xref: /vim-8.2.3635/src/normal.c (revision 43fe3290)
1 /* vi:set ts=8 sts=4 sw=4:
2  *
3  * VIM - Vi IMproved	by Bram Moolenaar
4  *
5  * Do ":help uganda"  in Vim to read copying and usage conditions.
6  * Do ":help credits" in Vim to see a list of people who contributed.
7  * See README.txt for an overview of the Vim source code.
8  */
9 /*
10  * normal.c:	Contains the main routine for processing characters in command
11  *		mode.  Communicates closely with the code in ops.c to handle
12  *		the operators.
13  */
14 
15 #include "vim.h"
16 
17 /*
18  * The Visual area is remembered for reselection.
19  */
20 static int	resel_VIsual_mode = NUL;	/* 'v', 'V', or Ctrl-V */
21 static linenr_T	resel_VIsual_line_count;	/* number of lines */
22 static colnr_T	resel_VIsual_vcol;		/* nr of cols or end col */
23 static int	VIsual_mode_orig = NUL;		/* saved Visual mode */
24 
25 static int	restart_VIsual_select = 0;
26 
27 #ifdef FEAT_EVAL
28 static void	set_vcount_ca __ARGS((cmdarg_T *cap, int *set_prevcount));
29 #endif
30 static int
31 #ifdef __BORLANDC__
32     _RTLENTRYF
33 #endif
34 		nv_compare __ARGS((const void *s1, const void *s2));
35 static int	find_command __ARGS((int cmdchar));
36 static void	op_colon __ARGS((oparg_T *oap));
37 static void	op_function __ARGS((oparg_T *oap));
38 #if defined(FEAT_MOUSE)
39 static void	find_start_of_word __ARGS((pos_T *));
40 static void	find_end_of_word __ARGS((pos_T *));
41 static int	get_mouse_class __ARGS((char_u *p));
42 #endif
43 static void	prep_redo_visual __ARGS((cmdarg_T *cap));
44 static void	prep_redo_cmd __ARGS((cmdarg_T *cap));
45 static void	prep_redo __ARGS((int regname, long, int, int, int, int, int));
46 static int	checkclearop __ARGS((oparg_T *oap));
47 static int	checkclearopq __ARGS((oparg_T *oap));
48 static void	clearop __ARGS((oparg_T *oap));
49 static void	clearopbeep __ARGS((oparg_T *oap));
50 static void	unshift_special __ARGS((cmdarg_T *cap));
51 #ifdef FEAT_CMDL_INFO
52 static void	del_from_showcmd __ARGS((int));
53 #endif
54 
55 /*
56  * nv_*(): functions called to handle Normal and Visual mode commands.
57  * n_*(): functions called to handle Normal mode commands.
58  * v_*(): functions called to handle Visual mode commands.
59  */
60 static void	nv_ignore __ARGS((cmdarg_T *cap));
61 static void	nv_nop __ARGS((cmdarg_T *cap));
62 static void	nv_error __ARGS((cmdarg_T *cap));
63 static void	nv_help __ARGS((cmdarg_T *cap));
64 static void	nv_addsub __ARGS((cmdarg_T *cap));
65 static void	nv_page __ARGS((cmdarg_T *cap));
66 static void	nv_gd __ARGS((oparg_T *oap, int nchar, int thisblock));
67 static int	nv_screengo __ARGS((oparg_T *oap, int dir, long dist));
68 #ifdef FEAT_MOUSE
69 static void	nv_mousescroll __ARGS((cmdarg_T *cap));
70 static void	nv_mouse __ARGS((cmdarg_T *cap));
71 #endif
72 static void	nv_scroll_line __ARGS((cmdarg_T *cap));
73 static void	nv_zet __ARGS((cmdarg_T *cap));
74 #ifdef FEAT_GUI
75 static void	nv_ver_scrollbar __ARGS((cmdarg_T *cap));
76 static void	nv_hor_scrollbar __ARGS((cmdarg_T *cap));
77 #endif
78 #ifdef FEAT_GUI_TABLINE
79 static void	nv_tabline __ARGS((cmdarg_T *cap));
80 static void	nv_tabmenu __ARGS((cmdarg_T *cap));
81 #endif
82 static void	nv_exmode __ARGS((cmdarg_T *cap));
83 static void	nv_colon __ARGS((cmdarg_T *cap));
84 static void	nv_ctrlg __ARGS((cmdarg_T *cap));
85 static void	nv_ctrlh __ARGS((cmdarg_T *cap));
86 static void	nv_clear __ARGS((cmdarg_T *cap));
87 static void	nv_ctrlo __ARGS((cmdarg_T *cap));
88 static void	nv_hat __ARGS((cmdarg_T *cap));
89 static void	nv_Zet __ARGS((cmdarg_T *cap));
90 static void	nv_ident __ARGS((cmdarg_T *cap));
91 static void	nv_tagpop __ARGS((cmdarg_T *cap));
92 static void	nv_scroll __ARGS((cmdarg_T *cap));
93 static void	nv_right __ARGS((cmdarg_T *cap));
94 static void	nv_left __ARGS((cmdarg_T *cap));
95 static void	nv_up __ARGS((cmdarg_T *cap));
96 static void	nv_down __ARGS((cmdarg_T *cap));
97 #ifdef FEAT_SEARCHPATH
98 static void	nv_gotofile __ARGS((cmdarg_T *cap));
99 #endif
100 static void	nv_end __ARGS((cmdarg_T *cap));
101 static void	nv_dollar __ARGS((cmdarg_T *cap));
102 static void	nv_search __ARGS((cmdarg_T *cap));
103 static void	nv_next __ARGS((cmdarg_T *cap));
104 static int	normal_search __ARGS((cmdarg_T *cap, int dir, char_u *pat, int opt));
105 static void	nv_csearch __ARGS((cmdarg_T *cap));
106 static void	nv_brackets __ARGS((cmdarg_T *cap));
107 static void	nv_percent __ARGS((cmdarg_T *cap));
108 static void	nv_brace __ARGS((cmdarg_T *cap));
109 static void	nv_mark __ARGS((cmdarg_T *cap));
110 static void	nv_findpar __ARGS((cmdarg_T *cap));
111 static void	nv_undo __ARGS((cmdarg_T *cap));
112 static void	nv_kundo __ARGS((cmdarg_T *cap));
113 static void	nv_Replace __ARGS((cmdarg_T *cap));
114 #ifdef FEAT_VREPLACE
115 static void	nv_vreplace __ARGS((cmdarg_T *cap));
116 #endif
117 static void	v_swap_corners __ARGS((int cmdchar));
118 static void	nv_replace __ARGS((cmdarg_T *cap));
119 static void	n_swapchar __ARGS((cmdarg_T *cap));
120 static void	nv_cursormark __ARGS((cmdarg_T *cap, int flag, pos_T *pos));
121 static void	v_visop __ARGS((cmdarg_T *cap));
122 static void	nv_subst __ARGS((cmdarg_T *cap));
123 static void	nv_abbrev __ARGS((cmdarg_T *cap));
124 static void	nv_optrans __ARGS((cmdarg_T *cap));
125 static void	nv_gomark __ARGS((cmdarg_T *cap));
126 static void	nv_pcmark __ARGS((cmdarg_T *cap));
127 static void	nv_regname __ARGS((cmdarg_T *cap));
128 static void	nv_visual __ARGS((cmdarg_T *cap));
129 static void	n_start_visual_mode __ARGS((int c));
130 static void	nv_window __ARGS((cmdarg_T *cap));
131 static void	nv_suspend __ARGS((cmdarg_T *cap));
132 static void	nv_g_cmd __ARGS((cmdarg_T *cap));
133 static void	n_opencmd __ARGS((cmdarg_T *cap));
134 static void	nv_dot __ARGS((cmdarg_T *cap));
135 static void	nv_redo __ARGS((cmdarg_T *cap));
136 static void	nv_Undo __ARGS((cmdarg_T *cap));
137 static void	nv_tilde __ARGS((cmdarg_T *cap));
138 static void	nv_operator __ARGS((cmdarg_T *cap));
139 #ifdef FEAT_EVAL
140 static void	set_op_var __ARGS((int optype));
141 #endif
142 static void	nv_lineop __ARGS((cmdarg_T *cap));
143 static void	nv_home __ARGS((cmdarg_T *cap));
144 static void	nv_pipe __ARGS((cmdarg_T *cap));
145 static void	nv_bck_word __ARGS((cmdarg_T *cap));
146 static void	nv_wordcmd __ARGS((cmdarg_T *cap));
147 static void	nv_beginline __ARGS((cmdarg_T *cap));
148 static void	adjust_cursor __ARGS((oparg_T *oap));
149 static void	adjust_for_sel __ARGS((cmdarg_T *cap));
150 static int	unadjust_for_sel __ARGS((void));
151 static void	nv_select __ARGS((cmdarg_T *cap));
152 static void	nv_goto __ARGS((cmdarg_T *cap));
153 static void	nv_normal __ARGS((cmdarg_T *cap));
154 static void	nv_esc __ARGS((cmdarg_T *oap));
155 static void	nv_edit __ARGS((cmdarg_T *cap));
156 static void	invoke_edit __ARGS((cmdarg_T *cap, int repl, int cmd, int startln));
157 #ifdef FEAT_TEXTOBJ
158 static void	nv_object __ARGS((cmdarg_T *cap));
159 #endif
160 static void	nv_record __ARGS((cmdarg_T *cap));
161 static void	nv_at __ARGS((cmdarg_T *cap));
162 static void	nv_halfpage __ARGS((cmdarg_T *cap));
163 static void	nv_join __ARGS((cmdarg_T *cap));
164 static void	nv_put __ARGS((cmdarg_T *cap));
165 static void	nv_open __ARGS((cmdarg_T *cap));
166 #ifdef FEAT_SNIFF
167 static void	nv_sniff __ARGS((cmdarg_T *cap));
168 #endif
169 #ifdef FEAT_NETBEANS_INTG
170 static void	nv_nbcmd __ARGS((cmdarg_T *cap));
171 #endif
172 #ifdef FEAT_DND
173 static void	nv_drop __ARGS((cmdarg_T *cap));
174 #endif
175 #ifdef FEAT_AUTOCMD
176 static void	nv_cursorhold __ARGS((cmdarg_T *cap));
177 #endif
178 static void	get_op_vcol __ARGS((oparg_T *oap, colnr_T col, int initial));
179 
180 static char *e_noident = N_("E349: No identifier under cursor");
181 
182 /*
183  * Function to be called for a Normal or Visual mode command.
184  * The argument is a cmdarg_T.
185  */
186 typedef void (*nv_func_T) __ARGS((cmdarg_T *cap));
187 
188 /* Values for cmd_flags. */
189 #define NV_NCH	    0x01	  /* may need to get a second char */
190 #define NV_NCH_NOP  (0x02|NV_NCH) /* get second char when no operator pending */
191 #define NV_NCH_ALW  (0x04|NV_NCH) /* always get a second char */
192 #define NV_LANG	    0x08	/* second char needs language adjustment */
193 
194 #define NV_SS	    0x10	/* may start selection */
195 #define NV_SSS	    0x20	/* may start selection with shift modifier */
196 #define NV_STS	    0x40	/* may stop selection without shift modif. */
197 #define NV_RL	    0x80	/* 'rightleft' modifies command */
198 #define NV_KEEPREG  0x100	/* don't clear regname */
199 #define NV_NCW	    0x200	/* not allowed in command-line window */
200 
201 /*
202  * Generally speaking, every Normal mode command should either clear any
203  * pending operator (with *clearop*()), or set the motion type variable
204  * oap->motion_type.
205  *
206  * When a cursor motion command is made, it is marked as being a character or
207  * line oriented motion.  Then, if an operator is in effect, the operation
208  * becomes character or line oriented accordingly.
209  */
210 
211 /*
212  * This table contains one entry for every Normal or Visual mode command.
213  * The order doesn't matter, init_normal_cmds() will create a sorted index.
214  * It is faster when all keys from zero to '~' are present.
215  */
216 static const struct nv_cmd
217 {
218     int		cmd_char;	/* (first) command character */
219     nv_func_T   cmd_func;	/* function for this command */
220     short_u	cmd_flags;	/* NV_ flags */
221     short	cmd_arg;	/* value for ca.arg */
222 } nv_cmds[] =
223 {
224     {NUL,	nv_error,	0,			0},
225     {Ctrl_A,	nv_addsub,	0,			0},
226     {Ctrl_B,	nv_page,	NV_STS,			BACKWARD},
227     {Ctrl_C,	nv_esc,		0,			TRUE},
228     {Ctrl_D,	nv_halfpage,	0,			0},
229     {Ctrl_E,	nv_scroll_line,	0,			TRUE},
230     {Ctrl_F,	nv_page,	NV_STS,			FORWARD},
231     {Ctrl_G,	nv_ctrlg,	0,			0},
232     {Ctrl_H,	nv_ctrlh,	0,			0},
233     {Ctrl_I,	nv_pcmark,	0,			0},
234     {NL,	nv_down,	0,			FALSE},
235     {Ctrl_K,	nv_error,	0,			0},
236     {Ctrl_L,	nv_clear,	0,			0},
237     {Ctrl_M,	nv_down,	0,			TRUE},
238     {Ctrl_N,	nv_down,	NV_STS,			FALSE},
239     {Ctrl_O,	nv_ctrlo,	0,			0},
240     {Ctrl_P,	nv_up,		NV_STS,			FALSE},
241     {Ctrl_Q,	nv_visual,	0,			FALSE},
242     {Ctrl_R,	nv_redo,	0,			0},
243     {Ctrl_S,	nv_ignore,	0,			0},
244     {Ctrl_T,	nv_tagpop,	NV_NCW,			0},
245     {Ctrl_U,	nv_halfpage,	0,			0},
246     {Ctrl_V,	nv_visual,	0,			FALSE},
247     {'V',	nv_visual,	0,			FALSE},
248     {'v',	nv_visual,	0,			FALSE},
249     {Ctrl_W,	nv_window,	0,			0},
250     {Ctrl_X,	nv_addsub,	0,			0},
251     {Ctrl_Y,	nv_scroll_line,	0,			FALSE},
252     {Ctrl_Z,	nv_suspend,	0,			0},
253     {ESC,	nv_esc,		0,			FALSE},
254     {Ctrl_BSL,	nv_normal,	NV_NCH_ALW,		0},
255     {Ctrl_RSB,	nv_ident,	NV_NCW,			0},
256     {Ctrl_HAT,	nv_hat,		NV_NCW,			0},
257     {Ctrl__,	nv_error,	0,			0},
258     {' ',	nv_right,	0,			0},
259     {'!',	nv_operator,	0,			0},
260     {'"',	nv_regname,	NV_NCH_NOP|NV_KEEPREG,	0},
261     {'#',	nv_ident,	0,			0},
262     {'$',	nv_dollar,	0,			0},
263     {'%',	nv_percent,	0,			0},
264     {'&',	nv_optrans,	0,			0},
265     {'\'',	nv_gomark,	NV_NCH_ALW,		TRUE},
266     {'(',	nv_brace,	0,			BACKWARD},
267     {')',	nv_brace,	0,			FORWARD},
268     {'*',	nv_ident,	0,			0},
269     {'+',	nv_down,	0,			TRUE},
270     {',',	nv_csearch,	0,			TRUE},
271     {'-',	nv_up,		0,			TRUE},
272     {'.',	nv_dot,		NV_KEEPREG,		0},
273     {'/',	nv_search,	0,			FALSE},
274     {'0',	nv_beginline,	0,			0},
275     {'1',	nv_ignore,	0,			0},
276     {'2',	nv_ignore,	0,			0},
277     {'3',	nv_ignore,	0,			0},
278     {'4',	nv_ignore,	0,			0},
279     {'5',	nv_ignore,	0,			0},
280     {'6',	nv_ignore,	0,			0},
281     {'7',	nv_ignore,	0,			0},
282     {'8',	nv_ignore,	0,			0},
283     {'9',	nv_ignore,	0,			0},
284     {':',	nv_colon,	0,			0},
285     {';',	nv_csearch,	0,			FALSE},
286     {'<',	nv_operator,	NV_RL,			0},
287     {'=',	nv_operator,	0,			0},
288     {'>',	nv_operator,	NV_RL,			0},
289     {'?',	nv_search,	0,			FALSE},
290     {'@',	nv_at,		NV_NCH_NOP,		FALSE},
291     {'A',	nv_edit,	0,			0},
292     {'B',	nv_bck_word,	0,			1},
293     {'C',	nv_abbrev,	NV_KEEPREG,		0},
294     {'D',	nv_abbrev,	NV_KEEPREG,		0},
295     {'E',	nv_wordcmd,	0,			TRUE},
296     {'F',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
297     {'G',	nv_goto,	0,			TRUE},
298     {'H',	nv_scroll,	0,			0},
299     {'I',	nv_edit,	0,			0},
300     {'J',	nv_join,	0,			0},
301     {'K',	nv_ident,	0,			0},
302     {'L',	nv_scroll,	0,			0},
303     {'M',	nv_scroll,	0,			0},
304     {'N',	nv_next,	0,			SEARCH_REV},
305     {'O',	nv_open,	0,			0},
306     {'P',	nv_put,		0,			0},
307     {'Q',	nv_exmode,	NV_NCW,			0},
308     {'R',	nv_Replace,	0,			FALSE},
309     {'S',	nv_subst,	NV_KEEPREG,		0},
310     {'T',	nv_csearch,	NV_NCH_ALW|NV_LANG,	BACKWARD},
311     {'U',	nv_Undo,	0,			0},
312     {'W',	nv_wordcmd,	0,			TRUE},
313     {'X',	nv_abbrev,	NV_KEEPREG,		0},
314     {'Y',	nv_abbrev,	NV_KEEPREG,		0},
315     {'Z',	nv_Zet,		NV_NCH_NOP|NV_NCW,	0},
316     {'[',	nv_brackets,	NV_NCH_ALW,		BACKWARD},
317     {'\\',	nv_error,	0,			0},
318     {']',	nv_brackets,	NV_NCH_ALW,		FORWARD},
319     {'^',	nv_beginline,	0,			BL_WHITE | BL_FIX},
320     {'_',	nv_lineop,	0,			0},
321     {'`',	nv_gomark,	NV_NCH_ALW,		FALSE},
322     {'a',	nv_edit,	NV_NCH,			0},
323     {'b',	nv_bck_word,	0,			0},
324     {'c',	nv_operator,	0,			0},
325     {'d',	nv_operator,	0,			0},
326     {'e',	nv_wordcmd,	0,			FALSE},
327     {'f',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
328     {'g',	nv_g_cmd,	NV_NCH_ALW,		FALSE},
329     {'h',	nv_left,	NV_RL,			0},
330     {'i',	nv_edit,	NV_NCH,			0},
331     {'j',	nv_down,	0,			FALSE},
332     {'k',	nv_up,		0,			FALSE},
333     {'l',	nv_right,	NV_RL,			0},
334     {'m',	nv_mark,	NV_NCH_NOP,		0},
335     {'n',	nv_next,	0,			0},
336     {'o',	nv_open,	0,			0},
337     {'p',	nv_put,		0,			0},
338     {'q',	nv_record,	NV_NCH,			0},
339     {'r',	nv_replace,	NV_NCH_NOP|NV_LANG,	0},
340     {'s',	nv_subst,	NV_KEEPREG,		0},
341     {'t',	nv_csearch,	NV_NCH_ALW|NV_LANG,	FORWARD},
342     {'u',	nv_undo,	0,			0},
343     {'w',	nv_wordcmd,	0,			FALSE},
344     {'x',	nv_abbrev,	NV_KEEPREG,		0},
345     {'y',	nv_operator,	0,			0},
346     {'z',	nv_zet,		NV_NCH_ALW,		0},
347     {'{',	nv_findpar,	0,			BACKWARD},
348     {'|',	nv_pipe,	0,			0},
349     {'}',	nv_findpar,	0,			FORWARD},
350     {'~',	nv_tilde,	0,			0},
351 
352     /* pound sign */
353     {POUND,	nv_ident,	0,			0},
354 #ifdef FEAT_MOUSE
355     {K_MOUSEUP, nv_mousescroll,	0,			MSCR_UP},
356     {K_MOUSEDOWN, nv_mousescroll, 0,			MSCR_DOWN},
357     {K_MOUSELEFT, nv_mousescroll, 0,			MSCR_LEFT},
358     {K_MOUSERIGHT, nv_mousescroll, 0,			MSCR_RIGHT},
359     {K_LEFTMOUSE, nv_mouse,	0,			0},
360     {K_LEFTMOUSE_NM, nv_mouse,	0,			0},
361     {K_LEFTDRAG, nv_mouse,	0,			0},
362     {K_LEFTRELEASE, nv_mouse,	0,			0},
363     {K_LEFTRELEASE_NM, nv_mouse, 0,			0},
364     {K_MIDDLEMOUSE, nv_mouse,	0,			0},
365     {K_MIDDLEDRAG, nv_mouse,	0,			0},
366     {K_MIDDLERELEASE, nv_mouse,	0,			0},
367     {K_RIGHTMOUSE, nv_mouse,	0,			0},
368     {K_RIGHTDRAG, nv_mouse,	0,			0},
369     {K_RIGHTRELEASE, nv_mouse,	0,			0},
370     {K_X1MOUSE, nv_mouse,	0,			0},
371     {K_X1DRAG, nv_mouse,	0,			0},
372     {K_X1RELEASE, nv_mouse,	0,			0},
373     {K_X2MOUSE, nv_mouse,	0,			0},
374     {K_X2DRAG, nv_mouse,	0,			0},
375     {K_X2RELEASE, nv_mouse,	0,			0},
376 #endif
377     {K_IGNORE,	nv_ignore,	NV_KEEPREG,		0},
378     {K_NOP,	nv_nop,		0,			0},
379     {K_INS,	nv_edit,	0,			0},
380     {K_KINS,	nv_edit,	0,			0},
381     {K_BS,	nv_ctrlh,	0,			0},
382     {K_UP,	nv_up,		NV_SSS|NV_STS,		FALSE},
383     {K_S_UP,	nv_page,	NV_SS,			BACKWARD},
384     {K_DOWN,	nv_down,	NV_SSS|NV_STS,		FALSE},
385     {K_S_DOWN,	nv_page,	NV_SS,			FORWARD},
386     {K_LEFT,	nv_left,	NV_SSS|NV_STS|NV_RL,	0},
387     {K_S_LEFT,	nv_bck_word,	NV_SS|NV_RL,		0},
388     {K_C_LEFT,	nv_bck_word,	NV_SSS|NV_RL|NV_STS,	1},
389     {K_RIGHT,	nv_right,	NV_SSS|NV_STS|NV_RL,	0},
390     {K_S_RIGHT,	nv_wordcmd,	NV_SS|NV_RL,		FALSE},
391     {K_C_RIGHT,	nv_wordcmd,	NV_SSS|NV_RL|NV_STS,	TRUE},
392     {K_PAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
393     {K_KPAGEUP,	nv_page,	NV_SSS|NV_STS,		BACKWARD},
394     {K_PAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
395     {K_KPAGEDOWN, nv_page,	NV_SSS|NV_STS,		FORWARD},
396     {K_END,	nv_end,		NV_SSS|NV_STS,		FALSE},
397     {K_KEND,	nv_end,		NV_SSS|NV_STS,		FALSE},
398     {K_S_END,	nv_end,		NV_SS,			FALSE},
399     {K_C_END,	nv_end,		NV_SSS|NV_STS,		TRUE},
400     {K_HOME,	nv_home,	NV_SSS|NV_STS,		0},
401     {K_KHOME,	nv_home,	NV_SSS|NV_STS,		0},
402     {K_S_HOME,	nv_home,	NV_SS,			0},
403     {K_C_HOME,	nv_goto,	NV_SSS|NV_STS,		FALSE},
404     {K_DEL,	nv_abbrev,	0,			0},
405     {K_KDEL,	nv_abbrev,	0,			0},
406     {K_UNDO,	nv_kundo,	0,			0},
407     {K_HELP,	nv_help,	NV_NCW,			0},
408     {K_F1,	nv_help,	NV_NCW,			0},
409     {K_XF1,	nv_help,	NV_NCW,			0},
410     {K_SELECT,	nv_select,	0,			0},
411 #ifdef FEAT_GUI
412     {K_VER_SCROLLBAR, nv_ver_scrollbar, 0,		0},
413     {K_HOR_SCROLLBAR, nv_hor_scrollbar, 0,		0},
414 #endif
415 #ifdef FEAT_GUI_TABLINE
416     {K_TABLINE, nv_tabline,	0,			0},
417     {K_TABMENU, nv_tabmenu,	0,			0},
418 #endif
419 #ifdef FEAT_FKMAP
420     {K_F8,	farsi_fkey,	0,			0},
421     {K_F9,	farsi_fkey,	0,			0},
422 #endif
423 #ifdef FEAT_SNIFF
424     {K_SNIFF,	nv_sniff,	0,			0},
425 #endif
426 #ifdef FEAT_NETBEANS_INTG
427     {K_F21,	nv_nbcmd,	NV_NCH_ALW,		0},
428 #endif
429 #ifdef FEAT_DND
430     {K_DROP,	nv_drop,	NV_STS,			0},
431 #endif
432 #ifdef FEAT_AUTOCMD
433     {K_CURSORHOLD, nv_cursorhold, NV_KEEPREG,		0},
434 #endif
435 };
436 
437 /* Number of commands in nv_cmds[]. */
438 #define NV_CMDS_SIZE (sizeof(nv_cmds) / sizeof(struct nv_cmd))
439 
440 /* Sorted index of commands in nv_cmds[]. */
441 static short nv_cmd_idx[NV_CMDS_SIZE];
442 
443 /* The highest index for which
444  * nv_cmds[idx].cmd_char == nv_cmd_idx[nv_cmds[idx].cmd_char] */
445 static int nv_max_linear;
446 
447 /*
448  * Compare functions for qsort() below, that checks the command character
449  * through the index in nv_cmd_idx[].
450  */
451     static int
452 #ifdef __BORLANDC__
453 _RTLENTRYF
454 #endif
455 nv_compare(s1, s2)
456     const void	*s1;
457     const void	*s2;
458 {
459     int		c1, c2;
460 
461     /* The commands are sorted on absolute value. */
462     c1 = nv_cmds[*(const short *)s1].cmd_char;
463     c2 = nv_cmds[*(const short *)s2].cmd_char;
464     if (c1 < 0)
465 	c1 = -c1;
466     if (c2 < 0)
467 	c2 = -c2;
468     return c1 - c2;
469 }
470 
471 /*
472  * Initialize the nv_cmd_idx[] table.
473  */
474     void
475 init_normal_cmds()
476 {
477     int		i;
478 
479     /* Fill the index table with a one to one relation. */
480     for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
481 	nv_cmd_idx[i] = i;
482 
483     /* Sort the commands by the command character.  */
484     qsort((void *)&nv_cmd_idx, (size_t)NV_CMDS_SIZE, sizeof(short), nv_compare);
485 
486     /* Find the first entry that can't be indexed by the command character. */
487     for (i = 0; i < (int)NV_CMDS_SIZE; ++i)
488 	if (i != nv_cmds[nv_cmd_idx[i]].cmd_char)
489 	    break;
490     nv_max_linear = i - 1;
491 }
492 
493 /*
494  * Search for a command in the commands table.
495  * Returns -1 for invalid command.
496  */
497     static int
498 find_command(cmdchar)
499     int		cmdchar;
500 {
501     int		i;
502     int		idx;
503     int		top, bot;
504     int		c;
505 
506 #ifdef FEAT_MBYTE
507     /* A multi-byte character is never a command. */
508     if (cmdchar >= 0x100)
509 	return -1;
510 #endif
511 
512     /* We use the absolute value of the character.  Special keys have a
513      * negative value, but are sorted on their absolute value. */
514     if (cmdchar < 0)
515 	cmdchar = -cmdchar;
516 
517     /* If the character is in the first part: The character is the index into
518      * nv_cmd_idx[]. */
519     if (cmdchar <= nv_max_linear)
520 	return nv_cmd_idx[cmdchar];
521 
522     /* Perform a binary search. */
523     bot = nv_max_linear + 1;
524     top = NV_CMDS_SIZE - 1;
525     idx = -1;
526     while (bot <= top)
527     {
528 	i = (top + bot) / 2;
529 	c = nv_cmds[nv_cmd_idx[i]].cmd_char;
530 	if (c < 0)
531 	    c = -c;
532 	if (cmdchar == c)
533 	{
534 	    idx = nv_cmd_idx[i];
535 	    break;
536 	}
537 	if (cmdchar > c)
538 	    bot = i + 1;
539 	else
540 	    top = i - 1;
541     }
542     return idx;
543 }
544 
545 /*
546  * Execute a command in Normal mode.
547  */
548     void
549 normal_cmd(oap, toplevel)
550     oparg_T	*oap;
551     int		toplevel UNUSED;	/* TRUE when called from main() */
552 {
553     cmdarg_T	ca;			/* command arguments */
554     int		c;
555     int		ctrl_w = FALSE;		/* got CTRL-W command */
556     int		old_col = curwin->w_curswant;
557 #ifdef FEAT_CMDL_INFO
558     int		need_flushbuf;		/* need to call out_flush() */
559 #endif
560     pos_T	old_pos;		/* cursor position before command */
561     int		mapped_len;
562     static int	old_mapped_len = 0;
563     int		idx;
564 #ifdef FEAT_EVAL
565     int		set_prevcount = FALSE;
566 #endif
567 
568     vim_memset(&ca, 0, sizeof(ca));	/* also resets ca.retval */
569     ca.oap = oap;
570 
571     /* Use a count remembered from before entering an operator.  After typing
572      * "3d" we return from normal_cmd() and come back here, the "3" is
573      * remembered in "opcount". */
574     ca.opcount = opcount;
575 
576 #ifdef FEAT_SNIFF
577     want_sniff_request = sniff_connected;
578 #endif
579 
580     /*
581      * If there is an operator pending, then the command we take this time
582      * will terminate it. Finish_op tells us to finish the operation before
583      * returning this time (unless the operation was cancelled).
584      */
585 #ifdef CURSOR_SHAPE
586     c = finish_op;
587 #endif
588     finish_op = (oap->op_type != OP_NOP);
589 #ifdef CURSOR_SHAPE
590     if (finish_op != c)
591     {
592 	ui_cursor_shape();		/* may show different cursor shape */
593 # ifdef FEAT_MOUSESHAPE
594 	update_mouseshape(-1);
595 # endif
596     }
597 #endif
598 
599     /* When not finishing an operator and no register name typed, reset the
600      * count. */
601     if (!finish_op && !oap->regname)
602     {
603 	ca.opcount = 0;
604 #ifdef FEAT_EVAL
605 	set_prevcount = TRUE;
606 #endif
607     }
608 
609 #ifdef FEAT_AUTOCMD
610     /* Restore counts from before receiving K_CURSORHOLD.  This means after
611      * typing "3", handling K_CURSORHOLD and then typing "2" we get "32", not
612      * "3 * 2". */
613     if (oap->prev_opcount > 0 || oap->prev_count0 > 0)
614     {
615 	ca.opcount = oap->prev_opcount;
616 	ca.count0 = oap->prev_count0;
617 	oap->prev_opcount = 0;
618 	oap->prev_count0 = 0;
619     }
620 #endif
621 
622     mapped_len = typebuf_maplen();
623 
624     State = NORMAL_BUSY;
625 #ifdef USE_ON_FLY_SCROLL
626     dont_scroll = FALSE;	/* allow scrolling here */
627 #endif
628 
629 #ifdef FEAT_EVAL
630     /* Set v:count here, when called from main() and not a stuffed
631      * command, so that v:count can be used in an expression mapping
632      * when there is no count. Do set it for redo. */
633     if (toplevel && readbuf1_empty())
634 	set_vcount_ca(&ca, &set_prevcount);
635 #endif
636 
637     /*
638      * Get the command character from the user.
639      */
640     c = safe_vgetc();
641     LANGMAP_ADJUST(c, TRUE);
642 
643     /*
644      * If a mapping was started in Visual or Select mode, remember the length
645      * of the mapping.  This is used below to not return to Insert mode for as
646      * long as the mapping is being executed.
647      */
648     if (restart_edit == 0)
649 	old_mapped_len = 0;
650     else if (old_mapped_len
651 		|| (VIsual_active && mapped_len == 0 && typebuf_maplen() > 0))
652 	old_mapped_len = typebuf_maplen();
653 
654     if (c == NUL)
655 	c = K_ZERO;
656 
657     /*
658      * In Select mode, typed text replaces the selection.
659      */
660     if (VIsual_active
661 	    && VIsual_select
662 	    && (vim_isprintc(c) || c == NL || c == CAR || c == K_KENTER))
663     {
664 	/* Fake a "c"hange command.  When "restart_edit" is set (e.g., because
665 	 * 'insertmode' is set) fake a "d"elete command, Insert mode will
666 	 * restart automatically.
667 	 * Insert the typed character in the typeahead buffer, so that it can
668 	 * be mapped in Insert mode.  Required for ":lmap" to work. */
669 	ins_char_typebuf(c);
670 	if (restart_edit != 0)
671 	    c = 'd';
672 	else
673 	    c = 'c';
674 	msg_nowait = TRUE;	/* don't delay going to insert mode */
675 	old_mapped_len = 0;	/* do go to Insert mode */
676     }
677 
678 #ifdef FEAT_CMDL_INFO
679     need_flushbuf = add_to_showcmd(c);
680 #endif
681 
682 getcount:
683     if (!(VIsual_active && VIsual_select))
684     {
685 	/*
686 	 * Handle a count before a command and compute ca.count0.
687 	 * Note that '0' is a command and not the start of a count, but it's
688 	 * part of a count after other digits.
689 	 */
690 	while (    (c >= '1' && c <= '9')
691 		|| (ca.count0 != 0 && (c == K_DEL || c == K_KDEL || c == '0')))
692 	{
693 	    if (c == K_DEL || c == K_KDEL)
694 	    {
695 		ca.count0 /= 10;
696 #ifdef FEAT_CMDL_INFO
697 		del_from_showcmd(4);	/* delete the digit and ~@% */
698 #endif
699 	    }
700 	    else
701 		ca.count0 = ca.count0 * 10 + (c - '0');
702 	    if (ca.count0 < 0)	    /* got too large! */
703 		ca.count0 = 999999999L;
704 #ifdef FEAT_EVAL
705 	    /* Set v:count here, when called from main() and not a stuffed
706 	     * command, so that v:count can be used in an expression mapping
707 	     * right after the count. Do set it for redo. */
708 	    if (toplevel && readbuf1_empty())
709 		set_vcount_ca(&ca, &set_prevcount);
710 #endif
711 	    if (ctrl_w)
712 	    {
713 		++no_mapping;
714 		++allow_keys;		/* no mapping for nchar, but keys */
715 	    }
716 	    ++no_zero_mapping;		/* don't map zero here */
717 	    c = plain_vgetc();
718 	    LANGMAP_ADJUST(c, TRUE);
719 	    --no_zero_mapping;
720 	    if (ctrl_w)
721 	    {
722 		--no_mapping;
723 		--allow_keys;
724 	    }
725 #ifdef FEAT_CMDL_INFO
726 	    need_flushbuf |= add_to_showcmd(c);
727 #endif
728 	}
729 
730 	/*
731 	 * If we got CTRL-W there may be a/another count
732 	 */
733 	if (c == Ctrl_W && !ctrl_w && oap->op_type == OP_NOP)
734 	{
735 	    ctrl_w = TRUE;
736 	    ca.opcount = ca.count0;	/* remember first count */
737 	    ca.count0 = 0;
738 	    ++no_mapping;
739 	    ++allow_keys;		/* no mapping for nchar, but keys */
740 	    c = plain_vgetc();		/* get next character */
741 	    LANGMAP_ADJUST(c, TRUE);
742 	    --no_mapping;
743 	    --allow_keys;
744 #ifdef FEAT_CMDL_INFO
745 	    need_flushbuf |= add_to_showcmd(c);
746 #endif
747 	    goto getcount;		/* jump back */
748 	}
749     }
750 
751 #ifdef FEAT_AUTOCMD
752     if (c == K_CURSORHOLD)
753     {
754 	/* Save the count values so that ca.opcount and ca.count0 are exactly
755 	 * the same when coming back here after handling K_CURSORHOLD. */
756 	oap->prev_opcount = ca.opcount;
757 	oap->prev_count0 = ca.count0;
758     }
759     else
760 #endif
761 	if (ca.opcount != 0)
762     {
763 	/*
764 	 * If we're in the middle of an operator (including after entering a
765 	 * yank buffer with '"') AND we had a count before the operator, then
766 	 * that count overrides the current value of ca.count0.
767 	 * What this means effectively, is that commands like "3dw" get turned
768 	 * into "d3w" which makes things fall into place pretty neatly.
769 	 * If you give a count before AND after the operator, they are
770 	 * multiplied.
771 	 */
772 	if (ca.count0)
773 	    ca.count0 *= ca.opcount;
774 	else
775 	    ca.count0 = ca.opcount;
776     }
777 
778     /*
779      * Always remember the count.  It will be set to zero (on the next call,
780      * above) when there is no pending operator.
781      * When called from main(), save the count for use by the "count" built-in
782      * variable.
783      */
784     ca.opcount = ca.count0;
785     ca.count1 = (ca.count0 == 0 ? 1 : ca.count0);
786 
787 #ifdef FEAT_EVAL
788     /*
789      * Only set v:count when called from main() and not a stuffed command.
790      * Do set it for redo.
791      */
792     if (toplevel && readbuf1_empty())
793 	set_vcount(ca.count0, ca.count1, set_prevcount);
794 #endif
795 
796     /*
797      * Find the command character in the table of commands.
798      * For CTRL-W we already got nchar when looking for a count.
799      */
800     if (ctrl_w)
801     {
802 	ca.nchar = c;
803 	ca.cmdchar = Ctrl_W;
804     }
805     else
806 	ca.cmdchar = c;
807     idx = find_command(ca.cmdchar);
808     if (idx < 0)
809     {
810 	/* Not a known command: beep. */
811 	clearopbeep(oap);
812 	goto normal_end;
813     }
814 
815     if (text_locked() && (nv_cmds[idx].cmd_flags & NV_NCW))
816     {
817 	/* This command is not allowed while editing a cmdline: beep. */
818 	clearopbeep(oap);
819 	text_locked_msg();
820 	goto normal_end;
821     }
822 #ifdef FEAT_AUTOCMD
823     if ((nv_cmds[idx].cmd_flags & NV_NCW) && curbuf_locked())
824 	goto normal_end;
825 #endif
826 
827     /*
828      * In Visual/Select mode, a few keys are handled in a special way.
829      */
830     if (VIsual_active)
831     {
832 	/* when 'keymodel' contains "stopsel" may stop Select/Visual mode */
833 	if (km_stopsel
834 		&& (nv_cmds[idx].cmd_flags & NV_STS)
835 		&& !(mod_mask & MOD_MASK_SHIFT))
836 	{
837 	    end_visual_mode();
838 	    redraw_curbuf_later(INVERTED);
839 	}
840 
841 	/* Keys that work different when 'keymodel' contains "startsel" */
842 	if (km_startsel)
843 	{
844 	    if (nv_cmds[idx].cmd_flags & NV_SS)
845 	    {
846 		unshift_special(&ca);
847 		idx = find_command(ca.cmdchar);
848 		if (idx < 0)
849 		{
850 		    /* Just in case */
851 		    clearopbeep(oap);
852 		    goto normal_end;
853 		}
854 	    }
855 	    else if ((nv_cmds[idx].cmd_flags & NV_SSS)
856 					       && (mod_mask & MOD_MASK_SHIFT))
857 	    {
858 		mod_mask &= ~MOD_MASK_SHIFT;
859 	    }
860 	}
861     }
862 
863 #ifdef FEAT_RIGHTLEFT
864     if (curwin->w_p_rl && KeyTyped && !KeyStuffed
865 					  && (nv_cmds[idx].cmd_flags & NV_RL))
866     {
867 	/* Invert horizontal movements and operations.  Only when typed by the
868 	 * user directly, not when the result of a mapping or "x" translated
869 	 * to "dl". */
870 	switch (ca.cmdchar)
871 	{
872 	    case 'l':	    ca.cmdchar = 'h'; break;
873 	    case K_RIGHT:   ca.cmdchar = K_LEFT; break;
874 	    case K_S_RIGHT: ca.cmdchar = K_S_LEFT; break;
875 	    case K_C_RIGHT: ca.cmdchar = K_C_LEFT; break;
876 	    case 'h':	    ca.cmdchar = 'l'; break;
877 	    case K_LEFT:    ca.cmdchar = K_RIGHT; break;
878 	    case K_S_LEFT:  ca.cmdchar = K_S_RIGHT; break;
879 	    case K_C_LEFT:  ca.cmdchar = K_C_RIGHT; break;
880 	    case '>':	    ca.cmdchar = '<'; break;
881 	    case '<':	    ca.cmdchar = '>'; break;
882 	}
883 	idx = find_command(ca.cmdchar);
884     }
885 #endif
886 
887     /*
888      * Get an additional character if we need one.
889      */
890     if ((nv_cmds[idx].cmd_flags & NV_NCH)
891 	    && (((nv_cmds[idx].cmd_flags & NV_NCH_NOP) == NV_NCH_NOP
892 		    && oap->op_type == OP_NOP)
893 		|| (nv_cmds[idx].cmd_flags & NV_NCH_ALW) == NV_NCH_ALW
894 		|| (ca.cmdchar == 'q'
895 		    && oap->op_type == OP_NOP
896 		    && !Recording
897 		    && !Exec_reg)
898 		|| ((ca.cmdchar == 'a' || ca.cmdchar == 'i')
899 		    && (oap->op_type != OP_NOP || VIsual_active))))
900     {
901 	int	*cp;
902 	int	repl = FALSE;	/* get character for replace mode */
903 	int	lit = FALSE;	/* get extra character literally */
904 	int	langmap_active = FALSE;    /* using :lmap mappings */
905 	int	lang;		/* getting a text character */
906 #ifdef USE_IM_CONTROL
907 	int	save_smd;	/* saved value of p_smd */
908 #endif
909 
910 	++no_mapping;
911 	++allow_keys;		/* no mapping for nchar, but allow key codes */
912 #ifdef FEAT_AUTOCMD
913 	/* Don't generate a CursorHold event here, most commands can't handle
914 	 * it, e.g., nv_replace(), nv_csearch(). */
915 	did_cursorhold = TRUE;
916 #endif
917 	if (ca.cmdchar == 'g')
918 	{
919 	    /*
920 	     * For 'g' get the next character now, so that we can check for
921 	     * "gr", "g'" and "g`".
922 	     */
923 	    ca.nchar = plain_vgetc();
924 	    LANGMAP_ADJUST(ca.nchar, TRUE);
925 #ifdef FEAT_CMDL_INFO
926 	    need_flushbuf |= add_to_showcmd(ca.nchar);
927 #endif
928 	    if (ca.nchar == 'r' || ca.nchar == '\'' || ca.nchar == '`'
929 						       || ca.nchar == Ctrl_BSL)
930 	    {
931 		cp = &ca.extra_char;	/* need to get a third character */
932 		if (ca.nchar != 'r')
933 		    lit = TRUE;			/* get it literally */
934 		else
935 		    repl = TRUE;		/* get it in replace mode */
936 	    }
937 	    else
938 		cp = NULL;		/* no third character needed */
939 	}
940 	else
941 	{
942 	    if (ca.cmdchar == 'r')		/* get it in replace mode */
943 		repl = TRUE;
944 	    cp = &ca.nchar;
945 	}
946 	lang = (repl || (nv_cmds[idx].cmd_flags & NV_LANG));
947 
948 	/*
949 	 * Get a second or third character.
950 	 */
951 	if (cp != NULL)
952 	{
953 #ifdef CURSOR_SHAPE
954 	    if (repl)
955 	    {
956 		State = REPLACE;	/* pretend Replace mode */
957 		ui_cursor_shape();	/* show different cursor shape */
958 	    }
959 #endif
960 	    if (lang && curbuf->b_p_iminsert == B_IMODE_LMAP)
961 	    {
962 		/* Allow mappings defined with ":lmap". */
963 		--no_mapping;
964 		--allow_keys;
965 		if (repl)
966 		    State = LREPLACE;
967 		else
968 		    State = LANGMAP;
969 		langmap_active = TRUE;
970 	    }
971 #ifdef USE_IM_CONTROL
972 	    save_smd = p_smd;
973 	    p_smd = FALSE;	/* Don't let the IM code show the mode here */
974 	    if (lang && curbuf->b_p_iminsert == B_IMODE_IM)
975 		im_set_active(TRUE);
976 #endif
977 
978 	    *cp = plain_vgetc();
979 
980 	    if (langmap_active)
981 	    {
982 		/* Undo the decrement done above */
983 		++no_mapping;
984 		++allow_keys;
985 		State = NORMAL_BUSY;
986 	    }
987 #ifdef USE_IM_CONTROL
988 	    if (lang)
989 	    {
990 		if (curbuf->b_p_iminsert != B_IMODE_LMAP)
991 		    im_save_status(&curbuf->b_p_iminsert);
992 		im_set_active(FALSE);
993 	    }
994 	    p_smd = save_smd;
995 #endif
996 #ifdef CURSOR_SHAPE
997 	    State = NORMAL_BUSY;
998 #endif
999 #ifdef FEAT_CMDL_INFO
1000 	    need_flushbuf |= add_to_showcmd(*cp);
1001 #endif
1002 
1003 	    if (!lit)
1004 	    {
1005 #ifdef FEAT_DIGRAPHS
1006 		/* Typing CTRL-K gets a digraph. */
1007 		if (*cp == Ctrl_K
1008 			&& ((nv_cmds[idx].cmd_flags & NV_LANG)
1009 			    || cp == &ca.extra_char)
1010 			&& vim_strchr(p_cpo, CPO_DIGRAPH) == NULL)
1011 		{
1012 		    c = get_digraph(FALSE);
1013 		    if (c > 0)
1014 		    {
1015 			*cp = c;
1016 # ifdef FEAT_CMDL_INFO
1017 			/* Guessing how to update showcmd here... */
1018 			del_from_showcmd(3);
1019 			need_flushbuf |= add_to_showcmd(*cp);
1020 # endif
1021 		    }
1022 		}
1023 #endif
1024 
1025 		/* adjust chars > 127, except after "tTfFr" commands */
1026 		LANGMAP_ADJUST(*cp, !lang);
1027 #ifdef FEAT_RIGHTLEFT
1028 		/* adjust Hebrew mapped char */
1029 		if (p_hkmap && lang && KeyTyped)
1030 		    *cp = hkmap(*cp);
1031 # ifdef FEAT_FKMAP
1032 		/* adjust Farsi mapped char */
1033 		if (p_fkmap && lang && KeyTyped)
1034 		    *cp = fkmap(*cp);
1035 # endif
1036 #endif
1037 	    }
1038 
1039 	    /*
1040 	     * When the next character is CTRL-\ a following CTRL-N means the
1041 	     * command is aborted and we go to Normal mode.
1042 	     */
1043 	    if (cp == &ca.extra_char
1044 		    && ca.nchar == Ctrl_BSL
1045 		    && (ca.extra_char == Ctrl_N || ca.extra_char == Ctrl_G))
1046 	    {
1047 		ca.cmdchar = Ctrl_BSL;
1048 		ca.nchar = ca.extra_char;
1049 		idx = find_command(ca.cmdchar);
1050 	    }
1051 	    else if ((ca.nchar == 'n' || ca.nchar == 'N') && ca.cmdchar == 'g')
1052 		ca.oap->op_type = get_op_type(*cp, NUL);
1053 	    else if (*cp == Ctrl_BSL)
1054 	    {
1055 		long towait = (p_ttm >= 0 ? p_ttm : p_tm);
1056 
1057 		/* There is a busy wait here when typing "f<C-\>" and then
1058 		 * something different from CTRL-N.  Can't be avoided. */
1059 		while ((c = vpeekc()) <= 0 && towait > 0L)
1060 		{
1061 		    do_sleep(towait > 50L ? 50L : towait);
1062 		    towait -= 50L;
1063 		}
1064 		if (c > 0)
1065 		{
1066 		    c = plain_vgetc();
1067 		    if (c != Ctrl_N && c != Ctrl_G)
1068 			vungetc(c);
1069 		    else
1070 		    {
1071 			ca.cmdchar = Ctrl_BSL;
1072 			ca.nchar = c;
1073 			idx = find_command(ca.cmdchar);
1074 		    }
1075 		}
1076 	    }
1077 
1078 #ifdef FEAT_MBYTE
1079 	    /* When getting a text character and the next character is a
1080 	     * multi-byte character, it could be a composing character.
1081 	     * However, don't wait for it to arrive. Also, do enable mapping,
1082 	     * because if it's put back with vungetc() it's too late to apply
1083 	     * mapping. */
1084 	    --no_mapping;
1085 	    while (enc_utf8 && lang && (c = vpeekc()) > 0
1086 				 && (c >= 0x100 || MB_BYTE2LEN(vpeekc()) > 1))
1087 	    {
1088 		c = plain_vgetc();
1089 		if (!utf_iscomposing(c))
1090 		{
1091 		    vungetc(c);		/* it wasn't, put it back */
1092 		    break;
1093 		}
1094 		else if (ca.ncharC1 == 0)
1095 		    ca.ncharC1 = c;
1096 		else
1097 		    ca.ncharC2 = c;
1098 	    }
1099 	    ++no_mapping;
1100 #endif
1101 	}
1102 	--no_mapping;
1103 	--allow_keys;
1104     }
1105 
1106 #ifdef FEAT_CMDL_INFO
1107     /*
1108      * Flush the showcmd characters onto the screen so we can see them while
1109      * the command is being executed.  Only do this when the shown command was
1110      * actually displayed, otherwise this will slow down a lot when executing
1111      * mappings.
1112      */
1113     if (need_flushbuf)
1114 	out_flush();
1115 #endif
1116 #ifdef FEAT_AUTOCMD
1117     if (ca.cmdchar != K_IGNORE)
1118 	did_cursorhold = FALSE;
1119 #endif
1120 
1121     State = NORMAL;
1122 
1123     if (ca.nchar == ESC)
1124     {
1125 	clearop(oap);
1126 	if (restart_edit == 0 && goto_im())
1127 	    restart_edit = 'a';
1128 	goto normal_end;
1129     }
1130 
1131     if (ca.cmdchar != K_IGNORE)
1132     {
1133 	msg_didout = FALSE;    /* don't scroll screen up for normal command */
1134 	msg_col = 0;
1135     }
1136 
1137     old_pos = curwin->w_cursor;		/* remember where cursor was */
1138 
1139     /* When 'keymodel' contains "startsel" some keys start Select/Visual
1140      * mode. */
1141     if (!VIsual_active && km_startsel)
1142     {
1143 	if (nv_cmds[idx].cmd_flags & NV_SS)
1144 	{
1145 	    start_selection();
1146 	    unshift_special(&ca);
1147 	    idx = find_command(ca.cmdchar);
1148 	}
1149 	else if ((nv_cmds[idx].cmd_flags & NV_SSS)
1150 					   && (mod_mask & MOD_MASK_SHIFT))
1151 	{
1152 	    start_selection();
1153 	    mod_mask &= ~MOD_MASK_SHIFT;
1154 	}
1155     }
1156 
1157     /*
1158      * Execute the command!
1159      * Call the command function found in the commands table.
1160      */
1161     ca.arg = nv_cmds[idx].cmd_arg;
1162     (nv_cmds[idx].cmd_func)(&ca);
1163 
1164     /*
1165      * If we didn't start or finish an operator, reset oap->regname, unless we
1166      * need it later.
1167      */
1168     if (!finish_op
1169 	    && !oap->op_type
1170 	    && (idx < 0 || !(nv_cmds[idx].cmd_flags & NV_KEEPREG)))
1171     {
1172 	clearop(oap);
1173 #ifdef FEAT_EVAL
1174 	{
1175 	    int regname = 0;
1176 
1177 	    /* Adjust the register according to 'clipboard', so that when
1178 	     * "unnamed" is present it becomes '*' or '+' instead of '"'. */
1179 # ifdef FEAT_CLIPBOARD
1180 	    adjust_clip_reg(&regname);
1181 # endif
1182 	    set_reg_var(regname);
1183 	}
1184 #endif
1185     }
1186 
1187     /* Get the length of mapped chars again after typing a count, second
1188      * character or "z333<cr>". */
1189     if (old_mapped_len > 0)
1190 	old_mapped_len = typebuf_maplen();
1191 
1192     /*
1193      * If an operation is pending, handle it...
1194      */
1195     do_pending_operator(&ca, old_col, FALSE);
1196 
1197     /*
1198      * Wait for a moment when a message is displayed that will be overwritten
1199      * by the mode message.
1200      * In Visual mode and with "^O" in Insert mode, a short message will be
1201      * overwritten by the mode message.  Wait a bit, until a key is hit.
1202      * In Visual mode, it's more important to keep the Visual area updated
1203      * than keeping a message (e.g. from a /pat search).
1204      * Only do this if the command was typed, not from a mapping.
1205      * Don't wait when emsg_silent is non-zero.
1206      * Also wait a bit after an error message, e.g. for "^O:".
1207      * Don't redraw the screen, it would remove the message.
1208      */
1209     if (       ((p_smd
1210 		    && msg_silent == 0
1211 		    && (restart_edit != 0
1212 			|| (VIsual_active
1213 			    && old_pos.lnum == curwin->w_cursor.lnum
1214 			    && old_pos.col == curwin->w_cursor.col)
1215 		       )
1216 		    && (clear_cmdline
1217 			|| redraw_cmdline)
1218 		    && (msg_didout || (msg_didany && msg_scroll))
1219 		    && !msg_nowait
1220 		    && KeyTyped)
1221 		|| (restart_edit != 0
1222 		    && !VIsual_active
1223 		    && (msg_scroll
1224 			|| emsg_on_display)))
1225 	    && oap->regname == 0
1226 	    && !(ca.retval & CA_COMMAND_BUSY)
1227 	    && stuff_empty()
1228 	    && typebuf_typed()
1229 	    && emsg_silent == 0
1230 	    && !did_wait_return
1231 	    && oap->op_type == OP_NOP)
1232     {
1233 	int	save_State = State;
1234 
1235 	/* Draw the cursor with the right shape here */
1236 	if (restart_edit != 0)
1237 	    State = INSERT;
1238 
1239 	/* If need to redraw, and there is a "keep_msg", redraw before the
1240 	 * delay */
1241 	if (must_redraw && keep_msg != NULL && !emsg_on_display)
1242 	{
1243 	    char_u	*kmsg;
1244 
1245 	    kmsg = keep_msg;
1246 	    keep_msg = NULL;
1247 	    /* showmode() will clear keep_msg, but we want to use it anyway */
1248 	    update_screen(0);
1249 	    /* now reset it, otherwise it's put in the history again */
1250 	    keep_msg = kmsg;
1251 	    msg_attr(kmsg, keep_msg_attr);
1252 	    vim_free(kmsg);
1253 	}
1254 	setcursor();
1255 	cursor_on();
1256 	out_flush();
1257 	if (msg_scroll || emsg_on_display)
1258 	    ui_delay(1000L, TRUE);	/* wait at least one second */
1259 	ui_delay(3000L, FALSE);		/* wait up to three seconds */
1260 	State = save_State;
1261 
1262 	msg_scroll = FALSE;
1263 	emsg_on_display = FALSE;
1264     }
1265 
1266     /*
1267      * Finish up after executing a Normal mode command.
1268      */
1269 normal_end:
1270 
1271     msg_nowait = FALSE;
1272 
1273     /* Reset finish_op, in case it was set */
1274 #ifdef CURSOR_SHAPE
1275     c = finish_op;
1276 #endif
1277     finish_op = FALSE;
1278 #ifdef CURSOR_SHAPE
1279     /* Redraw the cursor with another shape, if we were in Operator-pending
1280      * mode or did a replace command. */
1281     if (c || ca.cmdchar == 'r')
1282     {
1283 	ui_cursor_shape();		/* may show different cursor shape */
1284 # ifdef FEAT_MOUSESHAPE
1285 	update_mouseshape(-1);
1286 # endif
1287     }
1288 #endif
1289 
1290 #ifdef FEAT_CMDL_INFO
1291     if (oap->op_type == OP_NOP && oap->regname == 0
1292 # ifdef FEAT_AUTOCMD
1293 	    && ca.cmdchar != K_CURSORHOLD
1294 # endif
1295 	    )
1296 	clear_showcmd();
1297 #endif
1298 
1299     checkpcmark();		/* check if we moved since setting pcmark */
1300     vim_free(ca.searchbuf);
1301 
1302 #ifdef FEAT_MBYTE
1303     if (has_mbyte)
1304 	mb_adjust_cursor();
1305 #endif
1306 
1307 #ifdef FEAT_SCROLLBIND
1308     if (curwin->w_p_scb && toplevel)
1309     {
1310 	validate_cursor();	/* may need to update w_leftcol */
1311 	do_check_scrollbind(TRUE);
1312     }
1313 #endif
1314 
1315 #ifdef FEAT_CURSORBIND
1316     if (curwin->w_p_crb && toplevel)
1317     {
1318 	validate_cursor();	/* may need to update w_leftcol */
1319 	do_check_cursorbind();
1320     }
1321 #endif
1322 
1323     /*
1324      * May restart edit(), if we got here with CTRL-O in Insert mode (but not
1325      * if still inside a mapping that started in Visual mode).
1326      * May switch from Visual to Select mode after CTRL-O command.
1327      */
1328     if (       oap->op_type == OP_NOP
1329 	    && ((restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1330 		|| restart_VIsual_select == 1)
1331 	    && !(ca.retval & CA_COMMAND_BUSY)
1332 	    && stuff_empty()
1333 	    && oap->regname == 0)
1334     {
1335 	if (restart_VIsual_select == 1)
1336 	{
1337 	    VIsual_select = TRUE;
1338 	    showmode();
1339 	    restart_VIsual_select = 0;
1340 	}
1341 	if (restart_edit != 0 && !VIsual_active && old_mapped_len == 0)
1342 	    (void)edit(restart_edit, FALSE, 1L);
1343     }
1344 
1345     if (restart_VIsual_select == 2)
1346 	restart_VIsual_select = 1;
1347 
1348     /* Save count before an operator for next time. */
1349     opcount = ca.opcount;
1350 }
1351 
1352 #ifdef FEAT_EVAL
1353 /*
1354  * Set v:count and v:count1 according to "cap".
1355  * Set v:prevcount only when "set_prevcount" is TRUE.
1356  */
1357     static void
1358 set_vcount_ca(cap, set_prevcount)
1359     cmdarg_T	*cap;
1360     int		*set_prevcount;
1361 {
1362     long count = cap->count0;
1363 
1364     /* multiply with cap->opcount the same way as above */
1365     if (cap->opcount != 0)
1366 	count = cap->opcount * (count == 0 ? 1 : count);
1367     set_vcount(count, count == 0 ? 1 : count, *set_prevcount);
1368     *set_prevcount = FALSE;  /* only set v:prevcount once */
1369 }
1370 #endif
1371 
1372 /*
1373  * Handle an operator after visual mode or when the movement is finished
1374  */
1375     void
1376 do_pending_operator(cap, old_col, gui_yank)
1377     cmdarg_T	*cap;
1378     int		old_col;
1379     int		gui_yank;
1380 {
1381     oparg_T	*oap = cap->oap;
1382     pos_T	old_cursor;
1383     int		empty_region_error;
1384     int		restart_edit_save;
1385 #ifdef FEAT_LINEBREAK
1386     int		lbr_saved = curwin->w_p_lbr;
1387 #endif
1388 
1389     /* The visual area is remembered for redo */
1390     static int	    redo_VIsual_mode = NUL; /* 'v', 'V', or Ctrl-V */
1391     static linenr_T redo_VIsual_line_count; /* number of lines */
1392     static colnr_T  redo_VIsual_vcol;	    /* number of cols or end column */
1393     static long	    redo_VIsual_count;	    /* count for Visual operator */
1394 #ifdef FEAT_VIRTUALEDIT
1395     int		    include_line_break = FALSE;
1396 #endif
1397 
1398 #if defined(FEAT_CLIPBOARD)
1399     /*
1400      * Yank the visual area into the GUI selection register before we operate
1401      * on it and lose it forever.
1402      * Don't do it if a specific register was specified, so that ""x"*P works.
1403      * This could call do_pending_operator() recursively, but that's OK
1404      * because gui_yank will be TRUE for the nested call.
1405      */
1406     if ((clip_star.available || clip_plus.available)
1407 	    && oap->op_type != OP_NOP
1408 	    && !gui_yank
1409 	    && VIsual_active
1410 	    && !redo_VIsual_busy
1411 	    && oap->regname == 0)
1412 	clip_auto_select();
1413 #endif
1414     old_cursor = curwin->w_cursor;
1415 
1416     /*
1417      * If an operation is pending, handle it...
1418      */
1419     if ((finish_op || VIsual_active) && oap->op_type != OP_NOP)
1420     {
1421 #ifdef FEAT_LINEBREAK
1422 	/* Avoid a problem with unwanted linebreaks in block mode. */
1423 	if (curwin->w_p_lbr)
1424 	    curwin->w_valid &= ~VALID_VIRTCOL;
1425 	curwin->w_p_lbr = FALSE;
1426 #endif
1427 	oap->is_VIsual = VIsual_active;
1428 	if (oap->motion_force == 'V')
1429 	    oap->motion_type = MLINE;
1430 	else if (oap->motion_force == 'v')
1431 	{
1432 	    /* If the motion was linewise, "inclusive" will not have been set.
1433 	     * Use "exclusive" to be consistent.  Makes "dvj" work nice. */
1434 	    if (oap->motion_type == MLINE)
1435 		oap->inclusive = FALSE;
1436 	    /* If the motion already was characterwise, toggle "inclusive" */
1437 	    else if (oap->motion_type == MCHAR)
1438 		oap->inclusive = !oap->inclusive;
1439 	    oap->motion_type = MCHAR;
1440 	}
1441 	else if (oap->motion_force == Ctrl_V)
1442 	{
1443 	    /* Change line- or characterwise motion into Visual block mode. */
1444 	    VIsual_active = TRUE;
1445 	    VIsual = oap->start;
1446 	    VIsual_mode = Ctrl_V;
1447 	    VIsual_select = FALSE;
1448 	    VIsual_reselect = FALSE;
1449 	}
1450 
1451 	/* Only redo yank when 'y' flag is in 'cpoptions'. */
1452 	/* Never redo "zf" (define fold). */
1453 	if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1454 		&& ((!VIsual_active || oap->motion_force)
1455 		    /* Also redo Operator-pending Visual mode mappings */
1456 		    || (VIsual_active && cap->cmdchar == ':'
1457 						 && oap->op_type != OP_COLON))
1458 		&& cap->cmdchar != 'D'
1459 #ifdef FEAT_FOLDING
1460 		&& oap->op_type != OP_FOLD
1461 		&& oap->op_type != OP_FOLDOPEN
1462 		&& oap->op_type != OP_FOLDOPENREC
1463 		&& oap->op_type != OP_FOLDCLOSE
1464 		&& oap->op_type != OP_FOLDCLOSEREC
1465 		&& oap->op_type != OP_FOLDDEL
1466 		&& oap->op_type != OP_FOLDDELREC
1467 #endif
1468 		)
1469 	{
1470 	    prep_redo(oap->regname, cap->count0,
1471 		    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1472 		    oap->motion_force, cap->cmdchar, cap->nchar);
1473 	    if (cap->cmdchar == '/' || cap->cmdchar == '?') /* was a search */
1474 	    {
1475 		/*
1476 		 * If 'cpoptions' does not contain 'r', insert the search
1477 		 * pattern to really repeat the same command.
1478 		 */
1479 		if (vim_strchr(p_cpo, CPO_REDO) == NULL)
1480 		    AppendToRedobuffLit(cap->searchbuf, -1);
1481 		AppendToRedobuff(NL_STR);
1482 	    }
1483 	    else if (cap->cmdchar == ':')
1484 	    {
1485 		/* do_cmdline() has stored the first typed line in
1486 		 * "repeat_cmdline".  When several lines are typed repeating
1487 		 * won't be possible. */
1488 		if (repeat_cmdline == NULL)
1489 		    ResetRedobuff();
1490 		else
1491 		{
1492 		    AppendToRedobuffLit(repeat_cmdline, -1);
1493 		    AppendToRedobuff(NL_STR);
1494 		    vim_free(repeat_cmdline);
1495 		    repeat_cmdline = NULL;
1496 		}
1497 	    }
1498 	}
1499 
1500 	if (redo_VIsual_busy)
1501 	{
1502 	    /* Redo of an operation on a Visual area. Use the same size from
1503 	     * redo_VIsual_line_count and redo_VIsual_vcol. */
1504 	    oap->start = curwin->w_cursor;
1505 	    curwin->w_cursor.lnum += redo_VIsual_line_count - 1;
1506 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1507 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1508 	    VIsual_mode = redo_VIsual_mode;
1509 	    if (redo_VIsual_vcol == MAXCOL || VIsual_mode == 'v')
1510 	    {
1511 		if (VIsual_mode == 'v')
1512 		{
1513 		    if (redo_VIsual_line_count <= 1)
1514 		    {
1515 			validate_virtcol();
1516 			curwin->w_curswant =
1517 				     curwin->w_virtcol + redo_VIsual_vcol - 1;
1518 		    }
1519 		    else
1520 			curwin->w_curswant = redo_VIsual_vcol;
1521 		}
1522 		else
1523 		{
1524 		    curwin->w_curswant = MAXCOL;
1525 		}
1526 		coladvance(curwin->w_curswant);
1527 	    }
1528 	    cap->count0 = redo_VIsual_count;
1529 	    if (redo_VIsual_count != 0)
1530 		cap->count1 = redo_VIsual_count;
1531 	    else
1532 		cap->count1 = 1;
1533 	}
1534 	else if (VIsual_active)
1535 	{
1536 	    if (!gui_yank)
1537 	    {
1538 		/* Save the current VIsual area for '< and '> marks, and "gv" */
1539 		curbuf->b_visual.vi_start = VIsual;
1540 		curbuf->b_visual.vi_end = curwin->w_cursor;
1541 		curbuf->b_visual.vi_mode = VIsual_mode;
1542 		if (VIsual_mode_orig != NUL)
1543 		{
1544 		    curbuf->b_visual.vi_mode = VIsual_mode_orig;
1545 		    VIsual_mode_orig = NUL;
1546 		}
1547 		curbuf->b_visual.vi_curswant = curwin->w_curswant;
1548 # ifdef FEAT_EVAL
1549 		curbuf->b_visual_mode_eval = VIsual_mode;
1550 # endif
1551 	    }
1552 
1553 	    /* In Select mode, a linewise selection is operated upon like a
1554 	     * characterwise selection.
1555 	     * Special case: gH<Del> deletes the last line. */
1556 	    if (VIsual_select && VIsual_mode == 'V'
1557 					    && cap->oap->op_type != OP_DELETE)
1558 	    {
1559 		if (lt(VIsual, curwin->w_cursor))
1560 		{
1561 		    VIsual.col = 0;
1562 		    curwin->w_cursor.col =
1563 			       (colnr_T)STRLEN(ml_get(curwin->w_cursor.lnum));
1564 		}
1565 		else
1566 		{
1567 		    curwin->w_cursor.col = 0;
1568 		    VIsual.col = (colnr_T)STRLEN(ml_get(VIsual.lnum));
1569 		}
1570 		VIsual_mode = 'v';
1571 	    }
1572 	    /* If 'selection' is "exclusive", backup one character for
1573 	     * charwise selections. */
1574 	    else if (VIsual_mode == 'v')
1575 	    {
1576 # ifdef FEAT_VIRTUALEDIT
1577 		include_line_break =
1578 # endif
1579 		    unadjust_for_sel();
1580 	    }
1581 
1582 	    oap->start = VIsual;
1583 	    if (VIsual_mode == 'V')
1584 		oap->start.col = 0;
1585 	}
1586 
1587 	/*
1588 	 * Set oap->start to the first position of the operated text, oap->end
1589 	 * to the end of the operated text.  w_cursor is equal to oap->start.
1590 	 */
1591 	if (lt(oap->start, curwin->w_cursor))
1592 	{
1593 #ifdef FEAT_FOLDING
1594 	    /* Include folded lines completely. */
1595 	    if (!VIsual_active)
1596 	    {
1597 		if (hasFolding(oap->start.lnum, &oap->start.lnum, NULL))
1598 		    oap->start.col = 0;
1599 		if (hasFolding(curwin->w_cursor.lnum, NULL,
1600 						      &curwin->w_cursor.lnum))
1601 		    curwin->w_cursor.col = (colnr_T)STRLEN(ml_get_curline());
1602 	    }
1603 #endif
1604 	    oap->end = curwin->w_cursor;
1605 	    curwin->w_cursor = oap->start;
1606 
1607 	    /* w_virtcol may have been updated; if the cursor goes back to its
1608 	     * previous position w_virtcol becomes invalid and isn't updated
1609 	     * automatically. */
1610 	    curwin->w_valid &= ~VALID_VIRTCOL;
1611 	}
1612 	else
1613 	{
1614 #ifdef FEAT_FOLDING
1615 	    /* Include folded lines completely. */
1616 	    if (!VIsual_active && oap->motion_type == MLINE)
1617 	    {
1618 		if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum,
1619 									NULL))
1620 		    curwin->w_cursor.col = 0;
1621 		if (hasFolding(oap->start.lnum, NULL, &oap->start.lnum))
1622 		    oap->start.col = (colnr_T)STRLEN(ml_get(oap->start.lnum));
1623 	    }
1624 #endif
1625 	    oap->end = oap->start;
1626 	    oap->start = curwin->w_cursor;
1627 	}
1628 
1629 	oap->line_count = oap->end.lnum - oap->start.lnum + 1;
1630 
1631 #ifdef FEAT_VIRTUALEDIT
1632 	/* Set "virtual_op" before resetting VIsual_active. */
1633 	virtual_op = virtual_active();
1634 #endif
1635 
1636 	if (VIsual_active || redo_VIsual_busy)
1637 	{
1638 	    get_op_vcol(oap, redo_VIsual_vcol, TRUE);
1639 
1640 	    if (!redo_VIsual_busy && !gui_yank)
1641 	    {
1642 		/*
1643 		 * Prepare to reselect and redo Visual: this is based on the
1644 		 * size of the Visual text
1645 		 */
1646 		resel_VIsual_mode = VIsual_mode;
1647 		if (curwin->w_curswant == MAXCOL)
1648 		    resel_VIsual_vcol = MAXCOL;
1649 		else
1650 		{
1651 		    if (VIsual_mode != Ctrl_V)
1652 			getvvcol(curwin, &(oap->end),
1653 						  NULL, NULL, &oap->end_vcol);
1654 		    if (VIsual_mode == Ctrl_V || oap->line_count <= 1)
1655 		    {
1656 			if (VIsual_mode != Ctrl_V)
1657 			    getvvcol(curwin, &(oap->start),
1658 						&oap->start_vcol, NULL, NULL);
1659 			resel_VIsual_vcol = oap->end_vcol - oap->start_vcol + 1;
1660 		    }
1661 		    else
1662 			resel_VIsual_vcol = oap->end_vcol;
1663 		}
1664 		resel_VIsual_line_count = oap->line_count;
1665 	    }
1666 
1667 	    /* can't redo yank (unless 'y' is in 'cpoptions') and ":" */
1668 	    if ((vim_strchr(p_cpo, CPO_YANK) != NULL || oap->op_type != OP_YANK)
1669 		    && oap->op_type != OP_COLON
1670 #ifdef FEAT_FOLDING
1671 		    && oap->op_type != OP_FOLD
1672 		    && oap->op_type != OP_FOLDOPEN
1673 		    && oap->op_type != OP_FOLDOPENREC
1674 		    && oap->op_type != OP_FOLDCLOSE
1675 		    && oap->op_type != OP_FOLDCLOSEREC
1676 		    && oap->op_type != OP_FOLDDEL
1677 		    && oap->op_type != OP_FOLDDELREC
1678 #endif
1679 		    && oap->motion_force == NUL
1680 		    )
1681 	    {
1682 		/* Prepare for redoing.  Only use the nchar field for "r",
1683 		 * otherwise it might be the second char of the operator. */
1684 		if (cap->cmdchar == 'g' && (cap->nchar == 'n'
1685 							|| cap->nchar == 'N'))
1686 		    prep_redo(oap->regname, cap->count0,
1687 			    get_op_char(oap->op_type), get_extra_op_char(oap->op_type),
1688 			    oap->motion_force, cap->cmdchar, cap->nchar);
1689 		else if (cap->cmdchar != ':')
1690 		    prep_redo(oap->regname, 0L, NUL, 'v',
1691 					get_op_char(oap->op_type),
1692 					get_extra_op_char(oap->op_type),
1693 					oap->op_type == OP_REPLACE
1694 							  ? cap->nchar : NUL);
1695 		if (!redo_VIsual_busy)
1696 		{
1697 		    redo_VIsual_mode = resel_VIsual_mode;
1698 		    redo_VIsual_vcol = resel_VIsual_vcol;
1699 		    redo_VIsual_line_count = resel_VIsual_line_count;
1700 		    redo_VIsual_count = cap->count0;
1701 		}
1702 	    }
1703 
1704 	    /*
1705 	     * oap->inclusive defaults to TRUE.
1706 	     * If oap->end is on a NUL (empty line) oap->inclusive becomes
1707 	     * FALSE.  This makes "d}P" and "v}dP" work the same.
1708 	     */
1709 	    if (oap->motion_force == NUL || oap->motion_type == MLINE)
1710 		oap->inclusive = TRUE;
1711 	    if (VIsual_mode == 'V')
1712 		oap->motion_type = MLINE;
1713 	    else
1714 	    {
1715 		oap->motion_type = MCHAR;
1716 		if (VIsual_mode != Ctrl_V && *ml_get_pos(&(oap->end)) == NUL
1717 #ifdef FEAT_VIRTUALEDIT
1718 			&& (include_line_break || !virtual_op)
1719 #endif
1720 			)
1721 		{
1722 		    oap->inclusive = FALSE;
1723 		    /* Try to include the newline, unless it's an operator
1724 		     * that works on lines only. */
1725 		    if (*p_sel != 'o'
1726 			    && !op_on_lines(oap->op_type)
1727 			    && oap->end.lnum < curbuf->b_ml.ml_line_count)
1728 		    {
1729 			++oap->end.lnum;
1730 			oap->end.col = 0;
1731 #ifdef FEAT_VIRTUALEDIT
1732 			oap->end.coladd = 0;
1733 #endif
1734 			++oap->line_count;
1735 		    }
1736 		}
1737 	    }
1738 
1739 	    redo_VIsual_busy = FALSE;
1740 
1741 	    /*
1742 	     * Switch Visual off now, so screen updating does
1743 	     * not show inverted text when the screen is redrawn.
1744 	     * With OP_YANK and sometimes with OP_COLON and OP_FILTER there is
1745 	     * no screen redraw, so it is done here to remove the inverted
1746 	     * part.
1747 	     */
1748 	    if (!gui_yank)
1749 	    {
1750 		VIsual_active = FALSE;
1751 #ifdef FEAT_MOUSE
1752 		setmouse();
1753 		mouse_dragging = 0;
1754 #endif
1755 		if (mode_displayed)
1756 		    clear_cmdline = TRUE;   /* unshow visual mode later */
1757 #ifdef FEAT_CMDL_INFO
1758 		else
1759 		    clear_showcmd();
1760 #endif
1761 		if ((oap->op_type == OP_YANK
1762 			    || oap->op_type == OP_COLON
1763 			    || oap->op_type == OP_FUNCTION
1764 			    || oap->op_type == OP_FILTER)
1765 			&& oap->motion_force == NUL)
1766 		{
1767 #ifdef FEAT_LINEBREAK
1768 		    /* make sure redrawing is correct */
1769 		    curwin->w_p_lbr = lbr_saved;
1770 #endif
1771 		    redraw_curbuf_later(INVERTED);
1772 		}
1773 	    }
1774 	}
1775 
1776 #ifdef FEAT_MBYTE
1777 	/* Include the trailing byte of a multi-byte char. */
1778 	if (has_mbyte && oap->inclusive)
1779 	{
1780 	    int		l;
1781 
1782 	    l = (*mb_ptr2len)(ml_get_pos(&oap->end));
1783 	    if (l > 1)
1784 		oap->end.col += l - 1;
1785 	}
1786 #endif
1787 	curwin->w_set_curswant = TRUE;
1788 
1789 	/*
1790 	 * oap->empty is set when start and end are the same.  The inclusive
1791 	 * flag affects this too, unless yanking and the end is on a NUL.
1792 	 */
1793 	oap->empty = (oap->motion_type == MCHAR
1794 		    && (!oap->inclusive
1795 			|| (oap->op_type == OP_YANK
1796 			    && gchar_pos(&oap->end) == NUL))
1797 		    && equalpos(oap->start, oap->end)
1798 #ifdef FEAT_VIRTUALEDIT
1799 		    && !(virtual_op && oap->start.coladd != oap->end.coladd)
1800 #endif
1801 		    );
1802 	/*
1803 	 * For delete, change and yank, it's an error to operate on an
1804 	 * empty region, when 'E' included in 'cpoptions' (Vi compatible).
1805 	 */
1806 	empty_region_error = (oap->empty
1807 				&& vim_strchr(p_cpo, CPO_EMPTYREGION) != NULL);
1808 
1809 	/* Force a redraw when operating on an empty Visual region, when
1810 	 * 'modifiable is off or creating a fold. */
1811 	if (oap->is_VIsual && (oap->empty || !curbuf->b_p_ma
1812 #ifdef FEAT_FOLDING
1813 		    || oap->op_type == OP_FOLD
1814 #endif
1815 		    ))
1816 	{
1817 #ifdef FEAT_LINEBREAK
1818 	    curwin->w_p_lbr = lbr_saved;
1819 #endif
1820 	    redraw_curbuf_later(INVERTED);
1821 	}
1822 
1823 	/*
1824 	 * If the end of an operator is in column one while oap->motion_type
1825 	 * is MCHAR and oap->inclusive is FALSE, we put op_end after the last
1826 	 * character in the previous line. If op_start is on or before the
1827 	 * first non-blank in the line, the operator becomes linewise
1828 	 * (strange, but that's the way vi does it).
1829 	 */
1830 	if (	   oap->motion_type == MCHAR
1831 		&& oap->inclusive == FALSE
1832 		&& !(cap->retval & CA_NO_ADJ_OP_END)
1833 		&& oap->end.col == 0
1834 		&& (!oap->is_VIsual || *p_sel == 'o')
1835 		&& !oap->block_mode
1836 		&& oap->line_count > 1)
1837 	{
1838 	    oap->end_adjusted = TRUE;	    /* remember that we did this */
1839 	    --oap->line_count;
1840 	    --oap->end.lnum;
1841 	    if (inindent(0))
1842 		oap->motion_type = MLINE;
1843 	    else
1844 	    {
1845 		oap->end.col = (colnr_T)STRLEN(ml_get(oap->end.lnum));
1846 		if (oap->end.col)
1847 		{
1848 		    --oap->end.col;
1849 		    oap->inclusive = TRUE;
1850 		}
1851 	    }
1852 	}
1853 	else
1854 	    oap->end_adjusted = FALSE;
1855 
1856 	switch (oap->op_type)
1857 	{
1858 	case OP_LSHIFT:
1859 	case OP_RSHIFT:
1860 	    op_shift(oap, TRUE, oap->is_VIsual ? (int)cap->count1 : 1);
1861 	    auto_format(FALSE, TRUE);
1862 	    break;
1863 
1864 	case OP_JOIN_NS:
1865 	case OP_JOIN:
1866 	    if (oap->line_count < 2)
1867 		oap->line_count = 2;
1868 	    if (curwin->w_cursor.lnum + oap->line_count - 1 >
1869 						   curbuf->b_ml.ml_line_count)
1870 		beep_flush();
1871 	    else
1872 	    {
1873 		(void)do_join(oap->line_count, oap->op_type == OP_JOIN,
1874 							    TRUE, TRUE, TRUE);
1875 		auto_format(FALSE, TRUE);
1876 	    }
1877 	    break;
1878 
1879 	case OP_DELETE:
1880 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1881 	    if (empty_region_error)
1882 	    {
1883 		vim_beep(BO_OPER);
1884 		CancelRedo();
1885 	    }
1886 	    else
1887 	    {
1888 		(void)op_delete(oap);
1889 		if (oap->motion_type == MLINE && has_format_option(FO_AUTO))
1890 		    u_save_cursor();	    /* cursor line wasn't saved yet */
1891 		auto_format(FALSE, TRUE);
1892 	    }
1893 	    break;
1894 
1895 	case OP_YANK:
1896 	    if (empty_region_error)
1897 	    {
1898 		if (!gui_yank)
1899 		{
1900 		    vim_beep(BO_OPER);
1901 		    CancelRedo();
1902 		}
1903 	    }
1904 	    else
1905 	    {
1906 #ifdef FEAT_LINEBREAK
1907 		curwin->w_p_lbr = lbr_saved;
1908 #endif
1909 		(void)op_yank(oap, FALSE, !gui_yank);
1910 	    }
1911 	    check_cursor_col();
1912 	    break;
1913 
1914 	case OP_CHANGE:
1915 	    VIsual_reselect = FALSE;	    /* don't reselect now */
1916 	    if (empty_region_error)
1917 	    {
1918 		vim_beep(BO_OPER);
1919 		CancelRedo();
1920 	    }
1921 	    else
1922 	    {
1923 		/* This is a new edit command, not a restart.  Need to
1924 		 * remember it to make 'insertmode' work with mappings for
1925 		 * Visual mode.  But do this only once and not when typed and
1926 		 * 'insertmode' isn't set. */
1927 		if (p_im || !KeyTyped)
1928 		    restart_edit_save = restart_edit;
1929 		else
1930 		    restart_edit_save = 0;
1931 		restart_edit = 0;
1932 #ifdef FEAT_LINEBREAK
1933 		/* Restore linebreak, so that when the user edits it looks as
1934 		 * before. */
1935 		if (curwin->w_p_lbr != lbr_saved)
1936 		{
1937 		    curwin->w_p_lbr = lbr_saved;
1938 		    get_op_vcol(oap, redo_VIsual_mode, FALSE);
1939 		}
1940 #endif
1941 		/* Reset finish_op now, don't want it set inside edit(). */
1942 		finish_op = FALSE;
1943 		if (op_change(oap))	/* will call edit() */
1944 		    cap->retval |= CA_COMMAND_BUSY;
1945 		if (restart_edit == 0)
1946 		    restart_edit = restart_edit_save;
1947 	    }
1948 	    break;
1949 
1950 	case OP_FILTER:
1951 	    if (vim_strchr(p_cpo, CPO_FILTER) != NULL)
1952 		AppendToRedobuff((char_u *)"!\r");  /* use any last used !cmd */
1953 	    else
1954 		bangredo = TRUE;    /* do_bang() will put cmd in redo buffer */
1955 
1956 	case OP_INDENT:
1957 	case OP_COLON:
1958 
1959 #if defined(FEAT_LISP) || defined(FEAT_CINDENT)
1960 	    /*
1961 	     * If 'equalprg' is empty, do the indenting internally.
1962 	     */
1963 	    if (oap->op_type == OP_INDENT && *get_equalprg() == NUL)
1964 	    {
1965 # ifdef FEAT_LISP
1966 		if (curbuf->b_p_lisp)
1967 		{
1968 		    op_reindent(oap, get_lisp_indent);
1969 		    break;
1970 		}
1971 # endif
1972 # ifdef FEAT_CINDENT
1973 		op_reindent(oap,
1974 #  ifdef FEAT_EVAL
1975 			*curbuf->b_p_inde != NUL ? get_expr_indent :
1976 #  endif
1977 			    get_c_indent);
1978 		break;
1979 # endif
1980 	    }
1981 #endif
1982 
1983 	    op_colon(oap);
1984 	    break;
1985 
1986 	case OP_TILDE:
1987 	case OP_UPPER:
1988 	case OP_LOWER:
1989 	case OP_ROT13:
1990 	    if (empty_region_error)
1991 	    {
1992 		vim_beep(BO_OPER);
1993 		CancelRedo();
1994 	    }
1995 	    else
1996 		op_tilde(oap);
1997 	    check_cursor_col();
1998 	    break;
1999 
2000 	case OP_FORMAT:
2001 #if defined(FEAT_EVAL)
2002 	    if (*curbuf->b_p_fex != NUL)
2003 		op_formatexpr(oap);	/* use expression */
2004 	    else
2005 #endif
2006 		if (*p_fp != NUL)
2007 		op_colon(oap);		/* use external command */
2008 	    else
2009 		op_format(oap, FALSE);	/* use internal function */
2010 	    break;
2011 
2012 	case OP_FORMAT2:
2013 	    op_format(oap, TRUE);	/* use internal function */
2014 	    break;
2015 
2016 	case OP_FUNCTION:
2017 	    op_function(oap);		/* call 'operatorfunc' */
2018 	    break;
2019 
2020 	case OP_INSERT:
2021 	case OP_APPEND:
2022 	    VIsual_reselect = FALSE;	/* don't reselect now */
2023 #ifdef FEAT_VISUALEXTRA
2024 	    if (empty_region_error)
2025 	    {
2026 		vim_beep(BO_OPER);
2027 		CancelRedo();
2028 	    }
2029 	    else
2030 	    {
2031 		/* This is a new edit command, not a restart.  Need to
2032 		 * remember it to make 'insertmode' work with mappings for
2033 		 * Visual mode.  But do this only once. */
2034 		restart_edit_save = restart_edit;
2035 		restart_edit = 0;
2036 #ifdef FEAT_LINEBREAK
2037 		/* Restore linebreak, so that when the user edits it looks as
2038 		 * before. */
2039 		if (curwin->w_p_lbr != lbr_saved)
2040 		{
2041 		    curwin->w_p_lbr = lbr_saved;
2042 		    get_op_vcol(oap, redo_VIsual_mode, FALSE);
2043 		}
2044 #endif
2045 		op_insert(oap, cap->count1);
2046 #ifdef FEAT_LINEBREAK
2047 		/* Reset linebreak, so that formatting works correctly. */
2048 		curwin->w_p_lbr = FALSE;
2049 #endif
2050 
2051 		/* TODO: when inserting in several lines, should format all
2052 		 * the lines. */
2053 		auto_format(FALSE, TRUE);
2054 
2055 		if (restart_edit == 0)
2056 		    restart_edit = restart_edit_save;
2057 	    }
2058 #else
2059 	    vim_beep(BO_OPER);
2060 #endif
2061 	    break;
2062 
2063 	case OP_REPLACE:
2064 	    VIsual_reselect = FALSE;	/* don't reselect now */
2065 #ifdef FEAT_VISUALEXTRA
2066 	    if (empty_region_error)
2067 #endif
2068 	    {
2069 		vim_beep(BO_OPER);
2070 		CancelRedo();
2071 	    }
2072 #ifdef FEAT_VISUALEXTRA
2073 	    else
2074 	    {
2075 # ifdef FEAT_LINEBREAK
2076 		/* Restore linebreak, so that when the user edits it looks as
2077 		 * before. */
2078 		if (curwin->w_p_lbr != lbr_saved)
2079 		{
2080 		    curwin->w_p_lbr = lbr_saved;
2081 		    get_op_vcol(oap, redo_VIsual_mode, FALSE);
2082 		}
2083 # endif
2084 		op_replace(oap, cap->nchar);
2085 	    }
2086 #endif
2087 	    break;
2088 
2089 #ifdef FEAT_FOLDING
2090 	case OP_FOLD:
2091 	    VIsual_reselect = FALSE;	/* don't reselect now */
2092 	    foldCreate(oap->start.lnum, oap->end.lnum);
2093 	    break;
2094 
2095 	case OP_FOLDOPEN:
2096 	case OP_FOLDOPENREC:
2097 	case OP_FOLDCLOSE:
2098 	case OP_FOLDCLOSEREC:
2099 	    VIsual_reselect = FALSE;	/* don't reselect now */
2100 	    opFoldRange(oap->start.lnum, oap->end.lnum,
2101 		    oap->op_type == OP_FOLDOPEN
2102 					    || oap->op_type == OP_FOLDOPENREC,
2103 		    oap->op_type == OP_FOLDOPENREC
2104 					  || oap->op_type == OP_FOLDCLOSEREC,
2105 					  oap->is_VIsual);
2106 	    break;
2107 
2108 	case OP_FOLDDEL:
2109 	case OP_FOLDDELREC:
2110 	    VIsual_reselect = FALSE;	/* don't reselect now */
2111 	    deleteFold(oap->start.lnum, oap->end.lnum,
2112 			       oap->op_type == OP_FOLDDELREC, oap->is_VIsual);
2113 	    break;
2114 #endif
2115 	default:
2116 	    clearopbeep(oap);
2117 	}
2118 #ifdef FEAT_VIRTUALEDIT
2119 	virtual_op = MAYBE;
2120 #endif
2121 	if (!gui_yank)
2122 	{
2123 	    /*
2124 	     * if 'sol' not set, go back to old column for some commands
2125 	     */
2126 	    if (!p_sol && oap->motion_type == MLINE && !oap->end_adjusted
2127 		    && (oap->op_type == OP_LSHIFT || oap->op_type == OP_RSHIFT
2128 						|| oap->op_type == OP_DELETE))
2129 	    {
2130 #ifdef FEAT_LINEBREAK
2131 		curwin->w_p_lbr = FALSE;
2132 #endif
2133 		coladvance(curwin->w_curswant = old_col);
2134 	    }
2135 	}
2136 	else
2137 	{
2138 	    curwin->w_cursor = old_cursor;
2139 	}
2140 	oap->block_mode = FALSE;
2141 	clearop(oap);
2142     }
2143 #ifdef FEAT_LINEBREAK
2144     curwin->w_p_lbr = lbr_saved;
2145 #endif
2146 }
2147 
2148 /*
2149  * Handle indent and format operators and visual mode ":".
2150  */
2151     static void
2152 op_colon(oap)
2153     oparg_T	*oap;
2154 {
2155     stuffcharReadbuff(':');
2156     if (oap->is_VIsual)
2157 	stuffReadbuff((char_u *)"'<,'>");
2158     else
2159     {
2160 	/*
2161 	 * Make the range look nice, so it can be repeated.
2162 	 */
2163 	if (oap->start.lnum == curwin->w_cursor.lnum)
2164 	    stuffcharReadbuff('.');
2165 	else
2166 	    stuffnumReadbuff((long)oap->start.lnum);
2167 	if (oap->end.lnum != oap->start.lnum)
2168 	{
2169 	    stuffcharReadbuff(',');
2170 	    if (oap->end.lnum == curwin->w_cursor.lnum)
2171 		stuffcharReadbuff('.');
2172 	    else if (oap->end.lnum == curbuf->b_ml.ml_line_count)
2173 		stuffcharReadbuff('$');
2174 	    else if (oap->start.lnum == curwin->w_cursor.lnum)
2175 	    {
2176 		stuffReadbuff((char_u *)".+");
2177 		stuffnumReadbuff((long)oap->line_count - 1);
2178 	    }
2179 	    else
2180 		stuffnumReadbuff((long)oap->end.lnum);
2181 	}
2182     }
2183     if (oap->op_type != OP_COLON)
2184 	stuffReadbuff((char_u *)"!");
2185     if (oap->op_type == OP_INDENT)
2186     {
2187 #ifndef FEAT_CINDENT
2188 	if (*get_equalprg() == NUL)
2189 	    stuffReadbuff((char_u *)"indent");
2190 	else
2191 #endif
2192 	    stuffReadbuff(get_equalprg());
2193 	stuffReadbuff((char_u *)"\n");
2194     }
2195     else if (oap->op_type == OP_FORMAT)
2196     {
2197 	if (*p_fp == NUL)
2198 	    stuffReadbuff((char_u *)"fmt");
2199 	else
2200 	    stuffReadbuff(p_fp);
2201 	stuffReadbuff((char_u *)"\n']");
2202     }
2203 
2204     /*
2205      * do_cmdline() does the rest
2206      */
2207 }
2208 
2209 /*
2210  * Handle the "g@" operator: call 'operatorfunc'.
2211  */
2212     static void
2213 op_function(oap)
2214     oparg_T	*oap UNUSED;
2215 {
2216 #ifdef FEAT_EVAL
2217     char_u	*(argv[1]);
2218 # ifdef FEAT_VIRTUALEDIT
2219     int		save_virtual_op = virtual_op;
2220 # endif
2221 
2222     if (*p_opfunc == NUL)
2223 	EMSG(_("E774: 'operatorfunc' is empty"));
2224     else
2225     {
2226 	/* Set '[ and '] marks to text to be operated on. */
2227 	curbuf->b_op_start = oap->start;
2228 	curbuf->b_op_end = oap->end;
2229 	if (oap->motion_type != MLINE && !oap->inclusive)
2230 	    /* Exclude the end position. */
2231 	    decl(&curbuf->b_op_end);
2232 
2233 	if (oap->block_mode)
2234 	    argv[0] = (char_u *)"block";
2235 	else if (oap->motion_type == MLINE)
2236 	    argv[0] = (char_u *)"line";
2237 	else
2238 	    argv[0] = (char_u *)"char";
2239 
2240 # ifdef FEAT_VIRTUALEDIT
2241 	/* Reset virtual_op so that 'virtualedit' can be changed in the
2242 	 * function. */
2243 	virtual_op = MAYBE;
2244 # endif
2245 
2246 	(void)call_func_retnr(p_opfunc, 1, argv, FALSE);
2247 
2248 # ifdef FEAT_VIRTUALEDIT
2249 	virtual_op = save_virtual_op;
2250 # endif
2251     }
2252 #else
2253     EMSG(_("E775: Eval feature not available"));
2254 #endif
2255 }
2256 
2257 #if defined(FEAT_MOUSE) || defined(PROTO)
2258 /*
2259  * Do the appropriate action for the current mouse click in the current mode.
2260  * Not used for Command-line mode.
2261  *
2262  * Normal Mode:
2263  * event	 modi-	position      visual	   change   action
2264  *		 fier	cursor			   window
2265  * left press	  -	yes	    end		    yes
2266  * left press	  C	yes	    end		    yes	    "^]" (2)
2267  * left press	  S	yes	    end		    yes	    "*" (2)
2268  * left drag	  -	yes	start if moved	    no
2269  * left relse	  -	yes	start if moved	    no
2270  * middle press	  -	yes	 if not active	    no	    put register
2271  * middle press	  -	yes	 if active	    no	    yank and put
2272  * right press	  -	yes	start or extend	    yes
2273  * right press	  S	yes	no change	    yes	    "#" (2)
2274  * right drag	  -	yes	extend		    no
2275  * right relse	  -	yes	extend		    no
2276  *
2277  * Insert or Replace Mode:
2278  * event	 modi-	position      visual	   change   action
2279  *		 fier	cursor			   window
2280  * left press	  -	yes	(cannot be active)  yes
2281  * left press	  C	yes	(cannot be active)  yes	    "CTRL-O^]" (2)
2282  * left press	  S	yes	(cannot be active)  yes	    "CTRL-O*" (2)
2283  * left drag	  -	yes	start or extend (1) no	    CTRL-O (1)
2284  * left relse	  -	yes	start or extend (1) no	    CTRL-O (1)
2285  * middle press	  -	no	(cannot be active)  no	    put register
2286  * right press	  -	yes	start or extend	    yes	    CTRL-O
2287  * right press	  S	yes	(cannot be active)  yes	    "CTRL-O#" (2)
2288  *
2289  * (1) only if mouse pointer moved since press
2290  * (2) only if click is in same buffer
2291  *
2292  * Return TRUE if start_arrow() should be called for edit mode.
2293  */
2294     int
2295 do_mouse(oap, c, dir, count, fixindent)
2296     oparg_T	*oap;		/* operator argument, can be NULL */
2297     int		c;		/* K_LEFTMOUSE, etc */
2298     int		dir;		/* Direction to 'put' if necessary */
2299     long	count;
2300     int		fixindent;	/* PUT_FIXINDENT if fixing indent necessary */
2301 {
2302     static int	do_always = FALSE;	/* ignore 'mouse' setting next time */
2303     static int	got_click = FALSE;	/* got a click some time back */
2304 
2305     int		which_button;	/* MOUSE_LEFT, _MIDDLE or _RIGHT */
2306     int		is_click;	/* If FALSE it's a drag or release event */
2307     int		is_drag;	/* If TRUE it's a drag event */
2308     int		jump_flags = 0;	/* flags for jump_to_mouse() */
2309     pos_T	start_visual;
2310     int		moved;		/* Has cursor moved? */
2311     int		in_status_line;	/* mouse in status line */
2312 #ifdef FEAT_WINDOWS
2313     static int	in_tab_line = FALSE; /* mouse clicked in tab line */
2314 #endif
2315 #ifdef FEAT_VERTSPLIT
2316     int		in_sep_line;	/* mouse in vertical separator line */
2317 #endif
2318     int		c1, c2;
2319 #if defined(FEAT_FOLDING)
2320     pos_T	save_cursor;
2321 #endif
2322     win_T	*old_curwin = curwin;
2323     static pos_T orig_cursor;
2324     colnr_T	leftcol, rightcol;
2325     pos_T	end_visual;
2326     int		diff;
2327     int		old_active = VIsual_active;
2328     int		old_mode = VIsual_mode;
2329     int		regname;
2330 
2331 #if defined(FEAT_FOLDING)
2332     save_cursor = curwin->w_cursor;
2333 #endif
2334 
2335     /*
2336      * When GUI is active, always recognize mouse events, otherwise:
2337      * - Ignore mouse event in normal mode if 'mouse' doesn't include 'n'.
2338      * - Ignore mouse event in visual mode if 'mouse' doesn't include 'v'.
2339      * - For command line and insert mode 'mouse' is checked before calling
2340      *	 do_mouse().
2341      */
2342     if (do_always)
2343 	do_always = FALSE;
2344     else
2345 #ifdef FEAT_GUI
2346 	if (!gui.in_use)
2347 #endif
2348 	{
2349 	    if (VIsual_active)
2350 	    {
2351 		if (!mouse_has(MOUSE_VISUAL))
2352 		    return FALSE;
2353 	    }
2354 	    else if (State == NORMAL && !mouse_has(MOUSE_NORMAL))
2355 		return FALSE;
2356 	}
2357 
2358     for (;;)
2359     {
2360 	which_button = get_mouse_button(KEY2TERMCAP1(c), &is_click, &is_drag);
2361 	if (is_drag)
2362 	{
2363 	    /* If the next character is the same mouse event then use that
2364 	     * one. Speeds up dragging the status line. */
2365 	    if (vpeekc() != NUL)
2366 	    {
2367 		int nc;
2368 		int save_mouse_row = mouse_row;
2369 		int save_mouse_col = mouse_col;
2370 
2371 		/* Need to get the character, peeking doesn't get the actual
2372 		 * one. */
2373 		nc = safe_vgetc();
2374 		if (c == nc)
2375 		    continue;
2376 		vungetc(nc);
2377 		mouse_row = save_mouse_row;
2378 		mouse_col = save_mouse_col;
2379 	    }
2380 	}
2381 	break;
2382     }
2383 
2384 #ifdef FEAT_MOUSESHAPE
2385     /* May have stopped dragging the status or separator line.  The pointer is
2386      * most likely still on the status or separator line. */
2387     if (!is_drag && drag_status_line)
2388     {
2389 	drag_status_line = FALSE;
2390 	update_mouseshape(SHAPE_IDX_STATUS);
2391     }
2392 # ifdef FEAT_VERTSPLIT
2393     if (!is_drag && drag_sep_line)
2394     {
2395 	drag_sep_line = FALSE;
2396 	update_mouseshape(SHAPE_IDX_VSEP);
2397     }
2398 # endif
2399 #endif
2400 
2401     /*
2402      * Ignore drag and release events if we didn't get a click.
2403      */
2404     if (is_click)
2405 	got_click = TRUE;
2406     else
2407     {
2408 	if (!got_click)			/* didn't get click, ignore */
2409 	    return FALSE;
2410 	if (!is_drag)			/* release, reset got_click */
2411 	{
2412 	    got_click = FALSE;
2413 #ifdef FEAT_WINDOWS
2414 	    if (in_tab_line)
2415 	    {
2416 		in_tab_line = FALSE;
2417 		return FALSE;
2418 	    }
2419 #endif
2420 	}
2421     }
2422 
2423     /*
2424      * CTRL right mouse button does CTRL-T
2425      */
2426     if (is_click && (mod_mask & MOD_MASK_CTRL) && which_button == MOUSE_RIGHT)
2427     {
2428 	if (State & INSERT)
2429 	    stuffcharReadbuff(Ctrl_O);
2430 	if (count > 1)
2431 	    stuffnumReadbuff(count);
2432 	stuffcharReadbuff(Ctrl_T);
2433 	got_click = FALSE;		/* ignore drag&release now */
2434 	return FALSE;
2435     }
2436 
2437     /*
2438      * CTRL only works with left mouse button
2439      */
2440     if ((mod_mask & MOD_MASK_CTRL) && which_button != MOUSE_LEFT)
2441 	return FALSE;
2442 
2443     /*
2444      * When a modifier is down, ignore drag and release events, as well as
2445      * multiple clicks and the middle mouse button.
2446      * Accept shift-leftmouse drags when 'mousemodel' is "popup.*".
2447      */
2448     if ((mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL | MOD_MASK_ALT
2449 							     | MOD_MASK_META))
2450 	    && (!is_click
2451 		|| (mod_mask & MOD_MASK_MULTI_CLICK)
2452 		|| which_button == MOUSE_MIDDLE)
2453 	    && !((mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT))
2454 		&& mouse_model_popup()
2455 		&& which_button == MOUSE_LEFT)
2456 	    && !((mod_mask & MOD_MASK_ALT)
2457 		&& !mouse_model_popup()
2458 		&& which_button == MOUSE_RIGHT)
2459 	    )
2460 	return FALSE;
2461 
2462     /*
2463      * If the button press was used as the movement command for an operator
2464      * (eg "d<MOUSE>"), or it is the middle button that is held down, ignore
2465      * drag/release events.
2466      */
2467     if (!is_click && which_button == MOUSE_MIDDLE)
2468 	return FALSE;
2469 
2470     if (oap != NULL)
2471 	regname = oap->regname;
2472     else
2473 	regname = 0;
2474 
2475     /*
2476      * Middle mouse button does a 'put' of the selected text
2477      */
2478     if (which_button == MOUSE_MIDDLE)
2479     {
2480 	if (State == NORMAL)
2481 	{
2482 	    /*
2483 	     * If an operator was pending, we don't know what the user wanted
2484 	     * to do. Go back to normal mode: Clear the operator and beep().
2485 	     */
2486 	    if (oap != NULL && oap->op_type != OP_NOP)
2487 	    {
2488 		clearopbeep(oap);
2489 		return FALSE;
2490 	    }
2491 
2492 	    /*
2493 	     * If visual was active, yank the highlighted text and put it
2494 	     * before the mouse pointer position.
2495 	     * In Select mode replace the highlighted text with the clipboard.
2496 	     */
2497 	    if (VIsual_active)
2498 	    {
2499 		if (VIsual_select)
2500 		{
2501 		    stuffcharReadbuff(Ctrl_G);
2502 		    stuffReadbuff((char_u *)"\"+p");
2503 		}
2504 		else
2505 		{
2506 		    stuffcharReadbuff('y');
2507 		    stuffcharReadbuff(K_MIDDLEMOUSE);
2508 		}
2509 		do_always = TRUE;	/* ignore 'mouse' setting next time */
2510 		return FALSE;
2511 	    }
2512 	    /*
2513 	     * The rest is below jump_to_mouse()
2514 	     */
2515 	}
2516 
2517 	else if ((State & INSERT) == 0)
2518 	    return FALSE;
2519 
2520 	/*
2521 	 * Middle click in insert mode doesn't move the mouse, just insert the
2522 	 * contents of a register.  '.' register is special, can't insert that
2523 	 * with do_put().
2524 	 * Also paste at the cursor if the current mode isn't in 'mouse' (only
2525 	 * happens for the GUI).
2526 	 */
2527 	if ((State & INSERT) || !mouse_has(MOUSE_NORMAL))
2528 	{
2529 	    if (regname == '.')
2530 		insert_reg(regname, TRUE);
2531 	    else
2532 	    {
2533 #ifdef FEAT_CLIPBOARD
2534 		if (clip_star.available && regname == 0)
2535 		    regname = '*';
2536 #endif
2537 		if ((State & REPLACE_FLAG) && !yank_register_mline(regname))
2538 		    insert_reg(regname, TRUE);
2539 		else
2540 		{
2541 		    do_put(regname, BACKWARD, 1L, fixindent | PUT_CURSEND);
2542 
2543 		    /* Repeat it with CTRL-R CTRL-O r or CTRL-R CTRL-P r */
2544 		    AppendCharToRedobuff(Ctrl_R);
2545 		    AppendCharToRedobuff(fixindent ? Ctrl_P : Ctrl_O);
2546 		    AppendCharToRedobuff(regname == 0 ? '"' : regname);
2547 		}
2548 	    }
2549 	    return FALSE;
2550 	}
2551     }
2552 
2553     /* When dragging or button-up stay in the same window. */
2554     if (!is_click)
2555 	jump_flags |= MOUSE_FOCUS | MOUSE_DID_MOVE;
2556 
2557     start_visual.lnum = 0;
2558 
2559 #ifdef FEAT_WINDOWS
2560     /* Check for clicking in the tab page line. */
2561     if (mouse_row == 0 && firstwin->w_winrow > 0)
2562     {
2563 	if (is_drag)
2564 	{
2565 	    if (in_tab_line)
2566 	    {
2567 		c1 = TabPageIdxs[mouse_col];
2568 		tabpage_move(c1 <= 0 ? 9999 : c1 - 1);
2569 	    }
2570 	    return FALSE;
2571 	}
2572 
2573 	/* click in a tab selects that tab page */
2574 	if (is_click
2575 # ifdef FEAT_CMDWIN
2576 		&& cmdwin_type == 0
2577 # endif
2578 		&& mouse_col < Columns)
2579 	{
2580 	    in_tab_line = TRUE;
2581 	    c1 = TabPageIdxs[mouse_col];
2582 	    if (c1 >= 0)
2583 	    {
2584 		if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2585 		{
2586 		    /* double click opens new page */
2587 		    end_visual_mode();
2588 		    tabpage_new();
2589 		    tabpage_move(c1 == 0 ? 9999 : c1 - 1);
2590 		}
2591 		else
2592 		{
2593 		    /* Go to specified tab page, or next one if not clicking
2594 		     * on a label. */
2595 		    goto_tabpage(c1);
2596 
2597 		    /* It's like clicking on the status line of a window. */
2598 		    if (curwin != old_curwin)
2599 			end_visual_mode();
2600 		}
2601 	    }
2602 	    else if (c1 < 0)
2603 	    {
2604 		tabpage_T	*tp;
2605 
2606 		/* Close the current or specified tab page. */
2607 		if (c1 == -999)
2608 		    tp = curtab;
2609 		else
2610 		    tp = find_tabpage(-c1);
2611 		if (tp == curtab)
2612 		{
2613 		    if (first_tabpage->tp_next != NULL)
2614 			tabpage_close(FALSE);
2615 		}
2616 		else if (tp != NULL)
2617 		    tabpage_close_other(tp, FALSE);
2618 	    }
2619 	}
2620 	return TRUE;
2621     }
2622     else if (is_drag && in_tab_line)
2623     {
2624 	c1 = TabPageIdxs[mouse_col];
2625 	tabpage_move(c1 <= 0 ? 9999 : c1 - 1);
2626 	return FALSE;
2627     }
2628 
2629 #endif
2630 
2631     /*
2632      * When 'mousemodel' is "popup" or "popup_setpos", translate mouse events:
2633      * right button up   -> pop-up menu
2634      * shift-left button -> right button
2635      * alt-left button   -> alt-right button
2636      */
2637     if (mouse_model_popup())
2638     {
2639 	if (which_button == MOUSE_RIGHT
2640 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2641 	{
2642 	    /*
2643 	     * NOTE: Ignore right button down and drag mouse events.
2644 	     * Windows only shows the popup menu on the button up event.
2645 	     */
2646 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) \
2647 			  || defined(FEAT_GUI_PHOTON) || defined(FEAT_GUI_MAC)
2648 	    if (!is_click)
2649 		return FALSE;
2650 #endif
2651 #if defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN)
2652 	    if (is_click || is_drag)
2653 		return FALSE;
2654 #endif
2655 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) \
2656 	    || defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \
2657 	    || defined(FEAT_GUI_MAC) || defined(FEAT_GUI_PHOTON)
2658 	    if (gui.in_use)
2659 	    {
2660 		jump_flags = 0;
2661 		if (STRCMP(p_mousem, "popup_setpos") == 0)
2662 		{
2663 		    /* First set the cursor position before showing the popup
2664 		     * menu. */
2665 		    if (VIsual_active)
2666 		    {
2667 			pos_T    m_pos;
2668 
2669 			/*
2670 			 * set MOUSE_MAY_STOP_VIS if we are outside the
2671 			 * selection or the current window (might have false
2672 			 * negative here)
2673 			 */
2674 			if (mouse_row < W_WINROW(curwin)
2675 			     || mouse_row
2676 				      > (W_WINROW(curwin) + curwin->w_height))
2677 			    jump_flags = MOUSE_MAY_STOP_VIS;
2678 			else if (get_fpos_of_mouse(&m_pos) != IN_BUFFER)
2679 			    jump_flags = MOUSE_MAY_STOP_VIS;
2680 			else
2681 			{
2682 			    if ((lt(curwin->w_cursor, VIsual)
2683 					&& (lt(m_pos, curwin->w_cursor)
2684 					    || lt(VIsual, m_pos)))
2685 				    || (lt(VIsual, curwin->w_cursor)
2686 					&& (lt(m_pos, VIsual)
2687 					    || lt(curwin->w_cursor, m_pos))))
2688 			    {
2689 				jump_flags = MOUSE_MAY_STOP_VIS;
2690 			    }
2691 			    else if (VIsual_mode == Ctrl_V)
2692 			    {
2693 				getvcols(curwin, &curwin->w_cursor, &VIsual,
2694 							 &leftcol, &rightcol);
2695 				getvcol(curwin, &m_pos, NULL, &m_pos.col, NULL);
2696 				if (m_pos.col < leftcol || m_pos.col > rightcol)
2697 				    jump_flags = MOUSE_MAY_STOP_VIS;
2698 			    }
2699 			}
2700 		    }
2701 		    else
2702 			jump_flags = MOUSE_MAY_STOP_VIS;
2703 		}
2704 		if (jump_flags)
2705 		{
2706 		    jump_flags = jump_to_mouse(jump_flags, NULL, which_button);
2707 		    update_curbuf(VIsual_active ? INVERTED : VALID);
2708 		    setcursor();
2709 		    out_flush();    /* Update before showing popup menu */
2710 		}
2711 # ifdef FEAT_MENU
2712 		gui_show_popupmenu();
2713 # endif
2714 		return (jump_flags & CURSOR_MOVED) != 0;
2715 	    }
2716 	    else
2717 		return FALSE;
2718 #else
2719 	    return FALSE;
2720 #endif
2721 	}
2722 	if (which_button == MOUSE_LEFT
2723 				&& (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_ALT)))
2724 	{
2725 	    which_button = MOUSE_RIGHT;
2726 	    mod_mask &= ~MOD_MASK_SHIFT;
2727 	}
2728     }
2729 
2730     if ((State & (NORMAL | INSERT))
2731 			    && !(mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL)))
2732     {
2733 	if (which_button == MOUSE_LEFT)
2734 	{
2735 	    if (is_click)
2736 	    {
2737 		/* stop Visual mode for a left click in a window, but not when
2738 		 * on a status line */
2739 		if (VIsual_active)
2740 		    jump_flags |= MOUSE_MAY_STOP_VIS;
2741 	    }
2742 	    else if (mouse_has(MOUSE_VISUAL))
2743 		jump_flags |= MOUSE_MAY_VIS;
2744 	}
2745 	else if (which_button == MOUSE_RIGHT)
2746 	{
2747 	    if (is_click && VIsual_active)
2748 	    {
2749 		/*
2750 		 * Remember the start and end of visual before moving the
2751 		 * cursor.
2752 		 */
2753 		if (lt(curwin->w_cursor, VIsual))
2754 		{
2755 		    start_visual = curwin->w_cursor;
2756 		    end_visual = VIsual;
2757 		}
2758 		else
2759 		{
2760 		    start_visual = VIsual;
2761 		    end_visual = curwin->w_cursor;
2762 		}
2763 	    }
2764 	    jump_flags |= MOUSE_FOCUS;
2765 	    if (mouse_has(MOUSE_VISUAL))
2766 		jump_flags |= MOUSE_MAY_VIS;
2767 	}
2768     }
2769 
2770     /*
2771      * If an operator is pending, ignore all drags and releases until the
2772      * next mouse click.
2773      */
2774     if (!is_drag && oap != NULL && oap->op_type != OP_NOP)
2775     {
2776 	got_click = FALSE;
2777 	oap->motion_type = MCHAR;
2778     }
2779 
2780     /* When releasing the button let jump_to_mouse() know. */
2781     if (!is_click && !is_drag)
2782 	jump_flags |= MOUSE_RELEASED;
2783 
2784     /*
2785      * JUMP!
2786      */
2787     jump_flags = jump_to_mouse(jump_flags,
2788 			oap == NULL ? NULL : &(oap->inclusive), which_button);
2789     moved = (jump_flags & CURSOR_MOVED);
2790     in_status_line = (jump_flags & IN_STATUS_LINE);
2791 #ifdef FEAT_VERTSPLIT
2792     in_sep_line = (jump_flags & IN_SEP_LINE);
2793 #endif
2794 
2795 #ifdef FEAT_NETBEANS_INTG
2796     if (isNetbeansBuffer(curbuf)
2797 			    && !(jump_flags & (IN_STATUS_LINE | IN_SEP_LINE)))
2798     {
2799 	int key = KEY2TERMCAP1(c);
2800 
2801 	if (key == (int)KE_LEFTRELEASE || key == (int)KE_MIDDLERELEASE
2802 					       || key == (int)KE_RIGHTRELEASE)
2803 	    netbeans_button_release(which_button);
2804     }
2805 #endif
2806 
2807     /* When jumping to another window, clear a pending operator.  That's a bit
2808      * friendlier than beeping and not jumping to that window. */
2809     if (curwin != old_curwin && oap != NULL && oap->op_type != OP_NOP)
2810 	clearop(oap);
2811 
2812 #ifdef FEAT_FOLDING
2813     if (mod_mask == 0
2814 	    && !is_drag
2815 	    && (jump_flags & (MOUSE_FOLD_CLOSE | MOUSE_FOLD_OPEN))
2816 	    && which_button == MOUSE_LEFT)
2817     {
2818 	/* open or close a fold at this line */
2819 	if (jump_flags & MOUSE_FOLD_OPEN)
2820 	    openFold(curwin->w_cursor.lnum, 1L);
2821 	else
2822 	    closeFold(curwin->w_cursor.lnum, 1L);
2823 	/* don't move the cursor if still in the same window */
2824 	if (curwin == old_curwin)
2825 	    curwin->w_cursor = save_cursor;
2826     }
2827 #endif
2828 
2829 #if defined(FEAT_CLIPBOARD) && defined(FEAT_CMDWIN)
2830     if ((jump_flags & IN_OTHER_WIN) && !VIsual_active && clip_star.available)
2831     {
2832 	clip_modeless(which_button, is_click, is_drag);
2833 	return FALSE;
2834     }
2835 #endif
2836 
2837     /* Set global flag that we are extending the Visual area with mouse
2838      * dragging; temporarily minimize 'scrolloff'. */
2839     if (VIsual_active && is_drag && p_so)
2840     {
2841 	/* In the very first line, allow scrolling one line */
2842 	if (mouse_row == 0)
2843 	    mouse_dragging = 2;
2844 	else
2845 	    mouse_dragging = 1;
2846     }
2847 
2848     /* When dragging the mouse above the window, scroll down. */
2849     if (is_drag && mouse_row < 0 && !in_status_line)
2850     {
2851 	scroll_redraw(FALSE, 1L);
2852 	mouse_row = 0;
2853     }
2854 
2855     if (start_visual.lnum)		/* right click in visual mode */
2856     {
2857        /* When ALT is pressed make Visual mode blockwise. */
2858        if (mod_mask & MOD_MASK_ALT)
2859 	   VIsual_mode = Ctrl_V;
2860 
2861 	/*
2862 	 * In Visual-block mode, divide the area in four, pick up the corner
2863 	 * that is in the quarter that the cursor is in.
2864 	 */
2865 	if (VIsual_mode == Ctrl_V)
2866 	{
2867 	    getvcols(curwin, &start_visual, &end_visual, &leftcol, &rightcol);
2868 	    if (curwin->w_curswant > (leftcol + rightcol) / 2)
2869 		end_visual.col = leftcol;
2870 	    else
2871 		end_visual.col = rightcol;
2872 	    if (curwin->w_cursor.lnum <
2873 				    (start_visual.lnum + end_visual.lnum) / 2)
2874 		end_visual.lnum = end_visual.lnum;
2875 	    else
2876 		end_visual.lnum = start_visual.lnum;
2877 
2878 	    /* move VIsual to the right column */
2879 	    start_visual = curwin->w_cursor;	    /* save the cursor pos */
2880 	    curwin->w_cursor = end_visual;
2881 	    coladvance(end_visual.col);
2882 	    VIsual = curwin->w_cursor;
2883 	    curwin->w_cursor = start_visual;	    /* restore the cursor */
2884 	}
2885 	else
2886 	{
2887 	    /*
2888 	     * If the click is before the start of visual, change the start.
2889 	     * If the click is after the end of visual, change the end.  If
2890 	     * the click is inside the visual, change the closest side.
2891 	     */
2892 	    if (lt(curwin->w_cursor, start_visual))
2893 		VIsual = end_visual;
2894 	    else if (lt(end_visual, curwin->w_cursor))
2895 		VIsual = start_visual;
2896 	    else
2897 	    {
2898 		/* In the same line, compare column number */
2899 		if (end_visual.lnum == start_visual.lnum)
2900 		{
2901 		    if (curwin->w_cursor.col - start_visual.col >
2902 				    end_visual.col - curwin->w_cursor.col)
2903 			VIsual = start_visual;
2904 		    else
2905 			VIsual = end_visual;
2906 		}
2907 
2908 		/* In different lines, compare line number */
2909 		else
2910 		{
2911 		    diff = (curwin->w_cursor.lnum - start_visual.lnum) -
2912 				(end_visual.lnum - curwin->w_cursor.lnum);
2913 
2914 		    if (diff > 0)		/* closest to end */
2915 			VIsual = start_visual;
2916 		    else if (diff < 0)	/* closest to start */
2917 			VIsual = end_visual;
2918 		    else			/* in the middle line */
2919 		    {
2920 			if (curwin->w_cursor.col <
2921 					(start_visual.col + end_visual.col) / 2)
2922 			    VIsual = end_visual;
2923 			else
2924 			    VIsual = start_visual;
2925 		    }
2926 		}
2927 	    }
2928 	}
2929     }
2930     /*
2931      * If Visual mode started in insert mode, execute "CTRL-O"
2932      */
2933     else if ((State & INSERT) && VIsual_active)
2934 	stuffcharReadbuff(Ctrl_O);
2935 
2936     /*
2937      * Middle mouse click: Put text before cursor.
2938      */
2939     if (which_button == MOUSE_MIDDLE)
2940     {
2941 #ifdef FEAT_CLIPBOARD
2942 	if (clip_star.available && regname == 0)
2943 	    regname = '*';
2944 #endif
2945 	if (yank_register_mline(regname))
2946 	{
2947 	    if (mouse_past_bottom)
2948 		dir = FORWARD;
2949 	}
2950 	else if (mouse_past_eol)
2951 	    dir = FORWARD;
2952 
2953 	if (fixindent)
2954 	{
2955 	    c1 = (dir == BACKWARD) ? '[' : ']';
2956 	    c2 = 'p';
2957 	}
2958 	else
2959 	{
2960 	    c1 = (dir == FORWARD) ? 'p' : 'P';
2961 	    c2 = NUL;
2962 	}
2963 	prep_redo(regname, count, NUL, c1, NUL, c2, NUL);
2964 
2965 	/*
2966 	 * Remember where the paste started, so in edit() Insstart can be set
2967 	 * to this position
2968 	 */
2969 	if (restart_edit != 0)
2970 	    where_paste_started = curwin->w_cursor;
2971 	do_put(regname, dir, count, fixindent | PUT_CURSEND);
2972     }
2973 
2974 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2975     /*
2976      * Ctrl-Mouse click or double click in a quickfix window jumps to the
2977      * error under the mouse pointer.
2978      */
2979     else if (((mod_mask & MOD_MASK_CTRL)
2980 		|| (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
2981 	    && bt_quickfix(curbuf))
2982     {
2983 	if (State & INSERT)
2984 	    stuffcharReadbuff(Ctrl_O);
2985 	if (curwin->w_llist_ref == NULL)	/* quickfix window */
2986 	    stuffReadbuff((char_u *)":.cc\n");
2987 	else					/* location list window */
2988 	    stuffReadbuff((char_u *)":.ll\n");
2989 	got_click = FALSE;		/* ignore drag&release now */
2990     }
2991 #endif
2992 
2993     /*
2994      * Ctrl-Mouse click (or double click in a help window) jumps to the tag
2995      * under the mouse pointer.
2996      */
2997     else if ((mod_mask & MOD_MASK_CTRL) || (curbuf->b_help
2998 		     && (mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK))
2999     {
3000 	if (State & INSERT)
3001 	    stuffcharReadbuff(Ctrl_O);
3002 	stuffcharReadbuff(Ctrl_RSB);
3003 	got_click = FALSE;		/* ignore drag&release now */
3004     }
3005 
3006     /*
3007      * Shift-Mouse click searches for the next occurrence of the word under
3008      * the mouse pointer
3009      */
3010     else if ((mod_mask & MOD_MASK_SHIFT))
3011     {
3012 	if ((State & INSERT) || (VIsual_active && VIsual_select))
3013 	    stuffcharReadbuff(Ctrl_O);
3014 	if (which_button == MOUSE_LEFT)
3015 	    stuffcharReadbuff('*');
3016 	else	/* MOUSE_RIGHT */
3017 	    stuffcharReadbuff('#');
3018     }
3019 
3020     /* Handle double clicks, unless on status line */
3021     else if (in_status_line)
3022     {
3023 #ifdef FEAT_MOUSESHAPE
3024 	if ((is_drag || is_click) && !drag_status_line)
3025 	{
3026 	    drag_status_line = TRUE;
3027 	    update_mouseshape(-1);
3028 	}
3029 #endif
3030     }
3031 #ifdef FEAT_VERTSPLIT
3032     else if (in_sep_line)
3033     {
3034 # ifdef FEAT_MOUSESHAPE
3035 	if ((is_drag || is_click) && !drag_sep_line)
3036 	{
3037 	    drag_sep_line = TRUE;
3038 	    update_mouseshape(-1);
3039 	}
3040 # endif
3041     }
3042 #endif
3043     else if ((mod_mask & MOD_MASK_MULTI_CLICK) && (State & (NORMAL | INSERT))
3044 	     && mouse_has(MOUSE_VISUAL))
3045     {
3046 	if (is_click || !VIsual_active)
3047 	{
3048 	    if (VIsual_active)
3049 		orig_cursor = VIsual;
3050 	    else
3051 	    {
3052 		check_visual_highlight();
3053 		VIsual = curwin->w_cursor;
3054 		orig_cursor = VIsual;
3055 		VIsual_active = TRUE;
3056 		VIsual_reselect = TRUE;
3057 		/* start Select mode if 'selectmode' contains "mouse" */
3058 		may_start_select('o');
3059 		setmouse();
3060 	    }
3061 	    if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
3062 	    {
3063 		/* Double click with ALT pressed makes it blockwise. */
3064 		if (mod_mask & MOD_MASK_ALT)
3065 		    VIsual_mode = Ctrl_V;
3066 		else
3067 		    VIsual_mode = 'v';
3068 	    }
3069 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_3CLICK)
3070 		VIsual_mode = 'V';
3071 	    else if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_4CLICK)
3072 		VIsual_mode = Ctrl_V;
3073 #ifdef FEAT_CLIPBOARD
3074 	    /* Make sure the clipboard gets updated.  Needed because start and
3075 	     * end may still be the same, and the selection needs to be owned */
3076 	    clip_star.vmode = NUL;
3077 #endif
3078 	}
3079 	/*
3080 	 * A double click selects a word or a block.
3081 	 */
3082 	if ((mod_mask & MOD_MASK_MULTI_CLICK) == MOD_MASK_2CLICK)
3083 	{
3084 	    pos_T	*pos = NULL;
3085 	    int		gc;
3086 
3087 	    if (is_click)
3088 	    {
3089 		/* If the character under the cursor (skipping white space) is
3090 		 * not a word character, try finding a match and select a (),
3091 		 * {}, [], #if/#endif, etc. block. */
3092 		end_visual = curwin->w_cursor;
3093 		while (gc = gchar_pos(&end_visual), vim_iswhite(gc))
3094 		    inc(&end_visual);
3095 		if (oap != NULL)
3096 		    oap->motion_type = MCHAR;
3097 		if (oap != NULL
3098 			&& VIsual_mode == 'v'
3099 			&& !vim_iswordc(gchar_pos(&end_visual))
3100 			&& equalpos(curwin->w_cursor, VIsual)
3101 			&& (pos = findmatch(oap, NUL)) != NULL)
3102 		{
3103 		    curwin->w_cursor = *pos;
3104 		    if (oap->motion_type == MLINE)
3105 			VIsual_mode = 'V';
3106 		    else if (*p_sel == 'e')
3107 		    {
3108 			if (lt(curwin->w_cursor, VIsual))
3109 			    ++VIsual.col;
3110 			else
3111 			    ++curwin->w_cursor.col;
3112 		    }
3113 		}
3114 	    }
3115 
3116 	    if (pos == NULL && (is_click || is_drag))
3117 	    {
3118 		/* When not found a match or when dragging: extend to include
3119 		 * a word. */
3120 		if (lt(curwin->w_cursor, orig_cursor))
3121 		{
3122 		    find_start_of_word(&curwin->w_cursor);
3123 		    find_end_of_word(&VIsual);
3124 		}
3125 		else
3126 		{
3127 		    find_start_of_word(&VIsual);
3128 		    if (*p_sel == 'e' && *ml_get_cursor() != NUL)
3129 #ifdef FEAT_MBYTE
3130 			curwin->w_cursor.col +=
3131 					 (*mb_ptr2len)(ml_get_cursor());
3132 #else
3133 			++curwin->w_cursor.col;
3134 #endif
3135 		    find_end_of_word(&curwin->w_cursor);
3136 		}
3137 	    }
3138 	    curwin->w_set_curswant = TRUE;
3139 	}
3140 	if (is_click)
3141 	    redraw_curbuf_later(INVERTED);	/* update the inversion */
3142     }
3143     else if (VIsual_active && !old_active)
3144     {
3145 	if (mod_mask & MOD_MASK_ALT)
3146 	    VIsual_mode = Ctrl_V;
3147 	else
3148 	    VIsual_mode = 'v';
3149     }
3150 
3151     /* If Visual mode changed show it later. */
3152     if ((!VIsual_active && old_active && mode_displayed)
3153 	    || (VIsual_active && p_smd && msg_silent == 0
3154 				 && (!old_active || VIsual_mode != old_mode)))
3155 	redraw_cmdline = TRUE;
3156 
3157     return moved;
3158 }
3159 
3160 /*
3161  * Move "pos" back to the start of the word it's in.
3162  */
3163     static void
3164 find_start_of_word(pos)
3165     pos_T	*pos;
3166 {
3167     char_u	*line;
3168     int		cclass;
3169     int		col;
3170 
3171     line = ml_get(pos->lnum);
3172     cclass = get_mouse_class(line + pos->col);
3173 
3174     while (pos->col > 0)
3175     {
3176 	col = pos->col - 1;
3177 #ifdef FEAT_MBYTE
3178 	col -= (*mb_head_off)(line, line + col);
3179 #endif
3180 	if (get_mouse_class(line + col) != cclass)
3181 	    break;
3182 	pos->col = col;
3183     }
3184 }
3185 
3186 /*
3187  * Move "pos" forward to the end of the word it's in.
3188  * When 'selection' is "exclusive", the position is just after the word.
3189  */
3190     static void
3191 find_end_of_word(pos)
3192     pos_T	*pos;
3193 {
3194     char_u	*line;
3195     int		cclass;
3196     int		col;
3197 
3198     line = ml_get(pos->lnum);
3199     if (*p_sel == 'e' && pos->col > 0)
3200     {
3201 	--pos->col;
3202 #ifdef FEAT_MBYTE
3203 	pos->col -= (*mb_head_off)(line, line + pos->col);
3204 #endif
3205     }
3206     cclass = get_mouse_class(line + pos->col);
3207     while (line[pos->col] != NUL)
3208     {
3209 #ifdef FEAT_MBYTE
3210 	col = pos->col + (*mb_ptr2len)(line + pos->col);
3211 #else
3212 	col = pos->col + 1;
3213 #endif
3214 	if (get_mouse_class(line + col) != cclass)
3215 	{
3216 	    if (*p_sel == 'e')
3217 		pos->col = col;
3218 	    break;
3219 	}
3220 	pos->col = col;
3221     }
3222 }
3223 
3224 /*
3225  * Get class of a character for selection: same class means same word.
3226  * 0: blank
3227  * 1: punctuation groups
3228  * 2: normal word character
3229  * >2: multi-byte word character.
3230  */
3231     static int
3232 get_mouse_class(p)
3233     char_u	*p;
3234 {
3235     int		c;
3236 
3237 #ifdef FEAT_MBYTE
3238     if (has_mbyte && MB_BYTE2LEN(p[0]) > 1)
3239 	return mb_get_class(p);
3240 #endif
3241 
3242     c = *p;
3243     if (c == ' ' || c == '\t')
3244 	return 0;
3245 
3246     if (vim_iswordc(c))
3247 	return 2;
3248 
3249     /*
3250      * There are a few special cases where we want certain combinations of
3251      * characters to be considered as a single word.  These are things like
3252      * "->", "/ *", "*=", "+=", "&=", "<=", ">=", "!=" etc.  Otherwise, each
3253      * character is in its own class.
3254      */
3255     if (c != NUL && vim_strchr((char_u *)"-+*/%<>&|^!=", c) != NULL)
3256 	return 1;
3257     return c;
3258 }
3259 #endif /* FEAT_MOUSE */
3260 
3261 /*
3262  * Check if  highlighting for visual mode is possible, give a warning message
3263  * if not.
3264  */
3265     void
3266 check_visual_highlight()
3267 {
3268     static int	    did_check = FALSE;
3269 
3270     if (full_screen)
3271     {
3272 	if (!did_check && hl_attr(HLF_V) == 0)
3273 	    MSG(_("Warning: terminal cannot highlight"));
3274 	did_check = TRUE;
3275     }
3276 }
3277 
3278 /*
3279  * End Visual mode.
3280  * This function should ALWAYS be called to end Visual mode, except from
3281  * do_pending_operator().
3282  */
3283     void
3284 end_visual_mode()
3285 {
3286 #ifdef FEAT_CLIPBOARD
3287     /*
3288      * If we are using the clipboard, then remember what was selected in case
3289      * we need to paste it somewhere while we still own the selection.
3290      * Only do this when the clipboard is already owned.  Don't want to grab
3291      * the selection when hitting ESC.
3292      */
3293     if (clip_star.available && clip_star.owned)
3294 	clip_auto_select();
3295 #endif
3296 
3297     VIsual_active = FALSE;
3298 #ifdef FEAT_MOUSE
3299     setmouse();
3300     mouse_dragging = 0;
3301 #endif
3302 
3303     /* Save the current VIsual area for '< and '> marks, and "gv" */
3304     curbuf->b_visual.vi_mode = VIsual_mode;
3305     curbuf->b_visual.vi_start = VIsual;
3306     curbuf->b_visual.vi_end = curwin->w_cursor;
3307     curbuf->b_visual.vi_curswant = curwin->w_curswant;
3308 #ifdef FEAT_EVAL
3309     curbuf->b_visual_mode_eval = VIsual_mode;
3310 #endif
3311 #ifdef FEAT_VIRTUALEDIT
3312     if (!virtual_active())
3313 	curwin->w_cursor.coladd = 0;
3314 #endif
3315 
3316     if (mode_displayed)
3317 	clear_cmdline = TRUE;		/* unshow visual mode later */
3318 #ifdef FEAT_CMDL_INFO
3319     else
3320 	clear_showcmd();
3321 #endif
3322 
3323     adjust_cursor_eol();
3324 }
3325 
3326 /*
3327  * Reset VIsual_active and VIsual_reselect.
3328  */
3329     void
3330 reset_VIsual_and_resel()
3331 {
3332     if (VIsual_active)
3333     {
3334 	end_visual_mode();
3335 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3336     }
3337     VIsual_reselect = FALSE;
3338 }
3339 
3340 /*
3341  * Reset VIsual_active and VIsual_reselect if it's set.
3342  */
3343     void
3344 reset_VIsual()
3345 {
3346     if (VIsual_active)
3347     {
3348 	end_visual_mode();
3349 	redraw_curbuf_later(INVERTED);	/* delete the inversion later */
3350 	VIsual_reselect = FALSE;
3351     }
3352 }
3353 
3354 #if defined(FEAT_BEVAL)
3355 static int find_is_eval_item __ARGS((char_u *ptr, int *colp, int *nbp, int dir));
3356 
3357 /*
3358  * Check for a balloon-eval special item to include when searching for an
3359  * identifier.  When "dir" is BACKWARD "ptr[-1]" must be valid!
3360  * Returns TRUE if the character at "*ptr" should be included.
3361  * "dir" is FORWARD or BACKWARD, the direction of searching.
3362  * "*colp" is in/decremented if "ptr[-dir]" should also be included.
3363  * "bnp" points to a counter for square brackets.
3364  */
3365     static int
3366 find_is_eval_item(ptr, colp, bnp, dir)
3367     char_u	*ptr;
3368     int		*colp;
3369     int		*bnp;
3370     int		dir;
3371 {
3372     /* Accept everything inside []. */
3373     if ((*ptr == ']' && dir == BACKWARD) || (*ptr == '[' && dir == FORWARD))
3374 	++*bnp;
3375     if (*bnp > 0)
3376     {
3377 	if ((*ptr == '[' && dir == BACKWARD) || (*ptr == ']' && dir == FORWARD))
3378 	    --*bnp;
3379 	return TRUE;
3380     }
3381 
3382     /* skip over "s.var" */
3383     if (*ptr == '.')
3384 	return TRUE;
3385 
3386     /* two-character item: s->var */
3387     if (ptr[dir == BACKWARD ? 0 : 1] == '>'
3388 	    && ptr[dir == BACKWARD ? -1 : 0] == '-')
3389     {
3390 	*colp += dir;
3391 	return TRUE;
3392     }
3393     return FALSE;
3394 }
3395 #endif
3396 
3397 /*
3398  * Find the identifier under or to the right of the cursor.
3399  * "find_type" can have one of three values:
3400  * FIND_IDENT:   find an identifier (keyword)
3401  * FIND_STRING:  find any non-white string
3402  * FIND_IDENT + FIND_STRING: find any non-white string, identifier preferred.
3403  * FIND_EVAL:	 find text useful for C program debugging
3404  *
3405  * There are three steps:
3406  * 1. Search forward for the start of an identifier/string.  Doesn't move if
3407  *    already on one.
3408  * 2. Search backward for the start of this identifier/string.
3409  *    This doesn't match the real Vi but I like it a little better and it
3410  *    shouldn't bother anyone.
3411  * 3. Search forward to the end of this identifier/string.
3412  *    When FIND_IDENT isn't defined, we backup until a blank.
3413  *
3414  * Returns the length of the string, or zero if no string is found.
3415  * If a string is found, a pointer to the string is put in "*string".  This
3416  * string is not always NUL terminated.
3417  */
3418     int
3419 find_ident_under_cursor(string, find_type)
3420     char_u	**string;
3421     int		find_type;
3422 {
3423     return find_ident_at_pos(curwin, curwin->w_cursor.lnum,
3424 				     curwin->w_cursor.col, string, find_type);
3425 }
3426 
3427 /*
3428  * Like find_ident_under_cursor(), but for any window and any position.
3429  * However: Uses 'iskeyword' from the current window!.
3430  */
3431     int
3432 find_ident_at_pos(wp, lnum, startcol, string, find_type)
3433     win_T	*wp;
3434     linenr_T	lnum;
3435     colnr_T	startcol;
3436     char_u	**string;
3437     int		find_type;
3438 {
3439     char_u	*ptr;
3440     int		col = 0;	    /* init to shut up GCC */
3441     int		i;
3442 #ifdef FEAT_MBYTE
3443     int		this_class = 0;
3444     int		prev_class;
3445     int		prevcol;
3446 #endif
3447 #if defined(FEAT_BEVAL)
3448     int		bn = 0;	    /* bracket nesting */
3449 #endif
3450 
3451     /*
3452      * if i == 0: try to find an identifier
3453      * if i == 1: try to find any non-white string
3454      */
3455     ptr = ml_get_buf(wp->w_buffer, lnum, FALSE);
3456     for (i = (find_type & FIND_IDENT) ? 0 : 1;	i < 2; ++i)
3457     {
3458 	/*
3459 	 * 1. skip to start of identifier/string
3460 	 */
3461 	col = startcol;
3462 #ifdef FEAT_MBYTE
3463 	if (has_mbyte)
3464 	{
3465 	    while (ptr[col] != NUL)
3466 	    {
3467 # if defined(FEAT_BEVAL)
3468 		/* Stop at a ']' to evaluate "a[x]". */
3469 		if ((find_type & FIND_EVAL) && ptr[col] == ']')
3470 		    break;
3471 # endif
3472 		this_class = mb_get_class(ptr + col);
3473 		if (this_class != 0 && (i == 1 || this_class != 1))
3474 		    break;
3475 		col += (*mb_ptr2len)(ptr + col);
3476 	    }
3477 	}
3478 	else
3479 #endif
3480 	    while (ptr[col] != NUL
3481 		    && (i == 0 ? !vim_iswordc(ptr[col]) : vim_iswhite(ptr[col]))
3482 # if defined(FEAT_BEVAL)
3483 		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
3484 # endif
3485 		    )
3486 		++col;
3487 
3488 #if defined(FEAT_BEVAL)
3489 	/* When starting on a ']' count it, so that we include the '['. */
3490 	bn = ptr[col] == ']';
3491 #endif
3492 
3493 	/*
3494 	 * 2. Back up to start of identifier/string.
3495 	 */
3496 #ifdef FEAT_MBYTE
3497 	if (has_mbyte)
3498 	{
3499 	    /* Remember class of character under cursor. */
3500 # if defined(FEAT_BEVAL)
3501 	    if ((find_type & FIND_EVAL) && ptr[col] == ']')
3502 		this_class = mb_get_class((char_u *)"a");
3503 	    else
3504 # endif
3505 		this_class = mb_get_class(ptr + col);
3506 	    while (col > 0 && this_class != 0)
3507 	    {
3508 		prevcol = col - 1 - (*mb_head_off)(ptr, ptr + col - 1);
3509 		prev_class = mb_get_class(ptr + prevcol);
3510 		if (this_class != prev_class
3511 			&& (i == 0
3512 			    || prev_class == 0
3513 			    || (find_type & FIND_IDENT))
3514 # if defined(FEAT_BEVAL)
3515 			&& (!(find_type & FIND_EVAL)
3516 			    || prevcol == 0
3517 			    || !find_is_eval_item(ptr + prevcol, &prevcol,
3518 							       &bn, BACKWARD))
3519 # endif
3520 			)
3521 		    break;
3522 		col = prevcol;
3523 	    }
3524 
3525 	    /* If we don't want just any old string, or we've found an
3526 	     * identifier, stop searching. */
3527 	    if (this_class > 2)
3528 		this_class = 2;
3529 	    if (!(find_type & FIND_STRING) || this_class == 2)
3530 		break;
3531 	}
3532 	else
3533 #endif
3534 	{
3535 	    while (col > 0
3536 		    && ((i == 0
3537 			    ? vim_iswordc(ptr[col - 1])
3538 			    : (!vim_iswhite(ptr[col - 1])
3539 				&& (!(find_type & FIND_IDENT)
3540 				    || !vim_iswordc(ptr[col - 1]))))
3541 #if defined(FEAT_BEVAL)
3542 			|| ((find_type & FIND_EVAL)
3543 			    && col > 1
3544 			    && find_is_eval_item(ptr + col - 1, &col,
3545 							       &bn, BACKWARD))
3546 #endif
3547 			))
3548 		--col;
3549 
3550 	    /* If we don't want just any old string, or we've found an
3551 	     * identifier, stop searching. */
3552 	    if (!(find_type & FIND_STRING) || vim_iswordc(ptr[col]))
3553 		break;
3554 	}
3555     }
3556 
3557     if (ptr[col] == NUL || (i == 0 && (
3558 #ifdef FEAT_MBYTE
3559 		has_mbyte ? this_class != 2 :
3560 #endif
3561 		!vim_iswordc(ptr[col]))))
3562     {
3563 	/*
3564 	 * didn't find an identifier or string
3565 	 */
3566 	if (find_type & FIND_STRING)
3567 	    EMSG(_("E348: No string under cursor"));
3568 	else
3569 	    EMSG(_(e_noident));
3570 	return 0;
3571     }
3572     ptr += col;
3573     *string = ptr;
3574 
3575     /*
3576      * 3. Find the end if the identifier/string.
3577      */
3578 #if defined(FEAT_BEVAL)
3579     bn = 0;
3580     startcol -= col;
3581 #endif
3582     col = 0;
3583 #ifdef FEAT_MBYTE
3584     if (has_mbyte)
3585     {
3586 	/* Search for point of changing multibyte character class. */
3587 	this_class = mb_get_class(ptr);
3588 	while (ptr[col] != NUL
3589 		&& ((i == 0 ? mb_get_class(ptr + col) == this_class
3590 			    : mb_get_class(ptr + col) != 0)
3591 # if defined(FEAT_BEVAL)
3592 		    || ((find_type & FIND_EVAL)
3593 			&& col <= (int)startcol
3594 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3595 # endif
3596 		))
3597 	    col += (*mb_ptr2len)(ptr + col);
3598     }
3599     else
3600 #endif
3601 	while ((i == 0 ? vim_iswordc(ptr[col])
3602 		       : (ptr[col] != NUL && !vim_iswhite(ptr[col])))
3603 # if defined(FEAT_BEVAL)
3604 		    || ((find_type & FIND_EVAL)
3605 			&& col <= (int)startcol
3606 			&& find_is_eval_item(ptr + col, &col, &bn, FORWARD))
3607 # endif
3608 		)
3609 	{
3610 	    ++col;
3611 	}
3612 
3613     return col;
3614 }
3615 
3616 /*
3617  * Add commands to reselect Visual mode into the redo buffer.
3618  */
3619     static void
3620 prep_redo_visual(cap)
3621     cmdarg_T *cap;
3622 {
3623     ResetRedobuff();
3624     AppendCharToRedobuff(VIsual_mode);
3625     if (VIsual_mode == 'V' && curbuf->b_visual.vi_end.lnum
3626 					    != curbuf->b_visual.vi_start.lnum)
3627     {
3628 	AppendNumberToRedobuff(curbuf->b_visual.vi_end.lnum
3629 					    - curbuf->b_visual.vi_start.lnum);
3630 	AppendCharToRedobuff('j');
3631     }
3632     else if (VIsual_mode == 'v' || VIsual_mode == Ctrl_V)
3633     {
3634 	/* block visual mode or char visual mmode*/
3635 	if (curbuf->b_visual.vi_end.lnum != curbuf->b_visual.vi_start.lnum)
3636 	{
3637 	    AppendNumberToRedobuff(curbuf->b_visual.vi_end.lnum -
3638 		    curbuf->b_visual.vi_start.lnum);
3639 	    AppendCharToRedobuff('j');
3640 	}
3641 	if (curbuf->b_visual.vi_curswant == MAXCOL)
3642 	    AppendCharToRedobuff('$');
3643 	else if (curbuf->b_visual.vi_end.col > curbuf->b_visual.vi_start.col)
3644 	{
3645 	    AppendNumberToRedobuff(curbuf->b_visual.vi_end.col
3646 					 - curbuf->b_visual.vi_start.col - 1);
3647 	    AppendCharToRedobuff(' ');
3648 	}
3649     }
3650     AppendNumberToRedobuff(cap->count1);
3651 }
3652 
3653 /*
3654  * Prepare for redo of a normal command.
3655  */
3656     static void
3657 prep_redo_cmd(cap)
3658     cmdarg_T  *cap;
3659 {
3660     prep_redo(cap->oap->regname, cap->count0,
3661 				     NUL, cap->cmdchar, NUL, NUL, cap->nchar);
3662 }
3663 
3664 /*
3665  * Prepare for redo of any command.
3666  * Note that only the last argument can be a multi-byte char.
3667  */
3668     static void
3669 prep_redo(regname, num, cmd1, cmd2, cmd3, cmd4, cmd5)
3670     int	    regname;
3671     long    num;
3672     int	    cmd1;
3673     int	    cmd2;
3674     int	    cmd3;
3675     int	    cmd4;
3676     int	    cmd5;
3677 {
3678     ResetRedobuff();
3679     if (regname != 0)	/* yank from specified buffer */
3680     {
3681 	AppendCharToRedobuff('"');
3682 	AppendCharToRedobuff(regname);
3683     }
3684     if (num)
3685 	AppendNumberToRedobuff(num);
3686 
3687     if (cmd1 != NUL)
3688 	AppendCharToRedobuff(cmd1);
3689     if (cmd2 != NUL)
3690 	AppendCharToRedobuff(cmd2);
3691     if (cmd3 != NUL)
3692 	AppendCharToRedobuff(cmd3);
3693     if (cmd4 != NUL)
3694 	AppendCharToRedobuff(cmd4);
3695     if (cmd5 != NUL)
3696 	AppendCharToRedobuff(cmd5);
3697 }
3698 
3699 /*
3700  * check for operator active and clear it
3701  *
3702  * return TRUE if operator was active
3703  */
3704     static int
3705 checkclearop(oap)
3706     oparg_T	*oap;
3707 {
3708     if (oap->op_type == OP_NOP)
3709 	return FALSE;
3710     clearopbeep(oap);
3711     return TRUE;
3712 }
3713 
3714 /*
3715  * Check for operator or Visual active.  Clear active operator.
3716  *
3717  * Return TRUE if operator or Visual was active.
3718  */
3719     static int
3720 checkclearopq(oap)
3721     oparg_T	*oap;
3722 {
3723     if (oap->op_type == OP_NOP && !VIsual_active)
3724 	return FALSE;
3725     clearopbeep(oap);
3726     return TRUE;
3727 }
3728 
3729     static void
3730 clearop(oap)
3731     oparg_T	*oap;
3732 {
3733     oap->op_type = OP_NOP;
3734     oap->regname = 0;
3735     oap->motion_force = NUL;
3736     oap->use_reg_one = FALSE;
3737 }
3738 
3739     static void
3740 clearopbeep(oap)
3741     oparg_T	*oap;
3742 {
3743     clearop(oap);
3744     beep_flush();
3745 }
3746 
3747 /*
3748  * Remove the shift modifier from a special key.
3749  */
3750     static void
3751 unshift_special(cap)
3752     cmdarg_T	*cap;
3753 {
3754     switch (cap->cmdchar)
3755     {
3756 	case K_S_RIGHT:	cap->cmdchar = K_RIGHT; break;
3757 	case K_S_LEFT:	cap->cmdchar = K_LEFT; break;
3758 	case K_S_UP:	cap->cmdchar = K_UP; break;
3759 	case K_S_DOWN:	cap->cmdchar = K_DOWN; break;
3760 	case K_S_HOME:	cap->cmdchar = K_HOME; break;
3761 	case K_S_END:	cap->cmdchar = K_END; break;
3762     }
3763     cap->cmdchar = simplify_key(cap->cmdchar, &mod_mask);
3764 }
3765 
3766 #if defined(FEAT_CMDL_INFO) || defined(PROTO)
3767 /*
3768  * Routines for displaying a partly typed command
3769  */
3770 
3771 #define SHOWCMD_BUFLEN SHOWCMD_COLS + 1 + 30
3772 static char_u	showcmd_buf[SHOWCMD_BUFLEN];
3773 static char_u	old_showcmd_buf[SHOWCMD_BUFLEN];  /* For push_showcmd() */
3774 static int	showcmd_is_clear = TRUE;
3775 static int	showcmd_visual = FALSE;
3776 
3777 static void display_showcmd __ARGS((void));
3778 
3779     void
3780 clear_showcmd()
3781 {
3782     if (!p_sc)
3783 	return;
3784 
3785     if (VIsual_active && !char_avail())
3786     {
3787 	int		cursor_bot = lt(VIsual, curwin->w_cursor);
3788 	long		lines;
3789 	colnr_T		leftcol, rightcol;
3790 	linenr_T	top, bot;
3791 
3792 	/* Show the size of the Visual area. */
3793 	if (cursor_bot)
3794 	{
3795 	    top = VIsual.lnum;
3796 	    bot = curwin->w_cursor.lnum;
3797 	}
3798 	else
3799 	{
3800 	    top = curwin->w_cursor.lnum;
3801 	    bot = VIsual.lnum;
3802 	}
3803 # ifdef FEAT_FOLDING
3804 	/* Include closed folds as a whole. */
3805 	hasFolding(top, &top, NULL);
3806 	hasFolding(bot, NULL, &bot);
3807 # endif
3808 	lines = bot - top + 1;
3809 
3810 	if (VIsual_mode == Ctrl_V)
3811 	{
3812 # ifdef FEAT_LINEBREAK
3813 	    char_u *saved_sbr = p_sbr;
3814 
3815 	    /* Make 'sbr' empty for a moment to get the correct size. */
3816 	    p_sbr = empty_option;
3817 # endif
3818 	    getvcols(curwin, &curwin->w_cursor, &VIsual, &leftcol, &rightcol);
3819 # ifdef FEAT_LINEBREAK
3820 	    p_sbr = saved_sbr;
3821 # endif
3822 	    sprintf((char *)showcmd_buf, "%ldx%ld", lines,
3823 					      (long)(rightcol - leftcol + 1));
3824 	}
3825 	else if (VIsual_mode == 'V' || VIsual.lnum != curwin->w_cursor.lnum)
3826 	    sprintf((char *)showcmd_buf, "%ld", lines);
3827 	else
3828 	{
3829 	    char_u  *s, *e;
3830 	    int	    l;
3831 	    int	    bytes = 0;
3832 	    int	    chars = 0;
3833 
3834 	    if (cursor_bot)
3835 	    {
3836 		s = ml_get_pos(&VIsual);
3837 		e = ml_get_cursor();
3838 	    }
3839 	    else
3840 	    {
3841 		s = ml_get_cursor();
3842 		e = ml_get_pos(&VIsual);
3843 	    }
3844 	    while ((*p_sel != 'e') ? s <= e : s < e)
3845 	    {
3846 # ifdef FEAT_MBYTE
3847 		l = (*mb_ptr2len)(s);
3848 # else
3849 		l = (*s == NUL) ? 0 : 1;
3850 # endif
3851 		if (l == 0)
3852 		{
3853 		    ++bytes;
3854 		    ++chars;
3855 		    break;  /* end of line */
3856 		}
3857 		bytes += l;
3858 		++chars;
3859 		s += l;
3860 	    }
3861 	    if (bytes == chars)
3862 		sprintf((char *)showcmd_buf, "%d", chars);
3863 	    else
3864 		sprintf((char *)showcmd_buf, "%d-%d", chars, bytes);
3865 	}
3866 	showcmd_buf[SHOWCMD_COLS] = NUL;	/* truncate */
3867 	showcmd_visual = TRUE;
3868     }
3869     else
3870     {
3871 	showcmd_buf[0] = NUL;
3872 	showcmd_visual = FALSE;
3873 
3874 	/* Don't actually display something if there is nothing to clear. */
3875 	if (showcmd_is_clear)
3876 	    return;
3877     }
3878 
3879     display_showcmd();
3880 }
3881 
3882 /*
3883  * Add 'c' to string of shown command chars.
3884  * Return TRUE if output has been written (and setcursor() has been called).
3885  */
3886     int
3887 add_to_showcmd(c)
3888     int		c;
3889 {
3890     char_u	*p;
3891     int		old_len;
3892     int		extra_len;
3893     int		overflow;
3894 #if defined(FEAT_MOUSE)
3895     int		i;
3896     static int	ignore[] =
3897     {
3898 # ifdef FEAT_GUI
3899 	K_VER_SCROLLBAR, K_HOR_SCROLLBAR,
3900 	K_LEFTMOUSE_NM, K_LEFTRELEASE_NM,
3901 # endif
3902 	K_IGNORE,
3903 	K_LEFTMOUSE, K_LEFTDRAG, K_LEFTRELEASE,
3904 	K_MIDDLEMOUSE, K_MIDDLEDRAG, K_MIDDLERELEASE,
3905 	K_RIGHTMOUSE, K_RIGHTDRAG, K_RIGHTRELEASE,
3906 	K_MOUSEDOWN, K_MOUSEUP, K_MOUSELEFT, K_MOUSERIGHT,
3907 	K_X1MOUSE, K_X1DRAG, K_X1RELEASE, K_X2MOUSE, K_X2DRAG, K_X2RELEASE,
3908 	K_CURSORHOLD,
3909 	0
3910     };
3911 #endif
3912 
3913     if (!p_sc || msg_silent != 0)
3914 	return FALSE;
3915 
3916     if (showcmd_visual)
3917     {
3918 	showcmd_buf[0] = NUL;
3919 	showcmd_visual = FALSE;
3920     }
3921 
3922 #if defined(FEAT_MOUSE)
3923     /* Ignore keys that are scrollbar updates and mouse clicks */
3924     if (IS_SPECIAL(c))
3925 	for (i = 0; ignore[i] != 0; ++i)
3926 	    if (ignore[i] == c)
3927 		return FALSE;
3928 #endif
3929 
3930     p = transchar(c);
3931     if (*p == ' ')
3932 	STRCPY(p, "<20>");
3933     old_len = (int)STRLEN(showcmd_buf);
3934     extra_len = (int)STRLEN(p);
3935     overflow = old_len + extra_len - SHOWCMD_COLS;
3936     if (overflow > 0)
3937 	mch_memmove(showcmd_buf, showcmd_buf + overflow,
3938 						      old_len - overflow + 1);
3939     STRCAT(showcmd_buf, p);
3940 
3941     if (char_avail())
3942 	return FALSE;
3943 
3944     display_showcmd();
3945 
3946     return TRUE;
3947 }
3948 
3949     void
3950 add_to_showcmd_c(c)
3951     int		c;
3952 {
3953     if (!add_to_showcmd(c))
3954 	setcursor();
3955 }
3956 
3957 /*
3958  * Delete 'len' characters from the end of the shown command.
3959  */
3960     static void
3961 del_from_showcmd(len)
3962     int	    len;
3963 {
3964     int	    old_len;
3965 
3966     if (!p_sc)
3967 	return;
3968 
3969     old_len = (int)STRLEN(showcmd_buf);
3970     if (len > old_len)
3971 	len = old_len;
3972     showcmd_buf[old_len - len] = NUL;
3973 
3974     if (!char_avail())
3975 	display_showcmd();
3976 }
3977 
3978 /*
3979  * push_showcmd() and pop_showcmd() are used when waiting for the user to type
3980  * something and there is a partial mapping.
3981  */
3982     void
3983 push_showcmd()
3984 {
3985     if (p_sc)
3986 	STRCPY(old_showcmd_buf, showcmd_buf);
3987 }
3988 
3989     void
3990 pop_showcmd()
3991 {
3992     if (!p_sc)
3993 	return;
3994 
3995     STRCPY(showcmd_buf, old_showcmd_buf);
3996 
3997     display_showcmd();
3998 }
3999 
4000     static void
4001 display_showcmd()
4002 {
4003     int	    len;
4004 
4005     cursor_off();
4006 
4007     len = (int)STRLEN(showcmd_buf);
4008     if (len == 0)
4009 	showcmd_is_clear = TRUE;
4010     else
4011     {
4012 	screen_puts(showcmd_buf, (int)Rows - 1, sc_col, 0);
4013 	showcmd_is_clear = FALSE;
4014     }
4015 
4016     /*
4017      * clear the rest of an old message by outputting up to SHOWCMD_COLS
4018      * spaces
4019      */
4020     screen_puts((char_u *)"          " + len, (int)Rows - 1, sc_col + len, 0);
4021 
4022     setcursor();	    /* put cursor back where it belongs */
4023 }
4024 #endif
4025 
4026 #ifdef FEAT_SCROLLBIND
4027 /*
4028  * When "check" is FALSE, prepare for commands that scroll the window.
4029  * When "check" is TRUE, take care of scroll-binding after the window has
4030  * scrolled.  Called from normal_cmd() and edit().
4031  */
4032     void
4033 do_check_scrollbind(check)
4034     int		check;
4035 {
4036     static win_T	*old_curwin = NULL;
4037     static linenr_T	old_topline = 0;
4038 #ifdef FEAT_DIFF
4039     static int		old_topfill = 0;
4040 #endif
4041     static buf_T	*old_buf = NULL;
4042     static colnr_T	old_leftcol = 0;
4043 
4044     if (check && curwin->w_p_scb)
4045     {
4046 	/* If a ":syncbind" command was just used, don't scroll, only reset
4047 	 * the values. */
4048 	if (did_syncbind)
4049 	    did_syncbind = FALSE;
4050 	else if (curwin == old_curwin)
4051 	{
4052 	    /*
4053 	     * Synchronize other windows, as necessary according to
4054 	     * 'scrollbind'.  Don't do this after an ":edit" command, except
4055 	     * when 'diff' is set.
4056 	     */
4057 	    if ((curwin->w_buffer == old_buf
4058 #ifdef FEAT_DIFF
4059 			|| curwin->w_p_diff
4060 #endif
4061 		)
4062 		&& (curwin->w_topline != old_topline
4063 #ifdef FEAT_DIFF
4064 			|| curwin->w_topfill != old_topfill
4065 #endif
4066 			|| curwin->w_leftcol != old_leftcol))
4067 	    {
4068 		check_scrollbind(curwin->w_topline - old_topline,
4069 			(long)(curwin->w_leftcol - old_leftcol));
4070 	    }
4071 	}
4072 	else if (vim_strchr(p_sbo, 'j')) /* jump flag set in 'scrollopt' */
4073 	{
4074 	    /*
4075 	     * When switching between windows, make sure that the relative
4076 	     * vertical offset is valid for the new window.  The relative
4077 	     * offset is invalid whenever another 'scrollbind' window has
4078 	     * scrolled to a point that would force the current window to
4079 	     * scroll past the beginning or end of its buffer.  When the
4080 	     * resync is performed, some of the other 'scrollbind' windows may
4081 	     * need to jump so that the current window's relative position is
4082 	     * visible on-screen.
4083 	     */
4084 	    check_scrollbind(curwin->w_topline - curwin->w_scbind_pos, 0L);
4085 	}
4086 	curwin->w_scbind_pos = curwin->w_topline;
4087     }
4088 
4089     old_curwin = curwin;
4090     old_topline = curwin->w_topline;
4091 #ifdef FEAT_DIFF
4092     old_topfill = curwin->w_topfill;
4093 #endif
4094     old_buf = curwin->w_buffer;
4095     old_leftcol = curwin->w_leftcol;
4096 }
4097 
4098 /*
4099  * Synchronize any windows that have "scrollbind" set, based on the
4100  * number of rows by which the current window has changed
4101  * (1998-11-02 16:21:01  R. Edward Ralston <[email protected]>)
4102  */
4103     void
4104 check_scrollbind(topline_diff, leftcol_diff)
4105     linenr_T	topline_diff;
4106     long	leftcol_diff;
4107 {
4108     int		want_ver;
4109     int		want_hor;
4110     win_T	*old_curwin = curwin;
4111     buf_T	*old_curbuf = curbuf;
4112     int		old_VIsual_select = VIsual_select;
4113     int		old_VIsual_active = VIsual_active;
4114     colnr_T	tgt_leftcol = curwin->w_leftcol;
4115     long	topline;
4116     long	y;
4117 
4118     /*
4119      * check 'scrollopt' string for vertical and horizontal scroll options
4120      */
4121     want_ver = (vim_strchr(p_sbo, 'v') && topline_diff != 0);
4122 #ifdef FEAT_DIFF
4123     want_ver |= old_curwin->w_p_diff;
4124 #endif
4125     want_hor = (vim_strchr(p_sbo, 'h') && (leftcol_diff || topline_diff != 0));
4126 
4127     /*
4128      * loop through the scrollbound windows and scroll accordingly
4129      */
4130     VIsual_select = VIsual_active = 0;
4131     for (curwin = firstwin; curwin; curwin = curwin->w_next)
4132     {
4133 	curbuf = curwin->w_buffer;
4134 	/* skip original window  and windows with 'noscrollbind' */
4135 	if (curwin != old_curwin && curwin->w_p_scb)
4136 	{
4137 	    /*
4138 	     * do the vertical scroll
4139 	     */
4140 	    if (want_ver)
4141 	    {
4142 #ifdef FEAT_DIFF
4143 		if (old_curwin->w_p_diff && curwin->w_p_diff)
4144 		{
4145 		    diff_set_topline(old_curwin, curwin);
4146 		}
4147 		else
4148 #endif
4149 		{
4150 		    curwin->w_scbind_pos += topline_diff;
4151 		    topline = curwin->w_scbind_pos;
4152 		    if (topline > curbuf->b_ml.ml_line_count)
4153 			topline = curbuf->b_ml.ml_line_count;
4154 		    if (topline < 1)
4155 			topline = 1;
4156 
4157 		    y = topline - curwin->w_topline;
4158 		    if (y > 0)
4159 			scrollup(y, FALSE);
4160 		    else
4161 			scrolldown(-y, FALSE);
4162 		}
4163 
4164 		redraw_later(VALID);
4165 		cursor_correct();
4166 #ifdef FEAT_WINDOWS
4167 		curwin->w_redr_status = TRUE;
4168 #endif
4169 	    }
4170 
4171 	    /*
4172 	     * do the horizontal scroll
4173 	     */
4174 	    if (want_hor && curwin->w_leftcol != tgt_leftcol)
4175 	    {
4176 		curwin->w_leftcol = tgt_leftcol;
4177 		leftcol_changed();
4178 	    }
4179 	}
4180     }
4181 
4182     /*
4183      * reset current-window
4184      */
4185     VIsual_select = old_VIsual_select;
4186     VIsual_active = old_VIsual_active;
4187     curwin = old_curwin;
4188     curbuf = old_curbuf;
4189 }
4190 #endif /* #ifdef FEAT_SCROLLBIND */
4191 
4192 /*
4193  * Command character that's ignored.
4194  * Used for CTRL-Q and CTRL-S to avoid problems with terminals that use
4195  * xon/xoff.
4196  */
4197     static void
4198 nv_ignore(cap)
4199     cmdarg_T	*cap;
4200 {
4201     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
4202 }
4203 
4204 /*
4205  * Command character that doesn't do anything, but unlike nv_ignore() does
4206  * start edit().  Used for "startinsert" executed while starting up.
4207  */
4208     static void
4209 nv_nop(cap)
4210     cmdarg_T	*cap UNUSED;
4211 {
4212 }
4213 
4214 /*
4215  * Command character doesn't exist.
4216  */
4217     static void
4218 nv_error(cap)
4219     cmdarg_T	*cap;
4220 {
4221     clearopbeep(cap->oap);
4222 }
4223 
4224 /*
4225  * <Help> and <F1> commands.
4226  */
4227     static void
4228 nv_help(cap)
4229     cmdarg_T	*cap;
4230 {
4231     if (!checkclearopq(cap->oap))
4232 	ex_help(NULL);
4233 }
4234 
4235 /*
4236  * CTRL-A and CTRL-X: Add or subtract from letter or number under cursor.
4237  */
4238     static void
4239 nv_addsub(cap)
4240     cmdarg_T	*cap;
4241 {
4242     int visual = VIsual_active;
4243     if (cap->oap->op_type == OP_NOP
4244 	    && do_addsub((int)cap->cmdchar, cap->count1, cap->arg) == OK)
4245     {
4246 	if (visual)
4247 	{
4248 	    prep_redo_visual(cap);
4249 	    if (cap->arg)
4250 		AppendCharToRedobuff('g');
4251 	    AppendCharToRedobuff(cap->cmdchar);
4252 	}
4253 	else
4254 	    prep_redo_cmd(cap);
4255     }
4256     else
4257 	clearopbeep(cap->oap);
4258     if (visual)
4259     {
4260 	VIsual_active = FALSE;
4261 	redo_VIsual_busy = FALSE;
4262 	redraw_later(INVERTED);
4263     }
4264 }
4265 
4266 /*
4267  * CTRL-F, CTRL-B, etc: Scroll page up or down.
4268  */
4269     static void
4270 nv_page(cap)
4271     cmdarg_T	*cap;
4272 {
4273     if (!checkclearop(cap->oap))
4274     {
4275 #ifdef FEAT_WINDOWS
4276 	if (mod_mask & MOD_MASK_CTRL)
4277 	{
4278 	    /* <C-PageUp>: tab page back; <C-PageDown>: tab page forward */
4279 	    if (cap->arg == BACKWARD)
4280 		goto_tabpage(-(int)cap->count1);
4281 	    else
4282 		goto_tabpage((int)cap->count0);
4283 	}
4284 	else
4285 #endif
4286 	(void)onepage(cap->arg, cap->count1);
4287     }
4288 }
4289 
4290 /*
4291  * Implementation of "gd" and "gD" command.
4292  */
4293     static void
4294 nv_gd(oap, nchar, thisblock)
4295     oparg_T	*oap;
4296     int		nchar;
4297     int		thisblock;	/* 1 for "1gd" and "1gD" */
4298 {
4299     int		len;
4300     char_u	*ptr;
4301 
4302     if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0
4303 	    || find_decl(ptr, len, nchar == 'd', thisblock, 0) == FAIL)
4304 	clearopbeep(oap);
4305 #ifdef FEAT_FOLDING
4306     else if ((fdo_flags & FDO_SEARCH) && KeyTyped && oap->op_type == OP_NOP)
4307 	foldOpenCursor();
4308 #endif
4309 }
4310 
4311 /*
4312  * Search for variable declaration of "ptr[len]".
4313  * When "locally" is TRUE in the current function ("gd"), otherwise in the
4314  * current file ("gD").
4315  * When "thisblock" is TRUE check the {} block scope.
4316  * Return FAIL when not found.
4317  */
4318     int
4319 find_decl(ptr, len, locally, thisblock, searchflags)
4320     char_u	*ptr;
4321     int		len;
4322     int		locally;
4323     int		thisblock;
4324     int		searchflags;	/* flags passed to searchit() */
4325 {
4326     char_u	*pat;
4327     pos_T	old_pos;
4328     pos_T	par_pos;
4329     pos_T	found_pos;
4330     int		t;
4331     int		save_p_ws;
4332     int		save_p_scs;
4333     int		retval = OK;
4334     int		incll;
4335 
4336     if ((pat = alloc(len + 7)) == NULL)
4337 	return FAIL;
4338 
4339     /* Put "\V" before the pattern to avoid that the special meaning of "."
4340      * and "~" causes trouble. */
4341     sprintf((char *)pat, vim_iswordp(ptr) ? "\\V\\<%.*s\\>" : "\\V%.*s",
4342 								    len, ptr);
4343     old_pos = curwin->w_cursor;
4344     save_p_ws = p_ws;
4345     save_p_scs = p_scs;
4346     p_ws = FALSE;	/* don't wrap around end of file now */
4347     p_scs = FALSE;	/* don't switch ignorecase off now */
4348 
4349     /*
4350      * With "gD" go to line 1.
4351      * With "gd" Search back for the start of the current function, then go
4352      * back until a blank line.  If this fails go to line 1.
4353      */
4354     if (!locally || !findpar(&incll, BACKWARD, 1L, '{', FALSE))
4355     {
4356 	setpcmark();			/* Set in findpar() otherwise */
4357 	curwin->w_cursor.lnum = 1;
4358 	par_pos = curwin->w_cursor;
4359     }
4360     else
4361     {
4362 	par_pos = curwin->w_cursor;
4363 	while (curwin->w_cursor.lnum > 1 && *skipwhite(ml_get_curline()) != NUL)
4364 	    --curwin->w_cursor.lnum;
4365     }
4366     curwin->w_cursor.col = 0;
4367 
4368     /* Search forward for the identifier, ignore comment lines. */
4369     clearpos(&found_pos);
4370     for (;;)
4371     {
4372 	t = searchit(curwin, curbuf, &curwin->w_cursor, FORWARD,
4373 			    pat, 1L, searchflags, RE_LAST, (linenr_T)0, NULL);
4374 	if (curwin->w_cursor.lnum >= old_pos.lnum)
4375 	    t = FAIL;	/* match after start is failure too */
4376 
4377 	if (thisblock && t != FAIL)
4378 	{
4379 	    pos_T	*pos;
4380 
4381 	    /* Check that the block the match is in doesn't end before the
4382 	     * position where we started the search from. */
4383 	    if ((pos = findmatchlimit(NULL, '}', FM_FORWARD,
4384 		     (int)(old_pos.lnum - curwin->w_cursor.lnum + 1))) != NULL
4385 		    && pos->lnum < old_pos.lnum)
4386 		continue;
4387 	}
4388 
4389 	if (t == FAIL)
4390 	{
4391 	    /* If we previously found a valid position, use it. */
4392 	    if (found_pos.lnum != 0)
4393 	    {
4394 		curwin->w_cursor = found_pos;
4395 		t = OK;
4396 	    }
4397 	    break;
4398 	}
4399 #ifdef FEAT_COMMENTS
4400 	if (get_leader_len(ml_get_curline(), NULL, FALSE, TRUE) > 0)
4401 	{
4402 	    /* Ignore this line, continue at start of next line. */
4403 	    ++curwin->w_cursor.lnum;
4404 	    curwin->w_cursor.col = 0;
4405 	    continue;
4406 	}
4407 #endif
4408 	if (!locally)	/* global search: use first match found */
4409 	    break;
4410 	if (curwin->w_cursor.lnum >= par_pos.lnum)
4411 	{
4412 	    /* If we previously found a valid position, use it. */
4413 	    if (found_pos.lnum != 0)
4414 		curwin->w_cursor = found_pos;
4415 	    break;
4416 	}
4417 
4418 	/* For finding a local variable and the match is before the "{" search
4419 	 * to find a later match.  For K&R style function declarations this
4420 	 * skips the function header without types. */
4421 	found_pos = curwin->w_cursor;
4422     }
4423 
4424     if (t == FAIL)
4425     {
4426 	retval = FAIL;
4427 	curwin->w_cursor = old_pos;
4428     }
4429     else
4430     {
4431 	curwin->w_set_curswant = TRUE;
4432 	/* "n" searches forward now */
4433 	reset_search_dir();
4434     }
4435 
4436     vim_free(pat);
4437     p_ws = save_p_ws;
4438     p_scs = save_p_scs;
4439 
4440     return retval;
4441 }
4442 
4443 /*
4444  * Move 'dist' lines in direction 'dir', counting lines by *screen*
4445  * lines rather than lines in the file.
4446  * 'dist' must be positive.
4447  *
4448  * Return OK if able to move cursor, FAIL otherwise.
4449  */
4450     static int
4451 nv_screengo(oap, dir, dist)
4452     oparg_T	*oap;
4453     int		dir;
4454     long	dist;
4455 {
4456     int		linelen = linetabsize(ml_get_curline());
4457     int		retval = OK;
4458     int		atend = FALSE;
4459     int		n;
4460     int		col_off1;	/* margin offset for first screen line */
4461     int		col_off2;	/* margin offset for wrapped screen line */
4462     int		width1;		/* text width for first screen line */
4463     int		width2;		/* test width for wrapped screen line */
4464 
4465     oap->motion_type = MCHAR;
4466     oap->inclusive = (curwin->w_curswant == MAXCOL);
4467 
4468     col_off1 = curwin_col_off();
4469     col_off2 = col_off1 - curwin_col_off2();
4470     width1 = W_WIDTH(curwin) - col_off1;
4471     width2 = W_WIDTH(curwin) - col_off2;
4472     if (width2 == 0)
4473 	width2 = 1; /* avoid divide by zero */
4474 
4475 #ifdef FEAT_VERTSPLIT
4476     if (curwin->w_width != 0)
4477     {
4478 #endif
4479       /*
4480        * Instead of sticking at the last character of the buffer line we
4481        * try to stick in the last column of the screen.
4482        */
4483       if (curwin->w_curswant == MAXCOL)
4484       {
4485 	atend = TRUE;
4486 	validate_virtcol();
4487 	if (width1 <= 0)
4488 	    curwin->w_curswant = 0;
4489 	else
4490 	{
4491 	    curwin->w_curswant = width1 - 1;
4492 	    if (curwin->w_virtcol > curwin->w_curswant)
4493 		curwin->w_curswant += ((curwin->w_virtcol
4494 			     - curwin->w_curswant - 1) / width2 + 1) * width2;
4495 	}
4496       }
4497       else
4498       {
4499 	if (linelen > width1)
4500 	    n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4501 	else
4502 	    n = width1;
4503 	if (curwin->w_curswant > (colnr_T)n + 1)
4504 	    curwin->w_curswant -= ((curwin->w_curswant - n) / width2 + 1)
4505 								     * width2;
4506       }
4507 
4508       while (dist--)
4509       {
4510 	if (dir == BACKWARD)
4511 	{
4512 	    if ((long)curwin->w_curswant >= width2)
4513 		/* move back within line */
4514 		curwin->w_curswant -= width2;
4515 	    else
4516 	    {
4517 		/* to previous line */
4518 		if (curwin->w_cursor.lnum == 1)
4519 		{
4520 		    retval = FAIL;
4521 		    break;
4522 		}
4523 		--curwin->w_cursor.lnum;
4524 #ifdef FEAT_FOLDING
4525 		/* Move to the start of a closed fold.  Don't do that when
4526 		 * 'foldopen' contains "all": it will open in a moment. */
4527 		if (!(fdo_flags & FDO_ALL))
4528 		    (void)hasFolding(curwin->w_cursor.lnum,
4529 						&curwin->w_cursor.lnum, NULL);
4530 #endif
4531 		linelen = linetabsize(ml_get_curline());
4532 		if (linelen > width1)
4533 		    curwin->w_curswant += (((linelen - width1 - 1) / width2)
4534 								+ 1) * width2;
4535 	    }
4536 	}
4537 	else /* dir == FORWARD */
4538 	{
4539 	    if (linelen > width1)
4540 		n = ((linelen - width1 - 1) / width2 + 1) * width2 + width1;
4541 	    else
4542 		n = width1;
4543 	    if (curwin->w_curswant + width2 < (colnr_T)n)
4544 		/* move forward within line */
4545 		curwin->w_curswant += width2;
4546 	    else
4547 	    {
4548 		/* to next line */
4549 #ifdef FEAT_FOLDING
4550 		/* Move to the end of a closed fold. */
4551 		(void)hasFolding(curwin->w_cursor.lnum, NULL,
4552 						      &curwin->w_cursor.lnum);
4553 #endif
4554 		if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
4555 		{
4556 		    retval = FAIL;
4557 		    break;
4558 		}
4559 		curwin->w_cursor.lnum++;
4560 		curwin->w_curswant %= width2;
4561 		linelen = linetabsize(ml_get_curline());
4562 	    }
4563 	}
4564       }
4565 #ifdef FEAT_VERTSPLIT
4566     }
4567 #endif
4568 
4569     if (virtual_active() && atend)
4570 	coladvance(MAXCOL);
4571     else
4572 	coladvance(curwin->w_curswant);
4573 
4574 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
4575     if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
4576     {
4577 	colnr_T virtcol;
4578 
4579 	/*
4580 	 * Check for landing on a character that got split at the end of the
4581 	 * last line.  We want to advance a screenline, not end up in the same
4582 	 * screenline or move two screenlines.
4583 	 */
4584 	validate_virtcol();
4585 	virtcol = curwin->w_virtcol;
4586 # if defined(FEAT_LINEBREAK)
4587 	if (virtcol > (colnr_T)width1 && *p_sbr != NUL)
4588 	    virtcol -= vim_strsize(p_sbr);
4589 # endif
4590 
4591 	if (virtcol > curwin->w_curswant
4592 		&& (curwin->w_curswant < (colnr_T)width1
4593 		    ? (curwin->w_curswant > (colnr_T)width1 / 2)
4594 		    : ((curwin->w_curswant - width1) % width2
4595 						      > (colnr_T)width2 / 2)))
4596 	    --curwin->w_cursor.col;
4597     }
4598 #endif
4599 
4600     if (atend)
4601 	curwin->w_curswant = MAXCOL;	    /* stick in the last column */
4602 
4603     return retval;
4604 }
4605 
4606 #ifdef FEAT_MOUSE
4607 /*
4608  * Mouse scroll wheel: Default action is to scroll three lines, or one page
4609  * when Shift or Ctrl is used.
4610  * K_MOUSEUP (cap->arg == 1) or K_MOUSEDOWN (cap->arg == 0) or
4611  * K_MOUSELEFT (cap->arg == -1) or K_MOUSERIGHT (cap->arg == -2)
4612  */
4613     static void
4614 nv_mousescroll(cap)
4615     cmdarg_T	*cap;
4616 {
4617 # ifdef FEAT_WINDOWS
4618     win_T *old_curwin = curwin;
4619 
4620     if (mouse_row >= 0 && mouse_col >= 0)
4621     {
4622 	int row, col;
4623 
4624 	row = mouse_row;
4625 	col = mouse_col;
4626 
4627 	/* find the window at the pointer coordinates */
4628 	curwin = mouse_find_win(&row, &col);
4629 	curbuf = curwin->w_buffer;
4630     }
4631 # endif
4632 
4633     if (cap->arg == MSCR_UP || cap->arg == MSCR_DOWN)
4634     {
4635 	if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4636 	{
4637 	    (void)onepage(cap->arg ? FORWARD : BACKWARD, 1L);
4638 	}
4639 	else
4640 	{
4641 	    cap->count1 = 3;
4642 	    cap->count0 = 3;
4643 	    nv_scroll_line(cap);
4644 	}
4645     }
4646 # ifdef FEAT_GUI
4647     else
4648     {
4649 	/* Horizontal scroll - only allowed when 'wrap' is disabled */
4650 	if (!curwin->w_p_wrap)
4651 	{
4652 	    int val, step = 6;
4653 
4654 	    if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
4655 		step = W_WIDTH(curwin);
4656 	    val = curwin->w_leftcol + (cap->arg == MSCR_RIGHT ? -step : +step);
4657 	    if (val < 0)
4658 		val = 0;
4659 
4660 	    gui_do_horiz_scroll(val, TRUE);
4661 	}
4662     }
4663 # endif
4664 
4665 # ifdef FEAT_WINDOWS
4666     curwin->w_redr_status = TRUE;
4667 
4668     curwin = old_curwin;
4669     curbuf = curwin->w_buffer;
4670 # endif
4671 }
4672 
4673 /*
4674  * Mouse clicks and drags.
4675  */
4676     static void
4677 nv_mouse(cap)
4678     cmdarg_T	*cap;
4679 {
4680     (void)do_mouse(cap->oap, cap->cmdchar, BACKWARD, cap->count1, 0);
4681 }
4682 #endif
4683 
4684 /*
4685  * Handle CTRL-E and CTRL-Y commands: scroll a line up or down.
4686  * cap->arg must be TRUE for CTRL-E.
4687  */
4688     static void
4689 nv_scroll_line(cap)
4690     cmdarg_T	*cap;
4691 {
4692     if (!checkclearop(cap->oap))
4693 	scroll_redraw(cap->arg, cap->count1);
4694 }
4695 
4696 /*
4697  * Scroll "count" lines up or down, and redraw.
4698  */
4699     void
4700 scroll_redraw(up, count)
4701     int		up;
4702     long	count;
4703 {
4704     linenr_T	prev_topline = curwin->w_topline;
4705 #ifdef FEAT_DIFF
4706     int		prev_topfill = curwin->w_topfill;
4707 #endif
4708     linenr_T	prev_lnum = curwin->w_cursor.lnum;
4709 
4710     if (up)
4711 	scrollup(count, TRUE);
4712     else
4713 	scrolldown(count, TRUE);
4714     if (p_so)
4715     {
4716 	/* Adjust the cursor position for 'scrolloff'.  Mark w_topline as
4717 	 * valid, otherwise the screen jumps back at the end of the file. */
4718 	cursor_correct();
4719 	check_cursor_moved(curwin);
4720 	curwin->w_valid |= VALID_TOPLINE;
4721 
4722 	/* If moved back to where we were, at least move the cursor, otherwise
4723 	 * we get stuck at one position.  Don't move the cursor up if the
4724 	 * first line of the buffer is already on the screen */
4725 	while (curwin->w_topline == prev_topline
4726 #ifdef FEAT_DIFF
4727 		&& curwin->w_topfill == prev_topfill
4728 #endif
4729 		)
4730 	{
4731 	    if (up)
4732 	    {
4733 		if (curwin->w_cursor.lnum > prev_lnum
4734 			|| cursor_down(1L, FALSE) == FAIL)
4735 		    break;
4736 	    }
4737 	    else
4738 	    {
4739 		if (curwin->w_cursor.lnum < prev_lnum
4740 			|| prev_topline == 1L
4741 			|| cursor_up(1L, FALSE) == FAIL)
4742 		    break;
4743 	    }
4744 	    /* Mark w_topline as valid, otherwise the screen jumps back at the
4745 	     * end of the file. */
4746 	    check_cursor_moved(curwin);
4747 	    curwin->w_valid |= VALID_TOPLINE;
4748 	}
4749     }
4750     if (curwin->w_cursor.lnum != prev_lnum)
4751 	coladvance(curwin->w_curswant);
4752     redraw_later(VALID);
4753 }
4754 
4755 /*
4756  * Commands that start with "z".
4757  */
4758     static void
4759 nv_zet(cap)
4760     cmdarg_T  *cap;
4761 {
4762     long	n;
4763     colnr_T	col;
4764     int		nchar = cap->nchar;
4765 #ifdef FEAT_FOLDING
4766     long	old_fdl = curwin->w_p_fdl;
4767     int		old_fen = curwin->w_p_fen;
4768 #endif
4769 #ifdef FEAT_SPELL
4770     int		undo = FALSE;
4771 #endif
4772 
4773     if (VIM_ISDIGIT(nchar))
4774     {
4775 	/*
4776 	 * "z123{nchar}": edit the count before obtaining {nchar}
4777 	 */
4778 	if (checkclearop(cap->oap))
4779 	    return;
4780 	n = nchar - '0';
4781 	for (;;)
4782 	{
4783 #ifdef USE_ON_FLY_SCROLL
4784 	    dont_scroll = TRUE;		/* disallow scrolling here */
4785 #endif
4786 	    ++no_mapping;
4787 	    ++allow_keys;   /* no mapping for nchar, but allow key codes */
4788 	    nchar = plain_vgetc();
4789 	    LANGMAP_ADJUST(nchar, TRUE);
4790 	    --no_mapping;
4791 	    --allow_keys;
4792 #ifdef FEAT_CMDL_INFO
4793 	    (void)add_to_showcmd(nchar);
4794 #endif
4795 	    if (nchar == K_DEL || nchar == K_KDEL)
4796 		n /= 10;
4797 	    else if (VIM_ISDIGIT(nchar))
4798 		n = n * 10 + (nchar - '0');
4799 	    else if (nchar == CAR)
4800 	    {
4801 #ifdef FEAT_GUI
4802 		need_mouse_correct = TRUE;
4803 #endif
4804 		win_setheight((int)n);
4805 		break;
4806 	    }
4807 	    else if (nchar == 'l'
4808 		    || nchar == 'h'
4809 		    || nchar == K_LEFT
4810 		    || nchar == K_RIGHT)
4811 	    {
4812 		cap->count1 = n ? n * cap->count1 : cap->count1;
4813 		goto dozet;
4814 	    }
4815 	    else
4816 	    {
4817 		clearopbeep(cap->oap);
4818 		break;
4819 	    }
4820 	}
4821 	cap->oap->op_type = OP_NOP;
4822 	return;
4823     }
4824 
4825 dozet:
4826     if (
4827 #ifdef FEAT_FOLDING
4828 	    /* "zf" and "zF" are always an operator, "zd", "zo", "zO", "zc"
4829 	     * and "zC" only in Visual mode.  "zj" and "zk" are motion
4830 	     * commands. */
4831 	    cap->nchar != 'f' && cap->nchar != 'F'
4832 	    && !(VIsual_active && vim_strchr((char_u *)"dcCoO", cap->nchar))
4833 	    && cap->nchar != 'j' && cap->nchar != 'k'
4834 	    &&
4835 #endif
4836 	    checkclearop(cap->oap))
4837 	return;
4838 
4839     /*
4840      * For "z+", "z<CR>", "zt", "z.", "zz", "z^", "z-", "zb":
4841      * If line number given, set cursor.
4842      */
4843     if ((vim_strchr((char_u *)"+\r\nt.z^-b", nchar) != NULL)
4844 	    && cap->count0
4845 	    && cap->count0 != curwin->w_cursor.lnum)
4846     {
4847 	setpcmark();
4848 	if (cap->count0 > curbuf->b_ml.ml_line_count)
4849 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4850 	else
4851 	    curwin->w_cursor.lnum = cap->count0;
4852 	check_cursor_col();
4853     }
4854 
4855     switch (nchar)
4856     {
4857 		/* "z+", "z<CR>" and "zt": put cursor at top of screen */
4858     case '+':
4859 		if (cap->count0 == 0)
4860 		{
4861 		    /* No count given: put cursor at the line below screen */
4862 		    validate_botline();	/* make sure w_botline is valid */
4863 		    if (curwin->w_botline > curbuf->b_ml.ml_line_count)
4864 			curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
4865 		    else
4866 			curwin->w_cursor.lnum = curwin->w_botline;
4867 		}
4868 		/* FALLTHROUGH */
4869     case NL:
4870     case CAR:
4871     case K_KENTER:
4872 		beginline(BL_WHITE | BL_FIX);
4873 		/* FALLTHROUGH */
4874 
4875     case 't':	scroll_cursor_top(0, TRUE);
4876 		redraw_later(VALID);
4877 		break;
4878 
4879 		/* "z." and "zz": put cursor in middle of screen */
4880     case '.':	beginline(BL_WHITE | BL_FIX);
4881 		/* FALLTHROUGH */
4882 
4883     case 'z':	scroll_cursor_halfway(TRUE);
4884 		redraw_later(VALID);
4885 		break;
4886 
4887 		/* "z^", "z-" and "zb": put cursor at bottom of screen */
4888     case '^':	/* Strange Vi behavior: <count>z^ finds line at top of window
4889 		 * when <count> is at bottom of window, and puts that one at
4890 		 * bottom of window. */
4891 		if (cap->count0 != 0)
4892 		{
4893 		    scroll_cursor_bot(0, TRUE);
4894 		    curwin->w_cursor.lnum = curwin->w_topline;
4895 		}
4896 		else if (curwin->w_topline == 1)
4897 		    curwin->w_cursor.lnum = 1;
4898 		else
4899 		    curwin->w_cursor.lnum = curwin->w_topline - 1;
4900 		/* FALLTHROUGH */
4901     case '-':
4902 		beginline(BL_WHITE | BL_FIX);
4903 		/* FALLTHROUGH */
4904 
4905     case 'b':	scroll_cursor_bot(0, TRUE);
4906 		redraw_later(VALID);
4907 		break;
4908 
4909 		/* "zH" - scroll screen right half-page */
4910     case 'H':
4911 		cap->count1 *= W_WIDTH(curwin) / 2;
4912 		/* FALLTHROUGH */
4913 
4914 		/* "zh" - scroll screen to the right */
4915     case 'h':
4916     case K_LEFT:
4917 		if (!curwin->w_p_wrap)
4918 		{
4919 		    if ((colnr_T)cap->count1 > curwin->w_leftcol)
4920 			curwin->w_leftcol = 0;
4921 		    else
4922 			curwin->w_leftcol -= (colnr_T)cap->count1;
4923 		    leftcol_changed();
4924 		}
4925 		break;
4926 
4927 		/* "zL" - scroll screen left half-page */
4928     case 'L':	cap->count1 *= W_WIDTH(curwin) / 2;
4929 		/* FALLTHROUGH */
4930 
4931 		/* "zl" - scroll screen to the left */
4932     case 'l':
4933     case K_RIGHT:
4934 		if (!curwin->w_p_wrap)
4935 		{
4936 		    /* scroll the window left */
4937 		    curwin->w_leftcol += (colnr_T)cap->count1;
4938 		    leftcol_changed();
4939 		}
4940 		break;
4941 
4942 		/* "zs" - scroll screen, cursor at the start */
4943     case 's':	if (!curwin->w_p_wrap)
4944 		{
4945 #ifdef FEAT_FOLDING
4946 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4947 			col = 0;	/* like the cursor is in col 0 */
4948 		    else
4949 #endif
4950 		    getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
4951 		    if ((long)col > p_siso)
4952 			col -= p_siso;
4953 		    else
4954 			col = 0;
4955 		    if (curwin->w_leftcol != col)
4956 		    {
4957 			curwin->w_leftcol = col;
4958 			redraw_later(NOT_VALID);
4959 		    }
4960 		}
4961 		break;
4962 
4963 		/* "ze" - scroll screen, cursor at the end */
4964     case 'e':	if (!curwin->w_p_wrap)
4965 		{
4966 #ifdef FEAT_FOLDING
4967 		    if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
4968 			col = 0;	/* like the cursor is in col 0 */
4969 		    else
4970 #endif
4971 		    getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
4972 		    n = W_WIDTH(curwin) - curwin_col_off();
4973 		    if ((long)col + p_siso < n)
4974 			col = 0;
4975 		    else
4976 			col = col + p_siso - n + 1;
4977 		    if (curwin->w_leftcol != col)
4978 		    {
4979 			curwin->w_leftcol = col;
4980 			redraw_later(NOT_VALID);
4981 		    }
4982 		}
4983 		break;
4984 
4985 #ifdef FEAT_FOLDING
4986 		/* "zF": create fold command */
4987 		/* "zf": create fold operator */
4988     case 'F':
4989     case 'f':   if (foldManualAllowed(TRUE))
4990 		{
4991 		    cap->nchar = 'f';
4992 		    nv_operator(cap);
4993 		    curwin->w_p_fen = TRUE;
4994 
4995 		    /* "zF" is like "zfzf" */
4996 		    if (nchar == 'F' && cap->oap->op_type == OP_FOLD)
4997 		    {
4998 			nv_operator(cap);
4999 			finish_op = TRUE;
5000 		    }
5001 		}
5002 		else
5003 		    clearopbeep(cap->oap);
5004 		break;
5005 
5006 		/* "zd": delete fold at cursor */
5007 		/* "zD": delete fold at cursor recursively */
5008     case 'd':
5009     case 'D':	if (foldManualAllowed(FALSE))
5010 		{
5011 		    if (VIsual_active)
5012 			nv_operator(cap);
5013 		    else
5014 			deleteFold(curwin->w_cursor.lnum,
5015 				  curwin->w_cursor.lnum, nchar == 'D', FALSE);
5016 		}
5017 		break;
5018 
5019 		/* "zE": erase all folds */
5020     case 'E':	if (foldmethodIsManual(curwin))
5021 		{
5022 		    clearFolding(curwin);
5023 		    changed_window_setting();
5024 		}
5025 		else if (foldmethodIsMarker(curwin))
5026 		    deleteFold((linenr_T)1, curbuf->b_ml.ml_line_count,
5027 								 TRUE, FALSE);
5028 		else
5029 		    EMSG(_("E352: Cannot erase folds with current 'foldmethod'"));
5030 		break;
5031 
5032 		/* "zn": fold none: reset 'foldenable' */
5033     case 'n':	curwin->w_p_fen = FALSE;
5034 		break;
5035 
5036 		/* "zN": fold Normal: set 'foldenable' */
5037     case 'N':	curwin->w_p_fen = TRUE;
5038 		break;
5039 
5040 		/* "zi": invert folding: toggle 'foldenable' */
5041     case 'i':	curwin->w_p_fen = !curwin->w_p_fen;
5042 		break;
5043 
5044 		/* "za": open closed fold or close open fold at cursor */
5045     case 'a':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
5046 		    openFold(curwin->w_cursor.lnum, cap->count1);
5047 		else
5048 		{
5049 		    closeFold(curwin->w_cursor.lnum, cap->count1);
5050 		    curwin->w_p_fen = TRUE;
5051 		}
5052 		break;
5053 
5054 		/* "zA": open fold at cursor recursively */
5055     case 'A':	if (hasFolding(curwin->w_cursor.lnum, NULL, NULL))
5056 		    openFoldRecurse(curwin->w_cursor.lnum);
5057 		else
5058 		{
5059 		    closeFoldRecurse(curwin->w_cursor.lnum);
5060 		    curwin->w_p_fen = TRUE;
5061 		}
5062 		break;
5063 
5064 		/* "zo": open fold at cursor or Visual area */
5065     case 'o':	if (VIsual_active)
5066 		    nv_operator(cap);
5067 		else
5068 		    openFold(curwin->w_cursor.lnum, cap->count1);
5069 		break;
5070 
5071 		/* "zO": open fold recursively */
5072     case 'O':	if (VIsual_active)
5073 		    nv_operator(cap);
5074 		else
5075 		    openFoldRecurse(curwin->w_cursor.lnum);
5076 		break;
5077 
5078 		/* "zc": close fold at cursor or Visual area */
5079     case 'c':	if (VIsual_active)
5080 		    nv_operator(cap);
5081 		else
5082 		    closeFold(curwin->w_cursor.lnum, cap->count1);
5083 		curwin->w_p_fen = TRUE;
5084 		break;
5085 
5086 		/* "zC": close fold recursively */
5087     case 'C':	if (VIsual_active)
5088 		    nv_operator(cap);
5089 		else
5090 		    closeFoldRecurse(curwin->w_cursor.lnum);
5091 		curwin->w_p_fen = TRUE;
5092 		break;
5093 
5094 		/* "zv": open folds at the cursor */
5095     case 'v':	foldOpenCursor();
5096 		break;
5097 
5098 		/* "zx": re-apply 'foldlevel' and open folds at the cursor */
5099     case 'x':	curwin->w_p_fen = TRUE;
5100 		curwin->w_foldinvalid = TRUE;	/* recompute folds */
5101 		newFoldLevel();			/* update right now */
5102 		foldOpenCursor();
5103 		break;
5104 
5105 		/* "zX": undo manual opens/closes, re-apply 'foldlevel' */
5106     case 'X':	curwin->w_p_fen = TRUE;
5107 		curwin->w_foldinvalid = TRUE;	/* recompute folds */
5108 		old_fdl = -1;			/* force an update */
5109 		break;
5110 
5111 		/* "zm": fold more */
5112     case 'm':	if (curwin->w_p_fdl > 0)
5113 		{
5114 		    curwin->w_p_fdl -= cap->count1;
5115 		    if (curwin->w_p_fdl < 0)
5116 			curwin->w_p_fdl = 0;
5117 		}
5118 		old_fdl = -1;		/* force an update */
5119 		curwin->w_p_fen = TRUE;
5120 		break;
5121 
5122 		/* "zM": close all folds */
5123     case 'M':	curwin->w_p_fdl = 0;
5124 		old_fdl = -1;		/* force an update */
5125 		curwin->w_p_fen = TRUE;
5126 		break;
5127 
5128 		/* "zr": reduce folding */
5129     case 'r':	curwin->w_p_fdl += cap->count1;
5130 		{
5131 		    int d = getDeepestNesting();
5132 
5133 		    if (curwin->w_p_fdl >= d)
5134 			curwin->w_p_fdl = d;
5135 		}
5136 		break;
5137 
5138 		/* "zR": open all folds */
5139     case 'R':	curwin->w_p_fdl = getDeepestNesting();
5140 		old_fdl = -1;		/* force an update */
5141 		break;
5142 
5143     case 'j':	/* "zj" move to next fold downwards */
5144     case 'k':	/* "zk" move to next fold upwards */
5145 		if (foldMoveTo(TRUE, nchar == 'j' ? FORWARD : BACKWARD,
5146 							  cap->count1) == FAIL)
5147 		    clearopbeep(cap->oap);
5148 		break;
5149 
5150 #endif /* FEAT_FOLDING */
5151 
5152 #ifdef FEAT_SPELL
5153     case 'u':	/* "zug" and "zuw": undo "zg" and "zw" */
5154 		++no_mapping;
5155 		++allow_keys;   /* no mapping for nchar, but allow key codes */
5156 		nchar = plain_vgetc();
5157 		LANGMAP_ADJUST(nchar, TRUE);
5158 		--no_mapping;
5159 		--allow_keys;
5160 #ifdef FEAT_CMDL_INFO
5161 		(void)add_to_showcmd(nchar);
5162 #endif
5163 		if (vim_strchr((char_u *)"gGwW", nchar) == NULL)
5164 		{
5165 		    clearopbeep(cap->oap);
5166 		    break;
5167 		}
5168 		undo = TRUE;
5169 		/*FALLTHROUGH*/
5170 
5171     case 'g':	/* "zg": add good word to word list */
5172     case 'w':	/* "zw": add wrong word to word list */
5173     case 'G':	/* "zG": add good word to temp word list */
5174     case 'W':	/* "zW": add wrong word to temp word list */
5175 		{
5176 		    char_u  *ptr = NULL;
5177 		    int	    len;
5178 
5179 		    if (checkclearop(cap->oap))
5180 			break;
5181 		    if (VIsual_active && get_visual_text(cap, &ptr, &len)
5182 								      == FAIL)
5183 			return;
5184 		    if (ptr == NULL)
5185 		    {
5186 			pos_T	pos = curwin->w_cursor;
5187 
5188 			/* Find bad word under the cursor.  When 'spell' is
5189 			 * off this fails and find_ident_under_cursor() is
5190 			 * used below. */
5191 			emsg_off++;
5192 			len = spell_move_to(curwin, FORWARD, TRUE, TRUE, NULL);
5193 			emsg_off--;
5194 			if (len != 0 && curwin->w_cursor.col <= pos.col)
5195 			    ptr = ml_get_pos(&curwin->w_cursor);
5196 			curwin->w_cursor = pos;
5197 		    }
5198 
5199 		    if (ptr == NULL && (len = find_ident_under_cursor(&ptr,
5200 							    FIND_IDENT)) == 0)
5201 			return;
5202 		    spell_add_word(ptr, len, nchar == 'w' || nchar == 'W',
5203 					    (nchar == 'G' || nchar == 'W')
5204 						       ? 0 : (int)cap->count1,
5205 					    undo);
5206 		}
5207 		break;
5208 
5209     case '=':	/* "z=": suggestions for a badly spelled word  */
5210 		if (!checkclearop(cap->oap))
5211 		    spell_suggest((int)cap->count0);
5212 		break;
5213 #endif
5214 
5215     default:	clearopbeep(cap->oap);
5216     }
5217 
5218 #ifdef FEAT_FOLDING
5219     /* Redraw when 'foldenable' changed */
5220     if (old_fen != curwin->w_p_fen)
5221     {
5222 # ifdef FEAT_DIFF
5223 	win_T	    *wp;
5224 
5225 	if (foldmethodIsDiff(curwin) && curwin->w_p_scb)
5226 	{
5227 	    /* Adjust 'foldenable' in diff-synced windows. */
5228 	    FOR_ALL_WINDOWS(wp)
5229 	    {
5230 		if (wp != curwin && foldmethodIsDiff(wp) && wp->w_p_scb)
5231 		{
5232 		    wp->w_p_fen = curwin->w_p_fen;
5233 		    changed_window_setting_win(wp);
5234 		}
5235 	    }
5236 	}
5237 # endif
5238 	changed_window_setting();
5239     }
5240 
5241     /* Redraw when 'foldlevel' changed. */
5242     if (old_fdl != curwin->w_p_fdl)
5243 	newFoldLevel();
5244 #endif
5245 }
5246 
5247 #ifdef FEAT_GUI
5248 /*
5249  * Vertical scrollbar movement.
5250  */
5251     static void
5252 nv_ver_scrollbar(cap)
5253     cmdarg_T	*cap;
5254 {
5255     if (cap->oap->op_type != OP_NOP)
5256 	clearopbeep(cap->oap);
5257 
5258     /* Even if an operator was pending, we still want to scroll */
5259     gui_do_scroll();
5260 }
5261 
5262 /*
5263  * Horizontal scrollbar movement.
5264  */
5265     static void
5266 nv_hor_scrollbar(cap)
5267     cmdarg_T	*cap;
5268 {
5269     if (cap->oap->op_type != OP_NOP)
5270 	clearopbeep(cap->oap);
5271 
5272     /* Even if an operator was pending, we still want to scroll */
5273     gui_do_horiz_scroll(scrollbar_value, FALSE);
5274 }
5275 #endif
5276 
5277 #if defined(FEAT_GUI_TABLINE) || defined(PROTO)
5278 /*
5279  * Click in GUI tab.
5280  */
5281     static void
5282 nv_tabline(cap)
5283     cmdarg_T	*cap;
5284 {
5285     if (cap->oap->op_type != OP_NOP)
5286 	clearopbeep(cap->oap);
5287 
5288     /* Even if an operator was pending, we still want to jump tabs. */
5289     goto_tabpage(current_tab);
5290 }
5291 
5292 /*
5293  * Selected item in tab line menu.
5294  */
5295     static void
5296 nv_tabmenu(cap)
5297     cmdarg_T	*cap;
5298 {
5299     if (cap->oap->op_type != OP_NOP)
5300 	clearopbeep(cap->oap);
5301 
5302     /* Even if an operator was pending, we still want to jump tabs. */
5303     handle_tabmenu();
5304 }
5305 
5306 /*
5307  * Handle selecting an item of the GUI tab line menu.
5308  * Used in Normal and Insert mode.
5309  */
5310     void
5311 handle_tabmenu()
5312 {
5313     switch (current_tabmenu)
5314     {
5315 	case TABLINE_MENU_CLOSE:
5316 	    if (current_tab == 0)
5317 		do_cmdline_cmd((char_u *)"tabclose");
5318 	    else
5319 	    {
5320 		vim_snprintf((char *)IObuff, IOSIZE, "tabclose %d",
5321 								 current_tab);
5322 		do_cmdline_cmd(IObuff);
5323 	    }
5324 	    break;
5325 
5326 	case TABLINE_MENU_NEW:
5327 	    if (current_tab == 0)
5328 		do_cmdline_cmd((char_u *)"$tabnew");
5329 	    else
5330 	    {
5331 		vim_snprintf((char *)IObuff, IOSIZE, "%dtabnew",
5332 							     current_tab - 1);
5333 		do_cmdline_cmd(IObuff);
5334 	    }
5335 	    break;
5336 
5337 	case TABLINE_MENU_OPEN:
5338 	    if (current_tab == 0)
5339 		do_cmdline_cmd((char_u *)"browse $tabnew");
5340 	    else
5341 	    {
5342 		vim_snprintf((char *)IObuff, IOSIZE, "browse %dtabnew",
5343 							     current_tab - 1);
5344 		do_cmdline_cmd(IObuff);
5345 	    }
5346 	    break;
5347     }
5348 }
5349 #endif
5350 
5351 /*
5352  * "Q" command.
5353  */
5354     static void
5355 nv_exmode(cap)
5356     cmdarg_T	*cap;
5357 {
5358     /*
5359      * Ignore 'Q' in Visual mode, just give a beep.
5360      */
5361     if (VIsual_active)
5362 	vim_beep(BO_EX);
5363     else if (!checkclearop(cap->oap))
5364 	do_exmode(FALSE);
5365 }
5366 
5367 /*
5368  * Handle a ":" command.
5369  */
5370     static void
5371 nv_colon(cap)
5372     cmdarg_T  *cap;
5373 {
5374     int	    old_p_im;
5375     int	    cmd_result;
5376 
5377     if (VIsual_active)
5378 	nv_operator(cap);
5379     else
5380     {
5381 	if (cap->oap->op_type != OP_NOP)
5382 	{
5383 	    /* Using ":" as a movement is characterwise exclusive. */
5384 	    cap->oap->motion_type = MCHAR;
5385 	    cap->oap->inclusive = FALSE;
5386 	}
5387 	else if (cap->count0)
5388 	{
5389 	    /* translate "count:" into ":.,.+(count - 1)" */
5390 	    stuffcharReadbuff('.');
5391 	    if (cap->count0 > 1)
5392 	    {
5393 		stuffReadbuff((char_u *)",.+");
5394 		stuffnumReadbuff((long)cap->count0 - 1L);
5395 	    }
5396 	}
5397 
5398 	/* When typing, don't type below an old message */
5399 	if (KeyTyped)
5400 	    compute_cmdrow();
5401 
5402 	old_p_im = p_im;
5403 
5404 	/* get a command line and execute it */
5405 	cmd_result = do_cmdline(NULL, getexline, NULL,
5406 			    cap->oap->op_type != OP_NOP ? DOCMD_KEEPLINE : 0);
5407 
5408 	/* If 'insertmode' changed, enter or exit Insert mode */
5409 	if (p_im != old_p_im)
5410 	{
5411 	    if (p_im)
5412 		restart_edit = 'i';
5413 	    else
5414 		restart_edit = 0;
5415 	}
5416 
5417 	if (cmd_result == FAIL)
5418 	    /* The Ex command failed, do not execute the operator. */
5419 	    clearop(cap->oap);
5420 	else if (cap->oap->op_type != OP_NOP
5421 		&& (cap->oap->start.lnum > curbuf->b_ml.ml_line_count
5422 		    || cap->oap->start.col >
5423 			       (colnr_T)STRLEN(ml_get(cap->oap->start.lnum))
5424 		    || did_emsg
5425 		    ))
5426 	    /* The start of the operator has become invalid by the Ex command.
5427 	     */
5428 	    clearopbeep(cap->oap);
5429     }
5430 }
5431 
5432 /*
5433  * Handle CTRL-G command.
5434  */
5435     static void
5436 nv_ctrlg(cap)
5437     cmdarg_T *cap;
5438 {
5439     if (VIsual_active)	/* toggle Selection/Visual mode */
5440     {
5441 	VIsual_select = !VIsual_select;
5442 	showmode();
5443     }
5444     else if (!checkclearop(cap->oap))
5445 	/* print full name if count given or :cd used */
5446 	fileinfo((int)cap->count0, FALSE, TRUE);
5447 }
5448 
5449 /*
5450  * Handle CTRL-H <Backspace> command.
5451  */
5452     static void
5453 nv_ctrlh(cap)
5454     cmdarg_T *cap;
5455 {
5456     if (VIsual_active && VIsual_select)
5457     {
5458 	cap->cmdchar = 'x';	/* BS key behaves like 'x' in Select mode */
5459 	v_visop(cap);
5460     }
5461     else
5462 	nv_left(cap);
5463 }
5464 
5465 /*
5466  * CTRL-L: clear screen and redraw.
5467  */
5468     static void
5469 nv_clear(cap)
5470     cmdarg_T	*cap;
5471 {
5472     if (!checkclearop(cap->oap))
5473     {
5474 #if defined(__BEOS__) && !USE_THREAD_FOR_INPUT_WITH_TIMEOUT
5475 	/*
5476 	 * Right now, the BeBox doesn't seem to have an easy way to detect
5477 	 * window resizing, so we cheat and make the user detect it
5478 	 * manually with CTRL-L instead
5479 	 */
5480 	ui_get_shellsize();
5481 #endif
5482 #ifdef FEAT_SYN_HL
5483 	/* Clear all syntax states to force resyncing. */
5484 	syn_stack_free_all(curwin->w_s);
5485 #endif
5486 	redraw_later(CLEAR);
5487     }
5488 }
5489 
5490 /*
5491  * CTRL-O: In Select mode: switch to Visual mode for one command.
5492  * Otherwise: Go to older pcmark.
5493  */
5494     static void
5495 nv_ctrlo(cap)
5496     cmdarg_T	*cap;
5497 {
5498     if (VIsual_active && VIsual_select)
5499     {
5500 	VIsual_select = FALSE;
5501 	showmode();
5502 	restart_VIsual_select = 2;	/* restart Select mode later */
5503     }
5504     else
5505     {
5506 	cap->count1 = -cap->count1;
5507 	nv_pcmark(cap);
5508     }
5509 }
5510 
5511 /*
5512  * CTRL-^ command, short for ":e #"
5513  */
5514     static void
5515 nv_hat(cap)
5516     cmdarg_T	*cap;
5517 {
5518     if (!checkclearopq(cap->oap))
5519 	(void)buflist_getfile((int)cap->count0, (linenr_T)0,
5520 						GETF_SETMARK|GETF_ALT, FALSE);
5521 }
5522 
5523 /*
5524  * "Z" commands.
5525  */
5526     static void
5527 nv_Zet(cap)
5528     cmdarg_T *cap;
5529 {
5530     if (!checkclearopq(cap->oap))
5531     {
5532 	switch (cap->nchar)
5533 	{
5534 			/* "ZZ": equivalent to ":x". */
5535 	    case 'Z':	do_cmdline_cmd((char_u *)"x");
5536 			break;
5537 
5538 			/* "ZQ": equivalent to ":q!" (Elvis compatible). */
5539 	    case 'Q':	do_cmdline_cmd((char_u *)"q!");
5540 			break;
5541 
5542 	    default:	clearopbeep(cap->oap);
5543 	}
5544     }
5545 }
5546 
5547 #if defined(FEAT_WINDOWS) || defined(PROTO)
5548 /*
5549  * Call nv_ident() as if "c1" was used, with "c2" as next character.
5550  */
5551     void
5552 do_nv_ident(c1, c2)
5553     int		c1;
5554     int		c2;
5555 {
5556     oparg_T	oa;
5557     cmdarg_T	ca;
5558 
5559     clear_oparg(&oa);
5560     vim_memset(&ca, 0, sizeof(ca));
5561     ca.oap = &oa;
5562     ca.cmdchar = c1;
5563     ca.nchar = c2;
5564     nv_ident(&ca);
5565 }
5566 #endif
5567 
5568 /*
5569  * Handle the commands that use the word under the cursor.
5570  * [g] CTRL-]	:ta to current identifier
5571  * [g] 'K'	run program for current identifier
5572  * [g] '*'	/ to current identifier or string
5573  * [g] '#'	? to current identifier or string
5574  *  g  ']'	:tselect for current identifier
5575  */
5576     static void
5577 nv_ident(cap)
5578     cmdarg_T	*cap;
5579 {
5580     char_u	*ptr = NULL;
5581     char_u	*buf;
5582     char_u	*newbuf;
5583     char_u	*p;
5584     char_u	*kp;		/* value of 'keywordprg' */
5585     int		kp_help;	/* 'keywordprg' is ":help" */
5586     int		n = 0;		/* init for GCC */
5587     int		cmdchar;
5588     int		g_cmd;		/* "g" command */
5589     int		tag_cmd = FALSE;
5590     char_u	*aux_ptr;
5591     int		isman;
5592     int		isman_s;
5593 
5594     if (cap->cmdchar == 'g')	/* "g*", "g#", "g]" and "gCTRL-]" */
5595     {
5596 	cmdchar = cap->nchar;
5597 	g_cmd = TRUE;
5598     }
5599     else
5600     {
5601 	cmdchar = cap->cmdchar;
5602 	g_cmd = FALSE;
5603     }
5604 
5605     if (cmdchar == POUND)	/* the pound sign, '#' for English keyboards */
5606 	cmdchar = '#';
5607 
5608     /*
5609      * The "]", "CTRL-]" and "K" commands accept an argument in Visual mode.
5610      */
5611     if (cmdchar == ']' || cmdchar == Ctrl_RSB || cmdchar == 'K')
5612     {
5613 	if (VIsual_active && get_visual_text(cap, &ptr, &n) == FAIL)
5614 	    return;
5615 	if (checkclearopq(cap->oap))
5616 	    return;
5617     }
5618 
5619     if (ptr == NULL && (n = find_ident_under_cursor(&ptr,
5620 		    (cmdchar == '*' || cmdchar == '#')
5621 				 ? FIND_IDENT|FIND_STRING : FIND_IDENT)) == 0)
5622     {
5623 	clearop(cap->oap);
5624 	return;
5625     }
5626 
5627     /* Allocate buffer to put the command in.  Inserting backslashes can
5628      * double the length of the word.  p_kp / curbuf->b_p_kp could be added
5629      * and some numbers. */
5630     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
5631     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
5632 						 || STRCMP(kp, ":help") == 0);
5633     buf = alloc((unsigned)(n * 2 + 30 + STRLEN(kp)));
5634     if (buf == NULL)
5635 	return;
5636     buf[0] = NUL;
5637 
5638     switch (cmdchar)
5639     {
5640 	case '*':
5641 	case '#':
5642 	    /*
5643 	     * Put cursor at start of word, makes search skip the word
5644 	     * under the cursor.
5645 	     * Call setpcmark() first, so "*``" puts the cursor back where
5646 	     * it was.
5647 	     */
5648 	    setpcmark();
5649 	    curwin->w_cursor.col = (colnr_T) (ptr - ml_get_curline());
5650 
5651 	    if (!g_cmd && vim_iswordp(ptr))
5652 		STRCPY(buf, "\\<");
5653 	    no_smartcase = TRUE;	/* don't use 'smartcase' now */
5654 	    break;
5655 
5656 	case 'K':
5657 	    if (kp_help)
5658 		STRCPY(buf, "he! ");
5659 	    else
5660 	    {
5661 		/* An external command will probably use an argument starting
5662 		 * with "-" as an option.  To avoid trouble we skip the "-". */
5663 		while (*ptr == '-' && n > 0)
5664 		{
5665 		    ++ptr;
5666 		    --n;
5667 		}
5668 		if (n == 0)
5669 		{
5670 		    EMSG(_(e_noident));	 /* found dashes only */
5671 		    vim_free(buf);
5672 		    return;
5673 		}
5674 
5675 		/* When a count is given, turn it into a range.  Is this
5676 		 * really what we want? */
5677 		isman = (STRCMP(kp, "man") == 0);
5678 		isman_s = (STRCMP(kp, "man -s") == 0);
5679 		if (cap->count0 != 0 && !(isman || isman_s))
5680 		    sprintf((char *)buf, ".,.+%ld", cap->count0 - 1);
5681 
5682 		STRCAT(buf, "! ");
5683 		if (cap->count0 == 0 && isman_s)
5684 		    STRCAT(buf, "man");
5685 		else
5686 		    STRCAT(buf, kp);
5687 		STRCAT(buf, " ");
5688 		if (cap->count0 != 0 && (isman || isman_s))
5689 		{
5690 		    sprintf((char *)buf + STRLEN(buf), "%ld", cap->count0);
5691 		    STRCAT(buf, " ");
5692 		}
5693 	    }
5694 	    break;
5695 
5696 	case ']':
5697 	    tag_cmd = TRUE;
5698 #ifdef FEAT_CSCOPE
5699 	    if (p_cst)
5700 		STRCPY(buf, "cstag ");
5701 	    else
5702 #endif
5703 		STRCPY(buf, "ts ");
5704 	    break;
5705 
5706 	default:
5707 	    tag_cmd = TRUE;
5708 	    if (curbuf->b_help)
5709 		STRCPY(buf, "he! ");
5710 	    else
5711 	    {
5712 		if (g_cmd)
5713 		    STRCPY(buf, "tj ");
5714 		else
5715 		    sprintf((char *)buf, "%ldta ", cap->count0);
5716 	    }
5717     }
5718 
5719     /*
5720      * Now grab the chars in the identifier
5721      */
5722     if (cmdchar == 'K' && !kp_help)
5723     {
5724 	/* Escape the argument properly for a shell command */
5725 	ptr = vim_strnsave(ptr, n);
5726 	p = vim_strsave_shellescape(ptr, TRUE, TRUE);
5727 	vim_free(ptr);
5728 	if (p == NULL)
5729 	{
5730 	    vim_free(buf);
5731 	    return;
5732 	}
5733 	newbuf = (char_u *)vim_realloc(buf, STRLEN(buf) + STRLEN(p) + 1);
5734 	if (newbuf == NULL)
5735 	{
5736 	    vim_free(buf);
5737 	    vim_free(p);
5738 	    return;
5739 	}
5740 	buf = newbuf;
5741 	STRCAT(buf, p);
5742 	vim_free(p);
5743     }
5744     else
5745     {
5746 	if (cmdchar == '*')
5747 	    aux_ptr = (char_u *)(p_magic ? "/.*~[^$\\" : "/^$\\");
5748 	else if (cmdchar == '#')
5749 	    aux_ptr = (char_u *)(p_magic ? "/?.*~[^$\\" : "/?^$\\");
5750 	else if (tag_cmd)
5751 	{
5752 	    if (curbuf->b_help)
5753 		/* ":help" handles unescaped argument */
5754 		aux_ptr = (char_u *)"";
5755 	    else
5756 		aux_ptr = (char_u *)"\\|\"\n[";
5757 	}
5758 	else
5759 	    aux_ptr = (char_u *)"\\|\"\n*?[";
5760 
5761 	p = buf + STRLEN(buf);
5762 	while (n-- > 0)
5763 	{
5764 	    /* put a backslash before \ and some others */
5765 	    if (vim_strchr(aux_ptr, *ptr) != NULL)
5766 		*p++ = '\\';
5767 #ifdef FEAT_MBYTE
5768 	    /* When current byte is a part of multibyte character, copy all
5769 	     * bytes of that character. */
5770 	    if (has_mbyte)
5771 	    {
5772 		int i;
5773 		int len = (*mb_ptr2len)(ptr) - 1;
5774 
5775 		for (i = 0; i < len && n >= 1; ++i, --n)
5776 		    *p++ = *ptr++;
5777 	    }
5778 #endif
5779 	    *p++ = *ptr++;
5780 	}
5781 	*p = NUL;
5782     }
5783 
5784     /*
5785      * Execute the command.
5786      */
5787     if (cmdchar == '*' || cmdchar == '#')
5788     {
5789 	if (!g_cmd && (
5790 #ifdef FEAT_MBYTE
5791 		has_mbyte ? vim_iswordp(mb_prevptr(ml_get_curline(), ptr)) :
5792 #endif
5793 		vim_iswordc(ptr[-1])))
5794 	    STRCAT(buf, "\\>");
5795 #ifdef FEAT_CMDHIST
5796 	/* put pattern in search history */
5797 	init_history();
5798 	add_to_history(HIST_SEARCH, buf, TRUE, NUL);
5799 #endif
5800 	(void)normal_search(cap, cmdchar == '*' ? '/' : '?', buf, 0);
5801     }
5802     else
5803 	do_cmdline_cmd(buf);
5804 
5805     vim_free(buf);
5806 }
5807 
5808 /*
5809  * Get visually selected text, within one line only.
5810  * Returns FAIL if more than one line selected.
5811  */
5812     int
5813 get_visual_text(cap, pp, lenp)
5814     cmdarg_T	*cap;
5815     char_u	**pp;	    /* return: start of selected text */
5816     int		*lenp;	    /* return: length of selected text */
5817 {
5818     if (VIsual_mode != 'V')
5819 	unadjust_for_sel();
5820     if (VIsual.lnum != curwin->w_cursor.lnum)
5821     {
5822 	if (cap != NULL)
5823 	    clearopbeep(cap->oap);
5824 	return FAIL;
5825     }
5826     if (VIsual_mode == 'V')
5827     {
5828 	*pp = ml_get_curline();
5829 	*lenp = (int)STRLEN(*pp);
5830     }
5831     else
5832     {
5833 	if (lt(curwin->w_cursor, VIsual))
5834 	{
5835 	    *pp = ml_get_pos(&curwin->w_cursor);
5836 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
5837 	}
5838 	else
5839 	{
5840 	    *pp = ml_get_pos(&VIsual);
5841 	    *lenp = curwin->w_cursor.col - VIsual.col + 1;
5842 	}
5843 #ifdef FEAT_MBYTE
5844 	if (has_mbyte)
5845 	    /* Correct the length to include the whole last character. */
5846 	    *lenp += (*mb_ptr2len)(*pp + (*lenp - 1)) - 1;
5847 #endif
5848     }
5849     reset_VIsual_and_resel();
5850     return OK;
5851 }
5852 
5853 /*
5854  * CTRL-T: backwards in tag stack
5855  */
5856     static void
5857 nv_tagpop(cap)
5858     cmdarg_T	*cap;
5859 {
5860     if (!checkclearopq(cap->oap))
5861 	do_tag((char_u *)"", DT_POP, (int)cap->count1, FALSE, TRUE);
5862 }
5863 
5864 /*
5865  * Handle scrolling command 'H', 'L' and 'M'.
5866  */
5867     static void
5868 nv_scroll(cap)
5869     cmdarg_T  *cap;
5870 {
5871     int		used = 0;
5872     long	n;
5873 #ifdef FEAT_FOLDING
5874     linenr_T	lnum;
5875 #endif
5876     int		half;
5877 
5878     cap->oap->motion_type = MLINE;
5879     setpcmark();
5880 
5881     if (cap->cmdchar == 'L')
5882     {
5883 	validate_botline();	    /* make sure curwin->w_botline is valid */
5884 	curwin->w_cursor.lnum = curwin->w_botline - 1;
5885 	if (cap->count1 - 1 >= curwin->w_cursor.lnum)
5886 	    curwin->w_cursor.lnum = 1;
5887 	else
5888 	{
5889 #ifdef FEAT_FOLDING
5890 	    if (hasAnyFolding(curwin))
5891 	    {
5892 		/* Count a fold for one screen line. */
5893 		for (n = cap->count1 - 1; n > 0
5894 			    && curwin->w_cursor.lnum > curwin->w_topline; --n)
5895 		{
5896 		    (void)hasFolding(curwin->w_cursor.lnum,
5897 						&curwin->w_cursor.lnum, NULL);
5898 		    --curwin->w_cursor.lnum;
5899 		}
5900 	    }
5901 	    else
5902 #endif
5903 		curwin->w_cursor.lnum -= cap->count1 - 1;
5904 	}
5905     }
5906     else
5907     {
5908 	if (cap->cmdchar == 'M')
5909 	{
5910 #ifdef FEAT_DIFF
5911 	    /* Don't count filler lines above the window. */
5912 	    used -= diff_check_fill(curwin, curwin->w_topline)
5913 							  - curwin->w_topfill;
5914 #endif
5915 	    validate_botline();	    /* make sure w_empty_rows is valid */
5916 	    half = (curwin->w_height - curwin->w_empty_rows + 1) / 2;
5917 	    for (n = 0; curwin->w_topline + n < curbuf->b_ml.ml_line_count; ++n)
5918 	    {
5919 #ifdef FEAT_DIFF
5920 		/* Count half he number of filler lines to be "below this
5921 		 * line" and half to be "above the next line". */
5922 		if (n > 0 && used + diff_check_fill(curwin, curwin->w_topline
5923 							     + n) / 2 >= half)
5924 		{
5925 		    --n;
5926 		    break;
5927 		}
5928 #endif
5929 		used += plines(curwin->w_topline + n);
5930 		if (used >= half)
5931 		    break;
5932 #ifdef FEAT_FOLDING
5933 		if (hasFolding(curwin->w_topline + n, NULL, &lnum))
5934 		    n = lnum - curwin->w_topline;
5935 #endif
5936 	    }
5937 	    if (n > 0 && used > curwin->w_height)
5938 		--n;
5939 	}
5940 	else /* (cap->cmdchar == 'H') */
5941 	{
5942 	    n = cap->count1 - 1;
5943 #ifdef FEAT_FOLDING
5944 	    if (hasAnyFolding(curwin))
5945 	    {
5946 		/* Count a fold for one screen line. */
5947 		lnum = curwin->w_topline;
5948 		while (n-- > 0 && lnum < curwin->w_botline - 1)
5949 		{
5950 		    hasFolding(lnum, NULL, &lnum);
5951 		    ++lnum;
5952 		}
5953 		n = lnum - curwin->w_topline;
5954 	    }
5955 #endif
5956 	}
5957 	curwin->w_cursor.lnum = curwin->w_topline + n;
5958 	if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
5959 	    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
5960     }
5961 
5962     cursor_correct();	/* correct for 'so' */
5963     beginline(BL_SOL | BL_FIX);
5964 }
5965 
5966 /*
5967  * Cursor right commands.
5968  */
5969     static void
5970 nv_right(cap)
5971     cmdarg_T	*cap;
5972 {
5973     long	n;
5974     int		past_line;
5975 
5976     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
5977     {
5978 	/* <C-Right> and <S-Right> move a word or WORD right */
5979 	if (mod_mask & MOD_MASK_CTRL)
5980 	    cap->arg = TRUE;
5981 	nv_wordcmd(cap);
5982 	return;
5983     }
5984 
5985     cap->oap->motion_type = MCHAR;
5986     cap->oap->inclusive = FALSE;
5987     past_line = (VIsual_active && *p_sel != 'o');
5988 
5989 #ifdef FEAT_VIRTUALEDIT
5990     /*
5991      * In virtual edit mode, there's no such thing as "past_line", as lines
5992      * are (theoretically) infinitely long.
5993      */
5994     if (virtual_active())
5995 	past_line = 0;
5996 #endif
5997 
5998     for (n = cap->count1; n > 0; --n)
5999     {
6000 	if ((!past_line && oneright() == FAIL)
6001 		|| (past_line && *ml_get_cursor() == NUL)
6002 		)
6003 	{
6004 	    /*
6005 	     *	  <Space> wraps to next line if 'whichwrap' has 's'.
6006 	     *	      'l' wraps to next line if 'whichwrap' has 'l'.
6007 	     * CURS_RIGHT wraps to next line if 'whichwrap' has '>'.
6008 	     */
6009 	    if (       ((cap->cmdchar == ' '
6010 			    && vim_strchr(p_ww, 's') != NULL)
6011 			|| (cap->cmdchar == 'l'
6012 			    && vim_strchr(p_ww, 'l') != NULL)
6013 			|| (cap->cmdchar == K_RIGHT
6014 			    && vim_strchr(p_ww, '>') != NULL))
6015 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
6016 	    {
6017 		/* When deleting we also count the NL as a character.
6018 		 * Set cap->oap->inclusive when last char in the line is
6019 		 * included, move to next line after that */
6020 		if (	   cap->oap->op_type != OP_NOP
6021 			&& !cap->oap->inclusive
6022 			&& !lineempty(curwin->w_cursor.lnum))
6023 		    cap->oap->inclusive = TRUE;
6024 		else
6025 		{
6026 		    ++curwin->w_cursor.lnum;
6027 		    curwin->w_cursor.col = 0;
6028 #ifdef FEAT_VIRTUALEDIT
6029 		    curwin->w_cursor.coladd = 0;
6030 #endif
6031 		    curwin->w_set_curswant = TRUE;
6032 		    cap->oap->inclusive = FALSE;
6033 		}
6034 		continue;
6035 	    }
6036 	    if (cap->oap->op_type == OP_NOP)
6037 	    {
6038 		/* Only beep and flush if not moved at all */
6039 		if (n == cap->count1)
6040 		    beep_flush();
6041 	    }
6042 	    else
6043 	    {
6044 		if (!lineempty(curwin->w_cursor.lnum))
6045 		    cap->oap->inclusive = TRUE;
6046 	    }
6047 	    break;
6048 	}
6049 	else if (past_line)
6050 	{
6051 	    curwin->w_set_curswant = TRUE;
6052 #ifdef FEAT_VIRTUALEDIT
6053 	    if (virtual_active())
6054 		oneright();
6055 	    else
6056 #endif
6057 	    {
6058 #ifdef FEAT_MBYTE
6059 		if (has_mbyte)
6060 		    curwin->w_cursor.col +=
6061 					 (*mb_ptr2len)(ml_get_cursor());
6062 		else
6063 #endif
6064 		    ++curwin->w_cursor.col;
6065 	    }
6066 	}
6067     }
6068 #ifdef FEAT_FOLDING
6069     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
6070 					       && cap->oap->op_type == OP_NOP)
6071 	foldOpenCursor();
6072 #endif
6073 }
6074 
6075 /*
6076  * Cursor left commands.
6077  *
6078  * Returns TRUE when operator end should not be adjusted.
6079  */
6080     static void
6081 nv_left(cap)
6082     cmdarg_T	*cap;
6083 {
6084     long	n;
6085 
6086     if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
6087     {
6088 	/* <C-Left> and <S-Left> move a word or WORD left */
6089 	if (mod_mask & MOD_MASK_CTRL)
6090 	    cap->arg = 1;
6091 	nv_bck_word(cap);
6092 	return;
6093     }
6094 
6095     cap->oap->motion_type = MCHAR;
6096     cap->oap->inclusive = FALSE;
6097     for (n = cap->count1; n > 0; --n)
6098     {
6099 	if (oneleft() == FAIL)
6100 	{
6101 	    /* <BS> and <Del> wrap to previous line if 'whichwrap' has 'b'.
6102 	     *		 'h' wraps to previous line if 'whichwrap' has 'h'.
6103 	     *	   CURS_LEFT wraps to previous line if 'whichwrap' has '<'.
6104 	     */
6105 	    if (       (((cap->cmdchar == K_BS
6106 				|| cap->cmdchar == Ctrl_H)
6107 			    && vim_strchr(p_ww, 'b') != NULL)
6108 			|| (cap->cmdchar == 'h'
6109 			    && vim_strchr(p_ww, 'h') != NULL)
6110 			|| (cap->cmdchar == K_LEFT
6111 			    && vim_strchr(p_ww, '<') != NULL))
6112 		    && curwin->w_cursor.lnum > 1)
6113 	    {
6114 		--(curwin->w_cursor.lnum);
6115 		coladvance((colnr_T)MAXCOL);
6116 		curwin->w_set_curswant = TRUE;
6117 
6118 		/* When the NL before the first char has to be deleted we
6119 		 * put the cursor on the NUL after the previous line.
6120 		 * This is a very special case, be careful!
6121 		 * Don't adjust op_end now, otherwise it won't work. */
6122 		if (	   (cap->oap->op_type == OP_DELETE
6123 			    || cap->oap->op_type == OP_CHANGE)
6124 			&& !lineempty(curwin->w_cursor.lnum))
6125 		{
6126 		    char_u *cp = ml_get_cursor();
6127 
6128 		    if (*cp != NUL)
6129 		    {
6130 #ifdef FEAT_MBYTE
6131 			if (has_mbyte)
6132 			    curwin->w_cursor.col += (*mb_ptr2len)(cp);
6133 			else
6134 #endif
6135 			    ++curwin->w_cursor.col;
6136 		    }
6137 		    cap->retval |= CA_NO_ADJ_OP_END;
6138 		}
6139 		continue;
6140 	    }
6141 	    /* Only beep and flush if not moved at all */
6142 	    else if (cap->oap->op_type == OP_NOP && n == cap->count1)
6143 		beep_flush();
6144 	    break;
6145 	}
6146     }
6147 #ifdef FEAT_FOLDING
6148     if (n != cap->count1 && (fdo_flags & FDO_HOR) && KeyTyped
6149 					       && cap->oap->op_type == OP_NOP)
6150 	foldOpenCursor();
6151 #endif
6152 }
6153 
6154 /*
6155  * Cursor up commands.
6156  * cap->arg is TRUE for "-": Move cursor to first non-blank.
6157  */
6158     static void
6159 nv_up(cap)
6160     cmdarg_T	*cap;
6161 {
6162     if (mod_mask & MOD_MASK_SHIFT)
6163     {
6164 	/* <S-Up> is page up */
6165 	cap->arg = BACKWARD;
6166 	nv_page(cap);
6167     }
6168     else
6169     {
6170 	cap->oap->motion_type = MLINE;
6171 	if (cursor_up(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
6172 	    clearopbeep(cap->oap);
6173 	else if (cap->arg)
6174 	    beginline(BL_WHITE | BL_FIX);
6175     }
6176 }
6177 
6178 /*
6179  * Cursor down commands.
6180  * cap->arg is TRUE for CR and "+": Move cursor to first non-blank.
6181  */
6182     static void
6183 nv_down(cap)
6184     cmdarg_T	*cap;
6185 {
6186     if (mod_mask & MOD_MASK_SHIFT)
6187     {
6188 	/* <S-Down> is page down */
6189 	cap->arg = FORWARD;
6190 	nv_page(cap);
6191     }
6192     else
6193 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
6194     /* In a quickfix window a <CR> jumps to the error under the cursor. */
6195     if (bt_quickfix(curbuf) && cap->cmdchar == CAR)
6196 	if (curwin->w_llist_ref == NULL)
6197 	    do_cmdline_cmd((char_u *)".cc");	/* quickfix window */
6198 	else
6199 	    do_cmdline_cmd((char_u *)".ll");	/* location list window */
6200     else
6201 #endif
6202     {
6203 #ifdef FEAT_CMDWIN
6204 	/* In the cmdline window a <CR> executes the command. */
6205 	if (cmdwin_type != 0 && cap->cmdchar == CAR)
6206 	    cmdwin_result = CAR;
6207 	else
6208 #endif
6209 	{
6210 	    cap->oap->motion_type = MLINE;
6211 	    if (cursor_down(cap->count1, cap->oap->op_type == OP_NOP) == FAIL)
6212 		clearopbeep(cap->oap);
6213 	    else if (cap->arg)
6214 		beginline(BL_WHITE | BL_FIX);
6215 	}
6216     }
6217 }
6218 
6219 #ifdef FEAT_SEARCHPATH
6220 /*
6221  * Grab the file name under the cursor and edit it.
6222  */
6223     static void
6224 nv_gotofile(cap)
6225     cmdarg_T	*cap;
6226 {
6227     char_u	*ptr;
6228     linenr_T	lnum = -1;
6229 
6230     if (text_locked())
6231     {
6232 	clearopbeep(cap->oap);
6233 	text_locked_msg();
6234 	return;
6235     }
6236 #ifdef FEAT_AUTOCMD
6237     if (curbuf_locked())
6238     {
6239 	clearop(cap->oap);
6240 	return;
6241     }
6242 #endif
6243 
6244     ptr = grab_file_name(cap->count1, &lnum);
6245 
6246     if (ptr != NULL)
6247     {
6248 	/* do autowrite if necessary */
6249 	if (curbufIsChanged() && curbuf->b_nwindows <= 1 && !P_HID(curbuf))
6250 	    autowrite(curbuf, FALSE);
6251 	setpcmark();
6252 	(void)do_ecmd(0, ptr, NULL, NULL, ECMD_LAST,
6253 				       P_HID(curbuf) ? ECMD_HIDE : 0, curwin);
6254 	if (cap->nchar == 'F' && lnum >= 0)
6255 	{
6256 	    curwin->w_cursor.lnum = lnum;
6257 	    check_cursor_lnum();
6258 	    beginline(BL_SOL | BL_FIX);
6259 	}
6260 	vim_free(ptr);
6261     }
6262     else
6263 	clearop(cap->oap);
6264 }
6265 #endif
6266 
6267 /*
6268  * <End> command: to end of current line or last line.
6269  */
6270     static void
6271 nv_end(cap)
6272     cmdarg_T	*cap;
6273 {
6274     if (cap->arg || (mod_mask & MOD_MASK_CTRL))	/* CTRL-END = goto last line */
6275     {
6276 	cap->arg = TRUE;
6277 	nv_goto(cap);
6278 	cap->count1 = 1;		/* to end of current line */
6279     }
6280     nv_dollar(cap);
6281 }
6282 
6283 /*
6284  * Handle the "$" command.
6285  */
6286     static void
6287 nv_dollar(cap)
6288     cmdarg_T	*cap;
6289 {
6290     cap->oap->motion_type = MCHAR;
6291     cap->oap->inclusive = TRUE;
6292 #ifdef FEAT_VIRTUALEDIT
6293     /* In virtual mode when off the edge of a line and an operator
6294      * is pending (whew!) keep the cursor where it is.
6295      * Otherwise, send it to the end of the line. */
6296     if (!virtual_active() || gchar_cursor() != NUL
6297 					       || cap->oap->op_type == OP_NOP)
6298 #endif
6299 	curwin->w_curswant = MAXCOL;	/* so we stay at the end */
6300     if (cursor_down((long)(cap->count1 - 1),
6301 					 cap->oap->op_type == OP_NOP) == FAIL)
6302 	clearopbeep(cap->oap);
6303 #ifdef FEAT_FOLDING
6304     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6305 	foldOpenCursor();
6306 #endif
6307 }
6308 
6309 /*
6310  * Implementation of '?' and '/' commands.
6311  * If cap->arg is TRUE don't set PC mark.
6312  */
6313     static void
6314 nv_search(cap)
6315     cmdarg_T	    *cap;
6316 {
6317     oparg_T	*oap = cap->oap;
6318 
6319     if (cap->cmdchar == '?' && cap->oap->op_type == OP_ROT13)
6320     {
6321 	/* Translate "g??" to "g?g?" */
6322 	cap->cmdchar = 'g';
6323 	cap->nchar = '?';
6324 	nv_operator(cap);
6325 	return;
6326     }
6327 
6328     cap->searchbuf = getcmdline(cap->cmdchar, cap->count1, 0);
6329 
6330     if (cap->searchbuf == NULL)
6331     {
6332 	clearop(oap);
6333 	return;
6334     }
6335 
6336     (void)normal_search(cap, cap->cmdchar, cap->searchbuf,
6337 						(cap->arg ? 0 : SEARCH_MARK));
6338 }
6339 
6340 /*
6341  * Handle "N" and "n" commands.
6342  * cap->arg is SEARCH_REV for "N", 0 for "n".
6343  */
6344     static void
6345 nv_next(cap)
6346     cmdarg_T	*cap;
6347 {
6348     pos_T old = curwin->w_cursor;
6349     int   i = normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
6350 
6351     if (i == 1 && equalpos(old, curwin->w_cursor))
6352     {
6353 	/* Avoid getting stuck on the current cursor position, which can
6354 	 * happen when an offset is given and the cursor is on the last char
6355 	 * in the buffer: Repeat with count + 1. */
6356 	cap->count1 += 1;
6357 	(void)normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
6358 	cap->count1 -= 1;
6359     }
6360 }
6361 
6362 /*
6363  * Search for "pat" in direction "dir" ('/' or '?', 0 for repeat).
6364  * Uses only cap->count1 and cap->oap from "cap".
6365  * Return 0 for failure, 1 for found, 2 for found and line offset added.
6366  */
6367     static int
6368 normal_search(cap, dir, pat, opt)
6369     cmdarg_T	*cap;
6370     int		dir;
6371     char_u	*pat;
6372     int		opt;		/* extra flags for do_search() */
6373 {
6374     int		i;
6375 
6376     cap->oap->motion_type = MCHAR;
6377     cap->oap->inclusive = FALSE;
6378     cap->oap->use_reg_one = TRUE;
6379     curwin->w_set_curswant = TRUE;
6380 
6381     i = do_search(cap->oap, dir, pat, cap->count1,
6382 			   opt | SEARCH_OPT | SEARCH_ECHO | SEARCH_MSG, NULL);
6383     if (i == 0)
6384 	clearop(cap->oap);
6385     else
6386     {
6387 	if (i == 2)
6388 	    cap->oap->motion_type = MLINE;
6389 #ifdef FEAT_VIRTUALEDIT
6390 	curwin->w_cursor.coladd = 0;
6391 #endif
6392 #ifdef FEAT_FOLDING
6393 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6394 	    foldOpenCursor();
6395 #endif
6396     }
6397 
6398     /* "/$" will put the cursor after the end of the line, may need to
6399      * correct that here */
6400     check_cursor();
6401     return i;
6402 }
6403 
6404 /*
6405  * Character search commands.
6406  * cap->arg is BACKWARD for 'F' and 'T', FORWARD for 'f' and 't', TRUE for
6407  * ',' and FALSE for ';'.
6408  * cap->nchar is NUL for ',' and ';' (repeat the search)
6409  */
6410     static void
6411 nv_csearch(cap)
6412     cmdarg_T	*cap;
6413 {
6414     int		t_cmd;
6415 
6416     if (cap->cmdchar == 't' || cap->cmdchar == 'T')
6417 	t_cmd = TRUE;
6418     else
6419 	t_cmd = FALSE;
6420 
6421     cap->oap->motion_type = MCHAR;
6422     if (IS_SPECIAL(cap->nchar) || searchc(cap, t_cmd) == FAIL)
6423 	clearopbeep(cap->oap);
6424     else
6425     {
6426 	curwin->w_set_curswant = TRUE;
6427 #ifdef FEAT_VIRTUALEDIT
6428 	/* Include a Tab for "tx" and for "dfx". */
6429 	if (gchar_cursor() == TAB && virtual_active() && cap->arg == FORWARD
6430 		&& (t_cmd || cap->oap->op_type != OP_NOP))
6431 	{
6432 	    colnr_T	scol, ecol;
6433 
6434 	    getvcol(curwin, &curwin->w_cursor, &scol, NULL, &ecol);
6435 	    curwin->w_cursor.coladd = ecol - scol;
6436 	}
6437 	else
6438 	    curwin->w_cursor.coladd = 0;
6439 #endif
6440 	adjust_for_sel(cap);
6441 #ifdef FEAT_FOLDING
6442 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
6443 	    foldOpenCursor();
6444 #endif
6445     }
6446 }
6447 
6448 /*
6449  * "[" and "]" commands.
6450  * cap->arg is BACKWARD for "[" and FORWARD for "]".
6451  */
6452     static void
6453 nv_brackets(cap)
6454     cmdarg_T	*cap;
6455 {
6456     pos_T	new_pos = INIT_POS_T(0, 0, 0);
6457     pos_T	prev_pos;
6458     pos_T	*pos = NULL;	    /* init for GCC */
6459     pos_T	old_pos;	    /* cursor position before command */
6460     int		flag;
6461     long	n;
6462     int		findc;
6463     int		c;
6464 
6465     cap->oap->motion_type = MCHAR;
6466     cap->oap->inclusive = FALSE;
6467     old_pos = curwin->w_cursor;
6468 #ifdef FEAT_VIRTUALEDIT
6469     curwin->w_cursor.coladd = 0;	    /* TODO: don't do this for an error. */
6470 #endif
6471 
6472 #ifdef FEAT_SEARCHPATH
6473     /*
6474      * "[f" or "]f" : Edit file under the cursor (same as "gf")
6475      */
6476     if (cap->nchar == 'f')
6477 	nv_gotofile(cap);
6478     else
6479 #endif
6480 
6481 #ifdef FEAT_FIND_ID
6482     /*
6483      * Find the occurrence(s) of the identifier or define under cursor
6484      * in current and included files or jump to the first occurrence.
6485      *
6486      *			search	     list	    jump
6487      *		      fwd   bwd    fwd	 bwd	 fwd	bwd
6488      * identifier     "]i"  "[i"   "]I"  "[I"	"]^I"  "[^I"
6489      * define	      "]d"  "[d"   "]D"  "[D"	"]^D"  "[^D"
6490      */
6491     if (vim_strchr((char_u *)
6492 #ifdef EBCDIC
6493 		"iI\005dD\067",
6494 #else
6495 		"iI\011dD\004",
6496 #endif
6497 		cap->nchar) != NULL)
6498     {
6499 	char_u	*ptr;
6500 	int	len;
6501 
6502 	if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0)
6503 	    clearop(cap->oap);
6504 	else
6505 	{
6506 	    find_pattern_in_path(ptr, 0, len, TRUE,
6507 		cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
6508 		((cap->nchar & 0xf) == ('d' & 0xf)) ?  FIND_DEFINE : FIND_ANY,
6509 		cap->count1,
6510 		isupper(cap->nchar) ? ACTION_SHOW_ALL :
6511 			    islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
6512 		cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
6513 		(linenr_T)MAXLNUM);
6514 	    curwin->w_set_curswant = TRUE;
6515 	}
6516     }
6517     else
6518 #endif
6519 
6520     /*
6521      * "[{", "[(", "]}" or "])": go to Nth unclosed '{', '(', '}' or ')'
6522      * "[#", "]#": go to start/end of Nth innermost #if..#endif construct.
6523      * "[/", "[*", "]/", "]*": go to Nth comment start/end.
6524      * "[m" or "]m" search for prev/next start of (Java) method.
6525      * "[M" or "]M" search for prev/next end of (Java) method.
6526      */
6527     if (  (cap->cmdchar == '['
6528 		&& vim_strchr((char_u *)"{(*/#mM", cap->nchar) != NULL)
6529 	    || (cap->cmdchar == ']'
6530 		&& vim_strchr((char_u *)"})*/#mM", cap->nchar) != NULL))
6531     {
6532 	if (cap->nchar == '*')
6533 	    cap->nchar = '/';
6534 	prev_pos.lnum = 0;
6535 	if (cap->nchar == 'm' || cap->nchar == 'M')
6536 	{
6537 	    if (cap->cmdchar == '[')
6538 		findc = '{';
6539 	    else
6540 		findc = '}';
6541 	    n = 9999;
6542 	}
6543 	else
6544 	{
6545 	    findc = cap->nchar;
6546 	    n = cap->count1;
6547 	}
6548 	for ( ; n > 0; --n)
6549 	{
6550 	    if ((pos = findmatchlimit(cap->oap, findc,
6551 		(cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD, 0)) == NULL)
6552 	    {
6553 		if (new_pos.lnum == 0)	/* nothing found */
6554 		{
6555 		    if (cap->nchar != 'm' && cap->nchar != 'M')
6556 			clearopbeep(cap->oap);
6557 		}
6558 		else
6559 		    pos = &new_pos;	/* use last one found */
6560 		break;
6561 	    }
6562 	    prev_pos = new_pos;
6563 	    curwin->w_cursor = *pos;
6564 	    new_pos = *pos;
6565 	}
6566 	curwin->w_cursor = old_pos;
6567 
6568 	/*
6569 	 * Handle "[m", "]m", "[M" and "[M".  The findmatchlimit() only
6570 	 * brought us to the match for "[m" and "]M" when inside a method.
6571 	 * Try finding the '{' or '}' we want to be at.
6572 	 * Also repeat for the given count.
6573 	 */
6574 	if (cap->nchar == 'm' || cap->nchar == 'M')
6575 	{
6576 	    /* norm is TRUE for "]M" and "[m" */
6577 	    int	    norm = ((findc == '{') == (cap->nchar == 'm'));
6578 
6579 	    n = cap->count1;
6580 	    /* found a match: we were inside a method */
6581 	    if (prev_pos.lnum != 0)
6582 	    {
6583 		pos = &prev_pos;
6584 		curwin->w_cursor = prev_pos;
6585 		if (norm)
6586 		    --n;
6587 	    }
6588 	    else
6589 		pos = NULL;
6590 	    while (n > 0)
6591 	    {
6592 		for (;;)
6593 		{
6594 		    if ((findc == '{' ? dec_cursor() : inc_cursor()) < 0)
6595 		    {
6596 			/* if not found anything, that's an error */
6597 			if (pos == NULL)
6598 			    clearopbeep(cap->oap);
6599 			n = 0;
6600 			break;
6601 		    }
6602 		    c = gchar_cursor();
6603 		    if (c == '{' || c == '}')
6604 		    {
6605 			/* Must have found end/start of class: use it.
6606 			 * Or found the place to be at. */
6607 			if ((c == findc && norm) || (n == 1 && !norm))
6608 			{
6609 			    new_pos = curwin->w_cursor;
6610 			    pos = &new_pos;
6611 			    n = 0;
6612 			}
6613 			/* if no match found at all, we started outside of the
6614 			 * class and we're inside now.  Just go on. */
6615 			else if (new_pos.lnum == 0)
6616 			{
6617 			    new_pos = curwin->w_cursor;
6618 			    pos = &new_pos;
6619 			}
6620 			/* found start/end of other method: go to match */
6621 			else if ((pos = findmatchlimit(cap->oap, findc,
6622 			    (cap->cmdchar == '[') ? FM_BACKWARD : FM_FORWARD,
6623 								  0)) == NULL)
6624 			    n = 0;
6625 			else
6626 			    curwin->w_cursor = *pos;
6627 			break;
6628 		    }
6629 		}
6630 		--n;
6631 	    }
6632 	    curwin->w_cursor = old_pos;
6633 	    if (pos == NULL && new_pos.lnum != 0)
6634 		clearopbeep(cap->oap);
6635 	}
6636 	if (pos != NULL)
6637 	{
6638 	    setpcmark();
6639 	    curwin->w_cursor = *pos;
6640 	    curwin->w_set_curswant = TRUE;
6641 #ifdef FEAT_FOLDING
6642 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped
6643 					       && cap->oap->op_type == OP_NOP)
6644 		foldOpenCursor();
6645 #endif
6646 	}
6647     }
6648 
6649     /*
6650      * "[[", "[]", "]]" and "][": move to start or end of function
6651      */
6652     else if (cap->nchar == '[' || cap->nchar == ']')
6653     {
6654 	if (cap->nchar == cap->cmdchar)		    /* "]]" or "[[" */
6655 	    flag = '{';
6656 	else
6657 	    flag = '}';		    /* "][" or "[]" */
6658 
6659 	curwin->w_set_curswant = TRUE;
6660 	/*
6661 	 * Imitate strange Vi behaviour: When using "]]" with an operator
6662 	 * we also stop at '}'.
6663 	 */
6664 	if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, flag,
6665 	      (cap->oap->op_type != OP_NOP
6666 				      && cap->arg == FORWARD && flag == '{')))
6667 	    clearopbeep(cap->oap);
6668 	else
6669 	{
6670 	    if (cap->oap->op_type == OP_NOP)
6671 		beginline(BL_WHITE | BL_FIX);
6672 #ifdef FEAT_FOLDING
6673 	    if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6674 		foldOpenCursor();
6675 #endif
6676 	}
6677     }
6678 
6679     /*
6680      * "[p", "[P", "]P" and "]p": put with indent adjustment
6681      */
6682     else if (cap->nchar == 'p' || cap->nchar == 'P')
6683     {
6684 	if (!checkclearop(cap->oap))
6685 	{
6686 	    int	    dir = (cap->cmdchar == ']' && cap->nchar == 'p')
6687 							 ? FORWARD : BACKWARD;
6688 	    int	    regname = cap->oap->regname;
6689 	    int	    was_visual = VIsual_active;
6690 	    int	    line_count = curbuf->b_ml.ml_line_count;
6691 	    pos_T   start, end;
6692 
6693 	    if (VIsual_active)
6694 	    {
6695 		start = ltoreq(VIsual, curwin->w_cursor)
6696 						  ? VIsual : curwin->w_cursor;
6697 		end =  equalpos(start,VIsual) ? curwin->w_cursor : VIsual;
6698 		curwin->w_cursor = (dir == BACKWARD ? start : end);
6699 	    }
6700 # ifdef FEAT_CLIPBOARD
6701 	    adjust_clip_reg(&regname);
6702 # endif
6703 	    prep_redo_cmd(cap);
6704 
6705 	    do_put(regname, dir, cap->count1, PUT_FIXINDENT);
6706 	    if (was_visual)
6707 	    {
6708 		VIsual = start;
6709 		curwin->w_cursor = end;
6710 		if (dir == BACKWARD)
6711 		{
6712 		    /* adjust lines */
6713 		    VIsual.lnum += curbuf->b_ml.ml_line_count - line_count;
6714 		    curwin->w_cursor.lnum +=
6715 				      curbuf->b_ml.ml_line_count - line_count;
6716 		}
6717 
6718 		VIsual_active = TRUE;
6719 		if (VIsual_mode == 'V')
6720 		{
6721 		    /* delete visually selected lines */
6722 		    cap->cmdchar = 'd';
6723 		    cap->nchar = NUL;
6724 		    cap->oap->regname = regname;
6725 		    nv_operator(cap);
6726 		    do_pending_operator(cap, 0, FALSE);
6727 		}
6728 		if (VIsual_active)
6729 		{
6730 		    end_visual_mode();
6731 		    redraw_later(SOME_VALID);
6732 		}
6733 	    }
6734 	}
6735     }
6736 
6737     /*
6738      * "['", "[`", "]'" and "]`": jump to next mark
6739      */
6740     else if (cap->nchar == '\'' || cap->nchar == '`')
6741     {
6742 	pos = &curwin->w_cursor;
6743 	for (n = cap->count1; n > 0; --n)
6744 	{
6745 	    prev_pos = *pos;
6746 	    pos = getnextmark(pos, cap->cmdchar == '[' ? BACKWARD : FORWARD,
6747 							  cap->nchar == '\'');
6748 	    if (pos == NULL)
6749 		break;
6750 	}
6751 	if (pos == NULL)
6752 	    pos = &prev_pos;
6753 	nv_cursormark(cap, cap->nchar == '\'', pos);
6754     }
6755 
6756 #ifdef FEAT_MOUSE
6757     /*
6758      * [ or ] followed by a middle mouse click: put selected text with
6759      * indent adjustment.  Any other button just does as usual.
6760      */
6761     else if (cap->nchar >= K_RIGHTRELEASE && cap->nchar <= K_LEFTMOUSE)
6762     {
6763 	(void)do_mouse(cap->oap, cap->nchar,
6764 		       (cap->cmdchar == ']') ? FORWARD : BACKWARD,
6765 		       cap->count1, PUT_FIXINDENT);
6766     }
6767 #endif /* FEAT_MOUSE */
6768 
6769 #ifdef FEAT_FOLDING
6770     /*
6771      * "[z" and "]z": move to start or end of open fold.
6772      */
6773     else if (cap->nchar == 'z')
6774     {
6775 	if (foldMoveTo(FALSE, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6776 							 cap->count1) == FAIL)
6777 	    clearopbeep(cap->oap);
6778     }
6779 #endif
6780 
6781 #ifdef FEAT_DIFF
6782     /*
6783      * "[c" and "]c": move to next or previous diff-change.
6784      */
6785     else if (cap->nchar == 'c')
6786     {
6787 	if (diff_move_to(cap->cmdchar == ']' ? FORWARD : BACKWARD,
6788 							 cap->count1) == FAIL)
6789 	    clearopbeep(cap->oap);
6790     }
6791 #endif
6792 
6793 #ifdef FEAT_SPELL
6794     /*
6795      * "[s", "[S", "]s" and "]S": move to next spell error.
6796      */
6797     else if (cap->nchar == 's' || cap->nchar == 'S')
6798     {
6799 	setpcmark();
6800 	for (n = 0; n < cap->count1; ++n)
6801 	    if (spell_move_to(curwin, cap->cmdchar == ']' ? FORWARD : BACKWARD,
6802 			  cap->nchar == 's' ? TRUE : FALSE, FALSE, NULL) == 0)
6803 	    {
6804 		clearopbeep(cap->oap);
6805 		break;
6806 	    }
6807 # ifdef FEAT_FOLDING
6808 	if (cap->oap->op_type == OP_NOP && (fdo_flags & FDO_SEARCH) && KeyTyped)
6809 	    foldOpenCursor();
6810 # endif
6811     }
6812 #endif
6813 
6814     /* Not a valid cap->nchar. */
6815     else
6816 	clearopbeep(cap->oap);
6817 }
6818 
6819 /*
6820  * Handle Normal mode "%" command.
6821  */
6822     static void
6823 nv_percent(cap)
6824     cmdarg_T	*cap;
6825 {
6826     pos_T	*pos;
6827 #if defined(FEAT_FOLDING)
6828     linenr_T	lnum = curwin->w_cursor.lnum;
6829 #endif
6830 
6831     cap->oap->inclusive = TRUE;
6832     if (cap->count0)	    /* {cnt}% : goto {cnt} percentage in file */
6833     {
6834 	if (cap->count0 > 100)
6835 	    clearopbeep(cap->oap);
6836 	else
6837 	{
6838 	    cap->oap->motion_type = MLINE;
6839 	    setpcmark();
6840 	    /* Round up, so CTRL-G will give same value.  Watch out for a
6841 	     * large line count, the line number must not go negative! */
6842 	    if (curbuf->b_ml.ml_line_count > 1000000)
6843 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count + 99L)
6844 							 / 100L * cap->count0;
6845 	    else
6846 		curwin->w_cursor.lnum = (curbuf->b_ml.ml_line_count *
6847 						    cap->count0 + 99L) / 100L;
6848 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
6849 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6850 	    beginline(BL_SOL | BL_FIX);
6851 	}
6852     }
6853     else		    /* "%" : go to matching paren */
6854     {
6855 	cap->oap->motion_type = MCHAR;
6856 	cap->oap->use_reg_one = TRUE;
6857 	if ((pos = findmatch(cap->oap, NUL)) == NULL)
6858 	    clearopbeep(cap->oap);
6859 	else
6860 	{
6861 	    setpcmark();
6862 	    curwin->w_cursor = *pos;
6863 	    curwin->w_set_curswant = TRUE;
6864 #ifdef FEAT_VIRTUALEDIT
6865 	    curwin->w_cursor.coladd = 0;
6866 #endif
6867 	    adjust_for_sel(cap);
6868 	}
6869     }
6870 #ifdef FEAT_FOLDING
6871     if (cap->oap->op_type == OP_NOP
6872 	    && lnum != curwin->w_cursor.lnum
6873 	    && (fdo_flags & FDO_PERCENT)
6874 	    && KeyTyped)
6875 	foldOpenCursor();
6876 #endif
6877 }
6878 
6879 /*
6880  * Handle "(" and ")" commands.
6881  * cap->arg is BACKWARD for "(" and FORWARD for ")".
6882  */
6883     static void
6884 nv_brace(cap)
6885     cmdarg_T	*cap;
6886 {
6887     cap->oap->motion_type = MCHAR;
6888     cap->oap->use_reg_one = TRUE;
6889     /* The motion used to be inclusive for "(", but that is not what Vi does. */
6890     cap->oap->inclusive = FALSE;
6891     curwin->w_set_curswant = TRUE;
6892 
6893     if (findsent(cap->arg, cap->count1) == FAIL)
6894 	clearopbeep(cap->oap);
6895     else
6896     {
6897 	/* Don't leave the cursor on the NUL past end of line. */
6898 	adjust_cursor(cap->oap);
6899 #ifdef FEAT_VIRTUALEDIT
6900 	curwin->w_cursor.coladd = 0;
6901 #endif
6902 #ifdef FEAT_FOLDING
6903 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6904 	    foldOpenCursor();
6905 #endif
6906     }
6907 }
6908 
6909 /*
6910  * "m" command: Mark a position.
6911  */
6912     static void
6913 nv_mark(cap)
6914     cmdarg_T	*cap;
6915 {
6916     if (!checkclearop(cap->oap))
6917     {
6918 	if (setmark(cap->nchar) == FAIL)
6919 	    clearopbeep(cap->oap);
6920     }
6921 }
6922 
6923 /*
6924  * "{" and "}" commands.
6925  * cmd->arg is BACKWARD for "{" and FORWARD for "}".
6926  */
6927     static void
6928 nv_findpar(cap)
6929     cmdarg_T	*cap;
6930 {
6931     cap->oap->motion_type = MCHAR;
6932     cap->oap->inclusive = FALSE;
6933     cap->oap->use_reg_one = TRUE;
6934     curwin->w_set_curswant = TRUE;
6935     if (!findpar(&cap->oap->inclusive, cap->arg, cap->count1, NUL, FALSE))
6936 	clearopbeep(cap->oap);
6937     else
6938     {
6939 #ifdef FEAT_VIRTUALEDIT
6940 	curwin->w_cursor.coladd = 0;
6941 #endif
6942 #ifdef FEAT_FOLDING
6943 	if ((fdo_flags & FDO_BLOCK) && KeyTyped && cap->oap->op_type == OP_NOP)
6944 	    foldOpenCursor();
6945 #endif
6946     }
6947 }
6948 
6949 /*
6950  * "u" command: Undo or make lower case.
6951  */
6952     static void
6953 nv_undo(cap)
6954     cmdarg_T	*cap;
6955 {
6956     if (cap->oap->op_type == OP_LOWER || VIsual_active)
6957     {
6958 	/* translate "<Visual>u" to "<Visual>gu" and "guu" to "gugu" */
6959 	cap->cmdchar = 'g';
6960 	cap->nchar = 'u';
6961 	nv_operator(cap);
6962     }
6963     else
6964 	nv_kundo(cap);
6965 }
6966 
6967 /*
6968  * <Undo> command.
6969  */
6970     static void
6971 nv_kundo(cap)
6972     cmdarg_T	*cap;
6973 {
6974     if (!checkclearopq(cap->oap))
6975     {
6976 	u_undo((int)cap->count1);
6977 	curwin->w_set_curswant = TRUE;
6978     }
6979 }
6980 
6981 /*
6982  * Handle the "r" command.
6983  */
6984     static void
6985 nv_replace(cap)
6986     cmdarg_T	*cap;
6987 {
6988     char_u	*ptr;
6989     int		had_ctrl_v;
6990     long	n;
6991 
6992     if (checkclearop(cap->oap))
6993 	return;
6994 
6995     /* get another character */
6996     if (cap->nchar == Ctrl_V)
6997     {
6998 	had_ctrl_v = Ctrl_V;
6999 	cap->nchar = get_literal();
7000 	/* Don't redo a multibyte character with CTRL-V. */
7001 	if (cap->nchar > DEL)
7002 	    had_ctrl_v = NUL;
7003     }
7004     else
7005 	had_ctrl_v = NUL;
7006 
7007     /* Abort if the character is a special key. */
7008     if (IS_SPECIAL(cap->nchar))
7009     {
7010 	clearopbeep(cap->oap);
7011 	return;
7012     }
7013 
7014     /* Visual mode "r" */
7015     if (VIsual_active)
7016     {
7017 	if (got_int)
7018 	    reset_VIsual();
7019 	if (had_ctrl_v)
7020 	{
7021 	    if (cap->nchar == '\r')
7022 		cap->nchar = -1;
7023 	    else if (cap->nchar == '\n')
7024 		cap->nchar = -2;
7025 	}
7026 	nv_operator(cap);
7027 	return;
7028     }
7029 
7030 #ifdef FEAT_VIRTUALEDIT
7031     /* Break tabs, etc. */
7032     if (virtual_active())
7033     {
7034 	if (u_save_cursor() == FAIL)
7035 	    return;
7036 	if (gchar_cursor() == NUL)
7037 	{
7038 	    /* Add extra space and put the cursor on the first one. */
7039 	    coladvance_force((colnr_T)(getviscol() + cap->count1));
7040 	    curwin->w_cursor.col -= cap->count1;
7041 	}
7042 	else if (gchar_cursor() == TAB)
7043 	    coladvance_force(getviscol());
7044     }
7045 #endif
7046 
7047     /* Abort if not enough characters to replace. */
7048     ptr = ml_get_cursor();
7049     if (STRLEN(ptr) < (unsigned)cap->count1
7050 #ifdef FEAT_MBYTE
7051 	    || (has_mbyte && mb_charlen(ptr) < cap->count1)
7052 #endif
7053 	    )
7054     {
7055 	clearopbeep(cap->oap);
7056 	return;
7057     }
7058 
7059     /*
7060      * Replacing with a TAB is done by edit() when it is complicated because
7061      * 'expandtab' or 'smarttab' is set.  CTRL-V TAB inserts a literal TAB.
7062      * Other characters are done below to avoid problems with things like
7063      * CTRL-V 048 (for edit() this would be R CTRL-V 0 ESC).
7064      */
7065     if (had_ctrl_v != Ctrl_V && cap->nchar == '\t' && (curbuf->b_p_et || p_sta))
7066     {
7067 	stuffnumReadbuff(cap->count1);
7068 	stuffcharReadbuff('R');
7069 	stuffcharReadbuff('\t');
7070 	stuffcharReadbuff(ESC);
7071 	return;
7072     }
7073 
7074     /* save line for undo */
7075     if (u_save_cursor() == FAIL)
7076 	return;
7077 
7078     if (had_ctrl_v != Ctrl_V && (cap->nchar == '\r' || cap->nchar == '\n'))
7079     {
7080 	/*
7081 	 * Replace character(s) by a single newline.
7082 	 * Strange vi behaviour: Only one newline is inserted.
7083 	 * Delete the characters here.
7084 	 * Insert the newline with an insert command, takes care of
7085 	 * autoindent.	The insert command depends on being on the last
7086 	 * character of a line or not.
7087 	 */
7088 #ifdef FEAT_MBYTE
7089 	(void)del_chars(cap->count1, FALSE);	/* delete the characters */
7090 #else
7091 	(void)del_bytes(cap->count1, FALSE, FALSE); /* delete the characters */
7092 #endif
7093 	stuffcharReadbuff('\r');
7094 	stuffcharReadbuff(ESC);
7095 
7096 	/* Give 'r' to edit(), to get the redo command right. */
7097 	invoke_edit(cap, TRUE, 'r', FALSE);
7098     }
7099     else
7100     {
7101 	prep_redo(cap->oap->regname, cap->count1,
7102 				       NUL, 'r', NUL, had_ctrl_v, cap->nchar);
7103 
7104 	curbuf->b_op_start = curwin->w_cursor;
7105 #ifdef FEAT_MBYTE
7106 	if (has_mbyte)
7107 	{
7108 	    int		old_State = State;
7109 
7110 	    if (cap->ncharC1 != 0)
7111 		AppendCharToRedobuff(cap->ncharC1);
7112 	    if (cap->ncharC2 != 0)
7113 		AppendCharToRedobuff(cap->ncharC2);
7114 
7115 	    /* This is slow, but it handles replacing a single-byte with a
7116 	     * multi-byte and the other way around.  Also handles adding
7117 	     * composing characters for utf-8. */
7118 	    for (n = cap->count1; n > 0; --n)
7119 	    {
7120 		State = REPLACE;
7121 		if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y)
7122 		{
7123 		    int c = ins_copychar(curwin->w_cursor.lnum
7124 					   + (cap->nchar == Ctrl_Y ? -1 : 1));
7125 		    if (c != NUL)
7126 			ins_char(c);
7127 		    else
7128 			/* will be decremented further down */
7129 			++curwin->w_cursor.col;
7130 		}
7131 		else
7132 		    ins_char(cap->nchar);
7133 		State = old_State;
7134 		if (cap->ncharC1 != 0)
7135 		    ins_char(cap->ncharC1);
7136 		if (cap->ncharC2 != 0)
7137 		    ins_char(cap->ncharC2);
7138 	    }
7139 	}
7140 	else
7141 #endif
7142 	{
7143 	    /*
7144 	     * Replace the characters within one line.
7145 	     */
7146 	    for (n = cap->count1; n > 0; --n)
7147 	    {
7148 		/*
7149 		 * Get ptr again, because u_save and/or showmatch() will have
7150 		 * released the line.  At the same time we let know that the
7151 		 * line will be changed.
7152 		 */
7153 		ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE);
7154 		if (cap->nchar == Ctrl_E || cap->nchar == Ctrl_Y)
7155 		{
7156 		  int c = ins_copychar(curwin->w_cursor.lnum
7157 					   + (cap->nchar == Ctrl_Y ? -1 : 1));
7158 		  if (c != NUL)
7159 		    ptr[curwin->w_cursor.col] = c;
7160 		}
7161 		else
7162 		    ptr[curwin->w_cursor.col] = cap->nchar;
7163 		if (p_sm && msg_silent == 0)
7164 		    showmatch(cap->nchar);
7165 		++curwin->w_cursor.col;
7166 	    }
7167 #ifdef FEAT_NETBEANS_INTG
7168 	    if (netbeans_active())
7169 	    {
7170 		colnr_T  start = (colnr_T)(curwin->w_cursor.col - cap->count1);
7171 
7172 		netbeans_removed(curbuf, curwin->w_cursor.lnum, start,
7173 							   (long)cap->count1);
7174 		netbeans_inserted(curbuf, curwin->w_cursor.lnum, start,
7175 					       &ptr[start], (int)cap->count1);
7176 	    }
7177 #endif
7178 
7179 	    /* mark the buffer as changed and prepare for displaying */
7180 	    changed_bytes(curwin->w_cursor.lnum,
7181 			       (colnr_T)(curwin->w_cursor.col - cap->count1));
7182 	}
7183 	--curwin->w_cursor.col;	    /* cursor on the last replaced char */
7184 #ifdef FEAT_MBYTE
7185 	/* if the character on the left of the current cursor is a multi-byte
7186 	 * character, move two characters left */
7187 	if (has_mbyte)
7188 	    mb_adjust_cursor();
7189 #endif
7190 	curbuf->b_op_end = curwin->w_cursor;
7191 	curwin->w_set_curswant = TRUE;
7192 	set_last_insert(cap->nchar);
7193     }
7194 }
7195 
7196 /*
7197  * 'o': Exchange start and end of Visual area.
7198  * 'O': same, but in block mode exchange left and right corners.
7199  */
7200     static void
7201 v_swap_corners(cmdchar)
7202     int		cmdchar;
7203 {
7204     pos_T	old_cursor;
7205     colnr_T	left, right;
7206 
7207     if (cmdchar == 'O' && VIsual_mode == Ctrl_V)
7208     {
7209 	old_cursor = curwin->w_cursor;
7210 	getvcols(curwin, &old_cursor, &VIsual, &left, &right);
7211 	curwin->w_cursor.lnum = VIsual.lnum;
7212 	coladvance(left);
7213 	VIsual = curwin->w_cursor;
7214 
7215 	curwin->w_cursor.lnum = old_cursor.lnum;
7216 	curwin->w_curswant = right;
7217 	/* 'selection "exclusive" and cursor at right-bottom corner: move it
7218 	 * right one column */
7219 	if (old_cursor.lnum >= VIsual.lnum && *p_sel == 'e')
7220 	    ++curwin->w_curswant;
7221 	coladvance(curwin->w_curswant);
7222 	if (curwin->w_cursor.col == old_cursor.col
7223 #ifdef FEAT_VIRTUALEDIT
7224 		&& (!virtual_active()
7225 		    || curwin->w_cursor.coladd == old_cursor.coladd)
7226 #endif
7227 		)
7228 	{
7229 	    curwin->w_cursor.lnum = VIsual.lnum;
7230 	    if (old_cursor.lnum <= VIsual.lnum && *p_sel == 'e')
7231 		++right;
7232 	    coladvance(right);
7233 	    VIsual = curwin->w_cursor;
7234 
7235 	    curwin->w_cursor.lnum = old_cursor.lnum;
7236 	    coladvance(left);
7237 	    curwin->w_curswant = left;
7238 	}
7239     }
7240     else
7241     {
7242 	old_cursor = curwin->w_cursor;
7243 	curwin->w_cursor = VIsual;
7244 	VIsual = old_cursor;
7245 	curwin->w_set_curswant = TRUE;
7246     }
7247 }
7248 
7249 /*
7250  * "R" (cap->arg is FALSE) and "gR" (cap->arg is TRUE).
7251  */
7252     static void
7253 nv_Replace(cap)
7254     cmdarg_T	    *cap;
7255 {
7256     if (VIsual_active)		/* "R" is replace lines */
7257     {
7258 	cap->cmdchar = 'c';
7259 	cap->nchar = NUL;
7260 	VIsual_mode_orig = VIsual_mode; /* remember original area for gv */
7261 	VIsual_mode = 'V';
7262 	nv_operator(cap);
7263     }
7264     else if (!checkclearopq(cap->oap))
7265     {
7266 	if (!curbuf->b_p_ma)
7267 	    EMSG(_(e_modifiable));
7268 	else
7269 	{
7270 #ifdef FEAT_VIRTUALEDIT
7271 	    if (virtual_active())
7272 		coladvance(getviscol());
7273 #endif
7274 	    invoke_edit(cap, FALSE, cap->arg ? 'V' : 'R', FALSE);
7275 	}
7276     }
7277 }
7278 
7279 #ifdef FEAT_VREPLACE
7280 /*
7281  * "gr".
7282  */
7283     static void
7284 nv_vreplace(cap)
7285     cmdarg_T	*cap;
7286 {
7287     if (VIsual_active)
7288     {
7289 	cap->cmdchar = 'r';
7290 	cap->nchar = cap->extra_char;
7291 	nv_replace(cap);	/* Do same as "r" in Visual mode for now */
7292     }
7293     else if (!checkclearopq(cap->oap))
7294     {
7295 	if (!curbuf->b_p_ma)
7296 	    EMSG(_(e_modifiable));
7297 	else
7298 	{
7299 	    if (cap->extra_char == Ctrl_V)	/* get another character */
7300 		cap->extra_char = get_literal();
7301 	    stuffcharReadbuff(cap->extra_char);
7302 	    stuffcharReadbuff(ESC);
7303 # ifdef FEAT_VIRTUALEDIT
7304 	    if (virtual_active())
7305 		coladvance(getviscol());
7306 # endif
7307 	    invoke_edit(cap, TRUE, 'v', FALSE);
7308 	}
7309     }
7310 }
7311 #endif
7312 
7313 /*
7314  * Swap case for "~" command, when it does not work like an operator.
7315  */
7316     static void
7317 n_swapchar(cap)
7318     cmdarg_T	*cap;
7319 {
7320     long	n;
7321     pos_T	startpos;
7322     int		did_change = 0;
7323 #ifdef FEAT_NETBEANS_INTG
7324     pos_T	pos;
7325     char_u	*ptr;
7326     int		count;
7327 #endif
7328 
7329     if (checkclearopq(cap->oap))
7330 	return;
7331 
7332     if (lineempty(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
7333     {
7334 	clearopbeep(cap->oap);
7335 	return;
7336     }
7337 
7338     prep_redo_cmd(cap);
7339 
7340     if (u_save_cursor() == FAIL)
7341 	return;
7342 
7343     startpos = curwin->w_cursor;
7344 #ifdef FEAT_NETBEANS_INTG
7345     pos = startpos;
7346 #endif
7347     for (n = cap->count1; n > 0; --n)
7348     {
7349 	did_change |= swapchar(cap->oap->op_type, &curwin->w_cursor);
7350 	inc_cursor();
7351 	if (gchar_cursor() == NUL)
7352 	{
7353 	    if (vim_strchr(p_ww, '~') != NULL
7354 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
7355 	    {
7356 #ifdef FEAT_NETBEANS_INTG
7357 		if (netbeans_active())
7358 		{
7359 		    if (did_change)
7360 		    {
7361 			ptr = ml_get(pos.lnum);
7362 			count = (int)STRLEN(ptr) - pos.col;
7363 			netbeans_removed(curbuf, pos.lnum, pos.col,
7364 								 (long)count);
7365 			netbeans_inserted(curbuf, pos.lnum, pos.col,
7366 							&ptr[pos.col], count);
7367 		    }
7368 		    pos.col = 0;
7369 		    pos.lnum++;
7370 		}
7371 #endif
7372 		++curwin->w_cursor.lnum;
7373 		curwin->w_cursor.col = 0;
7374 		if (n > 1)
7375 		{
7376 		    if (u_savesub(curwin->w_cursor.lnum) == FAIL)
7377 			break;
7378 		    u_clearline();
7379 		}
7380 	    }
7381 	    else
7382 		break;
7383 	}
7384     }
7385 #ifdef FEAT_NETBEANS_INTG
7386     if (did_change && netbeans_active())
7387     {
7388 	ptr = ml_get(pos.lnum);
7389 	count = curwin->w_cursor.col - pos.col;
7390 	netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
7391 	netbeans_inserted(curbuf, pos.lnum, pos.col, &ptr[pos.col], count);
7392     }
7393 #endif
7394 
7395 
7396     check_cursor();
7397     curwin->w_set_curswant = TRUE;
7398     if (did_change)
7399     {
7400 	changed_lines(startpos.lnum, startpos.col, curwin->w_cursor.lnum + 1,
7401 									  0L);
7402 	curbuf->b_op_start = startpos;
7403 	curbuf->b_op_end = curwin->w_cursor;
7404 	if (curbuf->b_op_end.col > 0)
7405 	    --curbuf->b_op_end.col;
7406     }
7407 }
7408 
7409 /*
7410  * Move cursor to mark.
7411  */
7412     static void
7413 nv_cursormark(cap, flag, pos)
7414     cmdarg_T	*cap;
7415     int		flag;
7416     pos_T	*pos;
7417 {
7418     if (check_mark(pos) == FAIL)
7419 	clearop(cap->oap);
7420     else
7421     {
7422 	if (cap->cmdchar == '\''
7423 		|| cap->cmdchar == '`'
7424 		|| cap->cmdchar == '['
7425 		|| cap->cmdchar == ']')
7426 	    setpcmark();
7427 	curwin->w_cursor = *pos;
7428 	if (flag)
7429 	    beginline(BL_WHITE | BL_FIX);
7430 	else
7431 	    check_cursor();
7432     }
7433     cap->oap->motion_type = flag ? MLINE : MCHAR;
7434     if (cap->cmdchar == '`')
7435 	cap->oap->use_reg_one = TRUE;
7436     cap->oap->inclusive = FALSE;		/* ignored if not MCHAR */
7437     curwin->w_set_curswant = TRUE;
7438 }
7439 
7440 /*
7441  * Handle commands that are operators in Visual mode.
7442  */
7443     static void
7444 v_visop(cap)
7445     cmdarg_T	*cap;
7446 {
7447     static char_u trans[] = "YyDdCcxdXdAAIIrr";
7448 
7449     /* Uppercase means linewise, except in block mode, then "D" deletes till
7450      * the end of the line, and "C" replaces till EOL */
7451     if (isupper(cap->cmdchar))
7452     {
7453 	if (VIsual_mode != Ctrl_V)
7454 	{
7455 	    VIsual_mode_orig = VIsual_mode;
7456 	    VIsual_mode = 'V';
7457 	}
7458 	else if (cap->cmdchar == 'C' || cap->cmdchar == 'D')
7459 	    curwin->w_curswant = MAXCOL;
7460     }
7461     cap->cmdchar = *(vim_strchr(trans, cap->cmdchar) + 1);
7462     nv_operator(cap);
7463 }
7464 
7465 /*
7466  * "s" and "S" commands.
7467  */
7468     static void
7469 nv_subst(cap)
7470     cmdarg_T	*cap;
7471 {
7472     if (VIsual_active)	/* "vs" and "vS" are the same as "vc" */
7473     {
7474 	if (cap->cmdchar == 'S')
7475 	{
7476 	    VIsual_mode_orig = VIsual_mode;
7477 	    VIsual_mode = 'V';
7478 	}
7479 	cap->cmdchar = 'c';
7480 	nv_operator(cap);
7481     }
7482     else
7483 	nv_optrans(cap);
7484 }
7485 
7486 /*
7487  * Abbreviated commands.
7488  */
7489     static void
7490 nv_abbrev(cap)
7491     cmdarg_T	*cap;
7492 {
7493     if (cap->cmdchar == K_DEL || cap->cmdchar == K_KDEL)
7494 	cap->cmdchar = 'x';		/* DEL key behaves like 'x' */
7495 
7496     /* in Visual mode these commands are operators */
7497     if (VIsual_active)
7498 	v_visop(cap);
7499     else
7500 	nv_optrans(cap);
7501 }
7502 
7503 /*
7504  * Translate a command into another command.
7505  */
7506     static void
7507 nv_optrans(cap)
7508     cmdarg_T	*cap;
7509 {
7510     static char_u *(ar[8]) = {(char_u *)"dl", (char_u *)"dh",
7511 			      (char_u *)"d$", (char_u *)"c$",
7512 			      (char_u *)"cl", (char_u *)"cc",
7513 			      (char_u *)"yy", (char_u *)":s\r"};
7514     static char_u *str = (char_u *)"xXDCsSY&";
7515 
7516     if (!checkclearopq(cap->oap))
7517     {
7518 	/* In Vi "2D" doesn't delete the next line.  Can't translate it
7519 	 * either, because "2." should also not use the count. */
7520 	if (cap->cmdchar == 'D' && vim_strchr(p_cpo, CPO_HASH) != NULL)
7521 	{
7522 	    cap->oap->start = curwin->w_cursor;
7523 	    cap->oap->op_type = OP_DELETE;
7524 #ifdef FEAT_EVAL
7525 	    set_op_var(OP_DELETE);
7526 #endif
7527 	    cap->count1 = 1;
7528 	    nv_dollar(cap);
7529 	    finish_op = TRUE;
7530 	    ResetRedobuff();
7531 	    AppendCharToRedobuff('D');
7532 	}
7533 	else
7534 	{
7535 	    if (cap->count0)
7536 		stuffnumReadbuff(cap->count0);
7537 	    stuffReadbuff(ar[(int)(vim_strchr(str, cap->cmdchar) - str)]);
7538 	}
7539     }
7540     cap->opcount = 0;
7541 }
7542 
7543 /*
7544  * "'" and "`" commands.  Also for "g'" and "g`".
7545  * cap->arg is TRUE for "'" and "g'".
7546  */
7547     static void
7548 nv_gomark(cap)
7549     cmdarg_T	*cap;
7550 {
7551     pos_T	*pos;
7552     int		c;
7553 #ifdef FEAT_FOLDING
7554     pos_T	old_cursor = curwin->w_cursor;
7555     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7556 #endif
7557 
7558     if (cap->cmdchar == 'g')
7559 	c = cap->extra_char;
7560     else
7561 	c = cap->nchar;
7562     pos = getmark(c, (cap->oap->op_type == OP_NOP));
7563     if (pos == (pos_T *)-1)	    /* jumped to other file */
7564     {
7565 	if (cap->arg)
7566 	{
7567 	    check_cursor_lnum();
7568 	    beginline(BL_WHITE | BL_FIX);
7569 	}
7570 	else
7571 	    check_cursor();
7572     }
7573     else
7574 	nv_cursormark(cap, cap->arg, pos);
7575 
7576 #ifdef FEAT_VIRTUALEDIT
7577     /* May need to clear the coladd that a mark includes. */
7578     if (!virtual_active())
7579 	curwin->w_cursor.coladd = 0;
7580 #endif
7581 #ifdef FEAT_FOLDING
7582     if (cap->oap->op_type == OP_NOP
7583 	    && pos != NULL
7584 	    && (pos == (pos_T *)-1 || !equalpos(old_cursor, *pos))
7585 	    && (fdo_flags & FDO_MARK)
7586 	    && old_KeyTyped)
7587 	foldOpenCursor();
7588 #endif
7589 }
7590 
7591 /*
7592  * Handle CTRL-O, CTRL-I, "g;" and "g," commands.
7593  */
7594     static void
7595 nv_pcmark(cap)
7596     cmdarg_T	*cap;
7597 {
7598 #ifdef FEAT_JUMPLIST
7599     pos_T	*pos;
7600 # ifdef FEAT_FOLDING
7601     linenr_T	lnum = curwin->w_cursor.lnum;
7602     int		old_KeyTyped = KeyTyped;    /* getting file may reset it */
7603 # endif
7604 
7605     if (!checkclearopq(cap->oap))
7606     {
7607 	if (cap->cmdchar == 'g')
7608 	    pos = movechangelist((int)cap->count1);
7609 	else
7610 	    pos = movemark((int)cap->count1);
7611 	if (pos == (pos_T *)-1)		/* jump to other file */
7612 	{
7613 	    curwin->w_set_curswant = TRUE;
7614 	    check_cursor();
7615 	}
7616 	else if (pos != NULL)		    /* can jump */
7617 	    nv_cursormark(cap, FALSE, pos);
7618 	else if (cap->cmdchar == 'g')
7619 	{
7620 	    if (curbuf->b_changelistlen == 0)
7621 		EMSG(_("E664: changelist is empty"));
7622 	    else if (cap->count1 < 0)
7623 		EMSG(_("E662: At start of changelist"));
7624 	    else
7625 		EMSG(_("E663: At end of changelist"));
7626 	}
7627 	else
7628 	    clearopbeep(cap->oap);
7629 # ifdef FEAT_FOLDING
7630 	if (cap->oap->op_type == OP_NOP
7631 		&& (pos == (pos_T *)-1 || lnum != curwin->w_cursor.lnum)
7632 		&& (fdo_flags & FDO_MARK)
7633 		&& old_KeyTyped)
7634 	    foldOpenCursor();
7635 # endif
7636     }
7637 #else
7638     clearopbeep(cap->oap);
7639 #endif
7640 }
7641 
7642 /*
7643  * Handle '"' command.
7644  */
7645     static void
7646 nv_regname(cap)
7647     cmdarg_T	*cap;
7648 {
7649     if (checkclearop(cap->oap))
7650 	return;
7651 #ifdef FEAT_EVAL
7652     if (cap->nchar == '=')
7653 	cap->nchar = get_expr_register();
7654 #endif
7655     if (cap->nchar != NUL && valid_yank_reg(cap->nchar, FALSE))
7656     {
7657 	cap->oap->regname = cap->nchar;
7658 	cap->opcount = cap->count0;	/* remember count before '"' */
7659 #ifdef FEAT_EVAL
7660 	set_reg_var(cap->oap->regname);
7661 #endif
7662     }
7663     else
7664 	clearopbeep(cap->oap);
7665 }
7666 
7667 /*
7668  * Handle "v", "V" and "CTRL-V" commands.
7669  * Also for "gh", "gH" and "g^H" commands: Always start Select mode, cap->arg
7670  * is TRUE.
7671  * Handle CTRL-Q just like CTRL-V.
7672  */
7673     static void
7674 nv_visual(cap)
7675     cmdarg_T	*cap;
7676 {
7677     if (cap->cmdchar == Ctrl_Q)
7678 	cap->cmdchar = Ctrl_V;
7679 
7680     /* 'v', 'V' and CTRL-V can be used while an operator is pending to make it
7681      * characterwise, linewise, or blockwise. */
7682     if (cap->oap->op_type != OP_NOP)
7683     {
7684 	cap->oap->motion_force = cap->cmdchar;
7685 	finish_op = FALSE;	/* operator doesn't finish now but later */
7686 	return;
7687     }
7688 
7689     VIsual_select = cap->arg;
7690     if (VIsual_active)	    /* change Visual mode */
7691     {
7692 	if (VIsual_mode == cap->cmdchar)    /* stop visual mode */
7693 	    end_visual_mode();
7694 	else				    /* toggle char/block mode */
7695 	{				    /*	   or char/line mode */
7696 	    VIsual_mode = cap->cmdchar;
7697 	    showmode();
7698 	}
7699 	redraw_curbuf_later(INVERTED);	    /* update the inversion */
7700     }
7701     else		    /* start Visual mode */
7702     {
7703 	check_visual_highlight();
7704 	if (cap->count0 > 0 && resel_VIsual_mode != NUL)
7705 	{
7706 	    /* use previously selected part */
7707 	    VIsual = curwin->w_cursor;
7708 
7709 	    VIsual_active = TRUE;
7710 	    VIsual_reselect = TRUE;
7711 	    if (!cap->arg)
7712 		/* start Select mode when 'selectmode' contains "cmd" */
7713 		may_start_select('c');
7714 #ifdef FEAT_MOUSE
7715 	    setmouse();
7716 #endif
7717 	    if (p_smd && msg_silent == 0)
7718 		redraw_cmdline = TRUE;	    /* show visual mode later */
7719 	    /*
7720 	     * For V and ^V, we multiply the number of lines even if there
7721 	     * was only one -- webb
7722 	     */
7723 	    if (resel_VIsual_mode != 'v' || resel_VIsual_line_count > 1)
7724 	    {
7725 		curwin->w_cursor.lnum +=
7726 				    resel_VIsual_line_count * cap->count0 - 1;
7727 		if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
7728 		    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
7729 	    }
7730 	    VIsual_mode = resel_VIsual_mode;
7731 	    if (VIsual_mode == 'v')
7732 	    {
7733 		if (resel_VIsual_line_count <= 1)
7734 		{
7735 		    validate_virtcol();
7736 		    curwin->w_curswant = curwin->w_virtcol
7737 					+ resel_VIsual_vcol * cap->count0 - 1;
7738 		}
7739 		else
7740 		    curwin->w_curswant = resel_VIsual_vcol;
7741 		coladvance(curwin->w_curswant);
7742 	    }
7743 	    if (resel_VIsual_vcol == MAXCOL)
7744 	    {
7745 		curwin->w_curswant = MAXCOL;
7746 		coladvance((colnr_T)MAXCOL);
7747 	    }
7748 	    else if (VIsual_mode == Ctrl_V)
7749 	    {
7750 		validate_virtcol();
7751 		curwin->w_curswant = curwin->w_virtcol
7752 					+ resel_VIsual_vcol * cap->count0 - 1;
7753 		coladvance(curwin->w_curswant);
7754 	    }
7755 	    else
7756 		curwin->w_set_curswant = TRUE;
7757 	    redraw_curbuf_later(INVERTED);	/* show the inversion */
7758 	}
7759 	else
7760 	{
7761 	    if (!cap->arg)
7762 		/* start Select mode when 'selectmode' contains "cmd" */
7763 		may_start_select('c');
7764 	    n_start_visual_mode(cap->cmdchar);
7765 	    if (VIsual_mode != 'V' && *p_sel == 'e')
7766 		++cap->count1;  /* include one more char */
7767 	    if (cap->count0 > 0 && --cap->count1 > 0)
7768 	    {
7769 		/* With a count select that many characters or lines. */
7770 		if (VIsual_mode == 'v' || VIsual_mode == Ctrl_V)
7771 		    nv_right(cap);
7772 		else if (VIsual_mode == 'V')
7773 		    nv_down(cap);
7774 	    }
7775 	}
7776     }
7777 }
7778 
7779 /*
7780  * Start selection for Shift-movement keys.
7781  */
7782     void
7783 start_selection()
7784 {
7785     /* if 'selectmode' contains "key", start Select mode */
7786     may_start_select('k');
7787     n_start_visual_mode('v');
7788 }
7789 
7790 /*
7791  * Start Select mode, if "c" is in 'selectmode' and not in a mapping or menu.
7792  */
7793     void
7794 may_start_select(c)
7795     int		c;
7796 {
7797     VIsual_select = (stuff_empty() && typebuf_typed()
7798 		    && (vim_strchr(p_slm, c) != NULL));
7799 }
7800 
7801 /*
7802  * Start Visual mode "c".
7803  * Should set VIsual_select before calling this.
7804  */
7805     static void
7806 n_start_visual_mode(c)
7807     int		c;
7808 {
7809 #ifdef FEAT_CONCEAL
7810     /* Check for redraw before changing the state. */
7811     conceal_check_cursur_line();
7812 #endif
7813 
7814     VIsual_mode = c;
7815     VIsual_active = TRUE;
7816     VIsual_reselect = TRUE;
7817 #ifdef FEAT_VIRTUALEDIT
7818     /* Corner case: the 0 position in a tab may change when going into
7819      * virtualedit.  Recalculate curwin->w_cursor to avoid bad hilighting.
7820      */
7821     if (c == Ctrl_V && (ve_flags & VE_BLOCK) && gchar_cursor() == TAB)
7822     {
7823 	validate_virtcol();
7824 	coladvance(curwin->w_virtcol);
7825     }
7826 #endif
7827     VIsual = curwin->w_cursor;
7828 
7829 #ifdef FEAT_FOLDING
7830     foldAdjustVisual();
7831 #endif
7832 
7833 #ifdef FEAT_MOUSE
7834     setmouse();
7835 #endif
7836 #ifdef FEAT_CONCEAL
7837     /* Check for redraw after changing the state. */
7838     conceal_check_cursur_line();
7839 #endif
7840 
7841     if (p_smd && msg_silent == 0)
7842 	redraw_cmdline = TRUE;	/* show visual mode later */
7843 #ifdef FEAT_CLIPBOARD
7844     /* Make sure the clipboard gets updated.  Needed because start and
7845      * end may still be the same, and the selection needs to be owned */
7846     clip_star.vmode = NUL;
7847 #endif
7848 
7849     /* Only need to redraw this line, unless still need to redraw an old
7850      * Visual area (when 'lazyredraw' is set). */
7851     if (curwin->w_redr_type < INVERTED)
7852     {
7853 	curwin->w_old_cursor_lnum = curwin->w_cursor.lnum;
7854 	curwin->w_old_visual_lnum = curwin->w_cursor.lnum;
7855     }
7856 }
7857 
7858 
7859 /*
7860  * CTRL-W: Window commands
7861  */
7862     static void
7863 nv_window(cap)
7864     cmdarg_T	*cap;
7865 {
7866 #ifdef FEAT_WINDOWS
7867     if (!checkclearop(cap->oap))
7868 	do_window(cap->nchar, cap->count0, NUL); /* everything is in window.c */
7869 #else
7870     (void)checkclearop(cap->oap);
7871 #endif
7872 }
7873 
7874 /*
7875  * CTRL-Z: Suspend
7876  */
7877     static void
7878 nv_suspend(cap)
7879     cmdarg_T	*cap;
7880 {
7881     clearop(cap->oap);
7882     if (VIsual_active)
7883 	end_visual_mode();		/* stop Visual mode */
7884     do_cmdline_cmd((char_u *)"st");
7885 }
7886 
7887 /*
7888  * Commands starting with "g".
7889  */
7890     static void
7891 nv_g_cmd(cap)
7892     cmdarg_T	*cap;
7893 {
7894     oparg_T	*oap = cap->oap;
7895     pos_T	tpos;
7896     int		i;
7897     int		flag = FALSE;
7898 
7899     switch (cap->nchar)
7900     {
7901     case Ctrl_A:
7902     case Ctrl_X:
7903 #ifdef MEM_PROFILE
7904     /*
7905      * "g^A": dump log of used memory.
7906      */
7907 	if (!VIsual_active && cap->nchar == Ctrl_A)
7908 	    vim_mem_profile_dump();
7909 	else
7910 #endif
7911     /*
7912      * "g^A/g^X": sequentially increment visually selected region
7913      */
7914 	     if (VIsual_active)
7915 	{
7916 	    cap->arg = TRUE;
7917 	    cap->cmdchar = cap->nchar;
7918 	    nv_addsub(cap);
7919 	}
7920 	else
7921 	    clearopbeep(oap);
7922 	break;
7923 
7924 #ifdef FEAT_VREPLACE
7925     /*
7926      * "gR": Enter virtual replace mode.
7927      */
7928     case 'R':
7929 	cap->arg = TRUE;
7930 	nv_Replace(cap);
7931 	break;
7932 
7933     case 'r':
7934 	nv_vreplace(cap);
7935 	break;
7936 #endif
7937 
7938     case '&':
7939 	do_cmdline_cmd((char_u *)"%s//~/&");
7940 	break;
7941 
7942     /*
7943      * "gv": Reselect the previous Visual area.  If Visual already active,
7944      *	     exchange previous and current Visual area.
7945      */
7946     case 'v':
7947 	if (checkclearop(oap))
7948 	    break;
7949 
7950 	if (	   curbuf->b_visual.vi_start.lnum == 0
7951 		|| curbuf->b_visual.vi_start.lnum > curbuf->b_ml.ml_line_count
7952 		|| curbuf->b_visual.vi_end.lnum == 0)
7953 	    beep_flush();
7954 	else
7955 	{
7956 	    /* set w_cursor to the start of the Visual area, tpos to the end */
7957 	    if (VIsual_active)
7958 	    {
7959 		i = VIsual_mode;
7960 		VIsual_mode = curbuf->b_visual.vi_mode;
7961 		curbuf->b_visual.vi_mode = i;
7962 # ifdef FEAT_EVAL
7963 		curbuf->b_visual_mode_eval = i;
7964 # endif
7965 		i = curwin->w_curswant;
7966 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7967 		curbuf->b_visual.vi_curswant = i;
7968 
7969 		tpos = curbuf->b_visual.vi_end;
7970 		curbuf->b_visual.vi_end = curwin->w_cursor;
7971 		curwin->w_cursor = curbuf->b_visual.vi_start;
7972 		curbuf->b_visual.vi_start = VIsual;
7973 	    }
7974 	    else
7975 	    {
7976 		VIsual_mode = curbuf->b_visual.vi_mode;
7977 		curwin->w_curswant = curbuf->b_visual.vi_curswant;
7978 		tpos = curbuf->b_visual.vi_end;
7979 		curwin->w_cursor = curbuf->b_visual.vi_start;
7980 	    }
7981 
7982 	    VIsual_active = TRUE;
7983 	    VIsual_reselect = TRUE;
7984 
7985 	    /* Set Visual to the start and w_cursor to the end of the Visual
7986 	     * area.  Make sure they are on an existing character. */
7987 	    check_cursor();
7988 	    VIsual = curwin->w_cursor;
7989 	    curwin->w_cursor = tpos;
7990 	    check_cursor();
7991 	    update_topline();
7992 	    /*
7993 	     * When called from normal "g" command: start Select mode when
7994 	     * 'selectmode' contains "cmd".  When called for K_SELECT, always
7995 	     * start Select mode.
7996 	     */
7997 	    if (cap->arg)
7998 		VIsual_select = TRUE;
7999 	    else
8000 		may_start_select('c');
8001 #ifdef FEAT_MOUSE
8002 	    setmouse();
8003 #endif
8004 #ifdef FEAT_CLIPBOARD
8005 	    /* Make sure the clipboard gets updated.  Needed because start and
8006 	     * end are still the same, and the selection needs to be owned */
8007 	    clip_star.vmode = NUL;
8008 #endif
8009 	    redraw_curbuf_later(INVERTED);
8010 	    showmode();
8011 	}
8012 	break;
8013     /*
8014      * "gV": Don't reselect the previous Visual area after a Select mode
8015      *	     mapping of menu.
8016      */
8017     case 'V':
8018 	VIsual_reselect = FALSE;
8019 	break;
8020 
8021     /*
8022      * "gh":  start Select mode.
8023      * "gH":  start Select line mode.
8024      * "g^H": start Select block mode.
8025      */
8026     case K_BS:
8027 	cap->nchar = Ctrl_H;
8028 	/* FALLTHROUGH */
8029     case 'h':
8030     case 'H':
8031     case Ctrl_H:
8032 # ifdef EBCDIC
8033 	/* EBCDIC: 'v'-'h' != '^v'-'^h' */
8034 	if (cap->nchar == Ctrl_H)
8035 	    cap->cmdchar = Ctrl_V;
8036 	else
8037 # endif
8038 	cap->cmdchar = cap->nchar + ('v' - 'h');
8039 	cap->arg = TRUE;
8040 	nv_visual(cap);
8041 	break;
8042 
8043     /* "gn", "gN" visually select next/previous search match
8044      * "gn" selects next match
8045      * "gN" selects previous match
8046      */
8047     case 'N':
8048     case 'n':
8049 	if (!current_search(cap->count1, cap->nchar == 'n'))
8050 	    clearopbeep(oap);
8051 	break;
8052 
8053     /*
8054      * "gj" and "gk" two new funny movement keys -- up and down
8055      * movement based on *screen* line rather than *file* line.
8056      */
8057     case 'j':
8058     case K_DOWN:
8059 	/* with 'nowrap' it works just like the normal "j" command; also when
8060 	 * in a closed fold */
8061 	if (!curwin->w_p_wrap
8062 #ifdef FEAT_FOLDING
8063 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
8064 #endif
8065 		)
8066 	{
8067 	    oap->motion_type = MLINE;
8068 	    i = cursor_down(cap->count1, oap->op_type == OP_NOP);
8069 	}
8070 	else
8071 	    i = nv_screengo(oap, FORWARD, cap->count1);
8072 	if (i == FAIL)
8073 	    clearopbeep(oap);
8074 	break;
8075 
8076     case 'k':
8077     case K_UP:
8078 	/* with 'nowrap' it works just like the normal "k" command; also when
8079 	 * in a closed fold */
8080 	if (!curwin->w_p_wrap
8081 #ifdef FEAT_FOLDING
8082 		|| hasFolding(curwin->w_cursor.lnum, NULL, NULL)
8083 #endif
8084 	   )
8085 	{
8086 	    oap->motion_type = MLINE;
8087 	    i = cursor_up(cap->count1, oap->op_type == OP_NOP);
8088 	}
8089 	else
8090 	    i = nv_screengo(oap, BACKWARD, cap->count1);
8091 	if (i == FAIL)
8092 	    clearopbeep(oap);
8093 	break;
8094 
8095     /*
8096      * "gJ": join two lines without inserting a space.
8097      */
8098     case 'J':
8099 	nv_join(cap);
8100 	break;
8101 
8102     /*
8103      * "g0", "g^" and "g$": Like "0", "^" and "$" but for screen lines.
8104      * "gm": middle of "g0" and "g$".
8105      */
8106     case '^':
8107 	flag = TRUE;
8108 	/* FALLTHROUGH */
8109 
8110     case '0':
8111     case 'm':
8112     case K_HOME:
8113     case K_KHOME:
8114 	oap->motion_type = MCHAR;
8115 	oap->inclusive = FALSE;
8116 	if (curwin->w_p_wrap
8117 #ifdef FEAT_VERTSPLIT
8118 		&& curwin->w_width != 0
8119 #endif
8120 		)
8121 	{
8122 	    int		width1 = W_WIDTH(curwin) - curwin_col_off();
8123 	    int		width2 = width1 + curwin_col_off2();
8124 
8125 	    validate_virtcol();
8126 	    i = 0;
8127 	    if (curwin->w_virtcol >= (colnr_T)width1 && width2 > 0)
8128 		i = (curwin->w_virtcol - width1) / width2 * width2 + width1;
8129 	}
8130 	else
8131 	    i = curwin->w_leftcol;
8132 	/* Go to the middle of the screen line.  When 'number' or
8133 	 * 'relativenumber' is on and lines are wrapping the middle can be more
8134 	 * to the left. */
8135 	if (cap->nchar == 'm')
8136 	    i += (W_WIDTH(curwin) - curwin_col_off()
8137 		    + ((curwin->w_p_wrap && i > 0)
8138 			? curwin_col_off2() : 0)) / 2;
8139 	coladvance((colnr_T)i);
8140 	if (flag)
8141 	{
8142 	    do
8143 		i = gchar_cursor();
8144 	    while (vim_iswhite(i) && oneright() == OK);
8145 	}
8146 	curwin->w_set_curswant = TRUE;
8147 	break;
8148 
8149     case '_':
8150 	/* "g_": to the last non-blank character in the line or <count> lines
8151 	 * downward. */
8152 	cap->oap->motion_type = MCHAR;
8153 	cap->oap->inclusive = TRUE;
8154 	curwin->w_curswant = MAXCOL;
8155 	if (cursor_down((long)(cap->count1 - 1),
8156 					 cap->oap->op_type == OP_NOP) == FAIL)
8157 	    clearopbeep(cap->oap);
8158 	else
8159 	{
8160 	    char_u  *ptr = ml_get_curline();
8161 
8162 	    /* In Visual mode we may end up after the line. */
8163 	    if (curwin->w_cursor.col > 0 && ptr[curwin->w_cursor.col] == NUL)
8164 		--curwin->w_cursor.col;
8165 
8166 	    /* Decrease the cursor column until it's on a non-blank. */
8167 	    while (curwin->w_cursor.col > 0
8168 				    && vim_iswhite(ptr[curwin->w_cursor.col]))
8169 		--curwin->w_cursor.col;
8170 	    curwin->w_set_curswant = TRUE;
8171 	    adjust_for_sel(cap);
8172 	}
8173 	break;
8174 
8175     case '$':
8176     case K_END:
8177     case K_KEND:
8178 	{
8179 	    int col_off = curwin_col_off();
8180 
8181 	    oap->motion_type = MCHAR;
8182 	    oap->inclusive = TRUE;
8183 	    if (curwin->w_p_wrap
8184 #ifdef FEAT_VERTSPLIT
8185 		    && curwin->w_width != 0
8186 #endif
8187 	       )
8188 	    {
8189 		curwin->w_curswant = MAXCOL;    /* so we stay at the end */
8190 		if (cap->count1 == 1)
8191 		{
8192 		    int		width1 = W_WIDTH(curwin) - col_off;
8193 		    int		width2 = width1 + curwin_col_off2();
8194 
8195 		    validate_virtcol();
8196 		    i = width1 - 1;
8197 		    if (curwin->w_virtcol >= (colnr_T)width1)
8198 			i += ((curwin->w_virtcol - width1) / width2 + 1)
8199 								     * width2;
8200 		    coladvance((colnr_T)i);
8201 
8202 		    /* Make sure we stick in this column. */
8203 		    validate_virtcol();
8204 		    curwin->w_curswant = curwin->w_virtcol;
8205 		    curwin->w_set_curswant = FALSE;
8206 #if defined(FEAT_LINEBREAK) || defined(FEAT_MBYTE)
8207 		    if (curwin->w_cursor.col > 0 && curwin->w_p_wrap)
8208 		    {
8209 			/*
8210 			 * Check for landing on a character that got split at
8211 			 * the end of the line.  We do not want to advance to
8212 			 * the next screen line.
8213 			 */
8214 			if (curwin->w_virtcol > (colnr_T)i)
8215 			    --curwin->w_cursor.col;
8216 		    }
8217 #endif
8218 		}
8219 		else if (nv_screengo(oap, FORWARD, cap->count1 - 1) == FAIL)
8220 		    clearopbeep(oap);
8221 	    }
8222 	    else
8223 	    {
8224 		i = curwin->w_leftcol + W_WIDTH(curwin) - col_off - 1;
8225 		coladvance((colnr_T)i);
8226 
8227 		/* Make sure we stick in this column. */
8228 		validate_virtcol();
8229 		curwin->w_curswant = curwin->w_virtcol;
8230 		curwin->w_set_curswant = FALSE;
8231 	    }
8232 	}
8233 	break;
8234 
8235     /*
8236      * "g*" and "g#", like "*" and "#" but without using "\<" and "\>"
8237      */
8238     case '*':
8239     case '#':
8240 #if POUND != '#'
8241     case POUND:		/* pound sign (sometimes equal to '#') */
8242 #endif
8243     case Ctrl_RSB:		/* :tag or :tselect for current identifier */
8244     case ']':			/* :tselect for current identifier */
8245 	nv_ident(cap);
8246 	break;
8247 
8248     /*
8249      * ge and gE: go back to end of word
8250      */
8251     case 'e':
8252     case 'E':
8253 	oap->motion_type = MCHAR;
8254 	curwin->w_set_curswant = TRUE;
8255 	oap->inclusive = TRUE;
8256 	if (bckend_word(cap->count1, cap->nchar == 'E', FALSE) == FAIL)
8257 	    clearopbeep(oap);
8258 	break;
8259 
8260     /*
8261      * "g CTRL-G": display info about cursor position
8262      */
8263     case Ctrl_G:
8264 	cursor_pos_info();
8265 	break;
8266 
8267     /*
8268      * "gi": start Insert at the last position.
8269      */
8270     case 'i':
8271 	if (curbuf->b_last_insert.lnum != 0)
8272 	{
8273 	    curwin->w_cursor = curbuf->b_last_insert;
8274 	    check_cursor_lnum();
8275 	    i = (int)STRLEN(ml_get_curline());
8276 	    if (curwin->w_cursor.col > (colnr_T)i)
8277 	    {
8278 #ifdef FEAT_VIRTUALEDIT
8279 		if (virtual_active())
8280 		    curwin->w_cursor.coladd += curwin->w_cursor.col - i;
8281 #endif
8282 		curwin->w_cursor.col = i;
8283 	    }
8284 	}
8285 	cap->cmdchar = 'i';
8286 	nv_edit(cap);
8287 	break;
8288 
8289     /*
8290      * "gI": Start insert in column 1.
8291      */
8292     case 'I':
8293 	beginline(0);
8294 	if (!checkclearopq(oap))
8295 	    invoke_edit(cap, FALSE, 'g', FALSE);
8296 	break;
8297 
8298 #ifdef FEAT_SEARCHPATH
8299     /*
8300      * "gf": goto file, edit file under cursor
8301      * "]f" and "[f": can also be used.
8302      */
8303     case 'f':
8304     case 'F':
8305 	nv_gotofile(cap);
8306 	break;
8307 #endif
8308 
8309 	/* "g'm" and "g`m": jump to mark without setting pcmark */
8310     case '\'':
8311 	cap->arg = TRUE;
8312 	/*FALLTHROUGH*/
8313     case '`':
8314 	nv_gomark(cap);
8315 	break;
8316 
8317     /*
8318      * "gs": Goto sleep.
8319      */
8320     case 's':
8321 	do_sleep(cap->count1 * 1000L);
8322 	break;
8323 
8324     /*
8325      * "ga": Display the ascii value of the character under the
8326      * cursor.	It is displayed in decimal, hex, and octal. -- webb
8327      */
8328     case 'a':
8329 	do_ascii(NULL);
8330 	break;
8331 
8332 #ifdef FEAT_MBYTE
8333     /*
8334      * "g8": Display the bytes used for the UTF-8 character under the
8335      * cursor.	It is displayed in hex.
8336      * "8g8" finds illegal byte sequence.
8337      */
8338     case '8':
8339 	if (cap->count0 == 8)
8340 	    utf_find_illegal();
8341 	else
8342 	    show_utf8();
8343 	break;
8344 #endif
8345 
8346     case '<':
8347 	show_sb_text();
8348 	break;
8349 
8350     /*
8351      * "gg": Goto the first line in file.  With a count it goes to
8352      * that line number like for "G". -- webb
8353      */
8354     case 'g':
8355 	cap->arg = FALSE;
8356 	nv_goto(cap);
8357 	break;
8358 
8359     /*
8360      *	 Two-character operators:
8361      *	 "gq"	    Format text
8362      *	 "gw"	    Format text and keep cursor position
8363      *	 "g~"	    Toggle the case of the text.
8364      *	 "gu"	    Change text to lower case.
8365      *	 "gU"	    Change text to upper case.
8366      *   "g?"	    rot13 encoding
8367      *   "g@"	    call 'operatorfunc'
8368      */
8369     case 'q':
8370     case 'w':
8371 	oap->cursor_start = curwin->w_cursor;
8372 	/*FALLTHROUGH*/
8373     case '~':
8374     case 'u':
8375     case 'U':
8376     case '?':
8377     case '@':
8378 	nv_operator(cap);
8379 	break;
8380 
8381     /*
8382      * "gd": Find first occurrence of pattern under the cursor in the
8383      *	 current function
8384      * "gD": idem, but in the current file.
8385      */
8386     case 'd':
8387     case 'D':
8388 	nv_gd(oap, cap->nchar, (int)cap->count0);
8389 	break;
8390 
8391 #ifdef FEAT_MOUSE
8392     /*
8393      * g<*Mouse> : <C-*mouse>
8394      */
8395     case K_MIDDLEMOUSE:
8396     case K_MIDDLEDRAG:
8397     case K_MIDDLERELEASE:
8398     case K_LEFTMOUSE:
8399     case K_LEFTDRAG:
8400     case K_LEFTRELEASE:
8401     case K_RIGHTMOUSE:
8402     case K_RIGHTDRAG:
8403     case K_RIGHTRELEASE:
8404     case K_X1MOUSE:
8405     case K_X1DRAG:
8406     case K_X1RELEASE:
8407     case K_X2MOUSE:
8408     case K_X2DRAG:
8409     case K_X2RELEASE:
8410 	mod_mask = MOD_MASK_CTRL;
8411 	(void)do_mouse(oap, cap->nchar, BACKWARD, cap->count1, 0);
8412 	break;
8413 #endif
8414 
8415     case K_IGNORE:
8416 	break;
8417 
8418     /*
8419      * "gP" and "gp": same as "P" and "p" but leave cursor just after new text
8420      */
8421     case 'p':
8422     case 'P':
8423 	nv_put(cap);
8424 	break;
8425 
8426 #ifdef FEAT_BYTEOFF
8427     /* "go": goto byte count from start of buffer */
8428     case 'o':
8429 	goto_byte(cap->count0);
8430 	break;
8431 #endif
8432 
8433     /* "gQ": improved Ex mode */
8434     case 'Q':
8435 	if (text_locked())
8436 	{
8437 	    clearopbeep(cap->oap);
8438 	    text_locked_msg();
8439 	    break;
8440 	}
8441 
8442 	if (!checkclearopq(oap))
8443 	    do_exmode(TRUE);
8444 	break;
8445 
8446 #ifdef FEAT_JUMPLIST
8447     case ',':
8448 	nv_pcmark(cap);
8449 	break;
8450 
8451     case ';':
8452 	cap->count1 = -cap->count1;
8453 	nv_pcmark(cap);
8454 	break;
8455 #endif
8456 
8457 #ifdef FEAT_WINDOWS
8458     case 't':
8459 	if (!checkclearop(oap))
8460 	    goto_tabpage((int)cap->count0);
8461 	break;
8462     case 'T':
8463 	if (!checkclearop(oap))
8464 	    goto_tabpage(-(int)cap->count1);
8465 	break;
8466 #endif
8467 
8468     case '+':
8469     case '-': /* "g+" and "g-": undo or redo along the timeline */
8470 	if (!checkclearopq(oap))
8471 	    undo_time(cap->nchar == '-' ? -cap->count1 : cap->count1,
8472 							 FALSE, FALSE, FALSE);
8473 	break;
8474 
8475     default:
8476 	clearopbeep(oap);
8477 	break;
8478     }
8479 }
8480 
8481 /*
8482  * Handle "o" and "O" commands.
8483  */
8484     static void
8485 n_opencmd(cap)
8486     cmdarg_T	*cap;
8487 {
8488 #ifdef FEAT_CONCEAL
8489     linenr_T	oldline = curwin->w_cursor.lnum;
8490 #endif
8491 
8492     if (!checkclearopq(cap->oap))
8493     {
8494 #ifdef FEAT_FOLDING
8495 	if (cap->cmdchar == 'O')
8496 	    /* Open above the first line of a folded sequence of lines */
8497 	    (void)hasFolding(curwin->w_cursor.lnum,
8498 						&curwin->w_cursor.lnum, NULL);
8499 	else
8500 	    /* Open below the last line of a folded sequence of lines */
8501 	    (void)hasFolding(curwin->w_cursor.lnum,
8502 						NULL, &curwin->w_cursor.lnum);
8503 #endif
8504 	if (u_save((linenr_T)(curwin->w_cursor.lnum -
8505 					       (cap->cmdchar == 'O' ? 1 : 0)),
8506 		   (linenr_T)(curwin->w_cursor.lnum +
8507 					       (cap->cmdchar == 'o' ? 1 : 0))
8508 		       ) == OK
8509 		&& open_line(cap->cmdchar == 'O' ? BACKWARD : FORWARD,
8510 #ifdef FEAT_COMMENTS
8511 		    has_format_option(FO_OPEN_COMS) ? OPENLINE_DO_COM :
8512 #endif
8513 		    0, 0))
8514 	{
8515 #ifdef FEAT_CONCEAL
8516 	    if (curwin->w_p_cole > 0 && oldline != curwin->w_cursor.lnum)
8517 		update_single_line(curwin, oldline);
8518 #endif
8519 	    /* When '#' is in 'cpoptions' ignore the count. */
8520 	    if (vim_strchr(p_cpo, CPO_HASH) != NULL)
8521 		cap->count1 = 1;
8522 #ifdef FEAT_SYN_HL
8523 	    if (curwin->w_p_cul)
8524 		/* force redraw of cursorline */
8525 		curwin->w_valid &= ~VALID_CROW;
8526 #endif
8527 	    invoke_edit(cap, FALSE, cap->cmdchar, TRUE);
8528 	}
8529     }
8530 }
8531 
8532 /*
8533  * "." command: redo last change.
8534  */
8535     static void
8536 nv_dot(cap)
8537     cmdarg_T	*cap;
8538 {
8539     if (!checkclearopq(cap->oap))
8540     {
8541 	/*
8542 	 * If "restart_edit" is TRUE, the last but one command is repeated
8543 	 * instead of the last command (inserting text). This is used for
8544 	 * CTRL-O <.> in insert mode.
8545 	 */
8546 	if (start_redo(cap->count0, restart_edit != 0 && !arrow_used) == FAIL)
8547 	    clearopbeep(cap->oap);
8548     }
8549 }
8550 
8551 /*
8552  * CTRL-R: undo undo
8553  */
8554     static void
8555 nv_redo(cap)
8556     cmdarg_T	*cap;
8557 {
8558     if (!checkclearopq(cap->oap))
8559     {
8560 	u_redo((int)cap->count1);
8561 	curwin->w_set_curswant = TRUE;
8562     }
8563 }
8564 
8565 /*
8566  * Handle "U" command.
8567  */
8568     static void
8569 nv_Undo(cap)
8570     cmdarg_T	*cap;
8571 {
8572     /* In Visual mode and typing "gUU" triggers an operator */
8573     if (cap->oap->op_type == OP_UPPER || VIsual_active)
8574     {
8575 	/* translate "gUU" to "gUgU" */
8576 	cap->cmdchar = 'g';
8577 	cap->nchar = 'U';
8578 	nv_operator(cap);
8579     }
8580     else if (!checkclearopq(cap->oap))
8581     {
8582 	u_undoline();
8583 	curwin->w_set_curswant = TRUE;
8584     }
8585 }
8586 
8587 /*
8588  * '~' command: If tilde is not an operator and Visual is off: swap case of a
8589  * single character.
8590  */
8591     static void
8592 nv_tilde(cap)
8593     cmdarg_T	*cap;
8594 {
8595     if (!p_to && !VIsual_active && cap->oap->op_type != OP_TILDE)
8596 	n_swapchar(cap);
8597     else
8598 	nv_operator(cap);
8599 }
8600 
8601 /*
8602  * Handle an operator command.
8603  * The actual work is done by do_pending_operator().
8604  */
8605     static void
8606 nv_operator(cap)
8607     cmdarg_T	*cap;
8608 {
8609     int	    op_type;
8610 
8611     op_type = get_op_type(cap->cmdchar, cap->nchar);
8612 
8613     if (op_type == cap->oap->op_type)	    /* double operator works on lines */
8614 	nv_lineop(cap);
8615     else if (!checkclearop(cap->oap))
8616     {
8617 	cap->oap->start = curwin->w_cursor;
8618 	cap->oap->op_type = op_type;
8619 #ifdef FEAT_EVAL
8620 	set_op_var(op_type);
8621 #endif
8622     }
8623 }
8624 
8625 #ifdef FEAT_EVAL
8626 /*
8627  * Set v:operator to the characters for "optype".
8628  */
8629     static void
8630 set_op_var(optype)
8631     int optype;
8632 {
8633     char_u	opchars[3];
8634 
8635     if (optype == OP_NOP)
8636 	set_vim_var_string(VV_OP, NULL, 0);
8637     else
8638     {
8639 	opchars[0] = get_op_char(optype);
8640 	opchars[1] = get_extra_op_char(optype);
8641 	opchars[2] = NUL;
8642 	set_vim_var_string(VV_OP, opchars, -1);
8643     }
8644 }
8645 #endif
8646 
8647 /*
8648  * Handle linewise operator "dd", "yy", etc.
8649  *
8650  * "_" is is a strange motion command that helps make operators more logical.
8651  * It is actually implemented, but not documented in the real Vi.  This motion
8652  * command actually refers to "the current line".  Commands like "dd" and "yy"
8653  * are really an alternate form of "d_" and "y_".  It does accept a count, so
8654  * "d3_" works to delete 3 lines.
8655  */
8656     static void
8657 nv_lineop(cap)
8658     cmdarg_T	*cap;
8659 {
8660     cap->oap->motion_type = MLINE;
8661     if (cursor_down(cap->count1 - 1L, cap->oap->op_type == OP_NOP) == FAIL)
8662 	clearopbeep(cap->oap);
8663     else if (  (cap->oap->op_type == OP_DELETE /* only with linewise motions */
8664 		&& cap->oap->motion_force != 'v'
8665 		&& cap->oap->motion_force != Ctrl_V)
8666 	    || cap->oap->op_type == OP_LSHIFT
8667 	    || cap->oap->op_type == OP_RSHIFT)
8668 	beginline(BL_SOL | BL_FIX);
8669     else if (cap->oap->op_type != OP_YANK)	/* 'Y' does not move cursor */
8670 	beginline(BL_WHITE | BL_FIX);
8671 }
8672 
8673 /*
8674  * <Home> command.
8675  */
8676     static void
8677 nv_home(cap)
8678     cmdarg_T	*cap;
8679 {
8680     /* CTRL-HOME is like "gg" */
8681     if (mod_mask & MOD_MASK_CTRL)
8682 	nv_goto(cap);
8683     else
8684     {
8685 	cap->count0 = 1;
8686 	nv_pipe(cap);
8687     }
8688     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8689 			       one-character line). */
8690 }
8691 
8692 /*
8693  * "|" command.
8694  */
8695     static void
8696 nv_pipe(cap)
8697     cmdarg_T *cap;
8698 {
8699     cap->oap->motion_type = MCHAR;
8700     cap->oap->inclusive = FALSE;
8701     beginline(0);
8702     if (cap->count0 > 0)
8703     {
8704 	coladvance((colnr_T)(cap->count0 - 1));
8705 	curwin->w_curswant = (colnr_T)(cap->count0 - 1);
8706     }
8707     else
8708 	curwin->w_curswant = 0;
8709     /* keep curswant at the column where we wanted to go, not where
8710      * we ended; differs if line is too short */
8711     curwin->w_set_curswant = FALSE;
8712 }
8713 
8714 /*
8715  * Handle back-word command "b" and "B".
8716  * cap->arg is 1 for "B"
8717  */
8718     static void
8719 nv_bck_word(cap)
8720     cmdarg_T	*cap;
8721 {
8722     cap->oap->motion_type = MCHAR;
8723     cap->oap->inclusive = FALSE;
8724     curwin->w_set_curswant = TRUE;
8725     if (bck_word(cap->count1, cap->arg, FALSE) == FAIL)
8726 	clearopbeep(cap->oap);
8727 #ifdef FEAT_FOLDING
8728     else if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8729 	foldOpenCursor();
8730 #endif
8731 }
8732 
8733 /*
8734  * Handle word motion commands "e", "E", "w" and "W".
8735  * cap->arg is TRUE for "E" and "W".
8736  */
8737     static void
8738 nv_wordcmd(cap)
8739     cmdarg_T	*cap;
8740 {
8741     int		n;
8742     int		word_end;
8743     int		flag = FALSE;
8744     pos_T	startpos = curwin->w_cursor;
8745 
8746     /*
8747      * Set inclusive for the "E" and "e" command.
8748      */
8749     if (cap->cmdchar == 'e' || cap->cmdchar == 'E')
8750 	word_end = TRUE;
8751     else
8752 	word_end = FALSE;
8753     cap->oap->inclusive = word_end;
8754 
8755     /*
8756      * "cw" and "cW" are a special case.
8757      */
8758     if (!word_end && cap->oap->op_type == OP_CHANGE)
8759     {
8760 	n = gchar_cursor();
8761 	if (n != NUL)			/* not an empty line */
8762 	{
8763 	    if (vim_iswhite(n))
8764 	    {
8765 		/*
8766 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
8767 		 * changes one character, not all blanks until the start of
8768 		 * the next word.  Only do this when the 'w' flag is included
8769 		 * in 'cpoptions'.
8770 		 */
8771 		if (cap->count1 == 1 && vim_strchr(p_cpo, CPO_CW) != NULL)
8772 		{
8773 		    cap->oap->inclusive = TRUE;
8774 		    cap->oap->motion_type = MCHAR;
8775 		    return;
8776 		}
8777 	    }
8778 	    else
8779 	    {
8780 		/*
8781 		 * This is a little strange. To match what the real Vi does,
8782 		 * we effectively map 'cw' to 'ce', and 'cW' to 'cE', provided
8783 		 * that we are not on a space or a TAB.  This seems impolite
8784 		 * at first, but it's really more what we mean when we say
8785 		 * 'cw'.
8786 		 * Another strangeness: When standing on the end of a word
8787 		 * "ce" will change until the end of the next word, but "cw"
8788 		 * will change only one character! This is done by setting
8789 		 * flag.
8790 		 */
8791 		cap->oap->inclusive = TRUE;
8792 		word_end = TRUE;
8793 		flag = TRUE;
8794 	    }
8795 	}
8796     }
8797 
8798     cap->oap->motion_type = MCHAR;
8799     curwin->w_set_curswant = TRUE;
8800     if (word_end)
8801 	n = end_word(cap->count1, cap->arg, flag, FALSE);
8802     else
8803 	n = fwd_word(cap->count1, cap->arg, cap->oap->op_type != OP_NOP);
8804 
8805     /* Don't leave the cursor on the NUL past the end of line. Unless we
8806      * didn't move it forward. */
8807     if (lt(startpos, curwin->w_cursor))
8808 	adjust_cursor(cap->oap);
8809 
8810     if (n == FAIL && cap->oap->op_type == OP_NOP)
8811 	clearopbeep(cap->oap);
8812     else
8813     {
8814 	adjust_for_sel(cap);
8815 #ifdef FEAT_FOLDING
8816 	if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8817 	    foldOpenCursor();
8818 #endif
8819     }
8820 }
8821 
8822 /*
8823  * Used after a movement command: If the cursor ends up on the NUL after the
8824  * end of the line, may move it back to the last character and make the motion
8825  * inclusive.
8826  */
8827     static void
8828 adjust_cursor(oap)
8829     oparg_T *oap;
8830 {
8831     /* The cursor cannot remain on the NUL when:
8832      * - the column is > 0
8833      * - not in Visual mode or 'selection' is "o"
8834      * - 'virtualedit' is not "all" and not "onemore".
8835      */
8836     if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL
8837 		&& (!VIsual_active || *p_sel == 'o')
8838 #ifdef FEAT_VIRTUALEDIT
8839 		&& !virtual_active() && (ve_flags & VE_ONEMORE) == 0
8840 #endif
8841 		)
8842     {
8843 	--curwin->w_cursor.col;
8844 #ifdef FEAT_MBYTE
8845 	/* prevent cursor from moving on the trail byte */
8846 	if (has_mbyte)
8847 	    mb_adjust_cursor();
8848 #endif
8849 	oap->inclusive = TRUE;
8850     }
8851 }
8852 
8853 /*
8854  * "0" and "^" commands.
8855  * cap->arg is the argument for beginline().
8856  */
8857     static void
8858 nv_beginline(cap)
8859     cmdarg_T	*cap;
8860 {
8861     cap->oap->motion_type = MCHAR;
8862     cap->oap->inclusive = FALSE;
8863     beginline(cap->arg);
8864 #ifdef FEAT_FOLDING
8865     if ((fdo_flags & FDO_HOR) && KeyTyped && cap->oap->op_type == OP_NOP)
8866 	foldOpenCursor();
8867 #endif
8868     ins_at_eol = FALSE;	    /* Don't move cursor past eol (only necessary in a
8869 			       one-character line). */
8870 }
8871 
8872 /*
8873  * In exclusive Visual mode, may include the last character.
8874  */
8875     static void
8876 adjust_for_sel(cap)
8877     cmdarg_T	*cap;
8878 {
8879     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
8880 	    && gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor))
8881     {
8882 #ifdef FEAT_MBYTE
8883 	if (has_mbyte)
8884 	    inc_cursor();
8885 	else
8886 #endif
8887 	    ++curwin->w_cursor.col;
8888 	cap->oap->inclusive = FALSE;
8889     }
8890 }
8891 
8892 /*
8893  * Exclude last character at end of Visual area for 'selection' == "exclusive".
8894  * Should check VIsual_mode before calling this.
8895  * Returns TRUE when backed up to the previous line.
8896  */
8897     static int
8898 unadjust_for_sel()
8899 {
8900     pos_T	*pp;
8901 
8902     if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor))
8903     {
8904 	if (lt(VIsual, curwin->w_cursor))
8905 	    pp = &curwin->w_cursor;
8906 	else
8907 	    pp = &VIsual;
8908 #ifdef FEAT_VIRTUALEDIT
8909 	if (pp->coladd > 0)
8910 	    --pp->coladd;
8911 	else
8912 #endif
8913 	if (pp->col > 0)
8914 	{
8915 	    --pp->col;
8916 #ifdef FEAT_MBYTE
8917 	    mb_adjustpos(curbuf, pp);
8918 #endif
8919 	}
8920 	else if (pp->lnum > 1)
8921 	{
8922 	    --pp->lnum;
8923 	    pp->col = (colnr_T)STRLEN(ml_get(pp->lnum));
8924 	    return TRUE;
8925 	}
8926     }
8927     return FALSE;
8928 }
8929 
8930 /*
8931  * SELECT key in Normal or Visual mode: end of Select mode mapping.
8932  */
8933     static void
8934 nv_select(cap)
8935     cmdarg_T	*cap;
8936 {
8937     if (VIsual_active)
8938 	VIsual_select = TRUE;
8939     else if (VIsual_reselect)
8940     {
8941 	cap->nchar = 'v';	    /* fake "gv" command */
8942 	cap->arg = TRUE;
8943 	nv_g_cmd(cap);
8944     }
8945 }
8946 
8947 
8948 /*
8949  * "G", "gg", CTRL-END, CTRL-HOME.
8950  * cap->arg is TRUE for "G".
8951  */
8952     static void
8953 nv_goto(cap)
8954     cmdarg_T	*cap;
8955 {
8956     linenr_T	lnum;
8957 
8958     if (cap->arg)
8959 	lnum = curbuf->b_ml.ml_line_count;
8960     else
8961 	lnum = 1L;
8962     cap->oap->motion_type = MLINE;
8963     setpcmark();
8964 
8965     /* When a count is given, use it instead of the default lnum */
8966     if (cap->count0 != 0)
8967 	lnum = cap->count0;
8968     if (lnum < 1L)
8969 	lnum = 1L;
8970     else if (lnum > curbuf->b_ml.ml_line_count)
8971 	lnum = curbuf->b_ml.ml_line_count;
8972     curwin->w_cursor.lnum = lnum;
8973     beginline(BL_SOL | BL_FIX);
8974 #ifdef FEAT_FOLDING
8975     if ((fdo_flags & FDO_JUMP) && KeyTyped && cap->oap->op_type == OP_NOP)
8976 	foldOpenCursor();
8977 #endif
8978 }
8979 
8980 /*
8981  * CTRL-\ in Normal mode.
8982  */
8983     static void
8984 nv_normal(cap)
8985     cmdarg_T	*cap;
8986 {
8987     if (cap->nchar == Ctrl_N || cap->nchar == Ctrl_G)
8988     {
8989 	clearop(cap->oap);
8990 	if (restart_edit != 0 && mode_displayed)
8991 	    clear_cmdline = TRUE;		/* unshow mode later */
8992 	restart_edit = 0;
8993 #ifdef FEAT_CMDWIN
8994 	if (cmdwin_type != 0)
8995 	    cmdwin_result = Ctrl_C;
8996 #endif
8997 	if (VIsual_active)
8998 	{
8999 	    end_visual_mode();		/* stop Visual */
9000 	    redraw_curbuf_later(INVERTED);
9001 	}
9002 	/* CTRL-\ CTRL-G restarts Insert mode when 'insertmode' is set. */
9003 	if (cap->nchar == Ctrl_G && p_im)
9004 	    restart_edit = 'a';
9005     }
9006     else
9007 	clearopbeep(cap->oap);
9008 }
9009 
9010 /*
9011  * ESC in Normal mode: beep, but don't flush buffers.
9012  * Don't even beep if we are canceling a command.
9013  */
9014     static void
9015 nv_esc(cap)
9016     cmdarg_T	*cap;
9017 {
9018     int		no_reason;
9019 
9020     no_reason = (cap->oap->op_type == OP_NOP
9021 		&& cap->opcount == 0
9022 		&& cap->count0 == 0
9023 		&& cap->oap->regname == 0
9024 		&& !p_im);
9025 
9026     if (cap->arg)		/* TRUE for CTRL-C */
9027     {
9028 	if (restart_edit == 0
9029 #ifdef FEAT_CMDWIN
9030 		&& cmdwin_type == 0
9031 #endif
9032 		&& !VIsual_active
9033 		&& no_reason)
9034 	    MSG(_("Type  :quit<Enter>  to exit Vim"));
9035 
9036 	/* Don't reset "restart_edit" when 'insertmode' is set, it won't be
9037 	 * set again below when halfway a mapping. */
9038 	if (!p_im)
9039 	    restart_edit = 0;
9040 #ifdef FEAT_CMDWIN
9041 	if (cmdwin_type != 0)
9042 	{
9043 	    cmdwin_result = K_IGNORE;
9044 	    got_int = FALSE;	/* don't stop executing autocommands et al. */
9045 	    return;
9046 	}
9047 #endif
9048     }
9049 
9050     if (VIsual_active)
9051     {
9052 	end_visual_mode();	/* stop Visual */
9053 	check_cursor_col();	/* make sure cursor is not beyond EOL */
9054 	curwin->w_set_curswant = TRUE;
9055 	redraw_curbuf_later(INVERTED);
9056     }
9057     else if (no_reason)
9058 	vim_beep(BO_ESC);
9059     clearop(cap->oap);
9060 
9061     /* A CTRL-C is often used at the start of a menu.  When 'insertmode' is
9062      * set return to Insert mode afterwards. */
9063     if (restart_edit == 0 && goto_im()
9064 #ifdef FEAT_EX_EXTRA
9065 	    && ex_normal_busy == 0
9066 #endif
9067 	    )
9068 	restart_edit = 'a';
9069 }
9070 
9071 /*
9072  * Handle "A", "a", "I", "i" and <Insert> commands.
9073  */
9074     static void
9075 nv_edit(cap)
9076     cmdarg_T *cap;
9077 {
9078     /* <Insert> is equal to "i" */
9079     if (cap->cmdchar == K_INS || cap->cmdchar == K_KINS)
9080 	cap->cmdchar = 'i';
9081 
9082     /* in Visual mode "A" and "I" are an operator */
9083     if (VIsual_active && (cap->cmdchar == 'A' || cap->cmdchar == 'I'))
9084 	v_visop(cap);
9085 
9086     /* in Visual mode and after an operator "a" and "i" are for text objects */
9087     else if ((cap->cmdchar == 'a' || cap->cmdchar == 'i')
9088 	    && (cap->oap->op_type != OP_NOP || VIsual_active))
9089     {
9090 #ifdef FEAT_TEXTOBJ
9091 	nv_object(cap);
9092 #else
9093 	clearopbeep(cap->oap);
9094 #endif
9095     }
9096     else if (!curbuf->b_p_ma && !p_im)
9097     {
9098 	/* Only give this error when 'insertmode' is off. */
9099 	EMSG(_(e_modifiable));
9100 	clearop(cap->oap);
9101     }
9102     else if (!checkclearopq(cap->oap))
9103     {
9104 	switch (cap->cmdchar)
9105 	{
9106 	    case 'A':	/* "A"ppend after the line */
9107 		curwin->w_set_curswant = TRUE;
9108 #ifdef FEAT_VIRTUALEDIT
9109 		if (ve_flags == VE_ALL)
9110 		{
9111 		    int save_State = State;
9112 
9113 		    /* Pretend Insert mode here to allow the cursor on the
9114 		     * character past the end of the line */
9115 		    State = INSERT;
9116 		    coladvance((colnr_T)MAXCOL);
9117 		    State = save_State;
9118 		}
9119 		else
9120 #endif
9121 		    curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
9122 		break;
9123 
9124 	    case 'I':	/* "I"nsert before the first non-blank */
9125 		if (vim_strchr(p_cpo, CPO_INSEND) == NULL)
9126 		    beginline(BL_WHITE);
9127 		else
9128 		    beginline(BL_WHITE|BL_FIX);
9129 		break;
9130 
9131 	    case 'a':	/* "a"ppend is like "i"nsert on the next character. */
9132 #ifdef FEAT_VIRTUALEDIT
9133 		/* increment coladd when in virtual space, increment the
9134 		 * column otherwise, also to append after an unprintable char */
9135 		if (virtual_active()
9136 			&& (curwin->w_cursor.coladd > 0
9137 			    || *ml_get_cursor() == NUL
9138 			    || *ml_get_cursor() == TAB))
9139 		    curwin->w_cursor.coladd++;
9140 		else
9141 #endif
9142 		if (*ml_get_cursor() != NUL)
9143 		    inc_cursor();
9144 		break;
9145 	}
9146 
9147 #ifdef FEAT_VIRTUALEDIT
9148 	if (curwin->w_cursor.coladd && cap->cmdchar != 'A')
9149 	{
9150 	    int save_State = State;
9151 
9152 	    /* Pretend Insert mode here to allow the cursor on the
9153 	     * character past the end of the line */
9154 	    State = INSERT;
9155 	    coladvance(getviscol());
9156 	    State = save_State;
9157 	}
9158 #endif
9159 
9160 	invoke_edit(cap, FALSE, cap->cmdchar, FALSE);
9161     }
9162 }
9163 
9164 /*
9165  * Invoke edit() and take care of "restart_edit" and the return value.
9166  */
9167     static void
9168 invoke_edit(cap, repl, cmd, startln)
9169     cmdarg_T	*cap;
9170     int		repl;		/* "r" or "gr" command */
9171     int		cmd;
9172     int		startln;
9173 {
9174     int		restart_edit_save = 0;
9175 
9176     /* Complicated: When the user types "a<C-O>a" we don't want to do Insert
9177      * mode recursively.  But when doing "a<C-O>." or "a<C-O>rx" we do allow
9178      * it. */
9179     if (repl || !stuff_empty())
9180 	restart_edit_save = restart_edit;
9181     else
9182 	restart_edit_save = 0;
9183 
9184     /* Always reset "restart_edit", this is not a restarted edit. */
9185     restart_edit = 0;
9186 
9187     if (edit(cmd, startln, cap->count1))
9188 	cap->retval |= CA_COMMAND_BUSY;
9189 
9190     if (restart_edit == 0)
9191 	restart_edit = restart_edit_save;
9192 }
9193 
9194 #ifdef FEAT_TEXTOBJ
9195 /*
9196  * "a" or "i" while an operator is pending or in Visual mode: object motion.
9197  */
9198     static void
9199 nv_object(cap)
9200     cmdarg_T	*cap;
9201 {
9202     int		flag;
9203     int		include;
9204     char_u	*mps_save;
9205 
9206     if (cap->cmdchar == 'i')
9207 	include = FALSE;    /* "ix" = inner object: exclude white space */
9208     else
9209 	include = TRUE;	    /* "ax" = an object: include white space */
9210 
9211     /* Make sure (), [], {} and <> are in 'matchpairs' */
9212     mps_save = curbuf->b_p_mps;
9213     curbuf->b_p_mps = (char_u *)"(:),{:},[:],<:>";
9214 
9215     switch (cap->nchar)
9216     {
9217 	case 'w': /* "aw" = a word */
9218 		flag = current_word(cap->oap, cap->count1, include, FALSE);
9219 		break;
9220 	case 'W': /* "aW" = a WORD */
9221 		flag = current_word(cap->oap, cap->count1, include, TRUE);
9222 		break;
9223 	case 'b': /* "ab" = a braces block */
9224 	case '(':
9225 	case ')':
9226 		flag = current_block(cap->oap, cap->count1, include, '(', ')');
9227 		break;
9228 	case 'B': /* "aB" = a Brackets block */
9229 	case '{':
9230 	case '}':
9231 		flag = current_block(cap->oap, cap->count1, include, '{', '}');
9232 		break;
9233 	case '[': /* "a[" = a [] block */
9234 	case ']':
9235 		flag = current_block(cap->oap, cap->count1, include, '[', ']');
9236 		break;
9237 	case '<': /* "a<" = a <> block */
9238 	case '>':
9239 		flag = current_block(cap->oap, cap->count1, include, '<', '>');
9240 		break;
9241 	case 't': /* "at" = a tag block (xml and html) */
9242 		/* Do not adjust oap->end in do_pending_operator()
9243 		 * otherwise there are different results for 'dit'
9244 		 * (note leading whitespace in last line):
9245 		 * 1) <b>      2) <b>
9246 		 *    foobar      foobar
9247 		 *    </b>            </b>
9248 		 */
9249 		cap->retval |= CA_NO_ADJ_OP_END;
9250 		flag = current_tagblock(cap->oap, cap->count1, include);
9251 		break;
9252 	case 'p': /* "ap" = a paragraph */
9253 		flag = current_par(cap->oap, cap->count1, include, 'p');
9254 		break;
9255 	case 's': /* "as" = a sentence */
9256 		flag = current_sent(cap->oap, cap->count1, include);
9257 		break;
9258 	case '"': /* "a"" = a double quoted string */
9259 	case '\'': /* "a'" = a single quoted string */
9260 	case '`': /* "a`" = a backtick quoted string */
9261 		flag = current_quote(cap->oap, cap->count1, include,
9262 								  cap->nchar);
9263 		break;
9264 #if 0	/* TODO */
9265 	case 'S': /* "aS" = a section */
9266 	case 'f': /* "af" = a filename */
9267 	case 'u': /* "au" = a URL */
9268 #endif
9269 	default:
9270 		flag = FAIL;
9271 		break;
9272     }
9273 
9274     curbuf->b_p_mps = mps_save;
9275     if (flag == FAIL)
9276 	clearopbeep(cap->oap);
9277     adjust_cursor_col();
9278     curwin->w_set_curswant = TRUE;
9279 }
9280 #endif
9281 
9282 /*
9283  * "q" command: Start/stop recording.
9284  * "q:", "q/", "q?": edit command-line in command-line window.
9285  */
9286     static void
9287 nv_record(cap)
9288     cmdarg_T	*cap;
9289 {
9290     if (cap->oap->op_type == OP_FORMAT)
9291     {
9292 	/* "gqq" is the same as "gqgq": format line */
9293 	cap->cmdchar = 'g';
9294 	cap->nchar = 'q';
9295 	nv_operator(cap);
9296     }
9297     else if (!checkclearop(cap->oap))
9298     {
9299 #ifdef FEAT_CMDWIN
9300 	if (cap->nchar == ':' || cap->nchar == '/' || cap->nchar == '?')
9301 	{
9302 	    stuffcharReadbuff(cap->nchar);
9303 	    stuffcharReadbuff(K_CMDWIN);
9304 	}
9305 	else
9306 #endif
9307 	    /* (stop) recording into a named register, unless executing a
9308 	     * register */
9309 	    if (!Exec_reg && do_record(cap->nchar) == FAIL)
9310 		clearopbeep(cap->oap);
9311     }
9312 }
9313 
9314 /*
9315  * Handle the "@r" command.
9316  */
9317     static void
9318 nv_at(cap)
9319     cmdarg_T	*cap;
9320 {
9321     if (checkclearop(cap->oap))
9322 	return;
9323 #ifdef FEAT_EVAL
9324     if (cap->nchar == '=')
9325     {
9326 	if (get_expr_register() == NUL)
9327 	    return;
9328     }
9329 #endif
9330     while (cap->count1-- && !got_int)
9331     {
9332 	if (do_execreg(cap->nchar, FALSE, FALSE, FALSE) == FAIL)
9333 	{
9334 	    clearopbeep(cap->oap);
9335 	    break;
9336 	}
9337 	line_breakcheck();
9338     }
9339 }
9340 
9341 /*
9342  * Handle the CTRL-U and CTRL-D commands.
9343  */
9344     static void
9345 nv_halfpage(cap)
9346     cmdarg_T	*cap;
9347 {
9348     if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
9349 	    || (cap->cmdchar == Ctrl_D
9350 		&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count))
9351 	clearopbeep(cap->oap);
9352     else if (!checkclearop(cap->oap))
9353 	halfpage(cap->cmdchar == Ctrl_D, cap->count0);
9354 }
9355 
9356 /*
9357  * Handle "J" or "gJ" command.
9358  */
9359     static void
9360 nv_join(cap)
9361     cmdarg_T *cap;
9362 {
9363     if (VIsual_active)	/* join the visual lines */
9364 	nv_operator(cap);
9365     else if (!checkclearop(cap->oap))
9366     {
9367 	if (cap->count0 <= 1)
9368 	    cap->count0 = 2;	    /* default for join is two lines! */
9369 	if (curwin->w_cursor.lnum + cap->count0 - 1 >
9370 						   curbuf->b_ml.ml_line_count)
9371 	    clearopbeep(cap->oap);  /* beyond last line */
9372 	else
9373 	{
9374 	    prep_redo(cap->oap->regname, cap->count0,
9375 			 NUL, cap->cmdchar, NUL, NUL, cap->nchar);
9376 	    (void)do_join(cap->count0, cap->nchar == NUL, TRUE, TRUE, TRUE);
9377 	}
9378     }
9379 }
9380 
9381 /*
9382  * "P", "gP", "p" and "gp" commands.
9383  */
9384     static void
9385 nv_put(cap)
9386     cmdarg_T  *cap;
9387 {
9388     int		regname = 0;
9389     void	*reg1 = NULL, *reg2 = NULL;
9390     int		empty = FALSE;
9391     int		was_visual = FALSE;
9392     int		dir;
9393     int		flags = 0;
9394 
9395     if (cap->oap->op_type != OP_NOP)
9396     {
9397 #ifdef FEAT_DIFF
9398 	/* "dp" is ":diffput" */
9399 	if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'p')
9400 	{
9401 	    clearop(cap->oap);
9402 	    nv_diffgetput(TRUE, cap->opcount);
9403 	}
9404 	else
9405 #endif
9406 	clearopbeep(cap->oap);
9407     }
9408     else
9409     {
9410 	dir = (cap->cmdchar == 'P'
9411 		|| (cap->cmdchar == 'g' && cap->nchar == 'P'))
9412 							 ? BACKWARD : FORWARD;
9413 	prep_redo_cmd(cap);
9414 	if (cap->cmdchar == 'g')
9415 	    flags |= PUT_CURSEND;
9416 
9417 	if (VIsual_active)
9418 	{
9419 	    /* Putting in Visual mode: The put text replaces the selected
9420 	     * text.  First delete the selected text, then put the new text.
9421 	     * Need to save and restore the registers that the delete
9422 	     * overwrites if the old contents is being put.
9423 	     */
9424 	    was_visual = TRUE;
9425 	    regname = cap->oap->regname;
9426 #ifdef FEAT_CLIPBOARD
9427 	    adjust_clip_reg(&regname);
9428 #endif
9429 	   if (regname == 0 || regname == '"'
9430 				     || VIM_ISDIGIT(regname) || regname == '-'
9431 #ifdef FEAT_CLIPBOARD
9432 		    || (clip_unnamed && (regname == '*' || regname == '+'))
9433 #endif
9434 
9435 		    )
9436 	    {
9437 		/* The delete is going to overwrite the register we want to
9438 		 * put, save it first. */
9439 		reg1 = get_register(regname, TRUE);
9440 	    }
9441 
9442 	    /* Now delete the selected text. */
9443 	    cap->cmdchar = 'd';
9444 	    cap->nchar = NUL;
9445 	    cap->oap->regname = NUL;
9446 	    nv_operator(cap);
9447 	    do_pending_operator(cap, 0, FALSE);
9448 	    empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
9449 
9450 	    /* delete PUT_LINE_BACKWARD; */
9451 	    cap->oap->regname = regname;
9452 
9453 	    if (reg1 != NULL)
9454 	    {
9455 		/* Delete probably changed the register we want to put, save
9456 		 * it first. Then put back what was there before the delete. */
9457 		reg2 = get_register(regname, FALSE);
9458 		put_register(regname, reg1);
9459 	    }
9460 
9461 	    /* When deleted a linewise Visual area, put the register as
9462 	     * lines to avoid it joined with the next line.  When deletion was
9463 	     * characterwise, split a line when putting lines. */
9464 	    if (VIsual_mode == 'V')
9465 		flags |= PUT_LINE;
9466 	    else if (VIsual_mode == 'v')
9467 		flags |= PUT_LINE_SPLIT;
9468 	    if (VIsual_mode == Ctrl_V && dir == FORWARD)
9469 		flags |= PUT_LINE_FORWARD;
9470 	    dir = BACKWARD;
9471 	    if ((VIsual_mode != 'V'
9472 			&& curwin->w_cursor.col < curbuf->b_op_start.col)
9473 		    || (VIsual_mode == 'V'
9474 			&& curwin->w_cursor.lnum < curbuf->b_op_start.lnum))
9475 		/* cursor is at the end of the line or end of file, put
9476 		 * forward. */
9477 		dir = FORWARD;
9478 	    /* May have been reset in do_put(). */
9479 	    VIsual_active = TRUE;
9480 	}
9481 	do_put(cap->oap->regname, dir, cap->count1, flags);
9482 
9483 	/* If a register was saved, put it back now. */
9484 	if (reg2 != NULL)
9485 	    put_register(regname, reg2);
9486 
9487 	/* What to reselect with "gv"?  Selecting the just put text seems to
9488 	 * be the most useful, since the original text was removed. */
9489 	if (was_visual)
9490 	{
9491 	    curbuf->b_visual.vi_start = curbuf->b_op_start;
9492 	    curbuf->b_visual.vi_end = curbuf->b_op_end;
9493 	}
9494 
9495 	/* When all lines were selected and deleted do_put() leaves an empty
9496 	 * line that needs to be deleted now. */
9497 	if (empty && *ml_get(curbuf->b_ml.ml_line_count) == NUL)
9498 	{
9499 	    ml_delete(curbuf->b_ml.ml_line_count, TRUE);
9500 
9501 	    /* If the cursor was in that line, move it to the end of the last
9502 	     * line. */
9503 	    if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
9504 	    {
9505 		curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
9506 		coladvance((colnr_T)MAXCOL);
9507 	    }
9508 	}
9509 	auto_format(FALSE, TRUE);
9510     }
9511 }
9512 
9513 /*
9514  * "o" and "O" commands.
9515  */
9516     static void
9517 nv_open(cap)
9518     cmdarg_T	*cap;
9519 {
9520 #ifdef FEAT_DIFF
9521     /* "do" is ":diffget" */
9522     if (cap->oap->op_type == OP_DELETE && cap->cmdchar == 'o')
9523     {
9524 	clearop(cap->oap);
9525 	nv_diffgetput(FALSE, cap->opcount);
9526     }
9527     else
9528 #endif
9529     if (VIsual_active)  /* switch start and end of visual */
9530 	v_swap_corners(cap->cmdchar);
9531     else
9532 	n_opencmd(cap);
9533 }
9534 
9535 #ifdef FEAT_SNIFF
9536     static void
9537 nv_sniff(cap)
9538     cmdarg_T	*cap UNUSED;
9539 {
9540     ProcessSniffRequests();
9541 }
9542 #endif
9543 
9544 #ifdef FEAT_NETBEANS_INTG
9545     static void
9546 nv_nbcmd(cap)
9547     cmdarg_T	*cap;
9548 {
9549     netbeans_keycommand(cap->nchar);
9550 }
9551 #endif
9552 
9553 #ifdef FEAT_DND
9554     static void
9555 nv_drop(cap)
9556     cmdarg_T	*cap UNUSED;
9557 {
9558     do_put('~', BACKWARD, 1L, PUT_CURSEND);
9559 }
9560 #endif
9561 
9562 #ifdef FEAT_AUTOCMD
9563 /*
9564  * Trigger CursorHold event.
9565  * When waiting for a character for 'updatetime' K_CURSORHOLD is put in the
9566  * input buffer.  "did_cursorhold" is set to avoid retriggering.
9567  */
9568     static void
9569 nv_cursorhold(cap)
9570     cmdarg_T	*cap;
9571 {
9572     apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf);
9573     did_cursorhold = TRUE;
9574     cap->retval |= CA_COMMAND_BUSY;	/* don't call edit() now */
9575 }
9576 #endif
9577 
9578 /*
9579  * calculate start/end virtual columns for operating in block mode
9580  */
9581     static void
9582 get_op_vcol(oap, redo_VIsual_vcol, initial)
9583     oparg_T	*oap;
9584     colnr_T	redo_VIsual_vcol;
9585     int		initial;            /* when true: adjust position for 'selectmode' */
9586 {
9587     colnr_T	    start, end;
9588 
9589     if (VIsual_mode != Ctrl_V)
9590 	return;
9591 
9592     oap->block_mode = TRUE;
9593 
9594 #ifdef FEAT_MBYTE
9595     /* prevent from moving onto a trail byte */
9596     if (has_mbyte)
9597 	mb_adjustpos(curwin->w_buffer, &oap->end);
9598 #endif
9599 
9600     getvvcol(curwin, &(oap->start), &oap->start_vcol, NULL, &oap->end_vcol);
9601 
9602     if (!redo_VIsual_busy)
9603     {
9604 	getvvcol(curwin, &(oap->end), &start, NULL, &end);
9605 
9606 	if (start < oap->start_vcol)
9607 	    oap->start_vcol = start;
9608 	if (end > oap->end_vcol)
9609 	{
9610 	    if (initial && *p_sel == 'e' && start >= 1
9611 				    && start - 1 >= oap->end_vcol)
9612 		oap->end_vcol = start - 1;
9613 	    else
9614 		oap->end_vcol = end;
9615 	}
9616     }
9617 
9618     /* if '$' was used, get oap->end_vcol from longest line */
9619     if (curwin->w_curswant == MAXCOL)
9620     {
9621 	curwin->w_cursor.col = MAXCOL;
9622 	oap->end_vcol = 0;
9623 	for (curwin->w_cursor.lnum = oap->start.lnum;
9624 		curwin->w_cursor.lnum <= oap->end.lnum;
9625 					++curwin->w_cursor.lnum)
9626 	{
9627 	    getvvcol(curwin, &curwin->w_cursor, NULL, NULL, &end);
9628 	    if (end > oap->end_vcol)
9629 		oap->end_vcol = end;
9630 	}
9631     }
9632     else if (redo_VIsual_busy)
9633 	oap->end_vcol = oap->start_vcol + redo_VIsual_vcol - 1;
9634     /*
9635     * Correct oap->end.col and oap->start.col to be the
9636     * upper-left and lower-right corner of the block area.
9637     *
9638     * (Actually, this does convert column positions into character
9639     * positions)
9640     */
9641     curwin->w_cursor.lnum = oap->end.lnum;
9642     coladvance(oap->end_vcol);
9643     oap->end = curwin->w_cursor;
9644 
9645     curwin->w_cursor = oap->start;
9646     coladvance(oap->start_vcol);
9647     oap->start = curwin->w_cursor;
9648 }
9649