xref: /vim-8.2.3635/src/option.c (revision 2bf24176)
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 #ifndef SHORT_FNAME
159 # define PV_SN		OPT_BUF(BV_SN)
160 #endif
161 #ifdef FEAT_SYN_HL
162 # define PV_SMC		OPT_BUF(BV_SMC)
163 # define PV_SYN		OPT_BUF(BV_SYN)
164 #endif
165 #ifdef FEAT_SPELL
166 # define PV_SPC		OPT_BUF(BV_SPC)
167 # define PV_SPF		OPT_BUF(BV_SPF)
168 # define PV_SPL		OPT_BUF(BV_SPL)
169 #endif
170 #define PV_STS		OPT_BUF(BV_STS)
171 #ifdef FEAT_SEARCHPATH
172 # define PV_SUA		OPT_BUF(BV_SUA)
173 #endif
174 #define PV_SW		OPT_BUF(BV_SW)
175 #define PV_SWF		OPT_BUF(BV_SWF)
176 #define PV_TAGS		OPT_BOTH(OPT_BUF(BV_TAGS))
177 #define PV_TC		OPT_BOTH(OPT_BUF(BV_TC))
178 #define PV_TS		OPT_BUF(BV_TS)
179 #define PV_TW		OPT_BUF(BV_TW)
180 #define PV_TX		OPT_BUF(BV_TX)
181 #ifdef FEAT_PERSISTENT_UNDO
182 # define PV_UDF		OPT_BUF(BV_UDF)
183 #endif
184 #define PV_WM		OPT_BUF(BV_WM)
185 
186 /*
187  * Definition of the PV_ values for window-local options.
188  * The WV_ values are defined in option.h.
189  */
190 #define PV_LIST		OPT_WIN(WV_LIST)
191 #ifdef FEAT_ARABIC
192 # define PV_ARAB	OPT_WIN(WV_ARAB)
193 #endif
194 #ifdef FEAT_LINEBREAK
195 # define PV_BRI		OPT_WIN(WV_BRI)
196 # define PV_BRIOPT	OPT_WIN(WV_BRIOPT)
197 #endif
198 #ifdef FEAT_DIFF
199 # define PV_DIFF	OPT_WIN(WV_DIFF)
200 #endif
201 #ifdef FEAT_FOLDING
202 # define PV_FDC		OPT_WIN(WV_FDC)
203 # define PV_FEN		OPT_WIN(WV_FEN)
204 # define PV_FDI		OPT_WIN(WV_FDI)
205 # define PV_FDL		OPT_WIN(WV_FDL)
206 # define PV_FDM		OPT_WIN(WV_FDM)
207 # define PV_FML		OPT_WIN(WV_FML)
208 # define PV_FDN		OPT_WIN(WV_FDN)
209 # ifdef FEAT_EVAL
210 #  define PV_FDE	OPT_WIN(WV_FDE)
211 #  define PV_FDT	OPT_WIN(WV_FDT)
212 # endif
213 # define PV_FMR		OPT_WIN(WV_FMR)
214 #endif
215 #ifdef FEAT_LINEBREAK
216 # define PV_LBR		OPT_WIN(WV_LBR)
217 #endif
218 #define PV_NU		OPT_WIN(WV_NU)
219 #define PV_RNU		OPT_WIN(WV_RNU)
220 #ifdef FEAT_LINEBREAK
221 # define PV_NUW		OPT_WIN(WV_NUW)
222 #endif
223 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
224 # define PV_PVW		OPT_WIN(WV_PVW)
225 #endif
226 #ifdef FEAT_RIGHTLEFT
227 # define PV_RL		OPT_WIN(WV_RL)
228 # define PV_RLC		OPT_WIN(WV_RLC)
229 #endif
230 #ifdef FEAT_SCROLLBIND
231 # define PV_SCBIND	OPT_WIN(WV_SCBIND)
232 #endif
233 #define PV_SCROLL	OPT_WIN(WV_SCROLL)
234 #ifdef FEAT_SPELL
235 # define PV_SPELL	OPT_WIN(WV_SPELL)
236 #endif
237 #ifdef FEAT_SYN_HL
238 # define PV_CUC		OPT_WIN(WV_CUC)
239 # define PV_CUL		OPT_WIN(WV_CUL)
240 # define PV_CC		OPT_WIN(WV_CC)
241 #endif
242 #ifdef FEAT_STL_OPT
243 # define PV_STL		OPT_BOTH(OPT_WIN(WV_STL))
244 #endif
245 #define PV_UL		OPT_BOTH(OPT_BUF(BV_UL))
246 #ifdef FEAT_WINDOWS
247 # define PV_WFH		OPT_WIN(WV_WFH)
248 #endif
249 #ifdef FEAT_VERTSPLIT
250 # define PV_WFW		OPT_WIN(WV_WFW)
251 #endif
252 #define PV_WRAP		OPT_WIN(WV_WRAP)
253 #ifdef FEAT_CURSORBIND
254 # define PV_CRBIND	OPT_WIN(WV_CRBIND)
255 #endif
256 #ifdef FEAT_CONCEAL
257 # define PV_COCU	OPT_WIN(WV_COCU)
258 # define PV_COLE	OPT_WIN(WV_COLE)
259 #endif
260 
261 /* WV_ and BV_ values get typecasted to this for the "indir" field */
262 typedef enum
263 {
264     PV_NONE = 0,
265     PV_MAXVAL = 0xffff    /* to avoid warnings for value out of range */
266 } idopt_T;
267 
268 /*
269  * Options local to a window have a value local to a buffer and global to all
270  * buffers.  Indicate this by setting "var" to VAR_WIN.
271  */
272 #define VAR_WIN ((char_u *)-1)
273 
274 /*
275  * These are the global values for options which are also local to a buffer.
276  * Only to be used in option.c!
277  */
278 static int	p_ai;
279 static int	p_bin;
280 #ifdef FEAT_MBYTE
281 static int	p_bomb;
282 #endif
283 #if defined(FEAT_QUICKFIX)
284 static char_u	*p_bh;
285 static char_u	*p_bt;
286 #endif
287 static int	p_bl;
288 static int	p_ci;
289 #ifdef FEAT_CINDENT
290 static int	p_cin;
291 static char_u	*p_cink;
292 static char_u	*p_cino;
293 #endif
294 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
295 static char_u	*p_cinw;
296 #endif
297 #ifdef FEAT_COMMENTS
298 static char_u	*p_com;
299 #endif
300 #ifdef FEAT_FOLDING
301 static char_u	*p_cms;
302 #endif
303 #ifdef FEAT_INS_EXPAND
304 static char_u	*p_cpt;
305 #endif
306 #ifdef FEAT_COMPL_FUNC
307 static char_u	*p_cfu;
308 static char_u	*p_ofu;
309 #endif
310 static int	p_eol;
311 static int	p_fixeol;
312 static int	p_et;
313 #ifdef FEAT_MBYTE
314 static char_u	*p_fenc;
315 #endif
316 static char_u	*p_ff;
317 static char_u	*p_fo;
318 static char_u	*p_flp;
319 #ifdef FEAT_AUTOCMD
320 static char_u	*p_ft;
321 #endif
322 static long	p_iminsert;
323 static long	p_imsearch;
324 #if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
325 static char_u	*p_inex;
326 #endif
327 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
328 static char_u	*p_inde;
329 static char_u	*p_indk;
330 #endif
331 #if defined(FEAT_EVAL)
332 static char_u	*p_fex;
333 #endif
334 static int	p_inf;
335 static char_u	*p_isk;
336 #ifdef FEAT_CRYPT
337 static char_u	*p_key;
338 #endif
339 #ifdef FEAT_LISP
340 static int	p_lisp;
341 #endif
342 static int	p_ml;
343 static int	p_ma;
344 static int	p_mod;
345 static char_u	*p_mps;
346 static char_u	*p_nf;
347 static int	p_pi;
348 #ifdef FEAT_TEXTOBJ
349 static char_u	*p_qe;
350 #endif
351 static int	p_ro;
352 #ifdef FEAT_SMARTINDENT
353 static int	p_si;
354 #endif
355 #ifndef SHORT_FNAME
356 static int	p_sn;
357 #endif
358 static long	p_sts;
359 #if defined(FEAT_SEARCHPATH)
360 static char_u	*p_sua;
361 #endif
362 static long	p_sw;
363 static int	p_swf;
364 #ifdef FEAT_SYN_HL
365 static long	p_smc;
366 static char_u	*p_syn;
367 #endif
368 #ifdef FEAT_SPELL
369 static char_u	*p_spc;
370 static char_u	*p_spf;
371 static char_u	*p_spl;
372 #endif
373 static long	p_ts;
374 static long	p_tw;
375 static int	p_tx;
376 #ifdef FEAT_PERSISTENT_UNDO
377 static int	p_udf;
378 #endif
379 static long	p_wm;
380 #ifdef FEAT_KEYMAP
381 static char_u	*p_keymap;
382 #endif
383 
384 /* Saved values for when 'bin' is set. */
385 static int	p_et_nobin;
386 static int	p_ml_nobin;
387 static long	p_tw_nobin;
388 static long	p_wm_nobin;
389 
390 /* Saved values for when 'paste' is set */
391 static int	p_ai_nopaste;
392 static int	p_et_nopaste;
393 static long	p_sts_nopaste;
394 static long	p_tw_nopaste;
395 static long	p_wm_nopaste;
396 
397 struct vimoption
398 {
399     char	*fullname;	/* full option name */
400     char	*shortname;	/* permissible abbreviation */
401     long_u	flags;		/* see below */
402     char_u	*var;		/* global option: pointer to variable;
403 				 * window-local option: VAR_WIN;
404 				 * buffer-local option: global value */
405     idopt_T	indir;		/* global option: PV_NONE;
406 				 * local option: indirect option index */
407     char_u	*def_val[2];	/* default values for variable (vi and vim) */
408 #ifdef FEAT_EVAL
409     scid_T	scriptID;	/* script in which the option was last set */
410 # define SCRIPTID_INIT , 0
411 #else
412 # define SCRIPTID_INIT
413 #endif
414 };
415 
416 #define VI_DEFAULT  0	    /* def_val[VI_DEFAULT] is Vi default value */
417 #define VIM_DEFAULT 1	    /* def_val[VIM_DEFAULT] is Vim default value */
418 
419 /*
420  * Flags
421  */
422 #define P_BOOL		0x01	/* the option is boolean */
423 #define P_NUM		0x02	/* the option is numeric */
424 #define P_STRING	0x04	/* the option is a string */
425 #define P_ALLOCED	0x08	/* the string option is in allocated memory,
426 				   must use free_string_option() when
427 				   assigning new value. Not set if default is
428 				   the same. */
429 #define P_EXPAND	0x10	/* environment expansion.  NOTE: P_EXPAND can
430 				   never be used for local or hidden options! */
431 #define P_NODEFAULT	0x40	/* don't set to default value */
432 #define P_DEF_ALLOCED	0x80	/* default value is in allocated memory, must
433 				    use vim_free() when assigning new value */
434 #define P_WAS_SET	0x100	/* option has been set/reset */
435 #define P_NO_MKRC	0x200	/* don't include in :mkvimrc output */
436 #define P_VI_DEF	0x400	/* Use Vi default for Vim */
437 #define P_VIM		0x800	/* Vim option, reset when 'cp' set */
438 
439 				/* when option changed, what to display: */
440 #define P_RSTAT		0x1000	/* redraw status lines */
441 #define P_RWIN		0x2000	/* redraw current window */
442 #define P_RBUF		0x4000	/* redraw current buffer */
443 #define P_RALL		0x6000	/* redraw all windows */
444 #define P_RCLR		0x7000	/* clear and redraw all */
445 
446 #define P_COMMA		 0x8000	 /* comma separated list */
447 #define P_ONECOMMA	0x18000L /* P_COMMA and cannot have two consecutive
448 				  * commas */
449 #define P_NODUP		0x20000L /* don't allow duplicate strings */
450 #define P_FLAGLIST	0x40000L /* list of single-char flags */
451 
452 #define P_SECURE	0x80000L /* cannot change in modeline or secure mode */
453 #define P_GETTEXT      0x100000L /* expand default value with _() */
454 #define P_NOGLOB       0x200000L /* do not use local value for global vimrc */
455 #define P_NFNAME       0x400000L /* only normal file name chars allowed */
456 #define P_INSECURE     0x800000L /* option was set from a modeline */
457 #define P_PRI_MKRC    0x1000000L /* priority for :mkvimrc (setting option has
458 				   side effects) */
459 #define P_NO_ML       0x2000000L /* not allowed in modeline */
460 #define P_CURSWANT    0x4000000L /* update curswant required; not needed when
461 				  * there is a redraw flag */
462 
463 #define ISK_LATIN1  (char_u *)"@,48-57,_,192-255"
464 
465 /* 'isprint' for latin1 is also used for MS-Windows cp1252, where 0x80 is used
466  * for the currency sign. */
467 #if defined(MSDOS) || defined(MSWIN)
468 # define ISP_LATIN1 (char_u *)"@,~-255"
469 #else
470 # define ISP_LATIN1 (char_u *)"@,161-255"
471 #endif
472 
473 /* The 16 bit MS-DOS version is low on space, make the string as short as
474  * possible when compiling with few features. */
475 #if defined(FEAT_DIFF) || defined(FEAT_FOLDING) || defined(FEAT_SPELL) \
476 	|| defined(FEAT_VERTSPLIT) || defined(FEAT_CLIPBOARD) \
477 	|| defined(FEAT_INS_EXPAND) || defined(FEAT_SYN_HL) || defined(FEAT_CONCEAL)
478 # 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"
479 #else
480 # 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"
481 #endif
482 
483 /*
484  * options[] is initialized here.
485  * The order of the options MUST be alphabetic for ":set all" and findoption().
486  * All option names MUST start with a lowercase letter (for findoption()).
487  * Exception: "t_" options are at the end.
488  * The options with a NULL variable are 'hidden': a set command for them is
489  * ignored and they are not printed.
490  */
491 static struct vimoption
492 #ifdef FEAT_GUI_W16
493 	_far
494 #endif
495 	options[] =
496 {
497     {"aleph",	    "al",   P_NUM|P_VI_DEF|P_CURSWANT,
498 #ifdef FEAT_RIGHTLEFT
499 			    (char_u *)&p_aleph, PV_NONE,
500 #else
501 			    (char_u *)NULL, PV_NONE,
502 #endif
503 			    {
504 #if (defined(MSDOS) || defined(WIN3264)) && !defined(FEAT_GUI_W32)
505 			    (char_u *)128L,
506 #else
507 			    (char_u *)224L,
508 #endif
509 					    (char_u *)0L} SCRIPTID_INIT},
510     {"antialias",   "anti", P_BOOL|P_VI_DEF|P_VIM|P_RCLR,
511 #if defined(FEAT_GUI) && defined(MACOS_X)
512 			    (char_u *)&p_antialias, PV_NONE,
513 			    {(char_u *)FALSE, (char_u *)FALSE}
514 #else
515 			    (char_u *)NULL, PV_NONE,
516 			    {(char_u *)FALSE, (char_u *)FALSE}
517 #endif
518 			    SCRIPTID_INIT},
519     {"arabic",	    "arab", P_BOOL|P_VI_DEF|P_VIM|P_CURSWANT,
520 #ifdef FEAT_ARABIC
521 			    (char_u *)VAR_WIN, PV_ARAB,
522 #else
523 			    (char_u *)NULL, PV_NONE,
524 #endif
525 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
526     {"arabicshape", "arshape", P_BOOL|P_VI_DEF|P_VIM|P_RCLR,
527 #ifdef FEAT_ARABIC
528 			    (char_u *)&p_arshape, PV_NONE,
529 #else
530 			    (char_u *)NULL, PV_NONE,
531 #endif
532 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
533     {"allowrevins", "ari",  P_BOOL|P_VI_DEF|P_VIM,
534 #ifdef FEAT_RIGHTLEFT
535 			    (char_u *)&p_ari, PV_NONE,
536 #else
537 			    (char_u *)NULL, PV_NONE,
538 #endif
539 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
540     {"altkeymap",   "akm",  P_BOOL|P_VI_DEF,
541 #ifdef FEAT_FKMAP
542 			    (char_u *)&p_altkeymap, PV_NONE,
543 #else
544 			    (char_u *)NULL, PV_NONE,
545 #endif
546 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
547     {"ambiwidth",  "ambw",  P_STRING|P_VI_DEF|P_RCLR,
548 #if defined(FEAT_MBYTE)
549 			    (char_u *)&p_ambw, PV_NONE,
550 			    {(char_u *)"single", (char_u *)0L}
551 #else
552 			    (char_u *)NULL, PV_NONE,
553 			    {(char_u *)0L, (char_u *)0L}
554 #endif
555 			    SCRIPTID_INIT},
556 #ifdef FEAT_AUTOCHDIR
557     {"autochdir",  "acd",   P_BOOL|P_VI_DEF,
558 			    (char_u *)&p_acd, PV_NONE,
559 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
560 #endif
561     {"autoindent",  "ai",   P_BOOL|P_VI_DEF,
562 			    (char_u *)&p_ai, PV_AI,
563 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
564     {"autoprint",   "ap",   P_BOOL|P_VI_DEF,
565 			    (char_u *)NULL, PV_NONE,
566 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
567     {"autoread",    "ar",   P_BOOL|P_VI_DEF,
568 			    (char_u *)&p_ar, PV_AR,
569 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
570     {"autowrite",   "aw",   P_BOOL|P_VI_DEF,
571 			    (char_u *)&p_aw, PV_NONE,
572 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
573     {"autowriteall","awa",  P_BOOL|P_VI_DEF,
574 			    (char_u *)&p_awa, PV_NONE,
575 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
576     {"background",  "bg",   P_STRING|P_VI_DEF|P_RCLR,
577 			    (char_u *)&p_bg, PV_NONE,
578 			    {
579 #if (defined(MSDOS) || defined(WIN3264)) && !defined(FEAT_GUI)
580 			    (char_u *)"dark",
581 #else
582 			    (char_u *)"light",
583 #endif
584 					    (char_u *)0L} SCRIPTID_INIT},
585     {"backspace",   "bs",   P_STRING|P_VI_DEF|P_VIM|P_ONECOMMA|P_NODUP,
586 			    (char_u *)&p_bs, PV_NONE,
587 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
588     {"backup",	    "bk",   P_BOOL|P_VI_DEF|P_VIM,
589 			    (char_u *)&p_bk, PV_NONE,
590 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
591     {"backupcopy",  "bkc",  P_STRING|P_VIM|P_ONECOMMA|P_NODUP,
592 			    (char_u *)&p_bkc, PV_BKC,
593 #ifdef UNIX
594 			    {(char_u *)"yes", (char_u *)"auto"}
595 #else
596 			    {(char_u *)"auto", (char_u *)"auto"}
597 #endif
598 			    SCRIPTID_INIT},
599     {"backupdir",   "bdir", P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA
600 							    |P_NODUP|P_SECURE,
601 			    (char_u *)&p_bdir, PV_NONE,
602 			    {(char_u *)DFLT_BDIR, (char_u *)0L} SCRIPTID_INIT},
603     {"backupext",   "bex",  P_STRING|P_VI_DEF|P_NFNAME,
604 			    (char_u *)&p_bex, PV_NONE,
605 			    {
606 #ifdef VMS
607 			    (char_u *)"_",
608 #else
609 			    (char_u *)"~",
610 #endif
611 					    (char_u *)0L} SCRIPTID_INIT},
612     {"backupskip",  "bsk",  P_STRING|P_VI_DEF|P_ONECOMMA,
613 #ifdef FEAT_WILDIGN
614 			    (char_u *)&p_bsk, PV_NONE,
615 			    {(char_u *)"", (char_u *)0L}
616 #else
617 			    (char_u *)NULL, PV_NONE,
618 			    {(char_u *)0L, (char_u *)0L}
619 #endif
620 			    SCRIPTID_INIT},
621 #ifdef FEAT_BEVAL
622     {"balloondelay","bdlay",P_NUM|P_VI_DEF,
623 			    (char_u *)&p_bdlay, PV_NONE,
624 			    {(char_u *)600L, (char_u *)0L} SCRIPTID_INIT},
625     {"ballooneval", "beval",P_BOOL|P_VI_DEF|P_NO_MKRC,
626 			    (char_u *)&p_beval, PV_NONE,
627 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
628 # ifdef FEAT_EVAL
629     {"balloonexpr", "bexpr", P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
630 			    (char_u *)&p_bexpr, PV_BEXPR,
631 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
632 # endif
633 #endif
634     {"beautify",    "bf",   P_BOOL|P_VI_DEF,
635 			    (char_u *)NULL, PV_NONE,
636 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
637     {"belloff",      "bo",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
638 			    (char_u *)&p_bo, PV_NONE,
639 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
640     {"binary",	    "bin",  P_BOOL|P_VI_DEF|P_RSTAT,
641 			    (char_u *)&p_bin, PV_BIN,
642 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
643     {"bioskey",	    "biosk",P_BOOL|P_VI_DEF,
644 #ifdef MSDOS
645 			    (char_u *)&p_biosk, PV_NONE,
646 #else
647 			    (char_u *)NULL, PV_NONE,
648 #endif
649 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
650     {"bomb",	    NULL,   P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
651 #ifdef FEAT_MBYTE
652 			    (char_u *)&p_bomb, PV_BOMB,
653 #else
654 			    (char_u *)NULL, PV_NONE,
655 #endif
656 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
657     {"breakat",	    "brk",  P_STRING|P_VI_DEF|P_RALL|P_FLAGLIST,
658 #ifdef FEAT_LINEBREAK
659 			    (char_u *)&p_breakat, PV_NONE,
660 			    {(char_u *)" \t!@*-+;:,./?", (char_u *)0L}
661 #else
662 			    (char_u *)NULL, PV_NONE,
663 			    {(char_u *)0L, (char_u *)0L}
664 #endif
665 			    SCRIPTID_INIT},
666     {"breakindent",   "bri",  P_BOOL|P_VI_DEF|P_VIM|P_RWIN,
667 #ifdef FEAT_LINEBREAK
668 			    (char_u *)VAR_WIN, PV_BRI,
669 			    {(char_u *)FALSE, (char_u *)0L}
670 #else
671 			    (char_u *)NULL, PV_NONE,
672 			    {(char_u *)0L, (char_u *)0L}
673 #endif
674 			    SCRIPTID_INIT},
675     {"breakindentopt", "briopt", P_STRING|P_ALLOCED|P_VI_DEF|P_RBUF
676 						  |P_ONECOMMA|P_NODUP,
677 #ifdef FEAT_LINEBREAK
678 			    (char_u *)VAR_WIN, PV_BRIOPT,
679 			    {(char_u *)"", (char_u *)NULL}
680 #else
681 			    (char_u *)NULL, PV_NONE,
682 			    {(char_u *)"", (char_u *)NULL}
683 #endif
684 			    SCRIPTID_INIT},
685     {"browsedir",   "bsdir",P_STRING|P_VI_DEF,
686 #ifdef FEAT_BROWSE
687 			    (char_u *)&p_bsdir, PV_NONE,
688 			    {(char_u *)"last", (char_u *)0L}
689 #else
690 			    (char_u *)NULL, PV_NONE,
691 			    {(char_u *)0L, (char_u *)0L}
692 #endif
693 			    SCRIPTID_INIT},
694     {"bufhidden",   "bh",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB,
695 #if defined(FEAT_QUICKFIX)
696 			    (char_u *)&p_bh, PV_BH,
697 			    {(char_u *)"", (char_u *)0L}
698 #else
699 			    (char_u *)NULL, PV_NONE,
700 			    {(char_u *)0L, (char_u *)0L}
701 #endif
702 			    SCRIPTID_INIT},
703     {"buflisted",   "bl",   P_BOOL|P_VI_DEF|P_NOGLOB,
704 			    (char_u *)&p_bl, PV_BL,
705 			    {(char_u *)1L, (char_u *)0L}
706 			    SCRIPTID_INIT},
707     {"buftype",	    "bt",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB,
708 #if defined(FEAT_QUICKFIX)
709 			    (char_u *)&p_bt, PV_BT,
710 			    {(char_u *)"", (char_u *)0L}
711 #else
712 			    (char_u *)NULL, PV_NONE,
713 			    {(char_u *)0L, (char_u *)0L}
714 #endif
715 			    SCRIPTID_INIT},
716     {"casemap",	    "cmp",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
717 #ifdef FEAT_MBYTE
718 			    (char_u *)&p_cmp, PV_NONE,
719 			    {(char_u *)"internal,keepascii", (char_u *)0L}
720 #else
721 			    (char_u *)NULL, PV_NONE,
722 			    {(char_u *)0L, (char_u *)0L}
723 #endif
724 			    SCRIPTID_INIT},
725     {"cdpath",	    "cd",   P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
726 #ifdef FEAT_SEARCHPATH
727 			    (char_u *)&p_cdpath, PV_NONE,
728 			    {(char_u *)",,", (char_u *)0L}
729 #else
730 			    (char_u *)NULL, PV_NONE,
731 			    {(char_u *)0L, (char_u *)0L}
732 #endif
733 			    SCRIPTID_INIT},
734     {"cedit",	    NULL,   P_STRING,
735 #ifdef FEAT_CMDWIN
736 			    (char_u *)&p_cedit, PV_NONE,
737 			    {(char_u *)"", (char_u *)CTRL_F_STR}
738 #else
739 			    (char_u *)NULL, PV_NONE,
740 			    {(char_u *)0L, (char_u *)0L}
741 #endif
742 			    SCRIPTID_INIT},
743     {"charconvert",  "ccv", P_STRING|P_VI_DEF|P_SECURE,
744 #if defined(FEAT_MBYTE) && defined(FEAT_EVAL)
745 			    (char_u *)&p_ccv, PV_NONE,
746 			    {(char_u *)"", (char_u *)0L}
747 #else
748 			    (char_u *)NULL, PV_NONE,
749 			    {(char_u *)0L, (char_u *)0L}
750 #endif
751 			    SCRIPTID_INIT},
752     {"cindent",	    "cin",  P_BOOL|P_VI_DEF|P_VIM,
753 #ifdef FEAT_CINDENT
754 			    (char_u *)&p_cin, PV_CIN,
755 #else
756 			    (char_u *)NULL, PV_NONE,
757 #endif
758 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
759     {"cinkeys",	    "cink", P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
760 #ifdef FEAT_CINDENT
761 			    (char_u *)&p_cink, PV_CINK,
762 			    {(char_u *)"0{,0},0),:,0#,!^F,o,O,e", (char_u *)0L}
763 #else
764 			    (char_u *)NULL, PV_NONE,
765 			    {(char_u *)0L, (char_u *)0L}
766 #endif
767 			    SCRIPTID_INIT},
768     {"cinoptions",  "cino", P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
769 #ifdef FEAT_CINDENT
770 			    (char_u *)&p_cino, PV_CINO,
771 #else
772 			    (char_u *)NULL, PV_NONE,
773 #endif
774 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
775     {"cinwords",    "cinw", P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
776 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
777 			    (char_u *)&p_cinw, PV_CINW,
778 			    {(char_u *)"if,else,while,do,for,switch",
779 				(char_u *)0L}
780 #else
781 			    (char_u *)NULL, PV_NONE,
782 			    {(char_u *)0L, (char_u *)0L}
783 #endif
784 			    SCRIPTID_INIT},
785     {"clipboard",   "cb",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
786 #ifdef FEAT_CLIPBOARD
787 			    (char_u *)&p_cb, PV_NONE,
788 # ifdef FEAT_XCLIPBOARD
789 			    {(char_u *)"autoselect,exclude:cons\\|linux",
790 							       (char_u *)0L}
791 # else
792 			    {(char_u *)"", (char_u *)0L}
793 # endif
794 #else
795 			    (char_u *)NULL, PV_NONE,
796 			    {(char_u *)"", (char_u *)0L}
797 #endif
798 			    SCRIPTID_INIT},
799     {"cmdheight",   "ch",   P_NUM|P_VI_DEF|P_RALL,
800 			    (char_u *)&p_ch, PV_NONE,
801 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
802     {"cmdwinheight", "cwh", P_NUM|P_VI_DEF,
803 #ifdef FEAT_CMDWIN
804 			    (char_u *)&p_cwh, PV_NONE,
805 #else
806 			    (char_u *)NULL, PV_NONE,
807 #endif
808 			    {(char_u *)7L, (char_u *)0L} SCRIPTID_INIT},
809     {"colorcolumn", "cc",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP|P_RWIN,
810 #ifdef FEAT_SYN_HL
811 			    (char_u *)VAR_WIN, PV_CC,
812 #else
813 			    (char_u *)NULL, PV_NONE,
814 #endif
815 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
816     {"columns",	    "co",   P_NUM|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RCLR,
817 			    (char_u *)&Columns, PV_NONE,
818 			    {(char_u *)80L, (char_u *)0L} SCRIPTID_INIT},
819     {"comments",    "com",  P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA
820 							  |P_NODUP|P_CURSWANT,
821 #ifdef FEAT_COMMENTS
822 			    (char_u *)&p_com, PV_COM,
823 			    {(char_u *)"s1:/*,mb:*,ex:*/,://,b:#,:%,:XCOMM,n:>,fb:-",
824 				(char_u *)0L}
825 #else
826 			    (char_u *)NULL, PV_NONE,
827 			    {(char_u *)0L, (char_u *)0L}
828 #endif
829 			    SCRIPTID_INIT},
830     {"commentstring", "cms", P_STRING|P_ALLOCED|P_VI_DEF|P_CURSWANT,
831 #ifdef FEAT_FOLDING
832 			    (char_u *)&p_cms, PV_CMS,
833 			    {(char_u *)"/*%s*/", (char_u *)0L}
834 #else
835 			    (char_u *)NULL, PV_NONE,
836 			    {(char_u *)0L, (char_u *)0L}
837 #endif
838 			    SCRIPTID_INIT},
839 			    /* P_PRI_MKRC isn't needed here, optval_default()
840 			     * always returns TRUE for 'compatible' */
841     {"compatible",  "cp",   P_BOOL|P_RALL,
842 			    (char_u *)&p_cp, PV_NONE,
843 			    {(char_u *)TRUE, (char_u *)FALSE} SCRIPTID_INIT},
844     {"complete",    "cpt",  P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
845 #ifdef FEAT_INS_EXPAND
846 			    (char_u *)&p_cpt, PV_CPT,
847 			    {(char_u *)".,w,b,u,t,i", (char_u *)0L}
848 #else
849 			    (char_u *)NULL, PV_NONE,
850 			    {(char_u *)0L, (char_u *)0L}
851 #endif
852 			    SCRIPTID_INIT},
853     {"concealcursor","cocu", P_STRING|P_ALLOCED|P_RWIN|P_VI_DEF,
854 #ifdef FEAT_CONCEAL
855 			    (char_u *)VAR_WIN, PV_COCU,
856 			    {(char_u *)"", (char_u *)NULL}
857 #else
858 			    (char_u *)NULL, PV_NONE,
859 			    {(char_u *)NULL, (char_u *)0L}
860 #endif
861 			    SCRIPTID_INIT},
862     {"conceallevel","cole", P_NUM|P_RWIN|P_VI_DEF,
863 #ifdef FEAT_CONCEAL
864 			    (char_u *)VAR_WIN, PV_COLE,
865 #else
866 			    (char_u *)NULL, PV_NONE,
867 #endif
868 			    {(char_u *)0L, (char_u *)0L}
869 			    SCRIPTID_INIT},
870     {"completefunc", "cfu", P_STRING|P_ALLOCED|P_VI_DEF|P_SECURE,
871 #ifdef FEAT_COMPL_FUNC
872 			    (char_u *)&p_cfu, PV_CFU,
873 			    {(char_u *)"", (char_u *)0L}
874 #else
875 			    (char_u *)NULL, PV_NONE,
876 			    {(char_u *)0L, (char_u *)0L}
877 #endif
878 			    SCRIPTID_INIT},
879     {"completeopt",   "cot",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
880 #ifdef FEAT_INS_EXPAND
881 			    (char_u *)&p_cot, PV_NONE,
882 			    {(char_u *)"menu,preview", (char_u *)0L}
883 #else
884 			    (char_u *)NULL, PV_NONE,
885 			    {(char_u *)0L, (char_u *)0L}
886 #endif
887 			    SCRIPTID_INIT},
888     {"confirm",     "cf",   P_BOOL|P_VI_DEF,
889 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
890 			    (char_u *)&p_confirm, PV_NONE,
891 #else
892 			    (char_u *)NULL, PV_NONE,
893 #endif
894 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
895     {"conskey",	    "consk",P_BOOL|P_VI_DEF,
896 #ifdef MSDOS
897 			    (char_u *)&p_consk, PV_NONE,
898 #else
899 			    (char_u *)NULL, PV_NONE,
900 #endif
901 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
902     {"copyindent",  "ci",   P_BOOL|P_VI_DEF|P_VIM,
903 			    (char_u *)&p_ci, PV_CI,
904 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
905     {"cpoptions",   "cpo",  P_STRING|P_VIM|P_RALL|P_FLAGLIST,
906 			    (char_u *)&p_cpo, PV_NONE,
907 			    {(char_u *)CPO_VI, (char_u *)CPO_VIM}
908 			    SCRIPTID_INIT},
909     {"cryptmethod", "cm",   P_STRING|P_ALLOCED|P_VI_DEF,
910 #ifdef FEAT_CRYPT
911 			    (char_u *)&p_cm, PV_CM,
912 			    {(char_u *)"zip", (char_u *)0L}
913 #else
914 			    (char_u *)NULL, PV_NONE,
915 			    {(char_u *)0L, (char_u *)0L}
916 #endif
917 			    SCRIPTID_INIT},
918     {"cscopepathcomp", "cspc", P_NUM|P_VI_DEF|P_VIM,
919 #ifdef FEAT_CSCOPE
920 			    (char_u *)&p_cspc, PV_NONE,
921 #else
922 			    (char_u *)NULL, PV_NONE,
923 #endif
924 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
925     {"cscopeprg",   "csprg", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
926 #ifdef FEAT_CSCOPE
927 			    (char_u *)&p_csprg, PV_NONE,
928 			    {(char_u *)"cscope", (char_u *)0L}
929 #else
930 			    (char_u *)NULL, PV_NONE,
931 			    {(char_u *)0L, (char_u *)0L}
932 #endif
933 			    SCRIPTID_INIT},
934     {"cscopequickfix", "csqf", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
935 #if defined(FEAT_CSCOPE) && defined(FEAT_QUICKFIX)
936 			    (char_u *)&p_csqf, PV_NONE,
937 			    {(char_u *)"", (char_u *)0L}
938 #else
939 			    (char_u *)NULL, PV_NONE,
940 			    {(char_u *)0L, (char_u *)0L}
941 #endif
942 			    SCRIPTID_INIT},
943     {"cscoperelative", "csre", P_BOOL|P_VI_DEF|P_VIM,
944 #ifdef FEAT_CSCOPE
945 			    (char_u *)&p_csre, PV_NONE,
946 #else
947 			    (char_u *)NULL, PV_NONE,
948 #endif
949 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
950     {"cscopetag",   "cst",  P_BOOL|P_VI_DEF|P_VIM,
951 #ifdef FEAT_CSCOPE
952 			    (char_u *)&p_cst, PV_NONE,
953 #else
954 			    (char_u *)NULL, PV_NONE,
955 #endif
956 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
957     {"cscopetagorder", "csto", P_NUM|P_VI_DEF|P_VIM,
958 #ifdef FEAT_CSCOPE
959 			    (char_u *)&p_csto, PV_NONE,
960 #else
961 			    (char_u *)NULL, PV_NONE,
962 #endif
963 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
964     {"cscopeverbose", "csverb", P_BOOL|P_VI_DEF|P_VIM,
965 #ifdef FEAT_CSCOPE
966 			    (char_u *)&p_csverbose, PV_NONE,
967 #else
968 			    (char_u *)NULL, PV_NONE,
969 #endif
970 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
971     {"cursorbind",  "crb",  P_BOOL|P_VI_DEF,
972 #ifdef FEAT_CURSORBIND
973 			    (char_u *)VAR_WIN, PV_CRBIND,
974 #else
975 			    (char_u *)NULL, PV_NONE,
976 #endif
977 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
978     {"cursorcolumn", "cuc", P_BOOL|P_VI_DEF|P_RWIN,
979 #ifdef FEAT_SYN_HL
980 			    (char_u *)VAR_WIN, PV_CUC,
981 #else
982 			    (char_u *)NULL, PV_NONE,
983 #endif
984 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
985     {"cursorline",   "cul", P_BOOL|P_VI_DEF|P_RWIN,
986 #ifdef FEAT_SYN_HL
987 			    (char_u *)VAR_WIN, PV_CUL,
988 #else
989 			    (char_u *)NULL, PV_NONE,
990 #endif
991 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
992     {"debug",	    NULL,   P_STRING|P_VI_DEF,
993 			    (char_u *)&p_debug, PV_NONE,
994 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
995     {"define",	    "def",  P_STRING|P_ALLOCED|P_VI_DEF|P_CURSWANT,
996 #ifdef FEAT_FIND_ID
997 			    (char_u *)&p_def, PV_DEF,
998 			    {(char_u *)"^\\s*#\\s*define", (char_u *)0L}
999 #else
1000 			    (char_u *)NULL, PV_NONE,
1001 			    {(char_u *)NULL, (char_u *)0L}
1002 #endif
1003 			    SCRIPTID_INIT},
1004     {"delcombine", "deco",  P_BOOL|P_VI_DEF|P_VIM,
1005 #ifdef FEAT_MBYTE
1006 			    (char_u *)&p_deco, PV_NONE,
1007 #else
1008 			    (char_u *)NULL, PV_NONE,
1009 #endif
1010 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1011     {"dictionary",  "dict", P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA|P_NODUP,
1012 #ifdef FEAT_INS_EXPAND
1013 			    (char_u *)&p_dict, PV_DICT,
1014 #else
1015 			    (char_u *)NULL, PV_NONE,
1016 #endif
1017 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1018     {"diff",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN|P_NOGLOB,
1019 #ifdef FEAT_DIFF
1020 			    (char_u *)VAR_WIN, PV_DIFF,
1021 #else
1022 			    (char_u *)NULL, PV_NONE,
1023 #endif
1024 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1025     {"diffexpr",    "dex",  P_STRING|P_VI_DEF|P_SECURE|P_CURSWANT,
1026 #if defined(FEAT_DIFF) && defined(FEAT_EVAL)
1027 			    (char_u *)&p_dex, PV_NONE,
1028 			    {(char_u *)"", (char_u *)0L}
1029 #else
1030 			    (char_u *)NULL, PV_NONE,
1031 			    {(char_u *)0L, (char_u *)0L}
1032 #endif
1033 			    SCRIPTID_INIT},
1034     {"diffopt",	    "dip",  P_STRING|P_ALLOCED|P_VI_DEF|P_RWIN|P_ONECOMMA
1035 								     |P_NODUP,
1036 #ifdef FEAT_DIFF
1037 			    (char_u *)&p_dip, PV_NONE,
1038 			    {(char_u *)"filler", (char_u *)NULL}
1039 #else
1040 			    (char_u *)NULL, PV_NONE,
1041 			    {(char_u *)"", (char_u *)NULL}
1042 #endif
1043 			    SCRIPTID_INIT},
1044     {"digraph",	    "dg",   P_BOOL|P_VI_DEF|P_VIM,
1045 #ifdef FEAT_DIGRAPHS
1046 			    (char_u *)&p_dg, PV_NONE,
1047 #else
1048 			    (char_u *)NULL, PV_NONE,
1049 #endif
1050 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1051     {"directory",   "dir",  P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA
1052 							    |P_NODUP|P_SECURE,
1053 			    (char_u *)&p_dir, PV_NONE,
1054 			    {(char_u *)DFLT_DIR, (char_u *)0L} SCRIPTID_INIT},
1055     {"display",	    "dy",   P_STRING|P_VI_DEF|P_ONECOMMA|P_RALL|P_NODUP,
1056 			    (char_u *)&p_dy, PV_NONE,
1057 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1058     {"eadirection", "ead",  P_STRING|P_VI_DEF,
1059 #ifdef FEAT_VERTSPLIT
1060 			    (char_u *)&p_ead, PV_NONE,
1061 			    {(char_u *)"both", (char_u *)0L}
1062 #else
1063 			    (char_u *)NULL, PV_NONE,
1064 			    {(char_u *)NULL, (char_u *)0L}
1065 #endif
1066 			    SCRIPTID_INIT},
1067     {"edcompatible","ed",   P_BOOL|P_VI_DEF,
1068 			    (char_u *)&p_ed, PV_NONE,
1069 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1070     {"encoding",    "enc",  P_STRING|P_VI_DEF|P_RCLR|P_NO_ML,
1071 #ifdef FEAT_MBYTE
1072 			    (char_u *)&p_enc, PV_NONE,
1073 			    {(char_u *)ENC_DFLT, (char_u *)0L}
1074 #else
1075 			    (char_u *)NULL, PV_NONE,
1076 			    {(char_u *)0L, (char_u *)0L}
1077 #endif
1078 			    SCRIPTID_INIT},
1079     {"endofline",   "eol",  P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
1080 			    (char_u *)&p_eol, PV_EOL,
1081 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1082     {"equalalways", "ea",   P_BOOL|P_VI_DEF|P_RALL,
1083 			    (char_u *)&p_ea, PV_NONE,
1084 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1085     {"equalprg",    "ep",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1086 			    (char_u *)&p_ep, PV_EP,
1087 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1088     {"errorbells",  "eb",   P_BOOL|P_VI_DEF,
1089 			    (char_u *)&p_eb, PV_NONE,
1090 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1091     {"errorfile",   "ef",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1092 #ifdef FEAT_QUICKFIX
1093 			    (char_u *)&p_ef, PV_NONE,
1094 			    {(char_u *)DFLT_ERRORFILE, (char_u *)0L}
1095 #else
1096 			    (char_u *)NULL, PV_NONE,
1097 			    {(char_u *)NULL, (char_u *)0L}
1098 #endif
1099 			    SCRIPTID_INIT},
1100     {"errorformat", "efm",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1101 #ifdef FEAT_QUICKFIX
1102 			    (char_u *)&p_efm, PV_EFM,
1103 			    {(char_u *)DFLT_EFM, (char_u *)0L}
1104 #else
1105 			    (char_u *)NULL, PV_NONE,
1106 			    {(char_u *)NULL, (char_u *)0L}
1107 #endif
1108 			    SCRIPTID_INIT},
1109     {"esckeys",	    "ek",   P_BOOL|P_VIM,
1110 			    (char_u *)&p_ek, PV_NONE,
1111 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
1112     {"eventignore", "ei",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1113 #ifdef FEAT_AUTOCMD
1114 			    (char_u *)&p_ei, PV_NONE,
1115 #else
1116 			    (char_u *)NULL, PV_NONE,
1117 #endif
1118 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1119     {"expandtab",   "et",   P_BOOL|P_VI_DEF|P_VIM,
1120 			    (char_u *)&p_et, PV_ET,
1121 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1122     {"exrc",	    "ex",   P_BOOL|P_VI_DEF|P_SECURE,
1123 			    (char_u *)&p_exrc, PV_NONE,
1124 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1125     {"fileencoding","fenc", P_STRING|P_ALLOCED|P_VI_DEF|P_RSTAT|P_RBUF
1126 								   |P_NO_MKRC,
1127 #ifdef FEAT_MBYTE
1128 			    (char_u *)&p_fenc, PV_FENC,
1129 			    {(char_u *)"", (char_u *)0L}
1130 #else
1131 			    (char_u *)NULL, PV_NONE,
1132 			    {(char_u *)0L, (char_u *)0L}
1133 #endif
1134 			    SCRIPTID_INIT},
1135     {"fileencodings","fencs", P_STRING|P_VI_DEF|P_ONECOMMA,
1136 #ifdef FEAT_MBYTE
1137 			    (char_u *)&p_fencs, PV_NONE,
1138 			    {(char_u *)"ucs-bom", (char_u *)0L}
1139 #else
1140 			    (char_u *)NULL, PV_NONE,
1141 			    {(char_u *)0L, (char_u *)0L}
1142 #endif
1143 			    SCRIPTID_INIT},
1144     {"fileformat",  "ff",   P_STRING|P_ALLOCED|P_VI_DEF|P_RSTAT|P_NO_MKRC
1145 								  |P_CURSWANT,
1146 			    (char_u *)&p_ff, PV_FF,
1147 			    {(char_u *)DFLT_FF, (char_u *)0L} SCRIPTID_INIT},
1148     {"fileformats", "ffs",  P_STRING|P_VIM|P_ONECOMMA|P_NODUP,
1149 			    (char_u *)&p_ffs, PV_NONE,
1150 			    {(char_u *)DFLT_FFS_VI, (char_u *)DFLT_FFS_VIM}
1151 			    SCRIPTID_INIT},
1152     {"fileignorecase", "fic", P_BOOL|P_VI_DEF,
1153 			    (char_u *)&p_fic, PV_NONE,
1154 			    {
1155 #ifdef CASE_INSENSITIVE_FILENAME
1156 				    (char_u *)TRUE,
1157 #else
1158 				    (char_u *)FALSE,
1159 #endif
1160 					(char_u *)0L} SCRIPTID_INIT},
1161     {"filetype",    "ft",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB|P_NFNAME,
1162 #ifdef FEAT_AUTOCMD
1163 			    (char_u *)&p_ft, PV_FT,
1164 			    {(char_u *)"", (char_u *)0L}
1165 #else
1166 			    (char_u *)NULL, PV_NONE,
1167 			    {(char_u *)0L, (char_u *)0L}
1168 #endif
1169 			    SCRIPTID_INIT},
1170     {"fillchars",   "fcs",  P_STRING|P_VI_DEF|P_RALL|P_ONECOMMA|P_NODUP,
1171 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
1172 			    (char_u *)&p_fcs, PV_NONE,
1173 			    {(char_u *)"vert:|,fold:-", (char_u *)0L}
1174 #else
1175 			    (char_u *)NULL, PV_NONE,
1176 			    {(char_u *)"", (char_u *)0L}
1177 #endif
1178 			    SCRIPTID_INIT},
1179     {"fixendofline",  "fixeol", P_BOOL|P_VI_DEF|P_RSTAT,
1180 			    (char_u *)&p_fixeol, PV_FIXEOL,
1181 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1182     {"fkmap",	    "fk",   P_BOOL|P_VI_DEF,
1183 #ifdef FEAT_FKMAP
1184 			    (char_u *)&p_fkmap, PV_NONE,
1185 #else
1186 			    (char_u *)NULL, PV_NONE,
1187 #endif
1188 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1189     {"flash",	    "fl",   P_BOOL|P_VI_DEF,
1190 			    (char_u *)NULL, PV_NONE,
1191 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1192 #ifdef FEAT_FOLDING
1193     {"foldclose",   "fcl",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP|P_RWIN,
1194 			    (char_u *)&p_fcl, PV_NONE,
1195 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1196     {"foldcolumn",  "fdc",  P_NUM|P_VI_DEF|P_RWIN,
1197 			    (char_u *)VAR_WIN, PV_FDC,
1198 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1199     {"foldenable",  "fen",  P_BOOL|P_VI_DEF|P_RWIN,
1200 			    (char_u *)VAR_WIN, PV_FEN,
1201 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1202     {"foldexpr",    "fde",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1203 # ifdef FEAT_EVAL
1204 			    (char_u *)VAR_WIN, PV_FDE,
1205 			    {(char_u *)"0", (char_u *)NULL}
1206 # else
1207 			    (char_u *)NULL, PV_NONE,
1208 			    {(char_u *)NULL, (char_u *)0L}
1209 # endif
1210 			    SCRIPTID_INIT},
1211     {"foldignore",  "fdi",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1212 			    (char_u *)VAR_WIN, PV_FDI,
1213 			    {(char_u *)"#", (char_u *)NULL} SCRIPTID_INIT},
1214     {"foldlevel",   "fdl",  P_NUM|P_VI_DEF|P_RWIN,
1215 			    (char_u *)VAR_WIN, PV_FDL,
1216 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
1217     {"foldlevelstart","fdls", P_NUM|P_VI_DEF|P_CURSWANT,
1218 			    (char_u *)&p_fdls, PV_NONE,
1219 			    {(char_u *)-1L, (char_u *)0L} SCRIPTID_INIT},
1220     {"foldmarker",  "fmr",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|
1221 						    P_RWIN|P_ONECOMMA|P_NODUP,
1222 			    (char_u *)VAR_WIN, PV_FMR,
1223 			    {(char_u *)"{{{,}}}", (char_u *)NULL}
1224 			    SCRIPTID_INIT},
1225     {"foldmethod",  "fdm",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1226 			    (char_u *)VAR_WIN, PV_FDM,
1227 			    {(char_u *)"manual", (char_u *)NULL} SCRIPTID_INIT},
1228     {"foldminlines","fml",  P_NUM|P_VI_DEF|P_RWIN,
1229 			    (char_u *)VAR_WIN, PV_FML,
1230 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
1231     {"foldnestmax", "fdn",  P_NUM|P_VI_DEF|P_RWIN,
1232 			    (char_u *)VAR_WIN, PV_FDN,
1233 			    {(char_u *)20L, (char_u *)0L} SCRIPTID_INIT},
1234     {"foldopen",    "fdo",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP|P_CURSWANT,
1235 			    (char_u *)&p_fdo, PV_NONE,
1236 		 {(char_u *)"block,hor,mark,percent,quickfix,search,tag,undo",
1237 						 (char_u *)0L} SCRIPTID_INIT},
1238     {"foldtext",    "fdt",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1239 # ifdef FEAT_EVAL
1240 			    (char_u *)VAR_WIN, PV_FDT,
1241 			    {(char_u *)"foldtext()", (char_u *)NULL}
1242 # else
1243 			    (char_u *)NULL, PV_NONE,
1244 			    {(char_u *)NULL, (char_u *)0L}
1245 # endif
1246 			    SCRIPTID_INIT},
1247 #endif
1248     {"formatexpr", "fex",   P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
1249 #ifdef FEAT_EVAL
1250 			    (char_u *)&p_fex, PV_FEX,
1251 			    {(char_u *)"", (char_u *)0L}
1252 #else
1253 			    (char_u *)NULL, PV_NONE,
1254 			    {(char_u *)0L, (char_u *)0L}
1255 #endif
1256 			    SCRIPTID_INIT},
1257     {"formatoptions","fo",  P_STRING|P_ALLOCED|P_VIM|P_FLAGLIST,
1258 			    (char_u *)&p_fo, PV_FO,
1259 			    {(char_u *)DFLT_FO_VI, (char_u *)DFLT_FO_VIM}
1260 			    SCRIPTID_INIT},
1261     {"formatlistpat","flp", P_STRING|P_ALLOCED|P_VI_DEF,
1262 			    (char_u *)&p_flp, PV_FLP,
1263 			    {(char_u *)"^\\s*\\d\\+[\\]:.)}\\t ]\\s*",
1264 						 (char_u *)0L} SCRIPTID_INIT},
1265     {"formatprg",   "fp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1266 			    (char_u *)&p_fp, PV_NONE,
1267 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1268     {"fsync",       "fs",   P_BOOL|P_SECURE|P_VI_DEF,
1269 #ifdef HAVE_FSYNC
1270 			    (char_u *)&p_fs, PV_NONE,
1271 			    {(char_u *)TRUE, (char_u *)0L}
1272 #else
1273 			    (char_u *)NULL, PV_NONE,
1274 			    {(char_u *)FALSE, (char_u *)0L}
1275 #endif
1276 			    SCRIPTID_INIT},
1277     {"gdefault",    "gd",   P_BOOL|P_VI_DEF|P_VIM,
1278 			    (char_u *)&p_gd, PV_NONE,
1279 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1280     {"graphic",	    "gr",   P_BOOL|P_VI_DEF,
1281 			    (char_u *)NULL, PV_NONE,
1282 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1283     {"grepformat",  "gfm",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1284 #ifdef FEAT_QUICKFIX
1285 			    (char_u *)&p_gefm, PV_NONE,
1286 			    {(char_u *)DFLT_GREPFORMAT, (char_u *)0L}
1287 #else
1288 			    (char_u *)NULL, PV_NONE,
1289 			    {(char_u *)NULL, (char_u *)0L}
1290 #endif
1291 			    SCRIPTID_INIT},
1292     {"grepprg",	    "gp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1293 #ifdef FEAT_QUICKFIX
1294 			    (char_u *)&p_gp, PV_GP,
1295 			    {
1296 # ifdef WIN3264
1297 			    /* may be changed to "grep -n" in os_win32.c */
1298 			    (char_u *)"findstr /n",
1299 # else
1300 #  ifdef UNIX
1301 			    /* Add an extra file name so that grep will always
1302 			     * insert a file name in the match line. */
1303 			    (char_u *)"grep -n $* /dev/null",
1304 #  else
1305 #   ifdef VMS
1306 			    (char_u *)"SEARCH/NUMBERS ",
1307 #   else
1308 			    (char_u *)"grep -n ",
1309 #   endif
1310 #  endif
1311 # endif
1312 			    (char_u *)0L}
1313 #else
1314 			    (char_u *)NULL, PV_NONE,
1315 			    {(char_u *)NULL, (char_u *)0L}
1316 #endif
1317 			    SCRIPTID_INIT},
1318     {"guicursor",    "gcr",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1319 #ifdef CURSOR_SHAPE
1320 			    (char_u *)&p_guicursor, PV_NONE,
1321 			    {
1322 # ifdef FEAT_GUI
1323 				(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",
1324 # else	/* MSDOS or Win32 console */
1325 				(char_u *)"n-v-c:block,o:hor50,i-ci:hor15,r-cr:hor30,sm:block",
1326 # endif
1327 				    (char_u *)0L}
1328 #else
1329 			    (char_u *)NULL, PV_NONE,
1330 			    {(char_u *)NULL, (char_u *)0L}
1331 #endif
1332 			    SCRIPTID_INIT},
1333     {"guifont",	    "gfn",  P_STRING|P_VI_DEF|P_RCLR|P_ONECOMMA|P_NODUP,
1334 #ifdef FEAT_GUI
1335 			    (char_u *)&p_guifont, PV_NONE,
1336 			    {(char_u *)"", (char_u *)0L}
1337 #else
1338 			    (char_u *)NULL, PV_NONE,
1339 			    {(char_u *)NULL, (char_u *)0L}
1340 #endif
1341 			    SCRIPTID_INIT},
1342     {"guifontset",  "gfs",  P_STRING|P_VI_DEF|P_RCLR|P_ONECOMMA,
1343 #if defined(FEAT_GUI) && defined(FEAT_XFONTSET)
1344 			    (char_u *)&p_guifontset, PV_NONE,
1345 			    {(char_u *)"", (char_u *)0L}
1346 #else
1347 			    (char_u *)NULL, PV_NONE,
1348 			    {(char_u *)NULL, (char_u *)0L}
1349 #endif
1350 			    SCRIPTID_INIT},
1351     {"guifontwide", "gfw",  P_STRING|P_VI_DEF|P_RCLR|P_ONECOMMA|P_NODUP,
1352 #if defined(FEAT_GUI) && defined(FEAT_MBYTE)
1353 			    (char_u *)&p_guifontwide, PV_NONE,
1354 			    {(char_u *)"", (char_u *)0L}
1355 #else
1356 			    (char_u *)NULL, PV_NONE,
1357 			    {(char_u *)NULL, (char_u *)0L}
1358 #endif
1359 			    SCRIPTID_INIT},
1360     {"guiheadroom", "ghr",  P_NUM|P_VI_DEF,
1361 #if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_X11)
1362 			    (char_u *)&p_ghr, PV_NONE,
1363 #else
1364 			    (char_u *)NULL, PV_NONE,
1365 #endif
1366 			    {(char_u *)50L, (char_u *)0L} SCRIPTID_INIT},
1367     {"guioptions",  "go",   P_STRING|P_VI_DEF|P_RALL|P_FLAGLIST,
1368 #if defined(FEAT_GUI)
1369 			    (char_u *)&p_go, PV_NONE,
1370 # if defined(UNIX) && !defined(MACOS)
1371 			    {(char_u *)"aegimrLtT", (char_u *)0L}
1372 # else
1373 			    {(char_u *)"egmrLtT", (char_u *)0L}
1374 # endif
1375 #else
1376 			    (char_u *)NULL, PV_NONE,
1377 			    {(char_u *)NULL, (char_u *)0L}
1378 #endif
1379 			    SCRIPTID_INIT},
1380     {"guipty",	    NULL,   P_BOOL|P_VI_DEF,
1381 #if defined(FEAT_GUI)
1382 			    (char_u *)&p_guipty, PV_NONE,
1383 #else
1384 			    (char_u *)NULL, PV_NONE,
1385 #endif
1386 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1387     {"guitablabel",  "gtl", P_STRING|P_VI_DEF|P_RWIN,
1388 #if defined(FEAT_GUI_TABLINE)
1389 			    (char_u *)&p_gtl, PV_NONE,
1390 			    {(char_u *)"", (char_u *)0L}
1391 #else
1392 			    (char_u *)NULL, PV_NONE,
1393 			    {(char_u *)NULL, (char_u *)0L}
1394 #endif
1395 			    SCRIPTID_INIT},
1396     {"guitabtooltip",  "gtt", P_STRING|P_VI_DEF|P_RWIN,
1397 #if defined(FEAT_GUI_TABLINE)
1398 			    (char_u *)&p_gtt, PV_NONE,
1399 			    {(char_u *)"", (char_u *)0L}
1400 #else
1401 			    (char_u *)NULL, PV_NONE,
1402 			    {(char_u *)NULL, (char_u *)0L}
1403 #endif
1404 			    SCRIPTID_INIT},
1405     {"hardtabs",    "ht",   P_NUM|P_VI_DEF,
1406 			    (char_u *)NULL, PV_NONE,
1407 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
1408     {"helpfile",    "hf",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1409 			    (char_u *)&p_hf, PV_NONE,
1410 			    {(char_u *)DFLT_HELPFILE, (char_u *)0L}
1411 			    SCRIPTID_INIT},
1412     {"helpheight",  "hh",   P_NUM|P_VI_DEF,
1413 #ifdef FEAT_WINDOWS
1414 			    (char_u *)&p_hh, PV_NONE,
1415 #else
1416 			    (char_u *)NULL, PV_NONE,
1417 #endif
1418 			    {(char_u *)20L, (char_u *)0L} SCRIPTID_INIT},
1419     {"helplang",    "hlg",  P_STRING|P_VI_DEF|P_ONECOMMA,
1420 #ifdef FEAT_MULTI_LANG
1421 			    (char_u *)&p_hlg, PV_NONE,
1422 			    {(char_u *)"", (char_u *)0L}
1423 #else
1424 			    (char_u *)NULL, PV_NONE,
1425 			    {(char_u *)0L, (char_u *)0L}
1426 #endif
1427 			    SCRIPTID_INIT},
1428     {"hidden",	    "hid",  P_BOOL|P_VI_DEF,
1429 			    (char_u *)&p_hid, PV_NONE,
1430 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1431     {"highlight",   "hl",   P_STRING|P_VI_DEF|P_RCLR|P_ONECOMMA|P_NODUP,
1432 			    (char_u *)&p_hl, PV_NONE,
1433 			    {(char_u *)HIGHLIGHT_INIT, (char_u *)0L}
1434 			    SCRIPTID_INIT},
1435     {"history",	    "hi",   P_NUM|P_VIM,
1436 			    (char_u *)&p_hi, PV_NONE,
1437 			    {(char_u *)0L, (char_u *)50L} SCRIPTID_INIT},
1438     {"hkmap",	    "hk",   P_BOOL|P_VI_DEF|P_VIM,
1439 #ifdef FEAT_RIGHTLEFT
1440 			    (char_u *)&p_hkmap, PV_NONE,
1441 #else
1442 			    (char_u *)NULL, PV_NONE,
1443 #endif
1444 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1445     {"hkmapp",	    "hkp",  P_BOOL|P_VI_DEF|P_VIM,
1446 #ifdef FEAT_RIGHTLEFT
1447 			    (char_u *)&p_hkmapp, PV_NONE,
1448 #else
1449 			    (char_u *)NULL, PV_NONE,
1450 #endif
1451 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1452     {"hlsearch",    "hls",  P_BOOL|P_VI_DEF|P_VIM|P_RALL,
1453 			    (char_u *)&p_hls, PV_NONE,
1454 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1455     {"icon",	    NULL,   P_BOOL|P_VI_DEF,
1456 #ifdef FEAT_TITLE
1457 			    (char_u *)&p_icon, PV_NONE,
1458 #else
1459 			    (char_u *)NULL, PV_NONE,
1460 #endif
1461 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1462     {"iconstring",  NULL,   P_STRING|P_VI_DEF,
1463 #ifdef FEAT_TITLE
1464 			    (char_u *)&p_iconstring, PV_NONE,
1465 #else
1466 			    (char_u *)NULL, PV_NONE,
1467 #endif
1468 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1469     {"ignorecase",  "ic",   P_BOOL|P_VI_DEF,
1470 			    (char_u *)&p_ic, PV_NONE,
1471 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1472     {"imactivatefunc","imaf",P_STRING|P_VI_DEF|P_SECURE,
1473 # if defined(FEAT_EVAL) && defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
1474 			    (char_u *)&p_imaf, PV_NONE,
1475 			    {(char_u *)"", (char_u *)NULL}
1476 # else
1477 			    (char_u *)NULL, PV_NONE,
1478 			    {(char_u *)NULL, (char_u *)0L}
1479 # endif
1480 			    SCRIPTID_INIT},
1481     {"imactivatekey","imak",P_STRING|P_VI_DEF,
1482 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
1483 			    (char_u *)&p_imak, PV_NONE,
1484 #else
1485 			    (char_u *)NULL, PV_NONE,
1486 #endif
1487 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1488     {"imcmdline",   "imc",  P_BOOL|P_VI_DEF,
1489 #ifdef USE_IM_CONTROL
1490 			    (char_u *)&p_imcmdline, PV_NONE,
1491 #else
1492 			    (char_u *)NULL, PV_NONE,
1493 #endif
1494 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1495     {"imdisable",   "imd",  P_BOOL|P_VI_DEF,
1496 #ifdef USE_IM_CONTROL
1497 			    (char_u *)&p_imdisable, PV_NONE,
1498 #else
1499 			    (char_u *)NULL, PV_NONE,
1500 #endif
1501 #ifdef __sgi
1502 			    {(char_u *)TRUE, (char_u *)0L}
1503 #else
1504 			    {(char_u *)FALSE, (char_u *)0L}
1505 #endif
1506 			    SCRIPTID_INIT},
1507     {"iminsert",    "imi",  P_NUM|P_VI_DEF,
1508 			    (char_u *)&p_iminsert, PV_IMI,
1509 #ifdef B_IMODE_IM
1510 			    {(char_u *)B_IMODE_IM, (char_u *)0L}
1511 #else
1512 			    {(char_u *)B_IMODE_NONE, (char_u *)0L}
1513 #endif
1514 			    SCRIPTID_INIT},
1515     {"imsearch",    "ims",  P_NUM|P_VI_DEF,
1516 			    (char_u *)&p_imsearch, PV_IMS,
1517 #ifdef B_IMODE_IM
1518 			    {(char_u *)B_IMODE_IM, (char_u *)0L}
1519 #else
1520 			    {(char_u *)B_IMODE_NONE, (char_u *)0L}
1521 #endif
1522 			    SCRIPTID_INIT},
1523     {"imstatusfunc","imsf",P_STRING|P_VI_DEF|P_SECURE,
1524 # if defined(FEAT_EVAL) && defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
1525 			    (char_u *)&p_imsf, PV_NONE,
1526 			    {(char_u *)"", (char_u *)NULL}
1527 # else
1528 			    (char_u *)NULL, PV_NONE,
1529 			    {(char_u *)NULL, (char_u *)0L}
1530 # endif
1531 			    SCRIPTID_INIT},
1532     {"include",	    "inc",  P_STRING|P_ALLOCED|P_VI_DEF,
1533 #ifdef FEAT_FIND_ID
1534 			    (char_u *)&p_inc, PV_INC,
1535 			    {(char_u *)"^\\s*#\\s*include", (char_u *)0L}
1536 #else
1537 			    (char_u *)NULL, PV_NONE,
1538 			    {(char_u *)0L, (char_u *)0L}
1539 #endif
1540 			    SCRIPTID_INIT},
1541     {"includeexpr", "inex", P_STRING|P_ALLOCED|P_VI_DEF,
1542 #if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
1543 			    (char_u *)&p_inex, PV_INEX,
1544 			    {(char_u *)"", (char_u *)0L}
1545 #else
1546 			    (char_u *)NULL, PV_NONE,
1547 			    {(char_u *)0L, (char_u *)0L}
1548 #endif
1549 			    SCRIPTID_INIT},
1550     {"incsearch",   "is",   P_BOOL|P_VI_DEF|P_VIM,
1551 			    (char_u *)&p_is, PV_NONE,
1552 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1553     {"indentexpr", "inde",  P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
1554 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
1555 			    (char_u *)&p_inde, PV_INDE,
1556 			    {(char_u *)"", (char_u *)0L}
1557 #else
1558 			    (char_u *)NULL, PV_NONE,
1559 			    {(char_u *)0L, (char_u *)0L}
1560 #endif
1561 			    SCRIPTID_INIT},
1562     {"indentkeys", "indk",  P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
1563 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
1564 			    (char_u *)&p_indk, PV_INDK,
1565 			    {(char_u *)"0{,0},:,0#,!^F,o,O,e", (char_u *)0L}
1566 #else
1567 			    (char_u *)NULL, PV_NONE,
1568 			    {(char_u *)0L, (char_u *)0L}
1569 #endif
1570 			    SCRIPTID_INIT},
1571     {"infercase",   "inf",  P_BOOL|P_VI_DEF,
1572 			    (char_u *)&p_inf, PV_INF,
1573 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1574     {"insertmode",  "im",   P_BOOL|P_VI_DEF|P_VIM,
1575 			    (char_u *)&p_im, PV_NONE,
1576 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1577     {"isfname",	    "isf",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1578 			    (char_u *)&p_isf, PV_NONE,
1579 			    {
1580 #ifdef BACKSLASH_IN_FILENAME
1581 				/* Excluded are: & and ^ are special in cmd.exe
1582 				 * ( and ) are used in text separating fnames */
1583 			    (char_u *)"@,48-57,/,\\,.,-,_,+,,,#,$,%,{,},[,],:,@-@,!,~,=",
1584 #else
1585 # ifdef AMIGA
1586 			    (char_u *)"@,48-57,/,.,-,_,+,,,$,:",
1587 # else
1588 #  ifdef VMS
1589 			    (char_u *)"@,48-57,/,.,-,_,+,,,#,$,%,<,>,[,],:,;,~",
1590 #  else /* UNIX et al. */
1591 #   ifdef EBCDIC
1592 			    (char_u *)"@,240-249,/,.,-,_,+,,,#,$,%,~,=",
1593 #   else
1594 			    (char_u *)"@,48-57,/,.,-,_,+,,,#,$,%,~,=",
1595 #   endif
1596 #  endif
1597 # endif
1598 #endif
1599 				(char_u *)0L} SCRIPTID_INIT},
1600     {"isident",	    "isi",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1601 			    (char_u *)&p_isi, PV_NONE,
1602 			    {
1603 #if defined(MSDOS) || defined(MSWIN)
1604 			    (char_u *)"@,48-57,_,128-167,224-235",
1605 #else
1606 # ifdef EBCDIC
1607 			    /* TODO: EBCDIC Check this! @ == isalpha()*/
1608 			    (char_u *)"@,240-249,_,66-73,81-89,98-105,"
1609 				    "112-120,128,140-142,156,158,172,"
1610 				    "174,186,191,203-207,219-225,235-239,"
1611 				    "251-254",
1612 # else
1613 			    (char_u *)"@,48-57,_,192-255",
1614 # endif
1615 #endif
1616 				(char_u *)0L} SCRIPTID_INIT},
1617     {"iskeyword",   "isk",  P_STRING|P_ALLOCED|P_VIM|P_COMMA|P_NODUP,
1618 			    (char_u *)&p_isk, PV_ISK,
1619 			    {
1620 #ifdef EBCDIC
1621 			     (char_u *)"@,240-249,_",
1622 			     /* TODO: EBCDIC Check this! @ == isalpha()*/
1623 			     (char_u *)"@,240-249,_,66-73,81-89,98-105,"
1624 				    "112-120,128,140-142,156,158,172,"
1625 				    "174,186,191,203-207,219-225,235-239,"
1626 				    "251-254",
1627 #else
1628 				(char_u *)"@,48-57,_",
1629 # if defined(MSDOS) || defined(MSWIN)
1630 				(char_u *)"@,48-57,_,128-167,224-235"
1631 # else
1632 				ISK_LATIN1
1633 # endif
1634 #endif
1635 			    } SCRIPTID_INIT},
1636     {"isprint",	    "isp",  P_STRING|P_VI_DEF|P_RALL|P_COMMA|P_NODUP,
1637 			    (char_u *)&p_isp, PV_NONE,
1638 			    {
1639 #if defined(MSDOS) || defined(MSWIN) \
1640 		|| (defined(MACOS) && !defined(MACOS_X)) \
1641 		|| defined(VMS)
1642 			    (char_u *)"@,~-255",
1643 #else
1644 # ifdef EBCDIC
1645 			    /* all chars above 63 are printable */
1646 			    (char_u *)"63-255",
1647 # else
1648 			    ISP_LATIN1,
1649 # endif
1650 #endif
1651 				(char_u *)0L} SCRIPTID_INIT},
1652     {"joinspaces",  "js",   P_BOOL|P_VI_DEF|P_VIM,
1653 			    (char_u *)&p_js, PV_NONE,
1654 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1655     {"key",	    NULL,   P_STRING|P_ALLOCED|P_VI_DEF|P_NO_MKRC,
1656 #ifdef FEAT_CRYPT
1657 			    (char_u *)&p_key, PV_KEY,
1658 			    {(char_u *)"", (char_u *)0L}
1659 #else
1660 			    (char_u *)NULL, PV_NONE,
1661 			    {(char_u *)0L, (char_u *)0L}
1662 #endif
1663 			    SCRIPTID_INIT},
1664     {"keymap",	    "kmp",  P_STRING|P_ALLOCED|P_VI_DEF|P_RBUF|P_RSTAT|P_NFNAME|P_PRI_MKRC,
1665 #ifdef FEAT_KEYMAP
1666 			    (char_u *)&p_keymap, PV_KMAP,
1667 			    {(char_u *)"", (char_u *)0L}
1668 #else
1669 			    (char_u *)NULL, PV_NONE,
1670 			    {(char_u *)"", (char_u *)0L}
1671 #endif
1672 			    SCRIPTID_INIT},
1673     {"keymodel",    "km",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1674 			    (char_u *)&p_km, PV_NONE,
1675 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1676     {"keywordprg",  "kp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1677 			    (char_u *)&p_kp, PV_KP,
1678 			    {
1679 #if defined(MSDOS) || defined(MSWIN)
1680 			    (char_u *)":help",
1681 #else
1682 #ifdef VMS
1683 			    (char_u *)"help",
1684 #else
1685 # ifdef USEMAN_S
1686 			    (char_u *)"man -s",
1687 # else
1688 			    (char_u *)"man",
1689 # endif
1690 #endif
1691 #endif
1692 				(char_u *)0L} SCRIPTID_INIT},
1693     {"langmap",     "lmap", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP|P_SECURE,
1694 #ifdef FEAT_LANGMAP
1695 			    (char_u *)&p_langmap, PV_NONE,
1696 			    {(char_u *)"",	/* unmatched } */
1697 #else
1698 			    (char_u *)NULL, PV_NONE,
1699 			    {(char_u *)NULL,
1700 #endif
1701 				(char_u *)0L} SCRIPTID_INIT},
1702     {"langmenu",    "lm",   P_STRING|P_VI_DEF|P_NFNAME,
1703 #if defined(FEAT_MENU) && defined(FEAT_MULTI_LANG)
1704 			    (char_u *)&p_lm, PV_NONE,
1705 #else
1706 			    (char_u *)NULL, PV_NONE,
1707 #endif
1708 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1709     {"langnoremap",  "lnr",   P_BOOL|P_VI_DEF,
1710 #ifdef FEAT_LANGMAP
1711 			    (char_u *)&p_lnr, PV_NONE,
1712 #else
1713 			    (char_u *)NULL, PV_NONE,
1714 #endif
1715 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1716     {"laststatus",  "ls",   P_NUM|P_VI_DEF|P_RALL,
1717 #ifdef FEAT_WINDOWS
1718 			    (char_u *)&p_ls, PV_NONE,
1719 #else
1720 			    (char_u *)NULL, PV_NONE,
1721 #endif
1722 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
1723     {"lazyredraw",  "lz",   P_BOOL|P_VI_DEF,
1724 			    (char_u *)&p_lz, PV_NONE,
1725 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1726     {"linebreak",   "lbr",  P_BOOL|P_VI_DEF|P_RWIN,
1727 #ifdef FEAT_LINEBREAK
1728 			    (char_u *)VAR_WIN, PV_LBR,
1729 #else
1730 			    (char_u *)NULL, PV_NONE,
1731 #endif
1732 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1733     {"lines",	    NULL,   P_NUM|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RCLR,
1734 			    (char_u *)&Rows, PV_NONE,
1735 			    {
1736 #if defined(MSDOS) || defined(WIN3264)
1737 			    (char_u *)25L,
1738 #else
1739 			    (char_u *)24L,
1740 #endif
1741 					    (char_u *)0L} SCRIPTID_INIT},
1742     {"linespace",   "lsp",  P_NUM|P_VI_DEF|P_RCLR,
1743 #ifdef FEAT_GUI
1744 			    (char_u *)&p_linespace, PV_NONE,
1745 #else
1746 			    (char_u *)NULL, PV_NONE,
1747 #endif
1748 #ifdef FEAT_GUI_W32
1749 			    {(char_u *)1L, (char_u *)0L}
1750 #else
1751 			    {(char_u *)0L, (char_u *)0L}
1752 #endif
1753 			    SCRIPTID_INIT},
1754     {"lisp",	    NULL,   P_BOOL|P_VI_DEF,
1755 #ifdef FEAT_LISP
1756 			    (char_u *)&p_lisp, PV_LISP,
1757 #else
1758 			    (char_u *)NULL, PV_NONE,
1759 #endif
1760 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1761     {"lispwords",   "lw",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1762 #ifdef FEAT_LISP
1763 			    (char_u *)&p_lispwords, PV_LW,
1764 			    {(char_u *)LISPWORD_VALUE, (char_u *)0L}
1765 #else
1766 			    (char_u *)NULL, PV_NONE,
1767 			    {(char_u *)"", (char_u *)0L}
1768 #endif
1769 			    SCRIPTID_INIT},
1770     {"list",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
1771 			    (char_u *)VAR_WIN, PV_LIST,
1772 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1773     {"listchars",   "lcs",  P_STRING|P_VI_DEF|P_RALL|P_ONECOMMA|P_NODUP,
1774 			    (char_u *)&p_lcs, PV_NONE,
1775 			    {(char_u *)"eol:$", (char_u *)0L} SCRIPTID_INIT},
1776     {"loadplugins", "lpl",  P_BOOL|P_VI_DEF,
1777 			    (char_u *)&p_lpl, PV_NONE,
1778 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1779 #if defined(DYNAMIC_LUA) && !defined(WIN3264)
1780     {"luadll",      NULL,   P_STRING|P_VI_DEF|P_SECURE,
1781 			    (char_u *)&p_luadll, PV_NONE,
1782 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1783 #endif
1784 #ifdef FEAT_GUI_MAC
1785     {"macatsui",    NULL,   P_BOOL|P_VI_DEF|P_RCLR,
1786 			    (char_u *)&p_macatsui, PV_NONE,
1787 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1788 #endif
1789     {"magic",	    NULL,   P_BOOL|P_VI_DEF,
1790 			    (char_u *)&p_magic, PV_NONE,
1791 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1792     {"makeef",	    "mef",  P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1793 #ifdef FEAT_QUICKFIX
1794 			    (char_u *)&p_mef, PV_NONE,
1795 			    {(char_u *)"", (char_u *)0L}
1796 #else
1797 			    (char_u *)NULL, PV_NONE,
1798 			    {(char_u *)NULL, (char_u *)0L}
1799 #endif
1800 			    SCRIPTID_INIT},
1801     {"makeprg",	    "mp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1802 #ifdef FEAT_QUICKFIX
1803 			    (char_u *)&p_mp, PV_MP,
1804 # ifdef VMS
1805 			    {(char_u *)"MMS", (char_u *)0L}
1806 # else
1807 			    {(char_u *)"make", (char_u *)0L}
1808 # endif
1809 #else
1810 			    (char_u *)NULL, PV_NONE,
1811 			    {(char_u *)NULL, (char_u *)0L}
1812 #endif
1813 			    SCRIPTID_INIT},
1814     {"matchpairs",  "mps",  P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
1815 			    (char_u *)&p_mps, PV_MPS,
1816 			    {(char_u *)"(:),{:},[:]", (char_u *)0L}
1817 			    SCRIPTID_INIT},
1818     {"matchtime",   "mat",  P_NUM|P_VI_DEF,
1819 			    (char_u *)&p_mat, PV_NONE,
1820 			    {(char_u *)5L, (char_u *)0L} SCRIPTID_INIT},
1821     {"maxcombine",  "mco",  P_NUM|P_VI_DEF|P_CURSWANT,
1822 #ifdef FEAT_MBYTE
1823 			    (char_u *)&p_mco, PV_NONE,
1824 #else
1825 			    (char_u *)NULL, PV_NONE,
1826 #endif
1827 			    {(char_u *)2, (char_u *)0L} SCRIPTID_INIT},
1828     {"maxfuncdepth", "mfd", P_NUM|P_VI_DEF,
1829 #ifdef FEAT_EVAL
1830 			    (char_u *)&p_mfd, PV_NONE,
1831 #else
1832 			    (char_u *)NULL, PV_NONE,
1833 #endif
1834 			    {(char_u *)100L, (char_u *)0L} SCRIPTID_INIT},
1835     {"maxmapdepth", "mmd",  P_NUM|P_VI_DEF,
1836 			    (char_u *)&p_mmd, PV_NONE,
1837 			    {(char_u *)1000L, (char_u *)0L} SCRIPTID_INIT},
1838     {"maxmem",	    "mm",   P_NUM|P_VI_DEF,
1839 			    (char_u *)&p_mm, PV_NONE,
1840 			    {(char_u *)DFLT_MAXMEM, (char_u *)0L}
1841 			    SCRIPTID_INIT},
1842     {"maxmempattern","mmp", P_NUM|P_VI_DEF,
1843 			    (char_u *)&p_mmp, PV_NONE,
1844 			    {(char_u *)1000L, (char_u *)0L} SCRIPTID_INIT},
1845     {"maxmemtot",   "mmt",  P_NUM|P_VI_DEF,
1846 			    (char_u *)&p_mmt, PV_NONE,
1847 			    {(char_u *)DFLT_MAXMEMTOT, (char_u *)0L}
1848 			    SCRIPTID_INIT},
1849     {"menuitems",   "mis",  P_NUM|P_VI_DEF,
1850 #ifdef FEAT_MENU
1851 			    (char_u *)&p_mis, PV_NONE,
1852 #else
1853 			    (char_u *)NULL, PV_NONE,
1854 #endif
1855 			    {(char_u *)25L, (char_u *)0L} SCRIPTID_INIT},
1856     {"mesg",	    NULL,   P_BOOL|P_VI_DEF,
1857 			    (char_u *)NULL, PV_NONE,
1858 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1859     {"mkspellmem",  "msm",  P_STRING|P_VI_DEF|P_EXPAND|P_SECURE,
1860 #ifdef FEAT_SPELL
1861 			    (char_u *)&p_msm, PV_NONE,
1862 			    {(char_u *)"460000,2000,500", (char_u *)0L}
1863 #else
1864 			    (char_u *)NULL, PV_NONE,
1865 			    {(char_u *)0L, (char_u *)0L}
1866 #endif
1867 			    SCRIPTID_INIT},
1868     {"modeline",    "ml",   P_BOOL|P_VIM,
1869 			    (char_u *)&p_ml, PV_ML,
1870 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
1871     {"modelines",   "mls",  P_NUM|P_VI_DEF,
1872 			    (char_u *)&p_mls, PV_NONE,
1873 			    {(char_u *)5L, (char_u *)0L} SCRIPTID_INIT},
1874     {"modifiable",  "ma",   P_BOOL|P_VI_DEF|P_NOGLOB,
1875 			    (char_u *)&p_ma, PV_MA,
1876 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1877     {"modified",    "mod",  P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
1878 			    (char_u *)&p_mod, PV_MOD,
1879 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1880     {"more",	    NULL,   P_BOOL|P_VIM,
1881 			    (char_u *)&p_more, PV_NONE,
1882 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
1883     {"mouse",	    NULL,   P_STRING|P_VI_DEF|P_FLAGLIST,
1884 			    (char_u *)&p_mouse, PV_NONE,
1885 			    {
1886 #if defined(MSDOS) || defined(WIN3264)
1887 				(char_u *)"a",
1888 #else
1889 				(char_u *)"",
1890 #endif
1891 				(char_u *)0L} SCRIPTID_INIT},
1892     {"mousefocus",   "mousef", P_BOOL|P_VI_DEF,
1893 #ifdef FEAT_GUI
1894 			    (char_u *)&p_mousef, PV_NONE,
1895 #else
1896 			    (char_u *)NULL, PV_NONE,
1897 #endif
1898 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1899     {"mousehide",   "mh",   P_BOOL|P_VI_DEF,
1900 #ifdef FEAT_GUI
1901 			    (char_u *)&p_mh, PV_NONE,
1902 #else
1903 			    (char_u *)NULL, PV_NONE,
1904 #endif
1905 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1906     {"mousemodel",  "mousem", P_STRING|P_VI_DEF,
1907 			    (char_u *)&p_mousem, PV_NONE,
1908 			    {
1909 #if defined(MSDOS) || defined(MSWIN)
1910 				(char_u *)"popup",
1911 #else
1912 # if defined(MACOS)
1913 				(char_u *)"popup_setpos",
1914 # else
1915 				(char_u *)"extend",
1916 # endif
1917 #endif
1918 				(char_u *)0L} SCRIPTID_INIT},
1919     {"mouseshape",  "mouses",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
1920 #ifdef FEAT_MOUSESHAPE
1921 			    (char_u *)&p_mouseshape, PV_NONE,
1922 			    {(char_u *)"i-r:beam,s:updown,sd:udsizing,vs:leftright,vd:lrsizing,m:no,ml:up-arrow,v:rightup-arrow", (char_u *)0L}
1923 #else
1924 			    (char_u *)NULL, PV_NONE,
1925 			    {(char_u *)NULL, (char_u *)0L}
1926 #endif
1927 			    SCRIPTID_INIT},
1928     {"mousetime",   "mouset",	P_NUM|P_VI_DEF,
1929 			    (char_u *)&p_mouset, PV_NONE,
1930 			    {(char_u *)500L, (char_u *)0L} SCRIPTID_INIT},
1931     {"mzquantum",  "mzq",   P_NUM,
1932 #ifdef FEAT_MZSCHEME
1933 			    (char_u *)&p_mzq, PV_NONE,
1934 #else
1935 			    (char_u *)NULL, PV_NONE,
1936 #endif
1937 			    {(char_u *)100L, (char_u *)100L} SCRIPTID_INIT},
1938     {"novice",	    NULL,   P_BOOL|P_VI_DEF,
1939 			    (char_u *)NULL, PV_NONE,
1940 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1941     {"nrformats",   "nf",   P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA|P_NODUP,
1942 			    (char_u *)&p_nf, PV_NF,
1943 			    {(char_u *)"octal,hex", (char_u *)0L}
1944 			    SCRIPTID_INIT},
1945     {"number",	    "nu",   P_BOOL|P_VI_DEF|P_RWIN,
1946 			    (char_u *)VAR_WIN, PV_NU,
1947 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1948     {"numberwidth", "nuw",  P_NUM|P_RWIN|P_VIM,
1949 #ifdef FEAT_LINEBREAK
1950 			    (char_u *)VAR_WIN, PV_NUW,
1951 #else
1952 			    (char_u *)NULL, PV_NONE,
1953 #endif
1954 			    {(char_u *)8L, (char_u *)4L} SCRIPTID_INIT},
1955     {"omnifunc",    "ofu",  P_STRING|P_ALLOCED|P_VI_DEF|P_SECURE,
1956 #ifdef FEAT_COMPL_FUNC
1957 			    (char_u *)&p_ofu, PV_OFU,
1958 			    {(char_u *)"", (char_u *)0L}
1959 #else
1960 			    (char_u *)NULL, PV_NONE,
1961 			    {(char_u *)0L, (char_u *)0L}
1962 #endif
1963 			    SCRIPTID_INIT},
1964     {"open",	    NULL,   P_BOOL|P_VI_DEF,
1965 			    (char_u *)NULL, PV_NONE,
1966 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1967     {"opendevice",  "odev", P_BOOL|P_VI_DEF,
1968 #if defined(MSDOS) || defined(MSWIN)
1969 			    (char_u *)&p_odev, PV_NONE,
1970 #else
1971 			    (char_u *)NULL, PV_NONE,
1972 #endif
1973 			    {(char_u *)FALSE, (char_u *)FALSE}
1974 			    SCRIPTID_INIT},
1975     {"operatorfunc", "opfunc", P_STRING|P_VI_DEF|P_SECURE,
1976 			    (char_u *)&p_opfunc, PV_NONE,
1977 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1978     {"optimize",    "opt",  P_BOOL|P_VI_DEF,
1979 			    (char_u *)NULL, PV_NONE,
1980 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1981     {"osfiletype",  "oft",  P_STRING|P_ALLOCED|P_VI_DEF,
1982 			    (char_u *)NULL, PV_NONE,
1983 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
1984     {"paragraphs",  "para", P_STRING|P_VI_DEF,
1985 			    (char_u *)&p_para, PV_NONE,
1986 			    {(char_u *)"IPLPPPQPP TPHPLIPpLpItpplpipbp",
1987 				(char_u *)0L} SCRIPTID_INIT},
1988     {"paste",	    NULL,   P_BOOL|P_VI_DEF|P_PRI_MKRC,
1989 			    (char_u *)&p_paste, PV_NONE,
1990 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1991     {"pastetoggle", "pt",   P_STRING|P_VI_DEF,
1992 			    (char_u *)&p_pt, PV_NONE,
1993 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1994     {"patchexpr",   "pex",  P_STRING|P_VI_DEF|P_SECURE,
1995 #if defined(FEAT_DIFF) && defined(FEAT_EVAL)
1996 			    (char_u *)&p_pex, PV_NONE,
1997 			    {(char_u *)"", (char_u *)0L}
1998 #else
1999 			    (char_u *)NULL, PV_NONE,
2000 			    {(char_u *)0L, (char_u *)0L}
2001 #endif
2002 			    SCRIPTID_INIT},
2003     {"patchmode",   "pm",   P_STRING|P_VI_DEF|P_NFNAME,
2004 			    (char_u *)&p_pm, PV_NONE,
2005 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2006     {"path",	    "pa",   P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
2007 			    (char_u *)&p_path, PV_PATH,
2008 			    {
2009 #if defined AMIGA || defined MSDOS || defined MSWIN
2010 			    (char_u *)".,,",
2011 #else
2012 # if defined(__EMX__)
2013 			    (char_u *)".,/emx/include,,",
2014 # else /* Unix, probably */
2015 			    (char_u *)".,/usr/include,,",
2016 # endif
2017 #endif
2018 				(char_u *)0L} SCRIPTID_INIT},
2019 #if defined(DYNAMIC_PERL) && !defined(WIN3264)
2020     {"perldll",     NULL,   P_STRING|P_VI_DEF|P_SECURE,
2021 			    (char_u *)&p_perldll, PV_NONE,
2022 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2023 #endif
2024     {"preserveindent", "pi", P_BOOL|P_VI_DEF|P_VIM,
2025 			    (char_u *)&p_pi, PV_PI,
2026 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2027     {"previewheight", "pvh", P_NUM|P_VI_DEF,
2028 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2029 			    (char_u *)&p_pvh, PV_NONE,
2030 #else
2031 			    (char_u *)NULL, PV_NONE,
2032 #endif
2033 			    {(char_u *)12L, (char_u *)0L} SCRIPTID_INIT},
2034     {"previewwindow", "pvw", P_BOOL|P_VI_DEF|P_RSTAT|P_NOGLOB,
2035 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
2036 			    (char_u *)VAR_WIN, PV_PVW,
2037 #else
2038 			    (char_u *)NULL, PV_NONE,
2039 #endif
2040 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2041     {"printdevice", "pdev", P_STRING|P_VI_DEF|P_SECURE,
2042 #ifdef FEAT_PRINTER
2043 			    (char_u *)&p_pdev, PV_NONE,
2044 			    {(char_u *)"", (char_u *)0L}
2045 #else
2046 			    (char_u *)NULL, PV_NONE,
2047 			    {(char_u *)NULL, (char_u *)0L}
2048 #endif
2049 			    SCRIPTID_INIT},
2050     {"printencoding", "penc", P_STRING|P_VI_DEF,
2051 #ifdef FEAT_POSTSCRIPT
2052 			    (char_u *)&p_penc, PV_NONE,
2053 			    {(char_u *)"", (char_u *)0L}
2054 #else
2055 			    (char_u *)NULL, PV_NONE,
2056 			    {(char_u *)NULL, (char_u *)0L}
2057 #endif
2058 			    SCRIPTID_INIT},
2059     {"printexpr", "pexpr",  P_STRING|P_VI_DEF,
2060 #ifdef FEAT_POSTSCRIPT
2061 			    (char_u *)&p_pexpr, PV_NONE,
2062 			    {(char_u *)"", (char_u *)0L}
2063 #else
2064 			    (char_u *)NULL, PV_NONE,
2065 			    {(char_u *)NULL, (char_u *)0L}
2066 #endif
2067 			    SCRIPTID_INIT},
2068     {"printfont", "pfn",    P_STRING|P_VI_DEF,
2069 #ifdef FEAT_PRINTER
2070 			    (char_u *)&p_pfn, PV_NONE,
2071 			    {
2072 # ifdef MSWIN
2073 				(char_u *)"Courier_New:h10",
2074 # else
2075 				(char_u *)"courier",
2076 # endif
2077 				(char_u *)0L}
2078 #else
2079 			    (char_u *)NULL, PV_NONE,
2080 			    {(char_u *)NULL, (char_u *)0L}
2081 #endif
2082 			    SCRIPTID_INIT},
2083     {"printheader", "pheader",  P_STRING|P_VI_DEF|P_GETTEXT,
2084 #ifdef FEAT_PRINTER
2085 			    (char_u *)&p_header, PV_NONE,
2086 			    {(char_u *)N_("%<%f%h%m%=Page %N"), (char_u *)0L}
2087 #else
2088 			    (char_u *)NULL, PV_NONE,
2089 			    {(char_u *)NULL, (char_u *)0L}
2090 #endif
2091 			    SCRIPTID_INIT},
2092    {"printmbcharset", "pmbcs",  P_STRING|P_VI_DEF,
2093 #if defined(FEAT_POSTSCRIPT) && defined(FEAT_MBYTE)
2094 			    (char_u *)&p_pmcs, PV_NONE,
2095 			    {(char_u *)"", (char_u *)0L}
2096 #else
2097 			    (char_u *)NULL, PV_NONE,
2098 			    {(char_u *)NULL, (char_u *)0L}
2099 #endif
2100 			    SCRIPTID_INIT},
2101     {"printmbfont", "pmbfn",  P_STRING|P_VI_DEF,
2102 #if defined(FEAT_POSTSCRIPT) && defined(FEAT_MBYTE)
2103 			    (char_u *)&p_pmfn, PV_NONE,
2104 			    {(char_u *)"", (char_u *)0L}
2105 #else
2106 			    (char_u *)NULL, PV_NONE,
2107 			    {(char_u *)NULL, (char_u *)0L}
2108 #endif
2109 			    SCRIPTID_INIT},
2110     {"printoptions", "popt", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2111 #ifdef FEAT_PRINTER
2112 			    (char_u *)&p_popt, PV_NONE,
2113 			    {(char_u *)"", (char_u *)0L}
2114 #else
2115 			    (char_u *)NULL, PV_NONE,
2116 			    {(char_u *)NULL, (char_u *)0L}
2117 #endif
2118 			    SCRIPTID_INIT},
2119     {"prompt",	    NULL,   P_BOOL|P_VI_DEF,
2120 			    (char_u *)&p_prompt, PV_NONE,
2121 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2122     {"pumheight",   "ph",   P_NUM|P_VI_DEF,
2123 #ifdef FEAT_INS_EXPAND
2124 			    (char_u *)&p_ph, PV_NONE,
2125 #else
2126 			    (char_u *)NULL, PV_NONE,
2127 #endif
2128 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2129 #if defined(DYNAMIC_PYTHON3) && !defined(WIN3264)
2130     {"pythonthreedll",  NULL,   P_STRING|P_VI_DEF|P_SECURE,
2131 			    (char_u *)&p_py3dll, PV_NONE,
2132 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2133 #endif
2134 #if defined(DYNAMIC_PYTHON) && !defined(WIN3264)
2135     {"pythondll",   NULL,   P_STRING|P_VI_DEF|P_SECURE,
2136 			    (char_u *)&p_pydll, PV_NONE,
2137 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2138 #endif
2139     {"quoteescape", "qe",   P_STRING|P_ALLOCED|P_VI_DEF,
2140 #ifdef FEAT_TEXTOBJ
2141 			    (char_u *)&p_qe, PV_QE,
2142 			    {(char_u *)"\\", (char_u *)0L}
2143 #else
2144 			    (char_u *)NULL, PV_NONE,
2145 			    {(char_u *)NULL, (char_u *)0L}
2146 #endif
2147 			    SCRIPTID_INIT},
2148     {"readonly",    "ro",   P_BOOL|P_VI_DEF|P_RSTAT|P_NOGLOB,
2149 			    (char_u *)&p_ro, PV_RO,
2150 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2151     {"redraw",	    NULL,   P_BOOL|P_VI_DEF,
2152 			    (char_u *)NULL, PV_NONE,
2153 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2154     {"redrawtime",  "rdt",  P_NUM|P_VI_DEF,
2155 #ifdef FEAT_RELTIME
2156 			    (char_u *)&p_rdt, PV_NONE,
2157 #else
2158 			    (char_u *)NULL, PV_NONE,
2159 #endif
2160 			    {(char_u *)2000L, (char_u *)0L} SCRIPTID_INIT},
2161     {"regexpengine", "re",  P_NUM|P_VI_DEF,
2162 			    (char_u *)&p_re, PV_NONE,
2163 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2164     {"relativenumber", "rnu", P_BOOL|P_VI_DEF|P_RWIN,
2165 			    (char_u *)VAR_WIN, PV_RNU,
2166 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2167     {"remap",	    NULL,   P_BOOL|P_VI_DEF,
2168 			    (char_u *)&p_remap, PV_NONE,
2169 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2170     {"renderoptions", "rop", P_STRING|P_ONECOMMA|P_RCLR|P_VI_DEF,
2171 #ifdef FEAT_RENDER_OPTIONS
2172 			    (char_u *)&p_rop, PV_NONE,
2173 			    {(char_u *)"", (char_u *)0L}
2174 #else
2175 			    (char_u *)NULL, PV_NONE,
2176 			    {(char_u *)NULL, (char_u *)0L}
2177 #endif
2178 			    SCRIPTID_INIT},
2179     {"report",	    NULL,   P_NUM|P_VI_DEF,
2180 			    (char_u *)&p_report, PV_NONE,
2181 			    {(char_u *)2L, (char_u *)0L} SCRIPTID_INIT},
2182     {"restorescreen", "rs", P_BOOL|P_VI_DEF,
2183 #ifdef WIN3264
2184 			    (char_u *)&p_rs, PV_NONE,
2185 #else
2186 			    (char_u *)NULL, PV_NONE,
2187 #endif
2188 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2189     {"revins",	    "ri",   P_BOOL|P_VI_DEF|P_VIM,
2190 #ifdef FEAT_RIGHTLEFT
2191 			    (char_u *)&p_ri, PV_NONE,
2192 #else
2193 			    (char_u *)NULL, PV_NONE,
2194 #endif
2195 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2196     {"rightleft",   "rl",   P_BOOL|P_VI_DEF|P_RWIN,
2197 #ifdef FEAT_RIGHTLEFT
2198 			    (char_u *)VAR_WIN, PV_RL,
2199 #else
2200 			    (char_u *)NULL, PV_NONE,
2201 #endif
2202 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2203     {"rightleftcmd", "rlc", P_STRING|P_ALLOCED|P_VI_DEF|P_RWIN,
2204 #ifdef FEAT_RIGHTLEFT
2205 			    (char_u *)VAR_WIN, PV_RLC,
2206 			    {(char_u *)"search", (char_u *)NULL}
2207 #else
2208 			    (char_u *)NULL, PV_NONE,
2209 			    {(char_u *)NULL, (char_u *)0L}
2210 #endif
2211 			    SCRIPTID_INIT},
2212 #if defined(DYNAMIC_RUBY) && !defined(WIN3264)
2213     {"rubydll",     NULL,   P_STRING|P_VI_DEF|P_SECURE,
2214 			    (char_u *)&p_rubydll, PV_NONE,
2215 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2216 #endif
2217     {"ruler",	    "ru",   P_BOOL|P_VI_DEF|P_VIM|P_RSTAT,
2218 #ifdef FEAT_CMDL_INFO
2219 			    (char_u *)&p_ru, PV_NONE,
2220 #else
2221 			    (char_u *)NULL, PV_NONE,
2222 #endif
2223 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2224     {"rulerformat", "ruf",  P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT,
2225 #ifdef FEAT_STL_OPT
2226 			    (char_u *)&p_ruf, PV_NONE,
2227 #else
2228 			    (char_u *)NULL, PV_NONE,
2229 #endif
2230 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2231     {"runtimepath", "rtp",  P_STRING|P_VI_DEF|P_EXPAND|P_ONECOMMA|P_NODUP
2232 								    |P_SECURE,
2233 			    (char_u *)&p_rtp, PV_NONE,
2234 			    {(char_u *)DFLT_RUNTIMEPATH, (char_u *)0L}
2235 			    SCRIPTID_INIT},
2236     {"scroll",	    "scr",  P_NUM|P_NO_MKRC|P_VI_DEF,
2237 			    (char_u *)VAR_WIN, PV_SCROLL,
2238 			    {(char_u *)12L, (char_u *)0L} SCRIPTID_INIT},
2239     {"scrollbind",  "scb",  P_BOOL|P_VI_DEF,
2240 #ifdef FEAT_SCROLLBIND
2241 			    (char_u *)VAR_WIN, PV_SCBIND,
2242 #else
2243 			    (char_u *)NULL, PV_NONE,
2244 #endif
2245 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2246     {"scrolljump",  "sj",   P_NUM|P_VI_DEF|P_VIM,
2247 			    (char_u *)&p_sj, PV_NONE,
2248 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2249     {"scrolloff",   "so",   P_NUM|P_VI_DEF|P_VIM|P_RALL,
2250 			    (char_u *)&p_so, PV_NONE,
2251 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2252     {"scrollopt",   "sbo",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2253 #ifdef FEAT_SCROLLBIND
2254 			    (char_u *)&p_sbo, PV_NONE,
2255 			    {(char_u *)"ver,jump", (char_u *)0L}
2256 #else
2257 			    (char_u *)NULL, PV_NONE,
2258 			    {(char_u *)0L, (char_u *)0L}
2259 #endif
2260 			    SCRIPTID_INIT},
2261     {"sections",    "sect", P_STRING|P_VI_DEF,
2262 			    (char_u *)&p_sections, PV_NONE,
2263 			    {(char_u *)"SHNHH HUnhsh", (char_u *)0L}
2264 			    SCRIPTID_INIT},
2265     {"secure",	    NULL,   P_BOOL|P_VI_DEF|P_SECURE,
2266 			    (char_u *)&p_secure, PV_NONE,
2267 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2268     {"selection",   "sel",  P_STRING|P_VI_DEF,
2269 			    (char_u *)&p_sel, PV_NONE,
2270 			    {(char_u *)"inclusive", (char_u *)0L}
2271 			    SCRIPTID_INIT},
2272     {"selectmode",  "slm",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2273 			    (char_u *)&p_slm, PV_NONE,
2274 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2275     {"sessionoptions", "ssop", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2276 #ifdef FEAT_SESSION
2277 			    (char_u *)&p_ssop, PV_NONE,
2278 	 {(char_u *)"blank,buffers,curdir,folds,help,options,tabpages,winsize",
2279 							       (char_u *)0L}
2280 #else
2281 			    (char_u *)NULL, PV_NONE,
2282 			    {(char_u *)0L, (char_u *)0L}
2283 #endif
2284 			    SCRIPTID_INIT},
2285     {"shell",	    "sh",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
2286 			    (char_u *)&p_sh, PV_NONE,
2287 			    {
2288 #ifdef VMS
2289 			    (char_u *)"-",
2290 #else
2291 # if defined(MSDOS)
2292 			    (char_u *)"command",
2293 # else
2294 #  if defined(WIN16)
2295 			    (char_u *)"command.com",
2296 #  else
2297 #   if defined(WIN3264)
2298 			    (char_u *)"",	/* set in set_init_1() */
2299 #   else
2300 			    (char_u *)"sh",
2301 #   endif
2302 #  endif
2303 # endif
2304 #endif /* VMS */
2305 				(char_u *)0L} SCRIPTID_INIT},
2306     {"shellcmdflag","shcf", P_STRING|P_VI_DEF|P_SECURE,
2307 			    (char_u *)&p_shcf, PV_NONE,
2308 			    {
2309 #if defined(MSDOS) || defined(MSWIN)
2310 			    (char_u *)"/c",
2311 #else
2312 			    (char_u *)"-c",
2313 #endif
2314 				(char_u *)0L} SCRIPTID_INIT},
2315     {"shellpipe",   "sp",   P_STRING|P_VI_DEF|P_SECURE,
2316 #ifdef FEAT_QUICKFIX
2317 			    (char_u *)&p_sp, PV_NONE,
2318 			    {
2319 #if defined(UNIX)
2320 			    (char_u *)"| tee",
2321 #else
2322 			    (char_u *)">",
2323 #endif
2324 				(char_u *)0L}
2325 #else
2326 			    (char_u *)NULL, PV_NONE,
2327 			    {(char_u *)0L, (char_u *)0L}
2328 #endif
2329 			    SCRIPTID_INIT},
2330     {"shellquote",  "shq",  P_STRING|P_VI_DEF|P_SECURE,
2331 			    (char_u *)&p_shq, PV_NONE,
2332 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2333     {"shellredir",  "srr",  P_STRING|P_VI_DEF|P_SECURE,
2334 			    (char_u *)&p_srr, PV_NONE,
2335 			    {(char_u *)">", (char_u *)0L} SCRIPTID_INIT},
2336     {"shellslash",  "ssl",   P_BOOL|P_VI_DEF,
2337 #ifdef BACKSLASH_IN_FILENAME
2338 			    (char_u *)&p_ssl, PV_NONE,
2339 #else
2340 			    (char_u *)NULL, PV_NONE,
2341 #endif
2342 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2343     {"shelltemp",   "stmp", P_BOOL,
2344 			    (char_u *)&p_stmp, PV_NONE,
2345 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
2346     {"shelltype",   "st",   P_NUM|P_VI_DEF,
2347 #ifdef AMIGA
2348 			    (char_u *)&p_st, PV_NONE,
2349 #else
2350 			    (char_u *)NULL, PV_NONE,
2351 #endif
2352 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2353     {"shellxquote", "sxq",  P_STRING|P_VI_DEF|P_SECURE,
2354 			    (char_u *)&p_sxq, PV_NONE,
2355 			    {
2356 #if defined(UNIX) && defined(USE_SYSTEM) && !defined(__EMX__)
2357 			    (char_u *)"\"",
2358 #else
2359 			    (char_u *)"",
2360 #endif
2361 				(char_u *)0L} SCRIPTID_INIT},
2362     {"shellxescape", "sxe", P_STRING|P_VI_DEF|P_SECURE,
2363 			    (char_u *)&p_sxe, PV_NONE,
2364 			    {
2365 #if defined(MSDOS) || defined(WIN16) || defined(WIN3264)
2366 			    (char_u *)"\"&|<>()@^",
2367 #else
2368 			    (char_u *)"",
2369 #endif
2370 				(char_u *)0L} SCRIPTID_INIT},
2371     {"shiftround",  "sr",   P_BOOL|P_VI_DEF|P_VIM,
2372 			    (char_u *)&p_sr, PV_NONE,
2373 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2374     {"shiftwidth",  "sw",   P_NUM|P_VI_DEF,
2375 			    (char_u *)&p_sw, PV_SW,
2376 			    {(char_u *)8L, (char_u *)0L} SCRIPTID_INIT},
2377     {"shortmess",   "shm",  P_STRING|P_VIM|P_FLAGLIST,
2378 			    (char_u *)&p_shm, PV_NONE,
2379 			    {(char_u *)"", (char_u *)"filnxtToO"}
2380 			    SCRIPTID_INIT},
2381     {"shortname",   "sn",   P_BOOL|P_VI_DEF,
2382 #ifdef SHORT_FNAME
2383 			    (char_u *)NULL, PV_NONE,
2384 #else
2385 			    (char_u *)&p_sn, PV_SN,
2386 #endif
2387 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2388     {"showbreak",   "sbr",  P_STRING|P_VI_DEF|P_RALL,
2389 #ifdef FEAT_LINEBREAK
2390 			    (char_u *)&p_sbr, PV_NONE,
2391 #else
2392 			    (char_u *)NULL, PV_NONE,
2393 #endif
2394 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2395     {"showcmd",	    "sc",   P_BOOL|P_VIM,
2396 #ifdef FEAT_CMDL_INFO
2397 			    (char_u *)&p_sc, PV_NONE,
2398 #else
2399 			    (char_u *)NULL, PV_NONE,
2400 #endif
2401 			    {(char_u *)FALSE,
2402 #ifdef UNIX
2403 				(char_u *)FALSE
2404 #else
2405 				(char_u *)TRUE
2406 #endif
2407 				} SCRIPTID_INIT},
2408     {"showfulltag", "sft",  P_BOOL|P_VI_DEF,
2409 			    (char_u *)&p_sft, PV_NONE,
2410 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2411     {"showmatch",   "sm",   P_BOOL|P_VI_DEF,
2412 			    (char_u *)&p_sm, PV_NONE,
2413 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2414     {"showmode",    "smd",  P_BOOL|P_VIM,
2415 			    (char_u *)&p_smd, PV_NONE,
2416 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
2417     {"showtabline", "stal", P_NUM|P_VI_DEF|P_RALL,
2418 #ifdef FEAT_WINDOWS
2419 			    (char_u *)&p_stal, PV_NONE,
2420 #else
2421 			    (char_u *)NULL, PV_NONE,
2422 #endif
2423 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2424     {"sidescroll",  "ss",   P_NUM|P_VI_DEF,
2425 			    (char_u *)&p_ss, PV_NONE,
2426 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2427     {"sidescrolloff", "siso", P_NUM|P_VI_DEF|P_VIM|P_RBUF,
2428 			    (char_u *)&p_siso, PV_NONE,
2429 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2430     {"slowopen",    "slow", P_BOOL|P_VI_DEF,
2431 			    (char_u *)NULL, PV_NONE,
2432 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2433     {"smartcase",   "scs",  P_BOOL|P_VI_DEF|P_VIM,
2434 			    (char_u *)&p_scs, PV_NONE,
2435 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2436     {"smartindent", "si",   P_BOOL|P_VI_DEF|P_VIM,
2437 #ifdef FEAT_SMARTINDENT
2438 			    (char_u *)&p_si, PV_SI,
2439 #else
2440 			    (char_u *)NULL, PV_NONE,
2441 #endif
2442 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2443     {"smarttab",    "sta",  P_BOOL|P_VI_DEF|P_VIM,
2444 			    (char_u *)&p_sta, PV_NONE,
2445 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2446     {"softtabstop", "sts",  P_NUM|P_VI_DEF|P_VIM,
2447 			    (char_u *)&p_sts, PV_STS,
2448 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2449     {"sourceany",   NULL,   P_BOOL|P_VI_DEF,
2450 			    (char_u *)NULL, PV_NONE,
2451 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2452     {"spell",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
2453 #ifdef FEAT_SPELL
2454 			    (char_u *)VAR_WIN, PV_SPELL,
2455 #else
2456 			    (char_u *)NULL, PV_NONE,
2457 #endif
2458 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2459     {"spellcapcheck", "spc", P_STRING|P_ALLOCED|P_VI_DEF|P_RBUF,
2460 #ifdef FEAT_SPELL
2461 			    (char_u *)&p_spc, PV_SPC,
2462 			    {(char_u *)"[.?!]\\_[\\])'\"	 ]\\+", (char_u *)0L}
2463 #else
2464 			    (char_u *)NULL, PV_NONE,
2465 			    {(char_u *)0L, (char_u *)0L}
2466 #endif
2467 			    SCRIPTID_INIT},
2468     {"spellfile",   "spf",  P_STRING|P_EXPAND|P_ALLOCED|P_VI_DEF|P_SECURE
2469 								  |P_ONECOMMA,
2470 #ifdef FEAT_SPELL
2471 			    (char_u *)&p_spf, PV_SPF,
2472 			    {(char_u *)"", (char_u *)0L}
2473 #else
2474 			    (char_u *)NULL, PV_NONE,
2475 			    {(char_u *)0L, (char_u *)0L}
2476 #endif
2477 			    SCRIPTID_INIT},
2478     {"spelllang",   "spl",  P_STRING|P_ALLOCED|P_VI_DEF|P_ONECOMMA
2479 							     |P_RBUF|P_EXPAND,
2480 #ifdef FEAT_SPELL
2481 			    (char_u *)&p_spl, PV_SPL,
2482 			    {(char_u *)"en", (char_u *)0L}
2483 #else
2484 			    (char_u *)NULL, PV_NONE,
2485 			    {(char_u *)0L, (char_u *)0L}
2486 #endif
2487 			    SCRIPTID_INIT},
2488     {"spellsuggest", "sps", P_STRING|P_VI_DEF|P_EXPAND|P_SECURE|P_ONECOMMA,
2489 #ifdef FEAT_SPELL
2490 			    (char_u *)&p_sps, PV_NONE,
2491 			    {(char_u *)"best", (char_u *)0L}
2492 #else
2493 			    (char_u *)NULL, PV_NONE,
2494 			    {(char_u *)0L, (char_u *)0L}
2495 #endif
2496 			    SCRIPTID_INIT},
2497     {"splitbelow",  "sb",   P_BOOL|P_VI_DEF,
2498 #ifdef FEAT_WINDOWS
2499 			    (char_u *)&p_sb, PV_NONE,
2500 #else
2501 			    (char_u *)NULL, PV_NONE,
2502 #endif
2503 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2504     {"splitright",  "spr",  P_BOOL|P_VI_DEF,
2505 #ifdef FEAT_VERTSPLIT
2506 			    (char_u *)&p_spr, PV_NONE,
2507 #else
2508 			    (char_u *)NULL, PV_NONE,
2509 #endif
2510 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2511     {"startofline", "sol",  P_BOOL|P_VI_DEF|P_VIM,
2512 			    (char_u *)&p_sol, PV_NONE,
2513 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2514     {"statusline"  ,"stl",  P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT,
2515 #ifdef FEAT_STL_OPT
2516 			    (char_u *)&p_stl, PV_STL,
2517 #else
2518 			    (char_u *)NULL, PV_NONE,
2519 #endif
2520 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2521     {"suffixes",    "su",   P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2522 			    (char_u *)&p_su, PV_NONE,
2523 			    {(char_u *)".bak,~,.o,.h,.info,.swp,.obj",
2524 				(char_u *)0L} SCRIPTID_INIT},
2525     {"suffixesadd", "sua",  P_STRING|P_VI_DEF|P_ALLOCED|P_ONECOMMA|P_NODUP,
2526 #ifdef FEAT_SEARCHPATH
2527 			    (char_u *)&p_sua, PV_SUA,
2528 			    {(char_u *)"", (char_u *)0L}
2529 #else
2530 			    (char_u *)NULL, PV_NONE,
2531 			    {(char_u *)0L, (char_u *)0L}
2532 #endif
2533 			    SCRIPTID_INIT},
2534     {"swapfile",    "swf",  P_BOOL|P_VI_DEF|P_RSTAT,
2535 			    (char_u *)&p_swf, PV_SWF,
2536 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2537     {"swapsync",    "sws",  P_STRING|P_VI_DEF,
2538 			    (char_u *)&p_sws, PV_NONE,
2539 			    {(char_u *)"fsync", (char_u *)0L} SCRIPTID_INIT},
2540     {"switchbuf",   "swb",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2541 			    (char_u *)&p_swb, PV_NONE,
2542 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2543     {"synmaxcol",   "smc",  P_NUM|P_VI_DEF|P_RBUF,
2544 #ifdef FEAT_SYN_HL
2545 			    (char_u *)&p_smc, PV_SMC,
2546 			    {(char_u *)3000L, (char_u *)0L}
2547 #else
2548 			    (char_u *)NULL, PV_NONE,
2549 			    {(char_u *)0L, (char_u *)0L}
2550 #endif
2551 			    SCRIPTID_INIT},
2552     {"syntax",	    "syn",  P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB|P_NFNAME,
2553 #ifdef FEAT_SYN_HL
2554 			    (char_u *)&p_syn, PV_SYN,
2555 			    {(char_u *)"", (char_u *)0L}
2556 #else
2557 			    (char_u *)NULL, PV_NONE,
2558 			    {(char_u *)0L, (char_u *)0L}
2559 #endif
2560 			    SCRIPTID_INIT},
2561     {"tabline",	    "tal",  P_STRING|P_VI_DEF|P_RALL,
2562 #ifdef FEAT_STL_OPT
2563 			    (char_u *)&p_tal, PV_NONE,
2564 #else
2565 			    (char_u *)NULL, PV_NONE,
2566 #endif
2567 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2568     {"tabpagemax",  "tpm",  P_NUM|P_VI_DEF,
2569 #ifdef FEAT_WINDOWS
2570 			    (char_u *)&p_tpm, PV_NONE,
2571 #else
2572 			    (char_u *)NULL, PV_NONE,
2573 #endif
2574 			    {(char_u *)10L, (char_u *)0L} SCRIPTID_INIT},
2575     {"tabstop",	    "ts",   P_NUM|P_VI_DEF|P_RBUF,
2576 			    (char_u *)&p_ts, PV_TS,
2577 			    {(char_u *)8L, (char_u *)0L} SCRIPTID_INIT},
2578     {"tagbsearch",  "tbs",   P_BOOL|P_VI_DEF,
2579 			    (char_u *)&p_tbs, PV_NONE,
2580 #ifdef VMS	/* binary searching doesn't appear to work on VMS */
2581 			    {(char_u *)0L, (char_u *)0L}
2582 #else
2583 			    {(char_u *)TRUE, (char_u *)0L}
2584 #endif
2585 			    SCRIPTID_INIT},
2586     {"tagcase",	    "tc",   P_STRING|P_VIM,
2587 			    (char_u *)&p_tc, PV_TC,
2588 			    {(char_u *)"followic", (char_u *)"followic"} SCRIPTID_INIT},
2589     {"taglength",   "tl",   P_NUM|P_VI_DEF,
2590 			    (char_u *)&p_tl, PV_NONE,
2591 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2592     {"tagrelative", "tr",   P_BOOL|P_VIM,
2593 			    (char_u *)&p_tr, PV_NONE,
2594 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
2595     {"tags",	    "tag",  P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA|P_NODUP,
2596 			    (char_u *)&p_tags, PV_TAGS,
2597 			    {
2598 #if defined(FEAT_EMACS_TAGS) && !defined(CASE_INSENSITIVE_FILENAME)
2599 			    (char_u *)"./tags,./TAGS,tags,TAGS",
2600 #else
2601 			    (char_u *)"./tags,tags",
2602 #endif
2603 				(char_u *)0L} SCRIPTID_INIT},
2604     {"tagstack",    "tgst", P_BOOL|P_VI_DEF,
2605 			    (char_u *)&p_tgst, PV_NONE,
2606 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2607     {"term",	    NULL,   P_STRING|P_EXPAND|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RALL,
2608 			    (char_u *)&T_NAME, PV_NONE,
2609 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2610     {"termbidi", "tbidi",   P_BOOL|P_VI_DEF,
2611 #ifdef FEAT_ARABIC
2612 			    (char_u *)&p_tbidi, PV_NONE,
2613 #else
2614 			    (char_u *)NULL, PV_NONE,
2615 #endif
2616 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2617     {"termencoding", "tenc", P_STRING|P_VI_DEF|P_RCLR,
2618 #ifdef FEAT_MBYTE
2619 			    (char_u *)&p_tenc, PV_NONE,
2620 			    {(char_u *)"", (char_u *)0L}
2621 #else
2622 			    (char_u *)NULL, PV_NONE,
2623 			    {(char_u *)0L, (char_u *)0L}
2624 #endif
2625 			    SCRIPTID_INIT},
2626     {"terse",	    NULL,   P_BOOL|P_VI_DEF,
2627 			    (char_u *)&p_terse, PV_NONE,
2628 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2629     {"textauto",    "ta",   P_BOOL|P_VIM,
2630 			    (char_u *)&p_ta, PV_NONE,
2631 			    {(char_u *)DFLT_TEXTAUTO, (char_u *)TRUE}
2632 			    SCRIPTID_INIT},
2633     {"textmode",    "tx",   P_BOOL|P_VI_DEF|P_NO_MKRC,
2634 			    (char_u *)&p_tx, PV_TX,
2635 			    {
2636 #ifdef USE_CRNL
2637 			    (char_u *)TRUE,
2638 #else
2639 			    (char_u *)FALSE,
2640 #endif
2641 				(char_u *)0L} SCRIPTID_INIT},
2642     {"textwidth",   "tw",   P_NUM|P_VI_DEF|P_VIM|P_RBUF,
2643 			    (char_u *)&p_tw, PV_TW,
2644 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2645     {"thesaurus",   "tsr",  P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA|P_NODUP,
2646 #ifdef FEAT_INS_EXPAND
2647 			    (char_u *)&p_tsr, PV_TSR,
2648 #else
2649 			    (char_u *)NULL, PV_NONE,
2650 #endif
2651 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2652     {"tildeop",	    "top",  P_BOOL|P_VI_DEF|P_VIM,
2653 			    (char_u *)&p_to, PV_NONE,
2654 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2655     {"timeout",	    "to",   P_BOOL|P_VI_DEF,
2656 			    (char_u *)&p_timeout, PV_NONE,
2657 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2658     {"timeoutlen",  "tm",   P_NUM|P_VI_DEF,
2659 			    (char_u *)&p_tm, PV_NONE,
2660 			    {(char_u *)1000L, (char_u *)0L} SCRIPTID_INIT},
2661     {"title",	    NULL,   P_BOOL|P_VI_DEF,
2662 #ifdef FEAT_TITLE
2663 			    (char_u *)&p_title, PV_NONE,
2664 #else
2665 			    (char_u *)NULL, PV_NONE,
2666 #endif
2667 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2668     {"titlelen",    NULL,   P_NUM|P_VI_DEF,
2669 #ifdef FEAT_TITLE
2670 			    (char_u *)&p_titlelen, PV_NONE,
2671 #else
2672 			    (char_u *)NULL, PV_NONE,
2673 #endif
2674 			    {(char_u *)85L, (char_u *)0L} SCRIPTID_INIT},
2675     {"titleold",    NULL,   P_STRING|P_VI_DEF|P_GETTEXT|P_SECURE|P_NO_MKRC,
2676 #ifdef FEAT_TITLE
2677 			    (char_u *)&p_titleold, PV_NONE,
2678 			    {(char_u *)N_("Thanks for flying Vim"),
2679 							       (char_u *)0L}
2680 #else
2681 			    (char_u *)NULL, PV_NONE,
2682 			    {(char_u *)0L, (char_u *)0L}
2683 #endif
2684 			    SCRIPTID_INIT},
2685     {"titlestring", NULL,   P_STRING|P_VI_DEF,
2686 #ifdef FEAT_TITLE
2687 			    (char_u *)&p_titlestring, PV_NONE,
2688 #else
2689 			    (char_u *)NULL, PV_NONE,
2690 #endif
2691 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2692 #if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
2693     {"toolbar",     "tb",   P_STRING|P_ONECOMMA|P_VI_DEF|P_NODUP,
2694 			    (char_u *)&p_toolbar, PV_NONE,
2695 			    {(char_u *)"icons,tooltips", (char_u *)0L}
2696 			    SCRIPTID_INIT},
2697 #endif
2698 #if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK)
2699     {"toolbariconsize",	"tbis", P_STRING|P_VI_DEF,
2700 			    (char_u *)&p_tbis, PV_NONE,
2701 			    {(char_u *)"small", (char_u *)0L} SCRIPTID_INIT},
2702 #endif
2703     {"ttimeout",    NULL,   P_BOOL|P_VI_DEF|P_VIM,
2704 			    (char_u *)&p_ttimeout, PV_NONE,
2705 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2706     {"ttimeoutlen", "ttm",  P_NUM|P_VI_DEF,
2707 			    (char_u *)&p_ttm, PV_NONE,
2708 			    {(char_u *)-1L, (char_u *)0L} SCRIPTID_INIT},
2709     {"ttybuiltin",  "tbi",  P_BOOL|P_VI_DEF,
2710 			    (char_u *)&p_tbi, PV_NONE,
2711 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2712     {"ttyfast",	    "tf",   P_BOOL|P_NO_MKRC|P_VI_DEF,
2713 			    (char_u *)&p_tf, PV_NONE,
2714 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2715     {"ttymouse",    "ttym", P_STRING|P_NODEFAULT|P_NO_MKRC|P_VI_DEF,
2716 #if defined(FEAT_MOUSE) && (defined(UNIX) || defined(VMS))
2717 			    (char_u *)&p_ttym, PV_NONE,
2718 #else
2719 			    (char_u *)NULL, PV_NONE,
2720 #endif
2721 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2722     {"ttyscroll",   "tsl",  P_NUM|P_VI_DEF,
2723 			    (char_u *)&p_ttyscroll, PV_NONE,
2724 			    {(char_u *)999L, (char_u *)0L} SCRIPTID_INIT},
2725     {"ttytype",	    "tty",  P_STRING|P_EXPAND|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RALL,
2726 			    (char_u *)&T_NAME, PV_NONE,
2727 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2728     {"undodir",     "udir", P_STRING|P_EXPAND|P_ONECOMMA|P_NODUP|P_SECURE
2729 								    |P_VI_DEF,
2730 #ifdef FEAT_PERSISTENT_UNDO
2731 			    (char_u *)&p_udir, PV_NONE,
2732 			    {(char_u *)".", (char_u *)0L}
2733 #else
2734 			    (char_u *)NULL, PV_NONE,
2735 			    {(char_u *)0L, (char_u *)0L}
2736 #endif
2737 			    SCRIPTID_INIT},
2738     {"undofile",    "udf",  P_BOOL|P_VI_DEF|P_VIM,
2739 #ifdef FEAT_PERSISTENT_UNDO
2740 			    (char_u *)&p_udf, PV_UDF,
2741 #else
2742 			    (char_u *)NULL, PV_NONE,
2743 #endif
2744 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2745     {"undolevels",  "ul",   P_NUM|P_VI_DEF,
2746 			    (char_u *)&p_ul, PV_UL,
2747 			    {
2748 #if defined(UNIX) || defined(WIN3264) || defined(VMS)
2749 			    (char_u *)1000L,
2750 #else
2751 			    (char_u *)100L,
2752 #endif
2753 				(char_u *)0L} SCRIPTID_INIT},
2754     {"undoreload",  "ur",   P_NUM|P_VI_DEF,
2755 			    (char_u *)&p_ur, PV_NONE,
2756 			    { (char_u *)10000L, (char_u *)0L} SCRIPTID_INIT},
2757     {"updatecount", "uc",   P_NUM|P_VI_DEF,
2758 			    (char_u *)&p_uc, PV_NONE,
2759 			    {(char_u *)200L, (char_u *)0L} SCRIPTID_INIT},
2760     {"updatetime",  "ut",   P_NUM|P_VI_DEF,
2761 			    (char_u *)&p_ut, PV_NONE,
2762 			    {(char_u *)4000L, (char_u *)0L} SCRIPTID_INIT},
2763     {"verbose",	    "vbs",  P_NUM|P_VI_DEF,
2764 			    (char_u *)&p_verbose, PV_NONE,
2765 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2766     {"verbosefile", "vfile", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
2767 			    (char_u *)&p_vfile, PV_NONE,
2768 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2769     {"viewdir",     "vdir", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
2770 #ifdef FEAT_SESSION
2771 			    (char_u *)&p_vdir, PV_NONE,
2772 			    {(char_u *)DFLT_VDIR, (char_u *)0L}
2773 #else
2774 			    (char_u *)NULL, PV_NONE,
2775 			    {(char_u *)0L, (char_u *)0L}
2776 #endif
2777 			    SCRIPTID_INIT},
2778     {"viewoptions", "vop",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2779 #ifdef FEAT_SESSION
2780 			    (char_u *)&p_vop, PV_NONE,
2781 			    {(char_u *)"folds,options,cursor", (char_u *)0L}
2782 #else
2783 			    (char_u *)NULL, PV_NONE,
2784 			    {(char_u *)0L, (char_u *)0L}
2785 #endif
2786 			    SCRIPTID_INIT},
2787     {"viminfo",	    "vi",   P_STRING|P_ONECOMMA|P_NODUP|P_SECURE,
2788 #ifdef FEAT_VIMINFO
2789 			    (char_u *)&p_viminfo, PV_NONE,
2790 #if defined(MSDOS) || defined(MSWIN)
2791 			    {(char_u *)"", (char_u *)"'100,<50,s10,h,rA:,rB:"}
2792 #else
2793 # ifdef AMIGA
2794 			    {(char_u *)"",
2795 				 (char_u *)"'100,<50,s10,h,rdf0:,rdf1:,rdf2:"}
2796 # else
2797 			    {(char_u *)"", (char_u *)"'100,<50,s10,h"}
2798 # endif
2799 #endif
2800 #else
2801 			    (char_u *)NULL, PV_NONE,
2802 			    {(char_u *)0L, (char_u *)0L}
2803 #endif
2804 			    SCRIPTID_INIT},
2805     {"virtualedit", "ve",   P_STRING|P_ONECOMMA|P_NODUP|P_VI_DEF
2806 							    |P_VIM|P_CURSWANT,
2807 #ifdef FEAT_VIRTUALEDIT
2808 			    (char_u *)&p_ve, PV_NONE,
2809 			    {(char_u *)"", (char_u *)""}
2810 #else
2811 			    (char_u *)NULL, PV_NONE,
2812 			    {(char_u *)0L, (char_u *)0L}
2813 #endif
2814 			    SCRIPTID_INIT},
2815     {"visualbell",  "vb",   P_BOOL|P_VI_DEF,
2816 			    (char_u *)&p_vb, PV_NONE,
2817 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2818     {"w300",	    NULL,   P_NUM|P_VI_DEF,
2819 			    (char_u *)NULL, PV_NONE,
2820 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2821     {"w1200",	    NULL,   P_NUM|P_VI_DEF,
2822 			    (char_u *)NULL, PV_NONE,
2823 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2824     {"w9600",	    NULL,   P_NUM|P_VI_DEF,
2825 			    (char_u *)NULL, PV_NONE,
2826 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2827     {"warn",	    NULL,   P_BOOL|P_VI_DEF,
2828 			    (char_u *)&p_warn, PV_NONE,
2829 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2830     {"weirdinvert", "wiv",  P_BOOL|P_VI_DEF|P_RCLR,
2831 			    (char_u *)&p_wiv, PV_NONE,
2832 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2833     {"whichwrap",   "ww",   P_STRING|P_VIM|P_ONECOMMA|P_FLAGLIST,
2834 			    (char_u *)&p_ww, PV_NONE,
2835 			    {(char_u *)"", (char_u *)"b,s"} SCRIPTID_INIT},
2836     {"wildchar",    "wc",   P_NUM|P_VIM,
2837 			    (char_u *)&p_wc, PV_NONE,
2838 			    {(char_u *)(long)Ctrl_E, (char_u *)(long)TAB}
2839 			    SCRIPTID_INIT},
2840     {"wildcharm",   "wcm",  P_NUM|P_VI_DEF,
2841 			    (char_u *)&p_wcm, PV_NONE,
2842 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2843     {"wildignore",  "wig",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2844 #ifdef FEAT_WILDIGN
2845 			    (char_u *)&p_wig, PV_NONE,
2846 #else
2847 			    (char_u *)NULL, PV_NONE,
2848 #endif
2849 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2850     {"wildignorecase", "wic", P_BOOL|P_VI_DEF,
2851 			    (char_u *)&p_wic, PV_NONE,
2852 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2853     {"wildmenu",    "wmnu", P_BOOL|P_VI_DEF,
2854 #ifdef FEAT_WILDMENU
2855 			    (char_u *)&p_wmnu, PV_NONE,
2856 #else
2857 			    (char_u *)NULL, PV_NONE,
2858 #endif
2859 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2860     {"wildmode",    "wim",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
2861 			    (char_u *)&p_wim, PV_NONE,
2862 			    {(char_u *)"full", (char_u *)0L} SCRIPTID_INIT},
2863     {"wildoptions", "wop",  P_STRING|P_VI_DEF,
2864 #ifdef FEAT_CMDL_COMPL
2865 			    (char_u *)&p_wop, PV_NONE,
2866 			    {(char_u *)"", (char_u *)0L}
2867 #else
2868 			    (char_u *)NULL, PV_NONE,
2869 			    {(char_u *)NULL, (char_u *)0L}
2870 #endif
2871 			    SCRIPTID_INIT},
2872     {"winaltkeys",  "wak",  P_STRING|P_VI_DEF,
2873 #ifdef FEAT_WAK
2874 			    (char_u *)&p_wak, PV_NONE,
2875 			    {(char_u *)"menu", (char_u *)0L}
2876 #else
2877 			    (char_u *)NULL, PV_NONE,
2878 			    {(char_u *)NULL, (char_u *)0L}
2879 #endif
2880 			    SCRIPTID_INIT},
2881     {"window",	    "wi",   P_NUM|P_VI_DEF,
2882 			    (char_u *)&p_window, PV_NONE,
2883 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2884     {"winheight",   "wh",   P_NUM|P_VI_DEF,
2885 #ifdef FEAT_WINDOWS
2886 			    (char_u *)&p_wh, PV_NONE,
2887 #else
2888 			    (char_u *)NULL, PV_NONE,
2889 #endif
2890 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2891     {"winfixheight", "wfh", P_BOOL|P_VI_DEF|P_RSTAT,
2892 #ifdef FEAT_WINDOWS
2893 			    (char_u *)VAR_WIN, PV_WFH,
2894 #else
2895 			    (char_u *)NULL, PV_NONE,
2896 #endif
2897 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2898     {"winfixwidth", "wfw", P_BOOL|P_VI_DEF|P_RSTAT,
2899 #ifdef FEAT_VERTSPLIT
2900 			    (char_u *)VAR_WIN, PV_WFW,
2901 #else
2902 			    (char_u *)NULL, PV_NONE,
2903 #endif
2904 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2905     {"winminheight", "wmh", P_NUM|P_VI_DEF,
2906 #ifdef FEAT_WINDOWS
2907 			    (char_u *)&p_wmh, PV_NONE,
2908 #else
2909 			    (char_u *)NULL, PV_NONE,
2910 #endif
2911 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2912     {"winminwidth", "wmw", P_NUM|P_VI_DEF,
2913 #ifdef FEAT_VERTSPLIT
2914 			    (char_u *)&p_wmw, PV_NONE,
2915 #else
2916 			    (char_u *)NULL, PV_NONE,
2917 #endif
2918 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2919     {"winwidth",   "wiw",   P_NUM|P_VI_DEF,
2920 #ifdef FEAT_VERTSPLIT
2921 			    (char_u *)&p_wiw, PV_NONE,
2922 #else
2923 			    (char_u *)NULL, PV_NONE,
2924 #endif
2925 			    {(char_u *)20L, (char_u *)0L} SCRIPTID_INIT},
2926     {"wrap",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
2927 			    (char_u *)VAR_WIN, PV_WRAP,
2928 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2929     {"wrapmargin",  "wm",   P_NUM|P_VI_DEF,
2930 			    (char_u *)&p_wm, PV_WM,
2931 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2932     {"wrapscan",    "ws",   P_BOOL|P_VI_DEF,
2933 			    (char_u *)&p_ws, PV_NONE,
2934 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2935     {"write",	    NULL,   P_BOOL|P_VI_DEF,
2936 			    (char_u *)&p_write, PV_NONE,
2937 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2938     {"writeany",    "wa",   P_BOOL|P_VI_DEF,
2939 			    (char_u *)&p_wa, PV_NONE,
2940 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2941     {"writebackup", "wb",   P_BOOL|P_VI_DEF|P_VIM,
2942 			    (char_u *)&p_wb, PV_NONE,
2943 			    {
2944 #ifdef FEAT_WRITEBACKUP
2945 			    (char_u *)TRUE,
2946 #else
2947 			    (char_u *)FALSE,
2948 #endif
2949 				(char_u *)0L} SCRIPTID_INIT},
2950     {"writedelay",  "wd",   P_NUM|P_VI_DEF,
2951 			    (char_u *)&p_wd, PV_NONE,
2952 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2953 
2954 /* terminal output codes */
2955 #define p_term(sss, vvv)   {sss, NULL, P_STRING|P_VI_DEF|P_RALL|P_SECURE, \
2956 			    (char_u *)&vvv, PV_NONE, \
2957 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2958 
2959     p_term("t_AB", T_CAB)
2960     p_term("t_AF", T_CAF)
2961     p_term("t_AL", T_CAL)
2962     p_term("t_al", T_AL)
2963     p_term("t_bc", T_BC)
2964     p_term("t_cd", T_CD)
2965     p_term("t_ce", T_CE)
2966     p_term("t_cl", T_CL)
2967     p_term("t_cm", T_CM)
2968     p_term("t_Ce", T_UCE)
2969     p_term("t_Co", T_CCO)
2970     p_term("t_CS", T_CCS)
2971     p_term("t_Cs", T_UCS)
2972     p_term("t_cs", T_CS)
2973 #ifdef FEAT_VERTSPLIT
2974     p_term("t_CV", T_CSV)
2975 #endif
2976     p_term("t_da", T_DA)
2977     p_term("t_db", T_DB)
2978     p_term("t_DL", T_CDL)
2979     p_term("t_dl", T_DL)
2980     p_term("t_EI", T_CEI)
2981     p_term("t_fs", T_FS)
2982     p_term("t_IE", T_CIE)
2983     p_term("t_IS", T_CIS)
2984     p_term("t_ke", T_KE)
2985     p_term("t_ks", T_KS)
2986     p_term("t_le", T_LE)
2987     p_term("t_mb", T_MB)
2988     p_term("t_md", T_MD)
2989     p_term("t_me", T_ME)
2990     p_term("t_mr", T_MR)
2991     p_term("t_ms", T_MS)
2992     p_term("t_nd", T_ND)
2993     p_term("t_op", T_OP)
2994     p_term("t_RB", T_RBG)
2995     p_term("t_RI", T_CRI)
2996     p_term("t_RV", T_CRV)
2997     p_term("t_Sb", T_CSB)
2998     p_term("t_se", T_SE)
2999     p_term("t_Sf", T_CSF)
3000     p_term("t_SI", T_CSI)
3001     p_term("t_so", T_SO)
3002     p_term("t_SR", T_CSR)
3003     p_term("t_sr", T_SR)
3004     p_term("t_te", T_TE)
3005     p_term("t_ti", T_TI)
3006     p_term("t_ts", T_TS)
3007     p_term("t_u7", T_U7)
3008     p_term("t_ue", T_UE)
3009     p_term("t_us", T_US)
3010     p_term("t_ut", T_UT)
3011     p_term("t_vb", T_VB)
3012     p_term("t_ve", T_VE)
3013     p_term("t_vi", T_VI)
3014     p_term("t_vs", T_VS)
3015     p_term("t_WP", T_CWP)
3016     p_term("t_WS", T_CWS)
3017     p_term("t_xn", T_XN)
3018     p_term("t_xs", T_XS)
3019     p_term("t_ZH", T_CZH)
3020     p_term("t_ZR", T_CZR)
3021 
3022 /* terminal key codes are not in here */
3023 
3024     /* end marker */
3025     {NULL, NULL, 0, NULL, PV_NONE, {NULL, NULL} SCRIPTID_INIT}
3026 };
3027 
3028 #define PARAM_COUNT (sizeof(options) / sizeof(struct vimoption))
3029 
3030 #ifdef FEAT_MBYTE
3031 static char *(p_ambw_values[]) = {"single", "double", NULL};
3032 #endif
3033 static char *(p_bg_values[]) = {"light", "dark", NULL};
3034 static char *(p_nf_values[]) = {"octal", "hex", "alpha", NULL};
3035 static char *(p_ff_values[]) = {FF_UNIX, FF_DOS, FF_MAC, NULL};
3036 #ifdef FEAT_CRYPT
3037 static char *(p_cm_values[]) = {"zip", "blowfish", "blowfish2", NULL};
3038 #endif
3039 #ifdef FEAT_CMDL_COMPL
3040 static char *(p_wop_values[]) = {"tagfile", NULL};
3041 #endif
3042 #ifdef FEAT_WAK
3043 static char *(p_wak_values[]) = {"yes", "menu", "no", NULL};
3044 #endif
3045 static char *(p_mousem_values[]) = {"extend", "popup", "popup_setpos", "mac", NULL};
3046 static char *(p_sel_values[]) = {"inclusive", "exclusive", "old", NULL};
3047 static char *(p_slm_values[]) = {"mouse", "key", "cmd", NULL};
3048 static char *(p_km_values[]) = {"startsel", "stopsel", NULL};
3049 #ifdef FEAT_BROWSE
3050 static char *(p_bsdir_values[]) = {"current", "last", "buffer", NULL};
3051 #endif
3052 #ifdef FEAT_SCROLLBIND
3053 static char *(p_scbopt_values[]) = {"ver", "hor", "jump", NULL};
3054 #endif
3055 static char *(p_debug_values[]) = {"msg", "throw", "beep", NULL};
3056 #ifdef FEAT_VERTSPLIT
3057 static char *(p_ead_values[]) = {"both", "ver", "hor", NULL};
3058 #endif
3059 #if defined(FEAT_QUICKFIX)
3060 # ifdef FEAT_AUTOCMD
3061 static char *(p_buftype_values[]) = {"nofile", "nowrite", "quickfix", "help", "acwrite", NULL};
3062 # else
3063 static char *(p_buftype_values[]) = {"nofile", "nowrite", "quickfix", "help", NULL};
3064 # endif
3065 static char *(p_bufhidden_values[]) = {"hide", "unload", "delete", "wipe", NULL};
3066 #endif
3067 static char *(p_bs_values[]) = {"indent", "eol", "start", NULL};
3068 #ifdef FEAT_FOLDING
3069 static char *(p_fdm_values[]) = {"manual", "expr", "marker", "indent", "syntax",
3070 # ifdef FEAT_DIFF
3071 				"diff",
3072 # endif
3073 				NULL};
3074 static char *(p_fcl_values[]) = {"all", NULL};
3075 #endif
3076 #ifdef FEAT_INS_EXPAND
3077 static char *(p_cot_values[]) = {"menu", "menuone", "longest", "preview", "noinsert", "noselect", NULL};
3078 #endif
3079 
3080 static void set_option_default __ARGS((int, int opt_flags, int compatible));
3081 static void set_options_default __ARGS((int opt_flags));
3082 static char_u *term_bg_default __ARGS((void));
3083 static void did_set_option __ARGS((int opt_idx, int opt_flags, int new_value));
3084 static char_u *illegal_char __ARGS((char_u *, int));
3085 static int string_to_key __ARGS((char_u *arg));
3086 #ifdef FEAT_CMDWIN
3087 static char_u *check_cedit __ARGS((void));
3088 #endif
3089 #ifdef FEAT_TITLE
3090 static void did_set_title __ARGS((int icon));
3091 #endif
3092 static char_u *option_expand __ARGS((int opt_idx, char_u *val));
3093 static void didset_options __ARGS((void));
3094 static void didset_options2 __ARGS((void));
3095 static void check_string_option __ARGS((char_u **pp));
3096 #if defined(FEAT_EVAL) || defined(PROTO)
3097 static long_u *insecure_flag __ARGS((int opt_idx, int opt_flags));
3098 #else
3099 # define insecure_flag(opt_idx, opt_flags) (&options[opt_idx].flags)
3100 #endif
3101 static void set_string_option_global __ARGS((int opt_idx, char_u **varp));
3102 static char_u *set_string_option __ARGS((int opt_idx, char_u *value, int opt_flags));
3103 static char_u *did_set_string_option __ARGS((int opt_idx, char_u **varp, int new_value_alloced, char_u *oldval, char_u *errbuf, int opt_flags));
3104 static char_u *set_chars_option __ARGS((char_u **varp));
3105 #ifdef FEAT_SYN_HL
3106 static int int_cmp __ARGS((const void *a, const void *b));
3107 #endif
3108 #ifdef FEAT_CLIPBOARD
3109 static char_u *check_clipboard_option __ARGS((void));
3110 #endif
3111 #ifdef FEAT_SPELL
3112 static char_u *did_set_spell_option __ARGS((int is_spellfile));
3113 static char_u *compile_cap_prog __ARGS((synblock_T *synblock));
3114 #endif
3115 #ifdef FEAT_EVAL
3116 static void set_option_scriptID_idx __ARGS((int opt_idx, int opt_flags, int id));
3117 #endif
3118 static char_u *set_bool_option __ARGS((int opt_idx, char_u *varp, int value, int opt_flags));
3119 static char_u *set_num_option __ARGS((int opt_idx, char_u *varp, long value, char_u *errbuf, size_t errbuflen, int opt_flags));
3120 static void check_redraw __ARGS((long_u flags));
3121 static int findoption __ARGS((char_u *));
3122 static int find_key_option __ARGS((char_u *));
3123 static void showoptions __ARGS((int all, int opt_flags));
3124 static int optval_default __ARGS((struct vimoption *, char_u *varp));
3125 static void showoneopt __ARGS((struct vimoption *, int opt_flags));
3126 static int put_setstring __ARGS((FILE *fd, char *cmd, char *name, char_u **valuep, int expand));
3127 static int put_setnum __ARGS((FILE *fd, char *cmd, char *name, long *valuep));
3128 static int put_setbool __ARGS((FILE *fd, char *cmd, char *name, int value));
3129 static int  istermoption __ARGS((struct vimoption *));
3130 static char_u *get_varp_scope __ARGS((struct vimoption *p, int opt_flags));
3131 static char_u *get_varp __ARGS((struct vimoption *));
3132 static void option_value2string __ARGS((struct vimoption *, int opt_flags));
3133 static void check_winopt __ARGS((winopt_T *wop));
3134 static int wc_use_keyname __ARGS((char_u *varp, long *wcp));
3135 #ifdef FEAT_LANGMAP
3136 static void langmap_init __ARGS((void));
3137 static void langmap_set __ARGS((void));
3138 #endif
3139 static void paste_option_changed __ARGS((void));
3140 static void compatible_set __ARGS((void));
3141 #ifdef FEAT_LINEBREAK
3142 static void fill_breakat_flags __ARGS((void));
3143 #endif
3144 static int opt_strings_flags __ARGS((char_u *val, char **values, unsigned *flagp, int list));
3145 static int check_opt_strings __ARGS((char_u *val, char **values, int));
3146 static int check_opt_wim __ARGS((void));
3147 #ifdef FEAT_LINEBREAK
3148 static int briopt_check __ARGS((win_T *wp));
3149 #endif
3150 
3151 /*
3152  * Initialize the options, first part.
3153  *
3154  * Called only once from main(), just after creating the first buffer.
3155  */
3156     void
3157 set_init_1()
3158 {
3159     char_u	*p;
3160     int		opt_idx;
3161     long_u	n;
3162 
3163 #ifdef FEAT_LANGMAP
3164     langmap_init();
3165 #endif
3166 
3167     /* Be Vi compatible by default */
3168     p_cp = TRUE;
3169 
3170     /* Use POSIX compatibility when $VIM_POSIX is set. */
3171     if (mch_getenv((char_u *)"VIM_POSIX") != NULL)
3172     {
3173 	set_string_default("cpo", (char_u *)CPO_ALL);
3174 	set_string_default("shm", (char_u *)"A");
3175     }
3176 
3177     /*
3178      * Find default value for 'shell' option.
3179      * Don't use it if it is empty.
3180      */
3181     if (((p = mch_getenv((char_u *)"SHELL")) != NULL && *p != NUL)
3182 #if defined(MSDOS) || defined(MSWIN)
3183 # ifdef __EMX__
3184 	    || ((p = mch_getenv((char_u *)"EMXSHELL")) != NULL && *p != NUL)
3185 # endif
3186 	    || ((p = mch_getenv((char_u *)"COMSPEC")) != NULL && *p != NUL)
3187 # ifdef WIN3264
3188 	    || ((p = default_shell()) != NULL && *p != NUL)
3189 # endif
3190 #endif
3191 	    )
3192 	set_string_default("sh", p);
3193 
3194 #ifdef FEAT_WILDIGN
3195     /*
3196      * Set the default for 'backupskip' to include environment variables for
3197      * temp files.
3198      */
3199     {
3200 # ifdef UNIX
3201 	static char	*(names[4]) = {"", "TMPDIR", "TEMP", "TMP"};
3202 # else
3203 	static char	*(names[3]) = {"TMPDIR", "TEMP", "TMP"};
3204 # endif
3205 	int		len;
3206 	garray_T	ga;
3207 	int		mustfree;
3208 
3209 	ga_init2(&ga, 1, 100);
3210 	for (n = 0; n < (long)(sizeof(names) / sizeof(char *)); ++n)
3211 	{
3212 	    mustfree = FALSE;
3213 # ifdef UNIX
3214 	    if (*names[n] == NUL)
3215 		p = (char_u *)"/tmp";
3216 	    else
3217 # endif
3218 		p = vim_getenv((char_u *)names[n], &mustfree);
3219 	    if (p != NULL && *p != NUL)
3220 	    {
3221 		/* First time count the NUL, otherwise count the ','. */
3222 		len = (int)STRLEN(p) + 3;
3223 		if (ga_grow(&ga, len) == OK)
3224 		{
3225 		    if (ga.ga_len > 0)
3226 			STRCAT(ga.ga_data, ",");
3227 		    STRCAT(ga.ga_data, p);
3228 		    add_pathsep(ga.ga_data);
3229 		    STRCAT(ga.ga_data, "*");
3230 		    ga.ga_len += len;
3231 		}
3232 	    }
3233 	    if (mustfree)
3234 		vim_free(p);
3235 	}
3236 	if (ga.ga_data != NULL)
3237 	{
3238 	    set_string_default("bsk", ga.ga_data);
3239 	    vim_free(ga.ga_data);
3240 	}
3241     }
3242 #endif
3243 
3244     /*
3245      * 'maxmemtot' and 'maxmem' may have to be adjusted for available memory
3246      */
3247     opt_idx = findoption((char_u *)"maxmemtot");
3248     if (opt_idx >= 0)
3249     {
3250 #if !defined(HAVE_AVAIL_MEM) && !defined(HAVE_TOTAL_MEM)
3251 	if (options[opt_idx].def_val[VI_DEFAULT] == (char_u *)0L)
3252 #endif
3253 	{
3254 #ifdef HAVE_AVAIL_MEM
3255 	    /* Use amount of memory available at this moment. */
3256 	    n = (mch_avail_mem(FALSE) >> 1);
3257 #else
3258 # ifdef HAVE_TOTAL_MEM
3259 	    /* Use amount of memory available to Vim. */
3260 	    n = (mch_total_mem(FALSE) >> 1);
3261 # else
3262 	    n = (0x7fffffff >> 11);
3263 # endif
3264 #endif
3265 	    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
3266 	    opt_idx = findoption((char_u *)"maxmem");
3267 	    if (opt_idx >= 0)
3268 	    {
3269 #if !defined(HAVE_AVAIL_MEM) && !defined(HAVE_TOTAL_MEM)
3270 		if ((long)(long_i)options[opt_idx].def_val[VI_DEFAULT] > (long)n
3271 		  || (long)(long_i)options[opt_idx].def_val[VI_DEFAULT] == 0L)
3272 #endif
3273 		    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
3274 	    }
3275 	}
3276     }
3277 
3278 #ifdef FEAT_GUI_W32
3279     /* force 'shortname' for Win32s */
3280     if (gui_is_win32s())
3281     {
3282 	opt_idx = findoption((char_u *)"shortname");
3283 	if (opt_idx >= 0)
3284 	    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)TRUE;
3285     }
3286 #endif
3287 
3288 #ifdef FEAT_SEARCHPATH
3289     {
3290 	char_u	*cdpath;
3291 	char_u	*buf;
3292 	int	i;
3293 	int	j;
3294 	int	mustfree = FALSE;
3295 
3296 	/* Initialize the 'cdpath' option's default value. */
3297 	cdpath = vim_getenv((char_u *)"CDPATH", &mustfree);
3298 	if (cdpath != NULL)
3299 	{
3300 	    buf = alloc((unsigned)((STRLEN(cdpath) << 1) + 2));
3301 	    if (buf != NULL)
3302 	    {
3303 		buf[0] = ',';	    /* start with ",", current dir first */
3304 		j = 1;
3305 		for (i = 0; cdpath[i] != NUL; ++i)
3306 		{
3307 		    if (vim_ispathlistsep(cdpath[i]))
3308 			buf[j++] = ',';
3309 		    else
3310 		    {
3311 			if (cdpath[i] == ' ' || cdpath[i] == ',')
3312 			    buf[j++] = '\\';
3313 			buf[j++] = cdpath[i];
3314 		    }
3315 		}
3316 		buf[j] = NUL;
3317 		opt_idx = findoption((char_u *)"cdpath");
3318 		if (opt_idx >= 0)
3319 		{
3320 		    options[opt_idx].def_val[VI_DEFAULT] = buf;
3321 		    options[opt_idx].flags |= P_DEF_ALLOCED;
3322 		}
3323 		else
3324 		    vim_free(buf); /* cannot happen */
3325 	    }
3326 	    if (mustfree)
3327 		vim_free(cdpath);
3328 	}
3329     }
3330 #endif
3331 
3332 #if defined(FEAT_POSTSCRIPT) && (defined(MSWIN) || defined(VMS) || defined(EBCDIC) || defined(MAC) || defined(hpux))
3333     /* Set print encoding on platforms that don't default to latin1 */
3334     set_string_default("penc",
3335 # if defined(MSWIN)
3336 		       (char_u *)"cp1252"
3337 # else
3338 #  ifdef VMS
3339 		       (char_u *)"dec-mcs"
3340 #  else
3341 #   ifdef EBCDIC
3342 		       (char_u *)"ebcdic-uk"
3343 #   else
3344 #    ifdef MAC
3345 		       (char_u *)"mac-roman"
3346 #    else /* HPUX */
3347 		       (char_u *)"hp-roman8"
3348 #    endif
3349 #   endif
3350 #  endif
3351 # endif
3352 		       );
3353 #endif
3354 
3355 #ifdef FEAT_POSTSCRIPT
3356     /* 'printexpr' must be allocated to be able to evaluate it. */
3357     set_string_default("pexpr",
3358 # if defined(MSWIN) || defined(MSDOS)
3359 	    (char_u *)"system('copy' . ' ' . v:fname_in . (&printdevice == '' ? ' LPT1:' : (' \"' . &printdevice . '\"'))) . delete(v:fname_in)"
3360 # else
3361 #  ifdef VMS
3362 	    (char_u *)"system('print/delete' . (&printdevice == '' ? '' : ' /queue=' . &printdevice) . ' ' . v:fname_in)"
3363 
3364 #  else
3365 	    (char_u *)"system('lpr' . (&printdevice == '' ? '' : ' -P' . &printdevice) . ' ' . v:fname_in) . delete(v:fname_in) + v:shell_error"
3366 #  endif
3367 # endif
3368 	    );
3369 #endif
3370 
3371     /*
3372      * Set all the options (except the terminal options) to their default
3373      * value.  Also set the global value for local options.
3374      */
3375     set_options_default(0);
3376 
3377 #ifdef FEAT_GUI
3378     if (found_reverse_arg)
3379 	set_option_value((char_u *)"bg", 0L, (char_u *)"dark", 0);
3380 #endif
3381 
3382     curbuf->b_p_initialized = TRUE;
3383     curbuf->b_p_ar = -1;	/* no local 'autoread' value */
3384     curbuf->b_p_ul = NO_LOCAL_UNDOLEVEL;
3385     check_buf_options(curbuf);
3386     check_win_options(curwin);
3387     check_options();
3388 
3389     /* Must be before option_expand(), because that one needs vim_isIDc() */
3390     didset_options();
3391 
3392 #ifdef FEAT_SPELL
3393     /* Use the current chartab for the generic chartab. This is not in
3394      * didset_options() because it only depends on 'encoding'. */
3395     init_spell_chartab();
3396 #endif
3397 
3398     /*
3399      * Expand environment variables and things like "~" for the defaults.
3400      * If option_expand() returns non-NULL the variable is expanded.  This can
3401      * only happen for non-indirect options.
3402      * Also set the default to the expanded value, so ":set" does not list
3403      * them.
3404      * Don't set the P_ALLOCED flag, because we don't want to free the
3405      * default.
3406      */
3407     for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
3408     {
3409 	if ((options[opt_idx].flags & P_GETTEXT)
3410 					      && options[opt_idx].var != NULL)
3411 	    p = (char_u *)_(*(char **)options[opt_idx].var);
3412 	else
3413 	    p = option_expand(opt_idx, NULL);
3414 	if (p != NULL && (p = vim_strsave(p)) != NULL)
3415 	{
3416 	    *(char_u **)options[opt_idx].var = p;
3417 	    /* VIMEXP
3418 	     * Defaults for all expanded options are currently the same for Vi
3419 	     * and Vim.  When this changes, add some code here!  Also need to
3420 	     * split P_DEF_ALLOCED in two.
3421 	     */
3422 	    if (options[opt_idx].flags & P_DEF_ALLOCED)
3423 		vim_free(options[opt_idx].def_val[VI_DEFAULT]);
3424 	    options[opt_idx].def_val[VI_DEFAULT] = p;
3425 	    options[opt_idx].flags |= P_DEF_ALLOCED;
3426 	}
3427     }
3428 
3429     save_file_ff(curbuf);	/* Buffer is unchanged */
3430 
3431 #if defined(FEAT_ARABIC)
3432     /* Detect use of mlterm.
3433      * Mlterm is a terminal emulator akin to xterm that has some special
3434      * abilities (bidi namely).
3435      * NOTE: mlterm's author is being asked to 'set' a variable
3436      *       instead of an environment variable due to inheritance.
3437      */
3438     if (mch_getenv((char_u *)"MLTERM") != NULL)
3439 	set_option_value((char_u *)"tbidi", 1L, NULL, 0);
3440 #endif
3441 
3442     didset_options2();
3443 
3444 #ifdef FEAT_MBYTE
3445 # if defined(WIN3264) && defined(FEAT_GETTEXT)
3446     /*
3447      * If $LANG isn't set, try to get a good value for it.  This makes the
3448      * right language be used automatically.  Don't do this for English.
3449      */
3450     if (mch_getenv((char_u *)"LANG") == NULL)
3451     {
3452 	char	buf[20];
3453 
3454 	/* Could use LOCALE_SISO639LANGNAME, but it's not in Win95.
3455 	 * LOCALE_SABBREVLANGNAME gives us three letters, like "enu", we use
3456 	 * only the first two. */
3457 	n = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_SABBREVLANGNAME,
3458 							     (LPTSTR)buf, 20);
3459 	if (n >= 2 && STRNICMP(buf, "en", 2) != 0)
3460 	{
3461 	    /* There are a few exceptions (probably more) */
3462 	    if (STRNICMP(buf, "cht", 3) == 0 || STRNICMP(buf, "zht", 3) == 0)
3463 		STRCPY(buf, "zh_TW");
3464 	    else if (STRNICMP(buf, "chs", 3) == 0
3465 					      || STRNICMP(buf, "zhc", 3) == 0)
3466 		STRCPY(buf, "zh_CN");
3467 	    else if (STRNICMP(buf, "jp", 2) == 0)
3468 		STRCPY(buf, "ja");
3469 	    else
3470 		buf[2] = NUL;		/* truncate to two-letter code */
3471 	    vim_setenv("LANG", buf);
3472 	}
3473     }
3474 # else
3475 #  ifdef MACOS_CONVERT
3476     /* Moved to os_mac_conv.c to avoid dependency problems. */
3477     mac_lang_init();
3478 #  endif
3479 # endif
3480 
3481     /* enc_locale() will try to find the encoding of the current locale. */
3482     p = enc_locale();
3483     if (p != NULL)
3484     {
3485 	char_u *save_enc;
3486 
3487 	/* Try setting 'encoding' and check if the value is valid.
3488 	 * If not, go back to the default "latin1". */
3489 	save_enc = p_enc;
3490 	p_enc = p;
3491 	if (STRCMP(p_enc, "gb18030") == 0)
3492 	{
3493 	    /* We don't support "gb18030", but "cp936" is a good substitute
3494 	     * for practical purposes, thus use that.  It's not an alias to
3495 	     * still support conversion between gb18030 and utf-8. */
3496 	    p_enc = vim_strsave((char_u *)"cp936");
3497 	    vim_free(p);
3498 	}
3499 	if (mb_init() == NULL)
3500 	{
3501 	    opt_idx = findoption((char_u *)"encoding");
3502 	    if (opt_idx >= 0)
3503 	    {
3504 		options[opt_idx].def_val[VI_DEFAULT] = p_enc;
3505 		options[opt_idx].flags |= P_DEF_ALLOCED;
3506 	    }
3507 
3508 #if defined(MSDOS) || defined(MSWIN) || defined(MACOS) \
3509 		|| defined(VMS)
3510 	    if (STRCMP(p_enc, "latin1") == 0
3511 # ifdef FEAT_MBYTE
3512 		    || enc_utf8
3513 # endif
3514 		    )
3515 	    {
3516 		/* Adjust the default for 'isprint' and 'iskeyword' to match
3517 		 * latin1.  Also set the defaults for when 'nocompatible' is
3518 		 * set. */
3519 		set_string_option_direct((char_u *)"isp", -1,
3520 					      ISP_LATIN1, OPT_FREE, SID_NONE);
3521 		set_string_option_direct((char_u *)"isk", -1,
3522 					      ISK_LATIN1, OPT_FREE, SID_NONE);
3523 		opt_idx = findoption((char_u *)"isp");
3524 		if (opt_idx >= 0)
3525 		    options[opt_idx].def_val[VIM_DEFAULT] = ISP_LATIN1;
3526 		opt_idx = findoption((char_u *)"isk");
3527 		if (opt_idx >= 0)
3528 		    options[opt_idx].def_val[VIM_DEFAULT] = ISK_LATIN1;
3529 		(void)init_chartab();
3530 	    }
3531 #endif
3532 
3533 # if defined(WIN3264) && !defined(FEAT_GUI)
3534 	    /* Win32 console: When GetACP() returns a different value from
3535 	     * GetConsoleCP() set 'termencoding'. */
3536 	    if (GetACP() != GetConsoleCP())
3537 	    {
3538 		char	buf[50];
3539 
3540 		sprintf(buf, "cp%ld", (long)GetConsoleCP());
3541 		p_tenc = vim_strsave((char_u *)buf);
3542 		if (p_tenc != NULL)
3543 		{
3544 		    opt_idx = findoption((char_u *)"termencoding");
3545 		    if (opt_idx >= 0)
3546 		    {
3547 			options[opt_idx].def_val[VI_DEFAULT] = p_tenc;
3548 			options[opt_idx].flags |= P_DEF_ALLOCED;
3549 		    }
3550 		    convert_setup(&input_conv, p_tenc, p_enc);
3551 		    convert_setup(&output_conv, p_enc, p_tenc);
3552 		}
3553 		else
3554 		    p_tenc = empty_option;
3555 	    }
3556 # endif
3557 # if defined(WIN3264) && defined(FEAT_MBYTE)
3558 	    /* $HOME may have characters in active code page. */
3559 	    init_homedir();
3560 # endif
3561 	}
3562 	else
3563 	{
3564 	    vim_free(p_enc);
3565 	    p_enc = save_enc;
3566 	}
3567     }
3568 #endif
3569 
3570 #ifdef FEAT_MULTI_LANG
3571     /* Set the default for 'helplang'. */
3572     set_helplang_default(get_mess_lang());
3573 #endif
3574 }
3575 
3576 /*
3577  * Set an option to its default value.
3578  * This does not take care of side effects!
3579  */
3580     static void
3581 set_option_default(opt_idx, opt_flags, compatible)
3582     int		opt_idx;
3583     int		opt_flags;	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
3584     int		compatible;	/* use Vi default value */
3585 {
3586     char_u	*varp;		/* pointer to variable for current option */
3587     int		dvi;		/* index in def_val[] */
3588     long_u	flags;
3589     long_u	*flagsp;
3590     int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
3591 
3592     varp = get_varp_scope(&(options[opt_idx]), both ? OPT_LOCAL : opt_flags);
3593     flags = options[opt_idx].flags;
3594     if (varp != NULL)	    /* skip hidden option, nothing to do for it */
3595     {
3596 	dvi = ((flags & P_VI_DEF) || compatible) ? VI_DEFAULT : VIM_DEFAULT;
3597 	if (flags & P_STRING)
3598 	{
3599 	    /* Use set_string_option_direct() for local options to handle
3600 	     * freeing and allocating the value. */
3601 	    if (options[opt_idx].indir != PV_NONE)
3602 		set_string_option_direct(NULL, opt_idx,
3603 				 options[opt_idx].def_val[dvi], opt_flags, 0);
3604 	    else
3605 	    {
3606 		if ((opt_flags & OPT_FREE) && (flags & P_ALLOCED))
3607 		    free_string_option(*(char_u **)(varp));
3608 		*(char_u **)varp = options[opt_idx].def_val[dvi];
3609 		options[opt_idx].flags &= ~P_ALLOCED;
3610 	    }
3611 	}
3612 	else if (flags & P_NUM)
3613 	{
3614 	    if (options[opt_idx].indir == PV_SCROLL)
3615 		win_comp_scroll(curwin);
3616 	    else
3617 	    {
3618 		*(long *)varp = (long)(long_i)options[opt_idx].def_val[dvi];
3619 		/* May also set global value for local option. */
3620 		if (both)
3621 		    *(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
3622 								*(long *)varp;
3623 	    }
3624 	}
3625 	else	/* P_BOOL */
3626 	{
3627 	    /* the cast to long is required for Manx C, long_i is needed for
3628 	     * MSVC */
3629 	    *(int *)varp = (int)(long)(long_i)options[opt_idx].def_val[dvi];
3630 #ifdef UNIX
3631 	    /* 'modeline' defaults to off for root */
3632 	    if (options[opt_idx].indir == PV_ML && getuid() == ROOT_UID)
3633 		*(int *)varp = FALSE;
3634 #endif
3635 	    /* May also set global value for local option. */
3636 	    if (both)
3637 		*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
3638 								*(int *)varp;
3639 	}
3640 
3641 	/* The default value is not insecure. */
3642 	flagsp = insecure_flag(opt_idx, opt_flags);
3643 	*flagsp = *flagsp & ~P_INSECURE;
3644     }
3645 
3646 #ifdef FEAT_EVAL
3647     set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
3648 #endif
3649 }
3650 
3651 /*
3652  * Set all options (except terminal options) to their default value.
3653  * When "opt_flags" is non-zero skip 'encoding'.
3654  */
3655     static void
3656 set_options_default(opt_flags)
3657     int		opt_flags;	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
3658 {
3659     int		i;
3660 #ifdef FEAT_WINDOWS
3661     win_T	*wp;
3662     tabpage_T	*tp;
3663 #endif
3664 
3665     for (i = 0; !istermoption(&options[i]); i++)
3666 	if (!(options[i].flags & P_NODEFAULT)
3667 #if defined(FEAT_MBYTE) || defined(FEAT_CRYPT)
3668 		&& (opt_flags == 0
3669 		    || (TRUE
3670 # if defined(FEAT_MBYTE)
3671 			&& options[i].var != (char_u *)&p_enc
3672 # endif
3673 # if defined(FEAT_CRYPT)
3674 			&& options[i].var != (char_u *)&p_cm
3675 			&& options[i].var != (char_u *)&p_key
3676 # endif
3677 			))
3678 #endif
3679 			)
3680 	    set_option_default(i, opt_flags, p_cp);
3681 
3682 #ifdef FEAT_WINDOWS
3683     /* The 'scroll' option must be computed for all windows. */
3684     FOR_ALL_TAB_WINDOWS(tp, wp)
3685 	win_comp_scroll(wp);
3686 #else
3687 	win_comp_scroll(curwin);
3688 #endif
3689 #ifdef FEAT_CINDENT
3690     parse_cino(curbuf);
3691 #endif
3692 }
3693 
3694 /*
3695  * Set the Vi-default value of a string option.
3696  * Used for 'sh', 'backupskip' and 'term'.
3697  */
3698     void
3699 set_string_default(name, val)
3700     char	*name;
3701     char_u	*val;
3702 {
3703     char_u	*p;
3704     int		opt_idx;
3705 
3706     p = vim_strsave(val);
3707     if (p != NULL)		/* we don't want a NULL */
3708     {
3709 	opt_idx = findoption((char_u *)name);
3710 	if (opt_idx >= 0)
3711 	{
3712 	    if (options[opt_idx].flags & P_DEF_ALLOCED)
3713 		vim_free(options[opt_idx].def_val[VI_DEFAULT]);
3714 	    options[opt_idx].def_val[VI_DEFAULT] = p;
3715 	    options[opt_idx].flags |= P_DEF_ALLOCED;
3716 	}
3717     }
3718 }
3719 
3720 /*
3721  * Set the Vi-default value of a number option.
3722  * Used for 'lines' and 'columns'.
3723  */
3724     void
3725 set_number_default(name, val)
3726     char	*name;
3727     long	val;
3728 {
3729     int		opt_idx;
3730 
3731     opt_idx = findoption((char_u *)name);
3732     if (opt_idx >= 0)
3733 	options[opt_idx].def_val[VI_DEFAULT] = (char_u *)(long_i)val;
3734 }
3735 
3736 #if defined(EXITFREE) || defined(PROTO)
3737 /*
3738  * Free all options.
3739  */
3740     void
3741 free_all_options()
3742 {
3743     int		i;
3744 
3745     for (i = 0; !istermoption(&options[i]); i++)
3746     {
3747 	if (options[i].indir == PV_NONE)
3748 	{
3749 	    /* global option: free value and default value. */
3750 	    if (options[i].flags & P_ALLOCED && options[i].var != NULL)
3751 		free_string_option(*(char_u **)options[i].var);
3752 	    if (options[i].flags & P_DEF_ALLOCED)
3753 		free_string_option(options[i].def_val[VI_DEFAULT]);
3754 	}
3755 	else if (options[i].var != VAR_WIN
3756 		&& (options[i].flags & P_STRING))
3757 	    /* buffer-local option: free global value */
3758 	    free_string_option(*(char_u **)options[i].var);
3759     }
3760 }
3761 #endif
3762 
3763 
3764 /*
3765  * Initialize the options, part two: After getting Rows and Columns and
3766  * setting 'term'.
3767  */
3768     void
3769 set_init_2()
3770 {
3771     int		idx;
3772 
3773     /*
3774      * 'scroll' defaults to half the window height. Note that this default is
3775      * wrong when the window height changes.
3776      */
3777     set_number_default("scroll", (long)((long_u)Rows >> 1));
3778     idx = findoption((char_u *)"scroll");
3779     if (idx >= 0 && !(options[idx].flags & P_WAS_SET))
3780 	set_option_default(idx, OPT_LOCAL, p_cp);
3781     comp_col();
3782 
3783     /*
3784      * 'window' is only for backwards compatibility with Vi.
3785      * Default is Rows - 1.
3786      */
3787     if (!option_was_set((char_u *)"window"))
3788 	p_window = Rows - 1;
3789     set_number_default("window", Rows - 1);
3790 
3791     /* For DOS console the default is always black. */
3792 #if !((defined(MSDOS) || defined(WIN3264)) && !defined(FEAT_GUI))
3793     /*
3794      * If 'background' wasn't set by the user, try guessing the value,
3795      * depending on the terminal name.  Only need to check for terminals
3796      * with a dark background, that can handle color.
3797      */
3798     idx = findoption((char_u *)"bg");
3799     if (idx >= 0 && !(options[idx].flags & P_WAS_SET)
3800 						 && *term_bg_default() == 'd')
3801     {
3802 	set_string_option_direct(NULL, idx, (char_u *)"dark", OPT_FREE, 0);
3803 	/* don't mark it as set, when starting the GUI it may be
3804 	 * changed again */
3805 	options[idx].flags &= ~P_WAS_SET;
3806     }
3807 #endif
3808 
3809 #ifdef CURSOR_SHAPE
3810     parse_shape_opt(SHAPE_CURSOR); /* set cursor shapes from 'guicursor' */
3811 #endif
3812 #ifdef FEAT_MOUSESHAPE
3813     parse_shape_opt(SHAPE_MOUSE);  /* set mouse shapes from 'mouseshape' */
3814 #endif
3815 #ifdef FEAT_PRINTER
3816     (void)parse_printoptions();	    /* parse 'printoptions' default value */
3817 #endif
3818 }
3819 
3820 /*
3821  * Return "dark" or "light" depending on the kind of terminal.
3822  * This is just guessing!  Recognized are:
3823  * "linux"	    Linux console
3824  * "screen.linux"   Linux console with screen
3825  * "cygwin"	    Cygwin shell
3826  * "putty"	    Putty program
3827  * We also check the COLORFGBG environment variable, which is set by
3828  * rxvt and derivatives. This variable contains either two or three
3829  * values separated by semicolons; we want the last value in either
3830  * case. If this value is 0-6 or 8, our background is dark.
3831  */
3832     static char_u *
3833 term_bg_default()
3834 {
3835 #if defined(MSDOS) || defined(WIN3264)
3836     /* DOS console nearly always black */
3837     return (char_u *)"dark";
3838 #else
3839     char_u	*p;
3840 
3841     if (STRCMP(T_NAME, "linux") == 0
3842 	    || STRCMP(T_NAME, "screen.linux") == 0
3843 	    || STRCMP(T_NAME, "cygwin") == 0
3844 	    || STRCMP(T_NAME, "putty") == 0
3845 	    || ((p = mch_getenv((char_u *)"COLORFGBG")) != NULL
3846 		&& (p = vim_strrchr(p, ';')) != NULL
3847 		&& ((p[1] >= '0' && p[1] <= '6') || p[1] == '8')
3848 		&& p[2] == NUL))
3849 	return (char_u *)"dark";
3850     return (char_u *)"light";
3851 #endif
3852 }
3853 
3854 /*
3855  * Initialize the options, part three: After reading the .vimrc
3856  */
3857     void
3858 set_init_3()
3859 {
3860 #if defined(UNIX) || defined(WIN3264)
3861 /*
3862  * Set 'shellpipe' and 'shellredir', depending on the 'shell' option.
3863  * This is done after other initializations, where 'shell' might have been
3864  * set, but only if they have not been set before.
3865  */
3866     char_u  *p;
3867     int	    idx_srr;
3868     int	    do_srr;
3869 # ifdef FEAT_QUICKFIX
3870     int	    idx_sp;
3871     int	    do_sp;
3872 # endif
3873 
3874     idx_srr = findoption((char_u *)"srr");
3875     if (idx_srr < 0)
3876 	do_srr = FALSE;
3877     else
3878 	do_srr = !(options[idx_srr].flags & P_WAS_SET);
3879 # ifdef FEAT_QUICKFIX
3880     idx_sp = findoption((char_u *)"sp");
3881     if (idx_sp < 0)
3882 	do_sp = FALSE;
3883     else
3884 	do_sp = !(options[idx_sp].flags & P_WAS_SET);
3885 # endif
3886     p = get_isolated_shell_name();
3887     if (p != NULL)
3888     {
3889 	/*
3890 	 * Default for p_sp is "| tee", for p_srr is ">".
3891 	 * For known shells it is changed here to include stderr.
3892 	 */
3893 	if (	   fnamecmp(p, "csh") == 0
3894 		|| fnamecmp(p, "tcsh") == 0
3895 # if defined(WIN3264)	/* also check with .exe extension */
3896 		|| fnamecmp(p, "csh.exe") == 0
3897 		|| fnamecmp(p, "tcsh.exe") == 0
3898 # endif
3899 	   )
3900 	{
3901 # if defined(FEAT_QUICKFIX)
3902 	    if (do_sp)
3903 	    {
3904 #  ifdef WIN3264
3905 		p_sp = (char_u *)">&";
3906 #  else
3907 		p_sp = (char_u *)"|& tee";
3908 #  endif
3909 		options[idx_sp].def_val[VI_DEFAULT] = p_sp;
3910 	    }
3911 # endif
3912 	    if (do_srr)
3913 	    {
3914 		p_srr = (char_u *)">&";
3915 		options[idx_srr].def_val[VI_DEFAULT] = p_srr;
3916 	    }
3917 	}
3918 	else
3919 	    /* Always use bourne shell style redirection if we reach this */
3920 	    if (       fnamecmp(p, "sh") == 0
3921 		    || fnamecmp(p, "ksh") == 0
3922 		    || fnamecmp(p, "mksh") == 0
3923 		    || fnamecmp(p, "pdksh") == 0
3924 		    || fnamecmp(p, "zsh") == 0
3925 		    || fnamecmp(p, "zsh-beta") == 0
3926 		    || fnamecmp(p, "bash") == 0
3927 		    || fnamecmp(p, "fish") == 0
3928 # ifdef WIN3264
3929 		    || fnamecmp(p, "cmd") == 0
3930 		    || fnamecmp(p, "sh.exe") == 0
3931 		    || fnamecmp(p, "ksh.exe") == 0
3932 		    || fnamecmp(p, "mksh.exe") == 0
3933 		    || fnamecmp(p, "pdksh.exe") == 0
3934 		    || fnamecmp(p, "zsh.exe") == 0
3935 		    || fnamecmp(p, "zsh-beta.exe") == 0
3936 		    || fnamecmp(p, "bash.exe") == 0
3937 		    || fnamecmp(p, "cmd.exe") == 0
3938 # endif
3939 		    )
3940 	    {
3941 # if defined(FEAT_QUICKFIX)
3942 		if (do_sp)
3943 		{
3944 #  ifdef WIN3264
3945 		    p_sp = (char_u *)">%s 2>&1";
3946 #  else
3947 		    p_sp = (char_u *)"2>&1| tee";
3948 #  endif
3949 		    options[idx_sp].def_val[VI_DEFAULT] = p_sp;
3950 		}
3951 # endif
3952 		if (do_srr)
3953 		{
3954 		    p_srr = (char_u *)">%s 2>&1";
3955 		    options[idx_srr].def_val[VI_DEFAULT] = p_srr;
3956 		}
3957 	    }
3958 	vim_free(p);
3959     }
3960 #endif
3961 
3962 #if defined(MSDOS) || defined(WIN3264)
3963     /*
3964      * Set 'shellcmdflag', 'shellxquote', and 'shellquote' depending on the
3965      * 'shell' option.
3966      * This is done after other initializations, where 'shell' might have been
3967      * set, but only if they have not been set before.  Default for p_shcf is
3968      * "/c", for p_shq is "".  For "sh" like  shells it is changed here to
3969      * "-c" and "\"", but not for DJGPP, because it starts the shell without
3970      * command.com.  And for Win32 we need to set p_sxq instead.
3971      */
3972     if (strstr((char *)gettail(p_sh), "sh") != NULL)
3973     {
3974 	int	idx3;
3975 
3976 	idx3 = findoption((char_u *)"shcf");
3977 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
3978 	{
3979 	    p_shcf = (char_u *)"-c";
3980 	    options[idx3].def_val[VI_DEFAULT] = p_shcf;
3981 	}
3982 
3983 # ifndef DJGPP
3984 #  ifdef WIN3264
3985 	/* Somehow Win32 requires the quotes around the redirection too */
3986 	idx3 = findoption((char_u *)"sxq");
3987 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
3988 	{
3989 	    p_sxq = (char_u *)"\"";
3990 	    options[idx3].def_val[VI_DEFAULT] = p_sxq;
3991 	}
3992 #  else
3993 	idx3 = findoption((char_u *)"shq");
3994 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
3995 	{
3996 	    p_shq = (char_u *)"\"";
3997 	    options[idx3].def_val[VI_DEFAULT] = p_shq;
3998 	}
3999 #  endif
4000 # endif
4001     }
4002     else if (strstr((char *)gettail(p_sh), "cmd.exe") != NULL)
4003     {
4004 	int	idx3;
4005 
4006 	/*
4007 	 * cmd.exe on Windows will strip the first and last double quote given
4008 	 * on the command line, e.g. most of the time things like:
4009 	 *   cmd /c "my path/to/echo" "my args to echo"
4010 	 * become:
4011 	 *   my path/to/echo" "my args to echo
4012 	 * when executed.
4013 	 *
4014 	 * To avoid this, set shellxquote to surround the command in
4015 	 * parenthesis.  This appears to make most commands work, without
4016 	 * breaking commands that worked previously, such as
4017 	 * '"path with spaces/cmd" "a&b"'.
4018 	 */
4019 	idx3 = findoption((char_u *)"sxq");
4020 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
4021 	{
4022 	    p_sxq = (char_u *)"(";
4023 	    options[idx3].def_val[VI_DEFAULT] = p_sxq;
4024 	}
4025 
4026 	idx3 = findoption((char_u *)"shcf");
4027 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
4028 	{
4029 	    p_shcf = (char_u *)"/c";
4030 	    options[idx3].def_val[VI_DEFAULT] = p_shcf;
4031 	}
4032     }
4033 #endif
4034 
4035 #ifdef FEAT_TITLE
4036     set_title_defaults();
4037 #endif
4038 }
4039 
4040 #if defined(FEAT_MULTI_LANG) || defined(PROTO)
4041 /*
4042  * When 'helplang' is still at its default value, set it to "lang".
4043  * Only the first two characters of "lang" are used.
4044  */
4045     void
4046 set_helplang_default(lang)
4047     char_u	*lang;
4048 {
4049     int		idx;
4050 
4051     if (lang == NULL || STRLEN(lang) < 2)	/* safety check */
4052 	return;
4053     idx = findoption((char_u *)"hlg");
4054     if (idx >= 0 && !(options[idx].flags & P_WAS_SET))
4055     {
4056 	if (options[idx].flags & P_ALLOCED)
4057 	    free_string_option(p_hlg);
4058 	p_hlg = vim_strsave(lang);
4059 	if (p_hlg == NULL)
4060 	    p_hlg = empty_option;
4061 	else
4062 	{
4063 	    /* zh_CN becomes "cn", zh_TW becomes "tw". */
4064 	    if (STRNICMP(p_hlg, "zh_", 3) == 0 && STRLEN(p_hlg) >= 5)
4065 	    {
4066 		p_hlg[0] = TOLOWER_ASC(p_hlg[3]);
4067 		p_hlg[1] = TOLOWER_ASC(p_hlg[4]);
4068 	    }
4069 	    p_hlg[2] = NUL;
4070 	}
4071 	options[idx].flags |= P_ALLOCED;
4072     }
4073 }
4074 #endif
4075 
4076 #ifdef FEAT_GUI
4077 static char_u *gui_bg_default __ARGS((void));
4078 
4079     static char_u *
4080 gui_bg_default()
4081 {
4082     if (gui_get_lightness(gui.back_pixel) < 127)
4083 	return (char_u *)"dark";
4084     return (char_u *)"light";
4085 }
4086 
4087 /*
4088  * Option initializations that can only be done after opening the GUI window.
4089  */
4090     void
4091 init_gui_options()
4092 {
4093     /* Set the 'background' option according to the lightness of the
4094      * background color, unless the user has set it already. */
4095     if (!option_was_set((char_u *)"bg") && STRCMP(p_bg, gui_bg_default()) != 0)
4096     {
4097 	set_option_value((char_u *)"bg", 0L, gui_bg_default(), 0);
4098 	highlight_changed();
4099     }
4100 }
4101 #endif
4102 
4103 #ifdef FEAT_TITLE
4104 /*
4105  * 'title' and 'icon' only default to true if they have not been set or reset
4106  * in .vimrc and we can read the old value.
4107  * When 'title' and 'icon' have been reset in .vimrc, we won't even check if
4108  * they can be reset.  This reduces startup time when using X on a remote
4109  * machine.
4110  */
4111     void
4112 set_title_defaults()
4113 {
4114     int	    idx1;
4115     long    val;
4116 
4117     /*
4118      * If GUI is (going to be) used, we can always set the window title and
4119      * icon name.  Saves a bit of time, because the X11 display server does
4120      * not need to be contacted.
4121      */
4122     idx1 = findoption((char_u *)"title");
4123     if (idx1 >= 0 && !(options[idx1].flags & P_WAS_SET))
4124     {
4125 #ifdef FEAT_GUI
4126 	if (gui.starting || gui.in_use)
4127 	    val = TRUE;
4128 	else
4129 #endif
4130 	    val = mch_can_restore_title();
4131 	options[idx1].def_val[VI_DEFAULT] = (char_u *)(long_i)val;
4132 	p_title = val;
4133     }
4134     idx1 = findoption((char_u *)"icon");
4135     if (idx1 >= 0 && !(options[idx1].flags & P_WAS_SET))
4136     {
4137 #ifdef FEAT_GUI
4138 	if (gui.starting || gui.in_use)
4139 	    val = TRUE;
4140 	else
4141 #endif
4142 	    val = mch_can_restore_icon();
4143 	options[idx1].def_val[VI_DEFAULT] = (char_u *)(long_i)val;
4144 	p_icon = val;
4145     }
4146 }
4147 #endif
4148 
4149 /*
4150  * Parse 'arg' for option settings.
4151  *
4152  * 'arg' may be IObuff, but only when no errors can be present and option
4153  * does not need to be expanded with option_expand().
4154  * "opt_flags":
4155  * 0 for ":set"
4156  * OPT_GLOBAL   for ":setglobal"
4157  * OPT_LOCAL    for ":setlocal" and a modeline
4158  * OPT_MODELINE for a modeline
4159  * OPT_WINONLY  to only set window-local options
4160  * OPT_NOWIN	to skip setting window-local options
4161  *
4162  * returns FAIL if an error is detected, OK otherwise
4163  */
4164     int
4165 do_set(arg, opt_flags)
4166     char_u	*arg;		/* option string (may be written to!) */
4167     int		opt_flags;
4168 {
4169     int		opt_idx;
4170     char_u	*errmsg;
4171     char_u	errbuf[80];
4172     char_u	*startarg;
4173     int		prefix;	/* 1: nothing, 0: "no", 2: "inv" in front of name */
4174     int		nextchar;	    /* next non-white char after option name */
4175     int		afterchar;	    /* character just after option name */
4176     int		len;
4177     int		i;
4178     long	value;
4179     int		key;
4180     long_u	flags;		    /* flags for current option */
4181     char_u	*varp = NULL;	    /* pointer to variable for current option */
4182     int		did_show = FALSE;   /* already showed one value */
4183     int		adding;		    /* "opt+=arg" */
4184     int		prepending;	    /* "opt^=arg" */
4185     int		removing;	    /* "opt-=arg" */
4186     int		cp_val = 0;
4187     char_u	key_name[2];
4188 
4189     if (*arg == NUL)
4190     {
4191 	showoptions(0, opt_flags);
4192 	did_show = TRUE;
4193 	goto theend;
4194     }
4195 
4196     while (*arg != NUL)		/* loop to process all options */
4197     {
4198 	errmsg = NULL;
4199 	startarg = arg;		/* remember for error message */
4200 
4201 	if (STRNCMP(arg, "all", 3) == 0 && !isalpha(arg[3])
4202 						&& !(opt_flags & OPT_MODELINE))
4203 	{
4204 	    /*
4205 	     * ":set all"  show all options.
4206 	     * ":set all&" set all options to their default value.
4207 	     */
4208 	    arg += 3;
4209 	    if (*arg == '&')
4210 	    {
4211 		++arg;
4212 		/* Only for :set command set global value of local options. */
4213 		set_options_default(OPT_FREE | opt_flags);
4214 		didset_options();
4215 		didset_options2();
4216 		redraw_all_later(CLEAR);
4217 	    }
4218 	    else
4219 	    {
4220 		showoptions(1, opt_flags);
4221 		did_show = TRUE;
4222 	    }
4223 	}
4224 	else if (STRNCMP(arg, "termcap", 7) == 0 && !(opt_flags & OPT_MODELINE))
4225 	{
4226 	    showoptions(2, opt_flags);
4227 	    show_termcodes();
4228 	    did_show = TRUE;
4229 	    arg += 7;
4230 	}
4231 	else
4232 	{
4233 	    prefix = 1;
4234 	    if (STRNCMP(arg, "no", 2) == 0 && STRNCMP(arg, "novice", 6) != 0)
4235 	    {
4236 		prefix = 0;
4237 		arg += 2;
4238 	    }
4239 	    else if (STRNCMP(arg, "inv", 3) == 0)
4240 	    {
4241 		prefix = 2;
4242 		arg += 3;
4243 	    }
4244 
4245 	    /* find end of name */
4246 	    key = 0;
4247 	    if (*arg == '<')
4248 	    {
4249 		nextchar = 0;
4250 		opt_idx = -1;
4251 		/* look out for <t_>;> */
4252 		if (arg[1] == 't' && arg[2] == '_' && arg[3] && arg[4])
4253 		    len = 5;
4254 		else
4255 		{
4256 		    len = 1;
4257 		    while (arg[len] != NUL && arg[len] != '>')
4258 			++len;
4259 		}
4260 		if (arg[len] != '>')
4261 		{
4262 		    errmsg = e_invarg;
4263 		    goto skip;
4264 		}
4265 		arg[len] = NUL;			    /* put NUL after name */
4266 		if (arg[1] == 't' && arg[2] == '_') /* could be term code */
4267 		    opt_idx = findoption(arg + 1);
4268 		arg[len++] = '>';		    /* restore '>' */
4269 		if (opt_idx == -1)
4270 		    key = find_key_option(arg + 1);
4271 	    }
4272 	    else
4273 	    {
4274 		len = 0;
4275 		/*
4276 		 * The two characters after "t_" may not be alphanumeric.
4277 		 */
4278 		if (arg[0] == 't' && arg[1] == '_' && arg[2] && arg[3])
4279 		    len = 4;
4280 		else
4281 		    while (ASCII_ISALNUM(arg[len]) || arg[len] == '_')
4282 			++len;
4283 		nextchar = arg[len];
4284 		arg[len] = NUL;			    /* put NUL after name */
4285 		opt_idx = findoption(arg);
4286 		arg[len] = nextchar;		    /* restore nextchar */
4287 		if (opt_idx == -1)
4288 		    key = find_key_option(arg);
4289 	    }
4290 
4291 	    /* remember character after option name */
4292 	    afterchar = arg[len];
4293 
4294 	    /* skip white space, allow ":set ai  ?" */
4295 	    while (vim_iswhite(arg[len]))
4296 		++len;
4297 
4298 	    adding = FALSE;
4299 	    prepending = FALSE;
4300 	    removing = FALSE;
4301 	    if (arg[len] != NUL && arg[len + 1] == '=')
4302 	    {
4303 		if (arg[len] == '+')
4304 		{
4305 		    adding = TRUE;		/* "+=" */
4306 		    ++len;
4307 		}
4308 		else if (arg[len] == '^')
4309 		{
4310 		    prepending = TRUE;		/* "^=" */
4311 		    ++len;
4312 		}
4313 		else if (arg[len] == '-')
4314 		{
4315 		    removing = TRUE;		/* "-=" */
4316 		    ++len;
4317 		}
4318 	    }
4319 	    nextchar = arg[len];
4320 
4321 	    if (opt_idx == -1 && key == 0)	/* found a mismatch: skip */
4322 	    {
4323 		errmsg = (char_u *)N_("E518: Unknown option");
4324 		goto skip;
4325 	    }
4326 
4327 	    if (opt_idx >= 0)
4328 	    {
4329 		if (options[opt_idx].var == NULL)   /* hidden option: skip */
4330 		{
4331 		    /* Only give an error message when requesting the value of
4332 		     * a hidden option, ignore setting it. */
4333 		    if (vim_strchr((char_u *)"=:!&<", nextchar) == NULL
4334 			    && (!(options[opt_idx].flags & P_BOOL)
4335 				|| nextchar == '?'))
4336 			errmsg = (char_u *)N_("E519: Option not supported");
4337 		    goto skip;
4338 		}
4339 
4340 		flags = options[opt_idx].flags;
4341 		varp = get_varp_scope(&(options[opt_idx]), opt_flags);
4342 	    }
4343 	    else
4344 	    {
4345 		flags = P_STRING;
4346 		if (key < 0)
4347 		{
4348 		    key_name[0] = KEY2TERMCAP0(key);
4349 		    key_name[1] = KEY2TERMCAP1(key);
4350 		}
4351 		else
4352 		{
4353 		    key_name[0] = KS_KEY;
4354 		    key_name[1] = (key & 0xff);
4355 		}
4356 	    }
4357 
4358 	    /* Skip all options that are not window-local (used when showing
4359 	     * an already loaded buffer in a window). */
4360 	    if ((opt_flags & OPT_WINONLY)
4361 			  && (opt_idx < 0 || options[opt_idx].var != VAR_WIN))
4362 		goto skip;
4363 
4364 	    /* Skip all options that are window-local (used for :vimgrep). */
4365 	    if ((opt_flags & OPT_NOWIN) && opt_idx >= 0
4366 					   && options[opt_idx].var == VAR_WIN)
4367 		goto skip;
4368 
4369 	    /* Disallow changing some options from modelines. */
4370 	    if (opt_flags & OPT_MODELINE)
4371 	    {
4372 		if (flags & (P_SECURE | P_NO_ML))
4373 		{
4374 		    errmsg = (char_u *)_("E520: Not allowed in a modeline");
4375 		    goto skip;
4376 		}
4377 #ifdef FEAT_DIFF
4378 		/* In diff mode some options are overruled.  This avoids that
4379 		 * 'foldmethod' becomes "marker" instead of "diff" and that
4380 		 * "wrap" gets set. */
4381 		if (curwin->w_p_diff
4382 			&& opt_idx >= 0  /* shut up coverity warning */
4383 			&& (options[opt_idx].indir == PV_FDM
4384 			    || options[opt_idx].indir == PV_WRAP))
4385 		    goto skip;
4386 #endif
4387 	    }
4388 
4389 #ifdef HAVE_SANDBOX
4390 	    /* Disallow changing some options in the sandbox */
4391 	    if (sandbox != 0 && (flags & P_SECURE))
4392 	    {
4393 		errmsg = (char_u *)_(e_sandbox);
4394 		goto skip;
4395 	    }
4396 #endif
4397 
4398 	    if (vim_strchr((char_u *)"?=:!&<", nextchar) != NULL)
4399 	    {
4400 		arg += len;
4401 		cp_val = p_cp;
4402 		if (nextchar == '&' && arg[1] == 'v' && arg[2] == 'i')
4403 		{
4404 		    if (arg[3] == 'm')	/* "opt&vim": set to Vim default */
4405 		    {
4406 			cp_val = FALSE;
4407 			arg += 3;
4408 		    }
4409 		    else		/* "opt&vi": set to Vi default */
4410 		    {
4411 			cp_val = TRUE;
4412 			arg += 2;
4413 		    }
4414 		}
4415 		if (vim_strchr((char_u *)"?!&<", nextchar) != NULL
4416 			&& arg[1] != NUL && !vim_iswhite(arg[1]))
4417 		{
4418 		    errmsg = e_trailing;
4419 		    goto skip;
4420 		}
4421 	    }
4422 
4423 	    /*
4424 	     * allow '=' and ':' as MSDOS command.com allows only one
4425 	     * '=' character per "set" command line. grrr. (jw)
4426 	     */
4427 	    if (nextchar == '?'
4428 		    || (prefix == 1
4429 			&& vim_strchr((char_u *)"=:&<", nextchar) == NULL
4430 			&& !(flags & P_BOOL)))
4431 	    {
4432 		/*
4433 		 * print value
4434 		 */
4435 		if (did_show)
4436 		    msg_putchar('\n');	    /* cursor below last one */
4437 		else
4438 		{
4439 		    gotocmdline(TRUE);	    /* cursor at status line */
4440 		    did_show = TRUE;	    /* remember that we did a line */
4441 		}
4442 		if (opt_idx >= 0)
4443 		{
4444 		    showoneopt(&options[opt_idx], opt_flags);
4445 #ifdef FEAT_EVAL
4446 		    if (p_verbose > 0)
4447 		    {
4448 			/* Mention where the option was last set. */
4449 			if (varp == options[opt_idx].var)
4450 			    last_set_msg(options[opt_idx].scriptID);
4451 			else if ((int)options[opt_idx].indir & PV_WIN)
4452 			    last_set_msg(curwin->w_p_scriptID[
4453 				      (int)options[opt_idx].indir & PV_MASK]);
4454 			else if ((int)options[opt_idx].indir & PV_BUF)
4455 			    last_set_msg(curbuf->b_p_scriptID[
4456 				      (int)options[opt_idx].indir & PV_MASK]);
4457 		    }
4458 #endif
4459 		}
4460 		else
4461 		{
4462 		    char_u	    *p;
4463 
4464 		    p = find_termcode(key_name);
4465 		    if (p == NULL)
4466 		    {
4467 			errmsg = (char_u *)N_("E846: Key code not set");
4468 			goto skip;
4469 		    }
4470 		    else
4471 			(void)show_one_termcode(key_name, p, TRUE);
4472 		}
4473 		if (nextchar != '?'
4474 			&& nextchar != NUL && !vim_iswhite(afterchar))
4475 		    errmsg = e_trailing;
4476 	    }
4477 	    else
4478 	    {
4479 		if (flags & P_BOOL)		    /* boolean */
4480 		{
4481 		    if (nextchar == '=' || nextchar == ':')
4482 		    {
4483 			errmsg = e_invarg;
4484 			goto skip;
4485 		    }
4486 
4487 		    /*
4488 		     * ":set opt!": invert
4489 		     * ":set opt&": reset to default value
4490 		     * ":set opt<": reset to global value
4491 		     */
4492 		    if (nextchar == '!')
4493 			value = *(int *)(varp) ^ 1;
4494 		    else if (nextchar == '&')
4495 			value = (int)(long)(long_i)options[opt_idx].def_val[
4496 						((flags & P_VI_DEF) || cp_val)
4497 						 ?  VI_DEFAULT : VIM_DEFAULT];
4498 		    else if (nextchar == '<')
4499 		    {
4500 			/* For 'autoread' -1 means to use global value. */
4501 			if ((int *)varp == &curbuf->b_p_ar
4502 						    && opt_flags == OPT_LOCAL)
4503 			    value = -1;
4504 			else
4505 			    value = *(int *)get_varp_scope(&(options[opt_idx]),
4506 								  OPT_GLOBAL);
4507 		    }
4508 		    else
4509 		    {
4510 			/*
4511 			 * ":set invopt": invert
4512 			 * ":set opt" or ":set noopt": set or reset
4513 			 */
4514 			if (nextchar != NUL && !vim_iswhite(afterchar))
4515 			{
4516 			    errmsg = e_trailing;
4517 			    goto skip;
4518 			}
4519 			if (prefix == 2)	/* inv */
4520 			    value = *(int *)(varp) ^ 1;
4521 			else
4522 			    value = prefix;
4523 		    }
4524 
4525 		    errmsg = set_bool_option(opt_idx, varp, (int)value,
4526 								   opt_flags);
4527 		}
4528 		else				    /* numeric or string */
4529 		{
4530 		    if (vim_strchr((char_u *)"=:&<", nextchar) == NULL
4531 							       || prefix != 1)
4532 		    {
4533 			errmsg = e_invarg;
4534 			goto skip;
4535 		    }
4536 
4537 		    if (flags & P_NUM)		    /* numeric */
4538 		    {
4539 			/*
4540 			 * Different ways to set a number option:
4541 			 * &	    set to default value
4542 			 * <	    set to global value
4543 			 * <xx>	    accept special key codes for 'wildchar'
4544 			 * c	    accept any non-digit for 'wildchar'
4545 			 * [-]0-9   set number
4546 			 * other    error
4547 			 */
4548 			++arg;
4549 			if (nextchar == '&')
4550 			    value = (long)(long_i)options[opt_idx].def_val[
4551 						((flags & P_VI_DEF) || cp_val)
4552 						 ?  VI_DEFAULT : VIM_DEFAULT];
4553 			else if (nextchar == '<')
4554 			{
4555 			    /* For 'undolevels' NO_LOCAL_UNDOLEVEL means to
4556 			     * use the global value. */
4557 			    if ((long *)varp == &curbuf->b_p_ul
4558 						    && opt_flags == OPT_LOCAL)
4559 				value = NO_LOCAL_UNDOLEVEL;
4560 			    else
4561 				value = *(long *)get_varp_scope(
4562 					     &(options[opt_idx]), OPT_GLOBAL);
4563 			}
4564 			else if (((long *)varp == &p_wc
4565 				    || (long *)varp == &p_wcm)
4566 				&& (*arg == '<'
4567 				    || *arg == '^'
4568 				    || ((!arg[1] || vim_iswhite(arg[1]))
4569 					&& !VIM_ISDIGIT(*arg))))
4570 			{
4571 			    value = string_to_key(arg);
4572 			    if (value == 0 && (long *)varp != &p_wcm)
4573 			    {
4574 				errmsg = e_invarg;
4575 				goto skip;
4576 			    }
4577 			}
4578 			else if (*arg == '-' || VIM_ISDIGIT(*arg))
4579 			{
4580 			    /* Allow negative (for 'undolevels'), octal and
4581 			     * hex numbers. */
4582 			    vim_str2nr(arg, NULL, &i, TRUE, TRUE, &value, NULL, 0);
4583 			    if (arg[i] != NUL && !vim_iswhite(arg[i]))
4584 			    {
4585 				errmsg = e_invarg;
4586 				goto skip;
4587 			    }
4588 			}
4589 			else
4590 			{
4591 			    errmsg = (char_u *)N_("E521: Number required after =");
4592 			    goto skip;
4593 			}
4594 
4595 			if (adding)
4596 			    value = *(long *)varp + value;
4597 			if (prepending)
4598 			    value = *(long *)varp * value;
4599 			if (removing)
4600 			    value = *(long *)varp - value;
4601 			errmsg = set_num_option(opt_idx, varp, value,
4602 					   errbuf, sizeof(errbuf), opt_flags);
4603 		    }
4604 		    else if (opt_idx >= 0)		    /* string */
4605 		    {
4606 			char_u	    *save_arg = NULL;
4607 			char_u	    *s = NULL;
4608 			char_u	    *oldval = NULL;	/* previous value if *varp */
4609 			char_u	    *newval;
4610 			char_u	    *origval = NULL;
4611 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
4612 			char_u	    *saved_origval = NULL;
4613 #endif
4614 			unsigned    newlen;
4615 			int	    comma;
4616 			int	    bs;
4617 			int	    new_value_alloced;	/* new string option
4618 							   was allocated */
4619 
4620 			/* When using ":set opt=val" for a global option
4621 			 * with a local value the local value will be
4622 			 * reset, use the global value here. */
4623 			if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
4624 				&& ((int)options[opt_idx].indir & PV_BOTH))
4625 			    varp = options[opt_idx].var;
4626 
4627 			/* The old value is kept until we are sure that the
4628 			 * new value is valid. */
4629 			oldval = *(char_u **)varp;
4630 			if (nextchar == '&')	/* set to default val */
4631 			{
4632 			    newval = options[opt_idx].def_val[
4633 						((flags & P_VI_DEF) || cp_val)
4634 						 ?  VI_DEFAULT : VIM_DEFAULT];
4635 			    if ((char_u **)varp == &p_bg)
4636 			    {
4637 				/* guess the value of 'background' */
4638 #ifdef FEAT_GUI
4639 				if (gui.in_use)
4640 				    newval = gui_bg_default();
4641 				else
4642 #endif
4643 				    newval = term_bg_default();
4644 			    }
4645 
4646 			    /* expand environment variables and ~ (since the
4647 			     * default value was already expanded, only
4648 			     * required when an environment variable was set
4649 			     * later */
4650 			    if (newval == NULL)
4651 				newval = empty_option;
4652 			    else
4653 			    {
4654 				s = option_expand(opt_idx, newval);
4655 				if (s == NULL)
4656 				    s = newval;
4657 				newval = vim_strsave(s);
4658 			    }
4659 			    new_value_alloced = TRUE;
4660 			}
4661 			else if (nextchar == '<')	/* set to global val */
4662 			{
4663 			    newval = vim_strsave(*(char_u **)get_varp_scope(
4664 					     &(options[opt_idx]), OPT_GLOBAL));
4665 			    new_value_alloced = TRUE;
4666 			}
4667 			else
4668 			{
4669 			    ++arg;	/* jump to after the '=' or ':' */
4670 
4671 			    /*
4672 			     * Set 'keywordprg' to ":help" if an empty
4673 			     * value was passed to :set by the user.
4674 			     * Misuse errbuf[] for the resulting string.
4675 			     */
4676 			    if (varp == (char_u *)&p_kp
4677 					      && (*arg == NUL || *arg == ' '))
4678 			    {
4679 				STRCPY(errbuf, ":help");
4680 				save_arg = arg;
4681 				arg = errbuf;
4682 			    }
4683 			    /*
4684 			     * Convert 'backspace' number to string, for
4685 			     * adding, prepending and removing string.
4686 			     */
4687 			    else if (varp == (char_u *)&p_bs
4688 					 && VIM_ISDIGIT(**(char_u **)varp))
4689 			    {
4690 				i = getdigits((char_u **)varp);
4691 				switch (i)
4692 				{
4693 				    case 0:
4694 					*(char_u **)varp = empty_option;
4695 					break;
4696 				    case 1:
4697 					*(char_u **)varp = vim_strsave(
4698 						      (char_u *)"indent,eol");
4699 					break;
4700 				    case 2:
4701 					*(char_u **)varp = vim_strsave(
4702 						(char_u *)"indent,eol,start");
4703 					break;
4704 				}
4705 				vim_free(oldval);
4706 				oldval = *(char_u **)varp;
4707 			    }
4708 			    /*
4709 			     * Convert 'whichwrap' number to string, for
4710 			     * backwards compatibility with Vim 3.0.
4711 			     * Misuse errbuf[] for the resulting string.
4712 			     */
4713 			    else if (varp == (char_u *)&p_ww
4714 							 && VIM_ISDIGIT(*arg))
4715 			    {
4716 				*errbuf = NUL;
4717 				i = getdigits(&arg);
4718 				if (i & 1)
4719 				    STRCAT(errbuf, "b,");
4720 				if (i & 2)
4721 				    STRCAT(errbuf, "s,");
4722 				if (i & 4)
4723 				    STRCAT(errbuf, "h,l,");
4724 				if (i & 8)
4725 				    STRCAT(errbuf, "<,>,");
4726 				if (i & 16)
4727 				    STRCAT(errbuf, "[,],");
4728 				if (*errbuf != NUL)	/* remove trailing , */
4729 				    errbuf[STRLEN(errbuf) - 1] = NUL;
4730 				save_arg = arg;
4731 				arg = errbuf;
4732 			    }
4733 			    /*
4734 			     * Remove '>' before 'dir' and 'bdir', for
4735 			     * backwards compatibility with version 3.0
4736 			     */
4737 			    else if (  *arg == '>'
4738 				    && (varp == (char_u *)&p_dir
4739 					    || varp == (char_u *)&p_bdir))
4740 			    {
4741 				++arg;
4742 			    }
4743 
4744 			    /* When setting the local value of a global
4745 			     * option, the old value may be the global value. */
4746 			    if (((int)options[opt_idx].indir & PV_BOTH)
4747 						   && (opt_flags & OPT_LOCAL))
4748 				origval = *(char_u **)get_varp(
4749 							   &options[opt_idx]);
4750 			    else
4751 				origval = oldval;
4752 
4753 			    /*
4754 			     * Copy the new string into allocated memory.
4755 			     * Can't use set_string_option_direct(), because
4756 			     * we need to remove the backslashes.
4757 			     */
4758 			    /* get a bit too much */
4759 			    newlen = (unsigned)STRLEN(arg) + 1;
4760 			    if (adding || prepending || removing)
4761 				newlen += (unsigned)STRLEN(origval) + 1;
4762 			    newval = alloc(newlen);
4763 			    if (newval == NULL)  /* out of mem, don't change */
4764 				break;
4765 			    s = newval;
4766 
4767 			    /*
4768 			     * Copy the string, skip over escaped chars.
4769 			     * For MS-DOS and WIN32 backslashes before normal
4770 			     * file name characters are not removed, and keep
4771 			     * backslash at start, for "\\machine\path", but
4772 			     * do remove it for "\\\\machine\\path".
4773 			     * The reverse is found in ExpandOldSetting().
4774 			     */
4775 			    while (*arg && !vim_iswhite(*arg))
4776 			    {
4777 				if (*arg == '\\' && arg[1] != NUL
4778 #ifdef BACKSLASH_IN_FILENAME
4779 					&& !((flags & P_EXPAND)
4780 						&& vim_isfilec(arg[1])
4781 						&& (arg[1] != '\\'
4782 						    || (s == newval
4783 							&& arg[2] != '\\')))
4784 #endif
4785 								    )
4786 				    ++arg;	/* remove backslash */
4787 #ifdef FEAT_MBYTE
4788 				if (has_mbyte
4789 					&& (i = (*mb_ptr2len)(arg)) > 1)
4790 				{
4791 				    /* copy multibyte char */
4792 				    mch_memmove(s, arg, (size_t)i);
4793 				    arg += i;
4794 				    s += i;
4795 				}
4796 				else
4797 #endif
4798 				    *s++ = *arg++;
4799 			    }
4800 			    *s = NUL;
4801 
4802 			    /*
4803 			     * Expand environment variables and ~.
4804 			     * Don't do it when adding without inserting a
4805 			     * comma.
4806 			     */
4807 			    if (!(adding || prepending || removing)
4808 							 || (flags & P_COMMA))
4809 			    {
4810 				s = option_expand(opt_idx, newval);
4811 				if (s != NULL)
4812 				{
4813 				    vim_free(newval);
4814 				    newlen = (unsigned)STRLEN(s) + 1;
4815 				    if (adding || prepending || removing)
4816 					newlen += (unsigned)STRLEN(origval) + 1;
4817 				    newval = alloc(newlen);
4818 				    if (newval == NULL)
4819 					break;
4820 				    STRCPY(newval, s);
4821 				}
4822 			    }
4823 
4824 			    /* locate newval[] in origval[] when removing it
4825 			     * and when adding to avoid duplicates */
4826 			    i = 0;	/* init for GCC */
4827 			    if (removing || (flags & P_NODUP))
4828 			    {
4829 				i = (int)STRLEN(newval);
4830 				bs = 0;
4831 				for (s = origval; *s; ++s)
4832 				{
4833 				    if ((!(flags & P_COMMA)
4834 						|| s == origval
4835 						|| (s[-1] == ',' && !(bs & 1)))
4836 					    && STRNCMP(s, newval, i) == 0
4837 					    && (!(flags & P_COMMA)
4838 						|| s[i] == ','
4839 						|| s[i] == NUL))
4840 					break;
4841 				    /* Count backslashes.  Only a comma with an
4842 				     * even number of backslashes before it is
4843 				     * recognized as a separator */
4844 				    if (s > origval && s[-1] == '\\')
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(opt_idx, opt_flags, new_value)
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(errbuf, c)
5097     char_u	*errbuf;
5098     int		c;
5099 {
5100     if (errbuf == NULL)
5101 	return (char_u *)"";
5102     sprintf((char *)errbuf, _("E539: Illegal character <%s>"),
5103 							(char *)transchar(c));
5104     return errbuf;
5105 }
5106 
5107 /*
5108  * Convert a key name or string into a key value.
5109  * Used for 'wildchar' and 'cedit' options.
5110  */
5111     static int
5112 string_to_key(arg)
5113     char_u	*arg;
5114 {
5115     if (*arg == '<')
5116 	return find_key_option(arg + 1);
5117     if (*arg == '^')
5118 	return Ctrl_chr(arg[1]);
5119     return *arg;
5120 }
5121 
5122 #ifdef FEAT_CMDWIN
5123 /*
5124  * Check value of 'cedit' and set cedit_key.
5125  * Returns NULL if value is OK, error message otherwise.
5126  */
5127     static char_u *
5128 check_cedit()
5129 {
5130     int n;
5131 
5132     if (*p_cedit == NUL)
5133 	cedit_key = -1;
5134     else
5135     {
5136 	n = string_to_key(p_cedit);
5137 	if (vim_isprintc(n))
5138 	    return e_invarg;
5139 	cedit_key = n;
5140     }
5141     return NULL;
5142 }
5143 #endif
5144 
5145 #ifdef FEAT_TITLE
5146 /*
5147  * When changing 'title', 'titlestring', 'icon' or 'iconstring', call
5148  * maketitle() to create and display it.
5149  * When switching the title or icon off, call mch_restore_title() to get
5150  * the old value back.
5151  */
5152     static void
5153 did_set_title(icon)
5154     int	    icon;	    /* Did set icon instead of title */
5155 {
5156     if (starting != NO_SCREEN
5157 #ifdef FEAT_GUI
5158 	    && !gui.starting
5159 #endif
5160 				)
5161     {
5162 	maketitle();
5163 	if (icon)
5164 	{
5165 	    if (!p_icon)
5166 		mch_restore_title(2);
5167 	}
5168 	else
5169 	{
5170 	    if (!p_title)
5171 		mch_restore_title(1);
5172 	}
5173     }
5174 }
5175 #endif
5176 
5177 /*
5178  * set_options_bin -  called when 'bin' changes value.
5179  */
5180     void
5181 set_options_bin(oldval, newval, opt_flags)
5182     int		oldval;
5183     int		newval;
5184     int		opt_flags;	/* OPT_LOCAL and/or OPT_GLOBAL */
5185 {
5186     /*
5187      * The option values that are changed when 'bin' changes are
5188      * copied when 'bin is set and restored when 'bin' is reset.
5189      */
5190     if (newval)
5191     {
5192 	if (!oldval)		/* switched on */
5193 	{
5194 	    if (!(opt_flags & OPT_GLOBAL))
5195 	    {
5196 		curbuf->b_p_tw_nobin = curbuf->b_p_tw;
5197 		curbuf->b_p_wm_nobin = curbuf->b_p_wm;
5198 		curbuf->b_p_ml_nobin = curbuf->b_p_ml;
5199 		curbuf->b_p_et_nobin = curbuf->b_p_et;
5200 	    }
5201 	    if (!(opt_flags & OPT_LOCAL))
5202 	    {
5203 		p_tw_nobin = p_tw;
5204 		p_wm_nobin = p_wm;
5205 		p_ml_nobin = p_ml;
5206 		p_et_nobin = p_et;
5207 	    }
5208 	}
5209 
5210 	if (!(opt_flags & OPT_GLOBAL))
5211 	{
5212 	    curbuf->b_p_tw = 0;	/* no automatic line wrap */
5213 	    curbuf->b_p_wm = 0;	/* no automatic line wrap */
5214 	    curbuf->b_p_ml = 0;	/* no modelines */
5215 	    curbuf->b_p_et = 0;	/* no expandtab */
5216 	}
5217 	if (!(opt_flags & OPT_LOCAL))
5218 	{
5219 	    p_tw = 0;
5220 	    p_wm = 0;
5221 	    p_ml = FALSE;
5222 	    p_et = FALSE;
5223 	    p_bin = TRUE;	/* needed when called for the "-b" argument */
5224 	}
5225     }
5226     else if (oldval)		/* switched off */
5227     {
5228 	if (!(opt_flags & OPT_GLOBAL))
5229 	{
5230 	    curbuf->b_p_tw = curbuf->b_p_tw_nobin;
5231 	    curbuf->b_p_wm = curbuf->b_p_wm_nobin;
5232 	    curbuf->b_p_ml = curbuf->b_p_ml_nobin;
5233 	    curbuf->b_p_et = curbuf->b_p_et_nobin;
5234 	}
5235 	if (!(opt_flags & OPT_LOCAL))
5236 	{
5237 	    p_tw = p_tw_nobin;
5238 	    p_wm = p_wm_nobin;
5239 	    p_ml = p_ml_nobin;
5240 	    p_et = p_et_nobin;
5241 	}
5242     }
5243 }
5244 
5245 #ifdef FEAT_VIMINFO
5246 /*
5247  * Find the parameter represented by the given character (eg ', :, ", or /),
5248  * and return its associated value in the 'viminfo' string.
5249  * Only works for number parameters, not for 'r' or 'n'.
5250  * If the parameter is not specified in the string or there is no following
5251  * number, return -1.
5252  */
5253     int
5254 get_viminfo_parameter(type)
5255     int	    type;
5256 {
5257     char_u  *p;
5258 
5259     p = find_viminfo_parameter(type);
5260     if (p != NULL && VIM_ISDIGIT(*p))
5261 	return atoi((char *)p);
5262     return -1;
5263 }
5264 
5265 /*
5266  * Find the parameter represented by the given character (eg ''', ':', '"', or
5267  * '/') in the 'viminfo' option and return a pointer to the string after it.
5268  * Return NULL if the parameter is not specified in the string.
5269  */
5270     char_u *
5271 find_viminfo_parameter(type)
5272     int	    type;
5273 {
5274     char_u  *p;
5275 
5276     for (p = p_viminfo; *p; ++p)
5277     {
5278 	if (*p == type)
5279 	    return p + 1;
5280 	if (*p == 'n')		    /* 'n' is always the last one */
5281 	    break;
5282 	p = vim_strchr(p, ',');	    /* skip until next ',' */
5283 	if (p == NULL)		    /* hit the end without finding parameter */
5284 	    break;
5285     }
5286     return NULL;
5287 }
5288 #endif
5289 
5290 /*
5291  * Expand environment variables for some string options.
5292  * These string options cannot be indirect!
5293  * If "val" is NULL expand the current value of the option.
5294  * Return pointer to NameBuff, or NULL when not expanded.
5295  */
5296     static char_u *
5297 option_expand(opt_idx, val)
5298     int		opt_idx;
5299     char_u	*val;
5300 {
5301     /* if option doesn't need expansion nothing to do */
5302     if (!(options[opt_idx].flags & P_EXPAND) || options[opt_idx].var == NULL)
5303 	return NULL;
5304 
5305     /* If val is longer than MAXPATHL no meaningful expansion can be done,
5306      * expand_env() would truncate the string. */
5307     if (val != NULL && STRLEN(val) > MAXPATHL)
5308 	return NULL;
5309 
5310     if (val == NULL)
5311 	val = *(char_u **)options[opt_idx].var;
5312 
5313     /*
5314      * Expanding this with NameBuff, expand_env() must not be passed IObuff.
5315      * Escape spaces when expanding 'tags', they are used to separate file
5316      * names.
5317      * For 'spellsuggest' expand after "file:".
5318      */
5319     expand_env_esc(val, NameBuff, MAXPATHL,
5320 	    (char_u **)options[opt_idx].var == &p_tags, FALSE,
5321 #ifdef FEAT_SPELL
5322 	    (char_u **)options[opt_idx].var == &p_sps ? (char_u *)"file:" :
5323 #endif
5324 				  NULL);
5325     if (STRCMP(NameBuff, val) == 0)   /* they are the same */
5326 	return NULL;
5327 
5328     return NameBuff;
5329 }
5330 
5331 /*
5332  * After setting various option values: recompute variables that depend on
5333  * option values.
5334  */
5335     static void
5336 didset_options()
5337 {
5338     /* initialize the table for 'iskeyword' et.al. */
5339     (void)init_chartab();
5340 
5341 #ifdef FEAT_MBYTE
5342     (void)opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE);
5343 #endif
5344     (void)opt_strings_flags(p_bkc, p_bkc_values, &bkc_flags, TRUE);
5345     (void)opt_strings_flags(p_bo, p_bo_values, &bo_flags, TRUE);
5346 #ifdef FEAT_SESSION
5347     (void)opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE);
5348     (void)opt_strings_flags(p_vop, p_ssop_values, &vop_flags, TRUE);
5349 #endif
5350 #ifdef FEAT_FOLDING
5351     (void)opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE);
5352 #endif
5353     (void)opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE);
5354     (void)opt_strings_flags(p_tc, p_tc_values, &tc_flags, FALSE);
5355 #ifdef FEAT_VIRTUALEDIT
5356     (void)opt_strings_flags(p_ve, p_ve_values, &ve_flags, TRUE);
5357 #endif
5358 #if defined(FEAT_MOUSE) && (defined(UNIX) || defined(VMS))
5359     (void)opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE);
5360 #endif
5361 #ifdef FEAT_SPELL
5362     (void)spell_check_msm();
5363     (void)spell_check_sps();
5364     (void)compile_cap_prog(curwin->w_s);
5365     (void)did_set_spell_option(TRUE);
5366 #endif
5367 #if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
5368     (void)opt_strings_flags(p_toolbar, p_toolbar_values, &toolbar_flags, TRUE);
5369 #endif
5370 #if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK)
5371     (void)opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE);
5372 #endif
5373 #ifdef FEAT_CMDWIN
5374     /* set cedit_key */
5375     (void)check_cedit();
5376 #endif
5377 #ifdef FEAT_LINEBREAK
5378     briopt_check(curwin);
5379 #endif
5380 #ifdef FEAT_LINEBREAK
5381     /* initialize the table for 'breakat'. */
5382     fill_breakat_flags();
5383 #endif
5384 
5385 }
5386 
5387 /*
5388  * More side effects of setting options.
5389  */
5390     static void
5391 didset_options2()
5392 {
5393     /* Initialize the highlight_attr[] table. */
5394     (void)highlight_changed();
5395 
5396     /* Parse default for 'wildmode'  */
5397     check_opt_wim();
5398 
5399     (void)set_chars_option(&p_lcs);
5400 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
5401     /* Parse default for 'fillchars'. */
5402     (void)set_chars_option(&p_fcs);
5403 #endif
5404 
5405 #ifdef FEAT_CLIPBOARD
5406     /* Parse default for 'clipboard' */
5407     (void)check_clipboard_option();
5408 #endif
5409 }
5410 
5411 /*
5412  * Check for string options that are NULL (normally only termcap options).
5413  */
5414     void
5415 check_options()
5416 {
5417     int		opt_idx;
5418 
5419     for (opt_idx = 0; options[opt_idx].fullname != NULL; opt_idx++)
5420 	if ((options[opt_idx].flags & P_STRING) && options[opt_idx].var != NULL)
5421 	    check_string_option((char_u **)get_varp(&(options[opt_idx])));
5422 }
5423 
5424 /*
5425  * Check string options in a buffer for NULL value.
5426  */
5427     void
5428 check_buf_options(buf)
5429     buf_T	*buf;
5430 {
5431 #if defined(FEAT_QUICKFIX)
5432     check_string_option(&buf->b_p_bh);
5433     check_string_option(&buf->b_p_bt);
5434 #endif
5435 #ifdef FEAT_MBYTE
5436     check_string_option(&buf->b_p_fenc);
5437 #endif
5438     check_string_option(&buf->b_p_ff);
5439 #ifdef FEAT_FIND_ID
5440     check_string_option(&buf->b_p_def);
5441     check_string_option(&buf->b_p_inc);
5442 # ifdef FEAT_EVAL
5443     check_string_option(&buf->b_p_inex);
5444 # endif
5445 #endif
5446 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
5447     check_string_option(&buf->b_p_inde);
5448     check_string_option(&buf->b_p_indk);
5449 #endif
5450 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
5451     check_string_option(&buf->b_p_bexpr);
5452 #endif
5453 #if defined(FEAT_CRYPT)
5454     check_string_option(&buf->b_p_cm);
5455 #endif
5456 #if defined(FEAT_EVAL)
5457     check_string_option(&buf->b_p_fex);
5458 #endif
5459 #ifdef FEAT_CRYPT
5460     check_string_option(&buf->b_p_key);
5461 #endif
5462     check_string_option(&buf->b_p_kp);
5463     check_string_option(&buf->b_p_mps);
5464     check_string_option(&buf->b_p_fo);
5465     check_string_option(&buf->b_p_flp);
5466     check_string_option(&buf->b_p_isk);
5467 #ifdef FEAT_COMMENTS
5468     check_string_option(&buf->b_p_com);
5469 #endif
5470 #ifdef FEAT_FOLDING
5471     check_string_option(&buf->b_p_cms);
5472 #endif
5473     check_string_option(&buf->b_p_nf);
5474 #ifdef FEAT_TEXTOBJ
5475     check_string_option(&buf->b_p_qe);
5476 #endif
5477 #ifdef FEAT_SYN_HL
5478     check_string_option(&buf->b_p_syn);
5479 #endif
5480 #ifdef FEAT_SPELL
5481     check_string_option(&buf->b_s.b_p_spc);
5482     check_string_option(&buf->b_s.b_p_spf);
5483     check_string_option(&buf->b_s.b_p_spl);
5484 #endif
5485 #ifdef FEAT_SEARCHPATH
5486     check_string_option(&buf->b_p_sua);
5487 #endif
5488 #ifdef FEAT_CINDENT
5489     check_string_option(&buf->b_p_cink);
5490     check_string_option(&buf->b_p_cino);
5491     parse_cino(buf);
5492 #endif
5493 #ifdef FEAT_AUTOCMD
5494     check_string_option(&buf->b_p_ft);
5495 #endif
5496 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
5497     check_string_option(&buf->b_p_cinw);
5498 #endif
5499 #ifdef FEAT_INS_EXPAND
5500     check_string_option(&buf->b_p_cpt);
5501 #endif
5502 #ifdef FEAT_COMPL_FUNC
5503     check_string_option(&buf->b_p_cfu);
5504     check_string_option(&buf->b_p_ofu);
5505 #endif
5506 #ifdef FEAT_KEYMAP
5507     check_string_option(&buf->b_p_keymap);
5508 #endif
5509 #ifdef FEAT_QUICKFIX
5510     check_string_option(&buf->b_p_gp);
5511     check_string_option(&buf->b_p_mp);
5512     check_string_option(&buf->b_p_efm);
5513 #endif
5514     check_string_option(&buf->b_p_ep);
5515     check_string_option(&buf->b_p_path);
5516     check_string_option(&buf->b_p_tags);
5517     check_string_option(&buf->b_p_tc);
5518 #ifdef FEAT_INS_EXPAND
5519     check_string_option(&buf->b_p_dict);
5520     check_string_option(&buf->b_p_tsr);
5521 #endif
5522 #ifdef FEAT_LISP
5523     check_string_option(&buf->b_p_lw);
5524 #endif
5525     check_string_option(&buf->b_p_bkc);
5526 }
5527 
5528 /*
5529  * Free the string allocated for an option.
5530  * Checks for the string being empty_option. This may happen if we're out of
5531  * memory, vim_strsave() returned NULL, which was replaced by empty_option by
5532  * check_options().
5533  * Does NOT check for P_ALLOCED flag!
5534  */
5535     void
5536 free_string_option(p)
5537     char_u	*p;
5538 {
5539     if (p != empty_option)
5540 	vim_free(p);
5541 }
5542 
5543     void
5544 clear_string_option(pp)
5545     char_u	**pp;
5546 {
5547     if (*pp != empty_option)
5548 	vim_free(*pp);
5549     *pp = empty_option;
5550 }
5551 
5552     static void
5553 check_string_option(pp)
5554     char_u	**pp;
5555 {
5556     if (*pp == NULL)
5557 	*pp = empty_option;
5558 }
5559 
5560 /*
5561  * Mark a terminal option as allocated, found by a pointer into term_strings[].
5562  */
5563     void
5564 set_term_option_alloced(p)
5565     char_u **p;
5566 {
5567     int		opt_idx;
5568 
5569     for (opt_idx = 1; options[opt_idx].fullname != NULL; opt_idx++)
5570 	if (options[opt_idx].var == (char_u *)p)
5571 	{
5572 	    options[opt_idx].flags |= P_ALLOCED;
5573 	    return;
5574 	}
5575     return; /* cannot happen: didn't find it! */
5576 }
5577 
5578 #if defined(FEAT_EVAL) || defined(PROTO)
5579 /*
5580  * Return TRUE when option "opt" was set from a modeline or in secure mode.
5581  * Return FALSE when it wasn't.
5582  * Return -1 for an unknown option.
5583  */
5584     int
5585 was_set_insecurely(opt, opt_flags)
5586     char_u  *opt;
5587     int	    opt_flags;
5588 {
5589     int	    idx = findoption(opt);
5590     long_u  *flagp;
5591 
5592     if (idx >= 0)
5593     {
5594 	flagp = insecure_flag(idx, opt_flags);
5595 	return (*flagp & P_INSECURE) != 0;
5596     }
5597     EMSG2(_(e_intern2), "was_set_insecurely()");
5598     return -1;
5599 }
5600 
5601 /*
5602  * Get a pointer to the flags used for the P_INSECURE flag of option
5603  * "opt_idx".  For some local options a local flags field is used.
5604  */
5605     static long_u *
5606 insecure_flag(opt_idx, opt_flags)
5607     int		opt_idx;
5608     int		opt_flags;
5609 {
5610     if (opt_flags & OPT_LOCAL)
5611 	switch ((int)options[opt_idx].indir)
5612 	{
5613 #ifdef FEAT_STL_OPT
5614 	    case PV_STL:	return &curwin->w_p_stl_flags;
5615 #endif
5616 #ifdef FEAT_EVAL
5617 # ifdef FEAT_FOLDING
5618 	    case PV_FDE:	return &curwin->w_p_fde_flags;
5619 	    case PV_FDT:	return &curwin->w_p_fdt_flags;
5620 # endif
5621 # ifdef FEAT_BEVAL
5622 	    case PV_BEXPR:	return &curbuf->b_p_bexpr_flags;
5623 # endif
5624 # if defined(FEAT_CINDENT)
5625 	    case PV_INDE:	return &curbuf->b_p_inde_flags;
5626 # endif
5627 	    case PV_FEX:	return &curbuf->b_p_fex_flags;
5628 # ifdef FEAT_FIND_ID
5629 	    case PV_INEX:	return &curbuf->b_p_inex_flags;
5630 # endif
5631 #endif
5632 	}
5633 
5634     /* Nothing special, return global flags field. */
5635     return &options[opt_idx].flags;
5636 }
5637 #endif
5638 
5639 #ifdef FEAT_TITLE
5640 static void redraw_titles __ARGS((void));
5641 
5642 /*
5643  * Redraw the window title and/or tab page text later.
5644  */
5645 static void redraw_titles()
5646 {
5647     need_maketitle = TRUE;
5648 # ifdef FEAT_WINDOWS
5649     redraw_tabline = TRUE;
5650 # endif
5651 }
5652 #endif
5653 
5654 /*
5655  * Set a string option to a new value (without checking the effect).
5656  * The string is copied into allocated memory.
5657  * if ("opt_idx" == -1) "name" is used, otherwise "opt_idx" is used.
5658  * When "set_sid" is zero set the scriptID to current_SID.  When "set_sid" is
5659  * SID_NONE don't set the scriptID.  Otherwise set the scriptID to "set_sid".
5660  */
5661     void
5662 set_string_option_direct(name, opt_idx, val, opt_flags, set_sid)
5663     char_u	*name;
5664     int		opt_idx;
5665     char_u	*val;
5666     int		opt_flags;	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
5667     int		set_sid UNUSED;
5668 {
5669     char_u	*s;
5670     char_u	**varp;
5671     int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
5672     int		idx = opt_idx;
5673 
5674     if (idx == -1)		/* use name */
5675     {
5676 	idx = findoption(name);
5677 	if (idx < 0)	/* not found (should not happen) */
5678 	{
5679 	    EMSG2(_(e_intern2), "set_string_option_direct()");
5680 	    EMSG2(_("For option %s"), name);
5681 	    return;
5682 	}
5683     }
5684 
5685     if (options[idx].var == NULL)	/* can't set hidden option */
5686 	return;
5687 
5688     s = vim_strsave(val);
5689     if (s != NULL)
5690     {
5691 	varp = (char_u **)get_varp_scope(&(options[idx]),
5692 					       both ? OPT_LOCAL : opt_flags);
5693 	if ((opt_flags & OPT_FREE) && (options[idx].flags & P_ALLOCED))
5694 	    free_string_option(*varp);
5695 	*varp = s;
5696 
5697 	/* For buffer/window local option may also set the global value. */
5698 	if (both)
5699 	    set_string_option_global(idx, varp);
5700 
5701 	options[idx].flags |= P_ALLOCED;
5702 
5703 	/* When setting both values of a global option with a local value,
5704 	 * make the local value empty, so that the global value is used. */
5705 	if (((int)options[idx].indir & PV_BOTH) && both)
5706 	{
5707 	    free_string_option(*varp);
5708 	    *varp = empty_option;
5709 	}
5710 # ifdef FEAT_EVAL
5711 	if (set_sid != SID_NONE)
5712 	    set_option_scriptID_idx(idx, opt_flags,
5713 					set_sid == 0 ? current_SID : set_sid);
5714 # endif
5715     }
5716 }
5717 
5718 /*
5719  * Set global value for string option when it's a local option.
5720  */
5721     static void
5722 set_string_option_global(opt_idx, varp)
5723     int		opt_idx;	/* option index */
5724     char_u	**varp;		/* pointer to option variable */
5725 {
5726     char_u	**p, *s;
5727 
5728     /* the global value is always allocated */
5729     if (options[opt_idx].var == VAR_WIN)
5730 	p = (char_u **)GLOBAL_WO(varp);
5731     else
5732 	p = (char_u **)options[opt_idx].var;
5733     if (options[opt_idx].indir != PV_NONE
5734 	    && p != varp
5735 	    && (s = vim_strsave(*varp)) != NULL)
5736     {
5737 	free_string_option(*p);
5738 	*p = s;
5739     }
5740 }
5741 
5742 /*
5743  * Set a string option to a new value, and handle the effects.
5744  *
5745  * Returns NULL on success or error message on error.
5746  */
5747     static char_u *
5748 set_string_option(opt_idx, value, opt_flags)
5749     int		opt_idx;
5750     char_u	*value;
5751     int		opt_flags;	/* OPT_LOCAL and/or OPT_GLOBAL */
5752 {
5753     char_u	*s;
5754     char_u	**varp;
5755     char_u	*oldval;
5756 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
5757     char_u	*saved_oldval = NULL;
5758 #endif
5759     char_u	*r = NULL;
5760 
5761     if (options[opt_idx].var == NULL)	/* don't set hidden option */
5762 	return NULL;
5763 
5764     s = vim_strsave(value);
5765     if (s != NULL)
5766     {
5767 	varp = (char_u **)get_varp_scope(&(options[opt_idx]),
5768 		(opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
5769 		    ? (((int)options[opt_idx].indir & PV_BOTH)
5770 			? OPT_GLOBAL : OPT_LOCAL)
5771 		    : opt_flags);
5772 	oldval = *varp;
5773 	*varp = s;
5774 
5775 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
5776 	if (!starting
5777 # ifdef FEAT_CRYPT
5778 		&& options[opt_idx].indir != PV_KEY
5779 # endif
5780 		)
5781 	    saved_oldval = vim_strsave(oldval);
5782 #endif
5783 	if ((r = did_set_string_option(opt_idx, varp, TRUE, oldval, NULL,
5784 							   opt_flags)) == NULL)
5785 	    did_set_option(opt_idx, opt_flags, TRUE);
5786 
5787 	/* call autocomamnd after handling side effects */
5788 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
5789 	if (saved_oldval != NULL)
5790 	{
5791 	    char_u buf_type[7];
5792 	    sprintf((char *)buf_type, "%s",
5793 		(opt_flags & OPT_LOCAL) ? "local" : "global");
5794 	    set_vim_var_string(VV_OPTION_NEW, *varp, -1);
5795 	    set_vim_var_string(VV_OPTION_OLD, saved_oldval, -1);
5796 	    set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
5797 	    apply_autocmds(EVENT_OPTIONSET, (char_u *)options[opt_idx].fullname, NULL, FALSE, NULL);
5798 	    reset_v_option_vars();
5799 	    vim_free(saved_oldval);
5800 	}
5801 #endif
5802     }
5803     return r;
5804 }
5805 
5806 /*
5807  * Handle string options that need some action to perform when changed.
5808  * Returns NULL for success, or an error message for an error.
5809  */
5810     static char_u *
5811 did_set_string_option(opt_idx, varp, new_value_alloced, oldval, errbuf,
5812 								    opt_flags)
5813     int		opt_idx;		/* index in options[] table */
5814     char_u	**varp;			/* pointer to the option variable */
5815     int		new_value_alloced;	/* new value was allocated */
5816     char_u	*oldval;		/* previous value of the option */
5817     char_u	*errbuf;		/* buffer for errors, or NULL */
5818     int		opt_flags;		/* OPT_LOCAL and/or OPT_GLOBAL */
5819 {
5820     char_u	*errmsg = NULL;
5821     char_u	*s, *p;
5822     int		did_chartab = FALSE;
5823     char_u	**gvarp;
5824     long_u	free_oldval = (options[opt_idx].flags & P_ALLOCED);
5825 #ifdef FEAT_GUI
5826     /* set when changing an option that only requires a redraw in the GUI */
5827     int		redraw_gui_only = FALSE;
5828 #endif
5829 
5830     /* Get the global option to compare with, otherwise we would have to check
5831      * two values for all local options. */
5832     gvarp = (char_u **)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL);
5833 
5834     /* Disallow changing some options from secure mode */
5835     if ((secure
5836 #ifdef HAVE_SANDBOX
5837 		|| sandbox != 0
5838 #endif
5839 		) && (options[opt_idx].flags & P_SECURE))
5840     {
5841 	errmsg = e_secure;
5842     }
5843 
5844     /* Check for a "normal" file name in some options.  Disallow a path
5845      * separator (slash and/or backslash), wildcards and characters that are
5846      * often illegal in a file name. */
5847     else if ((options[opt_idx].flags & P_NFNAME)
5848 			 && vim_strpbrk(*varp, (char_u *)"/\\*?[|<>") != NULL)
5849     {
5850 	errmsg = e_invarg;
5851     }
5852 
5853     /* 'term' */
5854     else if (varp == &T_NAME)
5855     {
5856 	if (T_NAME[0] == NUL)
5857 	    errmsg = (char_u *)N_("E529: Cannot set 'term' to empty string");
5858 #ifdef FEAT_GUI
5859 	if (gui.in_use)
5860 	    errmsg = (char_u *)N_("E530: Cannot change term in GUI");
5861 	else if (term_is_gui(T_NAME))
5862 	    errmsg = (char_u *)N_("E531: Use \":gui\" to start the GUI");
5863 #endif
5864 	else if (set_termname(T_NAME) == FAIL)
5865 	    errmsg = (char_u *)N_("E522: Not found in termcap");
5866 	else
5867 	    /* Screen colors may have changed. */
5868 	    redraw_later_clear();
5869     }
5870 
5871     /* 'backupcopy' */
5872     else if (gvarp == &p_bkc)
5873     {
5874 	char_u		*bkc = p_bkc;
5875 	unsigned int	*flags = &bkc_flags;
5876 
5877 	if (opt_flags & OPT_LOCAL)
5878 	{
5879 	    bkc = curbuf->b_p_bkc;
5880 	    flags = &curbuf->b_bkc_flags;
5881 	}
5882 
5883 	if ((opt_flags & OPT_LOCAL) && *bkc == NUL)
5884 	    /* make the local value empty: use the global value */
5885 	    *flags = 0;
5886 	else
5887 	{
5888 	    if (opt_strings_flags(bkc, p_bkc_values, flags, TRUE) != OK)
5889 		errmsg = e_invarg;
5890 	    if ((((int)*flags & BKC_AUTO) != 0)
5891 		    + (((int)*flags & BKC_YES) != 0)
5892 		    + (((int)*flags & BKC_NO) != 0) != 1)
5893 	    {
5894 		/* Must have exactly one of "auto", "yes"  and "no". */
5895 		(void)opt_strings_flags(oldval, p_bkc_values, flags, TRUE);
5896 		errmsg = e_invarg;
5897 	    }
5898 	}
5899     }
5900 
5901     /* 'backupext' and 'patchmode' */
5902     else if (varp == &p_bex || varp == &p_pm)
5903     {
5904 	if (STRCMP(*p_bex == '.' ? p_bex + 1 : p_bex,
5905 		     *p_pm == '.' ? p_pm + 1 : p_pm) == 0)
5906 	    errmsg = (char_u *)N_("E589: 'backupext' and 'patchmode' are equal");
5907     }
5908 #ifdef FEAT_LINEBREAK
5909     /* 'breakindentopt' */
5910     else if (varp == &curwin->w_p_briopt)
5911     {
5912 	if (briopt_check(curwin) == FAIL)
5913 	    errmsg = e_invarg;
5914     }
5915 #endif
5916 
5917     /*
5918      * 'isident', 'iskeyword', 'isprint or 'isfname' option: refill chartab[]
5919      * If the new option is invalid, use old value.  'lisp' option: refill
5920      * chartab[] for '-' char
5921      */
5922     else if (  varp == &p_isi
5923 	    || varp == &(curbuf->b_p_isk)
5924 	    || varp == &p_isp
5925 	    || varp == &p_isf)
5926     {
5927 	if (init_chartab() == FAIL)
5928 	{
5929 	    did_chartab = TRUE;	    /* need to restore it below */
5930 	    errmsg = e_invarg;	    /* error in value */
5931 	}
5932     }
5933 
5934     /* 'helpfile' */
5935     else if (varp == &p_hf)
5936     {
5937 	/* May compute new values for $VIM and $VIMRUNTIME */
5938 	if (didset_vim)
5939 	{
5940 	    vim_setenv((char_u *)"VIM", (char_u *)"");
5941 	    didset_vim = FALSE;
5942 	}
5943 	if (didset_vimruntime)
5944 	{
5945 	    vim_setenv((char_u *)"VIMRUNTIME", (char_u *)"");
5946 	    didset_vimruntime = FALSE;
5947 	}
5948     }
5949 
5950 #ifdef FEAT_SYN_HL
5951     /* 'colorcolumn' */
5952     else if (varp == &curwin->w_p_cc)
5953 	errmsg = check_colorcolumn(curwin);
5954 #endif
5955 
5956 #ifdef FEAT_MULTI_LANG
5957     /* 'helplang' */
5958     else if (varp == &p_hlg)
5959     {
5960 	/* Check for "", "ab", "ab,cd", etc. */
5961 	for (s = p_hlg; *s != NUL; s += 3)
5962 	{
5963 	    if (s[1] == NUL || ((s[2] != ',' || s[3] == NUL) && s[2] != NUL))
5964 	    {
5965 		errmsg = e_invarg;
5966 		break;
5967 	    }
5968 	    if (s[2] == NUL)
5969 		break;
5970 	}
5971     }
5972 #endif
5973 
5974     /* 'highlight' */
5975     else if (varp == &p_hl)
5976     {
5977 	if (highlight_changed() == FAIL)
5978 	    errmsg = e_invarg;	/* invalid flags */
5979     }
5980 
5981     /* 'nrformats' */
5982     else if (gvarp == &p_nf)
5983     {
5984 	if (check_opt_strings(*varp, p_nf_values, TRUE) != OK)
5985 	    errmsg = e_invarg;
5986     }
5987 
5988 #ifdef FEAT_SESSION
5989     /* 'sessionoptions' */
5990     else if (varp == &p_ssop)
5991     {
5992 	if (opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE) != OK)
5993 	    errmsg = e_invarg;
5994 	if ((ssop_flags & SSOP_CURDIR) && (ssop_flags & SSOP_SESDIR))
5995 	{
5996 	    /* Don't allow both "sesdir" and "curdir". */
5997 	    (void)opt_strings_flags(oldval, p_ssop_values, &ssop_flags, TRUE);
5998 	    errmsg = e_invarg;
5999 	}
6000     }
6001     /* 'viewoptions' */
6002     else if (varp == &p_vop)
6003     {
6004 	if (opt_strings_flags(p_vop, p_ssop_values, &vop_flags, TRUE) != OK)
6005 	    errmsg = e_invarg;
6006     }
6007 #endif
6008 
6009     /* 'scrollopt' */
6010 #ifdef FEAT_SCROLLBIND
6011     else if (varp == &p_sbo)
6012     {
6013 	if (check_opt_strings(p_sbo, p_scbopt_values, TRUE) != OK)
6014 	    errmsg = e_invarg;
6015     }
6016 #endif
6017 
6018     /* 'ambiwidth' */
6019 #ifdef FEAT_MBYTE
6020     else if (varp == &p_ambw)
6021     {
6022 	if (check_opt_strings(p_ambw, p_ambw_values, FALSE) != OK)
6023 	    errmsg = e_invarg;
6024 	else if (set_chars_option(&p_lcs) != NULL)
6025 	    errmsg = (char_u *)_("E834: Conflicts with value of 'listchars'");
6026 # if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
6027 	else if (set_chars_option(&p_fcs) != NULL)
6028 	    errmsg = (char_u *)_("E835: Conflicts with value of 'fillchars'");
6029 # endif
6030     }
6031 #endif
6032 
6033     /* 'background' */
6034     else if (varp == &p_bg)
6035     {
6036 	if (check_opt_strings(p_bg, p_bg_values, FALSE) == OK)
6037 	{
6038 #ifdef FEAT_EVAL
6039 	    int dark = (*p_bg == 'd');
6040 #endif
6041 
6042 	    init_highlight(FALSE, FALSE);
6043 
6044 #ifdef FEAT_EVAL
6045 	    if (dark != (*p_bg == 'd')
6046 			  && get_var_value((char_u *)"g:colors_name") != NULL)
6047 	    {
6048 		/* The color scheme must have set 'background' back to another
6049 		 * value, that's not what we want here.  Disable the color
6050 		 * scheme and set the colors again. */
6051 		do_unlet((char_u *)"g:colors_name", TRUE);
6052 		free_string_option(p_bg);
6053 		p_bg = vim_strsave((char_u *)(dark ? "dark" : "light"));
6054 		check_string_option(&p_bg);
6055 		init_highlight(FALSE, FALSE);
6056 	    }
6057 #endif
6058 	}
6059 	else
6060 	    errmsg = e_invarg;
6061     }
6062 
6063     /* 'wildmode' */
6064     else if (varp == &p_wim)
6065     {
6066 	if (check_opt_wim() == FAIL)
6067 	    errmsg = e_invarg;
6068     }
6069 
6070 #ifdef FEAT_CMDL_COMPL
6071     /* 'wildoptions' */
6072     else if (varp == &p_wop)
6073     {
6074 	if (check_opt_strings(p_wop, p_wop_values, TRUE) != OK)
6075 	    errmsg = e_invarg;
6076     }
6077 #endif
6078 
6079 #ifdef FEAT_WAK
6080     /* 'winaltkeys' */
6081     else if (varp == &p_wak)
6082     {
6083 	if (*p_wak == NUL
6084 		|| check_opt_strings(p_wak, p_wak_values, FALSE) != OK)
6085 	    errmsg = e_invarg;
6086 # ifdef FEAT_MENU
6087 #  ifdef FEAT_GUI_MOTIF
6088 	else if (gui.in_use)
6089 	    gui_motif_set_mnemonics(p_wak[0] == 'y' || p_wak[0] == 'm');
6090 #  else
6091 #   ifdef FEAT_GUI_GTK
6092 	else if (gui.in_use)
6093 	    gui_gtk_set_mnemonics(p_wak[0] == 'y' || p_wak[0] == 'm');
6094 #   endif
6095 #  endif
6096 # endif
6097     }
6098 #endif
6099 
6100 #ifdef FEAT_AUTOCMD
6101     /* 'eventignore' */
6102     else if (varp == &p_ei)
6103     {
6104 	if (check_ei() == FAIL)
6105 	    errmsg = e_invarg;
6106     }
6107 #endif
6108 
6109 #ifdef FEAT_MBYTE
6110     /* 'encoding' and 'fileencoding' */
6111     else if (varp == &p_enc || gvarp == &p_fenc || varp == &p_tenc)
6112     {
6113 	if (gvarp == &p_fenc)
6114 	{
6115 	    if (!curbuf->b_p_ma && opt_flags != OPT_GLOBAL)
6116 		errmsg = e_modifiable;
6117 	    else if (vim_strchr(*varp, ',') != NULL)
6118 		/* No comma allowed in 'fileencoding'; catches confusing it
6119 		 * with 'fileencodings'. */
6120 		errmsg = e_invarg;
6121 	    else
6122 	    {
6123 # ifdef FEAT_TITLE
6124 		/* May show a "+" in the title now. */
6125 		redraw_titles();
6126 # endif
6127 		/* Add 'fileencoding' to the swap file. */
6128 		ml_setflags(curbuf);
6129 	    }
6130 	}
6131 	if (errmsg == NULL)
6132 	{
6133 	    /* canonize the value, so that STRCMP() can be used on it */
6134 	    p = enc_canonize(*varp);
6135 	    if (p != NULL)
6136 	    {
6137 		vim_free(*varp);
6138 		*varp = p;
6139 	    }
6140 	    if (varp == &p_enc)
6141 	    {
6142 		errmsg = mb_init();
6143 # ifdef FEAT_TITLE
6144 		redraw_titles();
6145 # endif
6146 	    }
6147 	}
6148 
6149 # if defined(FEAT_GUI_GTK)
6150 	if (errmsg == NULL && varp == &p_tenc && gui.in_use)
6151 	{
6152 	    /* GTK+ 2 uses only a single encoding, and that is UTF-8. */
6153 	    if (STRCMP(p_tenc, "utf-8") != 0)
6154 		errmsg = (char_u *)N_("E617: Cannot be changed in the GTK+ 2 GUI");
6155 	}
6156 # endif
6157 
6158 	if (errmsg == NULL)
6159 	{
6160 # ifdef FEAT_KEYMAP
6161 	    /* When 'keymap' is used and 'encoding' changes, reload the keymap
6162 	     * (with another encoding). */
6163 	    if (varp == &p_enc && *curbuf->b_p_keymap != NUL)
6164 		(void)keymap_init();
6165 # endif
6166 
6167 	    /* When 'termencoding' is not empty and 'encoding' changes or when
6168 	     * 'termencoding' changes, need to setup for keyboard input and
6169 	     * display output conversion. */
6170 	    if (((varp == &p_enc && *p_tenc != NUL) || varp == &p_tenc))
6171 	    {
6172 		convert_setup(&input_conv, p_tenc, p_enc);
6173 		convert_setup(&output_conv, p_enc, p_tenc);
6174 	    }
6175 
6176 # if defined(WIN3264) && defined(FEAT_MBYTE)
6177 	    /* $HOME may have characters in active code page. */
6178 	    if (varp == &p_enc)
6179 		init_homedir();
6180 # endif
6181 	}
6182     }
6183 #endif
6184 
6185 #if defined(FEAT_POSTSCRIPT)
6186     else if (varp == &p_penc)
6187     {
6188 	/* Canonize printencoding if VIM standard one */
6189 	p = enc_canonize(p_penc);
6190 	if (p != NULL)
6191 	{
6192 	    vim_free(p_penc);
6193 	    p_penc = p;
6194 	}
6195 	else
6196 	{
6197 	    /* Ensure lower case and '-' for '_' */
6198 	    for (s = p_penc; *s != NUL; s++)
6199 	    {
6200 		if (*s == '_')
6201 		    *s = '-';
6202 		else
6203 		    *s = TOLOWER_ASC(*s);
6204 	    }
6205 	}
6206     }
6207 #endif
6208 
6209 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
6210     else if (varp == &p_imak)
6211     {
6212 	if (gui.in_use && !im_xim_isvalid_imactivate())
6213 	    errmsg = e_invarg;
6214     }
6215 #endif
6216 
6217 #ifdef FEAT_KEYMAP
6218     else if (varp == &curbuf->b_p_keymap)
6219     {
6220 	/* load or unload key mapping tables */
6221 	errmsg = keymap_init();
6222 
6223 	if (errmsg == NULL)
6224 	{
6225 	    if (*curbuf->b_p_keymap != NUL)
6226 	    {
6227 		/* Installed a new keymap, switch on using it. */
6228 		curbuf->b_p_iminsert = B_IMODE_LMAP;
6229 		if (curbuf->b_p_imsearch != B_IMODE_USE_INSERT)
6230 		    curbuf->b_p_imsearch = B_IMODE_LMAP;
6231 	    }
6232 	    else
6233 	    {
6234 		/* Cleared the keymap, may reset 'iminsert' and 'imsearch'. */
6235 		if (curbuf->b_p_iminsert == B_IMODE_LMAP)
6236 		    curbuf->b_p_iminsert = B_IMODE_NONE;
6237 		if (curbuf->b_p_imsearch == B_IMODE_LMAP)
6238 		    curbuf->b_p_imsearch = B_IMODE_USE_INSERT;
6239 	    }
6240 	    if ((opt_flags & OPT_LOCAL) == 0)
6241 	    {
6242 		set_iminsert_global();
6243 		set_imsearch_global();
6244 	    }
6245 # ifdef FEAT_WINDOWS
6246 	    status_redraw_curbuf();
6247 # endif
6248 	}
6249     }
6250 #endif
6251 
6252     /* 'fileformat' */
6253     else if (gvarp == &p_ff)
6254     {
6255 	if (!curbuf->b_p_ma && !(opt_flags & OPT_GLOBAL))
6256 	    errmsg = e_modifiable;
6257 	else if (check_opt_strings(*varp, p_ff_values, FALSE) != OK)
6258 	    errmsg = e_invarg;
6259 	else
6260 	{
6261 	    /* may also change 'textmode' */
6262 	    if (get_fileformat(curbuf) == EOL_DOS)
6263 		curbuf->b_p_tx = TRUE;
6264 	    else
6265 		curbuf->b_p_tx = FALSE;
6266 #ifdef FEAT_TITLE
6267 	    redraw_titles();
6268 #endif
6269 	    /* update flag in swap file */
6270 	    ml_setflags(curbuf);
6271 	    /* Redraw needed when switching to/from "mac": a CR in the text
6272 	     * will be displayed differently. */
6273 	    if (get_fileformat(curbuf) == EOL_MAC || *oldval == 'm')
6274 		redraw_curbuf_later(NOT_VALID);
6275 	}
6276     }
6277 
6278     /* 'fileformats' */
6279     else if (varp == &p_ffs)
6280     {
6281 	if (check_opt_strings(p_ffs, p_ff_values, TRUE) != OK)
6282 	    errmsg = e_invarg;
6283 	else
6284 	{
6285 	    /* also change 'textauto' */
6286 	    if (*p_ffs == NUL)
6287 		p_ta = FALSE;
6288 	    else
6289 		p_ta = TRUE;
6290 	}
6291     }
6292 
6293 #if defined(FEAT_CRYPT)
6294     /* 'cryptkey' */
6295     else if (gvarp == &p_key)
6296     {
6297 # if defined(FEAT_CMDHIST)
6298 	/* Make sure the ":set" command doesn't show the new value in the
6299 	 * history. */
6300 	remove_key_from_history();
6301 # endif
6302 	if (STRCMP(curbuf->b_p_key, oldval) != 0)
6303 	    /* Need to update the swapfile. */
6304 	    ml_set_crypt_key(curbuf, oldval,
6305 			      *curbuf->b_p_cm == NUL ? p_cm : curbuf->b_p_cm);
6306     }
6307 
6308     else if (gvarp == &p_cm)
6309     {
6310 	if (opt_flags & OPT_LOCAL)
6311 	    p = curbuf->b_p_cm;
6312 	else
6313 	    p = p_cm;
6314 	if (check_opt_strings(p, p_cm_values, TRUE) != OK)
6315 	    errmsg = e_invarg;
6316 	else if (crypt_self_test() == FAIL)
6317 	    errmsg = e_invarg;
6318 	else
6319 	{
6320 	    /* When setting the global value to empty, make it "zip". */
6321 	    if (*p_cm == NUL)
6322 	    {
6323 		if (new_value_alloced)
6324 		    free_string_option(p_cm);
6325 		p_cm = vim_strsave((char_u *)"zip");
6326 		new_value_alloced = TRUE;
6327 	    }
6328 	    /* When using ":set cm=name" the local value is going to be empty.
6329 	     * Do that here, otherwise the crypt functions will still use the
6330 	     * local value. */
6331 	    if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
6332 	    {
6333 		free_string_option(curbuf->b_p_cm);
6334 		curbuf->b_p_cm = empty_option;
6335 	    }
6336 
6337 	    /* Need to update the swapfile when the effective method changed.
6338 	     * Set "s" to the effective old value, "p" to the effective new
6339 	     * method and compare. */
6340 	    if ((opt_flags & OPT_LOCAL) && *oldval == NUL)
6341 		s = p_cm;  /* was previously using the global value */
6342 	    else
6343 		s = oldval;
6344 	    if (*curbuf->b_p_cm == NUL)
6345 		p = p_cm;  /* is now using the global value */
6346 	    else
6347 		p = curbuf->b_p_cm;
6348 	    if (STRCMP(s, p) != 0)
6349 		ml_set_crypt_key(curbuf, curbuf->b_p_key, s);
6350 
6351 	    /* If the global value changes need to update the swapfile for all
6352 	     * buffers using that value. */
6353 	    if ((opt_flags & OPT_GLOBAL) && STRCMP(p_cm, oldval) != 0)
6354 	    {
6355 		buf_T	*buf;
6356 
6357 		for (buf = firstbuf; buf != NULL; buf = buf->b_next)
6358 		    if (buf != curbuf && *buf->b_p_cm == NUL)
6359 			ml_set_crypt_key(buf, buf->b_p_key, oldval);
6360 	    }
6361 	}
6362     }
6363 #endif
6364 
6365     /* 'matchpairs' */
6366     else if (gvarp == &p_mps)
6367     {
6368 #ifdef FEAT_MBYTE
6369 	if (has_mbyte)
6370 	{
6371 	    for (p = *varp; *p != NUL; ++p)
6372 	    {
6373 		int x2 = -1;
6374 		int x3 = -1;
6375 
6376 		if (*p != NUL)
6377 		    p += mb_ptr2len(p);
6378 		if (*p != NUL)
6379 		    x2 = *p++;
6380 		if (*p != NUL)
6381 		{
6382 		    x3 = mb_ptr2char(p);
6383 		    p += mb_ptr2len(p);
6384 		}
6385 		if (x2 != ':' || x3 == -1 || (*p != NUL && *p != ','))
6386 		{
6387 		    errmsg = e_invarg;
6388 		    break;
6389 		}
6390 		if (*p == NUL)
6391 		    break;
6392 	    }
6393 	}
6394 	else
6395 #endif
6396 	{
6397 	    /* Check for "x:y,x:y" */
6398 	    for (p = *varp; *p != NUL; p += 4)
6399 	    {
6400 		if (p[1] != ':' || p[2] == NUL || (p[3] != NUL && p[3] != ','))
6401 		{
6402 		    errmsg = e_invarg;
6403 		    break;
6404 		}
6405 		if (p[3] == NUL)
6406 		    break;
6407 	    }
6408 	}
6409     }
6410 
6411 #ifdef FEAT_COMMENTS
6412     /* 'comments' */
6413     else if (gvarp == &p_com)
6414     {
6415 	for (s = *varp; *s; )
6416 	{
6417 	    while (*s && *s != ':')
6418 	    {
6419 		if (vim_strchr((char_u *)COM_ALL, *s) == NULL
6420 					     && !VIM_ISDIGIT(*s) && *s != '-')
6421 		{
6422 		    errmsg = illegal_char(errbuf, *s);
6423 		    break;
6424 		}
6425 		++s;
6426 	    }
6427 	    if (*s++ == NUL)
6428 		errmsg = (char_u *)N_("E524: Missing colon");
6429 	    else if (*s == ',' || *s == NUL)
6430 		errmsg = (char_u *)N_("E525: Zero length string");
6431 	    if (errmsg != NULL)
6432 		break;
6433 	    while (*s && *s != ',')
6434 	    {
6435 		if (*s == '\\' && s[1] != NUL)
6436 		    ++s;
6437 		++s;
6438 	    }
6439 	    s = skip_to_option_part(s);
6440 	}
6441     }
6442 #endif
6443 
6444     /* 'listchars' */
6445     else if (varp == &p_lcs)
6446     {
6447 	errmsg = set_chars_option(varp);
6448     }
6449 
6450 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
6451     /* 'fillchars' */
6452     else if (varp == &p_fcs)
6453     {
6454 	errmsg = set_chars_option(varp);
6455     }
6456 #endif
6457 
6458 #ifdef FEAT_CMDWIN
6459     /* 'cedit' */
6460     else if (varp == &p_cedit)
6461     {
6462 	errmsg = check_cedit();
6463     }
6464 #endif
6465 
6466     /* 'verbosefile' */
6467     else if (varp == &p_vfile)
6468     {
6469 	verbose_stop();
6470 	if (*p_vfile != NUL && verbose_open() == FAIL)
6471 	    errmsg = e_invarg;
6472     }
6473 
6474 #ifdef FEAT_VIMINFO
6475     /* 'viminfo' */
6476     else if (varp == &p_viminfo)
6477     {
6478 	for (s = p_viminfo; *s;)
6479 	{
6480 	    /* Check it's a valid character */
6481 	    if (vim_strchr((char_u *)"!\"%'/:<@cfhnrs", *s) == NULL)
6482 	    {
6483 		errmsg = illegal_char(errbuf, *s);
6484 		break;
6485 	    }
6486 	    if (*s == 'n')	/* name is always last one */
6487 	    {
6488 		break;
6489 	    }
6490 	    else if (*s == 'r') /* skip until next ',' */
6491 	    {
6492 		while (*++s && *s != ',')
6493 		    ;
6494 	    }
6495 	    else if (*s == '%')
6496 	    {
6497 		/* optional number */
6498 		while (vim_isdigit(*++s))
6499 		    ;
6500 	    }
6501 	    else if (*s == '!' || *s == 'h' || *s == 'c')
6502 		++s;		/* no extra chars */
6503 	    else		/* must have a number */
6504 	    {
6505 		while (vim_isdigit(*++s))
6506 		    ;
6507 
6508 		if (!VIM_ISDIGIT(*(s - 1)))
6509 		{
6510 		    if (errbuf != NULL)
6511 		    {
6512 			sprintf((char *)errbuf,
6513 					 _("E526: Missing number after <%s>"),
6514 						    transchar_byte(*(s - 1)));
6515 			errmsg = errbuf;
6516 		    }
6517 		    else
6518 			errmsg = (char_u *)"";
6519 		    break;
6520 		}
6521 	    }
6522 	    if (*s == ',')
6523 		++s;
6524 	    else if (*s)
6525 	    {
6526 		if (errbuf != NULL)
6527 		    errmsg = (char_u *)N_("E527: Missing comma");
6528 		else
6529 		    errmsg = (char_u *)"";
6530 		break;
6531 	    }
6532 	}
6533 	if (*p_viminfo && errmsg == NULL && get_viminfo_parameter('\'') < 0)
6534 	    errmsg = (char_u *)N_("E528: Must specify a ' value");
6535     }
6536 #endif /* FEAT_VIMINFO */
6537 
6538     /* terminal options */
6539     else if (istermoption(&options[opt_idx]) && full_screen)
6540     {
6541 	/* ":set t_Co=0" and ":set t_Co=1" do ":set t_Co=" */
6542 	if (varp == &T_CCO)
6543 	{
6544 	    int colors = atoi((char *)T_CCO);
6545 
6546 	    /* Only reinitialize colors if t_Co value has really changed to
6547 	     * avoid expensive reload of colorscheme if t_Co is set to the
6548 	     * same value multiple times. */
6549 	    if (colors != t_colors)
6550 	    {
6551 		t_colors = colors;
6552 		if (t_colors <= 1)
6553 		{
6554 		    if (new_value_alloced)
6555 			vim_free(T_CCO);
6556 		    T_CCO = empty_option;
6557 		}
6558 		/* We now have a different color setup, initialize it again. */
6559 		init_highlight(TRUE, FALSE);
6560 	    }
6561 	}
6562 	ttest(FALSE);
6563 	if (varp == &T_ME)
6564 	{
6565 	    out_str(T_ME);
6566 	    redraw_later(CLEAR);
6567 #if defined(MSDOS) || (defined(WIN3264) && !defined(FEAT_GUI_W32))
6568 	    /* Since t_me has been set, this probably means that the user
6569 	     * wants to use this as default colors.  Need to reset default
6570 	     * background/foreground colors. */
6571 	    mch_set_normal_colors();
6572 #endif
6573 	}
6574     }
6575 
6576 #ifdef FEAT_LINEBREAK
6577     /* 'showbreak' */
6578     else if (varp == &p_sbr)
6579     {
6580 	for (s = p_sbr; *s; )
6581 	{
6582 	    if (ptr2cells(s) != 1)
6583 		errmsg = (char_u *)N_("E595: contains unprintable or wide character");
6584 	    mb_ptr_adv(s);
6585 	}
6586     }
6587 #endif
6588 
6589 #ifdef FEAT_GUI
6590     /* 'guifont' */
6591     else if (varp == &p_guifont)
6592     {
6593 	if (gui.in_use)
6594 	{
6595 	    p = p_guifont;
6596 # if defined(FEAT_GUI_GTK)
6597 	    /*
6598 	     * Put up a font dialog and let the user select a new value.
6599 	     * If this is cancelled go back to the old value but don't
6600 	     * give an error message.
6601 	     */
6602 	    if (STRCMP(p, "*") == 0)
6603 	    {
6604 		p = gui_mch_font_dialog(oldval);
6605 
6606 		if (new_value_alloced)
6607 		    free_string_option(p_guifont);
6608 
6609 		p_guifont = (p != NULL) ? p : vim_strsave(oldval);
6610 		new_value_alloced = TRUE;
6611 	    }
6612 # endif
6613 	    if (p != NULL && gui_init_font(p_guifont, FALSE) != OK)
6614 	    {
6615 # if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_PHOTON)
6616 		if (STRCMP(p_guifont, "*") == 0)
6617 		{
6618 		    /* Dialog was cancelled: Keep the old value without giving
6619 		     * an error message. */
6620 		    if (new_value_alloced)
6621 			free_string_option(p_guifont);
6622 		    p_guifont = vim_strsave(oldval);
6623 		    new_value_alloced = TRUE;
6624 		}
6625 		else
6626 # endif
6627 		    errmsg = (char_u *)N_("E596: Invalid font(s)");
6628 	    }
6629 	}
6630 	redraw_gui_only = TRUE;
6631     }
6632 # ifdef FEAT_XFONTSET
6633     else if (varp == &p_guifontset)
6634     {
6635 	if (STRCMP(p_guifontset, "*") == 0)
6636 	    errmsg = (char_u *)N_("E597: can't select fontset");
6637 	else if (gui.in_use && gui_init_font(p_guifontset, TRUE) != OK)
6638 	    errmsg = (char_u *)N_("E598: Invalid fontset");
6639 	redraw_gui_only = TRUE;
6640     }
6641 # endif
6642 # ifdef FEAT_MBYTE
6643     else if (varp == &p_guifontwide)
6644     {
6645 	if (STRCMP(p_guifontwide, "*") == 0)
6646 	    errmsg = (char_u *)N_("E533: can't select wide font");
6647 	else if (gui_get_wide_font() == FAIL)
6648 	    errmsg = (char_u *)N_("E534: Invalid wide font");
6649 	redraw_gui_only = TRUE;
6650     }
6651 # endif
6652 #endif
6653 
6654 #ifdef CURSOR_SHAPE
6655     /* 'guicursor' */
6656     else if (varp == &p_guicursor)
6657 	errmsg = parse_shape_opt(SHAPE_CURSOR);
6658 #endif
6659 
6660 #ifdef FEAT_MOUSESHAPE
6661     /* 'mouseshape' */
6662     else if (varp == &p_mouseshape)
6663     {
6664 	errmsg = parse_shape_opt(SHAPE_MOUSE);
6665 	update_mouseshape(-1);
6666     }
6667 #endif
6668 
6669 #ifdef FEAT_PRINTER
6670     else if (varp == &p_popt)
6671 	errmsg = parse_printoptions();
6672 # if defined(FEAT_MBYTE) && defined(FEAT_POSTSCRIPT)
6673     else if (varp == &p_pmfn)
6674 	errmsg = parse_printmbfont();
6675 # endif
6676 #endif
6677 
6678 #ifdef FEAT_LANGMAP
6679     /* 'langmap' */
6680     else if (varp == &p_langmap)
6681 	langmap_set();
6682 #endif
6683 
6684 #ifdef FEAT_LINEBREAK
6685     /* 'breakat' */
6686     else if (varp == &p_breakat)
6687 	fill_breakat_flags();
6688 #endif
6689 
6690 #ifdef FEAT_TITLE
6691     /* 'titlestring' and 'iconstring' */
6692     else if (varp == &p_titlestring || varp == &p_iconstring)
6693     {
6694 # ifdef FEAT_STL_OPT
6695 	int	flagval = (varp == &p_titlestring) ? STL_IN_TITLE : STL_IN_ICON;
6696 
6697 	/* NULL => statusline syntax */
6698 	if (vim_strchr(*varp, '%') && check_stl_option(*varp) == NULL)
6699 	    stl_syntax |= flagval;
6700 	else
6701 	    stl_syntax &= ~flagval;
6702 # endif
6703 	did_set_title(varp == &p_iconstring);
6704 
6705     }
6706 #endif
6707 
6708 #ifdef FEAT_GUI
6709     /* 'guioptions' */
6710     else if (varp == &p_go)
6711     {
6712 	gui_init_which_components(oldval);
6713 	redraw_gui_only = TRUE;
6714     }
6715 #endif
6716 
6717 #if defined(FEAT_GUI_TABLINE)
6718     /* 'guitablabel' */
6719     else if (varp == &p_gtl)
6720     {
6721 	redraw_tabline = TRUE;
6722 	redraw_gui_only = TRUE;
6723     }
6724     /* 'guitabtooltip' */
6725     else if (varp == &p_gtt)
6726     {
6727 	redraw_gui_only = TRUE;
6728     }
6729 #endif
6730 
6731 #if defined(FEAT_MOUSE_TTY) && (defined(UNIX) || defined(VMS))
6732     /* 'ttymouse' */
6733     else if (varp == &p_ttym)
6734     {
6735 	/* Switch the mouse off before changing the escape sequences used for
6736 	 * that. */
6737 	mch_setmouse(FALSE);
6738 	if (opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE) != OK)
6739 	    errmsg = e_invarg;
6740 	else
6741 	    check_mouse_termcode();
6742 	if (termcap_active)
6743 	    setmouse();		/* may switch it on again */
6744     }
6745 #endif
6746 
6747     /* 'selection' */
6748     else if (varp == &p_sel)
6749     {
6750 	if (*p_sel == NUL
6751 		|| check_opt_strings(p_sel, p_sel_values, FALSE) != OK)
6752 	    errmsg = e_invarg;
6753     }
6754 
6755     /* 'selectmode' */
6756     else if (varp == &p_slm)
6757     {
6758 	if (check_opt_strings(p_slm, p_slm_values, TRUE) != OK)
6759 	    errmsg = e_invarg;
6760     }
6761 
6762 #ifdef FEAT_BROWSE
6763     /* 'browsedir' */
6764     else if (varp == &p_bsdir)
6765     {
6766 	if (check_opt_strings(p_bsdir, p_bsdir_values, FALSE) != OK
6767 		&& !mch_isdir(p_bsdir))
6768 	    errmsg = e_invarg;
6769     }
6770 #endif
6771 
6772     /* 'keymodel' */
6773     else if (varp == &p_km)
6774     {
6775 	if (check_opt_strings(p_km, p_km_values, TRUE) != OK)
6776 	    errmsg = e_invarg;
6777 	else
6778 	{
6779 	    km_stopsel = (vim_strchr(p_km, 'o') != NULL);
6780 	    km_startsel = (vim_strchr(p_km, 'a') != NULL);
6781 	}
6782     }
6783 
6784     /* 'mousemodel' */
6785     else if (varp == &p_mousem)
6786     {
6787 	if (check_opt_strings(p_mousem, p_mousem_values, FALSE) != OK)
6788 	    errmsg = e_invarg;
6789 #if defined(FEAT_GUI_MOTIF) && defined(FEAT_MENU) && (XmVersion <= 1002)
6790 	else if (*p_mousem != *oldval)
6791 	    /* Changed from "extend" to "popup" or "popup_setpos" or vv: need
6792 	     * to create or delete the popup menus. */
6793 	    gui_motif_update_mousemodel(root_menu);
6794 #endif
6795     }
6796 
6797     /* 'switchbuf' */
6798     else if (varp == &p_swb)
6799     {
6800 	if (opt_strings_flags(p_swb, p_swb_values, &swb_flags, TRUE) != OK)
6801 	    errmsg = e_invarg;
6802     }
6803 
6804     /* 'debug' */
6805     else if (varp == &p_debug)
6806     {
6807 	if (check_opt_strings(p_debug, p_debug_values, TRUE) != OK)
6808 	    errmsg = e_invarg;
6809     }
6810 
6811     /* 'display' */
6812     else if (varp == &p_dy)
6813     {
6814 	if (opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE) != OK)
6815 	    errmsg = e_invarg;
6816 	else
6817 	    (void)init_chartab();
6818 
6819     }
6820 
6821 #ifdef FEAT_VERTSPLIT
6822     /* 'eadirection' */
6823     else if (varp == &p_ead)
6824     {
6825 	if (check_opt_strings(p_ead, p_ead_values, FALSE) != OK)
6826 	    errmsg = e_invarg;
6827     }
6828 #endif
6829 
6830 #ifdef FEAT_CLIPBOARD
6831     /* 'clipboard' */
6832     else if (varp == &p_cb)
6833 	errmsg = check_clipboard_option();
6834 #endif
6835 
6836 #ifdef FEAT_SPELL
6837     /* When 'spelllang' or 'spellfile' is set and there is a window for this
6838      * buffer in which 'spell' is set load the wordlists. */
6839     else if (varp == &(curwin->w_s->b_p_spl)
6840 	    || varp == &(curwin->w_s->b_p_spf))
6841     {
6842 	errmsg = did_set_spell_option(varp == &(curwin->w_s->b_p_spf));
6843     }
6844     /* When 'spellcapcheck' is set compile the regexp program. */
6845     else if (varp == &(curwin->w_s->b_p_spc))
6846     {
6847 	errmsg = compile_cap_prog(curwin->w_s);
6848     }
6849     /* 'spellsuggest' */
6850     else if (varp == &p_sps)
6851     {
6852 	if (spell_check_sps() != OK)
6853 	    errmsg = e_invarg;
6854     }
6855     /* 'mkspellmem' */
6856     else if (varp == &p_msm)
6857     {
6858 	if (spell_check_msm() != OK)
6859 	    errmsg = e_invarg;
6860     }
6861 #endif
6862 
6863 #ifdef FEAT_QUICKFIX
6864     /* When 'bufhidden' is set, check for valid value. */
6865     else if (gvarp == &p_bh)
6866     {
6867 	if (check_opt_strings(curbuf->b_p_bh, p_bufhidden_values, FALSE) != OK)
6868 	    errmsg = e_invarg;
6869     }
6870 
6871     /* When 'buftype' is set, check for valid value. */
6872     else if (gvarp == &p_bt)
6873     {
6874 	if (check_opt_strings(curbuf->b_p_bt, p_buftype_values, FALSE) != OK)
6875 	    errmsg = e_invarg;
6876 	else
6877 	{
6878 # ifdef FEAT_WINDOWS
6879 	    if (curwin->w_status_height)
6880 	    {
6881 		curwin->w_redr_status = TRUE;
6882 		redraw_later(VALID);
6883 	    }
6884 # endif
6885 	    curbuf->b_help = (curbuf->b_p_bt[0] == 'h');
6886 # ifdef FEAT_TITLE
6887 	    redraw_titles();
6888 # endif
6889 	}
6890     }
6891 #endif
6892 
6893 #ifdef FEAT_STL_OPT
6894     /* 'statusline' or 'rulerformat' */
6895     else if (gvarp == &p_stl || varp == &p_ruf)
6896     {
6897 	int wid;
6898 
6899 	if (varp == &p_ruf)	/* reset ru_wid first */
6900 	    ru_wid = 0;
6901 	s = *varp;
6902 	if (varp == &p_ruf && *s == '%')
6903 	{
6904 	    /* set ru_wid if 'ruf' starts with "%99(" */
6905 	    if (*++s == '-')	/* ignore a '-' */
6906 		s++;
6907 	    wid = getdigits(&s);
6908 	    if (wid && *s == '(' && (errmsg = check_stl_option(p_ruf)) == NULL)
6909 		ru_wid = wid;
6910 	    else
6911 		errmsg = check_stl_option(p_ruf);
6912 	}
6913 	/* check 'statusline' only if it doesn't start with "%!" */
6914 	else if (varp == &p_ruf || s[0] != '%' || s[1] != '!')
6915 	    errmsg = check_stl_option(s);
6916 	if (varp == &p_ruf && errmsg == NULL)
6917 	    comp_col();
6918     }
6919 #endif
6920 
6921 #ifdef FEAT_INS_EXPAND
6922     /* check if it is a valid value for 'complete' -- Acevedo */
6923     else if (gvarp == &p_cpt)
6924     {
6925 	for (s = *varp; *s;)
6926 	{
6927 	    while (*s == ',' || *s == ' ')
6928 		s++;
6929 	    if (!*s)
6930 		break;
6931 	    if (vim_strchr((char_u *)".wbuksid]tU", *s) == NULL)
6932 	    {
6933 		errmsg = illegal_char(errbuf, *s);
6934 		break;
6935 	    }
6936 	    if (*++s != NUL && *s != ',' && *s != ' ')
6937 	    {
6938 		if (s[-1] == 'k' || s[-1] == 's')
6939 		{
6940 		    /* skip optional filename after 'k' and 's' */
6941 		    while (*s && *s != ',' && *s != ' ')
6942 		    {
6943 			if (*s == '\\')
6944 			    ++s;
6945 			++s;
6946 		    }
6947 		}
6948 		else
6949 		{
6950 		    if (errbuf != NULL)
6951 		    {
6952 			sprintf((char *)errbuf,
6953 				     _("E535: Illegal character after <%c>"),
6954 				     *--s);
6955 			errmsg = errbuf;
6956 		    }
6957 		    else
6958 			errmsg = (char_u *)"";
6959 		    break;
6960 		}
6961 	    }
6962 	}
6963     }
6964 
6965     /* 'completeopt' */
6966     else if (varp == &p_cot)
6967     {
6968 	if (check_opt_strings(p_cot, p_cot_values, TRUE) != OK)
6969 	    errmsg = e_invarg;
6970     }
6971 #endif /* FEAT_INS_EXPAND */
6972 
6973 
6974 #if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
6975     else if (varp == &p_toolbar)
6976     {
6977 	if (opt_strings_flags(p_toolbar, p_toolbar_values,
6978 			      &toolbar_flags, TRUE) != OK)
6979 	    errmsg = e_invarg;
6980 	else
6981 	{
6982 	    out_flush();
6983 	    gui_mch_show_toolbar((toolbar_flags &
6984 				  (TOOLBAR_TEXT | TOOLBAR_ICONS)) != 0);
6985 	}
6986     }
6987 #endif
6988 
6989 #if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK)
6990     /* 'toolbariconsize': GTK+ 2 only */
6991     else if (varp == &p_tbis)
6992     {
6993 	if (opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE) != OK)
6994 	    errmsg = e_invarg;
6995 	else
6996 	{
6997 	    out_flush();
6998 	    gui_mch_show_toolbar((toolbar_flags &
6999 				  (TOOLBAR_TEXT | TOOLBAR_ICONS)) != 0);
7000 	}
7001     }
7002 #endif
7003 
7004     /* 'pastetoggle': translate key codes like in a mapping */
7005     else if (varp == &p_pt)
7006     {
7007 	if (*p_pt)
7008 	{
7009 	    (void)replace_termcodes(p_pt, &p, TRUE, TRUE, FALSE);
7010 	    if (p != NULL)
7011 	    {
7012 		if (new_value_alloced)
7013 		    free_string_option(p_pt);
7014 		p_pt = p;
7015 		new_value_alloced = TRUE;
7016 	    }
7017 	}
7018     }
7019 
7020     /* 'backspace' */
7021     else if (varp == &p_bs)
7022     {
7023 	if (VIM_ISDIGIT(*p_bs))
7024 	{
7025 	    if (*p_bs > '2' || p_bs[1] != NUL)
7026 		errmsg = e_invarg;
7027 	}
7028 	else if (check_opt_strings(p_bs, p_bs_values, TRUE) != OK)
7029 	    errmsg = e_invarg;
7030     }
7031     else if (varp == &p_bo)
7032     {
7033 	if (opt_strings_flags(p_bo, p_bo_values, &bo_flags, TRUE) != OK)
7034 	    errmsg = e_invarg;
7035     }
7036 
7037     /* 'tagcase' */
7038     else if (gvarp == &p_tc)
7039     {
7040 	unsigned int	*flags;
7041 
7042 	if (opt_flags & OPT_LOCAL)
7043 	{
7044 	    p = curbuf->b_p_tc;
7045 	    flags = &curbuf->b_tc_flags;
7046 	}
7047 	else
7048 	{
7049 	    p = p_tc;
7050 	    flags = &tc_flags;
7051 	}
7052 
7053 	if ((opt_flags & OPT_LOCAL) && *p == NUL)
7054 	    /* make the local value empty: use the global value */
7055 	    *flags = 0;
7056 	else if (*p == NUL
7057 		|| opt_strings_flags(p, p_tc_values, flags, FALSE) != OK)
7058 	    errmsg = e_invarg;
7059     }
7060 
7061 #ifdef FEAT_MBYTE
7062     /* 'casemap' */
7063     else if (varp == &p_cmp)
7064     {
7065 	if (opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE) != OK)
7066 	    errmsg = e_invarg;
7067     }
7068 #endif
7069 
7070 #ifdef FEAT_DIFF
7071     /* 'diffopt' */
7072     else if (varp == &p_dip)
7073     {
7074 	if (diffopt_changed() == FAIL)
7075 	    errmsg = e_invarg;
7076     }
7077 #endif
7078 
7079 #ifdef FEAT_FOLDING
7080     /* 'foldmethod' */
7081     else if (gvarp == &curwin->w_allbuf_opt.wo_fdm)
7082     {
7083 	if (check_opt_strings(*varp, p_fdm_values, FALSE) != OK
7084 		|| *curwin->w_p_fdm == NUL)
7085 	    errmsg = e_invarg;
7086 	else
7087 	{
7088 	    foldUpdateAll(curwin);
7089 	    if (foldmethodIsDiff(curwin))
7090 		newFoldLevel();
7091 	}
7092     }
7093 # ifdef FEAT_EVAL
7094     /* 'foldexpr' */
7095     else if (varp == &curwin->w_p_fde)
7096     {
7097 	if (foldmethodIsExpr(curwin))
7098 	    foldUpdateAll(curwin);
7099     }
7100 # endif
7101     /* 'foldmarker' */
7102     else if (gvarp == &curwin->w_allbuf_opt.wo_fmr)
7103     {
7104 	p = vim_strchr(*varp, ',');
7105 	if (p == NULL)
7106 	    errmsg = (char_u *)N_("E536: comma required");
7107 	else if (p == *varp || p[1] == NUL)
7108 	    errmsg = e_invarg;
7109 	else if (foldmethodIsMarker(curwin))
7110 	    foldUpdateAll(curwin);
7111     }
7112     /* 'commentstring' */
7113     else if (gvarp == &p_cms)
7114     {
7115 	if (**varp != NUL && strstr((char *)*varp, "%s") == NULL)
7116 	    errmsg = (char_u *)N_("E537: 'commentstring' must be empty or contain %s");
7117     }
7118     /* 'foldopen' */
7119     else if (varp == &p_fdo)
7120     {
7121 	if (opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE) != OK)
7122 	    errmsg = e_invarg;
7123     }
7124     /* 'foldclose' */
7125     else if (varp == &p_fcl)
7126     {
7127 	if (check_opt_strings(p_fcl, p_fcl_values, TRUE) != OK)
7128 	    errmsg = e_invarg;
7129     }
7130     /* 'foldignore' */
7131     else if (gvarp == &curwin->w_allbuf_opt.wo_fdi)
7132     {
7133 	if (foldmethodIsIndent(curwin))
7134 	    foldUpdateAll(curwin);
7135     }
7136 #endif
7137 
7138 #ifdef FEAT_VIRTUALEDIT
7139     /* 'virtualedit' */
7140     else if (varp == &p_ve)
7141     {
7142 	if (opt_strings_flags(p_ve, p_ve_values, &ve_flags, TRUE) != OK)
7143 	    errmsg = e_invarg;
7144 	else if (STRCMP(p_ve, oldval) != 0)
7145 	{
7146 	    /* Recompute cursor position in case the new 've' setting
7147 	     * changes something. */
7148 	    validate_virtcol();
7149 	    coladvance(curwin->w_virtcol);
7150 	}
7151     }
7152 #endif
7153 
7154 #if defined(FEAT_CSCOPE) && defined(FEAT_QUICKFIX)
7155     else if (varp == &p_csqf)
7156     {
7157 	if (p_csqf != NULL)
7158 	{
7159 	    p = p_csqf;
7160 	    while (*p != NUL)
7161 	    {
7162 		if (vim_strchr((char_u *)CSQF_CMDS, *p) == NULL
7163 			|| p[1] == NUL
7164 			|| vim_strchr((char_u *)CSQF_FLAGS, p[1]) == NULL
7165 			|| (p[2] != NUL && p[2] != ','))
7166 		{
7167 		    errmsg = e_invarg;
7168 		    break;
7169 		}
7170 		else if (p[2] == NUL)
7171 		    break;
7172 		else
7173 		    p += 3;
7174 	    }
7175 	}
7176     }
7177 #endif
7178 
7179 #ifdef FEAT_CINDENT
7180     /* 'cinoptions' */
7181     else if (gvarp == &p_cino)
7182     {
7183 	/* TODO: recognize errors */
7184 	parse_cino(curbuf);
7185     }
7186 #endif
7187 
7188 #if defined(FEAT_RENDER_OPTIONS)
7189     else if (varp == &p_rop && gui.in_use)
7190     {
7191 	if (!gui_mch_set_rendering_options(p_rop))
7192 	    errmsg = e_invarg;
7193     }
7194 #endif
7195 
7196     /* Options that are a list of flags. */
7197     else
7198     {
7199 	p = NULL;
7200 	if (varp == &p_ww)
7201 	    p = (char_u *)WW_ALL;
7202 	if (varp == &p_shm)
7203 	    p = (char_u *)SHM_ALL;
7204 	else if (varp == &(p_cpo))
7205 	    p = (char_u *)CPO_ALL;
7206 	else if (varp == &(curbuf->b_p_fo))
7207 	    p = (char_u *)FO_ALL;
7208 #ifdef FEAT_CONCEAL
7209 	else if (varp == &curwin->w_p_cocu)
7210 	    p = (char_u *)COCU_ALL;
7211 #endif
7212 	else if (varp == &p_mouse)
7213 	{
7214 #ifdef FEAT_MOUSE
7215 	    p = (char_u *)MOUSE_ALL;
7216 #else
7217 	    if (*p_mouse != NUL)
7218 		errmsg = (char_u *)N_("E538: No mouse support");
7219 #endif
7220 	}
7221 #if defined(FEAT_GUI)
7222 	else if (varp == &p_go)
7223 	    p = (char_u *)GO_ALL;
7224 #endif
7225 	if (p != NULL)
7226 	{
7227 	    for (s = *varp; *s; ++s)
7228 		if (vim_strchr(p, *s) == NULL)
7229 		{
7230 		    errmsg = illegal_char(errbuf, *s);
7231 		    break;
7232 		}
7233 	}
7234     }
7235 
7236     /*
7237      * If error detected, restore the previous value.
7238      */
7239     if (errmsg != NULL)
7240     {
7241 	if (new_value_alloced)
7242 	    free_string_option(*varp);
7243 	*varp = oldval;
7244 	/*
7245 	 * When resetting some values, need to act on it.
7246 	 */
7247 	if (did_chartab)
7248 	    (void)init_chartab();
7249 	if (varp == &p_hl)
7250 	    (void)highlight_changed();
7251     }
7252     else
7253     {
7254 #ifdef FEAT_EVAL
7255 	/* Remember where the option was set. */
7256 	set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
7257 #endif
7258 	/*
7259 	 * Free string options that are in allocated memory.
7260 	 * Use "free_oldval", because recursiveness may change the flags under
7261 	 * our fingers (esp. init_highlight()).
7262 	 */
7263 	if (free_oldval)
7264 	    free_string_option(oldval);
7265 	if (new_value_alloced)
7266 	    options[opt_idx].flags |= P_ALLOCED;
7267 	else
7268 	    options[opt_idx].flags &= ~P_ALLOCED;
7269 
7270 	if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
7271 		&& ((int)options[opt_idx].indir & PV_BOTH))
7272 	{
7273 	    /* global option with local value set to use global value; free
7274 	     * the local value and make it empty */
7275 	    p = get_varp_scope(&(options[opt_idx]), OPT_LOCAL);
7276 	    free_string_option(*(char_u **)p);
7277 	    *(char_u **)p = empty_option;
7278 	}
7279 
7280 	/* May set global value for local option. */
7281 	else if (!(opt_flags & OPT_LOCAL) && opt_flags != OPT_GLOBAL)
7282 	    set_string_option_global(opt_idx, varp);
7283 
7284 #ifdef FEAT_AUTOCMD
7285 	/*
7286 	 * Trigger the autocommand only after setting the flags.
7287 	 */
7288 # ifdef FEAT_SYN_HL
7289 	/* When 'syntax' is set, load the syntax of that name */
7290 	if (varp == &(curbuf->b_p_syn))
7291 	{
7292 	    apply_autocmds(EVENT_SYNTAX, curbuf->b_p_syn,
7293 					       curbuf->b_fname, TRUE, curbuf);
7294 	}
7295 # endif
7296 	else if (varp == &(curbuf->b_p_ft))
7297 	{
7298 	    /* 'filetype' is set, trigger the FileType autocommand */
7299 	    did_filetype = TRUE;
7300 	    apply_autocmds(EVENT_FILETYPE, curbuf->b_p_ft,
7301 					       curbuf->b_fname, TRUE, curbuf);
7302 	}
7303 #endif
7304 #ifdef FEAT_SPELL
7305 	if (varp == &(curwin->w_s->b_p_spl))
7306 	{
7307 	    char_u	fname[200];
7308 	    char_u	*q = curwin->w_s->b_p_spl;
7309 
7310 	    /* Skip the first name if it is "cjk". */
7311 	    if (STRNCMP(q, "cjk,", 4) == 0)
7312 		q += 4;
7313 
7314 	    /*
7315 	     * Source the spell/LANG.vim in 'runtimepath'.
7316 	     * They could set 'spellcapcheck' depending on the language.
7317 	     * Use the first name in 'spelllang' up to '_region' or
7318 	     * '.encoding'.
7319 	     */
7320 	    for (p = q; *p != NUL; ++p)
7321 		if (vim_strchr((char_u *)"_.,", *p) != NULL)
7322 		    break;
7323 	    vim_snprintf((char *)fname, 200, "spell/%.*s.vim", (int)(p - q), q);
7324 	    source_runtime(fname, TRUE);
7325 	}
7326 #endif
7327     }
7328 
7329 #ifdef FEAT_MOUSE
7330     if (varp == &p_mouse)
7331     {
7332 # ifdef FEAT_MOUSE_TTY
7333 	if (*p_mouse == NUL)
7334 	    mch_setmouse(FALSE);    /* switch mouse off */
7335 	else
7336 # endif
7337 	    setmouse();		    /* in case 'mouse' changed */
7338     }
7339 #endif
7340 
7341     if (curwin->w_curswant != MAXCOL
7342 		     && (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0)
7343 	curwin->w_set_curswant = TRUE;
7344 
7345 #ifdef FEAT_GUI
7346     /* check redraw when it's not a GUI option or the GUI is active. */
7347     if (!redraw_gui_only || gui.in_use)
7348 #endif
7349 	check_redraw(options[opt_idx].flags);
7350 
7351     return errmsg;
7352 }
7353 
7354 #if defined(FEAT_SYN_HL) || defined(PROTO)
7355 /*
7356  * Simple int comparison function for use with qsort()
7357  */
7358     static int
7359 int_cmp(a, b)
7360     const void *a;
7361     const void *b;
7362 {
7363     return *(const int *)a - *(const int *)b;
7364 }
7365 
7366 /*
7367  * Handle setting 'colorcolumn' or 'textwidth' in window "wp".
7368  * Returns error message, NULL if it's OK.
7369  */
7370     char_u *
7371 check_colorcolumn(wp)
7372     win_T	*wp;
7373 {
7374     char_u	*s;
7375     int		col;
7376     int		count = 0;
7377     int		color_cols[256];
7378     int		i;
7379     int		j = 0;
7380 
7381     if (wp->w_buffer == NULL)
7382 	return NULL;  /* buffer was closed */
7383 
7384     for (s = wp->w_p_cc; *s != NUL && count < 255;)
7385     {
7386 	if (*s == '-' || *s == '+')
7387 	{
7388 	    /* -N and +N: add to 'textwidth' */
7389 	    col = (*s == '-') ? -1 : 1;
7390 	    ++s;
7391 	    if (!VIM_ISDIGIT(*s))
7392 		return e_invarg;
7393 	    col = col * getdigits(&s);
7394 	    if (wp->w_buffer->b_p_tw == 0)
7395 		goto skip;  /* 'textwidth' not set, skip this item */
7396 	    col += wp->w_buffer->b_p_tw;
7397 	    if (col < 0)
7398 		goto skip;
7399 	}
7400 	else if (VIM_ISDIGIT(*s))
7401 	    col = getdigits(&s);
7402 	else
7403 	    return e_invarg;
7404 	color_cols[count++] = col - 1;  /* 1-based to 0-based */
7405 skip:
7406 	if (*s == NUL)
7407 	    break;
7408 	if (*s != ',')
7409 	    return e_invarg;
7410 	if (*++s == NUL)
7411 	    return e_invarg;  /* illegal trailing comma as in "set cc=80," */
7412     }
7413 
7414     vim_free(wp->w_p_cc_cols);
7415     if (count == 0)
7416 	wp->w_p_cc_cols = NULL;
7417     else
7418     {
7419 	wp->w_p_cc_cols = (int *)alloc((unsigned)sizeof(int) * (count + 1));
7420 	if (wp->w_p_cc_cols != NULL)
7421 	{
7422 	    /* sort the columns for faster usage on screen redraw inside
7423 	     * win_line() */
7424 	    qsort(color_cols, count, sizeof(int), int_cmp);
7425 
7426 	    for (i = 0; i < count; ++i)
7427 		/* skip duplicates */
7428 		if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i])
7429 		    wp->w_p_cc_cols[j++] = color_cols[i];
7430 	    wp->w_p_cc_cols[j] = -1;  /* end marker */
7431 	}
7432     }
7433 
7434     return NULL;  /* no error */
7435 }
7436 #endif
7437 
7438 /*
7439  * Handle setting 'listchars' or 'fillchars'.
7440  * Returns error message, NULL if it's OK.
7441  */
7442     static char_u *
7443 set_chars_option(varp)
7444     char_u	**varp;
7445 {
7446     int		round, i, len, entries;
7447     char_u	*p, *s;
7448     int		c1, c2 = 0;
7449     struct charstab
7450     {
7451 	int	*cp;
7452 	char	*name;
7453     };
7454 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
7455     static struct charstab filltab[] =
7456     {
7457 	{&fill_stl,	"stl"},
7458 	{&fill_stlnc,	"stlnc"},
7459 	{&fill_vert,	"vert"},
7460 	{&fill_fold,	"fold"},
7461 	{&fill_diff,	"diff"},
7462     };
7463 #endif
7464     static struct charstab lcstab[] =
7465     {
7466 	{&lcs_eol,	"eol"},
7467 	{&lcs_ext,	"extends"},
7468 	{&lcs_nbsp,	"nbsp"},
7469 	{&lcs_prec,	"precedes"},
7470 	{&lcs_space,	"space"},
7471 	{&lcs_tab2,	"tab"},
7472 	{&lcs_trail,	"trail"},
7473 #ifdef FEAT_CONCEAL
7474 	{&lcs_conceal,	"conceal"},
7475 #else
7476 	{NULL,		"conceal"},
7477 #endif
7478     };
7479     struct charstab *tab;
7480 
7481 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
7482     if (varp == &p_lcs)
7483 #endif
7484     {
7485 	tab = lcstab;
7486 	entries = sizeof(lcstab) / sizeof(struct charstab);
7487     }
7488 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
7489     else
7490     {
7491 	tab = filltab;
7492 	entries = sizeof(filltab) / sizeof(struct charstab);
7493     }
7494 #endif
7495 
7496     /* first round: check for valid value, second round: assign values */
7497     for (round = 0; round <= 1; ++round)
7498     {
7499 	if (round > 0)
7500 	{
7501 	    /* After checking that the value is valid: set defaults: space for
7502 	     * 'fillchars', NUL for 'listchars' */
7503 	    for (i = 0; i < entries; ++i)
7504 		if (tab[i].cp != NULL)
7505 		    *(tab[i].cp) = (varp == &p_lcs ? NUL : ' ');
7506 	    if (varp == &p_lcs)
7507 		lcs_tab1 = NUL;
7508 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
7509 	    else
7510 		fill_diff = '-';
7511 #endif
7512 	}
7513 	p = *varp;
7514 	while (*p)
7515 	{
7516 	    for (i = 0; i < entries; ++i)
7517 	    {
7518 		len = (int)STRLEN(tab[i].name);
7519 		if (STRNCMP(p, tab[i].name, len) == 0
7520 			&& p[len] == ':'
7521 			&& p[len + 1] != NUL)
7522 		{
7523 		    s = p + len + 1;
7524 #ifdef FEAT_MBYTE
7525 		    c1 = mb_ptr2char_adv(&s);
7526 		    if (mb_char2cells(c1) > 1)
7527 			continue;
7528 #else
7529 		    c1 = *s++;
7530 #endif
7531 		    if (tab[i].cp == &lcs_tab2)
7532 		    {
7533 			if (*s == NUL)
7534 			    continue;
7535 #ifdef FEAT_MBYTE
7536 			c2 = mb_ptr2char_adv(&s);
7537 			if (mb_char2cells(c2) > 1)
7538 			    continue;
7539 #else
7540 			c2 = *s++;
7541 #endif
7542 		    }
7543 		    if (*s == ',' || *s == NUL)
7544 		    {
7545 			if (round)
7546 			{
7547 			    if (tab[i].cp == &lcs_tab2)
7548 			    {
7549 				lcs_tab1 = c1;
7550 				lcs_tab2 = c2;
7551 			    }
7552 			    else if (tab[i].cp != NULL)
7553 				*(tab[i].cp) = c1;
7554 
7555 			}
7556 			p = s;
7557 			break;
7558 		    }
7559 		}
7560 	    }
7561 
7562 	    if (i == entries)
7563 		return e_invarg;
7564 	    if (*p == ',')
7565 		++p;
7566 	}
7567     }
7568 
7569     return NULL;	/* no error */
7570 }
7571 
7572 #ifdef FEAT_STL_OPT
7573 /*
7574  * Check validity of options with the 'statusline' format.
7575  * Return error message or NULL.
7576  */
7577     char_u *
7578 check_stl_option(s)
7579     char_u	*s;
7580 {
7581     int		itemcnt = 0;
7582     int		groupdepth = 0;
7583     static char_u   errbuf[80];
7584 
7585     while (*s && itemcnt < STL_MAX_ITEM)
7586     {
7587 	/* Check for valid keys after % sequences */
7588 	while (*s && *s != '%')
7589 	    s++;
7590 	if (!*s)
7591 	    break;
7592 	s++;
7593 	if (*s != '%' && *s != ')')
7594 	    ++itemcnt;
7595 	if (*s == '%' || *s == STL_TRUNCMARK || *s == STL_MIDDLEMARK)
7596 	{
7597 	    s++;
7598 	    continue;
7599 	}
7600 	if (*s == ')')
7601 	{
7602 	    s++;
7603 	    if (--groupdepth < 0)
7604 		break;
7605 	    continue;
7606 	}
7607 	if (*s == '-')
7608 	    s++;
7609 	while (VIM_ISDIGIT(*s))
7610 	    s++;
7611 	if (*s == STL_USER_HL)
7612 	    continue;
7613 	if (*s == '.')
7614 	{
7615 	    s++;
7616 	    while (*s && VIM_ISDIGIT(*s))
7617 		s++;
7618 	}
7619 	if (*s == '(')
7620 	{
7621 	    groupdepth++;
7622 	    continue;
7623 	}
7624 	if (vim_strchr(STL_ALL, *s) == NULL)
7625 	{
7626 	    return illegal_char(errbuf, *s);
7627 	}
7628 	if (*s == '{')
7629 	{
7630 	    s++;
7631 	    while (*s != '}' && *s)
7632 		s++;
7633 	    if (*s != '}')
7634 		return (char_u *)N_("E540: Unclosed expression sequence");
7635 	}
7636     }
7637     if (itemcnt >= STL_MAX_ITEM)
7638 	return (char_u *)N_("E541: too many items");
7639     if (groupdepth != 0)
7640 	return (char_u *)N_("E542: unbalanced groups");
7641     return NULL;
7642 }
7643 #endif
7644 
7645 #ifdef FEAT_CLIPBOARD
7646 /*
7647  * Extract the items in the 'clipboard' option and set global values.
7648  */
7649     static char_u *
7650 check_clipboard_option()
7651 {
7652     int		new_unnamed = 0;
7653     int		new_autoselect_star = FALSE;
7654     int		new_autoselect_plus = FALSE;
7655     int		new_autoselectml = FALSE;
7656     int		new_html = FALSE;
7657     regprog_T	*new_exclude_prog = NULL;
7658     char_u	*errmsg = NULL;
7659     char_u	*p;
7660 
7661     for (p = p_cb; *p != NUL; )
7662     {
7663 	if (STRNCMP(p, "unnamed", 7) == 0 && (p[7] == ',' || p[7] == NUL))
7664 	{
7665 	    new_unnamed |= CLIP_UNNAMED;
7666 	    p += 7;
7667 	}
7668 	else if (STRNCMP(p, "unnamedplus", 11) == 0
7669 					    && (p[11] == ',' || p[11] == NUL))
7670 	{
7671 	    new_unnamed |= CLIP_UNNAMED_PLUS;
7672 	    p += 11;
7673 	}
7674 	else if (STRNCMP(p, "autoselect", 10) == 0
7675 					    && (p[10] == ',' || p[10] == NUL))
7676 	{
7677 	    new_autoselect_star = TRUE;
7678 	    p += 10;
7679 	}
7680 	else if (STRNCMP(p, "autoselectplus", 14) == 0
7681 					    && (p[14] == ',' || p[14] == NUL))
7682 	{
7683 	    new_autoselect_plus = TRUE;
7684 	    p += 14;
7685 	}
7686 	else if (STRNCMP(p, "autoselectml", 12) == 0
7687 					    && (p[12] == ',' || p[12] == NUL))
7688 	{
7689 	    new_autoselectml = TRUE;
7690 	    p += 12;
7691 	}
7692 	else if (STRNCMP(p, "html", 4) == 0 && (p[4] == ',' || p[4] == NUL))
7693 	{
7694 	    new_html = TRUE;
7695 	    p += 4;
7696 	}
7697 	else if (STRNCMP(p, "exclude:", 8) == 0 && new_exclude_prog == NULL)
7698 	{
7699 	    p += 8;
7700 	    new_exclude_prog = vim_regcomp(p, RE_MAGIC);
7701 	    if (new_exclude_prog == NULL)
7702 		errmsg = e_invarg;
7703 	    break;
7704 	}
7705 	else
7706 	{
7707 	    errmsg = e_invarg;
7708 	    break;
7709 	}
7710 	if (*p == ',')
7711 	    ++p;
7712     }
7713     if (errmsg == NULL)
7714     {
7715 	clip_unnamed = new_unnamed;
7716 	clip_autoselect_star = new_autoselect_star;
7717 	clip_autoselect_plus = new_autoselect_plus;
7718 	clip_autoselectml = new_autoselectml;
7719 	clip_html = new_html;
7720 	vim_regfree(clip_exclude_prog);
7721 	clip_exclude_prog = new_exclude_prog;
7722 #ifdef FEAT_GUI_GTK
7723 	if (gui.in_use)
7724 	{
7725 	    gui_gtk_set_selection_targets();
7726 	    gui_gtk_set_dnd_targets();
7727 	}
7728 #endif
7729     }
7730     else
7731 	vim_regfree(new_exclude_prog);
7732 
7733     return errmsg;
7734 }
7735 #endif
7736 
7737 #ifdef FEAT_SPELL
7738     static char_u *
7739 did_set_spell_option(is_spellfile)
7740     int		is_spellfile;
7741 {
7742     char_u  *errmsg = NULL;
7743     win_T   *wp;
7744     int	    l;
7745 
7746     if (is_spellfile)
7747     {
7748 	l = (int)STRLEN(curwin->w_s->b_p_spf);
7749 	if (l > 0 && (l < 4
7750 			|| STRCMP(curwin->w_s->b_p_spf + l - 4, ".add") != 0))
7751 	    errmsg = e_invarg;
7752     }
7753 
7754     if (errmsg == NULL)
7755     {
7756 	FOR_ALL_WINDOWS(wp)
7757 	    if (wp->w_buffer == curbuf && wp->w_p_spell)
7758 	    {
7759 		errmsg = did_set_spelllang(wp);
7760 # ifdef FEAT_WINDOWS
7761 		break;
7762 # endif
7763 	    }
7764     }
7765     return errmsg;
7766 }
7767 
7768 /*
7769  * Set curbuf->b_cap_prog to the regexp program for 'spellcapcheck'.
7770  * Return error message when failed, NULL when OK.
7771  */
7772     static char_u *
7773 compile_cap_prog(synblock)
7774     synblock_T *synblock;
7775 {
7776     regprog_T   *rp = synblock->b_cap_prog;
7777     char_u	*re;
7778 
7779     if (*synblock->b_p_spc == NUL)
7780 	synblock->b_cap_prog = NULL;
7781     else
7782     {
7783 	/* Prepend a ^ so that we only match at one column */
7784 	re = concat_str((char_u *)"^", synblock->b_p_spc);
7785 	if (re != NULL)
7786 	{
7787 	    synblock->b_cap_prog = vim_regcomp(re, RE_MAGIC);
7788 	    vim_free(re);
7789 	    if (synblock->b_cap_prog == NULL)
7790 	    {
7791 		synblock->b_cap_prog = rp; /* restore the previous program */
7792 		return e_invarg;
7793 	    }
7794 	}
7795     }
7796 
7797     vim_regfree(rp);
7798     return NULL;
7799 }
7800 #endif
7801 
7802 #if defined(FEAT_EVAL) || defined(PROTO)
7803 /*
7804  * Set the scriptID for an option, taking care of setting the buffer- or
7805  * window-local value.
7806  */
7807     static void
7808 set_option_scriptID_idx(opt_idx, opt_flags, id)
7809     int	    opt_idx;
7810     int	    opt_flags;
7811     int	    id;
7812 {
7813     int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
7814     int		indir = (int)options[opt_idx].indir;
7815 
7816     /* Remember where the option was set.  For local options need to do that
7817      * in the buffer or window structure. */
7818     if (both || (opt_flags & OPT_GLOBAL) || (indir & (PV_BUF|PV_WIN)) == 0)
7819 	options[opt_idx].scriptID = id;
7820     if (both || (opt_flags & OPT_LOCAL))
7821     {
7822 	if (indir & PV_BUF)
7823 	    curbuf->b_p_scriptID[indir & PV_MASK] = id;
7824 	else if (indir & PV_WIN)
7825 	    curwin->w_p_scriptID[indir & PV_MASK] = id;
7826     }
7827 }
7828 #endif
7829 
7830 /*
7831  * Set the value of a boolean option, and take care of side effects.
7832  * Returns NULL for success, or an error message for an error.
7833  */
7834     static char_u *
7835 set_bool_option(opt_idx, varp, value, opt_flags)
7836     int		opt_idx;		/* index in options[] table */
7837     char_u	*varp;			/* pointer to the option variable */
7838     int		value;			/* new value */
7839     int		opt_flags;		/* OPT_LOCAL and/or OPT_GLOBAL */
7840 {
7841     int		old_value = *(int *)varp;
7842 
7843     /* Disallow changing some options from secure mode */
7844     if ((secure
7845 #ifdef HAVE_SANDBOX
7846 		|| sandbox != 0
7847 #endif
7848 		) && (options[opt_idx].flags & P_SECURE))
7849 	return e_secure;
7850 
7851     *(int *)varp = value;	    /* set the new value */
7852 #ifdef FEAT_EVAL
7853     /* Remember where the option was set. */
7854     set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
7855 #endif
7856 
7857 #ifdef FEAT_GUI
7858     need_mouse_correct = TRUE;
7859 #endif
7860 
7861     /* May set global value for local option. */
7862     if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
7863 	*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = value;
7864 
7865     /*
7866      * Handle side effects of changing a bool option.
7867      */
7868 
7869     /* 'compatible' */
7870     if ((int *)varp == &p_cp)
7871     {
7872 	compatible_set();
7873     }
7874 
7875 #ifdef FEAT_PERSISTENT_UNDO
7876     /* 'undofile' */
7877     else if ((int *)varp == &curbuf->b_p_udf || (int *)varp == &p_udf)
7878     {
7879 	/* Only take action when the option was set. When reset we do not
7880 	 * delete the undo file, the option may be set again without making
7881 	 * any changes in between. */
7882 	if (curbuf->b_p_udf || p_udf)
7883 	{
7884 	    char_u	hash[UNDO_HASH_SIZE];
7885 	    buf_T	*save_curbuf = curbuf;
7886 
7887 	    for (curbuf = firstbuf; curbuf != NULL; curbuf = curbuf->b_next)
7888 	    {
7889 		/* When 'undofile' is set globally: for every buffer, otherwise
7890 		 * only for the current buffer: Try to read in the undofile,
7891 		 * if one exists, the buffer wasn't changed and the buffer was
7892 		 * loaded */
7893 		if ((curbuf == save_curbuf
7894 				|| (opt_flags & OPT_GLOBAL) || opt_flags == 0)
7895 			&& !curbufIsChanged() && curbuf->b_ml.ml_mfp != NULL)
7896 		{
7897 		    u_compute_hash(hash);
7898 		    u_read_undo(NULL, hash, curbuf->b_fname);
7899 		}
7900 	    }
7901 	    curbuf = save_curbuf;
7902 	}
7903     }
7904 #endif
7905 
7906     else if ((int *)varp == &curbuf->b_p_ro)
7907     {
7908 	/* when 'readonly' is reset globally, also reset readonlymode */
7909 	if (!curbuf->b_p_ro && (opt_flags & OPT_LOCAL) == 0)
7910 	    readonlymode = FALSE;
7911 
7912 	/* when 'readonly' is set may give W10 again */
7913 	if (curbuf->b_p_ro)
7914 	    curbuf->b_did_warn = FALSE;
7915 
7916 #ifdef FEAT_TITLE
7917 	redraw_titles();
7918 #endif
7919     }
7920 
7921 #ifdef FEAT_GUI
7922     else if ((int *)varp == &p_mh)
7923     {
7924 	if (!p_mh)
7925 	    gui_mch_mousehide(FALSE);
7926     }
7927 #endif
7928 
7929 #ifdef FEAT_TITLE
7930     /* when 'modifiable' is changed, redraw the window title */
7931     else if ((int *)varp == &curbuf->b_p_ma)
7932     {
7933 	redraw_titles();
7934     }
7935     /* when 'endofline' is changed, redraw the window title */
7936     else if ((int *)varp == &curbuf->b_p_eol)
7937     {
7938 	redraw_titles();
7939     }
7940     /* when 'fixeol' is changed, redraw the window title */
7941     else if ((int *)varp == &curbuf->b_p_fixeol)
7942     {
7943 	redraw_titles();
7944     }
7945 # ifdef FEAT_MBYTE
7946     /* when 'bomb' is changed, redraw the window title and tab page text */
7947     else if ((int *)varp == &curbuf->b_p_bomb)
7948     {
7949 	redraw_titles();
7950     }
7951 # endif
7952 #endif
7953 
7954     /* when 'bin' is set also set some other options */
7955     else if ((int *)varp == &curbuf->b_p_bin)
7956     {
7957 	set_options_bin(old_value, curbuf->b_p_bin, opt_flags);
7958 #ifdef FEAT_TITLE
7959 	redraw_titles();
7960 #endif
7961     }
7962 
7963 #ifdef FEAT_AUTOCMD
7964     /* when 'buflisted' changes, trigger autocommands */
7965     else if ((int *)varp == &curbuf->b_p_bl && old_value != curbuf->b_p_bl)
7966     {
7967 	apply_autocmds(curbuf->b_p_bl ? EVENT_BUFADD : EVENT_BUFDELETE,
7968 						    NULL, NULL, TRUE, curbuf);
7969     }
7970 #endif
7971 
7972     /* when 'swf' is set, create swapfile, when reset remove swapfile */
7973     else if ((int *)varp == &curbuf->b_p_swf)
7974     {
7975 	if (curbuf->b_p_swf && p_uc)
7976 	    ml_open_file(curbuf);		/* create the swap file */
7977 	else
7978 	    /* no need to reset curbuf->b_may_swap, ml_open_file() will check
7979 	     * buf->b_p_swf */
7980 	    mf_close_file(curbuf, TRUE);	/* remove the swap file */
7981     }
7982 
7983     /* when 'terse' is set change 'shortmess' */
7984     else if ((int *)varp == &p_terse)
7985     {
7986 	char_u	*p;
7987 
7988 	p = vim_strchr(p_shm, SHM_SEARCH);
7989 
7990 	/* insert 's' in p_shm */
7991 	if (p_terse && p == NULL)
7992 	{
7993 	    STRCPY(IObuff, p_shm);
7994 	    STRCAT(IObuff, "s");
7995 	    set_string_option_direct((char_u *)"shm", -1, IObuff, OPT_FREE, 0);
7996 	}
7997 	/* remove 's' from p_shm */
7998 	else if (!p_terse && p != NULL)
7999 	    STRMOVE(p, p + 1);
8000     }
8001 
8002     /* when 'paste' is set or reset also change other options */
8003     else if ((int *)varp == &p_paste)
8004     {
8005 	paste_option_changed();
8006     }
8007 
8008     /* when 'insertmode' is set from an autocommand need to do work here */
8009     else if ((int *)varp == &p_im)
8010     {
8011 	if (p_im)
8012 	{
8013 	    if ((State & INSERT) == 0)
8014 		need_start_insertmode = TRUE;
8015 	    stop_insert_mode = FALSE;
8016 	}
8017 	else
8018 	{
8019 	    need_start_insertmode = FALSE;
8020 	    stop_insert_mode = TRUE;
8021 	    if (restart_edit != 0 && mode_displayed)
8022 		clear_cmdline = TRUE;	/* remove "(insert)" */
8023 	    restart_edit = 0;
8024 	}
8025     }
8026 
8027     /* when 'ignorecase' is set or reset and 'hlsearch' is set, redraw */
8028     else if ((int *)varp == &p_ic && p_hls)
8029     {
8030 	redraw_all_later(SOME_VALID);
8031     }
8032 
8033 #ifdef FEAT_SEARCH_EXTRA
8034     /* when 'hlsearch' is set or reset: reset no_hlsearch */
8035     else if ((int *)varp == &p_hls)
8036     {
8037 	SET_NO_HLSEARCH(FALSE);
8038     }
8039 #endif
8040 
8041 #ifdef FEAT_SCROLLBIND
8042     /* when 'scrollbind' is set: snapshot the current position to avoid a jump
8043      * at the end of normal_cmd() */
8044     else if ((int *)varp == &curwin->w_p_scb)
8045     {
8046 	if (curwin->w_p_scb)
8047 	{
8048 	    do_check_scrollbind(FALSE);
8049 	    curwin->w_scbind_pos = curwin->w_topline;
8050 	}
8051     }
8052 #endif
8053 
8054 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
8055     /* There can be only one window with 'previewwindow' set. */
8056     else if ((int *)varp == &curwin->w_p_pvw)
8057     {
8058 	if (curwin->w_p_pvw)
8059 	{
8060 	    win_T	*win;
8061 
8062 	    for (win = firstwin; win != NULL; win = win->w_next)
8063 		if (win->w_p_pvw && win != curwin)
8064 		{
8065 		    curwin->w_p_pvw = FALSE;
8066 		    return (char_u *)N_("E590: A preview window already exists");
8067 		}
8068 	}
8069     }
8070 #endif
8071 
8072     /* when 'textmode' is set or reset also change 'fileformat' */
8073     else if ((int *)varp == &curbuf->b_p_tx)
8074     {
8075 	set_fileformat(curbuf->b_p_tx ? EOL_DOS : EOL_UNIX, opt_flags);
8076     }
8077 
8078     /* when 'textauto' is set or reset also change 'fileformats' */
8079     else if ((int *)varp == &p_ta)
8080 	set_string_option_direct((char_u *)"ffs", -1,
8081 				 p_ta ? (char_u *)DFLT_FFS_VIM : (char_u *)"",
8082 						     OPT_FREE | opt_flags, 0);
8083 
8084     /*
8085      * When 'lisp' option changes include/exclude '-' in
8086      * keyword characters.
8087      */
8088 #ifdef FEAT_LISP
8089     else if (varp == (char_u *)&(curbuf->b_p_lisp))
8090     {
8091 	(void)buf_init_chartab(curbuf, FALSE);	    /* ignore errors */
8092     }
8093 #endif
8094 
8095 #ifdef FEAT_TITLE
8096     /* when 'title' changed, may need to change the title; same for 'icon' */
8097     else if ((int *)varp == &p_title)
8098     {
8099 	did_set_title(FALSE);
8100     }
8101 
8102     else if ((int *)varp == &p_icon)
8103     {
8104 	did_set_title(TRUE);
8105     }
8106 #endif
8107 
8108     else if ((int *)varp == &curbuf->b_changed)
8109     {
8110 	if (!value)
8111 	    save_file_ff(curbuf);	/* Buffer is unchanged */
8112 #ifdef FEAT_TITLE
8113 	redraw_titles();
8114 #endif
8115 #ifdef FEAT_AUTOCMD
8116 	modified_was_set = value;
8117 #endif
8118     }
8119 
8120 #ifdef BACKSLASH_IN_FILENAME
8121     else if ((int *)varp == &p_ssl)
8122     {
8123 	if (p_ssl)
8124 	{
8125 	    psepc = '/';
8126 	    psepcN = '\\';
8127 	    pseps[0] = '/';
8128 	}
8129 	else
8130 	{
8131 	    psepc = '\\';
8132 	    psepcN = '/';
8133 	    pseps[0] = '\\';
8134 	}
8135 
8136 	/* need to adjust the file name arguments and buffer names. */
8137 	buflist_slash_adjust();
8138 	alist_slash_adjust();
8139 # ifdef FEAT_EVAL
8140 	scriptnames_slash_adjust();
8141 # endif
8142     }
8143 #endif
8144 
8145     /* If 'wrap' is set, set w_leftcol to zero. */
8146     else if ((int *)varp == &curwin->w_p_wrap)
8147     {
8148 	if (curwin->w_p_wrap)
8149 	    curwin->w_leftcol = 0;
8150     }
8151 
8152 #ifdef FEAT_WINDOWS
8153     else if ((int *)varp == &p_ea)
8154     {
8155 	if (p_ea && !old_value)
8156 	    win_equal(curwin, FALSE, 0);
8157     }
8158 #endif
8159 
8160     else if ((int *)varp == &p_wiv)
8161     {
8162 	/*
8163 	 * When 'weirdinvert' changed, set/reset 't_xs'.
8164 	 * Then set 'weirdinvert' according to value of 't_xs'.
8165 	 */
8166 	if (p_wiv && !old_value)
8167 	    T_XS = (char_u *)"y";
8168 	else if (!p_wiv && old_value)
8169 	    T_XS = empty_option;
8170 	p_wiv = (*T_XS != NUL);
8171     }
8172 
8173 #ifdef FEAT_BEVAL
8174     else if ((int *)varp == &p_beval)
8175     {
8176 	if (p_beval && !old_value)
8177 	    gui_mch_enable_beval_area(balloonEval);
8178 	else if (!p_beval && old_value)
8179 	    gui_mch_disable_beval_area(balloonEval);
8180     }
8181 #endif
8182 
8183 #ifdef FEAT_AUTOCHDIR
8184     else if ((int *)varp == &p_acd)
8185     {
8186 	/* Change directories when the 'acd' option is set now. */
8187 	DO_AUTOCHDIR
8188     }
8189 #endif
8190 
8191 #ifdef FEAT_DIFF
8192     /* 'diff' */
8193     else if ((int *)varp == &curwin->w_p_diff)
8194     {
8195 	/* May add or remove the buffer from the list of diff buffers. */
8196 	diff_buf_adjust(curwin);
8197 # ifdef FEAT_FOLDING
8198 	if (foldmethodIsDiff(curwin))
8199 	    foldUpdateAll(curwin);
8200 # endif
8201     }
8202 #endif
8203 
8204 #ifdef USE_IM_CONTROL
8205     /* 'imdisable' */
8206     else if ((int *)varp == &p_imdisable)
8207     {
8208 	/* Only de-activate it here, it will be enabled when changing mode. */
8209 	if (p_imdisable)
8210 	    im_set_active(FALSE);
8211 	else if (State & INSERT)
8212 	    /* When the option is set from an autocommand, it may need to take
8213 	     * effect right away. */
8214 	    im_set_active(curbuf->b_p_iminsert == B_IMODE_IM);
8215     }
8216 #endif
8217 
8218 #ifdef FEAT_SPELL
8219     /* 'spell' */
8220     else if ((int *)varp == &curwin->w_p_spell)
8221     {
8222 	if (curwin->w_p_spell)
8223 	{
8224 	    char_u	*errmsg = did_set_spelllang(curwin);
8225 	    if (errmsg != NULL)
8226 		EMSG(_(errmsg));
8227 	}
8228     }
8229 #endif
8230 
8231 #ifdef FEAT_FKMAP
8232     else if ((int *)varp == &p_altkeymap)
8233     {
8234 	if (old_value != p_altkeymap)
8235 	{
8236 	    if (!p_altkeymap)
8237 	    {
8238 		p_hkmap = p_fkmap;
8239 		p_fkmap = 0;
8240 	    }
8241 	    else
8242 	    {
8243 		p_fkmap = p_hkmap;
8244 		p_hkmap = 0;
8245 	    }
8246 	    (void)init_chartab();
8247 	}
8248     }
8249 
8250     /*
8251      * In case some second language keymapping options have changed, check
8252      * and correct the setting in a consistent way.
8253      */
8254 
8255     /*
8256      * If hkmap or fkmap are set, reset Arabic keymapping.
8257      */
8258     if ((p_hkmap || p_fkmap) && p_altkeymap)
8259     {
8260 	p_altkeymap = p_fkmap;
8261 # ifdef FEAT_ARABIC
8262 	curwin->w_p_arab = FALSE;
8263 # endif
8264 	(void)init_chartab();
8265     }
8266 
8267     /*
8268      * If hkmap set, reset Farsi keymapping.
8269      */
8270     if (p_hkmap && p_altkeymap)
8271     {
8272 	p_altkeymap = 0;
8273 	p_fkmap = 0;
8274 # ifdef FEAT_ARABIC
8275 	curwin->w_p_arab = FALSE;
8276 # endif
8277 	(void)init_chartab();
8278     }
8279 
8280     /*
8281      * If fkmap set, reset Hebrew keymapping.
8282      */
8283     if (p_fkmap && !p_altkeymap)
8284     {
8285 	p_altkeymap = 1;
8286 	p_hkmap = 0;
8287 # ifdef FEAT_ARABIC
8288 	curwin->w_p_arab = FALSE;
8289 # endif
8290 	(void)init_chartab();
8291     }
8292 #endif
8293 
8294 #ifdef FEAT_ARABIC
8295     if ((int *)varp == &curwin->w_p_arab)
8296     {
8297 	if (curwin->w_p_arab)
8298 	{
8299 	    /*
8300 	     * 'arabic' is set, handle various sub-settings.
8301 	     */
8302 	    if (!p_tbidi)
8303 	    {
8304 		/* set rightleft mode */
8305 		if (!curwin->w_p_rl)
8306 		{
8307 		    curwin->w_p_rl = TRUE;
8308 		    changed_window_setting();
8309 		}
8310 
8311 		/* Enable Arabic shaping (major part of what Arabic requires) */
8312 		if (!p_arshape)
8313 		{
8314 		    p_arshape = TRUE;
8315 		    redraw_later_clear();
8316 		}
8317 	    }
8318 
8319 	    /* Arabic requires a utf-8 encoding, inform the user if its not
8320 	     * set. */
8321 	    if (STRCMP(p_enc, "utf-8") != 0)
8322 	    {
8323 		static char *w_arabic = N_("W17: Arabic requires UTF-8, do ':set encoding=utf-8'");
8324 
8325 		msg_source(hl_attr(HLF_W));
8326 		MSG_ATTR(_(w_arabic), hl_attr(HLF_W));
8327 #ifdef FEAT_EVAL
8328 		set_vim_var_string(VV_WARNINGMSG, (char_u *)_(w_arabic), -1);
8329 #endif
8330 	    }
8331 
8332 # ifdef FEAT_MBYTE
8333 	    /* set 'delcombine' */
8334 	    p_deco = TRUE;
8335 # endif
8336 
8337 # ifdef FEAT_KEYMAP
8338 	    /* Force-set the necessary keymap for arabic */
8339 	    set_option_value((char_u *)"keymap", 0L, (char_u *)"arabic",
8340 								   OPT_LOCAL);
8341 # endif
8342 # ifdef FEAT_FKMAP
8343 	    p_altkeymap = 0;
8344 	    p_hkmap = 0;
8345 	    p_fkmap = 0;
8346 	    (void)init_chartab();
8347 # endif
8348 	}
8349 	else
8350 	{
8351 	    /*
8352 	     * 'arabic' is reset, handle various sub-settings.
8353 	     */
8354 	    if (!p_tbidi)
8355 	    {
8356 		/* reset rightleft mode */
8357 		if (curwin->w_p_rl)
8358 		{
8359 		    curwin->w_p_rl = FALSE;
8360 		    changed_window_setting();
8361 		}
8362 
8363 		/* 'arabicshape' isn't reset, it is a global option and
8364 		 * another window may still need it "on". */
8365 	    }
8366 
8367 	    /* 'delcombine' isn't reset, it is a global option and another
8368 	     * window may still want it "on". */
8369 
8370 # ifdef FEAT_KEYMAP
8371 	    /* Revert to the default keymap */
8372 	    curbuf->b_p_iminsert = B_IMODE_NONE;
8373 	    curbuf->b_p_imsearch = B_IMODE_USE_INSERT;
8374 # endif
8375 	}
8376     }
8377 
8378 #endif
8379 
8380     /*
8381      * End of handling side effects for bool options.
8382      */
8383 
8384     /* after handling side effects, call autocommand */
8385 
8386     options[opt_idx].flags |= P_WAS_SET;
8387 
8388 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
8389     if (!starting)
8390     {
8391 	char_u buf_old[2], buf_new[2], buf_type[7];
8392 	vim_snprintf((char *)buf_old, 2, "%d", old_value ? TRUE: FALSE);
8393 	vim_snprintf((char *)buf_new, 2, "%d", value ? TRUE: FALSE);
8394 	vim_snprintf((char *)buf_type, 7, "%s", (opt_flags & OPT_LOCAL) ? "local" : "global");
8395 	set_vim_var_string(VV_OPTION_NEW, buf_new, -1);
8396 	set_vim_var_string(VV_OPTION_OLD, buf_old, -1);
8397 	set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
8398 	apply_autocmds(EVENT_OPTIONSET, (char_u *) options[opt_idx].fullname, NULL, FALSE, NULL);
8399 	reset_v_option_vars();
8400     }
8401 #endif
8402 
8403     comp_col();			    /* in case 'ruler' or 'showcmd' changed */
8404     if (curwin->w_curswant != MAXCOL
8405 		     && (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0)
8406 	curwin->w_set_curswant = TRUE;
8407     check_redraw(options[opt_idx].flags);
8408 
8409     return NULL;
8410 }
8411 
8412 /*
8413  * Set the value of a number option, and take care of side effects.
8414  * Returns NULL for success, or an error message for an error.
8415  */
8416     static char_u *
8417 set_num_option(opt_idx, varp, value, errbuf, errbuflen, opt_flags)
8418     int		opt_idx;		/* index in options[] table */
8419     char_u	*varp;			/* pointer to the option variable */
8420     long	value;			/* new value */
8421     char_u	*errbuf;		/* buffer for error messages */
8422     size_t	errbuflen;		/* length of "errbuf" */
8423     int		opt_flags;		/* OPT_LOCAL, OPT_GLOBAL and
8424 					   OPT_MODELINE */
8425 {
8426     char_u	*errmsg = NULL;
8427     long	old_value = *(long *)varp;
8428     long	old_Rows = Rows;	/* remember old Rows */
8429     long	old_Columns = Columns;	/* remember old Columns */
8430     long	*pp = (long *)varp;
8431 
8432     /* Disallow changing some options from secure mode. */
8433     if ((secure
8434 #ifdef HAVE_SANDBOX
8435 		|| sandbox != 0
8436 #endif
8437 		) && (options[opt_idx].flags & P_SECURE))
8438 	return e_secure;
8439 
8440     *pp = value;
8441 #ifdef FEAT_EVAL
8442     /* Remember where the option was set. */
8443     set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
8444 #endif
8445 #ifdef FEAT_GUI
8446     need_mouse_correct = TRUE;
8447 #endif
8448 
8449     if (curbuf->b_p_sw < 0)
8450     {
8451 	errmsg = e_positive;
8452 	curbuf->b_p_sw = curbuf->b_p_ts;
8453     }
8454 
8455     /*
8456      * Number options that need some action when changed
8457      */
8458 #ifdef FEAT_WINDOWS
8459     if (pp == &p_wh || pp == &p_hh)
8460     {
8461 	if (p_wh < 1)
8462 	{
8463 	    errmsg = e_positive;
8464 	    p_wh = 1;
8465 	}
8466 	if (p_wmh > p_wh)
8467 	{
8468 	    errmsg = e_winheight;
8469 	    p_wh = p_wmh;
8470 	}
8471 	if (p_hh < 0)
8472 	{
8473 	    errmsg = e_positive;
8474 	    p_hh = 0;
8475 	}
8476 
8477 	/* Change window height NOW */
8478 	if (lastwin != firstwin)
8479 	{
8480 	    if (pp == &p_wh && curwin->w_height < p_wh)
8481 		win_setheight((int)p_wh);
8482 	    if (pp == &p_hh && curbuf->b_help && curwin->w_height < p_hh)
8483 		win_setheight((int)p_hh);
8484 	}
8485     }
8486 
8487     /* 'winminheight' */
8488     else if (pp == &p_wmh)
8489     {
8490 	if (p_wmh < 0)
8491 	{
8492 	    errmsg = e_positive;
8493 	    p_wmh = 0;
8494 	}
8495 	if (p_wmh > p_wh)
8496 	{
8497 	    errmsg = e_winheight;
8498 	    p_wmh = p_wh;
8499 	}
8500 	win_setminheight();
8501     }
8502 
8503 # ifdef FEAT_VERTSPLIT
8504     else if (pp == &p_wiw)
8505     {
8506 	if (p_wiw < 1)
8507 	{
8508 	    errmsg = e_positive;
8509 	    p_wiw = 1;
8510 	}
8511 	if (p_wmw > p_wiw)
8512 	{
8513 	    errmsg = e_winwidth;
8514 	    p_wiw = p_wmw;
8515 	}
8516 
8517 	/* Change window width NOW */
8518 	if (lastwin != firstwin && curwin->w_width < p_wiw)
8519 	    win_setwidth((int)p_wiw);
8520     }
8521 
8522     /* 'winminwidth' */
8523     else if (pp == &p_wmw)
8524     {
8525 	if (p_wmw < 0)
8526 	{
8527 	    errmsg = e_positive;
8528 	    p_wmw = 0;
8529 	}
8530 	if (p_wmw > p_wiw)
8531 	{
8532 	    errmsg = e_winwidth;
8533 	    p_wmw = p_wiw;
8534 	}
8535 	win_setminheight();
8536     }
8537 # endif
8538 
8539 #endif
8540 
8541 #ifdef FEAT_WINDOWS
8542     /* (re)set last window status line */
8543     else if (pp == &p_ls)
8544     {
8545 	last_status(FALSE);
8546     }
8547 
8548     /* (re)set tab page line */
8549     else if (pp == &p_stal)
8550     {
8551 	shell_new_rows();	/* recompute window positions and heights */
8552     }
8553 #endif
8554 
8555 #ifdef FEAT_GUI
8556     else if (pp == &p_linespace)
8557     {
8558 	/* Recompute gui.char_height and resize the Vim window to keep the
8559 	 * same number of lines. */
8560 	if (gui.in_use && gui_mch_adjust_charheight() == OK)
8561 	    gui_set_shellsize(FALSE, FALSE, RESIZE_VERT);
8562     }
8563 #endif
8564 
8565 #ifdef FEAT_FOLDING
8566     /* 'foldlevel' */
8567     else if (pp == &curwin->w_p_fdl)
8568     {
8569 	if (curwin->w_p_fdl < 0)
8570 	    curwin->w_p_fdl = 0;
8571 	newFoldLevel();
8572     }
8573 
8574     /* 'foldminlines' */
8575     else if (pp == &curwin->w_p_fml)
8576     {
8577 	foldUpdateAll(curwin);
8578     }
8579 
8580     /* 'foldnestmax' */
8581     else if (pp == &curwin->w_p_fdn)
8582     {
8583 	if (foldmethodIsSyntax(curwin) || foldmethodIsIndent(curwin))
8584 	    foldUpdateAll(curwin);
8585     }
8586 
8587     /* 'foldcolumn' */
8588     else if (pp == &curwin->w_p_fdc)
8589     {
8590 	if (curwin->w_p_fdc < 0)
8591 	{
8592 	    errmsg = e_positive;
8593 	    curwin->w_p_fdc = 0;
8594 	}
8595 	else if (curwin->w_p_fdc > 12)
8596 	{
8597 	    errmsg = e_invarg;
8598 	    curwin->w_p_fdc = 12;
8599 	}
8600     }
8601 #endif /* FEAT_FOLDING */
8602 
8603 #if defined(FEAT_FOLDING) || defined(FEAT_CINDENT)
8604     /* 'shiftwidth' or 'tabstop' */
8605     else if (pp == &curbuf->b_p_sw || pp == &curbuf->b_p_ts)
8606     {
8607 # ifdef FEAT_FOLDING
8608 	if (foldmethodIsIndent(curwin))
8609 	    foldUpdateAll(curwin);
8610 # endif
8611 # ifdef FEAT_CINDENT
8612 	/* When 'shiftwidth' changes, or it's zero and 'tabstop' changes:
8613 	 * parse 'cinoptions'. */
8614 	if (pp == &curbuf->b_p_sw || curbuf->b_p_sw == 0)
8615 	    parse_cino(curbuf);
8616 # endif
8617     }
8618 #endif
8619 
8620 #ifdef FEAT_MBYTE
8621     /* 'maxcombine' */
8622     else if (pp == &p_mco)
8623     {
8624 	if (p_mco > MAX_MCO)
8625 	    p_mco = MAX_MCO;
8626 	else if (p_mco < 0)
8627 	    p_mco = 0;
8628 	screenclear();	    /* will re-allocate the screen */
8629     }
8630 #endif
8631 
8632     else if (pp == &curbuf->b_p_iminsert)
8633     {
8634 	if (curbuf->b_p_iminsert < 0 || curbuf->b_p_iminsert > B_IMODE_LAST)
8635 	{
8636 	    errmsg = e_invarg;
8637 	    curbuf->b_p_iminsert = B_IMODE_NONE;
8638 	}
8639 	p_iminsert = curbuf->b_p_iminsert;
8640 	if (termcap_active)	/* don't do this in the alternate screen */
8641 	    showmode();
8642 #if defined(FEAT_WINDOWS) && defined(FEAT_KEYMAP)
8643 	/* Show/unshow value of 'keymap' in status lines. */
8644 	status_redraw_curbuf();
8645 #endif
8646     }
8647 
8648     else if (pp == &p_window)
8649     {
8650 	if (p_window < 1)
8651 	    p_window = 1;
8652 	else if (p_window >= Rows)
8653 	    p_window = Rows - 1;
8654     }
8655 
8656     else if (pp == &curbuf->b_p_imsearch)
8657     {
8658 	if (curbuf->b_p_imsearch < -1 || curbuf->b_p_imsearch > B_IMODE_LAST)
8659 	{
8660 	    errmsg = e_invarg;
8661 	    curbuf->b_p_imsearch = B_IMODE_NONE;
8662 	}
8663 	p_imsearch = curbuf->b_p_imsearch;
8664     }
8665 
8666 #ifdef FEAT_TITLE
8667     /* if 'titlelen' has changed, redraw the title */
8668     else if (pp == &p_titlelen)
8669     {
8670 	if (p_titlelen < 0)
8671 	{
8672 	    errmsg = e_positive;
8673 	    p_titlelen = 85;
8674 	}
8675 	if (starting != NO_SCREEN && old_value != p_titlelen)
8676 	    need_maketitle = TRUE;
8677     }
8678 #endif
8679 
8680     /* if p_ch changed value, change the command line height */
8681     else if (pp == &p_ch)
8682     {
8683 	if (p_ch < 1)
8684 	{
8685 	    errmsg = e_positive;
8686 	    p_ch = 1;
8687 	}
8688 	if (p_ch > Rows - min_rows() + 1)
8689 	    p_ch = Rows - min_rows() + 1;
8690 
8691 	/* Only compute the new window layout when startup has been
8692 	 * completed. Otherwise the frame sizes may be wrong. */
8693 	if (p_ch != old_value && full_screen
8694 #ifdef FEAT_GUI
8695 		&& !gui.starting
8696 #endif
8697 	   )
8698 	    command_height();
8699     }
8700 
8701     /* when 'updatecount' changes from zero to non-zero, open swap files */
8702     else if (pp == &p_uc)
8703     {
8704 	if (p_uc < 0)
8705 	{
8706 	    errmsg = e_positive;
8707 	    p_uc = 100;
8708 	}
8709 	if (p_uc && !old_value)
8710 	    ml_open_files();
8711     }
8712 #ifdef FEAT_CONCEAL
8713     else if (pp == &curwin->w_p_cole)
8714     {
8715 	if (curwin->w_p_cole < 0)
8716 	{
8717 	    errmsg = e_positive;
8718 	    curwin->w_p_cole = 0;
8719 	}
8720 	else if (curwin->w_p_cole > 3)
8721 	{
8722 	    errmsg = e_invarg;
8723 	    curwin->w_p_cole = 3;
8724 	}
8725     }
8726 #endif
8727 #ifdef MZSCHEME_GUI_THREADS
8728     else if (pp == &p_mzq)
8729 	mzvim_reset_timer();
8730 #endif
8731 
8732     /* sync undo before 'undolevels' changes */
8733     else if (pp == &p_ul)
8734     {
8735 	/* use the old value, otherwise u_sync() may not work properly */
8736 	p_ul = old_value;
8737 	u_sync(TRUE);
8738 	p_ul = value;
8739     }
8740     else if (pp == &curbuf->b_p_ul)
8741     {
8742 	/* use the old value, otherwise u_sync() may not work properly */
8743 	curbuf->b_p_ul = old_value;
8744 	u_sync(TRUE);
8745 	curbuf->b_p_ul = value;
8746     }
8747 
8748 #ifdef FEAT_LINEBREAK
8749     /* 'numberwidth' must be positive */
8750     else if (pp == &curwin->w_p_nuw)
8751     {
8752 	if (curwin->w_p_nuw < 1)
8753 	{
8754 	    errmsg = e_positive;
8755 	    curwin->w_p_nuw = 1;
8756 	}
8757 	if (curwin->w_p_nuw > 10)
8758 	{
8759 	    errmsg = e_invarg;
8760 	    curwin->w_p_nuw = 10;
8761 	}
8762 	curwin->w_nrwidth_line_count = 0; /* trigger a redraw */
8763     }
8764 #endif
8765 
8766     else if (pp == &curbuf->b_p_tw)
8767     {
8768 	if (curbuf->b_p_tw < 0)
8769 	{
8770 	    errmsg = e_positive;
8771 	    curbuf->b_p_tw = 0;
8772 	}
8773 #ifdef FEAT_SYN_HL
8774 # ifdef FEAT_WINDOWS
8775 	{
8776 	    win_T	*wp;
8777 	    tabpage_T	*tp;
8778 
8779 	    FOR_ALL_TAB_WINDOWS(tp, wp)
8780 		check_colorcolumn(wp);
8781 	}
8782 # else
8783 	check_colorcolumn(curwin);
8784 # endif
8785 #endif
8786     }
8787 
8788     /*
8789      * Check the bounds for numeric options here
8790      */
8791     if (Rows < min_rows() && full_screen)
8792     {
8793 	if (errbuf != NULL)
8794 	{
8795 	    vim_snprintf((char *)errbuf, errbuflen,
8796 			       _("E593: Need at least %d lines"), min_rows());
8797 	    errmsg = errbuf;
8798 	}
8799 	Rows = min_rows();
8800     }
8801     if (Columns < MIN_COLUMNS && full_screen)
8802     {
8803 	if (errbuf != NULL)
8804 	{
8805 	    vim_snprintf((char *)errbuf, errbuflen,
8806 			    _("E594: Need at least %d columns"), MIN_COLUMNS);
8807 	    errmsg = errbuf;
8808 	}
8809 	Columns = MIN_COLUMNS;
8810     }
8811     limit_screen_size();
8812 
8813 #ifdef DJGPP
8814     /* avoid a crash by checking for a too large value of 'columns' */
8815     if (old_Columns != Columns && full_screen && term_console)
8816 	mch_check_columns();
8817 #endif
8818 
8819     /*
8820      * If the screen (shell) height has been changed, assume it is the
8821      * physical screenheight.
8822      */
8823     if (old_Rows != Rows || old_Columns != Columns)
8824     {
8825 	/* Changing the screen size is not allowed while updating the screen. */
8826 	if (updating_screen)
8827 	    *pp = old_value;
8828 	else if (full_screen
8829 #ifdef FEAT_GUI
8830 		&& !gui.starting
8831 #endif
8832 	    )
8833 	    set_shellsize((int)Columns, (int)Rows, TRUE);
8834 	else
8835 	{
8836 	    /* Postpone the resizing; check the size and cmdline position for
8837 	     * messages. */
8838 	    check_shellsize();
8839 	    if (cmdline_row > Rows - p_ch && Rows > p_ch)
8840 		cmdline_row = Rows - p_ch;
8841 	}
8842 	if (p_window >= Rows || !option_was_set((char_u *)"window"))
8843 	    p_window = Rows - 1;
8844     }
8845 
8846     if (curbuf->b_p_ts <= 0)
8847     {
8848 	errmsg = e_positive;
8849 	curbuf->b_p_ts = 8;
8850     }
8851     if (p_tm < 0)
8852     {
8853 	errmsg = e_positive;
8854 	p_tm = 0;
8855     }
8856     if ((curwin->w_p_scr <= 0
8857 		|| (curwin->w_p_scr > curwin->w_height
8858 		    && curwin->w_height > 0))
8859 	    && full_screen)
8860     {
8861 	if (pp == &(curwin->w_p_scr))
8862 	{
8863 	    if (curwin->w_p_scr != 0)
8864 		errmsg = e_scroll;
8865 	    win_comp_scroll(curwin);
8866 	}
8867 	/* If 'scroll' became invalid because of a side effect silently adjust
8868 	 * it. */
8869 	else if (curwin->w_p_scr <= 0)
8870 	    curwin->w_p_scr = 1;
8871 	else /* curwin->w_p_scr > curwin->w_height */
8872 	    curwin->w_p_scr = curwin->w_height;
8873     }
8874     if (p_hi < 0)
8875     {
8876 	errmsg = e_positive;
8877 	p_hi = 0;
8878     }
8879     else if (p_hi > 10000)
8880     {
8881 	errmsg = e_invarg;
8882 	p_hi = 10000;
8883     }
8884     if (p_re < 0 || p_re > 2)
8885     {
8886 	errmsg = e_invarg;
8887 	p_re = 0;
8888     }
8889     if (p_report < 0)
8890     {
8891 	errmsg = e_positive;
8892 	p_report = 1;
8893     }
8894     if ((p_sj < -100 || p_sj >= Rows) && full_screen)
8895     {
8896 	if (Rows != old_Rows)	/* Rows changed, just adjust p_sj */
8897 	    p_sj = Rows / 2;
8898 	else
8899 	{
8900 	    errmsg = e_scroll;
8901 	    p_sj = 1;
8902 	}
8903     }
8904     if (p_so < 0 && full_screen)
8905     {
8906 	errmsg = e_scroll;
8907 	p_so = 0;
8908     }
8909     if (p_siso < 0 && full_screen)
8910     {
8911 	errmsg = e_positive;
8912 	p_siso = 0;
8913     }
8914 #ifdef FEAT_CMDWIN
8915     if (p_cwh < 1)
8916     {
8917 	errmsg = e_positive;
8918 	p_cwh = 1;
8919     }
8920 #endif
8921     if (p_ut < 0)
8922     {
8923 	errmsg = e_positive;
8924 	p_ut = 2000;
8925     }
8926     if (p_ss < 0)
8927     {
8928 	errmsg = e_positive;
8929 	p_ss = 0;
8930     }
8931 
8932     /* May set global value for local option. */
8933     if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
8934 	*(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = *pp;
8935 
8936     options[opt_idx].flags |= P_WAS_SET;
8937 
8938 #if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
8939     if (!starting && errmsg == NULL)
8940     {
8941 	char_u buf_old[11], buf_new[11], buf_type[7];
8942 	vim_snprintf((char *)buf_old, 10, "%ld", old_value);
8943 	vim_snprintf((char *)buf_new, 10, "%ld", value);
8944 	vim_snprintf((char *)buf_type, 7, "%s", (opt_flags & OPT_LOCAL) ? "local" : "global");
8945 	set_vim_var_string(VV_OPTION_NEW, buf_new, -1);
8946 	set_vim_var_string(VV_OPTION_OLD, buf_old, -1);
8947 	set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
8948 	apply_autocmds(EVENT_OPTIONSET, (char_u *) options[opt_idx].fullname, NULL, FALSE, NULL);
8949 	reset_v_option_vars();
8950     }
8951 #endif
8952 
8953     comp_col();			    /* in case 'columns' or 'ls' changed */
8954     if (curwin->w_curswant != MAXCOL
8955 		     && (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0)
8956 	curwin->w_set_curswant = TRUE;
8957     check_redraw(options[opt_idx].flags);
8958 
8959     return errmsg;
8960 }
8961 
8962 /*
8963  * Called after an option changed: check if something needs to be redrawn.
8964  */
8965     static void
8966 check_redraw(flags)
8967     long_u	flags;
8968 {
8969     /* Careful: P_RCLR and P_RALL are a combination of other P_ flags */
8970     int		doclear = (flags & P_RCLR) == P_RCLR;
8971     int		all = ((flags & P_RALL) == P_RALL || doclear);
8972 
8973 #ifdef FEAT_WINDOWS
8974     if ((flags & P_RSTAT) || all)	/* mark all status lines dirty */
8975 	status_redraw_all();
8976 #endif
8977 
8978     if ((flags & P_RBUF) || (flags & P_RWIN) || all)
8979 	changed_window_setting();
8980     if (flags & P_RBUF)
8981 	redraw_curbuf_later(NOT_VALID);
8982     if (doclear)
8983 	redraw_all_later(CLEAR);
8984     else if (all)
8985 	redraw_all_later(NOT_VALID);
8986 }
8987 
8988 /*
8989  * Find index for option 'arg'.
8990  * Return -1 if not found.
8991  */
8992     static int
8993 findoption(arg)
8994     char_u *arg;
8995 {
8996     int		    opt_idx;
8997     char	    *s, *p;
8998     static short    quick_tab[27] = {0, 0};	/* quick access table */
8999     int		    is_term_opt;
9000 
9001     /*
9002      * For first call: Initialize the quick-access table.
9003      * It contains the index for the first option that starts with a certain
9004      * letter.  There are 26 letters, plus the first "t_" option.
9005      */
9006     if (quick_tab[1] == 0)
9007     {
9008 	p = options[0].fullname;
9009 	for (opt_idx = 1; (s = options[opt_idx].fullname) != NULL; opt_idx++)
9010 	{
9011 	    if (s[0] != p[0])
9012 	    {
9013 		if (s[0] == 't' && s[1] == '_')
9014 		    quick_tab[26] = opt_idx;
9015 		else
9016 		    quick_tab[CharOrdLow(s[0])] = opt_idx;
9017 	    }
9018 	    p = s;
9019 	}
9020     }
9021 
9022     /*
9023      * Check for name starting with an illegal character.
9024      */
9025 #ifdef EBCDIC
9026     if (!islower(arg[0]))
9027 #else
9028     if (arg[0] < 'a' || arg[0] > 'z')
9029 #endif
9030 	return -1;
9031 
9032     is_term_opt = (arg[0] == 't' && arg[1] == '_');
9033     if (is_term_opt)
9034 	opt_idx = quick_tab[26];
9035     else
9036 	opt_idx = quick_tab[CharOrdLow(arg[0])];
9037     for ( ; (s = options[opt_idx].fullname) != NULL; opt_idx++)
9038     {
9039 	if (STRCMP(arg, s) == 0)		    /* match full name */
9040 	    break;
9041     }
9042     if (s == NULL && !is_term_opt)
9043     {
9044 	opt_idx = quick_tab[CharOrdLow(arg[0])];
9045 	for ( ; options[opt_idx].fullname != NULL; opt_idx++)
9046 	{
9047 	    s = options[opt_idx].shortname;
9048 	    if (s != NULL && STRCMP(arg, s) == 0)   /* match short name */
9049 		break;
9050 	    s = NULL;
9051 	}
9052     }
9053     if (s == NULL)
9054 	opt_idx = -1;
9055     return opt_idx;
9056 }
9057 
9058 #if defined(FEAT_EVAL) || defined(FEAT_TCL) || defined(FEAT_MZSCHEME)
9059 /*
9060  * Get the value for an option.
9061  *
9062  * Returns:
9063  * Number or Toggle option: 1, *numval gets value.
9064  *	     String option: 0, *stringval gets allocated string.
9065  * Hidden Number or Toggle option: -1.
9066  *	     hidden String option: -2.
9067  *		   unknown option: -3.
9068  */
9069     int
9070 get_option_value(name, numval, stringval, opt_flags)
9071     char_u	*name;
9072     long	*numval;
9073     char_u	**stringval;	    /* NULL when only checking existence */
9074     int		opt_flags;
9075 {
9076     int		opt_idx;
9077     char_u	*varp;
9078 
9079     opt_idx = findoption(name);
9080     if (opt_idx < 0)		    /* unknown option */
9081 	return -3;
9082 
9083     varp = get_varp_scope(&(options[opt_idx]), opt_flags);
9084 
9085     if (options[opt_idx].flags & P_STRING)
9086     {
9087 	if (varp == NULL)		    /* hidden option */
9088 	    return -2;
9089 	if (stringval != NULL)
9090 	{
9091 #ifdef FEAT_CRYPT
9092 	    /* never return the value of the crypt key */
9093 	    if ((char_u **)varp == &curbuf->b_p_key
9094 						&& **(char_u **)(varp) != NUL)
9095 		*stringval = vim_strsave((char_u *)"*****");
9096 	    else
9097 #endif
9098 		*stringval = vim_strsave(*(char_u **)(varp));
9099 	}
9100 	return 0;
9101     }
9102 
9103     if (varp == NULL)		    /* hidden option */
9104 	return -1;
9105     if (options[opt_idx].flags & P_NUM)
9106 	*numval = *(long *)varp;
9107     else
9108     {
9109 	/* Special case: 'modified' is b_changed, but we also want to consider
9110 	 * it set when 'ff' or 'fenc' changed. */
9111 	if ((int *)varp == &curbuf->b_changed)
9112 	    *numval = curbufIsChanged();
9113 	else
9114 	    *numval = *(int *)varp;
9115     }
9116     return 1;
9117 }
9118 #endif
9119 
9120 #if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO)
9121 /*
9122  * Returns the option attributes and its value. Unlike the above function it
9123  * will return either global value or local value of the option depending on
9124  * what was requested, but it will never return global value if it was
9125  * requested to return local one and vice versa. Neither it will return
9126  * buffer-local value if it was requested to return window-local one.
9127  *
9128  * Pretends that option is absent if it is not present in the requested scope
9129  * (i.e. has no global, window-local or buffer-local value depending on
9130  * opt_type). Uses
9131  *
9132  * Returned flags:
9133  *       0 hidden or unknown option, also option that does not have requested
9134  *	   type (see SREQ_* in vim.h)
9135  *  see SOPT_* in vim.h for other flags
9136  *
9137  * Possible opt_type values: see SREQ_* in vim.h
9138  */
9139     int
9140 get_option_value_strict(name, numval, stringval, opt_type, from)
9141     char_u	*name;
9142     long	*numval;
9143     char_u	**stringval;	    /* NULL when only obtaining attributes */
9144     int		opt_type;
9145     void	*from;
9146 {
9147     int		opt_idx;
9148     char_u	*varp = NULL;
9149     struct vimoption *p;
9150     int		r = 0;
9151 
9152     opt_idx = findoption(name);
9153     if (opt_idx < 0)
9154 	return 0;
9155 
9156     p = &(options[opt_idx]);
9157 
9158     /* Hidden option */
9159     if (p->var == NULL)
9160 	return 0;
9161 
9162     if (p->flags & P_BOOL)
9163 	r |= SOPT_BOOL;
9164     else if (p->flags & P_NUM)
9165 	r |= SOPT_NUM;
9166     else if (p->flags & P_STRING)
9167 	r |= SOPT_STRING;
9168 
9169     if (p->indir == PV_NONE)
9170     {
9171 	if (opt_type == SREQ_GLOBAL)
9172 	    r |= SOPT_GLOBAL;
9173 	else
9174 	    return 0; /* Did not request global-only option */
9175     }
9176     else
9177     {
9178 	if (p->indir & PV_BOTH)
9179 	    r |= SOPT_GLOBAL;
9180 	else if (opt_type == SREQ_GLOBAL)
9181 	    return 0; /* Requested global option */
9182 
9183 	if (p->indir & PV_WIN)
9184 	{
9185 	    if (opt_type == SREQ_BUF)
9186 		return 0; /* Did not request window-local option */
9187 	    else
9188 		r |= SOPT_WIN;
9189 	}
9190 	else if (p->indir & PV_BUF)
9191 	{
9192 	    if (opt_type == SREQ_WIN)
9193 		return 0; /* Did not request buffer-local option */
9194 	    else
9195 		r |= SOPT_BUF;
9196 	}
9197     }
9198 
9199     if (stringval == NULL)
9200 	return r;
9201 
9202     if (opt_type == SREQ_GLOBAL)
9203 	varp = p->var;
9204     else
9205     {
9206 	if (opt_type == SREQ_BUF)
9207 	{
9208 	    /* Special case: 'modified' is b_changed, but we also want to
9209 	     * consider it set when 'ff' or 'fenc' changed. */
9210 	    if (p->indir == PV_MOD)
9211 	    {
9212 		*numval = bufIsChanged((buf_T *) from);
9213 		varp = NULL;
9214 	    }
9215 #ifdef FEAT_CRYPT
9216 	    else if (p->indir == PV_KEY)
9217 	    {
9218 		/* never return the value of the crypt key */
9219 		*stringval = NULL;
9220 		varp = NULL;
9221 	    }
9222 #endif
9223 	    else
9224 	    {
9225 		aco_save_T	aco;
9226 		aucmd_prepbuf(&aco, (buf_T *) from);
9227 		varp = get_varp(p);
9228 		aucmd_restbuf(&aco);
9229 	    }
9230 	}
9231 	else if (opt_type == SREQ_WIN)
9232 	{
9233 	    win_T	*save_curwin;
9234 	    save_curwin = curwin;
9235 	    curwin = (win_T *) from;
9236 	    curbuf = curwin->w_buffer;
9237 	    varp = get_varp(p);
9238 	    curwin = save_curwin;
9239 	    curbuf = curwin->w_buffer;
9240 	}
9241 	if (varp == p->var)
9242 	    return (r | SOPT_UNSET);
9243     }
9244 
9245     if (varp != NULL)
9246     {
9247 	if (p->flags & P_STRING)
9248 	    *stringval = vim_strsave(*(char_u **)(varp));
9249 	else if (p->flags & P_NUM)
9250 	    *numval = *(long *) varp;
9251 	else
9252 	    *numval = *(int *)varp;
9253     }
9254 
9255     return r;
9256 }
9257 
9258 /*
9259  * Iterate over options. First argument is a pointer to a pointer to a
9260  * structure inside options[] array, second is option type like in the above
9261  * function.
9262  *
9263  * If first argument points to NULL it is assumed that iteration just started
9264  * and caller needs the very first value.
9265  * If first argument points to the end marker function returns NULL and sets
9266  * first argument to NULL.
9267  *
9268  * Returns full option name for current option on each call.
9269  */
9270     char_u *
9271 option_iter_next(option, opt_type)
9272     void	**option;
9273     int		opt_type;
9274 {
9275     struct vimoption	*ret = NULL;
9276     do
9277     {
9278 	if (*option == NULL)
9279 	    *option = (void *) options;
9280 	else if (((struct vimoption *) (*option))->fullname == NULL)
9281 	{
9282 	    *option = NULL;
9283 	    return NULL;
9284 	}
9285 	else
9286 	    *option = (void *) (((struct vimoption *) (*option)) + 1);
9287 
9288 	ret = ((struct vimoption *) (*option));
9289 
9290 	/* Hidden option */
9291 	if (ret->var == NULL)
9292 	{
9293 	    ret = NULL;
9294 	    continue;
9295 	}
9296 
9297 	switch (opt_type)
9298 	{
9299 	    case SREQ_GLOBAL:
9300 		if (!(ret->indir == PV_NONE || ret->indir & PV_BOTH))
9301 		    ret = NULL;
9302 		break;
9303 	    case SREQ_BUF:
9304 		if (!(ret->indir & PV_BUF))
9305 		    ret = NULL;
9306 		break;
9307 	    case SREQ_WIN:
9308 		if (!(ret->indir & PV_WIN))
9309 		    ret = NULL;
9310 		break;
9311 	    default:
9312 		EMSG2(_(e_intern2), "option_iter_next()");
9313 		return NULL;
9314 	}
9315     }
9316     while (ret == NULL);
9317 
9318     return (char_u *)ret->fullname;
9319 }
9320 #endif
9321 
9322 /*
9323  * Set the value of option "name".
9324  * Use "string" for string options, use "number" for other options.
9325  *
9326  * Returns NULL on success or error message on error.
9327  */
9328     char_u *
9329 set_option_value(name, number, string, opt_flags)
9330     char_u	*name;
9331     long	number;
9332     char_u	*string;
9333     int		opt_flags;	/* OPT_LOCAL or 0 (both) */
9334 {
9335     int		opt_idx;
9336     char_u	*varp;
9337     long_u	flags;
9338 
9339     opt_idx = findoption(name);
9340     if (opt_idx < 0)
9341 	EMSG2(_("E355: Unknown option: %s"), name);
9342     else
9343     {
9344 	flags = options[opt_idx].flags;
9345 #ifdef HAVE_SANDBOX
9346 	/* Disallow changing some options in the sandbox */
9347 	if (sandbox > 0 && (flags & P_SECURE))
9348 	{
9349 	    EMSG(_(e_sandbox));
9350 	    return NULL;
9351 	}
9352 #endif
9353 	if (flags & P_STRING)
9354 	    return set_string_option(opt_idx, string, opt_flags);
9355 	else
9356 	{
9357 	    varp = get_varp_scope(&(options[opt_idx]), opt_flags);
9358 	    if (varp != NULL)	/* hidden option is not changed */
9359 	    {
9360 		if (number == 0 && string != NULL)
9361 		{
9362 		    int idx;
9363 
9364 		    /* Either we are given a string or we are setting option
9365 		     * to zero. */
9366 		    for (idx = 0; string[idx] == '0'; ++idx)
9367 			;
9368 		    if (string[idx] != NUL || idx == 0)
9369 		    {
9370 			/* There's another character after zeros or the string
9371 			 * is empty.  In both cases, we are trying to set a
9372 			 * num option using a string. */
9373 			EMSG3(_("E521: Number required: &%s = '%s'"),
9374 								name, string);
9375 			return NULL;     /* do nothing as we hit an error */
9376 
9377 		    }
9378 		}
9379 		if (flags & P_NUM)
9380 		    return set_num_option(opt_idx, varp, number,
9381 							  NULL, 0, opt_flags);
9382 		else
9383 		    return set_bool_option(opt_idx, varp, (int)number,
9384 								   opt_flags);
9385 	    }
9386 	}
9387     }
9388     return NULL;
9389 }
9390 
9391 /*
9392  * Get the terminal code for a terminal option.
9393  * Returns NULL when not found.
9394  */
9395     char_u *
9396 get_term_code(tname)
9397     char_u	*tname;
9398 {
9399     int	    opt_idx;
9400     char_u  *varp;
9401 
9402     if (tname[0] != 't' || tname[1] != '_' ||
9403 	    tname[2] == NUL || tname[3] == NUL)
9404 	return NULL;
9405     if ((opt_idx = findoption(tname)) >= 0)
9406     {
9407 	varp = get_varp(&(options[opt_idx]));
9408 	if (varp != NULL)
9409 	    varp = *(char_u **)(varp);
9410 	return varp;
9411     }
9412     return find_termcode(tname + 2);
9413 }
9414 
9415     char_u *
9416 get_highlight_default()
9417 {
9418     int i;
9419 
9420     i = findoption((char_u *)"hl");
9421     if (i >= 0)
9422 	return options[i].def_val[VI_DEFAULT];
9423     return (char_u *)NULL;
9424 }
9425 
9426 #if defined(FEAT_MBYTE) || defined(PROTO)
9427     char_u *
9428 get_encoding_default()
9429 {
9430     int i;
9431 
9432     i = findoption((char_u *)"enc");
9433     if (i >= 0)
9434 	return options[i].def_val[VI_DEFAULT];
9435     return (char_u *)NULL;
9436 }
9437 #endif
9438 
9439 /*
9440  * Translate a string like "t_xx", "<t_xx>" or "<S-Tab>" to a key number.
9441  */
9442     static int
9443 find_key_option(arg)
9444     char_u *arg;
9445 {
9446     int		key;
9447     int		modifiers;
9448 
9449     /*
9450      * Don't use get_special_key_code() for t_xx, we don't want it to call
9451      * add_termcap_entry().
9452      */
9453     if (arg[0] == 't' && arg[1] == '_' && arg[2] && arg[3])
9454 	key = TERMCAP2KEY(arg[2], arg[3]);
9455     else
9456     {
9457 	--arg;			    /* put arg at the '<' */
9458 	modifiers = 0;
9459 	key = find_special_key(&arg, &modifiers, TRUE, TRUE);
9460 	if (modifiers)		    /* can't handle modifiers here */
9461 	    key = 0;
9462     }
9463     return key;
9464 }
9465 
9466 /*
9467  * if 'all' == 0: show changed options
9468  * if 'all' == 1: show all normal options
9469  * if 'all' == 2: show all terminal options
9470  */
9471     static void
9472 showoptions(all, opt_flags)
9473     int		all;
9474     int		opt_flags;	/* OPT_LOCAL and/or OPT_GLOBAL */
9475 {
9476     struct vimoption	*p;
9477     int			col;
9478     int			isterm;
9479     char_u		*varp;
9480     struct vimoption	**items;
9481     int			item_count;
9482     int			run;
9483     int			row, rows;
9484     int			cols;
9485     int			i;
9486     int			len;
9487 
9488 #define INC 20
9489 #define GAP 3
9490 
9491     items = (struct vimoption **)alloc((unsigned)(sizeof(struct vimoption *) *
9492 								PARAM_COUNT));
9493     if (items == NULL)
9494 	return;
9495 
9496     /* Highlight title */
9497     if (all == 2)
9498 	MSG_PUTS_TITLE(_("\n--- Terminal codes ---"));
9499     else if (opt_flags & OPT_GLOBAL)
9500 	MSG_PUTS_TITLE(_("\n--- Global option values ---"));
9501     else if (opt_flags & OPT_LOCAL)
9502 	MSG_PUTS_TITLE(_("\n--- Local option values ---"));
9503     else
9504 	MSG_PUTS_TITLE(_("\n--- Options ---"));
9505 
9506     /*
9507      * do the loop two times:
9508      * 1. display the short items
9509      * 2. display the long items (only strings and numbers)
9510      */
9511     for (run = 1; run <= 2 && !got_int; ++run)
9512     {
9513 	/*
9514 	 * collect the items in items[]
9515 	 */
9516 	item_count = 0;
9517 	for (p = &options[0]; p->fullname != NULL; p++)
9518 	{
9519 	    varp = NULL;
9520 	    isterm = istermoption(p);
9521 	    if (opt_flags != 0)
9522 	    {
9523 		if (p->indir != PV_NONE && !isterm)
9524 		    varp = get_varp_scope(p, opt_flags);
9525 	    }
9526 	    else
9527 		varp = get_varp(p);
9528 	    if (varp != NULL
9529 		    && ((all == 2 && isterm)
9530 			|| (all == 1 && !isterm)
9531 			|| (all == 0 && !optval_default(p, varp))))
9532 	    {
9533 		if (p->flags & P_BOOL)
9534 		    len = 1;		/* a toggle option fits always */
9535 		else
9536 		{
9537 		    option_value2string(p, opt_flags);
9538 		    len = (int)STRLEN(p->fullname) + vim_strsize(NameBuff) + 1;
9539 		}
9540 		if ((len <= INC - GAP && run == 1) ||
9541 						(len > INC - GAP && run == 2))
9542 		    items[item_count++] = p;
9543 	    }
9544 	}
9545 
9546 	/*
9547 	 * display the items
9548 	 */
9549 	if (run == 1)
9550 	{
9551 	    cols = (Columns + GAP - 3) / INC;
9552 	    if (cols == 0)
9553 		cols = 1;
9554 	    rows = (item_count + cols - 1) / cols;
9555 	}
9556 	else	/* run == 2 */
9557 	    rows = item_count;
9558 	for (row = 0; row < rows && !got_int; ++row)
9559 	{
9560 	    msg_putchar('\n');			/* go to next line */
9561 	    if (got_int)			/* 'q' typed in more */
9562 		break;
9563 	    col = 0;
9564 	    for (i = row; i < item_count; i += rows)
9565 	    {
9566 		msg_col = col;			/* make columns */
9567 		showoneopt(items[i], opt_flags);
9568 		col += INC;
9569 	    }
9570 	    out_flush();
9571 	    ui_breakcheck();
9572 	}
9573     }
9574     vim_free(items);
9575 }
9576 
9577 /*
9578  * Return TRUE if option "p" has its default value.
9579  */
9580     static int
9581 optval_default(p, varp)
9582     struct vimoption	*p;
9583     char_u		*varp;
9584 {
9585     int		dvi;
9586 
9587     if (varp == NULL)
9588 	return TRUE;	    /* hidden option is always at default */
9589     dvi = ((p->flags & P_VI_DEF) || p_cp) ? VI_DEFAULT : VIM_DEFAULT;
9590     if (p->flags & P_NUM)
9591 	return (*(long *)varp == (long)(long_i)p->def_val[dvi]);
9592     if (p->flags & P_BOOL)
9593 			/* the cast to long is required for Manx C, long_i is
9594 			 * needed for MSVC */
9595 	return (*(int *)varp == (int)(long)(long_i)p->def_val[dvi]);
9596     /* P_STRING */
9597     return (STRCMP(*(char_u **)varp, p->def_val[dvi]) == 0);
9598 }
9599 
9600 /*
9601  * showoneopt: show the value of one option
9602  * must not be called with a hidden option!
9603  */
9604     static void
9605 showoneopt(p, opt_flags)
9606     struct vimoption	*p;
9607     int			opt_flags;	/* OPT_LOCAL or OPT_GLOBAL */
9608 {
9609     char_u	*varp;
9610     int		save_silent = silent_mode;
9611 
9612     silent_mode = FALSE;
9613     info_message = TRUE;	/* use mch_msg(), not mch_errmsg() */
9614 
9615     varp = get_varp_scope(p, opt_flags);
9616 
9617     /* for 'modified' we also need to check if 'ff' or 'fenc' changed. */
9618     if ((p->flags & P_BOOL) && ((int *)varp == &curbuf->b_changed
9619 					? !curbufIsChanged() : !*(int *)varp))
9620 	MSG_PUTS("no");
9621     else if ((p->flags & P_BOOL) && *(int *)varp < 0)
9622 	MSG_PUTS("--");
9623     else
9624 	MSG_PUTS("  ");
9625     MSG_PUTS(p->fullname);
9626     if (!(p->flags & P_BOOL))
9627     {
9628 	msg_putchar('=');
9629 	/* put value string in NameBuff */
9630 	option_value2string(p, opt_flags);
9631 	msg_outtrans(NameBuff);
9632     }
9633 
9634     silent_mode = save_silent;
9635     info_message = FALSE;
9636 }
9637 
9638 /*
9639  * Write modified options as ":set" commands to a file.
9640  *
9641  * There are three values for "opt_flags":
9642  * OPT_GLOBAL:		   Write global option values and fresh values of
9643  *			   buffer-local options (used for start of a session
9644  *			   file).
9645  * OPT_GLOBAL + OPT_LOCAL: Idem, add fresh values of window-local options for
9646  *			   curwin (used for a vimrc file).
9647  * OPT_LOCAL:		   Write buffer-local option values for curbuf, fresh
9648  *			   and local values for window-local options of
9649  *			   curwin.  Local values are also written when at the
9650  *			   default value, because a modeline or autocommand
9651  *			   may have set them when doing ":edit file" and the
9652  *			   user has set them back at the default or fresh
9653  *			   value.
9654  *			   When "local_only" is TRUE, don't write fresh
9655  *			   values, only local values (for ":mkview").
9656  * (fresh value = value used for a new buffer or window for a local option).
9657  *
9658  * Return FAIL on error, OK otherwise.
9659  */
9660     int
9661 makeset(fd, opt_flags, local_only)
9662     FILE	*fd;
9663     int		opt_flags;
9664     int		local_only;
9665 {
9666     struct vimoption	*p;
9667     char_u		*varp;			/* currently used value */
9668     char_u		*varp_fresh;		/* local value */
9669     char_u		*varp_local = NULL;	/* fresh value */
9670     char		*cmd;
9671     int			round;
9672     int			pri;
9673 
9674     /*
9675      * The options that don't have a default (terminal name, columns, lines)
9676      * are never written.  Terminal options are also not written.
9677      * Do the loop over "options[]" twice: once for options with the
9678      * P_PRI_MKRC flag and once without.
9679      */
9680     for (pri = 1; pri >= 0; --pri)
9681     {
9682       for (p = &options[0]; !istermoption(p); p++)
9683 	if (!(p->flags & P_NO_MKRC)
9684 		&& !istermoption(p)
9685 		&& ((pri == 1) == ((p->flags & P_PRI_MKRC) != 0)))
9686 	{
9687 	    /* skip global option when only doing locals */
9688 	    if (p->indir == PV_NONE && !(opt_flags & OPT_GLOBAL))
9689 		continue;
9690 
9691 	    /* Do not store options like 'bufhidden' and 'syntax' in a vimrc
9692 	     * file, they are always buffer-specific. */
9693 	    if ((opt_flags & OPT_GLOBAL) && (p->flags & P_NOGLOB))
9694 		continue;
9695 
9696 	    /* Global values are only written when not at the default value. */
9697 	    varp = get_varp_scope(p, opt_flags);
9698 	    if ((opt_flags & OPT_GLOBAL) && optval_default(p, varp))
9699 		continue;
9700 
9701 	    round = 2;
9702 	    if (p->indir != PV_NONE)
9703 	    {
9704 		if (p->var == VAR_WIN)
9705 		{
9706 		    /* skip window-local option when only doing globals */
9707 		    if (!(opt_flags & OPT_LOCAL))
9708 			continue;
9709 		    /* When fresh value of window-local option is not at the
9710 		     * default, need to write it too. */
9711 		    if (!(opt_flags & OPT_GLOBAL) && !local_only)
9712 		    {
9713 			varp_fresh = get_varp_scope(p, OPT_GLOBAL);
9714 			if (!optval_default(p, varp_fresh))
9715 			{
9716 			    round = 1;
9717 			    varp_local = varp;
9718 			    varp = varp_fresh;
9719 			}
9720 		    }
9721 		}
9722 	    }
9723 
9724 	    /* Round 1: fresh value for window-local options.
9725 	     * Round 2: other values */
9726 	    for ( ; round <= 2; varp = varp_local, ++round)
9727 	    {
9728 		if (round == 1 || (opt_flags & OPT_GLOBAL))
9729 		    cmd = "set";
9730 		else
9731 		    cmd = "setlocal";
9732 
9733 		if (p->flags & P_BOOL)
9734 		{
9735 		    if (put_setbool(fd, cmd, p->fullname, *(int *)varp) == FAIL)
9736 			return FAIL;
9737 		}
9738 		else if (p->flags & P_NUM)
9739 		{
9740 		    if (put_setnum(fd, cmd, p->fullname, (long *)varp) == FAIL)
9741 			return FAIL;
9742 		}
9743 		else    /* P_STRING */
9744 		{
9745 #if defined(FEAT_SYN_HL) || defined(FEAT_AUTOCMD)
9746 		    int		do_endif = FALSE;
9747 
9748 		    /* Don't set 'syntax' and 'filetype' again if the value is
9749 		     * already right, avoids reloading the syntax file. */
9750 		    if (
9751 # if defined(FEAT_SYN_HL)
9752 			    p->indir == PV_SYN
9753 #  if defined(FEAT_AUTOCMD)
9754 			    ||
9755 #  endif
9756 # endif
9757 # if defined(FEAT_AUTOCMD)
9758 			    p->indir == PV_FT
9759 # endif
9760 			    )
9761 		    {
9762 			if (fprintf(fd, "if &%s != '%s'", p->fullname,
9763 						       *(char_u **)(varp)) < 0
9764 				|| put_eol(fd) < 0)
9765 			    return FAIL;
9766 			do_endif = TRUE;
9767 		    }
9768 #endif
9769 		    if (put_setstring(fd, cmd, p->fullname, (char_u **)varp,
9770 					  (p->flags & P_EXPAND) != 0) == FAIL)
9771 			return FAIL;
9772 #if defined(FEAT_SYN_HL) || defined(FEAT_AUTOCMD)
9773 		    if (do_endif)
9774 		    {
9775 			if (put_line(fd, "endif") == FAIL)
9776 			    return FAIL;
9777 		    }
9778 #endif
9779 		}
9780 	    }
9781 	}
9782     }
9783     return OK;
9784 }
9785 
9786 #if defined(FEAT_FOLDING) || defined(PROTO)
9787 /*
9788  * Generate set commands for the local fold options only.  Used when
9789  * 'sessionoptions' or 'viewoptions' contains "folds" but not "options".
9790  */
9791     int
9792 makefoldset(fd)
9793     FILE	*fd;
9794 {
9795     if (put_setstring(fd, "setlocal", "fdm", &curwin->w_p_fdm, FALSE) == FAIL
9796 # ifdef FEAT_EVAL
9797 	    || put_setstring(fd, "setlocal", "fde", &curwin->w_p_fde, FALSE)
9798 								       == FAIL
9799 # endif
9800 	    || put_setstring(fd, "setlocal", "fmr", &curwin->w_p_fmr, FALSE)
9801 								       == FAIL
9802 	    || put_setstring(fd, "setlocal", "fdi", &curwin->w_p_fdi, FALSE)
9803 								       == FAIL
9804 	    || put_setnum(fd, "setlocal", "fdl", &curwin->w_p_fdl) == FAIL
9805 	    || put_setnum(fd, "setlocal", "fml", &curwin->w_p_fml) == FAIL
9806 	    || put_setnum(fd, "setlocal", "fdn", &curwin->w_p_fdn) == FAIL
9807 	    || put_setbool(fd, "setlocal", "fen", curwin->w_p_fen) == FAIL
9808 	    )
9809 	return FAIL;
9810 
9811     return OK;
9812 }
9813 #endif
9814 
9815     static int
9816 put_setstring(fd, cmd, name, valuep, expand)
9817     FILE	*fd;
9818     char	*cmd;
9819     char	*name;
9820     char_u	**valuep;
9821     int		expand;
9822 {
9823     char_u	*s;
9824     char_u	*buf;
9825 
9826     if (fprintf(fd, "%s %s=", cmd, name) < 0)
9827 	return FAIL;
9828     if (*valuep != NULL)
9829     {
9830 	/* Output 'pastetoggle' as key names.  For other
9831 	 * options some characters have to be escaped with
9832 	 * CTRL-V or backslash */
9833 	if (valuep == &p_pt)
9834 	{
9835 	    s = *valuep;
9836 	    while (*s != NUL)
9837 		if (put_escstr(fd, str2special(&s, FALSE), 2) == FAIL)
9838 		    return FAIL;
9839 	}
9840 	else if (expand)
9841 	{
9842 	    buf = alloc(MAXPATHL);
9843 	    if (buf == NULL)
9844 		return FAIL;
9845 	    home_replace(NULL, *valuep, buf, MAXPATHL, FALSE);
9846 	    if (put_escstr(fd, buf, 2) == FAIL)
9847 	    {
9848 		vim_free(buf);
9849 		return FAIL;
9850 	    }
9851 	    vim_free(buf);
9852 	}
9853 	else if (put_escstr(fd, *valuep, 2) == FAIL)
9854 	    return FAIL;
9855     }
9856     if (put_eol(fd) < 0)
9857 	return FAIL;
9858     return OK;
9859 }
9860 
9861     static int
9862 put_setnum(fd, cmd, name, valuep)
9863     FILE	*fd;
9864     char	*cmd;
9865     char	*name;
9866     long	*valuep;
9867 {
9868     long	wc;
9869 
9870     if (fprintf(fd, "%s %s=", cmd, name) < 0)
9871 	return FAIL;
9872     if (wc_use_keyname((char_u *)valuep, &wc))
9873     {
9874 	/* print 'wildchar' and 'wildcharm' as a key name */
9875 	if (fputs((char *)get_special_key_name((int)wc, 0), fd) < 0)
9876 	    return FAIL;
9877     }
9878     else if (fprintf(fd, "%ld", *valuep) < 0)
9879 	return FAIL;
9880     if (put_eol(fd) < 0)
9881 	return FAIL;
9882     return OK;
9883 }
9884 
9885     static int
9886 put_setbool(fd, cmd, name, value)
9887     FILE	*fd;
9888     char	*cmd;
9889     char	*name;
9890     int		value;
9891 {
9892     if (value < 0)	/* global/local option using global value */
9893 	return OK;
9894     if (fprintf(fd, "%s %s%s", cmd, value ? "" : "no", name) < 0
9895 	    || put_eol(fd) < 0)
9896 	return FAIL;
9897     return OK;
9898 }
9899 
9900 /*
9901  * Clear all the terminal options.
9902  * If the option has been allocated, free the memory.
9903  * Terminal options are never hidden or indirect.
9904  */
9905     void
9906 clear_termoptions()
9907 {
9908     /*
9909      * Reset a few things before clearing the old options. This may cause
9910      * outputting a few things that the terminal doesn't understand, but the
9911      * screen will be cleared later, so this is OK.
9912      */
9913 #ifdef FEAT_MOUSE_TTY
9914     mch_setmouse(FALSE);	    /* switch mouse off */
9915 #endif
9916 #ifdef FEAT_TITLE
9917     mch_restore_title(3);	    /* restore window titles */
9918 #endif
9919 #if defined(FEAT_XCLIPBOARD) && defined(FEAT_GUI)
9920     /* When starting the GUI close the display opened for the clipboard.
9921      * After restoring the title, because that will need the display. */
9922     if (gui.starting)
9923 	clear_xterm_clip();
9924 #endif
9925 #ifdef WIN3264
9926     /*
9927      * Check if this is allowed now.
9928      */
9929     if (can_end_termcap_mode(FALSE) == TRUE)
9930 #endif
9931 	stoptermcap();			/* stop termcap mode */
9932 
9933     free_termoptions();
9934 }
9935 
9936     void
9937 free_termoptions()
9938 {
9939     struct vimoption   *p;
9940 
9941     for (p = &options[0]; p->fullname != NULL; p++)
9942 	if (istermoption(p))
9943 	{
9944 	    if (p->flags & P_ALLOCED)
9945 		free_string_option(*(char_u **)(p->var));
9946 	    if (p->flags & P_DEF_ALLOCED)
9947 		free_string_option(p->def_val[VI_DEFAULT]);
9948 	    *(char_u **)(p->var) = empty_option;
9949 	    p->def_val[VI_DEFAULT] = empty_option;
9950 	    p->flags &= ~(P_ALLOCED|P_DEF_ALLOCED);
9951 	}
9952     clear_termcodes();
9953 }
9954 
9955 /*
9956  * Free the string for one term option, if it was allocated.
9957  * Set the string to empty_option and clear allocated flag.
9958  * "var" points to the option value.
9959  */
9960     void
9961 free_one_termoption(var)
9962     char_u *var;
9963 {
9964     struct vimoption   *p;
9965 
9966     for (p = &options[0]; p->fullname != NULL; p++)
9967 	if (p->var == var)
9968 	{
9969 	    if (p->flags & P_ALLOCED)
9970 		free_string_option(*(char_u **)(p->var));
9971 	    *(char_u **)(p->var) = empty_option;
9972 	    p->flags &= ~P_ALLOCED;
9973 	    break;
9974 	}
9975 }
9976 
9977 /*
9978  * Set the terminal option defaults to the current value.
9979  * Used after setting the terminal name.
9980  */
9981     void
9982 set_term_defaults()
9983 {
9984     struct vimoption   *p;
9985 
9986     for (p = &options[0]; p->fullname != NULL; p++)
9987     {
9988 	if (istermoption(p) && p->def_val[VI_DEFAULT] != *(char_u **)(p->var))
9989 	{
9990 	    if (p->flags & P_DEF_ALLOCED)
9991 	    {
9992 		free_string_option(p->def_val[VI_DEFAULT]);
9993 		p->flags &= ~P_DEF_ALLOCED;
9994 	    }
9995 	    p->def_val[VI_DEFAULT] = *(char_u **)(p->var);
9996 	    if (p->flags & P_ALLOCED)
9997 	    {
9998 		p->flags |= P_DEF_ALLOCED;
9999 		p->flags &= ~P_ALLOCED;	 /* don't free the value now */
10000 	    }
10001 	}
10002     }
10003 }
10004 
10005 /*
10006  * return TRUE if 'p' starts with 't_'
10007  */
10008     static int
10009 istermoption(p)
10010     struct vimoption *p;
10011 {
10012     return (p->fullname[0] == 't' && p->fullname[1] == '_');
10013 }
10014 
10015 /*
10016  * Compute columns for ruler and shown command. 'sc_col' is also used to
10017  * decide what the maximum length of a message on the status line can be.
10018  * If there is a status line for the last window, 'sc_col' is independent
10019  * of 'ru_col'.
10020  */
10021 
10022 #define COL_RULER 17	    /* columns needed by standard ruler */
10023 
10024     void
10025 comp_col()
10026 {
10027 #if defined(FEAT_CMDL_INFO) && defined(FEAT_WINDOWS)
10028     int last_has_status = (p_ls == 2 || (p_ls == 1 && firstwin != lastwin));
10029 
10030     sc_col = 0;
10031     ru_col = 0;
10032     if (p_ru)
10033     {
10034 #ifdef FEAT_STL_OPT
10035 	ru_col = (ru_wid ? ru_wid : COL_RULER) + 1;
10036 #else
10037 	ru_col = COL_RULER + 1;
10038 #endif
10039 	/* no last status line, adjust sc_col */
10040 	if (!last_has_status)
10041 	    sc_col = ru_col;
10042     }
10043     if (p_sc)
10044     {
10045 	sc_col += SHOWCMD_COLS;
10046 	if (!p_ru || last_has_status)	    /* no need for separating space */
10047 	    ++sc_col;
10048     }
10049     sc_col = Columns - sc_col;
10050     ru_col = Columns - ru_col;
10051     if (sc_col <= 0)		/* screen too narrow, will become a mess */
10052 	sc_col = 1;
10053     if (ru_col <= 0)
10054 	ru_col = 1;
10055 #else
10056     sc_col = Columns;
10057     ru_col = Columns;
10058 #endif
10059 }
10060 
10061 /*
10062  * Unset local option value, similar to ":set opt<".
10063  */
10064     void
10065 unset_global_local_option(name, from)
10066     char_u	*name;
10067     void	*from;
10068 {
10069     struct vimoption *p;
10070     int		opt_idx;
10071     buf_T	*buf = (buf_T *)from;
10072 
10073     opt_idx = findoption(name);
10074     if (opt_idx < 0)
10075 	return;
10076     p = &(options[opt_idx]);
10077 
10078     switch ((int)p->indir)
10079     {
10080 	/* global option with local value: use local value if it's been set */
10081 	case PV_EP:
10082 	    clear_string_option(&buf->b_p_ep);
10083 	    break;
10084 	case PV_KP:
10085 	    clear_string_option(&buf->b_p_kp);
10086 	    break;
10087 	case PV_PATH:
10088 	    clear_string_option(&buf->b_p_path);
10089 	    break;
10090 	case PV_AR:
10091 	    buf->b_p_ar = -1;
10092 	    break;
10093 	case PV_BKC:
10094 	    clear_string_option(&buf->b_p_bkc);
10095 	    buf->b_bkc_flags = 0;
10096 	    break;
10097 	case PV_TAGS:
10098 	    clear_string_option(&buf->b_p_tags);
10099 	    break;
10100 	case PV_TC:
10101 	    clear_string_option(&buf->b_p_tc);
10102 	    buf->b_tc_flags = 0;
10103 	    break;
10104 #ifdef FEAT_FIND_ID
10105 	case PV_DEF:
10106 	    clear_string_option(&buf->b_p_def);
10107 	    break;
10108 	case PV_INC:
10109 	    clear_string_option(&buf->b_p_inc);
10110 	    break;
10111 #endif
10112 #ifdef FEAT_INS_EXPAND
10113 	case PV_DICT:
10114 	    clear_string_option(&buf->b_p_dict);
10115 	    break;
10116 	case PV_TSR:
10117 	    clear_string_option(&buf->b_p_tsr);
10118 	    break;
10119 #endif
10120 #ifdef FEAT_QUICKFIX
10121 	case PV_EFM:
10122 	    clear_string_option(&buf->b_p_efm);
10123 	    break;
10124 	case PV_GP:
10125 	    clear_string_option(&buf->b_p_gp);
10126 	    break;
10127 	case PV_MP:
10128 	    clear_string_option(&buf->b_p_mp);
10129 	    break;
10130 #endif
10131 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
10132 	case PV_BEXPR:
10133 	    clear_string_option(&buf->b_p_bexpr);
10134 	    break;
10135 #endif
10136 #if defined(FEAT_CRYPT)
10137 	case PV_CM:
10138 	    clear_string_option(&buf->b_p_cm);
10139 	    break;
10140 #endif
10141 #ifdef FEAT_STL_OPT
10142 	case PV_STL:
10143 	    clear_string_option(&((win_T *)from)->w_p_stl);
10144 	    break;
10145 #endif
10146 	case PV_UL:
10147 	    buf->b_p_ul = NO_LOCAL_UNDOLEVEL;
10148 	    break;
10149 #ifdef FEAT_LISP
10150 	case PV_LW:
10151 	    clear_string_option(&buf->b_p_lw);
10152 	    break;
10153 #endif
10154     }
10155 }
10156 
10157 /*
10158  * Get pointer to option variable, depending on local or global scope.
10159  */
10160     static char_u *
10161 get_varp_scope(p, opt_flags)
10162     struct vimoption	*p;
10163     int			opt_flags;
10164 {
10165     if ((opt_flags & OPT_GLOBAL) && p->indir != PV_NONE)
10166     {
10167 	if (p->var == VAR_WIN)
10168 	    return (char_u *)GLOBAL_WO(get_varp(p));
10169 	return p->var;
10170     }
10171     if ((opt_flags & OPT_LOCAL) && ((int)p->indir & PV_BOTH))
10172     {
10173 	switch ((int)p->indir)
10174 	{
10175 #ifdef FEAT_QUICKFIX
10176 	    case PV_EFM:  return (char_u *)&(curbuf->b_p_efm);
10177 	    case PV_GP:   return (char_u *)&(curbuf->b_p_gp);
10178 	    case PV_MP:   return (char_u *)&(curbuf->b_p_mp);
10179 #endif
10180 	    case PV_EP:   return (char_u *)&(curbuf->b_p_ep);
10181 	    case PV_KP:   return (char_u *)&(curbuf->b_p_kp);
10182 	    case PV_PATH: return (char_u *)&(curbuf->b_p_path);
10183 	    case PV_AR:   return (char_u *)&(curbuf->b_p_ar);
10184 	    case PV_TAGS: return (char_u *)&(curbuf->b_p_tags);
10185 	    case PV_TC:   return (char_u *)&(curbuf->b_p_tc);
10186 #ifdef FEAT_FIND_ID
10187 	    case PV_DEF:  return (char_u *)&(curbuf->b_p_def);
10188 	    case PV_INC:  return (char_u *)&(curbuf->b_p_inc);
10189 #endif
10190 #ifdef FEAT_INS_EXPAND
10191 	    case PV_DICT: return (char_u *)&(curbuf->b_p_dict);
10192 	    case PV_TSR:  return (char_u *)&(curbuf->b_p_tsr);
10193 #endif
10194 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
10195 	    case PV_BEXPR: return (char_u *)&(curbuf->b_p_bexpr);
10196 #endif
10197 #if defined(FEAT_CRYPT)
10198 	    case PV_CM:	  return (char_u *)&(curbuf->b_p_cm);
10199 #endif
10200 #ifdef FEAT_STL_OPT
10201 	    case PV_STL:  return (char_u *)&(curwin->w_p_stl);
10202 #endif
10203 	    case PV_UL:   return (char_u *)&(curbuf->b_p_ul);
10204 #ifdef FEAT_LISP
10205 	    case PV_LW:   return (char_u *)&(curbuf->b_p_lw);
10206 #endif
10207 	    case PV_BKC:  return (char_u *)&(curbuf->b_p_bkc);
10208 	}
10209 	return NULL; /* "cannot happen" */
10210     }
10211     return get_varp(p);
10212 }
10213 
10214 /*
10215  * Get pointer to option variable.
10216  */
10217     static char_u *
10218 get_varp(p)
10219     struct vimoption	*p;
10220 {
10221     /* hidden option, always return NULL */
10222     if (p->var == NULL)
10223 	return NULL;
10224 
10225     switch ((int)p->indir)
10226     {
10227 	case PV_NONE:	return p->var;
10228 
10229 	/* global option with local value: use local value if it's been set */
10230 	case PV_EP:	return *curbuf->b_p_ep != NUL
10231 				    ? (char_u *)&curbuf->b_p_ep : p->var;
10232 	case PV_KP:	return *curbuf->b_p_kp != NUL
10233 				    ? (char_u *)&curbuf->b_p_kp : p->var;
10234 	case PV_PATH:	return *curbuf->b_p_path != NUL
10235 				    ? (char_u *)&(curbuf->b_p_path) : p->var;
10236 	case PV_AR:	return curbuf->b_p_ar >= 0
10237 				    ? (char_u *)&(curbuf->b_p_ar) : p->var;
10238 	case PV_TAGS:	return *curbuf->b_p_tags != NUL
10239 				    ? (char_u *)&(curbuf->b_p_tags) : p->var;
10240 	case PV_TC:	return *curbuf->b_p_tc != NUL
10241 				    ? (char_u *)&(curbuf->b_p_tc) : p->var;
10242 	case PV_BKC:	return *curbuf->b_p_bkc != NUL
10243 				    ? (char_u *)&(curbuf->b_p_bkc) : p->var;
10244 #ifdef FEAT_FIND_ID
10245 	case PV_DEF:	return *curbuf->b_p_def != NUL
10246 				    ? (char_u *)&(curbuf->b_p_def) : p->var;
10247 	case PV_INC:	return *curbuf->b_p_inc != NUL
10248 				    ? (char_u *)&(curbuf->b_p_inc) : p->var;
10249 #endif
10250 #ifdef FEAT_INS_EXPAND
10251 	case PV_DICT:	return *curbuf->b_p_dict != NUL
10252 				    ? (char_u *)&(curbuf->b_p_dict) : p->var;
10253 	case PV_TSR:	return *curbuf->b_p_tsr != NUL
10254 				    ? (char_u *)&(curbuf->b_p_tsr) : p->var;
10255 #endif
10256 #ifdef FEAT_QUICKFIX
10257 	case PV_EFM:	return *curbuf->b_p_efm != NUL
10258 				    ? (char_u *)&(curbuf->b_p_efm) : p->var;
10259 	case PV_GP:	return *curbuf->b_p_gp != NUL
10260 				    ? (char_u *)&(curbuf->b_p_gp) : p->var;
10261 	case PV_MP:	return *curbuf->b_p_mp != NUL
10262 				    ? (char_u *)&(curbuf->b_p_mp) : p->var;
10263 #endif
10264 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
10265 	case PV_BEXPR:	return *curbuf->b_p_bexpr != NUL
10266 				    ? (char_u *)&(curbuf->b_p_bexpr) : p->var;
10267 #endif
10268 #if defined(FEAT_CRYPT)
10269 	case PV_CM:	return *curbuf->b_p_cm != NUL
10270 				    ? (char_u *)&(curbuf->b_p_cm) : p->var;
10271 #endif
10272 #ifdef FEAT_STL_OPT
10273 	case PV_STL:	return *curwin->w_p_stl != NUL
10274 				    ? (char_u *)&(curwin->w_p_stl) : p->var;
10275 #endif
10276 	case PV_UL:	return curbuf->b_p_ul != NO_LOCAL_UNDOLEVEL
10277 				    ? (char_u *)&(curbuf->b_p_ul) : p->var;
10278 #ifdef FEAT_LISP
10279 	case PV_LW:	return *curbuf->b_p_lw != NUL
10280 				    ? (char_u *)&(curbuf->b_p_lw) : p->var;
10281 #endif
10282 
10283 #ifdef FEAT_ARABIC
10284 	case PV_ARAB:	return (char_u *)&(curwin->w_p_arab);
10285 #endif
10286 	case PV_LIST:	return (char_u *)&(curwin->w_p_list);
10287 #ifdef FEAT_SPELL
10288 	case PV_SPELL:	return (char_u *)&(curwin->w_p_spell);
10289 #endif
10290 #ifdef FEAT_SYN_HL
10291 	case PV_CUC:	return (char_u *)&(curwin->w_p_cuc);
10292 	case PV_CUL:	return (char_u *)&(curwin->w_p_cul);
10293 	case PV_CC:	return (char_u *)&(curwin->w_p_cc);
10294 #endif
10295 #ifdef FEAT_DIFF
10296 	case PV_DIFF:	return (char_u *)&(curwin->w_p_diff);
10297 #endif
10298 #ifdef FEAT_FOLDING
10299 	case PV_FDC:	return (char_u *)&(curwin->w_p_fdc);
10300 	case PV_FEN:	return (char_u *)&(curwin->w_p_fen);
10301 	case PV_FDI:	return (char_u *)&(curwin->w_p_fdi);
10302 	case PV_FDL:	return (char_u *)&(curwin->w_p_fdl);
10303 	case PV_FDM:	return (char_u *)&(curwin->w_p_fdm);
10304 	case PV_FML:	return (char_u *)&(curwin->w_p_fml);
10305 	case PV_FDN:	return (char_u *)&(curwin->w_p_fdn);
10306 # ifdef FEAT_EVAL
10307 	case PV_FDE:	return (char_u *)&(curwin->w_p_fde);
10308 	case PV_FDT:	return (char_u *)&(curwin->w_p_fdt);
10309 # endif
10310 	case PV_FMR:	return (char_u *)&(curwin->w_p_fmr);
10311 #endif
10312 	case PV_NU:	return (char_u *)&(curwin->w_p_nu);
10313 	case PV_RNU:	return (char_u *)&(curwin->w_p_rnu);
10314 #ifdef FEAT_LINEBREAK
10315 	case PV_NUW:	return (char_u *)&(curwin->w_p_nuw);
10316 #endif
10317 #ifdef FEAT_WINDOWS
10318 	case PV_WFH:	return (char_u *)&(curwin->w_p_wfh);
10319 #endif
10320 #ifdef FEAT_VERTSPLIT
10321 	case PV_WFW:	return (char_u *)&(curwin->w_p_wfw);
10322 #endif
10323 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
10324 	case PV_PVW:	return (char_u *)&(curwin->w_p_pvw);
10325 #endif
10326 #ifdef FEAT_RIGHTLEFT
10327 	case PV_RL:	return (char_u *)&(curwin->w_p_rl);
10328 	case PV_RLC:	return (char_u *)&(curwin->w_p_rlc);
10329 #endif
10330 	case PV_SCROLL:	return (char_u *)&(curwin->w_p_scr);
10331 	case PV_WRAP:	return (char_u *)&(curwin->w_p_wrap);
10332 #ifdef FEAT_LINEBREAK
10333 	case PV_LBR:	return (char_u *)&(curwin->w_p_lbr);
10334 	case PV_BRI:	return (char_u *)&(curwin->w_p_bri);
10335 	case PV_BRIOPT: return (char_u *)&(curwin->w_p_briopt);
10336 #endif
10337 #ifdef FEAT_SCROLLBIND
10338 	case PV_SCBIND: return (char_u *)&(curwin->w_p_scb);
10339 #endif
10340 #ifdef FEAT_CURSORBIND
10341 	case PV_CRBIND: return (char_u *)&(curwin->w_p_crb);
10342 #endif
10343 #ifdef FEAT_CONCEAL
10344 	case PV_COCU:    return (char_u *)&(curwin->w_p_cocu);
10345 	case PV_COLE:    return (char_u *)&(curwin->w_p_cole);
10346 #endif
10347 
10348 	case PV_AI:	return (char_u *)&(curbuf->b_p_ai);
10349 	case PV_BIN:	return (char_u *)&(curbuf->b_p_bin);
10350 #ifdef FEAT_MBYTE
10351 	case PV_BOMB:	return (char_u *)&(curbuf->b_p_bomb);
10352 #endif
10353 #if defined(FEAT_QUICKFIX)
10354 	case PV_BH:	return (char_u *)&(curbuf->b_p_bh);
10355 	case PV_BT:	return (char_u *)&(curbuf->b_p_bt);
10356 #endif
10357 	case PV_BL:	return (char_u *)&(curbuf->b_p_bl);
10358 	case PV_CI:	return (char_u *)&(curbuf->b_p_ci);
10359 #ifdef FEAT_CINDENT
10360 	case PV_CIN:	return (char_u *)&(curbuf->b_p_cin);
10361 	case PV_CINK:	return (char_u *)&(curbuf->b_p_cink);
10362 	case PV_CINO:	return (char_u *)&(curbuf->b_p_cino);
10363 #endif
10364 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
10365 	case PV_CINW:	return (char_u *)&(curbuf->b_p_cinw);
10366 #endif
10367 #ifdef FEAT_COMMENTS
10368 	case PV_COM:	return (char_u *)&(curbuf->b_p_com);
10369 #endif
10370 #ifdef FEAT_FOLDING
10371 	case PV_CMS:	return (char_u *)&(curbuf->b_p_cms);
10372 #endif
10373 #ifdef FEAT_INS_EXPAND
10374 	case PV_CPT:	return (char_u *)&(curbuf->b_p_cpt);
10375 #endif
10376 #ifdef FEAT_COMPL_FUNC
10377 	case PV_CFU:	return (char_u *)&(curbuf->b_p_cfu);
10378 	case PV_OFU:	return (char_u *)&(curbuf->b_p_ofu);
10379 #endif
10380 	case PV_EOL:	return (char_u *)&(curbuf->b_p_eol);
10381 	case PV_FIXEOL:	return (char_u *)&(curbuf->b_p_fixeol);
10382 	case PV_ET:	return (char_u *)&(curbuf->b_p_et);
10383 #ifdef FEAT_MBYTE
10384 	case PV_FENC:	return (char_u *)&(curbuf->b_p_fenc);
10385 #endif
10386 	case PV_FF:	return (char_u *)&(curbuf->b_p_ff);
10387 #ifdef FEAT_AUTOCMD
10388 	case PV_FT:	return (char_u *)&(curbuf->b_p_ft);
10389 #endif
10390 	case PV_FO:	return (char_u *)&(curbuf->b_p_fo);
10391 	case PV_FLP:	return (char_u *)&(curbuf->b_p_flp);
10392 	case PV_IMI:	return (char_u *)&(curbuf->b_p_iminsert);
10393 	case PV_IMS:	return (char_u *)&(curbuf->b_p_imsearch);
10394 	case PV_INF:	return (char_u *)&(curbuf->b_p_inf);
10395 	case PV_ISK:	return (char_u *)&(curbuf->b_p_isk);
10396 #ifdef FEAT_FIND_ID
10397 # ifdef FEAT_EVAL
10398 	case PV_INEX:	return (char_u *)&(curbuf->b_p_inex);
10399 # endif
10400 #endif
10401 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
10402 	case PV_INDE:	return (char_u *)&(curbuf->b_p_inde);
10403 	case PV_INDK:	return (char_u *)&(curbuf->b_p_indk);
10404 #endif
10405 #ifdef FEAT_EVAL
10406 	case PV_FEX:	return (char_u *)&(curbuf->b_p_fex);
10407 #endif
10408 #ifdef FEAT_CRYPT
10409 	case PV_KEY:	return (char_u *)&(curbuf->b_p_key);
10410 #endif
10411 #ifdef FEAT_LISP
10412 	case PV_LISP:	return (char_u *)&(curbuf->b_p_lisp);
10413 #endif
10414 	case PV_ML:	return (char_u *)&(curbuf->b_p_ml);
10415 	case PV_MPS:	return (char_u *)&(curbuf->b_p_mps);
10416 	case PV_MA:	return (char_u *)&(curbuf->b_p_ma);
10417 	case PV_MOD:	return (char_u *)&(curbuf->b_changed);
10418 	case PV_NF:	return (char_u *)&(curbuf->b_p_nf);
10419 	case PV_PI:	return (char_u *)&(curbuf->b_p_pi);
10420 #ifdef FEAT_TEXTOBJ
10421 	case PV_QE:	return (char_u *)&(curbuf->b_p_qe);
10422 #endif
10423 	case PV_RO:	return (char_u *)&(curbuf->b_p_ro);
10424 #ifdef FEAT_SMARTINDENT
10425 	case PV_SI:	return (char_u *)&(curbuf->b_p_si);
10426 #endif
10427 #ifndef SHORT_FNAME
10428 	case PV_SN:	return (char_u *)&(curbuf->b_p_sn);
10429 #endif
10430 	case PV_STS:	return (char_u *)&(curbuf->b_p_sts);
10431 #ifdef FEAT_SEARCHPATH
10432 	case PV_SUA:	return (char_u *)&(curbuf->b_p_sua);
10433 #endif
10434 	case PV_SWF:	return (char_u *)&(curbuf->b_p_swf);
10435 #ifdef FEAT_SYN_HL
10436 	case PV_SMC:	return (char_u *)&(curbuf->b_p_smc);
10437 	case PV_SYN:	return (char_u *)&(curbuf->b_p_syn);
10438 #endif
10439 #ifdef FEAT_SPELL
10440 	case PV_SPC:	return (char_u *)&(curwin->w_s->b_p_spc);
10441 	case PV_SPF:	return (char_u *)&(curwin->w_s->b_p_spf);
10442 	case PV_SPL:	return (char_u *)&(curwin->w_s->b_p_spl);
10443 #endif
10444 	case PV_SW:	return (char_u *)&(curbuf->b_p_sw);
10445 	case PV_TS:	return (char_u *)&(curbuf->b_p_ts);
10446 	case PV_TW:	return (char_u *)&(curbuf->b_p_tw);
10447 	case PV_TX:	return (char_u *)&(curbuf->b_p_tx);
10448 #ifdef FEAT_PERSISTENT_UNDO
10449 	case PV_UDF:	return (char_u *)&(curbuf->b_p_udf);
10450 #endif
10451 	case PV_WM:	return (char_u *)&(curbuf->b_p_wm);
10452 #ifdef FEAT_KEYMAP
10453 	case PV_KMAP:	return (char_u *)&(curbuf->b_p_keymap);
10454 #endif
10455 	default:	EMSG(_("E356: get_varp ERROR"));
10456     }
10457     /* always return a valid pointer to avoid a crash! */
10458     return (char_u *)&(curbuf->b_p_wm);
10459 }
10460 
10461 /*
10462  * Get the value of 'equalprg', either the buffer-local one or the global one.
10463  */
10464     char_u *
10465 get_equalprg()
10466 {
10467     if (*curbuf->b_p_ep == NUL)
10468 	return p_ep;
10469     return curbuf->b_p_ep;
10470 }
10471 
10472 #if defined(FEAT_WINDOWS) || defined(PROTO)
10473 /*
10474  * Copy options from one window to another.
10475  * Used when splitting a window.
10476  */
10477     void
10478 win_copy_options(wp_from, wp_to)
10479     win_T	*wp_from;
10480     win_T	*wp_to;
10481 {
10482     copy_winopt(&wp_from->w_onebuf_opt, &wp_to->w_onebuf_opt);
10483     copy_winopt(&wp_from->w_allbuf_opt, &wp_to->w_allbuf_opt);
10484 # ifdef FEAT_RIGHTLEFT
10485 #  ifdef FEAT_FKMAP
10486     /* Is this right? */
10487     wp_to->w_farsi = wp_from->w_farsi;
10488 #  endif
10489 # endif
10490 #if defined(FEAT_LINEBREAK)
10491     briopt_check(wp_to);
10492 #endif
10493 }
10494 #endif
10495 
10496 /*
10497  * Copy the options from one winopt_T to another.
10498  * Doesn't free the old option values in "to", use clear_winopt() for that.
10499  * The 'scroll' option is not copied, because it depends on the window height.
10500  * The 'previewwindow' option is reset, there can be only one preview window.
10501  */
10502     void
10503 copy_winopt(from, to)
10504     winopt_T	*from;
10505     winopt_T	*to;
10506 {
10507 #ifdef FEAT_ARABIC
10508     to->wo_arab = from->wo_arab;
10509 #endif
10510     to->wo_list = from->wo_list;
10511     to->wo_nu = from->wo_nu;
10512     to->wo_rnu = from->wo_rnu;
10513 #ifdef FEAT_LINEBREAK
10514     to->wo_nuw = from->wo_nuw;
10515 #endif
10516 #ifdef FEAT_RIGHTLEFT
10517     to->wo_rl  = from->wo_rl;
10518     to->wo_rlc = vim_strsave(from->wo_rlc);
10519 #endif
10520 #ifdef FEAT_STL_OPT
10521     to->wo_stl = vim_strsave(from->wo_stl);
10522 #endif
10523     to->wo_wrap = from->wo_wrap;
10524 #ifdef FEAT_DIFF
10525     to->wo_wrap_save = from->wo_wrap_save;
10526 #endif
10527 #ifdef FEAT_LINEBREAK
10528     to->wo_lbr = from->wo_lbr;
10529     to->wo_bri = from->wo_bri;
10530     to->wo_briopt = vim_strsave(from->wo_briopt);
10531 #endif
10532 #ifdef FEAT_SCROLLBIND
10533     to->wo_scb = from->wo_scb;
10534     to->wo_scb_save = from->wo_scb_save;
10535 #endif
10536 #ifdef FEAT_CURSORBIND
10537     to->wo_crb = from->wo_crb;
10538     to->wo_crb_save = from->wo_crb_save;
10539 #endif
10540 #ifdef FEAT_SPELL
10541     to->wo_spell = from->wo_spell;
10542 #endif
10543 #ifdef FEAT_SYN_HL
10544     to->wo_cuc = from->wo_cuc;
10545     to->wo_cul = from->wo_cul;
10546     to->wo_cc = vim_strsave(from->wo_cc);
10547 #endif
10548 #ifdef FEAT_DIFF
10549     to->wo_diff = from->wo_diff;
10550     to->wo_diff_saved = from->wo_diff_saved;
10551 #endif
10552 #ifdef FEAT_CONCEAL
10553     to->wo_cocu = vim_strsave(from->wo_cocu);
10554     to->wo_cole = from->wo_cole;
10555 #endif
10556 #ifdef FEAT_FOLDING
10557     to->wo_fdc = from->wo_fdc;
10558     to->wo_fdc_save = from->wo_fdc_save;
10559     to->wo_fen = from->wo_fen;
10560     to->wo_fen_save = from->wo_fen_save;
10561     to->wo_fdi = vim_strsave(from->wo_fdi);
10562     to->wo_fml = from->wo_fml;
10563     to->wo_fdl = from->wo_fdl;
10564     to->wo_fdl_save = from->wo_fdl_save;
10565     to->wo_fdm = vim_strsave(from->wo_fdm);
10566     to->wo_fdm_save = from->wo_diff_saved
10567 			      ? vim_strsave(from->wo_fdm_save) : empty_option;
10568     to->wo_fdn = from->wo_fdn;
10569 # ifdef FEAT_EVAL
10570     to->wo_fde = vim_strsave(from->wo_fde);
10571     to->wo_fdt = vim_strsave(from->wo_fdt);
10572 # endif
10573     to->wo_fmr = vim_strsave(from->wo_fmr);
10574 #endif
10575     check_winopt(to);		/* don't want NULL pointers */
10576 }
10577 
10578 /*
10579  * Check string options in a window for a NULL value.
10580  */
10581     void
10582 check_win_options(win)
10583     win_T	*win;
10584 {
10585     check_winopt(&win->w_onebuf_opt);
10586     check_winopt(&win->w_allbuf_opt);
10587 }
10588 
10589 /*
10590  * Check for NULL pointers in a winopt_T and replace them with empty_option.
10591  */
10592     static void
10593 check_winopt(wop)
10594     winopt_T	*wop UNUSED;
10595 {
10596 #ifdef FEAT_FOLDING
10597     check_string_option(&wop->wo_fdi);
10598     check_string_option(&wop->wo_fdm);
10599     check_string_option(&wop->wo_fdm_save);
10600 # ifdef FEAT_EVAL
10601     check_string_option(&wop->wo_fde);
10602     check_string_option(&wop->wo_fdt);
10603 # endif
10604     check_string_option(&wop->wo_fmr);
10605 #endif
10606 #ifdef FEAT_RIGHTLEFT
10607     check_string_option(&wop->wo_rlc);
10608 #endif
10609 #ifdef FEAT_STL_OPT
10610     check_string_option(&wop->wo_stl);
10611 #endif
10612 #ifdef FEAT_SYN_HL
10613     check_string_option(&wop->wo_cc);
10614 #endif
10615 #ifdef FEAT_CONCEAL
10616     check_string_option(&wop->wo_cocu);
10617 #endif
10618 #ifdef FEAT_LINEBREAK
10619     check_string_option(&wop->wo_briopt);
10620 #endif
10621 }
10622 
10623 /*
10624  * Free the allocated memory inside a winopt_T.
10625  */
10626     void
10627 clear_winopt(wop)
10628     winopt_T	*wop UNUSED;
10629 {
10630 #ifdef FEAT_FOLDING
10631     clear_string_option(&wop->wo_fdi);
10632     clear_string_option(&wop->wo_fdm);
10633     clear_string_option(&wop->wo_fdm_save);
10634 # ifdef FEAT_EVAL
10635     clear_string_option(&wop->wo_fde);
10636     clear_string_option(&wop->wo_fdt);
10637 # endif
10638     clear_string_option(&wop->wo_fmr);
10639 #endif
10640 #ifdef FEAT_LINEBREAK
10641     clear_string_option(&wop->wo_briopt);
10642 #endif
10643 #ifdef FEAT_RIGHTLEFT
10644     clear_string_option(&wop->wo_rlc);
10645 #endif
10646 #ifdef FEAT_STL_OPT
10647     clear_string_option(&wop->wo_stl);
10648 #endif
10649 #ifdef FEAT_SYN_HL
10650     clear_string_option(&wop->wo_cc);
10651 #endif
10652 #ifdef FEAT_CONCEAL
10653     clear_string_option(&wop->wo_cocu);
10654 #endif
10655 }
10656 
10657 /*
10658  * Copy global option values to local options for one buffer.
10659  * Used when creating a new buffer and sometimes when entering a buffer.
10660  * flags:
10661  * BCO_ENTER	We will enter the buf buffer.
10662  * BCO_ALWAYS	Always copy the options, but only set b_p_initialized when
10663  *		appropriate.
10664  * BCO_NOHELP	Don't copy the values to a help buffer.
10665  */
10666     void
10667 buf_copy_options(buf, flags)
10668     buf_T	*buf;
10669     int		flags;
10670 {
10671     int		should_copy = TRUE;
10672     char_u	*save_p_isk = NULL;	    /* init for GCC */
10673     int		dont_do_help;
10674     int		did_isk = FALSE;
10675 
10676     /*
10677      * Don't do anything if the buffer is invalid.
10678      */
10679     if (buf == NULL || !buf_valid(buf))
10680 	return;
10681 
10682     /*
10683      * Skip this when the option defaults have not been set yet.  Happens when
10684      * main() allocates the first buffer.
10685      */
10686     if (p_cpo != NULL)
10687     {
10688 	/*
10689 	 * Always copy when entering and 'cpo' contains 'S'.
10690 	 * Don't copy when already initialized.
10691 	 * Don't copy when 'cpo' contains 's' and not entering.
10692 	 * 'S'	BCO_ENTER  initialized	's'  should_copy
10693 	 * yes	  yes	       X	 X	TRUE
10694 	 * yes	  no	      yes	 X	FALSE
10695 	 * no	   X	      yes	 X	FALSE
10696 	 *  X	  no	      no	yes	FALSE
10697 	 *  X	  no	      no	no	TRUE
10698 	 * no	  yes	      no	 X	TRUE
10699 	 */
10700 	if ((vim_strchr(p_cpo, CPO_BUFOPTGLOB) == NULL || !(flags & BCO_ENTER))
10701 		&& (buf->b_p_initialized
10702 		    || (!(flags & BCO_ENTER)
10703 			&& vim_strchr(p_cpo, CPO_BUFOPT) != NULL)))
10704 	    should_copy = FALSE;
10705 
10706 	if (should_copy || (flags & BCO_ALWAYS))
10707 	{
10708 	    /* Don't copy the options specific to a help buffer when
10709 	     * BCO_NOHELP is given or the options were initialized already
10710 	     * (jumping back to a help file with CTRL-T or CTRL-O) */
10711 	    dont_do_help = ((flags & BCO_NOHELP) && buf->b_help)
10712 						       || buf->b_p_initialized;
10713 	    if (dont_do_help)		/* don't free b_p_isk */
10714 	    {
10715 		save_p_isk = buf->b_p_isk;
10716 		buf->b_p_isk = NULL;
10717 	    }
10718 	    /*
10719 	     * Always free the allocated strings.
10720 	     * If not already initialized, set 'readonly' and copy 'fileformat'.
10721 	     */
10722 	    if (!buf->b_p_initialized)
10723 	    {
10724 		free_buf_options(buf, TRUE);
10725 		buf->b_p_ro = FALSE;		/* don't copy readonly */
10726 		buf->b_p_tx = p_tx;
10727 #ifdef FEAT_MBYTE
10728 		buf->b_p_fenc = vim_strsave(p_fenc);
10729 #endif
10730 		buf->b_p_ff = vim_strsave(p_ff);
10731 #if defined(FEAT_QUICKFIX)
10732 		buf->b_p_bh = empty_option;
10733 		buf->b_p_bt = empty_option;
10734 #endif
10735 	    }
10736 	    else
10737 		free_buf_options(buf, FALSE);
10738 
10739 	    buf->b_p_ai = p_ai;
10740 	    buf->b_p_ai_nopaste = p_ai_nopaste;
10741 	    buf->b_p_sw = p_sw;
10742 	    buf->b_p_tw = p_tw;
10743 	    buf->b_p_tw_nopaste = p_tw_nopaste;
10744 	    buf->b_p_tw_nobin = p_tw_nobin;
10745 	    buf->b_p_wm = p_wm;
10746 	    buf->b_p_wm_nopaste = p_wm_nopaste;
10747 	    buf->b_p_wm_nobin = p_wm_nobin;
10748 	    buf->b_p_bin = p_bin;
10749 #ifdef FEAT_MBYTE
10750 	    buf->b_p_bomb = p_bomb;
10751 #endif
10752 	    buf->b_p_fixeol = p_fixeol;
10753 	    buf->b_p_et = p_et;
10754 	    buf->b_p_et_nobin = p_et_nobin;
10755 	    buf->b_p_et_nopaste = p_et_nopaste;
10756 	    buf->b_p_ml = p_ml;
10757 	    buf->b_p_ml_nobin = p_ml_nobin;
10758 	    buf->b_p_inf = p_inf;
10759 	    buf->b_p_swf = p_swf;
10760 #ifdef FEAT_INS_EXPAND
10761 	    buf->b_p_cpt = vim_strsave(p_cpt);
10762 #endif
10763 #ifdef FEAT_COMPL_FUNC
10764 	    buf->b_p_cfu = vim_strsave(p_cfu);
10765 	    buf->b_p_ofu = vim_strsave(p_ofu);
10766 #endif
10767 	    buf->b_p_sts = p_sts;
10768 	    buf->b_p_sts_nopaste = p_sts_nopaste;
10769 #ifndef SHORT_FNAME
10770 	    buf->b_p_sn = p_sn;
10771 #endif
10772 #ifdef FEAT_COMMENTS
10773 	    buf->b_p_com = vim_strsave(p_com);
10774 #endif
10775 #ifdef FEAT_FOLDING
10776 	    buf->b_p_cms = vim_strsave(p_cms);
10777 #endif
10778 	    buf->b_p_fo = vim_strsave(p_fo);
10779 	    buf->b_p_flp = vim_strsave(p_flp);
10780 	    buf->b_p_nf = vim_strsave(p_nf);
10781 	    buf->b_p_mps = vim_strsave(p_mps);
10782 #ifdef FEAT_SMARTINDENT
10783 	    buf->b_p_si = p_si;
10784 #endif
10785 	    buf->b_p_ci = p_ci;
10786 #ifdef FEAT_CINDENT
10787 	    buf->b_p_cin = p_cin;
10788 	    buf->b_p_cink = vim_strsave(p_cink);
10789 	    buf->b_p_cino = vim_strsave(p_cino);
10790 #endif
10791 #ifdef FEAT_AUTOCMD
10792 	    /* Don't copy 'filetype', it must be detected */
10793 	    buf->b_p_ft = empty_option;
10794 #endif
10795 	    buf->b_p_pi = p_pi;
10796 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
10797 	    buf->b_p_cinw = vim_strsave(p_cinw);
10798 #endif
10799 #ifdef FEAT_LISP
10800 	    buf->b_p_lisp = p_lisp;
10801 #endif
10802 #ifdef FEAT_SYN_HL
10803 	    /* Don't copy 'syntax', it must be set */
10804 	    buf->b_p_syn = empty_option;
10805 	    buf->b_p_smc = p_smc;
10806 #endif
10807 #ifdef FEAT_SPELL
10808 	    buf->b_s.b_p_spc = vim_strsave(p_spc);
10809 	    (void)compile_cap_prog(&buf->b_s);
10810 	    buf->b_s.b_p_spf = vim_strsave(p_spf);
10811 	    buf->b_s.b_p_spl = vim_strsave(p_spl);
10812 #endif
10813 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
10814 	    buf->b_p_inde = vim_strsave(p_inde);
10815 	    buf->b_p_indk = vim_strsave(p_indk);
10816 #endif
10817 #if defined(FEAT_EVAL)
10818 	    buf->b_p_fex = vim_strsave(p_fex);
10819 #endif
10820 #ifdef FEAT_CRYPT
10821 	    buf->b_p_key = vim_strsave(p_key);
10822 #endif
10823 #ifdef FEAT_SEARCHPATH
10824 	    buf->b_p_sua = vim_strsave(p_sua);
10825 #endif
10826 #ifdef FEAT_KEYMAP
10827 	    buf->b_p_keymap = vim_strsave(p_keymap);
10828 	    buf->b_kmap_state |= KEYMAP_INIT;
10829 #endif
10830 	    /* This isn't really an option, but copying the langmap and IME
10831 	     * state from the current buffer is better than resetting it. */
10832 	    buf->b_p_iminsert = p_iminsert;
10833 	    buf->b_p_imsearch = p_imsearch;
10834 
10835 	    /* options that are normally global but also have a local value
10836 	     * are not copied, start using the global value */
10837 	    buf->b_p_ar = -1;
10838 	    buf->b_p_ul = NO_LOCAL_UNDOLEVEL;
10839 	    buf->b_p_bkc = empty_option;
10840 	    buf->b_bkc_flags = 0;
10841 #ifdef FEAT_QUICKFIX
10842 	    buf->b_p_gp = empty_option;
10843 	    buf->b_p_mp = empty_option;
10844 	    buf->b_p_efm = empty_option;
10845 #endif
10846 	    buf->b_p_ep = empty_option;
10847 	    buf->b_p_kp = empty_option;
10848 	    buf->b_p_path = empty_option;
10849 	    buf->b_p_tags = empty_option;
10850 	    buf->b_p_tc = empty_option;
10851 	    buf->b_tc_flags = 0;
10852 #ifdef FEAT_FIND_ID
10853 	    buf->b_p_def = empty_option;
10854 	    buf->b_p_inc = empty_option;
10855 # ifdef FEAT_EVAL
10856 	    buf->b_p_inex = vim_strsave(p_inex);
10857 # endif
10858 #endif
10859 #ifdef FEAT_INS_EXPAND
10860 	    buf->b_p_dict = empty_option;
10861 	    buf->b_p_tsr = empty_option;
10862 #endif
10863 #ifdef FEAT_TEXTOBJ
10864 	    buf->b_p_qe = vim_strsave(p_qe);
10865 #endif
10866 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
10867 	    buf->b_p_bexpr = empty_option;
10868 #endif
10869 #if defined(FEAT_CRYPT)
10870 	    buf->b_p_cm = empty_option;
10871 #endif
10872 #ifdef FEAT_PERSISTENT_UNDO
10873 	    buf->b_p_udf = p_udf;
10874 #endif
10875 #ifdef FEAT_LISP
10876 	    buf->b_p_lw = empty_option;
10877 #endif
10878 
10879 	    /*
10880 	     * Don't copy the options set by ex_help(), use the saved values,
10881 	     * when going from a help buffer to a non-help buffer.
10882 	     * Don't touch these at all when BCO_NOHELP is used and going from
10883 	     * or to a help buffer.
10884 	     */
10885 	    if (dont_do_help)
10886 		buf->b_p_isk = save_p_isk;
10887 	    else
10888 	    {
10889 		buf->b_p_isk = vim_strsave(p_isk);
10890 		did_isk = TRUE;
10891 		buf->b_p_ts = p_ts;
10892 		buf->b_help = FALSE;
10893 #ifdef FEAT_QUICKFIX
10894 		if (buf->b_p_bt[0] == 'h')
10895 		    clear_string_option(&buf->b_p_bt);
10896 #endif
10897 		buf->b_p_ma = p_ma;
10898 	    }
10899 	}
10900 
10901 	/*
10902 	 * When the options should be copied (ignoring BCO_ALWAYS), set the
10903 	 * flag that indicates that the options have been initialized.
10904 	 */
10905 	if (should_copy)
10906 	    buf->b_p_initialized = TRUE;
10907     }
10908 
10909     check_buf_options(buf);	    /* make sure we don't have NULLs */
10910     if (did_isk)
10911 	(void)buf_init_chartab(buf, FALSE);
10912 }
10913 
10914 /*
10915  * Reset the 'modifiable' option and its default value.
10916  */
10917     void
10918 reset_modifiable()
10919 {
10920     int		opt_idx;
10921 
10922     curbuf->b_p_ma = FALSE;
10923     p_ma = FALSE;
10924     opt_idx = findoption((char_u *)"ma");
10925     if (opt_idx >= 0)
10926 	options[opt_idx].def_val[VI_DEFAULT] = FALSE;
10927 }
10928 
10929 /*
10930  * Set the global value for 'iminsert' to the local value.
10931  */
10932     void
10933 set_iminsert_global()
10934 {
10935     p_iminsert = curbuf->b_p_iminsert;
10936 }
10937 
10938 /*
10939  * Set the global value for 'imsearch' to the local value.
10940  */
10941     void
10942 set_imsearch_global()
10943 {
10944     p_imsearch = curbuf->b_p_imsearch;
10945 }
10946 
10947 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
10948 static int expand_option_idx = -1;
10949 static char_u expand_option_name[5] = {'t', '_', NUL, NUL, NUL};
10950 static int expand_option_flags = 0;
10951 
10952     void
10953 set_context_in_set_cmd(xp, arg, opt_flags)
10954     expand_T	*xp;
10955     char_u	*arg;
10956     int		opt_flags;	/* OPT_GLOBAL and/or OPT_LOCAL */
10957 {
10958     int		nextchar;
10959     long_u	flags = 0;	/* init for GCC */
10960     int		opt_idx = 0;	/* init for GCC */
10961     char_u	*p;
10962     char_u	*s;
10963     int		is_term_option = FALSE;
10964     int		key;
10965 
10966     expand_option_flags = opt_flags;
10967 
10968     xp->xp_context = EXPAND_SETTINGS;
10969     if (*arg == NUL)
10970     {
10971 	xp->xp_pattern = arg;
10972 	return;
10973     }
10974     p = arg + STRLEN(arg) - 1;
10975     if (*p == ' ' && *(p - 1) != '\\')
10976     {
10977 	xp->xp_pattern = p + 1;
10978 	return;
10979     }
10980     while (p > arg)
10981     {
10982 	s = p;
10983 	/* count number of backslashes before ' ' or ',' */
10984 	if (*p == ' ' || *p == ',')
10985 	{
10986 	    while (s > arg && *(s - 1) == '\\')
10987 		--s;
10988 	}
10989 	/* break at a space with an even number of backslashes */
10990 	if (*p == ' ' && ((p - s) & 1) == 0)
10991 	{
10992 	    ++p;
10993 	    break;
10994 	}
10995 	--p;
10996     }
10997     if (STRNCMP(p, "no", 2) == 0 && STRNCMP(p, "novice", 6) != 0)
10998     {
10999 	xp->xp_context = EXPAND_BOOL_SETTINGS;
11000 	p += 2;
11001     }
11002     if (STRNCMP(p, "inv", 3) == 0)
11003     {
11004 	xp->xp_context = EXPAND_BOOL_SETTINGS;
11005 	p += 3;
11006     }
11007     xp->xp_pattern = arg = p;
11008     if (*arg == '<')
11009     {
11010 	while (*p != '>')
11011 	    if (*p++ == NUL)	    /* expand terminal option name */
11012 		return;
11013 	key = get_special_key_code(arg + 1);
11014 	if (key == 0)		    /* unknown name */
11015 	{
11016 	    xp->xp_context = EXPAND_NOTHING;
11017 	    return;
11018 	}
11019 	nextchar = *++p;
11020 	is_term_option = TRUE;
11021 	expand_option_name[2] = KEY2TERMCAP0(key);
11022 	expand_option_name[3] = KEY2TERMCAP1(key);
11023     }
11024     else
11025     {
11026 	if (p[0] == 't' && p[1] == '_')
11027 	{
11028 	    p += 2;
11029 	    if (*p != NUL)
11030 		++p;
11031 	    if (*p == NUL)
11032 		return;		/* expand option name */
11033 	    nextchar = *++p;
11034 	    is_term_option = TRUE;
11035 	    expand_option_name[2] = p[-2];
11036 	    expand_option_name[3] = p[-1];
11037 	}
11038 	else
11039 	{
11040 		/* Allow * wildcard */
11041 	    while (ASCII_ISALNUM(*p) || *p == '_' || *p == '*')
11042 		p++;
11043 	    if (*p == NUL)
11044 		return;
11045 	    nextchar = *p;
11046 	    *p = NUL;
11047 	    opt_idx = findoption(arg);
11048 	    *p = nextchar;
11049 	    if (opt_idx == -1 || options[opt_idx].var == NULL)
11050 	    {
11051 		xp->xp_context = EXPAND_NOTHING;
11052 		return;
11053 	    }
11054 	    flags = options[opt_idx].flags;
11055 	    if (flags & P_BOOL)
11056 	    {
11057 		xp->xp_context = EXPAND_NOTHING;
11058 		return;
11059 	    }
11060 	}
11061     }
11062     /* handle "-=" and "+=" */
11063     if ((nextchar == '-' || nextchar == '+' || nextchar == '^') && p[1] == '=')
11064     {
11065 	++p;
11066 	nextchar = '=';
11067     }
11068     if ((nextchar != '=' && nextchar != ':')
11069 				    || xp->xp_context == EXPAND_BOOL_SETTINGS)
11070     {
11071 	xp->xp_context = EXPAND_UNSUCCESSFUL;
11072 	return;
11073     }
11074     if (xp->xp_context != EXPAND_BOOL_SETTINGS && p[1] == NUL)
11075     {
11076 	xp->xp_context = EXPAND_OLD_SETTING;
11077 	if (is_term_option)
11078 	    expand_option_idx = -1;
11079 	else
11080 	    expand_option_idx = opt_idx;
11081 	xp->xp_pattern = p + 1;
11082 	return;
11083     }
11084     xp->xp_context = EXPAND_NOTHING;
11085     if (is_term_option || (flags & P_NUM))
11086 	return;
11087 
11088     xp->xp_pattern = p + 1;
11089 
11090     if (flags & P_EXPAND)
11091     {
11092 	p = options[opt_idx].var;
11093 	if (p == (char_u *)&p_bdir
11094 		|| p == (char_u *)&p_dir
11095 		|| p == (char_u *)&p_path
11096 		|| p == (char_u *)&p_rtp
11097 #ifdef FEAT_SEARCHPATH
11098 		|| p == (char_u *)&p_cdpath
11099 #endif
11100 #ifdef FEAT_SESSION
11101 		|| p == (char_u *)&p_vdir
11102 #endif
11103 		)
11104 	{
11105 	    xp->xp_context = EXPAND_DIRECTORIES;
11106 	    if (p == (char_u *)&p_path
11107 #ifdef FEAT_SEARCHPATH
11108 		    || p == (char_u *)&p_cdpath
11109 #endif
11110 		   )
11111 		xp->xp_backslash = XP_BS_THREE;
11112 	    else
11113 		xp->xp_backslash = XP_BS_ONE;
11114 	}
11115 	else
11116 	{
11117 	    xp->xp_context = EXPAND_FILES;
11118 	    /* for 'tags' need three backslashes for a space */
11119 	    if (p == (char_u *)&p_tags)
11120 		xp->xp_backslash = XP_BS_THREE;
11121 	    else
11122 		xp->xp_backslash = XP_BS_ONE;
11123 	}
11124     }
11125 
11126     /* For an option that is a list of file names, find the start of the
11127      * last file name. */
11128     for (p = arg + STRLEN(arg) - 1; p > xp->xp_pattern; --p)
11129     {
11130 	/* count number of backslashes before ' ' or ',' */
11131 	if (*p == ' ' || *p == ',')
11132 	{
11133 	    s = p;
11134 	    while (s > xp->xp_pattern && *(s - 1) == '\\')
11135 		--s;
11136 	    if ((*p == ' ' && (xp->xp_backslash == XP_BS_THREE && (p - s) < 3))
11137 		    || (*p == ',' && (flags & P_COMMA) && ((p - s) & 1) == 0))
11138 	    {
11139 		xp->xp_pattern = p + 1;
11140 		break;
11141 	    }
11142 	}
11143 
11144 #ifdef FEAT_SPELL
11145 	/* for 'spellsuggest' start at "file:" */
11146 	if (options[opt_idx].var == (char_u *)&p_sps
11147 					       && STRNCMP(p, "file:", 5) == 0)
11148 	{
11149 	    xp->xp_pattern = p + 5;
11150 	    break;
11151 	}
11152 #endif
11153     }
11154 
11155     return;
11156 }
11157 
11158     int
11159 ExpandSettings(xp, regmatch, num_file, file)
11160     expand_T	*xp;
11161     regmatch_T	*regmatch;
11162     int		*num_file;
11163     char_u	***file;
11164 {
11165     int		num_normal = 0;	    /* Nr of matching non-term-code settings */
11166     int		num_term = 0;	    /* Nr of matching terminal code settings */
11167     int		opt_idx;
11168     int		match;
11169     int		count = 0;
11170     char_u	*str;
11171     int		loop;
11172     int		is_term_opt;
11173     char_u	name_buf[MAX_KEY_NAME_LEN];
11174     static char *(names[]) = {"all", "termcap"};
11175     int		ic = regmatch->rm_ic;	/* remember the ignore-case flag */
11176 
11177     /* do this loop twice:
11178      * loop == 0: count the number of matching options
11179      * loop == 1: copy the matching options into allocated memory
11180      */
11181     for (loop = 0; loop <= 1; ++loop)
11182     {
11183 	regmatch->rm_ic = ic;
11184 	if (xp->xp_context != EXPAND_BOOL_SETTINGS)
11185 	{
11186 	    for (match = 0; match < (int)(sizeof(names) / sizeof(char *));
11187 								      ++match)
11188 		if (vim_regexec(regmatch, (char_u *)names[match], (colnr_T)0))
11189 		{
11190 		    if (loop == 0)
11191 			num_normal++;
11192 		    else
11193 			(*file)[count++] = vim_strsave((char_u *)names[match]);
11194 		}
11195 	}
11196 	for (opt_idx = 0; (str = (char_u *)options[opt_idx].fullname) != NULL;
11197 								    opt_idx++)
11198 	{
11199 	    if (options[opt_idx].var == NULL)
11200 		continue;
11201 	    if (xp->xp_context == EXPAND_BOOL_SETTINGS
11202 	      && !(options[opt_idx].flags & P_BOOL))
11203 		continue;
11204 	    is_term_opt = istermoption(&options[opt_idx]);
11205 	    if (is_term_opt && num_normal > 0)
11206 		continue;
11207 	    match = FALSE;
11208 	    if (vim_regexec(regmatch, str, (colnr_T)0)
11209 		    || (options[opt_idx].shortname != NULL
11210 			&& vim_regexec(regmatch,
11211 			   (char_u *)options[opt_idx].shortname, (colnr_T)0)))
11212 		match = TRUE;
11213 	    else if (is_term_opt)
11214 	    {
11215 		name_buf[0] = '<';
11216 		name_buf[1] = 't';
11217 		name_buf[2] = '_';
11218 		name_buf[3] = str[2];
11219 		name_buf[4] = str[3];
11220 		name_buf[5] = '>';
11221 		name_buf[6] = NUL;
11222 		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
11223 		{
11224 		    match = TRUE;
11225 		    str = name_buf;
11226 		}
11227 	    }
11228 	    if (match)
11229 	    {
11230 		if (loop == 0)
11231 		{
11232 		    if (is_term_opt)
11233 			num_term++;
11234 		    else
11235 			num_normal++;
11236 		}
11237 		else
11238 		    (*file)[count++] = vim_strsave(str);
11239 	    }
11240 	}
11241 	/*
11242 	 * Check terminal key codes, these are not in the option table
11243 	 */
11244 	if (xp->xp_context != EXPAND_BOOL_SETTINGS  && num_normal == 0)
11245 	{
11246 	    for (opt_idx = 0; (str = get_termcode(opt_idx)) != NULL; opt_idx++)
11247 	    {
11248 		if (!isprint(str[0]) || !isprint(str[1]))
11249 		    continue;
11250 
11251 		name_buf[0] = 't';
11252 		name_buf[1] = '_';
11253 		name_buf[2] = str[0];
11254 		name_buf[3] = str[1];
11255 		name_buf[4] = NUL;
11256 
11257 		match = FALSE;
11258 		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
11259 		    match = TRUE;
11260 		else
11261 		{
11262 		    name_buf[0] = '<';
11263 		    name_buf[1] = 't';
11264 		    name_buf[2] = '_';
11265 		    name_buf[3] = str[0];
11266 		    name_buf[4] = str[1];
11267 		    name_buf[5] = '>';
11268 		    name_buf[6] = NUL;
11269 
11270 		    if (vim_regexec(regmatch, name_buf, (colnr_T)0))
11271 			match = TRUE;
11272 		}
11273 		if (match)
11274 		{
11275 		    if (loop == 0)
11276 			num_term++;
11277 		    else
11278 			(*file)[count++] = vim_strsave(name_buf);
11279 		}
11280 	    }
11281 
11282 	    /*
11283 	     * Check special key names.
11284 	     */
11285 	    regmatch->rm_ic = TRUE;		/* ignore case here */
11286 	    for (opt_idx = 0; (str = get_key_name(opt_idx)) != NULL; opt_idx++)
11287 	    {
11288 		name_buf[0] = '<';
11289 		STRCPY(name_buf + 1, str);
11290 		STRCAT(name_buf, ">");
11291 
11292 		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
11293 		{
11294 		    if (loop == 0)
11295 			num_term++;
11296 		    else
11297 			(*file)[count++] = vim_strsave(name_buf);
11298 		}
11299 	    }
11300 	}
11301 	if (loop == 0)
11302 	{
11303 	    if (num_normal > 0)
11304 		*num_file = num_normal;
11305 	    else if (num_term > 0)
11306 		*num_file = num_term;
11307 	    else
11308 		return OK;
11309 	    *file = (char_u **)alloc((unsigned)(*num_file * sizeof(char_u *)));
11310 	    if (*file == NULL)
11311 	    {
11312 		*file = (char_u **)"";
11313 		return FAIL;
11314 	    }
11315 	}
11316     }
11317     return OK;
11318 }
11319 
11320     int
11321 ExpandOldSetting(num_file, file)
11322     int	    *num_file;
11323     char_u  ***file;
11324 {
11325     char_u  *var = NULL;	/* init for GCC */
11326     char_u  *buf;
11327 
11328     *num_file = 0;
11329     *file = (char_u **)alloc((unsigned)sizeof(char_u *));
11330     if (*file == NULL)
11331 	return FAIL;
11332 
11333     /*
11334      * For a terminal key code expand_option_idx is < 0.
11335      */
11336     if (expand_option_idx < 0)
11337     {
11338 	var = find_termcode(expand_option_name + 2);
11339 	if (var == NULL)
11340 	    expand_option_idx = findoption(expand_option_name);
11341     }
11342 
11343     if (expand_option_idx >= 0)
11344     {
11345 	/* put string of option value in NameBuff */
11346 	option_value2string(&options[expand_option_idx], expand_option_flags);
11347 	var = NameBuff;
11348     }
11349     else if (var == NULL)
11350 	var = (char_u *)"";
11351 
11352     /* A backslash is required before some characters.  This is the reverse of
11353      * what happens in do_set(). */
11354     buf = vim_strsave_escaped(var, escape_chars);
11355 
11356     if (buf == NULL)
11357     {
11358 	vim_free(*file);
11359 	*file = NULL;
11360 	return FAIL;
11361     }
11362 
11363 #ifdef BACKSLASH_IN_FILENAME
11364     /* For MS-Windows et al. we don't double backslashes at the start and
11365      * before a file name character. */
11366     for (var = buf; *var != NUL; mb_ptr_adv(var))
11367 	if (var[0] == '\\' && var[1] == '\\'
11368 		&& expand_option_idx >= 0
11369 		&& (options[expand_option_idx].flags & P_EXPAND)
11370 		&& vim_isfilec(var[2])
11371 		&& (var[2] != '\\' || (var == buf && var[4] != '\\')))
11372 	    STRMOVE(var, var + 1);
11373 #endif
11374 
11375     *file[0] = buf;
11376     *num_file = 1;
11377     return OK;
11378 }
11379 #endif
11380 
11381 /*
11382  * Get the value for the numeric or string option *opp in a nice format into
11383  * NameBuff[].  Must not be called with a hidden option!
11384  */
11385     static void
11386 option_value2string(opp, opt_flags)
11387     struct vimoption	*opp;
11388     int			opt_flags;	/* OPT_GLOBAL and/or OPT_LOCAL */
11389 {
11390     char_u	*varp;
11391 
11392     varp = get_varp_scope(opp, opt_flags);
11393 
11394     if (opp->flags & P_NUM)
11395     {
11396 	long wc = 0;
11397 
11398 	if (wc_use_keyname(varp, &wc))
11399 	    STRCPY(NameBuff, get_special_key_name((int)wc, 0));
11400 	else if (wc != 0)
11401 	    STRCPY(NameBuff, transchar((int)wc));
11402 	else
11403 	    sprintf((char *)NameBuff, "%ld", *(long *)varp);
11404     }
11405     else    /* P_STRING */
11406     {
11407 	varp = *(char_u **)(varp);
11408 	if (varp == NULL)		    /* just in case */
11409 	    NameBuff[0] = NUL;
11410 #ifdef FEAT_CRYPT
11411 	/* don't show the actual value of 'key', only that it's set */
11412 	else if (opp->var == (char_u *)&p_key && *varp)
11413 	    STRCPY(NameBuff, "*****");
11414 #endif
11415 	else if (opp->flags & P_EXPAND)
11416 	    home_replace(NULL, varp, NameBuff, MAXPATHL, FALSE);
11417 	/* Translate 'pastetoggle' into special key names */
11418 	else if ((char_u **)opp->var == &p_pt)
11419 	    str2specialbuf(p_pt, NameBuff, MAXPATHL);
11420 	else
11421 	    vim_strncpy(NameBuff, varp, MAXPATHL - 1);
11422     }
11423 }
11424 
11425 /*
11426  * Return TRUE if "varp" points to 'wildchar' or 'wildcharm' and it can be
11427  * printed as a keyname.
11428  * "*wcp" is set to the value of the option if it's 'wildchar' or 'wildcharm'.
11429  */
11430     static int
11431 wc_use_keyname(varp, wcp)
11432     char_u	*varp;
11433     long	*wcp;
11434 {
11435     if (((long *)varp == &p_wc) || ((long *)varp == &p_wcm))
11436     {
11437 	*wcp = *(long *)varp;
11438 	if (IS_SPECIAL(*wcp) || find_special_key_in_table((int)*wcp) >= 0)
11439 	    return TRUE;
11440     }
11441     return FALSE;
11442 }
11443 
11444 #if defined(FEAT_LANGMAP) || defined(PROTO)
11445 /*
11446  * Any character has an equivalent 'langmap' character.  This is used for
11447  * keyboards that have a special language mode that sends characters above
11448  * 128 (although other characters can be translated too).  The "to" field is a
11449  * Vim command character.  This avoids having to switch the keyboard back to
11450  * ASCII mode when leaving Insert mode.
11451  *
11452  * langmap_mapchar[] maps any of 256 chars to an ASCII char used for Vim
11453  * commands.
11454  * When FEAT_MBYTE is defined langmap_mapga.ga_data is a sorted table of
11455  * langmap_entry_T.  This does the same as langmap_mapchar[] for characters >=
11456  * 256.
11457  */
11458 # if defined(FEAT_MBYTE) || defined(PROTO)
11459 /*
11460  * With multi-byte support use growarray for 'langmap' chars >= 256
11461  */
11462 typedef struct
11463 {
11464     int	    from;
11465     int     to;
11466 } langmap_entry_T;
11467 
11468 static garray_T langmap_mapga;
11469 static void langmap_set_entry __ARGS((int from, int to));
11470 
11471 /*
11472  * Search for an entry in "langmap_mapga" for "from".  If found set the "to"
11473  * field.  If not found insert a new entry at the appropriate location.
11474  */
11475     static void
11476 langmap_set_entry(from, to)
11477     int    from;
11478     int    to;
11479 {
11480     langmap_entry_T *entries = (langmap_entry_T *)(langmap_mapga.ga_data);
11481     int		    a = 0;
11482     int		    b = langmap_mapga.ga_len;
11483 
11484     /* Do a binary search for an existing entry. */
11485     while (a != b)
11486     {
11487 	int i = (a + b) / 2;
11488 	int d = entries[i].from - from;
11489 
11490 	if (d == 0)
11491 	{
11492 	    entries[i].to = to;
11493 	    return;
11494 	}
11495 	if (d < 0)
11496 	    a = i + 1;
11497 	else
11498 	    b = i;
11499     }
11500 
11501     if (ga_grow(&langmap_mapga, 1) != OK)
11502 	return;  /* out of memory */
11503 
11504     /* insert new entry at position "a" */
11505     entries = (langmap_entry_T *)(langmap_mapga.ga_data) + a;
11506     mch_memmove(entries + 1, entries,
11507 			(langmap_mapga.ga_len - a) * sizeof(langmap_entry_T));
11508     ++langmap_mapga.ga_len;
11509     entries[0].from = from;
11510     entries[0].to = to;
11511 }
11512 
11513 /*
11514  * Apply 'langmap' to multi-byte character "c" and return the result.
11515  */
11516     int
11517 langmap_adjust_mb(c)
11518     int c;
11519 {
11520     langmap_entry_T *entries = (langmap_entry_T *)(langmap_mapga.ga_data);
11521     int a = 0;
11522     int b = langmap_mapga.ga_len;
11523 
11524     while (a != b)
11525     {
11526 	int i = (a + b) / 2;
11527 	int d = entries[i].from - c;
11528 
11529 	if (d == 0)
11530 	    return entries[i].to;  /* found matching entry */
11531 	if (d < 0)
11532 	    a = i + 1;
11533 	else
11534 	    b = i;
11535     }
11536     return c;  /* no entry found, return "c" unmodified */
11537 }
11538 # endif
11539 
11540     static void
11541 langmap_init()
11542 {
11543     int i;
11544 
11545     for (i = 0; i < 256; i++)
11546 	langmap_mapchar[i] = i;	 /* we init with a one-to-one map */
11547 # ifdef FEAT_MBYTE
11548     ga_init2(&langmap_mapga, sizeof(langmap_entry_T), 8);
11549 # endif
11550 }
11551 
11552 /*
11553  * Called when langmap option is set; the language map can be
11554  * changed at any time!
11555  */
11556     static void
11557 langmap_set()
11558 {
11559     char_u  *p;
11560     char_u  *p2;
11561     int	    from, to;
11562 
11563 #ifdef FEAT_MBYTE
11564     ga_clear(&langmap_mapga);		    /* clear the previous map first */
11565 #endif
11566     langmap_init();			    /* back to one-to-one map */
11567 
11568     for (p = p_langmap; p[0] != NUL; )
11569     {
11570 	for (p2 = p; p2[0] != NUL && p2[0] != ',' && p2[0] != ';';
11571 							       mb_ptr_adv(p2))
11572 	{
11573 	    if (p2[0] == '\\' && p2[1] != NUL)
11574 		++p2;
11575 	}
11576 	if (p2[0] == ';')
11577 	    ++p2;	    /* abcd;ABCD form, p2 points to A */
11578 	else
11579 	    p2 = NULL;	    /* aAbBcCdD form, p2 is NULL */
11580 	while (p[0])
11581 	{
11582 	    if (p[0] == ',')
11583 	    {
11584 		++p;
11585 		break;
11586 	    }
11587 	    if (p[0] == '\\' && p[1] != NUL)
11588 		++p;
11589 #ifdef FEAT_MBYTE
11590 	    from = (*mb_ptr2char)(p);
11591 #else
11592 	    from = p[0];
11593 #endif
11594 	    to = NUL;
11595 	    if (p2 == NULL)
11596 	    {
11597 		mb_ptr_adv(p);
11598 		if (p[0] != ',')
11599 		{
11600 		    if (p[0] == '\\')
11601 			++p;
11602 #ifdef FEAT_MBYTE
11603 		    to = (*mb_ptr2char)(p);
11604 #else
11605 		    to = p[0];
11606 #endif
11607 		}
11608 	    }
11609 	    else
11610 	    {
11611 		if (p2[0] != ',')
11612 		{
11613 		    if (p2[0] == '\\')
11614 			++p2;
11615 #ifdef FEAT_MBYTE
11616 		    to = (*mb_ptr2char)(p2);
11617 #else
11618 		    to = p2[0];
11619 #endif
11620 		}
11621 	    }
11622 	    if (to == NUL)
11623 	    {
11624 		EMSG2(_("E357: 'langmap': Matching character missing for %s"),
11625 							     transchar(from));
11626 		return;
11627 	    }
11628 
11629 #ifdef FEAT_MBYTE
11630 	    if (from >= 256)
11631 		langmap_set_entry(from, to);
11632 	    else
11633 #endif
11634 		langmap_mapchar[from & 255] = to;
11635 
11636 	    /* Advance to next pair */
11637 	    mb_ptr_adv(p);
11638 	    if (p2 != NULL)
11639 	    {
11640 		mb_ptr_adv(p2);
11641 		if (*p == ';')
11642 		{
11643 		    p = p2;
11644 		    if (p[0] != NUL)
11645 		    {
11646 			if (p[0] != ',')
11647 			{
11648 			    EMSG2(_("E358: 'langmap': Extra characters after semicolon: %s"), p);
11649 			    return;
11650 			}
11651 			++p;
11652 		    }
11653 		    break;
11654 		}
11655 	    }
11656 	}
11657     }
11658 }
11659 #endif
11660 
11661 /*
11662  * Return TRUE if format option 'x' is in effect.
11663  * Take care of no formatting when 'paste' is set.
11664  */
11665     int
11666 has_format_option(x)
11667     int		x;
11668 {
11669     if (p_paste)
11670 	return FALSE;
11671     return (vim_strchr(curbuf->b_p_fo, x) != NULL);
11672 }
11673 
11674 /*
11675  * Return TRUE if "x" is present in 'shortmess' option, or
11676  * 'shortmess' contains 'a' and "x" is present in SHM_A.
11677  */
11678     int
11679 shortmess(x)
11680     int	    x;
11681 {
11682     return p_shm != NULL &&
11683 	    (   vim_strchr(p_shm, x) != NULL
11684 	    || (vim_strchr(p_shm, 'a') != NULL
11685 		&& vim_strchr((char_u *)SHM_A, x) != NULL));
11686 }
11687 
11688 /*
11689  * paste_option_changed() - Called after p_paste was set or reset.
11690  */
11691     static void
11692 paste_option_changed()
11693 {
11694     static int	old_p_paste = FALSE;
11695     static int	save_sm = 0;
11696     static int	save_sta = 0;
11697 #ifdef FEAT_CMDL_INFO
11698     static int	save_ru = 0;
11699 #endif
11700 #ifdef FEAT_RIGHTLEFT
11701     static int	save_ri = 0;
11702     static int	save_hkmap = 0;
11703 #endif
11704     buf_T	*buf;
11705 
11706     if (p_paste)
11707     {
11708 	/*
11709 	 * Paste switched from off to on.
11710 	 * Save the current values, so they can be restored later.
11711 	 */
11712 	if (!old_p_paste)
11713 	{
11714 	    /* save options for each buffer */
11715 	    for (buf = firstbuf; buf != NULL; buf = buf->b_next)
11716 	    {
11717 		buf->b_p_tw_nopaste = buf->b_p_tw;
11718 		buf->b_p_wm_nopaste = buf->b_p_wm;
11719 		buf->b_p_sts_nopaste = buf->b_p_sts;
11720 		buf->b_p_ai_nopaste = buf->b_p_ai;
11721 		buf->b_p_et_nopaste = buf->b_p_et;
11722 	    }
11723 
11724 	    /* save global options */
11725 	    save_sm = p_sm;
11726 	    save_sta = p_sta;
11727 #ifdef FEAT_CMDL_INFO
11728 	    save_ru = p_ru;
11729 #endif
11730 #ifdef FEAT_RIGHTLEFT
11731 	    save_ri = p_ri;
11732 	    save_hkmap = p_hkmap;
11733 #endif
11734 	    /* save global values for local buffer options */
11735 	    p_ai_nopaste = p_ai;
11736 	    p_et_nopaste = p_et;
11737 	    p_sts_nopaste = p_sts;
11738 	    p_tw_nopaste = p_tw;
11739 	    p_wm_nopaste = p_wm;
11740 	}
11741 
11742 	/*
11743 	 * Always set the option values, also when 'paste' is set when it is
11744 	 * already on.
11745 	 */
11746 	/* set options for each buffer */
11747 	for (buf = firstbuf; buf != NULL; buf = buf->b_next)
11748 	{
11749 	    buf->b_p_tw = 0;	    /* textwidth is 0 */
11750 	    buf->b_p_wm = 0;	    /* wrapmargin is 0 */
11751 	    buf->b_p_sts = 0;	    /* softtabstop is 0 */
11752 	    buf->b_p_ai = 0;	    /* no auto-indent */
11753 	    buf->b_p_et = 0;	    /* no expandtab */
11754 	}
11755 
11756 	/* set global options */
11757 	p_sm = 0;		    /* no showmatch */
11758 	p_sta = 0;		    /* no smarttab */
11759 #ifdef FEAT_CMDL_INFO
11760 # ifdef FEAT_WINDOWS
11761 	if (p_ru)
11762 	    status_redraw_all();    /* redraw to remove the ruler */
11763 # endif
11764 	p_ru = 0;		    /* no ruler */
11765 #endif
11766 #ifdef FEAT_RIGHTLEFT
11767 	p_ri = 0;		    /* no reverse insert */
11768 	p_hkmap = 0;		    /* no Hebrew keyboard */
11769 #endif
11770 	/* set global values for local buffer options */
11771 	p_tw = 0;
11772 	p_wm = 0;
11773 	p_sts = 0;
11774 	p_ai = 0;
11775     }
11776 
11777     /*
11778      * Paste switched from on to off: Restore saved values.
11779      */
11780     else if (old_p_paste)
11781     {
11782 	/* restore options for each buffer */
11783 	for (buf = firstbuf; buf != NULL; buf = buf->b_next)
11784 	{
11785 	    buf->b_p_tw = buf->b_p_tw_nopaste;
11786 	    buf->b_p_wm = buf->b_p_wm_nopaste;
11787 	    buf->b_p_sts = buf->b_p_sts_nopaste;
11788 	    buf->b_p_ai = buf->b_p_ai_nopaste;
11789 	    buf->b_p_et = buf->b_p_et_nopaste;
11790 	}
11791 
11792 	/* restore global options */
11793 	p_sm = save_sm;
11794 	p_sta = save_sta;
11795 #ifdef FEAT_CMDL_INFO
11796 # ifdef FEAT_WINDOWS
11797 	if (p_ru != save_ru)
11798 	    status_redraw_all();    /* redraw to draw the ruler */
11799 # endif
11800 	p_ru = save_ru;
11801 #endif
11802 #ifdef FEAT_RIGHTLEFT
11803 	p_ri = save_ri;
11804 	p_hkmap = save_hkmap;
11805 #endif
11806 	/* set global values for local buffer options */
11807 	p_ai = p_ai_nopaste;
11808 	p_et = p_et_nopaste;
11809 	p_sts = p_sts_nopaste;
11810 	p_tw = p_tw_nopaste;
11811 	p_wm = p_wm_nopaste;
11812     }
11813 
11814     old_p_paste = p_paste;
11815 }
11816 
11817 /*
11818  * vimrc_found() - Called when a ".vimrc" or "VIMINIT" has been found.
11819  *
11820  * Reset 'compatible' and set the values for options that didn't get set yet
11821  * to the Vim defaults.
11822  * Don't do this if the 'compatible' option has been set or reset before.
11823  * When "fname" is not NULL, use it to set $"envname" when it wasn't set yet.
11824  */
11825     void
11826 vimrc_found(fname, envname)
11827     char_u	*fname;
11828     char_u	*envname;
11829 {
11830     int		opt_idx;
11831     int		dofree = FALSE;
11832     char_u	*p;
11833 
11834     if (!option_was_set((char_u *)"cp"))
11835     {
11836 	p_cp = FALSE;
11837 	for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
11838 	    if (!(options[opt_idx].flags & (P_WAS_SET|P_VI_DEF)))
11839 		set_option_default(opt_idx, OPT_FREE, FALSE);
11840 	didset_options();
11841 	didset_options2();
11842     }
11843 
11844     if (fname != NULL)
11845     {
11846 	p = vim_getenv(envname, &dofree);
11847 	if (p == NULL)
11848 	{
11849 	    /* Set $MYVIMRC to the first vimrc file found. */
11850 	    p = FullName_save(fname, FALSE);
11851 	    if (p != NULL)
11852 	    {
11853 		vim_setenv(envname, p);
11854 		vim_free(p);
11855 	    }
11856 	}
11857 	else if (dofree)
11858 	    vim_free(p);
11859     }
11860 }
11861 
11862 /*
11863  * Set 'compatible' on or off.  Called for "-C" and "-N" command line arg.
11864  */
11865     void
11866 change_compatible(on)
11867     int	    on;
11868 {
11869     int	    opt_idx;
11870 
11871     if (p_cp != on)
11872     {
11873 	p_cp = on;
11874 	compatible_set();
11875     }
11876     opt_idx = findoption((char_u *)"cp");
11877     if (opt_idx >= 0)
11878 	options[opt_idx].flags |= P_WAS_SET;
11879 }
11880 
11881 /*
11882  * Return TRUE when option "name" has been set.
11883  * Only works correctly for global options.
11884  */
11885     int
11886 option_was_set(name)
11887     char_u	*name;
11888 {
11889     int idx;
11890 
11891     idx = findoption(name);
11892     if (idx < 0)	/* unknown option */
11893 	return FALSE;
11894     if (options[idx].flags & P_WAS_SET)
11895 	return TRUE;
11896     return FALSE;
11897 }
11898 
11899 /*
11900  * Reset the flag indicating option "name" was set.
11901  */
11902     void
11903 reset_option_was_set(name)
11904     char_u	*name;
11905 {
11906     int idx = findoption(name);
11907 
11908     if (idx >= 0)
11909 	options[idx].flags &= ~P_WAS_SET;
11910 }
11911 
11912 /*
11913  * compatible_set() - Called when 'compatible' has been set or unset.
11914  *
11915  * When 'compatible' set: Set all relevant options (those that have the P_VIM)
11916  * flag) to a Vi compatible value.
11917  * When 'compatible' is unset: Set all options that have a different default
11918  * for Vim (without the P_VI_DEF flag) to that default.
11919  */
11920     static void
11921 compatible_set()
11922 {
11923     int	    opt_idx;
11924 
11925     for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
11926 	if (	   ((options[opt_idx].flags & P_VIM) && p_cp)
11927 		|| (!(options[opt_idx].flags & P_VI_DEF) && !p_cp))
11928 	    set_option_default(opt_idx, OPT_FREE, p_cp);
11929     didset_options();
11930     didset_options2();
11931 }
11932 
11933 #ifdef FEAT_LINEBREAK
11934 
11935 # if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
11936    /* Borland C++ screws up loop optimisation here (negri) */
11937   #pragma option -O-l
11938 # endif
11939 
11940 /*
11941  * fill_breakat_flags() -- called when 'breakat' changes value.
11942  */
11943     static void
11944 fill_breakat_flags()
11945 {
11946     char_u	*p;
11947     int		i;
11948 
11949     for (i = 0; i < 256; i++)
11950 	breakat_flags[i] = FALSE;
11951 
11952     if (p_breakat != NULL)
11953 	for (p = p_breakat; *p; p++)
11954 	    breakat_flags[*p] = TRUE;
11955 }
11956 
11957 # if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
11958   #pragma option -O.l
11959 # endif
11960 
11961 #endif
11962 
11963 /*
11964  * Check an option that can be a range of string values.
11965  *
11966  * Return OK for correct value, FAIL otherwise.
11967  * Empty is always OK.
11968  */
11969     static int
11970 check_opt_strings(val, values, list)
11971     char_u	*val;
11972     char	**values;
11973     int		list;	    /* when TRUE: accept a list of values */
11974 {
11975     return opt_strings_flags(val, values, NULL, list);
11976 }
11977 
11978 /*
11979  * Handle an option that can be a range of string values.
11980  * Set a flag in "*flagp" for each string present.
11981  *
11982  * Return OK for correct value, FAIL otherwise.
11983  * Empty is always OK.
11984  */
11985     static int
11986 opt_strings_flags(val, values, flagp, list)
11987     char_u	*val;		/* new value */
11988     char	**values;	/* array of valid string values */
11989     unsigned	*flagp;
11990     int		list;		/* when TRUE: accept a list of values */
11991 {
11992     int		i;
11993     int		len;
11994     unsigned	new_flags = 0;
11995 
11996     while (*val)
11997     {
11998 	for (i = 0; ; ++i)
11999 	{
12000 	    if (values[i] == NULL)	/* val not found in values[] */
12001 		return FAIL;
12002 
12003 	    len = (int)STRLEN(values[i]);
12004 	    if (STRNCMP(values[i], val, len) == 0
12005 		    && ((list && val[len] == ',') || val[len] == NUL))
12006 	    {
12007 		val += len + (val[len] == ',');
12008 		new_flags |= (1 << i);
12009 		break;		/* check next item in val list */
12010 	    }
12011 	}
12012     }
12013     if (flagp != NULL)
12014 	*flagp = new_flags;
12015 
12016     return OK;
12017 }
12018 
12019 /*
12020  * Read the 'wildmode' option, fill wim_flags[].
12021  */
12022     static int
12023 check_opt_wim()
12024 {
12025     char_u	new_wim_flags[4];
12026     char_u	*p;
12027     int		i;
12028     int		idx = 0;
12029 
12030     for (i = 0; i < 4; ++i)
12031 	new_wim_flags[i] = 0;
12032 
12033     for (p = p_wim; *p; ++p)
12034     {
12035 	for (i = 0; ASCII_ISALPHA(p[i]); ++i)
12036 	    ;
12037 	if (p[i] != NUL && p[i] != ',' && p[i] != ':')
12038 	    return FAIL;
12039 	if (i == 7 && STRNCMP(p, "longest", 7) == 0)
12040 	    new_wim_flags[idx] |= WIM_LONGEST;
12041 	else if (i == 4 && STRNCMP(p, "full", 4) == 0)
12042 	    new_wim_flags[idx] |= WIM_FULL;
12043 	else if (i == 4 && STRNCMP(p, "list", 4) == 0)
12044 	    new_wim_flags[idx] |= WIM_LIST;
12045 	else
12046 	    return FAIL;
12047 	p += i;
12048 	if (*p == NUL)
12049 	    break;
12050 	if (*p == ',')
12051 	{
12052 	    if (idx == 3)
12053 		return FAIL;
12054 	    ++idx;
12055 	}
12056     }
12057 
12058     /* fill remaining entries with last flag */
12059     while (idx < 3)
12060     {
12061 	new_wim_flags[idx + 1] = new_wim_flags[idx];
12062 	++idx;
12063     }
12064 
12065     /* only when there are no errors, wim_flags[] is changed */
12066     for (i = 0; i < 4; ++i)
12067 	wim_flags[i] = new_wim_flags[i];
12068     return OK;
12069 }
12070 
12071 /*
12072  * Check if backspacing over something is allowed.
12073  */
12074     int
12075 can_bs(what)
12076     int		what;	    /* BS_INDENT, BS_EOL or BS_START */
12077 {
12078     switch (*p_bs)
12079     {
12080 	case '2':	return TRUE;
12081 	case '1':	return (what != BS_START);
12082 	case '0':	return FALSE;
12083     }
12084     return vim_strchr(p_bs, what) != NULL;
12085 }
12086 
12087 /*
12088  * Save the current values of 'fileformat' and 'fileencoding', so that we know
12089  * the file must be considered changed when the value is different.
12090  */
12091     void
12092 save_file_ff(buf)
12093     buf_T	*buf;
12094 {
12095     buf->b_start_ffc = *buf->b_p_ff;
12096     buf->b_start_eol = buf->b_p_eol;
12097 #ifdef FEAT_MBYTE
12098     buf->b_start_bomb = buf->b_p_bomb;
12099 
12100     /* Only use free/alloc when necessary, they take time. */
12101     if (buf->b_start_fenc == NULL
12102 			     || STRCMP(buf->b_start_fenc, buf->b_p_fenc) != 0)
12103     {
12104 	vim_free(buf->b_start_fenc);
12105 	buf->b_start_fenc = vim_strsave(buf->b_p_fenc);
12106     }
12107 #endif
12108 }
12109 
12110 /*
12111  * Return TRUE if 'fileformat' and/or 'fileencoding' has a different value
12112  * from when editing started (save_file_ff() called).
12113  * Also when 'endofline' was changed and 'binary' is set, or when 'bomb' was
12114  * changed and 'binary' is not set.
12115  * Also when 'endofline' was changed and 'fixeol' is not set.
12116  * When "ignore_empty" is true don't consider a new, empty buffer to be
12117  * changed.
12118  */
12119     int
12120 file_ff_differs(buf, ignore_empty)
12121     buf_T	*buf;
12122     int		ignore_empty;
12123 {
12124     /* In a buffer that was never loaded the options are not valid. */
12125     if (buf->b_flags & BF_NEVERLOADED)
12126 	return FALSE;
12127     if (ignore_empty
12128 	    && (buf->b_flags & BF_NEW)
12129 	    && buf->b_ml.ml_line_count == 1
12130 	    && *ml_get_buf(buf, (linenr_T)1, FALSE) == NUL)
12131 	return FALSE;
12132     if (buf->b_start_ffc != *buf->b_p_ff)
12133 	return TRUE;
12134     if ((buf->b_p_bin || !buf->b_p_fixeol) && buf->b_start_eol != buf->b_p_eol)
12135 	return TRUE;
12136 #ifdef FEAT_MBYTE
12137     if (!buf->b_p_bin && buf->b_start_bomb != buf->b_p_bomb)
12138 	return TRUE;
12139     if (buf->b_start_fenc == NULL)
12140 	return (*buf->b_p_fenc != NUL);
12141     return (STRCMP(buf->b_start_fenc, buf->b_p_fenc) != 0);
12142 #else
12143     return FALSE;
12144 #endif
12145 }
12146 
12147 /*
12148  * return OK if "p" is a valid fileformat name, FAIL otherwise.
12149  */
12150     int
12151 check_ff_value(p)
12152     char_u	*p;
12153 {
12154     return check_opt_strings(p, p_ff_values, FALSE);
12155 }
12156 
12157 /*
12158  * Return the effective shiftwidth value for current buffer, using the
12159  * 'tabstop' value when 'shiftwidth' is zero.
12160  */
12161     long
12162 get_sw_value(buf)
12163     buf_T *buf;
12164 {
12165     return buf->b_p_sw ? buf->b_p_sw : buf->b_p_ts;
12166 }
12167 
12168 /*
12169  * Return the effective softtabstop value for the current buffer, using the
12170  * 'tabstop' value when 'softtabstop' is negative.
12171  */
12172     long
12173 get_sts_value()
12174 {
12175     return curbuf->b_p_sts < 0 ? get_sw_value(curbuf) : curbuf->b_p_sts;
12176 }
12177 
12178 /*
12179  * Check matchpairs option for "*initc".
12180  * If there is a match set "*initc" to the matching character and "*findc" to
12181  * the opposite character.  Set "*backwards" to the direction.
12182  * When "switchit" is TRUE swap the direction.
12183  */
12184     void
12185 find_mps_values(initc, findc, backwards, switchit)
12186     int	    *initc;
12187     int	    *findc;
12188     int	    *backwards;
12189     int	    switchit;
12190 {
12191     char_u	*ptr;
12192 
12193     ptr = curbuf->b_p_mps;
12194     while (*ptr != NUL)
12195     {
12196 #ifdef FEAT_MBYTE
12197 	if (has_mbyte)
12198 	{
12199 	    char_u *prev;
12200 
12201 	    if (mb_ptr2char(ptr) == *initc)
12202 	    {
12203 		if (switchit)
12204 		{
12205 		    *findc = *initc;
12206 		    *initc = mb_ptr2char(ptr + mb_ptr2len(ptr) + 1);
12207 		    *backwards = TRUE;
12208 		}
12209 		else
12210 		{
12211 		    *findc = mb_ptr2char(ptr + mb_ptr2len(ptr) + 1);
12212 		    *backwards = FALSE;
12213 		}
12214 		return;
12215 	    }
12216 	    prev = ptr;
12217 	    ptr += mb_ptr2len(ptr) + 1;
12218 	    if (mb_ptr2char(ptr) == *initc)
12219 	    {
12220 		if (switchit)
12221 		{
12222 		    *findc = *initc;
12223 		    *initc = mb_ptr2char(prev);
12224 		    *backwards = FALSE;
12225 		}
12226 		else
12227 		{
12228 		    *findc = mb_ptr2char(prev);
12229 		    *backwards = TRUE;
12230 		}
12231 		return;
12232 	    }
12233 	    ptr += mb_ptr2len(ptr);
12234 	}
12235 	else
12236 #endif
12237 	{
12238 	    if (*ptr == *initc)
12239 	    {
12240 		if (switchit)
12241 		{
12242 		    *backwards = TRUE;
12243 		    *findc = *initc;
12244 		    *initc = ptr[2];
12245 		}
12246 		else
12247 		{
12248 		    *backwards = FALSE;
12249 		    *findc = ptr[2];
12250 		}
12251 		return;
12252 	    }
12253 	    ptr += 2;
12254 	    if (*ptr == *initc)
12255 	    {
12256 		if (switchit)
12257 		{
12258 		    *backwards = FALSE;
12259 		    *findc = *initc;
12260 		    *initc = ptr[-2];
12261 		}
12262 		else
12263 		{
12264 		    *backwards = TRUE;
12265 		    *findc =  ptr[-2];
12266 		}
12267 		return;
12268 	    }
12269 	    ++ptr;
12270 	}
12271 	if (*ptr == ',')
12272 	    ++ptr;
12273     }
12274 }
12275 
12276 #if defined(FEAT_LINEBREAK) || defined(PROTO)
12277 /*
12278  * This is called when 'breakindentopt' is changed and when a window is
12279  * initialized.
12280  */
12281     static int
12282 briopt_check(wp)
12283     win_T *wp;
12284 {
12285     char_u	*p;
12286     int		bri_shift = 0;
12287     long	bri_min = 20;
12288     int		bri_sbr = FALSE;
12289 
12290     p = wp->w_p_briopt;
12291     while (*p != NUL)
12292     {
12293 	if (STRNCMP(p, "shift:", 6) == 0
12294 		 && ((p[6] == '-' && VIM_ISDIGIT(p[7])) || VIM_ISDIGIT(p[6])))
12295 	{
12296 	    p += 6;
12297 	    bri_shift = getdigits(&p);
12298 	}
12299 	else if (STRNCMP(p, "min:", 4) == 0 && VIM_ISDIGIT(p[4]))
12300 	{
12301 	    p += 4;
12302 	    bri_min = getdigits(&p);
12303 	}
12304 	else if (STRNCMP(p, "sbr", 3) == 0)
12305 	{
12306 	    p += 3;
12307 	    bri_sbr = TRUE;
12308 	}
12309 	if (*p != ',' && *p != NUL)
12310 	    return FAIL;
12311 	if (*p == ',')
12312 	    ++p;
12313     }
12314 
12315     wp->w_p_brishift = bri_shift;
12316     wp->w_p_brimin   = bri_min;
12317     wp->w_p_brisbr   = bri_sbr;
12318 
12319     return OK;
12320 }
12321 #endif
12322 
12323 /*
12324  * Get the local or global value of 'backupcopy'.
12325  */
12326     unsigned int
12327 get_bkc_value(buf)
12328     buf_T *buf;
12329 {
12330     return buf->b_bkc_flags ? buf->b_bkc_flags : bkc_flags;
12331 }
12332