xref: /vim-8.2.3635/src/normal.c (revision 482aaeb0)
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 
4754 			/* Find bad word under the cursor. */
4755 			len = spell_move_to(curwin, FORWARD, TRUE, TRUE, NULL);
4756 			if (len != 0 && curwin->w_cursor.col <= pos.col)
4757 			    ptr = ml_get_pos(&curwin->w_cursor);
4758 			curwin->w_cursor = pos;
4759 		    }
4760 
4761 		    if (ptr == NULL && (len = find_ident_under_cursor(&ptr,
4762 							    FIND_IDENT)) == 0)
4763 			return;
4764 		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W',
4765 					    (nchar == 'G' || nchar == 'W') ? 0
4766 							  : (int)cap->count1);
4767 		}
4768 		break;
4769 
4770     case '?':	/* "z?": suggestions for a badly spelled word  */
4771 		if (!checkclearopq(cap->oap))
4772 		    spell_suggest((int)cap->count0);
4773 		break;
4774 #endif
4775 
4776     default:	clearopbeep(cap->oap);
4777     }
4778 
4779 #ifdef FEAT_FOLDING
4780     /* Redraw when 'foldenable' changed */
4781     if (old_fen != curwin->w_p_fen)
4782     {
4783 # ifdef FEAT_DIFF
4784 	win_T	    *wp;
4785 
4786 	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
4787 	{
4788 	    /* Adjust 'foldenable' in diff-synced windows. */
4789 	    FOR_ALL_WINDOWS(wp)
4790 	    {
4791 		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
4792 		{
4793 		    wp->w_p_fen = curwin->w_p_fen;
4794 		    changed_window_setting_win(wp);
4795 		}
4796 	    }
4797 	}
4798 # endif
4799 	changed_window_setting();
4800     }
4801 
4802     /* Redraw when 'foldlevel' changed. */
4803     if (old_fdl != curwin->w_p_fdl)
4804 	newFoldLevel();
4805 #endif
4806 }
4807 
4808 #ifdef FEAT_GUI
4809 /*
4810  * Vertical scrollbar movement.
4811  */
4812     static void
4813 nv_ver_scrollbar(cap)
4814     cmdarg_T	*cap;
4815 {
4816     if (cap->oap->op_type != OP_NOP)
4817 	clearopbeep(cap->oap);
4818 
4819     /* Even if an operator was pending, we still want to scroll */
4820     gui_do_scroll();
4821 }
4822 
4823 /*
4824  * Horizontal scrollbar movement.
4825  */
4826     static void
4827 nv_hor_scrollbar(cap)
4828     cmdarg_T	*cap;
4829 {
4830     if (cap->oap->op_type != OP_NOP)
4831 	clearopbeep(cap->oap);
4832 
4833     /* Even if an operator was pending, we still want to scroll */
4834     gui_do_horiz_scroll();
4835 }
4836 #endif
4837 
4838 /*
4839  * "Q" command.
4840  */
4841     static void
4842 nv_exmode(cap)
4843     cmdarg_T	*cap;
4844 {
4845     /*
4846      * Ignore 'Q' in Visual mode, just give a beep.
4847      */
4848 #ifdef FEAT_VISUAL
4849     if (VIsual_active)
4850 	vim_beep();
4851     else
4852 #endif
4853 	if (!checkclearop(cap->oap))
4854 	do_exmode(FALSE);
4855 }
4856 
4857 /*
4858  * Handle a ":" command.
4859  */
4860     static void
4861 nv_colon(cap)
4862     cmdarg_T  *cap;
4863 {
4864     int	    old_p_im;
4865 
4866 #ifdef FEAT_VISUAL
4867     if (VIsual_active)
4868 	nv_operator(cap);
4869     else
4870 #endif
4871     {
4872 	if (cap->oap->op_type != OP_NOP)
4873 	{
4874 	    /* Using ":" as a movement is characterwise exclusive. */
4875 	    cap->oap->motion_type = MCHAR;
4876 	    cap->oap->inclusive = FALSE;
4877 	}
4878 	else if (cap->count0)
4879 	{
4880 	    /* translate "count:" into ":.,.+(count - 1)" */
4881 	    stuffcharReadbuff('.');
4882 	    if (cap->count0 > 1)
4883 	    {
4884 		stuffReadbuff((char_u *)",.+");
4885 		stuffnumReadbuff((long)cap->count0 - 1L);
4886 	    }
4887 	}
4888 
4889 	/* When typing, don't type below an old message */
4890 	if (KeyTyped)
4891 	    compute_cmdrow();
4892 
4893 	old_p_im = p_im;
4894 
4895 	/* get a command line and execute it */
4896 	do_cmdline(NULL, getexline, NULL,
4897 			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
4898 
4899 	/* If 'insertmode' changed, enter or exit Insert mode */
4900 	if (p_im != old_p_im)
4901 	{
4902 	    if (p_im)
4903 		restart_edit = 'i';
4904 	    else
4905 		restart_edit = 0;
4906 	}
4907 
4908 	/* The start of the operator may have become invalid by the Ex
4909 	 * command. */
4910 	if (cap->oap->op_type != OP_NOP
4911 		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
4912 		    || cap->oap->start.col >
4913 					 STRLEN(ml_get(cap->oap->start.lnum))))
4914 	    clearopbeep(cap->oap);
4915     }
4916 }
4917 
4918 /*
4919  * Handle CTRL-G command.
4920  */
4921     static void
4922 nv_ctrlg(cap)
4923     cmdarg_T *cap;
4924 {
4925 #ifdef FEAT_VISUAL
4926     if (VIsual_active)	/* toggle Selection/Visual mode */
4927     {
4928 	VIsual_select = !VIsual_select;
4929 	showmode();
4930     }
4931     else
4932 #endif
4933 	if (!checkclearop(cap->oap))
4934 	/* print full name if count given or :cd used */
4935 	fileinfo((int)cap->count0, FALSE, TRUE);
4936 }
4937 
4938 /*
4939  * Handle CTRL-H <Backspace> command.
4940  */
4941     static void
4942 nv_ctrlh(cap)
4943     cmdarg_T *cap;
4944 {
4945 #ifdef FEAT_VISUAL
4946     if (VIsual_active && VIsual_select)
4947     {
4948 	cap->cmdchar = 'x';	/* BS key behaves like 'x' in Select mode */
4949 	v_visop(cap);
4950     }
4951     else
4952 #endif
4953 	nv_left(cap);
4954 }
4955 
4956 /*
4957  * CTRL-L: clear screen and redraw.
4958  */
4959     static void
4960 nv_clear(cap)
4961     cmdarg_T	*cap;
4962 {
4963     if (!checkclearop(cap->oap))
4964     {
4965 #if defined(__BEOS__) && !USE_THREAD_FOR_INPUT_WITH_TIMEOUT
4966 	/*
4967 	 * Right now, the BeBox doesn't seem to have an easy way to detect
4968 	 * window resizing, so we cheat and make the user detect it
4969 	 * manually with CTRL-L instead
4970 	 */
4971 	ui_get_shellsize();
4972 #endif
4973 #ifdef FEAT_SYN_HL
4974 	/* Clear all syntax states to force resyncing. */
4975 	syn_stack_free_all(curbuf);
4976 #endif
4977 	redraw_later(CLEAR);
4978     }
4979 }
4980 
4981 /*
4982  * CTRL-O: In Select mode: switch to Visual mode for one command.
4983  * Otherwise: Go to older pcmark.
4984  */
4985     static void
4986 nv_ctrlo(cap)
4987     cmdarg_T	*cap;
4988 {
4989 #ifdef FEAT_VISUAL
4990     if (VIsual_active && VIsual_select)
4991     {
4992 	VIsual_select = FALSE;
4993 	showmode();
4994 	restart_VIsual_select = 2;	/* restart Select mode later */
4995     }
4996     else
4997 #endif
4998     {
4999 	cap->count1 = -cap->count1;
5000 	nv_pcmark(cap);
5001     }
5002 }
5003 
5004 /*
5005  * CTRL-^ command, short for ":e #"
5006  */
5007     static void
5008 nv_hat(cap)
5009     cmdarg_T	*cap;
5010 {
5011     if (!checkclearopq(cap->oap))
5012 	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
5013 						GETF_SETMARK|GETF_ALT, FALSE);
5014 }
5015 
5016 /*
5017  * "Z" commands.
5018  */
5019     static void
5020 nv_Zet(cap)
5021     cmdarg_T *cap;
5022 {
5023     if (!checkclearopq(cap->oap))
5024     {
5025 	switch (cap->nchar)
5026 	{
5027 			/* "ZZ": equivalent to ":x". */
5028 	    case 'Z':	do_cmdline_cmd((char_u *)"x");
5029 			break;
5030 
5031 			/* "ZQ": equivalent to ":q!" (Elvis compatible). */
5032 	    case 'Q':	do_cmdline_cmd((char_u *)"q!");
5033 			break;
5034 
5035 	    default:	clearopbeep(cap->oap);
5036 	}
5037     }
5038 }
5039 
5040 #if defined(FEAT_WINDOWS) || defined(PROTO)
5041 /*
5042  * Call nv_ident() as if "c1" was used, with "c2" as next character.
5043  */
5044     void
5045 do_nv_ident(c1, c2)
5046     int		c1;
5047     int		c2;
5048 {
5049     oparg_T	oa;
5050     cmdarg_T	ca;
5051 
5052     clear_oparg(&oa);
5053     vim_memset(&ca, 0, sizeof(ca));
5054     ca.oap = &oa;
5055     ca.cmdchar = c1;
5056     ca.nchar = c2;
5057     nv_ident(&ca);
5058 }
5059 #endif
5060 
5061 /*
5062  * Handle the commands that use the word under the cursor.
5063  * [g] CTRL-]	:ta to current identifier
5064  * [g] 'K'	run program for current identifier
5065  * [g] '*'	/ to current identifier or string
5066  * [g] '#'	? to current identifier or string
5067  *  g  ']'	:tselect for current identifier
5068  */
5069     static void
5070 nv_ident(cap)
5071     cmdarg_T	*cap;
5072 {
5073     char_u	*ptr = NULL;
5074     char_u	*buf;
5075     char_u	*p;
5076     char_u	*kp;		/* value of 'keywordprg' */
5077     int		kp_help;	/* 'keywordprg' is ":help" */
5078     int		n = 0;		/* init for GCC */
5079     int		cmdchar;
5080     int		g_cmd;		/* "g" command */
5081     char_u	*aux_ptr;
5082     int		isman;
5083     int		isman_s;
5084 
5085     if (cap->cmdchar == 'g')	/* "g*", "g#", "g]" and "gCTRL-]" */
5086     {
5087 	cmdchar = cap->nchar;
5088 	g_cmd = TRUE;
5089     }
5090     else
5091     {
5092 	cmdchar = cap->cmdchar;
5093 	g_cmd = FALSE;
5094     }
5095 
5096     if (cmdchar == POUND)	/* the pound sign, '#' for English keyboards */
5097 	cmdchar = '#';
5098 
5099     /*
5100      * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
5101      */
5102     if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
5103     {
5104 #ifdef FEAT_VISUAL
5105 	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
5106 	    return;
5107 #endif
5108 	if (checkclearopq(cap->oap))
5109 	    return;
5110     }
5111 
5112     if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
5113 		    (cmdchar == '*' || cmdchar == '#')
5114 				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
5115     {
5116 	clearop(cap->oap);
5117 	return;
5118     }
5119 
5120     /* Allocate buffer to put the command in.  Inserting backslashes can
5121      * double the length of the word.  p_kp / curbuf->b_p_kp could be added
5122      * and some numbers. */
5123     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
5124     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
5125 						 || STRCMP(kp, ":help") == 0);
5126     buf = alloc((unsigned)(n * 2 + 30 + STRLEN(kp)));
5127     if (buf == NULL)
5128 	return;
5129     buf[0] = NUL;
5130 
5131     switch (cmdchar)
5132     {
5133 	case '*':
5134 	case '#':
5135 	    /*
5136 	     * Put cursor at start of word, makes search skip the word
5137 	     * under the cursor.
5138 	     * Call setpcmark() first, so "*``" puts the cursor back where
5139 	     * it was.
5140 	     */
5141 	    setpcmark();
5142 	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());
5143 
5144 	    if (!g_cmd && vim_iswordp(ptr))
5145 		STRCPY(buf, "\\<");
5146 	    no_smartcase = TRUE;	/* don't use 'smartcase' now */
5147 	    break;
5148 
5149 	case 'K':
5150 	    if (kp_help)
5151 		STRCPY(buf, "he! ");
5152 	    else
5153 	    {
5154 		/* When a count is given, turn it into a range.  Is this
5155 		 * really what we want? */
5156 		isman = (STRCMP(kp, "man") == 0);
5157 		isman_s = (STRCMP(kp, "man -s") == 0);
5158 		if (cap->count0 != 0 && !(isman || isman_s))
5159 		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);
5160 
5161 		STRCAT(buf, "! ");
5162 		if (cap->count0 == 0 && isman_s)
5163 		    STRCAT(buf, "man");
5164 		else
5165 		    STRCAT(buf, kp);
5166 		STRCAT(buf, " ");
5167 		if (cap->count0 != 0 && (isman || isman_s))
5168 		{
5169 		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
5170 		    STRCAT(buf, " ");
5171 		}
5172 	    }
5173 	    break;
5174 
5175 	case ']':
5176 #ifdef FEAT_CSCOPE
5177 	    if (p_cst)
5178 		STRCPY(buf, "cstag ");
5179 	    else
5180 #endif
5181 		STRCPY(buf, "ts ");
5182 	    break;
5183 
5184 	default:
5185 	    if (curbuf->b_help)
5186 		STRCPY(buf, "he! ");
5187 	    else if (g_cmd)
5188 		STRCPY(buf, "tj ");
5189 	    else
5190 		STRCPY(buf, "ta ");
5191     }
5192 
5193     /*
5194      * Now grab the chars in the identifier
5195      */
5196     if (cmdchar == '*')
5197 	aux_ptr = (char_u *)(p_magic ? "/.*~[^$\\" : "/^$\\");
5198     else if (cmdchar == '#')
5199 	aux_ptr = (char_u *)(p_magic ? "/?.*~[^$\\" : "/?^$\\");
5200     else if (cmdchar == 'K' && !kp_help)
5201 	aux_ptr = (char_u *)" \t\\\"|!";
5202     else
5203 	/* Don't escape spaces and Tabs in a tag with a backslash */
5204 	aux_ptr = (char_u *)"\\|\"";
5205 
5206     p = buf + STRLEN(buf);
5207     while (n-- > 0)
5208     {
5209 	/* put a backslash before \ and some others */
5210 	if (vim_strchr(aux_ptr, *ptr) != NULL)
5211 	    *p++ = '\\';
5212 #ifdef FEAT_MBYTE
5213 	/* When current byte is a part of multibyte character, copy all bytes
5214 	 * of that character. */
5215 	if (has_mbyte)
5216 	{
5217 	    int i;
5218 	    int len = (*mb_ptr2len)(ptr) - 1;
5219 
5220 	    for (i = 0; i < len && n >= 1; ++i, --n)
5221 		*p++ = *ptr++;
5222 	}
5223 #endif
5224 	*p++ = *ptr++;
5225     }
5226     *p = NUL;
5227 
5228     /*
5229      * Execute the command.
5230      */
5231     if (cmdchar == '*' || cmdchar == '#')
5232     {
5233 	if (!g_cmd && (
5234 #ifdef FEAT_MBYTE
5235 		has_mbyte ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr)) :
5236 #endif
5237 		vim_iswordc(ptr[-1])))
5238 	    STRCAT(buf, "\\>");
5239 #ifdef FEAT_CMDHIST
5240 	/* put pattern in search history */
5241 	add_to_history(HIST_SEARCH, buf, TRUE, NUL);
5242 #endif
5243 	normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0);
5244     }
5245     else
5246 	do_cmdline_cmd(buf);
5247 
5248     vim_free(buf);
5249 }
5250 
5251 #if defined(FEAT_VISUAL) || defined(PROTO)
5252 /*
5253  * Get visually selected text, within one line only.
5254  * Returns FAIL if more than one line selected.
5255  */
5256     int
5257 get_visual_text(cap, pp, lenp)
5258     cmdarg_T	*cap;
5259     char_u	**pp;	    /* return: start of selected text */
5260     int		*lenp;	    /* return: length of selected text */
5261 {
5262     if (VIsual_mode != 'V')
5263 	unadjust_for_sel();
5264     if (VIsual.lnum != curwin->w_cursor.lnum)
5265     {
5266 	if (cap != NULL)
5267 	    clearopbeep(cap->oap);
5268 	return FAIL;
5269     }
5270     if (VIsual_mode == 'V')
5271     {
5272 	*pp = ml_get_curline();
5273 	*lenp = (int)STRLEN(*pp);
5274     }
5275     else
5276     {
5277 	if (lt(curwin->w_cursor, VIsual))
5278 	{
5279 	    *pp = ml_get_pos(&curwin->w_cursor);
5280 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
5281 	}
5282 	else
5283 	{
5284 	    *pp = ml_get_pos(&VIsual);
5285 	    *lenp = curwin->w_cursor.col - VIsual.col + 1;
5286 	}
5287 #ifdef FEAT_MBYTE
5288 	if (has_mbyte)
5289 	    /* Correct the length to include the whole last character. */
5290 	    *lenp += (*mb_ptr2len)(*pp + (*lenp - 1)) - 1;
5291 #endif
5292     }
5293     reset_VIsual_and_resel();
5294     return OK;
5295 }
5296 #endif
5297 
5298 /*
5299  * CTRL-T: backwards in tag stack
5300  */
5301     static void
5302 nv_tagpop(cap)
5303     cmdarg_T	*cap;
5304 {
5305     if (!checkclearopq(cap->oap))
5306 	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
5307 }
5308 
5309 /*
5310  * Handle scrolling command 'H', 'L' and 'M'.
5311  */
5312     static void
5313 nv_scroll(cap)
5314     cmdarg_T  *cap;
5315 {
5316     int		used = 0;
5317     long	n;
5318 #ifdef FEAT_FOLDING
5319     linenr_T	lnum;
5320 #endif
5321     int		half;
5322 
5323     cap->oap->motion_type = MLINE;
5324     setpcmark();
5325 
5326     if (cap->cmdchar == 'L')
5327     {
5328 	validate_botline();	    /* make sure curwin->w_botline is valid */
5329 	curwin->w_cursor.lnum = curwin->w_botline - 1;
5330 	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
5331 	    curwin->w_cursor.lnum = 1;
5332 	else
5333 	{
5334 #ifdef FEAT_FOLDING
5335 	    if (hasAnyFolding(curwin))
5336 	    {
5337 		/* Count a fold for one screen line. */
5338 		for (n = cap->count1 - 1; n > 0
5339 			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
5340 		{
5341 		    (void)hasFolding(curwin->w_cursor.lnum,
5342 						&curwin->w_cursor.lnum, NULL);
5343 		    --curwin->w_cursor.lnum;
5344 		}
5345 	    }
5346 	    else
5347 #endif
5348 		curwin->w_cursor.lnum -= cap->count1 - 1;
5349 	}
5350     }
5351     else
5352     {
5353 	if (cap->cmdchar == 'M')
5354 	{
5355 #ifdef FEAT_DIFF
5356 	    /* Don't count filler lines above the window. */
5357 	    used -= diff_check_fill(curwin, curwin->w_topline)
5358 							  - curwin->w_topfill;
5359 #endif
5360 	    validate_botline();	    /* make sure w_empty_rows is valid */
5361 	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
5362 	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
5363 	    {
5364 #ifdef FEAT_DIFF
5365 		/* Count half he number of filler lines to be "below this
5366 		 * line" and half to be "above the next line". */
5367 		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
5368 							     + n) / 2 >= half)
5369 		{
5370 		    --n;
5371 		    break;
5372 		}
5373 #endif
5374 		used += plines(curwin->w_topline + n);
5375 		if (used >= half)
5376 		    break;
5377 #ifdef FEAT_FOLDING
5378 		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
5379 		    n = lnum - curwin->w_topline;
5380 #endif
5381 	    }
5382 	    if (n > 0 && used > curwin->w_height)
5383 		--n;
5384 	}
5385 	else /* (cap->cmdchar == 'H') */
5386 	{
5387 	    n = cap->count1 - 1;
5388 #ifdef FEAT_FOLDING
5389 	    if (hasAnyFolding(curwin))
5390 	    {
5391 		/* Count a fold for one screen line. */
5392 		lnum = curwin->w_topline;
5393 		while (n-- > 0 && lnum < curwin->w_botline - 1)
5394 		{
5395 		    hasFolding(lnum, NULL, &lnum);
5396 		    ++lnum;
5397 		}
5398 		n = lnum - curwin->w_topline;
5399 	    }
5400 #endif
5401 	}
5402 	curwin->w_cursor.lnum = curwin->w_topline + n;
5403 	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
5404 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
5405     }
5406 
5407     cursor_correct();	/* correct for 'so' */
5408     beginline(BL_SOL | BL_FIX);
5409 }
5410 
5411 /*
5412  * Cursor right commands.
5413  */
5414     static void
5415 nv_right(cap)
5416     cmdarg_T	*cap;
5417 {
5418     long	n;
5419 #ifdef FEAT_VISUAL
5420     int		PAST_LINE;
5421 #else
5422 # define PAST_LINE 0
5423 #endif
5424 
5425     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5426     {
5427 	/* <C-Right> and <S-Right> move a word or WORD right */
5428 	if (mod_mask & MOD_MASK_CTRL)
5429 	    cap->arg = TRUE;
5430 	nv_wordcmd(cap);
5431 	return;
5432     }
5433 
5434     cap->oap->motion_type = MCHAR;
5435     cap->oap->inclusive = FALSE;
5436 #ifdef FEAT_VISUAL
5437     PAST_LINE = (VIsual_active && *p_sel != 'o');
5438 
5439 # ifdef FEAT_VIRTUALEDIT
5440     /*
5441      * In virtual mode, there's no such thing as "PAST_LINE", as lines are
5442      * (theoretically) infinitly long.
5443      */
5444     if (virtual_active())
5445 	PAST_LINE = 0;
5446 # endif
5447 #endif
5448 
5449     for (n = cap->count1; n > 0; --n)
5450     {
5451 	if ((!PAST_LINE && oneright() == FAIL)
5452 		|| (PAST_LINE && *ml_get_cursor() == NUL))
5453 	{
5454 	    /*
5455 	     *	  <Space> wraps to next line if 'whichwrap' bit 1 set.
5456 	     *	      'l' wraps to next line if 'whichwrap' bit 2 set.
5457 	     * CURS_RIGHT wraps to next line if 'whichwrap' bit 3 set
5458 	     */
5459 	    if (       ((cap->cmdchar == ' '
5460 			    && vim_strchr(p_ww, 's') != NULL)
5461 			|| (cap->cmdchar == 'l'
5462 			    && vim_strchr(p_ww, 'l') != NULL)
5463 			|| (cap->cmdchar == K_RIGHT
5464 			    && vim_strchr(p_ww, '>') != NULL))
5465 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
5466 	    {
5467 		/* When deleting we also count the NL as a character.
5468 		 * Set cap->oap->inclusive when last char in the line is
5469 		 * included, move to next line after that */
5470 		if (	   (cap->oap->op_type == OP_DELETE
5471 			    || cap->oap->op_type == OP_CHANGE)
5472 			&& !cap->oap->inclusive
5473 			&& !lineempty(curwin->w_cursor.lnum))
5474 		    cap->oap->inclusive = TRUE;
5475 		else
5476 		{
5477 		    ++curwin->w_cursor.lnum;
5478 		    curwin->w_cursor.col = 0;
5479 #ifdef FEAT_VIRTUALEDIT
5480 		    curwin->w_cursor.coladd = 0;
5481 #endif
5482 		    curwin->w_set_curswant = TRUE;
5483 		    cap->oap->inclusive = FALSE;
5484 		}
5485 		continue;
5486 	    }
5487 	    if (cap->oap->op_type == OP_NOP)
5488 	    {
5489 		/* Only beep and flush if not moved at all */
5490 		if (n == cap->count1)
5491 		    beep_flush();
5492 	    }
5493 	    else
5494 	    {
5495 		if (!lineempty(curwin->w_cursor.lnum))
5496 		    cap->oap->inclusive = TRUE;
5497 	    }
5498 	    break;
5499 	}
5500 #ifdef FEAT_VISUAL
5501 	else if (PAST_LINE)
5502 	{
5503 	    curwin->w_set_curswant = TRUE;
5504 # ifdef FEAT_VIRTUALEDIT
5505 	    if (virtual_active())
5506 		oneright();
5507 	    else
5508 # endif
5509 	    {
5510 # ifdef FEAT_MBYTE
5511 		if (has_mbyte)
5512 		    curwin->w_cursor.col +=
5513 					 (*mb_ptr2len)(ml_get_cursor());
5514 		else
5515 # endif
5516 		    ++curwin->w_cursor.col;
5517 	    }
5518 	}
5519 #endif
5520     }
5521 #ifdef FEAT_FOLDING
5522     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5523 					       && cap->oap->op_type == OP_NOP)
5524 	foldOpenCursor();
5525 #endif
5526 }
5527 
5528 /*
5529  * Cursor left commands.
5530  *
5531  * Returns TRUE when operator end should not be adjusted.
5532  */
5533     static void
5534 nv_left(cap)
5535     cmdarg_T	*cap;
5536 {
5537     long	n;
5538 
5539     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5540     {
5541 	/* <C-Left> and <S-Left> move a word or WORD left */
5542 	if (mod_mask & MOD_MASK_CTRL)
5543 	    cap->arg = 1;
5544 	nv_bck_word(cap);
5545 	return;
5546     }
5547 
5548     cap->oap->motion_type = MCHAR;
5549     cap->oap->inclusive = FALSE;
5550     for (n = cap->count1; n > 0; --n)
5551     {
5552 	if (oneleft() == FAIL)
5553 	{
5554 	    /* <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
5555 	     *		 'h' wraps to previous line if 'whichwrap' has 'h'.
5556 	     *	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
5557 	     */
5558 	    if (       (((cap->cmdchar == K_BS
5559 				|| cap->cmdchar == Ctrl_H)
5560 			    && vim_strchr(p_ww, 'b') != NULL)
5561 			|| (cap->cmdchar == 'h'
5562 			    && vim_strchr(p_ww, 'h') != NULL)
5563 			|| (cap->cmdchar == K_LEFT
5564 			    && vim_strchr(p_ww, '<') != NULL))
5565 		    && curwin->w_cursor.lnum > 1)
5566 	    {
5567 		--(curwin->w_cursor.lnum);
5568 		coladvance((colnr_T)MAXCOL);
5569 		curwin->w_set_curswant = TRUE;
5570 
5571 		/* When the NL before the first char has to be deleted we
5572 		 * put the cursor on the NUL after the previous line.
5573 		 * This is a very special case, be careful!
5574 		 * don't adjust op_end now, otherwise it won't work */
5575 		if (	   (cap->oap->op_type == OP_DELETE
5576 			    || cap->oap->op_type == OP_CHANGE)
5577 			&& !lineempty(curwin->w_cursor.lnum))
5578 		{
5579 		    ++curwin->w_cursor.col;
5580 		    cap->retval |= CA_NO_ADJ_OP_END;
5581 		}
5582 		continue;
5583 	    }
5584 	    /* Only beep and flush if not moved at all */
5585 	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
5586 		beep_flush();
5587 	    break;
5588 	}
5589     }
5590 #ifdef FEAT_FOLDING
5591     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
5592 					       && cap->oap->op_type == OP_NOP)
5593 	foldOpenCursor();
5594 #endif
5595 }
5596 
5597 /*
5598  * Cursor up commands.
5599  * cap->arg is TRUE for "-": Move cursor to first non-blank.
5600  */
5601     static void
5602 nv_up(cap)
5603     cmdarg_T	*cap;
5604 {
5605     if (mod_mask & MOD_MASK_SHIFT)
5606     {
5607 	/* <S-Up> is page up */
5608 	cap->arg = BACKWARD;
5609 	nv_page(cap);
5610     }
5611     else
5612     {
5613 	cap->oap->motion_type = MLINE;
5614 	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5615 	    clearopbeep(cap->oap);
5616 	else if (cap->arg)
5617 	    beginline(BL_WHITE | BL_FIX);
5618     }
5619 }
5620 
5621 /*
5622  * Cursor down commands.
5623  * cap->arg is TRUE for CR and "+": Move cursor to first non-blank.
5624  */
5625     static void
5626 nv_down(cap)
5627     cmdarg_T	*cap;
5628 {
5629     if (mod_mask & MOD_MASK_SHIFT)
5630     {
5631 	/* <S-Down> is page down */
5632 	cap->arg = FORWARD;
5633 	nv_page(cap);
5634     }
5635     else
5636 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
5637     /* In a quickfix window a <CR> jumps to the error under the cursor. */
5638     if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
5639 	do_cmdline_cmd((char_u *)".cc");
5640     else
5641 #endif
5642     {
5643 #ifdef FEAT_CMDWIN
5644 	/* In the cmdline window a <CR> executes the command. */
5645 	if (cmdwin_type != 0 && cap->cmdchar == CAR)
5646 	    cmdwin_result = CAR;
5647 	else
5648 #endif
5649 	{
5650 	    cap->oap->motion_type = MLINE;
5651 	    if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
5652 		clearopbeep(cap->oap);
5653 	    else if (cap->arg)
5654 		beginline(BL_WHITE | BL_FIX);
5655 	}
5656     }
5657 }
5658 
5659 #ifdef FEAT_SEARCHPATH
5660 /*
5661  * Grab the file name under the cursor and edit it.
5662  */
5663     static void
5664 nv_gotofile(cap)
5665     cmdarg_T	*cap;
5666 {
5667     char_u	*ptr;
5668 
5669 #ifdef FEAT_CMDWIN
5670     if (cmdwin_type != 0)
5671     {
5672 	clearopbeep(cap->oap);
5673 	return;
5674     }
5675 #endif
5676 
5677     ptr = grab_file_name(cap->count1);
5678 
5679     if (ptr != NULL)
5680     {
5681 	/* do autowrite if necessary */
5682 	if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !P_HID(curbuf))
5683 	    autowrite(curbuf, FALSE);
5684 	setpcmark();
5685 	(void)do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
5686 					       P_HID(curbuf) ? ECMD_HIDE : 0);
5687 	vim_free(ptr);
5688     }
5689     else
5690 	clearop(cap->oap);
5691 }
5692 #endif
5693 
5694 /*
5695  * <End> command: to end of current line or last line.
5696  */
5697     static void
5698 nv_end(cap)
5699     cmdarg_T	*cap;
5700 {
5701     if (cap->arg || (mod_mask & MOD_MASK_CTRL))	/* CTRL-END = goto last line */
5702     {
5703 	cap->arg = TRUE;
5704 	nv_goto(cap);
5705 	cap->count1 = 1;		/* to end of current line */
5706     }
5707     nv_dollar(cap);
5708 }
5709 
5710 /*
5711  * Handle the "$" command.
5712  */
5713     static void
5714 nv_dollar(cap)
5715     cmdarg_T	*cap;
5716 {
5717     cap->oap->motion_type = MCHAR;
5718     cap->oap->inclusive = TRUE;
5719 #ifdef FEAT_VIRTUALEDIT
5720     /* In virtual mode when off the edge of a line and an operator
5721      * is pending (whew!) keep the cursor where it is.
5722      * Otherwise, send it to the end of the line. */
5723     if (!virtual_active() || gchar_cursor() != NUL
5724 					       || cap->oap->op_type == OP_NOP)
5725 #endif
5726 	curwin->w_curswant = MAXCOL;	/* so we stay at the end */
5727     if (cursor_down((long)(cap->count1 - 1),
5728 					 cap->oap->op_type == OP_NOP) == FAIL)
5729 	clearopbeep(cap->oap);
5730 #ifdef FEAT_FOLDING
5731     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
5732 	foldOpenCursor();
5733 #endif
5734 }
5735 
5736 /*
5737  * Implementation of '?' and '/' commands.
5738  * If cap->arg is TRUE don't set PC mark.
5739  */
5740     static void
5741 nv_search(cap)
5742     cmdarg_T	    *cap;
5743 {
5744     oparg_T	*oap = cap->oap;
5745 
5746     if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
5747     {
5748 	/* Translate "g??" to "g?g?" */
5749 	cap->cmdchar = 'g';
5750 	cap->nchar = '?';
5751 	nv_operator(cap);
5752 	return;
5753     }
5754 
5755     cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0);
5756 
5757     if (cap->searchbuf == NULL)
5758     {
5759 	clearop(oap);
5760 	return;
5761     }
5762 
5763     normal_search(cap, cap->cmdchar, cap->searchbuf,
5764 						(cap->arg ? 0 : SEARCH_MARK));
5765 }
5766 
5767 /*
5768  * Handle "N" and "n" commands.
5769  * cap->arg is SEARCH_REV for "N", 0 for "n".
5770  */
5771     static void
5772 nv_next(cap)
5773     cmdarg_T	*cap;
5774 {
5775     normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
5776 }
5777 
5778 /*
5779  * Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
5780  * Uses only cap->count1 and cap->oap from "cap".
5781  */
5782     static void
5783 normal_search(cap, dir, pat, opt)
5784     cmdarg_T	*cap;
5785     int		dir;
5786     char_u	*pat;
5787     int		opt;		/* extra flags for do_search() */
5788 {
5789     int		i;
5790 
5791     cap->oap->motion_type = MCHAR;
5792     cap->oap->inclusive = FALSE;
5793     cap->oap->use_reg_one = TRUE;
5794     curwin->w_set_curswant = TRUE;
5795 
5796     i = do_search(cap->oap, dir, pat, cap->count1,
5797 				 opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG);
5798     if (i == 0)
5799 	clearop(cap->oap);
5800     else
5801     {
5802 	if (i == 2)
5803 	    cap->oap->motion_type = MLINE;
5804 #ifdef FEAT_VIRTUALEDIT
5805 	curwin->w_cursor.coladd = 0;
5806 #endif
5807 #ifdef FEAT_FOLDING
5808 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
5809 	    foldOpenCursor();
5810 #endif
5811     }
5812 
5813     /* "/$" will put the cursor after the end of the line, may need to
5814      * correct that here */
5815     check_cursor();
5816 }
5817 
5818 /*
5819  * Character search commands.
5820  * cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', TRUE for
5821  * ',' and FALSE for ';'.
5822  * cap->nchar is NUL for ',' and ';' (repeat the search)
5823  */
5824     static void
5825 nv_csearch(cap)
5826     cmdarg_T	*cap;
5827 {
5828     int		t_cmd;
5829 
5830     if (cap->cmdchar == 't' || cap->cmdchar == 'T')
5831 	t_cmd = TRUE;
5832     else
5833 	t_cmd = FALSE;
5834 
5835     cap->oap->motion_type = MCHAR;
5836     if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
5837 	clearopbeep(cap->oap);
5838     else
5839     {
5840 	curwin->w_set_curswant = TRUE;
5841 #ifdef FEAT_VIRTUALEDIT
5842 	/* Include a Tab for "tx" and for "dfx". */
5843 	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
5844 		&& (t_cmd || cap->oap->op_type != OP_NOP))
5845 	{
5846 	    colnr_T	scol, ecol;
5847 
5848 	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
5849 	    curwin->w_cursor.coladd = ecol - scol;
5850 	}
5851 	else
5852 	    curwin->w_cursor.coladd = 0;
5853 #endif
5854 #ifdef FEAT_VISUAL
5855 	adjust_for_sel(cap);
5856 #endif
5857 #ifdef FEAT_FOLDING
5858 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
5859 	    foldOpenCursor();
5860 #endif
5861     }
5862 }
5863 
5864 /*
5865  * "[" and "]" commands.
5866  * cap->arg is BACKWARD for "[" and FORWARD for "]".
5867  */
5868     static void
5869 nv_brackets(cap)
5870     cmdarg_T	*cap;
5871 {
5872     pos_T	new_pos;
5873     pos_T	prev_pos;
5874     pos_T	*pos = NULL;	    /* init for GCC */
5875     pos_T	old_pos;	    /* cursor position before command */
5876     int		flag;
5877     long	n;
5878     int		findc;
5879     int		c;
5880 
5881     cap->oap->motion_type = MCHAR;
5882     cap->oap->inclusive = FALSE;
5883     old_pos = curwin->w_cursor;
5884 #ifdef FEAT_VIRTUALEDIT
5885     curwin->w_cursor.coladd = 0;	    /* TODO: don't do this for an error. */
5886 #endif
5887 
5888 #ifdef FEAT_SEARCHPATH
5889     /*
5890      * "[f" or "]f" : Edit file under the cursor (same as "gf")
5891      */
5892     if (cap->nchar == 'f')
5893 	nv_gotofile(cap);
5894     else
5895 #endif
5896 
5897 #ifdef FEAT_FIND_ID
5898     /*
5899      * Find the occurence(s) of the identifier or define under cursor
5900      * in current and included files or jump to the first occurence.
5901      *
5902      *			search	     list	    jump
5903      *		      fwd   bwd    fwd	 bwd	 fwd	bwd
5904      * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
5905      * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
5906      */
5907     if (vim_strchr((char_u *)
5908 #ifdef EBCDIC
5909 		"iI\005dD\067",
5910 #else
5911 		"iI\011dD\004",
5912 #endif
5913 		cap->nchar) != NULL)
5914     {
5915 	char_u	*ptr;
5916 	int	len;
5917 
5918 	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
5919 	    clearop(cap->oap);
5920 	else
5921 	{
5922 	    find_pattern_in_path(ptr, 0, len, TRUE,
5923 		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
5924 		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
5925 		cap->count1,
5926 		isupper(cap->nchar) ? ACTION_SHOW_ALL :
5927 			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
5928 		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
5929 		(linenr_T)MAXLNUM);
5930 	    curwin->w_set_curswant = TRUE;
5931 	}
5932     }
5933     else
5934 #endif
5935 
5936     /*
5937      * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
5938      * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
5939      * "[/", "[*", "]/", "]*": go to Nth comment start/end.
5940      * "[m" or "]m" search for prev/next start of (Java) method.
5941      * "[M" or "]M" search for prev/next end of (Java) method.
5942      */
5943     if (  (cap->cmdchar == '['
5944 		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
5945 	    || (cap->cmdchar == ']'
5946 		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
5947     {
5948 	if (cap->nchar == '*')
5949 	    cap->nchar = '/';
5950 	new_pos.lnum = 0;
5951 	prev_pos.lnum = 0;
5952 	if (cap->nchar == 'm' || cap->nchar == 'M')
5953 	{
5954 	    if (cap->cmdchar == '[')
5955 		findc = '{';
5956 	    else
5957 		findc = '}';
5958 	    n = 9999;
5959 	}
5960 	else
5961 	{
5962 	    findc = cap->nchar;
5963 	    n = cap->count1;
5964 	}
5965 	for ( ; n > 0; --n)
5966 	{
5967 	    if ((pos = findmatchlimit(cap->oap, findc,
5968 		(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
5969 	    {
5970 		if (new_pos.lnum == 0)	/* nothing found */
5971 		{
5972 		    if (cap->nchar != 'm' && cap->nchar != 'M')
5973 			clearopbeep(cap->oap);
5974 		}
5975 		else
5976 		    pos = &new_pos;	/* use last one found */
5977 		break;
5978 	    }
5979 	    prev_pos = new_pos;
5980 	    curwin->w_cursor = *pos;
5981 	    new_pos = *pos;
5982 	}
5983 	curwin->w_cursor = old_pos;
5984 
5985 	/*
5986 	 * Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
5987 	 * brought us to the match for "[m" and "]M" when inside a method.
5988 	 * Try finding the '{' or '}' we want to be at.
5989 	 * Also repeat for the given count.
5990 	 */
5991 	if (cap->nchar == 'm' || cap->nchar == 'M')
5992 	{
5993 	    /* norm is TRUE for "]M" and "[m" */
5994 	    int	    norm = ((findc == '{') == (cap->nchar == 'm'));
5995 
5996 	    n = cap->count1;
5997 	    /* found a match: we were inside a method */
5998 	    if (prev_pos.lnum != 0)
5999 	    {
6000 		pos = &prev_pos;
6001 		curwin->w_cursor = prev_pos;
6002 		if (norm)
6003 		    --n;
6004 	    }
6005 	    else
6006 		pos = NULL;
6007 	    while (n > 0)
6008 	    {
6009 		for (;;)
6010 		{
6011 		    if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
6012 		    {
6013 			/* if not found anything, that's an error */
6014 			if (pos == NULL)
6015 			    clearopbeep(cap->oap);
6016 			n = 0;
6017 			break;
6018 		    }
6019 		    c = gchar_cursor();
6020 		    if (c == '{' || c == '}')
6021 		    {
6022 			/* Must have found end/start of class: use it.
6023 			 * Or found the place to be at. */
6024 			if ((c == findc && norm) || (n == 1 && !norm))
6025 			{
6026 			    new_pos = curwin->w_cursor;
6027 			    pos = &new_pos;
6028 			    n = 0;
6029 			}
6030 			/* if no match found at all, we started outside of the
6031 			 * class and we're inside now.  Just go on. */
6032 			else if (new_pos.lnum == 0)
6033 			{
6034 			    new_pos = curwin->w_cursor;
6035 			    pos = &new_pos;
6036 			}
6037 			/* found start/end of other method: go to match */
6038 			else if ((pos = findmatchlimit(cap->oap, findc,
6039 			    (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
6040 								  0)) == NULL)
6041 			    n = 0;
6042 			else
6043 			    curwin->w_cursor = *pos;
6044 			break;
6045 		    }
6046 		}
6047 		--n;
6048 	    }
6049 	    curwin->w_cursor = old_pos;
6050 	    if (pos == NULL && new_pos.lnum != 0)
6051 		clearopbeep(cap->oap);
6052 	}
6053 	if (pos != NULL)
6054 	{
6055 	    setpcmark();
6056 	    curwin->w_cursor = *pos;
6057 	    curwin->w_set_curswant = TRUE;
6058 #ifdef FEAT_FOLDING
6059 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped
6060 					       && cap->oap->op_type == OP_NOP)
6061 		foldOpenCursor();
6062 #endif
6063 	}
6064     }
6065 
6066     /*
6067      * "[[", "[]", "]]" and "][": move to start or end of function
6068      */
6069     else if (cap->nchar == '[' || cap->nchar == ']')
6070     {
6071 	if (cap->nchar == cap->cmdchar)		    /* "]]" or "[[" */
6072 	    flag = '{';
6073 	else
6074 	    flag = '}';		    /* "][" or "[]" */
6075 
6076 	curwin->w_set_curswant = TRUE;
6077 	/*
6078 	 * Imitate strange Vi behaviour: When using "]]" with an operator
6079 	 * we also stop at '}'.
6080 	 */
6081 	if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
6082 	      (cap->oap->op_type != OP_NOP
6083 				      && cap->arg == FORWARD && flag == '{')))
6084 	    clearopbeep(cap->oap);
6085 	else
6086 	{
6087 	    if (cap->oap->op_type == OP_NOP)
6088 		beginline(BL_WHITE | BL_FIX);
6089 #ifdef FEAT_FOLDING
6090 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6091 		foldOpenCursor();
6092 #endif
6093 	}
6094     }
6095 
6096     /*
6097      * "[p", "[P", "]P" and "]p": put with indent adjustment
6098      */
6099     else if (cap->nchar == 'p' || cap->nchar == 'P')
6100     {
6101 	if (!checkclearopq(cap->oap))
6102 	{
6103 	    prep_redo_cmd(cap);
6104 	    do_put(cap->oap->regname,
6105 	      (cap->cmdchar == ']' && cap->nchar == 'p') ? FORWARD : BACKWARD,
6106 						  cap->count1, PUT_FIXINDENT);
6107 	}
6108     }
6109 
6110     /*
6111      * "['", "[`", "]'" and "]`": jump to next mark
6112      */
6113     else if (cap->nchar == '\'' || cap->nchar == '`')
6114     {
6115 	pos = &curwin->w_cursor;
6116 	for (n = cap->count1; n > 0; --n)
6117 	{
6118 	    prev_pos = *pos;
6119 	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
6120 							  cap->nchar == '\'');
6121 	    if (pos == NULL)
6122 		break;
6123 	}
6124 	if (pos == NULL)
6125 	    pos = &prev_pos;
6126 	nv_cursormark(cap, cap->nchar == '\'', pos);
6127     }
6128 
6129 #ifdef FEAT_MOUSE
6130     /*
6131      * [ or ] followed by a middle mouse click: put selected text with
6132      * indent adjustment.  Any other button just does as usual.
6133      */
6134     else if (cap->nchar >= K_LEFTMOUSE && cap->nchar <= K_RIGHTRELEASE)
6135     {
6136 	(void)do_mouse(cap->oap, cap->nchar,
6137 		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
6138 		       cap->count1, PUT_FIXINDENT);
6139     }
6140 #endif /* FEAT_MOUSE */
6141 
6142 #ifdef FEAT_FOLDING
6143     /*
6144      * "[z" and "]z": move to start or end of open fold.
6145      */
6146     else if (cap->nchar == 'z')
6147     {
6148 	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6149 							 cap->count1) == FAIL)
6150 	    clearopbeep(cap->oap);
6151     }
6152 #endif
6153 
6154 #ifdef FEAT_DIFF
6155     /*
6156      * "[c" and "]c": move to next or previous diff-change.
6157      */
6158     else if (cap->nchar == 'c')
6159     {
6160 	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
6161 							 cap->count1) == FAIL)
6162 	    clearopbeep(cap->oap);
6163     }
6164 #endif
6165 
6166 #ifdef FEAT_SYN_HL
6167     /*
6168      * "[s", "[S", "]s" and "]S": move to next spell error.
6169      */
6170     else if (cap->nchar == 's' || cap->nchar == 'S')
6171     {
6172 	setpcmark();
6173 	for (n = 0; n < cap->count1; ++n)
6174 	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6175 			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
6176 	    {
6177 		clearopbeep(cap->oap);
6178 		break;
6179 	    }
6180     }
6181 #endif
6182 
6183     /* Not a valid cap->nchar. */
6184     else
6185 	clearopbeep(cap->oap);
6186 }
6187 
6188 /*
6189  * Handle Normal mode "%" command.
6190  */
6191     static void
6192 nv_percent(cap)
6193     cmdarg_T	*cap;
6194 {
6195     pos_T	*pos;
6196 #ifdef FEAT_FOLDING
6197     linenr_T	lnum = curwin->w_cursor.lnum;
6198 #endif
6199 
6200     cap->oap->inclusive = TRUE;
6201     if (cap->count0)	    /* {cnt}% : goto {cnt} percentage in file */
6202     {
6203 	if (cap->count0 > 100)
6204 	    clearopbeep(cap->oap);
6205 	else
6206 	{
6207 	    cap->oap->motion_type = MLINE;
6208 	    setpcmark();
6209 	    /* Round up, so CTRL-G will give same value.  Watch out for a
6210 	     * large line count, the line number must not go negative! */
6211 	    if (curbuf->b_ml.ml_line_count > 1000000)
6212 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99L)
6213 							 / 100L * cap->count0;
6214 	    else
6215 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
6216 						    cap->count0 + 99L) / 100L;
6217 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
6218 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6219 	    beginline(BL_SOL | BL_FIX);
6220 	}
6221     }
6222     else		    /* "%" : go to matching paren */
6223     {
6224 	cap->oap->motion_type = MCHAR;
6225 	cap->oap->use_reg_one = TRUE;
6226 	if ((pos = findmatch(cap->oap, NUL)) == NULL)
6227 	    clearopbeep(cap->oap);
6228 	else
6229 	{
6230 	    setpcmark();
6231 	    curwin->w_cursor = *pos;
6232 	    curwin->w_set_curswant = TRUE;
6233 #ifdef FEAT_VIRTUALEDIT
6234 	    curwin->w_cursor.coladd = 0;
6235 #endif
6236 #ifdef FEAT_VISUAL
6237 	    adjust_for_sel(cap);
6238 #endif
6239 	}
6240     }
6241 #ifdef FEAT_FOLDING
6242     if (cap->oap->op_type == OP_NOP
6243 	    && lnum != curwin->w_cursor.lnum
6244 	    && (fdo_flags & FDO_PERCENT)
6245 	    && KeyTyped)
6246 	foldOpenCursor();
6247 #endif
6248 }
6249 
6250 /*
6251  * Handle "(" and ")" commands.
6252  * cap->arg is BACKWARD for "(" and FORWARD for ")".
6253  */
6254     static void
6255 nv_brace(cap)
6256     cmdarg_T	*cap;
6257 {
6258     cap->oap->motion_type = MCHAR;
6259     cap->oap->use_reg_one = TRUE;
6260     if (cap->cmdchar == ')')
6261 	cap->oap->inclusive = FALSE;
6262     else
6263 	cap->oap->inclusive = TRUE;
6264     curwin->w_set_curswant = TRUE;
6265 
6266     if (findsent(cap->arg, cap->count1) == FAIL)
6267 	clearopbeep(cap->oap);
6268     else
6269     {
6270 #ifdef FEAT_VIRTUALEDIT
6271 	curwin->w_cursor.coladd = 0;
6272 #endif
6273 #ifdef FEAT_FOLDING
6274 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6275 	    foldOpenCursor();
6276 #endif
6277     }
6278 }
6279 
6280 /*
6281  * "m" command: Mark a position.
6282  */
6283     static void
6284 nv_mark(cap)
6285     cmdarg_T	*cap;
6286 {
6287     if (!checkclearop(cap->oap))
6288     {
6289 	if (setmark(cap->nchar) == FAIL)
6290 	    clearopbeep(cap->oap);
6291     }
6292 }
6293 
6294 /*
6295  * "{" and "}" commands.
6296  * cmd->arg is BACKWARD for "{" and FORWARD for "}".
6297  */
6298     static void
6299 nv_findpar(cap)
6300     cmdarg_T	*cap;
6301 {
6302     cap->oap->motion_type = MCHAR;
6303     cap->oap->inclusive = FALSE;
6304     cap->oap->use_reg_one = TRUE;
6305     curwin->w_set_curswant = TRUE;
6306     if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, FALSE))
6307 	clearopbeep(cap->oap);
6308     else
6309     {
6310 #ifdef FEAT_VIRTUALEDIT
6311 	curwin->w_cursor.coladd = 0;
6312 #endif
6313 #ifdef FEAT_FOLDING
6314 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6315 	    foldOpenCursor();
6316 #endif
6317     }
6318 }
6319 
6320 /*
6321  * "u" command: Undo or make lower case.
6322  */
6323     static void
6324 nv_undo(cap)
6325     cmdarg_T	*cap;
6326 {
6327     if (cap->oap->op_type == OP_LOWER
6328 #ifdef FEAT_VISUAL
6329 	    || VIsual_active
6330 #endif
6331 	    )
6332     {
6333 	/* translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu" */
6334 	cap->cmdchar = 'g';
6335 	cap->nchar = 'u';
6336 	nv_operator(cap);
6337     }
6338     else
6339 	nv_kundo(cap);
6340 }
6341 
6342 /*
6343  * <Undo> command.
6344  */
6345     static void
6346 nv_kundo(cap)
6347     cmdarg_T	*cap;
6348 {
6349     if (!checkclearopq(cap->oap))
6350     {
6351 	u_undo((int)cap->count1);
6352 	curwin->w_set_curswant = TRUE;
6353     }
6354 }
6355 
6356 /*
6357  * Handle the "r" command.
6358  */
6359     static void
6360 nv_replace(cap)
6361     cmdarg_T	*cap;
6362 {
6363     char_u	*ptr;
6364     int		had_ctrl_v;
6365     long	n;
6366 
6367     if (checkclearop(cap->oap))
6368 	return;
6369 
6370     /* get another character */
6371     if (cap->nchar == Ctrl_V)
6372     {
6373 	had_ctrl_v = Ctrl_V;
6374 	cap->nchar = get_literal();
6375 	/* Don't redo a multibyte character with CTRL-V. */
6376 	if (cap->nchar > DEL)
6377 	    had_ctrl_v = NUL;
6378     }
6379     else
6380 	had_ctrl_v = NUL;
6381 
6382 #ifdef FEAT_VISUAL
6383     /* Visual mode "r" */
6384     if (VIsual_active)
6385     {
6386 	nv_operator(cap);
6387 	return;
6388     }
6389 #endif
6390 
6391 #ifdef FEAT_VIRTUALEDIT
6392     /* Break tabs, etc. */
6393     if (virtual_active())
6394     {
6395 	if (u_save_cursor() == FAIL)
6396 	    return;
6397 	if (gchar_cursor() == NUL)
6398 	{
6399 	    /* Add extra space and put the cursor on the first one. */
6400 	    coladvance_force((colnr_T)(getviscol() + cap->count1));
6401 	    curwin->w_cursor.col -= cap->count1;
6402 	}
6403 	else if (gchar_cursor() == TAB)
6404 	    coladvance_force(getviscol());
6405     }
6406 #endif
6407 
6408     /*
6409      * Check for a special key or not enough characters to replace.
6410      */
6411     ptr = ml_get_cursor();
6412     if (IS_SPECIAL(cap->nchar) || STRLEN(ptr) < (unsigned)cap->count1
6413 #ifdef FEAT_MBYTE
6414 	    || (has_mbyte && mb_charlen(ptr) < cap->count1)
6415 #endif
6416 	    )
6417     {
6418 	clearopbeep(cap->oap);
6419 	return;
6420     }
6421 
6422     /*
6423      * Replacing with a TAB is done by edit() when it is complicated because
6424      * 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
6425      * Other characters are done below to avoid problems with things like
6426      * CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
6427      */
6428     if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
6429     {
6430 	stuffnumReadbuff(cap->count1);
6431 	stuffcharReadbuff('R');
6432 	stuffcharReadbuff('\t');
6433 	stuffcharReadbuff(ESC);
6434 	return;
6435     }
6436 
6437     /* save line for undo */
6438     if (u_save_cursor() == FAIL)
6439 	return;
6440 
6441     if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
6442     {
6443 	/*
6444 	 * Replace character(s) by a single newline.
6445 	 * Strange vi behaviour: Only one newline is inserted.
6446 	 * Delete the characters here.
6447 	 * Insert the newline with an insert command, takes care of
6448 	 * autoindent.	The insert command depends on being on the last
6449 	 * character of a line or not.
6450 	 */
6451 #ifdef FEAT_MBYTE
6452 	(void)del_chars(cap->count1, FALSE);	/* delete the characters */
6453 #else
6454 	(void)del_bytes(cap->count1, FALSE);	/* delete the characters */
6455 #endif
6456 	stuffcharReadbuff('\r');
6457 	stuffcharReadbuff(ESC);
6458 
6459 	/* Give 'r' to edit(), to get the redo command right. */
6460 	invoke_edit(cap, TRUE, 'r', FALSE);
6461     }
6462     else
6463     {
6464 	prep_redo(cap->oap->regname, cap->count1,
6465 				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);
6466 
6467 	curbuf->b_op_start = curwin->w_cursor;
6468 #ifdef FEAT_MBYTE
6469 	if (has_mbyte)
6470 	{
6471 	    int		old_State = State;
6472 
6473 	    if (cap->ncharC1 != 0)
6474 		AppendCharToRedobuff(cap->ncharC1);
6475 	    if (cap->ncharC2 != 0)
6476 		AppendCharToRedobuff(cap->ncharC2);
6477 
6478 	    /* This is slow, but it handles replacing a single-byte with a
6479 	     * multi-byte and the other way around.  Also handles adding
6480 	     * composing characters for utf-8. */
6481 	    for (n = cap->count1; n > 0; --n)
6482 	    {
6483 		State = REPLACE;
6484 		ins_char(cap->nchar);
6485 		State = old_State;
6486 		if (cap->ncharC1 != 0)
6487 		    ins_char(cap->ncharC1);
6488 		if (cap->ncharC2 != 0)
6489 		    ins_char(cap->ncharC2);
6490 	    }
6491 	}
6492 	else
6493 #endif
6494 	{
6495 	    /*
6496 	     * Replace the characters within one line.
6497 	     */
6498 	    for (n = cap->count1; n > 0; --n)
6499 	    {
6500 		/*
6501 		 * Get ptr again, because u_save and/or showmatch() will have
6502 		 * released the line.  At the same time we let know that the
6503 		 * line will be changed.
6504 		 */
6505 		ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
6506 		ptr[curwin->w_cursor.col] = cap->nchar;
6507 		if (p_sm && msg_silent == 0)
6508 		    showmatch(cap->nchar);
6509 		++curwin->w_cursor.col;
6510 	    }
6511 #ifdef FEAT_NETBEANS_INTG
6512 	    if (usingNetbeans)
6513 	    {
6514 		colnr_T start = (colnr_T)(curwin->w_cursor.col - cap->count1);
6515 
6516 		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
6517 							    (long)cap->count1);
6518 		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
6519 					       &ptr[start], (int)cap->count1);
6520 	    }
6521 #endif
6522 
6523 	    /* mark the buffer as changed and prepare for displaying */
6524 	    changed_bytes(curwin->w_cursor.lnum,
6525 			       (colnr_T)(curwin->w_cursor.col - cap->count1));
6526 	}
6527 	--curwin->w_cursor.col;	    /* cursor on the last replaced char */
6528 #ifdef FEAT_MBYTE
6529 	/* if the character on the left of the current cursor is a multi-byte
6530 	 * character, move two characters left */
6531 	if (has_mbyte)
6532 	    mb_adjust_cursor();
6533 #endif
6534 	curbuf->b_op_end = curwin->w_cursor;
6535 	curwin->w_set_curswant = TRUE;
6536 	set_last_insert(cap->nchar);
6537     }
6538 }
6539 
6540 #ifdef FEAT_VISUAL
6541 /*
6542  * 'o': Exchange start and end of Visual area.
6543  * 'O': same, but in block mode exchange left and right corners.
6544  */
6545     static void
6546 v_swap_corners(cmdchar)
6547     int		cmdchar;
6548 {
6549     pos_T	old_cursor;
6550     colnr_T	left, right;
6551 
6552     if (cmdchar == 'O' && VIsual_mode == Ctrl_V)
6553     {
6554 	old_cursor = curwin->w_cursor;
6555 	getvcols(curwin, &old_cursor, &VIsual, &left, &right);
6556 	curwin->w_cursor.lnum = VIsual.lnum;
6557 	coladvance(left);
6558 	VIsual = curwin->w_cursor;
6559 
6560 	curwin->w_cursor.lnum = old_cursor.lnum;
6561 	curwin->w_curswant = right;
6562 	/* 'selection "exclusive" and cursor at right-bottom corner: move it
6563 	 * right one column */
6564 	if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e')
6565 	    ++curwin->w_curswant;
6566 	coladvance(curwin->w_curswant);
6567 	if (curwin->w_cursor.col == old_cursor.col
6568 #ifdef FEAT_VIRTUALEDIT
6569 		&& (!virtual_active()
6570 		    || curwin->w_cursor.coladd == old_cursor.coladd)
6571 #endif
6572 		)
6573 	{
6574 	    curwin->w_cursor.lnum = VIsual.lnum;
6575 	    if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e')
6576 		++right;
6577 	    coladvance(right);
6578 	    VIsual = curwin->w_cursor;
6579 
6580 	    curwin->w_cursor.lnum = old_cursor.lnum;
6581 	    coladvance(left);
6582 	    curwin->w_curswant = left;
6583 	}
6584     }
6585     else
6586     {
6587 	old_cursor = curwin->w_cursor;
6588 	curwin->w_cursor = VIsual;
6589 	VIsual = old_cursor;
6590 	curwin->w_set_curswant = TRUE;
6591     }
6592 }
6593 #endif /* FEAT_VISUAL */
6594 
6595 /*
6596  * "R" (cap->arg is FALSE) and "gR" (cap->arg is TRUE).
6597  */
6598     static void
6599 nv_Replace(cap)
6600     cmdarg_T	    *cap;
6601 {
6602 #ifdef FEAT_VISUAL
6603     if (VIsual_active)		/* "R" is replace lines */
6604     {
6605 	cap->cmdchar = 'c';
6606 	cap->nchar = NUL;
6607 	VIsual_mode = 'V';
6608 	nv_operator(cap);
6609     }
6610     else
6611 #endif
6612 	if (!checkclearopq(cap->oap))
6613     {
6614 	if (!curbuf->b_p_ma)
6615 	    EMSG(_(e_modifiable));
6616 	else
6617 	{
6618 #ifdef FEAT_VIRTUALEDIT
6619 	    if (virtual_active())
6620 		coladvance(getviscol());
6621 #endif
6622 	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
6623 	}
6624     }
6625 }
6626 
6627 #ifdef FEAT_VREPLACE
6628 /*
6629  * "gr".
6630  */
6631     static void
6632 nv_vreplace(cap)
6633     cmdarg_T	*cap;
6634 {
6635 # ifdef FEAT_VISUAL
6636     if (VIsual_active)
6637     {
6638 	cap->cmdchar = 'r';
6639 	cap->nchar = cap->extra_char;
6640 	nv_replace(cap);	/* Do same as "r" in Visual mode for now */
6641     }
6642     else
6643 # endif
6644 	if (!checkclearopq(cap->oap))
6645     {
6646 	if (!curbuf->b_p_ma)
6647 	    EMSG(_(e_modifiable));
6648 	else
6649 	{
6650 	    if (cap->extra_char == Ctrl_V)	/* get another character */
6651 		cap->extra_char = get_literal();
6652 	    stuffcharReadbuff(cap->extra_char);
6653 	    stuffcharReadbuff(ESC);
6654 # ifdef FEAT_VIRTUALEDIT
6655 	    if (virtual_active())
6656 		coladvance(getviscol());
6657 # endif
6658 	    invoke_edit(cap, TRUE, 'v', FALSE);
6659 	}
6660     }
6661 }
6662 #endif
6663 
6664 /*
6665  * Swap case for "~" command, when it does not work like an operator.
6666  */
6667     static void
6668 n_swapchar(cap)
6669     cmdarg_T	*cap;
6670 {
6671     long	n;
6672     pos_T	startpos;
6673     int		did_change = 0;
6674 #ifdef FEAT_NETBEANS_INTG
6675     pos_T	pos;
6676     char_u	*ptr;
6677     int		count;
6678 #endif
6679 
6680     if (checkclearopq(cap->oap))
6681 	return;
6682 
6683     if (lineempty(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
6684     {
6685 	clearopbeep(cap->oap);
6686 	return;
6687     }
6688 
6689     prep_redo_cmd(cap);
6690 
6691     if (u_save_cursor() == FAIL)
6692 	return;
6693 
6694     startpos = curwin->w_cursor;
6695 #ifdef FEAT_NETBEANS_INTG
6696     pos = startpos;
6697 #endif
6698     for (n = cap->count1; n > 0; --n)
6699     {
6700 	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
6701 	inc_cursor();
6702 	if (gchar_cursor() == NUL)
6703 	{
6704 	    if (vim_strchr(p_ww, '~') != NULL
6705 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
6706 	    {
6707 #ifdef FEAT_NETBEANS_INTG
6708 		if (usingNetbeans)
6709 		{
6710 		    if (did_change)
6711 		    {
6712 			ptr = ml_get(pos.lnum);
6713 			count = STRLEN(ptr) - pos.col;
6714 			netbeans_removed(curbuf, pos.lnum, pos.col,
6715 								 (long)count);
6716 			netbeans_inserted(curbuf, pos.lnum, pos.col,
6717 							&ptr[pos.col], count);
6718 		    }
6719 		    pos.col = 0;
6720 		    pos.lnum++;
6721 		}
6722 #endif
6723 		++curwin->w_cursor.lnum;
6724 		curwin->w_cursor.col = 0;
6725 		if (n > 1)
6726 		{
6727 		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
6728 			break;
6729 		    u_clearline();
6730 		}
6731 	    }
6732 	    else
6733 		break;
6734 	}
6735     }
6736 #ifdef FEAT_NETBEANS_INTG
6737     if (did_change && usingNetbeans)
6738     {
6739 	ptr = ml_get(pos.lnum);
6740 	count = curwin->w_cursor.col - pos.col;
6741 	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
6742 	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
6743     }
6744 #endif
6745 
6746 
6747     check_cursor();
6748     curwin->w_set_curswant = TRUE;
6749     if (did_change)
6750     {
6751 	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
6752 									  0L);
6753 	curbuf->b_op_start = startpos;
6754 	curbuf->b_op_end = curwin->w_cursor;
6755 	if (curbuf->b_op_end.col > 0)
6756 	    --curbuf->b_op_end.col;
6757     }
6758 }
6759 
6760 /*
6761  * Move cursor to mark.
6762  */
6763     static void
6764 nv_cursormark(cap, flag, pos)
6765     cmdarg_T	*cap;
6766     int		flag;
6767     pos_T	*pos;
6768 {
6769     if (check_mark(pos) == FAIL)
6770 	clearop(cap->oap);
6771     else
6772     {
6773 	if (cap->cmdchar == '\''
6774 		|| cap->cmdchar == '`'
6775 		|| cap->cmdchar == '['
6776 		|| cap->cmdchar == ']')
6777 	    setpcmark();
6778 	curwin->w_cursor = *pos;
6779 	if (flag)
6780 	    beginline(BL_WHITE | BL_FIX);
6781 	else
6782 	    check_cursor();
6783     }
6784     cap->oap->motion_type = flag ? MLINE : MCHAR;
6785     if (cap->cmdchar == '`')
6786 	cap->oap->use_reg_one = TRUE;
6787     cap->oap->inclusive = FALSE;		/* ignored if not MCHAR */
6788     curwin->w_set_curswant = TRUE;
6789 }
6790 
6791 #ifdef FEAT_VISUAL
6792 /*
6793  * Handle commands that are operators in Visual mode.
6794  */
6795     static void
6796 v_visop(cap)
6797     cmdarg_T	*cap;
6798 {
6799     static char_u trans[] = "YyDdCcxdXdAAIIrr";
6800 
6801     /* Uppercase means linewise, except in block mode, then "D" deletes till
6802      * the end of the line, and "C" replaces til EOL */
6803     if (isupper(cap->cmdchar))
6804     {
6805 	if (VIsual_mode != Ctrl_V)
6806 	    VIsual_mode = 'V';
6807 	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
6808 	    curwin->w_curswant = MAXCOL;
6809     }
6810     cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
6811     nv_operator(cap);
6812 }
6813 #endif
6814 
6815 /*
6816  * "s" and "S" commands.
6817  */
6818     static void
6819 nv_subst(cap)
6820     cmdarg_T	*cap;
6821 {
6822 #ifdef FEAT_VISUAL
6823     if (VIsual_active)	/* "vs" and "vS" are the same as "vc" */
6824     {
6825 	if (cap->cmdchar == 'S')
6826 	    VIsual_mode = 'V';
6827 	cap->cmdchar = 'c';
6828 	nv_operator(cap);
6829     }
6830     else
6831 #endif
6832 	nv_optrans(cap);
6833 }
6834 
6835 /*
6836  * Abbreviated commands.
6837  */
6838     static void
6839 nv_abbrev(cap)
6840     cmdarg_T	*cap;
6841 {
6842     if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
6843 	cap->cmdchar = 'x';		/* DEL key behaves like 'x' */
6844 
6845 #ifdef FEAT_VISUAL
6846     /* in Visual mode these commands are operators */
6847     if (VIsual_active)
6848 	v_visop(cap);
6849     else
6850 #endif
6851 	nv_optrans(cap);
6852 }
6853 
6854 /*
6855  * Translate a command into another command.
6856  */
6857     static void
6858 nv_optrans(cap)
6859     cmdarg_T	*cap;
6860 {
6861     static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
6862 			      (char_u *)"d$", (char_u *)"c$",
6863 			      (char_u *)"cl", (char_u *)"cc",
6864 			      (char_u *)"yy", (char_u *)":s\r"};
6865     static char_u *str = (char_u *)"xXDCsSY&";
6866 
6867     if (!checkclearopq(cap->oap))
6868     {
6869 	/* In Vi "2D" doesn't delete the next line.  Can't translate it
6870 	 * either, because "2." should also not use the count. */
6871 	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
6872 	{
6873 	    cap->oap->start = curwin->w_cursor;
6874 	    cap->oap->op_type = OP_DELETE;
6875 	    cap->count1 = 1;
6876 	    nv_dollar(cap);
6877 	    finish_op = TRUE;
6878 	    ResetRedobuff();
6879 	    AppendCharToRedobuff('D');
6880 	}
6881 	else
6882 	{
6883 	    if (cap->count0)
6884 		stuffnumReadbuff(cap->count0);
6885 	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
6886 	}
6887     }
6888     cap->opcount = 0;
6889 }
6890 
6891 /*
6892  * "'" and "`" commands.  Also for "g'" and "g`".
6893  * cap->arg is TRUE for "'" and "g'".
6894  */
6895     static void
6896 nv_gomark(cap)
6897     cmdarg_T	*cap;
6898 {
6899     pos_T	*pos;
6900     int		c;
6901 #ifdef FEAT_FOLDING
6902     linenr_T	lnum = curwin->w_cursor.lnum;
6903     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
6904 #endif
6905 
6906     if (cap->cmdchar == 'g')
6907 	c = cap->extra_char;
6908     else
6909 	c = cap->nchar;
6910     pos = getmark(c, (cap->oap->op_type == OP_NOP));
6911     if (pos == (pos_T *)-1)	    /* jumped to other file */
6912     {
6913 	if (cap->arg)
6914 	{
6915 	    check_cursor_lnum();
6916 	    beginline(BL_WHITE | BL_FIX);
6917 	}
6918 	else
6919 	    check_cursor();
6920     }
6921     else
6922 	nv_cursormark(cap, cap->arg, pos);
6923 
6924 #ifdef FEAT_VIRTUALEDIT
6925     /* May need to clear the coladd that a mark includes. */
6926     if (!virtual_active())
6927 	curwin->w_cursor.coladd = 0;
6928 #endif
6929 #ifdef FEAT_FOLDING
6930     if (cap->oap->op_type == OP_NOP
6931 	    && (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
6932 	    && (fdo_flags & FDO_MARK)
6933 	    && old_KeyTyped)
6934 	foldOpenCursor();
6935 #endif
6936 }
6937 
6938 /*
6939  * Handle CTRL-O, CTRL-I, "g;" and "g," commands.
6940  */
6941     static void
6942 nv_pcmark(cap)
6943     cmdarg_T	*cap;
6944 {
6945 #ifdef FEAT_JUMPLIST
6946     pos_T	*pos;
6947 # ifdef FEAT_FOLDING
6948     linenr_T	lnum = curwin->w_cursor.lnum;
6949     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
6950 # endif
6951 
6952     if (!checkclearopq(cap->oap))
6953     {
6954 	if (cap->cmdchar == 'g')
6955 	    pos = movechangelist((int)cap->count1);
6956 	else
6957 	    pos = movemark((int)cap->count1);
6958 	if (pos == (pos_T *)-1)		/* jump to other file */
6959 	{
6960 	    curwin->w_set_curswant = TRUE;
6961 	    check_cursor();
6962 	}
6963 	else if (pos != NULL)		    /* can jump */
6964 	    nv_cursormark(cap, FALSE, pos);
6965 	else if (cap->cmdchar == 'g')
6966 	{
6967 	    if (curbuf->b_changelistlen == 0)
6968 		EMSG(_("E664: changelist is empty"));
6969 	    else if (cap->count1 < 0)
6970 		EMSG(_("E662: At start of changelist"));
6971 	    else
6972 		EMSG(_("E663: At end of changelist"));
6973 	}
6974 	else
6975 	    clearopbeep(cap->oap);
6976 # ifdef FEAT_FOLDING
6977 	if (cap->oap->op_type == OP_NOP
6978 		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
6979 		&& (fdo_flags & FDO_MARK)
6980 		&& old_KeyTyped)
6981 	    foldOpenCursor();
6982 # endif
6983     }
6984 #else
6985     clearopbeep(cap->oap);
6986 #endif
6987 }
6988 
6989 /*
6990  * Handle '"' command.
6991  */
6992     static void
6993 nv_regname(cap)
6994     cmdarg_T	*cap;
6995 {
6996     if (checkclearop(cap->oap))
6997 	return;
6998 #ifdef FEAT_EVAL
6999     if (cap->nchar == '=')
7000 	cap->nchar = get_expr_register();
7001 #endif
7002     if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
7003     {
7004 	cap->oap->regname = cap->nchar;
7005 	cap->opcount = cap->count0;	/* remember count before '"' */
7006 #ifdef FEAT_EVAL
7007 	set_reg_var(cap->oap->regname);
7008 #endif
7009     }
7010     else
7011 	clearopbeep(cap->oap);
7012 }
7013 
7014 #ifdef FEAT_VISUAL
7015 /*
7016  * Handle "v", "V" and "CTRL-V" commands.
7017  * Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
7018  * is TRUE.
7019  * Handle CTRL-Q just like CTRL-V.
7020  */
7021     static void
7022 nv_visual(cap)
7023     cmdarg_T	*cap;
7024 {
7025     if (cap->cmdchar == Ctrl_Q)
7026 	cap->cmdchar = Ctrl_V;
7027 
7028     /* 'v', 'V' and CTRL-V can be used while an operator is pending to make it
7029      * characterwise, linewise, or blockwise. */
7030     if (cap->oap->op_type != OP_NOP)
7031     {
7032 	cap->oap->motion_force = cap->cmdchar;
7033 	finish_op = FALSE;	/* operator doesn't finish now but later */
7034 	return;
7035     }
7036 
7037     VIsual_select = cap->arg;
7038     if (VIsual_active)	    /* change Visual mode */
7039     {
7040 	if (VIsual_mode == cap->cmdchar)    /* stop visual mode */
7041 	    end_visual_mode();
7042 	else				    /* toggle char/block mode */
7043 	{				    /*	   or char/line mode */
7044 	    VIsual_mode = cap->cmdchar;
7045 	    showmode();
7046 	}
7047 	redraw_curbuf_later(INVERTED);	    /* update the inversion */
7048     }
7049     else		    /* start Visual mode */
7050     {
7051 	check_visual_highlight();
7052 	if (cap->count0)		    /* use previously selected part */
7053 	{
7054 	    if (resel_VIsual_mode == NUL)   /* there is none */
7055 	    {
7056 		beep_flush();
7057 		return;
7058 	    }
7059 	    VIsual = curwin->w_cursor;
7060 
7061 	    VIsual_active = TRUE;
7062 	    VIsual_reselect = TRUE;
7063 	    if (!cap->arg)
7064 		/* start Select mode when 'selectmode' contains "cmd" */
7065 		may_start_select('c');
7066 #ifdef FEAT_MOUSE
7067 	    setmouse();
7068 #endif
7069 	    if (p_smd)
7070 		redraw_cmdline = TRUE;	    /* show visual mode later */
7071 	    /*
7072 	     * For V and ^V, we multiply the number of lines even if there
7073 	     * was only one -- webb
7074 	     */
7075 	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
7076 	    {
7077 		curwin->w_cursor.lnum +=
7078 				    resel_VIsual_line_count * cap->count0 - 1;
7079 		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
7080 		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
7081 	    }
7082 	    VIsual_mode = resel_VIsual_mode;
7083 	    if (VIsual_mode == 'v')
7084 	    {
7085 		if (resel_VIsual_line_count <= 1)
7086 		    curwin->w_cursor.col += resel_VIsual_col * cap->count0 - 1;
7087 		else
7088 		    curwin->w_cursor.col = resel_VIsual_col;
7089 		check_cursor_col();
7090 	    }
7091 	    if (resel_VIsual_col == MAXCOL)
7092 	    {
7093 		curwin->w_curswant = MAXCOL;
7094 		coladvance((colnr_T)MAXCOL);
7095 	    }
7096 	    else if (VIsual_mode == Ctrl_V)
7097 	    {
7098 		validate_virtcol();
7099 		curwin->w_curswant = curwin->w_virtcol
7100 					 + resel_VIsual_col * cap->count0 - 1;
7101 		coladvance(curwin->w_curswant);
7102 	    }
7103 	    else
7104 		curwin->w_set_curswant = TRUE;
7105 	    redraw_curbuf_later(INVERTED);	/* show the inversion */
7106 	}
7107 	else
7108 	{
7109 	    if (!cap->arg)
7110 		/* start Select mode when 'selectmode' contains "cmd" */
7111 		may_start_select('c');
7112 	    n_start_visual_mode(cap->cmdchar);
7113 	}
7114     }
7115 }
7116 
7117 /*
7118  * Start selection for Shift-movement keys.
7119  */
7120     void
7121 start_selection()
7122 {
7123     /* if 'selectmode' contains "key", start Select mode */
7124     may_start_select('k');
7125     n_start_visual_mode('v');
7126 }
7127 
7128 /*
7129  * Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
7130  */
7131     void
7132 may_start_select(c)
7133     int		c;
7134 {
7135     VIsual_select = (stuff_empty() && typebuf_typed()
7136 		    && (vim_strchr(p_slm, c) != NULL));
7137 }
7138 
7139 /*
7140  * Start Visual mode "c".
7141  * Should set VIsual_select before calling this.
7142  */
7143     static void
7144 n_start_visual_mode(c)
7145     int		c;
7146 {
7147     VIsual_mode = c;
7148     VIsual_active = TRUE;
7149     VIsual_reselect = TRUE;
7150 #ifdef FEAT_VIRTUALEDIT
7151     /* Corner case: the 0 position in a tab may change when going into
7152      * virtualedit.  Recalculate curwin->w_cursor to avoid bad hilighting.
7153      */
7154     if (c == Ctrl_V && (ve_flags & VE_BLOCK) && gchar_cursor() == TAB)
7155 	coladvance(curwin->w_virtcol);
7156 #endif
7157     VIsual = curwin->w_cursor;
7158 
7159 #ifdef FEAT_FOLDING
7160     foldAdjustVisual();
7161 #endif
7162 
7163 #ifdef FEAT_MOUSE
7164     setmouse();
7165 #endif
7166     if (p_smd)
7167 	redraw_cmdline = TRUE;	/* show visual mode later */
7168 #ifdef FEAT_CLIPBOARD
7169     /* Make sure the clipboard gets updated.  Needed because start and
7170      * end may still be the same, and the selection needs to be owned */
7171     clip_star.vmode = NUL;
7172 #endif
7173 
7174     /* Only need to redraw this line, unless still need to redraw an old
7175      * Visual area (when 'lazyredraw' is set). */
7176     if (curwin->w_redr_type < INVERTED)
7177     {
7178 	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
7179 	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
7180     }
7181 }
7182 
7183 #endif /* FEAT_VISUAL */
7184 
7185 /*
7186  * CTRL-W: Window commands
7187  */
7188     static void
7189 nv_window(cap)
7190     cmdarg_T	*cap;
7191 {
7192 #ifdef FEAT_WINDOWS
7193     if (!checkclearop(cap->oap))
7194 	do_window(cap->nchar, cap->count0, NUL); /* everything is in window.c */
7195 #else
7196     (void)checkclearop(cap->oap);
7197 #endif
7198 }
7199 
7200 /*
7201  * CTRL-Z: Suspend
7202  */
7203     static void
7204 nv_suspend(cap)
7205     cmdarg_T	*cap;
7206 {
7207     clearop(cap->oap);
7208 #ifdef FEAT_VISUAL
7209     if (VIsual_active)
7210 	end_visual_mode();		/* stop Visual mode */
7211 #endif
7212     do_cmdline_cmd((char_u *)"st");
7213 }
7214 
7215 /*
7216  * Commands starting with "g".
7217  */
7218     static void
7219 nv_g_cmd(cap)
7220     cmdarg_T	*cap;
7221 {
7222     oparg_T	*oap = cap->oap;
7223 #ifdef FEAT_VISUAL
7224     pos_T	tpos;
7225 #endif
7226     int		i;
7227     int		flag = FALSE;
7228 
7229     switch (cap->nchar)
7230     {
7231 #ifdef MEM_PROFILE
7232     /*
7233      * "g^A": dump log of used memory.
7234      */
7235     case Ctrl_A:
7236 	vim_mem_profile_dump();
7237 	break;
7238 #endif
7239 
7240 #ifdef FEAT_VREPLACE
7241     /*
7242      * "gR": Enter virtual replace mode.
7243      */
7244     case 'R':
7245 	cap->arg = TRUE;
7246 	nv_Replace(cap);
7247 	break;
7248 
7249     case 'r':
7250 	nv_vreplace(cap);
7251 	break;
7252 #endif
7253 
7254     case '&':
7255 	do_cmdline_cmd((char_u *)"%s//~/&");
7256 	break;
7257 
7258 #ifdef FEAT_VISUAL
7259     /*
7260      * "gv": Reselect the previous Visual area.  If Visual already active,
7261      *	     exchange previous and current Visual area.
7262      */
7263     case 'v':
7264 	if (checkclearop(oap))
7265 	    break;
7266 
7267 	if (	   curbuf->b_visual_start.lnum == 0
7268 		|| curbuf->b_visual_start.lnum > curbuf->b_ml.ml_line_count
7269 		|| curbuf->b_visual_end.lnum == 0)
7270 	    beep_flush();
7271 	else
7272 	{
7273 	    /* set w_cursor to the start of the Visual area, tpos to the end */
7274 	    if (VIsual_active)
7275 	    {
7276 		i = VIsual_mode;
7277 		VIsual_mode = curbuf->b_visual_mode;
7278 		curbuf->b_visual_mode = i;
7279 # ifdef FEAT_EVAL
7280 		curbuf->b_visual_mode_eval = i;
7281 # endif
7282 		i = curwin->w_curswant;
7283 		curwin->w_curswant = curbuf->b_visual_curswant;
7284 		curbuf->b_visual_curswant = i;
7285 
7286 		tpos = curbuf->b_visual_end;
7287 		curbuf->b_visual_end = curwin->w_cursor;
7288 		curwin->w_cursor = curbuf->b_visual_start;
7289 		curbuf->b_visual_start = VIsual;
7290 	    }
7291 	    else
7292 	    {
7293 		VIsual_mode = curbuf->b_visual_mode;
7294 		curwin->w_curswant = curbuf->b_visual_curswant;
7295 		tpos = curbuf->b_visual_end;
7296 		curwin->w_cursor = curbuf->b_visual_start;
7297 	    }
7298 
7299 	    VIsual_active = TRUE;
7300 	    VIsual_reselect = TRUE;
7301 
7302 	    /* Set Visual to the start and w_cursor to the end of the Visual
7303 	     * area.  Make sure they are on an existing character. */
7304 	    check_cursor();
7305 	    VIsual = curwin->w_cursor;
7306 	    curwin->w_cursor = tpos;
7307 	    check_cursor();
7308 	    update_topline();
7309 	    /*
7310 	     * When called from normal "g" command: start Select mode when
7311 	     * 'selectmode' contains "cmd".  When called for K_SELECT, always
7312 	     * start Select mode.
7313 	     */
7314 	    if (cap->arg)
7315 		VIsual_select = TRUE;
7316 	    else
7317 		may_start_select('c');
7318 #ifdef FEAT_MOUSE
7319 	    setmouse();
7320 #endif
7321 #ifdef FEAT_CLIPBOARD
7322 	    /* Make sure the clipboard gets updated.  Needed because start and
7323 	     * end are still the same, and the selection needs to be owned */
7324 	    clip_star.vmode = NUL;
7325 #endif
7326 	    redraw_curbuf_later(INVERTED);
7327 	    showmode();
7328 	}
7329 	break;
7330     /*
7331      * "gV": Don't reselect the previous Visual area after a Select mode
7332      *	     mapping of menu.
7333      */
7334     case 'V':
7335 	VIsual_reselect = FALSE;
7336 	break;
7337 
7338     /*
7339      * "gh":  start Select mode.
7340      * "gH":  start Select line mode.
7341      * "g^H": start Select block mode.
7342      */
7343     case K_BS:
7344 	cap->nchar = Ctrl_H;
7345 	/* FALLTHROUGH */
7346     case 'h':
7347     case 'H':
7348     case Ctrl_H:
7349 # ifdef EBCDIC
7350 	/* EBCDIC: 'v'-'h' != '^v'-'^h' */
7351 	if (cap->nchar == Ctrl_H)
7352 	    cap->cmdchar = Ctrl_V;
7353 	else
7354 # endif
7355 	cap->cmdchar = cap->nchar + ('v' - 'h');
7356 	cap->arg = TRUE;
7357 	nv_visual(cap);
7358 	break;
7359 #endif /* FEAT_VISUAL */
7360 
7361     /*
7362      * "gj" and "gk" two new funny movement keys -- up and down
7363      * movement based on *screen* line rather than *file* line.
7364      */
7365     case 'j':
7366     case K_DOWN:
7367 	/* with 'nowrap' it works just like the normal "j" command; also when
7368 	 * in a closed fold */
7369 	if (!curwin->w_p_wrap
7370 #ifdef FEAT_FOLDING
7371 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7372 #endif
7373 		)
7374 	{
7375 	    oap->motion_type = MLINE;
7376 	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
7377 	}
7378 	else
7379 	    i = nv_screengo(oap, FORWARD, cap->count1);
7380 	if (i == FAIL)
7381 	    clearopbeep(oap);
7382 	break;
7383 
7384     case 'k':
7385     case K_UP:
7386 	/* with 'nowrap' it works just like the normal "k" command; also when
7387 	 * in a closed fold */
7388 	if (!curwin->w_p_wrap
7389 #ifdef FEAT_FOLDING
7390 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
7391 #endif
7392 	   )
7393 	{
7394 	    oap->motion_type = MLINE;
7395 	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
7396 	}
7397 	else
7398 	    i = nv_screengo(oap, BACKWARD, cap->count1);
7399 	if (i == FAIL)
7400 	    clearopbeep(oap);
7401 	break;
7402 
7403     /*
7404      * "gJ": join two lines without inserting a space.
7405      */
7406     case 'J':
7407 	nv_join(cap);
7408 	break;
7409 
7410     /*
7411      * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
7412      * "gm": middle of "g0" and "g$".
7413      */
7414     case '^':
7415 	flag = TRUE;
7416 	/* FALLTHROUGH */
7417 
7418     case '0':
7419     case 'm':
7420     case K_HOME:
7421     case K_KHOME:
7422 	oap->motion_type = MCHAR;
7423 	oap->inclusive = FALSE;
7424 	if (curwin->w_p_wrap
7425 #ifdef FEAT_VERTSPLIT
7426 		&& curwin->w_width != 0
7427 #endif
7428 		)
7429 	{
7430 	    int		width1 = W_WIDTH(curwin) - curwin_col_off();
7431 	    int		width2 = width1 + curwin_col_off2();
7432 
7433 	    validate_virtcol();
7434 	    i = 0;
7435 	    if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
7436 		i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
7437 	}
7438 	else
7439 	    i = curwin->w_leftcol;
7440 	/* Go to the middle of the screen line.  When 'number' is on and lines
7441 	 * are wrapping the middle can be more to the left.*/
7442 	if (cap->nchar == 'm')
7443 	    i += (W_WIDTH(curwin) - curwin_col_off()
7444 		    + ((curwin->w_p_wrap && i > 0)
7445 			? curwin_col_off2() : 0)) / 2;
7446 	coladvance((colnr_T)i);
7447 	if (flag)
7448 	{
7449 	    do
7450 		i = gchar_cursor();
7451 	    while (vim_iswhite(i) && oneright() == OK);
7452 	}
7453 	curwin->w_set_curswant = TRUE;
7454 	break;
7455 
7456     case '_':
7457 	/* "g_": to the last non-blank character in the line or <count> lines
7458 	 * downward. */
7459 	cap->oap->motion_type = MCHAR;
7460 	cap->oap->inclusive = TRUE;
7461 	curwin->w_curswant = MAXCOL;
7462 	if (cursor_down((long)(cap->count1 - 1),
7463 					 cap->oap->op_type == OP_NOP) == FAIL)
7464 	    clearopbeep(cap->oap);
7465 	else
7466 	{
7467 	    char_u  *ptr = ml_get_curline();
7468 
7469 	    /* In Visual mode we may end up after the line. */
7470 	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
7471 		--curwin->w_cursor.col;
7472 
7473 	    /* Decrease the cursor column until it's on a non-blank. */
7474 	    while (curwin->w_cursor.col > 0
7475 				    && vim_iswhite(ptr[curwin->w_cursor.col]))
7476 		--curwin->w_cursor.col;
7477 	    curwin->w_set_curswant = TRUE;
7478 	}
7479 	break;
7480 
7481     case '$':
7482     case K_END:
7483     case K_KEND:
7484 	{
7485 	    int col_off = curwin_col_off();
7486 
7487 	    oap->motion_type = MCHAR;
7488 	    oap->inclusive = TRUE;
7489 	    if (curwin->w_p_wrap
7490 #ifdef FEAT_VERTSPLIT
7491 		    && curwin->w_width != 0
7492 #endif
7493 	       )
7494 	    {
7495 		curwin->w_curswant = MAXCOL;    /* so we stay at the end */
7496 		if (cap->count1 == 1)
7497 		{
7498 		    int		width1 = W_WIDTH(curwin) - col_off;
7499 		    int		width2 = width1 + curwin_col_off2();
7500 
7501 		    validate_virtcol();
7502 		    i = width1 - 1;
7503 		    if (curwin->w_virtcol >= (colnr_T)width1)
7504 			i += ((curwin->w_virtcol - width1) / width2 + 1)
7505 								     * width2;
7506 		    coladvance((colnr_T)i);
7507 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
7508 		    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
7509 		    {
7510 			/*
7511 			 * Check for landing on a character that got split at
7512 			 * the end of the line.  We do not want to advance to
7513 			 * the next screen line.
7514 			 */
7515 			validate_virtcol();
7516 			if (curwin->w_virtcol > (colnr_T)i)
7517 			    --curwin->w_cursor.col;
7518 		    }
7519 #endif
7520 		}
7521 		else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
7522 		    clearopbeep(oap);
7523 	    }
7524 	    else
7525 	    {
7526 		i = curwin->w_leftcol + W_WIDTH(curwin) - col_off - 1;
7527 		coladvance((colnr_T)i);
7528 
7529 		/* Make sure we stick in this column. */
7530 		validate_virtcol();
7531 		curwin->w_curswant = curwin->w_virtcol;
7532 		curwin->w_set_curswant = FALSE;
7533 	    }
7534 	}
7535 	break;
7536 
7537     /*
7538      * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
7539      */
7540     case '*':
7541     case '#':
7542 #if POUND != '#'
7543     case POUND:		/* pound sign (sometimes equal to '#') */
7544 #endif
7545     case Ctrl_RSB:		/* :tag or :tselect for current identifier */
7546     case ']':			/* :tselect for current identifier */
7547 	nv_ident(cap);
7548 	break;
7549 
7550     /*
7551      * ge and gE: go back to end of word
7552      */
7553     case 'e':
7554     case 'E':
7555 	oap->motion_type = MCHAR;
7556 	curwin->w_set_curswant = TRUE;
7557 	oap->inclusive = TRUE;
7558 	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
7559 	    clearopbeep(oap);
7560 	break;
7561 
7562     /*
7563      * "g CTRL-G": display info about cursor position
7564      */
7565     case Ctrl_G:
7566 	cursor_pos_info();
7567 	break;
7568 
7569     /*
7570      * "gi": start Insert at the last position.
7571      */
7572     case 'i':
7573 	if (curbuf->b_last_insert.lnum != 0)
7574 	{
7575 	    curwin->w_cursor = curbuf->b_last_insert;
7576 	    check_cursor_lnum();
7577 	    i = (int)STRLEN(ml_get_curline());
7578 	    if (curwin->w_cursor.col > (colnr_T)i)
7579 	    {
7580 #ifdef FEAT_VIRTUALEDIT
7581 		if (virtual_active())
7582 		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
7583 #endif
7584 		curwin->w_cursor.col = i;
7585 	    }
7586 	}
7587 	cap->cmdchar = 'i';
7588 	nv_edit(cap);
7589 	break;
7590 
7591     /*
7592      * "gI": Start insert in column 1.
7593      */
7594     case 'I':
7595 	beginline(0);
7596 	if (!checkclearopq(oap))
7597 	    invoke_edit(cap, FALSE, 'g', FALSE);
7598 	break;
7599 
7600 #ifdef FEAT_SEARCHPATH
7601     /*
7602      * "gf": goto file, edit file under cursor
7603      * "]f" and "[f": can also be used.
7604      */
7605     case 'f':
7606 	nv_gotofile(cap);
7607 	break;
7608 #endif
7609 
7610 	/* "g'm" and "g`m": jump to mark without setting pcmark */
7611     case '\'':
7612 	cap->arg = TRUE;
7613 	/*FALLTHROUGH*/
7614     case '`':
7615 	nv_gomark(cap);
7616 	break;
7617 
7618     /*
7619      * "gs": Goto sleep.
7620      */
7621     case 's':
7622 	do_sleep(cap->count1 * 1000L);
7623 	break;
7624 
7625     /*
7626      * "ga": Display the ascii value of the character under the
7627      * cursor.	It is displayed in decimal, hex, and octal. -- webb
7628      */
7629     case 'a':
7630 	do_ascii(NULL);
7631 	break;
7632 
7633 #ifdef FEAT_MBYTE
7634     /*
7635      * "g8": Display the bytes used for the UTF-8 character under the
7636      * cursor.	It is displayed in hex.
7637      */
7638     case '8':
7639 	show_utf8();
7640 	break;
7641 #endif
7642 
7643     case '<':
7644 	show_sb_text();
7645 	break;
7646 
7647     /*
7648      * "gg": Goto the first line in file.  With a count it goes to
7649      * that line number like for "G". -- webb
7650      */
7651     case 'g':
7652 	cap->arg = FALSE;
7653 	nv_goto(cap);
7654 	break;
7655 
7656     /*
7657      *	 Two-character operators:
7658      *	 "gq"	    Format text
7659      *	 "gw"	    Format text and keep cursor position
7660      *	 "g~"	    Toggle the case of the text.
7661      *	 "gu"	    Change text to lower case.
7662      *	 "gU"	    Change text to upper case.
7663      *   "g?"	    rot13 encoding
7664      */
7665     case 'q':
7666     case 'w':
7667 	oap->cursor_start = curwin->w_cursor;
7668 	/*FALLTHROUGH*/
7669     case '~':
7670     case 'u':
7671     case 'U':
7672     case '?':
7673 	nv_operator(cap);
7674 	break;
7675 
7676     /*
7677      * "gd": Find first occurence of pattern under the cursor in the
7678      *	 current function
7679      * "gD": idem, but in the current file.
7680      */
7681     case 'd':
7682     case 'D':
7683 	nv_gd(oap, cap->nchar, (int)cap->count0);
7684 	break;
7685 
7686 #ifdef FEAT_MOUSE
7687     /*
7688      * g<*Mouse> : <C-*mouse>
7689      */
7690     case K_MIDDLEMOUSE:
7691     case K_MIDDLEDRAG:
7692     case K_MIDDLERELEASE:
7693     case K_LEFTMOUSE:
7694     case K_LEFTDRAG:
7695     case K_LEFTRELEASE:
7696     case K_RIGHTMOUSE:
7697     case K_RIGHTDRAG:
7698     case K_RIGHTRELEASE:
7699     case K_X1MOUSE:
7700     case K_X1DRAG:
7701     case K_X1RELEASE:
7702     case K_X2MOUSE:
7703     case K_X2DRAG:
7704     case K_X2RELEASE:
7705 	mod_mask = MOD_MASK_CTRL;
7706 	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
7707 	break;
7708 #endif
7709 
7710     case K_IGNORE:
7711 	break;
7712 
7713     /*
7714      * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
7715      */
7716     case 'p':
7717     case 'P':
7718 	nv_put(cap);
7719 	break;
7720 
7721 #ifdef FEAT_BYTEOFF
7722     /* "go": goto byte count from start of buffer */
7723     case 'o':
7724 	goto_byte(cap->count0);
7725 	break;
7726 #endif
7727 
7728     /* "gQ": improved Ex mode */
7729     case 'Q':
7730 #ifdef FEAT_CMDWIN
7731 	if (cmdwin_type != 0)
7732 	{
7733 	    clearopbeep(cap->oap);
7734 	    break;
7735 	}
7736 #endif
7737 	if (!checkclearopq(oap))
7738 	    do_exmode(TRUE);
7739 	break;
7740 
7741 #ifdef FEAT_JUMPLIST
7742     case ',':
7743 	nv_pcmark(cap);
7744 	break;
7745 
7746     case ';':
7747 	cap->count1 = -cap->count1;
7748 	nv_pcmark(cap);
7749 	break;
7750 #endif
7751 
7752     default:
7753 	clearopbeep(oap);
7754 	break;
7755     }
7756 }
7757 
7758 /*
7759  * Handle "o" and "O" commands.
7760  */
7761     static void
7762 n_opencmd(cap)
7763     cmdarg_T	*cap;
7764 {
7765     if (!checkclearopq(cap->oap))
7766     {
7767 #ifdef FEAT_FOLDING
7768 	if (cap->cmdchar == 'O')
7769 	    /* Open above the first line of a folded sequence of lines */
7770 	    (void)hasFolding(curwin->w_cursor.lnum,
7771 						&curwin->w_cursor.lnum, NULL);
7772 	else
7773 	    /* Open below the last line of a folded sequence of lines */
7774 	    (void)hasFolding(curwin->w_cursor.lnum,
7775 						NULL, &curwin->w_cursor.lnum);
7776 #endif
7777 	if (u_save((linenr_T)(curwin->w_cursor.lnum -
7778 					       (cap->cmdchar == 'O' ? 1 : 0)),
7779 		   (linenr_T)(curwin->w_cursor.lnum +
7780 					       (cap->cmdchar == 'o' ? 1 : 0))
7781 		       ) == OK
7782 		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
7783 #ifdef FEAT_COMMENTS
7784 		    has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM :
7785 #endif
7786 		    0, 0))
7787 	{
7788 	    /* When '#' is in 'cpoptions' ignore the count. */
7789 	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
7790 		cap->count1 = 1;
7791 	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
7792 	}
7793     }
7794 }
7795 
7796 /*
7797  * "." command: redo last change.
7798  */
7799     static void
7800 nv_dot(cap)
7801     cmdarg_T	*cap;
7802 {
7803     if (!checkclearopq(cap->oap))
7804     {
7805 	/*
7806 	 * If "restart_edit" is TRUE, the last but one command is repeated
7807 	 * instead of the last command (inserting text). This is used for
7808 	 * CTRL-O <.> in insert mode.
7809 	 */
7810 	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
7811 	    clearopbeep(cap->oap);
7812     }
7813 }
7814 
7815 /*
7816  * CTRL-R: undo undo
7817  */
7818     static void
7819 nv_redo(cap)
7820     cmdarg_T	*cap;
7821 {
7822     if (!checkclearopq(cap->oap))
7823     {
7824 	u_redo((int)cap->count1);
7825 	curwin->w_set_curswant = TRUE;
7826     }
7827 }
7828 
7829 /*
7830  * Handle "U" command.
7831  */
7832     static void
7833 nv_Undo(cap)
7834     cmdarg_T	*cap;
7835 {
7836     /* In Visual mode and typing "gUU" triggers an operator */
7837     if (cap->oap->op_type == OP_UPPER
7838 #ifdef FEAT_VISUAL
7839 	    || VIsual_active
7840 #endif
7841 	    )
7842     {
7843 	/* translate "gUU" to "gUgU" */
7844 	cap->cmdchar = 'g';
7845 	cap->nchar = 'U';
7846 	nv_operator(cap);
7847     }
7848     else if (!checkclearopq(cap->oap))
7849     {
7850 	u_undoline();
7851 	curwin->w_set_curswant = TRUE;
7852     }
7853 }
7854 
7855 /*
7856  * '~' command: If tilde is not an operator and Visual is off: swap case of a
7857  * single character.
7858  */
7859     static void
7860 nv_tilde(cap)
7861     cmdarg_T	*cap;
7862 {
7863     if (!p_to
7864 #ifdef FEAT_VISUAL
7865 	    && !VIsual_active
7866 #endif
7867 	    && cap->oap->op_type != OP_TILDE)
7868 	n_swapchar(cap);
7869     else
7870 	nv_operator(cap);
7871 }
7872 
7873 /*
7874  * Handle an operator command.
7875  * The actual work is done by do_pending_operator().
7876  */
7877     static void
7878 nv_operator(cap)
7879     cmdarg_T	*cap;
7880 {
7881     int	    op_type;
7882 
7883     op_type = get_op_type(cap->cmdchar, cap->nchar);
7884 
7885     if (op_type == cap->oap->op_type)	    /* double operator works on lines */
7886 	nv_lineop(cap);
7887     else if (!checkclearop(cap->oap))
7888     {
7889 	cap->oap->start = curwin->w_cursor;
7890 	cap->oap->op_type = op_type;
7891     }
7892 }
7893 
7894 /*
7895  * Handle linewise operator "dd", "yy", etc.
7896  *
7897  * "_" is is a strange motion command that helps make operators more logical.
7898  * It is actually implemented, but not documented in the real Vi.  This motion
7899  * command actually refers to "the current line".  Commands like "dd" and "yy"
7900  * are really an alternate form of "d_" and "y_".  It does accept a count, so
7901  * "d3_" works to delete 3 lines.
7902  */
7903     static void
7904 nv_lineop(cap)
7905     cmdarg_T	*cap;
7906 {
7907     cap->oap->motion_type = MLINE;
7908     if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
7909 	clearopbeep(cap->oap);
7910     else if (  cap->oap->op_type == OP_DELETE
7911 	    || cap->oap->op_type == OP_LSHIFT
7912 	    || cap->oap->op_type == OP_RSHIFT)
7913 	beginline(BL_SOL | BL_FIX);
7914     else if (cap->oap->op_type != OP_YANK)	/* 'Y' does not move cursor */
7915 	beginline(BL_WHITE | BL_FIX);
7916 }
7917 
7918 /*
7919  * <Home> command.
7920  */
7921     static void
7922 nv_home(cap)
7923     cmdarg_T	*cap;
7924 {
7925     /* CTRL-HOME is like "gg" */
7926     if (mod_mask & MOD_MASK_CTRL)
7927 	nv_goto(cap);
7928     else
7929     {
7930 	cap->count0 = 1;
7931 	nv_pipe(cap);
7932     }
7933     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
7934 			       one-character line). */
7935 }
7936 
7937 /*
7938  * "|" command.
7939  */
7940     static void
7941 nv_pipe(cap)
7942     cmdarg_T *cap;
7943 {
7944     cap->oap->motion_type = MCHAR;
7945     cap->oap->inclusive = FALSE;
7946     beginline(0);
7947     if (cap->count0 > 0)
7948     {
7949 	coladvance((colnr_T)(cap->count0 - 1));
7950 	curwin->w_curswant = (colnr_T)(cap->count0 - 1);
7951     }
7952     else
7953 	curwin->w_curswant = 0;
7954     /* keep curswant at the column where we wanted to go, not where
7955        we ended; differs if line is too short */
7956     curwin->w_set_curswant = FALSE;
7957 }
7958 
7959 /*
7960  * Handle back-word command "b" and "B".
7961  * cap->arg is 1 for "B"
7962  */
7963     static void
7964 nv_bck_word(cap)
7965     cmdarg_T	*cap;
7966 {
7967     cap->oap->motion_type = MCHAR;
7968     cap->oap->inclusive = FALSE;
7969     curwin->w_set_curswant = TRUE;
7970     if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
7971 	clearopbeep(cap->oap);
7972 #ifdef FEAT_FOLDING
7973     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
7974 	foldOpenCursor();
7975 #endif
7976 }
7977 
7978 /*
7979  * Handle word motion commands "e", "E", "w" and "W".
7980  * cap->arg is TRUE for "E" and "W".
7981  */
7982     static void
7983 nv_wordcmd(cap)
7984     cmdarg_T	*cap;
7985 {
7986     int		n;
7987     int		word_end;
7988     int		flag = FALSE;
7989 
7990     /*
7991      * Set inclusive for the "E" and "e" command.
7992      */
7993     if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
7994 	word_end = TRUE;
7995     else
7996 	word_end = FALSE;
7997     cap->oap->inclusive = word_end;
7998 
7999     /*
8000      * "cw" and "cW" are a special case.
8001      */
8002     if (!word_end && cap->oap->op_type == OP_CHANGE)
8003     {
8004 	n = gchar_cursor();
8005 	if (n != NUL)			/* not an empty line */
8006 	{
8007 	    if (vim_iswhite(n))
8008 	    {
8009 		/*
8010 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
8011 		 * changes one character, not all blanks until the start of
8012 		 * the next word.  Only do this when the 'w' flag is included
8013 		 * in 'cpoptions'.
8014 		 */
8015 		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
8016 		{
8017 		    cap->oap->inclusive = TRUE;
8018 		    cap->oap->motion_type = MCHAR;
8019 		    return;
8020 		}
8021 	    }
8022 	    else
8023 	    {
8024 		/*
8025 		 * This is a little strange. To match what the real Vi does,
8026 		 * we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
8027 		 * that we are not on a space or a TAB.  This seems impolite
8028 		 * at first, but it's really more what we mean when we say
8029 		 * 'cw'.
8030 		 * Another strangeness: When standing on the end of a word
8031 		 * "ce" will change until the end of the next wordt, but "cw"
8032 		 * will change only one character! This is done by setting
8033 		 * flag.
8034 		 */
8035 		cap->oap->inclusive = TRUE;
8036 		word_end = TRUE;
8037 		flag = TRUE;
8038 	    }
8039 	}
8040     }
8041 
8042     cap->oap->motion_type = MCHAR;
8043     curwin->w_set_curswant = TRUE;
8044     if (word_end)
8045 	n = end_word(cap->count1, cap->arg, flag, FALSE);
8046     else
8047 	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
8048 
8049     /* Don't leave the cursor on the NUL past a line */
8050     if (curwin->w_cursor.col && gchar_cursor() == NUL)
8051     {
8052 	--curwin->w_cursor.col;
8053 	cap->oap->inclusive = TRUE;
8054     }
8055 
8056     if (n == FAIL && cap->oap->op_type == OP_NOP)
8057 	clearopbeep(cap->oap);
8058     else
8059     {
8060 #ifdef FEAT_VISUAL
8061 	adjust_for_sel(cap);
8062 #endif
8063 #ifdef FEAT_FOLDING
8064 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8065 	    foldOpenCursor();
8066 #endif
8067     }
8068 }
8069 
8070 /*
8071  * "0" and "^" commands.
8072  * cap->arg is the argument for beginline().
8073  */
8074     static void
8075 nv_beginline(cap)
8076     cmdarg_T	*cap;
8077 {
8078     cap->oap->motion_type = MCHAR;
8079     cap->oap->inclusive = FALSE;
8080     beginline(cap->arg);
8081 #ifdef FEAT_FOLDING
8082     if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8083 	foldOpenCursor();
8084 #endif
8085 }
8086 
8087 #ifdef FEAT_VISUAL
8088 /*
8089  * In exclusive Visual mode, may include the last character.
8090  */
8091     static void
8092 adjust_for_sel(cap)
8093     cmdarg_T	*cap;
8094 {
8095     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
8096 	    && gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor))
8097     {
8098 # ifdef FEAT_MBYTE
8099 	if (has_mbyte)
8100 	    inc_cursor();
8101 	else
8102 # endif
8103 	    ++curwin->w_cursor.col;
8104 	cap->oap->inclusive = FALSE;
8105     }
8106 }
8107 
8108 /*
8109  * Exclude last character at end of Visual area for 'selection' == "exclusive".
8110  * Should check VIsual_mode before calling this.
8111  * Returns TRUE when backed up to the previous line.
8112  */
8113     static int
8114 unadjust_for_sel()
8115 {
8116     pos_T	*pp;
8117 
8118     if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor))
8119     {
8120 	if (lt(VIsual, curwin->w_cursor))
8121 	    pp = &curwin->w_cursor;
8122 	else
8123 	    pp = &VIsual;
8124 #ifdef FEAT_VIRTUALEDIT
8125 	if (pp->coladd > 0)
8126 	    --pp->coladd;
8127 	else
8128 #endif
8129 	if (pp->col > 0)
8130 	{
8131 	    --pp->col;
8132 #ifdef FEAT_MBYTE
8133 	    mb_adjustpos(pp);
8134 #endif
8135 	}
8136 	else if (pp->lnum > 1)
8137 	{
8138 	    --pp->lnum;
8139 	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
8140 	    return TRUE;
8141 	}
8142     }
8143     return FALSE;
8144 }
8145 
8146 /*
8147  * SELECT key in Normal or Visual mode: end of Select mode mapping.
8148  */
8149     static void
8150 nv_select(cap)
8151     cmdarg_T	*cap;
8152 {
8153     if (VIsual_active)
8154 	VIsual_select = TRUE;
8155     else if (VIsual_reselect)
8156     {
8157 	cap->nchar = 'v';	    /* fake "gv" command */
8158 	cap->arg = TRUE;
8159 	nv_g_cmd(cap);
8160     }
8161 }
8162 
8163 #endif
8164 
8165 /*
8166  * "G", "gg", CTRL-END, CTRL-HOME.
8167  * cap->arg is TRUE for "G".
8168  */
8169     static void
8170 nv_goto(cap)
8171     cmdarg_T	*cap;
8172 {
8173     linenr_T	lnum;
8174 
8175     if (cap->arg)
8176 	lnum = curbuf->b_ml.ml_line_count;
8177     else
8178 	lnum = 1L;
8179     cap->oap->motion_type = MLINE;
8180     setpcmark();
8181 
8182     /* When a count is given, use it instead of the default lnum */
8183     if (cap->count0 != 0)
8184 	lnum = cap->count0;
8185     if (lnum < 1L)
8186 	lnum = 1L;
8187     else if (lnum > curbuf->b_ml.ml_line_count)
8188 	lnum = curbuf->b_ml.ml_line_count;
8189     curwin->w_cursor.lnum = lnum;
8190     beginline(BL_SOL | BL_FIX);
8191 #ifdef FEAT_FOLDING
8192     if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP)
8193 	foldOpenCursor();
8194 #endif
8195 }
8196 
8197 /*
8198  * CTRL-\ in Normal mode.
8199  */
8200     static void
8201 nv_normal(cap)
8202     cmdarg_T	*cap;
8203 {
8204     if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G)
8205     {
8206 	clearop(cap->oap);
8207 	if (restart_edit != 0 && p_smd)
8208 	    clear_cmdline = TRUE;		/* unshow mode later */
8209 	restart_edit = 0;
8210 #ifdef FEAT_CMDWIN
8211 	if (cmdwin_type != 0)
8212 	    cmdwin_result = Ctrl_C;
8213 #endif
8214 #ifdef FEAT_VISUAL
8215 	if (VIsual_active)
8216 	{
8217 	    end_visual_mode();		/* stop Visual */
8218 	    redraw_curbuf_later(INVERTED);
8219 	}
8220 #endif
8221 	/* CTRL-\ CTRL-G restarts Insert mode when 'insertmode' is set. */
8222 	if (cap->nchar == Ctrl_G && p_im)
8223 	    restart_edit = 'a';
8224     }
8225     else
8226 	clearopbeep(cap->oap);
8227 }
8228 
8229 /*
8230  * ESC in Normal mode: beep, but don't flush buffers.
8231  * Don't even beep if we are canceling a command.
8232  */
8233     static void
8234 nv_esc(cap)
8235     cmdarg_T	*cap;
8236 {
8237     int		no_reason;
8238 
8239     no_reason = (cap->oap->op_type == OP_NOP
8240 		&& cap->opcount == 0
8241 		&& cap->count0 == 0
8242 		&& cap->oap->regname == 0
8243 		&& !p_im);
8244 
8245     if (cap->arg)		/* TRUE for CTRL-C */
8246     {
8247 	if (restart_edit == 0
8248 #ifdef FEAT_CMDWIN
8249 		&& cmdwin_type == 0
8250 #endif
8251 #ifdef FEAT_VISUAL
8252 		&& !VIsual_active
8253 #endif
8254 		&& no_reason)
8255 	    MSG(_("Type  :quit<Enter>  to exit Vim"));
8256 
8257 	/* Don't reset "restart_edit" when 'insertmode' is set, it won't be
8258 	 * set again below when halfway a mapping. */
8259 	if (!p_im)
8260 	    restart_edit = 0;
8261 #ifdef FEAT_CMDWIN
8262 	if (cmdwin_type != 0)
8263 	{
8264 	    cmdwin_result = K_IGNORE;
8265 	    got_int = FALSE;	/* don't stop executing autocommands et al. */
8266 	    return;
8267 	}
8268 #endif
8269     }
8270 
8271 #ifdef FEAT_VISUAL
8272     if (VIsual_active)
8273     {
8274 	end_visual_mode();	/* stop Visual */
8275 	check_cursor_col();	/* make sure cursor is not beyond EOL */
8276 	curwin->w_set_curswant = TRUE;
8277 	redraw_curbuf_later(INVERTED);
8278     }
8279     else
8280 #endif
8281 	if (no_reason)
8282 	    vim_beep();
8283     clearop(cap->oap);
8284 
8285     /* A CTRL-C is often used at the start of a menu.  When 'insertmode' is
8286      * set return to Insert mode afterwards. */
8287     if (restart_edit == 0 && goto_im()
8288 #ifdef FEAT_EX_EXTRA
8289 	    && ex_normal_busy == 0
8290 #endif
8291 	    )
8292 	restart_edit = 'a';
8293 }
8294 
8295 /*
8296  * Handle "A", "a", "I", "i" and <Insert> commands.
8297  */
8298     static void
8299 nv_edit(cap)
8300     cmdarg_T *cap;
8301 {
8302     /* <Insert> is equal to "i" */
8303     if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
8304 	cap->cmdchar = 'i';
8305 
8306 #ifdef FEAT_VISUAL
8307     /* in Visual mode "A" and "I" are an operator */
8308     if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
8309 	v_visop(cap);
8310 
8311     /* in Visual mode and after an operator "a" and "i" are for text objects */
8312     else
8313 #endif
8314 	if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
8315 	    && (cap->oap->op_type != OP_NOP
8316 #ifdef FEAT_VISUAL
8317 		|| VIsual_active
8318 #endif
8319 		))
8320     {
8321 #ifdef FEAT_TEXTOBJ
8322 	nv_object(cap);
8323 #else
8324 	clearopbeep(cap->oap);
8325 #endif
8326     }
8327     else if (!curbuf->b_p_ma && !p_im)
8328     {
8329 	/* Only give this error when 'insertmode' is off. */
8330 	EMSG(_(e_modifiable));
8331 	clearop(cap->oap);
8332     }
8333     else if (!checkclearopq(cap->oap))
8334     {
8335 	switch (cap->cmdchar)
8336 	{
8337 	    case 'A':	/* "A"ppend after the line */
8338 		curwin->w_set_curswant = TRUE;
8339 #ifdef FEAT_VIRTUALEDIT
8340 		if (ve_flags == VE_ALL)
8341 		{
8342 		    int save_State = State;
8343 
8344 		    /* Pretent Insert mode here to allow the cursor on the
8345 		     * character past the end of the line */
8346 		    State = INSERT;
8347 		    coladvance((colnr_T)MAXCOL);
8348 		    State = save_State;
8349 		}
8350 		else
8351 #endif
8352 		    curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
8353 		break;
8354 
8355 	    case 'I':	/* "I"nsert before the first non-blank */
8356 		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
8357 		    beginline(BL_WHITE);
8358 		else
8359 		    beginline(BL_WHITE|BL_FIX);
8360 		break;
8361 
8362 	    case 'a':	/* "a"ppend is like "i"nsert on the next character. */
8363 #ifdef FEAT_VIRTUALEDIT
8364 		/* increment coladd when in virtual space, increment the
8365 		 * column otherwise, also to append after an unprintable char */
8366 		if (virtual_active()
8367 			&& (curwin->w_cursor.coladd > 0
8368 			    || *ml_get_cursor() == NUL
8369 			    || *ml_get_cursor() == TAB))
8370 		    curwin->w_cursor.coladd++;
8371 		else
8372 #endif
8373 		if (*ml_get_cursor() != NUL)
8374 		    inc_cursor();
8375 		break;
8376 	}
8377 
8378 #ifdef FEAT_VIRTUALEDIT
8379 	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
8380 	{
8381 	    int save_State = State;
8382 
8383 	    /* Pretent Insert mode here to allow the cursor on the
8384 	     * character past the end of the line */
8385 	    State = INSERT;
8386 	    coladvance(getviscol());
8387 	    State = save_State;
8388 	}
8389 #endif
8390 
8391 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
8392     }
8393 }
8394 
8395 /*
8396  * Invoke edit() and take care of "restart_edit" and the return value.
8397  */
8398     static void
8399 invoke_edit(cap, repl, cmd, startln)
8400     cmdarg_T	*cap;
8401     int		repl;		/* "r" or "gr" command */
8402     int		cmd;
8403     int		startln;
8404 {
8405     int		restart_edit_save = 0;
8406 
8407     /* Complicated: When the user types "a<C-O>a" we don't want to do Insert
8408      * mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
8409      * it. */
8410     if (repl || !stuff_empty())
8411 	restart_edit_save = restart_edit;
8412     else
8413 	restart_edit_save = 0;
8414 
8415     /* Always reset "restart_edit", this is not a restarted edit. */
8416     restart_edit = 0;
8417 
8418     if (edit(cmd, startln, cap->count1))
8419 	cap->retval |= CA_COMMAND_BUSY;
8420 
8421     if (restart_edit == 0)
8422 	restart_edit = restart_edit_save;
8423 }
8424 
8425 #ifdef FEAT_TEXTOBJ
8426 /*
8427  * "a" or "i" while an operator is pending or in Visual mode: object motion.
8428  */
8429     static void
8430 nv_object(cap)
8431     cmdarg_T	*cap;
8432 {
8433     int		flag;
8434     int		include;
8435     char_u	*mps_save;
8436 
8437     if (cap->cmdchar == 'i')
8438 	include = FALSE;    /* "ix" = inner object: exclude white space */
8439     else
8440 	include = TRUE;	    /* "ax" = an object: include white space */
8441 
8442     /* Make sure (), [], {} and <> are in 'matchpairs' */
8443     mps_save = curbuf->b_p_mps;
8444     curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";
8445 
8446     switch (cap->nchar)
8447     {
8448 	case 'w': /* "aw" = a word */
8449 		flag = current_word(cap->oap, cap->count1, include, FALSE);
8450 		break;
8451 	case 'W': /* "aW" = a WORD */
8452 		flag = current_word(cap->oap, cap->count1, include, TRUE);
8453 		break;
8454 	case 'b': /* "ab" = a braces block */
8455 	case '(':
8456 	case ')':
8457 		flag = current_block(cap->oap, cap->count1, include, '(', ')');
8458 		break;
8459 	case 'B': /* "aB" = a Brackets block */
8460 	case '{':
8461 	case '}':
8462 		flag = current_block(cap->oap, cap->count1, include, '{', '}');
8463 		break;
8464 	case '[': /* "a[" = a [] block */
8465 	case ']':
8466 		flag = current_block(cap->oap, cap->count1, include, '[', ']');
8467 		break;
8468 	case '<': /* "a<" = a <> block */
8469 	case '>':
8470 		flag = current_block(cap->oap, cap->count1, include, '<', '>');
8471 		break;
8472 	case 't': /* "at" = a tag block (xml and html) */
8473 		flag = current_tagblock(cap->oap, cap->count1, include);
8474 		break;
8475 	case 'p': /* "ap" = a paragraph */
8476 		flag = current_par(cap->oap, cap->count1, include, 'p');
8477 		break;
8478 	case 's': /* "as" = a sentence */
8479 		flag = current_sent(cap->oap, cap->count1, include);
8480 		break;
8481 	case '"': /* "a"" = a double quoted string */
8482 	case '\'': /* "a'" = a single quoted string */
8483 	case '`': /* "a`" = a backtick quoted string */
8484 		flag = current_quote(cap->oap, cap->count1, include,
8485 								  cap->nchar);
8486 		break;
8487 #if 0	/* TODO */
8488 	case 'S': /* "aS" = a section */
8489 	case 'f': /* "af" = a filename */
8490 	case 'u': /* "au" = a URL */
8491 #endif
8492 	default:
8493 		flag = FAIL;
8494 		break;
8495     }
8496 
8497     curbuf->b_p_mps = mps_save;
8498     if (flag == FAIL)
8499 	clearopbeep(cap->oap);
8500     adjust_cursor_col();
8501     curwin->w_set_curswant = TRUE;
8502 }
8503 #endif
8504 
8505 /*
8506  * "q" command: Start/stop recording.
8507  * "q:", "q/", "q?": edit command-line in command-line window.
8508  */
8509     static void
8510 nv_record(cap)
8511     cmdarg_T	*cap;
8512 {
8513     if (cap->oap->op_type == OP_FORMAT)
8514     {
8515 	/* "gqq" is the same as "gqgq": format line */
8516 	cap->cmdchar = 'g';
8517 	cap->nchar = 'q';
8518 	nv_operator(cap);
8519     }
8520     else if (!checkclearop(cap->oap))
8521     {
8522 #ifdef FEAT_CMDWIN
8523 	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
8524 	{
8525 	    stuffcharReadbuff(cap->nchar);
8526 	    stuffcharReadbuff(K_CMDWIN);
8527 	}
8528 	else
8529 #endif
8530 	    /* (stop) recording into a named register, unless executing a
8531 	     * register */
8532 	    if (!Exec_reg && do_record(cap->nchar) == FAIL)
8533 		clearopbeep(cap->oap);
8534     }
8535 }
8536 
8537 /*
8538  * Handle the "@r" command.
8539  */
8540     static void
8541 nv_at(cap)
8542     cmdarg_T	*cap;
8543 {
8544     if (checkclearop(cap->oap))
8545 	return;
8546 #ifdef FEAT_EVAL
8547     if (cap->nchar == '=')
8548     {
8549 	if (get_expr_register() == NUL)
8550 	    return;
8551     }
8552 #endif
8553     while (cap->count1-- && !got_int)
8554     {
8555 	if (do_execreg(cap->nchar, FALSE, FALSE) == FAIL)
8556 	{
8557 	    clearopbeep(cap->oap);
8558 	    break;
8559 	}
8560 	line_breakcheck();
8561     }
8562 }
8563 
8564 /*
8565  * Handle the CTRL-U and CTRL-D commands.
8566  */
8567     static void
8568 nv_halfpage(cap)
8569     cmdarg_T	*cap;
8570 {
8571     if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
8572 	    || (cap->cmdchar == Ctrl_D
8573 		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
8574 	clearopbeep(cap->oap);
8575     else if (!checkclearop(cap->oap))
8576 	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
8577 }
8578 
8579 /*
8580  * Handle "J" or "gJ" command.
8581  */
8582     static void
8583 nv_join(cap)
8584     cmdarg_T *cap;
8585 {
8586 #ifdef FEAT_VISUAL
8587     if (VIsual_active)	/* join the visual lines */
8588 	nv_operator(cap);
8589     else
8590 #endif
8591 	if (!checkclearop(cap->oap))
8592     {
8593 	if (cap->count0 <= 1)
8594 	    cap->count0 = 2;	    /* default for join is two lines! */
8595 	if (curwin->w_cursor.lnum + cap->count0 - 1 >
8596 						   curbuf->b_ml.ml_line_count)
8597 	    clearopbeep(cap->oap);  /* beyond last line */
8598 	else
8599 	{
8600 	    prep_redo(cap->oap->regname, cap->count0,
8601 			 NUL, cap->cmdchar, NUL, NUL, cap->nchar);
8602 	    do_do_join(cap->count0, cap->nchar == NUL);
8603 	}
8604     }
8605 }
8606 
8607 /*
8608  * "P", "gP", "p" and "gp" commands.
8609  */
8610     static void
8611 nv_put(cap)
8612     cmdarg_T  *cap;
8613 {
8614 #ifdef FEAT_VISUAL
8615     int		regname = 0;
8616     void	*reg1 = NULL, *reg2 = NULL;
8617     int		empty = FALSE;
8618     int		was_visual = FALSE;
8619 #endif
8620     int		dir;
8621     int		flags = 0;
8622 
8623     if (cap->oap->op_type != OP_NOP)
8624     {
8625 #ifdef FEAT_DIFF
8626 	/* "dp" is ":diffput" */
8627 	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
8628 	{
8629 	    clearop(cap->oap);
8630 	    nv_diffgetput(TRUE);
8631 	}
8632 	else
8633 #endif
8634 	clearopbeep(cap->oap);
8635     }
8636     else
8637     {
8638 	dir = (cap->cmdchar == 'P'
8639 		|| (cap->cmdchar == 'g' && cap->nchar == 'P'))
8640 							 ? BACKWARD : FORWARD;
8641 	prep_redo_cmd(cap);
8642 	if (cap->cmdchar == 'g')
8643 	    flags |= PUT_CURSEND;
8644 
8645 #ifdef FEAT_VISUAL
8646 	if (VIsual_active)
8647 	{
8648 	    /* Putting in Visual mode: The put text replaces the selected
8649 	     * text.  First delete the selected text, then put the new text.
8650 	     * Need to save and restore the registers that the delete
8651 	     * overwrites if the old contents is being put.
8652 	     */
8653 	    was_visual = TRUE;
8654 	    regname = cap->oap->regname;
8655 # ifdef FEAT_CLIPBOARD
8656 	    adjust_clip_reg(&regname);
8657 # endif
8658 	    if (regname == 0 || VIM_ISDIGIT(regname)
8659 # ifdef FEAT_CLIPBOARD
8660 		    || (clip_unnamed && (regname == '*' || regname == '+'))
8661 # endif
8662 
8663 		    )
8664 	    {
8665 		/* the delete is going to overwrite the register we want to
8666 		 * put, save it first. */
8667 		reg1 = get_register(regname, TRUE);
8668 	    }
8669 
8670 	    /* Now delete the selected text. */
8671 	    cap->cmdchar = 'd';
8672 	    cap->nchar = NUL;
8673 	    cap->oap->regname = NUL;
8674 	    nv_operator(cap);
8675 	    do_pending_operator(cap, 0, FALSE);
8676 	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
8677 
8678 	    /* delete PUT_LINE_BACKWARD; */
8679 	    cap->oap->regname = regname;
8680 
8681 	    if (reg1 != NULL)
8682 	    {
8683 		/* Delete probably changed the register we want to put, save
8684 		 * it first. Then put back what was there before the delete. */
8685 		reg2 = get_register(regname, FALSE);
8686 		put_register(regname, reg1);
8687 	    }
8688 
8689 	    /* When deleted a linewise Visual area, put the register as
8690 	     * lines to avoid it joined with the next line.  When deletion was
8691 	     * characterwise, split a line when putting lines. */
8692 	    if (VIsual_mode == 'V')
8693 		flags |= PUT_LINE;
8694 	    else if (VIsual_mode == 'v')
8695 		flags |= PUT_LINE_SPLIT;
8696 	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
8697 		flags |= PUT_LINE_FORWARD;
8698 	    dir = BACKWARD;
8699 	    if ((VIsual_mode != 'V'
8700 			&& curwin->w_cursor.col < curbuf->b_op_start.col)
8701 		    || (VIsual_mode == 'V'
8702 			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
8703 		/* cursor is at the end of the line or end of file, put
8704 		 * forward. */
8705 		dir = FORWARD;
8706 	}
8707 #endif
8708 	do_put(cap->oap->regname, dir, cap->count1, flags);
8709 
8710 #ifdef FEAT_VISUAL
8711 	/* If a register was saved, put it back now. */
8712 	if (reg2 != NULL)
8713 	    put_register(regname, reg2);
8714 
8715 	/* What to reselect with "gv"?  Selecting the just put text seems to
8716 	 * be the most useful, since the original text was removed. */
8717 	if (was_visual)
8718 	{
8719 	    curbuf->b_visual_start = curbuf->b_op_start;
8720 	    curbuf->b_visual_end = curbuf->b_op_end;
8721 	}
8722 
8723 	/* When all lines were selected and deleted do_put() leaves an empty
8724 	 * line that needs to be deleted now. */
8725 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
8726 	    ml_delete(curbuf->b_ml.ml_line_count, TRUE);
8727 #endif
8728 	auto_format(FALSE, TRUE);
8729     }
8730 }
8731 
8732 /*
8733  * "o" and "O" commands.
8734  */
8735     static void
8736 nv_open(cap)
8737     cmdarg_T	*cap;
8738 {
8739 #ifdef FEAT_DIFF
8740     /* "do" is ":diffget" */
8741     if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
8742     {
8743 	clearop(cap->oap);
8744 	nv_diffgetput(FALSE);
8745     }
8746     else
8747 #endif
8748 #ifdef FEAT_VISUAL
8749     if (VIsual_active)  /* switch start and end of visual */
8750 	v_swap_corners(cap->cmdchar);
8751     else
8752 #endif
8753 	n_opencmd(cap);
8754 }
8755 
8756 #ifdef FEAT_SNIFF
8757 /*ARGSUSED*/
8758     static void
8759 nv_sniff(cap)
8760     cmdarg_T	*cap;
8761 {
8762     ProcessSniffRequests();
8763 }
8764 #endif
8765 
8766 #ifdef FEAT_NETBEANS_INTG
8767     static void
8768 nv_nbcmd(cap)
8769     cmdarg_T	*cap;
8770 {
8771     netbeans_keycommand(cap->nchar);
8772 }
8773 #endif
8774 
8775 #ifdef FEAT_DND
8776 /*ARGSUSED*/
8777     static void
8778 nv_drop(cap)
8779     cmdarg_T	*cap;
8780 {
8781     do_put('~', BACKWARD, 1L, PUT_CURSEND);
8782 }
8783 #endif
8784 
8785 #ifdef FEAT_AUTOCMD
8786 /*
8787  * Trigger CursorHold event.
8788  * When waiting for a character for 'updatetime' K_CURSORHOLD is put in the
8789  * input buffer.  "did_cursorhold" is set to avoid retriggering.
8790  */
8791 /*ARGSUSED*/
8792     static void
8793 nv_cursorhold(cap)
8794     cmdarg_T	*cap;
8795 {
8796     apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
8797     did_cursorhold = TRUE;
8798     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
8799 }
8800 #endif
8801 
8802