xref: /vim-8.2.3635/src/normal.c (revision bfd8fc05)
1 /* vi:set ts=8 sts=4 sw=4:
2  *
3  * VIM - Vi IMproved	by Bram Moolenaar
4  *
5  * Do ":help uganda"  in Vim to read copying and usage conditions.
6  * Do ":help credits" in Vim to see a list of people who contributed.
7  * See README.txt for an overview of the Vim source code.
8  */
9 /*
10  * normal.c:	Contains the main routine for processing characters in command
11  *		mode.  Communicates closely with the code in ops.c to handle
12  *		the operators.
13  */
14 
15 #include "vim.h"
16 
17 #ifdef FEAT_VISUAL
18 /*
19  * The Visual area is remembered for reselection.
20  */
21 static int	resel_VIsual_mode = NUL;	/* 'v', 'V', or Ctrl-V */
22 static linenr_T	resel_VIsual_line_count;	/* number of lines */
23 static colnr_T	resel_VIsual_col;		/* nr of cols or end col */
24 
25 static int	restart_VIsual_select = 0;
26 #endif
27 
28 static int
29 # ifdef __BORLANDC__
30 _RTLENTRYF
31 # endif
32 		nv_compare __ARGS((const void *s1, const void *s2));
33 static int	find_command __ARGS((int cmdchar));
34 static void	op_colon __ARGS((oparg_T *oap));
35 #if defined(FEAT_MOUSE) && defined(FEAT_VISUAL)
36 static void	find_start_of_word __ARGS((pos_T *));
37 static void	find_end_of_word __ARGS((pos_T *));
38 static int	get_mouse_class __ARGS((char_u *p));
39 #endif
40 static void	prep_redo_cmd __ARGS((cmdarg_T *cap));
41 static void	prep_redo __ARGS((int regname, long, int, int, int, int, int));
42 static int	checkclearop __ARGS((oparg_T *oap));
43 static int	checkclearopq __ARGS((oparg_T *oap));
44 static void	clearop __ARGS((oparg_T *oap));
45 static void	clearopbeep __ARGS((oparg_T *oap));
46 #ifdef FEAT_VISUAL
47 static void	unshift_special __ARGS((cmdarg_T *cap));
48 #endif
49 #ifdef FEAT_CMDL_INFO
50 static void	del_from_showcmd __ARGS((int));
51 #endif
52 
53 /*
54  * nv_*(): functions called to handle Normal and Visual mode commands.
55  * n_*(): functions called to handle Normal mode commands.
56  * v_*(): functions called to handle Visual mode commands.
57  */
58 static void	nv_ignore __ARGS((cmdarg_T *cap));
59 static void	nv_error __ARGS((cmdarg_T *cap));
60 static void	nv_help __ARGS((cmdarg_T *cap));
61 static void	nv_addsub __ARGS((cmdarg_T *cap));
62 static void	nv_page __ARGS((cmdarg_T *cap));
63 static void	nv_gd __ARGS((oparg_T *oap, int nchar, int thisblock));
64 static int	nv_screengo __ARGS((oparg_T *oap, int dir, long dist));
65 #ifdef FEAT_MOUSE
66 static void	nv_mousescroll __ARGS((cmdarg_T *cap));
67 static void	nv_mouse __ARGS((cmdarg_T *cap));
68 #endif
69 static void	nv_scroll_line __ARGS((cmdarg_T *cap));
70 static void	nv_zet __ARGS((cmdarg_T *cap));
71 #ifdef FEAT_GUI
72 static void	nv_ver_scrollbar __ARGS((cmdarg_T *cap));
73 static void	nv_hor_scrollbar __ARGS((cmdarg_T *cap));
74 #endif
75 static void	nv_exmode __ARGS((cmdarg_T *cap));
76 static void	nv_colon __ARGS((cmdarg_T *cap));
77 static void	nv_ctrlg __ARGS((cmdarg_T *cap));
78 static void	nv_ctrlh __ARGS((cmdarg_T *cap));
79 static void	nv_clear __ARGS((cmdarg_T *cap));
80 static void	nv_ctrlo __ARGS((cmdarg_T *cap));
81 static void	nv_hat __ARGS((cmdarg_T *cap));
82 static void	nv_Zet __ARGS((cmdarg_T *cap));
83 static void	nv_ident __ARGS((cmdarg_T *cap));
84 static void	nv_tagpop __ARGS((cmdarg_T *cap));
85 static void	nv_scroll __ARGS((cmdarg_T *cap));
86 static void	nv_right __ARGS((cmdarg_T *cap));
87 static void	nv_left __ARGS((cmdarg_T *cap));
88 static void	nv_up __ARGS((cmdarg_T *cap));
89 static void	nv_down __ARGS((cmdarg_T *cap));
90 #ifdef FEAT_SEARCHPATH
91 static void	nv_gotofile __ARGS((cmdarg_T *cap));
92 #endif
93 static void	nv_end __ARGS((cmdarg_T *cap));
94 static void	nv_dollar __ARGS((cmdarg_T *cap));
95 static void	nv_search __ARGS((cmdarg_T *cap));
96 static void	nv_next __ARGS((cmdarg_T *cap));
97 static void	normal_search __ARGS((cmdarg_T *cap, int dir, char_u *pat, int opt));
98 static void	nv_csearch __ARGS((cmdarg_T *cap));
99 static void	nv_brackets __ARGS((cmdarg_T *cap));
100 static void	nv_percent __ARGS((cmdarg_T *cap));
101 static void	nv_brace __ARGS((cmdarg_T *cap));
102 static void	nv_mark __ARGS((cmdarg_T *cap));
103 static void	nv_findpar __ARGS((cmdarg_T *cap));
104 static void	nv_undo __ARGS((cmdarg_T *cap));
105 static void	nv_kundo __ARGS((cmdarg_T *cap));
106 static void	nv_Replace __ARGS((cmdarg_T *cap));
107 #ifdef FEAT_VREPLACE
108 static void	nv_vreplace __ARGS((cmdarg_T *cap));
109 #endif
110 #ifdef FEAT_VISUAL
111 static void	v_swap_corners __ARGS((int cmdchar));
112 #endif
113 static void	nv_replace __ARGS((cmdarg_T *cap));
114 static void	n_swapchar __ARGS((cmdarg_T *cap));
115 static void	nv_cursormark __ARGS((cmdarg_T *cap, int flag, pos_T *pos));
116 #ifdef FEAT_VISUAL
117 static void	v_visop __ARGS((cmdarg_T *cap));
118 #endif
119 static void	nv_subst __ARGS((cmdarg_T *cap));
120 static void	nv_abbrev __ARGS((cmdarg_T *cap));
121 static void	nv_optrans __ARGS((cmdarg_T *cap));
122 static void	nv_gomark __ARGS((cmdarg_T *cap));
123 static void	nv_pcmark __ARGS((cmdarg_T *cap));
124 static void	nv_regname __ARGS((cmdarg_T *cap));
125 #ifdef FEAT_VISUAL
126 static void	nv_visual __ARGS((cmdarg_T *cap));
127 static void	n_start_visual_mode __ARGS((int c));
128 #endif
129 static void	nv_window __ARGS((cmdarg_T *cap));
130 static void	nv_suspend __ARGS((cmdarg_T *cap));
131 static void	nv_g_cmd __ARGS((cmdarg_T *cap));
132 static void	n_opencmd __ARGS((cmdarg_T *cap));
133 static void	nv_dot __ARGS((cmdarg_T *cap));
134 static void	nv_redo __ARGS((cmdarg_T *cap));
135 static void	nv_Undo __ARGS((cmdarg_T *cap));
136 static void	nv_tilde __ARGS((cmdarg_T *cap));
137 static void	nv_operator __ARGS((cmdarg_T *cap));
138 static void	nv_lineop __ARGS((cmdarg_T *cap));
139 static void	nv_home __ARGS((cmdarg_T *cap));
140 static void	nv_pipe __ARGS((cmdarg_T *cap));
141 static void	nv_bck_word __ARGS((cmdarg_T *cap));
142 static void	nv_wordcmd __ARGS((cmdarg_T *cap));
143 static void	nv_beginline __ARGS((cmdarg_T *cap));
144 #ifdef FEAT_VISUAL
145 static void	adjust_for_sel __ARGS((cmdarg_T *cap));
146 static int	unadjust_for_sel __ARGS((void));
147 static void	nv_select __ARGS((cmdarg_T *cap));
148 #endif
149 static void	nv_goto __ARGS((cmdarg_T *cap));
150 static void	nv_normal __ARGS((cmdarg_T *cap));
151 static void	nv_esc __ARGS((cmdarg_T *oap));
152 static void	nv_edit __ARGS((cmdarg_T *cap));
153 static void	invoke_edit __ARGS((cmdarg_T *cap, int repl, int cmd, int startln));
154 #ifdef FEAT_TEXTOBJ
155 static void	nv_object __ARGS((cmdarg_T *cap));
156 #endif
157 static void	nv_record __ARGS((cmdarg_T *cap));
158 static void	nv_at __ARGS((cmdarg_T *cap));
159 static void	nv_halfpage __ARGS((cmdarg_T *cap));
160 static void	nv_join __ARGS((cmdarg_T *cap));
161 static void	nv_put __ARGS((cmdarg_T *cap));
162 static void	nv_open __ARGS((cmdarg_T *cap));
163 #ifdef FEAT_SNIFF
164 static void	nv_sniff __ARGS((cmdarg_T *cap));
165 #endif
166 #ifdef FEAT_NETBEANS_INTG
167 static void	nv_nbcmd __ARGS((cmdarg_T *cap));
168 #endif
169 #ifdef FEAT_DND
170 static void	nv_drop __ARGS((cmdarg_T *cap));
171 #endif
172 #ifdef FEAT_AUTOCMD
173 static void	nv_cursorhold __ARGS((cmdarg_T *cap));
174 #endif
175 
176 /*
177  * Function to be called for a Normal or Visual mode command.
178  * The argument is a cmdarg_T.
179  */
180 typedef void (*nv_func_T) __ARGS((cmdarg_T *cap));
181 
182 /* Values for cmd_flags. */
183 #define NV_NCH	    0x01	  /* may need to get a second char */
184 #define NV_NCH_NOP  (0x02|NV_NCH) /* get second char when no operator pending */
185 #define NV_NCH_ALW  (0x04|NV_NCH) /* always get a second char */
186 #define NV_LANG	    0x08	/* second char needs language adjustment */
187 
188 #define NV_SS	    0x10	/* may start selection */
189 #define NV_SSS	    0x20	/* may start selection with shift modifier */
190 #define NV_STS	    0x40	/* may stop selection without shift modif. */
191 #define NV_RL	    0x80	/* 'rightleft' modifies command */
192 #define NV_KEEPREG  0x100	/* don't clear regname */
193 #define NV_NCW	    0x200	/* not allowed in command-line window */
194 
195 /*
196  * Generally speaking, every Normal mode command should either clear any
197  * pending operator (with *clearop*()), or set the motion type variable
198  * oap->motion_type.
199  *
200  * When a cursor motion command is made, it is marked as being a character or
201  * line oriented motion.  Then, if an operator is in effect, the operation
202  * becomes character or line oriented accordingly.
203  */
204 
205 /*
206  * This table contains one entry for every Normal or Visual mode command.
207  * The order doesn't matter, init_normal_cmds() will create a sorted index.
208  * It is faster when all keys from zero to '~' are present.
209  */
210 static const struct nv_cmd
211 {
212     int		cmd_char;	/* (first) command character */
213     nv_func_T   cmd_func;	/* function for this command */
214     short_u	cmd_flags;	/* NV_ flags */
215     short	cmd_arg;	/* value for ca.arg */
216 } nv_cmds[] =
217 {
218     {NUL,	nv_error,	0,			0},
219     {Ctrl_A,	nv_addsub,	0,			0},
220     {Ctrl_B,	nv_page,	NV_STS,			BACKWARD},
221     {Ctrl_C,	nv_esc,		0,			TRUE},
222     {Ctrl_D,	nv_halfpage,	0,			0},
223     {Ctrl_E,	nv_scroll_line,	0,			TRUE},
224     {Ctrl_F,	nv_page,	NV_STS,			FORWARD},
225     {Ctrl_G,	nv_ctrlg,	0,			0},
226     {Ctrl_H,	nv_ctrlh,	0,			0},
227     {Ctrl_I,	nv_pcmark,	0,			0},
228     {NL,	nv_down,	0,			FALSE},
229     {Ctrl_K,	nv_error,	0,			0},
230     {Ctrl_L,	nv_clear,	0,			0},
231     {Ctrl_M,	nv_down,	0,			TRUE},
232     {Ctrl_N,	nv_down,	NV_STS,			FALSE},
233     {Ctrl_O,	nv_ctrlo,	0,			0},
234     {Ctrl_P,	nv_up,		NV_STS,			FALSE},
235 #ifdef FEAT_VISUAL
236     {Ctrl_Q,	nv_visual,	0,			FALSE},
237 #else
238     {Ctrl_Q,	nv_ignore,	0,			0},
239 #endif
240     {Ctrl_R,	nv_redo,	0,			0},
241     {Ctrl_S,	nv_ignore,	0,			0},
242     {Ctrl_T,	nv_tagpop,	NV_NCW,			0},
243     {Ctrl_U,	nv_halfpage,	0,			0},
244 #ifdef FEAT_VISUAL
245     {Ctrl_V,	nv_visual,	0,			FALSE},
246     {'V',	nv_visual,	0,			FALSE},
247     {'v',	nv_visual,	0,			FALSE},
248 #else
249     {Ctrl_V,	nv_error,	0,			0},
250     {'V',	nv_error,	0,			0},
251     {'v',	nv_error,	0,			0},
252 #endif
253     {Ctrl_W,	nv_window,	0,			0},
254     {Ctrl_X,	nv_addsub,	0,			0},
255     {Ctrl_Y,	nv_scroll_line,	0,			FALSE},
256     {Ctrl_Z,	nv_suspend,	0,			0},
257     {ESC,	nv_esc,		0,			FALSE},
258     {Ctrl_BSL,	nv_normal,	NV_NCH_ALW,		0},
259     {Ctrl_RSB,	nv_ident,	NV_NCW,			0},
260     {Ctrl_HAT,	nv_hat,		NV_NCW,			0},
261     {Ctrl__,	nv_error,	0,			0},
262     {' ',	nv_right,	0,			0},
263     {'!',	nv_operator,	0,			0},
264     {'"',	nv_regname,	NV_NCH_NOP|NV_KEEPREG,	0},
265     {'#',	nv_ident,	0,			0},
266     {'$',	nv_dollar,	0,			0},
267     {'%',	nv_percent,	0,			0},
268     {'&',	nv_optrans,	0,			0},
269     {'\'',	nv_gomark,	NV_NCH_ALW,		TRUE},
270     {'(',	nv_brace,	0,			BACKWARD},
271     {')',	nv_brace,	0,			FORWARD},
272     {'*',	nv_ident,	0,			0},
273     {'+',	nv_down,	0,			TRUE},
274     {',',	nv_csearch,	0,			TRUE},
275     {'-',	nv_up,		0,			TRUE},
276     {'.',	nv_dot,		NV_KEEPREG,		0},
277     {'/',	nv_search,	0,			FALSE},
278     {'0',	nv_beginline,	0,			0},
279     {'1',	nv_ignore,	0,			0},
280     {'2',	nv_ignore,	0,			0},
281     {'3',	nv_ignore,	0,			0},
282     {'4',	nv_ignore,	0,			0},
283     {'5',	nv_ignore,	0,			0},
284     {'6',	nv_ignore,	0,			0},
285     {'7',	nv_ignore,	0,			0},
286     {'8',	nv_ignore,	0,			0},
287     {'9',	nv_ignore,	0,			0},
288     {':',	nv_colon,	0,			0},
289     {';',	nv_csearch,	0,			FALSE},
290     {'<',	nv_operator,	NV_RL,			0},
291     {'=',	nv_operator,	0,			0},
292     {'>',	nv_operator,	NV_RL,			0},
293     {'?',	nv_search,	0,			FALSE},
294     {'@',	nv_at,		NV_NCH_NOP,		FALSE},
295     {'A',	nv_edit,	0,			0},
296     {'B',	nv_bck_word,	0,			1},
297     {'C',	nv_abbrev,	NV_KEEPREG,		0},
298     {'D',	nv_abbrev,	NV_KEEPREG,		0},
299     {'E',	nv_wordcmd,	0,			TRUE},
300     {'F',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
301     {'G',	nv_goto,	0,			TRUE},
302     {'H',	nv_scroll,	0,			0},
303     {'I',	nv_edit,	0,			0},
304     {'J',	nv_join,	0,			0},
305     {'K',	nv_ident,	0,			0},
306     {'L',	nv_scroll,	0,			0},
307     {'M',	nv_scroll,	0,			0},
308     {'N',	nv_next,	0,			SEARCH_REV},
309     {'O',	nv_open,	0,			0},
310     {'P',	nv_put,		0,			0},
311     {'Q',	nv_exmode,	NV_NCW,			0},
312     {'R',	nv_Replace,	0,			FALSE},
313     {'S',	nv_subst,	NV_KEEPREG,		0},
314     {'T',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
315     {'U',	nv_Undo,	0,			0},
316     {'W',	nv_wordcmd,	0,			TRUE},
317     {'X',	nv_abbrev,	NV_KEEPREG,		0},
318     {'Y',	nv_abbrev,	NV_KEEPREG,		0},
319     {'Z',	nv_Zet,		NV_NCH_NOP|NV_NCW,	0},
320     {'[',	nv_brackets,	NV_NCH_ALW,		BACKWARD},
321     {'\\',	nv_error,	0,			0},
322     {']',	nv_brackets,	NV_NCH_ALW,		FORWARD},
323     {'^',	nv_beginline,	0,			BL_WHITE | BL_FIX},
324     {'_',	nv_lineop,	0,			0},
325     {'`',	nv_gomark,	NV_NCH_ALW,		FALSE},
326     {'a',	nv_edit,	NV_NCH,			0},
327     {'b',	nv_bck_word,	0,			0},
328     {'c',	nv_operator,	0,			0},
329     {'d',	nv_operator,	0,			0},
330     {'e',	nv_wordcmd,	0,			FALSE},
331     {'f',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
332     {'g',	nv_g_cmd,	NV_NCH_ALW,		FALSE},
333     {'h',	nv_left,	NV_RL,			0},
334     {'i',	nv_edit,	NV_NCH,			0},
335     {'j',	nv_down,	0,			FALSE},
336     {'k',	nv_up,		0,			FALSE},
337     {'l',	nv_right,	NV_RL,			0},
338     {'m',	nv_mark,	NV_NCH_NOP,		0},
339     {'n',	nv_next,	0,			0},
340     {'o',	nv_open,	0,			0},
341     {'p',	nv_put,		0,			0},
342     {'q',	nv_record,	NV_NCH,			0},
343     {'r',	nv_replace,	NV_NCH_NOP|NV_LANG,	0},
344     {'s',	nv_subst,	NV_KEEPREG,		0},
345     {'t',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
346     {'u',	nv_undo,	0,			0},
347     {'w',	nv_wordcmd,	0,			FALSE},
348     {'x',	nv_abbrev,	NV_KEEPREG,		0},
349     {'y',	nv_operator,	0,			0},
350     {'z',	nv_zet,		NV_NCH_ALW,		0},
351     {'{',	nv_findpar,	0,			BACKWARD},
352     {'|',	nv_pipe,	0,			0},
353     {'}',	nv_findpar,	0,			FORWARD},
354     {'~',	nv_tilde,	0,			0},
355 
356     /* pound sign */
357     {POUND,	nv_ident,	0,			0},
358 #ifdef FEAT_MOUSE
359     {K_MOUSEUP, nv_mousescroll,	0,			TRUE},
360     {K_MOUSEDOWN, nv_mousescroll, 0,			FALSE},
361     {K_LEFTMOUSE, nv_mouse,	0,			0},
362     {K_LEFTMOUSE_NM, nv_mouse,	0,			0},
363     {K_LEFTDRAG, nv_mouse,	0,			0},
364     {K_LEFTRELEASE, nv_mouse,	0,			0},
365     {K_LEFTRELEASE_NM, nv_mouse, 0,			0},
366     {K_MIDDLEMOUSE, nv_mouse,	0,			0},
367     {K_MIDDLEDRAG, nv_mouse,	0,			0},
368     {K_MIDDLERELEASE, nv_mouse,	0,			0},
369     {K_RIGHTMOUSE, nv_mouse,	0,			0},
370     {K_RIGHTDRAG, nv_mouse,	0,			0},
371     {K_RIGHTRELEASE, nv_mouse,	0,			0},
372     {K_X1MOUSE, nv_mouse,	0,			0},
373     {K_X1DRAG, nv_mouse,	0,			0},
374     {K_X1RELEASE, nv_mouse,	0,			0},
375     {K_X2MOUSE, nv_mouse,	0,			0},
376     {K_X2DRAG, nv_mouse,	0,			0},
377     {K_X2RELEASE, nv_mouse,	0,			0},
378 #endif
379     {K_IGNORE,	nv_ignore,	0,			0},
380     {K_INS,	nv_edit,	0,			0},
381     {K_KINS,	nv_edit,	0,			0},
382     {K_BS,	nv_ctrlh,	0,			0},
383     {K_UP,	nv_up,		NV_SSS|NV_STS,		FALSE},
384     {K_S_UP,	nv_page,	NV_SS,			BACKWARD},
385     {K_DOWN,	nv_down,	NV_SSS|NV_STS,		FALSE},
386     {K_S_DOWN,	nv_page,	NV_SS,			FORWARD},
387     {K_LEFT,	nv_left,	NV_SSS|NV_STS|NV_RL,	0},
388     {K_S_LEFT,	nv_bck_word,	NV_SS|NV_RL,		0},
389     {K_C_LEFT,	nv_bck_word,	NV_SSS|NV_RL|NV_STS,	1},
390     {K_RIGHT,	nv_right,	NV_SSS|NV_STS|NV_RL,	0},
391     {K_S_RIGHT,	nv_wordcmd,	NV_SS|NV_RL,		FALSE},
392     {K_C_RIGHT,	nv_wordcmd,	NV_SSS|NV_RL|NV_STS,	TRUE},
393     {K_PAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
394     {K_KPAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
395     {K_PAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
396     {K_KPAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
397     {K_END,	nv_end,		NV_SSS|NV_STS,		FALSE},
398     {K_KEND,	nv_end,		NV_SSS|NV_STS,		FALSE},
399     {K_S_END,	nv_end,		NV_SS,			FALSE},
400     {K_C_END,	nv_end,		NV_SSS|NV_STS,		TRUE},
401     {K_HOME,	nv_home,	NV_SSS|NV_STS,		0},
402     {K_KHOME,	nv_home,	NV_SSS|NV_STS,		0},
403     {K_S_HOME,	nv_home,	NV_SS,			0},
404     {K_C_HOME,	nv_goto,	NV_SSS|NV_STS,		FALSE},
405     {K_DEL,	nv_abbrev,	0,			0},
406     {K_KDEL,	nv_abbrev,	0,			0},
407     {K_UNDO,	nv_kundo,	0,			0},
408     {K_HELP,	nv_help,	NV_NCW,			0},
409     {K_F1,	nv_help,	NV_NCW,			0},
410     {K_XF1,	nv_help,	NV_NCW,			0},
411 #ifdef FEAT_VISUAL
412     {K_SELECT,	nv_select,	0,			0},
413 #endif
414 #ifdef FEAT_GUI
415     {K_VER_SCROLLBAR, nv_ver_scrollbar, 0,		0},
416     {K_HOR_SCROLLBAR, nv_hor_scrollbar, 0,		0},
417 #endif
418 #ifdef FEAT_FKMAP
419     {K_F8,	farsi_fkey,	0,			0},
420     {K_F9,	farsi_fkey,	0,			0},
421 #endif
422 #ifdef FEAT_SNIFF
423     {K_SNIFF,	nv_sniff,	0,			0},
424 #endif
425 #ifdef FEAT_NETBEANS_INTG
426     {K_F21,	nv_nbcmd,	NV_NCH_ALW,		0},
427 #endif
428 #ifdef FEAT_DND
429     {K_DROP,	nv_drop,	NV_STS,			0},
430 #endif
431 #ifdef FEAT_AUTOCMD
432     {K_CURSORHOLD, nv_cursorhold, 0,			0},
433 #endif
434 };
435 
436 /* Number of commands in nv_cmds[]. */
437 #define NV_CMDS_SIZE (sizeof(nv_cmds) / sizeof(struct nv_cmd))
438 
439 /* Sorted index of commands in nv_cmds[]. */
440 static short nv_cmd_idx[NV_CMDS_SIZE];
441 
442 /* The highest index for which
443  * nv_cmds[idx].cmd_char == nv_cmd_idx[nv_cmds[idx].cmd_char] */
444 static int nv_max_linear;
445 
446 /*
447  * Compare functions for qsort() below, that checks the command character
448  * through the index in nv_cmd_idx[].
449  */
450     static int
451 #ifdef __BORLANDC__
452 _RTLENTRYF
453 #endif
454 nv_compare(s1, s2)
455     const void	*s1;
456     const void	*s2;
457 {
458     int		c1, c2;
459 
460     /* The commands are sorted on absolute value. */
461     c1 = nv_cmds[*(const short *)s1].cmd_char;
462     c2 = nv_cmds[*(const short *)s2].cmd_char;
463     if (c1 < 0)
464 	c1 = -c1;
465     if (c2 < 0)
466 	c2 = -c2;
467     return c1 - c2;
468 }
469 
470 /*
471  * Initialize the nv_cmd_idx[] table.
472  */
473     void
474 init_normal_cmds()
475 {
476     int		i;
477 
478     /* Fill the index table with a one to one relation. */
479     for (i = 0; i < NV_CMDS_SIZE; ++i)
480 	nv_cmd_idx[i] = i;
481 
482     /* Sort the commands by the command character.  */
483     qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);
484 
485     /* Find the first entry that can't be indexed by the command character. */
486     for (i = 0; i < NV_CMDS_SIZE; ++i)
487 	if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
488 	    break;
489     nv_max_linear = i - 1;
490 }
491 
492 /*
493  * Search for a command in the commands table.
494  * Returns -1 for invalid command.
495  */
496     static int
497 find_command(cmdchar)
498     int		cmdchar;
499 {
500     int		i;
501     int		idx;
502     int		top, bot;
503     int		c;
504 
505 #ifdef FEAT_MBYTE
506     /* A multi-byte character is never a command. */
507     if (cmdchar >= 0x100)
508 	return -1;
509 #endif
510 
511     /* We use the absolute value of the character.  Special keys have a
512      * negative value, but are sorted on their absolute value. */
513     if (cmdchar < 0)
514 	cmdchar = -cmdchar;
515 
516     /* If the character is in the first part: The character is the index into
517      * nv_cmd_idx[]. */
518     if (cmdchar <= nv_max_linear)
519 	return nv_cmd_idx[cmdchar];
520 
521     /* Perform a binary search. */
522     bot = nv_max_linear + 1;
523     top = NV_CMDS_SIZE - 1;
524     idx = -1;
525     while (bot <= top)
526     {
527 	i = (top + bot) / 2;
528 	c = nv_cmds[nv_cmd_idx[i]].cmd_char;
529 	if (c < 0)
530 	    c = -c;
531 	if (cmdchar == c)
532 	{
533 	    idx = nv_cmd_idx[i];
534 	    break;
535 	}
536 	if (cmdchar > c)
537 	    bot = i + 1;
538 	else
539 	    top = i - 1;
540     }
541     return idx;
542 }
543 
544 /*
545  * Execute a command in Normal mode.
546  */
547 /*ARGSUSED*/
548     void
549 normal_cmd(oap, toplevel)
550     oparg_T	*oap;
551     int		toplevel;		/* TRUE when called from main() */
552 {
553     static long	opcount = 0;		/* ca.opcount saved here */
554     cmdarg_T	ca;			/* command arguments */
555     int		c;
556     int		ctrl_w = FALSE;		/* got CTRL-W command */
557     int		old_col = curwin->w_curswant;
558 #ifdef FEAT_CMDL_INFO
559     int		need_flushbuf;		/* need to call out_flush() */
560 #endif
561 #ifdef FEAT_VISUAL
562     pos_T	old_pos;		/* cursor position before command */
563     int		mapped_len;
564 #endif
565     static int	old_mapped_len = 0;
566     int		idx;
567 
568     vim_memset(&ca, 0, sizeof(ca));	/* also resets ca.retval */
569     ca.oap = oap;
570     ca.opcount = opcount;
571 
572 #ifdef FEAT_SNIFF
573     want_sniff_request = sniff_connected;
574 #endif
575 
576     /*
577      * If there is an operator pending, then the command we take this time
578      * will terminate it. Finish_op tells us to finish the operation before
579      * returning this time (unless the operation was cancelled).
580      */
581 #ifdef CURSOR_SHAPE
582     c = finish_op;
583 #endif
584     finish_op = (oap->op_type != OP_NOP);
585 #ifdef CURSOR_SHAPE
586     if (finish_op != c)
587     {
588 	ui_cursor_shape();		/* may show different cursor shape */
589 # ifdef FEAT_MOUSESHAPE
590 	update_mouseshape(-1);
591 # endif
592     }
593 #endif
594 
595     if (!finish_op && !oap->regname)
596 	ca.opcount = 0;
597 
598 #ifdef FEAT_VISUAL
599     mapped_len = typebuf_maplen();
600 #endif
601 
602     State = NORMAL_BUSY;
603 #ifdef USE_ON_FLY_SCROLL
604     dont_scroll = FALSE;	/* allow scrolling here */
605 #endif
606 
607     /*
608      * Get the command character from the user.
609      */
610     c = safe_vgetc();
611 
612 #ifdef FEAT_LANGMAP
613     LANGMAP_ADJUST(c, TRUE);
614 #endif
615 
616     /*
617      * If a mapping was started in Visual or Select mode, remember the length
618      * of the mapping.  This is used below to not return to Insert mode for as
619      * long as the mapping is being executed.
620      */
621     if (restart_edit == 0)
622 	old_mapped_len = 0;
623     else if (old_mapped_len
624 #ifdef FEAT_VISUAL
625 	    || (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0)
626 #endif
627 	    )
628 	old_mapped_len = typebuf_maplen();
629 
630     if (c == NUL)
631 	c = K_ZERO;
632 
633 #ifdef FEAT_VISUAL
634     /*
635      * In Select mode, typed text replaces the selection.
636      */
637     if (VIsual_active
638 	    && VIsual_select
639 	    && (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
640     {
641 # ifdef FEAT_MBYTE
642 	char_u	    buf[MB_MAXBYTES + 1];
643 
644 	buf[(*mb_char2bytes)(c, buf)] = NUL;
645 # else
646 	char_u	    buf[2];
647 
648 	buf[0] = c;
649 	buf[1] = NUL;
650 # endif
651 	/* Fake a "c"hange command.  When "restart_edit" is set (e.g., because
652 	 * 'insertmode' is set) fake a "d"elete command, Insert mode will
653 	 * restart automatically.
654 	 * Insert the typed character in the typeahead buffer, so that it will
655 	 * be mapped in Insert mode.  Required for ":lmap" to work.  May cause
656 	 * mapping a character from ":vnoremap"... */
657 	(void)ins_typebuf(buf, REMAP_YES, 0, !KeyTyped, FALSE);
658 	if (restart_edit != 0)
659 	    c = 'd';
660 	else
661 	    c = 'c';
662     }
663 #endif
664 
665 #ifdef FEAT_CMDL_INFO
666     need_flushbuf = add_to_showcmd(c);
667 #endif
668 
669 getcount:
670 #ifdef FEAT_VISUAL
671     if (!(VIsual_active && VIsual_select))
672 #endif
673     {
674 	/*
675 	 * Handle a count before a command and compute ca.count0.
676 	 * Note that '0' is a command and not the start of a count, but it's
677 	 * part of a count after other digits.
678 	 */
679 	while (    (c >= '1' && c <= '9')
680 		|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
681 	{
682 	    if (c == K_DEL || c == K_KDEL)
683 	    {
684 		ca.count0 /= 10;
685 #ifdef FEAT_CMDL_INFO
686 		del_from_showcmd(4);	/* delete the digit and ~@% */
687 #endif
688 	    }
689 	    else
690 		ca.count0 = ca.count0 * 10 + (c - '0');
691 	    if (ca.count0 < 0)	    /* got too large! */
692 		ca.count0 = 999999999L;
693 	    if (ctrl_w)
694 	    {
695 		++no_mapping;
696 		++allow_keys;		/* no mapping for nchar, but keys */
697 	    }
698 	    ++no_zero_mapping;		/* don't map zero here */
699 	    c = safe_vgetc();
700 #ifdef FEAT_LANGMAP
701 	    LANGMAP_ADJUST(c, TRUE);
702 #endif
703 	    --no_zero_mapping;
704 	    if (ctrl_w)
705 	    {
706 		--no_mapping;
707 		--allow_keys;
708 	    }
709 #ifdef FEAT_CMDL_INFO
710 	    need_flushbuf |= add_to_showcmd(c);
711 #endif
712 	}
713 
714 	/*
715 	 * If we got CTRL-W there may be a/another count
716 	 */
717 	if (c == Ctrl_W && !ctrl_w && oap->op_type == OP_NOP)
718 	{
719 	    ctrl_w = TRUE;
720 	    ca.opcount = ca.count0;	/* remember first count */
721 	    ca.count0 = 0;
722 	    ++no_mapping;
723 	    ++allow_keys;		/* no mapping for nchar, but keys */
724 	    c = safe_vgetc();		/* get next character */
725 #ifdef FEAT_LANGMAP
726 	    LANGMAP_ADJUST(c, TRUE);
727 #endif
728 	    --no_mapping;
729 	    --allow_keys;
730 #ifdef FEAT_CMDL_INFO
731 	    need_flushbuf |= add_to_showcmd(c);
732 #endif
733 	    goto getcount;		/* jump back */
734 	}
735     }
736 
737     /*
738      * If we're in the middle of an operator (including after entering a yank
739      * buffer with '"') AND we had a count before the operator, then that
740      * count overrides the current value of ca.count0.
741      * What this means effectively, is that commands like "3dw" get turned
742      * into "d3w" which makes things fall into place pretty neatly.
743      * If you give a count before AND after the operator, they are multiplied.
744      */
745     if (ca.opcount != 0)
746     {
747 	if (ca.count0)
748 	    ca.count0 *= ca.opcount;
749 	else
750 	    ca.count0 = ca.opcount;
751     }
752 
753     /*
754      * Always remember the count.  It will be set to zero (on the next call,
755      * above) when there is no pending operator.
756      * When called from main(), save the count for use by the "count" built-in
757      * variable.
758      */
759     ca.opcount = ca.count0;
760     ca.count1 = (ca.count0 == 0 ? 1 : ca.count0);
761 
762 #ifdef FEAT_EVAL
763     /*
764      * Only set v:count when called from main() and not a stuffed command.
765      */
766     if (toplevel && stuff_empty())
767 	set_vcount(ca.count0, ca.count1);
768 #endif
769 
770     /*
771      * Find the command character in the table of commands.
772      * For CTRL-W we already got nchar when looking for a count.
773      */
774     if (ctrl_w)
775     {
776 	ca.nchar = c;
777 	ca.cmdchar = Ctrl_W;
778     }
779     else
780 	ca.cmdchar = c;
781     idx = find_command(ca.cmdchar);
782     if (idx < 0)
783     {
784 	/* Not a known command: beep. */
785 	clearopbeep(oap);
786 	goto normal_end;
787     }
788 #ifdef FEAT_CMDWIN
789     if (cmdwin_type != 0 && (nv_cmds[idx].cmd_flags & NV_NCW))
790     {
791 	/* This command is not allowed in the cmdline window: beep. */
792 	clearopbeep(oap);
793 	EMSG(_(e_cmdwin));
794 	goto normal_end;
795     }
796 #endif
797 
798 #ifdef FEAT_VISUAL
799     /*
800      * In Visual/Select mode, a few keys are handled in a special way.
801      */
802     if (VIsual_active)
803     {
804 	/* when 'keymodel' contains "stopsel" may stop Select/Visual mode */
805 	if (km_stopsel
806 		&& (nv_cmds[idx].cmd_flags & NV_STS)
807 		&& !(mod_mask & MOD_MASK_SHIFT))
808 	{
809 	    end_visual_mode();
810 	    redraw_curbuf_later(INVERTED);
811 	}
812 
813 	/* Keys that work different when 'keymodel' contains "startsel" */
814 	if (km_startsel)
815 	{
816 	    if (nv_cmds[idx].cmd_flags & NV_SS)
817 	    {
818 		unshift_special(&ca);
819 		idx = find_command(ca.cmdchar);
820 	    }
821 	    else if ((nv_cmds[idx].cmd_flags & NV_SSS)
822 					       && (mod_mask & MOD_MASK_SHIFT))
823 	    {
824 		mod_mask &= ~MOD_MASK_SHIFT;
825 	    }
826 	}
827     }
828 #endif
829 
830 #ifdef FEAT_RIGHTLEFT
831     if (curwin->w_p_rl && KeyTyped && !KeyStuffed
832 					  && (nv_cmds[idx].cmd_flags & NV_RL))
833     {
834 	/* Invert horizontal movements and operations.  Only when typed by the
835 	 * user directly, not when the result of a mapping or "x" translated
836 	 * to "dl". */
837 	switch (ca.cmdchar)
838 	{
839 	    case 'l':	    ca.cmdchar = 'h'; break;
840 	    case K_RIGHT:   ca.cmdchar = K_LEFT; break;
841 	    case K_S_RIGHT: ca.cmdchar = K_S_LEFT; break;
842 	    case K_C_RIGHT: ca.cmdchar = K_C_LEFT; break;
843 	    case 'h':	    ca.cmdchar = 'l'; break;
844 	    case K_LEFT:    ca.cmdchar = K_RIGHT; break;
845 	    case K_S_LEFT:  ca.cmdchar = K_S_RIGHT; break;
846 	    case K_C_LEFT:  ca.cmdchar = K_C_RIGHT; break;
847 	    case '>':	    ca.cmdchar = '<'; break;
848 	    case '<':	    ca.cmdchar = '>'; break;
849 	}
850 	idx = find_command(ca.cmdchar);
851     }
852 #endif
853 
854     /*
855      * Get an additional character if we need one.
856      */
857     if ((nv_cmds[idx].cmd_flags & NV_NCH)
858 	    && (((nv_cmds[idx].cmd_flags & NV_NCH_NOP) == NV_NCH_NOP
859 		    && oap->op_type == OP_NOP)
860 		|| (nv_cmds[idx].cmd_flags & NV_NCH_ALW) == NV_NCH_ALW
861 		|| (ca.cmdchar == 'q'
862 		    && oap->op_type == OP_NOP
863 		    && !Recording
864 		    && !Exec_reg)
865 		|| ((ca.cmdchar == 'a' || ca.cmdchar == 'i')
866 		    && (oap->op_type != OP_NOP
867 #ifdef FEAT_VISUAL
868 			|| VIsual_active
869 #endif
870 		       ))))
871     {
872 	int	*cp;
873 	int	repl = FALSE;	/* get character for replace mode */
874 	int	lit = FALSE;	/* get extra character literally */
875 	int	langmap_active = FALSE;    /* using :lmap mappings */
876 	int	lang;		/* getting a text character */
877 #ifdef USE_IM_CONTROL
878 	int	save_smd;	/* saved value of p_smd */
879 #endif
880 
881 	++no_mapping;
882 	++allow_keys;		/* no mapping for nchar, but allow key codes */
883 	if (ca.cmdchar == 'g')
884 	{
885 	    /*
886 	     * For 'g' get the next character now, so that we can check for
887 	     * "gr", "g'" and "g`".
888 	     */
889 	    ca.nchar = safe_vgetc();
890 #ifdef FEAT_LANGMAP
891 	    LANGMAP_ADJUST(ca.nchar, TRUE);
892 #endif
893 #ifdef FEAT_CMDL_INFO
894 	    need_flushbuf |= add_to_showcmd(ca.nchar);
895 #endif
896 	    if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
897 						      || ca.nchar == Ctrl_BSL)
898 	    {
899 		cp = &ca.extra_char;	/* need to get a third character */
900 		if (ca.nchar != 'r')
901 		    lit = TRUE;			/* get it literally */
902 		else
903 		    repl = TRUE;		/* get it in replace mode */
904 	    }
905 	    else
906 		cp = NULL;		/* no third character needed */
907 	}
908 	else
909 	{
910 	    if (ca.cmdchar == 'r')		/* get it in replace mode */
911 		repl = TRUE;
912 	    cp = &ca.nchar;
913 	}
914 	lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));
915 
916 	/*
917 	 * Get a second or third character.
918 	 */
919 	if (cp != NULL)
920 	{
921 #ifdef CURSOR_SHAPE
922 	    if (repl)
923 	    {
924 		State = REPLACE;	/* pretend Replace mode */
925 		ui_cursor_shape();	/* show different cursor shape */
926 	    }
927 #endif
928 	    if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
929 	    {
930 		/* Allow mappings defined with ":lmap". */
931 		--no_mapping;
932 		--allow_keys;
933 		if (repl)
934 		    State = LREPLACE;
935 		else
936 		    State = LANGMAP;
937 		langmap_active = TRUE;
938 	    }
939 #ifdef USE_IM_CONTROL
940 	    save_smd = p_smd;
941 	    p_smd = FALSE;	/* Don't let the IM code show the mode here */
942 	    if (lang && curbuf->b_p_iminsert == B_IMODE_IM)
943 		im_set_active(TRUE);
944 #endif
945 
946 	    *cp = safe_vgetc();
947 
948 	    if (langmap_active)
949 	    {
950 		/* Undo the decrement done above */
951 		++no_mapping;
952 		++allow_keys;
953 		State = NORMAL_BUSY;
954 	    }
955 #ifdef USE_IM_CONTROL
956 	    if (lang)
957 	    {
958 		if (curbuf->b_p_iminsert != B_IMODE_LMAP)
959 		    im_save_status(&curbuf->b_p_iminsert);
960 		im_set_active(FALSE);
961 	    }
962 	    p_smd = save_smd;
963 #endif
964 #ifdef CURSOR_SHAPE
965 	    State = NORMAL_BUSY;
966 #endif
967 #ifdef FEAT_CMDL_INFO
968 	    need_flushbuf |= add_to_showcmd(*cp);
969 #endif
970 
971 	    if (!lit)
972 	    {
973 #ifdef FEAT_DIGRAPHS
974 		/* Typing CTRL-K gets a digraph. */
975 		if (*cp == Ctrl_K
976 			&& ((nv_cmds[idx].cmd_flags & NV_LANG)
977 			    || cp == &ca.extra_char)
978 			&& vim_strchr(p_cpo, CPO_DIGRAPH) == NULL)
979 		{
980 		    c = get_digraph(FALSE);
981 		    if (c > 0)
982 		    {
983 			*cp = c;
984 # ifdef FEAT_CMDL_INFO
985 			/* Guessing how to update showcmd here... */
986 			del_from_showcmd(3);
987 			need_flushbuf |= add_to_showcmd(*cp);
988 # endif
989 		    }
990 		}
991 #endif
992 
993 #ifdef FEAT_LANGMAP
994 		/* adjust chars > 127, except after "tTfFr" commands */
995 		LANGMAP_ADJUST(*cp, !lang);
996 #endif
997 #ifdef FEAT_RIGHTLEFT
998 		/* adjust Hebrew mapped char */
999 		if (p_hkmap && lang && KeyTyped)
1000 		    *cp = hkmap(*cp);
1001 # ifdef FEAT_FKMAP
1002 		/* adjust Farsi mapped char */
1003 		if (p_fkmap && lang && KeyTyped)
1004 		    *cp = fkmap(*cp);
1005 # endif
1006 #endif
1007 	    }
1008 
1009 	    /*
1010 	     * When the next character is CTRL-\ a following CTRL-N means the
1011 	     * command is aborted and we go to Normal mode.
1012 	     */
1013 	    if (cp == &ca.extra_char
1014 		    && ca.nchar == Ctrl_BSL
1015 		    && (ca.extra_char == Ctrl_N || ca.extra_char == Ctrl_G))
1016 	    {
1017 		ca.cmdchar = Ctrl_BSL;
1018 		ca.nchar = ca.extra_char;
1019 		idx = find_command(ca.cmdchar);
1020 	    }
1021 	    else if (*cp == Ctrl_BSL)
1022 	    {
1023 		long towait = (p_ttm >= 0 ? p_ttm : p_tm);
1024 
1025 		/* There is a busy wait here when typing "f<C-\>" and then
1026 		 * something different from CTRL-N.  Can't be avoided. */
1027 		while ((c = vpeekc()) <= 0 && towait > 0L)
1028 		{
1029 		    do_sleep(towait > 50L ? 50L : towait);
1030 		    towait -= 50L;
1031 		}
1032 		if (c > 0)
1033 		{
1034 		    c = safe_vgetc();
1035 		    if (c != Ctrl_N && c != Ctrl_G)
1036 			vungetc(c);
1037 		    else
1038 		    {
1039 			ca.cmdchar = Ctrl_BSL;
1040 			ca.nchar = c;
1041 			idx = find_command(ca.cmdchar);
1042 		    }
1043 		}
1044 	    }
1045 
1046 #ifdef FEAT_MBYTE
1047 	    /* When getting a text character and the next character is a
1048 	     * multi-byte character, it could be a composing character.
1049 	     * However, don't wait for it to arrive. */
1050 	    while (enc_utf8 && lang && (c = vpeekc()) > 0
1051 				 && (c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1))
1052 	    {
1053 		c = safe_vgetc();
1054 		if (!utf_iscomposing(c))
1055 		{
1056 		    vungetc(c);		/* it wasn't, put it back */
1057 		    break;
1058 		}
1059 		else if (ca.ncharC1 == 0)
1060 		    ca.ncharC1 = c;
1061 		else
1062 		    ca.ncharC2 = c;
1063 	    }
1064 #endif
1065 	}
1066 	--no_mapping;
1067 	--allow_keys;
1068     }
1069 
1070 #ifdef FEAT_CMDL_INFO
1071     /*
1072      * Flush the showcmd characters onto the screen so we can see them while
1073      * the command is being executed.  Only do this when the shown command was
1074      * actually displayed, otherwise this will slow down a lot when executing
1075      * mappings.
1076      */
1077     if (need_flushbuf)
1078 	out_flush();
1079 #endif
1080 #ifdef FEAT_AUTOCMD
1081     did_cursorhold = FALSE;
1082 #endif
1083 
1084     State = NORMAL;
1085 
1086     if (ca.nchar == ESC)
1087     {
1088 	clearop(oap);
1089 	if (restart_edit == 0 && goto_im())
1090 	    restart_edit = 'a';
1091 	goto normal_end;
1092     }
1093 
1094     if (ca.cmdchar != K_IGNORE)
1095     {
1096 	msg_didout = FALSE;    /* don't scroll screen up for normal command */
1097 	msg_col = 0;
1098     }
1099 
1100 #ifdef FEAT_VISUAL
1101     old_pos = curwin->w_cursor;		/* remember where cursor was */
1102 
1103     /* When 'keymodel' contains "startsel" some keys start Select/Visual
1104      * mode. */
1105     if (!VIsual_active && km_startsel)
1106     {
1107 	if (nv_cmds[idx].cmd_flags & NV_SS)
1108 	{
1109 	    start_selection();
1110 	    unshift_special(&ca);
1111 	    idx = find_command(ca.cmdchar);
1112 	}
1113 	else if ((nv_cmds[idx].cmd_flags & NV_SSS)
1114 					   && (mod_mask & MOD_MASK_SHIFT))
1115 	{
1116 	    start_selection();
1117 	    mod_mask &= ~MOD_MASK_SHIFT;
1118 	}
1119     }
1120 #endif
1121 
1122     /*
1123      * Execute the command!
1124      * Call the command function found in the commands table.
1125      */
1126     ca.arg = nv_cmds[idx].cmd_arg;
1127     (nv_cmds[idx].cmd_func)(&ca);
1128 
1129     /*
1130      * If we didn't start or finish an operator, reset oap->regname, unless we
1131      * need it later.
1132      */
1133     if (!finish_op
1134 	    && !oap->op_type
1135 	    && (idx < 0 || !(nv_cmds[idx].cmd_flags & NV_KEEPREG)))
1136     {
1137 	clearop(oap);
1138 #ifdef FEAT_EVAL
1139 	set_reg_var('"');
1140 #endif
1141     }
1142 
1143     /* get the length of mapped chars again after typing a count, second
1144      * character or "z333<cr>". */
1145     if (old_mapped_len > 0)
1146 	old_mapped_len = typebuf_maplen();
1147 
1148     /*
1149      * If an operation is pending, handle it...
1150      */
1151     do_pending_operator(&ca, old_col, FALSE);
1152 
1153     /*
1154      * Wait for a moment when a message is displayed that will be overwritten
1155      * by the mode message.
1156      * In Visual mode and with "^O" in Insert mode, a short message will be
1157      * overwritten by the mode message.  Wait a bit, until a key is hit.
1158      * In Visual mode, it's more important to keep the Visual area updated
1159      * than keeping a message (e.g. from a /pat search).
1160      * Only do this if the command was typed, not from a mapping.
1161      * Don't wait when emsg_silent is non-zero.
1162      * Also wait a bit after an error message, e.g. for "^O:".
1163      * Don't redraw the screen, it would remove the message.
1164      */
1165     if (       ((p_smd
1166 		    && (restart_edit != 0
1167 #ifdef FEAT_VISUAL
1168 			|| (VIsual_active
1169 			    && old_pos.lnum == curwin->w_cursor.lnum
1170 			    && old_pos.col == curwin->w_cursor.col)
1171 #endif
1172 		       )
1173 		    && (clear_cmdline
1174 			|| redraw_cmdline)
1175 		    && (msg_didout || (msg_didany && msg_scroll))
1176 		    && !msg_nowait
1177 		    && KeyTyped)
1178 		|| (restart_edit != 0
1179 #ifdef FEAT_VISUAL
1180 		    && !VIsual_active
1181 #endif
1182 		    && (msg_scroll
1183 			|| emsg_on_display)))
1184 	    && oap->regname == 0
1185 	    && !(ca.retval & CA_COMMAND_BUSY)
1186 	    && stuff_empty()
1187 	    && typebuf_typed()
1188 	    && emsg_silent == 0
1189 	    && !did_wait_return
1190 	    && oap->op_type == OP_NOP)
1191     {
1192 	int	save_State = State;
1193 
1194 	/* Draw the cursor with the right shape here */
1195 	if (restart_edit != 0)
1196 	    State = INSERT;
1197 
1198 	/* If need to redraw, and there is a "keep_msg", redraw before the
1199 	 * delay */
1200 	if (must_redraw && keep_msg != NULL && !emsg_on_display)
1201 	{
1202 	    char_u	*kmsg;
1203 
1204 	    kmsg = keep_msg;
1205 	    keep_msg = NULL;
1206 	    /* showmode() will clear keep_msg, but we want to use it anyway */
1207 	    update_screen(0);
1208 	    /* now reset it, otherwise it's put in the history again */
1209 	    keep_msg = kmsg;
1210 	    msg_attr(kmsg, keep_msg_attr);
1211 	    vim_free(kmsg);
1212 	}
1213 	setcursor();
1214 	cursor_on();
1215 	out_flush();
1216 	if (msg_scroll || emsg_on_display)
1217 	    ui_delay(1000L, TRUE);	/* wait at least one second */
1218 	ui_delay(3000L, FALSE);		/* wait up to three seconds */
1219 	State = save_State;
1220 
1221 	msg_scroll = FALSE;
1222 	emsg_on_display = FALSE;
1223     }
1224 
1225     /*
1226      * Finish up after executing a Normal mode command.
1227      */
1228 normal_end:
1229 
1230     msg_nowait = FALSE;
1231 
1232     /* Reset finish_op, in case it was set */
1233 #ifdef CURSOR_SHAPE
1234     c = finish_op;
1235 #endif
1236     finish_op = FALSE;
1237 #ifdef CURSOR_SHAPE
1238     /* Redraw the cursor with another shape, if we were in Operator-pending
1239      * mode or did a replace command. */
1240     if (c || ca.cmdchar == 'r')
1241     {
1242 	ui_cursor_shape();		/* may show different cursor shape */
1243 # ifdef FEAT_MOUSESHAPE
1244 	update_mouseshape(-1);
1245 # endif
1246     }
1247 #endif
1248 
1249 #ifdef FEAT_CMDL_INFO
1250     if (oap->op_type == OP_NOP && oap->regname == 0)
1251 	clear_showcmd();
1252 #endif
1253 
1254     checkpcmark();		/* check if we moved since setting pcmark */
1255     vim_free(ca.searchbuf);
1256 
1257 #ifdef FEAT_MBYTE
1258     if (has_mbyte)
1259 	mb_adjust_cursor();
1260 #endif
1261 
1262 #ifdef FEAT_SCROLLBIND
1263     if (curwin->w_p_scb && toplevel)
1264     {
1265 	validate_cursor();	/* may need to update w_leftcol */
1266 	do_check_scrollbind(TRUE);
1267     }
1268 #endif
1269 
1270     /*
1271      * May restart edit(), if we got here with CTRL-O in Insert mode (but not
1272      * if still inside a mapping that started in Visual mode).
1273      * May switch from Visual to Select mode after CTRL-O command.
1274      */
1275     if (       oap->op_type == OP_NOP
1276 #ifdef FEAT_VISUAL
1277 	    && ((restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1278 		|| restart_VIsual_select == 1)
1279 #endif
1280 	    && !(ca.retval & CA_COMMAND_BUSY)
1281 	    && stuff_empty()
1282 	    && oap->regname == 0)
1283     {
1284 #ifdef FEAT_VISUAL
1285 	if (restart_VIsual_select == 1)
1286 	{
1287 	    VIsual_select = TRUE;
1288 	    showmode();
1289 	    restart_VIsual_select = 0;
1290 	}
1291 #endif
1292 	if (restart_edit != 0
1293 #ifdef FEAT_VISUAL
1294 		&& !VIsual_active
1295 #endif
1296 		&& old_mapped_len == 0)
1297 	    (void)edit(restart_edit, FALSE, 1L);
1298     }
1299 
1300 #ifdef FEAT_VISUAL
1301     if (restart_VIsual_select == 2)
1302 	restart_VIsual_select = 1;
1303 #endif
1304 
1305     /* Save count before an operator for next time. */
1306     opcount = ca.opcount;
1307 }
1308 
1309 /*
1310  * Handle an operator after visual mode or when the movement is finished
1311  */
1312     void
1313 do_pending_operator(cap, old_col, gui_yank)
1314     cmdarg_T	*cap;
1315     int		old_col;
1316     int		gui_yank;
1317 {
1318     oparg_T	*oap = cap->oap;
1319     pos_T	old_cursor;
1320     int		empty_region_error;
1321     int		restart_edit_save;
1322 
1323 #ifdef FEAT_VISUAL
1324     /* The visual area is remembered for redo */
1325     static int	    redo_VIsual_mode = NUL; /* 'v', 'V', or Ctrl-V */
1326     static linenr_T redo_VIsual_line_count; /* number of lines */
1327     static colnr_T  redo_VIsual_col;	    /* number of cols or end column */
1328     static long	    redo_VIsual_count;	    /* count for Visual operator */
1329 # ifdef FEAT_VIRTUALEDIT
1330     int		    include_line_break = FALSE;
1331 # endif
1332 #endif
1333 
1334 #if defined(FEAT_CLIPBOARD)
1335     /*
1336      * Yank the visual area into the GUI selection register before we operate
1337      * on it and lose it forever.
1338      * Don't do it if a specific register was specified, so that ""x"*P works.
1339      * This could call do_pending_operator() recursively, but that's OK
1340      * because gui_yank will be TRUE for the nested call.
1341      */
1342     if (clip_star.available
1343 	    && oap->op_type != OP_NOP
1344 	    && !gui_yank
1345 # ifdef FEAT_VISUAL
1346 	    && VIsual_active
1347 	    && !redo_VIsual_busy
1348 # endif
1349 	    && oap->regname == 0)
1350 	clip_auto_select();
1351 #endif
1352     old_cursor = curwin->w_cursor;
1353 
1354     /*
1355      * If an operation is pending, handle it...
1356      */
1357     if ((finish_op
1358 #ifdef FEAT_VISUAL
1359 		|| VIsual_active
1360 #endif
1361 		) && oap->op_type != OP_NOP)
1362     {
1363 #ifdef FEAT_VISUAL
1364 	oap->is_VIsual = VIsual_active;
1365 	if (oap->motion_force == 'V')
1366 	    oap->motion_type = MLINE;
1367 	else if (oap->motion_force == 'v')
1368 	{
1369 	    /* If the motion was linewise, "inclusive" will not have been set.
1370 	     * Use "exclusive" to be consistent.  Makes "dvj" work nice. */
1371 	    if (oap->motion_type == MLINE)
1372 		oap->inclusive = FALSE;
1373 	    /* If the motion already was characterwise, toggle "inclusive" */
1374 	    else if (oap->motion_type == MCHAR)
1375 		oap->inclusive = !oap->inclusive;
1376 	    oap->motion_type = MCHAR;
1377 	}
1378 	else if (oap->motion_force == Ctrl_V)
1379 	{
1380 	    /* Change line- or characterwise motion into Visual block mode. */
1381 	    VIsual_active = TRUE;
1382 	    VIsual = oap->start;
1383 	    VIsual_mode = Ctrl_V;
1384 	    VIsual_select = FALSE;
1385 	    VIsual_reselect = FALSE;
1386 	}
1387 #endif
1388 
1389 	/* only redo yank when 'y' flag is in 'cpoptions' */
1390 	/* never redo "zf" (define fold) */
1391 	if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1392 #ifdef FEAT_VISUAL
1393 		&& (!VIsual_active || oap->motion_force)
1394 #endif
1395 		&& cap->cmdchar != 'D'
1396 #ifdef FEAT_FOLDING
1397 		&& oap->op_type != OP_FOLD
1398 		&& oap->op_type != OP_FOLDOPEN
1399 		&& oap->op_type != OP_FOLDOPENREC
1400 		&& oap->op_type != OP_FOLDCLOSE
1401 		&& oap->op_type != OP_FOLDCLOSEREC
1402 		&& oap->op_type != OP_FOLDDEL
1403 		&& oap->op_type != OP_FOLDDELREC
1404 #endif
1405 		)
1406 	{
1407 	    prep_redo(oap->regname, cap->count0,
1408 		    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1409 		    oap->motion_force, cap->cmdchar, cap->nchar);
1410 	    if (cap->cmdchar == '/' || cap->cmdchar == '?') /* was a search */
1411 	    {
1412 		/*
1413 		 * If 'cpoptions' does not contain 'r', insert the search
1414 		 * pattern to really repeat the same command.
1415 		 */
1416 		if (vim_strchr(p_cpo, CPO_REDO) == NULL)
1417 		    AppendToRedobuffLit(cap->searchbuf);
1418 		AppendToRedobuff(NL_STR);
1419 	    }
1420 	    else if (cap->cmdchar == ':')
1421 	    {
1422 		/* do_cmdline() has stored the first typed line in
1423 		 * "repeat_cmdline".  When several lines are typed repeating
1424 		 * won't be possible. */
1425 		if (repeat_cmdline == NULL)
1426 		    ResetRedobuff();
1427 		else
1428 		{
1429 		    AppendToRedobuffLit(repeat_cmdline);
1430 		    AppendToRedobuff(NL_STR);
1431 		    vim_free(repeat_cmdline);
1432 		    repeat_cmdline = NULL;
1433 		}
1434 	    }
1435 	}
1436 
1437 #ifdef FEAT_VISUAL
1438 	if (redo_VIsual_busy)
1439 	{
1440 	    oap->start = curwin->w_cursor;
1441 	    curwin->w_cursor.lnum += redo_VIsual_line_count - 1;
1442 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1443 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1444 	    VIsual_mode = redo_VIsual_mode;
1445 	    if (VIsual_mode == 'v')
1446 	    {
1447 		if (redo_VIsual_line_count <= 1)
1448 		    curwin->w_cursor.col += redo_VIsual_col - 1;
1449 		else
1450 		    curwin->w_cursor.col = redo_VIsual_col;
1451 	    }
1452 	    if (redo_VIsual_col == MAXCOL)
1453 	    {
1454 		curwin->w_curswant = MAXCOL;
1455 		coladvance((colnr_T)MAXCOL);
1456 	    }
1457 	    cap->count0 = redo_VIsual_count;
1458 	    if (redo_VIsual_count != 0)
1459 		cap->count1 = redo_VIsual_count;
1460 	    else
1461 		cap->count1 = 1;
1462 	}
1463 	else if (VIsual_active)
1464 	{
1465 	    /* Save the current VIsual area for '< and '> marks, and "gv" */
1466 	    curbuf->b_visual_start = VIsual;
1467 	    curbuf->b_visual_end = curwin->w_cursor;
1468 	    curbuf->b_visual_mode = VIsual_mode;
1469 # ifdef FEAT_EVAL
1470 	    curbuf->b_visual_mode_eval = VIsual_mode;
1471 # endif
1472 	    curbuf->b_visual_curswant = curwin->w_curswant;
1473 
1474 	    /* In Select mode, a linewise selection is operated upon like a
1475 	     * characterwise selection. */
1476 	    if (VIsual_select && VIsual_mode == 'V')
1477 	    {
1478 		if (lt(VIsual, curwin->w_cursor))
1479 		{
1480 		    VIsual.col = 0;
1481 		    curwin->w_cursor.col =
1482 			       (colnr_T)STRLEN(ml_get(curwin->w_cursor.lnum));
1483 		}
1484 		else
1485 		{
1486 		    curwin->w_cursor.col = 0;
1487 		    VIsual.col = (colnr_T)STRLEN(ml_get(VIsual.lnum));
1488 		}
1489 		VIsual_mode = 'v';
1490 	    }
1491 	    /* If 'selection' is "exclusive", backup one character for
1492 	     * charwise selections. */
1493 	    else if (VIsual_mode == 'v')
1494 	    {
1495 # ifdef FEAT_VIRTUALEDIT
1496 		include_line_break =
1497 # endif
1498 		    unadjust_for_sel();
1499 	    }
1500 
1501 	    oap->start = VIsual;
1502 	    if (VIsual_mode == 'V')
1503 		oap->start.col = 0;
1504 	}
1505 #endif /* FEAT_VISUAL */
1506 
1507 	/*
1508 	 * Set oap->start to the first position of the operated text, oap->end
1509 	 * to the end of the operated text.  w_cursor is equal to oap->start.
1510 	 */
1511 	if (lt(oap->start, curwin->w_cursor))
1512 	{
1513 #ifdef FEAT_FOLDING
1514 	    /* Include folded lines completely. */
1515 	    if (!VIsual_active)
1516 	    {
1517 		if (hasFolding(oap->start.lnum, &oap->start.lnum, NULL))
1518 		    oap->start.col = 0;
1519 		if (hasFolding(curwin->w_cursor.lnum, NULL,
1520 						      &curwin->w_cursor.lnum))
1521 		    curwin->w_cursor.col = (colnr_T)STRLEN(ml_get_curline());
1522 	    }
1523 #endif
1524 	    oap->end = curwin->w_cursor;
1525 	    curwin->w_cursor = oap->start;
1526 
1527 	    /* w_virtcol may have been updated; if the cursor goes back to its
1528 	     * previous position w_virtcol becomes invalid and isn't updated
1529 	     * automatically. */
1530 	    curwin->w_valid &= ~VALID_VIRTCOL;
1531 	}
1532 	else
1533 	{
1534 #ifdef FEAT_FOLDING
1535 	    /* Include folded lines completely. */
1536 	    if (!VIsual_active && oap->motion_type == MLINE)
1537 	    {
1538 		if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum,
1539 									NULL))
1540 		    curwin->w_cursor.col = 0;
1541 		if (hasFolding(oap->start.lnum, NULL, &oap->start.lnum))
1542 		    oap->start.col = (colnr_T)STRLEN(ml_get(oap->start.lnum));
1543 	    }
1544 #endif
1545 	    oap->end = oap->start;
1546 	    oap->start = curwin->w_cursor;
1547 	}
1548 
1549 	oap->line_count = oap->end.lnum - oap->start.lnum + 1;
1550 
1551 #ifdef FEAT_VIRTUALEDIT
1552 	/* Set "virtual_op" before resetting VIsual_active. */
1553 	virtual_op = virtual_active();
1554 #endif
1555 
1556 #ifdef FEAT_VISUAL
1557 	if (VIsual_active || redo_VIsual_busy)
1558 	{
1559 	    if (VIsual_mode == Ctrl_V)	/* block mode */
1560 	    {
1561 		colnr_T	    start, end;
1562 
1563 		oap->block_mode = TRUE;
1564 
1565 		getvvcol(curwin, &(oap->start),
1566 				      &oap->start_vcol, NULL, &oap->end_vcol);
1567 		if (!redo_VIsual_busy)
1568 		{
1569 		    getvvcol(curwin, &(oap->end), &start, NULL, &end);
1570 
1571 		    if (start < oap->start_vcol)
1572 			oap->start_vcol = start;
1573 		    if (end > oap->end_vcol)
1574 		    {
1575 			if (*p_sel == 'e' && start >= 1
1576 						&& start - 1 >= oap->end_vcol)
1577 			    oap->end_vcol = start - 1;
1578 			else
1579 			    oap->end_vcol = end;
1580 		    }
1581 		}
1582 
1583 		/* if '$' was used, get oap->end_vcol from longest line */
1584 		if (curwin->w_curswant == MAXCOL)
1585 		{
1586 		    curwin->w_cursor.col = MAXCOL;
1587 		    oap->end_vcol = 0;
1588 		    for (curwin->w_cursor.lnum = oap->start.lnum;
1589 			    curwin->w_cursor.lnum <= oap->end.lnum;
1590 						      ++curwin->w_cursor.lnum)
1591 		    {
1592 			getvvcol(curwin, &curwin->w_cursor, NULL, NULL, &end);
1593 			if (end > oap->end_vcol)
1594 			    oap->end_vcol = end;
1595 		    }
1596 		}
1597 		else if (redo_VIsual_busy)
1598 		    oap->end_vcol = oap->start_vcol + redo_VIsual_col - 1;
1599 		/*
1600 		 * Correct oap->end.col and oap->start.col to be the
1601 		 * upper-left and lower-right corner of the block area.
1602 		 *
1603 		 * (Actually, this does convert column positions into character
1604 		 * positions)
1605 		 */
1606 		curwin->w_cursor.lnum = oap->end.lnum;
1607 		coladvance(oap->end_vcol);
1608 		oap->end = curwin->w_cursor;
1609 
1610 		curwin->w_cursor = oap->start;
1611 		coladvance(oap->start_vcol);
1612 		oap->start = curwin->w_cursor;
1613 	    }
1614 
1615 	    if (!redo_VIsual_busy && !gui_yank)
1616 	    {
1617 		/*
1618 		 * Prepare to reselect and redo Visual: this is based on the
1619 		 * size of the Visual text
1620 		 */
1621 		resel_VIsual_mode = VIsual_mode;
1622 		if (curwin->w_curswant == MAXCOL)
1623 		    resel_VIsual_col = MAXCOL;
1624 		else if (VIsual_mode == Ctrl_V)
1625 		    resel_VIsual_col = oap->end_vcol - oap->start_vcol + 1;
1626 		else if (oap->line_count > 1)
1627 		    resel_VIsual_col = oap->end.col;
1628 		else
1629 		    resel_VIsual_col = oap->end.col - oap->start.col + 1;
1630 		resel_VIsual_line_count = oap->line_count;
1631 	    }
1632 
1633 	    /* can't redo yank (unless 'y' is in 'cpoptions') and ":" */
1634 	    if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1635 		    && oap->op_type != OP_COLON
1636 #ifdef FEAT_FOLDING
1637 		    && oap->op_type != OP_FOLD
1638 		    && oap->op_type != OP_FOLDOPEN
1639 		    && oap->op_type != OP_FOLDOPENREC
1640 		    && oap->op_type != OP_FOLDCLOSE
1641 		    && oap->op_type != OP_FOLDCLOSEREC
1642 		    && oap->op_type != OP_FOLDDEL
1643 		    && oap->op_type != OP_FOLDDELREC
1644 #endif
1645 		    && oap->motion_force == NUL
1646 		    )
1647 	    {
1648 		/* Prepare for redoing.  Only use the nchar field for "r",
1649 		 * otherwise it might be the second char of the operator. */
1650 		prep_redo(oap->regname, 0L, NUL, 'v',
1651 				get_op_char(oap->op_type),
1652 				get_extra_op_char(oap->op_type),
1653 				oap->op_type == OP_REPLACE ? cap->nchar : NUL);
1654 		if (!redo_VIsual_busy)
1655 		{
1656 		    redo_VIsual_mode = resel_VIsual_mode;
1657 		    redo_VIsual_col = resel_VIsual_col;
1658 		    redo_VIsual_line_count = resel_VIsual_line_count;
1659 		    redo_VIsual_count = cap->count0;
1660 		}
1661 	    }
1662 
1663 	    /*
1664 	     * oap->inclusive defaults to TRUE.
1665 	     * If oap->end is on a NUL (empty line) oap->inclusive becomes
1666 	     * FALSE.  This makes "d}P" and "v}dP" work the same.
1667 	     */
1668 	    if (oap->motion_force == NUL || oap->motion_type == MLINE)
1669 		oap->inclusive = TRUE;
1670 	    if (VIsual_mode == 'V')
1671 		oap->motion_type = MLINE;
1672 	    else
1673 	    {
1674 		oap->motion_type = MCHAR;
1675 		if (VIsual_mode != Ctrl_V && *ml_get_pos(&(oap->end)) == NUL
1676 # ifdef FEAT_VIRTUALEDIT
1677 			&& (include_line_break || !virtual_op)
1678 # endif
1679 			)
1680 		{
1681 		    oap->inclusive = FALSE;
1682 		    /* Try to include the newline, unless it's an operator
1683 		     * that works on lines only */
1684 		    if (*p_sel != 'o'
1685 			    && !op_on_lines(oap->op_type)
1686 			    && oap->end.lnum < curbuf->b_ml.ml_line_count)
1687 		    {
1688 			++oap->end.lnum;
1689 			oap->end.col = 0;
1690 # ifdef FEAT_VIRTUALEDIT
1691 			oap->end.coladd = 0;
1692 # endif
1693 			++oap->line_count;
1694 		    }
1695 		}
1696 	    }
1697 
1698 	    redo_VIsual_busy = FALSE;
1699 	    /*
1700 	     * Switch Visual off now, so screen updating does
1701 	     * not show inverted text when the screen is redrawn.
1702 	     * With OP_YANK and sometimes with OP_COLON and OP_FILTER there is
1703 	     * no screen redraw, so it is done here to remove the inverted
1704 	     * part.
1705 	     */
1706 	    if (!gui_yank)
1707 	    {
1708 		VIsual_active = FALSE;
1709 # ifdef FEAT_MOUSE
1710 		setmouse();
1711 		mouse_dragging = 0;
1712 # endif
1713 		if (p_smd)
1714 		    clear_cmdline = TRUE;   /* unshow visual mode later */
1715 #ifdef FEAT_CMDL_INFO
1716 		else
1717 		    clear_showcmd();
1718 #endif
1719 		if ((oap->op_type == OP_YANK
1720 			    || oap->op_type == OP_COLON
1721 			    || oap->op_type == OP_FILTER)
1722 			&& oap->motion_force == NUL)
1723 		    redraw_curbuf_later(INVERTED);
1724 	    }
1725 	}
1726 #endif
1727 
1728 #ifdef FEAT_MBYTE
1729 	/* Include the trailing byte of a multi-byte char. */
1730 	if (has_mbyte && oap->inclusive)
1731 	{
1732 	    int		l;
1733 
1734 	    l = (*mb_ptr2len)(ml_get_pos(&oap->end));
1735 	    if (l > 1)
1736 		oap->end.col += l - 1;
1737 	}
1738 #endif
1739 	curwin->w_set_curswant = TRUE;
1740 
1741 	/*
1742 	 * oap->empty is set when start and end are the same.  The inclusive
1743 	 * flag affects this too, unless yanking and the end is on a NUL.
1744 	 */
1745 	oap->empty = (oap->motion_type == MCHAR
1746 		    && (!oap->inclusive
1747 			|| (oap->op_type == OP_YANK
1748 			    && gchar_pos(&oap->end) == NUL))
1749 		    && equalpos(oap->start, oap->end)
1750 #ifdef FEAT_VIRTUALEDIT
1751 		    && !(virtual_op && oap->start.coladd != oap->end.coladd)
1752 #endif
1753 		    );
1754 	/*
1755 	 * For delete, change and yank, it's an error to operate on an
1756 	 * empty region, when 'E' included in 'cpoptions' (Vi compatible).
1757 	 */
1758 	empty_region_error = (oap->empty
1759 				&& vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL);
1760 
1761 #ifdef FEAT_VISUAL
1762 	/* Force a redraw when operating on an empty Visual region, when
1763 	 * 'modifiable is off or creating a fold. */
1764 	if (oap->is_VIsual && (oap->empty || !curbuf->b_p_ma
1765 # ifdef FEAT_FOLDING
1766 		    || oap->op_type == OP_FOLD
1767 # endif
1768 		    ))
1769 	    redraw_curbuf_later(INVERTED);
1770 #endif
1771 
1772 	/*
1773 	 * If the end of an operator is in column one while oap->motion_type
1774 	 * is MCHAR and oap->inclusive is FALSE, we put op_end after the last
1775 	 * character in the previous line. If op_start is on or before the
1776 	 * first non-blank in the line, the operator becomes linewise
1777 	 * (strange, but that's the way vi does it).
1778 	 */
1779 	if (	   oap->motion_type == MCHAR
1780 		&& oap->inclusive == FALSE
1781 		&& !(cap->retval & CA_NO_ADJ_OP_END)
1782 		&& oap->end.col == 0
1783 #ifdef FEAT_VISUAL
1784 		&& (!oap->is_VIsual || *p_sel == 'o')
1785 		&& !oap->block_mode
1786 #endif
1787 		&& oap->line_count > 1)
1788 	{
1789 	    oap->end_adjusted = TRUE;	    /* remember that we did this */
1790 	    --oap->line_count;
1791 	    --oap->end.lnum;
1792 	    if (inindent(0))
1793 		oap->motion_type = MLINE;
1794 	    else
1795 	    {
1796 		oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
1797 		if (oap->end.col)
1798 		{
1799 		    --oap->end.col;
1800 		    oap->inclusive = TRUE;
1801 		}
1802 	    }
1803 	}
1804 	else
1805 	    oap->end_adjusted = FALSE;
1806 
1807 	switch (oap->op_type)
1808 	{
1809 	case OP_LSHIFT:
1810 	case OP_RSHIFT:
1811 	    op_shift(oap, TRUE,
1812 #ifdef FEAT_VISUAL
1813 		    oap->is_VIsual ? (int)cap->count1 :
1814 #endif
1815 		    1);
1816 	    auto_format(FALSE, TRUE);
1817 	    break;
1818 
1819 	case OP_JOIN_NS:
1820 	case OP_JOIN:
1821 	    if (oap->line_count < 2)
1822 		oap->line_count = 2;
1823 	    if (curwin->w_cursor.lnum + oap->line_count - 1 >
1824 						   curbuf->b_ml.ml_line_count)
1825 		beep_flush();
1826 	    else
1827 	    {
1828 		do_do_join(oap->line_count, oap->op_type == OP_JOIN);
1829 		auto_format(FALSE, TRUE);
1830 	    }
1831 	    break;
1832 
1833 	case OP_DELETE:
1834 #ifdef FEAT_VISUAL
1835 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1836 #endif
1837 	    if (empty_region_error)
1838 		vim_beep();
1839 	    else
1840 	    {
1841 		(void)op_delete(oap);
1842 		if (oap->motion_type == MLINE && has_format_option(FO_AUTO))
1843 		    u_save_cursor();	    /* cursor line wasn't saved yet */
1844 		auto_format(FALSE, TRUE);
1845 	    }
1846 	    break;
1847 
1848 	case OP_YANK:
1849 	    if (empty_region_error)
1850 	    {
1851 		if (!gui_yank)
1852 		    vim_beep();
1853 	    }
1854 	    else
1855 		(void)op_yank(oap, FALSE, !gui_yank);
1856 	    check_cursor_col();
1857 	    break;
1858 
1859 	case OP_CHANGE:
1860 #ifdef FEAT_VISUAL
1861 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1862 #endif
1863 	    if (empty_region_error)
1864 		vim_beep();
1865 	    else
1866 	    {
1867 		/* This is a new edit command, not a restart.  Need to
1868 		 * remember it to make 'insertmode' work with mappings for
1869 		 * Visual mode.  But do this only once and not when typed and
1870 		 * 'insertmode' isn't set. */
1871 		if (p_im || !KeyTyped)
1872 		    restart_edit_save = restart_edit;
1873 		else
1874 		    restart_edit_save = 0;
1875 		restart_edit = 0;
1876 		/* Reset finish_op now, don't want it set inside edit(). */
1877 		finish_op = FALSE;
1878 		if (op_change(oap))	/* will call edit() */
1879 		    cap->retval |= CA_COMMAND_BUSY;
1880 		if (restart_edit == 0)
1881 		    restart_edit = restart_edit_save;
1882 	    }
1883 	    break;
1884 
1885 	case OP_FILTER:
1886 	    if (vim_strchr(p_cpo, CPO_FILTER) != NULL)
1887 		AppendToRedobuff((char_u *)"!\r");  /* use any last used !cmd */
1888 	    else
1889 		bangredo = TRUE;    /* do_bang() will put cmd in redo buffer */
1890 
1891 	case OP_INDENT:
1892 	case OP_COLON:
1893 
1894 #if defined(FEAT_LISP) || defined(FEAT_CINDENT)
1895 	    /*
1896 	     * If 'equalprg' is empty, do the indenting internally.
1897 	     */
1898 	    if (oap->op_type == OP_INDENT && *get_equalprg() == NUL)
1899 	    {
1900 # ifdef FEAT_LISP
1901 		if (curbuf->b_p_lisp)
1902 		{
1903 		    op_reindent(oap, get_lisp_indent);
1904 		    break;
1905 		}
1906 # endif
1907 # ifdef FEAT_CINDENT
1908 		op_reindent(oap,
1909 #  ifdef FEAT_EVAL
1910 			*curbuf->b_p_inde != NUL ? get_expr_indent :
1911 #  endif
1912 			    get_c_indent);
1913 		break;
1914 # endif
1915 	    }
1916 #endif
1917 
1918 	    op_colon(oap);
1919 	    break;
1920 
1921 	case OP_TILDE:
1922 	case OP_UPPER:
1923 	case OP_LOWER:
1924 	case OP_ROT13:
1925 	    if (empty_region_error)
1926 		vim_beep();
1927 	    else
1928 		op_tilde(oap);
1929 	    check_cursor_col();
1930 	    break;
1931 
1932 	case OP_FORMAT:
1933 	    if (*p_fp != NUL)
1934 		op_colon(oap);		/* use external command */
1935 	    else
1936 		op_format(oap, FALSE);	/* use internal function */
1937 	    break;
1938 
1939 	case OP_FORMAT2:
1940 	    op_format(oap, TRUE);	/* use internal function */
1941 	    break;
1942 
1943 	case OP_INSERT:
1944 	case OP_APPEND:
1945 #ifdef FEAT_VISUAL
1946 	    VIsual_reselect = FALSE;	/* don't reselect now */
1947 #endif
1948 #ifdef FEAT_VISUALEXTRA
1949 	    if (empty_region_error)
1950 		vim_beep();
1951 	    else
1952 	    {
1953 		/* This is a new edit command, not a restart.  Need to
1954 		 * remember it to make 'insertmode' work with mappings for
1955 		 * Visual mode.  But do this only once. */
1956 		restart_edit_save = restart_edit;
1957 		restart_edit = 0;
1958 
1959 		op_insert(oap, cap->count1);
1960 
1961 		/* TODO: when inserting in several lines, should format all
1962 		 * the lines. */
1963 		auto_format(FALSE, TRUE);
1964 
1965 		if (restart_edit == 0)
1966 		    restart_edit = restart_edit_save;
1967 	    }
1968 #else
1969 	    vim_beep();
1970 #endif
1971 	    break;
1972 
1973 	case OP_REPLACE:
1974 #ifdef FEAT_VISUAL
1975 	    VIsual_reselect = FALSE;	/* don't reselect now */
1976 #endif
1977 #ifdef FEAT_VISUALEXTRA
1978 	    if (empty_region_error)
1979 #endif
1980 		vim_beep();
1981 #ifdef FEAT_VISUALEXTRA
1982 	    else
1983 		op_replace(oap, cap->nchar);
1984 #endif
1985 	    break;
1986 
1987 #ifdef FEAT_FOLDING
1988 	case OP_FOLD:
1989 	    VIsual_reselect = FALSE;	/* don't reselect now */
1990 	    foldCreate(oap->start.lnum, oap->end.lnum);
1991 	    break;
1992 
1993 	case OP_FOLDOPEN:
1994 	case OP_FOLDOPENREC:
1995 	case OP_FOLDCLOSE:
1996 	case OP_FOLDCLOSEREC:
1997 	    VIsual_reselect = FALSE;	/* don't reselect now */
1998 	    opFoldRange(oap->start.lnum, oap->end.lnum,
1999 		    oap->op_type == OP_FOLDOPEN
2000 					    || oap->op_type == OP_FOLDOPENREC,
2001 		    oap->op_type == OP_FOLDOPENREC
2002 					  || oap->op_type == OP_FOLDCLOSEREC,
2003 					  oap->is_VIsual);
2004 	    break;
2005 
2006 	case OP_FOLDDEL:
2007 	case OP_FOLDDELREC:
2008 	    VIsual_reselect = FALSE;	/* don't reselect now */
2009 	    deleteFold(oap->start.lnum, oap->end.lnum,
2010 			       oap->op_type == OP_FOLDDELREC, oap->is_VIsual);
2011 	    break;
2012 #endif
2013 	default:
2014 	    clearopbeep(oap);
2015 	}
2016 #ifdef FEAT_VIRTUALEDIT
2017 	virtual_op = MAYBE;
2018 #endif
2019 	if (!gui_yank)
2020 	{
2021 	    /*
2022 	     * if 'sol' not set, go back to old column for some commands
2023 	     */
2024 	    if (!p_sol && oap->motion_type == MLINE && !oap->end_adjusted
2025 		    && (oap->op_type == OP_LSHIFT || oap->op_type == OP_RSHIFT
2026 						|| oap->op_type == OP_DELETE))
2027 		coladvance(curwin->w_curswant = old_col);
2028 	}
2029 	else
2030 	{
2031 	    curwin->w_cursor = old_cursor;
2032 	}
2033 #ifdef FEAT_VISUAL
2034 	oap->block_mode = FALSE;
2035 #endif
2036 	clearop(oap);
2037     }
2038 }
2039 
2040 /*
2041  * Handle indent and format operators and visual mode ":".
2042  */
2043     static void
2044 op_colon(oap)
2045     oparg_T	*oap;
2046 {
2047     stuffcharReadbuff(':');
2048 #ifdef FEAT_VISUAL
2049     if (oap->is_VIsual)
2050 	stuffReadbuff((char_u *)"'<,'>");
2051     else
2052 #endif
2053     {
2054 	/*
2055 	 * Make the range look nice, so it can be repeated.
2056 	 */
2057 	if (oap->start.lnum == curwin->w_cursor.lnum)
2058 	    stuffcharReadbuff('.');
2059 	else
2060 	    stuffnumReadbuff((long)oap->start.lnum);
2061 	if (oap->end.lnum != oap->start.lnum)
2062 	{
2063 	    stuffcharReadbuff(',');
2064 	    if (oap->end.lnum == curwin->w_cursor.lnum)
2065 		stuffcharReadbuff('.');
2066 	    else if (oap->end.lnum == curbuf->b_ml.ml_line_count)
2067 		stuffcharReadbuff('$');
2068 	    else if (oap->start.lnum == curwin->w_cursor.lnum)
2069 	    {
2070 		stuffReadbuff((char_u *)".+");
2071 		stuffnumReadbuff((long)oap->line_count - 1);
2072 	    }
2073 	    else
2074 		stuffnumReadbuff((long)oap->end.lnum);
2075 	}
2076     }
2077     if (oap->op_type != OP_COLON)
2078 	stuffReadbuff((char_u *)"!");
2079     if (oap->op_type == OP_INDENT)
2080     {
2081 #ifndef FEAT_CINDENT
2082 	if (*get_equalprg() == NUL)
2083 	    stuffReadbuff((char_u *)"indent");
2084 	else
2085 #endif
2086 	    stuffReadbuff(get_equalprg());
2087 	stuffReadbuff((char_u *)"\n");
2088     }
2089     else if (oap->op_type == OP_FORMAT)
2090     {
2091 	if (*p_fp == NUL)
2092 	    stuffReadbuff((char_u *)"fmt");
2093 	else
2094 	    stuffReadbuff(p_fp);
2095 	stuffReadbuff((char_u *)"\n']");
2096     }
2097 
2098     /*
2099      * do_cmdline() does the rest
2100      */
2101 }
2102 
2103 #if defined(FEAT_MOUSE) || defined(PROTO)
2104 /*
2105  * Do the appropriate action for the current mouse click in the current mode.
2106  * Not used for Command-line mode.
2107  *
2108  * Normal Mode:
2109  * event	 modi-	position      visual	   change   action
2110  *		 fier	cursor			   window
2111  * left press	  -	yes	    end		    yes
2112  * left press	  C	yes	    end		    yes	    "^]" (2)
2113  * left press	  S	yes	    end		    yes	    "*" (2)
2114  * left drag	  -	yes	start if moved	    no
2115  * left relse	  -	yes	start if moved	    no
2116  * middle press	  -	yes	 if not active	    no	    put register
2117  * middle press	  -	yes	 if active	    no	    yank and put
2118  * right press	  -	yes	start or extend	    yes
2119  * right press	  S	yes	no change	    yes	    "#" (2)
2120  * right drag	  -	yes	extend		    no
2121  * right relse	  -	yes	extend		    no
2122  *
2123  * Insert or Replace Mode:
2124  * event	 modi-	position      visual	   change   action
2125  *		 fier	cursor			   window
2126  * left press	  -	yes	(cannot be active)  yes
2127  * left press	  C	yes	(cannot be active)  yes	    "CTRL-O^]" (2)
2128  * left press	  S	yes	(cannot be active)  yes	    "CTRL-O*" (2)
2129  * left drag	  -	yes	start or extend (1) no	    CTRL-O (1)
2130  * left relse	  -	yes	start or extend (1) no	    CTRL-O (1)
2131  * middle press	  -	no	(cannot be active)  no	    put register
2132  * right press	  -	yes	start or extend	    yes	    CTRL-O
2133  * right press	  S	yes	(cannot be active)  yes	    "CTRL-O#" (2)
2134  *
2135  * (1) only if mouse pointer moved since press
2136  * (2) only if click is in same buffer
2137  *
2138  * Return TRUE if start_arrow() should be called for edit mode.
2139  */
2140     int
2141 do_mouse(oap, c, dir, count, fixindent)
2142     oparg_T	*oap;		/* operator argument, can be NULL */
2143     int		c;		/* K_LEFTMOUSE, etc */
2144     int		dir;		/* Direction to 'put' if necessary */
2145     long	count;
2146     int		fixindent;	/* PUT_FIXINDENT if fixing indent necessary */
2147 {
2148     static int	do_always = FALSE;	/* ignore 'mouse' setting next time */
2149     static int	got_click = FALSE;	/* got a click some time back */
2150 
2151     int		which_button;	/* MOUSE_LEFT, _MIDDLE or _RIGHT */
2152     int		is_click;	/* If FALSE it's a drag or release event */
2153     int		is_drag;	/* If TRUE it's a drag event */
2154     int		jump_flags = 0;	/* flags for jump_to_mouse() */
2155     pos_T	start_visual;
2156     int		moved;		/* Has cursor moved? */
2157     int		in_status_line;	/* mouse in status line */
2158 #ifdef FEAT_VERTSPLIT
2159     int		in_sep_line;	/* mouse in vertical separator line */
2160 #endif
2161     int		c1, c2;
2162 #if defined(FEAT_FOLDING)
2163     pos_T	save_cursor;
2164 #endif
2165     win_T	*old_curwin = curwin;
2166 #ifdef FEAT_VISUAL
2167     static pos_T orig_cursor;
2168     colnr_T	leftcol, rightcol;
2169     pos_T	end_visual;
2170     int		diff;
2171     int		old_active = VIsual_active;
2172     int		old_mode = VIsual_mode;
2173 #endif
2174     int		regname;
2175 
2176 #if defined(FEAT_FOLDING)
2177     save_cursor = curwin->w_cursor;
2178 #endif
2179 
2180     /*
2181      * When GUI is active, always recognize mouse events, otherwise:
2182      * - Ignore mouse event in normal mode if 'mouse' doesn't include 'n'.
2183      * - Ignore mouse event in visual mode if 'mouse' doesn't include 'v'.
2184      * - For command line and insert mode 'mouse' is checked before calling
2185      *	 do_mouse().
2186      */
2187     if (do_always)
2188 	do_always = FALSE;
2189     else
2190 #ifdef FEAT_GUI
2191 	if (!gui.in_use)
2192 #endif
2193 	{
2194 #ifdef FEAT_VISUAL
2195 	    if (VIsual_active)
2196 	    {
2197 		if (!mouse_has(MOUSE_VISUAL))
2198 		    return FALSE;
2199 	    }
2200 	    else
2201 #endif
2202 		if (State == NORMAL && !mouse_has(MOUSE_NORMAL))
2203 		return FALSE;
2204 	}
2205 
2206     which_button = get_mouse_button(KEY2TERMCAP1(c), &is_click, &is_drag);
2207 
2208 #ifdef FEAT_MOUSESHAPE
2209     /* May have stopped dragging the status or separator line.  The pointer is
2210      * most likely still on the status or separator line. */
2211     if (!is_drag && drag_status_line)
2212     {
2213 	drag_status_line = FALSE;
2214 	update_mouseshape(SHAPE_IDX_STATUS);
2215     }
2216 # ifdef FEAT_VERTSPLIT
2217     if (!is_drag && drag_sep_line)
2218     {
2219 	drag_sep_line = FALSE;
2220 	update_mouseshape(SHAPE_IDX_VSEP);
2221     }
2222 # endif
2223 #endif
2224 
2225     /*
2226      * Ignore drag and release events if we didn't get a click.
2227      */
2228     if (is_click)
2229 	got_click = TRUE;
2230     else
2231     {
2232 	if (!got_click)			/* didn't get click, ignore */
2233 	    return FALSE;
2234 	if (!is_drag)			/* release, reset got_click */
2235 	    got_click = FALSE;
2236     }
2237 
2238     /*
2239      * ALT is currently ignored
2240      */
2241     if ((mod_mask & MOD_MASK_ALT))
2242 	return FALSE;
2243 
2244     /*
2245      * CTRL right mouse button does CTRL-T
2246      */
2247     if (is_click && (mod_mask & MOD_MASK_CTRL) && which_button == MOUSE_RIGHT)
2248     {
2249 	if (State & INSERT)
2250 	    stuffcharReadbuff(Ctrl_O);
2251 	if (count > 1)
2252 	    stuffnumReadbuff(count);
2253 	stuffcharReadbuff(Ctrl_T);
2254 	got_click = FALSE;		/* ignore drag&release now */
2255 	return FALSE;
2256     }
2257 
2258     /*
2259      * CTRL only works with left mouse button
2260      */
2261     if ((mod_mask & MOD_MASK_CTRL) && which_button != MOUSE_LEFT)
2262 	return FALSE;
2263 
2264     /*
2265      * When a modifier is down, ignore drag and release events, as well as
2266      * multiple clicks and the middle mouse button.
2267      * Accept shift-leftmouse drags when 'mousemodel' is "popup.*".
2268      */
2269     if ((mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL | MOD_MASK_ALT
2270 							     | MOD_MASK_META))
2271 	    && (!is_click
2272 		|| (mod_mask & MOD_MASK_MULTI_CLICK)
2273 		|| which_button == MOUSE_MIDDLE)
2274 	    && !((mod_mask & MOD_MASK_SHIFT)
2275 		&& mouse_model_popup()
2276 		&& which_button == MOUSE_LEFT)
2277 	    )
2278 	return FALSE;
2279 
2280     /*
2281      * If the button press was used as the movement command for an operator
2282      * (eg "d<MOUSE>"), or it is the middle button that is held down, ignore
2283      * drag/release events.
2284      */
2285     if (!is_click && which_button == MOUSE_MIDDLE)
2286 	return FALSE;
2287 
2288     if (oap != NULL)
2289 	regname = oap->regname;
2290     else
2291 	regname = 0;
2292 
2293     /*
2294      * Middle mouse button does a 'put' of the selected text
2295      */
2296     if (which_button == MOUSE_MIDDLE)
2297     {
2298 	if (State == NORMAL)
2299 	{
2300 	    /*
2301 	     * If an operator was pending, we don't know what the user wanted
2302 	     * to do. Go back to normal mode: Clear the operator and beep().
2303 	     */
2304 	    if (oap != NULL && oap->op_type != OP_NOP)
2305 	    {
2306 		clearopbeep(oap);
2307 		return FALSE;
2308 	    }
2309 
2310 #ifdef FEAT_VISUAL
2311 	    /*
2312 	     * If visual was active, yank the highlighted text and put it
2313 	     * before the mouse pointer position.
2314 	     */
2315 	    if (VIsual_active)
2316 	    {
2317 		stuffcharReadbuff('y');
2318 		stuffcharReadbuff(K_MIDDLEMOUSE);
2319 		do_always = TRUE;	/* ignore 'mouse' setting next time */
2320 		return FALSE;
2321 	    }
2322 #endif
2323 	    /*
2324 	     * The rest is below jump_to_mouse()
2325 	     */
2326 	}
2327 
2328 	else if ((State & INSERT) == 0)
2329 	    return FALSE;
2330 
2331 	/*
2332 	 * Middle click in insert mode doesn't move the mouse, just insert the
2333 	 * contents of a register.  '.' register is special, can't insert that
2334 	 * with do_put().
2335 	 * Also paste at the cursor if the current mode isn't in 'mouse' (only
2336 	 * happens for the GUI).
2337 	 */
2338 	if ((State & INSERT) || !mouse_has(MOUSE_NORMAL))
2339 	{
2340 	    if (regname == '.')
2341 		insert_reg(regname, TRUE);
2342 	    else
2343 	    {
2344 #ifdef FEAT_CLIPBOARD
2345 		if (clip_star.available && regname == 0)
2346 		    regname = '*';
2347 #endif
2348 		if ((State & REPLACE_FLAG) && !yank_register_mline(regname))
2349 		    insert_reg(regname, TRUE);
2350 		else
2351 		{
2352 		    do_put(regname, BACKWARD, 1L, fixindent | PUT_CURSEND);
2353 
2354 		    /* Repeat it with CTRL-R CTRL-O r or CTRL-R CTRL-P r */
2355 		    AppendCharToRedobuff(Ctrl_R);
2356 		    AppendCharToRedobuff(fixindent ? Ctrl_P : Ctrl_O);
2357 		    AppendCharToRedobuff(regname == 0 ? '"' : regname);
2358 		}
2359 	    }
2360 	    return FALSE;
2361 	}
2362     }
2363 
2364     /* When dragging or button-up stay in the same window. */
2365     if (!is_click)
2366 	jump_flags |= MOUSE_FOCUS | MOUSE_DID_MOVE;
2367 
2368     start_visual.lnum = 0;
2369 
2370     /*
2371      * When 'mousemodel' is "popup" or "popup_setpos", translate mouse events:
2372      * right button up   -> pop-up menu
2373      * shift-left button -> right button
2374      */
2375     if (mouse_model_popup())
2376     {
2377 	if (which_button == MOUSE_RIGHT
2378 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2379 	{
2380 	    /*
2381 	     * NOTE: Ignore right button down and drag mouse events.
2382 	     * Windows only shows the popup menu on the button up event.
2383 	     */
2384 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_PHOTON) || defined(FEAT_GUI_KDE)
2385 	    if (!is_click)
2386 		return FALSE;
2387 #endif
2388 #if defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN)
2389 	    if (is_click || is_drag)
2390 		return FALSE;
2391 #endif
2392 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_KDE) \
2393 	    || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \
2394 	    || defined(FEAT_GUI_MAC) || defined(FEAT_GUI_PHOTON)
2395 	    if (gui.in_use)
2396 	    {
2397 		jump_flags = 0;
2398 		if (STRCMP(p_mousem, "popup_setpos") == 0)
2399 		{
2400 		    /* First set the cursor position before showing the popup
2401 		     * menu. */
2402 #ifdef FEAT_VISUAL
2403 		    if (VIsual_active)
2404 		    {
2405 			pos_T    m_pos;
2406 
2407 			/*
2408 			 * set MOUSE_MAY_STOP_VIS if we are outside the
2409 			 * selection or the current window (might have false
2410 			 * negative here)
2411 			 */
2412 			if (mouse_row < W_WINROW(curwin)
2413 			     || mouse_row
2414 				      > (W_WINROW(curwin) + curwin->w_height))
2415 			    jump_flags = MOUSE_MAY_STOP_VIS;
2416 			else if (get_fpos_of_mouse(&m_pos) != IN_BUFFER)
2417 			    jump_flags = MOUSE_MAY_STOP_VIS;
2418 			else
2419 			{
2420 			    if ((lt(curwin->w_cursor, VIsual)
2421 					&& (lt(m_pos, curwin->w_cursor)
2422 					    || lt(VIsual, m_pos)))
2423 				    || (lt(VIsual, curwin->w_cursor)
2424 					&& (lt(m_pos, VIsual)
2425 					    || lt(curwin->w_cursor, m_pos))))
2426 			    {
2427 				jump_flags = MOUSE_MAY_STOP_VIS;
2428 			    }
2429 			    else if (VIsual_mode == Ctrl_V)
2430 			    {
2431 				getvcols(curwin, &curwin->w_cursor, &VIsual,
2432 							 &leftcol, &rightcol);
2433 				getvcol(curwin, &m_pos, NULL, &m_pos.col, NULL);
2434 				if (m_pos.col < leftcol || m_pos.col > rightcol)
2435 				    jump_flags = MOUSE_MAY_STOP_VIS;
2436 			    }
2437 			}
2438 		    }
2439 		    else
2440 			jump_flags = MOUSE_MAY_STOP_VIS;
2441 #endif
2442 		}
2443 		if (jump_flags)
2444 		{
2445 		    jump_flags = jump_to_mouse(jump_flags, NULL, which_button);
2446 		    update_curbuf(
2447 #ifdef FEAT_VISUAL
2448 			    VIsual_active ? INVERTED :
2449 #endif
2450 			    VALID);
2451 		    setcursor();
2452 		    out_flush();    /* Update before showing popup menu */
2453 		}
2454 # ifdef FEAT_MENU
2455 		gui_show_popupmenu();
2456 # endif
2457 		return (jump_flags & CURSOR_MOVED) != 0;
2458 	    }
2459 	    else
2460 		return FALSE;
2461 #else
2462 	    return FALSE;
2463 #endif
2464 	}
2465 	if (which_button == MOUSE_LEFT && (mod_mask & MOD_MASK_SHIFT))
2466 	{
2467 	    which_button = MOUSE_RIGHT;
2468 	    mod_mask &= ~MOD_MASK_SHIFT;
2469 	}
2470     }
2471 
2472 #ifdef FEAT_VISUAL
2473     if ((State & (NORMAL | INSERT))
2474 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2475     {
2476 	if (which_button == MOUSE_LEFT)
2477 	{
2478 	    if (is_click)
2479 	    {
2480 		/* stop Visual mode for a left click in a window, but not when
2481 		 * on a status line */
2482 		if (VIsual_active)
2483 		    jump_flags |= MOUSE_MAY_STOP_VIS;
2484 	    }
2485 	    else if (mouse_has(MOUSE_VISUAL))
2486 		jump_flags |= MOUSE_MAY_VIS;
2487 	}
2488 	else if (which_button == MOUSE_RIGHT)
2489 	{
2490 	    if (is_click && VIsual_active)
2491 	    {
2492 		/*
2493 		 * Remember the start and end of visual before moving the
2494 		 * cursor.
2495 		 */
2496 		if (lt(curwin->w_cursor, VIsual))
2497 		{
2498 		    start_visual = curwin->w_cursor;
2499 		    end_visual = VIsual;
2500 		}
2501 		else
2502 		{
2503 		    start_visual = VIsual;
2504 		    end_visual = curwin->w_cursor;
2505 		}
2506 	    }
2507 	    jump_flags |= MOUSE_FOCUS;
2508 	    if (mouse_has(MOUSE_VISUAL))
2509 		jump_flags |= MOUSE_MAY_VIS;
2510 	}
2511     }
2512 #endif
2513 
2514     /*
2515      * If an operator is pending, ignore all drags and releases until the
2516      * next mouse click.
2517      */
2518     if (!is_drag && oap != NULL && oap->op_type != OP_NOP)
2519     {
2520 	got_click = FALSE;
2521 	oap->motion_type = MCHAR;
2522     }
2523 
2524     /* When releasing the button let jump_to_mouse() know. */
2525     if (!is_click && !is_drag)
2526 	jump_flags |= MOUSE_RELEASED;
2527 
2528     /*
2529      * JUMP!
2530      */
2531     jump_flags = jump_to_mouse(jump_flags,
2532 			oap == NULL ? NULL : &(oap->inclusive), which_button);
2533     moved = (jump_flags & CURSOR_MOVED);
2534     in_status_line = (jump_flags & IN_STATUS_LINE);
2535 #ifdef FEAT_VERTSPLIT
2536     in_sep_line = (jump_flags & IN_SEP_LINE);
2537 #endif
2538 
2539 #ifdef FEAT_NETBEANS_INTG
2540     if (usingNetbeans && isNetbeansBuffer(curbuf)
2541 			    && !(jump_flags & (IN_STATUS_LINE | IN_SEP_LINE)))
2542     {
2543 	int key = KEY2TERMCAP1(c);
2544 
2545 	if (key == (int)KE_LEFTRELEASE || key == (int)KE_MIDDLERELEASE
2546 					       || key == (int)KE_RIGHTRELEASE)
2547 	    netbeans_button_release(which_button);
2548     }
2549 #endif
2550 
2551     /* When jumping to another window, clear a pending operator.  That's a bit
2552      * friendlier than beeping and not jumping to that window. */
2553     if (curwin != old_curwin && oap != NULL && oap->op_type != OP_NOP)
2554 	clearop(oap);
2555 
2556 #ifdef FEAT_FOLDING
2557     if (mod_mask == 0
2558 	    && !is_drag
2559 	    && (jump_flags & (MOUSE_FOLD_CLOSE | MOUSE_FOLD_OPEN))
2560 	    && which_button == MOUSE_LEFT)
2561     {
2562 	/* open or close a fold at this line */
2563 	if (jump_flags & MOUSE_FOLD_OPEN)
2564 	    openFold(curwin->w_cursor.lnum, 1L);
2565 	else
2566 	    closeFold(curwin->w_cursor.lnum, 1L);
2567 	/* don't move the cursor if still in the same window */
2568 	if (curwin == old_curwin)
2569 	    curwin->w_cursor = save_cursor;
2570     }
2571 #endif
2572 
2573 #if defined(FEAT_CLIPBOARD) && defined(FEAT_CMDWIN)
2574     if ((jump_flags & IN_OTHER_WIN) && !VIsual_active && clip_star.available)
2575     {
2576 	clip_modeless(which_button, is_click, is_drag);
2577 	return FALSE;
2578     }
2579 #endif
2580 
2581 #ifdef FEAT_VISUAL
2582     /* Set global flag that we are extending the Visual area with mouse
2583      * dragging; temporarily mimimize 'scrolloff'. */
2584     if (VIsual_active && is_drag && p_so)
2585     {
2586 	/* In the very first line, allow scrolling one line */
2587 	if (mouse_row == 0)
2588 	    mouse_dragging = 2;
2589 	else
2590 	    mouse_dragging = 1;
2591     }
2592 
2593     /* When dragging the mouse above the window, scroll down. */
2594     if (is_drag && mouse_row < 0 && !in_status_line)
2595     {
2596 	scroll_redraw(FALSE, 1L);
2597 	mouse_row = 0;
2598     }
2599 
2600     if (start_visual.lnum)		/* right click in visual mode */
2601     {
2602 	/*
2603 	 * In Visual-block mode, divide the area in four, pick up the corner
2604 	 * that is in the quarter that the cursor is in.
2605 	 */
2606 	if (VIsual_mode == Ctrl_V)
2607 	{
2608 	    getvcols(curwin, &start_visual, &end_visual, &leftcol, &rightcol);
2609 	    if (curwin->w_curswant > (leftcol + rightcol) / 2)
2610 		end_visual.col = leftcol;
2611 	    else
2612 		end_visual.col = rightcol;
2613 	    if (curwin->w_cursor.lnum <
2614 				    (start_visual.lnum + end_visual.lnum) / 2)
2615 		end_visual.lnum = end_visual.lnum;
2616 	    else
2617 		end_visual.lnum = start_visual.lnum;
2618 
2619 	    /* move VIsual to the right column */
2620 	    start_visual = curwin->w_cursor;	    /* save the cursor pos */
2621 	    curwin->w_cursor = end_visual;
2622 	    coladvance(end_visual.col);
2623 	    VIsual = curwin->w_cursor;
2624 	    curwin->w_cursor = start_visual;	    /* restore the cursor */
2625 	}
2626 	else
2627 	{
2628 	    /*
2629 	     * If the click is before the start of visual, change the start.
2630 	     * If the click is after the end of visual, change the end.  If
2631 	     * the click is inside the visual, change the closest side.
2632 	     */
2633 	    if (lt(curwin->w_cursor, start_visual))
2634 		VIsual = end_visual;
2635 	    else if (lt(end_visual, curwin->w_cursor))
2636 		VIsual = start_visual;
2637 	    else
2638 	    {
2639 		/* In the same line, compare column number */
2640 		if (end_visual.lnum == start_visual.lnum)
2641 		{
2642 		    if (curwin->w_cursor.col - start_visual.col >
2643 				    end_visual.col - curwin->w_cursor.col)
2644 			VIsual = start_visual;
2645 		    else
2646 			VIsual = end_visual;
2647 		}
2648 
2649 		/* In different lines, compare line number */
2650 		else
2651 		{
2652 		    diff = (curwin->w_cursor.lnum - start_visual.lnum) -
2653 				(end_visual.lnum - curwin->w_cursor.lnum);
2654 
2655 		    if (diff > 0)		/* closest to end */
2656 			VIsual = start_visual;
2657 		    else if (diff < 0)	/* closest to start */
2658 			VIsual = end_visual;
2659 		    else			/* in the middle line */
2660 		    {
2661 			if (curwin->w_cursor.col <
2662 					(start_visual.col + end_visual.col) / 2)
2663 			    VIsual = end_visual;
2664 			else
2665 			    VIsual = start_visual;
2666 		    }
2667 		}
2668 	    }
2669 	}
2670     }
2671     /*
2672      * If Visual mode started in insert mode, execute "CTRL-O"
2673      */
2674     else if ((State & INSERT) && VIsual_active)
2675 	stuffcharReadbuff(Ctrl_O);
2676 #endif
2677 
2678     /*
2679      * Middle mouse click: Put text before cursor.
2680      */
2681     if (which_button == MOUSE_MIDDLE)
2682     {
2683 #ifdef FEAT_CLIPBOARD
2684 	if (clip_star.available && regname == 0)
2685 	    regname = '*';
2686 #endif
2687 	if (yank_register_mline(regname))
2688 	{
2689 	    if (mouse_past_bottom)
2690 		dir = FORWARD;
2691 	}
2692 	else if (mouse_past_eol)
2693 	    dir = FORWARD;
2694 
2695 	if (fixindent)
2696 	{
2697 	    c1 = (dir == BACKWARD) ? '[' : ']';
2698 	    c2 = 'p';
2699 	}
2700 	else
2701 	{
2702 	    c1 = (dir == FORWARD) ? 'p' : 'P';
2703 	    c2 = NUL;
2704 	}
2705 	prep_redo(regname, count, NUL, c1, NUL, c2, NUL);
2706 
2707 	/*
2708 	 * Remember where the paste started, so in edit() Insstart can be set
2709 	 * to this position
2710 	 */
2711 	if (restart_edit != 0)
2712 	    where_paste_started = curwin->w_cursor;
2713 	do_put(regname, dir, count, fixindent | PUT_CURSEND);
2714     }
2715 
2716 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2717     /*
2718      * Ctrl-Mouse click or double click in a quickfix window jumps to the
2719      * error under the mouse pointer.
2720      */
2721     else if (((mod_mask & MOD_MASK_CTRL)
2722 		|| (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2723 	    && bt_quickfix(curbuf))
2724     {
2725 	if (State & INSERT)
2726 	    stuffcharReadbuff(Ctrl_O);
2727 	stuffReadbuff((char_u *)":.cc\n");
2728 	got_click = FALSE;		/* ignore drag&release now */
2729     }
2730 #endif
2731 
2732     /*
2733      * Ctrl-Mouse click (or double click in a help window) jumps to the tag
2734      * under the mouse pointer.
2735      */
2736     else if ((mod_mask & MOD_MASK_CTRL) || (curbuf->b_help
2737 		     && (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK))
2738     {
2739 	if (State & INSERT)
2740 	    stuffcharReadbuff(Ctrl_O);
2741 	stuffcharReadbuff(Ctrl_RSB);
2742 	got_click = FALSE;		/* ignore drag&release now */
2743     }
2744 
2745     /*
2746      * Shift-Mouse click searches for the next occurrence of the word under
2747      * the mouse pointer
2748      */
2749     else if ((mod_mask & MOD_MASK_SHIFT))
2750     {
2751 	if (State & INSERT
2752 #ifdef FEAT_VISUAL
2753 		|| (VIsual_active && VIsual_select)
2754 #endif
2755 		)
2756 	    stuffcharReadbuff(Ctrl_O);
2757 	if (which_button == MOUSE_LEFT)
2758 	    stuffcharReadbuff('*');
2759 	else	/* MOUSE_RIGHT */
2760 	    stuffcharReadbuff('#');
2761     }
2762 
2763     /* Handle double clicks, unless on status line */
2764     else if (in_status_line)
2765     {
2766 #ifdef FEAT_MOUSESHAPE
2767 	if ((is_drag || is_click) && !drag_status_line)
2768 	{
2769 	    drag_status_line = TRUE;
2770 	    update_mouseshape(-1);
2771 	}
2772 #endif
2773     }
2774 #ifdef FEAT_VERTSPLIT
2775     else if (in_sep_line)
2776     {
2777 # ifdef FEAT_MOUSESHAPE
2778 	if ((is_drag || is_click) && !drag_sep_line)
2779 	{
2780 	    drag_sep_line = TRUE;
2781 	    update_mouseshape(-1);
2782 	}
2783 # endif
2784     }
2785 #endif
2786 #ifdef FEAT_VISUAL
2787     else if ((mod_mask & MOD_MASK_MULTI_CLICK) && (State & (NORMAL | INSERT))
2788 	     && mouse_has(MOUSE_VISUAL))
2789     {
2790 	if (is_click || !VIsual_active)
2791 	{
2792 	    if (VIsual_active)
2793 		orig_cursor = VIsual;
2794 	    else
2795 	    {
2796 		check_visual_highlight();
2797 		VIsual = curwin->w_cursor;
2798 		orig_cursor = VIsual;
2799 		VIsual_active = TRUE;
2800 		VIsual_reselect = TRUE;
2801 		/* start Select mode if 'selectmode' contains "mouse" */
2802 		may_start_select('o');
2803 		setmouse();
2804 	    }
2805 	    if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2806 		VIsual_mode = 'v';
2807 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_3CLICK)
2808 		VIsual_mode = 'V';
2809 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_4CLICK)
2810 		VIsual_mode = Ctrl_V;
2811 #ifdef FEAT_CLIPBOARD
2812 	    /* Make sure the clipboard gets updated.  Needed because start and
2813 	     * end may still be the same, and the selection needs to be owned */
2814 	    clip_star.vmode = NUL;
2815 #endif
2816 	}
2817 	/*
2818 	 * A double click selects a word or a block.
2819 	 */
2820 	if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2821 	{
2822 	    pos_T	*pos = NULL;
2823 	    int		gc;
2824 
2825 	    if (is_click)
2826 	    {
2827 		/* If the character under the cursor (skipping white space) is
2828 		 * not a word character, try finding a match and select a (),
2829 		 * {}, [], #if/#endif, etc. block. */
2830 		end_visual = curwin->w_cursor;
2831 		while (gc = gchar_pos(&end_visual), vim_iswhite(gc))
2832 		    inc(&end_visual);
2833 		if (oap != NULL)
2834 		    oap->motion_type = MCHAR;
2835 		if (oap != NULL
2836 			&& VIsual_mode == 'v'
2837 			&& !vim_iswordc(gchar_pos(&end_visual))
2838 			&& equalpos(curwin->w_cursor, VIsual)
2839 			&& (pos = findmatch(oap, NUL)) != NULL)
2840 		{
2841 		    curwin->w_cursor = *pos;
2842 		    if (oap->motion_type == MLINE)
2843 			VIsual_mode = 'V';
2844 		    else if (*p_sel == 'e')
2845 		    {
2846 			if (lt(curwin->w_cursor, VIsual))
2847 			    ++VIsual.col;
2848 			else
2849 			    ++curwin->w_cursor.col;
2850 		    }
2851 		}
2852 	    }
2853 
2854 	    if (pos == NULL && (is_click || is_drag))
2855 	    {
2856 		/* When not found a match or when dragging: extend to include
2857 		 * a word. */
2858 		if (lt(curwin->w_cursor, orig_cursor))
2859 		{
2860 		    find_start_of_word(&curwin->w_cursor);
2861 		    find_end_of_word(&VIsual);
2862 		}
2863 		else
2864 		{
2865 		    find_start_of_word(&VIsual);
2866 		    if (*p_sel == 'e' && *ml_get_cursor() != NUL)
2867 #ifdef FEAT_MBYTE
2868 			curwin->w_cursor.col +=
2869 					 (*mb_ptr2len)(ml_get_cursor());
2870 #else
2871 			++curwin->w_cursor.col;
2872 #endif
2873 		    find_end_of_word(&curwin->w_cursor);
2874 		}
2875 	    }
2876 	    curwin->w_set_curswant = TRUE;
2877 	}
2878 	if (is_click)
2879 	    redraw_curbuf_later(INVERTED);	/* update the inversion */
2880     }
2881     else if (VIsual_active && !old_active)
2882 	VIsual_mode = 'v';
2883 
2884     /* If Visual mode changed show it later. */
2885     if (p_smd && (VIsual_active != old_active || VIsual_mode != old_mode))
2886 	redraw_cmdline = TRUE;
2887 #endif
2888 
2889     return moved;
2890 }
2891 
2892 #ifdef FEAT_VISUAL
2893 /*
2894  * Move "pos" back to the start of the word it's in.
2895  */
2896     static void
2897 find_start_of_word(pos)
2898     pos_T	*pos;
2899 {
2900     char_u	*line;
2901     int		cclass;
2902     int		col;
2903 
2904     line = ml_get(pos->lnum);
2905     cclass = get_mouse_class(line + pos->col);
2906 
2907     while (pos->col > 0)
2908     {
2909 	col = pos->col - 1;
2910 #ifdef FEAT_MBYTE
2911 	col -= (*mb_head_off)(line, line + col);
2912 #endif
2913 	if (get_mouse_class(line + col) != cclass)
2914 	    break;
2915 	pos->col = col;
2916     }
2917 }
2918 
2919 /*
2920  * Move "pos" forward to the end of the word it's in.
2921  * When 'selection' is "exclusive", the position is just after the word.
2922  */
2923     static void
2924 find_end_of_word(pos)
2925     pos_T	*pos;
2926 {
2927     char_u	*line;
2928     int		cclass;
2929     int		col;
2930 
2931     line = ml_get(pos->lnum);
2932     if (*p_sel == 'e' && pos->col > 0)
2933     {
2934 	--pos->col;
2935 #ifdef FEAT_MBYTE
2936 	pos->col -= (*mb_head_off)(line, line + pos->col);
2937 #endif
2938     }
2939     cclass = get_mouse_class(line + pos->col);
2940     while (line[pos->col] != NUL)
2941     {
2942 #ifdef FEAT_MBYTE
2943 	col = pos->col + (*mb_ptr2len)(line + pos->col);
2944 #else
2945 	col = pos->col + 1;
2946 #endif
2947 	if (get_mouse_class(line + col) != cclass)
2948 	{
2949 	    if (*p_sel == 'e')
2950 		pos->col = col;
2951 	    break;
2952 	}
2953 	pos->col = col;
2954     }
2955 }
2956 
2957 /*
2958  * Get class of a character for selection: same class means same word.
2959  * 0: blank
2960  * 1: punctuation groups
2961  * 2: normal word character
2962  * >2: multi-byte word character.
2963  */
2964     static int
2965 get_mouse_class(p)
2966     char_u	*p;
2967 {
2968     int		c;
2969 
2970 #ifdef FEAT_MBYTE
2971     if (has_mbyte && MB_BYTE2LEN(p[0]) > 1)
2972 	return mb_get_class(p);
2973 #endif
2974 
2975     c = *p;
2976     if (c == ' ' || c == '\t')
2977 	return 0;
2978 
2979     if (vim_iswordc(c))
2980 	return 2;
2981 
2982     /*
2983      * There are a few special cases where we want certain combinations of
2984      * characters to be considered as a single word.  These are things like
2985      * "->", "/ *", "*=", "+=", "&=", "<=", ">=", "!=" etc.  Otherwise, each
2986      * character is in it's own class.
2987      */
2988     if (c != NUL && vim_strchr((char_u *)"-+*/%<>&|^!=", c) != NULL)
2989 	return 1;
2990     return c;
2991 }
2992 #endif /* FEAT_VISUAL */
2993 #endif /* FEAT_MOUSE */
2994 
2995 #if defined(FEAT_VISUAL) || defined(PROTO)
2996 /*
2997  * Check if  highlighting for visual mode is possible, give a warning message
2998  * if not.
2999  */
3000     void
3001 check_visual_highlight()
3002 {
3003     static int	    did_check = FALSE;
3004 
3005     if (full_screen)
3006     {
3007 	if (!did_check && hl_attr(HLF_V) == 0)
3008 	    MSG(_("Warning: terminal cannot highlight"));
3009 	did_check = TRUE;
3010     }
3011 }
3012 
3013 /*
3014  * End visual mode.
3015  * This function should ALWAYS be called to end Visual mode, except from
3016  * do_pending_operator().
3017  */
3018     void
3019 end_visual_mode()
3020 {
3021 #ifdef FEAT_CLIPBOARD
3022     /*
3023      * If we are using the clipboard, then remember what was selected in case
3024      * we need to paste it somewhere while we still own the selection.
3025      * Only do this when the clipboard is already owned.  Don't want to grab
3026      * the selection when hitting ESC.
3027      */
3028     if (clip_star.available && clip_star.owned)
3029 	clip_auto_select();
3030 #endif
3031 
3032     VIsual_active = FALSE;
3033 #ifdef FEAT_MOUSE
3034     setmouse();
3035     mouse_dragging = 0;
3036 #endif
3037 
3038     /* Save the current VIsual area for '< and '> marks, and "gv" */
3039     curbuf->b_visual_mode = VIsual_mode;
3040 #ifdef FEAT_EVAL
3041     curbuf->b_visual_mode_eval = VIsual_mode;
3042 #endif
3043     curbuf->b_visual_start = VIsual;
3044     curbuf->b_visual_end = curwin->w_cursor;
3045     curbuf->b_visual_curswant = curwin->w_curswant;
3046 #ifdef FEAT_VIRTUALEDIT
3047     if (!virtual_active())
3048 	curwin->w_cursor.coladd = 0;
3049 #endif
3050 
3051     if (p_smd)
3052 	clear_cmdline = TRUE;		/* unshow visual mode later */
3053 #ifdef FEAT_CMDL_INFO
3054     else
3055 	clear_showcmd();
3056 #endif
3057 
3058     /* Don't leave the cursor past the end of the line */
3059     if (curwin->w_cursor.col > 0 && *ml_get_cursor() == NUL)
3060 	--curwin->w_cursor.col;
3061 }
3062 
3063 /*
3064  * Reset VIsual_active and VIsual_reselect.
3065  */
3066     void
3067 reset_VIsual_and_resel()
3068 {
3069     if (VIsual_active)
3070     {
3071 	end_visual_mode();
3072 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3073     }
3074     VIsual_reselect = FALSE;
3075 }
3076 
3077 /*
3078  * Reset VIsual_active and VIsual_reselect if it's set.
3079  */
3080     void
3081 reset_VIsual()
3082 {
3083     if (VIsual_active)
3084     {
3085 	end_visual_mode();
3086 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3087 	VIsual_reselect = FALSE;
3088     }
3089 }
3090 #endif /* FEAT_VISUAL */
3091 
3092 #if defined(FEAT_BEVAL)
3093 static int find_is_eval_item __ARGS((char_u *ptr, int *colp, int *nbp, int dir));
3094 
3095 /*
3096  * Check for a balloon-eval special item to include when searching for an
3097  * identifier.  When "dir" is BACKWARD "ptr[-1]" must be valid!
3098  * Returns TRUE if the character at "*ptr" should be included.
3099  * "dir" is FORWARD or BACKWARD, the direction of searching.
3100  * "*colp" is in/decremented if "ptr[-dir]" should also be included.
3101  * "bnp" points to a counter for square brackets.
3102  */
3103     static int
3104 find_is_eval_item(ptr, colp, bnp, dir)
3105     char_u	*ptr;
3106     int		*colp;
3107     int		*bnp;
3108     int		dir;
3109 {
3110     /* Accept everything inside []. */
3111     if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD))
3112 	++*bnp;
3113     if (*bnp > 0)
3114     {
3115 	if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD))
3116 	    --*bnp;
3117 	return TRUE;
3118     }
3119 
3120     /* skip over "s.var" */
3121     if (*ptr == '.')
3122 	return TRUE;
3123 
3124     /* two-character item: s->var */
3125     if (ptr[dir == BACKWARD ? 0 : 1] == '>'
3126 	    && ptr[dir == BACKWARD ? -1 : 0] == '-')
3127     {
3128 	*colp += dir;
3129 	return TRUE;
3130     }
3131     return FALSE;
3132 }
3133 #endif
3134 
3135 /*
3136  * Find the identifier under or to the right of the cursor.
3137  * "find_type" can have one of three values:
3138  * FIND_IDENT:   find an identifier (keyword)
3139  * FIND_STRING:  find any non-white string
3140  * FIND_IDENT + FIND_STRING: find any non-white string, identifier preferred.
3141  * FIND_EVAL:	 find text useful for C program debugging
3142  *
3143  * There are three steps:
3144  * 1. Search forward for the start of an identifier/string.  Doesn't move if
3145  *    already on one.
3146  * 2. Search backward for the start of this identifier/string.
3147  *    This doesn't match the real Vi but I like it a little better and it
3148  *    shouldn't bother anyone.
3149  * 3. Search forward to the end of this identifier/string.
3150  *    When FIND_IDENT isn't defined, we backup until a blank.
3151  *
3152  * Returns the length of the string, or zero if no string is found.
3153  * If a string is found, a pointer to the string is put in "*string".  This
3154  * string is not always NUL terminated.
3155  */
3156     int
3157 find_ident_under_cursor(string, find_type)
3158     char_u	**string;
3159     int		find_type;
3160 {
3161     return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
3162 				     curwin->w_cursor.col, string, find_type);
3163 }
3164 
3165 /*
3166  * Like find_ident_under_cursor(), but for any window and any position.
3167  * However: Uses 'iskeyword' from the current window!.
3168  */
3169     int
3170 find_ident_at_pos(wp, lnum, startcol, string, find_type)
3171     win_T	*wp;
3172     linenr_T	lnum;
3173     colnr_T	startcol;
3174     char_u	**string;
3175     int		find_type;
3176 {
3177     char_u	*ptr;
3178     int		col = 0;	    /* init to shut up GCC */
3179     int		i;
3180 #ifdef FEAT_MBYTE
3181     int		this_class = 0;
3182     int		prev_class;
3183     int		prevcol;
3184 #endif
3185 #if defined(FEAT_BEVAL)
3186     int		bn = 0;	    /* bracket nesting */
3187 #endif
3188 
3189     /*
3190      * if i == 0: try to find an identifier
3191      * if i == 1: try to find any non-white string
3192      */
3193     ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
3194     for (i = (find_type & FIND_IDENT) ? 0 : 1;	i < 2; ++i)
3195     {
3196 	/*
3197 	 * 1. skip to start of identifier/string
3198 	 */
3199 	col = startcol;
3200 #ifdef FEAT_MBYTE
3201 	if (has_mbyte)
3202 	{
3203 	    while (ptr[col] != NUL)
3204 	    {
3205 # if defined(FEAT_BEVAL)
3206 		/* Stop at a ']' to evaluate "a[x]". */
3207 		if ((find_type & FIND_EVAL) && ptr[col] == ']')
3208 		    break;
3209 # endif
3210 		this_class = mb_get_class(ptr + col);
3211 		if (this_class != 0 && (i == 1 || this_class != 1))
3212 		    break;
3213 		col += (*mb_ptr2len)(ptr + col);
3214 	    }
3215 	}
3216 	else
3217 #endif
3218 	    while (ptr[col] != NUL
3219 		    && (i == 0 ? !vim_iswordc(ptr[col]) : vim_iswhite(ptr[col]))
3220 # if defined(FEAT_BEVAL)
3221 		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
3222 # endif
3223 		    )
3224 		++col;
3225 
3226 #if defined(FEAT_BEVAL)
3227 	/* When starting on a ']' count it, so that we include the '['. */
3228 	bn = ptr[col] == ']';
3229 #endif
3230 
3231 	/*
3232 	 * 2. Back up to start of identifier/string.
3233 	 */
3234 #ifdef FEAT_MBYTE
3235 	if (has_mbyte)
3236 	{
3237 	    /* Remember class of character under cursor. */
3238 # if defined(FEAT_BEVAL)
3239 	    if ((find_type & FIND_EVAL) && ptr[col] == ']')
3240 		this_class = mb_get_class((char_u *)"a");
3241 	    else
3242 # endif
3243 		this_class = mb_get_class(ptr + col);
3244 	    while (col > 0)
3245 	    {
3246 		prevcol = col - 1 - (*mb_head_off)(ptr, ptr + col - 1);
3247 		prev_class = mb_get_class(ptr + prevcol);
3248 		if (this_class != prev_class
3249 			&& (i == 0
3250 			    || prev_class == 0
3251 			    || (find_type & FIND_IDENT))
3252 # if defined(FEAT_BEVAL)
3253 			&& (!(find_type & FIND_EVAL)
3254 			    || prevcol == 0
3255 			    || !find_is_eval_item(ptr + prevcol, &prevcol,
3256 							       &bn, BACKWARD))
3257 # endif
3258 			)
3259 		    break;
3260 		col = prevcol;
3261 	    }
3262 
3263 	    /* If we don't want just any old string, or we've found an
3264 	     * identifier, stop searching. */
3265 	    if (this_class > 2)
3266 		this_class = 2;
3267 	    if (!(find_type & FIND_STRING) || this_class == 2)
3268 		break;
3269 	}
3270 	else
3271 #endif
3272 	{
3273 	    while (col > 0
3274 		    && ((i == 0
3275 			    ? vim_iswordc(ptr[col - 1])
3276 			    : (!vim_iswhite(ptr[col - 1])
3277 				&& (!(find_type & FIND_IDENT)
3278 				    || !vim_iswordc(ptr[col - 1]))))
3279 #if defined(FEAT_BEVAL)
3280 			|| ((find_type & FIND_EVAL)
3281 			    && col > 1
3282 			    && find_is_eval_item(ptr + col - 1, &col,
3283 							       &bn, BACKWARD))
3284 #endif
3285 			))
3286 		--col;
3287 
3288 	    /* If we don't want just any old string, or we've found an
3289 	     * identifier, stop searching. */
3290 	    if (!(find_type & FIND_STRING) || vim_iswordc(ptr[col]))
3291 		break;
3292 	}
3293     }
3294 
3295     if (ptr[col] == NUL || (i == 0 && (
3296 #ifdef FEAT_MBYTE
3297 		has_mbyte ? this_class != 2 :
3298 #endif
3299 		!vim_iswordc(ptr[col]))))
3300     {
3301 	/*
3302 	 * didn't find an identifier or string
3303 	 */
3304 	if (find_type & FIND_STRING)
3305 	    EMSG(_("E348: No string under cursor"));
3306 	else
3307 	    EMSG(_("E349: No identifier under cursor"));
3308 	return 0;
3309     }
3310     ptr += col;
3311     *string = ptr;
3312 
3313     /*
3314      * 3. Find the end if the identifier/string.
3315      */
3316 #if defined(FEAT_BEVAL)
3317     bn = 0;
3318     startcol -= col;
3319 #endif
3320     col = 0;
3321 #ifdef FEAT_MBYTE
3322     if (has_mbyte)
3323     {
3324 	/* Search for point of changing multibyte character class. */
3325 	this_class = mb_get_class(ptr);
3326 	while (ptr[col] != NUL
3327 		&& ((i == 0 ? mb_get_class(ptr + col) == this_class
3328 			    : mb_get_class(ptr + col) != 0)
3329 # if defined(FEAT_BEVAL)
3330 		    || ((find_type & FIND_EVAL)
3331 			&& col <= (int)startcol
3332 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3333 # endif
3334 		))
3335 	    col += (*mb_ptr2len)(ptr + col);
3336     }
3337     else
3338 #endif
3339 	while ((i == 0 ? vim_iswordc(ptr[col])
3340 		       : (ptr[col] != NUL && !vim_iswhite(ptr[col])))
3341 # if defined(FEAT_BEVAL)
3342 		    || ((find_type & FIND_EVAL)
3343 			&& col <= (int)startcol
3344 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3345 # endif
3346 		)
3347 	{
3348 	    ++col;
3349 	}
3350 
3351     return col;
3352 }
3353 
3354 /*
3355  * Prepare for redo of a normal command.
3356  */
3357     static void
3358 prep_redo_cmd(cap)
3359     cmdarg_T  *cap;
3360 {
3361     prep_redo(cap->oap->regname, cap->count0,
3362 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
3363 }
3364 
3365 /*
3366  * Prepare for redo of any command.
3367  * Note that only the last argument can be a multi-byte char.
3368  */
3369     static void
3370 prep_redo(regname, num, cmd1, cmd2, cmd3, cmd4, cmd5)
3371     int	    regname;
3372     long    num;
3373     int	    cmd1;
3374     int	    cmd2;
3375     int	    cmd3;
3376     int	    cmd4;
3377     int	    cmd5;
3378 {
3379     ResetRedobuff();
3380     if (regname != 0)	/* yank from specified buffer */
3381     {
3382 	AppendCharToRedobuff('"');
3383 	AppendCharToRedobuff(regname);
3384     }
3385     if (num)
3386 	AppendNumberToRedobuff(num);
3387 
3388     if (cmd1 != NUL)
3389 	AppendCharToRedobuff(cmd1);
3390     if (cmd2 != NUL)
3391 	AppendCharToRedobuff(cmd2);
3392     if (cmd3 != NUL)
3393 	AppendCharToRedobuff(cmd3);
3394     if (cmd4 != NUL)
3395 	AppendCharToRedobuff(cmd4);
3396     if (cmd5 != NUL)
3397 	AppendCharToRedobuff(cmd5);
3398 }
3399 
3400 /*
3401  * check for operator active and clear it
3402  *
3403  * return TRUE if operator was active
3404  */
3405     static int
3406 checkclearop(oap)
3407     oparg_T	*oap;
3408 {
3409     if (oap->op_type == OP_NOP)
3410 	return FALSE;
3411     clearopbeep(oap);
3412     return TRUE;
3413 }
3414 
3415 /*
3416  * check for operator or Visual active and clear it
3417  *
3418  * return TRUE if operator was active
3419  */
3420     static int
3421 checkclearopq(oap)
3422     oparg_T	*oap;
3423 {
3424     if (oap->op_type == OP_NOP
3425 #ifdef FEAT_VISUAL
3426 	    && !VIsual_active
3427 #endif
3428 	    )
3429 	return FALSE;
3430     clearopbeep(oap);
3431     return TRUE;
3432 }
3433 
3434     static void
3435 clearop(oap)
3436     oparg_T	*oap;
3437 {
3438     oap->op_type = OP_NOP;
3439     oap->regname = 0;
3440     oap->motion_force = NUL;
3441     oap->use_reg_one = FALSE;
3442 }
3443 
3444     static void
3445 clearopbeep(oap)
3446     oparg_T	*oap;
3447 {
3448     clearop(oap);
3449     beep_flush();
3450 }
3451 
3452 #ifdef FEAT_VISUAL
3453 /*
3454  * Remove the shift modifier from a special key.
3455  */
3456     static void
3457 unshift_special(cap)
3458     cmdarg_T	*cap;
3459 {
3460     switch (cap->cmdchar)
3461     {
3462 	case K_S_RIGHT:	cap->cmdchar = K_RIGHT; break;
3463 	case K_S_LEFT:	cap->cmdchar = K_LEFT; break;
3464 	case K_S_UP:	cap->cmdchar = K_UP; break;
3465 	case K_S_DOWN:	cap->cmdchar = K_DOWN; break;
3466 	case K_S_HOME:	cap->cmdchar = K_HOME; break;
3467 	case K_S_END:	cap->cmdchar = K_END; break;
3468     }
3469     cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
3470 }
3471 #endif
3472 
3473 #if defined(FEAT_CMDL_INFO) || defined(PROTO)
3474 /*
3475  * Routines for displaying a partly typed command
3476  */
3477 
3478 #ifdef FEAT_VISUAL	/* need room for size of Visual area */
3479 # define SHOWCMD_BUFLEN SHOWCMD_COLS + 1 + 30
3480 #else
3481 # define SHOWCMD_BUFLEN SHOWCMD_COLS + 1
3482 #endif
3483 static char_u	showcmd_buf[SHOWCMD_BUFLEN];
3484 static char_u	old_showcmd_buf[SHOWCMD_BUFLEN];  /* For push_showcmd() */
3485 static int	showcmd_is_clear = TRUE;
3486 static int	showcmd_visual = FALSE;
3487 
3488 static void display_showcmd __ARGS((void));
3489 
3490     void
3491 clear_showcmd()
3492 {
3493     if (!p_sc)
3494 	return;
3495 
3496 #ifdef FEAT_VISUAL
3497     if (VIsual_active && !char_avail())
3498     {
3499 	int		i = lt(VIsual, curwin->w_cursor);
3500 	long		lines;
3501 	colnr_T		leftcol, rightcol;
3502 	linenr_T	top, bot;
3503 
3504 	/* Show the size of the Visual area. */
3505 	if (i)
3506 	{
3507 	    top = VIsual.lnum;
3508 	    bot = curwin->w_cursor.lnum;
3509 	}
3510 	else
3511 	{
3512 	    top = curwin->w_cursor.lnum;
3513 	    bot = VIsual.lnum;
3514 	}
3515 # ifdef FEAT_FOLDING
3516 	/* Include closed folds as a whole. */
3517 	hasFolding(top, &top, NULL);
3518 	hasFolding(bot, NULL, &bot);
3519 # endif
3520 	lines = bot - top + 1;
3521 
3522 	if (VIsual_mode == Ctrl_V)
3523 	{
3524 	    getvcols(curwin, &curwin->w_cursor, &VIsual, &leftcol, &rightcol);
3525 	    sprintf((char *)showcmd_buf, "%ldx%ld", lines,
3526 					      (long)(rightcol - leftcol + 1));
3527 	}
3528 	else if (VIsual_mode == 'V' || VIsual.lnum != curwin->w_cursor.lnum)
3529 	    sprintf((char *)showcmd_buf, "%ld", lines);
3530 	else
3531 	    sprintf((char *)showcmd_buf, "%ld", (long)(i
3532 		    ? curwin->w_cursor.col - VIsual.col
3533 		    : VIsual.col - curwin->w_cursor.col) + (*p_sel != 'e'));
3534 	showcmd_buf[SHOWCMD_COLS] = NUL;	/* truncate */
3535 	showcmd_visual = TRUE;
3536     }
3537     else
3538 #endif
3539     {
3540 	showcmd_buf[0] = NUL;
3541 	showcmd_visual = FALSE;
3542 
3543 	/* Don't actually display something if there is nothing to clear. */
3544 	if (showcmd_is_clear)
3545 	    return;
3546     }
3547 
3548     display_showcmd();
3549 }
3550 
3551 /*
3552  * Add 'c' to string of shown command chars.
3553  * Return TRUE if output has been written (and setcursor() has been called).
3554  */
3555     int
3556 add_to_showcmd(c)
3557     int		c;
3558 {
3559     char_u	*p;
3560     int		old_len;
3561     int		extra_len;
3562     int		overflow;
3563 #if defined(FEAT_MOUSE)
3564     int		i;
3565     static int	ignore[] =
3566     {
3567 #ifdef FEAT_GUI
3568 	K_VER_SCROLLBAR, K_HOR_SCROLLBAR,
3569 	K_LEFTMOUSE_NM, K_LEFTRELEASE_NM,
3570 #endif
3571 	K_IGNORE,
3572 	K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE,
3573 	K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
3574 	K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
3575 	K_MOUSEDOWN, K_MOUSEUP,
3576 	K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
3577 	0
3578     };
3579 #endif
3580 
3581     if (!p_sc)
3582 	return FALSE;
3583 
3584     if (showcmd_visual)
3585     {
3586 	showcmd_buf[0] = NUL;
3587 	showcmd_visual = FALSE;
3588     }
3589 
3590 #if defined(FEAT_MOUSE)
3591     /* Ignore keys that are scrollbar updates and mouse clicks */
3592     if (IS_SPECIAL(c))
3593 	for (i = 0; ignore[i] != 0; ++i)
3594 	    if (ignore[i] == c)
3595 		return FALSE;
3596 #endif
3597 
3598     p = transchar(c);
3599     old_len = (int)STRLEN(showcmd_buf);
3600     extra_len = (int)STRLEN(p);
3601     overflow = old_len + extra_len - SHOWCMD_COLS;
3602     if (overflow > 0)
3603 	STRCPY(showcmd_buf, showcmd_buf + overflow);
3604     STRCAT(showcmd_buf, p);
3605 
3606     if (char_avail())
3607 	return FALSE;
3608 
3609     display_showcmd();
3610 
3611     return TRUE;
3612 }
3613 
3614     void
3615 add_to_showcmd_c(c)
3616     int		c;
3617 {
3618     if (!add_to_showcmd(c))
3619 	setcursor();
3620 }
3621 
3622 /*
3623  * Delete 'len' characters from the end of the shown command.
3624  */
3625     static void
3626 del_from_showcmd(len)
3627     int	    len;
3628 {
3629     int	    old_len;
3630 
3631     if (!p_sc)
3632 	return;
3633 
3634     old_len = (int)STRLEN(showcmd_buf);
3635     if (len > old_len)
3636 	len = old_len;
3637     showcmd_buf[old_len - len] = NUL;
3638 
3639     if (!char_avail())
3640 	display_showcmd();
3641 }
3642 
3643 /*
3644  * push_showcmd() and pop_showcmd() are used when waiting for the user to type
3645  * something and there is a partial mapping.
3646  */
3647     void
3648 push_showcmd()
3649 {
3650     if (p_sc)
3651 	STRCPY(old_showcmd_buf, showcmd_buf);
3652 }
3653 
3654     void
3655 pop_showcmd()
3656 {
3657     if (!p_sc)
3658 	return;
3659 
3660     STRCPY(showcmd_buf, old_showcmd_buf);
3661 
3662     display_showcmd();
3663 }
3664 
3665     static void
3666 display_showcmd()
3667 {
3668     int	    len;
3669 
3670     cursor_off();
3671 
3672     len = (int)STRLEN(showcmd_buf);
3673     if (len == 0)
3674 	showcmd_is_clear = TRUE;
3675     else
3676     {
3677 	screen_puts(showcmd_buf, (int)Rows - 1, sc_col, 0);
3678 	showcmd_is_clear = FALSE;
3679     }
3680 
3681     /*
3682      * clear the rest of an old message by outputing up to SHOWCMD_COLS spaces
3683      */
3684     screen_puts((char_u *)"          " + len, (int)Rows - 1, sc_col + len, 0);
3685 
3686     setcursor();	    /* put cursor back where it belongs */
3687 }
3688 #endif
3689 
3690 #ifdef FEAT_SCROLLBIND
3691 /*
3692  * When "check" is FALSE, prepare for commands that scroll the window.
3693  * When "check" is TRUE, take care of scroll-binding after the window has
3694  * scrolled.  Called from normal_cmd() and edit().
3695  */
3696     void
3697 do_check_scrollbind(check)
3698     int		check;
3699 {
3700     static win_T	*old_curwin = NULL;
3701     static linenr_T	old_topline = 0;
3702 #ifdef FEAT_DIFF
3703     static int		old_topfill = 0;
3704 #endif
3705     static buf_T	*old_buf = NULL;
3706     static colnr_T	old_leftcol = 0;
3707 
3708     if (check && curwin->w_p_scb)
3709     {
3710 	/* If a ":syncbind" command was just used, don't scroll, only reset
3711 	 * the values. */
3712 	if (did_syncbind)
3713 	    did_syncbind = FALSE;
3714 	else if (curwin == old_curwin)
3715 	{
3716 	    /*
3717 	     * Synchronize other windows, as necessary according to
3718 	     * 'scrollbind'.  Don't do this after an ":edit" command, except
3719 	     * when 'diff' is set.
3720 	     */
3721 	    if ((curwin->w_buffer == old_buf
3722 #ifdef FEAT_DIFF
3723 			|| curwin->w_p_diff
3724 #endif
3725 		)
3726 		&& (curwin->w_topline != old_topline
3727 #ifdef FEAT_DIFF
3728 			|| curwin->w_topfill != old_topfill
3729 #endif
3730 			|| curwin->w_leftcol != old_leftcol))
3731 	    {
3732 		check_scrollbind(curwin->w_topline - old_topline,
3733 			(long)(curwin->w_leftcol - old_leftcol));
3734 	    }
3735 	}
3736 	else if (vim_strchr(p_sbo, 'j')) /* jump flag set in 'scrollopt' */
3737 	{
3738 	    /*
3739 	     * When switching between windows, make sure that the relative
3740 	     * vertical offset is valid for the new window.  The relative
3741 	     * offset is invalid whenever another 'scrollbind' window has
3742 	     * scrolled to a point that would force the current window to
3743 	     * scroll past the beginning or end of its buffer.  When the
3744 	     * resync is performed, some of the other 'scrollbind' windows may
3745 	     * need to jump so that the current window's relative position is
3746 	     * visible on-screen.
3747 	     */
3748 	    check_scrollbind(curwin->w_topline - curwin->w_scbind_pos, 0L);
3749 	}
3750 	curwin->w_scbind_pos = curwin->w_topline;
3751     }
3752 
3753     old_curwin = curwin;
3754     old_topline = curwin->w_topline;
3755 #ifdef FEAT_DIFF
3756     old_topfill = curwin->w_topfill;
3757 #endif
3758     old_buf = curwin->w_buffer;
3759     old_leftcol = curwin->w_leftcol;
3760 }
3761 
3762 /*
3763  * Synchronize any windows that have "scrollbind" set, based on the
3764  * number of rows by which the current window has changed
3765  * (1998-11-02 16:21:01  R. Edward Ralston <[email protected]>)
3766  */
3767     void
3768 check_scrollbind(topline_diff, leftcol_diff)
3769     linenr_T	topline_diff;
3770     long	leftcol_diff;
3771 {
3772     int		want_ver;
3773     int		want_hor;
3774     win_T	*old_curwin = curwin;
3775     buf_T	*old_curbuf = curbuf;
3776 #ifdef FEAT_VISUAL
3777     int		old_VIsual_select = VIsual_select;
3778     int		old_VIsual_active = VIsual_active;
3779 #endif
3780     colnr_T	tgt_leftcol = curwin->w_leftcol;
3781     long	topline;
3782     long	y;
3783 
3784     /*
3785      * check 'scrollopt' string for vertical and horizontal scroll options
3786      */
3787     want_ver = (vim_strchr(p_sbo, 'v') && topline_diff != 0);
3788 #ifdef FEAT_DIFF
3789     want_ver |= old_curwin->w_p_diff;
3790 #endif
3791     want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || topline_diff != 0));
3792 
3793     /*
3794      * loop through the scrollbound windows and scroll accordingly
3795      */
3796 #ifdef FEAT_VISUAL
3797     VIsual_select = VIsual_active = 0;
3798 #endif
3799     for (curwin = firstwin; curwin; curwin = curwin->w_next)
3800     {
3801 	curbuf = curwin->w_buffer;
3802 	/* skip original window  and windows with 'noscrollbind' */
3803 	if (curwin != old_curwin && curwin->w_p_scb)
3804 	{
3805 	    /*
3806 	     * do the vertical scroll
3807 	     */
3808 	    if (want_ver)
3809 	    {
3810 #ifdef FEAT_DIFF
3811 		if (old_curwin->w_p_diff && curwin->w_p_diff)
3812 		{
3813 		    diff_set_topline(old_curwin, curwin);
3814 		}
3815 		else
3816 #endif
3817 		{
3818 		    curwin->w_scbind_pos += topline_diff;
3819 		    topline = curwin->w_scbind_pos;
3820 		    if (topline > curbuf->b_ml.ml_line_count)
3821 			topline = curbuf->b_ml.ml_line_count;
3822 		    if (topline < 1)
3823 			topline = 1;
3824 
3825 		    y = topline - curwin->w_topline;
3826 		    if (y > 0)
3827 			scrollup(y, FALSE);
3828 		    else
3829 			scrolldown(-y, FALSE);
3830 		}
3831 
3832 		redraw_later(VALID);
3833 		cursor_correct();
3834 #ifdef FEAT_WINDOWS
3835 		curwin->w_redr_status = TRUE;
3836 #endif
3837 	    }
3838 
3839 	    /*
3840 	     * do the horizontal scroll
3841 	     */
3842 	    if (want_hor && curwin->w_leftcol != tgt_leftcol)
3843 	    {
3844 		curwin->w_leftcol = tgt_leftcol;
3845 		leftcol_changed();
3846 	    }
3847 	}
3848     }
3849 
3850     /*
3851      * reset current-window
3852      */
3853 #ifdef FEAT_VISUAL
3854     VIsual_select = old_VIsual_select;
3855     VIsual_active = old_VIsual_active;
3856 #endif
3857     curwin = old_curwin;
3858     curbuf = old_curbuf;
3859 }
3860 #endif /* #ifdef FEAT_SCROLLBIND */
3861 
3862 /*
3863  * Command character that's ignored.
3864  * Used for CTRL-Q and CTRL-S to avoid problems with terminals that use
3865  * xon/xoff
3866  */
3867 /*ARGSUSED */
3868     static void
3869 nv_ignore(cap)
3870     cmdarg_T	*cap;
3871 {
3872     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
3873 }
3874 
3875 /*
3876  * Command character doesn't exist.
3877  */
3878     static void
3879 nv_error(cap)
3880     cmdarg_T	*cap;
3881 {
3882     clearopbeep(cap->oap);
3883 }
3884 
3885 /*
3886  * <Help> and <F1> commands.
3887  */
3888     static void
3889 nv_help(cap)
3890     cmdarg_T	*cap;
3891 {
3892     if (!checkclearopq(cap->oap))
3893 	ex_help(NULL);
3894 }
3895 
3896 /*
3897  * CTRL-A and CTRL-X: Add or subtract from letter or number under cursor.
3898  */
3899     static void
3900 nv_addsub(cap)
3901     cmdarg_T	*cap;
3902 {
3903     if (!checkclearopq(cap->oap)
3904 	    && do_addsub((int)cap->cmdchar, cap->count1) == OK)
3905 	prep_redo_cmd(cap);
3906 }
3907 
3908 /*
3909  * CTRL-F, CTRL-B, etc: Scroll page up or down.
3910  */
3911     static void
3912 nv_page(cap)
3913     cmdarg_T	*cap;
3914 {
3915     if (!checkclearop(cap->oap))
3916 	(void)onepage(cap->arg, cap->count1);
3917 }
3918 
3919 /*
3920  * Implementation of "gd" and "gD" command.
3921  */
3922     static void
3923 nv_gd(oap, nchar, thisblock)
3924     oparg_T	*oap;
3925     int		nchar;
3926     int		thisblock;	/* 1 for "1gd" and "1gD" */
3927 {
3928     int		len;
3929     char_u	*ptr;
3930 
3931     if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
3932 	    || find_decl(ptr, len, nchar == 'd', thisblock, 0) == FAIL)
3933 	clearopbeep(oap);
3934 #ifdef FEAT_FOLDING
3935     else if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
3936 	foldOpenCursor();
3937 #endif
3938 }
3939 
3940 /*
3941  * Search for variable declaration of "ptr[len]".
3942  * When "locally" is TRUE in the current function ("gd"), otherwise in the
3943  * current file ("gD").
3944  * When "thisblock" is TRUE check the {} block scope.
3945  * Return FAIL when not found.
3946  */
3947     int
3948 find_decl(ptr, len, locally, thisblock, searchflags)
3949     char_u	*ptr;
3950     int		len;
3951     int		locally;
3952     int		thisblock;
3953     int		searchflags;	/* flags passed to searchit() */
3954 {
3955     char_u	*pat;
3956     pos_T	old_pos;
3957     pos_T	par_pos;
3958     pos_T	found_pos;
3959     int		t;
3960     int		save_p_ws;
3961     int		save_p_scs;
3962     int		retval = OK;
3963     int		incl;
3964 
3965     if ((pat = alloc(len + 7)) == NULL)
3966 	return FAIL;
3967 
3968     /* Put "\V" before the pattern to avoid that the special meaning of "."
3969      * and "~" causes trouble. */
3970     sprintf((char *)pat, vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
3971 								    len, ptr);
3972     old_pos = curwin->w_cursor;
3973     save_p_ws = p_ws;
3974     save_p_scs = p_scs;
3975     p_ws = FALSE;	/* don't wrap around end of file now */
3976     p_scs = FALSE;	/* don't switch ignorecase off now */
3977 
3978     /*
3979      * With "gD" go to line 1.
3980      * With "gd" Search back for the start of the current function, then go
3981      * back until a blank line.  If this fails go to line 1.
3982      */
3983     if (!locally || !findpar(&incl, BACKWARD, 1L, '{', FALSE))
3984     {
3985 	setpcmark();			/* Set in findpar() otherwise */
3986 	curwin->w_cursor.lnum = 1;
3987     }
3988     else
3989     {
3990 	while (curwin->w_cursor.lnum > 1 && *skipwhite(ml_get_curline()) != NUL)
3991 	    --curwin->w_cursor.lnum;
3992     }
3993     curwin->w_cursor.col = 0;
3994     par_pos = curwin->w_cursor;
3995 
3996     /* Search forward for the identifier, ignore comment lines. */
3997     found_pos.lnum = 0;
3998     for (;;)
3999     {
4000 	t = searchit(curwin, curbuf, &curwin->w_cursor, FORWARD,
4001 					       pat, 1L, searchflags, RE_LAST);
4002 	if (curwin->w_cursor.lnum >= old_pos.lnum)
4003 	    t = FAIL;	/* match after start is failure too */
4004 
4005 	if (thisblock)
4006 	{
4007 	    pos_T	*pos;
4008 
4009 	    /* Check that the block the match is in doesn't end before the
4010 	     * position where we started the search from. */
4011 	    if ((pos = findmatchlimit(NULL, '}', FM_FORWARD,
4012 		     (int)(old_pos.lnum - curwin->w_cursor.lnum + 1))) != NULL
4013 		    && pos->lnum < old_pos.lnum)
4014 		continue;
4015 	}
4016 
4017 	if (t == FAIL)
4018 	{
4019 	    /* If we previously found a valid position, use it. */
4020 	    if (found_pos.lnum != 0)
4021 	    {
4022 		curwin->w_cursor = found_pos;
4023 		t = OK;
4024 	    }
4025 	    break;
4026 	}
4027 #ifdef FEAT_COMMENTS
4028 	if (get_leader_len(ml_get_curline(), NULL, FALSE) > 0)
4029 	{
4030 	    /* Ignore this line, continue at start of next line. */
4031 	    ++curwin->w_cursor.lnum;
4032 	    curwin->w_cursor.col = 0;
4033 	    continue;
4034 	}
4035 #endif
4036 	if (!locally)	/* global search: use first match found */
4037 	    break;
4038 	if (curwin->w_cursor.lnum >= par_pos.lnum)
4039 	{
4040 	    /* If we previously found a valid position, use it. */
4041 	    if (found_pos.lnum != 0)
4042 		curwin->w_cursor = found_pos;
4043 	    break;
4044 	}
4045 
4046 	/* For finding a local variable and the match is before the "{" search
4047 	 * to find a later match.  For K&R style function declarations this
4048 	 * skips the function header without types. */
4049 	found_pos = curwin->w_cursor;
4050     }
4051 
4052     if (t == FAIL)
4053     {
4054 	retval = FAIL;
4055 	curwin->w_cursor = old_pos;
4056     }
4057     else
4058     {
4059 	curwin->w_set_curswant = TRUE;
4060 	/* "n" searches forward now */
4061 	reset_search_dir();
4062     }
4063 
4064     vim_free(pat);
4065     p_ws = save_p_ws;
4066     p_scs = save_p_scs;
4067 
4068     return retval;
4069 }
4070 
4071 /*
4072  * Move 'dist' lines in direction 'dir', counting lines by *screen*
4073  * lines rather than lines in the file.
4074  * 'dist' must be positive.
4075  *
4076  * Return OK if able to move cursor, FAIL otherwise.
4077  */
4078     static int
4079 nv_screengo(oap, dir, dist)
4080     oparg_T	*oap;
4081     int		dir;
4082     long	dist;
4083 {
4084     int		linelen = linetabsize(ml_get_curline());
4085     int		retval = OK;
4086     int		atend = FALSE;
4087     int		n;
4088     int		col_off1;	/* margin offset for first screen line */
4089     int		col_off2;	/* margin offset for wrapped screen line */
4090     int		width1;		/* text width for first screen line */
4091     int		width2;		/* test width for wrapped screen line */
4092 
4093     oap->motion_type = MCHAR;
4094     oap->inclusive = FALSE;
4095 
4096     col_off1 = curwin_col_off();
4097     col_off2 = col_off1 - curwin_col_off2();
4098     width1 = W_WIDTH(curwin) - col_off1;
4099     width2 = W_WIDTH(curwin) - col_off2;
4100 
4101 #ifdef FEAT_VERTSPLIT
4102     if (curwin->w_width != 0)
4103     {
4104 #endif
4105       /*
4106        * Instead of sticking at the last character of the buffer line we
4107        * try to stick in the last column of the screen.
4108        */
4109       if (curwin->w_curswant == MAXCOL)
4110       {
4111 	atend = TRUE;
4112 	validate_virtcol();
4113 	if (width1 <= 0)
4114 	    curwin->w_curswant = 0;
4115 	else
4116 	{
4117 	    curwin->w_curswant = width1 - 1;
4118 	    if (curwin->w_virtcol > curwin->w_curswant)
4119 		curwin->w_curswant += ((curwin->w_virtcol
4120 			     - curwin->w_curswant - 1) / width2 + 1) * width2;
4121 	}
4122       }
4123       else
4124       {
4125 	if (linelen > width1)
4126 	    n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4127 	else
4128 	    n = width1;
4129 	if (curwin->w_curswant > (colnr_T)n + 1)
4130 	    curwin->w_curswant -= ((curwin->w_curswant - n) / width2 + 1)
4131 								     * width2;
4132       }
4133 
4134       while (dist--)
4135       {
4136 	if (dir == BACKWARD)
4137 	{
4138 	    if ((long)curwin->w_curswant >= width2)
4139 		/* move back within line */
4140 		curwin->w_curswant -= width2;
4141 	    else
4142 	    {
4143 		/* to previous line */
4144 		if (curwin->w_cursor.lnum == 1)
4145 		{
4146 		    retval = FAIL;
4147 		    break;
4148 		}
4149 		--curwin->w_cursor.lnum;
4150 #ifdef FEAT_FOLDING
4151 		/* Move to the start of a closed fold.  Don't do that when
4152 		 * 'foldopen' contains "all": it will open in a moment. */
4153 		if (!(fdo_flags & FDO_ALL))
4154 		    (void)hasFolding(curwin->w_cursor.lnum,
4155 						&curwin->w_cursor.lnum, NULL);
4156 #endif
4157 		linelen = linetabsize(ml_get_curline());
4158 		if (linelen > width1)
4159 		    curwin->w_curswant += (((linelen - width1 - 1) / width2)
4160 								+ 1) * width2;
4161 	    }
4162 	}
4163 	else /* dir == FORWARD */
4164 	{
4165 	    if (linelen > width1)
4166 		n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4167 	    else
4168 		n = width1;
4169 	    if (curwin->w_curswant + width2 < (colnr_T)n)
4170 		/* move forward within line */
4171 		curwin->w_curswant += width2;
4172 	    else
4173 	    {
4174 		/* to next line */
4175 #ifdef FEAT_FOLDING
4176 		/* Move to the end of a closed fold. */
4177 		(void)hasFolding(curwin->w_cursor.lnum, NULL,
4178 						      &curwin->w_cursor.lnum);
4179 #endif
4180 		if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4181 		{
4182 		    retval = FAIL;
4183 		    break;
4184 		}
4185 		curwin->w_cursor.lnum++;
4186 		curwin->w_curswant %= width2;
4187 	    }
4188 	}
4189       }
4190 #ifdef FEAT_VERTSPLIT
4191     }
4192 #endif
4193 
4194     coladvance(curwin->w_curswant);
4195 
4196 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
4197     if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
4198     {
4199 	/*
4200 	 * Check for landing on a character that got split at the end of the
4201 	 * last line.  We want to advance a screenline, not end up in the same
4202 	 * screenline or move two screenlines.
4203 	 */
4204 	validate_virtcol();
4205 	if (curwin->w_virtcol > curwin->w_curswant
4206 		&& (curwin->w_curswant < (colnr_T)width1
4207 		    ? (curwin->w_curswant > (colnr_T)width1 / 2)
4208 		    : ((curwin->w_curswant - width1) % width2
4209 						      > (colnr_T)width2 / 2)))
4210 	    --curwin->w_cursor.col;
4211     }
4212 #endif
4213 
4214     if (atend)
4215 	curwin->w_curswant = MAXCOL;	    /* stick in the last column */
4216 
4217     return retval;
4218 }
4219 
4220 #ifdef FEAT_MOUSE
4221 /*
4222  * Mouse scroll wheel: Default action is to scroll three lines, or one page
4223  * when Shift or Ctrl is used.
4224  * K_MOUSEUP (cap->arg == TRUE) or K_MOUSEDOWN (cap->arg == FALSE)
4225  */
4226     static void
4227 nv_mousescroll(cap)
4228     cmdarg_T	*cap;
4229 {
4230 # if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
4231     win_T *old_curwin;
4232 
4233     old_curwin = curwin;
4234 
4235     /* Currently we only get the mouse coordinates in the GUI. */
4236     if (gui.in_use && mouse_row >= 0 && mouse_col >= 0)
4237     {
4238 	int row, col;
4239 
4240 	row = mouse_row;
4241 	col = mouse_col;
4242 
4243 	/* find the window at the pointer coordinates */
4244 	curwin = mouse_find_win(&row, &col);
4245 	curbuf = curwin->w_buffer;
4246     }
4247 # endif
4248 
4249     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4250     {
4251 	(void)onepage(cap->arg ? FORWARD : BACKWARD, 1L);
4252     }
4253     else
4254     {
4255 	cap->count1 = 3;
4256 	cap->count0 = 3;
4257 	nv_scroll_line(cap);
4258     }
4259 
4260 # if defined(FEAT_GUI) && defined(FEAT_WINDOWS)
4261     curwin->w_redr_status = TRUE;
4262 
4263     curwin = old_curwin;
4264     curbuf = curwin->w_buffer;
4265 # endif
4266 }
4267 
4268 /*
4269  * Mouse clicks and drags.
4270  */
4271     static void
4272 nv_mouse(cap)
4273     cmdarg_T	*cap;
4274 {
4275     (void)do_mouse(cap->oap, cap->cmdchar, BACKWARD, cap->count1, 0);
4276 }
4277 #endif
4278 
4279 /*
4280  * Handle CTRL-E and CTRL-Y commands: scroll a line up or down.
4281  * cap->arg must be TRUE for CTRL-E.
4282  */
4283     static void
4284 nv_scroll_line(cap)
4285     cmdarg_T	*cap;
4286 {
4287     if (!checkclearop(cap->oap))
4288 	scroll_redraw(cap->arg, cap->count1);
4289 }
4290 
4291 /*
4292  * Scroll "count" lines up or down, and redraw.
4293  */
4294     void
4295 scroll_redraw(up, count)
4296     int		up;
4297     long	count;
4298 {
4299     linenr_T	prev_topline = curwin->w_topline;
4300 #ifdef FEAT_DIFF
4301     int		prev_topfill = curwin->w_topfill;
4302 #endif
4303     linenr_T	prev_lnum = curwin->w_cursor.lnum;
4304 
4305     if (up)
4306 	scrollup(count, TRUE);
4307     else
4308 	scrolldown(count, TRUE);
4309     if (p_so)
4310     {
4311 	/* Adjust the cursor position for 'scrolloff'.  Mark w_topline as
4312 	 * valid, otherwise the screen jumps back at the end of the file. */
4313 	cursor_correct();
4314 	check_cursor_moved(curwin);
4315 	curwin->w_valid |= VALID_TOPLINE;
4316 
4317 	/* If moved back to where we were, at least move the cursor, otherwise
4318 	 * we get stuck at one position.  Don't move the cursor up if the
4319 	 * first line of the buffer is already on the screen */
4320 	while (curwin->w_topline == prev_topline
4321 #ifdef FEAT_DIFF
4322 		&& curwin->w_topfill == prev_topfill
4323 #endif
4324 		)
4325 	{
4326 	    if (up)
4327 	    {
4328 		if (curwin->w_cursor.lnum > prev_lnum
4329 			|| cursor_down(1L, FALSE) == FAIL)
4330 		    break;
4331 	    }
4332 	    else
4333 	    {
4334 		if (curwin->w_cursor.lnum < prev_lnum
4335 			|| prev_topline == 1L
4336 			|| cursor_up(1L, FALSE) == FAIL)
4337 		    break;
4338 	    }
4339 	    /* Mark w_topline as valid, otherwise the screen jumps back at the
4340 	     * end of the file. */
4341 	    check_cursor_moved(curwin);
4342 	    curwin->w_valid |= VALID_TOPLINE;
4343 	}
4344     }
4345     if (curwin->w_cursor.lnum != prev_lnum)
4346 	coladvance(curwin->w_curswant);
4347     redraw_later(VALID);
4348 }
4349 
4350 /*
4351  * Commands that start with "z".
4352  */
4353     static void
4354 nv_zet(cap)
4355     cmdarg_T  *cap;
4356 {
4357     long	n;
4358     colnr_T	col;
4359     int		nchar = cap->nchar;
4360 #ifdef FEAT_FOLDING
4361     long	old_fdl = curwin->w_p_fdl;
4362     int		old_fen = curwin->w_p_fen;
4363 #endif
4364 
4365     if (VIM_ISDIGIT(nchar))
4366     {
4367 	/*
4368 	 * "z123{nchar}": edit the count before obtaining {nchar}
4369 	 */
4370 	if (checkclearop(cap->oap))
4371 	    return;
4372 	n = nchar - '0';
4373 	for (;;)
4374 	{
4375 #ifdef USE_ON_FLY_SCROLL
4376 	    dont_scroll = TRUE;		/* disallow scrolling here */
4377 #endif
4378 	    ++no_mapping;
4379 	    ++allow_keys;   /* no mapping for nchar, but allow key codes */
4380 	    nchar = safe_vgetc();
4381 #ifdef FEAT_LANGMAP
4382 	    LANGMAP_ADJUST(nchar, TRUE);
4383 #endif
4384 	    --no_mapping;
4385 	    --allow_keys;
4386 #ifdef FEAT_CMDL_INFO
4387 	    (void)add_to_showcmd(nchar);
4388 #endif
4389 	    if (nchar == K_DEL || nchar == K_KDEL)
4390 		n /= 10;
4391 	    else if (VIM_ISDIGIT(nchar))
4392 		n = n * 10 + (nchar - '0');
4393 	    else if (nchar == CAR)
4394 	    {
4395 #ifdef FEAT_GUI
4396 		need_mouse_correct = TRUE;
4397 #endif
4398 		win_setheight((int)n);
4399 		break;
4400 	    }
4401 	    else if (nchar == 'l'
4402 		    || nchar == 'h'
4403 		    || nchar == K_LEFT
4404 		    || nchar == K_RIGHT)
4405 	    {
4406 		cap->count1 = n ? n * cap->count1 : cap->count1;
4407 		goto dozet;
4408 	    }
4409 	    else
4410 	    {
4411 		clearopbeep(cap->oap);
4412 		break;
4413 	    }
4414 	}
4415 	cap->oap->op_type = OP_NOP;
4416 	return;
4417     }
4418 
4419 dozet:
4420     if (
4421 #ifdef FEAT_FOLDING
4422 	    /* "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
4423 	     * and "zC" only in Visual mode.  "zj" and "zk" are motion
4424 	     * commands. */
4425 	    cap->nchar != 'f' && cap->nchar != 'F'
4426 	    && !(VIsual_active && vim_strchr((char_u *)"dcCoO", cap->nchar))
4427 	    && cap->nchar != 'j' && cap->nchar != 'k'
4428 	    &&
4429 #endif
4430 	    checkclearop(cap->oap))
4431 	return;
4432 
4433     /*
4434      * For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
4435      * If line number given, set cursor.
4436      */
4437     if ((vim_strchr((char_u *)"+\r\nt.z^-b", nchar) != NULL)
4438 	    && cap->count0
4439 	    && cap->count0 != curwin->w_cursor.lnum)
4440     {
4441 	setpcmark();
4442 	if (cap->count0 > curbuf->b_ml.ml_line_count)
4443 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4444 	else
4445 	    curwin->w_cursor.lnum = cap->count0;
4446 	check_cursor_col();
4447     }
4448 
4449     switch (nchar)
4450     {
4451 		/* "z+", "z<CR>" and "zt": put cursor at top of screen */
4452     case '+':
4453 		if (cap->count0 == 0)
4454 		{
4455 		    /* No count given: put cursor at the line below screen */
4456 		    validate_botline();	/* make sure w_botline is valid */
4457 		    if (curwin->w_botline > curbuf->b_ml.ml_line_count)
4458 			curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4459 		    else
4460 			curwin->w_cursor.lnum = curwin->w_botline;
4461 		}
4462 		/* FALLTHROUGH */
4463     case NL:
4464     case CAR:
4465     case K_KENTER:
4466 		beginline(BL_WHITE | BL_FIX);
4467 		/* FALLTHROUGH */
4468 
4469     case 't':	scroll_cursor_top(0, TRUE);
4470 		redraw_later(VALID);
4471 		break;
4472 
4473 		/* "z." and "zz": put cursor in middle of screen */
4474     case '.':	beginline(BL_WHITE | BL_FIX);
4475 		/* FALLTHROUGH */
4476 
4477     case 'z':	scroll_cursor_halfway(TRUE);
4478 		redraw_later(VALID);
4479 		break;
4480 
4481 		/* "z^", "z-" and "zb": put cursor at bottom of screen */
4482     case '^':	/* Strange Vi behavior: <count>z^ finds line at top of window
4483 		 * when <count> is at bottom of window, and puts that one at
4484 		 * bottom of window. */
4485 		if (cap->count0 != 0)
4486 		{
4487 		    scroll_cursor_bot(0, TRUE);
4488 		    curwin->w_cursor.lnum = curwin->w_topline;
4489 		}
4490 		else if (curwin->w_topline == 1)
4491 		    curwin->w_cursor.lnum = 1;
4492 		else
4493 		    curwin->w_cursor.lnum = curwin->w_topline - 1;
4494 		/* FALLTHROUGH */
4495     case '-':
4496 		beginline(BL_WHITE | BL_FIX);
4497 		/* FALLTHROUGH */
4498 
4499     case 'b':	scroll_cursor_bot(0, TRUE);
4500 		redraw_later(VALID);
4501 		break;
4502 
4503 		/* "zH" - scroll screen right half-page */
4504     case 'H':
4505 		cap->count1 *= W_WIDTH(curwin) / 2;
4506 		/* FALLTHROUGH */
4507 
4508 		/* "zh" - scroll screen to the right */
4509     case 'h':
4510     case K_LEFT:
4511 		if (!curwin->w_p_wrap)
4512 		{
4513 		    if ((colnr_T)cap->count1 > curwin->w_leftcol)
4514 			curwin->w_leftcol = 0;
4515 		    else
4516 			curwin->w_leftcol -= (colnr_T)cap->count1;
4517 		    leftcol_changed();
4518 		}
4519 		break;
4520 
4521 		/* "zL" - scroll screen left half-page */
4522     case 'L':	cap->count1 *= W_WIDTH(curwin) / 2;
4523 		/* FALLTHROUGH */
4524 
4525 		/* "zl" - scroll screen to the left */
4526     case 'l':
4527     case K_RIGHT:
4528 		if (!curwin->w_p_wrap)
4529 		{
4530 		    /* scroll the window left */
4531 		    curwin->w_leftcol += (colnr_T)cap->count1;
4532 		    leftcol_changed();
4533 		}
4534 		break;
4535 
4536 		/* "zs" - scroll screen, cursor at the start */
4537     case 's':	if (!curwin->w_p_wrap)
4538 		{
4539 #ifdef FEAT_FOLDING
4540 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4541 			col = 0;	/* like the cursor is in col 0 */
4542 		    else
4543 #endif
4544 		    getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
4545 		    if ((long)col > p_siso)
4546 			col -= p_siso;
4547 		    else
4548 			col = 0;
4549 		    if (curwin->w_leftcol != col)
4550 		    {
4551 			curwin->w_leftcol = col;
4552 			redraw_later(NOT_VALID);
4553 		    }
4554 		}
4555 		break;
4556 
4557 		/* "ze" - scroll screen, cursor at the end */
4558     case 'e':	if (!curwin->w_p_wrap)
4559 		{
4560 #ifdef FEAT_FOLDING
4561 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4562 			col = 0;	/* like the cursor is in col 0 */
4563 		    else
4564 #endif
4565 		    getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
4566 		    n = W_WIDTH(curwin) - curwin_col_off();
4567 		    if ((long)col + p_siso < n)
4568 			col = 0;
4569 		    else
4570 			col = col + p_siso - n + 1;
4571 		    if (curwin->w_leftcol != col)
4572 		    {
4573 			curwin->w_leftcol = col;
4574 			redraw_later(NOT_VALID);
4575 		    }
4576 		}
4577 		break;
4578 
4579 #ifdef FEAT_FOLDING
4580 		/* "zF": create fold command */
4581 		/* "zf": create fold operator */
4582     case 'F':
4583     case 'f':   if (foldManualAllowed(TRUE))
4584 		{
4585 		    cap->nchar = 'f';
4586 		    nv_operator(cap);
4587 		    curwin->w_p_fen = TRUE;
4588 
4589 		    /* "zF" is like "zfzf" */
4590 		    if (nchar == 'F' && cap->oap->op_type == OP_FOLD)
4591 		    {
4592 			nv_operator(cap);
4593 			finish_op = TRUE;
4594 		    }
4595 		}
4596 		else
4597 		    clearopbeep(cap->oap);
4598 		break;
4599 
4600 		/* "zd": delete fold at cursor */
4601 		/* "zD": delete fold at cursor recursively */
4602     case 'd':
4603     case 'D':	if (foldManualAllowed(FALSE))
4604 		{
4605 		    if (VIsual_active)
4606 			nv_operator(cap);
4607 		    else
4608 			deleteFold(curwin->w_cursor.lnum,
4609 				  curwin->w_cursor.lnum, nchar == 'D', FALSE);
4610 		}
4611 		break;
4612 
4613 		/* "zE": erease all folds */
4614     case 'E':	if (foldmethodIsManual(curwin))
4615 		{
4616 		    clearFolding(curwin);
4617 		    changed_window_setting();
4618 		}
4619 		else if (foldmethodIsMarker(curwin))
4620 		    deleteFold((linenr_T)1, curbuf->b_ml.ml_line_count,
4621 								 TRUE, FALSE);
4622 		else
4623 		    EMSG(_("E352: Cannot erase folds with current 'foldmethod'"));
4624 		break;
4625 
4626 		/* "zn": fold none: reset 'foldenable' */
4627     case 'n':	curwin->w_p_fen = FALSE;
4628 		break;
4629 
4630 		/* "zN": fold Normal: set 'foldenable' */
4631     case 'N':	curwin->w_p_fen = TRUE;
4632 		break;
4633 
4634 		/* "zi": invert folding: toggle 'foldenable' */
4635     case 'i':	curwin->w_p_fen = !curwin->w_p_fen;
4636 		break;
4637 
4638 		/* "za": open closed fold or close open fold at cursor */
4639     case 'a':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4640 		    openFold(curwin->w_cursor.lnum, cap->count1);
4641 		else
4642 		{
4643 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4644 		    curwin->w_p_fen = TRUE;
4645 		}
4646 		break;
4647 
4648 		/* "zA": open fold at cursor recursively */
4649     case 'A':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4650 		    openFoldRecurse(curwin->w_cursor.lnum);
4651 		else
4652 		{
4653 		    closeFoldRecurse(curwin->w_cursor.lnum);
4654 		    curwin->w_p_fen = TRUE;
4655 		}
4656 		break;
4657 
4658 		/* "zo": open fold at cursor or Visual area */
4659     case 'o':	if (VIsual_active)
4660 		    nv_operator(cap);
4661 		else
4662 		    openFold(curwin->w_cursor.lnum, cap->count1);
4663 		break;
4664 
4665 		/* "zO": open fold recursively */
4666     case 'O':	if (VIsual_active)
4667 		    nv_operator(cap);
4668 		else
4669 		    openFoldRecurse(curwin->w_cursor.lnum);
4670 		break;
4671 
4672 		/* "zc": close fold at cursor or Visual area */
4673     case 'c':	if (VIsual_active)
4674 		    nv_operator(cap);
4675 		else
4676 		    closeFold(curwin->w_cursor.lnum, cap->count1);
4677 		curwin->w_p_fen = TRUE;
4678 		break;
4679 
4680 		/* "zC": close fold recursively */
4681     case 'C':	if (VIsual_active)
4682 		    nv_operator(cap);
4683 		else
4684 		    closeFoldRecurse(curwin->w_cursor.lnum);
4685 		curwin->w_p_fen = TRUE;
4686 		break;
4687 
4688 		/* "zv": open folds at the cursor */
4689     case 'v':	foldOpenCursor();
4690 		break;
4691 
4692 		/* "zx": re-apply 'foldlevel' and open folds at the cursor */
4693     case 'x':	curwin->w_p_fen = TRUE;
4694 		newFoldLevel();		/* update right now */
4695 		foldOpenCursor();
4696 		break;
4697 
4698 		/* "zX": undo manual opens/closes, re-apply 'foldlevel' */
4699     case 'X':	curwin->w_p_fen = TRUE;
4700 		old_fdl = -1;		/* force an update */
4701 		break;
4702 
4703 		/* "zm": fold more */
4704     case 'm':	if (curwin->w_p_fdl > 0)
4705 		    --curwin->w_p_fdl;
4706 		old_fdl = -1;		/* force an update */
4707 		curwin->w_p_fen = TRUE;
4708 		break;
4709 
4710 		/* "zM": close all folds */
4711     case 'M':	curwin->w_p_fdl = 0;
4712 		old_fdl = -1;		/* force an update */
4713 		curwin->w_p_fen = TRUE;
4714 		break;
4715 
4716 		/* "zr": reduce folding */
4717     case 'r':	++curwin->w_p_fdl;
4718 		break;
4719 
4720 		/* "zR": open all folds */
4721     case 'R':	curwin->w_p_fdl = getDeepestNesting();
4722 		old_fdl = -1;		/* force an update */
4723 		break;
4724 
4725     case 'j':	/* "zj" move to next fold downwards */
4726     case 'k':	/* "zk" move to next fold upwards */
4727 		if (foldMoveTo(TRUE, nchar == 'j' ? FORWARD : BACKWARD,
4728 							  cap->count1) == FAIL)
4729 		    clearopbeep(cap->oap);
4730 		break;
4731 
4732 #endif /* FEAT_FOLDING */
4733 
4734 #ifdef FEAT_SYN_HL
4735     case 'g':	/* "zg": add good word to word list */
4736     case 'w':	/* "zw": add wrong word to word list */
4737     case 'G':	/* "zG": add good word to temp word list */
4738     case 'W':	/* "zW": add wrong word to temp word list */
4739 		{
4740 		    char_u  *ptr = NULL;
4741 		    int	    len;
4742 
4743 		    if (checkclearop(cap->oap))
4744 			break;
4745 # ifdef FEAT_VISUAL
4746 		    if (VIsual_active && get_visual_text(cap, &ptr, &len)
4747 								      == FAIL)
4748 			return;
4749 # endif
4750 		    if (ptr == NULL)
4751 		    {
4752 			pos_T	pos = curwin->w_cursor;
4753 			int	attr;
4754 
4755 			/* Find bad word under the cursor. */
4756 			len = spell_move_to(curwin, FORWARD, TRUE, TRUE, &attr);
4757 			if (len != 0 && curwin->w_cursor.col <= pos.col)
4758 			    ptr = ml_get_pos(&curwin->w_cursor);
4759 			curwin->w_cursor = pos;
4760 		    }
4761 
4762 		    if (ptr == NULL && (len = find_ident_under_cursor(&ptr,
4763 							    FIND_IDENT)) == 0)
4764 			return;
4765 		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W',
4766 					    (nchar == 'G' || nchar == 'W') ? 0
4767 							  : (int)cap->count1);
4768 		}
4769 		break;
4770 
4771     case '?':	/* "z?": suggestions for a badly spelled word  */
4772 		if (!checkclearopq(cap->oap))
4773 		    spell_suggest((int)cap->count0);
4774 		break;
4775 #endif
4776 
4777     default:	clearopbeep(cap->oap);
4778     }
4779 
4780 #ifdef FEAT_FOLDING
4781     /* Redraw when 'foldenable' changed */
4782     if (old_fen != curwin->w_p_fen)
4783     {
4784 # ifdef FEAT_DIFF
4785 	win_T	    *wp;
4786 
4787 	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
4788 	{
4789 	    /* Adjust 'foldenable' in diff-synced windows. */
4790 	    FOR_ALL_WINDOWS(wp)
4791 	    {
4792 		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
4793 		{
4794 		    wp->w_p_fen = curwin->w_p_fen;
4795 		    changed_window_setting_win(wp);
4796 		}
4797 	    }
4798 	}
4799 # endif
4800 	changed_window_setting();
4801     }
4802 
4803     /* Redraw when 'foldlevel' changed. */
4804     if (old_fdl != curwin->w_p_fdl)
4805 	newFoldLevel();
4806 #endif
4807 }
4808 
4809 #ifdef FEAT_GUI
4810 /*
4811  * Vertical scrollbar movement.
4812  */
4813     static void
4814 nv_ver_scrollbar(cap)
4815     cmdarg_T	*cap;
4816 {
4817     if (cap->oap->op_type != OP_NOP)
4818 	clearopbeep(cap->oap);
4819 
4820     /* Even if an operator was pending, we still want to scroll */
4821     gui_do_scroll();
4822 }
4823 
4824 /*
4825  * Horizontal scrollbar movement.
4826  */
4827     static void
4828 nv_hor_scrollbar(cap)
4829     cmdarg_T	*cap;
4830 {
4831     if (cap->oap->op_type != OP_NOP)
4832 	clearopbeep(cap->oap);
4833 
4834     /* Even if an operator was pending, we still want to scroll */
4835     gui_do_horiz_scroll();
4836 }
4837 #endif
4838 
4839 /*
4840  * "Q" command.
4841  */
4842     static void
4843 nv_exmode(cap)
4844     cmdarg_T	*cap;
4845 {
4846     /*
4847      * Ignore 'Q' in Visual mode, just give a beep.
4848      */
4849 #ifdef FEAT_VISUAL
4850     if (VIsual_active)
4851 	vim_beep();
4852     else
4853 #endif
4854 	if (!checkclearop(cap->oap))
4855 	do_exmode(FALSE);
4856 }
4857 
4858 /*
4859  * Handle a ":" command.
4860  */
4861     static void
4862 nv_colon(cap)
4863     cmdarg_T  *cap;
4864 {
4865     int	    old_p_im;
4866 
4867 #ifdef FEAT_VISUAL
4868     if (VIsual_active)
4869 	nv_operator(cap);
4870     else
4871 #endif
4872     {
4873 	if (cap->oap->op_type != OP_NOP)
4874 	{
4875 	    /* Using ":" as a movement is characterwise exclusive. */
4876 	    cap->oap->motion_type = MCHAR;
4877 	    cap->oap->inclusive = FALSE;
4878 	}
4879 	else if (cap->count0)
4880 	{
4881 	    /* translate "count:" into ":.,.+(count - 1)" */
4882 	    stuffcharReadbuff('.');
4883 	    if (cap->count0 > 1)
4884 	    {
4885 		stuffReadbuff((char_u *)",.+");
4886 		stuffnumReadbuff((long)cap->count0 - 1L);
4887 	    }
4888 	}
4889 
4890 	/* When typing, don't type below an old message */
4891 	if (KeyTyped)
4892 	    compute_cmdrow();
4893 
4894 	old_p_im = p_im;
4895 
4896 	/* get a command line and execute it */
4897 	do_cmdline(NULL, getexline, NULL,
4898 			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
4899 
4900 	/* If 'insertmode' changed, enter or exit Insert mode */
4901 	if (p_im != old_p_im)
4902 	{
4903 	    if (p_im)
4904 		restart_edit = 'i';
4905 	    else
4906 		restart_edit = 0;
4907 	}
4908 
4909 	/* The start of the operator may have become invalid by the Ex
4910 	 * command. */
4911 	if (cap->oap->op_type != OP_NOP
4912 		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
4913 		    || cap->oap->start.col >
4914 					 STRLEN(ml_get(cap->oap->start.lnum))))
4915 	    clearopbeep(cap->oap);
4916     }
4917 }
4918 
4919 /*
4920  * Handle CTRL-G command.
4921  */
4922     static void
4923 nv_ctrlg(cap)
4924     cmdarg_T *cap;
4925 {
4926 #ifdef FEAT_VISUAL
4927     if (VIsual_active)	/* toggle Selection/Visual mode */
4928     {
4929 	VIsual_select = !VIsual_select;
4930 	showmode();
4931     }
4932     else
4933 #endif
4934 	if (!checkclearop(cap->oap))
4935 	/* print full name if count given or :cd used */
4936 	fileinfo((int)cap->count0, FALSE, TRUE);
4937 }
4938 
4939 /*
4940  * Handle CTRL-H <Backspace> command.
4941  */
4942     static void
4943 nv_ctrlh(cap)
4944     cmdarg_T *cap;
4945 {
4946 #ifdef FEAT_VISUAL
4947     if (VIsual_active && VIsual_select)
4948     {
4949 	cap->cmdchar = 'x';	/* BS key behaves like 'x' in Select mode */
4950 	v_visop(cap);
4951     }
4952     else
4953 #endif
4954 	nv_left(cap);
4955 }
4956 
4957 /*
4958  * CTRL-L: clear screen and redraw.
4959  */
4960     static void
4961 nv_clear(cap)
4962     cmdarg_T	*cap;
4963 {
4964     if (!checkclearop(cap->oap))
4965     {
4966 #if defined(__BEOS__) && !USE_THREAD_FOR_INPUT_WITH_TIMEOUT
4967 	/*
4968 	 * Right now, the BeBox doesn't seem to have an easy way to detect
4969 	 * window resizing, so we cheat and make the user detect it
4970 	 * manually with CTRL-L instead
4971 	 */
4972 	ui_get_shellsize();
4973 #endif
4974 #ifdef FEAT_SYN_HL
4975 	/* Clear all syntax states to force resyncing. */
4976 	syn_stack_free_all(curbuf);
4977 #endif
4978 	redraw_later(CLEAR);
4979     }
4980 }
4981 
4982 /*
4983  * CTRL-O: In Select mode: switch to Visual mode for one command.
4984  * Otherwise: Go to older pcmark.
4985  */
4986     static void
4987 nv_ctrlo(cap)
4988     cmdarg_T	*cap;
4989 {
4990 #ifdef FEAT_VISUAL
4991     if (VIsual_active && VIsual_select)
4992     {
4993 	VIsual_select = FALSE;
4994 	showmode();
4995 	restart_VIsual_select = 2;	/* restart Select mode later */
4996     }
4997     else
4998 #endif
4999     {
5000 	cap->count1 = -cap->count1;
5001 	nv_pcmark(cap);
5002     }
5003 }
5004 
5005 /*
5006  * CTRL-^ command, short for ":e #"
5007  */
5008     static void
5009 nv_hat(cap)
5010     cmdarg_T	*cap;
5011 {
5012     if (!checkclearopq(cap->oap))
5013 	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
5014 						GETF_SETMARK|GETF_ALT, FALSE);
5015 }
5016 
5017 /*
5018  * "Z" commands.
5019  */
5020     static void
5021 nv_Zet(cap)
5022     cmdarg_T *cap;
5023 {
5024     if (!checkclearopq(cap->oap))
5025     {
5026 	switch (cap->nchar)
5027 	{
5028 			/* "ZZ": equivalent to ":x". */
5029 	    case 'Z':	do_cmdline_cmd((char_u *)"x");
5030 			break;
5031 
5032 			/* "ZQ": equivalent to ":q!" (Elvis compatible). */
5033 	    case 'Q':	do_cmdline_cmd((char_u *)"q!");
5034 			break;
5035 
5036 	    default:	clearopbeep(cap->oap);
5037 	}
5038     }
5039 }
5040 
5041 #if defined(FEAT_WINDOWS) || defined(PROTO)
5042 /*
5043  * Call nv_ident() as if "c1" was used, with "c2" as next character.
5044  */
5045     void
5046 do_nv_ident(c1, c2)
5047     int		c1;
5048     int		c2;
5049 {
5050     oparg_T	oa;
5051     cmdarg_T	ca;
5052 
5053     clear_oparg(&oa);
5054     vim_memset(&ca, 0, sizeof(ca));
5055     ca.oap = &oa;
5056     ca.cmdchar = c1;
5057     ca.nchar = c2;
5058     nv_ident(&ca);
5059 }
5060 #endif
5061 
5062 /*
5063  * Handle the commands that use the word under the cursor.
5064  * [g] CTRL-]	:ta to current identifier
5065  * [g] 'K'	run program for current identifier
5066  * [g] '*'	/ to current identifier or string
5067  * [g] '#'	? to current identifier or string
5068  *  g  ']'	:tselect for current identifier
5069  */
5070     static void
5071 nv_ident(cap)
5072     cmdarg_T	*cap;
5073 {
5074     char_u	*ptr = NULL;
5075     char_u	*buf;
5076     char_u	*p;
5077     char_u	*kp;		/* value of 'keywordprg' */
5078     int		kp_help;	/* 'keywordprg' is ":help" */
5079     int		n = 0;		/* init for GCC */
5080     int		cmdchar;
5081     int		g_cmd;		/* "g" command */
5082     char_u	*aux_ptr;
5083     int		isman;
5084     int		isman_s;
5085 
5086     if (cap->cmdchar == 'g')	/* "g*", "g#", "g]" and "gCTRL-]" */
5087     {
5088 	cmdchar = cap->nchar;
5089 	g_cmd = TRUE;
5090     }
5091     else
5092     {
5093 	cmdchar = cap->cmdchar;
5094 	g_cmd = FALSE;
5095     }
5096 
5097     if (cmdchar == POUND)	/* the pound sign, '#' for English keyboards */
5098 	cmdchar = '#';
5099 
5100     /*
5101      * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
5102      */
5103     if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
5104     {
5105 #ifdef FEAT_VISUAL
5106 	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
5107 	    return;
5108 #endif
5109 	if (checkclearopq(cap->oap))
5110 	    return;
5111     }
5112 
5113     if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
5114 		    (cmdchar == '*' || cmdchar == '#')
5115 				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
5116     {
5117 	clearop(cap->oap);
5118 	return;
5119     }
5120 
5121     /* Allocate buffer to put the command in.  Inserting backslashes can
5122      * double the length of the word.  p_kp / curbuf->b_p_kp could be added
5123      * and some numbers. */
5124     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
5125     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
5126 						 || STRCMP(kp, ":help") == 0);
5127     buf = alloc((unsigned)(n * 2 + 30 + STRLEN(kp)));
5128     if (buf == NULL)
5129 	return;
5130     buf[0] = NUL;
5131 
5132     switch (cmdchar)
5133     {
5134 	case '*':
5135 	case '#':
5136 	    /*
5137 	     * Put cursor at start of word, makes search skip the word
5138 	     * under the cursor.
5139 	     * Call setpcmark() first, so "*``" puts the cursor back where
5140 	     * it was.
5141 	     */
5142 	    setpcmark();
5143 	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());
5144 
5145 	    if (!g_cmd && vim_iswordp(ptr))
5146 		STRCPY(buf, "\\<");
5147 	    no_smartcase = TRUE;	/* don't use 'smartcase' now */
5148 	    break;
5149 
5150 	case 'K':
5151 	    if (kp_help)
5152 		STRCPY(buf, "he! ");
5153 	    else
5154 	    {
5155 		/* When a count is given, turn it into a range.  Is this
5156 		 * really what we want? */
5157 		isman = (STRCMP(kp, "man") == 0);
5158 		isman_s = (STRCMP(kp, "man -s") == 0);
5159 		if (cap->count0 != 0 && !(isman || isman_s))
5160 		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);
5161 
5162 		STRCAT(buf, "! ");
5163 		if (cap->count0 == 0 && isman_s)
5164 		    STRCAT(buf, "man");
5165 		else
5166 		    STRCAT(buf, kp);
5167 		STRCAT(buf, " ");
5168 		if (cap->count0 != 0 && (isman || isman_s))
5169 		{
5170 		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
5171 		    STRCAT(buf, " ");
5172 		}
5173 	    }
5174 	    break;
5175 
5176 	case ']':
5177 #ifdef FEAT_CSCOPE
5178 	    if (p_cst)
5179 		STRCPY(buf, "cstag ");
5180 	    else
5181 #endif
5182 		STRCPY(buf, "ts ");
5183 	    break;
5184 
5185 	default:
5186 	    if (curbuf->b_help)
5187 		STRCPY(buf, "he! ");
5188 	    else if (g_cmd)
5189 		STRCPY(buf, "tj ");
5190 	    else
5191 		STRCPY(buf, "ta ");
5192     }
5193 
5194     /*
5195      * Now grab the chars in the identifier
5196      */
5197     if (cmdchar == '*')
5198 	aux_ptr = (char_u *)(p_magic ? "/.*~[^$\\" : "/^$\\");
5199     else if (cmdchar == '#')
5200 	aux_ptr = (char_u *)(p_magic ? "/?.*~[^$\\" : "/?^$\\");
5201     else if (cmdchar == 'K' && !kp_help)
5202 	aux_ptr = (char_u *)" \t\\\"|!";
5203     else
5204 	/* Don't escape spaces and Tabs in a tag with a backslash */
5205 	aux_ptr = (char_u *)"\\|\"";
5206 
5207     p = buf + STRLEN(buf);
5208     while (n-- > 0)
5209     {
5210 	/* put a backslash before \ and some others */
5211 	if (vim_strchr(aux_ptr, *ptr) != NULL)
5212 	    *p++ = '\\';
5213 #ifdef FEAT_MBYTE
5214 	/* When current byte is a part of multibyte character, copy all bytes
5215 	 * of that character. */
5216 	if (has_mbyte)
5217 	{
5218 	    int i;
5219 	    int len = (*mb_ptr2len)(ptr) - 1;
5220 
5221 	    for (i = 0; i < len && n >= 1; ++i, --n)
5222 		*p++ = *ptr++;
5223 	}
5224 #endif
5225 	*p++ = *ptr++;
5226     }
5227     *p = NUL;
5228 
5229     /*
5230      * Execute the command.
5231      */
5232     if (cmdchar == '*' || cmdchar == '#')
5233     {
5234 	if (!g_cmd && (
5235 #ifdef FEAT_MBYTE
5236 		has_mbyte ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr)) :
5237 #endif
5238 		vim_iswordc(ptr[-1])))
5239 	    STRCAT(buf, "\\>");
5240 #ifdef FEAT_CMDHIST
5241 	/* put pattern in search history */
5242 	add_to_history(HIST_SEARCH, buf, TRUE, NUL);
5243 #endif
5244 	normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0);
5245     }
5246     else
5247 	do_cmdline_cmd(buf);
5248 
5249     vim_free(buf);
5250 }
5251 
5252 #if defined(FEAT_VISUAL) || defined(PROTO)
5253 /*
5254  * Get visually selected text, within one line only.
5255  * Returns FAIL if more than one line selected.
5256  */
5257     int
5258 get_visual_text(cap, pp, lenp)
5259     cmdarg_T	*cap;
5260     char_u	**pp;	    /* return: start of selected text */
5261     int		*lenp;	    /* return: length of selected text */
5262 {
5263     if (VIsual_mode != 'V')
5264 	unadjust_for_sel();
5265     if (VIsual.lnum != curwin->w_cursor.lnum)
5266     {
5267 	if (cap != NULL)
5268 	    clearopbeep(cap->oap);
5269 	return FAIL;
5270     }
5271     if (VIsual_mode == 'V')
5272     {
5273 	*pp = ml_get_curline();
5274 	*lenp = (int)STRLEN(*pp);
5275     }
5276     else
5277     {
5278 	if (lt(curwin->w_cursor, VIsual))
5279 	{
5280 	    *pp = ml_get_pos(&curwin->w_cursor);
5281 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
5282 	}
5283 	else
5284 	{
5285 	    *pp = ml_get_pos(&VIsual);
5286 	    *lenp = curwin->w_cursor.col - VIsual.col + 1;
5287 	}
5288 #ifdef FEAT_MBYTE
5289 	if (has_mbyte)
5290 	    /* Correct the length to include the whole last character. */
5291 	    *lenp += (*mb_ptr2len)(*pp + (*lenp - 1)) - 1;
5292 #endif
5293     }
5294     reset_VIsual_and_resel();
5295     return OK;
5296 }
5297 #endif
5298 
5299 /*
5300  * CTRL-T: backwards in tag stack
5301  */
5302     static void
5303 nv_tagpop(cap)
5304     cmdarg_T	*cap;
5305 {
5306     if (!checkclearopq(cap->oap))
5307 	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
5308 }
5309 
5310 /*
5311  * Handle scrolling command 'H', 'L' and 'M'.
5312  */
5313     static void
5314 nv_scroll(cap)
5315     cmdarg_T  *cap;
5316 {
5317     int		used = 0;
5318     long	n;
5319 #ifdef FEAT_FOLDING
5320     linenr_T	lnum;
5321 #endif
5322     int		half;
5323 
5324     cap->oap->motion_type = MLINE;
5325     setpcmark();
5326 
5327     if (cap->cmdchar == 'L')
5328     {
5329 	validate_botline();	    /* make sure curwin->w_botline is valid */
5330 	curwin->w_cursor.lnum = curwin->w_botline - 1;
5331 	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
5332 	    curwin->w_cursor.lnum = 1;
5333 	else
5334 	{
5335 #ifdef FEAT_FOLDING
5336 	    if (hasAnyFolding(curwin))
5337 	    {
5338 		/* Count a fold for one screen line. */
5339 		for (n = cap->count1 - 1; n > 0
5340 			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
5341 		{
5342 		    (void)hasFolding(curwin->w_cursor.lnum,
5343 						&curwin->w_cursor.lnum, NULL);
5344 		    --curwin->w_cursor.lnum;
5345 		}
5346 	    }
5347 	    else
5348 #endif
5349 		curwin->w_cursor.lnum -= cap->count1 - 1;
5350 	}
5351     }
5352     else
5353     {
5354 	if (cap->cmdchar == 'M')
5355 	{
5356 #ifdef FEAT_DIFF
5357 	    /* Don't count filler lines above the window. */
5358 	    used -= diff_check_fill(curwin, curwin->w_topline)
5359 							  - curwin->w_topfill;
5360 #endif
5361 	    validate_botline();	    /* make sure w_empty_rows is valid */
5362 	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
5363 	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
5364 	    {
5365 #ifdef FEAT_DIFF
5366 		/* Count half he number of filler lines to be "below this
5367 		 * line" and half to be "above the next line". */
5368 		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
5369 							     + n) / 2 >= half)
5370 		{
5371 		    --n;
5372 		    break;
5373 		}
5374 #endif
5375 		used += plines(curwin->w_topline + n);
5376 		if (used >= half)
5377 		    break;
5378 #ifdef FEAT_FOLDING
5379 		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
5380 		    n = lnum - curwin->w_topline;
5381 #endif
5382 	    }
5383 	    if (n > 0 && used > curwin->w_height)
5384 		--n;
5385 	}
5386 	else /* (cap->cmdchar == 'H') */
5387 	{
5388 	    n = cap->count1 - 1;
5389 #ifdef FEAT_FOLDING
5390 	    if (hasAnyFolding(curwin))
5391 	    {
5392 		/* Count a fold for one screen line. */
5393 		lnum = curwin->w_topline;
5394 		while (n-- > 0 && lnum < curwin->w_botline - 1)
5395 		{
5396 		    hasFolding(lnum, NULL, &lnum);
5397 		    ++lnum;
5398 		}
5399 		n = lnum - curwin->w_topline;
5400 	    }
5401 #endif
5402 	}
5403 	curwin->w_cursor.lnum = curwin->w_topline + n;
5404 	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
5405 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
5406     }
5407 
5408     cursor_correct();	/* correct for 'so' */
5409     beginline(BL_SOL | BL_FIX);
5410 }
5411 
5412 /*
5413  * Cursor right commands.
5414  */
5415     static void
5416 nv_right(cap)
5417     cmdarg_T	*cap;
5418 {
5419     long	n;
5420 #ifdef FEAT_VISUAL
5421     int		PAST_LINE;
5422 #else
5423 # define PAST_LINE 0
5424 #endif
5425 
5426     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5427     {
5428 	/* <C-Right> and <S-Right> move a word or WORD right */
5429 	if (mod_mask & MOD_MASK_CTRL)
5430 	    cap->arg = TRUE;
5431 	nv_wordcmd(cap);
5432 	return;
5433     }
5434 
5435     cap->oap->motion_type = MCHAR;
5436     cap->oap->inclusive = FALSE;
5437 #ifdef FEAT_VISUAL
5438     PAST_LINE = (VIsual_active && *p_sel != 'o');
5439 
5440 # ifdef FEAT_VIRTUALEDIT
5441     /*
5442      * In virtual mode, there's no such thing as "PAST_LINE", as lines are
5443      * (theoretically) infinitly long.
5444      */
5445     if (virtual_active())
5446 	PAST_LINE = 0;
5447 # endif
5448 #endif
5449 
5450     for (n = cap->count1; n > 0; --n)
5451     {
5452 	if ((!PAST_LINE && oneright() == FAIL)
5453 		|| (PAST_LINE && *ml_get_cursor() == NUL))
5454 	{
5455 	    /*
5456 	     *	  <Space> wraps to next line if 'whichwrap' bit 1 set.
5457 	     *	      'l' wraps to next line if 'whichwrap' bit 2 set.
5458 	     * CURS_RIGHT wraps to next line if 'whichwrap' bit 3 set
5459 	     */
5460 	    if (       ((cap->cmdchar == ' '
5461 			    && vim_strchr(p_ww, 's') != NULL)
5462 			|| (cap->cmdchar == 'l'
5463 			    && vim_strchr(p_ww, 'l') != NULL)
5464 			|| (cap->cmdchar == K_RIGHT
5465 			    && vim_strchr(p_ww, '>') != NULL))
5466 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
5467 	    {
5468 		/* When deleting we also count the NL as a character.
5469 		 * Set cap->oap->inclusive when last char in the line is
5470 		 * included, move to next line after that */
5471 		if (	   (cap->oap->op_type == OP_DELETE
5472 			    || cap->oap->op_type == OP_CHANGE)
5473 			&& !cap->oap->inclusive
5474 			&& !lineempty(curwin->w_cursor.lnum))
5475 		    cap->oap->inclusive = TRUE;
5476 		else
5477 		{
5478 		    ++curwin->w_cursor.lnum;
5479 		    curwin->w_cursor.col = 0;
5480 #ifdef FEAT_VIRTUALEDIT
5481 		    curwin->w_cursor.coladd = 0;
5482 #endif
5483 		    curwin->w_set_curswant = TRUE;
5484 		    cap->oap->inclusive = FALSE;
5485 		}
5486 		continue;
5487 	    }
5488 	    if (cap->oap->op_type == OP_NOP)
5489 	    {
5490 		/* Only beep and flush if not moved at all */
5491 		if (n == cap->count1)
5492 		    beep_flush();
5493 	    }
5494 	    else
5495 	    {
5496 		if (!lineempty(curwin->w_cursor.lnum))
5497 		    cap->oap->inclusive = TRUE;
5498 	    }
5499 	    break;
5500 	}
5501 #ifdef FEAT_VISUAL
5502 	else if (PAST_LINE)
5503 	{
5504 	    curwin->w_set_curswant = TRUE;
5505 # ifdef FEAT_VIRTUALEDIT
5506 	    if (virtual_active())
5507 		oneright();
5508 	    else
5509 # endif
5510 	    {
5511 # ifdef FEAT_MBYTE
5512 		if (has_mbyte)
5513 		    curwin->w_cursor.col +=
5514 					 (*mb_ptr2len)(ml_get_cursor());
5515 		else
5516 # endif
5517 		    ++curwin->w_cursor.col;
5518 	    }
5519 	}
5520 #endif
5521     }
5522 #ifdef FEAT_FOLDING
5523     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5524 					       && cap->oap->op_type == OP_NOP)
5525 	foldOpenCursor();
5526 #endif
5527 }
5528 
5529 /*
5530  * Cursor left commands.
5531  *
5532  * Returns TRUE when operator end should not be adjusted.
5533  */
5534     static void
5535 nv_left(cap)
5536     cmdarg_T	*cap;
5537 {
5538     long	n;
5539 
5540     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5541     {
5542 	/* <C-Left> and <S-Left> move a word or WORD left */
5543 	if (mod_mask & MOD_MASK_CTRL)
5544 	    cap->arg = 1;
5545 	nv_bck_word(cap);
5546 	return;
5547     }
5548 
5549     cap->oap->motion_type = MCHAR;
5550     cap->oap->inclusive = FALSE;
5551     for (n = cap->count1; n > 0; --n)
5552     {
5553 	if (oneleft() == FAIL)
5554 	{
5555 	    /* <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
5556 	     *		 'h' wraps to previous line if 'whichwrap' has 'h'.
5557 	     *	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
5558 	     */
5559 	    if (       (((cap->cmdchar == K_BS
5560 				|| cap->cmdchar == Ctrl_H)
5561 			    && vim_strchr(p_ww, 'b') != NULL)
5562 			|| (cap->cmdchar == 'h'
5563 			    && vim_strchr(p_ww, 'h') != NULL)
5564 			|| (cap->cmdchar == K_LEFT
5565 			    && vim_strchr(p_ww, '<') != NULL))
5566 		    && curwin->w_cursor.lnum > 1)
5567 	    {
5568 		--(curwin->w_cursor.lnum);
5569 		coladvance((colnr_T)MAXCOL);
5570 		curwin->w_set_curswant = TRUE;
5571 
5572 		/* When the NL before the first char has to be deleted we
5573 		 * put the cursor on the NUL after the previous line.
5574 		 * This is a very special case, be careful!
5575 		 * don't adjust op_end now, otherwise it won't work */
5576 		if (	   (cap->oap->op_type == OP_DELETE
5577 			    || cap->oap->op_type == OP_CHANGE)
5578 			&& !lineempty(curwin->w_cursor.lnum))
5579 		{
5580 		    ++curwin->w_cursor.col;
5581 		    cap->retval |= CA_NO_ADJ_OP_END;
5582 		}
5583 		continue;
5584 	    }
5585 	    /* Only beep and flush if not moved at all */
5586 	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
5587 		beep_flush();
5588 	    break;
5589 	}
5590     }
5591 #ifdef FEAT_FOLDING
5592     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5593 					       && cap->oap->op_type == OP_NOP)
5594 	foldOpenCursor();
5595 #endif
5596 }
5597 
5598 /*
5599  * Cursor up commands.
5600  * cap->arg is TRUE for "-": Move cursor to first non-blank.
5601  */
5602     static void
5603 nv_up(cap)
5604     cmdarg_T	*cap;
5605 {
5606     if (mod_mask & MOD_MASK_SHIFT)
5607     {
5608 	/* <S-Up> is page up */
5609 	cap->arg = BACKWARD;
5610 	nv_page(cap);
5611     }
5612     else
5613     {
5614 	cap->oap->motion_type = MLINE;
5615 	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5616 	    clearopbeep(cap->oap);
5617 	else if (cap->arg)
5618 	    beginline(BL_WHITE | BL_FIX);
5619     }
5620 }
5621 
5622 /*
5623  * Cursor down commands.
5624  * cap->arg is TRUE for CR and "+": Move cursor to first non-blank.
5625  */
5626     static void
5627 nv_down(cap)
5628     cmdarg_T	*cap;
5629 {
5630     if (mod_mask & MOD_MASK_SHIFT)
5631     {
5632 	/* <S-Down> is page down */
5633 	cap->arg = FORWARD;
5634 	nv_page(cap);
5635     }
5636     else
5637 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5638     /* In a quickfix window a <CR> jumps to the error under the cursor. */
5639     if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
5640 	do_cmdline_cmd((char_u *)".cc");
5641     else
5642 #endif
5643     {
5644 #ifdef FEAT_CMDWIN
5645 	/* In the cmdline window a <CR> executes the command. */
5646 	if (cmdwin_type != 0 && cap->cmdchar == CAR)
5647 	    cmdwin_result = CAR;
5648 	else
5649 #endif
5650 	{
5651 	    cap->oap->motion_type = MLINE;
5652 	    if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5653 		clearopbeep(cap->oap);
5654 	    else if (cap->arg)
5655 		beginline(BL_WHITE | BL_FIX);
5656 	}
5657     }
5658 }
5659 
5660 #ifdef FEAT_SEARCHPATH
5661 /*
5662  * Grab the file name under the cursor and edit it.
5663  */
5664     static void
5665 nv_gotofile(cap)
5666     cmdarg_T	*cap;
5667 {
5668     char_u	*ptr;
5669 
5670 #ifdef FEAT_CMDWIN
5671     if (cmdwin_type != 0)
5672     {
5673 	clearopbeep(cap->oap);
5674 	return;
5675     }
5676 #endif
5677 
5678     ptr = grab_file_name(cap->count1);
5679 
5680     if (ptr != NULL)
5681     {
5682 	/* do autowrite if necessary */
5683 	if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !P_HID(curbuf))
5684 	    autowrite(curbuf, FALSE);
5685 	setpcmark();
5686 	(void)do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
5687 					       P_HID(curbuf) ? ECMD_HIDE : 0);
5688 	vim_free(ptr);
5689     }
5690     else
5691 	clearop(cap->oap);
5692 }
5693 #endif
5694 
5695 /*
5696  * <End> command: to end of current line or last line.
5697  */
5698     static void
5699 nv_end(cap)
5700     cmdarg_T	*cap;
5701 {
5702     if (cap->arg || (mod_mask & MOD_MASK_CTRL))	/* CTRL-END = goto last line */
5703     {
5704 	cap->arg = TRUE;
5705 	nv_goto(cap);
5706 	cap->count1 = 1;		/* to end of current line */
5707     }
5708     nv_dollar(cap);
5709 }
5710 
5711 /*
5712  * Handle the "$" command.
5713  */
5714     static void
5715 nv_dollar(cap)
5716     cmdarg_T	*cap;
5717 {
5718     cap->oap->motion_type = MCHAR;
5719     cap->oap->inclusive = TRUE;
5720 #ifdef FEAT_VIRTUALEDIT
5721     /* In virtual mode when off the edge of a line and an operator
5722      * is pending (whew!) keep the cursor where it is.
5723      * Otherwise, send it to the end of the line. */
5724     if (!virtual_active() || gchar_cursor() != NUL
5725 					       || cap->oap->op_type == OP_NOP)
5726 #endif
5727 	curwin->w_curswant = MAXCOL;	/* so we stay at the end */
5728     if (cursor_down((long)(cap->count1 - 1),
5729 					 cap->oap->op_type == OP_NOP) == FAIL)
5730 	clearopbeep(cap->oap);
5731 #ifdef FEAT_FOLDING
5732     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
5733 	foldOpenCursor();
5734 #endif
5735 }
5736 
5737 /*
5738  * Implementation of '?' and '/' commands.
5739  * If cap->arg is TRUE don't set PC mark.
5740  */
5741     static void
5742 nv_search(cap)
5743     cmdarg_T	    *cap;
5744 {
5745     oparg_T	*oap = cap->oap;
5746 
5747     if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
5748     {
5749 	/* Translate "g??" to "g?g?" */
5750 	cap->cmdchar = 'g';
5751 	cap->nchar = '?';
5752 	nv_operator(cap);
5753 	return;
5754     }
5755 
5756     cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0);
5757 
5758     if (cap->searchbuf == NULL)
5759     {
5760 	clearop(oap);
5761 	return;
5762     }
5763 
5764     normal_search(cap, cap->cmdchar, cap->searchbuf,
5765 						(cap->arg ? 0 : SEARCH_MARK));
5766 }
5767 
5768 /*
5769  * Handle "N" and "n" commands.
5770  * cap->arg is SEARCH_REV for "N", 0 for "n".
5771  */
5772     static void
5773 nv_next(cap)
5774     cmdarg_T	*cap;
5775 {
5776     normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
5777 }
5778 
5779 /*
5780  * Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
5781  * Uses only cap->count1 and cap->oap from "cap".
5782  */
5783     static void
5784 normal_search(cap, dir, pat, opt)
5785     cmdarg_T	*cap;
5786     int		dir;
5787     char_u	*pat;
5788     int		opt;		/* extra flags for do_search() */
5789 {
5790     int		i;
5791 
5792     cap->oap->motion_type = MCHAR;
5793     cap->oap->inclusive = FALSE;
5794     cap->oap->use_reg_one = TRUE;
5795     curwin->w_set_curswant = TRUE;
5796 
5797     i = do_search(cap->oap, dir, pat, cap->count1,
5798 				 opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG);
5799     if (i == 0)
5800 	clearop(cap->oap);
5801     else
5802     {
5803 	if (i == 2)
5804 	    cap->oap->motion_type = MLINE;
5805 #ifdef FEAT_VIRTUALEDIT
5806 	curwin->w_cursor.coladd = 0;
5807 #endif
5808 #ifdef FEAT_FOLDING
5809 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
5810 	    foldOpenCursor();
5811 #endif
5812     }
5813 
5814     /* "/$" will put the cursor after the end of the line, may need to
5815      * correct that here */
5816     check_cursor();
5817 }
5818 
5819 /*
5820  * Character search commands.
5821  * cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', TRUE for
5822  * ',' and FALSE for ';'.
5823  * cap->nchar is NUL for ',' and ';' (repeat the search)
5824  */
5825     static void
5826 nv_csearch(cap)
5827     cmdarg_T	*cap;
5828 {
5829     int		t_cmd;
5830 
5831     if (cap->cmdchar == 't' || cap->cmdchar == 'T')
5832 	t_cmd = TRUE;
5833     else
5834 	t_cmd = FALSE;
5835 
5836     cap->oap->motion_type = MCHAR;
5837     if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
5838 	clearopbeep(cap->oap);
5839     else
5840     {
5841 	curwin->w_set_curswant = TRUE;
5842 #ifdef FEAT_VIRTUALEDIT
5843 	/* Include a Tab for "tx" and for "dfx". */
5844 	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
5845 		&& (t_cmd || cap->oap->op_type != OP_NOP))
5846 	{
5847 	    colnr_T	scol, ecol;
5848 
5849 	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
5850 	    curwin->w_cursor.coladd = ecol - scol;
5851 	}
5852 	else
5853 	    curwin->w_cursor.coladd = 0;
5854 #endif
5855 #ifdef FEAT_VISUAL
5856 	adjust_for_sel(cap);
5857 #endif
5858 #ifdef FEAT_FOLDING
5859 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
5860 	    foldOpenCursor();
5861 #endif
5862     }
5863 }
5864 
5865 /*
5866  * "[" and "]" commands.
5867  * cap->arg is BACKWARD for "[" and FORWARD for "]".
5868  */
5869     static void
5870 nv_brackets(cap)
5871     cmdarg_T	*cap;
5872 {
5873     pos_T	new_pos;
5874     pos_T	prev_pos;
5875     pos_T	*pos = NULL;	    /* init for GCC */
5876     pos_T	old_pos;	    /* cursor position before command */
5877     int		flag;
5878     long	n;
5879     int		findc;
5880     int		c;
5881 
5882     cap->oap->motion_type = MCHAR;
5883     cap->oap->inclusive = FALSE;
5884     old_pos = curwin->w_cursor;
5885 #ifdef FEAT_VIRTUALEDIT
5886     curwin->w_cursor.coladd = 0;	    /* TODO: don't do this for an error. */
5887 #endif
5888 
5889 #ifdef FEAT_SEARCHPATH
5890     /*
5891      * "[f" or "]f" : Edit file under the cursor (same as "gf")
5892      */
5893     if (cap->nchar == 'f')
5894 	nv_gotofile(cap);
5895     else
5896 #endif
5897 
5898 #ifdef FEAT_FIND_ID
5899     /*
5900      * Find the occurence(s) of the identifier or define under cursor
5901      * in current and included files or jump to the first occurence.
5902      *
5903      *			search	     list	    jump
5904      *		      fwd   bwd    fwd	 bwd	 fwd	bwd
5905      * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
5906      * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
5907      */
5908     if (vim_strchr((char_u *)
5909 #ifdef EBCDIC
5910 		"iI\005dD\067",
5911 #else
5912 		"iI\011dD\004",
5913 #endif
5914 		cap->nchar) != NULL)
5915     {
5916 	char_u	*ptr;
5917 	int	len;
5918 
5919 	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
5920 	    clearop(cap->oap);
5921 	else
5922 	{
5923 	    find_pattern_in_path(ptr, 0, len, TRUE,
5924 		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
5925 		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
5926 		cap->count1,
5927 		isupper(cap->nchar) ? ACTION_SHOW_ALL :
5928 			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
5929 		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
5930 		(linenr_T)MAXLNUM);
5931 	    curwin->w_set_curswant = TRUE;
5932 	}
5933     }
5934     else
5935 #endif
5936 
5937     /*
5938      * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
5939      * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
5940      * "[/", "[*", "]/", "]*": go to Nth comment start/end.
5941      * "[m" or "]m" search for prev/next start of (Java) method.
5942      * "[M" or "]M" search for prev/next end of (Java) method.
5943      */
5944     if (  (cap->cmdchar == '['
5945 		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
5946 	    || (cap->cmdchar == ']'
5947 		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
5948     {
5949 	if (cap->nchar == '*')
5950 	    cap->nchar = '/';
5951 	new_pos.lnum = 0;
5952 	prev_pos.lnum = 0;
5953 	if (cap->nchar == 'm' || cap->nchar == 'M')
5954 	{
5955 	    if (cap->cmdchar == '[')
5956 		findc = '{';
5957 	    else
5958 		findc = '}';
5959 	    n = 9999;
5960 	}
5961 	else
5962 	{
5963 	    findc = cap->nchar;
5964 	    n = cap->count1;
5965 	}
5966 	for ( ; n > 0; --n)
5967 	{
5968 	    if ((pos = findmatchlimit(cap->oap, findc,
5969 		(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
5970 	    {
5971 		if (new_pos.lnum == 0)	/* nothing found */
5972 		{
5973 		    if (cap->nchar != 'm' && cap->nchar != 'M')
5974 			clearopbeep(cap->oap);
5975 		}
5976 		else
5977 		    pos = &new_pos;	/* use last one found */
5978 		break;
5979 	    }
5980 	    prev_pos = new_pos;
5981 	    curwin->w_cursor = *pos;
5982 	    new_pos = *pos;
5983 	}
5984 	curwin->w_cursor = old_pos;
5985 
5986 	/*
5987 	 * Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
5988 	 * brought us to the match for "[m" and "]M" when inside a method.
5989 	 * Try finding the '{' or '}' we want to be at.
5990 	 * Also repeat for the given count.
5991 	 */
5992 	if (cap->nchar == 'm' || cap->nchar == 'M')
5993 	{
5994 	    /* norm is TRUE for "]M" and "[m" */
5995 	    int	    norm = ((findc == '{') == (cap->nchar == 'm'));
5996 
5997 	    n = cap->count1;
5998 	    /* found a match: we were inside a method */
5999 	    if (prev_pos.lnum != 0)
6000 	    {
6001 		pos = &prev_pos;
6002 		curwin->w_cursor = prev_pos;
6003 		if (norm)
6004 		    --n;
6005 	    }
6006 	    else
6007 		pos = NULL;
6008 	    while (n > 0)
6009 	    {
6010 		for (;;)
6011 		{
6012 		    if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
6013 		    {
6014 			/* if not found anything, that's an error */
6015 			if (pos == NULL)
6016 			    clearopbeep(cap->oap);
6017 			n = 0;
6018 			break;
6019 		    }
6020 		    c = gchar_cursor();
6021 		    if (c == '{' || c == '}')
6022 		    {
6023 			/* Must have found end/start of class: use it.
6024 			 * Or found the place to be at. */
6025 			if ((c == findc && norm) || (n == 1 && !norm))
6026 			{
6027 			    new_pos = curwin->w_cursor;
6028 			    pos = &new_pos;
6029 			    n = 0;
6030 			}
6031 			/* if no match found at all, we started outside of the
6032 			 * class and we're inside now.  Just go on. */
6033 			else if (new_pos.lnum == 0)
6034 			{
6035 			    new_pos = curwin->w_cursor;
6036 			    pos = &new_pos;
6037 			}
6038 			/* found start/end of other method: go to match */
6039 			else if ((pos = findmatchlimit(cap->oap, findc,
6040 			    (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
6041 								  0)) == NULL)
6042 			    n = 0;
6043 			else
6044 			    curwin->w_cursor = *pos;
6045 			break;
6046 		    }
6047 		}
6048 		--n;
6049 	    }
6050 	    curwin->w_cursor = old_pos;
6051 	    if (pos == NULL && new_pos.lnum != 0)
6052 		clearopbeep(cap->oap);
6053 	}
6054 	if (pos != NULL)
6055 	{
6056 	    setpcmark();
6057 	    curwin->w_cursor = *pos;
6058 	    curwin->w_set_curswant = TRUE;
6059 #ifdef FEAT_FOLDING
6060 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped
6061 					       && cap->oap->op_type == OP_NOP)
6062 		foldOpenCursor();
6063 #endif
6064 	}
6065     }
6066 
6067     /*
6068      * "[[", "[]", "]]" and "][": move to start or end of function
6069      */
6070     else if (cap->nchar == '[' || cap->nchar == ']')
6071     {
6072 	if (cap->nchar == cap->cmdchar)		    /* "]]" or "[[" */
6073 	    flag = '{';
6074 	else
6075 	    flag = '}';		    /* "][" or "[]" */
6076 
6077 	curwin->w_set_curswant = TRUE;
6078 	/*
6079 	 * Imitate strange Vi behaviour: When using "]]" with an operator
6080 	 * we also stop at '}'.
6081 	 */
6082 	if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
6083 	      (cap->oap->op_type != OP_NOP
6084 				      && cap->arg == FORWARD && flag == '{')))
6085 	    clearopbeep(cap->oap);
6086 	else
6087 	{
6088 	    if (cap->oap->op_type == OP_NOP)
6089 		beginline(BL_WHITE | BL_FIX);
6090 #ifdef FEAT_FOLDING
6091 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6092 		foldOpenCursor();
6093 #endif
6094 	}
6095     }
6096 
6097     /*
6098      * "[p", "[P", "]P" and "]p": put with indent adjustment
6099      */
6100     else if (cap->nchar == 'p' || cap->nchar == 'P')
6101     {
6102 	if (!checkclearopq(cap->oap))
6103 	{
6104 	    prep_redo_cmd(cap);
6105 	    do_put(cap->oap->regname,
6106 	      (cap->cmdchar == ']' && cap->nchar == 'p') ? FORWARD : BACKWARD,
6107 						  cap->count1, PUT_FIXINDENT);
6108 	}
6109     }
6110 
6111     /*
6112      * "['", "[`", "]'" and "]`": jump to next mark
6113      */
6114     else if (cap->nchar == '\'' || cap->nchar == '`')
6115     {
6116 	pos = &curwin->w_cursor;
6117 	for (n = cap->count1; n > 0; --n)
6118 	{
6119 	    prev_pos = *pos;
6120 	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
6121 							  cap->nchar == '\'');
6122 	    if (pos == NULL)
6123 		break;
6124 	}
6125 	if (pos == NULL)
6126 	    pos = &prev_pos;
6127 	nv_cursormark(cap, cap->nchar == '\'', pos);
6128     }
6129 
6130 #ifdef FEAT_MOUSE
6131     /*
6132      * [ or ] followed by a middle mouse click: put selected text with
6133      * indent adjustment.  Any other button just does as usual.
6134      */
6135     else if (cap->nchar >= K_LEFTMOUSE && cap->nchar <= K_RIGHTRELEASE)
6136     {
6137 	(void)do_mouse(cap->oap, cap->nchar,
6138 		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
6139 		       cap->count1, PUT_FIXINDENT);
6140     }
6141 #endif /* FEAT_MOUSE */
6142 
6143 #ifdef FEAT_FOLDING
6144     /*
6145      * "[z" and "]z": move to start or end of open fold.
6146      */
6147     else if (cap->nchar == 'z')
6148     {
6149 	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6150 							 cap->count1) == FAIL)
6151 	    clearopbeep(cap->oap);
6152     }
6153 #endif
6154 
6155 #ifdef FEAT_DIFF
6156     /*
6157      * "[c" and "]c": move to next or previous diff-change.
6158      */
6159     else if (cap->nchar == 'c')
6160     {
6161 	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
6162 							 cap->count1) == FAIL)
6163 	    clearopbeep(cap->oap);
6164     }
6165 #endif
6166 
6167 #ifdef FEAT_SYN_HL
6168     /*
6169      * "[s", "[S", "]s" and "]S": move to next spell error.
6170      */
6171     else if (cap->nchar == 's' || cap->nchar == 'S')
6172     {
6173 	setpcmark();
6174 	for (n = 0; n < cap->count1; ++n)
6175 	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6176 			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
6177 	    {
6178 		clearopbeep(cap->oap);
6179 		break;
6180 	    }
6181     }
6182 #endif
6183 
6184     /* Not a valid cap->nchar. */
6185     else
6186 	clearopbeep(cap->oap);
6187 }
6188 
6189 /*
6190  * Handle Normal mode "%" command.
6191  */
6192     static void
6193 nv_percent(cap)
6194     cmdarg_T	*cap;
6195 {
6196     pos_T	*pos;
6197 #ifdef FEAT_FOLDING
6198     linenr_T	lnum = curwin->w_cursor.lnum;
6199 #endif
6200 
6201     cap->oap->inclusive = TRUE;
6202     if (cap->count0)	    /* {cnt}% : goto {cnt} percentage in file */
6203     {
6204 	if (cap->count0 > 100)
6205 	    clearopbeep(cap->oap);
6206 	else
6207 	{
6208 	    cap->oap->motion_type = MLINE;
6209 	    setpcmark();
6210 	    /* Round up, so CTRL-G will give same value.  Watch out for a
6211 	     * large line count, the line number must not go negative! */
6212 	    if (curbuf->b_ml.ml_line_count > 1000000)
6213 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99L)
6214 							 / 100L * cap->count0;
6215 	    else
6216 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
6217 						    cap->count0 + 99L) / 100L;
6218 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
6219 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6220 	    beginline(BL_SOL | BL_FIX);
6221 	}
6222     }
6223     else		    /* "%" : go to matching paren */
6224     {
6225 	cap->oap->motion_type = MCHAR;
6226 	cap->oap->use_reg_one = TRUE;
6227 	if ((pos = findmatch(cap->oap, NUL)) == NULL)
6228 	    clearopbeep(cap->oap);
6229 	else
6230 	{
6231 	    setpcmark();
6232 	    curwin->w_cursor = *pos;
6233 	    curwin->w_set_curswant = TRUE;
6234 #ifdef FEAT_VIRTUALEDIT
6235 	    curwin->w_cursor.coladd = 0;
6236 #endif
6237 #ifdef FEAT_VISUAL
6238 	    adjust_for_sel(cap);
6239 #endif
6240 	}
6241     }
6242 #ifdef FEAT_FOLDING
6243     if (cap->oap->op_type == OP_NOP
6244 	    && lnum != curwin->w_cursor.lnum
6245 	    && (fdo_flags & FDO_PERCENT)
6246 	    && KeyTyped)
6247 	foldOpenCursor();
6248 #endif
6249 }
6250 
6251 /*
6252  * Handle "(" and ")" commands.
6253  * cap->arg is BACKWARD for "(" and FORWARD for ")".
6254  */
6255     static void
6256 nv_brace(cap)
6257     cmdarg_T	*cap;
6258 {
6259     cap->oap->motion_type = MCHAR;
6260     cap->oap->use_reg_one = TRUE;
6261     if (cap->cmdchar == ')')
6262 	cap->oap->inclusive = FALSE;
6263     else
6264 	cap->oap->inclusive = TRUE;
6265     curwin->w_set_curswant = TRUE;
6266 
6267     if (findsent(cap->arg, cap->count1) == FAIL)
6268 	clearopbeep(cap->oap);
6269     else
6270     {
6271 #ifdef FEAT_VIRTUALEDIT
6272 	curwin->w_cursor.coladd = 0;
6273 #endif
6274 #ifdef FEAT_FOLDING
6275 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6276 	    foldOpenCursor();
6277 #endif
6278     }
6279 }
6280 
6281 /*
6282  * "m" command: Mark a position.
6283  */
6284     static void
6285 nv_mark(cap)
6286     cmdarg_T	*cap;
6287 {
6288     if (!checkclearop(cap->oap))
6289     {
6290 	if (setmark(cap->nchar) == FAIL)
6291 	    clearopbeep(cap->oap);
6292     }
6293 }
6294 
6295 /*
6296  * "{" and "}" commands.
6297  * cmd->arg is BACKWARD for "{" and FORWARD for "}".
6298  */
6299     static void
6300 nv_findpar(cap)
6301     cmdarg_T	*cap;
6302 {
6303     cap->oap->motion_type = MCHAR;
6304     cap->oap->inclusive = FALSE;
6305     cap->oap->use_reg_one = TRUE;
6306     curwin->w_set_curswant = TRUE;
6307     if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, FALSE))
6308 	clearopbeep(cap->oap);
6309     else
6310     {
6311 #ifdef FEAT_VIRTUALEDIT
6312 	curwin->w_cursor.coladd = 0;
6313 #endif
6314 #ifdef FEAT_FOLDING
6315 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6316 	    foldOpenCursor();
6317 #endif
6318     }
6319 }
6320 
6321 /*
6322  * "u" command: Undo or make lower case.
6323  */
6324     static void
6325 nv_undo(cap)
6326     cmdarg_T	*cap;
6327 {
6328     if (cap->oap->op_type == OP_LOWER
6329 #ifdef FEAT_VISUAL
6330 	    || VIsual_active
6331 #endif
6332 	    )
6333     {
6334 	/* translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu" */
6335 	cap->cmdchar = 'g';
6336 	cap->nchar = 'u';
6337 	nv_operator(cap);
6338     }
6339     else
6340 	nv_kundo(cap);
6341 }
6342 
6343 /*
6344  * <Undo> command.
6345  */
6346     static void
6347 nv_kundo(cap)
6348     cmdarg_T	*cap;
6349 {
6350     if (!checkclearopq(cap->oap))
6351     {
6352 	u_undo((int)cap->count1);
6353 	curwin->w_set_curswant = TRUE;
6354     }
6355 }
6356 
6357 /*
6358  * Handle the "r" command.
6359  */
6360     static void
6361 nv_replace(cap)
6362     cmdarg_T	*cap;
6363 {
6364     char_u	*ptr;
6365     int		had_ctrl_v;
6366     long	n;
6367 
6368     if (checkclearop(cap->oap))
6369 	return;
6370 
6371     /* get another character */
6372     if (cap->nchar == Ctrl_V)
6373     {
6374 	had_ctrl_v = Ctrl_V;
6375 	cap->nchar = get_literal();
6376 	/* Don't redo a multibyte character with CTRL-V. */
6377 	if (cap->nchar > DEL)
6378 	    had_ctrl_v = NUL;
6379     }
6380     else
6381 	had_ctrl_v = NUL;
6382 
6383 #ifdef FEAT_VISUAL
6384     /* Visual mode "r" */
6385     if (VIsual_active)
6386     {
6387 	nv_operator(cap);
6388 	return;
6389     }
6390 #endif
6391 
6392 #ifdef FEAT_VIRTUALEDIT
6393     /* Break tabs, etc. */
6394     if (virtual_active())
6395     {
6396 	if (u_save_cursor() == FAIL)
6397 	    return;
6398 	if (gchar_cursor() == NUL)
6399 	{
6400 	    /* Add extra space and put the cursor on the first one. */
6401 	    coladvance_force((colnr_T)(getviscol() + cap->count1));
6402 	    curwin->w_cursor.col -= cap->count1;
6403 	}
6404 	else if (gchar_cursor() == TAB)
6405 	    coladvance_force(getviscol());
6406     }
6407 #endif
6408 
6409     /*
6410      * Check for a special key or not enough characters to replace.
6411      */
6412     ptr = ml_get_cursor();
6413     if (IS_SPECIAL(cap->nchar) || STRLEN(ptr) < (unsigned)cap->count1
6414 #ifdef FEAT_MBYTE
6415 	    || (has_mbyte && mb_charlen(ptr) < cap->count1)
6416 #endif
6417 	    )
6418     {
6419 	clearopbeep(cap->oap);
6420 	return;
6421     }
6422 
6423     /*
6424      * Replacing with a TAB is done by edit() when it is complicated because
6425      * 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
6426      * Other characters are done below to avoid problems with things like
6427      * CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
6428      */
6429     if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
6430     {
6431 	stuffnumReadbuff(cap->count1);
6432 	stuffcharReadbuff('R');
6433 	stuffcharReadbuff('\t');
6434 	stuffcharReadbuff(ESC);
6435 	return;
6436     }
6437 
6438     /* save line for undo */
6439     if (u_save_cursor() == FAIL)
6440 	return;
6441 
6442     if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
6443     {
6444 	/*
6445 	 * Replace character(s) by a single newline.
6446 	 * Strange vi behaviour: Only one newline is inserted.
6447 	 * Delete the characters here.
6448 	 * Insert the newline with an insert command, takes care of
6449 	 * autoindent.	The insert command depends on being on the last
6450 	 * character of a line or not.
6451 	 */
6452 #ifdef FEAT_MBYTE
6453 	(void)del_chars(cap->count1, FALSE);	/* delete the characters */
6454 #else
6455 	(void)del_bytes(cap->count1, FALSE);	/* delete the characters */
6456 #endif
6457 	stuffcharReadbuff('\r');
6458 	stuffcharReadbuff(ESC);
6459 
6460 	/* Give 'r' to edit(), to get the redo command right. */
6461 	invoke_edit(cap, TRUE, 'r', FALSE);
6462     }
6463     else
6464     {
6465 	prep_redo(cap->oap->regname, cap->count1,
6466 				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);
6467 
6468 	curbuf->b_op_start = curwin->w_cursor;
6469 #ifdef FEAT_MBYTE
6470 	if (has_mbyte)
6471 	{
6472 	    int		old_State = State;
6473 
6474 	    if (cap->ncharC1 != 0)
6475 		AppendCharToRedobuff(cap->ncharC1);
6476 	    if (cap->ncharC2 != 0)
6477 		AppendCharToRedobuff(cap->ncharC2);
6478 
6479 	    /* This is slow, but it handles replacing a single-byte with a
6480 	     * multi-byte and the other way around.  Also handles adding
6481 	     * composing characters for utf-8. */
6482 	    for (n = cap->count1; n > 0; --n)
6483 	    {
6484 		State = REPLACE;
6485 		ins_char(cap->nchar);
6486 		State = old_State;
6487 		if (cap->ncharC1 != 0)
6488 		    ins_char(cap->ncharC1);
6489 		if (cap->ncharC2 != 0)
6490 		    ins_char(cap->ncharC2);
6491 	    }
6492 	}
6493 	else
6494 #endif
6495 	{
6496 	    /*
6497 	     * Replace the characters within one line.
6498 	     */
6499 	    for (n = cap->count1; n > 0; --n)
6500 	    {
6501 		/*
6502 		 * Get ptr again, because u_save and/or showmatch() will have
6503 		 * released the line.  At the same time we let know that the
6504 		 * line will be changed.
6505 		 */
6506 		ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
6507 		ptr[curwin->w_cursor.col] = cap->nchar;
6508 		if (p_sm && msg_silent == 0)
6509 		    showmatch(cap->nchar);
6510 		++curwin->w_cursor.col;
6511 	    }
6512 #ifdef FEAT_NETBEANS_INTG
6513 	    if (usingNetbeans)
6514 	    {
6515 		colnr_T start = (colnr_T)(curwin->w_cursor.col - cap->count1);
6516 
6517 		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
6518 							    (long)cap->count1);
6519 		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
6520 					       &ptr[start], (int)cap->count1);
6521 	    }
6522 #endif
6523 
6524 	    /* mark the buffer as changed and prepare for displaying */
6525 	    changed_bytes(curwin->w_cursor.lnum,
6526 			       (colnr_T)(curwin->w_cursor.col - cap->count1));
6527 	}
6528 	--curwin->w_cursor.col;	    /* cursor on the last replaced char */
6529 #ifdef FEAT_MBYTE
6530 	/* if the character on the left of the current cursor is a multi-byte
6531 	 * character, move two characters left */
6532 	if (has_mbyte)
6533 	    mb_adjust_cursor();
6534 #endif
6535 	curbuf->b_op_end = curwin->w_cursor;
6536 	curwin->w_set_curswant = TRUE;
6537 	set_last_insert(cap->nchar);
6538     }
6539 }
6540 
6541 #ifdef FEAT_VISUAL
6542 /*
6543  * 'o': Exchange start and end of Visual area.
6544  * 'O': same, but in block mode exchange left and right corners.
6545  */
6546     static void
6547 v_swap_corners(cmdchar)
6548     int		cmdchar;
6549 {
6550     pos_T	old_cursor;
6551     colnr_T	left, right;
6552 
6553     if (cmdchar == 'O' && VIsual_mode == Ctrl_V)
6554     {
6555 	old_cursor = curwin->w_cursor;
6556 	getvcols(curwin, &old_cursor, &VIsual, &left, &right);
6557 	curwin->w_cursor.lnum = VIsual.lnum;
6558 	coladvance(left);
6559 	VIsual = curwin->w_cursor;
6560 
6561 	curwin->w_cursor.lnum = old_cursor.lnum;
6562 	curwin->w_curswant = right;
6563 	/* 'selection "exclusive" and cursor at right-bottom corner: move it
6564 	 * right one column */
6565 	if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e')
6566 	    ++curwin->w_curswant;
6567 	coladvance(curwin->w_curswant);
6568 	if (curwin->w_cursor.col == old_cursor.col
6569 #ifdef FEAT_VIRTUALEDIT
6570 		&& (!virtual_active()
6571 		    || curwin->w_cursor.coladd == old_cursor.coladd)
6572 #endif
6573 		)
6574 	{
6575 	    curwin->w_cursor.lnum = VIsual.lnum;
6576 	    if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e')
6577 		++right;
6578 	    coladvance(right);
6579 	    VIsual = curwin->w_cursor;
6580 
6581 	    curwin->w_cursor.lnum = old_cursor.lnum;
6582 	    coladvance(left);
6583 	    curwin->w_curswant = left;
6584 	}
6585     }
6586     else
6587     {
6588 	old_cursor = curwin->w_cursor;
6589 	curwin->w_cursor = VIsual;
6590 	VIsual = old_cursor;
6591 	curwin->w_set_curswant = TRUE;
6592     }
6593 }
6594 #endif /* FEAT_VISUAL */
6595 
6596 /*
6597  * "R" (cap->arg is FALSE) and "gR" (cap->arg is TRUE).
6598  */
6599     static void
6600 nv_Replace(cap)
6601     cmdarg_T	    *cap;
6602 {
6603 #ifdef FEAT_VISUAL
6604     if (VIsual_active)		/* "R" is replace lines */
6605     {
6606 	cap->cmdchar = 'c';
6607 	cap->nchar = NUL;
6608 	VIsual_mode = 'V';
6609 	nv_operator(cap);
6610     }
6611     else
6612 #endif
6613 	if (!checkclearopq(cap->oap))
6614     {
6615 	if (!curbuf->b_p_ma)
6616 	    EMSG(_(e_modifiable));
6617 	else
6618 	{
6619 #ifdef FEAT_VIRTUALEDIT
6620 	    if (virtual_active())
6621 		coladvance(getviscol());
6622 #endif
6623 	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
6624 	}
6625     }
6626 }
6627 
6628 #ifdef FEAT_VREPLACE
6629 /*
6630  * "gr".
6631  */
6632     static void
6633 nv_vreplace(cap)
6634     cmdarg_T	*cap;
6635 {
6636 # ifdef FEAT_VISUAL
6637     if (VIsual_active)
6638     {
6639 	cap->cmdchar = 'r';
6640 	cap->nchar = cap->extra_char;
6641 	nv_replace(cap);	/* Do same as "r" in Visual mode for now */
6642     }
6643     else
6644 # endif
6645 	if (!checkclearopq(cap->oap))
6646     {
6647 	if (!curbuf->b_p_ma)
6648 	    EMSG(_(e_modifiable));
6649 	else
6650 	{
6651 	    if (cap->extra_char == Ctrl_V)	/* get another character */
6652 		cap->extra_char = get_literal();
6653 	    stuffcharReadbuff(cap->extra_char);
6654 	    stuffcharReadbuff(ESC);
6655 # ifdef FEAT_VIRTUALEDIT
6656 	    if (virtual_active())
6657 		coladvance(getviscol());
6658 # endif
6659 	    invoke_edit(cap, TRUE, 'v', FALSE);
6660 	}
6661     }
6662 }
6663 #endif
6664 
6665 /*
6666  * Swap case for "~" command, when it does not work like an operator.
6667  */
6668     static void
6669 n_swapchar(cap)
6670     cmdarg_T	*cap;
6671 {
6672     long	n;
6673     pos_T	startpos;
6674     int		did_change = 0;
6675 #ifdef FEAT_NETBEANS_INTG
6676     pos_T	pos;
6677     char_u	*ptr;
6678     int		count;
6679 #endif
6680 
6681     if (checkclearopq(cap->oap))
6682 	return;
6683 
6684     if (lineempty(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
6685     {
6686 	clearopbeep(cap->oap);
6687 	return;
6688     }
6689 
6690     prep_redo_cmd(cap);
6691 
6692     if (u_save_cursor() == FAIL)
6693 	return;
6694 
6695     startpos = curwin->w_cursor;
6696 #ifdef FEAT_NETBEANS_INTG
6697     pos = startpos;
6698 #endif
6699     for (n = cap->count1; n > 0; --n)
6700     {
6701 	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
6702 	inc_cursor();
6703 	if (gchar_cursor() == NUL)
6704 	{
6705 	    if (vim_strchr(p_ww, '~') != NULL
6706 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
6707 	    {
6708 #ifdef FEAT_NETBEANS_INTG
6709 		if (usingNetbeans)
6710 		{
6711 		    if (did_change)
6712 		    {
6713 			ptr = ml_get(pos.lnum);
6714 			count = STRLEN(ptr) - pos.col;
6715 			netbeans_removed(curbuf, pos.lnum, pos.col,
6716 								 (long)count);
6717 			netbeans_inserted(curbuf, pos.lnum, pos.col,
6718 							&ptr[pos.col], count);
6719 		    }
6720 		    pos.col = 0;
6721 		    pos.lnum++;
6722 		}
6723 #endif
6724 		++curwin->w_cursor.lnum;
6725 		curwin->w_cursor.col = 0;
6726 		if (n > 1)
6727 		{
6728 		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
6729 			break;
6730 		    u_clearline();
6731 		}
6732 	    }
6733 	    else
6734 		break;
6735 	}
6736     }
6737 #ifdef FEAT_NETBEANS_INTG
6738     if (did_change && usingNetbeans)
6739     {
6740 	ptr = ml_get(pos.lnum);
6741 	count = curwin->w_cursor.col - pos.col;
6742 	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
6743 	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
6744     }
6745 #endif
6746 
6747 
6748     check_cursor();
6749     curwin->w_set_curswant = TRUE;
6750     if (did_change)
6751     {
6752 	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
6753 									  0L);
6754 	curbuf->b_op_start = startpos;
6755 	curbuf->b_op_end = curwin->w_cursor;
6756 	if (curbuf->b_op_end.col > 0)
6757 	    --curbuf->b_op_end.col;
6758     }
6759 }
6760 
6761 /*
6762  * Move cursor to mark.
6763  */
6764     static void
6765 nv_cursormark(cap, flag, pos)
6766     cmdarg_T	*cap;
6767     int		flag;
6768     pos_T	*pos;
6769 {
6770     if (check_mark(pos) == FAIL)
6771 	clearop(cap->oap);
6772     else
6773     {
6774 	if (cap->cmdchar == '\''
6775 		|| cap->cmdchar == '`'
6776 		|| cap->cmdchar == '['
6777 		|| cap->cmdchar == ']')
6778 	    setpcmark();
6779 	curwin->w_cursor = *pos;
6780 	if (flag)
6781 	    beginline(BL_WHITE | BL_FIX);
6782 	else
6783 	    check_cursor();
6784     }
6785     cap->oap->motion_type = flag ? MLINE : MCHAR;
6786     if (cap->cmdchar == '`')
6787 	cap->oap->use_reg_one = TRUE;
6788     cap->oap->inclusive = FALSE;		/* ignored if not MCHAR */
6789     curwin->w_set_curswant = TRUE;
6790 }
6791 
6792 #ifdef FEAT_VISUAL
6793 /*
6794  * Handle commands that are operators in Visual mode.
6795  */
6796     static void
6797 v_visop(cap)
6798     cmdarg_T	*cap;
6799 {
6800     static char_u trans[] = "YyDdCcxdXdAAIIrr";
6801 
6802     /* Uppercase means linewise, except in block mode, then "D" deletes till
6803      * the end of the line, and "C" replaces til EOL */
6804     if (isupper(cap->cmdchar))
6805     {
6806 	if (VIsual_mode != Ctrl_V)
6807 	    VIsual_mode = 'V';
6808 	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
6809 	    curwin->w_curswant = MAXCOL;
6810     }
6811     cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
6812     nv_operator(cap);
6813 }
6814 #endif
6815 
6816 /*
6817  * "s" and "S" commands.
6818  */
6819     static void
6820 nv_subst(cap)
6821     cmdarg_T	*cap;
6822 {
6823 #ifdef FEAT_VISUAL
6824     if (VIsual_active)	/* "vs" and "vS" are the same as "vc" */
6825     {
6826 	if (cap->cmdchar == 'S')
6827 	    VIsual_mode = 'V';
6828 	cap->cmdchar = 'c';
6829 	nv_operator(cap);
6830     }
6831     else
6832 #endif
6833 	nv_optrans(cap);
6834 }
6835 
6836 /*
6837  * Abbreviated commands.
6838  */
6839     static void
6840 nv_abbrev(cap)
6841     cmdarg_T	*cap;
6842 {
6843     if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
6844 	cap->cmdchar = 'x';		/* DEL key behaves like 'x' */
6845 
6846 #ifdef FEAT_VISUAL
6847     /* in Visual mode these commands are operators */
6848     if (VIsual_active)
6849 	v_visop(cap);
6850     else
6851 #endif
6852 	nv_optrans(cap);
6853 }
6854 
6855 /*
6856  * Translate a command into another command.
6857  */
6858     static void
6859 nv_optrans(cap)
6860     cmdarg_T	*cap;
6861 {
6862     static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
6863 			      (char_u *)"d$", (char_u *)"c$",
6864 			      (char_u *)"cl", (char_u *)"cc",
6865 			      (char_u *)"yy", (char_u *)":s\r"};
6866     static char_u *str = (char_u *)"xXDCsSY&";
6867 
6868     if (!checkclearopq(cap->oap))
6869     {
6870 	/* In Vi "2D" doesn't delete the next line.  Can't translate it
6871 	 * either, because "2." should also not use the count. */
6872 	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
6873 	{
6874 	    cap->oap->start = curwin->w_cursor;
6875 	    cap->oap->op_type = OP_DELETE;
6876 	    cap->count1 = 1;
6877 	    nv_dollar(cap);
6878 	    finish_op = TRUE;
6879 	    ResetRedobuff();
6880 	    AppendCharToRedobuff('D');
6881 	}
6882 	else
6883 	{
6884 	    if (cap->count0)
6885 		stuffnumReadbuff(cap->count0);
6886 	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
6887 	}
6888     }
6889     cap->opcount = 0;
6890 }
6891 
6892 /*
6893  * "'" and "`" commands.  Also for "g'" and "g`".
6894  * cap->arg is TRUE for "'" and "g'".
6895  */
6896     static void
6897 nv_gomark(cap)
6898     cmdarg_T	*cap;
6899 {
6900     pos_T	*pos;
6901     int		c;
6902 #ifdef FEAT_FOLDING
6903     linenr_T	lnum = curwin->w_cursor.lnum;
6904     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
6905 #endif
6906 
6907     if (cap->cmdchar == 'g')
6908 	c = cap->extra_char;
6909     else
6910 	c = cap->nchar;
6911     pos = getmark(c, (cap->oap->op_type == OP_NOP));
6912     if (pos == (pos_T *)-1)	    /* jumped to other file */
6913     {
6914 	if (cap->arg)
6915 	{
6916 	    check_cursor_lnum();
6917 	    beginline(BL_WHITE | BL_FIX);
6918 	}
6919 	else
6920 	    check_cursor();
6921     }
6922     else
6923 	nv_cursormark(cap, cap->arg, pos);
6924 
6925 #ifdef FEAT_VIRTUALEDIT
6926     /* May need to clear the coladd that a mark includes. */
6927     if (!virtual_active())
6928 	curwin->w_cursor.coladd = 0;
6929 #endif
6930 #ifdef FEAT_FOLDING
6931     if (cap->oap->op_type == OP_NOP
6932 	    && (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
6933 	    && (fdo_flags & FDO_MARK)
6934 	    && old_KeyTyped)
6935 	foldOpenCursor();
6936 #endif
6937 }
6938 
6939 /*
6940  * Handle CTRL-O, CTRL-I, "g;" and "g," commands.
6941  */
6942     static void
6943 nv_pcmark(cap)
6944     cmdarg_T	*cap;
6945 {
6946 #ifdef FEAT_JUMPLIST
6947     pos_T	*pos;
6948 # ifdef FEAT_FOLDING
6949     linenr_T	lnum = curwin->w_cursor.lnum;
6950     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
6951 # endif
6952 
6953     if (!checkclearopq(cap->oap))
6954     {
6955 	if (cap->cmdchar == 'g')
6956 	    pos = movechangelist((int)cap->count1);
6957 	else
6958 	    pos = movemark((int)cap->count1);
6959 	if (pos == (pos_T *)-1)		/* jump to other file */
6960 	{
6961 	    curwin->w_set_curswant = TRUE;
6962 	    check_cursor();
6963 	}
6964 	else if (pos != NULL)		    /* can jump */
6965 	    nv_cursormark(cap, FALSE, pos);
6966 	else if (cap->cmdchar == 'g')
6967 	{
6968 	    if (curbuf->b_changelistlen == 0)
6969 		EMSG(_("E664: changelist is empty"));
6970 	    else if (cap->count1 < 0)
6971 		EMSG(_("E662: At start of changelist"));
6972 	    else
6973 		EMSG(_("E663: At end of changelist"));
6974 	}
6975 	else
6976 	    clearopbeep(cap->oap);
6977 # ifdef FEAT_FOLDING
6978 	if (cap->oap->op_type == OP_NOP
6979 		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
6980 		&& (fdo_flags & FDO_MARK)
6981 		&& old_KeyTyped)
6982 	    foldOpenCursor();
6983 # endif
6984     }
6985 #else
6986     clearopbeep(cap->oap);
6987 #endif
6988 }
6989 
6990 /*
6991  * Handle '"' command.
6992  */
6993     static void
6994 nv_regname(cap)
6995     cmdarg_T	*cap;
6996 {
6997     if (checkclearop(cap->oap))
6998 	return;
6999 #ifdef FEAT_EVAL
7000     if (cap->nchar == '=')
7001 	cap->nchar = get_expr_register();
7002 #endif
7003     if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
7004     {
7005 	cap->oap->regname = cap->nchar;
7006 	cap->opcount = cap->count0;	/* remember count before '"' */
7007 #ifdef FEAT_EVAL
7008 	set_reg_var(cap->oap->regname);
7009 #endif
7010     }
7011     else
7012 	clearopbeep(cap->oap);
7013 }
7014 
7015 #ifdef FEAT_VISUAL
7016 /*
7017  * Handle "v", "V" and "CTRL-V" commands.
7018  * Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
7019  * is TRUE.
7020  * Handle CTRL-Q just like CTRL-V.
7021  */
7022     static void
7023 nv_visual(cap)
7024     cmdarg_T	*cap;
7025 {
7026     if (cap->cmdchar == Ctrl_Q)
7027 	cap->cmdchar = Ctrl_V;
7028 
7029     /* 'v', 'V' and CTRL-V can be used while an operator is pending to make it
7030      * characterwise, linewise, or blockwise. */
7031     if (cap->oap->op_type != OP_NOP)
7032     {
7033 	cap->oap->motion_force = cap->cmdchar;
7034 	finish_op = FALSE;	/* operator doesn't finish now but later */
7035 	return;
7036     }
7037 
7038     VIsual_select = cap->arg;
7039     if (VIsual_active)	    /* change Visual mode */
7040     {
7041 	if (VIsual_mode == cap->cmdchar)    /* stop visual mode */
7042 	    end_visual_mode();
7043 	else				    /* toggle char/block mode */
7044 	{				    /*	   or char/line mode */
7045 	    VIsual_mode = cap->cmdchar;
7046 	    showmode();
7047 	}
7048 	redraw_curbuf_later(INVERTED);	    /* update the inversion */
7049     }
7050     else		    /* start Visual mode */
7051     {
7052 	check_visual_highlight();
7053 	if (cap->count0)		    /* use previously selected part */
7054 	{
7055 	    if (resel_VIsual_mode == NUL)   /* there is none */
7056 	    {
7057 		beep_flush();
7058 		return;
7059 	    }
7060 	    VIsual = curwin->w_cursor;
7061 
7062 	    VIsual_active = TRUE;
7063 	    VIsual_reselect = TRUE;
7064 	    if (!cap->arg)
7065 		/* start Select mode when 'selectmode' contains "cmd" */
7066 		may_start_select('c');
7067 #ifdef FEAT_MOUSE
7068 	    setmouse();
7069 #endif
7070 	    if (p_smd)
7071 		redraw_cmdline = TRUE;	    /* show visual mode later */
7072 	    /*
7073 	     * For V and ^V, we multiply the number of lines even if there
7074 	     * was only one -- webb
7075 	     */
7076 	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
7077 	    {
7078 		curwin->w_cursor.lnum +=
7079 				    resel_VIsual_line_count * cap->count0 - 1;
7080 		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
7081 		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
7082 	    }
7083 	    VIsual_mode = resel_VIsual_mode;
7084 	    if (VIsual_mode == 'v')
7085 	    {
7086 		if (resel_VIsual_line_count <= 1)
7087 		    curwin->w_cursor.col += resel_VIsual_col * cap->count0 - 1;
7088 		else
7089 		    curwin->w_cursor.col = resel_VIsual_col;
7090 		check_cursor_col();
7091 	    }
7092 	    if (resel_VIsual_col == MAXCOL)
7093 	    {
7094 		curwin->w_curswant = MAXCOL;
7095 		coladvance((colnr_T)MAXCOL);
7096 	    }
7097 	    else if (VIsual_mode == Ctrl_V)
7098 	    {
7099 		validate_virtcol();
7100 		curwin->w_curswant = curwin->w_virtcol
7101 					 + resel_VIsual_col * cap->count0 - 1;
7102 		coladvance(curwin->w_curswant);
7103 	    }
7104 	    else
7105 		curwin->w_set_curswant = TRUE;
7106 	    redraw_curbuf_later(INVERTED);	/* show the inversion */
7107 	}
7108 	else
7109 	{
7110 	    if (!cap->arg)
7111 		/* start Select mode when 'selectmode' contains "cmd" */
7112 		may_start_select('c');
7113 	    n_start_visual_mode(cap->cmdchar);
7114 	}
7115     }
7116 }
7117 
7118 /*
7119  * Start selection for Shift-movement keys.
7120  */
7121     void
7122 start_selection()
7123 {
7124     /* if 'selectmode' contains "key", start Select mode */
7125     may_start_select('k');
7126     n_start_visual_mode('v');
7127 }
7128 
7129 /*
7130  * Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
7131  */
7132     void
7133 may_start_select(c)
7134     int		c;
7135 {
7136     VIsual_select = (stuff_empty() && typebuf_typed()
7137 		    && (vim_strchr(p_slm, c) != NULL));
7138 }
7139 
7140 /*
7141  * Start Visual mode "c".
7142  * Should set VIsual_select before calling this.
7143  */
7144     static void
7145 n_start_visual_mode(c)
7146     int		c;
7147 {
7148     VIsual_mode = c;
7149     VIsual_active = TRUE;
7150     VIsual_reselect = TRUE;
7151 #ifdef FEAT_VIRTUALEDIT
7152     /* Corner case: the 0 position in a tab may change when going into
7153      * virtualedit.  Recalculate curwin->w_cursor to avoid bad hilighting.
7154      */
7155     if (c == Ctrl_V && (ve_flags & VE_BLOCK) && gchar_cursor() == TAB)
7156 	coladvance(curwin->w_virtcol);
7157 #endif
7158     VIsual = curwin->w_cursor;
7159 
7160 #ifdef FEAT_FOLDING
7161     foldAdjustVisual();
7162 #endif
7163 
7164 #ifdef FEAT_MOUSE
7165     setmouse();
7166 #endif
7167     if (p_smd)
7168 	redraw_cmdline = TRUE;	/* show visual mode later */
7169 #ifdef FEAT_CLIPBOARD
7170     /* Make sure the clipboard gets updated.  Needed because start and
7171      * end may still be the same, and the selection needs to be owned */
7172     clip_star.vmode = NUL;
7173 #endif
7174 
7175     /* Only need to redraw this line, unless still need to redraw an old
7176      * Visual area (when 'lazyredraw' is set). */
7177     if (curwin->w_redr_type < INVERTED)
7178     {
7179 	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
7180 	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
7181     }
7182 }
7183 
7184 #endif /* FEAT_VISUAL */
7185 
7186 /*
7187  * CTRL-W: Window commands
7188  */
7189     static void
7190 nv_window(cap)
7191     cmdarg_T	*cap;
7192 {
7193 #ifdef FEAT_WINDOWS
7194     if (!checkclearop(cap->oap))
7195 	do_window(cap->nchar, cap->count0, NUL); /* everything is in window.c */
7196 #else
7197     (void)checkclearop(cap->oap);
7198 #endif
7199 }
7200 
7201 /*
7202  * CTRL-Z: Suspend
7203  */
7204     static void
7205 nv_suspend(cap)
7206     cmdarg_T	*cap;
7207 {
7208     clearop(cap->oap);
7209 #ifdef FEAT_VISUAL
7210     if (VIsual_active)
7211 	end_visual_mode();		/* stop Visual mode */
7212 #endif
7213     do_cmdline_cmd((char_u *)"st");
7214 }
7215 
7216 /*
7217  * Commands starting with "g".
7218  */
7219     static void
7220 nv_g_cmd(cap)
7221     cmdarg_T	*cap;
7222 {
7223     oparg_T	*oap = cap->oap;
7224 #ifdef FEAT_VISUAL
7225     pos_T	tpos;
7226 #endif
7227     int		i;
7228     int		flag = FALSE;
7229 
7230     switch (cap->nchar)
7231     {
7232 #ifdef MEM_PROFILE
7233     /*
7234      * "g^A": dump log of used memory.
7235      */
7236     case Ctrl_A:
7237 	vim_mem_profile_dump();
7238 	break;
7239 #endif
7240 
7241 #ifdef FEAT_VREPLACE
7242     /*
7243      * "gR": Enter virtual replace mode.
7244      */
7245     case 'R':
7246 	cap->arg = TRUE;
7247 	nv_Replace(cap);
7248 	break;
7249 
7250     case 'r':
7251 	nv_vreplace(cap);
7252 	break;
7253 #endif
7254 
7255     case '&':
7256 	do_cmdline_cmd((char_u *)"%s//~/&");
7257 	break;
7258 
7259 #ifdef FEAT_VISUAL
7260     /*
7261      * "gv": Reselect the previous Visual area.  If Visual already active,
7262      *	     exchange previous and current Visual area.
7263      */
7264     case 'v':
7265 	if (checkclearop(oap))
7266 	    break;
7267 
7268 	if (	   curbuf->b_visual_start.lnum == 0
7269 		|| curbuf->b_visual_start.lnum > curbuf->b_ml.ml_line_count
7270 		|| curbuf->b_visual_end.lnum == 0)
7271 	    beep_flush();
7272 	else
7273 	{
7274 	    /* set w_cursor to the start of the Visual area, tpos to the end */
7275 	    if (VIsual_active)
7276 	    {
7277 		i = VIsual_mode;
7278 		VIsual_mode = curbuf->b_visual_mode;
7279 		curbuf->b_visual_mode = i;
7280 # ifdef FEAT_EVAL
7281 		curbuf->b_visual_mode_eval = i;
7282 # endif
7283 		i = curwin->w_curswant;
7284 		curwin->w_curswant = curbuf->b_visual_curswant;
7285 		curbuf->b_visual_curswant = i;
7286 
7287 		tpos = curbuf->b_visual_end;
7288 		curbuf->b_visual_end = curwin->w_cursor;
7289 		curwin->w_cursor = curbuf->b_visual_start;
7290 		curbuf->b_visual_start = VIsual;
7291 	    }
7292 	    else
7293 	    {
7294 		VIsual_mode = curbuf->b_visual_mode;
7295 		curwin->w_curswant = curbuf->b_visual_curswant;
7296 		tpos = curbuf->b_visual_end;
7297 		curwin->w_cursor = curbuf->b_visual_start;
7298 	    }
7299 
7300 	    VIsual_active = TRUE;
7301 	    VIsual_reselect = TRUE;
7302 
7303 	    /* Set Visual to the start and w_cursor to the end of the Visual
7304 	     * area.  Make sure they are on an existing character. */
7305 	    check_cursor();
7306 	    VIsual = curwin->w_cursor;
7307 	    curwin->w_cursor = tpos;
7308 	    check_cursor();
7309 	    update_topline();
7310 	    /*
7311 	     * When called from normal "g" command: start Select mode when
7312 	     * 'selectmode' contains "cmd".  When called for K_SELECT, always
7313 	     * start Select mode.
7314 	     */
7315 	    if (cap->arg)
7316 		VIsual_select = TRUE;
7317 	    else
7318 		may_start_select('c');
7319 #ifdef FEAT_MOUSE
7320 	    setmouse();
7321 #endif
7322 #ifdef FEAT_CLIPBOARD
7323 	    /* Make sure the clipboard gets updated.  Needed because start and
7324 	     * end are still the same, and the selection needs to be owned */
7325 	    clip_star.vmode = NUL;
7326 #endif
7327 	    redraw_curbuf_later(INVERTED);
7328 	    showmode();
7329 	}
7330 	break;
7331     /*
7332      * "gV": Don't reselect the previous Visual area after a Select mode
7333      *	     mapping of menu.
7334      */
7335     case 'V':
7336 	VIsual_reselect = FALSE;
7337 	break;
7338 
7339     /*
7340      * "gh":  start Select mode.
7341      * "gH":  start Select line mode.
7342      * "g^H": start Select block mode.
7343      */
7344     case K_BS:
7345 	cap->nchar = Ctrl_H;
7346 	/* FALLTHROUGH */
7347     case 'h':
7348     case 'H':
7349     case Ctrl_H:
7350 # ifdef EBCDIC
7351 	/* EBCDIC: 'v'-'h' != '^v'-'^h' */
7352 	if (cap->nchar == Ctrl_H)
7353 	    cap->cmdchar = Ctrl_V;
7354 	else
7355 # endif
7356 	cap->cmdchar = cap->nchar + ('v' - 'h');
7357 	cap->arg = TRUE;
7358 	nv_visual(cap);
7359 	break;
7360 #endif /* FEAT_VISUAL */
7361 
7362     /*
7363      * "gj" and "gk" two new funny movement keys -- up and down
7364      * movement based on *screen* line rather than *file* line.
7365      */
7366     case 'j':
7367     case K_DOWN:
7368 	/* with 'nowrap' it works just like the normal "j" command; also when
7369 	 * in a closed fold */
7370 	if (!curwin->w_p_wrap
7371 #ifdef FEAT_FOLDING
7372 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7373 #endif
7374 		)
7375 	{
7376 	    oap->motion_type = MLINE;
7377 	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
7378 	}
7379 	else
7380 	    i = nv_screengo(oap, FORWARD, cap->count1);
7381 	if (i == FAIL)
7382 	    clearopbeep(oap);
7383 	break;
7384 
7385     case 'k':
7386     case K_UP:
7387 	/* with 'nowrap' it works just like the normal "k" command; also when
7388 	 * in a closed fold */
7389 	if (!curwin->w_p_wrap
7390 #ifdef FEAT_FOLDING
7391 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7392 #endif
7393 	   )
7394 	{
7395 	    oap->motion_type = MLINE;
7396 	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
7397 	}
7398 	else
7399 	    i = nv_screengo(oap, BACKWARD, cap->count1);
7400 	if (i == FAIL)
7401 	    clearopbeep(oap);
7402 	break;
7403 
7404     /*
7405      * "gJ": join two lines without inserting a space.
7406      */
7407     case 'J':
7408 	nv_join(cap);
7409 	break;
7410 
7411     /*
7412      * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
7413      * "gm": middle of "g0" and "g$".
7414      */
7415     case '^':
7416 	flag = TRUE;
7417 	/* FALLTHROUGH */
7418 
7419     case '0':
7420     case 'm':
7421     case K_HOME:
7422     case K_KHOME:
7423 	oap->motion_type = MCHAR;
7424 	oap->inclusive = FALSE;
7425 	if (curwin->w_p_wrap
7426 #ifdef FEAT_VERTSPLIT
7427 		&& curwin->w_width != 0
7428 #endif
7429 		)
7430 	{
7431 	    int		width1 = W_WIDTH(curwin) - curwin_col_off();
7432 	    int		width2 = width1 + curwin_col_off2();
7433 
7434 	    validate_virtcol();
7435 	    i = 0;
7436 	    if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
7437 		i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
7438 	}
7439 	else
7440 	    i = curwin->w_leftcol;
7441 	/* Go to the middle of the screen line.  When 'number' is on and lines
7442 	 * are wrapping the middle can be more to the left.*/
7443 	if (cap->nchar == 'm')
7444 	    i += (W_WIDTH(curwin) - curwin_col_off()
7445 		    + ((curwin->w_p_wrap && i > 0)
7446 			? curwin_col_off2() : 0)) / 2;
7447 	coladvance((colnr_T)i);
7448 	if (flag)
7449 	{
7450 	    do
7451 		i = gchar_cursor();
7452 	    while (vim_iswhite(i) && oneright() == OK);
7453 	}
7454 	curwin->w_set_curswant = TRUE;
7455 	break;
7456 
7457     case '_':
7458 	/* "g_": to the last non-blank character in the line or <count> lines
7459 	 * downward. */
7460 	cap->oap->motion_type = MCHAR;
7461 	cap->oap->inclusive = TRUE;
7462 	curwin->w_curswant = MAXCOL;
7463 	if (cursor_down((long)(cap->count1 - 1),
7464 					 cap->oap->op_type == OP_NOP) == FAIL)
7465 	    clearopbeep(cap->oap);
7466 	else
7467 	{
7468 	    char_u  *ptr = ml_get_curline();
7469 
7470 	    /* In Visual mode we may end up after the line. */
7471 	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
7472 		--curwin->w_cursor.col;
7473 
7474 	    /* Decrease the cursor column until it's on a non-blank. */
7475 	    while (curwin->w_cursor.col > 0
7476 				    && vim_iswhite(ptr[curwin->w_cursor.col]))
7477 		--curwin->w_cursor.col;
7478 	    curwin->w_set_curswant = TRUE;
7479 	}
7480 	break;
7481 
7482     case '$':
7483     case K_END:
7484     case K_KEND:
7485 	{
7486 	    int col_off = curwin_col_off();
7487 
7488 	    oap->motion_type = MCHAR;
7489 	    oap->inclusive = TRUE;
7490 	    if (curwin->w_p_wrap
7491 #ifdef FEAT_VERTSPLIT
7492 		    && curwin->w_width != 0
7493 #endif
7494 	       )
7495 	    {
7496 		curwin->w_curswant = MAXCOL;    /* so we stay at the end */
7497 		if (cap->count1 == 1)
7498 		{
7499 		    int		width1 = W_WIDTH(curwin) - col_off;
7500 		    int		width2 = width1 + curwin_col_off2();
7501 
7502 		    validate_virtcol();
7503 		    i = width1 - 1;
7504 		    if (curwin->w_virtcol >= (colnr_T)width1)
7505 			i += ((curwin->w_virtcol - width1) / width2 + 1)
7506 								     * width2;
7507 		    coladvance((colnr_T)i);
7508 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
7509 		    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
7510 		    {
7511 			/*
7512 			 * Check for landing on a character that got split at
7513 			 * the end of the line.  We do not want to advance to
7514 			 * the next screen line.
7515 			 */
7516 			validate_virtcol();
7517 			if (curwin->w_virtcol > (colnr_T)i)
7518 			    --curwin->w_cursor.col;
7519 		    }
7520 #endif
7521 		}
7522 		else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
7523 		    clearopbeep(oap);
7524 	    }
7525 	    else
7526 	    {
7527 		i = curwin->w_leftcol + W_WIDTH(curwin) - col_off - 1;
7528 		coladvance((colnr_T)i);
7529 
7530 		/* Make sure we stick in this column. */
7531 		validate_virtcol();
7532 		curwin->w_curswant = curwin->w_virtcol;
7533 		curwin->w_set_curswant = FALSE;
7534 	    }
7535 	}
7536 	break;
7537 
7538     /*
7539      * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
7540      */
7541     case '*':
7542     case '#':
7543 #if POUND != '#'
7544     case POUND:		/* pound sign (sometimes equal to '#') */
7545 #endif
7546     case Ctrl_RSB:		/* :tag or :tselect for current identifier */
7547     case ']':			/* :tselect for current identifier */
7548 	nv_ident(cap);
7549 	break;
7550 
7551     /*
7552      * ge and gE: go back to end of word
7553      */
7554     case 'e':
7555     case 'E':
7556 	oap->motion_type = MCHAR;
7557 	curwin->w_set_curswant = TRUE;
7558 	oap->inclusive = TRUE;
7559 	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
7560 	    clearopbeep(oap);
7561 	break;
7562 
7563     /*
7564      * "g CTRL-G": display info about cursor position
7565      */
7566     case Ctrl_G:
7567 	cursor_pos_info();
7568 	break;
7569 
7570     /*
7571      * "gi": start Insert at the last position.
7572      */
7573     case 'i':
7574 	if (curbuf->b_last_insert.lnum != 0)
7575 	{
7576 	    curwin->w_cursor = curbuf->b_last_insert;
7577 	    check_cursor_lnum();
7578 	    i = (int)STRLEN(ml_get_curline());
7579 	    if (curwin->w_cursor.col > (colnr_T)i)
7580 	    {
7581 #ifdef FEAT_VIRTUALEDIT
7582 		if (virtual_active())
7583 		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
7584 #endif
7585 		curwin->w_cursor.col = i;
7586 	    }
7587 	}
7588 	cap->cmdchar = 'i';
7589 	nv_edit(cap);
7590 	break;
7591 
7592     /*
7593      * "gI": Start insert in column 1.
7594      */
7595     case 'I':
7596 	beginline(0);
7597 	if (!checkclearopq(oap))
7598 	    invoke_edit(cap, FALSE, 'g', FALSE);
7599 	break;
7600 
7601 #ifdef FEAT_SEARCHPATH
7602     /*
7603      * "gf": goto file, edit file under cursor
7604      * "]f" and "[f": can also be used.
7605      */
7606     case 'f':
7607 	nv_gotofile(cap);
7608 	break;
7609 #endif
7610 
7611 	/* "g'm" and "g`m": jump to mark without setting pcmark */
7612     case '\'':
7613 	cap->arg = TRUE;
7614 	/*FALLTHROUGH*/
7615     case '`':
7616 	nv_gomark(cap);
7617 	break;
7618 
7619     /*
7620      * "gs": Goto sleep.
7621      */
7622     case 's':
7623 	do_sleep(cap->count1 * 1000L);
7624 	break;
7625 
7626     /*
7627      * "ga": Display the ascii value of the character under the
7628      * cursor.	It is displayed in decimal, hex, and octal. -- webb
7629      */
7630     case 'a':
7631 	do_ascii(NULL);
7632 	break;
7633 
7634 #ifdef FEAT_MBYTE
7635     /*
7636      * "g8": Display the bytes used for the UTF-8 character under the
7637      * cursor.	It is displayed in hex.
7638      */
7639     case '8':
7640 	show_utf8();
7641 	break;
7642 #endif
7643 
7644     case '<':
7645 	show_sb_text();
7646 	break;
7647 
7648     /*
7649      * "gg": Goto the first line in file.  With a count it goes to
7650      * that line number like for "G". -- webb
7651      */
7652     case 'g':
7653 	cap->arg = FALSE;
7654 	nv_goto(cap);
7655 	break;
7656 
7657     /*
7658      *	 Two-character operators:
7659      *	 "gq"	    Format text
7660      *	 "gw"	    Format text and keep cursor position
7661      *	 "g~"	    Toggle the case of the text.
7662      *	 "gu"	    Change text to lower case.
7663      *	 "gU"	    Change text to upper case.
7664      *   "g?"	    rot13 encoding
7665      */
7666     case 'q':
7667     case 'w':
7668 	oap->cursor_start = curwin->w_cursor;
7669 	/*FALLTHROUGH*/
7670     case '~':
7671     case 'u':
7672     case 'U':
7673     case '?':
7674 	nv_operator(cap);
7675 	break;
7676 
7677     /*
7678      * "gd": Find first occurence of pattern under the cursor in the
7679      *	 current function
7680      * "gD": idem, but in the current file.
7681      */
7682     case 'd':
7683     case 'D':
7684 	nv_gd(oap, cap->nchar, (int)cap->count0);
7685 	break;
7686 
7687 #ifdef FEAT_MOUSE
7688     /*
7689      * g<*Mouse> : <C-*mouse>
7690      */
7691     case K_MIDDLEMOUSE:
7692     case K_MIDDLEDRAG:
7693     case K_MIDDLERELEASE:
7694     case K_LEFTMOUSE:
7695     case K_LEFTDRAG:
7696     case K_LEFTRELEASE:
7697     case K_RIGHTMOUSE:
7698     case K_RIGHTDRAG:
7699     case K_RIGHTRELEASE:
7700     case K_X1MOUSE:
7701     case K_X1DRAG:
7702     case K_X1RELEASE:
7703     case K_X2MOUSE:
7704     case K_X2DRAG:
7705     case K_X2RELEASE:
7706 	mod_mask = MOD_MASK_CTRL;
7707 	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
7708 	break;
7709 #endif
7710 
7711     case K_IGNORE:
7712 	break;
7713 
7714     /*
7715      * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
7716      */
7717     case 'p':
7718     case 'P':
7719 	nv_put(cap);
7720 	break;
7721 
7722 #ifdef FEAT_BYTEOFF
7723     /* "go": goto byte count from start of buffer */
7724     case 'o':
7725 	goto_byte(cap->count0);
7726 	break;
7727 #endif
7728 
7729     /* "gQ": improved Ex mode */
7730     case 'Q':
7731 #ifdef FEAT_CMDWIN
7732 	if (cmdwin_type != 0)
7733 	{
7734 	    clearopbeep(cap->oap);
7735 	    break;
7736 	}
7737 #endif
7738 	if (!checkclearopq(oap))
7739 	    do_exmode(TRUE);
7740 	break;
7741 
7742 #ifdef FEAT_JUMPLIST
7743     case ',':
7744 	nv_pcmark(cap);
7745 	break;
7746 
7747     case ';':
7748 	cap->count1 = -cap->count1;
7749 	nv_pcmark(cap);
7750 	break;
7751 #endif
7752 
7753     default:
7754 	clearopbeep(oap);
7755 	break;
7756     }
7757 }
7758 
7759 /*
7760  * Handle "o" and "O" commands.
7761  */
7762     static void
7763 n_opencmd(cap)
7764     cmdarg_T	*cap;
7765 {
7766     if (!checkclearopq(cap->oap))
7767     {
7768 #ifdef FEAT_FOLDING
7769 	if (cap->cmdchar == 'O')
7770 	    /* Open above the first line of a folded sequence of lines */
7771 	    (void)hasFolding(curwin->w_cursor.lnum,
7772 						&curwin->w_cursor.lnum, NULL);
7773 	else
7774 	    /* Open below the last line of a folded sequence of lines */
7775 	    (void)hasFolding(curwin->w_cursor.lnum,
7776 						NULL, &curwin->w_cursor.lnum);
7777 #endif
7778 	if (u_save((linenr_T)(curwin->w_cursor.lnum -
7779 					       (cap->cmdchar == 'O' ? 1 : 0)),
7780 		   (linenr_T)(curwin->w_cursor.lnum +
7781 					       (cap->cmdchar == 'o' ? 1 : 0))
7782 		       ) == OK
7783 		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
7784 #ifdef FEAT_COMMENTS
7785 		    has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM :
7786 #endif
7787 		    0, 0))
7788 	{
7789 	    /* When '#' is in 'cpoptions' ignore the count. */
7790 	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
7791 		cap->count1 = 1;
7792 	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
7793 	}
7794     }
7795 }
7796 
7797 /*
7798  * "." command: redo last change.
7799  */
7800     static void
7801 nv_dot(cap)
7802     cmdarg_T	*cap;
7803 {
7804     if (!checkclearopq(cap->oap))
7805     {
7806 	/*
7807 	 * If "restart_edit" is TRUE, the last but one command is repeated
7808 	 * instead of the last command (inserting text). This is used for
7809 	 * CTRL-O <.> in insert mode.
7810 	 */
7811 	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
7812 	    clearopbeep(cap->oap);
7813     }
7814 }
7815 
7816 /*
7817  * CTRL-R: undo undo
7818  */
7819     static void
7820 nv_redo(cap)
7821     cmdarg_T	*cap;
7822 {
7823     if (!checkclearopq(cap->oap))
7824     {
7825 	u_redo((int)cap->count1);
7826 	curwin->w_set_curswant = TRUE;
7827     }
7828 }
7829 
7830 /*
7831  * Handle "U" command.
7832  */
7833     static void
7834 nv_Undo(cap)
7835     cmdarg_T	*cap;
7836 {
7837     /* In Visual mode and typing "gUU" triggers an operator */
7838     if (cap->oap->op_type == OP_UPPER
7839 #ifdef FEAT_VISUAL
7840 	    || VIsual_active
7841 #endif
7842 	    )
7843     {
7844 	/* translate "gUU" to "gUgU" */
7845 	cap->cmdchar = 'g';
7846 	cap->nchar = 'U';
7847 	nv_operator(cap);
7848     }
7849     else if (!checkclearopq(cap->oap))
7850     {
7851 	u_undoline();
7852 	curwin->w_set_curswant = TRUE;
7853     }
7854 }
7855 
7856 /*
7857  * '~' command: If tilde is not an operator and Visual is off: swap case of a
7858  * single character.
7859  */
7860     static void
7861 nv_tilde(cap)
7862     cmdarg_T	*cap;
7863 {
7864     if (!p_to
7865 #ifdef FEAT_VISUAL
7866 	    && !VIsual_active
7867 #endif
7868 	    && cap->oap->op_type != OP_TILDE)
7869 	n_swapchar(cap);
7870     else
7871 	nv_operator(cap);
7872 }
7873 
7874 /*
7875  * Handle an operator command.
7876  * The actual work is done by do_pending_operator().
7877  */
7878     static void
7879 nv_operator(cap)
7880     cmdarg_T	*cap;
7881 {
7882     int	    op_type;
7883 
7884     op_type = get_op_type(cap->cmdchar, cap->nchar);
7885 
7886     if (op_type == cap->oap->op_type)	    /* double operator works on lines */
7887 	nv_lineop(cap);
7888     else if (!checkclearop(cap->oap))
7889     {
7890 	cap->oap->start = curwin->w_cursor;
7891 	cap->oap->op_type = op_type;
7892     }
7893 }
7894 
7895 /*
7896  * Handle linewise operator "dd", "yy", etc.
7897  *
7898  * "_" is is a strange motion command that helps make operators more logical.
7899  * It is actually implemented, but not documented in the real Vi.  This motion
7900  * command actually refers to "the current line".  Commands like "dd" and "yy"
7901  * are really an alternate form of "d_" and "y_".  It does accept a count, so
7902  * "d3_" works to delete 3 lines.
7903  */
7904     static void
7905 nv_lineop(cap)
7906     cmdarg_T	*cap;
7907 {
7908     cap->oap->motion_type = MLINE;
7909     if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
7910 	clearopbeep(cap->oap);
7911     else if (  cap->oap->op_type == OP_DELETE
7912 	    || cap->oap->op_type == OP_LSHIFT
7913 	    || cap->oap->op_type == OP_RSHIFT)
7914 	beginline(BL_SOL | BL_FIX);
7915     else if (cap->oap->op_type != OP_YANK)	/* 'Y' does not move cursor */
7916 	beginline(BL_WHITE | BL_FIX);
7917 }
7918 
7919 /*
7920  * <Home> command.
7921  */
7922     static void
7923 nv_home(cap)
7924     cmdarg_T	*cap;
7925 {
7926     /* CTRL-HOME is like "gg" */
7927     if (mod_mask & MOD_MASK_CTRL)
7928 	nv_goto(cap);
7929     else
7930     {
7931 	cap->count0 = 1;
7932 	nv_pipe(cap);
7933     }
7934     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
7935 			       one-character line). */
7936 }
7937 
7938 /*
7939  * "|" command.
7940  */
7941     static void
7942 nv_pipe(cap)
7943     cmdarg_T *cap;
7944 {
7945     cap->oap->motion_type = MCHAR;
7946     cap->oap->inclusive = FALSE;
7947     beginline(0);
7948     if (cap->count0 > 0)
7949     {
7950 	coladvance((colnr_T)(cap->count0 - 1));
7951 	curwin->w_curswant = (colnr_T)(cap->count0 - 1);
7952     }
7953     else
7954 	curwin->w_curswant = 0;
7955     /* keep curswant at the column where we wanted to go, not where
7956        we ended; differs if line is too short */
7957     curwin->w_set_curswant = FALSE;
7958 }
7959 
7960 /*
7961  * Handle back-word command "b" and "B".
7962  * cap->arg is 1 for "B"
7963  */
7964     static void
7965 nv_bck_word(cap)
7966     cmdarg_T	*cap;
7967 {
7968     cap->oap->motion_type = MCHAR;
7969     cap->oap->inclusive = FALSE;
7970     curwin->w_set_curswant = TRUE;
7971     if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
7972 	clearopbeep(cap->oap);
7973 #ifdef FEAT_FOLDING
7974     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
7975 	foldOpenCursor();
7976 #endif
7977 }
7978 
7979 /*
7980  * Handle word motion commands "e", "E", "w" and "W".
7981  * cap->arg is TRUE for "E" and "W".
7982  */
7983     static void
7984 nv_wordcmd(cap)
7985     cmdarg_T	*cap;
7986 {
7987     int		n;
7988     int		word_end;
7989     int		flag = FALSE;
7990 
7991     /*
7992      * Set inclusive for the "E" and "e" command.
7993      */
7994     if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
7995 	word_end = TRUE;
7996     else
7997 	word_end = FALSE;
7998     cap->oap->inclusive = word_end;
7999 
8000     /*
8001      * "cw" and "cW" are a special case.
8002      */
8003     if (!word_end && cap->oap->op_type == OP_CHANGE)
8004     {
8005 	n = gchar_cursor();
8006 	if (n != NUL)			/* not an empty line */
8007 	{
8008 	    if (vim_iswhite(n))
8009 	    {
8010 		/*
8011 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
8012 		 * changes one character, not all blanks until the start of
8013 		 * the next word.  Only do this when the 'w' flag is included
8014 		 * in 'cpoptions'.
8015 		 */
8016 		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
8017 		{
8018 		    cap->oap->inclusive = TRUE;
8019 		    cap->oap->motion_type = MCHAR;
8020 		    return;
8021 		}
8022 	    }
8023 	    else
8024 	    {
8025 		/*
8026 		 * This is a little strange. To match what the real Vi does,
8027 		 * we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
8028 		 * that we are not on a space or a TAB.  This seems impolite
8029 		 * at first, but it's really more what we mean when we say
8030 		 * 'cw'.
8031 		 * Another strangeness: When standing on the end of a word
8032 		 * "ce" will change until the end of the next wordt, but "cw"
8033 		 * will change only one character! This is done by setting
8034 		 * flag.
8035 		 */
8036 		cap->oap->inclusive = TRUE;
8037 		word_end = TRUE;
8038 		flag = TRUE;
8039 	    }
8040 	}
8041     }
8042 
8043     cap->oap->motion_type = MCHAR;
8044     curwin->w_set_curswant = TRUE;
8045     if (word_end)
8046 	n = end_word(cap->count1, cap->arg, flag, FALSE);
8047     else
8048 	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
8049 
8050     /* Don't leave the cursor on the NUL past a line */
8051     if (curwin->w_cursor.col && gchar_cursor() == NUL)
8052     {
8053 	--curwin->w_cursor.col;
8054 	cap->oap->inclusive = TRUE;
8055     }
8056 
8057     if (n == FAIL && cap->oap->op_type == OP_NOP)
8058 	clearopbeep(cap->oap);
8059     else
8060     {
8061 #ifdef FEAT_VISUAL
8062 	adjust_for_sel(cap);
8063 #endif
8064 #ifdef FEAT_FOLDING
8065 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8066 	    foldOpenCursor();
8067 #endif
8068     }
8069 }
8070 
8071 /*
8072  * "0" and "^" commands.
8073  * cap->arg is the argument for beginline().
8074  */
8075     static void
8076 nv_beginline(cap)
8077     cmdarg_T	*cap;
8078 {
8079     cap->oap->motion_type = MCHAR;
8080     cap->oap->inclusive = FALSE;
8081     beginline(cap->arg);
8082 #ifdef FEAT_FOLDING
8083     if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8084 	foldOpenCursor();
8085 #endif
8086 }
8087 
8088 #ifdef FEAT_VISUAL
8089 /*
8090  * In exclusive Visual mode, may include the last character.
8091  */
8092     static void
8093 adjust_for_sel(cap)
8094     cmdarg_T	*cap;
8095 {
8096     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
8097 	    && gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor))
8098     {
8099 # ifdef FEAT_MBYTE
8100 	if (has_mbyte)
8101 	    inc_cursor();
8102 	else
8103 # endif
8104 	    ++curwin->w_cursor.col;
8105 	cap->oap->inclusive = FALSE;
8106     }
8107 }
8108 
8109 /*
8110  * Exclude last character at end of Visual area for 'selection' == "exclusive".
8111  * Should check VIsual_mode before calling this.
8112  * Returns TRUE when backed up to the previous line.
8113  */
8114     static int
8115 unadjust_for_sel()
8116 {
8117     pos_T	*pp;
8118 
8119     if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor))
8120     {
8121 	if (lt(VIsual, curwin->w_cursor))
8122 	    pp = &curwin->w_cursor;
8123 	else
8124 	    pp = &VIsual;
8125 #ifdef FEAT_VIRTUALEDIT
8126 	if (pp->coladd > 0)
8127 	    --pp->coladd;
8128 	else
8129 #endif
8130 	if (pp->col > 0)
8131 	{
8132 	    --pp->col;
8133 #ifdef FEAT_MBYTE
8134 	    mb_adjustpos(pp);
8135 #endif
8136 	}
8137 	else if (pp->lnum > 1)
8138 	{
8139 	    --pp->lnum;
8140 	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
8141 	    return TRUE;
8142 	}
8143     }
8144     return FALSE;
8145 }
8146 
8147 /*
8148  * SELECT key in Normal or Visual mode: end of Select mode mapping.
8149  */
8150     static void
8151 nv_select(cap)
8152     cmdarg_T	*cap;
8153 {
8154     if (VIsual_active)
8155 	VIsual_select = TRUE;
8156     else if (VIsual_reselect)
8157     {
8158 	cap->nchar = 'v';	    /* fake "gv" command */
8159 	cap->arg = TRUE;
8160 	nv_g_cmd(cap);
8161     }
8162 }
8163 
8164 #endif
8165 
8166 /*
8167  * "G", "gg", CTRL-END, CTRL-HOME.
8168  * cap->arg is TRUE for "G".
8169  */
8170     static void
8171 nv_goto(cap)
8172     cmdarg_T	*cap;
8173 {
8174     linenr_T	lnum;
8175 
8176     if (cap->arg)
8177 	lnum = curbuf->b_ml.ml_line_count;
8178     else
8179 	lnum = 1L;
8180     cap->oap->motion_type = MLINE;
8181     setpcmark();
8182 
8183     /* When a count is given, use it instead of the default lnum */
8184     if (cap->count0 != 0)
8185 	lnum = cap->count0;
8186     if (lnum < 1L)
8187 	lnum = 1L;
8188     else if (lnum > curbuf->b_ml.ml_line_count)
8189 	lnum = curbuf->b_ml.ml_line_count;
8190     curwin->w_cursor.lnum = lnum;
8191     beginline(BL_SOL | BL_FIX);
8192 #ifdef FEAT_FOLDING
8193     if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP)
8194 	foldOpenCursor();
8195 #endif
8196 }
8197 
8198 /*
8199  * CTRL-\ in Normal mode.
8200  */
8201     static void
8202 nv_normal(cap)
8203     cmdarg_T	*cap;
8204 {
8205     if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G)
8206     {
8207 	clearop(cap->oap);
8208 	if (restart_edit != 0 && p_smd)
8209 	    clear_cmdline = TRUE;		/* unshow mode later */
8210 	restart_edit = 0;
8211 #ifdef FEAT_CMDWIN
8212 	if (cmdwin_type != 0)
8213 	    cmdwin_result = Ctrl_C;
8214 #endif
8215 #ifdef FEAT_VISUAL
8216 	if (VIsual_active)
8217 	{
8218 	    end_visual_mode();		/* stop Visual */
8219 	    redraw_curbuf_later(INVERTED);
8220 	}
8221 #endif
8222 	/* CTRL-\ CTRL-G restarts Insert mode when 'insertmode' is set. */
8223 	if (cap->nchar == Ctrl_G && p_im)
8224 	    restart_edit = 'a';
8225     }
8226     else
8227 	clearopbeep(cap->oap);
8228 }
8229 
8230 /*
8231  * ESC in Normal mode: beep, but don't flush buffers.
8232  * Don't even beep if we are canceling a command.
8233  */
8234     static void
8235 nv_esc(cap)
8236     cmdarg_T	*cap;
8237 {
8238     int		no_reason;
8239 
8240     no_reason = (cap->oap->op_type == OP_NOP
8241 		&& cap->opcount == 0
8242 		&& cap->count0 == 0
8243 		&& cap->oap->regname == 0
8244 		&& !p_im);
8245 
8246     if (cap->arg)		/* TRUE for CTRL-C */
8247     {
8248 	if (restart_edit == 0
8249 #ifdef FEAT_CMDWIN
8250 		&& cmdwin_type == 0
8251 #endif
8252 #ifdef FEAT_VISUAL
8253 		&& !VIsual_active
8254 #endif
8255 		&& no_reason)
8256 	    MSG(_("Type  :quit<Enter>  to exit Vim"));
8257 
8258 	/* Don't reset "restart_edit" when 'insertmode' is set, it won't be
8259 	 * set again below when halfway a mapping. */
8260 	if (!p_im)
8261 	    restart_edit = 0;
8262 #ifdef FEAT_CMDWIN
8263 	if (cmdwin_type != 0)
8264 	{
8265 	    cmdwin_result = K_IGNORE;
8266 	    got_int = FALSE;	/* don't stop executing autocommands et al. */
8267 	    return;
8268 	}
8269 #endif
8270     }
8271 
8272 #ifdef FEAT_VISUAL
8273     if (VIsual_active)
8274     {
8275 	end_visual_mode();	/* stop Visual */
8276 	check_cursor_col();	/* make sure cursor is not beyond EOL */
8277 	curwin->w_set_curswant = TRUE;
8278 	redraw_curbuf_later(INVERTED);
8279     }
8280     else
8281 #endif
8282 	if (no_reason)
8283 	    vim_beep();
8284     clearop(cap->oap);
8285 
8286     /* A CTRL-C is often used at the start of a menu.  When 'insertmode' is
8287      * set return to Insert mode afterwards. */
8288     if (restart_edit == 0 && goto_im()
8289 #ifdef FEAT_EX_EXTRA
8290 	    && ex_normal_busy == 0
8291 #endif
8292 	    )
8293 	restart_edit = 'a';
8294 }
8295 
8296 /*
8297  * Handle "A", "a", "I", "i" and <Insert> commands.
8298  */
8299     static void
8300 nv_edit(cap)
8301     cmdarg_T *cap;
8302 {
8303     /* <Insert> is equal to "i" */
8304     if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
8305 	cap->cmdchar = 'i';
8306 
8307 #ifdef FEAT_VISUAL
8308     /* in Visual mode "A" and "I" are an operator */
8309     if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
8310 	v_visop(cap);
8311 
8312     /* in Visual mode and after an operator "a" and "i" are for text objects */
8313     else
8314 #endif
8315 	if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
8316 	    && (cap->oap->op_type != OP_NOP
8317 #ifdef FEAT_VISUAL
8318 		|| VIsual_active
8319 #endif
8320 		))
8321     {
8322 #ifdef FEAT_TEXTOBJ
8323 	nv_object(cap);
8324 #else
8325 	clearopbeep(cap->oap);
8326 #endif
8327     }
8328     else if (!curbuf->b_p_ma && !p_im)
8329     {
8330 	/* Only give this error when 'insertmode' is off. */
8331 	EMSG(_(e_modifiable));
8332 	clearop(cap->oap);
8333     }
8334     else if (!checkclearopq(cap->oap))
8335     {
8336 	switch (cap->cmdchar)
8337 	{
8338 	    case 'A':	/* "A"ppend after the line */
8339 		curwin->w_set_curswant = TRUE;
8340 #ifdef FEAT_VIRTUALEDIT
8341 		if (ve_flags == VE_ALL)
8342 		{
8343 		    int save_State = State;
8344 
8345 		    /* Pretent Insert mode here to allow the cursor on the
8346 		     * character past the end of the line */
8347 		    State = INSERT;
8348 		    coladvance((colnr_T)MAXCOL);
8349 		    State = save_State;
8350 		}
8351 		else
8352 #endif
8353 		    curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
8354 		break;
8355 
8356 	    case 'I':	/* "I"nsert before the first non-blank */
8357 		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
8358 		    beginline(BL_WHITE);
8359 		else
8360 		    beginline(BL_WHITE|BL_FIX);
8361 		break;
8362 
8363 	    case 'a':	/* "a"ppend is like "i"nsert on the next character. */
8364 #ifdef FEAT_VIRTUALEDIT
8365 		/* increment coladd when in virtual space, increment the
8366 		 * column otherwise, also to append after an unprintable char */
8367 		if (virtual_active()
8368 			&& (curwin->w_cursor.coladd > 0
8369 			    || *ml_get_cursor() == NUL
8370 			    || *ml_get_cursor() == TAB))
8371 		    curwin->w_cursor.coladd++;
8372 		else
8373 #endif
8374 		if (*ml_get_cursor() != NUL)
8375 		    inc_cursor();
8376 		break;
8377 	}
8378 
8379 #ifdef FEAT_VIRTUALEDIT
8380 	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
8381 	{
8382 	    int save_State = State;
8383 
8384 	    /* Pretent Insert mode here to allow the cursor on the
8385 	     * character past the end of the line */
8386 	    State = INSERT;
8387 	    coladvance(getviscol());
8388 	    State = save_State;
8389 	}
8390 #endif
8391 
8392 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
8393     }
8394 }
8395 
8396 /*
8397  * Invoke edit() and take care of "restart_edit" and the return value.
8398  */
8399     static void
8400 invoke_edit(cap, repl, cmd, startln)
8401     cmdarg_T	*cap;
8402     int		repl;		/* "r" or "gr" command */
8403     int		cmd;
8404     int		startln;
8405 {
8406     int		restart_edit_save = 0;
8407 
8408     /* Complicated: When the user types "a<C-O>a" we don't want to do Insert
8409      * mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
8410      * it. */
8411     if (repl || !stuff_empty())
8412 	restart_edit_save = restart_edit;
8413     else
8414 	restart_edit_save = 0;
8415 
8416     /* Always reset "restart_edit", this is not a restarted edit. */
8417     restart_edit = 0;
8418 
8419     if (edit(cmd, startln, cap->count1))
8420 	cap->retval |= CA_COMMAND_BUSY;
8421 
8422     if (restart_edit == 0)
8423 	restart_edit = restart_edit_save;
8424 }
8425 
8426 #ifdef FEAT_TEXTOBJ
8427 /*
8428  * "a" or "i" while an operator is pending or in Visual mode: object motion.
8429  */
8430     static void
8431 nv_object(cap)
8432     cmdarg_T	*cap;
8433 {
8434     int		flag;
8435     int		include;
8436     char_u	*mps_save;
8437 
8438     if (cap->cmdchar == 'i')
8439 	include = FALSE;    /* "ix" = inner object: exclude white space */
8440     else
8441 	include = TRUE;	    /* "ax" = an object: include white space */
8442 
8443     /* Make sure (), [], {} and <> are in 'matchpairs' */
8444     mps_save = curbuf->b_p_mps;
8445     curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";
8446 
8447     switch (cap->nchar)
8448     {
8449 	case 'w': /* "aw" = a word */
8450 		flag = current_word(cap->oap, cap->count1, include, FALSE);
8451 		break;
8452 	case 'W': /* "aW" = a WORD */
8453 		flag = current_word(cap->oap, cap->count1, include, TRUE);
8454 		break;
8455 	case 'b': /* "ab" = a braces block */
8456 	case '(':
8457 	case ')':
8458 		flag = current_block(cap->oap, cap->count1, include, '(', ')');
8459 		break;
8460 	case 'B': /* "aB" = a Brackets block */
8461 	case '{':
8462 	case '}':
8463 		flag = current_block(cap->oap, cap->count1, include, '{', '}');
8464 		break;
8465 	case '[': /* "a[" = a [] block */
8466 	case ']':
8467 		flag = current_block(cap->oap, cap->count1, include, '[', ']');
8468 		break;
8469 	case '<': /* "a<" = a <> block */
8470 	case '>':
8471 		flag = current_block(cap->oap, cap->count1, include, '<', '>');
8472 		break;
8473 	case 't': /* "at" = a tag block (xml and html) */
8474 		flag = current_tagblock(cap->oap, cap->count1, include);
8475 		break;
8476 	case 'p': /* "ap" = a paragraph */
8477 		flag = current_par(cap->oap, cap->count1, include, 'p');
8478 		break;
8479 	case 's': /* "as" = a sentence */
8480 		flag = current_sent(cap->oap, cap->count1, include);
8481 		break;
8482 	case '"': /* "a"" = a double quoted string */
8483 	case '\'': /* "a'" = a single quoted string */
8484 	case '`': /* "a`" = a backtick quoted string */
8485 		flag = current_quote(cap->oap, cap->count1, include,
8486 								  cap->nchar);
8487 		break;
8488 #if 0	/* TODO */
8489 	case 'S': /* "aS" = a section */
8490 	case 'f': /* "af" = a filename */
8491 	case 'u': /* "au" = a URL */
8492 #endif
8493 	default:
8494 		flag = FAIL;
8495 		break;
8496     }
8497 
8498     curbuf->b_p_mps = mps_save;
8499     if (flag == FAIL)
8500 	clearopbeep(cap->oap);
8501     adjust_cursor_col();
8502     curwin->w_set_curswant = TRUE;
8503 }
8504 #endif
8505 
8506 /*
8507  * "q" command: Start/stop recording.
8508  * "q:", "q/", "q?": edit command-line in command-line window.
8509  */
8510     static void
8511 nv_record(cap)
8512     cmdarg_T	*cap;
8513 {
8514     if (cap->oap->op_type == OP_FORMAT)
8515     {
8516 	/* "gqq" is the same as "gqgq": format line */
8517 	cap->cmdchar = 'g';
8518 	cap->nchar = 'q';
8519 	nv_operator(cap);
8520     }
8521     else if (!checkclearop(cap->oap))
8522     {
8523 #ifdef FEAT_CMDWIN
8524 	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
8525 	{
8526 	    stuffcharReadbuff(cap->nchar);
8527 	    stuffcharReadbuff(K_CMDWIN);
8528 	}
8529 	else
8530 #endif
8531 	    /* (stop) recording into a named register, unless executing a
8532 	     * register */
8533 	    if (!Exec_reg && do_record(cap->nchar) == FAIL)
8534 		clearopbeep(cap->oap);
8535     }
8536 }
8537 
8538 /*
8539  * Handle the "@r" command.
8540  */
8541     static void
8542 nv_at(cap)
8543     cmdarg_T	*cap;
8544 {
8545     if (checkclearop(cap->oap))
8546 	return;
8547 #ifdef FEAT_EVAL
8548     if (cap->nchar == '=')
8549     {
8550 	if (get_expr_register() == NUL)
8551 	    return;
8552     }
8553 #endif
8554     while (cap->count1-- && !got_int)
8555     {
8556 	if (do_execreg(cap->nchar, FALSE, FALSE) == FAIL)
8557 	{
8558 	    clearopbeep(cap->oap);
8559 	    break;
8560 	}
8561 	line_breakcheck();
8562     }
8563 }
8564 
8565 /*
8566  * Handle the CTRL-U and CTRL-D commands.
8567  */
8568     static void
8569 nv_halfpage(cap)
8570     cmdarg_T	*cap;
8571 {
8572     if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
8573 	    || (cap->cmdchar == Ctrl_D
8574 		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
8575 	clearopbeep(cap->oap);
8576     else if (!checkclearop(cap->oap))
8577 	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
8578 }
8579 
8580 /*
8581  * Handle "J" or "gJ" command.
8582  */
8583     static void
8584 nv_join(cap)
8585     cmdarg_T *cap;
8586 {
8587 #ifdef FEAT_VISUAL
8588     if (VIsual_active)	/* join the visual lines */
8589 	nv_operator(cap);
8590     else
8591 #endif
8592 	if (!checkclearop(cap->oap))
8593     {
8594 	if (cap->count0 <= 1)
8595 	    cap->count0 = 2;	    /* default for join is two lines! */
8596 	if (curwin->w_cursor.lnum + cap->count0 - 1 >
8597 						   curbuf->b_ml.ml_line_count)
8598 	    clearopbeep(cap->oap);  /* beyond last line */
8599 	else
8600 	{
8601 	    prep_redo(cap->oap->regname, cap->count0,
8602 			 NUL, cap->cmdchar, NUL, NUL, cap->nchar);
8603 	    do_do_join(cap->count0, cap->nchar == NUL);
8604 	}
8605     }
8606 }
8607 
8608 /*
8609  * "P", "gP", "p" and "gp" commands.
8610  */
8611     static void
8612 nv_put(cap)
8613     cmdarg_T  *cap;
8614 {
8615 #ifdef FEAT_VISUAL
8616     int		regname = 0;
8617     void	*reg1 = NULL, *reg2 = NULL;
8618     int		empty = FALSE;
8619     int		was_visual = FALSE;
8620 #endif
8621     int		dir;
8622     int		flags = 0;
8623 
8624     if (cap->oap->op_type != OP_NOP)
8625     {
8626 #ifdef FEAT_DIFF
8627 	/* "dp" is ":diffput" */
8628 	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
8629 	{
8630 	    clearop(cap->oap);
8631 	    nv_diffgetput(TRUE);
8632 	}
8633 	else
8634 #endif
8635 	clearopbeep(cap->oap);
8636     }
8637     else
8638     {
8639 	dir = (cap->cmdchar == 'P'
8640 		|| (cap->cmdchar == 'g' && cap->nchar == 'P'))
8641 							 ? BACKWARD : FORWARD;
8642 	prep_redo_cmd(cap);
8643 	if (cap->cmdchar == 'g')
8644 	    flags |= PUT_CURSEND;
8645 
8646 #ifdef FEAT_VISUAL
8647 	if (VIsual_active)
8648 	{
8649 	    /* Putting in Visual mode: The put text replaces the selected
8650 	     * text.  First delete the selected text, then put the new text.
8651 	     * Need to save and restore the registers that the delete
8652 	     * overwrites if the old contents is being put.
8653 	     */
8654 	    was_visual = TRUE;
8655 	    regname = cap->oap->regname;
8656 # ifdef FEAT_CLIPBOARD
8657 	    adjust_clip_reg(&regname);
8658 # endif
8659 	    if (regname == 0 || VIM_ISDIGIT(regname)
8660 # ifdef FEAT_CLIPBOARD
8661 		    || (clip_unnamed && (regname == '*' || regname == '+'))
8662 # endif
8663 
8664 		    )
8665 	    {
8666 		/* the delete is going to overwrite the register we want to
8667 		 * put, save it first. */
8668 		reg1 = get_register(regname, TRUE);
8669 	    }
8670 
8671 	    /* Now delete the selected text. */
8672 	    cap->cmdchar = 'd';
8673 	    cap->nchar = NUL;
8674 	    cap->oap->regname = NUL;
8675 	    nv_operator(cap);
8676 	    do_pending_operator(cap, 0, FALSE);
8677 	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
8678 
8679 	    /* delete PUT_LINE_BACKWARD; */
8680 	    cap->oap->regname = regname;
8681 
8682 	    if (reg1 != NULL)
8683 	    {
8684 		/* Delete probably changed the register we want to put, save
8685 		 * it first. Then put back what was there before the delete. */
8686 		reg2 = get_register(regname, FALSE);
8687 		put_register(regname, reg1);
8688 	    }
8689 
8690 	    /* When deleted a linewise Visual area, put the register as
8691 	     * lines to avoid it joined with the next line.  When deletion was
8692 	     * characterwise, split a line when putting lines. */
8693 	    if (VIsual_mode == 'V')
8694 		flags |= PUT_LINE;
8695 	    else if (VIsual_mode == 'v')
8696 		flags |= PUT_LINE_SPLIT;
8697 	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
8698 		flags |= PUT_LINE_FORWARD;
8699 	    dir = BACKWARD;
8700 	    if ((VIsual_mode != 'V'
8701 			&& curwin->w_cursor.col < curbuf->b_op_start.col)
8702 		    || (VIsual_mode == 'V'
8703 			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
8704 		/* cursor is at the end of the line or end of file, put
8705 		 * forward. */
8706 		dir = FORWARD;
8707 	}
8708 #endif
8709 	do_put(cap->oap->regname, dir, cap->count1, flags);
8710 
8711 #ifdef FEAT_VISUAL
8712 	/* If a register was saved, put it back now. */
8713 	if (reg2 != NULL)
8714 	    put_register(regname, reg2);
8715 
8716 	/* What to reselect with "gv"?  Selecting the just put text seems to
8717 	 * be the most useful, since the original text was removed. */
8718 	if (was_visual)
8719 	{
8720 	    curbuf->b_visual_start = curbuf->b_op_start;
8721 	    curbuf->b_visual_end = curbuf->b_op_end;
8722 	}
8723 
8724 	/* When all lines were selected and deleted do_put() leaves an empty
8725 	 * line that needs to be deleted now. */
8726 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
8727 	    ml_delete(curbuf->b_ml.ml_line_count, TRUE);
8728 #endif
8729 	auto_format(FALSE, TRUE);
8730     }
8731 }
8732 
8733 /*
8734  * "o" and "O" commands.
8735  */
8736     static void
8737 nv_open(cap)
8738     cmdarg_T	*cap;
8739 {
8740 #ifdef FEAT_DIFF
8741     /* "do" is ":diffget" */
8742     if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
8743     {
8744 	clearop(cap->oap);
8745 	nv_diffgetput(FALSE);
8746     }
8747     else
8748 #endif
8749 #ifdef FEAT_VISUAL
8750     if (VIsual_active)  /* switch start and end of visual */
8751 	v_swap_corners(cap->cmdchar);
8752     else
8753 #endif
8754 	n_opencmd(cap);
8755 }
8756 
8757 #ifdef FEAT_SNIFF
8758 /*ARGSUSED*/
8759     static void
8760 nv_sniff(cap)
8761     cmdarg_T	*cap;
8762 {
8763     ProcessSniffRequests();
8764 }
8765 #endif
8766 
8767 #ifdef FEAT_NETBEANS_INTG
8768     static void
8769 nv_nbcmd(cap)
8770     cmdarg_T	*cap;
8771 {
8772     netbeans_keycommand(cap->nchar);
8773 }
8774 #endif
8775 
8776 #ifdef FEAT_DND
8777 /*ARGSUSED*/
8778     static void
8779 nv_drop(cap)
8780     cmdarg_T	*cap;
8781 {
8782     do_put('~', BACKWARD, 1L, PUT_CURSEND);
8783 }
8784 #endif
8785 
8786 #ifdef FEAT_AUTOCMD
8787 /*
8788  * Trigger CursorHold event.
8789  * When waiting for a character for 'updatetime' K_CURSORHOLD is put in the
8790  * input buffer.  "did_cursorhold" is set to avoid retriggering.
8791  */
8792 /*ARGSUSED*/
8793     static void
8794 nv_cursorhold(cap)
8795     cmdarg_T	*cap;
8796 {
8797     apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
8798     did_cursorhold = TRUE;
8799     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
8800 }
8801 #endif
8802 
8803