xref: /vim-8.2.3635/src/normal.c (revision f193fffd)
1 /* vi:set ts=8 sts=4 sw=4:
2  *
3  * VIM - Vi IMproved	by Bram Moolenaar
4  *
5  * Do ":help uganda"  in Vim to read copying and usage conditions.
6  * Do ":help credits" in Vim to see a list of people who contributed.
7  * See README.txt for an overview of the Vim source code.
8  */
9 /*
10  * normal.c:	Contains the main routine for processing characters in command
11  *		mode.  Communicates closely with the code in ops.c to handle
12  *		the operators.
13  */
14 
15 #include "vim.h"
16 
17 #ifdef FEAT_VISUAL
18 /*
19  * The Visual area is remembered for reselection.
20  */
21 static int	resel_VIsual_mode = NUL;	/* 'v', 'V', or Ctrl-V */
22 static linenr_T	resel_VIsual_line_count;	/* number of lines */
23 static colnr_T	resel_VIsual_col;		/* nr of cols or end col */
24 
25 static int	restart_VIsual_select = 0;
26 #endif
27 
28 static int
29 # ifdef __BORLANDC__
30 _RTLENTRYF
31 # endif
32 		nv_compare __ARGS((const void *s1, const void *s2));
33 static int	find_command __ARGS((int cmdchar));
34 static void	op_colon __ARGS((oparg_T *oap));
35 static void	op_function __ARGS((oparg_T *oap));
36 #if defined(FEAT_MOUSE) && defined(FEAT_VISUAL)
37 static void	find_start_of_word __ARGS((pos_T *));
38 static void	find_end_of_word __ARGS((pos_T *));
39 static int	get_mouse_class __ARGS((char_u *p));
40 #endif
41 static void	prep_redo_cmd __ARGS((cmdarg_T *cap));
42 static void	prep_redo __ARGS((int regname, long, int, int, int, int, int));
43 static int	checkclearop __ARGS((oparg_T *oap));
44 static int	checkclearopq __ARGS((oparg_T *oap));
45 static void	clearop __ARGS((oparg_T *oap));
46 static void	clearopbeep __ARGS((oparg_T *oap));
47 #ifdef FEAT_VISUAL
48 static void	unshift_special __ARGS((cmdarg_T *cap));
49 #endif
50 #ifdef FEAT_CMDL_INFO
51 static void	del_from_showcmd __ARGS((int));
52 #endif
53 
54 /*
55  * nv_*(): functions called to handle Normal and Visual mode commands.
56  * n_*(): functions called to handle Normal mode commands.
57  * v_*(): functions called to handle Visual mode commands.
58  */
59 static void	nv_ignore __ARGS((cmdarg_T *cap));
60 static void	nv_nop __ARGS((cmdarg_T *cap));
61 static void	nv_error __ARGS((cmdarg_T *cap));
62 static void	nv_help __ARGS((cmdarg_T *cap));
63 static void	nv_addsub __ARGS((cmdarg_T *cap));
64 static void	nv_page __ARGS((cmdarg_T *cap));
65 static void	nv_gd __ARGS((oparg_T *oap, int nchar, int thisblock));
66 static int	nv_screengo __ARGS((oparg_T *oap, int dir, long dist));
67 #ifdef FEAT_MOUSE
68 static void	nv_mousescroll __ARGS((cmdarg_T *cap));
69 static void	nv_mouse __ARGS((cmdarg_T *cap));
70 #endif
71 static void	nv_scroll_line __ARGS((cmdarg_T *cap));
72 static void	nv_zet __ARGS((cmdarg_T *cap));
73 #ifdef FEAT_GUI
74 static void	nv_ver_scrollbar __ARGS((cmdarg_T *cap));
75 static void	nv_hor_scrollbar __ARGS((cmdarg_T *cap));
76 #endif
77 #ifdef FEAT_GUI_TABLINE
78 static void	nv_tabline __ARGS((cmdarg_T *cap));
79 static void	nv_tabmenu __ARGS((cmdarg_T *cap));
80 #endif
81 static void	nv_exmode __ARGS((cmdarg_T *cap));
82 static void	nv_colon __ARGS((cmdarg_T *cap));
83 static void	nv_ctrlg __ARGS((cmdarg_T *cap));
84 static void	nv_ctrlh __ARGS((cmdarg_T *cap));
85 static void	nv_clear __ARGS((cmdarg_T *cap));
86 static void	nv_ctrlo __ARGS((cmdarg_T *cap));
87 static void	nv_hat __ARGS((cmdarg_T *cap));
88 static void	nv_Zet __ARGS((cmdarg_T *cap));
89 static void	nv_ident __ARGS((cmdarg_T *cap));
90 static void	nv_tagpop __ARGS((cmdarg_T *cap));
91 static void	nv_scroll __ARGS((cmdarg_T *cap));
92 static void	nv_right __ARGS((cmdarg_T *cap));
93 static void	nv_left __ARGS((cmdarg_T *cap));
94 static void	nv_up __ARGS((cmdarg_T *cap));
95 static void	nv_down __ARGS((cmdarg_T *cap));
96 #ifdef FEAT_SEARCHPATH
97 static void	nv_gotofile __ARGS((cmdarg_T *cap));
98 #endif
99 static void	nv_end __ARGS((cmdarg_T *cap));
100 static void	nv_dollar __ARGS((cmdarg_T *cap));
101 static void	nv_search __ARGS((cmdarg_T *cap));
102 static void	nv_next __ARGS((cmdarg_T *cap));
103 static void	normal_search __ARGS((cmdarg_T *cap, int dir, char_u *pat, int opt));
104 static void	nv_csearch __ARGS((cmdarg_T *cap));
105 static void	nv_brackets __ARGS((cmdarg_T *cap));
106 static void	nv_percent __ARGS((cmdarg_T *cap));
107 static void	nv_brace __ARGS((cmdarg_T *cap));
108 static void	nv_mark __ARGS((cmdarg_T *cap));
109 static void	nv_findpar __ARGS((cmdarg_T *cap));
110 static void	nv_undo __ARGS((cmdarg_T *cap));
111 static void	nv_kundo __ARGS((cmdarg_T *cap));
112 static void	nv_Replace __ARGS((cmdarg_T *cap));
113 #ifdef FEAT_VREPLACE
114 static void	nv_vreplace __ARGS((cmdarg_T *cap));
115 #endif
116 #ifdef FEAT_VISUAL
117 static void	v_swap_corners __ARGS((int cmdchar));
118 #endif
119 static void	nv_replace __ARGS((cmdarg_T *cap));
120 static void	n_swapchar __ARGS((cmdarg_T *cap));
121 static void	nv_cursormark __ARGS((cmdarg_T *cap, int flag, pos_T *pos));
122 #ifdef FEAT_VISUAL
123 static void	v_visop __ARGS((cmdarg_T *cap));
124 #endif
125 static void	nv_subst __ARGS((cmdarg_T *cap));
126 static void	nv_abbrev __ARGS((cmdarg_T *cap));
127 static void	nv_optrans __ARGS((cmdarg_T *cap));
128 static void	nv_gomark __ARGS((cmdarg_T *cap));
129 static void	nv_pcmark __ARGS((cmdarg_T *cap));
130 static void	nv_regname __ARGS((cmdarg_T *cap));
131 #ifdef FEAT_VISUAL
132 static void	nv_visual __ARGS((cmdarg_T *cap));
133 static void	n_start_visual_mode __ARGS((int c));
134 #endif
135 static void	nv_window __ARGS((cmdarg_T *cap));
136 static void	nv_suspend __ARGS((cmdarg_T *cap));
137 static void	nv_g_cmd __ARGS((cmdarg_T *cap));
138 static void	n_opencmd __ARGS((cmdarg_T *cap));
139 static void	nv_dot __ARGS((cmdarg_T *cap));
140 static void	nv_redo __ARGS((cmdarg_T *cap));
141 static void	nv_Undo __ARGS((cmdarg_T *cap));
142 static void	nv_tilde __ARGS((cmdarg_T *cap));
143 static void	nv_operator __ARGS((cmdarg_T *cap));
144 static void	nv_lineop __ARGS((cmdarg_T *cap));
145 static void	nv_home __ARGS((cmdarg_T *cap));
146 static void	nv_pipe __ARGS((cmdarg_T *cap));
147 static void	nv_bck_word __ARGS((cmdarg_T *cap));
148 static void	nv_wordcmd __ARGS((cmdarg_T *cap));
149 static void	nv_beginline __ARGS((cmdarg_T *cap));
150 #ifdef FEAT_VISUAL
151 static void	adjust_for_sel __ARGS((cmdarg_T *cap));
152 static int	unadjust_for_sel __ARGS((void));
153 static void	nv_select __ARGS((cmdarg_T *cap));
154 #endif
155 static void	nv_goto __ARGS((cmdarg_T *cap));
156 static void	nv_normal __ARGS((cmdarg_T *cap));
157 static void	nv_esc __ARGS((cmdarg_T *oap));
158 static void	nv_edit __ARGS((cmdarg_T *cap));
159 static void	invoke_edit __ARGS((cmdarg_T *cap, int repl, int cmd, int startln));
160 #ifdef FEAT_TEXTOBJ
161 static void	nv_object __ARGS((cmdarg_T *cap));
162 #endif
163 static void	nv_record __ARGS((cmdarg_T *cap));
164 static void	nv_at __ARGS((cmdarg_T *cap));
165 static void	nv_halfpage __ARGS((cmdarg_T *cap));
166 static void	nv_join __ARGS((cmdarg_T *cap));
167 static void	nv_put __ARGS((cmdarg_T *cap));
168 static void	nv_open __ARGS((cmdarg_T *cap));
169 #ifdef FEAT_SNIFF
170 static void	nv_sniff __ARGS((cmdarg_T *cap));
171 #endif
172 #ifdef FEAT_NETBEANS_INTG
173 static void	nv_nbcmd __ARGS((cmdarg_T *cap));
174 #endif
175 #ifdef FEAT_DND
176 static void	nv_drop __ARGS((cmdarg_T *cap));
177 #endif
178 #ifdef FEAT_AUTOCMD
179 static void	nv_cursorhold __ARGS((cmdarg_T *cap));
180 #endif
181 
182 /*
183  * Function to be called for a Normal or Visual mode command.
184  * The argument is a cmdarg_T.
185  */
186 typedef void (*nv_func_T) __ARGS((cmdarg_T *cap));
187 
188 /* Values for cmd_flags. */
189 #define NV_NCH	    0x01	  /* may need to get a second char */
190 #define NV_NCH_NOP  (0x02|NV_NCH) /* get second char when no operator pending */
191 #define NV_NCH_ALW  (0x04|NV_NCH) /* always get a second char */
192 #define NV_LANG	    0x08	/* second char needs language adjustment */
193 
194 #define NV_SS	    0x10	/* may start selection */
195 #define NV_SSS	    0x20	/* may start selection with shift modifier */
196 #define NV_STS	    0x40	/* may stop selection without shift modif. */
197 #define NV_RL	    0x80	/* 'rightleft' modifies command */
198 #define NV_KEEPREG  0x100	/* don't clear regname */
199 #define NV_NCW	    0x200	/* not allowed in command-line window */
200 
201 /*
202  * Generally speaking, every Normal mode command should either clear any
203  * pending operator (with *clearop*()), or set the motion type variable
204  * oap->motion_type.
205  *
206  * When a cursor motion command is made, it is marked as being a character or
207  * line oriented motion.  Then, if an operator is in effect, the operation
208  * becomes character or line oriented accordingly.
209  */
210 
211 /*
212  * This table contains one entry for every Normal or Visual mode command.
213  * The order doesn't matter, init_normal_cmds() will create a sorted index.
214  * It is faster when all keys from zero to '~' are present.
215  */
216 static const struct nv_cmd
217 {
218     int		cmd_char;	/* (first) command character */
219     nv_func_T   cmd_func;	/* function for this command */
220     short_u	cmd_flags;	/* NV_ flags */
221     short	cmd_arg;	/* value for ca.arg */
222 } nv_cmds[] =
223 {
224     {NUL,	nv_error,	0,			0},
225     {Ctrl_A,	nv_addsub,	0,			0},
226     {Ctrl_B,	nv_page,	NV_STS,			BACKWARD},
227     {Ctrl_C,	nv_esc,		0,			TRUE},
228     {Ctrl_D,	nv_halfpage,	0,			0},
229     {Ctrl_E,	nv_scroll_line,	0,			TRUE},
230     {Ctrl_F,	nv_page,	NV_STS,			FORWARD},
231     {Ctrl_G,	nv_ctrlg,	0,			0},
232     {Ctrl_H,	nv_ctrlh,	0,			0},
233     {Ctrl_I,	nv_pcmark,	0,			0},
234     {NL,	nv_down,	0,			FALSE},
235     {Ctrl_K,	nv_error,	0,			0},
236     {Ctrl_L,	nv_clear,	0,			0},
237     {Ctrl_M,	nv_down,	0,			TRUE},
238     {Ctrl_N,	nv_down,	NV_STS,			FALSE},
239     {Ctrl_O,	nv_ctrlo,	0,			0},
240     {Ctrl_P,	nv_up,		NV_STS,			FALSE},
241 #ifdef FEAT_VISUAL
242     {Ctrl_Q,	nv_visual,	0,			FALSE},
243 #else
244     {Ctrl_Q,	nv_ignore,	0,			0},
245 #endif
246     {Ctrl_R,	nv_redo,	0,			0},
247     {Ctrl_S,	nv_ignore,	0,			0},
248     {Ctrl_T,	nv_tagpop,	NV_NCW,			0},
249     {Ctrl_U,	nv_halfpage,	0,			0},
250 #ifdef FEAT_VISUAL
251     {Ctrl_V,	nv_visual,	0,			FALSE},
252     {'V',	nv_visual,	0,			FALSE},
253     {'v',	nv_visual,	0,			FALSE},
254 #else
255     {Ctrl_V,	nv_error,	0,			0},
256     {'V',	nv_error,	0,			0},
257     {'v',	nv_error,	0,			0},
258 #endif
259     {Ctrl_W,	nv_window,	0,			0},
260     {Ctrl_X,	nv_addsub,	0,			0},
261     {Ctrl_Y,	nv_scroll_line,	0,			FALSE},
262     {Ctrl_Z,	nv_suspend,	0,			0},
263     {ESC,	nv_esc,		0,			FALSE},
264     {Ctrl_BSL,	nv_normal,	NV_NCH_ALW,		0},
265     {Ctrl_RSB,	nv_ident,	NV_NCW,			0},
266     {Ctrl_HAT,	nv_hat,		NV_NCW,			0},
267     {Ctrl__,	nv_error,	0,			0},
268     {' ',	nv_right,	0,			0},
269     {'!',	nv_operator,	0,			0},
270     {'"',	nv_regname,	NV_NCH_NOP|NV_KEEPREG,	0},
271     {'#',	nv_ident,	0,			0},
272     {'$',	nv_dollar,	0,			0},
273     {'%',	nv_percent,	0,			0},
274     {'&',	nv_optrans,	0,			0},
275     {'\'',	nv_gomark,	NV_NCH_ALW,		TRUE},
276     {'(',	nv_brace,	0,			BACKWARD},
277     {')',	nv_brace,	0,			FORWARD},
278     {'*',	nv_ident,	0,			0},
279     {'+',	nv_down,	0,			TRUE},
280     {',',	nv_csearch,	0,			TRUE},
281     {'-',	nv_up,		0,			TRUE},
282     {'.',	nv_dot,		NV_KEEPREG,		0},
283     {'/',	nv_search,	0,			FALSE},
284     {'0',	nv_beginline,	0,			0},
285     {'1',	nv_ignore,	0,			0},
286     {'2',	nv_ignore,	0,			0},
287     {'3',	nv_ignore,	0,			0},
288     {'4',	nv_ignore,	0,			0},
289     {'5',	nv_ignore,	0,			0},
290     {'6',	nv_ignore,	0,			0},
291     {'7',	nv_ignore,	0,			0},
292     {'8',	nv_ignore,	0,			0},
293     {'9',	nv_ignore,	0,			0},
294     {':',	nv_colon,	0,			0},
295     {';',	nv_csearch,	0,			FALSE},
296     {'<',	nv_operator,	NV_RL,			0},
297     {'=',	nv_operator,	0,			0},
298     {'>',	nv_operator,	NV_RL,			0},
299     {'?',	nv_search,	0,			FALSE},
300     {'@',	nv_at,		NV_NCH_NOP,		FALSE},
301     {'A',	nv_edit,	0,			0},
302     {'B',	nv_bck_word,	0,			1},
303     {'C',	nv_abbrev,	NV_KEEPREG,		0},
304     {'D',	nv_abbrev,	NV_KEEPREG,		0},
305     {'E',	nv_wordcmd,	0,			TRUE},
306     {'F',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
307     {'G',	nv_goto,	0,			TRUE},
308     {'H',	nv_scroll,	0,			0},
309     {'I',	nv_edit,	0,			0},
310     {'J',	nv_join,	0,			0},
311     {'K',	nv_ident,	0,			0},
312     {'L',	nv_scroll,	0,			0},
313     {'M',	nv_scroll,	0,			0},
314     {'N',	nv_next,	0,			SEARCH_REV},
315     {'O',	nv_open,	0,			0},
316     {'P',	nv_put,		0,			0},
317     {'Q',	nv_exmode,	NV_NCW,			0},
318     {'R',	nv_Replace,	0,			FALSE},
319     {'S',	nv_subst,	NV_KEEPREG,		0},
320     {'T',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
321     {'U',	nv_Undo,	0,			0},
322     {'W',	nv_wordcmd,	0,			TRUE},
323     {'X',	nv_abbrev,	NV_KEEPREG,		0},
324     {'Y',	nv_abbrev,	NV_KEEPREG,		0},
325     {'Z',	nv_Zet,		NV_NCH_NOP|NV_NCW,	0},
326     {'[',	nv_brackets,	NV_NCH_ALW,		BACKWARD},
327     {'\\',	nv_error,	0,			0},
328     {']',	nv_brackets,	NV_NCH_ALW,		FORWARD},
329     {'^',	nv_beginline,	0,			BL_WHITE | BL_FIX},
330     {'_',	nv_lineop,	0,			0},
331     {'`',	nv_gomark,	NV_NCH_ALW,		FALSE},
332     {'a',	nv_edit,	NV_NCH,			0},
333     {'b',	nv_bck_word,	0,			0},
334     {'c',	nv_operator,	0,			0},
335     {'d',	nv_operator,	0,			0},
336     {'e',	nv_wordcmd,	0,			FALSE},
337     {'f',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
338     {'g',	nv_g_cmd,	NV_NCH_ALW,		FALSE},
339     {'h',	nv_left,	NV_RL,			0},
340     {'i',	nv_edit,	NV_NCH,			0},
341     {'j',	nv_down,	0,			FALSE},
342     {'k',	nv_up,		0,			FALSE},
343     {'l',	nv_right,	NV_RL,			0},
344     {'m',	nv_mark,	NV_NCH_NOP,		0},
345     {'n',	nv_next,	0,			0},
346     {'o',	nv_open,	0,			0},
347     {'p',	nv_put,		0,			0},
348     {'q',	nv_record,	NV_NCH,			0},
349     {'r',	nv_replace,	NV_NCH_NOP|NV_LANG,	0},
350     {'s',	nv_subst,	NV_KEEPREG,		0},
351     {'t',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
352     {'u',	nv_undo,	0,			0},
353     {'w',	nv_wordcmd,	0,			FALSE},
354     {'x',	nv_abbrev,	NV_KEEPREG,		0},
355     {'y',	nv_operator,	0,			0},
356     {'z',	nv_zet,		NV_NCH_ALW,		0},
357     {'{',	nv_findpar,	0,			BACKWARD},
358     {'|',	nv_pipe,	0,			0},
359     {'}',	nv_findpar,	0,			FORWARD},
360     {'~',	nv_tilde,	0,			0},
361 
362     /* pound sign */
363     {POUND,	nv_ident,	0,			0},
364 #ifdef FEAT_MOUSE
365     {K_MOUSEUP, nv_mousescroll,	0,			TRUE},
366     {K_MOUSEDOWN, nv_mousescroll, 0,			FALSE},
367     {K_LEFTMOUSE, nv_mouse,	0,			0},
368     {K_LEFTMOUSE_NM, nv_mouse,	0,			0},
369     {K_LEFTDRAG, nv_mouse,	0,			0},
370     {K_LEFTRELEASE, nv_mouse,	0,			0},
371     {K_LEFTRELEASE_NM, nv_mouse, 0,			0},
372     {K_MIDDLEMOUSE, nv_mouse,	0,			0},
373     {K_MIDDLEDRAG, nv_mouse,	0,			0},
374     {K_MIDDLERELEASE, nv_mouse,	0,			0},
375     {K_RIGHTMOUSE, nv_mouse,	0,			0},
376     {K_RIGHTDRAG, nv_mouse,	0,			0},
377     {K_RIGHTRELEASE, nv_mouse,	0,			0},
378     {K_X1MOUSE, nv_mouse,	0,			0},
379     {K_X1DRAG, nv_mouse,	0,			0},
380     {K_X1RELEASE, nv_mouse,	0,			0},
381     {K_X2MOUSE, nv_mouse,	0,			0},
382     {K_X2DRAG, nv_mouse,	0,			0},
383     {K_X2RELEASE, nv_mouse,	0,			0},
384 #endif
385     {K_IGNORE,	nv_ignore,	NV_KEEPREG,		0},
386     {K_NOP,	nv_nop,		0,			0},
387     {K_INS,	nv_edit,	0,			0},
388     {K_KINS,	nv_edit,	0,			0},
389     {K_BS,	nv_ctrlh,	0,			0},
390     {K_UP,	nv_up,		NV_SSS|NV_STS,		FALSE},
391     {K_S_UP,	nv_page,	NV_SS,			BACKWARD},
392     {K_DOWN,	nv_down,	NV_SSS|NV_STS,		FALSE},
393     {K_S_DOWN,	nv_page,	NV_SS,			FORWARD},
394     {K_LEFT,	nv_left,	NV_SSS|NV_STS|NV_RL,	0},
395     {K_S_LEFT,	nv_bck_word,	NV_SS|NV_RL,		0},
396     {K_C_LEFT,	nv_bck_word,	NV_SSS|NV_RL|NV_STS,	1},
397     {K_RIGHT,	nv_right,	NV_SSS|NV_STS|NV_RL,	0},
398     {K_S_RIGHT,	nv_wordcmd,	NV_SS|NV_RL,		FALSE},
399     {K_C_RIGHT,	nv_wordcmd,	NV_SSS|NV_RL|NV_STS,	TRUE},
400     {K_PAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
401     {K_KPAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
402     {K_PAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
403     {K_KPAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
404     {K_END,	nv_end,		NV_SSS|NV_STS,		FALSE},
405     {K_KEND,	nv_end,		NV_SSS|NV_STS,		FALSE},
406     {K_S_END,	nv_end,		NV_SS,			FALSE},
407     {K_C_END,	nv_end,		NV_SSS|NV_STS,		TRUE},
408     {K_HOME,	nv_home,	NV_SSS|NV_STS,		0},
409     {K_KHOME,	nv_home,	NV_SSS|NV_STS,		0},
410     {K_S_HOME,	nv_home,	NV_SS,			0},
411     {K_C_HOME,	nv_goto,	NV_SSS|NV_STS,		FALSE},
412     {K_DEL,	nv_abbrev,	0,			0},
413     {K_KDEL,	nv_abbrev,	0,			0},
414     {K_UNDO,	nv_kundo,	0,			0},
415     {K_HELP,	nv_help,	NV_NCW,			0},
416     {K_F1,	nv_help,	NV_NCW,			0},
417     {K_XF1,	nv_help,	NV_NCW,			0},
418 #ifdef FEAT_VISUAL
419     {K_SELECT,	nv_select,	0,			0},
420 #endif
421 #ifdef FEAT_GUI
422     {K_VER_SCROLLBAR, nv_ver_scrollbar, 0,		0},
423     {K_HOR_SCROLLBAR, nv_hor_scrollbar, 0,		0},
424 #endif
425 #ifdef FEAT_GUI_TABLINE
426     {K_TABLINE, nv_tabline,	0,			0},
427     {K_TABMENU, nv_tabmenu,	0,			0},
428 #endif
429 #ifdef FEAT_FKMAP
430     {K_F8,	farsi_fkey,	0,			0},
431     {K_F9,	farsi_fkey,	0,			0},
432 #endif
433 #ifdef FEAT_SNIFF
434     {K_SNIFF,	nv_sniff,	0,			0},
435 #endif
436 #ifdef FEAT_NETBEANS_INTG
437     {K_F21,	nv_nbcmd,	NV_NCH_ALW,		0},
438 #endif
439 #ifdef FEAT_DND
440     {K_DROP,	nv_drop,	NV_STS,			0},
441 #endif
442 #ifdef FEAT_AUTOCMD
443     {K_CURSORHOLD, nv_cursorhold, NV_KEEPREG,		0},
444 #endif
445 };
446 
447 /* Number of commands in nv_cmds[]. */
448 #define NV_CMDS_SIZE (sizeof(nv_cmds) / sizeof(struct nv_cmd))
449 
450 /* Sorted index of commands in nv_cmds[]. */
451 static short nv_cmd_idx[NV_CMDS_SIZE];
452 
453 /* The highest index for which
454  * nv_cmds[idx].cmd_char == nv_cmd_idx[nv_cmds[idx].cmd_char] */
455 static int nv_max_linear;
456 
457 /*
458  * Compare functions for qsort() below, that checks the command character
459  * through the index in nv_cmd_idx[].
460  */
461     static int
462 #ifdef __BORLANDC__
463 _RTLENTRYF
464 #endif
465 nv_compare(s1, s2)
466     const void	*s1;
467     const void	*s2;
468 {
469     int		c1, c2;
470 
471     /* The commands are sorted on absolute value. */
472     c1 = nv_cmds[*(const short *)s1].cmd_char;
473     c2 = nv_cmds[*(const short *)s2].cmd_char;
474     if (c1 < 0)
475 	c1 = -c1;
476     if (c2 < 0)
477 	c2 = -c2;
478     return c1 - c2;
479 }
480 
481 /*
482  * Initialize the nv_cmd_idx[] table.
483  */
484     void
485 init_normal_cmds()
486 {
487     int		i;
488 
489     /* Fill the index table with a one to one relation. */
490     for (i = 0; i < NV_CMDS_SIZE; ++i)
491 	nv_cmd_idx[i] = i;
492 
493     /* Sort the commands by the command character.  */
494     qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);
495 
496     /* Find the first entry that can't be indexed by the command character. */
497     for (i = 0; i < NV_CMDS_SIZE; ++i)
498 	if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
499 	    break;
500     nv_max_linear = i - 1;
501 }
502 
503 /*
504  * Search for a command in the commands table.
505  * Returns -1 for invalid command.
506  */
507     static int
508 find_command(cmdchar)
509     int		cmdchar;
510 {
511     int		i;
512     int		idx;
513     int		top, bot;
514     int		c;
515 
516 #ifdef FEAT_MBYTE
517     /* A multi-byte character is never a command. */
518     if (cmdchar >= 0x100)
519 	return -1;
520 #endif
521 
522     /* We use the absolute value of the character.  Special keys have a
523      * negative value, but are sorted on their absolute value. */
524     if (cmdchar < 0)
525 	cmdchar = -cmdchar;
526 
527     /* If the character is in the first part: The character is the index into
528      * nv_cmd_idx[]. */
529     if (cmdchar <= nv_max_linear)
530 	return nv_cmd_idx[cmdchar];
531 
532     /* Perform a binary search. */
533     bot = nv_max_linear + 1;
534     top = NV_CMDS_SIZE - 1;
535     idx = -1;
536     while (bot <= top)
537     {
538 	i = (top + bot) / 2;
539 	c = nv_cmds[nv_cmd_idx[i]].cmd_char;
540 	if (c < 0)
541 	    c = -c;
542 	if (cmdchar == c)
543 	{
544 	    idx = nv_cmd_idx[i];
545 	    break;
546 	}
547 	if (cmdchar > c)
548 	    bot = i + 1;
549 	else
550 	    top = i - 1;
551     }
552     return idx;
553 }
554 
555 /*
556  * Execute a command in Normal mode.
557  */
558 /*ARGSUSED*/
559     void
560 normal_cmd(oap, toplevel)
561     oparg_T	*oap;
562     int		toplevel;		/* TRUE when called from main() */
563 {
564     static long	opcount = 0;		/* ca.opcount saved here */
565     cmdarg_T	ca;			/* command arguments */
566     int		c;
567     int		ctrl_w = FALSE;		/* got CTRL-W command */
568     int		old_col = curwin->w_curswant;
569 #ifdef FEAT_CMDL_INFO
570     int		need_flushbuf;		/* need to call out_flush() */
571 #endif
572 #ifdef FEAT_VISUAL
573     pos_T	old_pos;		/* cursor position before command */
574     int		mapped_len;
575     static int	old_mapped_len = 0;
576 #endif
577     int		idx;
578 
579     vim_memset(&ca, 0, sizeof(ca));	/* also resets ca.retval */
580     ca.oap = oap;
581     ca.opcount = opcount;
582 
583 #ifdef FEAT_SNIFF
584     want_sniff_request = sniff_connected;
585 #endif
586 
587     /*
588      * If there is an operator pending, then the command we take this time
589      * will terminate it. Finish_op tells us to finish the operation before
590      * returning this time (unless the operation was cancelled).
591      */
592 #ifdef CURSOR_SHAPE
593     c = finish_op;
594 #endif
595     finish_op = (oap->op_type != OP_NOP);
596 #ifdef CURSOR_SHAPE
597     if (finish_op != c)
598     {
599 	ui_cursor_shape();		/* may show different cursor shape */
600 # ifdef FEAT_MOUSESHAPE
601 	update_mouseshape(-1);
602 # endif
603     }
604 #endif
605 
606     if (!finish_op && !oap->regname)
607 	ca.opcount = 0;
608 
609 #ifdef FEAT_VISUAL
610     mapped_len = typebuf_maplen();
611 #endif
612 
613     State = NORMAL_BUSY;
614 #ifdef USE_ON_FLY_SCROLL
615     dont_scroll = FALSE;	/* allow scrolling here */
616 #endif
617 
618     /*
619      * Get the command character from the user.
620      */
621     c = safe_vgetc();
622 
623 #ifdef FEAT_LANGMAP
624     LANGMAP_ADJUST(c, TRUE);
625 #endif
626 
627 #ifdef FEAT_VISUAL
628     /*
629      * If a mapping was started in Visual or Select mode, remember the length
630      * of the mapping.  This is used below to not return to Insert mode for as
631      * long as the mapping is being executed.
632      */
633     if (restart_edit == 0)
634 	old_mapped_len = 0;
635     else if (old_mapped_len
636 		|| (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0))
637 	old_mapped_len = typebuf_maplen();
638 #endif
639 
640     if (c == NUL)
641 	c = K_ZERO;
642 
643 #ifdef FEAT_VISUAL
644     /*
645      * In Select mode, typed text replaces the selection.
646      */
647     if (VIsual_active
648 	    && VIsual_select
649 	    && (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
650     {
651 # ifdef FEAT_MBYTE
652 	char_u	    buf[MB_MAXBYTES + 1];
653 
654 	buf[(*mb_char2bytes)(c, buf)] = NUL;
655 # else
656 	char_u	    buf[2];
657 
658 	buf[0] = c;
659 	buf[1] = NUL;
660 # endif
661 	/* Fake a "c"hange command.  When "restart_edit" is set (e.g., because
662 	 * 'insertmode' is set) fake a "d"elete command, Insert mode will
663 	 * restart automatically.
664 	 * Insert the typed character in the typeahead buffer, so that it will
665 	 * be mapped in Insert mode.  Required for ":lmap" to work.  May cause
666 	 * mapping a character from ":vnoremap"... */
667 	(void)ins_typebuf(buf, REMAP_YES, 0, !KeyTyped, FALSE);
668 	if (restart_edit != 0)
669 	    c = 'd';
670 	else
671 	    c = 'c';
672 	msg_nowait = TRUE;	/* don't delay going to insert mode */
673     }
674 #endif
675 
676 #ifdef FEAT_CMDL_INFO
677     need_flushbuf = add_to_showcmd(c);
678 #endif
679 
680 getcount:
681 #ifdef FEAT_VISUAL
682     if (!(VIsual_active && VIsual_select))
683 #endif
684     {
685 	/*
686 	 * Handle a count before a command and compute ca.count0.
687 	 * Note that '0' is a command and not the start of a count, but it's
688 	 * part of a count after other digits.
689 	 */
690 	while (    (c >= '1' && c <= '9')
691 		|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
692 	{
693 	    if (c == K_DEL || c == K_KDEL)
694 	    {
695 		ca.count0 /= 10;
696 #ifdef FEAT_CMDL_INFO
697 		del_from_showcmd(4);	/* delete the digit and ~@% */
698 #endif
699 	    }
700 	    else
701 		ca.count0 = ca.count0 * 10 + (c - '0');
702 	    if (ca.count0 < 0)	    /* got too large! */
703 		ca.count0 = 999999999L;
704 	    if (ctrl_w)
705 	    {
706 		++no_mapping;
707 		++allow_keys;		/* no mapping for nchar, but keys */
708 	    }
709 	    ++no_zero_mapping;		/* don't map zero here */
710 	    c = safe_vgetc();
711 #ifdef FEAT_LANGMAP
712 	    LANGMAP_ADJUST(c, TRUE);
713 #endif
714 	    --no_zero_mapping;
715 	    if (ctrl_w)
716 	    {
717 		--no_mapping;
718 		--allow_keys;
719 	    }
720 #ifdef FEAT_CMDL_INFO
721 	    need_flushbuf |= add_to_showcmd(c);
722 #endif
723 	}
724 
725 	/*
726 	 * If we got CTRL-W there may be a/another count
727 	 */
728 	if (c == Ctrl_W && !ctrl_w && oap->op_type == OP_NOP)
729 	{
730 	    ctrl_w = TRUE;
731 	    ca.opcount = ca.count0;	/* remember first count */
732 	    ca.count0 = 0;
733 	    ++no_mapping;
734 	    ++allow_keys;		/* no mapping for nchar, but keys */
735 	    c = safe_vgetc();		/* get next character */
736 #ifdef FEAT_LANGMAP
737 	    LANGMAP_ADJUST(c, TRUE);
738 #endif
739 	    --no_mapping;
740 	    --allow_keys;
741 #ifdef FEAT_CMDL_INFO
742 	    need_flushbuf |= add_to_showcmd(c);
743 #endif
744 	    goto getcount;		/* jump back */
745 	}
746     }
747 
748     /*
749      * If we're in the middle of an operator (including after entering a yank
750      * buffer with '"') AND we had a count before the operator, then that
751      * count overrides the current value of ca.count0.
752      * What this means effectively, is that commands like "3dw" get turned
753      * into "d3w" which makes things fall into place pretty neatly.
754      * If you give a count before AND after the operator, they are multiplied.
755      */
756     if (ca.opcount != 0)
757     {
758 	if (ca.count0)
759 	    ca.count0 *= ca.opcount;
760 	else
761 	    ca.count0 = ca.opcount;
762     }
763 
764     /*
765      * Always remember the count.  It will be set to zero (on the next call,
766      * above) when there is no pending operator.
767      * When called from main(), save the count for use by the "count" built-in
768      * variable.
769      */
770     ca.opcount = ca.count0;
771     ca.count1 = (ca.count0 == 0 ? 1 : ca.count0);
772 
773 #ifdef FEAT_EVAL
774     /*
775      * Only set v:count when called from main() and not a stuffed command.
776      */
777     if (toplevel && stuff_empty())
778 	set_vcount(ca.count0, ca.count1);
779 #endif
780 
781     /*
782      * Find the command character in the table of commands.
783      * For CTRL-W we already got nchar when looking for a count.
784      */
785     if (ctrl_w)
786     {
787 	ca.nchar = c;
788 	ca.cmdchar = Ctrl_W;
789     }
790     else
791 	ca.cmdchar = c;
792     idx = find_command(ca.cmdchar);
793     if (idx < 0)
794     {
795 	/* Not a known command: beep. */
796 	clearopbeep(oap);
797 	goto normal_end;
798     }
799 
800     if (text_locked() && (nv_cmds[idx].cmd_flags & NV_NCW))
801     {
802 	/* This command is not allowed wile editing a ccmdline: beep. */
803 	clearopbeep(oap);
804 	text_locked_msg();
805 	goto normal_end;
806     }
807 #ifdef FEAT_AUTOCMD
808     if ((nv_cmds[idx].cmd_flags & NV_NCW) && curbuf_locked())
809 	goto normal_end;
810 #endif
811 
812 #ifdef FEAT_VISUAL
813     /*
814      * In Visual/Select mode, a few keys are handled in a special way.
815      */
816     if (VIsual_active)
817     {
818 	/* when 'keymodel' contains "stopsel" may stop Select/Visual mode */
819 	if (km_stopsel
820 		&& (nv_cmds[idx].cmd_flags & NV_STS)
821 		&& !(mod_mask & MOD_MASK_SHIFT))
822 	{
823 	    end_visual_mode();
824 	    redraw_curbuf_later(INVERTED);
825 	}
826 
827 	/* Keys that work different when 'keymodel' contains "startsel" */
828 	if (km_startsel)
829 	{
830 	    if (nv_cmds[idx].cmd_flags & NV_SS)
831 	    {
832 		unshift_special(&ca);
833 		idx = find_command(ca.cmdchar);
834 		if (idx < 0)
835 		{
836 		    /* Just in case */
837 		    clearopbeep(oap);
838 		    goto normal_end;
839 		}
840 	    }
841 	    else if ((nv_cmds[idx].cmd_flags & NV_SSS)
842 					       && (mod_mask & MOD_MASK_SHIFT))
843 	    {
844 		mod_mask &= ~MOD_MASK_SHIFT;
845 	    }
846 	}
847     }
848 #endif
849 
850 #ifdef FEAT_RIGHTLEFT
851     if (curwin->w_p_rl && KeyTyped && !KeyStuffed
852 					  && (nv_cmds[idx].cmd_flags & NV_RL))
853     {
854 	/* Invert horizontal movements and operations.  Only when typed by the
855 	 * user directly, not when the result of a mapping or "x" translated
856 	 * to "dl". */
857 	switch (ca.cmdchar)
858 	{
859 	    case 'l':	    ca.cmdchar = 'h'; break;
860 	    case K_RIGHT:   ca.cmdchar = K_LEFT; break;
861 	    case K_S_RIGHT: ca.cmdchar = K_S_LEFT; break;
862 	    case K_C_RIGHT: ca.cmdchar = K_C_LEFT; break;
863 	    case 'h':	    ca.cmdchar = 'l'; break;
864 	    case K_LEFT:    ca.cmdchar = K_RIGHT; break;
865 	    case K_S_LEFT:  ca.cmdchar = K_S_RIGHT; break;
866 	    case K_C_LEFT:  ca.cmdchar = K_C_RIGHT; break;
867 	    case '>':	    ca.cmdchar = '<'; break;
868 	    case '<':	    ca.cmdchar = '>'; break;
869 	}
870 	idx = find_command(ca.cmdchar);
871     }
872 #endif
873 
874     /*
875      * Get an additional character if we need one.
876      */
877     if ((nv_cmds[idx].cmd_flags & NV_NCH)
878 	    && (((nv_cmds[idx].cmd_flags & NV_NCH_NOP) == NV_NCH_NOP
879 		    && oap->op_type == OP_NOP)
880 		|| (nv_cmds[idx].cmd_flags & NV_NCH_ALW) == NV_NCH_ALW
881 		|| (ca.cmdchar == 'q'
882 		    && oap->op_type == OP_NOP
883 		    && !Recording
884 		    && !Exec_reg)
885 		|| ((ca.cmdchar == 'a' || ca.cmdchar == 'i')
886 		    && (oap->op_type != OP_NOP
887 #ifdef FEAT_VISUAL
888 			|| VIsual_active
889 #endif
890 		       ))))
891     {
892 	int	*cp;
893 	int	repl = FALSE;	/* get character for replace mode */
894 	int	lit = FALSE;	/* get extra character literally */
895 	int	langmap_active = FALSE;    /* using :lmap mappings */
896 	int	lang;		/* getting a text character */
897 #ifdef USE_IM_CONTROL
898 	int	save_smd;	/* saved value of p_smd */
899 #endif
900 
901 	++no_mapping;
902 	++allow_keys;		/* no mapping for nchar, but allow key codes */
903 	if (ca.cmdchar == 'g')
904 	{
905 	    /*
906 	     * For 'g' get the next character now, so that we can check for
907 	     * "gr", "g'" and "g`".
908 	     */
909 	    ca.nchar = safe_vgetc();
910 #ifdef FEAT_LANGMAP
911 	    LANGMAP_ADJUST(ca.nchar, TRUE);
912 #endif
913 #ifdef FEAT_CMDL_INFO
914 	    need_flushbuf |= add_to_showcmd(ca.nchar);
915 #endif
916 	    if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
917 						      || ca.nchar == Ctrl_BSL)
918 	    {
919 		cp = &ca.extra_char;	/* need to get a third character */
920 		if (ca.nchar != 'r')
921 		    lit = TRUE;			/* get it literally */
922 		else
923 		    repl = TRUE;		/* get it in replace mode */
924 	    }
925 	    else
926 		cp = NULL;		/* no third character needed */
927 	}
928 	else
929 	{
930 	    if (ca.cmdchar == 'r')		/* get it in replace mode */
931 		repl = TRUE;
932 	    cp = &ca.nchar;
933 	}
934 	lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));
935 
936 	/*
937 	 * Get a second or third character.
938 	 */
939 	if (cp != NULL)
940 	{
941 #ifdef CURSOR_SHAPE
942 	    if (repl)
943 	    {
944 		State = REPLACE;	/* pretend Replace mode */
945 		ui_cursor_shape();	/* show different cursor shape */
946 	    }
947 #endif
948 	    if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
949 	    {
950 		/* Allow mappings defined with ":lmap". */
951 		--no_mapping;
952 		--allow_keys;
953 		if (repl)
954 		    State = LREPLACE;
955 		else
956 		    State = LANGMAP;
957 		langmap_active = TRUE;
958 	    }
959 #ifdef USE_IM_CONTROL
960 	    save_smd = p_smd;
961 	    p_smd = FALSE;	/* Don't let the IM code show the mode here */
962 	    if (lang && curbuf->b_p_iminsert == B_IMODE_IM)
963 		im_set_active(TRUE);
964 #endif
965 
966 	    *cp = safe_vgetc();
967 
968 	    if (langmap_active)
969 	    {
970 		/* Undo the decrement done above */
971 		++no_mapping;
972 		++allow_keys;
973 		State = NORMAL_BUSY;
974 	    }
975 #ifdef USE_IM_CONTROL
976 	    if (lang)
977 	    {
978 		if (curbuf->b_p_iminsert != B_IMODE_LMAP)
979 		    im_save_status(&curbuf->b_p_iminsert);
980 		im_set_active(FALSE);
981 	    }
982 	    p_smd = save_smd;
983 #endif
984 #ifdef CURSOR_SHAPE
985 	    State = NORMAL_BUSY;
986 #endif
987 #ifdef FEAT_CMDL_INFO
988 	    need_flushbuf |= add_to_showcmd(*cp);
989 #endif
990 
991 	    if (!lit)
992 	    {
993 #ifdef FEAT_DIGRAPHS
994 		/* Typing CTRL-K gets a digraph. */
995 		if (*cp == Ctrl_K
996 			&& ((nv_cmds[idx].cmd_flags & NV_LANG)
997 			    || cp == &ca.extra_char)
998 			&& vim_strchr(p_cpo, CPO_DIGRAPH) == NULL)
999 		{
1000 		    c = get_digraph(FALSE);
1001 		    if (c > 0)
1002 		    {
1003 			*cp = c;
1004 # ifdef FEAT_CMDL_INFO
1005 			/* Guessing how to update showcmd here... */
1006 			del_from_showcmd(3);
1007 			need_flushbuf |= add_to_showcmd(*cp);
1008 # endif
1009 		    }
1010 		}
1011 #endif
1012 
1013 #ifdef FEAT_LANGMAP
1014 		/* adjust chars > 127, except after "tTfFr" commands */
1015 		LANGMAP_ADJUST(*cp, !lang);
1016 #endif
1017 #ifdef FEAT_RIGHTLEFT
1018 		/* adjust Hebrew mapped char */
1019 		if (p_hkmap && lang && KeyTyped)
1020 		    *cp = hkmap(*cp);
1021 # ifdef FEAT_FKMAP
1022 		/* adjust Farsi mapped char */
1023 		if (p_fkmap && lang && KeyTyped)
1024 		    *cp = fkmap(*cp);
1025 # endif
1026 #endif
1027 	    }
1028 
1029 	    /*
1030 	     * When the next character is CTRL-\ a following CTRL-N means the
1031 	     * command is aborted and we go to Normal mode.
1032 	     */
1033 	    if (cp == &ca.extra_char
1034 		    && ca.nchar == Ctrl_BSL
1035 		    && (ca.extra_char == Ctrl_N || ca.extra_char == Ctrl_G))
1036 	    {
1037 		ca.cmdchar = Ctrl_BSL;
1038 		ca.nchar = ca.extra_char;
1039 		idx = find_command(ca.cmdchar);
1040 	    }
1041 	    else if (*cp == Ctrl_BSL)
1042 	    {
1043 		long towait = (p_ttm >= 0 ? p_ttm : p_tm);
1044 
1045 		/* There is a busy wait here when typing "f<C-\>" and then
1046 		 * something different from CTRL-N.  Can't be avoided. */
1047 		while ((c = vpeekc()) <= 0 && towait > 0L)
1048 		{
1049 		    do_sleep(towait > 50L ? 50L : towait);
1050 		    towait -= 50L;
1051 		}
1052 		if (c > 0)
1053 		{
1054 		    c = safe_vgetc();
1055 		    if (c != Ctrl_N && c != Ctrl_G)
1056 			vungetc(c);
1057 		    else
1058 		    {
1059 			ca.cmdchar = Ctrl_BSL;
1060 			ca.nchar = c;
1061 			idx = find_command(ca.cmdchar);
1062 		    }
1063 		}
1064 	    }
1065 
1066 #ifdef FEAT_MBYTE
1067 	    /* When getting a text character and the next character is a
1068 	     * multi-byte character, it could be a composing character.
1069 	     * However, don't wait for it to arrive. */
1070 	    while (enc_utf8 && lang && (c = vpeekc()) > 0
1071 				 && (c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1))
1072 	    {
1073 		c = safe_vgetc();
1074 		if (!utf_iscomposing(c))
1075 		{
1076 		    vungetc(c);		/* it wasn't, put it back */
1077 		    break;
1078 		}
1079 		else if (ca.ncharC1 == 0)
1080 		    ca.ncharC1 = c;
1081 		else
1082 		    ca.ncharC2 = c;
1083 	    }
1084 #endif
1085 	}
1086 	--no_mapping;
1087 	--allow_keys;
1088     }
1089 
1090 #ifdef FEAT_CMDL_INFO
1091     /*
1092      * Flush the showcmd characters onto the screen so we can see them while
1093      * the command is being executed.  Only do this when the shown command was
1094      * actually displayed, otherwise this will slow down a lot when executing
1095      * mappings.
1096      */
1097     if (need_flushbuf)
1098 	out_flush();
1099 #endif
1100 #ifdef FEAT_AUTOCMD
1101     did_cursorhold = FALSE;
1102 #endif
1103 
1104     State = NORMAL;
1105 
1106     if (ca.nchar == ESC)
1107     {
1108 	clearop(oap);
1109 	if (restart_edit == 0 && goto_im())
1110 	    restart_edit = 'a';
1111 	goto normal_end;
1112     }
1113 
1114     if (ca.cmdchar != K_IGNORE)
1115     {
1116 	msg_didout = FALSE;    /* don't scroll screen up for normal command */
1117 	msg_col = 0;
1118     }
1119 
1120 #ifdef FEAT_VISUAL
1121     old_pos = curwin->w_cursor;		/* remember where cursor was */
1122 
1123     /* When 'keymodel' contains "startsel" some keys start Select/Visual
1124      * mode. */
1125     if (!VIsual_active && km_startsel)
1126     {
1127 	if (nv_cmds[idx].cmd_flags & NV_SS)
1128 	{
1129 	    start_selection();
1130 	    unshift_special(&ca);
1131 	    idx = find_command(ca.cmdchar);
1132 	}
1133 	else if ((nv_cmds[idx].cmd_flags & NV_SSS)
1134 					   && (mod_mask & MOD_MASK_SHIFT))
1135 	{
1136 	    start_selection();
1137 	    mod_mask &= ~MOD_MASK_SHIFT;
1138 	}
1139     }
1140 #endif
1141 
1142     /*
1143      * Execute the command!
1144      * Call the command function found in the commands table.
1145      */
1146     ca.arg = nv_cmds[idx].cmd_arg;
1147     (nv_cmds[idx].cmd_func)(&ca);
1148 
1149     /*
1150      * If we didn't start or finish an operator, reset oap->regname, unless we
1151      * need it later.
1152      */
1153     if (!finish_op
1154 	    && !oap->op_type
1155 	    && (idx < 0 || !(nv_cmds[idx].cmd_flags & NV_KEEPREG)))
1156     {
1157 	clearop(oap);
1158 #ifdef FEAT_EVAL
1159 	set_reg_var('"');
1160 #endif
1161     }
1162 
1163 #ifdef FEAT_VISUAL
1164     /* Get the length of mapped chars again after typing a count, second
1165      * character or "z333<cr>". */
1166     if (old_mapped_len > 0)
1167 	old_mapped_len = typebuf_maplen();
1168 #endif
1169 
1170     /*
1171      * If an operation is pending, handle it...
1172      */
1173     do_pending_operator(&ca, old_col, FALSE);
1174 
1175     /*
1176      * Wait for a moment when a message is displayed that will be overwritten
1177      * by the mode message.
1178      * In Visual mode and with "^O" in Insert mode, a short message will be
1179      * overwritten by the mode message.  Wait a bit, until a key is hit.
1180      * In Visual mode, it's more important to keep the Visual area updated
1181      * than keeping a message (e.g. from a /pat search).
1182      * Only do this if the command was typed, not from a mapping.
1183      * Don't wait when emsg_silent is non-zero.
1184      * Also wait a bit after an error message, e.g. for "^O:".
1185      * Don't redraw the screen, it would remove the message.
1186      */
1187     if (       ((p_smd
1188 		    && msg_silent == 0
1189 		    && (restart_edit != 0
1190 #ifdef FEAT_VISUAL
1191 			|| (VIsual_active
1192 			    && old_pos.lnum == curwin->w_cursor.lnum
1193 			    && old_pos.col == curwin->w_cursor.col)
1194 #endif
1195 		       )
1196 		    && (clear_cmdline
1197 			|| redraw_cmdline)
1198 		    && (msg_didout || (msg_didany && msg_scroll))
1199 		    && !msg_nowait
1200 		    && KeyTyped)
1201 		|| (restart_edit != 0
1202 #ifdef FEAT_VISUAL
1203 		    && !VIsual_active
1204 #endif
1205 		    && (msg_scroll
1206 			|| emsg_on_display)))
1207 	    && oap->regname == 0
1208 	    && !(ca.retval & CA_COMMAND_BUSY)
1209 	    && stuff_empty()
1210 	    && typebuf_typed()
1211 	    && emsg_silent == 0
1212 	    && !did_wait_return
1213 	    && oap->op_type == OP_NOP)
1214     {
1215 	int	save_State = State;
1216 
1217 	/* Draw the cursor with the right shape here */
1218 	if (restart_edit != 0)
1219 	    State = INSERT;
1220 
1221 	/* If need to redraw, and there is a "keep_msg", redraw before the
1222 	 * delay */
1223 	if (must_redraw && keep_msg != NULL && !emsg_on_display)
1224 	{
1225 	    char_u	*kmsg;
1226 
1227 	    kmsg = keep_msg;
1228 	    keep_msg = NULL;
1229 	    /* showmode() will clear keep_msg, but we want to use it anyway */
1230 	    update_screen(0);
1231 	    /* now reset it, otherwise it's put in the history again */
1232 	    keep_msg = kmsg;
1233 	    msg_attr(kmsg, keep_msg_attr);
1234 	    vim_free(kmsg);
1235 	}
1236 	setcursor();
1237 	cursor_on();
1238 	out_flush();
1239 	if (msg_scroll || emsg_on_display)
1240 	    ui_delay(1000L, TRUE);	/* wait at least one second */
1241 	ui_delay(3000L, FALSE);		/* wait up to three seconds */
1242 	State = save_State;
1243 
1244 	msg_scroll = FALSE;
1245 	emsg_on_display = FALSE;
1246     }
1247 
1248     /*
1249      * Finish up after executing a Normal mode command.
1250      */
1251 normal_end:
1252 
1253     msg_nowait = FALSE;
1254 
1255     /* Reset finish_op, in case it was set */
1256 #ifdef CURSOR_SHAPE
1257     c = finish_op;
1258 #endif
1259     finish_op = FALSE;
1260 #ifdef CURSOR_SHAPE
1261     /* Redraw the cursor with another shape, if we were in Operator-pending
1262      * mode or did a replace command. */
1263     if (c || ca.cmdchar == 'r')
1264     {
1265 	ui_cursor_shape();		/* may show different cursor shape */
1266 # ifdef FEAT_MOUSESHAPE
1267 	update_mouseshape(-1);
1268 # endif
1269     }
1270 #endif
1271 
1272 #ifdef FEAT_CMDL_INFO
1273     if (oap->op_type == OP_NOP && oap->regname == 0)
1274 	clear_showcmd();
1275 #endif
1276 
1277     checkpcmark();		/* check if we moved since setting pcmark */
1278     vim_free(ca.searchbuf);
1279 
1280 #ifdef FEAT_MBYTE
1281     if (has_mbyte)
1282 	mb_adjust_cursor();
1283 #endif
1284 
1285 #ifdef FEAT_SCROLLBIND
1286     if (curwin->w_p_scb && toplevel)
1287     {
1288 	validate_cursor();	/* may need to update w_leftcol */
1289 	do_check_scrollbind(TRUE);
1290     }
1291 #endif
1292 
1293     /*
1294      * May restart edit(), if we got here with CTRL-O in Insert mode (but not
1295      * if still inside a mapping that started in Visual mode).
1296      * May switch from Visual to Select mode after CTRL-O command.
1297      */
1298     if (       oap->op_type == OP_NOP
1299 #ifdef FEAT_VISUAL
1300 	    && ((restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1301 		|| restart_VIsual_select == 1)
1302 #else
1303 	    && restart_edit != 0
1304 #endif
1305 	    && !(ca.retval & CA_COMMAND_BUSY)
1306 	    && stuff_empty()
1307 	    && oap->regname == 0)
1308     {
1309 #ifdef FEAT_VISUAL
1310 	if (restart_VIsual_select == 1)
1311 	{
1312 	    VIsual_select = TRUE;
1313 	    showmode();
1314 	    restart_VIsual_select = 0;
1315 	}
1316 #endif
1317 	if (restart_edit != 0
1318 #ifdef FEAT_VISUAL
1319 		&& !VIsual_active && old_mapped_len == 0
1320 #endif
1321 		)
1322 	    (void)edit(restart_edit, FALSE, 1L);
1323     }
1324 
1325 #ifdef FEAT_VISUAL
1326     if (restart_VIsual_select == 2)
1327 	restart_VIsual_select = 1;
1328 #endif
1329 
1330     /* Save count before an operator for next time. */
1331     opcount = ca.opcount;
1332 }
1333 
1334 /*
1335  * Handle an operator after visual mode or when the movement is finished
1336  */
1337     void
1338 do_pending_operator(cap, old_col, gui_yank)
1339     cmdarg_T	*cap;
1340     int		old_col;
1341     int		gui_yank;
1342 {
1343     oparg_T	*oap = cap->oap;
1344     pos_T	old_cursor;
1345     int		empty_region_error;
1346     int		restart_edit_save;
1347 
1348 #ifdef FEAT_VISUAL
1349     /* The visual area is remembered for redo */
1350     static int	    redo_VIsual_mode = NUL; /* 'v', 'V', or Ctrl-V */
1351     static linenr_T redo_VIsual_line_count; /* number of lines */
1352     static colnr_T  redo_VIsual_col;	    /* number of cols or end column */
1353     static long	    redo_VIsual_count;	    /* count for Visual operator */
1354 # ifdef FEAT_VIRTUALEDIT
1355     int		    include_line_break = FALSE;
1356 # endif
1357 #endif
1358 
1359 #if defined(FEAT_CLIPBOARD)
1360     /*
1361      * Yank the visual area into the GUI selection register before we operate
1362      * on it and lose it forever.
1363      * Don't do it if a specific register was specified, so that ""x"*P works.
1364      * This could call do_pending_operator() recursively, but that's OK
1365      * because gui_yank will be TRUE for the nested call.
1366      */
1367     if (clip_star.available
1368 	    && oap->op_type != OP_NOP
1369 	    && !gui_yank
1370 # ifdef FEAT_VISUAL
1371 	    && VIsual_active
1372 	    && !redo_VIsual_busy
1373 # endif
1374 	    && oap->regname == 0)
1375 	clip_auto_select();
1376 #endif
1377     old_cursor = curwin->w_cursor;
1378 
1379     /*
1380      * If an operation is pending, handle it...
1381      */
1382     if ((finish_op
1383 #ifdef FEAT_VISUAL
1384 		|| VIsual_active
1385 #endif
1386 		) && oap->op_type != OP_NOP)
1387     {
1388 #ifdef FEAT_VISUAL
1389 	oap->is_VIsual = VIsual_active;
1390 	if (oap->motion_force == 'V')
1391 	    oap->motion_type = MLINE;
1392 	else if (oap->motion_force == 'v')
1393 	{
1394 	    /* If the motion was linewise, "inclusive" will not have been set.
1395 	     * Use "exclusive" to be consistent.  Makes "dvj" work nice. */
1396 	    if (oap->motion_type == MLINE)
1397 		oap->inclusive = FALSE;
1398 	    /* If the motion already was characterwise, toggle "inclusive" */
1399 	    else if (oap->motion_type == MCHAR)
1400 		oap->inclusive = !oap->inclusive;
1401 	    oap->motion_type = MCHAR;
1402 	}
1403 	else if (oap->motion_force == Ctrl_V)
1404 	{
1405 	    /* Change line- or characterwise motion into Visual block mode. */
1406 	    VIsual_active = TRUE;
1407 	    VIsual = oap->start;
1408 	    VIsual_mode = Ctrl_V;
1409 	    VIsual_select = FALSE;
1410 	    VIsual_reselect = FALSE;
1411 	}
1412 #endif
1413 
1414 	/* only redo yank when 'y' flag is in 'cpoptions' */
1415 	/* never redo "zf" (define fold) */
1416 	if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1417 #ifdef FEAT_VISUAL
1418 		&& (!VIsual_active || oap->motion_force)
1419 #endif
1420 		&& cap->cmdchar != 'D'
1421 #ifdef FEAT_FOLDING
1422 		&& oap->op_type != OP_FOLD
1423 		&& oap->op_type != OP_FOLDOPEN
1424 		&& oap->op_type != OP_FOLDOPENREC
1425 		&& oap->op_type != OP_FOLDCLOSE
1426 		&& oap->op_type != OP_FOLDCLOSEREC
1427 		&& oap->op_type != OP_FOLDDEL
1428 		&& oap->op_type != OP_FOLDDELREC
1429 #endif
1430 		)
1431 	{
1432 	    prep_redo(oap->regname, cap->count0,
1433 		    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1434 		    oap->motion_force, cap->cmdchar, cap->nchar);
1435 	    if (cap->cmdchar == '/' || cap->cmdchar == '?') /* was a search */
1436 	    {
1437 		/*
1438 		 * If 'cpoptions' does not contain 'r', insert the search
1439 		 * pattern to really repeat the same command.
1440 		 */
1441 		if (vim_strchr(p_cpo, CPO_REDO) == NULL)
1442 		    AppendToRedobuffLit(cap->searchbuf, -1);
1443 		AppendToRedobuff(NL_STR);
1444 	    }
1445 	    else if (cap->cmdchar == ':')
1446 	    {
1447 		/* do_cmdline() has stored the first typed line in
1448 		 * "repeat_cmdline".  When several lines are typed repeating
1449 		 * won't be possible. */
1450 		if (repeat_cmdline == NULL)
1451 		    ResetRedobuff();
1452 		else
1453 		{
1454 		    AppendToRedobuffLit(repeat_cmdline, -1);
1455 		    AppendToRedobuff(NL_STR);
1456 		    vim_free(repeat_cmdline);
1457 		    repeat_cmdline = NULL;
1458 		}
1459 	    }
1460 	}
1461 
1462 #ifdef FEAT_VISUAL
1463 	if (redo_VIsual_busy)
1464 	{
1465 	    oap->start = curwin->w_cursor;
1466 	    curwin->w_cursor.lnum += redo_VIsual_line_count - 1;
1467 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1468 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1469 	    VIsual_mode = redo_VIsual_mode;
1470 	    if (VIsual_mode == 'v')
1471 	    {
1472 		if (redo_VIsual_line_count <= 1)
1473 		    curwin->w_cursor.col += redo_VIsual_col - 1;
1474 		else
1475 		    curwin->w_cursor.col = redo_VIsual_col;
1476 	    }
1477 	    if (redo_VIsual_col == MAXCOL)
1478 	    {
1479 		curwin->w_curswant = MAXCOL;
1480 		coladvance((colnr_T)MAXCOL);
1481 	    }
1482 	    cap->count0 = redo_VIsual_count;
1483 	    if (redo_VIsual_count != 0)
1484 		cap->count1 = redo_VIsual_count;
1485 	    else
1486 		cap->count1 = 1;
1487 	}
1488 	else if (VIsual_active)
1489 	{
1490 	    /* Save the current VIsual area for '< and '> marks, and "gv" */
1491 	    curbuf->b_visual.vi_start = VIsual;
1492 	    curbuf->b_visual.vi_end = curwin->w_cursor;
1493 	    curbuf->b_visual.vi_mode = VIsual_mode;
1494 	    curbuf->b_visual.vi_curswant = curwin->w_curswant;
1495 # ifdef FEAT_EVAL
1496 	    curbuf->b_visual_mode_eval = VIsual_mode;
1497 # endif
1498 
1499 	    /* In Select mode, a linewise selection is operated upon like a
1500 	     * characterwise selection. */
1501 	    if (VIsual_select && VIsual_mode == 'V')
1502 	    {
1503 		if (lt(VIsual, curwin->w_cursor))
1504 		{
1505 		    VIsual.col = 0;
1506 		    curwin->w_cursor.col =
1507 			       (colnr_T)STRLEN(ml_get(curwin->w_cursor.lnum));
1508 		}
1509 		else
1510 		{
1511 		    curwin->w_cursor.col = 0;
1512 		    VIsual.col = (colnr_T)STRLEN(ml_get(VIsual.lnum));
1513 		}
1514 		VIsual_mode = 'v';
1515 	    }
1516 	    /* If 'selection' is "exclusive", backup one character for
1517 	     * charwise selections. */
1518 	    else if (VIsual_mode == 'v')
1519 	    {
1520 # ifdef FEAT_VIRTUALEDIT
1521 		include_line_break =
1522 # endif
1523 		    unadjust_for_sel();
1524 	    }
1525 
1526 	    oap->start = VIsual;
1527 	    if (VIsual_mode == 'V')
1528 		oap->start.col = 0;
1529 	}
1530 #endif /* FEAT_VISUAL */
1531 
1532 	/*
1533 	 * Set oap->start to the first position of the operated text, oap->end
1534 	 * to the end of the operated text.  w_cursor is equal to oap->start.
1535 	 */
1536 	if (lt(oap->start, curwin->w_cursor))
1537 	{
1538 #ifdef FEAT_FOLDING
1539 	    /* Include folded lines completely. */
1540 	    if (!VIsual_active)
1541 	    {
1542 		if (hasFolding(oap->start.lnum, &oap->start.lnum, NULL))
1543 		    oap->start.col = 0;
1544 		if (hasFolding(curwin->w_cursor.lnum, NULL,
1545 						      &curwin->w_cursor.lnum))
1546 		    curwin->w_cursor.col = (colnr_T)STRLEN(ml_get_curline());
1547 	    }
1548 #endif
1549 	    oap->end = curwin->w_cursor;
1550 	    curwin->w_cursor = oap->start;
1551 
1552 	    /* w_virtcol may have been updated; if the cursor goes back to its
1553 	     * previous position w_virtcol becomes invalid and isn't updated
1554 	     * automatically. */
1555 	    curwin->w_valid &= ~VALID_VIRTCOL;
1556 	}
1557 	else
1558 	{
1559 #ifdef FEAT_FOLDING
1560 	    /* Include folded lines completely. */
1561 	    if (!VIsual_active && oap->motion_type == MLINE)
1562 	    {
1563 		if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum,
1564 									NULL))
1565 		    curwin->w_cursor.col = 0;
1566 		if (hasFolding(oap->start.lnum, NULL, &oap->start.lnum))
1567 		    oap->start.col = (colnr_T)STRLEN(ml_get(oap->start.lnum));
1568 	    }
1569 #endif
1570 	    oap->end = oap->start;
1571 	    oap->start = curwin->w_cursor;
1572 	}
1573 
1574 	oap->line_count = oap->end.lnum - oap->start.lnum + 1;
1575 
1576 #ifdef FEAT_VIRTUALEDIT
1577 	/* Set "virtual_op" before resetting VIsual_active. */
1578 	virtual_op = virtual_active();
1579 #endif
1580 
1581 #ifdef FEAT_VISUAL
1582 	if (VIsual_active || redo_VIsual_busy)
1583 	{
1584 	    if (VIsual_mode == Ctrl_V)	/* block mode */
1585 	    {
1586 		colnr_T	    start, end;
1587 
1588 		oap->block_mode = TRUE;
1589 
1590 		getvvcol(curwin, &(oap->start),
1591 				      &oap->start_vcol, NULL, &oap->end_vcol);
1592 		if (!redo_VIsual_busy)
1593 		{
1594 		    getvvcol(curwin, &(oap->end), &start, NULL, &end);
1595 
1596 		    if (start < oap->start_vcol)
1597 			oap->start_vcol = start;
1598 		    if (end > oap->end_vcol)
1599 		    {
1600 			if (*p_sel == 'e' && start >= 1
1601 						&& start - 1 >= oap->end_vcol)
1602 			    oap->end_vcol = start - 1;
1603 			else
1604 			    oap->end_vcol = end;
1605 		    }
1606 		}
1607 
1608 		/* if '$' was used, get oap->end_vcol from longest line */
1609 		if (curwin->w_curswant == MAXCOL)
1610 		{
1611 		    curwin->w_cursor.col = MAXCOL;
1612 		    oap->end_vcol = 0;
1613 		    for (curwin->w_cursor.lnum = oap->start.lnum;
1614 			    curwin->w_cursor.lnum <= oap->end.lnum;
1615 						      ++curwin->w_cursor.lnum)
1616 		    {
1617 			getvvcol(curwin, &curwin->w_cursor, NULL, NULL, &end);
1618 			if (end > oap->end_vcol)
1619 			    oap->end_vcol = end;
1620 		    }
1621 		}
1622 		else if (redo_VIsual_busy)
1623 		    oap->end_vcol = oap->start_vcol + redo_VIsual_col - 1;
1624 		/*
1625 		 * Correct oap->end.col and oap->start.col to be the
1626 		 * upper-left and lower-right corner of the block area.
1627 		 *
1628 		 * (Actually, this does convert column positions into character
1629 		 * positions)
1630 		 */
1631 		curwin->w_cursor.lnum = oap->end.lnum;
1632 		coladvance(oap->end_vcol);
1633 		oap->end = curwin->w_cursor;
1634 
1635 		curwin->w_cursor = oap->start;
1636 		coladvance(oap->start_vcol);
1637 		oap->start = curwin->w_cursor;
1638 	    }
1639 
1640 	    if (!redo_VIsual_busy && !gui_yank)
1641 	    {
1642 		/*
1643 		 * Prepare to reselect and redo Visual: this is based on the
1644 		 * size of the Visual text
1645 		 */
1646 		resel_VIsual_mode = VIsual_mode;
1647 		if (curwin->w_curswant == MAXCOL)
1648 		    resel_VIsual_col = MAXCOL;
1649 		else if (VIsual_mode == Ctrl_V)
1650 		    resel_VIsual_col = oap->end_vcol - oap->start_vcol + 1;
1651 		else if (oap->line_count > 1)
1652 		    resel_VIsual_col = oap->end.col;
1653 		else
1654 		    resel_VIsual_col = oap->end.col - oap->start.col + 1;
1655 		resel_VIsual_line_count = oap->line_count;
1656 	    }
1657 
1658 	    /* can't redo yank (unless 'y' is in 'cpoptions') and ":" */
1659 	    if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1660 		    && oap->op_type != OP_COLON
1661 #ifdef FEAT_FOLDING
1662 		    && oap->op_type != OP_FOLD
1663 		    && oap->op_type != OP_FOLDOPEN
1664 		    && oap->op_type != OP_FOLDOPENREC
1665 		    && oap->op_type != OP_FOLDCLOSE
1666 		    && oap->op_type != OP_FOLDCLOSEREC
1667 		    && oap->op_type != OP_FOLDDEL
1668 		    && oap->op_type != OP_FOLDDELREC
1669 #endif
1670 		    && oap->motion_force == NUL
1671 		    )
1672 	    {
1673 		/* Prepare for redoing.  Only use the nchar field for "r",
1674 		 * otherwise it might be the second char of the operator. */
1675 		prep_redo(oap->regname, 0L, NUL, 'v',
1676 				get_op_char(oap->op_type),
1677 				get_extra_op_char(oap->op_type),
1678 				oap->op_type == OP_REPLACE ? cap->nchar : NUL);
1679 		if (!redo_VIsual_busy)
1680 		{
1681 		    redo_VIsual_mode = resel_VIsual_mode;
1682 		    redo_VIsual_col = resel_VIsual_col;
1683 		    redo_VIsual_line_count = resel_VIsual_line_count;
1684 		    redo_VIsual_count = cap->count0;
1685 		}
1686 	    }
1687 
1688 	    /*
1689 	     * oap->inclusive defaults to TRUE.
1690 	     * If oap->end is on a NUL (empty line) oap->inclusive becomes
1691 	     * FALSE.  This makes "d}P" and "v}dP" work the same.
1692 	     */
1693 	    if (oap->motion_force == NUL || oap->motion_type == MLINE)
1694 		oap->inclusive = TRUE;
1695 	    if (VIsual_mode == 'V')
1696 		oap->motion_type = MLINE;
1697 	    else
1698 	    {
1699 		oap->motion_type = MCHAR;
1700 		if (VIsual_mode != Ctrl_V && *ml_get_pos(&(oap->end)) == NUL
1701 # ifdef FEAT_VIRTUALEDIT
1702 			&& (include_line_break || !virtual_op)
1703 # endif
1704 			)
1705 		{
1706 		    oap->inclusive = FALSE;
1707 		    /* Try to include the newline, unless it's an operator
1708 		     * that works on lines only */
1709 		    if (*p_sel != 'o'
1710 			    && !op_on_lines(oap->op_type)
1711 			    && oap->end.lnum < curbuf->b_ml.ml_line_count)
1712 		    {
1713 			++oap->end.lnum;
1714 			oap->end.col = 0;
1715 # ifdef FEAT_VIRTUALEDIT
1716 			oap->end.coladd = 0;
1717 # endif
1718 			++oap->line_count;
1719 		    }
1720 		}
1721 	    }
1722 
1723 	    redo_VIsual_busy = FALSE;
1724 
1725 	    /*
1726 	     * Switch Visual off now, so screen updating does
1727 	     * not show inverted text when the screen is redrawn.
1728 	     * With OP_YANK and sometimes with OP_COLON and OP_FILTER there is
1729 	     * no screen redraw, so it is done here to remove the inverted
1730 	     * part.
1731 	     */
1732 	    if (!gui_yank)
1733 	    {
1734 		VIsual_active = FALSE;
1735 # ifdef FEAT_MOUSE
1736 		setmouse();
1737 		mouse_dragging = 0;
1738 # endif
1739 		if (mode_displayed)
1740 		    clear_cmdline = TRUE;   /* unshow visual mode later */
1741 #ifdef FEAT_CMDL_INFO
1742 		else
1743 		    clear_showcmd();
1744 #endif
1745 		if ((oap->op_type == OP_YANK
1746 			    || oap->op_type == OP_COLON
1747 			    || oap->op_type == OP_FUNCTION
1748 			    || oap->op_type == OP_FILTER)
1749 			&& oap->motion_force == NUL)
1750 		    redraw_curbuf_later(INVERTED);
1751 	    }
1752 	}
1753 #endif
1754 
1755 #ifdef FEAT_MBYTE
1756 	/* Include the trailing byte of a multi-byte char. */
1757 	if (has_mbyte && oap->inclusive)
1758 	{
1759 	    int		l;
1760 
1761 	    l = (*mb_ptr2len)(ml_get_pos(&oap->end));
1762 	    if (l > 1)
1763 		oap->end.col += l - 1;
1764 	}
1765 #endif
1766 	curwin->w_set_curswant = TRUE;
1767 
1768 	/*
1769 	 * oap->empty is set when start and end are the same.  The inclusive
1770 	 * flag affects this too, unless yanking and the end is on a NUL.
1771 	 */
1772 	oap->empty = (oap->motion_type == MCHAR
1773 		    && (!oap->inclusive
1774 			|| (oap->op_type == OP_YANK
1775 			    && gchar_pos(&oap->end) == NUL))
1776 		    && equalpos(oap->start, oap->end)
1777 #ifdef FEAT_VIRTUALEDIT
1778 		    && !(virtual_op && oap->start.coladd != oap->end.coladd)
1779 #endif
1780 		    );
1781 	/*
1782 	 * For delete, change and yank, it's an error to operate on an
1783 	 * empty region, when 'E' included in 'cpoptions' (Vi compatible).
1784 	 */
1785 	empty_region_error = (oap->empty
1786 				&& vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL);
1787 
1788 #ifdef FEAT_VISUAL
1789 	/* Force a redraw when operating on an empty Visual region, when
1790 	 * 'modifiable is off or creating a fold. */
1791 	if (oap->is_VIsual && (oap->empty || !curbuf->b_p_ma
1792 # ifdef FEAT_FOLDING
1793 		    || oap->op_type == OP_FOLD
1794 # endif
1795 		    ))
1796 	    redraw_curbuf_later(INVERTED);
1797 #endif
1798 
1799 	/*
1800 	 * If the end of an operator is in column one while oap->motion_type
1801 	 * is MCHAR and oap->inclusive is FALSE, we put op_end after the last
1802 	 * character in the previous line. If op_start is on or before the
1803 	 * first non-blank in the line, the operator becomes linewise
1804 	 * (strange, but that's the way vi does it).
1805 	 */
1806 	if (	   oap->motion_type == MCHAR
1807 		&& oap->inclusive == FALSE
1808 		&& !(cap->retval & CA_NO_ADJ_OP_END)
1809 		&& oap->end.col == 0
1810 #ifdef FEAT_VISUAL
1811 		&& (!oap->is_VIsual || *p_sel == 'o')
1812 		&& !oap->block_mode
1813 #endif
1814 		&& oap->line_count > 1)
1815 	{
1816 	    oap->end_adjusted = TRUE;	    /* remember that we did this */
1817 	    --oap->line_count;
1818 	    --oap->end.lnum;
1819 	    if (inindent(0))
1820 		oap->motion_type = MLINE;
1821 	    else
1822 	    {
1823 		oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
1824 		if (oap->end.col)
1825 		{
1826 		    --oap->end.col;
1827 		    oap->inclusive = TRUE;
1828 		}
1829 	    }
1830 	}
1831 	else
1832 	    oap->end_adjusted = FALSE;
1833 
1834 	switch (oap->op_type)
1835 	{
1836 	case OP_LSHIFT:
1837 	case OP_RSHIFT:
1838 	    op_shift(oap, TRUE,
1839 #ifdef FEAT_VISUAL
1840 		    oap->is_VIsual ? (int)cap->count1 :
1841 #endif
1842 		    1);
1843 	    auto_format(FALSE, TRUE);
1844 	    break;
1845 
1846 	case OP_JOIN_NS:
1847 	case OP_JOIN:
1848 	    if (oap->line_count < 2)
1849 		oap->line_count = 2;
1850 	    if (curwin->w_cursor.lnum + oap->line_count - 1 >
1851 						   curbuf->b_ml.ml_line_count)
1852 		beep_flush();
1853 	    else
1854 	    {
1855 		do_do_join(oap->line_count, oap->op_type == OP_JOIN);
1856 		auto_format(FALSE, TRUE);
1857 	    }
1858 	    break;
1859 
1860 	case OP_DELETE:
1861 #ifdef FEAT_VISUAL
1862 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1863 #endif
1864 	    if (empty_region_error)
1865 		vim_beep();
1866 	    else
1867 	    {
1868 		(void)op_delete(oap);
1869 		if (oap->motion_type == MLINE && has_format_option(FO_AUTO))
1870 		    u_save_cursor();	    /* cursor line wasn't saved yet */
1871 		auto_format(FALSE, TRUE);
1872 	    }
1873 	    break;
1874 
1875 	case OP_YANK:
1876 	    if (empty_region_error)
1877 	    {
1878 		if (!gui_yank)
1879 		    vim_beep();
1880 	    }
1881 	    else
1882 		(void)op_yank(oap, FALSE, !gui_yank);
1883 	    check_cursor_col();
1884 	    break;
1885 
1886 	case OP_CHANGE:
1887 #ifdef FEAT_VISUAL
1888 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1889 #endif
1890 	    if (empty_region_error)
1891 		vim_beep();
1892 	    else
1893 	    {
1894 		/* This is a new edit command, not a restart.  Need to
1895 		 * remember it to make 'insertmode' work with mappings for
1896 		 * Visual mode.  But do this only once and not when typed and
1897 		 * 'insertmode' isn't set. */
1898 		if (p_im || !KeyTyped)
1899 		    restart_edit_save = restart_edit;
1900 		else
1901 		    restart_edit_save = 0;
1902 		restart_edit = 0;
1903 		/* Reset finish_op now, don't want it set inside edit(). */
1904 		finish_op = FALSE;
1905 		if (op_change(oap))	/* will call edit() */
1906 		    cap->retval |= CA_COMMAND_BUSY;
1907 		if (restart_edit == 0)
1908 		    restart_edit = restart_edit_save;
1909 	    }
1910 	    break;
1911 
1912 	case OP_FILTER:
1913 	    if (vim_strchr(p_cpo, CPO_FILTER) != NULL)
1914 		AppendToRedobuff((char_u *)"!\r");  /* use any last used !cmd */
1915 	    else
1916 		bangredo = TRUE;    /* do_bang() will put cmd in redo buffer */
1917 
1918 	case OP_INDENT:
1919 	case OP_COLON:
1920 
1921 #if defined(FEAT_LISP) || defined(FEAT_CINDENT)
1922 	    /*
1923 	     * If 'equalprg' is empty, do the indenting internally.
1924 	     */
1925 	    if (oap->op_type == OP_INDENT && *get_equalprg() == NUL)
1926 	    {
1927 # ifdef FEAT_LISP
1928 		if (curbuf->b_p_lisp)
1929 		{
1930 		    op_reindent(oap, get_lisp_indent);
1931 		    break;
1932 		}
1933 # endif
1934 # ifdef FEAT_CINDENT
1935 		op_reindent(oap,
1936 #  ifdef FEAT_EVAL
1937 			*curbuf->b_p_inde != NUL ? get_expr_indent :
1938 #  endif
1939 			    get_c_indent);
1940 		break;
1941 # endif
1942 	    }
1943 #endif
1944 
1945 	    op_colon(oap);
1946 	    break;
1947 
1948 	case OP_TILDE:
1949 	case OP_UPPER:
1950 	case OP_LOWER:
1951 	case OP_ROT13:
1952 	    if (empty_region_error)
1953 		vim_beep();
1954 	    else
1955 		op_tilde(oap);
1956 	    check_cursor_col();
1957 	    break;
1958 
1959 	case OP_FORMAT:
1960 #if defined(FEAT_EVAL)
1961 	    if (*curbuf->b_p_fex != NUL)
1962 		op_formatexpr(oap);	/* use expression */
1963 	    else
1964 #endif
1965 		if (*p_fp != NUL)
1966 		op_colon(oap);		/* use external command */
1967 	    else
1968 		op_format(oap, FALSE);	/* use internal function */
1969 	    break;
1970 
1971 	case OP_FORMAT2:
1972 	    op_format(oap, TRUE);	/* use internal function */
1973 	    break;
1974 
1975 	case OP_FUNCTION:
1976 	    op_function(oap);		/* call 'operatorfunc' */
1977 	    break;
1978 
1979 	case OP_INSERT:
1980 	case OP_APPEND:
1981 #ifdef FEAT_VISUAL
1982 	    VIsual_reselect = FALSE;	/* don't reselect now */
1983 #endif
1984 #ifdef FEAT_VISUALEXTRA
1985 	    if (empty_region_error)
1986 		vim_beep();
1987 	    else
1988 	    {
1989 		/* This is a new edit command, not a restart.  Need to
1990 		 * remember it to make 'insertmode' work with mappings for
1991 		 * Visual mode.  But do this only once. */
1992 		restart_edit_save = restart_edit;
1993 		restart_edit = 0;
1994 
1995 		op_insert(oap, cap->count1);
1996 
1997 		/* TODO: when inserting in several lines, should format all
1998 		 * the lines. */
1999 		auto_format(FALSE, TRUE);
2000 
2001 		if (restart_edit == 0)
2002 		    restart_edit = restart_edit_save;
2003 	    }
2004 #else
2005 	    vim_beep();
2006 #endif
2007 	    break;
2008 
2009 	case OP_REPLACE:
2010 #ifdef FEAT_VISUAL
2011 	    VIsual_reselect = FALSE;	/* don't reselect now */
2012 #endif
2013 #ifdef FEAT_VISUALEXTRA
2014 	    if (empty_region_error)
2015 #endif
2016 		vim_beep();
2017 #ifdef FEAT_VISUALEXTRA
2018 	    else
2019 		op_replace(oap, cap->nchar);
2020 #endif
2021 	    break;
2022 
2023 #ifdef FEAT_FOLDING
2024 	case OP_FOLD:
2025 	    VIsual_reselect = FALSE;	/* don't reselect now */
2026 	    foldCreate(oap->start.lnum, oap->end.lnum);
2027 	    break;
2028 
2029 	case OP_FOLDOPEN:
2030 	case OP_FOLDOPENREC:
2031 	case OP_FOLDCLOSE:
2032 	case OP_FOLDCLOSEREC:
2033 	    VIsual_reselect = FALSE;	/* don't reselect now */
2034 	    opFoldRange(oap->start.lnum, oap->end.lnum,
2035 		    oap->op_type == OP_FOLDOPEN
2036 					    || oap->op_type == OP_FOLDOPENREC,
2037 		    oap->op_type == OP_FOLDOPENREC
2038 					  || oap->op_type == OP_FOLDCLOSEREC,
2039 					  oap->is_VIsual);
2040 	    break;
2041 
2042 	case OP_FOLDDEL:
2043 	case OP_FOLDDELREC:
2044 	    VIsual_reselect = FALSE;	/* don't reselect now */
2045 	    deleteFold(oap->start.lnum, oap->end.lnum,
2046 			       oap->op_type == OP_FOLDDELREC, oap->is_VIsual);
2047 	    break;
2048 #endif
2049 	default:
2050 	    clearopbeep(oap);
2051 	}
2052 #ifdef FEAT_VIRTUALEDIT
2053 	virtual_op = MAYBE;
2054 #endif
2055 	if (!gui_yank)
2056 	{
2057 	    /*
2058 	     * if 'sol' not set, go back to old column for some commands
2059 	     */
2060 	    if (!p_sol && oap->motion_type == MLINE && !oap->end_adjusted
2061 		    && (oap->op_type == OP_LSHIFT || oap->op_type == OP_RSHIFT
2062 						|| oap->op_type == OP_DELETE))
2063 		coladvance(curwin->w_curswant = old_col);
2064 	}
2065 	else
2066 	{
2067 	    curwin->w_cursor = old_cursor;
2068 	}
2069 #ifdef FEAT_VISUAL
2070 	oap->block_mode = FALSE;
2071 #endif
2072 	clearop(oap);
2073     }
2074 }
2075 
2076 /*
2077  * Handle indent and format operators and visual mode ":".
2078  */
2079     static void
2080 op_colon(oap)
2081     oparg_T	*oap;
2082 {
2083     stuffcharReadbuff(':');
2084 #ifdef FEAT_VISUAL
2085     if (oap->is_VIsual)
2086 	stuffReadbuff((char_u *)"'<,'>");
2087     else
2088 #endif
2089     {
2090 	/*
2091 	 * Make the range look nice, so it can be repeated.
2092 	 */
2093 	if (oap->start.lnum == curwin->w_cursor.lnum)
2094 	    stuffcharReadbuff('.');
2095 	else
2096 	    stuffnumReadbuff((long)oap->start.lnum);
2097 	if (oap->end.lnum != oap->start.lnum)
2098 	{
2099 	    stuffcharReadbuff(',');
2100 	    if (oap->end.lnum == curwin->w_cursor.lnum)
2101 		stuffcharReadbuff('.');
2102 	    else if (oap->end.lnum == curbuf->b_ml.ml_line_count)
2103 		stuffcharReadbuff('$');
2104 	    else if (oap->start.lnum == curwin->w_cursor.lnum)
2105 	    {
2106 		stuffReadbuff((char_u *)".+");
2107 		stuffnumReadbuff((long)oap->line_count - 1);
2108 	    }
2109 	    else
2110 		stuffnumReadbuff((long)oap->end.lnum);
2111 	}
2112     }
2113     if (oap->op_type != OP_COLON)
2114 	stuffReadbuff((char_u *)"!");
2115     if (oap->op_type == OP_INDENT)
2116     {
2117 #ifndef FEAT_CINDENT
2118 	if (*get_equalprg() == NUL)
2119 	    stuffReadbuff((char_u *)"indent");
2120 	else
2121 #endif
2122 	    stuffReadbuff(get_equalprg());
2123 	stuffReadbuff((char_u *)"\n");
2124     }
2125     else if (oap->op_type == OP_FORMAT)
2126     {
2127 	if (*p_fp == NUL)
2128 	    stuffReadbuff((char_u *)"fmt");
2129 	else
2130 	    stuffReadbuff(p_fp);
2131 	stuffReadbuff((char_u *)"\n']");
2132     }
2133 
2134     /*
2135      * do_cmdline() does the rest
2136      */
2137 }
2138 
2139 /*
2140  * Handle the "g@" operator: call 'operatorfunc'.
2141  */
2142 /*ARGSUSED*/
2143     static void
2144 op_function(oap)
2145     oparg_T	*oap;
2146 {
2147 #ifdef FEAT_EVAL
2148     char_u	*(argv[1]);
2149 
2150     if (*p_opfunc == NUL)
2151 	EMSG(_("E774: 'operatorfunc' is empty"));
2152     else
2153     {
2154 	/* Set '[ and '] marks to text to be operated on. */
2155 	curbuf->b_op_start = oap->start;
2156 	curbuf->b_op_end = oap->end;
2157 	if (oap->motion_type != MLINE && !oap->inclusive)
2158 	    /* Exclude the end position. */
2159 	    decl(&curbuf->b_op_end);
2160 
2161 	if (oap->block_mode)
2162 	    argv[0] = (char_u *)"block";
2163 	else if (oap->motion_type == MLINE)
2164 	    argv[0] = (char_u *)"line";
2165 	else
2166 	    argv[0] = (char_u *)"char";
2167 	(void)call_func_retnr(p_opfunc, 1, argv, FALSE);
2168     }
2169 #else
2170     EMSG(_("E775: Eval feature not available"));
2171 #endif
2172 }
2173 
2174 #if defined(FEAT_MOUSE) || defined(PROTO)
2175 /*
2176  * Do the appropriate action for the current mouse click in the current mode.
2177  * Not used for Command-line mode.
2178  *
2179  * Normal Mode:
2180  * event	 modi-	position      visual	   change   action
2181  *		 fier	cursor			   window
2182  * left press	  -	yes	    end		    yes
2183  * left press	  C	yes	    end		    yes	    "^]" (2)
2184  * left press	  S	yes	    end		    yes	    "*" (2)
2185  * left drag	  -	yes	start if moved	    no
2186  * left relse	  -	yes	start if moved	    no
2187  * middle press	  -	yes	 if not active	    no	    put register
2188  * middle press	  -	yes	 if active	    no	    yank and put
2189  * right press	  -	yes	start or extend	    yes
2190  * right press	  S	yes	no change	    yes	    "#" (2)
2191  * right drag	  -	yes	extend		    no
2192  * right relse	  -	yes	extend		    no
2193  *
2194  * Insert or Replace Mode:
2195  * event	 modi-	position      visual	   change   action
2196  *		 fier	cursor			   window
2197  * left press	  -	yes	(cannot be active)  yes
2198  * left press	  C	yes	(cannot be active)  yes	    "CTRL-O^]" (2)
2199  * left press	  S	yes	(cannot be active)  yes	    "CTRL-O*" (2)
2200  * left drag	  -	yes	start or extend (1) no	    CTRL-O (1)
2201  * left relse	  -	yes	start or extend (1) no	    CTRL-O (1)
2202  * middle press	  -	no	(cannot be active)  no	    put register
2203  * right press	  -	yes	start or extend	    yes	    CTRL-O
2204  * right press	  S	yes	(cannot be active)  yes	    "CTRL-O#" (2)
2205  *
2206  * (1) only if mouse pointer moved since press
2207  * (2) only if click is in same buffer
2208  *
2209  * Return TRUE if start_arrow() should be called for edit mode.
2210  */
2211     int
2212 do_mouse(oap, c, dir, count, fixindent)
2213     oparg_T	*oap;		/* operator argument, can be NULL */
2214     int		c;		/* K_LEFTMOUSE, etc */
2215     int		dir;		/* Direction to 'put' if necessary */
2216     long	count;
2217     int		fixindent;	/* PUT_FIXINDENT if fixing indent necessary */
2218 {
2219     static int	do_always = FALSE;	/* ignore 'mouse' setting next time */
2220     static int	got_click = FALSE;	/* got a click some time back */
2221 
2222     int		which_button;	/* MOUSE_LEFT, _MIDDLE or _RIGHT */
2223     int		is_click;	/* If FALSE it's a drag or release event */
2224     int		is_drag;	/* If TRUE it's a drag event */
2225     int		jump_flags = 0;	/* flags for jump_to_mouse() */
2226     pos_T	start_visual;
2227     int		moved;		/* Has cursor moved? */
2228     int		in_status_line;	/* mouse in status line */
2229 #ifdef FEAT_VERTSPLIT
2230     int		in_sep_line;	/* mouse in vertical separator line */
2231 #endif
2232     int		c1, c2;
2233 #if defined(FEAT_FOLDING)
2234     pos_T	save_cursor;
2235 #endif
2236     win_T	*old_curwin = curwin;
2237 #ifdef FEAT_VISUAL
2238     static pos_T orig_cursor;
2239     colnr_T	leftcol, rightcol;
2240     pos_T	end_visual;
2241     int		diff;
2242     int		old_active = VIsual_active;
2243     int		old_mode = VIsual_mode;
2244 #endif
2245     int		regname;
2246 
2247 #if defined(FEAT_FOLDING)
2248     save_cursor = curwin->w_cursor;
2249 #endif
2250 
2251     /*
2252      * When GUI is active, always recognize mouse events, otherwise:
2253      * - Ignore mouse event in normal mode if 'mouse' doesn't include 'n'.
2254      * - Ignore mouse event in visual mode if 'mouse' doesn't include 'v'.
2255      * - For command line and insert mode 'mouse' is checked before calling
2256      *	 do_mouse().
2257      */
2258     if (do_always)
2259 	do_always = FALSE;
2260     else
2261 #ifdef FEAT_GUI
2262 	if (!gui.in_use)
2263 #endif
2264 	{
2265 #ifdef FEAT_VISUAL
2266 	    if (VIsual_active)
2267 	    {
2268 		if (!mouse_has(MOUSE_VISUAL))
2269 		    return FALSE;
2270 	    }
2271 	    else
2272 #endif
2273 		if (State == NORMAL && !mouse_has(MOUSE_NORMAL))
2274 		return FALSE;
2275 	}
2276 
2277     which_button = get_mouse_button(KEY2TERMCAP1(c), &is_click, &is_drag);
2278 
2279 #ifdef FEAT_MOUSESHAPE
2280     /* May have stopped dragging the status or separator line.  The pointer is
2281      * most likely still on the status or separator line. */
2282     if (!is_drag && drag_status_line)
2283     {
2284 	drag_status_line = FALSE;
2285 	update_mouseshape(SHAPE_IDX_STATUS);
2286     }
2287 # ifdef FEAT_VERTSPLIT
2288     if (!is_drag && drag_sep_line)
2289     {
2290 	drag_sep_line = FALSE;
2291 	update_mouseshape(SHAPE_IDX_VSEP);
2292     }
2293 # endif
2294 #endif
2295 
2296     /*
2297      * Ignore drag and release events if we didn't get a click.
2298      */
2299     if (is_click)
2300 	got_click = TRUE;
2301     else
2302     {
2303 	if (!got_click)			/* didn't get click, ignore */
2304 	    return FALSE;
2305 	if (!is_drag)			/* release, reset got_click */
2306 	    got_click = FALSE;
2307     }
2308 
2309 #ifndef FEAT_VISUAL
2310     /*
2311      * ALT is only used for starging/extending Visual mode.
2312      */
2313     if ((mod_mask & MOD_MASK_ALT))
2314 	return FALSE;
2315 #endif
2316 
2317     /*
2318      * CTRL right mouse button does CTRL-T
2319      */
2320     if (is_click && (mod_mask & MOD_MASK_CTRL) && which_button == MOUSE_RIGHT)
2321     {
2322 	if (State & INSERT)
2323 	    stuffcharReadbuff(Ctrl_O);
2324 	if (count > 1)
2325 	    stuffnumReadbuff(count);
2326 	stuffcharReadbuff(Ctrl_T);
2327 	got_click = FALSE;		/* ignore drag&release now */
2328 	return FALSE;
2329     }
2330 
2331     /*
2332      * CTRL only works with left mouse button
2333      */
2334     if ((mod_mask & MOD_MASK_CTRL) && which_button != MOUSE_LEFT)
2335 	return FALSE;
2336 
2337     /*
2338      * When a modifier is down, ignore drag and release events, as well as
2339      * multiple clicks and the middle mouse button.
2340      * Accept shift-leftmouse drags when 'mousemodel' is "popup.*".
2341      */
2342     if ((mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL | MOD_MASK_ALT
2343 							     | MOD_MASK_META))
2344 	    && (!is_click
2345 		|| (mod_mask & MOD_MASK_MULTI_CLICK)
2346 		|| which_button == MOUSE_MIDDLE)
2347 	    && !((mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT))
2348 		&& mouse_model_popup()
2349 		&& which_button == MOUSE_LEFT)
2350 	    && !((mod_mask & MOD_MASK_ALT)
2351 		&& !mouse_model_popup()
2352 		&& which_button == MOUSE_RIGHT)
2353 	    )
2354 	return FALSE;
2355 
2356     /*
2357      * If the button press was used as the movement command for an operator
2358      * (eg "d<MOUSE>"), or it is the middle button that is held down, ignore
2359      * drag/release events.
2360      */
2361     if (!is_click && which_button == MOUSE_MIDDLE)
2362 	return FALSE;
2363 
2364     if (oap != NULL)
2365 	regname = oap->regname;
2366     else
2367 	regname = 0;
2368 
2369     /*
2370      * Middle mouse button does a 'put' of the selected text
2371      */
2372     if (which_button == MOUSE_MIDDLE)
2373     {
2374 	if (State == NORMAL)
2375 	{
2376 	    /*
2377 	     * If an operator was pending, we don't know what the user wanted
2378 	     * to do. Go back to normal mode: Clear the operator and beep().
2379 	     */
2380 	    if (oap != NULL && oap->op_type != OP_NOP)
2381 	    {
2382 		clearopbeep(oap);
2383 		return FALSE;
2384 	    }
2385 
2386 #ifdef FEAT_VISUAL
2387 	    /*
2388 	     * If visual was active, yank the highlighted text and put it
2389 	     * before the mouse pointer position.
2390 	     */
2391 	    if (VIsual_active)
2392 	    {
2393 		stuffcharReadbuff('y');
2394 		stuffcharReadbuff(K_MIDDLEMOUSE);
2395 		do_always = TRUE;	/* ignore 'mouse' setting next time */
2396 		return FALSE;
2397 	    }
2398 #endif
2399 	    /*
2400 	     * The rest is below jump_to_mouse()
2401 	     */
2402 	}
2403 
2404 	else if ((State & INSERT) == 0)
2405 	    return FALSE;
2406 
2407 	/*
2408 	 * Middle click in insert mode doesn't move the mouse, just insert the
2409 	 * contents of a register.  '.' register is special, can't insert that
2410 	 * with do_put().
2411 	 * Also paste at the cursor if the current mode isn't in 'mouse' (only
2412 	 * happens for the GUI).
2413 	 */
2414 	if ((State & INSERT) || !mouse_has(MOUSE_NORMAL))
2415 	{
2416 	    if (regname == '.')
2417 		insert_reg(regname, TRUE);
2418 	    else
2419 	    {
2420 #ifdef FEAT_CLIPBOARD
2421 		if (clip_star.available && regname == 0)
2422 		    regname = '*';
2423 #endif
2424 		if ((State & REPLACE_FLAG) && !yank_register_mline(regname))
2425 		    insert_reg(regname, TRUE);
2426 		else
2427 		{
2428 		    do_put(regname, BACKWARD, 1L, fixindent | PUT_CURSEND);
2429 
2430 		    /* Repeat it with CTRL-R CTRL-O r or CTRL-R CTRL-P r */
2431 		    AppendCharToRedobuff(Ctrl_R);
2432 		    AppendCharToRedobuff(fixindent ? Ctrl_P : Ctrl_O);
2433 		    AppendCharToRedobuff(regname == 0 ? '"' : regname);
2434 		}
2435 	    }
2436 	    return FALSE;
2437 	}
2438     }
2439 
2440     /* When dragging or button-up stay in the same window. */
2441     if (!is_click)
2442 	jump_flags |= MOUSE_FOCUS | MOUSE_DID_MOVE;
2443 
2444     start_visual.lnum = 0;
2445 
2446 #ifdef FEAT_WINDOWS
2447     /* Check for clicking in the tab page line. */
2448     if (mouse_row == 0 && firstwin->w_winrow > 0)
2449     {
2450 	got_click = FALSE;	/* ignore mouse-up and drag events */
2451 
2452 	/* click in a tab selects that tab page */
2453 	if (is_click
2454 # ifdef FEAT_CMDWIN
2455 		&& cmdwin_type == 0
2456 # endif
2457 		&& mouse_col < Columns)
2458 	{
2459 	    c1 = TabPageIdxs[mouse_col];
2460 	    if (c1 >= 0)
2461 	    {
2462 		if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2463 		{
2464 		    /* double click opens new page */
2465 		    end_visual_mode();
2466 		    tabpage_new();
2467 		    tabpage_move(c1 == 0 ? 9999 : c1 - 1);
2468 		}
2469 		else
2470 		{
2471 		    /* Go to specified tab page, or next one if not clicking
2472 		     * on a label. */
2473 		    goto_tabpage(c1);
2474 
2475 		    /* It's like clicking on the status line of a window. */
2476 		    if (curwin != old_curwin)
2477 			end_visual_mode();
2478 		}
2479 	    }
2480 	    else if (c1 < 0)
2481 	    {
2482 		tabpage_T	*tp;
2483 
2484 		/* Close the current or specified tab page. */
2485 		if (c1 == -999)
2486 		    tp = curtab;
2487 		else
2488 		    tp = find_tabpage(-c1);
2489 		if (tp == curtab)
2490 		{
2491 		    if (first_tabpage->tp_next != NULL)
2492 			tabpage_close(FALSE);
2493 		}
2494 		else if (tp != NULL)
2495 		    tabpage_close_other(tp, FALSE);
2496 	    }
2497 	}
2498 	return TRUE;
2499     }
2500 #endif
2501 
2502     /*
2503      * When 'mousemodel' is "popup" or "popup_setpos", translate mouse events:
2504      * right button up   -> pop-up menu
2505      * shift-left button -> right button
2506      * alt-left button   -> alt-right button
2507      */
2508     if (mouse_model_popup())
2509     {
2510 	if (which_button == MOUSE_RIGHT
2511 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2512 	{
2513 	    /*
2514 	     * NOTE: Ignore right button down and drag mouse events.
2515 	     * Windows only shows the popup menu on the button up event.
2516 	     */
2517 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_PHOTON)
2518 	    if (!is_click)
2519 		return FALSE;
2520 #endif
2521 #if defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN)
2522 	    if (is_click || is_drag)
2523 		return FALSE;
2524 #endif
2525 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) \
2526 	    || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \
2527 	    || defined(FEAT_GUI_MAC) || defined(FEAT_GUI_PHOTON)
2528 	    if (gui.in_use)
2529 	    {
2530 		jump_flags = 0;
2531 		if (STRCMP(p_mousem, "popup_setpos") == 0)
2532 		{
2533 		    /* First set the cursor position before showing the popup
2534 		     * menu. */
2535 #ifdef FEAT_VISUAL
2536 		    if (VIsual_active)
2537 		    {
2538 			pos_T    m_pos;
2539 
2540 			/*
2541 			 * set MOUSE_MAY_STOP_VIS if we are outside the
2542 			 * selection or the current window (might have false
2543 			 * negative here)
2544 			 */
2545 			if (mouse_row < W_WINROW(curwin)
2546 			     || mouse_row
2547 				      > (W_WINROW(curwin) + curwin->w_height))
2548 			    jump_flags = MOUSE_MAY_STOP_VIS;
2549 			else if (get_fpos_of_mouse(&m_pos) != IN_BUFFER)
2550 			    jump_flags = MOUSE_MAY_STOP_VIS;
2551 			else
2552 			{
2553 			    if ((lt(curwin->w_cursor, VIsual)
2554 					&& (lt(m_pos, curwin->w_cursor)
2555 					    || lt(VIsual, m_pos)))
2556 				    || (lt(VIsual, curwin->w_cursor)
2557 					&& (lt(m_pos, VIsual)
2558 					    || lt(curwin->w_cursor, m_pos))))
2559 			    {
2560 				jump_flags = MOUSE_MAY_STOP_VIS;
2561 			    }
2562 			    else if (VIsual_mode == Ctrl_V)
2563 			    {
2564 				getvcols(curwin, &curwin->w_cursor, &VIsual,
2565 							 &leftcol, &rightcol);
2566 				getvcol(curwin, &m_pos, NULL, &m_pos.col, NULL);
2567 				if (m_pos.col < leftcol || m_pos.col > rightcol)
2568 				    jump_flags = MOUSE_MAY_STOP_VIS;
2569 			    }
2570 			}
2571 		    }
2572 		    else
2573 			jump_flags = MOUSE_MAY_STOP_VIS;
2574 #endif
2575 		}
2576 		if (jump_flags)
2577 		{
2578 		    jump_flags = jump_to_mouse(jump_flags, NULL, which_button);
2579 		    update_curbuf(
2580 #ifdef FEAT_VISUAL
2581 			    VIsual_active ? INVERTED :
2582 #endif
2583 			    VALID);
2584 		    setcursor();
2585 		    out_flush();    /* Update before showing popup menu */
2586 		}
2587 # ifdef FEAT_MENU
2588 		gui_show_popupmenu();
2589 # endif
2590 		return (jump_flags & CURSOR_MOVED) != 0;
2591 	    }
2592 	    else
2593 		return FALSE;
2594 #else
2595 	    return FALSE;
2596 #endif
2597 	}
2598 	if (which_button == MOUSE_LEFT
2599 				&& (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT)))
2600 	{
2601 	    which_button = MOUSE_RIGHT;
2602 	    mod_mask &= ~MOD_MASK_SHIFT;
2603 	}
2604     }
2605 
2606 #ifdef FEAT_VISUAL
2607     if ((State & (NORMAL | INSERT))
2608 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2609     {
2610 	if (which_button == MOUSE_LEFT)
2611 	{
2612 	    if (is_click)
2613 	    {
2614 		/* stop Visual mode for a left click in a window, but not when
2615 		 * on a status line */
2616 		if (VIsual_active)
2617 		    jump_flags |= MOUSE_MAY_STOP_VIS;
2618 	    }
2619 	    else if (mouse_has(MOUSE_VISUAL))
2620 		jump_flags |= MOUSE_MAY_VIS;
2621 	}
2622 	else if (which_button == MOUSE_RIGHT)
2623 	{
2624 	    if (is_click && VIsual_active)
2625 	    {
2626 		/*
2627 		 * Remember the start and end of visual before moving the
2628 		 * cursor.
2629 		 */
2630 		if (lt(curwin->w_cursor, VIsual))
2631 		{
2632 		    start_visual = curwin->w_cursor;
2633 		    end_visual = VIsual;
2634 		}
2635 		else
2636 		{
2637 		    start_visual = VIsual;
2638 		    end_visual = curwin->w_cursor;
2639 		}
2640 	    }
2641 	    jump_flags |= MOUSE_FOCUS;
2642 	    if (mouse_has(MOUSE_VISUAL))
2643 		jump_flags |= MOUSE_MAY_VIS;
2644 	}
2645     }
2646 #endif
2647 
2648     /*
2649      * If an operator is pending, ignore all drags and releases until the
2650      * next mouse click.
2651      */
2652     if (!is_drag && oap != NULL && oap->op_type != OP_NOP)
2653     {
2654 	got_click = FALSE;
2655 	oap->motion_type = MCHAR;
2656     }
2657 
2658     /* When releasing the button let jump_to_mouse() know. */
2659     if (!is_click && !is_drag)
2660 	jump_flags |= MOUSE_RELEASED;
2661 
2662     /*
2663      * JUMP!
2664      */
2665     jump_flags = jump_to_mouse(jump_flags,
2666 			oap == NULL ? NULL : &(oap->inclusive), which_button);
2667     moved = (jump_flags & CURSOR_MOVED);
2668     in_status_line = (jump_flags & IN_STATUS_LINE);
2669 #ifdef FEAT_VERTSPLIT
2670     in_sep_line = (jump_flags & IN_SEP_LINE);
2671 #endif
2672 
2673 #ifdef FEAT_NETBEANS_INTG
2674     if (usingNetbeans && isNetbeansBuffer(curbuf)
2675 			    && !(jump_flags & (IN_STATUS_LINE | IN_SEP_LINE)))
2676     {
2677 	int key = KEY2TERMCAP1(c);
2678 
2679 	if (key == (int)KE_LEFTRELEASE || key == (int)KE_MIDDLERELEASE
2680 					       || key == (int)KE_RIGHTRELEASE)
2681 	    netbeans_button_release(which_button);
2682     }
2683 #endif
2684 
2685     /* When jumping to another window, clear a pending operator.  That's a bit
2686      * friendlier than beeping and not jumping to that window. */
2687     if (curwin != old_curwin && oap != NULL && oap->op_type != OP_NOP)
2688 	clearop(oap);
2689 
2690 #ifdef FEAT_FOLDING
2691     if (mod_mask == 0
2692 	    && !is_drag
2693 	    && (jump_flags & (MOUSE_FOLD_CLOSE | MOUSE_FOLD_OPEN))
2694 	    && which_button == MOUSE_LEFT)
2695     {
2696 	/* open or close a fold at this line */
2697 	if (jump_flags & MOUSE_FOLD_OPEN)
2698 	    openFold(curwin->w_cursor.lnum, 1L);
2699 	else
2700 	    closeFold(curwin->w_cursor.lnum, 1L);
2701 	/* don't move the cursor if still in the same window */
2702 	if (curwin == old_curwin)
2703 	    curwin->w_cursor = save_cursor;
2704     }
2705 #endif
2706 
2707 #if defined(FEAT_CLIPBOARD) && defined(FEAT_CMDWIN)
2708     if ((jump_flags & IN_OTHER_WIN) && !VIsual_active && clip_star.available)
2709     {
2710 	clip_modeless(which_button, is_click, is_drag);
2711 	return FALSE;
2712     }
2713 #endif
2714 
2715 #ifdef FEAT_VISUAL
2716     /* Set global flag that we are extending the Visual area with mouse
2717      * dragging; temporarily mimimize 'scrolloff'. */
2718     if (VIsual_active && is_drag && p_so)
2719     {
2720 	/* In the very first line, allow scrolling one line */
2721 	if (mouse_row == 0)
2722 	    mouse_dragging = 2;
2723 	else
2724 	    mouse_dragging = 1;
2725     }
2726 
2727     /* When dragging the mouse above the window, scroll down. */
2728     if (is_drag && mouse_row < 0 && !in_status_line)
2729     {
2730 	scroll_redraw(FALSE, 1L);
2731 	mouse_row = 0;
2732     }
2733 
2734     if (start_visual.lnum)		/* right click in visual mode */
2735     {
2736        /* When ALT is pressed make Visual mode blockwise. */
2737        if (mod_mask & MOD_MASK_ALT)
2738 	   VIsual_mode = Ctrl_V;
2739 
2740 	/*
2741 	 * In Visual-block mode, divide the area in four, pick up the corner
2742 	 * that is in the quarter that the cursor is in.
2743 	 */
2744 	if (VIsual_mode == Ctrl_V)
2745 	{
2746 	    getvcols(curwin, &start_visual, &end_visual, &leftcol, &rightcol);
2747 	    if (curwin->w_curswant > (leftcol + rightcol) / 2)
2748 		end_visual.col = leftcol;
2749 	    else
2750 		end_visual.col = rightcol;
2751 	    if (curwin->w_cursor.lnum <
2752 				    (start_visual.lnum + end_visual.lnum) / 2)
2753 		end_visual.lnum = end_visual.lnum;
2754 	    else
2755 		end_visual.lnum = start_visual.lnum;
2756 
2757 	    /* move VIsual to the right column */
2758 	    start_visual = curwin->w_cursor;	    /* save the cursor pos */
2759 	    curwin->w_cursor = end_visual;
2760 	    coladvance(end_visual.col);
2761 	    VIsual = curwin->w_cursor;
2762 	    curwin->w_cursor = start_visual;	    /* restore the cursor */
2763 	}
2764 	else
2765 	{
2766 	    /*
2767 	     * If the click is before the start of visual, change the start.
2768 	     * If the click is after the end of visual, change the end.  If
2769 	     * the click is inside the visual, change the closest side.
2770 	     */
2771 	    if (lt(curwin->w_cursor, start_visual))
2772 		VIsual = end_visual;
2773 	    else if (lt(end_visual, curwin->w_cursor))
2774 		VIsual = start_visual;
2775 	    else
2776 	    {
2777 		/* In the same line, compare column number */
2778 		if (end_visual.lnum == start_visual.lnum)
2779 		{
2780 		    if (curwin->w_cursor.col - start_visual.col >
2781 				    end_visual.col - curwin->w_cursor.col)
2782 			VIsual = start_visual;
2783 		    else
2784 			VIsual = end_visual;
2785 		}
2786 
2787 		/* In different lines, compare line number */
2788 		else
2789 		{
2790 		    diff = (curwin->w_cursor.lnum - start_visual.lnum) -
2791 				(end_visual.lnum - curwin->w_cursor.lnum);
2792 
2793 		    if (diff > 0)		/* closest to end */
2794 			VIsual = start_visual;
2795 		    else if (diff < 0)	/* closest to start */
2796 			VIsual = end_visual;
2797 		    else			/* in the middle line */
2798 		    {
2799 			if (curwin->w_cursor.col <
2800 					(start_visual.col + end_visual.col) / 2)
2801 			    VIsual = end_visual;
2802 			else
2803 			    VIsual = start_visual;
2804 		    }
2805 		}
2806 	    }
2807 	}
2808     }
2809     /*
2810      * If Visual mode started in insert mode, execute "CTRL-O"
2811      */
2812     else if ((State & INSERT) && VIsual_active)
2813 	stuffcharReadbuff(Ctrl_O);
2814 #endif
2815 
2816     /*
2817      * Middle mouse click: Put text before cursor.
2818      */
2819     if (which_button == MOUSE_MIDDLE)
2820     {
2821 #ifdef FEAT_CLIPBOARD
2822 	if (clip_star.available && regname == 0)
2823 	    regname = '*';
2824 #endif
2825 	if (yank_register_mline(regname))
2826 	{
2827 	    if (mouse_past_bottom)
2828 		dir = FORWARD;
2829 	}
2830 	else if (mouse_past_eol)
2831 	    dir = FORWARD;
2832 
2833 	if (fixindent)
2834 	{
2835 	    c1 = (dir == BACKWARD) ? '[' : ']';
2836 	    c2 = 'p';
2837 	}
2838 	else
2839 	{
2840 	    c1 = (dir == FORWARD) ? 'p' : 'P';
2841 	    c2 = NUL;
2842 	}
2843 	prep_redo(regname, count, NUL, c1, NUL, c2, NUL);
2844 
2845 	/*
2846 	 * Remember where the paste started, so in edit() Insstart can be set
2847 	 * to this position
2848 	 */
2849 	if (restart_edit != 0)
2850 	    where_paste_started = curwin->w_cursor;
2851 	do_put(regname, dir, count, fixindent | PUT_CURSEND);
2852     }
2853 
2854 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2855     /*
2856      * Ctrl-Mouse click or double click in a quickfix window jumps to the
2857      * error under the mouse pointer.
2858      */
2859     else if (((mod_mask & MOD_MASK_CTRL)
2860 		|| (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2861 	    && bt_quickfix(curbuf))
2862     {
2863 	if (State & INSERT)
2864 	    stuffcharReadbuff(Ctrl_O);
2865 	if (curwin->w_llist_ref == NULL)	/* quickfix window */
2866 	    stuffReadbuff((char_u *)":.cc\n");
2867 	else					/* location list window */
2868 	    stuffReadbuff((char_u *)":.ll\n");
2869 	got_click = FALSE;		/* ignore drag&release now */
2870     }
2871 #endif
2872 
2873     /*
2874      * Ctrl-Mouse click (or double click in a help window) jumps to the tag
2875      * under the mouse pointer.
2876      */
2877     else if ((mod_mask & MOD_MASK_CTRL) || (curbuf->b_help
2878 		     && (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK))
2879     {
2880 	if (State & INSERT)
2881 	    stuffcharReadbuff(Ctrl_O);
2882 	stuffcharReadbuff(Ctrl_RSB);
2883 	got_click = FALSE;		/* ignore drag&release now */
2884     }
2885 
2886     /*
2887      * Shift-Mouse click searches for the next occurrence of the word under
2888      * the mouse pointer
2889      */
2890     else if ((mod_mask & MOD_MASK_SHIFT))
2891     {
2892 	if (State & INSERT
2893 #ifdef FEAT_VISUAL
2894 		|| (VIsual_active && VIsual_select)
2895 #endif
2896 		)
2897 	    stuffcharReadbuff(Ctrl_O);
2898 	if (which_button == MOUSE_LEFT)
2899 	    stuffcharReadbuff('*');
2900 	else	/* MOUSE_RIGHT */
2901 	    stuffcharReadbuff('#');
2902     }
2903 
2904     /* Handle double clicks, unless on status line */
2905     else if (in_status_line)
2906     {
2907 #ifdef FEAT_MOUSESHAPE
2908 	if ((is_drag || is_click) && !drag_status_line)
2909 	{
2910 	    drag_status_line = TRUE;
2911 	    update_mouseshape(-1);
2912 	}
2913 #endif
2914     }
2915 #ifdef FEAT_VERTSPLIT
2916     else if (in_sep_line)
2917     {
2918 # ifdef FEAT_MOUSESHAPE
2919 	if ((is_drag || is_click) && !drag_sep_line)
2920 	{
2921 	    drag_sep_line = TRUE;
2922 	    update_mouseshape(-1);
2923 	}
2924 # endif
2925     }
2926 #endif
2927 #ifdef FEAT_VISUAL
2928     else if ((mod_mask & MOD_MASK_MULTI_CLICK) && (State & (NORMAL | INSERT))
2929 	     && mouse_has(MOUSE_VISUAL))
2930     {
2931 	if (is_click || !VIsual_active)
2932 	{
2933 	    if (VIsual_active)
2934 		orig_cursor = VIsual;
2935 	    else
2936 	    {
2937 		check_visual_highlight();
2938 		VIsual = curwin->w_cursor;
2939 		orig_cursor = VIsual;
2940 		VIsual_active = TRUE;
2941 		VIsual_reselect = TRUE;
2942 		/* start Select mode if 'selectmode' contains "mouse" */
2943 		may_start_select('o');
2944 		setmouse();
2945 	    }
2946 	    if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2947 	    {
2948 		/* Double click with ALT pressed makes it blockwise. */
2949 		if (mod_mask & MOD_MASK_ALT)
2950 		    VIsual_mode = Ctrl_V;
2951 		else
2952 		    VIsual_mode = 'v';
2953 	    }
2954 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_3CLICK)
2955 		VIsual_mode = 'V';
2956 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_4CLICK)
2957 		VIsual_mode = Ctrl_V;
2958 #ifdef FEAT_CLIPBOARD
2959 	    /* Make sure the clipboard gets updated.  Needed because start and
2960 	     * end may still be the same, and the selection needs to be owned */
2961 	    clip_star.vmode = NUL;
2962 #endif
2963 	}
2964 	/*
2965 	 * A double click selects a word or a block.
2966 	 */
2967 	if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2968 	{
2969 	    pos_T	*pos = NULL;
2970 	    int		gc;
2971 
2972 	    if (is_click)
2973 	    {
2974 		/* If the character under the cursor (skipping white space) is
2975 		 * not a word character, try finding a match and select a (),
2976 		 * {}, [], #if/#endif, etc. block. */
2977 		end_visual = curwin->w_cursor;
2978 		while (gc = gchar_pos(&end_visual), vim_iswhite(gc))
2979 		    inc(&end_visual);
2980 		if (oap != NULL)
2981 		    oap->motion_type = MCHAR;
2982 		if (oap != NULL
2983 			&& VIsual_mode == 'v'
2984 			&& !vim_iswordc(gchar_pos(&end_visual))
2985 			&& equalpos(curwin->w_cursor, VIsual)
2986 			&& (pos = findmatch(oap, NUL)) != NULL)
2987 		{
2988 		    curwin->w_cursor = *pos;
2989 		    if (oap->motion_type == MLINE)
2990 			VIsual_mode = 'V';
2991 		    else if (*p_sel == 'e')
2992 		    {
2993 			if (lt(curwin->w_cursor, VIsual))
2994 			    ++VIsual.col;
2995 			else
2996 			    ++curwin->w_cursor.col;
2997 		    }
2998 		}
2999 	    }
3000 
3001 	    if (pos == NULL && (is_click || is_drag))
3002 	    {
3003 		/* When not found a match or when dragging: extend to include
3004 		 * a word. */
3005 		if (lt(curwin->w_cursor, orig_cursor))
3006 		{
3007 		    find_start_of_word(&curwin->w_cursor);
3008 		    find_end_of_word(&VIsual);
3009 		}
3010 		else
3011 		{
3012 		    find_start_of_word(&VIsual);
3013 		    if (*p_sel == 'e' && *ml_get_cursor() != NUL)
3014 #ifdef FEAT_MBYTE
3015 			curwin->w_cursor.col +=
3016 					 (*mb_ptr2len)(ml_get_cursor());
3017 #else
3018 			++curwin->w_cursor.col;
3019 #endif
3020 		    find_end_of_word(&curwin->w_cursor);
3021 		}
3022 	    }
3023 	    curwin->w_set_curswant = TRUE;
3024 	}
3025 	if (is_click)
3026 	    redraw_curbuf_later(INVERTED);	/* update the inversion */
3027     }
3028     else if (VIsual_active && !old_active)
3029     {
3030 	if (mod_mask & MOD_MASK_ALT)
3031 	    VIsual_mode = Ctrl_V;
3032 	else
3033 	    VIsual_mode = 'v';
3034     }
3035 
3036     /* If Visual mode changed show it later. */
3037     if ((!VIsual_active && old_active && mode_displayed)
3038 	    || (VIsual_active && p_smd && msg_silent == 0
3039 				 && (!old_active || VIsual_mode != old_mode)))
3040 	redraw_cmdline = TRUE;
3041 #endif
3042 
3043     return moved;
3044 }
3045 
3046 #ifdef FEAT_VISUAL
3047 /*
3048  * Move "pos" back to the start of the word it's in.
3049  */
3050     static void
3051 find_start_of_word(pos)
3052     pos_T	*pos;
3053 {
3054     char_u	*line;
3055     int		cclass;
3056     int		col;
3057 
3058     line = ml_get(pos->lnum);
3059     cclass = get_mouse_class(line + pos->col);
3060 
3061     while (pos->col > 0)
3062     {
3063 	col = pos->col - 1;
3064 #ifdef FEAT_MBYTE
3065 	col -= (*mb_head_off)(line, line + col);
3066 #endif
3067 	if (get_mouse_class(line + col) != cclass)
3068 	    break;
3069 	pos->col = col;
3070     }
3071 }
3072 
3073 /*
3074  * Move "pos" forward to the end of the word it's in.
3075  * When 'selection' is "exclusive", the position is just after the word.
3076  */
3077     static void
3078 find_end_of_word(pos)
3079     pos_T	*pos;
3080 {
3081     char_u	*line;
3082     int		cclass;
3083     int		col;
3084 
3085     line = ml_get(pos->lnum);
3086     if (*p_sel == 'e' && pos->col > 0)
3087     {
3088 	--pos->col;
3089 #ifdef FEAT_MBYTE
3090 	pos->col -= (*mb_head_off)(line, line + pos->col);
3091 #endif
3092     }
3093     cclass = get_mouse_class(line + pos->col);
3094     while (line[pos->col] != NUL)
3095     {
3096 #ifdef FEAT_MBYTE
3097 	col = pos->col + (*mb_ptr2len)(line + pos->col);
3098 #else
3099 	col = pos->col + 1;
3100 #endif
3101 	if (get_mouse_class(line + col) != cclass)
3102 	{
3103 	    if (*p_sel == 'e')
3104 		pos->col = col;
3105 	    break;
3106 	}
3107 	pos->col = col;
3108     }
3109 }
3110 
3111 /*
3112  * Get class of a character for selection: same class means same word.
3113  * 0: blank
3114  * 1: punctuation groups
3115  * 2: normal word character
3116  * >2: multi-byte word character.
3117  */
3118     static int
3119 get_mouse_class(p)
3120     char_u	*p;
3121 {
3122     int		c;
3123 
3124 #ifdef FEAT_MBYTE
3125     if (has_mbyte && MB_BYTE2LEN(p[0]) > 1)
3126 	return mb_get_class(p);
3127 #endif
3128 
3129     c = *p;
3130     if (c == ' ' || c == '\t')
3131 	return 0;
3132 
3133     if (vim_iswordc(c))
3134 	return 2;
3135 
3136     /*
3137      * There are a few special cases where we want certain combinations of
3138      * characters to be considered as a single word.  These are things like
3139      * "->", "/ *", "*=", "+=", "&=", "<=", ">=", "!=" etc.  Otherwise, each
3140      * character is in it's own class.
3141      */
3142     if (c != NUL && vim_strchr((char_u *)"-+*/%<>&|^!=", c) != NULL)
3143 	return 1;
3144     return c;
3145 }
3146 #endif /* FEAT_VISUAL */
3147 #endif /* FEAT_MOUSE */
3148 
3149 #if defined(FEAT_VISUAL) || defined(PROTO)
3150 /*
3151  * Check if  highlighting for visual mode is possible, give a warning message
3152  * if not.
3153  */
3154     void
3155 check_visual_highlight()
3156 {
3157     static int	    did_check = FALSE;
3158 
3159     if (full_screen)
3160     {
3161 	if (!did_check && hl_attr(HLF_V) == 0)
3162 	    MSG(_("Warning: terminal cannot highlight"));
3163 	did_check = TRUE;
3164     }
3165 }
3166 
3167 /*
3168  * End Visual mode.
3169  * This function should ALWAYS be called to end Visual mode, except from
3170  * do_pending_operator().
3171  */
3172     void
3173 end_visual_mode()
3174 {
3175 #ifdef FEAT_CLIPBOARD
3176     /*
3177      * If we are using the clipboard, then remember what was selected in case
3178      * we need to paste it somewhere while we still own the selection.
3179      * Only do this when the clipboard is already owned.  Don't want to grab
3180      * the selection when hitting ESC.
3181      */
3182     if (clip_star.available && clip_star.owned)
3183 	clip_auto_select();
3184 #endif
3185 
3186     VIsual_active = FALSE;
3187 #ifdef FEAT_MOUSE
3188     setmouse();
3189     mouse_dragging = 0;
3190 #endif
3191 
3192     /* Save the current VIsual area for '< and '> marks, and "gv" */
3193     curbuf->b_visual.vi_mode = VIsual_mode;
3194     curbuf->b_visual.vi_start = VIsual;
3195     curbuf->b_visual.vi_end = curwin->w_cursor;
3196     curbuf->b_visual.vi_curswant = curwin->w_curswant;
3197 #ifdef FEAT_EVAL
3198     curbuf->b_visual_mode_eval = VIsual_mode;
3199 #endif
3200 #ifdef FEAT_VIRTUALEDIT
3201     if (!virtual_active())
3202 	curwin->w_cursor.coladd = 0;
3203 #endif
3204 
3205     if (mode_displayed)
3206 	clear_cmdline = TRUE;		/* unshow visual mode later */
3207 #ifdef FEAT_CMDL_INFO
3208     else
3209 	clear_showcmd();
3210 #endif
3211 
3212     adjust_cursor_eol();
3213 }
3214 
3215 /*
3216  * Reset VIsual_active and VIsual_reselect.
3217  */
3218     void
3219 reset_VIsual_and_resel()
3220 {
3221     if (VIsual_active)
3222     {
3223 	end_visual_mode();
3224 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3225     }
3226     VIsual_reselect = FALSE;
3227 }
3228 
3229 /*
3230  * Reset VIsual_active and VIsual_reselect if it's set.
3231  */
3232     void
3233 reset_VIsual()
3234 {
3235     if (VIsual_active)
3236     {
3237 	end_visual_mode();
3238 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3239 	VIsual_reselect = FALSE;
3240     }
3241 }
3242 #endif /* FEAT_VISUAL */
3243 
3244 #if defined(FEAT_BEVAL)
3245 static int find_is_eval_item __ARGS((char_u *ptr, int *colp, int *nbp, int dir));
3246 
3247 /*
3248  * Check for a balloon-eval special item to include when searching for an
3249  * identifier.  When "dir" is BACKWARD "ptr[-1]" must be valid!
3250  * Returns TRUE if the character at "*ptr" should be included.
3251  * "dir" is FORWARD or BACKWARD, the direction of searching.
3252  * "*colp" is in/decremented if "ptr[-dir]" should also be included.
3253  * "bnp" points to a counter for square brackets.
3254  */
3255     static int
3256 find_is_eval_item(ptr, colp, bnp, dir)
3257     char_u	*ptr;
3258     int		*colp;
3259     int		*bnp;
3260     int		dir;
3261 {
3262     /* Accept everything inside []. */
3263     if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD))
3264 	++*bnp;
3265     if (*bnp > 0)
3266     {
3267 	if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD))
3268 	    --*bnp;
3269 	return TRUE;
3270     }
3271 
3272     /* skip over "s.var" */
3273     if (*ptr == '.')
3274 	return TRUE;
3275 
3276     /* two-character item: s->var */
3277     if (ptr[dir == BACKWARD ? 0 : 1] == '>'
3278 	    && ptr[dir == BACKWARD ? -1 : 0] == '-')
3279     {
3280 	*colp += dir;
3281 	return TRUE;
3282     }
3283     return FALSE;
3284 }
3285 #endif
3286 
3287 /*
3288  * Find the identifier under or to the right of the cursor.
3289  * "find_type" can have one of three values:
3290  * FIND_IDENT:   find an identifier (keyword)
3291  * FIND_STRING:  find any non-white string
3292  * FIND_IDENT + FIND_STRING: find any non-white string, identifier preferred.
3293  * FIND_EVAL:	 find text useful for C program debugging
3294  *
3295  * There are three steps:
3296  * 1. Search forward for the start of an identifier/string.  Doesn't move if
3297  *    already on one.
3298  * 2. Search backward for the start of this identifier/string.
3299  *    This doesn't match the real Vi but I like it a little better and it
3300  *    shouldn't bother anyone.
3301  * 3. Search forward to the end of this identifier/string.
3302  *    When FIND_IDENT isn't defined, we backup until a blank.
3303  *
3304  * Returns the length of the string, or zero if no string is found.
3305  * If a string is found, a pointer to the string is put in "*string".  This
3306  * string is not always NUL terminated.
3307  */
3308     int
3309 find_ident_under_cursor(string, find_type)
3310     char_u	**string;
3311     int		find_type;
3312 {
3313     return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
3314 				     curwin->w_cursor.col, string, find_type);
3315 }
3316 
3317 /*
3318  * Like find_ident_under_cursor(), but for any window and any position.
3319  * However: Uses 'iskeyword' from the current window!.
3320  */
3321     int
3322 find_ident_at_pos(wp, lnum, startcol, string, find_type)
3323     win_T	*wp;
3324     linenr_T	lnum;
3325     colnr_T	startcol;
3326     char_u	**string;
3327     int		find_type;
3328 {
3329     char_u	*ptr;
3330     int		col = 0;	    /* init to shut up GCC */
3331     int		i;
3332 #ifdef FEAT_MBYTE
3333     int		this_class = 0;
3334     int		prev_class;
3335     int		prevcol;
3336 #endif
3337 #if defined(FEAT_BEVAL)
3338     int		bn = 0;	    /* bracket nesting */
3339 #endif
3340 
3341     /*
3342      * if i == 0: try to find an identifier
3343      * if i == 1: try to find any non-white string
3344      */
3345     ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
3346     for (i = (find_type & FIND_IDENT) ? 0 : 1;	i < 2; ++i)
3347     {
3348 	/*
3349 	 * 1. skip to start of identifier/string
3350 	 */
3351 	col = startcol;
3352 #ifdef FEAT_MBYTE
3353 	if (has_mbyte)
3354 	{
3355 	    while (ptr[col] != NUL)
3356 	    {
3357 # if defined(FEAT_BEVAL)
3358 		/* Stop at a ']' to evaluate "a[x]". */
3359 		if ((find_type & FIND_EVAL) && ptr[col] == ']')
3360 		    break;
3361 # endif
3362 		this_class = mb_get_class(ptr + col);
3363 		if (this_class != 0 && (i == 1 || this_class != 1))
3364 		    break;
3365 		col += (*mb_ptr2len)(ptr + col);
3366 	    }
3367 	}
3368 	else
3369 #endif
3370 	    while (ptr[col] != NUL
3371 		    && (i == 0 ? !vim_iswordc(ptr[col]) : vim_iswhite(ptr[col]))
3372 # if defined(FEAT_BEVAL)
3373 		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
3374 # endif
3375 		    )
3376 		++col;
3377 
3378 #if defined(FEAT_BEVAL)
3379 	/* When starting on a ']' count it, so that we include the '['. */
3380 	bn = ptr[col] == ']';
3381 #endif
3382 
3383 	/*
3384 	 * 2. Back up to start of identifier/string.
3385 	 */
3386 #ifdef FEAT_MBYTE
3387 	if (has_mbyte)
3388 	{
3389 	    /* Remember class of character under cursor. */
3390 # if defined(FEAT_BEVAL)
3391 	    if ((find_type & FIND_EVAL) && ptr[col] == ']')
3392 		this_class = mb_get_class((char_u *)"a");
3393 	    else
3394 # endif
3395 		this_class = mb_get_class(ptr + col);
3396 	    while (col > 0 && this_class != 0)
3397 	    {
3398 		prevcol = col - 1 - (*mb_head_off)(ptr, ptr + col - 1);
3399 		prev_class = mb_get_class(ptr + prevcol);
3400 		if (this_class != prev_class
3401 			&& (i == 0
3402 			    || prev_class == 0
3403 			    || (find_type & FIND_IDENT))
3404 # if defined(FEAT_BEVAL)
3405 			&& (!(find_type & FIND_EVAL)
3406 			    || prevcol == 0
3407 			    || !find_is_eval_item(ptr + prevcol, &prevcol,
3408 							       &bn, BACKWARD))
3409 # endif
3410 			)
3411 		    break;
3412 		col = prevcol;
3413 	    }
3414 
3415 	    /* If we don't want just any old string, or we've found an
3416 	     * identifier, stop searching. */
3417 	    if (this_class > 2)
3418 		this_class = 2;
3419 	    if (!(find_type & FIND_STRING) || this_class == 2)
3420 		break;
3421 	}
3422 	else
3423 #endif
3424 	{
3425 	    while (col > 0
3426 		    && ((i == 0
3427 			    ? vim_iswordc(ptr[col - 1])
3428 			    : (!vim_iswhite(ptr[col - 1])
3429 				&& (!(find_type & FIND_IDENT)
3430 				    || !vim_iswordc(ptr[col - 1]))))
3431 #if defined(FEAT_BEVAL)
3432 			|| ((find_type & FIND_EVAL)
3433 			    && col > 1
3434 			    && find_is_eval_item(ptr + col - 1, &col,
3435 							       &bn, BACKWARD))
3436 #endif
3437 			))
3438 		--col;
3439 
3440 	    /* If we don't want just any old string, or we've found an
3441 	     * identifier, stop searching. */
3442 	    if (!(find_type & FIND_STRING) || vim_iswordc(ptr[col]))
3443 		break;
3444 	}
3445     }
3446 
3447     if (ptr[col] == NUL || (i == 0 && (
3448 #ifdef FEAT_MBYTE
3449 		has_mbyte ? this_class != 2 :
3450 #endif
3451 		!vim_iswordc(ptr[col]))))
3452     {
3453 	/*
3454 	 * didn't find an identifier or string
3455 	 */
3456 	if (find_type & FIND_STRING)
3457 	    EMSG(_("E348: No string under cursor"));
3458 	else
3459 	    EMSG(_("E349: No identifier under cursor"));
3460 	return 0;
3461     }
3462     ptr += col;
3463     *string = ptr;
3464 
3465     /*
3466      * 3. Find the end if the identifier/string.
3467      */
3468 #if defined(FEAT_BEVAL)
3469     bn = 0;
3470     startcol -= col;
3471 #endif
3472     col = 0;
3473 #ifdef FEAT_MBYTE
3474     if (has_mbyte)
3475     {
3476 	/* Search for point of changing multibyte character class. */
3477 	this_class = mb_get_class(ptr);
3478 	while (ptr[col] != NUL
3479 		&& ((i == 0 ? mb_get_class(ptr + col) == this_class
3480 			    : mb_get_class(ptr + col) != 0)
3481 # if defined(FEAT_BEVAL)
3482 		    || ((find_type & FIND_EVAL)
3483 			&& col <= (int)startcol
3484 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3485 # endif
3486 		))
3487 	    col += (*mb_ptr2len)(ptr + col);
3488     }
3489     else
3490 #endif
3491 	while ((i == 0 ? vim_iswordc(ptr[col])
3492 		       : (ptr[col] != NUL && !vim_iswhite(ptr[col])))
3493 # if defined(FEAT_BEVAL)
3494 		    || ((find_type & FIND_EVAL)
3495 			&& col <= (int)startcol
3496 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3497 # endif
3498 		)
3499 	{
3500 	    ++col;
3501 	}
3502 
3503     return col;
3504 }
3505 
3506 /*
3507  * Prepare for redo of a normal command.
3508  */
3509     static void
3510 prep_redo_cmd(cap)
3511     cmdarg_T  *cap;
3512 {
3513     prep_redo(cap->oap->regname, cap->count0,
3514 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
3515 }
3516 
3517 /*
3518  * Prepare for redo of any command.
3519  * Note that only the last argument can be a multi-byte char.
3520  */
3521     static void
3522 prep_redo(regname, num, cmd1, cmd2, cmd3, cmd4, cmd5)
3523     int	    regname;
3524     long    num;
3525     int	    cmd1;
3526     int	    cmd2;
3527     int	    cmd3;
3528     int	    cmd4;
3529     int	    cmd5;
3530 {
3531     ResetRedobuff();
3532     if (regname != 0)	/* yank from specified buffer */
3533     {
3534 	AppendCharToRedobuff('"');
3535 	AppendCharToRedobuff(regname);
3536     }
3537     if (num)
3538 	AppendNumberToRedobuff(num);
3539 
3540     if (cmd1 != NUL)
3541 	AppendCharToRedobuff(cmd1);
3542     if (cmd2 != NUL)
3543 	AppendCharToRedobuff(cmd2);
3544     if (cmd3 != NUL)
3545 	AppendCharToRedobuff(cmd3);
3546     if (cmd4 != NUL)
3547 	AppendCharToRedobuff(cmd4);
3548     if (cmd5 != NUL)
3549 	AppendCharToRedobuff(cmd5);
3550 }
3551 
3552 /*
3553  * check for operator active and clear it
3554  *
3555  * return TRUE if operator was active
3556  */
3557     static int
3558 checkclearop(oap)
3559     oparg_T	*oap;
3560 {
3561     if (oap->op_type == OP_NOP)
3562 	return FALSE;
3563     clearopbeep(oap);
3564     return TRUE;
3565 }
3566 
3567 /*
3568  * check for operator or Visual active and clear it
3569  *
3570  * return TRUE if operator was active
3571  */
3572     static int
3573 checkclearopq(oap)
3574     oparg_T	*oap;
3575 {
3576     if (oap->op_type == OP_NOP
3577 #ifdef FEAT_VISUAL
3578 	    && !VIsual_active
3579 #endif
3580 	    )
3581 	return FALSE;
3582     clearopbeep(oap);
3583     return TRUE;
3584 }
3585 
3586     static void
3587 clearop(oap)
3588     oparg_T	*oap;
3589 {
3590     oap->op_type = OP_NOP;
3591     oap->regname = 0;
3592     oap->motion_force = NUL;
3593     oap->use_reg_one = FALSE;
3594 }
3595 
3596     static void
3597 clearopbeep(oap)
3598     oparg_T	*oap;
3599 {
3600     clearop(oap);
3601     beep_flush();
3602 }
3603 
3604 #ifdef FEAT_VISUAL
3605 /*
3606  * Remove the shift modifier from a special key.
3607  */
3608     static void
3609 unshift_special(cap)
3610     cmdarg_T	*cap;
3611 {
3612     switch (cap->cmdchar)
3613     {
3614 	case K_S_RIGHT:	cap->cmdchar = K_RIGHT; break;
3615 	case K_S_LEFT:	cap->cmdchar = K_LEFT; break;
3616 	case K_S_UP:	cap->cmdchar = K_UP; break;
3617 	case K_S_DOWN:	cap->cmdchar = K_DOWN; break;
3618 	case K_S_HOME:	cap->cmdchar = K_HOME; break;
3619 	case K_S_END:	cap->cmdchar = K_END; break;
3620     }
3621     cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
3622 }
3623 #endif
3624 
3625 #if defined(FEAT_CMDL_INFO) || defined(PROTO)
3626 /*
3627  * Routines for displaying a partly typed command
3628  */
3629 
3630 #ifdef FEAT_VISUAL	/* need room for size of Visual area */
3631 # define SHOWCMD_BUFLEN SHOWCMD_COLS + 1 + 30
3632 #else
3633 # define SHOWCMD_BUFLEN SHOWCMD_COLS + 1
3634 #endif
3635 static char_u	showcmd_buf[SHOWCMD_BUFLEN];
3636 static char_u	old_showcmd_buf[SHOWCMD_BUFLEN];  /* For push_showcmd() */
3637 static int	showcmd_is_clear = TRUE;
3638 static int	showcmd_visual = FALSE;
3639 
3640 static void display_showcmd __ARGS((void));
3641 
3642     void
3643 clear_showcmd()
3644 {
3645     if (!p_sc)
3646 	return;
3647 
3648 #ifdef FEAT_VISUAL
3649     if (VIsual_active && !char_avail())
3650     {
3651 	int		i = lt(VIsual, curwin->w_cursor);
3652 	long		lines;
3653 	colnr_T		leftcol, rightcol;
3654 	linenr_T	top, bot;
3655 
3656 	/* Show the size of the Visual area. */
3657 	if (i)
3658 	{
3659 	    top = VIsual.lnum;
3660 	    bot = curwin->w_cursor.lnum;
3661 	}
3662 	else
3663 	{
3664 	    top = curwin->w_cursor.lnum;
3665 	    bot = VIsual.lnum;
3666 	}
3667 # ifdef FEAT_FOLDING
3668 	/* Include closed folds as a whole. */
3669 	hasFolding(top, &top, NULL);
3670 	hasFolding(bot, NULL, &bot);
3671 # endif
3672 	lines = bot - top + 1;
3673 
3674 	if (VIsual_mode == Ctrl_V)
3675 	{
3676 	    getvcols(curwin, &curwin->w_cursor, &VIsual, &leftcol, &rightcol);
3677 	    sprintf((char *)showcmd_buf, "%ldx%ld", lines,
3678 					      (long)(rightcol - leftcol + 1));
3679 	}
3680 	else if (VIsual_mode == 'V' || VIsual.lnum != curwin->w_cursor.lnum)
3681 	    sprintf((char *)showcmd_buf, "%ld", lines);
3682 	else
3683 	    sprintf((char *)showcmd_buf, "%ld", (long)(i
3684 		    ? curwin->w_cursor.col - VIsual.col
3685 		    : VIsual.col - curwin->w_cursor.col) + (*p_sel != 'e'));
3686 	showcmd_buf[SHOWCMD_COLS] = NUL;	/* truncate */
3687 	showcmd_visual = TRUE;
3688     }
3689     else
3690 #endif
3691     {
3692 	showcmd_buf[0] = NUL;
3693 	showcmd_visual = FALSE;
3694 
3695 	/* Don't actually display something if there is nothing to clear. */
3696 	if (showcmd_is_clear)
3697 	    return;
3698     }
3699 
3700     display_showcmd();
3701 }
3702 
3703 /*
3704  * Add 'c' to string of shown command chars.
3705  * Return TRUE if output has been written (and setcursor() has been called).
3706  */
3707     int
3708 add_to_showcmd(c)
3709     int		c;
3710 {
3711     char_u	*p;
3712     int		old_len;
3713     int		extra_len;
3714     int		overflow;
3715 #if defined(FEAT_MOUSE)
3716     int		i;
3717     static int	ignore[] =
3718     {
3719 # ifdef FEAT_GUI
3720 	K_VER_SCROLLBAR, K_HOR_SCROLLBAR,
3721 	K_LEFTMOUSE_NM, K_LEFTRELEASE_NM,
3722 # endif
3723 	K_IGNORE,
3724 	K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE,
3725 	K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
3726 	K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
3727 	K_MOUSEDOWN, K_MOUSEUP,
3728 	K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
3729 	K_CURSORHOLD,
3730 	0
3731     };
3732 #endif
3733 
3734     if (!p_sc || msg_silent != 0)
3735 	return FALSE;
3736 
3737     if (showcmd_visual)
3738     {
3739 	showcmd_buf[0] = NUL;
3740 	showcmd_visual = FALSE;
3741     }
3742 
3743 #if defined(FEAT_MOUSE)
3744     /* Ignore keys that are scrollbar updates and mouse clicks */
3745     if (IS_SPECIAL(c))
3746 	for (i = 0; ignore[i] != 0; ++i)
3747 	    if (ignore[i] == c)
3748 		return FALSE;
3749 #endif
3750 
3751     p = transchar(c);
3752     old_len = (int)STRLEN(showcmd_buf);
3753     extra_len = (int)STRLEN(p);
3754     overflow = old_len + extra_len - SHOWCMD_COLS;
3755     if (overflow > 0)
3756 	STRCPY(showcmd_buf, showcmd_buf + overflow);
3757     STRCAT(showcmd_buf, p);
3758 
3759     if (char_avail())
3760 	return FALSE;
3761 
3762     display_showcmd();
3763 
3764     return TRUE;
3765 }
3766 
3767     void
3768 add_to_showcmd_c(c)
3769     int		c;
3770 {
3771     if (!add_to_showcmd(c))
3772 	setcursor();
3773 }
3774 
3775 /*
3776  * Delete 'len' characters from the end of the shown command.
3777  */
3778     static void
3779 del_from_showcmd(len)
3780     int	    len;
3781 {
3782     int	    old_len;
3783 
3784     if (!p_sc)
3785 	return;
3786 
3787     old_len = (int)STRLEN(showcmd_buf);
3788     if (len > old_len)
3789 	len = old_len;
3790     showcmd_buf[old_len - len] = NUL;
3791 
3792     if (!char_avail())
3793 	display_showcmd();
3794 }
3795 
3796 /*
3797  * push_showcmd() and pop_showcmd() are used when waiting for the user to type
3798  * something and there is a partial mapping.
3799  */
3800     void
3801 push_showcmd()
3802 {
3803     if (p_sc)
3804 	STRCPY(old_showcmd_buf, showcmd_buf);
3805 }
3806 
3807     void
3808 pop_showcmd()
3809 {
3810     if (!p_sc)
3811 	return;
3812 
3813     STRCPY(showcmd_buf, old_showcmd_buf);
3814 
3815     display_showcmd();
3816 }
3817 
3818     static void
3819 display_showcmd()
3820 {
3821     int	    len;
3822 
3823     cursor_off();
3824 
3825     len = (int)STRLEN(showcmd_buf);
3826     if (len == 0)
3827 	showcmd_is_clear = TRUE;
3828     else
3829     {
3830 	screen_puts(showcmd_buf, (int)Rows - 1, sc_col, 0);
3831 	showcmd_is_clear = FALSE;
3832     }
3833 
3834     /*
3835      * clear the rest of an old message by outputing up to SHOWCMD_COLS spaces
3836      */
3837     screen_puts((char_u *)"          " + len, (int)Rows - 1, sc_col + len, 0);
3838 
3839     setcursor();	    /* put cursor back where it belongs */
3840 }
3841 #endif
3842 
3843 #ifdef FEAT_SCROLLBIND
3844 /*
3845  * When "check" is FALSE, prepare for commands that scroll the window.
3846  * When "check" is TRUE, take care of scroll-binding after the window has
3847  * scrolled.  Called from normal_cmd() and edit().
3848  */
3849     void
3850 do_check_scrollbind(check)
3851     int		check;
3852 {
3853     static win_T	*old_curwin = NULL;
3854     static linenr_T	old_topline = 0;
3855 #ifdef FEAT_DIFF
3856     static int		old_topfill = 0;
3857 #endif
3858     static buf_T	*old_buf = NULL;
3859     static colnr_T	old_leftcol = 0;
3860 
3861     if (check && curwin->w_p_scb)
3862     {
3863 	/* If a ":syncbind" command was just used, don't scroll, only reset
3864 	 * the values. */
3865 	if (did_syncbind)
3866 	    did_syncbind = FALSE;
3867 	else if (curwin == old_curwin)
3868 	{
3869 	    /*
3870 	     * Synchronize other windows, as necessary according to
3871 	     * 'scrollbind'.  Don't do this after an ":edit" command, except
3872 	     * when 'diff' is set.
3873 	     */
3874 	    if ((curwin->w_buffer == old_buf
3875 #ifdef FEAT_DIFF
3876 			|| curwin->w_p_diff
3877 #endif
3878 		)
3879 		&& (curwin->w_topline != old_topline
3880 #ifdef FEAT_DIFF
3881 			|| curwin->w_topfill != old_topfill
3882 #endif
3883 			|| curwin->w_leftcol != old_leftcol))
3884 	    {
3885 		check_scrollbind(curwin->w_topline - old_topline,
3886 			(long)(curwin->w_leftcol - old_leftcol));
3887 	    }
3888 	}
3889 	else if (vim_strchr(p_sbo, 'j')) /* jump flag set in 'scrollopt' */
3890 	{
3891 	    /*
3892 	     * When switching between windows, make sure that the relative
3893 	     * vertical offset is valid for the new window.  The relative
3894 	     * offset is invalid whenever another 'scrollbind' window has
3895 	     * scrolled to a point that would force the current window to
3896 	     * scroll past the beginning or end of its buffer.  When the
3897 	     * resync is performed, some of the other 'scrollbind' windows may
3898 	     * need to jump so that the current window's relative position is
3899 	     * visible on-screen.
3900 	     */
3901 	    check_scrollbind(curwin->w_topline - curwin->w_scbind_pos, 0L);
3902 	}
3903 	curwin->w_scbind_pos = curwin->w_topline;
3904     }
3905 
3906     old_curwin = curwin;
3907     old_topline = curwin->w_topline;
3908 #ifdef FEAT_DIFF
3909     old_topfill = curwin->w_topfill;
3910 #endif
3911     old_buf = curwin->w_buffer;
3912     old_leftcol = curwin->w_leftcol;
3913 }
3914 
3915 /*
3916  * Synchronize any windows that have "scrollbind" set, based on the
3917  * number of rows by which the current window has changed
3918  * (1998-11-02 16:21:01  R. Edward Ralston <[email protected]>)
3919  */
3920     void
3921 check_scrollbind(topline_diff, leftcol_diff)
3922     linenr_T	topline_diff;
3923     long	leftcol_diff;
3924 {
3925     int		want_ver;
3926     int		want_hor;
3927     win_T	*old_curwin = curwin;
3928     buf_T	*old_curbuf = curbuf;
3929 #ifdef FEAT_VISUAL
3930     int		old_VIsual_select = VIsual_select;
3931     int		old_VIsual_active = VIsual_active;
3932 #endif
3933     colnr_T	tgt_leftcol = curwin->w_leftcol;
3934     long	topline;
3935     long	y;
3936 
3937     /*
3938      * check 'scrollopt' string for vertical and horizontal scroll options
3939      */
3940     want_ver = (vim_strchr(p_sbo, 'v') && topline_diff != 0);
3941 #ifdef FEAT_DIFF
3942     want_ver |= old_curwin->w_p_diff;
3943 #endif
3944     want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || topline_diff != 0));
3945 
3946     /*
3947      * loop through the scrollbound windows and scroll accordingly
3948      */
3949 #ifdef FEAT_VISUAL
3950     VIsual_select = VIsual_active = 0;
3951 #endif
3952     for (curwin = firstwin; curwin; curwin = curwin->w_next)
3953     {
3954 	curbuf = curwin->w_buffer;
3955 	/* skip original window  and windows with 'noscrollbind' */
3956 	if (curwin != old_curwin && curwin->w_p_scb)
3957 	{
3958 	    /*
3959 	     * do the vertical scroll
3960 	     */
3961 	    if (want_ver)
3962 	    {
3963 #ifdef FEAT_DIFF
3964 		if (old_curwin->w_p_diff && curwin->w_p_diff)
3965 		{
3966 		    diff_set_topline(old_curwin, curwin);
3967 		}
3968 		else
3969 #endif
3970 		{
3971 		    curwin->w_scbind_pos += topline_diff;
3972 		    topline = curwin->w_scbind_pos;
3973 		    if (topline > curbuf->b_ml.ml_line_count)
3974 			topline = curbuf->b_ml.ml_line_count;
3975 		    if (topline < 1)
3976 			topline = 1;
3977 
3978 		    y = topline - curwin->w_topline;
3979 		    if (y > 0)
3980 			scrollup(y, FALSE);
3981 		    else
3982 			scrolldown(-y, FALSE);
3983 		}
3984 
3985 		redraw_later(VALID);
3986 		cursor_correct();
3987 #ifdef FEAT_WINDOWS
3988 		curwin->w_redr_status = TRUE;
3989 #endif
3990 	    }
3991 
3992 	    /*
3993 	     * do the horizontal scroll
3994 	     */
3995 	    if (want_hor && curwin->w_leftcol != tgt_leftcol)
3996 	    {
3997 		curwin->w_leftcol = tgt_leftcol;
3998 		leftcol_changed();
3999 	    }
4000 	}
4001     }
4002 
4003     /*
4004      * reset current-window
4005      */
4006 #ifdef FEAT_VISUAL
4007     VIsual_select = old_VIsual_select;
4008     VIsual_active = old_VIsual_active;
4009 #endif
4010     curwin = old_curwin;
4011     curbuf = old_curbuf;
4012 }
4013 #endif /* #ifdef FEAT_SCROLLBIND */
4014 
4015 /*
4016  * Command character that's ignored.
4017  * Used for CTRL-Q and CTRL-S to avoid problems with terminals that use
4018  * xon/xoff
4019  */
4020     static void
4021 nv_ignore(cap)
4022     cmdarg_T	*cap;
4023 {
4024     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
4025 }
4026 
4027 /*
4028  * Command character that doesn't do anything, but unlike nv_ignore() does
4029  * start edit().  Used for "startinsert" executed while starting up.
4030  */
4031 /*ARGSUSED */
4032     static void
4033 nv_nop(cap)
4034     cmdarg_T	*cap;
4035 {
4036 }
4037 
4038 /*
4039  * Command character doesn't exist.
4040  */
4041     static void
4042 nv_error(cap)
4043     cmdarg_T	*cap;
4044 {
4045     clearopbeep(cap->oap);
4046 }
4047 
4048 /*
4049  * <Help> and <F1> commands.
4050  */
4051     static void
4052 nv_help(cap)
4053     cmdarg_T	*cap;
4054 {
4055     if (!checkclearopq(cap->oap))
4056 	ex_help(NULL);
4057 }
4058 
4059 /*
4060  * CTRL-A and CTRL-X: Add or subtract from letter or number under cursor.
4061  */
4062     static void
4063 nv_addsub(cap)
4064     cmdarg_T	*cap;
4065 {
4066     if (!checkclearopq(cap->oap)
4067 	    && do_addsub((int)cap->cmdchar, cap->count1) == OK)
4068 	prep_redo_cmd(cap);
4069 }
4070 
4071 /*
4072  * CTRL-F, CTRL-B, etc: Scroll page up or down.
4073  */
4074     static void
4075 nv_page(cap)
4076     cmdarg_T	*cap;
4077 {
4078     if (!checkclearop(cap->oap))
4079     {
4080 #ifdef FEAT_WINDOWS
4081 	if (mod_mask & MOD_MASK_CTRL)
4082 	{
4083 	    /* <C-PageUp>: tab page back; <C-PageDown>: tab page forward */
4084 	    if (cap->arg == BACKWARD)
4085 		goto_tabpage(-(int)cap->count1);
4086 	    else
4087 		goto_tabpage((int)cap->count0);
4088 	}
4089 	else
4090 #endif
4091 	(void)onepage(cap->arg, cap->count1);
4092     }
4093 }
4094 
4095 /*
4096  * Implementation of "gd" and "gD" command.
4097  */
4098     static void
4099 nv_gd(oap, nchar, thisblock)
4100     oparg_T	*oap;
4101     int		nchar;
4102     int		thisblock;	/* 1 for "1gd" and "1gD" */
4103 {
4104     int		len;
4105     char_u	*ptr;
4106 
4107     if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
4108 	    || find_decl(ptr, len, nchar == 'd', thisblock, 0) == FAIL)
4109 	clearopbeep(oap);
4110 #ifdef FEAT_FOLDING
4111     else if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
4112 	foldOpenCursor();
4113 #endif
4114 }
4115 
4116 /*
4117  * Search for variable declaration of "ptr[len]".
4118  * When "locally" is TRUE in the current function ("gd"), otherwise in the
4119  * current file ("gD").
4120  * When "thisblock" is TRUE check the {} block scope.
4121  * Return FAIL when not found.
4122  */
4123     int
4124 find_decl(ptr, len, locally, thisblock, searchflags)
4125     char_u	*ptr;
4126     int		len;
4127     int		locally;
4128     int		thisblock;
4129     int		searchflags;	/* flags passed to searchit() */
4130 {
4131     char_u	*pat;
4132     pos_T	old_pos;
4133     pos_T	par_pos;
4134     pos_T	found_pos;
4135     int		t;
4136     int		save_p_ws;
4137     int		save_p_scs;
4138     int		retval = OK;
4139     int		incl;
4140 
4141     if ((pat = alloc(len + 7)) == NULL)
4142 	return FAIL;
4143 
4144     /* Put "\V" before the pattern to avoid that the special meaning of "."
4145      * and "~" causes trouble. */
4146     sprintf((char *)pat, vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
4147 								    len, ptr);
4148     old_pos = curwin->w_cursor;
4149     save_p_ws = p_ws;
4150     save_p_scs = p_scs;
4151     p_ws = FALSE;	/* don't wrap around end of file now */
4152     p_scs = FALSE;	/* don't switch ignorecase off now */
4153 
4154     /*
4155      * With "gD" go to line 1.
4156      * With "gd" Search back for the start of the current function, then go
4157      * back until a blank line.  If this fails go to line 1.
4158      */
4159     if (!locally || !findpar(&incl, BACKWARD, 1L, '{', FALSE))
4160     {
4161 	setpcmark();			/* Set in findpar() otherwise */
4162 	curwin->w_cursor.lnum = 1;
4163 	par_pos = curwin->w_cursor;
4164     }
4165     else
4166     {
4167 	par_pos = curwin->w_cursor;
4168 	while (curwin->w_cursor.lnum > 1 && *skipwhite(ml_get_curline()) != NUL)
4169 	    --curwin->w_cursor.lnum;
4170     }
4171     curwin->w_cursor.col = 0;
4172 
4173     /* Search forward for the identifier, ignore comment lines. */
4174     clearpos(&found_pos);
4175     for (;;)
4176     {
4177 	t = searchit(curwin, curbuf, &curwin->w_cursor, FORWARD,
4178 				  pat, 1L, searchflags, RE_LAST, (linenr_T)0);
4179 	if (curwin->w_cursor.lnum >= old_pos.lnum)
4180 	    t = FAIL;	/* match after start is failure too */
4181 
4182 	if (thisblock && t != FAIL)
4183 	{
4184 	    pos_T	*pos;
4185 
4186 	    /* Check that the block the match is in doesn't end before the
4187 	     * position where we started the search from. */
4188 	    if ((pos = findmatchlimit(NULL, '}', FM_FORWARD,
4189 		     (int)(old_pos.lnum - curwin->w_cursor.lnum + 1))) != NULL
4190 		    && pos->lnum < old_pos.lnum)
4191 		continue;
4192 	}
4193 
4194 	if (t == FAIL)
4195 	{
4196 	    /* If we previously found a valid position, use it. */
4197 	    if (found_pos.lnum != 0)
4198 	    {
4199 		curwin->w_cursor = found_pos;
4200 		t = OK;
4201 	    }
4202 	    break;
4203 	}
4204 #ifdef FEAT_COMMENTS
4205 	if (get_leader_len(ml_get_curline(), NULL, FALSE) > 0)
4206 	{
4207 	    /* Ignore this line, continue at start of next line. */
4208 	    ++curwin->w_cursor.lnum;
4209 	    curwin->w_cursor.col = 0;
4210 	    continue;
4211 	}
4212 #endif
4213 	if (!locally)	/* global search: use first match found */
4214 	    break;
4215 	if (curwin->w_cursor.lnum >= par_pos.lnum)
4216 	{
4217 	    /* If we previously found a valid position, use it. */
4218 	    if (found_pos.lnum != 0)
4219 		curwin->w_cursor = found_pos;
4220 	    break;
4221 	}
4222 
4223 	/* For finding a local variable and the match is before the "{" search
4224 	 * to find a later match.  For K&R style function declarations this
4225 	 * skips the function header without types. */
4226 	found_pos = curwin->w_cursor;
4227     }
4228 
4229     if (t == FAIL)
4230     {
4231 	retval = FAIL;
4232 	curwin->w_cursor = old_pos;
4233     }
4234     else
4235     {
4236 	curwin->w_set_curswant = TRUE;
4237 	/* "n" searches forward now */
4238 	reset_search_dir();
4239     }
4240 
4241     vim_free(pat);
4242     p_ws = save_p_ws;
4243     p_scs = save_p_scs;
4244 
4245     return retval;
4246 }
4247 
4248 /*
4249  * Move 'dist' lines in direction 'dir', counting lines by *screen*
4250  * lines rather than lines in the file.
4251  * 'dist' must be positive.
4252  *
4253  * Return OK if able to move cursor, FAIL otherwise.
4254  */
4255     static int
4256 nv_screengo(oap, dir, dist)
4257     oparg_T	*oap;
4258     int		dir;
4259     long	dist;
4260 {
4261     int		linelen = linetabsize(ml_get_curline());
4262     int		retval = OK;
4263     int		atend = FALSE;
4264     int		n;
4265     int		col_off1;	/* margin offset for first screen line */
4266     int		col_off2;	/* margin offset for wrapped screen line */
4267     int		width1;		/* text width for first screen line */
4268     int		width2;		/* test width for wrapped screen line */
4269 
4270     oap->motion_type = MCHAR;
4271     oap->inclusive = FALSE;
4272 
4273     col_off1 = curwin_col_off();
4274     col_off2 = col_off1 - curwin_col_off2();
4275     width1 = W_WIDTH(curwin) - col_off1;
4276     width2 = W_WIDTH(curwin) - col_off2;
4277 
4278 #ifdef FEAT_VERTSPLIT
4279     if (curwin->w_width != 0)
4280     {
4281 #endif
4282       /*
4283        * Instead of sticking at the last character of the buffer line we
4284        * try to stick in the last column of the screen.
4285        */
4286       if (curwin->w_curswant == MAXCOL)
4287       {
4288 	atend = TRUE;
4289 	validate_virtcol();
4290 	if (width1 <= 0)
4291 	    curwin->w_curswant = 0;
4292 	else
4293 	{
4294 	    curwin->w_curswant = width1 - 1;
4295 	    if (curwin->w_virtcol > curwin->w_curswant)
4296 		curwin->w_curswant += ((curwin->w_virtcol
4297 			     - curwin->w_curswant - 1) / width2 + 1) * width2;
4298 	}
4299       }
4300       else
4301       {
4302 	if (linelen > width1)
4303 	    n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4304 	else
4305 	    n = width1;
4306 	if (curwin->w_curswant > (colnr_T)n + 1)
4307 	    curwin->w_curswant -= ((curwin->w_curswant - n) / width2 + 1)
4308 								     * width2;
4309       }
4310 
4311       while (dist--)
4312       {
4313 	if (dir == BACKWARD)
4314 	{
4315 	    if ((long)curwin->w_curswant >= width2)
4316 		/* move back within line */
4317 		curwin->w_curswant -= width2;
4318 	    else
4319 	    {
4320 		/* to previous line */
4321 		if (curwin->w_cursor.lnum == 1)
4322 		{
4323 		    retval = FAIL;
4324 		    break;
4325 		}
4326 		--curwin->w_cursor.lnum;
4327 #ifdef FEAT_FOLDING
4328 		/* Move to the start of a closed fold.  Don't do that when
4329 		 * 'foldopen' contains "all": it will open in a moment. */
4330 		if (!(fdo_flags & FDO_ALL))
4331 		    (void)hasFolding(curwin->w_cursor.lnum,
4332 						&curwin->w_cursor.lnum, NULL);
4333 #endif
4334 		linelen = linetabsize(ml_get_curline());
4335 		if (linelen > width1)
4336 		    curwin->w_curswant += (((linelen - width1 - 1) / width2)
4337 								+ 1) * width2;
4338 	    }
4339 	}
4340 	else /* dir == FORWARD */
4341 	{
4342 	    if (linelen > width1)
4343 		n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4344 	    else
4345 		n = width1;
4346 	    if (curwin->w_curswant + width2 < (colnr_T)n)
4347 		/* move forward within line */
4348 		curwin->w_curswant += width2;
4349 	    else
4350 	    {
4351 		/* to next line */
4352 #ifdef FEAT_FOLDING
4353 		/* Move to the end of a closed fold. */
4354 		(void)hasFolding(curwin->w_cursor.lnum, NULL,
4355 						      &curwin->w_cursor.lnum);
4356 #endif
4357 		if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4358 		{
4359 		    retval = FAIL;
4360 		    break;
4361 		}
4362 		curwin->w_cursor.lnum++;
4363 		curwin->w_curswant %= width2;
4364 	    }
4365 	}
4366       }
4367 #ifdef FEAT_VERTSPLIT
4368     }
4369 #endif
4370 
4371     coladvance(curwin->w_curswant);
4372 
4373 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
4374     if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
4375     {
4376 	/*
4377 	 * Check for landing on a character that got split at the end of the
4378 	 * last line.  We want to advance a screenline, not end up in the same
4379 	 * screenline or move two screenlines.
4380 	 */
4381 	validate_virtcol();
4382 	if (curwin->w_virtcol > curwin->w_curswant
4383 		&& (curwin->w_curswant < (colnr_T)width1
4384 		    ? (curwin->w_curswant > (colnr_T)width1 / 2)
4385 		    : ((curwin->w_curswant - width1) % width2
4386 						      > (colnr_T)width2 / 2)))
4387 	    --curwin->w_cursor.col;
4388     }
4389 #endif
4390 
4391     if (atend)
4392 	curwin->w_curswant = MAXCOL;	    /* stick in the last column */
4393 
4394     return retval;
4395 }
4396 
4397 #ifdef FEAT_MOUSE
4398 /*
4399  * Mouse scroll wheel: Default action is to scroll three lines, or one page
4400  * when Shift or Ctrl is used.
4401  * K_MOUSEUP (cap->arg == TRUE) or K_MOUSEDOWN (cap->arg == FALSE)
4402  */
4403     static void
4404 nv_mousescroll(cap)
4405     cmdarg_T	*cap;
4406 {
4407 # if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
4408     win_T *old_curwin = curwin;
4409 
4410     /* Currently we only get the mouse coordinates in the GUI. */
4411     if (gui.in_use && mouse_row >= 0 && mouse_col >= 0)
4412     {
4413 	int row, col;
4414 
4415 	row = mouse_row;
4416 	col = mouse_col;
4417 
4418 	/* find the window at the pointer coordinates */
4419 	curwin = mouse_find_win(&row, &col);
4420 	curbuf = curwin->w_buffer;
4421     }
4422 # endif
4423 
4424     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4425     {
4426 	(void)onepage(cap->arg ? FORWARD : BACKWARD, 1L);
4427     }
4428     else
4429     {
4430 	cap->count1 = 3;
4431 	cap->count0 = 3;
4432 	nv_scroll_line(cap);
4433     }
4434 
4435 # if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
4436     curwin->w_redr_status = TRUE;
4437 
4438     curwin = old_curwin;
4439     curbuf = curwin->w_buffer;
4440 # endif
4441 }
4442 
4443 /*
4444  * Mouse clicks and drags.
4445  */
4446     static void
4447 nv_mouse(cap)
4448     cmdarg_T	*cap;
4449 {
4450     (void)do_mouse(cap->oap, cap->cmdchar, BACKWARD, cap->count1, 0);
4451 }
4452 #endif
4453 
4454 /*
4455  * Handle CTRL-E and CTRL-Y commands: scroll a line up or down.
4456  * cap->arg must be TRUE for CTRL-E.
4457  */
4458     static void
4459 nv_scroll_line(cap)
4460     cmdarg_T	*cap;
4461 {
4462     if (!checkclearop(cap->oap))
4463 	scroll_redraw(cap->arg, cap->count1);
4464 }
4465 
4466 /*
4467  * Scroll "count" lines up or down, and redraw.
4468  */
4469     void
4470 scroll_redraw(up, count)
4471     int		up;
4472     long	count;
4473 {
4474     linenr_T	prev_topline = curwin->w_topline;
4475 #ifdef FEAT_DIFF
4476     int		prev_topfill = curwin->w_topfill;
4477 #endif
4478     linenr_T	prev_lnum = curwin->w_cursor.lnum;
4479 
4480     if (up)
4481 	scrollup(count, TRUE);
4482     else
4483 	scrolldown(count, TRUE);
4484     if (p_so)
4485     {
4486 	/* Adjust the cursor position for 'scrolloff'.  Mark w_topline as
4487 	 * valid, otherwise the screen jumps back at the end of the file. */
4488 	cursor_correct();
4489 	check_cursor_moved(curwin);
4490 	curwin->w_valid |= VALID_TOPLINE;
4491 
4492 	/* If moved back to where we were, at least move the cursor, otherwise
4493 	 * we get stuck at one position.  Don't move the cursor up if the
4494 	 * first line of the buffer is already on the screen */
4495 	while (curwin->w_topline == prev_topline
4496 #ifdef FEAT_DIFF
4497 		&& curwin->w_topfill == prev_topfill
4498 #endif
4499 		)
4500 	{
4501 	    if (up)
4502 	    {
4503 		if (curwin->w_cursor.lnum > prev_lnum
4504 			|| cursor_down(1L, FALSE) == FAIL)
4505 		    break;
4506 	    }
4507 	    else
4508 	    {
4509 		if (curwin->w_cursor.lnum < prev_lnum
4510 			|| prev_topline == 1L
4511 			|| cursor_up(1L, FALSE) == FAIL)
4512 		    break;
4513 	    }
4514 	    /* Mark w_topline as valid, otherwise the screen jumps back at the
4515 	     * end of the file. */
4516 	    check_cursor_moved(curwin);
4517 	    curwin->w_valid |= VALID_TOPLINE;
4518 	}
4519     }
4520     if (curwin->w_cursor.lnum != prev_lnum)
4521 	coladvance(curwin->w_curswant);
4522     redraw_later(VALID);
4523 }
4524 
4525 /*
4526  * Commands that start with "z".
4527  */
4528     static void
4529 nv_zet(cap)
4530     cmdarg_T  *cap;
4531 {
4532     long	n;
4533     colnr_T	col;
4534     int		nchar = cap->nchar;
4535 #ifdef FEAT_FOLDING
4536     long	old_fdl = curwin->w_p_fdl;
4537     int		old_fen = curwin->w_p_fen;
4538 #endif
4539 #ifdef FEAT_SPELL
4540     int		undo = FALSE;
4541 #endif
4542 
4543     if (VIM_ISDIGIT(nchar))
4544     {
4545 	/*
4546 	 * "z123{nchar}": edit the count before obtaining {nchar}
4547 	 */
4548 	if (checkclearop(cap->oap))
4549 	    return;
4550 	n = nchar - '0';
4551 	for (;;)
4552 	{
4553 #ifdef USE_ON_FLY_SCROLL
4554 	    dont_scroll = TRUE;		/* disallow scrolling here */
4555 #endif
4556 	    ++no_mapping;
4557 	    ++allow_keys;   /* no mapping for nchar, but allow key codes */
4558 	    nchar = safe_vgetc();
4559 #ifdef FEAT_LANGMAP
4560 	    LANGMAP_ADJUST(nchar, TRUE);
4561 #endif
4562 	    --no_mapping;
4563 	    --allow_keys;
4564 #ifdef FEAT_CMDL_INFO
4565 	    (void)add_to_showcmd(nchar);
4566 #endif
4567 	    if (nchar == K_DEL || nchar == K_KDEL)
4568 		n /= 10;
4569 	    else if (VIM_ISDIGIT(nchar))
4570 		n = n * 10 + (nchar - '0');
4571 	    else if (nchar == CAR)
4572 	    {
4573 #ifdef FEAT_GUI
4574 		need_mouse_correct = TRUE;
4575 #endif
4576 		win_setheight((int)n);
4577 		break;
4578 	    }
4579 	    else if (nchar == 'l'
4580 		    || nchar == 'h'
4581 		    || nchar == K_LEFT
4582 		    || nchar == K_RIGHT)
4583 	    {
4584 		cap->count1 = n ? n * cap->count1 : cap->count1;
4585 		goto dozet;
4586 	    }
4587 	    else
4588 	    {
4589 		clearopbeep(cap->oap);
4590 		break;
4591 	    }
4592 	}
4593 	cap->oap->op_type = OP_NOP;
4594 	return;
4595     }
4596 
4597 dozet:
4598     if (
4599 #ifdef FEAT_FOLDING
4600 	    /* "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
4601 	     * and "zC" only in Visual mode.  "zj" and "zk" are motion
4602 	     * commands. */
4603 	    cap->nchar != 'f' && cap->nchar != 'F'
4604 	    && !(VIsual_active && vim_strchr((char_u *)"dcCoO", cap->nchar))
4605 	    && cap->nchar != 'j' && cap->nchar != 'k'
4606 	    &&
4607 #endif
4608 	    checkclearop(cap->oap))
4609 	return;
4610 
4611     /*
4612      * For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
4613      * If line number given, set cursor.
4614      */
4615     if ((vim_strchr((char_u *)"+\r\nt.z^-b", nchar) != NULL)
4616 	    && cap->count0
4617 	    && cap->count0 != curwin->w_cursor.lnum)
4618     {
4619 	setpcmark();
4620 	if (cap->count0 > curbuf->b_ml.ml_line_count)
4621 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4622 	else
4623 	    curwin->w_cursor.lnum = cap->count0;
4624 	check_cursor_col();
4625     }
4626 
4627     switch (nchar)
4628     {
4629 		/* "z+", "z<CR>" and "zt": put cursor at top of screen */
4630     case '+':
4631 		if (cap->count0 == 0)
4632 		{
4633 		    /* No count given: put cursor at the line below screen */
4634 		    validate_botline();	/* make sure w_botline is valid */
4635 		    if (curwin->w_botline > curbuf->b_ml.ml_line_count)
4636 			curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4637 		    else
4638 			curwin->w_cursor.lnum = curwin->w_botline;
4639 		}
4640 		/* FALLTHROUGH */
4641     case NL:
4642     case CAR:
4643     case K_KENTER:
4644 		beginline(BL_WHITE | BL_FIX);
4645 		/* FALLTHROUGH */
4646 
4647     case 't':	scroll_cursor_top(0, TRUE);
4648 		redraw_later(VALID);
4649 		break;
4650 
4651 		/* "z." and "zz": put cursor in middle of screen */
4652     case '.':	beginline(BL_WHITE | BL_FIX);
4653 		/* FALLTHROUGH */
4654 
4655     case 'z':	scroll_cursor_halfway(TRUE);
4656 		redraw_later(VALID);
4657 		break;
4658 
4659 		/* "z^", "z-" and "zb": put cursor at bottom of screen */
4660     case '^':	/* Strange Vi behavior: <count>z^ finds line at top of window
4661 		 * when <count> is at bottom of window, and puts that one at
4662 		 * bottom of window. */
4663 		if (cap->count0 != 0)
4664 		{
4665 		    scroll_cursor_bot(0, TRUE);
4666 		    curwin->w_cursor.lnum = curwin->w_topline;
4667 		}
4668 		else if (curwin->w_topline == 1)
4669 		    curwin->w_cursor.lnum = 1;
4670 		else
4671 		    curwin->w_cursor.lnum = curwin->w_topline - 1;
4672 		/* FALLTHROUGH */
4673     case '-':
4674 		beginline(BL_WHITE | BL_FIX);
4675 		/* FALLTHROUGH */
4676 
4677     case 'b':	scroll_cursor_bot(0, TRUE);
4678 		redraw_later(VALID);
4679 		break;
4680 
4681 		/* "zH" - scroll screen right half-page */
4682     case 'H':
4683 		cap->count1 *= W_WIDTH(curwin) / 2;
4684 		/* FALLTHROUGH */
4685 
4686 		/* "zh" - scroll screen to the right */
4687     case 'h':
4688     case K_LEFT:
4689 		if (!curwin->w_p_wrap)
4690 		{
4691 		    if ((colnr_T)cap->count1 > curwin->w_leftcol)
4692 			curwin->w_leftcol = 0;
4693 		    else
4694 			curwin->w_leftcol -= (colnr_T)cap->count1;
4695 		    leftcol_changed();
4696 		}
4697 		break;
4698 
4699 		/* "zL" - scroll screen left half-page */
4700     case 'L':	cap->count1 *= W_WIDTH(curwin) / 2;
4701 		/* FALLTHROUGH */
4702 
4703 		/* "zl" - scroll screen to the left */
4704     case 'l':
4705     case K_RIGHT:
4706 		if (!curwin->w_p_wrap)
4707 		{
4708 		    /* scroll the window left */
4709 		    curwin->w_leftcol += (colnr_T)cap->count1;
4710 		    leftcol_changed();
4711 		}
4712 		break;
4713 
4714 		/* "zs" - scroll screen, cursor at the start */
4715     case 's':	if (!curwin->w_p_wrap)
4716 		{
4717 #ifdef FEAT_FOLDING
4718 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4719 			col = 0;	/* like the cursor is in col 0 */
4720 		    else
4721 #endif
4722 		    getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
4723 		    if ((long)col > p_siso)
4724 			col -= p_siso;
4725 		    else
4726 			col = 0;
4727 		    if (curwin->w_leftcol != col)
4728 		    {
4729 			curwin->w_leftcol = col;
4730 			redraw_later(NOT_VALID);
4731 		    }
4732 		}
4733 		break;
4734 
4735 		/* "ze" - scroll screen, cursor at the end */
4736     case 'e':	if (!curwin->w_p_wrap)
4737 		{
4738 #ifdef FEAT_FOLDING
4739 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4740 			col = 0;	/* like the cursor is in col 0 */
4741 		    else
4742 #endif
4743 		    getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
4744 		    n = W_WIDTH(curwin) - curwin_col_off();
4745 		    if ((long)col + p_siso < n)
4746 			col = 0;
4747 		    else
4748 			col = col + p_siso - n + 1;
4749 		    if (curwin->w_leftcol != col)
4750 		    {
4751 			curwin->w_leftcol = col;
4752 			redraw_later(NOT_VALID);
4753 		    }
4754 		}
4755 		break;
4756 
4757 #ifdef FEAT_FOLDING
4758 		/* "zF": create fold command */
4759 		/* "zf": create fold operator */
4760     case 'F':
4761     case 'f':   if (foldManualAllowed(TRUE))
4762 		{
4763 		    cap->nchar = 'f';
4764 		    nv_operator(cap);
4765 		    curwin->w_p_fen = TRUE;
4766 
4767 		    /* "zF" is like "zfzf" */
4768 		    if (nchar == 'F' && cap->oap->op_type == OP_FOLD)
4769 		    {
4770 			nv_operator(cap);
4771 			finish_op = TRUE;
4772 		    }
4773 		}
4774 		else
4775 		    clearopbeep(cap->oap);
4776 		break;
4777 
4778 		/* "zd": delete fold at cursor */
4779 		/* "zD": delete fold at cursor recursively */
4780     case 'd':
4781     case 'D':	if (foldManualAllowed(FALSE))
4782 		{
4783 		    if (VIsual_active)
4784 			nv_operator(cap);
4785 		    else
4786 			deleteFold(curwin->w_cursor.lnum,
4787 				  curwin->w_cursor.lnum, nchar == 'D', FALSE);
4788 		}
4789 		break;
4790 
4791 		/* "zE": erease all folds */
4792     case 'E':	if (foldmethodIsManual(curwin))
4793 		{
4794 		    clearFolding(curwin);
4795 		    changed_window_setting();
4796 		}
4797 		else if (foldmethodIsMarker(curwin))
4798 		    deleteFold((linenr_T)1, curbuf->b_ml.ml_line_count,
4799 								 TRUE, FALSE);
4800 		else
4801 		    EMSG(_("E352: Cannot erase folds with current 'foldmethod'"));
4802 		break;
4803 
4804 		/* "zn": fold none: reset 'foldenable' */
4805     case 'n':	curwin->w_p_fen = FALSE;
4806 		break;
4807 
4808 		/* "zN": fold Normal: set 'foldenable' */
4809     case 'N':	curwin->w_p_fen = TRUE;
4810 		break;
4811 
4812 		/* "zi": invert folding: toggle 'foldenable' */
4813     case 'i':	curwin->w_p_fen = !curwin->w_p_fen;
4814 		break;
4815 
4816 		/* "za": open closed fold or close open fold at cursor */
4817     case 'a':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4818 		    openFold(curwin->w_cursor.lnum, cap->count1);
4819 		else
4820 		{
4821 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4822 		    curwin->w_p_fen = TRUE;
4823 		}
4824 		break;
4825 
4826 		/* "zA": open fold at cursor recursively */
4827     case 'A':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4828 		    openFoldRecurse(curwin->w_cursor.lnum);
4829 		else
4830 		{
4831 		    closeFoldRecurse(curwin->w_cursor.lnum);
4832 		    curwin->w_p_fen = TRUE;
4833 		}
4834 		break;
4835 
4836 		/* "zo": open fold at cursor or Visual area */
4837     case 'o':	if (VIsual_active)
4838 		    nv_operator(cap);
4839 		else
4840 		    openFold(curwin->w_cursor.lnum, cap->count1);
4841 		break;
4842 
4843 		/* "zO": open fold recursively */
4844     case 'O':	if (VIsual_active)
4845 		    nv_operator(cap);
4846 		else
4847 		    openFoldRecurse(curwin->w_cursor.lnum);
4848 		break;
4849 
4850 		/* "zc": close fold at cursor or Visual area */
4851     case 'c':	if (VIsual_active)
4852 		    nv_operator(cap);
4853 		else
4854 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4855 		curwin->w_p_fen = TRUE;
4856 		break;
4857 
4858 		/* "zC": close fold recursively */
4859     case 'C':	if (VIsual_active)
4860 		    nv_operator(cap);
4861 		else
4862 		    closeFoldRecurse(curwin->w_cursor.lnum);
4863 		curwin->w_p_fen = TRUE;
4864 		break;
4865 
4866 		/* "zv": open folds at the cursor */
4867     case 'v':	foldOpenCursor();
4868 		break;
4869 
4870 		/* "zx": re-apply 'foldlevel' and open folds at the cursor */
4871     case 'x':	curwin->w_p_fen = TRUE;
4872 		newFoldLevel();		/* update right now */
4873 		foldOpenCursor();
4874 		break;
4875 
4876 		/* "zX": undo manual opens/closes, re-apply 'foldlevel' */
4877     case 'X':	curwin->w_p_fen = TRUE;
4878 		old_fdl = -1;		/* force an update */
4879 		break;
4880 
4881 		/* "zm": fold more */
4882     case 'm':	if (curwin->w_p_fdl > 0)
4883 		    --curwin->w_p_fdl;
4884 		old_fdl = -1;		/* force an update */
4885 		curwin->w_p_fen = TRUE;
4886 		break;
4887 
4888 		/* "zM": close all folds */
4889     case 'M':	curwin->w_p_fdl = 0;
4890 		old_fdl = -1;		/* force an update */
4891 		curwin->w_p_fen = TRUE;
4892 		break;
4893 
4894 		/* "zr": reduce folding */
4895     case 'r':	++curwin->w_p_fdl;
4896 		break;
4897 
4898 		/* "zR": open all folds */
4899     case 'R':	curwin->w_p_fdl = getDeepestNesting();
4900 		old_fdl = -1;		/* force an update */
4901 		break;
4902 
4903     case 'j':	/* "zj" move to next fold downwards */
4904     case 'k':	/* "zk" move to next fold upwards */
4905 		if (foldMoveTo(TRUE, nchar == 'j' ? FORWARD : BACKWARD,
4906 							  cap->count1) == FAIL)
4907 		    clearopbeep(cap->oap);
4908 		break;
4909 
4910 #endif /* FEAT_FOLDING */
4911 
4912 #ifdef FEAT_SPELL
4913     case 'u':	/* "zug" and "zuw": undo "zg" and "zw" */
4914 		++no_mapping;
4915 		++allow_keys;   /* no mapping for nchar, but allow key codes */
4916 		nchar = safe_vgetc();
4917 #ifdef FEAT_LANGMAP
4918 		LANGMAP_ADJUST(nchar, TRUE);
4919 #endif
4920 		--no_mapping;
4921 		--allow_keys;
4922 #ifdef FEAT_CMDL_INFO
4923 		(void)add_to_showcmd(nchar);
4924 #endif
4925 		if (vim_strchr((char_u *)"gGwW", nchar) == NULL)
4926 		{
4927 		    clearopbeep(cap->oap);
4928 		    break;
4929 		}
4930 		undo = TRUE;
4931 		/*FALLTHROUGH*/
4932 
4933     case 'g':	/* "zg": add good word to word list */
4934     case 'w':	/* "zw": add wrong word to word list */
4935     case 'G':	/* "zG": add good word to temp word list */
4936     case 'W':	/* "zW": add wrong word to temp word list */
4937 		{
4938 		    char_u  *ptr = NULL;
4939 		    int	    len;
4940 
4941 		    if (checkclearop(cap->oap))
4942 			break;
4943 # ifdef FEAT_VISUAL
4944 		    if (VIsual_active && get_visual_text(cap, &ptr, &len)
4945 								      == FAIL)
4946 			return;
4947 # endif
4948 		    if (ptr == NULL)
4949 		    {
4950 			pos_T	pos = curwin->w_cursor;
4951 
4952 			/* Find bad word under the cursor. */
4953 			len = spell_move_to(curwin, FORWARD, TRUE, TRUE, NULL);
4954 			if (len != 0 && curwin->w_cursor.col <= pos.col)
4955 			    ptr = ml_get_pos(&curwin->w_cursor);
4956 			curwin->w_cursor = pos;
4957 		    }
4958 
4959 		    if (ptr == NULL && (len = find_ident_under_cursor(&ptr,
4960 							    FIND_IDENT)) == 0)
4961 			return;
4962 		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W',
4963 					    (nchar == 'G' || nchar == 'W')
4964 						       ? 0 : (int)cap->count1,
4965 					    undo);
4966 		}
4967 		break;
4968 
4969     case '=':	/* "z=": suggestions for a badly spelled word  */
4970 		if (!checkclearop(cap->oap))
4971 		    spell_suggest((int)cap->count0);
4972 		break;
4973 #endif
4974 
4975     default:	clearopbeep(cap->oap);
4976     }
4977 
4978 #ifdef FEAT_FOLDING
4979     /* Redraw when 'foldenable' changed */
4980     if (old_fen != curwin->w_p_fen)
4981     {
4982 # ifdef FEAT_DIFF
4983 	win_T	    *wp;
4984 
4985 	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
4986 	{
4987 	    /* Adjust 'foldenable' in diff-synced windows. */
4988 	    FOR_ALL_WINDOWS(wp)
4989 	    {
4990 		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
4991 		{
4992 		    wp->w_p_fen = curwin->w_p_fen;
4993 		    changed_window_setting_win(wp);
4994 		}
4995 	    }
4996 	}
4997 # endif
4998 	changed_window_setting();
4999     }
5000 
5001     /* Redraw when 'foldlevel' changed. */
5002     if (old_fdl != curwin->w_p_fdl)
5003 	newFoldLevel();
5004 #endif
5005 }
5006 
5007 #ifdef FEAT_GUI
5008 /*
5009  * Vertical scrollbar movement.
5010  */
5011     static void
5012 nv_ver_scrollbar(cap)
5013     cmdarg_T	*cap;
5014 {
5015     if (cap->oap->op_type != OP_NOP)
5016 	clearopbeep(cap->oap);
5017 
5018     /* Even if an operator was pending, we still want to scroll */
5019     gui_do_scroll();
5020 }
5021 
5022 /*
5023  * Horizontal scrollbar movement.
5024  */
5025     static void
5026 nv_hor_scrollbar(cap)
5027     cmdarg_T	*cap;
5028 {
5029     if (cap->oap->op_type != OP_NOP)
5030 	clearopbeep(cap->oap);
5031 
5032     /* Even if an operator was pending, we still want to scroll */
5033     gui_do_horiz_scroll();
5034 }
5035 #endif
5036 
5037 #if defined(FEAT_GUI_TABLINE) || defined(PROTO)
5038 /*
5039  * Click in GUI tab.
5040  */
5041     static void
5042 nv_tabline(cap)
5043     cmdarg_T	*cap;
5044 {
5045     if (cap->oap->op_type != OP_NOP)
5046 	clearopbeep(cap->oap);
5047 
5048     /* Even if an operator was pending, we still want to jump tabs. */
5049     goto_tabpage(current_tab);
5050 }
5051 
5052 /*
5053  * Selected item in tab line menu.
5054  */
5055     static void
5056 nv_tabmenu(cap)
5057     cmdarg_T	*cap;
5058 {
5059     if (cap->oap->op_type != OP_NOP)
5060 	clearopbeep(cap->oap);
5061 
5062     /* Even if an operator was pending, we still want to jump tabs. */
5063     handle_tabmenu();
5064 }
5065 
5066 /*
5067  * Handle selecting an item of the GUI tab line menu.
5068  * Used in Normal and Insert mode.
5069  */
5070     void
5071 handle_tabmenu()
5072 {
5073     switch (current_tabmenu)
5074     {
5075 	case TABLINE_MENU_CLOSE:
5076 	    if (current_tab == 0)
5077 		do_cmdline_cmd((char_u *)"tabclose");
5078 	    else
5079 	    {
5080 		vim_snprintf((char *)IObuff, IOSIZE, "tabclose %d",
5081 								 current_tab);
5082 		do_cmdline_cmd(IObuff);
5083 	    }
5084 	    break;
5085 
5086 	case TABLINE_MENU_NEW:
5087 	    vim_snprintf((char *)IObuff, IOSIZE, "%dtabnew",
5088 				     current_tab > 0 ? current_tab - 1 : 999);
5089 	    do_cmdline_cmd(IObuff);
5090 	    break;
5091 
5092 	case TABLINE_MENU_OPEN:
5093 	    vim_snprintf((char *)IObuff, IOSIZE, "browse %dtabnew",
5094 				     current_tab > 0 ? current_tab - 1 : 999);
5095 	    do_cmdline_cmd(IObuff);
5096 	    break;
5097     }
5098 }
5099 #endif
5100 
5101 /*
5102  * "Q" command.
5103  */
5104     static void
5105 nv_exmode(cap)
5106     cmdarg_T	*cap;
5107 {
5108     /*
5109      * Ignore 'Q' in Visual mode, just give a beep.
5110      */
5111 #ifdef FEAT_VISUAL
5112     if (VIsual_active)
5113 	vim_beep();
5114     else
5115 #endif
5116 	if (!checkclearop(cap->oap))
5117 	do_exmode(FALSE);
5118 }
5119 
5120 /*
5121  * Handle a ":" command.
5122  */
5123     static void
5124 nv_colon(cap)
5125     cmdarg_T  *cap;
5126 {
5127     int	    old_p_im;
5128 
5129 #ifdef FEAT_VISUAL
5130     if (VIsual_active)
5131 	nv_operator(cap);
5132     else
5133 #endif
5134     {
5135 	if (cap->oap->op_type != OP_NOP)
5136 	{
5137 	    /* Using ":" as a movement is characterwise exclusive. */
5138 	    cap->oap->motion_type = MCHAR;
5139 	    cap->oap->inclusive = FALSE;
5140 	}
5141 	else if (cap->count0)
5142 	{
5143 	    /* translate "count:" into ":.,.+(count - 1)" */
5144 	    stuffcharReadbuff('.');
5145 	    if (cap->count0 > 1)
5146 	    {
5147 		stuffReadbuff((char_u *)",.+");
5148 		stuffnumReadbuff((long)cap->count0 - 1L);
5149 	    }
5150 	}
5151 
5152 	/* When typing, don't type below an old message */
5153 	if (KeyTyped)
5154 	    compute_cmdrow();
5155 
5156 	old_p_im = p_im;
5157 
5158 	/* get a command line and execute it */
5159 	do_cmdline(NULL, getexline, NULL,
5160 			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
5161 
5162 	/* If 'insertmode' changed, enter or exit Insert mode */
5163 	if (p_im != old_p_im)
5164 	{
5165 	    if (p_im)
5166 		restart_edit = 'i';
5167 	    else
5168 		restart_edit = 0;
5169 	}
5170 
5171 	/* The start of the operator may have become invalid by the Ex
5172 	 * command. */
5173 	if (cap->oap->op_type != OP_NOP
5174 		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
5175 		    || cap->oap->start.col >
5176 					 STRLEN(ml_get(cap->oap->start.lnum))))
5177 	    clearopbeep(cap->oap);
5178     }
5179 }
5180 
5181 /*
5182  * Handle CTRL-G command.
5183  */
5184     static void
5185 nv_ctrlg(cap)
5186     cmdarg_T *cap;
5187 {
5188 #ifdef FEAT_VISUAL
5189     if (VIsual_active)	/* toggle Selection/Visual mode */
5190     {
5191 	VIsual_select = !VIsual_select;
5192 	showmode();
5193     }
5194     else
5195 #endif
5196 	if (!checkclearop(cap->oap))
5197 	/* print full name if count given or :cd used */
5198 	fileinfo((int)cap->count0, FALSE, TRUE);
5199 }
5200 
5201 /*
5202  * Handle CTRL-H <Backspace> command.
5203  */
5204     static void
5205 nv_ctrlh(cap)
5206     cmdarg_T *cap;
5207 {
5208 #ifdef FEAT_VISUAL
5209     if (VIsual_active && VIsual_select)
5210     {
5211 	cap->cmdchar = 'x';	/* BS key behaves like 'x' in Select mode */
5212 	v_visop(cap);
5213     }
5214     else
5215 #endif
5216 	nv_left(cap);
5217 }
5218 
5219 /*
5220  * CTRL-L: clear screen and redraw.
5221  */
5222     static void
5223 nv_clear(cap)
5224     cmdarg_T	*cap;
5225 {
5226     if (!checkclearop(cap->oap))
5227     {
5228 #if defined(__BEOS__) && !USE_THREAD_FOR_INPUT_WITH_TIMEOUT
5229 	/*
5230 	 * Right now, the BeBox doesn't seem to have an easy way to detect
5231 	 * window resizing, so we cheat and make the user detect it
5232 	 * manually with CTRL-L instead
5233 	 */
5234 	ui_get_shellsize();
5235 #endif
5236 #ifdef FEAT_SYN_HL
5237 	/* Clear all syntax states to force resyncing. */
5238 	syn_stack_free_all(curbuf);
5239 #endif
5240 	redraw_later(CLEAR);
5241     }
5242 }
5243 
5244 /*
5245  * CTRL-O: In Select mode: switch to Visual mode for one command.
5246  * Otherwise: Go to older pcmark.
5247  */
5248     static void
5249 nv_ctrlo(cap)
5250     cmdarg_T	*cap;
5251 {
5252 #ifdef FEAT_VISUAL
5253     if (VIsual_active && VIsual_select)
5254     {
5255 	VIsual_select = FALSE;
5256 	showmode();
5257 	restart_VIsual_select = 2;	/* restart Select mode later */
5258     }
5259     else
5260 #endif
5261     {
5262 	cap->count1 = -cap->count1;
5263 	nv_pcmark(cap);
5264     }
5265 }
5266 
5267 /*
5268  * CTRL-^ command, short for ":e #"
5269  */
5270     static void
5271 nv_hat(cap)
5272     cmdarg_T	*cap;
5273 {
5274     if (!checkclearopq(cap->oap))
5275 	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
5276 						GETF_SETMARK|GETF_ALT, FALSE);
5277 }
5278 
5279 /*
5280  * "Z" commands.
5281  */
5282     static void
5283 nv_Zet(cap)
5284     cmdarg_T *cap;
5285 {
5286     if (!checkclearopq(cap->oap))
5287     {
5288 	switch (cap->nchar)
5289 	{
5290 			/* "ZZ": equivalent to ":x". */
5291 	    case 'Z':	do_cmdline_cmd((char_u *)"x");
5292 			break;
5293 
5294 			/* "ZQ": equivalent to ":q!" (Elvis compatible). */
5295 	    case 'Q':	do_cmdline_cmd((char_u *)"q!");
5296 			break;
5297 
5298 	    default:	clearopbeep(cap->oap);
5299 	}
5300     }
5301 }
5302 
5303 #if defined(FEAT_WINDOWS) || defined(PROTO)
5304 /*
5305  * Call nv_ident() as if "c1" was used, with "c2" as next character.
5306  */
5307     void
5308 do_nv_ident(c1, c2)
5309     int		c1;
5310     int		c2;
5311 {
5312     oparg_T	oa;
5313     cmdarg_T	ca;
5314 
5315     clear_oparg(&oa);
5316     vim_memset(&ca, 0, sizeof(ca));
5317     ca.oap = &oa;
5318     ca.cmdchar = c1;
5319     ca.nchar = c2;
5320     nv_ident(&ca);
5321 }
5322 #endif
5323 
5324 /*
5325  * Handle the commands that use the word under the cursor.
5326  * [g] CTRL-]	:ta to current identifier
5327  * [g] 'K'	run program for current identifier
5328  * [g] '*'	/ to current identifier or string
5329  * [g] '#'	? to current identifier or string
5330  *  g  ']'	:tselect for current identifier
5331  */
5332     static void
5333 nv_ident(cap)
5334     cmdarg_T	*cap;
5335 {
5336     char_u	*ptr = NULL;
5337     char_u	*buf;
5338     char_u	*p;
5339     char_u	*kp;		/* value of 'keywordprg' */
5340     int		kp_help;	/* 'keywordprg' is ":help" */
5341     int		n = 0;		/* init for GCC */
5342     int		cmdchar;
5343     int		g_cmd;		/* "g" command */
5344     char_u	*aux_ptr;
5345     int		isman;
5346     int		isman_s;
5347 
5348     if (cap->cmdchar == 'g')	/* "g*", "g#", "g]" and "gCTRL-]" */
5349     {
5350 	cmdchar = cap->nchar;
5351 	g_cmd = TRUE;
5352     }
5353     else
5354     {
5355 	cmdchar = cap->cmdchar;
5356 	g_cmd = FALSE;
5357     }
5358 
5359     if (cmdchar == POUND)	/* the pound sign, '#' for English keyboards */
5360 	cmdchar = '#';
5361 
5362     /*
5363      * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
5364      */
5365     if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
5366     {
5367 #ifdef FEAT_VISUAL
5368 	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
5369 	    return;
5370 #endif
5371 	if (checkclearopq(cap->oap))
5372 	    return;
5373     }
5374 
5375     if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
5376 		    (cmdchar == '*' || cmdchar == '#')
5377 				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
5378     {
5379 	clearop(cap->oap);
5380 	return;
5381     }
5382 
5383     /* Allocate buffer to put the command in.  Inserting backslashes can
5384      * double the length of the word.  p_kp / curbuf->b_p_kp could be added
5385      * and some numbers. */
5386     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
5387     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
5388 						 || STRCMP(kp, ":help") == 0);
5389     buf = alloc((unsigned)(n * 2 + 30 + STRLEN(kp)));
5390     if (buf == NULL)
5391 	return;
5392     buf[0] = NUL;
5393 
5394     switch (cmdchar)
5395     {
5396 	case '*':
5397 	case '#':
5398 	    /*
5399 	     * Put cursor at start of word, makes search skip the word
5400 	     * under the cursor.
5401 	     * Call setpcmark() first, so "*``" puts the cursor back where
5402 	     * it was.
5403 	     */
5404 	    setpcmark();
5405 	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());
5406 
5407 	    if (!g_cmd && vim_iswordp(ptr))
5408 		STRCPY(buf, "\\<");
5409 	    no_smartcase = TRUE;	/* don't use 'smartcase' now */
5410 	    break;
5411 
5412 	case 'K':
5413 	    if (kp_help)
5414 		STRCPY(buf, "he! ");
5415 	    else
5416 	    {
5417 		/* When a count is given, turn it into a range.  Is this
5418 		 * really what we want? */
5419 		isman = (STRCMP(kp, "man") == 0);
5420 		isman_s = (STRCMP(kp, "man -s") == 0);
5421 		if (cap->count0 != 0 && !(isman || isman_s))
5422 		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);
5423 
5424 		STRCAT(buf, "! ");
5425 		if (cap->count0 == 0 && isman_s)
5426 		    STRCAT(buf, "man");
5427 		else
5428 		    STRCAT(buf, kp);
5429 		STRCAT(buf, " ");
5430 		if (cap->count0 != 0 && (isman || isman_s))
5431 		{
5432 		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
5433 		    STRCAT(buf, " ");
5434 		}
5435 	    }
5436 	    break;
5437 
5438 	case ']':
5439 #ifdef FEAT_CSCOPE
5440 	    if (p_cst)
5441 		STRCPY(buf, "cstag ");
5442 	    else
5443 #endif
5444 		STRCPY(buf, "ts ");
5445 	    break;
5446 
5447 	default:
5448 	    if (curbuf->b_help)
5449 		STRCPY(buf, "he! ");
5450 	    else if (g_cmd)
5451 		STRCPY(buf, "tj ");
5452 	    else
5453 		sprintf((char *)buf, "%ldta ", cap->count0);
5454     }
5455 
5456     /*
5457      * Now grab the chars in the identifier
5458      */
5459     if (cmdchar == '*')
5460 	aux_ptr = (char_u *)(p_magic ? "/.*~[^$\\" : "/^$\\");
5461     else if (cmdchar == '#')
5462 	aux_ptr = (char_u *)(p_magic ? "/?.*~[^$\\" : "/?^$\\");
5463     else if (cmdchar == 'K' && !kp_help)
5464 	aux_ptr = (char_u *)" \t\\\"|!";
5465     else
5466 	/* Don't escape spaces and Tabs in a tag with a backslash */
5467 	aux_ptr = (char_u *)"\\|\"";
5468 
5469     p = buf + STRLEN(buf);
5470     while (n-- > 0)
5471     {
5472 	/* put a backslash before \ and some others */
5473 	if (vim_strchr(aux_ptr, *ptr) != NULL)
5474 	    *p++ = '\\';
5475 #ifdef FEAT_MBYTE
5476 	/* When current byte is a part of multibyte character, copy all bytes
5477 	 * of that character. */
5478 	if (has_mbyte)
5479 	{
5480 	    int i;
5481 	    int len = (*mb_ptr2len)(ptr) - 1;
5482 
5483 	    for (i = 0; i < len && n >= 1; ++i, --n)
5484 		*p++ = *ptr++;
5485 	}
5486 #endif
5487 	*p++ = *ptr++;
5488     }
5489     *p = NUL;
5490 
5491     /*
5492      * Execute the command.
5493      */
5494     if (cmdchar == '*' || cmdchar == '#')
5495     {
5496 	if (!g_cmd && (
5497 #ifdef FEAT_MBYTE
5498 		has_mbyte ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr)) :
5499 #endif
5500 		vim_iswordc(ptr[-1])))
5501 	    STRCAT(buf, "\\>");
5502 #ifdef FEAT_CMDHIST
5503 	/* put pattern in search history */
5504 	add_to_history(HIST_SEARCH, buf, TRUE, NUL);
5505 #endif
5506 	normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0);
5507     }
5508     else
5509 	do_cmdline_cmd(buf);
5510 
5511     vim_free(buf);
5512 }
5513 
5514 #if defined(FEAT_VISUAL) || defined(PROTO)
5515 /*
5516  * Get visually selected text, within one line only.
5517  * Returns FAIL if more than one line selected.
5518  */
5519     int
5520 get_visual_text(cap, pp, lenp)
5521     cmdarg_T	*cap;
5522     char_u	**pp;	    /* return: start of selected text */
5523     int		*lenp;	    /* return: length of selected text */
5524 {
5525     if (VIsual_mode != 'V')
5526 	unadjust_for_sel();
5527     if (VIsual.lnum != curwin->w_cursor.lnum)
5528     {
5529 	if (cap != NULL)
5530 	    clearopbeep(cap->oap);
5531 	return FAIL;
5532     }
5533     if (VIsual_mode == 'V')
5534     {
5535 	*pp = ml_get_curline();
5536 	*lenp = (int)STRLEN(*pp);
5537     }
5538     else
5539     {
5540 	if (lt(curwin->w_cursor, VIsual))
5541 	{
5542 	    *pp = ml_get_pos(&curwin->w_cursor);
5543 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
5544 	}
5545 	else
5546 	{
5547 	    *pp = ml_get_pos(&VIsual);
5548 	    *lenp = curwin->w_cursor.col - VIsual.col + 1;
5549 	}
5550 #ifdef FEAT_MBYTE
5551 	if (has_mbyte)
5552 	    /* Correct the length to include the whole last character. */
5553 	    *lenp += (*mb_ptr2len)(*pp + (*lenp - 1)) - 1;
5554 #endif
5555     }
5556     reset_VIsual_and_resel();
5557     return OK;
5558 }
5559 #endif
5560 
5561 /*
5562  * CTRL-T: backwards in tag stack
5563  */
5564     static void
5565 nv_tagpop(cap)
5566     cmdarg_T	*cap;
5567 {
5568     if (!checkclearopq(cap->oap))
5569 	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
5570 }
5571 
5572 /*
5573  * Handle scrolling command 'H', 'L' and 'M'.
5574  */
5575     static void
5576 nv_scroll(cap)
5577     cmdarg_T  *cap;
5578 {
5579     int		used = 0;
5580     long	n;
5581 #ifdef FEAT_FOLDING
5582     linenr_T	lnum;
5583 #endif
5584     int		half;
5585 
5586     cap->oap->motion_type = MLINE;
5587     setpcmark();
5588 
5589     if (cap->cmdchar == 'L')
5590     {
5591 	validate_botline();	    /* make sure curwin->w_botline is valid */
5592 	curwin->w_cursor.lnum = curwin->w_botline - 1;
5593 	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
5594 	    curwin->w_cursor.lnum = 1;
5595 	else
5596 	{
5597 #ifdef FEAT_FOLDING
5598 	    if (hasAnyFolding(curwin))
5599 	    {
5600 		/* Count a fold for one screen line. */
5601 		for (n = cap->count1 - 1; n > 0
5602 			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
5603 		{
5604 		    (void)hasFolding(curwin->w_cursor.lnum,
5605 						&curwin->w_cursor.lnum, NULL);
5606 		    --curwin->w_cursor.lnum;
5607 		}
5608 	    }
5609 	    else
5610 #endif
5611 		curwin->w_cursor.lnum -= cap->count1 - 1;
5612 	}
5613     }
5614     else
5615     {
5616 	if (cap->cmdchar == 'M')
5617 	{
5618 #ifdef FEAT_DIFF
5619 	    /* Don't count filler lines above the window. */
5620 	    used -= diff_check_fill(curwin, curwin->w_topline)
5621 							  - curwin->w_topfill;
5622 #endif
5623 	    validate_botline();	    /* make sure w_empty_rows is valid */
5624 	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
5625 	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
5626 	    {
5627 #ifdef FEAT_DIFF
5628 		/* Count half he number of filler lines to be "below this
5629 		 * line" and half to be "above the next line". */
5630 		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
5631 							     + n) / 2 >= half)
5632 		{
5633 		    --n;
5634 		    break;
5635 		}
5636 #endif
5637 		used += plines(curwin->w_topline + n);
5638 		if (used >= half)
5639 		    break;
5640 #ifdef FEAT_FOLDING
5641 		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
5642 		    n = lnum - curwin->w_topline;
5643 #endif
5644 	    }
5645 	    if (n > 0 && used > curwin->w_height)
5646 		--n;
5647 	}
5648 	else /* (cap->cmdchar == 'H') */
5649 	{
5650 	    n = cap->count1 - 1;
5651 #ifdef FEAT_FOLDING
5652 	    if (hasAnyFolding(curwin))
5653 	    {
5654 		/* Count a fold for one screen line. */
5655 		lnum = curwin->w_topline;
5656 		while (n-- > 0 && lnum < curwin->w_botline - 1)
5657 		{
5658 		    hasFolding(lnum, NULL, &lnum);
5659 		    ++lnum;
5660 		}
5661 		n = lnum - curwin->w_topline;
5662 	    }
5663 #endif
5664 	}
5665 	curwin->w_cursor.lnum = curwin->w_topline + n;
5666 	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
5667 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
5668     }
5669 
5670     cursor_correct();	/* correct for 'so' */
5671     beginline(BL_SOL | BL_FIX);
5672 }
5673 
5674 /*
5675  * Cursor right commands.
5676  */
5677     static void
5678 nv_right(cap)
5679     cmdarg_T	*cap;
5680 {
5681     long	n;
5682 #ifdef FEAT_VISUAL
5683     int		PAST_LINE;
5684 #else
5685 # define PAST_LINE 0
5686 #endif
5687 
5688     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5689     {
5690 	/* <C-Right> and <S-Right> move a word or WORD right */
5691 	if (mod_mask & MOD_MASK_CTRL)
5692 	    cap->arg = TRUE;
5693 	nv_wordcmd(cap);
5694 	return;
5695     }
5696 
5697     cap->oap->motion_type = MCHAR;
5698     cap->oap->inclusive = FALSE;
5699 #ifdef FEAT_VISUAL
5700     PAST_LINE = (VIsual_active && *p_sel != 'o');
5701 
5702 # ifdef FEAT_VIRTUALEDIT
5703     /*
5704      * In virtual mode, there's no such thing as "PAST_LINE", as lines are
5705      * (theoretically) infinitly long.
5706      */
5707     if (virtual_active())
5708 	PAST_LINE = 0;
5709 # endif
5710 #endif
5711 
5712     for (n = cap->count1; n > 0; --n)
5713     {
5714 	if ((!PAST_LINE && oneright() == FAIL)
5715 		|| (PAST_LINE && *ml_get_cursor() == NUL))
5716 	{
5717 	    /*
5718 	     *	  <Space> wraps to next line if 'whichwrap' has 's'.
5719 	     *	      'l' wraps to next line if 'whichwrap' has 'l'.
5720 	     * CURS_RIGHT wraps to next line if 'whichwrap' has '>'.
5721 	     */
5722 	    if (       ((cap->cmdchar == ' '
5723 			    && vim_strchr(p_ww, 's') != NULL)
5724 			|| (cap->cmdchar == 'l'
5725 			    && vim_strchr(p_ww, 'l') != NULL)
5726 			|| (cap->cmdchar == K_RIGHT
5727 			    && vim_strchr(p_ww, '>') != NULL))
5728 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
5729 	    {
5730 		/* When deleting we also count the NL as a character.
5731 		 * Set cap->oap->inclusive when last char in the line is
5732 		 * included, move to next line after that */
5733 		if (	   cap->oap->op_type != OP_NOP
5734 			&& !cap->oap->inclusive
5735 			&& !lineempty(curwin->w_cursor.lnum))
5736 		    cap->oap->inclusive = TRUE;
5737 		else
5738 		{
5739 		    ++curwin->w_cursor.lnum;
5740 		    curwin->w_cursor.col = 0;
5741 #ifdef FEAT_VIRTUALEDIT
5742 		    curwin->w_cursor.coladd = 0;
5743 #endif
5744 		    curwin->w_set_curswant = TRUE;
5745 		    cap->oap->inclusive = FALSE;
5746 		}
5747 		continue;
5748 	    }
5749 	    if (cap->oap->op_type == OP_NOP)
5750 	    {
5751 		/* Only beep and flush if not moved at all */
5752 		if (n == cap->count1)
5753 		    beep_flush();
5754 	    }
5755 	    else
5756 	    {
5757 		if (!lineempty(curwin->w_cursor.lnum))
5758 		    cap->oap->inclusive = TRUE;
5759 	    }
5760 	    break;
5761 	}
5762 #ifdef FEAT_VISUAL
5763 	else if (PAST_LINE)
5764 	{
5765 	    curwin->w_set_curswant = TRUE;
5766 # ifdef FEAT_VIRTUALEDIT
5767 	    if (virtual_active())
5768 		oneright();
5769 	    else
5770 # endif
5771 	    {
5772 # ifdef FEAT_MBYTE
5773 		if (has_mbyte)
5774 		    curwin->w_cursor.col +=
5775 					 (*mb_ptr2len)(ml_get_cursor());
5776 		else
5777 # endif
5778 		    ++curwin->w_cursor.col;
5779 	    }
5780 	}
5781 #endif
5782     }
5783 #ifdef FEAT_FOLDING
5784     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5785 					       && cap->oap->op_type == OP_NOP)
5786 	foldOpenCursor();
5787 #endif
5788 }
5789 
5790 /*
5791  * Cursor left commands.
5792  *
5793  * Returns TRUE when operator end should not be adjusted.
5794  */
5795     static void
5796 nv_left(cap)
5797     cmdarg_T	*cap;
5798 {
5799     long	n;
5800 
5801     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5802     {
5803 	/* <C-Left> and <S-Left> move a word or WORD left */
5804 	if (mod_mask & MOD_MASK_CTRL)
5805 	    cap->arg = 1;
5806 	nv_bck_word(cap);
5807 	return;
5808     }
5809 
5810     cap->oap->motion_type = MCHAR;
5811     cap->oap->inclusive = FALSE;
5812     for (n = cap->count1; n > 0; --n)
5813     {
5814 	if (oneleft() == FAIL)
5815 	{
5816 	    /* <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
5817 	     *		 'h' wraps to previous line if 'whichwrap' has 'h'.
5818 	     *	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
5819 	     */
5820 	    if (       (((cap->cmdchar == K_BS
5821 				|| cap->cmdchar == Ctrl_H)
5822 			    && vim_strchr(p_ww, 'b') != NULL)
5823 			|| (cap->cmdchar == 'h'
5824 			    && vim_strchr(p_ww, 'h') != NULL)
5825 			|| (cap->cmdchar == K_LEFT
5826 			    && vim_strchr(p_ww, '<') != NULL))
5827 		    && curwin->w_cursor.lnum > 1)
5828 	    {
5829 		--(curwin->w_cursor.lnum);
5830 		coladvance((colnr_T)MAXCOL);
5831 		curwin->w_set_curswant = TRUE;
5832 
5833 		/* When the NL before the first char has to be deleted we
5834 		 * put the cursor on the NUL after the previous line.
5835 		 * This is a very special case, be careful!
5836 		 * don't adjust op_end now, otherwise it won't work */
5837 		if (	   (cap->oap->op_type == OP_DELETE
5838 			    || cap->oap->op_type == OP_CHANGE)
5839 			&& !lineempty(curwin->w_cursor.lnum))
5840 		{
5841 		    ++curwin->w_cursor.col;
5842 		    cap->retval |= CA_NO_ADJ_OP_END;
5843 		}
5844 		continue;
5845 	    }
5846 	    /* Only beep and flush if not moved at all */
5847 	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
5848 		beep_flush();
5849 	    break;
5850 	}
5851     }
5852 #ifdef FEAT_FOLDING
5853     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5854 					       && cap->oap->op_type == OP_NOP)
5855 	foldOpenCursor();
5856 #endif
5857 }
5858 
5859 /*
5860  * Cursor up commands.
5861  * cap->arg is TRUE for "-": Move cursor to first non-blank.
5862  */
5863     static void
5864 nv_up(cap)
5865     cmdarg_T	*cap;
5866 {
5867     if (mod_mask & MOD_MASK_SHIFT)
5868     {
5869 	/* <S-Up> is page up */
5870 	cap->arg = BACKWARD;
5871 	nv_page(cap);
5872     }
5873     else
5874     {
5875 	cap->oap->motion_type = MLINE;
5876 	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5877 	    clearopbeep(cap->oap);
5878 	else if (cap->arg)
5879 	    beginline(BL_WHITE | BL_FIX);
5880     }
5881 }
5882 
5883 /*
5884  * Cursor down commands.
5885  * cap->arg is TRUE for CR and "+": Move cursor to first non-blank.
5886  */
5887     static void
5888 nv_down(cap)
5889     cmdarg_T	*cap;
5890 {
5891     if (mod_mask & MOD_MASK_SHIFT)
5892     {
5893 	/* <S-Down> is page down */
5894 	cap->arg = FORWARD;
5895 	nv_page(cap);
5896     }
5897     else
5898 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5899     /* In a quickfix window a <CR> jumps to the error under the cursor. */
5900     if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
5901 	if (curwin->w_llist_ref == NULL)
5902 	    do_cmdline_cmd((char_u *)".cc");	/* quickfix window */
5903 	else
5904 	    do_cmdline_cmd((char_u *)".ll");	/* location list window */
5905     else
5906 #endif
5907     {
5908 #ifdef FEAT_CMDWIN
5909 	/* In the cmdline window a <CR> executes the command. */
5910 	if (cmdwin_type != 0 && cap->cmdchar == CAR)
5911 	    cmdwin_result = CAR;
5912 	else
5913 #endif
5914 	{
5915 	    cap->oap->motion_type = MLINE;
5916 	    if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5917 		clearopbeep(cap->oap);
5918 	    else if (cap->arg)
5919 		beginline(BL_WHITE | BL_FIX);
5920 	}
5921     }
5922 }
5923 
5924 #ifdef FEAT_SEARCHPATH
5925 /*
5926  * Grab the file name under the cursor and edit it.
5927  */
5928     static void
5929 nv_gotofile(cap)
5930     cmdarg_T	*cap;
5931 {
5932     char_u	*ptr;
5933     linenr_T	lnum = -1;
5934 
5935     if (text_locked())
5936     {
5937 	clearopbeep(cap->oap);
5938 	text_locked_msg();
5939 	return;
5940     }
5941 #ifdef FEAT_AUTOCMD
5942     if (curbuf_locked())
5943     {
5944 	clearop(cap->oap);
5945 	return;
5946     }
5947 #endif
5948 
5949     ptr = grab_file_name(cap->count1, &lnum);
5950 
5951     if (ptr != NULL)
5952     {
5953 	/* do autowrite if necessary */
5954 	if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !P_HID(curbuf))
5955 	    autowrite(curbuf, FALSE);
5956 	setpcmark();
5957 	(void)do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
5958 					       P_HID(curbuf) ? ECMD_HIDE : 0);
5959 	if (cap->nchar == 'F' && lnum >= 0)
5960 	{
5961 	    curwin->w_cursor.lnum = lnum;
5962 	    check_cursor_lnum();
5963 	    beginline(BL_SOL | BL_FIX);
5964 	}
5965 	vim_free(ptr);
5966     }
5967     else
5968 	clearop(cap->oap);
5969 }
5970 #endif
5971 
5972 /*
5973  * <End> command: to end of current line or last line.
5974  */
5975     static void
5976 nv_end(cap)
5977     cmdarg_T	*cap;
5978 {
5979     if (cap->arg || (mod_mask & MOD_MASK_CTRL))	/* CTRL-END = goto last line */
5980     {
5981 	cap->arg = TRUE;
5982 	nv_goto(cap);
5983 	cap->count1 = 1;		/* to end of current line */
5984     }
5985     nv_dollar(cap);
5986 }
5987 
5988 /*
5989  * Handle the "$" command.
5990  */
5991     static void
5992 nv_dollar(cap)
5993     cmdarg_T	*cap;
5994 {
5995     cap->oap->motion_type = MCHAR;
5996     cap->oap->inclusive = TRUE;
5997 #ifdef FEAT_VIRTUALEDIT
5998     /* In virtual mode when off the edge of a line and an operator
5999      * is pending (whew!) keep the cursor where it is.
6000      * Otherwise, send it to the end of the line. */
6001     if (!virtual_active() || gchar_cursor() != NUL
6002 					       || cap->oap->op_type == OP_NOP)
6003 #endif
6004 	curwin->w_curswant = MAXCOL;	/* so we stay at the end */
6005     if (cursor_down((long)(cap->count1 - 1),
6006 					 cap->oap->op_type == OP_NOP) == FAIL)
6007 	clearopbeep(cap->oap);
6008 #ifdef FEAT_FOLDING
6009     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6010 	foldOpenCursor();
6011 #endif
6012 }
6013 
6014 /*
6015  * Implementation of '?' and '/' commands.
6016  * If cap->arg is TRUE don't set PC mark.
6017  */
6018     static void
6019 nv_search(cap)
6020     cmdarg_T	    *cap;
6021 {
6022     oparg_T	*oap = cap->oap;
6023 
6024     if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
6025     {
6026 	/* Translate "g??" to "g?g?" */
6027 	cap->cmdchar = 'g';
6028 	cap->nchar = '?';
6029 	nv_operator(cap);
6030 	return;
6031     }
6032 
6033     cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0);
6034 
6035     if (cap->searchbuf == NULL)
6036     {
6037 	clearop(oap);
6038 	return;
6039     }
6040 
6041     normal_search(cap, cap->cmdchar, cap->searchbuf,
6042 						(cap->arg ? 0 : SEARCH_MARK));
6043 }
6044 
6045 /*
6046  * Handle "N" and "n" commands.
6047  * cap->arg is SEARCH_REV for "N", 0 for "n".
6048  */
6049     static void
6050 nv_next(cap)
6051     cmdarg_T	*cap;
6052 {
6053     normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
6054 }
6055 
6056 /*
6057  * Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
6058  * Uses only cap->count1 and cap->oap from "cap".
6059  */
6060     static void
6061 normal_search(cap, dir, pat, opt)
6062     cmdarg_T	*cap;
6063     int		dir;
6064     char_u	*pat;
6065     int		opt;		/* extra flags for do_search() */
6066 {
6067     int		i;
6068 
6069     cap->oap->motion_type = MCHAR;
6070     cap->oap->inclusive = FALSE;
6071     cap->oap->use_reg_one = TRUE;
6072     curwin->w_set_curswant = TRUE;
6073 
6074     i = do_search(cap->oap, dir, pat, cap->count1,
6075 				 opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG);
6076     if (i == 0)
6077 	clearop(cap->oap);
6078     else
6079     {
6080 	if (i == 2)
6081 	    cap->oap->motion_type = MLINE;
6082 #ifdef FEAT_VIRTUALEDIT
6083 	curwin->w_cursor.coladd = 0;
6084 #endif
6085 #ifdef FEAT_FOLDING
6086 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6087 	    foldOpenCursor();
6088 #endif
6089     }
6090 
6091     /* "/$" will put the cursor after the end of the line, may need to
6092      * correct that here */
6093     check_cursor();
6094 }
6095 
6096 /*
6097  * Character search commands.
6098  * cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', TRUE for
6099  * ',' and FALSE for ';'.
6100  * cap->nchar is NUL for ',' and ';' (repeat the search)
6101  */
6102     static void
6103 nv_csearch(cap)
6104     cmdarg_T	*cap;
6105 {
6106     int		t_cmd;
6107 
6108     if (cap->cmdchar == 't' || cap->cmdchar == 'T')
6109 	t_cmd = TRUE;
6110     else
6111 	t_cmd = FALSE;
6112 
6113     cap->oap->motion_type = MCHAR;
6114     if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
6115 	clearopbeep(cap->oap);
6116     else
6117     {
6118 	curwin->w_set_curswant = TRUE;
6119 #ifdef FEAT_VIRTUALEDIT
6120 	/* Include a Tab for "tx" and for "dfx". */
6121 	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
6122 		&& (t_cmd || cap->oap->op_type != OP_NOP))
6123 	{
6124 	    colnr_T	scol, ecol;
6125 
6126 	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
6127 	    curwin->w_cursor.coladd = ecol - scol;
6128 	}
6129 	else
6130 	    curwin->w_cursor.coladd = 0;
6131 #endif
6132 #ifdef FEAT_VISUAL
6133 	adjust_for_sel(cap);
6134 #endif
6135 #ifdef FEAT_FOLDING
6136 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6137 	    foldOpenCursor();
6138 #endif
6139     }
6140 }
6141 
6142 /*
6143  * "[" and "]" commands.
6144  * cap->arg is BACKWARD for "[" and FORWARD for "]".
6145  */
6146     static void
6147 nv_brackets(cap)
6148     cmdarg_T	*cap;
6149 {
6150     pos_T	new_pos;
6151     pos_T	prev_pos;
6152     pos_T	*pos = NULL;	    /* init for GCC */
6153     pos_T	old_pos;	    /* cursor position before command */
6154     int		flag;
6155     long	n;
6156     int		findc;
6157     int		c;
6158 
6159     cap->oap->motion_type = MCHAR;
6160     cap->oap->inclusive = FALSE;
6161     old_pos = curwin->w_cursor;
6162 #ifdef FEAT_VIRTUALEDIT
6163     curwin->w_cursor.coladd = 0;	    /* TODO: don't do this for an error. */
6164 #endif
6165 
6166 #ifdef FEAT_SEARCHPATH
6167     /*
6168      * "[f" or "]f" : Edit file under the cursor (same as "gf")
6169      */
6170     if (cap->nchar == 'f')
6171 	nv_gotofile(cap);
6172     else
6173 #endif
6174 
6175 #ifdef FEAT_FIND_ID
6176     /*
6177      * Find the occurence(s) of the identifier or define under cursor
6178      * in current and included files or jump to the first occurence.
6179      *
6180      *			search	     list	    jump
6181      *		      fwd   bwd    fwd	 bwd	 fwd	bwd
6182      * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
6183      * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
6184      */
6185     if (vim_strchr((char_u *)
6186 #ifdef EBCDIC
6187 		"iI\005dD\067",
6188 #else
6189 		"iI\011dD\004",
6190 #endif
6191 		cap->nchar) != NULL)
6192     {
6193 	char_u	*ptr;
6194 	int	len;
6195 
6196 	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
6197 	    clearop(cap->oap);
6198 	else
6199 	{
6200 	    find_pattern_in_path(ptr, 0, len, TRUE,
6201 		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
6202 		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
6203 		cap->count1,
6204 		isupper(cap->nchar) ? ACTION_SHOW_ALL :
6205 			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
6206 		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
6207 		(linenr_T)MAXLNUM);
6208 	    curwin->w_set_curswant = TRUE;
6209 	}
6210     }
6211     else
6212 #endif
6213 
6214     /*
6215      * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
6216      * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
6217      * "[/", "[*", "]/", "]*": go to Nth comment start/end.
6218      * "[m" or "]m" search for prev/next start of (Java) method.
6219      * "[M" or "]M" search for prev/next end of (Java) method.
6220      */
6221     if (  (cap->cmdchar == '['
6222 		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
6223 	    || (cap->cmdchar == ']'
6224 		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
6225     {
6226 	if (cap->nchar == '*')
6227 	    cap->nchar = '/';
6228 	new_pos.lnum = 0;
6229 	prev_pos.lnum = 0;
6230 	if (cap->nchar == 'm' || cap->nchar == 'M')
6231 	{
6232 	    if (cap->cmdchar == '[')
6233 		findc = '{';
6234 	    else
6235 		findc = '}';
6236 	    n = 9999;
6237 	}
6238 	else
6239 	{
6240 	    findc = cap->nchar;
6241 	    n = cap->count1;
6242 	}
6243 	for ( ; n > 0; --n)
6244 	{
6245 	    if ((pos = findmatchlimit(cap->oap, findc,
6246 		(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
6247 	    {
6248 		if (new_pos.lnum == 0)	/* nothing found */
6249 		{
6250 		    if (cap->nchar != 'm' && cap->nchar != 'M')
6251 			clearopbeep(cap->oap);
6252 		}
6253 		else
6254 		    pos = &new_pos;	/* use last one found */
6255 		break;
6256 	    }
6257 	    prev_pos = new_pos;
6258 	    curwin->w_cursor = *pos;
6259 	    new_pos = *pos;
6260 	}
6261 	curwin->w_cursor = old_pos;
6262 
6263 	/*
6264 	 * Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
6265 	 * brought us to the match for "[m" and "]M" when inside a method.
6266 	 * Try finding the '{' or '}' we want to be at.
6267 	 * Also repeat for the given count.
6268 	 */
6269 	if (cap->nchar == 'm' || cap->nchar == 'M')
6270 	{
6271 	    /* norm is TRUE for "]M" and "[m" */
6272 	    int	    norm = ((findc == '{') == (cap->nchar == 'm'));
6273 
6274 	    n = cap->count1;
6275 	    /* found a match: we were inside a method */
6276 	    if (prev_pos.lnum != 0)
6277 	    {
6278 		pos = &prev_pos;
6279 		curwin->w_cursor = prev_pos;
6280 		if (norm)
6281 		    --n;
6282 	    }
6283 	    else
6284 		pos = NULL;
6285 	    while (n > 0)
6286 	    {
6287 		for (;;)
6288 		{
6289 		    if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
6290 		    {
6291 			/* if not found anything, that's an error */
6292 			if (pos == NULL)
6293 			    clearopbeep(cap->oap);
6294 			n = 0;
6295 			break;
6296 		    }
6297 		    c = gchar_cursor();
6298 		    if (c == '{' || c == '}')
6299 		    {
6300 			/* Must have found end/start of class: use it.
6301 			 * Or found the place to be at. */
6302 			if ((c == findc && norm) || (n == 1 && !norm))
6303 			{
6304 			    new_pos = curwin->w_cursor;
6305 			    pos = &new_pos;
6306 			    n = 0;
6307 			}
6308 			/* if no match found at all, we started outside of the
6309 			 * class and we're inside now.  Just go on. */
6310 			else if (new_pos.lnum == 0)
6311 			{
6312 			    new_pos = curwin->w_cursor;
6313 			    pos = &new_pos;
6314 			}
6315 			/* found start/end of other method: go to match */
6316 			else if ((pos = findmatchlimit(cap->oap, findc,
6317 			    (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
6318 								  0)) == NULL)
6319 			    n = 0;
6320 			else
6321 			    curwin->w_cursor = *pos;
6322 			break;
6323 		    }
6324 		}
6325 		--n;
6326 	    }
6327 	    curwin->w_cursor = old_pos;
6328 	    if (pos == NULL && new_pos.lnum != 0)
6329 		clearopbeep(cap->oap);
6330 	}
6331 	if (pos != NULL)
6332 	{
6333 	    setpcmark();
6334 	    curwin->w_cursor = *pos;
6335 	    curwin->w_set_curswant = TRUE;
6336 #ifdef FEAT_FOLDING
6337 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped
6338 					       && cap->oap->op_type == OP_NOP)
6339 		foldOpenCursor();
6340 #endif
6341 	}
6342     }
6343 
6344     /*
6345      * "[[", "[]", "]]" and "][": move to start or end of function
6346      */
6347     else if (cap->nchar == '[' || cap->nchar == ']')
6348     {
6349 	if (cap->nchar == cap->cmdchar)		    /* "]]" or "[[" */
6350 	    flag = '{';
6351 	else
6352 	    flag = '}';		    /* "][" or "[]" */
6353 
6354 	curwin->w_set_curswant = TRUE;
6355 	/*
6356 	 * Imitate strange Vi behaviour: When using "]]" with an operator
6357 	 * we also stop at '}'.
6358 	 */
6359 	if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
6360 	      (cap->oap->op_type != OP_NOP
6361 				      && cap->arg == FORWARD && flag == '{')))
6362 	    clearopbeep(cap->oap);
6363 	else
6364 	{
6365 	    if (cap->oap->op_type == OP_NOP)
6366 		beginline(BL_WHITE | BL_FIX);
6367 #ifdef FEAT_FOLDING
6368 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6369 		foldOpenCursor();
6370 #endif
6371 	}
6372     }
6373 
6374     /*
6375      * "[p", "[P", "]P" and "]p": put with indent adjustment
6376      */
6377     else if (cap->nchar == 'p' || cap->nchar == 'P')
6378     {
6379 	if (!checkclearopq(cap->oap))
6380 	{
6381 	    prep_redo_cmd(cap);
6382 	    do_put(cap->oap->regname,
6383 	      (cap->cmdchar == ']' && cap->nchar == 'p') ? FORWARD : BACKWARD,
6384 						  cap->count1, PUT_FIXINDENT);
6385 	}
6386     }
6387 
6388     /*
6389      * "['", "[`", "]'" and "]`": jump to next mark
6390      */
6391     else if (cap->nchar == '\'' || cap->nchar == '`')
6392     {
6393 	pos = &curwin->w_cursor;
6394 	for (n = cap->count1; n > 0; --n)
6395 	{
6396 	    prev_pos = *pos;
6397 	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
6398 							  cap->nchar == '\'');
6399 	    if (pos == NULL)
6400 		break;
6401 	}
6402 	if (pos == NULL)
6403 	    pos = &prev_pos;
6404 	nv_cursormark(cap, cap->nchar == '\'', pos);
6405     }
6406 
6407 #ifdef FEAT_MOUSE
6408     /*
6409      * [ or ] followed by a middle mouse click: put selected text with
6410      * indent adjustment.  Any other button just does as usual.
6411      */
6412     else if (cap->nchar >= K_LEFTMOUSE && cap->nchar <= K_RIGHTRELEASE)
6413     {
6414 	(void)do_mouse(cap->oap, cap->nchar,
6415 		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
6416 		       cap->count1, PUT_FIXINDENT);
6417     }
6418 #endif /* FEAT_MOUSE */
6419 
6420 #ifdef FEAT_FOLDING
6421     /*
6422      * "[z" and "]z": move to start or end of open fold.
6423      */
6424     else if (cap->nchar == 'z')
6425     {
6426 	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6427 							 cap->count1) == FAIL)
6428 	    clearopbeep(cap->oap);
6429     }
6430 #endif
6431 
6432 #ifdef FEAT_DIFF
6433     /*
6434      * "[c" and "]c": move to next or previous diff-change.
6435      */
6436     else if (cap->nchar == 'c')
6437     {
6438 	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
6439 							 cap->count1) == FAIL)
6440 	    clearopbeep(cap->oap);
6441     }
6442 #endif
6443 
6444 #ifdef FEAT_SPELL
6445     /*
6446      * "[s", "[S", "]s" and "]S": move to next spell error.
6447      */
6448     else if (cap->nchar == 's' || cap->nchar == 'S')
6449     {
6450 	setpcmark();
6451 	for (n = 0; n < cap->count1; ++n)
6452 	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6453 			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
6454 	    {
6455 		clearopbeep(cap->oap);
6456 		break;
6457 	    }
6458 # ifdef FEAT_FOLDING
6459 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6460 	    foldOpenCursor();
6461 # endif
6462     }
6463 #endif
6464 
6465     /* Not a valid cap->nchar. */
6466     else
6467 	clearopbeep(cap->oap);
6468 }
6469 
6470 /*
6471  * Handle Normal mode "%" command.
6472  */
6473     static void
6474 nv_percent(cap)
6475     cmdarg_T	*cap;
6476 {
6477     pos_T	*pos;
6478 #ifdef FEAT_FOLDING
6479     linenr_T	lnum = curwin->w_cursor.lnum;
6480 #endif
6481 
6482     cap->oap->inclusive = TRUE;
6483     if (cap->count0)	    /* {cnt}% : goto {cnt} percentage in file */
6484     {
6485 	if (cap->count0 > 100)
6486 	    clearopbeep(cap->oap);
6487 	else
6488 	{
6489 	    cap->oap->motion_type = MLINE;
6490 	    setpcmark();
6491 	    /* Round up, so CTRL-G will give same value.  Watch out for a
6492 	     * large line count, the line number must not go negative! */
6493 	    if (curbuf->b_ml.ml_line_count > 1000000)
6494 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99L)
6495 							 / 100L * cap->count0;
6496 	    else
6497 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
6498 						    cap->count0 + 99L) / 100L;
6499 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
6500 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6501 	    beginline(BL_SOL | BL_FIX);
6502 	}
6503     }
6504     else		    /* "%" : go to matching paren */
6505     {
6506 	cap->oap->motion_type = MCHAR;
6507 	cap->oap->use_reg_one = TRUE;
6508 	if ((pos = findmatch(cap->oap, NUL)) == NULL)
6509 	    clearopbeep(cap->oap);
6510 	else
6511 	{
6512 	    setpcmark();
6513 	    curwin->w_cursor = *pos;
6514 	    curwin->w_set_curswant = TRUE;
6515 #ifdef FEAT_VIRTUALEDIT
6516 	    curwin->w_cursor.coladd = 0;
6517 #endif
6518 #ifdef FEAT_VISUAL
6519 	    adjust_for_sel(cap);
6520 #endif
6521 	}
6522     }
6523 #ifdef FEAT_FOLDING
6524     if (cap->oap->op_type == OP_NOP
6525 	    && lnum != curwin->w_cursor.lnum
6526 	    && (fdo_flags & FDO_PERCENT)
6527 	    && KeyTyped)
6528 	foldOpenCursor();
6529 #endif
6530 }
6531 
6532 /*
6533  * Handle "(" and ")" commands.
6534  * cap->arg is BACKWARD for "(" and FORWARD for ")".
6535  */
6536     static void
6537 nv_brace(cap)
6538     cmdarg_T	*cap;
6539 {
6540     cap->oap->motion_type = MCHAR;
6541     cap->oap->use_reg_one = TRUE;
6542     /* The motion used to be inclusive for "(", but that is not what Vi does. */
6543     cap->oap->inclusive = FALSE;
6544     curwin->w_set_curswant = TRUE;
6545 
6546     if (findsent(cap->arg, cap->count1) == FAIL)
6547 	clearopbeep(cap->oap);
6548     else
6549     {
6550 #ifdef FEAT_VIRTUALEDIT
6551 	curwin->w_cursor.coladd = 0;
6552 #endif
6553 #ifdef FEAT_FOLDING
6554 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6555 	    foldOpenCursor();
6556 #endif
6557     }
6558 }
6559 
6560 /*
6561  * "m" command: Mark a position.
6562  */
6563     static void
6564 nv_mark(cap)
6565     cmdarg_T	*cap;
6566 {
6567     if (!checkclearop(cap->oap))
6568     {
6569 	if (setmark(cap->nchar) == FAIL)
6570 	    clearopbeep(cap->oap);
6571     }
6572 }
6573 
6574 /*
6575  * "{" and "}" commands.
6576  * cmd->arg is BACKWARD for "{" and FORWARD for "}".
6577  */
6578     static void
6579 nv_findpar(cap)
6580     cmdarg_T	*cap;
6581 {
6582     cap->oap->motion_type = MCHAR;
6583     cap->oap->inclusive = FALSE;
6584     cap->oap->use_reg_one = TRUE;
6585     curwin->w_set_curswant = TRUE;
6586     if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, FALSE))
6587 	clearopbeep(cap->oap);
6588     else
6589     {
6590 #ifdef FEAT_VIRTUALEDIT
6591 	curwin->w_cursor.coladd = 0;
6592 #endif
6593 #ifdef FEAT_FOLDING
6594 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6595 	    foldOpenCursor();
6596 #endif
6597     }
6598 }
6599 
6600 /*
6601  * "u" command: Undo or make lower case.
6602  */
6603     static void
6604 nv_undo(cap)
6605     cmdarg_T	*cap;
6606 {
6607     if (cap->oap->op_type == OP_LOWER
6608 #ifdef FEAT_VISUAL
6609 	    || VIsual_active
6610 #endif
6611 	    )
6612     {
6613 	/* translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu" */
6614 	cap->cmdchar = 'g';
6615 	cap->nchar = 'u';
6616 	nv_operator(cap);
6617     }
6618     else
6619 	nv_kundo(cap);
6620 }
6621 
6622 /*
6623  * <Undo> command.
6624  */
6625     static void
6626 nv_kundo(cap)
6627     cmdarg_T	*cap;
6628 {
6629     if (!checkclearopq(cap->oap))
6630     {
6631 	u_undo((int)cap->count1);
6632 	curwin->w_set_curswant = TRUE;
6633     }
6634 }
6635 
6636 /*
6637  * Handle the "r" command.
6638  */
6639     static void
6640 nv_replace(cap)
6641     cmdarg_T	*cap;
6642 {
6643     char_u	*ptr;
6644     int		had_ctrl_v;
6645     long	n;
6646 
6647     if (checkclearop(cap->oap))
6648 	return;
6649 
6650     /* get another character */
6651     if (cap->nchar == Ctrl_V)
6652     {
6653 	had_ctrl_v = Ctrl_V;
6654 	cap->nchar = get_literal();
6655 	/* Don't redo a multibyte character with CTRL-V. */
6656 	if (cap->nchar > DEL)
6657 	    had_ctrl_v = NUL;
6658     }
6659     else
6660 	had_ctrl_v = NUL;
6661 
6662 #ifdef FEAT_VISUAL
6663     /* Visual mode "r" */
6664     if (VIsual_active)
6665     {
6666 	nv_operator(cap);
6667 	return;
6668     }
6669 #endif
6670 
6671 #ifdef FEAT_VIRTUALEDIT
6672     /* Break tabs, etc. */
6673     if (virtual_active())
6674     {
6675 	if (u_save_cursor() == FAIL)
6676 	    return;
6677 	if (gchar_cursor() == NUL)
6678 	{
6679 	    /* Add extra space and put the cursor on the first one. */
6680 	    coladvance_force((colnr_T)(getviscol() + cap->count1));
6681 	    curwin->w_cursor.col -= cap->count1;
6682 	}
6683 	else if (gchar_cursor() == TAB)
6684 	    coladvance_force(getviscol());
6685     }
6686 #endif
6687 
6688     /*
6689      * Check for a special key or not enough characters to replace.
6690      */
6691     ptr = ml_get_cursor();
6692     if (IS_SPECIAL(cap->nchar) || STRLEN(ptr) < (unsigned)cap->count1
6693 #ifdef FEAT_MBYTE
6694 	    || (has_mbyte && mb_charlen(ptr) < cap->count1)
6695 #endif
6696 	    )
6697     {
6698 	clearopbeep(cap->oap);
6699 	return;
6700     }
6701 
6702     /*
6703      * Replacing with a TAB is done by edit() when it is complicated because
6704      * 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
6705      * Other characters are done below to avoid problems with things like
6706      * CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
6707      */
6708     if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
6709     {
6710 	stuffnumReadbuff(cap->count1);
6711 	stuffcharReadbuff('R');
6712 	stuffcharReadbuff('\t');
6713 	stuffcharReadbuff(ESC);
6714 	return;
6715     }
6716 
6717     /* save line for undo */
6718     if (u_save_cursor() == FAIL)
6719 	return;
6720 
6721     if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
6722     {
6723 	/*
6724 	 * Replace character(s) by a single newline.
6725 	 * Strange vi behaviour: Only one newline is inserted.
6726 	 * Delete the characters here.
6727 	 * Insert the newline with an insert command, takes care of
6728 	 * autoindent.	The insert command depends on being on the last
6729 	 * character of a line or not.
6730 	 */
6731 #ifdef FEAT_MBYTE
6732 	(void)del_chars(cap->count1, FALSE);	/* delete the characters */
6733 #else
6734 	(void)del_bytes(cap->count1, FALSE, FALSE); /* delete the characters */
6735 #endif
6736 	stuffcharReadbuff('\r');
6737 	stuffcharReadbuff(ESC);
6738 
6739 	/* Give 'r' to edit(), to get the redo command right. */
6740 	invoke_edit(cap, TRUE, 'r', FALSE);
6741     }
6742     else
6743     {
6744 	prep_redo(cap->oap->regname, cap->count1,
6745 				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);
6746 
6747 	curbuf->b_op_start = curwin->w_cursor;
6748 #ifdef FEAT_MBYTE
6749 	if (has_mbyte)
6750 	{
6751 	    int		old_State = State;
6752 
6753 	    if (cap->ncharC1 != 0)
6754 		AppendCharToRedobuff(cap->ncharC1);
6755 	    if (cap->ncharC2 != 0)
6756 		AppendCharToRedobuff(cap->ncharC2);
6757 
6758 	    /* This is slow, but it handles replacing a single-byte with a
6759 	     * multi-byte and the other way around.  Also handles adding
6760 	     * composing characters for utf-8. */
6761 	    for (n = cap->count1; n > 0; --n)
6762 	    {
6763 		State = REPLACE;
6764 		ins_char(cap->nchar);
6765 		State = old_State;
6766 		if (cap->ncharC1 != 0)
6767 		    ins_char(cap->ncharC1);
6768 		if (cap->ncharC2 != 0)
6769 		    ins_char(cap->ncharC2);
6770 	    }
6771 	}
6772 	else
6773 #endif
6774 	{
6775 	    /*
6776 	     * Replace the characters within one line.
6777 	     */
6778 	    for (n = cap->count1; n > 0; --n)
6779 	    {
6780 		/*
6781 		 * Get ptr again, because u_save and/or showmatch() will have
6782 		 * released the line.  At the same time we let know that the
6783 		 * line will be changed.
6784 		 */
6785 		ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
6786 		ptr[curwin->w_cursor.col] = cap->nchar;
6787 		if (p_sm && msg_silent == 0)
6788 		    showmatch(cap->nchar);
6789 		++curwin->w_cursor.col;
6790 	    }
6791 #ifdef FEAT_NETBEANS_INTG
6792 	    if (usingNetbeans)
6793 	    {
6794 		colnr_T start = (colnr_T)(curwin->w_cursor.col - cap->count1);
6795 
6796 		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
6797 							    (long)cap->count1);
6798 		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
6799 					       &ptr[start], (int)cap->count1);
6800 	    }
6801 #endif
6802 
6803 	    /* mark the buffer as changed and prepare for displaying */
6804 	    changed_bytes(curwin->w_cursor.lnum,
6805 			       (colnr_T)(curwin->w_cursor.col - cap->count1));
6806 	}
6807 	--curwin->w_cursor.col;	    /* cursor on the last replaced char */
6808 #ifdef FEAT_MBYTE
6809 	/* if the character on the left of the current cursor is a multi-byte
6810 	 * character, move two characters left */
6811 	if (has_mbyte)
6812 	    mb_adjust_cursor();
6813 #endif
6814 	curbuf->b_op_end = curwin->w_cursor;
6815 	curwin->w_set_curswant = TRUE;
6816 	set_last_insert(cap->nchar);
6817     }
6818 }
6819 
6820 #ifdef FEAT_VISUAL
6821 /*
6822  * 'o': Exchange start and end of Visual area.
6823  * 'O': same, but in block mode exchange left and right corners.
6824  */
6825     static void
6826 v_swap_corners(cmdchar)
6827     int		cmdchar;
6828 {
6829     pos_T	old_cursor;
6830     colnr_T	left, right;
6831 
6832     if (cmdchar == 'O' && VIsual_mode == Ctrl_V)
6833     {
6834 	old_cursor = curwin->w_cursor;
6835 	getvcols(curwin, &old_cursor, &VIsual, &left, &right);
6836 	curwin->w_cursor.lnum = VIsual.lnum;
6837 	coladvance(left);
6838 	VIsual = curwin->w_cursor;
6839 
6840 	curwin->w_cursor.lnum = old_cursor.lnum;
6841 	curwin->w_curswant = right;
6842 	/* 'selection "exclusive" and cursor at right-bottom corner: move it
6843 	 * right one column */
6844 	if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e')
6845 	    ++curwin->w_curswant;
6846 	coladvance(curwin->w_curswant);
6847 	if (curwin->w_cursor.col == old_cursor.col
6848 #ifdef FEAT_VIRTUALEDIT
6849 		&& (!virtual_active()
6850 		    || curwin->w_cursor.coladd == old_cursor.coladd)
6851 #endif
6852 		)
6853 	{
6854 	    curwin->w_cursor.lnum = VIsual.lnum;
6855 	    if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e')
6856 		++right;
6857 	    coladvance(right);
6858 	    VIsual = curwin->w_cursor;
6859 
6860 	    curwin->w_cursor.lnum = old_cursor.lnum;
6861 	    coladvance(left);
6862 	    curwin->w_curswant = left;
6863 	}
6864     }
6865     else
6866     {
6867 	old_cursor = curwin->w_cursor;
6868 	curwin->w_cursor = VIsual;
6869 	VIsual = old_cursor;
6870 	curwin->w_set_curswant = TRUE;
6871     }
6872 }
6873 #endif /* FEAT_VISUAL */
6874 
6875 /*
6876  * "R" (cap->arg is FALSE) and "gR" (cap->arg is TRUE).
6877  */
6878     static void
6879 nv_Replace(cap)
6880     cmdarg_T	    *cap;
6881 {
6882 #ifdef FEAT_VISUAL
6883     if (VIsual_active)		/* "R" is replace lines */
6884     {
6885 	cap->cmdchar = 'c';
6886 	cap->nchar = NUL;
6887 	VIsual_mode = 'V';
6888 	nv_operator(cap);
6889     }
6890     else
6891 #endif
6892 	if (!checkclearopq(cap->oap))
6893     {
6894 	if (!curbuf->b_p_ma)
6895 	    EMSG(_(e_modifiable));
6896 	else
6897 	{
6898 #ifdef FEAT_VIRTUALEDIT
6899 	    if (virtual_active())
6900 		coladvance(getviscol());
6901 #endif
6902 	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
6903 	}
6904     }
6905 }
6906 
6907 #ifdef FEAT_VREPLACE
6908 /*
6909  * "gr".
6910  */
6911     static void
6912 nv_vreplace(cap)
6913     cmdarg_T	*cap;
6914 {
6915 # ifdef FEAT_VISUAL
6916     if (VIsual_active)
6917     {
6918 	cap->cmdchar = 'r';
6919 	cap->nchar = cap->extra_char;
6920 	nv_replace(cap);	/* Do same as "r" in Visual mode for now */
6921     }
6922     else
6923 # endif
6924 	if (!checkclearopq(cap->oap))
6925     {
6926 	if (!curbuf->b_p_ma)
6927 	    EMSG(_(e_modifiable));
6928 	else
6929 	{
6930 	    if (cap->extra_char == Ctrl_V)	/* get another character */
6931 		cap->extra_char = get_literal();
6932 	    stuffcharReadbuff(cap->extra_char);
6933 	    stuffcharReadbuff(ESC);
6934 # ifdef FEAT_VIRTUALEDIT
6935 	    if (virtual_active())
6936 		coladvance(getviscol());
6937 # endif
6938 	    invoke_edit(cap, TRUE, 'v', FALSE);
6939 	}
6940     }
6941 }
6942 #endif
6943 
6944 /*
6945  * Swap case for "~" command, when it does not work like an operator.
6946  */
6947     static void
6948 n_swapchar(cap)
6949     cmdarg_T	*cap;
6950 {
6951     long	n;
6952     pos_T	startpos;
6953     int		did_change = 0;
6954 #ifdef FEAT_NETBEANS_INTG
6955     pos_T	pos;
6956     char_u	*ptr;
6957     int		count;
6958 #endif
6959 
6960     if (checkclearopq(cap->oap))
6961 	return;
6962 
6963     if (lineempty(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
6964     {
6965 	clearopbeep(cap->oap);
6966 	return;
6967     }
6968 
6969     prep_redo_cmd(cap);
6970 
6971     if (u_save_cursor() == FAIL)
6972 	return;
6973 
6974     startpos = curwin->w_cursor;
6975 #ifdef FEAT_NETBEANS_INTG
6976     pos = startpos;
6977 #endif
6978     for (n = cap->count1; n > 0; --n)
6979     {
6980 	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
6981 	inc_cursor();
6982 	if (gchar_cursor() == NUL)
6983 	{
6984 	    if (vim_strchr(p_ww, '~') != NULL
6985 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
6986 	    {
6987 #ifdef FEAT_NETBEANS_INTG
6988 		if (usingNetbeans)
6989 		{
6990 		    if (did_change)
6991 		    {
6992 			ptr = ml_get(pos.lnum);
6993 			count = (int)STRLEN(ptr) - pos.col;
6994 			netbeans_removed(curbuf, pos.lnum, pos.col,
6995 								 (long)count);
6996 			netbeans_inserted(curbuf, pos.lnum, pos.col,
6997 							&ptr[pos.col], count);
6998 		    }
6999 		    pos.col = 0;
7000 		    pos.lnum++;
7001 		}
7002 #endif
7003 		++curwin->w_cursor.lnum;
7004 		curwin->w_cursor.col = 0;
7005 		if (n > 1)
7006 		{
7007 		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
7008 			break;
7009 		    u_clearline();
7010 		}
7011 	    }
7012 	    else
7013 		break;
7014 	}
7015     }
7016 #ifdef FEAT_NETBEANS_INTG
7017     if (did_change && usingNetbeans)
7018     {
7019 	ptr = ml_get(pos.lnum);
7020 	count = curwin->w_cursor.col - pos.col;
7021 	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
7022 	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
7023     }
7024 #endif
7025 
7026 
7027     check_cursor();
7028     curwin->w_set_curswant = TRUE;
7029     if (did_change)
7030     {
7031 	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
7032 									  0L);
7033 	curbuf->b_op_start = startpos;
7034 	curbuf->b_op_end = curwin->w_cursor;
7035 	if (curbuf->b_op_end.col > 0)
7036 	    --curbuf->b_op_end.col;
7037     }
7038 }
7039 
7040 /*
7041  * Move cursor to mark.
7042  */
7043     static void
7044 nv_cursormark(cap, flag, pos)
7045     cmdarg_T	*cap;
7046     int		flag;
7047     pos_T	*pos;
7048 {
7049     if (check_mark(pos) == FAIL)
7050 	clearop(cap->oap);
7051     else
7052     {
7053 	if (cap->cmdchar == '\''
7054 		|| cap->cmdchar == '`'
7055 		|| cap->cmdchar == '['
7056 		|| cap->cmdchar == ']')
7057 	    setpcmark();
7058 	curwin->w_cursor = *pos;
7059 	if (flag)
7060 	    beginline(BL_WHITE | BL_FIX);
7061 	else
7062 	    check_cursor();
7063     }
7064     cap->oap->motion_type = flag ? MLINE : MCHAR;
7065     if (cap->cmdchar == '`')
7066 	cap->oap->use_reg_one = TRUE;
7067     cap->oap->inclusive = FALSE;		/* ignored if not MCHAR */
7068     curwin->w_set_curswant = TRUE;
7069 }
7070 
7071 #ifdef FEAT_VISUAL
7072 /*
7073  * Handle commands that are operators in Visual mode.
7074  */
7075     static void
7076 v_visop(cap)
7077     cmdarg_T	*cap;
7078 {
7079     static char_u trans[] = "YyDdCcxdXdAAIIrr";
7080 
7081     /* Uppercase means linewise, except in block mode, then "D" deletes till
7082      * the end of the line, and "C" replaces til EOL */
7083     if (isupper(cap->cmdchar))
7084     {
7085 	if (VIsual_mode != Ctrl_V)
7086 	    VIsual_mode = 'V';
7087 	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
7088 	    curwin->w_curswant = MAXCOL;
7089     }
7090     cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
7091     nv_operator(cap);
7092 }
7093 #endif
7094 
7095 /*
7096  * "s" and "S" commands.
7097  */
7098     static void
7099 nv_subst(cap)
7100     cmdarg_T	*cap;
7101 {
7102 #ifdef FEAT_VISUAL
7103     if (VIsual_active)	/* "vs" and "vS" are the same as "vc" */
7104     {
7105 	if (cap->cmdchar == 'S')
7106 	    VIsual_mode = 'V';
7107 	cap->cmdchar = 'c';
7108 	nv_operator(cap);
7109     }
7110     else
7111 #endif
7112 	nv_optrans(cap);
7113 }
7114 
7115 /*
7116  * Abbreviated commands.
7117  */
7118     static void
7119 nv_abbrev(cap)
7120     cmdarg_T	*cap;
7121 {
7122     if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
7123 	cap->cmdchar = 'x';		/* DEL key behaves like 'x' */
7124 
7125 #ifdef FEAT_VISUAL
7126     /* in Visual mode these commands are operators */
7127     if (VIsual_active)
7128 	v_visop(cap);
7129     else
7130 #endif
7131 	nv_optrans(cap);
7132 }
7133 
7134 /*
7135  * Translate a command into another command.
7136  */
7137     static void
7138 nv_optrans(cap)
7139     cmdarg_T	*cap;
7140 {
7141     static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
7142 			      (char_u *)"d$", (char_u *)"c$",
7143 			      (char_u *)"cl", (char_u *)"cc",
7144 			      (char_u *)"yy", (char_u *)":s\r"};
7145     static char_u *str = (char_u *)"xXDCsSY&";
7146 
7147     if (!checkclearopq(cap->oap))
7148     {
7149 	/* In Vi "2D" doesn't delete the next line.  Can't translate it
7150 	 * either, because "2." should also not use the count. */
7151 	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
7152 	{
7153 	    cap->oap->start = curwin->w_cursor;
7154 	    cap->oap->op_type = OP_DELETE;
7155 	    cap->count1 = 1;
7156 	    nv_dollar(cap);
7157 	    finish_op = TRUE;
7158 	    ResetRedobuff();
7159 	    AppendCharToRedobuff('D');
7160 	}
7161 	else
7162 	{
7163 	    if (cap->count0)
7164 		stuffnumReadbuff(cap->count0);
7165 	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
7166 	}
7167     }
7168     cap->opcount = 0;
7169 }
7170 
7171 /*
7172  * "'" and "`" commands.  Also for "g'" and "g`".
7173  * cap->arg is TRUE for "'" and "g'".
7174  */
7175     static void
7176 nv_gomark(cap)
7177     cmdarg_T	*cap;
7178 {
7179     pos_T	*pos;
7180     int		c;
7181 #ifdef FEAT_FOLDING
7182     linenr_T	lnum = curwin->w_cursor.lnum;
7183     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7184 #endif
7185 
7186     if (cap->cmdchar == 'g')
7187 	c = cap->extra_char;
7188     else
7189 	c = cap->nchar;
7190     pos = getmark(c, (cap->oap->op_type == OP_NOP));
7191     if (pos == (pos_T *)-1)	    /* jumped to other file */
7192     {
7193 	if (cap->arg)
7194 	{
7195 	    check_cursor_lnum();
7196 	    beginline(BL_WHITE | BL_FIX);
7197 	}
7198 	else
7199 	    check_cursor();
7200     }
7201     else
7202 	nv_cursormark(cap, cap->arg, pos);
7203 
7204 #ifdef FEAT_VIRTUALEDIT
7205     /* May need to clear the coladd that a mark includes. */
7206     if (!virtual_active())
7207 	curwin->w_cursor.coladd = 0;
7208 #endif
7209 #ifdef FEAT_FOLDING
7210     if (cap->oap->op_type == OP_NOP
7211 	    && (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
7212 	    && (fdo_flags & FDO_MARK)
7213 	    && old_KeyTyped)
7214 	foldOpenCursor();
7215 #endif
7216 }
7217 
7218 /*
7219  * Handle CTRL-O, CTRL-I, "g;" and "g," commands.
7220  */
7221     static void
7222 nv_pcmark(cap)
7223     cmdarg_T	*cap;
7224 {
7225 #ifdef FEAT_JUMPLIST
7226     pos_T	*pos;
7227 # ifdef FEAT_FOLDING
7228     linenr_T	lnum = curwin->w_cursor.lnum;
7229     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7230 # endif
7231 
7232     if (!checkclearopq(cap->oap))
7233     {
7234 	if (cap->cmdchar == 'g')
7235 	    pos = movechangelist((int)cap->count1);
7236 	else
7237 	    pos = movemark((int)cap->count1);
7238 	if (pos == (pos_T *)-1)		/* jump to other file */
7239 	{
7240 	    curwin->w_set_curswant = TRUE;
7241 	    check_cursor();
7242 	}
7243 	else if (pos != NULL)		    /* can jump */
7244 	    nv_cursormark(cap, FALSE, pos);
7245 	else if (cap->cmdchar == 'g')
7246 	{
7247 	    if (curbuf->b_changelistlen == 0)
7248 		EMSG(_("E664: changelist is empty"));
7249 	    else if (cap->count1 < 0)
7250 		EMSG(_("E662: At start of changelist"));
7251 	    else
7252 		EMSG(_("E663: At end of changelist"));
7253 	}
7254 	else
7255 	    clearopbeep(cap->oap);
7256 # ifdef FEAT_FOLDING
7257 	if (cap->oap->op_type == OP_NOP
7258 		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
7259 		&& (fdo_flags & FDO_MARK)
7260 		&& old_KeyTyped)
7261 	    foldOpenCursor();
7262 # endif
7263     }
7264 #else
7265     clearopbeep(cap->oap);
7266 #endif
7267 }
7268 
7269 /*
7270  * Handle '"' command.
7271  */
7272     static void
7273 nv_regname(cap)
7274     cmdarg_T	*cap;
7275 {
7276     if (checkclearop(cap->oap))
7277 	return;
7278 #ifdef FEAT_EVAL
7279     if (cap->nchar == '=')
7280 	cap->nchar = get_expr_register();
7281 #endif
7282     if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
7283     {
7284 	cap->oap->regname = cap->nchar;
7285 	cap->opcount = cap->count0;	/* remember count before '"' */
7286 #ifdef FEAT_EVAL
7287 	set_reg_var(cap->oap->regname);
7288 #endif
7289     }
7290     else
7291 	clearopbeep(cap->oap);
7292 }
7293 
7294 #ifdef FEAT_VISUAL
7295 /*
7296  * Handle "v", "V" and "CTRL-V" commands.
7297  * Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
7298  * is TRUE.
7299  * Handle CTRL-Q just like CTRL-V.
7300  */
7301     static void
7302 nv_visual(cap)
7303     cmdarg_T	*cap;
7304 {
7305     if (cap->cmdchar == Ctrl_Q)
7306 	cap->cmdchar = Ctrl_V;
7307 
7308     /* 'v', 'V' and CTRL-V can be used while an operator is pending to make it
7309      * characterwise, linewise, or blockwise. */
7310     if (cap->oap->op_type != OP_NOP)
7311     {
7312 	cap->oap->motion_force = cap->cmdchar;
7313 	finish_op = FALSE;	/* operator doesn't finish now but later */
7314 	return;
7315     }
7316 
7317     VIsual_select = cap->arg;
7318     if (VIsual_active)	    /* change Visual mode */
7319     {
7320 	if (VIsual_mode == cap->cmdchar)    /* stop visual mode */
7321 	    end_visual_mode();
7322 	else				    /* toggle char/block mode */
7323 	{				    /*	   or char/line mode */
7324 	    VIsual_mode = cap->cmdchar;
7325 	    showmode();
7326 	}
7327 	redraw_curbuf_later(INVERTED);	    /* update the inversion */
7328     }
7329     else		    /* start Visual mode */
7330     {
7331 	check_visual_highlight();
7332 	if (cap->count0)		    /* use previously selected part */
7333 	{
7334 	    if (resel_VIsual_mode == NUL)   /* there is none */
7335 	    {
7336 		beep_flush();
7337 		return;
7338 	    }
7339 	    VIsual = curwin->w_cursor;
7340 
7341 	    VIsual_active = TRUE;
7342 	    VIsual_reselect = TRUE;
7343 	    if (!cap->arg)
7344 		/* start Select mode when 'selectmode' contains "cmd" */
7345 		may_start_select('c');
7346 #ifdef FEAT_MOUSE
7347 	    setmouse();
7348 #endif
7349 	    if (p_smd && msg_silent == 0)
7350 		redraw_cmdline = TRUE;	    /* show visual mode later */
7351 	    /*
7352 	     * For V and ^V, we multiply the number of lines even if there
7353 	     * was only one -- webb
7354 	     */
7355 	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
7356 	    {
7357 		curwin->w_cursor.lnum +=
7358 				    resel_VIsual_line_count * cap->count0 - 1;
7359 		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
7360 		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
7361 	    }
7362 	    VIsual_mode = resel_VIsual_mode;
7363 	    if (VIsual_mode == 'v')
7364 	    {
7365 		if (resel_VIsual_line_count <= 1)
7366 		    curwin->w_cursor.col += resel_VIsual_col * cap->count0 - 1;
7367 		else
7368 		    curwin->w_cursor.col = resel_VIsual_col;
7369 		check_cursor_col();
7370 	    }
7371 	    if (resel_VIsual_col == MAXCOL)
7372 	    {
7373 		curwin->w_curswant = MAXCOL;
7374 		coladvance((colnr_T)MAXCOL);
7375 	    }
7376 	    else if (VIsual_mode == Ctrl_V)
7377 	    {
7378 		validate_virtcol();
7379 		curwin->w_curswant = curwin->w_virtcol
7380 					 + resel_VIsual_col * cap->count0 - 1;
7381 		coladvance(curwin->w_curswant);
7382 	    }
7383 	    else
7384 		curwin->w_set_curswant = TRUE;
7385 	    redraw_curbuf_later(INVERTED);	/* show the inversion */
7386 	}
7387 	else
7388 	{
7389 	    if (!cap->arg)
7390 		/* start Select mode when 'selectmode' contains "cmd" */
7391 		may_start_select('c');
7392 	    n_start_visual_mode(cap->cmdchar);
7393 	}
7394     }
7395 }
7396 
7397 /*
7398  * Start selection for Shift-movement keys.
7399  */
7400     void
7401 start_selection()
7402 {
7403     /* if 'selectmode' contains "key", start Select mode */
7404     may_start_select('k');
7405     n_start_visual_mode('v');
7406 }
7407 
7408 /*
7409  * Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
7410  */
7411     void
7412 may_start_select(c)
7413     int		c;
7414 {
7415     VIsual_select = (stuff_empty() && typebuf_typed()
7416 		    && (vim_strchr(p_slm, c) != NULL));
7417 }
7418 
7419 /*
7420  * Start Visual mode "c".
7421  * Should set VIsual_select before calling this.
7422  */
7423     static void
7424 n_start_visual_mode(c)
7425     int		c;
7426 {
7427     VIsual_mode = c;
7428     VIsual_active = TRUE;
7429     VIsual_reselect = TRUE;
7430 #ifdef FEAT_VIRTUALEDIT
7431     /* Corner case: the 0 position in a tab may change when going into
7432      * virtualedit.  Recalculate curwin->w_cursor to avoid bad hilighting.
7433      */
7434     if (c == Ctrl_V && (ve_flags & VE_BLOCK) && gchar_cursor() == TAB)
7435 	coladvance(curwin->w_virtcol);
7436 #endif
7437     VIsual = curwin->w_cursor;
7438 
7439 #ifdef FEAT_FOLDING
7440     foldAdjustVisual();
7441 #endif
7442 
7443 #ifdef FEAT_MOUSE
7444     setmouse();
7445 #endif
7446     if (p_smd && msg_silent == 0)
7447 	redraw_cmdline = TRUE;	/* show visual mode later */
7448 #ifdef FEAT_CLIPBOARD
7449     /* Make sure the clipboard gets updated.  Needed because start and
7450      * end may still be the same, and the selection needs to be owned */
7451     clip_star.vmode = NUL;
7452 #endif
7453 
7454     /* Only need to redraw this line, unless still need to redraw an old
7455      * Visual area (when 'lazyredraw' is set). */
7456     if (curwin->w_redr_type < INVERTED)
7457     {
7458 	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
7459 	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
7460     }
7461 }
7462 
7463 #endif /* FEAT_VISUAL */
7464 
7465 /*
7466  * CTRL-W: Window commands
7467  */
7468     static void
7469 nv_window(cap)
7470     cmdarg_T	*cap;
7471 {
7472 #ifdef FEAT_WINDOWS
7473     if (!checkclearop(cap->oap))
7474 	do_window(cap->nchar, cap->count0, NUL); /* everything is in window.c */
7475 #else
7476     (void)checkclearop(cap->oap);
7477 #endif
7478 }
7479 
7480 /*
7481  * CTRL-Z: Suspend
7482  */
7483     static void
7484 nv_suspend(cap)
7485     cmdarg_T	*cap;
7486 {
7487     clearop(cap->oap);
7488 #ifdef FEAT_VISUAL
7489     if (VIsual_active)
7490 	end_visual_mode();		/* stop Visual mode */
7491 #endif
7492     do_cmdline_cmd((char_u *)"st");
7493 }
7494 
7495 /*
7496  * Commands starting with "g".
7497  */
7498     static void
7499 nv_g_cmd(cap)
7500     cmdarg_T	*cap;
7501 {
7502     oparg_T	*oap = cap->oap;
7503 #ifdef FEAT_VISUAL
7504     pos_T	tpos;
7505 #endif
7506     int		i;
7507     int		flag = FALSE;
7508 
7509     switch (cap->nchar)
7510     {
7511 #ifdef MEM_PROFILE
7512     /*
7513      * "g^A": dump log of used memory.
7514      */
7515     case Ctrl_A:
7516 	vim_mem_profile_dump();
7517 	break;
7518 #endif
7519 
7520 #ifdef FEAT_VREPLACE
7521     /*
7522      * "gR": Enter virtual replace mode.
7523      */
7524     case 'R':
7525 	cap->arg = TRUE;
7526 	nv_Replace(cap);
7527 	break;
7528 
7529     case 'r':
7530 	nv_vreplace(cap);
7531 	break;
7532 #endif
7533 
7534     case '&':
7535 	do_cmdline_cmd((char_u *)"%s//~/&");
7536 	break;
7537 
7538 #ifdef FEAT_VISUAL
7539     /*
7540      * "gv": Reselect the previous Visual area.  If Visual already active,
7541      *	     exchange previous and current Visual area.
7542      */
7543     case 'v':
7544 	if (checkclearop(oap))
7545 	    break;
7546 
7547 	if (	   curbuf->b_visual.vi_start.lnum == 0
7548 		|| curbuf->b_visual.vi_start.lnum > curbuf->b_ml.ml_line_count
7549 		|| curbuf->b_visual.vi_end.lnum == 0)
7550 	    beep_flush();
7551 	else
7552 	{
7553 	    /* set w_cursor to the start of the Visual area, tpos to the end */
7554 	    if (VIsual_active)
7555 	    {
7556 		i = VIsual_mode;
7557 		VIsual_mode = curbuf->b_visual.vi_mode;
7558 		curbuf->b_visual.vi_mode = i;
7559 # ifdef FEAT_EVAL
7560 		curbuf->b_visual_mode_eval = i;
7561 # endif
7562 		i = curwin->w_curswant;
7563 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7564 		curbuf->b_visual.vi_curswant = i;
7565 
7566 		tpos = curbuf->b_visual.vi_end;
7567 		curbuf->b_visual.vi_end = curwin->w_cursor;
7568 		curwin->w_cursor = curbuf->b_visual.vi_start;
7569 		curbuf->b_visual.vi_start = VIsual;
7570 	    }
7571 	    else
7572 	    {
7573 		VIsual_mode = curbuf->b_visual.vi_mode;
7574 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7575 		tpos = curbuf->b_visual.vi_end;
7576 		curwin->w_cursor = curbuf->b_visual.vi_start;
7577 	    }
7578 
7579 	    VIsual_active = TRUE;
7580 	    VIsual_reselect = TRUE;
7581 
7582 	    /* Set Visual to the start and w_cursor to the end of the Visual
7583 	     * area.  Make sure they are on an existing character. */
7584 	    check_cursor();
7585 	    VIsual = curwin->w_cursor;
7586 	    curwin->w_cursor = tpos;
7587 	    check_cursor();
7588 	    update_topline();
7589 	    /*
7590 	     * When called from normal "g" command: start Select mode when
7591 	     * 'selectmode' contains "cmd".  When called for K_SELECT, always
7592 	     * start Select mode.
7593 	     */
7594 	    if (cap->arg)
7595 		VIsual_select = TRUE;
7596 	    else
7597 		may_start_select('c');
7598 #ifdef FEAT_MOUSE
7599 	    setmouse();
7600 #endif
7601 #ifdef FEAT_CLIPBOARD
7602 	    /* Make sure the clipboard gets updated.  Needed because start and
7603 	     * end are still the same, and the selection needs to be owned */
7604 	    clip_star.vmode = NUL;
7605 #endif
7606 	    redraw_curbuf_later(INVERTED);
7607 	    showmode();
7608 	}
7609 	break;
7610     /*
7611      * "gV": Don't reselect the previous Visual area after a Select mode
7612      *	     mapping of menu.
7613      */
7614     case 'V':
7615 	VIsual_reselect = FALSE;
7616 	break;
7617 
7618     /*
7619      * "gh":  start Select mode.
7620      * "gH":  start Select line mode.
7621      * "g^H": start Select block mode.
7622      */
7623     case K_BS:
7624 	cap->nchar = Ctrl_H;
7625 	/* FALLTHROUGH */
7626     case 'h':
7627     case 'H':
7628     case Ctrl_H:
7629 # ifdef EBCDIC
7630 	/* EBCDIC: 'v'-'h' != '^v'-'^h' */
7631 	if (cap->nchar == Ctrl_H)
7632 	    cap->cmdchar = Ctrl_V;
7633 	else
7634 # endif
7635 	cap->cmdchar = cap->nchar + ('v' - 'h');
7636 	cap->arg = TRUE;
7637 	nv_visual(cap);
7638 	break;
7639 #endif /* FEAT_VISUAL */
7640 
7641     /*
7642      * "gj" and "gk" two new funny movement keys -- up and down
7643      * movement based on *screen* line rather than *file* line.
7644      */
7645     case 'j':
7646     case K_DOWN:
7647 	/* with 'nowrap' it works just like the normal "j" command; also when
7648 	 * in a closed fold */
7649 	if (!curwin->w_p_wrap
7650 #ifdef FEAT_FOLDING
7651 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7652 #endif
7653 		)
7654 	{
7655 	    oap->motion_type = MLINE;
7656 	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
7657 	}
7658 	else
7659 	    i = nv_screengo(oap, FORWARD, cap->count1);
7660 	if (i == FAIL)
7661 	    clearopbeep(oap);
7662 	break;
7663 
7664     case 'k':
7665     case K_UP:
7666 	/* with 'nowrap' it works just like the normal "k" command; also when
7667 	 * in a closed fold */
7668 	if (!curwin->w_p_wrap
7669 #ifdef FEAT_FOLDING
7670 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7671 #endif
7672 	   )
7673 	{
7674 	    oap->motion_type = MLINE;
7675 	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
7676 	}
7677 	else
7678 	    i = nv_screengo(oap, BACKWARD, cap->count1);
7679 	if (i == FAIL)
7680 	    clearopbeep(oap);
7681 	break;
7682 
7683     /*
7684      * "gJ": join two lines without inserting a space.
7685      */
7686     case 'J':
7687 	nv_join(cap);
7688 	break;
7689 
7690     /*
7691      * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
7692      * "gm": middle of "g0" and "g$".
7693      */
7694     case '^':
7695 	flag = TRUE;
7696 	/* FALLTHROUGH */
7697 
7698     case '0':
7699     case 'm':
7700     case K_HOME:
7701     case K_KHOME:
7702 	oap->motion_type = MCHAR;
7703 	oap->inclusive = FALSE;
7704 	if (curwin->w_p_wrap
7705 #ifdef FEAT_VERTSPLIT
7706 		&& curwin->w_width != 0
7707 #endif
7708 		)
7709 	{
7710 	    int		width1 = W_WIDTH(curwin) - curwin_col_off();
7711 	    int		width2 = width1 + curwin_col_off2();
7712 
7713 	    validate_virtcol();
7714 	    i = 0;
7715 	    if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
7716 		i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
7717 	}
7718 	else
7719 	    i = curwin->w_leftcol;
7720 	/* Go to the middle of the screen line.  When 'number' is on and lines
7721 	 * are wrapping the middle can be more to the left.*/
7722 	if (cap->nchar == 'm')
7723 	    i += (W_WIDTH(curwin) - curwin_col_off()
7724 		    + ((curwin->w_p_wrap && i > 0)
7725 			? curwin_col_off2() : 0)) / 2;
7726 	coladvance((colnr_T)i);
7727 	if (flag)
7728 	{
7729 	    do
7730 		i = gchar_cursor();
7731 	    while (vim_iswhite(i) && oneright() == OK);
7732 	}
7733 	curwin->w_set_curswant = TRUE;
7734 	break;
7735 
7736     case '_':
7737 	/* "g_": to the last non-blank character in the line or <count> lines
7738 	 * downward. */
7739 	cap->oap->motion_type = MCHAR;
7740 	cap->oap->inclusive = TRUE;
7741 	curwin->w_curswant = MAXCOL;
7742 	if (cursor_down((long)(cap->count1 - 1),
7743 					 cap->oap->op_type == OP_NOP) == FAIL)
7744 	    clearopbeep(cap->oap);
7745 	else
7746 	{
7747 	    char_u  *ptr = ml_get_curline();
7748 
7749 	    /* In Visual mode we may end up after the line. */
7750 	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
7751 		--curwin->w_cursor.col;
7752 
7753 	    /* Decrease the cursor column until it's on a non-blank. */
7754 	    while (curwin->w_cursor.col > 0
7755 				    && vim_iswhite(ptr[curwin->w_cursor.col]))
7756 		--curwin->w_cursor.col;
7757 	    curwin->w_set_curswant = TRUE;
7758 	}
7759 	break;
7760 
7761     case '$':
7762     case K_END:
7763     case K_KEND:
7764 	{
7765 	    int col_off = curwin_col_off();
7766 
7767 	    oap->motion_type = MCHAR;
7768 	    oap->inclusive = TRUE;
7769 	    if (curwin->w_p_wrap
7770 #ifdef FEAT_VERTSPLIT
7771 		    && curwin->w_width != 0
7772 #endif
7773 	       )
7774 	    {
7775 		curwin->w_curswant = MAXCOL;    /* so we stay at the end */
7776 		if (cap->count1 == 1)
7777 		{
7778 		    int		width1 = W_WIDTH(curwin) - col_off;
7779 		    int		width2 = width1 + curwin_col_off2();
7780 
7781 		    validate_virtcol();
7782 		    i = width1 - 1;
7783 		    if (curwin->w_virtcol >= (colnr_T)width1)
7784 			i += ((curwin->w_virtcol - width1) / width2 + 1)
7785 								     * width2;
7786 		    coladvance((colnr_T)i);
7787 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
7788 		    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
7789 		    {
7790 			/*
7791 			 * Check for landing on a character that got split at
7792 			 * the end of the line.  We do not want to advance to
7793 			 * the next screen line.
7794 			 */
7795 			validate_virtcol();
7796 			if (curwin->w_virtcol > (colnr_T)i)
7797 			    --curwin->w_cursor.col;
7798 		    }
7799 #endif
7800 		}
7801 		else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
7802 		    clearopbeep(oap);
7803 	    }
7804 	    else
7805 	    {
7806 		i = curwin->w_leftcol + W_WIDTH(curwin) - col_off - 1;
7807 		coladvance((colnr_T)i);
7808 
7809 		/* Make sure we stick in this column. */
7810 		validate_virtcol();
7811 		curwin->w_curswant = curwin->w_virtcol;
7812 		curwin->w_set_curswant = FALSE;
7813 	    }
7814 	}
7815 	break;
7816 
7817     /*
7818      * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
7819      */
7820     case '*':
7821     case '#':
7822 #if POUND != '#'
7823     case POUND:		/* pound sign (sometimes equal to '#') */
7824 #endif
7825     case Ctrl_RSB:		/* :tag or :tselect for current identifier */
7826     case ']':			/* :tselect for current identifier */
7827 	nv_ident(cap);
7828 	break;
7829 
7830     /*
7831      * ge and gE: go back to end of word
7832      */
7833     case 'e':
7834     case 'E':
7835 	oap->motion_type = MCHAR;
7836 	curwin->w_set_curswant = TRUE;
7837 	oap->inclusive = TRUE;
7838 	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
7839 	    clearopbeep(oap);
7840 	break;
7841 
7842     /*
7843      * "g CTRL-G": display info about cursor position
7844      */
7845     case Ctrl_G:
7846 	cursor_pos_info();
7847 	break;
7848 
7849     /*
7850      * "gi": start Insert at the last position.
7851      */
7852     case 'i':
7853 	if (curbuf->b_last_insert.lnum != 0)
7854 	{
7855 	    curwin->w_cursor = curbuf->b_last_insert;
7856 	    check_cursor_lnum();
7857 	    i = (int)STRLEN(ml_get_curline());
7858 	    if (curwin->w_cursor.col > (colnr_T)i)
7859 	    {
7860 #ifdef FEAT_VIRTUALEDIT
7861 		if (virtual_active())
7862 		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
7863 #endif
7864 		curwin->w_cursor.col = i;
7865 	    }
7866 	}
7867 	cap->cmdchar = 'i';
7868 	nv_edit(cap);
7869 	break;
7870 
7871     /*
7872      * "gI": Start insert in column 1.
7873      */
7874     case 'I':
7875 	beginline(0);
7876 	if (!checkclearopq(oap))
7877 	    invoke_edit(cap, FALSE, 'g', FALSE);
7878 	break;
7879 
7880 #ifdef FEAT_SEARCHPATH
7881     /*
7882      * "gf": goto file, edit file under cursor
7883      * "]f" and "[f": can also be used.
7884      */
7885     case 'f':
7886     case 'F':
7887 	nv_gotofile(cap);
7888 	break;
7889 #endif
7890 
7891 	/* "g'm" and "g`m": jump to mark without setting pcmark */
7892     case '\'':
7893 	cap->arg = TRUE;
7894 	/*FALLTHROUGH*/
7895     case '`':
7896 	nv_gomark(cap);
7897 	break;
7898 
7899     /*
7900      * "gs": Goto sleep.
7901      */
7902     case 's':
7903 	do_sleep(cap->count1 * 1000L);
7904 	break;
7905 
7906     /*
7907      * "ga": Display the ascii value of the character under the
7908      * cursor.	It is displayed in decimal, hex, and octal. -- webb
7909      */
7910     case 'a':
7911 	do_ascii(NULL);
7912 	break;
7913 
7914 #ifdef FEAT_MBYTE
7915     /*
7916      * "g8": Display the bytes used for the UTF-8 character under the
7917      * cursor.	It is displayed in hex.
7918      * "8g8" finds illegal byte sequence.
7919      */
7920     case '8':
7921 	if (cap->count0 == 8)
7922 	    utf_find_illegal();
7923 	else
7924 	    show_utf8();
7925 	break;
7926 #endif
7927 
7928     case '<':
7929 	show_sb_text();
7930 	break;
7931 
7932     /*
7933      * "gg": Goto the first line in file.  With a count it goes to
7934      * that line number like for "G". -- webb
7935      */
7936     case 'g':
7937 	cap->arg = FALSE;
7938 	nv_goto(cap);
7939 	break;
7940 
7941     /*
7942      *	 Two-character operators:
7943      *	 "gq"	    Format text
7944      *	 "gw"	    Format text and keep cursor position
7945      *	 "g~"	    Toggle the case of the text.
7946      *	 "gu"	    Change text to lower case.
7947      *	 "gU"	    Change text to upper case.
7948      *   "g?"	    rot13 encoding
7949      *   "g@"	    call 'operatorfunc'
7950      */
7951     case 'q':
7952     case 'w':
7953 	oap->cursor_start = curwin->w_cursor;
7954 	/*FALLTHROUGH*/
7955     case '~':
7956     case 'u':
7957     case 'U':
7958     case '?':
7959     case '@':
7960 	nv_operator(cap);
7961 	break;
7962 
7963     /*
7964      * "gd": Find first occurence of pattern under the cursor in the
7965      *	 current function
7966      * "gD": idem, but in the current file.
7967      */
7968     case 'd':
7969     case 'D':
7970 	nv_gd(oap, cap->nchar, (int)cap->count0);
7971 	break;
7972 
7973 #ifdef FEAT_MOUSE
7974     /*
7975      * g<*Mouse> : <C-*mouse>
7976      */
7977     case K_MIDDLEMOUSE:
7978     case K_MIDDLEDRAG:
7979     case K_MIDDLERELEASE:
7980     case K_LEFTMOUSE:
7981     case K_LEFTDRAG:
7982     case K_LEFTRELEASE:
7983     case K_RIGHTMOUSE:
7984     case K_RIGHTDRAG:
7985     case K_RIGHTRELEASE:
7986     case K_X1MOUSE:
7987     case K_X1DRAG:
7988     case K_X1RELEASE:
7989     case K_X2MOUSE:
7990     case K_X2DRAG:
7991     case K_X2RELEASE:
7992 	mod_mask = MOD_MASK_CTRL;
7993 	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
7994 	break;
7995 #endif
7996 
7997     case K_IGNORE:
7998 	break;
7999 
8000     /*
8001      * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
8002      */
8003     case 'p':
8004     case 'P':
8005 	nv_put(cap);
8006 	break;
8007 
8008 #ifdef FEAT_BYTEOFF
8009     /* "go": goto byte count from start of buffer */
8010     case 'o':
8011 	goto_byte(cap->count0);
8012 	break;
8013 #endif
8014 
8015     /* "gQ": improved Ex mode */
8016     case 'Q':
8017 	if (text_locked())
8018 	{
8019 	    clearopbeep(cap->oap);
8020 	    text_locked_msg();
8021 	    break;
8022 	}
8023 
8024 	if (!checkclearopq(oap))
8025 	    do_exmode(TRUE);
8026 	break;
8027 
8028 #ifdef FEAT_JUMPLIST
8029     case ',':
8030 	nv_pcmark(cap);
8031 	break;
8032 
8033     case ';':
8034 	cap->count1 = -cap->count1;
8035 	nv_pcmark(cap);
8036 	break;
8037 #endif
8038 
8039 #ifdef FEAT_WINDOWS
8040     case 't':
8041 	goto_tabpage((int)cap->count0);
8042 	break;
8043     case 'T':
8044 	goto_tabpage(-(int)cap->count1);
8045 	break;
8046 #endif
8047 
8048     case '+':
8049     case '-': /* "g+" and "g-": undo or redo along the timeline */
8050 	if (!checkclearopq(oap))
8051 	    undo_time(cap->nchar == '-' ? -cap->count1 : cap->count1,
8052 								FALSE, FALSE);
8053 	break;
8054 
8055     default:
8056 	clearopbeep(oap);
8057 	break;
8058     }
8059 }
8060 
8061 /*
8062  * Handle "o" and "O" commands.
8063  */
8064     static void
8065 n_opencmd(cap)
8066     cmdarg_T	*cap;
8067 {
8068     if (!checkclearopq(cap->oap))
8069     {
8070 #ifdef FEAT_FOLDING
8071 	if (cap->cmdchar == 'O')
8072 	    /* Open above the first line of a folded sequence of lines */
8073 	    (void)hasFolding(curwin->w_cursor.lnum,
8074 						&curwin->w_cursor.lnum, NULL);
8075 	else
8076 	    /* Open below the last line of a folded sequence of lines */
8077 	    (void)hasFolding(curwin->w_cursor.lnum,
8078 						NULL, &curwin->w_cursor.lnum);
8079 #endif
8080 	if (u_save((linenr_T)(curwin->w_cursor.lnum -
8081 					       (cap->cmdchar == 'O' ? 1 : 0)),
8082 		   (linenr_T)(curwin->w_cursor.lnum +
8083 					       (cap->cmdchar == 'o' ? 1 : 0))
8084 		       ) == OK
8085 		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
8086 #ifdef FEAT_COMMENTS
8087 		    has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM :
8088 #endif
8089 		    0, 0))
8090 	{
8091 	    /* When '#' is in 'cpoptions' ignore the count. */
8092 	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
8093 		cap->count1 = 1;
8094 	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
8095 	}
8096     }
8097 }
8098 
8099 /*
8100  * "." command: redo last change.
8101  */
8102     static void
8103 nv_dot(cap)
8104     cmdarg_T	*cap;
8105 {
8106     if (!checkclearopq(cap->oap))
8107     {
8108 	/*
8109 	 * If "restart_edit" is TRUE, the last but one command is repeated
8110 	 * instead of the last command (inserting text). This is used for
8111 	 * CTRL-O <.> in insert mode.
8112 	 */
8113 	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
8114 	    clearopbeep(cap->oap);
8115     }
8116 }
8117 
8118 /*
8119  * CTRL-R: undo undo
8120  */
8121     static void
8122 nv_redo(cap)
8123     cmdarg_T	*cap;
8124 {
8125     if (!checkclearopq(cap->oap))
8126     {
8127 	u_redo((int)cap->count1);
8128 	curwin->w_set_curswant = TRUE;
8129     }
8130 }
8131 
8132 /*
8133  * Handle "U" command.
8134  */
8135     static void
8136 nv_Undo(cap)
8137     cmdarg_T	*cap;
8138 {
8139     /* In Visual mode and typing "gUU" triggers an operator */
8140     if (cap->oap->op_type == OP_UPPER
8141 #ifdef FEAT_VISUAL
8142 	    || VIsual_active
8143 #endif
8144 	    )
8145     {
8146 	/* translate "gUU" to "gUgU" */
8147 	cap->cmdchar = 'g';
8148 	cap->nchar = 'U';
8149 	nv_operator(cap);
8150     }
8151     else if (!checkclearopq(cap->oap))
8152     {
8153 	u_undoline();
8154 	curwin->w_set_curswant = TRUE;
8155     }
8156 }
8157 
8158 /*
8159  * '~' command: If tilde is not an operator and Visual is off: swap case of a
8160  * single character.
8161  */
8162     static void
8163 nv_tilde(cap)
8164     cmdarg_T	*cap;
8165 {
8166     if (!p_to
8167 #ifdef FEAT_VISUAL
8168 	    && !VIsual_active
8169 #endif
8170 	    && cap->oap->op_type != OP_TILDE)
8171 	n_swapchar(cap);
8172     else
8173 	nv_operator(cap);
8174 }
8175 
8176 /*
8177  * Handle an operator command.
8178  * The actual work is done by do_pending_operator().
8179  */
8180     static void
8181 nv_operator(cap)
8182     cmdarg_T	*cap;
8183 {
8184     int	    op_type;
8185 
8186     op_type = get_op_type(cap->cmdchar, cap->nchar);
8187 
8188     if (op_type == cap->oap->op_type)	    /* double operator works on lines */
8189 	nv_lineop(cap);
8190     else if (!checkclearop(cap->oap))
8191     {
8192 	cap->oap->start = curwin->w_cursor;
8193 	cap->oap->op_type = op_type;
8194     }
8195 }
8196 
8197 /*
8198  * Handle linewise operator "dd", "yy", etc.
8199  *
8200  * "_" is is a strange motion command that helps make operators more logical.
8201  * It is actually implemented, but not documented in the real Vi.  This motion
8202  * command actually refers to "the current line".  Commands like "dd" and "yy"
8203  * are really an alternate form of "d_" and "y_".  It does accept a count, so
8204  * "d3_" works to delete 3 lines.
8205  */
8206     static void
8207 nv_lineop(cap)
8208     cmdarg_T	*cap;
8209 {
8210     cap->oap->motion_type = MLINE;
8211     if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
8212 	clearopbeep(cap->oap);
8213     else if (  cap->oap->op_type == OP_DELETE
8214 	    || cap->oap->op_type == OP_LSHIFT
8215 	    || cap->oap->op_type == OP_RSHIFT)
8216 	beginline(BL_SOL | BL_FIX);
8217     else if (cap->oap->op_type != OP_YANK)	/* 'Y' does not move cursor */
8218 	beginline(BL_WHITE | BL_FIX);
8219 }
8220 
8221 /*
8222  * <Home> command.
8223  */
8224     static void
8225 nv_home(cap)
8226     cmdarg_T	*cap;
8227 {
8228     /* CTRL-HOME is like "gg" */
8229     if (mod_mask & MOD_MASK_CTRL)
8230 	nv_goto(cap);
8231     else
8232     {
8233 	cap->count0 = 1;
8234 	nv_pipe(cap);
8235     }
8236     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8237 			       one-character line). */
8238 }
8239 
8240 /*
8241  * "|" command.
8242  */
8243     static void
8244 nv_pipe(cap)
8245     cmdarg_T *cap;
8246 {
8247     cap->oap->motion_type = MCHAR;
8248     cap->oap->inclusive = FALSE;
8249     beginline(0);
8250     if (cap->count0 > 0)
8251     {
8252 	coladvance((colnr_T)(cap->count0 - 1));
8253 	curwin->w_curswant = (colnr_T)(cap->count0 - 1);
8254     }
8255     else
8256 	curwin->w_curswant = 0;
8257     /* keep curswant at the column where we wanted to go, not where
8258        we ended; differs if line is too short */
8259     curwin->w_set_curswant = FALSE;
8260 }
8261 
8262 /*
8263  * Handle back-word command "b" and "B".
8264  * cap->arg is 1 for "B"
8265  */
8266     static void
8267 nv_bck_word(cap)
8268     cmdarg_T	*cap;
8269 {
8270     cap->oap->motion_type = MCHAR;
8271     cap->oap->inclusive = FALSE;
8272     curwin->w_set_curswant = TRUE;
8273     if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
8274 	clearopbeep(cap->oap);
8275 #ifdef FEAT_FOLDING
8276     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8277 	foldOpenCursor();
8278 #endif
8279 }
8280 
8281 /*
8282  * Handle word motion commands "e", "E", "w" and "W".
8283  * cap->arg is TRUE for "E" and "W".
8284  */
8285     static void
8286 nv_wordcmd(cap)
8287     cmdarg_T	*cap;
8288 {
8289     int		n;
8290     int		word_end;
8291     int		flag = FALSE;
8292 
8293     /*
8294      * Set inclusive for the "E" and "e" command.
8295      */
8296     if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
8297 	word_end = TRUE;
8298     else
8299 	word_end = FALSE;
8300     cap->oap->inclusive = word_end;
8301 
8302     /*
8303      * "cw" and "cW" are a special case.
8304      */
8305     if (!word_end && cap->oap->op_type == OP_CHANGE)
8306     {
8307 	n = gchar_cursor();
8308 	if (n != NUL)			/* not an empty line */
8309 	{
8310 	    if (vim_iswhite(n))
8311 	    {
8312 		/*
8313 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
8314 		 * changes one character, not all blanks until the start of
8315 		 * the next word.  Only do this when the 'w' flag is included
8316 		 * in 'cpoptions'.
8317 		 */
8318 		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
8319 		{
8320 		    cap->oap->inclusive = TRUE;
8321 		    cap->oap->motion_type = MCHAR;
8322 		    return;
8323 		}
8324 	    }
8325 	    else
8326 	    {
8327 		/*
8328 		 * This is a little strange. To match what the real Vi does,
8329 		 * we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
8330 		 * that we are not on a space or a TAB.  This seems impolite
8331 		 * at first, but it's really more what we mean when we say
8332 		 * 'cw'.
8333 		 * Another strangeness: When standing on the end of a word
8334 		 * "ce" will change until the end of the next wordt, but "cw"
8335 		 * will change only one character! This is done by setting
8336 		 * flag.
8337 		 */
8338 		cap->oap->inclusive = TRUE;
8339 		word_end = TRUE;
8340 		flag = TRUE;
8341 	    }
8342 	}
8343     }
8344 
8345     cap->oap->motion_type = MCHAR;
8346     curwin->w_set_curswant = TRUE;
8347     if (word_end)
8348 	n = end_word(cap->count1, cap->arg, flag, FALSE);
8349     else
8350 	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
8351 
8352     /* Don't leave the cursor on the NUL past a line */
8353     if (curwin->w_cursor.col && gchar_cursor() == NUL)
8354     {
8355 	--curwin->w_cursor.col;
8356 	cap->oap->inclusive = TRUE;
8357     }
8358 
8359     if (n == FAIL && cap->oap->op_type == OP_NOP)
8360 	clearopbeep(cap->oap);
8361     else
8362     {
8363 #ifdef FEAT_VISUAL
8364 	adjust_for_sel(cap);
8365 #endif
8366 #ifdef FEAT_FOLDING
8367 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8368 	    foldOpenCursor();
8369 #endif
8370     }
8371 }
8372 
8373 /*
8374  * "0" and "^" commands.
8375  * cap->arg is the argument for beginline().
8376  */
8377     static void
8378 nv_beginline(cap)
8379     cmdarg_T	*cap;
8380 {
8381     cap->oap->motion_type = MCHAR;
8382     cap->oap->inclusive = FALSE;
8383     beginline(cap->arg);
8384 #ifdef FEAT_FOLDING
8385     if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8386 	foldOpenCursor();
8387 #endif
8388     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8389 			       one-character line). */
8390 }
8391 
8392 #ifdef FEAT_VISUAL
8393 /*
8394  * In exclusive Visual mode, may include the last character.
8395  */
8396     static void
8397 adjust_for_sel(cap)
8398     cmdarg_T	*cap;
8399 {
8400     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
8401 	    && gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor))
8402     {
8403 # ifdef FEAT_MBYTE
8404 	if (has_mbyte)
8405 	    inc_cursor();
8406 	else
8407 # endif
8408 	    ++curwin->w_cursor.col;
8409 	cap->oap->inclusive = FALSE;
8410     }
8411 }
8412 
8413 /*
8414  * Exclude last character at end of Visual area for 'selection' == "exclusive".
8415  * Should check VIsual_mode before calling this.
8416  * Returns TRUE when backed up to the previous line.
8417  */
8418     static int
8419 unadjust_for_sel()
8420 {
8421     pos_T	*pp;
8422 
8423     if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor))
8424     {
8425 	if (lt(VIsual, curwin->w_cursor))
8426 	    pp = &curwin->w_cursor;
8427 	else
8428 	    pp = &VIsual;
8429 #ifdef FEAT_VIRTUALEDIT
8430 	if (pp->coladd > 0)
8431 	    --pp->coladd;
8432 	else
8433 #endif
8434 	if (pp->col > 0)
8435 	{
8436 	    --pp->col;
8437 #ifdef FEAT_MBYTE
8438 	    mb_adjustpos(pp);
8439 #endif
8440 	}
8441 	else if (pp->lnum > 1)
8442 	{
8443 	    --pp->lnum;
8444 	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
8445 	    return TRUE;
8446 	}
8447     }
8448     return FALSE;
8449 }
8450 
8451 /*
8452  * SELECT key in Normal or Visual mode: end of Select mode mapping.
8453  */
8454     static void
8455 nv_select(cap)
8456     cmdarg_T	*cap;
8457 {
8458     if (VIsual_active)
8459 	VIsual_select = TRUE;
8460     else if (VIsual_reselect)
8461     {
8462 	cap->nchar = 'v';	    /* fake "gv" command */
8463 	cap->arg = TRUE;
8464 	nv_g_cmd(cap);
8465     }
8466 }
8467 
8468 #endif
8469 
8470 /*
8471  * "G", "gg", CTRL-END, CTRL-HOME.
8472  * cap->arg is TRUE for "G".
8473  */
8474     static void
8475 nv_goto(cap)
8476     cmdarg_T	*cap;
8477 {
8478     linenr_T	lnum;
8479 
8480     if (cap->arg)
8481 	lnum = curbuf->b_ml.ml_line_count;
8482     else
8483 	lnum = 1L;
8484     cap->oap->motion_type = MLINE;
8485     setpcmark();
8486 
8487     /* When a count is given, use it instead of the default lnum */
8488     if (cap->count0 != 0)
8489 	lnum = cap->count0;
8490     if (lnum < 1L)
8491 	lnum = 1L;
8492     else if (lnum > curbuf->b_ml.ml_line_count)
8493 	lnum = curbuf->b_ml.ml_line_count;
8494     curwin->w_cursor.lnum = lnum;
8495     beginline(BL_SOL | BL_FIX);
8496 #ifdef FEAT_FOLDING
8497     if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP)
8498 	foldOpenCursor();
8499 #endif
8500 }
8501 
8502 /*
8503  * CTRL-\ in Normal mode.
8504  */
8505     static void
8506 nv_normal(cap)
8507     cmdarg_T	*cap;
8508 {
8509     if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G)
8510     {
8511 	clearop(cap->oap);
8512 	if (restart_edit != 0 && mode_displayed)
8513 	    clear_cmdline = TRUE;		/* unshow mode later */
8514 	restart_edit = 0;
8515 #ifdef FEAT_CMDWIN
8516 	if (cmdwin_type != 0)
8517 	    cmdwin_result = Ctrl_C;
8518 #endif
8519 #ifdef FEAT_VISUAL
8520 	if (VIsual_active)
8521 	{
8522 	    end_visual_mode();		/* stop Visual */
8523 	    redraw_curbuf_later(INVERTED);
8524 	}
8525 #endif
8526 	/* CTRL-\ CTRL-G restarts Insert mode when 'insertmode' is set. */
8527 	if (cap->nchar == Ctrl_G && p_im)
8528 	    restart_edit = 'a';
8529     }
8530     else
8531 	clearopbeep(cap->oap);
8532 }
8533 
8534 /*
8535  * ESC in Normal mode: beep, but don't flush buffers.
8536  * Don't even beep if we are canceling a command.
8537  */
8538     static void
8539 nv_esc(cap)
8540     cmdarg_T	*cap;
8541 {
8542     int		no_reason;
8543 
8544     no_reason = (cap->oap->op_type == OP_NOP
8545 		&& cap->opcount == 0
8546 		&& cap->count0 == 0
8547 		&& cap->oap->regname == 0
8548 		&& !p_im);
8549 
8550     if (cap->arg)		/* TRUE for CTRL-C */
8551     {
8552 	if (restart_edit == 0
8553 #ifdef FEAT_CMDWIN
8554 		&& cmdwin_type == 0
8555 #endif
8556 #ifdef FEAT_VISUAL
8557 		&& !VIsual_active
8558 #endif
8559 		&& no_reason)
8560 	    MSG(_("Type  :quit<Enter>  to exit Vim"));
8561 
8562 	/* Don't reset "restart_edit" when 'insertmode' is set, it won't be
8563 	 * set again below when halfway a mapping. */
8564 	if (!p_im)
8565 	    restart_edit = 0;
8566 #ifdef FEAT_CMDWIN
8567 	if (cmdwin_type != 0)
8568 	{
8569 	    cmdwin_result = K_IGNORE;
8570 	    got_int = FALSE;	/* don't stop executing autocommands et al. */
8571 	    return;
8572 	}
8573 #endif
8574     }
8575 
8576 #ifdef FEAT_VISUAL
8577     if (VIsual_active)
8578     {
8579 	end_visual_mode();	/* stop Visual */
8580 	check_cursor_col();	/* make sure cursor is not beyond EOL */
8581 	curwin->w_set_curswant = TRUE;
8582 	redraw_curbuf_later(INVERTED);
8583     }
8584     else
8585 #endif
8586 	if (no_reason)
8587 	    vim_beep();
8588     clearop(cap->oap);
8589 
8590     /* A CTRL-C is often used at the start of a menu.  When 'insertmode' is
8591      * set return to Insert mode afterwards. */
8592     if (restart_edit == 0 && goto_im()
8593 #ifdef FEAT_EX_EXTRA
8594 	    && ex_normal_busy == 0
8595 #endif
8596 	    )
8597 	restart_edit = 'a';
8598 }
8599 
8600 /*
8601  * Handle "A", "a", "I", "i" and <Insert> commands.
8602  */
8603     static void
8604 nv_edit(cap)
8605     cmdarg_T *cap;
8606 {
8607     /* <Insert> is equal to "i" */
8608     if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
8609 	cap->cmdchar = 'i';
8610 
8611 #ifdef FEAT_VISUAL
8612     /* in Visual mode "A" and "I" are an operator */
8613     if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
8614 	v_visop(cap);
8615 
8616     /* in Visual mode and after an operator "a" and "i" are for text objects */
8617     else
8618 #endif
8619 	if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
8620 	    && (cap->oap->op_type != OP_NOP
8621 #ifdef FEAT_VISUAL
8622 		|| VIsual_active
8623 #endif
8624 		))
8625     {
8626 #ifdef FEAT_TEXTOBJ
8627 	nv_object(cap);
8628 #else
8629 	clearopbeep(cap->oap);
8630 #endif
8631     }
8632     else if (!curbuf->b_p_ma && !p_im)
8633     {
8634 	/* Only give this error when 'insertmode' is off. */
8635 	EMSG(_(e_modifiable));
8636 	clearop(cap->oap);
8637     }
8638     else if (!checkclearopq(cap->oap))
8639     {
8640 	switch (cap->cmdchar)
8641 	{
8642 	    case 'A':	/* "A"ppend after the line */
8643 		curwin->w_set_curswant = TRUE;
8644 #ifdef FEAT_VIRTUALEDIT
8645 		if (ve_flags == VE_ALL)
8646 		{
8647 		    int save_State = State;
8648 
8649 		    /* Pretent Insert mode here to allow the cursor on the
8650 		     * character past the end of the line */
8651 		    State = INSERT;
8652 		    coladvance((colnr_T)MAXCOL);
8653 		    State = save_State;
8654 		}
8655 		else
8656 #endif
8657 		    curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
8658 		break;
8659 
8660 	    case 'I':	/* "I"nsert before the first non-blank */
8661 		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
8662 		    beginline(BL_WHITE);
8663 		else
8664 		    beginline(BL_WHITE|BL_FIX);
8665 		break;
8666 
8667 	    case 'a':	/* "a"ppend is like "i"nsert on the next character. */
8668 #ifdef FEAT_VIRTUALEDIT
8669 		/* increment coladd when in virtual space, increment the
8670 		 * column otherwise, also to append after an unprintable char */
8671 		if (virtual_active()
8672 			&& (curwin->w_cursor.coladd > 0
8673 			    || *ml_get_cursor() == NUL
8674 			    || *ml_get_cursor() == TAB))
8675 		    curwin->w_cursor.coladd++;
8676 		else
8677 #endif
8678 		if (*ml_get_cursor() != NUL)
8679 		    inc_cursor();
8680 		break;
8681 	}
8682 
8683 #ifdef FEAT_VIRTUALEDIT
8684 	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
8685 	{
8686 	    int save_State = State;
8687 
8688 	    /* Pretent Insert mode here to allow the cursor on the
8689 	     * character past the end of the line */
8690 	    State = INSERT;
8691 	    coladvance(getviscol());
8692 	    State = save_State;
8693 	}
8694 #endif
8695 
8696 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
8697     }
8698 }
8699 
8700 /*
8701  * Invoke edit() and take care of "restart_edit" and the return value.
8702  */
8703     static void
8704 invoke_edit(cap, repl, cmd, startln)
8705     cmdarg_T	*cap;
8706     int		repl;		/* "r" or "gr" command */
8707     int		cmd;
8708     int		startln;
8709 {
8710     int		restart_edit_save = 0;
8711 
8712     /* Complicated: When the user types "a<C-O>a" we don't want to do Insert
8713      * mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
8714      * it. */
8715     if (repl || !stuff_empty())
8716 	restart_edit_save = restart_edit;
8717     else
8718 	restart_edit_save = 0;
8719 
8720     /* Always reset "restart_edit", this is not a restarted edit. */
8721     restart_edit = 0;
8722 
8723     if (edit(cmd, startln, cap->count1))
8724 	cap->retval |= CA_COMMAND_BUSY;
8725 
8726     if (restart_edit == 0)
8727 	restart_edit = restart_edit_save;
8728 }
8729 
8730 #ifdef FEAT_TEXTOBJ
8731 /*
8732  * "a" or "i" while an operator is pending or in Visual mode: object motion.
8733  */
8734     static void
8735 nv_object(cap)
8736     cmdarg_T	*cap;
8737 {
8738     int		flag;
8739     int		include;
8740     char_u	*mps_save;
8741 
8742     if (cap->cmdchar == 'i')
8743 	include = FALSE;    /* "ix" = inner object: exclude white space */
8744     else
8745 	include = TRUE;	    /* "ax" = an object: include white space */
8746 
8747     /* Make sure (), [], {} and <> are in 'matchpairs' */
8748     mps_save = curbuf->b_p_mps;
8749     curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";
8750 
8751     switch (cap->nchar)
8752     {
8753 	case 'w': /* "aw" = a word */
8754 		flag = current_word(cap->oap, cap->count1, include, FALSE);
8755 		break;
8756 	case 'W': /* "aW" = a WORD */
8757 		flag = current_word(cap->oap, cap->count1, include, TRUE);
8758 		break;
8759 	case 'b': /* "ab" = a braces block */
8760 	case '(':
8761 	case ')':
8762 		flag = current_block(cap->oap, cap->count1, include, '(', ')');
8763 		break;
8764 	case 'B': /* "aB" = a Brackets block */
8765 	case '{':
8766 	case '}':
8767 		flag = current_block(cap->oap, cap->count1, include, '{', '}');
8768 		break;
8769 	case '[': /* "a[" = a [] block */
8770 	case ']':
8771 		flag = current_block(cap->oap, cap->count1, include, '[', ']');
8772 		break;
8773 	case '<': /* "a<" = a <> block */
8774 	case '>':
8775 		flag = current_block(cap->oap, cap->count1, include, '<', '>');
8776 		break;
8777 	case 't': /* "at" = a tag block (xml and html) */
8778 		flag = current_tagblock(cap->oap, cap->count1, include);
8779 		break;
8780 	case 'p': /* "ap" = a paragraph */
8781 		flag = current_par(cap->oap, cap->count1, include, 'p');
8782 		break;
8783 	case 's': /* "as" = a sentence */
8784 		flag = current_sent(cap->oap, cap->count1, include);
8785 		break;
8786 	case '"': /* "a"" = a double quoted string */
8787 	case '\'': /* "a'" = a single quoted string */
8788 	case '`': /* "a`" = a backtick quoted string */
8789 		flag = current_quote(cap->oap, cap->count1, include,
8790 								  cap->nchar);
8791 		break;
8792 #if 0	/* TODO */
8793 	case 'S': /* "aS" = a section */
8794 	case 'f': /* "af" = a filename */
8795 	case 'u': /* "au" = a URL */
8796 #endif
8797 	default:
8798 		flag = FAIL;
8799 		break;
8800     }
8801 
8802     curbuf->b_p_mps = mps_save;
8803     if (flag == FAIL)
8804 	clearopbeep(cap->oap);
8805     adjust_cursor_col();
8806     curwin->w_set_curswant = TRUE;
8807 }
8808 #endif
8809 
8810 /*
8811  * "q" command: Start/stop recording.
8812  * "q:", "q/", "q?": edit command-line in command-line window.
8813  */
8814     static void
8815 nv_record(cap)
8816     cmdarg_T	*cap;
8817 {
8818     if (cap->oap->op_type == OP_FORMAT)
8819     {
8820 	/* "gqq" is the same as "gqgq": format line */
8821 	cap->cmdchar = 'g';
8822 	cap->nchar = 'q';
8823 	nv_operator(cap);
8824     }
8825     else if (!checkclearop(cap->oap))
8826     {
8827 #ifdef FEAT_CMDWIN
8828 	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
8829 	{
8830 	    stuffcharReadbuff(cap->nchar);
8831 	    stuffcharReadbuff(K_CMDWIN);
8832 	}
8833 	else
8834 #endif
8835 	    /* (stop) recording into a named register, unless executing a
8836 	     * register */
8837 	    if (!Exec_reg && do_record(cap->nchar) == FAIL)
8838 		clearopbeep(cap->oap);
8839     }
8840 }
8841 
8842 /*
8843  * Handle the "@r" command.
8844  */
8845     static void
8846 nv_at(cap)
8847     cmdarg_T	*cap;
8848 {
8849     if (checkclearop(cap->oap))
8850 	return;
8851 #ifdef FEAT_EVAL
8852     if (cap->nchar == '=')
8853     {
8854 	if (get_expr_register() == NUL)
8855 	    return;
8856     }
8857 #endif
8858     while (cap->count1-- && !got_int)
8859     {
8860 	if (do_execreg(cap->nchar, FALSE, FALSE) == FAIL)
8861 	{
8862 	    clearopbeep(cap->oap);
8863 	    break;
8864 	}
8865 	line_breakcheck();
8866     }
8867 }
8868 
8869 /*
8870  * Handle the CTRL-U and CTRL-D commands.
8871  */
8872     static void
8873 nv_halfpage(cap)
8874     cmdarg_T	*cap;
8875 {
8876     if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
8877 	    || (cap->cmdchar == Ctrl_D
8878 		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
8879 	clearopbeep(cap->oap);
8880     else if (!checkclearop(cap->oap))
8881 	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
8882 }
8883 
8884 /*
8885  * Handle "J" or "gJ" command.
8886  */
8887     static void
8888 nv_join(cap)
8889     cmdarg_T *cap;
8890 {
8891 #ifdef FEAT_VISUAL
8892     if (VIsual_active)	/* join the visual lines */
8893 	nv_operator(cap);
8894     else
8895 #endif
8896 	if (!checkclearop(cap->oap))
8897     {
8898 	if (cap->count0 <= 1)
8899 	    cap->count0 = 2;	    /* default for join is two lines! */
8900 	if (curwin->w_cursor.lnum + cap->count0 - 1 >
8901 						   curbuf->b_ml.ml_line_count)
8902 	    clearopbeep(cap->oap);  /* beyond last line */
8903 	else
8904 	{
8905 	    prep_redo(cap->oap->regname, cap->count0,
8906 			 NUL, cap->cmdchar, NUL, NUL, cap->nchar);
8907 	    do_do_join(cap->count0, cap->nchar == NUL);
8908 	}
8909     }
8910 }
8911 
8912 /*
8913  * "P", "gP", "p" and "gp" commands.
8914  */
8915     static void
8916 nv_put(cap)
8917     cmdarg_T  *cap;
8918 {
8919 #ifdef FEAT_VISUAL
8920     int		regname = 0;
8921     void	*reg1 = NULL, *reg2 = NULL;
8922     int		empty = FALSE;
8923     int		was_visual = FALSE;
8924 #endif
8925     int		dir;
8926     int		flags = 0;
8927 
8928     if (cap->oap->op_type != OP_NOP)
8929     {
8930 #ifdef FEAT_DIFF
8931 	/* "dp" is ":diffput" */
8932 	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
8933 	{
8934 	    clearop(cap->oap);
8935 	    nv_diffgetput(TRUE);
8936 	}
8937 	else
8938 #endif
8939 	clearopbeep(cap->oap);
8940     }
8941     else
8942     {
8943 	dir = (cap->cmdchar == 'P'
8944 		|| (cap->cmdchar == 'g' && cap->nchar == 'P'))
8945 							 ? BACKWARD : FORWARD;
8946 	prep_redo_cmd(cap);
8947 	if (cap->cmdchar == 'g')
8948 	    flags |= PUT_CURSEND;
8949 
8950 #ifdef FEAT_VISUAL
8951 	if (VIsual_active)
8952 	{
8953 	    /* Putting in Visual mode: The put text replaces the selected
8954 	     * text.  First delete the selected text, then put the new text.
8955 	     * Need to save and restore the registers that the delete
8956 	     * overwrites if the old contents is being put.
8957 	     */
8958 	    was_visual = TRUE;
8959 	    regname = cap->oap->regname;
8960 # ifdef FEAT_CLIPBOARD
8961 	    adjust_clip_reg(&regname);
8962 # endif
8963 	    if (regname == 0 || VIM_ISDIGIT(regname)
8964 # ifdef FEAT_CLIPBOARD
8965 		    || (clip_unnamed && (regname == '*' || regname == '+'))
8966 # endif
8967 
8968 		    )
8969 	    {
8970 		/* the delete is going to overwrite the register we want to
8971 		 * put, save it first. */
8972 		reg1 = get_register(regname, TRUE);
8973 	    }
8974 
8975 	    /* Now delete the selected text. */
8976 	    cap->cmdchar = 'd';
8977 	    cap->nchar = NUL;
8978 	    cap->oap->regname = NUL;
8979 	    nv_operator(cap);
8980 	    do_pending_operator(cap, 0, FALSE);
8981 	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
8982 
8983 	    /* delete PUT_LINE_BACKWARD; */
8984 	    cap->oap->regname = regname;
8985 
8986 	    if (reg1 != NULL)
8987 	    {
8988 		/* Delete probably changed the register we want to put, save
8989 		 * it first. Then put back what was there before the delete. */
8990 		reg2 = get_register(regname, FALSE);
8991 		put_register(regname, reg1);
8992 	    }
8993 
8994 	    /* When deleted a linewise Visual area, put the register as
8995 	     * lines to avoid it joined with the next line.  When deletion was
8996 	     * characterwise, split a line when putting lines. */
8997 	    if (VIsual_mode == 'V')
8998 		flags |= PUT_LINE;
8999 	    else if (VIsual_mode == 'v')
9000 		flags |= PUT_LINE_SPLIT;
9001 	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
9002 		flags |= PUT_LINE_FORWARD;
9003 	    dir = BACKWARD;
9004 	    if ((VIsual_mode != 'V'
9005 			&& curwin->w_cursor.col < curbuf->b_op_start.col)
9006 		    || (VIsual_mode == 'V'
9007 			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
9008 		/* cursor is at the end of the line or end of file, put
9009 		 * forward. */
9010 		dir = FORWARD;
9011 	}
9012 #endif
9013 	do_put(cap->oap->regname, dir, cap->count1, flags);
9014 
9015 #ifdef FEAT_VISUAL
9016 	/* If a register was saved, put it back now. */
9017 	if (reg2 != NULL)
9018 	    put_register(regname, reg2);
9019 
9020 	/* What to reselect with "gv"?  Selecting the just put text seems to
9021 	 * be the most useful, since the original text was removed. */
9022 	if (was_visual)
9023 	{
9024 	    curbuf->b_visual.vi_start = curbuf->b_op_start;
9025 	    curbuf->b_visual.vi_end = curbuf->b_op_end;
9026 	}
9027 
9028 	/* When all lines were selected and deleted do_put() leaves an empty
9029 	 * line that needs to be deleted now. */
9030 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
9031 	{
9032 	    ml_delete(curbuf->b_ml.ml_line_count, TRUE);
9033 
9034 	    /* If the cursor was in that line, move it to the end of the last
9035 	     * line. */
9036 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
9037 	    {
9038 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
9039 		coladvance((colnr_T)MAXCOL);
9040 	    }
9041 	}
9042 #endif
9043 	auto_format(FALSE, TRUE);
9044     }
9045 }
9046 
9047 /*
9048  * "o" and "O" commands.
9049  */
9050     static void
9051 nv_open(cap)
9052     cmdarg_T	*cap;
9053 {
9054 #ifdef FEAT_DIFF
9055     /* "do" is ":diffget" */
9056     if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
9057     {
9058 	clearop(cap->oap);
9059 	nv_diffgetput(FALSE);
9060     }
9061     else
9062 #endif
9063 #ifdef FEAT_VISUAL
9064     if (VIsual_active)  /* switch start and end of visual */
9065 	v_swap_corners(cap->cmdchar);
9066     else
9067 #endif
9068 	n_opencmd(cap);
9069 }
9070 
9071 #ifdef FEAT_SNIFF
9072 /*ARGSUSED*/
9073     static void
9074 nv_sniff(cap)
9075     cmdarg_T	*cap;
9076 {
9077     ProcessSniffRequests();
9078 }
9079 #endif
9080 
9081 #ifdef FEAT_NETBEANS_INTG
9082     static void
9083 nv_nbcmd(cap)
9084     cmdarg_T	*cap;
9085 {
9086     netbeans_keycommand(cap->nchar);
9087 }
9088 #endif
9089 
9090 #ifdef FEAT_DND
9091 /*ARGSUSED*/
9092     static void
9093 nv_drop(cap)
9094     cmdarg_T	*cap;
9095 {
9096     do_put('~', BACKWARD, 1L, PUT_CURSEND);
9097 }
9098 #endif
9099 
9100 #ifdef FEAT_AUTOCMD
9101 /*
9102  * Trigger CursorHold event.
9103  * When waiting for a character for 'updatetime' K_CURSORHOLD is put in the
9104  * input buffer.  "did_cursorhold" is set to avoid retriggering.
9105  */
9106 /*ARGSUSED*/
9107     static void
9108 nv_cursorhold(cap)
9109     cmdarg_T	*cap;
9110 {
9111     apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
9112     did_cursorhold = TRUE;
9113     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
9114 }
9115 #endif
9116