xref: /vim-8.2.3635/src/normal.c (revision e2db6c97)
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 /*
18  * The Visual area is remembered for reselection.
19  */
20 static int	resel_VIsual_mode = NUL;	/* 'v', 'V', or Ctrl-V */
21 static linenr_T	resel_VIsual_line_count;	/* number of lines */
22 static colnr_T	resel_VIsual_vcol;		/* nr of cols or end col */
23 static int	VIsual_mode_orig = NUL;		/* saved Visual mode */
24 
25 static int	restart_VIsual_select = 0;
26 
27 #ifdef FEAT_EVAL
28 static void	set_vcount_ca __ARGS((cmdarg_T *cap, int *set_prevcount));
29 #endif
30 static int
31 #ifdef __BORLANDC__
32     _RTLENTRYF
33 #endif
34 		nv_compare __ARGS((const void *s1, const void *s2));
35 static int	find_command __ARGS((int cmdchar));
36 static void	op_colon __ARGS((oparg_T *oap));
37 static void	op_function __ARGS((oparg_T *oap));
38 #if defined(FEAT_MOUSE)
39 static void	find_start_of_word __ARGS((pos_T *));
40 static void	find_end_of_word __ARGS((pos_T *));
41 static int	get_mouse_class __ARGS((char_u *p));
42 #endif
43 static void	prep_redo_cmd __ARGS((cmdarg_T *cap));
44 static void	prep_redo __ARGS((int regname, long, int, int, int, int, int));
45 static int	checkclearop __ARGS((oparg_T *oap));
46 static int	checkclearopq __ARGS((oparg_T *oap));
47 static void	clearop __ARGS((oparg_T *oap));
48 static void	clearopbeep __ARGS((oparg_T *oap));
49 static void	unshift_special __ARGS((cmdarg_T *cap));
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 int	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 static void	v_swap_corners __ARGS((int cmdchar));
117 static void	nv_replace __ARGS((cmdarg_T *cap));
118 static void	n_swapchar __ARGS((cmdarg_T *cap));
119 static void	nv_cursormark __ARGS((cmdarg_T *cap, int flag, pos_T *pos));
120 static void	v_visop __ARGS((cmdarg_T *cap));
121 static void	nv_subst __ARGS((cmdarg_T *cap));
122 static void	nv_abbrev __ARGS((cmdarg_T *cap));
123 static void	nv_optrans __ARGS((cmdarg_T *cap));
124 static void	nv_gomark __ARGS((cmdarg_T *cap));
125 static void	nv_pcmark __ARGS((cmdarg_T *cap));
126 static void	nv_regname __ARGS((cmdarg_T *cap));
127 static void	nv_visual __ARGS((cmdarg_T *cap));
128 static void	n_start_visual_mode __ARGS((int c));
129 static void	nv_window __ARGS((cmdarg_T *cap));
130 static void	nv_suspend __ARGS((cmdarg_T *cap));
131 static void	nv_g_cmd __ARGS((cmdarg_T *cap));
132 static void	n_opencmd __ARGS((cmdarg_T *cap));
133 static void	nv_dot __ARGS((cmdarg_T *cap));
134 static void	nv_redo __ARGS((cmdarg_T *cap));
135 static void	nv_Undo __ARGS((cmdarg_T *cap));
136 static void	nv_tilde __ARGS((cmdarg_T *cap));
137 static void	nv_operator __ARGS((cmdarg_T *cap));
138 #ifdef FEAT_EVAL
139 static void	set_op_var __ARGS((int optype));
140 #endif
141 static void	nv_lineop __ARGS((cmdarg_T *cap));
142 static void	nv_home __ARGS((cmdarg_T *cap));
143 static void	nv_pipe __ARGS((cmdarg_T *cap));
144 static void	nv_bck_word __ARGS((cmdarg_T *cap));
145 static void	nv_wordcmd __ARGS((cmdarg_T *cap));
146 static void	nv_beginline __ARGS((cmdarg_T *cap));
147 static void	adjust_cursor __ARGS((oparg_T *oap));
148 static void	adjust_for_sel __ARGS((cmdarg_T *cap));
149 static int	unadjust_for_sel __ARGS((void));
150 static void	nv_select __ARGS((cmdarg_T *cap));
151 static void	nv_goto __ARGS((cmdarg_T *cap));
152 static void	nv_normal __ARGS((cmdarg_T *cap));
153 static void	nv_esc __ARGS((cmdarg_T *oap));
154 static void	nv_edit __ARGS((cmdarg_T *cap));
155 static void	invoke_edit __ARGS((cmdarg_T *cap, int repl, int cmd, int startln));
156 #ifdef FEAT_TEXTOBJ
157 static void	nv_object __ARGS((cmdarg_T *cap));
158 #endif
159 static void	nv_record __ARGS((cmdarg_T *cap));
160 static void	nv_at __ARGS((cmdarg_T *cap));
161 static void	nv_halfpage __ARGS((cmdarg_T *cap));
162 static void	nv_join __ARGS((cmdarg_T *cap));
163 static void	nv_put __ARGS((cmdarg_T *cap));
164 static void	nv_open __ARGS((cmdarg_T *cap));
165 #ifdef FEAT_SNIFF
166 static void	nv_sniff __ARGS((cmdarg_T *cap));
167 #endif
168 #ifdef FEAT_NETBEANS_INTG
169 static void	nv_nbcmd __ARGS((cmdarg_T *cap));
170 #endif
171 #ifdef FEAT_DND
172 static void	nv_drop __ARGS((cmdarg_T *cap));
173 #endif
174 #ifdef FEAT_AUTOCMD
175 static void	nv_cursorhold __ARGS((cmdarg_T *cap));
176 #endif
177 
178 static char *e_noident = N_("E349: No identifier under cursor");
179 
180 /*
181  * Function to be called for a Normal or Visual mode command.
182  * The argument is a cmdarg_T.
183  */
184 typedef void (*nv_func_T) __ARGS((cmdarg_T *cap));
185 
186 /* Values for cmd_flags. */
187 #define NV_NCH	    0x01	  /* may need to get a second char */
188 #define NV_NCH_NOP  (0x02|NV_NCH) /* get second char when no operator pending */
189 #define NV_NCH_ALW  (0x04|NV_NCH) /* always get a second char */
190 #define NV_LANG	    0x08	/* second char needs language adjustment */
191 
192 #define NV_SS	    0x10	/* may start selection */
193 #define NV_SSS	    0x20	/* may start selection with shift modifier */
194 #define NV_STS	    0x40	/* may stop selection without shift modif. */
195 #define NV_RL	    0x80	/* 'rightleft' modifies command */
196 #define NV_KEEPREG  0x100	/* don't clear regname */
197 #define NV_NCW	    0x200	/* not allowed in command-line window */
198 
199 /*
200  * Generally speaking, every Normal mode command should either clear any
201  * pending operator (with *clearop*()), or set the motion type variable
202  * oap->motion_type.
203  *
204  * When a cursor motion command is made, it is marked as being a character or
205  * line oriented motion.  Then, if an operator is in effect, the operation
206  * becomes character or line oriented accordingly.
207  */
208 
209 /*
210  * This table contains one entry for every Normal or Visual mode command.
211  * The order doesn't matter, init_normal_cmds() will create a sorted index.
212  * It is faster when all keys from zero to '~' are present.
213  */
214 static const struct nv_cmd
215 {
216     int		cmd_char;	/* (first) command character */
217     nv_func_T   cmd_func;	/* function for this command */
218     short_u	cmd_flags;	/* NV_ flags */
219     short	cmd_arg;	/* value for ca.arg */
220 } nv_cmds[] =
221 {
222     {NUL,	nv_error,	0,			0},
223     {Ctrl_A,	nv_addsub,	0,			0},
224     {Ctrl_B,	nv_page,	NV_STS,			BACKWARD},
225     {Ctrl_C,	nv_esc,		0,			TRUE},
226     {Ctrl_D,	nv_halfpage,	0,			0},
227     {Ctrl_E,	nv_scroll_line,	0,			TRUE},
228     {Ctrl_F,	nv_page,	NV_STS,			FORWARD},
229     {Ctrl_G,	nv_ctrlg,	0,			0},
230     {Ctrl_H,	nv_ctrlh,	0,			0},
231     {Ctrl_I,	nv_pcmark,	0,			0},
232     {NL,	nv_down,	0,			FALSE},
233     {Ctrl_K,	nv_error,	0,			0},
234     {Ctrl_L,	nv_clear,	0,			0},
235     {Ctrl_M,	nv_down,	0,			TRUE},
236     {Ctrl_N,	nv_down,	NV_STS,			FALSE},
237     {Ctrl_O,	nv_ctrlo,	0,			0},
238     {Ctrl_P,	nv_up,		NV_STS,			FALSE},
239     {Ctrl_Q,	nv_visual,	0,			FALSE},
240     {Ctrl_R,	nv_redo,	0,			0},
241     {Ctrl_S,	nv_ignore,	0,			0},
242     {Ctrl_T,	nv_tagpop,	NV_NCW,			0},
243     {Ctrl_U,	nv_halfpage,	0,			0},
244     {Ctrl_V,	nv_visual,	0,			FALSE},
245     {'V',	nv_visual,	0,			FALSE},
246     {'v',	nv_visual,	0,			FALSE},
247     {Ctrl_W,	nv_window,	0,			0},
248     {Ctrl_X,	nv_addsub,	0,			0},
249     {Ctrl_Y,	nv_scroll_line,	0,			FALSE},
250     {Ctrl_Z,	nv_suspend,	0,			0},
251     {ESC,	nv_esc,		0,			FALSE},
252     {Ctrl_BSL,	nv_normal,	NV_NCH_ALW,		0},
253     {Ctrl_RSB,	nv_ident,	NV_NCW,			0},
254     {Ctrl_HAT,	nv_hat,		NV_NCW,			0},
255     {Ctrl__,	nv_error,	0,			0},
256     {' ',	nv_right,	0,			0},
257     {'!',	nv_operator,	0,			0},
258     {'"',	nv_regname,	NV_NCH_NOP|NV_KEEPREG,	0},
259     {'#',	nv_ident,	0,			0},
260     {'$',	nv_dollar,	0,			0},
261     {'%',	nv_percent,	0,			0},
262     {'&',	nv_optrans,	0,			0},
263     {'\'',	nv_gomark,	NV_NCH_ALW,		TRUE},
264     {'(',	nv_brace,	0,			BACKWARD},
265     {')',	nv_brace,	0,			FORWARD},
266     {'*',	nv_ident,	0,			0},
267     {'+',	nv_down,	0,			TRUE},
268     {',',	nv_csearch,	0,			TRUE},
269     {'-',	nv_up,		0,			TRUE},
270     {'.',	nv_dot,		NV_KEEPREG,		0},
271     {'/',	nv_search,	0,			FALSE},
272     {'0',	nv_beginline,	0,			0},
273     {'1',	nv_ignore,	0,			0},
274     {'2',	nv_ignore,	0,			0},
275     {'3',	nv_ignore,	0,			0},
276     {'4',	nv_ignore,	0,			0},
277     {'5',	nv_ignore,	0,			0},
278     {'6',	nv_ignore,	0,			0},
279     {'7',	nv_ignore,	0,			0},
280     {'8',	nv_ignore,	0,			0},
281     {'9',	nv_ignore,	0,			0},
282     {':',	nv_colon,	0,			0},
283     {';',	nv_csearch,	0,			FALSE},
284     {'<',	nv_operator,	NV_RL,			0},
285     {'=',	nv_operator,	0,			0},
286     {'>',	nv_operator,	NV_RL,			0},
287     {'?',	nv_search,	0,			FALSE},
288     {'@',	nv_at,		NV_NCH_NOP,		FALSE},
289     {'A',	nv_edit,	0,			0},
290     {'B',	nv_bck_word,	0,			1},
291     {'C',	nv_abbrev,	NV_KEEPREG,		0},
292     {'D',	nv_abbrev,	NV_KEEPREG,		0},
293     {'E',	nv_wordcmd,	0,			TRUE},
294     {'F',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
295     {'G',	nv_goto,	0,			TRUE},
296     {'H',	nv_scroll,	0,			0},
297     {'I',	nv_edit,	0,			0},
298     {'J',	nv_join,	0,			0},
299     {'K',	nv_ident,	0,			0},
300     {'L',	nv_scroll,	0,			0},
301     {'M',	nv_scroll,	0,			0},
302     {'N',	nv_next,	0,			SEARCH_REV},
303     {'O',	nv_open,	0,			0},
304     {'P',	nv_put,		0,			0},
305     {'Q',	nv_exmode,	NV_NCW,			0},
306     {'R',	nv_Replace,	0,			FALSE},
307     {'S',	nv_subst,	NV_KEEPREG,		0},
308     {'T',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
309     {'U',	nv_Undo,	0,			0},
310     {'W',	nv_wordcmd,	0,			TRUE},
311     {'X',	nv_abbrev,	NV_KEEPREG,		0},
312     {'Y',	nv_abbrev,	NV_KEEPREG,		0},
313     {'Z',	nv_Zet,		NV_NCH_NOP|NV_NCW,	0},
314     {'[',	nv_brackets,	NV_NCH_ALW,		BACKWARD},
315     {'\\',	nv_error,	0,			0},
316     {']',	nv_brackets,	NV_NCH_ALW,		FORWARD},
317     {'^',	nv_beginline,	0,			BL_WHITE | BL_FIX},
318     {'_',	nv_lineop,	0,			0},
319     {'`',	nv_gomark,	NV_NCH_ALW,		FALSE},
320     {'a',	nv_edit,	NV_NCH,			0},
321     {'b',	nv_bck_word,	0,			0},
322     {'c',	nv_operator,	0,			0},
323     {'d',	nv_operator,	0,			0},
324     {'e',	nv_wordcmd,	0,			FALSE},
325     {'f',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
326     {'g',	nv_g_cmd,	NV_NCH_ALW,		FALSE},
327     {'h',	nv_left,	NV_RL,			0},
328     {'i',	nv_edit,	NV_NCH,			0},
329     {'j',	nv_down,	0,			FALSE},
330     {'k',	nv_up,		0,			FALSE},
331     {'l',	nv_right,	NV_RL,			0},
332     {'m',	nv_mark,	NV_NCH_NOP,		0},
333     {'n',	nv_next,	0,			0},
334     {'o',	nv_open,	0,			0},
335     {'p',	nv_put,		0,			0},
336     {'q',	nv_record,	NV_NCH,			0},
337     {'r',	nv_replace,	NV_NCH_NOP|NV_LANG,	0},
338     {'s',	nv_subst,	NV_KEEPREG,		0},
339     {'t',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
340     {'u',	nv_undo,	0,			0},
341     {'w',	nv_wordcmd,	0,			FALSE},
342     {'x',	nv_abbrev,	NV_KEEPREG,		0},
343     {'y',	nv_operator,	0,			0},
344     {'z',	nv_zet,		NV_NCH_ALW,		0},
345     {'{',	nv_findpar,	0,			BACKWARD},
346     {'|',	nv_pipe,	0,			0},
347     {'}',	nv_findpar,	0,			FORWARD},
348     {'~',	nv_tilde,	0,			0},
349 
350     /* pound sign */
351     {POUND,	nv_ident,	0,			0},
352 #ifdef FEAT_MOUSE
353     {K_MOUSEUP, nv_mousescroll,	0,			MSCR_UP},
354     {K_MOUSEDOWN, nv_mousescroll, 0,			MSCR_DOWN},
355     {K_MOUSELEFT, nv_mousescroll, 0,			MSCR_LEFT},
356     {K_MOUSERIGHT, nv_mousescroll, 0,			MSCR_RIGHT},
357     {K_LEFTMOUSE, nv_mouse,	0,			0},
358     {K_LEFTMOUSE_NM, nv_mouse,	0,			0},
359     {K_LEFTDRAG, nv_mouse,	0,			0},
360     {K_LEFTRELEASE, nv_mouse,	0,			0},
361     {K_LEFTRELEASE_NM, nv_mouse, 0,			0},
362     {K_MIDDLEMOUSE, nv_mouse,	0,			0},
363     {K_MIDDLEDRAG, nv_mouse,	0,			0},
364     {K_MIDDLERELEASE, nv_mouse,	0,			0},
365     {K_RIGHTMOUSE, nv_mouse,	0,			0},
366     {K_RIGHTDRAG, nv_mouse,	0,			0},
367     {K_RIGHTRELEASE, nv_mouse,	0,			0},
368     {K_X1MOUSE, nv_mouse,	0,			0},
369     {K_X1DRAG, nv_mouse,	0,			0},
370     {K_X1RELEASE, nv_mouse,	0,			0},
371     {K_X2MOUSE, nv_mouse,	0,			0},
372     {K_X2DRAG, nv_mouse,	0,			0},
373     {K_X2RELEASE, nv_mouse,	0,			0},
374 #endif
375     {K_IGNORE,	nv_ignore,	NV_KEEPREG,		0},
376     {K_NOP,	nv_nop,		0,			0},
377     {K_INS,	nv_edit,	0,			0},
378     {K_KINS,	nv_edit,	0,			0},
379     {K_BS,	nv_ctrlh,	0,			0},
380     {K_UP,	nv_up,		NV_SSS|NV_STS,		FALSE},
381     {K_S_UP,	nv_page,	NV_SS,			BACKWARD},
382     {K_DOWN,	nv_down,	NV_SSS|NV_STS,		FALSE},
383     {K_S_DOWN,	nv_page,	NV_SS,			FORWARD},
384     {K_LEFT,	nv_left,	NV_SSS|NV_STS|NV_RL,	0},
385     {K_S_LEFT,	nv_bck_word,	NV_SS|NV_RL,		0},
386     {K_C_LEFT,	nv_bck_word,	NV_SSS|NV_RL|NV_STS,	1},
387     {K_RIGHT,	nv_right,	NV_SSS|NV_STS|NV_RL,	0},
388     {K_S_RIGHT,	nv_wordcmd,	NV_SS|NV_RL,		FALSE},
389     {K_C_RIGHT,	nv_wordcmd,	NV_SSS|NV_RL|NV_STS,	TRUE},
390     {K_PAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
391     {K_KPAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
392     {K_PAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
393     {K_KPAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
394     {K_END,	nv_end,		NV_SSS|NV_STS,		FALSE},
395     {K_KEND,	nv_end,		NV_SSS|NV_STS,		FALSE},
396     {K_S_END,	nv_end,		NV_SS,			FALSE},
397     {K_C_END,	nv_end,		NV_SSS|NV_STS,		TRUE},
398     {K_HOME,	nv_home,	NV_SSS|NV_STS,		0},
399     {K_KHOME,	nv_home,	NV_SSS|NV_STS,		0},
400     {K_S_HOME,	nv_home,	NV_SS,			0},
401     {K_C_HOME,	nv_goto,	NV_SSS|NV_STS,		FALSE},
402     {K_DEL,	nv_abbrev,	0,			0},
403     {K_KDEL,	nv_abbrev,	0,			0},
404     {K_UNDO,	nv_kundo,	0,			0},
405     {K_HELP,	nv_help,	NV_NCW,			0},
406     {K_F1,	nv_help,	NV_NCW,			0},
407     {K_XF1,	nv_help,	NV_NCW,			0},
408     {K_SELECT,	nv_select,	0,			0},
409 #ifdef FEAT_GUI
410     {K_VER_SCROLLBAR, nv_ver_scrollbar, 0,		0},
411     {K_HOR_SCROLLBAR, nv_hor_scrollbar, 0,		0},
412 #endif
413 #ifdef FEAT_GUI_TABLINE
414     {K_TABLINE, nv_tabline,	0,			0},
415     {K_TABMENU, nv_tabmenu,	0,			0},
416 #endif
417 #ifdef FEAT_FKMAP
418     {K_F8,	farsi_fkey,	0,			0},
419     {K_F9,	farsi_fkey,	0,			0},
420 #endif
421 #ifdef FEAT_SNIFF
422     {K_SNIFF,	nv_sniff,	0,			0},
423 #endif
424 #ifdef FEAT_NETBEANS_INTG
425     {K_F21,	nv_nbcmd,	NV_NCH_ALW,		0},
426 #endif
427 #ifdef FEAT_DND
428     {K_DROP,	nv_drop,	NV_STS,			0},
429 #endif
430 #ifdef FEAT_AUTOCMD
431     {K_CURSORHOLD, nv_cursorhold, NV_KEEPREG,		0},
432 #endif
433 };
434 
435 /* Number of commands in nv_cmds[]. */
436 #define NV_CMDS_SIZE (sizeof(nv_cmds) / sizeof(struct nv_cmd))
437 
438 /* Sorted index of commands in nv_cmds[]. */
439 static short nv_cmd_idx[NV_CMDS_SIZE];
440 
441 /* The highest index for which
442  * nv_cmds[idx].cmd_char == nv_cmd_idx[nv_cmds[idx].cmd_char] */
443 static int nv_max_linear;
444 
445 /*
446  * Compare functions for qsort() below, that checks the command character
447  * through the index in nv_cmd_idx[].
448  */
449     static int
450 #ifdef __BORLANDC__
451 _RTLENTRYF
452 #endif
453 nv_compare(s1, s2)
454     const void	*s1;
455     const void	*s2;
456 {
457     int		c1, c2;
458 
459     /* The commands are sorted on absolute value. */
460     c1 = nv_cmds[*(const short *)s1].cmd_char;
461     c2 = nv_cmds[*(const short *)s2].cmd_char;
462     if (c1 < 0)
463 	c1 = -c1;
464     if (c2 < 0)
465 	c2 = -c2;
466     return c1 - c2;
467 }
468 
469 /*
470  * Initialize the nv_cmd_idx[] table.
471  */
472     void
473 init_normal_cmds()
474 {
475     int		i;
476 
477     /* Fill the index table with a one to one relation. */
478     for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
479 	nv_cmd_idx[i] = i;
480 
481     /* Sort the commands by the command character.  */
482     qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);
483 
484     /* Find the first entry that can't be indexed by the command character. */
485     for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
486 	if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
487 	    break;
488     nv_max_linear = i - 1;
489 }
490 
491 /*
492  * Search for a command in the commands table.
493  * Returns -1 for invalid command.
494  */
495     static int
496 find_command(cmdchar)
497     int		cmdchar;
498 {
499     int		i;
500     int		idx;
501     int		top, bot;
502     int		c;
503 
504 #ifdef FEAT_MBYTE
505     /* A multi-byte character is never a command. */
506     if (cmdchar >= 0x100)
507 	return -1;
508 #endif
509 
510     /* We use the absolute value of the character.  Special keys have a
511      * negative value, but are sorted on their absolute value. */
512     if (cmdchar < 0)
513 	cmdchar = -cmdchar;
514 
515     /* If the character is in the first part: The character is the index into
516      * nv_cmd_idx[]. */
517     if (cmdchar <= nv_max_linear)
518 	return nv_cmd_idx[cmdchar];
519 
520     /* Perform a binary search. */
521     bot = nv_max_linear + 1;
522     top = NV_CMDS_SIZE - 1;
523     idx = -1;
524     while (bot <= top)
525     {
526 	i = (top + bot) / 2;
527 	c = nv_cmds[nv_cmd_idx[i]].cmd_char;
528 	if (c < 0)
529 	    c = -c;
530 	if (cmdchar == c)
531 	{
532 	    idx = nv_cmd_idx[i];
533 	    break;
534 	}
535 	if (cmdchar > c)
536 	    bot = i + 1;
537 	else
538 	    top = i - 1;
539     }
540     return idx;
541 }
542 
543 /*
544  * Execute a command in Normal mode.
545  */
546     void
547 normal_cmd(oap, toplevel)
548     oparg_T	*oap;
549     int		toplevel UNUSED;	/* TRUE when called from main() */
550 {
551     cmdarg_T	ca;			/* command arguments */
552     int		c;
553     int		ctrl_w = FALSE;		/* got CTRL-W command */
554     int		old_col = curwin->w_curswant;
555 #ifdef FEAT_CMDL_INFO
556     int		need_flushbuf;		/* need to call out_flush() */
557 #endif
558     pos_T	old_pos;		/* cursor position before command */
559     int		mapped_len;
560     static int	old_mapped_len = 0;
561     int		idx;
562 #ifdef FEAT_EVAL
563     int		set_prevcount = FALSE;
564 #endif
565 
566     vim_memset(&ca, 0, sizeof(ca));	/* also resets ca.retval */
567     ca.oap = oap;
568 
569     /* Use a count remembered from before entering an operator.  After typing
570      * "3d" we return from normal_cmd() and come back here, the "3" is
571      * remembered in "opcount". */
572     ca.opcount = opcount;
573 
574 #ifdef FEAT_SNIFF
575     want_sniff_request = sniff_connected;
576 #endif
577 
578     /*
579      * If there is an operator pending, then the command we take this time
580      * will terminate it. Finish_op tells us to finish the operation before
581      * returning this time (unless the operation was cancelled).
582      */
583 #ifdef CURSOR_SHAPE
584     c = finish_op;
585 #endif
586     finish_op = (oap->op_type != OP_NOP);
587 #ifdef CURSOR_SHAPE
588     if (finish_op != c)
589     {
590 	ui_cursor_shape();		/* may show different cursor shape */
591 # ifdef FEAT_MOUSESHAPE
592 	update_mouseshape(-1);
593 # endif
594     }
595 #endif
596 
597     /* When not finishing an operator and no register name typed, reset the
598      * count. */
599     if (!finish_op && !oap->regname)
600     {
601 	ca.opcount = 0;
602 #ifdef FEAT_EVAL
603 	set_prevcount = TRUE;
604 #endif
605     }
606 
607 #ifdef FEAT_AUTOCMD
608     /* Restore counts from before receiving K_CURSORHOLD.  This means after
609      * typing "3", handling K_CURSORHOLD and then typing "2" we get "32", not
610      * "3 * 2". */
611     if (oap->prev_opcount > 0 || oap->prev_count0 > 0)
612     {
613 	ca.opcount = oap->prev_opcount;
614 	ca.count0 = oap->prev_count0;
615 	oap->prev_opcount = 0;
616 	oap->prev_count0 = 0;
617     }
618 #endif
619 
620     mapped_len = typebuf_maplen();
621 
622     State = NORMAL_BUSY;
623 #ifdef USE_ON_FLY_SCROLL
624     dont_scroll = FALSE;	/* allow scrolling here */
625 #endif
626 
627 #ifdef FEAT_EVAL
628     /* Set v:count here, when called from main() and not a stuffed
629      * command, so that v:count can be used in an expression mapping
630      * when there is no count. Do set it for redo. */
631     if (toplevel && readbuf1_empty())
632 	set_vcount_ca(&ca, &set_prevcount);
633 #endif
634 
635     /*
636      * Get the command character from the user.
637      */
638     c = safe_vgetc();
639     LANGMAP_ADJUST(c, TRUE);
640 
641     /*
642      * If a mapping was started in Visual or Select mode, remember the length
643      * of the mapping.  This is used below to not return to Insert mode for as
644      * long as the mapping is being executed.
645      */
646     if (restart_edit == 0)
647 	old_mapped_len = 0;
648     else if (old_mapped_len
649 		|| (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0))
650 	old_mapped_len = typebuf_maplen();
651 
652     if (c == NUL)
653 	c = K_ZERO;
654 
655     /*
656      * In Select mode, typed text replaces the selection.
657      */
658     if (VIsual_active
659 	    && VIsual_select
660 	    && (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
661     {
662 	/* Fake a "c"hange command.  When "restart_edit" is set (e.g., because
663 	 * 'insertmode' is set) fake a "d"elete command, Insert mode will
664 	 * restart automatically.
665 	 * Insert the typed character in the typeahead buffer, so that it can
666 	 * be mapped in Insert mode.  Required for ":lmap" to work. */
667 	ins_char_typebuf(c);
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 	old_mapped_len = 0;	/* do go to Insert mode */
674     }
675 
676 #ifdef FEAT_CMDL_INFO
677     need_flushbuf = add_to_showcmd(c);
678 #endif
679 
680 getcount:
681     if (!(VIsual_active && VIsual_select))
682     {
683 	/*
684 	 * Handle a count before a command and compute ca.count0.
685 	 * Note that '0' is a command and not the start of a count, but it's
686 	 * part of a count after other digits.
687 	 */
688 	while (    (c >= '1' && c <= '9')
689 		|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
690 	{
691 	    if (c == K_DEL || c == K_KDEL)
692 	    {
693 		ca.count0 /= 10;
694 #ifdef FEAT_CMDL_INFO
695 		del_from_showcmd(4);	/* delete the digit and ~@% */
696 #endif
697 	    }
698 	    else
699 		ca.count0 = ca.count0 * 10 + (c - '0');
700 	    if (ca.count0 < 0)	    /* got too large! */
701 		ca.count0 = 999999999L;
702 #ifdef FEAT_EVAL
703 	    /* Set v:count here, when called from main() and not a stuffed
704 	     * command, so that v:count can be used in an expression mapping
705 	     * right after the count. Do set it for redo. */
706 	    if (toplevel && readbuf1_empty())
707 		set_vcount_ca(&ca, &set_prevcount);
708 #endif
709 	    if (ctrl_w)
710 	    {
711 		++no_mapping;
712 		++allow_keys;		/* no mapping for nchar, but keys */
713 	    }
714 	    ++no_zero_mapping;		/* don't map zero here */
715 	    c = plain_vgetc();
716 	    LANGMAP_ADJUST(c, TRUE);
717 	    --no_zero_mapping;
718 	    if (ctrl_w)
719 	    {
720 		--no_mapping;
721 		--allow_keys;
722 	    }
723 #ifdef FEAT_CMDL_INFO
724 	    need_flushbuf |= add_to_showcmd(c);
725 #endif
726 	}
727 
728 	/*
729 	 * If we got CTRL-W there may be a/another count
730 	 */
731 	if (c == Ctrl_W && !ctrl_w && oap->op_type == OP_NOP)
732 	{
733 	    ctrl_w = TRUE;
734 	    ca.opcount = ca.count0;	/* remember first count */
735 	    ca.count0 = 0;
736 	    ++no_mapping;
737 	    ++allow_keys;		/* no mapping for nchar, but keys */
738 	    c = plain_vgetc();		/* get next character */
739 	    LANGMAP_ADJUST(c, TRUE);
740 	    --no_mapping;
741 	    --allow_keys;
742 #ifdef FEAT_CMDL_INFO
743 	    need_flushbuf |= add_to_showcmd(c);
744 #endif
745 	    goto getcount;		/* jump back */
746 	}
747     }
748 
749 #ifdef FEAT_AUTOCMD
750     if (c == K_CURSORHOLD)
751     {
752 	/* Save the count values so that ca.opcount and ca.count0 are exactly
753 	 * the same when coming back here after handling K_CURSORHOLD. */
754 	oap->prev_opcount = ca.opcount;
755 	oap->prev_count0 = ca.count0;
756     }
757     else
758 #endif
759 	if (ca.opcount != 0)
760     {
761 	/*
762 	 * If we're in the middle of an operator (including after entering a
763 	 * yank buffer with '"') AND we had a count before the operator, then
764 	 * that count overrides the current value of ca.count0.
765 	 * What this means effectively, is that commands like "3dw" get turned
766 	 * into "d3w" which makes things fall into place pretty neatly.
767 	 * If you give a count before AND after the operator, they are
768 	 * multiplied.
769 	 */
770 	if (ca.count0)
771 	    ca.count0 *= ca.opcount;
772 	else
773 	    ca.count0 = ca.opcount;
774     }
775 
776     /*
777      * Always remember the count.  It will be set to zero (on the next call,
778      * above) when there is no pending operator.
779      * When called from main(), save the count for use by the "count" built-in
780      * variable.
781      */
782     ca.opcount = ca.count0;
783     ca.count1 = (ca.count0 == 0 ? 1 : ca.count0);
784 
785 #ifdef FEAT_EVAL
786     /*
787      * Only set v:count when called from main() and not a stuffed command.
788      * Do set it for redo.
789      */
790     if (toplevel && readbuf1_empty())
791 	set_vcount(ca.count0, ca.count1, set_prevcount);
792 #endif
793 
794     /*
795      * Find the command character in the table of commands.
796      * For CTRL-W we already got nchar when looking for a count.
797      */
798     if (ctrl_w)
799     {
800 	ca.nchar = c;
801 	ca.cmdchar = Ctrl_W;
802     }
803     else
804 	ca.cmdchar = c;
805     idx = find_command(ca.cmdchar);
806     if (idx < 0)
807     {
808 	/* Not a known command: beep. */
809 	clearopbeep(oap);
810 	goto normal_end;
811     }
812 
813     if (text_locked() && (nv_cmds[idx].cmd_flags & NV_NCW))
814     {
815 	/* This command is not allowed while editing a cmdline: beep. */
816 	clearopbeep(oap);
817 	text_locked_msg();
818 	goto normal_end;
819     }
820 #ifdef FEAT_AUTOCMD
821     if ((nv_cmds[idx].cmd_flags & NV_NCW) && curbuf_locked())
822 	goto normal_end;
823 #endif
824 
825     /*
826      * In Visual/Select mode, a few keys are handled in a special way.
827      */
828     if (VIsual_active)
829     {
830 	/* when 'keymodel' contains "stopsel" may stop Select/Visual mode */
831 	if (km_stopsel
832 		&& (nv_cmds[idx].cmd_flags & NV_STS)
833 		&& !(mod_mask & MOD_MASK_SHIFT))
834 	{
835 	    end_visual_mode();
836 	    redraw_curbuf_later(INVERTED);
837 	}
838 
839 	/* Keys that work different when 'keymodel' contains "startsel" */
840 	if (km_startsel)
841 	{
842 	    if (nv_cmds[idx].cmd_flags & NV_SS)
843 	    {
844 		unshift_special(&ca);
845 		idx = find_command(ca.cmdchar);
846 		if (idx < 0)
847 		{
848 		    /* Just in case */
849 		    clearopbeep(oap);
850 		    goto normal_end;
851 		}
852 	    }
853 	    else if ((nv_cmds[idx].cmd_flags & NV_SSS)
854 					       && (mod_mask & MOD_MASK_SHIFT))
855 	    {
856 		mod_mask &= ~MOD_MASK_SHIFT;
857 	    }
858 	}
859     }
860 
861 #ifdef FEAT_RIGHTLEFT
862     if (curwin->w_p_rl && KeyTyped && !KeyStuffed
863 					  && (nv_cmds[idx].cmd_flags & NV_RL))
864     {
865 	/* Invert horizontal movements and operations.  Only when typed by the
866 	 * user directly, not when the result of a mapping or "x" translated
867 	 * to "dl". */
868 	switch (ca.cmdchar)
869 	{
870 	    case 'l':	    ca.cmdchar = 'h'; break;
871 	    case K_RIGHT:   ca.cmdchar = K_LEFT; break;
872 	    case K_S_RIGHT: ca.cmdchar = K_S_LEFT; break;
873 	    case K_C_RIGHT: ca.cmdchar = K_C_LEFT; break;
874 	    case 'h':	    ca.cmdchar = 'l'; break;
875 	    case K_LEFT:    ca.cmdchar = K_RIGHT; break;
876 	    case K_S_LEFT:  ca.cmdchar = K_S_RIGHT; break;
877 	    case K_C_LEFT:  ca.cmdchar = K_C_RIGHT; break;
878 	    case '>':	    ca.cmdchar = '<'; break;
879 	    case '<':	    ca.cmdchar = '>'; break;
880 	}
881 	idx = find_command(ca.cmdchar);
882     }
883 #endif
884 
885     /*
886      * Get an additional character if we need one.
887      */
888     if ((nv_cmds[idx].cmd_flags & NV_NCH)
889 	    && (((nv_cmds[idx].cmd_flags & NV_NCH_NOP) == NV_NCH_NOP
890 		    && oap->op_type == OP_NOP)
891 		|| (nv_cmds[idx].cmd_flags & NV_NCH_ALW) == NV_NCH_ALW
892 		|| (ca.cmdchar == 'q'
893 		    && oap->op_type == OP_NOP
894 		    && !Recording
895 		    && !Exec_reg)
896 		|| ((ca.cmdchar == 'a' || ca.cmdchar == 'i')
897 		    && (oap->op_type != OP_NOP || VIsual_active))))
898     {
899 	int	*cp;
900 	int	repl = FALSE;	/* get character for replace mode */
901 	int	lit = FALSE;	/* get extra character literally */
902 	int	langmap_active = FALSE;    /* using :lmap mappings */
903 	int	lang;		/* getting a text character */
904 #ifdef USE_IM_CONTROL
905 	int	save_smd;	/* saved value of p_smd */
906 #endif
907 
908 	++no_mapping;
909 	++allow_keys;		/* no mapping for nchar, but allow key codes */
910 #ifdef FEAT_AUTOCMD
911 	/* Don't generate a CursorHold event here, most commands can't handle
912 	 * it, e.g., nv_replace(), nv_csearch(). */
913 	did_cursorhold = TRUE;
914 #endif
915 	if (ca.cmdchar == 'g')
916 	{
917 	    /*
918 	     * For 'g' get the next character now, so that we can check for
919 	     * "gr", "g'" and "g`".
920 	     */
921 	    ca.nchar = plain_vgetc();
922 	    LANGMAP_ADJUST(ca.nchar, TRUE);
923 #ifdef FEAT_CMDL_INFO
924 	    need_flushbuf |= add_to_showcmd(ca.nchar);
925 #endif
926 	    if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
927 						       || ca.nchar == Ctrl_BSL)
928 	    {
929 		cp = &ca.extra_char;	/* need to get a third character */
930 		if (ca.nchar != 'r')
931 		    lit = TRUE;			/* get it literally */
932 		else
933 		    repl = TRUE;		/* get it in replace mode */
934 	    }
935 	    else
936 		cp = NULL;		/* no third character needed */
937 	}
938 	else
939 	{
940 	    if (ca.cmdchar == 'r')		/* get it in replace mode */
941 		repl = TRUE;
942 	    cp = &ca.nchar;
943 	}
944 	lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));
945 
946 	/*
947 	 * Get a second or third character.
948 	 */
949 	if (cp != NULL)
950 	{
951 #ifdef CURSOR_SHAPE
952 	    if (repl)
953 	    {
954 		State = REPLACE;	/* pretend Replace mode */
955 		ui_cursor_shape();	/* show different cursor shape */
956 	    }
957 #endif
958 	    if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
959 	    {
960 		/* Allow mappings defined with ":lmap". */
961 		--no_mapping;
962 		--allow_keys;
963 		if (repl)
964 		    State = LREPLACE;
965 		else
966 		    State = LANGMAP;
967 		langmap_active = TRUE;
968 	    }
969 #ifdef USE_IM_CONTROL
970 	    save_smd = p_smd;
971 	    p_smd = FALSE;	/* Don't let the IM code show the mode here */
972 	    if (lang && curbuf->b_p_iminsert == B_IMODE_IM)
973 		im_set_active(TRUE);
974 #endif
975 
976 	    *cp = plain_vgetc();
977 
978 	    if (langmap_active)
979 	    {
980 		/* Undo the decrement done above */
981 		++no_mapping;
982 		++allow_keys;
983 		State = NORMAL_BUSY;
984 	    }
985 #ifdef USE_IM_CONTROL
986 	    if (lang)
987 	    {
988 		if (curbuf->b_p_iminsert != B_IMODE_LMAP)
989 		    im_save_status(&curbuf->b_p_iminsert);
990 		im_set_active(FALSE);
991 	    }
992 	    p_smd = save_smd;
993 #endif
994 #ifdef CURSOR_SHAPE
995 	    State = NORMAL_BUSY;
996 #endif
997 #ifdef FEAT_CMDL_INFO
998 	    need_flushbuf |= add_to_showcmd(*cp);
999 #endif
1000 
1001 	    if (!lit)
1002 	    {
1003 #ifdef FEAT_DIGRAPHS
1004 		/* Typing CTRL-K gets a digraph. */
1005 		if (*cp == Ctrl_K
1006 			&& ((nv_cmds[idx].cmd_flags & NV_LANG)
1007 			    || cp == &ca.extra_char)
1008 			&& vim_strchr(p_cpo, CPO_DIGRAPH) == NULL)
1009 		{
1010 		    c = get_digraph(FALSE);
1011 		    if (c > 0)
1012 		    {
1013 			*cp = c;
1014 # ifdef FEAT_CMDL_INFO
1015 			/* Guessing how to update showcmd here... */
1016 			del_from_showcmd(3);
1017 			need_flushbuf |= add_to_showcmd(*cp);
1018 # endif
1019 		    }
1020 		}
1021 #endif
1022 
1023 		/* adjust chars > 127, except after "tTfFr" commands */
1024 		LANGMAP_ADJUST(*cp, !lang);
1025 #ifdef FEAT_RIGHTLEFT
1026 		/* adjust Hebrew mapped char */
1027 		if (p_hkmap && lang && KeyTyped)
1028 		    *cp = hkmap(*cp);
1029 # ifdef FEAT_FKMAP
1030 		/* adjust Farsi mapped char */
1031 		if (p_fkmap && lang && KeyTyped)
1032 		    *cp = fkmap(*cp);
1033 # endif
1034 #endif
1035 	    }
1036 
1037 	    /*
1038 	     * When the next character is CTRL-\ a following CTRL-N means the
1039 	     * command is aborted and we go to Normal mode.
1040 	     */
1041 	    if (cp == &ca.extra_char
1042 		    && ca.nchar == Ctrl_BSL
1043 		    && (ca.extra_char == Ctrl_N || ca.extra_char == Ctrl_G))
1044 	    {
1045 		ca.cmdchar = Ctrl_BSL;
1046 		ca.nchar = ca.extra_char;
1047 		idx = find_command(ca.cmdchar);
1048 	    }
1049 	    else if ((ca.nchar == 'n' || ca.nchar == 'N') && ca.cmdchar == 'g')
1050 		ca.oap->op_type = get_op_type(*cp, NUL);
1051 	    else if (*cp == Ctrl_BSL)
1052 	    {
1053 		long towait = (p_ttm >= 0 ? p_ttm : p_tm);
1054 
1055 		/* There is a busy wait here when typing "f<C-\>" and then
1056 		 * something different from CTRL-N.  Can't be avoided. */
1057 		while ((c = vpeekc()) <= 0 && towait > 0L)
1058 		{
1059 		    do_sleep(towait > 50L ? 50L : towait);
1060 		    towait -= 50L;
1061 		}
1062 		if (c > 0)
1063 		{
1064 		    c = plain_vgetc();
1065 		    if (c != Ctrl_N && c != Ctrl_G)
1066 			vungetc(c);
1067 		    else
1068 		    {
1069 			ca.cmdchar = Ctrl_BSL;
1070 			ca.nchar = c;
1071 			idx = find_command(ca.cmdchar);
1072 		    }
1073 		}
1074 	    }
1075 
1076 #ifdef FEAT_MBYTE
1077 	    /* When getting a text character and the next character is a
1078 	     * multi-byte character, it could be a composing character.
1079 	     * However, don't wait for it to arrive. Also, do enable mapping,
1080 	     * because if it's put back with vungetc() it's too late to apply
1081 	     * mapping. */
1082 	    --no_mapping;
1083 	    while (enc_utf8 && lang && (c = vpeekc()) > 0
1084 				 && (c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1))
1085 	    {
1086 		c = plain_vgetc();
1087 		if (!utf_iscomposing(c))
1088 		{
1089 		    vungetc(c);		/* it wasn't, put it back */
1090 		    break;
1091 		}
1092 		else if (ca.ncharC1 == 0)
1093 		    ca.ncharC1 = c;
1094 		else
1095 		    ca.ncharC2 = c;
1096 	    }
1097 	    ++no_mapping;
1098 #endif
1099 	}
1100 	--no_mapping;
1101 	--allow_keys;
1102     }
1103 
1104 #ifdef FEAT_CMDL_INFO
1105     /*
1106      * Flush the showcmd characters onto the screen so we can see them while
1107      * the command is being executed.  Only do this when the shown command was
1108      * actually displayed, otherwise this will slow down a lot when executing
1109      * mappings.
1110      */
1111     if (need_flushbuf)
1112 	out_flush();
1113 #endif
1114 #ifdef FEAT_AUTOCMD
1115     if (ca.cmdchar != K_IGNORE)
1116 	did_cursorhold = FALSE;
1117 #endif
1118 
1119     State = NORMAL;
1120 
1121     if (ca.nchar == ESC)
1122     {
1123 	clearop(oap);
1124 	if (restart_edit == 0 && goto_im())
1125 	    restart_edit = 'a';
1126 	goto normal_end;
1127     }
1128 
1129     if (ca.cmdchar != K_IGNORE)
1130     {
1131 	msg_didout = FALSE;    /* don't scroll screen up for normal command */
1132 	msg_col = 0;
1133     }
1134 
1135     old_pos = curwin->w_cursor;		/* remember where cursor was */
1136 
1137     /* When 'keymodel' contains "startsel" some keys start Select/Visual
1138      * mode. */
1139     if (!VIsual_active && km_startsel)
1140     {
1141 	if (nv_cmds[idx].cmd_flags & NV_SS)
1142 	{
1143 	    start_selection();
1144 	    unshift_special(&ca);
1145 	    idx = find_command(ca.cmdchar);
1146 	}
1147 	else if ((nv_cmds[idx].cmd_flags & NV_SSS)
1148 					   && (mod_mask & MOD_MASK_SHIFT))
1149 	{
1150 	    start_selection();
1151 	    mod_mask &= ~MOD_MASK_SHIFT;
1152 	}
1153     }
1154 
1155     /*
1156      * Execute the command!
1157      * Call the command function found in the commands table.
1158      */
1159     ca.arg = nv_cmds[idx].cmd_arg;
1160     (nv_cmds[idx].cmd_func)(&ca);
1161 
1162     /*
1163      * If we didn't start or finish an operator, reset oap->regname, unless we
1164      * need it later.
1165      */
1166     if (!finish_op
1167 	    && !oap->op_type
1168 	    && (idx < 0 || !(nv_cmds[idx].cmd_flags & NV_KEEPREG)))
1169     {
1170 	clearop(oap);
1171 #ifdef FEAT_EVAL
1172 	{
1173 	    int regname = 0;
1174 
1175 	    /* Adjust the register according to 'clipboard', so that when
1176 	     * "unnamed" is present it becomes '*' or '+' instead of '"'. */
1177 # ifdef FEAT_CLIPBOARD
1178 	    adjust_clip_reg(&regname);
1179 # endif
1180 	    set_reg_var(regname);
1181 	}
1182 #endif
1183     }
1184 
1185     /* Get the length of mapped chars again after typing a count, second
1186      * character or "z333<cr>". */
1187     if (old_mapped_len > 0)
1188 	old_mapped_len = typebuf_maplen();
1189 
1190     /*
1191      * If an operation is pending, handle it...
1192      */
1193     do_pending_operator(&ca, old_col, FALSE);
1194 
1195     /*
1196      * Wait for a moment when a message is displayed that will be overwritten
1197      * by the mode message.
1198      * In Visual mode and with "^O" in Insert mode, a short message will be
1199      * overwritten by the mode message.  Wait a bit, until a key is hit.
1200      * In Visual mode, it's more important to keep the Visual area updated
1201      * than keeping a message (e.g. from a /pat search).
1202      * Only do this if the command was typed, not from a mapping.
1203      * Don't wait when emsg_silent is non-zero.
1204      * Also wait a bit after an error message, e.g. for "^O:".
1205      * Don't redraw the screen, it would remove the message.
1206      */
1207     if (       ((p_smd
1208 		    && msg_silent == 0
1209 		    && (restart_edit != 0
1210 			|| (VIsual_active
1211 			    && old_pos.lnum == curwin->w_cursor.lnum
1212 			    && old_pos.col == curwin->w_cursor.col)
1213 		       )
1214 		    && (clear_cmdline
1215 			|| redraw_cmdline)
1216 		    && (msg_didout || (msg_didany && msg_scroll))
1217 		    && !msg_nowait
1218 		    && KeyTyped)
1219 		|| (restart_edit != 0
1220 		    && !VIsual_active
1221 		    && (msg_scroll
1222 			|| emsg_on_display)))
1223 	    && oap->regname == 0
1224 	    && !(ca.retval & CA_COMMAND_BUSY)
1225 	    && stuff_empty()
1226 	    && typebuf_typed()
1227 	    && emsg_silent == 0
1228 	    && !did_wait_return
1229 	    && oap->op_type == OP_NOP)
1230     {
1231 	int	save_State = State;
1232 
1233 	/* Draw the cursor with the right shape here */
1234 	if (restart_edit != 0)
1235 	    State = INSERT;
1236 
1237 	/* If need to redraw, and there is a "keep_msg", redraw before the
1238 	 * delay */
1239 	if (must_redraw && keep_msg != NULL && !emsg_on_display)
1240 	{
1241 	    char_u	*kmsg;
1242 
1243 	    kmsg = keep_msg;
1244 	    keep_msg = NULL;
1245 	    /* showmode() will clear keep_msg, but we want to use it anyway */
1246 	    update_screen(0);
1247 	    /* now reset it, otherwise it's put in the history again */
1248 	    keep_msg = kmsg;
1249 	    msg_attr(kmsg, keep_msg_attr);
1250 	    vim_free(kmsg);
1251 	}
1252 	setcursor();
1253 	cursor_on();
1254 	out_flush();
1255 	if (msg_scroll || emsg_on_display)
1256 	    ui_delay(1000L, TRUE);	/* wait at least one second */
1257 	ui_delay(3000L, FALSE);		/* wait up to three seconds */
1258 	State = save_State;
1259 
1260 	msg_scroll = FALSE;
1261 	emsg_on_display = FALSE;
1262     }
1263 
1264     /*
1265      * Finish up after executing a Normal mode command.
1266      */
1267 normal_end:
1268 
1269     msg_nowait = FALSE;
1270 
1271     /* Reset finish_op, in case it was set */
1272 #ifdef CURSOR_SHAPE
1273     c = finish_op;
1274 #endif
1275     finish_op = FALSE;
1276 #ifdef CURSOR_SHAPE
1277     /* Redraw the cursor with another shape, if we were in Operator-pending
1278      * mode or did a replace command. */
1279     if (c || ca.cmdchar == 'r')
1280     {
1281 	ui_cursor_shape();		/* may show different cursor shape */
1282 # ifdef FEAT_MOUSESHAPE
1283 	update_mouseshape(-1);
1284 # endif
1285     }
1286 #endif
1287 
1288 #ifdef FEAT_CMDL_INFO
1289     if (oap->op_type == OP_NOP && oap->regname == 0
1290 # ifdef FEAT_AUTOCMD
1291 	    && ca.cmdchar != K_CURSORHOLD
1292 # endif
1293 	    )
1294 	clear_showcmd();
1295 #endif
1296 
1297     checkpcmark();		/* check if we moved since setting pcmark */
1298     vim_free(ca.searchbuf);
1299 
1300 #ifdef FEAT_MBYTE
1301     if (has_mbyte)
1302 	mb_adjust_cursor();
1303 #endif
1304 
1305 #ifdef FEAT_SCROLLBIND
1306     if (curwin->w_p_scb && toplevel)
1307     {
1308 	validate_cursor();	/* may need to update w_leftcol */
1309 	do_check_scrollbind(TRUE);
1310     }
1311 #endif
1312 
1313 #ifdef FEAT_CURSORBIND
1314     if (curwin->w_p_crb && toplevel)
1315     {
1316 	validate_cursor();	/* may need to update w_leftcol */
1317 	do_check_cursorbind();
1318     }
1319 #endif
1320 
1321     /*
1322      * May restart edit(), if we got here with CTRL-O in Insert mode (but not
1323      * if still inside a mapping that started in Visual mode).
1324      * May switch from Visual to Select mode after CTRL-O command.
1325      */
1326     if (       oap->op_type == OP_NOP
1327 	    && ((restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1328 		|| restart_VIsual_select == 1)
1329 	    && !(ca.retval & CA_COMMAND_BUSY)
1330 	    && stuff_empty()
1331 	    && oap->regname == 0)
1332     {
1333 	if (restart_VIsual_select == 1)
1334 	{
1335 	    VIsual_select = TRUE;
1336 	    showmode();
1337 	    restart_VIsual_select = 0;
1338 	}
1339 	if (restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1340 	    (void)edit(restart_edit, FALSE, 1L);
1341     }
1342 
1343     if (restart_VIsual_select == 2)
1344 	restart_VIsual_select = 1;
1345 
1346     /* Save count before an operator for next time. */
1347     opcount = ca.opcount;
1348 }
1349 
1350 #ifdef FEAT_EVAL
1351 /*
1352  * Set v:count and v:count1 according to "cap".
1353  * Set v:prevcount only when "set_prevcount" is TRUE.
1354  */
1355     static void
1356 set_vcount_ca(cap, set_prevcount)
1357     cmdarg_T	*cap;
1358     int		*set_prevcount;
1359 {
1360     long count = cap->count0;
1361 
1362     /* multiply with cap->opcount the same way as above */
1363     if (cap->opcount != 0)
1364 	count = cap->opcount * (count == 0 ? 1 : count);
1365     set_vcount(count, count == 0 ? 1 : count, *set_prevcount);
1366     *set_prevcount = FALSE;  /* only set v:prevcount once */
1367 }
1368 #endif
1369 
1370 /*
1371  * Handle an operator after visual mode or when the movement is finished
1372  */
1373     void
1374 do_pending_operator(cap, old_col, gui_yank)
1375     cmdarg_T	*cap;
1376     int		old_col;
1377     int		gui_yank;
1378 {
1379     oparg_T	*oap = cap->oap;
1380     pos_T	old_cursor;
1381     int		empty_region_error;
1382     int		restart_edit_save;
1383 #ifdef FEAT_LINEBREAK
1384     int		lbr_saved = curwin->w_p_lbr;
1385 #endif
1386 
1387     /* The visual area is remembered for redo */
1388     static int	    redo_VIsual_mode = NUL; /* 'v', 'V', or Ctrl-V */
1389     static linenr_T redo_VIsual_line_count; /* number of lines */
1390     static colnr_T  redo_VIsual_vcol;	    /* number of cols or end column */
1391     static long	    redo_VIsual_count;	    /* count for Visual operator */
1392 #ifdef FEAT_VIRTUALEDIT
1393     int		    include_line_break = FALSE;
1394 #endif
1395 
1396 #if defined(FEAT_CLIPBOARD)
1397     /*
1398      * Yank the visual area into the GUI selection register before we operate
1399      * on it and lose it forever.
1400      * Don't do it if a specific register was specified, so that ""x"*P works.
1401      * This could call do_pending_operator() recursively, but that's OK
1402      * because gui_yank will be TRUE for the nested call.
1403      */
1404     if ((clip_star.available || clip_plus.available)
1405 	    && oap->op_type != OP_NOP
1406 	    && !gui_yank
1407 	    && VIsual_active
1408 	    && !redo_VIsual_busy
1409 	    && oap->regname == 0)
1410 	clip_auto_select();
1411 #endif
1412     old_cursor = curwin->w_cursor;
1413 
1414     /*
1415      * If an operation is pending, handle it...
1416      */
1417     if ((finish_op || VIsual_active) && oap->op_type != OP_NOP)
1418     {
1419 #ifdef FEAT_LINEBREAK
1420 	/* Avoid a problem with unwanted linebreaks in block mode. */
1421 	curwin->w_p_lbr = FALSE;
1422 #endif
1423 	oap->is_VIsual = VIsual_active;
1424 	if (oap->motion_force == 'V')
1425 	    oap->motion_type = MLINE;
1426 	else if (oap->motion_force == 'v')
1427 	{
1428 	    /* If the motion was linewise, "inclusive" will not have been set.
1429 	     * Use "exclusive" to be consistent.  Makes "dvj" work nice. */
1430 	    if (oap->motion_type == MLINE)
1431 		oap->inclusive = FALSE;
1432 	    /* If the motion already was characterwise, toggle "inclusive" */
1433 	    else if (oap->motion_type == MCHAR)
1434 		oap->inclusive = !oap->inclusive;
1435 	    oap->motion_type = MCHAR;
1436 	}
1437 	else if (oap->motion_force == Ctrl_V)
1438 	{
1439 	    /* Change line- or characterwise motion into Visual block mode. */
1440 	    VIsual_active = TRUE;
1441 	    VIsual = oap->start;
1442 	    VIsual_mode = Ctrl_V;
1443 	    VIsual_select = FALSE;
1444 	    VIsual_reselect = FALSE;
1445 	}
1446 
1447 	/* Only redo yank when 'y' flag is in 'cpoptions'. */
1448 	/* Never redo "zf" (define fold). */
1449 	if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1450 		&& ((!VIsual_active || oap->motion_force)
1451 		    /* Also redo Operator-pending Visual mode mappings */
1452 		    || (VIsual_active && cap->cmdchar == ':'
1453 						 && oap->op_type != OP_COLON))
1454 		&& cap->cmdchar != 'D'
1455 #ifdef FEAT_FOLDING
1456 		&& oap->op_type != OP_FOLD
1457 		&& oap->op_type != OP_FOLDOPEN
1458 		&& oap->op_type != OP_FOLDOPENREC
1459 		&& oap->op_type != OP_FOLDCLOSE
1460 		&& oap->op_type != OP_FOLDCLOSEREC
1461 		&& oap->op_type != OP_FOLDDEL
1462 		&& oap->op_type != OP_FOLDDELREC
1463 #endif
1464 		)
1465 	{
1466 	    prep_redo(oap->regname, cap->count0,
1467 		    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1468 		    oap->motion_force, cap->cmdchar, cap->nchar);
1469 	    if (cap->cmdchar == '/' || cap->cmdchar == '?') /* was a search */
1470 	    {
1471 		/*
1472 		 * If 'cpoptions' does not contain 'r', insert the search
1473 		 * pattern to really repeat the same command.
1474 		 */
1475 		if (vim_strchr(p_cpo, CPO_REDO) == NULL)
1476 		    AppendToRedobuffLit(cap->searchbuf, -1);
1477 		AppendToRedobuff(NL_STR);
1478 	    }
1479 	    else if (cap->cmdchar == ':')
1480 	    {
1481 		/* do_cmdline() has stored the first typed line in
1482 		 * "repeat_cmdline".  When several lines are typed repeating
1483 		 * won't be possible. */
1484 		if (repeat_cmdline == NULL)
1485 		    ResetRedobuff();
1486 		else
1487 		{
1488 		    AppendToRedobuffLit(repeat_cmdline, -1);
1489 		    AppendToRedobuff(NL_STR);
1490 		    vim_free(repeat_cmdline);
1491 		    repeat_cmdline = NULL;
1492 		}
1493 	    }
1494 	}
1495 
1496 	if (redo_VIsual_busy)
1497 	{
1498 	    /* Redo of an operation on a Visual area. Use the same size from
1499 	     * redo_VIsual_line_count and redo_VIsual_vcol. */
1500 	    oap->start = curwin->w_cursor;
1501 	    curwin->w_cursor.lnum += redo_VIsual_line_count - 1;
1502 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1503 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1504 	    VIsual_mode = redo_VIsual_mode;
1505 	    if (redo_VIsual_vcol == MAXCOL || VIsual_mode == 'v')
1506 	    {
1507 		if (VIsual_mode == 'v')
1508 		{
1509 		    if (redo_VIsual_line_count <= 1)
1510 		    {
1511 			validate_virtcol();
1512 			curwin->w_curswant =
1513 				     curwin->w_virtcol + redo_VIsual_vcol - 1;
1514 		    }
1515 		    else
1516 			curwin->w_curswant = redo_VIsual_vcol;
1517 		}
1518 		else
1519 		{
1520 		    curwin->w_curswant = MAXCOL;
1521 		}
1522 		coladvance(curwin->w_curswant);
1523 	    }
1524 	    cap->count0 = redo_VIsual_count;
1525 	    if (redo_VIsual_count != 0)
1526 		cap->count1 = redo_VIsual_count;
1527 	    else
1528 		cap->count1 = 1;
1529 	}
1530 	else if (VIsual_active)
1531 	{
1532 	    if (!gui_yank)
1533 	    {
1534 		/* Save the current VIsual area for '< and '> marks, and "gv" */
1535 		curbuf->b_visual.vi_start = VIsual;
1536 		curbuf->b_visual.vi_end = curwin->w_cursor;
1537 		curbuf->b_visual.vi_mode = VIsual_mode;
1538 		if (VIsual_mode_orig != NUL)
1539 		{
1540 		    curbuf->b_visual.vi_mode = VIsual_mode_orig;
1541 		    VIsual_mode_orig = NUL;
1542 		}
1543 		curbuf->b_visual.vi_curswant = curwin->w_curswant;
1544 # ifdef FEAT_EVAL
1545 		curbuf->b_visual_mode_eval = VIsual_mode;
1546 # endif
1547 	    }
1548 
1549 	    /* In Select mode, a linewise selection is operated upon like a
1550 	     * characterwise selection.
1551 	     * Special case: gH<Del> deletes the last line. */
1552 	    if (VIsual_select && VIsual_mode == 'V'
1553 					    && cap->oap->op_type != OP_DELETE)
1554 	    {
1555 		if (lt(VIsual, curwin->w_cursor))
1556 		{
1557 		    VIsual.col = 0;
1558 		    curwin->w_cursor.col =
1559 			       (colnr_T)STRLEN(ml_get(curwin->w_cursor.lnum));
1560 		}
1561 		else
1562 		{
1563 		    curwin->w_cursor.col = 0;
1564 		    VIsual.col = (colnr_T)STRLEN(ml_get(VIsual.lnum));
1565 		}
1566 		VIsual_mode = 'v';
1567 	    }
1568 	    /* If 'selection' is "exclusive", backup one character for
1569 	     * charwise selections. */
1570 	    else if (VIsual_mode == 'v')
1571 	    {
1572 # ifdef FEAT_VIRTUALEDIT
1573 		include_line_break =
1574 # endif
1575 		    unadjust_for_sel();
1576 	    }
1577 
1578 	    oap->start = VIsual;
1579 	    if (VIsual_mode == 'V')
1580 		oap->start.col = 0;
1581 	}
1582 
1583 	/*
1584 	 * Set oap->start to the first position of the operated text, oap->end
1585 	 * to the end of the operated text.  w_cursor is equal to oap->start.
1586 	 */
1587 	if (lt(oap->start, curwin->w_cursor))
1588 	{
1589 #ifdef FEAT_FOLDING
1590 	    /* Include folded lines completely. */
1591 	    if (!VIsual_active)
1592 	    {
1593 		if (hasFolding(oap->start.lnum, &oap->start.lnum, NULL))
1594 		    oap->start.col = 0;
1595 		if (hasFolding(curwin->w_cursor.lnum, NULL,
1596 						      &curwin->w_cursor.lnum))
1597 		    curwin->w_cursor.col = (colnr_T)STRLEN(ml_get_curline());
1598 	    }
1599 #endif
1600 	    oap->end = curwin->w_cursor;
1601 	    curwin->w_cursor = oap->start;
1602 
1603 	    /* w_virtcol may have been updated; if the cursor goes back to its
1604 	     * previous position w_virtcol becomes invalid and isn't updated
1605 	     * automatically. */
1606 	    curwin->w_valid &= ~VALID_VIRTCOL;
1607 	}
1608 	else
1609 	{
1610 #ifdef FEAT_FOLDING
1611 	    /* Include folded lines completely. */
1612 	    if (!VIsual_active && oap->motion_type == MLINE)
1613 	    {
1614 		if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum,
1615 									NULL))
1616 		    curwin->w_cursor.col = 0;
1617 		if (hasFolding(oap->start.lnum, NULL, &oap->start.lnum))
1618 		    oap->start.col = (colnr_T)STRLEN(ml_get(oap->start.lnum));
1619 	    }
1620 #endif
1621 	    oap->end = oap->start;
1622 	    oap->start = curwin->w_cursor;
1623 	}
1624 
1625 	oap->line_count = oap->end.lnum - oap->start.lnum + 1;
1626 
1627 #ifdef FEAT_VIRTUALEDIT
1628 	/* Set "virtual_op" before resetting VIsual_active. */
1629 	virtual_op = virtual_active();
1630 #endif
1631 
1632 	if (VIsual_active || redo_VIsual_busy)
1633 	{
1634 	    if (VIsual_mode == Ctrl_V)	/* block mode */
1635 	    {
1636 		colnr_T	    start, end;
1637 
1638 		oap->block_mode = TRUE;
1639 
1640 		getvvcol(curwin, &(oap->start),
1641 				      &oap->start_vcol, NULL, &oap->end_vcol);
1642 		if (!redo_VIsual_busy)
1643 		{
1644 		    getvvcol(curwin, &(oap->end), &start, NULL, &end);
1645 
1646 		    if (start < oap->start_vcol)
1647 			oap->start_vcol = start;
1648 		    if (end > oap->end_vcol)
1649 		    {
1650 			if (*p_sel == 'e' && start >= 1
1651 						&& start - 1 >= oap->end_vcol)
1652 			    oap->end_vcol = start - 1;
1653 			else
1654 			    oap->end_vcol = end;
1655 		    }
1656 		}
1657 
1658 		/* if '$' was used, get oap->end_vcol from longest line */
1659 		if (curwin->w_curswant == MAXCOL)
1660 		{
1661 		    curwin->w_cursor.col = MAXCOL;
1662 		    oap->end_vcol = 0;
1663 		    for (curwin->w_cursor.lnum = oap->start.lnum;
1664 			    curwin->w_cursor.lnum <= oap->end.lnum;
1665 						      ++curwin->w_cursor.lnum)
1666 		    {
1667 			getvvcol(curwin, &curwin->w_cursor, NULL, NULL, &end);
1668 			if (end > oap->end_vcol)
1669 			    oap->end_vcol = end;
1670 		    }
1671 		}
1672 		else if (redo_VIsual_busy)
1673 		    oap->end_vcol = oap->start_vcol + redo_VIsual_vcol - 1;
1674 		/*
1675 		 * Correct oap->end.col and oap->start.col to be the
1676 		 * upper-left and lower-right corner of the block area.
1677 		 *
1678 		 * (Actually, this does convert column positions into character
1679 		 * positions)
1680 		 */
1681 		curwin->w_cursor.lnum = oap->end.lnum;
1682 		coladvance(oap->end_vcol);
1683 		oap->end = curwin->w_cursor;
1684 
1685 		curwin->w_cursor = oap->start;
1686 		coladvance(oap->start_vcol);
1687 		oap->start = curwin->w_cursor;
1688 	    }
1689 
1690 	    if (!redo_VIsual_busy && !gui_yank)
1691 	    {
1692 		/*
1693 		 * Prepare to reselect and redo Visual: this is based on the
1694 		 * size of the Visual text
1695 		 */
1696 		resel_VIsual_mode = VIsual_mode;
1697 		if (curwin->w_curswant == MAXCOL)
1698 		    resel_VIsual_vcol = MAXCOL;
1699 		else
1700 		{
1701 		    if (VIsual_mode != Ctrl_V)
1702 			getvvcol(curwin, &(oap->end),
1703 						  NULL, NULL, &oap->end_vcol);
1704 		    if (VIsual_mode == Ctrl_V || oap->line_count <= 1)
1705 		    {
1706 			if (VIsual_mode != Ctrl_V)
1707 			    getvvcol(curwin, &(oap->start),
1708 						&oap->start_vcol, NULL, NULL);
1709 			resel_VIsual_vcol = oap->end_vcol - oap->start_vcol + 1;
1710 		    }
1711 		    else
1712 			resel_VIsual_vcol = oap->end_vcol;
1713 		}
1714 		resel_VIsual_line_count = oap->line_count;
1715 	    }
1716 
1717 	    /* can't redo yank (unless 'y' is in 'cpoptions') and ":" */
1718 	    if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1719 		    && oap->op_type != OP_COLON
1720 #ifdef FEAT_FOLDING
1721 		    && oap->op_type != OP_FOLD
1722 		    && oap->op_type != OP_FOLDOPEN
1723 		    && oap->op_type != OP_FOLDOPENREC
1724 		    && oap->op_type != OP_FOLDCLOSE
1725 		    && oap->op_type != OP_FOLDCLOSEREC
1726 		    && oap->op_type != OP_FOLDDEL
1727 		    && oap->op_type != OP_FOLDDELREC
1728 #endif
1729 		    && oap->motion_force == NUL
1730 		    )
1731 	    {
1732 		/* Prepare for redoing.  Only use the nchar field for "r",
1733 		 * otherwise it might be the second char of the operator. */
1734 		if (cap->cmdchar == 'g' && (cap->nchar == 'n'
1735 							|| cap->nchar == 'N'))
1736 		    prep_redo(oap->regname, cap->count0,
1737 			    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1738 			    oap->motion_force, cap->cmdchar, cap->nchar);
1739 		else if (cap->cmdchar != ':')
1740 		    prep_redo(oap->regname, 0L, NUL, 'v',
1741 					get_op_char(oap->op_type),
1742 					get_extra_op_char(oap->op_type),
1743 					oap->op_type == OP_REPLACE
1744 							  ? cap->nchar : NUL);
1745 		if (!redo_VIsual_busy)
1746 		{
1747 		    redo_VIsual_mode = resel_VIsual_mode;
1748 		    redo_VIsual_vcol = resel_VIsual_vcol;
1749 		    redo_VIsual_line_count = resel_VIsual_line_count;
1750 		    redo_VIsual_count = cap->count0;
1751 		}
1752 	    }
1753 
1754 	    /*
1755 	     * oap->inclusive defaults to TRUE.
1756 	     * If oap->end is on a NUL (empty line) oap->inclusive becomes
1757 	     * FALSE.  This makes "d}P" and "v}dP" work the same.
1758 	     */
1759 	    if (oap->motion_force == NUL || oap->motion_type == MLINE)
1760 		oap->inclusive = TRUE;
1761 	    if (VIsual_mode == 'V')
1762 		oap->motion_type = MLINE;
1763 	    else
1764 	    {
1765 		oap->motion_type = MCHAR;
1766 		if (VIsual_mode != Ctrl_V && *ml_get_pos(&(oap->end)) == NUL
1767 #ifdef FEAT_VIRTUALEDIT
1768 			&& (include_line_break || !virtual_op)
1769 #endif
1770 			)
1771 		{
1772 		    oap->inclusive = FALSE;
1773 		    /* Try to include the newline, unless it's an operator
1774 		     * that works on lines only. */
1775 		    if (*p_sel != 'o'
1776 			    && !op_on_lines(oap->op_type)
1777 			    && oap->end.lnum < curbuf->b_ml.ml_line_count)
1778 		    {
1779 			++oap->end.lnum;
1780 			oap->end.col = 0;
1781 #ifdef FEAT_VIRTUALEDIT
1782 			oap->end.coladd = 0;
1783 #endif
1784 			++oap->line_count;
1785 		    }
1786 		}
1787 	    }
1788 
1789 	    redo_VIsual_busy = FALSE;
1790 
1791 	    /*
1792 	     * Switch Visual off now, so screen updating does
1793 	     * not show inverted text when the screen is redrawn.
1794 	     * With OP_YANK and sometimes with OP_COLON and OP_FILTER there is
1795 	     * no screen redraw, so it is done here to remove the inverted
1796 	     * part.
1797 	     */
1798 	    if (!gui_yank)
1799 	    {
1800 		VIsual_active = FALSE;
1801 #ifdef FEAT_MOUSE
1802 		setmouse();
1803 		mouse_dragging = 0;
1804 #endif
1805 		if (mode_displayed)
1806 		    clear_cmdline = TRUE;   /* unshow visual mode later */
1807 #ifdef FEAT_CMDL_INFO
1808 		else
1809 		    clear_showcmd();
1810 #endif
1811 		if ((oap->op_type == OP_YANK
1812 			    || oap->op_type == OP_COLON
1813 			    || oap->op_type == OP_FUNCTION
1814 			    || oap->op_type == OP_FILTER)
1815 			&& oap->motion_force == NUL)
1816 		{
1817 #ifdef FEAT_LINEBREAK
1818 		    /* make sure redrawing is correct */
1819 		    curwin->w_p_lbr = lbr_saved;
1820 #endif
1821 		    redraw_curbuf_later(INVERTED);
1822 		}
1823 	    }
1824 	}
1825 
1826 #ifdef FEAT_MBYTE
1827 	/* Include the trailing byte of a multi-byte char. */
1828 	if (has_mbyte && oap->inclusive)
1829 	{
1830 	    int		l;
1831 
1832 	    l = (*mb_ptr2len)(ml_get_pos(&oap->end));
1833 	    if (l > 1)
1834 		oap->end.col += l - 1;
1835 	}
1836 #endif
1837 	curwin->w_set_curswant = TRUE;
1838 
1839 	/*
1840 	 * oap->empty is set when start and end are the same.  The inclusive
1841 	 * flag affects this too, unless yanking and the end is on a NUL.
1842 	 */
1843 	oap->empty = (oap->motion_type == MCHAR
1844 		    && (!oap->inclusive
1845 			|| (oap->op_type == OP_YANK
1846 			    && gchar_pos(&oap->end) == NUL))
1847 		    && equalpos(oap->start, oap->end)
1848 #ifdef FEAT_VIRTUALEDIT
1849 		    && !(virtual_op && oap->start.coladd != oap->end.coladd)
1850 #endif
1851 		    );
1852 	/*
1853 	 * For delete, change and yank, it's an error to operate on an
1854 	 * empty region, when 'E' included in 'cpoptions' (Vi compatible).
1855 	 */
1856 	empty_region_error = (oap->empty
1857 				&& vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL);
1858 
1859 	/* Force a redraw when operating on an empty Visual region, when
1860 	 * 'modifiable is off or creating a fold. */
1861 	if (oap->is_VIsual && (oap->empty || !curbuf->b_p_ma
1862 #ifdef FEAT_FOLDING
1863 		    || oap->op_type == OP_FOLD
1864 #endif
1865 		    ))
1866 	{
1867 #ifdef FEAT_LINEBREAK
1868 	    curwin->w_p_lbr = lbr_saved;
1869 #endif
1870 	    redraw_curbuf_later(INVERTED);
1871 	}
1872 
1873 	/*
1874 	 * If the end of an operator is in column one while oap->motion_type
1875 	 * is MCHAR and oap->inclusive is FALSE, we put op_end after the last
1876 	 * character in the previous line. If op_start is on or before the
1877 	 * first non-blank in the line, the operator becomes linewise
1878 	 * (strange, but that's the way vi does it).
1879 	 */
1880 	if (	   oap->motion_type == MCHAR
1881 		&& oap->inclusive == FALSE
1882 		&& !(cap->retval & CA_NO_ADJ_OP_END)
1883 		&& oap->end.col == 0
1884 		&& (!oap->is_VIsual || *p_sel == 'o')
1885 		&& !oap->block_mode
1886 		&& oap->line_count > 1)
1887 	{
1888 	    oap->end_adjusted = TRUE;	    /* remember that we did this */
1889 	    --oap->line_count;
1890 	    --oap->end.lnum;
1891 	    if (inindent(0))
1892 		oap->motion_type = MLINE;
1893 	    else
1894 	    {
1895 		oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
1896 		if (oap->end.col)
1897 		{
1898 		    --oap->end.col;
1899 		    oap->inclusive = TRUE;
1900 		}
1901 	    }
1902 	}
1903 	else
1904 	    oap->end_adjusted = FALSE;
1905 
1906 	switch (oap->op_type)
1907 	{
1908 	case OP_LSHIFT:
1909 	case OP_RSHIFT:
1910 	    op_shift(oap, TRUE, oap->is_VIsual ? (int)cap->count1 : 1);
1911 	    auto_format(FALSE, TRUE);
1912 	    break;
1913 
1914 	case OP_JOIN_NS:
1915 	case OP_JOIN:
1916 	    if (oap->line_count < 2)
1917 		oap->line_count = 2;
1918 	    if (curwin->w_cursor.lnum + oap->line_count - 1 >
1919 						   curbuf->b_ml.ml_line_count)
1920 		beep_flush();
1921 	    else
1922 	    {
1923 		(void)do_join(oap->line_count, oap->op_type == OP_JOIN,
1924 							    TRUE, TRUE, TRUE);
1925 		auto_format(FALSE, TRUE);
1926 	    }
1927 	    break;
1928 
1929 	case OP_DELETE:
1930 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1931 	    if (empty_region_error)
1932 	    {
1933 		vim_beep();
1934 		CancelRedo();
1935 	    }
1936 	    else
1937 	    {
1938 		(void)op_delete(oap);
1939 		if (oap->motion_type == MLINE && has_format_option(FO_AUTO))
1940 		    u_save_cursor();	    /* cursor line wasn't saved yet */
1941 		auto_format(FALSE, TRUE);
1942 	    }
1943 	    break;
1944 
1945 	case OP_YANK:
1946 	    if (empty_region_error)
1947 	    {
1948 		if (!gui_yank)
1949 		{
1950 		    vim_beep();
1951 		    CancelRedo();
1952 		}
1953 	    }
1954 	    else
1955 	    {
1956 #ifdef FEAT_LINEBREAK
1957 		curwin->w_p_lbr = lbr_saved;
1958 #endif
1959 		(void)op_yank(oap, FALSE, !gui_yank);
1960 	    }
1961 	    check_cursor_col();
1962 	    break;
1963 
1964 	case OP_CHANGE:
1965 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1966 	    if (empty_region_error)
1967 	    {
1968 		vim_beep();
1969 		CancelRedo();
1970 	    }
1971 	    else
1972 	    {
1973 		/* This is a new edit command, not a restart.  Need to
1974 		 * remember it to make 'insertmode' work with mappings for
1975 		 * Visual mode.  But do this only once and not when typed and
1976 		 * 'insertmode' isn't set. */
1977 		if (p_im || !KeyTyped)
1978 		    restart_edit_save = restart_edit;
1979 		else
1980 		    restart_edit_save = 0;
1981 		restart_edit = 0;
1982 #ifdef FEAT_LINEBREAK
1983 		/* Restore linebreak, so that when the user edits it looks as
1984 		 * before. */
1985 		curwin->w_p_lbr = lbr_saved;
1986 #endif
1987 		/* Reset finish_op now, don't want it set inside edit(). */
1988 		finish_op = FALSE;
1989 		if (op_change(oap))	/* will call edit() */
1990 		    cap->retval |= CA_COMMAND_BUSY;
1991 		if (restart_edit == 0)
1992 		    restart_edit = restart_edit_save;
1993 	    }
1994 	    break;
1995 
1996 	case OP_FILTER:
1997 	    if (vim_strchr(p_cpo, CPO_FILTER) != NULL)
1998 		AppendToRedobuff((char_u *)"!\r");  /* use any last used !cmd */
1999 	    else
2000 		bangredo = TRUE;    /* do_bang() will put cmd in redo buffer */
2001 
2002 	case OP_INDENT:
2003 	case OP_COLON:
2004 
2005 #if defined(FEAT_LISP) || defined(FEAT_CINDENT)
2006 	    /*
2007 	     * If 'equalprg' is empty, do the indenting internally.
2008 	     */
2009 	    if (oap->op_type == OP_INDENT && *get_equalprg() == NUL)
2010 	    {
2011 # ifdef FEAT_LISP
2012 		if (curbuf->b_p_lisp)
2013 		{
2014 		    op_reindent(oap, get_lisp_indent);
2015 		    break;
2016 		}
2017 # endif
2018 # ifdef FEAT_CINDENT
2019 		op_reindent(oap,
2020 #  ifdef FEAT_EVAL
2021 			*curbuf->b_p_inde != NUL ? get_expr_indent :
2022 #  endif
2023 			    get_c_indent);
2024 		break;
2025 # endif
2026 	    }
2027 #endif
2028 
2029 	    op_colon(oap);
2030 	    break;
2031 
2032 	case OP_TILDE:
2033 	case OP_UPPER:
2034 	case OP_LOWER:
2035 	case OP_ROT13:
2036 	    if (empty_region_error)
2037 	    {
2038 		vim_beep();
2039 		CancelRedo();
2040 	    }
2041 	    else
2042 		op_tilde(oap);
2043 	    check_cursor_col();
2044 	    break;
2045 
2046 	case OP_FORMAT:
2047 #if defined(FEAT_EVAL)
2048 	    if (*curbuf->b_p_fex != NUL)
2049 		op_formatexpr(oap);	/* use expression */
2050 	    else
2051 #endif
2052 		if (*p_fp != NUL)
2053 		op_colon(oap);		/* use external command */
2054 	    else
2055 		op_format(oap, FALSE);	/* use internal function */
2056 	    break;
2057 
2058 	case OP_FORMAT2:
2059 	    op_format(oap, TRUE);	/* use internal function */
2060 	    break;
2061 
2062 	case OP_FUNCTION:
2063 	    op_function(oap);		/* call 'operatorfunc' */
2064 	    break;
2065 
2066 	case OP_INSERT:
2067 	case OP_APPEND:
2068 	    VIsual_reselect = FALSE;	/* don't reselect now */
2069 #ifdef FEAT_VISUALEXTRA
2070 	    if (empty_region_error)
2071 	    {
2072 		vim_beep();
2073 		CancelRedo();
2074 	    }
2075 	    else
2076 	    {
2077 		/* This is a new edit command, not a restart.  Need to
2078 		 * remember it to make 'insertmode' work with mappings for
2079 		 * Visual mode.  But do this only once. */
2080 		restart_edit_save = restart_edit;
2081 		restart_edit = 0;
2082 #ifdef FEAT_LINEBREAK
2083 		/* Restore linebreak, so that when the user edits it looks as
2084 		 * before. */
2085 		curwin->w_p_lbr = lbr_saved;
2086 #endif
2087 		op_insert(oap, cap->count1);
2088 #ifdef FEAT_LINEBREAK
2089 		/* Reset linebreak, so that formatting works correctly. */
2090 		curwin->w_p_lbr = FALSE;
2091 #endif
2092 
2093 		/* TODO: when inserting in several lines, should format all
2094 		 * the lines. */
2095 		auto_format(FALSE, TRUE);
2096 
2097 		if (restart_edit == 0)
2098 		    restart_edit = restart_edit_save;
2099 	    }
2100 #else
2101 	    vim_beep();
2102 #endif
2103 	    break;
2104 
2105 	case OP_REPLACE:
2106 	    VIsual_reselect = FALSE;	/* don't reselect now */
2107 #ifdef FEAT_VISUALEXTRA
2108 	    if (empty_region_error)
2109 #endif
2110 	    {
2111 		vim_beep();
2112 		CancelRedo();
2113 	    }
2114 #ifdef FEAT_VISUALEXTRA
2115 	    else
2116 	    {
2117 #ifdef FEAT_LINEBREAK
2118 		/* Restore linebreak, so that when the user edits it looks as
2119 		 * before. */
2120 		curwin->w_p_lbr = lbr_saved;
2121 #endif
2122 		op_replace(oap, cap->nchar);
2123 	    }
2124 #endif
2125 	    break;
2126 
2127 #ifdef FEAT_FOLDING
2128 	case OP_FOLD:
2129 	    VIsual_reselect = FALSE;	/* don't reselect now */
2130 	    foldCreate(oap->start.lnum, oap->end.lnum);
2131 	    break;
2132 
2133 	case OP_FOLDOPEN:
2134 	case OP_FOLDOPENREC:
2135 	case OP_FOLDCLOSE:
2136 	case OP_FOLDCLOSEREC:
2137 	    VIsual_reselect = FALSE;	/* don't reselect now */
2138 	    opFoldRange(oap->start.lnum, oap->end.lnum,
2139 		    oap->op_type == OP_FOLDOPEN
2140 					    || oap->op_type == OP_FOLDOPENREC,
2141 		    oap->op_type == OP_FOLDOPENREC
2142 					  || oap->op_type == OP_FOLDCLOSEREC,
2143 					  oap->is_VIsual);
2144 	    break;
2145 
2146 	case OP_FOLDDEL:
2147 	case OP_FOLDDELREC:
2148 	    VIsual_reselect = FALSE;	/* don't reselect now */
2149 	    deleteFold(oap->start.lnum, oap->end.lnum,
2150 			       oap->op_type == OP_FOLDDELREC, oap->is_VIsual);
2151 	    break;
2152 #endif
2153 	default:
2154 	    clearopbeep(oap);
2155 	}
2156 #ifdef FEAT_VIRTUALEDIT
2157 	virtual_op = MAYBE;
2158 #endif
2159 	if (!gui_yank)
2160 	{
2161 	    /*
2162 	     * if 'sol' not set, go back to old column for some commands
2163 	     */
2164 	    if (!p_sol && oap->motion_type == MLINE && !oap->end_adjusted
2165 		    && (oap->op_type == OP_LSHIFT || oap->op_type == OP_RSHIFT
2166 						|| oap->op_type == OP_DELETE))
2167 	    {
2168 #ifdef FEAT_LINEBREAK
2169 		curwin->w_p_lbr = FALSE;
2170 #endif
2171 		coladvance(curwin->w_curswant = old_col);
2172 	    }
2173 	}
2174 	else
2175 	{
2176 	    curwin->w_cursor = old_cursor;
2177 	}
2178 	oap->block_mode = FALSE;
2179 	clearop(oap);
2180     }
2181 #ifdef FEAT_LINEBREAK
2182     curwin->w_p_lbr = lbr_saved;
2183 #endif
2184 }
2185 
2186 /*
2187  * Handle indent and format operators and visual mode ":".
2188  */
2189     static void
2190 op_colon(oap)
2191     oparg_T	*oap;
2192 {
2193     stuffcharReadbuff(':');
2194     if (oap->is_VIsual)
2195 	stuffReadbuff((char_u *)"'<,'>");
2196     else
2197     {
2198 	/*
2199 	 * Make the range look nice, so it can be repeated.
2200 	 */
2201 	if (oap->start.lnum == curwin->w_cursor.lnum)
2202 	    stuffcharReadbuff('.');
2203 	else
2204 	    stuffnumReadbuff((long)oap->start.lnum);
2205 	if (oap->end.lnum != oap->start.lnum)
2206 	{
2207 	    stuffcharReadbuff(',');
2208 	    if (oap->end.lnum == curwin->w_cursor.lnum)
2209 		stuffcharReadbuff('.');
2210 	    else if (oap->end.lnum == curbuf->b_ml.ml_line_count)
2211 		stuffcharReadbuff('$');
2212 	    else if (oap->start.lnum == curwin->w_cursor.lnum)
2213 	    {
2214 		stuffReadbuff((char_u *)".+");
2215 		stuffnumReadbuff((long)oap->line_count - 1);
2216 	    }
2217 	    else
2218 		stuffnumReadbuff((long)oap->end.lnum);
2219 	}
2220     }
2221     if (oap->op_type != OP_COLON)
2222 	stuffReadbuff((char_u *)"!");
2223     if (oap->op_type == OP_INDENT)
2224     {
2225 #ifndef FEAT_CINDENT
2226 	if (*get_equalprg() == NUL)
2227 	    stuffReadbuff((char_u *)"indent");
2228 	else
2229 #endif
2230 	    stuffReadbuff(get_equalprg());
2231 	stuffReadbuff((char_u *)"\n");
2232     }
2233     else if (oap->op_type == OP_FORMAT)
2234     {
2235 	if (*p_fp == NUL)
2236 	    stuffReadbuff((char_u *)"fmt");
2237 	else
2238 	    stuffReadbuff(p_fp);
2239 	stuffReadbuff((char_u *)"\n']");
2240     }
2241 
2242     /*
2243      * do_cmdline() does the rest
2244      */
2245 }
2246 
2247 /*
2248  * Handle the "g@" operator: call 'operatorfunc'.
2249  */
2250     static void
2251 op_function(oap)
2252     oparg_T	*oap UNUSED;
2253 {
2254 #ifdef FEAT_EVAL
2255     char_u	*(argv[1]);
2256 # ifdef FEAT_VIRTUALEDIT
2257     int		save_virtual_op = virtual_op;
2258 # endif
2259 
2260     if (*p_opfunc == NUL)
2261 	EMSG(_("E774: 'operatorfunc' is empty"));
2262     else
2263     {
2264 	/* Set '[ and '] marks to text to be operated on. */
2265 	curbuf->b_op_start = oap->start;
2266 	curbuf->b_op_end = oap->end;
2267 	if (oap->motion_type != MLINE && !oap->inclusive)
2268 	    /* Exclude the end position. */
2269 	    decl(&curbuf->b_op_end);
2270 
2271 	if (oap->block_mode)
2272 	    argv[0] = (char_u *)"block";
2273 	else if (oap->motion_type == MLINE)
2274 	    argv[0] = (char_u *)"line";
2275 	else
2276 	    argv[0] = (char_u *)"char";
2277 
2278 # ifdef FEAT_VIRTUALEDIT
2279 	/* Reset virtual_op so that 'virtualedit' can be changed in the
2280 	 * function. */
2281 	virtual_op = MAYBE;
2282 # endif
2283 
2284 	(void)call_func_retnr(p_opfunc, 1, argv, FALSE);
2285 
2286 # ifdef FEAT_VIRTUALEDIT
2287 	virtual_op = save_virtual_op;
2288 # endif
2289     }
2290 #else
2291     EMSG(_("E775: Eval feature not available"));
2292 #endif
2293 }
2294 
2295 #if defined(FEAT_MOUSE) || defined(PROTO)
2296 /*
2297  * Do the appropriate action for the current mouse click in the current mode.
2298  * Not used for Command-line mode.
2299  *
2300  * Normal Mode:
2301  * event	 modi-	position      visual	   change   action
2302  *		 fier	cursor			   window
2303  * left press	  -	yes	    end		    yes
2304  * left press	  C	yes	    end		    yes	    "^]" (2)
2305  * left press	  S	yes	    end		    yes	    "*" (2)
2306  * left drag	  -	yes	start if moved	    no
2307  * left relse	  -	yes	start if moved	    no
2308  * middle press	  -	yes	 if not active	    no	    put register
2309  * middle press	  -	yes	 if active	    no	    yank and put
2310  * right press	  -	yes	start or extend	    yes
2311  * right press	  S	yes	no change	    yes	    "#" (2)
2312  * right drag	  -	yes	extend		    no
2313  * right relse	  -	yes	extend		    no
2314  *
2315  * Insert or Replace Mode:
2316  * event	 modi-	position      visual	   change   action
2317  *		 fier	cursor			   window
2318  * left press	  -	yes	(cannot be active)  yes
2319  * left press	  C	yes	(cannot be active)  yes	    "CTRL-O^]" (2)
2320  * left press	  S	yes	(cannot be active)  yes	    "CTRL-O*" (2)
2321  * left drag	  -	yes	start or extend (1) no	    CTRL-O (1)
2322  * left relse	  -	yes	start or extend (1) no	    CTRL-O (1)
2323  * middle press	  -	no	(cannot be active)  no	    put register
2324  * right press	  -	yes	start or extend	    yes	    CTRL-O
2325  * right press	  S	yes	(cannot be active)  yes	    "CTRL-O#" (2)
2326  *
2327  * (1) only if mouse pointer moved since press
2328  * (2) only if click is in same buffer
2329  *
2330  * Return TRUE if start_arrow() should be called for edit mode.
2331  */
2332     int
2333 do_mouse(oap, c, dir, count, fixindent)
2334     oparg_T	*oap;		/* operator argument, can be NULL */
2335     int		c;		/* K_LEFTMOUSE, etc */
2336     int		dir;		/* Direction to 'put' if necessary */
2337     long	count;
2338     int		fixindent;	/* PUT_FIXINDENT if fixing indent necessary */
2339 {
2340     static int	do_always = FALSE;	/* ignore 'mouse' setting next time */
2341     static int	got_click = FALSE;	/* got a click some time back */
2342 
2343     int		which_button;	/* MOUSE_LEFT, _MIDDLE or _RIGHT */
2344     int		is_click;	/* If FALSE it's a drag or release event */
2345     int		is_drag;	/* If TRUE it's a drag event */
2346     int		jump_flags = 0;	/* flags for jump_to_mouse() */
2347     pos_T	start_visual;
2348     int		moved;		/* Has cursor moved? */
2349     int		in_status_line;	/* mouse in status line */
2350 #ifdef FEAT_WINDOWS
2351     static int	in_tab_line = FALSE; /* mouse clicked in tab line */
2352 #endif
2353 #ifdef FEAT_VERTSPLIT
2354     int		in_sep_line;	/* mouse in vertical separator line */
2355 #endif
2356     int		c1, c2;
2357 #if defined(FEAT_FOLDING)
2358     pos_T	save_cursor;
2359 #endif
2360     win_T	*old_curwin = curwin;
2361     static pos_T orig_cursor;
2362     colnr_T	leftcol, rightcol;
2363     pos_T	end_visual;
2364     int		diff;
2365     int		old_active = VIsual_active;
2366     int		old_mode = VIsual_mode;
2367     int		regname;
2368 
2369 #if defined(FEAT_FOLDING)
2370     save_cursor = curwin->w_cursor;
2371 #endif
2372 
2373     /*
2374      * When GUI is active, always recognize mouse events, otherwise:
2375      * - Ignore mouse event in normal mode if 'mouse' doesn't include 'n'.
2376      * - Ignore mouse event in visual mode if 'mouse' doesn't include 'v'.
2377      * - For command line and insert mode 'mouse' is checked before calling
2378      *	 do_mouse().
2379      */
2380     if (do_always)
2381 	do_always = FALSE;
2382     else
2383 #ifdef FEAT_GUI
2384 	if (!gui.in_use)
2385 #endif
2386 	{
2387 	    if (VIsual_active)
2388 	    {
2389 		if (!mouse_has(MOUSE_VISUAL))
2390 		    return FALSE;
2391 	    }
2392 	    else if (State == NORMAL && !mouse_has(MOUSE_NORMAL))
2393 		return FALSE;
2394 	}
2395 
2396     for (;;)
2397     {
2398 	which_button = get_mouse_button(KEY2TERMCAP1(c), &is_click, &is_drag);
2399 	if (is_drag)
2400 	{
2401 	    /* If the next character is the same mouse event then use that
2402 	     * one. Speeds up dragging the status line. */
2403 	    if (vpeekc() != NUL)
2404 	    {
2405 		int nc;
2406 		int save_mouse_row = mouse_row;
2407 		int save_mouse_col = mouse_col;
2408 
2409 		/* Need to get the character, peeking doesn't get the actual
2410 		 * one. */
2411 		nc = safe_vgetc();
2412 		if (c == nc)
2413 		    continue;
2414 		vungetc(nc);
2415 		mouse_row = save_mouse_row;
2416 		mouse_col = save_mouse_col;
2417 	    }
2418 	}
2419 	break;
2420     }
2421 
2422 #ifdef FEAT_MOUSESHAPE
2423     /* May have stopped dragging the status or separator line.  The pointer is
2424      * most likely still on the status or separator line. */
2425     if (!is_drag && drag_status_line)
2426     {
2427 	drag_status_line = FALSE;
2428 	update_mouseshape(SHAPE_IDX_STATUS);
2429     }
2430 # ifdef FEAT_VERTSPLIT
2431     if (!is_drag && drag_sep_line)
2432     {
2433 	drag_sep_line = FALSE;
2434 	update_mouseshape(SHAPE_IDX_VSEP);
2435     }
2436 # endif
2437 #endif
2438 
2439     /*
2440      * Ignore drag and release events if we didn't get a click.
2441      */
2442     if (is_click)
2443 	got_click = TRUE;
2444     else
2445     {
2446 	if (!got_click)			/* didn't get click, ignore */
2447 	    return FALSE;
2448 	if (!is_drag)			/* release, reset got_click */
2449 	{
2450 	    got_click = FALSE;
2451 #ifdef FEAT_WINDOWS
2452 	    if (in_tab_line)
2453 	    {
2454 		in_tab_line = FALSE;
2455 		return FALSE;
2456 	    }
2457 #endif
2458 	}
2459     }
2460 
2461     /*
2462      * CTRL right mouse button does CTRL-T
2463      */
2464     if (is_click && (mod_mask & MOD_MASK_CTRL) && which_button == MOUSE_RIGHT)
2465     {
2466 	if (State & INSERT)
2467 	    stuffcharReadbuff(Ctrl_O);
2468 	if (count > 1)
2469 	    stuffnumReadbuff(count);
2470 	stuffcharReadbuff(Ctrl_T);
2471 	got_click = FALSE;		/* ignore drag&release now */
2472 	return FALSE;
2473     }
2474 
2475     /*
2476      * CTRL only works with left mouse button
2477      */
2478     if ((mod_mask & MOD_MASK_CTRL) && which_button != MOUSE_LEFT)
2479 	return FALSE;
2480 
2481     /*
2482      * When a modifier is down, ignore drag and release events, as well as
2483      * multiple clicks and the middle mouse button.
2484      * Accept shift-leftmouse drags when 'mousemodel' is "popup.*".
2485      */
2486     if ((mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL | MOD_MASK_ALT
2487 							     | MOD_MASK_META))
2488 	    && (!is_click
2489 		|| (mod_mask & MOD_MASK_MULTI_CLICK)
2490 		|| which_button == MOUSE_MIDDLE)
2491 	    && !((mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT))
2492 		&& mouse_model_popup()
2493 		&& which_button == MOUSE_LEFT)
2494 	    && !((mod_mask & MOD_MASK_ALT)
2495 		&& !mouse_model_popup()
2496 		&& which_button == MOUSE_RIGHT)
2497 	    )
2498 	return FALSE;
2499 
2500     /*
2501      * If the button press was used as the movement command for an operator
2502      * (eg "d<MOUSE>"), or it is the middle button that is held down, ignore
2503      * drag/release events.
2504      */
2505     if (!is_click && which_button == MOUSE_MIDDLE)
2506 	return FALSE;
2507 
2508     if (oap != NULL)
2509 	regname = oap->regname;
2510     else
2511 	regname = 0;
2512 
2513     /*
2514      * Middle mouse button does a 'put' of the selected text
2515      */
2516     if (which_button == MOUSE_MIDDLE)
2517     {
2518 	if (State == NORMAL)
2519 	{
2520 	    /*
2521 	     * If an operator was pending, we don't know what the user wanted
2522 	     * to do. Go back to normal mode: Clear the operator and beep().
2523 	     */
2524 	    if (oap != NULL && oap->op_type != OP_NOP)
2525 	    {
2526 		clearopbeep(oap);
2527 		return FALSE;
2528 	    }
2529 
2530 	    /*
2531 	     * If visual was active, yank the highlighted text and put it
2532 	     * before the mouse pointer position.
2533 	     * In Select mode replace the highlighted text with the clipboard.
2534 	     */
2535 	    if (VIsual_active)
2536 	    {
2537 		if (VIsual_select)
2538 		{
2539 		    stuffcharReadbuff(Ctrl_G);
2540 		    stuffReadbuff((char_u *)"\"+p");
2541 		}
2542 		else
2543 		{
2544 		    stuffcharReadbuff('y');
2545 		    stuffcharReadbuff(K_MIDDLEMOUSE);
2546 		}
2547 		do_always = TRUE;	/* ignore 'mouse' setting next time */
2548 		return FALSE;
2549 	    }
2550 	    /*
2551 	     * The rest is below jump_to_mouse()
2552 	     */
2553 	}
2554 
2555 	else if ((State & INSERT) == 0)
2556 	    return FALSE;
2557 
2558 	/*
2559 	 * Middle click in insert mode doesn't move the mouse, just insert the
2560 	 * contents of a register.  '.' register is special, can't insert that
2561 	 * with do_put().
2562 	 * Also paste at the cursor if the current mode isn't in 'mouse' (only
2563 	 * happens for the GUI).
2564 	 */
2565 	if ((State & INSERT) || !mouse_has(MOUSE_NORMAL))
2566 	{
2567 	    if (regname == '.')
2568 		insert_reg(regname, TRUE);
2569 	    else
2570 	    {
2571 #ifdef FEAT_CLIPBOARD
2572 		if (clip_star.available && regname == 0)
2573 		    regname = '*';
2574 #endif
2575 		if ((State & REPLACE_FLAG) && !yank_register_mline(regname))
2576 		    insert_reg(regname, TRUE);
2577 		else
2578 		{
2579 		    do_put(regname, BACKWARD, 1L, fixindent | PUT_CURSEND);
2580 
2581 		    /* Repeat it with CTRL-R CTRL-O r or CTRL-R CTRL-P r */
2582 		    AppendCharToRedobuff(Ctrl_R);
2583 		    AppendCharToRedobuff(fixindent ? Ctrl_P : Ctrl_O);
2584 		    AppendCharToRedobuff(regname == 0 ? '"' : regname);
2585 		}
2586 	    }
2587 	    return FALSE;
2588 	}
2589     }
2590 
2591     /* When dragging or button-up stay in the same window. */
2592     if (!is_click)
2593 	jump_flags |= MOUSE_FOCUS | MOUSE_DID_MOVE;
2594 
2595     start_visual.lnum = 0;
2596 
2597 #ifdef FEAT_WINDOWS
2598     /* Check for clicking in the tab page line. */
2599     if (mouse_row == 0 && firstwin->w_winrow > 0)
2600     {
2601 	if (is_drag)
2602 	{
2603 	    if (in_tab_line)
2604 	    {
2605 		c1 = TabPageIdxs[mouse_col];
2606 		tabpage_move(c1 <= 0 ? 9999 : c1 - 1);
2607 	    }
2608 	    return FALSE;
2609 	}
2610 
2611 	/* click in a tab selects that tab page */
2612 	if (is_click
2613 # ifdef FEAT_CMDWIN
2614 		&& cmdwin_type == 0
2615 # endif
2616 		&& mouse_col < Columns)
2617 	{
2618 	    in_tab_line = TRUE;
2619 	    c1 = TabPageIdxs[mouse_col];
2620 	    if (c1 >= 0)
2621 	    {
2622 		if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2623 		{
2624 		    /* double click opens new page */
2625 		    end_visual_mode();
2626 		    tabpage_new();
2627 		    tabpage_move(c1 == 0 ? 9999 : c1 - 1);
2628 		}
2629 		else
2630 		{
2631 		    /* Go to specified tab page, or next one if not clicking
2632 		     * on a label. */
2633 		    goto_tabpage(c1);
2634 
2635 		    /* It's like clicking on the status line of a window. */
2636 		    if (curwin != old_curwin)
2637 			end_visual_mode();
2638 		}
2639 	    }
2640 	    else if (c1 < 0)
2641 	    {
2642 		tabpage_T	*tp;
2643 
2644 		/* Close the current or specified tab page. */
2645 		if (c1 == -999)
2646 		    tp = curtab;
2647 		else
2648 		    tp = find_tabpage(-c1);
2649 		if (tp == curtab)
2650 		{
2651 		    if (first_tabpage->tp_next != NULL)
2652 			tabpage_close(FALSE);
2653 		}
2654 		else if (tp != NULL)
2655 		    tabpage_close_other(tp, FALSE);
2656 	    }
2657 	}
2658 	return TRUE;
2659     }
2660     else if (is_drag && in_tab_line)
2661     {
2662 	c1 = TabPageIdxs[mouse_col];
2663 	tabpage_move(c1 <= 0 ? 9999 : c1 - 1);
2664 	return FALSE;
2665     }
2666 
2667 #endif
2668 
2669     /*
2670      * When 'mousemodel' is "popup" or "popup_setpos", translate mouse events:
2671      * right button up   -> pop-up menu
2672      * shift-left button -> right button
2673      * alt-left button   -> alt-right button
2674      */
2675     if (mouse_model_popup())
2676     {
2677 	if (which_button == MOUSE_RIGHT
2678 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2679 	{
2680 	    /*
2681 	     * NOTE: Ignore right button down and drag mouse events.
2682 	     * Windows only shows the popup menu on the button up event.
2683 	     */
2684 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) \
2685 			  || defined(FEAT_GUI_PHOTON) || defined(FEAT_GUI_MAC)
2686 	    if (!is_click)
2687 		return FALSE;
2688 #endif
2689 #if defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN)
2690 	    if (is_click || is_drag)
2691 		return FALSE;
2692 #endif
2693 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) \
2694 	    || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \
2695 	    || defined(FEAT_GUI_MAC) || defined(FEAT_GUI_PHOTON)
2696 	    if (gui.in_use)
2697 	    {
2698 		jump_flags = 0;
2699 		if (STRCMP(p_mousem, "popup_setpos") == 0)
2700 		{
2701 		    /* First set the cursor position before showing the popup
2702 		     * menu. */
2703 		    if (VIsual_active)
2704 		    {
2705 			pos_T    m_pos;
2706 
2707 			/*
2708 			 * set MOUSE_MAY_STOP_VIS if we are outside the
2709 			 * selection or the current window (might have false
2710 			 * negative here)
2711 			 */
2712 			if (mouse_row < W_WINROW(curwin)
2713 			     || mouse_row
2714 				      > (W_WINROW(curwin) + curwin->w_height))
2715 			    jump_flags = MOUSE_MAY_STOP_VIS;
2716 			else if (get_fpos_of_mouse(&m_pos) != IN_BUFFER)
2717 			    jump_flags = MOUSE_MAY_STOP_VIS;
2718 			else
2719 			{
2720 			    if ((lt(curwin->w_cursor, VIsual)
2721 					&& (lt(m_pos, curwin->w_cursor)
2722 					    || lt(VIsual, m_pos)))
2723 				    || (lt(VIsual, curwin->w_cursor)
2724 					&& (lt(m_pos, VIsual)
2725 					    || lt(curwin->w_cursor, m_pos))))
2726 			    {
2727 				jump_flags = MOUSE_MAY_STOP_VIS;
2728 			    }
2729 			    else if (VIsual_mode == Ctrl_V)
2730 			    {
2731 				getvcols(curwin, &curwin->w_cursor, &VIsual,
2732 							 &leftcol, &rightcol);
2733 				getvcol(curwin, &m_pos, NULL, &m_pos.col, NULL);
2734 				if (m_pos.col < leftcol || m_pos.col > rightcol)
2735 				    jump_flags = MOUSE_MAY_STOP_VIS;
2736 			    }
2737 			}
2738 		    }
2739 		    else
2740 			jump_flags = MOUSE_MAY_STOP_VIS;
2741 		}
2742 		if (jump_flags)
2743 		{
2744 		    jump_flags = jump_to_mouse(jump_flags, NULL, which_button);
2745 		    update_curbuf(VIsual_active ? INVERTED : VALID);
2746 		    setcursor();
2747 		    out_flush();    /* Update before showing popup menu */
2748 		}
2749 # ifdef FEAT_MENU
2750 		gui_show_popupmenu();
2751 # endif
2752 		return (jump_flags & CURSOR_MOVED) != 0;
2753 	    }
2754 	    else
2755 		return FALSE;
2756 #else
2757 	    return FALSE;
2758 #endif
2759 	}
2760 	if (which_button == MOUSE_LEFT
2761 				&& (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT)))
2762 	{
2763 	    which_button = MOUSE_RIGHT;
2764 	    mod_mask &= ~MOD_MASK_SHIFT;
2765 	}
2766     }
2767 
2768     if ((State & (NORMAL | INSERT))
2769 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2770     {
2771 	if (which_button == MOUSE_LEFT)
2772 	{
2773 	    if (is_click)
2774 	    {
2775 		/* stop Visual mode for a left click in a window, but not when
2776 		 * on a status line */
2777 		if (VIsual_active)
2778 		    jump_flags |= MOUSE_MAY_STOP_VIS;
2779 	    }
2780 	    else if (mouse_has(MOUSE_VISUAL))
2781 		jump_flags |= MOUSE_MAY_VIS;
2782 	}
2783 	else if (which_button == MOUSE_RIGHT)
2784 	{
2785 	    if (is_click && VIsual_active)
2786 	    {
2787 		/*
2788 		 * Remember the start and end of visual before moving the
2789 		 * cursor.
2790 		 */
2791 		if (lt(curwin->w_cursor, VIsual))
2792 		{
2793 		    start_visual = curwin->w_cursor;
2794 		    end_visual = VIsual;
2795 		}
2796 		else
2797 		{
2798 		    start_visual = VIsual;
2799 		    end_visual = curwin->w_cursor;
2800 		}
2801 	    }
2802 	    jump_flags |= MOUSE_FOCUS;
2803 	    if (mouse_has(MOUSE_VISUAL))
2804 		jump_flags |= MOUSE_MAY_VIS;
2805 	}
2806     }
2807 
2808     /*
2809      * If an operator is pending, ignore all drags and releases until the
2810      * next mouse click.
2811      */
2812     if (!is_drag && oap != NULL && oap->op_type != OP_NOP)
2813     {
2814 	got_click = FALSE;
2815 	oap->motion_type = MCHAR;
2816     }
2817 
2818     /* When releasing the button let jump_to_mouse() know. */
2819     if (!is_click && !is_drag)
2820 	jump_flags |= MOUSE_RELEASED;
2821 
2822     /*
2823      * JUMP!
2824      */
2825     jump_flags = jump_to_mouse(jump_flags,
2826 			oap == NULL ? NULL : &(oap->inclusive), which_button);
2827     moved = (jump_flags & CURSOR_MOVED);
2828     in_status_line = (jump_flags & IN_STATUS_LINE);
2829 #ifdef FEAT_VERTSPLIT
2830     in_sep_line = (jump_flags & IN_SEP_LINE);
2831 #endif
2832 
2833 #ifdef FEAT_NETBEANS_INTG
2834     if (isNetbeansBuffer(curbuf)
2835 			    && !(jump_flags & (IN_STATUS_LINE | IN_SEP_LINE)))
2836     {
2837 	int key = KEY2TERMCAP1(c);
2838 
2839 	if (key == (int)KE_LEFTRELEASE || key == (int)KE_MIDDLERELEASE
2840 					       || key == (int)KE_RIGHTRELEASE)
2841 	    netbeans_button_release(which_button);
2842     }
2843 #endif
2844 
2845     /* When jumping to another window, clear a pending operator.  That's a bit
2846      * friendlier than beeping and not jumping to that window. */
2847     if (curwin != old_curwin && oap != NULL && oap->op_type != OP_NOP)
2848 	clearop(oap);
2849 
2850 #ifdef FEAT_FOLDING
2851     if (mod_mask == 0
2852 	    && !is_drag
2853 	    && (jump_flags & (MOUSE_FOLD_CLOSE | MOUSE_FOLD_OPEN))
2854 	    && which_button == MOUSE_LEFT)
2855     {
2856 	/* open or close a fold at this line */
2857 	if (jump_flags & MOUSE_FOLD_OPEN)
2858 	    openFold(curwin->w_cursor.lnum, 1L);
2859 	else
2860 	    closeFold(curwin->w_cursor.lnum, 1L);
2861 	/* don't move the cursor if still in the same window */
2862 	if (curwin == old_curwin)
2863 	    curwin->w_cursor = save_cursor;
2864     }
2865 #endif
2866 
2867 #if defined(FEAT_CLIPBOARD) && defined(FEAT_CMDWIN)
2868     if ((jump_flags & IN_OTHER_WIN) && !VIsual_active && clip_star.available)
2869     {
2870 	clip_modeless(which_button, is_click, is_drag);
2871 	return FALSE;
2872     }
2873 #endif
2874 
2875     /* Set global flag that we are extending the Visual area with mouse
2876      * dragging; temporarily minimize 'scrolloff'. */
2877     if (VIsual_active && is_drag && p_so)
2878     {
2879 	/* In the very first line, allow scrolling one line */
2880 	if (mouse_row == 0)
2881 	    mouse_dragging = 2;
2882 	else
2883 	    mouse_dragging = 1;
2884     }
2885 
2886     /* When dragging the mouse above the window, scroll down. */
2887     if (is_drag && mouse_row < 0 && !in_status_line)
2888     {
2889 	scroll_redraw(FALSE, 1L);
2890 	mouse_row = 0;
2891     }
2892 
2893     if (start_visual.lnum)		/* right click in visual mode */
2894     {
2895        /* When ALT is pressed make Visual mode blockwise. */
2896        if (mod_mask & MOD_MASK_ALT)
2897 	   VIsual_mode = Ctrl_V;
2898 
2899 	/*
2900 	 * In Visual-block mode, divide the area in four, pick up the corner
2901 	 * that is in the quarter that the cursor is in.
2902 	 */
2903 	if (VIsual_mode == Ctrl_V)
2904 	{
2905 	    getvcols(curwin, &start_visual, &end_visual, &leftcol, &rightcol);
2906 	    if (curwin->w_curswant > (leftcol + rightcol) / 2)
2907 		end_visual.col = leftcol;
2908 	    else
2909 		end_visual.col = rightcol;
2910 	    if (curwin->w_cursor.lnum <
2911 				    (start_visual.lnum + end_visual.lnum) / 2)
2912 		end_visual.lnum = end_visual.lnum;
2913 	    else
2914 		end_visual.lnum = start_visual.lnum;
2915 
2916 	    /* move VIsual to the right column */
2917 	    start_visual = curwin->w_cursor;	    /* save the cursor pos */
2918 	    curwin->w_cursor = end_visual;
2919 	    coladvance(end_visual.col);
2920 	    VIsual = curwin->w_cursor;
2921 	    curwin->w_cursor = start_visual;	    /* restore the cursor */
2922 	}
2923 	else
2924 	{
2925 	    /*
2926 	     * If the click is before the start of visual, change the start.
2927 	     * If the click is after the end of visual, change the end.  If
2928 	     * the click is inside the visual, change the closest side.
2929 	     */
2930 	    if (lt(curwin->w_cursor, start_visual))
2931 		VIsual = end_visual;
2932 	    else if (lt(end_visual, curwin->w_cursor))
2933 		VIsual = start_visual;
2934 	    else
2935 	    {
2936 		/* In the same line, compare column number */
2937 		if (end_visual.lnum == start_visual.lnum)
2938 		{
2939 		    if (curwin->w_cursor.col - start_visual.col >
2940 				    end_visual.col - curwin->w_cursor.col)
2941 			VIsual = start_visual;
2942 		    else
2943 			VIsual = end_visual;
2944 		}
2945 
2946 		/* In different lines, compare line number */
2947 		else
2948 		{
2949 		    diff = (curwin->w_cursor.lnum - start_visual.lnum) -
2950 				(end_visual.lnum - curwin->w_cursor.lnum);
2951 
2952 		    if (diff > 0)		/* closest to end */
2953 			VIsual = start_visual;
2954 		    else if (diff < 0)	/* closest to start */
2955 			VIsual = end_visual;
2956 		    else			/* in the middle line */
2957 		    {
2958 			if (curwin->w_cursor.col <
2959 					(start_visual.col + end_visual.col) / 2)
2960 			    VIsual = end_visual;
2961 			else
2962 			    VIsual = start_visual;
2963 		    }
2964 		}
2965 	    }
2966 	}
2967     }
2968     /*
2969      * If Visual mode started in insert mode, execute "CTRL-O"
2970      */
2971     else if ((State & INSERT) && VIsual_active)
2972 	stuffcharReadbuff(Ctrl_O);
2973 
2974     /*
2975      * Middle mouse click: Put text before cursor.
2976      */
2977     if (which_button == MOUSE_MIDDLE)
2978     {
2979 #ifdef FEAT_CLIPBOARD
2980 	if (clip_star.available && regname == 0)
2981 	    regname = '*';
2982 #endif
2983 	if (yank_register_mline(regname))
2984 	{
2985 	    if (mouse_past_bottom)
2986 		dir = FORWARD;
2987 	}
2988 	else if (mouse_past_eol)
2989 	    dir = FORWARD;
2990 
2991 	if (fixindent)
2992 	{
2993 	    c1 = (dir == BACKWARD) ? '[' : ']';
2994 	    c2 = 'p';
2995 	}
2996 	else
2997 	{
2998 	    c1 = (dir == FORWARD) ? 'p' : 'P';
2999 	    c2 = NUL;
3000 	}
3001 	prep_redo(regname, count, NUL, c1, NUL, c2, NUL);
3002 
3003 	/*
3004 	 * Remember where the paste started, so in edit() Insstart can be set
3005 	 * to this position
3006 	 */
3007 	if (restart_edit != 0)
3008 	    where_paste_started = curwin->w_cursor;
3009 	do_put(regname, dir, count, fixindent | PUT_CURSEND);
3010     }
3011 
3012 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
3013     /*
3014      * Ctrl-Mouse click or double click in a quickfix window jumps to the
3015      * error under the mouse pointer.
3016      */
3017     else if (((mod_mask & MOD_MASK_CTRL)
3018 		|| (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
3019 	    && bt_quickfix(curbuf))
3020     {
3021 	if (State & INSERT)
3022 	    stuffcharReadbuff(Ctrl_O);
3023 	if (curwin->w_llist_ref == NULL)	/* quickfix window */
3024 	    stuffReadbuff((char_u *)":.cc\n");
3025 	else					/* location list window */
3026 	    stuffReadbuff((char_u *)":.ll\n");
3027 	got_click = FALSE;		/* ignore drag&release now */
3028     }
3029 #endif
3030 
3031     /*
3032      * Ctrl-Mouse click (or double click in a help window) jumps to the tag
3033      * under the mouse pointer.
3034      */
3035     else if ((mod_mask & MOD_MASK_CTRL) || (curbuf->b_help
3036 		     && (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK))
3037     {
3038 	if (State & INSERT)
3039 	    stuffcharReadbuff(Ctrl_O);
3040 	stuffcharReadbuff(Ctrl_RSB);
3041 	got_click = FALSE;		/* ignore drag&release now */
3042     }
3043 
3044     /*
3045      * Shift-Mouse click searches for the next occurrence of the word under
3046      * the mouse pointer
3047      */
3048     else if ((mod_mask & MOD_MASK_SHIFT))
3049     {
3050 	if ((State & INSERT) || (VIsual_active && VIsual_select))
3051 	    stuffcharReadbuff(Ctrl_O);
3052 	if (which_button == MOUSE_LEFT)
3053 	    stuffcharReadbuff('*');
3054 	else	/* MOUSE_RIGHT */
3055 	    stuffcharReadbuff('#');
3056     }
3057 
3058     /* Handle double clicks, unless on status line */
3059     else if (in_status_line)
3060     {
3061 #ifdef FEAT_MOUSESHAPE
3062 	if ((is_drag || is_click) && !drag_status_line)
3063 	{
3064 	    drag_status_line = TRUE;
3065 	    update_mouseshape(-1);
3066 	}
3067 #endif
3068     }
3069 #ifdef FEAT_VERTSPLIT
3070     else if (in_sep_line)
3071     {
3072 # ifdef FEAT_MOUSESHAPE
3073 	if ((is_drag || is_click) && !drag_sep_line)
3074 	{
3075 	    drag_sep_line = TRUE;
3076 	    update_mouseshape(-1);
3077 	}
3078 # endif
3079     }
3080 #endif
3081     else if ((mod_mask & MOD_MASK_MULTI_CLICK) && (State & (NORMAL | INSERT))
3082 	     && mouse_has(MOUSE_VISUAL))
3083     {
3084 	if (is_click || !VIsual_active)
3085 	{
3086 	    if (VIsual_active)
3087 		orig_cursor = VIsual;
3088 	    else
3089 	    {
3090 		check_visual_highlight();
3091 		VIsual = curwin->w_cursor;
3092 		orig_cursor = VIsual;
3093 		VIsual_active = TRUE;
3094 		VIsual_reselect = TRUE;
3095 		/* start Select mode if 'selectmode' contains "mouse" */
3096 		may_start_select('o');
3097 		setmouse();
3098 	    }
3099 	    if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
3100 	    {
3101 		/* Double click with ALT pressed makes it blockwise. */
3102 		if (mod_mask & MOD_MASK_ALT)
3103 		    VIsual_mode = Ctrl_V;
3104 		else
3105 		    VIsual_mode = 'v';
3106 	    }
3107 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_3CLICK)
3108 		VIsual_mode = 'V';
3109 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_4CLICK)
3110 		VIsual_mode = Ctrl_V;
3111 #ifdef FEAT_CLIPBOARD
3112 	    /* Make sure the clipboard gets updated.  Needed because start and
3113 	     * end may still be the same, and the selection needs to be owned */
3114 	    clip_star.vmode = NUL;
3115 #endif
3116 	}
3117 	/*
3118 	 * A double click selects a word or a block.
3119 	 */
3120 	if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
3121 	{
3122 	    pos_T	*pos = NULL;
3123 	    int		gc;
3124 
3125 	    if (is_click)
3126 	    {
3127 		/* If the character under the cursor (skipping white space) is
3128 		 * not a word character, try finding a match and select a (),
3129 		 * {}, [], #if/#endif, etc. block. */
3130 		end_visual = curwin->w_cursor;
3131 		while (gc = gchar_pos(&end_visual), vim_iswhite(gc))
3132 		    inc(&end_visual);
3133 		if (oap != NULL)
3134 		    oap->motion_type = MCHAR;
3135 		if (oap != NULL
3136 			&& VIsual_mode == 'v'
3137 			&& !vim_iswordc(gchar_pos(&end_visual))
3138 			&& equalpos(curwin->w_cursor, VIsual)
3139 			&& (pos = findmatch(oap, NUL)) != NULL)
3140 		{
3141 		    curwin->w_cursor = *pos;
3142 		    if (oap->motion_type == MLINE)
3143 			VIsual_mode = 'V';
3144 		    else if (*p_sel == 'e')
3145 		    {
3146 			if (lt(curwin->w_cursor, VIsual))
3147 			    ++VIsual.col;
3148 			else
3149 			    ++curwin->w_cursor.col;
3150 		    }
3151 		}
3152 	    }
3153 
3154 	    if (pos == NULL && (is_click || is_drag))
3155 	    {
3156 		/* When not found a match or when dragging: extend to include
3157 		 * a word. */
3158 		if (lt(curwin->w_cursor, orig_cursor))
3159 		{
3160 		    find_start_of_word(&curwin->w_cursor);
3161 		    find_end_of_word(&VIsual);
3162 		}
3163 		else
3164 		{
3165 		    find_start_of_word(&VIsual);
3166 		    if (*p_sel == 'e' && *ml_get_cursor() != NUL)
3167 #ifdef FEAT_MBYTE
3168 			curwin->w_cursor.col +=
3169 					 (*mb_ptr2len)(ml_get_cursor());
3170 #else
3171 			++curwin->w_cursor.col;
3172 #endif
3173 		    find_end_of_word(&curwin->w_cursor);
3174 		}
3175 	    }
3176 	    curwin->w_set_curswant = TRUE;
3177 	}
3178 	if (is_click)
3179 	    redraw_curbuf_later(INVERTED);	/* update the inversion */
3180     }
3181     else if (VIsual_active && !old_active)
3182     {
3183 	if (mod_mask & MOD_MASK_ALT)
3184 	    VIsual_mode = Ctrl_V;
3185 	else
3186 	    VIsual_mode = 'v';
3187     }
3188 
3189     /* If Visual mode changed show it later. */
3190     if ((!VIsual_active && old_active && mode_displayed)
3191 	    || (VIsual_active && p_smd && msg_silent == 0
3192 				 && (!old_active || VIsual_mode != old_mode)))
3193 	redraw_cmdline = TRUE;
3194 
3195     return moved;
3196 }
3197 
3198 /*
3199  * Move "pos" back to the start of the word it's in.
3200  */
3201     static void
3202 find_start_of_word(pos)
3203     pos_T	*pos;
3204 {
3205     char_u	*line;
3206     int		cclass;
3207     int		col;
3208 
3209     line = ml_get(pos->lnum);
3210     cclass = get_mouse_class(line + pos->col);
3211 
3212     while (pos->col > 0)
3213     {
3214 	col = pos->col - 1;
3215 #ifdef FEAT_MBYTE
3216 	col -= (*mb_head_off)(line, line + col);
3217 #endif
3218 	if (get_mouse_class(line + col) != cclass)
3219 	    break;
3220 	pos->col = col;
3221     }
3222 }
3223 
3224 /*
3225  * Move "pos" forward to the end of the word it's in.
3226  * When 'selection' is "exclusive", the position is just after the word.
3227  */
3228     static void
3229 find_end_of_word(pos)
3230     pos_T	*pos;
3231 {
3232     char_u	*line;
3233     int		cclass;
3234     int		col;
3235 
3236     line = ml_get(pos->lnum);
3237     if (*p_sel == 'e' && pos->col > 0)
3238     {
3239 	--pos->col;
3240 #ifdef FEAT_MBYTE
3241 	pos->col -= (*mb_head_off)(line, line + pos->col);
3242 #endif
3243     }
3244     cclass = get_mouse_class(line + pos->col);
3245     while (line[pos->col] != NUL)
3246     {
3247 #ifdef FEAT_MBYTE
3248 	col = pos->col + (*mb_ptr2len)(line + pos->col);
3249 #else
3250 	col = pos->col + 1;
3251 #endif
3252 	if (get_mouse_class(line + col) != cclass)
3253 	{
3254 	    if (*p_sel == 'e')
3255 		pos->col = col;
3256 	    break;
3257 	}
3258 	pos->col = col;
3259     }
3260 }
3261 
3262 /*
3263  * Get class of a character for selection: same class means same word.
3264  * 0: blank
3265  * 1: punctuation groups
3266  * 2: normal word character
3267  * >2: multi-byte word character.
3268  */
3269     static int
3270 get_mouse_class(p)
3271     char_u	*p;
3272 {
3273     int		c;
3274 
3275 #ifdef FEAT_MBYTE
3276     if (has_mbyte && MB_BYTE2LEN(p[0]) > 1)
3277 	return mb_get_class(p);
3278 #endif
3279 
3280     c = *p;
3281     if (c == ' ' || c == '\t')
3282 	return 0;
3283 
3284     if (vim_iswordc(c))
3285 	return 2;
3286 
3287     /*
3288      * There are a few special cases where we want certain combinations of
3289      * characters to be considered as a single word.  These are things like
3290      * "->", "/ *", "*=", "+=", "&=", "<=", ">=", "!=" etc.  Otherwise, each
3291      * character is in its own class.
3292      */
3293     if (c != NUL && vim_strchr((char_u *)"-+*/%<>&|^!=", c) != NULL)
3294 	return 1;
3295     return c;
3296 }
3297 #endif /* FEAT_MOUSE */
3298 
3299 /*
3300  * Check if  highlighting for visual mode is possible, give a warning message
3301  * if not.
3302  */
3303     void
3304 check_visual_highlight()
3305 {
3306     static int	    did_check = FALSE;
3307 
3308     if (full_screen)
3309     {
3310 	if (!did_check && hl_attr(HLF_V) == 0)
3311 	    MSG(_("Warning: terminal cannot highlight"));
3312 	did_check = TRUE;
3313     }
3314 }
3315 
3316 /*
3317  * End Visual mode.
3318  * This function should ALWAYS be called to end Visual mode, except from
3319  * do_pending_operator().
3320  */
3321     void
3322 end_visual_mode()
3323 {
3324 #ifdef FEAT_CLIPBOARD
3325     /*
3326      * If we are using the clipboard, then remember what was selected in case
3327      * we need to paste it somewhere while we still own the selection.
3328      * Only do this when the clipboard is already owned.  Don't want to grab
3329      * the selection when hitting ESC.
3330      */
3331     if (clip_star.available && clip_star.owned)
3332 	clip_auto_select();
3333 #endif
3334 
3335     VIsual_active = FALSE;
3336 #ifdef FEAT_MOUSE
3337     setmouse();
3338     mouse_dragging = 0;
3339 #endif
3340 
3341     /* Save the current VIsual area for '< and '> marks, and "gv" */
3342     curbuf->b_visual.vi_mode = VIsual_mode;
3343     curbuf->b_visual.vi_start = VIsual;
3344     curbuf->b_visual.vi_end = curwin->w_cursor;
3345     curbuf->b_visual.vi_curswant = curwin->w_curswant;
3346 #ifdef FEAT_EVAL
3347     curbuf->b_visual_mode_eval = VIsual_mode;
3348 #endif
3349 #ifdef FEAT_VIRTUALEDIT
3350     if (!virtual_active())
3351 	curwin->w_cursor.coladd = 0;
3352 #endif
3353 
3354     if (mode_displayed)
3355 	clear_cmdline = TRUE;		/* unshow visual mode later */
3356 #ifdef FEAT_CMDL_INFO
3357     else
3358 	clear_showcmd();
3359 #endif
3360 
3361     adjust_cursor_eol();
3362 }
3363 
3364 /*
3365  * Reset VIsual_active and VIsual_reselect.
3366  */
3367     void
3368 reset_VIsual_and_resel()
3369 {
3370     if (VIsual_active)
3371     {
3372 	end_visual_mode();
3373 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3374     }
3375     VIsual_reselect = FALSE;
3376 }
3377 
3378 /*
3379  * Reset VIsual_active and VIsual_reselect if it's set.
3380  */
3381     void
3382 reset_VIsual()
3383 {
3384     if (VIsual_active)
3385     {
3386 	end_visual_mode();
3387 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3388 	VIsual_reselect = FALSE;
3389     }
3390 }
3391 
3392 #if defined(FEAT_BEVAL)
3393 static int find_is_eval_item __ARGS((char_u *ptr, int *colp, int *nbp, int dir));
3394 
3395 /*
3396  * Check for a balloon-eval special item to include when searching for an
3397  * identifier.  When "dir" is BACKWARD "ptr[-1]" must be valid!
3398  * Returns TRUE if the character at "*ptr" should be included.
3399  * "dir" is FORWARD or BACKWARD, the direction of searching.
3400  * "*colp" is in/decremented if "ptr[-dir]" should also be included.
3401  * "bnp" points to a counter for square brackets.
3402  */
3403     static int
3404 find_is_eval_item(ptr, colp, bnp, dir)
3405     char_u	*ptr;
3406     int		*colp;
3407     int		*bnp;
3408     int		dir;
3409 {
3410     /* Accept everything inside []. */
3411     if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD))
3412 	++*bnp;
3413     if (*bnp > 0)
3414     {
3415 	if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD))
3416 	    --*bnp;
3417 	return TRUE;
3418     }
3419 
3420     /* skip over "s.var" */
3421     if (*ptr == '.')
3422 	return TRUE;
3423 
3424     /* two-character item: s->var */
3425     if (ptr[dir == BACKWARD ? 0 : 1] == '>'
3426 	    && ptr[dir == BACKWARD ? -1 : 0] == '-')
3427     {
3428 	*colp += dir;
3429 	return TRUE;
3430     }
3431     return FALSE;
3432 }
3433 #endif
3434 
3435 /*
3436  * Find the identifier under or to the right of the cursor.
3437  * "find_type" can have one of three values:
3438  * FIND_IDENT:   find an identifier (keyword)
3439  * FIND_STRING:  find any non-white string
3440  * FIND_IDENT + FIND_STRING: find any non-white string, identifier preferred.
3441  * FIND_EVAL:	 find text useful for C program debugging
3442  *
3443  * There are three steps:
3444  * 1. Search forward for the start of an identifier/string.  Doesn't move if
3445  *    already on one.
3446  * 2. Search backward for the start of this identifier/string.
3447  *    This doesn't match the real Vi but I like it a little better and it
3448  *    shouldn't bother anyone.
3449  * 3. Search forward to the end of this identifier/string.
3450  *    When FIND_IDENT isn't defined, we backup until a blank.
3451  *
3452  * Returns the length of the string, or zero if no string is found.
3453  * If a string is found, a pointer to the string is put in "*string".  This
3454  * string is not always NUL terminated.
3455  */
3456     int
3457 find_ident_under_cursor(string, find_type)
3458     char_u	**string;
3459     int		find_type;
3460 {
3461     return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
3462 				     curwin->w_cursor.col, string, find_type);
3463 }
3464 
3465 /*
3466  * Like find_ident_under_cursor(), but for any window and any position.
3467  * However: Uses 'iskeyword' from the current window!.
3468  */
3469     int
3470 find_ident_at_pos(wp, lnum, startcol, string, find_type)
3471     win_T	*wp;
3472     linenr_T	lnum;
3473     colnr_T	startcol;
3474     char_u	**string;
3475     int		find_type;
3476 {
3477     char_u	*ptr;
3478     int		col = 0;	    /* init to shut up GCC */
3479     int		i;
3480 #ifdef FEAT_MBYTE
3481     int		this_class = 0;
3482     int		prev_class;
3483     int		prevcol;
3484 #endif
3485 #if defined(FEAT_BEVAL)
3486     int		bn = 0;	    /* bracket nesting */
3487 #endif
3488 
3489     /*
3490      * if i == 0: try to find an identifier
3491      * if i == 1: try to find any non-white string
3492      */
3493     ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
3494     for (i = (find_type & FIND_IDENT) ? 0 : 1;	i < 2; ++i)
3495     {
3496 	/*
3497 	 * 1. skip to start of identifier/string
3498 	 */
3499 	col = startcol;
3500 #ifdef FEAT_MBYTE
3501 	if (has_mbyte)
3502 	{
3503 	    while (ptr[col] != NUL)
3504 	    {
3505 # if defined(FEAT_BEVAL)
3506 		/* Stop at a ']' to evaluate "a[x]". */
3507 		if ((find_type & FIND_EVAL) && ptr[col] == ']')
3508 		    break;
3509 # endif
3510 		this_class = mb_get_class(ptr + col);
3511 		if (this_class != 0 && (i == 1 || this_class != 1))
3512 		    break;
3513 		col += (*mb_ptr2len)(ptr + col);
3514 	    }
3515 	}
3516 	else
3517 #endif
3518 	    while (ptr[col] != NUL
3519 		    && (i == 0 ? !vim_iswordc(ptr[col]) : vim_iswhite(ptr[col]))
3520 # if defined(FEAT_BEVAL)
3521 		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
3522 # endif
3523 		    )
3524 		++col;
3525 
3526 #if defined(FEAT_BEVAL)
3527 	/* When starting on a ']' count it, so that we include the '['. */
3528 	bn = ptr[col] == ']';
3529 #endif
3530 
3531 	/*
3532 	 * 2. Back up to start of identifier/string.
3533 	 */
3534 #ifdef FEAT_MBYTE
3535 	if (has_mbyte)
3536 	{
3537 	    /* Remember class of character under cursor. */
3538 # if defined(FEAT_BEVAL)
3539 	    if ((find_type & FIND_EVAL) && ptr[col] == ']')
3540 		this_class = mb_get_class((char_u *)"a");
3541 	    else
3542 # endif
3543 		this_class = mb_get_class(ptr + col);
3544 	    while (col > 0 && this_class != 0)
3545 	    {
3546 		prevcol = col - 1 - (*mb_head_off)(ptr, ptr + col - 1);
3547 		prev_class = mb_get_class(ptr + prevcol);
3548 		if (this_class != prev_class
3549 			&& (i == 0
3550 			    || prev_class == 0
3551 			    || (find_type & FIND_IDENT))
3552 # if defined(FEAT_BEVAL)
3553 			&& (!(find_type & FIND_EVAL)
3554 			    || prevcol == 0
3555 			    || !find_is_eval_item(ptr + prevcol, &prevcol,
3556 							       &bn, BACKWARD))
3557 # endif
3558 			)
3559 		    break;
3560 		col = prevcol;
3561 	    }
3562 
3563 	    /* If we don't want just any old string, or we've found an
3564 	     * identifier, stop searching. */
3565 	    if (this_class > 2)
3566 		this_class = 2;
3567 	    if (!(find_type & FIND_STRING) || this_class == 2)
3568 		break;
3569 	}
3570 	else
3571 #endif
3572 	{
3573 	    while (col > 0
3574 		    && ((i == 0
3575 			    ? vim_iswordc(ptr[col - 1])
3576 			    : (!vim_iswhite(ptr[col - 1])
3577 				&& (!(find_type & FIND_IDENT)
3578 				    || !vim_iswordc(ptr[col - 1]))))
3579 #if defined(FEAT_BEVAL)
3580 			|| ((find_type & FIND_EVAL)
3581 			    && col > 1
3582 			    && find_is_eval_item(ptr + col - 1, &col,
3583 							       &bn, BACKWARD))
3584 #endif
3585 			))
3586 		--col;
3587 
3588 	    /* If we don't want just any old string, or we've found an
3589 	     * identifier, stop searching. */
3590 	    if (!(find_type & FIND_STRING) || vim_iswordc(ptr[col]))
3591 		break;
3592 	}
3593     }
3594 
3595     if (ptr[col] == NUL || (i == 0 && (
3596 #ifdef FEAT_MBYTE
3597 		has_mbyte ? this_class != 2 :
3598 #endif
3599 		!vim_iswordc(ptr[col]))))
3600     {
3601 	/*
3602 	 * didn't find an identifier or string
3603 	 */
3604 	if (find_type & FIND_STRING)
3605 	    EMSG(_("E348: No string under cursor"));
3606 	else
3607 	    EMSG(_(e_noident));
3608 	return 0;
3609     }
3610     ptr += col;
3611     *string = ptr;
3612 
3613     /*
3614      * 3. Find the end if the identifier/string.
3615      */
3616 #if defined(FEAT_BEVAL)
3617     bn = 0;
3618     startcol -= col;
3619 #endif
3620     col = 0;
3621 #ifdef FEAT_MBYTE
3622     if (has_mbyte)
3623     {
3624 	/* Search for point of changing multibyte character class. */
3625 	this_class = mb_get_class(ptr);
3626 	while (ptr[col] != NUL
3627 		&& ((i == 0 ? mb_get_class(ptr + col) == this_class
3628 			    : mb_get_class(ptr + col) != 0)
3629 # if defined(FEAT_BEVAL)
3630 		    || ((find_type & FIND_EVAL)
3631 			&& col <= (int)startcol
3632 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3633 # endif
3634 		))
3635 	    col += (*mb_ptr2len)(ptr + col);
3636     }
3637     else
3638 #endif
3639 	while ((i == 0 ? vim_iswordc(ptr[col])
3640 		       : (ptr[col] != NUL && !vim_iswhite(ptr[col])))
3641 # if defined(FEAT_BEVAL)
3642 		    || ((find_type & FIND_EVAL)
3643 			&& col <= (int)startcol
3644 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3645 # endif
3646 		)
3647 	{
3648 	    ++col;
3649 	}
3650 
3651     return col;
3652 }
3653 
3654 /*
3655  * Prepare for redo of a normal command.
3656  */
3657     static void
3658 prep_redo_cmd(cap)
3659     cmdarg_T  *cap;
3660 {
3661     prep_redo(cap->oap->regname, cap->count0,
3662 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
3663 }
3664 
3665 /*
3666  * Prepare for redo of any command.
3667  * Note that only the last argument can be a multi-byte char.
3668  */
3669     static void
3670 prep_redo(regname, num, cmd1, cmd2, cmd3, cmd4, cmd5)
3671     int	    regname;
3672     long    num;
3673     int	    cmd1;
3674     int	    cmd2;
3675     int	    cmd3;
3676     int	    cmd4;
3677     int	    cmd5;
3678 {
3679     ResetRedobuff();
3680     if (regname != 0)	/* yank from specified buffer */
3681     {
3682 	AppendCharToRedobuff('"');
3683 	AppendCharToRedobuff(regname);
3684     }
3685     if (num)
3686 	AppendNumberToRedobuff(num);
3687 
3688     if (cmd1 != NUL)
3689 	AppendCharToRedobuff(cmd1);
3690     if (cmd2 != NUL)
3691 	AppendCharToRedobuff(cmd2);
3692     if (cmd3 != NUL)
3693 	AppendCharToRedobuff(cmd3);
3694     if (cmd4 != NUL)
3695 	AppendCharToRedobuff(cmd4);
3696     if (cmd5 != NUL)
3697 	AppendCharToRedobuff(cmd5);
3698 }
3699 
3700 /*
3701  * check for operator active and clear it
3702  *
3703  * return TRUE if operator was active
3704  */
3705     static int
3706 checkclearop(oap)
3707     oparg_T	*oap;
3708 {
3709     if (oap->op_type == OP_NOP)
3710 	return FALSE;
3711     clearopbeep(oap);
3712     return TRUE;
3713 }
3714 
3715 /*
3716  * Check for operator or Visual active.  Clear active operator.
3717  *
3718  * Return TRUE if operator or Visual was active.
3719  */
3720     static int
3721 checkclearopq(oap)
3722     oparg_T	*oap;
3723 {
3724     if (oap->op_type == OP_NOP && !VIsual_active)
3725 	return FALSE;
3726     clearopbeep(oap);
3727     return TRUE;
3728 }
3729 
3730     static void
3731 clearop(oap)
3732     oparg_T	*oap;
3733 {
3734     oap->op_type = OP_NOP;
3735     oap->regname = 0;
3736     oap->motion_force = NUL;
3737     oap->use_reg_one = FALSE;
3738 }
3739 
3740     static void
3741 clearopbeep(oap)
3742     oparg_T	*oap;
3743 {
3744     clearop(oap);
3745     beep_flush();
3746 }
3747 
3748 /*
3749  * Remove the shift modifier from a special key.
3750  */
3751     static void
3752 unshift_special(cap)
3753     cmdarg_T	*cap;
3754 {
3755     switch (cap->cmdchar)
3756     {
3757 	case K_S_RIGHT:	cap->cmdchar = K_RIGHT; break;
3758 	case K_S_LEFT:	cap->cmdchar = K_LEFT; break;
3759 	case K_S_UP:	cap->cmdchar = K_UP; break;
3760 	case K_S_DOWN:	cap->cmdchar = K_DOWN; break;
3761 	case K_S_HOME:	cap->cmdchar = K_HOME; break;
3762 	case K_S_END:	cap->cmdchar = K_END; break;
3763     }
3764     cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
3765 }
3766 
3767 #if defined(FEAT_CMDL_INFO) || defined(PROTO)
3768 /*
3769  * Routines for displaying a partly typed command
3770  */
3771 
3772 #define SHOWCMD_BUFLEN SHOWCMD_COLS + 1 + 30
3773 static char_u	showcmd_buf[SHOWCMD_BUFLEN];
3774 static char_u	old_showcmd_buf[SHOWCMD_BUFLEN];  /* For push_showcmd() */
3775 static int	showcmd_is_clear = TRUE;
3776 static int	showcmd_visual = FALSE;
3777 
3778 static void display_showcmd __ARGS((void));
3779 
3780     void
3781 clear_showcmd()
3782 {
3783     if (!p_sc)
3784 	return;
3785 
3786     if (VIsual_active && !char_avail())
3787     {
3788 	int		cursor_bot = lt(VIsual, curwin->w_cursor);
3789 	long		lines;
3790 	colnr_T		leftcol, rightcol;
3791 	linenr_T	top, bot;
3792 
3793 	/* Show the size of the Visual area. */
3794 	if (cursor_bot)
3795 	{
3796 	    top = VIsual.lnum;
3797 	    bot = curwin->w_cursor.lnum;
3798 	}
3799 	else
3800 	{
3801 	    top = curwin->w_cursor.lnum;
3802 	    bot = VIsual.lnum;
3803 	}
3804 # ifdef FEAT_FOLDING
3805 	/* Include closed folds as a whole. */
3806 	hasFolding(top, &top, NULL);
3807 	hasFolding(bot, NULL, &bot);
3808 # endif
3809 	lines = bot - top + 1;
3810 
3811 	if (VIsual_mode == Ctrl_V)
3812 	{
3813 # ifdef FEAT_LINEBREAK
3814 	    char_u *saved_sbr = p_sbr;
3815 
3816 	    /* Make 'sbr' empty for a moment to get the correct size. */
3817 	    p_sbr = empty_option;
3818 # endif
3819 	    getvcols(curwin, &curwin->w_cursor, &VIsual, &leftcol, &rightcol);
3820 # ifdef FEAT_LINEBREAK
3821 	    p_sbr = saved_sbr;
3822 # endif
3823 	    sprintf((char *)showcmd_buf, "%ldx%ld", lines,
3824 					      (long)(rightcol - leftcol + 1));
3825 	}
3826 	else if (VIsual_mode == 'V' || VIsual.lnum != curwin->w_cursor.lnum)
3827 	    sprintf((char *)showcmd_buf, "%ld", lines);
3828 	else
3829 	{
3830 	    char_u  *s, *e;
3831 	    int	    l;
3832 	    int	    bytes = 0;
3833 	    int	    chars = 0;
3834 
3835 	    if (cursor_bot)
3836 	    {
3837 		s = ml_get_pos(&VIsual);
3838 		e = ml_get_cursor();
3839 	    }
3840 	    else
3841 	    {
3842 		s = ml_get_cursor();
3843 		e = ml_get_pos(&VIsual);
3844 	    }
3845 	    while ((*p_sel != 'e') ? s <= e : s < e)
3846 	    {
3847 # ifdef FEAT_MBYTE
3848 		l = (*mb_ptr2len)(s);
3849 # else
3850 		l = (*s == NUL) ? 0 : 1;
3851 # endif
3852 		if (l == 0)
3853 		{
3854 		    ++bytes;
3855 		    ++chars;
3856 		    break;  /* end of line */
3857 		}
3858 		bytes += l;
3859 		++chars;
3860 		s += l;
3861 	    }
3862 	    if (bytes == chars)
3863 		sprintf((char *)showcmd_buf, "%d", chars);
3864 	    else
3865 		sprintf((char *)showcmd_buf, "%d-%d", chars, bytes);
3866 	}
3867 	showcmd_buf[SHOWCMD_COLS] = NUL;	/* truncate */
3868 	showcmd_visual = TRUE;
3869     }
3870     else
3871     {
3872 	showcmd_buf[0] = NUL;
3873 	showcmd_visual = FALSE;
3874 
3875 	/* Don't actually display something if there is nothing to clear. */
3876 	if (showcmd_is_clear)
3877 	    return;
3878     }
3879 
3880     display_showcmd();
3881 }
3882 
3883 /*
3884  * Add 'c' to string of shown command chars.
3885  * Return TRUE if output has been written (and setcursor() has been called).
3886  */
3887     int
3888 add_to_showcmd(c)
3889     int		c;
3890 {
3891     char_u	*p;
3892     int		old_len;
3893     int		extra_len;
3894     int		overflow;
3895 #if defined(FEAT_MOUSE)
3896     int		i;
3897     static int	ignore[] =
3898     {
3899 # ifdef FEAT_GUI
3900 	K_VER_SCROLLBAR, K_HOR_SCROLLBAR,
3901 	K_LEFTMOUSE_NM, K_LEFTRELEASE_NM,
3902 # endif
3903 	K_IGNORE,
3904 	K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE,
3905 	K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
3906 	K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
3907 	K_MOUSEDOWN, K_MOUSEUP, K_MOUSELEFT, K_MOUSERIGHT,
3908 	K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
3909 	K_CURSORHOLD,
3910 	0
3911     };
3912 #endif
3913 
3914     if (!p_sc || msg_silent != 0)
3915 	return FALSE;
3916 
3917     if (showcmd_visual)
3918     {
3919 	showcmd_buf[0] = NUL;
3920 	showcmd_visual = FALSE;
3921     }
3922 
3923 #if defined(FEAT_MOUSE)
3924     /* Ignore keys that are scrollbar updates and mouse clicks */
3925     if (IS_SPECIAL(c))
3926 	for (i = 0; ignore[i] != 0; ++i)
3927 	    if (ignore[i] == c)
3928 		return FALSE;
3929 #endif
3930 
3931     p = transchar(c);
3932     if (*p == ' ')
3933 	STRCPY(p, "<20>");
3934     old_len = (int)STRLEN(showcmd_buf);
3935     extra_len = (int)STRLEN(p);
3936     overflow = old_len + extra_len - SHOWCMD_COLS;
3937     if (overflow > 0)
3938 	mch_memmove(showcmd_buf, showcmd_buf + overflow,
3939 						      old_len - overflow + 1);
3940     STRCAT(showcmd_buf, p);
3941 
3942     if (char_avail())
3943 	return FALSE;
3944 
3945     display_showcmd();
3946 
3947     return TRUE;
3948 }
3949 
3950     void
3951 add_to_showcmd_c(c)
3952     int		c;
3953 {
3954     if (!add_to_showcmd(c))
3955 	setcursor();
3956 }
3957 
3958 /*
3959  * Delete 'len' characters from the end of the shown command.
3960  */
3961     static void
3962 del_from_showcmd(len)
3963     int	    len;
3964 {
3965     int	    old_len;
3966 
3967     if (!p_sc)
3968 	return;
3969 
3970     old_len = (int)STRLEN(showcmd_buf);
3971     if (len > old_len)
3972 	len = old_len;
3973     showcmd_buf[old_len - len] = NUL;
3974 
3975     if (!char_avail())
3976 	display_showcmd();
3977 }
3978 
3979 /*
3980  * push_showcmd() and pop_showcmd() are used when waiting for the user to type
3981  * something and there is a partial mapping.
3982  */
3983     void
3984 push_showcmd()
3985 {
3986     if (p_sc)
3987 	STRCPY(old_showcmd_buf, showcmd_buf);
3988 }
3989 
3990     void
3991 pop_showcmd()
3992 {
3993     if (!p_sc)
3994 	return;
3995 
3996     STRCPY(showcmd_buf, old_showcmd_buf);
3997 
3998     display_showcmd();
3999 }
4000 
4001     static void
4002 display_showcmd()
4003 {
4004     int	    len;
4005 
4006     cursor_off();
4007 
4008     len = (int)STRLEN(showcmd_buf);
4009     if (len == 0)
4010 	showcmd_is_clear = TRUE;
4011     else
4012     {
4013 	screen_puts(showcmd_buf, (int)Rows - 1, sc_col, 0);
4014 	showcmd_is_clear = FALSE;
4015     }
4016 
4017     /*
4018      * clear the rest of an old message by outputting up to SHOWCMD_COLS
4019      * spaces
4020      */
4021     screen_puts((char_u *)"          " + len, (int)Rows - 1, sc_col + len, 0);
4022 
4023     setcursor();	    /* put cursor back where it belongs */
4024 }
4025 #endif
4026 
4027 #ifdef FEAT_SCROLLBIND
4028 /*
4029  * When "check" is FALSE, prepare for commands that scroll the window.
4030  * When "check" is TRUE, take care of scroll-binding after the window has
4031  * scrolled.  Called from normal_cmd() and edit().
4032  */
4033     void
4034 do_check_scrollbind(check)
4035     int		check;
4036 {
4037     static win_T	*old_curwin = NULL;
4038     static linenr_T	old_topline = 0;
4039 #ifdef FEAT_DIFF
4040     static int		old_topfill = 0;
4041 #endif
4042     static buf_T	*old_buf = NULL;
4043     static colnr_T	old_leftcol = 0;
4044 
4045     if (check && curwin->w_p_scb)
4046     {
4047 	/* If a ":syncbind" command was just used, don't scroll, only reset
4048 	 * the values. */
4049 	if (did_syncbind)
4050 	    did_syncbind = FALSE;
4051 	else if (curwin == old_curwin)
4052 	{
4053 	    /*
4054 	     * Synchronize other windows, as necessary according to
4055 	     * 'scrollbind'.  Don't do this after an ":edit" command, except
4056 	     * when 'diff' is set.
4057 	     */
4058 	    if ((curwin->w_buffer == old_buf
4059 #ifdef FEAT_DIFF
4060 			|| curwin->w_p_diff
4061 #endif
4062 		)
4063 		&& (curwin->w_topline != old_topline
4064 #ifdef FEAT_DIFF
4065 			|| curwin->w_topfill != old_topfill
4066 #endif
4067 			|| curwin->w_leftcol != old_leftcol))
4068 	    {
4069 		check_scrollbind(curwin->w_topline - old_topline,
4070 			(long)(curwin->w_leftcol - old_leftcol));
4071 	    }
4072 	}
4073 	else if (vim_strchr(p_sbo, 'j')) /* jump flag set in 'scrollopt' */
4074 	{
4075 	    /*
4076 	     * When switching between windows, make sure that the relative
4077 	     * vertical offset is valid for the new window.  The relative
4078 	     * offset is invalid whenever another 'scrollbind' window has
4079 	     * scrolled to a point that would force the current window to
4080 	     * scroll past the beginning or end of its buffer.  When the
4081 	     * resync is performed, some of the other 'scrollbind' windows may
4082 	     * need to jump so that the current window's relative position is
4083 	     * visible on-screen.
4084 	     */
4085 	    check_scrollbind(curwin->w_topline - curwin->w_scbind_pos, 0L);
4086 	}
4087 	curwin->w_scbind_pos = curwin->w_topline;
4088     }
4089 
4090     old_curwin = curwin;
4091     old_topline = curwin->w_topline;
4092 #ifdef FEAT_DIFF
4093     old_topfill = curwin->w_topfill;
4094 #endif
4095     old_buf = curwin->w_buffer;
4096     old_leftcol = curwin->w_leftcol;
4097 }
4098 
4099 /*
4100  * Synchronize any windows that have "scrollbind" set, based on the
4101  * number of rows by which the current window has changed
4102  * (1998-11-02 16:21:01  R. Edward Ralston <[email protected]>)
4103  */
4104     void
4105 check_scrollbind(topline_diff, leftcol_diff)
4106     linenr_T	topline_diff;
4107     long	leftcol_diff;
4108 {
4109     int		want_ver;
4110     int		want_hor;
4111     win_T	*old_curwin = curwin;
4112     buf_T	*old_curbuf = curbuf;
4113     int		old_VIsual_select = VIsual_select;
4114     int		old_VIsual_active = VIsual_active;
4115     colnr_T	tgt_leftcol = curwin->w_leftcol;
4116     long	topline;
4117     long	y;
4118 
4119     /*
4120      * check 'scrollopt' string for vertical and horizontal scroll options
4121      */
4122     want_ver = (vim_strchr(p_sbo, 'v') && topline_diff != 0);
4123 #ifdef FEAT_DIFF
4124     want_ver |= old_curwin->w_p_diff;
4125 #endif
4126     want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || topline_diff != 0));
4127 
4128     /*
4129      * loop through the scrollbound windows and scroll accordingly
4130      */
4131     VIsual_select = VIsual_active = 0;
4132     for (curwin = firstwin; curwin; curwin = curwin->w_next)
4133     {
4134 	curbuf = curwin->w_buffer;
4135 	/* skip original window  and windows with 'noscrollbind' */
4136 	if (curwin != old_curwin && curwin->w_p_scb)
4137 	{
4138 	    /*
4139 	     * do the vertical scroll
4140 	     */
4141 	    if (want_ver)
4142 	    {
4143 #ifdef FEAT_DIFF
4144 		if (old_curwin->w_p_diff && curwin->w_p_diff)
4145 		{
4146 		    diff_set_topline(old_curwin, curwin);
4147 		}
4148 		else
4149 #endif
4150 		{
4151 		    curwin->w_scbind_pos += topline_diff;
4152 		    topline = curwin->w_scbind_pos;
4153 		    if (topline > curbuf->b_ml.ml_line_count)
4154 			topline = curbuf->b_ml.ml_line_count;
4155 		    if (topline < 1)
4156 			topline = 1;
4157 
4158 		    y = topline - curwin->w_topline;
4159 		    if (y > 0)
4160 			scrollup(y, FALSE);
4161 		    else
4162 			scrolldown(-y, FALSE);
4163 		}
4164 
4165 		redraw_later(VALID);
4166 		cursor_correct();
4167 #ifdef FEAT_WINDOWS
4168 		curwin->w_redr_status = TRUE;
4169 #endif
4170 	    }
4171 
4172 	    /*
4173 	     * do the horizontal scroll
4174 	     */
4175 	    if (want_hor && curwin->w_leftcol != tgt_leftcol)
4176 	    {
4177 		curwin->w_leftcol = tgt_leftcol;
4178 		leftcol_changed();
4179 	    }
4180 	}
4181     }
4182 
4183     /*
4184      * reset current-window
4185      */
4186     VIsual_select = old_VIsual_select;
4187     VIsual_active = old_VIsual_active;
4188     curwin = old_curwin;
4189     curbuf = old_curbuf;
4190 }
4191 #endif /* #ifdef FEAT_SCROLLBIND */
4192 
4193 /*
4194  * Command character that's ignored.
4195  * Used for CTRL-Q and CTRL-S to avoid problems with terminals that use
4196  * xon/xoff.
4197  */
4198     static void
4199 nv_ignore(cap)
4200     cmdarg_T	*cap;
4201 {
4202     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
4203 }
4204 
4205 /*
4206  * Command character that doesn't do anything, but unlike nv_ignore() does
4207  * start edit().  Used for "startinsert" executed while starting up.
4208  */
4209     static void
4210 nv_nop(cap)
4211     cmdarg_T	*cap UNUSED;
4212 {
4213 }
4214 
4215 /*
4216  * Command character doesn't exist.
4217  */
4218     static void
4219 nv_error(cap)
4220     cmdarg_T	*cap;
4221 {
4222     clearopbeep(cap->oap);
4223 }
4224 
4225 /*
4226  * <Help> and <F1> commands.
4227  */
4228     static void
4229 nv_help(cap)
4230     cmdarg_T	*cap;
4231 {
4232     if (!checkclearopq(cap->oap))
4233 	ex_help(NULL);
4234 }
4235 
4236 /*
4237  * CTRL-A and CTRL-X: Add or subtract from letter or number under cursor.
4238  */
4239     static void
4240 nv_addsub(cap)
4241     cmdarg_T	*cap;
4242 {
4243     if (!checkclearopq(cap->oap)
4244 	    && do_addsub((int)cap->cmdchar, cap->count1) == OK)
4245 	prep_redo_cmd(cap);
4246 }
4247 
4248 /*
4249  * CTRL-F, CTRL-B, etc: Scroll page up or down.
4250  */
4251     static void
4252 nv_page(cap)
4253     cmdarg_T	*cap;
4254 {
4255     if (!checkclearop(cap->oap))
4256     {
4257 #ifdef FEAT_WINDOWS
4258 	if (mod_mask & MOD_MASK_CTRL)
4259 	{
4260 	    /* <C-PageUp>: tab page back; <C-PageDown>: tab page forward */
4261 	    if (cap->arg == BACKWARD)
4262 		goto_tabpage(-(int)cap->count1);
4263 	    else
4264 		goto_tabpage((int)cap->count0);
4265 	}
4266 	else
4267 #endif
4268 	(void)onepage(cap->arg, cap->count1);
4269     }
4270 }
4271 
4272 /*
4273  * Implementation of "gd" and "gD" command.
4274  */
4275     static void
4276 nv_gd(oap, nchar, thisblock)
4277     oparg_T	*oap;
4278     int		nchar;
4279     int		thisblock;	/* 1 for "1gd" and "1gD" */
4280 {
4281     int		len;
4282     char_u	*ptr;
4283 
4284     if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
4285 	    || find_decl(ptr, len, nchar == 'd', thisblock, 0) == FAIL)
4286 	clearopbeep(oap);
4287 #ifdef FEAT_FOLDING
4288     else if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
4289 	foldOpenCursor();
4290 #endif
4291 }
4292 
4293 /*
4294  * Search for variable declaration of "ptr[len]".
4295  * When "locally" is TRUE in the current function ("gd"), otherwise in the
4296  * current file ("gD").
4297  * When "thisblock" is TRUE check the {} block scope.
4298  * Return FAIL when not found.
4299  */
4300     int
4301 find_decl(ptr, len, locally, thisblock, searchflags)
4302     char_u	*ptr;
4303     int		len;
4304     int		locally;
4305     int		thisblock;
4306     int		searchflags;	/* flags passed to searchit() */
4307 {
4308     char_u	*pat;
4309     pos_T	old_pos;
4310     pos_T	par_pos;
4311     pos_T	found_pos;
4312     int		t;
4313     int		save_p_ws;
4314     int		save_p_scs;
4315     int		retval = OK;
4316     int		incll;
4317 
4318     if ((pat = alloc(len + 7)) == NULL)
4319 	return FAIL;
4320 
4321     /* Put "\V" before the pattern to avoid that the special meaning of "."
4322      * and "~" causes trouble. */
4323     sprintf((char *)pat, vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
4324 								    len, ptr);
4325     old_pos = curwin->w_cursor;
4326     save_p_ws = p_ws;
4327     save_p_scs = p_scs;
4328     p_ws = FALSE;	/* don't wrap around end of file now */
4329     p_scs = FALSE;	/* don't switch ignorecase off now */
4330 
4331     /*
4332      * With "gD" go to line 1.
4333      * With "gd" Search back for the start of the current function, then go
4334      * back until a blank line.  If this fails go to line 1.
4335      */
4336     if (!locally || !findpar(&incll, BACKWARD, 1L, '{', FALSE))
4337     {
4338 	setpcmark();			/* Set in findpar() otherwise */
4339 	curwin->w_cursor.lnum = 1;
4340 	par_pos = curwin->w_cursor;
4341     }
4342     else
4343     {
4344 	par_pos = curwin->w_cursor;
4345 	while (curwin->w_cursor.lnum > 1 && *skipwhite(ml_get_curline()) != NUL)
4346 	    --curwin->w_cursor.lnum;
4347     }
4348     curwin->w_cursor.col = 0;
4349 
4350     /* Search forward for the identifier, ignore comment lines. */
4351     clearpos(&found_pos);
4352     for (;;)
4353     {
4354 	t = searchit(curwin, curbuf, &curwin->w_cursor, FORWARD,
4355 			    pat, 1L, searchflags, RE_LAST, (linenr_T)0, NULL);
4356 	if (curwin->w_cursor.lnum >= old_pos.lnum)
4357 	    t = FAIL;	/* match after start is failure too */
4358 
4359 	if (thisblock && t != FAIL)
4360 	{
4361 	    pos_T	*pos;
4362 
4363 	    /* Check that the block the match is in doesn't end before the
4364 	     * position where we started the search from. */
4365 	    if ((pos = findmatchlimit(NULL, '}', FM_FORWARD,
4366 		     (int)(old_pos.lnum - curwin->w_cursor.lnum + 1))) != NULL
4367 		    && pos->lnum < old_pos.lnum)
4368 		continue;
4369 	}
4370 
4371 	if (t == FAIL)
4372 	{
4373 	    /* If we previously found a valid position, use it. */
4374 	    if (found_pos.lnum != 0)
4375 	    {
4376 		curwin->w_cursor = found_pos;
4377 		t = OK;
4378 	    }
4379 	    break;
4380 	}
4381 #ifdef FEAT_COMMENTS
4382 	if (get_leader_len(ml_get_curline(), NULL, FALSE, TRUE) > 0)
4383 	{
4384 	    /* Ignore this line, continue at start of next line. */
4385 	    ++curwin->w_cursor.lnum;
4386 	    curwin->w_cursor.col = 0;
4387 	    continue;
4388 	}
4389 #endif
4390 	if (!locally)	/* global search: use first match found */
4391 	    break;
4392 	if (curwin->w_cursor.lnum >= par_pos.lnum)
4393 	{
4394 	    /* If we previously found a valid position, use it. */
4395 	    if (found_pos.lnum != 0)
4396 		curwin->w_cursor = found_pos;
4397 	    break;
4398 	}
4399 
4400 	/* For finding a local variable and the match is before the "{" search
4401 	 * to find a later match.  For K&R style function declarations this
4402 	 * skips the function header without types. */
4403 	found_pos = curwin->w_cursor;
4404     }
4405 
4406     if (t == FAIL)
4407     {
4408 	retval = FAIL;
4409 	curwin->w_cursor = old_pos;
4410     }
4411     else
4412     {
4413 	curwin->w_set_curswant = TRUE;
4414 	/* "n" searches forward now */
4415 	reset_search_dir();
4416     }
4417 
4418     vim_free(pat);
4419     p_ws = save_p_ws;
4420     p_scs = save_p_scs;
4421 
4422     return retval;
4423 }
4424 
4425 /*
4426  * Move 'dist' lines in direction 'dir', counting lines by *screen*
4427  * lines rather than lines in the file.
4428  * 'dist' must be positive.
4429  *
4430  * Return OK if able to move cursor, FAIL otherwise.
4431  */
4432     static int
4433 nv_screengo(oap, dir, dist)
4434     oparg_T	*oap;
4435     int		dir;
4436     long	dist;
4437 {
4438     int		linelen = linetabsize(ml_get_curline());
4439     int		retval = OK;
4440     int		atend = FALSE;
4441     int		n;
4442     int		col_off1;	/* margin offset for first screen line */
4443     int		col_off2;	/* margin offset for wrapped screen line */
4444     int		width1;		/* text width for first screen line */
4445     int		width2;		/* test width for wrapped screen line */
4446 
4447     oap->motion_type = MCHAR;
4448     oap->inclusive = (curwin->w_curswant == MAXCOL);
4449 
4450     col_off1 = curwin_col_off();
4451     col_off2 = col_off1 - curwin_col_off2();
4452     width1 = W_WIDTH(curwin) - col_off1;
4453     width2 = W_WIDTH(curwin) - col_off2;
4454     if (width2 == 0)
4455 	width2 = 1; /* avoid divide by zero */
4456 
4457 #ifdef FEAT_VERTSPLIT
4458     if (curwin->w_width != 0)
4459     {
4460 #endif
4461       /*
4462        * Instead of sticking at the last character of the buffer line we
4463        * try to stick in the last column of the screen.
4464        */
4465       if (curwin->w_curswant == MAXCOL)
4466       {
4467 	atend = TRUE;
4468 	validate_virtcol();
4469 	if (width1 <= 0)
4470 	    curwin->w_curswant = 0;
4471 	else
4472 	{
4473 	    curwin->w_curswant = width1 - 1;
4474 	    if (curwin->w_virtcol > curwin->w_curswant)
4475 		curwin->w_curswant += ((curwin->w_virtcol
4476 			     - curwin->w_curswant - 1) / width2 + 1) * width2;
4477 	}
4478       }
4479       else
4480       {
4481 	if (linelen > width1)
4482 	    n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4483 	else
4484 	    n = width1;
4485 	if (curwin->w_curswant > (colnr_T)n + 1)
4486 	    curwin->w_curswant -= ((curwin->w_curswant - n) / width2 + 1)
4487 								     * width2;
4488       }
4489 
4490       while (dist--)
4491       {
4492 	if (dir == BACKWARD)
4493 	{
4494 	    if ((long)curwin->w_curswant >= width2)
4495 		/* move back within line */
4496 		curwin->w_curswant -= width2;
4497 	    else
4498 	    {
4499 		/* to previous line */
4500 		if (curwin->w_cursor.lnum == 1)
4501 		{
4502 		    retval = FAIL;
4503 		    break;
4504 		}
4505 		--curwin->w_cursor.lnum;
4506 #ifdef FEAT_FOLDING
4507 		/* Move to the start of a closed fold.  Don't do that when
4508 		 * 'foldopen' contains "all": it will open in a moment. */
4509 		if (!(fdo_flags & FDO_ALL))
4510 		    (void)hasFolding(curwin->w_cursor.lnum,
4511 						&curwin->w_cursor.lnum, NULL);
4512 #endif
4513 		linelen = linetabsize(ml_get_curline());
4514 		if (linelen > width1)
4515 		    curwin->w_curswant += (((linelen - width1 - 1) / width2)
4516 								+ 1) * width2;
4517 	    }
4518 	}
4519 	else /* dir == FORWARD */
4520 	{
4521 	    if (linelen > width1)
4522 		n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4523 	    else
4524 		n = width1;
4525 	    if (curwin->w_curswant + width2 < (colnr_T)n)
4526 		/* move forward within line */
4527 		curwin->w_curswant += width2;
4528 	    else
4529 	    {
4530 		/* to next line */
4531 #ifdef FEAT_FOLDING
4532 		/* Move to the end of a closed fold. */
4533 		(void)hasFolding(curwin->w_cursor.lnum, NULL,
4534 						      &curwin->w_cursor.lnum);
4535 #endif
4536 		if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4537 		{
4538 		    retval = FAIL;
4539 		    break;
4540 		}
4541 		curwin->w_cursor.lnum++;
4542 		curwin->w_curswant %= width2;
4543 		linelen = linetabsize(ml_get_curline());
4544 	    }
4545 	}
4546       }
4547 #ifdef FEAT_VERTSPLIT
4548     }
4549 #endif
4550 
4551     if (virtual_active() && atend)
4552 	coladvance(MAXCOL);
4553     else
4554 	coladvance(curwin->w_curswant);
4555 
4556 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
4557     if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
4558     {
4559 	colnr_T virtcol;
4560 
4561 	/*
4562 	 * Check for landing on a character that got split at the end of the
4563 	 * last line.  We want to advance a screenline, not end up in the same
4564 	 * screenline or move two screenlines.
4565 	 */
4566 	validate_virtcol();
4567 	virtcol = curwin->w_virtcol;
4568 # if defined(FEAT_LINEBREAK)
4569 	if (virtcol > (colnr_T)width1 && *p_sbr != NUL)
4570 	    virtcol -= vim_strsize(p_sbr);
4571 # endif
4572 
4573 	if (virtcol > curwin->w_curswant
4574 		&& (curwin->w_curswant < (colnr_T)width1
4575 		    ? (curwin->w_curswant > (colnr_T)width1 / 2)
4576 		    : ((curwin->w_curswant - width1) % width2
4577 						      > (colnr_T)width2 / 2)))
4578 	    --curwin->w_cursor.col;
4579     }
4580 #endif
4581 
4582     if (atend)
4583 	curwin->w_curswant = MAXCOL;	    /* stick in the last column */
4584 
4585     return retval;
4586 }
4587 
4588 #ifdef FEAT_MOUSE
4589 /*
4590  * Mouse scroll wheel: Default action is to scroll three lines, or one page
4591  * when Shift or Ctrl is used.
4592  * K_MOUSEUP (cap->arg == 1) or K_MOUSEDOWN (cap->arg == 0) or
4593  * K_MOUSELEFT (cap->arg == -1) or K_MOUSERIGHT (cap->arg == -2)
4594  */
4595     static void
4596 nv_mousescroll(cap)
4597     cmdarg_T	*cap;
4598 {
4599 # ifdef FEAT_WINDOWS
4600     win_T *old_curwin = curwin;
4601 
4602     if (mouse_row >= 0 && mouse_col >= 0)
4603     {
4604 	int row, col;
4605 
4606 	row = mouse_row;
4607 	col = mouse_col;
4608 
4609 	/* find the window at the pointer coordinates */
4610 	curwin = mouse_find_win(&row, &col);
4611 	curbuf = curwin->w_buffer;
4612     }
4613 # endif
4614 
4615     if (cap->arg == MSCR_UP || cap->arg == MSCR_DOWN)
4616     {
4617 	if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4618 	{
4619 	    (void)onepage(cap->arg ? FORWARD : BACKWARD, 1L);
4620 	}
4621 	else
4622 	{
4623 	    cap->count1 = 3;
4624 	    cap->count0 = 3;
4625 	    nv_scroll_line(cap);
4626 	}
4627     }
4628 # ifdef FEAT_GUI
4629     else
4630     {
4631 	/* Horizontal scroll - only allowed when 'wrap' is disabled */
4632 	if (!curwin->w_p_wrap)
4633 	{
4634 	    int val, step = 6;
4635 
4636 	    if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4637 		step = W_WIDTH(curwin);
4638 	    val = curwin->w_leftcol + (cap->arg == MSCR_RIGHT ? -step : +step);
4639 	    if (val < 0)
4640 		val = 0;
4641 
4642 	    gui_do_horiz_scroll(val, TRUE);
4643 	}
4644     }
4645 # endif
4646 
4647 # ifdef FEAT_WINDOWS
4648     curwin->w_redr_status = TRUE;
4649 
4650     curwin = old_curwin;
4651     curbuf = curwin->w_buffer;
4652 # endif
4653 }
4654 
4655 /*
4656  * Mouse clicks and drags.
4657  */
4658     static void
4659 nv_mouse(cap)
4660     cmdarg_T	*cap;
4661 {
4662     (void)do_mouse(cap->oap, cap->cmdchar, BACKWARD, cap->count1, 0);
4663 }
4664 #endif
4665 
4666 /*
4667  * Handle CTRL-E and CTRL-Y commands: scroll a line up or down.
4668  * cap->arg must be TRUE for CTRL-E.
4669  */
4670     static void
4671 nv_scroll_line(cap)
4672     cmdarg_T	*cap;
4673 {
4674     if (!checkclearop(cap->oap))
4675 	scroll_redraw(cap->arg, cap->count1);
4676 }
4677 
4678 /*
4679  * Scroll "count" lines up or down, and redraw.
4680  */
4681     void
4682 scroll_redraw(up, count)
4683     int		up;
4684     long	count;
4685 {
4686     linenr_T	prev_topline = curwin->w_topline;
4687 #ifdef FEAT_DIFF
4688     int		prev_topfill = curwin->w_topfill;
4689 #endif
4690     linenr_T	prev_lnum = curwin->w_cursor.lnum;
4691 
4692     if (up)
4693 	scrollup(count, TRUE);
4694     else
4695 	scrolldown(count, TRUE);
4696     if (p_so)
4697     {
4698 	/* Adjust the cursor position for 'scrolloff'.  Mark w_topline as
4699 	 * valid, otherwise the screen jumps back at the end of the file. */
4700 	cursor_correct();
4701 	check_cursor_moved(curwin);
4702 	curwin->w_valid |= VALID_TOPLINE;
4703 
4704 	/* If moved back to where we were, at least move the cursor, otherwise
4705 	 * we get stuck at one position.  Don't move the cursor up if the
4706 	 * first line of the buffer is already on the screen */
4707 	while (curwin->w_topline == prev_topline
4708 #ifdef FEAT_DIFF
4709 		&& curwin->w_topfill == prev_topfill
4710 #endif
4711 		)
4712 	{
4713 	    if (up)
4714 	    {
4715 		if (curwin->w_cursor.lnum > prev_lnum
4716 			|| cursor_down(1L, FALSE) == FAIL)
4717 		    break;
4718 	    }
4719 	    else
4720 	    {
4721 		if (curwin->w_cursor.lnum < prev_lnum
4722 			|| prev_topline == 1L
4723 			|| cursor_up(1L, FALSE) == FAIL)
4724 		    break;
4725 	    }
4726 	    /* Mark w_topline as valid, otherwise the screen jumps back at the
4727 	     * end of the file. */
4728 	    check_cursor_moved(curwin);
4729 	    curwin->w_valid |= VALID_TOPLINE;
4730 	}
4731     }
4732     if (curwin->w_cursor.lnum != prev_lnum)
4733 	coladvance(curwin->w_curswant);
4734     redraw_later(VALID);
4735 }
4736 
4737 /*
4738  * Commands that start with "z".
4739  */
4740     static void
4741 nv_zet(cap)
4742     cmdarg_T  *cap;
4743 {
4744     long	n;
4745     colnr_T	col;
4746     int		nchar = cap->nchar;
4747 #ifdef FEAT_FOLDING
4748     long	old_fdl = curwin->w_p_fdl;
4749     int		old_fen = curwin->w_p_fen;
4750 #endif
4751 #ifdef FEAT_SPELL
4752     int		undo = FALSE;
4753 #endif
4754 
4755     if (VIM_ISDIGIT(nchar))
4756     {
4757 	/*
4758 	 * "z123{nchar}": edit the count before obtaining {nchar}
4759 	 */
4760 	if (checkclearop(cap->oap))
4761 	    return;
4762 	n = nchar - '0';
4763 	for (;;)
4764 	{
4765 #ifdef USE_ON_FLY_SCROLL
4766 	    dont_scroll = TRUE;		/* disallow scrolling here */
4767 #endif
4768 	    ++no_mapping;
4769 	    ++allow_keys;   /* no mapping for nchar, but allow key codes */
4770 	    nchar = plain_vgetc();
4771 	    LANGMAP_ADJUST(nchar, TRUE);
4772 	    --no_mapping;
4773 	    --allow_keys;
4774 #ifdef FEAT_CMDL_INFO
4775 	    (void)add_to_showcmd(nchar);
4776 #endif
4777 	    if (nchar == K_DEL || nchar == K_KDEL)
4778 		n /= 10;
4779 	    else if (VIM_ISDIGIT(nchar))
4780 		n = n * 10 + (nchar - '0');
4781 	    else if (nchar == CAR)
4782 	    {
4783 #ifdef FEAT_GUI
4784 		need_mouse_correct = TRUE;
4785 #endif
4786 		win_setheight((int)n);
4787 		break;
4788 	    }
4789 	    else if (nchar == 'l'
4790 		    || nchar == 'h'
4791 		    || nchar == K_LEFT
4792 		    || nchar == K_RIGHT)
4793 	    {
4794 		cap->count1 = n ? n * cap->count1 : cap->count1;
4795 		goto dozet;
4796 	    }
4797 	    else
4798 	    {
4799 		clearopbeep(cap->oap);
4800 		break;
4801 	    }
4802 	}
4803 	cap->oap->op_type = OP_NOP;
4804 	return;
4805     }
4806 
4807 dozet:
4808     if (
4809 #ifdef FEAT_FOLDING
4810 	    /* "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
4811 	     * and "zC" only in Visual mode.  "zj" and "zk" are motion
4812 	     * commands. */
4813 	    cap->nchar != 'f' && cap->nchar != 'F'
4814 	    && !(VIsual_active && vim_strchr((char_u *)"dcCoO", cap->nchar))
4815 	    && cap->nchar != 'j' && cap->nchar != 'k'
4816 	    &&
4817 #endif
4818 	    checkclearop(cap->oap))
4819 	return;
4820 
4821     /*
4822      * For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
4823      * If line number given, set cursor.
4824      */
4825     if ((vim_strchr((char_u *)"+\r\nt.z^-b", nchar) != NULL)
4826 	    && cap->count0
4827 	    && cap->count0 != curwin->w_cursor.lnum)
4828     {
4829 	setpcmark();
4830 	if (cap->count0 > curbuf->b_ml.ml_line_count)
4831 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4832 	else
4833 	    curwin->w_cursor.lnum = cap->count0;
4834 	check_cursor_col();
4835     }
4836 
4837     switch (nchar)
4838     {
4839 		/* "z+", "z<CR>" and "zt": put cursor at top of screen */
4840     case '+':
4841 		if (cap->count0 == 0)
4842 		{
4843 		    /* No count given: put cursor at the line below screen */
4844 		    validate_botline();	/* make sure w_botline is valid */
4845 		    if (curwin->w_botline > curbuf->b_ml.ml_line_count)
4846 			curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4847 		    else
4848 			curwin->w_cursor.lnum = curwin->w_botline;
4849 		}
4850 		/* FALLTHROUGH */
4851     case NL:
4852     case CAR:
4853     case K_KENTER:
4854 		beginline(BL_WHITE | BL_FIX);
4855 		/* FALLTHROUGH */
4856 
4857     case 't':	scroll_cursor_top(0, TRUE);
4858 		redraw_later(VALID);
4859 		break;
4860 
4861 		/* "z." and "zz": put cursor in middle of screen */
4862     case '.':	beginline(BL_WHITE | BL_FIX);
4863 		/* FALLTHROUGH */
4864 
4865     case 'z':	scroll_cursor_halfway(TRUE);
4866 		redraw_later(VALID);
4867 		break;
4868 
4869 		/* "z^", "z-" and "zb": put cursor at bottom of screen */
4870     case '^':	/* Strange Vi behavior: <count>z^ finds line at top of window
4871 		 * when <count> is at bottom of window, and puts that one at
4872 		 * bottom of window. */
4873 		if (cap->count0 != 0)
4874 		{
4875 		    scroll_cursor_bot(0, TRUE);
4876 		    curwin->w_cursor.lnum = curwin->w_topline;
4877 		}
4878 		else if (curwin->w_topline == 1)
4879 		    curwin->w_cursor.lnum = 1;
4880 		else
4881 		    curwin->w_cursor.lnum = curwin->w_topline - 1;
4882 		/* FALLTHROUGH */
4883     case '-':
4884 		beginline(BL_WHITE | BL_FIX);
4885 		/* FALLTHROUGH */
4886 
4887     case 'b':	scroll_cursor_bot(0, TRUE);
4888 		redraw_later(VALID);
4889 		break;
4890 
4891 		/* "zH" - scroll screen right half-page */
4892     case 'H':
4893 		cap->count1 *= W_WIDTH(curwin) / 2;
4894 		/* FALLTHROUGH */
4895 
4896 		/* "zh" - scroll screen to the right */
4897     case 'h':
4898     case K_LEFT:
4899 		if (!curwin->w_p_wrap)
4900 		{
4901 		    if ((colnr_T)cap->count1 > curwin->w_leftcol)
4902 			curwin->w_leftcol = 0;
4903 		    else
4904 			curwin->w_leftcol -= (colnr_T)cap->count1;
4905 		    leftcol_changed();
4906 		}
4907 		break;
4908 
4909 		/* "zL" - scroll screen left half-page */
4910     case 'L':	cap->count1 *= W_WIDTH(curwin) / 2;
4911 		/* FALLTHROUGH */
4912 
4913 		/* "zl" - scroll screen to the left */
4914     case 'l':
4915     case K_RIGHT:
4916 		if (!curwin->w_p_wrap)
4917 		{
4918 		    /* scroll the window left */
4919 		    curwin->w_leftcol += (colnr_T)cap->count1;
4920 		    leftcol_changed();
4921 		}
4922 		break;
4923 
4924 		/* "zs" - scroll screen, cursor at the start */
4925     case 's':	if (!curwin->w_p_wrap)
4926 		{
4927 #ifdef FEAT_FOLDING
4928 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4929 			col = 0;	/* like the cursor is in col 0 */
4930 		    else
4931 #endif
4932 		    getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
4933 		    if ((long)col > p_siso)
4934 			col -= p_siso;
4935 		    else
4936 			col = 0;
4937 		    if (curwin->w_leftcol != col)
4938 		    {
4939 			curwin->w_leftcol = col;
4940 			redraw_later(NOT_VALID);
4941 		    }
4942 		}
4943 		break;
4944 
4945 		/* "ze" - scroll screen, cursor at the end */
4946     case 'e':	if (!curwin->w_p_wrap)
4947 		{
4948 #ifdef FEAT_FOLDING
4949 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4950 			col = 0;	/* like the cursor is in col 0 */
4951 		    else
4952 #endif
4953 		    getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
4954 		    n = W_WIDTH(curwin) - curwin_col_off();
4955 		    if ((long)col + p_siso < n)
4956 			col = 0;
4957 		    else
4958 			col = col + p_siso - n + 1;
4959 		    if (curwin->w_leftcol != col)
4960 		    {
4961 			curwin->w_leftcol = col;
4962 			redraw_later(NOT_VALID);
4963 		    }
4964 		}
4965 		break;
4966 
4967 #ifdef FEAT_FOLDING
4968 		/* "zF": create fold command */
4969 		/* "zf": create fold operator */
4970     case 'F':
4971     case 'f':   if (foldManualAllowed(TRUE))
4972 		{
4973 		    cap->nchar = 'f';
4974 		    nv_operator(cap);
4975 		    curwin->w_p_fen = TRUE;
4976 
4977 		    /* "zF" is like "zfzf" */
4978 		    if (nchar == 'F' && cap->oap->op_type == OP_FOLD)
4979 		    {
4980 			nv_operator(cap);
4981 			finish_op = TRUE;
4982 		    }
4983 		}
4984 		else
4985 		    clearopbeep(cap->oap);
4986 		break;
4987 
4988 		/* "zd": delete fold at cursor */
4989 		/* "zD": delete fold at cursor recursively */
4990     case 'd':
4991     case 'D':	if (foldManualAllowed(FALSE))
4992 		{
4993 		    if (VIsual_active)
4994 			nv_operator(cap);
4995 		    else
4996 			deleteFold(curwin->w_cursor.lnum,
4997 				  curwin->w_cursor.lnum, nchar == 'D', FALSE);
4998 		}
4999 		break;
5000 
5001 		/* "zE": erase all folds */
5002     case 'E':	if (foldmethodIsManual(curwin))
5003 		{
5004 		    clearFolding(curwin);
5005 		    changed_window_setting();
5006 		}
5007 		else if (foldmethodIsMarker(curwin))
5008 		    deleteFold((linenr_T)1, curbuf->b_ml.ml_line_count,
5009 								 TRUE, FALSE);
5010 		else
5011 		    EMSG(_("E352: Cannot erase folds with current 'foldmethod'"));
5012 		break;
5013 
5014 		/* "zn": fold none: reset 'foldenable' */
5015     case 'n':	curwin->w_p_fen = FALSE;
5016 		break;
5017 
5018 		/* "zN": fold Normal: set 'foldenable' */
5019     case 'N':	curwin->w_p_fen = TRUE;
5020 		break;
5021 
5022 		/* "zi": invert folding: toggle 'foldenable' */
5023     case 'i':	curwin->w_p_fen = !curwin->w_p_fen;
5024 		break;
5025 
5026 		/* "za": open closed fold or close open fold at cursor */
5027     case 'a':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
5028 		    openFold(curwin->w_cursor.lnum, cap->count1);
5029 		else
5030 		{
5031 		    closeFold(curwin->w_cursor.lnum, cap->count1);
5032 		    curwin->w_p_fen = TRUE;
5033 		}
5034 		break;
5035 
5036 		/* "zA": open fold at cursor recursively */
5037     case 'A':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
5038 		    openFoldRecurse(curwin->w_cursor.lnum);
5039 		else
5040 		{
5041 		    closeFoldRecurse(curwin->w_cursor.lnum);
5042 		    curwin->w_p_fen = TRUE;
5043 		}
5044 		break;
5045 
5046 		/* "zo": open fold at cursor or Visual area */
5047     case 'o':	if (VIsual_active)
5048 		    nv_operator(cap);
5049 		else
5050 		    openFold(curwin->w_cursor.lnum, cap->count1);
5051 		break;
5052 
5053 		/* "zO": open fold recursively */
5054     case 'O':	if (VIsual_active)
5055 		    nv_operator(cap);
5056 		else
5057 		    openFoldRecurse(curwin->w_cursor.lnum);
5058 		break;
5059 
5060 		/* "zc": close fold at cursor or Visual area */
5061     case 'c':	if (VIsual_active)
5062 		    nv_operator(cap);
5063 		else
5064 		    closeFold(curwin->w_cursor.lnum, cap->count1);
5065 		curwin->w_p_fen = TRUE;
5066 		break;
5067 
5068 		/* "zC": close fold recursively */
5069     case 'C':	if (VIsual_active)
5070 		    nv_operator(cap);
5071 		else
5072 		    closeFoldRecurse(curwin->w_cursor.lnum);
5073 		curwin->w_p_fen = TRUE;
5074 		break;
5075 
5076 		/* "zv": open folds at the cursor */
5077     case 'v':	foldOpenCursor();
5078 		break;
5079 
5080 		/* "zx": re-apply 'foldlevel' and open folds at the cursor */
5081     case 'x':	curwin->w_p_fen = TRUE;
5082 		curwin->w_foldinvalid = TRUE;	/* recompute folds */
5083 		newFoldLevel();			/* update right now */
5084 		foldOpenCursor();
5085 		break;
5086 
5087 		/* "zX": undo manual opens/closes, re-apply 'foldlevel' */
5088     case 'X':	curwin->w_p_fen = TRUE;
5089 		curwin->w_foldinvalid = TRUE;	/* recompute folds */
5090 		old_fdl = -1;			/* force an update */
5091 		break;
5092 
5093 		/* "zm": fold more */
5094     case 'm':	if (curwin->w_p_fdl > 0)
5095 		{
5096 		    curwin->w_p_fdl -= cap->count1;
5097 		    if (curwin->w_p_fdl < 0)
5098 			curwin->w_p_fdl = 0;
5099 		}
5100 		old_fdl = -1;		/* force an update */
5101 		curwin->w_p_fen = TRUE;
5102 		break;
5103 
5104 		/* "zM": close all folds */
5105     case 'M':	curwin->w_p_fdl = 0;
5106 		old_fdl = -1;		/* force an update */
5107 		curwin->w_p_fen = TRUE;
5108 		break;
5109 
5110 		/* "zr": reduce folding */
5111     case 'r':	curwin->w_p_fdl += cap->count1;
5112 		{
5113 		    int d = getDeepestNesting();
5114 
5115 		    if (curwin->w_p_fdl >= d)
5116 			curwin->w_p_fdl = d;
5117 		}
5118 		break;
5119 
5120 		/* "zR": open all folds */
5121     case 'R':	curwin->w_p_fdl = getDeepestNesting();
5122 		old_fdl = -1;		/* force an update */
5123 		break;
5124 
5125     case 'j':	/* "zj" move to next fold downwards */
5126     case 'k':	/* "zk" move to next fold upwards */
5127 		if (foldMoveTo(TRUE, nchar == 'j' ? FORWARD : BACKWARD,
5128 							  cap->count1) == FAIL)
5129 		    clearopbeep(cap->oap);
5130 		break;
5131 
5132 #endif /* FEAT_FOLDING */
5133 
5134 #ifdef FEAT_SPELL
5135     case 'u':	/* "zug" and "zuw": undo "zg" and "zw" */
5136 		++no_mapping;
5137 		++allow_keys;   /* no mapping for nchar, but allow key codes */
5138 		nchar = plain_vgetc();
5139 		LANGMAP_ADJUST(nchar, TRUE);
5140 		--no_mapping;
5141 		--allow_keys;
5142 #ifdef FEAT_CMDL_INFO
5143 		(void)add_to_showcmd(nchar);
5144 #endif
5145 		if (vim_strchr((char_u *)"gGwW", nchar) == NULL)
5146 		{
5147 		    clearopbeep(cap->oap);
5148 		    break;
5149 		}
5150 		undo = TRUE;
5151 		/*FALLTHROUGH*/
5152 
5153     case 'g':	/* "zg": add good word to word list */
5154     case 'w':	/* "zw": add wrong word to word list */
5155     case 'G':	/* "zG": add good word to temp word list */
5156     case 'W':	/* "zW": add wrong word to temp word list */
5157 		{
5158 		    char_u  *ptr = NULL;
5159 		    int	    len;
5160 
5161 		    if (checkclearop(cap->oap))
5162 			break;
5163 		    if (VIsual_active && get_visual_text(cap, &ptr, &len)
5164 								      == FAIL)
5165 			return;
5166 		    if (ptr == NULL)
5167 		    {
5168 			pos_T	pos = curwin->w_cursor;
5169 
5170 			/* Find bad word under the cursor.  When 'spell' is
5171 			 * off this fails and find_ident_under_cursor() is
5172 			 * used below. */
5173 			emsg_off++;
5174 			len = spell_move_to(curwin, FORWARD, TRUE, TRUE, NULL);
5175 			emsg_off--;
5176 			if (len != 0 && curwin->w_cursor.col <= pos.col)
5177 			    ptr = ml_get_pos(&curwin->w_cursor);
5178 			curwin->w_cursor = pos;
5179 		    }
5180 
5181 		    if (ptr == NULL && (len = find_ident_under_cursor(&ptr,
5182 							    FIND_IDENT)) == 0)
5183 			return;
5184 		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W',
5185 					    (nchar == 'G' || nchar == 'W')
5186 						       ? 0 : (int)cap->count1,
5187 					    undo);
5188 		}
5189 		break;
5190 
5191     case '=':	/* "z=": suggestions for a badly spelled word  */
5192 		if (!checkclearop(cap->oap))
5193 		    spell_suggest((int)cap->count0);
5194 		break;
5195 #endif
5196 
5197     default:	clearopbeep(cap->oap);
5198     }
5199 
5200 #ifdef FEAT_FOLDING
5201     /* Redraw when 'foldenable' changed */
5202     if (old_fen != curwin->w_p_fen)
5203     {
5204 # ifdef FEAT_DIFF
5205 	win_T	    *wp;
5206 
5207 	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
5208 	{
5209 	    /* Adjust 'foldenable' in diff-synced windows. */
5210 	    FOR_ALL_WINDOWS(wp)
5211 	    {
5212 		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
5213 		{
5214 		    wp->w_p_fen = curwin->w_p_fen;
5215 		    changed_window_setting_win(wp);
5216 		}
5217 	    }
5218 	}
5219 # endif
5220 	changed_window_setting();
5221     }
5222 
5223     /* Redraw when 'foldlevel' changed. */
5224     if (old_fdl != curwin->w_p_fdl)
5225 	newFoldLevel();
5226 #endif
5227 }
5228 
5229 #ifdef FEAT_GUI
5230 /*
5231  * Vertical scrollbar movement.
5232  */
5233     static void
5234 nv_ver_scrollbar(cap)
5235     cmdarg_T	*cap;
5236 {
5237     if (cap->oap->op_type != OP_NOP)
5238 	clearopbeep(cap->oap);
5239 
5240     /* Even if an operator was pending, we still want to scroll */
5241     gui_do_scroll();
5242 }
5243 
5244 /*
5245  * Horizontal scrollbar movement.
5246  */
5247     static void
5248 nv_hor_scrollbar(cap)
5249     cmdarg_T	*cap;
5250 {
5251     if (cap->oap->op_type != OP_NOP)
5252 	clearopbeep(cap->oap);
5253 
5254     /* Even if an operator was pending, we still want to scroll */
5255     gui_do_horiz_scroll(scrollbar_value, FALSE);
5256 }
5257 #endif
5258 
5259 #if defined(FEAT_GUI_TABLINE) || defined(PROTO)
5260 /*
5261  * Click in GUI tab.
5262  */
5263     static void
5264 nv_tabline(cap)
5265     cmdarg_T	*cap;
5266 {
5267     if (cap->oap->op_type != OP_NOP)
5268 	clearopbeep(cap->oap);
5269 
5270     /* Even if an operator was pending, we still want to jump tabs. */
5271     goto_tabpage(current_tab);
5272 }
5273 
5274 /*
5275  * Selected item in tab line menu.
5276  */
5277     static void
5278 nv_tabmenu(cap)
5279     cmdarg_T	*cap;
5280 {
5281     if (cap->oap->op_type != OP_NOP)
5282 	clearopbeep(cap->oap);
5283 
5284     /* Even if an operator was pending, we still want to jump tabs. */
5285     handle_tabmenu();
5286 }
5287 
5288 /*
5289  * Handle selecting an item of the GUI tab line menu.
5290  * Used in Normal and Insert mode.
5291  */
5292     void
5293 handle_tabmenu()
5294 {
5295     switch (current_tabmenu)
5296     {
5297 	case TABLINE_MENU_CLOSE:
5298 	    if (current_tab == 0)
5299 		do_cmdline_cmd((char_u *)"tabclose");
5300 	    else
5301 	    {
5302 		vim_snprintf((char *)IObuff, IOSIZE, "tabclose %d",
5303 								 current_tab);
5304 		do_cmdline_cmd(IObuff);
5305 	    }
5306 	    break;
5307 
5308 	case TABLINE_MENU_NEW:
5309 	    if (current_tab == 0)
5310 		do_cmdline_cmd((char_u *)"$tabnew");
5311 	    else
5312 	    {
5313 		vim_snprintf((char *)IObuff, IOSIZE, "%dtabnew",
5314 							     current_tab - 1);
5315 		do_cmdline_cmd(IObuff);
5316 	    }
5317 	    break;
5318 
5319 	case TABLINE_MENU_OPEN:
5320 	    if (current_tab == 0)
5321 		do_cmdline_cmd((char_u *)"browse $tabnew");
5322 	    else
5323 	    {
5324 		vim_snprintf((char *)IObuff, IOSIZE, "browse %dtabnew",
5325 							     current_tab - 1);
5326 		do_cmdline_cmd(IObuff);
5327 	    }
5328 	    break;
5329     }
5330 }
5331 #endif
5332 
5333 /*
5334  * "Q" command.
5335  */
5336     static void
5337 nv_exmode(cap)
5338     cmdarg_T	*cap;
5339 {
5340     /*
5341      * Ignore 'Q' in Visual mode, just give a beep.
5342      */
5343     if (VIsual_active)
5344 	vim_beep();
5345     else if (!checkclearop(cap->oap))
5346 	do_exmode(FALSE);
5347 }
5348 
5349 /*
5350  * Handle a ":" command.
5351  */
5352     static void
5353 nv_colon(cap)
5354     cmdarg_T  *cap;
5355 {
5356     int	    old_p_im;
5357     int	    cmd_result;
5358 
5359     if (VIsual_active)
5360 	nv_operator(cap);
5361     else
5362     {
5363 	if (cap->oap->op_type != OP_NOP)
5364 	{
5365 	    /* Using ":" as a movement is characterwise exclusive. */
5366 	    cap->oap->motion_type = MCHAR;
5367 	    cap->oap->inclusive = FALSE;
5368 	}
5369 	else if (cap->count0)
5370 	{
5371 	    /* translate "count:" into ":.,.+(count - 1)" */
5372 	    stuffcharReadbuff('.');
5373 	    if (cap->count0 > 1)
5374 	    {
5375 		stuffReadbuff((char_u *)",.+");
5376 		stuffnumReadbuff((long)cap->count0 - 1L);
5377 	    }
5378 	}
5379 
5380 	/* When typing, don't type below an old message */
5381 	if (KeyTyped)
5382 	    compute_cmdrow();
5383 
5384 	old_p_im = p_im;
5385 
5386 	/* get a command line and execute it */
5387 	cmd_result = do_cmdline(NULL, getexline, NULL,
5388 			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
5389 
5390 	/* If 'insertmode' changed, enter or exit Insert mode */
5391 	if (p_im != old_p_im)
5392 	{
5393 	    if (p_im)
5394 		restart_edit = 'i';
5395 	    else
5396 		restart_edit = 0;
5397 	}
5398 
5399 	if (cmd_result == FAIL)
5400 	    /* The Ex command failed, do not execute the operator. */
5401 	    clearop(cap->oap);
5402 	else if (cap->oap->op_type != OP_NOP
5403 		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
5404 		    || cap->oap->start.col >
5405 			       (colnr_T)STRLEN(ml_get(cap->oap->start.lnum))
5406 		    || did_emsg
5407 		    ))
5408 	    /* The start of the operator has become invalid by the Ex command.
5409 	     */
5410 	    clearopbeep(cap->oap);
5411     }
5412 }
5413 
5414 /*
5415  * Handle CTRL-G command.
5416  */
5417     static void
5418 nv_ctrlg(cap)
5419     cmdarg_T *cap;
5420 {
5421     if (VIsual_active)	/* toggle Selection/Visual mode */
5422     {
5423 	VIsual_select = !VIsual_select;
5424 	showmode();
5425     }
5426     else if (!checkclearop(cap->oap))
5427 	/* print full name if count given or :cd used */
5428 	fileinfo((int)cap->count0, FALSE, TRUE);
5429 }
5430 
5431 /*
5432  * Handle CTRL-H <Backspace> command.
5433  */
5434     static void
5435 nv_ctrlh(cap)
5436     cmdarg_T *cap;
5437 {
5438     if (VIsual_active && VIsual_select)
5439     {
5440 	cap->cmdchar = 'x';	/* BS key behaves like 'x' in Select mode */
5441 	v_visop(cap);
5442     }
5443     else
5444 	nv_left(cap);
5445 }
5446 
5447 /*
5448  * CTRL-L: clear screen and redraw.
5449  */
5450     static void
5451 nv_clear(cap)
5452     cmdarg_T	*cap;
5453 {
5454     if (!checkclearop(cap->oap))
5455     {
5456 #if defined(__BEOS__) && !USE_THREAD_FOR_INPUT_WITH_TIMEOUT
5457 	/*
5458 	 * Right now, the BeBox doesn't seem to have an easy way to detect
5459 	 * window resizing, so we cheat and make the user detect it
5460 	 * manually with CTRL-L instead
5461 	 */
5462 	ui_get_shellsize();
5463 #endif
5464 #ifdef FEAT_SYN_HL
5465 	/* Clear all syntax states to force resyncing. */
5466 	syn_stack_free_all(curwin->w_s);
5467 #endif
5468 	redraw_later(CLEAR);
5469     }
5470 }
5471 
5472 /*
5473  * CTRL-O: In Select mode: switch to Visual mode for one command.
5474  * Otherwise: Go to older pcmark.
5475  */
5476     static void
5477 nv_ctrlo(cap)
5478     cmdarg_T	*cap;
5479 {
5480     if (VIsual_active && VIsual_select)
5481     {
5482 	VIsual_select = FALSE;
5483 	showmode();
5484 	restart_VIsual_select = 2;	/* restart Select mode later */
5485     }
5486     else
5487     {
5488 	cap->count1 = -cap->count1;
5489 	nv_pcmark(cap);
5490     }
5491 }
5492 
5493 /*
5494  * CTRL-^ command, short for ":e #"
5495  */
5496     static void
5497 nv_hat(cap)
5498     cmdarg_T	*cap;
5499 {
5500     if (!checkclearopq(cap->oap))
5501 	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
5502 						GETF_SETMARK|GETF_ALT, FALSE);
5503 }
5504 
5505 /*
5506  * "Z" commands.
5507  */
5508     static void
5509 nv_Zet(cap)
5510     cmdarg_T *cap;
5511 {
5512     if (!checkclearopq(cap->oap))
5513     {
5514 	switch (cap->nchar)
5515 	{
5516 			/* "ZZ": equivalent to ":x". */
5517 	    case 'Z':	do_cmdline_cmd((char_u *)"x");
5518 			break;
5519 
5520 			/* "ZQ": equivalent to ":q!" (Elvis compatible). */
5521 	    case 'Q':	do_cmdline_cmd((char_u *)"q!");
5522 			break;
5523 
5524 	    default:	clearopbeep(cap->oap);
5525 	}
5526     }
5527 }
5528 
5529 #if defined(FEAT_WINDOWS) || defined(PROTO)
5530 /*
5531  * Call nv_ident() as if "c1" was used, with "c2" as next character.
5532  */
5533     void
5534 do_nv_ident(c1, c2)
5535     int		c1;
5536     int		c2;
5537 {
5538     oparg_T	oa;
5539     cmdarg_T	ca;
5540 
5541     clear_oparg(&oa);
5542     vim_memset(&ca, 0, sizeof(ca));
5543     ca.oap = &oa;
5544     ca.cmdchar = c1;
5545     ca.nchar = c2;
5546     nv_ident(&ca);
5547 }
5548 #endif
5549 
5550 /*
5551  * Handle the commands that use the word under the cursor.
5552  * [g] CTRL-]	:ta to current identifier
5553  * [g] 'K'	run program for current identifier
5554  * [g] '*'	/ to current identifier or string
5555  * [g] '#'	? to current identifier or string
5556  *  g  ']'	:tselect for current identifier
5557  */
5558     static void
5559 nv_ident(cap)
5560     cmdarg_T	*cap;
5561 {
5562     char_u	*ptr = NULL;
5563     char_u	*buf;
5564     char_u	*newbuf;
5565     char_u	*p;
5566     char_u	*kp;		/* value of 'keywordprg' */
5567     int		kp_help;	/* 'keywordprg' is ":help" */
5568     int		n = 0;		/* init for GCC */
5569     int		cmdchar;
5570     int		g_cmd;		/* "g" command */
5571     int		tag_cmd = FALSE;
5572     char_u	*aux_ptr;
5573     int		isman;
5574     int		isman_s;
5575 
5576     if (cap->cmdchar == 'g')	/* "g*", "g#", "g]" and "gCTRL-]" */
5577     {
5578 	cmdchar = cap->nchar;
5579 	g_cmd = TRUE;
5580     }
5581     else
5582     {
5583 	cmdchar = cap->cmdchar;
5584 	g_cmd = FALSE;
5585     }
5586 
5587     if (cmdchar == POUND)	/* the pound sign, '#' for English keyboards */
5588 	cmdchar = '#';
5589 
5590     /*
5591      * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
5592      */
5593     if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
5594     {
5595 	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
5596 	    return;
5597 	if (checkclearopq(cap->oap))
5598 	    return;
5599     }
5600 
5601     if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
5602 		    (cmdchar == '*' || cmdchar == '#')
5603 				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
5604     {
5605 	clearop(cap->oap);
5606 	return;
5607     }
5608 
5609     /* Allocate buffer to put the command in.  Inserting backslashes can
5610      * double the length of the word.  p_kp / curbuf->b_p_kp could be added
5611      * and some numbers. */
5612     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
5613     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
5614 						 || STRCMP(kp, ":help") == 0);
5615     buf = alloc((unsigned)(n * 2 + 30 + STRLEN(kp)));
5616     if (buf == NULL)
5617 	return;
5618     buf[0] = NUL;
5619 
5620     switch (cmdchar)
5621     {
5622 	case '*':
5623 	case '#':
5624 	    /*
5625 	     * Put cursor at start of word, makes search skip the word
5626 	     * under the cursor.
5627 	     * Call setpcmark() first, so "*``" puts the cursor back where
5628 	     * it was.
5629 	     */
5630 	    setpcmark();
5631 	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());
5632 
5633 	    if (!g_cmd && vim_iswordp(ptr))
5634 		STRCPY(buf, "\\<");
5635 	    no_smartcase = TRUE;	/* don't use 'smartcase' now */
5636 	    break;
5637 
5638 	case 'K':
5639 	    if (kp_help)
5640 		STRCPY(buf, "he! ");
5641 	    else
5642 	    {
5643 		/* An external command will probably use an argument starting
5644 		 * with "-" as an option.  To avoid trouble we skip the "-". */
5645 		while (*ptr == '-' && n > 0)
5646 		{
5647 		    ++ptr;
5648 		    --n;
5649 		}
5650 		if (n == 0)
5651 		{
5652 		    EMSG(_(e_noident));	 /* found dashes only */
5653 		    vim_free(buf);
5654 		    return;
5655 		}
5656 
5657 		/* When a count is given, turn it into a range.  Is this
5658 		 * really what we want? */
5659 		isman = (STRCMP(kp, "man") == 0);
5660 		isman_s = (STRCMP(kp, "man -s") == 0);
5661 		if (cap->count0 != 0 && !(isman || isman_s))
5662 		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);
5663 
5664 		STRCAT(buf, "! ");
5665 		if (cap->count0 == 0 && isman_s)
5666 		    STRCAT(buf, "man");
5667 		else
5668 		    STRCAT(buf, kp);
5669 		STRCAT(buf, " ");
5670 		if (cap->count0 != 0 && (isman || isman_s))
5671 		{
5672 		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
5673 		    STRCAT(buf, " ");
5674 		}
5675 	    }
5676 	    break;
5677 
5678 	case ']':
5679 	    tag_cmd = TRUE;
5680 #ifdef FEAT_CSCOPE
5681 	    if (p_cst)
5682 		STRCPY(buf, "cstag ");
5683 	    else
5684 #endif
5685 		STRCPY(buf, "ts ");
5686 	    break;
5687 
5688 	default:
5689 	    tag_cmd = TRUE;
5690 	    if (curbuf->b_help)
5691 		STRCPY(buf, "he! ");
5692 	    else
5693 	    {
5694 		if (g_cmd)
5695 		    STRCPY(buf, "tj ");
5696 		else
5697 		    sprintf((char *)buf, "%ldta ", cap->count0);
5698 	    }
5699     }
5700 
5701     /*
5702      * Now grab the chars in the identifier
5703      */
5704     if (cmdchar == 'K' && !kp_help)
5705     {
5706 	/* Escape the argument properly for a shell command */
5707 	ptr = vim_strnsave(ptr, n);
5708 	p = vim_strsave_shellescape(ptr, TRUE, TRUE);
5709 	vim_free(ptr);
5710 	if (p == NULL)
5711 	{
5712 	    vim_free(buf);
5713 	    return;
5714 	}
5715 	newbuf = (char_u *)vim_realloc(buf, STRLEN(buf) + STRLEN(p) + 1);
5716 	if (newbuf == NULL)
5717 	{
5718 	    vim_free(buf);
5719 	    vim_free(p);
5720 	    return;
5721 	}
5722 	buf = newbuf;
5723 	STRCAT(buf, p);
5724 	vim_free(p);
5725     }
5726     else
5727     {
5728 	if (cmdchar == '*')
5729 	    aux_ptr = (char_u *)(p_magic ? "/.*~[^$\\" : "/^$\\");
5730 	else if (cmdchar == '#')
5731 	    aux_ptr = (char_u *)(p_magic ? "/?.*~[^$\\" : "/?^$\\");
5732 	else if (tag_cmd)
5733 	{
5734 	    if (curbuf->b_help)
5735 		/* ":help" handles unescaped argument */
5736 		aux_ptr = (char_u *)"";
5737 	    else
5738 		aux_ptr = (char_u *)"\\|\"\n[";
5739 	}
5740 	else
5741 	    aux_ptr = (char_u *)"\\|\"\n*?[";
5742 
5743 	p = buf + STRLEN(buf);
5744 	while (n-- > 0)
5745 	{
5746 	    /* put a backslash before \ and some others */
5747 	    if (vim_strchr(aux_ptr, *ptr) != NULL)
5748 		*p++ = '\\';
5749 #ifdef FEAT_MBYTE
5750 	    /* When current byte is a part of multibyte character, copy all
5751 	     * bytes of that character. */
5752 	    if (has_mbyte)
5753 	    {
5754 		int i;
5755 		int len = (*mb_ptr2len)(ptr) - 1;
5756 
5757 		for (i = 0; i < len && n >= 1; ++i, --n)
5758 		    *p++ = *ptr++;
5759 	    }
5760 #endif
5761 	    *p++ = *ptr++;
5762 	}
5763 	*p = NUL;
5764     }
5765 
5766     /*
5767      * Execute the command.
5768      */
5769     if (cmdchar == '*' || cmdchar == '#')
5770     {
5771 	if (!g_cmd && (
5772 #ifdef FEAT_MBYTE
5773 		has_mbyte ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr)) :
5774 #endif
5775 		vim_iswordc(ptr[-1])))
5776 	    STRCAT(buf, "\\>");
5777 #ifdef FEAT_CMDHIST
5778 	/* put pattern in search history */
5779 	init_history();
5780 	add_to_history(HIST_SEARCH, buf, TRUE, NUL);
5781 #endif
5782 	(void)normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0);
5783     }
5784     else
5785 	do_cmdline_cmd(buf);
5786 
5787     vim_free(buf);
5788 }
5789 
5790 /*
5791  * Get visually selected text, within one line only.
5792  * Returns FAIL if more than one line selected.
5793  */
5794     int
5795 get_visual_text(cap, pp, lenp)
5796     cmdarg_T	*cap;
5797     char_u	**pp;	    /* return: start of selected text */
5798     int		*lenp;	    /* return: length of selected text */
5799 {
5800     if (VIsual_mode != 'V')
5801 	unadjust_for_sel();
5802     if (VIsual.lnum != curwin->w_cursor.lnum)
5803     {
5804 	if (cap != NULL)
5805 	    clearopbeep(cap->oap);
5806 	return FAIL;
5807     }
5808     if (VIsual_mode == 'V')
5809     {
5810 	*pp = ml_get_curline();
5811 	*lenp = (int)STRLEN(*pp);
5812     }
5813     else
5814     {
5815 	if (lt(curwin->w_cursor, VIsual))
5816 	{
5817 	    *pp = ml_get_pos(&curwin->w_cursor);
5818 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
5819 	}
5820 	else
5821 	{
5822 	    *pp = ml_get_pos(&VIsual);
5823 	    *lenp = curwin->w_cursor.col - VIsual.col + 1;
5824 	}
5825 #ifdef FEAT_MBYTE
5826 	if (has_mbyte)
5827 	    /* Correct the length to include the whole last character. */
5828 	    *lenp += (*mb_ptr2len)(*pp + (*lenp - 1)) - 1;
5829 #endif
5830     }
5831     reset_VIsual_and_resel();
5832     return OK;
5833 }
5834 
5835 /*
5836  * CTRL-T: backwards in tag stack
5837  */
5838     static void
5839 nv_tagpop(cap)
5840     cmdarg_T	*cap;
5841 {
5842     if (!checkclearopq(cap->oap))
5843 	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
5844 }
5845 
5846 /*
5847  * Handle scrolling command 'H', 'L' and 'M'.
5848  */
5849     static void
5850 nv_scroll(cap)
5851     cmdarg_T  *cap;
5852 {
5853     int		used = 0;
5854     long	n;
5855 #ifdef FEAT_FOLDING
5856     linenr_T	lnum;
5857 #endif
5858     int		half;
5859 
5860     cap->oap->motion_type = MLINE;
5861     setpcmark();
5862 
5863     if (cap->cmdchar == 'L')
5864     {
5865 	validate_botline();	    /* make sure curwin->w_botline is valid */
5866 	curwin->w_cursor.lnum = curwin->w_botline - 1;
5867 	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
5868 	    curwin->w_cursor.lnum = 1;
5869 	else
5870 	{
5871 #ifdef FEAT_FOLDING
5872 	    if (hasAnyFolding(curwin))
5873 	    {
5874 		/* Count a fold for one screen line. */
5875 		for (n = cap->count1 - 1; n > 0
5876 			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
5877 		{
5878 		    (void)hasFolding(curwin->w_cursor.lnum,
5879 						&curwin->w_cursor.lnum, NULL);
5880 		    --curwin->w_cursor.lnum;
5881 		}
5882 	    }
5883 	    else
5884 #endif
5885 		curwin->w_cursor.lnum -= cap->count1 - 1;
5886 	}
5887     }
5888     else
5889     {
5890 	if (cap->cmdchar == 'M')
5891 	{
5892 #ifdef FEAT_DIFF
5893 	    /* Don't count filler lines above the window. */
5894 	    used -= diff_check_fill(curwin, curwin->w_topline)
5895 							  - curwin->w_topfill;
5896 #endif
5897 	    validate_botline();	    /* make sure w_empty_rows is valid */
5898 	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
5899 	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
5900 	    {
5901 #ifdef FEAT_DIFF
5902 		/* Count half he number of filler lines to be "below this
5903 		 * line" and half to be "above the next line". */
5904 		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
5905 							     + n) / 2 >= half)
5906 		{
5907 		    --n;
5908 		    break;
5909 		}
5910 #endif
5911 		used += plines(curwin->w_topline + n);
5912 		if (used >= half)
5913 		    break;
5914 #ifdef FEAT_FOLDING
5915 		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
5916 		    n = lnum - curwin->w_topline;
5917 #endif
5918 	    }
5919 	    if (n > 0 && used > curwin->w_height)
5920 		--n;
5921 	}
5922 	else /* (cap->cmdchar == 'H') */
5923 	{
5924 	    n = cap->count1 - 1;
5925 #ifdef FEAT_FOLDING
5926 	    if (hasAnyFolding(curwin))
5927 	    {
5928 		/* Count a fold for one screen line. */
5929 		lnum = curwin->w_topline;
5930 		while (n-- > 0 && lnum < curwin->w_botline - 1)
5931 		{
5932 		    hasFolding(lnum, NULL, &lnum);
5933 		    ++lnum;
5934 		}
5935 		n = lnum - curwin->w_topline;
5936 	    }
5937 #endif
5938 	}
5939 	curwin->w_cursor.lnum = curwin->w_topline + n;
5940 	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
5941 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
5942     }
5943 
5944     cursor_correct();	/* correct for 'so' */
5945     beginline(BL_SOL | BL_FIX);
5946 }
5947 
5948 /*
5949  * Cursor right commands.
5950  */
5951     static void
5952 nv_right(cap)
5953     cmdarg_T	*cap;
5954 {
5955     long	n;
5956     int		past_line;
5957 
5958     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5959     {
5960 	/* <C-Right> and <S-Right> move a word or WORD right */
5961 	if (mod_mask & MOD_MASK_CTRL)
5962 	    cap->arg = TRUE;
5963 	nv_wordcmd(cap);
5964 	return;
5965     }
5966 
5967     cap->oap->motion_type = MCHAR;
5968     cap->oap->inclusive = FALSE;
5969     past_line = (VIsual_active && *p_sel != 'o');
5970 
5971 #ifdef FEAT_VIRTUALEDIT
5972     /*
5973      * In virtual edit mode, there's no such thing as "past_line", as lines
5974      * are (theoretically) infinitely long.
5975      */
5976     if (virtual_active())
5977 	past_line = 0;
5978 #endif
5979 
5980     for (n = cap->count1; n > 0; --n)
5981     {
5982 	if ((!past_line && oneright() == FAIL)
5983 		|| (past_line && *ml_get_cursor() == NUL)
5984 		)
5985 	{
5986 	    /*
5987 	     *	  <Space> wraps to next line if 'whichwrap' has 's'.
5988 	     *	      'l' wraps to next line if 'whichwrap' has 'l'.
5989 	     * CURS_RIGHT wraps to next line if 'whichwrap' has '>'.
5990 	     */
5991 	    if (       ((cap->cmdchar == ' '
5992 			    && vim_strchr(p_ww, 's') != NULL)
5993 			|| (cap->cmdchar == 'l'
5994 			    && vim_strchr(p_ww, 'l') != NULL)
5995 			|| (cap->cmdchar == K_RIGHT
5996 			    && vim_strchr(p_ww, '>') != NULL))
5997 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
5998 	    {
5999 		/* When deleting we also count the NL as a character.
6000 		 * Set cap->oap->inclusive when last char in the line is
6001 		 * included, move to next line after that */
6002 		if (	   cap->oap->op_type != OP_NOP
6003 			&& !cap->oap->inclusive
6004 			&& !lineempty(curwin->w_cursor.lnum))
6005 		    cap->oap->inclusive = TRUE;
6006 		else
6007 		{
6008 		    ++curwin->w_cursor.lnum;
6009 		    curwin->w_cursor.col = 0;
6010 #ifdef FEAT_VIRTUALEDIT
6011 		    curwin->w_cursor.coladd = 0;
6012 #endif
6013 		    curwin->w_set_curswant = TRUE;
6014 		    cap->oap->inclusive = FALSE;
6015 		}
6016 		continue;
6017 	    }
6018 	    if (cap->oap->op_type == OP_NOP)
6019 	    {
6020 		/* Only beep and flush if not moved at all */
6021 		if (n == cap->count1)
6022 		    beep_flush();
6023 	    }
6024 	    else
6025 	    {
6026 		if (!lineempty(curwin->w_cursor.lnum))
6027 		    cap->oap->inclusive = TRUE;
6028 	    }
6029 	    break;
6030 	}
6031 	else if (past_line)
6032 	{
6033 	    curwin->w_set_curswant = TRUE;
6034 #ifdef FEAT_VIRTUALEDIT
6035 	    if (virtual_active())
6036 		oneright();
6037 	    else
6038 #endif
6039 	    {
6040 #ifdef FEAT_MBYTE
6041 		if (has_mbyte)
6042 		    curwin->w_cursor.col +=
6043 					 (*mb_ptr2len)(ml_get_cursor());
6044 		else
6045 #endif
6046 		    ++curwin->w_cursor.col;
6047 	    }
6048 	}
6049     }
6050 #ifdef FEAT_FOLDING
6051     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
6052 					       && cap->oap->op_type == OP_NOP)
6053 	foldOpenCursor();
6054 #endif
6055 }
6056 
6057 /*
6058  * Cursor left commands.
6059  *
6060  * Returns TRUE when operator end should not be adjusted.
6061  */
6062     static void
6063 nv_left(cap)
6064     cmdarg_T	*cap;
6065 {
6066     long	n;
6067 
6068     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
6069     {
6070 	/* <C-Left> and <S-Left> move a word or WORD left */
6071 	if (mod_mask & MOD_MASK_CTRL)
6072 	    cap->arg = 1;
6073 	nv_bck_word(cap);
6074 	return;
6075     }
6076 
6077     cap->oap->motion_type = MCHAR;
6078     cap->oap->inclusive = FALSE;
6079     for (n = cap->count1; n > 0; --n)
6080     {
6081 	if (oneleft() == FAIL)
6082 	{
6083 	    /* <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
6084 	     *		 'h' wraps to previous line if 'whichwrap' has 'h'.
6085 	     *	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
6086 	     */
6087 	    if (       (((cap->cmdchar == K_BS
6088 				|| cap->cmdchar == Ctrl_H)
6089 			    && vim_strchr(p_ww, 'b') != NULL)
6090 			|| (cap->cmdchar == 'h'
6091 			    && vim_strchr(p_ww, 'h') != NULL)
6092 			|| (cap->cmdchar == K_LEFT
6093 			    && vim_strchr(p_ww, '<') != NULL))
6094 		    && curwin->w_cursor.lnum > 1)
6095 	    {
6096 		--(curwin->w_cursor.lnum);
6097 		coladvance((colnr_T)MAXCOL);
6098 		curwin->w_set_curswant = TRUE;
6099 
6100 		/* When the NL before the first char has to be deleted we
6101 		 * put the cursor on the NUL after the previous line.
6102 		 * This is a very special case, be careful!
6103 		 * Don't adjust op_end now, otherwise it won't work. */
6104 		if (	   (cap->oap->op_type == OP_DELETE
6105 			    || cap->oap->op_type == OP_CHANGE)
6106 			&& !lineempty(curwin->w_cursor.lnum))
6107 		{
6108 		    char_u *cp = ml_get_cursor();
6109 
6110 		    if (*cp != NUL)
6111 		    {
6112 #ifdef FEAT_MBYTE
6113 			if (has_mbyte)
6114 			    curwin->w_cursor.col += (*mb_ptr2len)(cp);
6115 			else
6116 #endif
6117 			    ++curwin->w_cursor.col;
6118 		    }
6119 		    cap->retval |= CA_NO_ADJ_OP_END;
6120 		}
6121 		continue;
6122 	    }
6123 	    /* Only beep and flush if not moved at all */
6124 	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
6125 		beep_flush();
6126 	    break;
6127 	}
6128     }
6129 #ifdef FEAT_FOLDING
6130     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
6131 					       && cap->oap->op_type == OP_NOP)
6132 	foldOpenCursor();
6133 #endif
6134 }
6135 
6136 /*
6137  * Cursor up commands.
6138  * cap->arg is TRUE for "-": Move cursor to first non-blank.
6139  */
6140     static void
6141 nv_up(cap)
6142     cmdarg_T	*cap;
6143 {
6144     if (mod_mask & MOD_MASK_SHIFT)
6145     {
6146 	/* <S-Up> is page up */
6147 	cap->arg = BACKWARD;
6148 	nv_page(cap);
6149     }
6150     else
6151     {
6152 	cap->oap->motion_type = MLINE;
6153 	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
6154 	    clearopbeep(cap->oap);
6155 	else if (cap->arg)
6156 	    beginline(BL_WHITE | BL_FIX);
6157     }
6158 }
6159 
6160 /*
6161  * Cursor down commands.
6162  * cap->arg is TRUE for CR and "+": Move cursor to first non-blank.
6163  */
6164     static void
6165 nv_down(cap)
6166     cmdarg_T	*cap;
6167 {
6168     if (mod_mask & MOD_MASK_SHIFT)
6169     {
6170 	/* <S-Down> is page down */
6171 	cap->arg = FORWARD;
6172 	nv_page(cap);
6173     }
6174     else
6175 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
6176     /* In a quickfix window a <CR> jumps to the error under the cursor. */
6177     if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
6178 	if (curwin->w_llist_ref == NULL)
6179 	    do_cmdline_cmd((char_u *)".cc");	/* quickfix window */
6180 	else
6181 	    do_cmdline_cmd((char_u *)".ll");	/* location list window */
6182     else
6183 #endif
6184     {
6185 #ifdef FEAT_CMDWIN
6186 	/* In the cmdline window a <CR> executes the command. */
6187 	if (cmdwin_type != 0 && cap->cmdchar == CAR)
6188 	    cmdwin_result = CAR;
6189 	else
6190 #endif
6191 	{
6192 	    cap->oap->motion_type = MLINE;
6193 	    if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
6194 		clearopbeep(cap->oap);
6195 	    else if (cap->arg)
6196 		beginline(BL_WHITE | BL_FIX);
6197 	}
6198     }
6199 }
6200 
6201 #ifdef FEAT_SEARCHPATH
6202 /*
6203  * Grab the file name under the cursor and edit it.
6204  */
6205     static void
6206 nv_gotofile(cap)
6207     cmdarg_T	*cap;
6208 {
6209     char_u	*ptr;
6210     linenr_T	lnum = -1;
6211 
6212     if (text_locked())
6213     {
6214 	clearopbeep(cap->oap);
6215 	text_locked_msg();
6216 	return;
6217     }
6218 #ifdef FEAT_AUTOCMD
6219     if (curbuf_locked())
6220     {
6221 	clearop(cap->oap);
6222 	return;
6223     }
6224 #endif
6225 
6226     ptr = grab_file_name(cap->count1, &lnum);
6227 
6228     if (ptr != NULL)
6229     {
6230 	/* do autowrite if necessary */
6231 	if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !P_HID(curbuf))
6232 	    autowrite(curbuf, FALSE);
6233 	setpcmark();
6234 	(void)do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
6235 				       P_HID(curbuf) ? ECMD_HIDE : 0, curwin);
6236 	if (cap->nchar == 'F' && lnum >= 0)
6237 	{
6238 	    curwin->w_cursor.lnum = lnum;
6239 	    check_cursor_lnum();
6240 	    beginline(BL_SOL | BL_FIX);
6241 	}
6242 	vim_free(ptr);
6243     }
6244     else
6245 	clearop(cap->oap);
6246 }
6247 #endif
6248 
6249 /*
6250  * <End> command: to end of current line or last line.
6251  */
6252     static void
6253 nv_end(cap)
6254     cmdarg_T	*cap;
6255 {
6256     if (cap->arg || (mod_mask & MOD_MASK_CTRL))	/* CTRL-END = goto last line */
6257     {
6258 	cap->arg = TRUE;
6259 	nv_goto(cap);
6260 	cap->count1 = 1;		/* to end of current line */
6261     }
6262     nv_dollar(cap);
6263 }
6264 
6265 /*
6266  * Handle the "$" command.
6267  */
6268     static void
6269 nv_dollar(cap)
6270     cmdarg_T	*cap;
6271 {
6272     cap->oap->motion_type = MCHAR;
6273     cap->oap->inclusive = TRUE;
6274 #ifdef FEAT_VIRTUALEDIT
6275     /* In virtual mode when off the edge of a line and an operator
6276      * is pending (whew!) keep the cursor where it is.
6277      * Otherwise, send it to the end of the line. */
6278     if (!virtual_active() || gchar_cursor() != NUL
6279 					       || cap->oap->op_type == OP_NOP)
6280 #endif
6281 	curwin->w_curswant = MAXCOL;	/* so we stay at the end */
6282     if (cursor_down((long)(cap->count1 - 1),
6283 					 cap->oap->op_type == OP_NOP) == FAIL)
6284 	clearopbeep(cap->oap);
6285 #ifdef FEAT_FOLDING
6286     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6287 	foldOpenCursor();
6288 #endif
6289 }
6290 
6291 /*
6292  * Implementation of '?' and '/' commands.
6293  * If cap->arg is TRUE don't set PC mark.
6294  */
6295     static void
6296 nv_search(cap)
6297     cmdarg_T	    *cap;
6298 {
6299     oparg_T	*oap = cap->oap;
6300 
6301     if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
6302     {
6303 	/* Translate "g??" to "g?g?" */
6304 	cap->cmdchar = 'g';
6305 	cap->nchar = '?';
6306 	nv_operator(cap);
6307 	return;
6308     }
6309 
6310     cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0);
6311 
6312     if (cap->searchbuf == NULL)
6313     {
6314 	clearop(oap);
6315 	return;
6316     }
6317 
6318     (void)normal_search(cap, cap->cmdchar, cap->searchbuf,
6319 						(cap->arg ? 0 : SEARCH_MARK));
6320 }
6321 
6322 /*
6323  * Handle "N" and "n" commands.
6324  * cap->arg is SEARCH_REV for "N", 0 for "n".
6325  */
6326     static void
6327 nv_next(cap)
6328     cmdarg_T	*cap;
6329 {
6330     pos_T old = curwin->w_cursor;
6331     int   i = normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
6332 
6333     if (i == 1 && equalpos(old, curwin->w_cursor))
6334     {
6335 	/* Avoid getting stuck on the current cursor position, which can
6336 	 * happen when an offset is given and the cursor is on the last char
6337 	 * in the buffer: Repeat with count + 1. */
6338 	cap->count1 += 1;
6339 	(void)normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
6340 	cap->count1 -= 1;
6341     }
6342 }
6343 
6344 /*
6345  * Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
6346  * Uses only cap->count1 and cap->oap from "cap".
6347  * Return 0 for failure, 1 for found, 2 for found and line offset added.
6348  */
6349     static int
6350 normal_search(cap, dir, pat, opt)
6351     cmdarg_T	*cap;
6352     int		dir;
6353     char_u	*pat;
6354     int		opt;		/* extra flags for do_search() */
6355 {
6356     int		i;
6357 
6358     cap->oap->motion_type = MCHAR;
6359     cap->oap->inclusive = FALSE;
6360     cap->oap->use_reg_one = TRUE;
6361     curwin->w_set_curswant = TRUE;
6362 
6363     i = do_search(cap->oap, dir, pat, cap->count1,
6364 			   opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG, NULL);
6365     if (i == 0)
6366 	clearop(cap->oap);
6367     else
6368     {
6369 	if (i == 2)
6370 	    cap->oap->motion_type = MLINE;
6371 #ifdef FEAT_VIRTUALEDIT
6372 	curwin->w_cursor.coladd = 0;
6373 #endif
6374 #ifdef FEAT_FOLDING
6375 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6376 	    foldOpenCursor();
6377 #endif
6378     }
6379 
6380     /* "/$" will put the cursor after the end of the line, may need to
6381      * correct that here */
6382     check_cursor();
6383     return i;
6384 }
6385 
6386 /*
6387  * Character search commands.
6388  * cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', TRUE for
6389  * ',' and FALSE for ';'.
6390  * cap->nchar is NUL for ',' and ';' (repeat the search)
6391  */
6392     static void
6393 nv_csearch(cap)
6394     cmdarg_T	*cap;
6395 {
6396     int		t_cmd;
6397 
6398     if (cap->cmdchar == 't' || cap->cmdchar == 'T')
6399 	t_cmd = TRUE;
6400     else
6401 	t_cmd = FALSE;
6402 
6403     cap->oap->motion_type = MCHAR;
6404     if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
6405 	clearopbeep(cap->oap);
6406     else
6407     {
6408 	curwin->w_set_curswant = TRUE;
6409 #ifdef FEAT_VIRTUALEDIT
6410 	/* Include a Tab for "tx" and for "dfx". */
6411 	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
6412 		&& (t_cmd || cap->oap->op_type != OP_NOP))
6413 	{
6414 	    colnr_T	scol, ecol;
6415 
6416 	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
6417 	    curwin->w_cursor.coladd = ecol - scol;
6418 	}
6419 	else
6420 	    curwin->w_cursor.coladd = 0;
6421 #endif
6422 	adjust_for_sel(cap);
6423 #ifdef FEAT_FOLDING
6424 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6425 	    foldOpenCursor();
6426 #endif
6427     }
6428 }
6429 
6430 /*
6431  * "[" and "]" commands.
6432  * cap->arg is BACKWARD for "[" and FORWARD for "]".
6433  */
6434     static void
6435 nv_brackets(cap)
6436     cmdarg_T	*cap;
6437 {
6438     pos_T	new_pos = INIT_POS_T(0, 0, 0);
6439     pos_T	prev_pos;
6440     pos_T	*pos = NULL;	    /* init for GCC */
6441     pos_T	old_pos;	    /* cursor position before command */
6442     int		flag;
6443     long	n;
6444     int		findc;
6445     int		c;
6446 
6447     cap->oap->motion_type = MCHAR;
6448     cap->oap->inclusive = FALSE;
6449     old_pos = curwin->w_cursor;
6450 #ifdef FEAT_VIRTUALEDIT
6451     curwin->w_cursor.coladd = 0;	    /* TODO: don't do this for an error. */
6452 #endif
6453 
6454 #ifdef FEAT_SEARCHPATH
6455     /*
6456      * "[f" or "]f" : Edit file under the cursor (same as "gf")
6457      */
6458     if (cap->nchar == 'f')
6459 	nv_gotofile(cap);
6460     else
6461 #endif
6462 
6463 #ifdef FEAT_FIND_ID
6464     /*
6465      * Find the occurrence(s) of the identifier or define under cursor
6466      * in current and included files or jump to the first occurrence.
6467      *
6468      *			search	     list	    jump
6469      *		      fwd   bwd    fwd	 bwd	 fwd	bwd
6470      * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
6471      * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
6472      */
6473     if (vim_strchr((char_u *)
6474 #ifdef EBCDIC
6475 		"iI\005dD\067",
6476 #else
6477 		"iI\011dD\004",
6478 #endif
6479 		cap->nchar) != NULL)
6480     {
6481 	char_u	*ptr;
6482 	int	len;
6483 
6484 	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
6485 	    clearop(cap->oap);
6486 	else
6487 	{
6488 	    find_pattern_in_path(ptr, 0, len, TRUE,
6489 		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
6490 		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
6491 		cap->count1,
6492 		isupper(cap->nchar) ? ACTION_SHOW_ALL :
6493 			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
6494 		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
6495 		(linenr_T)MAXLNUM);
6496 	    curwin->w_set_curswant = TRUE;
6497 	}
6498     }
6499     else
6500 #endif
6501 
6502     /*
6503      * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
6504      * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
6505      * "[/", "[*", "]/", "]*": go to Nth comment start/end.
6506      * "[m" or "]m" search for prev/next start of (Java) method.
6507      * "[M" or "]M" search for prev/next end of (Java) method.
6508      */
6509     if (  (cap->cmdchar == '['
6510 		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
6511 	    || (cap->cmdchar == ']'
6512 		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
6513     {
6514 	if (cap->nchar == '*')
6515 	    cap->nchar = '/';
6516 	prev_pos.lnum = 0;
6517 	if (cap->nchar == 'm' || cap->nchar == 'M')
6518 	{
6519 	    if (cap->cmdchar == '[')
6520 		findc = '{';
6521 	    else
6522 		findc = '}';
6523 	    n = 9999;
6524 	}
6525 	else
6526 	{
6527 	    findc = cap->nchar;
6528 	    n = cap->count1;
6529 	}
6530 	for ( ; n > 0; --n)
6531 	{
6532 	    if ((pos = findmatchlimit(cap->oap, findc,
6533 		(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
6534 	    {
6535 		if (new_pos.lnum == 0)	/* nothing found */
6536 		{
6537 		    if (cap->nchar != 'm' && cap->nchar != 'M')
6538 			clearopbeep(cap->oap);
6539 		}
6540 		else
6541 		    pos = &new_pos;	/* use last one found */
6542 		break;
6543 	    }
6544 	    prev_pos = new_pos;
6545 	    curwin->w_cursor = *pos;
6546 	    new_pos = *pos;
6547 	}
6548 	curwin->w_cursor = old_pos;
6549 
6550 	/*
6551 	 * Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
6552 	 * brought us to the match for "[m" and "]M" when inside a method.
6553 	 * Try finding the '{' or '}' we want to be at.
6554 	 * Also repeat for the given count.
6555 	 */
6556 	if (cap->nchar == 'm' || cap->nchar == 'M')
6557 	{
6558 	    /* norm is TRUE for "]M" and "[m" */
6559 	    int	    norm = ((findc == '{') == (cap->nchar == 'm'));
6560 
6561 	    n = cap->count1;
6562 	    /* found a match: we were inside a method */
6563 	    if (prev_pos.lnum != 0)
6564 	    {
6565 		pos = &prev_pos;
6566 		curwin->w_cursor = prev_pos;
6567 		if (norm)
6568 		    --n;
6569 	    }
6570 	    else
6571 		pos = NULL;
6572 	    while (n > 0)
6573 	    {
6574 		for (;;)
6575 		{
6576 		    if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
6577 		    {
6578 			/* if not found anything, that's an error */
6579 			if (pos == NULL)
6580 			    clearopbeep(cap->oap);
6581 			n = 0;
6582 			break;
6583 		    }
6584 		    c = gchar_cursor();
6585 		    if (c == '{' || c == '}')
6586 		    {
6587 			/* Must have found end/start of class: use it.
6588 			 * Or found the place to be at. */
6589 			if ((c == findc && norm) || (n == 1 && !norm))
6590 			{
6591 			    new_pos = curwin->w_cursor;
6592 			    pos = &new_pos;
6593 			    n = 0;
6594 			}
6595 			/* if no match found at all, we started outside of the
6596 			 * class and we're inside now.  Just go on. */
6597 			else if (new_pos.lnum == 0)
6598 			{
6599 			    new_pos = curwin->w_cursor;
6600 			    pos = &new_pos;
6601 			}
6602 			/* found start/end of other method: go to match */
6603 			else if ((pos = findmatchlimit(cap->oap, findc,
6604 			    (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
6605 								  0)) == NULL)
6606 			    n = 0;
6607 			else
6608 			    curwin->w_cursor = *pos;
6609 			break;
6610 		    }
6611 		}
6612 		--n;
6613 	    }
6614 	    curwin->w_cursor = old_pos;
6615 	    if (pos == NULL && new_pos.lnum != 0)
6616 		clearopbeep(cap->oap);
6617 	}
6618 	if (pos != NULL)
6619 	{
6620 	    setpcmark();
6621 	    curwin->w_cursor = *pos;
6622 	    curwin->w_set_curswant = TRUE;
6623 #ifdef FEAT_FOLDING
6624 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped
6625 					       && cap->oap->op_type == OP_NOP)
6626 		foldOpenCursor();
6627 #endif
6628 	}
6629     }
6630 
6631     /*
6632      * "[[", "[]", "]]" and "][": move to start or end of function
6633      */
6634     else if (cap->nchar == '[' || cap->nchar == ']')
6635     {
6636 	if (cap->nchar == cap->cmdchar)		    /* "]]" or "[[" */
6637 	    flag = '{';
6638 	else
6639 	    flag = '}';		    /* "][" or "[]" */
6640 
6641 	curwin->w_set_curswant = TRUE;
6642 	/*
6643 	 * Imitate strange Vi behaviour: When using "]]" with an operator
6644 	 * we also stop at '}'.
6645 	 */
6646 	if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
6647 	      (cap->oap->op_type != OP_NOP
6648 				      && cap->arg == FORWARD && flag == '{')))
6649 	    clearopbeep(cap->oap);
6650 	else
6651 	{
6652 	    if (cap->oap->op_type == OP_NOP)
6653 		beginline(BL_WHITE | BL_FIX);
6654 #ifdef FEAT_FOLDING
6655 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6656 		foldOpenCursor();
6657 #endif
6658 	}
6659     }
6660 
6661     /*
6662      * "[p", "[P", "]P" and "]p": put with indent adjustment
6663      */
6664     else if (cap->nchar == 'p' || cap->nchar == 'P')
6665     {
6666 	if (!checkclearop(cap->oap))
6667 	{
6668 	    int	    dir = (cap->cmdchar == ']' && cap->nchar == 'p')
6669 							 ? FORWARD : BACKWARD;
6670 	    int	    regname = cap->oap->regname;
6671 	    int	    was_visual = VIsual_active;
6672 	    int	    line_count = curbuf->b_ml.ml_line_count;
6673 	    pos_T   start, end;
6674 
6675 	    if (VIsual_active)
6676 	    {
6677 		start = ltoreq(VIsual, curwin->w_cursor)
6678 						  ? VIsual : curwin->w_cursor;
6679 		end =  equalpos(start,VIsual) ? curwin->w_cursor : VIsual;
6680 		curwin->w_cursor = (dir == BACKWARD ? start : end);
6681 	    }
6682 # ifdef FEAT_CLIPBOARD
6683 	    adjust_clip_reg(&regname);
6684 # endif
6685 	    prep_redo_cmd(cap);
6686 
6687 	    do_put(regname, dir, cap->count1, PUT_FIXINDENT);
6688 	    if (was_visual)
6689 	    {
6690 		VIsual = start;
6691 		curwin->w_cursor = end;
6692 		if (dir == BACKWARD)
6693 		{
6694 		    /* adjust lines */
6695 		    VIsual.lnum += curbuf->b_ml.ml_line_count - line_count;
6696 		    curwin->w_cursor.lnum +=
6697 				      curbuf->b_ml.ml_line_count - line_count;
6698 		}
6699 
6700 		VIsual_active = TRUE;
6701 		if (VIsual_mode == 'V')
6702 		{
6703 		    /* delete visually selected lines */
6704 		    cap->cmdchar = 'd';
6705 		    cap->nchar = NUL;
6706 		    cap->oap->regname = regname;
6707 		    nv_operator(cap);
6708 		    do_pending_operator(cap, 0, FALSE);
6709 		}
6710 		if (VIsual_active)
6711 		{
6712 		    end_visual_mode();
6713 		    redraw_later(SOME_VALID);
6714 		}
6715 	    }
6716 	}
6717     }
6718 
6719     /*
6720      * "['", "[`", "]'" and "]`": jump to next mark
6721      */
6722     else if (cap->nchar == '\'' || cap->nchar == '`')
6723     {
6724 	pos = &curwin->w_cursor;
6725 	for (n = cap->count1; n > 0; --n)
6726 	{
6727 	    prev_pos = *pos;
6728 	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
6729 							  cap->nchar == '\'');
6730 	    if (pos == NULL)
6731 		break;
6732 	}
6733 	if (pos == NULL)
6734 	    pos = &prev_pos;
6735 	nv_cursormark(cap, cap->nchar == '\'', pos);
6736     }
6737 
6738 #ifdef FEAT_MOUSE
6739     /*
6740      * [ or ] followed by a middle mouse click: put selected text with
6741      * indent adjustment.  Any other button just does as usual.
6742      */
6743     else if (cap->nchar >= K_RIGHTRELEASE && cap->nchar <= K_LEFTMOUSE)
6744     {
6745 	(void)do_mouse(cap->oap, cap->nchar,
6746 		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
6747 		       cap->count1, PUT_FIXINDENT);
6748     }
6749 #endif /* FEAT_MOUSE */
6750 
6751 #ifdef FEAT_FOLDING
6752     /*
6753      * "[z" and "]z": move to start or end of open fold.
6754      */
6755     else if (cap->nchar == 'z')
6756     {
6757 	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6758 							 cap->count1) == FAIL)
6759 	    clearopbeep(cap->oap);
6760     }
6761 #endif
6762 
6763 #ifdef FEAT_DIFF
6764     /*
6765      * "[c" and "]c": move to next or previous diff-change.
6766      */
6767     else if (cap->nchar == 'c')
6768     {
6769 	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
6770 							 cap->count1) == FAIL)
6771 	    clearopbeep(cap->oap);
6772     }
6773 #endif
6774 
6775 #ifdef FEAT_SPELL
6776     /*
6777      * "[s", "[S", "]s" and "]S": move to next spell error.
6778      */
6779     else if (cap->nchar == 's' || cap->nchar == 'S')
6780     {
6781 	setpcmark();
6782 	for (n = 0; n < cap->count1; ++n)
6783 	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6784 			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
6785 	    {
6786 		clearopbeep(cap->oap);
6787 		break;
6788 	    }
6789 # ifdef FEAT_FOLDING
6790 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6791 	    foldOpenCursor();
6792 # endif
6793     }
6794 #endif
6795 
6796     /* Not a valid cap->nchar. */
6797     else
6798 	clearopbeep(cap->oap);
6799 }
6800 
6801 /*
6802  * Handle Normal mode "%" command.
6803  */
6804     static void
6805 nv_percent(cap)
6806     cmdarg_T	*cap;
6807 {
6808     pos_T	*pos;
6809 #if defined(FEAT_FOLDING)
6810     linenr_T	lnum = curwin->w_cursor.lnum;
6811 #endif
6812 
6813     cap->oap->inclusive = TRUE;
6814     if (cap->count0)	    /* {cnt}% : goto {cnt} percentage in file */
6815     {
6816 	if (cap->count0 > 100)
6817 	    clearopbeep(cap->oap);
6818 	else
6819 	{
6820 	    cap->oap->motion_type = MLINE;
6821 	    setpcmark();
6822 	    /* Round up, so CTRL-G will give same value.  Watch out for a
6823 	     * large line count, the line number must not go negative! */
6824 	    if (curbuf->b_ml.ml_line_count > 1000000)
6825 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99L)
6826 							 / 100L * cap->count0;
6827 	    else
6828 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
6829 						    cap->count0 + 99L) / 100L;
6830 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
6831 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6832 	    beginline(BL_SOL | BL_FIX);
6833 	}
6834     }
6835     else		    /* "%" : go to matching paren */
6836     {
6837 	cap->oap->motion_type = MCHAR;
6838 	cap->oap->use_reg_one = TRUE;
6839 	if ((pos = findmatch(cap->oap, NUL)) == NULL)
6840 	    clearopbeep(cap->oap);
6841 	else
6842 	{
6843 	    setpcmark();
6844 	    curwin->w_cursor = *pos;
6845 	    curwin->w_set_curswant = TRUE;
6846 #ifdef FEAT_VIRTUALEDIT
6847 	    curwin->w_cursor.coladd = 0;
6848 #endif
6849 	    adjust_for_sel(cap);
6850 	}
6851     }
6852 #ifdef FEAT_FOLDING
6853     if (cap->oap->op_type == OP_NOP
6854 	    && lnum != curwin->w_cursor.lnum
6855 	    && (fdo_flags & FDO_PERCENT)
6856 	    && KeyTyped)
6857 	foldOpenCursor();
6858 #endif
6859 }
6860 
6861 /*
6862  * Handle "(" and ")" commands.
6863  * cap->arg is BACKWARD for "(" and FORWARD for ")".
6864  */
6865     static void
6866 nv_brace(cap)
6867     cmdarg_T	*cap;
6868 {
6869     cap->oap->motion_type = MCHAR;
6870     cap->oap->use_reg_one = TRUE;
6871     /* The motion used to be inclusive for "(", but that is not what Vi does. */
6872     cap->oap->inclusive = FALSE;
6873     curwin->w_set_curswant = TRUE;
6874 
6875     if (findsent(cap->arg, cap->count1) == FAIL)
6876 	clearopbeep(cap->oap);
6877     else
6878     {
6879 	/* Don't leave the cursor on the NUL past end of line. */
6880 	adjust_cursor(cap->oap);
6881 #ifdef FEAT_VIRTUALEDIT
6882 	curwin->w_cursor.coladd = 0;
6883 #endif
6884 #ifdef FEAT_FOLDING
6885 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6886 	    foldOpenCursor();
6887 #endif
6888     }
6889 }
6890 
6891 /*
6892  * "m" command: Mark a position.
6893  */
6894     static void
6895 nv_mark(cap)
6896     cmdarg_T	*cap;
6897 {
6898     if (!checkclearop(cap->oap))
6899     {
6900 	if (setmark(cap->nchar) == FAIL)
6901 	    clearopbeep(cap->oap);
6902     }
6903 }
6904 
6905 /*
6906  * "{" and "}" commands.
6907  * cmd->arg is BACKWARD for "{" and FORWARD for "}".
6908  */
6909     static void
6910 nv_findpar(cap)
6911     cmdarg_T	*cap;
6912 {
6913     cap->oap->motion_type = MCHAR;
6914     cap->oap->inclusive = FALSE;
6915     cap->oap->use_reg_one = TRUE;
6916     curwin->w_set_curswant = TRUE;
6917     if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, FALSE))
6918 	clearopbeep(cap->oap);
6919     else
6920     {
6921 #ifdef FEAT_VIRTUALEDIT
6922 	curwin->w_cursor.coladd = 0;
6923 #endif
6924 #ifdef FEAT_FOLDING
6925 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6926 	    foldOpenCursor();
6927 #endif
6928     }
6929 }
6930 
6931 /*
6932  * "u" command: Undo or make lower case.
6933  */
6934     static void
6935 nv_undo(cap)
6936     cmdarg_T	*cap;
6937 {
6938     if (cap->oap->op_type == OP_LOWER || VIsual_active)
6939     {
6940 	/* translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu" */
6941 	cap->cmdchar = 'g';
6942 	cap->nchar = 'u';
6943 	nv_operator(cap);
6944     }
6945     else
6946 	nv_kundo(cap);
6947 }
6948 
6949 /*
6950  * <Undo> command.
6951  */
6952     static void
6953 nv_kundo(cap)
6954     cmdarg_T	*cap;
6955 {
6956     if (!checkclearopq(cap->oap))
6957     {
6958 	u_undo((int)cap->count1);
6959 	curwin->w_set_curswant = TRUE;
6960     }
6961 }
6962 
6963 /*
6964  * Handle the "r" command.
6965  */
6966     static void
6967 nv_replace(cap)
6968     cmdarg_T	*cap;
6969 {
6970     char_u	*ptr;
6971     int		had_ctrl_v;
6972     long	n;
6973 
6974     if (checkclearop(cap->oap))
6975 	return;
6976 
6977     /* get another character */
6978     if (cap->nchar == Ctrl_V)
6979     {
6980 	had_ctrl_v = Ctrl_V;
6981 	cap->nchar = get_literal();
6982 	/* Don't redo a multibyte character with CTRL-V. */
6983 	if (cap->nchar > DEL)
6984 	    had_ctrl_v = NUL;
6985     }
6986     else
6987 	had_ctrl_v = NUL;
6988 
6989     /* Abort if the character is a special key. */
6990     if (IS_SPECIAL(cap->nchar))
6991     {
6992 	clearopbeep(cap->oap);
6993 	return;
6994     }
6995 
6996     /* Visual mode "r" */
6997     if (VIsual_active)
6998     {
6999 	if (got_int)
7000 	    reset_VIsual();
7001 	if (had_ctrl_v)
7002 	{
7003 	    if (cap->nchar == '\r')
7004 		cap->nchar = -1;
7005 	    else if (cap->nchar == '\n')
7006 		cap->nchar = -2;
7007 	}
7008 	nv_operator(cap);
7009 	return;
7010     }
7011 
7012 #ifdef FEAT_VIRTUALEDIT
7013     /* Break tabs, etc. */
7014     if (virtual_active())
7015     {
7016 	if (u_save_cursor() == FAIL)
7017 	    return;
7018 	if (gchar_cursor() == NUL)
7019 	{
7020 	    /* Add extra space and put the cursor on the first one. */
7021 	    coladvance_force((colnr_T)(getviscol() + cap->count1));
7022 	    curwin->w_cursor.col -= cap->count1;
7023 	}
7024 	else if (gchar_cursor() == TAB)
7025 	    coladvance_force(getviscol());
7026     }
7027 #endif
7028 
7029     /* Abort if not enough characters to replace. */
7030     ptr = ml_get_cursor();
7031     if (STRLEN(ptr) < (unsigned)cap->count1
7032 #ifdef FEAT_MBYTE
7033 	    || (has_mbyte && mb_charlen(ptr) < cap->count1)
7034 #endif
7035 	    )
7036     {
7037 	clearopbeep(cap->oap);
7038 	return;
7039     }
7040 
7041     /*
7042      * Replacing with a TAB is done by edit() when it is complicated because
7043      * 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
7044      * Other characters are done below to avoid problems with things like
7045      * CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
7046      */
7047     if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
7048     {
7049 	stuffnumReadbuff(cap->count1);
7050 	stuffcharReadbuff('R');
7051 	stuffcharReadbuff('\t');
7052 	stuffcharReadbuff(ESC);
7053 	return;
7054     }
7055 
7056     /* save line for undo */
7057     if (u_save_cursor() == FAIL)
7058 	return;
7059 
7060     if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
7061     {
7062 	/*
7063 	 * Replace character(s) by a single newline.
7064 	 * Strange vi behaviour: Only one newline is inserted.
7065 	 * Delete the characters here.
7066 	 * Insert the newline with an insert command, takes care of
7067 	 * autoindent.	The insert command depends on being on the last
7068 	 * character of a line or not.
7069 	 */
7070 #ifdef FEAT_MBYTE
7071 	(void)del_chars(cap->count1, FALSE);	/* delete the characters */
7072 #else
7073 	(void)del_bytes(cap->count1, FALSE, FALSE); /* delete the characters */
7074 #endif
7075 	stuffcharReadbuff('\r');
7076 	stuffcharReadbuff(ESC);
7077 
7078 	/* Give 'r' to edit(), to get the redo command right. */
7079 	invoke_edit(cap, TRUE, 'r', FALSE);
7080     }
7081     else
7082     {
7083 	prep_redo(cap->oap->regname, cap->count1,
7084 				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);
7085 
7086 	curbuf->b_op_start = curwin->w_cursor;
7087 #ifdef FEAT_MBYTE
7088 	if (has_mbyte)
7089 	{
7090 	    int		old_State = State;
7091 
7092 	    if (cap->ncharC1 != 0)
7093 		AppendCharToRedobuff(cap->ncharC1);
7094 	    if (cap->ncharC2 != 0)
7095 		AppendCharToRedobuff(cap->ncharC2);
7096 
7097 	    /* This is slow, but it handles replacing a single-byte with a
7098 	     * multi-byte and the other way around.  Also handles adding
7099 	     * composing characters for utf-8. */
7100 	    for (n = cap->count1; n > 0; --n)
7101 	    {
7102 		State = REPLACE;
7103 		if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y)
7104 		{
7105 		    int c = ins_copychar(curwin->w_cursor.lnum
7106 					   + (cap->nchar == Ctrl_Y ? -1 : 1));
7107 		    if (c != NUL)
7108 			ins_char(c);
7109 		    else
7110 			/* will be decremented further down */
7111 			++curwin->w_cursor.col;
7112 		}
7113 		else
7114 		    ins_char(cap->nchar);
7115 		State = old_State;
7116 		if (cap->ncharC1 != 0)
7117 		    ins_char(cap->ncharC1);
7118 		if (cap->ncharC2 != 0)
7119 		    ins_char(cap->ncharC2);
7120 	    }
7121 	}
7122 	else
7123 #endif
7124 	{
7125 	    /*
7126 	     * Replace the characters within one line.
7127 	     */
7128 	    for (n = cap->count1; n > 0; --n)
7129 	    {
7130 		/*
7131 		 * Get ptr again, because u_save and/or showmatch() will have
7132 		 * released the line.  At the same time we let know that the
7133 		 * line will be changed.
7134 		 */
7135 		ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
7136 		if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y)
7137 		{
7138 		  int c = ins_copychar(curwin->w_cursor.lnum
7139 					   + (cap->nchar == Ctrl_Y ? -1 : 1));
7140 		  if (c != NUL)
7141 		    ptr[curwin->w_cursor.col] = c;
7142 		}
7143 		else
7144 		    ptr[curwin->w_cursor.col] = cap->nchar;
7145 		if (p_sm && msg_silent == 0)
7146 		    showmatch(cap->nchar);
7147 		++curwin->w_cursor.col;
7148 	    }
7149 #ifdef FEAT_NETBEANS_INTG
7150 	    if (netbeans_active())
7151 	    {
7152 		colnr_T  start = (colnr_T)(curwin->w_cursor.col - cap->count1);
7153 
7154 		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
7155 							   (long)cap->count1);
7156 		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
7157 					       &ptr[start], (int)cap->count1);
7158 	    }
7159 #endif
7160 
7161 	    /* mark the buffer as changed and prepare for displaying */
7162 	    changed_bytes(curwin->w_cursor.lnum,
7163 			       (colnr_T)(curwin->w_cursor.col - cap->count1));
7164 	}
7165 	--curwin->w_cursor.col;	    /* cursor on the last replaced char */
7166 #ifdef FEAT_MBYTE
7167 	/* if the character on the left of the current cursor is a multi-byte
7168 	 * character, move two characters left */
7169 	if (has_mbyte)
7170 	    mb_adjust_cursor();
7171 #endif
7172 	curbuf->b_op_end = curwin->w_cursor;
7173 	curwin->w_set_curswant = TRUE;
7174 	set_last_insert(cap->nchar);
7175     }
7176 }
7177 
7178 /*
7179  * 'o': Exchange start and end of Visual area.
7180  * 'O': same, but in block mode exchange left and right corners.
7181  */
7182     static void
7183 v_swap_corners(cmdchar)
7184     int		cmdchar;
7185 {
7186     pos_T	old_cursor;
7187     colnr_T	left, right;
7188 
7189     if (cmdchar == 'O' && VIsual_mode == Ctrl_V)
7190     {
7191 	old_cursor = curwin->w_cursor;
7192 	getvcols(curwin, &old_cursor, &VIsual, &left, &right);
7193 	curwin->w_cursor.lnum = VIsual.lnum;
7194 	coladvance(left);
7195 	VIsual = curwin->w_cursor;
7196 
7197 	curwin->w_cursor.lnum = old_cursor.lnum;
7198 	curwin->w_curswant = right;
7199 	/* 'selection "exclusive" and cursor at right-bottom corner: move it
7200 	 * right one column */
7201 	if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e')
7202 	    ++curwin->w_curswant;
7203 	coladvance(curwin->w_curswant);
7204 	if (curwin->w_cursor.col == old_cursor.col
7205 #ifdef FEAT_VIRTUALEDIT
7206 		&& (!virtual_active()
7207 		    || curwin->w_cursor.coladd == old_cursor.coladd)
7208 #endif
7209 		)
7210 	{
7211 	    curwin->w_cursor.lnum = VIsual.lnum;
7212 	    if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e')
7213 		++right;
7214 	    coladvance(right);
7215 	    VIsual = curwin->w_cursor;
7216 
7217 	    curwin->w_cursor.lnum = old_cursor.lnum;
7218 	    coladvance(left);
7219 	    curwin->w_curswant = left;
7220 	}
7221     }
7222     else
7223     {
7224 	old_cursor = curwin->w_cursor;
7225 	curwin->w_cursor = VIsual;
7226 	VIsual = old_cursor;
7227 	curwin->w_set_curswant = TRUE;
7228     }
7229 }
7230 
7231 /*
7232  * "R" (cap->arg is FALSE) and "gR" (cap->arg is TRUE).
7233  */
7234     static void
7235 nv_Replace(cap)
7236     cmdarg_T	    *cap;
7237 {
7238     if (VIsual_active)		/* "R" is replace lines */
7239     {
7240 	cap->cmdchar = 'c';
7241 	cap->nchar = NUL;
7242 	VIsual_mode_orig = VIsual_mode; /* remember original area for gv */
7243 	VIsual_mode = 'V';
7244 	nv_operator(cap);
7245     }
7246     else if (!checkclearopq(cap->oap))
7247     {
7248 	if (!curbuf->b_p_ma)
7249 	    EMSG(_(e_modifiable));
7250 	else
7251 	{
7252 #ifdef FEAT_VIRTUALEDIT
7253 	    if (virtual_active())
7254 		coladvance(getviscol());
7255 #endif
7256 	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
7257 	}
7258     }
7259 }
7260 
7261 #ifdef FEAT_VREPLACE
7262 /*
7263  * "gr".
7264  */
7265     static void
7266 nv_vreplace(cap)
7267     cmdarg_T	*cap;
7268 {
7269     if (VIsual_active)
7270     {
7271 	cap->cmdchar = 'r';
7272 	cap->nchar = cap->extra_char;
7273 	nv_replace(cap);	/* Do same as "r" in Visual mode for now */
7274     }
7275     else if (!checkclearopq(cap->oap))
7276     {
7277 	if (!curbuf->b_p_ma)
7278 	    EMSG(_(e_modifiable));
7279 	else
7280 	{
7281 	    if (cap->extra_char == Ctrl_V)	/* get another character */
7282 		cap->extra_char = get_literal();
7283 	    stuffcharReadbuff(cap->extra_char);
7284 	    stuffcharReadbuff(ESC);
7285 # ifdef FEAT_VIRTUALEDIT
7286 	    if (virtual_active())
7287 		coladvance(getviscol());
7288 # endif
7289 	    invoke_edit(cap, TRUE, 'v', FALSE);
7290 	}
7291     }
7292 }
7293 #endif
7294 
7295 /*
7296  * Swap case for "~" command, when it does not work like an operator.
7297  */
7298     static void
7299 n_swapchar(cap)
7300     cmdarg_T	*cap;
7301 {
7302     long	n;
7303     pos_T	startpos;
7304     int		did_change = 0;
7305 #ifdef FEAT_NETBEANS_INTG
7306     pos_T	pos;
7307     char_u	*ptr;
7308     int		count;
7309 #endif
7310 
7311     if (checkclearopq(cap->oap))
7312 	return;
7313 
7314     if (lineempty(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
7315     {
7316 	clearopbeep(cap->oap);
7317 	return;
7318     }
7319 
7320     prep_redo_cmd(cap);
7321 
7322     if (u_save_cursor() == FAIL)
7323 	return;
7324 
7325     startpos = curwin->w_cursor;
7326 #ifdef FEAT_NETBEANS_INTG
7327     pos = startpos;
7328 #endif
7329     for (n = cap->count1; n > 0; --n)
7330     {
7331 	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
7332 	inc_cursor();
7333 	if (gchar_cursor() == NUL)
7334 	{
7335 	    if (vim_strchr(p_ww, '~') != NULL
7336 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
7337 	    {
7338 #ifdef FEAT_NETBEANS_INTG
7339 		if (netbeans_active())
7340 		{
7341 		    if (did_change)
7342 		    {
7343 			ptr = ml_get(pos.lnum);
7344 			count = (int)STRLEN(ptr) - pos.col;
7345 			netbeans_removed(curbuf, pos.lnum, pos.col,
7346 								 (long)count);
7347 			netbeans_inserted(curbuf, pos.lnum, pos.col,
7348 							&ptr[pos.col], count);
7349 		    }
7350 		    pos.col = 0;
7351 		    pos.lnum++;
7352 		}
7353 #endif
7354 		++curwin->w_cursor.lnum;
7355 		curwin->w_cursor.col = 0;
7356 		if (n > 1)
7357 		{
7358 		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
7359 			break;
7360 		    u_clearline();
7361 		}
7362 	    }
7363 	    else
7364 		break;
7365 	}
7366     }
7367 #ifdef FEAT_NETBEANS_INTG
7368     if (did_change && netbeans_active())
7369     {
7370 	ptr = ml_get(pos.lnum);
7371 	count = curwin->w_cursor.col - pos.col;
7372 	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
7373 	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
7374     }
7375 #endif
7376 
7377 
7378     check_cursor();
7379     curwin->w_set_curswant = TRUE;
7380     if (did_change)
7381     {
7382 	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
7383 									  0L);
7384 	curbuf->b_op_start = startpos;
7385 	curbuf->b_op_end = curwin->w_cursor;
7386 	if (curbuf->b_op_end.col > 0)
7387 	    --curbuf->b_op_end.col;
7388     }
7389 }
7390 
7391 /*
7392  * Move cursor to mark.
7393  */
7394     static void
7395 nv_cursormark(cap, flag, pos)
7396     cmdarg_T	*cap;
7397     int		flag;
7398     pos_T	*pos;
7399 {
7400     if (check_mark(pos) == FAIL)
7401 	clearop(cap->oap);
7402     else
7403     {
7404 	if (cap->cmdchar == '\''
7405 		|| cap->cmdchar == '`'
7406 		|| cap->cmdchar == '['
7407 		|| cap->cmdchar == ']')
7408 	    setpcmark();
7409 	curwin->w_cursor = *pos;
7410 	if (flag)
7411 	    beginline(BL_WHITE | BL_FIX);
7412 	else
7413 	    check_cursor();
7414     }
7415     cap->oap->motion_type = flag ? MLINE : MCHAR;
7416     if (cap->cmdchar == '`')
7417 	cap->oap->use_reg_one = TRUE;
7418     cap->oap->inclusive = FALSE;		/* ignored if not MCHAR */
7419     curwin->w_set_curswant = TRUE;
7420 }
7421 
7422 /*
7423  * Handle commands that are operators in Visual mode.
7424  */
7425     static void
7426 v_visop(cap)
7427     cmdarg_T	*cap;
7428 {
7429     static char_u trans[] = "YyDdCcxdXdAAIIrr";
7430 
7431     /* Uppercase means linewise, except in block mode, then "D" deletes till
7432      * the end of the line, and "C" replaces till EOL */
7433     if (isupper(cap->cmdchar))
7434     {
7435 	if (VIsual_mode != Ctrl_V)
7436 	{
7437 	    VIsual_mode_orig = VIsual_mode;
7438 	    VIsual_mode = 'V';
7439 	}
7440 	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
7441 	    curwin->w_curswant = MAXCOL;
7442     }
7443     cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
7444     nv_operator(cap);
7445 }
7446 
7447 /*
7448  * "s" and "S" commands.
7449  */
7450     static void
7451 nv_subst(cap)
7452     cmdarg_T	*cap;
7453 {
7454     if (VIsual_active)	/* "vs" and "vS" are the same as "vc" */
7455     {
7456 	if (cap->cmdchar == 'S')
7457 	{
7458 	    VIsual_mode_orig = VIsual_mode;
7459 	    VIsual_mode = 'V';
7460 	}
7461 	cap->cmdchar = 'c';
7462 	nv_operator(cap);
7463     }
7464     else
7465 	nv_optrans(cap);
7466 }
7467 
7468 /*
7469  * Abbreviated commands.
7470  */
7471     static void
7472 nv_abbrev(cap)
7473     cmdarg_T	*cap;
7474 {
7475     if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
7476 	cap->cmdchar = 'x';		/* DEL key behaves like 'x' */
7477 
7478     /* in Visual mode these commands are operators */
7479     if (VIsual_active)
7480 	v_visop(cap);
7481     else
7482 	nv_optrans(cap);
7483 }
7484 
7485 /*
7486  * Translate a command into another command.
7487  */
7488     static void
7489 nv_optrans(cap)
7490     cmdarg_T	*cap;
7491 {
7492     static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
7493 			      (char_u *)"d$", (char_u *)"c$",
7494 			      (char_u *)"cl", (char_u *)"cc",
7495 			      (char_u *)"yy", (char_u *)":s\r"};
7496     static char_u *str = (char_u *)"xXDCsSY&";
7497 
7498     if (!checkclearopq(cap->oap))
7499     {
7500 	/* In Vi "2D" doesn't delete the next line.  Can't translate it
7501 	 * either, because "2." should also not use the count. */
7502 	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
7503 	{
7504 	    cap->oap->start = curwin->w_cursor;
7505 	    cap->oap->op_type = OP_DELETE;
7506 #ifdef FEAT_EVAL
7507 	    set_op_var(OP_DELETE);
7508 #endif
7509 	    cap->count1 = 1;
7510 	    nv_dollar(cap);
7511 	    finish_op = TRUE;
7512 	    ResetRedobuff();
7513 	    AppendCharToRedobuff('D');
7514 	}
7515 	else
7516 	{
7517 	    if (cap->count0)
7518 		stuffnumReadbuff(cap->count0);
7519 	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
7520 	}
7521     }
7522     cap->opcount = 0;
7523 }
7524 
7525 /*
7526  * "'" and "`" commands.  Also for "g'" and "g`".
7527  * cap->arg is TRUE for "'" and "g'".
7528  */
7529     static void
7530 nv_gomark(cap)
7531     cmdarg_T	*cap;
7532 {
7533     pos_T	*pos;
7534     int		c;
7535 #ifdef FEAT_FOLDING
7536     pos_T	old_cursor = curwin->w_cursor;
7537     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7538 #endif
7539 
7540     if (cap->cmdchar == 'g')
7541 	c = cap->extra_char;
7542     else
7543 	c = cap->nchar;
7544     pos = getmark(c, (cap->oap->op_type == OP_NOP));
7545     if (pos == (pos_T *)-1)	    /* jumped to other file */
7546     {
7547 	if (cap->arg)
7548 	{
7549 	    check_cursor_lnum();
7550 	    beginline(BL_WHITE | BL_FIX);
7551 	}
7552 	else
7553 	    check_cursor();
7554     }
7555     else
7556 	nv_cursormark(cap, cap->arg, pos);
7557 
7558 #ifdef FEAT_VIRTUALEDIT
7559     /* May need to clear the coladd that a mark includes. */
7560     if (!virtual_active())
7561 	curwin->w_cursor.coladd = 0;
7562 #endif
7563 #ifdef FEAT_FOLDING
7564     if (cap->oap->op_type == OP_NOP
7565 	    && pos != NULL
7566 	    && (pos == (pos_T *)-1 || !equalpos(old_cursor, *pos))
7567 	    && (fdo_flags & FDO_MARK)
7568 	    && old_KeyTyped)
7569 	foldOpenCursor();
7570 #endif
7571 }
7572 
7573 /*
7574  * Handle CTRL-O, CTRL-I, "g;" and "g," commands.
7575  */
7576     static void
7577 nv_pcmark(cap)
7578     cmdarg_T	*cap;
7579 {
7580 #ifdef FEAT_JUMPLIST
7581     pos_T	*pos;
7582 # ifdef FEAT_FOLDING
7583     linenr_T	lnum = curwin->w_cursor.lnum;
7584     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7585 # endif
7586 
7587     if (!checkclearopq(cap->oap))
7588     {
7589 	if (cap->cmdchar == 'g')
7590 	    pos = movechangelist((int)cap->count1);
7591 	else
7592 	    pos = movemark((int)cap->count1);
7593 	if (pos == (pos_T *)-1)		/* jump to other file */
7594 	{
7595 	    curwin->w_set_curswant = TRUE;
7596 	    check_cursor();
7597 	}
7598 	else if (pos != NULL)		    /* can jump */
7599 	    nv_cursormark(cap, FALSE, pos);
7600 	else if (cap->cmdchar == 'g')
7601 	{
7602 	    if (curbuf->b_changelistlen == 0)
7603 		EMSG(_("E664: changelist is empty"));
7604 	    else if (cap->count1 < 0)
7605 		EMSG(_("E662: At start of changelist"));
7606 	    else
7607 		EMSG(_("E663: At end of changelist"));
7608 	}
7609 	else
7610 	    clearopbeep(cap->oap);
7611 # ifdef FEAT_FOLDING
7612 	if (cap->oap->op_type == OP_NOP
7613 		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
7614 		&& (fdo_flags & FDO_MARK)
7615 		&& old_KeyTyped)
7616 	    foldOpenCursor();
7617 # endif
7618     }
7619 #else
7620     clearopbeep(cap->oap);
7621 #endif
7622 }
7623 
7624 /*
7625  * Handle '"' command.
7626  */
7627     static void
7628 nv_regname(cap)
7629     cmdarg_T	*cap;
7630 {
7631     if (checkclearop(cap->oap))
7632 	return;
7633 #ifdef FEAT_EVAL
7634     if (cap->nchar == '=')
7635 	cap->nchar = get_expr_register();
7636 #endif
7637     if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
7638     {
7639 	cap->oap->regname = cap->nchar;
7640 	cap->opcount = cap->count0;	/* remember count before '"' */
7641 #ifdef FEAT_EVAL
7642 	set_reg_var(cap->oap->regname);
7643 #endif
7644     }
7645     else
7646 	clearopbeep(cap->oap);
7647 }
7648 
7649 /*
7650  * Handle "v", "V" and "CTRL-V" commands.
7651  * Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
7652  * is TRUE.
7653  * Handle CTRL-Q just like CTRL-V.
7654  */
7655     static void
7656 nv_visual(cap)
7657     cmdarg_T	*cap;
7658 {
7659     if (cap->cmdchar == Ctrl_Q)
7660 	cap->cmdchar = Ctrl_V;
7661 
7662     /* 'v', 'V' and CTRL-V can be used while an operator is pending to make it
7663      * characterwise, linewise, or blockwise. */
7664     if (cap->oap->op_type != OP_NOP)
7665     {
7666 	cap->oap->motion_force = cap->cmdchar;
7667 	finish_op = FALSE;	/* operator doesn't finish now but later */
7668 	return;
7669     }
7670 
7671     VIsual_select = cap->arg;
7672     if (VIsual_active)	    /* change Visual mode */
7673     {
7674 	if (VIsual_mode == cap->cmdchar)    /* stop visual mode */
7675 	    end_visual_mode();
7676 	else				    /* toggle char/block mode */
7677 	{				    /*	   or char/line mode */
7678 	    VIsual_mode = cap->cmdchar;
7679 	    showmode();
7680 	}
7681 	redraw_curbuf_later(INVERTED);	    /* update the inversion */
7682     }
7683     else		    /* start Visual mode */
7684     {
7685 	check_visual_highlight();
7686 	if (cap->count0 > 0 && resel_VIsual_mode != NUL)
7687 	{
7688 	    /* use previously selected part */
7689 	    VIsual = curwin->w_cursor;
7690 
7691 	    VIsual_active = TRUE;
7692 	    VIsual_reselect = TRUE;
7693 	    if (!cap->arg)
7694 		/* start Select mode when 'selectmode' contains "cmd" */
7695 		may_start_select('c');
7696 #ifdef FEAT_MOUSE
7697 	    setmouse();
7698 #endif
7699 	    if (p_smd && msg_silent == 0)
7700 		redraw_cmdline = TRUE;	    /* show visual mode later */
7701 	    /*
7702 	     * For V and ^V, we multiply the number of lines even if there
7703 	     * was only one -- webb
7704 	     */
7705 	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
7706 	    {
7707 		curwin->w_cursor.lnum +=
7708 				    resel_VIsual_line_count * cap->count0 - 1;
7709 		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
7710 		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
7711 	    }
7712 	    VIsual_mode = resel_VIsual_mode;
7713 	    if (VIsual_mode == 'v')
7714 	    {
7715 		if (resel_VIsual_line_count <= 1)
7716 		{
7717 		    validate_virtcol();
7718 		    curwin->w_curswant = curwin->w_virtcol
7719 					+ resel_VIsual_vcol * cap->count0 - 1;
7720 		}
7721 		else
7722 		    curwin->w_curswant = resel_VIsual_vcol;
7723 		coladvance(curwin->w_curswant);
7724 	    }
7725 	    if (resel_VIsual_vcol == MAXCOL)
7726 	    {
7727 		curwin->w_curswant = MAXCOL;
7728 		coladvance((colnr_T)MAXCOL);
7729 	    }
7730 	    else if (VIsual_mode == Ctrl_V)
7731 	    {
7732 		validate_virtcol();
7733 		curwin->w_curswant = curwin->w_virtcol
7734 					+ resel_VIsual_vcol * cap->count0 - 1;
7735 		coladvance(curwin->w_curswant);
7736 	    }
7737 	    else
7738 		curwin->w_set_curswant = TRUE;
7739 	    redraw_curbuf_later(INVERTED);	/* show the inversion */
7740 	}
7741 	else
7742 	{
7743 	    if (!cap->arg)
7744 		/* start Select mode when 'selectmode' contains "cmd" */
7745 		may_start_select('c');
7746 	    n_start_visual_mode(cap->cmdchar);
7747 	    if (VIsual_mode != 'V' && *p_sel == 'e')
7748 		++cap->count1;  /* include one more char */
7749 	    if (cap->count0 > 0 && --cap->count1 > 0)
7750 	    {
7751 		/* With a count select that many characters or lines. */
7752 		if (VIsual_mode == 'v' || VIsual_mode == Ctrl_V)
7753 		    nv_right(cap);
7754 		else if (VIsual_mode == 'V')
7755 		    nv_down(cap);
7756 	    }
7757 	}
7758     }
7759 }
7760 
7761 /*
7762  * Start selection for Shift-movement keys.
7763  */
7764     void
7765 start_selection()
7766 {
7767     /* if 'selectmode' contains "key", start Select mode */
7768     may_start_select('k');
7769     n_start_visual_mode('v');
7770 }
7771 
7772 /*
7773  * Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
7774  */
7775     void
7776 may_start_select(c)
7777     int		c;
7778 {
7779     VIsual_select = (stuff_empty() && typebuf_typed()
7780 		    && (vim_strchr(p_slm, c) != NULL));
7781 }
7782 
7783 /*
7784  * Start Visual mode "c".
7785  * Should set VIsual_select before calling this.
7786  */
7787     static void
7788 n_start_visual_mode(c)
7789     int		c;
7790 {
7791 #ifdef FEAT_CONCEAL
7792     /* Check for redraw before changing the state. */
7793     conceal_check_cursur_line();
7794 #endif
7795 
7796     VIsual_mode = c;
7797     VIsual_active = TRUE;
7798     VIsual_reselect = TRUE;
7799 #ifdef FEAT_VIRTUALEDIT
7800     /* Corner case: the 0 position in a tab may change when going into
7801      * virtualedit.  Recalculate curwin->w_cursor to avoid bad hilighting.
7802      */
7803     if (c == Ctrl_V && (ve_flags & VE_BLOCK) && gchar_cursor() == TAB)
7804     {
7805 	validate_virtcol();
7806 	coladvance(curwin->w_virtcol);
7807     }
7808 #endif
7809     VIsual = curwin->w_cursor;
7810 
7811 #ifdef FEAT_FOLDING
7812     foldAdjustVisual();
7813 #endif
7814 
7815 #ifdef FEAT_MOUSE
7816     setmouse();
7817 #endif
7818 #ifdef FEAT_CONCEAL
7819     /* Check for redraw after changing the state. */
7820     conceal_check_cursur_line();
7821 #endif
7822 
7823     if (p_smd && msg_silent == 0)
7824 	redraw_cmdline = TRUE;	/* show visual mode later */
7825 #ifdef FEAT_CLIPBOARD
7826     /* Make sure the clipboard gets updated.  Needed because start and
7827      * end may still be the same, and the selection needs to be owned */
7828     clip_star.vmode = NUL;
7829 #endif
7830 
7831     /* Only need to redraw this line, unless still need to redraw an old
7832      * Visual area (when 'lazyredraw' is set). */
7833     if (curwin->w_redr_type < INVERTED)
7834     {
7835 	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
7836 	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
7837     }
7838 }
7839 
7840 
7841 /*
7842  * CTRL-W: Window commands
7843  */
7844     static void
7845 nv_window(cap)
7846     cmdarg_T	*cap;
7847 {
7848 #ifdef FEAT_WINDOWS
7849     if (!checkclearop(cap->oap))
7850 	do_window(cap->nchar, cap->count0, NUL); /* everything is in window.c */
7851 #else
7852     (void)checkclearop(cap->oap);
7853 #endif
7854 }
7855 
7856 /*
7857  * CTRL-Z: Suspend
7858  */
7859     static void
7860 nv_suspend(cap)
7861     cmdarg_T	*cap;
7862 {
7863     clearop(cap->oap);
7864     if (VIsual_active)
7865 	end_visual_mode();		/* stop Visual mode */
7866     do_cmdline_cmd((char_u *)"st");
7867 }
7868 
7869 /*
7870  * Commands starting with "g".
7871  */
7872     static void
7873 nv_g_cmd(cap)
7874     cmdarg_T	*cap;
7875 {
7876     oparg_T	*oap = cap->oap;
7877     pos_T	tpos;
7878     int		i;
7879     int		flag = FALSE;
7880 
7881     switch (cap->nchar)
7882     {
7883 #ifdef MEM_PROFILE
7884     /*
7885      * "g^A": dump log of used memory.
7886      */
7887     case Ctrl_A:
7888 	vim_mem_profile_dump();
7889 	break;
7890 #endif
7891 
7892 #ifdef FEAT_VREPLACE
7893     /*
7894      * "gR": Enter virtual replace mode.
7895      */
7896     case 'R':
7897 	cap->arg = TRUE;
7898 	nv_Replace(cap);
7899 	break;
7900 
7901     case 'r':
7902 	nv_vreplace(cap);
7903 	break;
7904 #endif
7905 
7906     case '&':
7907 	do_cmdline_cmd((char_u *)"%s//~/&");
7908 	break;
7909 
7910     /*
7911      * "gv": Reselect the previous Visual area.  If Visual already active,
7912      *	     exchange previous and current Visual area.
7913      */
7914     case 'v':
7915 	if (checkclearop(oap))
7916 	    break;
7917 
7918 	if (	   curbuf->b_visual.vi_start.lnum == 0
7919 		|| curbuf->b_visual.vi_start.lnum > curbuf->b_ml.ml_line_count
7920 		|| curbuf->b_visual.vi_end.lnum == 0)
7921 	    beep_flush();
7922 	else
7923 	{
7924 	    /* set w_cursor to the start of the Visual area, tpos to the end */
7925 	    if (VIsual_active)
7926 	    {
7927 		i = VIsual_mode;
7928 		VIsual_mode = curbuf->b_visual.vi_mode;
7929 		curbuf->b_visual.vi_mode = i;
7930 # ifdef FEAT_EVAL
7931 		curbuf->b_visual_mode_eval = i;
7932 # endif
7933 		i = curwin->w_curswant;
7934 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7935 		curbuf->b_visual.vi_curswant = i;
7936 
7937 		tpos = curbuf->b_visual.vi_end;
7938 		curbuf->b_visual.vi_end = curwin->w_cursor;
7939 		curwin->w_cursor = curbuf->b_visual.vi_start;
7940 		curbuf->b_visual.vi_start = VIsual;
7941 	    }
7942 	    else
7943 	    {
7944 		VIsual_mode = curbuf->b_visual.vi_mode;
7945 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7946 		tpos = curbuf->b_visual.vi_end;
7947 		curwin->w_cursor = curbuf->b_visual.vi_start;
7948 	    }
7949 
7950 	    VIsual_active = TRUE;
7951 	    VIsual_reselect = TRUE;
7952 
7953 	    /* Set Visual to the start and w_cursor to the end of the Visual
7954 	     * area.  Make sure they are on an existing character. */
7955 	    check_cursor();
7956 	    VIsual = curwin->w_cursor;
7957 	    curwin->w_cursor = tpos;
7958 	    check_cursor();
7959 	    update_topline();
7960 	    /*
7961 	     * When called from normal "g" command: start Select mode when
7962 	     * 'selectmode' contains "cmd".  When called for K_SELECT, always
7963 	     * start Select mode.
7964 	     */
7965 	    if (cap->arg)
7966 		VIsual_select = TRUE;
7967 	    else
7968 		may_start_select('c');
7969 #ifdef FEAT_MOUSE
7970 	    setmouse();
7971 #endif
7972 #ifdef FEAT_CLIPBOARD
7973 	    /* Make sure the clipboard gets updated.  Needed because start and
7974 	     * end are still the same, and the selection needs to be owned */
7975 	    clip_star.vmode = NUL;
7976 #endif
7977 	    redraw_curbuf_later(INVERTED);
7978 	    showmode();
7979 	}
7980 	break;
7981     /*
7982      * "gV": Don't reselect the previous Visual area after a Select mode
7983      *	     mapping of menu.
7984      */
7985     case 'V':
7986 	VIsual_reselect = FALSE;
7987 	break;
7988 
7989     /*
7990      * "gh":  start Select mode.
7991      * "gH":  start Select line mode.
7992      * "g^H": start Select block mode.
7993      */
7994     case K_BS:
7995 	cap->nchar = Ctrl_H;
7996 	/* FALLTHROUGH */
7997     case 'h':
7998     case 'H':
7999     case Ctrl_H:
8000 # ifdef EBCDIC
8001 	/* EBCDIC: 'v'-'h' != '^v'-'^h' */
8002 	if (cap->nchar == Ctrl_H)
8003 	    cap->cmdchar = Ctrl_V;
8004 	else
8005 # endif
8006 	cap->cmdchar = cap->nchar + ('v' - 'h');
8007 	cap->arg = TRUE;
8008 	nv_visual(cap);
8009 	break;
8010 
8011     /* "gn", "gN" visually select next/previous search match
8012      * "gn" selects next match
8013      * "gN" selects previous match
8014      */
8015     case 'N':
8016     case 'n':
8017 	if (!current_search(cap->count1, cap->nchar == 'n'))
8018 	    clearopbeep(oap);
8019 	break;
8020 
8021     /*
8022      * "gj" and "gk" two new funny movement keys -- up and down
8023      * movement based on *screen* line rather than *file* line.
8024      */
8025     case 'j':
8026     case K_DOWN:
8027 	/* with 'nowrap' it works just like the normal "j" command; also when
8028 	 * in a closed fold */
8029 	if (!curwin->w_p_wrap
8030 #ifdef FEAT_FOLDING
8031 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
8032 #endif
8033 		)
8034 	{
8035 	    oap->motion_type = MLINE;
8036 	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
8037 	}
8038 	else
8039 	    i = nv_screengo(oap, FORWARD, cap->count1);
8040 	if (i == FAIL)
8041 	    clearopbeep(oap);
8042 	break;
8043 
8044     case 'k':
8045     case K_UP:
8046 	/* with 'nowrap' it works just like the normal "k" command; also when
8047 	 * in a closed fold */
8048 	if (!curwin->w_p_wrap
8049 #ifdef FEAT_FOLDING
8050 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
8051 #endif
8052 	   )
8053 	{
8054 	    oap->motion_type = MLINE;
8055 	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
8056 	}
8057 	else
8058 	    i = nv_screengo(oap, BACKWARD, cap->count1);
8059 	if (i == FAIL)
8060 	    clearopbeep(oap);
8061 	break;
8062 
8063     /*
8064      * "gJ": join two lines without inserting a space.
8065      */
8066     case 'J':
8067 	nv_join(cap);
8068 	break;
8069 
8070     /*
8071      * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
8072      * "gm": middle of "g0" and "g$".
8073      */
8074     case '^':
8075 	flag = TRUE;
8076 	/* FALLTHROUGH */
8077 
8078     case '0':
8079     case 'm':
8080     case K_HOME:
8081     case K_KHOME:
8082 	oap->motion_type = MCHAR;
8083 	oap->inclusive = FALSE;
8084 	if (curwin->w_p_wrap
8085 #ifdef FEAT_VERTSPLIT
8086 		&& curwin->w_width != 0
8087 #endif
8088 		)
8089 	{
8090 	    int		width1 = W_WIDTH(curwin) - curwin_col_off();
8091 	    int		width2 = width1 + curwin_col_off2();
8092 
8093 	    validate_virtcol();
8094 	    i = 0;
8095 	    if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
8096 		i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
8097 	}
8098 	else
8099 	    i = curwin->w_leftcol;
8100 	/* Go to the middle of the screen line.  When 'number' or
8101 	 * 'relativenumber' is on and lines are wrapping the middle can be more
8102 	 * to the left. */
8103 	if (cap->nchar == 'm')
8104 	    i += (W_WIDTH(curwin) - curwin_col_off()
8105 		    + ((curwin->w_p_wrap && i > 0)
8106 			? curwin_col_off2() : 0)) / 2;
8107 	coladvance((colnr_T)i);
8108 	if (flag)
8109 	{
8110 	    do
8111 		i = gchar_cursor();
8112 	    while (vim_iswhite(i) && oneright() == OK);
8113 	}
8114 	curwin->w_set_curswant = TRUE;
8115 	break;
8116 
8117     case '_':
8118 	/* "g_": to the last non-blank character in the line or <count> lines
8119 	 * downward. */
8120 	cap->oap->motion_type = MCHAR;
8121 	cap->oap->inclusive = TRUE;
8122 	curwin->w_curswant = MAXCOL;
8123 	if (cursor_down((long)(cap->count1 - 1),
8124 					 cap->oap->op_type == OP_NOP) == FAIL)
8125 	    clearopbeep(cap->oap);
8126 	else
8127 	{
8128 	    char_u  *ptr = ml_get_curline();
8129 
8130 	    /* In Visual mode we may end up after the line. */
8131 	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
8132 		--curwin->w_cursor.col;
8133 
8134 	    /* Decrease the cursor column until it's on a non-blank. */
8135 	    while (curwin->w_cursor.col > 0
8136 				    && vim_iswhite(ptr[curwin->w_cursor.col]))
8137 		--curwin->w_cursor.col;
8138 	    curwin->w_set_curswant = TRUE;
8139 	    adjust_for_sel(cap);
8140 	}
8141 	break;
8142 
8143     case '$':
8144     case K_END:
8145     case K_KEND:
8146 	{
8147 	    int col_off = curwin_col_off();
8148 
8149 	    oap->motion_type = MCHAR;
8150 	    oap->inclusive = TRUE;
8151 	    if (curwin->w_p_wrap
8152 #ifdef FEAT_VERTSPLIT
8153 		    && curwin->w_width != 0
8154 #endif
8155 	       )
8156 	    {
8157 		curwin->w_curswant = MAXCOL;    /* so we stay at the end */
8158 		if (cap->count1 == 1)
8159 		{
8160 		    int		width1 = W_WIDTH(curwin) - col_off;
8161 		    int		width2 = width1 + curwin_col_off2();
8162 
8163 		    validate_virtcol();
8164 		    i = width1 - 1;
8165 		    if (curwin->w_virtcol >= (colnr_T)width1)
8166 			i += ((curwin->w_virtcol - width1) / width2 + 1)
8167 								     * width2;
8168 		    coladvance((colnr_T)i);
8169 
8170 		    /* Make sure we stick in this column. */
8171 		    validate_virtcol();
8172 		    curwin->w_curswant = curwin->w_virtcol;
8173 		    curwin->w_set_curswant = FALSE;
8174 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
8175 		    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
8176 		    {
8177 			/*
8178 			 * Check for landing on a character that got split at
8179 			 * the end of the line.  We do not want to advance to
8180 			 * the next screen line.
8181 			 */
8182 			if (curwin->w_virtcol > (colnr_T)i)
8183 			    --curwin->w_cursor.col;
8184 		    }
8185 #endif
8186 		}
8187 		else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
8188 		    clearopbeep(oap);
8189 	    }
8190 	    else
8191 	    {
8192 		i = curwin->w_leftcol + W_WIDTH(curwin) - col_off - 1;
8193 		coladvance((colnr_T)i);
8194 
8195 		/* Make sure we stick in this column. */
8196 		validate_virtcol();
8197 		curwin->w_curswant = curwin->w_virtcol;
8198 		curwin->w_set_curswant = FALSE;
8199 	    }
8200 	}
8201 	break;
8202 
8203     /*
8204      * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
8205      */
8206     case '*':
8207     case '#':
8208 #if POUND != '#'
8209     case POUND:		/* pound sign (sometimes equal to '#') */
8210 #endif
8211     case Ctrl_RSB:		/* :tag or :tselect for current identifier */
8212     case ']':			/* :tselect for current identifier */
8213 	nv_ident(cap);
8214 	break;
8215 
8216     /*
8217      * ge and gE: go back to end of word
8218      */
8219     case 'e':
8220     case 'E':
8221 	oap->motion_type = MCHAR;
8222 	curwin->w_set_curswant = TRUE;
8223 	oap->inclusive = TRUE;
8224 	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
8225 	    clearopbeep(oap);
8226 	break;
8227 
8228     /*
8229      * "g CTRL-G": display info about cursor position
8230      */
8231     case Ctrl_G:
8232 	cursor_pos_info();
8233 	break;
8234 
8235     /*
8236      * "gi": start Insert at the last position.
8237      */
8238     case 'i':
8239 	if (curbuf->b_last_insert.lnum != 0)
8240 	{
8241 	    curwin->w_cursor = curbuf->b_last_insert;
8242 	    check_cursor_lnum();
8243 	    i = (int)STRLEN(ml_get_curline());
8244 	    if (curwin->w_cursor.col > (colnr_T)i)
8245 	    {
8246 #ifdef FEAT_VIRTUALEDIT
8247 		if (virtual_active())
8248 		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
8249 #endif
8250 		curwin->w_cursor.col = i;
8251 	    }
8252 	}
8253 	cap->cmdchar = 'i';
8254 	nv_edit(cap);
8255 	break;
8256 
8257     /*
8258      * "gI": Start insert in column 1.
8259      */
8260     case 'I':
8261 	beginline(0);
8262 	if (!checkclearopq(oap))
8263 	    invoke_edit(cap, FALSE, 'g', FALSE);
8264 	break;
8265 
8266 #ifdef FEAT_SEARCHPATH
8267     /*
8268      * "gf": goto file, edit file under cursor
8269      * "]f" and "[f": can also be used.
8270      */
8271     case 'f':
8272     case 'F':
8273 	nv_gotofile(cap);
8274 	break;
8275 #endif
8276 
8277 	/* "g'm" and "g`m": jump to mark without setting pcmark */
8278     case '\'':
8279 	cap->arg = TRUE;
8280 	/*FALLTHROUGH*/
8281     case '`':
8282 	nv_gomark(cap);
8283 	break;
8284 
8285     /*
8286      * "gs": Goto sleep.
8287      */
8288     case 's':
8289 	do_sleep(cap->count1 * 1000L);
8290 	break;
8291 
8292     /*
8293      * "ga": Display the ascii value of the character under the
8294      * cursor.	It is displayed in decimal, hex, and octal. -- webb
8295      */
8296     case 'a':
8297 	do_ascii(NULL);
8298 	break;
8299 
8300 #ifdef FEAT_MBYTE
8301     /*
8302      * "g8": Display the bytes used for the UTF-8 character under the
8303      * cursor.	It is displayed in hex.
8304      * "8g8" finds illegal byte sequence.
8305      */
8306     case '8':
8307 	if (cap->count0 == 8)
8308 	    utf_find_illegal();
8309 	else
8310 	    show_utf8();
8311 	break;
8312 #endif
8313 
8314     case '<':
8315 	show_sb_text();
8316 	break;
8317 
8318     /*
8319      * "gg": Goto the first line in file.  With a count it goes to
8320      * that line number like for "G". -- webb
8321      */
8322     case 'g':
8323 	cap->arg = FALSE;
8324 	nv_goto(cap);
8325 	break;
8326 
8327     /*
8328      *	 Two-character operators:
8329      *	 "gq"	    Format text
8330      *	 "gw"	    Format text and keep cursor position
8331      *	 "g~"	    Toggle the case of the text.
8332      *	 "gu"	    Change text to lower case.
8333      *	 "gU"	    Change text to upper case.
8334      *   "g?"	    rot13 encoding
8335      *   "g@"	    call 'operatorfunc'
8336      */
8337     case 'q':
8338     case 'w':
8339 	oap->cursor_start = curwin->w_cursor;
8340 	/*FALLTHROUGH*/
8341     case '~':
8342     case 'u':
8343     case 'U':
8344     case '?':
8345     case '@':
8346 	nv_operator(cap);
8347 	break;
8348 
8349     /*
8350      * "gd": Find first occurrence of pattern under the cursor in the
8351      *	 current function
8352      * "gD": idem, but in the current file.
8353      */
8354     case 'd':
8355     case 'D':
8356 	nv_gd(oap, cap->nchar, (int)cap->count0);
8357 	break;
8358 
8359 #ifdef FEAT_MOUSE
8360     /*
8361      * g<*Mouse> : <C-*mouse>
8362      */
8363     case K_MIDDLEMOUSE:
8364     case K_MIDDLEDRAG:
8365     case K_MIDDLERELEASE:
8366     case K_LEFTMOUSE:
8367     case K_LEFTDRAG:
8368     case K_LEFTRELEASE:
8369     case K_RIGHTMOUSE:
8370     case K_RIGHTDRAG:
8371     case K_RIGHTRELEASE:
8372     case K_X1MOUSE:
8373     case K_X1DRAG:
8374     case K_X1RELEASE:
8375     case K_X2MOUSE:
8376     case K_X2DRAG:
8377     case K_X2RELEASE:
8378 	mod_mask = MOD_MASK_CTRL;
8379 	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
8380 	break;
8381 #endif
8382 
8383     case K_IGNORE:
8384 	break;
8385 
8386     /*
8387      * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
8388      */
8389     case 'p':
8390     case 'P':
8391 	nv_put(cap);
8392 	break;
8393 
8394 #ifdef FEAT_BYTEOFF
8395     /* "go": goto byte count from start of buffer */
8396     case 'o':
8397 	goto_byte(cap->count0);
8398 	break;
8399 #endif
8400 
8401     /* "gQ": improved Ex mode */
8402     case 'Q':
8403 	if (text_locked())
8404 	{
8405 	    clearopbeep(cap->oap);
8406 	    text_locked_msg();
8407 	    break;
8408 	}
8409 
8410 	if (!checkclearopq(oap))
8411 	    do_exmode(TRUE);
8412 	break;
8413 
8414 #ifdef FEAT_JUMPLIST
8415     case ',':
8416 	nv_pcmark(cap);
8417 	break;
8418 
8419     case ';':
8420 	cap->count1 = -cap->count1;
8421 	nv_pcmark(cap);
8422 	break;
8423 #endif
8424 
8425 #ifdef FEAT_WINDOWS
8426     case 't':
8427 	if (!checkclearop(oap))
8428 	    goto_tabpage((int)cap->count0);
8429 	break;
8430     case 'T':
8431 	if (!checkclearop(oap))
8432 	    goto_tabpage(-(int)cap->count1);
8433 	break;
8434 #endif
8435 
8436     case '+':
8437     case '-': /* "g+" and "g-": undo or redo along the timeline */
8438 	if (!checkclearopq(oap))
8439 	    undo_time(cap->nchar == '-' ? -cap->count1 : cap->count1,
8440 							 FALSE, FALSE, FALSE);
8441 	break;
8442 
8443     default:
8444 	clearopbeep(oap);
8445 	break;
8446     }
8447 }
8448 
8449 /*
8450  * Handle "o" and "O" commands.
8451  */
8452     static void
8453 n_opencmd(cap)
8454     cmdarg_T	*cap;
8455 {
8456 #ifdef FEAT_CONCEAL
8457     linenr_T	oldline = curwin->w_cursor.lnum;
8458 #endif
8459 
8460     if (!checkclearopq(cap->oap))
8461     {
8462 #ifdef FEAT_FOLDING
8463 	if (cap->cmdchar == 'O')
8464 	    /* Open above the first line of a folded sequence of lines */
8465 	    (void)hasFolding(curwin->w_cursor.lnum,
8466 						&curwin->w_cursor.lnum, NULL);
8467 	else
8468 	    /* Open below the last line of a folded sequence of lines */
8469 	    (void)hasFolding(curwin->w_cursor.lnum,
8470 						NULL, &curwin->w_cursor.lnum);
8471 #endif
8472 	if (u_save((linenr_T)(curwin->w_cursor.lnum -
8473 					       (cap->cmdchar == 'O' ? 1 : 0)),
8474 		   (linenr_T)(curwin->w_cursor.lnum +
8475 					       (cap->cmdchar == 'o' ? 1 : 0))
8476 		       ) == OK
8477 		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
8478 #ifdef FEAT_COMMENTS
8479 		    has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM :
8480 #endif
8481 		    0, 0))
8482 	{
8483 #ifdef FEAT_CONCEAL
8484 	    if (curwin->w_p_cole > 0 && oldline != curwin->w_cursor.lnum)
8485 		update_single_line(curwin, oldline);
8486 #endif
8487 	    /* When '#' is in 'cpoptions' ignore the count. */
8488 	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
8489 		cap->count1 = 1;
8490 #ifdef FEAT_SYN_HL
8491 	    if (curwin->w_p_cul)
8492 		/* force redraw of cursorline */
8493 		curwin->w_valid &= ~VALID_CROW;
8494 #endif
8495 	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
8496 	}
8497     }
8498 }
8499 
8500 /*
8501  * "." command: redo last change.
8502  */
8503     static void
8504 nv_dot(cap)
8505     cmdarg_T	*cap;
8506 {
8507     if (!checkclearopq(cap->oap))
8508     {
8509 	/*
8510 	 * If "restart_edit" is TRUE, the last but one command is repeated
8511 	 * instead of the last command (inserting text). This is used for
8512 	 * CTRL-O <.> in insert mode.
8513 	 */
8514 	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
8515 	    clearopbeep(cap->oap);
8516     }
8517 }
8518 
8519 /*
8520  * CTRL-R: undo undo
8521  */
8522     static void
8523 nv_redo(cap)
8524     cmdarg_T	*cap;
8525 {
8526     if (!checkclearopq(cap->oap))
8527     {
8528 	u_redo((int)cap->count1);
8529 	curwin->w_set_curswant = TRUE;
8530     }
8531 }
8532 
8533 /*
8534  * Handle "U" command.
8535  */
8536     static void
8537 nv_Undo(cap)
8538     cmdarg_T	*cap;
8539 {
8540     /* In Visual mode and typing "gUU" triggers an operator */
8541     if (cap->oap->op_type == OP_UPPER || VIsual_active)
8542     {
8543 	/* translate "gUU" to "gUgU" */
8544 	cap->cmdchar = 'g';
8545 	cap->nchar = 'U';
8546 	nv_operator(cap);
8547     }
8548     else if (!checkclearopq(cap->oap))
8549     {
8550 	u_undoline();
8551 	curwin->w_set_curswant = TRUE;
8552     }
8553 }
8554 
8555 /*
8556  * '~' command: If tilde is not an operator and Visual is off: swap case of a
8557  * single character.
8558  */
8559     static void
8560 nv_tilde(cap)
8561     cmdarg_T	*cap;
8562 {
8563     if (!p_to && !VIsual_active && cap->oap->op_type != OP_TILDE)
8564 	n_swapchar(cap);
8565     else
8566 	nv_operator(cap);
8567 }
8568 
8569 /*
8570  * Handle an operator command.
8571  * The actual work is done by do_pending_operator().
8572  */
8573     static void
8574 nv_operator(cap)
8575     cmdarg_T	*cap;
8576 {
8577     int	    op_type;
8578 
8579     op_type = get_op_type(cap->cmdchar, cap->nchar);
8580 
8581     if (op_type == cap->oap->op_type)	    /* double operator works on lines */
8582 	nv_lineop(cap);
8583     else if (!checkclearop(cap->oap))
8584     {
8585 	cap->oap->start = curwin->w_cursor;
8586 	cap->oap->op_type = op_type;
8587 #ifdef FEAT_EVAL
8588 	set_op_var(op_type);
8589 #endif
8590     }
8591 }
8592 
8593 #ifdef FEAT_EVAL
8594 /*
8595  * Set v:operator to the characters for "optype".
8596  */
8597     static void
8598 set_op_var(optype)
8599     int optype;
8600 {
8601     char_u	opchars[3];
8602 
8603     if (optype == OP_NOP)
8604 	set_vim_var_string(VV_OP, NULL, 0);
8605     else
8606     {
8607 	opchars[0] = get_op_char(optype);
8608 	opchars[1] = get_extra_op_char(optype);
8609 	opchars[2] = NUL;
8610 	set_vim_var_string(VV_OP, opchars, -1);
8611     }
8612 }
8613 #endif
8614 
8615 /*
8616  * Handle linewise operator "dd", "yy", etc.
8617  *
8618  * "_" is is a strange motion command that helps make operators more logical.
8619  * It is actually implemented, but not documented in the real Vi.  This motion
8620  * command actually refers to "the current line".  Commands like "dd" and "yy"
8621  * are really an alternate form of "d_" and "y_".  It does accept a count, so
8622  * "d3_" works to delete 3 lines.
8623  */
8624     static void
8625 nv_lineop(cap)
8626     cmdarg_T	*cap;
8627 {
8628     cap->oap->motion_type = MLINE;
8629     if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
8630 	clearopbeep(cap->oap);
8631     else if (  (cap->oap->op_type == OP_DELETE /* only with linewise motions */
8632 		&& cap->oap->motion_force != 'v'
8633 		&& cap->oap->motion_force != Ctrl_V)
8634 	    || cap->oap->op_type == OP_LSHIFT
8635 	    || cap->oap->op_type == OP_RSHIFT)
8636 	beginline(BL_SOL | BL_FIX);
8637     else if (cap->oap->op_type != OP_YANK)	/* 'Y' does not move cursor */
8638 	beginline(BL_WHITE | BL_FIX);
8639 }
8640 
8641 /*
8642  * <Home> command.
8643  */
8644     static void
8645 nv_home(cap)
8646     cmdarg_T	*cap;
8647 {
8648     /* CTRL-HOME is like "gg" */
8649     if (mod_mask & MOD_MASK_CTRL)
8650 	nv_goto(cap);
8651     else
8652     {
8653 	cap->count0 = 1;
8654 	nv_pipe(cap);
8655     }
8656     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8657 			       one-character line). */
8658 }
8659 
8660 /*
8661  * "|" command.
8662  */
8663     static void
8664 nv_pipe(cap)
8665     cmdarg_T *cap;
8666 {
8667     cap->oap->motion_type = MCHAR;
8668     cap->oap->inclusive = FALSE;
8669     beginline(0);
8670     if (cap->count0 > 0)
8671     {
8672 	coladvance((colnr_T)(cap->count0 - 1));
8673 	curwin->w_curswant = (colnr_T)(cap->count0 - 1);
8674     }
8675     else
8676 	curwin->w_curswant = 0;
8677     /* keep curswant at the column where we wanted to go, not where
8678      * we ended; differs if line is too short */
8679     curwin->w_set_curswant = FALSE;
8680 }
8681 
8682 /*
8683  * Handle back-word command "b" and "B".
8684  * cap->arg is 1 for "B"
8685  */
8686     static void
8687 nv_bck_word(cap)
8688     cmdarg_T	*cap;
8689 {
8690     cap->oap->motion_type = MCHAR;
8691     cap->oap->inclusive = FALSE;
8692     curwin->w_set_curswant = TRUE;
8693     if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
8694 	clearopbeep(cap->oap);
8695 #ifdef FEAT_FOLDING
8696     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8697 	foldOpenCursor();
8698 #endif
8699 }
8700 
8701 /*
8702  * Handle word motion commands "e", "E", "w" and "W".
8703  * cap->arg is TRUE for "E" and "W".
8704  */
8705     static void
8706 nv_wordcmd(cap)
8707     cmdarg_T	*cap;
8708 {
8709     int		n;
8710     int		word_end;
8711     int		flag = FALSE;
8712     pos_T	startpos = curwin->w_cursor;
8713 
8714     /*
8715      * Set inclusive for the "E" and "e" command.
8716      */
8717     if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
8718 	word_end = TRUE;
8719     else
8720 	word_end = FALSE;
8721     cap->oap->inclusive = word_end;
8722 
8723     /*
8724      * "cw" and "cW" are a special case.
8725      */
8726     if (!word_end && cap->oap->op_type == OP_CHANGE)
8727     {
8728 	n = gchar_cursor();
8729 	if (n != NUL)			/* not an empty line */
8730 	{
8731 	    if (vim_iswhite(n))
8732 	    {
8733 		/*
8734 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
8735 		 * changes one character, not all blanks until the start of
8736 		 * the next word.  Only do this when the 'w' flag is included
8737 		 * in 'cpoptions'.
8738 		 */
8739 		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
8740 		{
8741 		    cap->oap->inclusive = TRUE;
8742 		    cap->oap->motion_type = MCHAR;
8743 		    return;
8744 		}
8745 	    }
8746 	    else
8747 	    {
8748 		/*
8749 		 * This is a little strange. To match what the real Vi does,
8750 		 * we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
8751 		 * that we are not on a space or a TAB.  This seems impolite
8752 		 * at first, but it's really more what we mean when we say
8753 		 * 'cw'.
8754 		 * Another strangeness: When standing on the end of a word
8755 		 * "ce" will change until the end of the next word, but "cw"
8756 		 * will change only one character! This is done by setting
8757 		 * flag.
8758 		 */
8759 		cap->oap->inclusive = TRUE;
8760 		word_end = TRUE;
8761 		flag = TRUE;
8762 	    }
8763 	}
8764     }
8765 
8766     cap->oap->motion_type = MCHAR;
8767     curwin->w_set_curswant = TRUE;
8768     if (word_end)
8769 	n = end_word(cap->count1, cap->arg, flag, FALSE);
8770     else
8771 	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
8772 
8773     /* Don't leave the cursor on the NUL past the end of line. Unless we
8774      * didn't move it forward. */
8775     if (lt(startpos, curwin->w_cursor))
8776 	adjust_cursor(cap->oap);
8777 
8778     if (n == FAIL && cap->oap->op_type == OP_NOP)
8779 	clearopbeep(cap->oap);
8780     else
8781     {
8782 	adjust_for_sel(cap);
8783 #ifdef FEAT_FOLDING
8784 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8785 	    foldOpenCursor();
8786 #endif
8787     }
8788 }
8789 
8790 /*
8791  * Used after a movement command: If the cursor ends up on the NUL after the
8792  * end of the line, may move it back to the last character and make the motion
8793  * inclusive.
8794  */
8795     static void
8796 adjust_cursor(oap)
8797     oparg_T *oap;
8798 {
8799     /* The cursor cannot remain on the NUL when:
8800      * - the column is > 0
8801      * - not in Visual mode or 'selection' is "o"
8802      * - 'virtualedit' is not "all" and not "onemore".
8803      */
8804     if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL
8805 		&& (!VIsual_active || *p_sel == 'o')
8806 #ifdef FEAT_VIRTUALEDIT
8807 		&& !virtual_active() && (ve_flags & VE_ONEMORE) == 0
8808 #endif
8809 		)
8810     {
8811 	--curwin->w_cursor.col;
8812 #ifdef FEAT_MBYTE
8813 	/* prevent cursor from moving on the trail byte */
8814 	if (has_mbyte)
8815 	    mb_adjust_cursor();
8816 #endif
8817 	oap->inclusive = TRUE;
8818     }
8819 }
8820 
8821 /*
8822  * "0" and "^" commands.
8823  * cap->arg is the argument for beginline().
8824  */
8825     static void
8826 nv_beginline(cap)
8827     cmdarg_T	*cap;
8828 {
8829     cap->oap->motion_type = MCHAR;
8830     cap->oap->inclusive = FALSE;
8831     beginline(cap->arg);
8832 #ifdef FEAT_FOLDING
8833     if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8834 	foldOpenCursor();
8835 #endif
8836     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8837 			       one-character line). */
8838 }
8839 
8840 /*
8841  * In exclusive Visual mode, may include the last character.
8842  */
8843     static void
8844 adjust_for_sel(cap)
8845     cmdarg_T	*cap;
8846 {
8847     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
8848 	    && gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor))
8849     {
8850 #ifdef FEAT_MBYTE
8851 	if (has_mbyte)
8852 	    inc_cursor();
8853 	else
8854 #endif
8855 	    ++curwin->w_cursor.col;
8856 	cap->oap->inclusive = FALSE;
8857     }
8858 }
8859 
8860 /*
8861  * Exclude last character at end of Visual area for 'selection' == "exclusive".
8862  * Should check VIsual_mode before calling this.
8863  * Returns TRUE when backed up to the previous line.
8864  */
8865     static int
8866 unadjust_for_sel()
8867 {
8868     pos_T	*pp;
8869 
8870     if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor))
8871     {
8872 	if (lt(VIsual, curwin->w_cursor))
8873 	    pp = &curwin->w_cursor;
8874 	else
8875 	    pp = &VIsual;
8876 #ifdef FEAT_VIRTUALEDIT
8877 	if (pp->coladd > 0)
8878 	    --pp->coladd;
8879 	else
8880 #endif
8881 	if (pp->col > 0)
8882 	{
8883 	    --pp->col;
8884 #ifdef FEAT_MBYTE
8885 	    mb_adjustpos(curbuf, pp);
8886 #endif
8887 	}
8888 	else if (pp->lnum > 1)
8889 	{
8890 	    --pp->lnum;
8891 	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
8892 	    return TRUE;
8893 	}
8894     }
8895     return FALSE;
8896 }
8897 
8898 /*
8899  * SELECT key in Normal or Visual mode: end of Select mode mapping.
8900  */
8901     static void
8902 nv_select(cap)
8903     cmdarg_T	*cap;
8904 {
8905     if (VIsual_active)
8906 	VIsual_select = TRUE;
8907     else if (VIsual_reselect)
8908     {
8909 	cap->nchar = 'v';	    /* fake "gv" command */
8910 	cap->arg = TRUE;
8911 	nv_g_cmd(cap);
8912     }
8913 }
8914 
8915 
8916 /*
8917  * "G", "gg", CTRL-END, CTRL-HOME.
8918  * cap->arg is TRUE for "G".
8919  */
8920     static void
8921 nv_goto(cap)
8922     cmdarg_T	*cap;
8923 {
8924     linenr_T	lnum;
8925 
8926     if (cap->arg)
8927 	lnum = curbuf->b_ml.ml_line_count;
8928     else
8929 	lnum = 1L;
8930     cap->oap->motion_type = MLINE;
8931     setpcmark();
8932 
8933     /* When a count is given, use it instead of the default lnum */
8934     if (cap->count0 != 0)
8935 	lnum = cap->count0;
8936     if (lnum < 1L)
8937 	lnum = 1L;
8938     else if (lnum > curbuf->b_ml.ml_line_count)
8939 	lnum = curbuf->b_ml.ml_line_count;
8940     curwin->w_cursor.lnum = lnum;
8941     beginline(BL_SOL | BL_FIX);
8942 #ifdef FEAT_FOLDING
8943     if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP)
8944 	foldOpenCursor();
8945 #endif
8946 }
8947 
8948 /*
8949  * CTRL-\ in Normal mode.
8950  */
8951     static void
8952 nv_normal(cap)
8953     cmdarg_T	*cap;
8954 {
8955     if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G)
8956     {
8957 	clearop(cap->oap);
8958 	if (restart_edit != 0 && mode_displayed)
8959 	    clear_cmdline = TRUE;		/* unshow mode later */
8960 	restart_edit = 0;
8961 #ifdef FEAT_CMDWIN
8962 	if (cmdwin_type != 0)
8963 	    cmdwin_result = Ctrl_C;
8964 #endif
8965 	if (VIsual_active)
8966 	{
8967 	    end_visual_mode();		/* stop Visual */
8968 	    redraw_curbuf_later(INVERTED);
8969 	}
8970 	/* CTRL-\ CTRL-G restarts Insert mode when 'insertmode' is set. */
8971 	if (cap->nchar == Ctrl_G && p_im)
8972 	    restart_edit = 'a';
8973     }
8974     else
8975 	clearopbeep(cap->oap);
8976 }
8977 
8978 /*
8979  * ESC in Normal mode: beep, but don't flush buffers.
8980  * Don't even beep if we are canceling a command.
8981  */
8982     static void
8983 nv_esc(cap)
8984     cmdarg_T	*cap;
8985 {
8986     int		no_reason;
8987 
8988     no_reason = (cap->oap->op_type == OP_NOP
8989 		&& cap->opcount == 0
8990 		&& cap->count0 == 0
8991 		&& cap->oap->regname == 0
8992 		&& !p_im);
8993 
8994     if (cap->arg)		/* TRUE for CTRL-C */
8995     {
8996 	if (restart_edit == 0
8997 #ifdef FEAT_CMDWIN
8998 		&& cmdwin_type == 0
8999 #endif
9000 		&& !VIsual_active
9001 		&& no_reason)
9002 	    MSG(_("Type  :quit<Enter>  to exit Vim"));
9003 
9004 	/* Don't reset "restart_edit" when 'insertmode' is set, it won't be
9005 	 * set again below when halfway a mapping. */
9006 	if (!p_im)
9007 	    restart_edit = 0;
9008 #ifdef FEAT_CMDWIN
9009 	if (cmdwin_type != 0)
9010 	{
9011 	    cmdwin_result = K_IGNORE;
9012 	    got_int = FALSE;	/* don't stop executing autocommands et al. */
9013 	    return;
9014 	}
9015 #endif
9016     }
9017 
9018     if (VIsual_active)
9019     {
9020 	end_visual_mode();	/* stop Visual */
9021 	check_cursor_col();	/* make sure cursor is not beyond EOL */
9022 	curwin->w_set_curswant = TRUE;
9023 	redraw_curbuf_later(INVERTED);
9024     }
9025     else if (no_reason)
9026 	vim_beep();
9027     clearop(cap->oap);
9028 
9029     /* A CTRL-C is often used at the start of a menu.  When 'insertmode' is
9030      * set return to Insert mode afterwards. */
9031     if (restart_edit == 0 && goto_im()
9032 #ifdef FEAT_EX_EXTRA
9033 	    && ex_normal_busy == 0
9034 #endif
9035 	    )
9036 	restart_edit = 'a';
9037 }
9038 
9039 /*
9040  * Handle "A", "a", "I", "i" and <Insert> commands.
9041  */
9042     static void
9043 nv_edit(cap)
9044     cmdarg_T *cap;
9045 {
9046     /* <Insert> is equal to "i" */
9047     if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
9048 	cap->cmdchar = 'i';
9049 
9050     /* in Visual mode "A" and "I" are an operator */
9051     if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
9052 	v_visop(cap);
9053 
9054     /* in Visual mode and after an operator "a" and "i" are for text objects */
9055     else if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
9056 	    && (cap->oap->op_type != OP_NOP || VIsual_active))
9057     {
9058 #ifdef FEAT_TEXTOBJ
9059 	nv_object(cap);
9060 #else
9061 	clearopbeep(cap->oap);
9062 #endif
9063     }
9064     else if (!curbuf->b_p_ma && !p_im)
9065     {
9066 	/* Only give this error when 'insertmode' is off. */
9067 	EMSG(_(e_modifiable));
9068 	clearop(cap->oap);
9069     }
9070     else if (!checkclearopq(cap->oap))
9071     {
9072 	switch (cap->cmdchar)
9073 	{
9074 	    case 'A':	/* "A"ppend after the line */
9075 		curwin->w_set_curswant = TRUE;
9076 #ifdef FEAT_VIRTUALEDIT
9077 		if (ve_flags == VE_ALL)
9078 		{
9079 		    int save_State = State;
9080 
9081 		    /* Pretend Insert mode here to allow the cursor on the
9082 		     * character past the end of the line */
9083 		    State = INSERT;
9084 		    coladvance((colnr_T)MAXCOL);
9085 		    State = save_State;
9086 		}
9087 		else
9088 #endif
9089 		    curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
9090 		break;
9091 
9092 	    case 'I':	/* "I"nsert before the first non-blank */
9093 		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
9094 		    beginline(BL_WHITE);
9095 		else
9096 		    beginline(BL_WHITE|BL_FIX);
9097 		break;
9098 
9099 	    case 'a':	/* "a"ppend is like "i"nsert on the next character. */
9100 #ifdef FEAT_VIRTUALEDIT
9101 		/* increment coladd when in virtual space, increment the
9102 		 * column otherwise, also to append after an unprintable char */
9103 		if (virtual_active()
9104 			&& (curwin->w_cursor.coladd > 0
9105 			    || *ml_get_cursor() == NUL
9106 			    || *ml_get_cursor() == TAB))
9107 		    curwin->w_cursor.coladd++;
9108 		else
9109 #endif
9110 		if (*ml_get_cursor() != NUL)
9111 		    inc_cursor();
9112 		break;
9113 	}
9114 
9115 #ifdef FEAT_VIRTUALEDIT
9116 	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
9117 	{
9118 	    int save_State = State;
9119 
9120 	    /* Pretend Insert mode here to allow the cursor on the
9121 	     * character past the end of the line */
9122 	    State = INSERT;
9123 	    coladvance(getviscol());
9124 	    State = save_State;
9125 	}
9126 #endif
9127 
9128 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
9129     }
9130 }
9131 
9132 /*
9133  * Invoke edit() and take care of "restart_edit" and the return value.
9134  */
9135     static void
9136 invoke_edit(cap, repl, cmd, startln)
9137     cmdarg_T	*cap;
9138     int		repl;		/* "r" or "gr" command */
9139     int		cmd;
9140     int		startln;
9141 {
9142     int		restart_edit_save = 0;
9143 
9144     /* Complicated: When the user types "a<C-O>a" we don't want to do Insert
9145      * mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
9146      * it. */
9147     if (repl || !stuff_empty())
9148 	restart_edit_save = restart_edit;
9149     else
9150 	restart_edit_save = 0;
9151 
9152     /* Always reset "restart_edit", this is not a restarted edit. */
9153     restart_edit = 0;
9154 
9155     if (edit(cmd, startln, cap->count1))
9156 	cap->retval |= CA_COMMAND_BUSY;
9157 
9158     if (restart_edit == 0)
9159 	restart_edit = restart_edit_save;
9160 }
9161 
9162 #ifdef FEAT_TEXTOBJ
9163 /*
9164  * "a" or "i" while an operator is pending or in Visual mode: object motion.
9165  */
9166     static void
9167 nv_object(cap)
9168     cmdarg_T	*cap;
9169 {
9170     int		flag;
9171     int		include;
9172     char_u	*mps_save;
9173 
9174     if (cap->cmdchar == 'i')
9175 	include = FALSE;    /* "ix" = inner object: exclude white space */
9176     else
9177 	include = TRUE;	    /* "ax" = an object: include white space */
9178 
9179     /* Make sure (), [], {} and <> are in 'matchpairs' */
9180     mps_save = curbuf->b_p_mps;
9181     curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";
9182 
9183     switch (cap->nchar)
9184     {
9185 	case 'w': /* "aw" = a word */
9186 		flag = current_word(cap->oap, cap->count1, include, FALSE);
9187 		break;
9188 	case 'W': /* "aW" = a WORD */
9189 		flag = current_word(cap->oap, cap->count1, include, TRUE);
9190 		break;
9191 	case 'b': /* "ab" = a braces block */
9192 	case '(':
9193 	case ')':
9194 		flag = current_block(cap->oap, cap->count1, include, '(', ')');
9195 		break;
9196 	case 'B': /* "aB" = a Brackets block */
9197 	case '{':
9198 	case '}':
9199 		flag = current_block(cap->oap, cap->count1, include, '{', '}');
9200 		break;
9201 	case '[': /* "a[" = a [] block */
9202 	case ']':
9203 		flag = current_block(cap->oap, cap->count1, include, '[', ']');
9204 		break;
9205 	case '<': /* "a<" = a <> block */
9206 	case '>':
9207 		flag = current_block(cap->oap, cap->count1, include, '<', '>');
9208 		break;
9209 	case 't': /* "at" = a tag block (xml and html) */
9210 		/* Do not adjust oap->end in do_pending_operator()
9211 		 * otherwise there are different results for 'dit'
9212 		 * (note leading whitespace in last line):
9213 		 * 1) <b>      2) <b>
9214 		 *    foobar      foobar
9215 		 *    </b>            </b>
9216 		 */
9217 		cap->retval |= CA_NO_ADJ_OP_END;
9218 		flag = current_tagblock(cap->oap, cap->count1, include);
9219 		break;
9220 	case 'p': /* "ap" = a paragraph */
9221 		flag = current_par(cap->oap, cap->count1, include, 'p');
9222 		break;
9223 	case 's': /* "as" = a sentence */
9224 		flag = current_sent(cap->oap, cap->count1, include);
9225 		break;
9226 	case '"': /* "a"" = a double quoted string */
9227 	case '\'': /* "a'" = a single quoted string */
9228 	case '`': /* "a`" = a backtick quoted string */
9229 		flag = current_quote(cap->oap, cap->count1, include,
9230 								  cap->nchar);
9231 		break;
9232 #if 0	/* TODO */
9233 	case 'S': /* "aS" = a section */
9234 	case 'f': /* "af" = a filename */
9235 	case 'u': /* "au" = a URL */
9236 #endif
9237 	default:
9238 		flag = FAIL;
9239 		break;
9240     }
9241 
9242     curbuf->b_p_mps = mps_save;
9243     if (flag == FAIL)
9244 	clearopbeep(cap->oap);
9245     adjust_cursor_col();
9246     curwin->w_set_curswant = TRUE;
9247 }
9248 #endif
9249 
9250 /*
9251  * "q" command: Start/stop recording.
9252  * "q:", "q/", "q?": edit command-line in command-line window.
9253  */
9254     static void
9255 nv_record(cap)
9256     cmdarg_T	*cap;
9257 {
9258     if (cap->oap->op_type == OP_FORMAT)
9259     {
9260 	/* "gqq" is the same as "gqgq": format line */
9261 	cap->cmdchar = 'g';
9262 	cap->nchar = 'q';
9263 	nv_operator(cap);
9264     }
9265     else if (!checkclearop(cap->oap))
9266     {
9267 #ifdef FEAT_CMDWIN
9268 	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
9269 	{
9270 	    stuffcharReadbuff(cap->nchar);
9271 	    stuffcharReadbuff(K_CMDWIN);
9272 	}
9273 	else
9274 #endif
9275 	    /* (stop) recording into a named register, unless executing a
9276 	     * register */
9277 	    if (!Exec_reg && do_record(cap->nchar) == FAIL)
9278 		clearopbeep(cap->oap);
9279     }
9280 }
9281 
9282 /*
9283  * Handle the "@r" command.
9284  */
9285     static void
9286 nv_at(cap)
9287     cmdarg_T	*cap;
9288 {
9289     if (checkclearop(cap->oap))
9290 	return;
9291 #ifdef FEAT_EVAL
9292     if (cap->nchar == '=')
9293     {
9294 	if (get_expr_register() == NUL)
9295 	    return;
9296     }
9297 #endif
9298     while (cap->count1-- && !got_int)
9299     {
9300 	if (do_execreg(cap->nchar, FALSE, FALSE, FALSE) == FAIL)
9301 	{
9302 	    clearopbeep(cap->oap);
9303 	    break;
9304 	}
9305 	line_breakcheck();
9306     }
9307 }
9308 
9309 /*
9310  * Handle the CTRL-U and CTRL-D commands.
9311  */
9312     static void
9313 nv_halfpage(cap)
9314     cmdarg_T	*cap;
9315 {
9316     if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
9317 	    || (cap->cmdchar == Ctrl_D
9318 		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
9319 	clearopbeep(cap->oap);
9320     else if (!checkclearop(cap->oap))
9321 	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
9322 }
9323 
9324 /*
9325  * Handle "J" or "gJ" command.
9326  */
9327     static void
9328 nv_join(cap)
9329     cmdarg_T *cap;
9330 {
9331     if (VIsual_active)	/* join the visual lines */
9332 	nv_operator(cap);
9333     else if (!checkclearop(cap->oap))
9334     {
9335 	if (cap->count0 <= 1)
9336 	    cap->count0 = 2;	    /* default for join is two lines! */
9337 	if (curwin->w_cursor.lnum + cap->count0 - 1 >
9338 						   curbuf->b_ml.ml_line_count)
9339 	    clearopbeep(cap->oap);  /* beyond last line */
9340 	else
9341 	{
9342 	    prep_redo(cap->oap->regname, cap->count0,
9343 			 NUL, cap->cmdchar, NUL, NUL, cap->nchar);
9344 	    (void)do_join(cap->count0, cap->nchar == NUL, TRUE, TRUE, TRUE);
9345 	}
9346     }
9347 }
9348 
9349 /*
9350  * "P", "gP", "p" and "gp" commands.
9351  */
9352     static void
9353 nv_put(cap)
9354     cmdarg_T  *cap;
9355 {
9356     int		regname = 0;
9357     void	*reg1 = NULL, *reg2 = NULL;
9358     int		empty = FALSE;
9359     int		was_visual = FALSE;
9360     int		dir;
9361     int		flags = 0;
9362 
9363     if (cap->oap->op_type != OP_NOP)
9364     {
9365 #ifdef FEAT_DIFF
9366 	/* "dp" is ":diffput" */
9367 	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
9368 	{
9369 	    clearop(cap->oap);
9370 	    nv_diffgetput(TRUE, cap->opcount);
9371 	}
9372 	else
9373 #endif
9374 	clearopbeep(cap->oap);
9375     }
9376     else
9377     {
9378 	dir = (cap->cmdchar == 'P'
9379 		|| (cap->cmdchar == 'g' && cap->nchar == 'P'))
9380 							 ? BACKWARD : FORWARD;
9381 	prep_redo_cmd(cap);
9382 	if (cap->cmdchar == 'g')
9383 	    flags |= PUT_CURSEND;
9384 
9385 	if (VIsual_active)
9386 	{
9387 	    /* Putting in Visual mode: The put text replaces the selected
9388 	     * text.  First delete the selected text, then put the new text.
9389 	     * Need to save and restore the registers that the delete
9390 	     * overwrites if the old contents is being put.
9391 	     */
9392 	    was_visual = TRUE;
9393 	    regname = cap->oap->regname;
9394 #ifdef FEAT_CLIPBOARD
9395 	    adjust_clip_reg(&regname);
9396 #endif
9397 	   if (regname == 0 || regname == '"'
9398 				     || VIM_ISDIGIT(regname) || regname == '-'
9399 #ifdef FEAT_CLIPBOARD
9400 		    || (clip_unnamed && (regname == '*' || regname == '+'))
9401 #endif
9402 
9403 		    )
9404 	    {
9405 		/* The delete is going to overwrite the register we want to
9406 		 * put, save it first. */
9407 		reg1 = get_register(regname, TRUE);
9408 	    }
9409 
9410 	    /* Now delete the selected text. */
9411 	    cap->cmdchar = 'd';
9412 	    cap->nchar = NUL;
9413 	    cap->oap->regname = NUL;
9414 	    nv_operator(cap);
9415 	    do_pending_operator(cap, 0, FALSE);
9416 	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
9417 
9418 	    /* delete PUT_LINE_BACKWARD; */
9419 	    cap->oap->regname = regname;
9420 
9421 	    if (reg1 != NULL)
9422 	    {
9423 		/* Delete probably changed the register we want to put, save
9424 		 * it first. Then put back what was there before the delete. */
9425 		reg2 = get_register(regname, FALSE);
9426 		put_register(regname, reg1);
9427 	    }
9428 
9429 	    /* When deleted a linewise Visual area, put the register as
9430 	     * lines to avoid it joined with the next line.  When deletion was
9431 	     * characterwise, split a line when putting lines. */
9432 	    if (VIsual_mode == 'V')
9433 		flags |= PUT_LINE;
9434 	    else if (VIsual_mode == 'v')
9435 		flags |= PUT_LINE_SPLIT;
9436 	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
9437 		flags |= PUT_LINE_FORWARD;
9438 	    dir = BACKWARD;
9439 	    if ((VIsual_mode != 'V'
9440 			&& curwin->w_cursor.col < curbuf->b_op_start.col)
9441 		    || (VIsual_mode == 'V'
9442 			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
9443 		/* cursor is at the end of the line or end of file, put
9444 		 * forward. */
9445 		dir = FORWARD;
9446 	    /* May have been reset in do_put(). */
9447 	    VIsual_active = TRUE;
9448 	}
9449 	do_put(cap->oap->regname, dir, cap->count1, flags);
9450 
9451 	/* If a register was saved, put it back now. */
9452 	if (reg2 != NULL)
9453 	    put_register(regname, reg2);
9454 
9455 	/* What to reselect with "gv"?  Selecting the just put text seems to
9456 	 * be the most useful, since the original text was removed. */
9457 	if (was_visual)
9458 	{
9459 	    curbuf->b_visual.vi_start = curbuf->b_op_start;
9460 	    curbuf->b_visual.vi_end = curbuf->b_op_end;
9461 	}
9462 
9463 	/* When all lines were selected and deleted do_put() leaves an empty
9464 	 * line that needs to be deleted now. */
9465 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
9466 	{
9467 	    ml_delete(curbuf->b_ml.ml_line_count, TRUE);
9468 
9469 	    /* If the cursor was in that line, move it to the end of the last
9470 	     * line. */
9471 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
9472 	    {
9473 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
9474 		coladvance((colnr_T)MAXCOL);
9475 	    }
9476 	}
9477 	auto_format(FALSE, TRUE);
9478     }
9479 }
9480 
9481 /*
9482  * "o" and "O" commands.
9483  */
9484     static void
9485 nv_open(cap)
9486     cmdarg_T	*cap;
9487 {
9488 #ifdef FEAT_DIFF
9489     /* "do" is ":diffget" */
9490     if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
9491     {
9492 	clearop(cap->oap);
9493 	nv_diffgetput(FALSE, cap->opcount);
9494     }
9495     else
9496 #endif
9497     if (VIsual_active)  /* switch start and end of visual */
9498 	v_swap_corners(cap->cmdchar);
9499     else
9500 	n_opencmd(cap);
9501 }
9502 
9503 #ifdef FEAT_SNIFF
9504     static void
9505 nv_sniff(cap)
9506     cmdarg_T	*cap UNUSED;
9507 {
9508     ProcessSniffRequests();
9509 }
9510 #endif
9511 
9512 #ifdef FEAT_NETBEANS_INTG
9513     static void
9514 nv_nbcmd(cap)
9515     cmdarg_T	*cap;
9516 {
9517     netbeans_keycommand(cap->nchar);
9518 }
9519 #endif
9520 
9521 #ifdef FEAT_DND
9522     static void
9523 nv_drop(cap)
9524     cmdarg_T	*cap UNUSED;
9525 {
9526     do_put('~', BACKWARD, 1L, PUT_CURSEND);
9527 }
9528 #endif
9529 
9530 #ifdef FEAT_AUTOCMD
9531 /*
9532  * Trigger CursorHold event.
9533  * When waiting for a character for 'updatetime' K_CURSORHOLD is put in the
9534  * input buffer.  "did_cursorhold" is set to avoid retriggering.
9535  */
9536     static void
9537 nv_cursorhold(cap)
9538     cmdarg_T	*cap;
9539 {
9540     apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
9541     did_cursorhold = TRUE;
9542     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
9543 }
9544 #endif
9545