly typed command
3648  */
3649 
3650 #ifdef FEAT_VISUAL	/* need room for size of Visual area */
3651 # define SHOWCMD_BUFLEN SHOWCMD_COLS + 1 + 30
3652 #else
3653 # define SHOWCMD_BUFLEN SHOWCMD_COLS + 1
3654 #endif
3655 static char_u	showcmd_buf[SHOWCMD_BUFLEN];
3656 static char_u	old_showcmd_buf[SHOWCMD_BUFLEN];  /* For push_showcmd() */
3657 static int	showcmd_is_clear = TRUE;
3658 static int	showcmd_visual = FALSE;
3659 
3660 static void display_showcmd __ARGS((void));
3661 
3662     void
3663 clear_showcmd()
3664 {
3665     if (!p_sc)
3666 	return;
3667 
3668 #ifdef FEAT_VISUAL
3669     if (VIsual_active && !char_avail())
3670     {
3671 	int		i = lt(VIsual, curwin->w_cursor);
3672 	long		lines;
3673 	colnr_T		leftcol, rightcol;
3674 	linenr_T	top, bot;
3675 
3676 	/* Show the size of the Visual area. */
3677 	if (i)
3678 	{
3679 	    top = VIsual.lnum;
3680 	    bot = curwin->w_cursor.lnum;
3681 	}
3682 	else
3683 	{
3684 	    top = curwin->w_cursor.lnum;
3685 	    bot = VIsual.lnum;
3686 	}
3687 # ifdef FEAT_FOLDING
3688 	/* Include closed folds as a whole. */
3689 	hasFolding(top, &top, NULL);
3690 	hasFolding(bot, NULL, &bot);
3691 # endif
3692 	lines = bot - top + 1;
3693 
3694 	if (VIsual_mode == Ctrl_V)
3695 	{
3696 	    getvcols(curwin, &curwin->w_cursor, &VIsual, &leftcol, &rightcol);
3697 	    sprintf((char *)showcmd_buf, "%ldx%ld", lines,
3698 					      (long)(rightcol - leftcol + 1));
3699 	}
3700 	else if (VIsual_mode == 'V' || VIsual.lnum != curwin->w_cursor.lnum)
3701 	    sprintf((char *)showcmd_buf, "%ld", lines);
3702 	else
3703 	    sprintf((char *)showcmd_buf, "%ld", (long)(i
3704 		    ? curwin->w_cursor.col - VIsual.col
3705 		    : VIsual.col - curwin->w_cursor.col) + (*p_sel != 'e'));
3706 	showcmd_buf[SHOWCMD_COLS] = NUL;	/* truncate */
3707 	showcmd_visual = TRUE;
3708     }
3709     else
3710 #endif
3711     {
3712 	showcmd_buf[0] = NUL;
3713 	showcmd_visual = FALSE;
3714 
3715 	/* Don't actually display something if there is nothing to clear. */
3716 	if (showcmd_is_clear)
3717 	    return;
3718     }
3719 
3720     display_showcmd();
3721 }
3722 
3723 /*
3724  * Add 'c' to string of shown command chars.
3725  * Return TRUE if output has been written (and setcursor() has been called).
3726  */
3727     int
3728 add_to_showcmd(c)
3729     int		c;
3730 {
3731     char_u	*p;
3732     int		old_len;
3733     int		extra_len;
3734     int		overflow;
3735 #if defined(FEAT_MOUSE)
3736     int		i;
3737     static int	ignore[] =
3738     {
3739 # ifdef FEAT_GUI
3740 	K_VER_SCROLLBAR, K_HOR_SCROLLBAR,
3741 	K_LEFTMOUSE_NM, K_LEFTRELEASE_NM,
3742 # endif
3743 	K_IGNORE,
3744 	K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE,
3745 	K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
3746 	K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
3747 	K_MOUSEDOWN, K_MOUSEUP,
3748 	K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
3749 	K_CURSORHOLD,
3750 	0
3751     };
3752 #endif
3753 
3754     if (!p_sc || msg_silent != 0)
3755 	return FALSE;
3756 
3757     if (showcmd_visual)
3758     {
3759 	showcmd_buf[0] = NUL;
3760 	showcmd_visual = FALSE;
3761     }
3762 
3763 #if defined(FEAT_MOUSE)
3764     /* Ignore keys that are scrollbar updates and mouse clicks */
3765     if (IS_SPECIAL(c))
3766 	for (i = 0; ignore[i] != 0; ++i)
3767 	    if (ignore[i] == c)
3768 		return FALSE;
3769 #endif
3770 
3771     p = transchar(c);
3772     old_len = (int)STRLEN(showcmd_buf);
3773     extra_len = (int)STRLEN(p);
3774     overflow = old_len + extra_len - SHOWCMD_COLS;
3775     if (overflow > 0)
3776 	mch_memmove(showcmd_buf, showcmd_buf + overflow,
3777 						      old_len - overflow + 1);
3778     STRCAT(showcmd_buf, p);
3779 
3780     if (char_avail())
3781 	return FALSE;
3782 
3783     display_showcmd();
3784 
3785     return TRUE;
3786 }
3787 
3788     void
3789 add_to_showcmd_c(c)
3790     int		c;
3791 {
3792     if (!add_to_showcmd(c))
3793 	setcursor();
3794 }
3795 
3796 /*
3797  * Delete 'len' characters from the end of the shown command.
3798  */
3799     static void
3800 del_from_showcmd(len)
3801     int	    len;
3802 {
3803     int	    old_len;
3804 
3805     if (!p_sc)
3806 	return;
3807 
3808     old_len = (int)STRLEN(showcmd_buf);
3809     if (len > old_len)
3810 	len = old_len;
3811     showcmd_buf[old_len - len] = NUL;
3812 
3813     if (!char_avail())
3814 	display_showcmd();
3815 }
3816 
3817 /*
3818  * push_showcmd() and pop_showcmd() are used when waiting for the user to type
3819  * something and there is a partial mapping.
3820  */
3821     void
3822 push_showcmd()
3823 {
3824     if (p_sc)
3825 	STRCPY(old_showcmd_buf, showcmd_buf);
3826 }
3827 
3828     void
3829 pop_showcmd()
3830 {
3831     if (!p_sc)
3832 	return;
3833 
3834     STRCPY(showcmd_buf, old_showcmd_buf);
3835 
3836     display_showcmd();
3837 }
3838 
3839     static void
3840 display_showcmd()
3841 {
3842     int	    len;
3843 
3844     cursor_off();
3845 
3846     len = (int)STRLEN(showcmd_buf);
3847     if (len == 0)
3848 	showcmd_is_clear = TRUE;
3849     else
3850     {
3851 	screen_puts(showcmd_buf, (int)Rows - 1, sc_col, 0);
3852 	showcmd_is_clear = FALSE;
3853     }
3854 
3855     /*
3856      * clear the rest of an old message by outputting up to SHOWCMD_COLS
3857      * spaces
3858      */
3859     screen_puts((char_u *)"          " + len, (int)Rows - 1, sc_col + len, 0);
3860 
3861     setcursor();	    /* put cursor back where it belongs */
3862 }
3863 #endif
3864 
3865 #ifdef FEAT_SCROLLBIND
3866 /*
3867  * When "check" is FALSE, prepare for commands that scroll the window.
3868  * When "check" is TRUE, take care of scroll-binding after the window has
3869  * scrolled.  Called from normal_cmd() and edit().
3870  */
3871     void
3872 do_check_scrollbind(check)
3873     int		check;
3874 {
3875     static win_T	*old_curwin = NULL;
3876     static linenr_T	old_topline = 0;
3877 #ifdef FEAT_DIFF
3878     static int		old_topfill = 0;
3879 #endif
3880     static buf_T	*old_buf = NULL;
3881     static colnr_T	old_leftcol = 0;
3882 
3883     if (check && curwin->w_p_scb)
3884     {
3885 	/* If a ":syncbind" command was just used, don't scroll, only reset
3886 	 * the values. */
3887 	if (did_syncbind)
3888 	    did_syncbind = FALSE;
3889 	else if (curwin == old_curwin)
3890 	{
3891 	    /*
3892 	     * Synchronize other windows, as necessary according to
3893 	     * 'scrollbind'.  Don't do this after an ":edit" command, except
3894 	     * when 'diff' is set.
3895 	     */
3896 	    if ((curwin->w_buffer == old_buf
3897 #ifdef FEAT_DIFF
3898 			|| curwin->w_p_diff
3899 #endif
3900 		)
3901 		&& (curwin->w_topline != old_topline
3902 #ifdef FEAT_DIFF
3903 			|| curwin->w_topfill != old_topfill
3904 #endif
3905 			|| curwin->w_leftcol != old_leftcol))
3906 	    {
3907 		check_scrollbind(curwin->w_topline - old_topline,
3908 			(long)(curwin->w_leftcol - old_leftcol));
3909 	    }
3910 	}
3911 	else if (vim_strchr(p_sbo, 'j')) /* jump flag set in 'scrollopt' */
3912 	{
3913 	    /*
3914 	     * When switching between windows, make sure that the relative
3915 	     * vertical offset is valid for the new window.  The relative
3916 	     * offset is invalid whenever another 'scrollbind' window has
3917 	     * scrolled to a point that would force the current window to
3918 	     * scroll past the beginning or end of its buffer.  When the
3919 	     * resync is performed, some of the other 'scrollbind' windows may
3920 	     * need to jump so that the current window's relative position is
3921 	     * visible on-screen.
3922 	     */
3923 	    check_scrollbind(curwin->w_topline - curwin->w_scbind_pos, 0L);
3924 	}
3925 	curwin->w_scbind_pos = curwin->w_topline;
3926     }
3927 
3928     old_curwin = curwin;
3929     old_topline = curwin->w_topline;
3930 #ifdef FEAT_DIFF
3931     old_topfill = curwin->w_topfill;
3932 #endif
3933     old_buf = curwin->w_buffer;
3934     old_leftcol = curwin->w_leftcol;
3935 }
3936 
3937 /*
3938  * Synchronize any windows that have "scrollbind" set, based on the
3939  * number of rows by which the current window has changed
3940  * (1998-11-02 16:21:01  R. Edward Ralston <[email protected]>)
3941  */
3942     void
3943 check_scrollbind(topline_diff, leftcol_diff)
3944     linenr_T	topline_diff;
3945     long	leftcol_diff;
3946 {
3947     int		want_ver;
3948     int		want_hor;
3949     win_T	*old_curwin = curwin;
3950     buf_T	*old_curbuf = curbuf;
3951 #ifdef FEAT_VISUAL
3952     int		old_VIsual_select = VIsual_select;
3953     int		old_VIsual_active = VIsual_active;
3954 #endif
3955     colnr_T	tgt_leftcol = curwin->w_leftcol;
3956     long	topline;
3957     long	y;
3958 
3959     /*
3960      * check 'scrollopt' string for vertical and horizontal scroll options
3961      */
3962     want_ver = (vim_strchr(p_sbo, 'v') && topline_diff != 0);
3963 #ifdef FEAT_DIFF
3964     want_ver |= old_curwin->w_p_diff;
3965 #endif
3966     want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || topline_diff != 0));
3967 
3968     /*
3969      * loop through the scrollbound windows and scroll accordingly
3970      */
3971 #ifdef FEAT_VISUAL
3972     VIsual_select = VIsual_active = 0;
3973 #endif
3974     for (curwin = firstwin; curwin; curwin = curwin->w_next)
3975     {
3976 	curbuf = curwin->w_buffer;
3977 	/* skip original window  and windows with 'noscrollbind' */
3978 	if (curwin != old_curwin && curwin->w_p_scb)
3979 	{
3980 	    /*
3981 	     * do the vertical scroll
3982 	     */
3983 	    if (want_ver)
3984 	    {
3985 #ifdef FEAT_DIFF
3986 		if (old_curwin->w_p_diff && curwin->w_p_diff)
3987 		{
3988 		    diff_set_topline(old_curwin, curwin);
3989 		}
3990 		else
3991 #endif
3992 		{
3993 		    curwin->w_scbind_pos += topline_diff;
3994 		    topline = curwin->w_scbind_pos;
3995 		    if (topline > curbuf->b_ml.ml_line_count)
3996 			topline = curbuf->b_ml.ml_line_count;
3997 		    if (topline < 1)
3998 			topline = 1;
3999 
4000 		    y = topline - curwin->w_topline;
4001 		    if (y > 0)
4002 			scrollup(y, FALSE);
4003 		    else
4004 			scrolldown(-y, FALSE);
4005 		}
4006 
4007 		redraw_later(VALID);
4008 		cursor_correct();
4009 #ifdef FEAT_WINDOWS
4010 		curwin->w_redr_status = TRUE;
4011 #endif
4012 	    }
4013 
4014 	    /*
4015 	     * do the horizontal scroll
4016 	     */
4017 	    if (want_hor && curwin->w_leftcol != tgt_leftcol)
4018 	    {
4019 		curwin->w_leftcol = tgt_leftcol;
4020 		leftcol_changed();
4021 	    }
4022 	}
4023     }
4024 
4025     /*
4026      * reset current-window
4027      */
4028 #ifdef FEAT_VISUAL
4029     VIsual_select = old_VIsual_select;
4030     VIsual_active = old_VIsual_active;
4031 #endif
4032     curwin = old_curwin;
4033     curbuf = old_curbuf;
4034 }
4035 #endif /* #ifdef FEAT_SCROLLBIND */
4036 
4037 /*
4038  * Command character that's ignored.
4039  * Used for CTRL-Q and CTRL-S to avoid problems with terminals that use
4040  * xon/xoff
4041  */
4042     static void
4043 nv_ignore(cap)
4044     cmdarg_T	*cap;
4045 {
4046     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
4047 }
4048 
4049 /*
4050  * Command character that doesn't do anything, but unlike nv_ignore() does
4051  * start edit().  Used for "startinsert" executed while starting up.
4052  */
4053 /*ARGSUSED */
4054     static void
4055 nv_nop(cap)
4056     cmdarg_T	*cap;
4057 {
4058 }
4059 
4060 /*
4061  * Command character doesn't exist.
4062  */
4063     static void
4064 nv_error(cap)
4065     cmdarg_T	*cap;
4066 {
4067     clearopbeep(cap->oap);
4068 }
4069 
4070 /*
4071  * <Help> and <F1> commands.
4072  */
4073     static void
4074 nv_help(cap)
4075     cmdarg_T	*cap;
4076 {
4077     if (!checkclearopq(cap->oap))
4078 	ex_help(NULL);
4079 }
4080 
4081 /*
4082  * CTRL-A and CTRL-X: Add or subtract from letter or number under cursor.
4083  */
4084     static void
4085 nv_addsub(cap)
4086     cmdarg_T	*cap;
4087 {
4088     if (!checkclearopq(cap->oap)
4089 	    && do_addsub((int)cap->cmdchar, cap->count1) == OK)
4090 	prep_redo_cmd(cap);
4091 }
4092 
4093 /*
4094  * CTRL-F, CTRL-B, etc: Scroll page up or down.
4095  */
4096     static void
4097 nv_page(cap)
4098     cmdarg_T	*cap;
4099 {
4100     if (!checkclearop(cap->oap))
4101     {
4102 #ifdef FEAT_WINDOWS
4103 	if (mod_mask & MOD_MASK_CTRL)
4104 	{
4105 	    /* <C-PageUp>: tab page back; <C-PageDown>: tab page forward */
4106 	    if (cap->arg == BACKWARD)
4107 		goto_tabpage(-(int)cap->count1);
4108 	    else
4109 		goto_tabpage((int)cap->count0);
4110 	}
4111 	else
4112 #endif
4113 	(void)onepage(cap->arg, cap->count1);
4114     }
4115 }
4116 
4117 /*
4118  * Implementation of "gd" and "gD" command.
4119  */
4120     static void
4121 nv_gd(oap, nchar, thisblock)
4122     oparg_T	*oap;
4123     int		nchar;
4124     int		thisblock;	/* 1 for "1gd" and "1gD" */
4125 {
4126     int		len;
4127     char_u	*ptr;
4128 
4129     if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
4130 	    || find_decl(ptr, len, nchar == 'd', thisblock, 0) == FAIL)
4131 	clearopbeep(oap);
4132 #ifdef FEAT_FOLDING
4133     else if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
4134 	foldOpenCursor();
4135 #endif
4136 }
4137 
4138 /*
4139  * Search for variable declaration of "ptr[len]".
4140  * When "locally" is TRUE in the current function ("gd"), otherwise in the
4141  * current file ("gD").
4142  * When "thisblock" is TRUE check the {} block scope.
4143  * Return FAIL when not found.
4144  */
4145     int
4146 find_decl(ptr, len, locally, thisblock, searchflags)
4147     char_u	*ptr;
4148     int		len;
4149     int		locally;
4150     int		thisblock;
4151     int		searchflags;	/* flags passed to searchit() */
4152 {
4153     char_u	*pat;
4154     pos_T	old_pos;
4155     pos_T	par_pos;
4156     pos_T	found_pos;
4157     int		t;
4158     int		save_p_ws;
4159     int		save_p_scs;
4160     int		retval = OK;
4161     int		incll;
4162 
4163     if ((pat = alloc(len + 7)) == NULL)
4164 	return FAIL;
4165 
4166     /* Put "\V" before the pattern to avoid that the special meaning of "."
4167      * and "~" causes trouble. */
4168     sprintf((char *)pat, vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
4169 								    len, ptr);
4170     old_pos = curwin->w_cursor;
4171     save_p_ws = p_ws;
4172     save_p_scs = p_scs;
4173     p_ws = FALSE;	/* don't wrap around end of file now */
4174     p_scs = FALSE;	/* don't switch ignorecase off now */
4175 
4176     /*
4177      * With "gD" go to line 1.
4178      * With "gd" Search back for the start of the current function, then go
4179      * back until a blank line.  If this fails go to line 1.
4180      */
4181     if (!locally || !findpar(&incll, BACKWARD, 1L, '{', FALSE))
4182     {
4183 	setpcmark();			/* Set in findpar() otherwise */
4184 	curwin->w_cursor.lnum = 1;
4185 	par_pos = curwin->w_cursor;
4186     }
4187     else
4188     {
4189 	par_pos = curwin->w_cursor;
4190 	while (curwin->w_cursor.lnum > 1 && *skipwhite(ml_get_curline()) != NUL)
4191 	    --curwin->w_cursor.lnum;
4192     }
4193     curwin->w_cursor.col = 0;
4194 
4195     /* Search forward for the identifier, ignore comment lines. */
4196     clearpos(&found_pos);
4197     for (;;)
4198     {
4199 	t = searchit(curwin, curbuf, &curwin->w_cursor, FORWARD,
4200 			    pat, 1L, searchflags, RE_LAST, (linenr_T)0, NULL);
4201 	if (curwin->w_cursor.lnum >= old_pos.lnum)
4202 	    t = FAIL;	/* match after start is failure too */
4203 
4204 	if (thisblock && t != FAIL)
4205 	{
4206 	    pos_T	*pos;
4207 
4208 	    /* Check that the block the match is in doesn't end before the
4209 	     * position where we started the search from. */
4210 	    if ((pos = findmatchlimit(NULL, '}', FM_FORWARD,
4211 		     (int)(old_pos.lnum - curwin->w_cursor.lnum + 1))) != NULL
4212 		    && pos->lnum < old_pos.lnum)
4213 		continue;
4214 	}
4215 
4216 	if (t == FAIL)
4217 	{
4218 	    /* If we previously found a valid position, use it. */
4219 	    if (found_pos.lnum != 0)
4220 	    {
4221 		curwin->w_cursor = found_pos;
4222 		t = OK;
4223 	    }
4224 	    break;
4225 	}
4226 #ifdef FEAT_COMMENTS
4227 	if (get_leader_len(ml_get_curline(), NULL, FALSE) > 0)
4228 	{
4229 	    /* Ignore this line, continue at start of next line. */
4230 	    ++curwin->w_cursor.lnum;
4231 	    curwin->w_cursor.col = 0;
4232 	    continue;
4233 	}
4234 #endif
4235 	if (!locally)	/* global search: use first match found */
4236 	    break;
4237 	if (curwin->w_cursor.lnum >= par_pos.lnum)
4238 	{
4239 	    /* If we previously found a valid position, use it. */
4240 	    if (found_pos.lnum != 0)
4241 		curwin->w_cursor = found_pos;
4242 	    break;
4243 	}
4244 
4245 	/* For finding a local variable and the match is before the "{" search
4246 	 * to find a later match.  For K&R style function declarations this
4247 	 * skips the function header without types. */
4248 	found_pos = curwin->w_cursor;
4249     }
4250 
4251     if (t == FAIL)
4252     {
4253 	retval = FAIL;
4254 	curwin->w_cursor = old_pos;
4255     }
4256     else
4257     {
4258 	curwin->w_set_curswant = TRUE;
4259 	/* "n" searches forward now */
4260 	reset_search_dir();
4261     }
4262 
4263     vim_free(pat);
4264     p_ws = save_p_ws;
4265     p_scs = save_p_scs;
4266 
4267     return retval;
4268 }
4269 
4270 /*
4271  * Move 'dist' lines in direction 'dir', counting lines by *screen*
4272  * lines rather than lines in the file.
4273  * 'dist' must be positive.
4274  *
4275  * Return OK if able to move cursor, FAIL otherwise.
4276  */
4277     static int
4278 nv_screengo(oap, dir, dist)
4279     oparg_T	*oap;
4280     int		dir;
4281     long	dist;
4282 {
4283     int		linelen = linetabsize(ml_get_curline());
4284     int		retval = OK;
4285     int		atend = FALSE;
4286     int		n;
4287     int		col_off1;	/* margin offset for first screen line */
4288     int		col_off2;	/* margin offset for wrapped screen line */
4289     int		width1;		/* text width for first screen line */
4290     int		width2;		/* test width for wrapped screen line */
4291 
4292     oap->motion_type = MCHAR;
4293     oap->inclusive = FALSE;
4294 
4295     col_off1 = curwin_col_off();
4296     col_off2 = col_off1 - curwin_col_off2();
4297     width1 = W_WIDTH(curwin) - col_off1;
4298     width2 = W_WIDTH(curwin) - col_off2;
4299 
4300 #ifdef FEAT_VERTSPLIT
4301     if (curwin->w_width != 0)
4302     {
4303 #endif
4304       /*
4305        * Instead of sticking at the last character of the buffer line we
4306        * try to stick in the last column of the screen.
4307        */
4308       if (curwin->w_curswant == MAXCOL)
4309       {
4310 	atend = TRUE;
4311 	validate_virtcol();
4312 	if (width1 <= 0)
4313 	    curwin->w_curswant = 0;
4314 	else
4315 	{
4316 	    curwin->w_curswant = width1 - 1;
4317 	    if (curwin->w_virtcol > curwin->w_curswant)
4318 		curwin->w_curswant += ((curwin->w_virtcol
4319 			     - curwin->w_curswant - 1) / width2 + 1) * width2;
4320 	}
4321       }
4322       else
4323       {
4324 	if (linelen > width1)
4325 	    n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4326 	else
4327 	    n = width1;
4328 	if (curwin->w_curswant > (colnr_T)n + 1)
4329 	    curwin->w_curswant -= ((curwin->w_curswant - n) / width2 + 1)
4330 								     * width2;
4331       }
4332 
4333       while (dist--)
4334       {
4335 	if (dir == BACKWARD)
4336 	{
4337 	    if ((long)curwin->w_curswant >= width2)
4338 		/* move back within line */
4339 		curwin->w_curswant -= width2;
4340 	    else
4341 	    {
4342 		/* to previous line */
4343 		if (curwin->w_cursor.lnum == 1)
4344 		{
4345 		    retval = FAIL;
4346 		    break;
4347 		}
4348 		--curwin->w_cursor.lnum;
4349 #ifdef FEAT_FOLDING
4350 		/* Move to the start of a closed fold.  Don't do that when
4351 		 * 'foldopen' contains "all": it will open in a moment. */
4352 		if (!(fdo_flags & FDO_ALL))
4353 		    (void)hasFolding(curwin->w_cursor.lnum,
4354 						&curwin->w_cursor.lnum, NULL);
4355 #endif
4356 		linelen = linetabsize(ml_get_curline());
4357 		if (linelen > width1)
4358 		    curwin->w_curswant += (((linelen - width1 - 1) / width2)
4359 								+ 1) * width2;
4360 	    }
4361 	}
4362 	else /* dir == FORWARD */
4363 	{
4364 	    if (linelen > width1)
4365 		n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4366 	    else
4367 		n = width1;
4368 	    if (curwin->w_curswant + width2 < (colnr_T)n)
4369 		/* move forward within line */
4370 		curwin->w_curswant += width2;
4371 	    else
4372 	    {
4373 		/* to next line */
4374 #ifdef FEAT_FOLDING
4375 		/* Move to the end of a closed fold. */
4376 		(void)hasFolding(curwin->w_cursor.lnum, NULL,
4377 						      &curwin->w_cursor.lnum);
4378 #endif
4379 		if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4380 		{
4381 		    retval = FAIL;
4382 		    break;
4383 		}
4384 		curwin->w_cursor.lnum++;
4385 		curwin->w_curswant %= width2;
4386 	    }
4387 	}
4388       }
4389 #ifdef FEAT_VERTSPLIT
4390     }
4391 #endif
4392 
4393     coladvance(curwin->w_curswant);
4394 
4395 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
4396     if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
4397     {
4398 	/*
4399 	 * Check for landing on a character that got split at the end of the
4400 	 * last line.  We want to advance a screenline, not end up in the same
4401 	 * screenline or move two screenlines.
4402 	 */
4403 	validate_virtcol();
4404 	if (curwin->w_virtcol > curwin->w_curswant
4405 		&& (curwin->w_curswant < (colnr_T)width1
4406 		    ? (curwin->w_curswant > (colnr_T)width1 / 2)
4407 		    : ((curwin->w_curswant - width1) % width2
4408 						      > (colnr_T)width2 / 2)))
4409 	    --curwin->w_cursor.col;
4410     }
4411 #endif
4412 
4413     if (atend)
4414 	curwin->w_curswant = MAXCOL;	    /* stick in the last column */
4415 
4416     return retval;
4417 }
4418 
4419 #ifdef FEAT_MOUSE
4420 /*
4421  * Mouse scroll wheel: Default action is to scroll three lines, or one page
4422  * when Shift or Ctrl is used.
4423  * K_MOUSEUP (cap->arg == TRUE) or K_MOUSEDOWN (cap->arg == FALSE)
4424  */
4425     static void
4426 nv_mousescroll(cap)
4427     cmdarg_T	*cap;
4428 {
4429 # if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
4430     win_T *old_curwin = curwin;
4431 
4432     /* Currently we only get the mouse coordinates in the GUI. */
4433     if (gui.in_use && mouse_row >= 0 && mouse_col >= 0)
4434     {
4435 	int row, col;
4436 
4437 	row = mouse_row;
4438 	col = mouse_col;
4439 
4440 	/* find the window at the pointer coordinates */
4441 	curwin = mouse_find_win(&row, &col);
4442 	curbuf = curwin->w_buffer;
4443     }
4444 # endif
4445 
4446     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4447     {
4448 	(void)onepage(cap->arg ? FORWARD : BACKWARD, 1L);
4449     }
4450     else
4451     {
4452 	cap->count1 = 3;
4453 	cap->count0 = 3;
4454 	nv_scroll_line(cap);
4455     }
4456 
4457 # if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
4458     curwin->w_redr_status = TRUE;
4459 
4460     curwin = old_curwin;
4461     curbuf = curwin->w_buffer;
4462 # endif
4463 }
4464 
4465 /*
4466  * Mouse clicks and drags.
4467  */
4468     static void
4469 nv_mouse(cap)
4470     cmdarg_T	*cap;
4471 {
4472     (void)do_mouse(cap->oap, cap->cmdchar, BACKWARD, cap->count1, 0);
4473 }
4474 #endif
4475 
4476 /*
4477  * Handle CTRL-E and CTRL-Y commands: scroll a line up or down.
4478  * cap->arg must be TRUE for CTRL-E.
4479  */
4480     static void
4481 nv_scroll_line(cap)
4482     cmdarg_T	*cap;
4483 {
4484     if (!checkclearop(cap->oap))
4485 	scroll_redraw(cap->arg, cap->count1);
4486 }
4487 
4488 /*
4489  * Scroll "count" lines up or down, and redraw.
4490  */
4491     void
4492 scroll_redraw(up, count)
4493     int		up;
4494     long	count;
4495 {
4496     linenr_T	prev_topline = curwin->w_topline;
4497 #ifdef FEAT_DIFF
4498     int		prev_topfill = curwin->w_topfill;
4499 #endif
4500     linenr_T	prev_lnum = curwin->w_cursor.lnum;
4501 
4502     if (up)
4503 	scrollup(count, TRUE);
4504     else
4505 	scrolldown(count, TRUE);
4506     if (p_so)
4507     {
4508 	/* Adjust the cursor position for 'scrolloff'.  Mark w_topline as
4509 	 * valid, otherwise the screen jumps back at the end of the file. */
4510 	cursor_correct();
4511 	check_cursor_moved(curwin);
4512 	curwin->w_valid |= VALID_TOPLINE;
4513 
4514 	/* If moved back to where we were, at least move the cursor, otherwise
4515 	 * we get stuck at one position.  Don't move the cursor up if the
4516 	 * first line of the buffer is already on the screen */
4517 	while (curwin->w_topline == prev_topline
4518 #ifdef FEAT_DIFF
4519 		&& curwin->w_topfill == prev_topfill
4520 #endif
4521 		)
4522 	{
4523 	    if (up)
4524 	    {
4525 		if (curwin->w_cursor.lnum > prev_lnum
4526 			|| cursor_down(1L, FALSE) == FAIL)
4527 		    break;
4528 	    }
4529 	    else
4530 	    {
4531 		if (curwin->w_cursor.lnum < prev_lnum
4532 			|| prev_topline == 1L
4533 			|| cursor_up(1L, FALSE) == FAIL)
4534 		    break;
4535 	    }
4536 	    /* Mark w_topline as valid, otherwise the screen jumps back at the
4537 	     * end of the file. */
4538 	    check_cursor_moved(curwin);
4539 	    curwin->w_valid |= VALID_TOPLINE;
4540 	}
4541     }
4542     if (curwin->w_cursor.lnum != prev_lnum)
4543 	coladvance(curwin->w_curswant);
4544     redraw_later(VALID);
4545 }
4546 
4547 /*
4548  * Commands that start with "z".
4549  */
4550     static void
4551 nv_zet(cap)
4552     cmdarg_T  *cap;
4553 {
4554     long	n;
4555     colnr_T	col;
4556     int		nchar = cap->nchar;
4557 #ifdef FEAT_FOLDING
4558     long	old_fdl = curwin->w_p_fdl;
4559     int		old_fen = curwin->w_p_fen;
4560 #endif
4561 #ifdef FEAT_SPELL
4562     int		undo = FALSE;
4563 #endif
4564 
4565     if (VIM_ISDIGIT(nchar))
4566     {
4567 	/*
4568 	 * "z123{nchar}": edit the count before obtaining {nchar}
4569 	 */
4570 	if (checkclearop(cap->oap))
4571 	    return;
4572 	n = nchar - '0';
4573 	for (;;)
4574 	{
4575 #ifdef USE_ON_FLY_SCROLL
4576 	    dont_scroll = TRUE;		/* disallow scrolling here */
4577 #endif
4578 	    ++no_mapping;
4579 	    ++allow_keys;   /* no mapping for nchar, but allow key codes */
4580 	    nchar = plain_vgetc();
4581 #ifdef FEAT_LANGMAP
4582 	    LANGMAP_ADJUST(nchar, TRUE);
4583 #endif
4584 	    --no_mapping;
4585 	    --allow_keys;
4586 #ifdef FEAT_CMDL_INFO
4587 	    (void)add_to_showcmd(nchar);
4588 #endif
4589 	    if (nchar == K_DEL || nchar == K_KDEL)
4590 		n /= 10;
4591 	    else if (VIM_ISDIGIT(nchar))
4592 		n = n * 10 + (nchar - '0');
4593 	    else if (nchar == CAR)
4594 	    {
4595 #ifdef FEAT_GUI
4596 		need_mouse_correct = TRUE;
4597 #endif
4598 		win_setheight((int)n);
4599 		break;
4600 	    }
4601 	    else if (nchar == 'l'
4602 		    || nchar == 'h'
4603 		    || nchar == K_LEFT
4604 		    || nchar == K_RIGHT)
4605 	    {
4606 		cap->count1 = n ? n * cap->count1 : cap->count1;
4607 		goto dozet;
4608 	    }
4609 	    else
4610 	    {
4611 		clearopbeep(cap->oap);
4612 		break;
4613 	    }
4614 	}
4615 	cap->oap->op_type = OP_NOP;
4616 	return;
4617     }
4618 
4619 dozet:
4620     if (
4621 #ifdef FEAT_FOLDING
4622 	    /* "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
4623 	     * and "zC" only in Visual mode.  "zj" and "zk" are motion
4624 	     * commands. */
4625 	    cap->nchar != 'f' && cap->nchar != 'F'
4626 	    && !(VIsual_active && vim_strchr((char_u *)"dcCoO", cap->nchar))
4627 	    && cap->nchar != 'j' && cap->nchar != 'k'
4628 	    &&
4629 #endif
4630 	    checkclearop(cap->oap))
4631 	return;
4632 
4633     /*
4634      * For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
4635      * If line number given, set cursor.
4636      */
4637     if ((vim_strchr((char_u *)"+\r\nt.z^-b", nchar) != NULL)
4638 	    && cap->count0
4639 	    && cap->count0 != curwin->w_cursor.lnum)
4640     {
4641 	setpcmark();
4642 	if (cap->count0 > curbuf->b_ml.ml_line_count)
4643 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4644 	else
4645 	    curwin->w_cursor.lnum = cap->count0;
4646 	check_cursor_col();
4647     }
4648 
4649     switch (nchar)
4650     {
4651 		/* "z+", "z<CR>" and "zt": put cursor at top of screen */
4652     case '+':
4653 		if (cap->count0 == 0)
4654 		{
4655 		    /* No count given: put cursor at the line below screen */
4656 		    validate_botline();	/* make sure w_botline is valid */
4657 		    if (curwin->w_botline > curbuf->b_ml.ml_line_count)
4658 			curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4659 		    else
4660 			curwin->w_cursor.lnum = curwin->w_botline;
4661 		}
4662 		/* FALLTHROUGH */
4663     case NL:
4664     case CAR:
4665     case K_KENTER:
4666 		beginline(BL_WHITE | BL_FIX);
4667 		/* FALLTHROUGH */
4668 
4669     case 't':	scroll_cursor_top(0, TRUE);
4670 		redraw_later(VALID);
4671 		break;
4672 
4673 		/* "z." and "zz": put cursor in middle of screen */
4674     case '.':	beginline(BL_WHITE | BL_FIX);
4675 		/* FALLTHROUGH */
4676 
4677     case 'z':	scroll_cursor_halfway(TRUE);
4678 		redraw_later(VALID);
4679 		break;
4680 
4681 		/* "z^", "z-" and "zb": put cursor at bottom of screen */
4682     case '^':	/* Strange Vi behavior: <count>z^ finds line at top of window
4683 		 * when <count> is at bottom of window, and puts that one at
4684 		 * bottom of window. */
4685 		if (cap->count0 != 0)
4686 		{
4687 		    scroll_cursor_bot(0, TRUE);
4688 		    curwin->w_cursor.lnum = curwin->w_topline;
4689 		}
4690 		else if (curwin->w_topline == 1)
4691 		    curwin->w_cursor.lnum = 1;
4692 		else
4693 		    curwin->w_cursor.lnum = curwin->w_topline - 1;
4694 		/* FALLTHROUGH */
4695     case '-':
4696 		beginline(BL_WHITE | BL_FIX);
4697 		/* FALLTHROUGH */
4698 
4699     case 'b':	scroll_cursor_bot(0, TRUE);
4700 		redraw_later(VALID);
4701 		break;
4702 
4703 		/* "zH" - scroll screen right half-page */
4704     case 'H':
4705 		cap->count1 *= W_WIDTH(curwin) / 2;
4706 		/* FALLTHROUGH */
4707 
4708 		/* "zh" - scroll screen to the right */
4709     case 'h':
4710     case K_LEFT:
4711 		if (!curwin->w_p_wrap)
4712 		{
4713 		    if ((colnr_T)cap->count1 > curwin->w_leftcol)
4714 			curwin->w_leftcol = 0;
4715 		    else
4716 			curwin->w_leftcol -= (colnr_T)cap->count1;
4717 		    leftcol_changed();
4718 		}
4719 		break;
4720 
4721 		/* "zL" - scroll screen left half-page */
4722     case 'L':	cap->count1 *= W_WIDTH(curwin) / 2;
4723 		/* FALLTHROUGH */
4724 
4725 		/* "zl" - scroll screen to the left */
4726     case 'l':
4727     case K_RIGHT:
4728 		if (!curwin->w_p_wrap)
4729 		{
4730 		    /* scroll the window left */
4731 		    curwin->w_leftcol += (colnr_T)cap->count1;
4732 		    leftcol_changed();
4733 		}
4734 		break;
4735 
4736 		/* "zs" - scroll screen, cursor at the start */
4737     case 's':	if (!curwin->w_p_wrap)
4738 		{
4739 #ifdef FEAT_FOLDING
4740 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4741 			col = 0;	/* like the cursor is in col 0 */
4742 		    else
4743 #endif
4744 		    getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
4745 		    if ((long)col > p_siso)
4746 			col -= p_siso;
4747 		    else
4748 			col = 0;
4749 		    if (curwin->w_leftcol != col)
4750 		    {
4751 			curwin->w_leftcol = col;
4752 			redraw_later(NOT_VALID);
4753 		    }
4754 		}
4755 		break;
4756 
4757 		/* "ze" - scroll screen, cursor at the end */
4758     case 'e':	if (!curwin->w_p_wrap)
4759 		{
4760 #ifdef FEAT_FOLDING
4761 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4762 			col = 0;	/* like the cursor is in col 0 */
4763 		    else
4764 #endif
4765 		    getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
4766 		    n = W_WIDTH(curwin) - curwin_col_off();
4767 		    if ((long)col + p_siso < n)
4768 			col = 0;
4769 		    else
4770 			col = col + p_siso - n + 1;
4771 		    if (curwin->w_leftcol != col)
4772 		    {
4773 			curwin->w_leftcol = col;
4774 			redraw_later(NOT_VALID);
4775 		    }
4776 		}
4777 		break;
4778 
4779 #ifdef FEAT_FOLDING
4780 		/* "zF": create fold command */
4781 		/* "zf": create fold operator */
4782     case 'F':
4783     case 'f':   if (foldManualAllowed(TRUE))
4784 		{
4785 		    cap->nchar = 'f';
4786 		    nv_operator(cap);
4787 		    curwin->w_p_fen = TRUE;
4788 
4789 		    /* "zF" is like "zfzf" */
4790 		    if (nchar == 'F' && cap->oap->op_type == OP_FOLD)
4791 		    {
4792 			nv_operator(cap);
4793 			finish_op = TRUE;
4794 		    }
4795 		}
4796 		else
4797 		    clearopbeep(cap->oap);
4798 		break;
4799 
4800 		/* "zd": delete fold at cursor */
4801 		/* "zD": delete fold at cursor recursively */
4802     case 'd':
4803     case 'D':	if (foldManualAllowed(FALSE))
4804 		{
4805 		    if (VIsual_active)
4806 			nv_operator(cap);
4807 		    else
4808 			deleteFold(curwin->w_cursor.lnum,
4809 				  curwin->w_cursor.lnum, nchar == 'D', FALSE);
4810 		}
4811 		break;
4812 
4813 		/* "zE": erease all folds */
4814     case 'E':	if (foldmethodIsManual(curwin))
4815 		{
4816 		    clearFolding(curwin);
4817 		    changed_window_setting();
4818 		}
4819 		else if (foldmethodIsMarker(curwin))
4820 		    deleteFold((linenr_T)1, curbuf->b_ml.ml_line_count,
4821 								 TRUE, FALSE);
4822 		else
4823 		    EMSG(_("E352: Cannot erase folds with current 'foldmethod'"));
4824 		break;
4825 
4826 		/* "zn": fold none: reset 'foldenable' */
4827     case 'n':	curwin->w_p_fen = FALSE;
4828 		break;
4829 
4830 		/* "zN": fold Normal: set 'foldenable' */
4831     case 'N':	curwin->w_p_fen = TRUE;
4832 		break;
4833 
4834 		/* "zi": invert folding: toggle 'foldenable' */
4835     case 'i':	curwin->w_p_fen = !curwin->w_p_fen;
4836 		break;
4837 
4838 		/* "za": open closed fold or close open fold at cursor */
4839     case 'a':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4840 		    openFold(curwin->w_cursor.lnum, cap->count1);
4841 		else
4842 		{
4843 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4844 		    curwin->w_p_fen = TRUE;
4845 		}
4846 		break;
4847 
4848 		/* "zA": open fold at cursor recursively */
4849     case 'A':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4850 		    openFoldRecurse(curwin->w_cursor.lnum);
4851 		else
4852 		{
4853 		    closeFoldRecurse(curwin->w_cursor.lnum);
4854 		    curwin->w_p_fen = TRUE;
4855 		}
4856 		break;
4857 
4858 		/* "zo": open fold at cursor or Visual area */
4859     case 'o':	if (VIsual_active)
4860 		    nv_operator(cap);
4861 		else
4862 		    openFold(curwin->w_cursor.lnum, cap->count1);
4863 		break;
4864 
4865 		/* "zO": open fold recursively */
4866     case 'O':	if (VIsual_active)
4867 		    nv_operator(cap);
4868 		else
4869 		    openFoldRecurse(curwin->w_cursor.lnum);
4870 		break;
4871 
4872 		/* "zc": close fold at cursor or Visual area */
4873     case 'c':	if (VIsual_active)
4874 		    nv_operator(cap);
4875 		else
4876 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4877 		curwin->w_p_fen = TRUE;
4878 		break;
4879 
4880 		/* "zC": close fold recursively */
4881     case 'C':	if (VIsual_active)
4882 		    nv_operator(cap);
4883 		else
4884 		    closeFoldRecurse(curwin->w_cursor.lnum);
4885 		curwin->w_p_fen = TRUE;
4886 		break;
4887 
4888 		/* "zv": open folds at the cursor */
4889     case 'v':	foldOpenCursor();
4890 		break;
4891 
4892 		/* "zx": re-apply 'foldlevel' and open folds at the cursor */
4893     case 'x':	curwin->w_p_fen = TRUE;
4894 		newFoldLevel();		/* update right now */
4895 		foldOpenCursor();
4896 		break;
4897 
4898 		/* "zX": undo manual opens/closes, re-apply 'foldlevel' */
4899     case 'X':	curwin->w_p_fen = TRUE;
4900 		old_fdl = -1;		/* force an update */
4901 		break;
4902 
4903 		/* "zm": fold more */
4904     case 'm':	if (curwin->w_p_fdl > 0)
4905 		    --curwin->w_p_fdl;
4906 		old_fdl = -1;		/* force an update */
4907 		curwin->w_p_fen = TRUE;
4908 		break;
4909 
4910 		/* "zM": close all folds */
4911     case 'M':	curwin->w_p_fdl = 0;
4912 		old_fdl = -1;		/* force an update */
4913 		curwin->w_p_fen = TRUE;
4914 		break;
4915 
4916 		/* "zr": reduce folding */
4917     case 'r':	++curwin->w_p_fdl;
4918 		break;
4919 
4920 		/* "zR": open all folds */
4921     case 'R':	curwin->w_p_fdl = getDeepestNesting();
4922 		old_fdl = -1;		/* force an update */
4923 		break;
4924 
4925     case 'j':	/* "zj" move to next fold downwards */
4926     case 'k':	/* "zk" move to next fold upwards */
4927 		if (foldMoveTo(TRUE, nchar == 'j' ? FORWARD : BACKWARD,
4928 							  cap->count1) == FAIL)
4929 		    clearopbeep(cap->oap);
4930 		break;
4931 
4932 #endif /* FEAT_FOLDING */
4933 
4934 #ifdef FEAT_SPELL
4935     case 'u':	/* "zug" and "zuw": undo "zg" and "zw" */
4936 		++no_mapping;
4937 		++allow_keys;   /* no mapping for nchar, but allow key codes */
4938 		nchar = plain_vgetc();
4939 #ifdef FEAT_LANGMAP
4940 		LANGMAP_ADJUST(nchar, TRUE);
4941 #endif
4942 		--no_mapping;
4943 		--allow_keys;
4944 #ifdef FEAT_CMDL_INFO
4945 		(void)add_to_showcmd(nchar);
4946 #endif
4947 		if (vim_strchr((char_u *)"gGwW", nchar) == NULL)
4948 		{
4949 		    clearopbeep(cap->oap);
4950 		    break;
4951 		}
4952 		undo = TRUE;
4953 		/*FALLTHROUGH*/
4954 
4955     case 'g':	/* "zg": add good word to word list */
4956     case 'w':	/* "zw": add wrong word to word list */
4957     case 'G':	/* "zG": add good word to temp word list */
4958     case 'W':	/* "zW": add wrong word to temp word list */
4959 		{
4960 		    char_u  *ptr = NULL;
4961 		    int	    len;
4962 
4963 		    if (checkclearop(cap->oap))
4964 			break;
4965 # ifdef FEAT_VISUAL
4966 		    if (VIsual_active && get_visual_text(cap, &ptr, &len)
4967 								      == FAIL)
4968 			return;
4969 # endif
4970 		    if (ptr == NULL)
4971 		    {
4972 			pos_T	pos = curwin->w_cursor;
4973 
4974 			/* Find bad word under the cursor. */
4975 			len = spell_move_to(curwin, FORWARD, TRUE, TRUE, NULL);
4976 			if (len != 0 && curwin->w_cursor.col <= pos.col)
4977 			    ptr = ml_get_pos(&curwin->w_cursor);
4978 			curwin->w_cursor = pos;
4979 		    }
4980 
4981 		    if (ptr == NULL && (len = find_ident_under_cursor(&ptr,
4982 							    FIND_IDENT)) == 0)
4983 			return;
4984 		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W',
4985 					    (nchar == 'G' || nchar == 'W')
4986 						       ? 0 : (int)cap->count1,
4987 					    undo);
4988 		}
4989 		break;
4990 
4991     case '=':	/* "z=": suggestions for a badly spelled word  */
4992 		if (!checkclearop(cap->oap))
4993 		    spell_suggest((int)cap->count0);
4994 		break;
4995 #endif
4996 
4997     default:	clearopbeep(cap->oap);
4998     }
4999 
5000 #ifdef FEAT_FOLDING
5001     /* Redraw when 'foldenable' changed */
5002     if (old_fen != curwin->w_p_fen)
5003     {
5004 # ifdef FEAT_DIFF
5005 	win_T	    *wp;
5006 
5007 	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
5008 	{
5009 	    /* Adjust 'foldenable' in diff-synced windows. */
5010 	    FOR_ALL_WINDOWS(wp)
5011 	    {
5012 		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
5013 		{
5014 		    wp->w_p_fen = curwin->w_p_fen;
5015 		    changed_window_setting_win(wp);
5016 		}
5017 	    }
5018 	}
5019 # endif
5020 	changed_window_setting();
5021     }
5022 
5023     /* Redraw when 'foldlevel' changed. */
5024     if (old_fdl != curwin->w_p_fdl)
5025 	newFoldLevel();
5026 #endif
5027 }
5028 
5029 #ifdef FEAT_GUI
5030 /*
5031  * Vertical scrollbar movement.
5032  */
5033     static void
5034 nv_ver_scrollbar(cap)
5035     cmdarg_T	*cap;
5036 {
5037     if (cap->oap->op_type != OP_NOP)
5038 	clearopbeep(cap->oap);
5039 
5040     /* Even if an operator was pending, we still want to scroll */
5041     gui_do_scroll();
5042 }
5043 
5044 /*
5045  * Horizontal scrollbar movement.
5046  */
5047     static void
5048 nv_hor_scrollbar(cap)
5049     cmdarg_T	*cap;
5050 {
5051     if (cap->oap->op_type != OP_NOP)
5052 	clearopbeep(cap->oap);
5053 
5054     /* Even if an operator was pending, we still want to scroll */
5055     gui_do_horiz_scroll();
5056 }
5057 #endif
5058 
5059 #if defined(FEAT_GUI_TABLINE) || defined(PROTO)
5060 /*
5061  * Click in GUI tab.
5062  */
5063     static void
5064 nv_tabline(cap)
5065     cmdarg_T	*cap;
5066 {
5067     if (cap->oap->op_type != OP_NOP)
5068 	clearopbeep(cap->oap);
5069 
5070     /* Even if an operator was pending, we still want to jump tabs. */
5071     goto_tabpage(current_tab);
5072 }
5073 
5074 /*
5075  * Selected item in tab line menu.
5076  */
5077     static void
5078 nv_tabmenu(cap)
5079     cmdarg_T	*cap;
5080 {
5081     if (cap->oap->op_type != OP_NOP)
5082 	clearopbeep(cap->oap);
5083 
5084     /* Even if an operator was pending, we still want to jump tabs. */
5085     handle_tabmenu();
5086 }
5087 
5088 /*
5089  * Handle selecting an item of the GUI tab line menu.
5090  * Used in Normal and Insert mode.
5091  */
5092     void
5093 handle_tabmenu()
5094 {
5095     switch (current_tabmenu)
5096     {
5097 	case TABLINE_MENU_CLOSE:
5098 	    if (current_tab == 0)
5099 		do_cmdline_cmd((char_u *)"tabclose");
5100 	    else
5101 	    {
5102 		vim_snprintf((char *)IObuff, IOSIZE, "tabclose %d",
5103 								 current_tab);
5104 		do_cmdline_cmd(IObuff);
5105 	    }
5106 	    break;
5107 
5108 	case TABLINE_MENU_NEW:
5109 	    vim_snprintf((char *)IObuff, IOSIZE, "%dtabnew",
5110 				     current_tab > 0 ? current_tab - 1 : 999);
5111 	    do_cmdline_cmd(IObuff);
5112 	    break;
5113 
5114 	case TABLINE_MENU_OPEN:
5115 	    vim_snprintf((char *)IObuff, IOSIZE, "browse %dtabnew",
5116 				     current_tab > 0 ? current_tab - 1 : 999);
5117 	    do_cmdline_cmd(IObuff);
5118 	    break;
5119     }
5120 }
5121 #endif
5122 
5123 /*
5124  * "Q" command.
5125  */
5126     static void
5127 nv_exmode(cap)
5128     cmdarg_T	*cap;
5129 {
5130     /*
5131      * Ignore 'Q' in Visual mode, just give a beep.
5132      */
5133 #ifdef FEAT_VISUAL
5134     if (VIsual_active)
5135 	vim_beep();
5136     else
5137 #endif
5138 	if (!checkclearop(cap->oap))
5139 	do_exmode(FALSE);
5140 }
5141 
5142 /*
5143  * Handle a ":" command.
5144  */
5145     static void
5146 nv_colon(cap)
5147     cmdarg_T  *cap;
5148 {
5149     int	    old_p_im;
5150 
5151 #ifdef FEAT_VISUAL
5152     if (VIsual_active)
5153 	nv_operator(cap);
5154     else
5155 #endif
5156     {
5157 	if (cap->oap->op_type != OP_NOP)
5158 	{
5159 	    /* Using ":" as a movement is characterwise exclusive. */
5160 	    cap->oap->motion_type = MCHAR;
5161 	    cap->oap->inclusive = FALSE;
5162 	}
5163 	else if (cap->count0)
5164 	{
5165 	    /* translate "count:" into ":.,.+(count - 1)" */
5166 	    stuffcharReadbuff('.');
5167 	    if (cap->count0 > 1)
5168 	    {
5169 		stuffReadbuff((char_u *)",.+");
5170 		stuffnumReadbuff((long)cap->count0 - 1L);
5171 	    }
5172 	}
5173 
5174 	/* When typing, don't type below an old message */
5175 	if (KeyTyped)
5176 	    compute_cmdrow();
5177 
5178 	old_p_im = p_im;
5179 
5180 	/* get a command line and execute it */
5181 	do_cmdline(NULL, getexline, NULL,
5182 			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
5183 
5184 	/* If 'insertmode' changed, enter or exit Insert mode */
5185 	if (p_im != old_p_im)
5186 	{
5187 	    if (p_im)
5188 		restart_edit = 'i';
5189 	    else
5190 		restart_edit = 0;
5191 	}
5192 
5193 	/* The start of the operator may have become invalid by the Ex
5194 	 * command. */
5195 	if (cap->oap->op_type != OP_NOP
5196 		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
5197 		    || cap->oap->start.col >
5198 					 STRLEN(ml_get(cap->oap->start.lnum))))
5199 	    clearopbeep(cap->oap);
5200     }
5201 }
5202 
5203 /*
5204  * Handle CTRL-G command.
5205  */
5206     static void
5207 nv_ctrlg(cap)
5208     cmdarg_T *cap;
5209 {
5210 #ifdef FEAT_VISUAL
5211     if (VIsual_active)	/* toggle Selection/Visual mode */
5212     {
5213 	VIsual_select = !VIsual_select;
5214 	showmode();
5215     }
5216     else
5217 #endif
5218 	if (!checkclearop(cap->oap))
5219 	/* print full name if count given or :cd used */
5220 	fileinfo((int)cap->count0, FALSE, TRUE);
5221 }
5222 
5223 /*
5224  * Handle CTRL-H <Backspace> command.
5225  */
5226     static void
5227 nv_ctrlh(cap)
5228     cmdarg_T *cap;
5229 {
5230 #ifdef FEAT_VISUAL
5231     if (VIsual_active && VIsual_select)
5232     {
5233 	cap->cmdchar = 'x';	/* BS key behaves like 'x' in Select mode */
5234 	v_visop(cap);
5235     }
5236     else
5237 #endif
5238 	nv_left(cap);
5239 }
5240 
5241 /*
5242  * CTRL-L: clear screen and redraw.
5243  */
5244     static void
5245 nv_clear(cap)
5246     cmdarg_T	*cap;
5247 {
5248     if (!checkclearop(cap->oap))
5249     {
5250 #if defined(__BEOS__) && !USE_THREAD_FOR_INPUT_WITH_TIMEOUT
5251 	/*
5252 	 * Right now, the BeBox doesn't seem to have an easy way to detect
5253 	 * window resizing, so we cheat and make the user detect it
5254 	 * manually with CTRL-L instead
5255 	 */
5256 	ui_get_shellsize();
5257 #endif
5258 #ifdef FEAT_SYN_HL
5259 	/* Clear all syntax states to force resyncing. */
5260 	syn_stack_free_all(curbuf);
5261 #endif
5262 	redraw_later(CLEAR);
5263     }
5264 }
5265 
5266 /*
5267  * CTRL-O: In Select mode: switch to Visual mode for one command.
5268  * Otherwise: Go to older pcmark.
5269  */
5270     static void
5271 nv_ctrlo(cap)
5272     cmdarg_T	*cap;
5273 {
5274 #ifdef FEAT_VISUAL
5275     if (VIsual_active && VIsual_select)
5276     {
5277 	VIsual_select = FALSE;
5278 	showmode();
5279 	restart_VIsual_select = 2;	/* restart Select mode later */
5280     }
5281     else
5282 #endif
5283     {
5284 	cap->count1 = -cap->count1;
5285 	nv_pcmark(cap);
5286     }
5287 }
5288 
5289 /*
5290  * CTRL-^ command, short for ":e #"
5291  */
5292     static void
5293 nv_hat(cap)
5294     cmdarg_T	*cap;
5295 {
5296     if (!checkclearopq(cap->oap))
5297 	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
5298 						GETF_SETMARK|GETF_ALT, FALSE);
5299 }
5300 
5301 /*
5302  * "Z" commands.
5303  */
5304     static void
5305 nv_Zet(cap)
5306     cmdarg_T *cap;
5307 {
5308     if (!checkclearopq(cap->oap))
5309     {
5310 	switch (cap->nchar)
5311 	{
5312 			/* "ZZ": equivalent to ":x". */
5313 	    case 'Z':	do_cmdline_cmd((char_u *)"x");
5314 			break;
5315 
5316 			/* "ZQ": equivalent to ":q!" (Elvis compatible). */
5317 	    case 'Q':	do_cmdline_cmd((char_u *)"q!");
5318 			break;
5319 
5320 	    default:	clearopbeep(cap->oap);
5321 	}
5322     }
5323 }
5324 
5325 #if defined(FEAT_WINDOWS) || defined(PROTO)
5326 /*
5327  * Call nv_ident() as if "c1" was used, with "c2" as next character.
5328  */
5329     void
5330 do_nv_ident(c1, c2)
5331     int		c1;
5332     int		c2;
5333 {
5334     oparg_T	oa;
5335     cmdarg_T	ca;
5336 
5337     clear_oparg(&oa);
5338     vim_memset(&ca, 0, sizeof(ca));
5339     ca.oap = &oa;
5340     ca.cmdchar = c1;
5341     ca.nchar = c2;
5342     nv_ident(&ca);
5343 }
5344 #endif
5345 
5346 /*
5347  * Handle the commands that use the word under the cursor.
5348  * [g] CTRL-]	:ta to current identifier
5349  * [g] 'K'	run program for current identifier
5350  * [g] '*'	/ to current identifier or string
5351  * [g] '#'	? to current identifier or string
5352  *  g  ']'	:tselect for current identifier
5353  */
5354     static void
5355 nv_ident(cap)
5356     cmdarg_T	*cap;
5357 {
5358     char_u	*ptr = NULL;
5359     char_u	*buf;
5360     char_u	*p;
5361     char_u	*kp;		/* value of 'keywordprg' */
5362     int		kp_help;	/* 'keywordprg' is ":help" */
5363     int		n = 0;		/* init for GCC */
5364     int		cmdchar;
5365     int		g_cmd;		/* "g" command */
5366     char_u	*aux_ptr;
5367     int		isman;
5368     int		isman_s;
5369 
5370     if (cap->cmdchar == 'g')	/* "g*", "g#", "g]" and "gCTRL-]" */
5371     {
5372 	cmdchar = cap->nchar;
5373 	g_cmd = TRUE;
5374     }
5375     else
5376     {
5377 	cmdchar = cap->cmdchar;
5378 	g_cmd = FALSE;
5379     }
5380 
5381     if (cmdchar == POUND)	/* the pound sign, '#' for English keyboards */
5382 	cmdchar = '#';
5383 
5384     /*
5385      * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
5386      */
5387     if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
5388     {
5389 #ifdef FEAT_VISUAL
5390 	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
5391 	    return;
5392 #endif
5393 	if (checkclearopq(cap->oap))
5394 	    return;
5395     }
5396 
5397     if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
5398 		    (cmdchar == '*' || cmdchar == '#')
5399 				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
5400     {
5401 	clearop(cap->oap);
5402 	return;
5403     }
5404 
5405     /* Allocate buffer to put the command in.  Inserting backslashes can
5406      * double the length of the word.  p_kp / curbuf->b_p_kp could be added
5407      * and some numbers. */
5408     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
5409     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
5410 						 || STRCMP(kp, ":help") == 0);
5411     buf = alloc((unsigned)(n * 2 + 30 + STRLEN(kp)));
5412     if (buf == NULL)
5413 	return;
5414     buf[0] = NUL;
5415 
5416     switch (cmdchar)
5417     {
5418 	case '*':
5419 	case '#':
5420 	    /*
5421 	     * Put cursor at start of word, makes search skip the word
5422 	     * under the cursor.
5423 	     * Call setpcmark() first, so "*``" puts the cursor back where
5424 	     * it was.
5425 	     */
5426 	    setpcmark();
5427 	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());
5428 
5429 	    if (!g_cmd && vim_iswordp(ptr))
5430 		STRCPY(buf, "\\<");
5431 	    no_smartcase = TRUE;	/* don't use 'smartcase' now */
5432 	    break;
5433 
5434 	case 'K':
5435 	    if (kp_help)
5436 		STRCPY(buf, "he! ");
5437 	    else
5438 	    {
5439 		/* When a count is given, turn it into a range.  Is this
5440 		 * really what we want? */
5441 		isman = (STRCMP(kp, "man") == 0);
5442 		isman_s = (STRCMP(kp, "man -s") == 0);
5443 		if (cap->count0 != 0 && !(isman || isman_s))
5444 		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);
5445 
5446 		STRCAT(buf, "! ");
5447 		if (cap->count0 == 0 && isman_s)
5448 		    STRCAT(buf, "man");
5449 		else
5450 		    STRCAT(buf, kp);
5451 		STRCAT(buf, " ");
5452 		if (cap->count0 != 0 && (isman || isman_s))
5453 		{
5454 		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
5455 		    STRCAT(buf, " ");
5456 		}
5457 	    }
5458 	    break;
5459 
5460 	case ']':
5461 #ifdef FEAT_CSCOPE
5462 	    if (p_cst)
5463 		STRCPY(buf, "cstag ");
5464 	    else
5465 #endif
5466 		STRCPY(buf, "ts ");
5467 	    break;
5468 
5469 	default:
5470 	    if (curbuf->b_help)
5471 		STRCPY(buf, "he! ");
5472 	    else if (g_cmd)
5473 		STRCPY(buf, "tj ");
5474 	    else
5475 		sprintf((char *)buf, "%ldta ", cap->count0);
5476     }
5477 
5478     /*
5479      * Now grab the chars in the identifier
5480      */
5481     if (cmdchar == '*')
5482 	aux_ptr = (char_u *)(p_magic ? "/.*~[^$\\" : "/^$\\");
5483     else if (cmdchar == '#')
5484 	aux_ptr = (char_u *)(p_magic ? "/?.*~[^$\\" : "/?^$\\");
5485     else if (cmdchar == 'K' && !kp_help)
5486 	aux_ptr = (char_u *)" \t\\\"|!";
5487     else
5488 	/* Don't escape spaces and Tabs in a tag with a backslash */
5489 	aux_ptr = (char_u *)"\\|\"";
5490 
5491     p = buf + STRLEN(buf);
5492     while (n-- > 0)
5493     {
5494 	/* put a backslash before \ and some others */
5495 	if (vim_strchr(aux_ptr, *ptr) != NULL)
5496 	    *p++ = '\\';
5497 #ifdef FEAT_MBYTE
5498 	/* When current byte is a part of multibyte character, copy all bytes
5499 	 * of that character. */
5500 	if (has_mbyte)
5501 	{
5502 	    int i;
5503 	    int len = (*mb_ptr2len)(ptr) - 1;
5504 
5505 	    for (i = 0; i < len && n >= 1; ++i, --n)
5506 		*p++ = *ptr++;
5507 	}
5508 #endif
5509 	*p++ = *ptr++;
5510     }
5511     *p = NUL;
5512 
5513     /*
5514      * Execute the command.
5515      */
5516     if (cmdchar == '*' || cmdchar == '#')
5517     {
5518 	if (!g_cmd && (
5519 #ifdef FEAT_MBYTE
5520 		has_mbyte ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr)) :
5521 #endif
5522 		vim_iswordc(ptr[-1])))
5523 	    STRCAT(buf, "\\>");
5524 #ifdef FEAT_CMDHIST
5525 	/* put pattern in search history */
5526 	add_to_history(HIST_SEARCH, buf, TRUE, NUL);
5527 #endif
5528 	normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0);
5529     }
5530     else
5531 	do_cmdline_cmd(buf);
5532 
5533     vim_free(buf);
5534 }
5535 
5536 #if defined(FEAT_VISUAL) || defined(PROTO)
5537 /*
5538  * Get visually selected text, within one line only.
5539  * Returns FAIL if more than one line selected.
5540  */
5541     int
5542 get_visual_text(cap, pp, lenp)
5543     cmdarg_T	*cap;
5544     char_u	**pp;	    /* return: start of selected text */
5545     int		*lenp;	    /* return: length of selected text */
5546 {
5547     if (VIsual_mode != 'V')
5548 	unadjust_for_sel();
5549     if (VIsual.lnum != curwin->w_cursor.lnum)
5550     {
5551 	if (cap != NULL)
5552 	    clearopbeep(cap->oap);
5553 	return FAIL;
5554     }
5555     if (VIsual_mode == 'V')
5556     {
5557 	*pp = ml_get_curline();
5558 	*lenp = (int)STRLEN(*pp);
5559     }
5560     else
5561     {
5562 	if (lt(curwin->w_cursor, VIsual))
5563 	{
5564 	    *pp = ml_get_pos(&curwin->w_cursor);
5565 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
5566 	}
5567 	else
5568 	{
5569 	    *pp = ml_get_pos(&VIsual);
5570 	    *lenp = curwin->w_cursor.col - VIsual.col + 1;
5571 	}
5572 #ifdef FEAT_MBYTE
5573 	if (has_mbyte)
5574 	    /* Correct the length to include the whole last character. */
5575 	    *lenp += (*mb_ptr2len)(*pp + (*lenp - 1)) - 1;
5576 #endif
5577     }
5578     reset_VIsual_and_resel();
5579     return OK;
5580 }
5581 #endif
5582 
5583 /*
5584  * CTRL-T: backwards in tag stack
5585  */
5586     static void
5587 nv_tagpop(cap)
5588     cmdarg_T	*cap;
5589 {
5590     if (!checkclearopq(cap->oap))
5591 	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
5592 }
5593 
5594 /*
5595  * Handle scrolling command 'H', 'L' and 'M'.
5596  */
5597     static void
5598 nv_scroll(cap)
5599     cmdarg_T  *cap;
5600 {
5601     int		used = 0;
5602     long	n;
5603 #ifdef FEAT_FOLDING
5604     linenr_T	lnum;
5605 #endif
5606     int		half;
5607 
5608     cap->oap->motion_type = MLINE;
5609     setpcmark();
5610 
5611     if (cap->cmdchar == 'L')
5612     {
5613 	validate_botline();	    /* make sure curwin->w_botline is valid */
5614 	curwin->w_cursor.lnum = curwin->w_botline - 1;
5615 	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
5616 	    curwin->w_cursor.lnum = 1;
5617 	else
5618 	{
5619 #ifdef FEAT_FOLDING
5620 	    if (hasAnyFolding(curwin))
5621 	    {
5622 		/* Count a fold for one screen line. */
5623 		for (n = cap->count1 - 1; n > 0
5624 			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
5625 		{
5626 		    (void)hasFolding(curwin->w_cursor.lnum,
5627 						&curwin->w_cursor.lnum, NULL);
5628 		    --curwin->w_cursor.lnum;
5629 		}
5630 	    }
5631 	    else
5632 #endif
5633 		curwin->w_cursor.lnum -= cap->count1 - 1;
5634 	}
5635     }
5636     else
5637     {
5638 	if (cap->cmdchar == 'M')
5639 	{
5640 #ifdef FEAT_DIFF
5641 	    /* Don't count filler lines above the window. */
5642 	    used -= diff_check_fill(curwin, curwin->w_topline)
5643 							  - curwin->w_topfill;
5644 #endif
5645 	    validate_botline();	    /* make sure w_empty_rows is valid */
5646 	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
5647 	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
5648 	    {
5649 #ifdef FEAT_DIFF
5650 		/* Count half he number of filler lines to be "below this
5651 		 * line" and half to be "above the next line". */
5652 		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
5653 							     + n) / 2 >= half)
5654 		{
5655 		    --n;
5656 		    break;
5657 		}
5658 #endif
5659 		used += plines(curwin->w_topline + n);
5660 		if (used >= half)
5661 		    break;
5662 #ifdef FEAT_FOLDING
5663 		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
5664 		    n = lnum - curwin->w_topline;
5665 #endif
5666 	    }
5667 	    if (n > 0 && used > curwin->w_height)
5668 		--n;
5669 	}
5670 	else /* (cap->cmdchar == 'H') */
5671 	{
5672 	    n = cap->count1 - 1;
5673 #ifdef FEAT_FOLDING
5674 	    if (hasAnyFolding(curwin))
5675 	    {
5676 		/* Count a fold for one screen line. */
5677 		lnum = curwin->w_topline;
5678 		while (n-- > 0 && lnum < curwin->w_botline - 1)
5679 		{
5680 		    hasFolding(lnum, NULL, &lnum);
5681 		    ++lnum;
5682 		}
5683 		n = lnum - curwin->w_topline;
5684 	    }
5685 #endif
5686 	}
5687 	curwin->w_cursor.lnum = curwin->w_topline + n;
5688 	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
5689 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
5690     }
5691 
5692     cursor_correct();	/* correct for 'so' */
5693     beginline(BL_SOL | BL_FIX);
5694 }
5695 
5696 /*
5697  * Cursor right commands.
5698  */
5699     static void
5700 nv_right(cap)
5701     cmdarg_T	*cap;
5702 {
5703     long	n;
5704 #ifdef FEAT_VISUAL
5705     int		PAST_LINE;
5706 #else
5707 # define PAST_LINE 0
5708 #endif
5709 
5710     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5711     {
5712 	/* <C-Right> and <S-Right> move a word or WORD right */
5713 	if (mod_mask & MOD_MASK_CTRL)
5714 	    cap->arg = TRUE;
5715 	nv_wordcmd(cap);
5716 	return;
5717     }
5718 
5719     cap->oap->motion_type = MCHAR;
5720     cap->oap->inclusive = FALSE;
5721 #ifdef FEAT_VISUAL
5722     PAST_LINE = (VIsual_active && *p_sel != 'o');
5723 
5724 # ifdef FEAT_VIRTUALEDIT
5725     /*
5726      * In virtual mode, there's no such thing as "PAST_LINE", as lines are
5727      * (theoretically) infinitely long.
5728      */
5729     if (virtual_active())
5730 	PAST_LINE = 0;
5731 # endif
5732 #endif
5733 
5734     for (n = cap->count1; n > 0; --n)
5735     {
5736 	if ((!PAST_LINE && oneright() == FAIL)
5737 		|| (PAST_LINE && *ml_get_cursor() == NUL))
5738 	{
5739 	    /*
5740 	     *	  <Space> wraps to next line if 'whichwrap' has 's'.
5741 	     *	      'l' wraps to next line if 'whichwrap' has 'l'.
5742 	     * CURS_RIGHT wraps to next line if 'whichwrap' has '>'.
5743 	     */
5744 	    if (       ((cap->cmdchar == ' '
5745 			    && vim_strchr(p_ww, 's') != NULL)
5746 			|| (cap->cmdchar == 'l'
5747 			    && vim_strchr(p_ww, 'l') != NULL)
5748 			|| (cap->cmdchar == K_RIGHT
5749 			    && vim_strchr(p_ww, '>') != NULL))
5750 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
5751 	    {
5752 		/* When deleting we also count the NL as a character.
5753 		 * Set cap->oap->inclusive when last char in the line is
5754 		 * included, move to next line after that */
5755 		if (	   cap->oap->op_type != OP_NOP
5756 			&& !cap->oap->inclusive
5757 			&& !lineempty(curwin->w_cursor.lnum))
5758 		    cap->oap->inclusive = TRUE;
5759 		else
5760 		{
5761 		    ++curwin->w_cursor.lnum;
5762 		    curwin->w_cursor.col = 0;
5763 #ifdef FEAT_VIRTUALEDIT
5764 		    curwin->w_cursor.coladd = 0;
5765 #endif
5766 		    curwin->w_set_curswant = TRUE;
5767 		    cap->oap->inclusive = FALSE;
5768 		}
5769 		continue;
5770 	    }
5771 	    if (cap->oap->op_type == OP_NOP)
5772 	    {
5773 		/* Only beep and flush if not moved at all */
5774 		if (n == cap->count1)
5775 		    beep_flush();
5776 	    }
5777 	    else
5778 	    {
5779 		if (!lineempty(curwin->w_cursor.lnum))
5780 		    cap->oap->inclusive = TRUE;
5781 	    }
5782 	    break;
5783 	}
5784 #ifdef FEAT_VISUAL
5785 	else if (PAST_LINE)
5786 	{
5787 	    curwin->w_set_curswant = TRUE;
5788 # ifdef FEAT_VIRTUALEDIT
5789 	    if (virtual_active())
5790 		oneright();
5791 	    else
5792 # endif
5793 	    {
5794 # ifdef FEAT_MBYTE
5795 		if (has_mbyte)
5796 		    curwin->w_cursor.col +=
5797 					 (*mb_ptr2len)(ml_get_cursor());
5798 		else
5799 # endif
5800 		    ++curwin->w_cursor.col;
5801 	    }
5802 	}
5803 #endif
5804     }
5805 #ifdef FEAT_FOLDING
5806     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5807 					       && cap->oap->op_type == OP_NOP)
5808 	foldOpenCursor();
5809 #endif
5810 }
5811 
5812 /*
5813  * Cursor left commands.
5814  *
5815  * Returns TRUE when operator end should not be adjusted.
5816  */
5817     static void
5818 nv_left(cap)
5819     cmdarg_T	*cap;
5820 {
5821     long	n;
5822 
5823     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5824     {
5825 	/* <C-Left> and <S-Left> move a word or WORD left */
5826 	if (mod_mask & MOD_MASK_CTRL)
5827 	    cap->arg = 1;
5828 	nv_bck_word(cap);
5829 	return;
5830     }
5831 
5832     cap->oap->motion_type = MCHAR;
5833     cap->oap->inclusive = FALSE;
5834     for (n = cap->count1; n > 0; --n)
5835     {
5836 	if (oneleft() == FAIL)
5837 	{
5838 	    /* <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
5839 	     *		 'h' wraps to previous line if 'whichwrap' has 'h'.
5840 	     *	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
5841 	     */
5842 	    if (       (((cap->cmdchar == K_BS
5843 				|| cap->cmdchar == Ctrl_H)
5844 			    && vim_strchr(p_ww, 'b') != NULL)
5845 			|| (cap->cmdchar == 'h'
5846 			    && vim_strchr(p_ww, 'h') != NULL)
5847 			|| (cap->cmdchar == K_LEFT
5848 			    && vim_strchr(p_ww, '<') != NULL))
5849 		    && curwin->w_cursor.lnum > 1)
5850 	    {
5851 		--(curwin->w_cursor.lnum);
5852 		coladvance((colnr_T)MAXCOL);
5853 		curwin->w_set_curswant = TRUE;
5854 
5855 		/* When the NL before the first char has to be deleted we
5856 		 * put the cursor on the NUL after the previous line.
5857 		 * This is a very special case, be careful!
5858 		 * Don't adjust op_end now, otherwise it won't work. */
5859 		if (	   (cap->oap->op_type == OP_DELETE
5860 			    || cap->oap->op_type == OP_CHANGE)
5861 			&& !lineempty(curwin->w_cursor.lnum))
5862 		{
5863 		    if (*ml_get_cursor() != NUL)
5864 			++curwin->w_cursor.col;
5865 		    cap->retval |= CA_NO_ADJ_OP_END;
5866 		}
5867 		continue;
5868 	    }
5869 	    /* Only beep and flush if not moved at all */
5870 	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
5871 		beep_flush();
5872 	    break;
5873 	}
5874     }
5875 #ifdef FEAT_FOLDING
5876     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5877 					       && cap->oap->op_type == OP_NOP)
5878 	foldOpenCursor();
5879 #endif
5880 }
5881 
5882 /*
5883  * Cursor up commands.
5884  * cap->arg is TRUE for "-": Move cursor to first non-blank.
5885  */
5886     static void
5887 nv_up(cap)
5888     cmdarg_T	*cap;
5889 {
5890     if (mod_mask & MOD_MASK_SHIFT)
5891     {
5892 	/* <S-Up> is page up */
5893 	cap->arg = BACKWARD;
5894 	nv_page(cap);
5895     }
5896     else
5897     {
5898 	cap->oap->motion_type = MLINE;
5899 	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5900 	    clearopbeep(cap->oap);
5901 	else if (cap->arg)
5902 	    beginline(BL_WHITE | BL_FIX);
5903     }
5904 }
5905 
5906 /*
5907  * Cursor down commands.
5908  * cap->arg is TRUE for CR and "+": Move cursor to first non-blank.
5909  */
5910     static void
5911 nv_down(cap)
5912     cmdarg_T	*cap;
5913 {
5914     if (mod_mask & MOD_MASK_SHIFT)
5915     {
5916 	/* <S-Down> is page down */
5917 	cap->arg = FORWARD;
5918 	nv_page(cap);
5919     }
5920     else
5921 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5922     /* In a quickfix window a <CR> jumps to the error under the cursor. */
5923     if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
5924 	if (curwin->w_llist_ref == NULL)
5925 	    do_cmdline_cmd((char_u *)".cc");	/* quickfix window */
5926 	else
5927 	    do_cmdline_cmd((char_u *)".ll");	/* location list window */
5928     else
5929 #endif
5930     {
5931 #ifdef FEAT_CMDWIN
5932 	/* In the cmdline window a <CR> executes the command. */
5933 	if (cmdwin_type != 0 && cap->cmdchar == CAR)
5934 	    cmdwin_result = CAR;
5935 	else
5936 #endif
5937 	{
5938 	    cap->oap->motion_type = MLINE;
5939 	    if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5940 		clearopbeep(cap->oap);
5941 	    else if (cap->arg)
5942 		beginline(BL_WHITE | BL_FIX);
5943 	}
5944     }
5945 }
5946 
5947 #ifdef FEAT_SEARCHPATH
5948 /*
5949  * Grab the file name under the cursor and edit it.
5950  */
5951     static void
5952 nv_gotofile(cap)
5953     cmdarg_T	*cap;
5954 {
5955     char_u	*ptr;
5956     linenr_T	lnum = -1;
5957 
5958     if (text_locked())
5959     {
5960 	clearopbeep(cap->oap);
5961 	text_locked_msg();
5962 	return;
5963     }
5964 #ifdef FEAT_AUTOCMD
5965     if (curbuf_locked())
5966     {
5967 	clearop(cap->oap);
5968 	return;
5969     }
5970 #endif
5971 
5972     ptr = grab_file_name(cap->count1, &lnum);
5973 
5974     if (ptr != NULL)
5975     {
5976 	/* do autowrite if necessary */
5977 	if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !P_HID(curbuf))
5978 	    autowrite(curbuf, FALSE);
5979 	setpcmark();
5980 	(void)do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
5981 					       P_HID(curbuf) ? ECMD_HIDE : 0);
5982 	if (cap->nchar == 'F' && lnum >= 0)
5983 	{
5984 	    curwin->w_cursor.lnum = lnum;
5985 	    check_cursor_lnum();
5986 	    beginline(BL_SOL | BL_FIX);
5987 	}
5988 	vim_free(ptr);
5989     }
5990     else
5991 	clearop(cap->oap);
5992 }
5993 #endif
5994 
5995 /*
5996  * <End> command: to end of current line or last line.
5997  */
5998     static void
5999 nv_end(cap)
6000     cmdarg_T	*cap;
6001 {
6002     if (cap->arg || (mod_mask & MOD_MASK_CTRL))	/* CTRL-END = goto last line */
6003     {
6004 	cap->arg = TRUE;
6005 	nv_goto(cap);
6006 	cap->count1 = 1;		/* to end of current line */
6007     }
6008     nv_dollar(cap);
6009 }
6010 
6011 /*
6012  * Handle the "$" command.
6013  */
6014     static void
6015 nv_dollar(cap)
6016     cmdarg_T	*cap;
6017 {
6018     cap->oap->motion_type = MCHAR;
6019     cap->oap->inclusive = TRUE;
6020 #ifdef FEAT_VIRTUALEDIT
6021     /* In virtual mode when off the edge of a line and an operator
6022      * is pending (whew!) keep the cursor where it is.
6023      * Otherwise, send it to the end of the line. */
6024     if (!virtual_active() || gchar_cursor() != NUL
6025 					       || cap->oap->op_type == OP_NOP)
6026 #endif
6027 	curwin->w_curswant = MAXCOL;	/* so we stay at the end */
6028     if (cursor_down((long)(cap->count1 - 1),
6029 					 cap->oap->op_type == OP_NOP) == FAIL)
6030 	clearopbeep(cap->oap);
6031 #ifdef FEAT_FOLDING
6032     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6033 	foldOpenCursor();
6034 #endif
6035 }
6036 
6037 /*
6038  * Implementation of '?' and '/' commands.
6039  * If cap->arg is TRUE don't set PC mark.
6040  */
6041     static void
6042 nv_search(cap)
6043     cmdarg_T	    *cap;
6044 {
6045     oparg_T	*oap = cap->oap;
6046 
6047     if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
6048     {
6049 	/* Translate "g??" to "g?g?" */
6050 	cap->cmdchar = 'g';
6051 	cap->nchar = '?';
6052 	nv_operator(cap);
6053 	return;
6054     }
6055 
6056     cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0);
6057 
6058     if (cap->searchbuf == NULL)
6059     {
6060 	clearop(oap);
6061 	return;
6062     }
6063 
6064     normal_search(cap, cap->cmdchar, cap->searchbuf,
6065 						(cap->arg ? 0 : SEARCH_MARK));
6066 }
6067 
6068 /*
6069  * Handle "N" and "n" commands.
6070  * cap->arg is SEARCH_REV for "N", 0 for "n".
6071  */
6072     static void
6073 nv_next(cap)
6074     cmdarg_T	*cap;
6075 {
6076     normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
6077 }
6078 
6079 /*
6080  * Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
6081  * Uses only cap->count1 and cap->oap from "cap".
6082  */
6083     static void
6084 normal_search(cap, dir, pat, opt)
6085     cmdarg_T	*cap;
6086     int		dir;
6087     char_u	*pat;
6088     int		opt;		/* extra flags for do_search() */
6089 {
6090     int		i;
6091 
6092     cap->oap->motion_type = MCHAR;
6093     cap->oap->inclusive = FALSE;
6094     cap->oap->use_reg_one = TRUE;
6095     curwin->w_set_curswant = TRUE;
6096 
6097     i = do_search(cap->oap, dir, pat, cap->count1,
6098 			   opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG, NULL);
6099     if (i == 0)
6100 	clearop(cap->oap);
6101     else
6102     {
6103 	if (i == 2)
6104 	    cap->oap->motion_type = MLINE;
6105 #ifdef FEAT_VIRTUALEDIT
6106 	curwin->w_cursor.coladd = 0;
6107 #endif
6108 #ifdef FEAT_FOLDING
6109 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6110 	    foldOpenCursor();
6111 #endif
6112     }
6113 
6114     /* "/$" will put the cursor after the end of the line, may need to
6115      * correct that here */
6116     check_cursor();
6117 }
6118 
6119 /*
6120  * Character search commands.
6121  * cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', TRUE for
6122  * ',' and FALSE for ';'.
6123  * cap->nchar is NUL for ',' and ';' (repeat the search)
6124  */
6125     static void
6126 nv_csearch(cap)
6127     cmdarg_T	*cap;
6128 {
6129     int		t_cmd;
6130 
6131     if (cap->cmdchar == 't' || cap->cmdchar == 'T')
6132 	t_cmd = TRUE;
6133     else
6134 	t_cmd = FALSE;
6135 
6136     cap->oap->motion_type = MCHAR;
6137     if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
6138 	clearopbeep(cap->oap);
6139     else
6140     {
6141 	curwin->w_set_curswant = TRUE;
6142 #ifdef FEAT_VIRTUALEDIT
6143 	/* Include a Tab for "tx" and for "dfx". */
6144 	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
6145 		&& (t_cmd || cap->oap->op_type != OP_NOP))
6146 	{
6147 	    colnr_T	scol, ecol;
6148 
6149 	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
6150 	    curwin->w_cursor.coladd = ecol - scol;
6151 	}
6152 	else
6153 	    curwin->w_cursor.coladd = 0;
6154 #endif
6155 #ifdef FEAT_VISUAL
6156 	adjust_for_sel(cap);
6157 #endif
6158 #ifdef FEAT_FOLDING
6159 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6160 	    foldOpenCursor();
6161 #endif
6162     }
6163 }
6164 
6165 /*
6166  * "[" and "]" commands.
6167  * cap->arg is BACKWARD for "[" and FORWARD for "]".
6168  */
6169     static void
6170 nv_brackets(cap)
6171     cmdarg_T	*cap;
6172 {
6173     pos_T	new_pos;
6174     pos_T	prev_pos;
6175     pos_T	*pos = NULL;	    /* init for GCC */
6176     pos_T	old_pos;	    /* cursor position before command */
6177     int		flag;
6178     long	n;
6179     int		findc;
6180     int		c;
6181 
6182     cap->oap->motion_type = MCHAR;
6183     cap->oap->inclusive = FALSE;
6184     old_pos = curwin->w_cursor;
6185 #ifdef FEAT_VIRTUALEDIT
6186     curwin->w_cursor.coladd = 0;	    /* TODO: don't do this for an error. */
6187 #endif
6188 
6189 #ifdef FEAT_SEARCHPATH
6190     /*
6191      * "[f" or "]f" : Edit file under the cursor (same as "gf")
6192      */
6193     if (cap->nchar == 'f')
6194 	nv_gotofile(cap);
6195     else
6196 #endif
6197 
6198 #ifdef FEAT_FIND_ID
6199     /*
6200      * Find the occurrence(s) of the identifier or define under cursor
6201      * in current and included files or jump to the first occurrence.
6202      *
6203      *			search	     list	    jump
6204      *		      fwd   bwd    fwd	 bwd	 fwd	bwd
6205      * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
6206      * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
6207      */
6208     if (vim_strchr((char_u *)
6209 #ifdef EBCDIC
6210 		"iI\005dD\067",
6211 #else
6212 		"iI\011dD\004",
6213 #endif
6214 		cap->nchar) != NULL)
6215     {
6216 	char_u	*ptr;
6217 	int	len;
6218 
6219 	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
6220 	    clearop(cap->oap);
6221 	else
6222 	{
6223 	    find_pattern_in_path(ptr, 0, len, TRUE,
6224 		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
6225 		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
6226 		cap->count1,
6227 		isupper(cap->nchar) ? ACTION_SHOW_ALL :
6228 			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
6229 		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
6230 		(linenr_T)MAXLNUM);
6231 	    curwin->w_set_curswant = TRUE;
6232 	}
6233     }
6234     else
6235 #endif
6236 
6237     /*
6238      * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
6239      * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
6240      * "[/", "[*", "]/", "]*": go to Nth comment start/end.
6241      * "[m" or "]m" search for prev/next start of (Java) method.
6242      * "[M" or "]M" search for prev/next end of (Java) method.
6243      */
6244     if (  (cap->cmdchar == '['
6245 		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
6246 	    || (cap->cmdchar == ']'
6247 		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
6248     {
6249 	if (cap->nchar == '*')
6250 	    cap->nchar = '/';
6251 	new_pos.lnum = 0;
6252 	prev_pos.lnum = 0;
6253 	if (cap->nchar == 'm' || cap->nchar == 'M')
6254 	{
6255 	    if (cap->cmdchar == '[')
6256 		findc = '{';
6257 	    else
6258 		findc = '}';
6259 	    n = 9999;
6260 	}
6261 	else
6262 	{
6263 	    findc = cap->nchar;
6264 	    n = cap->count1;
6265 	}
6266 	for ( ; n > 0; --n)
6267 	{
6268 	    if ((pos = findmatchlimit(cap->oap, findc,
6269 		(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
6270 	    {
6271 		if (new_pos.lnum == 0)	/* nothing found */
6272 		{
6273 		    if (cap->nchar != 'm' && cap->nchar != 'M')
6274 			clearopbeep(cap->oap);
6275 		}
6276 		else
6277 		    pos = &new_pos;	/* use last one found */
6278 		break;
6279 	    }
6280 	    prev_pos = new_pos;
6281 	    curwin->w_cursor = *pos;
6282 	    new_pos = *pos;
6283 	}
6284 	curwin->w_cursor = old_pos;
6285 
6286 	/*
6287 	 * Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
6288 	 * brought us to the match for "[m" and "]M" when inside a method.
6289 	 * Try finding the '{' or '}' we want to be at.
6290 	 * Also repeat for the given count.
6291 	 */
6292 	if (cap->nchar == 'm' || cap->nchar == 'M')
6293 	{
6294 	    /* norm is TRUE for "]M" and "[m" */
6295 	    int	    norm = ((findc == '{') == (cap->nchar == 'm'));
6296 
6297 	    n = cap->count1;
6298 	    /* found a match: we were inside a method */
6299 	    if (prev_pos.lnum != 0)
6300 	    {
6301 		pos = &prev_pos;
6302 		curwin->w_cursor = prev_pos;
6303 		if (norm)
6304 		    --n;
6305 	    }
6306 	    else
6307 		pos = NULL;
6308 	    while (n > 0)
6309 	    {
6310 		for (;;)
6311 		{
6312 		    if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
6313 		    {
6314 			/* if not found anything, that's an error */
6315 			if (pos == NULL)
6316 			    clearopbeep(cap->oap);
6317 			n = 0;
6318 			break;
6319 		    }
6320 		    c = gchar_cursor();
6321 		    if (c == '{' || c == '}')
6322 		    {
6323 			/* Must have found end/start of class: use it.
6324 			 * Or found the place to be at. */
6325 			if ((c == findc && norm) || (n == 1 && !norm))
6326 			{
6327 			    new_pos = curwin->w_cursor;
6328 			    pos = &new_pos;
6329 			    n = 0;
6330 			}
6331 			/* if no match found at all, we started outside of the
6332 			 * class and we're inside now.  Just go on. */
6333 			else if (new_pos.lnum == 0)
6334 			{
6335 			    new_pos = curwin->w_cursor;
6336 			    pos = &new_pos;
6337 			}
6338 			/* found start/end of other method: go to match */
6339 			else if ((pos = findmatchlimit(cap->oap, findc,
6340 			    (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
6341 								  0)) == NULL)
6342 			    n = 0;
6343 			else
6344 			    curwin->w_cursor = *pos;
6345 			break;
6346 		    }
6347 		}
6348 		--n;
6349 	    }
6350 	    curwin->w_cursor = old_pos;
6351 	    if (pos == NULL && new_pos.lnum != 0)
6352 		clearopbeep(cap->oap);
6353 	}
6354 	if (pos != NULL)
6355 	{
6356 	    setpcmark();
6357 	    curwin->w_cursor = *pos;
6358 	    curwin->w_set_curswant = TRUE;
6359 #ifdef FEAT_FOLDING
6360 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped
6361 					       && cap->oap->op_type == OP_NOP)
6362 		foldOpenCursor();
6363 #endif
6364 	}
6365     }
6366 
6367     /*
6368      * "[[", "[]", "]]" and "][": move to start or end of function
6369      */
6370     else if (cap->nchar == '[' || cap->nchar == ']')
6371     {
6372 	if (cap->nchar == cap->cmdchar)		    /* "]]" or "[[" */
6373 	    flag = '{';
6374 	else
6375 	    flag = '}';		    /* "][" or "[]" */
6376 
6377 	curwin->w_set_curswant = TRUE;
6378 	/*
6379 	 * Imitate strange Vi behaviour: When using "]]" with an operator
6380 	 * we also stop at '}'.
6381 	 */
6382 	if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
6383 	      (cap->oap->op_type != OP_NOP
6384 				      && cap->arg == FORWARD && flag == '{')))
6385 	    clearopbeep(cap->oap);
6386 	else
6387 	{
6388 	    if (cap->oap->op_type == OP_NOP)
6389 		beginline(BL_WHITE | BL_FIX);
6390 #ifdef FEAT_FOLDING
6391 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6392 		foldOpenCursor();
6393 #endif
6394 	}
6395     }
6396 
6397     /*
6398      * "[p", "[P", "]P" and "]p": put with indent adjustment
6399      */
6400     else if (cap->nchar == 'p' || cap->nchar == 'P')
6401     {
6402 	if (!checkclearop(cap->oap))
6403 	{
6404 	    prep_redo_cmd(cap);
6405 	    do_put(cap->oap->regname,
6406 	      (cap->cmdchar == ']' && cap->nchar == 'p') ? FORWARD : BACKWARD,
6407 						  cap->count1, PUT_FIXINDENT);
6408 	}
6409     }
6410 
6411     /*
6412      * "['", "[`", "]'" and "]`": jump to next mark
6413      */
6414     else if (cap->nchar == '\'' || cap->nchar == '`')
6415     {
6416 	pos = &curwin->w_cursor;
6417 	for (n = cap->count1; n > 0; --n)
6418 	{
6419 	    prev_pos = *pos;
6420 	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
6421 							  cap->nchar == '\'');
6422 	    if (pos == NULL)
6423 		break;
6424 	}
6425 	if (pos == NULL)
6426 	    pos = &prev_pos;
6427 	nv_cursormark(cap, cap->nchar == '\'', pos);
6428     }
6429 
6430 #ifdef FEAT_MOUSE
6431     /*
6432      * [ or ] followed by a middle mouse click: put selected text with
6433      * indent adjustment.  Any other button just does as usual.
6434      */
6435     else if (cap->nchar >= K_LEFTMOUSE && cap->nchar <= K_RIGHTRELEASE)
6436     {
6437 	(void)do_mouse(cap->oap, cap->nchar,
6438 		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
6439 		       cap->count1, PUT_FIXINDENT);
6440     }
6441 #endif /* FEAT_MOUSE */
6442 
6443 #ifdef FEAT_FOLDING
6444     /*
6445      * "[z" and "]z": move to start or end of open fold.
6446      */
6447     else if (cap->nchar == 'z')
6448     {
6449 	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6450 							 cap->count1) == FAIL)
6451 	    clearopbeep(cap->oap);
6452     }
6453 #endif
6454 
6455 #ifdef FEAT_DIFF
6456     /*
6457      * "[c" and "]c": move to next or previous diff-change.
6458      */
6459     else if (cap->nchar == 'c')
6460     {
6461 	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
6462 							 cap->count1) == FAIL)
6463 	    clearopbeep(cap->oap);
6464     }
6465 #endif
6466 
6467 #ifdef FEAT_SPELL
6468     /*
6469      * "[s", "[S", "]s" and "]S": move to next spell error.
6470      */
6471     else if (cap->nchar == 's' || cap->nchar == 'S')
6472     {
6473 	setpcmark();
6474 	for (n = 0; n < cap->count1; ++n)
6475 	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6476 			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
6477 	    {
6478 		clearopbeep(cap->oap);
6479 		break;
6480 	    }
6481 # ifdef FEAT_FOLDING
6482 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6483 	    foldOpenCursor();
6484 # endif
6485     }
6486 #endif
6487 
6488     /* Not a valid cap->nchar. */
6489     else
6490 	clearopbeep(cap->oap);
6491 }
6492 
6493 /*
6494  * Handle Normal mode "%" command.
6495  */
6496     static void
6497 nv_percent(cap)
6498     cmdarg_T	*cap;
6499 {
6500     pos_T	*pos;
6501 #ifdef FEAT_FOLDING
6502     linenr_T	lnum = curwin->w_cursor.lnum;
6503 #endif
6504 
6505     cap->oap->inclusive = TRUE;
6506     if (cap->count0)	    /* {cnt}% : goto {cnt} percentage in file */
6507     {
6508 	if (cap->count0 > 100)
6509 	    clearopbeep(cap->oap);
6510 	else
6511 	{
6512 	    cap->oap->motion_type = MLINE;
6513 	    setpcmark();
6514 	    /* Round up, so CTRL-G will give same value.  Watch out for a
6515 	     * large line count, the line number must not go negative! */
6516 	    if (curbuf->b_ml.ml_line_count > 1000000)
6517 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99L)
6518 							 / 100L * cap->count0;
6519 	    else
6520 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
6521 						    cap->count0 + 99L) / 100L;
6522 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
6523 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6524 	    beginline(BL_SOL | BL_FIX);
6525 	}
6526     }
6527     else		    /* "%" : go to matching paren */
6528     {
6529 	cap->oap->motion_type = MCHAR;
6530 	cap->oap->use_reg_one = TRUE;
6531 	if ((pos = findmatch(cap->oap, NUL)) == NULL)
6532 	    clearopbeep(cap->oap);
6533 	else
6534 	{
6535 	    setpcmark();
6536 	    curwin->w_cursor = *pos;
6537 	    curwin->w_set_curswant = TRUE;
6538 #ifdef FEAT_VIRTUALEDIT
6539 	    curwin->w_cursor.coladd = 0;
6540 #endif
6541 #ifdef FEAT_VISUAL
6542 	    adjust_for_sel(cap);
6543 #endif
6544 	}
6545     }
6546 #ifdef FEAT_FOLDING
6547     if (cap->oap->op_type == OP_NOP
6548 	    && lnum != curwin->w_cursor.lnum
6549 	    && (fdo_flags & FDO_PERCENT)
6550 	    && KeyTyped)
6551 	foldOpenCursor();
6552 #endif
6553 }
6554 
6555 /*
6556  * Handle "(" and ")" commands.
6557  * cap->arg is BACKWARD for "(" and FORWARD for ")".
6558  */
6559     static void
6560 nv_brace(cap)
6561     cmdarg_T	*cap;
6562 {
6563     cap->oap->motion_type = MCHAR;
6564     cap->oap->use_reg_one = TRUE;
6565     /* The motion used to be inclusive for "(", but that is not what Vi does. */
6566     cap->oap->inclusive = FALSE;
6567     curwin->w_set_curswant = TRUE;
6568 
6569     if (findsent(cap->arg, cap->count1) == FAIL)
6570 	clearopbeep(cap->oap);
6571     else
6572     {
6573 	/* Don't leave the cursor on the NUL past end of line. */
6574 	adjust_cursor(cap->oap);
6575 #ifdef FEAT_VIRTUALEDIT
6576 	curwin->w_cursor.coladd = 0;
6577 #endif
6578 #ifdef FEAT_FOLDING
6579 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6580 	    foldOpenCursor();
6581 #endif
6582     }
6583 }
6584 
6585 /*
6586  * "m" command: Mark a position.
6587  */
6588     static void
6589 nv_mark(cap)
6590     cmdarg_T	*cap;
6591 {
6592     if (!checkclearop(cap->oap))
6593     {
6594 	if (setmark(cap->nchar) == FAIL)
6595 	    clearopbeep(cap->oap);
6596     }
6597 }
6598 
6599 /*
6600  * "{" and "}" commands.
6601  * cmd->arg is BACKWARD for "{" and FORWARD for "}".
6602  */
6603     static void
6604 nv_findpar(cap)
6605     cmdarg_T	*cap;
6606 {
6607     cap->oap->motion_type = MCHAR;
6608     cap->oap->inclusive = FALSE;
6609     cap->oap->use_reg_one = TRUE;
6610     curwin->w_set_curswant = TRUE;
6611     if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, FALSE))
6612 	clearopbeep(cap->oap);
6613     else
6614     {
6615 #ifdef FEAT_VIRTUALEDIT
6616 	curwin->w_cursor.coladd = 0;
6617 #endif
6618 #ifdef FEAT_FOLDING
6619 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6620 	    foldOpenCursor();
6621 #endif
6622     }
6623 }
6624 
6625 /*
6626  * "u" command: Undo or make lower case.
6627  */
6628     static void
6629 nv_undo(cap)
6630     cmdarg_T	*cap;
6631 {
6632     if (cap->oap->op_type == OP_LOWER
6633 #ifdef FEAT_VISUAL
6634 	    || VIsual_active
6635 #endif
6636 	    )
6637     {
6638 	/* translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu" */
6639 	cap->cmdchar = 'g';
6640 	cap->nchar = 'u';
6641 	nv_operator(cap);
6642     }
6643     else
6644 	nv_kundo(cap);
6645 }
6646 
6647 /*
6648  * <Undo> command.
6649  */
6650     static void
6651 nv_kundo(cap)
6652     cmdarg_T	*cap;
6653 {
6654     if (!checkclearopq(cap->oap))
6655     {
6656 	u_undo((int)cap->count1);
6657 	curwin->w_set_curswant = TRUE;
6658     }
6659 }
6660 
6661 /*
6662  * Handle the "r" command.
6663  */
6664     static void
6665 nv_replace(cap)
6666     cmdarg_T	*cap;
6667 {
6668     char_u	*ptr;
6669     int		had_ctrl_v;
6670     long	n;
6671 
6672     if (checkclearop(cap->oap))
6673 	return;
6674 
6675     /* get another character */
6676     if (cap->nchar == Ctrl_V)
6677     {
6678 	had_ctrl_v = Ctrl_V;
6679 	cap->nchar = get_literal();
6680 	/* Don't redo a multibyte character with CTRL-V. */
6681 	if (cap->nchar > DEL)
6682 	    had_ctrl_v = NUL;
6683     }
6684     else
6685 	had_ctrl_v = NUL;
6686 
6687     /* Abort if the character is a special key. */
6688     if (IS_SPECIAL(cap->nchar))
6689     {
6690 	clearopbeep(cap->oap);
6691 	return;
6692     }
6693 
6694 #ifdef FEAT_VISUAL
6695     /* Visual mode "r" */
6696     if (VIsual_active)
6697     {
6698 	nv_operator(cap);
6699 	return;
6700     }
6701 #endif
6702 
6703 #ifdef FEAT_VIRTUALEDIT
6704     /* Break tabs, etc. */
6705     if (virtual_active())
6706     {
6707 	if (u_save_cursor() == FAIL)
6708 	    return;
6709 	if (gchar_cursor() == NUL)
6710 	{
6711 	    /* Add extra space and put the cursor on the first one. */
6712 	    coladvance_force((colnr_T)(getviscol() + cap->count1));
6713 	    curwin->w_cursor.col -= cap->count1;
6714 	}
6715 	else if (gchar_cursor() == TAB)
6716 	    coladvance_force(getviscol());
6717     }
6718 #endif
6719 
6720     /* Abort if not enough characters to replace. */
6721     ptr = ml_get_cursor();
6722     if (STRLEN(ptr) < (unsigned)cap->count1
6723 #ifdef FEAT_MBYTE
6724 	    || (has_mbyte && mb_charlen(ptr) < cap->count1)
6725 #endif
6726 	    )
6727     {
6728 	clearopbeep(cap->oap);
6729 	return;
6730     }
6731 
6732     /*
6733      * Replacing with a TAB is done by edit() when it is complicated because
6734      * 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
6735      * Other characters are done below to avoid problems with things like
6736      * CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
6737      */
6738     if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
6739     {
6740 	stuffnumReadbuff(cap->count1);
6741 	stuffcharReadbuff('R');
6742 	stuffcharReadbuff('\t');
6743 	stuffcharReadbuff(ESC);
6744 	return;
6745     }
6746 
6747     /* save line for undo */
6748     if (u_save_cursor() == FAIL)
6749 	return;
6750 
6751     if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
6752     {
6753 	/*
6754 	 * Replace character(s) by a single newline.
6755 	 * Strange vi behaviour: Only one newline is inserted.
6756 	 * Delete the characters here.
6757 	 * Insert the newline with an insert command, takes care of
6758 	 * autoindent.	The insert command depends on being on the last
6759 	 * character of a line or not.
6760 	 */
6761 #ifdef FEAT_MBYTE
6762 	(void)del_chars(cap->count1, FALSE);	/* delete the characters */
6763 #else
6764 	(void)del_bytes(cap->count1, FALSE, FALSE); /* delete the characters */
6765 #endif
6766 	stuffcharReadbuff('\r');
6767 	stuffcharReadbuff(ESC);
6768 
6769 	/* Give 'r' to edit(), to get the redo command right. */
6770 	invoke_edit(cap, TRUE, 'r', FALSE);
6771     }
6772     else
6773     {
6774 	prep_redo(cap->oap->regname, cap->count1,
6775 				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);
6776 
6777 	curbuf->b_op_start = curwin->w_cursor;
6778 #ifdef FEAT_MBYTE
6779 	if (has_mbyte)
6780 	{
6781 	    int		old_State = State;
6782 
6783 	    if (cap->ncharC1 != 0)
6784 		AppendCharToRedobuff(cap->ncharC1);
6785 	    if (cap->ncharC2 != 0)
6786 		AppendCharToRedobuff(cap->ncharC2);
6787 
6788 	    /* This is slow, but it handles replacing a single-byte with a
6789 	     * multi-byte and the other way around.  Also handles adding
6790 	     * composing characters for utf-8. */
6791 	    for (n = cap->count1; n > 0; --n)
6792 	    {
6793 		State = REPLACE;
6794 		ins_char(cap->nchar);
6795 		State = old_State;
6796 		if (cap->ncharC1 != 0)
6797 		    ins_char(cap->ncharC1);
6798 		if (cap->ncharC2 != 0)
6799 		    ins_char(cap->ncharC2);
6800 	    }
6801 	}
6802 	else
6803 #endif
6804 	{
6805 	    /*
6806 	     * Replace the characters within one line.
6807 	     */
6808 	    for (n = cap->count1; n > 0; --n)
6809 	    {
6810 		/*
6811 		 * Get ptr again, because u_save and/or showmatch() will have
6812 		 * released the line.  At the same time we let know that the
6813 		 * line will be changed.
6814 		 */
6815 		ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
6816 		ptr[curwin->w_cursor.col] = cap->nchar;
6817 		if (p_sm && msg_silent == 0)
6818 		    showmatch(cap->nchar);
6819 		++curwin->w_cursor.col;
6820 	    }
6821 #ifdef FEAT_NETBEANS_INTG
6822 	    if (usingNetbeans)
6823 	    {
6824 		colnr_T start = (colnr_T)(curwin->w_cursor.col - cap->count1);
6825 
6826 		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
6827 							    (long)cap->count1);
6828 		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
6829 					       &ptr[start], (int)cap->count1);
6830 	    }
6831 #endif
6832 
6833 	    /* mark the buffer as changed and prepare for displaying */
6834 	    changed_bytes(curwin->w_cursor.lnum,
6835 			       (colnr_T)(curwin->w_cursor.col - cap->count1));
6836 	}
6837 	--curwin->w_cursor.col;	    /* cursor on the last replaced char */
6838 #ifdef FEAT_MBYTE
6839 	/* if the character on the left of the current cursor is a multi-byte
6840 	 * character, move two characters left */
6841 	if (has_mbyte)
6842 	    mb_adjust_cursor();
6843 #endif
6844 	curbuf->b_op_end = curwin->w_cursor;
6845 	curwin->w_set_curswant = TRUE;
6846 	set_last_insert(cap->nchar);
6847     }
6848 }
6849 
6850 #ifdef FEAT_VISUAL
6851 /*
6852  * 'o': Exchange start and end of Visual area.
6853  * 'O': same, but in block mode exchange left and right corners.
6854  */
6855     static void
6856 v_swap_corners(cmdchar)
6857     int		cmdchar;
6858 {
6859     pos_T	old_cursor;
6860     colnr_T	left, right;
6861 
6862     if (cmdchar == 'O' && VIsual_mode == Ctrl_V)
6863     {
6864 	old_cursor = curwin->w_cursor;
6865 	getvcols(curwin, &old_cursor, &VIsual, &left, &right);
6866 	curwin->w_cursor.lnum = VIsual.lnum;
6867 	coladvance(left);
6868 	VIsual = curwin->w_cursor;
6869 
6870 	curwin->w_cursor.lnum = old_cursor.lnum;
6871 	curwin->w_curswant = right;
6872 	/* 'selection "exclusive" and cursor at right-bottom corner: move it
6873 	 * right one column */
6874 	if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e')
6875 	    ++curwin->w_curswant;
6876 	coladvance(curwin->w_curswant);
6877 	if (curwin->w_cursor.col == old_cursor.col
6878 #ifdef FEAT_VIRTUALEDIT
6879 		&& (!virtual_active()
6880 		    || curwin->w_cursor.coladd == old_cursor.coladd)
6881 #endif
6882 		)
6883 	{
6884 	    curwin->w_cursor.lnum = VIsual.lnum;
6885 	    if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e')
6886 		++right;
6887 	    coladvance(right);
6888 	    VIsual = curwin->w_cursor;
6889 
6890 	    curwin->w_cursor.lnum = old_cursor.lnum;
6891 	    coladvance(left);
6892 	    curwin->w_curswant = left;
6893 	}
6894     }
6895     else
6896     {
6897 	old_cursor = curwin->w_cursor;
6898 	curwin->w_cursor = VIsual;
6899 	VIsual = old_cursor;
6900 	curwin->w_set_curswant = TRUE;
6901     }
6902 }
6903 #endif /* FEAT_VISUAL */
6904 
6905 /*
6906  * "R" (cap->arg is FALSE) and "gR" (cap->arg is TRUE).
6907  */
6908     static void
6909 nv_Replace(cap)
6910     cmdarg_T	    *cap;
6911 {
6912 #ifdef FEAT_VISUAL
6913     if (VIsual_active)		/* "R" is replace lines */
6914     {
6915 	cap->cmdchar = 'c';
6916 	cap->nchar = NUL;
6917 	VIsual_mode = 'V';
6918 	nv_operator(cap);
6919     }
6920     else
6921 #endif
6922 	if (!checkclearopq(cap->oap))
6923     {
6924 	if (!curbuf->b_p_ma)
6925 	    EMSG(_(e_modifiable));
6926 	else
6927 	{
6928 #ifdef FEAT_VIRTUALEDIT
6929 	    if (virtual_active())
6930 		coladvance(getviscol());
6931 #endif
6932 	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
6933 	}
6934     }
6935 }
6936 
6937 #ifdef FEAT_VREPLACE
6938 /*
6939  * "gr".
6940  */
6941     static void
6942 nv_vreplace(cap)
6943     cmdarg_T	*cap;
6944 {
6945 # ifdef FEAT_VISUAL
6946     if (VIsual_active)
6947     {
6948 	cap->cmdchar = 'r';
6949 	cap->nchar = cap->extra_char;
6950 	nv_replace(cap);	/* Do same as "r" in Visual mode for now */
6951     }
6952     else
6953 # endif
6954 	if (!checkclearopq(cap->oap))
6955     {
6956 	if (!curbuf->b_p_ma)
6957 	    EMSG(_(e_modifiable));
6958 	else
6959 	{
6960 	    if (cap->extra_char == Ctrl_V)	/* get another character */
6961 		cap->extra_char = get_literal();
6962 	    stuffcharReadbuff(cap->extra_char);
6963 	    stuffcharReadbuff(ESC);
6964 # ifdef FEAT_VIRTUALEDIT
6965 	    if (virtual_active())
6966 		coladvance(getviscol());
6967 # endif
6968 	    invoke_edit(cap, TRUE, 'v', FALSE);
6969 	}
6970     }
6971 }
6972 #endif
6973 
6974 /*
6975  * Swap case for "~" command, when it does not work like an operator.
6976  */
6977     static void
6978 n_swapchar(cap)
6979     cmdarg_T	*cap;
6980 {
6981     long	n;
6982     pos_T	startpos;
6983     int		did_change = 0;
6984 #ifdef FEAT_NETBEANS_INTG
6985     pos_T	pos;
6986     char_u	*ptr;
6987     int		count;
6988 #endif
6989 
6990     if (checkclearopq(cap->oap))
6991 	return;
6992 
6993     if (lineempty(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
6994     {
6995 	clearopbeep(cap->oap);
6996 	return;
6997     }
6998 
6999     prep_redo_cmd(cap);
7000 
7001     if (u_save_cursor() == FAIL)
7002 	return;
7003 
7004     startpos = curwin->w_cursor;
7005 #ifdef FEAT_NETBEANS_INTG
7006     pos = startpos;
7007 #endif
7008     for (n = cap->count1; n > 0; --n)
7009     {
7010 	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
7011 	inc_cursor();
7012 	if (gchar_cursor() == NUL)
7013 	{
7014 	    if (vim_strchr(p_ww, '~') != NULL
7015 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
7016 	    {
7017 #ifdef FEAT_NETBEANS_INTG
7018 		if (usingNetbeans)
7019 		{
7020 		    if (did_change)
7021 		    {
7022 			ptr = ml_get(pos.lnum);
7023 			count = (int)STRLEN(ptr) - pos.col;
7024 			netbeans_removed(curbuf, pos.lnum, pos.col,
7025 								 (long)count);
7026 			netbeans_inserted(curbuf, pos.lnum, pos.col,
7027 							&ptr[pos.col], count);
7028 		    }
7029 		    pos.col = 0;
7030 		    pos.lnum++;
7031 		}
7032 #endif
7033 		++curwin->w_cursor.lnum;
7034 		curwin->w_cursor.col = 0;
7035 		if (n > 1)
7036 		{
7037 		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
7038 			break;
7039 		    u_clearline();
7040 		}
7041 	    }
7042 	    else
7043 		break;
7044 	}
7045     }
7046 #ifdef FEAT_NETBEANS_INTG
7047     if (did_change && usingNetbeans)
7048     {
7049 	ptr = ml_get(pos.lnum);
7050 	count = curwin->w_cursor.col - pos.col;
7051 	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
7052 	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
7053     }
7054 #endif
7055 
7056 
7057     check_cursor();
7058     curwin->w_set_curswant = TRUE;
7059     if (did_change)
7060     {
7061 	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
7062 									  0L);
7063 	curbuf->b_op_start = startpos;
7064 	curbuf->b_op_end = curwin->w_cursor;
7065 	if (curbuf->b_op_end.col > 0)
7066 	    --curbuf->b_op_end.col;
7067     }
7068 }
7069 
7070 /*
7071  * Move cursor to mark.
7072  */
7073     static void
7074 nv_cursormark(cap, flag, pos)
7075     cmdarg_T	*cap;
7076     int		flag;
7077     pos_T	*pos;
7078 {
7079     if (check_mark(pos) == FAIL)
7080 	clearop(cap->oap);
7081     else
7082     {
7083 	if (cap->cmdchar == '\''
7084 		|| cap->cmdchar == '`'
7085 		|| cap->cmdchar == '['
7086 		|| cap->cmdchar == ']')
7087 	    setpcmark();
7088 	curwin->w_cursor = *pos;
7089 	if (flag)
7090 	    beginline(BL_WHITE | BL_FIX);
7091 	else
7092 	    check_cursor();
7093     }
7094     cap->oap->motion_type = flag ? MLINE : MCHAR;
7095     if (cap->cmdchar == '`')
7096 	cap->oap->use_reg_one = TRUE;
7097     cap->oap->inclusive = FALSE;		/* ignored if not MCHAR */
7098     curwin->w_set_curswant = TRUE;
7099 }
7100 
7101 #ifdef FEAT_VISUAL
7102 /*
7103  * Handle commands that are operators in Visual mode.
7104  */
7105     static void
7106 v_visop(cap)
7107     cmdarg_T	*cap;
7108 {
7109     static char_u trans[] = "YyDdCcxdXdAAIIrr";
7110 
7111     /* Uppercase means linewise, except in block mode, then "D" deletes till
7112      * the end of the line, and "C" replaces til EOL */
7113     if (isupper(cap->cmdchar))
7114     {
7115 	if (VIsual_mode != Ctrl_V)
7116 	    VIsual_mode = 'V';
7117 	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
7118 	    curwin->w_curswant = MAXCOL;
7119     }
7120     cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
7121     nv_operator(cap);
7122 }
7123 #endif
7124 
7125 /*
7126  * "s" and "S" commands.
7127  */
7128     static void
7129 nv_subst(cap)
7130     cmdarg_T	*cap;
7131 {
7132 #ifdef FEAT_VISUAL
7133     if (VIsual_active)	/* "vs" and "vS" are the same as "vc" */
7134     {
7135 	if (cap->cmdchar == 'S')
7136 	    VIsual_mode = 'V';
7137 	cap->cmdchar = 'c';
7138 	nv_operator(cap);
7139     }
7140     else
7141 #endif
7142 	nv_optrans(cap);
7143 }
7144 
7145 /*
7146  * Abbreviated commands.
7147  */
7148     static void
7149 nv_abbrev(cap)
7150     cmdarg_T	*cap;
7151 {
7152     if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
7153 	cap->cmdchar = 'x';		/* DEL key behaves like 'x' */
7154 
7155 #ifdef FEAT_VISUAL
7156     /* in Visual mode these commands are operators */
7157     if (VIsual_active)
7158 	v_visop(cap);
7159     else
7160 #endif
7161 	nv_optrans(cap);
7162 }
7163 
7164 /*
7165  * Translate a command into another command.
7166  */
7167     static void
7168 nv_optrans(cap)
7169     cmdarg_T	*cap;
7170 {
7171     static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
7172 			      (char_u *)"d$", (char_u *)"c$",
7173 			      (char_u *)"cl", (char_u *)"cc",
7174 			      (char_u *)"yy", (char_u *)":s\r"};
7175     static char_u *str = (char_u *)"xXDCsSY&";
7176 
7177     if (!checkclearopq(cap->oap))
7178     {
7179 	/* In Vi "2D" doesn't delete the next line.  Can't translate it
7180 	 * either, because "2." should also not use the count. */
7181 	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
7182 	{
7183 	    cap->oap->start = curwin->w_cursor;
7184 	    cap->oap->op_type = OP_DELETE;
7185 #ifdef FEAT_EVAL
7186 	    set_op_var(OP_DELETE);
7187 #endif
7188 	    cap->count1 = 1;
7189 	    nv_dollar(cap);
7190 	    finish_op = TRUE;
7191 	    ResetRedobuff();
7192 	    AppendCharToRedobuff('D');
7193 	}
7194 	else
7195 	{
7196 	    if (cap->count0)
7197 		stuffnumReadbuff(cap->count0);
7198 	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
7199 	}
7200     }
7201     cap->opcount = 0;
7202 }
7203 
7204 /*
7205  * "'" and "`" commands.  Also for "g'" and "g`".
7206  * cap->arg is TRUE for "'" and "g'".
7207  */
7208     static void
7209 nv_gomark(cap)
7210     cmdarg_T	*cap;
7211 {
7212     pos_T	*pos;
7213     int		c;
7214 #ifdef FEAT_FOLDING
7215     linenr_T	lnum = curwin->w_cursor.lnum;
7216     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7217 #endif
7218 
7219     if (cap->cmdchar == 'g')
7220 	c = cap->extra_char;
7221     else
7222 	c = cap->nchar;
7223     pos = getmark(c, (cap->oap->op_type == OP_NOP));
7224     if (pos == (pos_T *)-1)	    /* jumped to other file */
7225     {
7226 	if (cap->arg)
7227 	{
7228 	    check_cursor_lnum();
7229 	    beginline(BL_WHITE | BL_FIX);
7230 	}
7231 	else
7232 	    check_cursor();
7233     }
7234     else
7235 	nv_cursormark(cap, cap->arg, pos);
7236 
7237 #ifdef FEAT_VIRTUALEDIT
7238     /* May need to clear the coladd that a mark includes. */
7239     if (!virtual_active())
7240 	curwin->w_cursor.coladd = 0;
7241 #endif
7242 #ifdef FEAT_FOLDING
7243     if (cap->oap->op_type == OP_NOP
7244 	    && (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
7245 	    && (fdo_flags & FDO_MARK)
7246 	    && old_KeyTyped)
7247 	foldOpenCursor();
7248 #endif
7249 }
7250 
7251 /*
7252  * Handle CTRL-O, CTRL-I, "g;" and "g," commands.
7253  */
7254     static void
7255 nv_pcmark(cap)
7256     cmdarg_T	*cap;
7257 {
7258 #ifdef FEAT_JUMPLIST
7259     pos_T	*pos;
7260 # ifdef FEAT_FOLDING
7261     linenr_T	lnum = curwin->w_cursor.lnum;
7262     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7263 # endif
7264 
7265     if (!checkclearopq(cap->oap))
7266     {
7267 	if (cap->cmdchar == 'g')
7268 	    pos = movechangelist((int)cap->count1);
7269 	else
7270 	    pos = movemark((int)cap->count1);
7271 	if (pos == (pos_T *)-1)		/* jump to other file */
7272 	{
7273 	    curwin->w_set_curswant = TRUE;
7274 	    check_cursor();
7275 	}
7276 	else if (pos != NULL)		    /* can jump */
7277 	    nv_cursormark(cap, FALSE, pos);
7278 	else if (cap->cmdchar == 'g')
7279 	{
7280 	    if (curbuf->b_changelistlen == 0)
7281 		EMSG(_("E664: changelist is empty"));
7282 	    else if (cap->count1 < 0)
7283 		EMSG(_("E662: At start of changelist"));
7284 	    else
7285 		EMSG(_("E663: At end of changelist"));
7286 	}
7287 	else
7288 	    clearopbeep(cap->oap);
7289 # ifdef FEAT_FOLDING
7290 	if (cap->oap->op_type == OP_NOP
7291 		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
7292 		&& (fdo_flags & FDO_MARK)
7293 		&& old_KeyTyped)
7294 	    foldOpenCursor();
7295 # endif
7296     }
7297 #else
7298     clearopbeep(cap->oap);
7299 #endif
7300 }
7301 
7302 /*
7303  * Handle '"' command.
7304  */
7305     static void
7306 nv_regname(cap)
7307     cmdarg_T	*cap;
7308 {
7309     if (checkclearop(cap->oap))
7310 	return;
7311 #ifdef FEAT_EVAL
7312     if (cap->nchar == '=')
7313 	cap->nchar = get_expr_register();
7314 #endif
7315     if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
7316     {
7317 	cap->oap->regname = cap->nchar;
7318 	cap->opcount = cap->count0;	/* remember count before '"' */
7319 #ifdef FEAT_EVAL
7320 	set_reg_var(cap->oap->regname);
7321 #endif
7322     }
7323     else
7324 	clearopbeep(cap->oap);
7325 }
7326 
7327 #ifdef FEAT_VISUAL
7328 /*
7329  * Handle "v", "V" and "CTRL-V" commands.
7330  * Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
7331  * is TRUE.
7332  * Handle CTRL-Q just like CTRL-V.
7333  */
7334     static void
7335 nv_visual(cap)
7336     cmdarg_T	*cap;
7337 {
7338     if (cap->cmdchar == Ctrl_Q)
7339 	cap->cmdchar = Ctrl_V;
7340 
7341     /* 'v', 'V' and CTRL-V can be used while an operator is pending to make it
7342      * characterwise, linewise, or blockwise. */
7343     if (cap->oap->op_type != OP_NOP)
7344     {
7345 	cap->oap->motion_force = cap->cmdchar;
7346 	finish_op = FALSE;	/* operator doesn't finish now but later */
7347 	return;
7348     }
7349 
7350     VIsual_select = cap->arg;
7351     if (VIsual_active)	    /* change Visual mode */
7352     {
7353 	if (VIsual_mode == cap->cmdchar)    /* stop visual mode */
7354 	    end_visual_mode();
7355 	else				    /* toggle char/block mode */
7356 	{				    /*	   or char/line mode */
7357 	    VIsual_mode = cap->cmdchar;
7358 	    showmode();
7359 	}
7360 	redraw_curbuf_later(INVERTED);	    /* update the inversion */
7361     }
7362     else		    /* start Visual mode */
7363     {
7364 	check_visual_highlight();
7365 	if (cap->count0)		    /* use previously selected part */
7366 	{
7367 	    if (resel_VIsual_mode == NUL)   /* there is none */
7368 	    {
7369 		beep_flush();
7370 		return;
7371 	    }
7372 	    VIsual = curwin->w_cursor;
7373 
7374 	    VIsual_active = TRUE;
7375 	    VIsual_reselect = TRUE;
7376 	    if (!cap->arg)
7377 		/* start Select mode when 'selectmode' contains "cmd" */
7378 		may_start_select('c');
7379 #ifdef FEAT_MOUSE
7380 	    setmouse();
7381 #endif
7382 	    if (p_smd && msg_silent == 0)
7383 		redraw_cmdline = TRUE;	    /* show visual mode later */
7384 	    /*
7385 	     * For V and ^V, we multiply the number of lines even if there
7386 	     * was only one -- webb
7387 	     */
7388 	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
7389 	    {
7390 		curwin->w_cursor.lnum +=
7391 				    resel_VIsual_line_count * cap->count0 - 1;
7392 		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
7393 		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
7394 	    }
7395 	    VIsual_mode = resel_VIsual_mode;
7396 	    if (VIsual_mode == 'v')
7397 	    {
7398 		if (resel_VIsual_line_count <= 1)
7399 		    curwin->w_cursor.col += resel_VIsual_col * cap->count0 - 1;
7400 		else
7401 		    curwin->w_cursor.col = resel_VIsual_col;
7402 		check_cursor_col();
7403 	    }
7404 	    if (resel_VIsual_col == MAXCOL)
7405 	    {
7406 		curwin->w_curswant = MAXCOL;
7407 		coladvance((colnr_T)MAXCOL);
7408 	    }
7409 	    else if (VIsual_mode == Ctrl_V)
7410 	    {
7411 		validate_virtcol();
7412 		curwin->w_curswant = curwin->w_virtcol
7413 					 + resel_VIsual_col * cap->count0 - 1;
7414 		coladvance(curwin->w_curswant);
7415 	    }
7416 	    else
7417 		curwin->w_set_curswant = TRUE;
7418 	    redraw_curbuf_later(INVERTED);	/* show the inversion */
7419 	}
7420 	else
7421 	{
7422 	    if (!cap->arg)
7423 		/* start Select mode when 'selectmode' contains "cmd" */
7424 		may_start_select('c');
7425 	    n_start_visual_mode(cap->cmdchar);
7426 	}
7427     }
7428 }
7429 
7430 /*
7431  * Start selection for Shift-movement keys.
7432  */
7433     void
7434 start_selection()
7435 {
7436     /* if 'selectmode' contains "key", start Select mode */
7437     may_start_select('k');
7438     n_start_visual_mode('v');
7439 }
7440 
7441 /*
7442  * Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
7443  */
7444     void
7445 may_start_select(c)
7446     int		c;
7447 {
7448     VIsual_select = (stuff_empty() && typebuf_typed()
7449 		    && (vim_strchr(p_slm, c) != NULL));
7450 }
7451 
7452 /*
7453  * Start Visual mode "c".
7454  * Should set VIsual_select before calling this.
7455  */
7456     static void
7457 n_start_visual_mode(c)
7458     int		c;
7459 {
7460     VIsual_mode = c;
7461     VIsual_active = TRUE;
7462     VIsual_reselect = TRUE;
7463 #ifdef FEAT_VIRTUALEDIT
7464     /* Corner case: the 0 position in a tab may change when going into
7465      * virtualedit.  Recalculate curwin->w_cursor to avoid bad hilighting.
7466      */
7467     if (c == Ctrl_V && (ve_flags & VE_BLOCK) && gchar_cursor() == TAB)
7468 	coladvance(curwin->w_virtcol);
7469 #endif
7470     VIsual = curwin->w_cursor;
7471 
7472 #ifdef FEAT_FOLDING
7473     foldAdjustVisual();
7474 #endif
7475 
7476 #ifdef FEAT_MOUSE
7477     setmouse();
7478 #endif
7479     if (p_smd && msg_silent == 0)
7480 	redraw_cmdline = TRUE;	/* show visual mode later */
7481 #ifdef FEAT_CLIPBOARD
7482     /* Make sure the clipboard gets updated.  Needed because start and
7483      * end may still be the same, and the selection needs to be owned */
7484     clip_star.vmode = NUL;
7485 #endif
7486 
7487     /* Only need to redraw this line, unless still need to redraw an old
7488      * Visual area (when 'lazyredraw' is set). */
7489     if (curwin->w_redr_type < INVERTED)
7490     {
7491 	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
7492 	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
7493     }
7494 }
7495 
7496 #endif /* FEAT_VISUAL */
7497 
7498 /*
7499  * CTRL-W: Window commands
7500  */
7501     static void
7502 nv_window(cap)
7503     cmdarg_T	*cap;
7504 {
7505 #ifdef FEAT_WINDOWS
7506     if (!checkclearop(cap->oap))
7507 	do_window(cap->nchar, cap->count0, NUL); /* everything is in window.c */
7508 #else
7509     (void)checkclearop(cap->oap);
7510 #endif
7511 }
7512 
7513 /*
7514  * CTRL-Z: Suspend
7515  */
7516     static void
7517 nv_suspend(cap)
7518     cmdarg_T	*cap;
7519 {
7520     clearop(cap->oap);
7521 #ifdef FEAT_VISUAL
7522     if (VIsual_active)
7523 	end_visual_mode();		/* stop Visual mode */
7524 #endif
7525     do_cmdline_cmd((char_u *)"st");
7526 }
7527 
7528 /*
7529  * Commands starting with "g".
7530  */
7531     static void
7532 nv_g_cmd(cap)
7533     cmdarg_T	*cap;
7534 {
7535     oparg_T	*oap = cap->oap;
7536 #ifdef FEAT_VISUAL
7537     pos_T	tpos;
7538 #endif
7539     int		i;
7540     int		flag = FALSE;
7541 
7542     switch (cap->nchar)
7543     {
7544 #ifdef MEM_PROFILE
7545     /*
7546      * "g^A": dump log of used memory.
7547      */
7548     case Ctrl_A:
7549 	vim_mem_profile_dump();
7550 	break;
7551 #endif
7552 
7553 #ifdef FEAT_VREPLACE
7554     /*
7555      * "gR": Enter virtual replace mode.
7556      */
7557     case 'R':
7558 	cap->arg = TRUE;
7559 	nv_Replace(cap);
7560 	break;
7561 
7562     case 'r':
7563 	nv_vreplace(cap);
7564 	break;
7565 #endif
7566 
7567     case '&':
7568 	do_cmdline_cmd((char_u *)"%s//~/&");
7569 	break;
7570 
7571 #ifdef FEAT_VISUAL
7572     /*
7573      * "gv": Reselect the previous Visual area.  If Visual already active,
7574      *	     exchange previous and current Visual area.
7575      */
7576     case 'v':
7577 	if (checkclearop(oap))
7578 	    break;
7579 
7580 	if (	   curbuf->b_visual.vi_start.lnum == 0
7581 		|| curbuf->b_visual.vi_start.lnum > curbuf->b_ml.ml_line_count
7582 		|| curbuf->b_visual.vi_end.lnum == 0)
7583 	    beep_flush();
7584 	else
7585 	{
7586 	    /* set w_cursor to the start of the Visual area, tpos to the end */
7587 	    if (VIsual_active)
7588 	    {
7589 		i = VIsual_mode;
7590 		VIsual_mode = curbuf->b_visual.vi_mode;
7591 		curbuf->b_visual.vi_mode = i;
7592 # ifdef FEAT_EVAL
7593 		curbuf->b_visual_mode_eval = i;
7594 # endif
7595 		i = curwin->w_curswant;
7596 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7597 		curbuf->b_visual.vi_curswant = i;
7598 
7599 		tpos = curbuf->b_visual.vi_end;
7600 		curbuf->b_visual.vi_end = curwin->w_cursor;
7601 		curwin->w_cursor = curbuf->b_visual.vi_start;
7602 		curbuf->b_visual.vi_start = VIsual;
7603 	    }
7604 	    else
7605 	    {
7606 		VIsual_mode = curbuf->b_visual.vi_mode;
7607 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7608 		tpos = curbuf->b_visual.vi_end;
7609 		curwin->w_cursor = curbuf->b_visual.vi_start;
7610 	    }
7611 
7612 	    VIsual_active = TRUE;
7613 	    VIsual_reselect = TRUE;
7614 
7615 	    /* Set Visual to the start and w_cursor to the end of the Visual
7616 	     * area.  Make sure they are on an existing character. */
7617 	    check_cursor();
7618 	    VIsual = curwin->w_cursor;
7619 	    curwin->w_cursor = tpos;
7620 	    check_cursor();
7621 	    update_topline();
7622 	    /*
7623 	     * When called from normal "g" command: start Select mode when
7624 	     * 'selectmode' contains "cmd".  When called for K_SELECT, always
7625 	     * start Select mode.
7626 	     */
7627 	    if (cap->arg)
7628 		VIsual_select = TRUE;
7629 	    else
7630 		may_start_select('c');
7631 #ifdef FEAT_MOUSE
7632 	    setmouse();
7633 #endif
7634 #ifdef FEAT_CLIPBOARD
7635 	    /* Make sure the clipboard gets updated.  Needed because start and
7636 	     * end are still the same, and the selection needs to be owned */
7637 	    clip_star.vmode = NUL;
7638 #endif
7639 	    redraw_curbuf_later(INVERTED);
7640 	    showmode();
7641 	}
7642 	break;
7643     /*
7644      * "gV": Don't reselect the previous Visual area after a Select mode
7645      *	     mapping of menu.
7646      */
7647     case 'V':
7648 	VIsual_reselect = FALSE;
7649 	break;
7650 
7651     /*
7652      * "gh":  start Select mode.
7653      * "gH":  start Select line mode.
7654      * "g^H": start Select block mode.
7655      */
7656     case K_BS:
7657 	cap->nchar = Ctrl_H;
7658 	/* FALLTHROUGH */
7659     case 'h':
7660     case 'H':
7661     case Ctrl_H:
7662 # ifdef EBCDIC
7663 	/* EBCDIC: 'v'-'h' != '^v'-'^h' */
7664 	if (cap->nchar == Ctrl_H)
7665 	    cap->cmdchar = Ctrl_V;
7666 	else
7667 # endif
7668 	cap->cmdchar = cap->nchar + ('v' - 'h');
7669 	cap->arg = TRUE;
7670 	nv_visual(cap);
7671 	break;
7672 #endif /* FEAT_VISUAL */
7673 
7674     /*
7675      * "gj" and "gk" two new funny movement keys -- up and down
7676      * movement based on *screen* line rather than *file* line.
7677      */
7678     case 'j':
7679     case K_DOWN:
7680 	/* with 'nowrap' it works just like the normal "j" command; also when
7681 	 * in a closed fold */
7682 	if (!curwin->w_p_wrap
7683 #ifdef FEAT_FOLDING
7684 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7685 #endif
7686 		)
7687 	{
7688 	    oap->motion_type = MLINE;
7689 	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
7690 	}
7691 	else
7692 	    i = nv_screengo(oap, FORWARD, cap->count1);
7693 	if (i == FAIL)
7694 	    clearopbeep(oap);
7695 	break;
7696 
7697     case 'k':
7698     case K_UP:
7699 	/* with 'nowrap' it works just like the normal "k" command; also when
7700 	 * in a closed fold */
7701 	if (!curwin->w_p_wrap
7702 #ifdef FEAT_FOLDING
7703 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7704 #endif
7705 	   )
7706 	{
7707 	    oap->motion_type = MLINE;
7708 	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
7709 	}
7710 	else
7711 	    i = nv_screengo(oap, BACKWARD, cap->count1);
7712 	if (i == FAIL)
7713 	    clearopbeep(oap);
7714 	break;
7715 
7716     /*
7717      * "gJ": join two lines without inserting a space.
7718      */
7719     case 'J':
7720 	nv_join(cap);
7721 	break;
7722 
7723     /*
7724      * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
7725      * "gm": middle of "g0" and "g$".
7726      */
7727     case '^':
7728 	flag = TRUE;
7729 	/* FALLTHROUGH */
7730 
7731     case '0':
7732     case 'm':
7733     case K_HOME:
7734     case K_KHOME:
7735 	oap->motion_type = MCHAR;
7736 	oap->inclusive = FALSE;
7737 	if (curwin->w_p_wrap
7738 #ifdef FEAT_VERTSPLIT
7739 		&& curwin->w_width != 0
7740 #endif
7741 		)
7742 	{
7743 	    int		width1 = W_WIDTH(curwin) - curwin_col_off();
7744 	    int		width2 = width1 + curwin_col_off2();
7745 
7746 	    validate_virtcol();
7747 	    i = 0;
7748 	    if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
7749 		i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
7750 	}
7751 	else
7752 	    i = curwin->w_leftcol;
7753 	/* Go to the middle of the screen line.  When 'number' is on and lines
7754 	 * are wrapping the middle can be more to the left.*/
7755 	if (cap->nchar == 'm')
7756 	    i += (W_WIDTH(curwin) - curwin_col_off()
7757 		    + ((curwin->w_p_wrap && i > 0)
7758 			? curwin_col_off2() : 0)) / 2;
7759 	coladvance((colnr_T)i);
7760 	if (flag)
7761 	{
7762 	    do
7763 		i = gchar_cursor();
7764 	    while (vim_iswhite(i) && oneright() == OK);
7765 	}
7766 	curwin->w_set_curswant = TRUE;
7767 	break;
7768 
7769     case '_':
7770 	/* "g_": to the last non-blank character in the line or <count> lines
7771 	 * downward. */
7772 	cap->oap->motion_type = MCHAR;
7773 	cap->oap->inclusive = TRUE;
7774 	curwin->w_curswant = MAXCOL;
7775 	if (cursor_down((long)(cap->count1 - 1),
7776 					 cap->oap->op_type == OP_NOP) == FAIL)
7777 	    clearopbeep(cap->oap);
7778 	else
7779 	{
7780 	    char_u  *ptr = ml_get_curline();
7781 
7782 	    /* In Visual mode we may end up after the line. */
7783 	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
7784 		--curwin->w_cursor.col;
7785 
7786 	    /* Decrease the cursor column until it's on a non-blank. */
7787 	    while (curwin->w_cursor.col > 0
7788 				    && vim_iswhite(ptr[curwin->w_cursor.col]))
7789 		--curwin->w_cursor.col;
7790 	    curwin->w_set_curswant = TRUE;
7791 	}
7792 	break;
7793 
7794     case '$':
7795     case K_END:
7796     case K_KEND:
7797 	{
7798 	    int col_off = curwin_col_off();
7799 
7800 	    oap->motion_type = MCHAR;
7801 	    oap->inclusive = TRUE;
7802 	    if (curwin->w_p_wrap
7803 #ifdef FEAT_VERTSPLIT
7804 		    && curwin->w_width != 0
7805 #endif
7806 	       )
7807 	    {
7808 		curwin->w_curswant = MAXCOL;    /* so we stay at the end */
7809 		if (cap->count1 == 1)
7810 		{
7811 		    int		width1 = W_WIDTH(curwin) - col_off;
7812 		    int		width2 = width1 + curwin_col_off2();
7813 
7814 		    validate_virtcol();
7815 		    i = width1 - 1;
7816 		    if (curwin->w_virtcol >= (colnr_T)width1)
7817 			i += ((curwin->w_virtcol - width1) / width2 + 1)
7818 								     * width2;
7819 		    coladvance((colnr_T)i);
7820 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
7821 		    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
7822 		    {
7823 			/*
7824 			 * Check for landing on a character that got split at
7825 			 * the end of the line.  We do not want to advance to
7826 			 * the next screen line.
7827 			 */
7828 			validate_virtcol();
7829 			if (curwin->w_virtcol > (colnr_T)i)
7830 			    --curwin->w_cursor.col;
7831 		    }
7832 #endif
7833 		}
7834 		else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
7835 		    clearopbeep(oap);
7836 	    }
7837 	    else
7838 	    {
7839 		i = curwin->w_leftcol + W_WIDTH(curwin) - col_off - 1;
7840 		coladvance((colnr_T)i);
7841 
7842 		/* Make sure we stick in this column. */
7843 		validate_virtcol();
7844 		curwin->w_curswant = curwin->w_virtcol;
7845 		curwin->w_set_curswant = FALSE;
7846 	    }
7847 	}
7848 	break;
7849 
7850     /*
7851      * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
7852      */
7853     case '*':
7854     case '#':
7855 #if POUND != '#'
7856     case POUND:		/* pound sign (sometimes equal to '#') */
7857 #endif
7858     case Ctrl_RSB:		/* :tag or :tselect for current identifier */
7859     case ']':			/* :tselect for current identifier */
7860 	nv_ident(cap);
7861 	break;
7862 
7863     /*
7864      * ge and gE: go back to end of word
7865      */
7866     case 'e':
7867     case 'E':
7868 	oap->motion_type = MCHAR;
7869 	curwin->w_set_curswant = TRUE;
7870 	oap->inclusive = TRUE;
7871 	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
7872 	    clearopbeep(oap);
7873 	break;
7874 
7875     /*
7876      * "g CTRL-G": display info about cursor position
7877      */
7878     case Ctrl_G:
7879 	cursor_pos_info();
7880 	break;
7881 
7882     /*
7883      * "gi": start Insert at the last position.
7884      */
7885     case 'i':
7886 	if (curbuf->b_last_insert.lnum != 0)
7887 	{
7888 	    curwin->w_cursor = curbuf->b_last_insert;
7889 	    check_cursor_lnum();
7890 	    i = (int)STRLEN(ml_get_curline());
7891 	    if (curwin->w_cursor.col > (colnr_T)i)
7892 	    {
7893 #ifdef FEAT_VIRTUALEDIT
7894 		if (virtual_active())
7895 		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
7896 #endif
7897 		curwin->w_cursor.col = i;
7898 	    }
7899 	}
7900 	cap->cmdchar = 'i';
7901 	nv_edit(cap);
7902 	break;
7903 
7904     /*
7905      * "gI": Start insert in column 1.
7906      */
7907     case 'I':
7908 	beginline(0);
7909 	if (!checkclearopq(oap))
7910 	    invoke_edit(cap, FALSE, 'g', FALSE);
7911 	break;
7912 
7913 #ifdef FEAT_SEARCHPATH
7914     /*
7915      * "gf": goto file, edit file under cursor
7916      * "]f" and "[f": can also be used.
7917      */
7918     case 'f':
7919     case 'F':
7920 	nv_gotofile(cap);
7921 	break;
7922 #endif
7923 
7924 	/* "g'm" and "g`m": jump to mark without setting pcmark */
7925     case '\'':
7926 	cap->arg = TRUE;
7927 	/*FALLTHROUGH*/
7928     case '`':
7929 	nv_gomark(cap);
7930 	break;
7931 
7932     /*
7933      * "gs": Goto sleep.
7934      */
7935     case 's':
7936 	do_sleep(cap->count1 * 1000L);
7937 	break;
7938 
7939     /*
7940      * "ga": Display the ascii value of the character under the
7941      * cursor.	It is displayed in decimal, hex, and octal. -- webb
7942      */
7943     case 'a':
7944 	do_ascii(NULL);
7945 	break;
7946 
7947 #ifdef FEAT_MBYTE
7948     /*
7949      * "g8": Display the bytes used for the UTF-8 character under the
7950      * cursor.	It is displayed in hex.
7951      * "8g8" finds illegal byte sequence.
7952      */
7953     case '8':
7954 	if (cap->count0 == 8)
7955 	    utf_find_illegal();
7956 	else
7957 	    show_utf8();
7958 	break;
7959 #endif
7960 
7961     case '<':
7962 	show_sb_text();
7963 	break;
7964 
7965     /*
7966      * "gg": Goto the first line in file.  With a count it goes to
7967      * that line number like for "G". -- webb
7968      */
7969     case 'g':
7970 	cap->arg = FALSE;
7971 	nv_goto(cap);
7972 	break;
7973 
7974     /*
7975      *	 Two-character operators:
7976      *	 "gq"	    Format text
7977      *	 "gw"	    Format text and keep cursor position
7978      *	 "g~"	    Toggle the case of the text.
7979      *	 "gu"	    Change text to lower case.
7980      *	 "gU"	    Change text to upper case.
7981      *   "g?"	    rot13 encoding
7982      *   "g@"	    call 'operatorfunc'
7983      */
7984     case 'q':
7985     case 'w':
7986 	oap->cursor_start = curwin->w_cursor;
7987 	/*FALLTHROUGH*/
7988     case '~':
7989     case 'u':
7990     case 'U':
7991     case '?':
7992     case '@':
7993 	nv_operator(cap);
7994 	break;
7995 
7996     /*
7997      * "gd": Find first occurrence of pattern under the cursor in the
7998      *	 current function
7999      * "gD": idem, but in the current file.
8000      */
8001     case 'd':
8002     case 'D':
8003 	nv_gd(oap, cap->nchar, (int)cap->count0);
8004 	break;
8005 
8006 #ifdef FEAT_MOUSE
8007     /*
8008      * g<*Mouse> : <C-*mouse>
8009      */
8010     case K_MIDDLEMOUSE:
8011     case K_MIDDLEDRAG:
8012     case K_MIDDLERELEASE:
8013     case K_LEFTMOUSE:
8014     case K_LEFTDRAG:
8015     case K_LEFTRELEASE:
8016     case K_RIGHTMOUSE:
8017     case K_RIGHTDRAG:
8018     case K_RIGHTRELEASE:
8019     case K_X1MOUSE:
8020     case K_X1DRAG:
8021     case K_X1RELEASE:
8022     case K_X2MOUSE:
8023     case K_X2DRAG:
8024     case K_X2RELEASE:
8025 	mod_mask = MOD_MASK_CTRL;
8026 	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
8027 	break;
8028 #endif
8029 
8030     case K_IGNORE:
8031 	break;
8032 
8033     /*
8034      * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
8035      */
8036     case 'p':
8037     case 'P':
8038 	nv_put(cap);
8039 	break;
8040 
8041 #ifdef FEAT_BYTEOFF
8042     /* "go": goto byte count from start of buffer */
8043     case 'o':
8044 	goto_byte(cap->count0);
8045 	break;
8046 #endif
8047 
8048     /* "gQ": improved Ex mode */
8049     case 'Q':
8050 	if (text_locked())
8051 	{
8052 	    clearopbeep(cap->oap);
8053 	    text_locked_msg();
8054 	    break;
8055 	}
8056 
8057 	if (!checkclearopq(oap))
8058 	    do_exmode(TRUE);
8059 	break;
8060 
8061 #ifdef FEAT_JUMPLIST
8062     case ',':
8063 	nv_pcmark(cap);
8064 	break;
8065 
8066     case ';':
8067 	cap->count1 = -cap->count1;
8068 	nv_pcmark(cap);
8069 	break;
8070 #endif
8071 
8072 #ifdef FEAT_WINDOWS
8073     case 't':
8074 	goto_tabpage((int)cap->count0);
8075 	break;
8076     case 'T':
8077 	goto_tabpage(-(int)cap->count1);
8078 	break;
8079 #endif
8080 
8081     case '+':
8082     case '-': /* "g+" and "g-": undo or redo along the timeline */
8083 	if (!checkclearopq(oap))
8084 	    undo_time(cap->nchar == '-' ? -cap->count1 : cap->count1,
8085 								FALSE, FALSE);
8086 	break;
8087 
8088     default:
8089 	clearopbeep(oap);
8090 	break;
8091     }
8092 }
8093 
8094 /*
8095  * Handle "o" and "O" commands.
8096  */
8097     static void
8098 n_opencmd(cap)
8099     cmdarg_T	*cap;
8100 {
8101     if (!checkclearopq(cap->oap))
8102     {
8103 #ifdef FEAT_FOLDING
8104 	if (cap->cmdchar == 'O')
8105 	    /* Open above the first line of a folded sequence of lines */
8106 	    (void)hasFolding(curwin->w_cursor.lnum,
8107 						&curwin->w_cursor.lnum, NULL);
8108 	else
8109 	    /* Open below the last line of a folded sequence of lines */
8110 	    (void)hasFolding(curwin->w_cursor.lnum,
8111 						NULL, &curwin->w_cursor.lnum);
8112 #endif
8113 	if (u_save((linenr_T)(curwin->w_cursor.lnum -
8114 					       (cap->cmdchar == 'O' ? 1 : 0)),
8115 		   (linenr_T)(curwin->w_cursor.lnum +
8116 					       (cap->cmdchar == 'o' ? 1 : 0))
8117 		       ) == OK
8118 		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
8119 #ifdef FEAT_COMMENTS
8120 		    has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM :
8121 #endif
8122 		    0, 0))
8123 	{
8124 	    /* When '#' is in 'cpoptions' ignore the count. */
8125 	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
8126 		cap->count1 = 1;
8127 	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
8128 	}
8129     }
8130 }
8131 
8132 /*
8133  * "." command: redo last change.
8134  */
8135     static void
8136 nv_dot(cap)
8137     cmdarg_T	*cap;
8138 {
8139     if (!checkclearopq(cap->oap))
8140     {
8141 	/*
8142 	 * If "restart_edit" is TRUE, the last but one command is repeated
8143 	 * instead of the last command (inserting text). This is used for
8144 	 * CTRL-O <.> in insert mode.
8145 	 */
8146 	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
8147 	    clearopbeep(cap->oap);
8148     }
8149 }
8150 
8151 /*
8152  * CTRL-R: undo undo
8153  */
8154     static void
8155 nv_redo(cap)
8156     cmdarg_T	*cap;
8157 {
8158     if (!checkclearopq(cap->oap))
8159     {
8160 	u_redo((int)cap->count1);
8161 	curwin->w_set_curswant = TRUE;
8162     }
8163 }
8164 
8165 /*
8166  * Handle "U" command.
8167  */
8168     static void
8169 nv_Undo(cap)
8170     cmdarg_T	*cap;
8171 {
8172     /* In Visual mode and typing "gUU" triggers an operator */
8173     if (cap->oap->op_type == OP_UPPER
8174 #ifdef FEAT_VISUAL
8175 	    || VIsual_active
8176 #endif
8177 	    )
8178     {
8179 	/* translate "gUU" to "gUgU" */
8180 	cap->cmdchar = 'g';
8181 	cap->nchar = 'U';
8182 	nv_operator(cap);
8183     }
8184     else if (!checkclearopq(cap->oap))
8185     {
8186 	u_undoline();
8187 	curwin->w_set_curswant = TRUE;
8188     }
8189 }
8190 
8191 /*
8192  * '~' command: If tilde is not an operator and Visual is off: swap case of a
8193  * single character.
8194  */
8195     static void
8196 nv_tilde(cap)
8197     cmdarg_T	*cap;
8198 {
8199     if (!p_to
8200 #ifdef FEAT_VISUAL
8201 	    && !VIsual_active
8202 #endif
8203 	    && cap->oap->op_type != OP_TILDE)
8204 	n_swapchar(cap);
8205     else
8206 	nv_operator(cap);
8207 }
8208 
8209 /*
8210  * Handle an operator command.
8211  * The actual work is done by do_pending_operator().
8212  */
8213     static void
8214 nv_operator(cap)
8215     cmdarg_T	*cap;
8216 {
8217     int	    op_type;
8218 
8219     op_type = get_op_type(cap->cmdchar, cap->nchar);
8220 
8221     if (op_type == cap->oap->op_type)	    /* double operator works on lines */
8222 	nv_lineop(cap);
8223     else if (!checkclearop(cap->oap))
8224     {
8225 	cap->oap->start = curwin->w_cursor;
8226 	cap->oap->op_type = op_type;
8227 #ifdef FEAT_EVAL
8228 	set_op_var(op_type);
8229 #endif
8230     }
8231 }
8232 
8233 #ifdef FEAT_EVAL
8234 /*
8235  * Set v:operator to the characters for "optype".
8236  */
8237     static void
8238 set_op_var(optype)
8239     int optype;
8240 {
8241     char_u	opchars[3];
8242 
8243     if (optype == OP_NOP)
8244 	set_vim_var_string(VV_OP, NULL, 0);
8245     else
8246     {
8247 	opchars[0] = get_op_char(optype);
8248 	opchars[1] = get_extra_op_char(optype);
8249 	opchars[2] = NUL;
8250 	set_vim_var_string(VV_OP, opchars, -1);
8251     }
8252 }
8253 #endif
8254 
8255 /*
8256  * Handle linewise operator "dd", "yy", etc.
8257  *
8258  * "_" is is a strange motion command that helps make operators more logical.
8259  * It is actually implemented, but not documented in the real Vi.  This motion
8260  * command actually refers to "the current line".  Commands like "dd" and "yy"
8261  * are really an alternate form of "d_" and "y_".  It does accept a count, so
8262  * "d3_" works to delete 3 lines.
8263  */
8264     static void
8265 nv_lineop(cap)
8266     cmdarg_T	*cap;
8267 {
8268     cap->oap->motion_type = MLINE;
8269     if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
8270 	clearopbeep(cap->oap);
8271     else if (  cap->oap->op_type == OP_DELETE
8272 	    || cap->oap->op_type == OP_LSHIFT
8273 	    || cap->oap->op_type == OP_RSHIFT)
8274 	beginline(BL_SOL | BL_FIX);
8275     else if (cap->oap->op_type != OP_YANK)	/* 'Y' does not move cursor */
8276 	beginline(BL_WHITE | BL_FIX);
8277 }
8278 
8279 /*
8280  * <Home> command.
8281  */
8282     static void
8283 nv_home(cap)
8284     cmdarg_T	*cap;
8285 {
8286     /* CTRL-HOME is like "gg" */
8287     if (mod_mask & MOD_MASK_CTRL)
8288 	nv_goto(cap);
8289     else
8290     {
8291 	cap->count0 = 1;
8292 	nv_pipe(cap);
8293     }
8294     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8295 			       one-character line). */
8296 }
8297 
8298 /*
8299  * "|" command.
8300  */
8301     static void
8302 nv_pipe(cap)
8303     cmdarg_T *cap;
8304 {
8305     cap->oap->motion_type = MCHAR;
8306     cap->oap->inclusive = FALSE;
8307     beginline(0);
8308     if (cap->count0 > 0)
8309     {
8310 	coladvance((colnr_T)(cap->count0 - 1));
8311 	curwin->w_curswant = (colnr_T)(cap->count0 - 1);
8312     }
8313     else
8314 	curwin->w_curswant = 0;
8315     /* keep curswant at the column where we wanted to go, not where
8316        we ended; differs if line is too short */
8317     curwin->w_set_curswant = FALSE;
8318 }
8319 
8320 /*
8321  * Handle back-word command "b" and "B".
8322  * cap->arg is 1 for "B"
8323  */
8324     static void
8325 nv_bck_word(cap)
8326     cmdarg_T	*cap;
8327 {
8328     cap->oap->motion_type = MCHAR;
8329     cap->oap->inclusive = FALSE;
8330     curwin->w_set_curswant = TRUE;
8331     if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
8332 	clearopbeep(cap->oap);
8333 #ifdef FEAT_FOLDING
8334     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8335 	foldOpenCursor();
8336 #endif
8337 }
8338 
8339 /*
8340  * Handle word motion commands "e", "E", "w" and "W".
8341  * cap->arg is TRUE for "E" and "W".
8342  */
8343     static void
8344 nv_wordcmd(cap)
8345     cmdarg_T	*cap;
8346 {
8347     int		n;
8348     int		word_end;
8349     int		flag = FALSE;
8350     pos_T	startpos = curwin->w_cursor;
8351 
8352     /*
8353      * Set inclusive for the "E" and "e" command.
8354      */
8355     if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
8356 	word_end = TRUE;
8357     else
8358 	word_end = FALSE;
8359     cap->oap->inclusive = word_end;
8360 
8361     /*
8362      * "cw" and "cW" are a special case.
8363      */
8364     if (!word_end && cap->oap->op_type == OP_CHANGE)
8365     {
8366 	n = gchar_cursor();
8367 	if (n != NUL)			/* not an empty line */
8368 	{
8369 	    if (vim_iswhite(n))
8370 	    {
8371 		/*
8372 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
8373 		 * changes one character, not all blanks until the start of
8374 		 * the next word.  Only do this when the 'w' flag is included
8375 		 * in 'cpoptions'.
8376 		 */
8377 		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
8378 		{
8379 		    cap->oap->inclusive = TRUE;
8380 		    cap->oap->motion_type = MCHAR;
8381 		    return;
8382 		}
8383 	    }
8384 	    else
8385 	    {
8386 		/*
8387 		 * This is a little strange. To match what the real Vi does,
8388 		 * we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
8389 		 * that we are not on a space or a TAB.  This seems impolite
8390 		 * at first, but it's really more what we mean when we say
8391 		 * 'cw'.
8392 		 * Another strangeness: When standing on the end of a word
8393 		 * "ce" will change until the end of the next wordt, but "cw"
8394 		 * will change only one character! This is done by setting
8395 		 * flag.
8396 		 */
8397 		cap->oap->inclusive = TRUE;
8398 		word_end = TRUE;
8399 		flag = TRUE;
8400 	    }
8401 	}
8402     }
8403 
8404     cap->oap->motion_type = MCHAR;
8405     curwin->w_set_curswant = TRUE;
8406     if (word_end)
8407 	n = end_word(cap->count1, cap->arg, flag, FALSE);
8408     else
8409 	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
8410 
8411     /* Don't leave the cursor on the NUL past the end of line. Unless we
8412      * didn't move it forward. */
8413     if (lt(startpos, curwin->w_cursor))
8414 	adjust_cursor(cap->oap);
8415 
8416     if (n == FAIL && cap->oap->op_type == OP_NOP)
8417 	clearopbeep(cap->oap);
8418     else
8419     {
8420 #ifdef FEAT_VISUAL
8421 	adjust_for_sel(cap);
8422 #endif
8423 #ifdef FEAT_FOLDING
8424 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8425 	    foldOpenCursor();
8426 #endif
8427     }
8428 }
8429 
8430 /*
8431  * Used after a movement command: If the cursor ends up on the NUL after the
8432  * end of the line, may move it back to the last character and make the motion
8433  * inclusive.
8434  */
8435     static void
8436 adjust_cursor(oap)
8437     oparg_T *oap;
8438 {
8439     /* The cursor cannot remain on the NUL when:
8440      * - the column is > 0
8441      * - not in Visual mode or 'selection' is "o"
8442      * - 'virtualedit' is not "all" and not "onemore".
8443      */
8444     if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL
8445 #ifdef FEAT_VISUAL
8446 		&& (!VIsual_active || *p_sel == 'o')
8447 #endif
8448 #ifdef FEAT_VIRTUALEDIT
8449 		&& !virtual_active() && (ve_flags & VE_ONEMORE) == 0
8450 #endif
8451 		)
8452     {
8453 	--curwin->w_cursor.col;
8454 #ifdef FEAT_MBYTE
8455 	/* prevent cursor from moving on the trail byte */
8456 	if (has_mbyte)
8457 	    mb_adjust_cursor();
8458 #endif
8459 	oap->inclusive = TRUE;
8460     }
8461 }
8462 
8463 /*
8464  * "0" and "^" commands.
8465  * cap->arg is the argument for beginline().
8466  */
8467     static void
8468 nv_beginline(cap)
8469     cmdarg_T	*cap;
8470 {
8471     cap->oap->motion_type = MCHAR;
8472     cap->oap->inclusive = FALSE;
8473     beginline(cap->arg);
8474 #ifdef FEAT_FOLDING
8475     if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8476 	foldOpenCursor();
8477 #endif
8478     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8479 			       one-character line). */
8480 }
8481 
8482 #ifdef FEAT_VISUAL
8483 /*
8484  * In exclusive Visual mode, may include the last character.
8485  */
8486     static void
8487 adjust_for_sel(cap)
8488     cmdarg_T	*cap;
8489 {
8490     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
8491 	    && gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor))
8492     {
8493 # ifdef FEAT_MBYTE
8494 	if (has_mbyte)
8495 	    inc_cursor();
8496 	else
8497 # endif
8498 	    ++curwin->w_cursor.col;
8499 	cap->oap->inclusive = FALSE;
8500     }
8501 }
8502 
8503 /*
8504  * Exclude last character at end of Visual area for 'selection' == "exclusive".
8505  * Should check VIsual_mode before calling this.
8506  * Returns TRUE when backed up to the previous line.
8507  */
8508     static int
8509 unadjust_for_sel()
8510 {
8511     pos_T	*pp;
8512 
8513     if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor))
8514     {
8515 	if (lt(VIsual, curwin->w_cursor))
8516 	    pp = &curwin->w_cursor;
8517 	else
8518 	    pp = &VIsual;
8519 #ifdef FEAT_VIRTUALEDIT
8520 	if (pp->coladd > 0)
8521 	    --pp->coladd;
8522 	else
8523 #endif
8524 	if (pp->col > 0)
8525 	{
8526 	    --pp->col;
8527 #ifdef FEAT_MBYTE
8528 	    mb_adjustpos(pp);
8529 #endif
8530 	}
8531 	else if (pp->lnum > 1)
8532 	{
8533 	    --pp->lnum;
8534 	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
8535 	    return TRUE;
8536 	}
8537     }
8538     return FALSE;
8539 }
8540 
8541 /*
8542  * SELECT key in Normal or Visual mode: end of Select mode mapping.
8543  */
8544     static void
8545 nv_select(cap)
8546     cmdarg_T	*cap;
8547 {
8548     if (VIsual_active)
8549 	VIsual_select = TRUE;
8550     else if (VIsual_reselect)
8551     {
8552 	cap->nchar = 'v';	    /* fake "gv" command */
8553 	cap->arg = TRUE;
8554 	nv_g_cmd(cap);
8555     }
8556 }
8557 
8558 #endif
8559 
8560 /*
8561  * "G", "gg", CTRL-END, CTRL-HOME.
8562  * cap->arg is TRUE for "G".
8563  */
8564     static void
8565 nv_goto(cap)
8566     cmdarg_T	*cap;
8567 {
8568     linenr_T	lnum;
8569 
8570     if (cap->arg)
8571 	lnum = curbuf->b_ml.ml_line_count;
8572     else
8573 	lnum = 1L;
8574     cap->oap->motion_type = MLINE;
8575     setpcmark();
8576 
8577     /* When a count is given, use it instead of the default lnum */
8578     if (cap->count0 != 0)
8579 	lnum = cap->count0;
8580     if (lnum < 1L)
8581 	lnum = 1L;
8582     else if (lnum > curbuf->b_ml.ml_line_count)
8583 	lnum = curbuf->b_ml.ml_line_count;
8584     curwin->w_cursor.lnum = lnum;
8585     beginline(BL_SOL | BL_FIX);
8586 #ifdef FEAT_FOLDING
8587     if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP)
8588 	foldOpenCursor();
8589 #endif
8590 }
8591 
8592 /*
8593  * CTRL-\ in Normal mode.
8594  */
8595     static void
8596 nv_normal(cap)
8597     cmdarg_T	*cap;
8598 {
8599     if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G)
8600     {
8601 	clearop(cap->oap);
8602 	if (restart_edit != 0 && mode_displayed)
8603 	    clear_cmdline = TRUE;		/* unshow mode later */
8604 	restart_edit = 0;
8605 #ifdef FEAT_CMDWIN
8606 	if (cmdwin_type != 0)
8607 	    cmdwin_result = Ctrl_C;
8608 #endif
8609 #ifdef FEAT_VISUAL
8610 	if (VIsual_active)
8611 	{
8612 	    end_visual_mode();		/* stop Visual */
8613 	    redraw_curbuf_later(INVERTED);
8614 	}
8615 #endif
8616 	/* CTRL-\ CTRL-G restarts Insert mode when 'insertmode' is set. */
8617 	if (cap->nchar == Ctrl_G && p_im)
8618 	    restart_edit = 'a';
8619     }
8620     else
8621 	clearopbeep(cap->oap);
8622 }
8623 
8624 /*
8625  * ESC in Normal mode: beep, but don't flush buffers.
8626  * Don't even beep if we are canceling a command.
8627  */
8628     static void
8629 nv_esc(cap)
8630     cmdarg_T	*cap;
8631 {
8632     int		no_reason;
8633 
8634     no_reason = (cap->oap->op_type == OP_NOP
8635 		&& cap->opcount == 0
8636 		&& cap->count0 == 0
8637 		&& cap->oap->regname == 0
8638 		&& !p_im);
8639 
8640     if (cap->arg)		/* TRUE for CTRL-C */
8641     {
8642 	if (restart_edit == 0
8643 #ifdef FEAT_CMDWIN
8644 		&& cmdwin_type == 0
8645 #endif
8646 #ifdef FEAT_VISUAL
8647 		&& !VIsual_active
8648 #endif
8649 		&& no_reason)
8650 	    MSG(_("Type  :quit<Enter>  to exit Vim"));
8651 
8652 	/* Don't reset "restart_edit" when 'insertmode' is set, it won't be
8653 	 * set again below when halfway a mapping. */
8654 	if (!p_im)
8655 	    restart_edit = 0;
8656 #ifdef FEAT_CMDWIN
8657 	if (cmdwin_type != 0)
8658 	{
8659 	    cmdwin_result = K_IGNORE;
8660 	    got_int = FALSE;	/* don't stop executing autocommands et al. */
8661 	    return;
8662 	}
8663 #endif
8664     }
8665 
8666 #ifdef FEAT_VISUAL
8667     if (VIsual_active)
8668     {
8669 	end_visual_mode();	/* stop Visual */
8670 	check_cursor_col();	/* make sure cursor is not beyond EOL */
8671 	curwin->w_set_curswant = TRUE;
8672 	redraw_curbuf_later(INVERTED);
8673     }
8674     else
8675 #endif
8676 	if (no_reason)
8677 	    vim_beep();
8678     clearop(cap->oap);
8679 
8680     /* A CTRL-C is often used at the start of a menu.  When 'insertmode' is
8681      * set return to Insert mode afterwards. */
8682     if (restart_edit == 0 && goto_im()
8683 #ifdef FEAT_EX_EXTRA
8684 	    && ex_normal_busy == 0
8685 #endif
8686 	    )
8687 	restart_edit = 'a';
8688 }
8689 
8690 /*
8691  * Handle "A", "a", "I", "i" and <Insert> commands.
8692  */
8693     static void
8694 nv_edit(cap)
8695     cmdarg_T *cap;
8696 {
8697     /* <Insert> is equal to "i" */
8698     if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
8699 	cap->cmdchar = 'i';
8700 
8701 #ifdef FEAT_VISUAL
8702     /* in Visual mode "A" and "I" are an operator */
8703     if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
8704 	v_visop(cap);
8705 
8706     /* in Visual mode and after an operator "a" and "i" are for text objects */
8707     else
8708 #endif
8709 	if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
8710 	    && (cap->oap->op_type != OP_NOP
8711 #ifdef FEAT_VISUAL
8712 		|| VIsual_active
8713 #endif
8714 		))
8715     {
8716 #ifdef FEAT_TEXTOBJ
8717 	nv_object(cap);
8718 #else
8719 	clearopbeep(cap->oap);
8720 #endif
8721     }
8722     else if (!curbuf->b_p_ma && !p_im)
8723     {
8724 	/* Only give this error when 'insertmode' is off. */
8725 	EMSG(_(e_modifiable));
8726 	clearop(cap->oap);
8727     }
8728     else if (!checkclearopq(cap->oap))
8729     {
8730 	switch (cap->cmdchar)
8731 	{
8732 	    case 'A':	/* "A"ppend after the line */
8733 		curwin->w_set_curswant = TRUE;
8734 #ifdef FEAT_VIRTUALEDIT
8735 		if (ve_flags == VE_ALL)
8736 		{
8737 		    int save_State = State;
8738 
8739 		    /* Pretent Insert mode here to allow the cursor on the
8740 		     * character past the end of the line */
8741 		    State = INSERT;
8742 		    coladvance((colnr_T)MAXCOL);
8743 		    State = save_State;
8744 		}
8745 		else
8746 #endif
8747 		    curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
8748 		break;
8749 
8750 	    case 'I':	/* "I"nsert before the first non-blank */
8751 		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
8752 		    beginline(BL_WHITE);
8753 		else
8754 		    beginline(BL_WHITE|BL_FIX);
8755 		break;
8756 
8757 	    case 'a':	/* "a"ppend is like "i"nsert on the next character. */
8758 #ifdef FEAT_VIRTUALEDIT
8759 		/* increment coladd when in virtual space, increment the
8760 		 * column otherwise, also to append after an unprintable char */
8761 		if (virtual_active()
8762 			&& (curwin->w_cursor.coladd > 0
8763 			    || *ml_get_cursor() == NUL
8764 			    || *ml_get_cursor() == TAB))
8765 		    curwin->w_cursor.coladd++;
8766 		else
8767 #endif
8768 		if (*ml_get_cursor() != NUL)
8769 		    inc_cursor();
8770 		break;
8771 	}
8772 
8773 #ifdef FEAT_VIRTUALEDIT
8774 	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
8775 	{
8776 	    int save_State = State;
8777 
8778 	    /* Pretent Insert mode here to allow the cursor on the
8779 	     * character past the end of the line */
8780 	    State = INSERT;
8781 	    coladvance(getviscol());
8782 	    State = save_State;
8783 	}
8784 #endif
8785 
8786 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
8787     }
8788 }
8789 
8790 /*
8791  * Invoke edit() and take care of "restart_edit" and the return value.
8792  */
8793     static void
8794 invoke_edit(cap, repl, cmd, startln)
8795     cmdarg_T	*cap;
8796     int		repl;		/* "r" or "gr" command */
8797     int		cmd;
8798     int		startln;
8799 {
8800     int		restart_edit_save = 0;
8801 
8802     /* Complicated: When the user types "a<C-O>a" we don't want to do Insert
8803      * mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
8804      * it. */
8805     if (repl || !stuff_empty())
8806 	restart_edit_save = restart_edit;
8807     else
8808 	restart_edit_save = 0;
8809 
8810     /* Always reset "restart_edit", this is not a restarted edit. */
8811     restart_edit = 0;
8812 
8813     if (edit(cmd, startln, cap->count1))
8814 	cap->retval |= CA_COMMAND_BUSY;
8815 
8816     if (restart_edit == 0)
8817 	restart_edit = restart_edit_save;
8818 }
8819 
8820 #ifdef FEAT_TEXTOBJ
8821 /*
8822  * "a" or "i" while an operator is pending or in Visual mode: object motion.
8823  */
8824     static void
8825 nv_object(cap)
8826     cmdarg_T	*cap;
8827 {
8828     int		flag;
8829     int		include;
8830     char_u	*mps_save;
8831 
8832     if (cap->cmdchar == 'i')
8833 	include = FALSE;    /* "ix" = inner object: exclude white space */
8834     else
8835 	include = TRUE;	    /* "ax" = an object: include white space */
8836 
8837     /* Make sure (), [], {} and <> are in 'matchpairs' */
8838     mps_save = curbuf->b_p_mps;
8839     curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";
8840 
8841     switch (cap->nchar)
8842     {
8843 	case 'w': /* "aw" = a word */
8844 		flag = current_word(cap->oap, cap->count1, include, FALSE);
8845 		break;
8846 	case 'W': /* "aW" = a WORD */
8847 		flag = current_word(cap->oap, cap->count1, include, TRUE);
8848 		break;
8849 	case 'b': /* "ab" = a braces block */
8850 	case '(':
8851 	case ')':
8852 		flag = current_block(cap->oap, cap->count1, include, '(', ')');
8853 		break;
8854 	case 'B': /* "aB" = a Brackets block */
8855 	case '{':
8856 	case '}':
8857 		flag = current_block(cap->oap, cap->count1, include, '{', '}');
8858 		break;
8859 	case '[': /* "a[" = a [] block */
8860 	case ']':
8861 		flag = current_block(cap->oap, cap->count1, include, '[', ']');
8862 		break;
8863 	case '<': /* "a<" = a <> block */
8864 	case '>':
8865 		flag = current_block(cap->oap, cap->count1, include, '<', '>');
8866 		break;
8867 	case 't': /* "at" = a tag block (xml and html) */
8868 		flag = current_tagblock(cap->oap, cap->count1, include);
8869 		break;
8870 	case 'p': /* "ap" = a paragraph */
8871 		flag = current_par(cap->oap, cap->count1, include, 'p');
8872 		break;
8873 	case 's': /* "as" = a sentence */
8874 		flag = current_sent(cap->oap, cap->count1, include);
8875 		break;
8876 	case '"': /* "a"" = a double quoted string */
8877 	case '\'': /* "a'" = a single quoted string */
8878 	case '`': /* "a`" = a backtick quoted string */
8879 		flag = current_quote(cap->oap, cap->count1, include,
8880 								  cap->nchar);
8881 		break;
8882 #if 0	/* TODO */
8883 	case 'S': /* "aS" = a section */
8884 	case 'f': /* "af" = a filename */
8885 	case 'u': /* "au" = a URL */
8886 #endif
8887 	default:
8888 		flag = FAIL;
8889 		break;
8890     }
8891 
8892     curbuf->b_p_mps = mps_save;
8893     if (flag == FAIL)
8894 	clearopbeep(cap->oap);
8895     adjust_cursor_col();
8896     curwin->w_set_curswant = TRUE;
8897 }
8898 #endif
8899 
8900 /*
8901  * "q" command: Start/stop recording.
8902  * "q:", "q/", "q?": edit command-line in command-line window.
8903  */
8904     static void
8905 nv_record(cap)
8906     cmdarg_T	*cap;
8907 {
8908     if (cap->oap->op_type == OP_FORMAT)
8909     {
8910 	/* "gqq" is the same as "gqgq": format line */
8911 	cap->cmdchar = 'g';
8912 	cap->nchar = 'q';
8913 	nv_operator(cap);
8914     }
8915     else if (!checkclearop(cap->oap))
8916     {
8917 #ifdef FEAT_CMDWIN
8918 	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
8919 	{
8920 	    stuffcharReadbuff(cap->nchar);
8921 	    stuffcharReadbuff(K_CMDWIN);
8922 	}
8923 	else
8924 #endif
8925 	    /* (stop) recording into a named register, unless executing a
8926 	     * register */
8927 	    if (!Exec_reg && do_record(cap->nchar) == FAIL)
8928 		clearopbeep(cap->oap);
8929     }
8930 }
8931 
8932 /*
8933  * Handle the "@r" command.
8934  */
8935     static void
8936 nv_at(cap)
8937     cmdarg_T	*cap;
8938 {
8939     if (checkclearop(cap->oap))
8940 	return;
8941 #ifdef FEAT_EVAL
8942     if (cap->nchar == '=')
8943     {
8944 	if (get_expr_register() == NUL)
8945 	    return;
8946     }
8947 #endif
8948     while (cap->count1-- && !got_int)
8949     {
8950 	if (do_execreg(cap->nchar, FALSE, FALSE, FALSE) == FAIL)
8951 	{
8952 	    clearopbeep(cap->oap);
8953 	    break;
8954 	}
8955 	line_breakcheck();
8956     }
8957 }
8958 
8959 /*
8960  * Handle the CTRL-U and CTRL-D commands.
8961  */
8962     static void
8963 nv_halfpage(cap)
8964     cmdarg_T	*cap;
8965 {
8966     if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
8967 	    || (cap->cmdchar == Ctrl_D
8968 		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
8969 	clearopbeep(cap->oap);
8970     else if (!checkclearop(cap->oap))
8971 	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
8972 }
8973 
8974 /*
8975  * Handle "J" or "gJ" command.
8976  */
8977     static void
8978 nv_join(cap)
8979     cmdarg_T *cap;
8980 {
8981 #ifdef FEAT_VISUAL
8982     if (VIsual_active)	/* join the visual lines */
8983 	nv_operator(cap);
8984     else
8985 #endif
8986 	if (!checkclearop(cap->oap))
8987     {
8988 	if (cap->count0 <= 1)
8989 	    cap->count0 = 2;	    /* default for join is two lines! */
8990 	if (curwin->w_cursor.lnum + cap->count0 - 1 >
8991 						   curbuf->b_ml.ml_line_count)
8992 	    clearopbeep(cap->oap);  /* beyond last line */
8993 	else
8994 	{
8995 	    prep_redo(cap->oap->regname, cap->count0,
8996 			 NUL, cap->cmdchar, NUL, NUL, cap->nchar);
8997 	    do_do_join(cap->count0, cap->nchar == NUL);
8998 	}
8999     }
9000 }
9001 
9002 /*
9003  * "P", "gP", "p" and "gp" commands.
9004  */
9005     static void
9006 nv_put(cap)
9007     cmdarg_T  *cap;
9008 {
9009 #ifdef FEAT_VISUAL
9010     int		regname = 0;
9011     void	*reg1 = NULL, *reg2 = NULL;
9012     int		empty = FALSE;
9013     int		was_visual = FALSE;
9014 #endif
9015     int		dir;
9016     int		flags = 0;
9017 
9018     if (cap->oap->op_type != OP_NOP)
9019     {
9020 #ifdef FEAT_DIFF
9021 	/* "dp" is ":diffput" */
9022 	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
9023 	{
9024 	    clearop(cap->oap);
9025 	    nv_diffgetput(TRUE);
9026 	}
9027 	else
9028 #endif
9029 	clearopbeep(cap->oap);
9030     }
9031     else
9032     {
9033 	dir = (cap->cmdchar == 'P'
9034 		|| (cap->cmdchar == 'g' && cap->nchar == 'P'))
9035 							 ? BACKWARD : FORWARD;
9036 	prep_redo_cmd(cap);
9037 	if (cap->cmdchar == 'g')
9038 	    flags |= PUT_CURSEND;
9039 
9040 #ifdef FEAT_VISUAL
9041 	if (VIsual_active)
9042 	{
9043 	    /* Putting in Visual mode: The put text replaces the selected
9044 	     * text.  First delete the selected text, then put the new text.
9045 	     * Need to save and restore the registers that the delete
9046 	     * overwrites if the old contents is being put.
9047 	     */
9048 	    was_visual = TRUE;
9049 	    regname = cap->oap->regname;
9050 # ifdef FEAT_CLIPBOARD
9051 	    adjust_clip_reg(&regname);
9052 # endif
9053 	    if (regname == 0 || VIM_ISDIGIT(regname)
9054 # ifdef FEAT_CLIPBOARD
9055 		    || (clip_unnamed && (regname == '*' || regname == '+'))
9056 # endif
9057 
9058 		    )
9059 	    {
9060 		/* the delete is going to overwrite the register we want to
9061 		 * put, save it first. */
9062 		reg1 = get_register(regname, TRUE);
9063 	    }
9064 
9065 	    /* Now delete the selected text. */
9066 	    cap->cmdchar = 'd';
9067 	    cap->nchar = NUL;
9068 	    cap->oap->regname = NUL;
9069 	    nv_operator(cap);
9070 	    do_pending_operator(cap, 0, FALSE);
9071 	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
9072 
9073 	    /* delete PUT_LINE_BACKWARD; */
9074 	    cap->oap->regname = regname;
9075 
9076 	    if (reg1 != NULL)
9077 	    {
9078 		/* Delete probably changed the register we want to put, save
9079 		 * it first. Then put back what was there before the delete. */
9080 		reg2 = get_register(regname, FALSE);
9081 		put_register(regname, reg1);
9082 	    }
9083 
9084 	    /* When deleted a linewise Visual area, put the register as
9085 	     * lines to avoid it joined with the next line.  When deletion was
9086 	     * characterwise, split a line when putting lines. */
9087 	    if (VIsual_mode == 'V')
9088 		flags |= PUT_LINE;
9089 	    else if (VIsual_mode == 'v')
9090 		flags |= PUT_LINE_SPLIT;
9091 	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
9092 		flags |= PUT_LINE_FORWARD;
9093 	    dir = BACKWARD;
9094 	    if ((VIsual_mode != 'V'
9095 			&& curwin->w_cursor.col < curbuf->b_op_start.col)
9096 		    || (VIsual_mode == 'V'
9097 			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
9098 		/* cursor is at the end of the line or end of file, put
9099 		 * forward. */
9100 		dir = FORWARD;
9101 	}
9102 #endif
9103 	do_put(cap->oap->regname, dir, cap->count1, flags);
9104 
9105 #ifdef FEAT_VISUAL
9106 	/* If a register was saved, put it back now. */
9107 	if (reg2 != NULL)
9108 	    put_register(regname, reg2);
9109 
9110 	/* What to reselect with "gv"?  Selecting the just put text seems to
9111 	 * be the most useful, since the original text was removed. */
9112 	if (was_visual)
9113 	{
9114 	    curbuf->b_visual.vi_start = curbuf->b_op_start;
9115 	    curbuf->b_visual.vi_end = curbuf->b_op_end;
9116 	}
9117 
9118 	/* When all lines were selected and deleted do_put() leaves an empty
9119 	 * line that needs to be deleted now. */
9120 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
9121 	{
9122 	    ml_delete(curbuf->b_ml.ml_line_count, TRUE);
9123 
9124 	    /* If the cursor was in that line, move it to the end of the last
9125 	     * line. */
9126 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
9127 	    {
9128 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
9129 		coladvance((colnr_T)MAXCOL);
9130 	    }
9131 	}
9132 #endif
9133 	auto_format(FALSE, TRUE);
9134     }
9135 }
9136 
9137 /*
9138  * "o" and "O" commands.
9139  */
9140     static void
9141 nv_open(cap)
9142     cmdarg_T	*cap;
9143 {
9144 #ifdef FEAT_DIFF
9145     /* "do" is ":diffget" */
9146     if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
9147     {
9148 	clearop(cap->oap);
9149 	nv_diffgetput(FALSE);
9150     }
9151     else
9152 #endif
9153 #ifdef FEAT_VISUAL
9154     if (VIsual_active)  /* switch start and end of visual */
9155 	v_swap_corners(cap->cmdchar);
9156     else
9157 #endif
9158 	n_opencmd(cap);
9159 }
9160 
9161 #ifdef FEAT_SNIFF
9162 /*ARGSUSED*/
9163     static void
9164 nv_sniff(cap)
9165     cmdarg_T	*cap;
9166 {
9167     ProcessSniffRequests();
9168 }
9169 #endif
9170 
9171 #ifdef FEAT_NETBEANS_INTG
9172     static void
9173 nv_nbcmd(cap)
9174     cmdarg_T	*cap;
9175 {
9176     netbeans_keycommand(cap->nchar);
9177 }
9178 #endif
9179 
9180 #ifdef FEAT_DND
9181 /*ARGSUSED*/
9182     static void
9183 nv_drop(cap)
9184     cmdarg_T	*cap;
9185 {
9186     do_put('~', BACKWARD, 1L, PUT_CURSEND);
9187 }
9188 #endif
9189 
9190 #ifdef FEAT_AUTOCMD
9191 /*
9192  * Trigger CursorHold event.
9193  * When waiting for a character for 'updatetime' K_CURSORHOLD is put in the
9194  * input buffer.  "did_cursorhold" is set to avoid retriggering.
9195  */
9196 /*ARGSUSED*/
9197     static void
9198 nv_cursorhold(cap)
9199     cmdarg_T	*cap;
9200 {
9201     apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
9202     did_cursorhold = TRUE;
9203     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
9204 }
9205 #endif
9206