xref: /vim-8.2.3635/src/option.c (revision cf2d8dee)
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 /*
11  * Code to handle user-settable options. This is all pretty much table-
12  * driven. Checklist for adding a new option:
13  * - Put it in the options array below (copy an existing entry).
14  * - For a global option: Add a variable for it in option.h.
15  * - For a buffer or window local option:
16  *   - Add a PV_XX entry to the enum below.
17  *   - Add a variable to the window or buffer struct in structs.h.
18  *   - For a window option, add some code to copy_winopt().
19  *   - For a buffer option, add some code to buf_copy_options().
20  *   - For a buffer string option, add code to check_buf_options().
21  * - If it's a numeric option, add any necessary bounds checks to do_set().
22  * - If it's a list of flags, add some code in do_set(), search for WW_ALL.
23  * - When adding an option with expansion (P_EXPAND), but with a different
24  *   default for Vi and Vim (no P_VI_DEF), add some code at VIMEXP.
25  * - Add documentation!  One line in doc/help.txt, full description in
26  *   options.txt, and any other related places.
27  * - Add an entry in runtime/optwin.vim.
28  * When making changes:
29  * - Adjust the help for the option in doc/option.txt.
30  * - When an entry has the P_VIM flag, or is lacking the P_VI_DEF flag, add a
31  *   comment at the help for the 'compatible' option.
32  */
33 
34 #define IN_OPTION_C
35 #include "vim.h"
36 
37 /*
38  * The options that are local to a window or buffer have "indir" set to one of
39  * these values.  Special values:
40  * PV_NONE: global option.
41  * PV_WIN is added: window-local option
42  * PV_BUF is added: buffer-local option
43  * PV_BOTH is added: global option which also has a local value.
44  */
45 #define PV_BOTH 0x1000
46 #define PV_WIN  0x2000
47 #define PV_BUF  0x4000
48 #define PV_MASK 0x0fff
49 #define OPT_WIN(x)  (idopt_T)(PV_WIN + (int)(x))
50 #define OPT_BUF(x)  (idopt_T)(PV_BUF + (int)(x))
51 #define OPT_BOTH(x) (idopt_T)(PV_BOTH + (int)(x))
52 
53 /*
54  * Definition of the PV_ values for buffer-local options.
55  * The BV_ values are defined in option.h.
56  */
57 #define PV_AI		OPT_BUF(BV_AI)
58 #define PV_AR		OPT_BOTH(OPT_BUF(BV_AR))
59 #define PV_BKC		OPT_BOTH(OPT_BUF(BV_BKC))
60 #ifdef FEAT_QUICKFIX
61 # define PV_BH		OPT_BUF(BV_BH)
62 # define PV_BT		OPT_BUF(BV_BT)
63 # define PV_EFM		OPT_BOTH(OPT_BUF(BV_EFM))
64 # define PV_GP		OPT_BOTH(OPT_BUF(BV_GP))
65 # define PV_MP		OPT_BOTH(OPT_BUF(BV_MP))
66 #endif
67 #define PV_BIN		OPT_BUF(BV_BIN)
68 #define PV_BL		OPT_BUF(BV_BL)
69 #ifdef FEAT_MBYTE
70 # define PV_BOMB	OPT_BUF(BV_BOMB)
71 #endif
72 #define PV_CI		OPT_BUF(BV_CI)
73 #ifdef FEAT_CINDENT
74 # define PV_CIN		OPT_BUF(BV_CIN)
75 # define PV_CINK	OPT_BUF(BV_CINK)
76 # define PV_CINO	OPT_BUF(BV_CINO)
77 #endif
78 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
79 # define PV_CINW	OPT_BUF(BV_CINW)
80 #endif
81 #define PV_CM		OPT_BOTH(OPT_BUF(BV_CM))
82 #ifdef FEAT_FOLDING
83 # define PV_CMS		OPT_BUF(BV_CMS)
84 #endif
85 #ifdef FEAT_COMMENTS
86 # define PV_COM		OPT_BUF(BV_COM)
87 #endif
88 #ifdef FEAT_INS_EXPAND
89 # define PV_CPT		OPT_BUF(BV_CPT)
90 # define PV_DICT	OPT_BOTH(OPT_BUF(BV_DICT))
91 # define PV_TSR		OPT_BOTH(OPT_BUF(BV_TSR))
92 #endif
93 #ifdef FEAT_COMPL_FUNC
94 # define PV_CFU		OPT_BUF(BV_CFU)
95 #endif
96 #ifdef FEAT_FIND_ID
97 # define PV_DEF		OPT_BOTH(OPT_BUF(BV_DEF))
98 # define PV_INC		OPT_BOTH(OPT_BUF(BV_INC))
99 #endif
100 #define PV_EOL		OPT_BUF(BV_EOL)
101 #define PV_FIXEOL	OPT_BUF(BV_FIXEOL)
102 #define PV_EP		OPT_BOTH(OPT_BUF(BV_EP))
103 #define PV_ET		OPT_BUF(BV_ET)
104 #ifdef FEAT_MBYTE
105 # define PV_FENC	OPT_BUF(BV_FENC)
106 #endif
107 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
108 # define PV_BEXPR	OPT_BOTH(OPT_BUF(BV_BEXPR))
109 #endif
110 #ifdef FEAT_EVAL
111 # define PV_FEX		OPT_BUF(BV_FEX)
112 #endif
113 #define PV_FF		OPT_BUF(BV_FF)
114 #define PV_FLP		OPT_BUF(BV_FLP)
115 #define PV_FO		OPT_BUF(BV_FO)
116 #ifdef FEAT_AUTOCMD
117 # define PV_FT		OPT_BUF(BV_FT)
118 #endif
119 #define PV_IMI		OPT_BUF(BV_IMI)
120 #define PV_IMS		OPT_BUF(BV_IMS)
121 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
122 # define PV_INDE	OPT_BUF(BV_INDE)
123 # define PV_INDK	OPT_BUF(BV_INDK)
124 #endif
125 #if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
126 # define PV_INEX	OPT_BUF(BV_INEX)
127 #endif
128 #define PV_INF		OPT_BUF(BV_INF)
129 #define PV_ISK		OPT_BUF(BV_ISK)
130 #ifdef FEAT_CRYPT
131 # define PV_KEY		OPT_BUF(BV_KEY)
132 #endif
133 #ifdef FEAT_KEYMAP
134 # define PV_KMAP	OPT_BUF(BV_KMAP)
135 #endif
136 #define PV_KP		OPT_BOTH(OPT_BUF(BV_KP))
137 #ifdef FEAT_LISP
138 # define PV_LISP	OPT_BUF(BV_LISP)
139 # define PV_LW		OPT_BOTH(OPT_BUF(BV_LW))
140 #endif
141 #define PV_MA		OPT_BUF(BV_MA)
142 #define PV_ML		OPT_BUF(BV_ML)
143 #define PV_MOD		OPT_BUF(BV_MOD)
144 #define PV_MPS		OPT_BUF(BV_MPS)
145 #define PV_NF		OPT_BUF(BV_NF)
146 #ifdef FEAT_COMPL_FUNC
147 # define PV_OFU		OPT_BUF(BV_OFU)
148 #endif
149 #define PV_PATH		OPT_BOTH(OPT_BUF(BV_PATH))
150 #define PV_PI		OPT_BUF(BV_PI)
151 #ifdef FEAT_TEXTOBJ
152 # define PV_QE		OPT_BUF(BV_QE)
153 #endif
154 #define PV_RO		OPT_BUF(BV_RO)
155 #ifdef FEAT_SMARTINDENT
156 # define PV_SI		OPT_BUF(BV_SI)
157 #endif
158 #define PV_SN		OPT_BUF(BV_SN)
159 #ifdef FEAT_SYN_HL
160 # define PV_SMC		OPT_BUF(BV_SMC)
161 # define PV_SYN		OPT_BUF(BV_SYN)
162 #endif
163 #ifdef FEAT_SPELL
164 # define PV_SPC		OPT_BUF(BV_SPC)
165 # define PV_SPF		OPT_BUF(BV_SPF)
166 # define PV_SPL		OPT_BUF(BV_SPL)
167 #endif
168 #define PV_STS		OPT_BUF(BV_STS)
169 #ifdef FEAT_SEARCHPATH
170 # define PV_SUA		OPT_BUF(BV_SUA)
171 #endif
172 #define PV_SW		OPT_BUF(BV_SW)
173 #define PV_SWF		OPT_BUF(BV_SWF)
174 #define PV_TAGS		OPT_BOTH(OPT_BUF(BV_TAGS))
175 #define PV_TC		OPT_BOTH(OPT_BUF(BV_TC))
176 #define PV_TS		OPT_BUF(BV_TS)
177 #define PV_TW		OPT_BUF(BV_TW)
178 #define PV_TX		OPT_BUF(BV_TX)
179 #ifdef FEAT_PERSISTENT_UNDO
180 # define PV_UDF		OPT_BUF(BV_UDF)
181 #endif
182 #define PV_WM		OPT_BUF(BV_WM)
183 
184 /*
185  * Definition of the PV_ values for window-local options.
186  * The WV_ values are defined in option.h.
187  */
188 #define PV_LIST		OPT_WIN(WV_LIST)
189 #ifdef FEAT_ARABIC
190 # define PV_ARAB	OPT_WIN(WV_ARAB)
191 #endif
192 #ifdef FEAT_LINEBREAK
193 # define PV_BRI		OPT_WIN(WV_BRI)
194 # define PV_BRIOPT	OPT_WIN(WV_BRIOPT)
195 #endif
196 #ifdef FEAT_DIFF
197 # define PV_DIFF	OPT_WIN(WV_DIFF)
198 #endif
199 #ifdef FEAT_FOLDING
200 # define PV_FDC		OPT_WIN(WV_FDC)
201 # define PV_FEN		OPT_WIN(WV_FEN)
202 # define PV_FDI		OPT_WIN(WV_FDI)
203 # define PV_FDL		OPT_WIN(WV_FDL)
204 # define PV_FDM		OPT_WIN(WV_FDM)
205 # define PV_FML		OPT_WIN(WV_FML)
206 # define PV_FDN		OPT_WIN(WV_FDN)
207 # ifdef FEAT_EVAL
208 #  define PV_FDE	OPT_WIN(WV_FDE)
209 #  define PV_FDT	OPT_WIN(WV_FDT)
210 # endif
211 # define PV_FMR		OPT_WIN(WV_FMR)
212 #endif
213 #ifdef FEAT_LINEBREAK
214 # define PV_LBR		OPT_WIN(WV_LBR)
215 #endif
216 #define PV_NU		OPT_WIN(WV_NU)
217 #define PV_RNU		OPT_WIN(WV_RNU)
218 #ifdef FEAT_LINEBREAK
219 # define PV_NUW		OPT_WIN(WV_NUW)
220 #endif
221 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
222 # define PV_PVW		OPT_WIN(WV_PVW)
223 #endif
224 #ifdef FEAT_RIGHTLEFT
225 # define PV_RL		OPT_WIN(WV_RL)
226 # define PV_RLC		OPT_WIN(WV_RLC)
227 #endif
228 #ifdef FEAT_SCROLLBIND
229 # define PV_SCBIND	OPT_WIN(WV_SCBIND)
230 #endif
231 #define PV_SCROLL	OPT_WIN(WV_SCROLL)
232 #ifdef FEAT_SPELL
233 # define PV_SPELL	OPT_WIN(WV_SPELL)
234 #endif
235 #ifdef FEAT_SYN_HL
236 # define PV_CUC		OPT_WIN(WV_CUC)
237 # define PV_CUL		OPT_WIN(WV_CUL)
238 # define PV_CC		OPT_WIN(WV_CC)
239 #endif
240 #ifdef FEAT_STL_OPT
241 # define PV_STL		OPT_BOTH(OPT_WIN(WV_STL))
242 #endif
243 #define PV_UL		OPT_BOTH(OPT_BUF(BV_UL))
244 #ifdef FEAT_WINDOWS
245 # define PV_WFH		OPT_WIN(WV_WFH)
246 # define PV_WFW		OPT_WIN(WV_WFW)
247 #endif
248 #define PV_WRAP		OPT_WIN(WV_WRAP)
249 #ifdef FEAT_CURSORBIND
250 # define PV_CRBIND	OPT_WIN(WV_CRBIND)
251 #endif
252 #ifdef FEAT_CONCEAL
253 # define PV_COCU	OPT_WIN(WV_COCU)
254 # define PV_COLE	OPT_WIN(WV_COLE)
255 #endif
256 
257 /* WV_ and BV_ values get typecasted to this for the "indir" field */
258 typedef enum
259 {
260     PV_NONE = 0,
261     PV_MAXVAL = 0xffff    /* to avoid warnings for value out of range */
262 } idopt_T;
263 
264 /*
265  * Options local to a window have a value local to a buffer and global to all
266  * buffers.  Indicate this by setting "var" to VAR_WIN.
267  */
268 #define VAR_WIN ((char_u *)-1)
269 
270 /*
271  * These are the global values for options which are also local to a buffer.
272  * Only to be used in option.c!
273  */
274 static int	p_ai;
275 static int	p_bin;
276 #ifdef FEAT_MBYTE
277 static int	p_bomb;
278 #endif
279 #if defined(FEAT_QUICKFIX)
280 static char_u	*p_bh;
281 static char_u	*p_bt;
282 #endif
283 static int	p_bl;
284 static int	p_ci;
285 #ifdef FEAT_CINDENT
286 static int	p_cin;
287 static char_u	*p_cink;
288 static char_u	*p_cino;
289 #endif
290 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
291 static char_u	*p_cinw;
292 #endif
293 #ifdef FEAT_COMMENTS
294 static char_u	*p_com;
295 #endif
296 #ifdef FEAT_FOLDING
297 static char_u	*p_cms;
298 #endif
299 #ifdef FEAT_INS_EXPAND
300 static char_u	*p_cpt;
301 #endif
302 #ifdef FEAT_COMPL_FUNC
303 static char_u	*p_cfu;
304 static char_u	*p_ofu;
305 #endif
306 static int	p_eol;
307 static int	p_fixeol;
308 static int	p_et;
309 #ifdef FEAT_MBYTE
310 static char_u	*p_fenc;
311 #endif
312 static char_u	*p_ff;
313 static char_u	*p_fo;
314 static char_u	*p_flp;
315 #ifdef FEAT_AUTOCMD
316 static char_u	*p_ft;
317 #endif
318 static long	p_iminsert;
319 static long	p_imsearch;
320 #if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
321 static char_u	*p_inex;
322 #endif
323 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
324 static char_u	*p_inde;
325 static char_u	*p_indk;
326 #endif
327 #if defined(FEAT_EVAL)
328 static char_u	*p_fex;
329 #endif
330 static int	p_inf;
331 static char_u	*p_isk;
332 #ifdef FEAT_CRYPT
333 static char_u	*p_key;
334 #endif
335 #ifdef FEAT_LISP
336 static int	p_lisp;
337 #endif
338 static int	p_ml;
339 static int	p_ma;
340 static int	p_mod;
341 static char_u	*p_mps;
342 static char_u	*p_nf;
343 static int	p_pi;
344 #ifdef FEAT_TEXTOBJ
345 static char_u	*p_qe;
346 #endif
347 static int	p_ro;
348 #ifdef FEAT_SMARTINDENT
349 static int	p_si;
350 #endif
351 static int	p_sn;
352 static long	p_sts;
353 #if defined(FEAT_SEARCHPATH)
354 static char_u	*p_sua;
355 #endif
356 static long	p_sw;
357 static int	p_swf;
358 #ifdef FEAT_SYN_HL
359 static long	p_smc;
360 static char_u	*p_syn;
361 #endif
362 #ifdef FEAT_SPELL
363 static char_u	*p_spc;
364 static char_u	*p_spf;
365 static char_u	*p_spl;
366 #endif
367 static long	p_ts;
368 static long	p_tw;
369 static int	p_tx;
370 #ifdef FEAT_PERSISTENT_UNDO
371 static int	p_udf;
372 #endif
373 static long	p_wm;
374 #ifdef FEAT_KEYMAP
375 static char_u	*p_keymap;
376 #endif
377 
378 /* Saved values for when 'bin' is set. */
379 static int	p_et_nobin;
380 static int	p_ml_nobin;
381 static long	p_tw_nobin;
382 static long	p_wm_nobin;
383 
384 /* Saved values for when 'paste' is set */
385 static int	p_ai_nopaste;
386 static int	p_et_nopaste;
387 static long	p_sts_nopaste;
388 static long	p_tw_nopaste;
389 static long	p_wm_nopaste;
390 
391 struct vimoption
392 {
393     char	*fullname;	/* full option name */
394     char	*shortname;	/* permissible abbreviation */
395     long_u	flags;		/* see below */
396     char_u	*var;		/* global option: pointer to variable;
397 				 * window-local option: VAR_WIN;
398 				 * buffer-local option: global value */
399     idopt_T	indir;		/* global option: PV_NONE;
400 				 * local option: indirect option index */
401     char_u	*def_val[2];	/* default values for variable (vi and vim) */
402 #ifdef FEAT_EVAL
403     scid_T	scriptID;	/* script in which the option was last set */
404 # define SCRIPTID_INIT , 0
405 #else
406 # define SCRIPTID_INIT
407 #endif
408 };
409 
410 #define VI_DEFAULT  0	    /* def_val[VI_DEFAULT] is Vi default value */
411 #define VIM_DEFAULT 1	    /* def_val[VIM_DEFAULT] is Vim default value */
412 
413 /*
414  * Flags
415  */
416 #define P_BOOL		0x01	/* the option is boolean */
417 #define P_NUM		0x02	/* the option is numeric */
418 #define P_STRING	0x04	/* the option is a string */
419 #define P_ALLOCED	0x08	/* the string option is in allocated memory,
420 				   must use free_string_option() when
421 				   assigning new value. Not set if default is
422 				   the same. */
423 #define P_EXPAND	0x10	/* environment expansion.  NOTE: P_EXPAND can
424 				   never be used for local or hidden options! */
425 #define P_NODEFAULT	0x40	/* don't set to default value */
426 #define P_DEF_ALLOCED	0x80	/* default value is in allocated memory, must
427 				    use vim_free() when assigning new value */
428 #define P_WAS_SET	0x100	/* option has been set/reset */
429 #define P_NO_MKRC	0x200	/* don't include in :mkvimrc output */
430 #define P_VI_DEF	0x400	/* Use Vi default for Vim */
431 #define P_VIM		0x800	/* Vim option, reset when 'cp' set */
432 
433 				/* when option changed, what to display: */
434 #define P_RSTAT		0x1000	/* redraw status lines */
435 #define P_RWIN		0x2000	/* redraw current window */
436 #define P_RBUF		0x4000	/* redraw current buffer */
437 #define P_RALL		0x6000	/* redraw all windows */
438 #define P_RCLR		0x7000	/* clear and redraw all */
439 
440 #define P_COMMA		 0x8000	 /* comma separated list */
441 #define P_ONECOMMA	0x18000L /* P_COMMA and cannot have two consecutive
442 				  * commas */
443 #define P_NODUP		0x20000L /* don't allow duplicate strings */
444 #define P_FLAGLIST	0x40000L /* list of single-char flags */
445 
446 #define P_SECURE	0x80000L /* cannot change in modeline or secure mode */
447 #define P_GETTEXT      0x100000L /* expand default value with _() */
448 #define P_NOGLOB       0x200000L /* do not use local value for global vimrc */
449 #define P_NFNAME       0x400000L /* only normal file name chars allowed */
450 #define P_INSECURE     0x800000L /* option was set from a modeline */
451 #define P_PRI_MKRC    0x1000000L /* priority for :mkvimrc (setting option has
452 				   side effects) */
453 #define P_NO_ML       0x2000000L /* not allowed in modeline */
454 #define P_CURSWANT    0x4000000L /* update curswant required; not needed when
455 				  * there is a redraw flag */
456 
457 #define ISK_LATIN1  (char_u *)"@,48-57,_,192-255"
458 
459 /* 'isprint' for latin1 is also used for MS-Windows cp1252, where 0x80 is used
460  * for the currency sign. */
461 #if defined(MSWIN)
462 # define ISP_LATIN1 (char_u *)"@,~-255"
463 #else
464 # define ISP_LATIN1 (char_u *)"@,161-255"
465 #endif
466 
467 /* Make the string as short as possible when compiling with few features. */
468 #if defined(FEAT_DIFF) || defined(FEAT_FOLDING) || defined(FEAT_SPELL) \
469 	|| defined(FEAT_WINDOWS) || defined(FEAT_CLIPBOARD) \
470 	|| defined(FEAT_INS_EXPAND) || defined(FEAT_SYN_HL) || defined(FEAT_CONCEAL)
471 # define HIGHLIGHT_INIT "8:SpecialKey,@:NonText,d:Directory,e:ErrorMsg,i:IncSearch,l:Search,m:MoreMsg,M:ModeMsg,n:LineNr,N:CursorLineNr,r:Question,s:StatusLine,S:StatusLineNC,c:VertSplit,t:Title,v:Visual,V:VisualNOS,w:WarningMsg,W:WildMenu,f:Folded,F:FoldColumn,A:DiffAdd,C:DiffChange,D:DiffDelete,T:DiffText,>:SignColumn,-:Conceal,B:SpellBad,P:SpellCap,R:SpellRare,L:SpellLocal,+:Pmenu,=:PmenuSel,x:PmenuSbar,X:PmenuThumb,*:TabLine,#:TabLineSel,_:TabLineFill,!:CursorColumn,.:CursorLine,o:ColorColumn"
472 #else
473 # define HIGHLIGHT_INIT "8:SpecialKey,@:NonText,d:Directory,e:ErrorMsg,i:IncSearch,l:Search,m:MoreMsg,M:ModeMsg,n:LineNr,N:CursorLineNr,r:Question,s:StatusLine,S:StatusLineNC,t:Title,v:Visual,w:WarningMsg,W:WildMenu,>:SignColumn,*:TabLine,#:TabLineSel,_:TabLineFill"
474 #endif
475 
476 /*
477  * options[] is initialized here.
478  * The order of the options MUST be alphabetic for ":set all" and findoption().
479  * All option names MUST start with a lowercase letter (for findoption()).
480  * Exception: "t_" options are at the end.
481  * The options with a NULL variable are 'hidden': a set command for them is
482  * ignored and they are not printed.
483  */
484 static struct vimoption options[] =
485 {
486     {"aleph",	    "al",   P_NUM|P_VI_DEF|P_CURSWANT,
487 #ifdef FEAT_RIGHTLEFT
488 			    (char_u *)&p_aleph, PV_NONE,
489 #else
490 			    (char_u *)NULL, PV_NONE,
491 #endif
492 			    {
493 #if (defined(WIN3264)) && !defined(FEAT_GUI_W32)
494 			    (char_u *)128L,
495 #else
496 			    (char_u *)224L,
497 #endif
498 					    (char_u *)0L} SCRIPTID_INIT},
499     {"antialias",   "anti", P_BOOL|P_VI_DEF|P_VIM|P_RCLR,
500 #if defined(FEAT_GUI) && defined(MACOS_X)
501 			    (char_u *)&p_antialias, PV_NONE,
502 			    {(char_u *)FALSE, (char_u *)FALSE}
503 #else
504 			    (char_u *)NULL, PV_NONE,
505 			    {(char_u *)FALSE, (char_u *)FALSE}
506 #endif
507 			    SCRIPTID_INIT},
508     {"arabic",	    "arab", P_BOOL|P_VI_DEF|P_VIM|P_CURSWANT,
509 #ifdef FEAT_ARABIC
510 			    (char_u *)VAR_WIN, PV_ARAB,
511 #else
512 			    (char_u *)NULL, PV_NONE,
513 #endif
514 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
515     {"arabicshape", "arshape", P_BOOL|P_VI_DEF|P_VIM|P_RCLR,
516 #ifdef FEAT_ARABIC
517 			    (char_u *)&p_arshape, PV_NONE,
518 #else
519 			    (char_u *)NULL, PV_NONE,
520 #endif
521 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
522     {"allowrevins", "ari",  P_BOOL|P_VI_DEF|P_VIM,
523 #ifdef FEAT_RIGHTLEFT
524 			    (char_u *)&p_ari, PV_NONE,
525 #else
526 			    (char_u *)NULL, PV_NONE,
527 #endif
528 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
529     {"altkeymap",   "akm",  P_BOOL|P_VI_DEF,
530 #ifdef FEAT_FKMAP
531 			    (char_u *)&p_altkeymap, PV_NONE,
532 #else
533 			    (char_u *)NULL, PV_NONE,
534 #endif
535 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
536     {"ambiwidth",  "ambw",  P_STRING|P_VI_DEF|P_RCLR,
537 #if defined(FEAT_MBYTE)
538 			    (char_u *)&p_ambw, PV_NONE,
539 			    {(char_u *)"single", (char_u *)0L}
540 #else
541 			    (char_u *)NULL, PV_NONE,
542 			    {(char_u *)0L, (char_u *)0L}
543 #endif
544 			    SCRIPTID_INIT},
545 #ifdef FEAT_AUTOCHDIR
546     {"autochdir",  "acd",   P_BOOL|P_VI_DEF,
547 			    (char_u *)&p_acd, PV_NONE,
548 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
549 #endif
550     {"autoindent",  "ai",   P_BOOL|P_VI_DEF,
551 			    (char_u *)&p_ai, PV_AI,
552 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
553     {"autoprint",   "ap",   P_BOOL|P_VI_DEF,
554 			    (char_u *)NULL, PV_NONE,
555 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
556     {"autoread",    "ar",   P_BOOL|P_VI_DEF,
557 			    (char_u *)&p_ar, PV_AR,
558 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
559     {"autowrite",   "aw",   P_BOOL|P_VI_DEF,
560 			    (char_u *)&p_aw, PV_NONE,
561 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
562     {"autowriteall","awa",  P_BOOL|P_VI_DEF,
563 			    (char_u *)&p_awa, PV_NONE,
564 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
565     {"background",  "bg",   P_STRING|P_VI_DEF|P_RCLR,
566 			    (char_u *)&p_bg, PV_NONE,
567 			    {
568 #if (defined(WIN3264)) && !defined(FEAT_GUI)
569 			    (char_u *)"dark",
570 #else
571 			    (char_u *)"light",
572 #endif
573 					    (char_u *)0L} SCRIPTID_INIT},
574     {"backspace",   "bs",   P_STRING|P_VI_DEF|P_VIM|P_ONECOMMA|P_NODUP,
575 			    (char_u *)&p_bs, PV_NONE,
576 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
577     {"backup",	    "bk",   P_BOOL|P_VI_DEF|P_VIM,
578 			    (char_u *)&p_bk, PV_NONE,
579 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
580     {"backupcopy",  "bkc",  P_STRING|P_VIM|P_ONECOMMA|P_NODUP,
581 			    (char_u *)&p_bkc, PV_BKC,
582 #ifdef UNIX
583 			    {(char_u *)"yes", (char_u *)"auto"}
584 #else
585 			    {(char_u *)"auto", (char_u *)"auto"}
586 #endif
587 			    SCRIPTID_INIT},
588     {"backupdir",   "bdir", P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA
589 							    |P_NODUP|P_SECURE,
590 			    (char_u *)&p_bdir, PV_NONE,
591 			    {(char_u *)DFLT_BDIR, (char_u *)0L} SCRIPTID_INIT},
592     {"backupext",   "bex",  P_STRING|P_VI_DEF|P_NFNAME,
593 			    (char_u *)&p_bex, PV_NONE,
594 			    {
595 #ifdef VMS
596 			    (char_u *)"_",
597 #else
598 			    (char_u *)"~",
599 #endif
600 					    (char_u *)0L} SCRIPTID_INIT},
601     {"backupskip",  "bsk",  P_STRING|P_VI_DEF|P_ONECOMMA,
602 #ifdef FEAT_WILDIGN
603 			    (char_u *)&p_bsk, PV_NONE,
604 			    {(char_u *)"", (char_u *)0L}
605 #else
606 			    (char_u *)NULL, PV_NONE,
607 			    {(char_u *)0L, (char_u *)0L}
608 #endif
609 			    SCRIPTID_INIT},
610 #ifdef FEAT_BEVAL
611     {"balloondelay","bdlay",P_NUM|P_VI_DEF,
612 			    (char_u *)&p_bdlay, PV_NONE,
613 			    {(char_u *)600L, (char_u *)0L} SCRIPTID_INIT},
614     {"ballooneval", "beval",P_BOOL|P_VI_DEF|P_NO_MKRC,
615 			    (char_u *)&p_beval, PV_NONE,
616 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
617 # ifdef FEAT_EVAL
618     {"balloonexpr", "bexpr", P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
619 			    (char_u *)&p_bexpr, PV_BEXPR,
620 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
621 # endif
622 #endif
623     {"beautify",    "bf",   P_BOOL|P_VI_DEF,
624 			    (char_u *)NULL, PV_NONE,
625 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
626     {"belloff",      "bo",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
627 			    (char_u *)&p_bo, PV_NONE,
628 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
629     {"binary",	    "bin",  P_BOOL|P_VI_DEF|P_RSTAT,
630 			    (char_u *)&p_bin, PV_BIN,
631 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
632     {"bioskey",	    "biosk",P_BOOL|P_VI_DEF,
633 			    (char_u *)NULL, PV_NONE,
634 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
635     {"bomb",	    NULL,   P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
636 #ifdef FEAT_MBYTE
637 			    (char_u *)&p_bomb, PV_BOMB,
638 #else
639 			    (char_u *)NULL, PV_NONE,
640 #endif
641 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
642     {"breakat",	    "brk",  P_STRING|P_VI_DEF|P_RALL|P_FLAGLIST,
643 #ifdef FEAT_LINEBREAK
644 			    (char_u *)&p_breakat, PV_NONE,
645 			    {(char_u *)" \t!@*-+;:,./?", (char_u *)0L}
646 #else
647 			    (char_u *)NULL, PV_NONE,
648 			    {(char_u *)0L, (char_u *)0L}
649 #endif
650 			    SCRIPTID_INIT},
651     {"breakindent",   "bri",  P_BOOL|P_VI_DEF|P_VIM|P_RWIN,
652 #ifdef FEAT_LINEBREAK
653 			    (char_u *)VAR_WIN, PV_BRI,
654 			    {(char_u *)FALSE, (char_u *)0L}
655 #else
656 			    (char_u *)NULL, PV_NONE,
657 			    {(char_u *)0L, (char_u *)0L}
658 #endif
659 			    SCRIPTID_INIT},
660     {"breakindentopt", "briopt", P_STRING|P_ALLOCED|P_VI_DEF|P_RBUF
661 						  |P_ONECOMMA|P_NODUP,
662 #ifdef FEAT_LINEBREAK
663 			    (char_u *)VAR_WIN, PV_BRIOPT,
664 			    {(char_u *)"", (char_u *)NULL}
665 #else
666 			    (char_u *)NULL, PV_NONE,
667 			    {(char_u *)"", (char_u *)NULL}
668 #endif
669 			    SCRIPTID_INIT},
670     {"browsedir",   "bsdir",P_STRING|P_VI_DEF,
671 #ifdef FEAT_BROWSE
672 			    (char_u *)&p_bsdir, PV_NONE,
673 			    {(char_u *)"last", (char_u *)0L}
674 #else
675 			    (char_u *)NULL, PV_NONE,
676 			    {(char_u *)0L, (char_u *)0L}
677 #endif
678 			    SCRIPTID_INIT},
679     {"bufhidden",   "bh",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB,
680 #if defined(FEAT_QUICKFIX)
681 			    (char_u *)&p_bh, PV_BH,
682 			    {(char_u *)"", (char_u *)0L}
683 #else
684 			    (char_u *)NULL, PV_NONE,
685 			    {(char_u *)0L, (char_u *)0L}
686 #endif
687 			    SCRIPTID_INIT},
688     {"buflisted",   "bl",   P_BOOL|P_VI_DEF|P_NOGLOB,
689 			    (char_u *)&p_bl, PV_BL,
690 			    {(char_u *)1L, (char_u *)0L}
691 			    SCRIPTID_INIT},
692     {"buftype",	    "bt",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB,
693 #if defined(FEAT_QUICKFIX)
694 			    (char_u *)&p_bt, PV_BT,
695 			    {(char_u *)"", (char_u *)0L}
696 #else
697 			    (char_u *)NULL, PV_NONE,
698 			    {(char_u *)0L, (char_u *)0L}
699 #endif
700 			    SCRIPTID_INIT},
701     {"casemap",	    "cmp",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
702 #ifdef FEAT_MBYTE
703 			    (char_u *)&p_cmp, PV_NONE,
704 			    {(char_u *)"internal,keepascii", (char_u *)0L}
705 #else
706 			    (char_u *)NULL, PV_NONE,
707 			    {(char_u *)0L, (char_u *)0L}
708 #endif
709 			    SCRIPTID_INIT},
710     {"cdpath",	    "cd",   P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
711 #ifdef FEAT_SEARCHPATH
712 			    (char_u *)&p_cdpath, PV_NONE,
713 			    {(char_u *)",,", (char_u *)0L}
714 #else
715 			    (char_u *)NULL, PV_NONE,
716 			    {(char_u *)0L, (char_u *)0L}
717 #endif
718 			    SCRIPTID_INIT},
719     {"cedit",	    NULL,   P_STRING,
720 #ifdef FEAT_CMDWIN
721 			    (char_u *)&p_cedit, PV_NONE,
722 			    {(char_u *)"", (char_u *)CTRL_F_STR}
723 #else
724 			    (char_u *)NULL, PV_NONE,
725 			    {(char_u *)0L, (char_u *)0L}
726 #endif
727 			    SCRIPTID_INIT},
728     {"charconvert",  "ccv", P_STRING|P_VI_DEF|P_SECURE,
729 #if defined(FEAT_MBYTE) && defined(FEAT_EVAL)
730 			    (char_u *)&p_ccv, PV_NONE,
731 			    {(char_u *)"", (char_u *)0L}
732 #else
733 			    (char_u *)NULL, PV_NONE,
734 			    {(char_u *)0L, (char_u *)0L}
735 #endif
736 			    SCRIPTID_INIT},
737     {"cindent",	    "cin",  P_BOOL|P_VI_DEF|P_VIM,
738 #ifdef FEAT_CINDENT
739 			    (char_u *)&p_cin, PV_CIN,
740 #else
741 			    (char_u *)NULL, PV_NONE,
742 #endif
743 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
744     {"cinkeys",	    "cink", P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
745 #ifdef FEAT_CINDENT
746 			    (char_u *)&p_cink, PV_CINK,
747 			    {(char_u *)"0{,0},0),:,0#,!^F,o,O,e", (char_u *)0L}
748 #else
749 			    (char_u *)NULL, PV_NONE,
750 			    {(char_u *)0L, (char_u *)0L}
751 #endif
752 			    SCRIPTID_INIT},
753     {"cinoptions",  "cino", P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
754 #ifdef FEAT_CINDENT
755 			    (char_u *)&p_cino, PV_CINO,
756 #else
757 			    (char_u *)NULL, PV_NONE,
758 #endif
759 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
760     {"cinwords",    "cinw", P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
761 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
762 			    (char_u *)&p_cinw, PV_CINW,
763 			    {(char_u *)"if,else,while,do,for,switch",
764 				(char_u *)0L}
765 #else
766 			    (char_u *)NULL, PV_NONE,
767 			    {(char_u *)0L, (char_u *)0L}
768 #endif
769 			    SCRIPTID_INIT},
770     {"clipboard",   "cb",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
771 #ifdef FEAT_CLIPBOARD
772 			    (char_u *)&p_cb, PV_NONE,
773 # ifdef FEAT_XCLIPBOARD
774 			    {(char_u *)"autoselect,exclude:cons\\|linux",
775 							       (char_u *)0L}
776 # else
777 			    {(char_u *)"", (char_u *)0L}
778 # endif
779 #else
780 			    (char_u *)NULL, PV_NONE,
781 			    {(char_u *)"", (char_u *)0L}
782 #endif
783 			    SCRIPTID_INIT},
784     {"cmdheight",   "ch",   P_NUM|P_VI_DEF|P_RALL,
785 			    (char_u *)&p_ch, PV_NONE,
786 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
787     {"cmdwinheight", "cwh", P_NUM|P_VI_DEF,
788 #ifdef FEAT_CMDWIN
789 			    (char_u *)&p_cwh, PV_NONE,
790 #else
791 			    (char_u *)NULL, PV_NONE,
792 #endif
793 			    {(char_u *)7L, (char_u *)0L} SCRIPTID_INIT},
794     {"colorcolumn", "cc",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP|P_RWIN,
795 #ifdef FEAT_SYN_HL
796 			    (char_u *)VAR_WIN, PV_CC,
797 #else
798 			    (char_u *)NULL, PV_NONE,
799 #endif
800 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
801     {"columns",	    "co",   P_NUM|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RCLR,
802 			    (char_u *)&Columns, PV_NONE,
803 			    {(char_u *)80L, (char_u *)0L} SCRIPTID_INIT},
804     {"comments",    "com",  P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA
805 							  |P_NODUP|P_CURSWANT,
806 #ifdef FEAT_COMMENTS
807 			    (char_u *)&p_com, PV_COM,
808 			    {(char_u *)"s1:/*,mb:*,ex:*/,://,b:#,:%,:XCOMM,n:>,fb:-",
809 				(char_u *)0L}
810 #else
811 			    (char_u *)NULL, PV_NONE,
812 			    {(char_u *)0L, (char_u *)0L}
813 #endif
814 			    SCRIPTID_INIT},
815     {"commentstring", "cms", P_STRING|P_ALLOCED|P_VI_DEF|P_CURSWANT,
816 #ifdef FEAT_FOLDING
817 			    (char_u *)&p_cms, PV_CMS,
818 			    {(char_u *)"/*%s*/", (char_u *)0L}
819 #else
820 			    (char_u *)NULL, PV_NONE,
821 			    {(char_u *)0L, (char_u *)0L}
822 #endif
823 			    SCRIPTID_INIT},
824 			    /* P_PRI_MKRC isn't needed here, optval_default()
825 			     * always returns TRUE for 'compatible' */
826     {"compatible",  "cp",   P_BOOL|P_RALL,
827 			    (char_u *)&p_cp, PV_NONE,
828 			    {(char_u *)TRUE, (char_u *)FALSE} SCRIPTID_INIT},
829     {"complete",    "cpt",  P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
830 #ifdef FEAT_INS_EXPAND
831 			    (char_u *)&p_cpt, PV_CPT,
832 			    {(char_u *)".,w,b,u,t,i", (char_u *)0L}
833 #else
834 			    (char_u *)NULL, PV_NONE,
835 			    {(char_u *)0L, (char_u *)0L}
836 #endif
837 			    SCRIPTID_INIT},
838     {"concealcursor","cocu", P_STRING|P_ALLOCED|P_RWIN|P_VI_DEF,
839 #ifdef FEAT_CONCEAL
840 			    (char_u *)VAR_WIN, PV_COCU,
841 			    {(char_u *)"", (char_u *)NULL}
842 #else
843 			    (char_u *)NULL, PV_NONE,
844 			    {(char_u *)NULL, (char_u *)0L}
845 #endif
846 			    SCRIPTID_INIT},
847     {"conceallevel","cole", P_NUM|P_RWIN|P_VI_DEF,
848 #ifdef FEAT_CONCEAL
849 			    (char_u *)VAR_WIN, PV_COLE,
850 #else
851 			    (char_u *)NULL, PV_NONE,
852 #endif
853 			    {(char_u *)0L, (char_u *)0L}
854 			    SCRIPTID_INIT},
855     {"completefunc", "cfu", P_STRING|P_ALLOCED|P_VI_DEF|P_SECURE,
856 #ifdef FEAT_COMPL_FUNC
857 			    (char_u *)&p_cfu, PV_CFU,
858 			    {(char_u *)"", (char_u *)0L}
859 #else
860 			    (char_u *)NULL, PV_NONE,
861 			    {(char_u *)0L, (char_u *)0L}
862 #endif
863 			    SCRIPTID_INIT},
864     {"completeopt",   "cot",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
865 #ifdef FEAT_INS_EXPAND
866 			    (char_u *)&p_cot, PV_NONE,
867 			    {(char_u *)"menu,preview", (char_u *)0L}
868 #else
869 			    (char_u *)NULL, PV_NONE,
870 			    {(char_u *)0L, (char_u *)0L}
871 #endif
872 			    SCRIPTID_INIT},
873     {"confirm",     "cf",   P_BOOL|P_VI_DEF,
874 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
875 			    (char_u *)&p_confirm, PV_NONE,
876 #else
877 			    (char_u *)NULL, PV_NONE,
878 #endif
879 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
880     {"conskey",	    "consk",P_BOOL|P_VI_DEF,
881 			    (char_u *)NULL, PV_NONE,
882 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
883     {"copyindent",  "ci",   P_BOOL|P_VI_DEF|P_VIM,
884 			    (char_u *)&p_ci, PV_CI,
885 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
886     {"cpoptions",   "cpo",  P_STRING|P_VIM|P_RALL|P_FLAGLIST,
887 			    (char_u *)&p_cpo, PV_NONE,
888 			    {(char_u *)CPO_VI, (char_u *)CPO_VIM}
889 			    SCRIPTID_INIT},
890     {"cryptmethod", "cm",   P_STRING|P_ALLOCED|P_VI_DEF,
891 #ifdef FEAT_CRYPT
892 			    (char_u *)&p_cm, PV_CM,
893 			    {(char_u *)"zip", (char_u *)0L}
894 #else
895 			    (char_u *)NULL, PV_NONE,
896 			    {(char_u *)0L, (char_u *)0L}
897 #endif
898 			    SCRIPTID_INIT},
899     {"cscopepathcomp", "cspc", P_NUM|P_VI_DEF|P_VIM,
900 #ifdef FEAT_CSCOPE
901 			    (char_u *)&p_cspc, PV_NONE,
902 #else
903 			    (char_u *)NULL, PV_NONE,
904 #endif
905 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
906     {"cscopeprg",   "csprg", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
907 #ifdef FEAT_CSCOPE
908 			    (char_u *)&p_csprg, PV_NONE,
909 			    {(char_u *)"cscope", (char_u *)0L}
910 #else
911 			    (char_u *)NULL, PV_NONE,
912 			    {(char_u *)0L, (char_u *)0L}
913 #endif
914 			    SCRIPTID_INIT},
915     {"cscopequickfix", "csqf", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
916 #if defined(FEAT_CSCOPE) && defined(FEAT_QUICKFIX)
917 			    (char_u *)&p_csqf, PV_NONE,
918 			    {(char_u *)"", (char_u *)0L}
919 #else
920 			    (char_u *)NULL, PV_NONE,
921 			    {(char_u *)0L, (char_u *)0L}
922 #endif
923 			    SCRIPTID_INIT},
924     {"cscoperelative", "csre", P_BOOL|P_VI_DEF|P_VIM,
925 #ifdef FEAT_CSCOPE
926 			    (char_u *)&p_csre, PV_NONE,
927 #else
928 			    (char_u *)NULL, PV_NONE,
929 #endif
930 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
931     {"cscopetag",   "cst",  P_BOOL|P_VI_DEF|P_VIM,
932 #ifdef FEAT_CSCOPE
933 			    (char_u *)&p_cst, PV_NONE,
934 #else
935 			    (char_u *)NULL, PV_NONE,
936 #endif
937 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
938     {"cscopetagorder", "csto", P_NUM|P_VI_DEF|P_VIM,
939 #ifdef FEAT_CSCOPE
940 			    (char_u *)&p_csto, PV_NONE,
941 #else
942 			    (char_u *)NULL, PV_NONE,
943 #endif
944 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
945     {"cscopeverbose", "csverb", P_BOOL|P_VI_DEF|P_VIM,
946 #ifdef FEAT_CSCOPE
947 			    (char_u *)&p_csverbose, PV_NONE,
948 #else
949 			    (char_u *)NULL, PV_NONE,
950 #endif
951 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
952     {"cursorbind",  "crb",  P_BOOL|P_VI_DEF,
953 #ifdef FEAT_CURSORBIND
954 			    (char_u *)VAR_WIN, PV_CRBIND,
955 #else
956 			    (char_u *)NULL, PV_NONE,
957 #endif
958 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
959     {"cursorcolumn", "cuc", P_BOOL|P_VI_DEF|P_RWIN,
960 #ifdef FEAT_SYN_HL
961 			    (char_u *)VAR_WIN, PV_CUC,
962 #else
963 			    (char_u *)NULL, PV_NONE,
964 #endif
965 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
966     {"cursorline",   "cul", P_BOOL|P_VI_DEF|P_RWIN,
967 #ifdef FEAT_SYN_HL
968 			    (char_u *)VAR_WIN, PV_CUL,
969 #else
970 			    (char_u *)NULL, PV_NONE,
971 #endif
972 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
973     {"debug",	    NULL,   P_STRING|P_VI_DEF,
974 			    (char_u *)&p_debug, PV_NONE,
975 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
976     {"define",	    "def",  P_STRING|P_ALLOCED|P_VI_DEF|P_CURSWANT,
977 #ifdef FEAT_FIND_ID
978 			    (char_u *)&p_def, PV_DEF,
979 			    {(char_u *)"^\\s*#\\s*define", (char_u *)0L}
980 #else
981 			    (char_u *)NULL, PV_NONE,
982 			    {(char_u *)NULL, (char_u *)0L}
983 #endif
984 			    SCRIPTID_INIT},
985     {"delcombine", "deco",  P_BOOL|P_VI_DEF|P_VIM,
986 #ifdef FEAT_MBYTE
987 			    (char_u *)&p_deco, PV_NONE,
988 #else
989 			    (char_u *)NULL, PV_NONE,
990 #endif
991 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
992     {"dictionary",  "dict", P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA|P_NODUP,
993 #ifdef FEAT_INS_EXPAND
994 			    (char_u *)&p_dict, PV_DICT,
995 #else
996 			    (char_u *)NULL, PV_NONE,
997 #endif
998 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
999     {"diff",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN|P_NOGLOB,
1000 #ifdef FEAT_DIFF
1001 			    (char_u *)VAR_WIN, PV_DIFF,
1002 #else
1003 			    (char_u *)NULL, PV_NONE,
1004 #endif
1005 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1006     {"diffexpr",    "dex",  P_STRING|P_VI_DEF|P_SECURE|P_CURSWANT,
1007 #if defined(FEAT_DIFF) && defined(FEAT_EVAL)
1008 			    (char_u *)&p_dex, PV_NONE,
1009 			    {(char_u *)"", (char_u *)0L}
1010 #else
1011 			    (char_u *)NULL, PV_NONE,
1012 			    {(char_u *)0L, (char_u *)0L}
1013 #endif
1014 			    SCRIPTID_INIT},
1015     {"diffopt",	    "dip",  P_STRING|P_ALLOCED|P_VI_DEF|P_RWIN|P_ONECOMMA
1016 								     |P_NODUP,
1017 #ifdef FEAT_DIFF
1018 			    (char_u *)&p_dip, PV_NONE,
1019 			    {(char_u *)"filler", (char_u *)NULL}
1020 #else
1021 			    (char_u *)NULL, PV_NONE,
1022 			    {(char_u *)"", (char_u *)NULL}
1023 #endif
1024 			    SCRIPTID_INIT},
1025     {"digraph",	    "dg",   P_BOOL|P_VI_DEF|P_VIM,
1026 #ifdef FEAT_DIGRAPHS
1027 			    (char_u *)&p_dg, PV_NONE,
1028 #else
1029 			    (char_u *)NULL, PV_NONE,
1030 #endif
1031 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1032     {"directory",   "dir",  P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA
1033 							    |P_NODUP|P_SECURE,
1034 			    (char_u *)&p_dir, PV_NONE,
1035 			    {(char_u *)DFLT_DIR, (char_u *)0L} SCRIPTID_INIT},
1036     {"display",	    "dy",   P_STRING|P_VI_DEF|P_ONECOMMA|P_RALL|P_NODUP,
1037 			    (char_u *)&p_dy, PV_NONE,
1038 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1039     {"eadirection", "ead",  P_STRING|P_VI_DEF,
1040 #ifdef FEAT_WINDOWS
1041 			    (char_u *)&p_ead, PV_NONE,
1042 			    {(char_u *)"both", (char_u *)0L}
1043 #else
1044 			    (char_u *)NULL, PV_NONE,
1045 			    {(char_u *)NULL, (char_u *)0L}
1046 #endif
1047 			    SCRIPTID_INIT},
1048     {"edcompatible","ed",   P_BOOL|P_VI_DEF,
1049 			    (char_u *)&p_ed, PV_NONE,
1050 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1051     {"emoji",  "emo",	    P_BOOL|P_VI_DEF|P_RCLR,
1052 #if defined(FEAT_MBYTE)
1053 			    (char_u *)&p_emoji, PV_NONE,
1054 			    {(char_u *)TRUE, (char_u *)0L}
1055 #else
1056 			    (char_u *)NULL, PV_NONE,
1057 			    {(char_u *)0L, (char_u *)0L}
1058 #endif
1059 			    SCRIPTID_INIT},
1060     {"encoding",    "enc",  P_STRING|P_VI_DEF|P_RCLR|P_NO_ML,
1061 #ifdef FEAT_MBYTE
1062 			    (char_u *)&p_enc, PV_NONE,
1063 			    {(char_u *)ENC_DFLT, (char_u *)0L}
1064 #else
1065 			    (char_u *)NULL, PV_NONE,
1066 			    {(char_u *)0L, (char_u *)0L}
1067 #endif
1068 			    SCRIPTID_INIT},
1069     {"endofline",   "eol",  P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
1070 			    (char_u *)&p_eol, PV_EOL,
1071 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1072     {"equalalways", "ea",   P_BOOL|P_VI_DEF|P_RALL,
1073 			    (char_u *)&p_ea, PV_NONE,
1074 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1075     {"equalprg",    "ep",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1076 			    (char_u *)&p_ep, PV_EP,
1077 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1078     {"errorbells",  "eb",   P_BOOL|P_VI_DEF,
1079 			    (char_u *)&p_eb, PV_NONE,
1080 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1081     {"errorfile",   "ef",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1082 #ifdef FEAT_QUICKFIX
1083 			    (char_u *)&p_ef, PV_NONE,
1084 			    {(char_u *)DFLT_ERRORFILE, (char_u *)0L}
1085 #else
1086 			    (char_u *)NULL, PV_NONE,
1087 			    {(char_u *)NULL, (char_u *)0L}
1088 #endif
1089 			    SCRIPTID_INIT},
1090     {"errorformat", "efm",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1091 #ifdef FEAT_QUICKFIX
1092 			    (char_u *)&p_efm, PV_EFM,
1093 			    {(char_u *)DFLT_EFM, (char_u *)0L}
1094 #else
1095 			    (char_u *)NULL, PV_NONE,
1096 			    {(char_u *)NULL, (char_u *)0L}
1097 #endif
1098 			    SCRIPTID_INIT},
1099     {"esckeys",	    "ek",   P_BOOL|P_VIM,
1100 			    (char_u *)&p_ek, PV_NONE,
1101 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
1102     {"eventignore", "ei",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1103 #ifdef FEAT_AUTOCMD
1104 			    (char_u *)&p_ei, PV_NONE,
1105 #else
1106 			    (char_u *)NULL, PV_NONE,
1107 #endif
1108 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1109     {"expandtab",   "et",   P_BOOL|P_VI_DEF|P_VIM,
1110 			    (char_u *)&p_et, PV_ET,
1111 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1112     {"exrc",	    "ex",   P_BOOL|P_VI_DEF|P_SECURE,
1113 			    (char_u *)&p_exrc, PV_NONE,
1114 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1115     {"fileencoding","fenc", P_STRING|P_ALLOCED|P_VI_DEF|P_RSTAT|P_RBUF
1116 								   |P_NO_MKRC,
1117 #ifdef FEAT_MBYTE
1118 			    (char_u *)&p_fenc, PV_FENC,
1119 			    {(char_u *)"", (char_u *)0L}
1120 #else
1121 			    (char_u *)NULL, PV_NONE,
1122 			    {(char_u *)0L, (char_u *)0L}
1123 #endif
1124 			    SCRIPTID_INIT},
1125     {"fileencodings","fencs", P_STRING|P_VI_DEF|P_ONECOMMA,
1126 #ifdef FEAT_MBYTE
1127 			    (char_u *)&p_fencs, PV_NONE,
1128 			    {(char_u *)"ucs-bom", (char_u *)0L}
1129 #else
1130 			    (char_u *)NULL, PV_NONE,
1131 			    {(char_u *)0L, (char_u *)0L}
1132 #endif
1133 			    SCRIPTID_INIT},
1134     {"fileformat",  "ff",   P_STRING|P_ALLOCED|P_VI_DEF|P_RSTAT|P_NO_MKRC
1135 								  |P_CURSWANT,
1136 			    (char_u *)&p_ff, PV_FF,
1137 			    {(char_u *)DFLT_FF, (char_u *)0L} SCRIPTID_INIT},
1138     {"fileformats", "ffs",  P_STRING|P_VIM|P_ONECOMMA|P_NODUP,
1139 			    (char_u *)&p_ffs, PV_NONE,
1140 			    {(char_u *)DFLT_FFS_VI, (char_u *)DFLT_FFS_VIM}
1141 			    SCRIPTID_INIT},
1142     {"fileignorecase", "fic", P_BOOL|P_VI_DEF,
1143 			    (char_u *)&p_fic, PV_NONE,
1144 			    {
1145 #ifdef CASE_INSENSITIVE_FILENAME
1146 				    (char_u *)TRUE,
1147 #else
1148 				    (char_u *)FALSE,
1149 #endif
1150 					(char_u *)0L} SCRIPTID_INIT},
1151     {"filetype",    "ft",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB|P_NFNAME,
1152 #ifdef FEAT_AUTOCMD
1153 			    (char_u *)&p_ft, PV_FT,
1154 			    {(char_u *)"", (char_u *)0L}
1155 #else
1156 			    (char_u *)NULL, PV_NONE,
1157 			    {(char_u *)0L, (char_u *)0L}
1158 #endif
1159 			    SCRIPTID_INIT},
1160     {"fillchars",   "fcs",  P_STRING|P_VI_DEF|P_RALL|P_ONECOMMA|P_NODUP,
1161 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
1162 			    (char_u *)&p_fcs, PV_NONE,
1163 			    {(char_u *)"vert:|,fold:-", (char_u *)0L}
1164 #else
1165 			    (char_u *)NULL, PV_NONE,
1166 			    {(char_u *)"", (char_u *)0L}
1167 #endif
1168 			    SCRIPTID_INIT},
1169     {"fixendofline",  "fixeol", P_BOOL|P_VI_DEF|P_RSTAT,
1170 			    (char_u *)&p_fixeol, PV_FIXEOL,
1171 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1172     {"fkmap",	    "fk",   P_BOOL|P_VI_DEF,
1173 #ifdef FEAT_FKMAP
1174 			    (char_u *)&p_fkmap, PV_NONE,
1175 #else
1176 			    (char_u *)NULL, PV_NONE,
1177 #endif
1178 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1179     {"flash",	    "fl",   P_BOOL|P_VI_DEF,
1180 			    (char_u *)NULL, PV_NONE,
1181 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1182 #ifdef FEAT_FOLDING
1183     {"foldclose",   "fcl",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP|P_RWIN,
1184 			    (char_u *)&p_fcl, PV_NONE,
1185 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1186     {"foldcolumn",  "fdc",  P_NUM|P_VI_DEF|P_RWIN,
1187 			    (char_u *)VAR_WIN, PV_FDC,
1188 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1189     {"foldenable",  "fen",  P_BOOL|P_VI_DEF|P_RWIN,
1190 			    (char_u *)VAR_WIN, PV_FEN,
1191 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1192     {"foldexpr",    "fde",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1193 # ifdef FEAT_EVAL
1194 			    (char_u *)VAR_WIN, PV_FDE,
1195 			    {(char_u *)"0", (char_u *)NULL}
1196 # else
1197 			    (char_u *)NULL, PV_NONE,
1198 			    {(char_u *)NULL, (char_u *)0L}
1199 # endif
1200 			    SCRIPTID_INIT},
1201     {"foldignore",  "fdi",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1202 			    (char_u *)VAR_WIN, PV_FDI,
1203 			    {(char_u *)"#", (char_u *)NULL} SCRIPTID_INIT},
1204     {"foldlevel",   "fdl",  P_NUM|P_VI_DEF|P_RWIN,
1205 			    (char_u *)VAR_WIN, PV_FDL,
1206 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
1207     {"foldlevelstart","fdls", P_NUM|P_VI_DEF|P_CURSWANT,
1208 			    (char_u *)&p_fdls, PV_NONE,
1209 			    {(char_u *)-1L, (char_u *)0L} SCRIPTID_INIT},
1210     {"foldmarker",  "fmr",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|
1211 						    P_RWIN|P_ONECOMMA|P_NODUP,
1212 			    (char_u *)VAR_WIN, PV_FMR,
1213 			    {(char_u *)"{{{,}}}", (char_u *)NULL}
1214 			    SCRIPTID_INIT},
1215     {"foldmethod",  "fdm",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1216 			    (char_u *)VAR_WIN, PV_FDM,
1217 			    {(char_u *)"manual", (char_u *)NULL} SCRIPTID_INIT},
1218     {"foldminlines","fml",  P_NUM|P_VI_DEF|P_RWIN,
1219 			    (char_u *)VAR_WIN, PV_FML,
1220 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
1221     {"foldnestmax", "fdn",  P_NUM|P_VI_DEF|P_RWIN,
1222 			    (char_u *)VAR_WIN, PV_FDN,
1223 			    {(char_u *)20L, (char_u *)0L} SCRIPTID_INIT},
1224     {"foldopen",    "fdo",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP|P_CURSWANT,
1225 			    (char_u *)&p_fdo, PV_NONE,
1226 		 {(char_u *)"block,hor,mark,percent,quickfix,search,tag,undo",
1227 						 (char_u *)0L} SCRIPTID_INIT},
1228     {"foldtext",    "fdt",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1229 # ifdef FEAT_EVAL
1230 			    (char_u *)VAR_WIN, PV_FDT,
1231 			    {(char_u *)"foldtext()", (char_u *)NULL}
1232 # else
1233 			    (char_u *)NULL, PV_NONE,
1234 			    {(char_u *)NULL, (char_u *)0L}
1235 # endif
1236 			    SCRIPTID_INIT},
1237 #endif
1238     {"formatexpr", "fex",   P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
1239 #ifdef FEAT_EVAL
1240 			    (char_u *)&p_fex, PV_FEX,
1241 			    {(char_u *)"", (char_u *)0L}
1242 #else
1243 			    (char_u *)NULL, PV_NONE,
1244 			    {(char_u *)0L, (char_u *)0L}
1245 #endif
1246 			    SCRIPTID_INIT},
1247     {"formatoptions","fo",  P_STRING|P_ALLOCED|P_VIM|P_FLAGLIST,
1248 			    (char_u *)&p_fo, PV_FO,
1249 			    {(char_u *)DFLT_FO_VI, (char_u *)DFLT_FO_VIM}
1250 			    SCRIPTID_INIT},
1251     {"formatlistpat","flp", P_STRING|P_ALLOCED|P_VI_DEF,
1252 			    (char_u *)&p_flp, PV_FLP,
1253 			    {(char_u *)"^\\s*\\d\\+[\\]:.)}\\t ]\\s*",
1254 						 (char_u *)0L} SCRIPTID_INIT},
1255     {"formatprg",   "fp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1256 			    (char_u *)&p_fp, PV_NONE,
1257 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1258     {"fsync",       "fs",   P_BOOL|P_SECURE|P_VI_DEF,
1259 #ifdef HAVE_FSYNC
1260 			    (char_u *)&p_fs, PV_NONE,
1261 			    {(char_u *)TRUE, (char_u *)0L}
1262 #else
1263 			    (char_u *)NULL, PV_NONE,
1264 			    {(char_u *)FALSE, (char_u *)0L}
1265 #endif
1266 			    SCRIPTID_INIT},
1267     {"gdefault",    "gd",   P_BOOL|P_VI_DEF|P_VIM,
1268 			    (char_u *)&p_gd, PV_NONE,
1269 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1270     {"graphic",	    "gr",   P_BOOL|P_VI_DEF,
1271 			    (char_u *)NULL, PV_NONE,
1272 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1273     {"grepformat",  "gfm",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1274 #ifdef FEAT_QUICKFIX
1275 			    (char_u *)&p_gefm, PV_NONE,
1276 			    {(char_u *)DFLT_GREPFORMAT, (char_u *)0L}
1277 #else
1278 			    (char_u *)NULL, PV_NONE,
1279 			    {(char_u *)NULL, (char_u *)0L}
1280 #endif
1281 			    SCRIPTID_INIT},
1282     {"grepprg",	    "gp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1283 #ifdef FEAT_QUICKFIX
1284 			    (char_u *)&p_gp, PV_GP,
1285 			    {
1286 # ifdef WIN3264
1287 			    /* may be changed to "grep -n" in os_win32.c */
1288 			    (char_u *)"findstr /n",
1289 # else
1290 #  ifdef UNIX
1291 			    /* Add an extra file name so that grep will always
1292 			     * insert a file name in the match line. */
1293 			    (char_u *)"grep -n $* /dev/null",
1294 #  else
1295 #   ifdef VMS
1296 			    (char_u *)"SEARCH/NUMBERS ",
1297 #   else
1298 			    (char_u *)"grep -n ",
1299 #   endif
1300 #  endif
1301 # endif
1302 			    (char_u *)0L}
1303 #else
1304 			    (char_u *)NULL, PV_NONE,
1305 			    {(char_u *)NULL, (char_u *)0L}
1306 #endif
1307 			    SCRIPTID_INIT},
1308     {"guicursor",    "gcr",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1309 #ifdef CURSOR_SHAPE
1310 			    (char_u *)&p_guicursor, PV_NONE,
1311 			    {
1312 # ifdef FEAT_GUI
1313 				(char_u *)"n-v-c:block-Cursor/lCursor,ve:ver35-Cursor,o:hor50-Cursor,i-ci:ver25-Cursor/lCursor,r-cr:hor20-Cursor/lCursor,sm:block-Cursor-blinkwait175-blinkoff150-blinkon175",
1314 # else	/* Win32 console */
1315 				(char_u *)"n-v-c:block,o:hor50,i-ci:hor15,r-cr:hor30,sm:block",
1316 # endif
1317 				    (char_u *)0L}
1318 #else
1319 			    (char_u *)NULL, PV_NONE,
1320 			    {(char_u *)NULL, (char_u *)0L}
1321 #endif
1322 			    SCRIPTID_INIT},
1323     {"guifont",	    "gfn",  P_STRING|P_VI_DEF|P_RCLR|P_ONECOMMA|P_NODUP,
1324 #ifdef FEAT_GUI
1325 			    (char_u *)&p_guifont, PV_NONE,
1326 			    {(char_u *)"", (char_u *)0L}
1327 #else
1328 			    (char_u *)NULL, PV_NONE,
1329 			    {(char_u *)NULL, (char_u *)0L}
1330 #endif
1331 			    SCRIPTID_INIT},
1332     {"guifontset",  "gfs",  P_STRING|P_VI_DEF|P_RCLR|P_ONECOMMA,
1333 #if defined(FEAT_GUI) && defined(FEAT_XFONTSET)
1334 			    (char_u *)&p_guifontset, PV_NONE,
1335 			    {(char_u *)"", (char_u *)0L}
1336 #else
1337 			    (char_u *)NULL, PV_NONE,
1338 			    {(char_u *)NULL, (char_u *)0L}
1339 #endif
1340 			    SCRIPTID_INIT},
1341     {"guifontwide", "gfw",  P_STRING|P_VI_DEF|P_RCLR|P_ONECOMMA|P_NODUP,
1342 #if defined(FEAT_GUI) && defined(FEAT_MBYTE)
1343 			    (char_u *)&p_guifontwide, PV_NONE,
1344 			    {(char_u *)"", (char_u *)0L}
1345 #else
1346 			    (char_u *)NULL, PV_NONE,
1347 			    {(char_u *)NULL, (char_u *)0L}
1348 #endif
1349 			    SCRIPTID_INIT},
1350     {"guiheadroom", "ghr",  P_NUM|P_VI_DEF,
1351 #if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_X11)
1352 			    (char_u *)&p_ghr, PV_NONE,
1353 #else
1354 			    (char_u *)NULL, PV_NONE,
1355 #endif
1356 			    {(char_u *)50L, (char_u *)0L} SCRIPTID_INIT},
1357     {"guioptions",  "go",   P_STRING|P_VI_DEF|P_RALL|P_FLAGLIST,
1358 #if defined(FEAT_GUI)
1359 			    (char_u *)&p_go, PV_NONE,
1360 # if defined(UNIX) && !defined(MACOS)
1361 			    {(char_u *)"aegimrLtT", (char_u *)0L}
1362 # else
1363 			    {(char_u *)"egmrLtT", (char_u *)0L}
1364 # endif
1365 #else
1366 			    (char_u *)NULL, PV_NONE,
1367 			    {(char_u *)NULL, (char_u *)0L}
1368 #endif
1369 			    SCRIPTID_INIT},
1370     {"guipty",	    NULL,   P_BOOL|P_VI_DEF,
1371 #if defined(FEAT_GUI)
1372 			    (char_u *)&p_guipty, PV_NONE,
1373 #else
1374 			    (char_u *)NULL, PV_NONE,
1375 #endif
1376 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1377     {"guitablabel",  "gtl", P_STRING|P_VI_DEF|P_RWIN,
1378 #if defined(FEAT_GUI_TABLINE)
1379 			    (char_u *)&p_gtl, PV_NONE,
1380 			    {(char_u *)"", (char_u *)0L}
1381 #else
1382 			    (char_u *)NULL, PV_NONE,
1383 			    {(char_u *)NULL, (char_u *)0L}
1384 #endif
1385 			    SCRIPTID_INIT},
1386     {"guitabtooltip",  "gtt", P_STRING|P_VI_DEF|P_RWIN,
1387 #if defined(FEAT_GUI_TABLINE)
1388 			    (char_u *)&p_gtt, PV_NONE,
1389 			    {(char_u *)"", (char_u *)0L}
1390 #else
1391 			    (char_u *)NULL, PV_NONE,
1392 			    {(char_u *)NULL, (char_u *)0L}
1393 #endif
1394 			    SCRIPTID_INIT},
1395     {"hardtabs",    "ht",   P_NUM|P_VI_DEF,
1396 			    (char_u *)NULL, PV_NONE,
1397 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
1398     {"helpfile",    "hf",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1399 			    (char_u *)&p_hf, PV_NONE,
1400 			    {(char_u *)DFLT_HELPFILE, (char_u *)0L}
1401 			    SCRIPTID_INIT},
1402     {"helpheight",  "hh",   P_NUM|P_VI_DEF,
1403 #ifdef FEAT_WINDOWS
1404 			    (char_u *)&p_hh, PV_NONE,
1405 #else
1406 			    (char_u *)NULL, PV_NONE,
1407 #endif
1408 			    {(char_u *)20L, (char_u *)0L} SCRIPTID_INIT},
1409     {"helplang",    "hlg",  P_STRING|P_VI_DEF|P_ONECOMMA,
1410 #ifdef FEAT_MULTI_LANG
1411 			    (char_u *)&p_hlg, PV_NONE,
1412 			    {(char_u *)"", (char_u *)0L}
1413 #else
1414 			    (char_u *)NULL, PV_NONE,
1415 			    {(char_u *)0L, (char_u *)0L}
1416 #endif
1417 			    SCRIPTID_INIT},
1418     {"hidden",	    "hid",  P_BOOL|P_VI_DEF,
1419 			    (char_u *)&p_hid, PV_NONE,
1420 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1421     {"highlight",   "hl",   P_STRING|P_VI_DEF|P_RCLR|P_ONECOMMA|P_NODUP,
1422 			    (char_u *)&p_hl, PV_NONE,
1423 			    {(char_u *)HIGHLIGHT_INIT, (char_u *)0L}
1424 			    SCRIPTID_INIT},
1425     {"history",	    "hi",   P_NUM|P_VIM,
1426 			    (char_u *)&p_hi, PV_NONE,
1427 			    {(char_u *)0L, (char_u *)50L} SCRIPTID_INIT},
1428     {"hkmap",	    "hk",   P_BOOL|P_VI_DEF|P_VIM,
1429 #ifdef FEAT_RIGHTLEFT
1430 			    (char_u *)&p_hkmap, PV_NONE,
1431 #else
1432 			    (char_u *)NULL, PV_NONE,
1433 #endif
1434 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1435     {"hkmapp",	    "hkp",  P_BOOL|P_VI_DEF|P_VIM,
1436 #ifdef FEAT_RIGHTLEFT
1437 			    (char_u *)&p_hkmapp, PV_NONE,
1438 #else
1439 			    (char_u *)NULL, PV_NONE,
1440 #endif
1441 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1442     {"hlsearch",    "hls",  P_BOOL|P_VI_DEF|P_VIM|P_RALL,
1443 			    (char_u *)&p_hls, PV_NONE,
1444 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1445     {"icon",	    NULL,   P_BOOL|P_VI_DEF,
1446 #ifdef FEAT_TITLE
1447 			    (char_u *)&p_icon, PV_NONE,
1448 #else
1449 			    (char_u *)NULL, PV_NONE,
1450 #endif
1451 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1452     {"iconstring",  NULL,   P_STRING|P_VI_DEF,
1453 #ifdef FEAT_TITLE
1454 			    (char_u *)&p_iconstring, PV_NONE,
1455 #else
1456 			    (char_u *)NULL, PV_NONE,
1457 #endif
1458 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1459     {"ignorecase",  "ic",   P_BOOL|P_VI_DEF,
1460 			    (char_u *)&p_ic, PV_NONE,
1461 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1462     {"imactivatefunc","imaf",P_STRING|P_VI_DEF|P_SECURE,
1463 # if defined(FEAT_EVAL) && defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
1464 			    (char_u *)&p_imaf, PV_NONE,
1465 			    {(char_u *)"", (char_u *)NULL}
1466 # else
1467 			    (char_u *)NULL, PV_NONE,
1468 			    {(char_u *)NULL, (char_u *)0L}
1469 # endif
1470 			    SCRIPTID_INIT},
1471     {"imactivatekey","imak",P_STRING|P_VI_DEF,
1472 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
1473 			    (char_u *)&p_imak, PV_NONE,
1474 #else
1475 			    (char_u *)NULL, PV_NONE,
1476 #endif
1477 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1478     {"imcmdline",   "imc",  P_BOOL|P_VI_DEF,
1479 #ifdef USE_IM_CONTROL
1480 			    (char_u *)&p_imcmdline, PV_NONE,
1481 #else
1482 			    (char_u *)NULL, PV_NONE,
1483 #endif
1484 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1485     {"imdisable",   "imd",  P_BOOL|P_VI_DEF,
1486 #ifdef USE_IM_CONTROL
1487 			    (char_u *)&p_imdisable, PV_NONE,
1488 #else
1489 			    (char_u *)NULL, PV_NONE,
1490 #endif
1491 #ifdef __sgi
1492 			    {(char_u *)TRUE, (char_u *)0L}
1493 #else
1494 			    {(char_u *)FALSE, (char_u *)0L}
1495 #endif
1496 			    SCRIPTID_INIT},
1497     {"iminsert",    "imi",  P_NUM|P_VI_DEF,
1498 			    (char_u *)&p_iminsert, PV_IMI,
1499 #ifdef B_IMODE_IM
1500 			    {(char_u *)B_IMODE_IM, (char_u *)0L}
1501 #else
1502 			    {(char_u *)B_IMODE_NONE, (char_u *)0L}
1503 #endif
1504 			    SCRIPTID_INIT},
1505     {"imsearch",    "ims",  P_NUM|P_VI_DEF,
1506 			    (char_u *)&p_imsearch, PV_IMS,
1507 #ifdef B_IMODE_IM
1508 			    {(char_u *)B_IMODE_IM, (char_u *)0L}
1509 #else
1510 			    {(char_u *)B_IMODE_NONE, (char_u *)0L}
1511 #endif
1512 			    SCRIPTID_INIT},
1513     {"imstatusfunc","imsf",P_STRING|P_VI_DEF|P_SECURE,
1514 # if defined(FEAT_EVAL) && defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
1515 			    (char_u *)&p_imsf, PV_NONE,
1516 			    {(char_u *)"", (char_u *)NULL}
1517 # else
1518 			    (char_u *)NULL, PV_NONE,
1519 			    {(char_u *)NULL, (char_u *)0L}
1520 # endif
1521 			    SCRIPTID_INIT},
1522     {"include",	    "inc",  P_STRING|P_ALLOCED|P_VI_DEF,
1523 #ifdef FEAT_FIND_ID
1524 			    (char_u *)&p_inc, PV_INC,
1525 			    {(char_u *)"^\\s*#\\s*include", (char_u *)0L}
1526 #else
1527 			    (char_u *)NULL, PV_NONE,
1528 			    {(char_u *)0L, (char_u *)0L}
1529 #endif
1530 			    SCRIPTID_INIT},
1531     {"includeexpr", "inex", P_STRING|P_ALLOCED|P_VI_DEF,
1532 #if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
1533 			    (char_u *)&p_inex, PV_INEX,
1534 			    {(char_u *)"", (char_u *)0L}
1535 #else
1536 			    (char_u *)NULL, PV_NONE,
1537 			    {(char_u *)0L, (char_u *)0L}
1538 #endif
1539 			    SCRIPTID_INIT},
1540     {"incsearch",   "is",   P_BOOL|P_VI_DEF|P_VIM,
1541 			    (char_u *)&p_is, PV_NONE,
1542 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1543     {"indentexpr", "inde",  P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
1544 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
1545 			    (char_u *)&p_inde, PV_INDE,
1546 			    {(char_u *)"", (char_u *)0L}
1547 #else
1548 			    (char_u *)NULL, PV_NONE,
1549 			    {(char_u *)0L, (char_u *)0L}
1550 #endif
1551 			    SCRIPTID_INIT},
1552     {"indentkeys", "indk",  P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
1553 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
1554 			    (char_u *)&p_indk, PV_INDK,
1555 			    {(char_u *)"0{,0},:,0#,!^F,o,O,e", (char_u *)0L}
1556 #else
1557 			    (char_u *)NULL, PV_NONE,
1558 			    {(char_u *)0L, (char_u *)0L}
1559 #endif
1560 			    SCRIPTID_INIT},
1561     {"infercase",   "inf",  P_BOOL|P_VI_DEF,
1562 			    (char_u *)&p_inf, PV_INF,
1563 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1564     {"insertmode",  "im",   P_BOOL|P_VI_DEF|P_VIM,
1565 			    (char_u *)&p_im, PV_NONE,
1566 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1567     {"isfname",	    "isf",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1568 			    (char_u *)&p_isf, PV_NONE,
1569 			    {
1570 #ifdef BACKSLASH_IN_FILENAME
1571 				/* Excluded are: & and ^ are special in cmd.exe
1572 				 * ( and ) are used in text separating fnames */
1573 			    (char_u *)"@,48-57,/,\\,.,-,_,+,,,#,$,%,{,},[,],:,@-@,!,~,=",
1574 #else
1575 # ifdef AMIGA
1576 			    (char_u *)"@,48-57,/,.,-,_,+,,,$,:",
1577 # else
1578 #  ifdef VMS
1579 			    (char_u *)"@,48-57,/,.,-,_,+,,,#,$,%,<,>,[,],:,;,~",
1580 #  else /* UNIX et al. */
1581 #   ifdef EBCDIC
1582 			    (char_u *)"@,240-249,/,.,-,_,+,,,#,$,%,~,=",
1583 #   else
1584 			    (char_u *)"@,48-57,/,.,-,_,+,,,#,$,%,~,=",
1585 #   endif
1586 #  endif
1587 # endif
1588 #endif
1589 				(char_u *)0L} SCRIPTID_INIT},
1590     {"isident",	    "isi",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1591 			    (char_u *)&p_isi, PV_NONE,
1592 			    {
1593 #if defined(MSWIN)
1594 			    (char_u *)"@,48-57,_,128-167,224-235",
1595 #else
1596 # ifdef EBCDIC
1597 			    /* TODO: EBCDIC Check this! @ == isalpha()*/
1598 			    (char_u *)"@,240-249,_,66-73,81-89,98-105,"
1599 				    "112-120,128,140-142,156,158,172,"
1600 				    "174,186,191,203-207,219-225,235-239,"
1601 				    "251-254",
1602 # else
1603 			    (char_u *)"@,48-57,_,192-255",
1604 # endif
1605 #endif
1606 				(char_u *)0L} SCRIPTID_INIT},
1607     {"iskeyword",   "isk",  P_STRING|P_ALLOCED|P_VIM|P_COMMA|P_NODUP,
1608 			    (char_u *)&p_isk, PV_ISK,
1609 			    {
1610 #ifdef EBCDIC
1611 			     (char_u *)"@,240-249,_",
1612 			     /* TODO: EBCDIC Check this! @ == isalpha()*/
1613 			     (char_u *)"@,240-249,_,66-73,81-89,98-105,"
1614 				    "112-120,128,140-142,156,158,172,"
1615 				    "174,186,191,203-207,219-225,235-239,"
1616 				    "251-254",
1617 #else
1618 				(char_u *)"@,48-57,_",
1619 # if defined(MSWIN)
1620 				(char_u *)"@,48-57,_,128-167,224-235"
1621 # else
1622 				ISK_LATIN1
1623 # endif
1624 #endif
1625 			    } SCRIPTID_INIT},
1626     {"isprint",	    "isp",  P_STRING|P_VI_DEF|P_RALL|P_COMMA|P_NODUP,
1627 			    (char_u *)&p_isp, PV_NONE,
1628 			    {
1629 #if defined(MSWIN) || (defined(MACOS) && !defined(MACOS_X)) \
1630 		|| defined(VMS)
1631 			    (char_u *)"@,~-255",
1632 #else
1633 # ifdef EBCDIC
1634 			    /* all chars above 63 are printable */
1635 			    (char_u *)"63-255",
1636 # else
1637 			    ISP_LATIN1,
1638 # endif
1639 #endif
1640 				(char_u *)0L} SCRIPTID_INIT},
1641     {"joinspaces",  "js",   P_BOOL|P_VI_DEF|P_VIM,
1642 			    (char_u *)&p_js, PV_NONE,
1643 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1644     {"key",	    NULL,   P_STRING|P_ALLOCED|P_VI_DEF|P_NO_MKRC,
1645 #ifdef FEAT_CRYPT
1646 			    (char_u *)&p_key, PV_KEY,
1647 			    {(char_u *)"", (char_u *)0L}
1648 #else
1649 			    (char_u *)NULL, PV_NONE,
1650 			    {(char_u *)0L, (char_u *)0L}
1651 #endif
1652 			    SCRIPTID_INIT},
1653     {"keymap",	    "kmp",  P_STRING|P_ALLOCED|P_VI_DEF|P_RBUF|P_RSTAT|P_NFNAME|P_PRI_MKRC,
1654 #ifdef FEAT_KEYMAP
1655 			    (char_u *)&p_keymap, PV_KMAP,
1656 			    {(char_u *)"", (char_u *)0L}
1657 #else
1658 			    (char_u *)NULL, PV_NONE,
1659 			    {(char_u *)"", (char_u *)0L}
1660 #endif
1661 			    SCRIPTID_INIT},
1662     {"keymodel",    "km",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1663 			    (char_u *)&p_km, PV_NONE,
1664 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1665     {"keywordprg",  "kp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1666 			    (char_u *)&p_kp, PV_KP,
1667 			    {
1668 #if defined(MSWIN)
1669 			    (char_u *)":help",
1670 #else
1671 # ifdef VMS
1672 			    (char_u *)"help",
1673 # else
1674 #  ifdef USEMAN_S
1675 			    (char_u *)"man -s",
1676 #  else
1677 			    (char_u *)"man",
1678 #  endif
1679 # endif
1680 #endif
1681 				(char_u *)0L} SCRIPTID_INIT},
1682     {"langmap",     "lmap", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP|P_SECURE,
1683 #ifdef FEAT_LANGMAP
1684 			    (char_u *)&p_langmap, PV_NONE,
1685 			    {(char_u *)"",	/* unmatched } */
1686 #else
1687 			    (char_u *)NULL, PV_NONE,
1688 			    {(char_u *)NULL,
1689 #endif
1690 				(char_u *)0L} SCRIPTID_INIT},
1691     {"langmenu",    "lm",   P_STRING|P_VI_DEF|P_NFNAME,
1692 #if defined(FEAT_MENU) && defined(FEAT_MULTI_LANG)
1693 			    (char_u *)&p_lm, PV_NONE,
1694 #else
1695 			    (char_u *)NULL, PV_NONE,
1696 #endif
1697 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1698     {"langnoremap",  "lnr",   P_BOOL|P_VI_DEF,
1699 #ifdef FEAT_LANGMAP
1700 			    (char_u *)&p_lnr, PV_NONE,
1701 #else
1702 			    (char_u *)NULL, PV_NONE,
1703 #endif
1704 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1705     {"laststatus",  "ls",   P_NUM|P_VI_DEF|P_RALL,
1706 #ifdef FEAT_WINDOWS
1707 			    (char_u *)&p_ls, PV_NONE,
1708 #else
1709 			    (char_u *)NULL, PV_NONE,
1710 #endif
1711 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
1712     {"lazyredraw",  "lz",   P_BOOL|P_VI_DEF,
1713 			    (char_u *)&p_lz, PV_NONE,
1714 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1715     {"linebreak",   "lbr",  P_BOOL|P_VI_DEF|P_RWIN,
1716 #ifdef FEAT_LINEBREAK
1717 			    (char_u *)VAR_WIN, PV_LBR,
1718 #else
1719 			    (char_u *)NULL, PV_NONE,
1720 #endif
1721 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1722     {"lines",	    NULL,   P_NUM|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RCLR,
1723 			    (char_u *)&Rows, PV_NONE,
1724 			    {
1725 #if defined(WIN3264)
1726 			    (char_u *)25L,
1727 #else
1728 			    (char_u *)24L,
1729 #endif
1730 					    (char_u *)0L} SCRIPTID_INIT},
1731     {"linespace",   "lsp",  P_NUM|P_VI_DEF|P_RCLR,
1732 #ifdef FEAT_GUI
1733 			    (char_u *)&p_linespace, PV_NONE,
1734 #else
1735 			    (char_u *)NULL, PV_NONE,
1736 #endif
1737 #ifdef FEAT_GUI_W32
1738 			    {(char_u *)1L, (char_u *)0L}
1739 #else
1740 			    {(char_u *)0L, (char_u *)0L}
1741 #endif
1742 			    SCRIPTID_INIT},
1743     {"lisp",	    NULL,   P_BOOL|P_VI_DEF,
1744 #ifdef FEAT_LISP
1745 			    (char_u *)&p_lisp, PV_LISP,
1746 #else
1747 			    (char_u *)NULL, PV_NONE,
1748 #endif
1749 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1750     {"lispwords",   "lw",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1751 #ifdef FEAT_LISP
1752 			    (char_u *)&p_lispwords, PV_LW,
1753 			    {(char_u *)LISPWORD_VALUE, (char_u *)0L}
1754 #else
1755 			    (char_u *)NULL, PV_NONE,
1756 			    {(char_u *)"", (char_u *)0L}
1757 #endif
1758 			    SCRIPTID_INIT},
1759     {"list",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
1760 			    (char_u *)VAR_WIN, PV_LIST,
1761 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1762     {"listchars",   "lcs",  P_STRING|P_VI_DEF|P_RALL|P_ONECOMMA|P_NODUP,
1763 			    (char_u *)&p_lcs, PV_NONE,
1764 			    {(char_u *)"eol:$", (char_u *)0L} SCRIPTID_INIT},
1765     {"loadplugins", "lpl",  P_BOOL|P_VI_DEF,
1766 			    (char_u *)&p_lpl, PV_NONE,
1767 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1768 #if defined(DYNAMIC_LUA)
1769     {"luadll",      NULL,   P_STRING|P_VI_DEF|P_SECURE,
1770 			    (char_u *)&p_luadll, PV_NONE,
1771 			    {(char_u *)DYNAMIC_LUA_DLL, (char_u *)0L}
1772 			    SCRIPTID_INIT},
1773 #endif
1774 #ifdef FEAT_GUI_MAC
1775     {"macatsui",    NULL,   P_BOOL|P_VI_DEF|P_RCLR,
1776 			    (char_u *)&p_macatsui, PV_NONE,
1777 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1778 #endif
1779     {"magic",	    NULL,   P_BOOL|P_VI_DEF,
1780 			    (char_u *)&p_magic, PV_NONE,
1781 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1782     {"makeef",	    "mef",  P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1783 #ifdef FEAT_QUICKFIX
1784 			    (char_u *)&p_mef, PV_NONE,
1785 			    {(char_u *)"", (char_u *)0L}
1786 #else
1787 			    (char_u *)NULL, PV_NONE,
1788 			    {(char_u *)NULL, (char_u *)0L}
1789 #endif
1790 			    SCRIPTID_INIT},
1791     {"makeprg",	    "mp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1792 #ifdef FEAT_QUICKFIX
1793 			    (char_u *)&p_mp, PV_MP,
1794 # ifdef VMS
1795 			    {(char_u *)"MMS", (char_u *)0L}
1796 # else
1797 			    {(char_u *)"make", (char_u *)0L}
1798 # endif
1799 #else
1800 			    (char_u *)NULL, PV_NONE,
1801 			    {(char_u *)NULL, (char_u *)0L}
1802 #endif
1803 			    SCRIPTID_INIT},
1804     {"matchpairs",  "mps",  P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
1805 			    (char_u *)&p_mps, PV_MPS,
1806 			    {(char_u *)"(:),{:},[:]", (char_u *)0L}
1807 			    SCRIPTID_INIT},
1808     {"matchtime",   "mat",  P_NUM|P_VI_DEF,
1809 			    (char_u *)&p_mat, PV_NONE,
1810 			    {(char_u *)5L, (char_u *)0L} SCRIPTID_INIT},
1811     {"maxcombine",  "mco",  P_NUM|P_VI_DEF|P_CURSWANT,
1812 #ifdef FEAT_MBYTE
1813 			    (char_u *)&p_mco, PV_NONE,
1814 #else
1815 			    (char_u *)NULL, PV_NONE,
1816 #endif
1817 			    {(char_u *)2, (char_u *)0L} SCRIPTID_INIT},
1818     {"maxfuncdepth", "mfd", P_NUM|P_VI_DEF,
1819 #ifdef FEAT_EVAL
1820 			    (char_u *)&p_mfd, PV_NONE,
1821 #else
1822 			    (char_u *)NULL, PV_NONE,
1823 #endif
1824 			    {(char_u *)100L, (char_u *)0L} SCRIPTID_INIT},
1825     {"maxmapdepth", "mmd",  P_NUM|P_VI_DEF,
1826 			    (char_u *)&p_mmd, PV_NONE,
1827 			    {(char_u *)1000L, (char_u *)0L} SCRIPTID_INIT},
1828     {"maxmem",	    "mm",   P_NUM|P_VI_DEF,
1829 			    (char_u *)&p_mm, PV_NONE,
1830 			    {(char_u *)DFLT_MAXMEM, (char_u *)0L}
1831 			    SCRIPTID_INIT},
1832     {"maxmempattern","mmp", P_NUM|P_VI_DEF,
1833 			    (char_u *)&p_mmp, PV_NONE,
1834 			    {(char_u *)1000L, (char_u *)0L} SCRIPTID_INIT},
1835     {"maxmemtot",   "mmt",  P_NUM|P_VI_DEF,
1836 			    (char_u *)&p_mmt, PV_NONE,
1837 			    {(char_u *)DFLT_MAXMEMTOT, (char_u *)0L}
1838 			    SCRIPTID_INIT},
1839     {"menuitems",   "mis",  P_NUM|P_VI_DEF,
1840 #ifdef FEAT_MENU
1841 			    (char_u *)&p_mis, PV_NONE,
1842 #else
1843 			    (char_u *)NULL, PV_NONE,
1844 #endif
1845 			    {(char_u *)25L, (char_u *)0L} SCRIPTID_INIT},
1846     {"mesg",	    NULL,   P_BOOL|P_VI_DEF,
1847 			    (char_u *)NULL, PV_NONE,
1848 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1849     {"mkspellmem",  "msm",  P_STRING|P_VI_DEF|P_EXPAND|P_SECURE,
1850 #ifdef FEAT_SPELL
1851 			    (char_u *)&p_msm, PV_NONE,
1852 			    {(char_u *)"460000,2000,500", (char_u *)0L}
1853 #else
1854 			    (char_u *)NULL, PV_NONE,
1855 			    {(char_u *)0L, (char_u *)0L}
1856 #endif
1857 			    SCRIPTID_INIT},
1858     {"modeline",    "ml",   P_BOOL|P_VIM,
1859 			    (char_u *)&p_ml, PV_ML,
1860 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
1861     {"modelines",   "mls",  P_NUM|P_VI_DEF,
1862 			    (char_u *)&p_mls, PV_NONE,
1863 			    {(char_u *)5L, (char_u *)0L} SCRIPTID_INIT},
1864     {"modifiable",  "ma",   P_BOOL|P_VI_DEF|P_NOGLOB,
1865 			    (char_u *)&p_ma, PV_MA,
1866 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1867     {"modified",    "mod",  P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
1868 			    (char_u *)&p_mod, PV_MOD,
1869 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1870     {"more",	    NULL,   P_BOOL|P_VIM,
1871 			    (char_u *)&p_more, PV_NONE,
1872 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
1873     {"mouse",	    NULL,   P_STRING|P_VI_DEF|P_FLAGLIST,
1874 			    (char_u *)&p_mouse, PV_NONE,
1875 			    {
1876 #if defined(WIN3264)
1877 				(char_u *)"a",
1878 #else
1879 				(char_u *)"",
1880 #endif
1881 				(char_u *)0L} SCRIPTID_INIT},
1882     {"mousefocus",   "mousef", P_BOOL|P_VI_DEF,
1883 #ifdef FEAT_GUI
1884 			    (char_u *)&p_mousef, PV_NONE,
1885 #else
1886 			    (char_u *)NULL, PV_NONE,
1887 #endif
1888 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1889     {"mousehide",   "mh",   P_BOOL|P_VI_DEF,
1890 #ifdef FEAT_GUI
1891 			    (char_u *)&p_mh, PV_NONE,
1892 #else
1893 			    (char_u *)NULL, PV_NONE,
1894 #endif
1895 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1896     {"mousemodel",  "mousem", P_STRING|P_VI_DEF,
1897 			    (char_u *)&p_mousem, PV_NONE,
1898 			    {
1899 #if defined(MSWIN)
1900 				(char_u *)"popup",
1901 #else
1902 # if defined(MACOS)
1903 				(char_u *)"popup_setpos",
1904 # else
1905 				(char_u *)"extend",
1906 # endif
1907 #endif
1908 				(char_u *)0L} SCRIPTID_INIT},
1909     {"mouseshape",  "mouses",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1910 #ifdef FEAT_MOUSESHAPE
1911 			    (char_u *)&p_mouseshape, PV_NONE,
1912 			    {(char_u *)"i-r:beam,s:updown,sd:udsizing,vs:leftright,vd:lrsizing,m:no,ml:up-arrow,v:rightup-arrow", (char_u *)0L}
1913 #else
1914 			    (char_u *)NULL, PV_NONE,
1915 			    {(char_u *)NULL, (char_u *)0L}
1916 #endif
1917 			    SCRIPTID_INIT},
1918     {"mousetime",   "mouset",	P_NUM|P_VI_DEF,
1919 			    (char_u *)&p_mouset, PV_NONE,
1920 			    {(char_u *)500L, (char_u *)0L} SCRIPTID_INIT},
1921     {"mzquantum",  "mzq",   P_NUM,
1922 #ifdef FEAT_MZSCHEME
1923 			    (char_u *)&p_mzq, PV_NONE,
1924 #else
1925 			    (char_u *)NULL, PV_NONE,
1926 #endif
1927 			    {(char_u *)100L, (char_u *)100L} SCRIPTID_INIT},
1928     {"novice",	    NULL,   P_BOOL|P_VI_DEF,
1929 			    (char_u *)NULL, PV_NONE,
1930 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1931     {"nrformats",   "nf",   P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
1932 			    (char_u *)&p_nf, PV_NF,
1933 			    {(char_u *)"bin,octal,hex", (char_u *)0L}
1934 			    SCRIPTID_INIT},
1935     {"number",	    "nu",   P_BOOL|P_VI_DEF|P_RWIN,
1936 			    (char_u *)VAR_WIN, PV_NU,
1937 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1938     {"numberwidth", "nuw",  P_NUM|P_RWIN|P_VIM,
1939 #ifdef FEAT_LINEBREAK
1940 			    (char_u *)VAR_WIN, PV_NUW,
1941 #else
1942 			    (char_u *)NULL, PV_NONE,
1943 #endif
1944 			    {(char_u *)8L, (char_u *)4L} SCRIPTID_INIT},
1945     {"omnifunc",    "ofu",  P_STRING|P_ALLOCED|P_VI_DEF|P_SECURE,
1946 #ifdef FEAT_COMPL_FUNC
1947 			    (char_u *)&p_ofu, PV_OFU,
1948 			    {(char_u *)"", (char_u *)0L}
1949 #else
1950 			    (char_u *)NULL, PV_NONE,
1951 			    {(char_u *)0L, (char_u *)0L}
1952 #endif
1953 			    SCRIPTID_INIT},
1954     {"open",	    NULL,   P_BOOL|P_VI_DEF,
1955 			    (char_u *)NULL, PV_NONE,
1956 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1957     {"opendevice",  "odev", P_BOOL|P_VI_DEF,
1958 #if defined(MSWIN)
1959 			    (char_u *)&p_odev, PV_NONE,
1960 #else
1961 			    (char_u *)NULL, PV_NONE,
1962 #endif
1963 			    {(char_u *)FALSE, (char_u *)FALSE}
1964 			    SCRIPTID_INIT},
1965     {"operatorfunc", "opfunc", P_STRING|P_VI_DEF|P_SECURE,
1966 			    (char_u *)&p_opfunc, PV_NONE,
1967 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1968     {"optimize",    "opt",  P_BOOL|P_VI_DEF,
1969 			    (char_u *)NULL, PV_NONE,
1970 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1971     {"osfiletype",  "oft",  P_STRING|P_ALLOCED|P_VI_DEF,
1972 			    (char_u *)NULL, PV_NONE,
1973 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
1974     {"packpath",    "pp",   P_STRING|P_VI_DEF|P_EXPAND|P_ONECOMMA|P_NODUP
1975 								    |P_SECURE,
1976 			    (char_u *)&p_pp, PV_NONE,
1977 			    {(char_u *)DFLT_RUNTIMEPATH, (char_u *)0L}
1978 			    SCRIPTID_INIT},
1979     {"paragraphs",  "para", P_STRING|P_VI_DEF,
1980 			    (char_u *)&p_para, PV_NONE,
1981 			    {(char_u *)"IPLPPPQPP TPHPLIPpLpItpplpipbp",
1982 				(char_u *)0L} SCRIPTID_INIT},
1983     {"paste",	    NULL,   P_BOOL|P_VI_DEF|P_PRI_MKRC,
1984 			    (char_u *)&p_paste, PV_NONE,
1985 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1986     {"pastetoggle", "pt",   P_STRING|P_VI_DEF,
1987 			    (char_u *)&p_pt, PV_NONE,
1988 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1989     {"patchexpr",   "pex",  P_STRING|P_VI_DEF|P_SECURE,
1990 #if defined(FEAT_DIFF) && defined(FEAT_EVAL)
1991 			    (char_u *)&p_pex, PV_NONE,
1992 			    {(char_u *)"", (char_u *)0L}
1993 #else
1994 			    (char_u *)NULL, PV_NONE,
1995 			    {(char_u *)0L, (char_u *)0L}
1996 #endif
1997 			    SCRIPTID_INIT},
1998     {"patchmode",   "pm",   P_STRING|P_VI_DEF|P_NFNAME,
1999 			    (char_u *)&p_pm, PV_NONE,
2000 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2001     {"path",	    "pa",   P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
2002 			    (char_u *)&p_path, PV_PATH,
2003 			    {
2004 #if defined(AMIGA) || defined(MSWIN)
2005 			    (char_u *)".,,",
2006 #else
2007 # if defined(__EMX__)
2008 			    (char_u *)".,/emx/include,,",
2009 # else /* Unix, probably */
2010 			    (char_u *)".,/usr/include,,",
2011 # endif
2012 #endif
2013 				(char_u *)0L} SCRIPTID_INIT},
2014 #if defined(DYNAMIC_PERL)
2015     {"perldll",     NULL,   P_STRING|P_VI_DEF|P_SECURE,
2016 			    (char_u *)&p_perldll, PV_NONE,
2017 			    {(char_u *)DYNAMIC_PERL_DLL, (char_u *)0L}
2018 			    SCRIPTID_INIT},
2019 #endif
2020     {"preserveindent", "pi", P_BOOL|P_VI_DEF|P_VIM,
2021 			    (char_u *)&p_pi, PV_PI,
2022 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2023     {"previewheight", "pvh", P_NUM|P_VI_DEF,
2024 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2025 			    (char_u *)&p_pvh, PV_NONE,
2026 #else
2027 			    (char_u *)NULL, PV_NONE,
2028 #endif
2029 			    {(char_u *)12L, (char_u *)0L} SCRIPTID_INIT},
2030     {"previewwindow", "pvw", P_BOOL|P_VI_DEF|P_RSTAT|P_NOGLOB,
2031 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2032 			    (char_u *)VAR_WIN, PV_PVW,
2033 #else
2034 			    (char_u *)NULL, PV_NONE,
2035 #endif
2036 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2037     {"printdevice", "pdev", P_STRING|P_VI_DEF|P_SECURE,
2038 #ifdef FEAT_PRINTER
2039 			    (char_u *)&p_pdev, PV_NONE,
2040 			    {(char_u *)"", (char_u *)0L}
2041 #else
2042 			    (char_u *)NULL, PV_NONE,
2043 			    {(char_u *)NULL, (char_u *)0L}
2044 #endif
2045 			    SCRIPTID_INIT},
2046     {"printencoding", "penc", P_STRING|P_VI_DEF,
2047 #ifdef FEAT_POSTSCRIPT
2048 			    (char_u *)&p_penc, PV_NONE,
2049 			    {(char_u *)"", (char_u *)0L}
2050 #else
2051 			    (char_u *)NULL, PV_NONE,
2052 			    {(char_u *)NULL, (char_u *)0L}
2053 #endif
2054 			    SCRIPTID_INIT},
2055     {"printexpr", "pexpr",  P_STRING|P_VI_DEF,
2056 #ifdef FEAT_POSTSCRIPT
2057 			    (char_u *)&p_pexpr, PV_NONE,
2058 			    {(char_u *)"", (char_u *)0L}
2059 #else
2060 			    (char_u *)NULL, PV_NONE,
2061 			    {(char_u *)NULL, (char_u *)0L}
2062 #endif
2063 			    SCRIPTID_INIT},
2064     {"printfont", "pfn",    P_STRING|P_VI_DEF,
2065 #ifdef FEAT_PRINTER
2066 			    (char_u *)&p_pfn, PV_NONE,
2067 			    {
2068 # ifdef MSWIN
2069 				(char_u *)"Courier_New:h10",
2070 # else
2071 				(char_u *)"courier",
2072 # endif
2073 				(char_u *)0L}
2074 #else
2075 			    (char_u *)NULL, PV_NONE,
2076 			    {(char_u *)NULL, (char_u *)0L}
2077 #endif
2078 			    SCRIPTID_INIT},
2079     {"printheader", "pheader",  P_STRING|P_VI_DEF|P_GETTEXT,
2080 #ifdef FEAT_PRINTER
2081 			    (char_u *)&p_header, PV_NONE,
2082 			    {(char_u *)N_("%<%f%h%m%=Page %N"), (char_u *)0L}
2083 #else
2084 			    (char_u *)NULL, PV_NONE,
2085 			    {(char_u *)NULL, (char_u *)0L}
2086 #endif
2087 			    SCRIPTID_INIT},
2088    {"printmbcharset", "pmbcs",  P_STRING|P_VI_DEF,
2089 #if defined(FEAT_POSTSCRIPT) && defined(FEAT_MBYTE)
2090 			    (char_u *)&p_pmcs, PV_NONE,
2091 			    {(char_u *)"", (char_u *)0L}
2092 #else
2093 			    (char_u *)NULL, PV_NONE,
2094 			    {(char_u *)NULL, (char_u *)0L}
2095 #endif
2096 			    SCRIPTID_INIT},
2097     {"printmbfont", "pmbfn",  P_STRING|P_VI_DEF,
2098 #if defined(FEAT_POSTSCRIPT) && defined(FEAT_MBYTE)
2099 			    (char_u *)&p_pmfn, PV_NONE,
2100 			    {(char_u *)"", (char_u *)0L}
2101 #else
2102 			    (char_u *)NULL, PV_NONE,
2103 			    {(char_u *)NULL, (char_u *)0L}
2104 #endif
2105 			    SCRIPTID_INIT},
2106     {"printoptions", "popt", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2107 #ifdef FEAT_PRINTER
2108 			    (char_u *)&p_popt, PV_NONE,
2109 			    {(char_u *)"", (char_u *)0L}
2110 #else
2111 			    (char_u *)NULL, PV_NONE,
2112 			    {(char_u *)NULL, (char_u *)0L}
2113 #endif
2114 			    SCRIPTID_INIT},
2115     {"prompt",	    NULL,   P_BOOL|P_VI_DEF,
2116 			    (char_u *)&p_prompt, PV_NONE,
2117 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2118     {"pumheight",   "ph",   P_NUM|P_VI_DEF,
2119 #ifdef FEAT_INS_EXPAND
2120 			    (char_u *)&p_ph, PV_NONE,
2121 #else
2122 			    (char_u *)NULL, PV_NONE,
2123 #endif
2124 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2125 #if defined(DYNAMIC_PYTHON3)
2126     {"pythonthreedll",  NULL,   P_STRING|P_VI_DEF|P_SECURE,
2127 			    (char_u *)&p_py3dll, PV_NONE,
2128 			    {(char_u *)DYNAMIC_PYTHON3_DLL, (char_u *)0L}
2129 			    SCRIPTID_INIT},
2130 #endif
2131 #if defined(DYNAMIC_PYTHON)
2132     {"pythondll",   NULL,   P_STRING|P_VI_DEF|P_SECURE,
2133 			    (char_u *)&p_pydll, PV_NONE,
2134 			    {(char_u *)DYNAMIC_PYTHON_DLL, (char_u *)0L}
2135 			    SCRIPTID_INIT},
2136 #endif
2137     {"quoteescape", "qe",   P_STRING|P_ALLOCED|P_VI_DEF,
2138 #ifdef FEAT_TEXTOBJ
2139 			    (char_u *)&p_qe, PV_QE,
2140 			    {(char_u *)"\\", (char_u *)0L}
2141 #else
2142 			    (char_u *)NULL, PV_NONE,
2143 			    {(char_u *)NULL, (char_u *)0L}
2144 #endif
2145 			    SCRIPTID_INIT},
2146     {"readonly",    "ro",   P_BOOL|P_VI_DEF|P_RSTAT|P_NOGLOB,
2147 			    (char_u *)&p_ro, PV_RO,
2148 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2149     {"redraw",	    NULL,   P_BOOL|P_VI_DEF,
2150 			    (char_u *)NULL, PV_NONE,
2151 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2152     {"redrawtime",  "rdt",  P_NUM|P_VI_DEF,
2153 #ifdef FEAT_RELTIME
2154 			    (char_u *)&p_rdt, PV_NONE,
2155 #else
2156 			    (char_u *)NULL, PV_NONE,
2157 #endif
2158 			    {(char_u *)2000L, (char_u *)0L} SCRIPTID_INIT},
2159     {"regexpengine", "re",  P_NUM|P_VI_DEF,
2160 			    (char_u *)&p_re, PV_NONE,
2161 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2162     {"relativenumber", "rnu", P_BOOL|P_VI_DEF|P_RWIN,
2163 			    (char_u *)VAR_WIN, PV_RNU,
2164 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2165     {"remap",	    NULL,   P_BOOL|P_VI_DEF,
2166 			    (char_u *)&p_remap, PV_NONE,
2167 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2168     {"renderoptions", "rop", P_STRING|P_ONECOMMA|P_RCLR|P_VI_DEF,
2169 #ifdef FEAT_RENDER_OPTIONS
2170 			    (char_u *)&p_rop, PV_NONE,
2171 			    {(char_u *)"", (char_u *)0L}
2172 #else
2173 			    (char_u *)NULL, PV_NONE,
2174 			    {(char_u *)NULL, (char_u *)0L}
2175 #endif
2176 			    SCRIPTID_INIT},
2177     {"report",	    NULL,   P_NUM|P_VI_DEF,
2178 			    (char_u *)&p_report, PV_NONE,
2179 			    {(char_u *)2L, (char_u *)0L} SCRIPTID_INIT},
2180     {"restorescreen", "rs", P_BOOL|P_VI_DEF,
2181 #ifdef WIN3264
2182 			    (char_u *)&p_rs, PV_NONE,
2183 #else
2184 			    (char_u *)NULL, PV_NONE,
2185 #endif
2186 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2187     {"revins",	    "ri",   P_BOOL|P_VI_DEF|P_VIM,
2188 #ifdef FEAT_RIGHTLEFT
2189 			    (char_u *)&p_ri, PV_NONE,
2190 #else
2191 			    (char_u *)NULL, PV_NONE,
2192 #endif
2193 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2194     {"rightleft",   "rl",   P_BOOL|P_VI_DEF|P_RWIN,
2195 #ifdef FEAT_RIGHTLEFT
2196 			    (char_u *)VAR_WIN, PV_RL,
2197 #else
2198 			    (char_u *)NULL, PV_NONE,
2199 #endif
2200 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2201     {"rightleftcmd", "rlc", P_STRING|P_ALLOCED|P_VI_DEF|P_RWIN,
2202 #ifdef FEAT_RIGHTLEFT
2203 			    (char_u *)VAR_WIN, PV_RLC,
2204 			    {(char_u *)"search", (char_u *)NULL}
2205 #else
2206 			    (char_u *)NULL, PV_NONE,
2207 			    {(char_u *)NULL, (char_u *)0L}
2208 #endif
2209 			    SCRIPTID_INIT},
2210 #if defined(DYNAMIC_RUBY)
2211     {"rubydll",     NULL,   P_STRING|P_VI_DEF|P_SECURE,
2212 			    (char_u *)&p_rubydll, PV_NONE,
2213 			    {(char_u *)DYNAMIC_RUBY_DLL, (char_u *)0L}
2214 			    SCRIPTID_INIT},
2215 #endif
2216     {"ruler",	    "ru",   P_BOOL|P_VI_DEF|P_VIM|P_RSTAT,
2217 #ifdef FEAT_CMDL_INFO
2218 			    (char_u *)&p_ru, PV_NONE,
2219 #else
2220 			    (char_u *)NULL, PV_NONE,
2221 #endif
2222 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2223     {"rulerformat", "ruf",  P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT,
2224 #ifdef FEAT_STL_OPT
2225 			    (char_u *)&p_ruf, PV_NONE,
2226 #else
2227 			    (char_u *)NULL, PV_NONE,
2228 #endif
2229 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2230     {"runtimepath", "rtp",  P_STRING|P_VI_DEF|P_EXPAND|P_ONECOMMA|P_NODUP
2231 								    |P_SECURE,
2232 			    (char_u *)&p_rtp, PV_NONE,
2233 			    {(char_u *)DFLT_RUNTIMEPATH, (char_u *)0L}
2234 			    SCRIPTID_INIT},
2235     {"scroll",	    "scr",  P_NUM|P_NO_MKRC|P_VI_DEF,
2236 			    (char_u *)VAR_WIN, PV_SCROLL,
2237 			    {(char_u *)12L, (char_u *)0L} SCRIPTID_INIT},
2238     {"scrollbind",  "scb",  P_BOOL|P_VI_DEF,
2239 #ifdef FEAT_SCROLLBIND
2240 			    (char_u *)VAR_WIN, PV_SCBIND,
2241 #else
2242 			    (char_u *)NULL, PV_NONE,
2243 #endif
2244 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2245     {"scrolljump",  "sj",   P_NUM|P_VI_DEF|P_VIM,
2246 			    (char_u *)&p_sj, PV_NONE,
2247 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2248     {"scrolloff",   "so",   P_NUM|P_VI_DEF|P_VIM|P_RALL,
2249 			    (char_u *)&p_so, PV_NONE,
2250 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2251     {"scrollopt",   "sbo",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2252 #ifdef FEAT_SCROLLBIND
2253 			    (char_u *)&p_sbo, PV_NONE,
2254 			    {(char_u *)"ver,jump", (char_u *)0L}
2255 #else
2256 			    (char_u *)NULL, PV_NONE,
2257 			    {(char_u *)0L, (char_u *)0L}
2258 #endif
2259 			    SCRIPTID_INIT},
2260     {"sections",    "sect", P_STRING|P_VI_DEF,
2261 			    (char_u *)&p_sections, PV_NONE,
2262 			    {(char_u *)"SHNHH HUnhsh", (char_u *)0L}
2263 			    SCRIPTID_INIT},
2264     {"secure",	    NULL,   P_BOOL|P_VI_DEF|P_SECURE,
2265 			    (char_u *)&p_secure, PV_NONE,
2266 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2267     {"selection",   "sel",  P_STRING|P_VI_DEF,
2268 			    (char_u *)&p_sel, PV_NONE,
2269 			    {(char_u *)"inclusive", (char_u *)0L}
2270 			    SCRIPTID_INIT},
2271     {"selectmode",  "slm",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2272 			    (char_u *)&p_slm, PV_NONE,
2273 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2274     {"sessionoptions", "ssop", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2275 #ifdef FEAT_SESSION
2276 			    (char_u *)&p_ssop, PV_NONE,
2277 	 {(char_u *)"blank,buffers,curdir,folds,help,options,tabpages,winsize",
2278 							       (char_u *)0L}
2279 #else
2280 			    (char_u *)NULL, PV_NONE,
2281 			    {(char_u *)0L, (char_u *)0L}
2282 #endif
2283 			    SCRIPTID_INIT},
2284     {"shell",	    "sh",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
2285 			    (char_u *)&p_sh, PV_NONE,
2286 			    {
2287 #ifdef VMS
2288 			    (char_u *)"-",
2289 #else
2290 # if defined(WIN3264)
2291 			    (char_u *)"",	/* set in set_init_1() */
2292 # else
2293 			    (char_u *)"sh",
2294 # endif
2295 #endif /* VMS */
2296 				(char_u *)0L} SCRIPTID_INIT},
2297     {"shellcmdflag","shcf", P_STRING|P_VI_DEF|P_SECURE,
2298 			    (char_u *)&p_shcf, PV_NONE,
2299 			    {
2300 #if defined(MSWIN)
2301 			    (char_u *)"/c",
2302 #else
2303 			    (char_u *)"-c",
2304 #endif
2305 				(char_u *)0L} SCRIPTID_INIT},
2306     {"shellpipe",   "sp",   P_STRING|P_VI_DEF|P_SECURE,
2307 #ifdef FEAT_QUICKFIX
2308 			    (char_u *)&p_sp, PV_NONE,
2309 			    {
2310 #if defined(UNIX)
2311 			    (char_u *)"| tee",
2312 #else
2313 			    (char_u *)">",
2314 #endif
2315 				(char_u *)0L}
2316 #else
2317 			    (char_u *)NULL, PV_NONE,
2318 			    {(char_u *)0L, (char_u *)0L}
2319 #endif
2320 			    SCRIPTID_INIT},
2321     {"shellquote",  "shq",  P_STRING|P_VI_DEF|P_SECURE,
2322 			    (char_u *)&p_shq, PV_NONE,
2323 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2324     {"shellredir",  "srr",  P_STRING|P_VI_DEF|P_SECURE,
2325 			    (char_u *)&p_srr, PV_NONE,
2326 			    {(char_u *)">", (char_u *)0L} SCRIPTID_INIT},
2327     {"shellslash",  "ssl",   P_BOOL|P_VI_DEF,
2328 #ifdef BACKSLASH_IN_FILENAME
2329 			    (char_u *)&p_ssl, PV_NONE,
2330 #else
2331 			    (char_u *)NULL, PV_NONE,
2332 #endif
2333 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2334     {"shelltemp",   "stmp", P_BOOL,
2335 			    (char_u *)&p_stmp, PV_NONE,
2336 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
2337     {"shelltype",   "st",   P_NUM|P_VI_DEF,
2338 #ifdef AMIGA
2339 			    (char_u *)&p_st, PV_NONE,
2340 #else
2341 			    (char_u *)NULL, PV_NONE,
2342 #endif
2343 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2344     {"shellxquote", "sxq",  P_STRING|P_VI_DEF|P_SECURE,
2345 			    (char_u *)&p_sxq, PV_NONE,
2346 			    {
2347 #if defined(UNIX) && defined(USE_SYSTEM) && !defined(__EMX__)
2348 			    (char_u *)"\"",
2349 #else
2350 			    (char_u *)"",
2351 #endif
2352 				(char_u *)0L} SCRIPTID_INIT},
2353     {"shellxescape", "sxe", P_STRING|P_VI_DEF|P_SECURE,
2354 			    (char_u *)&p_sxe, PV_NONE,
2355 			    {
2356 #if defined(WIN3264)
2357 			    (char_u *)"\"&|<>()@^",
2358 #else
2359 			    (char_u *)"",
2360 #endif
2361 				(char_u *)0L} SCRIPTID_INIT},
2362     {"shiftround",  "sr",   P_BOOL|P_VI_DEF|P_VIM,
2363 			    (char_u *)&p_sr, PV_NONE,
2364 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2365     {"shiftwidth",  "sw",   P_NUM|P_VI_DEF,
2366 			    (char_u *)&p_sw, PV_SW,
2367 			    {(char_u *)8L, (char_u *)0L} SCRIPTID_INIT},
2368     {"shortmess",   "shm",  P_STRING|P_VIM|P_FLAGLIST,
2369 			    (char_u *)&p_shm, PV_NONE,
2370 			    {(char_u *)"", (char_u *)"filnxtToO"}
2371 			    SCRIPTID_INIT},
2372     {"shortname",   "sn",   P_BOOL|P_VI_DEF,
2373 			    (char_u *)&p_sn, PV_SN,
2374 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2375     {"showbreak",   "sbr",  P_STRING|P_VI_DEF|P_RALL,
2376 #ifdef FEAT_LINEBREAK
2377 			    (char_u *)&p_sbr, PV_NONE,
2378 #else
2379 			    (char_u *)NULL, PV_NONE,
2380 #endif
2381 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2382     {"showcmd",	    "sc",   P_BOOL|P_VIM,
2383 #ifdef FEAT_CMDL_INFO
2384 			    (char_u *)&p_sc, PV_NONE,
2385 #else
2386 			    (char_u *)NULL, PV_NONE,
2387 #endif
2388 			    {(char_u *)FALSE,
2389 #ifdef UNIX
2390 				(char_u *)FALSE
2391 #else
2392 				(char_u *)TRUE
2393 #endif
2394 				} SCRIPTID_INIT},
2395     {"showfulltag", "sft",  P_BOOL|P_VI_DEF,
2396 			    (char_u *)&p_sft, PV_NONE,
2397 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2398     {"showmatch",   "sm",   P_BOOL|P_VI_DEF,
2399 			    (char_u *)&p_sm, PV_NONE,
2400 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2401     {"showmode",    "smd",  P_BOOL|P_VIM,
2402 			    (char_u *)&p_smd, PV_NONE,
2403 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
2404     {"showtabline", "stal", P_NUM|P_VI_DEF|P_RALL,
2405 #ifdef FEAT_WINDOWS
2406 			    (char_u *)&p_stal, PV_NONE,
2407 #else
2408 			    (char_u *)NULL, PV_NONE,
2409 #endif
2410 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2411     {"sidescroll",  "ss",   P_NUM|P_VI_DEF,
2412 			    (char_u *)&p_ss, PV_NONE,
2413 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2414     {"sidescrolloff", "siso", P_NUM|P_VI_DEF|P_VIM|P_RBUF,
2415 			    (char_u *)&p_siso, PV_NONE,
2416 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2417     {"slowopen",    "slow", P_BOOL|P_VI_DEF,
2418 			    (char_u *)NULL, PV_NONE,
2419 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2420     {"smartcase",   "scs",  P_BOOL|P_VI_DEF|P_VIM,
2421 			    (char_u *)&p_scs, PV_NONE,
2422 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2423     {"smartindent", "si",   P_BOOL|P_VI_DEF|P_VIM,
2424 #ifdef FEAT_SMARTINDENT
2425 			    (char_u *)&p_si, PV_SI,
2426 #else
2427 			    (char_u *)NULL, PV_NONE,
2428 #endif
2429 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2430     {"smarttab",    "sta",  P_BOOL|P_VI_DEF|P_VIM,
2431 			    (char_u *)&p_sta, PV_NONE,
2432 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2433     {"softtabstop", "sts",  P_NUM|P_VI_DEF|P_VIM,
2434 			    (char_u *)&p_sts, PV_STS,
2435 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2436     {"sourceany",   NULL,   P_BOOL|P_VI_DEF,
2437 			    (char_u *)NULL, PV_NONE,
2438 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2439     {"spell",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
2440 #ifdef FEAT_SPELL
2441 			    (char_u *)VAR_WIN, PV_SPELL,
2442 #else
2443 			    (char_u *)NULL, PV_NONE,
2444 #endif
2445 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2446     {"spellcapcheck", "spc", P_STRING|P_ALLOCED|P_VI_DEF|P_RBUF,
2447 #ifdef FEAT_SPELL
2448 			    (char_u *)&p_spc, PV_SPC,
2449 			    {(char_u *)"[.?!]\\_[\\])'\"	 ]\\+", (char_u *)0L}
2450 #else
2451 			    (char_u *)NULL, PV_NONE,
2452 			    {(char_u *)0L, (char_u *)0L}
2453 #endif
2454 			    SCRIPTID_INIT},
2455     {"spellfile",   "spf",  P_STRING|P_EXPAND|P_ALLOCED|P_VI_DEF|P_SECURE
2456 								  |P_ONECOMMA,
2457 #ifdef FEAT_SPELL
2458 			    (char_u *)&p_spf, PV_SPF,
2459 			    {(char_u *)"", (char_u *)0L}
2460 #else
2461 			    (char_u *)NULL, PV_NONE,
2462 			    {(char_u *)0L, (char_u *)0L}
2463 #endif
2464 			    SCRIPTID_INIT},
2465     {"spelllang",   "spl",  P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA
2466 							     |P_RBUF|P_EXPAND,
2467 #ifdef FEAT_SPELL
2468 			    (char_u *)&p_spl, PV_SPL,
2469 			    {(char_u *)"en", (char_u *)0L}
2470 #else
2471 			    (char_u *)NULL, PV_NONE,
2472 			    {(char_u *)0L, (char_u *)0L}
2473 #endif
2474 			    SCRIPTID_INIT},
2475     {"spellsuggest", "sps", P_STRING|P_VI_DEF|P_EXPAND|P_SECURE|P_ONECOMMA,
2476 #ifdef FEAT_SPELL
2477 			    (char_u *)&p_sps, PV_NONE,
2478 			    {(char_u *)"best", (char_u *)0L}
2479 #else
2480 			    (char_u *)NULL, PV_NONE,
2481 			    {(char_u *)0L, (char_u *)0L}
2482 #endif
2483 			    SCRIPTID_INIT},
2484     {"splitbelow",  "sb",   P_BOOL|P_VI_DEF,
2485 #ifdef FEAT_WINDOWS
2486 			    (char_u *)&p_sb, PV_NONE,
2487 #else
2488 			    (char_u *)NULL, PV_NONE,
2489 #endif
2490 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2491     {"splitright",  "spr",  P_BOOL|P_VI_DEF,
2492 #ifdef FEAT_WINDOWS
2493 			    (char_u *)&p_spr, PV_NONE,
2494 #else
2495 			    (char_u *)NULL, PV_NONE,
2496 #endif
2497 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2498     {"startofline", "sol",  P_BOOL|P_VI_DEF|P_VIM,
2499 			    (char_u *)&p_sol, PV_NONE,
2500 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2501     {"statusline"  ,"stl",  P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT,
2502 #ifdef FEAT_STL_OPT
2503 			    (char_u *)&p_stl, PV_STL,
2504 #else
2505 			    (char_u *)NULL, PV_NONE,
2506 #endif
2507 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2508     {"suffixes",    "su",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2509 			    (char_u *)&p_su, PV_NONE,
2510 			    {(char_u *)".bak,~,.o,.h,.info,.swp,.obj",
2511 				(char_u *)0L} SCRIPTID_INIT},
2512     {"suffixesadd", "sua",  P_STRING|P_VI_DEF|P_ALLOCED|P_ONECOMMA|P_NODUP,
2513 #ifdef FEAT_SEARCHPATH
2514 			    (char_u *)&p_sua, PV_SUA,
2515 			    {(char_u *)"", (char_u *)0L}
2516 #else
2517 			    (char_u *)NULL, PV_NONE,
2518 			    {(char_u *)0L, (char_u *)0L}
2519 #endif
2520 			    SCRIPTID_INIT},
2521     {"swapfile",    "swf",  P_BOOL|P_VI_DEF|P_RSTAT,
2522 			    (char_u *)&p_swf, PV_SWF,
2523 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2524     {"swapsync",    "sws",  P_STRING|P_VI_DEF,
2525 			    (char_u *)&p_sws, PV_NONE,
2526 			    {(char_u *)"fsync", (char_u *)0L} SCRIPTID_INIT},
2527     {"switchbuf",   "swb",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2528 			    (char_u *)&p_swb, PV_NONE,
2529 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2530     {"synmaxcol",   "smc",  P_NUM|P_VI_DEF|P_RBUF,
2531 #ifdef FEAT_SYN_HL
2532 			    (char_u *)&p_smc, PV_SMC,
2533 			    {(char_u *)3000L, (char_u *)0L}
2534 #else
2535 			    (char_u *)NULL, PV_NONE,
2536 			    {(char_u *)0L, (char_u *)0L}
2537 #endif
2538 			    SCRIPTID_INIT},
2539     {"syntax",	    "syn",  P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB|P_NFNAME,
2540 #ifdef FEAT_SYN_HL
2541 			    (char_u *)&p_syn, PV_SYN,
2542 			    {(char_u *)"", (char_u *)0L}
2543 #else
2544 			    (char_u *)NULL, PV_NONE,
2545 			    {(char_u *)0L, (char_u *)0L}
2546 #endif
2547 			    SCRIPTID_INIT},
2548     {"tabline",	    "tal",  P_STRING|P_VI_DEF|P_RALL,
2549 #ifdef FEAT_STL_OPT
2550 			    (char_u *)&p_tal, PV_NONE,
2551 #else
2552 			    (char_u *)NULL, PV_NONE,
2553 #endif
2554 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2555     {"tabpagemax",  "tpm",  P_NUM|P_VI_DEF,
2556 #ifdef FEAT_WINDOWS
2557 			    (char_u *)&p_tpm, PV_NONE,
2558 #else
2559 			    (char_u *)NULL, PV_NONE,
2560 #endif
2561 			    {(char_u *)10L, (char_u *)0L} SCRIPTID_INIT},
2562     {"tabstop",	    "ts",   P_NUM|P_VI_DEF|P_RBUF,
2563 			    (char_u *)&p_ts, PV_TS,
2564 			    {(char_u *)8L, (char_u *)0L} SCRIPTID_INIT},
2565     {"tagbsearch",  "tbs",   P_BOOL|P_VI_DEF,
2566 			    (char_u *)&p_tbs, PV_NONE,
2567 #ifdef VMS	/* binary searching doesn't appear to work on VMS */
2568 			    {(char_u *)0L, (char_u *)0L}
2569 #else
2570 			    {(char_u *)TRUE, (char_u *)0L}
2571 #endif
2572 			    SCRIPTID_INIT},
2573     {"tagcase",	    "tc",   P_STRING|P_VIM,
2574 			    (char_u *)&p_tc, PV_TC,
2575 			    {(char_u *)"followic", (char_u *)"followic"} SCRIPTID_INIT},
2576     {"taglength",   "tl",   P_NUM|P_VI_DEF,
2577 			    (char_u *)&p_tl, PV_NONE,
2578 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2579     {"tagrelative", "tr",   P_BOOL|P_VIM,
2580 			    (char_u *)&p_tr, PV_NONE,
2581 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
2582     {"tags",	    "tag",  P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA|P_NODUP,
2583 			    (char_u *)&p_tags, PV_TAGS,
2584 			    {
2585 #if defined(FEAT_EMACS_TAGS) && !defined(CASE_INSENSITIVE_FILENAME)
2586 			    (char_u *)"./tags,./TAGS,tags,TAGS",
2587 #else
2588 			    (char_u *)"./tags,tags",
2589 #endif
2590 				(char_u *)0L} SCRIPTID_INIT},
2591     {"tagstack",    "tgst", P_BOOL|P_VI_DEF,
2592 			    (char_u *)&p_tgst, PV_NONE,
2593 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2594 #if defined(DYNAMIC_TCL)
2595     {"tcldll",      NULL,   P_STRING|P_VI_DEF|P_SECURE,
2596 			    (char_u *)&p_tcldll, PV_NONE,
2597 			    {(char_u *)DYNAMIC_TCL_DLL, (char_u *)0L}
2598 			    SCRIPTID_INIT},
2599 #endif
2600     {"term",	    NULL,   P_STRING|P_EXPAND|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RALL,
2601 			    (char_u *)&T_NAME, PV_NONE,
2602 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2603     {"termbidi", "tbidi",   P_BOOL|P_VI_DEF,
2604 #ifdef FEAT_ARABIC
2605 			    (char_u *)&p_tbidi, PV_NONE,
2606 #else
2607 			    (char_u *)NULL, PV_NONE,
2608 #endif
2609 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2610     {"termencoding", "tenc", P_STRING|P_VI_DEF|P_RCLR,
2611 #ifdef FEAT_MBYTE
2612 			    (char_u *)&p_tenc, PV_NONE,
2613 			    {(char_u *)"", (char_u *)0L}
2614 #else
2615 			    (char_u *)NULL, PV_NONE,
2616 			    {(char_u *)0L, (char_u *)0L}
2617 #endif
2618 			    SCRIPTID_INIT},
2619     {"terse",	    NULL,   P_BOOL|P_VI_DEF,
2620 			    (char_u *)&p_terse, PV_NONE,
2621 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2622     {"textauto",    "ta",   P_BOOL|P_VIM,
2623 			    (char_u *)&p_ta, PV_NONE,
2624 			    {(char_u *)DFLT_TEXTAUTO, (char_u *)TRUE}
2625 			    SCRIPTID_INIT},
2626     {"textmode",    "tx",   P_BOOL|P_VI_DEF|P_NO_MKRC,
2627 			    (char_u *)&p_tx, PV_TX,
2628 			    {
2629 #ifdef USE_CRNL
2630 			    (char_u *)TRUE,
2631 #else
2632 			    (char_u *)FALSE,
2633 #endif
2634 				(char_u *)0L} SCRIPTID_INIT},
2635     {"textwidth",   "tw",   P_NUM|P_VI_DEF|P_VIM|P_RBUF,
2636 			    (char_u *)&p_tw, PV_TW,
2637 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2638     {"thesaurus",   "tsr",  P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA|P_NODUP,
2639 #ifdef FEAT_INS_EXPAND
2640 			    (char_u *)&p_tsr, PV_TSR,
2641 #else
2642 			    (char_u *)NULL, PV_NONE,
2643 #endif
2644 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2645     {"tildeop",	    "top",  P_BOOL|P_VI_DEF|P_VIM,
2646 			    (char_u *)&p_to, PV_NONE,
2647 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2648     {"timeout",	    "to",   P_BOOL|P_VI_DEF,
2649 			    (char_u *)&p_timeout, PV_NONE,
2650 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2651     {"timeoutlen",  "tm",   P_NUM|P_VI_DEF,
2652 			    (char_u *)&p_tm, PV_NONE,
2653 			    {(char_u *)1000L, (char_u *)0L} SCRIPTID_INIT},
2654     {"title",	    NULL,   P_BOOL|P_VI_DEF,
2655 #ifdef FEAT_TITLE
2656 			    (char_u *)&p_title, PV_NONE,
2657 #else
2658 			    (char_u *)NULL, PV_NONE,
2659 #endif
2660 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2661     {"titlelen",    NULL,   P_NUM|P_VI_DEF,
2662 #ifdef FEAT_TITLE
2663 			    (char_u *)&p_titlelen, PV_NONE,
2664 #else
2665 			    (char_u *)NULL, PV_NONE,
2666 #endif
2667 			    {(char_u *)85L, (char_u *)0L} SCRIPTID_INIT},
2668     {"titleold",    NULL,   P_STRING|P_VI_DEF|P_GETTEXT|P_SECURE|P_NO_MKRC,
2669 #ifdef FEAT_TITLE
2670 			    (char_u *)&p_titleold, PV_NONE,
2671 			    {(char_u *)N_("Thanks for flying Vim"),
2672 							       (char_u *)0L}
2673 #else
2674 			    (char_u *)NULL, PV_NONE,
2675 			    {(char_u *)0L, (char_u *)0L}
2676 #endif
2677 			    SCRIPTID_INIT},
2678     {"titlestring", NULL,   P_STRING|P_VI_DEF,
2679 #ifdef FEAT_TITLE
2680 			    (char_u *)&p_titlestring, PV_NONE,
2681 #else
2682 			    (char_u *)NULL, PV_NONE,
2683 #endif
2684 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2685 #if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
2686     {"toolbar",     "tb",   P_STRING|P_ONECOMMA|P_VI_DEF|P_NODUP,
2687 			    (char_u *)&p_toolbar, PV_NONE,
2688 			    {(char_u *)"icons,tooltips", (char_u *)0L}
2689 			    SCRIPTID_INIT},
2690 #endif
2691 #if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK)
2692     {"toolbariconsize",	"tbis", P_STRING|P_VI_DEF,
2693 			    (char_u *)&p_tbis, PV_NONE,
2694 			    {(char_u *)"small", (char_u *)0L} SCRIPTID_INIT},
2695 #endif
2696     {"ttimeout",    NULL,   P_BOOL|P_VI_DEF|P_VIM,
2697 			    (char_u *)&p_ttimeout, PV_NONE,
2698 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2699     {"ttimeoutlen", "ttm",  P_NUM|P_VI_DEF,
2700 			    (char_u *)&p_ttm, PV_NONE,
2701 			    {(char_u *)-1L, (char_u *)0L} SCRIPTID_INIT},
2702     {"ttybuiltin",  "tbi",  P_BOOL|P_VI_DEF,
2703 			    (char_u *)&p_tbi, PV_NONE,
2704 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2705     {"ttyfast",	    "tf",   P_BOOL|P_NO_MKRC|P_VI_DEF,
2706 			    (char_u *)&p_tf, PV_NONE,
2707 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2708     {"ttymouse",    "ttym", P_STRING|P_NODEFAULT|P_NO_MKRC|P_VI_DEF,
2709 #if defined(FEAT_MOUSE) && (defined(UNIX) || defined(VMS))
2710 			    (char_u *)&p_ttym, PV_NONE,
2711 #else
2712 			    (char_u *)NULL, PV_NONE,
2713 #endif
2714 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2715     {"ttyscroll",   "tsl",  P_NUM|P_VI_DEF,
2716 			    (char_u *)&p_ttyscroll, PV_NONE,
2717 			    {(char_u *)999L, (char_u *)0L} SCRIPTID_INIT},
2718     {"ttytype",	    "tty",  P_STRING|P_EXPAND|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RALL,
2719 			    (char_u *)&T_NAME, PV_NONE,
2720 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2721     {"undodir",     "udir", P_STRING|P_EXPAND|P_ONECOMMA|P_NODUP|P_SECURE
2722 								    |P_VI_DEF,
2723 #ifdef FEAT_PERSISTENT_UNDO
2724 			    (char_u *)&p_udir, PV_NONE,
2725 			    {(char_u *)".", (char_u *)0L}
2726 #else
2727 			    (char_u *)NULL, PV_NONE,
2728 			    {(char_u *)0L, (char_u *)0L}
2729 #endif
2730 			    SCRIPTID_INIT},
2731     {"undofile",    "udf",  P_BOOL|P_VI_DEF|P_VIM,
2732 #ifdef FEAT_PERSISTENT_UNDO
2733 			    (char_u *)&p_udf, PV_UDF,
2734 #else
2735 			    (char_u *)NULL, PV_NONE,
2736 #endif
2737 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2738     {"undolevels",  "ul",   P_NUM|P_VI_DEF,
2739 			    (char_u *)&p_ul, PV_UL,
2740 			    {
2741 #if defined(UNIX) || defined(WIN3264) || defined(VMS)
2742 			    (char_u *)1000L,
2743 #else
2744 			    (char_u *)100L,
2745 #endif
2746 				(char_u *)0L} SCRIPTID_INIT},
2747     {"undoreload",  "ur",   P_NUM|P_VI_DEF,
2748 			    (char_u *)&p_ur, PV_NONE,
2749 			    { (char_u *)10000L, (char_u *)0L} SCRIPTID_INIT},
2750     {"updatecount", "uc",   P_NUM|P_VI_DEF,
2751 			    (char_u *)&p_uc, PV_NONE,
2752 			    {(char_u *)200L, (char_u *)0L} SCRIPTID_INIT},
2753     {"updatetime",  "ut",   P_NUM|P_VI_DEF,
2754 			    (char_u *)&p_ut, PV_NONE,
2755 			    {(char_u *)4000L, (char_u *)0L} SCRIPTID_INIT},
2756     {"verbose",	    "vbs",  P_NUM|P_VI_DEF,
2757 			    (char_u *)&p_verbose, PV_NONE,
2758 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2759     {"verbosefile", "vfile", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
2760 			    (char_u *)&p_vfile, PV_NONE,
2761 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2762     {"viewdir",     "vdir", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
2763 #ifdef FEAT_SESSION
2764 			    (char_u *)&p_vdir, PV_NONE,
2765 			    {(char_u *)DFLT_VDIR, (char_u *)0L}
2766 #else
2767 			    (char_u *)NULL, PV_NONE,
2768 			    {(char_u *)0L, (char_u *)0L}
2769 #endif
2770 			    SCRIPTID_INIT},
2771     {"viewoptions", "vop",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2772 #ifdef FEAT_SESSION
2773 			    (char_u *)&p_vop, PV_NONE,
2774 			    {(char_u *)"folds,options,cursor", (char_u *)0L}
2775 #else
2776 			    (char_u *)NULL, PV_NONE,
2777 			    {(char_u *)0L, (char_u *)0L}
2778 #endif
2779 			    SCRIPTID_INIT},
2780     {"viminfo",	    "vi",   P_STRING|P_ONECOMMA|P_NODUP|P_SECURE,
2781 #ifdef FEAT_VIMINFO
2782 			    (char_u *)&p_viminfo, PV_NONE,
2783 #if defined(MSWIN)
2784 			    {(char_u *)"", (char_u *)"'100,<50,s10,h,rA:,rB:"}
2785 #else
2786 # ifdef AMIGA
2787 			    {(char_u *)"",
2788 				 (char_u *)"'100,<50,s10,h,rdf0:,rdf1:,rdf2:"}
2789 # else
2790 			    {(char_u *)"", (char_u *)"'100,<50,s10,h"}
2791 # endif
2792 #endif
2793 #else
2794 			    (char_u *)NULL, PV_NONE,
2795 			    {(char_u *)0L, (char_u *)0L}
2796 #endif
2797 			    SCRIPTID_INIT},
2798     {"virtualedit", "ve",   P_STRING|P_ONECOMMA|P_NODUP|P_VI_DEF
2799 							    |P_VIM|P_CURSWANT,
2800 #ifdef FEAT_VIRTUALEDIT
2801 			    (char_u *)&p_ve, PV_NONE,
2802 			    {(char_u *)"", (char_u *)""}
2803 #else
2804 			    (char_u *)NULL, PV_NONE,
2805 			    {(char_u *)0L, (char_u *)0L}
2806 #endif
2807 			    SCRIPTID_INIT},
2808     {"visualbell",  "vb",   P_BOOL|P_VI_DEF,
2809 			    (char_u *)&p_vb, PV_NONE,
2810 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2811     {"w300",	    NULL,   P_NUM|P_VI_DEF,
2812 			    (char_u *)NULL, PV_NONE,
2813 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2814     {"w1200",	    NULL,   P_NUM|P_VI_DEF,
2815 			    (char_u *)NULL, PV_NONE,
2816 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2817     {"w9600",	    NULL,   P_NUM|P_VI_DEF,
2818 			    (char_u *)NULL, PV_NONE,
2819 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2820     {"warn",	    NULL,   P_BOOL|P_VI_DEF,
2821 			    (char_u *)&p_warn, PV_NONE,
2822 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2823     {"weirdinvert", "wiv",  P_BOOL|P_VI_DEF|P_RCLR,
2824 			    (char_u *)&p_wiv, PV_NONE,
2825 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2826     {"whichwrap",   "ww",   P_STRING|P_VIM|P_ONECOMMA|P_FLAGLIST,
2827 			    (char_u *)&p_ww, PV_NONE,
2828 			    {(char_u *)"", (char_u *)"b,s"} SCRIPTID_INIT},
2829     {"wildchar",    "wc",   P_NUM|P_VIM,
2830 			    (char_u *)&p_wc, PV_NONE,
2831 			    {(char_u *)(long)Ctrl_E, (char_u *)(long)TAB}
2832 			    SCRIPTID_INIT},
2833     {"wildcharm",   "wcm",  P_NUM|P_VI_DEF,
2834 			    (char_u *)&p_wcm, PV_NONE,
2835 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2836     {"wildignore",  "wig",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2837 #ifdef FEAT_WILDIGN
2838 			    (char_u *)&p_wig, PV_NONE,
2839 #else
2840 			    (char_u *)NULL, PV_NONE,
2841 #endif
2842 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2843     {"wildignorecase", "wic", P_BOOL|P_VI_DEF,
2844 			    (char_u *)&p_wic, PV_NONE,
2845 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2846     {"wildmenu",    "wmnu", P_BOOL|P_VI_DEF,
2847 #ifdef FEAT_WILDMENU
2848 			    (char_u *)&p_wmnu, PV_NONE,
2849 #else
2850 			    (char_u *)NULL, PV_NONE,
2851 #endif
2852 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2853     {"wildmode",    "wim",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2854 			    (char_u *)&p_wim, PV_NONE,
2855 			    {(char_u *)"full", (char_u *)0L} SCRIPTID_INIT},
2856     {"wildoptions", "wop",  P_STRING|P_VI_DEF,
2857 #ifdef FEAT_CMDL_COMPL
2858 			    (char_u *)&p_wop, PV_NONE,
2859 			    {(char_u *)"", (char_u *)0L}
2860 #else
2861 			    (char_u *)NULL, PV_NONE,
2862 			    {(char_u *)NULL, (char_u *)0L}
2863 #endif
2864 			    SCRIPTID_INIT},
2865     {"winaltkeys",  "wak",  P_STRING|P_VI_DEF,
2866 #ifdef FEAT_WAK
2867 			    (char_u *)&p_wak, PV_NONE,
2868 			    {(char_u *)"menu", (char_u *)0L}
2869 #else
2870 			    (char_u *)NULL, PV_NONE,
2871 			    {(char_u *)NULL, (char_u *)0L}
2872 #endif
2873 			    SCRIPTID_INIT},
2874     {"window",	    "wi",   P_NUM|P_VI_DEF,
2875 			    (char_u *)&p_window, PV_NONE,
2876 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2877     {"winheight",   "wh",   P_NUM|P_VI_DEF,
2878 #ifdef FEAT_WINDOWS
2879 			    (char_u *)&p_wh, PV_NONE,
2880 #else
2881 			    (char_u *)NULL, PV_NONE,
2882 #endif
2883 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2884     {"winfixheight", "wfh", P_BOOL|P_VI_DEF|P_RSTAT,
2885 #ifdef FEAT_WINDOWS
2886 			    (char_u *)VAR_WIN, PV_WFH,
2887 #else
2888 			    (char_u *)NULL, PV_NONE,
2889 #endif
2890 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2891     {"winfixwidth", "wfw", P_BOOL|P_VI_DEF|P_RSTAT,
2892 #ifdef FEAT_WINDOWS
2893 			    (char_u *)VAR_WIN, PV_WFW,
2894 #else
2895 			    (char_u *)NULL, PV_NONE,
2896 #endif
2897 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2898     {"winminheight", "wmh", P_NUM|P_VI_DEF,
2899 #ifdef FEAT_WINDOWS
2900 			    (char_u *)&p_wmh, PV_NONE,
2901 #else
2902 			    (char_u *)NULL, PV_NONE,
2903 #endif
2904 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2905     {"winminwidth", "wmw", P_NUM|P_VI_DEF,
2906 #ifdef FEAT_WINDOWS
2907 			    (char_u *)&p_wmw, PV_NONE,
2908 #else
2909 			    (char_u *)NULL, PV_NONE,
2910 #endif
2911 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2912     {"winwidth",   "wiw",   P_NUM|P_VI_DEF,
2913 #ifdef FEAT_WINDOWS
2914 			    (char_u *)&p_wiw, PV_NONE,
2915 #else
2916 			    (char_u *)NULL, PV_NONE,
2917 #endif
2918 			    {(char_u *)20L, (char_u *)0L} SCRIPTID_INIT},
2919     {"wrap",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
2920 			    (char_u *)VAR_WIN, PV_WRAP,
2921 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2922     {"wrapmargin",  "wm",   P_NUM|P_VI_DEF,
2923 			    (char_u *)&p_wm, PV_WM,
2924 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2925     {"wrapscan",    "ws",   P_BOOL|P_VI_DEF,
2926 			    (char_u *)&p_ws, PV_NONE,
2927 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2928     {"write",	    NULL,   P_BOOL|P_VI_DEF,
2929 			    (char_u *)&p_write, PV_NONE,
2930 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2931     {"writeany",    "wa",   P_BOOL|P_VI_DEF,
2932 			    (char_u *)&p_wa, PV_NONE,
2933 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2934     {"writebackup", "wb",   P_BOOL|P_VI_DEF|P_VIM,
2935 			    (char_u *)&p_wb, PV_NONE,
2936 			    {
2937 #ifdef FEAT_WRITEBACKUP
2938 			    (char_u *)TRUE,
2939 #else
2940 			    (char_u *)FALSE,
2941 #endif
2942 				(char_u *)0L} SCRIPTID_INIT},
2943     {"writedelay",  "wd",   P_NUM|P_VI_DEF,
2944 			    (char_u *)&p_wd, PV_NONE,
2945 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2946 
2947 /* terminal output codes */
2948 #define p_term(sss, vvv)   {sss, NULL, P_STRING|P_VI_DEF|P_RALL|P_SECURE, \
2949 			    (char_u *)&vvv, PV_NONE, \
2950 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2951 
2952     p_term("t_AB", T_CAB)
2953     p_term("t_AF", T_CAF)
2954     p_term("t_AL", T_CAL)
2955     p_term("t_al", T_AL)
2956     p_term("t_bc", T_BC)
2957     p_term("t_cd", T_CD)
2958     p_term("t_ce", T_CE)
2959     p_term("t_cl", T_CL)
2960     p_term("t_cm", T_CM)
2961     p_term("t_Ce", T_UCE)
2962     p_term("t_Co", T_CCO)
2963     p_term("t_CS", T_CCS)
2964     p_term("t_Cs", T_UCS)
2965     p_term("t_cs", T_CS)
2966 #ifdef FEAT_WINDOWS
2967     p_term("t_CV", T_CSV)
2968 #endif
2969     p_term("t_da", T_DA)
2970     p_term("t_db", T_DB)
2971     p_term("t_DL", T_CDL)
2972     p_term("t_dl", T_DL)
2973     p_term("t_EI", T_CEI)
2974     p_term("t_fs", T_FS)
2975     p_term("t_IE", T_CIE)
2976     p_term("t_IS", T_CIS)
2977     p_term("t_ke", T_KE)
2978     p_term("t_ks", T_KS)
2979     p_term("t_le", T_LE)
2980     p_term("t_mb", T_MB)
2981     p_term("t_md", T_MD)
2982     p_term("t_me", T_ME)
2983     p_term("t_mr", T_MR)
2984     p_term("t_ms", T_MS)
2985     p_term("t_nd", T_ND)
2986     p_term("t_op", T_OP)
2987     p_term("t_RB", T_RBG)
2988     p_term("t_RI", T_CRI)
2989     p_term("t_RV", T_CRV)
2990     p_term("t_Sb", T_CSB)
2991     p_term("t_se", T_SE)
2992     p_term("t_Sf", T_CSF)
2993     p_term("t_SI", T_CSI)
2994     p_term("t_so", T_SO)
2995     p_term("t_SR", T_CSR)
2996     p_term("t_sr", T_SR)
2997     p_term("t_te", T_TE)
2998     p_term("t_ti", T_TI)
2999     p_term("t_ts", T_TS)
3000     p_term("t_u7", T_U7)
3001     p_term("t_ue", T_UE)
3002     p_term("t_us", T_US)
3003     p_term("t_ut", T_UT)
3004     p_term("t_vb", T_VB)
3005     p_term("t_ve", T_VE)
3006     p_term("t_vi", T_VI)
3007     p_term("t_vs", T_VS)
3008     p_term("t_WP", T_CWP)
3009     p_term("t_WS", T_CWS)
3010     p_term("t_xn", T_XN)
3011     p_term("t_xs", T_XS)
3012     p_term("t_ZH", T_CZH)
3013     p_term("t_ZR", T_CZR)
3014 
3015 /* terminal key codes are not in here */
3016 
3017     /* end marker */
3018     {NULL, NULL, 0, NULL, PV_NONE, {NULL, NULL} SCRIPTID_INIT}
3019 };
3020 
3021 #define PARAM_COUNT (sizeof(options) / sizeof(struct vimoption))
3022 
3023 #ifdef FEAT_MBYTE
3024 static char *(p_ambw_values[]) = {"single", "double", NULL};
3025 #endif
3026 static char *(p_bg_values[]) = {"light", "dark", NULL};
3027 static char *(p_nf_values[]) = {"bin", "octal", "hex", "alpha", NULL};
3028 static char *(p_ff_values[]) = {FF_UNIX, FF_DOS, FF_MAC, NULL};
3029 #ifdef FEAT_CRYPT
3030 static char *(p_cm_values[]) = {"zip", "blowfish", "blowfish2", NULL};
3031 #endif
3032 #ifdef FEAT_CMDL_COMPL
3033 static char *(p_wop_values[]) = {"tagfile", NULL};
3034 #endif
3035 #ifdef FEAT_WAK
3036 static char *(p_wak_values[]) = {"yes", "menu", "no", NULL};
3037 #endif
3038 static char *(p_mousem_values[]) = {"extend", "popup", "popup_setpos", "mac", NULL};
3039 static char *(p_sel_values[]) = {"inclusive", "exclusive", "old", NULL};
3040 static char *(p_slm_values[]) = {"mouse", "key", "cmd", NULL};
3041 static char *(p_km_values[]) = {"startsel", "stopsel", NULL};
3042 #ifdef FEAT_BROWSE
3043 static char *(p_bsdir_values[]) = {"current", "last", "buffer", NULL};
3044 #endif
3045 #ifdef FEAT_SCROLLBIND
3046 static char *(p_scbopt_values[]) = {"ver", "hor", "jump", NULL};
3047 #endif
3048 static char *(p_debug_values[]) = {"msg", "throw", "beep", NULL};
3049 #ifdef FEAT_WINDOWS
3050 static char *(p_ead_values[]) = {"both", "ver", "hor", NULL};
3051 #endif
3052 #if defined(FEAT_QUICKFIX)
3053 # ifdef FEAT_AUTOCMD
3054 static char *(p_buftype_values[]) = {"nofile", "nowrite", "quickfix", "help", "acwrite", NULL};
3055 # else
3056 static char *(p_buftype_values[]) = {"nofile", "nowrite", "quickfix", "help", NULL};
3057 # endif
3058 static char *(p_bufhidden_values[]) = {"hide", "unload", "delete", "wipe", NULL};
3059 #endif
3060 static char *(p_bs_values[]) = {"indent", "eol", "start", NULL};
3061 #ifdef FEAT_FOLDING
3062 static char *(p_fdm_values[]) = {"manual", "expr", "marker", "indent", "syntax",
3063 # ifdef FEAT_DIFF
3064 				"diff",
3065 # endif
3066 				NULL};
3067 static char *(p_fcl_values[]) = {"all", NULL};
3068 #endif
3069 #ifdef FEAT_INS_EXPAND
3070 static char *(p_cot_values[]) = {"menu", "menuone", "longest", "preview", "noinsert", "noselect", NULL};
3071 #endif
3072 
3073 static void set_option_default(int, int opt_flags, int compatible);
3074 static void set_options_default(int opt_flags);
3075 static char_u *term_bg_default(void);
3076 static void did_set_option(int opt_idx, int opt_flags, int new_value);
3077 static char_u *illegal_char(char_u *, int);
3078 static int string_to_key(char_u *arg);
3079 #ifdef FEAT_CMDWIN
3080 static char_u *check_cedit(void);
3081 #endif
3082 #ifdef FEAT_TITLE
3083 static void did_set_title(int icon);
3084 #endif
3085 static char_u *option_expand(int opt_idx, char_u *val);
3086 static void didset_options(void);
3087 static void didset_options2(void);
3088 static void check_string_option(char_u **pp);
3089 #if defined(FEAT_EVAL) || defined(PROTO)
3090 static long_u *insecure_flag(int opt_idx, int opt_flags);
3091 #else
3092 # define insecure_flag(opt_idx, opt_flags) (&options[opt_idx].flags)
3093 #endif
3094 static void set_string_option_global(int opt_idx, char_u **varp);
3095 static char_u *set_string_option(int opt_idx, char_u *value, int opt_flags);
3096 static char_u *did_set_string_option(int opt_idx, char_u **varp, int new_value_alloced, char_u *oldval, char_u *errbuf, int opt_flags);
3097 static char_u *set_chars_option(char_u **varp);
3098 #ifdef FEAT_SYN_HL
3099 static int int_cmp(const void *a, const void *b);
3100 #endif
3101 #ifdef FEAT_CLIPBOARD
3102 static char_u *check_clipboard_option(void);
3103 #endif
3104 #ifdef FEAT_SPELL
3105 static char_u *did_set_spell_option(int is_spellfile);
3106 static char_u *compile_cap_prog(synblock_T *synblock);
3107 #endif
3108 #ifdef FEAT_EVAL
3109 static void set_option_scriptID_idx(int opt_idx, int opt_flags, int id);
3110 #endif
3111 static char_u *set_bool_option(int opt_idx, char_u *varp, int value, int opt_flags);
3112 static char_u *set_num_option(int opt_idx, char_u *varp, long value, char_u *errbuf, size_t errbuflen, int opt_flags);
3113 static void check_redraw(long_u flags);
3114 static int findoption(char_u *);
3115 static int find_key_option(char_u *);
3116 static void showoptions(int all, int opt_flags);
3117 static int optval_default(struct vimoption *, char_u *varp);
3118 static void showoneopt(struct vimoption *, int opt_flags);
3119 static int put_setstring(FILE *fd, char *cmd, char *name, char_u **valuep, int expand);
3120 static int put_setnum(FILE *fd, char *cmd, char *name, long *valuep);
3121 static int put_setbool(FILE *fd, char *cmd, char *name, int value);
3122 static int  istermoption(struct vimoption *);
3123 static char_u *get_varp_scope(struct vimoption *p, int opt_flags);
3124 static char_u *get_varp(struct vimoption *);
3125 static void option_value2string(struct vimoption *, int opt_flags);
3126 static void check_winopt(winopt_T *wop);
3127 static int wc_use_keyname(char_u *varp, long *wcp);
3128 #ifdef FEAT_LANGMAP
3129 static void langmap_init(void);
3130 static void langmap_set(void);
3131 #endif
3132 static void paste_option_changed(void);
3133 static void compatible_set(void);
3134 #ifdef FEAT_LINEBREAK
3135 static void fill_breakat_flags(void);
3136 #endif
3137 static int opt_strings_flags(char_u *val, char **values, unsigned *flagp, int list);
3138 static int check_opt_strings(char_u *val, char **values, int);
3139 static int check_opt_wim(void);
3140 #ifdef FEAT_LINEBREAK
3141 static int briopt_check(win_T *wp);
3142 #endif
3143 
3144 /*
3145  * Initialize the options, first part.
3146  *
3147  * Called only once from main(), just after creating the first buffer.
3148  */
3149     void
3150 set_init_1(void)
3151 {
3152     char_u	*p;
3153     int		opt_idx;
3154     long_u	n;
3155 
3156 #ifdef FEAT_LANGMAP
3157     langmap_init();
3158 #endif
3159 
3160     /* Be Vi compatible by default */
3161     p_cp = TRUE;
3162 
3163     /* Use POSIX compatibility when $VIM_POSIX is set. */
3164     if (mch_getenv((char_u *)"VIM_POSIX") != NULL)
3165     {
3166 	set_string_default("cpo", (char_u *)CPO_ALL);
3167 	set_string_default("shm", (char_u *)"A");
3168     }
3169 
3170     /*
3171      * Find default value for 'shell' option.
3172      * Don't use it if it is empty.
3173      */
3174     if (((p = mch_getenv((char_u *)"SHELL")) != NULL && *p != NUL)
3175 #if defined(MSWIN)
3176 # ifdef __EMX__
3177 	    || ((p = mch_getenv((char_u *)"EMXSHELL")) != NULL && *p != NUL)
3178 # endif
3179 	    || ((p = mch_getenv((char_u *)"COMSPEC")) != NULL && *p != NUL)
3180 # ifdef WIN3264
3181 	    || ((p = (char_u *)default_shell()) != NULL && *p != NUL)
3182 # endif
3183 #endif
3184 	    )
3185 	set_string_default("sh", p);
3186 
3187 #ifdef FEAT_WILDIGN
3188     /*
3189      * Set the default for 'backupskip' to include environment variables for
3190      * temp files.
3191      */
3192     {
3193 # ifdef UNIX
3194 	static char	*(names[4]) = {"", "TMPDIR", "TEMP", "TMP"};
3195 # else
3196 	static char	*(names[3]) = {"TMPDIR", "TEMP", "TMP"};
3197 # endif
3198 	int		len;
3199 	garray_T	ga;
3200 	int		mustfree;
3201 
3202 	ga_init2(&ga, 1, 100);
3203 	for (n = 0; n < (long)(sizeof(names) / sizeof(char *)); ++n)
3204 	{
3205 	    mustfree = FALSE;
3206 # ifdef UNIX
3207 	    if (*names[n] == NUL)
3208 		p = (char_u *)"/tmp";
3209 	    else
3210 # endif
3211 		p = vim_getenv((char_u *)names[n], &mustfree);
3212 	    if (p != NULL && *p != NUL)
3213 	    {
3214 		/* First time count the NUL, otherwise count the ','. */
3215 		len = (int)STRLEN(p) + 3;
3216 		if (ga_grow(&ga, len) == OK)
3217 		{
3218 		    if (ga.ga_len > 0)
3219 			STRCAT(ga.ga_data, ",");
3220 		    STRCAT(ga.ga_data, p);
3221 		    add_pathsep(ga.ga_data);
3222 		    STRCAT(ga.ga_data, "*");
3223 		    ga.ga_len += len;
3224 		}
3225 	    }
3226 	    if (mustfree)
3227 		vim_free(p);
3228 	}
3229 	if (ga.ga_data != NULL)
3230 	{
3231 	    set_string_default("bsk", ga.ga_data);
3232 	    vim_free(ga.ga_data);
3233 	}
3234     }
3235 #endif
3236 
3237     /*
3238      * 'maxmemtot' and 'maxmem' may have to be adjusted for available memory
3239      */
3240     opt_idx = findoption((char_u *)"maxmemtot");
3241     if (opt_idx >= 0)
3242     {
3243 #if !defined(HAVE_AVAIL_MEM) && !defined(HAVE_TOTAL_MEM)
3244 	if (options[opt_idx].def_val[VI_DEFAULT] == (char_u *)0L)
3245 #endif
3246 	{
3247 #ifdef HAVE_AVAIL_MEM
3248 	    /* Use amount of memory available at this moment. */
3249 	    n = (mch_avail_mem(FALSE) >> 1);
3250 #else
3251 # ifdef HAVE_TOTAL_MEM
3252 	    /* Use amount of memory available to Vim. */
3253 	    n = (mch_total_mem(FALSE) >> 1);
3254 # else
3255 	    n = (0x7fffffff >> 11);
3256 # endif
3257 #endif
3258 	    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
3259 	    opt_idx = findoption((char_u *)"maxmem");
3260 	    if (opt_idx >= 0)
3261 	    {
3262 #if !defined(HAVE_AVAIL_MEM) && !defined(HAVE_TOTAL_MEM)
3263 		if ((long)(long_i)options[opt_idx].def_val[VI_DEFAULT] > (long)n
3264 		  || (long)(long_i)options[opt_idx].def_val[VI_DEFAULT] == 0L)
3265 #endif
3266 		    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
3267 	    }
3268 	}
3269     }
3270 
3271 #ifdef FEAT_GUI_W32
3272     /* force 'shortname' for Win32s */
3273     if (gui_is_win32s())
3274     {
3275 	opt_idx = findoption((char_u *)"shortname");
3276 	if (opt_idx >= 0)
3277 	    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)TRUE;
3278     }
3279 #endif
3280 
3281 #ifdef FEAT_SEARCHPATH
3282     {
3283 	char_u	*cdpath;
3284 	char_u	*buf;
3285 	int	i;
3286 	int	j;
3287 	int	mustfree = FALSE;
3288 
3289 	/* Initialize the 'cdpath' option's default value. */
3290 	cdpath = vim_getenv((char_u *)"CDPATH", &mustfree);
3291 	if (cdpath != NULL)
3292 	{
3293 	    buf = alloc((unsigned)((STRLEN(cdpath) << 1) + 2));
3294 	    if (buf != NULL)
3295 	    {
3296 		buf[0] = ',';	    /* start with ",", current dir first */
3297 		j = 1;
3298 		for (i = 0; cdpath[i] != NUL; ++i)
3299 		{
3300 		    if (vim_ispathlistsep(cdpath[i]))
3301 			buf[j++] = ',';
3302 		    else
3303 		    {
3304 			if (cdpath[i] == ' ' || cdpath[i] == ',')
3305 			    buf[j++] = '\\';
3306 			buf[j++] = cdpath[i];
3307 		    }
3308 		}
3309 		buf[j] = NUL;
3310 		opt_idx = findoption((char_u *)"cdpath");
3311 		if (opt_idx >= 0)
3312 		{
3313 		    options[opt_idx].def_val[VI_DEFAULT] = buf;
3314 		    options[opt_idx].flags |= P_DEF_ALLOCED;
3315 		}
3316 		else
3317 		    vim_free(buf); /* cannot happen */
3318 	    }
3319 	    if (mustfree)
3320 		vim_free(cdpath);
3321 	}
3322     }
3323 #endif
3324 
3325 #if defined(FEAT_POSTSCRIPT) && (defined(MSWIN) || defined(VMS) || defined(EBCDIC) || defined(MAC) || defined(hpux))
3326     /* Set print encoding on platforms that don't default to latin1 */
3327     set_string_default("penc",
3328 # if defined(MSWIN)
3329 		       (char_u *)"cp1252"
3330 # else
3331 #  ifdef VMS
3332 		       (char_u *)"dec-mcs"
3333 #  else
3334 #   ifdef EBCDIC
3335 		       (char_u *)"ebcdic-uk"
3336 #   else
3337 #    ifdef MAC
3338 		       (char_u *)"mac-roman"
3339 #    else /* HPUX */
3340 		       (char_u *)"hp-roman8"
3341 #    endif
3342 #   endif
3343 #  endif
3344 # endif
3345 		       );
3346 #endif
3347 
3348 #ifdef FEAT_POSTSCRIPT
3349     /* 'printexpr' must be allocated to be able to evaluate it. */
3350     set_string_default("pexpr",
3351 # if defined(MSWIN)
3352 	    (char_u *)"system('copy' . ' ' . v:fname_in . (&printdevice == '' ? ' LPT1:' : (' \"' . &printdevice . '\"'))) . delete(v:fname_in)"
3353 # else
3354 #  ifdef VMS
3355 	    (char_u *)"system('print/delete' . (&printdevice == '' ? '' : ' /queue=' . &printdevice) . ' ' . v:fname_in)"
3356 
3357 #  else
3358 	    (char_u *)"system('lpr' . (&printdevice == '' ? '' : ' -P' . &printdevice) . ' ' . v:fname_in) . delete(v:fname_in) + v:shell_error"
3359 #  endif
3360 # endif
3361 	    );
3362 #endif
3363 
3364     /*
3365      * Set all the options (except the terminal options) to their default
3366      * value.  Also set the global value for local options.
3367      */
3368     set_options_default(0);
3369 
3370 #ifdef FEAT_GUI
3371     if (found_reverse_arg)
3372 	set_option_value((char_u *)"bg", 0L, (char_u *)"dark", 0);
3373 #endif
3374 
3375     curbuf->b_p_initialized = TRUE;
3376     curbuf->b_p_ar = -1;	/* no local 'autoread' value */
3377     curbuf->b_p_ul = NO_LOCAL_UNDOLEVEL;
3378     check_buf_options(curbuf);
3379     check_win_options(curwin);
3380     check_options();
3381 
3382     /* Must be before option_expand(), because that one needs vim_isIDc() */
3383     didset_options();
3384 
3385 #ifdef FEAT_SPELL
3386     /* Use the current chartab for the generic chartab. This is not in
3387      * didset_options() because it only depends on 'encoding'. */
3388     init_spell_chartab();
3389 #endif
3390 
3391     /*
3392      * Expand environment variables and things like "~" for the defaults.
3393      * If option_expand() returns non-NULL the variable is expanded.  This can
3394      * only happen for non-indirect options.
3395      * Also set the default to the expanded value, so ":set" does not list
3396      * them.
3397      * Don't set the P_ALLOCED flag, because we don't want to free the
3398      * default.
3399      */
3400     for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
3401     {
3402 	if ((options[opt_idx].flags & P_GETTEXT)
3403 					      && options[opt_idx].var != NULL)
3404 	    p = (char_u *)_(*(char **)options[opt_idx].var);
3405 	else
3406 	    p = option_expand(opt_idx, NULL);
3407 	if (p != NULL && (p = vim_strsave(p)) != NULL)
3408 	{
3409 	    *(char_u **)options[opt_idx].var = p;
3410 	    /* VIMEXP
3411 	     * Defaults for all expanded options are currently the same for Vi
3412 	     * and Vim.  When this changes, add some code here!  Also need to
3413 	     * split P_DEF_ALLOCED in two.
3414 	     */
3415 	    if (options[opt_idx].flags & P_DEF_ALLOCED)
3416 		vim_free(options[opt_idx].def_val[VI_DEFAULT]);
3417 	    options[opt_idx].def_val[VI_DEFAULT] = p;
3418 	    options[opt_idx].flags |= P_DEF_ALLOCED;
3419 	}
3420     }
3421 
3422     save_file_ff(curbuf);	/* Buffer is unchanged */
3423 
3424 #if defined(FEAT_ARABIC)
3425     /* Detect use of mlterm.
3426      * Mlterm is a terminal emulator akin to xterm that has some special
3427      * abilities (bidi namely).
3428      * NOTE: mlterm's author is being asked to 'set' a variable
3429      *       instead of an environment variable due to inheritance.
3430      */
3431     if (mch_getenv((char_u *)"MLTERM") != NULL)
3432 	set_option_value((char_u *)"tbidi", 1L, NULL, 0);
3433 #endif
3434 
3435     didset_options2();
3436 
3437 #ifdef FEAT_MBYTE
3438 # if defined(WIN3264) && defined(FEAT_GETTEXT)
3439     /*
3440      * If $LANG isn't set, try to get a good value for it.  This makes the
3441      * right language be used automatically.  Don't do this for English.
3442      */
3443     if (mch_getenv((char_u *)"LANG") == NULL)
3444     {
3445 	char	buf[20];
3446 
3447 	/* Could use LOCALE_SISO639LANGNAME, but it's not in Win95.
3448 	 * LOCALE_SABBREVLANGNAME gives us three letters, like "enu", we use
3449 	 * only the first two. */
3450 	n = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_SABBREVLANGNAME,
3451 							     (LPTSTR)buf, 20);
3452 	if (n >= 2 && STRNICMP(buf, "en", 2) != 0)
3453 	{
3454 	    /* There are a few exceptions (probably more) */
3455 	    if (STRNICMP(buf, "cht", 3) == 0 || STRNICMP(buf, "zht", 3) == 0)
3456 		STRCPY(buf, "zh_TW");
3457 	    else if (STRNICMP(buf, "chs", 3) == 0
3458 					      || STRNICMP(buf, "zhc", 3) == 0)
3459 		STRCPY(buf, "zh_CN");
3460 	    else if (STRNICMP(buf, "jp", 2) == 0)
3461 		STRCPY(buf, "ja");
3462 	    else
3463 		buf[2] = NUL;		/* truncate to two-letter code */
3464 	    vim_setenv((char_u *)"LANG", (char_u *)buf);
3465 	}
3466     }
3467 # else
3468 #  ifdef MACOS_CONVERT
3469     /* Moved to os_mac_conv.c to avoid dependency problems. */
3470     mac_lang_init();
3471 #  endif
3472 # endif
3473 
3474     /* enc_locale() will try to find the encoding of the current locale. */
3475     p = enc_locale();
3476     if (p != NULL)
3477     {
3478 	char_u *save_enc;
3479 
3480 	/* Try setting 'encoding' and check if the value is valid.
3481 	 * If not, go back to the default "latin1". */
3482 	save_enc = p_enc;
3483 	p_enc = p;
3484 	if (STRCMP(p_enc, "gb18030") == 0)
3485 	{
3486 	    /* We don't support "gb18030", but "cp936" is a good substitute
3487 	     * for practical purposes, thus use that.  It's not an alias to
3488 	     * still support conversion between gb18030 and utf-8. */
3489 	    p_enc = vim_strsave((char_u *)"cp936");
3490 	    vim_free(p);
3491 	}
3492 	if (mb_init() == NULL)
3493 	{
3494 	    opt_idx = findoption((char_u *)"encoding");
3495 	    if (opt_idx >= 0)
3496 	    {
3497 		options[opt_idx].def_val[VI_DEFAULT] = p_enc;
3498 		options[opt_idx].flags |= P_DEF_ALLOCED;
3499 	    }
3500 
3501 #if defined(MSWIN) || defined(MACOS) || defined(VMS)
3502 	    if (STRCMP(p_enc, "latin1") == 0
3503 # ifdef FEAT_MBYTE
3504 		    || enc_utf8
3505 # endif
3506 		    )
3507 	    {
3508 		/* Adjust the default for 'isprint' and 'iskeyword' to match
3509 		 * latin1.  Also set the defaults for when 'nocompatible' is
3510 		 * set. */
3511 		set_string_option_direct((char_u *)"isp", -1,
3512 					      ISP_LATIN1, OPT_FREE, SID_NONE);
3513 		set_string_option_direct((char_u *)"isk", -1,
3514 					      ISK_LATIN1, OPT_FREE, SID_NONE);
3515 		opt_idx = findoption((char_u *)"isp");
3516 		if (opt_idx >= 0)
3517 		    options[opt_idx].def_val[VIM_DEFAULT] = ISP_LATIN1;
3518 		opt_idx = findoption((char_u *)"isk");
3519 		if (opt_idx >= 0)
3520 		    options[opt_idx].def_val[VIM_DEFAULT] = ISK_LATIN1;
3521 		(void)init_chartab();
3522 	    }
3523 #endif
3524 
3525 # if defined(WIN3264) && !defined(FEAT_GUI)
3526 	    /* Win32 console: When GetACP() returns a different value from
3527 	     * GetConsoleCP() set 'termencoding'. */
3528 	    if (GetACP() != GetConsoleCP())
3529 	    {
3530 		char	buf[50];
3531 
3532 		sprintf(buf, "cp%ld", (long)GetConsoleCP());
3533 		p_tenc = vim_strsave((char_u *)buf);
3534 		if (p_tenc != NULL)
3535 		{
3536 		    opt_idx = findoption((char_u *)"termencoding");
3537 		    if (opt_idx >= 0)
3538 		    {
3539 			options[opt_idx].def_val[VI_DEFAULT] = p_tenc;
3540 			options[opt_idx].flags |= P_DEF_ALLOCED;
3541 		    }
3542 		    convert_setup(&input_conv, p_tenc, p_enc);
3543 		    convert_setup(&output_conv, p_enc, p_tenc);
3544 		}
3545 		else
3546 		    p_tenc = empty_option;
3547 	    }
3548 # endif
3549 # if defined(WIN3264) && defined(FEAT_MBYTE)
3550 	    /* $HOME may have characters in active code page. */
3551 	    init_homedir();
3552 # endif
3553 	}
3554 	else
3555 	{
3556 	    vim_free(p_enc);
3557 	    p_enc = save_enc;
3558 	}
3559     }
3560 #endif
3561 
3562 #ifdef FEAT_MULTI_LANG
3563     /* Set the default for 'helplang'. */
3564     set_helplang_default(get_mess_lang());
3565 #endif
3566 }
3567 
3568 /*
3569  * Set an option to its default value.
3570  * This does not take care of side effects!
3571  */
3572     static void
3573 set_option_default(
3574     int		opt_idx,
3575     int		opt_flags,	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
3576     int		compatible)	/* use Vi default value */
3577 {
3578     char_u	*varp;		/* pointer to variable for current option */
3579     int		dvi;		/* index in def_val[] */
3580     long_u	flags;
3581     long_u	*flagsp;
3582     int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
3583 
3584     varp = get_varp_scope(&(options[opt_idx]), both ? OPT_LOCAL : opt_flags);
3585     flags = options[opt_idx].flags;
3586     if (varp != NULL)	    /* skip hidden option, nothing to do for it */
3587     {
3588 	dvi = ((flags & P_VI_DEF) || compatible) ? VI_DEFAULT : VIM_DEFAULT;
3589 	if (flags & P_STRING)
3590 	{
3591 	    /* Use set_string_option_direct() for local options to handle
3592 	     * freeing and allocating the value. */
3593 	    if (options[opt_idx].indir != PV_NONE)
3594 		set_string_option_direct(NULL, opt_idx,
3595 				 options[opt_idx].def_val[dvi], opt_flags, 0);
3596 	    else
3597 	    {
3598 		if ((opt_flags & OPT_FREE) && (flags & P_ALLOCED))
3599 		    free_string_option(*(char_u **)(varp));
3600 		*(char_u **)varp = options[opt_idx].def_val[dvi];
3601 		options[opt_idx].flags &= ~P_ALLOCED;
3602 	    }
3603 	}
3604 	else if (flags & P_NUM)
3605 	{
3606 	    if (options[opt_idx].indir == PV_SCROLL)
3607 		win_comp_scroll(curwin);
3608 	    else
3609 	    {
3610 		*(long *)varp = (long)(long_i)options[opt_idx].def_val[dvi];
3611 		/* May also set global value for local option. */
3612 		if (both)
3613 		    *(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
3614 								*(long *)varp;
3615 	    }
3616 	}
3617 	else	/* P_BOOL */
3618 	{
3619 	    /* the cast to long is required for Manx C, long_i is needed for
3620 	     * MSVC */
3621 	    *(int *)varp = (int)(long)(long_i)options[opt_idx].def_val[dvi];
3622 #ifdef UNIX
3623 	    /* 'modeline' defaults to off for root */
3624 	    if (options[opt_idx].indir == PV_ML && getuid() == ROOT_UID)
3625 		*(int *)varp = FALSE;
3626 #endif
3627 	    /* May also set global value for local option. */
3628 	    if (both)
3629 		*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
3630 								*(int *)varp;
3631 	}
3632 
3633 	/* The default value is not insecure. */
3634 	flagsp = insecure_flag(opt_idx, opt_flags);
3635 	*flagsp = *flagsp & ~P_INSECURE;
3636     }
3637 
3638 #ifdef FEAT_EVAL
3639     set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
3640 #endif
3641 }
3642 
3643 /*
3644  * Set all options (except terminal options) to their default value.
3645  * When "opt_flags" is non-zero skip 'encoding'.
3646  */
3647     static void
3648 set_options_default(
3649     int		opt_flags)	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
3650 {
3651     int		i;
3652 #ifdef FEAT_WINDOWS
3653     win_T	*wp;
3654     tabpage_T	*tp;
3655 #endif
3656 
3657     for (i = 0; !istermoption(&options[i]); i++)
3658 	if (!(options[i].flags & P_NODEFAULT)
3659 #if defined(FEAT_MBYTE) || defined(FEAT_CRYPT)
3660 		&& (opt_flags == 0
3661 		    || (TRUE
3662 # if defined(FEAT_MBYTE)
3663 			&& options[i].var != (char_u *)&p_enc
3664 # endif
3665 # if defined(FEAT_CRYPT)
3666 			&& options[i].var != (char_u *)&p_cm
3667 			&& options[i].var != (char_u *)&p_key
3668 # endif
3669 			))
3670 #endif
3671 			)
3672 	    set_option_default(i, opt_flags, p_cp);
3673 
3674 #ifdef FEAT_WINDOWS
3675     /* The 'scroll' option must be computed for all windows. */
3676     FOR_ALL_TAB_WINDOWS(tp, wp)
3677 	win_comp_scroll(wp);
3678 #else
3679 	win_comp_scroll(curwin);
3680 #endif
3681 #ifdef FEAT_CINDENT
3682     parse_cino(curbuf);
3683 #endif
3684 }
3685 
3686 /*
3687  * Set the Vi-default value of a string option.
3688  * Used for 'sh', 'backupskip' and 'term'.
3689  */
3690     void
3691 set_string_default(char *name, char_u *val)
3692 {
3693     char_u	*p;
3694     int		opt_idx;
3695 
3696     p = vim_strsave(val);
3697     if (p != NULL)		/* we don't want a NULL */
3698     {
3699 	opt_idx = findoption((char_u *)name);
3700 	if (opt_idx >= 0)
3701 	{
3702 	    if (options[opt_idx].flags & P_DEF_ALLOCED)
3703 		vim_free(options[opt_idx].def_val[VI_DEFAULT]);
3704 	    options[opt_idx].def_val[VI_DEFAULT] = p;
3705 	    options[opt_idx].flags |= P_DEF_ALLOCED;
3706 	}
3707     }
3708 }
3709 
3710 /*
3711  * Set the Vi-default value of a number option.
3712  * Used for 'lines' and 'columns'.
3713  */
3714     void
3715 set_number_default(char *name, long val)
3716 {
3717     int		opt_idx;
3718 
3719     opt_idx = findoption((char_u *)name);
3720     if (opt_idx >= 0)
3721 	options[opt_idx].def_val[VI_DEFAULT] = (char_u *)(long_i)val;
3722 }
3723 
3724 #if defined(EXITFREE) || defined(PROTO)
3725 /*
3726  * Free all options.
3727  */
3728     void
3729 free_all_options(void)
3730 {
3731     int		i;
3732 
3733     for (i = 0; !istermoption(&options[i]); i++)
3734     {
3735 	if (options[i].indir == PV_NONE)
3736 	{
3737 	    /* global option: free value and default value. */
3738 	    if (options[i].flags & P_ALLOCED && options[i].var != NULL)
3739 		free_string_option(*(char_u **)options[i].var);
3740 	    if (options[i].flags & P_DEF_ALLOCED)
3741 		free_string_option(options[i].def_val[VI_DEFAULT]);
3742 	}
3743 	else if (options[i].var != VAR_WIN
3744 		&& (options[i].flags & P_STRING))
3745 	    /* buffer-local option: free global value */
3746 	    free_string_option(*(char_u **)options[i].var);
3747     }
3748 }
3749 #endif
3750 
3751 
3752 /*
3753  * Initialize the options, part two: After getting Rows and Columns and
3754  * setting 'term'.
3755  */
3756     void
3757 set_init_2(void)
3758 {
3759     int		idx;
3760 
3761     /*
3762      * 'scroll' defaults to half the window height. Note that this default is
3763      * wrong when the window height changes.
3764      */
3765     set_number_default("scroll", (long)((long_u)Rows >> 1));
3766     idx = findoption((char_u *)"scroll");
3767     if (idx >= 0 && !(options[idx].flags & P_WAS_SET))
3768 	set_option_default(idx, OPT_LOCAL, p_cp);
3769     comp_col();
3770 
3771     /*
3772      * 'window' is only for backwards compatibility with Vi.
3773      * Default is Rows - 1.
3774      */
3775     if (!option_was_set((char_u *)"window"))
3776 	p_window = Rows - 1;
3777     set_number_default("window", Rows - 1);
3778 
3779     /* For DOS console the default is always black. */
3780 #if !((defined(WIN3264)) && !defined(FEAT_GUI))
3781     /*
3782      * If 'background' wasn't set by the user, try guessing the value,
3783      * depending on the terminal name.  Only need to check for terminals
3784      * with a dark background, that can handle color.
3785      */
3786     idx = findoption((char_u *)"bg");
3787     if (idx >= 0 && !(options[idx].flags & P_WAS_SET)
3788 						 && *term_bg_default() == 'd')
3789     {
3790 	set_string_option_direct(NULL, idx, (char_u *)"dark", OPT_FREE, 0);
3791 	/* don't mark it as set, when starting the GUI it may be
3792 	 * changed again */
3793 	options[idx].flags &= ~P_WAS_SET;
3794     }
3795 #endif
3796 
3797 #ifdef CURSOR_SHAPE
3798     parse_shape_opt(SHAPE_CURSOR); /* set cursor shapes from 'guicursor' */
3799 #endif
3800 #ifdef FEAT_MOUSESHAPE
3801     parse_shape_opt(SHAPE_MOUSE);  /* set mouse shapes from 'mouseshape' */
3802 #endif
3803 #ifdef FEAT_PRINTER
3804     (void)parse_printoptions();	    /* parse 'printoptions' default value */
3805 #endif
3806 }
3807 
3808 /*
3809  * Return "dark" or "light" depending on the kind of terminal.
3810  * This is just guessing!  Recognized are:
3811  * "linux"	    Linux console
3812  * "screen.linux"   Linux console with screen
3813  * "cygwin"	    Cygwin shell
3814  * "putty"	    Putty program
3815  * We also check the COLORFGBG environment variable, which is set by
3816  * rxvt and derivatives. This variable contains either two or three
3817  * values separated by semicolons; we want the last value in either
3818  * case. If this value is 0-6 or 8, our background is dark.
3819  */
3820     static char_u *
3821 term_bg_default(void)
3822 {
3823 #if defined(WIN3264)
3824     /* DOS console nearly always black */
3825     return (char_u *)"dark";
3826 #else
3827     char_u	*p;
3828 
3829     if (STRCMP(T_NAME, "linux") == 0
3830 	    || STRCMP(T_NAME, "screen.linux") == 0
3831 	    || STRCMP(T_NAME, "cygwin") == 0
3832 	    || STRCMP(T_NAME, "putty") == 0
3833 	    || ((p = mch_getenv((char_u *)"COLORFGBG")) != NULL
3834 		&& (p = vim_strrchr(p, ';')) != NULL
3835 		&& ((p[1] >= '0' && p[1] <= '6') || p[1] == '8')
3836 		&& p[2] == NUL))
3837 	return (char_u *)"dark";
3838     return (char_u *)"light";
3839 #endif
3840 }
3841 
3842 /*
3843  * Initialize the options, part three: After reading the .vimrc
3844  */
3845     void
3846 set_init_3(void)
3847 {
3848 #if defined(UNIX) || defined(WIN3264)
3849 /*
3850  * Set 'shellpipe' and 'shellredir', depending on the 'shell' option.
3851  * This is done after other initializations, where 'shell' might have been
3852  * set, but only if they have not been set before.
3853  */
3854     char_u  *p;
3855     int	    idx_srr;
3856     int	    do_srr;
3857 # ifdef FEAT_QUICKFIX
3858     int	    idx_sp;
3859     int	    do_sp;
3860 # endif
3861 
3862     idx_srr = findoption((char_u *)"srr");
3863     if (idx_srr < 0)
3864 	do_srr = FALSE;
3865     else
3866 	do_srr = !(options[idx_srr].flags & P_WAS_SET);
3867 # ifdef FEAT_QUICKFIX
3868     idx_sp = findoption((char_u *)"sp");
3869     if (idx_sp < 0)
3870 	do_sp = FALSE;
3871     else
3872 	do_sp = !(options[idx_sp].flags & P_WAS_SET);
3873 # endif
3874     p = get_isolated_shell_name();
3875     if (p != NULL)
3876     {
3877 	/*
3878 	 * Default for p_sp is "| tee", for p_srr is ">".
3879 	 * For known shells it is changed here to include stderr.
3880 	 */
3881 	if (	   fnamecmp(p, "csh") == 0
3882 		|| fnamecmp(p, "tcsh") == 0
3883 # if defined(WIN3264)	/* also check with .exe extension */
3884 		|| fnamecmp(p, "csh.exe") == 0
3885 		|| fnamecmp(p, "tcsh.exe") == 0
3886 # endif
3887 	   )
3888 	{
3889 # if defined(FEAT_QUICKFIX)
3890 	    if (do_sp)
3891 	    {
3892 #  ifdef WIN3264
3893 		p_sp = (char_u *)">&";
3894 #  else
3895 		p_sp = (char_u *)"|& tee";
3896 #  endif
3897 		options[idx_sp].def_val[VI_DEFAULT] = p_sp;
3898 	    }
3899 # endif
3900 	    if (do_srr)
3901 	    {
3902 		p_srr = (char_u *)">&";
3903 		options[idx_srr].def_val[VI_DEFAULT] = p_srr;
3904 	    }
3905 	}
3906 	else
3907 	    /* Always use bourne shell style redirection if we reach this */
3908 	    if (       fnamecmp(p, "sh") == 0
3909 		    || fnamecmp(p, "ksh") == 0
3910 		    || fnamecmp(p, "mksh") == 0
3911 		    || fnamecmp(p, "pdksh") == 0
3912 		    || fnamecmp(p, "zsh") == 0
3913 		    || fnamecmp(p, "zsh-beta") == 0
3914 		    || fnamecmp(p, "bash") == 0
3915 		    || fnamecmp(p, "fish") == 0
3916 # ifdef WIN3264
3917 		    || fnamecmp(p, "cmd") == 0
3918 		    || fnamecmp(p, "sh.exe") == 0
3919 		    || fnamecmp(p, "ksh.exe") == 0
3920 		    || fnamecmp(p, "mksh.exe") == 0
3921 		    || fnamecmp(p, "pdksh.exe") == 0
3922 		    || fnamecmp(p, "zsh.exe") == 0
3923 		    || fnamecmp(p, "zsh-beta.exe") == 0
3924 		    || fnamecmp(p, "bash.exe") == 0
3925 		    || fnamecmp(p, "cmd.exe") == 0
3926 # endif
3927 		    )
3928 	    {
3929 # if defined(FEAT_QUICKFIX)
3930 		if (do_sp)
3931 		{
3932 #  ifdef WIN3264
3933 		    p_sp = (char_u *)">%s 2>&1";
3934 #  else
3935 		    p_sp = (char_u *)"2>&1| tee";
3936 #  endif
3937 		    options[idx_sp].def_val[VI_DEFAULT] = p_sp;
3938 		}
3939 # endif
3940 		if (do_srr)
3941 		{
3942 		    p_srr = (char_u *)">%s 2>&1";
3943 		    options[idx_srr].def_val[VI_DEFAULT] = p_srr;
3944 		}
3945 	    }
3946 	vim_free(p);
3947     }
3948 #endif
3949 
3950 #if defined(WIN3264)
3951     /*
3952      * Set 'shellcmdflag', 'shellxquote', and 'shellquote' depending on the
3953      * 'shell' option.
3954      * This is done after other initializations, where 'shell' might have been
3955      * set, but only if they have not been set before.  Default for p_shcf is
3956      * "/c", for p_shq is "".  For "sh" like  shells it is changed here to
3957      * "-c" and "\"".  And for Win32 we need to set p_sxq instead.
3958      */
3959     if (strstr((char *)gettail(p_sh), "sh") != NULL)
3960     {
3961 	int	idx3;
3962 
3963 	idx3 = findoption((char_u *)"shcf");
3964 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
3965 	{
3966 	    p_shcf = (char_u *)"-c";
3967 	    options[idx3].def_val[VI_DEFAULT] = p_shcf;
3968 	}
3969 
3970 # ifdef WIN3264
3971 	/* Somehow Win32 requires the quotes around the redirection too */
3972 	idx3 = findoption((char_u *)"sxq");
3973 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
3974 	{
3975 	    p_sxq = (char_u *)"\"";
3976 	    options[idx3].def_val[VI_DEFAULT] = p_sxq;
3977 	}
3978 # else
3979 	idx3 = findoption((char_u *)"shq");
3980 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
3981 	{
3982 	    p_shq = (char_u *)"\"";
3983 	    options[idx3].def_val[VI_DEFAULT] = p_shq;
3984 	}
3985 # endif
3986     }
3987     else if (strstr((char *)gettail(p_sh), "cmd.exe") != NULL)
3988     {
3989 	int	idx3;
3990 
3991 	/*
3992 	 * cmd.exe on Windows will strip the first and last double quote given
3993 	 * on the command line, e.g. most of the time things like:
3994 	 *   cmd /c "my path/to/echo" "my args to echo"
3995 	 * become:
3996 	 *   my path/to/echo" "my args to echo
3997 	 * when executed.
3998 	 *
3999 	 * To avoid this, set shellxquote to surround the command in
4000 	 * parenthesis.  This appears to make most commands work, without
4001 	 * breaking commands that worked previously, such as
4002 	 * '"path with spaces/cmd" "a&b"'.
4003 	 */
4004 	idx3 = findoption((char_u *)"sxq");
4005 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
4006 	{
4007 	    p_sxq = (char_u *)"(";
4008 	    options[idx3].def_val[VI_DEFAULT] = p_sxq;
4009 	}
4010 
4011 	idx3 = findoption((char_u *)"shcf");
4012 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
4013 	{
4014 	    p_shcf = (char_u *)"/c";
4015 	    options[idx3].def_val[VI_DEFAULT] = p_shcf;
4016 	}
4017     }
4018 #endif
4019 
4020     if (bufempty())
4021     {
4022 	int idx_ffs = findoption((char_u *)"ffs");
4023 
4024 	/* Apply the first entry of 'fileformats' to the initial buffer. */
4025 	if (idx_ffs >= 0 && (options[idx_ffs].flags & P_WAS_SET))
4026 	    set_fileformat(default_fileformat(), OPT_LOCAL);
4027     }
4028 
4029 #ifdef FEAT_TITLE
4030     set_title_defaults();
4031 #endif
4032 }
4033 
4034 #if defined(FEAT_MULTI_LANG) || defined(PROTO)
4035 /*
4036  * When 'helplang' is still at its default value, set it to "lang".
4037  * Only the first two characters of "lang" are used.
4038  */
4039     void
4040 set_helplang_default(char_u *lang)
4041 {
4042     int		idx;
4043 
4044     if (lang == NULL || STRLEN(lang) < 2)	/* safety check */
4045 	return;
4046     idx = findoption((char_u *)"hlg");
4047     if (idx >= 0 && !(options[idx].flags & P_WAS_SET))
4048     {
4049 	if (options[idx].flags & P_ALLOCED)
4050 	    free_string_option(p_hlg);
4051 	p_hlg = vim_strsave(lang);
4052 	if (p_hlg == NULL)
4053 	    p_hlg = empty_option;
4054 	else
4055 	{
4056 	    /* zh_CN becomes "cn", zh_TW becomes "tw". */
4057 	    if (STRNICMP(p_hlg, "zh_", 3) == 0 && STRLEN(p_hlg) >= 5)
4058 	    {
4059 		p_hlg[0] = TOLOWER_ASC(p_hlg[3]);
4060 		p_hlg[1] = TOLOWER_ASC(p_hlg[4]);
4061 	    }
4062 	    p_hlg[2] = NUL;
4063 	}
4064 	options[idx].flags |= P_ALLOCED;
4065     }
4066 }
4067 #endif
4068 
4069 #ifdef FEAT_GUI
4070 static char_u *gui_bg_default(void);
4071 
4072     static char_u *
4073 gui_bg_default(void)
4074 {
4075     if (gui_get_lightness(gui.back_pixel) < 127)
4076 	return (char_u *)"dark";
4077     return (char_u *)"light";
4078 }
4079 
4080 /*
4081  * Option initializations that can only be done after opening the GUI window.
4082  */
4083     void
4084 init_gui_options(void)
4085 {
4086     /* Set the 'background' option according to the lightness of the
4087      * background color, unless the user has set it already. */
4088     if (!option_was_set((char_u *)"bg") && STRCMP(p_bg, gui_bg_default()) != 0)
4089     {
4090 	set_option_value((char_u *)"bg", 0L, gui_bg_default(), 0);
4091 	highlight_changed();
4092     }
4093 }
4094 #endif
4095 
4096 #ifdef FEAT_TITLE
4097 /*
4098  * 'title' and 'icon' only default to true if they have not been set or reset
4099  * in .vimrc and we can read the old value.
4100  * When 'title' and 'icon' have been reset in .vimrc, we won't even check if
4101  * they can be reset.  This reduces startup time when using X on a remote
4102  * machine.
4103  */
4104     void
4105 set_title_defaults(void)
4106 {
4107     int	    idx1;
4108     long    val;
4109 
4110     /*
4111      * If GUI is (going to be) used, we can always set the window title and
4112      * icon name.  Saves a bit of time, because the X11 display server does
4113      * not need to be contacted.
4114      */
4115     idx1 = findoption((char_u *)"title");
4116     if (idx1 >= 0 && !(options[idx1].flags & P_WAS_SET))
4117     {
4118 #ifdef FEAT_GUI
4119 	if (gui.starting || gui.in_use)
4120 	    val = TRUE;
4121 	else
4122 #endif
4123 	    val = mch_can_restore_title();
4124 	options[idx1].def_val[VI_DEFAULT] = (char_u *)(long_i)val;
4125 	p_title = val;
4126     }
4127     idx1 = findoption((char_u *)"icon");
4128     if (idx1 >= 0 && !(options[idx1].flags & P_WAS_SET))
4129     {
4130 #ifdef FEAT_GUI
4131 	if (gui.starting || gui.in_use)
4132 	    val = TRUE;
4133 	else
4134 #endif
4135 	    val = mch_can_restore_icon();
4136 	options[idx1].def_val[VI_DEFAULT] = (char_u *)(long_i)val;
4137 	p_icon = val;
4138     }
4139 }
4140 #endif
4141 
4142 /*
4143  * Parse 'arg' for option settings.
4144  *
4145  * 'arg' may be IObuff, but only when no errors can be present and option
4146  * does not need to be expanded with option_expand().
4147  * "opt_flags":
4148  * 0 for ":set"
4149  * OPT_GLOBAL   for ":setglobal"
4150  * OPT_LOCAL    for ":setlocal" and a modeline
4151  * OPT_MODELINE for a modeline
4152  * OPT_WINONLY  to only set window-local options
4153  * OPT_NOWIN	to skip setting window-local options
4154  *
4155  * returns FAIL if an error is detected, OK otherwise
4156  */
4157     int
4158 do_set(
4159     char_u	*arg,		/* option string (may be written to!) */
4160     int		opt_flags)
4161 {
4162     int		opt_idx;
4163     char_u	*errmsg;
4164     char_u	errbuf[80];
4165     char_u	*startarg;
4166     int		prefix;	/* 1: nothing, 0: "no", 2: "inv" in front of name */
4167     int		nextchar;	    /* next non-white char after option name */
4168     int		afterchar;	    /* character just after option name */
4169     int		len;
4170     int		i;
4171     long	value;
4172     int		key;
4173     long_u	flags;		    /* flags for current option */
4174     char_u	*varp = NULL;	    /* pointer to variable for current option */
4175     int		did_show = FALSE;   /* already showed one value */
4176     int		adding;		    /* "opt+=arg" */
4177     int		prepending;	    /* "opt^=arg" */
4178     int		removing;	    /* "opt-=arg" */
4179     int		cp_val = 0;
4180     char_u	key_name[2];
4181 
4182     if (*arg == NUL)
4183     {
4184 	showoptions(0, opt_flags);
4185 	did_show = TRUE;
4186 	goto theend;
4187     }
4188 
4189     while (*arg != NUL)		/* loop to process all options */
4190     {
4191 	errmsg = NULL;
4192 	startarg = arg;		/* remember for error message */
4193 
4194 	if (STRNCMP(arg, "all", 3) == 0 && !isalpha(arg[3])
4195 						&& !(opt_flags & OPT_MODELINE))
4196 	{
4197 	    /*
4198 	     * ":set all"  show all options.
4199 	     * ":set all&" set all options to their default value.
4200 	     */
4201 	    arg += 3;
4202 	    if (*arg == '&')
4203 	    {
4204 		++arg;
4205 		/* Only for :set command set global value of local options. */
4206 		set_options_default(OPT_FREE | opt_flags);
4207 		didset_options();
4208 		didset_options2();
4209 		redraw_all_later(CLEAR);
4210 	    }
4211 	    else
4212 	    {
4213 		showoptions(1, opt_flags);
4214 		did_show = TRUE;
4215 	    }
4216 	}
4217 	else if (STRNCMP(arg, "termcap", 7) == 0 && !(opt_flags & OPT_MODELINE))
4218 	{
4219 	    showoptions(2, opt_flags);
4220 	    show_termcodes();
4221 	    did_show = TRUE;
4222 	    arg += 7;
4223 	}
4224 	else
4225 	{
4226 	    prefix = 1;
4227 	    if (STRNCMP(arg, "no", 2) == 0 && STRNCMP(arg, "novice", 6) != 0)
4228 	    {
4229 		prefix = 0;
4230 		arg += 2;
4231 	    }
4232 	    else if (STRNCMP(arg, "inv", 3) == 0)
4233 	    {
4234 		prefix = 2;
4235 		arg += 3;
4236 	    }
4237 
4238 	    /* find end of name */
4239 	    key = 0;
4240 	    if (*arg == '<')
4241 	    {
4242 		nextchar = 0;
4243 		opt_idx = -1;
4244 		/* look out for <t_>;> */
4245 		if (arg[1] == 't' && arg[2] == '_' && arg[3] && arg[4])
4246 		    len = 5;
4247 		else
4248 		{
4249 		    len = 1;
4250 		    while (arg[len] != NUL && arg[len] != '>')
4251 			++len;
4252 		}
4253 		if (arg[len] != '>')
4254 		{
4255 		    errmsg = e_invarg;
4256 		    goto skip;
4257 		}
4258 		arg[len] = NUL;			    /* put NUL after name */
4259 		if (arg[1] == 't' && arg[2] == '_') /* could be term code */
4260 		    opt_idx = findoption(arg + 1);
4261 		arg[len++] = '>';		    /* restore '>' */
4262 		if (opt_idx == -1)
4263 		    key = find_key_option(arg + 1);
4264 	    }
4265 	    else
4266 	    {
4267 		len = 0;
4268 		/*
4269 		 * The two characters after "t_" may not be alphanumeric.
4270 		 */
4271 		if (arg[0] == 't' && arg[1] == '_' && arg[2] && arg[3])
4272 		    len = 4;
4273 		else
4274 		    while (ASCII_ISALNUM(arg[len]) || arg[len] == '_')
4275 			++len;
4276 		nextchar = arg[len];
4277 		arg[len] = NUL;			    /* put NUL after name */
4278 		opt_idx = findoption(arg);
4279 		arg[len] = nextchar;		    /* restore nextchar */
4280 		if (opt_idx == -1)
4281 		    key = find_key_option(arg);
4282 	    }
4283 
4284 	    /* remember character after option name */
4285 	    afterchar = arg[len];
4286 
4287 	    /* skip white space, allow ":set ai  ?" */
4288 	    while (vim_iswhite(arg[len]))
4289 		++len;
4290 
4291 	    adding = FALSE;
4292 	    prepending = FALSE;
4293 	    removing = FALSE;
4294 	    if (arg[len] != NUL && arg[len + 1] == '=')
4295 	    {
4296 		if (arg[len] == '+')
4297 		{
4298 		    adding = TRUE;		/* "+=" */
4299 		    ++len;
4300 		}
4301 		else if (arg[len] == '^')
4302 		{
4303 		    prepending = TRUE;		/* "^=" */
4304 		    ++len;
4305 		}
4306 		else if (arg[len] == '-')
4307 		{
4308 		    removing = TRUE;		/* "-=" */
4309 		    ++len;
4310 		}
4311 	    }
4312 	    nextchar = arg[len];
4313 
4314 	    if (opt_idx == -1 && key == 0)	/* found a mismatch: skip */
4315 	    {
4316 		errmsg = (char_u *)N_("E518: Unknown option");
4317 		goto skip;
4318 	    }
4319 
4320 	    if (opt_idx >= 0)
4321 	    {
4322 		if (options[opt_idx].var == NULL)   /* hidden option: skip */
4323 		{
4324 		    /* Only give an error message when requesting the value of
4325 		     * a hidden option, ignore setting it. */
4326 		    if (vim_strchr((char_u *)"=:!&<", nextchar) == NULL
4327 			    && (!(options[opt_idx].flags & P_BOOL)
4328 				|| nextchar == '?'))
4329 			errmsg = (char_u *)N_("E519: Option not supported");
4330 		    goto skip;
4331 		}
4332 
4333 		flags = options[opt_idx].flags;
4334 		varp = get_varp_scope(&(options[opt_idx]), opt_flags);
4335 	    }
4336 	    else
4337 	    {
4338 		flags = P_STRING;
4339 		if (key < 0)
4340 		{
4341 		    key_name[0] = KEY2TERMCAP0(key);
4342 		    key_name[1] = KEY2TERMCAP1(key);
4343 		}
4344 		else
4345 		{
4346 		    key_name[0] = KS_KEY;
4347 		    key_name[1] = (key & 0xff);
4348 		}
4349 	    }
4350 
4351 	    /* Skip all options that are not window-local (used when showing
4352 	     * an already loaded buffer in a window). */
4353 	    if ((opt_flags & OPT_WINONLY)
4354 			  && (opt_idx < 0 || options[opt_idx].var != VAR_WIN))
4355 		goto skip;
4356 
4357 	    /* Skip all options that are window-local (used for :vimgrep). */
4358 	    if ((opt_flags & OPT_NOWIN) && opt_idx >= 0
4359 					   && options[opt_idx].var == VAR_WIN)
4360 		goto skip;
4361 
4362 	    /* Disallow changing some options from modelines. */
4363 	    if (opt_flags & OPT_MODELINE)
4364 	    {
4365 		if (flags & (P_SECURE | P_NO_ML))
4366 		{
4367 		    errmsg = (char_u *)_("E520: Not allowed in a modeline");
4368 		    goto skip;
4369 		}
4370 #ifdef FEAT_DIFF
4371 		/* In diff mode some options are overruled.  This avoids that
4372 		 * 'foldmethod' becomes "marker" instead of "diff" and that
4373 		 * "wrap" gets set. */
4374 		if (curwin->w_p_diff
4375 			&& opt_idx >= 0  /* shut up coverity warning */
4376 			&& (options[opt_idx].indir == PV_FDM
4377 			    || options[opt_idx].indir == PV_WRAP))
4378 		    goto skip;
4379 #endif
4380 	    }
4381 
4382 #ifdef HAVE_SANDBOX
4383 	    /* Disallow changing some options in the sandbox */
4384 	    if (sandbox != 0 && (flags & P_SECURE))
4385 	    {
4386 		errmsg = (char_u *)_(e_sandbox);
4387 		goto skip;
4388 	    }
4389 #endif
4390 
4391 	    if (vim_strchr((char_u *)"?=:!&<", nextchar) != NULL)
4392 	    {
4393 		arg += len;
4394 		cp_val = p_cp;
4395 		if (nextchar == '&' && arg[1] == 'v' && arg[2] == 'i')
4396 		{
4397 		    if (arg[3] == 'm')	/* "opt&vim": set to Vim default */
4398 		    {
4399 			cp_val = FALSE;
4400 			arg += 3;
4401 		    }
4402 		    else		/* "opt&vi": set to Vi default */
4403 		    {
4404 			cp_val = TRUE;
4405 			arg += 2;
4406 		    }
4407 		}
4408 		if (vim_strchr((char_u *)"?!&<", nextchar) != NULL
4409 			&& arg[1] != NUL && !vim_iswhite(arg[1]))
4410 		{
4411 		    errmsg = e_trailing;
4412 		    goto skip;
4413 		}
4414 	    }
4415 
4416 	    /*
4417 	     * allow '=' and ':' for hystorical reasons (MSDOS command.com
4418 	     * allows only one '=' character per "set" command line. grrr. (jw)
4419 	     */
4420 	    if (nextchar == '?'
4421 		    || (prefix == 1
4422 			&& vim_strchr((char_u *)"=:&<", nextchar) == NULL
4423 			&& !(flags & P_BOOL)))
4424 	    {
4425 		/*
4426 		 * print value
4427 		 */
4428 		if (did_show)
4429 		    msg_putchar('\n');	    /* cursor below last one */
4430 		else
4431 		{
4432 		    gotocmdline(TRUE);	    /* cursor at status line */
4433 		    did_show = TRUE;	    /* remember that we did a line */
4434 		}
4435 		if (opt_idx >= 0)
4436 		{
4437 		    showoneopt(&options[opt_idx], opt_flags);
4438 #ifdef FEAT_EVAL
4439 		    if (p_verbose > 0)
4440 		    {
4441 			/* Mention where the option was last set. */
4442 			if (varp == options[opt_idx].var)
4443 			    last_set_msg(options[opt_idx].scriptID);
4444 			else if ((int)options[opt_idx].indir & PV_WIN)
4445 			    last_set_msg(curwin->w_p_scriptID[
4446 				      (int)options[opt_idx].indir & PV_MASK]);
4447 			else if ((int)options[opt_idx].indir & PV_BUF)
4448 			    last_set_msg(curbuf->b_p_scriptID[
4449 				      (int)options[opt_idx].indir & PV_MASK]);
4450 		    }
4451 #endif
4452 		}
4453 		else
4454 		{
4455 		    char_u	    *p;
4456 
4457 		    p = find_termcode(key_name);
4458 		    if (p == NULL)
4459 		    {
4460 			errmsg = (char_u *)N_("E846: Key code not set");
4461 			goto skip;
4462 		    }
4463 		    else
4464 			(void)show_one_termcode(key_name, p, TRUE);
4465 		}
4466 		if (nextchar != '?'
4467 			&& nextchar != NUL && !vim_iswhite(afterchar))
4468 		    errmsg = e_trailing;
4469 	    }
4470 	    else
4471 	    {
4472 		if (flags & P_BOOL)		    /* boolean */
4473 		{
4474 		    if (nextchar == '=' || nextchar == ':')
4475 		    {
4476 			errmsg = e_invarg;
4477 			goto skip;
4478 		    }
4479 
4480 		    /*
4481 		     * ":set opt!": invert
4482 		     * ":set opt&": reset to default value
4483 		     * ":set opt<": reset to global value
4484 		     */
4485 		    if (nextchar == '!')
4486 			value = *(int *)(varp) ^ 1;
4487 		    else if (nextchar == '&')
4488 			value = (int)(long)(long_i)options[opt_idx].def_val[
4489 						((flags & P_VI_DEF) || cp_val)
4490 						 ?  VI_DEFAULT : VIM_DEFAULT];
4491 		    else if (nextchar == '<')
4492 		    {
4493 			/* For 'autoread' -1 means to use global value. */
4494 			if ((int *)varp == &curbuf->b_p_ar
4495 						    && opt_flags == OPT_LOCAL)
4496 			    value = -1;
4497 			else
4498 			    value = *(int *)get_varp_scope(&(options[opt_idx]),
4499 								  OPT_GLOBAL);
4500 		    }
4501 		    else
4502 		    {
4503 			/*
4504 			 * ":set invopt": invert
4505 			 * ":set opt" or ":set noopt": set or reset
4506 			 */
4507 			if (nextchar != NUL && !vim_iswhite(afterchar))
4508 			{
4509 			    errmsg = e_trailing;
4510 			    goto skip;
4511 			}
4512 			if (prefix == 2)	/* inv */
4513 			    value = *(int *)(varp) ^ 1;
4514 			else
4515 			    value = prefix;
4516 		    }
4517 
4518 		    errmsg = set_bool_option(opt_idx, varp, (int)value,
4519 								   opt_flags);
4520 		}
4521 		else				    /* numeric or string */
4522 		{
4523 		    if (vim_strchr((char_u *)"=:&<", nextchar) == NULL
4524 							       || prefix != 1)
4525 		    {
4526 			errmsg = e_invarg;
4527 			goto skip;
4528 		    }
4529 
4530 		    if (flags & P_NUM)		    /* numeric */
4531 		    {
4532 			/*
4533 			 * Different ways to set a number option:
4534 			 * &	    set to default value
4535 			 * <	    set to global value
4536 			 * <xx>	    accept special key codes for 'wildchar'
4537 			 * c	    accept any non-digit for 'wildchar'
4538 			 * [-]0-9   set number
4539 			 * other    error
4540 			 */
4541 			++arg;
4542 			if (nextchar == '&')
4543 			    value = (long)(long_i)options[opt_idx].def_val[
4544 						((flags & P_VI_DEF) || cp_val)
4545 						 ?  VI_DEFAULT : VIM_DEFAULT];
4546 			else if (nextchar == '<')
4547 			{
4548 			    /* For 'undolevels' NO_LOCAL_UNDOLEVEL means to
4549 			     * use the global value. */
4550 			    if ((long *)varp == &curbuf->b_p_ul
4551 						    && opt_flags == OPT_LOCAL)
4552 				value = NO_LOCAL_UNDOLEVEL;
4553 			    else
4554 				value = *(long *)get_varp_scope(
4555 					     &(options[opt_idx]), OPT_GLOBAL);
4556 			}
4557 			else if (((long *)varp == &p_wc
4558 				    || (long *)varp == &p_wcm)
4559 				&& (*arg == '<'
4560 				    || *arg == '^'
4561 				    || ((!arg[1] || vim_iswhite(arg[1]))
4562 					&& !VIM_ISDIGIT(*arg))))
4563 			{
4564 			    value = string_to_key(arg);
4565 			    if (value == 0 && (long *)varp != &p_wcm)
4566 			    {
4567 				errmsg = e_invarg;
4568 				goto skip;
4569 			    }
4570 			}
4571 			else if (*arg == '-' || VIM_ISDIGIT(*arg))
4572 			{
4573 			    /* Allow negative (for 'undolevels'), octal and
4574 			     * hex numbers. */
4575 			    vim_str2nr(arg, NULL, &i, STR2NR_ALL,
4576 							     &value, NULL, 0);
4577 			    if (arg[i] != NUL && !vim_iswhite(arg[i]))
4578 			    {
4579 				errmsg = e_invarg;
4580 				goto skip;
4581 			    }
4582 			}
4583 			else
4584 			{
4585 			    errmsg = (char_u *)N_("E521: Number required after =");
4586 			    goto skip;
4587 			}
4588 
4589 			if (adding)
4590 			    value = *(long *)varp + value;
4591 			if (prepending)
4592 			    value = *(long *)varp * value;
4593 			if (removing)
4594 			    value = *(long *)varp - value;
4595 			errmsg = set_num_option(opt_idx, varp, value,
4596 					   errbuf, sizeof(errbuf), opt_flags);
4597 		    }
4598 		    else if (opt_idx >= 0)		    /* string */
4599 		    {
4600 			char_u	    *save_arg = NULL;
4601 			char_u	    *s = NULL;
4602 			char_u	    *oldval = NULL;	/* previous value if *varp */
4603 			char_u	    *newval;
4604 			char_u	    *origval = NULL;
4605 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
4606 			char_u	    *saved_origval = NULL;
4607 #endif
4608 			unsigned    newlen;
4609 			int	    comma;
4610 			int	    bs;
4611 			int	    new_value_alloced;	/* new string option
4612 							   was allocated */
4613 
4614 			/* When using ":set opt=val" for a global option
4615 			 * with a local value the local value will be
4616 			 * reset, use the global value here. */
4617 			if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
4618 				&& ((int)options[opt_idx].indir & PV_BOTH))
4619 			    varp = options[opt_idx].var;
4620 
4621 			/* The old value is kept until we are sure that the
4622 			 * new value is valid. */
4623 			oldval = *(char_u **)varp;
4624 			if (nextchar == '&')	/* set to default val */
4625 			{
4626 			    newval = options[opt_idx].def_val[
4627 						((flags & P_VI_DEF) || cp_val)
4628 						 ?  VI_DEFAULT : VIM_DEFAULT];
4629 			    if ((char_u **)varp == &p_bg)
4630 			    {
4631 				/* guess the value of 'background' */
4632 #ifdef FEAT_GUI
4633 				if (gui.in_use)
4634 				    newval = gui_bg_default();
4635 				else
4636 #endif
4637 				    newval = term_bg_default();
4638 			    }
4639 
4640 			    /* expand environment variables and ~ (since the
4641 			     * default value was already expanded, only
4642 			     * required when an environment variable was set
4643 			     * later */
4644 			    if (newval == NULL)
4645 				newval = empty_option;
4646 			    else
4647 			    {
4648 				s = option_expand(opt_idx, newval);
4649 				if (s == NULL)
4650 				    s = newval;
4651 				newval = vim_strsave(s);
4652 			    }
4653 			    new_value_alloced = TRUE;
4654 			}
4655 			else if (nextchar == '<')	/* set to global val */
4656 			{
4657 			    newval = vim_strsave(*(char_u **)get_varp_scope(
4658 					     &(options[opt_idx]), OPT_GLOBAL));
4659 			    new_value_alloced = TRUE;
4660 			}
4661 			else
4662 			{
4663 			    ++arg;	/* jump to after the '=' or ':' */
4664 
4665 			    /*
4666 			     * Set 'keywordprg' to ":help" if an empty
4667 			     * value was passed to :set by the user.
4668 			     * Misuse errbuf[] for the resulting string.
4669 			     */
4670 			    if (varp == (char_u *)&p_kp
4671 					      && (*arg == NUL || *arg == ' '))
4672 			    {
4673 				STRCPY(errbuf, ":help");
4674 				save_arg = arg;
4675 				arg = errbuf;
4676 			    }
4677 			    /*
4678 			     * Convert 'backspace' number to string, for
4679 			     * adding, prepending and removing string.
4680 			     */
4681 			    else if (varp == (char_u *)&p_bs
4682 					 && VIM_ISDIGIT(**(char_u **)varp))
4683 			    {
4684 				i = getdigits((char_u **)varp);
4685 				switch (i)
4686 				{
4687 				    case 0:
4688 					*(char_u **)varp = empty_option;
4689 					break;
4690 				    case 1:
4691 					*(char_u **)varp = vim_strsave(
4692 						      (char_u *)"indent,eol");
4693 					break;
4694 				    case 2:
4695 					*(char_u **)varp = vim_strsave(
4696 						(char_u *)"indent,eol,start");
4697 					break;
4698 				}
4699 				vim_free(oldval);
4700 				oldval = *(char_u **)varp;
4701 			    }
4702 			    /*
4703 			     * Convert 'whichwrap' number to string, for
4704 			     * backwards compatibility with Vim 3.0.
4705 			     * Misuse errbuf[] for the resulting string.
4706 			     */
4707 			    else if (varp == (char_u *)&p_ww
4708 							 && VIM_ISDIGIT(*arg))
4709 			    {
4710 				*errbuf = NUL;
4711 				i = getdigits(&arg);
4712 				if (i & 1)
4713 				    STRCAT(errbuf, "b,");
4714 				if (i & 2)
4715 				    STRCAT(errbuf, "s,");
4716 				if (i & 4)
4717 				    STRCAT(errbuf, "h,l,");
4718 				if (i & 8)
4719 				    STRCAT(errbuf, "<,>,");
4720 				if (i & 16)
4721 				    STRCAT(errbuf, "[,],");
4722 				if (*errbuf != NUL)	/* remove trailing , */
4723 				    errbuf[STRLEN(errbuf) - 1] = NUL;
4724 				save_arg = arg;
4725 				arg = errbuf;
4726 			    }
4727 			    /*
4728 			     * Remove '>' before 'dir' and 'bdir', for
4729 			     * backwards compatibility with version 3.0
4730 			     */
4731 			    else if (  *arg == '>'
4732 				    && (varp == (char_u *)&p_dir
4733 					    || varp == (char_u *)&p_bdir))
4734 			    {
4735 				++arg;
4736 			    }
4737 
4738 			    /* When setting the local value of a global
4739 			     * option, the old value may be the global value. */
4740 			    if (((int)options[opt_idx].indir & PV_BOTH)
4741 						   && (opt_flags & OPT_LOCAL))
4742 				origval = *(char_u **)get_varp(
4743 							   &options[opt_idx]);
4744 			    else
4745 				origval = oldval;
4746 
4747 			    /*
4748 			     * Copy the new string into allocated memory.
4749 			     * Can't use set_string_option_direct(), because
4750 			     * we need to remove the backslashes.
4751 			     */
4752 			    /* get a bit too much */
4753 			    newlen = (unsigned)STRLEN(arg) + 1;
4754 			    if (adding || prepending || removing)
4755 				newlen += (unsigned)STRLEN(origval) + 1;
4756 			    newval = alloc(newlen);
4757 			    if (newval == NULL)  /* out of mem, don't change */
4758 				break;
4759 			    s = newval;
4760 
4761 			    /*
4762 			     * Copy the string, skip over escaped chars.
4763 			     * For MS-DOS and WIN32 backslashes before normal
4764 			     * file name characters are not removed, and keep
4765 			     * backslash at start, for "\\machine\path", but
4766 			     * do remove it for "\\\\machine\\path".
4767 			     * The reverse is found in ExpandOldSetting().
4768 			     */
4769 			    while (*arg && !vim_iswhite(*arg))
4770 			    {
4771 				if (*arg == '\\' && arg[1] != NUL
4772 #ifdef BACKSLASH_IN_FILENAME
4773 					&& !((flags & P_EXPAND)
4774 						&& vim_isfilec(arg[1])
4775 						&& (arg[1] != '\\'
4776 						    || (s == newval
4777 							&& arg[2] != '\\')))
4778 #endif
4779 								    )
4780 				    ++arg;	/* remove backslash */
4781 #ifdef FEAT_MBYTE
4782 				if (has_mbyte
4783 					&& (i = (*mb_ptr2len)(arg)) > 1)
4784 				{
4785 				    /* copy multibyte char */
4786 				    mch_memmove(s, arg, (size_t)i);
4787 				    arg += i;
4788 				    s += i;
4789 				}
4790 				else
4791 #endif
4792 				    *s++ = *arg++;
4793 			    }
4794 			    *s = NUL;
4795 
4796 			    /*
4797 			     * Expand environment variables and ~.
4798 			     * Don't do it when adding without inserting a
4799 			     * comma.
4800 			     */
4801 			    if (!(adding || prepending || removing)
4802 							 || (flags & P_COMMA))
4803 			    {
4804 				s = option_expand(opt_idx, newval);
4805 				if (s != NULL)
4806 				{
4807 				    vim_free(newval);
4808 				    newlen = (unsigned)STRLEN(s) + 1;
4809 				    if (adding || prepending || removing)
4810 					newlen += (unsigned)STRLEN(origval) + 1;
4811 				    newval = alloc(newlen);
4812 				    if (newval == NULL)
4813 					break;
4814 				    STRCPY(newval, s);
4815 				}
4816 			    }
4817 
4818 			    /* locate newval[] in origval[] when removing it
4819 			     * and when adding to avoid duplicates */
4820 			    i = 0;	/* init for GCC */
4821 			    if (removing || (flags & P_NODUP))
4822 			    {
4823 				i = (int)STRLEN(newval);
4824 				bs = 0;
4825 				for (s = origval; *s; ++s)
4826 				{
4827 				    if ((!(flags & P_COMMA)
4828 						|| s == origval
4829 						|| (s[-1] == ',' && !(bs & 1)))
4830 					    && STRNCMP(s, newval, i) == 0
4831 					    && (!(flags & P_COMMA)
4832 						|| s[i] == ','
4833 						|| s[i] == NUL))
4834 					break;
4835 				    /* Count backslashes.  Only a comma with an
4836 				     * even number of backslashes or a single
4837 				     * backslash preceded by a comma before it
4838 				     * is recognized as a separator */
4839 				    if ((s > origval + 1
4840 						&& s[-1] == '\\'
4841 						&& s[-2] != ',')
4842 					    || (s == origval + 1
4843 						&& s[-1] == '\\'))
4844 
4845 					++bs;
4846 				    else
4847 					bs = 0;
4848 				}
4849 
4850 				/* do not add if already there */
4851 				if ((adding || prepending) && *s)
4852 				{
4853 				    prepending = FALSE;
4854 				    adding = FALSE;
4855 				    STRCPY(newval, origval);
4856 				}
4857 			    }
4858 
4859 			    /* concatenate the two strings; add a ',' if
4860 			     * needed */
4861 			    if (adding || prepending)
4862 			    {
4863 				comma = ((flags & P_COMMA) && *origval != NUL
4864 							   && *newval != NUL);
4865 				if (adding)
4866 				{
4867 				    i = (int)STRLEN(origval);
4868 				    /* strip a trailing comma, would get 2 */
4869 				    if (comma && i > 1
4870 					  && (flags & P_ONECOMMA) == P_ONECOMMA
4871 					  && origval[i - 1] == ','
4872 					  && origval[i - 2] != '\\')
4873 					i--;
4874 				    mch_memmove(newval + i + comma, newval,
4875 							  STRLEN(newval) + 1);
4876 				    mch_memmove(newval, origval, (size_t)i);
4877 				}
4878 				else
4879 				{
4880 				    i = (int)STRLEN(newval);
4881 				    STRMOVE(newval + i + comma, origval);
4882 				}
4883 				if (comma)
4884 				    newval[i] = ',';
4885 			    }
4886 
4887 			    /* Remove newval[] from origval[]. (Note: "i" has
4888 			     * been set above and is used here). */
4889 			    if (removing)
4890 			    {
4891 				STRCPY(newval, origval);
4892 				if (*s)
4893 				{
4894 				    /* may need to remove a comma */
4895 				    if (flags & P_COMMA)
4896 				    {
4897 					if (s == origval)
4898 					{
4899 					    /* include comma after string */
4900 					    if (s[i] == ',')
4901 						++i;
4902 					}
4903 					else
4904 					{
4905 					    /* include comma before string */
4906 					    --s;
4907 					    ++i;
4908 					}
4909 				    }
4910 				    STRMOVE(newval + (s - origval), s + i);
4911 				}
4912 			    }
4913 
4914 			    if (flags & P_FLAGLIST)
4915 			    {
4916 				/* Remove flags that appear twice. */
4917 				for (s = newval; *s; ++s)
4918 				    if ((!(flags & P_COMMA) || *s != ',')
4919 					    && vim_strchr(s + 1, *s) != NULL)
4920 				    {
4921 					STRMOVE(s, s + 1);
4922 					--s;
4923 				    }
4924 			    }
4925 
4926 			    if (save_arg != NULL)   /* number for 'whichwrap' */
4927 				arg = save_arg;
4928 			    new_value_alloced = TRUE;
4929 			}
4930 
4931 			/* Set the new value. */
4932 			*(char_u **)(varp) = newval;
4933 
4934 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
4935 			if (!starting
4936 # ifdef FEAT_CRYPT
4937 				&& options[opt_idx].indir != PV_KEY
4938 # endif
4939 							   && origval != NULL)
4940 			    /* origval may be freed by
4941 			     * did_set_string_option(), make a copy. */
4942 			    saved_origval = vim_strsave(origval);
4943 #endif
4944 
4945 			/* Handle side effects, and set the global value for
4946 			 * ":set" on local options. */
4947 			errmsg = did_set_string_option(opt_idx, (char_u **)varp,
4948 				new_value_alloced, oldval, errbuf, opt_flags);
4949 
4950 			/* If error detected, print the error message. */
4951 			if (errmsg != NULL)
4952 			{
4953 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
4954 			    vim_free(saved_origval);
4955 #endif
4956 			    goto skip;
4957 			}
4958 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
4959 			if (saved_origval != NULL)
4960 			{
4961 			    char_u buf_type[7];
4962 
4963 			    sprintf((char *)buf_type, "%s",
4964 				(opt_flags & OPT_LOCAL) ? "local" : "global");
4965 			    set_vim_var_string(VV_OPTION_NEW,
4966 							*(char_u **)varp, -1);
4967 			    set_vim_var_string(VV_OPTION_OLD, saved_origval, -1);
4968 			    set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
4969 			    apply_autocmds(EVENT_OPTIONSET,
4970 					  (char_u *)options[opt_idx].fullname,
4971 				NULL, FALSE, NULL);
4972 			    reset_v_option_vars();
4973 			    vim_free(saved_origval);
4974 			}
4975 #endif
4976 
4977 		    }
4978 		    else	    /* key code option */
4979 		    {
4980 			char_u	    *p;
4981 
4982 			if (nextchar == '&')
4983 			{
4984 			    if (add_termcap_entry(key_name, TRUE) == FAIL)
4985 				errmsg = (char_u *)N_("E522: Not found in termcap");
4986 			}
4987 			else
4988 			{
4989 			    ++arg; /* jump to after the '=' or ':' */
4990 			    for (p = arg; *p && !vim_iswhite(*p); ++p)
4991 				if (*p == '\\' && p[1] != NUL)
4992 				    ++p;
4993 			    nextchar = *p;
4994 			    *p = NUL;
4995 			    add_termcode(key_name, arg, FALSE);
4996 			    *p = nextchar;
4997 			}
4998 			if (full_screen)
4999 			    ttest(FALSE);
5000 			redraw_all_later(CLEAR);
5001 		    }
5002 		}
5003 
5004 		if (opt_idx >= 0)
5005 		    did_set_option(opt_idx, opt_flags,
5006 					 !prepending && !adding && !removing);
5007 	    }
5008 
5009 skip:
5010 	    /*
5011 	     * Advance to next argument.
5012 	     * - skip until a blank found, taking care of backslashes
5013 	     * - skip blanks
5014 	     * - skip one "=val" argument (for hidden options ":set gfn =xx")
5015 	     */
5016 	    for (i = 0; i < 2 ; ++i)
5017 	    {
5018 		while (*arg != NUL && !vim_iswhite(*arg))
5019 		    if (*arg++ == '\\' && *arg != NUL)
5020 			++arg;
5021 		arg = skipwhite(arg);
5022 		if (*arg != '=')
5023 		    break;
5024 	    }
5025 	}
5026 
5027 	if (errmsg != NULL)
5028 	{
5029 	    vim_strncpy(IObuff, (char_u *)_(errmsg), IOSIZE - 1);
5030 	    i = (int)STRLEN(IObuff) + 2;
5031 	    if (i + (arg - startarg) < IOSIZE)
5032 	    {
5033 		/* append the argument with the error */
5034 		STRCAT(IObuff, ": ");
5035 		mch_memmove(IObuff + i, startarg, (arg - startarg));
5036 		IObuff[i + (arg - startarg)] = NUL;
5037 	    }
5038 	    /* make sure all characters are printable */
5039 	    trans_characters(IObuff, IOSIZE);
5040 
5041 	    ++no_wait_return;	/* wait_return done later */
5042 	    emsg(IObuff);	/* show error highlighted */
5043 	    --no_wait_return;
5044 
5045 	    return FAIL;
5046 	}
5047 
5048 	arg = skipwhite(arg);
5049     }
5050 
5051 theend:
5052     if (silent_mode && did_show)
5053     {
5054 	/* After displaying option values in silent mode. */
5055 	silent_mode = FALSE;
5056 	info_message = TRUE;	/* use mch_msg(), not mch_errmsg() */
5057 	msg_putchar('\n');
5058 	cursor_on();		/* msg_start() switches it off */
5059 	out_flush();
5060 	silent_mode = TRUE;
5061 	info_message = FALSE;	/* use mch_msg(), not mch_errmsg() */
5062     }
5063 
5064     return OK;
5065 }
5066 
5067 /*
5068  * Call this when an option has been given a new value through a user command.
5069  * Sets the P_WAS_SET flag and takes care of the P_INSECURE flag.
5070  */
5071     static void
5072 did_set_option(
5073     int	    opt_idx,
5074     int	    opt_flags,	    /* possibly with OPT_MODELINE */
5075     int	    new_value)	    /* value was replaced completely */
5076 {
5077     long_u	*p;
5078 
5079     options[opt_idx].flags |= P_WAS_SET;
5080 
5081     /* When an option is set in the sandbox, from a modeline or in secure mode
5082      * set the P_INSECURE flag.  Otherwise, if a new value is stored reset the
5083      * flag. */
5084     p = insecure_flag(opt_idx, opt_flags);
5085     if (secure
5086 #ifdef HAVE_SANDBOX
5087 	    || sandbox != 0
5088 #endif
5089 	    || (opt_flags & OPT_MODELINE))
5090 	*p = *p | P_INSECURE;
5091     else if (new_value)
5092 	*p = *p & ~P_INSECURE;
5093 }
5094 
5095     static char_u *
5096 illegal_char(char_u *errbuf, int c)
5097 {
5098     if (errbuf == NULL)
5099 	return (char_u *)"";
5100     sprintf((char *)errbuf, _("E539: Illegal character <%s>"),
5101 							(char *)transchar(c));
5102     return errbuf;
5103 }
5104 
5105 /*
5106  * Convert a key name or string into a key value.
5107  * Used for 'wildchar' and 'cedit' options.
5108  */
5109     static int
5110 string_to_key(char_u *arg)
5111 {
5112     if (*arg == '<')
5113 	return find_key_option(arg + 1);
5114     if (*arg == '^')
5115 	return Ctrl_chr(arg[1]);
5116     return *arg;
5117 }
5118 
5119 #ifdef FEAT_CMDWIN
5120 /*
5121  * Check value of 'cedit' and set cedit_key.
5122  * Returns NULL if value is OK, error message otherwise.
5123  */
5124     static char_u *
5125 check_cedit(void)
5126 {
5127     int n;
5128 
5129     if (*p_cedit == NUL)
5130 	cedit_key = -1;
5131     else
5132     {
5133 	n = string_to_key(p_cedit);
5134 	if (vim_isprintc(n))
5135 	    return e_invarg;
5136 	cedit_key = n;
5137     }
5138     return NULL;
5139 }
5140 #endif
5141 
5142 #ifdef FEAT_TITLE
5143 /*
5144  * When changing 'title', 'titlestring', 'icon' or 'iconstring', call
5145  * maketitle() to create and display it.
5146  * When switching the title or icon off, call mch_restore_title() to get
5147  * the old value back.
5148  */
5149     static void
5150 did_set_title(
5151     int	    icon)	    /* Did set icon instead of title */
5152 {
5153     if (starting != NO_SCREEN
5154 #ifdef FEAT_GUI
5155 	    && !gui.starting
5156 #endif
5157 				)
5158     {
5159 	maketitle();
5160 	if (icon)
5161 	{
5162 	    if (!p_icon)
5163 		mch_restore_title(2);
5164 	}
5165 	else
5166 	{
5167 	    if (!p_title)
5168 		mch_restore_title(1);
5169 	}
5170     }
5171 }
5172 #endif
5173 
5174 /*
5175  * set_options_bin -  called when 'bin' changes value.
5176  */
5177     void
5178 set_options_bin(
5179     int		oldval,
5180     int		newval,
5181     int		opt_flags)	/* OPT_LOCAL and/or OPT_GLOBAL */
5182 {
5183     /*
5184      * The option values that are changed when 'bin' changes are
5185      * copied when 'bin is set and restored when 'bin' is reset.
5186      */
5187     if (newval)
5188     {
5189 	if (!oldval)		/* switched on */
5190 	{
5191 	    if (!(opt_flags & OPT_GLOBAL))
5192 	    {
5193 		curbuf->b_p_tw_nobin = curbuf->b_p_tw;
5194 		curbuf->b_p_wm_nobin = curbuf->b_p_wm;
5195 		curbuf->b_p_ml_nobin = curbuf->b_p_ml;
5196 		curbuf->b_p_et_nobin = curbuf->b_p_et;
5197 	    }
5198 	    if (!(opt_flags & OPT_LOCAL))
5199 	    {
5200 		p_tw_nobin = p_tw;
5201 		p_wm_nobin = p_wm;
5202 		p_ml_nobin = p_ml;
5203 		p_et_nobin = p_et;
5204 	    }
5205 	}
5206 
5207 	if (!(opt_flags & OPT_GLOBAL))
5208 	{
5209 	    curbuf->b_p_tw = 0;	/* no automatic line wrap */
5210 	    curbuf->b_p_wm = 0;	/* no automatic line wrap */
5211 	    curbuf->b_p_ml = 0;	/* no modelines */
5212 	    curbuf->b_p_et = 0;	/* no expandtab */
5213 	}
5214 	if (!(opt_flags & OPT_LOCAL))
5215 	{
5216 	    p_tw = 0;
5217 	    p_wm = 0;
5218 	    p_ml = FALSE;
5219 	    p_et = FALSE;
5220 	    p_bin = TRUE;	/* needed when called for the "-b" argument */
5221 	}
5222     }
5223     else if (oldval)		/* switched off */
5224     {
5225 	if (!(opt_flags & OPT_GLOBAL))
5226 	{
5227 	    curbuf->b_p_tw = curbuf->b_p_tw_nobin;
5228 	    curbuf->b_p_wm = curbuf->b_p_wm_nobin;
5229 	    curbuf->b_p_ml = curbuf->b_p_ml_nobin;
5230 	    curbuf->b_p_et = curbuf->b_p_et_nobin;
5231 	}
5232 	if (!(opt_flags & OPT_LOCAL))
5233 	{
5234 	    p_tw = p_tw_nobin;
5235 	    p_wm = p_wm_nobin;
5236 	    p_ml = p_ml_nobin;
5237 	    p_et = p_et_nobin;
5238 	}
5239     }
5240 }
5241 
5242 #ifdef FEAT_VIMINFO
5243 /*
5244  * Find the parameter represented by the given character (eg ', :, ", or /),
5245  * and return its associated value in the 'viminfo' string.
5246  * Only works for number parameters, not for 'r' or 'n'.
5247  * If the parameter is not specified in the string or there is no following
5248  * number, return -1.
5249  */
5250     int
5251 get_viminfo_parameter(int type)
5252 {
5253     char_u  *p;
5254 
5255     p = find_viminfo_parameter(type);
5256     if (p != NULL && VIM_ISDIGIT(*p))
5257 	return atoi((char *)p);
5258     return -1;
5259 }
5260 
5261 /*
5262  * Find the parameter represented by the given character (eg ''', ':', '"', or
5263  * '/') in the 'viminfo' option and return a pointer to the string after it.
5264  * Return NULL if the parameter is not specified in the string.
5265  */
5266     char_u *
5267 find_viminfo_parameter(int type)
5268 {
5269     char_u  *p;
5270 
5271     for (p = p_viminfo; *p; ++p)
5272     {
5273 	if (*p == type)
5274 	    return p + 1;
5275 	if (*p == 'n')		    /* 'n' is always the last one */
5276 	    break;
5277 	p = vim_strchr(p, ',');	    /* skip until next ',' */
5278 	if (p == NULL)		    /* hit the end without finding parameter */
5279 	    break;
5280     }
5281     return NULL;
5282 }
5283 #endif
5284 
5285 /*
5286  * Expand environment variables for some string options.
5287  * These string options cannot be indirect!
5288  * If "val" is NULL expand the current value of the option.
5289  * Return pointer to NameBuff, or NULL when not expanded.
5290  */
5291     static char_u *
5292 option_expand(int opt_idx, char_u *val)
5293 {
5294     /* if option doesn't need expansion nothing to do */
5295     if (!(options[opt_idx].flags & P_EXPAND) || options[opt_idx].var == NULL)
5296 	return NULL;
5297 
5298     /* If val is longer than MAXPATHL no meaningful expansion can be done,
5299      * expand_env() would truncate the string. */
5300     if (val != NULL && STRLEN(val) > MAXPATHL)
5301 	return NULL;
5302 
5303     if (val == NULL)
5304 	val = *(char_u **)options[opt_idx].var;
5305 
5306     /*
5307      * Expanding this with NameBuff, expand_env() must not be passed IObuff.
5308      * Escape spaces when expanding 'tags', they are used to separate file
5309      * names.
5310      * For 'spellsuggest' expand after "file:".
5311      */
5312     expand_env_esc(val, NameBuff, MAXPATHL,
5313 	    (char_u **)options[opt_idx].var == &p_tags, FALSE,
5314 #ifdef FEAT_SPELL
5315 	    (char_u **)options[opt_idx].var == &p_sps ? (char_u *)"file:" :
5316 #endif
5317 				  NULL);
5318     if (STRCMP(NameBuff, val) == 0)   /* they are the same */
5319 	return NULL;
5320 
5321     return NameBuff;
5322 }
5323 
5324 /*
5325  * After setting various option values: recompute variables that depend on
5326  * option values.
5327  */
5328     static void
5329 didset_options(void)
5330 {
5331     /* initialize the table for 'iskeyword' et.al. */
5332     (void)init_chartab();
5333 
5334 #ifdef FEAT_MBYTE
5335     (void)opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE);
5336 #endif
5337     (void)opt_strings_flags(p_bkc, p_bkc_values, &bkc_flags, TRUE);
5338     (void)opt_strings_flags(p_bo, p_bo_values, &bo_flags, TRUE);
5339 #ifdef FEAT_SESSION
5340     (void)opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE);
5341     (void)opt_strings_flags(p_vop, p_ssop_values, &vop_flags, TRUE);
5342 #endif
5343 #ifdef FEAT_FOLDING
5344     (void)opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE);
5345 #endif
5346     (void)opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE);
5347     (void)opt_strings_flags(p_tc, p_tc_values, &tc_flags, FALSE);
5348 #ifdef FEAT_VIRTUALEDIT
5349     (void)opt_strings_flags(p_ve, p_ve_values, &ve_flags, TRUE);
5350 #endif
5351 #if defined(FEAT_MOUSE) && (defined(UNIX) || defined(VMS))
5352     (void)opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE);
5353 #endif
5354 #ifdef FEAT_SPELL
5355     (void)spell_check_msm();
5356     (void)spell_check_sps();
5357     (void)compile_cap_prog(curwin->w_s);
5358     (void)did_set_spell_option(TRUE);
5359 #endif
5360 #if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
5361     (void)opt_strings_flags(p_toolbar, p_toolbar_values, &toolbar_flags, TRUE);
5362 #endif
5363 #if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK)
5364     (void)opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE);
5365 #endif
5366 #ifdef FEAT_CMDWIN
5367     /* set cedit_key */
5368     (void)check_cedit();
5369 #endif
5370 #ifdef FEAT_LINEBREAK
5371     briopt_check(curwin);
5372 #endif
5373 #ifdef FEAT_LINEBREAK
5374     /* initialize the table for 'breakat'. */
5375     fill_breakat_flags();
5376 #endif
5377 
5378 }
5379 
5380 /*
5381  * More side effects of setting options.
5382  */
5383     static void
5384 didset_options2(void)
5385 {
5386     /* Initialize the highlight_attr[] table. */
5387     (void)highlight_changed();
5388 
5389     /* Parse default for 'wildmode'  */
5390     check_opt_wim();
5391 
5392     (void)set_chars_option(&p_lcs);
5393 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
5394     /* Parse default for 'fillchars'. */
5395     (void)set_chars_option(&p_fcs);
5396 #endif
5397 
5398 #ifdef FEAT_CLIPBOARD
5399     /* Parse default for 'clipboard' */
5400     (void)check_clipboard_option();
5401 #endif
5402 }
5403 
5404 /*
5405  * Check for string options that are NULL (normally only termcap options).
5406  */
5407     void
5408 check_options(void)
5409 {
5410     int		opt_idx;
5411 
5412     for (opt_idx = 0; options[opt_idx].fullname != NULL; opt_idx++)
5413 	if ((options[opt_idx].flags & P_STRING) && options[opt_idx].var != NULL)
5414 	    check_string_option((char_u **)get_varp(&(options[opt_idx])));
5415 }
5416 
5417 /*
5418  * Check string options in a buffer for NULL value.
5419  */
5420     void
5421 check_buf_options(buf_T *buf)
5422 {
5423 #if defined(FEAT_QUICKFIX)
5424     check_string_option(&buf->b_p_bh);
5425     check_string_option(&buf->b_p_bt);
5426 #endif
5427 #ifdef FEAT_MBYTE
5428     check_string_option(&buf->b_p_fenc);
5429 #endif
5430     check_string_option(&buf->b_p_ff);
5431 #ifdef FEAT_FIND_ID
5432     check_string_option(&buf->b_p_def);
5433     check_string_option(&buf->b_p_inc);
5434 # ifdef FEAT_EVAL
5435     check_string_option(&buf->b_p_inex);
5436 # endif
5437 #endif
5438 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
5439     check_string_option(&buf->b_p_inde);
5440     check_string_option(&buf->b_p_indk);
5441 #endif
5442 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
5443     check_string_option(&buf->b_p_bexpr);
5444 #endif
5445 #if defined(FEAT_CRYPT)
5446     check_string_option(&buf->b_p_cm);
5447 #endif
5448 #if defined(FEAT_EVAL)
5449     check_string_option(&buf->b_p_fex);
5450 #endif
5451 #ifdef FEAT_CRYPT
5452     check_string_option(&buf->b_p_key);
5453 #endif
5454     check_string_option(&buf->b_p_kp);
5455     check_string_option(&buf->b_p_mps);
5456     check_string_option(&buf->b_p_fo);
5457     check_string_option(&buf->b_p_flp);
5458     check_string_option(&buf->b_p_isk);
5459 #ifdef FEAT_COMMENTS
5460     check_string_option(&buf->b_p_com);
5461 #endif
5462 #ifdef FEAT_FOLDING
5463     check_string_option(&buf->b_p_cms);
5464 #endif
5465     check_string_option(&buf->b_p_nf);
5466 #ifdef FEAT_TEXTOBJ
5467     check_string_option(&buf->b_p_qe);
5468 #endif
5469 #ifdef FEAT_SYN_HL
5470     check_string_option(&buf->b_p_syn);
5471     check_string_option(&buf->b_s.b_syn_isk);
5472 #endif
5473 #ifdef FEAT_SPELL
5474     check_string_option(&buf->b_s.b_p_spc);
5475     check_string_option(&buf->b_s.b_p_spf);
5476     check_string_option(&buf->b_s.b_p_spl);
5477 #endif
5478 #ifdef FEAT_SEARCHPATH
5479     check_string_option(&buf->b_p_sua);
5480 #endif
5481 #ifdef FEAT_CINDENT
5482     check_string_option(&buf->b_p_cink);
5483     check_string_option(&buf->b_p_cino);
5484     parse_cino(buf);
5485 #endif
5486 #ifdef FEAT_AUTOCMD
5487     check_string_option(&buf->b_p_ft);
5488 #endif
5489 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
5490     check_string_option(&buf->b_p_cinw);
5491 #endif
5492 #ifdef FEAT_INS_EXPAND
5493     check_string_option(&buf->b_p_cpt);
5494 #endif
5495 #ifdef FEAT_COMPL_FUNC
5496     check_string_option(&buf->b_p_cfu);
5497     check_string_option(&buf->b_p_ofu);
5498 #endif
5499 #ifdef FEAT_KEYMAP
5500     check_string_option(&buf->b_p_keymap);
5501 #endif
5502 #ifdef FEAT_QUICKFIX
5503     check_string_option(&buf->b_p_gp);
5504     check_string_option(&buf->b_p_mp);
5505     check_string_option(&buf->b_p_efm);
5506 #endif
5507     check_string_option(&buf->b_p_ep);
5508     check_string_option(&buf->b_p_path);
5509     check_string_option(&buf->b_p_tags);
5510     check_string_option(&buf->b_p_tc);
5511 #ifdef FEAT_INS_EXPAND
5512     check_string_option(&buf->b_p_dict);
5513     check_string_option(&buf->b_p_tsr);
5514 #endif
5515 #ifdef FEAT_LISP
5516     check_string_option(&buf->b_p_lw);
5517 #endif
5518     check_string_option(&buf->b_p_bkc);
5519 }
5520 
5521 /*
5522  * Free the string allocated for an option.
5523  * Checks for the string being empty_option. This may happen if we're out of
5524  * memory, vim_strsave() returned NULL, which was replaced by empty_option by
5525  * check_options().
5526  * Does NOT check for P_ALLOCED flag!
5527  */
5528     void
5529 free_string_option(char_u *p)
5530 {
5531     if (p != empty_option)
5532 	vim_free(p);
5533 }
5534 
5535     void
5536 clear_string_option(char_u **pp)
5537 {
5538     if (*pp != empty_option)
5539 	vim_free(*pp);
5540     *pp = empty_option;
5541 }
5542 
5543     static void
5544 check_string_option(char_u **pp)
5545 {
5546     if (*pp == NULL)
5547 	*pp = empty_option;
5548 }
5549 
5550 /*
5551  * Mark a terminal option as allocated, found by a pointer into term_strings[].
5552  */
5553     void
5554 set_term_option_alloced(char_u **p)
5555 {
5556     int		opt_idx;
5557 
5558     for (opt_idx = 1; options[opt_idx].fullname != NULL; opt_idx++)
5559 	if (options[opt_idx].var == (char_u *)p)
5560 	{
5561 	    options[opt_idx].flags |= P_ALLOCED;
5562 	    return;
5563 	}
5564     return; /* cannot happen: didn't find it! */
5565 }
5566 
5567 #if defined(FEAT_EVAL) || defined(PROTO)
5568 /*
5569  * Return TRUE when option "opt" was set from a modeline or in secure mode.
5570  * Return FALSE when it wasn't.
5571  * Return -1 for an unknown option.
5572  */
5573     int
5574 was_set_insecurely(char_u *opt, int opt_flags)
5575 {
5576     int	    idx = findoption(opt);
5577     long_u  *flagp;
5578 
5579     if (idx >= 0)
5580     {
5581 	flagp = insecure_flag(idx, opt_flags);
5582 	return (*flagp & P_INSECURE) != 0;
5583     }
5584     EMSG2(_(e_intern2), "was_set_insecurely()");
5585     return -1;
5586 }
5587 
5588 /*
5589  * Get a pointer to the flags used for the P_INSECURE flag of option
5590  * "opt_idx".  For some local options a local flags field is used.
5591  */
5592     static long_u *
5593 insecure_flag(int opt_idx, int opt_flags)
5594 {
5595     if (opt_flags & OPT_LOCAL)
5596 	switch ((int)options[opt_idx].indir)
5597 	{
5598 #ifdef FEAT_STL_OPT
5599 	    case PV_STL:	return &curwin->w_p_stl_flags;
5600 #endif
5601 #ifdef FEAT_EVAL
5602 # ifdef FEAT_FOLDING
5603 	    case PV_FDE:	return &curwin->w_p_fde_flags;
5604 	    case PV_FDT:	return &curwin->w_p_fdt_flags;
5605 # endif
5606 # ifdef FEAT_BEVAL
5607 	    case PV_BEXPR:	return &curbuf->b_p_bexpr_flags;
5608 # endif
5609 # if defined(FEAT_CINDENT)
5610 	    case PV_INDE:	return &curbuf->b_p_inde_flags;
5611 # endif
5612 	    case PV_FEX:	return &curbuf->b_p_fex_flags;
5613 # ifdef FEAT_FIND_ID
5614 	    case PV_INEX:	return &curbuf->b_p_inex_flags;
5615 # endif
5616 #endif
5617 	}
5618 
5619     /* Nothing special, return global flags field. */
5620     return &options[opt_idx].flags;
5621 }
5622 #endif
5623 
5624 #ifdef FEAT_TITLE
5625 static void redraw_titles(void);
5626 
5627 /*
5628  * Redraw the window title and/or tab page text later.
5629  */
5630 static void redraw_titles(void)
5631 {
5632     need_maketitle = TRUE;
5633 # ifdef FEAT_WINDOWS
5634     redraw_tabline = TRUE;
5635 # endif
5636 }
5637 #endif
5638 
5639 /*
5640  * Set a string option to a new value (without checking the effect).
5641  * The string is copied into allocated memory.
5642  * if ("opt_idx" == -1) "name" is used, otherwise "opt_idx" is used.
5643  * When "set_sid" is zero set the scriptID to current_SID.  When "set_sid" is
5644  * SID_NONE don't set the scriptID.  Otherwise set the scriptID to "set_sid".
5645  */
5646     void
5647 set_string_option_direct(
5648     char_u	*name,
5649     int		opt_idx,
5650     char_u	*val,
5651     int		opt_flags,	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
5652     int		set_sid UNUSED)
5653 {
5654     char_u	*s;
5655     char_u	**varp;
5656     int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
5657     int		idx = opt_idx;
5658 
5659     if (idx == -1)		/* use name */
5660     {
5661 	idx = findoption(name);
5662 	if (idx < 0)	/* not found (should not happen) */
5663 	{
5664 	    EMSG2(_(e_intern2), "set_string_option_direct()");
5665 	    EMSG2(_("For option %s"), name);
5666 	    return;
5667 	}
5668     }
5669 
5670     if (options[idx].var == NULL)	/* can't set hidden option */
5671 	return;
5672 
5673     s = vim_strsave(val);
5674     if (s != NULL)
5675     {
5676 	varp = (char_u **)get_varp_scope(&(options[idx]),
5677 					       both ? OPT_LOCAL : opt_flags);
5678 	if ((opt_flags & OPT_FREE) && (options[idx].flags & P_ALLOCED))
5679 	    free_string_option(*varp);
5680 	*varp = s;
5681 
5682 	/* For buffer/window local option may also set the global value. */
5683 	if (both)
5684 	    set_string_option_global(idx, varp);
5685 
5686 	options[idx].flags |= P_ALLOCED;
5687 
5688 	/* When setting both values of a global option with a local value,
5689 	 * make the local value empty, so that the global value is used. */
5690 	if (((int)options[idx].indir & PV_BOTH) && both)
5691 	{
5692 	    free_string_option(*varp);
5693 	    *varp = empty_option;
5694 	}
5695 # ifdef FEAT_EVAL
5696 	if (set_sid != SID_NONE)
5697 	    set_option_scriptID_idx(idx, opt_flags,
5698 					set_sid == 0 ? current_SID : set_sid);
5699 # endif
5700     }
5701 }
5702 
5703 /*
5704  * Set global value for string option when it's a local option.
5705  */
5706     static void
5707 set_string_option_global(
5708     int		opt_idx,	/* option index */
5709     char_u	**varp)		/* pointer to option variable */
5710 {
5711     char_u	**p, *s;
5712 
5713     /* the global value is always allocated */
5714     if (options[opt_idx].var == VAR_WIN)
5715 	p = (char_u **)GLOBAL_WO(varp);
5716     else
5717 	p = (char_u **)options[opt_idx].var;
5718     if (options[opt_idx].indir != PV_NONE
5719 	    && p != varp
5720 	    && (s = vim_strsave(*varp)) != NULL)
5721     {
5722 	free_string_option(*p);
5723 	*p = s;
5724     }
5725 }
5726 
5727 /*
5728  * Set a string option to a new value, and handle the effects.
5729  *
5730  * Returns NULL on success or error message on error.
5731  */
5732     static char_u *
5733 set_string_option(
5734     int		opt_idx,
5735     char_u	*value,
5736     int		opt_flags)	/* OPT_LOCAL and/or OPT_GLOBAL */
5737 {
5738     char_u	*s;
5739     char_u	**varp;
5740     char_u	*oldval;
5741 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
5742     char_u	*saved_oldval = NULL;
5743 #endif
5744     char_u	*r = NULL;
5745 
5746     if (options[opt_idx].var == NULL)	/* don't set hidden option */
5747 	return NULL;
5748 
5749     s = vim_strsave(value);
5750     if (s != NULL)
5751     {
5752 	varp = (char_u **)get_varp_scope(&(options[opt_idx]),
5753 		(opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
5754 		    ? (((int)options[opt_idx].indir & PV_BOTH)
5755 			? OPT_GLOBAL : OPT_LOCAL)
5756 		    : opt_flags);
5757 	oldval = *varp;
5758 	*varp = s;
5759 
5760 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
5761 	if (!starting
5762 # ifdef FEAT_CRYPT
5763 		&& options[opt_idx].indir != PV_KEY
5764 # endif
5765 		)
5766 	    saved_oldval = vim_strsave(oldval);
5767 #endif
5768 	if ((r = did_set_string_option(opt_idx, varp, TRUE, oldval, NULL,
5769 							   opt_flags)) == NULL)
5770 	    did_set_option(opt_idx, opt_flags, TRUE);
5771 
5772 	/* call autocomamnd after handling side effects */
5773 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
5774 	if (saved_oldval != NULL)
5775 	{
5776 	    char_u buf_type[7];
5777 	    sprintf((char *)buf_type, "%s",
5778 		(opt_flags & OPT_LOCAL) ? "local" : "global");
5779 	    set_vim_var_string(VV_OPTION_NEW, *varp, -1);
5780 	    set_vim_var_string(VV_OPTION_OLD, saved_oldval, -1);
5781 	    set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
5782 	    apply_autocmds(EVENT_OPTIONSET, (char_u *)options[opt_idx].fullname, NULL, FALSE, NULL);
5783 	    reset_v_option_vars();
5784 	    vim_free(saved_oldval);
5785 	}
5786 #endif
5787     }
5788     return r;
5789 }
5790 
5791 /*
5792  * Handle string options that need some action to perform when changed.
5793  * Returns NULL for success, or an error message for an error.
5794  */
5795     static char_u *
5796 did_set_string_option(
5797     int		opt_idx,		/* index in options[] table */
5798     char_u	**varp,			/* pointer to the option variable */
5799     int		new_value_alloced,	/* new value was allocated */
5800     char_u	*oldval,		/* previous value of the option */
5801     char_u	*errbuf,		/* buffer for errors, or NULL */
5802     int		opt_flags)		/* OPT_LOCAL and/or OPT_GLOBAL */
5803 {
5804     char_u	*errmsg = NULL;
5805     char_u	*s, *p;
5806     int		did_chartab = FALSE;
5807     char_u	**gvarp;
5808     long_u	free_oldval = (options[opt_idx].flags & P_ALLOCED);
5809 #ifdef FEAT_GUI
5810     /* set when changing an option that only requires a redraw in the GUI */
5811     int		redraw_gui_only = FALSE;
5812 #endif
5813 
5814     /* Get the global option to compare with, otherwise we would have to check
5815      * two values for all local options. */
5816     gvarp = (char_u **)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL);
5817 
5818     /* Disallow changing some options from secure mode */
5819     if ((secure
5820 #ifdef HAVE_SANDBOX
5821 		|| sandbox != 0
5822 #endif
5823 		) && (options[opt_idx].flags & P_SECURE))
5824     {
5825 	errmsg = e_secure;
5826     }
5827 
5828     /* Check for a "normal" file name in some options.  Disallow a path
5829      * separator (slash and/or backslash), wildcards and characters that are
5830      * often illegal in a file name. */
5831     else if ((options[opt_idx].flags & P_NFNAME)
5832 			 && vim_strpbrk(*varp, (char_u *)"/\\*?[|<>") != NULL)
5833     {
5834 	errmsg = e_invarg;
5835     }
5836 
5837     /* 'term' */
5838     else if (varp == &T_NAME)
5839     {
5840 	if (T_NAME[0] == NUL)
5841 	    errmsg = (char_u *)N_("E529: Cannot set 'term' to empty string");
5842 #ifdef FEAT_GUI
5843 	if (gui.in_use)
5844 	    errmsg = (char_u *)N_("E530: Cannot change term in GUI");
5845 	else if (term_is_gui(T_NAME))
5846 	    errmsg = (char_u *)N_("E531: Use \":gui\" to start the GUI");
5847 #endif
5848 	else if (set_termname(T_NAME) == FAIL)
5849 	    errmsg = (char_u *)N_("E522: Not found in termcap");
5850 	else
5851 	    /* Screen colors may have changed. */
5852 	    redraw_later_clear();
5853     }
5854 
5855     /* 'backupcopy' */
5856     else if (gvarp == &p_bkc)
5857     {
5858 	char_u		*bkc = p_bkc;
5859 	unsigned int	*flags = &bkc_flags;
5860 
5861 	if (opt_flags & OPT_LOCAL)
5862 	{
5863 	    bkc = curbuf->b_p_bkc;
5864 	    flags = &curbuf->b_bkc_flags;
5865 	}
5866 
5867 	if ((opt_flags & OPT_LOCAL) && *bkc == NUL)
5868 	    /* make the local value empty: use the global value */
5869 	    *flags = 0;
5870 	else
5871 	{
5872 	    if (opt_strings_flags(bkc, p_bkc_values, flags, TRUE) != OK)
5873 		errmsg = e_invarg;
5874 	    if ((((int)*flags & BKC_AUTO) != 0)
5875 		    + (((int)*flags & BKC_YES) != 0)
5876 		    + (((int)*flags & BKC_NO) != 0) != 1)
5877 	    {
5878 		/* Must have exactly one of "auto", "yes"  and "no". */
5879 		(void)opt_strings_flags(oldval, p_bkc_values, flags, TRUE);
5880 		errmsg = e_invarg;
5881 	    }
5882 	}
5883     }
5884 
5885     /* 'backupext' and 'patchmode' */
5886     else if (varp == &p_bex || varp == &p_pm)
5887     {
5888 	if (STRCMP(*p_bex == '.' ? p_bex + 1 : p_bex,
5889 		     *p_pm == '.' ? p_pm + 1 : p_pm) == 0)
5890 	    errmsg = (char_u *)N_("E589: 'backupext' and 'patchmode' are equal");
5891     }
5892 #ifdef FEAT_LINEBREAK
5893     /* 'breakindentopt' */
5894     else if (varp == &curwin->w_p_briopt)
5895     {
5896 	if (briopt_check(curwin) == FAIL)
5897 	    errmsg = e_invarg;
5898     }
5899 #endif
5900 
5901     /*
5902      * 'isident', 'iskeyword', 'isprint or 'isfname' option: refill g_chartab[]
5903      * If the new option is invalid, use old value.  'lisp' option: refill
5904      * g_chartab[] for '-' char
5905      */
5906     else if (  varp == &p_isi
5907 	    || varp == &(curbuf->b_p_isk)
5908 	    || varp == &p_isp
5909 	    || varp == &p_isf)
5910     {
5911 	if (init_chartab() == FAIL)
5912 	{
5913 	    did_chartab = TRUE;	    /* need to restore it below */
5914 	    errmsg = e_invarg;	    /* error in value */
5915 	}
5916     }
5917 
5918     /* 'helpfile' */
5919     else if (varp == &p_hf)
5920     {
5921 	/* May compute new values for $VIM and $VIMRUNTIME */
5922 	if (didset_vim)
5923 	{
5924 	    vim_setenv((char_u *)"VIM", (char_u *)"");
5925 	    didset_vim = FALSE;
5926 	}
5927 	if (didset_vimruntime)
5928 	{
5929 	    vim_setenv((char_u *)"VIMRUNTIME", (char_u *)"");
5930 	    didset_vimruntime = FALSE;
5931 	}
5932     }
5933 
5934 #ifdef FEAT_SYN_HL
5935     /* 'colorcolumn' */
5936     else if (varp == &curwin->w_p_cc)
5937 	errmsg = check_colorcolumn(curwin);
5938 #endif
5939 
5940 #ifdef FEAT_MULTI_LANG
5941     /* 'helplang' */
5942     else if (varp == &p_hlg)
5943     {
5944 	/* Check for "", "ab", "ab,cd", etc. */
5945 	for (s = p_hlg; *s != NUL; s += 3)
5946 	{
5947 	    if (s[1] == NUL || ((s[2] != ',' || s[3] == NUL) && s[2] != NUL))
5948 	    {
5949 		errmsg = e_invarg;
5950 		break;
5951 	    }
5952 	    if (s[2] == NUL)
5953 		break;
5954 	}
5955     }
5956 #endif
5957 
5958     /* 'highlight' */
5959     else if (varp == &p_hl)
5960     {
5961 	if (highlight_changed() == FAIL)
5962 	    errmsg = e_invarg;	/* invalid flags */
5963     }
5964 
5965     /* 'nrformats' */
5966     else if (gvarp == &p_nf)
5967     {
5968 	if (check_opt_strings(*varp, p_nf_values, TRUE) != OK)
5969 	    errmsg = e_invarg;
5970     }
5971 
5972 #ifdef FEAT_SESSION
5973     /* 'sessionoptions' */
5974     else if (varp == &p_ssop)
5975     {
5976 	if (opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE) != OK)
5977 	    errmsg = e_invarg;
5978 	if ((ssop_flags & SSOP_CURDIR) && (ssop_flags & SSOP_SESDIR))
5979 	{
5980 	    /* Don't allow both "sesdir" and "curdir". */
5981 	    (void)opt_strings_flags(oldval, p_ssop_values, &ssop_flags, TRUE);
5982 	    errmsg = e_invarg;
5983 	}
5984     }
5985     /* 'viewoptions' */
5986     else if (varp == &p_vop)
5987     {
5988 	if (opt_strings_flags(p_vop, p_ssop_values, &vop_flags, TRUE) != OK)
5989 	    errmsg = e_invarg;
5990     }
5991 #endif
5992 
5993     /* 'scrollopt' */
5994 #ifdef FEAT_SCROLLBIND
5995     else if (varp == &p_sbo)
5996     {
5997 	if (check_opt_strings(p_sbo, p_scbopt_values, TRUE) != OK)
5998 	    errmsg = e_invarg;
5999     }
6000 #endif
6001 
6002     /* 'ambiwidth' */
6003 #ifdef FEAT_MBYTE
6004     else if (varp == &p_ambw || varp == &p_emoji)
6005     {
6006 	if (check_opt_strings(p_ambw, p_ambw_values, FALSE) != OK)
6007 	    errmsg = e_invarg;
6008 	else if (set_chars_option(&p_lcs) != NULL)
6009 	    errmsg = (char_u *)_("E834: Conflicts with value of 'listchars'");
6010 # if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
6011 	else if (set_chars_option(&p_fcs) != NULL)
6012 	    errmsg = (char_u *)_("E835: Conflicts with value of 'fillchars'");
6013 # endif
6014     }
6015 #endif
6016 
6017     /* 'background' */
6018     else if (varp == &p_bg)
6019     {
6020 	if (check_opt_strings(p_bg, p_bg_values, FALSE) == OK)
6021 	{
6022 #ifdef FEAT_EVAL
6023 	    int dark = (*p_bg == 'd');
6024 #endif
6025 
6026 	    init_highlight(FALSE, FALSE);
6027 
6028 #ifdef FEAT_EVAL
6029 	    if (dark != (*p_bg == 'd')
6030 			  && get_var_value((char_u *)"g:colors_name") != NULL)
6031 	    {
6032 		/* The color scheme must have set 'background' back to another
6033 		 * value, that's not what we want here.  Disable the color
6034 		 * scheme and set the colors again. */
6035 		do_unlet((char_u *)"g:colors_name", TRUE);
6036 		free_string_option(p_bg);
6037 		p_bg = vim_strsave((char_u *)(dark ? "dark" : "light"));
6038 		check_string_option(&p_bg);
6039 		init_highlight(FALSE, FALSE);
6040 	    }
6041 #endif
6042 	}
6043 	else
6044 	    errmsg = e_invarg;
6045     }
6046 
6047     /* 'wildmode' */
6048     else if (varp == &p_wim)
6049     {
6050 	if (check_opt_wim() == FAIL)
6051 	    errmsg = e_invarg;
6052     }
6053 
6054 #ifdef FEAT_CMDL_COMPL
6055     /* 'wildoptions' */
6056     else if (varp == &p_wop)
6057     {
6058 	if (check_opt_strings(p_wop, p_wop_values, TRUE) != OK)
6059 	    errmsg = e_invarg;
6060     }
6061 #endif
6062 
6063 #ifdef FEAT_WAK
6064     /* 'winaltkeys' */
6065     else if (varp == &p_wak)
6066     {
6067 	if (*p_wak == NUL
6068 		|| check_opt_strings(p_wak, p_wak_values, FALSE) != OK)
6069 	    errmsg = e_invarg;
6070 # ifdef FEAT_MENU
6071 #  ifdef FEAT_GUI_MOTIF
6072 	else if (gui.in_use)
6073 	    gui_motif_set_mnemonics(p_wak[0] == 'y' || p_wak[0] == 'm');
6074 #  else
6075 #   ifdef FEAT_GUI_GTK
6076 	else if (gui.in_use)
6077 	    gui_gtk_set_mnemonics(p_wak[0] == 'y' || p_wak[0] == 'm');
6078 #   endif
6079 #  endif
6080 # endif
6081     }
6082 #endif
6083 
6084 #ifdef FEAT_AUTOCMD
6085     /* 'eventignore' */
6086     else if (varp == &p_ei)
6087     {
6088 	if (check_ei() == FAIL)
6089 	    errmsg = e_invarg;
6090     }
6091 #endif
6092 
6093 #ifdef FEAT_MBYTE
6094     /* 'encoding' and 'fileencoding' */
6095     else if (varp == &p_enc || gvarp == &p_fenc || varp == &p_tenc)
6096     {
6097 	if (gvarp == &p_fenc)
6098 	{
6099 	    if (!curbuf->b_p_ma && opt_flags != OPT_GLOBAL)
6100 		errmsg = e_modifiable;
6101 	    else if (vim_strchr(*varp, ',') != NULL)
6102 		/* No comma allowed in 'fileencoding'; catches confusing it
6103 		 * with 'fileencodings'. */
6104 		errmsg = e_invarg;
6105 	    else
6106 	    {
6107 # ifdef FEAT_TITLE
6108 		/* May show a "+" in the title now. */
6109 		redraw_titles();
6110 # endif
6111 		/* Add 'fileencoding' to the swap file. */
6112 		ml_setflags(curbuf);
6113 	    }
6114 	}
6115 	if (errmsg == NULL)
6116 	{
6117 	    /* canonize the value, so that STRCMP() can be used on it */
6118 	    p = enc_canonize(*varp);
6119 	    if (p != NULL)
6120 	    {
6121 		vim_free(*varp);
6122 		*varp = p;
6123 	    }
6124 	    if (varp == &p_enc)
6125 	    {
6126 		errmsg = mb_init();
6127 # ifdef FEAT_TITLE
6128 		redraw_titles();
6129 # endif
6130 	    }
6131 	}
6132 
6133 # if defined(FEAT_GUI_GTK)
6134 	if (errmsg == NULL && varp == &p_tenc && gui.in_use)
6135 	{
6136 	    /* GTK+ 2 uses only a single encoding, and that is UTF-8. */
6137 	    if (STRCMP(p_tenc, "utf-8") != 0)
6138 		errmsg = (char_u *)N_("E617: Cannot be changed in the GTK+ 2 GUI");
6139 	}
6140 # endif
6141 
6142 	if (errmsg == NULL)
6143 	{
6144 # ifdef FEAT_KEYMAP
6145 	    /* When 'keymap' is used and 'encoding' changes, reload the keymap
6146 	     * (with another encoding). */
6147 	    if (varp == &p_enc && *curbuf->b_p_keymap != NUL)
6148 		(void)keymap_init();
6149 # endif
6150 
6151 	    /* When 'termencoding' is not empty and 'encoding' changes or when
6152 	     * 'termencoding' changes, need to setup for keyboard input and
6153 	     * display output conversion. */
6154 	    if (((varp == &p_enc && *p_tenc != NUL) || varp == &p_tenc))
6155 	    {
6156 		convert_setup(&input_conv, p_tenc, p_enc);
6157 		convert_setup(&output_conv, p_enc, p_tenc);
6158 	    }
6159 
6160 # if defined(WIN3264) && defined(FEAT_MBYTE)
6161 	    /* $HOME may have characters in active code page. */
6162 	    if (varp == &p_enc)
6163 		init_homedir();
6164 # endif
6165 	}
6166     }
6167 #endif
6168 
6169 #if defined(FEAT_POSTSCRIPT)
6170     else if (varp == &p_penc)
6171     {
6172 	/* Canonize printencoding if VIM standard one */
6173 	p = enc_canonize(p_penc);
6174 	if (p != NULL)
6175 	{
6176 	    vim_free(p_penc);
6177 	    p_penc = p;
6178 	}
6179 	else
6180 	{
6181 	    /* Ensure lower case and '-' for '_' */
6182 	    for (s = p_penc; *s != NUL; s++)
6183 	    {
6184 		if (*s == '_')
6185 		    *s = '-';
6186 		else
6187 		    *s = TOLOWER_ASC(*s);
6188 	    }
6189 	}
6190     }
6191 #endif
6192 
6193 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
6194     else if (varp == &p_imak)
6195     {
6196 	if (gui.in_use && !im_xim_isvalid_imactivate())
6197 	    errmsg = e_invarg;
6198     }
6199 #endif
6200 
6201 #ifdef FEAT_KEYMAP
6202     else if (varp == &curbuf->b_p_keymap)
6203     {
6204 	/* load or unload key mapping tables */
6205 	errmsg = keymap_init();
6206 
6207 	if (errmsg == NULL)
6208 	{
6209 	    if (*curbuf->b_p_keymap != NUL)
6210 	    {
6211 		/* Installed a new keymap, switch on using it. */
6212 		curbuf->b_p_iminsert = B_IMODE_LMAP;
6213 		if (curbuf->b_p_imsearch != B_IMODE_USE_INSERT)
6214 		    curbuf->b_p_imsearch = B_IMODE_LMAP;
6215 	    }
6216 	    else
6217 	    {
6218 		/* Cleared the keymap, may reset 'iminsert' and 'imsearch'. */
6219 		if (curbuf->b_p_iminsert == B_IMODE_LMAP)
6220 		    curbuf->b_p_iminsert = B_IMODE_NONE;
6221 		if (curbuf->b_p_imsearch == B_IMODE_LMAP)
6222 		    curbuf->b_p_imsearch = B_IMODE_USE_INSERT;
6223 	    }
6224 	    if ((opt_flags & OPT_LOCAL) == 0)
6225 	    {
6226 		set_iminsert_global();
6227 		set_imsearch_global();
6228 	    }
6229 # ifdef FEAT_WINDOWS
6230 	    status_redraw_curbuf();
6231 # endif
6232 	}
6233     }
6234 #endif
6235 
6236     /* 'fileformat' */
6237     else if (gvarp == &p_ff)
6238     {
6239 	if (!curbuf->b_p_ma && !(opt_flags & OPT_GLOBAL))
6240 	    errmsg = e_modifiable;
6241 	else if (check_opt_strings(*varp, p_ff_values, FALSE) != OK)
6242 	    errmsg = e_invarg;
6243 	else
6244 	{
6245 	    /* may also change 'textmode' */
6246 	    if (get_fileformat(curbuf) == EOL_DOS)
6247 		curbuf->b_p_tx = TRUE;
6248 	    else
6249 		curbuf->b_p_tx = FALSE;
6250 #ifdef FEAT_TITLE
6251 	    redraw_titles();
6252 #endif
6253 	    /* update flag in swap file */
6254 	    ml_setflags(curbuf);
6255 	    /* Redraw needed when switching to/from "mac": a CR in the text
6256 	     * will be displayed differently. */
6257 	    if (get_fileformat(curbuf) == EOL_MAC || *oldval == 'm')
6258 		redraw_curbuf_later(NOT_VALID);
6259 	}
6260     }
6261 
6262     /* 'fileformats' */
6263     else if (varp == &p_ffs)
6264     {
6265 	if (check_opt_strings(p_ffs, p_ff_values, TRUE) != OK)
6266 	    errmsg = e_invarg;
6267 	else
6268 	{
6269 	    /* also change 'textauto' */
6270 	    if (*p_ffs == NUL)
6271 		p_ta = FALSE;
6272 	    else
6273 		p_ta = TRUE;
6274 	}
6275     }
6276 
6277 #if defined(FEAT_CRYPT)
6278     /* 'cryptkey' */
6279     else if (gvarp == &p_key)
6280     {
6281 # if defined(FEAT_CMDHIST)
6282 	/* Make sure the ":set" command doesn't show the new value in the
6283 	 * history. */
6284 	remove_key_from_history();
6285 # endif
6286 	if (STRCMP(curbuf->b_p_key, oldval) != 0)
6287 	    /* Need to update the swapfile. */
6288 	    ml_set_crypt_key(curbuf, oldval,
6289 			      *curbuf->b_p_cm == NUL ? p_cm : curbuf->b_p_cm);
6290     }
6291 
6292     else if (gvarp == &p_cm)
6293     {
6294 	if (opt_flags & OPT_LOCAL)
6295 	    p = curbuf->b_p_cm;
6296 	else
6297 	    p = p_cm;
6298 	if (check_opt_strings(p, p_cm_values, TRUE) != OK)
6299 	    errmsg = e_invarg;
6300 	else if (crypt_self_test() == FAIL)
6301 	    errmsg = e_invarg;
6302 	else
6303 	{
6304 	    /* When setting the global value to empty, make it "zip". */
6305 	    if (*p_cm == NUL)
6306 	    {
6307 		if (new_value_alloced)
6308 		    free_string_option(p_cm);
6309 		p_cm = vim_strsave((char_u *)"zip");
6310 		new_value_alloced = TRUE;
6311 	    }
6312 	    /* When using ":set cm=name" the local value is going to be empty.
6313 	     * Do that here, otherwise the crypt functions will still use the
6314 	     * local value. */
6315 	    if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
6316 	    {
6317 		free_string_option(curbuf->b_p_cm);
6318 		curbuf->b_p_cm = empty_option;
6319 	    }
6320 
6321 	    /* Need to update the swapfile when the effective method changed.
6322 	     * Set "s" to the effective old value, "p" to the effective new
6323 	     * method and compare. */
6324 	    if ((opt_flags & OPT_LOCAL) && *oldval == NUL)
6325 		s = p_cm;  /* was previously using the global value */
6326 	    else
6327 		s = oldval;
6328 	    if (*curbuf->b_p_cm == NUL)
6329 		p = p_cm;  /* is now using the global value */
6330 	    else
6331 		p = curbuf->b_p_cm;
6332 	    if (STRCMP(s, p) != 0)
6333 		ml_set_crypt_key(curbuf, curbuf->b_p_key, s);
6334 
6335 	    /* If the global value changes need to update the swapfile for all
6336 	     * buffers using that value. */
6337 	    if ((opt_flags & OPT_GLOBAL) && STRCMP(p_cm, oldval) != 0)
6338 	    {
6339 		buf_T	*buf;
6340 
6341 		for (buf = firstbuf; buf != NULL; buf = buf->b_next)
6342 		    if (buf != curbuf && *buf->b_p_cm == NUL)
6343 			ml_set_crypt_key(buf, buf->b_p_key, oldval);
6344 	    }
6345 	}
6346     }
6347 #endif
6348 
6349     /* 'matchpairs' */
6350     else if (gvarp == &p_mps)
6351     {
6352 #ifdef FEAT_MBYTE
6353 	if (has_mbyte)
6354 	{
6355 	    for (p = *varp; *p != NUL; ++p)
6356 	    {
6357 		int x2 = -1;
6358 		int x3 = -1;
6359 
6360 		if (*p != NUL)
6361 		    p += mb_ptr2len(p);
6362 		if (*p != NUL)
6363 		    x2 = *p++;
6364 		if (*p != NUL)
6365 		{
6366 		    x3 = mb_ptr2char(p);
6367 		    p += mb_ptr2len(p);
6368 		}
6369 		if (x2 != ':' || x3 == -1 || (*p != NUL && *p != ','))
6370 		{
6371 		    errmsg = e_invarg;
6372 		    break;
6373 		}
6374 		if (*p == NUL)
6375 		    break;
6376 	    }
6377 	}
6378 	else
6379 #endif
6380 	{
6381 	    /* Check for "x:y,x:y" */
6382 	    for (p = *varp; *p != NUL; p += 4)
6383 	    {
6384 		if (p[1] != ':' || p[2] == NUL || (p[3] != NUL && p[3] != ','))
6385 		{
6386 		    errmsg = e_invarg;
6387 		    break;
6388 		}
6389 		if (p[3] == NUL)
6390 		    break;
6391 	    }
6392 	}
6393     }
6394 
6395 #ifdef FEAT_COMMENTS
6396     /* 'comments' */
6397     else if (gvarp == &p_com)
6398     {
6399 	for (s = *varp; *s; )
6400 	{
6401 	    while (*s && *s != ':')
6402 	    {
6403 		if (vim_strchr((char_u *)COM_ALL, *s) == NULL
6404 					     && !VIM_ISDIGIT(*s) && *s != '-')
6405 		{
6406 		    errmsg = illegal_char(errbuf, *s);
6407 		    break;
6408 		}
6409 		++s;
6410 	    }
6411 	    if (*s++ == NUL)
6412 		errmsg = (char_u *)N_("E524: Missing colon");
6413 	    else if (*s == ',' || *s == NUL)
6414 		errmsg = (char_u *)N_("E525: Zero length string");
6415 	    if (errmsg != NULL)
6416 		break;
6417 	    while (*s && *s != ',')
6418 	    {
6419 		if (*s == '\\' && s[1] != NUL)
6420 		    ++s;
6421 		++s;
6422 	    }
6423 	    s = skip_to_option_part(s);
6424 	}
6425     }
6426 #endif
6427 
6428     /* 'listchars' */
6429     else if (varp == &p_lcs)
6430     {
6431 	errmsg = set_chars_option(varp);
6432     }
6433 
6434 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
6435     /* 'fillchars' */
6436     else if (varp == &p_fcs)
6437     {
6438 	errmsg = set_chars_option(varp);
6439     }
6440 #endif
6441 
6442 #ifdef FEAT_CMDWIN
6443     /* 'cedit' */
6444     else if (varp == &p_cedit)
6445     {
6446 	errmsg = check_cedit();
6447     }
6448 #endif
6449 
6450     /* 'verbosefile' */
6451     else if (varp == &p_vfile)
6452     {
6453 	verbose_stop();
6454 	if (*p_vfile != NUL && verbose_open() == FAIL)
6455 	    errmsg = e_invarg;
6456     }
6457 
6458 #ifdef FEAT_VIMINFO
6459     /* 'viminfo' */
6460     else if (varp == &p_viminfo)
6461     {
6462 	for (s = p_viminfo; *s;)
6463 	{
6464 	    /* Check it's a valid character */
6465 	    if (vim_strchr((char_u *)"!\"%'/:<@cfhnrs", *s) == NULL)
6466 	    {
6467 		errmsg = illegal_char(errbuf, *s);
6468 		break;
6469 	    }
6470 	    if (*s == 'n')	/* name is always last one */
6471 	    {
6472 		break;
6473 	    }
6474 	    else if (*s == 'r') /* skip until next ',' */
6475 	    {
6476 		while (*++s && *s != ',')
6477 		    ;
6478 	    }
6479 	    else if (*s == '%')
6480 	    {
6481 		/* optional number */
6482 		while (vim_isdigit(*++s))
6483 		    ;
6484 	    }
6485 	    else if (*s == '!' || *s == 'h' || *s == 'c')
6486 		++s;		/* no extra chars */
6487 	    else		/* must have a number */
6488 	    {
6489 		while (vim_isdigit(*++s))
6490 		    ;
6491 
6492 		if (!VIM_ISDIGIT(*(s - 1)))
6493 		{
6494 		    if (errbuf != NULL)
6495 		    {
6496 			sprintf((char *)errbuf,
6497 					 _("E526: Missing number after <%s>"),
6498 						    transchar_byte(*(s - 1)));
6499 			errmsg = errbuf;
6500 		    }
6501 		    else
6502 			errmsg = (char_u *)"";
6503 		    break;
6504 		}
6505 	    }
6506 	    if (*s == ',')
6507 		++s;
6508 	    else if (*s)
6509 	    {
6510 		if (errbuf != NULL)
6511 		    errmsg = (char_u *)N_("E527: Missing comma");
6512 		else
6513 		    errmsg = (char_u *)"";
6514 		break;
6515 	    }
6516 	}
6517 	if (*p_viminfo && errmsg == NULL && get_viminfo_parameter('\'') < 0)
6518 	    errmsg = (char_u *)N_("E528: Must specify a ' value");
6519     }
6520 #endif /* FEAT_VIMINFO */
6521 
6522     /* terminal options */
6523     else if (istermoption(&options[opt_idx]) && full_screen)
6524     {
6525 	/* ":set t_Co=0" and ":set t_Co=1" do ":set t_Co=" */
6526 	if (varp == &T_CCO)
6527 	{
6528 	    int colors = atoi((char *)T_CCO);
6529 
6530 	    /* Only reinitialize colors if t_Co value has really changed to
6531 	     * avoid expensive reload of colorscheme if t_Co is set to the
6532 	     * same value multiple times. */
6533 	    if (colors != t_colors)
6534 	    {
6535 		t_colors = colors;
6536 		if (t_colors <= 1)
6537 		{
6538 		    if (new_value_alloced)
6539 			vim_free(T_CCO);
6540 		    T_CCO = empty_option;
6541 		}
6542 		/* We now have a different color setup, initialize it again. */
6543 		init_highlight(TRUE, FALSE);
6544 	    }
6545 	}
6546 	ttest(FALSE);
6547 	if (varp == &T_ME)
6548 	{
6549 	    out_str(T_ME);
6550 	    redraw_later(CLEAR);
6551 #if defined(WIN3264) && !defined(FEAT_GUI_W32)
6552 	    /* Since t_me has been set, this probably means that the user
6553 	     * wants to use this as default colors.  Need to reset default
6554 	     * background/foreground colors. */
6555 	    mch_set_normal_colors();
6556 #endif
6557 	}
6558     }
6559 
6560 #ifdef FEAT_LINEBREAK
6561     /* 'showbreak' */
6562     else if (varp == &p_sbr)
6563     {
6564 	for (s = p_sbr; *s; )
6565 	{
6566 	    if (ptr2cells(s) != 1)
6567 		errmsg = (char_u *)N_("E595: contains unprintable or wide character");
6568 	    mb_ptr_adv(s);
6569 	}
6570     }
6571 #endif
6572 
6573 #ifdef FEAT_GUI
6574     /* 'guifont' */
6575     else if (varp == &p_guifont)
6576     {
6577 	if (gui.in_use)
6578 	{
6579 	    p = p_guifont;
6580 # if defined(FEAT_GUI_GTK)
6581 	    /*
6582 	     * Put up a font dialog and let the user select a new value.
6583 	     * If this is cancelled go back to the old value but don't
6584 	     * give an error message.
6585 	     */
6586 	    if (STRCMP(p, "*") == 0)
6587 	    {
6588 		p = gui_mch_font_dialog(oldval);
6589 
6590 		if (new_value_alloced)
6591 		    free_string_option(p_guifont);
6592 
6593 		p_guifont = (p != NULL) ? p : vim_strsave(oldval);
6594 		new_value_alloced = TRUE;
6595 	    }
6596 # endif
6597 	    if (p != NULL && gui_init_font(p_guifont, FALSE) != OK)
6598 	    {
6599 # if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_PHOTON)
6600 		if (STRCMP(p_guifont, "*") == 0)
6601 		{
6602 		    /* Dialog was cancelled: Keep the old value without giving
6603 		     * an error message. */
6604 		    if (new_value_alloced)
6605 			free_string_option(p_guifont);
6606 		    p_guifont = vim_strsave(oldval);
6607 		    new_value_alloced = TRUE;
6608 		}
6609 		else
6610 # endif
6611 		    errmsg = (char_u *)N_("E596: Invalid font(s)");
6612 	    }
6613 	}
6614 	redraw_gui_only = TRUE;
6615     }
6616 # ifdef FEAT_XFONTSET
6617     else if (varp == &p_guifontset)
6618     {
6619 	if (STRCMP(p_guifontset, "*") == 0)
6620 	    errmsg = (char_u *)N_("E597: can't select fontset");
6621 	else if (gui.in_use && gui_init_font(p_guifontset, TRUE) != OK)
6622 	    errmsg = (char_u *)N_("E598: Invalid fontset");
6623 	redraw_gui_only = TRUE;
6624     }
6625 # endif
6626 # ifdef FEAT_MBYTE
6627     else if (varp == &p_guifontwide)
6628     {
6629 	if (STRCMP(p_guifontwide, "*") == 0)
6630 	    errmsg = (char_u *)N_("E533: can't select wide font");
6631 	else if (gui_get_wide_font() == FAIL)
6632 	    errmsg = (char_u *)N_("E534: Invalid wide font");
6633 	redraw_gui_only = TRUE;
6634     }
6635 # endif
6636 #endif
6637 
6638 #ifdef CURSOR_SHAPE
6639     /* 'guicursor' */
6640     else if (varp == &p_guicursor)
6641 	errmsg = parse_shape_opt(SHAPE_CURSOR);
6642 #endif
6643 
6644 #ifdef FEAT_MOUSESHAPE
6645     /* 'mouseshape' */
6646     else if (varp == &p_mouseshape)
6647     {
6648 	errmsg = parse_shape_opt(SHAPE_MOUSE);
6649 	update_mouseshape(-1);
6650     }
6651 #endif
6652 
6653 #ifdef FEAT_PRINTER
6654     else if (varp == &p_popt)
6655 	errmsg = parse_printoptions();
6656 # if defined(FEAT_MBYTE) && defined(FEAT_POSTSCRIPT)
6657     else if (varp == &p_pmfn)
6658 	errmsg = parse_printmbfont();
6659 # endif
6660 #endif
6661 
6662 #ifdef FEAT_LANGMAP
6663     /* 'langmap' */
6664     else if (varp == &p_langmap)
6665 	langmap_set();
6666 #endif
6667 
6668 #ifdef FEAT_LINEBREAK
6669     /* 'breakat' */
6670     else if (varp == &p_breakat)
6671 	fill_breakat_flags();
6672 #endif
6673 
6674 #ifdef FEAT_TITLE
6675     /* 'titlestring' and 'iconstring' */
6676     else if (varp == &p_titlestring || varp == &p_iconstring)
6677     {
6678 # ifdef FEAT_STL_OPT
6679 	int	flagval = (varp == &p_titlestring) ? STL_IN_TITLE : STL_IN_ICON;
6680 
6681 	/* NULL => statusline syntax */
6682 	if (vim_strchr(*varp, '%') && check_stl_option(*varp) == NULL)
6683 	    stl_syntax |= flagval;
6684 	else
6685 	    stl_syntax &= ~flagval;
6686 # endif
6687 	did_set_title(varp == &p_iconstring);
6688 
6689     }
6690 #endif
6691 
6692 #ifdef FEAT_GUI
6693     /* 'guioptions' */
6694     else if (varp == &p_go)
6695     {
6696 	gui_init_which_components(oldval);
6697 	redraw_gui_only = TRUE;
6698     }
6699 #endif
6700 
6701 #if defined(FEAT_GUI_TABLINE)
6702     /* 'guitablabel' */
6703     else if (varp == &p_gtl)
6704     {
6705 	redraw_tabline = TRUE;
6706 	redraw_gui_only = TRUE;
6707     }
6708     /* 'guitabtooltip' */
6709     else if (varp == &p_gtt)
6710     {
6711 	redraw_gui_only = TRUE;
6712     }
6713 #endif
6714 
6715 #if defined(FEAT_MOUSE_TTY) && (defined(UNIX) || defined(VMS))
6716     /* 'ttymouse' */
6717     else if (varp == &p_ttym)
6718     {
6719 	/* Switch the mouse off before changing the escape sequences used for
6720 	 * that. */
6721 	mch_setmouse(FALSE);
6722 	if (opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE) != OK)
6723 	    errmsg = e_invarg;
6724 	else
6725 	    check_mouse_termcode();
6726 	if (termcap_active)
6727 	    setmouse();		/* may switch it on again */
6728     }
6729 #endif
6730 
6731     /* 'selection' */
6732     else if (varp == &p_sel)
6733     {
6734 	if (*p_sel == NUL
6735 		|| check_opt_strings(p_sel, p_sel_values, FALSE) != OK)
6736 	    errmsg = e_invarg;
6737     }
6738 
6739     /* 'selectmode' */
6740     else if (varp == &p_slm)
6741     {
6742 	if (check_opt_strings(p_slm, p_slm_values, TRUE) != OK)
6743 	    errmsg = e_invarg;
6744     }
6745 
6746 #ifdef FEAT_BROWSE
6747     /* 'browsedir' */
6748     else if (varp == &p_bsdir)
6749     {
6750 	if (check_opt_strings(p_bsdir, p_bsdir_values, FALSE) != OK
6751 		&& !mch_isdir(p_bsdir))
6752 	    errmsg = e_invarg;
6753     }
6754 #endif
6755 
6756     /* 'keymodel' */
6757     else if (varp == &p_km)
6758     {
6759 	if (check_opt_strings(p_km, p_km_values, TRUE) != OK)
6760 	    errmsg = e_invarg;
6761 	else
6762 	{
6763 	    km_stopsel = (vim_strchr(p_km, 'o') != NULL);
6764 	    km_startsel = (vim_strchr(p_km, 'a') != NULL);
6765 	}
6766     }
6767 
6768     /* 'mousemodel' */
6769     else if (varp == &p_mousem)
6770     {
6771 	if (check_opt_strings(p_mousem, p_mousem_values, FALSE) != OK)
6772 	    errmsg = e_invarg;
6773 #if defined(FEAT_GUI_MOTIF) && defined(FEAT_MENU) && (XmVersion <= 1002)
6774 	else if (*p_mousem != *oldval)
6775 	    /* Changed from "extend" to "popup" or "popup_setpos" or vv: need
6776 	     * to create or delete the popup menus. */
6777 	    gui_motif_update_mousemodel(root_menu);
6778 #endif
6779     }
6780 
6781     /* 'switchbuf' */
6782     else if (varp == &p_swb)
6783     {
6784 	if (opt_strings_flags(p_swb, p_swb_values, &swb_flags, TRUE) != OK)
6785 	    errmsg = e_invarg;
6786     }
6787 
6788     /* 'debug' */
6789     else if (varp == &p_debug)
6790     {
6791 	if (check_opt_strings(p_debug, p_debug_values, TRUE) != OK)
6792 	    errmsg = e_invarg;
6793     }
6794 
6795     /* 'display' */
6796     else if (varp == &p_dy)
6797     {
6798 	if (opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE) != OK)
6799 	    errmsg = e_invarg;
6800 	else
6801 	    (void)init_chartab();
6802 
6803     }
6804 
6805 #ifdef FEAT_WINDOWS
6806     /* 'eadirection' */
6807     else if (varp == &p_ead)
6808     {
6809 	if (check_opt_strings(p_ead, p_ead_values, FALSE) != OK)
6810 	    errmsg = e_invarg;
6811     }
6812 #endif
6813 
6814 #ifdef FEAT_CLIPBOARD
6815     /* 'clipboard' */
6816     else if (varp == &p_cb)
6817 	errmsg = check_clipboard_option();
6818 #endif
6819 
6820 #ifdef FEAT_SPELL
6821     /* When 'spelllang' or 'spellfile' is set and there is a window for this
6822      * buffer in which 'spell' is set load the wordlists. */
6823     else if (varp == &(curwin->w_s->b_p_spl)
6824 	    || varp == &(curwin->w_s->b_p_spf))
6825     {
6826 	errmsg = did_set_spell_option(varp == &(curwin->w_s->b_p_spf));
6827     }
6828     /* When 'spellcapcheck' is set compile the regexp program. */
6829     else if (varp == &(curwin->w_s->b_p_spc))
6830     {
6831 	errmsg = compile_cap_prog(curwin->w_s);
6832     }
6833     /* 'spellsuggest' */
6834     else if (varp == &p_sps)
6835     {
6836 	if (spell_check_sps() != OK)
6837 	    errmsg = e_invarg;
6838     }
6839     /* 'mkspellmem' */
6840     else if (varp == &p_msm)
6841     {
6842 	if (spell_check_msm() != OK)
6843 	    errmsg = e_invarg;
6844     }
6845 #endif
6846 
6847 #ifdef FEAT_QUICKFIX
6848     /* When 'bufhidden' is set, check for valid value. */
6849     else if (gvarp == &p_bh)
6850     {
6851 	if (check_opt_strings(curbuf->b_p_bh, p_bufhidden_values, FALSE) != OK)
6852 	    errmsg = e_invarg;
6853     }
6854 
6855     /* When 'buftype' is set, check for valid value. */
6856     else if (gvarp == &p_bt)
6857     {
6858 	if (check_opt_strings(curbuf->b_p_bt, p_buftype_values, FALSE) != OK)
6859 	    errmsg = e_invarg;
6860 	else
6861 	{
6862 # ifdef FEAT_WINDOWS
6863 	    if (curwin->w_status_height)
6864 	    {
6865 		curwin->w_redr_status = TRUE;
6866 		redraw_later(VALID);
6867 	    }
6868 # endif
6869 	    curbuf->b_help = (curbuf->b_p_bt[0] == 'h');
6870 # ifdef FEAT_TITLE
6871 	    redraw_titles();
6872 # endif
6873 	}
6874     }
6875 #endif
6876 
6877 #ifdef FEAT_STL_OPT
6878     /* 'statusline' or 'rulerformat' */
6879     else if (gvarp == &p_stl || varp == &p_ruf)
6880     {
6881 	int wid;
6882 
6883 	if (varp == &p_ruf)	/* reset ru_wid first */
6884 	    ru_wid = 0;
6885 	s = *varp;
6886 	if (varp == &p_ruf && *s == '%')
6887 	{
6888 	    /* set ru_wid if 'ruf' starts with "%99(" */
6889 	    if (*++s == '-')	/* ignore a '-' */
6890 		s++;
6891 	    wid = getdigits(&s);
6892 	    if (wid && *s == '(' && (errmsg = check_stl_option(p_ruf)) == NULL)
6893 		ru_wid = wid;
6894 	    else
6895 		errmsg = check_stl_option(p_ruf);
6896 	}
6897 	/* check 'statusline' only if it doesn't start with "%!" */
6898 	else if (varp == &p_ruf || s[0] != '%' || s[1] != '!')
6899 	    errmsg = check_stl_option(s);
6900 	if (varp == &p_ruf && errmsg == NULL)
6901 	    comp_col();
6902     }
6903 #endif
6904 
6905 #ifdef FEAT_INS_EXPAND
6906     /* check if it is a valid value for 'complete' -- Acevedo */
6907     else if (gvarp == &p_cpt)
6908     {
6909 	for (s = *varp; *s;)
6910 	{
6911 	    while (*s == ',' || *s == ' ')
6912 		s++;
6913 	    if (!*s)
6914 		break;
6915 	    if (vim_strchr((char_u *)".wbuksid]tU", *s) == NULL)
6916 	    {
6917 		errmsg = illegal_char(errbuf, *s);
6918 		break;
6919 	    }
6920 	    if (*++s != NUL && *s != ',' && *s != ' ')
6921 	    {
6922 		if (s[-1] == 'k' || s[-1] == 's')
6923 		{
6924 		    /* skip optional filename after 'k' and 's' */
6925 		    while (*s && *s != ',' && *s != ' ')
6926 		    {
6927 			if (*s == '\\')
6928 			    ++s;
6929 			++s;
6930 		    }
6931 		}
6932 		else
6933 		{
6934 		    if (errbuf != NULL)
6935 		    {
6936 			sprintf((char *)errbuf,
6937 				     _("E535: Illegal character after <%c>"),
6938 				     *--s);
6939 			errmsg = errbuf;
6940 		    }
6941 		    else
6942 			errmsg = (char_u *)"";
6943 		    break;
6944 		}
6945 	    }
6946 	}
6947     }
6948 
6949     /* 'completeopt' */
6950     else if (varp == &p_cot)
6951     {
6952 	if (check_opt_strings(p_cot, p_cot_values, TRUE) != OK)
6953 	    errmsg = e_invarg;
6954     }
6955 #endif /* FEAT_INS_EXPAND */
6956 
6957 
6958 #if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
6959     else if (varp == &p_toolbar)
6960     {
6961 	if (opt_strings_flags(p_toolbar, p_toolbar_values,
6962 			      &toolbar_flags, TRUE) != OK)
6963 	    errmsg = e_invarg;
6964 	else
6965 	{
6966 	    out_flush();
6967 	    gui_mch_show_toolbar((toolbar_flags &
6968 				  (TOOLBAR_TEXT | TOOLBAR_ICONS)) != 0);
6969 	}
6970     }
6971 #endif
6972 
6973 #if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK)
6974     /* 'toolbariconsize': GTK+ 2 only */
6975     else if (varp == &p_tbis)
6976     {
6977 	if (opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE) != OK)
6978 	    errmsg = e_invarg;
6979 	else
6980 	{
6981 	    out_flush();
6982 	    gui_mch_show_toolbar((toolbar_flags &
6983 				  (TOOLBAR_TEXT | TOOLBAR_ICONS)) != 0);
6984 	}
6985     }
6986 #endif
6987 
6988     /* 'pastetoggle': translate key codes like in a mapping */
6989     else if (varp == &p_pt)
6990     {
6991 	if (*p_pt)
6992 	{
6993 	    (void)replace_termcodes(p_pt, &p, TRUE, TRUE, FALSE);
6994 	    if (p != NULL)
6995 	    {
6996 		if (new_value_alloced)
6997 		    free_string_option(p_pt);
6998 		p_pt = p;
6999 		new_value_alloced = TRUE;
7000 	    }
7001 	}
7002     }
7003 
7004     /* 'backspace' */
7005     else if (varp == &p_bs)
7006     {
7007 	if (VIM_ISDIGIT(*p_bs))
7008 	{
7009 	    if (*p_bs > '2' || p_bs[1] != NUL)
7010 		errmsg = e_invarg;
7011 	}
7012 	else if (check_opt_strings(p_bs, p_bs_values, TRUE) != OK)
7013 	    errmsg = e_invarg;
7014     }
7015     else if (varp == &p_bo)
7016     {
7017 	if (opt_strings_flags(p_bo, p_bo_values, &bo_flags, TRUE) != OK)
7018 	    errmsg = e_invarg;
7019     }
7020 
7021     /* 'tagcase' */
7022     else if (gvarp == &p_tc)
7023     {
7024 	unsigned int	*flags;
7025 
7026 	if (opt_flags & OPT_LOCAL)
7027 	{
7028 	    p = curbuf->b_p_tc;
7029 	    flags = &curbuf->b_tc_flags;
7030 	}
7031 	else
7032 	{
7033 	    p = p_tc;
7034 	    flags = &tc_flags;
7035 	}
7036 
7037 	if ((opt_flags & OPT_LOCAL) && *p == NUL)
7038 	    /* make the local value empty: use the global value */
7039 	    *flags = 0;
7040 	else if (*p == NUL
7041 		|| opt_strings_flags(p, p_tc_values, flags, FALSE) != OK)
7042 	    errmsg = e_invarg;
7043     }
7044 
7045 #ifdef FEAT_MBYTE
7046     /* 'casemap' */
7047     else if (varp == &p_cmp)
7048     {
7049 	if (opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE) != OK)
7050 	    errmsg = e_invarg;
7051     }
7052 #endif
7053 
7054 #ifdef FEAT_DIFF
7055     /* 'diffopt' */
7056     else if (varp == &p_dip)
7057     {
7058 	if (diffopt_changed() == FAIL)
7059 	    errmsg = e_invarg;
7060     }
7061 #endif
7062 
7063 #ifdef FEAT_FOLDING
7064     /* 'foldmethod' */
7065     else if (gvarp == &curwin->w_allbuf_opt.wo_fdm)
7066     {
7067 	if (check_opt_strings(*varp, p_fdm_values, FALSE) != OK
7068 		|| *curwin->w_p_fdm == NUL)
7069 	    errmsg = e_invarg;
7070 	else
7071 	{
7072 	    foldUpdateAll(curwin);
7073 	    if (foldmethodIsDiff(curwin))
7074 		newFoldLevel();
7075 	}
7076     }
7077 # ifdef FEAT_EVAL
7078     /* 'foldexpr' */
7079     else if (varp == &curwin->w_p_fde)
7080     {
7081 	if (foldmethodIsExpr(curwin))
7082 	    foldUpdateAll(curwin);
7083     }
7084 # endif
7085     /* 'foldmarker' */
7086     else if (gvarp == &curwin->w_allbuf_opt.wo_fmr)
7087     {
7088 	p = vim_strchr(*varp, ',');
7089 	if (p == NULL)
7090 	    errmsg = (char_u *)N_("E536: comma required");
7091 	else if (p == *varp || p[1] == NUL)
7092 	    errmsg = e_invarg;
7093 	else if (foldmethodIsMarker(curwin))
7094 	    foldUpdateAll(curwin);
7095     }
7096     /* 'commentstring' */
7097     else if (gvarp == &p_cms)
7098     {
7099 	if (**varp != NUL && strstr((char *)*varp, "%s") == NULL)
7100 	    errmsg = (char_u *)N_("E537: 'commentstring' must be empty or contain %s");
7101     }
7102     /* 'foldopen' */
7103     else if (varp == &p_fdo)
7104     {
7105 	if (opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE) != OK)
7106 	    errmsg = e_invarg;
7107     }
7108     /* 'foldclose' */
7109     else if (varp == &p_fcl)
7110     {
7111 	if (check_opt_strings(p_fcl, p_fcl_values, TRUE) != OK)
7112 	    errmsg = e_invarg;
7113     }
7114     /* 'foldignore' */
7115     else if (gvarp == &curwin->w_allbuf_opt.wo_fdi)
7116     {
7117 	if (foldmethodIsIndent(curwin))
7118 	    foldUpdateAll(curwin);
7119     }
7120 #endif
7121 
7122 #ifdef FEAT_VIRTUALEDIT
7123     /* 'virtualedit' */
7124     else if (varp == &p_ve)
7125     {
7126 	if (opt_strings_flags(p_ve, p_ve_values, &ve_flags, TRUE) != OK)
7127 	    errmsg = e_invarg;
7128 	else if (STRCMP(p_ve, oldval) != 0)
7129 	{
7130 	    /* Recompute cursor position in case the new 've' setting
7131 	     * changes something. */
7132 	    validate_virtcol();
7133 	    coladvance(curwin->w_virtcol);
7134 	}
7135     }
7136 #endif
7137 
7138 #if defined(FEAT_CSCOPE) && defined(FEAT_QUICKFIX)
7139     else if (varp == &p_csqf)
7140     {
7141 	if (p_csqf != NULL)
7142 	{
7143 	    p = p_csqf;
7144 	    while (*p != NUL)
7145 	    {
7146 		if (vim_strchr((char_u *)CSQF_CMDS, *p) == NULL
7147 			|| p[1] == NUL
7148 			|| vim_strchr((char_u *)CSQF_FLAGS, p[1]) == NULL
7149 			|| (p[2] != NUL && p[2] != ','))
7150 		{
7151 		    errmsg = e_invarg;
7152 		    break;
7153 		}
7154 		else if (p[2] == NUL)
7155 		    break;
7156 		else
7157 		    p += 3;
7158 	    }
7159 	}
7160     }
7161 #endif
7162 
7163 #ifdef FEAT_CINDENT
7164     /* 'cinoptions' */
7165     else if (gvarp == &p_cino)
7166     {
7167 	/* TODO: recognize errors */
7168 	parse_cino(curbuf);
7169     }
7170 #endif
7171 
7172 #if defined(FEAT_RENDER_OPTIONS)
7173     else if (varp == &p_rop && gui.in_use)
7174     {
7175 	if (!gui_mch_set_rendering_options(p_rop))
7176 	    errmsg = e_invarg;
7177     }
7178 #endif
7179 
7180     /* Options that are a list of flags. */
7181     else
7182     {
7183 	p = NULL;
7184 	if (varp == &p_ww)
7185 	    p = (char_u *)WW_ALL;
7186 	if (varp == &p_shm)
7187 	    p = (char_u *)SHM_ALL;
7188 	else if (varp == &(p_cpo))
7189 	    p = (char_u *)CPO_ALL;
7190 	else if (varp == &(curbuf->b_p_fo))
7191 	    p = (char_u *)FO_ALL;
7192 #ifdef FEAT_CONCEAL
7193 	else if (varp == &curwin->w_p_cocu)
7194 	    p = (char_u *)COCU_ALL;
7195 #endif
7196 	else if (varp == &p_mouse)
7197 	{
7198 #ifdef FEAT_MOUSE
7199 	    p = (char_u *)MOUSE_ALL;
7200 #else
7201 	    if (*p_mouse != NUL)
7202 		errmsg = (char_u *)N_("E538: No mouse support");
7203 #endif
7204 	}
7205 #if defined(FEAT_GUI)
7206 	else if (varp == &p_go)
7207 	    p = (char_u *)GO_ALL;
7208 #endif
7209 	if (p != NULL)
7210 	{
7211 	    for (s = *varp; *s; ++s)
7212 		if (vim_strchr(p, *s) == NULL)
7213 		{
7214 		    errmsg = illegal_char(errbuf, *s);
7215 		    break;
7216 		}
7217 	}
7218     }
7219 
7220     /*
7221      * If error detected, restore the previous value.
7222      */
7223     if (errmsg != NULL)
7224     {
7225 	if (new_value_alloced)
7226 	    free_string_option(*varp);
7227 	*varp = oldval;
7228 	/*
7229 	 * When resetting some values, need to act on it.
7230 	 */
7231 	if (did_chartab)
7232 	    (void)init_chartab();
7233 	if (varp == &p_hl)
7234 	    (void)highlight_changed();
7235     }
7236     else
7237     {
7238 #ifdef FEAT_EVAL
7239 	/* Remember where the option was set. */
7240 	set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
7241 #endif
7242 	/*
7243 	 * Free string options that are in allocated memory.
7244 	 * Use "free_oldval", because recursiveness may change the flags under
7245 	 * our fingers (esp. init_highlight()).
7246 	 */
7247 	if (free_oldval)
7248 	    free_string_option(oldval);
7249 	if (new_value_alloced)
7250 	    options[opt_idx].flags |= P_ALLOCED;
7251 	else
7252 	    options[opt_idx].flags &= ~P_ALLOCED;
7253 
7254 	if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
7255 		&& ((int)options[opt_idx].indir & PV_BOTH))
7256 	{
7257 	    /* global option with local value set to use global value; free
7258 	     * the local value and make it empty */
7259 	    p = get_varp_scope(&(options[opt_idx]), OPT_LOCAL);
7260 	    free_string_option(*(char_u **)p);
7261 	    *(char_u **)p = empty_option;
7262 	}
7263 
7264 	/* May set global value for local option. */
7265 	else if (!(opt_flags & OPT_LOCAL) && opt_flags != OPT_GLOBAL)
7266 	    set_string_option_global(opt_idx, varp);
7267 
7268 #ifdef FEAT_AUTOCMD
7269 	/*
7270 	 * Trigger the autocommand only after setting the flags.
7271 	 */
7272 # ifdef FEAT_SYN_HL
7273 	/* When 'syntax' is set, load the syntax of that name */
7274 	if (varp == &(curbuf->b_p_syn))
7275 	{
7276 	    apply_autocmds(EVENT_SYNTAX, curbuf->b_p_syn,
7277 					       curbuf->b_fname, TRUE, curbuf);
7278 	}
7279 # endif
7280 	else if (varp == &(curbuf->b_p_ft))
7281 	{
7282 	    /* 'filetype' is set, trigger the FileType autocommand */
7283 	    did_filetype = TRUE;
7284 	    apply_autocmds(EVENT_FILETYPE, curbuf->b_p_ft,
7285 					       curbuf->b_fname, TRUE, curbuf);
7286 	}
7287 #endif
7288 #ifdef FEAT_SPELL
7289 	if (varp == &(curwin->w_s->b_p_spl))
7290 	{
7291 	    char_u	fname[200];
7292 	    char_u	*q = curwin->w_s->b_p_spl;
7293 
7294 	    /* Skip the first name if it is "cjk". */
7295 	    if (STRNCMP(q, "cjk,", 4) == 0)
7296 		q += 4;
7297 
7298 	    /*
7299 	     * Source the spell/LANG.vim in 'runtimepath'.
7300 	     * They could set 'spellcapcheck' depending on the language.
7301 	     * Use the first name in 'spelllang' up to '_region' or
7302 	     * '.encoding'.
7303 	     */
7304 	    for (p = q; *p != NUL; ++p)
7305 		if (vim_strchr((char_u *)"_.,", *p) != NULL)
7306 		    break;
7307 	    vim_snprintf((char *)fname, 200, "spell/%.*s.vim", (int)(p - q), q);
7308 	    source_runtime(fname, DIP_ALL);
7309 	}
7310 #endif
7311     }
7312 
7313 #ifdef FEAT_MOUSE
7314     if (varp == &p_mouse)
7315     {
7316 # ifdef FEAT_MOUSE_TTY
7317 	if (*p_mouse == NUL)
7318 	    mch_setmouse(FALSE);    /* switch mouse off */
7319 	else
7320 # endif
7321 	    setmouse();		    /* in case 'mouse' changed */
7322     }
7323 #endif
7324 
7325     if (curwin->w_curswant != MAXCOL
7326 		     && (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0)
7327 	curwin->w_set_curswant = TRUE;
7328 
7329 #ifdef FEAT_GUI
7330     /* check redraw when it's not a GUI option or the GUI is active. */
7331     if (!redraw_gui_only || gui.in_use)
7332 #endif
7333 	check_redraw(options[opt_idx].flags);
7334 
7335     return errmsg;
7336 }
7337 
7338 #if defined(FEAT_SYN_HL) || defined(PROTO)
7339 /*
7340  * Simple int comparison function for use with qsort()
7341  */
7342     static int
7343 int_cmp(const void *a, const void *b)
7344 {
7345     return *(const int *)a - *(const int *)b;
7346 }
7347 
7348 /*
7349  * Handle setting 'colorcolumn' or 'textwidth' in window "wp".
7350  * Returns error message, NULL if it's OK.
7351  */
7352     char_u *
7353 check_colorcolumn(win_T *wp)
7354 {
7355     char_u	*s;
7356     int		col;
7357     int		count = 0;
7358     int		color_cols[256];
7359     int		i;
7360     int		j = 0;
7361 
7362     if (wp->w_buffer == NULL)
7363 	return NULL;  /* buffer was closed */
7364 
7365     for (s = wp->w_p_cc; *s != NUL && count < 255;)
7366     {
7367 	if (*s == '-' || *s == '+')
7368 	{
7369 	    /* -N and +N: add to 'textwidth' */
7370 	    col = (*s == '-') ? -1 : 1;
7371 	    ++s;
7372 	    if (!VIM_ISDIGIT(*s))
7373 		return e_invarg;
7374 	    col = col * getdigits(&s);
7375 	    if (wp->w_buffer->b_p_tw == 0)
7376 		goto skip;  /* 'textwidth' not set, skip this item */
7377 	    col += wp->w_buffer->b_p_tw;
7378 	    if (col < 0)
7379 		goto skip;
7380 	}
7381 	else if (VIM_ISDIGIT(*s))
7382 	    col = getdigits(&s);
7383 	else
7384 	    return e_invarg;
7385 	color_cols[count++] = col - 1;  /* 1-based to 0-based */
7386 skip:
7387 	if (*s == NUL)
7388 	    break;
7389 	if (*s != ',')
7390 	    return e_invarg;
7391 	if (*++s == NUL)
7392 	    return e_invarg;  /* illegal trailing comma as in "set cc=80," */
7393     }
7394 
7395     vim_free(wp->w_p_cc_cols);
7396     if (count == 0)
7397 	wp->w_p_cc_cols = NULL;
7398     else
7399     {
7400 	wp->w_p_cc_cols = (int *)alloc((unsigned)sizeof(int) * (count + 1));
7401 	if (wp->w_p_cc_cols != NULL)
7402 	{
7403 	    /* sort the columns for faster usage on screen redraw inside
7404 	     * win_line() */
7405 	    qsort(color_cols, count, sizeof(int), int_cmp);
7406 
7407 	    for (i = 0; i < count; ++i)
7408 		/* skip duplicates */
7409 		if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i])
7410 		    wp->w_p_cc_cols[j++] = color_cols[i];
7411 	    wp->w_p_cc_cols[j] = -1;  /* end marker */
7412 	}
7413     }
7414 
7415     return NULL;  /* no error */
7416 }
7417 #endif
7418 
7419 /*
7420  * Handle setting 'listchars' or 'fillchars'.
7421  * Returns error message, NULL if it's OK.
7422  */
7423     static char_u *
7424 set_chars_option(char_u **varp)
7425 {
7426     int		round, i, len, entries;
7427     char_u	*p, *s;
7428     int		c1, c2 = 0;
7429     struct charstab
7430     {
7431 	int	*cp;
7432 	char	*name;
7433     };
7434 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
7435     static struct charstab filltab[] =
7436     {
7437 	{&fill_stl,	"stl"},
7438 	{&fill_stlnc,	"stlnc"},
7439 	{&fill_vert,	"vert"},
7440 	{&fill_fold,	"fold"},
7441 	{&fill_diff,	"diff"},
7442     };
7443 #endif
7444     static struct charstab lcstab[] =
7445     {
7446 	{&lcs_eol,	"eol"},
7447 	{&lcs_ext,	"extends"},
7448 	{&lcs_nbsp,	"nbsp"},
7449 	{&lcs_prec,	"precedes"},
7450 	{&lcs_space,	"space"},
7451 	{&lcs_tab2,	"tab"},
7452 	{&lcs_trail,	"trail"},
7453 #ifdef FEAT_CONCEAL
7454 	{&lcs_conceal,	"conceal"},
7455 #else
7456 	{NULL,		"conceal"},
7457 #endif
7458     };
7459     struct charstab *tab;
7460 
7461 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
7462     if (varp == &p_lcs)
7463 #endif
7464     {
7465 	tab = lcstab;
7466 	entries = sizeof(lcstab) / sizeof(struct charstab);
7467     }
7468 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
7469     else
7470     {
7471 	tab = filltab;
7472 	entries = sizeof(filltab) / sizeof(struct charstab);
7473     }
7474 #endif
7475 
7476     /* first round: check for valid value, second round: assign values */
7477     for (round = 0; round <= 1; ++round)
7478     {
7479 	if (round > 0)
7480 	{
7481 	    /* After checking that the value is valid: set defaults: space for
7482 	     * 'fillchars', NUL for 'listchars' */
7483 	    for (i = 0; i < entries; ++i)
7484 		if (tab[i].cp != NULL)
7485 		    *(tab[i].cp) = (varp == &p_lcs ? NUL : ' ');
7486 	    if (varp == &p_lcs)
7487 		lcs_tab1 = NUL;
7488 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
7489 	    else
7490 		fill_diff = '-';
7491 #endif
7492 	}
7493 	p = *varp;
7494 	while (*p)
7495 	{
7496 	    for (i = 0; i < entries; ++i)
7497 	    {
7498 		len = (int)STRLEN(tab[i].name);
7499 		if (STRNCMP(p, tab[i].name, len) == 0
7500 			&& p[len] == ':'
7501 			&& p[len + 1] != NUL)
7502 		{
7503 		    s = p + len + 1;
7504 #ifdef FEAT_MBYTE
7505 		    c1 = mb_ptr2char_adv(&s);
7506 		    if (mb_char2cells(c1) > 1)
7507 			continue;
7508 #else
7509 		    c1 = *s++;
7510 #endif
7511 		    if (tab[i].cp == &lcs_tab2)
7512 		    {
7513 			if (*s == NUL)
7514 			    continue;
7515 #ifdef FEAT_MBYTE
7516 			c2 = mb_ptr2char_adv(&s);
7517 			if (mb_char2cells(c2) > 1)
7518 			    continue;
7519 #else
7520 			c2 = *s++;
7521 #endif
7522 		    }
7523 		    if (*s == ',' || *s == NUL)
7524 		    {
7525 			if (round)
7526 			{
7527 			    if (tab[i].cp == &lcs_tab2)
7528 			    {
7529 				lcs_tab1 = c1;
7530 				lcs_tab2 = c2;
7531 			    }
7532 			    else if (tab[i].cp != NULL)
7533 				*(tab[i].cp) = c1;
7534 
7535 			}
7536 			p = s;
7537 			break;
7538 		    }
7539 		}
7540 	    }
7541 
7542 	    if (i == entries)
7543 		return e_invarg;
7544 	    if (*p == ',')
7545 		++p;
7546 	}
7547     }
7548 
7549     return NULL;	/* no error */
7550 }
7551 
7552 #ifdef FEAT_STL_OPT
7553 /*
7554  * Check validity of options with the 'statusline' format.
7555  * Return error message or NULL.
7556  */
7557     char_u *
7558 check_stl_option(char_u *s)
7559 {
7560     int		itemcnt = 0;
7561     int		groupdepth = 0;
7562     static char_u   errbuf[80];
7563 
7564     while (*s && itemcnt < STL_MAX_ITEM)
7565     {
7566 	/* Check for valid keys after % sequences */
7567 	while (*s && *s != '%')
7568 	    s++;
7569 	if (!*s)
7570 	    break;
7571 	s++;
7572 	if (*s != '%' && *s != ')')
7573 	    ++itemcnt;
7574 	if (*s == '%' || *s == STL_TRUNCMARK || *s == STL_MIDDLEMARK)
7575 	{
7576 	    s++;
7577 	    continue;
7578 	}
7579 	if (*s == ')')
7580 	{
7581 	    s++;
7582 	    if (--groupdepth < 0)
7583 		break;
7584 	    continue;
7585 	}
7586 	if (*s == '-')
7587 	    s++;
7588 	while (VIM_ISDIGIT(*s))
7589 	    s++;
7590 	if (*s == STL_USER_HL)
7591 	    continue;
7592 	if (*s == '.')
7593 	{
7594 	    s++;
7595 	    while (*s && VIM_ISDIGIT(*s))
7596 		s++;
7597 	}
7598 	if (*s == '(')
7599 	{
7600 	    groupdepth++;
7601 	    continue;
7602 	}
7603 	if (vim_strchr(STL_ALL, *s) == NULL)
7604 	{
7605 	    return illegal_char(errbuf, *s);
7606 	}
7607 	if (*s == '{')
7608 	{
7609 	    s++;
7610 	    while (*s != '}' && *s)
7611 		s++;
7612 	    if (*s != '}')
7613 		return (char_u *)N_("E540: Unclosed expression sequence");
7614 	}
7615     }
7616     if (itemcnt >= STL_MAX_ITEM)
7617 	return (char_u *)N_("E541: too many items");
7618     if (groupdepth != 0)
7619 	return (char_u *)N_("E542: unbalanced groups");
7620     return NULL;
7621 }
7622 #endif
7623 
7624 #ifdef FEAT_CLIPBOARD
7625 /*
7626  * Extract the items in the 'clipboard' option and set global values.
7627  */
7628     static char_u *
7629 check_clipboard_option(void)
7630 {
7631     int		new_unnamed = 0;
7632     int		new_autoselect_star = FALSE;
7633     int		new_autoselect_plus = FALSE;
7634     int		new_autoselectml = FALSE;
7635     int		new_html = FALSE;
7636     regprog_T	*new_exclude_prog = NULL;
7637     char_u	*errmsg = NULL;
7638     char_u	*p;
7639 
7640     for (p = p_cb; *p != NUL; )
7641     {
7642 	if (STRNCMP(p, "unnamed", 7) == 0 && (p[7] == ',' || p[7] == NUL))
7643 	{
7644 	    new_unnamed |= CLIP_UNNAMED;
7645 	    p += 7;
7646 	}
7647 	else if (STRNCMP(p, "unnamedplus", 11) == 0
7648 					    && (p[11] == ',' || p[11] == NUL))
7649 	{
7650 	    new_unnamed |= CLIP_UNNAMED_PLUS;
7651 	    p += 11;
7652 	}
7653 	else if (STRNCMP(p, "autoselect", 10) == 0
7654 					    && (p[10] == ',' || p[10] == NUL))
7655 	{
7656 	    new_autoselect_star = TRUE;
7657 	    p += 10;
7658 	}
7659 	else if (STRNCMP(p, "autoselectplus", 14) == 0
7660 					    && (p[14] == ',' || p[14] == NUL))
7661 	{
7662 	    new_autoselect_plus = TRUE;
7663 	    p += 14;
7664 	}
7665 	else if (STRNCMP(p, "autoselectml", 12) == 0
7666 					    && (p[12] == ',' || p[12] == NUL))
7667 	{
7668 	    new_autoselectml = TRUE;
7669 	    p += 12;
7670 	}
7671 	else if (STRNCMP(p, "html", 4) == 0 && (p[4] == ',' || p[4] == NUL))
7672 	{
7673 	    new_html = TRUE;
7674 	    p += 4;
7675 	}
7676 	else if (STRNCMP(p, "exclude:", 8) == 0 && new_exclude_prog == NULL)
7677 	{
7678 	    p += 8;
7679 	    new_exclude_prog = vim_regcomp(p, RE_MAGIC);
7680 	    if (new_exclude_prog == NULL)
7681 		errmsg = e_invarg;
7682 	    break;
7683 	}
7684 	else
7685 	{
7686 	    errmsg = e_invarg;
7687 	    break;
7688 	}
7689 	if (*p == ',')
7690 	    ++p;
7691     }
7692     if (errmsg == NULL)
7693     {
7694 	clip_unnamed = new_unnamed;
7695 	clip_autoselect_star = new_autoselect_star;
7696 	clip_autoselect_plus = new_autoselect_plus;
7697 	clip_autoselectml = new_autoselectml;
7698 	clip_html = new_html;
7699 	vim_regfree(clip_exclude_prog);
7700 	clip_exclude_prog = new_exclude_prog;
7701 #ifdef FEAT_GUI_GTK
7702 	if (gui.in_use)
7703 	{
7704 	    gui_gtk_set_selection_targets();
7705 	    gui_gtk_set_dnd_targets();
7706 	}
7707 #endif
7708     }
7709     else
7710 	vim_regfree(new_exclude_prog);
7711 
7712     return errmsg;
7713 }
7714 #endif
7715 
7716 #ifdef FEAT_SPELL
7717     static char_u *
7718 did_set_spell_option(int is_spellfile)
7719 {
7720     char_u  *errmsg = NULL;
7721     win_T   *wp;
7722     int	    l;
7723 
7724     if (is_spellfile)
7725     {
7726 	l = (int)STRLEN(curwin->w_s->b_p_spf);
7727 	if (l > 0 && (l < 4
7728 			|| STRCMP(curwin->w_s->b_p_spf + l - 4, ".add") != 0))
7729 	    errmsg = e_invarg;
7730     }
7731 
7732     if (errmsg == NULL)
7733     {
7734 	FOR_ALL_WINDOWS(wp)
7735 	    if (wp->w_buffer == curbuf && wp->w_p_spell)
7736 	    {
7737 		errmsg = did_set_spelllang(wp);
7738 # ifdef FEAT_WINDOWS
7739 		break;
7740 # endif
7741 	    }
7742     }
7743     return errmsg;
7744 }
7745 
7746 /*
7747  * Set curbuf->b_cap_prog to the regexp program for 'spellcapcheck'.
7748  * Return error message when failed, NULL when OK.
7749  */
7750     static char_u *
7751 compile_cap_prog(synblock_T *synblock)
7752 {
7753     regprog_T   *rp = synblock->b_cap_prog;
7754     char_u	*re;
7755 
7756     if (*synblock->b_p_spc == NUL)
7757 	synblock->b_cap_prog = NULL;
7758     else
7759     {
7760 	/* Prepend a ^ so that we only match at one column */
7761 	re = concat_str((char_u *)"^", synblock->b_p_spc);
7762 	if (re != NULL)
7763 	{
7764 	    synblock->b_cap_prog = vim_regcomp(re, RE_MAGIC);
7765 	    vim_free(re);
7766 	    if (synblock->b_cap_prog == NULL)
7767 	    {
7768 		synblock->b_cap_prog = rp; /* restore the previous program */
7769 		return e_invarg;
7770 	    }
7771 	}
7772     }
7773 
7774     vim_regfree(rp);
7775     return NULL;
7776 }
7777 #endif
7778 
7779 #if defined(FEAT_EVAL) || defined(PROTO)
7780 /*
7781  * Set the scriptID for an option, taking care of setting the buffer- or
7782  * window-local value.
7783  */
7784     static void
7785 set_option_scriptID_idx(int opt_idx, int opt_flags, int id)
7786 {
7787     int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
7788     int		indir = (int)options[opt_idx].indir;
7789 
7790     /* Remember where the option was set.  For local options need to do that
7791      * in the buffer or window structure. */
7792     if (both || (opt_flags & OPT_GLOBAL) || (indir & (PV_BUF|PV_WIN)) == 0)
7793 	options[opt_idx].scriptID = id;
7794     if (both || (opt_flags & OPT_LOCAL))
7795     {
7796 	if (indir & PV_BUF)
7797 	    curbuf->b_p_scriptID[indir & PV_MASK] = id;
7798 	else if (indir & PV_WIN)
7799 	    curwin->w_p_scriptID[indir & PV_MASK] = id;
7800     }
7801 }
7802 #endif
7803 
7804 /*
7805  * Set the value of a boolean option, and take care of side effects.
7806  * Returns NULL for success, or an error message for an error.
7807  */
7808     static char_u *
7809 set_bool_option(
7810     int		opt_idx,		/* index in options[] table */
7811     char_u	*varp,			/* pointer to the option variable */
7812     int		value,			/* new value */
7813     int		opt_flags)		/* OPT_LOCAL and/or OPT_GLOBAL */
7814 {
7815     int		old_value = *(int *)varp;
7816 
7817     /* Disallow changing some options from secure mode */
7818     if ((secure
7819 #ifdef HAVE_SANDBOX
7820 		|| sandbox != 0
7821 #endif
7822 		) && (options[opt_idx].flags & P_SECURE))
7823 	return e_secure;
7824 
7825     *(int *)varp = value;	    /* set the new value */
7826 #ifdef FEAT_EVAL
7827     /* Remember where the option was set. */
7828     set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
7829 #endif
7830 
7831 #ifdef FEAT_GUI
7832     need_mouse_correct = TRUE;
7833 #endif
7834 
7835     /* May set global value for local option. */
7836     if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
7837 	*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = value;
7838 
7839     /*
7840      * Handle side effects of changing a bool option.
7841      */
7842 
7843     /* 'compatible' */
7844     if ((int *)varp == &p_cp)
7845     {
7846 	compatible_set();
7847     }
7848 
7849 #ifdef FEAT_PERSISTENT_UNDO
7850     /* 'undofile' */
7851     else if ((int *)varp == &curbuf->b_p_udf || (int *)varp == &p_udf)
7852     {
7853 	/* Only take action when the option was set. When reset we do not
7854 	 * delete the undo file, the option may be set again without making
7855 	 * any changes in between. */
7856 	if (curbuf->b_p_udf || p_udf)
7857 	{
7858 	    char_u	hash[UNDO_HASH_SIZE];
7859 	    buf_T	*save_curbuf = curbuf;
7860 
7861 	    for (curbuf = firstbuf; curbuf != NULL; curbuf = curbuf->b_next)
7862 	    {
7863 		/* When 'undofile' is set globally: for every buffer, otherwise
7864 		 * only for the current buffer: Try to read in the undofile,
7865 		 * if one exists, the buffer wasn't changed and the buffer was
7866 		 * loaded */
7867 		if ((curbuf == save_curbuf
7868 				|| (opt_flags & OPT_GLOBAL) || opt_flags == 0)
7869 			&& !curbufIsChanged() && curbuf->b_ml.ml_mfp != NULL)
7870 		{
7871 		    u_compute_hash(hash);
7872 		    u_read_undo(NULL, hash, curbuf->b_fname);
7873 		}
7874 	    }
7875 	    curbuf = save_curbuf;
7876 	}
7877     }
7878 #endif
7879 
7880     else if ((int *)varp == &curbuf->b_p_ro)
7881     {
7882 	/* when 'readonly' is reset globally, also reset readonlymode */
7883 	if (!curbuf->b_p_ro && (opt_flags & OPT_LOCAL) == 0)
7884 	    readonlymode = FALSE;
7885 
7886 	/* when 'readonly' is set may give W10 again */
7887 	if (curbuf->b_p_ro)
7888 	    curbuf->b_did_warn = FALSE;
7889 
7890 #ifdef FEAT_TITLE
7891 	redraw_titles();
7892 #endif
7893     }
7894 
7895 #ifdef FEAT_GUI
7896     else if ((int *)varp == &p_mh)
7897     {
7898 	if (!p_mh)
7899 	    gui_mch_mousehide(FALSE);
7900     }
7901 #endif
7902 
7903 #ifdef FEAT_TITLE
7904     /* when 'modifiable' is changed, redraw the window title */
7905     else if ((int *)varp == &curbuf->b_p_ma)
7906     {
7907 	redraw_titles();
7908     }
7909     /* when 'endofline' is changed, redraw the window title */
7910     else if ((int *)varp == &curbuf->b_p_eol)
7911     {
7912 	redraw_titles();
7913     }
7914     /* when 'fixeol' is changed, redraw the window title */
7915     else if ((int *)varp == &curbuf->b_p_fixeol)
7916     {
7917 	redraw_titles();
7918     }
7919 # ifdef FEAT_MBYTE
7920     /* when 'bomb' is changed, redraw the window title and tab page text */
7921     else if ((int *)varp == &curbuf->b_p_bomb)
7922     {
7923 	redraw_titles();
7924     }
7925 # endif
7926 #endif
7927 
7928     /* when 'bin' is set also set some other options */
7929     else if ((int *)varp == &curbuf->b_p_bin)
7930     {
7931 	set_options_bin(old_value, curbuf->b_p_bin, opt_flags);
7932 #ifdef FEAT_TITLE
7933 	redraw_titles();
7934 #endif
7935     }
7936 
7937 #ifdef FEAT_AUTOCMD
7938     /* when 'buflisted' changes, trigger autocommands */
7939     else if ((int *)varp == &curbuf->b_p_bl && old_value != curbuf->b_p_bl)
7940     {
7941 	apply_autocmds(curbuf->b_p_bl ? EVENT_BUFADD : EVENT_BUFDELETE,
7942 						    NULL, NULL, TRUE, curbuf);
7943     }
7944 #endif
7945 
7946     /* when 'swf' is set, create swapfile, when reset remove swapfile */
7947     else if ((int *)varp == &curbuf->b_p_swf)
7948     {
7949 	if (curbuf->b_p_swf && p_uc)
7950 	    ml_open_file(curbuf);		/* create the swap file */
7951 	else
7952 	    /* no need to reset curbuf->b_may_swap, ml_open_file() will check
7953 	     * buf->b_p_swf */
7954 	    mf_close_file(curbuf, TRUE);	/* remove the swap file */
7955     }
7956 
7957     /* when 'terse' is set change 'shortmess' */
7958     else if ((int *)varp == &p_terse)
7959     {
7960 	char_u	*p;
7961 
7962 	p = vim_strchr(p_shm, SHM_SEARCH);
7963 
7964 	/* insert 's' in p_shm */
7965 	if (p_terse && p == NULL)
7966 	{
7967 	    STRCPY(IObuff, p_shm);
7968 	    STRCAT(IObuff, "s");
7969 	    set_string_option_direct((char_u *)"shm", -1, IObuff, OPT_FREE, 0);
7970 	}
7971 	/* remove 's' from p_shm */
7972 	else if (!p_terse && p != NULL)
7973 	    STRMOVE(p, p + 1);
7974     }
7975 
7976     /* when 'paste' is set or reset also change other options */
7977     else if ((int *)varp == &p_paste)
7978     {
7979 	paste_option_changed();
7980     }
7981 
7982     /* when 'insertmode' is set from an autocommand need to do work here */
7983     else if ((int *)varp == &p_im)
7984     {
7985 	if (p_im)
7986 	{
7987 	    if ((State & INSERT) == 0)
7988 		need_start_insertmode = TRUE;
7989 	    stop_insert_mode = FALSE;
7990 	}
7991 	else
7992 	{
7993 	    need_start_insertmode = FALSE;
7994 	    stop_insert_mode = TRUE;
7995 	    if (restart_edit != 0 && mode_displayed)
7996 		clear_cmdline = TRUE;	/* remove "(insert)" */
7997 	    restart_edit = 0;
7998 	}
7999     }
8000 
8001     /* when 'ignorecase' is set or reset and 'hlsearch' is set, redraw */
8002     else if ((int *)varp == &p_ic && p_hls)
8003     {
8004 	redraw_all_later(SOME_VALID);
8005     }
8006 
8007 #ifdef FEAT_SEARCH_EXTRA
8008     /* when 'hlsearch' is set or reset: reset no_hlsearch */
8009     else if ((int *)varp == &p_hls)
8010     {
8011 	SET_NO_HLSEARCH(FALSE);
8012     }
8013 #endif
8014 
8015 #ifdef FEAT_SCROLLBIND
8016     /* when 'scrollbind' is set: snapshot the current position to avoid a jump
8017      * at the end of normal_cmd() */
8018     else if ((int *)varp == &curwin->w_p_scb)
8019     {
8020 	if (curwin->w_p_scb)
8021 	{
8022 	    do_check_scrollbind(FALSE);
8023 	    curwin->w_scbind_pos = curwin->w_topline;
8024 	}
8025     }
8026 #endif
8027 
8028 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
8029     /* There can be only one window with 'previewwindow' set. */
8030     else if ((int *)varp == &curwin->w_p_pvw)
8031     {
8032 	if (curwin->w_p_pvw)
8033 	{
8034 	    win_T	*win;
8035 
8036 	    for (win = firstwin; win != NULL; win = win->w_next)
8037 		if (win->w_p_pvw && win != curwin)
8038 		{
8039 		    curwin->w_p_pvw = FALSE;
8040 		    return (char_u *)N_("E590: A preview window already exists");
8041 		}
8042 	}
8043     }
8044 #endif
8045 
8046     /* when 'textmode' is set or reset also change 'fileformat' */
8047     else if ((int *)varp == &curbuf->b_p_tx)
8048     {
8049 	set_fileformat(curbuf->b_p_tx ? EOL_DOS : EOL_UNIX, opt_flags);
8050     }
8051 
8052     /* when 'textauto' is set or reset also change 'fileformats' */
8053     else if ((int *)varp == &p_ta)
8054 	set_string_option_direct((char_u *)"ffs", -1,
8055 				 p_ta ? (char_u *)DFLT_FFS_VIM : (char_u *)"",
8056 						     OPT_FREE | opt_flags, 0);
8057 
8058     /*
8059      * When 'lisp' option changes include/exclude '-' in
8060      * keyword characters.
8061      */
8062 #ifdef FEAT_LISP
8063     else if (varp == (char_u *)&(curbuf->b_p_lisp))
8064     {
8065 	(void)buf_init_chartab(curbuf, FALSE);	    /* ignore errors */
8066     }
8067 #endif
8068 
8069 #ifdef FEAT_TITLE
8070     /* when 'title' changed, may need to change the title; same for 'icon' */
8071     else if ((int *)varp == &p_title)
8072     {
8073 	did_set_title(FALSE);
8074     }
8075 
8076     else if ((int *)varp == &p_icon)
8077     {
8078 	did_set_title(TRUE);
8079     }
8080 #endif
8081 
8082     else if ((int *)varp == &curbuf->b_changed)
8083     {
8084 	if (!value)
8085 	    save_file_ff(curbuf);	/* Buffer is unchanged */
8086 #ifdef FEAT_TITLE
8087 	redraw_titles();
8088 #endif
8089 #ifdef FEAT_AUTOCMD
8090 	modified_was_set = value;
8091 #endif
8092     }
8093 
8094 #ifdef BACKSLASH_IN_FILENAME
8095     else if ((int *)varp == &p_ssl)
8096     {
8097 	if (p_ssl)
8098 	{
8099 	    psepc = '/';
8100 	    psepcN = '\\';
8101 	    pseps[0] = '/';
8102 	}
8103 	else
8104 	{
8105 	    psepc = '\\';
8106 	    psepcN = '/';
8107 	    pseps[0] = '\\';
8108 	}
8109 
8110 	/* need to adjust the file name arguments and buffer names. */
8111 	buflist_slash_adjust();
8112 	alist_slash_adjust();
8113 # ifdef FEAT_EVAL
8114 	scriptnames_slash_adjust();
8115 # endif
8116     }
8117 #endif
8118 
8119     /* If 'wrap' is set, set w_leftcol to zero. */
8120     else if ((int *)varp == &curwin->w_p_wrap)
8121     {
8122 	if (curwin->w_p_wrap)
8123 	    curwin->w_leftcol = 0;
8124     }
8125 
8126 #ifdef FEAT_WINDOWS
8127     else if ((int *)varp == &p_ea)
8128     {
8129 	if (p_ea && !old_value)
8130 	    win_equal(curwin, FALSE, 0);
8131     }
8132 #endif
8133 
8134     else if ((int *)varp == &p_wiv)
8135     {
8136 	/*
8137 	 * When 'weirdinvert' changed, set/reset 't_xs'.
8138 	 * Then set 'weirdinvert' according to value of 't_xs'.
8139 	 */
8140 	if (p_wiv && !old_value)
8141 	    T_XS = (char_u *)"y";
8142 	else if (!p_wiv && old_value)
8143 	    T_XS = empty_option;
8144 	p_wiv = (*T_XS != NUL);
8145     }
8146 
8147 #ifdef FEAT_BEVAL
8148     else if ((int *)varp == &p_beval)
8149     {
8150 	if (p_beval && !old_value)
8151 	    gui_mch_enable_beval_area(balloonEval);
8152 	else if (!p_beval && old_value)
8153 	    gui_mch_disable_beval_area(balloonEval);
8154     }
8155 #endif
8156 
8157 #ifdef FEAT_AUTOCHDIR
8158     else if ((int *)varp == &p_acd)
8159     {
8160 	/* Change directories when the 'acd' option is set now. */
8161 	DO_AUTOCHDIR
8162     }
8163 #endif
8164 
8165 #ifdef FEAT_DIFF
8166     /* 'diff' */
8167     else if ((int *)varp == &curwin->w_p_diff)
8168     {
8169 	/* May add or remove the buffer from the list of diff buffers. */
8170 	diff_buf_adjust(curwin);
8171 # ifdef FEAT_FOLDING
8172 	if (foldmethodIsDiff(curwin))
8173 	    foldUpdateAll(curwin);
8174 # endif
8175     }
8176 #endif
8177 
8178 #ifdef USE_IM_CONTROL
8179     /* 'imdisable' */
8180     else if ((int *)varp == &p_imdisable)
8181     {
8182 	/* Only de-activate it here, it will be enabled when changing mode. */
8183 	if (p_imdisable)
8184 	    im_set_active(FALSE);
8185 	else if (State & INSERT)
8186 	    /* When the option is set from an autocommand, it may need to take
8187 	     * effect right away. */
8188 	    im_set_active(curbuf->b_p_iminsert == B_IMODE_IM);
8189     }
8190 #endif
8191 
8192 #ifdef FEAT_SPELL
8193     /* 'spell' */
8194     else if ((int *)varp == &curwin->w_p_spell)
8195     {
8196 	if (curwin->w_p_spell)
8197 	{
8198 	    char_u	*errmsg = did_set_spelllang(curwin);
8199 	    if (errmsg != NULL)
8200 		EMSG(_(errmsg));
8201 	}
8202     }
8203 #endif
8204 
8205 #ifdef FEAT_FKMAP
8206     else if ((int *)varp == &p_altkeymap)
8207     {
8208 	if (old_value != p_altkeymap)
8209 	{
8210 	    if (!p_altkeymap)
8211 	    {
8212 		p_hkmap = p_fkmap;
8213 		p_fkmap = 0;
8214 	    }
8215 	    else
8216 	    {
8217 		p_fkmap = p_hkmap;
8218 		p_hkmap = 0;
8219 	    }
8220 	    (void)init_chartab();
8221 	}
8222     }
8223 
8224     /*
8225      * In case some second language keymapping options have changed, check
8226      * and correct the setting in a consistent way.
8227      */
8228 
8229     /*
8230      * If hkmap or fkmap are set, reset Arabic keymapping.
8231      */
8232     if ((p_hkmap || p_fkmap) && p_altkeymap)
8233     {
8234 	p_altkeymap = p_fkmap;
8235 # ifdef FEAT_ARABIC
8236 	curwin->w_p_arab = FALSE;
8237 # endif
8238 	(void)init_chartab();
8239     }
8240 
8241     /*
8242      * If hkmap set, reset Farsi keymapping.
8243      */
8244     if (p_hkmap && p_altkeymap)
8245     {
8246 	p_altkeymap = 0;
8247 	p_fkmap = 0;
8248 # ifdef FEAT_ARABIC
8249 	curwin->w_p_arab = FALSE;
8250 # endif
8251 	(void)init_chartab();
8252     }
8253 
8254     /*
8255      * If fkmap set, reset Hebrew keymapping.
8256      */
8257     if (p_fkmap && !p_altkeymap)
8258     {
8259 	p_altkeymap = 1;
8260 	p_hkmap = 0;
8261 # ifdef FEAT_ARABIC
8262 	curwin->w_p_arab = FALSE;
8263 # endif
8264 	(void)init_chartab();
8265     }
8266 #endif
8267 
8268 #ifdef FEAT_ARABIC
8269     if ((int *)varp == &curwin->w_p_arab)
8270     {
8271 	if (curwin->w_p_arab)
8272 	{
8273 	    /*
8274 	     * 'arabic' is set, handle various sub-settings.
8275 	     */
8276 	    if (!p_tbidi)
8277 	    {
8278 		/* set rightleft mode */
8279 		if (!curwin->w_p_rl)
8280 		{
8281 		    curwin->w_p_rl = TRUE;
8282 		    changed_window_setting();
8283 		}
8284 
8285 		/* Enable Arabic shaping (major part of what Arabic requires) */
8286 		if (!p_arshape)
8287 		{
8288 		    p_arshape = TRUE;
8289 		    redraw_later_clear();
8290 		}
8291 	    }
8292 
8293 	    /* Arabic requires a utf-8 encoding, inform the user if its not
8294 	     * set. */
8295 	    if (STRCMP(p_enc, "utf-8") != 0)
8296 	    {
8297 		static char *w_arabic = N_("W17: Arabic requires UTF-8, do ':set encoding=utf-8'");
8298 
8299 		msg_source(hl_attr(HLF_W));
8300 		MSG_ATTR(_(w_arabic), hl_attr(HLF_W));
8301 #ifdef FEAT_EVAL
8302 		set_vim_var_string(VV_WARNINGMSG, (char_u *)_(w_arabic), -1);
8303 #endif
8304 	    }
8305 
8306 # ifdef FEAT_MBYTE
8307 	    /* set 'delcombine' */
8308 	    p_deco = TRUE;
8309 # endif
8310 
8311 # ifdef FEAT_KEYMAP
8312 	    /* Force-set the necessary keymap for arabic */
8313 	    set_option_value((char_u *)"keymap", 0L, (char_u *)"arabic",
8314 								   OPT_LOCAL);
8315 # endif
8316 # ifdef FEAT_FKMAP
8317 	    p_altkeymap = 0;
8318 	    p_hkmap = 0;
8319 	    p_fkmap = 0;
8320 	    (void)init_chartab();
8321 # endif
8322 	}
8323 	else
8324 	{
8325 	    /*
8326 	     * 'arabic' is reset, handle various sub-settings.
8327 	     */
8328 	    if (!p_tbidi)
8329 	    {
8330 		/* reset rightleft mode */
8331 		if (curwin->w_p_rl)
8332 		{
8333 		    curwin->w_p_rl = FALSE;
8334 		    changed_window_setting();
8335 		}
8336 
8337 		/* 'arabicshape' isn't reset, it is a global option and
8338 		 * another window may still need it "on". */
8339 	    }
8340 
8341 	    /* 'delcombine' isn't reset, it is a global option and another
8342 	     * window may still want it "on". */
8343 
8344 # ifdef FEAT_KEYMAP
8345 	    /* Revert to the default keymap */
8346 	    curbuf->b_p_iminsert = B_IMODE_NONE;
8347 	    curbuf->b_p_imsearch = B_IMODE_USE_INSERT;
8348 # endif
8349 	}
8350     }
8351 
8352 #endif
8353 
8354     /*
8355      * End of handling side effects for bool options.
8356      */
8357 
8358     /* after handling side effects, call autocommand */
8359 
8360     options[opt_idx].flags |= P_WAS_SET;
8361 
8362 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
8363     if (!starting)
8364     {
8365 	char_u buf_old[2], buf_new[2], buf_type[7];
8366 	vim_snprintf((char *)buf_old, 2, "%d", old_value ? TRUE: FALSE);
8367 	vim_snprintf((char *)buf_new, 2, "%d", value ? TRUE: FALSE);
8368 	vim_snprintf((char *)buf_type, 7, "%s", (opt_flags & OPT_LOCAL) ? "local" : "global");
8369 	set_vim_var_string(VV_OPTION_NEW, buf_new, -1);
8370 	set_vim_var_string(VV_OPTION_OLD, buf_old, -1);
8371 	set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
8372 	apply_autocmds(EVENT_OPTIONSET, (char_u *) options[opt_idx].fullname, NULL, FALSE, NULL);
8373 	reset_v_option_vars();
8374     }
8375 #endif
8376 
8377     comp_col();			    /* in case 'ruler' or 'showcmd' changed */
8378     if (curwin->w_curswant != MAXCOL
8379 		     && (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0)
8380 	curwin->w_set_curswant = TRUE;
8381     check_redraw(options[opt_idx].flags);
8382 
8383     return NULL;
8384 }
8385 
8386 /*
8387  * Set the value of a number option, and take care of side effects.
8388  * Returns NULL for success, or an error message for an error.
8389  */
8390     static char_u *
8391 set_num_option(
8392     int		opt_idx,		/* index in options[] table */
8393     char_u	*varp,			/* pointer to the option variable */
8394     long	value,			/* new value */
8395     char_u	*errbuf,		/* buffer for error messages */
8396     size_t	errbuflen,		/* length of "errbuf" */
8397     int		opt_flags)		/* OPT_LOCAL, OPT_GLOBAL and
8398 					   OPT_MODELINE */
8399 {
8400     char_u	*errmsg = NULL;
8401     long	old_value = *(long *)varp;
8402     long	old_Rows = Rows;	/* remember old Rows */
8403     long	old_Columns = Columns;	/* remember old Columns */
8404     long	*pp = (long *)varp;
8405 
8406     /* Disallow changing some options from secure mode. */
8407     if ((secure
8408 #ifdef HAVE_SANDBOX
8409 		|| sandbox != 0
8410 #endif
8411 		) && (options[opt_idx].flags & P_SECURE))
8412 	return e_secure;
8413 
8414     *pp = value;
8415 #ifdef FEAT_EVAL
8416     /* Remember where the option was set. */
8417     set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
8418 #endif
8419 #ifdef FEAT_GUI
8420     need_mouse_correct = TRUE;
8421 #endif
8422 
8423     if (curbuf->b_p_sw < 0)
8424     {
8425 	errmsg = e_positive;
8426 	curbuf->b_p_sw = curbuf->b_p_ts;
8427     }
8428 
8429     /*
8430      * Number options that need some action when changed
8431      */
8432 #ifdef FEAT_WINDOWS
8433     if (pp == &p_wh || pp == &p_hh)
8434     {
8435 	if (p_wh < 1)
8436 	{
8437 	    errmsg = e_positive;
8438 	    p_wh = 1;
8439 	}
8440 	if (p_wmh > p_wh)
8441 	{
8442 	    errmsg = e_winheight;
8443 	    p_wh = p_wmh;
8444 	}
8445 	if (p_hh < 0)
8446 	{
8447 	    errmsg = e_positive;
8448 	    p_hh = 0;
8449 	}
8450 
8451 	/* Change window height NOW */
8452 	if (lastwin != firstwin)
8453 	{
8454 	    if (pp == &p_wh && curwin->w_height < p_wh)
8455 		win_setheight((int)p_wh);
8456 	    if (pp == &p_hh && curbuf->b_help && curwin->w_height < p_hh)
8457 		win_setheight((int)p_hh);
8458 	}
8459     }
8460 
8461     /* 'winminheight' */
8462     else if (pp == &p_wmh)
8463     {
8464 	if (p_wmh < 0)
8465 	{
8466 	    errmsg = e_positive;
8467 	    p_wmh = 0;
8468 	}
8469 	if (p_wmh > p_wh)
8470 	{
8471 	    errmsg = e_winheight;
8472 	    p_wmh = p_wh;
8473 	}
8474 	win_setminheight();
8475     }
8476 
8477 # ifdef FEAT_WINDOWS
8478     else if (pp == &p_wiw)
8479     {
8480 	if (p_wiw < 1)
8481 	{
8482 	    errmsg = e_positive;
8483 	    p_wiw = 1;
8484 	}
8485 	if (p_wmw > p_wiw)
8486 	{
8487 	    errmsg = e_winwidth;
8488 	    p_wiw = p_wmw;
8489 	}
8490 
8491 	/* Change window width NOW */
8492 	if (lastwin != firstwin && curwin->w_width < p_wiw)
8493 	    win_setwidth((int)p_wiw);
8494     }
8495 
8496     /* 'winminwidth' */
8497     else if (pp == &p_wmw)
8498     {
8499 	if (p_wmw < 0)
8500 	{
8501 	    errmsg = e_positive;
8502 	    p_wmw = 0;
8503 	}
8504 	if (p_wmw > p_wiw)
8505 	{
8506 	    errmsg = e_winwidth;
8507 	    p_wmw = p_wiw;
8508 	}
8509 	win_setminheight();
8510     }
8511 # endif
8512 
8513 #endif
8514 
8515 #ifdef FEAT_WINDOWS
8516     /* (re)set last window status line */
8517     else if (pp == &p_ls)
8518     {
8519 	last_status(FALSE);
8520     }
8521 
8522     /* (re)set tab page line */
8523     else if (pp == &p_stal)
8524     {
8525 	shell_new_rows();	/* recompute window positions and heights */
8526     }
8527 #endif
8528 
8529 #ifdef FEAT_GUI
8530     else if (pp == &p_linespace)
8531     {
8532 	/* Recompute gui.char_height and resize the Vim window to keep the
8533 	 * same number of lines. */
8534 	if (gui.in_use && gui_mch_adjust_charheight() == OK)
8535 	    gui_set_shellsize(FALSE, FALSE, RESIZE_VERT);
8536     }
8537 #endif
8538 
8539 #ifdef FEAT_FOLDING
8540     /* 'foldlevel' */
8541     else if (pp == &curwin->w_p_fdl)
8542     {
8543 	if (curwin->w_p_fdl < 0)
8544 	    curwin->w_p_fdl = 0;
8545 	newFoldLevel();
8546     }
8547 
8548     /* 'foldminlines' */
8549     else if (pp == &curwin->w_p_fml)
8550     {
8551 	foldUpdateAll(curwin);
8552     }
8553 
8554     /* 'foldnestmax' */
8555     else if (pp == &curwin->w_p_fdn)
8556     {
8557 	if (foldmethodIsSyntax(curwin) || foldmethodIsIndent(curwin))
8558 	    foldUpdateAll(curwin);
8559     }
8560 
8561     /* 'foldcolumn' */
8562     else if (pp == &curwin->w_p_fdc)
8563     {
8564 	if (curwin->w_p_fdc < 0)
8565 	{
8566 	    errmsg = e_positive;
8567 	    curwin->w_p_fdc = 0;
8568 	}
8569 	else if (curwin->w_p_fdc > 12)
8570 	{
8571 	    errmsg = e_invarg;
8572 	    curwin->w_p_fdc = 12;
8573 	}
8574     }
8575 #endif /* FEAT_FOLDING */
8576 
8577 #if defined(FEAT_FOLDING) || defined(FEAT_CINDENT)
8578     /* 'shiftwidth' or 'tabstop' */
8579     else if (pp == &curbuf->b_p_sw || pp == &curbuf->b_p_ts)
8580     {
8581 # ifdef FEAT_FOLDING
8582 	if (foldmethodIsIndent(curwin))
8583 	    foldUpdateAll(curwin);
8584 # endif
8585 # ifdef FEAT_CINDENT
8586 	/* When 'shiftwidth' changes, or it's zero and 'tabstop' changes:
8587 	 * parse 'cinoptions'. */
8588 	if (pp == &curbuf->b_p_sw || curbuf->b_p_sw == 0)
8589 	    parse_cino(curbuf);
8590 # endif
8591     }
8592 #endif
8593 
8594 #ifdef FEAT_MBYTE
8595     /* 'maxcombine' */
8596     else if (pp == &p_mco)
8597     {
8598 	if (p_mco > MAX_MCO)
8599 	    p_mco = MAX_MCO;
8600 	else if (p_mco < 0)
8601 	    p_mco = 0;
8602 	screenclear();	    /* will re-allocate the screen */
8603     }
8604 #endif
8605 
8606     else if (pp == &curbuf->b_p_iminsert)
8607     {
8608 	if (curbuf->b_p_iminsert < 0 || curbuf->b_p_iminsert > B_IMODE_LAST)
8609 	{
8610 	    errmsg = e_invarg;
8611 	    curbuf->b_p_iminsert = B_IMODE_NONE;
8612 	}
8613 	p_iminsert = curbuf->b_p_iminsert;
8614 	if (termcap_active)	/* don't do this in the alternate screen */
8615 	    showmode();
8616 #if defined(FEAT_WINDOWS) && defined(FEAT_KEYMAP)
8617 	/* Show/unshow value of 'keymap' in status lines. */
8618 	status_redraw_curbuf();
8619 #endif
8620     }
8621 
8622     else if (pp == &p_window)
8623     {
8624 	if (p_window < 1)
8625 	    p_window = 1;
8626 	else if (p_window >= Rows)
8627 	    p_window = Rows - 1;
8628     }
8629 
8630     else if (pp == &curbuf->b_p_imsearch)
8631     {
8632 	if (curbuf->b_p_imsearch < -1 || curbuf->b_p_imsearch > B_IMODE_LAST)
8633 	{
8634 	    errmsg = e_invarg;
8635 	    curbuf->b_p_imsearch = B_IMODE_NONE;
8636 	}
8637 	p_imsearch = curbuf->b_p_imsearch;
8638     }
8639 
8640 #ifdef FEAT_TITLE
8641     /* if 'titlelen' has changed, redraw the title */
8642     else if (pp == &p_titlelen)
8643     {
8644 	if (p_titlelen < 0)
8645 	{
8646 	    errmsg = e_positive;
8647 	    p_titlelen = 85;
8648 	}
8649 	if (starting != NO_SCREEN && old_value != p_titlelen)
8650 	    need_maketitle = TRUE;
8651     }
8652 #endif
8653 
8654     /* if p_ch changed value, change the command line height */
8655     else if (pp == &p_ch)
8656     {
8657 	if (p_ch < 1)
8658 	{
8659 	    errmsg = e_positive;
8660 	    p_ch = 1;
8661 	}
8662 	if (p_ch > Rows - min_rows() + 1)
8663 	    p_ch = Rows - min_rows() + 1;
8664 
8665 	/* Only compute the new window layout when startup has been
8666 	 * completed. Otherwise the frame sizes may be wrong. */
8667 	if (p_ch != old_value && full_screen
8668 #ifdef FEAT_GUI
8669 		&& !gui.starting
8670 #endif
8671 	   )
8672 	    command_height();
8673     }
8674 
8675     /* when 'updatecount' changes from zero to non-zero, open swap files */
8676     else if (pp == &p_uc)
8677     {
8678 	if (p_uc < 0)
8679 	{
8680 	    errmsg = e_positive;
8681 	    p_uc = 100;
8682 	}
8683 	if (p_uc && !old_value)
8684 	    ml_open_files();
8685     }
8686 #ifdef FEAT_CONCEAL
8687     else if (pp == &curwin->w_p_cole)
8688     {
8689 	if (curwin->w_p_cole < 0)
8690 	{
8691 	    errmsg = e_positive;
8692 	    curwin->w_p_cole = 0;
8693 	}
8694 	else if (curwin->w_p_cole > 3)
8695 	{
8696 	    errmsg = e_invarg;
8697 	    curwin->w_p_cole = 3;
8698 	}
8699     }
8700 #endif
8701 #ifdef MZSCHEME_GUI_THREADS
8702     else if (pp == &p_mzq)
8703 	mzvim_reset_timer();
8704 #endif
8705 
8706     /* sync undo before 'undolevels' changes */
8707     else if (pp == &p_ul)
8708     {
8709 	/* use the old value, otherwise u_sync() may not work properly */
8710 	p_ul = old_value;
8711 	u_sync(TRUE);
8712 	p_ul = value;
8713     }
8714     else if (pp == &curbuf->b_p_ul)
8715     {
8716 	/* use the old value, otherwise u_sync() may not work properly */
8717 	curbuf->b_p_ul = old_value;
8718 	u_sync(TRUE);
8719 	curbuf->b_p_ul = value;
8720     }
8721 
8722 #ifdef FEAT_LINEBREAK
8723     /* 'numberwidth' must be positive */
8724     else if (pp == &curwin->w_p_nuw)
8725     {
8726 	if (curwin->w_p_nuw < 1)
8727 	{
8728 	    errmsg = e_positive;
8729 	    curwin->w_p_nuw = 1;
8730 	}
8731 	if (curwin->w_p_nuw > 10)
8732 	{
8733 	    errmsg = e_invarg;
8734 	    curwin->w_p_nuw = 10;
8735 	}
8736 	curwin->w_nrwidth_line_count = 0; /* trigger a redraw */
8737     }
8738 #endif
8739 
8740     else if (pp == &curbuf->b_p_tw)
8741     {
8742 	if (curbuf->b_p_tw < 0)
8743 	{
8744 	    errmsg = e_positive;
8745 	    curbuf->b_p_tw = 0;
8746 	}
8747 #ifdef FEAT_SYN_HL
8748 # ifdef FEAT_WINDOWS
8749 	{
8750 	    win_T	*wp;
8751 	    tabpage_T	*tp;
8752 
8753 	    FOR_ALL_TAB_WINDOWS(tp, wp)
8754 		check_colorcolumn(wp);
8755 	}
8756 # else
8757 	check_colorcolumn(curwin);
8758 # endif
8759 #endif
8760     }
8761 
8762     /*
8763      * Check the bounds for numeric options here
8764      */
8765     if (Rows < min_rows() && full_screen)
8766     {
8767 	if (errbuf != NULL)
8768 	{
8769 	    vim_snprintf((char *)errbuf, errbuflen,
8770 			       _("E593: Need at least %d lines"), min_rows());
8771 	    errmsg = errbuf;
8772 	}
8773 	Rows = min_rows();
8774     }
8775     if (Columns < MIN_COLUMNS && full_screen)
8776     {
8777 	if (errbuf != NULL)
8778 	{
8779 	    vim_snprintf((char *)errbuf, errbuflen,
8780 			    _("E594: Need at least %d columns"), MIN_COLUMNS);
8781 	    errmsg = errbuf;
8782 	}
8783 	Columns = MIN_COLUMNS;
8784     }
8785     limit_screen_size();
8786 
8787     /*
8788      * If the screen (shell) height has been changed, assume it is the
8789      * physical screenheight.
8790      */
8791     if (old_Rows != Rows || old_Columns != Columns)
8792     {
8793 	/* Changing the screen size is not allowed while updating the screen. */
8794 	if (updating_screen)
8795 	    *pp = old_value;
8796 	else if (full_screen
8797 #ifdef FEAT_GUI
8798 		&& !gui.starting
8799 #endif
8800 	    )
8801 	    set_shellsize((int)Columns, (int)Rows, TRUE);
8802 	else
8803 	{
8804 	    /* Postpone the resizing; check the size and cmdline position for
8805 	     * messages. */
8806 	    check_shellsize();
8807 	    if (cmdline_row > Rows - p_ch && Rows > p_ch)
8808 		cmdline_row = Rows - p_ch;
8809 	}
8810 	if (p_window >= Rows || !option_was_set((char_u *)"window"))
8811 	    p_window = Rows - 1;
8812     }
8813 
8814     if (curbuf->b_p_ts <= 0)
8815     {
8816 	errmsg = e_positive;
8817 	curbuf->b_p_ts = 8;
8818     }
8819     if (p_tm < 0)
8820     {
8821 	errmsg = e_positive;
8822 	p_tm = 0;
8823     }
8824     if ((curwin->w_p_scr <= 0
8825 		|| (curwin->w_p_scr > curwin->w_height
8826 		    && curwin->w_height > 0))
8827 	    && full_screen)
8828     {
8829 	if (pp == &(curwin->w_p_scr))
8830 	{
8831 	    if (curwin->w_p_scr != 0)
8832 		errmsg = e_scroll;
8833 	    win_comp_scroll(curwin);
8834 	}
8835 	/* If 'scroll' became invalid because of a side effect silently adjust
8836 	 * it. */
8837 	else if (curwin->w_p_scr <= 0)
8838 	    curwin->w_p_scr = 1;
8839 	else /* curwin->w_p_scr > curwin->w_height */
8840 	    curwin->w_p_scr = curwin->w_height;
8841     }
8842     if (p_hi < 0)
8843     {
8844 	errmsg = e_positive;
8845 	p_hi = 0;
8846     }
8847     else if (p_hi > 10000)
8848     {
8849 	errmsg = e_invarg;
8850 	p_hi = 10000;
8851     }
8852     if (p_re < 0 || p_re > 2)
8853     {
8854 	errmsg = e_invarg;
8855 	p_re = 0;
8856     }
8857     if (p_report < 0)
8858     {
8859 	errmsg = e_positive;
8860 	p_report = 1;
8861     }
8862     if ((p_sj < -100 || p_sj >= Rows) && full_screen)
8863     {
8864 	if (Rows != old_Rows)	/* Rows changed, just adjust p_sj */
8865 	    p_sj = Rows / 2;
8866 	else
8867 	{
8868 	    errmsg = e_scroll;
8869 	    p_sj = 1;
8870 	}
8871     }
8872     if (p_so < 0 && full_screen)
8873     {
8874 	errmsg = e_scroll;
8875 	p_so = 0;
8876     }
8877     if (p_siso < 0 && full_screen)
8878     {
8879 	errmsg = e_positive;
8880 	p_siso = 0;
8881     }
8882 #ifdef FEAT_CMDWIN
8883     if (p_cwh < 1)
8884     {
8885 	errmsg = e_positive;
8886 	p_cwh = 1;
8887     }
8888 #endif
8889     if (p_ut < 0)
8890     {
8891 	errmsg = e_positive;
8892 	p_ut = 2000;
8893     }
8894     if (p_ss < 0)
8895     {
8896 	errmsg = e_positive;
8897 	p_ss = 0;
8898     }
8899 
8900     /* May set global value for local option. */
8901     if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
8902 	*(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = *pp;
8903 
8904     options[opt_idx].flags |= P_WAS_SET;
8905 
8906 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
8907     if (!starting && errmsg == NULL)
8908     {
8909 	char_u buf_old[11], buf_new[11], buf_type[7];
8910 	vim_snprintf((char *)buf_old, 10, "%ld", old_value);
8911 	vim_snprintf((char *)buf_new, 10, "%ld", value);
8912 	vim_snprintf((char *)buf_type, 7, "%s", (opt_flags & OPT_LOCAL) ? "local" : "global");
8913 	set_vim_var_string(VV_OPTION_NEW, buf_new, -1);
8914 	set_vim_var_string(VV_OPTION_OLD, buf_old, -1);
8915 	set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
8916 	apply_autocmds(EVENT_OPTIONSET, (char_u *) options[opt_idx].fullname, NULL, FALSE, NULL);
8917 	reset_v_option_vars();
8918     }
8919 #endif
8920 
8921     comp_col();			    /* in case 'columns' or 'ls' changed */
8922     if (curwin->w_curswant != MAXCOL
8923 		     && (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0)
8924 	curwin->w_set_curswant = TRUE;
8925     check_redraw(options[opt_idx].flags);
8926 
8927     return errmsg;
8928 }
8929 
8930 /*
8931  * Called after an option changed: check if something needs to be redrawn.
8932  */
8933     static void
8934 check_redraw(long_u flags)
8935 {
8936     /* Careful: P_RCLR and P_RALL are a combination of other P_ flags */
8937     int		doclear = (flags & P_RCLR) == P_RCLR;
8938     int		all = ((flags & P_RALL) == P_RALL || doclear);
8939 
8940 #ifdef FEAT_WINDOWS
8941     if ((flags & P_RSTAT) || all)	/* mark all status lines dirty */
8942 	status_redraw_all();
8943 #endif
8944 
8945     if ((flags & P_RBUF) || (flags & P_RWIN) || all)
8946 	changed_window_setting();
8947     if (flags & P_RBUF)
8948 	redraw_curbuf_later(NOT_VALID);
8949     if (doclear)
8950 	redraw_all_later(CLEAR);
8951     else if (all)
8952 	redraw_all_later(NOT_VALID);
8953 }
8954 
8955 /*
8956  * Find index for option 'arg'.
8957  * Return -1 if not found.
8958  */
8959     static int
8960 findoption(char_u *arg)
8961 {
8962     int		    opt_idx;
8963     char	    *s, *p;
8964     static short    quick_tab[27] = {0, 0};	/* quick access table */
8965     int		    is_term_opt;
8966 
8967     /*
8968      * For first call: Initialize the quick-access table.
8969      * It contains the index for the first option that starts with a certain
8970      * letter.  There are 26 letters, plus the first "t_" option.
8971      */
8972     if (quick_tab[1] == 0)
8973     {
8974 	p = options[0].fullname;
8975 	for (opt_idx = 1; (s = options[opt_idx].fullname) != NULL; opt_idx++)
8976 	{
8977 	    if (s[0] != p[0])
8978 	    {
8979 		if (s[0] == 't' && s[1] == '_')
8980 		    quick_tab[26] = opt_idx;
8981 		else
8982 		    quick_tab[CharOrdLow(s[0])] = opt_idx;
8983 	    }
8984 	    p = s;
8985 	}
8986     }
8987 
8988     /*
8989      * Check for name starting with an illegal character.
8990      */
8991 #ifdef EBCDIC
8992     if (!islower(arg[0]))
8993 #else
8994     if (arg[0] < 'a' || arg[0] > 'z')
8995 #endif
8996 	return -1;
8997 
8998     is_term_opt = (arg[0] == 't' && arg[1] == '_');
8999     if (is_term_opt)
9000 	opt_idx = quick_tab[26];
9001     else
9002 	opt_idx = quick_tab[CharOrdLow(arg[0])];
9003     for ( ; (s = options[opt_idx].fullname) != NULL; opt_idx++)
9004     {
9005 	if (STRCMP(arg, s) == 0)		    /* match full name */
9006 	    break;
9007     }
9008     if (s == NULL && !is_term_opt)
9009     {
9010 	opt_idx = quick_tab[CharOrdLow(arg[0])];
9011 	for ( ; options[opt_idx].fullname != NULL; opt_idx++)
9012 	{
9013 	    s = options[opt_idx].shortname;
9014 	    if (s != NULL && STRCMP(arg, s) == 0)   /* match short name */
9015 		break;
9016 	    s = NULL;
9017 	}
9018     }
9019     if (s == NULL)
9020 	opt_idx = -1;
9021     return opt_idx;
9022 }
9023 
9024 #if defined(FEAT_EVAL) || defined(FEAT_TCL) || defined(FEAT_MZSCHEME)
9025 /*
9026  * Get the value for an option.
9027  *
9028  * Returns:
9029  * Number or Toggle option: 1, *numval gets value.
9030  *	     String option: 0, *stringval gets allocated string.
9031  * Hidden Number or Toggle option: -1.
9032  *	     hidden String option: -2.
9033  *		   unknown option: -3.
9034  */
9035     int
9036 get_option_value(
9037     char_u	*name,
9038     long	*numval,
9039     char_u	**stringval,	    /* NULL when only checking existence */
9040     int		opt_flags)
9041 {
9042     int		opt_idx;
9043     char_u	*varp;
9044 
9045     opt_idx = findoption(name);
9046     if (opt_idx < 0)		    /* unknown option */
9047 	return -3;
9048 
9049     varp = get_varp_scope(&(options[opt_idx]), opt_flags);
9050 
9051     if (options[opt_idx].flags & P_STRING)
9052     {
9053 	if (varp == NULL)		    /* hidden option */
9054 	    return -2;
9055 	if (stringval != NULL)
9056 	{
9057 #ifdef FEAT_CRYPT
9058 	    /* never return the value of the crypt key */
9059 	    if ((char_u **)varp == &curbuf->b_p_key
9060 						&& **(char_u **)(varp) != NUL)
9061 		*stringval = vim_strsave((char_u *)"*****");
9062 	    else
9063 #endif
9064 		*stringval = vim_strsave(*(char_u **)(varp));
9065 	}
9066 	return 0;
9067     }
9068 
9069     if (varp == NULL)		    /* hidden option */
9070 	return -1;
9071     if (options[opt_idx].flags & P_NUM)
9072 	*numval = *(long *)varp;
9073     else
9074     {
9075 	/* Special case: 'modified' is b_changed, but we also want to consider
9076 	 * it set when 'ff' or 'fenc' changed. */
9077 	if ((int *)varp == &curbuf->b_changed)
9078 	    *numval = curbufIsChanged();
9079 	else
9080 	    *numval = *(int *)varp;
9081     }
9082     return 1;
9083 }
9084 #endif
9085 
9086 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO)
9087 /*
9088  * Returns the option attributes and its value. Unlike the above function it
9089  * will return either global value or local value of the option depending on
9090  * what was requested, but it will never return global value if it was
9091  * requested to return local one and vice versa. Neither it will return
9092  * buffer-local value if it was requested to return window-local one.
9093  *
9094  * Pretends that option is absent if it is not present in the requested scope
9095  * (i.e. has no global, window-local or buffer-local value depending on
9096  * opt_type). Uses
9097  *
9098  * Returned flags:
9099  *       0 hidden or unknown option, also option that does not have requested
9100  *	   type (see SREQ_* in vim.h)
9101  *  see SOPT_* in vim.h for other flags
9102  *
9103  * Possible opt_type values: see SREQ_* in vim.h
9104  */
9105     int
9106 get_option_value_strict(
9107     char_u	*name,
9108     long	*numval,
9109     char_u	**stringval,	    /* NULL when only obtaining attributes */
9110     int		opt_type,
9111     void	*from)
9112 {
9113     int		opt_idx;
9114     char_u	*varp = NULL;
9115     struct vimoption *p;
9116     int		r = 0;
9117 
9118     opt_idx = findoption(name);
9119     if (opt_idx < 0)
9120 	return 0;
9121 
9122     p = &(options[opt_idx]);
9123 
9124     /* Hidden option */
9125     if (p->var == NULL)
9126 	return 0;
9127 
9128     if (p->flags & P_BOOL)
9129 	r |= SOPT_BOOL;
9130     else if (p->flags & P_NUM)
9131 	r |= SOPT_NUM;
9132     else if (p->flags & P_STRING)
9133 	r |= SOPT_STRING;
9134 
9135     if (p->indir == PV_NONE)
9136     {
9137 	if (opt_type == SREQ_GLOBAL)
9138 	    r |= SOPT_GLOBAL;
9139 	else
9140 	    return 0; /* Did not request global-only option */
9141     }
9142     else
9143     {
9144 	if (p->indir & PV_BOTH)
9145 	    r |= SOPT_GLOBAL;
9146 	else if (opt_type == SREQ_GLOBAL)
9147 	    return 0; /* Requested global option */
9148 
9149 	if (p->indir & PV_WIN)
9150 	{
9151 	    if (opt_type == SREQ_BUF)
9152 		return 0; /* Did not request window-local option */
9153 	    else
9154 		r |= SOPT_WIN;
9155 	}
9156 	else if (p->indir & PV_BUF)
9157 	{
9158 	    if (opt_type == SREQ_WIN)
9159 		return 0; /* Did not request buffer-local option */
9160 	    else
9161 		r |= SOPT_BUF;
9162 	}
9163     }
9164 
9165     if (stringval == NULL)
9166 	return r;
9167 
9168     if (opt_type == SREQ_GLOBAL)
9169 	varp = p->var;
9170     else
9171     {
9172 	if (opt_type == SREQ_BUF)
9173 	{
9174 	    /* Special case: 'modified' is b_changed, but we also want to
9175 	     * consider it set when 'ff' or 'fenc' changed. */
9176 	    if (p->indir == PV_MOD)
9177 	    {
9178 		*numval = bufIsChanged((buf_T *) from);
9179 		varp = NULL;
9180 	    }
9181 #ifdef FEAT_CRYPT
9182 	    else if (p->indir == PV_KEY)
9183 	    {
9184 		/* never return the value of the crypt key */
9185 		*stringval = NULL;
9186 		varp = NULL;
9187 	    }
9188 #endif
9189 	    else
9190 	    {
9191 		aco_save_T	aco;
9192 		aucmd_prepbuf(&aco, (buf_T *) from);
9193 		varp = get_varp(p);
9194 		aucmd_restbuf(&aco);
9195 	    }
9196 	}
9197 	else if (opt_type == SREQ_WIN)
9198 	{
9199 	    win_T	*save_curwin;
9200 	    save_curwin = curwin;
9201 	    curwin = (win_T *) from;
9202 	    curbuf = curwin->w_buffer;
9203 	    varp = get_varp(p);
9204 	    curwin = save_curwin;
9205 	    curbuf = curwin->w_buffer;
9206 	}
9207 	if (varp == p->var)
9208 	    return (r | SOPT_UNSET);
9209     }
9210 
9211     if (varp != NULL)
9212     {
9213 	if (p->flags & P_STRING)
9214 	    *stringval = vim_strsave(*(char_u **)(varp));
9215 	else if (p->flags & P_NUM)
9216 	    *numval = *(long *) varp;
9217 	else
9218 	    *numval = *(int *)varp;
9219     }
9220 
9221     return r;
9222 }
9223 
9224 /*
9225  * Iterate over options. First argument is a pointer to a pointer to a
9226  * structure inside options[] array, second is option type like in the above
9227  * function.
9228  *
9229  * If first argument points to NULL it is assumed that iteration just started
9230  * and caller needs the very first value.
9231  * If first argument points to the end marker function returns NULL and sets
9232  * first argument to NULL.
9233  *
9234  * Returns full option name for current option on each call.
9235  */
9236     char_u *
9237 option_iter_next(void **option, int opt_type)
9238 {
9239     struct vimoption	*ret = NULL;
9240     do
9241     {
9242 	if (*option == NULL)
9243 	    *option = (void *) options;
9244 	else if (((struct vimoption *) (*option))->fullname == NULL)
9245 	{
9246 	    *option = NULL;
9247 	    return NULL;
9248 	}
9249 	else
9250 	    *option = (void *) (((struct vimoption *) (*option)) + 1);
9251 
9252 	ret = ((struct vimoption *) (*option));
9253 
9254 	/* Hidden option */
9255 	if (ret->var == NULL)
9256 	{
9257 	    ret = NULL;
9258 	    continue;
9259 	}
9260 
9261 	switch (opt_type)
9262 	{
9263 	    case SREQ_GLOBAL:
9264 		if (!(ret->indir == PV_NONE || ret->indir & PV_BOTH))
9265 		    ret = NULL;
9266 		break;
9267 	    case SREQ_BUF:
9268 		if (!(ret->indir & PV_BUF))
9269 		    ret = NULL;
9270 		break;
9271 	    case SREQ_WIN:
9272 		if (!(ret->indir & PV_WIN))
9273 		    ret = NULL;
9274 		break;
9275 	    default:
9276 		EMSG2(_(e_intern2), "option_iter_next()");
9277 		return NULL;
9278 	}
9279     }
9280     while (ret == NULL);
9281 
9282     return (char_u *)ret->fullname;
9283 }
9284 #endif
9285 
9286 /*
9287  * Set the value of option "name".
9288  * Use "string" for string options, use "number" for other options.
9289  *
9290  * Returns NULL on success or error message on error.
9291  */
9292     char_u *
9293 set_option_value(
9294     char_u	*name,
9295     long	number,
9296     char_u	*string,
9297     int		opt_flags)	/* OPT_LOCAL or 0 (both) */
9298 {
9299     int		opt_idx;
9300     char_u	*varp;
9301     long_u	flags;
9302 
9303     opt_idx = findoption(name);
9304     if (opt_idx < 0)
9305 	EMSG2(_("E355: Unknown option: %s"), name);
9306     else
9307     {
9308 	flags = options[opt_idx].flags;
9309 #ifdef HAVE_SANDBOX
9310 	/* Disallow changing some options in the sandbox */
9311 	if (sandbox > 0 && (flags & P_SECURE))
9312 	{
9313 	    EMSG(_(e_sandbox));
9314 	    return NULL;
9315 	}
9316 #endif
9317 	if (flags & P_STRING)
9318 	    return set_string_option(opt_idx, string, opt_flags);
9319 	else
9320 	{
9321 	    varp = get_varp_scope(&(options[opt_idx]), opt_flags);
9322 	    if (varp != NULL)	/* hidden option is not changed */
9323 	    {
9324 		if (number == 0 && string != NULL)
9325 		{
9326 		    int idx;
9327 
9328 		    /* Either we are given a string or we are setting option
9329 		     * to zero. */
9330 		    for (idx = 0; string[idx] == '0'; ++idx)
9331 			;
9332 		    if (string[idx] != NUL || idx == 0)
9333 		    {
9334 			/* There's another character after zeros or the string
9335 			 * is empty.  In both cases, we are trying to set a
9336 			 * num option using a string. */
9337 			EMSG3(_("E521: Number required: &%s = '%s'"),
9338 								name, string);
9339 			return NULL;     /* do nothing as we hit an error */
9340 
9341 		    }
9342 		}
9343 		if (flags & P_NUM)
9344 		    return set_num_option(opt_idx, varp, number,
9345 							  NULL, 0, opt_flags);
9346 		else
9347 		    return set_bool_option(opt_idx, varp, (int)number,
9348 								   opt_flags);
9349 	    }
9350 	}
9351     }
9352     return NULL;
9353 }
9354 
9355 /*
9356  * Get the terminal code for a terminal option.
9357  * Returns NULL when not found.
9358  */
9359     char_u *
9360 get_term_code(char_u *tname)
9361 {
9362     int	    opt_idx;
9363     char_u  *varp;
9364 
9365     if (tname[0] != 't' || tname[1] != '_' ||
9366 	    tname[2] == NUL || tname[3] == NUL)
9367 	return NULL;
9368     if ((opt_idx = findoption(tname)) >= 0)
9369     {
9370 	varp = get_varp(&(options[opt_idx]));
9371 	if (varp != NULL)
9372 	    varp = *(char_u **)(varp);
9373 	return varp;
9374     }
9375     return find_termcode(tname + 2);
9376 }
9377 
9378     char_u *
9379 get_highlight_default(void)
9380 {
9381     int i;
9382 
9383     i = findoption((char_u *)"hl");
9384     if (i >= 0)
9385 	return options[i].def_val[VI_DEFAULT];
9386     return (char_u *)NULL;
9387 }
9388 
9389 #if defined(FEAT_MBYTE) || defined(PROTO)
9390     char_u *
9391 get_encoding_default(void)
9392 {
9393     int i;
9394 
9395     i = findoption((char_u *)"enc");
9396     if (i >= 0)
9397 	return options[i].def_val[VI_DEFAULT];
9398     return (char_u *)NULL;
9399 }
9400 #endif
9401 
9402 /*
9403  * Translate a string like "t_xx", "<t_xx>" or "<S-Tab>" to a key number.
9404  */
9405     static int
9406 find_key_option(char_u *arg)
9407 {
9408     int		key;
9409     int		modifiers;
9410 
9411     /*
9412      * Don't use get_special_key_code() for t_xx, we don't want it to call
9413      * add_termcap_entry().
9414      */
9415     if (arg[0] == 't' && arg[1] == '_' && arg[2] && arg[3])
9416 	key = TERMCAP2KEY(arg[2], arg[3]);
9417     else
9418     {
9419 	--arg;			    /* put arg at the '<' */
9420 	modifiers = 0;
9421 	key = find_special_key(&arg, &modifiers, TRUE, TRUE);
9422 	if (modifiers)		    /* can't handle modifiers here */
9423 	    key = 0;
9424     }
9425     return key;
9426 }
9427 
9428 /*
9429  * if 'all' == 0: show changed options
9430  * if 'all' == 1: show all normal options
9431  * if 'all' == 2: show all terminal options
9432  */
9433     static void
9434 showoptions(
9435     int		all,
9436     int		opt_flags)	/* OPT_LOCAL and/or OPT_GLOBAL */
9437 {
9438     struct vimoption	*p;
9439     int			col;
9440     int			isterm;
9441     char_u		*varp;
9442     struct vimoption	**items;
9443     int			item_count;
9444     int			run;
9445     int			row, rows;
9446     int			cols;
9447     int			i;
9448     int			len;
9449 
9450 #define INC 20
9451 #define GAP 3
9452 
9453     items = (struct vimoption **)alloc((unsigned)(sizeof(struct vimoption *) *
9454 								PARAM_COUNT));
9455     if (items == NULL)
9456 	return;
9457 
9458     /* Highlight title */
9459     if (all == 2)
9460 	MSG_PUTS_TITLE(_("\n--- Terminal codes ---"));
9461     else if (opt_flags & OPT_GLOBAL)
9462 	MSG_PUTS_TITLE(_("\n--- Global option values ---"));
9463     else if (opt_flags & OPT_LOCAL)
9464 	MSG_PUTS_TITLE(_("\n--- Local option values ---"));
9465     else
9466 	MSG_PUTS_TITLE(_("\n--- Options ---"));
9467 
9468     /*
9469      * do the loop two times:
9470      * 1. display the short items
9471      * 2. display the long items (only strings and numbers)
9472      */
9473     for (run = 1; run <= 2 && !got_int; ++run)
9474     {
9475 	/*
9476 	 * collect the items in items[]
9477 	 */
9478 	item_count = 0;
9479 	for (p = &options[0]; p->fullname != NULL; p++)
9480 	{
9481 	    varp = NULL;
9482 	    isterm = istermoption(p);
9483 	    if (opt_flags != 0)
9484 	    {
9485 		if (p->indir != PV_NONE && !isterm)
9486 		    varp = get_varp_scope(p, opt_flags);
9487 	    }
9488 	    else
9489 		varp = get_varp(p);
9490 	    if (varp != NULL
9491 		    && ((all == 2 && isterm)
9492 			|| (all == 1 && !isterm)
9493 			|| (all == 0 && !optval_default(p, varp))))
9494 	    {
9495 		if (p->flags & P_BOOL)
9496 		    len = 1;		/* a toggle option fits always */
9497 		else
9498 		{
9499 		    option_value2string(p, opt_flags);
9500 		    len = (int)STRLEN(p->fullname) + vim_strsize(NameBuff) + 1;
9501 		}
9502 		if ((len <= INC - GAP && run == 1) ||
9503 						(len > INC - GAP && run == 2))
9504 		    items[item_count++] = p;
9505 	    }
9506 	}
9507 
9508 	/*
9509 	 * display the items
9510 	 */
9511 	if (run == 1)
9512 	{
9513 	    cols = (Columns + GAP - 3) / INC;
9514 	    if (cols == 0)
9515 		cols = 1;
9516 	    rows = (item_count + cols - 1) / cols;
9517 	}
9518 	else	/* run == 2 */
9519 	    rows = item_count;
9520 	for (row = 0; row < rows && !got_int; ++row)
9521 	{
9522 	    msg_putchar('\n');			/* go to next line */
9523 	    if (got_int)			/* 'q' typed in more */
9524 		break;
9525 	    col = 0;
9526 	    for (i = row; i < item_count; i += rows)
9527 	    {
9528 		msg_col = col;			/* make columns */
9529 		showoneopt(items[i], opt_flags);
9530 		col += INC;
9531 	    }
9532 	    out_flush();
9533 	    ui_breakcheck();
9534 	}
9535     }
9536     vim_free(items);
9537 }
9538 
9539 /*
9540  * Return TRUE if option "p" has its default value.
9541  */
9542     static int
9543 optval_default(struct vimoption *p, char_u *varp)
9544 {
9545     int		dvi;
9546 
9547     if (varp == NULL)
9548 	return TRUE;	    /* hidden option is always at default */
9549     dvi = ((p->flags & P_VI_DEF) || p_cp) ? VI_DEFAULT : VIM_DEFAULT;
9550     if (p->flags & P_NUM)
9551 	return (*(long *)varp == (long)(long_i)p->def_val[dvi]);
9552     if (p->flags & P_BOOL)
9553 			/* the cast to long is required for Manx C, long_i is
9554 			 * needed for MSVC */
9555 	return (*(int *)varp == (int)(long)(long_i)p->def_val[dvi]);
9556     /* P_STRING */
9557     return (STRCMP(*(char_u **)varp, p->def_val[dvi]) == 0);
9558 }
9559 
9560 /*
9561  * showoneopt: show the value of one option
9562  * must not be called with a hidden option!
9563  */
9564     static void
9565 showoneopt(
9566     struct vimoption	*p,
9567     int			opt_flags)	/* OPT_LOCAL or OPT_GLOBAL */
9568 {
9569     char_u	*varp;
9570     int		save_silent = silent_mode;
9571 
9572     silent_mode = FALSE;
9573     info_message = TRUE;	/* use mch_msg(), not mch_errmsg() */
9574 
9575     varp = get_varp_scope(p, opt_flags);
9576 
9577     /* for 'modified' we also need to check if 'ff' or 'fenc' changed. */
9578     if ((p->flags & P_BOOL) && ((int *)varp == &curbuf->b_changed
9579 					? !curbufIsChanged() : !*(int *)varp))
9580 	MSG_PUTS("no");
9581     else if ((p->flags & P_BOOL) && *(int *)varp < 0)
9582 	MSG_PUTS("--");
9583     else
9584 	MSG_PUTS("  ");
9585     MSG_PUTS(p->fullname);
9586     if (!(p->flags & P_BOOL))
9587     {
9588 	msg_putchar('=');
9589 	/* put value string in NameBuff */
9590 	option_value2string(p, opt_flags);
9591 	msg_outtrans(NameBuff);
9592     }
9593 
9594     silent_mode = save_silent;
9595     info_message = FALSE;
9596 }
9597 
9598 /*
9599  * Write modified options as ":set" commands to a file.
9600  *
9601  * There are three values for "opt_flags":
9602  * OPT_GLOBAL:		   Write global option values and fresh values of
9603  *			   buffer-local options (used for start of a session
9604  *			   file).
9605  * OPT_GLOBAL + OPT_LOCAL: Idem, add fresh values of window-local options for
9606  *			   curwin (used for a vimrc file).
9607  * OPT_LOCAL:		   Write buffer-local option values for curbuf, fresh
9608  *			   and local values for window-local options of
9609  *			   curwin.  Local values are also written when at the
9610  *			   default value, because a modeline or autocommand
9611  *			   may have set them when doing ":edit file" and the
9612  *			   user has set them back at the default or fresh
9613  *			   value.
9614  *			   When "local_only" is TRUE, don't write fresh
9615  *			   values, only local values (for ":mkview").
9616  * (fresh value = value used for a new buffer or window for a local option).
9617  *
9618  * Return FAIL on error, OK otherwise.
9619  */
9620     int
9621 makeset(FILE *fd, int opt_flags, int local_only)
9622 {
9623     struct vimoption	*p;
9624     char_u		*varp;			/* currently used value */
9625     char_u		*varp_fresh;		/* local value */
9626     char_u		*varp_local = NULL;	/* fresh value */
9627     char		*cmd;
9628     int			round;
9629     int			pri;
9630 
9631     /*
9632      * The options that don't have a default (terminal name, columns, lines)
9633      * are never written.  Terminal options are also not written.
9634      * Do the loop over "options[]" twice: once for options with the
9635      * P_PRI_MKRC flag and once without.
9636      */
9637     for (pri = 1; pri >= 0; --pri)
9638     {
9639       for (p = &options[0]; !istermoption(p); p++)
9640 	if (!(p->flags & P_NO_MKRC)
9641 		&& !istermoption(p)
9642 		&& ((pri == 1) == ((p->flags & P_PRI_MKRC) != 0)))
9643 	{
9644 	    /* skip global option when only doing locals */
9645 	    if (p->indir == PV_NONE && !(opt_flags & OPT_GLOBAL))
9646 		continue;
9647 
9648 	    /* Do not store options like 'bufhidden' and 'syntax' in a vimrc
9649 	     * file, they are always buffer-specific. */
9650 	    if ((opt_flags & OPT_GLOBAL) && (p->flags & P_NOGLOB))
9651 		continue;
9652 
9653 	    /* Global values are only written when not at the default value. */
9654 	    varp = get_varp_scope(p, opt_flags);
9655 	    if ((opt_flags & OPT_GLOBAL) && optval_default(p, varp))
9656 		continue;
9657 
9658 	    round = 2;
9659 	    if (p->indir != PV_NONE)
9660 	    {
9661 		if (p->var == VAR_WIN)
9662 		{
9663 		    /* skip window-local option when only doing globals */
9664 		    if (!(opt_flags & OPT_LOCAL))
9665 			continue;
9666 		    /* When fresh value of window-local option is not at the
9667 		     * default, need to write it too. */
9668 		    if (!(opt_flags & OPT_GLOBAL) && !local_only)
9669 		    {
9670 			varp_fresh = get_varp_scope(p, OPT_GLOBAL);
9671 			if (!optval_default(p, varp_fresh))
9672 			{
9673 			    round = 1;
9674 			    varp_local = varp;
9675 			    varp = varp_fresh;
9676 			}
9677 		    }
9678 		}
9679 	    }
9680 
9681 	    /* Round 1: fresh value for window-local options.
9682 	     * Round 2: other values */
9683 	    for ( ; round <= 2; varp = varp_local, ++round)
9684 	    {
9685 		if (round == 1 || (opt_flags & OPT_GLOBAL))
9686 		    cmd = "set";
9687 		else
9688 		    cmd = "setlocal";
9689 
9690 		if (p->flags & P_BOOL)
9691 		{
9692 		    if (put_setbool(fd, cmd, p->fullname, *(int *)varp) == FAIL)
9693 			return FAIL;
9694 		}
9695 		else if (p->flags & P_NUM)
9696 		{
9697 		    if (put_setnum(fd, cmd, p->fullname, (long *)varp) == FAIL)
9698 			return FAIL;
9699 		}
9700 		else    /* P_STRING */
9701 		{
9702 #if defined(FEAT_SYN_HL) || defined(FEAT_AUTOCMD)
9703 		    int		do_endif = FALSE;
9704 
9705 		    /* Don't set 'syntax' and 'filetype' again if the value is
9706 		     * already right, avoids reloading the syntax file. */
9707 		    if (
9708 # if defined(FEAT_SYN_HL)
9709 			    p->indir == PV_SYN
9710 #  if defined(FEAT_AUTOCMD)
9711 			    ||
9712 #  endif
9713 # endif
9714 # if defined(FEAT_AUTOCMD)
9715 			    p->indir == PV_FT
9716 # endif
9717 			    )
9718 		    {
9719 			if (fprintf(fd, "if &%s != '%s'", p->fullname,
9720 						       *(char_u **)(varp)) < 0
9721 				|| put_eol(fd) < 0)
9722 			    return FAIL;
9723 			do_endif = TRUE;
9724 		    }
9725 #endif
9726 		    if (put_setstring(fd, cmd, p->fullname, (char_u **)varp,
9727 					  (p->flags & P_EXPAND) != 0) == FAIL)
9728 			return FAIL;
9729 #if defined(FEAT_SYN_HL) || defined(FEAT_AUTOCMD)
9730 		    if (do_endif)
9731 		    {
9732 			if (put_line(fd, "endif") == FAIL)
9733 			    return FAIL;
9734 		    }
9735 #endif
9736 		}
9737 	    }
9738 	}
9739     }
9740     return OK;
9741 }
9742 
9743 #if defined(FEAT_FOLDING) || defined(PROTO)
9744 /*
9745  * Generate set commands for the local fold options only.  Used when
9746  * 'sessionoptions' or 'viewoptions' contains "folds" but not "options".
9747  */
9748     int
9749 makefoldset(FILE *fd)
9750 {
9751     if (put_setstring(fd, "setlocal", "fdm", &curwin->w_p_fdm, FALSE) == FAIL
9752 # ifdef FEAT_EVAL
9753 	    || put_setstring(fd, "setlocal", "fde", &curwin->w_p_fde, FALSE)
9754 								       == FAIL
9755 # endif
9756 	    || put_setstring(fd, "setlocal", "fmr", &curwin->w_p_fmr, FALSE)
9757 								       == FAIL
9758 	    || put_setstring(fd, "setlocal", "fdi", &curwin->w_p_fdi, FALSE)
9759 								       == FAIL
9760 	    || put_setnum(fd, "setlocal", "fdl", &curwin->w_p_fdl) == FAIL
9761 	    || put_setnum(fd, "setlocal", "fml", &curwin->w_p_fml) == FAIL
9762 	    || put_setnum(fd, "setlocal", "fdn", &curwin->w_p_fdn) == FAIL
9763 	    || put_setbool(fd, "setlocal", "fen", curwin->w_p_fen) == FAIL
9764 	    )
9765 	return FAIL;
9766 
9767     return OK;
9768 }
9769 #endif
9770 
9771     static int
9772 put_setstring(
9773     FILE	*fd,
9774     char	*cmd,
9775     char	*name,
9776     char_u	**valuep,
9777     int		expand)
9778 {
9779     char_u	*s;
9780     char_u	*buf;
9781 
9782     if (fprintf(fd, "%s %s=", cmd, name) < 0)
9783 	return FAIL;
9784     if (*valuep != NULL)
9785     {
9786 	/* Output 'pastetoggle' as key names.  For other
9787 	 * options some characters have to be escaped with
9788 	 * CTRL-V or backslash */
9789 	if (valuep == &p_pt)
9790 	{
9791 	    s = *valuep;
9792 	    while (*s != NUL)
9793 		if (put_escstr(fd, str2special(&s, FALSE), 2) == FAIL)
9794 		    return FAIL;
9795 	}
9796 	else if (expand)
9797 	{
9798 	    buf = alloc(MAXPATHL);
9799 	    if (buf == NULL)
9800 		return FAIL;
9801 	    home_replace(NULL, *valuep, buf, MAXPATHL, FALSE);
9802 	    if (put_escstr(fd, buf, 2) == FAIL)
9803 	    {
9804 		vim_free(buf);
9805 		return FAIL;
9806 	    }
9807 	    vim_free(buf);
9808 	}
9809 	else if (put_escstr(fd, *valuep, 2) == FAIL)
9810 	    return FAIL;
9811     }
9812     if (put_eol(fd) < 0)
9813 	return FAIL;
9814     return OK;
9815 }
9816 
9817     static int
9818 put_setnum(
9819     FILE	*fd,
9820     char	*cmd,
9821     char	*name,
9822     long	*valuep)
9823 {
9824     long	wc;
9825 
9826     if (fprintf(fd, "%s %s=", cmd, name) < 0)
9827 	return FAIL;
9828     if (wc_use_keyname((char_u *)valuep, &wc))
9829     {
9830 	/* print 'wildchar' and 'wildcharm' as a key name */
9831 	if (fputs((char *)get_special_key_name((int)wc, 0), fd) < 0)
9832 	    return FAIL;
9833     }
9834     else if (fprintf(fd, "%ld", *valuep) < 0)
9835 	return FAIL;
9836     if (put_eol(fd) < 0)
9837 	return FAIL;
9838     return OK;
9839 }
9840 
9841     static int
9842 put_setbool(
9843     FILE	*fd,
9844     char	*cmd,
9845     char	*name,
9846     int		value)
9847 {
9848     if (value < 0)	/* global/local option using global value */
9849 	return OK;
9850     if (fprintf(fd, "%s %s%s", cmd, value ? "" : "no", name) < 0
9851 	    || put_eol(fd) < 0)
9852 	return FAIL;
9853     return OK;
9854 }
9855 
9856 /*
9857  * Clear all the terminal options.
9858  * If the option has been allocated, free the memory.
9859  * Terminal options are never hidden or indirect.
9860  */
9861     void
9862 clear_termoptions(void)
9863 {
9864     /*
9865      * Reset a few things before clearing the old options. This may cause
9866      * outputting a few things that the terminal doesn't understand, but the
9867      * screen will be cleared later, so this is OK.
9868      */
9869 #ifdef FEAT_MOUSE_TTY
9870     mch_setmouse(FALSE);	    /* switch mouse off */
9871 #endif
9872 #ifdef FEAT_TITLE
9873     mch_restore_title(3);	    /* restore window titles */
9874 #endif
9875 #if defined(FEAT_XCLIPBOARD) && defined(FEAT_GUI)
9876     /* When starting the GUI close the display opened for the clipboard.
9877      * After restoring the title, because that will need the display. */
9878     if (gui.starting)
9879 	clear_xterm_clip();
9880 #endif
9881 #ifdef WIN3264
9882     /*
9883      * Check if this is allowed now.
9884      */
9885     if (can_end_termcap_mode(FALSE) == TRUE)
9886 #endif
9887 	stoptermcap();			/* stop termcap mode */
9888 
9889     free_termoptions();
9890 }
9891 
9892     void
9893 free_termoptions(void)
9894 {
9895     struct vimoption   *p;
9896 
9897     for (p = &options[0]; p->fullname != NULL; p++)
9898 	if (istermoption(p))
9899 	{
9900 	    if (p->flags & P_ALLOCED)
9901 		free_string_option(*(char_u **)(p->var));
9902 	    if (p->flags & P_DEF_ALLOCED)
9903 		free_string_option(p->def_val[VI_DEFAULT]);
9904 	    *(char_u **)(p->var) = empty_option;
9905 	    p->def_val[VI_DEFAULT] = empty_option;
9906 	    p->flags &= ~(P_ALLOCED|P_DEF_ALLOCED);
9907 	}
9908     clear_termcodes();
9909 }
9910 
9911 /*
9912  * Free the string for one term option, if it was allocated.
9913  * Set the string to empty_option and clear allocated flag.
9914  * "var" points to the option value.
9915  */
9916     void
9917 free_one_termoption(char_u *var)
9918 {
9919     struct vimoption   *p;
9920 
9921     for (p = &options[0]; p->fullname != NULL; p++)
9922 	if (p->var == var)
9923 	{
9924 	    if (p->flags & P_ALLOCED)
9925 		free_string_option(*(char_u **)(p->var));
9926 	    *(char_u **)(p->var) = empty_option;
9927 	    p->flags &= ~P_ALLOCED;
9928 	    break;
9929 	}
9930 }
9931 
9932 /*
9933  * Set the terminal option defaults to the current value.
9934  * Used after setting the terminal name.
9935  */
9936     void
9937 set_term_defaults(void)
9938 {
9939     struct vimoption   *p;
9940 
9941     for (p = &options[0]; p->fullname != NULL; p++)
9942     {
9943 	if (istermoption(p) && p->def_val[VI_DEFAULT] != *(char_u **)(p->var))
9944 	{
9945 	    if (p->flags & P_DEF_ALLOCED)
9946 	    {
9947 		free_string_option(p->def_val[VI_DEFAULT]);
9948 		p->flags &= ~P_DEF_ALLOCED;
9949 	    }
9950 	    p->def_val[VI_DEFAULT] = *(char_u **)(p->var);
9951 	    if (p->flags & P_ALLOCED)
9952 	    {
9953 		p->flags |= P_DEF_ALLOCED;
9954 		p->flags &= ~P_ALLOCED;	 /* don't free the value now */
9955 	    }
9956 	}
9957     }
9958 }
9959 
9960 /*
9961  * return TRUE if 'p' starts with 't_'
9962  */
9963     static int
9964 istermoption(struct vimoption *p)
9965 {
9966     return (p->fullname[0] == 't' && p->fullname[1] == '_');
9967 }
9968 
9969 /*
9970  * Compute columns for ruler and shown command. 'sc_col' is also used to
9971  * decide what the maximum length of a message on the status line can be.
9972  * If there is a status line for the last window, 'sc_col' is independent
9973  * of 'ru_col'.
9974  */
9975 
9976 #define COL_RULER 17	    /* columns needed by standard ruler */
9977 
9978     void
9979 comp_col(void)
9980 {
9981 #if defined(FEAT_CMDL_INFO) && defined(FEAT_WINDOWS)
9982     int last_has_status = (p_ls == 2 || (p_ls == 1 && firstwin != lastwin));
9983 
9984     sc_col = 0;
9985     ru_col = 0;
9986     if (p_ru)
9987     {
9988 #ifdef FEAT_STL_OPT
9989 	ru_col = (ru_wid ? ru_wid : COL_RULER) + 1;
9990 #else
9991 	ru_col = COL_RULER + 1;
9992 #endif
9993 	/* no last status line, adjust sc_col */
9994 	if (!last_has_status)
9995 	    sc_col = ru_col;
9996     }
9997     if (p_sc)
9998     {
9999 	sc_col += SHOWCMD_COLS;
10000 	if (!p_ru || last_has_status)	    /* no need for separating space */
10001 	    ++sc_col;
10002     }
10003     sc_col = Columns - sc_col;
10004     ru_col = Columns - ru_col;
10005     if (sc_col <= 0)		/* screen too narrow, will become a mess */
10006 	sc_col = 1;
10007     if (ru_col <= 0)
10008 	ru_col = 1;
10009 #else
10010     sc_col = Columns;
10011     ru_col = Columns;
10012 #endif
10013 }
10014 
10015 /*
10016  * Unset local option value, similar to ":set opt<".
10017  */
10018     void
10019 unset_global_local_option(char_u *name, void *from)
10020 {
10021     struct vimoption *p;
10022     int		opt_idx;
10023     buf_T	*buf = (buf_T *)from;
10024 
10025     opt_idx = findoption(name);
10026     if (opt_idx < 0)
10027 	return;
10028     p = &(options[opt_idx]);
10029 
10030     switch ((int)p->indir)
10031     {
10032 	/* global option with local value: use local value if it's been set */
10033 	case PV_EP:
10034 	    clear_string_option(&buf->b_p_ep);
10035 	    break;
10036 	case PV_KP:
10037 	    clear_string_option(&buf->b_p_kp);
10038 	    break;
10039 	case PV_PATH:
10040 	    clear_string_option(&buf->b_p_path);
10041 	    break;
10042 	case PV_AR:
10043 	    buf->b_p_ar = -1;
10044 	    break;
10045 	case PV_BKC:
10046 	    clear_string_option(&buf->b_p_bkc);
10047 	    buf->b_bkc_flags = 0;
10048 	    break;
10049 	case PV_TAGS:
10050 	    clear_string_option(&buf->b_p_tags);
10051 	    break;
10052 	case PV_TC:
10053 	    clear_string_option(&buf->b_p_tc);
10054 	    buf->b_tc_flags = 0;
10055 	    break;
10056 #ifdef FEAT_FIND_ID
10057 	case PV_DEF:
10058 	    clear_string_option(&buf->b_p_def);
10059 	    break;
10060 	case PV_INC:
10061 	    clear_string_option(&buf->b_p_inc);
10062 	    break;
10063 #endif
10064 #ifdef FEAT_INS_EXPAND
10065 	case PV_DICT:
10066 	    clear_string_option(&buf->b_p_dict);
10067 	    break;
10068 	case PV_TSR:
10069 	    clear_string_option(&buf->b_p_tsr);
10070 	    break;
10071 #endif
10072 #ifdef FEAT_QUICKFIX
10073 	case PV_EFM:
10074 	    clear_string_option(&buf->b_p_efm);
10075 	    break;
10076 	case PV_GP:
10077 	    clear_string_option(&buf->b_p_gp);
10078 	    break;
10079 	case PV_MP:
10080 	    clear_string_option(&buf->b_p_mp);
10081 	    break;
10082 #endif
10083 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
10084 	case PV_BEXPR:
10085 	    clear_string_option(&buf->b_p_bexpr);
10086 	    break;
10087 #endif
10088 #if defined(FEAT_CRYPT)
10089 	case PV_CM:
10090 	    clear_string_option(&buf->b_p_cm);
10091 	    break;
10092 #endif
10093 #ifdef FEAT_STL_OPT
10094 	case PV_STL:
10095 	    clear_string_option(&((win_T *)from)->w_p_stl);
10096 	    break;
10097 #endif
10098 	case PV_UL:
10099 	    buf->b_p_ul = NO_LOCAL_UNDOLEVEL;
10100 	    break;
10101 #ifdef FEAT_LISP
10102 	case PV_LW:
10103 	    clear_string_option(&buf->b_p_lw);
10104 	    break;
10105 #endif
10106     }
10107 }
10108 
10109 /*
10110  * Get pointer to option variable, depending on local or global scope.
10111  */
10112     static char_u *
10113 get_varp_scope(struct vimoption *p, int opt_flags)
10114 {
10115     if ((opt_flags & OPT_GLOBAL) && p->indir != PV_NONE)
10116     {
10117 	if (p->var == VAR_WIN)
10118 	    return (char_u *)GLOBAL_WO(get_varp(p));
10119 	return p->var;
10120     }
10121     if ((opt_flags & OPT_LOCAL) && ((int)p->indir & PV_BOTH))
10122     {
10123 	switch ((int)p->indir)
10124 	{
10125 #ifdef FEAT_QUICKFIX
10126 	    case PV_EFM:  return (char_u *)&(curbuf->b_p_efm);
10127 	    case PV_GP:   return (char_u *)&(curbuf->b_p_gp);
10128 	    case PV_MP:   return (char_u *)&(curbuf->b_p_mp);
10129 #endif
10130 	    case PV_EP:   return (char_u *)&(curbuf->b_p_ep);
10131 	    case PV_KP:   return (char_u *)&(curbuf->b_p_kp);
10132 	    case PV_PATH: return (char_u *)&(curbuf->b_p_path);
10133 	    case PV_AR:   return (char_u *)&(curbuf->b_p_ar);
10134 	    case PV_TAGS: return (char_u *)&(curbuf->b_p_tags);
10135 	    case PV_TC:   return (char_u *)&(curbuf->b_p_tc);
10136 #ifdef FEAT_FIND_ID
10137 	    case PV_DEF:  return (char_u *)&(curbuf->b_p_def);
10138 	    case PV_INC:  return (char_u *)&(curbuf->b_p_inc);
10139 #endif
10140 #ifdef FEAT_INS_EXPAND
10141 	    case PV_DICT: return (char_u *)&(curbuf->b_p_dict);
10142 	    case PV_TSR:  return (char_u *)&(curbuf->b_p_tsr);
10143 #endif
10144 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
10145 	    case PV_BEXPR: return (char_u *)&(curbuf->b_p_bexpr);
10146 #endif
10147 #if defined(FEAT_CRYPT)
10148 	    case PV_CM:	  return (char_u *)&(curbuf->b_p_cm);
10149 #endif
10150 #ifdef FEAT_STL_OPT
10151 	    case PV_STL:  return (char_u *)&(curwin->w_p_stl);
10152 #endif
10153 	    case PV_UL:   return (char_u *)&(curbuf->b_p_ul);
10154 #ifdef FEAT_LISP
10155 	    case PV_LW:   return (char_u *)&(curbuf->b_p_lw);
10156 #endif
10157 	    case PV_BKC:  return (char_u *)&(curbuf->b_p_bkc);
10158 	}
10159 	return NULL; /* "cannot happen" */
10160     }
10161     return get_varp(p);
10162 }
10163 
10164 /*
10165  * Get pointer to option variable.
10166  */
10167     static char_u *
10168 get_varp(struct vimoption *p)
10169 {
10170     /* hidden option, always return NULL */
10171     if (p->var == NULL)
10172 	return NULL;
10173 
10174     switch ((int)p->indir)
10175     {
10176 	case PV_NONE:	return p->var;
10177 
10178 	/* global option with local value: use local value if it's been set */
10179 	case PV_EP:	return *curbuf->b_p_ep != NUL
10180 				    ? (char_u *)&curbuf->b_p_ep : p->var;
10181 	case PV_KP:	return *curbuf->b_p_kp != NUL
10182 				    ? (char_u *)&curbuf->b_p_kp : p->var;
10183 	case PV_PATH:	return *curbuf->b_p_path != NUL
10184 				    ? (char_u *)&(curbuf->b_p_path) : p->var;
10185 	case PV_AR:	return curbuf->b_p_ar >= 0
10186 				    ? (char_u *)&(curbuf->b_p_ar) : p->var;
10187 	case PV_TAGS:	return *curbuf->b_p_tags != NUL
10188 				    ? (char_u *)&(curbuf->b_p_tags) : p->var;
10189 	case PV_TC:	return *curbuf->b_p_tc != NUL
10190 				    ? (char_u *)&(curbuf->b_p_tc) : p->var;
10191 	case PV_BKC:	return *curbuf->b_p_bkc != NUL
10192 				    ? (char_u *)&(curbuf->b_p_bkc) : p->var;
10193 #ifdef FEAT_FIND_ID
10194 	case PV_DEF:	return *curbuf->b_p_def != NUL
10195 				    ? (char_u *)&(curbuf->b_p_def) : p->var;
10196 	case PV_INC:	return *curbuf->b_p_inc != NUL
10197 				    ? (char_u *)&(curbuf->b_p_inc) : p->var;
10198 #endif
10199 #ifdef FEAT_INS_EXPAND
10200 	case PV_DICT:	return *curbuf->b_p_dict != NUL
10201 				    ? (char_u *)&(curbuf->b_p_dict) : p->var;
10202 	case PV_TSR:	return *curbuf->b_p_tsr != NUL
10203 				    ? (char_u *)&(curbuf->b_p_tsr) : p->var;
10204 #endif
10205 #ifdef FEAT_QUICKFIX
10206 	case PV_EFM:	return *curbuf->b_p_efm != NUL
10207 				    ? (char_u *)&(curbuf->b_p_efm) : p->var;
10208 	case PV_GP:	return *curbuf->b_p_gp != NUL
10209 				    ? (char_u *)&(curbuf->b_p_gp) : p->var;
10210 	case PV_MP:	return *curbuf->b_p_mp != NUL
10211 				    ? (char_u *)&(curbuf->b_p_mp) : p->var;
10212 #endif
10213 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
10214 	case PV_BEXPR:	return *curbuf->b_p_bexpr != NUL
10215 				    ? (char_u *)&(curbuf->b_p_bexpr) : p->var;
10216 #endif
10217 #if defined(FEAT_CRYPT)
10218 	case PV_CM:	return *curbuf->b_p_cm != NUL
10219 				    ? (char_u *)&(curbuf->b_p_cm) : p->var;
10220 #endif
10221 #ifdef FEAT_STL_OPT
10222 	case PV_STL:	return *curwin->w_p_stl != NUL
10223 				    ? (char_u *)&(curwin->w_p_stl) : p->var;
10224 #endif
10225 	case PV_UL:	return curbuf->b_p_ul != NO_LOCAL_UNDOLEVEL
10226 				    ? (char_u *)&(curbuf->b_p_ul) : p->var;
10227 #ifdef FEAT_LISP
10228 	case PV_LW:	return *curbuf->b_p_lw != NUL
10229 				    ? (char_u *)&(curbuf->b_p_lw) : p->var;
10230 #endif
10231 
10232 #ifdef FEAT_ARABIC
10233 	case PV_ARAB:	return (char_u *)&(curwin->w_p_arab);
10234 #endif
10235 	case PV_LIST:	return (char_u *)&(curwin->w_p_list);
10236 #ifdef FEAT_SPELL
10237 	case PV_SPELL:	return (char_u *)&(curwin->w_p_spell);
10238 #endif
10239 #ifdef FEAT_SYN_HL
10240 	case PV_CUC:	return (char_u *)&(curwin->w_p_cuc);
10241 	case PV_CUL:	return (char_u *)&(curwin->w_p_cul);
10242 	case PV_CC:	return (char_u *)&(curwin->w_p_cc);
10243 #endif
10244 #ifdef FEAT_DIFF
10245 	case PV_DIFF:	return (char_u *)&(curwin->w_p_diff);
10246 #endif
10247 #ifdef FEAT_FOLDING
10248 	case PV_FDC:	return (char_u *)&(curwin->w_p_fdc);
10249 	case PV_FEN:	return (char_u *)&(curwin->w_p_fen);
10250 	case PV_FDI:	return (char_u *)&(curwin->w_p_fdi);
10251 	case PV_FDL:	return (char_u *)&(curwin->w_p_fdl);
10252 	case PV_FDM:	return (char_u *)&(curwin->w_p_fdm);
10253 	case PV_FML:	return (char_u *)&(curwin->w_p_fml);
10254 	case PV_FDN:	return (char_u *)&(curwin->w_p_fdn);
10255 # ifdef FEAT_EVAL
10256 	case PV_FDE:	return (char_u *)&(curwin->w_p_fde);
10257 	case PV_FDT:	return (char_u *)&(curwin->w_p_fdt);
10258 # endif
10259 	case PV_FMR:	return (char_u *)&(curwin->w_p_fmr);
10260 #endif
10261 	case PV_NU:	return (char_u *)&(curwin->w_p_nu);
10262 	case PV_RNU:	return (char_u *)&(curwin->w_p_rnu);
10263 #ifdef FEAT_LINEBREAK
10264 	case PV_NUW:	return (char_u *)&(curwin->w_p_nuw);
10265 #endif
10266 #ifdef FEAT_WINDOWS
10267 	case PV_WFH:	return (char_u *)&(curwin->w_p_wfh);
10268 	case PV_WFW:	return (char_u *)&(curwin->w_p_wfw);
10269 #endif
10270 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
10271 	case PV_PVW:	return (char_u *)&(curwin->w_p_pvw);
10272 #endif
10273 #ifdef FEAT_RIGHTLEFT
10274 	case PV_RL:	return (char_u *)&(curwin->w_p_rl);
10275 	case PV_RLC:	return (char_u *)&(curwin->w_p_rlc);
10276 #endif
10277 	case PV_SCROLL:	return (char_u *)&(curwin->w_p_scr);
10278 	case PV_WRAP:	return (char_u *)&(curwin->w_p_wrap);
10279 #ifdef FEAT_LINEBREAK
10280 	case PV_LBR:	return (char_u *)&(curwin->w_p_lbr);
10281 	case PV_BRI:	return (char_u *)&(curwin->w_p_bri);
10282 	case PV_BRIOPT: return (char_u *)&(curwin->w_p_briopt);
10283 #endif
10284 #ifdef FEAT_SCROLLBIND
10285 	case PV_SCBIND: return (char_u *)&(curwin->w_p_scb);
10286 #endif
10287 #ifdef FEAT_CURSORBIND
10288 	case PV_CRBIND: return (char_u *)&(curwin->w_p_crb);
10289 #endif
10290 #ifdef FEAT_CONCEAL
10291 	case PV_COCU:    return (char_u *)&(curwin->w_p_cocu);
10292 	case PV_COLE:    return (char_u *)&(curwin->w_p_cole);
10293 #endif
10294 
10295 	case PV_AI:	return (char_u *)&(curbuf->b_p_ai);
10296 	case PV_BIN:	return (char_u *)&(curbuf->b_p_bin);
10297 #ifdef FEAT_MBYTE
10298 	case PV_BOMB:	return (char_u *)&(curbuf->b_p_bomb);
10299 #endif
10300 #if defined(FEAT_QUICKFIX)
10301 	case PV_BH:	return (char_u *)&(curbuf->b_p_bh);
10302 	case PV_BT:	return (char_u *)&(curbuf->b_p_bt);
10303 #endif
10304 	case PV_BL:	return (char_u *)&(curbuf->b_p_bl);
10305 	case PV_CI:	return (char_u *)&(curbuf->b_p_ci);
10306 #ifdef FEAT_CINDENT
10307 	case PV_CIN:	return (char_u *)&(curbuf->b_p_cin);
10308 	case PV_CINK:	return (char_u *)&(curbuf->b_p_cink);
10309 	case PV_CINO:	return (char_u *)&(curbuf->b_p_cino);
10310 #endif
10311 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
10312 	case PV_CINW:	return (char_u *)&(curbuf->b_p_cinw);
10313 #endif
10314 #ifdef FEAT_COMMENTS
10315 	case PV_COM:	return (char_u *)&(curbuf->b_p_com);
10316 #endif
10317 #ifdef FEAT_FOLDING
10318 	case PV_CMS:	return (char_u *)&(curbuf->b_p_cms);
10319 #endif
10320 #ifdef FEAT_INS_EXPAND
10321 	case PV_CPT:	return (char_u *)&(curbuf->b_p_cpt);
10322 #endif
10323 #ifdef FEAT_COMPL_FUNC
10324 	case PV_CFU:	return (char_u *)&(curbuf->b_p_cfu);
10325 	case PV_OFU:	return (char_u *)&(curbuf->b_p_ofu);
10326 #endif
10327 	case PV_EOL:	return (char_u *)&(curbuf->b_p_eol);
10328 	case PV_FIXEOL:	return (char_u *)&(curbuf->b_p_fixeol);
10329 	case PV_ET:	return (char_u *)&(curbuf->b_p_et);
10330 #ifdef FEAT_MBYTE
10331 	case PV_FENC:	return (char_u *)&(curbuf->b_p_fenc);
10332 #endif
10333 	case PV_FF:	return (char_u *)&(curbuf->b_p_ff);
10334 #ifdef FEAT_AUTOCMD
10335 	case PV_FT:	return (char_u *)&(curbuf->b_p_ft);
10336 #endif
10337 	case PV_FO:	return (char_u *)&(curbuf->b_p_fo);
10338 	case PV_FLP:	return (char_u *)&(curbuf->b_p_flp);
10339 	case PV_IMI:	return (char_u *)&(curbuf->b_p_iminsert);
10340 	case PV_IMS:	return (char_u *)&(curbuf->b_p_imsearch);
10341 	case PV_INF:	return (char_u *)&(curbuf->b_p_inf);
10342 	case PV_ISK:	return (char_u *)&(curbuf->b_p_isk);
10343 #ifdef FEAT_FIND_ID
10344 # ifdef FEAT_EVAL
10345 	case PV_INEX:	return (char_u *)&(curbuf->b_p_inex);
10346 # endif
10347 #endif
10348 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
10349 	case PV_INDE:	return (char_u *)&(curbuf->b_p_inde);
10350 	case PV_INDK:	return (char_u *)&(curbuf->b_p_indk);
10351 #endif
10352 #ifdef FEAT_EVAL
10353 	case PV_FEX:	return (char_u *)&(curbuf->b_p_fex);
10354 #endif
10355 #ifdef FEAT_CRYPT
10356 	case PV_KEY:	return (char_u *)&(curbuf->b_p_key);
10357 #endif
10358 #ifdef FEAT_LISP
10359 	case PV_LISP:	return (char_u *)&(curbuf->b_p_lisp);
10360 #endif
10361 	case PV_ML:	return (char_u *)&(curbuf->b_p_ml);
10362 	case PV_MPS:	return (char_u *)&(curbuf->b_p_mps);
10363 	case PV_MA:	return (char_u *)&(curbuf->b_p_ma);
10364 	case PV_MOD:	return (char_u *)&(curbuf->b_changed);
10365 	case PV_NF:	return (char_u *)&(curbuf->b_p_nf);
10366 	case PV_PI:	return (char_u *)&(curbuf->b_p_pi);
10367 #ifdef FEAT_TEXTOBJ
10368 	case PV_QE:	return (char_u *)&(curbuf->b_p_qe);
10369 #endif
10370 	case PV_RO:	return (char_u *)&(curbuf->b_p_ro);
10371 #ifdef FEAT_SMARTINDENT
10372 	case PV_SI:	return (char_u *)&(curbuf->b_p_si);
10373 #endif
10374 	case PV_SN:	return (char_u *)&(curbuf->b_p_sn);
10375 	case PV_STS:	return (char_u *)&(curbuf->b_p_sts);
10376 #ifdef FEAT_SEARCHPATH
10377 	case PV_SUA:	return (char_u *)&(curbuf->b_p_sua);
10378 #endif
10379 	case PV_SWF:	return (char_u *)&(curbuf->b_p_swf);
10380 #ifdef FEAT_SYN_HL
10381 	case PV_SMC:	return (char_u *)&(curbuf->b_p_smc);
10382 	case PV_SYN:	return (char_u *)&(curbuf->b_p_syn);
10383 #endif
10384 #ifdef FEAT_SPELL
10385 	case PV_SPC:	return (char_u *)&(curwin->w_s->b_p_spc);
10386 	case PV_SPF:	return (char_u *)&(curwin->w_s->b_p_spf);
10387 	case PV_SPL:	return (char_u *)&(curwin->w_s->b_p_spl);
10388 #endif
10389 	case PV_SW:	return (char_u *)&(curbuf->b_p_sw);
10390 	case PV_TS:	return (char_u *)&(curbuf->b_p_ts);
10391 	case PV_TW:	return (char_u *)&(curbuf->b_p_tw);
10392 	case PV_TX:	return (char_u *)&(curbuf->b_p_tx);
10393 #ifdef FEAT_PERSISTENT_UNDO
10394 	case PV_UDF:	return (char_u *)&(curbuf->b_p_udf);
10395 #endif
10396 	case PV_WM:	return (char_u *)&(curbuf->b_p_wm);
10397 #ifdef FEAT_KEYMAP
10398 	case PV_KMAP:	return (char_u *)&(curbuf->b_p_keymap);
10399 #endif
10400 	default:	EMSG(_("E356: get_varp ERROR"));
10401     }
10402     /* always return a valid pointer to avoid a crash! */
10403     return (char_u *)&(curbuf->b_p_wm);
10404 }
10405 
10406 /*
10407  * Get the value of 'equalprg', either the buffer-local one or the global one.
10408  */
10409     char_u *
10410 get_equalprg(void)
10411 {
10412     if (*curbuf->b_p_ep == NUL)
10413 	return p_ep;
10414     return curbuf->b_p_ep;
10415 }
10416 
10417 #if defined(FEAT_WINDOWS) || defined(PROTO)
10418 /*
10419  * Copy options from one window to another.
10420  * Used when splitting a window.
10421  */
10422     void
10423 win_copy_options(win_T *wp_from, win_T *wp_to)
10424 {
10425     copy_winopt(&wp_from->w_onebuf_opt, &wp_to->w_onebuf_opt);
10426     copy_winopt(&wp_from->w_allbuf_opt, &wp_to->w_allbuf_opt);
10427 # ifdef FEAT_RIGHTLEFT
10428 #  ifdef FEAT_FKMAP
10429     /* Is this right? */
10430     wp_to->w_farsi = wp_from->w_farsi;
10431 #  endif
10432 # endif
10433 #if defined(FEAT_LINEBREAK)
10434     briopt_check(wp_to);
10435 #endif
10436 }
10437 #endif
10438 
10439 /*
10440  * Copy the options from one winopt_T to another.
10441  * Doesn't free the old option values in "to", use clear_winopt() for that.
10442  * The 'scroll' option is not copied, because it depends on the window height.
10443  * The 'previewwindow' option is reset, there can be only one preview window.
10444  */
10445     void
10446 copy_winopt(winopt_T *from, winopt_T *to)
10447 {
10448 #ifdef FEAT_ARABIC
10449     to->wo_arab = from->wo_arab;
10450 #endif
10451     to->wo_list = from->wo_list;
10452     to->wo_nu = from->wo_nu;
10453     to->wo_rnu = from->wo_rnu;
10454 #ifdef FEAT_LINEBREAK
10455     to->wo_nuw = from->wo_nuw;
10456 #endif
10457 #ifdef FEAT_RIGHTLEFT
10458     to->wo_rl  = from->wo_rl;
10459     to->wo_rlc = vim_strsave(from->wo_rlc);
10460 #endif
10461 #ifdef FEAT_STL_OPT
10462     to->wo_stl = vim_strsave(from->wo_stl);
10463 #endif
10464     to->wo_wrap = from->wo_wrap;
10465 #ifdef FEAT_DIFF
10466     to->wo_wrap_save = from->wo_wrap_save;
10467 #endif
10468 #ifdef FEAT_LINEBREAK
10469     to->wo_lbr = from->wo_lbr;
10470     to->wo_bri = from->wo_bri;
10471     to->wo_briopt = vim_strsave(from->wo_briopt);
10472 #endif
10473 #ifdef FEAT_SCROLLBIND
10474     to->wo_scb = from->wo_scb;
10475     to->wo_scb_save = from->wo_scb_save;
10476 #endif
10477 #ifdef FEAT_CURSORBIND
10478     to->wo_crb = from->wo_crb;
10479     to->wo_crb_save = from->wo_crb_save;
10480 #endif
10481 #ifdef FEAT_SPELL
10482     to->wo_spell = from->wo_spell;
10483 #endif
10484 #ifdef FEAT_SYN_HL
10485     to->wo_cuc = from->wo_cuc;
10486     to->wo_cul = from->wo_cul;
10487     to->wo_cc = vim_strsave(from->wo_cc);
10488 #endif
10489 #ifdef FEAT_DIFF
10490     to->wo_diff = from->wo_diff;
10491     to->wo_diff_saved = from->wo_diff_saved;
10492 #endif
10493 #ifdef FEAT_CONCEAL
10494     to->wo_cocu = vim_strsave(from->wo_cocu);
10495     to->wo_cole = from->wo_cole;
10496 #endif
10497 #ifdef FEAT_FOLDING
10498     to->wo_fdc = from->wo_fdc;
10499     to->wo_fdc_save = from->wo_fdc_save;
10500     to->wo_fen = from->wo_fen;
10501     to->wo_fen_save = from->wo_fen_save;
10502     to->wo_fdi = vim_strsave(from->wo_fdi);
10503     to->wo_fml = from->wo_fml;
10504     to->wo_fdl = from->wo_fdl;
10505     to->wo_fdl_save = from->wo_fdl_save;
10506     to->wo_fdm = vim_strsave(from->wo_fdm);
10507     to->wo_fdm_save = from->wo_diff_saved
10508 			      ? vim_strsave(from->wo_fdm_save) : empty_option;
10509     to->wo_fdn = from->wo_fdn;
10510 # ifdef FEAT_EVAL
10511     to->wo_fde = vim_strsave(from->wo_fde);
10512     to->wo_fdt = vim_strsave(from->wo_fdt);
10513 # endif
10514     to->wo_fmr = vim_strsave(from->wo_fmr);
10515 #endif
10516     check_winopt(to);		/* don't want NULL pointers */
10517 }
10518 
10519 /*
10520  * Check string options in a window for a NULL value.
10521  */
10522     void
10523 check_win_options(win_T *win)
10524 {
10525     check_winopt(&win->w_onebuf_opt);
10526     check_winopt(&win->w_allbuf_opt);
10527 }
10528 
10529 /*
10530  * Check for NULL pointers in a winopt_T and replace them with empty_option.
10531  */
10532     static void
10533 check_winopt(winopt_T *wop UNUSED)
10534 {
10535 #ifdef FEAT_FOLDING
10536     check_string_option(&wop->wo_fdi);
10537     check_string_option(&wop->wo_fdm);
10538     check_string_option(&wop->wo_fdm_save);
10539 # ifdef FEAT_EVAL
10540     check_string_option(&wop->wo_fde);
10541     check_string_option(&wop->wo_fdt);
10542 # endif
10543     check_string_option(&wop->wo_fmr);
10544 #endif
10545 #ifdef FEAT_RIGHTLEFT
10546     check_string_option(&wop->wo_rlc);
10547 #endif
10548 #ifdef FEAT_STL_OPT
10549     check_string_option(&wop->wo_stl);
10550 #endif
10551 #ifdef FEAT_SYN_HL
10552     check_string_option(&wop->wo_cc);
10553 #endif
10554 #ifdef FEAT_CONCEAL
10555     check_string_option(&wop->wo_cocu);
10556 #endif
10557 #ifdef FEAT_LINEBREAK
10558     check_string_option(&wop->wo_briopt);
10559 #endif
10560 }
10561 
10562 /*
10563  * Free the allocated memory inside a winopt_T.
10564  */
10565     void
10566 clear_winopt(winopt_T *wop UNUSED)
10567 {
10568 #ifdef FEAT_FOLDING
10569     clear_string_option(&wop->wo_fdi);
10570     clear_string_option(&wop->wo_fdm);
10571     clear_string_option(&wop->wo_fdm_save);
10572 # ifdef FEAT_EVAL
10573     clear_string_option(&wop->wo_fde);
10574     clear_string_option(&wop->wo_fdt);
10575 # endif
10576     clear_string_option(&wop->wo_fmr);
10577 #endif
10578 #ifdef FEAT_LINEBREAK
10579     clear_string_option(&wop->wo_briopt);
10580 #endif
10581 #ifdef FEAT_RIGHTLEFT
10582     clear_string_option(&wop->wo_rlc);
10583 #endif
10584 #ifdef FEAT_STL_OPT
10585     clear_string_option(&wop->wo_stl);
10586 #endif
10587 #ifdef FEAT_SYN_HL
10588     clear_string_option(&wop->wo_cc);
10589 #endif
10590 #ifdef FEAT_CONCEAL
10591     clear_string_option(&wop->wo_cocu);
10592 #endif
10593 }
10594 
10595 /*
10596  * Copy global option values to local options for one buffer.
10597  * Used when creating a new buffer and sometimes when entering a buffer.
10598  * flags:
10599  * BCO_ENTER	We will enter the buf buffer.
10600  * BCO_ALWAYS	Always copy the options, but only set b_p_initialized when
10601  *		appropriate.
10602  * BCO_NOHELP	Don't copy the values to a help buffer.
10603  */
10604     void
10605 buf_copy_options(buf_T *buf, int flags)
10606 {
10607     int		should_copy = TRUE;
10608     char_u	*save_p_isk = NULL;	    /* init for GCC */
10609     int		dont_do_help;
10610     int		did_isk = FALSE;
10611 
10612     /*
10613      * Don't do anything if the buffer is invalid.
10614      */
10615     if (buf == NULL || !buf_valid(buf))
10616 	return;
10617 
10618     /*
10619      * Skip this when the option defaults have not been set yet.  Happens when
10620      * main() allocates the first buffer.
10621      */
10622     if (p_cpo != NULL)
10623     {
10624 	/*
10625 	 * Always copy when entering and 'cpo' contains 'S'.
10626 	 * Don't copy when already initialized.
10627 	 * Don't copy when 'cpo' contains 's' and not entering.
10628 	 * 'S'	BCO_ENTER  initialized	's'  should_copy
10629 	 * yes	  yes	       X	 X	TRUE
10630 	 * yes	  no	      yes	 X	FALSE
10631 	 * no	   X	      yes	 X	FALSE
10632 	 *  X	  no	      no	yes	FALSE
10633 	 *  X	  no	      no	no	TRUE
10634 	 * no	  yes	      no	 X	TRUE
10635 	 */
10636 	if ((vim_strchr(p_cpo, CPO_BUFOPTGLOB) == NULL || !(flags & BCO_ENTER))
10637 		&& (buf->b_p_initialized
10638 		    || (!(flags & BCO_ENTER)
10639 			&& vim_strchr(p_cpo, CPO_BUFOPT) != NULL)))
10640 	    should_copy = FALSE;
10641 
10642 	if (should_copy || (flags & BCO_ALWAYS))
10643 	{
10644 	    /* Don't copy the options specific to a help buffer when
10645 	     * BCO_NOHELP is given or the options were initialized already
10646 	     * (jumping back to a help file with CTRL-T or CTRL-O) */
10647 	    dont_do_help = ((flags & BCO_NOHELP) && buf->b_help)
10648 						       || buf->b_p_initialized;
10649 	    if (dont_do_help)		/* don't free b_p_isk */
10650 	    {
10651 		save_p_isk = buf->b_p_isk;
10652 		buf->b_p_isk = NULL;
10653 	    }
10654 	    /*
10655 	     * Always free the allocated strings.
10656 	     * If not already initialized, set 'readonly' and copy 'fileformat'.
10657 	     */
10658 	    if (!buf->b_p_initialized)
10659 	    {
10660 		free_buf_options(buf, TRUE);
10661 		buf->b_p_ro = FALSE;		/* don't copy readonly */
10662 		buf->b_p_tx = p_tx;
10663 #ifdef FEAT_MBYTE
10664 		buf->b_p_fenc = vim_strsave(p_fenc);
10665 #endif
10666 		buf->b_p_ff = vim_strsave(p_ff);
10667 #if defined(FEAT_QUICKFIX)
10668 		buf->b_p_bh = empty_option;
10669 		buf->b_p_bt = empty_option;
10670 #endif
10671 	    }
10672 	    else
10673 		free_buf_options(buf, FALSE);
10674 
10675 	    buf->b_p_ai = p_ai;
10676 	    buf->b_p_ai_nopaste = p_ai_nopaste;
10677 	    buf->b_p_sw = p_sw;
10678 	    buf->b_p_tw = p_tw;
10679 	    buf->b_p_tw_nopaste = p_tw_nopaste;
10680 	    buf->b_p_tw_nobin = p_tw_nobin;
10681 	    buf->b_p_wm = p_wm;
10682 	    buf->b_p_wm_nopaste = p_wm_nopaste;
10683 	    buf->b_p_wm_nobin = p_wm_nobin;
10684 	    buf->b_p_bin = p_bin;
10685 #ifdef FEAT_MBYTE
10686 	    buf->b_p_bomb = p_bomb;
10687 #endif
10688 	    buf->b_p_fixeol = p_fixeol;
10689 	    buf->b_p_et = p_et;
10690 	    buf->b_p_et_nobin = p_et_nobin;
10691 	    buf->b_p_et_nopaste = p_et_nopaste;
10692 	    buf->b_p_ml = p_ml;
10693 	    buf->b_p_ml_nobin = p_ml_nobin;
10694 	    buf->b_p_inf = p_inf;
10695 	    buf->b_p_swf = p_swf;
10696 #ifdef FEAT_INS_EXPAND
10697 	    buf->b_p_cpt = vim_strsave(p_cpt);
10698 #endif
10699 #ifdef FEAT_COMPL_FUNC
10700 	    buf->b_p_cfu = vim_strsave(p_cfu);
10701 	    buf->b_p_ofu = vim_strsave(p_ofu);
10702 #endif
10703 	    buf->b_p_sts = p_sts;
10704 	    buf->b_p_sts_nopaste = p_sts_nopaste;
10705 	    buf->b_p_sn = p_sn;
10706 #ifdef FEAT_COMMENTS
10707 	    buf->b_p_com = vim_strsave(p_com);
10708 #endif
10709 #ifdef FEAT_FOLDING
10710 	    buf->b_p_cms = vim_strsave(p_cms);
10711 #endif
10712 	    buf->b_p_fo = vim_strsave(p_fo);
10713 	    buf->b_p_flp = vim_strsave(p_flp);
10714 	    buf->b_p_nf = vim_strsave(p_nf);
10715 	    buf->b_p_mps = vim_strsave(p_mps);
10716 #ifdef FEAT_SMARTINDENT
10717 	    buf->b_p_si = p_si;
10718 #endif
10719 	    buf->b_p_ci = p_ci;
10720 #ifdef FEAT_CINDENT
10721 	    buf->b_p_cin = p_cin;
10722 	    buf->b_p_cink = vim_strsave(p_cink);
10723 	    buf->b_p_cino = vim_strsave(p_cino);
10724 #endif
10725 #ifdef FEAT_AUTOCMD
10726 	    /* Don't copy 'filetype', it must be detected */
10727 	    buf->b_p_ft = empty_option;
10728 #endif
10729 	    buf->b_p_pi = p_pi;
10730 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
10731 	    buf->b_p_cinw = vim_strsave(p_cinw);
10732 #endif
10733 #ifdef FEAT_LISP
10734 	    buf->b_p_lisp = p_lisp;
10735 #endif
10736 #ifdef FEAT_SYN_HL
10737 	    /* Don't copy 'syntax', it must be set */
10738 	    buf->b_p_syn = empty_option;
10739 	    buf->b_p_smc = p_smc;
10740 	    buf->b_s.b_syn_isk = empty_option;
10741 #endif
10742 #ifdef FEAT_SPELL
10743 	    buf->b_s.b_p_spc = vim_strsave(p_spc);
10744 	    (void)compile_cap_prog(&buf->b_s);
10745 	    buf->b_s.b_p_spf = vim_strsave(p_spf);
10746 	    buf->b_s.b_p_spl = vim_strsave(p_spl);
10747 #endif
10748 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
10749 	    buf->b_p_inde = vim_strsave(p_inde);
10750 	    buf->b_p_indk = vim_strsave(p_indk);
10751 #endif
10752 #if defined(FEAT_EVAL)
10753 	    buf->b_p_fex = vim_strsave(p_fex);
10754 #endif
10755 #ifdef FEAT_CRYPT
10756 	    buf->b_p_key = vim_strsave(p_key);
10757 #endif
10758 #ifdef FEAT_SEARCHPATH
10759 	    buf->b_p_sua = vim_strsave(p_sua);
10760 #endif
10761 #ifdef FEAT_KEYMAP
10762 	    buf->b_p_keymap = vim_strsave(p_keymap);
10763 	    buf->b_kmap_state |= KEYMAP_INIT;
10764 #endif
10765 	    /* This isn't really an option, but copying the langmap and IME
10766 	     * state from the current buffer is better than resetting it. */
10767 	    buf->b_p_iminsert = p_iminsert;
10768 	    buf->b_p_imsearch = p_imsearch;
10769 
10770 	    /* options that are normally global but also have a local value
10771 	     * are not copied, start using the global value */
10772 	    buf->b_p_ar = -1;
10773 	    buf->b_p_ul = NO_LOCAL_UNDOLEVEL;
10774 	    buf->b_p_bkc = empty_option;
10775 	    buf->b_bkc_flags = 0;
10776 #ifdef FEAT_QUICKFIX
10777 	    buf->b_p_gp = empty_option;
10778 	    buf->b_p_mp = empty_option;
10779 	    buf->b_p_efm = empty_option;
10780 #endif
10781 	    buf->b_p_ep = empty_option;
10782 	    buf->b_p_kp = empty_option;
10783 	    buf->b_p_path = empty_option;
10784 	    buf->b_p_tags = empty_option;
10785 	    buf->b_p_tc = empty_option;
10786 	    buf->b_tc_flags = 0;
10787 #ifdef FEAT_FIND_ID
10788 	    buf->b_p_def = empty_option;
10789 	    buf->b_p_inc = empty_option;
10790 # ifdef FEAT_EVAL
10791 	    buf->b_p_inex = vim_strsave(p_inex);
10792 # endif
10793 #endif
10794 #ifdef FEAT_INS_EXPAND
10795 	    buf->b_p_dict = empty_option;
10796 	    buf->b_p_tsr = empty_option;
10797 #endif
10798 #ifdef FEAT_TEXTOBJ
10799 	    buf->b_p_qe = vim_strsave(p_qe);
10800 #endif
10801 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
10802 	    buf->b_p_bexpr = empty_option;
10803 #endif
10804 #if defined(FEAT_CRYPT)
10805 	    buf->b_p_cm = empty_option;
10806 #endif
10807 #ifdef FEAT_PERSISTENT_UNDO
10808 	    buf->b_p_udf = p_udf;
10809 #endif
10810 #ifdef FEAT_LISP
10811 	    buf->b_p_lw = empty_option;
10812 #endif
10813 
10814 	    /*
10815 	     * Don't copy the options set by ex_help(), use the saved values,
10816 	     * when going from a help buffer to a non-help buffer.
10817 	     * Don't touch these at all when BCO_NOHELP is used and going from
10818 	     * or to a help buffer.
10819 	     */
10820 	    if (dont_do_help)
10821 		buf->b_p_isk = save_p_isk;
10822 	    else
10823 	    {
10824 		buf->b_p_isk = vim_strsave(p_isk);
10825 		did_isk = TRUE;
10826 		buf->b_p_ts = p_ts;
10827 		buf->b_help = FALSE;
10828 #ifdef FEAT_QUICKFIX
10829 		if (buf->b_p_bt[0] == 'h')
10830 		    clear_string_option(&buf->b_p_bt);
10831 #endif
10832 		buf->b_p_ma = p_ma;
10833 	    }
10834 	}
10835 
10836 	/*
10837 	 * When the options should be copied (ignoring BCO_ALWAYS), set the
10838 	 * flag that indicates that the options have been initialized.
10839 	 */
10840 	if (should_copy)
10841 	    buf->b_p_initialized = TRUE;
10842     }
10843 
10844     check_buf_options(buf);	    /* make sure we don't have NULLs */
10845     if (did_isk)
10846 	(void)buf_init_chartab(buf, FALSE);
10847 }
10848 
10849 /*
10850  * Reset the 'modifiable' option and its default value.
10851  */
10852     void
10853 reset_modifiable(void)
10854 {
10855     int		opt_idx;
10856 
10857     curbuf->b_p_ma = FALSE;
10858     p_ma = FALSE;
10859     opt_idx = findoption((char_u *)"ma");
10860     if (opt_idx >= 0)
10861 	options[opt_idx].def_val[VI_DEFAULT] = FALSE;
10862 }
10863 
10864 /*
10865  * Set the global value for 'iminsert' to the local value.
10866  */
10867     void
10868 set_iminsert_global(void)
10869 {
10870     p_iminsert = curbuf->b_p_iminsert;
10871 }
10872 
10873 /*
10874  * Set the global value for 'imsearch' to the local value.
10875  */
10876     void
10877 set_imsearch_global(void)
10878 {
10879     p_imsearch = curbuf->b_p_imsearch;
10880 }
10881 
10882 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
10883 static int expand_option_idx = -1;
10884 static char_u expand_option_name[5] = {'t', '_', NUL, NUL, NUL};
10885 static int expand_option_flags = 0;
10886 
10887     void
10888 set_context_in_set_cmd(
10889     expand_T	*xp,
10890     char_u	*arg,
10891     int		opt_flags)	/* OPT_GLOBAL and/or OPT_LOCAL */
10892 {
10893     int		nextchar;
10894     long_u	flags = 0;	/* init for GCC */
10895     int		opt_idx = 0;	/* init for GCC */
10896     char_u	*p;
10897     char_u	*s;
10898     int		is_term_option = FALSE;
10899     int		key;
10900 
10901     expand_option_flags = opt_flags;
10902 
10903     xp->xp_context = EXPAND_SETTINGS;
10904     if (*arg == NUL)
10905     {
10906 	xp->xp_pattern = arg;
10907 	return;
10908     }
10909     p = arg + STRLEN(arg) - 1;
10910     if (*p == ' ' && *(p - 1) != '\\')
10911     {
10912 	xp->xp_pattern = p + 1;
10913 	return;
10914     }
10915     while (p > arg)
10916     {
10917 	s = p;
10918 	/* count number of backslashes before ' ' or ',' */
10919 	if (*p == ' ' || *p == ',')
10920 	{
10921 	    while (s > arg && *(s - 1) == '\\')
10922 		--s;
10923 	}
10924 	/* break at a space with an even number of backslashes */
10925 	if (*p == ' ' && ((p - s) & 1) == 0)
10926 	{
10927 	    ++p;
10928 	    break;
10929 	}
10930 	--p;
10931     }
10932     if (STRNCMP(p, "no", 2) == 0 && STRNCMP(p, "novice", 6) != 0)
10933     {
10934 	xp->xp_context = EXPAND_BOOL_SETTINGS;
10935 	p += 2;
10936     }
10937     if (STRNCMP(p, "inv", 3) == 0)
10938     {
10939 	xp->xp_context = EXPAND_BOOL_SETTINGS;
10940 	p += 3;
10941     }
10942     xp->xp_pattern = arg = p;
10943     if (*arg == '<')
10944     {
10945 	while (*p != '>')
10946 	    if (*p++ == NUL)	    /* expand terminal option name */
10947 		return;
10948 	key = get_special_key_code(arg + 1);
10949 	if (key == 0)		    /* unknown name */
10950 	{
10951 	    xp->xp_context = EXPAND_NOTHING;
10952 	    return;
10953 	}
10954 	nextchar = *++p;
10955 	is_term_option = TRUE;
10956 	expand_option_name[2] = KEY2TERMCAP0(key);
10957 	expand_option_name[3] = KEY2TERMCAP1(key);
10958     }
10959     else
10960     {
10961 	if (p[0] == 't' && p[1] == '_')
10962 	{
10963 	    p += 2;
10964 	    if (*p != NUL)
10965 		++p;
10966 	    if (*p == NUL)
10967 		return;		/* expand option name */
10968 	    nextchar = *++p;
10969 	    is_term_option = TRUE;
10970 	    expand_option_name[2] = p[-2];
10971 	    expand_option_name[3] = p[-1];
10972 	}
10973 	else
10974 	{
10975 		/* Allow * wildcard */
10976 	    while (ASCII_ISALNUM(*p) || *p == '_' || *p == '*')
10977 		p++;
10978 	    if (*p == NUL)
10979 		return;
10980 	    nextchar = *p;
10981 	    *p = NUL;
10982 	    opt_idx = findoption(arg);
10983 	    *p = nextchar;
10984 	    if (opt_idx == -1 || options[opt_idx].var == NULL)
10985 	    {
10986 		xp->xp_context = EXPAND_NOTHING;
10987 		return;
10988 	    }
10989 	    flags = options[opt_idx].flags;
10990 	    if (flags & P_BOOL)
10991 	    {
10992 		xp->xp_context = EXPAND_NOTHING;
10993 		return;
10994 	    }
10995 	}
10996     }
10997     /* handle "-=" and "+=" */
10998     if ((nextchar == '-' || nextchar == '+' || nextchar == '^') && p[1] == '=')
10999     {
11000 	++p;
11001 	nextchar = '=';
11002     }
11003     if ((nextchar != '=' && nextchar != ':')
11004 				    || xp->xp_context == EXPAND_BOOL_SETTINGS)
11005     {
11006 	xp->xp_context = EXPAND_UNSUCCESSFUL;
11007 	return;
11008     }
11009     if (xp->xp_context != EXPAND_BOOL_SETTINGS && p[1] == NUL)
11010     {
11011 	xp->xp_context = EXPAND_OLD_SETTING;
11012 	if (is_term_option)
11013 	    expand_option_idx = -1;
11014 	else
11015 	    expand_option_idx = opt_idx;
11016 	xp->xp_pattern = p + 1;
11017 	return;
11018     }
11019     xp->xp_context = EXPAND_NOTHING;
11020     if (is_term_option || (flags & P_NUM))
11021 	return;
11022 
11023     xp->xp_pattern = p + 1;
11024 
11025     if (flags & P_EXPAND)
11026     {
11027 	p = options[opt_idx].var;
11028 	if (p == (char_u *)&p_bdir
11029 		|| p == (char_u *)&p_dir
11030 		|| p == (char_u *)&p_path
11031 		|| p == (char_u *)&p_pp
11032 		|| p == (char_u *)&p_rtp
11033 #ifdef FEAT_SEARCHPATH
11034 		|| p == (char_u *)&p_cdpath
11035 #endif
11036 #ifdef FEAT_SESSION
11037 		|| p == (char_u *)&p_vdir
11038 #endif
11039 		)
11040 	{
11041 	    xp->xp_context = EXPAND_DIRECTORIES;
11042 	    if (p == (char_u *)&p_path
11043 #ifdef FEAT_SEARCHPATH
11044 		    || p == (char_u *)&p_cdpath
11045 #endif
11046 		   )
11047 		xp->xp_backslash = XP_BS_THREE;
11048 	    else
11049 		xp->xp_backslash = XP_BS_ONE;
11050 	}
11051 	else
11052 	{
11053 	    xp->xp_context = EXPAND_FILES;
11054 	    /* for 'tags' need three backslashes for a space */
11055 	    if (p == (char_u *)&p_tags)
11056 		xp->xp_backslash = XP_BS_THREE;
11057 	    else
11058 		xp->xp_backslash = XP_BS_ONE;
11059 	}
11060     }
11061 
11062     /* For an option that is a list of file names, find the start of the
11063      * last file name. */
11064     for (p = arg + STRLEN(arg) - 1; p > xp->xp_pattern; --p)
11065     {
11066 	/* count number of backslashes before ' ' or ',' */
11067 	if (*p == ' ' || *p == ',')
11068 	{
11069 	    s = p;
11070 	    while (s > xp->xp_pattern && *(s - 1) == '\\')
11071 		--s;
11072 	    if ((*p == ' ' && (xp->xp_backslash == XP_BS_THREE && (p - s) < 3))
11073 		    || (*p == ',' && (flags & P_COMMA) && ((p - s) & 1) == 0))
11074 	    {
11075 		xp->xp_pattern = p + 1;
11076 		break;
11077 	    }
11078 	}
11079 
11080 #ifdef FEAT_SPELL
11081 	/* for 'spellsuggest' start at "file:" */
11082 	if (options[opt_idx].var == (char_u *)&p_sps
11083 					       && STRNCMP(p, "file:", 5) == 0)
11084 	{
11085 	    xp->xp_pattern = p + 5;
11086 	    break;
11087 	}
11088 #endif
11089     }
11090 
11091     return;
11092 }
11093 
11094     int
11095 ExpandSettings(
11096     expand_T	*xp,
11097     regmatch_T	*regmatch,
11098     int		*num_file,
11099     char_u	***file)
11100 {
11101     int		num_normal = 0;	    /* Nr of matching non-term-code settings */
11102     int		num_term = 0;	    /* Nr of matching terminal code settings */
11103     int		opt_idx;
11104     int		match;
11105     int		count = 0;
11106     char_u	*str;
11107     int		loop;
11108     int		is_term_opt;
11109     char_u	name_buf[MAX_KEY_NAME_LEN];
11110     static char *(names[]) = {"all", "termcap"};
11111     int		ic = regmatch->rm_ic;	/* remember the ignore-case flag */
11112 
11113     /* do this loop twice:
11114      * loop == 0: count the number of matching options
11115      * loop == 1: copy the matching options into allocated memory
11116      */
11117     for (loop = 0; loop <= 1; ++loop)
11118     {
11119 	regmatch->rm_ic = ic;
11120 	if (xp->xp_context != EXPAND_BOOL_SETTINGS)
11121 	{
11122 	    for (match = 0; match < (int)(sizeof(names) / sizeof(char *));
11123 								      ++match)
11124 		if (vim_regexec(regmatch, (char_u *)names[match], (colnr_T)0))
11125 		{
11126 		    if (loop == 0)
11127 			num_normal++;
11128 		    else
11129 			(*file)[count++] = vim_strsave((char_u *)names[match]);
11130 		}
11131 	}
11132 	for (opt_idx = 0; (str = (char_u *)options[opt_idx].fullname) != NULL;
11133 								    opt_idx++)
11134 	{
11135 	    if (options[opt_idx].var == NULL)
11136 		continue;
11137 	    if (xp->xp_context == EXPAND_BOOL_SETTINGS
11138 	      && !(options[opt_idx].flags & P_BOOL))
11139 		continue;
11140 	    is_term_opt = istermoption(&options[opt_idx]);
11141 	    if (is_term_opt && num_normal > 0)
11142 		continue;
11143 	    match = FALSE;
11144 	    if (vim_regexec(regmatch, str, (colnr_T)0)
11145 		    || (options[opt_idx].shortname != NULL
11146 			&& vim_regexec(regmatch,
11147 			   (char_u *)options[opt_idx].shortname, (colnr_T)0)))
11148 		match = TRUE;
11149 	    else if (is_term_opt)
11150 	    {
11151 		name_buf[0] = '<';
11152 		name_buf[1] = 't';
11153 		name_buf[2] = '_';
11154 		name_buf[3] = str[2];
11155 		name_buf[4] = str[3];
11156 		name_buf[5] = '>';
11157 		name_buf[6] = NUL;
11158 		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
11159 		{
11160 		    match = TRUE;
11161 		    str = name_buf;
11162 		}
11163 	    }
11164 	    if (match)
11165 	    {
11166 		if (loop == 0)
11167 		{
11168 		    if (is_term_opt)
11169 			num_term++;
11170 		    else
11171 			num_normal++;
11172 		}
11173 		else
11174 		    (*file)[count++] = vim_strsave(str);
11175 	    }
11176 	}
11177 	/*
11178 	 * Check terminal key codes, these are not in the option table
11179 	 */
11180 	if (xp->xp_context != EXPAND_BOOL_SETTINGS  && num_normal == 0)
11181 	{
11182 	    for (opt_idx = 0; (str = get_termcode(opt_idx)) != NULL; opt_idx++)
11183 	    {
11184 		if (!isprint(str[0]) || !isprint(str[1]))
11185 		    continue;
11186 
11187 		name_buf[0] = 't';
11188 		name_buf[1] = '_';
11189 		name_buf[2] = str[0];
11190 		name_buf[3] = str[1];
11191 		name_buf[4] = NUL;
11192 
11193 		match = FALSE;
11194 		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
11195 		    match = TRUE;
11196 		else
11197 		{
11198 		    name_buf[0] = '<';
11199 		    name_buf[1] = 't';
11200 		    name_buf[2] = '_';
11201 		    name_buf[3] = str[0];
11202 		    name_buf[4] = str[1];
11203 		    name_buf[5] = '>';
11204 		    name_buf[6] = NUL;
11205 
11206 		    if (vim_regexec(regmatch, name_buf, (colnr_T)0))
11207 			match = TRUE;
11208 		}
11209 		if (match)
11210 		{
11211 		    if (loop == 0)
11212 			num_term++;
11213 		    else
11214 			(*file)[count++] = vim_strsave(name_buf);
11215 		}
11216 	    }
11217 
11218 	    /*
11219 	     * Check special key names.
11220 	     */
11221 	    regmatch->rm_ic = TRUE;		/* ignore case here */
11222 	    for (opt_idx = 0; (str = get_key_name(opt_idx)) != NULL; opt_idx++)
11223 	    {
11224 		name_buf[0] = '<';
11225 		STRCPY(name_buf + 1, str);
11226 		STRCAT(name_buf, ">");
11227 
11228 		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
11229 		{
11230 		    if (loop == 0)
11231 			num_term++;
11232 		    else
11233 			(*file)[count++] = vim_strsave(name_buf);
11234 		}
11235 	    }
11236 	}
11237 	if (loop == 0)
11238 	{
11239 	    if (num_normal > 0)
11240 		*num_file = num_normal;
11241 	    else if (num_term > 0)
11242 		*num_file = num_term;
11243 	    else
11244 		return OK;
11245 	    *file = (char_u **)alloc((unsigned)(*num_file * sizeof(char_u *)));
11246 	    if (*file == NULL)
11247 	    {
11248 		*file = (char_u **)"";
11249 		return FAIL;
11250 	    }
11251 	}
11252     }
11253     return OK;
11254 }
11255 
11256     int
11257 ExpandOldSetting(int *num_file, char_u ***file)
11258 {
11259     char_u  *var = NULL;	/* init for GCC */
11260     char_u  *buf;
11261 
11262     *num_file = 0;
11263     *file = (char_u **)alloc((unsigned)sizeof(char_u *));
11264     if (*file == NULL)
11265 	return FAIL;
11266 
11267     /*
11268      * For a terminal key code expand_option_idx is < 0.
11269      */
11270     if (expand_option_idx < 0)
11271     {
11272 	var = find_termcode(expand_option_name + 2);
11273 	if (var == NULL)
11274 	    expand_option_idx = findoption(expand_option_name);
11275     }
11276 
11277     if (expand_option_idx >= 0)
11278     {
11279 	/* put string of option value in NameBuff */
11280 	option_value2string(&options[expand_option_idx], expand_option_flags);
11281 	var = NameBuff;
11282     }
11283     else if (var == NULL)
11284 	var = (char_u *)"";
11285 
11286     /* A backslash is required before some characters.  This is the reverse of
11287      * what happens in do_set(). */
11288     buf = vim_strsave_escaped(var, escape_chars);
11289 
11290     if (buf == NULL)
11291     {
11292 	vim_free(*file);
11293 	*file = NULL;
11294 	return FAIL;
11295     }
11296 
11297 #ifdef BACKSLASH_IN_FILENAME
11298     /* For MS-Windows et al. we don't double backslashes at the start and
11299      * before a file name character. */
11300     for (var = buf; *var != NUL; mb_ptr_adv(var))
11301 	if (var[0] == '\\' && var[1] == '\\'
11302 		&& expand_option_idx >= 0
11303 		&& (options[expand_option_idx].flags & P_EXPAND)
11304 		&& vim_isfilec(var[2])
11305 		&& (var[2] != '\\' || (var == buf && var[4] != '\\')))
11306 	    STRMOVE(var, var + 1);
11307 #endif
11308 
11309     *file[0] = buf;
11310     *num_file = 1;
11311     return OK;
11312 }
11313 #endif
11314 
11315 /*
11316  * Get the value for the numeric or string option *opp in a nice format into
11317  * NameBuff[].  Must not be called with a hidden option!
11318  */
11319     static void
11320 option_value2string(
11321     struct vimoption	*opp,
11322     int			opt_flags)	/* OPT_GLOBAL and/or OPT_LOCAL */
11323 {
11324     char_u	*varp;
11325 
11326     varp = get_varp_scope(opp, opt_flags);
11327 
11328     if (opp->flags & P_NUM)
11329     {
11330 	long wc = 0;
11331 
11332 	if (wc_use_keyname(varp, &wc))
11333 	    STRCPY(NameBuff, get_special_key_name((int)wc, 0));
11334 	else if (wc != 0)
11335 	    STRCPY(NameBuff, transchar((int)wc));
11336 	else
11337 	    sprintf((char *)NameBuff, "%ld", *(long *)varp);
11338     }
11339     else    /* P_STRING */
11340     {
11341 	varp = *(char_u **)(varp);
11342 	if (varp == NULL)		    /* just in case */
11343 	    NameBuff[0] = NUL;
11344 #ifdef FEAT_CRYPT
11345 	/* don't show the actual value of 'key', only that it's set */
11346 	else if (opp->var == (char_u *)&p_key && *varp)
11347 	    STRCPY(NameBuff, "*****");
11348 #endif
11349 	else if (opp->flags & P_EXPAND)
11350 	    home_replace(NULL, varp, NameBuff, MAXPATHL, FALSE);
11351 	/* Translate 'pastetoggle' into special key names */
11352 	else if ((char_u **)opp->var == &p_pt)
11353 	    str2specialbuf(p_pt, NameBuff, MAXPATHL);
11354 	else
11355 	    vim_strncpy(NameBuff, varp, MAXPATHL - 1);
11356     }
11357 }
11358 
11359 /*
11360  * Return TRUE if "varp" points to 'wildchar' or 'wildcharm' and it can be
11361  * printed as a keyname.
11362  * "*wcp" is set to the value of the option if it's 'wildchar' or 'wildcharm'.
11363  */
11364     static int
11365 wc_use_keyname(char_u *varp, long *wcp)
11366 {
11367     if (((long *)varp == &p_wc) || ((long *)varp == &p_wcm))
11368     {
11369 	*wcp = *(long *)varp;
11370 	if (IS_SPECIAL(*wcp) || find_special_key_in_table((int)*wcp) >= 0)
11371 	    return TRUE;
11372     }
11373     return FALSE;
11374 }
11375 
11376 #if defined(FEAT_LANGMAP) || defined(PROTO)
11377 /*
11378  * Any character has an equivalent 'langmap' character.  This is used for
11379  * keyboards that have a special language mode that sends characters above
11380  * 128 (although other characters can be translated too).  The "to" field is a
11381  * Vim command character.  This avoids having to switch the keyboard back to
11382  * ASCII mode when leaving Insert mode.
11383  *
11384  * langmap_mapchar[] maps any of 256 chars to an ASCII char used for Vim
11385  * commands.
11386  * When FEAT_MBYTE is defined langmap_mapga.ga_data is a sorted table of
11387  * langmap_entry_T.  This does the same as langmap_mapchar[] for characters >=
11388  * 256.
11389  */
11390 # if defined(FEAT_MBYTE) || defined(PROTO)
11391 /*
11392  * With multi-byte support use growarray for 'langmap' chars >= 256
11393  */
11394 typedef struct
11395 {
11396     int	    from;
11397     int     to;
11398 } langmap_entry_T;
11399 
11400 static garray_T langmap_mapga;
11401 static void langmap_set_entry(int from, int to);
11402 
11403 /*
11404  * Search for an entry in "langmap_mapga" for "from".  If found set the "to"
11405  * field.  If not found insert a new entry at the appropriate location.
11406  */
11407     static void
11408 langmap_set_entry(int from, int to)
11409 {
11410     langmap_entry_T *entries = (langmap_entry_T *)(langmap_mapga.ga_data);
11411     int		    a = 0;
11412     int		    b = langmap_mapga.ga_len;
11413 
11414     /* Do a binary search for an existing entry. */
11415     while (a != b)
11416     {
11417 	int i = (a + b) / 2;
11418 	int d = entries[i].from - from;
11419 
11420 	if (d == 0)
11421 	{
11422 	    entries[i].to = to;
11423 	    return;
11424 	}
11425 	if (d < 0)
11426 	    a = i + 1;
11427 	else
11428 	    b = i;
11429     }
11430 
11431     if (ga_grow(&langmap_mapga, 1) != OK)
11432 	return;  /* out of memory */
11433 
11434     /* insert new entry at position "a" */
11435     entries = (langmap_entry_T *)(langmap_mapga.ga_data) + a;
11436     mch_memmove(entries + 1, entries,
11437 			(langmap_mapga.ga_len - a) * sizeof(langmap_entry_T));
11438     ++langmap_mapga.ga_len;
11439     entries[0].from = from;
11440     entries[0].to = to;
11441 }
11442 
11443 /*
11444  * Apply 'langmap' to multi-byte character "c" and return the result.
11445  */
11446     int
11447 langmap_adjust_mb(int c)
11448 {
11449     langmap_entry_T *entries = (langmap_entry_T *)(langmap_mapga.ga_data);
11450     int a = 0;
11451     int b = langmap_mapga.ga_len;
11452 
11453     while (a != b)
11454     {
11455 	int i = (a + b) / 2;
11456 	int d = entries[i].from - c;
11457 
11458 	if (d == 0)
11459 	    return entries[i].to;  /* found matching entry */
11460 	if (d < 0)
11461 	    a = i + 1;
11462 	else
11463 	    b = i;
11464     }
11465     return c;  /* no entry found, return "c" unmodified */
11466 }
11467 # endif
11468 
11469     static void
11470 langmap_init(void)
11471 {
11472     int i;
11473 
11474     for (i = 0; i < 256; i++)
11475 	langmap_mapchar[i] = i;	 /* we init with a one-to-one map */
11476 # ifdef FEAT_MBYTE
11477     ga_init2(&langmap_mapga, sizeof(langmap_entry_T), 8);
11478 # endif
11479 }
11480 
11481 /*
11482  * Called when langmap option is set; the language map can be
11483  * changed at any time!
11484  */
11485     static void
11486 langmap_set(void)
11487 {
11488     char_u  *p;
11489     char_u  *p2;
11490     int	    from, to;
11491 
11492 #ifdef FEAT_MBYTE
11493     ga_clear(&langmap_mapga);		    /* clear the previous map first */
11494 #endif
11495     langmap_init();			    /* back to one-to-one map */
11496 
11497     for (p = p_langmap; p[0] != NUL; )
11498     {
11499 	for (p2 = p; p2[0] != NUL && p2[0] != ',' && p2[0] != ';';
11500 							       mb_ptr_adv(p2))
11501 	{
11502 	    if (p2[0] == '\\' && p2[1] != NUL)
11503 		++p2;
11504 	}
11505 	if (p2[0] == ';')
11506 	    ++p2;	    /* abcd;ABCD form, p2 points to A */
11507 	else
11508 	    p2 = NULL;	    /* aAbBcCdD form, p2 is NULL */
11509 	while (p[0])
11510 	{
11511 	    if (p[0] == ',')
11512 	    {
11513 		++p;
11514 		break;
11515 	    }
11516 	    if (p[0] == '\\' && p[1] != NUL)
11517 		++p;
11518 #ifdef FEAT_MBYTE
11519 	    from = (*mb_ptr2char)(p);
11520 #else
11521 	    from = p[0];
11522 #endif
11523 	    to = NUL;
11524 	    if (p2 == NULL)
11525 	    {
11526 		mb_ptr_adv(p);
11527 		if (p[0] != ',')
11528 		{
11529 		    if (p[0] == '\\')
11530 			++p;
11531 #ifdef FEAT_MBYTE
11532 		    to = (*mb_ptr2char)(p);
11533 #else
11534 		    to = p[0];
11535 #endif
11536 		}
11537 	    }
11538 	    else
11539 	    {
11540 		if (p2[0] != ',')
11541 		{
11542 		    if (p2[0] == '\\')
11543 			++p2;
11544 #ifdef FEAT_MBYTE
11545 		    to = (*mb_ptr2char)(p2);
11546 #else
11547 		    to = p2[0];
11548 #endif
11549 		}
11550 	    }
11551 	    if (to == NUL)
11552 	    {
11553 		EMSG2(_("E357: 'langmap': Matching character missing for %s"),
11554 							     transchar(from));
11555 		return;
11556 	    }
11557 
11558 #ifdef FEAT_MBYTE
11559 	    if (from >= 256)
11560 		langmap_set_entry(from, to);
11561 	    else
11562 #endif
11563 		langmap_mapchar[from & 255] = to;
11564 
11565 	    /* Advance to next pair */
11566 	    mb_ptr_adv(p);
11567 	    if (p2 != NULL)
11568 	    {
11569 		mb_ptr_adv(p2);
11570 		if (*p == ';')
11571 		{
11572 		    p = p2;
11573 		    if (p[0] != NUL)
11574 		    {
11575 			if (p[0] != ',')
11576 			{
11577 			    EMSG2(_("E358: 'langmap': Extra characters after semicolon: %s"), p);
11578 			    return;
11579 			}
11580 			++p;
11581 		    }
11582 		    break;
11583 		}
11584 	    }
11585 	}
11586     }
11587 }
11588 #endif
11589 
11590 /*
11591  * Return TRUE if format option 'x' is in effect.
11592  * Take care of no formatting when 'paste' is set.
11593  */
11594     int
11595 has_format_option(int x)
11596 {
11597     if (p_paste)
11598 	return FALSE;
11599     return (vim_strchr(curbuf->b_p_fo, x) != NULL);
11600 }
11601 
11602 /*
11603  * Return TRUE if "x" is present in 'shortmess' option, or
11604  * 'shortmess' contains 'a' and "x" is present in SHM_A.
11605  */
11606     int
11607 shortmess(int x)
11608 {
11609     return p_shm != NULL &&
11610 	    (   vim_strchr(p_shm, x) != NULL
11611 	    || (vim_strchr(p_shm, 'a') != NULL
11612 		&& vim_strchr((char_u *)SHM_A, x) != NULL));
11613 }
11614 
11615 /*
11616  * paste_option_changed() - Called after p_paste was set or reset.
11617  */
11618     static void
11619 paste_option_changed(void)
11620 {
11621     static int	old_p_paste = FALSE;
11622     static int	save_sm = 0;
11623     static int	save_sta = 0;
11624 #ifdef FEAT_CMDL_INFO
11625     static int	save_ru = 0;
11626 #endif
11627 #ifdef FEAT_RIGHTLEFT
11628     static int	save_ri = 0;
11629     static int	save_hkmap = 0;
11630 #endif
11631     buf_T	*buf;
11632 
11633     if (p_paste)
11634     {
11635 	/*
11636 	 * Paste switched from off to on.
11637 	 * Save the current values, so they can be restored later.
11638 	 */
11639 	if (!old_p_paste)
11640 	{
11641 	    /* save options for each buffer */
11642 	    for (buf = firstbuf; buf != NULL; buf = buf->b_next)
11643 	    {
11644 		buf->b_p_tw_nopaste = buf->b_p_tw;
11645 		buf->b_p_wm_nopaste = buf->b_p_wm;
11646 		buf->b_p_sts_nopaste = buf->b_p_sts;
11647 		buf->b_p_ai_nopaste = buf->b_p_ai;
11648 		buf->b_p_et_nopaste = buf->b_p_et;
11649 	    }
11650 
11651 	    /* save global options */
11652 	    save_sm = p_sm;
11653 	    save_sta = p_sta;
11654 #ifdef FEAT_CMDL_INFO
11655 	    save_ru = p_ru;
11656 #endif
11657 #ifdef FEAT_RIGHTLEFT
11658 	    save_ri = p_ri;
11659 	    save_hkmap = p_hkmap;
11660 #endif
11661 	    /* save global values for local buffer options */
11662 	    p_ai_nopaste = p_ai;
11663 	    p_et_nopaste = p_et;
11664 	    p_sts_nopaste = p_sts;
11665 	    p_tw_nopaste = p_tw;
11666 	    p_wm_nopaste = p_wm;
11667 	}
11668 
11669 	/*
11670 	 * Always set the option values, also when 'paste' is set when it is
11671 	 * already on.
11672 	 */
11673 	/* set options for each buffer */
11674 	for (buf = firstbuf; buf != NULL; buf = buf->b_next)
11675 	{
11676 	    buf->b_p_tw = 0;	    /* textwidth is 0 */
11677 	    buf->b_p_wm = 0;	    /* wrapmargin is 0 */
11678 	    buf->b_p_sts = 0;	    /* softtabstop is 0 */
11679 	    buf->b_p_ai = 0;	    /* no auto-indent */
11680 	    buf->b_p_et = 0;	    /* no expandtab */
11681 	}
11682 
11683 	/* set global options */
11684 	p_sm = 0;		    /* no showmatch */
11685 	p_sta = 0;		    /* no smarttab */
11686 #ifdef FEAT_CMDL_INFO
11687 # ifdef FEAT_WINDOWS
11688 	if (p_ru)
11689 	    status_redraw_all();    /* redraw to remove the ruler */
11690 # endif
11691 	p_ru = 0;		    /* no ruler */
11692 #endif
11693 #ifdef FEAT_RIGHTLEFT
11694 	p_ri = 0;		    /* no reverse insert */
11695 	p_hkmap = 0;		    /* no Hebrew keyboard */
11696 #endif
11697 	/* set global values for local buffer options */
11698 	p_tw = 0;
11699 	p_wm = 0;
11700 	p_sts = 0;
11701 	p_ai = 0;
11702     }
11703 
11704     /*
11705      * Paste switched from on to off: Restore saved values.
11706      */
11707     else if (old_p_paste)
11708     {
11709 	/* restore options for each buffer */
11710 	for (buf = firstbuf; buf != NULL; buf = buf->b_next)
11711 	{
11712 	    buf->b_p_tw = buf->b_p_tw_nopaste;
11713 	    buf->b_p_wm = buf->b_p_wm_nopaste;
11714 	    buf->b_p_sts = buf->b_p_sts_nopaste;
11715 	    buf->b_p_ai = buf->b_p_ai_nopaste;
11716 	    buf->b_p_et = buf->b_p_et_nopaste;
11717 	}
11718 
11719 	/* restore global options */
11720 	p_sm = save_sm;
11721 	p_sta = save_sta;
11722 #ifdef FEAT_CMDL_INFO
11723 # ifdef FEAT_WINDOWS
11724 	if (p_ru != save_ru)
11725 	    status_redraw_all();    /* redraw to draw the ruler */
11726 # endif
11727 	p_ru = save_ru;
11728 #endif
11729 #ifdef FEAT_RIGHTLEFT
11730 	p_ri = save_ri;
11731 	p_hkmap = save_hkmap;
11732 #endif
11733 	/* set global values for local buffer options */
11734 	p_ai = p_ai_nopaste;
11735 	p_et = p_et_nopaste;
11736 	p_sts = p_sts_nopaste;
11737 	p_tw = p_tw_nopaste;
11738 	p_wm = p_wm_nopaste;
11739     }
11740 
11741     old_p_paste = p_paste;
11742 }
11743 
11744 /*
11745  * vimrc_found() - Called when a ".vimrc" or "VIMINIT" has been found.
11746  *
11747  * Reset 'compatible' and set the values for options that didn't get set yet
11748  * to the Vim defaults.
11749  * Don't do this if the 'compatible' option has been set or reset before.
11750  * When "fname" is not NULL, use it to set $"envname" when it wasn't set yet.
11751  */
11752     void
11753 vimrc_found(char_u *fname, char_u *envname)
11754 {
11755     int		opt_idx;
11756     int		dofree = FALSE;
11757     char_u	*p;
11758 
11759     if (!option_was_set((char_u *)"cp"))
11760     {
11761 	p_cp = FALSE;
11762 	for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
11763 	    if (!(options[opt_idx].flags & (P_WAS_SET|P_VI_DEF)))
11764 		set_option_default(opt_idx, OPT_FREE, FALSE);
11765 	didset_options();
11766 	didset_options2();
11767     }
11768 
11769     if (fname != NULL)
11770     {
11771 	p = vim_getenv(envname, &dofree);
11772 	if (p == NULL)
11773 	{
11774 	    /* Set $MYVIMRC to the first vimrc file found. */
11775 	    p = FullName_save(fname, FALSE);
11776 	    if (p != NULL)
11777 	    {
11778 		vim_setenv(envname, p);
11779 		vim_free(p);
11780 	    }
11781 	}
11782 	else if (dofree)
11783 	    vim_free(p);
11784     }
11785 }
11786 
11787 /*
11788  * Set 'compatible' on or off.  Called for "-C" and "-N" command line arg.
11789  */
11790     void
11791 change_compatible(int on)
11792 {
11793     int	    opt_idx;
11794 
11795     if (p_cp != on)
11796     {
11797 	p_cp = on;
11798 	compatible_set();
11799     }
11800     opt_idx = findoption((char_u *)"cp");
11801     if (opt_idx >= 0)
11802 	options[opt_idx].flags |= P_WAS_SET;
11803 }
11804 
11805 /*
11806  * Return TRUE when option "name" has been set.
11807  * Only works correctly for global options.
11808  */
11809     int
11810 option_was_set(char_u *name)
11811 {
11812     int idx;
11813 
11814     idx = findoption(name);
11815     if (idx < 0)	/* unknown option */
11816 	return FALSE;
11817     if (options[idx].flags & P_WAS_SET)
11818 	return TRUE;
11819     return FALSE;
11820 }
11821 
11822 /*
11823  * Reset the flag indicating option "name" was set.
11824  */
11825     void
11826 reset_option_was_set(char_u *name)
11827 {
11828     int idx = findoption(name);
11829 
11830     if (idx >= 0)
11831 	options[idx].flags &= ~P_WAS_SET;
11832 }
11833 
11834 /*
11835  * compatible_set() - Called when 'compatible' has been set or unset.
11836  *
11837  * When 'compatible' set: Set all relevant options (those that have the P_VIM)
11838  * flag) to a Vi compatible value.
11839  * When 'compatible' is unset: Set all options that have a different default
11840  * for Vim (without the P_VI_DEF flag) to that default.
11841  */
11842     static void
11843 compatible_set(void)
11844 {
11845     int	    opt_idx;
11846 
11847     for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
11848 	if (	   ((options[opt_idx].flags & P_VIM) && p_cp)
11849 		|| (!(options[opt_idx].flags & P_VI_DEF) && !p_cp))
11850 	    set_option_default(opt_idx, OPT_FREE, p_cp);
11851     didset_options();
11852     didset_options2();
11853 }
11854 
11855 #ifdef FEAT_LINEBREAK
11856 
11857 # if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
11858    /* Borland C++ screws up loop optimisation here (negri) */
11859   #pragma option -O-l
11860 # endif
11861 
11862 /*
11863  * fill_breakat_flags() -- called when 'breakat' changes value.
11864  */
11865     static void
11866 fill_breakat_flags(void)
11867 {
11868     char_u	*p;
11869     int		i;
11870 
11871     for (i = 0; i < 256; i++)
11872 	breakat_flags[i] = FALSE;
11873 
11874     if (p_breakat != NULL)
11875 	for (p = p_breakat; *p; p++)
11876 	    breakat_flags[*p] = TRUE;
11877 }
11878 
11879 # if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
11880   #pragma option -O.l
11881 # endif
11882 
11883 #endif
11884 
11885 /*
11886  * Check an option that can be a range of string values.
11887  *
11888  * Return OK for correct value, FAIL otherwise.
11889  * Empty is always OK.
11890  */
11891     static int
11892 check_opt_strings(
11893     char_u	*val,
11894     char	**values,
11895     int		list)	    /* when TRUE: accept a list of values */
11896 {
11897     return opt_strings_flags(val, values, NULL, list);
11898 }
11899 
11900 /*
11901  * Handle an option that can be a range of string values.
11902  * Set a flag in "*flagp" for each string present.
11903  *
11904  * Return OK for correct value, FAIL otherwise.
11905  * Empty is always OK.
11906  */
11907     static int
11908 opt_strings_flags(
11909     char_u	*val,		/* new value */
11910     char	**values,	/* array of valid string values */
11911     unsigned	*flagp,
11912     int		list)		/* when TRUE: accept a list of values */
11913 {
11914     int		i;
11915     int		len;
11916     unsigned	new_flags = 0;
11917 
11918     while (*val)
11919     {
11920 	for (i = 0; ; ++i)
11921 	{
11922 	    if (values[i] == NULL)	/* val not found in values[] */
11923 		return FAIL;
11924 
11925 	    len = (int)STRLEN(values[i]);
11926 	    if (STRNCMP(values[i], val, len) == 0
11927 		    && ((list && val[len] == ',') || val[len] == NUL))
11928 	    {
11929 		val += len + (val[len] == ',');
11930 		new_flags |= (1 << i);
11931 		break;		/* check next item in val list */
11932 	    }
11933 	}
11934     }
11935     if (flagp != NULL)
11936 	*flagp = new_flags;
11937 
11938     return OK;
11939 }
11940 
11941 /*
11942  * Read the 'wildmode' option, fill wim_flags[].
11943  */
11944     static int
11945 check_opt_wim(void)
11946 {
11947     char_u	new_wim_flags[4];
11948     char_u	*p;
11949     int		i;
11950     int		idx = 0;
11951 
11952     for (i = 0; i < 4; ++i)
11953 	new_wim_flags[i] = 0;
11954 
11955     for (p = p_wim; *p; ++p)
11956     {
11957 	for (i = 0; ASCII_ISALPHA(p[i]); ++i)
11958 	    ;
11959 	if (p[i] != NUL && p[i] != ',' && p[i] != ':')
11960 	    return FAIL;
11961 	if (i == 7 && STRNCMP(p, "longest", 7) == 0)
11962 	    new_wim_flags[idx] |= WIM_LONGEST;
11963 	else if (i == 4 && STRNCMP(p, "full", 4) == 0)
11964 	    new_wim_flags[idx] |= WIM_FULL;
11965 	else if (i == 4 && STRNCMP(p, "list", 4) == 0)
11966 	    new_wim_flags[idx] |= WIM_LIST;
11967 	else
11968 	    return FAIL;
11969 	p += i;
11970 	if (*p == NUL)
11971 	    break;
11972 	if (*p == ',')
11973 	{
11974 	    if (idx == 3)
11975 		return FAIL;
11976 	    ++idx;
11977 	}
11978     }
11979 
11980     /* fill remaining entries with last flag */
11981     while (idx < 3)
11982     {
11983 	new_wim_flags[idx + 1] = new_wim_flags[idx];
11984 	++idx;
11985     }
11986 
11987     /* only when there are no errors, wim_flags[] is changed */
11988     for (i = 0; i < 4; ++i)
11989 	wim_flags[i] = new_wim_flags[i];
11990     return OK;
11991 }
11992 
11993 /*
11994  * Check if backspacing over something is allowed.
11995  */
11996     int
11997 can_bs(
11998     int		what)	    /* BS_INDENT, BS_EOL or BS_START */
11999 {
12000     switch (*p_bs)
12001     {
12002 	case '2':	return TRUE;
12003 	case '1':	return (what != BS_START);
12004 	case '0':	return FALSE;
12005     }
12006     return vim_strchr(p_bs, what) != NULL;
12007 }
12008 
12009 /*
12010  * Save the current values of 'fileformat' and 'fileencoding', so that we know
12011  * the file must be considered changed when the value is different.
12012  */
12013     void
12014 save_file_ff(buf_T *buf)
12015 {
12016     buf->b_start_ffc = *buf->b_p_ff;
12017     buf->b_start_eol = buf->b_p_eol;
12018 #ifdef FEAT_MBYTE
12019     buf->b_start_bomb = buf->b_p_bomb;
12020 
12021     /* Only use free/alloc when necessary, they take time. */
12022     if (buf->b_start_fenc == NULL
12023 			     || STRCMP(buf->b_start_fenc, buf->b_p_fenc) != 0)
12024     {
12025 	vim_free(buf->b_start_fenc);
12026 	buf->b_start_fenc = vim_strsave(buf->b_p_fenc);
12027     }
12028 #endif
12029 }
12030 
12031 /*
12032  * Return TRUE if 'fileformat' and/or 'fileencoding' has a different value
12033  * from when editing started (save_file_ff() called).
12034  * Also when 'endofline' was changed and 'binary' is set, or when 'bomb' was
12035  * changed and 'binary' is not set.
12036  * Also when 'endofline' was changed and 'fixeol' is not set.
12037  * When "ignore_empty" is true don't consider a new, empty buffer to be
12038  * changed.
12039  */
12040     int
12041 file_ff_differs(buf_T *buf, int ignore_empty)
12042 {
12043     /* In a buffer that was never loaded the options are not valid. */
12044     if (buf->b_flags & BF_NEVERLOADED)
12045 	return FALSE;
12046     if (ignore_empty
12047 	    && (buf->b_flags & BF_NEW)
12048 	    && buf->b_ml.ml_line_count == 1
12049 	    && *ml_get_buf(buf, (linenr_T)1, FALSE) == NUL)
12050 	return FALSE;
12051     if (buf->b_start_ffc != *buf->b_p_ff)
12052 	return TRUE;
12053     if ((buf->b_p_bin || !buf->b_p_fixeol) && buf->b_start_eol != buf->b_p_eol)
12054 	return TRUE;
12055 #ifdef FEAT_MBYTE
12056     if (!buf->b_p_bin && buf->b_start_bomb != buf->b_p_bomb)
12057 	return TRUE;
12058     if (buf->b_start_fenc == NULL)
12059 	return (*buf->b_p_fenc != NUL);
12060     return (STRCMP(buf->b_start_fenc, buf->b_p_fenc) != 0);
12061 #else
12062     return FALSE;
12063 #endif
12064 }
12065 
12066 /*
12067  * return OK if "p" is a valid fileformat name, FAIL otherwise.
12068  */
12069     int
12070 check_ff_value(char_u *p)
12071 {
12072     return check_opt_strings(p, p_ff_values, FALSE);
12073 }
12074 
12075 /*
12076  * Return the effective shiftwidth value for current buffer, using the
12077  * 'tabstop' value when 'shiftwidth' is zero.
12078  */
12079     long
12080 get_sw_value(buf_T *buf)
12081 {
12082     return buf->b_p_sw ? buf->b_p_sw : buf->b_p_ts;
12083 }
12084 
12085 /*
12086  * Return the effective softtabstop value for the current buffer, using the
12087  * 'tabstop' value when 'softtabstop' is negative.
12088  */
12089     long
12090 get_sts_value(void)
12091 {
12092     return curbuf->b_p_sts < 0 ? get_sw_value(curbuf) : curbuf->b_p_sts;
12093 }
12094 
12095 /*
12096  * Check matchpairs option for "*initc".
12097  * If there is a match set "*initc" to the matching character and "*findc" to
12098  * the opposite character.  Set "*backwards" to the direction.
12099  * When "switchit" is TRUE swap the direction.
12100  */
12101     void
12102 find_mps_values(
12103     int	    *initc,
12104     int	    *findc,
12105     int	    *backwards,
12106     int	    switchit)
12107 {
12108     char_u	*ptr;
12109 
12110     ptr = curbuf->b_p_mps;
12111     while (*ptr != NUL)
12112     {
12113 #ifdef FEAT_MBYTE
12114 	if (has_mbyte)
12115 	{
12116 	    char_u *prev;
12117 
12118 	    if (mb_ptr2char(ptr) == *initc)
12119 	    {
12120 		if (switchit)
12121 		{
12122 		    *findc = *initc;
12123 		    *initc = mb_ptr2char(ptr + mb_ptr2len(ptr) + 1);
12124 		    *backwards = TRUE;
12125 		}
12126 		else
12127 		{
12128 		    *findc = mb_ptr2char(ptr + mb_ptr2len(ptr) + 1);
12129 		    *backwards = FALSE;
12130 		}
12131 		return;
12132 	    }
12133 	    prev = ptr;
12134 	    ptr += mb_ptr2len(ptr) + 1;
12135 	    if (mb_ptr2char(ptr) == *initc)
12136 	    {
12137 		if (switchit)
12138 		{
12139 		    *findc = *initc;
12140 		    *initc = mb_ptr2char(prev);
12141 		    *backwards = FALSE;
12142 		}
12143 		else
12144 		{
12145 		    *findc = mb_ptr2char(prev);
12146 		    *backwards = TRUE;
12147 		}
12148 		return;
12149 	    }
12150 	    ptr += mb_ptr2len(ptr);
12151 	}
12152 	else
12153 #endif
12154 	{
12155 	    if (*ptr == *initc)
12156 	    {
12157 		if (switchit)
12158 		{
12159 		    *backwards = TRUE;
12160 		    *findc = *initc;
12161 		    *initc = ptr[2];
12162 		}
12163 		else
12164 		{
12165 		    *backwards = FALSE;
12166 		    *findc = ptr[2];
12167 		}
12168 		return;
12169 	    }
12170 	    ptr += 2;
12171 	    if (*ptr == *initc)
12172 	    {
12173 		if (switchit)
12174 		{
12175 		    *backwards = FALSE;
12176 		    *findc = *initc;
12177 		    *initc = ptr[-2];
12178 		}
12179 		else
12180 		{
12181 		    *backwards = TRUE;
12182 		    *findc =  ptr[-2];
12183 		}
12184 		return;
12185 	    }
12186 	    ++ptr;
12187 	}
12188 	if (*ptr == ',')
12189 	    ++ptr;
12190     }
12191 }
12192 
12193 #if defined(FEAT_LINEBREAK) || defined(PROTO)
12194 /*
12195  * This is called when 'breakindentopt' is changed and when a window is
12196  * initialized.
12197  */
12198     static int
12199 briopt_check(win_T *wp)
12200 {
12201     char_u	*p;
12202     int		bri_shift = 0;
12203     long	bri_min = 20;
12204     int		bri_sbr = FALSE;
12205 
12206     p = wp->w_p_briopt;
12207     while (*p != NUL)
12208     {
12209 	if (STRNCMP(p, "shift:", 6) == 0
12210 		 && ((p[6] == '-' && VIM_ISDIGIT(p[7])) || VIM_ISDIGIT(p[6])))
12211 	{
12212 	    p += 6;
12213 	    bri_shift = getdigits(&p);
12214 	}
12215 	else if (STRNCMP(p, "min:", 4) == 0 && VIM_ISDIGIT(p[4]))
12216 	{
12217 	    p += 4;
12218 	    bri_min = getdigits(&p);
12219 	}
12220 	else if (STRNCMP(p, "sbr", 3) == 0)
12221 	{
12222 	    p += 3;
12223 	    bri_sbr = TRUE;
12224 	}
12225 	if (*p != ',' && *p != NUL)
12226 	    return FAIL;
12227 	if (*p == ',')
12228 	    ++p;
12229     }
12230 
12231     wp->w_p_brishift = bri_shift;
12232     wp->w_p_brimin   = bri_min;
12233     wp->w_p_brisbr   = bri_sbr;
12234 
12235     return OK;
12236 }
12237 #endif
12238 
12239 /*
12240  * Get the local or global value of 'backupcopy'.
12241  */
12242     unsigned int
12243 get_bkc_value(buf_T *buf)
12244 {
12245     return buf->b_bkc_flags ? buf->b_bkc_flags : bkc_flags;
12246 }
12247